1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
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 Juszkiewicz
6 * <openembedded@hrw.one.pl>
7 *
8 * Heavily based upon ide-cs.c
9 * The initial developer of the original code is David A. Hinds
10 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
11 * 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 setup
34 * @link: link
35 * @r_failed_dev: Return pointer for failed device
36 *
37 * Perform the tuning and setup of the devices and timings, which
38 * for PCMCIA is the same as any other controller. We wrap it however
39 * as we need to spot hardware with incorrect or missing master/slave
40 * decode, which alas is embarrassingly common in the PC world
41 */
42
pcmcia_set_mode(struct ata_link * link,struct ata_device ** r_failed_dev)43 static 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 from
54 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 setup
66 * @link: link
67 * @r_failed_dev: Return pointer for failed device
68 *
69 * For the simple emulated 8bit stuff the less we do the better.
70 */
71
pcmcia_set_mode_8bit(struct ata_link * link,struct ata_device ** r_failed_dev)72 static 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 PIO
80 * @qc: queued command
81 * @buf: data buffer
82 * @buflen: buffer length
83 * @rw: read/write
84 *
85 * Transfer data from/to the device data register by 8 bit PIO.
86 *
87 * LOCKING:
88 * Inherited from caller.
89 */
90
ata_data_xfer_8bit(struct ata_queued_cmd * qc,unsigned char * buf,unsigned int buflen,int rw)91 static 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 else
99 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 controllers
106 * @qc: command
107 *
108 * Drain the FIFO and device of any stuck data following a command
109 * failing to complete. In some cases this is necessary before a
110 * reset will recover the device.
111 *
112 */
113
pcmcia_8bit_drain_fifo(struct ata_queued_cmd * qc)114 static 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
135 static const struct scsi_host_template pcmcia_sht = {
136 ATA_PIO_SHT(DRV_NAME),
137 };
138
139 static 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
146 static 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
pcmcia_check_one_config(struct pcmcia_device * pdev,void * priv_data)155 static 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 interface
180 * @pdev: pcmcia device
181 *
182 * Register a PCMCIA IDE interface. Such interfaces are PIO 0 and
183 * shared IRQ.
184 */
185
pcmcia_init_one(struct pcmcia_device * pdev)186 static 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 for
201 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 else
215 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 with
237 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 relatively
245 * 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
275 failed:
276 pcmcia_disable_device(pdev);
277 return ret;
278 }
279
280 /**
281 * pcmcia_remove_one - unplug an pcmcia interface
282 * @pdev: pcmcia device
283 *
284 * A PCMCIA ATA device has been unplugged. Perform the needed
285 * cleanup. Also called on module unload for any active devices.
286 */
287
pcmcia_remove_one(struct pcmcia_device * pdev)288 static 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
298 static 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
368 MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices);
369
370 static 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 };
377 module_pcmcia_driver(pcmcia_driver);
378
379 MODULE_AUTHOR("Alan Cox");
380 MODULE_DESCRIPTION("low-level driver for PCMCIA ATA");
381 MODULE_LICENSE("GPL");
382 MODULE_VERSION(DRV_VERSION);
383