Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1 | /* |
| 2 | * pata_ali.c - ALI 15x3 PATA for new ATA layer |
| 3 | * (C) 2005 Red Hat Inc |
| 4 | * Alan Cox <alan@redhat.com> |
| 5 | * |
| 6 | * based in part upon |
| 7 | * linux/drivers/ide/pci/alim15x3.c Version 0.17 2003/01/02 |
| 8 | * |
| 9 | * Copyright (C) 1998-2000 Michel Aubry, Maintainer |
| 10 | * Copyright (C) 1998-2000 Andrzej Krzysztofowicz, Maintainer |
| 11 | * Copyright (C) 1999-2000 CJ, cjtsai@ali.com.tw, Maintainer |
| 12 | * |
| 13 | * Copyright (C) 1998-2000 Andre Hedrick (andre@linux-ide.org) |
| 14 | * May be copied or modified under the terms of the GNU General Public License |
| 15 | * Copyright (C) 2002 Alan Cox <alan@redhat.com> |
| 16 | * ALi (now ULi M5228) support by Clear Zhang <Clear.Zhang@ali.com.tw> |
| 17 | * |
| 18 | * Documentation |
| 19 | * Chipset documentation available under NDA only |
| 20 | * |
| 21 | * TODO/CHECK |
| 22 | * Cannot have ATAPI on both master & slave for rev < c2 (???) but |
| 23 | * otherwise should do atapi DMA. |
| 24 | */ |
| 25 | |
| 26 | #include <linux/kernel.h> |
| 27 | #include <linux/module.h> |
| 28 | #include <linux/pci.h> |
| 29 | #include <linux/init.h> |
| 30 | #include <linux/blkdev.h> |
| 31 | #include <linux/delay.h> |
| 32 | #include <scsi/scsi_host.h> |
| 33 | #include <linux/libata.h> |
| 34 | #include <linux/dmi.h> |
| 35 | |
| 36 | #define DRV_NAME "pata_ali" |
Alan | 8e42a5a | 2006-12-04 16:36:05 +0000 | [diff] [blame] | 37 | #define DRV_VERSION "0.7.2" |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 38 | |
| 39 | /* |
| 40 | * Cable special cases |
| 41 | */ |
| 42 | |
| 43 | static struct dmi_system_id cable_dmi_table[] = { |
| 44 | { |
| 45 | .ident = "HP Pavilion N5430", |
| 46 | .matches = { |
| 47 | DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), |
| 48 | DMI_MATCH(DMI_BOARD_NAME, "OmniBook N32N-736"), |
| 49 | }, |
| 50 | }, |
| 51 | { } |
| 52 | }; |
| 53 | |
| 54 | static int ali_cable_override(struct pci_dev *pdev) |
| 55 | { |
| 56 | /* Fujitsu P2000 */ |
| 57 | if (pdev->subsystem_vendor == 0x10CF && pdev->subsystem_device == 0x10AF) |
| 58 | return 1; |
| 59 | /* Systems by DMI */ |
| 60 | if (dmi_check_system(cable_dmi_table)) |
| 61 | return 1; |
| 62 | return 0; |
| 63 | } |
| 64 | |
| 65 | /** |
| 66 | * ali_c2_cable_detect - cable detection |
| 67 | * @ap: ATA port |
| 68 | * |
| 69 | * Perform cable detection for C2 and later revisions |
| 70 | */ |
| 71 | |
| 72 | static int ali_c2_cable_detect(struct ata_port *ap) |
| 73 | { |
| 74 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
| 75 | u8 ata66; |
| 76 | |
| 77 | /* Certain laptops use short but suitable cables and don't |
| 78 | implement the detect logic */ |
| 79 | |
| 80 | if (ali_cable_override(pdev)) |
Alan Cox | fc08515 | 2006-10-10 14:28:11 -0700 | [diff] [blame] | 81 | return ATA_CBL_PATA40_SHORT; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 82 | |
| 83 | /* Host view cable detect 0x4A bit 0 primary bit 1 secondary |
| 84 | Bit set for 40 pin */ |
| 85 | pci_read_config_byte(pdev, 0x4A, &ata66); |
| 86 | if (ata66 & (1 << ap->port_no)) |
| 87 | return ATA_CBL_PATA40; |
| 88 | else |
| 89 | return ATA_CBL_PATA80; |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * ali_early_error_handler - reset for eary chip |
| 94 | * @ap: ATA port |
| 95 | * |
| 96 | * Handle the reset callback for the later chips with cable detect |
| 97 | */ |
| 98 | |
| 99 | static int ali_c2_pre_reset(struct ata_port *ap) |
| 100 | { |
| 101 | ap->cbl = ali_c2_cable_detect(ap); |
| 102 | return ata_std_prereset(ap); |
| 103 | } |
| 104 | |
| 105 | static void ali_c2_error_handler(struct ata_port *ap) |
| 106 | { |
| 107 | ata_bmdma_drive_eh(ap, ali_c2_pre_reset, |
| 108 | ata_std_softreset, NULL, |
| 109 | ata_std_postreset); |
| 110 | } |
| 111 | |
| 112 | /** |
| 113 | * ali_early_cable_detect - cable detection |
| 114 | * @ap: ATA port |
| 115 | * |
| 116 | * Perform cable detection for older chipsets. This turns out to be |
| 117 | * rather easy to implement |
| 118 | */ |
| 119 | |
| 120 | static int ali_early_cable_detect(struct ata_port *ap) |
| 121 | { |
| 122 | return ATA_CBL_PATA40; |
| 123 | } |
| 124 | |
| 125 | /** |
| 126 | * ali_early_probe_init - reset for early chip |
| 127 | * @ap: ATA port |
| 128 | * |
| 129 | * Handle the reset callback for the early (pre cable detect) chips. |
| 130 | */ |
| 131 | |
| 132 | static int ali_early_pre_reset(struct ata_port *ap) |
| 133 | { |
| 134 | ap->cbl = ali_early_cable_detect(ap); |
| 135 | return ata_std_prereset(ap); |
| 136 | } |
| 137 | |
| 138 | static void ali_early_error_handler(struct ata_port *ap) |
| 139 | { |
| 140 | return ata_bmdma_drive_eh(ap, ali_early_pre_reset, |
| 141 | ata_std_softreset, NULL, |
| 142 | ata_std_postreset); |
| 143 | } |
| 144 | |
| 145 | /** |
| 146 | * ali_20_filter - filter for earlier ALI DMA |
| 147 | * @ap: ALi ATA port |
| 148 | * @adev: attached device |
| 149 | * |
| 150 | * Ensure that we do not do DMA on CD devices. We may be able to |
| 151 | * fix that later on. Also ensure we do not do UDMA on WDC drives |
| 152 | */ |
| 153 | |
| 154 | static unsigned long ali_20_filter(const struct ata_port *ap, struct ata_device *adev, unsigned long mask) |
| 155 | { |
Tejun Heo | 8bfa79f | 2007-01-02 20:19:40 +0900 | [diff] [blame] | 156 | char model_num[ATA_ID_PROD_LEN + 1]; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 157 | /* No DMA on anything but a disk for now */ |
| 158 | if (adev->class != ATA_DEV_ATA) |
| 159 | mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA); |
Tejun Heo | 8bfa79f | 2007-01-02 20:19:40 +0900 | [diff] [blame] | 160 | ata_id_c_string(adev->id, model_num, ATA_ID_PROD, sizeof(model_num)); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 161 | if (strstr(model_num, "WDC")) |
| 162 | return mask &= ~ATA_MASK_UDMA; |
| 163 | return ata_pci_default_filter(ap, adev, mask); |
| 164 | } |
| 165 | |
| 166 | /** |
| 167 | * ali_fifo_control - FIFO manager |
| 168 | * @ap: ALi channel to control |
| 169 | * @adev: device for FIFO control |
| 170 | * @on: 0 for off 1 for on |
| 171 | * |
| 172 | * Enable or disable the FIFO on a given device. Because of the way the |
| 173 | * ALi FIFO works it provides a boost on ATA disk but can be confused by |
| 174 | * ATAPI and we must therefore manage it. |
| 175 | */ |
| 176 | |
| 177 | static void ali_fifo_control(struct ata_port *ap, struct ata_device *adev, int on) |
| 178 | { |
| 179 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
| 180 | int pio_fifo = 0x54 + ap->port_no; |
| 181 | u8 fifo; |
| 182 | int shift = 4 * adev->devno; |
| 183 | |
| 184 | /* ATA - FIFO on set nibble to 0x05, ATAPI - FIFO off, set nibble to |
| 185 | 0x00. Not all the docs agree but the behaviour we now use is the |
| 186 | one stated in the BIOS Programming Guide */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 187 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 188 | pci_read_config_byte(pdev, pio_fifo, &fifo); |
| 189 | fifo &= ~(0x0F << shift); |
| 190 | if (on) |
| 191 | fifo |= (on << shift); |
| 192 | pci_write_config_byte(pdev, pio_fifo, fifo); |
| 193 | } |
| 194 | |
| 195 | /** |
| 196 | * ali_program_modes - load mode registers |
| 197 | * @ap: ALi channel to load |
| 198 | * @adev: Device the timing is for |
| 199 | * @cmd: Command timing |
| 200 | * @data: Data timing |
| 201 | * @ultra: UDMA timing or zero for off |
| 202 | * |
| 203 | * Loads the timing registers for cmd/data and disable UDMA if |
| 204 | * ultra is zero. If ultra is set then load and enable the UDMA |
| 205 | * timing but do not touch the command/data timing. |
| 206 | */ |
| 207 | |
| 208 | static void ali_program_modes(struct ata_port *ap, struct ata_device *adev, struct ata_timing *t, u8 ultra) |
| 209 | { |
| 210 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
| 211 | int cas = 0x58 + 4 * ap->port_no; /* Command timing */ |
| 212 | int cbt = 0x59 + 4 * ap->port_no; /* Command timing */ |
| 213 | int drwt = 0x5A + 4 * ap->port_no + adev->devno; /* R/W timing */ |
| 214 | int udmat = 0x56 + ap->port_no; /* UDMA timing */ |
| 215 | int shift = 4 * adev->devno; |
| 216 | u8 udma; |
| 217 | |
| 218 | if (t != NULL) { |
| 219 | t->setup = FIT(t->setup, 1, 8) & 7; |
| 220 | t->act8b = FIT(t->act8b, 1, 8) & 7; |
| 221 | t->rec8b = FIT(t->rec8b, 1, 16) & 15; |
| 222 | t->active = FIT(t->active, 1, 8) & 7; |
| 223 | t->recover = FIT(t->recover, 1, 16) & 15; |
| 224 | |
| 225 | pci_write_config_byte(pdev, cas, t->setup); |
| 226 | pci_write_config_byte(pdev, cbt, (t->act8b << 4) | t->rec8b); |
| 227 | pci_write_config_byte(pdev, drwt, (t->active << 4) | t->recover); |
| 228 | } |
| 229 | |
| 230 | /* Set up the UDMA enable */ |
| 231 | pci_read_config_byte(pdev, udmat, &udma); |
| 232 | udma &= ~(0x0F << shift); |
| 233 | udma |= ultra << shift; |
| 234 | pci_write_config_byte(pdev, udmat, udma); |
| 235 | } |
| 236 | |
| 237 | /** |
| 238 | * ali_set_piomode - set initial PIO mode data |
| 239 | * @ap: ATA interface |
| 240 | * @adev: ATA device |
| 241 | * |
| 242 | * Program the ALi registers for PIO mode. FIXME: add timings for |
| 243 | * PIO5. |
| 244 | */ |
| 245 | |
| 246 | static void ali_set_piomode(struct ata_port *ap, struct ata_device *adev) |
| 247 | { |
| 248 | struct ata_device *pair = ata_dev_pair(adev); |
| 249 | struct ata_timing t; |
| 250 | unsigned long T = 1000000000 / 33333; /* PCI clock based */ |
| 251 | |
| 252 | ata_timing_compute(adev, adev->pio_mode, &t, T, 1); |
| 253 | if (pair) { |
| 254 | struct ata_timing p; |
| 255 | ata_timing_compute(pair, pair->pio_mode, &p, T, 1); |
| 256 | ata_timing_merge(&p, &t, &t, ATA_TIMING_SETUP|ATA_TIMING_8BIT); |
| 257 | if (pair->dma_mode) { |
| 258 | ata_timing_compute(pair, pair->dma_mode, &p, T, 1); |
| 259 | ata_timing_merge(&p, &t, &t, ATA_TIMING_SETUP|ATA_TIMING_8BIT); |
| 260 | } |
| 261 | } |
| 262 | |
| 263 | /* PIO FIFO is only permitted on ATA disk */ |
| 264 | if (adev->class != ATA_DEV_ATA) |
| 265 | ali_fifo_control(ap, adev, 0x00); |
| 266 | ali_program_modes(ap, adev, &t, 0); |
| 267 | if (adev->class == ATA_DEV_ATA) |
| 268 | ali_fifo_control(ap, adev, 0x05); |
| 269 | |
| 270 | } |
| 271 | |
| 272 | /** |
| 273 | * ali_set_dmamode - set initial DMA mode data |
| 274 | * @ap: ATA interface |
| 275 | * @adev: ATA device |
| 276 | * |
| 277 | * FIXME: MWDMA timings |
| 278 | */ |
| 279 | |
| 280 | static void ali_set_dmamode(struct ata_port *ap, struct ata_device *adev) |
| 281 | { |
| 282 | static u8 udma_timing[7] = { 0xC, 0xB, 0xA, 0x9, 0x8, 0xF, 0xD }; |
| 283 | struct ata_device *pair = ata_dev_pair(adev); |
| 284 | struct ata_timing t; |
| 285 | unsigned long T = 1000000000 / 33333; /* PCI clock based */ |
| 286 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
| 287 | |
| 288 | |
| 289 | if (adev->class == ATA_DEV_ATA) |
| 290 | ali_fifo_control(ap, adev, 0x08); |
| 291 | |
| 292 | if (adev->dma_mode >= XFER_UDMA_0) { |
| 293 | ali_program_modes(ap, adev, NULL, udma_timing[adev->dma_mode - XFER_UDMA_0]); |
| 294 | if (adev->dma_mode >= XFER_UDMA_3) { |
| 295 | u8 reg4b; |
| 296 | pci_read_config_byte(pdev, 0x4B, ®4b); |
| 297 | reg4b |= 1; |
| 298 | pci_write_config_byte(pdev, 0x4B, reg4b); |
| 299 | } |
| 300 | } else { |
| 301 | ata_timing_compute(adev, adev->dma_mode, &t, T, 1); |
| 302 | if (pair) { |
| 303 | struct ata_timing p; |
| 304 | ata_timing_compute(pair, pair->pio_mode, &p, T, 1); |
| 305 | ata_timing_merge(&p, &t, &t, ATA_TIMING_SETUP|ATA_TIMING_8BIT); |
| 306 | if (pair->dma_mode) { |
| 307 | ata_timing_compute(pair, pair->dma_mode, &p, T, 1); |
| 308 | ata_timing_merge(&p, &t, &t, ATA_TIMING_SETUP|ATA_TIMING_8BIT); |
| 309 | } |
| 310 | } |
| 311 | ali_program_modes(ap, adev, &t, 0); |
| 312 | } |
| 313 | } |
| 314 | |
| 315 | /** |
| 316 | * ali_lock_sectors - Keep older devices to 255 sector mode |
| 317 | * @ap: ATA port |
| 318 | * @adev: Device |
| 319 | * |
| 320 | * Called during the bus probe for each device that is found. We use |
| 321 | * this call to lock the sector count of the device to 255 or less on |
| 322 | * older ALi controllers. If we didn't do this then large I/O's would |
| 323 | * require LBA48 commands which the older ALi requires are issued by |
| 324 | * slower PIO methods |
| 325 | */ |
| 326 | |
| 327 | static void ali_lock_sectors(struct ata_port *ap, struct ata_device *adev) |
| 328 | { |
| 329 | adev->max_sectors = 255; |
| 330 | } |
| 331 | |
| 332 | static struct scsi_host_template ali_sht = { |
| 333 | .module = THIS_MODULE, |
| 334 | .name = DRV_NAME, |
| 335 | .ioctl = ata_scsi_ioctl, |
| 336 | .queuecommand = ata_scsi_queuecmd, |
| 337 | .can_queue = ATA_DEF_QUEUE, |
| 338 | .this_id = ATA_SHT_THIS_ID, |
| 339 | .sg_tablesize = LIBATA_MAX_PRD, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 340 | .cmd_per_lun = ATA_SHT_CMD_PER_LUN, |
| 341 | .emulated = ATA_SHT_EMULATED, |
| 342 | .use_clustering = ATA_SHT_USE_CLUSTERING, |
| 343 | .proc_name = DRV_NAME, |
| 344 | .dma_boundary = ATA_DMA_BOUNDARY, |
| 345 | .slave_configure = ata_scsi_slave_config, |
Tejun Heo | afdfe89 | 2006-11-29 11:26:47 +0900 | [diff] [blame] | 346 | .slave_destroy = ata_scsi_slave_destroy, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 347 | .bios_param = ata_std_bios_param, |
Alan | 34d8dfb | 2006-11-22 17:26:06 +0000 | [diff] [blame] | 348 | .resume = ata_scsi_device_resume, |
| 349 | .suspend = ata_scsi_device_suspend, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 350 | }; |
| 351 | |
| 352 | /* |
| 353 | * Port operations for PIO only ALi |
| 354 | */ |
| 355 | |
| 356 | static struct ata_port_operations ali_early_port_ops = { |
| 357 | .port_disable = ata_port_disable, |
| 358 | .set_piomode = ali_set_piomode, |
| 359 | .tf_load = ata_tf_load, |
| 360 | .tf_read = ata_tf_read, |
| 361 | .check_status = ata_check_status, |
| 362 | .exec_command = ata_exec_command, |
| 363 | .dev_select = ata_std_dev_select, |
| 364 | |
| 365 | .freeze = ata_bmdma_freeze, |
| 366 | .thaw = ata_bmdma_thaw, |
| 367 | .error_handler = ali_early_error_handler, |
| 368 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
| 369 | |
| 370 | .qc_prep = ata_qc_prep, |
| 371 | .qc_issue = ata_qc_issue_prot, |
Jeff Garzik | bda3028 | 2006-09-27 05:41:13 -0400 | [diff] [blame] | 372 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 373 | .data_xfer = ata_data_xfer, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 374 | |
| 375 | .irq_handler = ata_interrupt, |
| 376 | .irq_clear = ata_bmdma_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 377 | .irq_on = ata_irq_on, |
| 378 | .irq_ack = ata_irq_ack, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 379 | |
| 380 | .port_start = ata_port_start, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 381 | }; |
| 382 | |
| 383 | /* |
| 384 | * Port operations for DMA capable ALi without cable |
| 385 | * detect |
| 386 | */ |
| 387 | static struct ata_port_operations ali_20_port_ops = { |
| 388 | .port_disable = ata_port_disable, |
| 389 | |
| 390 | .set_piomode = ali_set_piomode, |
| 391 | .set_dmamode = ali_set_dmamode, |
| 392 | .mode_filter = ali_20_filter, |
| 393 | |
| 394 | .tf_load = ata_tf_load, |
| 395 | .tf_read = ata_tf_read, |
| 396 | .check_status = ata_check_status, |
| 397 | .exec_command = ata_exec_command, |
| 398 | .dev_select = ata_std_dev_select, |
| 399 | .dev_config = ali_lock_sectors, |
| 400 | |
| 401 | .freeze = ata_bmdma_freeze, |
| 402 | .thaw = ata_bmdma_thaw, |
| 403 | .error_handler = ali_early_error_handler, |
| 404 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
| 405 | |
| 406 | .bmdma_setup = ata_bmdma_setup, |
| 407 | .bmdma_start = ata_bmdma_start, |
| 408 | .bmdma_stop = ata_bmdma_stop, |
| 409 | .bmdma_status = ata_bmdma_status, |
| 410 | |
| 411 | .qc_prep = ata_qc_prep, |
| 412 | .qc_issue = ata_qc_issue_prot, |
Jeff Garzik | bda3028 | 2006-09-27 05:41:13 -0400 | [diff] [blame] | 413 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 414 | .data_xfer = ata_data_xfer, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 415 | |
| 416 | .irq_handler = ata_interrupt, |
| 417 | .irq_clear = ata_bmdma_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 418 | .irq_on = ata_irq_on, |
| 419 | .irq_ack = ata_irq_ack, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 420 | |
| 421 | .port_start = ata_port_start, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 422 | }; |
| 423 | |
| 424 | /* |
| 425 | * Port operations for DMA capable ALi with cable detect |
| 426 | */ |
| 427 | static struct ata_port_operations ali_c2_port_ops = { |
| 428 | .port_disable = ata_port_disable, |
| 429 | .set_piomode = ali_set_piomode, |
| 430 | .set_dmamode = ali_set_dmamode, |
| 431 | .mode_filter = ata_pci_default_filter, |
| 432 | .tf_load = ata_tf_load, |
| 433 | .tf_read = ata_tf_read, |
| 434 | .check_status = ata_check_status, |
| 435 | .exec_command = ata_exec_command, |
| 436 | .dev_select = ata_std_dev_select, |
| 437 | .dev_config = ali_lock_sectors, |
| 438 | |
| 439 | .freeze = ata_bmdma_freeze, |
| 440 | .thaw = ata_bmdma_thaw, |
| 441 | .error_handler = ali_c2_error_handler, |
| 442 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
| 443 | |
| 444 | .bmdma_setup = ata_bmdma_setup, |
| 445 | .bmdma_start = ata_bmdma_start, |
| 446 | .bmdma_stop = ata_bmdma_stop, |
| 447 | .bmdma_status = ata_bmdma_status, |
| 448 | |
| 449 | .qc_prep = ata_qc_prep, |
| 450 | .qc_issue = ata_qc_issue_prot, |
Jeff Garzik | bda3028 | 2006-09-27 05:41:13 -0400 | [diff] [blame] | 451 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 452 | .data_xfer = ata_data_xfer, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 453 | |
| 454 | .irq_handler = ata_interrupt, |
| 455 | .irq_clear = ata_bmdma_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 456 | .irq_on = ata_irq_on, |
| 457 | .irq_ack = ata_irq_ack, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 458 | |
| 459 | .port_start = ata_port_start, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 460 | }; |
| 461 | |
| 462 | /* |
| 463 | * Port operations for DMA capable ALi with cable detect and LBA48 |
| 464 | */ |
| 465 | static struct ata_port_operations ali_c5_port_ops = { |
| 466 | .port_disable = ata_port_disable, |
| 467 | .set_piomode = ali_set_piomode, |
| 468 | .set_dmamode = ali_set_dmamode, |
| 469 | .mode_filter = ata_pci_default_filter, |
| 470 | .tf_load = ata_tf_load, |
| 471 | .tf_read = ata_tf_read, |
| 472 | .check_status = ata_check_status, |
| 473 | .exec_command = ata_exec_command, |
| 474 | .dev_select = ata_std_dev_select, |
| 475 | |
| 476 | .freeze = ata_bmdma_freeze, |
| 477 | .thaw = ata_bmdma_thaw, |
| 478 | .error_handler = ali_c2_error_handler, |
| 479 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
| 480 | |
| 481 | .bmdma_setup = ata_bmdma_setup, |
| 482 | .bmdma_start = ata_bmdma_start, |
| 483 | .bmdma_stop = ata_bmdma_stop, |
| 484 | .bmdma_status = ata_bmdma_status, |
| 485 | |
| 486 | .qc_prep = ata_qc_prep, |
| 487 | .qc_issue = ata_qc_issue_prot, |
Jeff Garzik | bda3028 | 2006-09-27 05:41:13 -0400 | [diff] [blame] | 488 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 489 | .data_xfer = ata_data_xfer, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 490 | |
| 491 | .irq_handler = ata_interrupt, |
| 492 | .irq_clear = ata_bmdma_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 493 | .irq_on = ata_irq_on, |
| 494 | .irq_ack = ata_irq_ack, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 495 | |
| 496 | .port_start = ata_port_start, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 497 | }; |
| 498 | |
Alan | 34d8dfb | 2006-11-22 17:26:06 +0000 | [diff] [blame] | 499 | |
| 500 | /** |
| 501 | * ali_init_chipset - chip setup function |
| 502 | * @pdev: PCI device of ATA controller |
| 503 | * |
| 504 | * Perform the setup on the device that must be done both at boot |
| 505 | * and at resume time. |
| 506 | */ |
Jeff Garzik | f20b16f | 2006-12-11 11:14:06 -0500 | [diff] [blame] | 507 | |
Alan | 34d8dfb | 2006-11-22 17:26:06 +0000 | [diff] [blame] | 508 | static void ali_init_chipset(struct pci_dev *pdev) |
| 509 | { |
| 510 | u8 rev, tmp; |
| 511 | struct pci_dev *north, *isa_bridge; |
| 512 | |
| 513 | pci_read_config_byte(pdev, PCI_REVISION_ID, &rev); |
| 514 | |
| 515 | /* |
| 516 | * The chipset revision selects the driver operations and |
| 517 | * mode data. |
| 518 | */ |
| 519 | |
| 520 | if (rev >= 0x20 && rev < 0xC2) { |
| 521 | /* 1543-E/F, 1543C-C, 1543C-D, 1543C-E */ |
| 522 | pci_read_config_byte(pdev, 0x4B, &tmp); |
| 523 | /* Clear CD-ROM DMA write bit */ |
| 524 | tmp &= 0x7F; |
| 525 | pci_write_config_byte(pdev, 0x4B, tmp); |
| 526 | } else if (rev >= 0xC2) { |
| 527 | /* Enable cable detection logic */ |
| 528 | pci_read_config_byte(pdev, 0x4B, &tmp); |
| 529 | pci_write_config_byte(pdev, 0x4B, tmp | 0x08); |
| 530 | } |
Alan | 8e42a5a | 2006-12-04 16:36:05 +0000 | [diff] [blame] | 531 | north = pci_get_bus_and_slot(0, PCI_DEVFN(0,0)); |
Alan | 34d8dfb | 2006-11-22 17:26:06 +0000 | [diff] [blame] | 532 | isa_bridge = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL); |
| 533 | |
| 534 | if (north && north->vendor == PCI_VENDOR_ID_AL && isa_bridge) { |
| 535 | /* Configure the ALi bridge logic. For non ALi rely on BIOS. |
| 536 | Set the south bridge enable bit */ |
| 537 | pci_read_config_byte(isa_bridge, 0x79, &tmp); |
| 538 | if (rev == 0xC2) |
| 539 | pci_write_config_byte(isa_bridge, 0x79, tmp | 0x04); |
Alan | 8e42a5a | 2006-12-04 16:36:05 +0000 | [diff] [blame] | 540 | else if (rev > 0xC2 && rev < 0xC5) |
Alan | 34d8dfb | 2006-11-22 17:26:06 +0000 | [diff] [blame] | 541 | pci_write_config_byte(isa_bridge, 0x79, tmp | 0x02); |
| 542 | } |
| 543 | if (rev >= 0x20) { |
| 544 | /* |
| 545 | * CD_ROM DMA on (0x53 bit 0). Enable this even if we want |
| 546 | * to use PIO. 0x53 bit 1 (rev 20 only) - enable FIFO control |
| 547 | * via 0x54/55. |
| 548 | */ |
| 549 | pci_read_config_byte(pdev, 0x53, &tmp); |
| 550 | if (rev <= 0x20) |
| 551 | tmp &= ~0x02; |
| 552 | if (rev >= 0xc7) |
| 553 | tmp |= 0x03; |
| 554 | else |
| 555 | tmp |= 0x01; /* CD_ROM enable for DMA */ |
| 556 | pci_write_config_byte(pdev, 0x53, tmp); |
| 557 | } |
| 558 | pci_dev_put(isa_bridge); |
| 559 | pci_dev_put(north); |
| 560 | ata_pci_clear_simplex(pdev); |
| 561 | } |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 562 | /** |
| 563 | * ali_init_one - discovery callback |
| 564 | * @pdev: PCI device ID |
| 565 | * @id: PCI table info |
| 566 | * |
| 567 | * An ALi IDE interface has been discovered. Figure out what revision |
| 568 | * and perform configuration work before handing it to the ATA layer |
| 569 | */ |
| 570 | |
| 571 | static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id) |
| 572 | { |
| 573 | static struct ata_port_info info_early = { |
| 574 | .sht = &ali_sht, |
| 575 | .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST, |
| 576 | .pio_mask = 0x1f, |
| 577 | .port_ops = &ali_early_port_ops |
| 578 | }; |
| 579 | /* Revision 0x20 added DMA */ |
| 580 | static struct ata_port_info info_20 = { |
| 581 | .sht = &ali_sht, |
| 582 | .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST | ATA_FLAG_PIO_LBA48, |
| 583 | .pio_mask = 0x1f, |
| 584 | .mwdma_mask = 0x07, |
| 585 | .port_ops = &ali_20_port_ops |
| 586 | }; |
| 587 | /* Revision 0x20 with support logic added UDMA */ |
| 588 | static struct ata_port_info info_20_udma = { |
| 589 | .sht = &ali_sht, |
| 590 | .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST | ATA_FLAG_PIO_LBA48, |
| 591 | .pio_mask = 0x1f, |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 592 | .mwdma_mask = 0x07, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 593 | .udma_mask = 0x07, /* UDMA33 */ |
| 594 | .port_ops = &ali_20_port_ops |
| 595 | }; |
| 596 | /* Revision 0xC2 adds UDMA66 */ |
| 597 | static struct ata_port_info info_c2 = { |
| 598 | .sht = &ali_sht, |
| 599 | .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST | ATA_FLAG_PIO_LBA48, |
| 600 | .pio_mask = 0x1f, |
| 601 | .mwdma_mask = 0x07, |
| 602 | .udma_mask = 0x1f, |
| 603 | .port_ops = &ali_c2_port_ops |
| 604 | }; |
| 605 | /* Revision 0xC3 is UDMA100 */ |
| 606 | static struct ata_port_info info_c3 = { |
| 607 | .sht = &ali_sht, |
| 608 | .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST | ATA_FLAG_PIO_LBA48, |
| 609 | .pio_mask = 0x1f, |
| 610 | .mwdma_mask = 0x07, |
| 611 | .udma_mask = 0x3f, |
| 612 | .port_ops = &ali_c2_port_ops |
| 613 | }; |
| 614 | /* Revision 0xC4 is UDMA133 */ |
| 615 | static struct ata_port_info info_c4 = { |
| 616 | .sht = &ali_sht, |
| 617 | .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST | ATA_FLAG_PIO_LBA48, |
| 618 | .pio_mask = 0x1f, |
| 619 | .mwdma_mask = 0x07, |
| 620 | .udma_mask = 0x7f, |
| 621 | .port_ops = &ali_c2_port_ops |
| 622 | }; |
| 623 | /* Revision 0xC5 is UDMA133 with LBA48 DMA */ |
| 624 | static struct ata_port_info info_c5 = { |
| 625 | .sht = &ali_sht, |
| 626 | .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST, |
| 627 | .pio_mask = 0x1f, |
| 628 | .mwdma_mask = 0x07, |
| 629 | .udma_mask = 0x7f, |
| 630 | .port_ops = &ali_c5_port_ops |
| 631 | }; |
| 632 | |
| 633 | static struct ata_port_info *port_info[2]; |
| 634 | u8 rev, tmp; |
Alan | 34d8dfb | 2006-11-22 17:26:06 +0000 | [diff] [blame] | 635 | struct pci_dev *isa_bridge; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 636 | |
| 637 | pci_read_config_byte(pdev, PCI_REVISION_ID, &rev); |
| 638 | |
| 639 | /* |
| 640 | * The chipset revision selects the driver operations and |
| 641 | * mode data. |
| 642 | */ |
| 643 | |
| 644 | if (rev < 0x20) { |
| 645 | port_info[0] = port_info[1] = &info_early; |
| 646 | } else if (rev < 0xC2) { |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 647 | port_info[0] = port_info[1] = &info_20; |
| 648 | } else if (rev == 0xC2) { |
| 649 | port_info[0] = port_info[1] = &info_c2; |
| 650 | } else if (rev == 0xC3) { |
| 651 | port_info[0] = port_info[1] = &info_c3; |
| 652 | } else if (rev == 0xC4) { |
| 653 | port_info[0] = port_info[1] = &info_c4; |
| 654 | } else |
| 655 | port_info[0] = port_info[1] = &info_c5; |
| 656 | |
Alan | 34d8dfb | 2006-11-22 17:26:06 +0000 | [diff] [blame] | 657 | ali_init_chipset(pdev); |
Jeff Garzik | f20b16f | 2006-12-11 11:14:06 -0500 | [diff] [blame] | 658 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 659 | isa_bridge = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL); |
Alan | 34d8dfb | 2006-11-22 17:26:06 +0000 | [diff] [blame] | 660 | if (isa_bridge && rev >= 0x20 && rev < 0xC2) { |
| 661 | /* Are we paired with a UDMA capable chip */ |
| 662 | pci_read_config_byte(isa_bridge, 0x5E, &tmp); |
| 663 | if ((tmp & 0x1E) == 0x12) |
| 664 | port_info[0] = port_info[1] = &info_20_udma; |
| 665 | pci_dev_put(isa_bridge); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 666 | } |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 667 | return ata_pci_init_one(pdev, port_info, 2); |
| 668 | } |
| 669 | |
Alan | 34d8dfb | 2006-11-22 17:26:06 +0000 | [diff] [blame] | 670 | static int ali_reinit_one(struct pci_dev *pdev) |
| 671 | { |
| 672 | ali_init_chipset(pdev); |
| 673 | return ata_pci_device_resume(pdev); |
| 674 | } |
| 675 | |
Jeff Garzik | 2d2744f | 2006-09-28 20:21:59 -0400 | [diff] [blame] | 676 | static const struct pci_device_id ali[] = { |
| 677 | { PCI_VDEVICE(AL, PCI_DEVICE_ID_AL_M5228), }, |
| 678 | { PCI_VDEVICE(AL, PCI_DEVICE_ID_AL_M5229), }, |
| 679 | |
| 680 | { }, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 681 | }; |
| 682 | |
| 683 | static struct pci_driver ali_pci_driver = { |
| 684 | .name = DRV_NAME, |
| 685 | .id_table = ali, |
| 686 | .probe = ali_init_one, |
Alan | 34d8dfb | 2006-11-22 17:26:06 +0000 | [diff] [blame] | 687 | .remove = ata_pci_remove_one, |
| 688 | .suspend = ata_pci_device_suspend, |
| 689 | .resume = ali_reinit_one, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 690 | }; |
| 691 | |
| 692 | static int __init ali_init(void) |
| 693 | { |
| 694 | return pci_register_driver(&ali_pci_driver); |
| 695 | } |
| 696 | |
| 697 | |
| 698 | static void __exit ali_exit(void) |
| 699 | { |
| 700 | pci_unregister_driver(&ali_pci_driver); |
| 701 | } |
| 702 | |
| 703 | |
| 704 | MODULE_AUTHOR("Alan Cox"); |
| 705 | MODULE_DESCRIPTION("low-level driver for ALi PATA"); |
| 706 | MODULE_LICENSE("GPL"); |
| 707 | MODULE_DEVICE_TABLE(pci, ali); |
| 708 | MODULE_VERSION(DRV_VERSION); |
| 709 | |
| 710 | module_init(ali_init); |
| 711 | module_exit(ali_exit); |