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authorTakashi Iwai <tiwai@suse.de>2005-11-17 11:12:43 -0500
committerJaroslav Kysela <perex@suse.cz>2006-01-03 06:28:29 -0500
commitfeb158e6ada20b7871f625e1edd429216ac00d3c (patch)
tree75323e101824a15e65573a5179ec407474377409 /sound
parentf7e0ba3e440d4aab381dca6d7a7eee8f2faf210b (diff)
[ALSA] sgalaxy - Use platform_device, add PM support
Modules: Sound Galaxy driver Rewrite the probe/remove with platform_device. Also, add the PM support. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/isa/sgalaxy.c93
1 files changed, 76 insertions, 17 deletions
diff --git a/sound/isa/sgalaxy.c b/sound/isa/sgalaxy.c
index c16b53ba7ea6..2e1d4677fe12 100644
--- a/sound/isa/sgalaxy.c
+++ b/sound/isa/sgalaxy.c
@@ -22,12 +22,14 @@
22 */ 22 */
23 23
24#include <sound/driver.h> 24#include <sound/driver.h>
25#include <asm/dma.h>
26#include <linux/init.h> 25#include <linux/init.h>
26#include <linux/err.h>
27#include <linux/platform_device.h>
27#include <linux/delay.h> 28#include <linux/delay.h>
28#include <linux/time.h> 29#include <linux/time.h>
29#include <linux/interrupt.h> 30#include <linux/interrupt.h>
30#include <linux/moduleparam.h> 31#include <linux/moduleparam.h>
32#include <asm/dma.h>
31#include <sound/core.h> 33#include <sound/core.h>
32#include <sound/sb.h> 34#include <sound/sb.h>
33#include <sound/ad1848.h> 35#include <sound/ad1848.h>
@@ -65,8 +67,6 @@ MODULE_PARM_DESC(dma1, "DMA1 # for Sound Galaxy driver.");
65#define SGALAXY_AUXC_LEFT 18 67#define SGALAXY_AUXC_LEFT 18
66#define SGALAXY_AUXC_RIGHT 19 68#define SGALAXY_AUXC_RIGHT 19
67 69
68static struct snd_card *snd_sgalaxy_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
69
70#define PFX "sgalaxy: " 70#define PFX "sgalaxy: "
71 71
72/* 72/*
@@ -216,8 +216,9 @@ static int __init snd_sgalaxy_mixer(struct snd_ad1848 *chip)
216 return 0; 216 return 0;
217} 217}
218 218
219static int __init snd_sgalaxy_probe(int dev) 219static int __init snd_sgalaxy_probe(struct platform_device *devptr)
220{ 220{
221 int dev = devptr->id;
221 static int possible_irqs[] = {7, 9, 10, 11, -1}; 222 static int possible_irqs[] = {7, 9, 10, 11, -1};
222 static int possible_dmas[] = {1, 3, 0, -1}; 223 static int possible_dmas[] = {1, 3, 0, -1};
223 int err, xirq, xdma1; 224 int err, xirq, xdma1;
@@ -260,6 +261,7 @@ static int __init snd_sgalaxy_probe(int dev)
260 xirq, xdma1, 261 xirq, xdma1,
261 AD1848_HW_DETECT, &chip)) < 0) 262 AD1848_HW_DETECT, &chip)) < 0)
262 goto _err; 263 goto _err;
264 card->private_data = chip;
263 265
264 if ((err = snd_ad1848_pcm(chip, 0, NULL)) < 0) { 266 if ((err = snd_ad1848_pcm(chip, 0, NULL)) < 0) {
265 snd_printdd(PFX "error creating new ad1848 PCM device\n"); 267 snd_printdd(PFX "error creating new ad1848 PCM device\n");
@@ -279,13 +281,12 @@ static int __init snd_sgalaxy_probe(int dev)
279 sprintf(card->longname, "Sound Galaxy at 0x%lx, irq %d, dma %d", 281 sprintf(card->longname, "Sound Galaxy at 0x%lx, irq %d, dma %d",
280 wssport[dev], xirq, xdma1); 282 wssport[dev], xirq, xdma1);
281 283
282 if ((err = snd_card_set_generic_dev(card)) < 0) 284 snd_card_set_dev(card, &devptr->dev);
283 goto _err;
284 285
285 if ((err = snd_card_register(card)) < 0) 286 if ((err = snd_card_register(card)) < 0)
286 goto _err; 287 goto _err;
287 288
288 snd_sgalaxy_cards[dev] = card; 289 platform_set_drvdata(devptr, card);
289 return 0; 290 return 0;
290 291
291 _err: 292 _err:
@@ -293,30 +294,88 @@ static int __init snd_sgalaxy_probe(int dev)
293 return err; 294 return err;
294} 295}
295 296
297static int __devexit snd_sgalaxy_remove(struct platform_device *devptr)
298{
299 snd_card_free(platform_get_drvdata(devptr));
300 platform_set_drvdata(devptr, NULL);
301 return 0;
302}
303
304#ifdef CONFIG_PM
305static int snd_sgalaxy_suspend(struct platform_device *pdev, pm_message_t state)
306{
307 struct snd_card *card = platform_get_drvdata(pdev);
308 struct snd_ad1848 *chip = card->private_data;
309
310 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
311 chip->suspend(chip);
312 return 0;
313}
314
315static int snd_sgalaxy_resume(struct platform_device *pdev)
316{
317 struct snd_card *card = platform_get_drvdata(pdev);
318 struct snd_ad1848 *chip = card->private_data;
319
320 chip->resume(chip);
321 snd_ad1848_out(chip, SGALAXY_AUXC_LEFT, chip->image[SGALAXY_AUXC_LEFT]);
322 snd_ad1848_out(chip, SGALAXY_AUXC_RIGHT, chip->image[SGALAXY_AUXC_RIGHT]);
323
324 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
325 return 0;
326}
327#endif
328
329#define SND_SGALAXY_DRIVER "snd_sgalaxy"
330
331static struct platform_driver snd_sgalaxy_driver = {
332 .probe = snd_sgalaxy_probe,
333 .remove = __devexit_p(snd_sgalaxy_remove),
334#ifdef CONFIG_PM
335 .suspend = snd_sgalaxy_suspend,
336 .resume = snd_sgalaxy_resume,
337#endif
338 .driver = {
339 .name = SND_SGALAXY_DRIVER
340 },
341};
342
296static int __init alsa_card_sgalaxy_init(void) 343static int __init alsa_card_sgalaxy_init(void)
297{ 344{
298 int dev, cards; 345 int i, cards, err;
299 346
300 for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) { 347 err = platform_driver_register(&snd_sgalaxy_driver);
301 if (snd_sgalaxy_probe(dev) >= 0) 348 if (err < 0)
302 cards++; 349 return err;
350
351 cards = 0;
352 for (i = 0; i < SNDRV_CARDS && enable[i]; i++) {
353 struct platform_device *device;
354 device = platform_device_register_simple(SND_SGALAXY_DRIVER,
355 i, NULL, 0);
356 if (IS_ERR(device)) {
357 err = PTR_ERR(device);
358 goto errout;
359 }
360 cards++;
303 } 361 }
304 if (!cards) { 362 if (!cards) {
305#ifdef MODULE 363#ifdef MODULE
306 snd_printk(KERN_ERR "Sound Galaxy soundcard not found or device busy\n"); 364 snd_printk(KERN_ERR "Sound Galaxy soundcard not found or device busy\n");
307#endif 365#endif
308 return -ENODEV; 366 err = -ENODEV;
367 goto errout;
309 } 368 }
310
311 return 0; 369 return 0;
370
371 errout:
372 platform_driver_unregister(&snd_sgalaxy_driver);
373 return err;
312} 374}
313 375
314static void __exit alsa_card_sgalaxy_exit(void) 376static void __exit alsa_card_sgalaxy_exit(void)
315{ 377{
316 int idx; 378 platform_driver_unregister(&snd_sgalaxy_driver);
317
318 for (idx = 0; idx < SNDRV_CARDS; idx++)
319 snd_card_free(snd_sgalaxy_cards[idx]);
320} 379}
321 380
322module_init(alsa_card_sgalaxy_init) 381module_init(alsa_card_sgalaxy_init)