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Diffstat (limited to 'include/asm-m68k/sun3xflop.h')
-rw-r--r--include/asm-m68k/sun3xflop.h263
1 files changed, 0 insertions, 263 deletions
diff --git a/include/asm-m68k/sun3xflop.h b/include/asm-m68k/sun3xflop.h
deleted file mode 100644
index 32c45f84ac6..00000000000
--- a/include/asm-m68k/sun3xflop.h
+++ /dev/null
@@ -1,263 +0,0 @@
-/* sun3xflop.h: Sun3/80 specific parts of the floppy driver.
- *
- * Derived partially from asm-sparc/floppy.h, which is:
- * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
- *
- * Sun3x version 2/4/2000 Sam Creasey (sammy@sammy.net)
- */
-
-#ifndef __ASM_SUN3X_FLOPPY_H
-#define __ASM_SUN3X_FLOPPY_H
-
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/system.h>
-#include <asm/irq.h>
-#include <asm/sun3x.h>
-
-/* default interrupt vector */
-#define SUN3X_FDC_IRQ 0x40
-
-/* some constants */
-#define FCR_TC 0x1
-#define FCR_EJECT 0x2
-#define FCR_MTRON 0x4
-#define FCR_DSEL1 0x8
-#define FCR_DSEL0 0x10
-
-/* We don't need no stinkin' I/O port allocation crap. */
-#undef release_region
-#undef request_region
-#define release_region(X, Y) do { } while(0)
-#define request_region(X, Y, Z) (1)
-
-struct sun3xflop_private {
- volatile unsigned char *status_r;
- volatile unsigned char *data_r;
- volatile unsigned char *fcr_r;
- volatile unsigned char *fvr_r;
- unsigned char fcr;
-} sun3x_fdc;
-
-/* Super paranoid... */
-#undef HAVE_DISABLE_HLT
-
-/* Routines unique to each controller type on a Sun. */
-static unsigned char sun3x_82072_fd_inb(int port)
-{
- static int once = 0;
-// udelay(5);
- switch(port & 7) {
- default:
- printk("floppy: Asked to read unknown port %d\n", port);
- panic("floppy: Port bolixed.");
- case 4: /* FD_STATUS */
- return (*sun3x_fdc.status_r) & ~STATUS_DMA;
- case 5: /* FD_DATA */
- return (*sun3x_fdc.data_r);
- case 7: /* FD_DIR */
- /* ugly hack, I can't find a way to actually detect the disk */
- if(!once) {
- once = 1;
- return 0x80;
- }
- return 0;
- };
- panic("sun_82072_fd_inb: How did I get here?");
-}
-
-static void sun3x_82072_fd_outb(unsigned char value, int port)
-{
-// udelay(5);
- switch(port & 7) {
- default:
- printk("floppy: Asked to write to unknown port %d\n", port);
- panic("floppy: Port bolixed.");
- case 2: /* FD_DOR */
- /* Oh geese, 82072 on the Sun has no DOR register,
- * so we make do with taunting the FCR.
- *
- * ASSUMPTIONS: There will only ever be one floppy
- * drive attached to a Sun controller
- * and it will be at drive zero.
- */
-
- {
- unsigned char fcr = sun3x_fdc.fcr;
-
- if(value & 0x10) {
- fcr |= (FCR_DSEL0 | FCR_MTRON);
- } else
- fcr &= ~(FCR_DSEL0 | FCR_MTRON);
-
-
- if(fcr != sun3x_fdc.fcr) {
- *(sun3x_fdc.fcr_r) = fcr;
- sun3x_fdc.fcr = fcr;
- }
- }
- break;
- case 5: /* FD_DATA */
- *(sun3x_fdc.data_r) = value;
- break;
- case 7: /* FD_DCR */
- *(sun3x_fdc.status_r) = value;
- break;
- case 4: /* FD_STATUS */
- *(sun3x_fdc.status_r) = value;
- break;
- };
- return;
-}
-
-
-asmlinkage irqreturn_t sun3xflop_hardint(int irq, void *dev_id)
-{
- register unsigned char st;
-
-#undef TRACE_FLPY_INT
-#define NO_FLOPPY_ASSEMBLER
-
-#ifdef TRACE_FLPY_INT
- static int calls=0;
- static int bytes=0;
- static int dma_wait=0;
-#endif
- if(!doing_pdma) {
- floppy_interrupt(irq, dev_id);
- return IRQ_HANDLED;
- }
-
-// printk("doing pdma\n");// st %x\n", sun_fdc->status_82072);
-
-#ifdef TRACE_FLPY_INT
- if(!calls)
- bytes = virtual_dma_count;
-#endif
-
- {
- register int lcount;
- register char *lptr;
-
- for(lcount=virtual_dma_count, lptr=virtual_dma_addr;
- lcount; lcount--, lptr++) {
-/* st=fd_inb(virtual_dma_port+4) & 0x80 ; */
- st = *(sun3x_fdc.status_r);
-/* if(st != 0xa0) */
-/* break; */
-
- if((st & 0x80) == 0) {
- virtual_dma_count = lcount;
- virtual_dma_addr = lptr;
- return IRQ_HANDLED;
- }
-
- if((st & 0x20) == 0)
- break;
-
- if(virtual_dma_mode)
-/* fd_outb(*lptr, virtual_dma_port+5); */
- *(sun3x_fdc.data_r) = *lptr;
- else
-/* *lptr = fd_inb(virtual_dma_port+5); */
- *lptr = *(sun3x_fdc.data_r);
- }
-
- virtual_dma_count = lcount;
- virtual_dma_addr = lptr;
-/* st = fd_inb(virtual_dma_port+4); */
- st = *(sun3x_fdc.status_r);
- }
-
-#ifdef TRACE_FLPY_INT
- calls++;
-#endif
-// printk("st=%02x\n", st);
- if(st == 0x20)
- return IRQ_HANDLED;
- if(!(st & 0x20)) {
- virtual_dma_residue += virtual_dma_count;
- virtual_dma_count=0;
- doing_pdma = 0;
-
-#ifdef TRACE_FLPY_INT
- printk("count=%x, residue=%x calls=%d bytes=%x dma_wait=%d\n",
- virtual_dma_count, virtual_dma_residue, calls, bytes,
- dma_wait);
- calls = 0;
- dma_wait=0;
-#endif
-
- floppy_interrupt(irq, dev_id);
- return IRQ_HANDLED;
- }
-
-
-#ifdef TRACE_FLPY_INT
- if(!virtual_dma_count)
- dma_wait++;
-#endif
- return IRQ_HANDLED;
-}
-
-static int sun3xflop_request_irq(void)
-{
- static int once = 0;
- int error;
-
- if(!once) {
- once = 1;
- error = request_irq(FLOPPY_IRQ, sun3xflop_hardint,
- IRQF_DISABLED, "floppy", NULL);
- return ((error == 0) ? 0 : -1);
- } else return 0;
-}
-
-static void __init floppy_set_flags(int *ints,int param, int param2);
-
-static int sun3xflop_init(void)
-{
- if(FLOPPY_IRQ < 0x40)
- FLOPPY_IRQ = SUN3X_FDC_IRQ;
-
- sun3x_fdc.status_r = (volatile unsigned char *)SUN3X_FDC;
- sun3x_fdc.data_r = (volatile unsigned char *)(SUN3X_FDC+1);
- sun3x_fdc.fcr_r = (volatile unsigned char *)SUN3X_FDC_FCR;
- sun3x_fdc.fvr_r = (volatile unsigned char *)SUN3X_FDC_FVR;
- sun3x_fdc.fcr = 0;
-
- /* Last minute sanity check... */
- if(*sun3x_fdc.status_r == 0xff) {
- return -1;
- }
-
- *sun3x_fdc.fvr_r = FLOPPY_IRQ;
-
- *sun3x_fdc.fcr_r = FCR_TC;
- udelay(10);
- *sun3x_fdc.fcr_r = 0;
-
- /* Success... */
- floppy_set_flags(NULL, 1, FD_BROKEN_DCL); // I don't know how to detect this.
- allowed_drive_mask = 0x01;
- return (int) SUN3X_FDC;
-}
-
-/* I'm not precisely sure this eject routine works */
-static int sun3x_eject(void)
-{
- if(MACH_IS_SUN3X) {
-
- sun3x_fdc.fcr |= (FCR_DSEL0 | FCR_EJECT);
- *(sun3x_fdc.fcr_r) = sun3x_fdc.fcr;
- udelay(10);
- sun3x_fdc.fcr &= ~(FCR_DSEL0 | FCR_EJECT);
- *(sun3x_fdc.fcr_r) = sun3x_fdc.fcr;
- }
-
- return 0;
-}
-
-#define fd_eject(drive) sun3x_eject()
-
-#endif /* !(__ASM_SUN3X_FLOPPY_H) */