2 * Copyright (C) 1999-2002 Andre Hedrick <andre@linux-ide.org>
3 * Copyright (C) 2007 MontaVista Software, Inc. <source@mvista.com>
7 #include <linux/module.h>
8 #include <linux/types.h>
10 #include <linux/hdreg.h>
11 #include <linux/ide.h>
12 #include <linux/init.h>
16 #define DRV_NAME "aec62xx"
18 struct chipset_bus_clock_list_entry {
24 static const struct chipset_bus_clock_list_entry aec6xxx_33_base [] = {
25 { XFER_UDMA_6, 0x31, 0x07 },
26 { XFER_UDMA_5, 0x31, 0x06 },
27 { XFER_UDMA_4, 0x31, 0x05 },
28 { XFER_UDMA_3, 0x31, 0x04 },
29 { XFER_UDMA_2, 0x31, 0x03 },
30 { XFER_UDMA_1, 0x31, 0x02 },
31 { XFER_UDMA_0, 0x31, 0x01 },
33 { XFER_MW_DMA_2, 0x31, 0x00 },
34 { XFER_MW_DMA_1, 0x31, 0x00 },
35 { XFER_MW_DMA_0, 0x0a, 0x00 },
36 { XFER_PIO_4, 0x31, 0x00 },
37 { XFER_PIO_3, 0x33, 0x00 },
38 { XFER_PIO_2, 0x08, 0x00 },
39 { XFER_PIO_1, 0x0a, 0x00 },
40 { XFER_PIO_0, 0x00, 0x00 },
44 static const struct chipset_bus_clock_list_entry aec6xxx_34_base [] = {
45 { XFER_UDMA_6, 0x41, 0x06 },
46 { XFER_UDMA_5, 0x41, 0x05 },
47 { XFER_UDMA_4, 0x41, 0x04 },
48 { XFER_UDMA_3, 0x41, 0x03 },
49 { XFER_UDMA_2, 0x41, 0x02 },
50 { XFER_UDMA_1, 0x41, 0x01 },
51 { XFER_UDMA_0, 0x41, 0x01 },
53 { XFER_MW_DMA_2, 0x41, 0x00 },
54 { XFER_MW_DMA_1, 0x42, 0x00 },
55 { XFER_MW_DMA_0, 0x7a, 0x00 },
56 { XFER_PIO_4, 0x41, 0x00 },
57 { XFER_PIO_3, 0x43, 0x00 },
58 { XFER_PIO_2, 0x78, 0x00 },
59 { XFER_PIO_1, 0x7a, 0x00 },
60 { XFER_PIO_0, 0x70, 0x00 },
65 * TO DO: active tuning and correction of cards without a bios.
67 static u8 pci_bus_clock_list (u8 speed, struct chipset_bus_clock_list_entry * chipset_table)
69 for ( ; chipset_table->xfer_speed ; chipset_table++)
70 if (chipset_table->xfer_speed == speed) {
71 return chipset_table->chipset_settings;
73 return chipset_table->chipset_settings;
76 static u8 pci_bus_clock_list_ultra (u8 speed, struct chipset_bus_clock_list_entry * chipset_table)
78 for ( ; chipset_table->xfer_speed ; chipset_table++)
79 if (chipset_table->xfer_speed == speed) {
80 return chipset_table->ultra_settings;
82 return chipset_table->ultra_settings;
85 static void aec6210_set_mode(ide_drive_t *drive, const u8 speed)
87 ide_hwif_t *hwif = HWIF(drive);
88 struct pci_dev *dev = to_pci_dev(hwif->dev);
89 struct ide_host *host = pci_get_drvdata(dev);
90 struct chipset_bus_clock_list_entry *bus_clock = host->host_priv;
92 u8 ultra = 0, ultra_conf = 0;
93 u8 tmp0 = 0, tmp1 = 0, tmp2 = 0;
96 local_irq_save(flags);
97 /* 0x40|(2*drive->dn): Active, 0x41|(2*drive->dn): Recovery */
98 pci_read_config_word(dev, 0x40|(2*drive->dn), &d_conf);
99 tmp0 = pci_bus_clock_list(speed, bus_clock);
100 d_conf = ((tmp0 & 0xf0) << 4) | (tmp0 & 0xf);
101 pci_write_config_word(dev, 0x40|(2*drive->dn), d_conf);
105 pci_read_config_byte(dev, 0x54, &ultra);
106 tmp1 = ((0x00 << (2*drive->dn)) | (ultra & ~(3 << (2*drive->dn))));
107 ultra_conf = pci_bus_clock_list_ultra(speed, bus_clock);
108 tmp2 = ((ultra_conf << (2*drive->dn)) | (tmp1 & ~(3 << (2*drive->dn))));
109 pci_write_config_byte(dev, 0x54, tmp2);
110 local_irq_restore(flags);
113 static void aec6260_set_mode(ide_drive_t *drive, const u8 speed)
115 ide_hwif_t *hwif = HWIF(drive);
116 struct pci_dev *dev = to_pci_dev(hwif->dev);
117 struct ide_host *host = pci_get_drvdata(dev);
118 struct chipset_bus_clock_list_entry *bus_clock = host->host_priv;
119 u8 unit = (drive->select.b.unit & 0x01);
120 u8 tmp1 = 0, tmp2 = 0;
121 u8 ultra = 0, drive_conf = 0, ultra_conf = 0;
124 local_irq_save(flags);
125 /* high 4-bits: Active, low 4-bits: Recovery */
126 pci_read_config_byte(dev, 0x40|drive->dn, &drive_conf);
127 drive_conf = pci_bus_clock_list(speed, bus_clock);
128 pci_write_config_byte(dev, 0x40|drive->dn, drive_conf);
130 pci_read_config_byte(dev, (0x44|hwif->channel), &ultra);
131 tmp1 = ((0x00 << (4*unit)) | (ultra & ~(7 << (4*unit))));
132 ultra_conf = pci_bus_clock_list_ultra(speed, bus_clock);
133 tmp2 = ((ultra_conf << (4*unit)) | (tmp1 & ~(7 << (4*unit))));
134 pci_write_config_byte(dev, (0x44|hwif->channel), tmp2);
135 local_irq_restore(flags);
138 static void aec_set_pio_mode(ide_drive_t *drive, const u8 pio)
140 drive->hwif->port_ops->set_dma_mode(drive, pio + XFER_PIO_0);
143 static unsigned int __devinit init_chipset_aec62xx(struct pci_dev *dev)
145 /* These are necessary to get AEC6280 Macintosh cards to work */
146 if ((dev->device == PCI_DEVICE_ID_ARTOP_ATP865) ||
147 (dev->device == PCI_DEVICE_ID_ARTOP_ATP865R)) {
148 u8 reg49h = 0, reg4ah = 0;
149 /* Clear reset and test bits. */
150 pci_read_config_byte(dev, 0x49, ®49h);
151 pci_write_config_byte(dev, 0x49, reg49h & ~0x30);
152 /* Enable chip interrupt output. */
153 pci_read_config_byte(dev, 0x4a, ®4ah);
154 pci_write_config_byte(dev, 0x4a, reg4ah & ~0x01);
155 /* Enable burst mode. */
156 pci_read_config_byte(dev, 0x4a, ®4ah);
157 pci_write_config_byte(dev, 0x4a, reg4ah | 0x80);
163 static u8 __devinit atp86x_cable_detect(ide_hwif_t *hwif)
165 struct pci_dev *dev = to_pci_dev(hwif->dev);
166 u8 ata66 = 0, mask = hwif->channel ? 0x02 : 0x01;
168 pci_read_config_byte(dev, 0x49, &ata66);
170 return (ata66 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
173 static const struct ide_port_ops atp850_port_ops = {
174 .set_pio_mode = aec_set_pio_mode,
175 .set_dma_mode = aec6210_set_mode,
178 static const struct ide_port_ops atp86x_port_ops = {
179 .set_pio_mode = aec_set_pio_mode,
180 .set_dma_mode = aec6260_set_mode,
181 .cable_detect = atp86x_cable_detect,
184 static const struct ide_port_info aec62xx_chipsets[] __devinitdata = {
187 .init_chipset = init_chipset_aec62xx,
188 .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
189 .port_ops = &atp850_port_ops,
190 .host_flags = IDE_HFLAG_SERIALIZE |
191 IDE_HFLAG_NO_ATAPI_DMA |
194 .pio_mask = ATA_PIO4,
195 .mwdma_mask = ATA_MWDMA2,
196 .udma_mask = ATA_UDMA2,
200 .init_chipset = init_chipset_aec62xx,
201 .port_ops = &atp86x_port_ops,
202 .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_NO_AUTODMA |
204 .pio_mask = ATA_PIO4,
205 .mwdma_mask = ATA_MWDMA2,
206 .udma_mask = ATA_UDMA4,
210 .init_chipset = init_chipset_aec62xx,
211 .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
212 .port_ops = &atp86x_port_ops,
213 .host_flags = IDE_HFLAG_NO_ATAPI_DMA |
214 IDE_HFLAG_NON_BOOTABLE,
215 .pio_mask = ATA_PIO4,
216 .mwdma_mask = ATA_MWDMA2,
217 .udma_mask = ATA_UDMA4,
221 .init_chipset = init_chipset_aec62xx,
222 .port_ops = &atp86x_port_ops,
223 .host_flags = IDE_HFLAG_NO_ATAPI_DMA |
225 .pio_mask = ATA_PIO4,
226 .mwdma_mask = ATA_MWDMA2,
227 .udma_mask = ATA_UDMA5,
231 .init_chipset = init_chipset_aec62xx,
232 .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
233 .port_ops = &atp86x_port_ops,
234 .host_flags = IDE_HFLAG_NO_ATAPI_DMA |
236 .pio_mask = ATA_PIO4,
237 .mwdma_mask = ATA_MWDMA2,
238 .udma_mask = ATA_UDMA5,
243 * aec62xx_init_one - called when a AEC is found
244 * @dev: the aec62xx device
245 * @id: the matching pci id
247 * Called when the PCI registration layer (or the IDE initialization)
248 * finds a device matching our IDE device tables.
250 * NOTE: since we're going to modify the 'name' field for AEC-6[26]80[R]
251 * chips, pass a local copy of 'struct ide_port_info' down the call chain.
254 static int __devinit aec62xx_init_one(struct pci_dev *dev, const struct pci_device_id *id)
256 const struct chipset_bus_clock_list_entry *bus_clock;
257 struct ide_port_info d;
258 u8 idx = id->driver_data;
259 int bus_speed = ide_pci_clk ? ide_pci_clk : 33;
263 bus_clock = aec6xxx_33_base;
265 bus_clock = aec6xxx_34_base;
267 err = pci_enable_device(dev);
271 d = aec62xx_chipsets[idx];
273 if (idx == 3 || idx == 4) {
274 unsigned long dma_base = pci_resource_start(dev, 4);
276 if (inb(dma_base + 2) & 0x10) {
277 printk(KERN_INFO DRV_NAME " %s: AEC6880%s card detected"
278 "\n", pci_name(dev), (idx == 4) ? "R" : "");
279 d.udma_mask = ATA_UDMA6;
283 err = ide_pci_init_one(dev, &d, (void *)bus_clock);
285 pci_disable_device(dev);
290 static void __devexit aec62xx_remove(struct pci_dev *dev)
293 pci_disable_device(dev);
296 static const struct pci_device_id aec62xx_pci_tbl[] = {
297 { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP850UF), 0 },
298 { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP860), 1 },
299 { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP860R), 2 },
300 { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP865), 3 },
301 { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP865R), 4 },
304 MODULE_DEVICE_TABLE(pci, aec62xx_pci_tbl);
306 static struct pci_driver driver = {
307 .name = "AEC62xx_IDE",
308 .id_table = aec62xx_pci_tbl,
309 .probe = aec62xx_init_one,
310 .remove = aec62xx_remove,
313 static int __init aec62xx_ide_init(void)
315 return ide_pci_register_driver(&driver);
318 static void __exit aec62xx_ide_exit(void)
320 pci_unregister_driver(&driver);
323 module_init(aec62xx_ide_init);
324 module_exit(aec62xx_ide_exit);
326 MODULE_AUTHOR("Andre Hedrick");
327 MODULE_DESCRIPTION("PCI driver module for ARTOP AEC62xx IDE");
328 MODULE_LICENSE("GPL");