Root/drivers/ata/pata_pcmcia.c

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/init.h>
30#include <linux/blkdev.h>
31#include <linux/delay.h>
32#include <linux/slab.h>
33#include <scsi/scsi_host.h>
34#include <linux/ata.h>
35#include <linux/libata.h>
36
37#include <pcmcia/cistpl.h>
38#include <pcmcia/ds.h>
39#include <pcmcia/cisreg.h>
40#include <pcmcia/ciscode.h>
41
42
43#define DRV_NAME "pata_pcmcia"
44#define DRV_VERSION "0.3.5"
45
46/**
47 * pcmcia_set_mode - PCMCIA specific mode setup
48 * @link: link
49 * @r_failed_dev: Return pointer for failed device
50 *
51 * Perform the tuning and setup of the devices and timings, which
52 * for PCMCIA is the same as any other controller. We wrap it however
53 * as we need to spot hardware with incorrect or missing master/slave
54 * decode, which alas is embarrassingly common in the PC world
55 */
56
57static int pcmcia_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
58{
59    struct ata_device *master = &link->device[0];
60    struct ata_device *slave = &link->device[1];
61
62    if (!ata_dev_enabled(master) || !ata_dev_enabled(slave))
63        return ata_do_set_mode(link, r_failed_dev);
64
65    if (memcmp(master->id + ATA_ID_FW_REV, slave->id + ATA_ID_FW_REV,
66               ATA_ID_FW_REV_LEN + ATA_ID_PROD_LEN) == 0) {
67        /* Suspicious match, but could be two cards from
68           the same vendor - check serial */
69        if (memcmp(master->id + ATA_ID_SERNO, slave->id + ATA_ID_SERNO,
70               ATA_ID_SERNO_LEN) == 0 && master->id[ATA_ID_SERNO] >> 8) {
71            ata_dev_warn(slave, "is a ghost device, ignoring\n");
72            ata_dev_disable(slave);
73        }
74    }
75    return ata_do_set_mode(link, r_failed_dev);
76}
77
78/**
79 * pcmcia_set_mode_8bit - PCMCIA specific mode setup
80 * @link: link
81 * @r_failed_dev: Return pointer for failed device
82 *
83 * For the simple emulated 8bit stuff the less we do the better.
84 */
85
86static int pcmcia_set_mode_8bit(struct ata_link *link,
87                struct ata_device **r_failed_dev)
88{
89    return 0;
90}
91
92/**
93 * ata_data_xfer_8bit - Transfer data by 8bit PIO
94 * @dev: device to target
95 * @buf: data buffer
96 * @buflen: buffer length
97 * @rw: read/write
98 *
99 * Transfer data from/to the device data register by 8 bit PIO.
100 *
101 * LOCKING:
102 * Inherited from caller.
103 */
104
105static unsigned int ata_data_xfer_8bit(struct ata_device *dev,
106                unsigned char *buf, unsigned int buflen, int rw)
107{
108    struct ata_port *ap = dev->link->ap;
109
110    if (rw == READ)
111        ioread8_rep(ap->ioaddr.data_addr, buf, buflen);
112    else
113        iowrite8_rep(ap->ioaddr.data_addr, buf, buflen);
114
115    return buflen;
116}
117
118/**
119 * pcmcia_8bit_drain_fifo - Stock FIFO drain logic for SFF controllers
120 * @qc: command
121 *
122 * Drain the FIFO and device of any stuck data following a command
123 * failing to complete. In some cases this is necessary before a
124 * reset will recover the device.
125 *
126 */
127
128static void pcmcia_8bit_drain_fifo(struct ata_queued_cmd *qc)
129{
130    int count;
131    struct ata_port *ap;
132
133    /* We only need to flush incoming data when a command was running */
134    if (qc == NULL || qc->dma_dir == DMA_TO_DEVICE)
135        return;
136
137    ap = qc->ap;
138
139    /* Drain up to 64K of data before we give up this recovery method */
140    for (count = 0; (ap->ops->sff_check_status(ap) & ATA_DRQ)
141                            && count++ < 65536;)
142        ioread8(ap->ioaddr.data_addr);
143
144    if (count)
145        ata_port_warn(ap, "drained %d bytes to clear DRQ\n", count);
146
147}
148
149static struct scsi_host_template pcmcia_sht = {
150    ATA_PIO_SHT(DRV_NAME),
151};
152
153static struct ata_port_operations pcmcia_port_ops = {
154    .inherits = &ata_sff_port_ops,
155    .sff_data_xfer = ata_sff_data_xfer_noirq,
156    .cable_detect = ata_cable_40wire,
157    .set_mode = pcmcia_set_mode,
158};
159
160static struct ata_port_operations pcmcia_8bit_port_ops = {
161    .inherits = &ata_sff_port_ops,
162    .sff_data_xfer = ata_data_xfer_8bit,
163    .cable_detect = ata_cable_40wire,
164    .set_mode = pcmcia_set_mode_8bit,
165    .sff_drain_fifo = pcmcia_8bit_drain_fifo,
166};
167
168
169static int pcmcia_check_one_config(struct pcmcia_device *pdev, void *priv_data)
170{
171    int *is_kme = priv_data;
172
173    if ((pdev->resource[0]->flags & IO_DATA_PATH_WIDTH)
174        != IO_DATA_PATH_WIDTH_8) {
175        pdev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
176        pdev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
177    }
178    pdev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
179    pdev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
180
181    if (pdev->resource[1]->end) {
182        pdev->resource[0]->end = 8;
183        pdev->resource[1]->end = (*is_kme) ? 2 : 1;
184    } else {
185        if (pdev->resource[0]->end < 16)
186            return -ENODEV;
187    }
188
189    return pcmcia_request_io(pdev);
190}
191
192/**
193 * pcmcia_init_one - attach a PCMCIA interface
194 * @pdev: pcmcia device
195 *
196 * Register a PCMCIA IDE interface. Such interfaces are PIO 0 and
197 * shared IRQ.
198 */
199
200static int pcmcia_init_one(struct pcmcia_device *pdev)
201{
202    struct ata_host *host;
203    struct ata_port *ap;
204    int is_kme = 0, ret = -ENOMEM, p;
205    unsigned long io_base, ctl_base;
206    void __iomem *io_addr, *ctl_addr;
207    int n_ports = 1;
208    struct ata_port_operations *ops = &pcmcia_port_ops;
209
210    /* Set up attributes in order to probe card and get resources */
211    pdev->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO |
212        CONF_AUTO_SET_VPP | CONF_AUTO_CHECK_VCC;
213
214    /* See if we have a manufacturer identifier. Use it to set is_kme for
215       vendor quirks */
216    is_kme = ((pdev->manf_id == MANFID_KME) &&
217          ((pdev->card_id == PRODID_KME_KXLC005_A) ||
218           (pdev->card_id == PRODID_KME_KXLC005_B)));
219
220    if (pcmcia_loop_config(pdev, pcmcia_check_one_config, &is_kme)) {
221        pdev->config_flags &= ~CONF_AUTO_CHECK_VCC;
222        if (pcmcia_loop_config(pdev, pcmcia_check_one_config, &is_kme))
223            goto failed; /* No suitable config found */
224    }
225    io_base = pdev->resource[0]->start;
226    if (pdev->resource[1]->end)
227        ctl_base = pdev->resource[1]->start;
228    else
229        ctl_base = pdev->resource[0]->start + 0x0e;
230
231    if (!pdev->irq)
232        goto failed;
233
234    ret = pcmcia_enable_device(pdev);
235    if (ret)
236        goto failed;
237
238    /* iomap */
239    ret = -ENOMEM;
240    io_addr = devm_ioport_map(&pdev->dev, io_base, 8);
241    ctl_addr = devm_ioport_map(&pdev->dev, ctl_base, 1);
242    if (!io_addr || !ctl_addr)
243        goto failed;
244
245    /* Success. Disable the IRQ nIEN line, do quirks */
246    iowrite8(0x02, ctl_addr);
247    if (is_kme)
248        iowrite8(0x81, ctl_addr + 0x01);
249
250    /* FIXME: Could be more ports at base + 0x10 but we only deal with
251       one right now */
252    if (resource_size(pdev->resource[0]) >= 0x20)
253        n_ports = 2;
254
255    if (pdev->manf_id == 0x0097 && pdev->card_id == 0x1620)
256        ops = &pcmcia_8bit_port_ops;
257    /*
258     * Having done the PCMCIA plumbing the ATA side is relatively
259     * sane.
260     */
261    ret = -ENOMEM;
262    host = ata_host_alloc(&pdev->dev, n_ports);
263    if (!host)
264        goto failed;
265
266    for (p = 0; p < n_ports; p++) {
267        ap = host->ports[p];
268
269        ap->ops = ops;
270        ap->pio_mask = ATA_PIO0; /* ISA so PIO 0 cycles */
271        ap->flags |= ATA_FLAG_SLAVE_POSS;
272        ap->ioaddr.cmd_addr = io_addr + 0x10 * p;
273        ap->ioaddr.altstatus_addr = ctl_addr + 0x10 * p;
274        ap->ioaddr.ctl_addr = ctl_addr + 0x10 * p;
275        ata_sff_std_ports(&ap->ioaddr);
276
277        ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", io_base, ctl_base);
278    }
279
280    /* activate */
281    ret = ata_host_activate(host, pdev->irq, ata_sff_interrupt,
282                IRQF_SHARED, &pcmcia_sht);
283    if (ret)
284        goto failed;
285
286    pdev->priv = host;
287    return 0;
288
289failed:
290    pcmcia_disable_device(pdev);
291    return ret;
292}
293
294/**
295 * pcmcia_remove_one - unplug an pcmcia interface
296 * @pdev: pcmcia device
297 *
298 * A PCMCIA ATA device has been unplugged. Perform the needed
299 * cleanup. Also called on module unload for any active devices.
300 */
301
302static void pcmcia_remove_one(struct pcmcia_device *pdev)
303{
304    struct ata_host *host = pdev->priv;
305
306    if (host)
307        ata_host_detach(host);
308
309    pcmcia_disable_device(pdev);
310}
311
312static const struct pcmcia_device_id pcmcia_devices[] = {
313    PCMCIA_DEVICE_FUNC_ID(4),
314    PCMCIA_DEVICE_MANF_CARD(0x0000, 0x0000), /* Corsair */
315    PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */
316    PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000), /* I-O Data CFA */
317    PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001), /* Mitsubishi CFA */
318    PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
319    PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904),
320    PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401), /* SanDisk CFA */
321    PCMCIA_DEVICE_MANF_CARD(0x004f, 0x0000), /* Kingston */
322    PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620), /* TI emulated */
323    PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */
324    PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),
325    PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */
326    PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */
327    PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001),
328    PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100), /* Viking CFA */
329    PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar, Viking CFA */
330    PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0),
331    PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74),
332    PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9),
333    PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591),
334    PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728),
335    PCMCIA_DEVICE_PROD_ID12("CNF ", "CD-ROM", 0x46d7db81, 0x66536591),
336    PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591),
337    PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4),
338    PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde),
339    PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf),
340    PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591),
341    PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728),
342    PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e),
343    PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae),
344    PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178),
345    PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420),
346    PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
347    PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
348    PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 1GB", 0x2e6d1829, 0x55d5bffb),
349    PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 4GB", 0x2e6d1829, 0x531e7d10),
350    PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e),
351    PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2 ", 0x547e66dc, 0x8671043b),
352    PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149),
353    PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674),
354    PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2 ", 0xe37be2b5, 0x8671043b),
355    PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF300", 0x7ed2ad87, 0x7e9e78ee),
356    PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c),
357    PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79),
358    PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591),
359    PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728),
360    PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1),
361    PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883),
362    PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d),
363    PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6),
364    PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003),
365    PCMCIA_DEVICE_PROD_ID1("TRANSCEND 512M ", 0xd0909443),
366    PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF45", 0x709b1bf1, 0xf68b6f32),
367    PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1),
368    PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2),
369    PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8),
370    PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF133", 0x709b1bf1, 0x7558f133),
371    PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS8GCF133", 0x709b1bf1, 0xb2f89b47),
372    PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),
373    PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918),
374    PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209),
375    PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e),
376    PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6),
377    PCMCIA_DEVICE_PROD_ID2("Flash Card", 0x5a362506),
378    PCMCIA_DEVICE_NULL,
379};
380
381MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices);
382
383static struct pcmcia_driver pcmcia_driver = {
384    .owner = THIS_MODULE,
385    .name = DRV_NAME,
386    .id_table = pcmcia_devices,
387    .probe = pcmcia_init_one,
388    .remove = pcmcia_remove_one,
389};
390
391static int __init pcmcia_init(void)
392{
393    return pcmcia_register_driver(&pcmcia_driver);
394}
395
396static void __exit pcmcia_exit(void)
397{
398    pcmcia_unregister_driver(&pcmcia_driver);
399}
400
401MODULE_AUTHOR("Alan Cox");
402MODULE_DESCRIPTION("low-level driver for PCMCIA ATA");
403MODULE_LICENSE("GPL");
404MODULE_VERSION(DRV_VERSION);
405
406module_init(pcmcia_init);
407module_exit(pcmcia_exit);
408

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