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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * pata_pcmcia.c - PCMCIA PATA controller driver.4 * Copyright 2005-2006 Red Hat Inc, all rights reserved.5 * PCMCIA ident update Copyright 2006 Marcin Juszkiewicz6 * <openembedded@hrw.one.pl>7 *8 * Heavily based upon ide-cs.c9 * The initial developer of the original code is David A. Hinds10 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds11 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.12 */13 14#include <linux/kernel.h>15#include <linux/module.h>16#include <linux/blkdev.h>17#include <linux/delay.h>18#include <linux/slab.h>19#include <scsi/scsi_host.h>20#include <linux/ata.h>21#include <linux/libata.h>22 23#include <pcmcia/cistpl.h>24#include <pcmcia/ds.h>25#include <pcmcia/cisreg.h>26#include <pcmcia/ciscode.h>27 28 29#define DRV_NAME "pata_pcmcia"30#define DRV_VERSION "0.3.5"31 32/**33 * pcmcia_set_mode - PCMCIA specific mode setup34 * @link: link35 * @r_failed_dev: Return pointer for failed device36 *37 * Perform the tuning and setup of the devices and timings, which38 * for PCMCIA is the same as any other controller. We wrap it however39 * as we need to spot hardware with incorrect or missing master/slave40 * decode, which alas is embarrassingly common in the PC world41 */42 43static int pcmcia_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)44{45 struct ata_device *master = &link->device[0];46 struct ata_device *slave = &link->device[1];47 48 if (!ata_dev_enabled(master) || !ata_dev_enabled(slave))49 return ata_do_set_mode(link, r_failed_dev);50 51 if (memcmp(master->id + ATA_ID_FW_REV, slave->id + ATA_ID_FW_REV,52 ATA_ID_FW_REV_LEN + ATA_ID_PROD_LEN) == 0) {53 /* Suspicious match, but could be two cards from54 the same vendor - check serial */55 if (memcmp(master->id + ATA_ID_SERNO, slave->id + ATA_ID_SERNO,56 ATA_ID_SERNO_LEN) == 0 && master->id[ATA_ID_SERNO] >> 8) {57 ata_dev_warn(slave, "is a ghost device, ignoring\n");58 ata_dev_disable(slave);59 }60 }61 return ata_do_set_mode(link, r_failed_dev);62}63 64/**65 * pcmcia_set_mode_8bit - PCMCIA specific mode setup66 * @link: link67 * @r_failed_dev: Return pointer for failed device68 *69 * For the simple emulated 8bit stuff the less we do the better.70 */71 72static int pcmcia_set_mode_8bit(struct ata_link *link,73 struct ata_device **r_failed_dev)74{75 return 0;76}77 78/**79 * ata_data_xfer_8bit - Transfer data by 8bit PIO80 * @qc: queued command81 * @buf: data buffer82 * @buflen: buffer length83 * @rw: read/write84 *85 * Transfer data from/to the device data register by 8 bit PIO.86 *87 * LOCKING:88 * Inherited from caller.89 */90 91static unsigned int ata_data_xfer_8bit(struct ata_queued_cmd *qc,92 unsigned char *buf, unsigned int buflen, int rw)93{94 struct ata_port *ap = qc->dev->link->ap;95 96 if (rw == READ)97 ioread8_rep(ap->ioaddr.data_addr, buf, buflen);98 else99 iowrite8_rep(ap->ioaddr.data_addr, buf, buflen);100 101 return buflen;102}103 104/**105 * pcmcia_8bit_drain_fifo - Stock FIFO drain logic for SFF controllers106 * @qc: command107 *108 * Drain the FIFO and device of any stuck data following a command109 * failing to complete. In some cases this is necessary before a110 * reset will recover the device.111 *112 */113 114static void pcmcia_8bit_drain_fifo(struct ata_queued_cmd *qc)115{116 int count;117 struct ata_port *ap;118 119 /* We only need to flush incoming data when a command was running */120 if (qc == NULL || qc->dma_dir == DMA_TO_DEVICE)121 return;122 123 ap = qc->ap;124 125 /* Drain up to 64K of data before we give up this recovery method */126 for (count = 0; (ap->ops->sff_check_status(ap) & ATA_DRQ)127 && count++ < 65536;)128 ioread8(ap->ioaddr.data_addr);129 130 if (count)131 ata_port_warn(ap, "drained %d bytes to clear DRQ\n", count);132 133}134 135static const struct scsi_host_template pcmcia_sht = {136 ATA_PIO_SHT(DRV_NAME),137};138 139static struct ata_port_operations pcmcia_port_ops = {140 .inherits = &ata_sff_port_ops,141 .sff_data_xfer = ata_sff_data_xfer32,142 .cable_detect = ata_cable_40wire,143 .set_mode = pcmcia_set_mode,144};145 146static struct ata_port_operations pcmcia_8bit_port_ops = {147 .inherits = &ata_sff_port_ops,148 .sff_data_xfer = ata_data_xfer_8bit,149 .cable_detect = ata_cable_40wire,150 .set_mode = pcmcia_set_mode_8bit,151 .sff_drain_fifo = pcmcia_8bit_drain_fifo,152};153 154 155static int pcmcia_check_one_config(struct pcmcia_device *pdev, void *priv_data)156{157 int *is_kme = priv_data;158 159 if ((pdev->resource[0]->flags & IO_DATA_PATH_WIDTH)160 != IO_DATA_PATH_WIDTH_8) {161 pdev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;162 pdev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;163 }164 pdev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;165 pdev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;166 167 if (pdev->resource[1]->end) {168 pdev->resource[0]->end = 8;169 pdev->resource[1]->end = (*is_kme) ? 2 : 1;170 } else {171 if (pdev->resource[0]->end < 16)172 return -ENODEV;173 }174 175 return pcmcia_request_io(pdev);176}177 178/**179 * pcmcia_init_one - attach a PCMCIA interface180 * @pdev: pcmcia device181 *182 * Register a PCMCIA IDE interface. Such interfaces are PIO 0 and183 * shared IRQ.184 */185 186static int pcmcia_init_one(struct pcmcia_device *pdev)187{188 struct ata_host *host;189 struct ata_port *ap;190 int is_kme = 0, ret = -ENOMEM, p;191 unsigned long io_base, ctl_base;192 void __iomem *io_addr, *ctl_addr;193 int n_ports = 1;194 struct ata_port_operations *ops = &pcmcia_port_ops;195 196 /* Set up attributes in order to probe card and get resources */197 pdev->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO |198 CONF_AUTO_SET_VPP | CONF_AUTO_CHECK_VCC;199 200 /* See if we have a manufacturer identifier. Use it to set is_kme for201 vendor quirks */202 is_kme = ((pdev->manf_id == MANFID_KME) &&203 ((pdev->card_id == PRODID_KME_KXLC005_A) ||204 (pdev->card_id == PRODID_KME_KXLC005_B)));205 206 if (pcmcia_loop_config(pdev, pcmcia_check_one_config, &is_kme)) {207 pdev->config_flags &= ~CONF_AUTO_CHECK_VCC;208 if (pcmcia_loop_config(pdev, pcmcia_check_one_config, &is_kme))209 goto failed; /* No suitable config found */210 }211 io_base = pdev->resource[0]->start;212 if (pdev->resource[1]->end)213 ctl_base = pdev->resource[1]->start;214 else215 ctl_base = pdev->resource[0]->start + 0x0e;216 217 if (!pdev->irq)218 goto failed;219 220 ret = pcmcia_enable_device(pdev);221 if (ret)222 goto failed;223 224 /* iomap */225 ret = -ENOMEM;226 io_addr = devm_ioport_map(&pdev->dev, io_base, 8);227 ctl_addr = devm_ioport_map(&pdev->dev, ctl_base, 1);228 if (!io_addr || !ctl_addr)229 goto failed;230 231 /* Success. Disable the IRQ nIEN line, do quirks */232 iowrite8(0x02, ctl_addr);233 if (is_kme)234 iowrite8(0x81, ctl_addr + 0x01);235 236 /* FIXME: Could be more ports at base + 0x10 but we only deal with237 one right now */238 if (resource_size(pdev->resource[0]) >= 0x20)239 n_ports = 2;240 241 if (pdev->manf_id == 0x0097 && pdev->card_id == 0x1620)242 ops = &pcmcia_8bit_port_ops;243 /*244 * Having done the PCMCIA plumbing the ATA side is relatively245 * sane.246 */247 ret = -ENOMEM;248 host = ata_host_alloc(&pdev->dev, n_ports);249 if (!host)250 goto failed;251 252 for (p = 0; p < n_ports; p++) {253 ap = host->ports[p];254 255 ap->ops = ops;256 ap->pio_mask = ATA_PIO0; /* ISA so PIO 0 cycles */257 ap->flags |= ATA_FLAG_SLAVE_POSS;258 ap->ioaddr.cmd_addr = io_addr + 0x10 * p;259 ap->ioaddr.altstatus_addr = ctl_addr + 0x10 * p;260 ap->ioaddr.ctl_addr = ctl_addr + 0x10 * p;261 ata_sff_std_ports(&ap->ioaddr);262 263 ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", io_base, ctl_base);264 }265 266 /* activate */267 ret = ata_host_activate(host, pdev->irq, ata_sff_interrupt,268 IRQF_SHARED, &pcmcia_sht);269 if (ret)270 goto failed;271 272 pdev->priv = host;273 return 0;274 275failed:276 pcmcia_disable_device(pdev);277 return ret;278}279 280/**281 * pcmcia_remove_one - unplug an pcmcia interface282 * @pdev: pcmcia device283 *284 * A PCMCIA ATA device has been unplugged. Perform the needed285 * cleanup. Also called on module unload for any active devices.286 */287 288static void pcmcia_remove_one(struct pcmcia_device *pdev)289{290 struct ata_host *host = pdev->priv;291 292 if (host)293 ata_host_detach(host);294 295 pcmcia_disable_device(pdev);296}297 298static const struct pcmcia_device_id pcmcia_devices[] = {299 PCMCIA_DEVICE_FUNC_ID(4),300 PCMCIA_DEVICE_MANF_CARD(0x0000, 0x0000), /* Corsair */301 PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */302 PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000), /* I-O Data CFA */303 PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001), /* Mitsubishi CFA */304 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),305 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904),306 PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401), /* SanDisk CFA */307 PCMCIA_DEVICE_MANF_CARD(0x004f, 0x0000), /* Kingston */308 PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620), /* TI emulated */309 PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */310 PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),311 PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */312 PCMCIA_DEVICE_MANF_CARD(0x00f1, 0x0101), /* SanDisk High (>8G) CFA */313 PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */314 PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001),315 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100), /* Viking CFA */316 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar, Viking CFA */317 PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0),318 PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74),319 PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9),320 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591),321 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728),322 PCMCIA_DEVICE_PROD_ID12("CNF ", "CD-ROM", 0x46d7db81, 0x66536591),323 PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591),324 PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4),325 PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde),326 PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf),327 PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591),328 PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728),329 PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e),330 PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae),331 PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178),332 PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420),333 PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),334 PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),335 PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 1GB", 0x2e6d1829, 0x55d5bffb),336 PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 4GB", 0x2e6d1829, 0x531e7d10),337 PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e),338 PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2 ", 0x547e66dc, 0x8671043b),339 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149),340 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674),341 PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2 ", 0xe37be2b5, 0x8671043b),342 PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF300", 0x7ed2ad87, 0x7e9e78ee),343 PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c),344 PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79),345 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591),346 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728),347 PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1),348 PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883),349 PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d),350 PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6),351 PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003),352 PCMCIA_DEVICE_PROD_ID1("TRANSCEND 512M ", 0xd0909443),353 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF45", 0x709b1bf1, 0xf68b6f32),354 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1),355 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2),356 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8),357 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF133", 0x709b1bf1, 0x7558f133),358 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS8GCF133", 0x709b1bf1, 0xb2f89b47),359 PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),360 PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918),361 PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209),362 PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e),363 PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6),364 PCMCIA_DEVICE_PROD_ID2("Flash Card", 0x5a362506),365 PCMCIA_DEVICE_NULL,366};367 368MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices);369 370static struct pcmcia_driver pcmcia_driver = {371 .owner = THIS_MODULE,372 .name = DRV_NAME,373 .id_table = pcmcia_devices,374 .probe = pcmcia_init_one,375 .remove = pcmcia_remove_one,376};377module_pcmcia_driver(pcmcia_driver);378 379MODULE_AUTHOR("Alan Cox");380MODULE_DESCRIPTION("low-level driver for PCMCIA ATA");381MODULE_LICENSE("GPL");382MODULE_VERSION(DRV_VERSION);383