patch-2.3.12 linux/drivers/misc/parport_arc.c

• Lines: 161
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.3.11/linux/drivers/misc/parport_arc.c
• Orig date: Wed Jul 21 15:46:48 1999

diff -u --recursive --new-file v2.3.11/linux/drivers/misc/parport_arc.c linux/drivers/misc/parport_arc.c
@@ -1,160 +0,0 @@
-/* Low-level parallel port routines for Archimedes onboard hardware
- *
- * Author: Phil Blundell <Philip.Blundell@pobox.com>
- */
-
-/* This driver is for the parallel port hardware found on Acorn's old
- * range of Archimedes machines.  The A5000 and newer systems have PC-style
- * I/O hardware and should use the parport_pc driver instead.
- *
- * The Acorn printer port hardware is very simple.  There is a single 8-bit
- * write-only latch for the data port and control/status bits are handled
- * with various auxilliary input and output lines.  The port is not
- * bidirectional, does not support any modes other than SPP, and has only
- * a subset of the standard printer control lines connected.
- */
-
-#include <linux/threads.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/interrupt.h>
-#include <linux/ioport.h>
-#include <linux/kernel.h>
-#include <linux/malloc.h>
-#include <linux/parport.h>
-
-#include <asm/ptrace.h>
-#include <asm/io.h>
-#include <asm/arch/oldlatches.h>
-#include <asm/arch/irqs.h>
-
-#define DATA_ADDRESS    0x3350010
-
-/* This is equivalent to the above and only used for request_region. */
-#define PORT_BASE       0x80000000 | ((DATA_ADDRESS - IO_BASE) >> 2)
-
-/* The hardware can't read from the data latch, so we must use a soft
-   copy. */
-static unsigned char data_copy;
-
-/* These are pretty simple. We know the irq is never shared and the
-   kernel does all the magic that's required. */
-static void arc_enable_irq(struct parport *p)
-{
-	enable_irq(p->irq);
-}
-
-static void arc_disable_irq(struct parport *p)
-{
-	disable_irq(p->irq);
-}
-
-static void arc_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
-	parport_generic_irq(irq, (struct parport *) dev_id, regs);
-}
-
-static void arc_write_data(struct parport *p, unsigned char data)
-{
-	data_copy = data;
-	outb_t(data, DATA_LATCH);
-}
-
-static unsigned char arc_read_data(struct parport *p)
-{
-	return data_copy;
-}
-
-static void arc_inc_use_count(void)
-{
-#ifdef MODULE
-	MOD_INC_USE_COUNT;
-#endif
-}
-
-static void arc_dec_use_count(void)
-{
-#ifdef MODULE
-	MOD_DEC_USE_COUNT;
-#endif
-}
-
-static void arc_fill_inode(struct inode *inode, int fill)
-{
-#ifdef MODULE
-	if (fill)
-		MOD_INC_USE_COUNT;
-	else
-		MOD_DEC_USE_COUNT;
-#endif
-}
-
-static struct parport_operations parport_arc_ops = 
-{
-	arc_write_data,
-	arc_read_data,
-
-	arc_write_control,
-	arc_read_control,
-	arc_frob_control,
-
-	arc_read_status,
-
-	arc_enable_irq,
-	arc_disable_irq,
-
-	arc_data_forward,
-	arc_data_reverse,
-
-	arc_interrupt,
-
-	arc_init_state,
-	arc_save_state,
-	arc_restore_state,
-
-	arc_inc_use_count,
-	arc_dec_use_count,
-	arc_fill_inode,
-
-	parport_ieee1284_epp_write_data,
-	parport_ieee1284_epp_read_data,
-	parport_ieee1284_epp_write_addr,
-	parport_ieee1284_epp_read_addr,
-
-	parport_ieee1284_ecp_write_data,
-	parport_ieee1284_ecp_read_data,
-	parport_ieee1284_ecp_write_addr,
-	
-	parport_ieee1284_write_compat,
-	parport_ieee1284_read_nibble,
-	parport_ieee1284_read_byte,
-};
-
-/* --- Initialisation code -------------------------------- */
-
-int parport_arc_init(void)
-{
-	/* Archimedes hardware provides only one port, at a fixed address */
-	struct parport *p;
-
-	if (check_region(PORT_BASE, 1))
-		return 0;
-
-	p = parport_register_port (PORT_BASE, IRQ_PRINTERACK,
-				   PARPORT_DMA_NONE, &parport_arc_ops);
-
-	if (!p)
-		return 0;
-
-	p->modes = PARPORT_MODE_ARCSPP;
-	p->size = 1;
-
-	printk(KERN_INFO "%s: Archimedes on-board port, using irq %d\n",
-	       p->irq);
-	parport_proc_register(p);
-
-	/* Tell the high-level drivers about the port. */
-	parport_announce_port (p);
-
-	return 1;
-}