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authorRene Herman <rene.herman@gmail.com>2007-02-19 15:01:45 +0300
committerJaroslav Kysela <perex@suse.cz>2007-05-11 18:55:39 +0400
commit019608b6379fcc3ba7f4db51540e509e93f4ab3c (patch)
tree08c94255a271616f3ed12c9d8178baabec65a2d8 /sound/isa/es1688
parent07e038b349f8fadf0b5c100dc9c3cab47327a244 (diff)
downloadlinux-019608b6379fcc3ba7f4db51540e509e93f4ab3c.tar.xz
[ALSA] es1688 - code clean-up
Seperate out the legacy probing into its own function, improving readability. Signed-off-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'sound/isa/es1688')
-rw-r--r--sound/isa/es1688/es1688.c86
1 files changed, 50 insertions, 36 deletions
diff --git a/sound/isa/es1688/es1688.c b/sound/isa/es1688/es1688.c
index f7d0c5fab5d9..edc398712e8b 100644
--- a/sound/isa/es1688/es1688.c
+++ b/sound/isa/es1688/es1688.c
@@ -77,13 +77,48 @@ static int __devinit snd_es1688_match(struct device *dev, unsigned int n)
return enable[n];
}
-static int __devinit snd_es1688_probe(struct device *dev, unsigned int n)
+static int __devinit snd_es1688_legacy_create(struct snd_card *card,
+ struct device *dev, unsigned int n, struct snd_es1688 **rchip)
{
- static unsigned long possible_ports[] = {0x220, 0x240, 0x260};
+ static long possible_ports[] = {0x220, 0x240, 0x260};
static int possible_irqs[] = {5, 9, 10, 7, -1};
static int possible_dmas[] = {1, 3, 0, -1};
- int i, xirq, xdma;
+ int i, error;
+
+ if (irq[n] == SNDRV_AUTO_IRQ) {
+ irq[n] = snd_legacy_find_free_irq(possible_irqs);
+ if (irq[n] < 0) {
+ snd_printk(KERN_ERR "%s: unable to find a free IRQ\n",
+ dev->bus_id);
+ return -EBUSY;
+ }
+ }
+ if (dma8[n] == SNDRV_AUTO_DMA) {
+ dma8[n] = snd_legacy_find_free_dma(possible_dmas);
+ if (dma8[n] < 0) {
+ snd_printk(KERN_ERR "%s: unable to find a free DMA\n",
+ dev->bus_id);
+ return -EBUSY;
+ }
+ }
+
+ if (port[n] != SNDRV_AUTO_PORT)
+ return snd_es1688_create(card, port[n], mpu_port[n], irq[n],
+ mpu_irq[n], dma8[n], ES1688_HW_AUTO, rchip);
+
+ i = 0;
+ do {
+ port[n] = possible_ports[i];
+ error = snd_es1688_create(card, port[n], mpu_port[n], irq[n],
+ mpu_irq[n], dma8[n], ES1688_HW_AUTO, rchip);
+ } while (error < 0 && ++i < ARRAY_SIZE(possible_ports));
+
+ return error;
+}
+
+static int __devinit snd_es1688_probe(struct device *dev, unsigned int n)
+{
struct snd_card *card;
struct snd_es1688 *chip;
struct snd_opl3 *opl3;
@@ -94,33 +129,7 @@ static int __devinit snd_es1688_probe(struct device *dev, unsigned int n)
if (!card)
return -EINVAL;
- error = -EBUSY;
-
- xirq = irq[n];
- if (xirq == SNDRV_AUTO_IRQ) {
- xirq = snd_legacy_find_free_irq(possible_irqs);
- if (xirq < 0) {
- snd_printk(KERN_ERR "%s: unable to find a free IRQ\n", dev->bus_id);
- goto out;
- }
- }
-
- xdma = dma8[n];
- if (xdma == SNDRV_AUTO_DMA) {
- xdma = snd_legacy_find_free_dma(possible_dmas);
- if (xdma < 0) {
- snd_printk(KERN_ERR "%s: unable to find a free DMA\n", dev->bus_id);
- goto out;
- }
- }
-
- if (port[n] == SNDRV_AUTO_PORT)
- for (i = 0; i < ARRAY_SIZE(possible_ports) && error < 0; i++)
- error = snd_es1688_create(card, possible_ports[i], mpu_port[n],
- xirq, mpu_irq[n], xdma, ES1688_HW_AUTO, &chip);
- else
- error = snd_es1688_create(card, port[n], mpu_port[n],
- xirq, mpu_irq[n], xdma, ES1688_HW_AUTO, &chip);
+ error = snd_es1688_legacy_create(card, dev, n, &chip);
if (error < 0)
goto out;
@@ -134,19 +143,24 @@ static int __devinit snd_es1688_probe(struct device *dev, unsigned int n)
strcpy(card->driver, "ES1688");
strcpy(card->shortname, pcm->name);
- sprintf(card->longname, "%s at 0x%lx, irq %i, dma %i", pcm->name, chip->port, xirq, xdma);
+ sprintf(card->longname, "%s at 0x%lx, irq %i, dma %i", pcm->name,
+ chip->port, chip->irq, chip->dma8);
- if (snd_opl3_create(card, chip->port, chip->port + 2, OPL3_HW_OPL3, 0, &opl3) < 0)
- printk(KERN_WARNING "%s: opl3 not detected at 0x%lx\n", dev->bus_id, chip->port);
+ if (snd_opl3_create(card, chip->port, chip->port + 2,
+ OPL3_HW_OPL3, 0, &opl3) < 0)
+ printk(KERN_WARNING "%s: opl3 not detected at 0x%lx\n",
+ dev->bus_id, chip->port);
else {
error = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
if (error < 0)
goto out;
}
- if (mpu_irq[n] >= 0 && mpu_irq[n] != SNDRV_AUTO_IRQ && chip->mpu_port > 0) {
- error = snd_mpu401_uart_new(card, 0, MPU401_HW_ES1688, chip->mpu_port,
- 0, mpu_irq[n], IRQF_DISABLED, NULL);
+ if (mpu_irq[n] >= 0 && mpu_irq[n] != SNDRV_AUTO_IRQ &&
+ chip->mpu_port > 0) {
+ error = snd_mpu401_uart_new(card, 0, MPU401_HW_ES1688,
+ chip->mpu_port, 0,
+ mpu_irq[n], IRQF_DISABLED, NULL);
if (error < 0)
goto out;
}