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ACPI: thinkpad-acpi: preserve radio state across shutdown
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / parport / parport_serial.c
blob101ed49a2d15609937acbcf964274ed3f12d8360
1 /*
2 * Support for common PCI multi-I/O cards (which is most of them)
3 *
4 * Copyright (C) 2001 Tim Waugh <twaugh@redhat.com>
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
11 *
12 * Multi-function PCI cards are supposed to present separate logical
13 * devices on the bus. A common thing to do seems to be to just use
14 * one logical device with lots of base address registers for both
15 * parallel ports and serial ports. This driver is for dealing with
16 * that.
17 *
18 */
19
20 #include <linux/types.h>
21 #include <linux/module.h>
22 #include <linux/init.h>
23 #include <linux/pci.h>
24 #include <linux/parport.h>
25 #include <linux/parport_pc.h>
26 #include <linux/8250_pci.h>
27
28 enum parport_pc_pci_cards {
29 titan_110l = 0,
30 titan_210l,
31 netmos_9xx5_combo,
32 netmos_9855,
33 avlab_1s1p,
34 avlab_1s2p,
35 avlab_2s1p,
36 siig_1s1p_10x,
37 siig_2s1p_10x,
38 siig_2p1s_20x,
39 siig_1s1p_20x,
40 siig_2s1p_20x,
41 };
42
43 /* each element directly indexed from enum list, above */
44 struct parport_pc_pci {
45 int numports;
46 struct { /* BAR (base address registers) numbers in the config
47 space header */
48 int lo;
49 int hi; /* -1 if not there, >6 for offset-method (max
50 BAR is 6) */
51 } addr[4];
52
53 /* If set, this is called immediately after pci_enable_device.
54 * If it returns non-zero, no probing will take place and the
55 * ports will not be used. */
56 int (*preinit_hook) (struct pci_dev *pdev, struct parport_pc_pci *card,
57 int autoirq, int autodma);
58
59 /* If set, this is called after probing for ports. If 'failed'
60 * is non-zero we couldn't use any of the ports. */
61 void (*postinit_hook) (struct pci_dev *pdev,
62 struct parport_pc_pci *card, int failed);
63 };
64
65 static int __devinit netmos_parallel_init(struct pci_dev *dev, struct parport_pc_pci *card, int autoirq, int autodma)
66 {
67 /*
68 * Netmos uses the subdevice ID to indicate the number of parallel
69 * and serial ports. The form is 0x00PS, where <P> is the number of
70 * parallel ports and <S> is the number of serial ports.
71 */
72 card->numports = (dev->subsystem_device & 0xf0) >> 4;
73 if (card->numports > ARRAY_SIZE(card->addr))
74 card->numports = ARRAY_SIZE(card->addr);
75 return 0;
76 }
77
78 static struct parport_pc_pci cards[] __devinitdata = {
79 /* titan_110l */ { 1, { { 3, -1 }, } },
80 /* titan_210l */ { 1, { { 3, -1 }, } },
81 /* netmos_9xx5_combo */ { 1, { { 2, -1 }, }, netmos_parallel_init },
82 /* netmos_9855 */ { 1, { { 2, -1 }, }, netmos_parallel_init },
83 /* avlab_1s1p */ { 1, { { 1, 2}, } },
84 /* avlab_1s2p */ { 2, { { 1, 2}, { 3, 4 },} },
85 /* avlab_2s1p */ { 1, { { 2, 3}, } },
86 /* siig_1s1p_10x */ { 1, { { 3, 4 }, } },
87 /* siig_2s1p_10x */ { 1, { { 4, 5 }, } },
88 /* siig_2p1s_20x */ { 2, { { 1, 2 }, { 3, 4 }, } },
89 /* siig_1s1p_20x */ { 1, { { 1, 2 }, } },
90 /* siig_2s1p_20x */ { 1, { { 2, 3 }, } },
91 };
92
93 static struct pci_device_id parport_serial_pci_tbl[] = {
94 /* PCI cards */
95 { PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_110L,
96 PCI_ANY_ID, PCI_ANY_ID, 0, 0, titan_110l },
97 { PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_210L,
98 PCI_ANY_ID, PCI_ANY_ID, 0, 0, titan_210l },
99 { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9735,
100 PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
101 { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9745,
102 PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
103 { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9835,
104 PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
105 { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9845,
106 PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
107 { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9855,
108 PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9855 },
109 /* PCI_VENDOR_ID_AVLAB/Intek21 has another bunch of cards ...*/
110 { PCI_VENDOR_ID_AFAVLAB, 0x2110,
111 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p },
112 { PCI_VENDOR_ID_AFAVLAB, 0x2111,
113 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p },
114 { PCI_VENDOR_ID_AFAVLAB, 0x2112,
115 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p },
116 { PCI_VENDOR_ID_AFAVLAB, 0x2140,
117 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p },
118 { PCI_VENDOR_ID_AFAVLAB, 0x2141,
119 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p },
120 { PCI_VENDOR_ID_AFAVLAB, 0x2142,
121 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p },
122 { PCI_VENDOR_ID_AFAVLAB, 0x2160,
123 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p },
124 { PCI_VENDOR_ID_AFAVLAB, 0x2161,
125 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p },
126 { PCI_VENDOR_ID_AFAVLAB, 0x2162,
127 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p },
128 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_550,
129 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
130 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_650,
131 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
132 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_850,
133 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
134 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_550,
135 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
136 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_650,
137 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
138 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_850,
139 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
140 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_550,
141 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
142 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_650,
143 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
144 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_850,
145 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
146 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_550,
147 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
148 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_650,
149 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_20x },
150 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_850,
151 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_20x },
152 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_550,
153 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
154 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_650,
155 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
156 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_850,
157 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
158
159 { 0, } /* terminate list */
160 };
161 MODULE_DEVICE_TABLE(pci,parport_serial_pci_tbl);
162
163 /*
164 * This table describes the serial "geometry" of these boards. Any
165 * quirks for these can be found in drivers/serial/8250_pci.c
166 *
167 * Cards not tested are marked n/t
168 * If you have one of these cards and it works for you, please tell me..
169 */
170 static struct pciserial_board pci_parport_serial_boards[] __devinitdata = {
171 [titan_110l] = {
172 .flags = FL_BASE1 | FL_BASE_BARS,
173 .num_ports = 1,
174 .base_baud = 921600,
175 .uart_offset = 8,
176 },
177 [titan_210l] = {
178 .flags = FL_BASE1 | FL_BASE_BARS,
179 .num_ports = 2,
180 .base_baud = 921600,
181 .uart_offset = 8,
182 },
183 [netmos_9xx5_combo] = {
184 .flags = FL_BASE0 | FL_BASE_BARS,
185 .num_ports = 1,
186 .base_baud = 115200,
187 .uart_offset = 8,
188 },
189 [netmos_9855] = {
190 .flags = FL_BASE4 | FL_BASE_BARS,
191 .num_ports = 1,
192 .base_baud = 115200,
193 .uart_offset = 8,
194 },
195 [avlab_1s1p] = { /* n/t */
196 .flags = FL_BASE0 | FL_BASE_BARS,
197 .num_ports = 1,
198 .base_baud = 115200,
199 .uart_offset = 8,
200 },
201 [avlab_1s2p] = { /* n/t */
202 .flags = FL_BASE0 | FL_BASE_BARS,
203 .num_ports = 1,
204 .base_baud = 115200,
205 .uart_offset = 8,
206 },
207 [avlab_2s1p] = { /* n/t */
208 .flags = FL_BASE0 | FL_BASE_BARS,
209 .num_ports = 2,
210 .base_baud = 115200,
211 .uart_offset = 8,
212 },
213 [siig_1s1p_10x] = {
214 .flags = FL_BASE2,
215 .num_ports = 1,
216 .base_baud = 460800,
217 .uart_offset = 8,
218 },
219 [siig_2s1p_10x] = {
220 .flags = FL_BASE2,
221 .num_ports = 1,
222 .base_baud = 921600,
223 .uart_offset = 8,
224 },
225 [siig_2p1s_20x] = {
226 .flags = FL_BASE0,
227 .num_ports = 1,
228 .base_baud = 921600,
229 .uart_offset = 8,
230 },
231 [siig_1s1p_20x] = {
232 .flags = FL_BASE0,
233 .num_ports = 1,
234 .base_baud = 921600,
235 .uart_offset = 8,
236 },
237 [siig_2s1p_20x] = {
238 .flags = FL_BASE0,
239 .num_ports = 1,
240 .base_baud = 921600,
241 .uart_offset = 8,
242 },
243 };
244
245 struct parport_serial_private {
246 struct serial_private *serial;
247 int num_par;
248 struct parport *port[PARPORT_MAX];
249 struct parport_pc_pci par;
250 };
251
252 /* Register the serial port(s) of a PCI card. */
253 static int __devinit serial_register (struct pci_dev *dev,
254 const struct pci_device_id *id)
255 {
256 struct parport_serial_private *priv = pci_get_drvdata (dev);
257 struct pciserial_board *board;
258 struct serial_private *serial;
259
260 board = &pci_parport_serial_boards[id->driver_data];
261 serial = pciserial_init_ports(dev, board);
262
263 if (IS_ERR(serial))
264 return PTR_ERR(serial);
265
266 priv->serial = serial;
267 return 0;
268 }
269
270 /* Register the parallel port(s) of a PCI card. */
271 static int __devinit parport_register (struct pci_dev *dev,
272 const struct pci_device_id *id)
273 {
274 struct parport_pc_pci *card;
275 struct parport_serial_private *priv = pci_get_drvdata (dev);
276 int n, success = 0;
277
278 priv->par = cards[id->driver_data];
279 card = &priv->par;
280 if (card->preinit_hook &&
281 card->preinit_hook (dev, card, PARPORT_IRQ_NONE, PARPORT_DMA_NONE))
282 return -ENODEV;
283
284 for (n = 0; n < card->numports; n++) {
285 struct parport *port;
286 int lo = card->addr[n].lo;
287 int hi = card->addr[n].hi;
288 unsigned long io_lo, io_hi;
289
290 if (priv->num_par == ARRAY_SIZE (priv->port)) {
291 printk (KERN_WARNING
292 "parport_serial: %s: only %zu parallel ports "
293 "supported (%d reported)\n", pci_name (dev),
294 ARRAY_SIZE(priv->port), card->numports);
295 break;
296 }
297
298 io_lo = pci_resource_start (dev, lo);
299 io_hi = 0;
300 if ((hi >= 0) && (hi <= 6))
301 io_hi = pci_resource_start (dev, hi);
302 else if (hi > 6)
303 io_lo += hi; /* Reinterpret the meaning of
304 "hi" as an offset (see SYBA
305 def.) */
306 /* TODO: test if sharing interrupts works */
307 dev_dbg(&dev->dev, "PCI parallel port detected: I/O at "
308 "%#lx(%#lx)\n", io_lo, io_hi);
309 port = parport_pc_probe_port (io_lo, io_hi, PARPORT_IRQ_NONE,
310 PARPORT_DMA_NONE, &dev->dev);
311 if (port) {
312 priv->port[priv->num_par++] = port;
313 success = 1;
314 }
315 }
316
317 if (card->postinit_hook)
318 card->postinit_hook (dev, card, !success);
319
320 return 0;
321 }
322
323 static int __devinit parport_serial_pci_probe (struct pci_dev *dev,
324 const struct pci_device_id *id)
325 {
326 struct parport_serial_private *priv;
327 int err;
328
329 priv = kzalloc (sizeof *priv, GFP_KERNEL);
330 if (!priv)
331 return -ENOMEM;
332 pci_set_drvdata (dev, priv);
333
334 err = pci_enable_device (dev);
335 if (err) {
336 pci_set_drvdata (dev, NULL);
337 kfree (priv);
338 return err;
339 }
340
341 if (parport_register (dev, id)) {
342 pci_set_drvdata (dev, NULL);
343 kfree (priv);
344 return -ENODEV;
345 }
346
347 if (serial_register (dev, id)) {
348 int i;
349 for (i = 0; i < priv->num_par; i++)
350 parport_pc_unregister_port (priv->port[i]);
351 pci_set_drvdata (dev, NULL);
352 kfree (priv);
353 return -ENODEV;
354 }
355
356 return 0;
357 }
358
359 static void __devexit parport_serial_pci_remove (struct pci_dev *dev)
360 {
361 struct parport_serial_private *priv = pci_get_drvdata (dev);
362 int i;
363
364 pci_set_drvdata(dev, NULL);
365
366 // Serial ports
367 if (priv->serial)
368 pciserial_remove_ports(priv->serial);
369
370 // Parallel ports
371 for (i = 0; i < priv->num_par; i++)
372 parport_pc_unregister_port (priv->port[i]);
373
374 kfree (priv);
375 return;
376 }
377
378 #ifdef CONFIG_PM
379 static int parport_serial_pci_suspend(struct pci_dev *dev, pm_message_t state)
380 {
381 struct parport_serial_private *priv = pci_get_drvdata(dev);
382
383 if (priv->serial)
384 pciserial_suspend_ports(priv->serial);
385
386 /* FIXME: What about parport? */
387
388 pci_save_state(dev);
389 pci_set_power_state(dev, pci_choose_state(dev, state));
390 return 0;
391 }
392
393 static int parport_serial_pci_resume(struct pci_dev *dev)
394 {
395 struct parport_serial_private *priv = pci_get_drvdata(dev);
396 int err;
397
398 pci_set_power_state(dev, PCI_D0);
399 pci_restore_state(dev);
400
401 /*
402 * The device may have been disabled. Re-enable it.
403 */
404 err = pci_enable_device(dev);
405 if (err) {
406 printk(KERN_ERR "parport_serial: %s: error enabling "
407 "device for resume (%d)\n", pci_name(dev), err);
408 return err;
409 }
410
411 if (priv->serial)
412 pciserial_resume_ports(priv->serial);
413
414 /* FIXME: What about parport? */
415
416 return 0;
417 }
418 #endif
419
420 static struct pci_driver parport_serial_pci_driver = {
421 .name = "parport_serial",
422 .id_table = parport_serial_pci_tbl,
423 .probe = parport_serial_pci_probe,
424 .remove = __devexit_p(parport_serial_pci_remove),
425 #ifdef CONFIG_PM
426 .suspend = parport_serial_pci_suspend,
427 .resume = parport_serial_pci_resume,
428 #endif
429 };
430
431
432 static int __init parport_serial_init (void)
433 {
434 return pci_register_driver (&parport_serial_pci_driver);
435 }
436
437 static void __exit parport_serial_exit (void)
438 {
439 pci_unregister_driver (&parport_serial_pci_driver);
440 return;
441 }
442
443 MODULE_AUTHOR("Tim Waugh <twaugh@redhat.com>");
444 MODULE_DESCRIPTION("Driver for common parallel+serial multi-I/O PCI cards");
445 MODULE_LICENSE("GPL");
446
447 module_init(parport_serial_init);
448 module_exit(parport_serial_exit);
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