patch-2.4.2 linux/include/asm-cris/sv_addr_ag.h

• Lines: 130
• Date: Thu Feb 8 16:32:44 2001
• Orig file: v2.4.1/linux/include/asm-cris/sv_addr_ag.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.1/linux/include/asm-cris/sv_addr_ag.h linux/include/asm-cris/sv_addr_ag.h
@@ -0,0 +1,129 @@
+/*!**************************************************************************
+*!                                                            
+*! MACROS:
+*!   IO_MASK(reg,field)
+*!   IO_STATE(reg,field,state)
+*!   IO_EXTRACT(reg,field,val)
+*!   IO_STATE_VALUE(reg,field,state)
+*!   IO_BITNR(reg,field)
+*!   IO_WIDTH(reg,field)
+*!   IO_FIELD(reg,field,val)
+*!   IO_RD(reg)
+*!   All moderegister addresses and fields of these.
+*!
+*!**************************************************************************/
+
+#ifndef __sv_addr_ag_h__
+#define __sv_addr_ag_h__
+
+
+#define __test_sv_addr__ 0
+
+/*------------------------------------------------------------
+!* General macros to manipulate moderegisters.
+!*-----------------------------------------------------------*/
+
+/* IO_MASK returns a mask for a specified bitfield in a register.
+   Note that this macro doesn't work when field width is 32 bits. */
+#define IO_MASK(reg,field) \
+    ( ( ( 1 << reg##__##field##__WIDTH ) - 1 ) << reg##__##field##__BITNR )
+
+/* IO_STATE returns a constant corresponding to a one of the symbolic
+   states that the bitfield can have. (Shifted to correct position)  */
+#define IO_STATE(reg,field,state) \
+    ( reg##__##field##__##state << reg##__##field##__BITNR )
+
+/* IO_EXTRACT returns the masked and shifted value corresponding to the
+   bitfield can have. */
+#define IO_EXTRACT(reg,field,val) ( (( ( ( 1 << reg##__##field##__WIDTH ) \
+     - 1 ) << reg##__##field##__BITNR ) & (val)) >> reg##__##field##__BITNR )
+
+/* IO_STATE_VALUE returns a constant corresponding to a one of the symbolic
+   states that the bitfield can have. (Not shifted)  */
+#define IO_STATE_VALUE(reg,field,state) ( reg##__##field##__##state )
+
+/* IO_FIELD shifts the val parameter to be aligned with the bitfield
+   specified. */
+#define IO_FIELD(reg,field,val) ((val) << reg##__##field##__BITNR)
+
+/* IO_BITNR returns the starting bitnumber of a bitfield. Bit 0 is
+   LSB and the returned bitnumber is LSB of the field. */
+#define IO_BITNR(reg,field) (reg##__##field##__BITNR)
+
+/* IO_WIDTH returns the width, in bits, of a bitfield. */
+#define IO_WIDTH(reg,field) (reg##__##field##__WIDTH)
+
+/*--- Obsolete. Kept for backw compatibility. ---*/
+/* Reads (or writes) a byte/uword/udword from the specified mode
+   register. */
+#define IO_RD(reg) (*(volatile u32*)(reg))
+#define IO_RD_B(reg) (*(volatile u8*)(reg))
+#define IO_RD_W(reg) (*(volatile u16*)(reg))
+#define IO_RD_D(reg) (*(volatile u32*)(reg))
+
+/*------------------------------------------------------------
+!* Start addresses of the different memory areas.
+!*-----------------------------------------------------------*/
+
+#define MEM_CSE0_START (0x00000000)
+#define MEM_CSE1_START (0x04000000)
+#define MEM_CSR0_START (0x08000000)
+#define MEM_CSR1_START (0x0c000000)
+#define MEM_CSP0_START (0x10000000)
+#define MEM_CSP1_START (0x14000000)
+#define MEM_CSP2_START (0x18000000)
+#define MEM_CSP3_START (0x1c000000)
+#define MEM_CSP4_START (0x20000000)
+#define MEM_CSP5_START (0x24000000)
+#define MEM_CSP6_START (0x28000000)
+#define MEM_CSP7_START (0x2c000000)
+#define MEM_DRAM_START (0x40000000)
+
+#define MEM_NON_CACHEABLE (0x80000000)
+
+/*------------------------------------------------------------
+!* Type casts used in mode register macros, making pointer
+!* dereferencing possible. Empty in assembler.
+!*-----------------------------------------------------------*/
+
+#ifndef __ASSEMBLER__
+# define  IO_TYPECAST_UDWORD  (volatile u32*)
+# define  IO_TYPECAST_RO_UDWORD  (const volatile u32*)
+# define  IO_TYPECAST_UWORD  (volatile u16*)
+# define  IO_TYPECAST_RO_UWORD  (const volatile u16*)
+# define  IO_TYPECAST_BYTE  (volatile u8*)
+# define  IO_TYPECAST_RO_BYTE  (const volatile u8*)
+#else
+# define  IO_TYPECAST_UDWORD
+# define  IO_TYPECAST_RO_UDWORD
+# define  IO_TYPECAST_UWORD
+# define  IO_TYPECAST_RO_UWORD
+# define  IO_TYPECAST_BYTE
+# define  IO_TYPECAST_RO_BYTE
+#endif
+
+/*------------------------------------------------------------*/
+
+#include "sv_addr.agh"
+
+#if __test_sv_addr__
+/* IO_MASK( R_BUS_CONFIG , CE ) */
+IO_MASK( R_WAITSTATES , SRAM_WS )
+IO_MASK( R_TEST , W32 )
+
+IO_STATE( R_BUS_CONFIG, CE, DISABLE )
+IO_STATE( R_BUS_CONFIG, CE, ENABLE )
+
+IO_STATE( R_DRAM_TIMING, REF, IVAL2 )
+
+IO_MASK( R_DRAM_TIMING, REF )
+
+IO_MASK( R_EXT_DMA_0_STAT, TFR_COUNT ) >> IO_BITNR( R_EXT_DMA_0_STAT, TFR_COUNT )
+
+IO_RD(R_EXT_DMA_0_STAT) & IO_MASK( R_EXT_DMA_0_STAT, S ) 
+   == IO_STATE( R_EXT_DMA_0_STAT, S, STARTED )
+#endif
+
+
+#endif  /* ifndef __sv_addr_ag_h__ */
+