This source file includes following definitions.
- cs5520_set_pio_mode
- cs5520_set_dma_mode
- cs5520_init_one
- cs5520_ide_init
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35 #include <linux/module.h>
36 #include <linux/types.h>
37 #include <linux/kernel.h>
38 #include <linux/init.h>
39 #include <linux/pci.h>
40 #include <linux/ide.h>
41 #include <linux/dma-mapping.h>
42
43 #define DRV_NAME "cs5520"
44
45 struct pio_clocks
46 {
47 int address;
48 int assert;
49 int recovery;
50 };
51
52 static struct pio_clocks cs5520_pio_clocks[]={
53 {3, 6, 11},
54 {2, 5, 6},
55 {1, 4, 3},
56 {1, 3, 2},
57 {1, 2, 1}
58 };
59
60 static void cs5520_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
61 {
62 struct pci_dev *pdev = to_pci_dev(hwif->dev);
63 int controller = drive->dn > 1 ? 1 : 0;
64 const u8 pio = drive->pio_mode - XFER_PIO_0;
65
66
67 pci_write_config_byte(pdev, 0x62 + controller,
68 (cs5520_pio_clocks[pio].recovery << 4) |
69 (cs5520_pio_clocks[pio].assert));
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74
75 pci_write_config_byte(pdev, 0x64 + 4*controller + (drive->dn&1),
76 (cs5520_pio_clocks[pio].recovery << 4) |
77 (cs5520_pio_clocks[pio].assert));
78
79 pci_write_config_byte(pdev, 0x66 + 4*controller + (drive->dn&1),
80 (cs5520_pio_clocks[pio].recovery << 4) |
81 (cs5520_pio_clocks[pio].assert));
82 }
83
84 static void cs5520_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive)
85 {
86 printk(KERN_ERR "cs55x0: bad ide timing.\n");
87
88 drive->pio_mode = XFER_PIO_0 + 0;
89 cs5520_set_pio_mode(hwif, drive);
90 }
91
92 static const struct ide_port_ops cs5520_port_ops = {
93 .set_pio_mode = cs5520_set_pio_mode,
94 .set_dma_mode = cs5520_set_dma_mode,
95 };
96
97 static const struct ide_port_info cyrix_chipset = {
98 .name = DRV_NAME,
99 .enablebits = { { 0x60, 0x01, 0x01 }, { 0x60, 0x02, 0x02 } },
100 .port_ops = &cs5520_port_ops,
101 .host_flags = IDE_HFLAG_ISA_PORTS | IDE_HFLAG_CS5520,
102 .pio_mask = ATA_PIO4,
103 };
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110
111 static int cs5520_init_one(struct pci_dev *dev, const struct pci_device_id *id)
112 {
113 const struct ide_port_info *d = &cyrix_chipset;
114 struct ide_hw hw[2], *hws[] = { NULL, NULL };
115
116 ide_setup_pci_noise(dev, d);
117
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119
120
121 if (pci_enable_device_io(dev)) {
122 printk(KERN_WARNING "%s: Unable to enable 55x0.\n", d->name);
123 return -ENODEV;
124 }
125 pci_set_master(dev);
126 if (dma_set_mask(&dev->dev, DMA_BIT_MASK(32))) {
127 printk(KERN_WARNING "%s: No suitable DMA available.\n",
128 d->name);
129 return -ENODEV;
130 }
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136
137 ide_pci_setup_ports(dev, d, &hw[0], &hws[0]);
138 hw[0].irq = 14;
139 hw[1].irq = 15;
140
141 return ide_host_add(d, hws, 2, NULL);
142 }
143
144 static const struct pci_device_id cs5520_pci_tbl[] = {
145 { PCI_VDEVICE(CYRIX, PCI_DEVICE_ID_CYRIX_5510), 0 },
146 { PCI_VDEVICE(CYRIX, PCI_DEVICE_ID_CYRIX_5520), 1 },
147 { 0, },
148 };
149 MODULE_DEVICE_TABLE(pci, cs5520_pci_tbl);
150
151 static struct pci_driver cs5520_pci_driver = {
152 .name = "Cyrix_IDE",
153 .id_table = cs5520_pci_tbl,
154 .probe = cs5520_init_one,
155 .suspend = ide_pci_suspend,
156 .resume = ide_pci_resume,
157 };
158
159 static int __init cs5520_ide_init(void)
160 {
161 return ide_pci_register_driver(&cs5520_pci_driver);
162 }
163
164 module_init(cs5520_ide_init);
165
166 MODULE_AUTHOR("Alan Cox");
167 MODULE_DESCRIPTION("PCI driver module for Cyrix 5510/5520 IDE");
168 MODULE_LICENSE("GPL");