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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) 1998, 2003 by Ralf Baechle
7 */
8#ifndef __ASM_MACH_JAZZ_FLOPPY_H
9#define __ASM_MACH_JAZZ_FLOPPY_H
10
11#include <linux/delay.h>
12#include <linux/init.h>
13#include <linux/linkage.h>
14#include <linux/types.h>
15#include <linux/mm.h>
16#include <asm/addrspace.h>
17#include <asm/jazz.h>
18#include <asm/jazzdma.h>
19#include <asm/pgtable.h>
20
21static inline unsigned char fd_inb(unsigned int port)
22{
23 unsigned char c;
24
25 c = *(volatile unsigned char *) port;
26 udelay(1);
27
28 return c;
29}
30
31static inline void fd_outb(unsigned char value, unsigned int port)
32{
33 *(volatile unsigned char *) port = value;
34}
35
36/*
37 * How to access the floppy DMA functions.
38 */
39static inline void fd_enable_dma(void)
40{
41 vdma_enable(JAZZ_FLOPPY_DMA);
42}
43
44static inline void fd_disable_dma(void)
45{
46 vdma_disable(JAZZ_FLOPPY_DMA);
47}
48
49static inline int fd_request_dma(void)
50{
51 return 0;
52}
53
54static inline void fd_free_dma(void)
55{
56}
57
58static inline void fd_clear_dma_ff(void)
59{
60}
61
62static inline void fd_set_dma_mode(char mode)
63{
64 vdma_set_mode(JAZZ_FLOPPY_DMA, mode);
65}
66
67static inline void fd_set_dma_addr(char *a)
68{
69 vdma_set_addr(JAZZ_FLOPPY_DMA, vdma_phys2log(CPHYSADDR((unsigned long)a)));
70}
71
72static inline void fd_set_dma_count(unsigned int count)
73{
74 vdma_set_count(JAZZ_FLOPPY_DMA, count);
75}
76
77static inline int fd_get_dma_residue(void)
78{
79 return vdma_get_residue(JAZZ_FLOPPY_DMA);
80}
81
82static inline void fd_enable_irq(void)
83{
84}
85
86static inline void fd_disable_irq(void)
87{
88}
89
90static inline int fd_request_irq(void)
91{
92 return request_irq(FLOPPY_IRQ, floppy_interrupt,
93 0, "floppy", NULL);
94}
95
96static inline void fd_free_irq(void)
97{
98 free_irq(FLOPPY_IRQ, NULL);
99}
100
101static inline unsigned long fd_getfdaddr1(void)
102{
103 return JAZZ_FDC_BASE;
104}
105
106static inline unsigned long fd_dma_mem_alloc(unsigned long size)
107{
108 unsigned long mem;
109
110 mem = __get_dma_pages(GFP_KERNEL, get_order(size));
111 if(!mem)
112 return 0;
113 vdma_alloc(CPHYSADDR(mem), size); /* XXX error checking */
114
115 return mem;
116}
117
118static inline void fd_dma_mem_free(unsigned long addr, unsigned long size)
119{
120 vdma_free(vdma_phys2log(CPHYSADDR(addr)));
121 free_pages(addr, get_order(size));
122}
123
124static inline unsigned long fd_drive_type(unsigned long n)
125{
126 /* XXX This is wrong for machines with ED 2.88mb disk drives like the
127 Olivetti M700. Anyway, we should suck this from the ARC
128 firmware. */
129 if (n == 0)
130 return 4; /* 3,5", 1.44mb */
131
132 return 0;
133}
134
135#endif /* __ASM_MACH_JAZZ_FLOPPY_H */
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) 1998, 2003 by Ralf Baechle
7 */
8#ifndef __ASM_MACH_JAZZ_FLOPPY_H
9#define __ASM_MACH_JAZZ_FLOPPY_H
10
11#include <linux/delay.h>
12#include <linux/linkage.h>
13#include <linux/types.h>
14#include <linux/mm.h>
15#include <asm/addrspace.h>
16#include <asm/jazz.h>
17#include <asm/jazzdma.h>
18
19static inline unsigned char fd_inb(unsigned int base, unsigned int reg)
20{
21 unsigned char c;
22
23 c = *(volatile unsigned char *) (base + reg);
24 udelay(1);
25
26 return c;
27}
28
29static inline void fd_outb(unsigned char value, unsigned int base, unsigned int reg)
30{
31 *(volatile unsigned char *) (base + reg) = value;
32}
33
34/*
35 * How to access the floppy DMA functions.
36 */
37static inline void fd_enable_dma(void)
38{
39 vdma_enable(JAZZ_FLOPPY_DMA);
40}
41
42static inline void fd_disable_dma(void)
43{
44 vdma_disable(JAZZ_FLOPPY_DMA);
45}
46
47static inline int fd_request_dma(void)
48{
49 return 0;
50}
51
52static inline void fd_free_dma(void)
53{
54}
55
56static inline void fd_clear_dma_ff(void)
57{
58}
59
60static inline void fd_set_dma_mode(char mode)
61{
62 vdma_set_mode(JAZZ_FLOPPY_DMA, mode);
63}
64
65static inline void fd_set_dma_addr(char *a)
66{
67 vdma_set_addr(JAZZ_FLOPPY_DMA, vdma_phys2log(CPHYSADDR((unsigned long)a)));
68}
69
70static inline void fd_set_dma_count(unsigned int count)
71{
72 vdma_set_count(JAZZ_FLOPPY_DMA, count);
73}
74
75static inline int fd_get_dma_residue(void)
76{
77 return vdma_get_residue(JAZZ_FLOPPY_DMA);
78}
79
80static inline void fd_enable_irq(void)
81{
82}
83
84static inline void fd_disable_irq(void)
85{
86}
87
88static inline int fd_request_irq(void)
89{
90 return request_irq(FLOPPY_IRQ, floppy_interrupt,
91 0, "floppy", NULL);
92}
93
94static inline void fd_free_irq(void)
95{
96 free_irq(FLOPPY_IRQ, NULL);
97}
98
99static inline unsigned long fd_getfdaddr1(void)
100{
101 return JAZZ_FDC_BASE;
102}
103
104static inline unsigned long fd_dma_mem_alloc(unsigned long size)
105{
106 unsigned long mem;
107
108 mem = __get_dma_pages(GFP_KERNEL, get_order(size));
109 if(!mem)
110 return 0;
111 vdma_alloc(CPHYSADDR(mem), size); /* XXX error checking */
112
113 return mem;
114}
115
116static inline void fd_dma_mem_free(unsigned long addr, unsigned long size)
117{
118 vdma_free(vdma_phys2log(CPHYSADDR(addr)));
119 free_pages(addr, get_order(size));
120}
121
122static inline unsigned long fd_drive_type(unsigned long n)
123{
124 /* XXX This is wrong for machines with ED 2.88mb disk drives like the
125 Olivetti M700. Anyway, we should suck this from the ARC
126 firmware. */
127 if (n == 0)
128 return 4; /* 3,5", 1.44mb */
129
130 return 0;
131}
132
133#endif /* __ASM_MACH_JAZZ_FLOPPY_H */