pata_pcmcia.c revision ac8b422838046ffc26be4874a3cbae0d313f4209
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.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 * pcmcia_set_mode - PCMCIA specific mode setup 49 * @link: link 50 * @r_failed_dev: Return pointer for failed device 51 * 52 * Perform the tuning and setup of the devices and timings, which 53 * for PCMCIA is the same as any other controller. We wrap it however 54 * as we need to spot hardware with incorrect or missing master/slave 55 * decode, which alas is embarrassingly common in the PC world 56 */ 57 58static int pcmcia_set_mode(struct ata_link *link, struct ata_device **r_failed_dev) 59{ 60 struct ata_device *master = &link->device[0]; 61 struct ata_device *slave = &link->device[1]; 62 63 if (!ata_dev_enabled(master) || !ata_dev_enabled(slave)) 64 return ata_do_set_mode(link, r_failed_dev); 65 66 if (memcmp(master->id + ATA_ID_FW_REV, slave->id + ATA_ID_FW_REV, 67 ATA_ID_FW_REV_LEN + ATA_ID_PROD_LEN) == 0) { 68 /* Suspicious match, but could be two cards from 69 the same vendor - check serial */ 70 if (memcmp(master->id + ATA_ID_SERNO, slave->id + ATA_ID_SERNO, 71 ATA_ID_SERNO_LEN) == 0 && master->id[ATA_ID_SERNO] >> 8) { 72 ata_dev_printk(slave, KERN_WARNING, "is a ghost device, ignoring.\n"); 73 ata_dev_disable(slave); 74 } 75 } 76 return ata_do_set_mode(link, r_failed_dev); 77} 78 79/** 80 * pcmcia_set_mode_8bit - PCMCIA specific mode setup 81 * @link: link 82 * @r_failed_dev: Return pointer for failed device 83 * 84 * For the simple emulated 8bit stuff the less we do the better. 85 */ 86 87static int pcmcia_set_mode_8bit(struct ata_link *link, 88 struct ata_device **r_failed_dev) 89{ 90 return 0; 91} 92 93/** 94 * ata_data_xfer_8bit - Transfer data by 8bit PIO 95 * @dev: device to target 96 * @buf: data buffer 97 * @buflen: buffer length 98 * @rw: read/write 99 * 100 * Transfer data from/to the device data register by 8 bit PIO. 101 * 102 * LOCKING: 103 * Inherited from caller. 104 */ 105 106static unsigned int ata_data_xfer_8bit(struct ata_device *dev, 107 unsigned char *buf, unsigned int buflen, int rw) 108{ 109 struct ata_port *ap = dev->link->ap; 110 111 if (rw == READ) 112 ioread8_rep(ap->ioaddr.data_addr, buf, buflen); 113 else 114 iowrite8_rep(ap->ioaddr.data_addr, buf, buflen); 115 116 return buflen; 117} 118 119/** 120 * pcmcia_8bit_drain_fifo - Stock FIFO drain logic for SFF controllers 121 * @qc: command 122 * 123 * Drain the FIFO and device of any stuck data following a command 124 * failing to complete. In some cases this is necessary before a 125 * reset will recover the device. 126 * 127 */ 128 129static void pcmcia_8bit_drain_fifo(struct ata_queued_cmd *qc) 130{ 131 int count; 132 struct ata_port *ap; 133 134 /* We only need to flush incoming data when a command was running */ 135 if (qc == NULL || qc->dma_dir == DMA_TO_DEVICE) 136 return; 137 138 ap = qc->ap; 139 140 /* Drain up to 64K of data before we give up this recovery method */ 141 for (count = 0; (ap->ops->sff_check_status(ap) & ATA_DRQ) 142 && count++ < 65536;) 143 ioread8(ap->ioaddr.data_addr); 144 145 if (count) 146 ata_port_printk(ap, KERN_WARNING, "drained %d bytes to clear DRQ.\n", 147 count); 148 149} 150 151static struct scsi_host_template pcmcia_sht = { 152 ATA_PIO_SHT(DRV_NAME), 153}; 154 155static struct ata_port_operations pcmcia_port_ops = { 156 .inherits = &ata_sff_port_ops, 157 .sff_data_xfer = ata_sff_data_xfer_noirq, 158 .cable_detect = ata_cable_40wire, 159 .set_mode = pcmcia_set_mode, 160}; 161 162static struct ata_port_operations pcmcia_8bit_port_ops = { 163 .inherits = &ata_sff_port_ops, 164 .sff_data_xfer = ata_data_xfer_8bit, 165 .cable_detect = ata_cable_40wire, 166 .set_mode = pcmcia_set_mode_8bit, 167 .sff_drain_fifo = pcmcia_8bit_drain_fifo, 168}; 169 170 171struct pcmcia_config_check { 172 unsigned long ctl_base; 173 int skip_vcc; 174 int is_kme; 175}; 176 177static int pcmcia_check_one_config(struct pcmcia_device *pdev, 178 cistpl_cftable_entry_t *cfg, 179 cistpl_cftable_entry_t *dflt, 180 unsigned int vcc, 181 void *priv_data) 182{ 183 struct pcmcia_config_check *stk = priv_data; 184 185 /* Check for matching Vcc, unless we're desperate */ 186 if (!stk->skip_vcc) { 187 if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) { 188 if (vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000) 189 return -ENODEV; 190 } else if (dflt->vcc.present & (1 << CISTPL_POWER_VNOM)) { 191 if (vcc != dflt->vcc.param[CISTPL_POWER_VNOM] / 10000) 192 return -ENODEV; 193 } 194 } 195 196 if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM)) 197 pdev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000; 198 else if (dflt->vpp1.present & (1 << CISTPL_POWER_VNOM)) 199 pdev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM] / 10000; 200 201 if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) { 202 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io; 203 pdev->io.BasePort1 = io->win[0].base; 204 pdev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK; 205 if (!(io->flags & CISTPL_IO_16BIT)) 206 pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; 207 if (io->nwin == 2) { 208 pdev->io.NumPorts1 = 8; 209 pdev->io.BasePort2 = io->win[1].base; 210 pdev->io.NumPorts2 = (stk->is_kme) ? 2 : 1; 211 if (pcmcia_request_io(pdev, &pdev->io) != 0) 212 return -ENODEV; 213 stk->ctl_base = pdev->io.BasePort2; 214 } else if ((io->nwin == 1) && (io->win[0].len >= 16)) { 215 pdev->io.NumPorts1 = io->win[0].len; 216 pdev->io.NumPorts2 = 0; 217 if (pcmcia_request_io(pdev, &pdev->io) != 0) 218 return -ENODEV; 219 stk->ctl_base = pdev->io.BasePort1 + 0x0e; 220 } else 221 return -ENODEV; 222 /* If we've got this far, we're done */ 223 return 0; 224 } 225 return -ENODEV; 226} 227 228/** 229 * pcmcia_init_one - attach a PCMCIA interface 230 * @pdev: pcmcia device 231 * 232 * Register a PCMCIA IDE interface. Such interfaces are PIO 0 and 233 * shared IRQ. 234 */ 235 236static int pcmcia_init_one(struct pcmcia_device *pdev) 237{ 238 struct ata_host *host; 239 struct ata_port *ap; 240 struct pcmcia_config_check *stk = NULL; 241 int is_kme = 0, ret = -ENOMEM, p; 242 unsigned long io_base, ctl_base; 243 void __iomem *io_addr, *ctl_addr; 244 int n_ports = 1; 245 struct ata_port_operations *ops = &pcmcia_port_ops; 246 247 /* Set up attributes in order to probe card and get resources */ 248 pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; 249 pdev->io.Attributes2 = IO_DATA_PATH_WIDTH_8; 250 pdev->io.IOAddrLines = 3; 251 pdev->conf.Attributes = CONF_ENABLE_IRQ; 252 pdev->conf.IntType = INT_MEMORY_AND_IO; 253 254 /* See if we have a manufacturer identifier. Use it to set is_kme for 255 vendor quirks */ 256 is_kme = ((pdev->manf_id == MANFID_KME) && 257 ((pdev->card_id == PRODID_KME_KXLC005_A) || 258 (pdev->card_id == PRODID_KME_KXLC005_B))); 259 260 /* Allocate resoure probing structures */ 261 262 stk = kzalloc(sizeof(*stk), GFP_KERNEL); 263 if (!stk) 264 goto out1; 265 stk->is_kme = is_kme; 266 stk->skip_vcc = io_base = ctl_base = 0; 267 268 if (pcmcia_loop_config(pdev, pcmcia_check_one_config, stk)) { 269 stk->skip_vcc = 1; 270 if (pcmcia_loop_config(pdev, pcmcia_check_one_config, stk)) 271 goto failed; /* No suitable config found */ 272 } 273 io_base = pdev->io.BasePort1; 274 ctl_base = stk->ctl_base; 275 if (!pdev->irq) 276 goto failed; 277 278 ret = pcmcia_request_configuration(pdev, &pdev->conf); 279 if (ret) 280 goto failed; 281 282 /* iomap */ 283 ret = -ENOMEM; 284 io_addr = devm_ioport_map(&pdev->dev, io_base, 8); 285 ctl_addr = devm_ioport_map(&pdev->dev, ctl_base, 1); 286 if (!io_addr || !ctl_addr) 287 goto failed; 288 289 /* Success. Disable the IRQ nIEN line, do quirks */ 290 iowrite8(0x02, ctl_addr); 291 if (is_kme) 292 iowrite8(0x81, ctl_addr + 0x01); 293 294 /* FIXME: Could be more ports at base + 0x10 but we only deal with 295 one right now */ 296 if (pdev->io.NumPorts1 >= 0x20) 297 n_ports = 2; 298 299 if (pdev->manf_id == 0x0097 && pdev->card_id == 0x1620) 300 ops = &pcmcia_8bit_port_ops; 301 /* 302 * Having done the PCMCIA plumbing the ATA side is relatively 303 * sane. 304 */ 305 ret = -ENOMEM; 306 host = ata_host_alloc(&pdev->dev, n_ports); 307 if (!host) 308 goto failed; 309 310 for (p = 0; p < n_ports; p++) { 311 ap = host->ports[p]; 312 313 ap->ops = ops; 314 ap->pio_mask = ATA_PIO0; /* ISA so PIO 0 cycles */ 315 ap->flags |= ATA_FLAG_SLAVE_POSS; 316 ap->ioaddr.cmd_addr = io_addr + 0x10 * p; 317 ap->ioaddr.altstatus_addr = ctl_addr + 0x10 * p; 318 ap->ioaddr.ctl_addr = ctl_addr + 0x10 * p; 319 ata_sff_std_ports(&ap->ioaddr); 320 321 ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", io_base, ctl_base); 322 } 323 324 /* activate */ 325 ret = ata_host_activate(host, pdev->irq, ata_sff_interrupt, 326 IRQF_SHARED, &pcmcia_sht); 327 if (ret) 328 goto failed; 329 330 pdev->priv = host; 331 kfree(stk); 332 return 0; 333 334failed: 335 kfree(stk); 336 pcmcia_disable_device(pdev); 337out1: 338 return ret; 339} 340 341/** 342 * pcmcia_remove_one - unplug an pcmcia interface 343 * @pdev: pcmcia device 344 * 345 * A PCMCIA ATA device has been unplugged. Perform the needed 346 * cleanup. Also called on module unload for any active devices. 347 */ 348 349static void pcmcia_remove_one(struct pcmcia_device *pdev) 350{ 351 struct ata_host *host = pdev->priv; 352 353 if (host) 354 ata_host_detach(host); 355 356 pcmcia_disable_device(pdev); 357} 358 359static struct pcmcia_device_id pcmcia_devices[] = { 360 PCMCIA_DEVICE_FUNC_ID(4), 361 PCMCIA_DEVICE_MANF_CARD(0x0000, 0x0000), /* Corsair */ 362 PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */ 363 PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000), /* I-O Data CFA */ 364 PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001), /* Mitsubishi CFA */ 365 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704), 366 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904), 367 PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401), /* SanDisk CFA */ 368 PCMCIA_DEVICE_MANF_CARD(0x004f, 0x0000), /* Kingston */ 369 PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620), /* TI emulated */ 370 PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */ 371 PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d), 372 PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */ 373 PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */ 374 PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001), 375 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100), /* Viking CFA */ 376 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar, Viking CFA */ 377 PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0), 378 PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74), 379 PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9), 380 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591), 381 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728), 382 PCMCIA_DEVICE_PROD_ID12("CNF ", "CD-ROM", 0x46d7db81, 0x66536591), 383 PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591), 384 PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4), 385 PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde), 386 PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf), 387 PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591), 388 PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728), 389 PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e), 390 PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae), 391 PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178), 392 PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420), 393 PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178), 394 PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753), 395 PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 1GB", 0x2e6d1829, 0x55d5bffb), 396 PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 4GB", 0x2e6d1829, 0x531e7d10), 397 PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e), 398 PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2 ", 0x547e66dc, 0x8671043b), 399 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149), 400 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674), 401 PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2 ", 0xe37be2b5, 0x8671043b), 402 PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF300", 0x7ed2ad87, 0x7e9e78ee), 403 PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c), 404 PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79), 405 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591), 406 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728), 407 PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1), 408 PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883), 409 PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d), 410 PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6), 411 PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003), 412 PCMCIA_DEVICE_PROD_ID1("TRANSCEND 512M ", 0xd0909443), 413 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF45", 0x709b1bf1, 0xf68b6f32), 414 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1), 415 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2), 416 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8), 417 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF133", 0x709b1bf1, 0x7558f133), 418 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS8GCF133", 0x709b1bf1, 0xb2f89b47), 419 PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852), 420 PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918), 421 PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209), 422 PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e), 423 PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6), 424 PCMCIA_DEVICE_PROD_ID2("Flash Card", 0x5a362506), 425 PCMCIA_DEVICE_NULL, 426}; 427 428MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices); 429 430static struct pcmcia_driver pcmcia_driver = { 431 .owner = THIS_MODULE, 432 .drv = { 433 .name = DRV_NAME, 434 }, 435 .id_table = pcmcia_devices, 436 .probe = pcmcia_init_one, 437 .remove = pcmcia_remove_one, 438}; 439 440static int __init pcmcia_init(void) 441{ 442 return pcmcia_register_driver(&pcmcia_driver); 443} 444 445static void __exit pcmcia_exit(void) 446{ 447 pcmcia_unregister_driver(&pcmcia_driver); 448} 449 450MODULE_AUTHOR("Alan Cox"); 451MODULE_DESCRIPTION("low-level driver for PCMCIA ATA"); 452MODULE_LICENSE("GPL"); 453MODULE_VERSION(DRV_VERSION); 454 455module_init(pcmcia_init); 456module_exit(pcmcia_exit); 457