ALSA: lola - Allow granularity changes

Add some sanity checks.
Change PCM parameters appropriately per granularity.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 22 insertions, 5 deletions

diff --git a/sound/pci/lola/lola.c b/sound/pci/lola/lola.c
index 3d2516b11f22..8ee22bee10c9 100644
--- a/sound/pci/lola/lola.c
+++ b/sound/pci/lola/lola.c
@@ -587,14 +587,31 @@ static int __devinit lola_create(struct snd_card *card, struct pci_dev *pci,
         chip->pci = pci;
         chip->irq = -1;
 
-        chip->sample_rate_min = sample_rate_min[dev];
         chip->granularity = granularity[dev];
-        /* FIXME */
-        if (chip->granularity != LOLA_GRANULARITY_MAX) {
+        switch (chip->granularity) {
+        case 8:
+                chip->sample_rate_max = 48000;
+                break;
+        case 16:
+                chip->sample_rate_max = 96000;
+                break;
+        case 32:
+                chip->sample_rate_max = 192000;
+                break;
+        default:
                 snd_printk(KERN_WARNING SFX
-                           "Only %d granularity is supported for now\n",
-                           LOLA_GRANULARITY_MAX);
+                           "Invalid granularity %d, reset to %d\n",
+                           chip->granularity, LOLA_GRANULARITY_MAX);
                 chip->granularity = LOLA_GRANULARITY_MAX;
+                chip->sample_rate_max = 192000;
+                break;
+        }
+        chip->sample_rate_min = sample_rate_min[dev];
+        if (chip->sample_rate_min > chip->sample_rate_max) {
+                snd_printk(KERN_WARNING SFX
+                           "Invalid sample_rate_min %d, reset to 16000\n",
+                           chip->sample_rate_min);
+                chip->sample_rate_min = 16000;
         }
 
         err = pci_request_regions(pci, DRVNAME);