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x86: arch/x86/mm/init_32.c cleanup
[wrt350n-kernel.git] / drivers / parport / parport_serial.c
blobbd6ad8b38168a43b3def14876deb7095b6117da9
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 return 0;
74 }
75
76 static struct parport_pc_pci cards[] __devinitdata = {
77 /* titan_110l */ { 1, { { 3, -1 }, } },
78 /* titan_210l */ { 1, { { 3, -1 }, } },
79 /* netmos_9xx5_combo */ { 1, { { 2, -1 }, }, netmos_parallel_init },
80 /* netmos_9855 */ { 1, { { 0, -1 }, }, netmos_parallel_init },
81 /* avlab_1s1p */ { 1, { { 1, 2}, } },
82 /* avlab_1s2p */ { 2, { { 1, 2}, { 3, 4 },} },
83 /* avlab_2s1p */ { 1, { { 2, 3}, } },
84 /* siig_1s1p_10x */ { 1, { { 3, 4 }, } },
85 /* siig_2s1p_10x */ { 1, { { 4, 5 }, } },
86 /* siig_2p1s_20x */ { 2, { { 1, 2 }, { 3, 4 }, } },
87 /* siig_1s1p_20x */ { 1, { { 1, 2 }, } },
88 /* siig_2s1p_20x */ { 1, { { 2, 3 }, } },
89 };
90
91 static struct pci_device_id parport_serial_pci_tbl[] = {
92 /* PCI cards */
93 { PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_110L,
94 PCI_ANY_ID, PCI_ANY_ID, 0, 0, titan_110l },
95 { PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_210L,
96 PCI_ANY_ID, PCI_ANY_ID, 0, 0, titan_210l },
97 { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9735,
98 PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
99 { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9745,
100 PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
101 { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9835,
102 PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
103 { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9845,
104 PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
105 { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9855,
106 PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9855 },
107 /* PCI_VENDOR_ID_AVLAB/Intek21 has another bunch of cards ...*/
108 { PCI_VENDOR_ID_AFAVLAB, 0x2110,
109 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p },
110 { PCI_VENDOR_ID_AFAVLAB, 0x2111,
111 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p },
112 { PCI_VENDOR_ID_AFAVLAB, 0x2112,
113 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p },
114 { PCI_VENDOR_ID_AFAVLAB, 0x2140,
115 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p },
116 { PCI_VENDOR_ID_AFAVLAB, 0x2141,
117 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p },
118 { PCI_VENDOR_ID_AFAVLAB, 0x2142,
119 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p },
120 { PCI_VENDOR_ID_AFAVLAB, 0x2160,
121 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p },
122 { PCI_VENDOR_ID_AFAVLAB, 0x2161,
123 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p },
124 { PCI_VENDOR_ID_AFAVLAB, 0x2162,
125 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p },
126 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_550,
127 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
128 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_650,
129 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
130 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_850,
131 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
132 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_550,
133 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
134 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_650,
135 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
136 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_850,
137 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
138 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_550,
139 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
140 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_650,
141 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
142 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_850,
143 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
144 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_550,
145 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
146 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_650,
147 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_20x },
148 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_850,
149 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_20x },
150 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_550,
151 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
152 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_650,
153 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
154 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_850,
155 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
156
157 { 0, } /* terminate list */
158 };
159 MODULE_DEVICE_TABLE(pci,parport_serial_pci_tbl);
160
161 /*
162 * This table describes the serial "geometry" of these boards. Any
163 * quirks for these can be found in drivers/serial/8250_pci.c
164 *
165 * Cards not tested are marked n/t
166 * If you have one of these cards and it works for you, please tell me..
167 */
168 static struct pciserial_board pci_parport_serial_boards[] __devinitdata = {
169 [titan_110l] = {
170 .flags = FL_BASE1 | FL_BASE_BARS,
171 .num_ports = 1,
172 .base_baud = 921600,
173 .uart_offset = 8,
174 },
175 [titan_210l] = {
176 .flags = FL_BASE1 | FL_BASE_BARS,
177 .num_ports = 2,
178 .base_baud = 921600,
179 .uart_offset = 8,
180 },
181 [netmos_9xx5_combo] = {
182 .flags = FL_BASE0 | FL_BASE_BARS,
183 .num_ports = 1,
184 .base_baud = 115200,
185 .uart_offset = 8,
186 },
187 [netmos_9855] = {
188 .flags = FL_BASE2 | FL_BASE_BARS,
189 .num_ports = 1,
190 .base_baud = 115200,
191 .uart_offset = 8,
192 },
193 [avlab_1s1p] = { /* n/t */
194 .flags = FL_BASE0 | FL_BASE_BARS,
195 .num_ports = 1,
196 .base_baud = 115200,
197 .uart_offset = 8,
198 },
199 [avlab_1s2p] = { /* n/t */
200 .flags = FL_BASE0 | FL_BASE_BARS,
201 .num_ports = 1,
202 .base_baud = 115200,
203 .uart_offset = 8,
204 },
205 [avlab_2s1p] = { /* n/t */
206 .flags = FL_BASE0 | FL_BASE_BARS,
207 .num_ports = 2,
208 .base_baud = 115200,
209 .uart_offset = 8,
210 },
211 [siig_1s1p_10x] = {
212 .flags = FL_BASE2,
213 .num_ports = 1,
214 .base_baud = 460800,
215 .uart_offset = 8,
216 },
217 [siig_2s1p_10x] = {
218 .flags = FL_BASE2,
219 .num_ports = 1,
220 .base_baud = 921600,
221 .uart_offset = 8,
222 },
223 [siig_2p1s_20x] = {
224 .flags = FL_BASE0,
225 .num_ports = 1,
226 .base_baud = 921600,
227 .uart_offset = 8,
228 },
229 [siig_1s1p_20x] = {
230 .flags = FL_BASE0,
231 .num_ports = 1,
232 .base_baud = 921600,
233 .uart_offset = 8,
234 },
235 [siig_2s1p_20x] = {
236 .flags = FL_BASE0,
237 .num_ports = 1,
238 .base_baud = 921600,
239 .uart_offset = 8,
240 },
241 };
242
243 struct parport_serial_private {
244 struct serial_private *serial;
245 int num_par;
246 struct parport *port[PARPORT_MAX];
247 struct parport_pc_pci par;
248 };
249
250 /* Register the serial port(s) of a PCI card. */
251 static int __devinit serial_register (struct pci_dev *dev,
252 const struct pci_device_id *id)
253 {
254 struct parport_serial_private *priv = pci_get_drvdata (dev);
255 struct pciserial_board *board;
256 struct serial_private *serial;
257
258 board = &pci_parport_serial_boards[id->driver_data];
259 serial = pciserial_init_ports(dev, board);
260
261 if (IS_ERR(serial))
262 return PTR_ERR(serial);
263
264 priv->serial = serial;
265 return 0;
266 }
267
268 /* Register the parallel port(s) of a PCI card. */
269 static int __devinit parport_register (struct pci_dev *dev,
270 const struct pci_device_id *id)
271 {
272 struct parport_pc_pci *card;
273 struct parport_serial_private *priv = pci_get_drvdata (dev);
274 int n, success = 0;
275
276 priv->par = cards[id->driver_data];
277 card = &priv->par;
278 if (card->preinit_hook &&
279 card->preinit_hook (dev, card, PARPORT_IRQ_NONE, PARPORT_DMA_NONE))
280 return -ENODEV;
281
282 for (n = 0; n < card->numports; n++) {
283 struct parport *port;
284 int lo = card->addr[n].lo;
285 int hi = card->addr[n].hi;
286 unsigned long io_lo, io_hi;
287
288 if (priv->num_par == ARRAY_SIZE (priv->port)) {
289 printk (KERN_WARNING
290 "parport_serial: %s: only %zu parallel ports "
291 "supported (%d reported)\n", pci_name (dev),
292 ARRAY_SIZE(priv->port), card->numports);
293 break;
294 }
295
296 io_lo = pci_resource_start (dev, lo);
297 io_hi = 0;
298 if ((hi >= 0) && (hi <= 6))
299 io_hi = pci_resource_start (dev, hi);
300 else if (hi > 6)
301 io_lo += hi; /* Reinterpret the meaning of
302 "hi" as an offset (see SYBA
303 def.) */
304 /* TODO: test if sharing interrupts works */
305 dev_dbg(&dev->dev, "PCI parallel port detected: I/O at "
306 "%#lx(%#lx)\n", io_lo, io_hi);
307 port = parport_pc_probe_port (io_lo, io_hi, PARPORT_IRQ_NONE,
308 PARPORT_DMA_NONE, &dev->dev);
309 if (port) {
310 priv->port[priv->num_par++] = port;
311 success = 1;
312 }
313 }
314
315 if (card->postinit_hook)
316 card->postinit_hook (dev, card, !success);
317
318 return 0;
319 }
320
321 static int __devinit parport_serial_pci_probe (struct pci_dev *dev,
322 const struct pci_device_id *id)
323 {
324 struct parport_serial_private *priv;
325 int err;
326
327 priv = kzalloc (sizeof *priv, GFP_KERNEL);
328 if (!priv)
329 return -ENOMEM;
330 pci_set_drvdata (dev, priv);
331
332 err = pci_enable_device (dev);
333 if (err) {
334 pci_set_drvdata (dev, NULL);
335 kfree (priv);
336 return err;
337 }
338
339 if (parport_register (dev, id)) {
340 pci_set_drvdata (dev, NULL);
341 kfree (priv);
342 return -ENODEV;
343 }
344
345 if (serial_register (dev, id)) {
346 int i;
347 for (i = 0; i < priv->num_par; i++)
348 parport_pc_unregister_port (priv->port[i]);
349 pci_set_drvdata (dev, NULL);
350 kfree (priv);
351 return -ENODEV;
352 }
353
354 return 0;
355 }
356
357 static void __devexit parport_serial_pci_remove (struct pci_dev *dev)
358 {
359 struct parport_serial_private *priv = pci_get_drvdata (dev);
360 int i;
361
362 pci_set_drvdata(dev, NULL);
363
364 // Serial ports
365 if (priv->serial)
366 pciserial_remove_ports(priv->serial);
367
368 // Parallel ports
369 for (i = 0; i < priv->num_par; i++)
370 parport_pc_unregister_port (priv->port[i]);
371
372 kfree (priv);
373 return;
374 }
375
376 #ifdef CONFIG_PM
377 static int parport_serial_pci_suspend(struct pci_dev *dev, pm_message_t state)
378 {
379 struct parport_serial_private *priv = pci_get_drvdata(dev);
380
381 if (priv->serial)
382 pciserial_suspend_ports(priv->serial);
383
384 /* FIXME: What about parport? */
385
386 pci_save_state(dev);
387 pci_set_power_state(dev, pci_choose_state(dev, state));
388 return 0;
389 }
390
391 static int parport_serial_pci_resume(struct pci_dev *dev)
392 {
393 struct parport_serial_private *priv = pci_get_drvdata(dev);
394 int err;
395
396 pci_set_power_state(dev, PCI_D0);
397 pci_restore_state(dev);
398
399 /*
400 * The device may have been disabled. Re-enable it.
401 */
402 err = pci_enable_device(dev);
403 if (err) {
404 printk(KERN_ERR "parport_serial: %s: error enabling "
405 "device for resume (%d)\n", pci_name(dev), err);
406 return err;
407 }
408
409 if (priv->serial)
410 pciserial_resume_ports(priv->serial);
411
412 /* FIXME: What about parport? */
413
414 return 0;
415 }
416 #endif
417
418 static struct pci_driver parport_serial_pci_driver = {
419 .name = "parport_serial",
420 .id_table = parport_serial_pci_tbl,
421 .probe = parport_serial_pci_probe,
422 .remove = __devexit_p(parport_serial_pci_remove),
423 #ifdef CONFIG_PM
424 .suspend = parport_serial_pci_suspend,
425 .resume = parport_serial_pci_resume,
426 #endif
427 };
428
429
430 static int __init parport_serial_init (void)
431 {
432 return pci_register_driver (&parport_serial_pci_driver);
433 }
434
435 static void __exit parport_serial_exit (void)
436 {
437 pci_unregister_driver (&parport_serial_pci_driver);
438 return;
439 }
440
441 MODULE_AUTHOR("Tim Waugh <twaugh@redhat.com>");
442 MODULE_DESCRIPTION("Driver for common parallel+serial multi-I/O PCI cards");
443 MODULE_LICENSE("GPL");
444
445 module_init(parport_serial_init);
446 module_exit(parport_serial_exit);
WRT350N Kernel Patches