x86, apic: Fix spurious error interrupts triggering on all non-boot APs
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / ata / pata_pcmcia.c
blob1b392c9e853134ebe5180b61c88e6451252e198d
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>
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.
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.
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.
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.
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>
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>
44 #define DRV_NAME "pata_pcmcia"
45 #define DRV_VERSION "0.3.5"
48 * Private data structure to glue stuff together
51 struct ata_pcmcia_info {
52 struct pcmcia_device *pdev;
53 int ndev;
54 dev_node_t node;
57 /**
58 * pcmcia_set_mode - PCMCIA specific mode setup
59 * @link: link
60 * @r_failed_dev: Return pointer for failed device
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
68 static int pcmcia_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
70 struct ata_device *master = &link->device[0];
71 struct ata_device *slave = &link->device[1];
73 if (!ata_dev_enabled(master) || !ata_dev_enabled(slave))
74 return ata_do_set_mode(link, r_failed_dev);
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 /* Suspicious match, but could be two cards from
79 the same vendor - check serial */
80 if (memcmp(master->id + ATA_ID_SERNO, slave->id + ATA_ID_SERNO,
81 ATA_ID_SERNO_LEN) == 0 && master->id[ATA_ID_SERNO] >> 8) {
82 ata_dev_printk(slave, KERN_WARNING, "is a ghost device, ignoring.\n");
83 ata_dev_disable(slave);
86 return ata_do_set_mode(link, r_failed_dev);
89 /**
90 * pcmcia_set_mode_8bit - PCMCIA specific mode setup
91 * @link: link
92 * @r_failed_dev: Return pointer for failed device
94 * For the simple emulated 8bit stuff the less we do the better.
97 static int pcmcia_set_mode_8bit(struct ata_link *link,
98 struct ata_device **r_failed_dev)
100 return 0;
104 * ata_data_xfer_8bit - Transfer data by 8bit PIO
105 * @dev: device to target
106 * @buf: data buffer
107 * @buflen: buffer length
108 * @rw: read/write
110 * Transfer data from/to the device data register by 8 bit PIO.
112 * LOCKING:
113 * Inherited from caller.
116 static unsigned int ata_data_xfer_8bit(struct ata_device *dev,
117 unsigned char *buf, unsigned int buflen, int rw)
119 struct ata_port *ap = dev->link->ap;
121 if (rw == READ)
122 ioread8_rep(ap->ioaddr.data_addr, buf, buflen);
123 else
124 iowrite8_rep(ap->ioaddr.data_addr, buf, buflen);
126 return buflen;
130 * pcmcia_8bit_drain_fifo - Stock FIFO drain logic for SFF controllers
131 * @qc: command
133 * Drain the FIFO and device of any stuck data following a command
134 * failing to complete. In some cases this is neccessary before a
135 * reset will recover the device.
139 void pcmcia_8bit_drain_fifo(struct ata_queued_cmd *qc)
141 int count;
142 struct ata_port *ap;
144 /* We only need to flush incoming data when a command was running */
145 if (qc == NULL || qc->dma_dir == DMA_TO_DEVICE)
146 return;
148 ap = qc->ap;
150 /* Drain up to 64K of data before we give up this recovery method */
151 for (count = 0; (ap->ops->sff_check_status(ap) & ATA_DRQ)
152 && count++ < 65536;)
153 ioread8(ap->ioaddr.data_addr);
155 if (count)
156 ata_port_printk(ap, KERN_WARNING, "drained %d bytes to clear DRQ.\n",
157 count);
161 static struct scsi_host_template pcmcia_sht = {
162 ATA_PIO_SHT(DRV_NAME),
165 static struct ata_port_operations pcmcia_port_ops = {
166 .inherits = &ata_sff_port_ops,
167 .sff_data_xfer = ata_sff_data_xfer_noirq,
168 .cable_detect = ata_cable_40wire,
169 .set_mode = pcmcia_set_mode,
172 static struct ata_port_operations pcmcia_8bit_port_ops = {
173 .inherits = &ata_sff_port_ops,
174 .sff_data_xfer = ata_data_xfer_8bit,
175 .cable_detect = ata_cable_40wire,
176 .set_mode = pcmcia_set_mode_8bit,
177 .drain_fifo = pcmcia_8bit_drain_fifo,
181 struct pcmcia_config_check {
182 unsigned long ctl_base;
183 int skip_vcc;
184 int is_kme;
187 static int pcmcia_check_one_config(struct pcmcia_device *pdev,
188 cistpl_cftable_entry_t *cfg,
189 cistpl_cftable_entry_t *dflt,
190 unsigned int vcc,
191 void *priv_data)
193 struct pcmcia_config_check *stk = priv_data;
195 /* Check for matching Vcc, unless we're desperate */
196 if (!stk->skip_vcc) {
197 if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
198 if (vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000)
199 return -ENODEV;
200 } else if (dflt->vcc.present & (1 << CISTPL_POWER_VNOM)) {
201 if (vcc != dflt->vcc.param[CISTPL_POWER_VNOM] / 10000)
202 return -ENODEV;
206 if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
207 pdev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
208 else if (dflt->vpp1.present & (1 << CISTPL_POWER_VNOM))
209 pdev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM] / 10000;
211 if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) {
212 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io;
213 pdev->io.BasePort1 = io->win[0].base;
214 pdev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
215 if (!(io->flags & CISTPL_IO_16BIT))
216 pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
217 if (io->nwin == 2) {
218 pdev->io.NumPorts1 = 8;
219 pdev->io.BasePort2 = io->win[1].base;
220 pdev->io.NumPorts2 = (stk->is_kme) ? 2 : 1;
221 if (pcmcia_request_io(pdev, &pdev->io) != 0)
222 return -ENODEV;
223 stk->ctl_base = pdev->io.BasePort2;
224 } else if ((io->nwin == 1) && (io->win[0].len >= 16)) {
225 pdev->io.NumPorts1 = io->win[0].len;
226 pdev->io.NumPorts2 = 0;
227 if (pcmcia_request_io(pdev, &pdev->io) != 0)
228 return -ENODEV;
229 stk->ctl_base = pdev->io.BasePort1 + 0x0e;
230 } else
231 return -ENODEV;
232 /* If we've got this far, we're done */
233 return 0;
235 return -ENODEV;
239 * pcmcia_init_one - attach a PCMCIA interface
240 * @pdev: pcmcia device
242 * Register a PCMCIA IDE interface. Such interfaces are PIO 0 and
243 * shared IRQ.
246 static int pcmcia_init_one(struct pcmcia_device *pdev)
248 struct ata_host *host;
249 struct ata_port *ap;
250 struct ata_pcmcia_info *info;
251 struct pcmcia_config_check *stk = NULL;
252 int is_kme = 0, ret = -ENOMEM, p;
253 unsigned long io_base, ctl_base;
254 void __iomem *io_addr, *ctl_addr;
255 int n_ports = 1;
256 struct ata_port_operations *ops = &pcmcia_port_ops;
258 info = kzalloc(sizeof(*info), GFP_KERNEL);
259 if (info == NULL)
260 return -ENOMEM;
262 /* Glue stuff together. FIXME: We may be able to get rid of info with care */
263 info->pdev = pdev;
264 pdev->priv = info;
266 /* Set up attributes in order to probe card and get resources */
267 pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
268 pdev->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
269 pdev->io.IOAddrLines = 3;
270 pdev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
271 pdev->conf.Attributes = CONF_ENABLE_IRQ;
272 pdev->conf.IntType = INT_MEMORY_AND_IO;
274 /* See if we have a manufacturer identifier. Use it to set is_kme for
275 vendor quirks */
276 is_kme = ((pdev->manf_id == MANFID_KME) &&
277 ((pdev->card_id == PRODID_KME_KXLC005_A) ||
278 (pdev->card_id == PRODID_KME_KXLC005_B)));
280 /* Allocate resoure probing structures */
282 stk = kzalloc(sizeof(*stk), GFP_KERNEL);
283 if (!stk)
284 goto out1;
285 stk->is_kme = is_kme;
286 stk->skip_vcc = io_base = ctl_base = 0;
288 if (pcmcia_loop_config(pdev, pcmcia_check_one_config, stk)) {
289 stk->skip_vcc = 1;
290 if (pcmcia_loop_config(pdev, pcmcia_check_one_config, stk))
291 goto failed; /* No suitable config found */
293 io_base = pdev->io.BasePort1;
294 ctl_base = stk->ctl_base;
295 ret = pcmcia_request_irq(pdev, &pdev->irq);
296 if (ret)
297 goto failed;
299 ret = pcmcia_request_configuration(pdev, &pdev->conf);
300 if (ret)
301 goto failed;
303 /* iomap */
304 ret = -ENOMEM;
305 io_addr = devm_ioport_map(&pdev->dev, io_base, 8);
306 ctl_addr = devm_ioport_map(&pdev->dev, ctl_base, 1);
307 if (!io_addr || !ctl_addr)
308 goto failed;
310 /* Success. Disable the IRQ nIEN line, do quirks */
311 iowrite8(0x02, ctl_addr);
312 if (is_kme)
313 iowrite8(0x81, ctl_addr + 0x01);
315 /* FIXME: Could be more ports at base + 0x10 but we only deal with
316 one right now */
317 if (pdev->io.NumPorts1 >= 0x20)
318 n_ports = 2;
320 if (pdev->manf_id == 0x0097 && pdev->card_id == 0x1620)
321 ops = &pcmcia_8bit_port_ops;
323 * Having done the PCMCIA plumbing the ATA side is relatively
324 * sane.
326 ret = -ENOMEM;
327 host = ata_host_alloc(&pdev->dev, n_ports);
328 if (!host)
329 goto failed;
331 for (p = 0; p < n_ports; p++) {
332 ap = host->ports[p];
334 ap->ops = ops;
335 ap->pio_mask = ATA_PIO0; /* ISA so PIO 0 cycles */
336 ap->flags |= ATA_FLAG_SLAVE_POSS;
337 ap->ioaddr.cmd_addr = io_addr + 0x10 * p;
338 ap->ioaddr.altstatus_addr = ctl_addr + 0x10 * p;
339 ap->ioaddr.ctl_addr = ctl_addr + 0x10 * p;
340 ata_sff_std_ports(&ap->ioaddr);
342 ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", io_base, ctl_base);
345 /* activate */
346 ret = ata_host_activate(host, pdev->irq.AssignedIRQ, ata_sff_interrupt,
347 IRQF_SHARED, &pcmcia_sht);
348 if (ret)
349 goto failed;
351 info->ndev = 1;
352 kfree(stk);
353 return 0;
355 failed:
356 kfree(stk);
357 info->ndev = 0;
358 pcmcia_disable_device(pdev);
359 out1:
360 kfree(info);
361 return ret;
365 * pcmcia_remove_one - unplug an pcmcia interface
366 * @pdev: pcmcia device
368 * A PCMCIA ATA device has been unplugged. Perform the needed
369 * cleanup. Also called on module unload for any active devices.
372 static void pcmcia_remove_one(struct pcmcia_device *pdev)
374 struct ata_pcmcia_info *info = pdev->priv;
375 struct device *dev = &pdev->dev;
377 if (info != NULL) {
378 /* If we have attached the device to the ATA layer, detach it */
379 if (info->ndev) {
380 struct ata_host *host = dev_get_drvdata(dev);
381 ata_host_detach(host);
383 info->ndev = 0;
384 pdev->priv = NULL;
386 pcmcia_disable_device(pdev);
387 kfree(info);
390 static struct pcmcia_device_id pcmcia_devices[] = {
391 PCMCIA_DEVICE_FUNC_ID(4),
392 PCMCIA_DEVICE_MANF_CARD(0x0000, 0x0000), /* Corsair */
393 PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */
394 PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000), /* I-O Data CFA */
395 PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001), /* Mitsubishi CFA */
396 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
397 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904),
398 PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401), /* SanDisk CFA */
399 PCMCIA_DEVICE_MANF_CARD(0x004f, 0x0000), /* Kingston */
400 PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620), /* TI emulated */
401 PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */
402 PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),
403 PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */
404 PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */
405 PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001),
406 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100), /* Viking CFA */
407 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar, Viking CFA */
408 PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0),
409 PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74),
410 PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9),
411 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591),
412 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728),
413 PCMCIA_DEVICE_PROD_ID12("CNF ", "CD-ROM", 0x46d7db81, 0x66536591),
414 PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591),
415 PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4),
416 PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde),
417 PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf),
418 PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591),
419 PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728),
420 PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e),
421 PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae),
422 PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178),
423 PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420),
424 PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
425 PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
426 PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e),
427 PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2 ", 0x547e66dc, 0x8671043b),
428 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149),
429 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674),
430 PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2 ", 0xe37be2b5, 0x8671043b),
431 PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF300", 0x7ed2ad87, 0x7e9e78ee),
432 PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c),
433 PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79),
434 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591),
435 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728),
436 PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1),
437 PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883),
438 PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d),
439 PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6),
440 PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003),
441 PCMCIA_DEVICE_PROD_ID1("TRANSCEND 512M ", 0xd0909443),
442 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF45", 0x709b1bf1, 0xf68b6f32),
443 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1),
444 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2),
445 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8),
446 PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),
447 PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918),
448 PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209),
449 PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e),
450 PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6),
451 PCMCIA_DEVICE_PROD_ID2("Flash Card", 0x5a362506),
452 PCMCIA_DEVICE_NULL,
455 MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices);
457 static struct pcmcia_driver pcmcia_driver = {
458 .owner = THIS_MODULE,
459 .drv = {
460 .name = DRV_NAME,
462 .id_table = pcmcia_devices,
463 .probe = pcmcia_init_one,
464 .remove = pcmcia_remove_one,
467 static int __init pcmcia_init(void)
469 return pcmcia_register_driver(&pcmcia_driver);
472 static void __exit pcmcia_exit(void)
474 pcmcia_unregister_driver(&pcmcia_driver);
477 MODULE_AUTHOR("Alan Cox");
478 MODULE_DESCRIPTION("low-level driver for PCMCIA ATA");
479 MODULE_LICENSE("GPL");
480 MODULE_VERSION(DRV_VERSION);
482 module_init(pcmcia_init);
483 module_exit(pcmcia_exit);