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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-ppc64/] [floppy.h] - Blame information for rev 1765

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/*
 * Architecture specific parts of the Floppy driver
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1995
 */
#ifndef __ASM_PPC64_FLOPPY_H
#define __ASM_PPC64_FLOPPY_H
 
#include <linux/config.h>
 
#define fd_inb(port)                    inb_p(port)
#define fd_outb(port,value)             outb_p(port,value)
 
#define fd_enable_dma()         enable_dma(FLOPPY_DMA)
#define fd_disable_dma()        disable_dma(FLOPPY_DMA)
#define fd_request_dma()        request_dma(FLOPPY_DMA,"floppy")
#define fd_free_dma()           free_dma(FLOPPY_DMA)
#define fd_clear_dma_ff()       clear_dma_ff(FLOPPY_DMA)
#define fd_set_dma_mode(mode)   set_dma_mode(FLOPPY_DMA,mode)
#define fd_set_dma_count(count) set_dma_count(FLOPPY_DMA,count)
#define fd_enable_irq()         enable_irq(FLOPPY_IRQ)
#define fd_disable_irq()        disable_irq(FLOPPY_IRQ)
#define fd_cacheflush(addr,size) /* nothing */
#define fd_request_irq()        request_irq(FLOPPY_IRQ, floppy_interrupt, \
                                            SA_INTERRUPT|SA_SAMPLE_RANDOM, \
                                            "floppy", NULL)
#define fd_free_irq()           free_irq(FLOPPY_IRQ, NULL);
 
#ifdef CONFIG_PCI
 
#include <linux/pci.h>
 
#define fd_dma_setup(addr,size,mode,io) ppc64_fd_dma_setup(addr,size,mode,io)
 
static __inline__ int
ppc64_fd_dma_setup(char *addr, unsigned long size, int mode, int io)
{
        static unsigned long prev_size;
        static dma_addr_t bus_addr = 0;
        static char *prev_addr;
        static int prev_dir;
        int dir;
 
        dir = (mode == DMA_MODE_READ) ? PCI_DMA_FROMDEVICE : PCI_DMA_TODEVICE;
 
        if (bus_addr
            && (addr != prev_addr || size != prev_size || dir != prev_dir)) {
                /* different from last time -- unmap prev */
                pci_unmap_single(NULL, bus_addr, prev_size, prev_dir);
                bus_addr = 0;
        }
 
        if (!bus_addr)  /* need to map it */ {
                bus_addr = pci_map_single(NULL, addr, size, dir);
        }
 
        /* remember this one as prev */
        prev_addr = addr;
        prev_size = size;
        prev_dir = dir;
 
        fd_clear_dma_ff();
        fd_cacheflush(addr, size);
        fd_set_dma_mode(mode);
        set_dma_addr(FLOPPY_DMA, bus_addr);
        fd_set_dma_count(size);
        virtual_dma_port = io;
        fd_enable_dma();
 
        return 0;
}
 
#endif /* CONFIG_PCI */
 
static int FDC1 = 0x3f0;
static int FDC2 = -1;
 
/*
 * Again, the CMOS information not available
 */
#define FLOPPY0_TYPE 6
#define FLOPPY1_TYPE 0
 
#define N_FDC 2                 /* Don't change this! */
#define N_DRIVE 8
 
#define FLOPPY_MOTOR_MASK 0xf0
 
/*
 * The PowerPC has no problems with floppy DMA crossing 64k borders.
 */
#define CROSS_64KB(a,s) (0)
 
#define EXTRA_FLOPPY_PARAMS
 
#endif /* __ASM_PPC64_FLOPPY_H */

Line No.	Rev	Author	Line
1	1275	phoenix	`/*`
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			`*/`
10			`#ifndef __ASM_PPC64_FLOPPY_H`
11			`#define __ASM_PPC64_FLOPPY_H`
12
13			`#include <linux/config.h>`
14
15			`#define fd_inb(port) inb_p(port)`
16			`#define fd_outb(port,value) outb_p(port,value)`
17
18			`#define fd_enable_dma() enable_dma(FLOPPY_DMA)`
19			`#define fd_disable_dma() disable_dma(FLOPPY_DMA)`
20			`#define fd_request_dma() request_dma(FLOPPY_DMA,"floppy")`
21			`#define fd_free_dma() free_dma(FLOPPY_DMA)`
22			`#define fd_clear_dma_ff() clear_dma_ff(FLOPPY_DMA)`
23			`#define fd_set_dma_mode(mode) set_dma_mode(FLOPPY_DMA,mode)`
24			`#define fd_set_dma_count(count) set_dma_count(FLOPPY_DMA,count)`
25			`#define fd_enable_irq() enable_irq(FLOPPY_IRQ)`
26			`#define fd_disable_irq() disable_irq(FLOPPY_IRQ)`
27			`#define fd_cacheflush(addr,size) /* nothing */`
28			`#define fd_request_irq() request_irq(FLOPPY_IRQ, floppy_interrupt, \`
29			`SA_INTERRUPT\|SA_SAMPLE_RANDOM, \`
30			`"floppy", NULL)`
31			`#define fd_free_irq() free_irq(FLOPPY_IRQ, NULL);`
32
33			`#ifdef CONFIG_PCI`
34
35			`#include <linux/pci.h>`
36
37			`#define fd_dma_setup(addr,size,mode,io) ppc64_fd_dma_setup(addr,size,mode,io)`
38
39			`static __inline__ int`
40			`ppc64_fd_dma_setup(char *addr, unsigned long size, int mode, int io)`
41			`{`
42			`static unsigned long prev_size;`
43			`static dma_addr_t bus_addr = 0;`
44			`static char *prev_addr;`
45			`static int prev_dir;`
46			`int dir;`
47
48			`dir = (mode == DMA_MODE_READ) ? PCI_DMA_FROMDEVICE : PCI_DMA_TODEVICE;`
49
50			`if (bus_addr`
51			`&& (addr != prev_addr \|\| size != prev_size \|\| dir != prev_dir)) {`
52			`/* different from last time -- unmap prev */`
53			`pci_unmap_single(NULL, bus_addr, prev_size, prev_dir);`
54			`bus_addr = 0;`
55			`}`
56
57			`if (!bus_addr) /* need to map it */ {`
58			`bus_addr = pci_map_single(NULL, addr, size, dir);`
59			`}`
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			`static int FDC1 = 0x3f0;`
80			`static int FDC2 = -1;`
81
82			`/*`
83			`* Again, the CMOS information not available`
84			`*/`
85			`#define FLOPPY0_TYPE 6`
86			`#define FLOPPY1_TYPE 0`
87
88			`#define N_FDC 2 /* Don't change this! */`
89			`#define N_DRIVE 8`
90
91			`#define FLOPPY_MOTOR_MASK 0xf0`
92
93			`/*`
94			`* The PowerPC has no problems with floppy DMA crossing 64k borders.`
95			`*/`
96			`#define CROSS_64KB(a,s) (0)`
97
98			`#define EXTRA_FLOPPY_PARAMS`
99
100			`#endif /* __ASM_PPC64_FLOPPY_H */`

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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-ppc64/] [floppy.h] - Blame information for rev 1765