pata_pcmcia.c revision eb14120f743d29744d9475bffec56ff4ad43a749
1/* 2 * pata_pcmcia.c - PCMCIA PATA controller driver. 3 * Copyright 2005-2006 Red Hat Inc, all rights reserved. 4 * PCMCIA ident update Copyright 2006 Marcin Juszkiewicz 5 * <openembedded@hrw.one.pl> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2, or (at your option) 10 * any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; see the file COPYING. If not, write to 19 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 20 * 21 * Heavily based upon ide-cs.c 22 * The initial developer of the original code is David A. Hinds 23 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds 24 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. 25 */ 26 27#include <linux/kernel.h> 28#include <linux/module.h> 29#include <linux/init.h> 30#include <linux/blkdev.h> 31#include <linux/delay.h> 32#include <linux/slab.h> 33#include <scsi/scsi_host.h> 34#include <linux/ata.h> 35#include <linux/libata.h> 36 37#include <pcmcia/cs_types.h> 38#include <pcmcia/cs.h> 39#include <pcmcia/cistpl.h> 40#include <pcmcia/ds.h> 41#include <pcmcia/cisreg.h> 42#include <pcmcia/ciscode.h> 43 44 45#define DRV_NAME "pata_pcmcia" 46#define DRV_VERSION "0.3.5" 47 48/* 49 * Private data structure to glue stuff together 50 */ 51 52struct ata_pcmcia_info { 53 struct pcmcia_device *pdev; 54 int ndev; 55 dev_node_t node; 56}; 57 58/** 59 * pcmcia_set_mode - PCMCIA specific mode setup 60 * @link: link 61 * @r_failed_dev: Return pointer for failed device 62 * 63 * Perform the tuning and setup of the devices and timings, which 64 * for PCMCIA is the same as any other controller. We wrap it however 65 * as we need to spot hardware with incorrect or missing master/slave 66 * decode, which alas is embarrassingly common in the PC world 67 */ 68 69static int pcmcia_set_mode(struct ata_link *link, struct ata_device **r_failed_dev) 70{ 71 struct ata_device *master = &link->device[0]; 72 struct ata_device *slave = &link->device[1]; 73 74 if (!ata_dev_enabled(master) || !ata_dev_enabled(slave)) 75 return ata_do_set_mode(link, r_failed_dev); 76 77 if (memcmp(master->id + ATA_ID_FW_REV, slave->id + ATA_ID_FW_REV, 78 ATA_ID_FW_REV_LEN + ATA_ID_PROD_LEN) == 0) { 79 /* Suspicious match, but could be two cards from 80 the same vendor - check serial */ 81 if (memcmp(master->id + ATA_ID_SERNO, slave->id + ATA_ID_SERNO, 82 ATA_ID_SERNO_LEN) == 0 && master->id[ATA_ID_SERNO] >> 8) { 83 ata_dev_printk(slave, KERN_WARNING, "is a ghost device, ignoring.\n"); 84 ata_dev_disable(slave); 85 } 86 } 87 return ata_do_set_mode(link, r_failed_dev); 88} 89 90/** 91 * pcmcia_set_mode_8bit - PCMCIA specific mode setup 92 * @link: link 93 * @r_failed_dev: Return pointer for failed device 94 * 95 * For the simple emulated 8bit stuff the less we do the better. 96 */ 97 98static int pcmcia_set_mode_8bit(struct ata_link *link, 99 struct ata_device **r_failed_dev) 100{ 101 return 0; 102} 103 104/** 105 * ata_data_xfer_8bit - Transfer data by 8bit PIO 106 * @dev: device to target 107 * @buf: data buffer 108 * @buflen: buffer length 109 * @rw: read/write 110 * 111 * Transfer data from/to the device data register by 8 bit PIO. 112 * 113 * LOCKING: 114 * Inherited from caller. 115 */ 116 117static unsigned int ata_data_xfer_8bit(struct ata_device *dev, 118 unsigned char *buf, unsigned int buflen, int rw) 119{ 120 struct ata_port *ap = dev->link->ap; 121 122 if (rw == READ) 123 ioread8_rep(ap->ioaddr.data_addr, buf, buflen); 124 else 125 iowrite8_rep(ap->ioaddr.data_addr, buf, buflen); 126 127 return buflen; 128} 129 130/** 131 * pcmcia_8bit_drain_fifo - Stock FIFO drain logic for SFF controllers 132 * @qc: command 133 * 134 * Drain the FIFO and device of any stuck data following a command 135 * failing to complete. In some cases this is necessary before a 136 * reset will recover the device. 137 * 138 */ 139 140static void pcmcia_8bit_drain_fifo(struct ata_queued_cmd *qc) 141{ 142 int count; 143 struct ata_port *ap; 144 145 /* We only need to flush incoming data when a command was running */ 146 if (qc == NULL || qc->dma_dir == DMA_TO_DEVICE) 147 return; 148 149 ap = qc->ap; 150 151 /* Drain up to 64K of data before we give up this recovery method */ 152 for (count = 0; (ap->ops->sff_check_status(ap) & ATA_DRQ) 153 && count++ < 65536;) 154 ioread8(ap->ioaddr.data_addr); 155 156 if (count) 157 ata_port_printk(ap, KERN_WARNING, "drained %d bytes to clear DRQ.\n", 158 count); 159 160} 161 162static struct scsi_host_template pcmcia_sht = { 163 ATA_PIO_SHT(DRV_NAME), 164}; 165 166static struct ata_port_operations pcmcia_port_ops = { 167 .inherits = &ata_sff_port_ops, 168 .sff_data_xfer = ata_sff_data_xfer_noirq, 169 .cable_detect = ata_cable_40wire, 170 .set_mode = pcmcia_set_mode, 171}; 172 173static struct ata_port_operations pcmcia_8bit_port_ops = { 174 .inherits = &ata_sff_port_ops, 175 .sff_data_xfer = ata_data_xfer_8bit, 176 .cable_detect = ata_cable_40wire, 177 .set_mode = pcmcia_set_mode_8bit, 178 .drain_fifo = pcmcia_8bit_drain_fifo, 179}; 180 181 182struct pcmcia_config_check { 183 unsigned long ctl_base; 184 int skip_vcc; 185 int is_kme; 186}; 187 188static int pcmcia_check_one_config(struct pcmcia_device *pdev, 189 cistpl_cftable_entry_t *cfg, 190 cistpl_cftable_entry_t *dflt, 191 unsigned int vcc, 192 void *priv_data) 193{ 194 struct pcmcia_config_check *stk = priv_data; 195 196 /* Check for matching Vcc, unless we're desperate */ 197 if (!stk->skip_vcc) { 198 if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) { 199 if (vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000) 200 return -ENODEV; 201 } else if (dflt->vcc.present & (1 << CISTPL_POWER_VNOM)) { 202 if (vcc != dflt->vcc.param[CISTPL_POWER_VNOM] / 10000) 203 return -ENODEV; 204 } 205 } 206 207 if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM)) 208 pdev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000; 209 else if (dflt->vpp1.present & (1 << CISTPL_POWER_VNOM)) 210 pdev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM] / 10000; 211 212 if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) { 213 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io; 214 pdev->io.BasePort1 = io->win[0].base; 215 pdev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK; 216 if (!(io->flags & CISTPL_IO_16BIT)) 217 pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; 218 if (io->nwin == 2) { 219 pdev->io.NumPorts1 = 8; 220 pdev->io.BasePort2 = io->win[1].base; 221 pdev->io.NumPorts2 = (stk->is_kme) ? 2 : 1; 222 if (pcmcia_request_io(pdev, &pdev->io) != 0) 223 return -ENODEV; 224 stk->ctl_base = pdev->io.BasePort2; 225 } else if ((io->nwin == 1) && (io->win[0].len >= 16)) { 226 pdev->io.NumPorts1 = io->win[0].len; 227 pdev->io.NumPorts2 = 0; 228 if (pcmcia_request_io(pdev, &pdev->io) != 0) 229 return -ENODEV; 230 stk->ctl_base = pdev->io.BasePort1 + 0x0e; 231 } else 232 return -ENODEV; 233 /* If we've got this far, we're done */ 234 return 0; 235 } 236 return -ENODEV; 237} 238 239/** 240 * pcmcia_init_one - attach a PCMCIA interface 241 * @pdev: pcmcia device 242 * 243 * Register a PCMCIA IDE interface. Such interfaces are PIO 0 and 244 * shared IRQ. 245 */ 246 247static int pcmcia_init_one(struct pcmcia_device *pdev) 248{ 249 struct ata_host *host; 250 struct ata_port *ap; 251 struct ata_pcmcia_info *info; 252 struct pcmcia_config_check *stk = NULL; 253 int is_kme = 0, ret = -ENOMEM, p; 254 unsigned long io_base, ctl_base; 255 void __iomem *io_addr, *ctl_addr; 256 int n_ports = 1; 257 struct ata_port_operations *ops = &pcmcia_port_ops; 258 259 info = kzalloc(sizeof(*info), GFP_KERNEL); 260 if (info == NULL) 261 return -ENOMEM; 262 263 /* Glue stuff together. FIXME: We may be able to get rid of info with care */ 264 info->pdev = pdev; 265 pdev->priv = info; 266 267 /* Set up attributes in order to probe card and get resources */ 268 pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; 269 pdev->io.Attributes2 = IO_DATA_PATH_WIDTH_8; 270 pdev->io.IOAddrLines = 3; 271 pdev->conf.Attributes = CONF_ENABLE_IRQ; 272 pdev->conf.IntType = INT_MEMORY_AND_IO; 273 274 /* See if we have a manufacturer identifier. Use it to set is_kme for 275 vendor quirks */ 276 is_kme = ((pdev->manf_id == MANFID_KME) && 277 ((pdev->card_id == PRODID_KME_KXLC005_A) || 278 (pdev->card_id == PRODID_KME_KXLC005_B))); 279 280 /* Allocate resoure probing structures */ 281 282 stk = kzalloc(sizeof(*stk), GFP_KERNEL); 283 if (!stk) 284 goto out1; 285 stk->is_kme = is_kme; 286 stk->skip_vcc = io_base = ctl_base = 0; 287 288 if (pcmcia_loop_config(pdev, pcmcia_check_one_config, stk)) { 289 stk->skip_vcc = 1; 290 if (pcmcia_loop_config(pdev, pcmcia_check_one_config, stk)) 291 goto failed; /* No suitable config found */ 292 } 293 io_base = pdev->io.BasePort1; 294 ctl_base = stk->ctl_base; 295 if (!pdev->irq) 296 goto failed; 297 298 ret = pcmcia_request_configuration(pdev, &pdev->conf); 299 if (ret) 300 goto failed; 301 302 /* iomap */ 303 ret = -ENOMEM; 304 io_addr = devm_ioport_map(&pdev->dev, io_base, 8); 305 ctl_addr = devm_ioport_map(&pdev->dev, ctl_base, 1); 306 if (!io_addr || !ctl_addr) 307 goto failed; 308 309 /* Success. Disable the IRQ nIEN line, do quirks */ 310 iowrite8(0x02, ctl_addr); 311 if (is_kme) 312 iowrite8(0x81, ctl_addr + 0x01); 313 314 /* FIXME: Could be more ports at base + 0x10 but we only deal with 315 one right now */ 316 if (pdev->io.NumPorts1 >= 0x20) 317 n_ports = 2; 318 319 if (pdev->manf_id == 0x0097 && pdev->card_id == 0x1620) 320 ops = &pcmcia_8bit_port_ops; 321 /* 322 * Having done the PCMCIA plumbing the ATA side is relatively 323 * sane. 324 */ 325 ret = -ENOMEM; 326 host = ata_host_alloc(&pdev->dev, n_ports); 327 if (!host) 328 goto failed; 329 330 for (p = 0; p < n_ports; p++) { 331 ap = host->ports[p]; 332 333 ap->ops = ops; 334 ap->pio_mask = ATA_PIO0; /* ISA so PIO 0 cycles */ 335 ap->flags |= ATA_FLAG_SLAVE_POSS; 336 ap->ioaddr.cmd_addr = io_addr + 0x10 * p; 337 ap->ioaddr.altstatus_addr = ctl_addr + 0x10 * p; 338 ap->ioaddr.ctl_addr = ctl_addr + 0x10 * p; 339 ata_sff_std_ports(&ap->ioaddr); 340 341 ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", io_base, ctl_base); 342 } 343 344 /* activate */ 345 ret = ata_host_activate(host, pdev->irq, ata_sff_interrupt, 346 IRQF_SHARED, &pcmcia_sht); 347 if (ret) 348 goto failed; 349 350 info->ndev = 1; 351 kfree(stk); 352 return 0; 353 354failed: 355 kfree(stk); 356 info->ndev = 0; 357 pcmcia_disable_device(pdev); 358out1: 359 kfree(info); 360 return ret; 361} 362 363/** 364 * pcmcia_remove_one - unplug an pcmcia interface 365 * @pdev: pcmcia device 366 * 367 * A PCMCIA ATA device has been unplugged. Perform the needed 368 * cleanup. Also called on module unload for any active devices. 369 */ 370 371static void pcmcia_remove_one(struct pcmcia_device *pdev) 372{ 373 struct ata_pcmcia_info *info = pdev->priv; 374 struct device *dev = &pdev->dev; 375 376 if (info != NULL) { 377 /* If we have attached the device to the ATA layer, detach it */ 378 if (info->ndev) { 379 struct ata_host *host = dev_get_drvdata(dev); 380 ata_host_detach(host); 381 } 382 info->ndev = 0; 383 pdev->priv = NULL; 384 } 385 pcmcia_disable_device(pdev); 386 kfree(info); 387} 388 389static struct pcmcia_device_id pcmcia_devices[] = { 390 PCMCIA_DEVICE_FUNC_ID(4), 391 PCMCIA_DEVICE_MANF_CARD(0x0000, 0x0000), /* Corsair */ 392 PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */ 393 PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000), /* I-O Data CFA */ 394 PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001), /* Mitsubishi CFA */ 395 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704), 396 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904), 397 PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401), /* SanDisk CFA */ 398 PCMCIA_DEVICE_MANF_CARD(0x004f, 0x0000), /* Kingston */ 399 PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620), /* TI emulated */ 400 PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */ 401 PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d), 402 PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */ 403 PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */ 404 PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001), 405 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100), /* Viking CFA */ 406 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar, Viking CFA */ 407 PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0), 408 PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74), 409 PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9), 410 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591), 411 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728), 412 PCMCIA_DEVICE_PROD_ID12("CNF ", "CD-ROM", 0x46d7db81, 0x66536591), 413 PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591), 414 PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4), 415 PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde), 416 PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf), 417 PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591), 418 PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728), 419 PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e), 420 PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae), 421 PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178), 422 PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420), 423 PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178), 424 PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753), 425 PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 1GB", 0x2e6d1829, 0x55d5bffb), 426 PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 4GB", 0x2e6d1829, 0x531e7d10), 427 PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e), 428 PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2 ", 0x547e66dc, 0x8671043b), 429 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149), 430 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674), 431 PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2 ", 0xe37be2b5, 0x8671043b), 432 PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF300", 0x7ed2ad87, 0x7e9e78ee), 433 PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c), 434 PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79), 435 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591), 436 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728), 437 PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1), 438 PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883), 439 PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d), 440 PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6), 441 PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003), 442 PCMCIA_DEVICE_PROD_ID1("TRANSCEND 512M ", 0xd0909443), 443 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF45", 0x709b1bf1, 0xf68b6f32), 444 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1), 445 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2), 446 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8), 447 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF133", 0x709b1bf1, 0x7558f133), 448 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS8GCF133", 0x709b1bf1, 0xb2f89b47), 449 PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852), 450 PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918), 451 PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209), 452 PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e), 453 PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6), 454 PCMCIA_DEVICE_PROD_ID2("Flash Card", 0x5a362506), 455 PCMCIA_DEVICE_NULL, 456}; 457 458MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices); 459 460static struct pcmcia_driver pcmcia_driver = { 461 .owner = THIS_MODULE, 462 .drv = { 463 .name = DRV_NAME, 464 }, 465 .id_table = pcmcia_devices, 466 .probe = pcmcia_init_one, 467 .remove = pcmcia_remove_one, 468}; 469 470static int __init pcmcia_init(void) 471{ 472 return pcmcia_register_driver(&pcmcia_driver); 473} 474 475static void __exit pcmcia_exit(void) 476{ 477 pcmcia_unregister_driver(&pcmcia_driver); 478} 479 480MODULE_AUTHOR("Alan Cox"); 481MODULE_DESCRIPTION("low-level driver for PCMCIA ATA"); 482MODULE_LICENSE("GPL"); 483MODULE_VERSION(DRV_VERSION); 484 485module_init(pcmcia_init); 486module_exit(pcmcia_exit); 487