soc: codecs: rt5639: Implement i2c shutdown
[linux-2.6.git] / sound / oss / sb_card.c
1 /*
2  * sound/oss/sb_card.c
3  *
4  * Detection routine for the ISA Sound Blaster and compatible 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/module.h>
26 #include <linux/moduleparam.h>
27 #include <linux/slab.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
37 MODULE_DESCRIPTION("OSS Soundblaster ISA PnP and legacy sound driver");
38 MODULE_LICENSE("GPL");
39
40 extern void *smw_free;
41
42 static int __initdata mpu_io    = 0;
43 static int __initdata io        = -1;
44 static int __initdata irq       = -1;
45 static int __initdata dma       = -1;
46 static int __initdata dma16     = -1;
47 static int __initdata type      = 0; /* Can set this to a specific card type */
48 static int __initdata esstype   = 0; /* ESS chip type */
49 static int __initdata acer      = 0; /* Do acer notebook init? */
50 static int __initdata sm_games  = 0; /* Logitech soundman games? */
51
52 static struct sb_card_config *legacy = NULL;
53
54 #ifdef CONFIG_PNP
55 static int pnp_registered;
56 static int __initdata pnp       = 1;
57 /*
58 static int __initdata uart401   = 0;
59 */
60 #else
61 static int __initdata pnp       = 0;
62 #endif
63
64 module_param(io, int, 000);
65 MODULE_PARM_DESC(io,       "Soundblaster i/o base address (0x220,0x240,0x260,0x280)");
66 module_param(irq, int, 000);
67 MODULE_PARM_DESC(irq,      "IRQ (5,7,9,10)");
68 module_param(dma, int, 000);
69 MODULE_PARM_DESC(dma,      "8-bit DMA channel (0,1,3)");
70 module_param(dma16, int, 000);
71 MODULE_PARM_DESC(dma16,    "16-bit DMA channel (5,6,7)");
72 module_param(mpu_io, int, 000);
73 MODULE_PARM_DESC(mpu_io,   "MPU base address");
74 module_param(type, int, 000);
75 MODULE_PARM_DESC(type,     "You can set this to specific card type (doesn't " \
76                  "work with pnp)");
77 module_param(sm_games, int, 000);
78 MODULE_PARM_DESC(sm_games, "Enable support for Logitech soundman games " \
79                  "(doesn't work with pnp)");
80 module_param(esstype, int, 000);
81 MODULE_PARM_DESC(esstype,  "ESS chip type (doesn't work with pnp)");
82 module_param(acer, int, 000);
83 MODULE_PARM_DESC(acer,     "Set this to detect cards in some ACER notebooks "\
84                  "(doesn't work with pnp)");
85
86 #ifdef CONFIG_PNP
87 module_param(pnp, int, 000);
88 MODULE_PARM_DESC(pnp,     "Went set to 0 will disable detection using PnP. "\
89                   "Default is 1.\n");
90 /* Not done yet.... */
91 /*
92 module_param(uart401, int, 000);
93 MODULE_PARM_DESC(uart401,  "When set to 1, will attempt to detect and enable"\
94                  "the mpu on some clones");
95 */
96 #endif /* CONFIG_PNP */
97
98 /* OSS subsystem card registration shared by PnP and legacy routines */
99 static int sb_register_oss(struct sb_card_config *scc, struct sb_module_options *sbmo)
100 {
101         if (!request_region(scc->conf.io_base, 16, "soundblaster")) {
102                 printk(KERN_ERR "sb: ports busy.\n");
103                 kfree(scc);
104                 return -EBUSY;
105         }
106
107         if (!sb_dsp_detect(&scc->conf, 0, 0, sbmo)) {
108                 release_region(scc->conf.io_base, 16);
109                 printk(KERN_ERR "sb: Failed DSP Detect.\n");
110                 kfree(scc);
111                 return -ENODEV;
112         }
113         if(!sb_dsp_init(&scc->conf, THIS_MODULE)) {
114                 printk(KERN_ERR "sb: Failed DSP init.\n");
115                 kfree(scc);
116                 return -ENODEV;
117         }
118         if(scc->mpucnf.io_base > 0) {
119                 scc->mpu = 1;
120                 printk(KERN_INFO "sb: Turning on MPU\n");
121                 if(!probe_sbmpu(&scc->mpucnf, THIS_MODULE))
122                         scc->mpu = 0;
123         }
124
125         return 1;
126 }
127
128 static void sb_unload(struct sb_card_config *scc)
129 {
130         sb_dsp_unload(&scc->conf, 0);
131         if(scc->mpu)
132                 unload_sbmpu(&scc->mpucnf);
133         kfree(scc);
134 }
135
136 /* Register legacy card with OSS subsystem */
137 static int __init sb_init_legacy(void)
138 {
139         struct sb_module_options sbmo = {0};
140
141         if((legacy = kzalloc(sizeof(struct sb_card_config), GFP_KERNEL)) == NULL) {
142                 printk(KERN_ERR "sb: Error: Could not allocate memory\n");
143                 return -ENOMEM;
144         }
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 */
167 static 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 static unsigned int sb_pnp_devices;
238
239 /* Probe callback function for the PnP API */
240 static int sb_pnp_probe(struct pnp_card_link *card, const struct pnp_card_device_id *card_id)
241 {
242         struct sb_card_config *scc;
243         struct sb_module_options sbmo = {0}; /* Default to 0 for PnP */
244         struct pnp_dev *dev = pnp_request_card_device(card, card_id->devs[0].id, NULL);
245         
246         if(!dev){
247                 return -EBUSY;
248         }
249
250         if((scc = kzalloc(sizeof(struct sb_card_config), GFP_KERNEL)) == NULL) {
251                 printk(KERN_ERR "sb: Error: Could not allocate memory\n");
252                 return -ENOMEM;
253         }
254
255         printk(KERN_INFO "sb: PnP: Found Card Named = \"%s\", Card PnP id = " \
256                "%s, Device PnP id = %s\n", card->card->name, card_id->id,
257                dev->id->id);
258
259         scc->card_id = card_id->id;
260         scc->dev_id = dev->id->id;
261         sb_dev2cfg(dev, scc);
262
263         printk(KERN_INFO "sb: PnP:      Detected at: io=0x%x, irq=%d, " \
264                "dma=%d, dma16=%d\n", scc->conf.io_base, scc->conf.irq,
265                scc->conf.dma, scc->conf.dma2);
266
267         pnp_set_card_drvdata(card, scc);
268         sb_pnp_devices++;
269
270         return sb_register_oss(scc, &sbmo);
271 }
272
273 static void sb_pnp_remove(struct pnp_card_link *card)
274 {
275         struct sb_card_config *scc = pnp_get_card_drvdata(card);
276
277         if(!scc)
278                 return;
279
280         printk(KERN_INFO "sb: PnP: Removing %s\n", scc->card_id);
281
282         sb_unload(scc);
283 }
284
285 static struct pnp_card_driver sb_pnp_driver = {
286         .name          = "OSS SndBlstr", /* 16 character limit */
287         .id_table      = sb_pnp_card_table,
288         .probe         = sb_pnp_probe,
289         .remove        = sb_pnp_remove,
290 };
291 MODULE_DEVICE_TABLE(pnp_card, sb_pnp_card_table);
292 #endif /* CONFIG_PNP */
293
294 static void sb_unregister_all(void)
295 {
296 #ifdef CONFIG_PNP
297         if (pnp_registered)
298                 pnp_unregister_card_driver(&sb_pnp_driver);
299 #endif
300 }
301
302 static int __init sb_init(void)
303 {
304         int lres = 0;
305         int pres = 0;
306
307         printk(KERN_INFO "sb: Init: Starting Probe...\n");
308
309         if(io != -1 && irq != -1 && dma != -1) {
310                 printk(KERN_INFO "sb: Probing legacy card with io=%x, "\
311                        "irq=%d, dma=%d, dma16=%d\n",io, irq, dma, dma16);
312                 lres = sb_init_legacy();
313         } else if((io != -1 || irq != -1 || dma != -1) ||
314                   (!pnp && (io == -1 && irq == -1 && dma == -1)))
315                 printk(KERN_ERR "sb: Error: At least io, irq, and dma "\
316                        "must be set for legacy cards.\n");
317
318 #ifdef CONFIG_PNP
319         if(pnp) {
320                 int err = pnp_register_card_driver(&sb_pnp_driver);
321                 if (!err)
322                         pnp_registered = 1;
323                 pres = sb_pnp_devices;
324         }
325 #endif
326         printk(KERN_INFO "sb: Init: Done\n");
327
328         /* If either PnP or Legacy registered a card then return
329          * success */
330         if (pres == 0 && lres <= 0) {
331                 sb_unregister_all();
332                 return -ENODEV;
333         }
334         return 0;
335 }
336
337 static void __exit sb_exit(void)
338 {
339         printk(KERN_INFO "sb: Unloading...\n");
340
341         /* Unload legacy card */
342         if (legacy) {
343                 printk (KERN_INFO "sb: Unloading legacy card\n");
344                 sb_unload(legacy);
345         }
346
347         sb_unregister_all();
348
349         vfree(smw_free);
350         smw_free = NULL;
351 }
352
353 module_init(sb_init);
354 module_exit(sb_exit);