blob: 680b82e152986ebf2580843d7707368628ef7f72 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * sound/oss/sb_card.c
3 *
4 * Detection routine for the ISA Sound Blaster and compatable sound
5 * cards.
6 *
7 * This file is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
8 * Version 2 (June 1991). See the "COPYING" file distributed with this
9 * software for more info.
10 *
11 * This is a complete rewrite of the detection routines. This was
12 * prompted by the PnP API change during v2.5 and the ugly state the
13 * code was in.
14 *
15 * Copyright (C) by Paul Laufer 2002. Based on code originally by
16 * Hannu Savolainen which was modified by many others over the
17 * years. Authors specifically mentioned in the previous version were:
18 * Daniel Stone, Alessandro Zummo, Jeff Garzik, Arnaldo Carvalho de
19 * Melo, Daniel Church, and myself.
20 *
21 * 02-05-2003 Original Release, Paul Laufer <paul@laufernet.com>
22 * 02-07-2003 Bug made it into first release. Take two.
23 */
24
25#include <linux/config.h>
26#include <linux/module.h>
27#include <linux/moduleparam.h>
28#include <linux/init.h>
29#include "sound_config.h"
30#include "sb_mixer.h"
31#include "sb.h"
32#ifdef CONFIG_PNP
33#include <linux/pnp.h>
34#endif /* CONFIG_PNP */
35#include "sb_card.h"
36
37MODULE_DESCRIPTION("OSS Soundblaster ISA PnP and legacy sound driver");
38MODULE_LICENSE("GPL");
39
40extern void *smw_free;
41
42static int __initdata mpu_io = 0;
43static int __initdata io = -1;
44static int __initdata irq = -1;
45static int __initdata dma = -1;
46static int __initdata dma16 = -1;
47static int __initdata type = 0; /* Can set this to a specific card type */
48static int __initdata esstype = 0; /* ESS chip type */
49static int __initdata acer = 0; /* Do acer notebook init? */
50static int __initdata sm_games = 0; /* Logitech soundman games? */
51
52static struct sb_card_config *legacy = NULL;
53
54#ifdef CONFIG_PNP
55static int __initdata pnp = 1;
56/*
57static int __initdata uart401 = 0;
58*/
59#else
60static int __initdata pnp = 0;
61#endif
62
63module_param(io, int, 000);
64MODULE_PARM_DESC(io, "Soundblaster i/o base address (0x220,0x240,0x260,0x280)");
65module_param(irq, int, 000);
66MODULE_PARM_DESC(irq, "IRQ (5,7,9,10)");
67module_param(dma, int, 000);
68MODULE_PARM_DESC(dma, "8-bit DMA channel (0,1,3)");
69module_param(dma16, int, 000);
70MODULE_PARM_DESC(dma16, "16-bit DMA channel (5,6,7)");
71module_param(mpu_io, int, 000);
72MODULE_PARM_DESC(mpu_io, "MPU base address");
73module_param(type, int, 000);
74MODULE_PARM_DESC(type, "You can set this to specific card type (doesn't " \
75 "work with pnp)");
76module_param(sm_games, int, 000);
77MODULE_PARM_DESC(sm_games, "Enable support for Logitech soundman games " \
78 "(doesn't work with pnp)");
79module_param(esstype, int, 000);
80MODULE_PARM_DESC(esstype, "ESS chip type (doesn't work with pnp)");
81module_param(acer, int, 000);
82MODULE_PARM_DESC(acer, "Set this to detect cards in some ACER notebooks "\
83 "(doesn't work with pnp)");
84
85#ifdef CONFIG_PNP
86module_param(pnp, int, 000);
87MODULE_PARM_DESC(pnp, "Went set to 0 will disable detection using PnP. "\
88 "Default is 1.\n");
89/* Not done yet.... */
90/*
91module_param(uart401, int, 000);
92MODULE_PARM_DESC(uart401, "When set to 1, will attempt to detect and enable"\
93 "the mpu on some clones");
94*/
95#endif /* CONFIG_PNP */
96
97/* OSS subsystem card registration shared by PnP and legacy routines */
98static int sb_register_oss(struct sb_card_config *scc, struct sb_module_options *sbmo)
99{
100 if (!request_region(scc->conf.io_base, 16, "soundblaster")) {
101 printk(KERN_ERR "sb: ports busy.\n");
102 kfree(scc);
103 return -EBUSY;
104 }
105
106 if (!sb_dsp_detect(&scc->conf, 0, 0, sbmo)) {
107 release_region(scc->conf.io_base, 16);
108 printk(KERN_ERR "sb: Failed DSP Detect.\n");
109 kfree(scc);
110 return -ENODEV;
111 }
112 if(!sb_dsp_init(&scc->conf, THIS_MODULE)) {
113 printk(KERN_ERR "sb: Failed DSP init.\n");
114 kfree(scc);
115 return -ENODEV;
116 }
117 if(scc->mpucnf.io_base > 0) {
118 scc->mpu = 1;
119 printk(KERN_INFO "sb: Turning on MPU\n");
120 if(!probe_sbmpu(&scc->mpucnf, THIS_MODULE))
121 scc->mpu = 0;
122 }
123
124 return 1;
125}
126
127static void sb_unload(struct sb_card_config *scc)
128{
129 sb_dsp_unload(&scc->conf, 0);
130 if(scc->mpu)
131 unload_sbmpu(&scc->mpucnf);
132 kfree(scc);
133}
134
135/* Register legacy card with OSS subsystem */
136static int sb_init_legacy(void)
137{
138 struct sb_module_options sbmo = {0};
139
140 if((legacy = kmalloc(sizeof(struct sb_card_config), GFP_KERNEL)) == NULL) {
141 printk(KERN_ERR "sb: Error: Could not allocate memory\n");
142 return -ENOMEM;
143 }
144 memset(legacy, 0, sizeof(struct sb_card_config));
145
146 legacy->conf.io_base = io;
147 legacy->conf.irq = irq;
148 legacy->conf.dma = dma;
149 legacy->conf.dma2 = dma16;
150 legacy->conf.card_subtype = type;
151
152 legacy->mpucnf.io_base = mpu_io;
153 legacy->mpucnf.irq = -1;
154 legacy->mpucnf.dma = -1;
155 legacy->mpucnf.dma2 = -1;
156
157 sbmo.esstype = esstype;
158 sbmo.sm_games = sm_games;
159 sbmo.acer = acer;
160
161 return sb_register_oss(legacy, &sbmo);
162}
163
164#ifdef CONFIG_PNP
165
166/* Populate the OSS subsystem structures with information from PnP */
167static void sb_dev2cfg(struct pnp_dev *dev, struct sb_card_config *scc)
168{
169 scc->conf.io_base = -1;
170 scc->conf.irq = -1;
171 scc->conf.dma = -1;
172 scc->conf.dma2 = -1;
173 scc->mpucnf.io_base = -1;
174 scc->mpucnf.irq = -1;
175 scc->mpucnf.dma = -1;
176 scc->mpucnf.dma2 = -1;
177
178 /* All clones layout their PnP tables differently and some use
179 different logical devices for the MPU */
180 if(!strncmp("CTL",scc->card_id,3)) {
181 scc->conf.io_base = pnp_port_start(dev,0);
182 scc->conf.irq = pnp_irq(dev,0);
183 scc->conf.dma = pnp_dma(dev,0);
184 scc->conf.dma2 = pnp_dma(dev,1);
185 scc->mpucnf.io_base = pnp_port_start(dev,1);
186 return;
187 }
188 if(!strncmp("tBA",scc->card_id,3)) {
189 scc->conf.io_base = pnp_port_start(dev,0);
190 scc->conf.irq = pnp_irq(dev,0);
191 scc->conf.dma = pnp_dma(dev,0);
192 scc->conf.dma2 = pnp_dma(dev,1);
193 return;
194 }
195 if(!strncmp("ESS",scc->card_id,3)) {
196 scc->conf.io_base = pnp_port_start(dev,0);
197 scc->conf.irq = pnp_irq(dev,0);
198 scc->conf.dma = pnp_dma(dev,0);
199 scc->conf.dma2 = pnp_dma(dev,1);
200 scc->mpucnf.io_base = pnp_port_start(dev,2);
201 return;
202 }
203 if(!strncmp("CMI",scc->card_id,3)) {
204 scc->conf.io_base = pnp_port_start(dev,0);
205 scc->conf.irq = pnp_irq(dev,0);
206 scc->conf.dma = pnp_dma(dev,0);
207 scc->conf.dma2 = pnp_dma(dev,1);
208 return;
209 }
210 if(!strncmp("RWB",scc->card_id,3)) {
211 scc->conf.io_base = pnp_port_start(dev,0);
212 scc->conf.irq = pnp_irq(dev,0);
213 scc->conf.dma = pnp_dma(dev,0);
214 return;
215 }
216 if(!strncmp("ALS",scc->card_id,3)) {
217 if(!strncmp("ALS0007",scc->card_id,7)) {
218 scc->conf.io_base = pnp_port_start(dev,0);
219 scc->conf.irq = pnp_irq(dev,0);
220 scc->conf.dma = pnp_dma(dev,0);
221 } else {
222 scc->conf.io_base = pnp_port_start(dev,0);
223 scc->conf.irq = pnp_irq(dev,0);
224 scc->conf.dma = pnp_dma(dev,1);
225 scc->conf.dma2 = pnp_dma(dev,0);
226 }
227 return;
228 }
229 if(!strncmp("RTL",scc->card_id,3)) {
230 scc->conf.io_base = pnp_port_start(dev,0);
231 scc->conf.irq = pnp_irq(dev,0);
232 scc->conf.dma = pnp_dma(dev,1);
233 scc->conf.dma2 = pnp_dma(dev,0);
234 }
235}
236
237/* Probe callback function for the PnP API */
238static int sb_pnp_probe(struct pnp_card_link *card, const struct pnp_card_device_id *card_id)
239{
240 struct sb_card_config *scc;
241 struct sb_module_options sbmo = {0}; /* Default to 0 for PnP */
242 struct pnp_dev *dev = pnp_request_card_device(card, card_id->devs[0].id, NULL);
243
244 if(!dev){
245 return -EBUSY;
246 }
247
248 if((scc = kmalloc(sizeof(struct sb_card_config), GFP_KERNEL)) == NULL) {
249 printk(KERN_ERR "sb: Error: Could not allocate memory\n");
250 return -ENOMEM;
251 }
252 memset(scc, 0, sizeof(struct sb_card_config));
253
254 printk(KERN_INFO "sb: PnP: Found Card Named = \"%s\", Card PnP id = " \
255 "%s, Device PnP id = %s\n", card->card->name, card_id->id,
256 dev->id->id);
257
258 scc->card_id = card_id->id;
259 scc->dev_id = dev->id->id;
260 sb_dev2cfg(dev, scc);
261
262 printk(KERN_INFO "sb: PnP: Detected at: io=0x%x, irq=%d, " \
263 "dma=%d, dma16=%d\n", scc->conf.io_base, scc->conf.irq,
264 scc->conf.dma, scc->conf.dma2);
265
266 pnp_set_card_drvdata(card, scc);
267
268 return sb_register_oss(scc, &sbmo);
269}
270
271static void sb_pnp_remove(struct pnp_card_link *card)
272{
273 struct sb_card_config *scc = pnp_get_card_drvdata(card);
274
275 if(!scc)
276 return;
277
278 printk(KERN_INFO "sb: PnP: Removing %s\n", scc->card_id);
279
280 sb_unload(scc);
281}
282
283static struct pnp_card_driver sb_pnp_driver = {
284 .name = "OSS SndBlstr", /* 16 character limit */
285 .id_table = sb_pnp_card_table,
286 .probe = sb_pnp_probe,
287 .remove = sb_pnp_remove,
288};
289MODULE_DEVICE_TABLE(pnp_card, sb_pnp_card_table);
290#endif /* CONFIG_PNP */
291
292static int __init sb_init(void)
293{
294 int lres = 0;
295 int pres = 0;
296
297 printk(KERN_INFO "sb: Init: Starting Probe...\n");
298
299 if(io != -1 && irq != -1 && dma != -1) {
300 printk(KERN_INFO "sb: Probing legacy card with io=%x, "\
301 "irq=%d, dma=%d, dma16=%d\n",io, irq, dma, dma16);
302 lres = sb_init_legacy();
303 } else if((io != -1 || irq != -1 || dma != -1) ||
304 (!pnp && (io == -1 && irq == -1 && dma == -1)))
305 printk(KERN_ERR "sb: Error: At least io, irq, and dma "\
306 "must be set for legacy cards.\n");
307
308#ifdef CONFIG_PNP
309 if(pnp) {
310 pres = pnp_register_card_driver(&sb_pnp_driver);
311 }
312#endif
313 printk(KERN_INFO "sb: Init: Done\n");
314
315 /* If either PnP or Legacy registered a card then return
316 * success */
317 if (pres <= 0 && lres <= 0) {
318#ifdef CONFIG_PNP
319 pnp_unregister_card_driver(&sb_pnp_driver);
320#endif
321 return -ENODEV;
322 }
323 return 0;
324}
325
326static void __exit sb_exit(void)
327{
328 printk(KERN_INFO "sb: Unloading...\n");
329
330 /* Unload legacy card */
331 if (legacy) {
332 printk (KERN_INFO "sb: Unloading legacy card\n");
333 sb_unload(legacy);
334 }
335
336#ifdef CONFIG_PNP
337 pnp_unregister_card_driver(&sb_pnp_driver);
338#endif
339
340 if (smw_free) {
341 vfree(smw_free);
342 smw_free = NULL;
343 }
344}
345
346module_init(sb_init);
347module_exit(sb_exit);