| 1 | |
| 2 | * Architecture specific parts of the Floppy driver
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| 3 | *
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| 4 | * This file is subject to the terms and conditions of the GNU General Public
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| 5 | * License. See the file "COPYING" in the main directory of this archive
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| 6 | * for more details.
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| 7 | *
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| 8 | * Copyright (C) 1995
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| 9 |
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| 10 | #ifndef __ASM_ALPHA_FLOPPY_H
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| 11 | #define __ASM_ALPHA_FLOPPY_H
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| 12 |
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| 13 |
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| 14 | #define fd_inb(base, reg) inb_p((base) + (reg))
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| 15 | #define fd_outb(value, base, reg) outb_p(value, (base) + (reg))
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| 16 |
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| 17 | #define fd_enable_dma() enable_dma(FLOPPY_DMA)
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| 18 | #define fd_disable_dma() disable_dma(FLOPPY_DMA)
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| 19 | #define fd_request_dma() request_dma(FLOPPY_DMA,"floppy")
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| 20 | #define fd_free_dma() free_dma(FLOPPY_DMA)
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| 21 | #define fd_clear_dma_ff() clear_dma_ff(FLOPPY_DMA)
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| 22 | #define fd_set_dma_mode(mode) set_dma_mode(FLOPPY_DMA,mode)
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| 23 | #define fd_set_dma_addr(addr) set_dma_addr(FLOPPY_DMA,isa_virt_to_bus(addr))
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| 24 | #define fd_set_dma_count(count) set_dma_count(FLOPPY_DMA,count)
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| 25 | #define fd_enable_irq() enable_irq(FLOPPY_IRQ)
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| 26 | #define fd_disable_irq() disable_irq(FLOPPY_IRQ)
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| 27 | #define fd_request_irq() request_irq(FLOPPY_IRQ, floppy_interrupt,\
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| 28 | 0, "floppy", NULL)
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| 29 | #define fd_free_irq() free_irq(FLOPPY_IRQ, NULL)
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| 30 |
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| 31 | #ifdef CONFIG_PCI
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| 32 |
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| 33 | #include <linux/pci.h>
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| 34 |
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| 35 | #define fd_dma_setup(addr,size,mode,io) alpha_fd_dma_setup(addr,size,mode,io)
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| 36 |
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| 37 | static __inline__ int
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| 38 | alpha_fd_dma_setup(char *addr, unsigned long size, int mode, int io)
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| 39 | {
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| 40 | static unsigned long prev_size;
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| 41 | static dma_addr_t bus_addr = 0;
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| 42 | static char *prev_addr;
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| 43 | static int prev_dir;
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| 44 | int dir;
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| 45 |
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| 46 | dir = (mode != DMA_MODE_READ) ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
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| 47 |
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| 48 | if (bus_addr
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| 49 | && (addr != prev_addr || size != prev_size || dir != prev_dir)) {
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| 50 |
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| 51 | dma_unmap_single(&isa_bridge->dev, bus_addr, prev_size,
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| 52 | prev_dir);
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| 53 | bus_addr = 0;
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| 54 | }
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| 55 |
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| 56 | if (!bus_addr)
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| 57 | bus_addr = dma_map_single(&isa_bridge->dev, addr, size, dir);
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| 58 |
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| 59 |
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| 60 | prev_addr = addr;
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| 61 | prev_size = size;
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| 62 | prev_dir = dir;
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| 63 |
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| 64 | fd_clear_dma_ff();
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| 65 | fd_set_dma_mode(mode);
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| 66 | set_dma_addr(FLOPPY_DMA, bus_addr);
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| 67 | fd_set_dma_count(size);
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| 68 | virtual_dma_port = io;
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| 69 | fd_enable_dma();
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| 70 |
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| 71 | return 0;
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| 72 | }
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| 73 |
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| 74 | #endif
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| 75 |
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| 76 | __inline__ void virtual_dma_init(void)
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| 77 | {
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| 78 |
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| 79 | }
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| 80 |
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| 81 | static int FDC1 = 0x3f0;
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| 82 | static int FDC2 = -1;
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| 83 |
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| 84 | |
| 85 | * Again, the CMOS information doesn't work on the alpha..
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| 86 |
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| 87 | #define FLOPPY0_TYPE 6
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| 88 | #define FLOPPY1_TYPE 0
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| 89 |
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| 90 | #define N_FDC 2
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| 91 | #define N_DRIVE 8
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| 92 |
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| 93 | #define EXTRA_FLOPPY_PARAMS
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| 94 |
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| 95 | #endif
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