[ACPI] ACPICA 20060113
[linux-2.6.git] / sound / isa / sgalaxy.c
index 17f585b0ddc19413e10dda63c9017b0d7bb46c54..0dbbb35b242caea322cb6ad93461213b0a284cc8 100644 (file)
  */
 
 #include <sound/driver.h>
-#include <asm/dma.h>
 #include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
 #include <linux/delay.h>
 #include <linux/time.h>
 #include <linux/interrupt.h>
 #include <linux/moduleparam.h>
+#include <asm/dma.h>
 #include <sound/core.h>
 #include <sound/sb.h>
 #include <sound/ad1848.h>
@@ -62,10 +64,12 @@ MODULE_PARM_DESC(irq, "IRQ # for Sound Galaxy driver.");
 module_param_array(dma1, int, NULL, 0444);
 MODULE_PARM_DESC(dma1, "DMA1 # for Sound Galaxy driver.");
 
+static struct platform_device *devices[SNDRV_CARDS];
+
 #define SGALAXY_AUXC_LEFT 18
 #define SGALAXY_AUXC_RIGHT 19
 
-static snd_card_t *snd_sgalaxy_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
+#define PFX    "sgalaxy: "
 
 /*
 
@@ -73,7 +77,7 @@ static snd_card_t *snd_sgalaxy_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
 
 #define AD1848P1( port, x ) ( port + c_d_c_AD1848##x )
 
-/* from lowlevel/sb/sb.c - to avoid having to allocate a sb_t for the */
+/* from lowlevel/sb/sb.c - to avoid having to allocate a struct snd_sb for the */
 /* short time we actually need it.. */
 
 static int snd_sgalaxy_sbdsp_reset(unsigned long port)
@@ -135,7 +139,7 @@ static int __init snd_sgalaxy_setup_wss(unsigned long port, int irq, int dma)
        }
 
 #if 0
-       snd_printdd("sgalaxy - setting up IRQ/DMA for WSS\n");
+       snd_printdd(PFX "setting up IRQ/DMA for WSS\n");
 #endif
 
         /* initialize IRQ for WSS codec */
@@ -160,7 +164,7 @@ static int __init snd_sgalaxy_setup_wss(unsigned long port, int irq, int dma)
 static int __init snd_sgalaxy_detect(int dev, int irq, int dma)
 {
 #if 0
-       snd_printdd("sgalaxy - switching to WSS mode\n");
+       snd_printdd(PFX "switching to WSS mode\n");
 #endif
 
        /* switch to WSS mode */
@@ -178,10 +182,10 @@ AD1848_DOUBLE("Aux Playback Switch", 0, SGALAXY_AUXC_LEFT, SGALAXY_AUXC_RIGHT, 7
 AD1848_DOUBLE("Aux Playback Volume", 0, SGALAXY_AUXC_LEFT, SGALAXY_AUXC_RIGHT, 0, 0, 31, 0)
 };
 
-static int __init snd_sgalaxy_mixer(ad1848_t *chip)
+static int __init snd_sgalaxy_mixer(struct snd_ad1848 *chip)
 {
-       snd_card_t *card = chip->card;
-       snd_ctl_elem_id_t id1, id2;
+       struct snd_card *card = chip->card;
+       struct snd_ctl_elem_id id1, id2;
        unsigned int idx;
        int err;
 
@@ -214,20 +218,21 @@ static int __init snd_sgalaxy_mixer(ad1848_t *chip)
        return 0;
 }
 
-static int __init snd_sgalaxy_probe(int dev)
+static int __init snd_sgalaxy_probe(struct platform_device *devptr)
 {
+       int dev = devptr->id;
        static int possible_irqs[] = {7, 9, 10, 11, -1};
        static int possible_dmas[] = {1, 3, 0, -1};
        int err, xirq, xdma1;
-       snd_card_t *card;
-       ad1848_t *chip;
+       struct snd_card *card;
+       struct snd_ad1848 *chip;
 
        if (sbport[dev] == SNDRV_AUTO_PORT) {
-               snd_printk("specify SB port\n");
+               snd_printk(KERN_ERR PFX "specify SB port\n");
                return -EINVAL;
        }
        if (wssport[dev] == SNDRV_AUTO_PORT) {
-               snd_printk("specify WSS port\n");
+               snd_printk(KERN_ERR PFX "specify WSS port\n");
                return -EINVAL;
        }
        card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
@@ -237,46 +242,40 @@ static int __init snd_sgalaxy_probe(int dev)
        xirq = irq[dev];
        if (xirq == SNDRV_AUTO_IRQ) {
                if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
-                       snd_card_free(card);
-                       snd_printk("unable to find a free IRQ\n");
-                       return -EBUSY;
+                       snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
+                       err = -EBUSY;
+                       goto _err;
                }
        }
        xdma1 = dma1[dev];
         if (xdma1 == SNDRV_AUTO_DMA) {
                if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
-                       snd_card_free(card);
-                       snd_printk("unable to find a free DMA\n");
-                       return -EBUSY;
+                       snd_printk(KERN_ERR PFX "unable to find a free DMA\n");
+                       err = -EBUSY;
+                       goto _err;
                }
        }
 
-       if ((err = snd_sgalaxy_detect(dev, xirq, xdma1)) < 0) {
-               snd_card_free(card);
-               return err;
-       }
+       if ((err = snd_sgalaxy_detect(dev, xirq, xdma1)) < 0)
+               goto _err;
 
        if ((err = snd_ad1848_create(card, wssport[dev] + 4,
                                     xirq, xdma1,
-                                    AD1848_HW_DETECT, &chip)) < 0) {
-               snd_card_free(card);
-               return err;
-       }
+                                    AD1848_HW_DETECT, &chip)) < 0)
+               goto _err;
+       card->private_data = chip;
 
        if ((err = snd_ad1848_pcm(chip, 0, NULL)) < 0) {
-               snd_printdd("sgalaxy - error creating new ad1848 PCM device\n");
-               snd_card_free(card);
-               return err;
+               snd_printdd(PFX "error creating new ad1848 PCM device\n");
+               goto _err;
        }
        if ((err = snd_ad1848_mixer(chip)) < 0) {
-               snd_printdd("sgalaxy - error creating new ad1848 mixer\n");
-               snd_card_free(card);
-               return err;
+               snd_printdd(PFX "error creating new ad1848 mixer\n");
+               goto _err;
        }
-       if (snd_sgalaxy_mixer(chip) < 0) {
-               snd_printdd("sgalaxy - the mixer rewrite failed\n");
-               snd_card_free(card);
-               return err;
+       if ((err = snd_sgalaxy_mixer(chip)) < 0) {
+               snd_printdd(PFX "the mixer rewrite failed\n");
+               goto _err;
        }
 
        strcpy(card->driver, "Sound Galaxy");
@@ -284,38 +283,111 @@ static int __init snd_sgalaxy_probe(int dev)
        sprintf(card->longname, "Sound Galaxy at 0x%lx, irq %d, dma %d",
                wssport[dev], xirq, xdma1);
 
-       if ((err = snd_card_register(card)) < 0) {
-               snd_card_free(card);
-               return err;
-       }
-       snd_sgalaxy_cards[dev] = card;
+       snd_card_set_dev(card, &devptr->dev);
+
+       if ((err = snd_card_register(card)) < 0)
+               goto _err;
+
+       platform_set_drvdata(devptr, card);
+       return 0;
+
+ _err:
+       snd_card_free(card);
+       return err;
+}
+
+static int __devexit snd_sgalaxy_remove(struct platform_device *devptr)
+{
+       snd_card_free(platform_get_drvdata(devptr));
+       platform_set_drvdata(devptr, NULL);
+       return 0;
+}
+
+#ifdef CONFIG_PM
+static int snd_sgalaxy_suspend(struct platform_device *pdev, pm_message_t state)
+{
+       struct snd_card *card = platform_get_drvdata(pdev);
+       struct snd_ad1848 *chip = card->private_data;
+
+       snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
+       chip->suspend(chip);
        return 0;
 }
 
+static int snd_sgalaxy_resume(struct platform_device *pdev)
+{
+       struct snd_card *card = platform_get_drvdata(pdev);
+       struct snd_ad1848 *chip = card->private_data;
+
+       chip->resume(chip);
+       snd_ad1848_out(chip, SGALAXY_AUXC_LEFT, chip->image[SGALAXY_AUXC_LEFT]);
+       snd_ad1848_out(chip, SGALAXY_AUXC_RIGHT, chip->image[SGALAXY_AUXC_RIGHT]);
+
+       snd_power_change_state(card, SNDRV_CTL_POWER_D0);
+       return 0;
+}
+#endif
+
+#define SND_SGALAXY_DRIVER     "snd_sgalaxy"
+
+static struct platform_driver snd_sgalaxy_driver = {
+       .probe          = snd_sgalaxy_probe,
+       .remove         = __devexit_p(snd_sgalaxy_remove),
+#ifdef CONFIG_PM
+       .suspend        = snd_sgalaxy_suspend,
+       .resume         = snd_sgalaxy_resume,
+#endif
+       .driver         = {
+               .name   = SND_SGALAXY_DRIVER
+       },
+};
+
+static void __init_or_module snd_sgalaxy_unregister_all(void)
+{
+       int i;
+
+       for (i = 0; i < ARRAY_SIZE(devices); ++i)
+               platform_device_unregister(devices[i]);
+       platform_driver_unregister(&snd_sgalaxy_driver);
+}
+
 static int __init alsa_card_sgalaxy_init(void)
 {
-       int dev, cards;
+       int i, cards, err;
+
+       err = platform_driver_register(&snd_sgalaxy_driver);
+       if (err < 0)
+               return err;
 
-       for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) {
-               if (snd_sgalaxy_probe(dev) >= 0)
-                       cards++;
+       cards = 0;
+       for (i = 0; i < SNDRV_CARDS && enable[i]; i++) {
+               struct platform_device *device;
+               device = platform_device_register_simple(SND_SGALAXY_DRIVER,
+                                                        i, NULL, 0);
+               if (IS_ERR(device)) {
+                       err = PTR_ERR(device);
+                       goto errout;
+               }
+               devices[i] = device;
+               cards++;
        }
        if (!cards) {
 #ifdef MODULE
                snd_printk(KERN_ERR "Sound Galaxy soundcard not found or device busy\n");
 #endif
-               return -ENODEV;
+               err = -ENODEV;
+               goto errout;
        }
-
        return 0;
+
+ errout:
+       snd_sgalaxy_unregister_all();
+       return err;
 }
 
 static void __exit alsa_card_sgalaxy_exit(void)
 {
-       int idx;
-
-       for (idx = 0; idx < SNDRV_CARDS; idx++)
-               snd_card_free(snd_sgalaxy_cards[idx]);
+       snd_sgalaxy_unregister_all();
 }
 
 module_init(alsa_card_sgalaxy_init)