pata_pcmcia.c revision 4fca377f7488095ab04035e2bfe5c59873c22382
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/cistpl.h> 38#include <pcmcia/ds.h> 39#include <pcmcia/cisreg.h> 40#include <pcmcia/ciscode.h> 41 42 43#define DRV_NAME "pata_pcmcia" 44#define DRV_VERSION "0.3.5" 45 46/** 47 * pcmcia_set_mode - PCMCIA specific mode setup 48 * @link: link 49 * @r_failed_dev: Return pointer for failed device 50 * 51 * Perform the tuning and setup of the devices and timings, which 52 * for PCMCIA is the same as any other controller. We wrap it however 53 * as we need to spot hardware with incorrect or missing master/slave 54 * decode, which alas is embarrassingly common in the PC world 55 */ 56 57static int pcmcia_set_mode(struct ata_link *link, struct ata_device **r_failed_dev) 58{ 59 struct ata_device *master = &link->device[0]; 60 struct ata_device *slave = &link->device[1]; 61 62 if (!ata_dev_enabled(master) || !ata_dev_enabled(slave)) 63 return ata_do_set_mode(link, r_failed_dev); 64 65 if (memcmp(master->id + ATA_ID_FW_REV, slave->id + ATA_ID_FW_REV, 66 ATA_ID_FW_REV_LEN + ATA_ID_PROD_LEN) == 0) { 67 /* Suspicious match, but could be two cards from 68 the same vendor - check serial */ 69 if (memcmp(master->id + ATA_ID_SERNO, slave->id + ATA_ID_SERNO, 70 ATA_ID_SERNO_LEN) == 0 && master->id[ATA_ID_SERNO] >> 8) { 71 ata_dev_printk(slave, KERN_WARNING, "is a ghost device, ignoring.\n"); 72 ata_dev_disable(slave); 73 } 74 } 75 return ata_do_set_mode(link, r_failed_dev); 76} 77 78/** 79 * pcmcia_set_mode_8bit - PCMCIA specific mode setup 80 * @link: link 81 * @r_failed_dev: Return pointer for failed device 82 * 83 * For the simple emulated 8bit stuff the less we do the better. 84 */ 85 86static int pcmcia_set_mode_8bit(struct ata_link *link, 87 struct ata_device **r_failed_dev) 88{ 89 return 0; 90} 91 92/** 93 * ata_data_xfer_8bit - Transfer data by 8bit PIO 94 * @dev: device to target 95 * @buf: data buffer 96 * @buflen: buffer length 97 * @rw: read/write 98 * 99 * Transfer data from/to the device data register by 8 bit PIO. 100 * 101 * LOCKING: 102 * Inherited from caller. 103 */ 104 105static unsigned int ata_data_xfer_8bit(struct ata_device *dev, 106 unsigned char *buf, unsigned int buflen, int rw) 107{ 108 struct ata_port *ap = dev->link->ap; 109 110 if (rw == READ) 111 ioread8_rep(ap->ioaddr.data_addr, buf, buflen); 112 else 113 iowrite8_rep(ap->ioaddr.data_addr, buf, buflen); 114 115 return buflen; 116} 117 118/** 119 * pcmcia_8bit_drain_fifo - Stock FIFO drain logic for SFF controllers 120 * @qc: command 121 * 122 * Drain the FIFO and device of any stuck data following a command 123 * failing to complete. In some cases this is necessary before a 124 * reset will recover the device. 125 * 126 */ 127 128static void pcmcia_8bit_drain_fifo(struct ata_queued_cmd *qc) 129{ 130 int count; 131 struct ata_port *ap; 132 133 /* We only need to flush incoming data when a command was running */ 134 if (qc == NULL || qc->dma_dir == DMA_TO_DEVICE) 135 return; 136 137 ap = qc->ap; 138 139 /* Drain up to 64K of data before we give up this recovery method */ 140 for (count = 0; (ap->ops->sff_check_status(ap) & ATA_DRQ) 141 && count++ < 65536;) 142 ioread8(ap->ioaddr.data_addr); 143 144 if (count) 145 ata_port_printk(ap, KERN_WARNING, "drained %d bytes to clear DRQ.\n", 146 count); 147 148} 149 150static struct scsi_host_template pcmcia_sht = { 151 ATA_PIO_SHT(DRV_NAME), 152}; 153 154static struct ata_port_operations pcmcia_port_ops = { 155 .inherits = &ata_sff_port_ops, 156 .sff_data_xfer = ata_sff_data_xfer_noirq, 157 .cable_detect = ata_cable_40wire, 158 .set_mode = pcmcia_set_mode, 159}; 160 161static struct ata_port_operations pcmcia_8bit_port_ops = { 162 .inherits = &ata_sff_port_ops, 163 .sff_data_xfer = ata_data_xfer_8bit, 164 .cable_detect = ata_cable_40wire, 165 .set_mode = pcmcia_set_mode_8bit, 166 .sff_drain_fifo = pcmcia_8bit_drain_fifo, 167}; 168 169 170static int pcmcia_check_one_config(struct pcmcia_device *pdev, void *priv_data) 171{ 172 int *is_kme = priv_data; 173 174 if (!(pdev->resource[0]->flags & IO_DATA_PATH_WIDTH_8)) { 175 pdev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; 176 pdev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; 177 } 178 pdev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH; 179 pdev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8; 180 181 if (pdev->resource[1]->end) { 182 pdev->resource[0]->end = 8; 183 pdev->resource[1]->end = (*is_kme) ? 2 : 1; 184 } else { 185 if (pdev->resource[0]->end < 16) 186 return -ENODEV; 187 } 188 189 return pcmcia_request_io(pdev); 190} 191 192/** 193 * pcmcia_init_one - attach a PCMCIA interface 194 * @pdev: pcmcia device 195 * 196 * Register a PCMCIA IDE interface. Such interfaces are PIO 0 and 197 * shared IRQ. 198 */ 199 200static int pcmcia_init_one(struct pcmcia_device *pdev) 201{ 202 struct ata_host *host; 203 struct ata_port *ap; 204 int is_kme = 0, ret = -ENOMEM, p; 205 unsigned long io_base, ctl_base; 206 void __iomem *io_addr, *ctl_addr; 207 int n_ports = 1; 208 struct ata_port_operations *ops = &pcmcia_port_ops; 209 210 /* Set up attributes in order to probe card and get resources */ 211 pdev->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO | 212 CONF_AUTO_SET_VPP | CONF_AUTO_CHECK_VCC; 213 214 /* See if we have a manufacturer identifier. Use it to set is_kme for 215 vendor quirks */ 216 is_kme = ((pdev->manf_id == MANFID_KME) && 217 ((pdev->card_id == PRODID_KME_KXLC005_A) || 218 (pdev->card_id == PRODID_KME_KXLC005_B))); 219 220 if (pcmcia_loop_config(pdev, pcmcia_check_one_config, &is_kme)) { 221 pdev->config_flags &= ~CONF_AUTO_CHECK_VCC; 222 if (pcmcia_loop_config(pdev, pcmcia_check_one_config, &is_kme)) 223 goto failed; /* No suitable config found */ 224 } 225 io_base = pdev->resource[0]->start; 226 if (pdev->resource[1]->end) 227 ctl_base = pdev->resource[1]->start; 228 else 229 ctl_base = pdev->resource[0]->start + 0x0e; 230 231 if (!pdev->irq) 232 goto failed; 233 234 ret = pcmcia_enable_device(pdev); 235 if (ret) 236 goto failed; 237 238 /* iomap */ 239 ret = -ENOMEM; 240 io_addr = devm_ioport_map(&pdev->dev, io_base, 8); 241 ctl_addr = devm_ioport_map(&pdev->dev, ctl_base, 1); 242 if (!io_addr || !ctl_addr) 243 goto failed; 244 245 /* Success. Disable the IRQ nIEN line, do quirks */ 246 iowrite8(0x02, ctl_addr); 247 if (is_kme) 248 iowrite8(0x81, ctl_addr + 0x01); 249 250 /* FIXME: Could be more ports at base + 0x10 but we only deal with 251 one right now */ 252 if (resource_size(pdev->resource[0]) >= 0x20) 253 n_ports = 2; 254 255 if (pdev->manf_id == 0x0097 && pdev->card_id == 0x1620) 256 ops = &pcmcia_8bit_port_ops; 257 /* 258 * Having done the PCMCIA plumbing the ATA side is relatively 259 * sane. 260 */ 261 ret = -ENOMEM; 262 host = ata_host_alloc(&pdev->dev, n_ports); 263 if (!host) 264 goto failed; 265 266 for (p = 0; p < n_ports; p++) { 267 ap = host->ports[p]; 268 269 ap->ops = ops; 270 ap->pio_mask = ATA_PIO0; /* ISA so PIO 0 cycles */ 271 ap->flags |= ATA_FLAG_SLAVE_POSS; 272 ap->ioaddr.cmd_addr = io_addr + 0x10 * p; 273 ap->ioaddr.altstatus_addr = ctl_addr + 0x10 * p; 274 ap->ioaddr.ctl_addr = ctl_addr + 0x10 * p; 275 ata_sff_std_ports(&ap->ioaddr); 276 277 ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", io_base, ctl_base); 278 } 279 280 /* activate */ 281 ret = ata_host_activate(host, pdev->irq, ata_sff_interrupt, 282 IRQF_SHARED, &pcmcia_sht); 283 if (ret) 284 goto failed; 285 286 pdev->priv = host; 287 return 0; 288 289failed: 290 pcmcia_disable_device(pdev); 291 return ret; 292} 293 294/** 295 * pcmcia_remove_one - unplug an pcmcia interface 296 * @pdev: pcmcia device 297 * 298 * A PCMCIA ATA device has been unplugged. Perform the needed 299 * cleanup. Also called on module unload for any active devices. 300 */ 301 302static void pcmcia_remove_one(struct pcmcia_device *pdev) 303{ 304 struct ata_host *host = pdev->priv; 305 306 if (host) 307 ata_host_detach(host); 308 309 pcmcia_disable_device(pdev); 310} 311 312static struct pcmcia_device_id pcmcia_devices[] = { 313 PCMCIA_DEVICE_FUNC_ID(4), 314 PCMCIA_DEVICE_MANF_CARD(0x0000, 0x0000), /* Corsair */ 315 PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */ 316 PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000), /* I-O Data CFA */ 317 PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001), /* Mitsubishi CFA */ 318 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704), 319 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904), 320 PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401), /* SanDisk CFA */ 321 PCMCIA_DEVICE_MANF_CARD(0x004f, 0x0000), /* Kingston */ 322 PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620), /* TI emulated */ 323 PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */ 324 PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d), 325 PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */ 326 PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */ 327 PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001), 328 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100), /* Viking CFA */ 329 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar, Viking CFA */ 330 PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0), 331 PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74), 332 PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9), 333 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591), 334 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728), 335 PCMCIA_DEVICE_PROD_ID12("CNF ", "CD-ROM", 0x46d7db81, 0x66536591), 336 PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591), 337 PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4), 338 PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde), 339 PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf), 340 PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591), 341 PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728), 342 PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e), 343 PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae), 344 PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178), 345 PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420), 346 PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178), 347 PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753), 348 PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 1GB", 0x2e6d1829, 0x55d5bffb), 349 PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 4GB", 0x2e6d1829, 0x531e7d10), 350 PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e), 351 PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2 ", 0x547e66dc, 0x8671043b), 352 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149), 353 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674), 354 PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2 ", 0xe37be2b5, 0x8671043b), 355 PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF300", 0x7ed2ad87, 0x7e9e78ee), 356 PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c), 357 PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79), 358 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591), 359 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728), 360 PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1), 361 PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883), 362 PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d), 363 PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6), 364 PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003), 365 PCMCIA_DEVICE_PROD_ID1("TRANSCEND 512M ", 0xd0909443), 366 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF45", 0x709b1bf1, 0xf68b6f32), 367 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1), 368 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2), 369 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8), 370 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF133", 0x709b1bf1, 0x7558f133), 371 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS8GCF133", 0x709b1bf1, 0xb2f89b47), 372 PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852), 373 PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918), 374 PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209), 375 PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e), 376 PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6), 377 PCMCIA_DEVICE_PROD_ID2("Flash Card", 0x5a362506), 378 PCMCIA_DEVICE_NULL, 379}; 380 381MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices); 382 383static struct pcmcia_driver pcmcia_driver = { 384 .owner = THIS_MODULE, 385 .name = DRV_NAME, 386 .id_table = pcmcia_devices, 387 .probe = pcmcia_init_one, 388 .remove = pcmcia_remove_one, 389}; 390 391static int __init pcmcia_init(void) 392{ 393 return pcmcia_register_driver(&pcmcia_driver); 394} 395 396static void __exit pcmcia_exit(void) 397{ 398 pcmcia_unregister_driver(&pcmcia_driver); 399} 400 401MODULE_AUTHOR("Alan Cox"); 402MODULE_DESCRIPTION("low-level driver for PCMCIA ATA"); 403MODULE_LICENSE("GPL"); 404MODULE_VERSION(DRV_VERSION); 405 406module_init(pcmcia_init); 407module_exit(pcmcia_exit); 408