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

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