ALSA: opti-miro: separate comon probing code

Separate common probing code in order to use it
for PnP probing.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 147 insertions, 126 deletions

diff --git a/sound/isa/opti9xx/miro.c b/sound/isa/opti9xx/miro.c
index e374869e3e21..c67bc3cd2c65 100644
--- a/sound/isa/opti9xx/miro.c
+++ b/sound/isa/opti9xx/miro.c
@@ -1142,28 +1142,39 @@ __skip_mpu:
         return 0;
 }
 
+static int __devinit snd_miro_opti_check(struct snd_miro *chip)
+{
+        unsigned char value;
+
+        chip->res_mc_base = request_region(chip->mc_base, chip->mc_base_size,
+                                           "OPTi9xx MC");
+        if (chip->res_mc_base == NULL)
+                return -ENOMEM;
+
+        value = snd_miro_read(chip, OPTi9XX_MC_REG(1));
+        if (value != 0xff && value != inb(chip->mc_base + OPTi9XX_MC_REG(1)))
+                if (value == snd_miro_read(chip, OPTi9XX_MC_REG(1)))
+                        return 0;
+
+        release_and_free_resource(chip->res_mc_base);
+        chip->res_mc_base = NULL;
+
+        return -ENODEV;
+}
+
 static int __devinit snd_card_miro_detect(struct snd_card *card,
                                           struct snd_miro *chip)
 {
         int i, err;
-        unsigned char value;
 
         for (i = OPTi9XX_HW_82C929; i <= OPTi9XX_HW_82C924; i++) {
 
                 if ((err = snd_miro_init(chip, i)) < 0)
                         return err;
 
-                if ((chip->res_mc_base = request_region(chip->mc_base, chip->mc_base_size, "OPTi9xx MC")) == NULL)
-                        continue;
-
-                value = snd_miro_read(chip, OPTi9XX_MC_REG(1));
-                if ((value != 0xff) && (value != inb(chip->mc_base + 1)))
-                        if (value == snd_miro_read(chip, OPTi9XX_MC_REG(1)))
-                                return 1;
-
-                release_and_free_resource(chip->res_mc_base);
-                chip->res_mc_base = NULL;
-
+                err = snd_miro_opti_check(chip);
+                if (err == 0)
+                        return 1;
         }
 
         return -ENODEV;
@@ -1234,151 +1245,69 @@ static void snd_card_miro_free(struct snd_card *card)
         release_and_free_resource(miro->res_mc_base);
 }
 
-static int __devinit snd_miro_match(struct device *devptr, unsigned int n)
-{
-        return 1;
-}
-
-static int __devinit snd_miro_probe(struct device *devptr, unsigned int n)
+static int __devinit snd_miro_probe(struct snd_card *card)
 {
-        static long possible_ports[] = {0x530, 0xe80, 0xf40, 0x604, -1};
-        static long possible_mpu_ports[] = {0x330, 0x300, 0x310, 0x320, -1};
-        static int possible_irqs[] = {11, 9, 10, 7, -1};
-        static int possible_mpu_irqs[] = {10, 5, 9, 7, -1};
-        static int possible_dma1s[] = {3, 1, 0, -1};
-        static int possible_dma2s[][2] = {{1,-1}, {0,-1}, {-1,-1}, {0,-1}};
-
         int error;
-        struct snd_miro *miro;
+        struct snd_miro *miro = card->private_data;
         struct snd_wss *codec;
         struct snd_timer *timer;
-        struct snd_card *card;
         struct snd_pcm *pcm;
         struct snd_rawmidi *rmidi;
 
-        error = snd_card_create(index, id, THIS_MODULE,
-                                sizeof(struct snd_miro), &card);
-        if (error < 0)
-                return error;
-
-        card->private_free = snd_card_miro_free;
-        miro = card->private_data;
-
-        error = snd_card_miro_detect(card, miro);
-        if (error < 0) {
-                snd_card_free(card);
-                snd_printk(KERN_ERR "unable to detect OPTi9xx chip\n");
-                return -ENODEV;
+        if (!miro->res_mc_base) {
+                miro->res_mc_base = request_region(miro->mc_base,
+                                                miro->mc_base_size,
+                                                "miro (OPTi9xx MC)");
+                if (miro->res_mc_base == NULL) {
+                        snd_printk(KERN_ERR "request for OPTI9xx MC failed\n");
+                        return -ENOMEM;
+                }
         }
 
-        if ((error = snd_card_miro_aci_detect(card, miro)) < 0) {
+        error = snd_card_miro_aci_detect(card, miro);
+        if (error < 0) {
                 snd_card_free(card);
                 snd_printk(KERN_ERR "unable to detect aci chip\n");
                 return -ENODEV;
         }
 
-        /* init proc interface */
-        snd_miro_proc_init(card, miro);
-
-
-        if (! miro->res_mc_base &&
-            (miro->res_mc_base = request_region(miro->mc_base, miro->mc_base_size,
-                                                "miro (OPTi9xx MC)")) == NULL) {
-                snd_card_free(card);
-                snd_printk(KERN_ERR "request for OPTI9xx MC failed\n");
-                return -ENOMEM;
-        }
-
         miro->wss_base = port;
+        miro->mpu_port = mpu_port;
         miro->irq = irq;
         miro->mpu_irq = mpu_irq;
         miro->dma1 = dma1;
         miro->dma2 = dma2;
 
-        if (miro->wss_base == SNDRV_AUTO_PORT) {
-                if ((miro->wss_base = snd_legacy_find_free_ioport(possible_ports, 4)) < 0) {
-                        snd_card_free(card);
-                        snd_printk(KERN_ERR "unable to find a free WSS port\n");
-                        return -EBUSY;
-                }
-        }
-
-        if (mpu_port == SNDRV_AUTO_PORT) {
-                mpu_port = snd_legacy_find_free_ioport(possible_mpu_ports, 2);
-                if (mpu_port < 0) {
-                        snd_card_free(card);
-                        snd_printk(KERN_ERR "unable to find a free MPU401 port\n");
-                        return -EBUSY;
-                }
-        }
-        miro->mpu_port = mpu_port;
-
-        if (miro->irq == SNDRV_AUTO_IRQ) {
-                if ((miro->irq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
-                        snd_card_free(card);
-                        snd_printk(KERN_ERR "unable to find a free IRQ\n");
-                        return -EBUSY;
-                }
-        }
-        if (miro->mpu_irq == SNDRV_AUTO_IRQ) {
-                if ((miro->mpu_irq = snd_legacy_find_free_irq(possible_mpu_irqs)) < 0) {
-                        snd_card_free(card);
-                        snd_printk(KERN_ERR "unable to find a free MPU401 IRQ\n");
-                        return -EBUSY;
-                }
-        }
-        if (miro->dma1 == SNDRV_AUTO_DMA) {
-                if ((miro->dma1 = snd_legacy_find_free_dma(possible_dma1s)) < 0) {
-                        snd_card_free(card);
-                        snd_printk(KERN_ERR "unable to find a free DMA1\n");
-                        return -EBUSY;
-                }
-        }
-        if (miro->dma2 == SNDRV_AUTO_DMA) {
-                if ((miro->dma2 = snd_legacy_find_free_dma(possible_dma2s[miro->dma1 % 4])) < 0) {
-                        snd_card_free(card);
-                        snd_printk(KERN_ERR "unable to find a free DMA2\n");
-                        return -EBUSY;
-                }
-        }
+        /* init proc interface */
+        snd_miro_proc_init(card, miro);
 
         error = snd_miro_configure(miro);
-        if (error) {
-                snd_card_free(card);
+        if (error)
                 return error;
-        }
 
         error = snd_wss_create(card, miro->wss_base + 4, -1,
-                                miro->irq, miro->dma1, miro->dma2,
-                                WSS_HW_AD1845, 0, &codec);
-        if (error < 0) {
-                snd_card_free(card);
+                               miro->irq, miro->dma1, miro->dma2,
+                               WSS_HW_DETECT, 0, &codec);
+        if (error < 0)
                 return error;
-        }
 
         error = snd_wss_pcm(codec, 0, &pcm);
-        if (error < 0)  {
-                snd_card_free(card);
+        if (error < 0)
                 return error;
-        }
+
         error = snd_wss_mixer(codec);
-        if (error < 0) {
-                snd_card_free(card);
+        if (error < 0)
                 return error;
-        }
+
         error = snd_wss_timer(codec, 0, &timer);
-        if (error < 0) {
-                snd_card_free(card);
+        if (error < 0)
                 return error;
-        }
 
         miro->pcm = pcm;
 
         error = snd_miro_mixer(card, miro);
-        if (error < 0) {
-                snd_card_free(card);
+        if (error < 0)
                 return error;
-        }
 
         if (miro->aci->aci_vendor == 'm') {
                 /* It looks like a miro sound card. */
@@ -1425,20 +1354,111 @@ static int __devinit snd_miro_probe(struct device *devptr, unsigned int n)
         if (fm_port > 0 && fm_port != SNDRV_AUTO_PORT) {
                 struct snd_opl3 *opl3 = NULL;
                 struct snd_opl4 *opl4;
+
                 if (snd_opl4_create(card, fm_port, fm_port - 8,
                                     2, &opl3, &opl4) < 0)
                         snd_printk(KERN_WARNING "no OPL4 device at 0x%lx\n",
                                    fm_port);
         }
 
-        if ((error = snd_set_aci_init_values(miro)) < 0) {
-                snd_card_free(card);
+        error = snd_set_aci_init_values(miro);
+        if (error < 0)
                 return error;
+
+        return snd_card_register(card);
+}
+
+static int __devinit snd_miro_isa_match(struct device *devptr, unsigned int n)
+{
+        return 1;
+}
+
+static int __devinit snd_miro_isa_probe(struct device *devptr, unsigned int n)
+{
+        static long possible_ports[] = {0x530, 0xe80, 0xf40, 0x604, -1};
+        static long possible_mpu_ports[] = {0x330, 0x300, 0x310, 0x320, -1};
+        static int possible_irqs[] = {11, 9, 10, 7, -1};
+        static int possible_mpu_irqs[] = {10, 5, 9, 7, -1};
+        static int possible_dma1s[] = {3, 1, 0, -1};
+        static int possible_dma2s[][2] = { {1, -1}, {0, -1}, {-1, -1},
+                                           {0, -1} };
+
+        int error;
+        struct snd_miro *miro;
+        struct snd_card *card;
+
+        error = snd_card_create(index, id, THIS_MODULE,
+                                sizeof(struct snd_miro), &card);
+        if (error < 0)
+                return error;
+
+        card->private_free = snd_card_miro_free;
+        miro = card->private_data;
+
+        error = snd_card_miro_detect(card, miro);
+        if (error < 0) {
+                snd_card_free(card);
+                snd_printk(KERN_ERR "unable to detect OPTi9xx chip\n");
+                return -ENODEV;
+        }
+
+        if (port == SNDRV_AUTO_PORT) {
+                port = snd_legacy_find_free_ioport(possible_ports, 4);
+                if (port < 0) {
+                        snd_card_free(card);
+                        snd_printk(KERN_ERR "unable to find a free WSS port\n");
+                        return -EBUSY;
+                }
+        }
+
+        if (mpu_port == SNDRV_AUTO_PORT) {
+                mpu_port = snd_legacy_find_free_ioport(possible_mpu_ports, 2);
+                if (mpu_port < 0) {
+                        snd_card_free(card);
+                        snd_printk(KERN_ERR
+                                   "unable to find a free MPU401 port\n");
+                        return -EBUSY;
+                }
+        }
+
+        if (irq == SNDRV_AUTO_IRQ) {
+                irq = snd_legacy_find_free_irq(possible_irqs);
+                if (irq < 0) {
+                        snd_card_free(card);
+                        snd_printk(KERN_ERR "unable to find a free IRQ\n");
+                        return -EBUSY;
+                }
+        }
+        if (mpu_irq == SNDRV_AUTO_IRQ) {
+                mpu_irq = snd_legacy_find_free_irq(possible_mpu_irqs);
+                if (mpu_irq < 0) {
+                        snd_card_free(card);
+                        snd_printk(KERN_ERR
+                                   "unable to find a free MPU401 IRQ\n");
+                        return -EBUSY;
+                }
+        }
+        if (dma1 == SNDRV_AUTO_DMA) {
+                dma1 = snd_legacy_find_free_dma(possible_dma1s);
+                if (dma1 < 0) {
+                        snd_card_free(card);
+                        snd_printk(KERN_ERR "unable to find a free DMA1\n");
+                        return -EBUSY;
+                }
+        }
+        if (dma2 == SNDRV_AUTO_DMA) {
+                dma2 = snd_legacy_find_free_dma(possible_dma2s[dma1 % 4]);
+                if (dma2 < 0) {
+                        snd_card_free(card);
+                        snd_printk(KERN_ERR "unable to find a free DMA2\n");
+                        return -EBUSY;
+                }
         }
 
         snd_card_set_dev(card, devptr);
 
-        if ((error = snd_card_register(card))) {
+        error = snd_miro_probe(card);
+        if (error < 0) {
                 snd_card_free(card);
                 return error;
         }
@@ -1447,7 +1467,8 @@ static int __devinit snd_miro_probe(struct device *devptr, unsigned int n)
         return 0;
 }
 
-static int __devexit snd_miro_remove(struct device *devptr, unsigned int dev)
+static int __devexit snd_miro_isa_remove(struct device *devptr,
+                                         unsigned int dev)
 {
         snd_card_free(dev_get_drvdata(devptr));
         dev_set_drvdata(devptr, NULL);
@@ -1457,9 +1478,9 @@ static int __devexit snd_miro_remove(struct device *devptr, unsigned int dev)
 #define DEV_NAME "miro"
 
 static struct isa_driver snd_miro_driver = {
-        .match          = snd_miro_match,
-        .probe          = snd_miro_probe,
-        .remove         = __devexit_p(snd_miro_remove),
+        .match          = snd_miro_isa_match,
+        .probe          = snd_miro_isa_probe,
+        .remove         = __devexit_p(snd_miro_isa_remove),
         /* FIXME: suspend/resume */
         .driver         = {
                 .name   = DEV_NAME