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/ioport.h>
13 #include <linux/sched.h>
14 #include <linux/linkage.h>
15 #include <linux/types.h>
16 #include <linux/mm.h>
17
18 #include <asm/bootinfo.h>
19 #include <asm/cachectl.h>
20 #include <asm/dma.h>
21 #include <asm/floppy.h>
22 #include <asm/io.h>
23 #include <asm/irq.h>
24
25 /*
26 * How to access the FDC's registers.
27 */
fd_inb(unsigned int base,unsigned int reg)28 static inline unsigned char fd_inb(unsigned int base, unsigned int reg)
29 {
30 return inb_p(base + reg);
31 }
32
fd_outb(unsigned char value,unsigned int base,unsigned int reg)33 static inline void fd_outb(unsigned char value, unsigned int base, unsigned int reg)
34 {
35 outb_p(value, base + reg);
36 }
37
38 /*
39 * How to access the floppy DMA functions.
40 */
fd_enable_dma(void)41 static inline void fd_enable_dma(void)
42 {
43 enable_dma(FLOPPY_DMA);
44 }
45
fd_disable_dma(void)46 static inline void fd_disable_dma(void)
47 {
48 disable_dma(FLOPPY_DMA);
49 }
50
fd_request_dma(void)51 static inline int fd_request_dma(void)
52 {
53 return request_dma(FLOPPY_DMA, "floppy");
54 }
55
fd_free_dma(void)56 static inline void fd_free_dma(void)
57 {
58 free_dma(FLOPPY_DMA);
59 }
60
fd_clear_dma_ff(void)61 static inline void fd_clear_dma_ff(void)
62 {
63 clear_dma_ff(FLOPPY_DMA);
64 }
65
fd_set_dma_mode(char mode)66 static inline void fd_set_dma_mode(char mode)
67 {
68 set_dma_mode(FLOPPY_DMA, mode);
69 }
70
fd_set_dma_addr(char * addr)71 static inline void fd_set_dma_addr(char *addr)
72 {
73 set_dma_addr(FLOPPY_DMA, (unsigned long) addr);
74 }
75
fd_set_dma_count(unsigned int count)76 static inline void fd_set_dma_count(unsigned int count)
77 {
78 set_dma_count(FLOPPY_DMA, count);
79 }
80
fd_get_dma_residue(void)81 static inline int fd_get_dma_residue(void)
82 {
83 return get_dma_residue(FLOPPY_DMA);
84 }
85
fd_enable_irq(void)86 static inline void fd_enable_irq(void)
87 {
88 enable_irq(FLOPPY_IRQ);
89 }
90
fd_disable_irq(void)91 static inline void fd_disable_irq(void)
92 {
93 disable_irq(FLOPPY_IRQ);
94 }
95
fd_request_irq(void)96 static inline int fd_request_irq(void)
97 {
98 return request_irq(FLOPPY_IRQ, floppy_interrupt,
99 0, "floppy", NULL);
100 }
101
fd_free_irq(void)102 static inline void fd_free_irq(void)
103 {
104 free_irq(FLOPPY_IRQ, NULL);
105 }
106
107 #define fd_free_irq() free_irq(FLOPPY_IRQ, NULL);
108
109
fd_getfdaddr1(void)110 static inline unsigned long fd_getfdaddr1(void)
111 {
112 return 0x3f0;
113 }
114
fd_dma_mem_alloc(unsigned long size)115 static inline unsigned long fd_dma_mem_alloc(unsigned long size)
116 {
117 return __get_dma_pages(GFP_KERNEL, get_order(size));
118 }
119
fd_dma_mem_free(unsigned long addr,unsigned long size)120 static inline void fd_dma_mem_free(unsigned long addr, unsigned long size)
121 {
122 free_pages(addr, get_order(size));
123 }
124
fd_drive_type(unsigned long n)125 static inline unsigned long fd_drive_type(unsigned long n)
126 {
127 if (n == 0)
128 return 4; /* 3,5", 1.44mb */
129
130 return 0;
131 }
132
133 #endif /* __ASM_MACH_GENERIC_FLOPPY_H */
134