| 1 | /* |
| 2 | * VIA IDE driver for Linux. Supported southbridges: |
| 3 | * |
| 4 | * vt82c576, vt82c586, vt82c586a, vt82c586b, vt82c596a, vt82c596b, |
| 5 | * vt82c686, vt82c686a, vt82c686b, vt8231, vt8233, vt8233c, vt8233a, |
| 6 | * vt8235, vt8237, vt8237a |
| 7 | * |
| 8 | * Copyright (c) 2000-2002 Vojtech Pavlik |
| 9 | * Copyright (c) 2007-2010 Bartlomiej Zolnierkiewicz |
| 10 | * |
| 11 | * Based on the work of: |
| 12 | * Michel Aubry |
| 13 | * Jeff Garzik |
| 14 | * Andre Hedrick |
| 15 | * |
| 16 | * Documentation: |
| 17 | * Obsolete device documentation publicly available from via.com.tw |
| 18 | * Current device documentation available under NDA only |
| 19 | */ |
| 20 | |
| 21 | /* |
| 22 | * This program is free software; you can redistribute it and/or modify it |
| 23 | * under the terms of the GNU General Public License version 2 as published by |
| 24 | * the Free Software Foundation. |
| 25 | */ |
| 26 | |
| 27 | #include <linux/module.h> |
| 28 | #include <linux/kernel.h> |
| 29 | #include <linux/slab.h> |
| 30 | #include <linux/pci.h> |
| 31 | #include <linux/init.h> |
| 32 | #include <linux/ide.h> |
| 33 | #include <linux/dmi.h> |
| 34 | |
| 35 | #ifdef CONFIG_PPC_CHRP |
| 36 | #include <asm/processor.h> |
| 37 | #endif |
| 38 | |
| 39 | #define DRV_NAME "via82cxxx" |
| 40 | |
| 41 | #define VIA_IDE_ENABLE 0x40 |
| 42 | #define VIA_IDE_CONFIG 0x41 |
| 43 | #define VIA_FIFO_CONFIG 0x43 |
| 44 | #define VIA_MISC_1 0x44 |
| 45 | #define VIA_MISC_2 0x45 |
| 46 | #define VIA_MISC_3 0x46 |
| 47 | #define VIA_DRIVE_TIMING 0x48 |
| 48 | #define VIA_8BIT_TIMING 0x4e |
| 49 | #define VIA_ADDRESS_SETUP 0x4c |
| 50 | #define VIA_UDMA_TIMING 0x50 |
| 51 | |
| 52 | #define VIA_BAD_PREQ 0x01 /* Crashes if PREQ# till DDACK# set */ |
| 53 | #define VIA_BAD_CLK66 0x02 /* 66 MHz clock doesn't work correctly */ |
| 54 | #define VIA_SET_FIFO 0x04 /* Needs to have FIFO split set */ |
| 55 | #define VIA_NO_UNMASK 0x08 /* Doesn't work with IRQ unmasking on */ |
| 56 | #define VIA_BAD_ID 0x10 /* Has wrong vendor ID (0x1107) */ |
| 57 | #define VIA_BAD_AST 0x20 /* Don't touch Address Setup Timing */ |
| 58 | #define VIA_SATA_PATA 0x80 /* SATA/PATA combined configuration */ |
| 59 | |
| 60 | enum { |
| 61 | VIA_IDFLAG_SINGLE = (1 << 1), /* single channel controller */ |
| 62 | }; |
| 63 | |
| 64 | /* |
| 65 | * VIA SouthBridge chips. |
| 66 | */ |
| 67 | |
| 68 | static struct via_isa_bridge { |
| 69 | char *name; |
| 70 | u16 id; |
| 71 | u8 rev_min; |
| 72 | u8 rev_max; |
| 73 | u8 udma_mask; |
| 74 | u8 flags; |
| 75 | } via_isa_bridges[] = { |
| 76 | { "vx855", PCI_DEVICE_ID_VIA_VX855, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST | VIA_SATA_PATA }, |
| 77 | { "vx800", PCI_DEVICE_ID_VIA_VX800, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST | VIA_SATA_PATA }, |
| 78 | { "cx700", PCI_DEVICE_ID_VIA_CX700, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST | VIA_SATA_PATA }, |
| 79 | { "vt8261", PCI_DEVICE_ID_VIA_8261, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST }, |
| 80 | { "vt8237s", PCI_DEVICE_ID_VIA_8237S, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST }, |
| 81 | { "vt6410", PCI_DEVICE_ID_VIA_6410, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST }, |
| 82 | { "vt6415", PCI_DEVICE_ID_VIA_6415, 0x00, 0xff, ATA_UDMA6, VIA_BAD_AST }, |
| 83 | { "vt8251", PCI_DEVICE_ID_VIA_8251, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST }, |
| 84 | { "vt8237", PCI_DEVICE_ID_VIA_8237, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST }, |
| 85 | { "vt8237a", PCI_DEVICE_ID_VIA_8237A, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST }, |
| 86 | { "vt8235", PCI_DEVICE_ID_VIA_8235, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST }, |
| 87 | { "vt8233a", PCI_DEVICE_ID_VIA_8233A, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST }, |
| 88 | { "vt8233c", PCI_DEVICE_ID_VIA_8233C_0, 0x00, 0x2f, ATA_UDMA5, }, |
| 89 | { "vt8233", PCI_DEVICE_ID_VIA_8233_0, 0x00, 0x2f, ATA_UDMA5, }, |
| 90 | { "vt8231", PCI_DEVICE_ID_VIA_8231, 0x00, 0x2f, ATA_UDMA5, }, |
| 91 | { "vt82c686b", PCI_DEVICE_ID_VIA_82C686, 0x40, 0x4f, ATA_UDMA5, }, |
| 92 | { "vt82c686a", PCI_DEVICE_ID_VIA_82C686, 0x10, 0x2f, ATA_UDMA4, }, |
| 93 | { "vt82c686", PCI_DEVICE_ID_VIA_82C686, 0x00, 0x0f, ATA_UDMA2, VIA_BAD_CLK66 }, |
| 94 | { "vt82c596b", PCI_DEVICE_ID_VIA_82C596, 0x10, 0x2f, ATA_UDMA4, }, |
| 95 | { "vt82c596a", PCI_DEVICE_ID_VIA_82C596, 0x00, 0x0f, ATA_UDMA2, VIA_BAD_CLK66 }, |
| 96 | { "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x47, 0x4f, ATA_UDMA2, VIA_SET_FIFO }, |
| 97 | { "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x40, 0x46, ATA_UDMA2, VIA_SET_FIFO | VIA_BAD_PREQ }, |
| 98 | { "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x30, 0x3f, ATA_UDMA2, VIA_SET_FIFO }, |
| 99 | { "vt82c586a", PCI_DEVICE_ID_VIA_82C586_0, 0x20, 0x2f, ATA_UDMA2, VIA_SET_FIFO }, |
| 100 | { "vt82c586", PCI_DEVICE_ID_VIA_82C586_0, 0x00, 0x0f, 0x00, VIA_SET_FIFO }, |
| 101 | { "vt82c576", PCI_DEVICE_ID_VIA_82C576, 0x00, 0x2f, 0x00, VIA_SET_FIFO | VIA_NO_UNMASK }, |
| 102 | { "vt82c576", PCI_DEVICE_ID_VIA_82C576, 0x00, 0x2f, 0x00, VIA_SET_FIFO | VIA_NO_UNMASK | VIA_BAD_ID }, |
| 103 | { "vtxxxx", PCI_DEVICE_ID_VIA_ANON, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST }, |
| 104 | { NULL } |
| 105 | }; |
| 106 | |
| 107 | static unsigned int via_clock; |
| 108 | static char *via_dma[] = { "16", "25", "33", "44", "66", "100", "133" }; |
| 109 | |
| 110 | struct via82cxxx_dev |
| 111 | { |
| 112 | struct via_isa_bridge *via_config; |
| 113 | unsigned int via_80w; |
| 114 | }; |
| 115 | |
| 116 | /** |
| 117 | * via_set_speed - write timing registers |
| 118 | * @dev: PCI device |
| 119 | * @dn: device |
| 120 | * @timing: IDE timing data to use |
| 121 | * |
| 122 | * via_set_speed writes timing values to the chipset registers |
| 123 | */ |
| 124 | |
| 125 | static void via_set_speed(ide_hwif_t *hwif, u8 dn, struct ide_timing *timing) |
| 126 | { |
| 127 | struct pci_dev *dev = to_pci_dev(hwif->dev); |
| 128 | struct ide_host *host = pci_get_drvdata(dev); |
| 129 | struct via82cxxx_dev *vdev = host->host_priv; |
| 130 | u8 t; |
| 131 | |
| 132 | if (~vdev->via_config->flags & VIA_BAD_AST) { |
| 133 | pci_read_config_byte(dev, VIA_ADDRESS_SETUP, &t); |
| 134 | t = (t & ~(3 << ((3 - dn) << 1))) | ((clamp_val(timing->setup, 1, 4) - 1) << ((3 - dn) << 1)); |
| 135 | pci_write_config_byte(dev, VIA_ADDRESS_SETUP, t); |
| 136 | } |
| 137 | |
| 138 | pci_write_config_byte(dev, VIA_8BIT_TIMING + (1 - (dn >> 1)), |
| 139 | ((clamp_val(timing->act8b, 1, 16) - 1) << 4) | (clamp_val(timing->rec8b, 1, 16) - 1)); |
| 140 | |
| 141 | pci_write_config_byte(dev, VIA_DRIVE_TIMING + (3 - dn), |
| 142 | ((clamp_val(timing->active, 1, 16) - 1) << 4) | (clamp_val(timing->recover, 1, 16) - 1)); |
| 143 | |
| 144 | switch (vdev->via_config->udma_mask) { |
| 145 | case ATA_UDMA2: t = timing->udma ? (0xe0 | (clamp_val(timing->udma, 2, 5) - 2)) : 0x03; break; |
| 146 | case ATA_UDMA4: t = timing->udma ? (0xe8 | (clamp_val(timing->udma, 2, 9) - 2)) : 0x0f; break; |
| 147 | case ATA_UDMA5: t = timing->udma ? (0xe0 | (clamp_val(timing->udma, 2, 9) - 2)) : 0x07; break; |
| 148 | case ATA_UDMA6: t = timing->udma ? (0xe0 | (clamp_val(timing->udma, 2, 9) - 2)) : 0x07; break; |
| 149 | } |
| 150 | |
| 151 | /* Set UDMA unless device is not UDMA capable */ |
| 152 | if (vdev->via_config->udma_mask) { |
| 153 | u8 udma_etc; |
| 154 | |
| 155 | pci_read_config_byte(dev, VIA_UDMA_TIMING + 3 - dn, &udma_etc); |
| 156 | |
| 157 | /* clear transfer mode bit */ |
| 158 | udma_etc &= ~0x20; |
| 159 | |
| 160 | if (timing->udma) { |
| 161 | /* preserve 80-wire cable detection bit */ |
| 162 | udma_etc &= 0x10; |
| 163 | udma_etc |= t; |
| 164 | } |
| 165 | |
| 166 | pci_write_config_byte(dev, VIA_UDMA_TIMING + 3 - dn, udma_etc); |
| 167 | } |
| 168 | } |
| 169 | |
| 170 | /** |
| 171 | * via_set_drive - configure transfer mode |
| 172 | * @hwif: port |
| 173 | * @drive: Drive to set up |
| 174 | * |
| 175 | * via_set_drive() computes timing values configures the chipset to |
| 176 | * a desired transfer mode. It also can be called by upper layers. |
| 177 | */ |
| 178 | |
| 179 | static void via_set_drive(ide_hwif_t *hwif, ide_drive_t *drive) |
| 180 | { |
| 181 | ide_drive_t *peer = ide_get_pair_dev(drive); |
| 182 | struct pci_dev *dev = to_pci_dev(hwif->dev); |
| 183 | struct ide_host *host = pci_get_drvdata(dev); |
| 184 | struct via82cxxx_dev *vdev = host->host_priv; |
| 185 | struct ide_timing t, p; |
| 186 | unsigned int T, UT; |
| 187 | const u8 speed = drive->dma_mode; |
| 188 | |
| 189 | T = 1000000000 / via_clock; |
| 190 | |
| 191 | switch (vdev->via_config->udma_mask) { |
| 192 | case ATA_UDMA2: UT = T; break; |
| 193 | case ATA_UDMA4: UT = T/2; break; |
| 194 | case ATA_UDMA5: UT = T/3; break; |
| 195 | case ATA_UDMA6: UT = T/4; break; |
| 196 | default: UT = T; |
| 197 | } |
| 198 | |
| 199 | ide_timing_compute(drive, speed, &t, T, UT); |
| 200 | |
| 201 | if (peer) { |
| 202 | ide_timing_compute(peer, peer->pio_mode, &p, T, UT); |
| 203 | ide_timing_merge(&p, &t, &t, IDE_TIMING_8BIT); |
| 204 | } |
| 205 | |
| 206 | via_set_speed(hwif, drive->dn, &t); |
| 207 | } |
| 208 | |
| 209 | /** |
| 210 | * via_set_pio_mode - set host controller for PIO mode |
| 211 | * @hwif: port |
| 212 | * @drive: drive |
| 213 | * |
| 214 | * A callback from the upper layers for PIO-only tuning. |
| 215 | */ |
| 216 | |
| 217 | static void via_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) |
| 218 | { |
| 219 | drive->dma_mode = drive->pio_mode; |
| 220 | via_set_drive(hwif, drive); |
| 221 | } |
| 222 | |
| 223 | static struct via_isa_bridge *via_config_find(struct pci_dev **isa) |
| 224 | { |
| 225 | struct via_isa_bridge *via_config; |
| 226 | |
| 227 | for (via_config = via_isa_bridges; |
| 228 | via_config->id != PCI_DEVICE_ID_VIA_ANON; via_config++) |
| 229 | if ((*isa = pci_get_device(PCI_VENDOR_ID_VIA + |
| 230 | !!(via_config->flags & VIA_BAD_ID), |
| 231 | via_config->id, NULL))) { |
| 232 | |
| 233 | if ((*isa)->revision >= via_config->rev_min && |
| 234 | (*isa)->revision <= via_config->rev_max) |
| 235 | break; |
| 236 | pci_dev_put(*isa); |
| 237 | } |
| 238 | |
| 239 | return via_config; |
| 240 | } |
| 241 | |
| 242 | /* |
| 243 | * Check and handle 80-wire cable presence |
| 244 | */ |
| 245 | static void via_cable_detect(struct via82cxxx_dev *vdev, u32 u) |
| 246 | { |
| 247 | int i; |
| 248 | |
| 249 | switch (vdev->via_config->udma_mask) { |
| 250 | case ATA_UDMA4: |
| 251 | for (i = 24; i >= 0; i -= 8) |
| 252 | if (((u >> (i & 16)) & 8) && |
| 253 | ((u >> i) & 0x20) && |
| 254 | (((u >> i) & 7) < 2)) { |
| 255 | /* |
| 256 | * 2x PCI clock and |
| 257 | * UDMA w/ < 3T/cycle |
| 258 | */ |
| 259 | vdev->via_80w |= (1 << (1 - (i >> 4))); |
| 260 | } |
| 261 | break; |
| 262 | |
| 263 | case ATA_UDMA5: |
| 264 | for (i = 24; i >= 0; i -= 8) |
| 265 | if (((u >> i) & 0x10) || |
| 266 | (((u >> i) & 0x20) && |
| 267 | (((u >> i) & 7) < 4))) { |
| 268 | /* BIOS 80-wire bit or |
| 269 | * UDMA w/ < 60ns/cycle |
| 270 | */ |
| 271 | vdev->via_80w |= (1 << (1 - (i >> 4))); |
| 272 | } |
| 273 | break; |
| 274 | |
| 275 | case ATA_UDMA6: |
| 276 | for (i = 24; i >= 0; i -= 8) |
| 277 | if (((u >> i) & 0x10) || |
| 278 | (((u >> i) & 0x20) && |
| 279 | (((u >> i) & 7) < 6))) { |
| 280 | /* BIOS 80-wire bit or |
| 281 | * UDMA w/ < 60ns/cycle |
| 282 | */ |
| 283 | vdev->via_80w |= (1 << (1 - (i >> 4))); |
| 284 | } |
| 285 | break; |
| 286 | } |
| 287 | } |
| 288 | |
| 289 | /** |
| 290 | * init_chipset_via82cxxx - initialization handler |
| 291 | * @dev: PCI device |
| 292 | * |
| 293 | * The initialization callback. Here we determine the IDE chip type |
| 294 | * and initialize its drive independent registers. |
| 295 | */ |
| 296 | |
| 297 | static int init_chipset_via82cxxx(struct pci_dev *dev) |
| 298 | { |
| 299 | struct ide_host *host = pci_get_drvdata(dev); |
| 300 | struct via82cxxx_dev *vdev = host->host_priv; |
| 301 | struct via_isa_bridge *via_config = vdev->via_config; |
| 302 | u8 t, v; |
| 303 | u32 u; |
| 304 | |
| 305 | /* |
| 306 | * Detect cable and configure Clk66 |
| 307 | */ |
| 308 | pci_read_config_dword(dev, VIA_UDMA_TIMING, &u); |
| 309 | |
| 310 | via_cable_detect(vdev, u); |
| 311 | |
| 312 | if (via_config->udma_mask == ATA_UDMA4) { |
| 313 | /* Enable Clk66 */ |
| 314 | pci_write_config_dword(dev, VIA_UDMA_TIMING, u|0x80008); |
| 315 | } else if (via_config->flags & VIA_BAD_CLK66) { |
| 316 | /* Would cause trouble on 596a and 686 */ |
| 317 | pci_write_config_dword(dev, VIA_UDMA_TIMING, u & ~0x80008); |
| 318 | } |
| 319 | |
| 320 | /* |
| 321 | * Check whether interfaces are enabled. |
| 322 | */ |
| 323 | |
| 324 | pci_read_config_byte(dev, VIA_IDE_ENABLE, &v); |
| 325 | |
| 326 | /* |
| 327 | * Set up FIFO sizes and thresholds. |
| 328 | */ |
| 329 | |
| 330 | pci_read_config_byte(dev, VIA_FIFO_CONFIG, &t); |
| 331 | |
| 332 | /* Disable PREQ# till DDACK# */ |
| 333 | if (via_config->flags & VIA_BAD_PREQ) { |
| 334 | /* Would crash on 586b rev 41 */ |
| 335 | t &= 0x7f; |
| 336 | } |
| 337 | |
| 338 | /* Fix FIFO split between channels */ |
| 339 | if (via_config->flags & VIA_SET_FIFO) { |
| 340 | t &= (t & 0x9f); |
| 341 | switch (v & 3) { |
| 342 | case 2: t |= 0x00; break; /* 16 on primary */ |
| 343 | case 1: t |= 0x60; break; /* 16 on secondary */ |
| 344 | case 3: t |= 0x20; break; /* 8 pri 8 sec */ |
| 345 | } |
| 346 | } |
| 347 | |
| 348 | pci_write_config_byte(dev, VIA_FIFO_CONFIG, t); |
| 349 | |
| 350 | return 0; |
| 351 | } |
| 352 | |
| 353 | /* |
| 354 | * Cable special cases |
| 355 | */ |
| 356 | |
| 357 | static const struct dmi_system_id cable_dmi_table[] = { |
| 358 | { |
| 359 | .ident = "Acer Ferrari 3400", |
| 360 | .matches = { |
| 361 | DMI_MATCH(DMI_BOARD_VENDOR, "Acer,Inc."), |
| 362 | DMI_MATCH(DMI_BOARD_NAME, "Ferrari 3400"), |
| 363 | }, |
| 364 | }, |
| 365 | { } |
| 366 | }; |
| 367 | |
| 368 | static int via_cable_override(struct pci_dev *pdev) |
| 369 | { |
| 370 | /* Systems by DMI */ |
| 371 | if (dmi_check_system(cable_dmi_table)) |
| 372 | return 1; |
| 373 | |
| 374 | /* Arima W730-K8/Targa Visionary 811/... */ |
| 375 | if (pdev->subsystem_vendor == 0x161F && |
| 376 | pdev->subsystem_device == 0x2032) |
| 377 | return 1; |
| 378 | |
| 379 | return 0; |
| 380 | } |
| 381 | |
| 382 | static u8 via82cxxx_cable_detect(ide_hwif_t *hwif) |
| 383 | { |
| 384 | struct pci_dev *pdev = to_pci_dev(hwif->dev); |
| 385 | struct ide_host *host = pci_get_drvdata(pdev); |
| 386 | struct via82cxxx_dev *vdev = host->host_priv; |
| 387 | |
| 388 | if (via_cable_override(pdev)) |
| 389 | return ATA_CBL_PATA40_SHORT; |
| 390 | |
| 391 | if ((vdev->via_config->flags & VIA_SATA_PATA) && hwif->channel == 0) |
| 392 | return ATA_CBL_SATA; |
| 393 | |
| 394 | if ((vdev->via_80w >> hwif->channel) & 1) |
| 395 | return ATA_CBL_PATA80; |
| 396 | else |
| 397 | return ATA_CBL_PATA40; |
| 398 | } |
| 399 | |
| 400 | static const struct ide_port_ops via_port_ops = { |
| 401 | .set_pio_mode = via_set_pio_mode, |
| 402 | .set_dma_mode = via_set_drive, |
| 403 | .cable_detect = via82cxxx_cable_detect, |
| 404 | }; |
| 405 | |
| 406 | static const struct ide_port_info via82cxxx_chipset __devinitdata = { |
| 407 | .name = DRV_NAME, |
| 408 | .init_chipset = init_chipset_via82cxxx, |
| 409 | .enablebits = { { 0x40, 0x02, 0x02 }, { 0x40, 0x01, 0x01 } }, |
| 410 | .port_ops = &via_port_ops, |
| 411 | .host_flags = IDE_HFLAG_PIO_NO_BLACKLIST | |
| 412 | IDE_HFLAG_POST_SET_MODE | |
| 413 | IDE_HFLAG_IO_32BIT, |
| 414 | .pio_mask = ATA_PIO5, |
| 415 | .swdma_mask = ATA_SWDMA2, |
| 416 | .mwdma_mask = ATA_MWDMA2, |
| 417 | }; |
| 418 | |
| 419 | static int __devinit via_init_one(struct pci_dev *dev, const struct pci_device_id *id) |
| 420 | { |
| 421 | struct pci_dev *isa = NULL; |
| 422 | struct via_isa_bridge *via_config; |
| 423 | struct via82cxxx_dev *vdev; |
| 424 | int rc; |
| 425 | u8 idx = id->driver_data; |
| 426 | struct ide_port_info d; |
| 427 | |
| 428 | d = via82cxxx_chipset; |
| 429 | |
| 430 | /* |
| 431 | * Find the ISA bridge and check we know what it is. |
| 432 | */ |
| 433 | via_config = via_config_find(&isa); |
| 434 | |
| 435 | /* |
| 436 | * Print the boot message. |
| 437 | */ |
| 438 | printk(KERN_INFO DRV_NAME " %s: VIA %s (rev %02x) IDE %sDMA%s\n", |
| 439 | pci_name(dev), via_config->name, isa->revision, |
| 440 | via_config->udma_mask ? "U" : "MW", |
| 441 | via_dma[via_config->udma_mask ? |
| 442 | (fls(via_config->udma_mask) - 1) : 0]); |
| 443 | |
| 444 | pci_dev_put(isa); |
| 445 | |
| 446 | /* |
| 447 | * Determine system bus clock. |
| 448 | */ |
| 449 | via_clock = (ide_pci_clk ? ide_pci_clk : 33) * 1000; |
| 450 | |
| 451 | switch (via_clock) { |
| 452 | case 33000: via_clock = 33333; break; |
| 453 | case 37000: via_clock = 37500; break; |
| 454 | case 41000: via_clock = 41666; break; |
| 455 | } |
| 456 | |
| 457 | if (via_clock < 20000 || via_clock > 50000) { |
| 458 | printk(KERN_WARNING DRV_NAME ": User given PCI clock speed " |
| 459 | "impossible (%d), using 33 MHz instead.\n", via_clock); |
| 460 | via_clock = 33333; |
| 461 | } |
| 462 | |
| 463 | if (idx == 1) |
| 464 | d.enablebits[1].reg = d.enablebits[0].reg = 0; |
| 465 | else |
| 466 | d.host_flags |= IDE_HFLAG_NO_AUTODMA; |
| 467 | |
| 468 | if (idx == VIA_IDFLAG_SINGLE) |
| 469 | d.host_flags |= IDE_HFLAG_SINGLE; |
| 470 | |
| 471 | if ((via_config->flags & VIA_NO_UNMASK) == 0) |
| 472 | d.host_flags |= IDE_HFLAG_UNMASK_IRQS; |
| 473 | |
| 474 | d.udma_mask = via_config->udma_mask; |
| 475 | |
| 476 | vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); |
| 477 | if (!vdev) { |
| 478 | printk(KERN_ERR DRV_NAME " %s: out of memory :(\n", |
| 479 | pci_name(dev)); |
| 480 | return -ENOMEM; |
| 481 | } |
| 482 | |
| 483 | vdev->via_config = via_config; |
| 484 | |
| 485 | rc = ide_pci_init_one(dev, &d, vdev); |
| 486 | if (rc) |
| 487 | kfree(vdev); |
| 488 | |
| 489 | return rc; |
| 490 | } |
| 491 | |
| 492 | static void __devexit via_remove(struct pci_dev *dev) |
| 493 | { |
| 494 | struct ide_host *host = pci_get_drvdata(dev); |
| 495 | struct via82cxxx_dev *vdev = host->host_priv; |
| 496 | |
| 497 | ide_pci_remove(dev); |
| 498 | kfree(vdev); |
| 499 | } |
| 500 | |
| 501 | static const struct pci_device_id via_pci_tbl[] = { |
| 502 | { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C576_1), 0 }, |
| 503 | { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C586_1), 0 }, |
| 504 | { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_CX700_IDE), 0 }, |
| 505 | { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_VX855_IDE), VIA_IDFLAG_SINGLE }, |
| 506 | { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_6410), 1 }, |
| 507 | { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_6415), 1 }, |
| 508 | { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_SATA_EIDE), 1 }, |
| 509 | { 0, }, |
| 510 | }; |
| 511 | MODULE_DEVICE_TABLE(pci, via_pci_tbl); |
| 512 | |
| 513 | static struct pci_driver via_pci_driver = { |
| 514 | .name = "VIA_IDE", |
| 515 | .id_table = via_pci_tbl, |
| 516 | .probe = via_init_one, |
| 517 | .remove = __devexit_p(via_remove), |
| 518 | .suspend = ide_pci_suspend, |
| 519 | .resume = ide_pci_resume, |
| 520 | }; |
| 521 | |
| 522 | static int __init via_ide_init(void) |
| 523 | { |
| 524 | return ide_pci_register_driver(&via_pci_driver); |
| 525 | } |
| 526 | |
| 527 | static void __exit via_ide_exit(void) |
| 528 | { |
| 529 | pci_unregister_driver(&via_pci_driver); |
| 530 | } |
| 531 | |
| 532 | module_init(via_ide_init); |
| 533 | module_exit(via_ide_exit); |
| 534 | |
| 535 | MODULE_AUTHOR("Vojtech Pavlik, Bartlomiej Zolnierkiewicz, Michel Aubry, Jeff Garzik, Andre Hedrick"); |
| 536 | MODULE_DESCRIPTION("PCI driver module for VIA IDE"); |
| 537 | MODULE_LICENSE("GPL"); |