1 /* 2 * pata_pcmcia.c - PCMCIA PATA controller driver. 3 * Copyright 2005-2006 Red Hat Inc <alan@redhat.com>, 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 "0.3.3" 46 47 /* 48 * Private data structure to glue stuff together 49 */ 50 51 struct 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 68 static 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 97 static 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 */ 115 116 static 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 static struct scsi_host_template pcmcia_sht = { 131 ATA_PIO_SHT(DRV_NAME), 132 }; 133 134 static struct ata_port_operations pcmcia_port_ops = { 135 .inherits = &ata_sff_port_ops, 136 .sff_data_xfer = ata_sff_data_xfer_noirq, 137 .cable_detect = ata_cable_40wire, 138 .set_mode = pcmcia_set_mode, 139 }; 140 141 static struct ata_port_operations pcmcia_8bit_port_ops = { 142 .inherits = &ata_sff_port_ops, 143 .sff_data_xfer = ata_data_xfer_8bit, 144 .cable_detect = ata_cable_40wire, 145 .set_mode = pcmcia_set_mode_8bit, 146 }; 147 148 #define CS_CHECK(fn, ret) \ 149 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) 150 151 /** 152 * pcmcia_init_one - attach a PCMCIA interface 153 * @pdev: pcmcia device 154 * 155 * Register a PCMCIA IDE interface. Such interfaces are PIO 0 and 156 * shared IRQ. 157 */ 158 159 static int pcmcia_init_one(struct pcmcia_device *pdev) 160 { 161 struct ata_host *host; 162 struct ata_port *ap; 163 struct ata_pcmcia_info *info; 164 tuple_t tuple; 165 struct { 166 unsigned short buf[128]; 167 cisparse_t parse; 168 config_info_t conf; 169 cistpl_cftable_entry_t dflt; 170 } *stk = NULL; 171 cistpl_cftable_entry_t *cfg; 172 int pass, last_ret = 0, last_fn = 0, is_kme = 0, ret = -ENOMEM, p; 173 unsigned long io_base, ctl_base; 174 void __iomem *io_addr, *ctl_addr; 175 int n_ports = 1; 176 177 struct ata_port_operations *ops = &pcmcia_port_ops; 178 179 info = kzalloc(sizeof(*info), GFP_KERNEL); 180 if (info == NULL) 181 return -ENOMEM; 182 183 /* Glue stuff together. FIXME: We may be able to get rid of info with care */ 184 info->pdev = pdev; 185 pdev->priv = info; 186 187 /* Set up attributes in order to probe card and get resources */ 188 pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; 189 pdev->io.Attributes2 = IO_DATA_PATH_WIDTH_8; 190 pdev->io.IOAddrLines = 3; 191 pdev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; 192 pdev->irq.IRQInfo1 = IRQ_LEVEL_ID; 193 pdev->conf.Attributes = CONF_ENABLE_IRQ; 194 pdev->conf.IntType = INT_MEMORY_AND_IO; 195 196 /* Allocate resoure probing structures */ 197 198 stk = kzalloc(sizeof(*stk), GFP_KERNEL); 199 if (!stk) 200 goto out1; 201 202 cfg = &stk->parse.cftable_entry; 203 204 /* Tuples we are walking */ 205 tuple.TupleData = (cisdata_t *)&stk->buf; 206 tuple.TupleOffset = 0; 207 tuple.TupleDataMax = 255; 208 tuple.Attributes = 0; 209 210 /* See if we have a manufacturer identifier. Use it to set is_kme for 211 vendor quirks */ 212 is_kme = ((pdev->manf_id == MANFID_KME) && 213 ((pdev->card_id == PRODID_KME_KXLC005_A) || 214 (pdev->card_id == PRODID_KME_KXLC005_B))); 215 216 /* Not sure if this is right... look up the current Vcc */ 217 CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(pdev, &stk->conf)); 218 /* link->conf.Vcc = stk->conf.Vcc; */ 219 220 pass = io_base = ctl_base = 0; 221 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; 222 tuple.Attributes = 0; 223 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(pdev, &tuple)); 224 225 /* Now munch the resources looking for a suitable set */ 226 while (1) { 227 if (pcmcia_get_tuple_data(pdev, &tuple) != 0) 228 goto next_entry; 229 if (pcmcia_parse_tuple(pdev, &tuple, &stk->parse) != 0) 230 goto next_entry; 231 /* Check for matching Vcc, unless we're desperate */ 232 if (!pass) { 233 if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) { 234 if (stk->conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000) 235 goto next_entry; 236 } else if (stk->dflt.vcc.present & (1 << CISTPL_POWER_VNOM)) { 237 if (stk->conf.Vcc != stk->dflt.vcc.param[CISTPL_POWER_VNOM] / 10000) 238 goto next_entry; 239 } 240 } 241 242 if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM)) 243 pdev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000; 244 else if (stk->dflt.vpp1.present & (1 << CISTPL_POWER_VNOM)) 245 pdev->conf.Vpp = stk->dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000; 246 247 if ((cfg->io.nwin > 0) || (stk->dflt.io.nwin > 0)) { 248 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &stk->dflt.io; 249 pdev->conf.ConfigIndex = cfg->index; 250 pdev->io.BasePort1 = io->win[0].base; 251 pdev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK; 252 if (!(io->flags & CISTPL_IO_16BIT)) 253 pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; 254 if (io->nwin == 2) { 255 pdev->io.NumPorts1 = 8; 256 pdev->io.BasePort2 = io->win[1].base; 257 pdev->io.NumPorts2 = (is_kme) ? 2 : 1; 258 if (pcmcia_request_io(pdev, &pdev->io) != 0) 259 goto next_entry; 260 io_base = pdev->io.BasePort1; 261 ctl_base = pdev->io.BasePort2; 262 } else if ((io->nwin == 1) && (io->win[0].len >= 16)) { 263 pdev->io.NumPorts1 = io->win[0].len; 264 pdev->io.NumPorts2 = 0; 265 if (pcmcia_request_io(pdev, &pdev->io) != 0) 266 goto next_entry; 267 io_base = pdev->io.BasePort1; 268 ctl_base = pdev->io.BasePort1 + 0x0e; 269 } else 270 goto next_entry; 271 /* If we've got this far, we're done */ 272 break; 273 } 274 next_entry: 275 if (cfg->flags & CISTPL_CFTABLE_DEFAULT) 276 memcpy(&stk->dflt, cfg, sizeof(stk->dflt)); 277 if (pass) { 278 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(pdev, &tuple)); 279 } else if (pcmcia_get_next_tuple(pdev, &tuple) != 0) { 280 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(pdev, &tuple)); 281 memset(&stk->dflt, 0, sizeof(stk->dflt)); 282 pass++; 283 } 284 } 285 286 CS_CHECK(RequestIRQ, pcmcia_request_irq(pdev, &pdev->irq)); 287 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(pdev, &pdev->conf)); 288 289 /* iomap */ 290 ret = -ENOMEM; 291 io_addr = devm_ioport_map(&pdev->dev, io_base, 8); 292 ctl_addr = devm_ioport_map(&pdev->dev, ctl_base, 1); 293 if (!io_addr || !ctl_addr) 294 goto failed; 295 296 /* Success. Disable the IRQ nIEN line, do quirks */ 297 iowrite8(0x02, ctl_addr); 298 if (is_kme) 299 iowrite8(0x81, ctl_addr + 0x01); 300 301 /* FIXME: Could be more ports at base + 0x10 but we only deal with 302 one right now */ 303 if (pdev->io.NumPorts1 >= 0x20) 304 n_ports = 2; 305 306 if (pdev->manf_id == 0x0097 && pdev->card_id == 0x1620) 307 ops = &pcmcia_8bit_port_ops; 308 /* 309 * Having done the PCMCIA plumbing the ATA side is relatively 310 * sane. 311 */ 312 ret = -ENOMEM; 313 host = ata_host_alloc(&pdev->dev, n_ports); 314 if (!host) 315 goto failed; 316 317 for (p = 0; p < n_ports; p++) { 318 ap = host->ports[p]; 319 320 ap->ops = ops; 321 ap->pio_mask = 1; /* ISA so PIO 0 cycles */ 322 ap->flags |= ATA_FLAG_SLAVE_POSS; 323 ap->ioaddr.cmd_addr = io_addr + 0x10 * p; 324 ap->ioaddr.altstatus_addr = ctl_addr + 0x10 * p; 325 ap->ioaddr.ctl_addr = ctl_addr + 0x10 * p; 326 ata_sff_std_ports(&ap->ioaddr); 327 328 ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", io_base, ctl_base); 329 } 330 331 /* activate */ 332 ret = ata_host_activate(host, pdev->irq.AssignedIRQ, ata_sff_interrupt, 333 IRQF_SHARED, &pcmcia_sht); 334 if (ret) 335 goto failed; 336 337 info->ndev = 1; 338 kfree(stk); 339 return 0; 340 341 cs_failed: 342 cs_error(pdev, last_fn, last_ret); 343 failed: 344 kfree(stk); 345 info->ndev = 0; 346 pcmcia_disable_device(pdev); 347 out1: 348 kfree(info); 349 return ret; 350 } 351 352 /** 353 * pcmcia_remove_one - unplug an pcmcia interface 354 * @pdev: pcmcia device 355 * 356 * A PCMCIA ATA device has been unplugged. Perform the needed 357 * cleanup. Also called on module unload for any active devices. 358 */ 359 360 static void pcmcia_remove_one(struct pcmcia_device *pdev) 361 { 362 struct ata_pcmcia_info *info = pdev->priv; 363 struct device *dev = &pdev->dev; 364 365 if (info != NULL) { 366 /* If we have attached the device to the ATA layer, detach it */ 367 if (info->ndev) { 368 struct ata_host *host = dev_get_drvdata(dev); 369 ata_host_detach(host); 370 } 371 info->ndev = 0; 372 pdev->priv = NULL; 373 } 374 pcmcia_disable_device(pdev); 375 kfree(info); 376 } 377 378 static struct pcmcia_device_id pcmcia_devices[] = { 379 PCMCIA_DEVICE_FUNC_ID(4), 380 PCMCIA_DEVICE_MANF_CARD(0x0000, 0x0000), /* Corsair */ 381 PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */ 382 PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000), /* I-O Data CFA */ 383 PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001), /* Mitsubishi CFA */ 384 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704), 385 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904), 386 PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401), /* SanDisk CFA */ 387 PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620), /* TI emulated */ 388 PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */ 389 PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d), 390 PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */ 391 PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */ 392 PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001), 393 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100), /* Viking CFA */ 394 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar, Viking CFA */ 395 PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0), 396 PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74), 397 PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9), 398 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591), 399 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728), 400 PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591), 401 PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4), 402 PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde), 403 PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf), 404 PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591), 405 PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728), 406 PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e), 407 PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420), 408 PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae), 409 PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178), 410 PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178), 411 PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753), 412 PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e), 413 PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2 ", 0x547e66dc, 0x8671043b), 414 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149), 415 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674), 416 PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2 ", 0xe37be2b5, 0x8671043b), 417 PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c), 418 PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79), 419 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591), 420 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728), 421 PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1), 422 PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883), 423 PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d), 424 PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6), 425 PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003), 426 PCMCIA_DEVICE_PROD_ID1("TRANSCEND 512M ", 0xd0909443), 427 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1), 428 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2), 429 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8), 430 PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852), 431 PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918), 432 PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209), 433 PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e), 434 PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6), 435 PCMCIA_DEVICE_NULL, 436 }; 437 438 MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices); 439 440 static struct pcmcia_driver pcmcia_driver = { 441 .owner = THIS_MODULE, 442 .drv = { 443 .name = DRV_NAME, 444 }, 445 .id_table = pcmcia_devices, 446 .probe = pcmcia_init_one, 447 .remove = pcmcia_remove_one, 448 }; 449 450 static int __init pcmcia_init(void) 451 { 452 return pcmcia_register_driver(&pcmcia_driver); 453 } 454 455 static void __exit pcmcia_exit(void) 456 { 457 pcmcia_unregister_driver(&pcmcia_driver); 458 } 459 460 MODULE_AUTHOR("Alan Cox"); 461 MODULE_DESCRIPTION("low-level driver for PCMCIA ATA"); 462 MODULE_LICENSE("GPL"); 463 MODULE_VERSION(DRV_VERSION); 464 465 module_init(pcmcia_init); 466 module_exit(pcmcia_exit); 467