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11#include <linux/module.h>
12#include <linux/types.h>
13#include <linux/pci.h>
14#include <linux/ide.h>
15#include <linux/init.h>
16
17#include <asm/io.h>
18
19#define DRV_NAME "cy82c693"
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29
30#define BUSMASTER_TIMEOUT 0x50
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34
35
36#define CY82_IDE_CMDREG 0x04
37#define CY82_IDE_ADDRSETUP 0x48
38#define CY82_IDE_MASTER_IOR 0x4C
39#define CY82_IDE_MASTER_IOW 0x4D
40#define CY82_IDE_SLAVE_IOR 0x4E
41#define CY82_IDE_SLAVE_IOW 0x4F
42#define CY82_IDE_MASTER_8BIT 0x50
43#define CY82_IDE_SLAVE_8BIT 0x51
44
45#define CY82_INDEX_PORT 0x22
46#define CY82_DATA_PORT 0x23
47
48#define CY82_INDEX_CHANNEL0 0x30
49#define CY82_INDEX_CHANNEL1 0x31
50#define CY82_INDEX_TIMEOUT 0x32
51
52
53
54
55
56static void cy82c693_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive)
57{
58 const u8 mode = drive->dma_mode;
59 u8 single = (mode & 0x10) >> 4, index = 0, data = 0;
60
61 index = hwif->channel ? CY82_INDEX_CHANNEL1 : CY82_INDEX_CHANNEL0;
62
63 data = (mode & 3) | (single << 2);
64
65 outb(index, CY82_INDEX_PORT);
66 outb(data, CY82_DATA_PORT);
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78 data = BUSMASTER_TIMEOUT;
79 outb(CY82_INDEX_TIMEOUT, CY82_INDEX_PORT);
80 outb(data, CY82_DATA_PORT);
81}
82
83static void cy82c693_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
84{
85 struct pci_dev *dev = to_pci_dev(hwif->dev);
86 int bus_speed = ide_pci_clk ? ide_pci_clk : 33;
87 const unsigned long T = 1000000 / bus_speed;
88 unsigned int addrCtrl;
89 struct ide_timing t;
90 u8 time_16, time_8;
91
92
93 if (hwif->index > 0) {
94 dev = pci_get_slot(dev->bus, dev->devfn+1);
95 if (!dev) {
96 printk(KERN_ERR "%s: tune_drive: "
97 "Cannot find secondary interface!\n",
98 drive->name);
99 return;
100 }
101 }
102
103 ide_timing_compute(drive, drive->pio_mode, &t, T, 1);
104
105 time_16 = clamp_val(t.recover - 1, 0, 15) |
106 (clamp_val(t.active - 1, 0, 15) << 4);
107 time_8 = clamp_val(t.act8b - 1, 0, 15) |
108 (clamp_val(t.rec8b - 1, 0, 15) << 4);
109
110
111 if ((drive->dn & 1) == 0) {
112
113
114
115
116
117 pci_read_config_dword(dev, CY82_IDE_ADDRSETUP, &addrCtrl);
118
119 addrCtrl &= (~0xF);
120 addrCtrl |= clamp_val(t.setup - 1, 0, 15);
121 pci_write_config_dword(dev, CY82_IDE_ADDRSETUP, addrCtrl);
122
123
124 pci_write_config_byte(dev, CY82_IDE_MASTER_IOR, time_16);
125 pci_write_config_byte(dev, CY82_IDE_MASTER_IOW, time_16);
126 pci_write_config_byte(dev, CY82_IDE_MASTER_8BIT, time_8);
127 } else {
128
129
130
131
132
133 pci_read_config_dword(dev, CY82_IDE_ADDRSETUP, &addrCtrl);
134
135 addrCtrl &= (~0xF0);
136 addrCtrl |= (clamp_val(t.setup - 1, 0, 15) << 4);
137 pci_write_config_dword(dev, CY82_IDE_ADDRSETUP, addrCtrl);
138
139
140 pci_write_config_byte(dev, CY82_IDE_SLAVE_IOR, time_16);
141 pci_write_config_byte(dev, CY82_IDE_SLAVE_IOW, time_16);
142 pci_write_config_byte(dev, CY82_IDE_SLAVE_8BIT, time_8);
143 }
144}
145
146static void __devinit init_iops_cy82c693(ide_hwif_t *hwif)
147{
148 static ide_hwif_t *primary;
149 struct pci_dev *dev = to_pci_dev(hwif->dev);
150
151 if (PCI_FUNC(dev->devfn) == 1)
152 primary = hwif;
153 else {
154 hwif->mate = primary;
155 hwif->channel = 1;
156 }
157}
158
159static const struct ide_port_ops cy82c693_port_ops = {
160 .set_pio_mode = cy82c693_set_pio_mode,
161 .set_dma_mode = cy82c693_set_dma_mode,
162};
163
164static const struct ide_port_info cy82c693_chipset __devinitdata = {
165 .name = DRV_NAME,
166 .init_iops = init_iops_cy82c693,
167 .port_ops = &cy82c693_port_ops,
168 .host_flags = IDE_HFLAG_SINGLE,
169 .pio_mask = ATA_PIO4,
170 .swdma_mask = ATA_SWDMA2,
171 .mwdma_mask = ATA_MWDMA2,
172};
173
174static int __devinit cy82c693_init_one(struct pci_dev *dev, const struct pci_device_id *id)
175{
176 struct pci_dev *dev2;
177 int ret = -ENODEV;
178
179
180
181 if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE &&
182 PCI_FUNC(dev->devfn) == 1) {
183 dev2 = pci_get_slot(dev->bus, dev->devfn + 1);
184 ret = ide_pci_init_two(dev, dev2, &cy82c693_chipset, NULL);
185 if (ret)
186 pci_dev_put(dev2);
187 }
188 return ret;
189}
190
191static void __devexit cy82c693_remove(struct pci_dev *dev)
192{
193 struct ide_host *host = pci_get_drvdata(dev);
194 struct pci_dev *dev2 = host->dev[1] ? to_pci_dev(host->dev[1]) : NULL;
195
196 ide_pci_remove(dev);
197 pci_dev_put(dev2);
198}
199
200static const struct pci_device_id cy82c693_pci_tbl[] = {
201 { PCI_VDEVICE(CONTAQ, PCI_DEVICE_ID_CONTAQ_82C693), 0 },
202 { 0, },
203};
204MODULE_DEVICE_TABLE(pci, cy82c693_pci_tbl);
205
206static struct pci_driver cy82c693_pci_driver = {
207 .name = "Cypress_IDE",
208 .id_table = cy82c693_pci_tbl,
209 .probe = cy82c693_init_one,
210 .remove = __devexit_p(cy82c693_remove),
211 .suspend = ide_pci_suspend,
212 .resume = ide_pci_resume,
213};
214
215static int __init cy82c693_ide_init(void)
216{
217 return ide_pci_register_driver(&cy82c693_pci_driver);
218}
219
220static void __exit cy82c693_ide_exit(void)
221{
222 pci_unregister_driver(&cy82c693_pci_driver);
223}
224
225module_init(cy82c693_ide_init);
226module_exit(cy82c693_ide_exit);
227
228MODULE_AUTHOR("Andreas Krebs, Andre Hedrick, Bartlomiej Zolnierkiewicz");
229MODULE_DESCRIPTION("PCI driver module for the Cypress CY82C693 IDE");
230MODULE_LICENSE("GPL");
231