Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Bartlomiej Zolnierkiewicz | 3f019ee | 2007-10-16 22:29:54 +0200 | [diff] [blame] | 2 | * linux/drivers/ide/pci/sc1200.c Version 0.97 Aug 3 2007 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * |
| 4 | * Copyright (C) 2000-2002 Mark Lord <mlord@pobox.com> |
Bartlomiej Zolnierkiewicz | 5fd216b | 2007-05-16 00:51:43 +0200 | [diff] [blame] | 5 | * Copyright (C) 2007 Bartlomiej Zolnierkiewicz |
| 6 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * May be copied or modified under the terms of the GNU General Public License |
| 8 | * |
| 9 | * Development of this chipset driver was funded |
| 10 | * by the nice folks at National Semiconductor. |
| 11 | * |
| 12 | * Documentation: |
| 13 | * Available from National Semiconductor |
| 14 | */ |
| 15 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | #include <linux/module.h> |
| 17 | #include <linux/types.h> |
| 18 | #include <linux/kernel.h> |
| 19 | #include <linux/delay.h> |
| 20 | #include <linux/timer.h> |
| 21 | #include <linux/mm.h> |
| 22 | #include <linux/ioport.h> |
| 23 | #include <linux/blkdev.h> |
| 24 | #include <linux/hdreg.h> |
| 25 | #include <linux/interrupt.h> |
| 26 | #include <linux/pci.h> |
| 27 | #include <linux/init.h> |
| 28 | #include <linux/ide.h> |
| 29 | #include <linux/pm.h> |
| 30 | #include <asm/io.h> |
| 31 | #include <asm/irq.h> |
| 32 | |
| 33 | #define SC1200_REV_A 0x00 |
| 34 | #define SC1200_REV_B1 0x01 |
| 35 | #define SC1200_REV_B3 0x02 |
| 36 | #define SC1200_REV_C1 0x03 |
| 37 | #define SC1200_REV_D1 0x04 |
| 38 | |
| 39 | #define PCI_CLK_33 0x00 |
| 40 | #define PCI_CLK_48 0x01 |
| 41 | #define PCI_CLK_66 0x02 |
| 42 | #define PCI_CLK_33A 0x03 |
| 43 | |
| 44 | static unsigned short sc1200_get_pci_clock (void) |
| 45 | { |
| 46 | unsigned char chip_id, silicon_revision; |
| 47 | unsigned int pci_clock; |
| 48 | /* |
| 49 | * Check the silicon revision, as not all versions of the chip |
| 50 | * have the register with the fast PCI bus timings. |
| 51 | */ |
| 52 | chip_id = inb (0x903c); |
| 53 | silicon_revision = inb (0x903d); |
| 54 | |
| 55 | // Read the fast pci clock frequency |
| 56 | if (chip_id == 0x04 && silicon_revision < SC1200_REV_B1) { |
| 57 | pci_clock = PCI_CLK_33; |
| 58 | } else { |
| 59 | // check clock generator configuration (cfcc) |
| 60 | // the clock is in bits 8 and 9 of this word |
| 61 | |
| 62 | pci_clock = inw (0x901e); |
| 63 | pci_clock >>= 8; |
| 64 | pci_clock &= 0x03; |
| 65 | if (pci_clock == PCI_CLK_33A) |
| 66 | pci_clock = PCI_CLK_33; |
| 67 | } |
| 68 | return pci_clock; |
| 69 | } |
| 70 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | /* |
| 72 | * Here are the standard PIO mode 0-4 timings for each "format". |
| 73 | * Format-0 uses fast data reg timings, with slower command reg timings. |
| 74 | * Format-1 uses fast timings for all registers, but won't work with all drives. |
| 75 | */ |
| 76 | static const unsigned int sc1200_pio_timings[4][5] = |
| 77 | {{0x00009172, 0x00012171, 0x00020080, 0x00032010, 0x00040010}, // format0 33Mhz |
| 78 | {0xd1329172, 0x71212171, 0x30200080, 0x20102010, 0x00100010}, // format1, 33Mhz |
| 79 | {0xfaa3f4f3, 0xc23232b2, 0x513101c1, 0x31213121, 0x10211021}, // format1, 48Mhz |
| 80 | {0xfff4fff4, 0xf35353d3, 0x814102f1, 0x42314231, 0x11311131}}; // format1, 66Mhz |
| 81 | |
| 82 | /* |
| 83 | * After chip reset, the PIO timings are set to 0x00009172, which is not valid. |
| 84 | */ |
| 85 | //#define SC1200_BAD_PIO(timings) (((timings)&~0x80000000)==0x00009172) |
| 86 | |
Bartlomiej Zolnierkiewicz | 3c3f5d2 | 2007-05-16 00:51:44 +0200 | [diff] [blame] | 87 | static void sc1200_tunepio(ide_drive_t *drive, u8 pio) |
| 88 | { |
| 89 | ide_hwif_t *hwif = drive->hwif; |
| 90 | struct pci_dev *pdev = hwif->pci_dev; |
| 91 | unsigned int basereg = hwif->channel ? 0x50 : 0x40, format = 0; |
| 92 | |
| 93 | pci_read_config_dword(pdev, basereg + 4, &format); |
| 94 | format = (format >> 31) & 1; |
| 95 | if (format) |
| 96 | format += sc1200_get_pci_clock(); |
| 97 | pci_write_config_dword(pdev, basereg + ((drive->dn & 1) << 3), |
| 98 | sc1200_pio_timings[format][pio]); |
| 99 | } |
| 100 | |
Bartlomiej Zolnierkiewicz | 5fd216b | 2007-05-16 00:51:43 +0200 | [diff] [blame] | 101 | /* |
| 102 | * The SC1200 specifies that two drives sharing a cable cannot mix |
| 103 | * UDMA/MDMA. It has to be one or the other, for the pair, though |
| 104 | * different timings can still be chosen for each drive. We could |
| 105 | * set the appropriate timing bits on the fly, but that might be |
| 106 | * a bit confusing. So, for now we statically handle this requirement |
| 107 | * by looking at our mate drive to see what it is capable of, before |
| 108 | * choosing a mode for our own drive. |
| 109 | */ |
| 110 | static u8 sc1200_udma_filter(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | { |
Bartlomiej Zolnierkiewicz | 5fd216b | 2007-05-16 00:51:43 +0200 | [diff] [blame] | 112 | ide_hwif_t *hwif = drive->hwif; |
| 113 | ide_drive_t *mate = &hwif->drives[(drive->dn & 1) ^ 1]; |
| 114 | struct hd_driveid *mateid = mate->id; |
| 115 | u8 mask = hwif->ultra_mask; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | |
Bartlomiej Zolnierkiewicz | 5fd216b | 2007-05-16 00:51:43 +0200 | [diff] [blame] | 117 | if (mate->present == 0) |
| 118 | goto out; |
| 119 | |
| 120 | if ((mateid->capability & 1) && __ide_dma_bad_drive(mate) == 0) { |
| 121 | if ((mateid->field_valid & 4) && (mateid->dma_ultra & 7)) |
| 122 | goto out; |
| 123 | if ((mateid->field_valid & 2) && (mateid->dma_mword & 7)) |
| 124 | mask = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | } |
Bartlomiej Zolnierkiewicz | 5fd216b | 2007-05-16 00:51:43 +0200 | [diff] [blame] | 126 | out: |
| 127 | return mask; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | } |
| 129 | |
Bartlomiej Zolnierkiewicz | 88b2b32 | 2007-10-13 17:47:51 +0200 | [diff] [blame] | 130 | static void sc1200_set_dma_mode(ide_drive_t *drive, const u8 mode) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | { |
| 132 | ide_hwif_t *hwif = HWIF(drive); |
| 133 | int unit = drive->select.b.unit; |
| 134 | unsigned int reg, timings; |
| 135 | unsigned short pci_clock; |
| 136 | unsigned int basereg = hwif->channel ? 0x50 : 0x40; |
| 137 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | pci_clock = sc1200_get_pci_clock(); |
| 139 | |
| 140 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | * Note that each DMA mode has several timings associated with it. |
| 142 | * The correct timing depends on the fast PCI clock freq. |
| 143 | */ |
| 144 | timings = 0; |
| 145 | switch (mode) { |
| 146 | case XFER_UDMA_0: |
| 147 | switch (pci_clock) { |
| 148 | case PCI_CLK_33: timings = 0x00921250; break; |
| 149 | case PCI_CLK_48: timings = 0x00932470; break; |
| 150 | case PCI_CLK_66: timings = 0x009436a1; break; |
| 151 | } |
| 152 | break; |
| 153 | case XFER_UDMA_1: |
| 154 | switch (pci_clock) { |
| 155 | case PCI_CLK_33: timings = 0x00911140; break; |
| 156 | case PCI_CLK_48: timings = 0x00922260; break; |
| 157 | case PCI_CLK_66: timings = 0x00933481; break; |
| 158 | } |
| 159 | break; |
| 160 | case XFER_UDMA_2: |
| 161 | switch (pci_clock) { |
| 162 | case PCI_CLK_33: timings = 0x00911030; break; |
| 163 | case PCI_CLK_48: timings = 0x00922140; break; |
| 164 | case PCI_CLK_66: timings = 0x00923261; break; |
| 165 | } |
| 166 | break; |
| 167 | case XFER_MW_DMA_0: |
| 168 | switch (pci_clock) { |
| 169 | case PCI_CLK_33: timings = 0x00077771; break; |
| 170 | case PCI_CLK_48: timings = 0x000bbbb2; break; |
| 171 | case PCI_CLK_66: timings = 0x000ffff3; break; |
| 172 | } |
| 173 | break; |
| 174 | case XFER_MW_DMA_1: |
| 175 | switch (pci_clock) { |
| 176 | case PCI_CLK_33: timings = 0x00012121; break; |
| 177 | case PCI_CLK_48: timings = 0x00024241; break; |
| 178 | case PCI_CLK_66: timings = 0x00035352; break; |
| 179 | } |
| 180 | break; |
| 181 | case XFER_MW_DMA_2: |
| 182 | switch (pci_clock) { |
| 183 | case PCI_CLK_33: timings = 0x00002020; break; |
| 184 | case PCI_CLK_48: timings = 0x00013131; break; |
| 185 | case PCI_CLK_66: timings = 0x00015151; break; |
| 186 | } |
| 187 | break; |
Bartlomiej Zolnierkiewicz | 3c3f5d2 | 2007-05-16 00:51:44 +0200 | [diff] [blame] | 188 | default: |
| 189 | BUG(); |
| 190 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | } |
| 192 | |
| 193 | if (unit == 0) { /* are we configuring drive0? */ |
| 194 | pci_read_config_dword(hwif->pci_dev, basereg+4, ®); |
| 195 | timings |= reg & 0x80000000; /* preserve PIO format bit */ |
| 196 | pci_write_config_dword(hwif->pci_dev, basereg+4, timings); |
| 197 | } else { |
| 198 | pci_write_config_dword(hwif->pci_dev, basereg+12, timings); |
| 199 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | } |
| 201 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | /* Replacement for the standard ide_dma_end action in |
| 203 | * dma_proc. |
| 204 | * |
| 205 | * returns 1 on error, 0 otherwise |
| 206 | */ |
| 207 | static int sc1200_ide_dma_end (ide_drive_t *drive) |
| 208 | { |
| 209 | ide_hwif_t *hwif = HWIF(drive); |
| 210 | unsigned long dma_base = hwif->dma_base; |
| 211 | byte dma_stat; |
| 212 | |
| 213 | dma_stat = inb(dma_base+2); /* get DMA status */ |
| 214 | |
| 215 | if (!(dma_stat & 4)) |
| 216 | printk(" ide_dma_end dma_stat=%0x err=%x newerr=%x\n", |
| 217 | dma_stat, ((dma_stat&7)!=4), ((dma_stat&2)==2)); |
| 218 | |
| 219 | outb(dma_stat|0x1b, dma_base+2); /* clear the INTR & ERROR bits */ |
| 220 | outb(inb(dma_base)&~1, dma_base); /* !! DO THIS HERE !! stop DMA */ |
| 221 | |
| 222 | drive->waiting_for_dma = 0; |
| 223 | ide_destroy_dmatable(drive); /* purge DMA mappings */ |
| 224 | |
| 225 | return (dma_stat & 7) != 4; /* verify good DMA status */ |
| 226 | } |
| 227 | |
| 228 | /* |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 229 | * sc1200_set_pio_mode() handles setting of PIO modes |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | * for both the chipset and drive. |
| 231 | * |
| 232 | * All existing BIOSs for this chipset guarantee that all drives |
| 233 | * will have valid default PIO timings set up before we get here. |
| 234 | */ |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 235 | |
| 236 | static void sc1200_set_pio_mode(ide_drive_t *drive, const u8 pio) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | { |
| 238 | ide_hwif_t *hwif = HWIF(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | int mode = -1; |
| 240 | |
Bartlomiej Zolnierkiewicz | a01ba40 | 2007-05-16 00:51:44 +0200 | [diff] [blame] | 241 | /* |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 242 | * bad abuse of ->set_pio_mode interface |
Bartlomiej Zolnierkiewicz | a01ba40 | 2007-05-16 00:51:44 +0200 | [diff] [blame] | 243 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | switch (pio) { |
| 245 | case 200: mode = XFER_UDMA_0; break; |
| 246 | case 201: mode = XFER_UDMA_1; break; |
| 247 | case 202: mode = XFER_UDMA_2; break; |
| 248 | case 100: mode = XFER_MW_DMA_0; break; |
| 249 | case 101: mode = XFER_MW_DMA_1; break; |
| 250 | case 102: mode = XFER_MW_DMA_2; break; |
| 251 | } |
| 252 | if (mode != -1) { |
| 253 | printk("SC1200: %s: changing (U)DMA mode\n", drive->name); |
Bartlomiej Zolnierkiewicz | a01ba40 | 2007-05-16 00:51:44 +0200 | [diff] [blame] | 254 | hwif->dma_off_quietly(drive); |
Bartlomiej Zolnierkiewicz | 88b2b32 | 2007-10-13 17:47:51 +0200 | [diff] [blame] | 255 | if (ide_set_dma_mode(drive, mode) == 0) |
Bartlomiej Zolnierkiewicz | a01ba40 | 2007-05-16 00:51:44 +0200 | [diff] [blame] | 256 | hwif->dma_host_on(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | return; |
| 258 | } |
| 259 | |
Bartlomiej Zolnierkiewicz | 88b2b32 | 2007-10-13 17:47:51 +0200 | [diff] [blame] | 260 | sc1200_tunepio(drive, pio); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | } |
| 262 | |
Alexey Dobriyan | b86cc29 | 2006-10-03 01:14:32 -0700 | [diff] [blame] | 263 | #ifdef CONFIG_PM |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | static ide_hwif_t *lookup_pci_dev (ide_hwif_t *prev, struct pci_dev *dev) |
| 265 | { |
| 266 | int h; |
| 267 | |
| 268 | for (h = 0; h < MAX_HWIFS; h++) { |
| 269 | ide_hwif_t *hwif = &ide_hwifs[h]; |
| 270 | if (prev) { |
| 271 | if (hwif == prev) |
| 272 | prev = NULL; // found previous, now look for next match |
| 273 | } else { |
| 274 | if (hwif && hwif->pci_dev == dev) |
| 275 | return hwif; // found next match |
| 276 | } |
| 277 | } |
| 278 | return NULL; // not found |
| 279 | } |
| 280 | |
| 281 | typedef struct sc1200_saved_state_s { |
| 282 | __u32 regs[4]; |
| 283 | } sc1200_saved_state_t; |
| 284 | |
| 285 | |
Pavel Machek | 3bfffd9 | 2005-04-16 15:25:37 -0700 | [diff] [blame] | 286 | static int sc1200_suspend (struct pci_dev *dev, pm_message_t state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 287 | { |
| 288 | ide_hwif_t *hwif = NULL; |
| 289 | |
Pavel Machek | ca078ba | 2005-09-03 15:56:57 -0700 | [diff] [blame] | 290 | printk("SC1200: suspend(%u)\n", state.event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | |
Pavel Machek | ca078ba | 2005-09-03 15:56:57 -0700 | [diff] [blame] | 292 | if (state.event == PM_EVENT_ON) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | // we only save state when going from full power to less |
| 294 | |
| 295 | // |
| 296 | // Loop over all interfaces that are part of this PCI device: |
| 297 | // |
| 298 | while ((hwif = lookup_pci_dev(hwif, dev)) != NULL) { |
| 299 | sc1200_saved_state_t *ss; |
| 300 | unsigned int basereg, r; |
| 301 | // |
| 302 | // allocate a permanent save area, if not already allocated |
| 303 | // |
| 304 | ss = (sc1200_saved_state_t *)hwif->config_data; |
| 305 | if (ss == NULL) { |
| 306 | ss = kmalloc(sizeof(sc1200_saved_state_t), GFP_KERNEL); |
| 307 | if (ss == NULL) |
| 308 | return -ENOMEM; |
| 309 | hwif->config_data = (unsigned long)ss; |
| 310 | } |
| 311 | ss = (sc1200_saved_state_t *)hwif->config_data; |
| 312 | // |
| 313 | // Save timing registers: this may be unnecessary if |
| 314 | // BIOS also does it |
| 315 | // |
| 316 | basereg = hwif->channel ? 0x50 : 0x40; |
| 317 | for (r = 0; r < 4; ++r) { |
| 318 | pci_read_config_dword (hwif->pci_dev, basereg + (r<<2), &ss->regs[r]); |
| 319 | } |
| 320 | } |
| 321 | } |
| 322 | |
| 323 | /* You don't need to iterate over disks -- sysfs should have done that for you already */ |
| 324 | |
| 325 | pci_disable_device(dev); |
Pavel Machek | ca078ba | 2005-09-03 15:56:57 -0700 | [diff] [blame] | 326 | pci_set_power_state(dev, pci_choose_state(dev, state)); |
| 327 | dev->current_state = state.event; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | return 0; |
| 329 | } |
| 330 | |
| 331 | static int sc1200_resume (struct pci_dev *dev) |
| 332 | { |
| 333 | ide_hwif_t *hwif = NULL; |
| 334 | |
Pavel Machek | ca078ba | 2005-09-03 15:56:57 -0700 | [diff] [blame] | 335 | pci_set_power_state(dev, PCI_D0); // bring chip back from sleep state |
| 336 | dev->current_state = PM_EVENT_ON; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | pci_enable_device(dev); |
| 338 | // |
| 339 | // loop over all interfaces that are part of this pci device: |
| 340 | // |
| 341 | while ((hwif = lookup_pci_dev(hwif, dev)) != NULL) { |
Bartlomiej Zolnierkiewicz | 31c4df4 | 2007-07-20 01:11:56 +0200 | [diff] [blame] | 342 | unsigned int basereg, r; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | sc1200_saved_state_t *ss = (sc1200_saved_state_t *)hwif->config_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | |
| 345 | // |
| 346 | // Restore timing registers: this may be unnecessary if BIOS also does it |
| 347 | // |
| 348 | basereg = hwif->channel ? 0x50 : 0x40; |
| 349 | if (ss != NULL) { |
| 350 | for (r = 0; r < 4; ++r) { |
| 351 | pci_write_config_dword(hwif->pci_dev, basereg + (r<<2), ss->regs[r]); |
| 352 | } |
| 353 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | } |
| 355 | return 0; |
| 356 | } |
Alexey Dobriyan | b86cc29 | 2006-10-03 01:14:32 -0700 | [diff] [blame] | 357 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | |
| 359 | /* |
| 360 | * This gets invoked by the IDE driver once for each channel, |
| 361 | * and performs channel-specific pre-initialization before drive probing. |
| 362 | */ |
Herbert Xu | 6a6e1b1 | 2005-07-03 16:35:07 +0200 | [diff] [blame] | 363 | static void __devinit init_hwif_sc1200 (ide_hwif_t *hwif) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 | { |
| 365 | if (hwif->mate) |
| 366 | hwif->serialized = hwif->mate->serialized = 1; |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 367 | |
Bartlomiej Zolnierkiewicz | 88ae4d8 | 2007-10-13 17:47:53 +0200 | [diff] [blame] | 368 | hwif->set_pio_mode = &sc1200_set_pio_mode; |
| 369 | hwif->set_dma_mode = &sc1200_set_dma_mode; |
| 370 | |
Bartlomiej Zolnierkiewicz | cb824c3 | 2007-10-16 22:29:53 +0200 | [diff] [blame] | 371 | hwif->drives[0].autotune = 1; |
| 372 | hwif->drives[1].autotune = 1; |
| 373 | |
Bartlomiej Zolnierkiewicz | 88ae4d8 | 2007-10-13 17:47:53 +0200 | [diff] [blame] | 374 | if (hwif->dma_base == 0) |
| 375 | return; |
| 376 | |
| 377 | hwif->udma_filter = sc1200_udma_filter; |
Bartlomiej Zolnierkiewicz | 88ae4d8 | 2007-10-13 17:47:53 +0200 | [diff] [blame] | 378 | hwif->ide_dma_end = &sc1200_ide_dma_end; |
| 379 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | hwif->ultra_mask = 0x07; |
| 381 | hwif->mwdma_mask = 0x07; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | } |
| 383 | |
| 384 | static ide_pci_device_t sc1200_chipset __devinitdata = { |
| 385 | .name = "SC1200", |
| 386 | .init_hwif = init_hwif_sc1200, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | .autodma = AUTODMA, |
Bartlomiej Zolnierkiewicz | 7cab14a | 2007-10-19 00:30:06 +0200 | [diff] [blame^] | 388 | .host_flags = IDE_HFLAG_ABUSE_DMA_MODES | IDE_HFLAG_POST_SET_MODE | |
| 389 | IDE_HFLAG_BOOTABLE, |
Bartlomiej Zolnierkiewicz | 4099d14 | 2007-07-20 01:11:59 +0200 | [diff] [blame] | 390 | .pio_mask = ATA_PIO4, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | }; |
| 392 | |
| 393 | static int __devinit sc1200_init_one(struct pci_dev *dev, const struct pci_device_id *id) |
| 394 | { |
| 395 | return ide_setup_pci_device(dev, &sc1200_chipset); |
| 396 | } |
| 397 | |
Bartlomiej Zolnierkiewicz | 9cbcc5e | 2007-10-16 22:29:56 +0200 | [diff] [blame] | 398 | static const struct pci_device_id sc1200_pci_tbl[] = { |
| 399 | { PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_SCx200_IDE), 0}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | { 0, }, |
| 401 | }; |
| 402 | MODULE_DEVICE_TABLE(pci, sc1200_pci_tbl); |
| 403 | |
| 404 | static struct pci_driver driver = { |
| 405 | .name = "SC1200_IDE", |
| 406 | .id_table = sc1200_pci_tbl, |
| 407 | .probe = sc1200_init_one, |
Alexey Dobriyan | b86cc29 | 2006-10-03 01:14:32 -0700 | [diff] [blame] | 408 | #ifdef CONFIG_PM |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | .suspend = sc1200_suspend, |
| 410 | .resume = sc1200_resume, |
Alexey Dobriyan | b86cc29 | 2006-10-03 01:14:32 -0700 | [diff] [blame] | 411 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | }; |
| 413 | |
Bartlomiej Zolnierkiewicz | 82ab1ee | 2007-01-27 13:46:56 +0100 | [diff] [blame] | 414 | static int __init sc1200_ide_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | { |
| 416 | return ide_pci_register_driver(&driver); |
| 417 | } |
| 418 | |
| 419 | module_init(sc1200_ide_init); |
| 420 | |
| 421 | MODULE_AUTHOR("Mark Lord"); |
| 422 | MODULE_DESCRIPTION("PCI driver module for NS SC1200 IDE"); |
| 423 | MODULE_LICENSE("GPL"); |