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 "0.3.0" 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 static struct scsi_host_template pcmcia_sht = { 58 .module = THIS_MODULE, 59 .name = DRV_NAME, 60 .ioctl = ata_scsi_ioctl, 61 .queuecommand = ata_scsi_queuecmd, 62 .can_queue = ATA_DEF_QUEUE, 63 .this_id = ATA_SHT_THIS_ID, 64 .sg_tablesize = LIBATA_MAX_PRD, 65 .cmd_per_lun = ATA_SHT_CMD_PER_LUN, 66 .emulated = ATA_SHT_EMULATED, 67 .use_clustering = ATA_SHT_USE_CLUSTERING, 68 .proc_name = DRV_NAME, 69 .dma_boundary = ATA_DMA_BOUNDARY, 70 .slave_configure = ata_scsi_slave_config, 71 .slave_destroy = ata_scsi_slave_destroy, 72 .bios_param = ata_std_bios_param, 73 }; 74 75 static struct ata_port_operations pcmcia_port_ops = { 76 .port_disable = ata_port_disable, 77 .tf_load = ata_tf_load, 78 .tf_read = ata_tf_read, 79 .check_status = ata_check_status, 80 .exec_command = ata_exec_command, 81 .dev_select = ata_std_dev_select, 82 83 .freeze = ata_bmdma_freeze, 84 .thaw = ata_bmdma_thaw, 85 .error_handler = ata_bmdma_error_handler, 86 .post_internal_cmd = ata_bmdma_post_internal_cmd, 87 88 .qc_prep = ata_qc_prep, 89 .qc_issue = ata_qc_issue_prot, 90 91 .data_xfer = ata_data_xfer_noirq, 92 93 .irq_handler = ata_interrupt, 94 .irq_clear = ata_bmdma_irq_clear, 95 .irq_on = ata_irq_on, 96 .irq_ack = ata_irq_ack, 97 98 .port_start = ata_port_start, 99 }; 100 101 #define CS_CHECK(fn, ret) \ 102 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) 103 104 /** 105 * pcmcia_init_one - attach a PCMCIA interface 106 * @pdev: pcmcia device 107 * 108 * Register a PCMCIA IDE interface. Such interfaces are PIO 0 and 109 * shared IRQ. 110 */ 111 112 static int pcmcia_init_one(struct pcmcia_device *pdev) 113 { 114 struct ata_probe_ent ae; 115 struct ata_pcmcia_info *info; 116 tuple_t tuple; 117 struct { 118 unsigned short buf[128]; 119 cisparse_t parse; 120 config_info_t conf; 121 cistpl_cftable_entry_t dflt; 122 } *stk = NULL; 123 cistpl_cftable_entry_t *cfg; 124 int pass, last_ret = 0, last_fn = 0, is_kme = 0, ret = -ENOMEM; 125 unsigned long io_base, ctl_base; 126 void __iomem *io_addr, *ctl_addr; 127 128 info = kzalloc(sizeof(*info), GFP_KERNEL); 129 if (info == NULL) 130 return -ENOMEM; 131 132 /* Glue stuff together. FIXME: We may be able to get rid of info with care */ 133 info->pdev = pdev; 134 pdev->priv = info; 135 136 /* Set up attributes in order to probe card and get resources */ 137 pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; 138 pdev->io.Attributes2 = IO_DATA_PATH_WIDTH_8; 139 pdev->io.IOAddrLines = 3; 140 pdev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; 141 pdev->irq.IRQInfo1 = IRQ_LEVEL_ID; 142 pdev->conf.Attributes = CONF_ENABLE_IRQ; 143 pdev->conf.IntType = INT_MEMORY_AND_IO; 144 145 /* Allocate resoure probing structures */ 146 147 stk = kzalloc(sizeof(*stk), GFP_KERNEL); 148 if (!stk) 149 goto out1; 150 151 cfg = &stk->parse.cftable_entry; 152 153 /* Tuples we are walking */ 154 tuple.TupleData = (cisdata_t *)&stk->buf; 155 tuple.TupleOffset = 0; 156 tuple.TupleDataMax = 255; 157 tuple.Attributes = 0; 158 159 /* See if we have a manufacturer identifier. Use it to set is_kme for 160 vendor quirks */ 161 is_kme = ((pdev->manf_id == MANFID_KME) && 162 ((pdev->card_id == PRODID_KME_KXLC005_A) || 163 (pdev->card_id == PRODID_KME_KXLC005_B))); 164 165 /* Not sure if this is right... look up the current Vcc */ 166 CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(pdev, &stk->conf)); 167 /* link->conf.Vcc = stk->conf.Vcc; */ 168 169 pass = io_base = ctl_base = 0; 170 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; 171 tuple.Attributes = 0; 172 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(pdev, &tuple)); 173 174 /* Now munch the resources looking for a suitable set */ 175 while (1) { 176 if (pcmcia_get_tuple_data(pdev, &tuple) != 0) 177 goto next_entry; 178 if (pcmcia_parse_tuple(pdev, &tuple, &stk->parse) != 0) 179 goto next_entry; 180 /* Check for matching Vcc, unless we're desperate */ 181 if (!pass) { 182 if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) { 183 if (stk->conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000) 184 goto next_entry; 185 } else if (stk->dflt.vcc.present & (1 << CISTPL_POWER_VNOM)) { 186 if (stk->conf.Vcc != stk->dflt.vcc.param[CISTPL_POWER_VNOM] / 10000) 187 goto next_entry; 188 } 189 } 190 191 if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM)) 192 pdev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000; 193 else if (stk->dflt.vpp1.present & (1 << CISTPL_POWER_VNOM)) 194 pdev->conf.Vpp = stk->dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000; 195 196 if ((cfg->io.nwin > 0) || (stk->dflt.io.nwin > 0)) { 197 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &stk->dflt.io; 198 pdev->conf.ConfigIndex = cfg->index; 199 pdev->io.BasePort1 = io->win[0].base; 200 pdev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK; 201 if (!(io->flags & CISTPL_IO_16BIT)) 202 pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; 203 if (io->nwin == 2) { 204 pdev->io.NumPorts1 = 8; 205 pdev->io.BasePort2 = io->win[1].base; 206 pdev->io.NumPorts2 = (is_kme) ? 2 : 1; 207 if (pcmcia_request_io(pdev, &pdev->io) != 0) 208 goto next_entry; 209 io_base = pdev->io.BasePort1; 210 ctl_base = pdev->io.BasePort2; 211 } else if ((io->nwin == 1) && (io->win[0].len >= 16)) { 212 pdev->io.NumPorts1 = io->win[0].len; 213 pdev->io.NumPorts2 = 0; 214 if (pcmcia_request_io(pdev, &pdev->io) != 0) 215 goto next_entry; 216 io_base = pdev->io.BasePort1; 217 ctl_base = pdev->io.BasePort1 + 0x0e; 218 } else goto next_entry; 219 /* If we've got this far, we're done */ 220 break; 221 } 222 next_entry: 223 if (cfg->flags & CISTPL_CFTABLE_DEFAULT) 224 memcpy(&stk->dflt, cfg, sizeof(stk->dflt)); 225 if (pass) { 226 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(pdev, &tuple)); 227 } else if (pcmcia_get_next_tuple(pdev, &tuple) != 0) { 228 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(pdev, &tuple)); 229 memset(&stk->dflt, 0, sizeof(stk->dflt)); 230 pass++; 231 } 232 } 233 234 CS_CHECK(RequestIRQ, pcmcia_request_irq(pdev, &pdev->irq)); 235 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(pdev, &pdev->conf)); 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 (pdev->io.NumPorts1 >= 0x20) 252 printk(KERN_WARNING DRV_NAME ": second channel not yet supported.\n"); 253 254 /* 255 * Having done the PCMCIA plumbing the ATA side is relatively 256 * sane. 257 */ 258 259 memset(&ae, 0, sizeof(struct ata_probe_ent)); 260 INIT_LIST_HEAD(&ae.node); 261 ae.dev = &pdev->dev; 262 ae.port_ops = &pcmcia_port_ops; 263 ae.sht = &pcmcia_sht; 264 ae.n_ports = 1; 265 ae.pio_mask = 1; /* ISA so PIO 0 cycles */ 266 ae.irq = pdev->irq.AssignedIRQ; 267 ae.irq_flags = IRQF_SHARED; 268 ae.port_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST; 269 ae.port[0].cmd_addr = io_addr; 270 ae.port[0].altstatus_addr = ctl_addr; 271 ae.port[0].ctl_addr = ctl_addr; 272 ata_std_ports(&ae.port[0]); 273 274 ret = -ENODEV; 275 if (ata_device_add(&ae) == 0) 276 goto failed; 277 278 info->ndev = 1; 279 kfree(stk); 280 return 0; 281 282 cs_failed: 283 cs_error(pdev, last_fn, last_ret); 284 failed: 285 kfree(stk); 286 info->ndev = 0; 287 pcmcia_disable_device(pdev); 288 out1: 289 kfree(info); 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_pcmcia_info *info = pdev->priv; 304 struct device *dev = &pdev->dev; 305 306 if (info != NULL) { 307 /* If we have attached the device to the ATA layer, detach it */ 308 if (info->ndev) { 309 struct ata_host *host = dev_get_drvdata(dev); 310 ata_host_detach(host); 311 } 312 info->ndev = 0; 313 pdev->priv = NULL; 314 } 315 pcmcia_disable_device(pdev); 316 kfree(info); 317 } 318 319 static struct pcmcia_device_id pcmcia_devices[] = { 320 PCMCIA_DEVICE_FUNC_ID(4), 321 PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */ 322 PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000), /* I-O Data CFA */ 323 PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001), /* Mitsubishi CFA */ 324 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704), 325 PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401), /* SanDisk CFA */ 326 PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */ 327 PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d), 328 PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */ 329 PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */ 330 PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001), 331 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100), /* Viking CFA */ 332 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar, Viking CFA */ 333 PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0), 334 PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74), 335 PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9), 336 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591), 337 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728), 338 PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591), 339 PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4), 340 PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde), 341 PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf), 342 PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591), 343 PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728), 344 PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e), 345 PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae), 346 PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178), 347 PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178), 348 PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753), 349 PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2 ", 0x547e66dc, 0x8671043b), 350 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149), 351 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674), 352 PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2 ", 0xe37be2b5, 0x8671043b), 353 PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c), 354 PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79), 355 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591), 356 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728), 357 PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1), 358 PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883), 359 PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d), 360 PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6), 361 PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003), 362 PCMCIA_DEVICE_PROD_ID1("TRANSCEND 512M ", 0xd0909443), 363 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1), 364 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8), 365 PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852), 366 PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918), 367 PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209), 368 PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e), 369 PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6), 370 PCMCIA_DEVICE_NULL, 371 }; 372 373 MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices); 374 375 static struct pcmcia_driver pcmcia_driver = { 376 .owner = THIS_MODULE, 377 .drv = { 378 .name = DRV_NAME, 379 }, 380 .id_table = pcmcia_devices, 381 .probe = pcmcia_init_one, 382 .remove = pcmcia_remove_one, 383 }; 384 385 static int __init pcmcia_init(void) 386 { 387 return pcmcia_register_driver(&pcmcia_driver); 388 } 389 390 static void __exit pcmcia_exit(void) 391 { 392 pcmcia_unregister_driver(&pcmcia_driver); 393 } 394 395 MODULE_AUTHOR("Alan Cox"); 396 MODULE_DESCRIPTION("low-level driver for PCMCIA ATA"); 397 MODULE_LICENSE("GPL"); 398 MODULE_VERSION(DRV_VERSION); 399 400 module_init(pcmcia_init); 401 module_exit(pcmcia_exit); 402