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