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1da177e4 LT |
1 | /* |
2 | * This file is subject to the terms and conditions of the GNU General Public | |
3 | * License. See the file "COPYING" in the main directory of this archive | |
4 | * for more details. | |
5 | * | |
6 | * Copyright (C) 1996, 1997, 1998, 2003 by Ralf Baechle | |
7 | */ | |
8 | #ifndef __ASM_MACH_GENERIC_FLOPPY_H | |
9 | #define __ASM_MACH_GENERIC_FLOPPY_H | |
10 | ||
11 | #include <linux/delay.h> | |
12 | #include <linux/init.h> | |
13 | #include <linux/ioport.h> | |
14 | #include <linux/sched.h> | |
15 | #include <linux/linkage.h> | |
16 | #include <linux/types.h> | |
17 | #include <linux/mm.h> | |
18 | ||
19 | #include <asm/bootinfo.h> | |
20 | #include <asm/cachectl.h> | |
21 | #include <asm/dma.h> | |
22 | #include <asm/floppy.h> | |
23 | #include <asm/io.h> | |
24 | #include <asm/irq.h> | |
25 | #include <asm/pgtable.h> | |
26 | ||
27 | /* | |
28 | * How to access the FDC's registers. | |
29 | */ | |
30 | static inline unsigned char fd_inb(unsigned int port) | |
31 | { | |
32 | return inb_p(port); | |
33 | } | |
34 | ||
35 | static inline void fd_outb(unsigned char value, unsigned int port) | |
36 | { | |
37 | outb_p(value, port); | |
38 | } | |
39 | ||
40 | /* | |
41 | * How to access the floppy DMA functions. | |
42 | */ | |
43 | static inline void fd_enable_dma(void) | |
44 | { | |
45 | enable_dma(FLOPPY_DMA); | |
46 | } | |
47 | ||
48 | static inline void fd_disable_dma(void) | |
49 | { | |
50 | disable_dma(FLOPPY_DMA); | |
51 | } | |
52 | ||
53 | static inline int fd_request_dma(void) | |
54 | { | |
55 | return request_dma(FLOPPY_DMA, "floppy"); | |
56 | } | |
57 | ||
58 | static inline void fd_free_dma(void) | |
59 | { | |
60 | free_dma(FLOPPY_DMA); | |
61 | } | |
62 | ||
63 | static inline void fd_clear_dma_ff(void) | |
64 | { | |
65 | clear_dma_ff(FLOPPY_DMA); | |
66 | } | |
67 | ||
68 | static inline void fd_set_dma_mode(char mode) | |
69 | { | |
70 | set_dma_mode(FLOPPY_DMA, mode); | |
71 | } | |
72 | ||
73 | static inline void fd_set_dma_addr(char *addr) | |
74 | { | |
75 | set_dma_addr(FLOPPY_DMA, (unsigned long) addr); | |
76 | } | |
77 | ||
78 | static inline void fd_set_dma_count(unsigned int count) | |
79 | { | |
80 | set_dma_count(FLOPPY_DMA, count); | |
81 | } | |
82 | ||
83 | static inline int fd_get_dma_residue(void) | |
84 | { | |
85 | return get_dma_residue(FLOPPY_DMA); | |
86 | } | |
87 | ||
88 | static inline void fd_enable_irq(void) | |
89 | { | |
90 | enable_irq(FLOPPY_IRQ); | |
91 | } | |
92 | ||
93 | static inline void fd_disable_irq(void) | |
94 | { | |
95 | disable_irq(FLOPPY_IRQ); | |
96 | } | |
97 | ||
98 | static inline int fd_request_irq(void) | |
99 | { | |
100 | return request_irq(FLOPPY_IRQ, floppy_interrupt, | |
f40298fd | 101 | IRQF_DISABLED, "floppy", NULL); |
1da177e4 LT |
102 | } |
103 | ||
104 | static inline void fd_free_irq(void) | |
105 | { | |
106 | free_irq(FLOPPY_IRQ, NULL); | |
107 | } | |
108 | ||
109 | #define fd_free_irq() free_irq(FLOPPY_IRQ, NULL); | |
110 | ||
111 | ||
112 | static inline unsigned long fd_getfdaddr1(void) | |
113 | { | |
114 | return 0x3f0; | |
115 | } | |
116 | ||
117 | static inline unsigned long fd_dma_mem_alloc(unsigned long size) | |
118 | { | |
119 | unsigned long mem; | |
120 | ||
121 | mem = __get_dma_pages(GFP_KERNEL, get_order(size)); | |
122 | ||
123 | return mem; | |
124 | } | |
125 | ||
126 | static inline void fd_dma_mem_free(unsigned long addr, unsigned long size) | |
127 | { | |
128 | free_pages(addr, get_order(size)); | |
129 | } | |
130 | ||
131 | static inline unsigned long fd_drive_type(unsigned long n) | |
132 | { | |
133 | if (n == 0) | |
134 | return 4; /* 3,5", 1.44mb */ | |
135 | ||
136 | return 0; | |
137 | } | |
138 | ||
139 | #endif /* __ASM_MACH_GENERIC_FLOPPY_H */ |