1/* 2 * Architecture specific parts of the Floppy driver 3 * 4 * This file is subject to the terms and conditions of the GNU General Public 5 * License. See the file "COPYING" in the main directory of this archive 6 * for more details. 7 * 8 * Copyright (C) 1995 9 */ 10#ifndef __ASM_PPC64_FLOPPY_H 11#define __ASM_PPC64_FLOPPY_H 12 13#include <linux/config.h> 14 15#define fd_inb(port) inb_p(port) 16#define fd_outb(port,value) outb_p(port,value) 17 18#define fd_enable_dma() enable_dma(FLOPPY_DMA) 19#define fd_disable_dma() disable_dma(FLOPPY_DMA) 20#define fd_request_dma() request_dma(FLOPPY_DMA,"floppy") 21#define fd_free_dma() free_dma(FLOPPY_DMA) 22#define fd_clear_dma_ff() clear_dma_ff(FLOPPY_DMA) 23#define fd_set_dma_mode(mode) set_dma_mode(FLOPPY_DMA,mode) 24#define fd_set_dma_count(count) set_dma_count(FLOPPY_DMA,count) 25#define fd_enable_irq() enable_irq(FLOPPY_IRQ) 26#define fd_disable_irq() disable_irq(FLOPPY_IRQ) 27#define fd_cacheflush(addr,size) /* nothing */ 28#define fd_request_irq() request_irq(FLOPPY_IRQ, floppy_interrupt, \ 29 SA_INTERRUPT|SA_SAMPLE_RANDOM, \ 30 "floppy", NULL) 31#define fd_free_irq() free_irq(FLOPPY_IRQ, NULL); 32 33#ifdef CONFIG_PCI 34 35#include <linux/pci.h> 36 37#define fd_dma_setup(addr,size,mode,io) ppc64_fd_dma_setup(addr,size,mode,io) 38 39static __inline__ int 40ppc64_fd_dma_setup(char *addr, unsigned long size, int mode, int io) 41{ 42 static unsigned long prev_size; 43 static dma_addr_t bus_addr = 0; 44 static char *prev_addr; 45 static int prev_dir; 46 int dir; 47 48 dir = (mode == DMA_MODE_READ) ? PCI_DMA_FROMDEVICE : PCI_DMA_TODEVICE; 49 50 if (bus_addr 51 && (addr != prev_addr || size != prev_size || dir != prev_dir)) { 52 /* different from last time -- unmap prev */ 53 pci_unmap_single(NULL, bus_addr, prev_size, prev_dir); 54 bus_addr = 0; 55 } 56 57 if (!bus_addr) /* need to map it */ { 58 bus_addr = pci_map_single(NULL, addr, size, dir); 59 } 60 61 /* remember this one as prev */ 62 prev_addr = addr; 63 prev_size = size; 64 prev_dir = dir; 65 66 fd_clear_dma_ff(); 67 fd_cacheflush(addr, size); 68 fd_set_dma_mode(mode); 69 set_dma_addr(FLOPPY_DMA, bus_addr); 70 fd_set_dma_count(size); 71 virtual_dma_port = io; 72 fd_enable_dma(); 73 74 return 0; 75} 76 77#endif /* CONFIG_PCI */ 78 79static int FDC1 = 0x3f0; 80static int FDC2 = -1; 81 82/* 83 * Again, the CMOS information not available 84 */ 85#define FLOPPY0_TYPE 6 86#define FLOPPY1_TYPE 0 87 88#define N_FDC 2 /* Don't change this! */ 89#define N_DRIVE 8 90 91#define FLOPPY_MOTOR_MASK 0xf0 92 93/* 94 * The PowerPC has no problems with floppy DMA crossing 64k borders. 95 */ 96#define CROSS_64KB(a,s) (0) 97 98#define EXTRA_FLOPPY_PARAMS 99 100#endif /* __ASM_PPC64_FLOPPY_H */ 101