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Commit fe3d393e authored by Takashi Iwai's avatar Takashi Iwai
Browse files

ALSA: lola - Add Lola-specific module options 



Added granularity and sample_rate_min module options.

The former controls the h/w access granularity.  As default, it's set
to the max value 32.

The latter controls the minimum sample rate in Hz, as default 16000.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 0f8f56c9

sound/pci/lola/lola.c

+35 −10
Original line number Diff line number Diff line
@@ -32,6 +32,7 @@ 
#include <sound/initval.h>

#include "lola.h"



/* Standard options */

static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;

static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;

static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
@@ -43,6 +44,28 @@ MODULE_PARM_DESC(id, "ID string for Digigram Lola driver."); 
module_param_array(enable, bool, NULL, 0444);

MODULE_PARM_DESC(enable, "Enable Digigram Lola driver.");



/* Lola-specific options */



/* for instance use always max granularity which is compatible

 * with all sample rates

 */

static int granularity[SNDRV_CARDS] = {

	[0 ... (SNDRV_CARDS - 1)] = LOLA_GRANULARITY_MAX

};



/* below a sample_rate of 16kHz the analogue audio quality is NOT excellent */

static int sample_rate_min[SNDRV_CARDS] = {

	[0 ... (SNDRV_CARDS - 1) ] = 16000

};



module_param_array(granularity, int, NULL, 0444);

MODULE_PARM_DESC(granularity, "Granularity value");

module_param_array(sample_rate_min, int, NULL, 0444);

MODULE_PARM_DESC(sample_rate_min, "Minimal sample rate");



/*

 */



MODULE_LICENSE("GPL");

MODULE_SUPPORTED_DEVICE("{{Digigram, Lola}}");

MODULE_DESCRIPTION("Digigram Lola driver");
@@ -536,7 +559,7 @@ static int lola_dev_free(struct snd_device *device) 
}



static int __devinit lola_create(struct snd_card *card, struct pci_dev *pci,

				 struct lola **rchip)

				 int dev, struct lola **rchip)

{

	struct lola *chip;

	int err;
@@ -564,14 +587,16 @@ static int __devinit lola_create(struct snd_card *card, struct pci_dev *pci, 
	chip->pci = pci;

	chip->irq = -1;



	/* below a sample_rate of 16kHz the analogue audio quality

	 * is NOT excellent

	 */

	chip->sample_rate_min = 16000;

	/* for instance use always max granularity which is compatible

	 * with all sample rates

	 */

	chip->sample_rate_min = sample_rate_min[dev];



	chip->granularity = granularity[dev];

	/* FIXME */

	if (chip->granularity != LOLA_GRANULARITY_MAX) {

		snd_printk(KERN_WARNING SFX

			   "Only %d granularity is supported for now\n",

			   LOLA_GRANULARITY_MAX);

		chip->granularity = LOLA_GRANULARITY_MAX;

	}



	err = pci_request_regions(pci, DRVNAME);

	if (err < 0) {
@@ -674,7 +699,7 @@ static int __devinit lola_probe(struct pci_dev *pci, 


	snd_card_set_dev(card, &pci->dev);



	err = lola_create(card, pci, &chip);

	err = lola_create(card, pci, dev, &chip);

	if (err < 0)

		goto out_free;

	card->private_data = chip;