static void tinymix_detail_control(struct mixer *mixer, const char *control,
int print_all)
{
struct mixer_ctl *ctl;
enum mixer_ctl_type type;
unsigned int num_values;
unsigned int i;
int min, max;
if (isdigit(control[0]))
ctl = mixer_get_ctl(mixer, atoi(control));
else
ctl = mixer_get_ctl_by_name(mixer, control);
if (!ctl) {
fprintf(stderr, "Invalid mixer control\n");
return;
}
type = mixer_ctl_get_type(ctl);
num_values = mixer_ctl_get_num_values(ctl);
if (print_all)
printf("%s:", mixer_ctl_get_name(ctl));
for (i = 0; i < num_values; i++) {
switch (type)
{
case MIXER_CTL_TYPE_INT:
printf(" %d", mixer_ctl_get_value(ctl, i));
break;
case MIXER_CTL_TYPE_BOOL:
printf(" %s", mixer_ctl_get_value(ctl, i) ? "On" : "Off");
break;
case MIXER_CTL_TYPE_ENUM:
tinymix_print_enum(ctl, print_all);
break;
case MIXER_CTL_TYPE_BYTE:
printf(" 0x%02x", mixer_ctl_get_value(ctl, i));
break;
default:
printf(" unknown");
break;
};
}
if (print_all) {
if (type == MIXER_CTL_TYPE_INT) {
min = mixer_ctl_get_range_min(ctl);
max = mixer_ctl_get_range_max(ctl);
printf(" (range %d->%d)", min, max);
}
}
printf("\n");
}
static void tinymix_detail_control(struct mixer *mixer, unsigned int id,
int print_all)
{
struct mixer_ctl *ctl;
enum mixer_ctl_type type;
unsigned int num_values;
char buffer[256];
unsigned int i;
int min, max;
if (id >= mixer_get_num_ctls(mixer)) {
fprintf(stderr, "Invalid mixer control\n");
return;
}
ctl = mixer_get_ctl(mixer, id);
mixer_ctl_get_name(ctl, buffer, sizeof(buffer));
type = mixer_ctl_get_type(ctl);
num_values = mixer_ctl_get_num_values(ctl);
if (print_all)
printf("%s:", buffer);
for (i = 0; i < num_values; i++) {
switch (type)
{
case MIXER_CTL_TYPE_INT:
printf(" %d", mixer_ctl_get_value(ctl, i));
break;
case MIXER_CTL_TYPE_BOOL:
printf(" %s", mixer_ctl_get_value(ctl, i) ? "On" : "Off");
break;
case MIXER_CTL_TYPE_ENUM:
tinymix_print_enum(ctl, print_all);
break;
case MIXER_CTL_TYPE_BYTE:
printf(" 0x%02x", mixer_ctl_get_value(ctl, i));
break;
default:
printf(" unknown");
break;
};
}
if (print_all) {
if (type == MIXER_CTL_TYPE_INT) {
min = mixer_ctl_get_range_min(ctl);
max = mixer_ctl_get_range_max(ctl);
printf(" (range %d->%d)", min, max);
}
}
printf("\n");
}
int mixer_ctl_set_value(struct mixer_ctl *ctl, unsigned int id, int value)
{
struct snd_ctl_elem_value ev;
int ret;
if (!ctl || (id >= ctl->info.count))
return -EINVAL;
memset(&ev, 0, sizeof(ev));
ev.id.numid = ctl->info.id.numid;
ret = ioctl(ctl->mixer->fd, SNDRV_CTL_IOCTL_ELEM_READ, &ev);
if (ret < 0)
return ret;
switch (ctl->info.type) {
case SNDRV_CTL_ELEM_TYPE_BOOLEAN:
ev.value.integer.value[id] = !!value;
break;
case SNDRV_CTL_ELEM_TYPE_INTEGER:
if ((value < mixer_ctl_get_range_min(ctl)) ||
(value > mixer_ctl_get_range_max(ctl))) {
return -EINVAL;
}
ev.value.integer.value[id] = value;
break;
case SNDRV_CTL_ELEM_TYPE_ENUMERATED:
ev.value.enumerated.item[id] = value;
break;
case SNDRV_CTL_ELEM_TYPE_BYTES:
ev.value.bytes.data[id] = value;
break;
default:
return -EINVAL;
}
return ioctl(ctl->mixer->fd, SNDRV_CTL_IOCTL_ELEM_WRITE, &ev);
}
int read_range(int argc, char **argv) {
int nMixer = -1, nControl = -1;
int location = -1;
if (argc == 4) {
nMixer = atoi(argv[2]);
nControl = atoi(argv[3]);
}
if (argc != 4 || nMixer < 0 || nMixer > 7 || nControl < 0) {
printf("Usage: ainfo read-range <card number> <control number> <location>\n"
"where <card number> is between 0 and 7\n"
"<control number> is the control to be read\n");
return 0;
}
mixer *m = mixer_open(nMixer);
if (m == NULL) {
printf("Unable to open card #%d\n", nMixer);
return 0;
}
mixer_ctl *c = mixer_get_ctl(m, nControl);
if (c == NULL) {
printf("Unable to open control #%d\n", nControl);
return 0;
}
char name[64], type[64];
mixer_ctl_get_name(c, name, sizeof(name));
printf("Control: %s\nMin: %d\nMax: %d\n", name,
mixer_ctl_get_range_min(c), mixer_ctl_get_range_max(c));
return 0;
}
static void tinymix_detail_control(struct mixer *mixer, const char *control,
int print_all)
{
struct mixer_ctl *ctl;
enum mixer_ctl_type type;
unsigned int num_values;
unsigned int i;
int min, max;
int ret;
char *buf = NULL;
if (isdigit(control[0]))
ctl = mixer_get_ctl(mixer, atoi(control));
else
ctl = mixer_get_ctl_by_name(mixer, control);
if (!ctl) {
fprintf(stderr, "Invalid mixer control\n");
return;
}
type = mixer_ctl_get_type(ctl);
num_values = mixer_ctl_get_num_values(ctl);
if ((type == MIXER_CTL_TYPE_BYTE) && (num_values > 0)) {
buf = calloc(1, num_values);
if (buf == NULL) {
fprintf(stderr, "Failed to alloc mem for bytes %d\n", num_values);
return;
}
ret = mixer_ctl_get_array(ctl, buf, num_values);
if (ret < 0) {
fprintf(stderr, "Failed to mixer_ctl_get_array\n");
free(buf);
return;
}
}
if (print_all)
printf("%s:", mixer_ctl_get_name(ctl));
for (i = 0; i < num_values; i++) {
switch (type)
{
case MIXER_CTL_TYPE_INT:
printf(" %d", mixer_ctl_get_value(ctl, i));
break;
case MIXER_CTL_TYPE_BOOL:
printf(" %s", mixer_ctl_get_value(ctl, i) ? "On" : "Off");
break;
case MIXER_CTL_TYPE_ENUM:
tinymix_print_enum(ctl, print_all);
break;
case MIXER_CTL_TYPE_BYTE:
printf("%02x", buf[i]);
break;
default:
printf(" unknown");
break;
};
}
if (print_all) {
if (type == MIXER_CTL_TYPE_INT) {
min = mixer_ctl_get_range_min(ctl);
max = mixer_ctl_get_range_max(ctl);
printf(" (range %d->%d)", min, max);
}
}
free(buf);
printf("\n");
}
static void tinymix_detail_control(struct mixer *mixer, const char *control,
int print_all)
{
struct mixer_ctl *ctl;
enum mixer_ctl_type type;
unsigned int num_values;
unsigned int i;
int min, max;
int ret;
char buf[512] = { 0 };
size_t len;
if (isdigit(control[0]))
ctl = mixer_get_ctl(mixer, atoi(control));
else
ctl = mixer_get_ctl_by_name(mixer, control);
if (!ctl) {
fprintf(stderr, "Invalid mixer control\n");
return;
}
type = mixer_ctl_get_type(ctl);
num_values = mixer_ctl_get_num_values(ctl);
if (type == MIXER_CTL_TYPE_BYTE) {
len = num_values;
if (len > sizeof(buf)) {
fprintf(stderr, "Truncating get to %zu bytes\n", sizeof(buf));
len = sizeof(buf);
}
ret = mixer_ctl_get_array(ctl, buf, len);
if (ret < 0) {
fprintf(stderr, "Failed to mixer_ctl_get_array\n");
return;
}
}
if (print_all)
printf("%s:", mixer_ctl_get_name(ctl));
for (i = 0; i < num_values; i++) {
switch (type)
{
case MIXER_CTL_TYPE_INT:
printf(" %d", mixer_ctl_get_value(ctl, i));
break;
case MIXER_CTL_TYPE_BOOL:
printf(" %s", mixer_ctl_get_value(ctl, i) ? "On" : "Off");
break;
case MIXER_CTL_TYPE_ENUM:
tinymix_print_enum(ctl, print_all);
break;
case MIXER_CTL_TYPE_BYTE:
printf("%02x", buf[i]);
break;
default:
printf(" unknown");
break;
};
}
if (print_all) {
if (type == MIXER_CTL_TYPE_INT) {
min = mixer_ctl_get_range_min(ctl);
max = mixer_ctl_get_range_max(ctl);
printf(" (range %d->%d)", min, max);
}
}
printf("\n");
}
static void tinymix_detail_control(struct mixer *mixer, const char *control)
{
struct mixer_ctl *ctl;
enum mixer_ctl_type type;
unsigned int num_values;
unsigned int i;
int min, max;
int ret;
char *buf = NULL;
unsigned int tlv_header_size = 0;
if (isdigit(control[0]))
ctl = mixer_get_ctl(mixer, atoi(control));
else
ctl = mixer_get_ctl_by_name(mixer, control);
if (!ctl) {
fprintf(stderr, "Invalid mixer control\n");
return;
}
type = mixer_ctl_get_type(ctl);
num_values = mixer_ctl_get_num_values(ctl);
if ((type == MIXER_CTL_TYPE_BYTE) && (num_values > 0)) {
if (mixer_ctl_is_access_tlv_rw(ctl) != 0) {
tlv_header_size = TLV_HEADER_SIZE;
}
buf = calloc(1, num_values + tlv_header_size);
if (buf == NULL) {
fprintf(stderr, "Failed to alloc mem for bytes %u\n", num_values);
return;
}
ret = mixer_ctl_get_array(ctl, buf, num_values + tlv_header_size);
if (ret < 0) {
fprintf(stderr, "Failed to mixer_ctl_get_array\n");
free(buf);
return;
}
}
for (i = 0; i < num_values; i++) {
switch (type)
{
case MIXER_CTL_TYPE_INT:
printf("%d", mixer_ctl_get_value(ctl, i));
break;
case MIXER_CTL_TYPE_BOOL:
printf("%s", mixer_ctl_get_value(ctl, i) ? "On" : "Off");
break;
case MIXER_CTL_TYPE_ENUM:
tinymix_print_enum(ctl);
break;
case MIXER_CTL_TYPE_BYTE:
/* skip printing TLV header if exists */
printf(" %02x", buf[i + tlv_header_size]);
break;
default:
printf("unknown");
break;
};
if ((i + 1) < num_values) {
printf(", ");
}
}
if (type == MIXER_CTL_TYPE_INT) {
min = mixer_ctl_get_range_min(ctl);
max = mixer_ctl_get_range_max(ctl);
printf(" (range %d->%d)", min, max);
}
free(buf);
}
