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 | |
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(dev: master) || !ata_dev_enabled(dev: slave)) |
49 | return ata_do_set_mode(link, r_failed_dev); |
50 | |
51 | if (memcmp(p: master->id + ATA_ID_FW_REV, q: slave->id + ATA_ID_FW_REV, |
52 | size: 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(p: master->id + ATA_ID_SERNO, q: slave->id + ATA_ID_SERNO, |
56 | size: 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(adev: 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 | |
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 | |
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(port: ap->ioaddr.data_addr, buf, count: buflen); |
98 | else |
99 | iowrite8_rep(port: ap->ioaddr.data_addr, buf, count: 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 | |
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 | |
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(p_dev: 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 | |
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(p_dev: pdev, conf_check: pcmcia_check_one_config, priv_data: &is_kme)) { |
207 | pdev->config_flags &= ~CONF_AUTO_CHECK_VCC; |
208 | if (pcmcia_loop_config(p_dev: pdev, conf_check: pcmcia_check_one_config, priv_data: &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(p_dev: pdev); |
221 | if (ret) |
222 | goto failed; |
223 | |
224 | /* iomap */ |
225 | ret = -ENOMEM; |
226 | io_addr = devm_ioport_map(dev: &pdev->dev, port: io_base, nr: 8); |
227 | ctl_addr = devm_ioport_map(dev: &pdev->dev, port: ctl_base, nr: 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(res: 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(dev: &pdev->dev, max_ports: 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(ioaddr: &ap->ioaddr); |
262 | |
263 | ata_port_desc(ap, fmt: "cmd 0x%lx ctl 0x%lx" , io_base, ctl_base); |
264 | } |
265 | |
266 | /* activate */ |
267 | ret = ata_host_activate(host, irq: pdev->irq, irq_handler: ata_sff_interrupt, |
268 | IRQF_SHARED, sht: &pcmcia_sht); |
269 | if (ret) |
270 | goto failed; |
271 | |
272 | pdev->priv = host; |
273 | return 0; |
274 | |
275 | failed: |
276 | pcmcia_disable_device(p_dev: 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 | |
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(p_dev: 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 | |