pata_pcmcia.c revision 444486a5f9d2737b50e53dc140292899b9497808
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 <scsi/scsi_host.h> 33#include <linux/ata.h> 34#include <linux/libata.h> 35 36#include <pcmcia/cs_types.h> 37#include <pcmcia/cs.h> 38#include <pcmcia/cistpl.h> 39#include <pcmcia/ds.h> 40#include <pcmcia/cisreg.h> 41#include <pcmcia/ciscode.h> 42 43 44#define DRV_NAME "pata_pcmcia" 45#define DRV_VERSION "0.3.5" 46 47/* 48 * Private data structure to glue stuff together 49 */ 50 51struct ata_pcmcia_info { 52 struct pcmcia_device *pdev; 53 int ndev; 54 dev_node_t node; 55}; 56 57/** 58 * pcmcia_set_mode - PCMCIA specific mode setup 59 * @link: link 60 * @r_failed_dev: Return pointer for failed device 61 * 62 * Perform the tuning and setup of the devices and timings, which 63 * for PCMCIA is the same as any other controller. We wrap it however 64 * as we need to spot hardware with incorrect or missing master/slave 65 * decode, which alas is embarrassingly common in the PC world 66 */ 67 68static int pcmcia_set_mode(struct ata_link *link, struct ata_device **r_failed_dev) 69{ 70 struct ata_device *master = &link->device[0]; 71 struct ata_device *slave = &link->device[1]; 72 73 if (!ata_dev_enabled(master) || !ata_dev_enabled(slave)) 74 return ata_do_set_mode(link, r_failed_dev); 75 76 if (memcmp(master->id + ATA_ID_FW_REV, slave->id + ATA_ID_FW_REV, 77 ATA_ID_FW_REV_LEN + ATA_ID_PROD_LEN) == 0) { 78 /* Suspicious match, but could be two cards from 79 the same vendor - check serial */ 80 if (memcmp(master->id + ATA_ID_SERNO, slave->id + ATA_ID_SERNO, 81 ATA_ID_SERNO_LEN) == 0 && master->id[ATA_ID_SERNO] >> 8) { 82 ata_dev_printk(slave, KERN_WARNING, "is a ghost device, ignoring.\n"); 83 ata_dev_disable(slave); 84 } 85 } 86 return ata_do_set_mode(link, r_failed_dev); 87} 88 89/** 90 * pcmcia_set_mode_8bit - PCMCIA specific mode setup 91 * @link: link 92 * @r_failed_dev: Return pointer for failed device 93 * 94 * For the simple emulated 8bit stuff the less we do the better. 95 */ 96 97static int pcmcia_set_mode_8bit(struct ata_link *link, 98 struct ata_device **r_failed_dev) 99{ 100 return 0; 101} 102 103/** 104 * ata_data_xfer_8bit - Transfer data by 8bit PIO 105 * @dev: device to target 106 * @buf: data buffer 107 * @buflen: buffer length 108 * @rw: read/write 109 * 110 * Transfer data from/to the device data register by 8 bit PIO. 111 * 112 * LOCKING: 113 * Inherited from caller. 114 */ 115 116static unsigned int ata_data_xfer_8bit(struct ata_device *dev, 117 unsigned char *buf, unsigned int buflen, int rw) 118{ 119 struct ata_port *ap = dev->link->ap; 120 121 if (rw == READ) 122 ioread8_rep(ap->ioaddr.data_addr, buf, buflen); 123 else 124 iowrite8_rep(ap->ioaddr.data_addr, buf, buflen); 125 126 return buflen; 127} 128 129/** 130 * pcmcia_8bit_drain_fifo - Stock FIFO drain logic for SFF controllers 131 * @qc: command 132 * 133 * Drain the FIFO and device of any stuck data following a command 134 * failing to complete. In some cases this is neccessary before a 135 * reset will recover the device. 136 * 137 */ 138 139void pcmcia_8bit_drain_fifo(struct ata_queued_cmd *qc) 140{ 141 int count; 142 struct ata_port *ap; 143 144 /* We only need to flush incoming data when a command was running */ 145 if (qc == NULL || qc->dma_dir == DMA_TO_DEVICE) 146 return; 147 148 ap = qc->ap; 149 150 /* Drain up to 64K of data before we give up this recovery method */ 151 for (count = 0; (ap->ops->sff_check_status(ap) & ATA_DRQ) 152 && count++ < 65536;) 153 ioread8(ap->ioaddr.data_addr); 154 155 if (count) 156 ata_port_printk(ap, KERN_WARNING, "drained %d bytes to clear DRQ.\n", 157 count); 158 159} 160 161static struct scsi_host_template pcmcia_sht = { 162 ATA_PIO_SHT(DRV_NAME), 163}; 164 165static struct ata_port_operations pcmcia_port_ops = { 166 .inherits = &ata_sff_port_ops, 167 .sff_data_xfer = ata_sff_data_xfer_noirq, 168 .cable_detect = ata_cable_40wire, 169 .set_mode = pcmcia_set_mode, 170}; 171 172static struct ata_port_operations pcmcia_8bit_port_ops = { 173 .inherits = &ata_sff_port_ops, 174 .sff_data_xfer = ata_data_xfer_8bit, 175 .cable_detect = ata_cable_40wire, 176 .set_mode = pcmcia_set_mode_8bit, 177 .drain_fifo = pcmcia_8bit_drain_fifo, 178}; 179 180 181struct pcmcia_config_check { 182 unsigned long ctl_base; 183 int skip_vcc; 184 int is_kme; 185}; 186 187static int pcmcia_check_one_config(struct pcmcia_device *pdev, 188 cistpl_cftable_entry_t *cfg, 189 cistpl_cftable_entry_t *dflt, 190 unsigned int vcc, 191 void *priv_data) 192{ 193 struct pcmcia_config_check *stk = priv_data; 194 195 /* Check for matching Vcc, unless we're desperate */ 196 if (!stk->skip_vcc) { 197 if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) { 198 if (vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000) 199 return -ENODEV; 200 } else if (dflt->vcc.present & (1 << CISTPL_POWER_VNOM)) { 201 if (vcc != dflt->vcc.param[CISTPL_POWER_VNOM] / 10000) 202 return -ENODEV; 203 } 204 } 205 206 if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM)) 207 pdev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000; 208 else if (dflt->vpp1.present & (1 << CISTPL_POWER_VNOM)) 209 pdev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM] / 10000; 210 211 if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) { 212 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io; 213 pdev->io.BasePort1 = io->win[0].base; 214 pdev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK; 215 if (!(io->flags & CISTPL_IO_16BIT)) 216 pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; 217 if (io->nwin == 2) { 218 pdev->io.NumPorts1 = 8; 219 pdev->io.BasePort2 = io->win[1].base; 220 pdev->io.NumPorts2 = (stk->is_kme) ? 2 : 1; 221 if (pcmcia_request_io(pdev, &pdev->io) != 0) 222 return -ENODEV; 223 stk->ctl_base = pdev->io.BasePort2; 224 } else if ((io->nwin == 1) && (io->win[0].len >= 16)) { 225 pdev->io.NumPorts1 = io->win[0].len; 226 pdev->io.NumPorts2 = 0; 227 if (pcmcia_request_io(pdev, &pdev->io) != 0) 228 return -ENODEV; 229 stk->ctl_base = pdev->io.BasePort1 + 0x0e; 230 } else 231 return -ENODEV; 232 /* If we've got this far, we're done */ 233 return 0; 234 } 235 return -ENODEV; 236} 237 238/** 239 * pcmcia_init_one - attach a PCMCIA interface 240 * @pdev: pcmcia device 241 * 242 * Register a PCMCIA IDE interface. Such interfaces are PIO 0 and 243 * shared IRQ. 244 */ 245 246static int pcmcia_init_one(struct pcmcia_device *pdev) 247{ 248 struct ata_host *host; 249 struct ata_port *ap; 250 struct ata_pcmcia_info *info; 251 struct pcmcia_config_check *stk = NULL; 252 int is_kme = 0, ret = -ENOMEM, p; 253 unsigned long io_base, ctl_base; 254 void __iomem *io_addr, *ctl_addr; 255 int n_ports = 1; 256 struct ata_port_operations *ops = &pcmcia_port_ops; 257 258 info = kzalloc(sizeof(*info), GFP_KERNEL); 259 if (info == NULL) 260 return -ENOMEM; 261 262 /* Glue stuff together. FIXME: We may be able to get rid of info with care */ 263 info->pdev = pdev; 264 pdev->priv = info; 265 266 /* Set up attributes in order to probe card and get resources */ 267 pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; 268 pdev->io.Attributes2 = IO_DATA_PATH_WIDTH_8; 269 pdev->io.IOAddrLines = 3; 270 pdev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; 271 pdev->irq.IRQInfo1 = IRQ_LEVEL_ID; 272 pdev->conf.Attributes = CONF_ENABLE_IRQ; 273 pdev->conf.IntType = INT_MEMORY_AND_IO; 274 275 /* See if we have a manufacturer identifier. Use it to set is_kme for 276 vendor quirks */ 277 is_kme = ((pdev->manf_id == MANFID_KME) && 278 ((pdev->card_id == PRODID_KME_KXLC005_A) || 279 (pdev->card_id == PRODID_KME_KXLC005_B))); 280 281 /* Allocate resoure probing structures */ 282 283 stk = kzalloc(sizeof(*stk), GFP_KERNEL); 284 if (!stk) 285 goto out1; 286 stk->is_kme = is_kme; 287 stk->skip_vcc = io_base = ctl_base = 0; 288 289 if (pcmcia_loop_config(pdev, pcmcia_check_one_config, stk)) { 290 stk->skip_vcc = 1; 291 if (pcmcia_loop_config(pdev, pcmcia_check_one_config, stk)) 292 goto failed; /* No suitable config found */ 293 } 294 io_base = pdev->io.BasePort1; 295 ctl_base = stk->ctl_base; 296 ret = pcmcia_request_irq(pdev, &pdev->irq); 297 if (ret) 298 goto failed; 299 300 ret = pcmcia_request_configuration(pdev, &pdev->conf); 301 if (ret) 302 goto failed; 303 304 /* iomap */ 305 ret = -ENOMEM; 306 io_addr = devm_ioport_map(&pdev->dev, io_base, 8); 307 ctl_addr = devm_ioport_map(&pdev->dev, ctl_base, 1); 308 if (!io_addr || !ctl_addr) 309 goto failed; 310 311 /* Success. Disable the IRQ nIEN line, do quirks */ 312 iowrite8(0x02, ctl_addr); 313 if (is_kme) 314 iowrite8(0x81, ctl_addr + 0x01); 315 316 /* FIXME: Could be more ports at base + 0x10 but we only deal with 317 one right now */ 318 if (pdev->io.NumPorts1 >= 0x20) 319 n_ports = 2; 320 321 if (pdev->manf_id == 0x0097 && pdev->card_id == 0x1620) 322 ops = &pcmcia_8bit_port_ops; 323 /* 324 * Having done the PCMCIA plumbing the ATA side is relatively 325 * sane. 326 */ 327 ret = -ENOMEM; 328 host = ata_host_alloc(&pdev->dev, n_ports); 329 if (!host) 330 goto failed; 331 332 for (p = 0; p < n_ports; p++) { 333 ap = host->ports[p]; 334 335 ap->ops = ops; 336 ap->pio_mask = ATA_PIO0; /* ISA so PIO 0 cycles */ 337 ap->flags |= ATA_FLAG_SLAVE_POSS; 338 ap->ioaddr.cmd_addr = io_addr + 0x10 * p; 339 ap->ioaddr.altstatus_addr = ctl_addr + 0x10 * p; 340 ap->ioaddr.ctl_addr = ctl_addr + 0x10 * p; 341 ata_sff_std_ports(&ap->ioaddr); 342 343 ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", io_base, ctl_base); 344 } 345 346 /* activate */ 347 ret = ata_host_activate(host, pdev->irq.AssignedIRQ, ata_sff_interrupt, 348 IRQF_SHARED, &pcmcia_sht); 349 if (ret) 350 goto failed; 351 352 info->ndev = 1; 353 kfree(stk); 354 return 0; 355 356failed: 357 kfree(stk); 358 info->ndev = 0; 359 pcmcia_disable_device(pdev); 360out1: 361 kfree(info); 362 return ret; 363} 364 365/** 366 * pcmcia_remove_one - unplug an pcmcia interface 367 * @pdev: pcmcia device 368 * 369 * A PCMCIA ATA device has been unplugged. Perform the needed 370 * cleanup. Also called on module unload for any active devices. 371 */ 372 373static void pcmcia_remove_one(struct pcmcia_device *pdev) 374{ 375 struct ata_pcmcia_info *info = pdev->priv; 376 struct device *dev = &pdev->dev; 377 378 if (info != NULL) { 379 /* If we have attached the device to the ATA layer, detach it */ 380 if (info->ndev) { 381 struct ata_host *host = dev_get_drvdata(dev); 382 ata_host_detach(host); 383 } 384 info->ndev = 0; 385 pdev->priv = NULL; 386 } 387 pcmcia_disable_device(pdev); 388 kfree(info); 389} 390 391static struct pcmcia_device_id pcmcia_devices[] = { 392 PCMCIA_DEVICE_FUNC_ID(4), 393 PCMCIA_DEVICE_MANF_CARD(0x0000, 0x0000), /* Corsair */ 394 PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */ 395 PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000), /* I-O Data CFA */ 396 PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001), /* Mitsubishi CFA */ 397 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704), 398 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904), 399 PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401), /* SanDisk CFA */ 400 PCMCIA_DEVICE_MANF_CARD(0x004f, 0x0000), /* Kingston */ 401 PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620), /* TI emulated */ 402 PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */ 403 PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d), 404 PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */ 405 PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */ 406 PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001), 407 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100), /* Viking CFA */ 408 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar, Viking CFA */ 409 PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0), 410 PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74), 411 PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9), 412 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591), 413 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728), 414 PCMCIA_DEVICE_PROD_ID12("CNF ", "CD-ROM", 0x46d7db81, 0x66536591), 415 PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591), 416 PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4), 417 PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde), 418 PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf), 419 PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591), 420 PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728), 421 PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e), 422 PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae), 423 PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178), 424 PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420), 425 PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178), 426 PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753), 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("WIT", "IDE16", 0x244e5994, 0x3e232852), 448 PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918), 449 PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209), 450 PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e), 451 PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6), 452 PCMCIA_DEVICE_PROD_ID2("Flash Card", 0x5a362506), 453 PCMCIA_DEVICE_NULL, 454}; 455 456MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices); 457 458static struct pcmcia_driver pcmcia_driver = { 459 .owner = THIS_MODULE, 460 .drv = { 461 .name = DRV_NAME, 462 }, 463 .id_table = pcmcia_devices, 464 .probe = pcmcia_init_one, 465 .remove = pcmcia_remove_one, 466}; 467 468static int __init pcmcia_init(void) 469{ 470 return pcmcia_register_driver(&pcmcia_driver); 471} 472 473static void __exit pcmcia_exit(void) 474{ 475 pcmcia_unregister_driver(&pcmcia_driver); 476} 477 478MODULE_AUTHOR("Alan Cox"); 479MODULE_DESCRIPTION("low-level driver for PCMCIA ATA"); 480MODULE_LICENSE("GPL"); 481MODULE_VERSION(DRV_VERSION); 482 483module_init(pcmcia_init); 484module_exit(pcmcia_exit); 485