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/blkdev.h> 30 #include <linux/delay.h> 31 #include <linux/slab.h> 32 #include <scsi/scsi_host.h> 33 #include <linux/ata.h> 34 #include <linux/libata.h> 35 36 #include <pcmcia/cistpl.h> 37 #include <pcmcia/ds.h> 38 #include <pcmcia/cisreg.h> 39 #include <pcmcia/ciscode.h> 40 41 42 #define DRV_NAME "pata_pcmcia" 43 #define DRV_VERSION "0.3.5" 44 45 /** 46 * pcmcia_set_mode - PCMCIA specific mode setup 47 * @link: link 48 * @r_failed_dev: Return pointer for failed device 49 * 50 * Perform the tuning and setup of the devices and timings, which 51 * for PCMCIA is the same as any other controller. We wrap it however 52 * as we need to spot hardware with incorrect or missing master/slave 53 * decode, which alas is embarrassingly common in the PC world 54 */ 55 56 static int pcmcia_set_mode(struct ata_link *link, struct ata_device **r_failed_dev) 57 { 58 struct ata_device *master = &link->device[0]; 59 struct ata_device *slave = &link->device[1]; 60 61 if (!ata_dev_enabled(master) || !ata_dev_enabled(slave)) 62 return ata_do_set_mode(link, r_failed_dev); 63 64 if (memcmp(master->id + ATA_ID_FW_REV, slave->id + ATA_ID_FW_REV, 65 ATA_ID_FW_REV_LEN + ATA_ID_PROD_LEN) == 0) { 66 /* Suspicious match, but could be two cards from 67 the same vendor - check serial */ 68 if (memcmp(master->id + ATA_ID_SERNO, slave->id + ATA_ID_SERNO, 69 ATA_ID_SERNO_LEN) == 0 && master->id[ATA_ID_SERNO] >> 8) { 70 ata_dev_warn(slave, "is a ghost device, ignoring\n"); 71 ata_dev_disable(slave); 72 } 73 } 74 return ata_do_set_mode(link, r_failed_dev); 75 } 76 77 /** 78 * pcmcia_set_mode_8bit - PCMCIA specific mode setup 79 * @link: link 80 * @r_failed_dev: Return pointer for failed device 81 * 82 * For the simple emulated 8bit stuff the less we do the better. 83 */ 84 85 static int pcmcia_set_mode_8bit(struct ata_link *link, 86 struct ata_device **r_failed_dev) 87 { 88 return 0; 89 } 90 91 /** 92 * ata_data_xfer_8bit - Transfer data by 8bit PIO 93 * @dev: device to target 94 * @buf: data buffer 95 * @buflen: buffer length 96 * @rw: read/write 97 * 98 * Transfer data from/to the device data register by 8 bit PIO. 99 * 100 * LOCKING: 101 * Inherited from caller. 102 */ 103 104 static unsigned int ata_data_xfer_8bit(struct ata_device *dev, 105 unsigned char *buf, unsigned int buflen, int rw) 106 { 107 struct ata_port *ap = dev->link->ap; 108 109 if (rw == READ) 110 ioread8_rep(ap->ioaddr.data_addr, buf, buflen); 111 else 112 iowrite8_rep(ap->ioaddr.data_addr, buf, buflen); 113 114 return buflen; 115 } 116 117 /** 118 * pcmcia_8bit_drain_fifo - Stock FIFO drain logic for SFF controllers 119 * @qc: command 120 * 121 * Drain the FIFO and device of any stuck data following a command 122 * failing to complete. In some cases this is necessary before a 123 * reset will recover the device. 124 * 125 */ 126 127 static void pcmcia_8bit_drain_fifo(struct ata_queued_cmd *qc) 128 { 129 int count; 130 struct ata_port *ap; 131 132 /* We only need to flush incoming data when a command was running */ 133 if (qc == NULL || qc->dma_dir == DMA_TO_DEVICE) 134 return; 135 136 ap = qc->ap; 137 138 /* Drain up to 64K of data before we give up this recovery method */ 139 for (count = 0; (ap->ops->sff_check_status(ap) & ATA_DRQ) 140 && count++ < 65536;) 141 ioread8(ap->ioaddr.data_addr); 142 143 if (count) 144 ata_port_warn(ap, "drained %d bytes to clear DRQ\n", count); 145 146 } 147 148 static struct scsi_host_template pcmcia_sht = { 149 ATA_PIO_SHT(DRV_NAME), 150 }; 151 152 static struct ata_port_operations pcmcia_port_ops = { 153 .inherits = &ata_sff_port_ops, 154 .sff_data_xfer = ata_sff_data_xfer_noirq, 155 .cable_detect = ata_cable_40wire, 156 .set_mode = pcmcia_set_mode, 157 }; 158 159 static struct ata_port_operations pcmcia_8bit_port_ops = { 160 .inherits = &ata_sff_port_ops, 161 .sff_data_xfer = ata_data_xfer_8bit, 162 .cable_detect = ata_cable_40wire, 163 .set_mode = pcmcia_set_mode_8bit, 164 .sff_drain_fifo = pcmcia_8bit_drain_fifo, 165 }; 166 167 168 static int pcmcia_check_one_config(struct pcmcia_device *pdev, void *priv_data) 169 { 170 int *is_kme = priv_data; 171 172 if ((pdev->resource[0]->flags & IO_DATA_PATH_WIDTH) 173 != IO_DATA_PATH_WIDTH_8) { 174 pdev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; 175 pdev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; 176 } 177 pdev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH; 178 pdev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8; 179 180 if (pdev->resource[1]->end) { 181 pdev->resource[0]->end = 8; 182 pdev->resource[1]->end = (*is_kme) ? 2 : 1; 183 } else { 184 if (pdev->resource[0]->end < 16) 185 return -ENODEV; 186 } 187 188 return pcmcia_request_io(pdev); 189 } 190 191 /** 192 * pcmcia_init_one - attach a PCMCIA interface 193 * @pdev: pcmcia device 194 * 195 * Register a PCMCIA IDE interface. Such interfaces are PIO 0 and 196 * shared IRQ. 197 */ 198 199 static int pcmcia_init_one(struct pcmcia_device *pdev) 200 { 201 struct ata_host *host; 202 struct ata_port *ap; 203 int is_kme = 0, ret = -ENOMEM, p; 204 unsigned long io_base, ctl_base; 205 void __iomem *io_addr, *ctl_addr; 206 int n_ports = 1; 207 struct ata_port_operations *ops = &pcmcia_port_ops; 208 209 /* Set up attributes in order to probe card and get resources */ 210 pdev->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO | 211 CONF_AUTO_SET_VPP | CONF_AUTO_CHECK_VCC; 212 213 /* See if we have a manufacturer identifier. Use it to set is_kme for 214 vendor quirks */ 215 is_kme = ((pdev->manf_id == MANFID_KME) && 216 ((pdev->card_id == PRODID_KME_KXLC005_A) || 217 (pdev->card_id == PRODID_KME_KXLC005_B))); 218 219 if (pcmcia_loop_config(pdev, pcmcia_check_one_config, &is_kme)) { 220 pdev->config_flags &= ~CONF_AUTO_CHECK_VCC; 221 if (pcmcia_loop_config(pdev, pcmcia_check_one_config, &is_kme)) 222 goto failed; /* No suitable config found */ 223 } 224 io_base = pdev->resource[0]->start; 225 if (pdev->resource[1]->end) 226 ctl_base = pdev->resource[1]->start; 227 else 228 ctl_base = pdev->resource[0]->start + 0x0e; 229 230 if (!pdev->irq) 231 goto failed; 232 233 ret = pcmcia_enable_device(pdev); 234 if (ret) 235 goto failed; 236 237 /* iomap */ 238 ret = -ENOMEM; 239 io_addr = devm_ioport_map(&pdev->dev, io_base, 8); 240 ctl_addr = devm_ioport_map(&pdev->dev, ctl_base, 1); 241 if (!io_addr || !ctl_addr) 242 goto failed; 243 244 /* Success. Disable the IRQ nIEN line, do quirks */ 245 iowrite8(0x02, ctl_addr); 246 if (is_kme) 247 iowrite8(0x81, ctl_addr + 0x01); 248 249 /* FIXME: Could be more ports at base + 0x10 but we only deal with 250 one right now */ 251 if (resource_size(pdev->resource[0]) >= 0x20) 252 n_ports = 2; 253 254 if (pdev->manf_id == 0x0097 && pdev->card_id == 0x1620) 255 ops = &pcmcia_8bit_port_ops; 256 /* 257 * Having done the PCMCIA plumbing the ATA side is relatively 258 * sane. 259 */ 260 ret = -ENOMEM; 261 host = ata_host_alloc(&pdev->dev, n_ports); 262 if (!host) 263 goto failed; 264 265 for (p = 0; p < n_ports; p++) { 266 ap = host->ports[p]; 267 268 ap->ops = ops; 269 ap->pio_mask = ATA_PIO0; /* ISA so PIO 0 cycles */ 270 ap->flags |= ATA_FLAG_SLAVE_POSS; 271 ap->ioaddr.cmd_addr = io_addr + 0x10 * p; 272 ap->ioaddr.altstatus_addr = ctl_addr + 0x10 * p; 273 ap->ioaddr.ctl_addr = ctl_addr + 0x10 * p; 274 ata_sff_std_ports(&ap->ioaddr); 275 276 ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", io_base, ctl_base); 277 } 278 279 /* activate */ 280 ret = ata_host_activate(host, pdev->irq, ata_sff_interrupt, 281 IRQF_SHARED, &pcmcia_sht); 282 if (ret) 283 goto failed; 284 285 pdev->priv = host; 286 return 0; 287 288 failed: 289 pcmcia_disable_device(pdev); 290 return ret; 291 } 292 293 /** 294 * pcmcia_remove_one - unplug an pcmcia interface 295 * @pdev: pcmcia device 296 * 297 * A PCMCIA ATA device has been unplugged. Perform the needed 298 * cleanup. Also called on module unload for any active devices. 299 */ 300 301 static void pcmcia_remove_one(struct pcmcia_device *pdev) 302 { 303 struct ata_host *host = pdev->priv; 304 305 if (host) 306 ata_host_detach(host); 307 308 pcmcia_disable_device(pdev); 309 } 310 311 static const struct pcmcia_device_id pcmcia_devices[] = { 312 PCMCIA_DEVICE_FUNC_ID(4), 313 PCMCIA_DEVICE_MANF_CARD(0x0000, 0x0000), /* Corsair */ 314 PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */ 315 PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000), /* I-O Data CFA */ 316 PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001), /* Mitsubishi CFA */ 317 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704), 318 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904), 319 PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401), /* SanDisk CFA */ 320 PCMCIA_DEVICE_MANF_CARD(0x004f, 0x0000), /* Kingston */ 321 PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620), /* TI emulated */ 322 PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */ 323 PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d), 324 PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */ 325 PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */ 326 PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001), 327 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100), /* Viking CFA */ 328 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar, Viking CFA */ 329 PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0), 330 PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74), 331 PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9), 332 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591), 333 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728), 334 PCMCIA_DEVICE_PROD_ID12("CNF ", "CD-ROM", 0x46d7db81, 0x66536591), 335 PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591), 336 PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4), 337 PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde), 338 PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf), 339 PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591), 340 PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728), 341 PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e), 342 PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae), 343 PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178), 344 PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420), 345 PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178), 346 PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753), 347 PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 1GB", 0x2e6d1829, 0x55d5bffb), 348 PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 4GB", 0x2e6d1829, 0x531e7d10), 349 PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e), 350 PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2 ", 0x547e66dc, 0x8671043b), 351 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149), 352 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674), 353 PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2 ", 0xe37be2b5, 0x8671043b), 354 PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF300", 0x7ed2ad87, 0x7e9e78ee), 355 PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c), 356 PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79), 357 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591), 358 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728), 359 PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1), 360 PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883), 361 PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d), 362 PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6), 363 PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003), 364 PCMCIA_DEVICE_PROD_ID1("TRANSCEND 512M ", 0xd0909443), 365 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF45", 0x709b1bf1, 0xf68b6f32), 366 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1), 367 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2), 368 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8), 369 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF133", 0x709b1bf1, 0x7558f133), 370 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS8GCF133", 0x709b1bf1, 0xb2f89b47), 371 PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852), 372 PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918), 373 PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209), 374 PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e), 375 PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6), 376 PCMCIA_DEVICE_PROD_ID2("Flash Card", 0x5a362506), 377 PCMCIA_DEVICE_NULL, 378 }; 379 380 MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices); 381 382 static struct pcmcia_driver pcmcia_driver = { 383 .owner = THIS_MODULE, 384 .name = DRV_NAME, 385 .id_table = pcmcia_devices, 386 .probe = pcmcia_init_one, 387 .remove = pcmcia_remove_one, 388 }; 389 module_pcmcia_driver(pcmcia_driver); 390 391 MODULE_AUTHOR("Alan Cox"); 392 MODULE_DESCRIPTION("low-level driver for PCMCIA ATA"); 393 MODULE_LICENSE("GPL"); 394 MODULE_VERSION(DRV_VERSION); 395