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Commit | Line | Data |
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1da177e4 LT |
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 | */ | |
c55377ee PM |
10 | #ifndef __ASM_POWERPC_FLOPPY_H |
11 | #define __ASM_POWERPC_FLOPPY_H | |
88ced031 | 12 | #ifdef __KERNEL__ |
1da177e4 | 13 | |
1da177e4 LT |
14 | #include <asm/machdep.h> |
15 | ||
c55377ee PM |
16 | #define fd_inb(port) inb_p(port) |
17 | #define fd_outb(value,port) outb_p(value,port) | |
1da177e4 LT |
18 | |
19 | #define fd_enable_dma() enable_dma(FLOPPY_DMA) | |
20 | #define fd_disable_dma() disable_dma(FLOPPY_DMA) | |
c55377ee | 21 | #define fd_request_dma() request_dma(FLOPPY_DMA, "floppy") |
1da177e4 LT |
22 | #define fd_free_dma() free_dma(FLOPPY_DMA) |
23 | #define fd_clear_dma_ff() clear_dma_ff(FLOPPY_DMA) | |
c55377ee PM |
24 | #define fd_set_dma_mode(mode) set_dma_mode(FLOPPY_DMA, mode) |
25 | #define fd_set_dma_count(count) set_dma_count(FLOPPY_DMA, count) | |
1da177e4 LT |
26 | #define fd_enable_irq() enable_irq(FLOPPY_IRQ) |
27 | #define fd_disable_irq() disable_irq(FLOPPY_IRQ) | |
28 | #define fd_cacheflush(addr,size) /* nothing */ | |
29 | #define fd_request_irq() request_irq(FLOPPY_IRQ, floppy_interrupt, \ | |
6714465e | 30 | IRQF_DISABLED, "floppy", NULL) |
1da177e4 LT |
31 | #define fd_free_irq() free_irq(FLOPPY_IRQ, NULL); |
32 | ||
33 | #ifdef CONFIG_PCI | |
34 | ||
35 | #include <linux/pci.h> | |
b239cbe9 | 36 | #include <asm/ppc-pci.h> /* for ppc64_isabridge_dev */ |
1da177e4 | 37 | |
c55377ee | 38 | #define fd_dma_setup(addr,size,mode,io) powerpc_fd_dma_setup(addr,size,mode,io) |
1da177e4 | 39 | |
c55377ee PM |
40 | static __inline__ int powerpc_fd_dma_setup(char *addr, unsigned long size, |
41 | int mode, int io) | |
1da177e4 LT |
42 | { |
43 | static unsigned long prev_size; | |
44 | static dma_addr_t bus_addr = 0; | |
45 | static char *prev_addr; | |
46 | static int prev_dir; | |
47 | int dir; | |
48 | ||
49 | dir = (mode == DMA_MODE_READ) ? PCI_DMA_FROMDEVICE : PCI_DMA_TODEVICE; | |
50 | ||
51 | if (bus_addr | |
52 | && (addr != prev_addr || size != prev_size || dir != prev_dir)) { | |
53 | /* different from last time -- unmap prev */ | |
b239cbe9 | 54 | pci_unmap_single(ppc64_isabridge_dev, bus_addr, prev_size, prev_dir); |
1da177e4 LT |
55 | bus_addr = 0; |
56 | } | |
57 | ||
c55377ee | 58 | if (!bus_addr) /* need to map it */ |
b239cbe9 | 59 | bus_addr = pci_map_single(ppc64_isabridge_dev, addr, size, dir); |
1da177e4 LT |
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 | ||
79 | __inline__ void virtual_dma_init(void) | |
80 | { | |
81 | /* Nothing to do on PowerPC */ | |
82 | } | |
83 | ||
84 | static int FDC1 = 0x3f0; | |
85 | static int FDC2 = -1; | |
86 | ||
87 | /* | |
88 | * Again, the CMOS information not available | |
89 | */ | |
90 | #define FLOPPY0_TYPE 6 | |
91 | #define FLOPPY1_TYPE 0 | |
92 | ||
93 | #define N_FDC 2 /* Don't change this! */ | |
94 | #define N_DRIVE 8 | |
95 | ||
96 | #define FLOPPY_MOTOR_MASK 0xf0 | |
97 | ||
98 | /* | |
99 | * The PowerPC has no problems with floppy DMA crossing 64k borders. | |
100 | */ | |
101 | #define CROSS_64KB(a,s) (0) | |
102 | ||
103 | #define EXTRA_FLOPPY_PARAMS | |
104 | ||
88ced031 | 105 | #endif /* __KERNEL__ */ |
c55377ee | 106 | #endif /* __ASM_POWERPC_FLOPPY_H */ |