drivers/ata/pata_pcmcia.c

   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 "0.3.1"
  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  *      @ap: Port
  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_port *ap, struct ata_device **r_failed_dev)
  69 {
  70         struct ata_device *master = &ap->device[0];
  71         struct ata_device *slave = &ap->device[1];
  72
  73         if (!ata_dev_enabled(master) || !ata_dev_enabled(slave))
  74                 return ata_do_set_mode(ap, 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         {
  79                 /* Suspicious match, but could be two cards from
  80                    the same vendor - check serial */
  81                 if (memcmp(master->id + ATA_ID_SERNO, slave->id + ATA_ID_SERNO,
  82                            ATA_ID_SERNO_LEN) == 0 && master->id[ATA_ID_SERNO] >> 8) {
  83                         ata_dev_printk(slave, KERN_WARNING, "is a ghost device, ignoring.\n");
  84                         ata_dev_disable(slave);
  85                 }
  86         }
  87         return ata_do_set_mode(ap, r_failed_dev);
  88 }
  89
  90 static struct scsi_host_template pcmcia_sht = {
  91         .module                 = THIS_MODULE,
  92         .name                   = DRV_NAME,
  93         .ioctl                  = ata_scsi_ioctl,
  94         .queuecommand           = ata_scsi_queuecmd,
  95         .can_queue              = ATA_DEF_QUEUE,
  96         .this_id                = ATA_SHT_THIS_ID,
  97         .sg_tablesize           = LIBATA_MAX_PRD,
  98         .cmd_per_lun            = ATA_SHT_CMD_PER_LUN,
  99         .emulated               = ATA_SHT_EMULATED,
 100         .use_clustering         = ATA_SHT_USE_CLUSTERING,
 101         .proc_name              = DRV_NAME,
 102         .dma_boundary           = ATA_DMA_BOUNDARY,
 103         .slave_configure        = ata_scsi_slave_config,
 104         .slave_destroy          = ata_scsi_slave_destroy,
 105         .bios_param             = ata_std_bios_param,
 106 };
 107
 108 static struct ata_port_operations pcmcia_port_ops = {
 109         .set_mode       = pcmcia_set_mode,
 110         .port_disable   = ata_port_disable,
 111         .tf_load        = ata_tf_load,
 112         .tf_read        = ata_tf_read,
 113         .check_status   = ata_check_status,
 114         .exec_command   = ata_exec_command,
 115         .dev_select     = ata_std_dev_select,
 116
 117         .freeze         = ata_bmdma_freeze,
 118         .thaw           = ata_bmdma_thaw,
 119         .error_handler  = ata_bmdma_error_handler,
 120         .post_internal_cmd = ata_bmdma_post_internal_cmd,
 121         .cable_detect   = ata_cable_40wire,
 122
 123         .qc_prep        = ata_qc_prep,
 124         .qc_issue       = ata_qc_issue_prot,
 125
 126         .data_xfer      = ata_data_xfer_noirq,
 127
 128         .irq_clear      = ata_bmdma_irq_clear,
 129         .irq_on         = ata_irq_on,
 130         .irq_ack        = ata_irq_ack,
 131
 132         .port_start     = ata_sff_port_start,
 133 };
 134
 135 #define CS_CHECK(fn, ret) \
 136 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
 137
 138 /**
 139  *      pcmcia_init_one         -       attach a PCMCIA interface
 140  *      @pdev: pcmcia device
 141  *
 142  *      Register a PCMCIA IDE interface. Such interfaces are PIO 0 and
 143  *      shared IRQ.
 144  */
 145
 146 static int pcmcia_init_one(struct pcmcia_device *pdev)
 147 {
 148         struct ata_host *host;
 149         struct ata_port *ap;
 150         struct ata_pcmcia_info *info;
 151         tuple_t tuple;
 152         struct {
 153                 unsigned short buf[128];
 154                 cisparse_t parse;
 155                 config_info_t conf;
 156                 cistpl_cftable_entry_t dflt;
 157         } *stk = NULL;
 158         cistpl_cftable_entry_t *cfg;
 159         int pass, last_ret = 0, last_fn = 0, is_kme = 0, ret = -ENOMEM;
 160         unsigned long io_base, ctl_base;
 161         void __iomem *io_addr, *ctl_addr;
 162
 163         info = kzalloc(sizeof(*info), GFP_KERNEL);
 164         if (info == NULL)
 165                 return -ENOMEM;
 166
 167         /* Glue stuff together. FIXME: We may be able to get rid of info with care */
 168         info->pdev = pdev;
 169         pdev->priv = info;
 170
 171         /* Set up attributes in order to probe card and get resources */
 172         pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
 173         pdev->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
 174         pdev->io.IOAddrLines = 3;
 175         pdev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
 176         pdev->irq.IRQInfo1 = IRQ_LEVEL_ID;
 177         pdev->conf.Attributes = CONF_ENABLE_IRQ;
 178         pdev->conf.IntType = INT_MEMORY_AND_IO;
 179
 180         /* Allocate resoure probing structures */
 181
 182         stk = kzalloc(sizeof(*stk), GFP_KERNEL);
 183         if (!stk)
 184                 goto out1;
 185
 186         cfg = &stk->parse.cftable_entry;
 187
 188         /* Tuples we are walking */
 189         tuple.TupleData = (cisdata_t *)&stk->buf;
 190         tuple.TupleOffset = 0;
 191         tuple.TupleDataMax = 255;
 192         tuple.Attributes = 0;
 193
 194         /* See if we have a manufacturer identifier. Use it to set is_kme for
 195            vendor quirks */
 196         is_kme = ((pdev->manf_id == MANFID_KME) &&
 197                   ((pdev->card_id == PRODID_KME_KXLC005_A) ||
 198                    (pdev->card_id == PRODID_KME_KXLC005_B)));
 199
 200         /* Not sure if this is right... look up the current Vcc */
 201         CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(pdev, &stk->conf));
 202 /*      link->conf.Vcc = stk->conf.Vcc; */
 203
 204         pass = io_base = ctl_base = 0;
 205         tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
 206         tuple.Attributes = 0;
 207         CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(pdev, &tuple));
 208
 209         /* Now munch the resources looking for a suitable set */
 210         while (1) {
 211                 if (pcmcia_get_tuple_data(pdev, &tuple) != 0)
 212                         goto next_entry;
 213                 if (pcmcia_parse_tuple(pdev, &tuple, &stk->parse) != 0)
 214                         goto next_entry;
 215                 /* Check for matching Vcc, unless we're desperate */
 216                 if (!pass) {
 217                         if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
 218                                 if (stk->conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000)
 219                                         goto next_entry;
 220                         } else if (stk->dflt.vcc.present & (1 << CISTPL_POWER_VNOM)) {
 221                                 if (stk->conf.Vcc != stk->dflt.vcc.param[CISTPL_POWER_VNOM] / 10000)
 222                                         goto next_entry;
 223                         }
 224                 }
 225
 226                 if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
 227                         pdev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
 228                 else if (stk->dflt.vpp1.present & (1 << CISTPL_POWER_VNOM))
 229                         pdev->conf.Vpp = stk->dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000;
 230
 231                 if ((cfg->io.nwin > 0) || (stk->dflt.io.nwin > 0)) {
 232                         cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &stk->dflt.io;
 233                         pdev->conf.ConfigIndex = cfg->index;
 234                         pdev->io.BasePort1 = io->win[0].base;
 235                         pdev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
 236                         if (!(io->flags & CISTPL_IO_16BIT))
 237                                 pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
 238                         if (io->nwin == 2) {
 239                                 pdev->io.NumPorts1 = 8;
 240                                 pdev->io.BasePort2 = io->win[1].base;
 241                                 pdev->io.NumPorts2 = (is_kme) ? 2 : 1;
 242                                 if (pcmcia_request_io(pdev, &pdev->io) != 0)
 243                                         goto next_entry;
 244                                 io_base = pdev->io.BasePort1;
 245                                 ctl_base = pdev->io.BasePort2;
 246                         } else if ((io->nwin == 1) && (io->win[0].len >= 16)) {
 247                                 pdev->io.NumPorts1 = io->win[0].len;
 248                                 pdev->io.NumPorts2 = 0;
 249                                 if (pcmcia_request_io(pdev, &pdev->io) != 0)
 250                                         goto next_entry;
 251                                 io_base = pdev->io.BasePort1;
 252                                 ctl_base = pdev->io.BasePort1 + 0x0e;
 253                         } else goto next_entry;
 254                         /* If we've got this far, we're done */
 255                         break;
 256                 }
 257 next_entry:
 258                 if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
 259                         memcpy(&stk->dflt, cfg, sizeof(stk->dflt));
 260                 if (pass) {
 261                         CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(pdev, &tuple));
 262                 } else if (pcmcia_get_next_tuple(pdev, &tuple) != 0) {
 263                         CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(pdev, &tuple));
 264                         memset(&stk->dflt, 0, sizeof(stk->dflt));
 265                         pass++;
 266                 }
 267         }
 268
 269         CS_CHECK(RequestIRQ, pcmcia_request_irq(pdev, &pdev->irq));
 270         CS_CHECK(RequestConfiguration, pcmcia_request_configuration(pdev, &pdev->conf));
 271
 272         /* iomap */
 273         ret = -ENOMEM;
 274         io_addr = devm_ioport_map(&pdev->dev, io_base, 8);
 275         ctl_addr = devm_ioport_map(&pdev->dev, ctl_base, 1);
 276         if (!io_addr || !ctl_addr)
 277                 goto failed;
 278
 279         /* Success. Disable the IRQ nIEN line, do quirks */
 280         iowrite8(0x02, ctl_addr);
 281         if (is_kme)
 282                 iowrite8(0x81, ctl_addr + 0x01);
 283
 284         /* FIXME: Could be more ports at base + 0x10 but we only deal with
 285            one right now */
 286         if (pdev->io.NumPorts1 >= 0x20)
 287                 printk(KERN_WARNING DRV_NAME ": second channel not yet supported.\n");
 288
 289         /*
 290          *      Having done the PCMCIA plumbing the ATA side is relatively
 291          *      sane.
 292          */
 293         ret = -ENOMEM;
 294         host = ata_host_alloc(&pdev->dev, 1);
 295         if (!host)
 296                 goto failed;
 297         ap = host->ports[0];
 298
 299         ap->ops = &pcmcia_port_ops;
 300         ap->pio_mask = 1;               /* ISA so PIO 0 cycles */
 301         ap->flags |= ATA_FLAG_SLAVE_POSS;
 302         ap->ioaddr.cmd_addr = io_addr;
 303         ap->ioaddr.altstatus_addr = ctl_addr;
 304         ap->ioaddr.ctl_addr = ctl_addr;
 305         ata_std_ports(&ap->ioaddr);
 306
 307         /* activate */
 308         ret = ata_host_activate(host, pdev->irq.AssignedIRQ, ata_interrupt,
 309                                 IRQF_SHARED, &pcmcia_sht);
 310         if (ret)
 311                 goto failed;
 312
 313         info->ndev = 1;
 314         kfree(stk);
 315         return 0;
 316
 317 cs_failed:
 318         cs_error(pdev, last_fn, last_ret);
 319 failed:
 320         kfree(stk);
 321         info->ndev = 0;
 322         pcmcia_disable_device(pdev);
 323 out1:
 324         kfree(info);
 325         return ret;
 326 }
 327
 328 /**
 329  *      pcmcia_remove_one       -       unplug an pcmcia interface
 330  *      @pdev: pcmcia device
 331  *
 332  *      A PCMCIA ATA device has been unplugged. Perform the needed
 333  *      cleanup. Also called on module unload for any active devices.
 334  */
 335
 336 static void pcmcia_remove_one(struct pcmcia_device *pdev)
 337 {
 338         struct ata_pcmcia_info *info = pdev->priv;
 339         struct device *dev = &pdev->dev;
 340
 341         if (info != NULL) {
 342                 /* If we have attached the device to the ATA layer, detach it */
 343                 if (info->ndev) {
 344                         struct ata_host *host = dev_get_drvdata(dev);
 345                         ata_host_detach(host);
 346                 }
 347                 info->ndev = 0;
 348                 pdev->priv = NULL;
 349         }
 350         pcmcia_disable_device(pdev);
 351         kfree(info);
 352 }
 353
 354 static struct pcmcia_device_id pcmcia_devices[] = {
 355         PCMCIA_DEVICE_FUNC_ID(4),
 356         PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000),        /* Hitachi */
 357         PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000),        /* I-O Data CFA */
 358         PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001),        /* Mitsubishi CFA */
 359         PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
 360         PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904),
 361         PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401),        /* SanDisk CFA */
 362         PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000),        /* Toshiba */
 363         PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),
 364         PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000),        /* Samsung */
 365         PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000),        /* Hitachi */
 366         PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001),
 367         PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100),        /* Viking CFA */
 368         PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200),        /* Lexar, Viking CFA */
 369         PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0),
 370         PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74),
 371         PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9),
 372         PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591),
 373         PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728),
 374         PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591),
 375         PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4),
 376         PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde),
 377         PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf),
 378         PCMCIA_DEVICE_PROD_ID12("EXP   ", "CD-ROM", 0x0a5c52fd, 0x66536591),
 379         PCMCIA_DEVICE_PROD_ID12("EXP   ", "PnPIDE", 0x0a5c52fd, 0x0c694728),
 380         PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e),
 381         PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae),
 382         PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178),
 383         PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
 384         PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
 385         PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e),
 386         PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2      ", 0x547e66dc, 0x8671043b),
 387         PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149),
 388         PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674),
 389         PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2      ", 0xe37be2b5, 0x8671043b),
 390         PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c),
 391         PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79),
 392         PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591),
 393         PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728),
 394         PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1),
 395         PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883),
 396         PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d),
 397         PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6),
 398         PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003),
 399         PCMCIA_DEVICE_PROD_ID1("TRANSCEND    512M   ", 0xd0909443),
 400         PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1),
 401         PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2),
 402         PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8),
 403         PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),
 404         PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918),
 405         PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209),
 406         PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e),
 407         PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6),
 408         PCMCIA_DEVICE_NULL,
 409 };
 410
 411 MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices);
 412
 413 static struct pcmcia_driver pcmcia_driver = {
 414         .owner          = THIS_MODULE,
 415         .drv = {
 416                 .name           = DRV_NAME,
 417         },
 418         .id_table       = pcmcia_devices,
 419         .probe          = pcmcia_init_one,
 420         .remove         = pcmcia_remove_one,
 421 };
 422
 423 static int __init pcmcia_init(void)
 424 {
 425         return pcmcia_register_driver(&pcmcia_driver);
 426 }
 427
 428 static void __exit pcmcia_exit(void)
 429 {
 430         pcmcia_unregister_driver(&pcmcia_driver);
 431 }
 432
 433 MODULE_AUTHOR("Alan Cox");
 434 MODULE_DESCRIPTION("low-level driver for PCMCIA ATA");
 435 MODULE_LICENSE("GPL");
 436 MODULE_VERSION(DRV_VERSION);
 437
 438 module_init(pcmcia_init);
 439 module_exit(pcmcia_exit);