patch-2.0.21-2.1.0 linux/arch/m68k/amiga/amifb.c
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- Lines: 7778
- Date:
Wed Sep 25 10:47:37 1996
- Orig file:
lx2.0/v2.0.21/linux/arch/m68k/amiga/amifb.c
- Orig date:
Mon May 20 07:54:25 1996
diff -u --recursive --new-file lx2.0/v2.0.21/linux/arch/m68k/amiga/amifb.c linux/arch/m68k/amiga/amifb.c
@@ -4,6 +4,8 @@
*
* Copyright (C) 1995 Geert Uytterhoeven
*
+ * with work by Roman Zippel
+ *
*
* This file is based on the Atari frame buffer device (atafb.c):
*
@@ -26,15 +28,19 @@
*
* History:
*
+ * - 24 Jul 96: Copper generates now vblank interrupt and
+ * VESA Power Saving Protocol is fully implemented
+ * - 14 Jul 96: Rework and hopefully last ECS bugs fixed
+ * - 7 Mar 96: Hardware sprite support by Roman Zippel
+ * - 18 Feb 96: OCS and ECS support by Roman Zippel
+ * Hardware functions completely rewritten
* - 2 Dec 95: AGA version by Geert Uytterhoeven
*
- *
* This file is subject to the terms and conditions of the GNU General Public
- * License. See the file COPYING in the main directory of this archive
+ * License. See the file COPYING in the main directory of this archive
* for more details.
*/
-
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
@@ -44,38 +50,46 @@
#include <linux/delay.h>
#include <linux/config.h>
#include <linux/interrupt.h>
+#include <asm/setup.h>
#include <asm/segment.h>
#include <asm/system.h>
#include <asm/irq.h>
#include <asm/amigahw.h>
#include <asm/amigaints.h>
-#include <asm/bootinfo.h>
#include <linux/fb.h>
+#define DEBUG
-#undef CONFIG_AMIFB_OCS
-#undef CONFIG_AMIFB_ECS
-#define CONFIG_AMIFB_AGA /* Only AGA support at the moment */
-
-#define USE_MONO_AMIFB_IF_NON_AGA
-
-
-/* -------------------- BEGIN: TODO ----------------------------------------- **
-
-
- - scan the sources for `TODO'
-
- - timings and monspecs can be set via the kernel command line (cfr. Atari)
-
- - OCS and ECS
-
- - hardware cursor
-
- - Interlaced screen -> Interlaced sprite/hardware cursor
+#if !defined(CONFIG_AMIFB_OCS) && !defined(CONFIG_AMIFB_ECS) && !defined(CONFIG_AMIFB_AGA)
+#define CONFIG_AMIFB_OCS /* define at least one fb driver, this will change later */
+#endif
+#if !defined(CONFIG_AMIFB_OCS)
+# define IS_OCS (0)
+#elif defined(CONFIG_AMIFB_ECS) || defined(CONFIG_AMIFB_AGA)
+# define IS_OCS (chipset == TAG_OCS)
+#else
+# define CONFIG_AMIFB_OCS_ONLY
+# define IS_OCS (1)
+#endif
-** -------------------- END: TODO ------------------------------------------- */
+#if !defined(CONFIG_AMIFB_ECS)
+# define IS_ECS (0)
+#elif defined(CONFIG_AMIFB_OCS) || defined(CONFIG_AMIFB_AGA)
+# define IS_ECS (chipset == TAG_ECS)
+#else
+# define CONFIG_AMIFB_ECS_ONLY
+# define IS_ECS (1)
+#endif
+#if !defined(CONFIG_AMIFB_AGA)
+# define IS_AGA (0)
+#elif defined(CONFIG_AMIFB_OCS) || defined(CONFIG_AMIFB_ECS)
+# define IS_AGA (chipset == TAG_AGA)
+#else
+# define CONFIG_AMIFB_AGA_ONLY
+# define IS_AGA (1)
+#endif
/*******************************************************************************
@@ -184,15 +198,15 @@
-------------------------------------------
Since there are much more parameters for the Amiga display than for the
- frame buffer interface, there must be some dependencies among the Amiga display
- parameters. Here's what I found out:
+ frame buffer interface, there must be some dependencies among the Amiga
+ display parameters. Here's what I found out:
- ddfstrt and ddfstop are best aligned to 64 pixels.
- the chipset needs 64+4 horizontal pixels after the DMA start before the
first pixel is output, so diwstrt_h = ddfstrt+64+4 if you want to
display the first pixel on the line too. Increase diwstrt_h for virtual
screen panning.
- - the display DMA always fetches 64 pixels at a time (*).
+ - the display DMA always fetches 64 pixels at a time (fmode = 3).
- ddfstop is ddfstrt+#pixels-64.
- diwstop_h = diwstrt_h+xres+1. Because of the additional 1 this can be 1
more than htotal.
@@ -205,10 +219,37 @@
cycles from the other DMA channels (audio, floppy and Chip RAM refresh).
- I make diwstop_h and diwstop_v as large as possible.
- (*) This is for fmode = 3. Lower fmodes allow for more freedom w.r.t. the
- timings, but they limit the maximum display depth, and cause more stress
- on the custom chip bus.
+ General dependencies
+ --------------------
+
+ - all values are SHRES pixel (35ns)
+ table 1:fetchstart table 2:prefetch table 3:fetchsize
+ ------------------ ---------------- -----------------
+ Pixclock # SHRES|HIRES|LORES # SHRES|HIRES|LORES # SHRES|HIRES|LORES
+ -------------#------+-----+------#------+-----+------#------+-----+------
+ Bus width 1x # 16 | 32 | 64 # 16 | 32 | 64 # 64 | 64 | 64
+ Bus width 2x # 32 | 64 | 128 # 32 | 64 | 64 # 64 | 64 | 128
+ Bus width 4x # 64 | 128 | 256 # 64 | 64 | 64 # 64 | 128 | 256
+
+ - chipset needs 4 pixels before the first pixel is output
+ - ddfstrt must be aligned to fetchstart (table 1)
+ - chipset needs also prefetch (table 2) to get first pixel data, so
+ ddfstrt = ((diwstrt_h-4) & -fetchstart) - prefetch
+ - for horizontal panning decrease diwstrt_h
+ - the length of a fetchline must be aligned to fetchsize (table 3)
+ - if fetchstart is smaller than fetchsize, then ddfstrt can a little bit
+ moved to optimize use of dma (usefull for OCS/ECS overscan displays)
+ - ddfstop is ddfstrt+ddfsize-fetchsize
+ - If C= didn't change anything for AGA, then at following positions the
+ dma bus is allready used:
+ ddfstrt < 48 -> memory refresh
+ < 96 -> disk dma
+ < 160 -> audio dma
+ < 192 -> sprite 0 dma
+ < 416 -> sprite dma (32 per sprite)
+ - in accordance with the hardware reference manual a hardware stop is at
+ 192, but AGA (ECS?) can go below this.
DMA priorities
--------------
@@ -228,7 +269,7 @@
Implementation
--------------
- aga_decode_var() converts the frame buffer values to the Amiga values. It's
+ ami_decode_var() converts the frame buffer values to the Amiga values. It's
just a `straightforward' implementation of the above rules.
@@ -269,11 +310,6 @@
Broadcast video timings
-----------------------
- Since broadcast video timings are `fixed' and only depend on the video
- system (PAL/NTSC), hsync_len and vsync_len are not used and must be set to
- zero. All xres/yres and margin values are defined within the `visible
- rectangle' of the display.
-
According to the CCIR and RETMA specifications, we have the following values:
CCIR -> PAL
@@ -296,17 +332,23 @@
- set the FB_SYNC_BROADCAST flag to indicate that standard broadcast
timings are to be used.
- - make sure upper_margin+yres+lower_margin = 576 for an interlaced, 288
- for a non-interlaced and 144 for a doublescanned display.
- - make sure (left_margin+xres+right_margin)*pixclock is a reasonable
- approximation to 52.48 µs.
+ - make sure upper_margin+yres+lower_margin+vsync_len = 625 for an
+ interlaced, 312 for a non-interlaced and 156 for a doublescanned
+ display.
+ - make sure left_margin+xres+right_margin+hsync_len = 1816 for a SHRES,
+ 908 for a HIRES and 454 for a LORES display.
+ - the left visible part begins at 360 (SHRES; HIRES:180, LORES:90),
+ left_margin+2*hsync_len must be greater or equal.
+ - the upper visible part begins at 48 (interlaced; non-interlaced:24,
+ doublescanned:12), upper_margin+2*vsync_len must be greater or equal.
+ - ami_encode_var() calculates margins with a hsync of 5320 ns and a vsync
+ of 4 scanlines
The settings for a NTSC compatible display are straightforward.
Note that in a strict sense the PAL and NTSC standards only define the
encoding of the color part (chrominance) of the video signal and don't say
anything about horizontal/vertical synchronization nor refresh rates.
- But since Amigas have RGB output, this issue isn't of any importance here.
-- Geert --
@@ -314,4792 +356,3228 @@
*******************************************************************************/
- /*
- * Custom Chipset Definitions
- */
+ /*
+ * Custom Chipset Definitions
+ */
#define CUSTOM_OFS(fld) ((long)&((struct CUSTOM*)0)->fld)
+ /*
+ * BPLCON0 -- Bitplane Control Register 0
+ */
- /*
- * BPLCON0 -- Bitplane Control Register 0
- */
-
-#define BPC0_HIRES (0x8000)
-#define BPC0_BPU2 (0x4000) /* Bit plane used count */
-#define BPC0_BPU1 (0x2000)
-#define BPC0_BPU0 (0x1000)
-#define BPC0_HAM (0x0800) /* HAM mode */
-#define BPC0_DPF (0x0400) /* Double playfield */
-#define BPC0_COLOR (0x0200) /* Enable colorburst */
-#define BPC0_GAUD (0x0100) /* Genlock audio enable */
-#define BPC0_UHRES (0x0080) /* Ultrahi res enable */
-#define BPC0_SHRES (0x0040) /* Super hi res mode */
-#define BPC0_BYPASS (0x0020) /* Bypass LUT - AGA */
-#define BPC0_BPU3 (0x0010) /* AGA */
-#define BPC0_LPEN (0x0008) /* Light pen enable */
-#define BPC0_LACE (0x0004) /* Interlace */
-#define BPC0_ERSY (0x0002) /* External resync */
-#define BPC0_ECSENA (0x0001) /* ECS emulation disable */
-
-
- /*
- * BPLCON2 -- Bitplane Control Register 2
- */
-
-#define BPC2_ZDBPSEL2 (0x4000) /* Bitplane to be used for ZD - AGA */
-#define BPC2_ZDBPSEL1 (0x2000)
-#define BPC2_ZDBPSEL0 (0x1000)
-#define BPC2_ZDBPEN (0x0800) /* Enable ZD with ZDBPSELx - AGA */
-#define BPC2_ZDCTEN (0x0400) /* Enable ZD with palette bit #31 - AGA */
-#define BPC2_KILLEHB (0x0200) /* Kill EHB mode - AGA */
-#define BPC2_RDRAM (0x0100) /* Color table accesses read, not write - AGA */
-#define BPC2_SOGEN (0x0080) /* SOG output pin high - AGA */
-#define BPC2_PF2PRI (0x0040) /* PF2 priority over PF1 */
-#define BPC2_PF2P2 (0x0020) /* PF2 priority wrt sprites */
-#define BPC2_PF2P1 (0x0010)
-#define BPC2_PF2P0 (0x0008)
-#define BPC2_PF1P2 (0x0004) /* ditto PF1 */
-#define BPC2_PF1P1 (0x0002)
-#define BPC2_PF1P0 (0x0001)
-
-
- /*
- * BPLCON3 -- Bitplane Control Register 3 (AGA)
- */
-
-#define BPC3_BANK2 (0x8000) /* Bits to select color register bank */
-#define BPC3_BANK1 (0x4000)
-#define BPC3_BANK0 (0x2000)
-#define BPC3_PF2OF2 (0x1000) /* Bits for color table offset when PF2 */
-#define BPC3_PF2OF1 (0x0800)
-#define BPC3_PF2OF0 (0x0400)
-#define BPC3_LOCT (0x0200) /* Color register writes go to low bits */
-#define BPC3_SPRES1 (0x0080) /* Sprite resolution bits */
-#define BPC3_SPRES0 (0x0040)
-#define BPC3_BRDRBLNK (0x0020) /* Border blanked? */
-#define BPC3_BRDRTRAN (0x0010) /* Border transparent? */
-#define BPC3_ZDCLKEN (0x0004) /* ZD pin is 14 MHz (HIRES) clock output */
-#define BPC3_BRDRSPRT (0x0002) /* Sprites in border? */
-#define BPC3_EXTBLKEN (0x0001) /* BLANK programmable */
-
-
- /*
- * BPLCON4 -- Bitplane Control Register 4 (AGA)
- */
-
-#define BPC4_BPLAM7 (0x8000) /* bitplane color XOR field */
-#define BPC4_BPLAM6 (0x4000)
-#define BPC4_BPLAM5 (0x2000)
-#define BPC4_BPLAM4 (0x1000)
-#define BPC4_BPLAM3 (0x0800)
-#define BPC4_BPLAM2 (0x0400)
-#define BPC4_BPLAM1 (0x0200)
-#define BPC4_BPLAM0 (0x0100)
-#define BPC4_ESPRM7 (0x0080) /* 4 high bits for even sprite colors */
-#define BPC4_ESPRM6 (0x0040)
-#define BPC4_ESPRM5 (0x0020)
-#define BPC4_ESPRM4 (0x0010)
-#define BPC4_OSPRM7 (0x0008) /* 4 high bits for odd sprite colors */
-#define BPC4_OSPRM6 (0x0004)
-#define BPC4_OSPRM5 (0x0002)
-#define BPC4_OSPRM4 (0x0001)
-
-
- /*
- * BEAMCON0 -- Beam Control Register
- */
-
-#define BMC0_HARDDIS (0x4000) /* Disable hardware limits */
-#define BMC0_LPENDIS (0x2000) /* Disable light pen latch */
-#define BMC0_VARVBEN (0x1000) /* Enable variable vertical blank */
-#define BMC0_LOLDIS (0x0800) /* Disable long/short line toggle */
-#define BMC0_CSCBEN (0x0400) /* Composite sync/blank */
-#define BMC0_VARVSYEN (0x0200) /* Enable variable vertical sync */
-#define BMC0_VARHSYEN (0x0100) /* Enable variable horizontal sync */
-#define BMC0_VARBEAMEN (0x0080) /* Enable variable beam counters */
-#define BMC0_DUAL (0x0080) /* Enable alternate horizontal beam counter */
-#define BMC0_PAL (0x0020) /* Set decodes for PAL */
-#define BMC0_VARCSYEN (0x0010) /* Enable variable composite sync */
-#define BMC0_BLANKEN (0x0008) /* Blank enable (no longer used on AGA) */
-#define BMC0_CSYTRUE (0x0004) /* CSY polarity */
-#define BMC0_VSYTRUE (0x0002) /* VSY polarity */
-#define BMC0_HSYTRUE (0x0001) /* HSY polarity */
-
-
- /*
- * FMODE -- Fetch Mode Control Register (AGA)
- */
-
-#define FMODE_SSCAN2 (0x8000) /* Sprite scan-doubling */
-#define FMODE_BSCAN2 (0x4000) /* Use PF2 modulus every other line */
-#define FMODE_SPAGEM (0x0008) /* Sprite page mode */
-#define FMODE_SPR32 (0x0004) /* Sprite 32 bit fetch */
-#define FMODE_BPAGEM (0x0002) /* Bitplane page mode */
-#define FMODE_BPL32 (0x0001) /* Bitplane 32 bit fetch */
-
-
- /*
- * Tags used to indicate a specific Pixel Clock
- *
- * clk_shift is the shift value to get the timings in 35 ns units
- */
-
-#define TAG_SHRES (1) /* SHRES, clk_shift = TAG_SHRES-1 */
-#define TAG_HIRES (2) /* HIRES, clk_shift = TAG_HIRES-1 */
-#define TAG_LORES (3) /* LORES, clk_shift = TAG_LORES-1 */
-
-
- /*
- * Clock Definitions, Maximum Display Depth
- *
- * These depend on the E-Clock or the Chipset, so they are filled in
- * dynamically
- */
-
-static u_long pixclock[3]; /* SHRES/HIRES/LORES: index = clk_shift */
-static u_short maxdepth[3]; /* SHRES/HIRES/LORES: index = clk_shift */
-
-
- /*
- * Broadcast Video Timings
- *
- * Horizontal values are in 35 ns (SHRES) units
- * Vertical values are in non-interlaced scanlines
- */
-
-#define PAL_WINDOW_H (1472) /* PAL Window Limits */
-#define PAL_WINDOW_V (288)
-#define PAL_DIWSTRT_H (360)
-#define PAL_DIWSTRT_V (24)
-
-#define NTSC_WINDOW_H (1472) /* NTSC Window Limits */
-#define NTSC_WINDOW_V (242)
-#define NTSC_DIWSTRT_H (360)
-#define NTSC_DIWSTRT_V (20)
-
-#define PAL_HTOTAL (1816) /* Total line length */
-#define NTSC_HTOTAL (1816) /* Needed for YWRAP */
-
-
- /*
- * Monitor Specifications
- *
- * These are typical for a `generic' Amiga monitor (e.g. A1960)
- */
+#define BPC0_HIRES (0x8000)
+#define BPC0_BPU2 (0x4000) /* Bit plane used count */
+#define BPC0_BPU1 (0x2000)
+#define BPC0_BPU0 (0x1000)
+#define BPC0_HAM (0x0800) /* HAM mode */
+#define BPC0_DPF (0x0400) /* Double playfield */
+#define BPC0_COLOR (0x0200) /* Enable colorburst */
+#define BPC0_GAUD (0x0100) /* Genlock audio enable */
+#define BPC0_UHRES (0x0080) /* Ultrahi res enable */
+#define BPC0_SHRES (0x0040) /* Super hi res mode */
+#define BPC0_BYPASS (0x0020) /* Bypass LUT - AGA */
+#define BPC0_BPU3 (0x0010) /* AGA */
+#define BPC0_LPEN (0x0008) /* Light pen enable */
+#define BPC0_LACE (0x0004) /* Interlace */
+#define BPC0_ERSY (0x0002) /* External resync */
+#define BPC0_ECSENA (0x0001) /* ECS enable */
-static long vfmin = 50, vfmax = 90, hfmin = 15000, hfmax = 38000;
+ /*
+ * BPLCON2 -- Bitplane Control Register 2
+ */
-static u_short pwrsave = 0; /* VESA suspend mode (not for PAL/NTSC) */
+#define BPC2_ZDBPSEL2 (0x4000) /* Bitplane to be used for ZD - AGA */
+#define BPC2_ZDBPSEL1 (0x2000)
+#define BPC2_ZDBPSEL0 (0x1000)
+#define BPC2_ZDBPEN (0x0800) /* Enable ZD with ZDBPSELx - AGA */
+#define BPC2_ZDCTEN (0x0400) /* Enable ZD with palette bit #31 - AGA */
+#define BPC2_KILLEHB (0x0200) /* Kill EHB mode - AGA */
+#define BPC2_RDRAM (0x0100) /* Color table accesses read, not write - AGA */
+#define BPC2_SOGEN (0x0080) /* SOG output pin high - AGA */
+#define BPC2_PF2PRI (0x0040) /* PF2 priority over PF1 */
+#define BPC2_PF2P2 (0x0020) /* PF2 priority wrt sprites */
+#define BPC2_PF2P1 (0x0010)
+#define BPC2_PF2P0 (0x0008)
+#define BPC2_PF1P2 (0x0004) /* ditto PF1 */
+#define BPC2_PF1P1 (0x0002)
+#define BPC2_PF1P0 (0x0001)
+ /*
+ * BPLCON3 -- Bitplane Control Register 3 (AGA)
+ */
- /*
- * Various macros
- */
+#define BPC3_BANK2 (0x8000) /* Bits to select color register bank */
+#define BPC3_BANK1 (0x4000)
+#define BPC3_BANK0 (0x2000)
+#define BPC3_PF2OF2 (0x1000) /* Bits for color table offset when PF2 */
+#define BPC3_PF2OF1 (0x0800)
+#define BPC3_PF2OF0 (0x0400)
+#define BPC3_LOCT (0x0200) /* Color register writes go to low bits */
+#define BPC3_SPRES1 (0x0080) /* Sprite resolution bits */
+#define BPC3_SPRES0 (0x0040)
+#define BPC3_BRDRBLNK (0x0020) /* Border blanked? */
+#define BPC3_BRDRTRAN (0x0010) /* Border transparent? */
+#define BPC3_ZDCLKEN (0x0004) /* ZD pin is 14 MHz (HIRES) clock output */
+#define BPC3_BRDRSPRT (0x0002) /* Sprites in border? */
+#define BPC3_EXTBLKEN (0x0001) /* BLANK programmable */
-#define up8(x) (((x)+7) & ~7)
-#define down8(x) ((x) & ~7)
-#define div8(x) ((x)>>3)
-#define mod8(x) ((x) & 7)
+ /*
+ * BPLCON4 -- Bitplane Control Register 4 (AGA)
+ */
-#define up16(x) (((x)+15) & ~15)
-#define down16(x) ((x) & ~15)
-#define div16(x) ((x)>>4)
-#define mod16(x) ((x) & 15)
+#define BPC4_BPLAM7 (0x8000) /* bitplane color XOR field */
+#define BPC4_BPLAM6 (0x4000)
+#define BPC4_BPLAM5 (0x2000)
+#define BPC4_BPLAM4 (0x1000)
+#define BPC4_BPLAM3 (0x0800)
+#define BPC4_BPLAM2 (0x0400)
+#define BPC4_BPLAM1 (0x0200)
+#define BPC4_BPLAM0 (0x0100)
+#define BPC4_ESPRM7 (0x0080) /* 4 high bits for even sprite colors */
+#define BPC4_ESPRM6 (0x0040)
+#define BPC4_ESPRM5 (0x0020)
+#define BPC4_ESPRM4 (0x0010)
+#define BPC4_OSPRM7 (0x0008) /* 4 high bits for odd sprite colors */
+#define BPC4_OSPRM6 (0x0004)
+#define BPC4_OSPRM5 (0x0002)
+#define BPC4_OSPRM4 (0x0001)
-#define up32(x) (((x)+31) & ~31)
-#define down32(x) ((x) & ~31)
-#define div32(x) ((x)>>5)
-#define mod32(x) ((x) & 31)
+ /*
+ * BEAMCON0 -- Beam Control Register
+ */
-#define up64(x) (((x)+63) & ~63)
-#define down64(x) ((x) & ~63)
-#define div64(x) ((x)>>6)
-#define mod64(x) ((x) & 63)
+#define BMC0_HARDDIS (0x4000) /* Disable hardware limits */
+#define BMC0_LPENDIS (0x2000) /* Disable light pen latch */
+#define BMC0_VARVBEN (0x1000) /* Enable variable vertical blank */
+#define BMC0_LOLDIS (0x0800) /* Disable long/short line toggle */
+#define BMC0_CSCBEN (0x0400) /* Composite sync/blank */
+#define BMC0_VARVSYEN (0x0200) /* Enable variable vertical sync */
+#define BMC0_VARHSYEN (0x0100) /* Enable variable horizontal sync */
+#define BMC0_VARBEAMEN (0x0080) /* Enable variable beam counters */
+#define BMC0_DUAL (0x0040) /* Enable alternate horizontal beam counter */
+#define BMC0_PAL (0x0020) /* Set decodes for PAL */
+#define BMC0_VARCSYEN (0x0010) /* Enable variable composite sync */
+#define BMC0_BLANKEN (0x0008) /* Blank enable (no longer used on AGA) */
+#define BMC0_CSYTRUE (0x0004) /* CSY polarity */
+#define BMC0_VSYTRUE (0x0002) /* VSY polarity */
+#define BMC0_HSYTRUE (0x0001) /* HSY polarity */
-#define min(a, b) ((a) < (b) ? (a) : (b))
-#define max(a, b) ((a) > (b) ? (a) : (b))
-#define highw(x) ((u_long)(x)>>16 & 0xffff)
-#define loww(x) ((u_long)(x) & 0xffff)
+ /*
+ * FMODE -- Fetch Mode Control Register (AGA)
+ */
-#define arraysize(x) (sizeof(x)/sizeof(*(x)))
+#define FMODE_SSCAN2 (0x8000) /* Sprite scan-doubling */
+#define FMODE_BSCAN2 (0x4000) /* Use PF2 modulus every other line */
+#define FMODE_SPAGEM (0x0008) /* Sprite page mode */
+#define FMODE_SPR32 (0x0004) /* Sprite 32 bit fetch */
+#define FMODE_BPAGEM (0x0002) /* Bitplane page mode */
+#define FMODE_BPL32 (0x0001) /* Bitplane 32 bit fetch */
+ /*
+ * Tags used to indicate a specific Pixel Clock
+ *
+ * clk_shift is the shift value to get the timings in 35 ns units
+ */
- /*
- * Chip RAM we reserve for the Frame Buffer (must be a multiple of 4K!)
- *
- * This defines the Maximum Virtual Screen Size
- */
+enum { TAG_SHRES, TAG_HIRES, TAG_LORES };
-#define VIDEOMEMSIZE_AGA_2M (1310720) /* AGA (2MB) : max 1280*1024*256 */
-#define VIDEOMEMSIZE_AGA_1M (393216) /* AGA (1MB) : max 1024*768*256 */
-#define VIDEOMEMSIZE_ECS_2M (655360) /* ECS (2MB) : max 1280*1024*16 */
-#define VIDEOMEMSIZE_ECS_1M (393216) /* ECS (1MB) : max 1024*768*16 */
-#define VIDEOMEMSIZE_OCS (262144) /* OCS : max ca. 800*600*16 */
+ /*
+ * Tags used to indicate the specific chipset
+ */
+enum { TAG_OCS, TAG_ECS, TAG_AGA };
-static u_long videomemory;
-static u_long videomemorysize;
+ /*
+ * Tags used to indicate the memory bandwidth
+ */
-#define assignchunk(name, type, ptr, size) \
-{ \
- (name) = (type)(ptr); \
- ptr += size; \
-}
+enum { TAG_FMODE_1, TAG_FMODE_2, TAG_FMODE_4 };
- /*
- * Copper Instructions
- */
+ /*
+ * Clock Definitions, Maximum Display Depth
+ *
+ * These depend on the E-Clock or the Chipset, so they are filled in
+ * dynamically
+ */
-#define CMOVE(val, reg) (CUSTOM_OFS(reg)<<16 | (val))
-#define CMOVE2(val, reg) ((CUSTOM_OFS(reg)+2)<<16 | (val))
-#define CWAIT(x, y) (((y) & 0xff)<<24 | ((x) & 0xfe)<<16 | 0x0001fffe)
-#define CEND (0xfffffffe)
+static u_long pixclock[3]; /* SHRES/HIRES/LORES: index = clk_shift */
+static u_short maxdepth[3]; /* SHRES/HIRES/LORES: index = clk_shift */
+static u_short maxfmode, chipset;
-typedef union {
- u_long l;
- u_short w[2];
-} copins;
+ /*
+ * Broadcast Video Timings
+ *
+ * Horizontal values are in 35 ns (SHRES) units
+ * Vertical values are in interlaced scanlines
+ */
+#define PAL_DIWSTRT_H (360) /* PAL Window Limits */
+#define PAL_DIWSTRT_V (48)
+#define PAL_HTOTAL (1816)
+#define PAL_VTOTAL (625)
+
+#define NTSC_DIWSTRT_H (360) /* NTSC Window Limits */
+#define NTSC_DIWSTRT_V (40)
+#define NTSC_HTOTAL (1816)
+#define NTSC_VTOTAL (525)
- /*
- * Frame Header Copper List
- */
-
-struct clist_hdr {
- copins bplcon0;
- copins diwstrt;
- copins diwstop;
- copins diwhigh;
- copins sprfix[8];
- copins sprstrtup[16];
- copins wait;
- copins jump;
- copins wait_forever;
-};
+ /*
+ * Monitor Specifications
+ *
+ * These are typical for a `generic' Amiga monitor (e.g. A1960)
+ */
- /*
- * Long Frame/Short Frame Copper List
- */
-
-struct clist_dyn {
- copins diwstrt;
- copins diwstop;
- copins diwhigh;
- copins bplcon0;
- copins sprpt[2]; /* Sprite 0 */
- copins rest[64];
-};
+static long vfmin = 50, vfmax = 90, hfmin = 15000, hfmax = 38000;
-static struct clist_hdr *clist_hdr;
-static struct clist_dyn *clist_lof;
-static struct clist_dyn *clist_shf; /* Only used for Interlace */
+ /*
+ * Various macros
+ */
+#define up2(v) (((v)+1) & -2)
+#define down2(v) ((v) & -2)
+#define div2(v) ((v)>>1)
+#define mod2(v) ((v) & 1)
+
+#define up4(v) (((v)+3) & -4)
+#define down4(v) ((v) & -4)
+#define mul4(v) ((v)<<2)
+#define div4(v) ((v)>>2)
+#define mod4(v) ((v) & 3)
+
+#define up8(v) (((v)+7) & -8)
+#define down8(v) ((v) & -8)
+#define div8(v) ((v)>>3)
+#define mod8(v) ((v) & 7)
+
+#define up16(v) (((v)+15) & -16)
+#define down16(v) ((v) & -16)
+#define div16(v) ((v)>>4)
+#define mod16(v) ((v) & 15)
+
+#define up32(v) (((v)+31) & -32)
+#define down32(v) ((v) & -32)
+#define div32(v) ((v)>>5)
+#define mod32(v) ((v) & 31)
+
+#define up64(v) (((v)+63) & -64)
+#define down64(v) ((v) & -64)
+#define div64(v) ((v)>>6)
+#define mod64(v) ((v) & 63)
+
+#define upx(x,v) (((v)+(x)-1) & -(x))
+#define downx(x,v) ((v) & -(x))
+#define modx(x,v) ((v) & ((x)-1))
+
+/* if x1 is not a constant, this macro won't make real sense :-) */
+#define DIVUL(x1, x2) ({int res; asm("divul %1,%2,%3": "=d" (res): \
+ "d" (x2), "d" ((long)((x1)/0x100000000ULL)), "0" ((long)(x1))); res;})
+
+#define min(a, b) ((a) < (b) ? (a) : (b))
+#define max(a, b) ((a) > (b) ? (a) : (b))
- /*
- * Hardware Cursor
- */
+#define highw(x) ((u_long)(x)>>16 & 0xffff)
+#define loww(x) ((u_long)(x) & 0xffff)
-#define CRSR_RATE (20) /* Number of frames/flash toggle */
+#define arraysize(x) (sizeof(x)/sizeof(*(x)))
-static u_long *lofsprite, *shfsprite, *dummysprite;
-static u_short cursormode = FB_CURSOR_FLASH;
+#define VBlankOn() custom.intena = IF_SETCLR|IF_COPER
+#define VBlankOff() custom.intena = IF_COPER
- /*
- * Current Video Mode
- */
+ /*
+ * Chip RAM we reserve for the Frame Buffer
+ *
+ * This defines the Maximum Virtual Screen Size
+ * (Setable per kernel options?)
+ */
-struct amiga_fb_par {
+#define VIDEOMEMSIZE_AGA_2M (1310720) /* AGA (2MB) : max 1280*1024*256 */
+#define VIDEOMEMSIZE_AGA_1M (786432) /* AGA (1MB) : max 1024*768*256 */
+#define VIDEOMEMSIZE_ECS_2M (655360) /* ECS (2MB) : max 1280*1024*16 */
+#define VIDEOMEMSIZE_ECS_1M (393216) /* ECS (1MB) : max 1024*768*16 */
+#define VIDEOMEMSIZE_OCS (262144) /* OCS : max ca. 800*600*16 */
- /* General Values */
+#define SPRITEMEMSIZE (64*64/4) /* max 64*64*4 */
+#define DUMMYSPRITEMEMSIZE (8)
- int xres; /* vmode */
- int yres; /* vmode */
- int vxres; /* vmode */
- int vyres; /* vmode */
- int xoffset; /* vmode */
- int yoffset; /* vmode */
- u_short bpp; /* vmode */
- u_short clk_shift; /* vmode */
- int vmode; /* vmode */
- u_short diwstrt_h; /* vmode */
- u_short diwstrt_v; /* vmode */
- u_long next_line; /* modulo for next line */
- u_long next_plane; /* modulo for next plane */
- short crsr_x; /* movecursor */
- short crsr_y; /* movecursor */
-
- /* OCS Hardware Registers */
-
- u_long bplpt0; /* vmode, pan (Note: physical address) */
- u_short bplcon0; /* vmode */
- u_short bplcon1; /* vmode, pan */
- u_short bpl1mod; /* vmode, pan */
- u_short bpl2mod; /* vmode, pan */
- u_short diwstrt; /* vmode */
- u_short diwstop; /* vmode */
- u_short ddfstrt; /* vmode, pan */
- u_short ddfstop; /* vmode, pan */
-
-#if defined(CONFIG_AMIFB_ECS) || defined(CONFIG_AMIFB_AGA)
- /* Additional ECS Hardware Registers */
-
- u_short diwhigh; /* vmode */
- u_short bplcon3; /* vmode */
- u_short beamcon0; /* vmode */
- u_short htotal; /* vmode */
- u_short hsstrt; /* vmode */
- u_short hsstop; /* vmode */
- u_short vtotal; /* vmode */
- u_short vsstrt; /* vmode */
- u_short vsstop; /* vmode */
- u_short hcenter; /* vmode */
-#endif /* defined(CONFIG_AMIFB_ECS) || defined(CONFIG_AMIFB_AGA) */
+static u_long videomemory, spritememory;
+static u_long videomemorysize;
-#if defined(CONFIG_AMIFB_AGA)
- /* Additional AGA Hardware Registers */
+ /*
+ * This is the earliest allowed start of fetching display data.
+ * Only if you really want no hardware cursor and audio,
+ * set this to 128, but let it better at 192
+ */
- u_short fmode; /* vmode */
-#endif /* defined(CONFIG_AMIFB_AGA) */
-};
+static u_long min_fstrt = 192;
-static struct amiga_fb_par current_par;
+#define assignchunk(name, type, ptr, size) \
+{ \
+ (name) = (type)(ptr); \
+ ptr += size; \
+}
-static int current_par_valid = 0;
-static int currcon = 0;
-static struct display disp[MAX_NR_CONSOLES];
-static struct fb_info fb_info;
+ /*
+ * Copper Instructions
+ */
-static int node; /* node of the /dev/fb?current file */
+#define CMOVE(val, reg) (CUSTOM_OFS(reg)<<16 | (val))
+#define CMOVE2(val, reg) ((CUSTOM_OFS(reg)+2)<<16 | (val))
+#define CWAIT(x, y) (((y) & 0x1fe)<<23 | ((x) & 0x7f0)<<13 | 0x0001fffe)
+#define CEND (0xfffffffe)
- /*
- * The minimum period for audio depends on htotal (for OCS/ECS/AGA)
- * (Imported from arch/m68k/amiga/amisound.c)
- */
+typedef union {
+ u_long l;
+ u_short w[2];
+} copins;
-extern volatile u_short amiga_audio_min_period;
+struct copdisplay {
+ copins *init;
+ copins *wait;
+ copins *list[2][2];
+ copins *rebuild[2];
+} copdisplay;
+static u_short currentcop = 0;
- /*
- * Since we can't read the palette on OCS/ECS, and since reading one
- * single color palette entry requires 5 expensive custom chip bus
- * accesses on AGA, we keep a copy of the current palette.
- */
+ /*
+ * Hardware Cursor
+ */
-#ifdef CONFIG_AMIFB_AGA
-static struct { u_char red, green, blue, pad; } palette[256];
-#else /* CONFIG_AMIFB_AGA */
-static struct { u_char red, green, blue, pad; } palette[32];
-#endif /* CONFIG_AMIFB_AGA */
+static int cursorrate = 20; /* Number of frames/flash toggle */
+static u_short cursorstate = -1;
+static u_short cursormode = FB_CURSOR_OFF;
+static u_short *lofsprite, *shfsprite, *dummysprite;
- /*
- * Latches and Flags for display changes during VBlank
- */
-
-static volatile u_short do_vmode = 0; /* Change the Video Mode */
-static volatile short do_blank = 0; /* (Un)Blank the Screen (±1) */
-static volatile u_short do_movecursor = 0; /* Move the Cursor */
-static volatile u_short full_vmode_change = 1; /* Full Change or Only Pan */
-static volatile u_short is_blanked = 0; /* Screen is Blanked */
-
-
- /*
- * Switch for Chipset Independency
- */
-
-static struct fb_hwswitch {
-
- /* Initialization */
- int (*init)(void);
-
- /* Display Control */
- int (*encode_fix)(struct fb_fix_screeninfo *fix, struct amiga_fb_par *par);
- int (*decode_var)(struct fb_var_screeninfo *var, struct amiga_fb_par *par);
- int (*encode_var)(struct fb_var_screeninfo *var, struct amiga_fb_par *par);
- int (*getcolreg)(u_int regno, u_int *red, u_int *green, u_int *blue,
- u_int *transp);
- int (*setcolreg)(u_int regno, u_int red, u_int green, u_int blue,
- u_int transp);
- int (*pan_display)(struct fb_var_screeninfo *var, struct amiga_fb_par *par);
-
- /* Routines Called by VBlank Interrupt to minimize flicker */
- void (*do_vmode)(void);
- void (*do_blank)(int blank);
- void (*do_movecursor)(void);
- void (*do_flashcursor)(void);
-} *fbhw;
-
-
- /*
- * Frame Buffer Name
- *
- * The rest of the name is filled in by amiga_fb_init
- */
+ /*
+ * Current Video Mode
+ */
-static char amiga_fb_name[16] = "Amiga ";
+struct amiga_fb_par {
+ /* General Values */
- /*
- * Predefined Video Mode Names
- *
- * The a2024-?? modes don't work yet because there's no A2024 driver.
- */
+ int xres; /* vmode */
+ int yres; /* vmode */
+ int vxres; /* vmode */
+ int vyres; /* vmode */
+ int xoffset; /* vmode */
+ int yoffset; /* vmode */
+ u_short bpp; /* vmode */
+ u_short clk_shift; /* vmode */
+ u_short line_shift; /* vmode */
+ int vmode; /* vmode */
+ u_short diwstrt_h; /* vmode */
+ u_short diwstop_h; /* vmode */
+ u_short diwstrt_v; /* vmode */
+ u_short diwstop_v; /* vmode */
+ u_long next_line; /* modulo for next line */
+ u_long next_plane; /* modulo for next plane */
+
+ /* Cursor Values */
+
+ struct {
+ short crsr_x; /* movecursor */
+ short crsr_y; /* movecursor */
+ short spot_x;
+ short spot_y;
+ u_short height;
+ u_short width;
+ u_short fmode;
+ } crsr;
+
+ /* OCS Hardware Registers */
+
+ u_long bplpt0; /* vmode, pan (Note: physical address) */
+ u_long bplpt0wrap; /* vmode, pan (Note: physical address) */
+ u_short ddfstrt;
+ u_short ddfstop;
+ u_short bpl1mod;
+ u_short bpl2mod;
+ u_short bplcon0; /* vmode */
+ u_short bplcon1; /* vmode */
+ u_short htotal; /* vmode */
+ u_short vtotal; /* vmode */
+
+ /* Additional ECS Hardware Registers */
+
+ u_short bplcon3; /* vmode */
+ u_short beamcon0; /* vmode */
+ u_short hsstrt; /* vmode */
+ u_short hsstop; /* vmode */
+ u_short hbstrt; /* vmode */
+ u_short hbstop; /* vmode */
+ u_short vsstrt; /* vmode */
+ u_short vsstop; /* vmode */
+ u_short vbstrt; /* vmode */
+ u_short vbstop; /* vmode */
+ u_short hcenter; /* vmode */
-static char *amiga_fb_modenames[] = {
+ /* Additional AGA Hardware Registers */
- /*
- * Autodetect (Default) Video Mode
- */
-
- "default",
-
- /*
- * AmigaOS Video Modes
- */
-
- "ntsc", /* 640x200, 15 kHz, 60 Hz (NTSC) */
- "ntsc-lace", /* 640x400, 15 kHz, 60 Hz interlaced (NTSC) */
- "pal", /* 640x256, 15 kHz, 50 Hz (PAL) */
- "pal-lace", /* 640x512, 15 kHz, 50 Hz interlaced (PAL) */
- "multiscan", /* 640x480, 29 kHz, 57 Hz */
- "multiscan-lace", /* 640x960, 29 kHz, 57 Hz interlaced */
- "a2024-10", /* 1024x800, 10 Hz (Not yet supported) */
- "a2024-15", /* 1024x800, 15 Hz (Not yet supported) */
- "euro36", /* 640x200, 15 kHz, 72 Hz */
- "euro36-lace", /* 640x400, 15 kHz, 72 Hz interlaced */
- "euro72", /* 640x400, 29 kHz, 68 Hz */
- "euro72-lace", /* 640x800, 29 kHz, 68 Hz interlaced */
- "super72", /* 800x300, 23 kHz, 70 Hz */
- "super72-lace", /* 800x600, 23 kHz, 70 Hz interlaced */
- "dblntsc", /* 640x200, 27 kHz, 57 Hz doublescan */
- "dblntsc-ff", /* 640x400, 27 kHz, 57 Hz */
- "dblntsc-lace", /* 640x800, 27 kHz, 57 Hz interlaced */
- "dblpal", /* 640x256, 27 kHz, 47 Hz doublescan */
- "dblpal-ff", /* 640x512, 27 kHz, 47 Hz */
- "dblpal-lace", /* 640x1024, 27 kHz, 47 Hz interlaced */
-
- /*
- * VGA Video Modes
- */
-
- "vga", /* 640x480, 31 kHz, 60 Hz (VGA) */
- "vga70", /* 640x400, 31 kHz, 70 Hz (VGA) */
-
- /*
- * User Defined Video Modes: to be set after boot up using e.g. fbset
- */
+ u_short fmode; /* vmode */
+} currentpar;
- "user0", "user1", "user2", "user3", "user4", "user5", "user6", "user7"
-};
+static int currcon = 0;
+static struct display disp[MAX_NR_CONSOLES];
+static struct fb_info fb_info;
- /*
- * Predefined Video Mode Definitions
- *
- * Since the actual pixclock values depend on the E-Clock, we use the
- * TAG_* values and fill in the real values during initialization.
- * Thus we assume no one has pixel clocks of 333, 500 or 1000 GHz :-)
- */
-
-static struct fb_var_screeninfo amiga_fb_predefined[] = {
-
- /*
- * Autodetect (Default) Video Mode
- */
-
- { 0, },
-
- /*
- * AmigaOS Video Modes
- */
-
- {
- /* ntsc */
- 640, 200, 640, 200, 0, 0, 4, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, FB_ACCEL_NONE, TAG_HIRES, 78, 18, 24, 18, 0, 0,
- FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
- }, {
- /* ntsc-lace */
- 640, 400, 640, 400, 0, 0, 4, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, FB_ACCEL_NONE, TAG_HIRES, 78, 18, 48, 36, 0, 0,
- FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
- }, {
- /* pal */
- 640, 256, 640, 256, 0, 0, 4, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, FB_ACCEL_NONE, TAG_HIRES, 78, 18, 20, 12, 0, 0,
- FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
- }, {
- /* pal-lace */
- 640, 512, 640, 512, 0, 0, 4, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, FB_ACCEL_NONE, TAG_HIRES, 78, 18, 40, 24, 0, 0,
- FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
- }, {
- /* multiscan */
- 640, 480, 640, 480, 0, 0, 4, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 164, 92, 9, 9, 80, 8,
- 0, FB_VMODE_NONINTERLACED
- }, {
- /* multiscan-lace */
- 640, 960, 640, 960, 0, 0, 4, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 164, 92, 18, 18, 80, 16,
- 0, FB_VMODE_INTERLACED
- }, {
- /* a2024-10 (Not yet supported) */
- 1024, 800, 1024, 800, 0, 0, 2, 0,
- {0, 2, 0}, {0, 2, 0}, {0, 2, 0}, {0, 0, 0},
- 0, 0, -1, -1, FB_ACCEL_NONE, TAG_HIRES, 0, 0, 0, 0, 0, 0,
- 0, FB_VMODE_NONINTERLACED
- }, {
- /* a2024-15 (Not yet supported) */
- 1024, 800, 1024, 800, 0, 0, 2, 0,
- {0, 2, 0}, {0, 2, 0}, {0, 2, 0}, {0, 0, 0},
- 0, 0, -1, -1, FB_ACCEL_NONE, TAG_HIRES, 0, 0, 0, 0, 0, 0,
- 0, FB_VMODE_NONINTERLACED
- }, {
- /* euro36 */
- 640, 200, 640, 200, 0, 0, 4, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, FB_ACCEL_NONE, TAG_HIRES, 92, 124, 6, 6, 52, 5,
- 0, FB_VMODE_NONINTERLACED
- }, {
- /* euro36-lace */
- 640, 400, 640, 400, 0, 0, 4, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, FB_ACCEL_NONE, TAG_HIRES, 92, 124, 12, 12, 52, 10,
- 0, FB_VMODE_INTERLACED
- }, {
- /* euro72 */
- 640, 400, 640, 400, 0, 0, 4, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 164, 92, 9, 9, 80, 8,
- 0, FB_VMODE_NONINTERLACED
- }, {
- /* euro72-lace */
- 640, 800, 640, 800, 0, 0, 4, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 164, 92, 18, 18, 80, 16,
- 0, FB_VMODE_INTERLACED
- }, {
- /* super72 */
- 800, 300, 800, 300, 0, 0, 4, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 212, 140, 10, 11, 80, 7,
- 0, FB_VMODE_NONINTERLACED
- }, {
- /* super72-lace */
- 800, 600, 800, 600, 0, 0, 4, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 212, 140, 20, 22, 80, 14,
- 0, FB_VMODE_INTERLACED
- }, {
- /* dblntsc */
- 640, 200, 640, 200, 0, 0, 4, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 196, 124, 18, 17, 80, 4,
- 0, FB_VMODE_DOUBLE
- }, {
- /* dblntsc-ff */
- 640, 400, 640, 400, 0, 0, 4, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 196, 124, 36, 35, 80, 7,
- 0, FB_VMODE_NONINTERLACED
- }, {
- /* dblntsc-lace */
- 640, 800, 640, 800, 0, 0, 4, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 196, 124, 72, 70, 80, 14,
- 0, FB_VMODE_INTERLACED
- }, {
- /* dblpal */
- 640, 256, 640, 256, 0, 0, 4, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 196, 124, 14, 13, 80, 4,
- 0, FB_VMODE_DOUBLE
- }, {
- /* dblpal-ff */
- 640, 512, 640, 512, 0, 0, 4, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 196, 124, 28, 27, 80, 7,
- 0, FB_VMODE_NONINTERLACED
- }, {
- /* dblpal-lace */
- 640, 1024, 640, 1024, 0, 0, 4, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 196, 124, 56, 54, 80, 14,
- 0, FB_VMODE_INTERLACED
- },
-
- /*
- * VGA Video Modes
- */
-
- {
- /* vga */
- 640, 480, 640, 480, 0, 0, 4, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 64, 96, 30, 9, 112, 2,
- 0, FB_VMODE_NONINTERLACED
- }, {
- /* vga70 */
- 640, 400, 640, 400, 0, 0, 4, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 64, 96, 35, 12, 112, 2,
- FB_SYNC_VERT_HIGH_ACT | FB_SYNC_COMP_HIGH_ACT, FB_VMODE_NONINTERLACED
- },
-
- /*
- * User Defined Video Modes
- */
+static int node; /* node of the /dev/fb?current file */
- { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, }
-};
+ /*
+ * The minimum period for audio depends on htotal (for OCS/ECS/AGA)
+ * (Imported from arch/m68k/amiga/amisound.c)
+ */
+extern volatile u_short amiga_audio_min_period;
-#define NUM_USER_MODES (8)
-#define NUM_TOTAL_MODES arraysize(amiga_fb_predefined)
-#define NUM_PREDEF_MODES (NUM_TOTAL_MODES-NUM_USER_MODES)
+ /*
+ * Since we can't read the palette on OCS/ECS, and since reading one
+ * single color palette entry require 5 expensive custom chip bus accesses
+ * on AGA, we keep a copy of the current palette.
+ */
+#if defined(CONFIG_AMIFB_AGA)
+static struct { u_char red, green, blue, pad; } palette[256];
+#else
+static struct { u_char red, green, blue, pad; } palette[32];
+#endif
-static int amifb_ilbm = 0; /* interleaved or normal bitplanes */
+#if defined(CONFIG_AMIFB_ECS)
+static u_short ecs_palette[32];
+#endif
-static int amifb_inverse = 0;
-static int amifb_mode = 0;
+ /*
+ * Latches for Display Changes during VBlank
+ */
+static u_short do_vmode_full = 0; /* Change the Video Mode */
+static u_short do_vmode_pan = 0; /* Update the Video Mode */
+static short do_blank = 0; /* (Un)Blank the Screen (±1) */
+static u_short do_cursor = 0; /* Move the Cursor */
- /*
- * Support for Graphics Boards
- */
-#ifdef CONFIG_FB_CYBER /* Cybervision */
-extern int Cyber_probe(void);
-extern void Cyber_video_setup(char *options, int *ints);
-extern struct fb_info *Cyber_fb_init(long *mem_start);
+ /*
+ * Various Flags
+ */
-static int amifb_Cyber = 0;
-#endif /* CONFIG_FB_CYBER */
+static u_short is_blanked = 0; /* Screen is Blanked */
+static u_short is_lace = 0; /* Screen is laced */
+ /*
+ * Frame Buffer Name
+ *
+ * The rest of the name is filled in during initialization
+ */
- /*
- * Some default modes
- */
-
-#define DEFMODE_PAL "pal" /* for PAL OCS/ECS */
-#define DEFMODE_NTSC "ntsc" /* for NTSC OCS/ECS */
-#define DEFMODE_AMBER_PAL "pal-lace" /* for flicker fixed PAL (A3000) */
-#define DEFMODE_AMBER_NTSC "ntsc-lace" /* for flicker fixed NTSC (A3000) */
-#define DEFMODE_AGA "vga70" /* for AGA */
+static char amiga_fb_name[16] = "Amiga ";
+ /*
+ * Predefined Video Mode Names
+ *
+ * The a2024-?? modes don't work yet because there's no A2024 driver.
+ */
- /*
- * Interface used by the world
- */
+static char *amiga_fb_modenames[] = {
-void amiga_video_setup(char *options, int *ints);
+ /*
+ * Autodetect (Default) Video Mode
+ */
-static int amiga_fb_get_fix(struct fb_fix_screeninfo *fix, int con);
-static int amiga_fb_get_var(struct fb_var_screeninfo *var, int con);
-static int amiga_fb_set_var(struct fb_var_screeninfo *var, int con);
-static int amiga_fb_get_cmap(struct fb_cmap *cmap, int kspc, int con);
-static int amiga_fb_set_cmap(struct fb_cmap *cmap, int kspc, int con);
-static int amiga_fb_pan_display(struct fb_var_screeninfo *var, int con);
+ "default",
-static int amiga_fb_ioctl(struct inode *inode, struct file *file, u_int cmd,
- u_long arg, int con);
+ /*
+ * AmigaOS Video Modes
+ */
-static int amiga_fb_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix, int con);
-static int amiga_fb_get_var_cursorinfo(struct fb_var_cursorinfo *var, int con);
-static int amiga_fb_set_var_cursorinfo(struct fb_var_cursorinfo *var, int con);
-static int amiga_fb_get_cursorstate(struct fb_cursorstate *state, int con);
-static int amiga_fb_set_cursorstate(struct fb_cursorstate *state, int con);
+ "ntsc", /* 640x200, 15 kHz, 60 Hz (NTSC) */
+ "ntsc-lace", /* 640x400, 15 kHz, 60 Hz interlaced (NTSC) */
+ "pal", /* 640x256, 15 kHz, 50 Hz (PAL) */
+ "pal-lace", /* 640x512, 15 kHz, 50 Hz interlaced (PAL) */
+ "multiscan", /* 640x480, 29 kHz, 57 Hz */
+ "multiscan-lace", /* 640x960, 29 kHz, 57 Hz interlaced */
+ "a2024-10", /* 1024x800, 10 Hz (Not yet supported) */
+ "a2024-15", /* 1024x800, 15 Hz (Not yet supported) */
+ "euro36", /* 640x200, 15 kHz, 72 Hz */
+ "euro36-lace", /* 640x400, 15 kHz, 72 Hz interlaced */
+ "euro72", /* 640x400, 29 kHz, 68 Hz */
+ "euro72-lace", /* 640x800, 29 kHz, 68 Hz interlaced */
+ "super72", /* 800x300, 23 kHz, 70 Hz */
+ "super72-lace", /* 800x600, 23 kHz, 70 Hz interlaced */
+ "dblntsc", /* 640x200, 27 kHz, 57 Hz doublescan */
+ "dblntsc-ff", /* 640x400, 27 kHz, 57 Hz */
+ "dblntsc-lace", /* 640x800, 27 kHz, 57 Hz interlaced */
+ "dblpal", /* 640x256, 27 kHz, 47 Hz doublescan */
+ "dblpal-ff", /* 640x512, 27 kHz, 47 Hz */
+ "dblpal-lace", /* 640x1024, 27 kHz, 47 Hz interlaced */
+ /*
+ * VGA Video Modes
+ */
- /*
- * Interface to the low level console driver
- */
+ "vga", /* 640x480, 31 kHz, 60 Hz (VGA) */
+ "vga70", /* 640x400, 31 kHz, 70 Hz (VGA) */
-struct fb_info *amiga_fb_init(long *mem_start);
-static int amifb_switch(int con);
-static int amifb_updatevar(int con);
-static void amifb_blank(int blank);
+ /*
+ * User Defined Video Modes: to be set after boot up using e.g. fbset
+ */
+ "user0", "user1", "user2", "user3", "user4", "user5", "user6", "user7"
+};
- /*
- * Support for OCS
- */
+struct fb_var_screeninfo amiga_fb_predefined[] = {
-#ifdef CONFIG_AMIFB_OCS
-#error "OCS support: not yet implemented"
-#endif /* CONFIG_AMIFB_OCS */
+ /*
+ * Autodetect (Default) Video Mode
+ */
+ { 0, },
- /*
- * Support for ECS
- */
+ /*
+ * AmigaOS Video Modes
+ */
-#ifdef CONFIG_AMIFB_ECS
-#error "ECS support: not yet implemented"
-#endif /* CONFIG_AMIFB_ECS */
+ {
+ /* ntsc */
+ 640, 200, 640, 200, 0, 0, 4, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, TAG_HIRES, 106, 86, 44, 16, 76, 2,
+ FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* ntsc-lace */
+ 640, 400, 640, 400, 0, 0, 4, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, TAG_HIRES, 106, 86, 88, 33, 76, 4,
+ FB_SYNC_BROADCAST, FB_VMODE_INTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* pal */
+ 640, 256, 640, 256, 0, 0, 4, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, TAG_HIRES, 106, 86, 40, 14, 76, 2,
+ FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* pal-lace */
+ 640, 512, 640, 512, 0, 0, 4, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, TAG_HIRES, 106, 86, 80, 29, 76, 4,
+ FB_SYNC_BROADCAST, FB_VMODE_INTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* multiscan */
+ 640, 480, 640, 480, 0, 0, 4, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 96, 112, 29, 8, 72, 8,
+ 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* multiscan-lace */
+ 640, 960, 640, 960, 0, 0, 4, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 96, 112, 58, 16, 72, 16,
+ 0, FB_VMODE_INTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* a2024-10 (Not yet supported) */
+ 1024, 800, 1024, 800, 0, 0, 2, 0,
+ {0, 2, 0}, {0, 2, 0}, {0, 2, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, TAG_HIRES, 0, 0, 0, 0, 0, 0,
+ 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* a2024-15 (Not yet supported) */
+ 1024, 800, 1024, 800, 0, 0, 2, 0,
+ {0, 2, 0}, {0, 2, 0}, {0, 2, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, TAG_HIRES, 0, 0, 0, 0, 0, 0,
+ 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* euro36 */
+ 640, 200, 640, 200, 0, 0, 4, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, TAG_HIRES, 92, 124, 6, 6, 52, 5,
+ 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* euro36-lace */
+ 640, 400, 640, 400, 0, 0, 4, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, TAG_HIRES, 92, 124, 12, 12, 52, 10,
+ 0, FB_VMODE_INTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* euro72 */
+ 640, 400, 640, 400, 0, 0, 4, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 164, 92, 9, 9, 80, 8,
+ 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* euro72-lace */
+ 640, 800, 640, 800, 0, 0, 4, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 164, 92, 18, 18, 80, 16,
+ 0, FB_VMODE_INTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* super72 */
+ 800, 300, 800, 300, 0, 0, 4, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 212, 140, 10, 11, 80, 7,
+ 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* super72-lace */
+ 800, 600, 800, 600, 0, 0, 4, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 212, 140, 20, 22, 80, 14,
+ 0, FB_VMODE_INTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* dblntsc */
+ 640, 200, 640, 200, 0, 0, 4, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 196, 124, 18, 17, 80, 4,
+ 0, FB_VMODE_DOUBLE | FB_VMODE_YWRAP
+ }, {
+ /* dblntsc-ff */
+ 640, 400, 640, 400, 0, 0, 4, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 196, 124, 36, 35, 80, 7,
+ 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* dblntsc-lace */
+ 640, 800, 640, 800, 0, 0, 4, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 196, 124, 72, 70, 80, 14,
+ 0, FB_VMODE_INTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* dblpal */
+ 640, 256, 640, 256, 0, 0, 4, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 196, 124, 14, 13, 80, 4,
+ 0, FB_VMODE_DOUBLE | FB_VMODE_YWRAP
+ }, {
+ /* dblpal-ff */
+ 640, 512, 640, 512, 0, 0, 4, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 196, 124, 28, 27, 80, 7,
+ 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* dblpal-lace */
+ 640, 1024, 640, 1024, 0, 0, 4, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 196, 124, 56, 54, 80, 14,
+ 0, FB_VMODE_INTERLACED | FB_VMODE_YWRAP
+ },
- /*
- * Support for AGA
- */
+ /*
+ * VGA Video Modes
+ */
-#ifdef CONFIG_AMIFB_AGA
-static int aga_init(void);
-static int aga_encode_fix(struct fb_fix_screeninfo *fix,
- struct amiga_fb_par *par);
-static int aga_decode_var(struct fb_var_screeninfo *var,
- struct amiga_fb_par *par);
-static int aga_encode_var(struct fb_var_screeninfo *var,
- struct amiga_fb_par *par);
-static int aga_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
- u_int *transp);
-static int aga_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
- u_int transp);
-static int aga_pan_display(struct fb_var_screeninfo *var,
- struct amiga_fb_par *par);
-static void aga_do_vmode(void);
-static void aga_do_blank(int blank);
-static void aga_do_movecursor(void);
-static void aga_do_flashcursor(void);
-
-static int aga_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix, int con);
-static int aga_get_var_cursorinfo(struct fb_var_cursorinfo *var, int con);
-static int aga_set_var_cursorinfo(struct fb_var_cursorinfo *var, int con);
-static int aga_get_cursorstate(struct fb_cursorstate *state, int con);
-static int aga_set_cursorstate(struct fb_cursorstate *state, int con);
-
-static __inline__ void aga_build_clist_hdr(struct clist_hdr *cop);
-static __inline__ void aga_update_clist_hdr(struct clist_hdr *cop,
- struct amiga_fb_par *par);
-static void aga_build_clist_dyn(struct clist_dyn *cop,
- struct clist_dyn *othercop, u_short shf,
- struct amiga_fb_par *par);
-#endif /* CONFIG_AMIFB_AGA */
+ {
+ /* vga */
+ 640, 480, 640, 480, 0, 0, 4, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 64, 96, 30, 9, 112, 2,
+ 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* vga70 */
+ 640, 400, 640, 400, 0, 0, 4, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, TAG_SHRES, 64, 96, 35, 12, 112, 2,
+ FB_SYNC_VERT_HIGH_ACT | FB_SYNC_COMP_HIGH_ACT, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
+ },
+ /*
+ * User Defined Video Modes
+ */
- /*
- * Internal routines
- */
+ { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, }, { 0, }
+};
-static u_long chipalloc(u_long size);
-static void amiga_fb_get_par(struct amiga_fb_par *par);
-static void amiga_fb_set_par(struct amiga_fb_par *par);
-static int do_fb_set_var(struct fb_var_screeninfo *var, int isactive);
-static struct fb_cmap *get_default_colormap(int bpp);
-static int do_fb_get_cmap(struct fb_cmap *cmap, struct fb_var_screeninfo *var,
- int kspc);
-static int do_fb_set_cmap(struct fb_cmap *cmap, struct fb_var_screeninfo *var,
- int kspc);
-static void do_install_cmap(int con);
-static void memcpy_fs(int fsfromto, void *to, void *from, int len);
-static void copy_cmap(struct fb_cmap *from, struct fb_cmap *to, int fsfromto);
-static int alloc_cmap(struct fb_cmap *cmap, int len, int transp);
-static void amiga_fb_set_disp(int con);
-static void amifb_interrupt(int irq, struct pt_regs *fp, void *dummy);
-static char * strtoke(char * s,const char * ct);
-static int get_video_mode(const char *name);
-static void check_default_mode(void);
+#define NUM_USER_MODES (8)
+#define NUM_TOTAL_MODES arraysize(amiga_fb_predefined)
+#define NUM_PREDEF_MODES (NUM_TOTAL_MODES-NUM_USER_MODES)
+static int amifb_ilbm = 0; /* interleaved or normal bitplanes */
-#ifdef USE_MONO_AMIFB_IF_NON_AGA
+static int amifb_inverse = 0;
+static int amifb_usermode = 0;
-/******************************************************************************
-*
-* This is the old monochrome frame buffer device. It's invoked if we're running
-* on a non-AGA machine, until the color support for OCS/ECS is finished.
-*
-******************************************************************************/
-
-/*
- * atari/atafb.c -- Low level implementation of Atari frame buffer device
- * amiga/amifb.c -- Low level implementation of Amiga frame buffer device
- *
- * Copyright (C) 1994 Martin Schaller & Roman Hodek & Geert Uytterhoeven
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file COPYING in the main directory of this archive
- * for more details.
- *
- * History:
- * - 03 Jan 95: Original version my Martin Schaller: The TT driver and
- * all the device independent stuff
- * - 09 Jan 95: Roman: I've added the hardware abstraction (hw_switch)
- * and wrote the Falcon, ST(E), and External drivers
- * based on the original TT driver.
- * - 26 Jan 95: Geert: Amiga version
- * - 19 Feb 95: Hamish: added Jes Sorensen's ECS patches to the Amiga
- * frame buffer device. This provides ECS support and the
- * following screen-modes: multiscan, multiscan-lace,
- * super72, super72-lace, dblntsc, dblpal & euro72.
- * He suggests that we remove the old AGA screenmodes,
- * as they are non-standard, and some of them doesn't work
- * under ECS.
- */
+ /*
+ * Some default modes
+ */
-static struct mono_mono_amiga_fb_par {
- u_long smem_start;
- u_long smem_len;
- struct geometry *geometry;
- ushort scr_max_height; /* screen dimensions */
- ushort scr_max_width;
- ushort scr_height;
- ushort scr_width;
- ushort scr_depth;
- int bytes_per_row; /* offset to one line below */
- ulong fgcol;
- ulong bgcol;
- ulong crsrcol;
- ushort scroll_latch; /* Vblank support for hardware scroll */
- ushort y_wrap;
- ushort cursor_latch; /* Hardware cursor */
- ushort *cursor, *dummy;
- ushort cursor_flash;
- ushort cursor_visible;
- ushort diwstrt_v, diwstrt_h; /* display window control */
- ushort diwstop_v, diwstop_h;
- ushort bplcon0; /* display mode */
- ushort htotal;
- u_char *bitplane[8]; /* pointers to display bitplanes */
- ulong plane_size;
- ushort *coplist1hdr; /* List 1 static component */
- ushort *coplist1dyn; /* List 1 dynamic component */
- ushort *coplist2hdr; /* List 2 static component */
- ushort *coplist2dyn; /* List 2 dynamic component */
-} mono_current_par;
-
-
-static ushort mono_cursor_data[] =
-{
- 0x2c81,0x2d00,
- 0xf000,0x0000,
- 0x0000,0x0000
-};
+#define DEFMODE_PAL "pal" /* for PAL OCS/ECS */
+#define DEFMODE_NTSC "ntsc" /* for NTSC OCS/ECS */
+#define DEFMODE_AMBER_PAL "pal-lace" /* for flicker fixed PAL (A3000) */
+#define DEFMODE_AMBER_NTSC "ntsc-lace" /* for flicker fixed NTSC (A3000) */
+#define DEFMODE_AGA "vga70" /* for AGA */
+ /*
+ * Macros for the conversion from real world values to hardware register
+ * values
+ *
+ * This helps us to keep our attention on the real stuff...
+ *
+ * Hardware limits for AGA:
+ *
+ * parameter min max step
+ * --------- --- ---- ----
+ * diwstrt_h 0 2047 1
+ * diwstrt_v 0 2047 1
+ * diwstop_h 0 4095 1
+ * diwstop_v 0 4095 1
+ *
+ * ddfstrt 0 2032 16
+ * ddfstop 0 2032 16
+ *
+ * htotal 8 2048 8
+ * hsstrt 0 2040 8
+ * hsstop 0 2040 8
+ * vtotal 1 4096 1
+ * vsstrt 0 4095 1
+ * vsstop 0 4095 1
+ * hcenter 0 2040 8
+ *
+ * hbstrt 0 2047 1
+ * hbstop 0 2047 1
+ * vbstrt 0 4095 1
+ * vbstop 0 4095 1
+ *
+ * Horizontal values are in 35 ns (SHRES) pixels
+ * Vertical values are in half scanlines
+ */
-/*
- * Color definitions
- */
+/* bplcon1 (smooth scrolling) */
-#define FG_COLOR (0x000000) /* black */
-#define BG_COLOR (0xaaaaaa) /* lt. grey */
-#define CRSR_COLOR (0xff0000) /* bright red */
-
-#define FG_COLOR_INV BG_COLOR
-#define BG_COLOR_INV FG_COLOR
-#define CRSR_COLOR_INV (0x6677aa) /* a blue-ish color */
+#define hscroll2hw(hscroll) \
+ (((hscroll)<<12 & 0x3000) | ((hscroll)<<8 & 0xc300) | \
+ ((hscroll)<<4 & 0x0c00) | ((hscroll)<<2 & 0x00f0) | ((hscroll)>>2 & 0x000f))
-/*
- * Split 24-bit RGB colors in 12-bit MSB (for OCS/ECS/AGA) and LSB (for AGA)
- */
+/* diwstrt/diwstop/diwhigh (visible display window) */
-#define COLOR_MSB(rgb) (((rgb>>12)&0xf00)|((rgb>>8)&0x0f0)|((rgb>>4)&0x00f))
-#define COLOR_LSB(rgb) (((rgb>>8) &0xf00)|((rgb>>4)&0x0f0)|((rgb) &0x00f))
+#define diwstrt2hw(diwstrt_h, diwstrt_v) \
+ (((diwstrt_v)<<7 & 0xff00) | ((diwstrt_h)>>2 & 0x00ff))
+#define diwstop2hw(diwstop_h, diwstop_v) \
+ (((diwstop_v)<<7 & 0xff00) | ((diwstop_h)>>2 & 0x00ff))
+#define diwhigh2hw(diwstrt_h, diwstrt_v, diwstop_h, diwstop_v) \
+ (((diwstop_h)<<3 & 0x2000) | ((diwstop_h)<<11 & 0x1800) | \
+ ((diwstop_v)>>1 & 0x0700) | ((diwstrt_h)>>5 & 0x0020) | \
+ ((diwstrt_h)<<3 & 0x0018) | ((diwstrt_v)>>9 & 0x0007))
-/* Cursor definitions */
+/* ddfstrt/ddfstop (display DMA) */
-#define CRSR_FLASH 1 /* Cursor flashing on(1)/off(0) */
-#define CRSR_BLOCK 1 /* Block(1) or line(0) cursor */
+#define ddfstrt2hw(ddfstrt) div8(ddfstrt)
+#define ddfstop2hw(ddfstop) div8(ddfstop)
+/* hsstrt/hsstop/htotal/vsstrt/vsstop/vtotal/hcenter (sync timings) */
-/* controlling screen blanking (read in VBL handler) */
-static int mono_do_blank;
-static int mono_do_unblank;
-static unsigned short mono_save_bplcon3;
+#define hsstrt2hw(hsstrt) (div8(hsstrt))
+#define hsstop2hw(hsstop) (div8(hsstop))
+#define htotal2hw(htotal) (div8(htotal)-1)
+#define vsstrt2hw(vsstrt) (div2(vsstrt))
+#define vsstop2hw(vsstop) (div2(vsstop))
+#define vtotal2hw(vtotal) (div2(vtotal)-1)
+#define hcenter2hw(htotal) (div8(htotal))
-/*
- * mono_ecs_color_zero is used to keep custom.color[0] for the special ECS color-
- * table, as custom.color[0] is cleared at vblank interrupts.
- * -Jes (jds@kom.auc.dk)
- */
+/* hbstrt/hbstop/vbstrt/vbstop (blanking timings) */
-static ushort mono_ecs_color_zero;
+#define hbstrt2hw(hbstrt) (((hbstrt)<<8 & 0x0700) | ((hbstrt)>>3 & 0x00ff))
+#define hbstop2hw(hbstop) (((hbstop)<<8 & 0x0700) | ((hbstop)>>3 & 0x00ff))
+#define vbstrt2hw(vbstrt) (div2(vbstrt))
+#define vbstop2hw(vbstop) (div2(vbstop))
+
+/* colour */
+
+#define rgb2hw8_high(red, green, blue) \
+ (((red)<<4 & 0xf00) | ((green) & 0x0f0) | ((blue)>>4 & 0x00f))
+#define rgb2hw8_low(red, green, blue) \
+ (((red)<<8 & 0xf00) | ((green)<<4 & 0x0f0) | ((blue) & 0x00f))
+#define rgb2hw4(red, green, blue) \
+ (((red)<<8 & 0xf00) | ((green)<<4 & 0x0f0) | ((blue) & 0x00f))
+#define rgb2hw2(red, green, blue) \
+ (((red)<<10 & 0xc00) | ((green)<<6 & 0x0c0) | ((blue)<<2 & 0x00c))
-static struct {
- int right_count;
- int done;
-} mono_vblank;
+/* sprpos/sprctl (sprite positioning) */
+#define spr2hw_pos(start_v, start_h) \
+ (((start_v)<<7&0xff00) | ((start_h)>>3&0x00ff))
+#define spr2hw_ctl(start_v, start_h, stop_v) \
+ (((stop_v)<<7&0xff00) | ((start_v)>>4&0x0040) | ((stop_v)>>5&0x0020) | \
+ ((start_h)<<3&0x0018) | ((start_v)>>7&0x0004) | ((stop_v)>>8&0x0002) | \
+ ((start_h)>>2&0x0001))
-static __inline__ void mono_init_vblank(void)
-{
- mono_vblank.right_count = 0;
- mono_vblank.done = 0;
-}
+/* get current vertical position of beam */
+#define get_vbpos() ((u_short)((*(u_long volatile *)&custom.vposr >> 7) & 0xffe))
-/* Geometry structure contains all useful information about given mode.
- *
- * Strictly speaking `scr_max_height' and `scr_max_width' is redundant
- * information with DIWSTRT value provided. Might be useful if modes
- * can be hotwired by user in future. It fits for the moment.
- *
- * At the moment, the code only distinguishes between OCS and AGA. ECS
- * lies somewhere in between - someone more familiar with it could make
- * appropriate modifications so that some advanced display modes are
- * available, without confusing the poor chipset. OCS modes use only the
- * bplcon0, diwstrt, diwstop, ddfstrt, ddfstop registers (a few others could
- * be used as well). -wjr
- *
- * The code now supports ECS as well, except for FMODE all control registers
- * are the same under ECS. A special color-table has to be generated though.
- * -Jes
- */
-struct geometry {
- char *modename; /* Name this thing */
- char isOCS; /* Is it OCS or ECS/AGA */
- ushort bplcon0; /* Values for bit plane control register 0 */
- ushort scr_width;
- ushort scr_height;
- ushort scr_depth;
- ushort scr_max_width; /* Historical, might be useful still */
- ushort scr_max_height;
- ushort diwstrt_h; /* Where the display window starts */
- ushort diwstrt_v;
- ushort alignment; /* Pixels per scanline must be a multiple of this */
- /* OCS doesn't need anything past here */
- ushort bplcon2;
- ushort bplcon3;
- /* The rest of these control variable sync */
- ushort htotal; /* Total hclocks */
- ushort hsstrt; /* HSYNC start and stop */
- ushort hsstop;
- ushort hbstrt; /* HBLANK start and stop */
- ushort hbstop;
- ushort vtotal; /* Total vlines */
- ushort vsstrt; /* VSYNC, VBLANK ditto */
- ushort vsstop;
- ushort vbstrt;
- ushort vbstop;
- ushort hcenter; /* Center of line, for interlaced modes */
- ushort beamcon0; /* Beam control */
- ushort fmode; /* Memory fetch mode */
-};
+ /*
+ * Copper Initialisation List
+ */
-#define MAX_COP_LIST_ENTS 64
-#define COP_MEM_REQ (MAX_COP_LIST_ENTS*4*2)
-#define SPR_MEM_REQ (24)
+#define COPINITSIZE (sizeof(copins)*40)
+enum {
+ cip_bplcon0
+};
-static struct geometry mono_modes[] = {
- /* NTSC modes: !!! can't guarantee anything about overscan modes !!! */
- {
- "ntsc-lace", 1,
- BPC0_HIRES | BPC0_LACE,
- 640, 400, 1,
- 704, 480,
- 0x71, 0x18, /* diwstrt h,v */
- 16 /* WORD aligned */
- }, {
- "ntsc", 1,
- BPC0_HIRES,
- 640, 200, 1,
- 704, 240,
- 0x71, 0x18,
- 16 /* WORD aligned */
- }, {
- "ntsc-lace-over", 1,
- BPC0_HIRES | BPC0_LACE,
- 704, 480, 1,
- 704, 480,
- 0x71, 0x18,
- 16 /* WORD aligned */
- }, {
- "ntsc-over", 1,
- BPC0_HIRES,
- 704, 240, 1,
- 704, 240,
- 0x71, 0x18,
- 16 /* WORD aligned */
- },
- /* PAL modes. Warning:
- *
- * PAL overscan causes problems on my machine because maximum diwstop_h
- * value seems to be ~0x1c2, rather than 0x1e0+ inferred by RKM 1.1
- * and 0x1d5 inferred by original `amicon.c' source. Is this a hardware
- * limitation of OCS/pal or 1084?. Or am I doing something stupid here?
- *
- * Included a couple of overscan modes that DO work on my machine,
- * although not particularly useful.
+ /*
+ * Long Frame/Short Frame Copper List
+ * Don't change the order, build_copper()/rebuild_copper() rely on this
*/
- {
- "pal-lace", 1,
- BPC0_HIRES | BPC0_LACE,
- 640, 512, 1,
- 704, 592,
- 0x71, 0x18,
- 16 /* WORD aligned */
- }, {
- "pal", 1,
- BPC0_HIRES,
- 640, 256, 1,
- 704, 296,
- 0x71, 0x18,
- 16 /* WORD aligned */
- }, {
- "pal-lace-over", 1,
- BPC0_HIRES | BPC0_LACE,
- 704, 592, 1,
- 704, 582,
- 0x5b, 0x18,
- 16 /* WORD aligned */
- }, {
- "pal-over", 1,
- BPC0_HIRES,
- 704, 296, 1,
- 704, 296,
- 0x5b, 0x18,
- 16 /* WORD aligned */
-
- },
- /* ECS modes, these are real ECS modes */
- {
- "multiscan", 0,
- BPC0_SHRES | BPC0_ECSENA, /* bplcon0 */
- 640, 480, 1,
- 640, 480,
- 0x0041, 0x002c, /* diwstrt h,v */
- 64, /* 64-bit aligned */
- BPC2_KILLEHB, /* bplcon2 */
- BPC3_PF2OF1 | BPC3_PF2OF0 | BPC3_SPRES1 | BPC3_SPRES0 |
- BPC3_BRDRBLNK | BPC3_EXTBLKEN, /* bplcon3 */
-
- 0x0072, /* htotal */
- 0x000a, /* hsstrt */
- 0x0013, /* hsstop */
- 0x0002, /* hbstrt */
- 0x001c, /* hbstop */
- 0x020c, /* vtotal */
- 0x0008, /* vsstrt */
- 0x0011, /* vsstop */
- 0x0000, /* vbstrt */
- 0x001c, /* vbstop */
- 0x0043, /* hcenter */
- BMC0_VARVBEN | BMC0_LOLDIS | BMC0_VARVSYEN |
- BMC0_VARHSYEN | BMC0_VARBEAMEN | BMC0_BLANKEN,
- /* beamcon0 */
- FMODE_BPAGEM | FMODE_BPL32 /* fmode */
- },
- {
- "multiscan-lace", 0,
- BPC0_SHRES | BPC0_LACE | BPC0_ECSENA, /* bplcon0 */
- 640, 960, 1,
- 640, 960,
- 0x0041, 0x002c, /* diwstrt h,v */
- 64, /* 64-bit aligned */
- BPC2_KILLEHB, /* bplcon2 */
- BPC3_PF2OF1 | BPC3_PF2OF0 | BPC3_SPRES1 | BPC3_SPRES0 |
- BPC3_BRDRBLNK | BPC3_EXTBLKEN, /* bplcon3 */
-
- 0x0072, /* htotal */
- 0x000a, /* hsstrt */
- 0x0013, /* hsstop */
- 0x0002, /* hbstrt */
- 0x001c, /* hbstop */
- 0x020c, /* vtotal */
- 0x0008, /* vsstrt */
- 0x0011, /* vsstop */
- 0x0000, /* vbstrt */
- 0x001c, /* vbstop */
- 0x0043, /* hcenter */
- BMC0_VARVBEN | BMC0_LOLDIS | BMC0_VARVSYEN |
- BMC0_VARHSYEN | BMC0_VARBEAMEN | BMC0_BLANKEN,
- /* beamcon0 */
- FMODE_BPAGEM | FMODE_BPL32 /* fmode */
- },
- /* Super 72 - 800x300 72Hz noninterlaced mode. */
- {
- "super72", 0,
- BPC0_SHRES | BPC0_ECSENA, /* bplcon0 */
- 800, 304, 1, /* need rows%8 == 0 */
- 800, 304, /* (cols too) */
- 0x0051, 0x0021, /* diwstrt h,v */
- 64, /* 64-bit aligned */
- BPC2_KILLEHB, /* bplcon2 */
- BPC3_PF2OF1 | BPC3_PF2OF0 | BPC3_SPRES1 | BPC3_SPRES0 |
- BPC3_BRDRBLNK | BPC3_EXTBLKEN, /* bplcon3 */
- 0x0091, /* htotal */
- 0x000a, /* hsstrt */
- 0x0013, /* hsstop */
- 0x0001, /* hbstrt */
- 0x001e, /* hbstop */
- 0x0156, /* vtotal */
- 0x0009, /* vsstrt */
- 0x0012, /* vsstop */
- 0x0000, /* vbstrt */
- 0x001c, /* vbstop */
- 0x0052, /* hcenter */
- BMC0_VARVBEN | BMC0_LOLDIS | BMC0_VARVSYEN |
- BMC0_VARHSYEN | BMC0_VARBEAMEN | BMC0_BLANKEN,
- /* beamcon0 */
- FMODE_BPAGEM | FMODE_BPL32 /* fmode */
- },
- /* Super 72 lace - 800x600 72Hz interlaced mode. */
- {
- "super72-lace", 0,
- BPC0_SHRES | BPC0_LACE | BPC0_ECSENA, /* bplcon0 */
- 800, 600, 1, /* need rows%8 == 0 */
- 800, 600, /* (cols too) */
- 0x0051, 0x0021, /* diwstrt h,v */
- 64, /* 64-bit aligned */
- BPC2_KILLEHB, /* bplcon2 */
- BPC3_PF2OF1 | BPC3_PF2OF0 | BPC3_SPRES1 | BPC3_SPRES0 |
- BPC3_BRDRBLNK | BPC3_EXTBLKEN,
- /* bplcon3 */
- 0x0091, /* htotal */
- 0x000a, /* hsstrt */
- 0x0013, /* hsstop */
- 0x0001, /* hbstrt */
- 0x001e, /* hbstop */
- 0x0150, /* vtotal */
- 0x0009, /* vsstrt */
- 0x0012, /* vsstop */
- 0x0000, /* vbstrt */
- 0x001c, /* vbstop */
- 0x0052, /* hcenter */
- BMC0_VARVBEN | BMC0_LOLDIS | BMC0_VARVSYEN |
- BMC0_VARHSYEN | BMC0_VARBEAMEN | BMC0_BLANKEN,
- /* beamcon0 */
- FMODE_BPAGEM | FMODE_BPL32 /* fmode */
- },
- /* DblNtsc - 640x400 59Hz noninterlaced mode. */
- {
- "dblntsc", 0,
- BPC0_SHRES | BPC0_ECSENA, /* bplcon0 */
- 640, 400, 1, /* need rows%8 == 0 */
- 640, 400, /* (cols too) */
- 0x0049, 0x0021, /* diwstrt h,v */
- 64, /* 64-bit aligned */
- BPC2_KILLEHB, /* bplcon2 */
- BPC3_PF2OF1 | BPC3_PF2OF0 | BPC3_SPRES1 | BPC3_SPRES0 |
- BPC3_BRDRBLNK | BPC3_EXTBLKEN,
- /* bplcon3 */
- 0x0079, /* htotal */
- 0x0007, /* hsstrt */
- 0x0013, /* hsstop */
- 0x0001, /* hbstrt */
- 0x001e, /* hbstop */
- 0x01ec, /* vtotal */
- 0x0008, /* vsstrt */
- 0x0010, /* vsstop */
- 0x0000, /* vbstrt */
- 0x0019, /* vbstop */
- 0x0046, /* hcenter */
- BMC0_VARVBEN | BMC0_LOLDIS | BMC0_VARVSYEN |
- BMC0_VARHSYEN | BMC0_VARBEAMEN | BMC0_BLANKEN,
- /* beamcon0 */
- FMODE_BPAGEM | FMODE_BPL32 /* fmode */
- },
- /* DblPal - 640x512 52Hz noninterlaced mode. */
- {
- "dblpal", 0,
- BPC0_SHRES | BPC0_ECSENA, /* bplcon0 */
- 640, 512, 1, /* need rows%8 == 0 */
- 640, 512, /* (cols too) */
- 0x0049, 0x0021, /* diwstrt h,v */
- 64, /* 64-bit aligned */
- BPC2_KILLEHB, /* bplcon2 */
- BPC3_PF2OF1 | BPC3_PF2OF0 | BPC3_SPRES1 | BPC3_SPRES0 |
- BPC3_BRDRBLNK | BPC3_EXTBLKEN,
- /* bplcon3 */
- 0x0079, /* htotal */
- 0x0007, /* hsstrt */
- 0x0013, /* hsstop */
- 0x0001, /* hbstrt */
- 0x001e, /* hbstop */
- 0x0234, /* vtotal */
- 0x0008, /* vsstrt */
- 0x0010, /* vsstop */
- 0x0000, /* vbstrt */
- 0x0019, /* vbstop */
- 0x0046, /* hcenter */
- BMC0_VARVBEN | BMC0_LOLDIS | BMC0_VARVSYEN |
- BMC0_VARHSYEN | BMC0_VARBEAMEN | BMC0_BLANKEN,
- /* beamcon0 */
- FMODE_BPAGEM | FMODE_BPL32 /* fmode */
- },
- /* Euro72 - productivity - 640x400 71Hz noninterlaced mode. */
- {
- "euro72", 0,
- BPC0_SHRES | BPC0_ECSENA, /* bplcon0 */
- 640, 400, 1, /* need rows%8 == 0 */
- 640, 400, /* (cols too) */
- 0x0041, 0x0021, /* diwstrt h,v */
- 64, /* 64-bit aligned */
- BPC2_KILLEHB, /* bplcon2 */
- BPC3_PF2OF1 | BPC3_PF2OF0 | BPC3_SPRES1 | BPC3_SPRES0 |
- BPC3_BRDRBLNK | BPC3_EXTBLKEN,
- /* bplcon3 */
- 0x0071, /* htotal */
- 0x0009, /* hsstrt */
- 0x0013, /* hsstop */
- 0x0001, /* hbstrt */
- 0x001e, /* hbstop */
- 0x01be, /* vtotal */
- 0x0008, /* vsstrt */
- 0x0016, /* vsstop */
- 0x0000, /* vbstrt */
- 0x001f, /* vbstop */
- 0x0041, /* hcenter */
- BMC0_VARVBEN | BMC0_LOLDIS | BMC0_VARVSYEN |
- BMC0_VARHSYEN | BMC0_VARBEAMEN | BMC0_BLANKEN,
- /* beamcon0 */
- FMODE_BPAGEM | FMODE_BPL32 /* fmode */
- },
- /* AGA modes */
- {
- /*
- * A 640x480, 60Hz noninterlaced AGA mode. It would be nice to be
- * able to have some of these values computed dynamically, but that
- * requires more knowledge of AGA than I have. At the moment,
- * the values make it centered on my 1960 monitor. -wjr
- *
- * For random reasons to do with the way arguments are parsed,
- * these names can't start with a digit.
- *
- * Don't count on being able to reduce scr_width and scr_height
- * and ending up with a smaller but well-formed screen - this
- * doesn't seem to work well at the moment.
- */
- "aga640x480", 0,
- BPC0_SHRES | BPC0_ECSENA, /* bplcon0 */
- 640, 480, 1,
- 640, 480,
- 0x0041, 0x002b, /* diwstrt h,v */
- 64, /* 64-bit aligned */
- BPC2_KILLEHB, /* bplcon2 */
- BPC3_PF2OF1 | BPC3_PF2OF0 | BPC3_SPRES1 | BPC3_SPRES0 |
- BPC3_BRDRBLNK | BPC3_EXTBLKEN, /* bplcon3 */
- 0x0071, /* htotal */
- 0x000c, /* hsstrt */
- 0x001c, /* hsstop */
- 0x0008, /* hbstrt */
- 0x001e, /* hbstop */
- 0x020c, /* vtotal */
- 0x0001, /* vsstrt */
- 0x0003, /* vsstop */
- 0x0000, /* vbstrt */
- 0x000f, /* vbstop */
- 0x0046, /* hcenter */
- BMC0_HARDDIS | BMC0_VARVBEN | BMC0_LOLDIS | BMC0_VARVSYEN |
- BMC0_VARHSYEN | BMC0_VARBEAMEN | BMC0_BLANKEN, /* beamcon0 */
- FMODE_BPAGEM | FMODE_BPL32 /* fmode */
- }, {
- /* An 800x600 72Hz interlaced mode. */
- "aga800x600", 0,
- BPC0_SHRES | BPC0_LACE | BPC0_ECSENA, /* bplcon0 */
- 896, 624, 1, /* need rows%8 == 0 */
- 896, 624, /* (cols too) */
- 0x0041, 0x001e, /* diwstrt h,v */
- 64, /* 64-bit aligned */
- BPC2_KILLEHB, /* bplcon2 */
- BPC3_PF2OF1 | BPC3_PF2OF0 | BPC3_SPRES1 | BPC3_SPRES0 |
- BPC3_BRDRBLNK | BPC3_EXTBLKEN, /* bplcon3 */
- 0x0091, /* htotal */
- 0x000e, /* hsstrt */
- 0x001d, /* hsstop */
- 0x000a, /* hbstrt */
- 0x001e, /* hbstop */
- 0x0156, /* vtotal */
- 0x0001, /* vsstrt */
- 0x0003, /* vsstop */
- 0x0000, /* vbstrt */
- 0x000f, /* vbstop */
- 0x0050, /* hcenter */
- BMC0_HARDDIS | BMC0_VARVBEN | BMC0_LOLDIS | BMC0_VARVSYEN |
- BMC0_VARHSYEN | BMC0_VARBEAMEN | BMC0_BLANKEN, /* beamcon0 */
- FMODE_BPAGEM | FMODE_BPL32 /* fmode */
- },
- /*
- * Additional AGA modes by Geert Uytterhoeven
- */
- {
- /*
- * A 720x400, 70 Hz noninterlaced AGA mode (29.27 kHz)
- */
- "aga720x400", 0,
- BPC0_SHRES | BPC0_ECSENA, /* bplcon0 */
- 720, 400, 1,
- 720, 400,
- 0x0041, 0x0013, /* diwstrt h,v */
- 64, /* 64-bit aligned */
- BPC2_KILLEHB, /* bplcon2 */
- BPC3_PF2OF1 | BPC3_PF2OF0 | BPC3_SPRES1 | BPC3_SPRES0 |
- BPC3_BRDRBLNK | BPC3_EXTBLKEN, /* bplcon3 */
- 0x0079, /* htotal */
- 0x000e, /* hsstrt */
- 0x0018, /* hsstop */
- 0x0001, /* hbstrt */
- 0x0021, /* hbstop */
- 0x01a2, /* vtotal */
- 0x0003, /* vsstrt */
- 0x0005, /* vsstop */
- 0x0000, /* vbstrt */
- 0x0012, /* vbstop */
- 0x0046, /* hcenter */
- BMC0_VARVBEN | BMC0_LOLDIS | BMC0_VARVSYEN | BMC0_VARHSYEN |
- BMC0_VARBEAMEN | BMC0_PAL | BMC0_VARCSYEN | BMC0_CSYTRUE |
- BMC0_VSYTRUE, /* beamcon0 */
- FMODE_BPAGEM | FMODE_BPL32 /* fmode */
- }, {
- /*
- * A 640x400, 76 Hz noninterlaced AGA mode (31.89 kHz)
- */
- "aga640x400", 0,
- BPC0_SHRES | BPC0_ECSENA, /* bplcon0 */
- 640, 400, 1,
- 640, 400,
- 0x0041, 0x0015, /* diwstrt h,v */
- 64, /* 64-bit aligned */
- BPC2_KILLEHB, /* bplcon2 */
- BPC3_PF2OF1 | BPC3_PF2OF0 | BPC3_SPRES1 | BPC3_SPRES0 |
- BPC3_BRDRBLNK | BPC3_EXTBLKEN, /* bplcon3 */
- 0x006f, /* htotal */
- 0x000d, /* hsstrt */
- 0x0018, /* hsstop */
- 0x0001, /* hbstrt */
- 0x0021, /* hbstop */
- 0x01a4, /* vtotal */
- 0x0003, /* vsstrt */
- 0x0005, /* vsstop */
- 0x0000, /* vbstrt */
- 0x0014, /* vbstop */
- 0x0046, /* hcenter */
- BMC0_VARVBEN | BMC0_LOLDIS | BMC0_VARVSYEN | BMC0_VARHSYEN |
- BMC0_VARBEAMEN | BMC0_PAL | BMC0_VARCSYEN | BMC0_CSYTRUE |
- BMC0_VSYTRUE, /* beamcon0 */
- FMODE_BPAGEM | FMODE_BPL32 /* fmode */
- }, {
- /*
- * A 640x480, 64 Hz noninterlaced AGA mode (31.89 kHz)
- */
- "aga640x480a", 0,
- BPC0_SHRES | BPC0_ECSENA, /* bplcon0 */
- 640, 480, 1,
- 640, 480,
- 0x0041, 0x0015, /* diwstrt h,v */
- 64, /* 64-bit aligned */
- BPC2_KILLEHB, /* bplcon2 */
- BPC3_PF2OF1 | BPC3_PF2OF0 | BPC3_SPRES1 | BPC3_SPRES0 |
- BPC3_BRDRBLNK | BPC3_EXTBLKEN, /* bplcon3 */
- 0x006f, /* htotal */
- 0x000e, /* hsstrt */
- 0x0018, /* hsstop */
- 0x0001, /* hbstrt */
- 0x0021, /* hbstop */
- 0x01f4, /* vtotal */
- 0x0003, /* vsstrt */
- 0x0005, /* vsstop */
- 0x0000, /* vbstrt */
- 0x0014, /* vbstop */
- 0x0046, /* hcenter */
- BMC0_VARVBEN | BMC0_LOLDIS | BMC0_VARVSYEN | BMC0_VARHSYEN |
- BMC0_VARBEAMEN | BMC0_PAL | BMC0_VARCSYEN | BMC0_CSYTRUE |
- BMC0_VSYTRUE, /* beamcon0 */
- FMODE_BPAGEM | FMODE_BPL32 /* fmode */
- }
-};
-#define NMODES (sizeof(mono_modes) / sizeof(struct geometry))
+#define COPLISTSIZE (sizeof(copins)*64)
-static struct fb_var_screeninfo mono_mono_amiga_fb_predefined[] = {
- { /* autodetect */
- 0, 0, 0, 0, 0, 0, 0, 0, /* xres-grayscale */
- {0, 0, 0}, {0, 0, 0}, {0, 0, 0}, {0, 0, 0}, /* red green blue tran*/
- 0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0 }
+enum {
+ cop_wait, cop_bplcon0,
+ cop_spr0ptrh, cop_spr0ptrl,
+ cop_diwstrt, cop_diwstop,
+ cop_diwhigh,
};
-static int mono_num_mono_amiga_fb_predefined= sizeof(mono_mono_amiga_fb_predefined)/sizeof(struct fb_var_screeninfo);
-
-
-
-/* Some default modes */
-#define OCS_PAL_LOWEND_DEFMODE 5 /* PAL non-laced for 500/2000 */
-#define OCS_PAL_3000_DEFMODE 4 /* PAL laced for 3000 */
-#define OCS_NTSC_LOWEND_DEFMODE 1 /* NTSC non-laced for 500/2000 */
-#define OCS_NTSC_3000_DEFMODE 0 /* NTSC laced for 3000 */
-#define AGA_DEFMODE 8 /* 640x480 non-laced for AGA */
-
-static int mono_amifb_inverse = 0;
-static int mono_amifb_mode = -1;
-
-static void mono_video_setup (char *options, int *ints)
-{
- char *this_opt;
- int i;
-
- fb_info.fontname[0] = '\0';
-
- if (!options || !*options)
- return;
-
- for (this_opt = strtok(options,","); this_opt; this_opt = strtok(NULL,","))
- if (!strcmp (this_opt, "inverse"))
- mono_amifb_inverse = 1;
- else if (!strncmp(this_opt, "font:", 5))
- strcpy(fb_info.fontname, this_opt+5);
- else
- for (i = 0; i < NMODES; i++)
- if (!strcmp(this_opt, mono_modes[i].modename)) {
- mono_amifb_mode = i;
- break;
- }
-}
-
-/* Notes about copper scrolling:
- *
- * 1. The VBLANK routine dynamically rewrites a LIVE copper list that is
- * currently being executed. Don't mess with it unless you know the
- * complications. Fairly sure that double buffered lists doesn't
- * make our life any easier.
- *
- * 2. The vblank code starts executing at logical line 0. Display must be
- * set up and ready to run by line DIWSTRT_V, typically 0x2c, minimum
- * value is 0x18 for maximum overscan.
- *
- * Tests on my A500/030 for dynamically generating a 37 element copper
- * list during the VBLANK period under AmigaDos required between
- * 0x10 and 0x14 scanlines. This should be pathological case, and
- * should do better under Linux/68k. It is however IMPERATIVE that I am
- * first in the VBLANK isr chain. Try to keep 'buildclist' as fast as
- * possible. Don't think that it justifies assembler thou'
- *
- * 3. PAL 640x256 display (no overscan) has copper-wait y positions in range
- * 0x02c -> 0x12c. NTSC overscan uses values > 256 too. However counter
- * is 8 bit, will wrap. RKM 1.1 suggests use of a WAIT(0x00,0xff),
- * WAIT(x,y-0x100) pair to handle this case. This is WRONG - must use
- * WAIT(0xe2,0xff) to ensure that wrap occurred by next copper
- * instruction. Argghh!
- *
- * 4. RKM 1.1 suggests Copper-wait x positions are in range [0,0xe2].
- * Horizontal blanking occurs in range 0x0f -> 0x35. Black screen
- * shown in range 0x04 -> 0x47.
- *
- * Experiments suggest that using WAIT(0x00,y), we can replace up to
- * 7 bitplane pointers before display fetch start. Using a
- * WAIT(0xe0,y-1) instead, we can replace 8 pointers that should be
- * all that we need for a full AGA display. Should work because of
- * fetch latency with bitmapped display.
- *
- * I think that this works. Someone please tell me if something breaks.
- *
- * Is diwstop_h the right value to use for "close to the end of line"?
- * It seems to work for me, at least for the modes I've defined. -wjr
- *
- * I changed the Wait(diwstop_h, 0xff) for 256-line chunk skipping to
- * Wait(diwstop_h-2, 0xff) to make it work with the additional
- * `get-all-you-can-get-out-of-it' AGA modes. Maybe we should derive the
- * wait position from the HTOTAL value? - G.U.
- *
- * The Wait(diwstop_h-2, 0xff) didn't work in Super72 under ECS, instead
- * I changed it to Wait(htotal-4, 0xff). Dunno whether it works under AGA,
- * and don't ask my why it works. I'm trying to get some facts on this issue
- * from Commodore.
- * -Jes
- */
-
-static __inline__ ushort *mono_build_clist_hdr(register struct display *p,
- ushort *cop,
- ushort *othercop) /* Interlace: List for next frame */
-{
- int i;
- ushort diwstrt_v = mono_current_par.diwstrt_v;
- ushort diwstop_h = mono_current_par.diwstop_h;
-
- if (othercop) {
- *cop++ = CUSTOM_OFS(cop1lc);
- *cop++ = (long)othercop >> 16;
- *cop++ = CUSTOM_OFS(cop1lc) + 2;
- *cop++ = (long)othercop;
- }
-
- /* Point Sprite 0 at cursor sprite: */
- *cop++ = CUSTOM_OFS(sprpt[0]);
- *cop++ = (ushort)((long)mono_current_par.cursor >> 16);
- *cop++ = CUSTOM_OFS(sprpt[0]) + 2;
- *cop++ = (ushort)((long)mono_current_par.cursor & 0x0000ffff);
-
- /* Point Sprites 1-7 at dummy sprite: */
- for (i=1; i<8; i++) {
- *cop++ = CUSTOM_OFS(sprpt[i]);
- *cop++ = (ushort)((long)mono_current_par.dummy >> 16);
- *cop++ = CUSTOM_OFS(sprpt[i]) + 2;
- *cop++ = (ushort)((long)mono_current_par.dummy & 0x0000ffff);
- }
-
- /* Halt copper until we have rebuilt the display list */
-
- *cop++ = ((diwstrt_v - 2) << 8) | (diwstop_h >> 1) | 0x1;
- *cop++ = 0xfffe;
-
- return(cop);
-}
-
-static __inline__ ushort *mono_build_clist_dyn(register struct display *p,
- ushort *cop,
- int shf) /* Interlace: Short frame */
-{
- ushort diwstrt_v = mono_current_par.diwstrt_v;
- ushort diwstop_h = mono_current_par.diwstop_h;
- ushort y_wrap = mono_current_par.y_wrap;
- ulong offset = y_wrap * mono_current_par.bytes_per_row;
- long scrmem;
- int i;
-
- /* Set up initial bitplane ptrs */
-
- for (i = 0 ; i < mono_current_par.scr_depth ; i++) {
- scrmem = ((long)mono_current_par.bitplane[i]) + offset;
-
- if (shf)
- scrmem += mono_current_par.bytes_per_row;
-
- *cop++ = CUSTOM_OFS(bplpt[i]);
- *cop++ = (long)scrmem >> 16;
- *cop++ = CUSTOM_OFS(bplpt[i]) + 2;
- *cop++ = (long)scrmem;
- }
-
- /* If wrapped frame needed - wait for line then switch bitplXs */
-
- if (y_wrap) {
- ushort line;
-
- if (mono_current_par.bplcon0 & BPC0_LACE)
- line = diwstrt_v + (mono_current_par.scr_height - y_wrap)/2;
- else
- line = diwstrt_v + mono_current_par.scr_height - y_wrap;
-
- /* Handle skipping over 256-line chunks */
- while (line > 256) {
- /* Hardware limitation - 8 bit counter */
- /* Wait(diwstop_h-2, 0xff) */
- if (mono_current_par.bplcon0 & BPC0_SHRES)
- /*
- * htotal-4 is used in SHRES-mode, as diwstop_h-2 doesn't work under ECS.
- * Does this work under AGA?
- * -Jes
- */
- *cop++ = 0xff00 | ((mono_current_par.htotal-4) | 1);
- else
- *cop++ = 0xff00 | ((diwstop_h-2) >> 1) | 0x1;
-
- *cop++ = 0xfffe;
- /* Wait(0, 0) - make sure we're in the new segment */
- *cop++ = 0x0001;
- *cop++ = 0xfffe;
- line -= 256;
+ /*
+ * Pixel modes for Bitplanes and Sprites
+ */
- /*
- * Under ECS we have to keep color[0], as it is part of a special color-table.
- */
+static u_short bplpixmode[3] = {
+ BPC0_SHRES, /* 35 ns */
+ BPC0_HIRES, /* 70 ns */
+ 0 /* 140 ns */
+};
- if (boot_info.bi_amiga.chipset == CS_ECS && mono_current_par.bplcon0 & BPC0_ECSENA) {
- *cop++ = 0x0180;
- *cop++ = mono_ecs_color_zero;
- }
- }
-
- /* Wait(diwstop_h, line - 1) */
- *cop++ = ((line - 1) << 8) | (diwstop_h >> 1) | 0x1;
- *cop++ = 0xfffe;
-
- for (i = 0 ; i < mono_current_par.scr_depth ; i++) {
- scrmem = (long)mono_current_par.bitplane[i];
- if (shf)
- scrmem += mono_current_par.bytes_per_row;
-
- *cop++ = CUSTOM_OFS(bplpt[i]);
- *cop++ = (long)scrmem >> 16;
- *cop++ = CUSTOM_OFS(bplpt[i]) + 2;
- *cop++ = (long)scrmem;
- }
- }
-
- /* End of Copper list */
- *cop++ = 0xffff;
- *cop++ = 0xfffe;
+static u_short sprpixmode[3] = {
+ BPC3_SPRES1 | BPC3_SPRES0, /* 35 ns */
+ BPC3_SPRES1, /* 70 ns */
+ BPC3_SPRES0 /* 140 ns */
+};
- return(cop);
-}
+ /*
+ * Fetch modes for Bitplanes and Sprites
+ */
+static u_short bplfetchmode[3] = {
+ 0, /* 1x */
+ FMODE_BPL32, /* 2x */
+ FMODE_BPAGEM | FMODE_BPL32 /* 4x */
+};
-static __inline__ void mono_build_cursor(register struct display *p)
-{
- int vs, hs, ve;
- ushort diwstrt_v = mono_current_par.diwstrt_v;
- ushort diwstrt_h = mono_current_par.diwstrt_h;
+static u_short sprfetchmode[3] = {
+ 0, /* 1x */
+ FMODE_SPR32, /* 2x */
+ FMODE_SPAGEM | FMODE_SPR32 /* 4x */
+};
- if (mono_current_par.bplcon0 & BPC0_LACE) {
- vs = diwstrt_v + (p->cursor_y * p->fontheight)/2;
- ve = vs + p->fontheight/2;
- } else {
- vs = diwstrt_v + (p->cursor_y * p->fontheight);
- ve = vs + p->fontheight;
- }
+ /*
+ * Default Colormaps
+ */
- if (mono_current_par.bplcon0 & BPC0_ECSENA)
- /*
- * It's an AGA mode. We'll assume that the sprite was set
- * into 35ns resolution by the appropriate SPRES bits in bplcon3.
- */
- hs = diwstrt_h * 4 + (p->cursor_x * p->fontwidth) - 4;
- else
- hs = diwstrt_h + (p->cursor_x * p->fontwidth) / 2 - 1;
+static u_short red2[] =
+ { 0x0000, 0xc000 };
+static u_short green2[] =
+ { 0x0000, 0xc000 };
+static u_short blue2[] =
+ { 0x0000, 0xc000 };
- if (mono_current_par.bplcon0 & BPC0_ECSENA) {
- /* There are some high-order bits on the sprite position */
- *((ulong *) mono_current_par.cursor) =
- ((((vs & 0xff) << 24) | ((vs & 0x100) >> 6) |
- ((vs & 0x200) >> 3)) |
- (((hs & 0x7f8) << 13) | ((hs & 0x4) >> 2) |
- ((hs & 0x3) << 3)) |
- (((ve & 0xff) << 8) | ((ve & 0x100) >> 7) |
- ((ve & 0x200) >> 4)));
- } else {
- *((ulong *) mono_current_par.cursor) =
- ((vs << 24) | ((vs & 0x00000100) >> 6) |
- ((hs & 0x000001fe) << 15) | (hs & 0x00000001) |
- ((ve & 0x000000ff) << 8) | ((ve & 0x00000100) >> 7));
- }
-}
+static u_short red4[] =
+ { 0x0000, 0xc000, 0x8000, 0xffff };
+static u_short green4[] =
+ { 0x0000, 0xc000, 0x8000, 0xffff };
+static u_short blue4[] =
+ { 0x0000, 0xc000, 0x8000, 0xffff };
-static void mono_build_ecs_colors(ushort color1, ushort color2, ushort color3,
- ushort color4, ushort *table)
-{
-/*
- * This function calculates the special ECS color-tables needed when running
- * new screen-modes available under ECS. See the hardware reference manual
- * 3rd edition for details.
- * -Jes
- */
-ushort t;
+static u_short red8[] =
+ { 0x0000, 0x0000, 0x0000, 0x0000, 0xc000, 0xc000, 0xc000, 0xc000 };
+static u_short green8[] =
+ { 0x0000, 0x0000, 0xc000, 0xc000, 0x0000, 0x0000, 0xc000, 0xc000 };
+static u_short blue8[] =
+ { 0x0000, 0xc000, 0x0000, 0xc000, 0x0000, 0xc000, 0x0000, 0xc000 };
- t = (color1 & 0x0ccc);
- table[0] = t;
- table[4] = t;
- table[8] = t;
- table[12] = t;
- t = t >> 2;
- table[0] = (table[0] | t);
- table[1] = t;
- table[2] = t;
- table[3] = t;
-
- t = (color2 & 0x0ccc);
- table[1] = (table[1] | t);
- table[5] = t;
- table[9] = t;
- table[13] = t;
- t = t >> 2;
- table[4] = (table[4] | t);
- table[5] = (table[5] | t);
- table[6] = t;
- table[7] = t;
-
- t = (color3 & 0x0ccc);
- table[2] = (table[2] | t);
- table[6] = (table[6] | t);
- table[10] = t;
- table[14] = t;
- t = t >> 2;
- table[8] = (table[8] | t);
- table[9] = (table[9] | t);
- table[10] = (table[10] | t);
- table[11] = t;
-
- t = (color4 & 0x0ccc);
- table[3] = (table[3] | t);
- table[7] = (table[7] | t);
- table[11] = (table[11] | t);
- table[15] = t;
- t = t >> 2;
- table[12] = (table[12] | t);
- table[13] = (table[13] | t);
- table[14] = (table[14] | t);
- table[15] = (table[15] | t);
+static u_short red16[] =
+ { 0x0000, 0x0000, 0x0000, 0x0000, 0xc000, 0xc000, 0xc000, 0xc000,
+ 0x8000, 0x0000, 0x0000, 0x0000, 0xffff, 0xffff, 0xffff, 0xffff };
+static u_short green16[] =
+ { 0x0000, 0x0000, 0xc000, 0xc000, 0x0000, 0x0000, 0xc000, 0xc000,
+ 0x8000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff };
+static u_short blue16[] =
+ { 0x0000, 0xc000, 0x0000, 0xc000, 0x0000, 0xc000, 0x0000, 0xc000,
+ 0x8000, 0xffff, 0x0000, 0xffff, 0x0000, 0xffff, 0x0000, 0xffff };
-}
-/* mono_display_init():
- *
- * Fills out (struct display *) given a geometry structure
- */
+static struct fb_cmap default_2_colors =
+ { 0, 2, red2, green2, blue2, NULL };
+static struct fb_cmap default_8_colors =
+ { 0, 8, red8, green8, blue8, NULL };
+static struct fb_cmap default_4_colors =
+ { 0, 4, red4, green4, blue4, NULL };
+static struct fb_cmap default_16_colors =
+ { 0, 16, red16, green16, blue16, NULL };
-static void mono_display_init(struct display *p,
- struct geometry *geom, ushort inverse)
-{
- ushort ecs_table[16];
- int i;
- char *chipptr;
- ushort diwstrt_v, diwstop_v;
- ushort diwstrt_h, diwstop_h;
- ushort diw_min_h, diw_min_v;
- ushort bplmod, diwstrt, diwstop, diwhigh, ddfstrt, ddfstop;
- ushort cursorheight, cursormask = 0;
- u_long size;
-
- /* Decide colour scheme */
-
- if (inverse) {
- mono_current_par.fgcol = FG_COLOR_INV;
- mono_current_par.bgcol = BG_COLOR_INV;
- mono_current_par.crsrcol = CRSR_COLOR_INV;
- } else {
- mono_current_par.fgcol = FG_COLOR;
- mono_current_par.bgcol = BG_COLOR;
- mono_current_par.crsrcol = CRSR_COLOR;
- }
-
- /* Define screen geometry */
-
- mono_current_par.scr_max_height = geom->scr_max_height;
- mono_current_par.scr_max_width = geom->scr_max_width;
- mono_current_par.scr_height = geom->scr_height;
- mono_current_par.scr_width = geom->scr_width;
- mono_current_par.scr_depth = geom->scr_depth;
- mono_current_par.bplcon0 = geom->bplcon0 | BPC0_COLOR;
- mono_current_par.htotal = geom->htotal;
+ /*
+ * Interface used by the world
+ */
- /* htotal was added, as I use it to calc the pal-line. -Jes */
+void amiga_video_setup(char *options, int *ints);
- if (mono_current_par.scr_depth < 8)
- mono_current_par.bplcon0 |= (mono_current_par.scr_depth << 12);
- else {
- /* must be exactly 8 */
- mono_current_par.bplcon0 |= BPC0_BPU3;
- }
+static int amiga_fb_get_fix(struct fb_fix_screeninfo *fix, int con);
+static int amiga_fb_get_var(struct fb_var_screeninfo *var, int con);
+static int amiga_fb_set_var(struct fb_var_screeninfo *var, int con);
+static int amiga_fb_pan_display(struct fb_var_screeninfo *var, int con);
+static int amiga_fb_get_cmap(struct fb_cmap *cmap, int kspc, int con);
+static int amiga_fb_set_cmap(struct fb_cmap *cmap, int kspc, int con);
+static int amiga_fb_ioctl(struct inode *inode, struct file *file, u_int cmd,
+ u_long arg, int con);
- diw_min_v = geom->diwstrt_v;
- diw_min_h = geom->diwstrt_h;
+static int amiga_fb_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix, int con);
+static int amiga_fb_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data, int con);
+static int amiga_fb_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data, int con);
+static int amiga_fb_get_cursorstate(struct fb_cursorstate *state, int con);
+static int amiga_fb_set_cursorstate(struct fb_cursorstate *state, int con);
- /* We can derive everything else from this, at least for OCS */
/*
- * For AGA: we don't use the finer position control available for
- * diw* yet (could be set by 35ns increments).
+ * Interface to the low level console driver
*/
- /* Calculate line and plane size while respecting the alignment restrictions */
- mono_current_par.bytes_per_row = ((mono_current_par.scr_width+geom->alignment-1)&~(geom->alignment-1)) >> 3;
- mono_current_par.plane_size = mono_current_par.bytes_per_row * mono_current_par.scr_height;
-
+struct fb_info *amiga_fb_init(long *mem_start);
+static int amifbcon_switch(int con);
+static int amifbcon_updatevar(int con);
+static void amifbcon_blank(int blank);
/*
- * Quick hack for frame buffer mmap():
- *
- * plane_size must be a multiple of the page size
+ * Internal routines
*/
- mono_current_par.plane_size = PAGE_ALIGN(mono_current_par.plane_size);
-
-
- mono_current_par.y_wrap = 0; mono_current_par.scroll_latch = 1;
- p->cursor_x = 0; p->cursor_y = 0; mono_current_par.cursor_latch = 1;
+static struct fb_cmap *get_default_colormap(int bpp);
+static int do_fb_get_cmap(struct fb_cmap *cmap, struct fb_var_screeninfo *var,
+ int kspc);
+static int do_fb_set_cmap(struct fb_cmap *cmap, struct fb_var_screeninfo *var,
+ int kspc);
+static void do_install_cmap(int con);
+static void memcpy_fs(int fsfromto, void *to, void *from, int len);
+static void copy_cmap(struct fb_cmap *from, struct fb_cmap *to, int fsfromto);
+static int alloc_cmap(struct fb_cmap *cmap, int len, int transp);
+static int flash_cursor(void);
+static void amifb_interrupt(int irq, void *dev_id, struct pt_regs *fp);
+static void get_video_mode(const char *name);
+static void check_default_mode(void);
+static u_long chipalloc(u_long size);
+static char *strtoke(char *s,const char *ct);
- if (mono_current_par.bplcon0 & BPC0_LACE) {
- bplmod = mono_current_par.bytes_per_row;
- diwstrt_v = diw_min_v + (mono_current_par.scr_max_height - mono_current_par.scr_height)/4;
- diwstop_v = (diwstrt_v + mono_current_par.scr_height/2);
- } else {
- bplmod = 0;
- diwstrt_v = diw_min_v + (mono_current_par.scr_max_height - mono_current_par.scr_height)/2;
- diwstop_v = (diwstrt_v + mono_current_par.scr_height);
- }
+ /*
+ * Hardware routines
+ */
- if (mono_current_par.bplcon0 & BPC0_HIRES) {
- diwstrt_h = diw_min_h + (mono_current_par.scr_max_width - mono_current_par.scr_width)/4;
- diwstop_h = (diwstrt_h + mono_current_par.scr_width/2);
- /* ??? Where did 0x1d5 come from in original code ??? */
- } else if (mono_current_par.bplcon0 & BPC0_SHRES) {
- diwstrt_h = diw_min_h + (mono_current_par.scr_max_width - mono_current_par.scr_width)/8;
- diwstop_h = (diwstrt_h + mono_current_par.scr_width/4);
- } else {
- diwstrt_h = diw_min_h + (mono_current_par.scr_max_width - mono_current_par.scr_width)/2;
- diwstop_h = (diwstrt_h + mono_current_par.scr_width);
- }
+static int ami_encode_fix(struct fb_fix_screeninfo *fix,
+ struct amiga_fb_par *par);
+static int ami_decode_var(struct fb_var_screeninfo *var,
+ struct amiga_fb_par *par);
+static int ami_encode_var(struct fb_var_screeninfo *var,
+ struct amiga_fb_par *par);
+static void ami_get_par(struct amiga_fb_par *par);
+static void ami_set_var(struct fb_var_screeninfo *var);
+#ifdef DEBUG
+static void ami_set_par(struct amiga_fb_par *par);
+#endif
+static void ami_pan_var(struct fb_var_screeninfo *var);
+static int ami_update_par(void);
+static int ami_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
+ u_int *transp);
+static int ami_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+ u_int transp);
+static void ami_update_display(void);
+static void ami_init_display(void);
+static void ami_do_blank(void);
+static int ami_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix, int con);
+static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data, int con);
+static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data, int con);
+static int ami_get_cursorstate(struct fb_cursorstate *state, int con);
+static int ami_set_cursorstate(struct fb_cursorstate *state, int con);
+static void ami_set_sprite(void);
+static void ami_init_copper(void);
+static void ami_reinit_copper(void);
+static void ami_build_copper(void);
+static void ami_rebuild_copper(void);
- if (mono_current_par.bplcon0 & BPC0_HIRES) {
- ddfstrt = (diwstrt_h >> 1) - 4;
- ddfstop = ddfstrt + (4 * (mono_current_par.bytes_per_row>>1)) - 8;
- } else if (mono_current_par.bplcon0 & BPC0_SHRES && boot_info.bi_amiga.chipset == CS_AGA) {
- /* There may be some interaction with FMODE here... -8 is magic. */
- /*
- * This should be fixed, so it supports all different
- * FMODE's. FMODE varies the speed with 1,2 & 4 the
- * standard ECS speed. Someone else has to do it, as
- * I don't have an AGA machine with MMU available
- * here.
- *
- * This particular speed looks like FMODE = 3 to me.
- * ddfstop should be changed so it depends on FMODE under AGA.
- * -Jes
- */
- ddfstrt = (diwstrt_h >> 1) - 8;
- ddfstop = ddfstrt + (2 * (mono_current_par.bytes_per_row>>1)) - 8;
- } else if (mono_current_par.bplcon0 & BPC0_SHRES && boot_info.bi_amiga.chipset == CS_ECS){
- /*
- * Normal speed for ECS, should be the same for FMODE = 0
- * -Jes
- */
- ddfstrt = (diwstrt_h >> 1) - 2;
- ddfstop = ddfstrt + (2 * (mono_current_par.bytes_per_row>>1)) - 8;
- } else {
- ddfstrt = (diwstrt_h >> 1) - 8;
- ddfstop = ddfstrt + (8 * (mono_current_par.bytes_per_row>>1)) - 8;
- }
+ /*
+ * External references
+ */
- if (mono_current_par.bplcon0 & BPC0_LACE)
- cursorheight = p->fontheight/2;
- else
- cursorheight = p->fontheight;
+extern unsigned short ami_intena_vals[];
/*
- * Quick hack for frame buffer mmap():
- *
- * chipptr must be at a page boundary
+ * Support for Graphics Boards
*/
- size = mono_current_par.scr_depth*mono_current_par.plane_size+COP_MEM_REQ+SPR_MEM_REQ+4*(cursorheight-1);
- size += PAGE_SIZE-1;
- chipptr = amiga_chip_alloc(size);
- chipptr = (char *)PAGE_ALIGN((u_long)chipptr);
+#ifdef CONFIG_FB_CYBER /* Cybervision */
+extern int Cyber_probe(void);
+extern void Cyber_video_setup(char *options, int *ints);
+extern struct fb_info *Cyber_fb_init(long *mem_start);
-
- /* locate the bitplanes */
- /* These MUST be 64 bit aligned for full AGA compatibility!! */
+static int amifb_Cyber = 0;
+#endif /* CONFIG_FB_CYBER */
- mono_current_par.smem_start = (u_long)chipptr;
- mono_current_par.smem_len = mono_current_par.plane_size*mono_current_par.scr_depth;
- mono_current_par.geometry = geom;
+#ifdef CONFIG_GSP_RESOLVER /* DMI Resolver */
+extern int resolver_probe(void);
+extern void resolver_video_setup(char *options, int *ints);
+extern struct fb_info *resolver_fb_init(long *mem_start);
- for (i = 0 ; i < mono_current_par.scr_depth ; i++, chipptr += mono_current_par.plane_size) {
- mono_current_par.bitplane[i] = (u_char *) chipptr;
- memset ((void *)chipptr, 0, mono_current_par.plane_size); /* and clear */
- }
+static int amifb_resolver = 0;
+#endif /* CONFIG_GSP_RESOLVER */
- /* locate the copper lists */
- mono_current_par.coplist1hdr = (ushort *) chipptr; chipptr += MAX_COP_LIST_ENTS * 4;
- mono_current_par.coplist2hdr = (ushort *) chipptr; chipptr += MAX_COP_LIST_ENTS * 4;
+static struct fb_ops amiga_fb_ops = {
+ amiga_fb_get_fix, amiga_fb_get_var, amiga_fb_set_var, amiga_fb_get_cmap,
+ amiga_fb_set_cmap, amiga_fb_pan_display, amiga_fb_ioctl
+};
- /* locate the sprite data */
- mono_current_par.cursor = (ushort *) chipptr; chipptr += 8+4*cursorheight;
- mono_current_par.dummy = (ushort *) chipptr; chipptr += 12;
+void amiga_video_setup(char *options, int *ints)
+{
+ char *this_opt;
+ int i;
+ char mcap_spec[80];
- /* create the sprite data for the cursor image */
- memset((void *)mono_current_par.cursor, 0, 8+4*cursorheight);
/*
- * Only AGA supplies hires sprites.
+ * Check for a Graphics Board
*/
- if (mono_current_par.bplcon0 & BPC0_ECSENA && boot_info.bi_amiga.chipset == CS_AGA)
- /* AGA cursor is SHIRES, ECS sprites differ */
- for (i = 0; (i < p->fontwidth) && (i < 16); i++)
- cursormask |= 1<<(15-i);
- else
- /* For OCS & ECS sprites are pure LORES 8-< */
- for (i = 0; (i < p->fontwidth/2) && (i < 8); i++)
- cursormask |= 1<<(15-i);
-
- mono_current_par.cursor[0] = mono_cursor_data[0];
- mono_current_par.cursor[1] = mono_cursor_data[1];
-#if (CRSR_BLOCK == 1)
- for (i = 0; i < cursorheight; i++)
-#else
- for (i = cursorheight-2; i < cursorheight; i++)
-#endif
- mono_current_par.cursor[2+2*i] = cursormask;
-
- /* set dummy sprite data to a blank sprite */
- memset((void *)mono_current_par.dummy, 0, 12);
-
- /* set cursor flashing */
- mono_current_par.cursor_flash = CRSR_FLASH;
-
- /* Make the cursor invisible */
- mono_current_par.cursor_visible = 0;
-
- /* Initialise the chipregs */
- mono_current_par.diwstrt_v = diwstrt_v;
- mono_current_par.diwstrt_h = diwstrt_h;
- mono_current_par.diwstop_v = diwstop_v;
- mono_current_par.diwstop_h = diwstop_h;
- diwstrt = ((diwstrt_v << 8) | diwstrt_h);
- diwstop = ((diwstop_v & 0xff) << 8) | (diwstop_h & 0xff);
-
- custom.bplcon0 = mono_current_par.bplcon0; /* set the display mode */
- custom.bplcon1 = 0; /* Needed for horizontal scrolling */
- custom.bplcon2 = 0;
- custom.bpl1mod = bplmod;
- custom.bpl2mod = bplmod;
- custom.diwstrt = diwstrt;
- custom.diwstop = diwstop;
- custom.ddfstrt = ddfstrt;
- custom.ddfstop = ddfstop;
-
- custom.color[0] = COLOR_MSB(mono_current_par.bgcol);
- custom.color[1] = COLOR_MSB(mono_current_par.fgcol);
- custom.color[17] = COLOR_MSB(mono_current_par.crsrcol); /* Sprite 0 color */
-
- if (boot_info.bi_amiga.chipset == CS_AGA) {
- /* Fill in the LSB of the 24 bit color palette */
- /* Must happen after MSB */
- custom.bplcon3 = geom->bplcon3 | BPC3_LOCT;
- custom.color[0] = COLOR_LSB(mono_current_par.bgcol);
- custom.color[1] = COLOR_LSB(mono_current_par.fgcol);
- custom.color[17] = COLOR_LSB(mono_current_par.crsrcol);
- custom.bplcon3 = geom->bplcon3;
- }
-
- if (boot_info.bi_amiga.chipset == CS_ECS && mono_current_par.bplcon0 & BPC0_ECSENA) {
- /*
- * Calculation of the special ECS color-tables for
- * planes and sprites is done in the function
- * build_ecs_table
- */
-
- /*
- * Calcs a special ECS colortable for the bitplane,
- * and copies it to the custom registers
- */
- mono_build_ecs_colors(COLOR_MSB(mono_current_par.bgcol), COLOR_MSB(mono_current_par.fgcol),
- 0, 0, ecs_table);
-
-#if 0
- for (i = 0; i < 8; i++){
- custom.color[i] = ecs_table[i*2];
- custom.color[i+8] = ecs_table[i*2+1];
+#ifdef CONFIG_FB_CYBER
+ if (options && *options)
+ if (!strncmp(options, "cyber", 5) && Cyber_probe()) {
+ amifb_Cyber = 1;
+ Cyber_video_setup(options, ints);
+ return;
}
-#else
- for (i = 0; i < 16; i++){
- custom.color[i] = ecs_table[i];
+#endif /* CONFIG_FB_CYBER */
+#ifdef CONFIG_GSP_RESOLVER
+ if (options && *options)
+ if (!strncmp(options, "resolver", 5) && resolver_probe()) {
+ amifb_resolver = 1;
+ resolver_video_setup(options, ints);
+ return;
}
#endif
- mono_ecs_color_zero = ecs_table[0];
-
- /*
- * Calcs a special ECS colortable for the cursor
- * sprite, and copies it to the appropriate custom
- * registers
- */
- mono_build_ecs_colors(0, COLOR_MSB(mono_current_par.crsrcol), 0, 0, ecs_table);
-
- for (i = 0; i < 16; i++){
- custom.color[i+16] = ecs_table[i];
- }
- }
-
- if (!(geom->isOCS)) {
- /* Need to set up a bunch more regs */
- /* Assumes that diwstrt is in the (0,0) sector, but stop might not be */
- diwhigh = (diwstop_v & 0x700) | ((diwstop_h & 0x100) << 5);
-
- custom.bplcon2 = geom->bplcon2;
- custom.bplcon3 = geom->bplcon3;
- /* save bplcon3 for blanking */
- mono_save_bplcon3 = geom->bplcon3;
-
- custom.diwhigh = diwhigh; /* must happen AFTER diwstrt, stop */
-
- custom.htotal = geom->htotal;
- custom.hsstrt = geom->hsstrt;
- custom.hsstop = geom->hsstop;
- custom.hbstrt = geom->hbstrt;
- custom.hbstop = geom->hbstop;
- custom.vtotal = geom->vtotal;
- custom.vsstrt = geom->vsstrt;
- custom.vsstop = geom->vsstop;
- custom.vbstrt = geom->vbstrt;
- custom.vbstop = geom->vbstop;
- custom.hcenter = geom->hcenter;
- custom.beamcon0 = geom->beamcon0;
- if (boot_info.bi_amiga.chipset == CS_AGA) {
- custom.fmode = geom->fmode;
- }
- /*
- * fmode does NOT! exist under ECS, weird things might happen
- */
-
- /* We could load 8-bit colors here, if we wanted */
-
- /*
- * The minimum period for audio depends on htotal (for OCS/ECS/AGA)
- */
- if (boot_info.bi_amiga.chipset != CS_STONEAGE)
- amiga_audio_min_period = (geom->htotal>>1)+1;
- }
-
-
- /* Build initial copper lists. sprites must be set up, and mono_current_par.diwstrt. */
-
- if (mono_current_par.bplcon0 & BPC0_LACE) {
- mono_current_par.coplist1dyn = mono_build_clist_hdr(p,mono_current_par.coplist1hdr, mono_current_par.coplist2hdr),
- mono_build_clist_dyn(p, mono_current_par.coplist1dyn, 0);
-
- mono_current_par.coplist2dyn = mono_build_clist_hdr(p,mono_current_par.coplist2hdr, mono_current_par.coplist1hdr),
- mono_build_clist_dyn(p, mono_current_par.coplist2dyn, 1);
- } else {
- mono_current_par.coplist1dyn = mono_build_clist_hdr(p,mono_current_par.coplist1hdr, NULL),
- mono_build_clist_dyn(p, mono_current_par.coplist1dyn, 0);
- }
-
-
- /* Get ready to run first copper list */
- custom.cop1lc = mono_current_par.coplist1hdr;
- custom.copjmp1 = 0;
-
- /* turn on DMA for bitplane and sprites */
- custom.dmacon = DMAF_SETCLR | DMAF_RASTER | DMAF_COPPER | DMAF_SPRITE;
-
- if (mono_current_par.bplcon0 & BPC0_LACE) {
- /* Make sure we get the fields in the right order */
+ mcap_spec[0] = '\0';
+ fb_info.fontname[0] = '\0';
- /* wait for LOF frame bit to go low */
- while (custom.vposr & 0x8000)
- ;
+ if (!options || !*options)
+ return;
- /* wait for LOF frame bit to go high */
- while (!(custom.vposr & 0x8000))
- ;
+ for (this_opt = strtok(options, ","); this_opt; this_opt = strtok(NULL, ",")) {
+ char *p;
- /* start again at the beginning of copper list 1 */
- custom.cop1lc = mono_current_par.coplist1hdr;
- custom.copjmp1 = 0;
+ if (!strcmp(this_opt, "inverse")) {
+ amifb_inverse = 1;
+ for (i = 0; i < 16; i++) {
+ red16[i] = ~red16[i];
+ green16[i] = ~green16[i];
+ blue16[i] = ~blue16[i];
+ }
+ for (i = 0; i < 8; i++) {
+ red8[i] = ~red8[i];
+ green8[i] = ~green8[i];
+ blue8[i] = ~blue8[i];
+ }
+ for (i = 0; i < 4; i++) {
+ red4[i] = ~red4[i];
+ green4[i] = ~green4[i];
+ blue4[i] = ~blue4[i];
+ }
+ for (i = 0; i < 2; i++) {
+ red2[i] = ~red2[i];
+ green2[i] = ~green2[i];
+ blue2[i] = ~blue2[i];
+ }
+ } else if (!strcmp(this_opt, "ilbm"))
+ amifb_ilbm = 1;
+ else if (!strncmp(this_opt, "monitorcap:", 11))
+ strcpy(mcap_spec, this_opt+11);
+ else if (!strncmp(this_opt, "font:", 5))
+ strcpy(fb_info.fontname, this_opt+5);
+ else if (!strncmp(this_opt, "fstart:", 7))
+ min_fstrt = simple_strtoul(this_opt+7, NULL, 0);
+ else if (!strncmp(this_opt, "depth:", 6))
+ amiga_fb_predefined[0].bits_per_pixel =
+ simple_strtoul(this_opt+6, NULL, 0);
+ else if (!strncmp(this_opt, "size:", 5)) {
+ p = this_opt + 5;
+ if (*p != ';')
+ amiga_fb_predefined[0].xres =
+ simple_strtoul(p, NULL, 0);
+ if (!(p = strchr(p, ';')))
+ continue;
+ if (*++p != ';')
+ amiga_fb_predefined[0].yres =
+ simple_strtoul(p, NULL, 0);
+ if (!(p = strchr(p, ';')))
+ continue;
+ if (*++p != ';')
+ amiga_fb_predefined[0].xres_virtual =
+ simple_strtoul(p, NULL, 0);
+ if (!(p = strchr(p, ';')))
+ continue;
+ if (*++p != ';')
+ amiga_fb_predefined[0].yres_virtual =
+ simple_strtoul(p, NULL, 0);
+ if (!(p = strchr(p, ';')))
+ continue;
+ if (*++p)
+ amiga_fb_predefined[0].bits_per_pixel =
+ simple_strtoul(p, NULL, 0);
+ } else if (!strncmp(this_opt, "timing:", 7)) {
+ p = this_opt + 7;
+ if (*p != ';')
+ amiga_fb_predefined[0].left_margin =
+ simple_strtoul(p, NULL, 0);
+ if (!(p = strchr(p, ';')))
+ continue;
+ if (*++p != ';')
+ amiga_fb_predefined[0].right_margin =
+ simple_strtoul(p, NULL, 0);
+ if (!(p = strchr(p, ';')))
+ continue;
+ if (*++p != ';')
+ amiga_fb_predefined[0].upper_margin =
+ simple_strtoul(p, NULL, 0);
+ if (!(p = strchr(p, ';')))
+ continue;
+ if (*++p)
+ amiga_fb_predefined[0].lower_margin =
+ simple_strtoul(p, NULL, 0);
+ } else if (!strncmp(this_opt, "sync:", 5)) {
+ p = this_opt + 5;
+ if (*p != ';')
+ amiga_fb_predefined[0].hsync_len =
+ simple_strtoul(p, NULL, 0);
+ if (!(p = strchr(p, ';')))
+ continue;
+ if (*++p)
+ amiga_fb_predefined[0].vsync_len =
+ simple_strtoul(p, NULL, 0);
+ } else
+ get_video_mode(this_opt);
}
-}
+ if (min_fstrt < 48)
+ min_fstrt = 48;
-static void mono_amifb_interrupt(int irq, struct pt_regs *fp, void *data)
-{
- register struct display *p = disp;
-
- static ushort cursorcount = 0;
- static ushort cursorstate = 0;
+ if (*mcap_spec) {
+ char *p;
+ int vmin, vmax, hmin, hmax;
- /* I *think* that you should only change display lists on long frame.
- * At least it goes awfully peculiar on my A500 without the following
- * test. Not really in a position to test this hypothesis, so sorry
- * for the slow scrolling, all you flicker-fixed souls
+ /* Format for monitor capabilities is: <Vmin>;<Vmax>;<Hmin>;<Hmax>
+ * <V*> vertical freq. in Hz
+ * <H*> horizontal freq. in kHz
*/
- if (!(mono_current_par.bplcon0 & BPC0_LACE) || (custom.vposr & 0x8000)) {
- if (mono_current_par.scroll_latch || mono_current_par.cursor_latch)
- mono_build_cursor(p);
-
- if (mono_current_par.scroll_latch)
- if (mono_current_par.bplcon0 & BPC0_LACE) {
- mono_build_clist_dyn(p, mono_current_par.coplist1dyn, 0);
- mono_build_clist_dyn(p, mono_current_par.coplist2dyn, 1);
- } else
- mono_build_clist_dyn(p, mono_current_par.coplist1dyn, 0);
- mono_current_par.scroll_latch = 0;
- mono_current_par.cursor_latch = 0;
- }
-
- if (!(custom.potgor & (1<<10)))
- mono_vblank.right_count++;
-
- if (mono_current_par.cursor_visible) {
- if (mono_current_par.cursor_flash) {
- if (cursorcount)
- cursorcount--;
- else {
- cursorcount = CRSR_RATE;
- if ((cursorstate = !cursorstate))
- custom.dmacon = DMAF_SETCLR | DMAF_SPRITE;
- else
- custom.dmacon = DMAF_SPRITE;
- }
- }
- } else
- custom.dmacon = DMAF_SPRITE;
-
- if (mono_do_blank) {
- custom.dmacon = DMAF_RASTER | DMAF_SPRITE;
- custom.color[0] = 0;
- if (boot_info.bi_amiga.chipset == CS_AGA) {
- /* Fill in the LSB of the 24 bit color palette */
- /* Must happen after MSB */
- custom.bplcon3 = mono_save_bplcon3 | BPC3_LOCT;
- custom.color[0]= 0;
- custom.bplcon3 = mono_save_bplcon3;
- }
- mono_do_blank = 0;
- }
-
- if (mono_do_unblank) {
- if (mono_current_par.cursor_visible)
- custom.dmacon = DMAF_SETCLR | DMAF_RASTER | DMAF_SPRITE;
- else
- custom.dmacon = DMAF_SETCLR | DMAF_RASTER;
- custom.color[0] = COLOR_MSB(mono_current_par.bgcol);
- if (boot_info.bi_amiga.chipset == CS_AGA) {
- /* Fill in the LSB of the 24 bit color palette */
- /* Must happen after MSB */
- custom.bplcon3 = mono_save_bplcon3 | BPC3_LOCT;
- custom.color[0] = COLOR_LSB(mono_current_par.bgcol);
- custom.bplcon3 = mono_save_bplcon3;
- }
- /* color[0] is set to mono_ecs_color_zero under ECS */
- if (boot_info.bi_amiga.chipset == CS_ECS && mono_current_par.bplcon0 & BPC0_ECSENA) {
- custom.color[0] = mono_ecs_color_zero;
- }
- mono_do_unblank = 0;
+ if (!(p = strtoke(mcap_spec, ";")) || !*p)
+ goto cap_invalid;
+ vmin = simple_strtoul(p, NULL, 10);
+ if (vmin <= 0)
+ goto cap_invalid;
+ if (!(p = strtoke(NULL, ";")) || !*p)
+ goto cap_invalid;
+ vmax = simple_strtoul(p, NULL, 10);
+ if (vmax <= 0 || vmax <= vmin)
+ goto cap_invalid;
+ if (!(p = strtoke(NULL, ";")) || !*p)
+ goto cap_invalid;
+ hmin = 1000 * simple_strtoul(p, NULL, 10);
+ if (hmin <= 0)
+ goto cap_invalid;
+ if (!(p = strtoke(NULL, "")) || !*p)
+ goto cap_invalid;
+ hmax = 1000 * simple_strtoul(p, NULL, 10);
+ if (hmax <= 0 || hmax <= hmin)
+ goto cap_invalid;
+
+ vfmin = vmin;
+ vfmax = vmax;
+ hfmin = hmin;
+ hfmax = hmax;
+cap_invalid:
+ ;
}
-
- mono_vblank.done = 1;
}
-
-static int mono_amiga_fb_get_fix(struct fb_fix_screeninfo *fix, int con)
-{
- int i;
-
- strcpy(fix->id, mono_current_par.geometry->modename);
- fix->smem_start = mono_current_par.smem_start;
- fix->smem_len = mono_current_par.smem_len;
-
/*
- * Only monochrome bitmap at the moment
+ * Get the Fixed Part of the Display
*/
- fix->type = FB_TYPE_PACKED_PIXELS;
-
- fix->type_aux = 0;
- if (mono_amifb_inverse)
- fix->visual = FB_VISUAL_MONO10;
- else
- fix->visual = FB_VISUAL_MONO01;
-
- fix->xpanstep = 0;
- fix->ypanstep = 0;
- fix->ywrapstep = 1;
-
- fix->line_length = 0;
- for (i = 0; i < arraysize(fix->reserved); i++)
- fix->reserved[i] = 0;
- return(0);
-}
-
-
-static int mono_amiga_fb_get_var(struct fb_var_screeninfo *var, int con)
+static int amiga_fb_get_fix(struct fb_fix_screeninfo *fix, int con)
{
- int i;
-
- var->xres = mono_current_par.geometry->scr_width;
- var->yres = mono_current_par.geometry->scr_height;
- var->xres_virtual = var->xres;
- var->yres_virtual = var->yres;
- var->xoffset = 0;
- var->yoffset = 0;
+ struct amiga_fb_par par;
- var->bits_per_pixel = mono_current_par.geometry->scr_depth;
- var->grayscale = 0;
+ if (con == -1)
+ ami_get_par(&par);
+ else {
+ int err;
- if (boot_info.bi_amiga.chipset == CS_AGA) {
- var->red.offset = 0;
- var->red.length = 8;
- var->red.msb_right = 0;
- var->green = var->red;
- var->blue = var->red;
- } else {
- var->red.offset = 0;
- var->red.length = 4;
- var->red.msb_right = 0;
- var->green = var->red;
- var->blue = var->red;
+ if ((err = ami_decode_var(&disp[con].var, &par)))
+ return err;
}
-
- var->nonstd = 0;
- var->activate = 0;
-
- var->width = -1;
- var->height = -1;
-
- var->accel = FB_ACCEL_NONE;
-
- var->pixclock = 35242;
- var->left_margin = (mono_current_par.geometry->hbstop-mono_current_par.geometry->hsstrt)*8;
- var->right_margin = (mono_current_par.geometry->hsstrt-mono_current_par.geometry->hbstrt)*8;
- var->upper_margin = (mono_current_par.geometry->vbstop-mono_current_par.geometry->vsstrt)*8;
- var->lower_margin = (mono_current_par.geometry->vsstrt-mono_current_par.geometry->vbstrt)*8;
- var->hsync_len = (mono_current_par.geometry->hsstop-mono_current_par.geometry->hsstrt)*8;
- var->vsync_len = (mono_current_par.geometry->vsstop-mono_current_par.geometry->vsstrt)*8;
- var->sync = 0;
- if (mono_current_par.geometry->bplcon0 & BPC0_LACE)
- var->vmode = FB_VMODE_INTERLACED;
- else if ((boot_info.bi_amiga.chipset == CS_AGA) && (mono_current_par.geometry->fmode & FMODE_BSCAN2))
- var->vmode = FB_VMODE_DOUBLE;
- else
- var->vmode = FB_VMODE_NONINTERLACED;
-
- for (i = 0; i < arraysize(var->reserved); i++)
- var->reserved[i] = 0;
-
- return(0);
+ return ami_encode_fix(fix, &par);
}
+ /*
+ * Get the User Defined Part of the Display
+ */
-static void mono_amiga_fb_set_disp(int con)
+static int amiga_fb_get_var(struct fb_var_screeninfo *var, int con)
{
- struct fb_fix_screeninfo fix;
+ int err = 0;
- mono_amiga_fb_get_fix(&fix, con);
- if (con == -1)
- con = 0;
- disp[con].screen_base = (u_char *)fix.smem_start;
- disp[con].visual = fix.visual;
- disp[con].type = fix.type;
- disp[con].type_aux = fix.type_aux;
- disp[con].ypanstep = fix.ypanstep;
- disp[con].ywrapstep = fix.ywrapstep;
- disp[con].line_length = fix.line_length;
- disp[con].can_soft_blank = 1;
- disp[con].inverse = mono_amifb_inverse;
-}
+ if (con == -1) {
+ struct amiga_fb_par par;
+ ami_get_par(&par);
+ err = ami_encode_var(var, &par);
+ } else
+ *var = disp[con].var;
+ return err;
+}
-static int mono_amiga_fb_set_var(struct fb_var_screeninfo *var, int con)
-{
/*
- * Not yet implemented
+ * Set the User Defined Part of the Display
*/
- return 0; /* The X server needs this */
- return(-EINVAL);
-}
-
-
-static short mono_red_normal[] = {
- ((BG_COLOR & 0xff0000)>>8) | ((BG_COLOR & 0xff0000)>>16),
- ((FG_COLOR & 0xff0000)>>8) | ((FG_COLOR & 0xff0000)>>16)
-};
-static short mono_green_normal[] = {
- ((BG_COLOR & 0x00ff00)) | ((BG_COLOR & 0x00ff00)>>8),
- ((FG_COLOR & 0x00ff00)) | ((FG_COLOR & 0x00ff00)>>8)
-};
-static short mono_blue_normal[] = {
- ((BG_COLOR & 0x0000ff)<<8) | ((BG_COLOR & 0x0000ff)),
- ((FG_COLOR & 0x0000ff)<<8) | ((FG_COLOR & 0x0000ff))
-};
-static short mono_red_inverse[] = {
- ((BG_COLOR_INV & 0xff0000)>>8) | ((BG_COLOR_INV & 0xff0000)>>16),
- ((FG_COLOR_INV & 0xff0000)>>8) | ((FG_COLOR_INV & 0xff0000)>>16)
-};
-static short mono_green_inverse[] = {
- ((BG_COLOR_INV & 0x00ff00)) | ((BG_COLOR_INV & 0x00ff00)>>8),
- ((FG_COLOR_INV & 0x00ff00)) | ((FG_COLOR_INV & 0x00ff00)>>8)
-};
-static short mono_blue_inverse[] = {
- ((BG_COLOR_INV & 0x0000ff)<<8) | ((BG_COLOR_INV & 0x0000ff)),
- ((FG_COLOR_INV & 0x0000ff)<<8) | ((FG_COLOR & 0x0000ff))
-};
-
-static struct fb_cmap mono_default_cmap_normal = { 0, 2, mono_red_normal, mono_green_normal, mono_blue_normal, NULL };
-static struct fb_cmap mono_default_cmap_inverse = { 0, 2, mono_red_inverse, mono_green_inverse, mono_blue_inverse, NULL };
-
-static int mono_amiga_fb_get_cmap(struct fb_cmap *cmap, int kspc, int con)
+static int amiga_fb_set_var(struct fb_var_screeninfo *var, int con)
{
- int i, start;
- unsigned short *red, *green, *blue, *transp;
- unsigned int hred, hgreen, hblue, htransp;
- struct fb_cmap *def_cmap;
+ int err, activate = var->activate;
+ int oldxres, oldyres, oldvxres, oldvyres, oldbpp;
+ struct amiga_fb_par par;
- red = cmap->red;
- green = cmap->green;
- blue = cmap->blue;
- transp = cmap->transp;
- start = cmap->start;
- if (start < 0)
- return(-EINVAL);
- if (mono_amifb_inverse)
- def_cmap = &mono_default_cmap_inverse;
- else
- def_cmap = &mono_default_cmap_normal;
+ /*
+ * FB_VMODE_CONUPDATE and FB_VMODE_SMOOTH_XPAN are equal!
+ * as FB_VMODE_SMOOTH_XPAN is only used internally
+ */
- for (i = 0; i < cmap->len; i++) {
- if (i < def_cmap->len) {
- hred = def_cmap->red[i];
- hgreen = def_cmap->green[i];
- hblue = def_cmap->blue[i];
- if (def_cmap->transp)
- htransp = def_cmap->transp[i];
- else
- htransp = 0;
- } else
- hred = hgreen = hblue = htransp = 0;
- if (kspc) {
- *red = hred;
- *green = hgreen;
- *blue = hblue;
- if (transp)
- *transp = htransp;
- } else {
- put_fs_word(hred, red);
- put_fs_word(hgreen, green);
- put_fs_word(hblue, blue);
- if (transp)
- put_fs_word(htransp, transp);
+ if (var->vmode & FB_VMODE_CONUPDATE) {
+ var->vmode |= FB_VMODE_YWRAP;
+ var->xoffset = disp[con].var.xoffset;
+ var->yoffset = disp[con].var.yoffset;
+ }
+ if ((err = ami_decode_var(var, &par)))
+ return err;
+ ami_encode_var(var, &par);
+ if ((activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) {
+ oldxres = disp[con].var.xres;
+ oldyres = disp[con].var.yres;
+ oldvxres = disp[con].var.xres_virtual;
+ oldvyres = disp[con].var.yres_virtual;
+ oldbpp = disp[con].var.bits_per_pixel;
+ disp[con].var = *var;
+ if (oldxres != var->xres || oldyres != var->yres ||
+ oldvxres != var->xres_virtual || oldvyres != var->yres_virtual ||
+ oldbpp != var->bits_per_pixel) {
+ struct fb_fix_screeninfo fix;
+
+ ami_encode_fix(&fix, &par);
+ disp[con].screen_base = (u_char *)fix.smem_start;
+ disp[con].visual = fix.visual;
+ disp[con].type = fix.type;
+ disp[con].type_aux = fix.type_aux;
+ disp[con].ypanstep = fix.ypanstep;
+ disp[con].ywrapstep = fix.ywrapstep;
+ disp[con].line_length = fix.line_length;
+ disp[con].can_soft_blank = 1;
+ disp[con].inverse = amifb_inverse;
+ if (fb_info.changevar)
+ (*fb_info.changevar)(con);
}
- red++;
- green++;
- blue++;
- if (transp)
- transp++;
+ if (oldbpp != var->bits_per_pixel) {
+ if ((err = alloc_cmap(&disp[con].cmap, 0, 0)))
+ return err;
+ do_install_cmap(con);
+ }
+ if (con == currcon)
+ ami_set_var(&disp[con].var);
}
- return(0);
+ return 0;
}
-
-static int mono_amiga_fb_set_cmap(struct fb_cmap *cmap, int kspc, int con)
-{
- /*
- * Not yet implemented
- */
- return(-EINVAL);
-}
-
-
-static int mono_amiga_fb_pan_display(struct fb_var_screeninfo *var, int con)
-{
/*
- * Not yet implemented
+ * Pan or Wrap the Display
+ *
+ * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag
*/
- return(-EINVAL);
-}
-
-
-static int mono_amiga_fb_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
- unsigned long arg, int con)
-{
- return(-EINVAL);
-}
-
-static struct fb_ops mono_amiga_fb_ops = {
- mono_amiga_fb_get_fix, mono_amiga_fb_get_var, mono_amiga_fb_set_var, mono_amiga_fb_get_cmap,
- mono_amiga_fb_set_cmap, mono_amiga_fb_pan_display, mono_amiga_fb_ioctl
-};
-
-static int mono_amifb_switch (int con)
-{
- mono_current_par.y_wrap = disp[con].var.yoffset;
- mono_current_par.cursor_latch = 1;
- mono_current_par.scroll_latch = 1;
- return(0);
-}
-
-
-static int mono_amifb_updatevar(int con)
+static int amiga_fb_pan_display(struct fb_var_screeninfo *var, int con)
{
- mono_current_par.y_wrap = disp[con].var.yoffset;
- mono_current_par.cursor_latch = 1;
- mono_current_par.scroll_latch = 1;
- return(0);
+ if (var->vmode & FB_VMODE_YWRAP) {
+ if (var->yoffset<0 || var->yoffset >= disp[con].var.yres_virtual || var->xoffset)
+ return -EINVAL;
+ } else {
+ /*
+ * TODO: There will be problems when xpan!=1, so some columns
+ * on the right side will never be seen
+ */
+ if (var->xoffset+disp[con].var.xres > upx(16<<maxfmode, disp[con].var.xres_virtual) ||
+ var->yoffset+disp[con].var.yres > disp[con].var.yres_virtual)
+ return -EINVAL;
+ }
+ if (con == currcon)
+ ami_pan_var(var);
+ disp[con].var.xoffset = var->xoffset;
+ disp[con].var.yoffset = var->yoffset;
+ if (var->vmode & FB_VMODE_YWRAP)
+ disp[con].var.vmode |= FB_VMODE_YWRAP;
+ else
+ disp[con].var.vmode &= ~FB_VMODE_YWRAP;
+ return 0;
}
+ /*
+ * Get the Colormap
+ */
-static void mono_amifb_blank(int blank)
+static int amiga_fb_get_cmap(struct fb_cmap *cmap, int kspc, int con)
{
- if (blank)
- mono_do_blank = 1;
+ if (con == currcon) /* current console? */
+ return do_fb_get_cmap(cmap, &disp[con].var, kspc);
+ else if (disp[con].cmap.len) /* non default colormap? */
+ copy_cmap(&disp[con].cmap, cmap, kspc ? 0 : 2);
else
- mono_do_unblank = 1;
+ copy_cmap(get_default_colormap(disp[con].var.bits_per_pixel),
+ cmap, kspc ? 0 : 2);
+ return 0;
}
+ /*
+ * Set the Colormap
+ */
-static struct fb_info *mono_amiga_fb_init(long *mem_start)
+static int amiga_fb_set_cmap(struct fb_cmap *cmap, int kspc, int con)
{
- int mode = mono_amifb_mode;
- ulong model;
- int inverse_video = mono_amifb_inverse;
int err;
- err=register_framebuffer("Amiga Builtin", &node, &mono_amiga_fb_ops, mono_num_mono_amiga_fb_predefined,
- mono_mono_amiga_fb_predefined);
-
- model = boot_info.bi_un.bi_ami.model;
- if (mode == -1)
- if (boot_info.bi_amiga.chipset == CS_AGA)
- mode = AGA_DEFMODE;
- else if (model == AMI_3000)
- mode = boot_info.bi_un.bi_ami.vblank == 50 ? OCS_PAL_3000_DEFMODE : OCS_NTSC_3000_DEFMODE;
- else
- mode = boot_info.bi_un.bi_ami.vblank == 50 ? OCS_PAL_LOWEND_DEFMODE : OCS_NTSC_LOWEND_DEFMODE;
-
- mono_init_vblank();
- mono_display_init(disp, &mono_modes[mode], inverse_video);
- if (!add_isr(IRQ_AMIGA_VERTB, mono_amifb_interrupt, 0, NULL, "frame buffer"))
- panic("Couldn't add vblank interrupt");
-
- mono_amiga_fb_get_var(&disp[0].var, 0);
- if (mono_amifb_inverse)
- disp[0].cmap = mono_default_cmap_inverse;
+ if (!disp[con].cmap.len) { /* no colormap allocated? */
+ if ((err = alloc_cmap(&disp[con].cmap,
+ 1<<disp[con].var.bits_per_pixel, 0)))
+ return err;
+ }
+ if (con == currcon) /* current console? */
+ return do_fb_set_cmap(cmap, &disp[con].var, kspc);
else
- disp[0].cmap = mono_default_cmap_normal;
- mono_amiga_fb_set_disp(-1);
-
- strcpy(fb_info.modename, "Amiga Builtin ");
- fb_info.disp = disp;
- fb_info.switch_con = &mono_amifb_switch;
- fb_info.updatevar = &mono_amifb_updatevar;
- fb_info.blank = &mono_amifb_blank;
- strcat(fb_info.modename, mono_modes[mode].modename);
-
- return(&fb_info);
+ copy_cmap(cmap, &disp[con].cmap, kspc ? 0 : 1);
+ return 0;
}
-#endif /* USE_MONO_AMIFB_IF_NON_AGA */
-
-/* -------------------- OCS specific routines ------------------------------- */
-
-
-#ifdef CONFIG_AMIFB_OCS
- /*
- * Initialization
- *
- * Allocate the required chip memory.
- * Set the default video mode for this chipset. If a video mode was
- * specified on the command line, it will override the default mode.
- */
+ /*
+ * Amiga Frame Buffer Specific ioctls
+ */
-static int ocs_init(void)
+static int amiga_fb_ioctl(struct inode *inode, struct file *file,
+ u_int cmd, u_long arg, int con)
{
- u_long p;
-
- /*
- * Disable Display DMA
- */
-
- custom.dmacon = DMAF_ALL | DMAF_MASTER;
-
- /*
- * Set the Default Video Mode
- */
-
- if (!amifb_mode)
- amifb_mode = get_video_mode(boot_info.bi_un.bi_ami.vblank == 50 ?
- DEFMODE_PAL : DEFMODE_NTSC);
-
- /*
- * Allocate Chip RAM Structures
- */
-
- videomemorysize = VIDEOMEMSIZE_OCS;
+ int i;
+ switch (cmd) {
+ case FBIOGET_FCURSORINFO : {
+ struct fb_fix_cursorinfo crsrfix;
+
+ i = verify_area(VERIFY_WRITE, (void *)arg, sizeof(crsrfix));
+ if (!i) {
+ i = amiga_fb_get_fix_cursorinfo(&crsrfix, con);
+ memcpy_tofs((void *)arg, &crsrfix, sizeof(crsrfix));
+ }
+ return i;
+ }
+ case FBIOGET_VCURSORINFO : {
+ struct fb_var_cursorinfo crsrvar;
- ...
- ...
- ...
+ i = verify_area(VERIFY_WRITE, (void *)arg, sizeof(crsrvar));
+ if (!i) {
+ i = amiga_fb_get_var_cursorinfo(&crsrvar,
+ ((struct fb_var_cursorinfo *)arg)->data, con);
+ memcpy_tofs((void *)arg, &crsrvar, sizeof(crsrvar));
+ }
+ return i;
+ }
+ case FBIOPUT_VCURSORINFO : {
+ struct fb_var_cursorinfo crsrvar;
+ i = verify_area(VERIFY_READ, (void *)arg, sizeof(crsrvar));
+ if (!i) {
+ memcpy_fromfs(&crsrvar, (void *)arg, sizeof(crsrvar));
+ i = amiga_fb_set_var_cursorinfo(&crsrvar,
+ ((struct fb_var_cursorinfo *)arg)->data, con);
+ }
+ return i;
+ }
+ case FBIOGET_CURSORSTATE : {
+ struct fb_cursorstate crsrstate;
- /*
- * Enable Display DMA
- */
+ i = verify_area(VERIFY_WRITE, (void *)arg, sizeof(crsrstate));
+ if (!i) {
+ i = amiga_fb_get_cursorstate(&crsrstate, con);
+ memcpy_tofs((void *)arg, &crsrstate, sizeof(crsrstate));
+ }
+ return i;
+ }
+ case FBIOPUT_CURSORSTATE : {
+ struct fb_cursorstate crsrstate;
- custom.dmacon = DMAF_SETCLR | DMAF_MASTER | DMAF_RASTER | DMAF_COPPER |
- DMAF_SPRITE;
+ i = verify_area(VERIFY_READ, (void *)arg, sizeof(crsrstate));
+ if (!i) {
+ memcpy_fromfs(&crsrstate, (void *)arg, sizeof(crsrstate));
+ i = amiga_fb_set_cursorstate(&crsrstate, con);
+ }
+ return i;
+ }
+#ifdef DEBUG
+ case FBCMD_GET_CURRENTPAR : {
+ struct amiga_fb_par par;
+
+ i = verify_area(VERIFY_WRITE, (void *)arg, sizeof(struct amiga_fb_par));
+ if (!i) {
+ ami_get_par(&par);
+ memcpy_tofs((void *)arg, &par, sizeof(struct amiga_fb_par));
+ }
+ return i;
+ }
+ case FBCMD_SET_CURRENTPAR : {
+ struct amiga_fb_par par;
- return(0);
+ i = verify_area(VERIFY_READ, (void *)arg, sizeof(struct amiga_fb_par));
+ if (!i) {
+ memcpy_fromfs(&par, (void *)arg, sizeof(struct amiga_fb_par));
+ ami_set_par(&par);
+ }
+ return i;
+ }
+#endif */ DEBUG */
+ }
+ return -EINVAL;
}
-#endif /* CONFIG_AMIFB_OCS */
+ /*
+ * Hardware Cursor
+ */
-/* -------------------- ECS specific routines ------------------------------- */
-
-
-#ifdef CONFIG_AMIFB_ECS
- /*
- * Initialization
- *
- * Allocate the required chip memory.
- * Set the default video mode for this chipset. If a video mode was
- * specified on the command line, it will override the default mode.
- */
-
-static int ecs_init(void)
+static int amiga_fb_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix, int con)
{
- u_long p;
-
- /*
- * Disable Display DMA
- */
-
- custom.dmacon = DMAF_ALL | DMAF_MASTER;
-
- /*
- * Set the Default Video Mode
- */
-
- if (!amifb_mode)
- if (AMIGAHW_PRESENT(AMBER_FF))
- amifb_mode = get_video_mode(boot_info.bi_un.bi_ami.vblank == 50 ?
- DEFMODE_AMBER_PAL : DEFMODE_AMBER_NTSC);
- else
- amifb_mode = get_video_mode(boot_info.bi_un.bi_ami.vblank == 50 ?
- DEFMODE_PAL : DEFMODE_NTSC);
-
- /*
- * Allocate Chip RAM Structures
- */
-
- if (boot_info.bi_amiga.chip_size > 1048576)
- videomemorysize = VIDEOMEMSIZE_ECS_2M;
- else
- videomemorysize = VIDEOMEMSIZE_ECS_1M;
-
-
- ...
- ...
- ...
-
-
- /*
- * Enable Display DMA
- */
-
- custom.dmacon = DMAF_SETCLR | DMAF_MASTER | DMAF_RASTER | DMAF_COPPER |
- DMAF_SPRITE;
-
- return(0);
-}
-#endif /* CONFIG_AMIFB_ECS */
-
-
-/* -------------------- AGA specific routines ------------------------------- */
-
-
-#ifdef CONFIG_AMIFB_AGA
- /*
- * Macros for the conversion from real world values to hardware register
- * values (and vice versa).
- *
- * This helps us to keep our attention on the real stuff...
- *
- * Hardware limits:
- *
- * parameter min max step
- * --------- --- ---- ----
- * diwstrt_h 0 2047 1
- * diwstrt_v 0 2047 1
- * diwstop_h 0 2047 1
- * diwstop_v 0 2047 1
- *
- * ddfstrt 0 2032 16
- * ddfstop 0 2032 16
- *
- * htotal 8 2048 8
- * hsstrt 0 2040 8
- * hsstop 0 2040 8
- * vtotal 1 2048 1
- * vsstrt 0 2047 1
- * vsstop 0 2047 1
- * hcenter 0 2040 8
- *
- * hbstrt 0 2047 1
- * hbstop 0 2047 1
- * vbstrt 0 2047 1
- * vbstop 0 2047 1
- *
- * Horizontal values are in 35 ns (SHRES) pixels
- * Vertical values are in scanlines
- */
-
-/* bplcon1 (smooth scrolling) */
-
-#define hscroll2hw(hscroll) \
- (((hscroll)<<12 & 0x3000) | ((hscroll)<<8 & 0xc300) | \
- ((hscroll)<<4 & 0x0c00) | ((hscroll)<<2 & 0x00f0) | ((hscroll)>>2 & 0x000f))
-
-#define hw2hscroll(hscroll) \
- (((hscroll)>>8 & 0x00c3) | ((hscroll)<<2 & 0x003c))
-
-/* diwstrt/diwstop/diwhigh (visible display window) */
-
-#define diwstrt2hw(diwstrt_h, diwstrt_v) \
- (((diwstrt_v)<<8 & 0xff00) | ((diwstrt_h)>>2 & 0x00ff))
-#define diwstop2hw(distop_h, diwstop_v) \
- (((diwstop_v)<<8 & 0xff00) | ((diwstop_h)>>2 & 0x00ff))
-#define diw2hw_high(diwstrt_h, diwstrt_v, distop_h, diwstop_v) \
- (((diwstop_h)<<3 & 0x2000) | ((diwstop_h)<<11 & 0x1800) | \
- ((diwstop_v) & 0x0700) | ((diwstrt_h)>>5 & 0x0020) | \
- ((diwstrt_h)<<3 & 0x0018) | ((diwstrt_v)>>8 & 0x0007))
-
-#define hw2diwstrt_h(diwstrt, diwhigh) \
- (((diwhigh)<<5 & 0x0400) | ((diwstrt)<<2 & 0x03fc) | ((diwhigh)>>3 & 0x0003))
-#define hw2diwstrt_v(diwstrt, diwhigh) \
- (((diwhigh)<<8 & 0x0700) | ((diwstrt)>>8 & 0x00ff))
-#define hw2diwstop_h(diwstop, diwhigh) \
- (((diwhigh)>>3 & 0x0400) | ((diwstop)<<2 & 0x03fc) | \
- ((diwhigh)>>11 & 0x0003))
-#define hw2diwstop_v(diwstop, diwhigh) \
- (((diwhigh) & 0x0700) | ((diwstop)>>8 & 0x00ff))
-
-/* ddfstrt/ddfstop (display DMA) */
-
-#define ddfstrt2hw(ddfstrt) (div8(ddfstrt) & 0x00fe)
-#define ddfstop2hw(ddfstop) (div8(ddfstop) & 0x00fe)
-
-#define hw2ddfstrt(ddfstrt) ((ddfstrt)<<3)
-#define hw2ddfstop(ddfstop) ((ddfstop)<<3)
-
-/* hsstrt/hsstop/htotal/vsstrt/vsstop/vtotal (sync timings) */
-
-#define hsstrt2hw(hsstrt) (div8(hsstrt))
-#define hsstop2hw(hsstop) (div8(hsstop))
-#define htotal2hw(htotal) (div8(htotal)-1)
-#define vsstrt2hw(vsstrt) (vsstrt)
-#define vsstop2hw(vsstop) (vsstop)
-#define vtotal2hw(vtotal) ((vtotal)-1)
-
-#define hw2hsstrt(hsstrt) ((hsstrt)<<3)
-#define hw2hsstop(hsstop) ((hsstop)<<3)
-#define hw2htotal(htotal) (((htotal)+1)<<3)
-#define hw2vsstrt(vsstrt) (vsstrt)
-#define hw2vsstop(vsstop) (vsstop)
-#define hw2vtotal(vtotal) ((vtotal)+1)
-
-/* hbstrt/hbstop/vbstrt/vbstop (blanking timings) */
-
-#define hbstrt2hw(hbstrt) (((hbstrt)<<8 & 0x0700) | ((hbstrt)>>3 & 0x00ff))
-#define hbstop2hw(hbstop) (((hbstop)<<8 & 0x0700) | ((hbstop)>>3 & 0x00ff))
-#define vbstrt2hw(vbstrt) (vbstrt)
-#define vbstop2hw(vbstop) (vbstop)
-
-#define hw2hbstrt(hbstrt) (((hbstrt)<<3 & 0x07f8) | ((hbstrt)>>8 & 0x0007))
-#define hw2hbstop(hbstop) (((hbstop)<<3 & 0x07f8) | ((hbstop)>>8 & 0x0007))
-#define hw2vbstrt(vbstrt) (vbstrt)
-#define hw2vbstop(vbstop) (vbstop)
-
-/* color */
-
-#define rgb2hw_high(red, green, blue) \
- (((red)<<4 & 0xf00) | ((green) & 0x0f0) | ((blue)>>4 & 0x00f))
-#define rgb2hw_low(red, green, blue) \
- (((red)<<8 & 0xf00) | ((green)<<4 & 0x0f0) | ((blue) & 0x00f))
-
-#define hw2red(high, low) (((high)>>4 & 0xf0) | ((low)>>8 & 0x0f))
-#define hw2green(high, low) (((high) & 0xf0) | ((low)>>4 & 0x0f))
-#define hw2blue(high, low) (((high)<<4 & 0xf0) | ((low) & 0x0f))
-
-/* sprpos/sprctl (sprite positioning) */
-
-#define spr2hw_pos(start_v, start_h) \
- (((start_v)<<8&0xff00) | ((start_h)>>3&0x00ff))
-#define spr2hw_ctl(start_v, start_h, stop_v) \
- (((stop_v)<<8&0xff00) | ((start_v)>>3&0x0040) | ((stop_v)>>4&0x0020) | \
- ((start_h)<<3&0x0018) | ((start_v)>>6&0x0004) | ((stop_v)>>7&0x0002) | \
- ((start_h)>>2&0x0001))
-
-
- /*
- * Hardware Cursor
- */
-
-struct aga_cursorsprite {
- u_short sprpos;
- u_short pad1[3];
- u_short sprctl;
- u_short pad2[3];
- union {
- struct {
- u_long data[64*4];
- u_long trailer[4];
- } nonlaced;
- struct {
- u_long data[32*4];
- u_long trailer[4];
- } laced;
- } u;
-};
-
-struct aga_dummysprite {
- u_short sprpos;
- u_short pad1[3];
- u_short sprctl;
- u_short pad2[3];
- u_long data[4];
- u_long trailer[4];
-};
-
+ return ami_get_fix_cursorinfo(fix, con);
+}
- /*
- * Pixel modes for Bitplanes and Sprites
- */
+static int amiga_fb_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data, int con)
+{
+ return ami_get_var_cursorinfo(var, data, con);
+}
-static u_short bplpixmode[3] = {
- BPC0_SHRES, /* 35 ns / 28 MHz */
- BPC0_HIRES, /* 70 ns / 14 MHz */
- 0 /* 140 ns / 7 MHz */
-};
+static int amiga_fb_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data, int con)
+{
+ return ami_set_var_cursorinfo(var, data, con);
+}
-static u_short sprpixmode[3] = {
- BPC3_SPRES1 | BPC3_SPRES0, /* 35 ns / 28 MHz */
- BPC3_SPRES1, /* 70 ns / 14 MHz */
- BPC3_SPRES0 /* 140 ns / 7 MHz */
-};
+static int amiga_fb_get_cursorstate(struct fb_cursorstate *state, int con)
+{
+ return ami_get_cursorstate(state, con);
+}
+static int amiga_fb_set_cursorstate(struct fb_cursorstate *state, int con)
+{
+ return ami_set_cursorstate(state, con);
+}
- /*
- * Initialization
- *
- * Allocate the required chip memory.
- * Set the default video mode for this chipset. If a video mode was
- * specified on the command line, it will override the default mode.
- */
+ /*
+ * Initialisation
+ */
-static int aga_init(void)
+struct fb_info *amiga_fb_init(long *mem_start)
{
- u_long p;
+ int err, tag, i;
+ u_long chipptr;
- /*
- * Disable Display DMA
- */
+ /*
+ * Check for a Graphics Board
+ */
- custom.dmacon = DMAF_ALL | DMAF_MASTER;
+#ifdef CONFIG_FB_CYBER
+ if (amifb_Cyber)
+ return Cyber_fb_init(mem_start);
+#endif /* CONFIG_FB_CYBER */
+#ifdef CONFIG_GSP_RESOLVER
+ if (amifb_resolver){
+ custom.dmacon = DMAF_MASTER | DMAF_RASTER | DMAF_COPPER |
+ DMAF_BLITTER | DMAF_SPRITE;
+ return NULL;
+ }
+#endif
- /*
- * Set the Default Video Mode
- */
+ /*
+ * Use the Builtin Chipset
+ */
- if (!amifb_mode)
- amifb_mode = get_video_mode(DEFMODE_AGA);
+ if (!AMIGAHW_PRESENT(AMI_VIDEO))
+ return NULL;
- /*
- * Allocate Chip RAM Structures
- */
+ custom.dmacon = DMAF_ALL | DMAF_MASTER;
- if (boot_info.bi_amiga.chip_size > 1048576)
- videomemorysize = VIDEOMEMSIZE_AGA_2M;
- else
- videomemorysize = VIDEOMEMSIZE_AGA_1M;
+ switch (boot_info.bi_amiga.chipset) {
+#ifdef CONFIG_AMIFB_OCS
+ case CS_OCS:
+ strcat(amiga_fb_name, "OCS");
+default_chipset:
+ chipset = TAG_OCS;
+ maxdepth[TAG_SHRES] = 0; /* OCS means no SHRES */
+ maxdepth[TAG_HIRES] = 4;
+ maxdepth[TAG_LORES] = 6;
+ maxfmode = TAG_FMODE_1;
+ if (!amifb_usermode) /* Set the Default Video Mode */
+ get_video_mode(boot_info.bi_un.bi_ami.vblank == 50 ?
+ DEFMODE_PAL : DEFMODE_NTSC);
+ videomemorysize = VIDEOMEMSIZE_OCS;
+ break;
+#endif /* CONFIG_AMIFB_OCS */
- p = chipalloc(videomemorysize+ /* Bitplanes */
- sizeof(struct clist_hdr)+ /* Copper Lists */
- 2*sizeof(struct clist_dyn)+
- 2*sizeof(struct aga_cursorsprite)+ /* Sprites */
- sizeof(struct aga_dummysprite));
+#ifdef CONFIG_AMIFB_ECS
+ case CS_ECS:
+ strcat(amiga_fb_name, "ECS");
+ chipset = TAG_ECS;
+ maxdepth[TAG_SHRES] = 2;
+ maxdepth[TAG_HIRES] = 4;
+ maxdepth[TAG_LORES] = 6;
+ maxfmode = TAG_FMODE_1;
+ if (!amifb_usermode) { /* Set the Default Video Mode */
+ if (AMIGAHW_PRESENT(AMBER_FF))
+ get_video_mode(boot_info.bi_un.bi_ami.vblank == 50 ?
+ DEFMODE_AMBER_PAL : DEFMODE_AMBER_NTSC);
+ else
+ get_video_mode(boot_info.bi_un.bi_ami.vblank == 50 ?
+ DEFMODE_PAL : DEFMODE_NTSC);
+ }
+ if (boot_info.bi_amiga.chip_size > 1048576)
+ videomemorysize = VIDEOMEMSIZE_ECS_2M;
+ else
+ videomemorysize = VIDEOMEMSIZE_ECS_1M;
+ break;
+#endif /* CONFIG_AMIFB_ECS */
- assignchunk(videomemory, u_long, p, videomemorysize);
- assignchunk(clist_hdr, struct clist_hdr *, p, sizeof(struct clist_hdr));
- assignchunk(clist_lof, struct clist_dyn *, p, sizeof(struct clist_dyn));
- assignchunk(clist_shf, struct clist_dyn *, p, sizeof(struct clist_dyn));
- assignchunk(lofsprite, u_long *, p, sizeof(struct aga_cursorsprite));
- assignchunk(shfsprite, u_long *, p, sizeof(struct aga_cursorsprite));
- assignchunk(dummysprite, u_long *, p, sizeof(struct aga_dummysprite));
+#ifdef CONFIG_AMIFB_AGA
+ case CS_AGA:
+ strcat(amiga_fb_name, "AGA");
+ chipset = TAG_AGA;
+ maxdepth[TAG_SHRES] = 8;
+ maxdepth[TAG_HIRES] = 8;
+ maxdepth[TAG_LORES] = 8;
+ maxfmode = TAG_FMODE_4;
+ if (!amifb_usermode) /* Set the Default Video Mode */
+ get_video_mode(DEFMODE_AGA);
+ if (boot_info.bi_amiga.chip_size > 1048576)
+ videomemorysize = VIDEOMEMSIZE_AGA_2M;
+ else
+ videomemorysize = VIDEOMEMSIZE_AGA_1M;
+ break;
+#endif /* CONFIG_AMIFB_AGA */
- /*
- * Make sure the Copper has something to do
- */
+ default:
+#ifdef CONFIG_AMIFB_OCS
+ printk("Unknown graphics chipset, defaulting to OCS\n");
+ strcat(amiga_fb_name, "Unknown");
+ goto default_chipset;
+#else /* CONFIG_AMIFB_OCS */
+ panic("Unknown graphics chipset, no default driver");
+#endif /* CONFIG_AMIFB_OCS */
+ break;
+ }
- aga_build_clist_hdr(clist_hdr);
+ /*
+ * Calculate the Pixel Clock Values for this Machine
+ */
- custom.cop1lc = (u_short *)ZTWO_PADDR(clist_hdr);
- custom.cop2lc = (u_short *)ZTWO_PADDR(&clist_hdr->wait_forever);
- custom.copjmp1 = 0;
+ pixclock[TAG_SHRES] = DIVUL(25E9, amiga_eclock); /* SHRES: 35 ns / 28 MHz */
+ pixclock[TAG_HIRES] = DIVUL(50E9, amiga_eclock); /* HIRES: 70 ns / 14 MHz */
+ pixclock[TAG_LORES] = DIVUL(100E9, amiga_eclock); /* LORES: 140 ns / 7 MHz */
- /*
- * Enable Display DMA
- */
+ /*
+ * Replace the Tag Values with the Real Pixel Clock Values
+ */
- custom.dmacon = DMAF_SETCLR | DMAF_MASTER | DMAF_RASTER | DMAF_COPPER |
- DMAF_SPRITE;
+ for (i = 0; i < NUM_PREDEF_MODES; i++) {
+ tag = amiga_fb_predefined[i].pixclock;
+ if (tag == TAG_SHRES || tag == TAG_HIRES || tag == TAG_LORES) {
+ amiga_fb_predefined[i].pixclock = pixclock[tag];
+ if (amiga_fb_predefined[i].bits_per_pixel > maxdepth[tag])
+ amiga_fb_predefined[i].bits_per_pixel = maxdepth[tag];
+ }
+ }
- /*
- * These hardware register values will never be changed later
- */
+ err = register_framebuffer(amiga_fb_name, &node, &amiga_fb_ops,
+ NUM_TOTAL_MODES, amiga_fb_predefined);
+ if (err < 0)
+ panic("Cannot register frame buffer");
+
+ chipptr = chipalloc(videomemorysize+
+ SPRITEMEMSIZE+
+ DUMMYSPRITEMEMSIZE+
+ COPINITSIZE+
+ 4*COPLISTSIZE);
+
+ assignchunk(videomemory, u_long, chipptr, videomemorysize);
+ assignchunk(spritememory, u_long, chipptr, SPRITEMEMSIZE);
+ assignchunk(dummysprite, u_short *, chipptr, DUMMYSPRITEMEMSIZE);
+ assignchunk(copdisplay.init, copins *, chipptr, COPINITSIZE);
+ assignchunk(copdisplay.list[0][0], copins *, chipptr, COPLISTSIZE);
+ assignchunk(copdisplay.list[0][1], copins *, chipptr, COPLISTSIZE);
+ assignchunk(copdisplay.list[1][0], copins *, chipptr, COPLISTSIZE);
+ assignchunk(copdisplay.list[1][1], copins *, chipptr, COPLISTSIZE);
- custom.bplcon2 = BPC2_KILLEHB | BPC2_PF2P2 | BPC2_PF1P2;
- custom.bplcon4 = BPC4_ESPRM4 | BPC4_OSPRM4;
+ memset(dummysprite, 0, DUMMYSPRITEMEMSIZE);
- return(0);
-}
+ /*
+ * Enable Display DMA
+ */
+ custom.dmacon = DMAF_SETCLR | DMAF_MASTER | DMAF_RASTER | DMAF_COPPER |
+ DMAF_BLITTER | DMAF_SPRITE;
- /*
- * This function should fill in the `fix' structure based on the
- * values in the `par' structure.
- */
+ /*
+ * Make sure the Copper has something to do
+ */
-static int aga_encode_fix(struct fb_fix_screeninfo *fix,
- struct amiga_fb_par *par)
-{
- int i;
+ ami_init_copper();
- strcpy(fix->id, amiga_fb_name);
- fix->smem_start = videomemory;
- fix->smem_len = videomemorysize;
-
- if (amifb_ilbm) {
- fix->type = FB_TYPE_INTERLEAVED_PLANES;
- fix->type_aux = par->next_line;
- } else {
- fix->type = FB_TYPE_PLANES;
- fix->type_aux = 0;
- }
- fix->visual = FB_VISUAL_PSEUDOCOLOR;
-
- if (par->diwstrt_h >= 323)
- fix->xpanstep = 1;
- else
- fix->xpanstep = 64;
- fix->ypanstep = 1;
-
- if (hw2ddfstrt(par->ddfstrt) >= (par->bpp-1)*64)
- fix->ywrapstep = 1;
- else
- fix->ywrapstep = 0;
-
- fix->line_length = 0;
- for (i = 0; i < arraysize(fix->reserved); i++)
- fix->reserved[i] = 0;
-
- return(0);
-}
+ check_default_mode();
+ if (request_irq(IRQ3, amifb_interrupt, IRQ_FLG_LOCK,
+ "fb vertb handler", NULL))
+ panic("Couldn't add vblank interrupt\n");
+ ami_intena_vals[IRQ_IDX(IRQ_AMIGA_VERTB)] = IF_COPER;
+ ami_intena_vals[IRQ_IDX(IRQ_AMIGA_COPPER)] = 0;
+ custom.intena = IF_VERTB;
+ custom.intena = IF_SETCLR | IF_COPER;
- /*
- * Get the video params out of `var'. If a value doesn't fit, round
- * it up, if it's too big, return -EINVAL.
- */
+ strcpy(fb_info.modename, amiga_fb_name);
+ fb_info.changevar = NULL;
+ fb_info.disp = disp;
+ fb_info.switch_con = &amifbcon_switch;
+ fb_info.updatevar = &amifbcon_updatevar;
+ fb_info.blank = &amifbcon_blank;
-static int aga_decode_var(struct fb_var_screeninfo *var,
- struct amiga_fb_par *par)
-{
- u_short clk_shift, line_shift_incd;
- u_long upper, lower, hslen, vslen;
- int xres_n, yres_n, xoffset_n; /* normalized */
- u_long left_n, right_n, upper_n, lower_n, hslen_n, vslen_n; /* normalized */
- u_long diwstrt_h, diwstrt_v, diwstop_h, diwstop_v;
- u_long hsstrt, vsstrt, hsstop, vsstop, htotal, vtotal;
- u_long ddfmin, ddfmax, ddfstrt, ddfstop, hscroll;
- u_long hrate, vrate;
- u_short loopcnt = 0;
-
- /*
- * Find a matching Pixel Clock
- */
-
- for (clk_shift = 0; clk_shift < 3; clk_shift++)
- if (var->pixclock <= pixclock[clk_shift])
- break;
- if (clk_shift >= 3)
- return(-EINVAL);
- par->clk_shift = clk_shift;
-
- /*
- * Round up the Geometry Values (if necessary)
- */
-
- par->xres = max(var->xres, 64);
- par->yres = max(var->yres, 64);
- par->vxres = up64(max(var->xres_virtual, par->xres));
- par->vyres = max(var->yres_virtual, par->yres);
-
- par->bpp = var->bits_per_pixel;
- if (par->bpp > 8)
- return(-EINVAL);
-
- if (!var->nonstd) {
- if (par->bpp < 1)
- par->bpp = 1;
- } else if (var->nonstd == FB_NONSTD_HAM)
- par->bpp = par->bpp <= 6 ? 6 : 8;
- else
- return(-EINVAL);
-
- upper = var->upper_margin;
- lower = var->lower_margin;
- hslen = var->hsync_len;
- vslen = var->vsync_len;
-
- par->vmode = var->vmode;
- switch (par->vmode & FB_VMODE_MASK) {
- case FB_VMODE_NONINTERLACED:
- line_shift_incd = 1;
- break;
- case FB_VMODE_INTERLACED:
- line_shift_incd = 0;
- if (par->yres & 1)
- par->yres++; /* even */
- if (upper & 1)
- upper++; /* even */
- if (!(lower & 1))
- lower++; /* odd */
- if (vslen & 1)
- vslen++; /* even */
- break;
- case FB_VMODE_DOUBLE:
- line_shift_incd = 2;
- break;
- default:
- return(-EINVAL);
- break;
- }
-
- par->xoffset = var->xoffset;
- par->yoffset = var->yoffset;
- if (par->vmode & FB_VMODE_YWRAP) {
- if (par->xoffset || par->yoffset < 0 || par->yoffset >= par->yres)
- return(-EINVAL);
- } else {
- if (par->xoffset < 0 || par->xoffset+par->xres > par->vxres ||
- par->yoffset < 0 || par->yoffset+par->yres > par->vyres)
- return(-EINVAL);
- }
-
- if (var->sync & FB_SYNC_BROADCAST) {
- if (hslen || vslen)
- return(-EINVAL);
- } else {
- hslen = hslen < 1 ? 1 : hslen;
- vslen = vslen < 1 ? 1 : vslen;
- }
-
- /*
- * Check the Memory Requirements
- */
-
- if (par->vxres*par->vyres*par->bpp > videomemorysize<<3)
- return(-EINVAL);
-
- /*
- * Normalize all values:
- *
- * - horizontal: in 35 ns (SHRES) pixels
- * - vertical: in non-interlaced scanlines
- */
-
- xres_n = par->xres<<clk_shift;
- xoffset_n = par->xoffset<<clk_shift;
- yres_n = par->yres<<line_shift_incd>>1;
-
- left_n = var->left_margin<<clk_shift;
- right_n = var->right_margin<<clk_shift;
- hslen_n = hslen<<clk_shift;
- upper_n = upper<<line_shift_incd>>1;
- lower_n = lower<<line_shift_incd>>1;
- vslen_n = vslen<<line_shift_incd>>1;
-
- /*
- * Vertical and Horizontal Timings
- */
-
- par->bplcon3 = sprpixmode[clk_shift];
-aga_calculate_timings:
- if (var->sync & FB_SYNC_BROADCAST) {
- if (upper_n+yres_n+lower_n == PAL_WINDOW_V) {
- /* PAL video mode */
- diwstrt_v = PAL_DIWSTRT_V+upper_n;
- diwstop_v = diwstrt_v+yres_n;
- diwstrt_h = PAL_DIWSTRT_H+left_n;
- diwstop_h = diwstrt_h+xres_n+1;
- par->htotal = htotal2hw(PAL_HTOTAL);
- hrate = 15625;
- vrate = 50;
- par->beamcon0 = BMC0_PAL;
- } else if (upper_n+yres_n+lower_n == NTSC_WINDOW_V) {
- /* NTSC video mode */
- diwstrt_v = NTSC_DIWSTRT_V+upper_n;
- diwstop_v = diwstrt_v+yres_n;
- diwstrt_h = NTSC_DIWSTRT_H+left_n;
- diwstop_h = diwstrt_h+xres_n+1;
- par->htotal = htotal2hw(NTSC_HTOTAL);
- hrate = 15750;
- vrate = 60;
- par->beamcon0 = 0;
- } else
- return(-EINVAL);
- } else {
- /* Programmable video mode */
- vsstrt = lower_n;
- vsstop = vsstrt+vslen_n;
- diwstrt_v = vsstop+upper_n;
- diwstop_v = diwstrt_v+yres_n;
- vtotal = diwstop_v;
- hslen_n = up8(hslen_n);
- htotal = up8(left_n+xres_n+right_n+hslen_n);
- if (vtotal > 2048 || htotal > 2048)
- return(-EINVAL);
- right_n = htotal-left_n-xres_n-hslen_n;
- hsstrt = down8(right_n+4);
- hsstop = hsstrt+hslen_n;
- diwstop_h = htotal+hsstrt-right_n+1;
- diwstrt_h = diwstop_h-xres_n-1;
- hrate = (amiga_masterclock+htotal/2)/htotal;
- vrate = (amiga_masterclock+htotal*vtotal/2)/(htotal*vtotal);
- par->bplcon3 |= BPC3_BRDRBLNK | BPC3_EXTBLKEN;
- par->beamcon0 = BMC0_HARDDIS | BMC0_VARVBEN | BMC0_LOLDIS |
- BMC0_VARVSYEN | BMC0_VARHSYEN | BMC0_VARBEAMEN |
- BMC0_PAL | BMC0_VARCSYEN;
- if (var->sync & FB_SYNC_HOR_HIGH_ACT)
- par->beamcon0 |= BMC0_HSYTRUE;
- if (var->sync & FB_SYNC_VERT_HIGH_ACT)
- par->beamcon0 |= BMC0_VSYTRUE;
- if (var->sync & FB_SYNC_COMP_HIGH_ACT)
- par->beamcon0 |= BMC0_CSYTRUE;
- par->htotal = htotal2hw(htotal);
- par->hsstrt = hsstrt2hw(hsstrt);
- par->hsstop = hsstop2hw(hsstop);
- par->vtotal = vtotal2hw(vtotal);
- par->vsstrt = vsstrt2hw(vsstrt);
- par->vsstop = vsstop2hw(vsstop);
- par->hcenter = par->hsstrt+(par->htotal>>1);
- }
- par->diwstrt_v = diwstrt_v;
- par->diwstrt_h = diwstrt_h;
- par->crsr_x = 0;
- par->crsr_y = 0;
-
- /*
- * DMA Timings
- */
-
- ddfmin = down64(xoffset_n);
- ddfmax = up64(xoffset_n+xres_n);
- hscroll = diwstrt_h-68-mod64(xoffset_n);
- ddfstrt = down64(hscroll);
- if (ddfstrt < 128) {
- right_n += (128-hscroll);
- /* Prevent an infinite loop */
- if (loopcnt++)
- return(-EINVAL);
- goto aga_calculate_timings;
- }
- hscroll -= ddfstrt;
- ddfstop = ddfstrt+ddfmax-ddfmin-(64<<clk_shift);
-
- /*
- * Bitplane calculations
- */
-
- if (amifb_ilbm) {
- par->next_plane = div8(par->vxres);
- par->next_line = par->bpp*par->next_plane;
- } else {
- par->next_line = div8(par->vxres);
- par->next_plane = par->vyres*par->next_line;
- }
- par->bplpt0 = ZTWO_PADDR((u_long)videomemory+div8(ddfmin>>clk_shift)+
- par->yoffset*par->next_line);
- par->bpl1mod = par->next_line-div8((ddfmax-ddfmin)>>clk_shift);
- par->bpl2mod = par->bpl1mod;
-
- /*
- * Hardware Register Values
- */
-
- par->bplcon0 = BPC0_COLOR | BPC0_ECSENA | bplpixmode[clk_shift];
- if (par->bpp == 8)
- par->bplcon0 |= BPC0_BPU3;
- else
- par->bplcon0 |= par->bpp<<12;
- if (var->nonstd == FB_NONSTD_HAM)
- par->bplcon0 |= BPC0_HAM;
- if (var->sync & FB_SYNC_EXT)
- par->bplcon0 |= BPC0_ERSY;
- par->bplcon1 = hscroll2hw(hscroll);
- par->diwstrt = diwstrt2hw(diwstrt_h, diwstrt_v);
- par->diwstop = diwstop2hw(diwstop_h, diwstop_v);
- par->diwhigh = diw2hw_high(diwstrt_h, diwstrt_v, distop_h, diwstop_v);
- par->ddfstrt = ddfstrt2hw(ddfstrt);
- par->ddfstop = ddfstop2hw(ddfstop);
- par->fmode = FMODE_SPAGEM | FMODE_SPR32 | FMODE_BPAGEM | FMODE_BPL32;
-
- switch (par->vmode & FB_VMODE_MASK) {
- case FB_VMODE_INTERLACED:
- par->bpl1mod += par->next_line;
- par->bpl2mod += par->next_line;
- par->bplcon0 |= BPC0_LACE;
- break;
- case FB_VMODE_DOUBLE:
- par->bpl1mod -= par->next_line;
- par->fmode |= FMODE_SSCAN2 | FMODE_BSCAN2;
- break;
- }
-
- if (hrate < hfmin || hrate > hfmax || vrate < vfmin || vrate > vfmax)
- return(-EINVAL);
-
- return(0);
-}
-
-
- /*
- * Fill the `var' structure based on the values in `par' and maybe
- * other values read out of the hardware.
- */
+ amiga_fb_set_var(&amiga_fb_predefined[0], 0);
-static int aga_encode_var(struct fb_var_screeninfo *var,
- struct amiga_fb_par *par)
-{
- u_short clk_shift, line_shift_incd;
- u_long left, right, upper, lower, hslen, vslen;
- u_short diwstop_h, diwstop_v;
- u_short hsstrt, vsstrt, hsstop, vsstop, htotal;
- int i;
-
- var->xres = par->xres;
- var->yres = par->yres;
- var->xres_virtual = par->vxres;
- var->yres_virtual = par->vyres;
- var->xoffset = par->xoffset;
- var->yoffset = par->yoffset;
-
- var->bits_per_pixel = par->bpp;
- var->grayscale = 0;
-
- var->red.offset = 0;
- var->red.length = 8;
- var->red.msb_right = 0;
- var->blue = var->green = var->red;
- var->transp.offset = 0;
- var->transp.length = 0;
- var->transp.msb_right = 0;
-
- if (par->bplcon0 & BPC0_HAM)
- var->nonstd = FB_NONSTD_HAM;
- else
- var->nonstd = 0;
- var->activate = 0;
-
- var->height = -1;
- var->width = -1;
- var->accel = FB_ACCEL_NONE;
-
- clk_shift = par->clk_shift;
- var->pixclock = pixclock[clk_shift];
-
- diwstop_h = hw2diwstop_h(par->diwstop, par->diwhigh);
- if (par->beamcon0 & BMC0_VARBEAMEN) {
- hsstrt = hw2hsstrt(par->hsstrt);
- vsstrt = hw2vsstrt(par->vsstrt);
- hsstop = hw2hsstop(par->hsstop);
- vsstop = hw2vsstop(par->vsstop);
- htotal = hw2htotal(par->htotal);
- left = par->diwstrt_h-hsstop;
- right = htotal+hsstrt-diwstop_h+1;
- hslen = hsstop-hsstrt;
- upper = par->diwstrt_v-vsstop;
- lower = vsstrt;
- vslen = vsstop-vsstrt;
- var->sync = 0;
- } else {
- diwstop_v = hw2diwstop_v(par->diwstop, par->diwhigh);
- if (par->beamcon0 & BMC0_PAL) {
- left = par->diwstrt_h-PAL_DIWSTRT_H;
- right = PAL_DIWSTRT_H+PAL_WINDOW_H-diwstop_h+1;
- upper = par->diwstrt_v-PAL_DIWSTRT_V;
- lower = PAL_DIWSTRT_V+PAL_WINDOW_V-diwstop_v;
- } else {
- left = par->diwstrt_h-NTSC_DIWSTRT_H;
- right = NTSC_DIWSTRT_H+NTSC_WINDOW_H-diwstop_h;
- upper = par->diwstrt_v-NTSC_DIWSTRT_V;
- lower = NTSC_DIWSTRT_V+NTSC_WINDOW_V-diwstop_v;
- }
- hslen = 0;
- vslen = 0;
- var->sync = FB_SYNC_BROADCAST;
- }
-
- if (par->bplcon0 & BPC0_ERSY)
- var->sync |= FB_SYNC_EXT;
- if (par->beamcon0 & BMC0_HSYTRUE)
- var->sync |= FB_SYNC_HOR_HIGH_ACT;
- if (par->beamcon0 & BMC0_VSYTRUE)
- var->sync |= FB_SYNC_VERT_HIGH_ACT;
- if (par->beamcon0 & BMC0_CSYTRUE)
- var->sync |= FB_SYNC_COMP_HIGH_ACT;
-
- switch (par->vmode & FB_VMODE_MASK) {
- case FB_VMODE_NONINTERLACED:
- line_shift_incd = 1;
- break;
- case FB_VMODE_INTERLACED:
- line_shift_incd = 0;
- break;
- case FB_VMODE_DOUBLE:
- line_shift_incd = 2;
- break;
- }
-
- var->left_margin = left>>clk_shift;
- var->right_margin = right>>clk_shift;
- var->upper_margin = upper<<1>>line_shift_incd;
- var->lower_margin = lower<<1>>line_shift_incd;
- var->hsync_len = hslen>>clk_shift;
- var->vsync_len = vslen<<1>>line_shift_incd;
- var->vmode = par->vmode;
- for (i = 0; i < arraysize(var->reserved); i++)
- var->reserved[i] = 0;
-
- return(0);
-}
-
-
- /*
- * Read a single color register and split it into
- * colors/transparent. Return != 0 for invalid regno.
- */
+ return &fb_info;
+}
-static int aga_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
- u_int *transp)
+static int amifbcon_switch(int con)
{
- if (regno > 255)
- return(1);
+ /* Do we have to save the colormap? */
+ if (disp[currcon].cmap.len)
+ do_fb_get_cmap(&disp[currcon].cmap, &disp[currcon].var, 1);
- *red = palette[regno].red;
- *green = palette[regno].green;
- *blue = palette[regno].blue;
- return(0);
+ currcon = con;
+ ami_set_var(&disp[con].var);
+ /* Install new colormap */
+ do_install_cmap(con);
+ return 0;
}
+ /*
+ * Update the `var' structure (called by amicon.c)
+ */
- /*
- * Set a single color register. The values supplied are already
- * rounded down to the hardware's capabilities (according to the
- * entries in the var structure). Return != 0 for invalid regno.
- */
-
-static int aga_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
- u_int transp)
+static int amifbcon_updatevar(int con)
{
- u_short bplcon3 = current_par.bplcon3;
-
- if (regno > 255)
- return(1);
+ ami_pan_var(&disp[con].var);
+ return 0;
+}
- /*
- * Update the corresponding Hardware Color Register, unless it's Color
- * Register 0 and the screen is blanked.
- *
- * The cli()/sti() pair is here to protect bplcon3 from being changed by
- * the VBlank interrupt routine.
- */
-
- cli();
- if (regno || !is_blanked) {
- custom.bplcon3 = bplcon3 | (regno<<8 & 0xe000);
- custom.color[regno&31] = rgb2hw_high(red, green, blue);
- custom.bplcon3 = bplcon3 | (regno<<8 & 0xe000) | BPC3_LOCT;
- custom.color[regno&31] = rgb2hw_low(red, green, blue);
- custom.bplcon3 = bplcon3;
- }
- sti();
-
- palette[regno].red = red;
- palette[regno].green = green;
- palette[regno].blue = blue;
-
- return(0);
-}
-
-
- /*
- * Pan or Wrap the Display
- *
- * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag
- * in `var'.
- */
-
-static int aga_pan_display(struct fb_var_screeninfo *var,
- struct amiga_fb_par *par)
-{
- int xoffset, yoffset, vmode, xres_n, xoffset_n;
- u_short clk_shift, line_shift_incd;
- u_long ddfmin, ddfmax, ddfstrt, ddfstop, hscroll;
-
- xoffset = var->xoffset;
- yoffset = var->yoffset;
- if (var->vmode & FB_VMODE_YWRAP) {
- if (hw2ddfstrt(par->ddfstrt) < (par->bpp-1)*64 || xoffset ||
- yoffset < 0 || yoffset >= par->yres)
- return(-EINVAL);
- vmode = par->vmode | FB_VMODE_YWRAP;
- } else {
- if (par->diwstrt_h < 323)
- xoffset = up64(xoffset);
- if (xoffset < 0 || xoffset+par->xres > par->vxres ||
- yoffset < 0 || yoffset+par->yres > par->vyres)
- return(-EINVAL);
- vmode = par->vmode & ~FB_VMODE_YWRAP;
- }
-
- clk_shift = par->clk_shift;
- switch (vmode & FB_VMODE_MASK) {
- case FB_VMODE_NONINTERLACED:
- line_shift_incd = 1;
- break;
- case FB_VMODE_INTERLACED:
- line_shift_incd = 0;
- break;
- case FB_VMODE_DOUBLE:
- line_shift_incd = 2;
- break;
- }
- xres_n = par->xres<<clk_shift;
- xoffset_n = xoffset<<clk_shift;
-
- /*
- * DMA timings
- */
-
- ddfmin = down64(xoffset_n);
- ddfmax = up64(xoffset_n+xres_n);
- hscroll = par->diwstrt_h-68-mod64(xoffset_n);
- ddfstrt = down64(hscroll);
- if (ddfstrt < 128)
- return(-EINVAL);
- hscroll -= ddfstrt;
- ddfstop = ddfstrt+ddfmax-ddfmin-(64<<clk_shift);
- par->bplcon1 = hscroll2hw(hscroll);
- par->ddfstrt = ddfstrt2hw(ddfstrt);
- par->ddfstop = ddfstop2hw(ddfstop);
-
- /*
- * Bitplane calculations
- */
-
- par->bplpt0 = ZTWO_PADDR((u_long)videomemory+div8(ddfmin>>clk_shift)+
- yoffset*par->next_line);
- par->bpl1mod = par->next_line-div8((ddfmax-ddfmin)>>clk_shift);
- par->bpl2mod = par->bpl1mod;
- switch (vmode & FB_VMODE_MASK) {
- case FB_VMODE_INTERLACED:
- par->bpl1mod += par->next_line;
- par->bpl2mod += par->next_line;
- break;
- case FB_VMODE_DOUBLE:
- par->bpl1mod -= par->next_line;
- break;
- }
-
- par->xoffset = var->xoffset = xoffset;
- par->yoffset = var->yoffset = yoffset;
- par->vmode = var->vmode = vmode;
- return(0);
-}
-
-
- /*
- * Change the video mode (called by VBlank interrupt)
- */
-
-void aga_do_vmode(void)
-{
- struct amiga_fb_par *par = ¤t_par;
-
- /*
- * Rebuild the dynamic part of the Copper List and activate the right
- * Copper List as soon as possible
- *
- * Make sure we're in a Long Frame if the video mode is interlaced.
- * This is always the case if we already were in an interlaced mode,
- * since then the VBlank only calls us during a Long Frame.
- * But this _is_ necessary if we're switching from a non-interlaced
- * to an interlaced mode.
- */
-
- if ((par->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
- custom.vposw = 0x8000;
- aga_build_clist_dyn(clist_lof, clist_shf, 0, par);
- custom.cop2lc = (u_short *)ZTWO_PADDR(clist_lof);
- aga_build_clist_dyn(clist_shf, clist_lof, 1, par);
- } else {
- aga_build_clist_dyn(clist_lof, NULL, 0, par);
- custom.cop2lc = (u_short *)ZTWO_PADDR(clist_lof);
- }
-
- /*
- * Update the hardware registers
- */
-
- if (full_vmode_change) {
- custom.fmode = par->fmode;
- custom.beamcon0 = par->beamcon0;
- if (par->beamcon0 & BMC0_VARBEAMEN) {
- custom.htotal = par->htotal;
- custom.vtotal = par->vtotal;
- custom.hsstrt = par->hsstrt;
- custom.hsstop = par->hsstop;
- custom.hbstrt = par->hsstrt;
- custom.hbstop = par->hsstop;
- custom.vsstrt = par->vsstrt;
- custom.vsstop = par->vsstop;
- custom.vbstrt = par->vsstrt;
- custom.vbstop = par->vsstop;
- custom.hcenter = par->hcenter;
- }
- custom.bplcon3 = par->bplcon3;
- full_vmode_change = 0;
-
- /*
- * The minimum period for audio depends on htotal (for OCS/ECS/AGA)
- */
-
- if (boot_info.bi_amiga.chipset != CS_STONEAGE)
- amiga_audio_min_period = (par->htotal>>1)+1;
- }
- custom.ddfstrt = par->ddfstrt;
- custom.ddfstop = par->ddfstop;
- custom.bpl1mod = par->bpl1mod;
- custom.bpl2mod = par->bpl2mod;
- custom.bplcon1 = par->bplcon1;
-
- /*
- * Update the Frame Header Copper List
- */
-
- aga_update_clist_hdr(clist_hdr, par);
-}
-
-
- /*
- * (Un)Blank the screen (called by VBlank interrupt)
- */
-
-void aga_do_blank(int blank)
-{
- struct amiga_fb_par *par = ¤t_par;
- u_short bplcon3 = par->bplcon3;
- u_char red, green, blue;
-
- if (blank) {
- custom.dmacon = DMAF_RASTER | DMAF_SPRITE;
- red = green = blue = 0;
- if (pwrsave && par->beamcon0 & BMC0_VARBEAMEN) {
- /* VESA suspend mode, switch off HSYNC */
- custom.hsstrt = par->htotal+2;
- custom.hsstop = par->htotal+2;
- }
- } else {
- custom.dmacon = DMAF_SETCLR | DMAF_RASTER;
- red = palette[0].red;
- green = palette[0].green;
- blue = palette[0].blue;
- if (pwrsave && par->beamcon0 & BMC0_VARBEAMEN) {
- custom.hsstrt = par->hsstrt;
- custom.hsstop = par->hsstop;
- }
- }
- custom.bplcon3 = bplcon3;
- custom.color[0] = rgb2hw_high(red, green, blue);
- custom.bplcon3 = bplcon3 | BPC3_LOCT;
- custom.color[0] = rgb2hw_low(red, green, blue);
- custom.bplcon3 = bplcon3;
-
- is_blanked = blank;
-}
-
-
- /*
- * Move the cursor (called by VBlank interrupt)
- */
-
-void aga_do_movecursor(void)
-{
- struct amiga_fb_par *par = ¤t_par;
- struct aga_cursorsprite *sprite = (struct aga_cursorsprite *)lofsprite;
- long hs, vs, ve;
- u_short s1, s2, is_double = 0;
-
- if (par->crsr_x <= -64 || par->crsr_x >= par->xres || par->crsr_y <= -64 ||
- par->crsr_y >= par->yres)
- hs = vs = ve = 0;
- else {
- hs = par->diwstrt_h-4+(par->crsr_x<<par->clk_shift);
- vs = par->crsr_y;
- ve = min(vs+64, par->yres);
- switch (par->vmode & FB_VMODE_MASK) {
- case FB_VMODE_INTERLACED:
- vs >>= 1;
- ve >>= 1;
- break;
- case FB_VMODE_DOUBLE:
- vs <<= 1;
- ve <<= 1;
- is_double = 1;
- break;
- }
- vs += par->diwstrt_v;
- ve += par->diwstrt_v;
- }
- s1 = spr2hw_pos(vs, hs);
- if (is_double)
- s1 |= 0x80;
- s2 = spr2hw_ctl(vs, hs, ve);
- sprite->sprpos = s1;
- sprite->sprctl = s2;
-
- /*
- * TODO: Special cases:
- *
- * - Interlaced: fill position in in both lofsprite & shfsprite
- * swap lofsprite & shfsprite on odd lines
- *
- * - Doublescan: OK?
- *
- * - ve <= bottom of display: OK?
- */
-}
-
-
- /*
- * Flash the cursor (called by VBlank interrupt)
- */
+ /*
+ * Blank the display.
+ */
-void aga_do_flashcursor(void)
+static void amifbcon_blank(int blank)
{
-#if 1
- static int cursorcount = 0;
- static int cursorstate = 0;
-
- switch (cursormode) {
- case FB_CURSOR_OFF:
- custom.dmacon = DMAF_SPRITE;
- break;
- case FB_CURSOR_ON:
- custom.dmacon = DMAF_SETCLR | DMAF_SPRITE;
- break;
- case FB_CURSOR_FLASH:
- if (cursorcount)
- cursorcount--;
- else {
- cursorcount = CRSR_RATE;
- if ((cursorstate = !cursorstate))
- custom.dmacon = DMAF_SETCLR | DMAF_SPRITE;
- else
- custom.dmacon = DMAF_SPRITE;
- }
- break;
- }
-#endif
+ do_blank = blank ? blank : -1;
}
+/* ---------------------------- Generic routines ---------------------------- */
-#if 1
-static int aga_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix, int con)
+static struct fb_cmap *get_default_colormap(int bpp)
{
-#if 0
- if (ddfstrt >= 192) {
-#endif
- fix->crsr_width = 64;
- fix->crsr_height = 64;
- fix->crsr_xsize = 64;
- fix->crsr_ysize = 64;
- fix->crsr_color1 = 17;
- fix->crsr_color2 = 18;
-#if 0
- } else {
- fix->crsr_width = 0;
- fix->crsr_height = 0;
- fix->crsr_xsize = 0;
- fix->crsr_ysize = 0;
- fix->crsr_color1 = 0;
- fix->crsr_color2 = 0;
- }
-#endif
- return(0);
+ switch (bpp) {
+ case 1:
+ return &default_2_colors;
+ break;
+ case 2:
+ return &default_4_colors;
+ break;
+ case 3:
+ return &default_8_colors;
+ break;
+ default:
+ return &default_16_colors;
+ break;
+ }
}
+#define CNVT_TOHW(val,width) ((((val)<<(width))+0x7fff-(val))>>16)
+#define CNVT_FROMHW(val,width) (((width) ? ((((val)<<16)-(val)) / \
+ ((1<<(width))-1)) : 0))
-static int aga_get_var_cursorinfo(struct fb_var_cursorinfo *var, int con)
+static int do_fb_get_cmap(struct fb_cmap *cmap, struct fb_var_screeninfo *var,
+ int kspc)
{
- struct aga_cursorsprite *sprite = (struct aga_cursorsprite *)lofsprite;
+ int i, start;
+ u_short *red, *green, *blue, *transp;
+ u_int hred, hgreen, hblue, htransp;
- /* TODO: interlaced sprites */
- memcpy(var->data, sprite->u.nonlaced.data, sizeof(var->data));
- return(0);
+ red = cmap->red;
+ green = cmap->green;
+ blue = cmap->blue;
+ transp = cmap->transp;
+ start = cmap->start;
+ if (start < 0)
+ return -EINVAL;
+ for (i = 0; i < cmap->len; i++) {
+ if (ami_getcolreg(start++, &hred, &hgreen, &hblue, &htransp))
+ return 0;
+ hred = CNVT_FROMHW(hred, var->red.length);
+ hgreen = CNVT_FROMHW(hgreen, var->green.length);
+ hblue = CNVT_FROMHW(hblue, var->blue.length);
+ htransp = CNVT_FROMHW(htransp, var->transp.length);
+ if (kspc) {
+ *red = hred;
+ *green = hgreen;
+ *blue = hblue;
+ if (transp)
+ *transp = htransp;
+ } else {
+ put_fs_word(hred, red);
+ put_fs_word(hgreen, green);
+ put_fs_word(hblue, blue);
+ if (transp)
+ put_fs_word(htransp, transp);
+ }
+ red++;
+ green++;
+ blue++;
+ if (transp)
+ transp++;
+ }
+ return 0;
}
-
-static int aga_set_var_cursorinfo(struct fb_var_cursorinfo *var, int con)
+static int do_fb_set_cmap(struct fb_cmap *cmap, struct fb_var_screeninfo *var,
+ int kspc)
{
- struct aga_cursorsprite *sprite = (struct aga_cursorsprite *)lofsprite;
+ int i, start;
+ u_short *red, *green, *blue, *transp;
+ u_int hred, hgreen, hblue, htransp;
- /* TODO: interlaced sprites */
- memcpy(sprite->u.nonlaced.data, var->data, sizeof(var->data));
- return(0);
-}
+ red = cmap->red;
+ green = cmap->green;
+ blue = cmap->blue;
+ transp = cmap->transp;
+ start = cmap->start;
+ if (start < 0)
+ return -EINVAL;
+ for (i = 0; i < cmap->len; i++) {
+ if (kspc) {
+ hred = *red;
+ hgreen = *green;
+ hblue = *blue;
+ htransp = transp ? *transp : 0;
+ } else {
+ hred = get_fs_word(red);
+ hgreen = get_fs_word(green);
+ hblue = get_fs_word(blue);
+ htransp = transp ? get_fs_word(transp) : 0;
+ }
+ hred = CNVT_TOHW(hred, var->red.length);
+ hgreen = CNVT_TOHW(hgreen, var->green.length);
+ hblue = CNVT_TOHW(hblue, var->blue.length);
+ htransp = CNVT_TOHW(htransp, var->transp.length);
+ red++;
+ green++;
+ blue++;
+ if (transp)
+ transp++;
+ if (ami_setcolreg(start++, hred, hgreen, hblue, htransp))
+ return 0;
+ }
+ return 0;
+}
-static int aga_get_cursorstate(struct fb_cursorstate *state, int con)
+static void do_install_cmap(int con)
{
- state->xoffset = current_par.crsr_x;
- state->yoffset = current_par.crsr_y;
- state->mode = cursormode;
- return(0);
+ if (con != currcon)
+ return;
+ if (disp[con].cmap.len)
+ do_fb_set_cmap(&disp[con].cmap, &disp[con].var, 1);
+ else
+ do_fb_set_cmap(get_default_colormap(disp[con].var.bits_per_pixel),
+ &disp[con].var, 1);
}
-
-static int aga_set_cursorstate(struct fb_cursorstate *state, int con)
+static void memcpy_fs(int fsfromto, void *to, void *from, int len)
{
- current_par.crsr_x = state->xoffset;
- current_par.crsr_y = state->yoffset;
- cursormode = state->mode;
- do_movecursor = 1;
- return(0);
+ switch (fsfromto) {
+ case 0:
+ memcpy(to, from, len);
+ return;
+ case 1:
+ memcpy_fromfs(to, from, len);
+ return;
+ case 2:
+ memcpy_tofs(to, from, len);
+ return;
+ }
}
-#endif
+static void copy_cmap(struct fb_cmap *from, struct fb_cmap *to, int fsfromto)
+{
+ int size;
+ int tooff = 0, fromoff = 0;
- /*
- * Build the Frame Header Copper List
- */
-
-static __inline__ void aga_build_clist_hdr(struct clist_hdr *cop)
-{
- int i, j;
- u_long p;
-
- cop->bplcon0.l = CMOVE(BPC0_COLOR | BPC0_SHRES | BPC0_ECSENA, bplcon0);
- cop->diwstrt.l = CMOVE(0x0181, diwstrt);
- cop->diwstop.l = CMOVE(0x0281, diwstop);
- cop->diwhigh.l = CMOVE(0x0000, diwhigh);
- for (i = 0; i < 8; i++)
- cop->sprfix[i].l = CMOVE(0, spr[i].pos);
- for (i = 0, j = 0; i < 8; i++) {
- p = ZTWO_PADDR(dummysprite);
- cop->sprstrtup[j++].l = CMOVE(highw(p), sprpt[i]);
- cop->sprstrtup[j++].l = CMOVE2(loww(p), sprpt[i]);
- }
- cop->wait.l = CWAIT(0, 12); /* Initial value */
- cop->jump.l = CMOVE(0, copjmp2);
- cop->wait_forever.l = CEND;
-}
-
-
- /*
- * Update the Frame Header Copper List
- */
-
-static __inline__ void aga_update_clist_hdr(struct clist_hdr *cop,
- struct amiga_fb_par *par)
-{
- cop->bplcon0.l = CMOVE(~(BPC0_BPU3 | BPC0_BPU2 | BPC0_BPU1 | BPC0_BPU0) &
- par->bplcon0, bplcon0);
- cop->wait.l = CWAIT(0, par->diwstrt_v-2);
-}
-
-
- /*
- * Build the Long Frame/Short Frame Copper List
- */
-
-static void aga_build_clist_dyn(struct clist_dyn *cop,
- struct clist_dyn *othercop, u_short shf,
- struct amiga_fb_par *par)
-{
- u_long y_wrap, bplpt0, p, line;
- int i, j = 0;
-
- cop->diwstrt.l = CMOVE(par->diwstrt, diwstrt);
- cop->diwstop.l = CMOVE(par->diwstop, diwstop);
- cop->diwhigh.l = CMOVE(par->diwhigh, diwhigh);
- cop->bplcon0.l = CMOVE(par->bplcon0, bplcon0);
-
- /* Point Sprite 0 at cursor sprite */
-
- /* TODO: This should depend on the vertical sprite position too */
- if (shf) {
- p = ZTWO_PADDR(shfsprite);
- cop->sprpt[0].l = CMOVE(highw(p), sprpt[0]);
- cop->sprpt[1].l = CMOVE2(loww(p), sprpt[0]);
- } else {
- p = ZTWO_PADDR(lofsprite);
- cop->sprpt[0].l = CMOVE(highw(p), sprpt[0]);
- cop->sprpt[1].l = CMOVE2(loww(p), sprpt[0]);
- }
-
- bplpt0 = par->bplpt0;
- if (shf)
- bplpt0 += par->next_line;
- y_wrap = par->vmode & FB_VMODE_YWRAP ? par->yoffset : 0;
-
- /* Set up initial bitplane ptrs */
-
- for (i = 0, p = bplpt0; i < par->bpp; i++, p += par->next_plane) {
- cop->rest[j++].l = CMOVE(highw(p), bplpt[i]);
- cop->rest[j++].l = CMOVE2(loww(p), bplpt[i]);
- }
-
- if (y_wrap) {
- bplpt0 -= y_wrap*par->next_line;
- line = par->yres-y_wrap;
- switch (par->vmode & FB_VMODE_MASK) {
- case FB_VMODE_INTERLACED:
- line >>= 1;
- break;
- case FB_VMODE_DOUBLE:
- line <<= 1;
- break;
- }
- line += par->diwstrt_v;
-
- /* Handle skipping over 256-line chunks */
-
- while (line > 256) {
- /* Hardware limitation - 8 bit counter */
- cop->rest[j++].l = CWAIT(par->htotal-4, 255);
- /* Wait(0, 0) - make sure we're in the new segment */
- cop->rest[j++].l = CWAIT(0, 0);
- line -= 256;
- }
- cop->rest[j++].l = CWAIT(par->htotal-11, line-1);
-
- for (i = 0, p = bplpt0; i < par->bpp; i++, p += par->next_plane) {
- cop->rest[j++].l = CMOVE(highw(p), bplpt[i]);
- cop->rest[j++].l = CMOVE2(loww(p), bplpt[i]);
- }
- }
-
- if (othercop) {
- p = ZTWO_PADDR(othercop);
- cop->rest[j++].l = CMOVE(highw(p), cop2lc);
- cop->rest[j++].l = CMOVE2(loww(p), cop2lc);
- }
+ if (to->start > from->start)
+ fromoff = to->start-from->start;
+ else
+ tooff = from->start-to->start;
+ size = to->len-tooff;
+ if (size > from->len-fromoff)
+ size = from->len-fromoff;
+ if (size < 0)
+ return;
+ size *= sizeof(u_short);
+ memcpy_fs(fsfromto, to->red+tooff, from->red+fromoff, size);
+ memcpy_fs(fsfromto, to->green+tooff, from->green+fromoff, size);
+ memcpy_fs(fsfromto, to->blue+tooff, from->blue+fromoff, size);
+ if (from->transp && to->transp)
+ memcpy_fs(fsfromto, to->transp+tooff, from->transp+fromoff, size);
+}
- /* End of Copper list */
- cop->rest[j++].l = CEND;
+static int alloc_cmap(struct fb_cmap *cmap, int len, int transp)
+{
+ int size = len*sizeof(u_short);
- if (j > arraysize(cop->rest))
- printk("aga_build_clist_dyn: copper list overflow (%d entries)\n", j);
+ if (cmap->len != len) {
+ if (cmap->red)
+ kfree(cmap->red);
+ if (cmap->green)
+ kfree(cmap->green);
+ if (cmap->blue)
+ kfree(cmap->blue);
+ if (cmap->transp)
+ kfree(cmap->transp);
+ cmap->red = cmap->green = cmap->blue = cmap->transp = NULL;
+ cmap->len = 0;
+ if (!len)
+ return 0;
+ if (!(cmap->red = kmalloc(size, GFP_ATOMIC)))
+ return -1;
+ if (!(cmap->green = kmalloc(size, GFP_ATOMIC)))
+ return -1;
+ if (!(cmap->blue = kmalloc(size, GFP_ATOMIC)))
+ return -1;
+ if (transp) {
+ if (!(cmap->transp = kmalloc(size, GFP_ATOMIC)))
+ return -1;
+ } else
+ cmap->transp = NULL;
+ }
+ cmap->start = 0;
+ cmap->len = len;
+ copy_cmap(get_default_colormap(len), cmap, 0);
+ return 0;
}
-#endif /* CONFIG_AMIFB_AGA */
+static int flash_cursor(void)
+{
+ static int cursorcount = 1;
-/* -------------------- Interfaces to hardware functions -------------------- */
+ if (cursormode == FB_CURSOR_FLASH) {
+ if (!--cursorcount) {
+ cursorstate = -cursorstate;
+ cursorcount = cursorrate;
+ if (!is_blanked)
+ return 1;
+ }
+ }
+ return 0;
+}
+ /*
+ * VBlank Display Interrupt
+ */
-#ifdef CONFIG_AMIFB_OCS
-static struct fb_hwswitch ocs_switch = {
- ocs_init, ocs_encode_fix, ocs_decode_var, ocs_encode_var, ocs_getcolreg,
- ocs_setcolreg, ocs_pan_display, ocs_do_vmode, ocs_do_blank,
- ocs_do_movecursor, ocs_do_flashcursor
-};
-#endif /* CONFIG_AMIFB_OCS */
+static void amifb_interrupt(int irq, void *dev_id, struct pt_regs *fp)
+{
+ u_short ints = custom.intreqr & custom.intenar;
+ static struct irq_server server = {0, 0};
-#ifdef CONFIG_AMIFB_ECS
-static struct fb_hwswitch ecs_switch = {
- ecs_init, ecs_encode_fix, ecs_decode_var, ecs_encode_var, ecs_getcolreg,
- ecs_setcolreg, ecs_pan_display, ecs_do_vmode, ecs_do_blank,
- ecs_do_movecursor, ecs_do_flashcursor
-};
-#endif /* CONFIG_AMIFB_ECS */
+ if (ints & IF_BLIT) {
+ custom.intreq = IF_BLIT;
+ amiga_do_irq(IRQ_IDX(IRQ_AMIGA_BLIT), fp);
+ }
+
+ if (ints & IF_COPER) {
+ custom.intreq = IF_COPER;
+ if (do_vmode_pan || do_vmode_full)
+ ami_update_display();
+
+ if (do_vmode_full)
+ ami_init_display();
+
+ if (do_vmode_pan) {
+ flash_cursor();
+ ami_rebuild_copper();
+ do_cursor = do_vmode_pan = 0;
+ } else if (do_cursor) {
+ flash_cursor();
+ ami_set_sprite();
+ do_cursor = 0;
+ } else {
+ if (flash_cursor())
+ ami_set_sprite();
+ }
-#ifdef CONFIG_AMIFB_AGA
-static struct fb_hwswitch aga_switch = {
- aga_init, aga_encode_fix, aga_decode_var, aga_encode_var, aga_getcolreg,
- aga_setcolreg, aga_pan_display, aga_do_vmode, aga_do_blank,
- aga_do_movecursor, aga_do_flashcursor
-};
-#endif /* CONFIG_AMIFB_AGA */
+ if (get_vbpos() < down2(currentpar.diwstrt_v - 4))
+ custom.copjmp2 = 0;
+ if (do_blank) {
+ ami_do_blank();
+ do_blank = 0;
+ }
-/* -------------------- Generic routines ------------------------------------ */
+ if (do_vmode_full) {
+ ami_reinit_copper();
+ do_vmode_full = 0;
+ }
+ amiga_do_irq_list(IRQ_IDX(IRQ_AMIGA_VERTB), fp, &server);
+ }
+ if (ints & IF_VERTB) {
+ printk("%s: Warning: IF_VERTB was enabled\n", __FUNCTION__);
+ custom.intena = IF_VERTB;
+ }
+}
- /*
- * Allocate, Clear and Align a Block of Chip Memory
- */
+ /*
+ * Get a Video Modes
+ */
-static u_long chipalloc(u_long size)
+static void get_video_mode(const char *name)
{
- u_long ptr;
-
- size += PAGE_SIZE-1;
- if (!(ptr = (u_long)amiga_chip_alloc(size)))
- panic("No Chip RAM for frame buffer");
- memset((void *)ptr, 0, size);
- ptr = PAGE_ALIGN(ptr);
+ int i;
- return(ptr);
+ for (i = 1; i < NUM_PREDEF_MODES; i++) {
+ if (!strcmp(name, amiga_fb_modenames[i])) {
+ amiga_fb_predefined[0] = amiga_fb_predefined[i];
+ amifb_usermode = i;
+ return;
+ }
+ }
}
+ /*
+ * Probe the Video Modes
+ */
- /*
- * Fill the hardware's `par' structure.
- */
-
-static void amiga_fb_get_par(struct amiga_fb_par *par)
+static void check_default_mode(void)
{
- if (current_par_valid)
- *par = current_par;
- else
- fbhw->decode_var(&amiga_fb_predefined[amifb_mode], par);
+ struct amiga_fb_par par;
+ int mode;
+
+ for (mode = 0; mode < NUM_PREDEF_MODES; mode++) {
+ if (!ami_decode_var(&amiga_fb_predefined[mode], &par)) {
+ if (mode)
+ amiga_fb_predefined[0] = amiga_fb_predefined[mode];
+ return;
+ }
+ if (!mode)
+ printk("Can't use default video mode. Probing video modes...\n");
+ }
+ panic("Can't find any usable video mode");
}
+ /*
+ * Allocate, Clear and Align a Block of Chip Memory
+ */
-static void amiga_fb_set_par(struct amiga_fb_par *par)
+static u_long chipalloc(u_long size)
{
- do_vmode = 0;
- current_par = *par;
- full_vmode_change = 1;
- do_vmode = 1;
- current_par_valid = 1;
+ u_long ptr;
+
+ size += PAGE_SIZE-1;
+ if (!(ptr = (u_long)amiga_chip_alloc(size)))
+ panic("No Chip RAM for frame buffer");
+ memset((void *)ptr, 0, size);
+ ptr = PAGE_ALIGN(ptr);
+
+ return ptr;
}
+ /*
+ * A strtok which returns empty strings, too
+ */
-static int do_fb_set_var(struct fb_var_screeninfo *var, int isactive)
+static char *strtoke(char *s,const char *ct)
{
- int err, activate;
- struct amiga_fb_par par;
+ char *sbegin, *send;
+ static char *ssave = NULL;
- if ((err = fbhw->decode_var(var, &par)))
- return(err);
- activate = var->activate;
- if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW && isactive)
- amiga_fb_set_par(&par);
- fbhw->encode_var(var, &par);
- var->activate = activate;
- return(0);
+ sbegin = s ? s : ssave;
+ if (!sbegin)
+ return NULL;
+ if (*sbegin == '\0') {
+ ssave = NULL;
+ return NULL;
+ }
+ send = strpbrk(sbegin, ct);
+ if (send && *send != '\0')
+ *send++ = '\0';
+ ssave = send;
+ return sbegin;
}
+/* --------------------------- Hardware routines --------------------------- */
- /*
- * Default Colormaps
- */
-
-static u_short red2[] =
- { 0x0000, 0xc000 };
-static u_short green2[] =
- { 0x0000, 0xc000 };
-static u_short blue2[] =
- { 0x0000, 0xc000 };
+ /*
+ * This function should fill in the `fix' structure based on the
+ * values in the `par' structure.
+ */
-static u_short red4[] =
- { 0x0000, 0xc000, 0x8000, 0xffff };
-static u_short green4[] =
- { 0x0000, 0xc000, 0x8000, 0xffff };
-static u_short blue4[] =
- { 0x0000, 0xc000, 0x8000, 0xffff };
+static int ami_encode_fix(struct fb_fix_screeninfo *fix,
+ struct amiga_fb_par *par)
+{
+ int i;
-static u_short red8[] =
- { 0x0000, 0x0000, 0x0000, 0x0000, 0xc000, 0xc000, 0xc000, 0xc000 };
-static u_short green8[] =
- { 0x0000, 0x0000, 0xc000, 0xc000, 0x0000, 0x0000, 0xc000, 0xc000 };
-static u_short blue8[] =
- { 0x0000, 0xc000, 0x0000, 0xc000, 0x0000, 0xc000, 0x0000, 0xc000 };
+ strcpy(fix->id, amiga_fb_name);
+ fix->smem_start = videomemory;
+ fix->smem_len = videomemorysize;
+
+ if (amifb_ilbm) {
+ fix->type = FB_TYPE_INTERLEAVED_PLANES;
+ fix->type_aux = par->next_line;
+ } else {
+ fix->type = FB_TYPE_PLANES;
+ fix->type_aux = 0;
+ }
+ fix->line_length = div8(upx(16<<maxfmode, par->vxres));
+ fix->visual = FB_VISUAL_PSEUDOCOLOR;
-static u_short red16[] =
- { 0x0000, 0x0000, 0x0000, 0x0000, 0xc000, 0xc000, 0xc000, 0xc000,
- 0x8000, 0x0000, 0x0000, 0x0000, 0xffff, 0xffff, 0xffff, 0xffff };
-static u_short green16[] =
- { 0x0000, 0x0000, 0xc000, 0xc000, 0x0000, 0x0000, 0xc000, 0xc000,
- 0x8000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff };
-static u_short blue16[] =
- { 0x0000, 0xc000, 0x0000, 0xc000, 0x0000, 0xc000, 0x0000, 0xc000,
- 0x8000, 0xffff, 0x0000, 0xffff, 0x0000, 0xffff, 0x0000, 0xffff };
+ if (par->vmode & FB_VMODE_YWRAP) {
+ fix->ywrapstep = 1;
+ fix->xpanstep = fix->ypanstep = 0;
+ } else {
+ fix->ywrapstep = 0;
+ if (par->vmode &= FB_VMODE_SMOOTH_XPAN)
+ fix->xpanstep = 1;
+ else
+ fix->xpanstep = 16<<maxfmode;
+ fix->ypanstep = 1;
+ }
+ for (i = 0; i < arraysize(fix->reserved); i++)
+ fix->reserved[i] = 0;
-static struct fb_cmap default_2_colors =
- { 0, 2, red2, green2, blue2, NULL };
-static struct fb_cmap default_8_colors =
- { 0, 8, red8, green8, blue8, NULL };
-static struct fb_cmap default_4_colors =
- { 0, 4, red4, green4, blue4, NULL };
-static struct fb_cmap default_16_colors =
- { 0, 16, red16, green16, blue16, NULL };
+ return 0;
+}
+ /*
+ * Get the video params out of `var'. If a value doesn't fit, round
+ * it up, if it's too big, return -EINVAL.
+ */
-static struct fb_cmap *get_default_colormap(int bpp)
+static int ami_decode_var(struct fb_var_screeninfo *var,
+ struct amiga_fb_par *par)
{
- switch (bpp) {
- case 1:
- return(&default_2_colors);
- break;
- case 2:
- return(&default_4_colors);
- break;
- case 3:
- return(&default_8_colors);
- break;
- default:
- return(&default_16_colors);
- break;
- }
-}
+ u_short clk_shift, line_shift;
+ u_long maxfetchstop, fstrt, fsize, fconst, xres_n, yres_n;
+ u_long hrate = 0, vrate = 0;
+ /*
+ * Find a matching Pixel Clock
+ */
-#define CNVT_TOHW(val,width) ((((val)<<(width))+0x7fff-(val))>>16)
-#define CNVT_FROMHW(val,width) (((width) ? ((((val)<<16)-(val)) / \
- ((1<<(width))-1)) : 0))
+ for (clk_shift = TAG_SHRES; clk_shift < TAG_LORES; clk_shift++)
+ if (var->pixclock <= pixclock[clk_shift])
+ break;
+ if (clk_shift >= TAG_LORES)
+ return -EINVAL;
+ par->clk_shift = clk_shift;
-static int do_fb_get_cmap(struct fb_cmap *cmap, struct fb_var_screeninfo *var,
- int kspc)
-{
- int i, start;
- u_short *red, *green, *blue, *transp;
- u_int hred, hgreen, hblue, htransp;
-
- red = cmap->red;
- green = cmap->green;
- blue = cmap->blue;
- transp = cmap->transp;
- start = cmap->start;
- if (start < 0)
- return(-EINVAL);
- for (i = 0; i < cmap->len; i++) {
- if (fbhw->getcolreg(start++, &hred, &hgreen, &hblue, &htransp))
- return(0);
- hred = CNVT_FROMHW(hred, var->red.length);
- hgreen = CNVT_FROMHW(hgreen, var->green.length);
- hblue = CNVT_FROMHW(hblue, var->blue.length);
- htransp = CNVT_FROMHW(htransp, var->transp.length);
- if (kspc) {
- *red = hred;
- *green = hgreen;
- *blue = hblue;
- if (transp)
- *transp = htransp;
- } else {
- put_fs_word(hred, red);
- put_fs_word(hgreen, green);
- put_fs_word(hblue, blue);
- if (transp)
- put_fs_word(htransp, transp);
- }
- red++;
- green++;
- blue++;
- if (transp)
- transp++;
- }
- return(0);
-}
+ /*
+ * Check the Geometry Values
+ */
+ if ((par->xres = var->xres) < 64)
+ return -EINVAL;
+ if ((par->yres = var->yres) < 64)
+ return -EINVAL;
+ if ((par->vxres = var->xres_virtual) < 64)
+ return -EINVAL;
+ if ((par->vyres = var->yres_virtual) < 64)
+ return -EINVAL;
+
+ par->bpp = var->bits_per_pixel;
+ if (!var->nonstd) {
+ if (par->bpp <= 0 || par->bpp > maxdepth[clk_shift])
+ return -EINVAL;
+ } else if (var->nonstd == FB_NONSTD_HAM) {
+ if (par->bpp != 6)
+ if (par->bpp != 8 || !IS_AGA)
+ return -EINVAL;
+ } else
+ return -EINVAL;
-static int do_fb_set_cmap(struct fb_cmap *cmap, struct fb_var_screeninfo *var,
- int kspc)
-{
- int i, start;
- u_short *red, *green, *blue, *transp;
- u_int hred, hgreen, hblue, htransp;
-
- red = cmap->red;
- green = cmap->green;
- blue = cmap->blue;
- transp = cmap->transp;
- start = cmap->start;
-
- if (start < 0)
- return(-EINVAL);
- for (i = 0; i < cmap->len; i++) {
- if (kspc) {
- hred = *red;
- hgreen = *green;
- hblue = *blue;
- htransp = transp ? *transp : 0;
- } else {
- hred = get_fs_word(red);
- hgreen = get_fs_word(green);
- hblue = get_fs_word(blue);
- htransp = transp ? get_fs_word(transp) : 0;
- }
- hred = CNVT_TOHW(hred, var->red.length);
- hgreen = CNVT_TOHW(hgreen, var->green.length);
- hblue = CNVT_TOHW(hblue, var->blue.length);
- htransp = CNVT_TOHW(htransp, var->transp.length);
- red++;
- green++;
- blue++;
- if (transp)
- transp++;
- if (fbhw->setcolreg(start++, hred, hgreen, hblue, htransp))
- return(0);
- }
- return(0);
-}
+ /*
+ * FB_VMODE_SMOOTH_XPAN will be cleared, if one of the folloing
+ * checks failed and smooth scrolling is not possible
+ */
+
+ par->vmode = var->vmode | FB_VMODE_SMOOTH_XPAN;
+ switch (par->vmode & FB_VMODE_MASK) {
+ case FB_VMODE_INTERLACED:
+ line_shift = 0;
+ break;
+ case FB_VMODE_NONINTERLACED:
+ line_shift = 1;
+ break;
+ case FB_VMODE_DOUBLE:
+ if (!IS_AGA)
+ return -EINVAL;
+ line_shift = 2;
+ break;
+ default:
+ return -EINVAL;
+ break;
+ }
+ par->line_shift = line_shift;
+
+ /*
+ * Vertical and Horizontal Timings
+ */
+ xres_n = par->xres<<clk_shift;
+ yres_n = par->yres<<line_shift;
+ par->htotal = down8((var->left_margin+par->xres+var->right_margin+var->hsync_len)<<clk_shift);
+ par->vtotal = down2(((var->upper_margin+par->yres+var->lower_margin+var->vsync_len)<<line_shift)+1);
+
+ if (IS_AGA)
+ par->bplcon3 = sprpixmode[clk_shift];
+ else
+ par->bplcon3 = 0;
+ if (var->sync & FB_SYNC_BROADCAST) {
+ par->diwstop_h = par->htotal-((var->right_margin-var->hsync_len)<<clk_shift);
+ if (IS_AGA)
+ par->diwstop_h += mod4(var->hsync_len);
+ else
+ par->diwstop_h = down4(par->diwstop_h);
+ par->diwstrt_h = par->diwstop_h - xres_n;
+ par->diwstop_v = par->vtotal-((var->lower_margin-var->vsync_len)<<line_shift);
+ par->diwstrt_v = par->diwstop_v - yres_n;
+ if (par->diwstop_h >= par->htotal+8 || par->diwstop_v > par->vtotal)
+ return -EINVAL;
+ if (!IS_OCS) {
+ /* Initialize sync with some reasonable values for pwrsave */
+ par->hsstrt = 160;
+ par->hsstop = 320;
+ par->vsstrt = 30;
+ par->vsstop = 34;
+ } else {
+ par->hsstrt = 0;
+ par->hsstop = 0;
+ par->vsstrt = 0;
+ par->vsstop = 0;
+ }
+ if (par->vtotal > (PAL_VTOTAL+NTSC_VTOTAL)/2) {
+ /* PAL video mode */
+ if (par->htotal != PAL_HTOTAL)
+ return -EINVAL;
+ if (par->diwstrt_h < PAL_DIWSTRT_H)
+ return -EINVAL;
+ if (par->diwstrt_v < PAL_DIWSTRT_V)
+ return -EINVAL;
+ hrate = 15625;
+ vrate = 50;
+ if (!IS_OCS) {
+ par->beamcon0 = BMC0_PAL;
+ par->bplcon3 |= BPC3_BRDRBLNK;
+ } else if (AMIGAHW_PRESENT(AGNUS_HR_PAL) ||
+ AMIGAHW_PRESENT(AGNUS_HR_NTSC)) {
+ par->beamcon0 = BMC0_PAL;
+ par->hsstop = 1;
+ } else if (boot_info.bi_un.bi_ami.vblank != 50)
+ return -EINVAL;
+ } else {
+ /* NTSC video mode
+ * In the AGA chipset seems to be hardware bug with BPC3_BRDRBLNK
+ * and NTSC activated, so than better let diwstop_h <= 1812
+ */
+ if (par->htotal != NTSC_HTOTAL)
+ return -EINVAL;
+ if (par->diwstrt_h < NTSC_DIWSTRT_H)
+ return -EINVAL;
+ if (par->diwstrt_v < NTSC_DIWSTRT_V)
+ return -EINVAL;
+ hrate = 15750;
+ vrate = 60;
+ if (!IS_OCS) {
+ par->beamcon0 = 0;
+ par->bplcon3 |= BPC3_BRDRBLNK;
+ } else if (AMIGAHW_PRESENT(AGNUS_HR_PAL) ||
+ AMIGAHW_PRESENT(AGNUS_HR_NTSC)) {
+ par->beamcon0 = 0;
+ par->hsstop = 1;
+ } else if (boot_info.bi_un.bi_ami.vblank != 60)
+ return -EINVAL;
+ }
+ if (IS_OCS) {
+ if (par->diwstrt_h >= 1024 || par->diwstop_h < 1024 ||
+ par->diwstrt_v >= 512 || par->diwstop_v < 256)
+ return -EINVAL;
+ }
+ } else if (!IS_OCS) {
+ /* Programmable video mode */
+ par->hsstrt = var->right_margin<<clk_shift;
+ par->hsstop = (var->right_margin+var->hsync_len)<<clk_shift;
+ par->diwstop_h = par->htotal - mod8(par->hsstrt) + 8 - (1 << clk_shift);
+ if (!IS_AGA)
+ par->diwstop_h = down4(par->diwstop_h) - 16;
+ par->diwstrt_h = par->diwstop_h - xres_n;
+ par->hbstop = par->diwstrt_h + 4;
+ par->hbstrt = par->diwstop_h + 4;
+ if (par->hbstrt >= par->htotal + 8)
+ par->hbstrt -= par->htotal;
+ par->hcenter = par->hsstrt + (par->htotal >> 1);
+ par->vsstrt = var->lower_margin<<line_shift;
+ par->vsstop = (var->lower_margin+var->vsync_len)<<line_shift;
+ par->diwstop_v = par->vtotal;
+ if ((par->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED)
+ par->diwstop_v -= 2;
+ par->diwstrt_v = par->diwstop_v - yres_n;
+ par->vbstop = par->diwstrt_v - 2;
+ par->vbstrt = par->diwstop_v - 2;
+ if (par->vtotal > 2048 || par->htotal > 2048)
+ return -EINVAL;
+ par->bplcon3 |= BPC3_EXTBLKEN;
+ par->beamcon0 = BMC0_HARDDIS | BMC0_VARVBEN | BMC0_LOLDIS |
+ BMC0_VARVSYEN | BMC0_VARHSYEN | BMC0_VARBEAMEN |
+ BMC0_PAL | BMC0_VARCSYEN;
+ if (var->sync & FB_SYNC_HOR_HIGH_ACT)
+ par->beamcon0 |= BMC0_HSYTRUE;
+ if (var->sync & FB_SYNC_VERT_HIGH_ACT)
+ par->beamcon0 |= BMC0_VSYTRUE;
+ if (var->sync & FB_SYNC_COMP_HIGH_ACT)
+ par->beamcon0 |= BMC0_CSYTRUE;
+ hrate = (amiga_masterclock+par->htotal/2)/par->htotal;
+ vrate = div2(par->vtotal) * par->htotal;
+ vrate = (amiga_masterclock+vrate/2)/vrate;
+ } else
+ return -EINVAL;
-static void do_install_cmap(int con)
-{
- if (con != currcon)
- return;
- if (disp[con].cmap.len)
- do_fb_set_cmap(&disp[con].cmap, &disp[con].var, 1);
- else
- do_fb_set_cmap(get_default_colormap(disp[con].var.bits_per_pixel),
- &disp[con].var, 1);
-}
+ /*
+ * Checking the DMA timing
+ */
+ fconst = 16<<maxfmode<<clk_shift;
-static void memcpy_fs(int fsfromto, void *to, void *from, int len)
-{
- switch (fsfromto) {
- case 0:
- memcpy(to, from, len);
- return;
- case 1:
- memcpy_fromfs(to, from, len);
- return;
- case 2:
- memcpy_tofs(to, from, len);
- return;
- }
-}
+ /*
+ * smallest window start value without turn off other dma cycles
+ * than sprite1-7, unless you change min_fstrt
+ */
-static void copy_cmap(struct fb_cmap *from, struct fb_cmap *to, int fsfromto)
-{
- int size;
- int tooff = 0, fromoff = 0;
+ fsize = ((maxfmode+clk_shift <= 1) ? fconst : 64);
+ fstrt = downx(fconst, par->diwstrt_h-4) - fsize;
+ if (fstrt < min_fstrt)
+ return -EINVAL;
- if (to->start > from->start)
- fromoff = to->start-from->start;
- else
- tooff = from->start-to->start;
- size = to->len-tooff;
- if (size > from->len-fromoff)
- size = from->len-fromoff;
- if (size < 0)
- return;
- size *= sizeof(u_short);
- memcpy_fs(fsfromto, to->red+tooff, from->red+fromoff, size);
- memcpy_fs(fsfromto, to->green+tooff, from->green+fromoff, size);
- memcpy_fs(fsfromto, to->blue+tooff, from->blue+fromoff, size);
- if (from->transp && to->transp)
- memcpy_fs(fsfromto, to->transp+tooff, from->transp+fromoff, size);
-}
+ /*
+ * smallest window start value where smooth scrolling is possible
+ */
+ fstrt = downx(fconst, par->diwstrt_h-fconst+(1<<clk_shift)-4) - fsize;
+ if (fstrt < min_fstrt)
+ par->vmode &= ~FB_VMODE_SMOOTH_XPAN;
+
+ maxfetchstop = down16(par->htotal - 80);
+
+ fstrt = downx(fconst, par->diwstrt_h-4) - 64 - fconst;
+ fsize = upx(fconst, xres_n + modx(fconst, downx(1<<clk_shift, par->diwstrt_h-4)));
+ if (fstrt + fsize > maxfetchstop)
+ par->vmode &= ~FB_VMODE_SMOOTH_XPAN;
+
+ fsize = upx(fconst, xres_n);
+ if (fstrt + fsize > maxfetchstop)
+ return -EINVAL;
+
+ if (maxfmode + clk_shift <= 1) {
+ fsize = up64(xres_n + fconst - 1);
+ if (min_fstrt + fsize - 64 > maxfetchstop)
+ par->vmode &= ~FB_VMODE_SMOOTH_XPAN;
+
+ fsize = up64(xres_n);
+ if (min_fstrt + fsize - 64 > maxfetchstop)
+ return -EINVAL;
-static int alloc_cmap(struct fb_cmap *cmap, int len, int transp)
-{
- int size = len*sizeof(u_short);
+ fsize -= 64;
+ } else
+ fsize -= fconst;
- if (cmap->len != len) {
- if (cmap->red)
- kfree(cmap->red);
- if (cmap->green)
- kfree(cmap->green);
- if (cmap->blue)
- kfree(cmap->blue);
- if (cmap->transp)
- kfree(cmap->transp);
- cmap->red = cmap->green = cmap->blue = cmap->transp = NULL;
- cmap->len = 0;
- if (!len)
- return(0);
- if (!(cmap->red = kmalloc(size, GFP_ATOMIC)))
- return(-1);
- if (!(cmap->green = kmalloc(size, GFP_ATOMIC)))
- return(-1);
- if (!(cmap->blue = kmalloc(size, GFP_ATOMIC)))
- return(-1);
- if (transp) {
- if (!(cmap->transp = kmalloc(size, GFP_ATOMIC)))
- return(-1);
- } else
- cmap->transp = NULL;
- }
- cmap->start = 0;
- cmap->len = len;
- copy_cmap(get_default_colormap(len), cmap, 0);
- return(0);
-}
+ /*
+ * Check if there is enough time to update the bitplane pointers for ywrap
+ */
+ if (par->htotal-fsize-64 < par->bpp*64)
+ par->vmode &= ~FB_VMODE_YWRAP;
- /*
- * Get the Fixed Part of the Display
- */
+ /*
+ * Bitplane calculations and check the Memory Requirements
+ */
-static int amiga_fb_get_fix(struct fb_fix_screeninfo *fix, int con)
-{
- struct amiga_fb_par par;
- int error = 0;
+ if (amifb_ilbm) {
+ par->next_plane = div8(upx(16<<maxfmode, par->vxres));
+ par->next_line = par->bpp*par->next_plane;
+ if (par->next_line * par->vyres > videomemorysize)
+ return -EINVAL;
+ } else {
+ par->next_line = div8(upx(16<<maxfmode, par->vxres));
+ par->next_plane = par->vyres*par->next_line;
+ if (par->next_plane * par->bpp > videomemorysize)
+ return -EINVAL;
+ }
- if (con == -1)
- amiga_fb_get_par(&par);
- else
- error = fbhw->decode_var(&disp[con].var, &par);
- return(error ? error : fbhw->encode_fix(fix, &par));
-}
+ /*
+ * Hardware Register Values
+ */
+ par->bplcon0 = BPC0_COLOR | bplpixmode[clk_shift];
+ if (!IS_OCS)
+ par->bplcon0 |= BPC0_ECSENA;
+ if (par->bpp == 8)
+ par->bplcon0 |= BPC0_BPU3;
+ else
+ par->bplcon0 |= par->bpp<<12;
+ if (var->nonstd == FB_NONSTD_HAM)
+ par->bplcon0 |= BPC0_HAM;
+ if (var->sync & FB_SYNC_EXT)
+ par->bplcon0 |= BPC0_ERSY;
+
+ if (IS_AGA)
+ par->fmode = bplfetchmode[maxfmode];
+
+ switch (par->vmode & FB_VMODE_MASK) {
+ case FB_VMODE_INTERLACED:
+ par->bplcon0 |= BPC0_LACE;
+ break;
+ case FB_VMODE_DOUBLE:
+ if (IS_AGA)
+ par->fmode |= FMODE_SSCAN2 | FMODE_BSCAN2;
+ break;
+ }
+
+ if (!((par->vmode ^ var->vmode) & FB_VMODE_YWRAP)) {
+ par->xoffset = var->xoffset;
+ par->yoffset = var->yoffset;
+ if (par->vmode & FB_VMODE_YWRAP) {
+ if (par->xoffset || par->yoffset < 0 || par->yoffset >= par->vyres)
+ par->xoffset = par->yoffset = 0;
+ } else {
+ if (par->xoffset < 0 || par->xoffset > upx(16<<maxfmode, par->vxres-par->xres) ||
+ par->yoffset < 0 || par->yoffset > par->vyres-par->yres)
+ par->xoffset = par->yoffset = 0;
+ }
+ } else
+ par->xoffset = par->yoffset = 0;
- /*
- * Get the User Defined Part of the Display
- */
+ par->crsr.crsr_x = par->crsr.crsr_y = 0;
+ par->crsr.spot_x = par->crsr.spot_y = 0;
+ par->crsr.height = par->crsr.width = 0;
-static int amiga_fb_get_var(struct fb_var_screeninfo *var, int con)
-{
- struct amiga_fb_par par;
- int error = 0;
+ if (hrate < hfmin || hrate > hfmax || vrate < vfmin || vrate > vfmax)
+ return -EINVAL;
- if (con == -1) {
- amiga_fb_get_par(&par);
- error = fbhw->encode_var(var, &par);
- } else
- *var = disp[con].var;
- return(error);
+ return 0;
}
+ /*
+ * Fill the `var' structure based on the values in `par' and maybe
+ * other values read out of the hardware.
+ */
-static void amiga_fb_set_disp(int con)
+static int ami_encode_var(struct fb_var_screeninfo *var,
+ struct amiga_fb_par *par)
{
- struct fb_fix_screeninfo fix;
+ u_short clk_shift, line_shift;
+ int i;
- amiga_fb_get_fix(&fix, con);
- if (con == -1)
- con = 0;
- disp[con].screen_base = (u_char *)fix.smem_start;
- disp[con].visual = fix.visual;
- disp[con].type = fix.type;
- disp[con].type_aux = fix.type_aux;
- disp[con].ypanstep = fix.ypanstep;
- disp[con].ywrapstep = fix.ywrapstep;
- disp[con].line_length = fix.line_length;
- disp[con].can_soft_blank = 1;
- disp[con].inverse = amifb_inverse;
-}
+ clk_shift = par->clk_shift;
+ line_shift = par->line_shift;
+ var->xres = par->xres;
+ var->yres = par->yres;
+ var->xres_virtual = par->vxres;
+ var->yres_virtual = par->vyres;
+ var->xoffset = par->xoffset;
+ var->yoffset = par->yoffset;
- /*
- * Set the User Defined Part of the Display
- */
+ var->bits_per_pixel = par->bpp;
+ var->grayscale = 0;
-static int amiga_fb_set_var(struct fb_var_screeninfo *var, int con)
-{
- int err, oldxres, oldyres, oldvxres, oldvyres, oldbpp;
+ if (IS_AGA) {
+ var->red.offset = 0;
+ var->red.length = 8;
+ var->red.msb_right = 0;
+ } else {
+ if (clk_shift == TAG_SHRES) {
+ var->red.offset = 0;
+ var->red.length = 2;
+ var->red.msb_right = 0;
+ } else {
+ var->red.offset = 0;
+ var->red.length = 4;
+ var->red.msb_right = 0;
+ }
+ }
+ var->blue = var->green = var->red;
+ var->transp.offset = 0;
+ var->transp.length = 0;
+ var->transp.msb_right = 0;
- if ((err = do_fb_set_var(var, con == currcon)))
- return(err);
- if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) {
- oldxres = disp[con].var.xres;
- oldyres = disp[con].var.yres;
- oldvxres = disp[con].var.xres_virtual;
- oldvyres = disp[con].var.yres_virtual;
- oldbpp = disp[con].var.bits_per_pixel;
- disp[con].var = *var;
- if (oldxres != var->xres || oldyres != var->yres ||
- oldvxres != var->xres_virtual || oldvyres != var->yres_virtual ||
- oldbpp != var->bits_per_pixel) {
- amiga_fb_set_disp(con);
- (*fb_info.changevar)(con);
- alloc_cmap(&disp[con].cmap, 0, 0);
- do_install_cmap(con);
- }
- }
- var->activate = 0;
- return(0);
-}
+ if (par->bplcon0 & BPC0_HAM)
+ var->nonstd = FB_NONSTD_HAM;
+ else
+ var->nonstd = 0;
+ var->activate = 0;
+ var->height = -1;
+ var->width = -1;
+ var->accel = 0;
- /*
- * Get the Colormap
- */
+ var->pixclock = pixclock[clk_shift];
-static int amiga_fb_get_cmap(struct fb_cmap *cmap, int kspc, int con)
-{
- if (con == currcon) /* current console? */
- return(do_fb_get_cmap(cmap, &disp[con].var, kspc));
- else if (disp[con].cmap.len) /* non default colormap? */
- copy_cmap(&disp[con].cmap, cmap, kspc ? 0 : 2);
- else
- copy_cmap(get_default_colormap(disp[con].var.bits_per_pixel), cmap,
- kspc ? 0 : 2);
- return(0);
-}
+ if (IS_AGA && par->fmode & FMODE_BSCAN2)
+ var->vmode = FB_VMODE_DOUBLE;
+ else if (par->bplcon0 & BPC0_LACE)
+ var->vmode = FB_VMODE_INTERLACED;
+ else
+ var->vmode = FB_VMODE_NONINTERLACED;
+ if (!IS_OCS && par->beamcon0 & BMC0_VARBEAMEN) {
+ var->hsync_len = (par->hsstop-par->hsstrt)>>clk_shift;
+ var->right_margin = par->hsstrt>>clk_shift;
+ var->left_margin = (par->htotal>>clk_shift) - var->xres - var->right_margin - var->hsync_len;
+ var->vsync_len = (par->vsstop-par->vsstrt)>>line_shift;
+ var->lower_margin = par->vsstrt>>line_shift;
+ var->upper_margin = (par->vtotal>>line_shift) - var->yres - var->lower_margin - var->vsync_len;
+ var->sync = 0;
+ if (par->beamcon0 & BMC0_HSYTRUE)
+ var->sync |= FB_SYNC_HOR_HIGH_ACT;
+ if (par->beamcon0 & BMC0_VSYTRUE)
+ var->sync |= FB_SYNC_VERT_HIGH_ACT;
+ if (par->beamcon0 & BMC0_CSYTRUE)
+ var->sync |= FB_SYNC_COMP_HIGH_ACT;
+ } else {
+ var->sync = FB_SYNC_BROADCAST;
+ var->hsync_len = (152>>clk_shift) + mod4(par->diwstop_h);
+ var->right_margin = ((par->htotal - down4(par->diwstop_h))>>clk_shift) + var->hsync_len;
+ var->left_margin = (par->htotal>>clk_shift) - var->xres - var->right_margin - var->hsync_len;
+ var->vsync_len = 4>>line_shift;
+ var->lower_margin = ((par->vtotal - par->diwstop_v)>>line_shift) + var->vsync_len;
+ var->upper_margin = (((par->vtotal - 2)>>line_shift) + 1) - var->yres -
+ var->lower_margin - var->vsync_len;
+ }
- /*
- * Set the Colormap
- */
+ if (par->bplcon0 & BPC0_ERSY)
+ var->sync |= FB_SYNC_EXT;
+ if (par->vmode & FB_VMODE_YWRAP)
+ var->vmode |= FB_VMODE_YWRAP;
-static int amiga_fb_set_cmap(struct fb_cmap *cmap, int kspc, int con)
-{
- int err;
+ for (i = 0; i < arraysize(var->reserved); i++)
+ var->reserved[i] = 0;
- if (!disp[con].cmap.len) { /* no colormap allocated? */
- if ((err = alloc_cmap(&disp[con].cmap, 1<<disp[con].var.bits_per_pixel,
- 0)))
- return(err);
- }
- if (con == currcon) /* current console? */
- return(do_fb_set_cmap(cmap, &disp[con].var, kspc));
- else
- copy_cmap(cmap, &disp[con].cmap, kspc ? 0 : 1);
- return(0);
+ return 0;
}
+ /*
+ * Get current hardware setting
+ */
- /*
- * Pan or Wrap the Display
- *
- * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag
- */
-
-static int amiga_fb_pan_display(struct fb_var_screeninfo *var, int con)
+static void ami_get_par(struct amiga_fb_par *par)
{
- int err;
- u_short oldlatch;
-
- if (var->vmode & FB_VMODE_YWRAP) {
- if (var->xoffset || var->yoffset >= disp[con].var.yres)
- return(-EINVAL);
- } else {
- if (var->xoffset+disp[con].var.xres > disp[con].var.xres_virtual ||
- var->yoffset+disp[con].var.yres > disp[con].var.yres_virtual)
- return(-EINVAL);
- }
- if (con == currcon) {
- cli();
- oldlatch = do_vmode;
- do_vmode = 0;
- sti();
- if ((err = fbhw->pan_display(var, ¤t_par))) {
- if (oldlatch)
- do_vmode = 1;
- return(err);
- }
- do_vmode = 1;
- }
- disp[con].var.xoffset = var->xoffset;
- disp[con].var.yoffset = var->yoffset;
- if (var->vmode & FB_VMODE_YWRAP)
- disp[con].var.vmode |= FB_VMODE_YWRAP;
- else
- disp[con].var.vmode &= ~FB_VMODE_YWRAP;
- return(0);
+ *par = currentpar;
}
+ /*
+ * Set new videomode
+ */
- /*
- * Amiga Frame Buffer Specific ioctls
- */
-
-static int amiga_fb_ioctl(struct inode *inode, struct file *file,
- u_int cmd, u_long arg, int con)
+static void ami_set_var(struct fb_var_screeninfo *var)
{
- int i;
- struct fb_fix_cursorinfo crsrfix;
- struct fb_var_cursorinfo crsrvar;
- struct fb_cursorstate crsrstate;
-
- switch (cmd) {
-#ifdef CONFIG_AMIFB_AGA
- case FBIOGET_FCURSORINFO:
- i = verify_area(VERIFY_WRITE, (void *)arg, sizeof(crsrfix));
- if (i)
- return(i);
- i = amiga_fb_get_fix_cursorinfo(&crsrfix, con);
- memcpy_tofs((void *)arg, &crsrfix, sizeof(crsrfix));
- return(i);
- case FBIOGET_VCURSORINFO:
- i = verify_area(VERIFY_WRITE, (void *)arg, sizeof(crsrvar));
- if (i)
- return(i);
- i = amiga_fb_get_var_cursorinfo(&crsrvar, con);
- memcpy_tofs((void *)arg, &crsrvar, sizeof(crsrvar));
- return(i);
- case FBIOPUT_VCURSORINFO:
- i = verify_area(VERIFY_READ, (void *)arg, sizeof(crsrvar));
- if (i)
- return(i);
- memcpy_fromfs(&crsrvar, (void *)arg, sizeof(crsrvar));
- i = amiga_fb_set_var_cursorinfo(&crsrvar, con);
- return(i);
- case FBIOGET_CURSORSTATE:
- i = verify_area(VERIFY_WRITE, (void *)arg, sizeof(crsrstate));
- if (i)
- return(i);
- i = amiga_fb_get_cursorstate(&crsrstate, con);
- memcpy_tofs((void *)arg, &crsrstate, sizeof(crsrstate));
- return(i);
- case FBIOPUT_CURSORSTATE:
- i = verify_area(VERIFY_READ, (void *)arg, sizeof(crsrstate));
- if (i)
- return(i);
- memcpy_fromfs(&crsrstate, (void *)arg, sizeof(crsrstate));
- i = amiga_fb_set_cursorstate(&crsrstate, con);
- return(i);
-#endif /* CONFIG_AMIFB_AGA */
-#if 1
- case FBCMD_GET_CURRENTPAR:
- if ((i = verify_area(VERIFY_WRITE, (void *)arg,
- sizeof(struct amiga_fb_par))))
- return(i);
- memcpy_tofs((void *)arg, (void *)¤t_par,
- sizeof(struct amiga_fb_par));
- return(0);
- break;
- case FBCMD_SET_CURRENTPAR:
- if ((i = verify_area(VERIFY_READ, (void *)arg,
- sizeof(struct amiga_fb_par))))
- return(i);
- memcpy_fromfs((void *)¤t_par, (void *)arg,
- sizeof(struct amiga_fb_par));
- return(0);
- break;
-#endif
- }
- return(-EINVAL);
+ do_vmode_pan = 0;
+ do_vmode_full = 0;
+ ami_decode_var(var, ¤tpar);
+ ami_build_copper();
+ do_vmode_full = 1;
+}
+
+#ifdef DEBUG
+static void ami_set_par(struct amiga_fb_par *par)
+{
+ do_vmode_pan = 0;
+ do_vmode_full = 0;
+ currentpar = *par;
+ ami_build_copper();
+ do_vmode_full = 1;
}
+#endif
+ /*
+ * Pan or Wrap the Display
+ *
+ * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag
+ * in `var'.
+ */
-#ifdef CONFIG_AMIFB_AGA
- /*
- * Hardware Cursor
- */
-
-static int amiga_fb_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix, int con)
+static void ami_pan_var(struct fb_var_screeninfo *var)
{
- if (boot_info.bi_amiga.chipset == CS_AGA)
- return(aga_get_fix_cursorinfo(fix, con));
- return(-EINVAL);
-}
+ struct amiga_fb_par *par = ¤tpar;
+ par->xoffset = var->xoffset;
+ par->yoffset = var->yoffset;
+ if (var->vmode & FB_VMODE_YWRAP)
+ par->vmode |= FB_VMODE_YWRAP;
+ else
+ par->vmode &= ~FB_VMODE_YWRAP;
-static int amiga_fb_get_var_cursorinfo(struct fb_var_cursorinfo *var, int con)
-{
- if (boot_info.bi_amiga.chipset == CS_AGA)
- return(aga_get_var_cursorinfo(var, con));
- return(-EINVAL);
+ do_vmode_pan = 0;
+ ami_update_par();
+ do_vmode_pan = 1;
}
+ /*
+ * Update hardware
+ */
-static int amiga_fb_set_var_cursorinfo(struct fb_var_cursorinfo *var, int con)
+static int ami_update_par(void)
{
- if (boot_info.bi_amiga.chipset == CS_AGA)
- return(aga_set_var_cursorinfo(var, con));
- return(-EINVAL);
-}
-
+ struct amiga_fb_par *par = ¤tpar;
+ short clk_shift, vshift, fstrt, fsize, fstop, fconst, shift, move, mod;
-static int amiga_fb_get_cursorstate(struct fb_cursorstate *state, int con)
-{
- if (boot_info.bi_amiga.chipset == CS_AGA)
- return(aga_get_cursorstate(state, con));
- return(-EINVAL);
-}
+ clk_shift = par->clk_shift;
+ if (!(par->vmode & FB_VMODE_SMOOTH_XPAN))
+ par->xoffset = upx(16<<maxfmode, par->xoffset);
+
+ fconst = 16<<maxfmode<<clk_shift;
+ vshift = modx(16<<maxfmode, par->xoffset);
+ fstrt = par->diwstrt_h - (vshift<<clk_shift) - 4;
+ fsize = (par->xres+vshift)<<clk_shift;
+ shift = modx(fconst, fstrt);
+ move = downx(2<<maxfmode, div8(par->xoffset));
+ if (maxfmode + clk_shift > 1) {
+ fstrt = downx(fconst, fstrt) - 64;
+ fsize = upx(fconst, fsize);
+ fstop = fstrt + fsize - fconst;
+ } else {
+ mod = fstrt = downx(fconst, fstrt) - fconst;
+ fstop = fstrt + upx(fconst, fsize) - 64;
+ fsize = up64(fsize);
+ fstrt = fstop - fsize + 64;
+ if (fstrt < min_fstrt) {
+ fstop += min_fstrt - fstrt;
+ fstrt = min_fstrt;
+ }
+ move = move - div8((mod-fstrt)>>clk_shift);
+ }
+ mod = par->next_line - div8(fsize>>clk_shift);
+ par->ddfstrt = fstrt;
+ par->ddfstop = fstop;
+ par->bplcon1 = hscroll2hw(shift);
+ par->bpl2mod = mod;
+ if (par->bplcon0 & BPC0_LACE)
+ par->bpl2mod += par->next_line;
+ if (IS_AGA && (par->fmode & FMODE_BSCAN2))
+ par->bpl1mod = -div8(fsize>>clk_shift);
+ else
+ par->bpl1mod = par->bpl2mod;
-static int amiga_fb_set_cursorstate(struct fb_cursorstate *state, int con)
-{
- if (boot_info.bi_amiga.chipset == CS_AGA)
- return(aga_set_cursorstate(state, con));
- return(-EINVAL);
-}
-#endif /* CONFIG_AMIFB_AGA */
+ if (par->yoffset) {
+ par->bplpt0 = ZTWO_PADDR((u_long)videomemory + par->next_line*par->yoffset + move);
+ if (par->vmode & FB_VMODE_YWRAP) {
+ if (par->yoffset > par->vyres-par->yres) {
+ par->bplpt0wrap = ZTWO_PADDR((u_long)videomemory + move);
+ if (par->bplcon0 & BPC0_LACE && mod2(par->diwstrt_v+par->vyres-par->yoffset))
+ par->bplpt0wrap += par->next_line;
+ }
+ }
+ } else
+ par->bplpt0 = ZTWO_PADDR((u_long)videomemory + move);
+ if (par->bplcon0 & BPC0_LACE && mod2(par->diwstrt_v))
+ par->bplpt0 += par->next_line;
-static struct fb_ops amiga_fb_ops = {
- amiga_fb_get_fix, amiga_fb_get_var, amiga_fb_set_var, amiga_fb_get_cmap,
- amiga_fb_set_cmap, amiga_fb_pan_display, amiga_fb_ioctl
-};
+ return 0;
+}
+ /*
+ * Read a single color register and split it into
+ * colors/transparent. Return != 0 for invalid regno.
+ */
-void amiga_video_setup(char *options, int *ints)
+static int ami_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
+ u_int *transp)
{
- char *this_opt;
- int i;
- char mcap_spec[80];
-
- /*
- * Check for a Graphics Board
- */
-
-#ifdef CONFIG_FB_CYBER
- if (options && *options)
- if (!strncmp(options, "cyber", 5) && Cyber_probe()) {
- amifb_Cyber = 1;
- Cyber_video_setup(options, ints);
- return;
- }
-#endif /* CONFIG_FB_CYBER */
+ if (IS_AGA) {
+ if (regno > 255)
+ return 1;
+ } else {
+ if (regno > 31)
+ return 1;
+ }
-#ifdef USE_MONO_AMIFB_IF_NON_AGA
- if (boot_info.bi_amiga.chipset != CS_AGA) {
- mono_video_setup(options, ints);
- return;
- }
-#endif /* USE_MONO_AMIFB_IF_NON_AGA */
-
- mcap_spec[0] = '\0';
- fb_info.fontname[0] = '\0';
-
- if (!options || !*options)
- return;
-
- for (this_opt = strtok(options, ","); this_opt; this_opt = strtok(NULL, ","))
- if (!strcmp(this_opt, "inverse")) {
- amifb_inverse = 1;
- for (i = 0; i < 16; i++) {
- red16[i] = ~red16[i];
- green16[i] = ~green16[i];
- blue16[i] = ~blue16[i];
- }
- for (i = 0; i < 8; i++) {
- red8[i] = ~red8[i];
- green8[i] = ~green8[i];
- blue8[i] = ~blue8[i];
- }
- for (i = 0; i < 4; i++) {
- red4[i] = ~red4[i];
- green4[i] = ~green4[i];
- blue4[i] = ~blue4[i];
- }
- for (i = 0; i < 2; i++) {
- red2[i] = ~red2[i];
- green2[i] = ~green2[i];
- blue2[i] = ~blue2[i];
- }
- } else if (!strcmp(this_opt, "ilbm"))
- amifb_ilbm = 1;
- else if (!strcmp(this_opt, "pwrsave"))
- pwrsave = 1;
- else if (!strncmp(this_opt, "monitorcap:", 11))
- strcpy(mcap_spec, this_opt+11);
- else if (!strncmp(this_opt, "font:", 5))
- strcpy(fb_info.fontname, this_opt+5);
- else
- amifb_mode = get_video_mode(this_opt);
-
- if (*mcap_spec) {
- char *p;
- int vmin, vmax, hmin, hmax;
-
- /* Format for monitor capabilities is: <Vmin>;<Vmax>;<Hmin>;<Hmax>
- * <V*> vertical freq. in Hz
- * <H*> horizontal freq. in kHz
- */
-
- if (!(p = strtoke(mcap_spec, ";")) || !*p)
- goto cap_invalid;
- vmin = simple_strtoul(p, NULL, 10);
- if (vmin <= 0)
- goto cap_invalid;
- if (!(p = strtoke(NULL, ";")) || !*p)
- goto cap_invalid;
- vmax = simple_strtoul(p, NULL, 10);
- if (vmax <= 0 || vmax <= vmin)
- goto cap_invalid;
- if (!(p = strtoke(NULL, ";")) || !*p)
- goto cap_invalid;
- hmin = 1000 * simple_strtoul(p, NULL, 10);
- if (hmin <= 0)
- goto cap_invalid;
- if (!(p = strtoke(NULL, "")) || !*p)
- goto cap_invalid;
- hmax = 1000 * simple_strtoul(p, NULL, 10);
- if (hmax <= 0 || hmax <= hmin)
- goto cap_invalid;
-
- vfmin = vmin;
- vfmax = vmax;
- hfmin = hmin;
- hfmax = hmax;
-cap_invalid:
- ;
- }
+ *red = palette[regno].red;
+ *green = palette[regno].green;
+ *blue = palette[regno].blue;
+ return 0;
}
- /*
- * Initialization
- */
+ /*
+ * Set a single color register. The values supplied are already
+ * rounded down to the hardware's capabilities (according to the
+ * entries in the var structure). Return != 0 for invalid regno.
+ */
-struct fb_info *amiga_fb_init(long *mem_start)
+static int ami_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+ u_int transp)
{
- int err, tag, i;
- struct fb_var_screeninfo *var;
-
- /*
- * Check for a Graphics Board
- */
-
-#ifdef CONFIG_FB_CYBER
- if (amifb_Cyber)
- return(Cyber_fb_init(mem_start));
-#endif /* CONFIG_FB_CYBER */
+#if defined(CONFIG_AMIFB_AGA)
+ u_short bplcon3 = currentpar.bplcon3;
- /*
- * Use the Builtin Chipset
- */
-
- if (!AMIGAHW_PRESENT(AMI_VIDEO))
- return(NULL);
-
-#ifdef USE_MONO_AMIFB_IF_NON_AGA
- if (boot_info.bi_amiga.chipset != CS_AGA)
- return(mono_amiga_fb_init(mem_start));
-#endif /* USE_MONO_AMIFB_IF_NON_AGA */
+ if (IS_AGA) {
+ if (regno > 255)
+ return 1;
+ } else
+#endif
+ if (regno > 31)
+ return 1;
- switch (boot_info.bi_amiga.chipset) {
-#ifdef CONFIG_AMIFB_OCS
- case CS_OCS:
- strcat(amiga_fb_name, "OCS");
-default_chipset:
- fbhw = &ocs_switch;
- maxdepth[TAG_SHRES-1] = 0; /* OCS means no SHRES */
- maxdepth[TAG_HIRES-1] = 4;
- maxdepth[TAG_LORES-1] = 6;
- break;
-#endif /* CONFIG_AMIFB_OCS */
+ /*
+ * Update the corresponding Hardware Color Register, unless it's Color
+ * Register 0 and the screen is blanked.
+ *
+ * VBlank is switched off to protect bplcon3 or ecs_palette[] from
+ * being changed by ami_do_blank() during the VBlank.
+ */
-#ifdef CONFIG_AMIFB_ECS
- case CS_ECS:
- strcat(amiga_fb_name, "ECS");
- fbhw = &ecs_switch;
- maxdepth[TAG_SHRES-1] = 2;
- maxdepth[TAG_HIRES-1] = 4;
- maxdepth[TAG_LORES-1] = 6;
- break;
-#endif /* CONFIG_AMIFB_ECS */
+ palette[regno].red = red;
+ palette[regno].green = green;
+ palette[regno].blue = blue;
-#ifdef CONFIG_AMIFB_AGA
- case CS_AGA:
- strcat(amiga_fb_name, "AGA");
- fbhw = &aga_switch;
- maxdepth[TAG_SHRES-1] = 8;
- maxdepth[TAG_HIRES-1] = 8;
- maxdepth[TAG_LORES-1] = 8;
- break;
-#endif /* CONFIG_AMIFB_AGA */
+ if (regno || !is_blanked) {
+#if defined(CONFIG_AMIFB_AGA)
+ if (IS_AGA) {
+ VBlankOff();
+ custom.bplcon3 = bplcon3 | (regno<<8 & 0xe000);
+ custom.color[regno&31] = rgb2hw8_high(red, green, blue);
+ custom.bplcon3 = bplcon3 | (regno<<8 & 0xe000) | BPC3_LOCT;
+ custom.color[regno&31] = rgb2hw8_low(red, green, blue);
+ custom.bplcon3 = bplcon3;
+ VBlankOn();
+ } else
+#endif
+ {
+#if defined(CONFIG_AMIFB_ECS)
+ if (currentpar.bplcon0 & BPC0_SHRES) {
+ u_short color, mask;
+ int i;
+
+ mask = 0x3333;
+ color = rgb2hw2(red, green, blue);
+ VBlankOff();
+ for (i = regno+12; i >= (int)regno; i -= 4)
+ custom.color[i] = ecs_palette[i] = (ecs_palette[i] & mask) | color;
+ mask <<=2; color >>= 2;
+ regno = down16(regno)+mul4(mod4(regno));
+ for (i = regno+3; i >= (int)regno; i--)
+ custom.color[i] = ecs_palette[i] = (ecs_palette[i] & mask) | color;
+ VBlankOn();
+ } else
+#endif
+ custom.color[regno] = rgb2hw4(red, green, blue);
+ }
+ }
+ return 0;
+}
- default:
-#ifdef CONFIG_AMIFB_OCS
- printk("Unknown graphics chipset, defaulting to OCS\n");
- strcat(amiga_fb_name, "Unknown");
- goto default_chipset;
-#else /* CONFIG_AMIFB_OCS */
- panic("Unknown graphics chipset, no default driver");
-#endif /* CONFIG_AMIFB_OCS */
- break;
- }
+static void ami_update_display(void)
+{
+ struct amiga_fb_par *par = ¤tpar;
- /*
- * Calculate the Pixel Clock Values for this Machine
- */
+ custom.bplcon1 = par->bplcon1;
+ custom.bpl1mod = par->bpl1mod;
+ custom.bpl2mod = par->bpl2mod;
+ custom.ddfstrt = ddfstrt2hw(par->ddfstrt);
+ custom.ddfstop = ddfstop2hw(par->ddfstop);
+}
- __asm("movel %3,%%d0;"
- "movel #0x00000005,%%d1;" /* 25E9: SHRES: 35 ns / 28 MHz */
- "movel #0xd21dba00,%%d2;"
- "divul %%d0,%%d1,%%d2;"
- "movel %%d2,%0;"
- "movel #0x0000000b,%%d1;" /* 50E9: HIRES: 70 ns / 14 MHz */
- "movel #0xa43b7400,%%d2;"
- "divul %%d0,%%d1,%%d2;"
- "movel %%d2,%1;"
- "movel #0x00000017,%%d1;" /* 100E9: LORES: 140 ns / 7 MHz */
- "movel #0x4876e800,%%d2;"
- "divul %%d0,%%d1,%%d2;"
- "movel %%d2,%2"
- : "=r" (pixclock[TAG_SHRES-1]), "=r" (pixclock[TAG_HIRES-1]),
- "=r" (pixclock[TAG_LORES-1])
- : "r" (amiga_eclock)
- : "%%d0", "%%d1", "%%d2");
+ /*
+ * Change the video mode (called by VBlank interrupt)
+ */
- /*
- * Replace the Tag Values with the Real Pixel Clock Values
- */
+static void ami_init_display(void)
+{
+ struct amiga_fb_par *par = ¤tpar;
- for (i = 0; i < NUM_PREDEF_MODES; i++) {
- tag = amiga_fb_predefined[i].pixclock;
- if (tag == TAG_SHRES || tag == TAG_HIRES || tag == TAG_LORES) {
- amiga_fb_predefined[i].pixclock = pixclock[tag-1];
- if (amiga_fb_predefined[i].bits_per_pixel > maxdepth[tag-1])
- amiga_fb_predefined[i].bits_per_pixel = maxdepth[tag-1];
- }
- }
+ custom.bplcon0 = par->bplcon0 & ~BPC0_LACE;
+ custom.bplcon2 = (IS_OCS ? 0 : BPC2_KILLEHB) | BPC2_PF2P2 | BPC2_PF1P2;
+ if (!IS_OCS) {
+ custom.bplcon3 = par->bplcon3;
+ if (IS_AGA)
+ custom.bplcon4 = BPC4_ESPRM4 | BPC4_OSPRM4;
+ if (par->beamcon0 & BMC0_VARBEAMEN) {
+ custom.htotal = htotal2hw(par->htotal);
+ custom.hbstrt = hbstrt2hw(par->hbstrt);
+ custom.hbstop = hbstop2hw(par->hbstop);
+ custom.hsstrt = hsstrt2hw(par->hsstrt);
+ custom.hsstop = hsstop2hw(par->hsstop);
+ custom.hcenter = hcenter2hw(par->hcenter);
+ custom.vtotal = vtotal2hw(par->vtotal);
+ custom.vbstrt = vbstrt2hw(par->vbstrt);
+ custom.vbstop = vbstop2hw(par->vbstop);
+ custom.vsstrt = vsstrt2hw(par->vsstrt);
+ custom.vsstop = vsstop2hw(par->vsstop);
+ }
+ }
+ if (!IS_OCS || par->hsstop)
+ custom.beamcon0 = par->beamcon0;
+ if (IS_AGA)
+ custom.fmode = par->fmode;
- err = register_framebuffer(amiga_fb_name, &node, &amiga_fb_ops,
- NUM_TOTAL_MODES, amiga_fb_predefined);
- if (err < 0)
- panic("Cannot register frame buffer");
+ /*
+ * The minimum period for audio depends on htotal
+ */
- fbhw->init();
- check_default_mode();
+ amiga_audio_min_period = div16(par->htotal);
- if (!add_isr(IRQ_AMIGA_VERTB, amifb_interrupt, 0, NULL, "frame buffer"))
- panic("Couldn't add vblank interrupt");
+ is_lace = par->bplcon0 & BPC0_LACE ? 1 : 0;
+#if 1
+ if (is_lace) {
+ if (custom.vposr & 0x8000)
+ custom.cop2lc = (u_short *)ZTWO_PADDR(copdisplay.list[currentcop][1]);
+ else
+ custom.cop2lc = (u_short *)ZTWO_PADDR(copdisplay.list[currentcop][0]);
+ } else {
+ custom.vposw = custom.vposr | 0x8000;
+ custom.cop2lc = (u_short *)ZTWO_PADDR(copdisplay.list[currentcop][1]);
+ }
+#else
+ custom.vposw = custom.vposr | 0x8000;
+ custom.cop2lc = (u_short *)ZTWO_PADDR(copdisplay.list[currentcop][1]);
+#endif
+}
- strcpy(fb_info.modename, amiga_fb_name);
- fb_info.disp = disp;
- fb_info.switch_con = &amifb_switch;
- fb_info.updatevar = &amifb_updatevar;
- fb_info.blank = &amifb_blank;
+ /*
+ * (Un)Blank the screen (called by VBlank interrupt)
+ */
- var = &amiga_fb_predefined[amifb_mode];
- do_fb_set_var(var, 1);
- strcat(fb_info.modename, " ");
- strcat(fb_info.modename, amiga_fb_modenames[amifb_mode]);
+static void ami_do_blank(void)
+{
+ struct amiga_fb_par *par = ¤tpar;
+#if defined(CONFIG_AMIFB_AGA)
+ u_short bplcon3 = par->bplcon3;
+#endif
+ u_char red, green, blue;
- amiga_fb_get_var(&disp[0].var, -1);
- amiga_fb_set_disp(-1);
- do_install_cmap(0);
- return(&fb_info);
+ if (do_blank > 0) {
+ custom.dmacon = DMAF_RASTER | DMAF_SPRITE;
+ red = green = blue = 0;
+ if (!IS_OCS && do_blank > 1) {
+ switch (do_blank) {
+ case 2 : /* suspend vsync */
+ custom.hsstrt = hsstrt2hw(par->hsstrt);
+ custom.hsstop = hsstop2hw(par->hsstop);
+ custom.vsstrt = vsstrt2hw(par->vtotal+4);
+ custom.vsstop = vsstop2hw(par->vtotal+4);
+ break;
+ case 3 : /* suspend hsync */
+ custom.hsstrt = hsstrt2hw(par->htotal+16);
+ custom.hsstop = hsstop2hw(par->htotal+16);
+ custom.vsstrt = vsstrt2hw(par->vsstrt);
+ custom.vsstop = vsstrt2hw(par->vsstop);
+ break;
+ case 4 : /* powerdown */
+ custom.hsstrt = hsstrt2hw(par->htotal+16);
+ custom.hsstop = hsstop2hw(par->htotal+16);
+ custom.vsstrt = vsstrt2hw(par->vtotal+4);
+ custom.vsstop = vsstop2hw(par->vtotal+4);
+ break;
+ }
+ if (!(par->beamcon0 & BMC0_VARBEAMEN)) {
+ custom.htotal = htotal2hw(par->htotal);
+ custom.vtotal = vtotal2hw(par->vtotal);
+ custom.beamcon0 = BMC0_HARDDIS | BMC0_VARBEAMEN |
+ BMC0_VARVSYEN | BMC0_VARHSYEN | BMC0_VARCSYEN;
+ }
+ }
+ } else {
+ custom.dmacon = DMAF_SETCLR | DMAF_RASTER | DMAF_SPRITE;
+ red = palette[0].red;
+ green = palette[0].green;
+ blue = palette[0].blue;
+ if (!IS_OCS) {
+ custom.hsstrt = hsstrt2hw(par->hsstrt);
+ custom.hsstop = hsstop2hw(par->hsstop);
+ custom.vsstrt = vsstrt2hw(par->vsstrt);
+ custom.vsstop = vsstop2hw(par->vsstop);
+ custom.beamcon0 = par->beamcon0;
+ }
+ }
+#if defined(CONFIG_AMIFB_AGA)
+ if (IS_AGA) {
+ custom.bplcon3 = bplcon3;
+ custom.color[0] = rgb2hw8_high(red, green, blue);
+ custom.bplcon3 = bplcon3 | BPC3_LOCT;
+ custom.color[0] = rgb2hw8_low(red, green, blue);
+ custom.bplcon3 = bplcon3;
+ } else
+#endif
+ {
+#if defined(CONFIG_AMIFB_ECS)
+ if (par->bplcon0 & BPC0_SHRES) {
+ u_short color, mask;
+ int i;
+
+ mask = 0x3333;
+ color = rgb2hw2(red, green, blue);
+ for (i = 12; i >= 0; i -= 4)
+ custom.color[i] = ecs_palette[i] = (ecs_palette[i] & mask) | color;
+ mask <<=2; color >>= 2;
+ for (i = 3; i >= 0; i--)
+ custom.color[i] = ecs_palette[i] = (ecs_palette[i] & mask) | color;
+ } else
+#endif
+ custom.color[0] = rgb2hw4(red, green, blue);
+ }
+ is_blanked = do_blank > 0 ? do_blank : 0;
}
+ /*
+ * Flash the cursor (called by VBlank interrupt)
+ */
-static int amifb_switch(int con)
+static int ami_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix, int con)
{
- /* Do we have to save the colormap? */
- if (disp[currcon].cmap.len)
- do_fb_get_cmap(&disp[currcon].cmap, &disp[currcon].var, 1);
+ struct amiga_fb_par *par = ¤tpar;
- do_fb_set_var(&disp[con].var, 1);
- currcon = con;
- /* Install new colormap */
- do_install_cmap(con);
- return(0);
-}
+ fix->crsr_width = fix->crsr_xsize = par->crsr.width;
+ fix->crsr_height = fix->crsr_ysize = par->crsr.height;
+ fix->crsr_color1 = 17;
+ fix->crsr_color2 = 18;
+ return 0;
+}
+
+static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data, int con)
+{
+ struct amiga_fb_par *par = ¤tpar;
+ register u_short *lspr, *sspr;
+ register u_long datawords asm ("d2");
+ register short delta;
+ register u_char color;
+ short height, width, bits, words;
+ int i, size, alloc;
+
+ size = par->crsr.height*par->crsr.width;
+ alloc = var->height*var->width;
+ var->height = par->crsr.height;
+ var->width = par->crsr.width;
+ var->xspot = par->crsr.spot_x;
+ var->yspot = par->crsr.spot_y;
+ if (size > var->height*var->width)
+ return -ENAMETOOLONG;
+ if ((i = verify_area(VERIFY_WRITE, (void *)data, size)))
+ return i;
+ delta = 1<<par->crsr.fmode;
+ lspr = lofsprite + (delta<<1);
+ if (par->bplcon0 & BPC0_LACE)
+ sspr = shfsprite + (delta<<1);
+ else
+ sspr = 0;
+ for (height = (short)var->height-1; height >= 0; height--) {
+ bits = 0; words = delta; datawords = 0;
+ for (width = (short)var->width-1; width >= 0; width--) {
+ if (bits == 0) {
+ bits = 16; --words;
+ asm volatile ("movew %1@(%3:w:2),%0 ; swap %0 ; movew %1@+,%0"
+ : "=d" (datawords), "=a" (lspr) : "1" (lspr), "d" (delta));
+ }
+ --bits;
+ asm volatile (
+ "clrb %0 ; swap %1 ; lslw #1,%1 ; roxlb #1,%0 ; "
+ "swap %1 ; lslw #1,%1 ; roxlb #1,%0"
+ : "=d" (color), "=d" (datawords) : "1" (datawords));
+ put_fs_byte(color, data++);
+ }
+ if (bits > 0) {
+ --words; ++lspr;
+ }
+ while (--words >= 0)
+ ++lspr;
+ asm volatile ("lea %0@(%4:w:2),%0 ; tstl %1 ; jeq 1f ; exg %0,%1\n1:"
+ : "=a" (lspr), "=a" (sspr) : "0" (lspr), "1" (sspr), "d" (delta));
+ }
+ return 0;
+}
+
+static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data, int con)
+{
+ struct amiga_fb_par *par = ¤tpar;
+ register u_short *lspr, *sspr;
+ register u_long datawords asm ("d2");
+ register short delta;
+ u_short fmode;
+ short height, width, bits, words;
+ int i;
+ if (!var->width)
+ return -EINVAL;
+ else if (var->width <= 16)
+ fmode = TAG_FMODE_1;
+ else if (var->width <= 32)
+ fmode = TAG_FMODE_2;
+ else if (var->width <= 64)
+ fmode = TAG_FMODE_4;
+ else
+ return -EINVAL;
+ if (fmode > maxfmode)
+ return -EINVAL;
+ if (!var->height)
+ return -EINVAL;
+ if ((i = verify_area(VERIFY_READ, (void *)data, var->width*var->height)))
+ return i;
+ delta = 1<<fmode;
+ lofsprite = shfsprite = (u_short *)spritememory;
+ lspr = lofsprite + (delta<<1);
+ if (par->bplcon0 & BPC0_LACE) {
+ if (((var->height+4)<<fmode<<2) > SPRITEMEMSIZE)
+ return -EINVAL;
+ memset(lspr, 0, (var->height+4)<<fmode<<2);
+ shfsprite += ((var->height+5)&-2)<<fmode;
+ sspr = shfsprite + (delta<<1);
+ } else {
+ if (((var->height+2)<<fmode<<2) > SPRITEMEMSIZE)
+ return -EINVAL;
+ memset(lspr, 0, (var->height+2)<<fmode<<2);
+ sspr = 0;
+ }
+ for (height = (short)var->height-1; height >= 0; height--) {
+ bits = 16; words = delta; datawords = 0;
+ for (width = (short)var->width-1; width >= 0; width--) {
+ asm volatile (
+ "lsrb #1,%2 ; roxlw #1,%0 ; swap %0 ; "
+ "lsrb #1,%2 ; roxlw #1,%0 ; swap %0"
+ : "=d" (datawords) : "0" (datawords), "d" ((u_long)(get_fs_byte(data++))));
+ if (--bits == 0) {
+ bits = 16; --words;
+ asm volatile ("swap %2 ; movew %2,%0@(%3:w:2) ; swap %2 ; movew %2,%0@+"
+ : "=a" (lspr) : "0" (lspr), "d" (datawords), "d" (delta));
+ }
+ }
+ if (bits < 16) {
+ --words;
+ asm volatile (
+ "swap %2 ; lslw %4,%2 ; movew %2,%0@(%3:w:2) ; "
+ "swap %2 ; lslw %4,%2 ; movew %2,%0@+"
+ : "=a" (lspr) : "0" (lspr), "d" (datawords), "d" (delta), "d" (bits));
+ }
+ while (--words >= 0)
+ asm volatile ("moveql #0,%%d0 ; movew %%d0,%0@(%2:w:2) ; movew %%d0,%0@+"
+ : "=a" (lspr) : "0" (lspr), "d" (delta) : "d0");
+ asm volatile ("lea %0@(%4:w:2),%0 ; tstl %1 ; jeq 1f ; exg %0,%1\n1:"
+ : "=a" (lspr), "=a" (sspr) : "0" (lspr), "1" (sspr), "d" (delta));
+ }
+ par->crsr.height = var->height;
+ par->crsr.width = var->width;
+ par->crsr.spot_x = var->xspot;
+ par->crsr.spot_y = var->yspot;
+ par->crsr.fmode = fmode;
+ if (IS_AGA) {
+ par->fmode &= ~(FMODE_SPAGEM | FMODE_SPR32);
+ par->fmode |= sprfetchmode[fmode];
+ custom.fmode = par->fmode;
+ }
+ return 0;
+}
+
+static int ami_get_cursorstate(struct fb_cursorstate *state, int con)
+{
+ struct amiga_fb_par *par = ¤tpar;
+
+ state->xoffset = par->crsr.crsr_x;
+ state->yoffset = par->crsr.crsr_y;
+ state->mode = cursormode;
+ return 0;
+}
+
+static int ami_set_cursorstate(struct fb_cursorstate *state, int con)
+{
+ struct amiga_fb_par *par = ¤tpar;
+
+ par->crsr.crsr_x = state->xoffset;
+ par->crsr.crsr_y = state->yoffset;
+ if ((cursormode = state->mode) == FB_CURSOR_OFF)
+ cursorstate = -1;
+ do_cursor = 1;
+ return 0;
+}
+
+static void ami_set_sprite(void)
+{
+ struct amiga_fb_par *par = ¤tpar;
+ copins *copl, *cops;
+ u_short hs, vs, ve;
+ u_long pl, ps, pt;
+ short mx, my;
+
+ cops = copdisplay.list[currentcop][0];
+ copl = copdisplay.list[currentcop][1];
+ ps = pl = ZTWO_PADDR(dummysprite);
+ mx = par->crsr.crsr_x-par->crsr.spot_x;
+ my = par->crsr.crsr_y-par->crsr.spot_y;
+ if (!(par->vmode & FB_VMODE_YWRAP)) {
+ mx -= par->xoffset;
+ my -= par->yoffset;
+ }
+ if (!is_blanked && cursorstate > 0 && par->crsr.height > 0 &&
+ mx > -(short)par->crsr.width && mx < par->xres &&
+ my > -(short)par->crsr.height && my < par->yres) {
+ pl = ZTWO_PADDR(lofsprite);
+ hs = par->diwstrt_h + (mx<<par->clk_shift) - 4;
+ vs = par->diwstrt_v + (my<<par->line_shift);
+ ve = vs + (par->crsr.height<<par->line_shift);
+ if (par->bplcon0 & BPC0_LACE) {
+ ps = ZTWO_PADDR(shfsprite);
+ lofsprite[0] = spr2hw_pos(vs, hs);
+ shfsprite[0] = spr2hw_pos(vs+1, hs);
+ if (mod2(vs)) {
+ lofsprite[1<<par->crsr.fmode] = spr2hw_ctl(vs, hs, ve);
+ shfsprite[1<<par->crsr.fmode] = spr2hw_ctl(vs+1, hs, ve+1);
+ pt = pl; pl = ps; ps = pt;
+ } else {
+ lofsprite[1<<par->crsr.fmode] = spr2hw_ctl(vs, hs, ve+1);
+ shfsprite[1<<par->crsr.fmode] = spr2hw_ctl(vs+1, hs, ve);
+ }
+ } else {
+ lofsprite[0] = spr2hw_pos(vs, hs) | (IS_AGA && (par->fmode & FMODE_BSCAN2) ? 0x80 : 0);
+ lofsprite[1<<par->crsr.fmode] = spr2hw_ctl(vs, hs, ve);
+ }
+ }
+ copl[cop_spr0ptrh].w[1] = highw(pl);
+ copl[cop_spr0ptrl].w[1] = loww(pl);
+ if (par->bplcon0 & BPC0_LACE) {
+ cops[cop_spr0ptrh].w[1] = highw(ps);
+ cops[cop_spr0ptrl].w[1] = loww(ps);
+ }
+}
- /*
- * Update the `var' structure (called by fbcon.c)
- *
- * This call looks only at yoffset and the FB_VMODE_YWRAP flag in `var'.
- * Since it's called by a kernel driver, no range checking is done.
- */
+ /*
+ * Initialise the Copper Initialisation List
+ */
-static int amifb_updatevar(int con)
+static void ami_init_copper(void)
{
- do_vmode = 0;
- current_par.yoffset = disp[con].var.yoffset;
- current_par.vmode = disp[con].var.vmode;
- current_par.bplpt0 = ZTWO_PADDR((u_long)videomemory+
- current_par.yoffset*current_par.next_line);
- do_vmode = 1;
- return(0);
-}
+ copins *cop = copdisplay.init;
+ u_long p;
+ int i;
+ if (!IS_OCS) {
+ (cop++)->l = CMOVE(BPC0_COLOR | BPC0_SHRES | BPC0_ECSENA, bplcon0);
+ (cop++)->l = CMOVE(0x0181, diwstrt);
+ (cop++)->l = CMOVE(0x0281, diwstop);
+ (cop++)->l = CMOVE(0x0000, diwhigh);
+ } else
+ (cop++)->l = CMOVE(BPC0_COLOR, bplcon0);
+ p = ZTWO_PADDR(dummysprite);
+ for (i = 0; i < 8; i++) {
+ (cop++)->l = CMOVE(0, spr[i].pos);
+ (cop++)->l = CMOVE(highw(p), sprpt[i]);
+ (cop++)->l = CMOVE2(loww(p), sprpt[i]);
+ }
- /*
- * Blank the display.
- */
+ (cop++)->l = CMOVE(IF_SETCLR | IF_COPER, intreq);
+ copdisplay.wait = cop;
+ (cop++)->l = CEND;
+ (cop++)->l = CMOVE(0, copjmp2);
+ cop->l = CEND;
-static void amifb_blank(int blank)
-{
- do_blank = blank ? 1 : -1;
+ custom.cop1lc = (u_short *)ZTWO_PADDR(copdisplay.init);
+ custom.copjmp1 = 0;
}
+static void ami_reinit_copper(void)
+{
+ struct amiga_fb_par *par = ¤tpar;
- /*
- * VBlank Display Interrupt
- */
+ copdisplay.init[cip_bplcon0].w[1] = ~(BPC0_BPU3 | BPC0_BPU2 | BPC0_BPU1 | BPC0_BPU0) & par->bplcon0;
+ copdisplay.wait->l = CWAIT(32, par->diwstrt_v-4);
+}
-static void amifb_interrupt(int irq, struct pt_regs *fp, void *dummy)
-{
- static int is_laced = 0;
+ /*
+ * Build the Copper List
+ */
+static void ami_build_copper(void)
+{
+ struct amiga_fb_par *par = ¤tpar;
+ copins *copl, *cops;
+ u_long p;
+
+ currentcop = 1 - currentcop;
+
+ copl = copdisplay.list[currentcop][1];
+
+ (copl++)->l = CWAIT(0, 10);
+ (copl++)->l = CMOVE(par->bplcon0, bplcon0);
+ (copl++)->l = CMOVE(0, sprpt[0]);
+ (copl++)->l = CMOVE2(0, sprpt[0]);
+
+ if (par->bplcon0 & BPC0_LACE) {
+ cops = copdisplay.list[currentcop][0];
+
+ (cops++)->l = CWAIT(0, 10);
+ (cops++)->l = CMOVE(par->bplcon0, bplcon0);
+ (cops++)->l = CMOVE(0, sprpt[0]);
+ (cops++)->l = CMOVE2(0, sprpt[0]);
+
+ (copl++)->l = CMOVE(diwstrt2hw(par->diwstrt_h, par->diwstrt_v+1), diwstrt);
+ (copl++)->l = CMOVE(diwstop2hw(par->diwstop_h, par->diwstop_v+1), diwstop);
+ (cops++)->l = CMOVE(diwstrt2hw(par->diwstrt_h, par->diwstrt_v), diwstrt);
+ (cops++)->l = CMOVE(diwstop2hw(par->diwstop_h, par->diwstop_v), diwstop);
+ if (!IS_OCS) {
+ (copl++)->l = CMOVE(diwhigh2hw(par->diwstrt_h, par->diwstrt_v+1,
+ par->diwstop_h, par->diwstop_v+1), diwhigh);
+ (cops++)->l = CMOVE(diwhigh2hw(par->diwstrt_h, par->diwstrt_v,
+ par->diwstop_h, par->diwstop_v), diwhigh);
+#if 0
+ if (par->beamcon0 & BMC0_VARBEAMEN) {
+ (copl++)->l = CMOVE(vtotal2hw(par->vtotal), vtotal);
+ (copl++)->l = CMOVE(vbstrt2hw(par->vbstrt+1), vbstrt);
+ (copl++)->l = CMOVE(vbstop2hw(par->vbstop+1), vbstop);
+ (cops++)->l = CMOVE(vtotal2hw(par->vtotal), vtotal);
+ (cops++)->l = CMOVE(vbstrt2hw(par->vbstrt), vbstrt);
+ (cops++)->l = CMOVE(vbstop2hw(par->vbstop), vbstop);
+ }
+#endif
+ }
+ p = ZTWO_PADDR(copdisplay.list[currentcop][0]);
+ (copl++)->l = CMOVE(highw(p), cop2lc);
+ (copl++)->l = CMOVE2(loww(p), cop2lc);
+ p = ZTWO_PADDR(copdisplay.list[currentcop][1]);
+ (cops++)->l = CMOVE(highw(p), cop2lc);
+ (cops++)->l = CMOVE2(loww(p), cop2lc);
+ copdisplay.rebuild[0] = cops;
+ } else {
+ (copl++)->l = CMOVE(diwstrt2hw(par->diwstrt_h, par->diwstrt_v), diwstrt);
+ (copl++)->l = CMOVE(diwstop2hw(par->diwstop_h, par->diwstop_v), diwstop);
+ if (!IS_OCS) {
+ (copl++)->l = CMOVE(diwhigh2hw(par->diwstrt_h, par->diwstrt_v,
+ par->diwstop_h, par->diwstop_v), diwhigh);
#if 0
- /*
- * This test should be here, in case current_par isn't initialized yet
- *
- * Fortunately only do_flashcursor() will be called in that case, and
- * currently that function doesn't use current_par. But this may change
- * in future...
- */
- if (!current_par_valid)
- return;
+ if (par->beamcon0 & BMC0_VARBEAMEN) {
+ (copl++)->l = CMOVE(vtotal2hw(par->vtotal), vtotal);
+ (copl++)->l = CMOVE(vbstrt2hw(par->vbstrt), vbstrt);
+ (copl++)->l = CMOVE(vbstop2hw(par->vbstop), vbstop);
+ }
#endif
+ }
+ }
+ copdisplay.rebuild[1] = copl;
- /*
- * If interlaced, only change the display on a long frame
- */
-
- if (!is_laced || custom.vposr & 0x8000) {
- if (do_vmode) {
- fbhw->do_vmode();
- do_vmode = 0;
- is_laced = (current_par.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED;
- }
- if (do_movecursor) {
- fbhw->do_movecursor();
- do_movecursor = 0;
- }
- }
- if (do_blank) {
- fbhw->do_blank(do_blank > 0 ? 1 : 0);
- do_blank = 0;
- }
- if (!is_blanked)
- fbhw->do_flashcursor();
-}
-
-
- /*
- * A strtok which returns empty strings, too
- */
-
-static char * strtoke(char * s,const char * ct)
-{
- char *sbegin, *send;
- static char *ssave = NULL;
-
- sbegin = s ? s : ssave;
- if (!sbegin)
- return(NULL);
- if (*sbegin == '\0') {
- ssave = NULL;
- return(NULL);
- }
- send = strpbrk(sbegin, ct);
- if (send && *send != '\0')
- *send++ = '\0';
- ssave = send;
- return(sbegin);
-}
-
-
- /*
- * Get a Video Modes
- */
-
-static int get_video_mode(const char *name)
-{
- int i;
-
- for (i = 1; i < NUM_PREDEF_MODES; i++)
- if (!strcmp(name, amiga_fb_modenames[i]))
- return(i);
- return(0);
-}
-
-
- /*
- * Check the Default Video Mode
- */
+ ami_update_par();
+ ami_rebuild_copper();
+}
-static void check_default_mode(void)
+ /*
+ * Rebuild the Copper List
+ *
+ * We only change the things that are not static
+ */
+
+static void ami_rebuild_copper(void)
{
- struct fb_var_screeninfo var;
+ struct amiga_fb_par *par = ¤tpar;
+ copins *copl, *cops;
+ u_short line, h_end1, h_end2;
+ short i;
+ u_long p;
- /* First check the user supplied or system default video mode */
- if (amifb_mode) {
- var = amiga_fb_predefined[amifb_mode];
- var.activate = FB_ACTIVATE_TEST;
- if (!do_fb_set_var(&var, 1))
- goto found_video_mode;
- }
-
- /* Try some other modes... */
- printk("Can't use default video mode. Probing video modes...\n");
- for (amifb_mode = 1; amifb_mode < NUM_PREDEF_MODES; amifb_mode++) {
- var = amiga_fb_predefined[amifb_mode];
- var.activate = FB_ACTIVATE_TEST;
- if (!do_fb_set_var(&var, 1))
- goto found_video_mode;
- }
- panic("Can't find any usable video mode");
+ if (IS_AGA && maxfmode + par->clk_shift == 0)
+ h_end1 = par->diwstrt_h-64;
+ else
+ h_end1 = par->htotal-32;
+ h_end2 = par->ddfstop+64;
+
+ ami_set_sprite();
-found_video_mode:
- amiga_fb_predefined[0] = var;
+ copl = copdisplay.rebuild[1];
+ p = par->bplpt0;
+ if (par->vmode & FB_VMODE_YWRAP) {
+ if ((par->vyres-par->yoffset) != 1 || !mod2(par->diwstrt_v)) {
+ if (par->yoffset > par->vyres-par->yres) {
+ for (i = 0; i < (short)par->bpp; i++, p += par->next_plane) {
+ (copl++)->l = CMOVE(highw(p), bplpt[i]);
+ (copl++)->l = CMOVE2(loww(p), bplpt[i]);
+ }
+ line = par->diwstrt_v + ((par->vyres-par->yoffset)<<par->line_shift) - 1;
+ while (line >= 512) {
+ (copl++)->l = CWAIT(h_end1, 510);
+ line -= 512;
+ }
+ if (line >= 510 && IS_AGA && maxfmode + par->clk_shift == 0)
+ (copl++)->l = CWAIT(h_end1, line);
+ else
+ (copl++)->l = CWAIT(h_end2, line);
+ p = par->bplpt0wrap;
+ }
+ } else p = par->bplpt0wrap;
+ }
+ for (i = 0; i < (short)par->bpp; i++, p += par->next_plane) {
+ (copl++)->l = CMOVE(highw(p), bplpt[i]);
+ (copl++)->l = CMOVE2(loww(p), bplpt[i]);
+ }
+ copl->l = CEND;
+
+ if (par->bplcon0 & BPC0_LACE) {
+ cops = copdisplay.rebuild[0];
+ p = par->bplpt0;
+ if (mod2(par->diwstrt_v))
+ p -= par->next_line;
+ else
+ p += par->next_line;
+ if (par->vmode & FB_VMODE_YWRAP) {
+ if ((par->vyres-par->yoffset) != 1 || mod2(par->diwstrt_v)) {
+ if (par->yoffset > par->vyres-par->yres+1) {
+ for (i = 0; i < (short)par->bpp; i++, p += par->next_plane) {
+ (cops++)->l = CMOVE(highw(p), bplpt[i]);
+ (cops++)->l = CMOVE2(loww(p), bplpt[i]);
+ }
+ line = par->diwstrt_v + ((par->vyres-par->yoffset)<<par->line_shift) - 2;
+ while (line >= 512) {
+ (cops++)->l = CWAIT(h_end1, 510);
+ line -= 512;
+ }
+ if (line > 510 && IS_AGA && maxfmode + par->clk_shift == 0)
+ (cops++)->l = CWAIT(h_end1, line);
+ else
+ (cops++)->l = CWAIT(h_end2, line);
+ p = par->bplpt0wrap;
+ if (mod2(par->diwstrt_v+par->vyres-par->yoffset))
+ p -= par->next_line;
+ else
+ p += par->next_line;
+ }
+ } else p = par->bplpt0wrap - par->next_line;
+ }
+ for (i = 0; i < (short)par->bpp; i++, p += par->next_plane) {
+ (cops++)->l = CMOVE(highw(p), bplpt[i]);
+ (cops++)->l = CMOVE2(loww(p), bplpt[i]);
+ }
+ cops->l = CEND;
+ }
}
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TCL-scripts by Sam Shen, slshen@lbl.gov