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