x86: unify include/asm/floppy_32/64.h
Same file, except for whitespace, comment formatting and: 32-bit: if((unsigned int) addr >= (unsigned int) high_memory) 64-bit: if((unsigned long) addr >= (unsigned long) high_memory) where the latter can be used safely for both. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Conflicts: include/asm-x86/floppy_32.h include/asm-x86/floppy_64.h
This commit is contained in:
Thomas Gleixner
parent
2dc27f01ec
commit
b515e4767f
3 changed files with 277 additions and 563 deletions
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@ -1,5 +1,278 @@
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#ifdef CONFIG_X86_32
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# include "floppy_32.h"
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#else
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# include "floppy_64.h"
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/*
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* Architecture specific parts of the Floppy driver
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1995
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*/
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#ifndef _ASM_X86_FLOPPY_H
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#define _ASM_X86_FLOPPY_H
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#include <linux/vmalloc.h>
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/*
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* The DMA channel used by the floppy controller cannot access data at
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* addresses >= 16MB
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*
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* Went back to the 1MB limit, as some people had problems with the floppy
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* driver otherwise. It doesn't matter much for performance anyway, as most
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* floppy accesses go through the track buffer.
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*/
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#define _CROSS_64KB(a,s,vdma) \
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(!(vdma) && ((unsigned long)(a)/K_64 != ((unsigned long)(a) + (s) - 1) / K_64))
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#define CROSS_64KB(a,s) _CROSS_64KB(a,s,use_virtual_dma & 1)
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#define SW fd_routine[use_virtual_dma&1]
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#define CSW fd_routine[can_use_virtual_dma & 1]
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#define fd_inb(port) inb_p(port)
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#define fd_outb(value,port) outb_p(value,port)
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#define fd_request_dma() CSW._request_dma(FLOPPY_DMA,"floppy")
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#define fd_free_dma() CSW._free_dma(FLOPPY_DMA)
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#define fd_enable_irq() enable_irq(FLOPPY_IRQ)
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#define fd_disable_irq() disable_irq(FLOPPY_IRQ)
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#define fd_free_irq() free_irq(FLOPPY_IRQ, NULL)
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#define fd_get_dma_residue() SW._get_dma_residue(FLOPPY_DMA)
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#define fd_dma_mem_alloc(size) SW._dma_mem_alloc(size)
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#define fd_dma_setup(addr, size, mode, io) SW._dma_setup(addr, size, mode, io)
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#define FLOPPY_CAN_FALLBACK_ON_NODMA
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static int virtual_dma_count;
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static int virtual_dma_residue;
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static char *virtual_dma_addr;
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static int virtual_dma_mode;
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static int doing_pdma;
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static irqreturn_t floppy_hardint(int irq, void *dev_id)
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{
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register unsigned char st;
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#undef TRACE_FLPY_INT
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#ifdef TRACE_FLPY_INT
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static int calls=0;
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static int bytes=0;
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static int dma_wait=0;
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#endif
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if (!doing_pdma)
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return floppy_interrupt(irq, dev_id);
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#ifdef TRACE_FLPY_INT
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if(!calls)
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bytes = virtual_dma_count;
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#endif
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{
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register int lcount;
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register char *lptr;
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st = 1;
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for(lcount=virtual_dma_count, lptr=virtual_dma_addr;
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lcount; lcount--, lptr++) {
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st=inb(virtual_dma_port+4) & 0xa0 ;
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if(st != 0xa0)
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break;
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if(virtual_dma_mode)
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outb_p(*lptr, virtual_dma_port+5);
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else
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*lptr = inb_p(virtual_dma_port+5);
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}
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virtual_dma_count = lcount;
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virtual_dma_addr = lptr;
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st = inb(virtual_dma_port+4);
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}
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#ifdef TRACE_FLPY_INT
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calls++;
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#endif
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if(st == 0x20)
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return IRQ_HANDLED;
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if(!(st & 0x20)) {
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virtual_dma_residue += virtual_dma_count;
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virtual_dma_count=0;
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#ifdef TRACE_FLPY_INT
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printk("count=%x, residue=%x calls=%d bytes=%d dma_wait=%d\n",
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virtual_dma_count, virtual_dma_residue, calls, bytes,
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dma_wait);
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calls = 0;
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dma_wait=0;
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#endif
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doing_pdma = 0;
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floppy_interrupt(irq, dev_id);
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return IRQ_HANDLED;
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}
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#ifdef TRACE_FLPY_INT
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if(!virtual_dma_count)
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dma_wait++;
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#endif
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return IRQ_HANDLED;
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}
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static void fd_disable_dma(void)
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{
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if(! (can_use_virtual_dma & 1))
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disable_dma(FLOPPY_DMA);
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doing_pdma = 0;
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virtual_dma_residue += virtual_dma_count;
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virtual_dma_count=0;
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}
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static int vdma_request_dma(unsigned int dmanr, const char * device_id)
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{
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return 0;
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}
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static void vdma_nop(unsigned int dummy)
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{
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}
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static int vdma_get_dma_residue(unsigned int dummy)
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{
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return virtual_dma_count + virtual_dma_residue;
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}
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static int fd_request_irq(void)
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{
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if(can_use_virtual_dma)
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return request_irq(FLOPPY_IRQ, floppy_hardint,
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IRQF_DISABLED, "floppy", NULL);
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else
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return request_irq(FLOPPY_IRQ, floppy_interrupt,
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IRQF_DISABLED, "floppy", NULL);
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}
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static unsigned long dma_mem_alloc(unsigned long size)
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{
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return __get_dma_pages(GFP_KERNEL|__GFP_NORETRY,get_order(size));
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}
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static unsigned long vdma_mem_alloc(unsigned long size)
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{
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return (unsigned long) vmalloc(size);
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}
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#define nodma_mem_alloc(size) vdma_mem_alloc(size)
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static void _fd_dma_mem_free(unsigned long addr, unsigned long size)
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{
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if((unsigned long) addr >= (unsigned long) high_memory)
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vfree((void *)addr);
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else
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free_pages(addr, get_order(size));
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}
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#define fd_dma_mem_free(addr, size) _fd_dma_mem_free(addr, size)
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static void _fd_chose_dma_mode(char *addr, unsigned long size)
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{
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if(can_use_virtual_dma == 2) {
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if((unsigned long) addr >= (unsigned long) high_memory ||
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isa_virt_to_bus(addr) >= 0x1000000 ||
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_CROSS_64KB(addr, size, 0))
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use_virtual_dma = 1;
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else
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use_virtual_dma = 0;
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} else {
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use_virtual_dma = can_use_virtual_dma & 1;
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}
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}
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#define fd_chose_dma_mode(addr, size) _fd_chose_dma_mode(addr, size)
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static int vdma_dma_setup(char *addr, unsigned long size, int mode, int io)
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{
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doing_pdma = 1;
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virtual_dma_port = io;
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virtual_dma_mode = (mode == DMA_MODE_WRITE);
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virtual_dma_addr = addr;
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virtual_dma_count = size;
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virtual_dma_residue = 0;
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return 0;
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}
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static int hard_dma_setup(char *addr, unsigned long size, int mode, int io)
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{
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#ifdef FLOPPY_SANITY_CHECK
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if (CROSS_64KB(addr, size)) {
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printk("DMA crossing 64-K boundary %p-%p\n", addr, addr+size);
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return -1;
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}
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#endif
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/* actual, physical DMA */
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doing_pdma = 0;
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clear_dma_ff(FLOPPY_DMA);
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set_dma_mode(FLOPPY_DMA,mode);
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set_dma_addr(FLOPPY_DMA,isa_virt_to_bus(addr));
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set_dma_count(FLOPPY_DMA,size);
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enable_dma(FLOPPY_DMA);
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return 0;
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}
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static struct fd_routine_l {
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int (*_request_dma)(unsigned int dmanr, const char * device_id);
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void (*_free_dma)(unsigned int dmanr);
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int (*_get_dma_residue)(unsigned int dummy);
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unsigned long (*_dma_mem_alloc) (unsigned long size);
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int (*_dma_setup)(char *addr, unsigned long size, int mode, int io);
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} fd_routine[] = {
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{
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request_dma,
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free_dma,
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get_dma_residue,
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dma_mem_alloc,
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hard_dma_setup
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},
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{
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vdma_request_dma,
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vdma_nop,
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vdma_get_dma_residue,
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vdma_mem_alloc,
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vdma_dma_setup
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}
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};
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static int FDC1 = 0x3f0;
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static int FDC2 = -1;
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/*
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* Floppy types are stored in the rtc's CMOS RAM and so rtc_lock
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* is needed to prevent corrupted CMOS RAM in case "insmod floppy"
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* coincides with another rtc CMOS user. Paul G.
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*/
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#define FLOPPY0_TYPE ({ \
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unsigned long flags; \
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unsigned char val; \
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spin_lock_irqsave(&rtc_lock, flags); \
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val = (CMOS_READ(0x10) >> 4) & 15; \
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spin_unlock_irqrestore(&rtc_lock, flags); \
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val; \
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})
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#define FLOPPY1_TYPE ({ \
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unsigned long flags; \
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unsigned char val; \
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spin_lock_irqsave(&rtc_lock, flags); \
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val = CMOS_READ(0x10) & 15; \
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spin_unlock_irqrestore(&rtc_lock, flags); \
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val; \
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})
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#define N_FDC 2
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#define N_DRIVE 8
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#define EXTRA_FLOPPY_PARAMS
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#endif /* _ASM_X86_FLOPPY_H */
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@ -1,280 +0,0 @@
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/*
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* Architecture specific parts of the Floppy driver
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1995
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*/
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#ifndef __ASM_I386_FLOPPY_H
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#define __ASM_I386_FLOPPY_H
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#include <linux/vmalloc.h>
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/*
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* The DMA channel used by the floppy controller cannot access data at
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* addresses >= 16MB
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*
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* Went back to the 1MB limit, as some people had problems with the floppy
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* driver otherwise. It doesn't matter much for performance anyway, as most
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* floppy accesses go through the track buffer.
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*/
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#define _CROSS_64KB(a,s,vdma) \
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(!(vdma) && ((unsigned long)(a)/K_64 != ((unsigned long)(a) + (s) - 1) / K_64))
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#define CROSS_64KB(a,s) _CROSS_64KB(a,s,use_virtual_dma & 1)
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#define SW fd_routine[use_virtual_dma&1]
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#define CSW fd_routine[can_use_virtual_dma & 1]
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#define fd_inb(port) inb_p(port)
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#define fd_outb(value,port) outb_p(value,port)
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#define fd_request_dma() CSW._request_dma(FLOPPY_DMA,"floppy")
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#define fd_free_dma() CSW._free_dma(FLOPPY_DMA)
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#define fd_enable_irq() enable_irq(FLOPPY_IRQ)
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#define fd_disable_irq() disable_irq(FLOPPY_IRQ)
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#define fd_free_irq() free_irq(FLOPPY_IRQ, NULL)
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#define fd_get_dma_residue() SW._get_dma_residue(FLOPPY_DMA)
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#define fd_dma_mem_alloc(size) SW._dma_mem_alloc(size)
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#define fd_dma_setup(addr, size, mode, io) SW._dma_setup(addr, size, mode, io)
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#define FLOPPY_CAN_FALLBACK_ON_NODMA
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static int virtual_dma_count;
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static int virtual_dma_residue;
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static char *virtual_dma_addr;
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static int virtual_dma_mode;
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static int doing_pdma;
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static irqreturn_t floppy_hardint(int irq, void *dev_id)
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{
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register unsigned char st;
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#undef TRACE_FLPY_INT
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#ifdef TRACE_FLPY_INT
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static int calls=0;
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static int bytes=0;
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static int dma_wait=0;
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#endif
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if (!doing_pdma)
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return floppy_interrupt(irq, dev_id);
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#ifdef TRACE_FLPY_INT
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if(!calls)
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bytes = virtual_dma_count;
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#endif
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{
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register int lcount;
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register char *lptr;
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st = 1;
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for(lcount=virtual_dma_count, lptr=virtual_dma_addr;
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lcount; lcount--, lptr++) {
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st=inb(virtual_dma_port+4) & 0xa0 ;
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if(st != 0xa0)
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break;
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if(virtual_dma_mode)
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outb_p(*lptr, virtual_dma_port+5);
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else
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*lptr = inb_p(virtual_dma_port+5);
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}
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virtual_dma_count = lcount;
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virtual_dma_addr = lptr;
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st = inb(virtual_dma_port+4);
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}
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#ifdef TRACE_FLPY_INT
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calls++;
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#endif
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if(st == 0x20)
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return IRQ_HANDLED;
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if(!(st & 0x20)) {
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virtual_dma_residue += virtual_dma_count;
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virtual_dma_count=0;
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#ifdef TRACE_FLPY_INT
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printk("count=%x, residue=%x calls=%d bytes=%d dma_wait=%d\n",
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virtual_dma_count, virtual_dma_residue, calls, bytes,
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dma_wait);
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calls = 0;
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dma_wait=0;
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#endif
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doing_pdma = 0;
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floppy_interrupt(irq, dev_id);
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return IRQ_HANDLED;
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}
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#ifdef TRACE_FLPY_INT
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if(!virtual_dma_count)
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dma_wait++;
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#endif
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return IRQ_HANDLED;
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}
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static void fd_disable_dma(void)
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{
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if(! (can_use_virtual_dma & 1))
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disable_dma(FLOPPY_DMA);
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doing_pdma = 0;
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virtual_dma_residue += virtual_dma_count;
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virtual_dma_count=0;
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}
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static int vdma_request_dma(unsigned int dmanr, const char * device_id)
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{
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return 0;
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}
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static void vdma_nop(unsigned int dummy)
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{
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}
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static int vdma_get_dma_residue(unsigned int dummy)
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{
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return virtual_dma_count + virtual_dma_residue;
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}
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static int fd_request_irq(void)
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{
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if(can_use_virtual_dma)
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return request_irq(FLOPPY_IRQ, floppy_hardint,
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IRQF_DISABLED, "floppy", NULL);
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else
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return request_irq(FLOPPY_IRQ, floppy_interrupt,
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IRQF_DISABLED, "floppy", NULL);
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}
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static unsigned long dma_mem_alloc(unsigned long size)
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{
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return __get_dma_pages(GFP_KERNEL | __GFP_NORETRY, get_order(size));
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}
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static unsigned long vdma_mem_alloc(unsigned long size)
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{
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return (unsigned long) vmalloc(size);
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}
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#define nodma_mem_alloc(size) vdma_mem_alloc(size)
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static void _fd_dma_mem_free(unsigned long addr, unsigned long size)
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{
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if((unsigned int) addr >= (unsigned int) high_memory)
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vfree((void *)addr);
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else
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free_pages(addr, get_order(size));
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}
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#define fd_dma_mem_free(addr, size) _fd_dma_mem_free(addr, size)
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static void _fd_chose_dma_mode(char *addr, unsigned long size)
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{
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if(can_use_virtual_dma == 2) {
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if((unsigned int) addr >= (unsigned int) high_memory ||
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isa_virt_to_bus(addr) >= 0x1000000 ||
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_CROSS_64KB(addr, size, 0))
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use_virtual_dma = 1;
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else
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use_virtual_dma = 0;
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} else {
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use_virtual_dma = can_use_virtual_dma & 1;
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}
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}
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#define fd_chose_dma_mode(addr, size) _fd_chose_dma_mode(addr, size)
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static int vdma_dma_setup(char *addr, unsigned long size, int mode, int io)
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{
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doing_pdma = 1;
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virtual_dma_port = io;
|
||||
virtual_dma_mode = (mode == DMA_MODE_WRITE);
|
||||
virtual_dma_addr = addr;
|
||||
virtual_dma_count = size;
|
||||
virtual_dma_residue = 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int hard_dma_setup(char *addr, unsigned long size, int mode, int io)
|
||||
{
|
||||
#ifdef FLOPPY_SANITY_CHECK
|
||||
if (CROSS_64KB(addr, size)) {
|
||||
printk("DMA crossing 64-K boundary %p-%p\n", addr, addr+size);
|
||||
return -1;
|
||||
}
|
||||
#endif
|
||||
/* actual, physical DMA */
|
||||
doing_pdma = 0;
|
||||
clear_dma_ff(FLOPPY_DMA);
|
||||
set_dma_mode(FLOPPY_DMA,mode);
|
||||
set_dma_addr(FLOPPY_DMA,isa_virt_to_bus(addr));
|
||||
set_dma_count(FLOPPY_DMA,size);
|
||||
enable_dma(FLOPPY_DMA);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct fd_routine_l {
|
||||
int (*_request_dma)(unsigned int dmanr, const char * device_id);
|
||||
void (*_free_dma)(unsigned int dmanr);
|
||||
int (*_get_dma_residue)(unsigned int dummy);
|
||||
unsigned long (*_dma_mem_alloc) (unsigned long size);
|
||||
int (*_dma_setup)(char *addr, unsigned long size, int mode, int io);
|
||||
} fd_routine[] = {
|
||||
{
|
||||
request_dma,
|
||||
free_dma,
|
||||
get_dma_residue,
|
||||
dma_mem_alloc,
|
||||
hard_dma_setup
|
||||
},
|
||||
{
|
||||
vdma_request_dma,
|
||||
vdma_nop,
|
||||
vdma_get_dma_residue,
|
||||
vdma_mem_alloc,
|
||||
vdma_dma_setup
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
static int FDC1 = 0x3f0;
|
||||
static int FDC2 = -1;
|
||||
|
||||
/*
|
||||
* Floppy types are stored in the rtc's CMOS RAM and so rtc_lock
|
||||
* is needed to prevent corrupted CMOS RAM in case "insmod floppy"
|
||||
* coincides with another rtc CMOS user. Paul G.
|
||||
*/
|
||||
#define FLOPPY0_TYPE ({ \
|
||||
unsigned long flags; \
|
||||
unsigned char val; \
|
||||
spin_lock_irqsave(&rtc_lock, flags); \
|
||||
val = (CMOS_READ(0x10) >> 4) & 15; \
|
||||
spin_unlock_irqrestore(&rtc_lock, flags); \
|
||||
val; \
|
||||
})
|
||||
|
||||
#define FLOPPY1_TYPE ({ \
|
||||
unsigned long flags; \
|
||||
unsigned char val; \
|
||||
spin_lock_irqsave(&rtc_lock, flags); \
|
||||
val = CMOS_READ(0x10) & 15; \
|
||||
spin_unlock_irqrestore(&rtc_lock, flags); \
|
||||
val; \
|
||||
})
|
||||
|
||||
#define N_FDC 2
|
||||
#define N_DRIVE 8
|
||||
|
||||
#define EXTRA_FLOPPY_PARAMS
|
||||
|
||||
#endif /* __ASM_I386_FLOPPY_H */
|
||||
|
|
@ -1,279 +0,0 @@
|
|||
/*
|
||||
* Architecture specific parts of the Floppy driver
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* Copyright (C) 1995
|
||||
*/
|
||||
#ifndef __ASM_X86_64_FLOPPY_H
|
||||
#define __ASM_X86_64_FLOPPY_H
|
||||
|
||||
#include <linux/vmalloc.h>
|
||||
|
||||
|
||||
/*
|
||||
* The DMA channel used by the floppy controller cannot access data at
|
||||
* addresses >= 16MB
|
||||
*
|
||||
* Went back to the 1MB limit, as some people had problems with the floppy
|
||||
* driver otherwise. It doesn't matter much for performance anyway, as most
|
||||
* floppy accesses go through the track buffer.
|
||||
*/
|
||||
#define _CROSS_64KB(a,s,vdma) \
|
||||
(!(vdma) && ((unsigned long)(a)/K_64 != ((unsigned long)(a) + (s) - 1) / K_64))
|
||||
|
||||
#define CROSS_64KB(a,s) _CROSS_64KB(a,s,use_virtual_dma & 1)
|
||||
|
||||
|
||||
#define SW fd_routine[use_virtual_dma&1]
|
||||
#define CSW fd_routine[can_use_virtual_dma & 1]
|
||||
|
||||
|
||||
#define fd_inb(port) inb_p(port)
|
||||
#define fd_outb(value,port) outb_p(value,port)
|
||||
|
||||
#define fd_request_dma() CSW._request_dma(FLOPPY_DMA,"floppy")
|
||||
#define fd_free_dma() CSW._free_dma(FLOPPY_DMA)
|
||||
#define fd_enable_irq() enable_irq(FLOPPY_IRQ)
|
||||
#define fd_disable_irq() disable_irq(FLOPPY_IRQ)
|
||||
#define fd_free_irq() free_irq(FLOPPY_IRQ, NULL)
|
||||
#define fd_get_dma_residue() SW._get_dma_residue(FLOPPY_DMA)
|
||||
#define fd_dma_mem_alloc(size) SW._dma_mem_alloc(size)
|
||||
#define fd_dma_setup(addr, size, mode, io) SW._dma_setup(addr, size, mode, io)
|
||||
|
||||
#define FLOPPY_CAN_FALLBACK_ON_NODMA
|
||||
|
||||
static int virtual_dma_count;
|
||||
static int virtual_dma_residue;
|
||||
static char *virtual_dma_addr;
|
||||
static int virtual_dma_mode;
|
||||
static int doing_pdma;
|
||||
|
||||
static irqreturn_t floppy_hardint(int irq, void *dev_id)
|
||||
{
|
||||
register unsigned char st;
|
||||
|
||||
#undef TRACE_FLPY_INT
|
||||
|
||||
#ifdef TRACE_FLPY_INT
|
||||
static int calls=0;
|
||||
static int bytes=0;
|
||||
static int dma_wait=0;
|
||||
#endif
|
||||
if (!doing_pdma)
|
||||
return floppy_interrupt(irq, dev_id);
|
||||
|
||||
#ifdef TRACE_FLPY_INT
|
||||
if(!calls)
|
||||
bytes = virtual_dma_count;
|
||||
#endif
|
||||
|
||||
{
|
||||
register int lcount;
|
||||
register char *lptr;
|
||||
|
||||
st = 1;
|
||||
for(lcount=virtual_dma_count, lptr=virtual_dma_addr;
|
||||
lcount; lcount--, lptr++) {
|
||||
st=inb(virtual_dma_port+4) & 0xa0 ;
|
||||
if(st != 0xa0)
|
||||
break;
|
||||
if(virtual_dma_mode)
|
||||
outb_p(*lptr, virtual_dma_port+5);
|
||||
else
|
||||
*lptr = inb_p(virtual_dma_port+5);
|
||||
}
|
||||
virtual_dma_count = lcount;
|
||||
virtual_dma_addr = lptr;
|
||||
st = inb(virtual_dma_port+4);
|
||||
}
|
||||
|
||||
#ifdef TRACE_FLPY_INT
|
||||
calls++;
|
||||
#endif
|
||||
if(st == 0x20)
|
||||
return IRQ_HANDLED;
|
||||
if(!(st & 0x20)) {
|
||||
virtual_dma_residue += virtual_dma_count;
|
||||
virtual_dma_count=0;
|
||||
#ifdef TRACE_FLPY_INT
|
||||
printk("count=%x, residue=%x calls=%d bytes=%d dma_wait=%d\n",
|
||||
virtual_dma_count, virtual_dma_residue, calls, bytes,
|
||||
dma_wait);
|
||||
calls = 0;
|
||||
dma_wait=0;
|
||||
#endif
|
||||
doing_pdma = 0;
|
||||
floppy_interrupt(irq, dev_id);
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
#ifdef TRACE_FLPY_INT
|
||||
if(!virtual_dma_count)
|
||||
dma_wait++;
|
||||
#endif
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static void fd_disable_dma(void)
|
||||
{
|
||||
if(! (can_use_virtual_dma & 1))
|
||||
disable_dma(FLOPPY_DMA);
|
||||
doing_pdma = 0;
|
||||
virtual_dma_residue += virtual_dma_count;
|
||||
virtual_dma_count=0;
|
||||
}
|
||||
|
||||
static int vdma_request_dma(unsigned int dmanr, const char * device_id)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void vdma_nop(unsigned int dummy)
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
static int vdma_get_dma_residue(unsigned int dummy)
|
||||
{
|
||||
return virtual_dma_count + virtual_dma_residue;
|
||||
}
|
||||
|
||||
|
||||
static int fd_request_irq(void)
|
||||
{
|
||||
if(can_use_virtual_dma)
|
||||
return request_irq(FLOPPY_IRQ, floppy_hardint,
|
||||
IRQF_DISABLED, "floppy", NULL);
|
||||
else
|
||||
return request_irq(FLOPPY_IRQ, floppy_interrupt,
|
||||
IRQF_DISABLED, "floppy", NULL);
|
||||
}
|
||||
|
||||
static unsigned long dma_mem_alloc(unsigned long size)
|
||||
{
|
||||
return __get_dma_pages(GFP_KERNEL|__GFP_NORETRY,get_order(size));
|
||||
}
|
||||
|
||||
|
||||
static unsigned long vdma_mem_alloc(unsigned long size)
|
||||
{
|
||||
return (unsigned long) vmalloc(size);
|
||||
|
||||
}
|
||||
|
||||
#define nodma_mem_alloc(size) vdma_mem_alloc(size)
|
||||
|
||||
static void _fd_dma_mem_free(unsigned long addr, unsigned long size)
|
||||
{
|
||||
if((unsigned long) addr >= (unsigned long) high_memory)
|
||||
vfree((void *)addr);
|
||||
else
|
||||
free_pages(addr, get_order(size));
|
||||
}
|
||||
|
||||
#define fd_dma_mem_free(addr, size) _fd_dma_mem_free(addr, size)
|
||||
|
||||
static void _fd_chose_dma_mode(char *addr, unsigned long size)
|
||||
{
|
||||
if(can_use_virtual_dma == 2) {
|
||||
if((unsigned long) addr >= (unsigned long) high_memory ||
|
||||
isa_virt_to_bus(addr) >= 0x1000000 ||
|
||||
_CROSS_64KB(addr, size, 0))
|
||||
use_virtual_dma = 1;
|
||||
else
|
||||
use_virtual_dma = 0;
|
||||
} else {
|
||||
use_virtual_dma = can_use_virtual_dma & 1;
|
||||
}
|
||||
}
|
||||
|
||||
#define fd_chose_dma_mode(addr, size) _fd_chose_dma_mode(addr, size)
|
||||
|
||||
|
||||
static int vdma_dma_setup(char *addr, unsigned long size, int mode, int io)
|
||||
{
|
||||
doing_pdma = 1;
|
||||
virtual_dma_port = io;
|
||||
virtual_dma_mode = (mode == DMA_MODE_WRITE);
|
||||
virtual_dma_addr = addr;
|
||||
virtual_dma_count = size;
|
||||
virtual_dma_residue = 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int hard_dma_setup(char *addr, unsigned long size, int mode, int io)
|
||||
{
|
||||
#ifdef FLOPPY_SANITY_CHECK
|
||||
if (CROSS_64KB(addr, size)) {
|
||||
printk("DMA crossing 64-K boundary %p-%p\n", addr, addr+size);
|
||||
return -1;
|
||||
}
|
||||
#endif
|
||||
/* actual, physical DMA */
|
||||
doing_pdma = 0;
|
||||
clear_dma_ff(FLOPPY_DMA);
|
||||
set_dma_mode(FLOPPY_DMA,mode);
|
||||
set_dma_addr(FLOPPY_DMA,isa_virt_to_bus(addr));
|
||||
set_dma_count(FLOPPY_DMA,size);
|
||||
enable_dma(FLOPPY_DMA);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct fd_routine_l {
|
||||
int (*_request_dma)(unsigned int dmanr, const char * device_id);
|
||||
void (*_free_dma)(unsigned int dmanr);
|
||||
int (*_get_dma_residue)(unsigned int dummy);
|
||||
unsigned long (*_dma_mem_alloc) (unsigned long size);
|
||||
int (*_dma_setup)(char *addr, unsigned long size, int mode, int io);
|
||||
} fd_routine[] = {
|
||||
{
|
||||
request_dma,
|
||||
free_dma,
|
||||
get_dma_residue,
|
||||
dma_mem_alloc,
|
||||
hard_dma_setup
|
||||
},
|
||||
{
|
||||
vdma_request_dma,
|
||||
vdma_nop,
|
||||
vdma_get_dma_residue,
|
||||
vdma_mem_alloc,
|
||||
vdma_dma_setup
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
static int FDC1 = 0x3f0;
|
||||
static int FDC2 = -1;
|
||||
|
||||
/*
|
||||
* Floppy types are stored in the rtc's CMOS RAM and so rtc_lock
|
||||
* is needed to prevent corrupted CMOS RAM in case "insmod floppy"
|
||||
* coincides with another rtc CMOS user. Paul G.
|
||||
*/
|
||||
#define FLOPPY0_TYPE ({ \
|
||||
unsigned long flags; \
|
||||
unsigned char val; \
|
||||
spin_lock_irqsave(&rtc_lock, flags); \
|
||||
val = (CMOS_READ(0x10) >> 4) & 15; \
|
||||
spin_unlock_irqrestore(&rtc_lock, flags); \
|
||||
val; \
|
||||
})
|
||||
|
||||
#define FLOPPY1_TYPE ({ \
|
||||
unsigned long flags; \
|
||||
unsigned char val; \
|
||||
spin_lock_irqsave(&rtc_lock, flags); \
|
||||
val = CMOS_READ(0x10) & 15; \
|
||||
spin_unlock_irqrestore(&rtc_lock, flags); \
|
||||
val; \
|
||||
})
|
||||
|
||||
#define N_FDC 2
|
||||
#define N_DRIVE 8
|
||||
|
||||
#define EXTRA_FLOPPY_PARAMS
|
||||
|
||||
#endif /* __ASM_X86_64_FLOPPY_H */
|
||||
Loading…
Reference in a new issue