void vidc_mixer_init(struct address_info *hw_config)
{
int vidc_mixer = sound_alloc_mixerdev();
vidc_volume = 100 | (100 << 8);
if (num_mixers < MAX_MIXER_DEV)
mixer_devs[vidc_mixer] = &vidc_mixer_operations;
}
/* Installs the AC97 mixer into CARD. */
static int __init
nm256_install_mixer (struct nm256_info *card)
{
int mixer;
card->mdev.reset_device = nm256_resetAC97;
card->mdev.read_reg = nm256_readAC97Reg;
card->mdev.write_reg = nm256_writeAC97Reg;
card->mdev.driver_private = (void *)card;
if (ac97_init (&(card->mdev)))
return -1;
mixer = sound_alloc_mixerdev();
if (num_mixers >= MAX_MIXER_DEV) {
printk ("NM256 mixer: Unable to alloc mixerdev\n");
return -1;
}
mixer_devs[mixer] = &nm256_mixer_operations;
card->mixer_oss_dev = mixer;
/* Some reasonable default values. */
ac97_set_values (&(card->mdev), mixer_defaults);
printk(KERN_INFO "Initialized AC97 mixer\n");
return 0;
}
int sound_install_mixer(int vers, char *name, struct mixer_operations *driver,
int driver_size, void *devc)
{
struct mixer_operations *op;
int n = sound_alloc_mixerdev();
if (n == -1) {
printk(KERN_ERR "Sound: Too many mixer drivers\n");
return -EBUSY;
}
if (vers != MIXER_DRIVER_VERSION ||
driver_size > sizeof(struct mixer_operations)) {
printk(KERN_ERR "Sound: Incompatible mixer driver for %s\n", name);
return -EINVAL;
}
/* FIXME: This leaks a mixer_operations struct every time its called
until you unload sound! */
op = (struct mixer_operations *) (sound_mem_blocks[sound_nblocks] = vmalloc(sizeof(struct mixer_operations)));
if (sound_nblocks < 1024)
sound_nblocks++;
if (op == NULL) {
printk(KERN_ERR "Sound: Can't allocate mixer driver for (%s)\n", name);
return -ENOMEM;
}
memset((char *) op, 0, sizeof(struct mixer_operations));
memcpy((char *) op, (char *) driver, driver_size);
strlcpy(op->name, name, sizeof(op->name));
op->devc = devc;
mixer_devs[n] = op;
return n;
}
int sound_install_mixer(int vers, char *name, struct mixer_operations *driver,
int driver_size, void *devc)
{
struct mixer_operations *op;
int n = sound_alloc_mixerdev();
if (n == -1) {
printk(KERN_ERR "Sound: Too many mixer drivers\n");
return -EBUSY;
}
if (vers != MIXER_DRIVER_VERSION ||
driver_size > sizeof(struct mixer_operations)) {
printk(KERN_ERR "Sound: Incompatible mixer driver for %s\n", name);
return -EINVAL;
}
/*
*/
op = (struct mixer_operations *) (sound_mem_blocks[sound_nblocks] = vzalloc(sizeof(struct mixer_operations)));
sound_nblocks++;
if (sound_nblocks >= MAX_MEM_BLOCKS)
sound_nblocks = MAX_MEM_BLOCKS - 1;
if (op == NULL) {
printk(KERN_ERR "Sound: Can't allocate mixer driver for (%s)\n", name);
return -ENOMEM;
}
memcpy((char *) op, (char *) driver, driver_size);
strlcpy(op->name, name, sizeof(op->name));
op->devc = devc;
mixer_devs[n] = op;
return n;
}
