mirror of
https://github.com/alsa-project/alsa-lib.git
synced 2025-10-29 05:40:25 -04:00
New universal switch v2.0 interface.
This commit is contained in:
Jaroslav Kysela
parent
e735bf70dd
commit
3f541735e3
9 changed files with 416 additions and 740 deletions
362
test/switches.c
362
test/switches.c
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@ -1,36 +1,177 @@
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#include <stdio.h>
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#include <string.h>
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#include <malloc.h>
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#include <errno.h>
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#include "../include/asoundlib.h"
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static void *ctl_handle;
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static int sw_interface;
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static int sw_device;
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const char *get_type(unsigned int type)
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{
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switch (type) {
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case 0:
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case SND_SW_TYPE_BOOLEAN:
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return "Boolean";
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case 1:
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case SND_SW_TYPE_BYTE:
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return "Byte";
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case 2:
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case SND_SW_TYPE_WORD:
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return "Word";
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case 3:
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return "DWord";
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case 4:
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case SND_SW_TYPE_DWORD:
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return "Double Word";
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case SND_SW_TYPE_LIST:
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return "List";
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case SND_SW_TYPE_LIST_ITEM:
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return "List Item";
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case SND_SW_TYPE_USER:
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return "User";
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default:
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return "Unknown";
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}
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}
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const char *get_interface(void)
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{
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switch (sw_interface) {
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case 0:
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return "control";
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case 1:
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return "mixer";
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case 2:
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return "PCM playback";
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case 3:
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return "PCM record";
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case 4:
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return "rawmidi output";
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case 5:
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return "rawmidi input";
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default:
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return "unknown";
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}
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}
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int switch_list(snd_switch_list_t *list)
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{
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switch (sw_interface) {
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case 0:
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return snd_ctl_switch_list(ctl_handle, list);
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case 1:
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return snd_ctl_mixer_switch_list(ctl_handle, sw_device, list);
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case 2:
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return snd_ctl_pcm_playback_switch_list(ctl_handle, sw_device, list);
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case 3:
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return snd_ctl_pcm_record_switch_list(ctl_handle, sw_device, list);
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case 4:
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return snd_ctl_rawmidi_output_switch_list(ctl_handle, sw_device, list);
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case 5:
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return snd_ctl_rawmidi_input_switch_list(ctl_handle, sw_device, list);
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default:
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return -ENOLINK;
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}
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}
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int switch_read(snd_switch_t *sw)
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{
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switch (sw_interface) {
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case 0:
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return snd_ctl_switch_read(ctl_handle, sw);
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case 1:
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return snd_ctl_mixer_switch_read(ctl_handle, sw_device, sw);
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case 2:
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return snd_ctl_pcm_playback_switch_read(ctl_handle, sw_device, sw);
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case 3:
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return snd_ctl_pcm_record_switch_write(ctl_handle, sw_device, sw);
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case 4:
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return snd_ctl_rawmidi_output_switch_read(ctl_handle, sw_device, sw);
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case 5:
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return snd_ctl_rawmidi_input_switch_read(ctl_handle, sw_device, sw);
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default:
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return -ENOLINK;
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}
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}
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int switch_write(snd_switch_t *sw)
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{
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switch (sw_interface) {
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case 0:
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return snd_ctl_switch_write(ctl_handle, sw);
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case 1:
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return snd_ctl_mixer_switch_write(ctl_handle, sw_device, sw);
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case 2:
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return snd_ctl_pcm_playback_switch_write(ctl_handle, sw_device, sw);
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case 3:
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return snd_ctl_pcm_record_switch_write(ctl_handle, sw_device, sw);
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case 4:
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return snd_ctl_rawmidi_output_switch_write(ctl_handle, sw_device, sw);
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case 5:
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return snd_ctl_rawmidi_input_switch_write(ctl_handle, sw_device, sw);
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default:
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return -ENOLINK;
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}
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}
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void print_switch(char *space, char *prefix, snd_switch_t *sw)
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{
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snd_switch_t sw1;
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int low, err;
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printf("%s%s : '%s' [%s]\n", space, prefix, sw->name, get_type(sw->type));
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if (sw->type == SND_SW_TYPE_LIST) {
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for (low = sw->low; low <= sw->high; low++) {
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memcpy(&sw1, sw, sizeof(sw1));
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sw1.type = SND_SW_TYPE_LIST_ITEM;
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sw1.low = sw1.high = low;
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if ((err = switch_read(&sw1)) < 0) {
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printf("Switch list item read failed for %s interface and device %i: %s\n", get_interface(), sw_device, snd_strerror(err));
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continue;
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}
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printf(" %s%s : '%s' [%s] {%s}\n", space, prefix, sw1.name, get_type(sw1.type), sw1.value.item);
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}
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}
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}
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void process(char *space, char *prefix, int interface, int device)
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{
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snd_switch_list_t list;
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snd_switch_t sw;
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int err, idx;
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sw_interface = interface;
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sw_device = device;
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bzero(&list, sizeof(list));
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if ((err = switch_list(&list)) < 0) {
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printf("Switch listing failed for the %s interface and the device %i: %s\n", get_interface(), device, snd_strerror(err));
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return;
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}
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if (list.switches_over <= 0)
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return;
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list.switches_size = list.switches_over + 16;
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list.switches = list.switches_over = 0;
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list.pswitches = malloc(sizeof(snd_switch_list_item_t) * list.switches_size);
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if (!list.pswitches) {
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printf("No enough memory... (%i switches)\n", list.switches_size);
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return;
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}
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if ((err = switch_list(&list)) < 0) {
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printf("Second switch listing failed for the %s interface and the device %i: %s\n", get_interface(), device, snd_strerror(err));
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return;
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}
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for (idx = 0; idx < list.switches; idx++) {
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bzero(&sw, sizeof(sw));
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strncpy(sw.name, list.pswitches[idx].name, sizeof(sw.name));
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if ((err = switch_read(&sw)) < 0) {
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printf("Switch read failed for the %s interface and the device %i: %s\n", get_interface(), device, snd_strerror(err));
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continue;
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}
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print_switch(space, prefix, &sw);
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}
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free(list.pswitches);
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}
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void main(void)
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{
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int cards, card, device, direction, idx, count, err;
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void *handle, *chandle;
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struct snd_ctl_hw_info info;
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struct snd_ctl_switch ctl_switch;
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snd_mixer_switch_t mixer_switch;
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snd_pcm_info_t pcm_info;
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snd_pcm_switch_t pcm_switch;
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snd_rawmidi_switch_t rmidi_switch;
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snd_rawmidi_info_t rmidi_info;
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int cards, card, err, idx;
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snd_ctl_hw_info_t info;
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cards = snd_cards();
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printf("Detected %i soundcard%s...\n", cards, cards > 1 ? "s" : "");
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@ -40,191 +181,22 @@ void main(void)
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}
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/* control interface */
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for (card = 0; card < cards; card++) {
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if ((err = snd_ctl_open(&handle, card)) < 0) {
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if ((err = snd_ctl_open(&ctl_handle, card)) < 0) {
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printf("CTL open error: %s\n", snd_strerror(err));
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continue;
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}
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if ((err = snd_ctl_hw_info(handle, &info)) < 0) {
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printf("CTL hw info error: %s\n", snd_strerror(err));
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if ((err = snd_ctl_hw_info(ctl_handle, &info)) < 0) {
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printf("HWINFO error: %s\n", snd_strerror(err));
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continue;
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}
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if ((count = snd_ctl_switches(handle)) < 0) {
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printf("CTL switches error: %s\n", snd_strerror(count));
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continue;
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printf("CARD %i:\n", card);
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process(" ", "Control", 0, 0);
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for (idx = 0; idx < info.mixerdevs; idx++)
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process(" ", "Mixer", 1, idx);
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for (idx = 0; idx < info.pcmdevs; idx++) {
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process(" ", "PCM playback", 2, idx);
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process(" ", "PCM record", 3, idx);
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}
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for (idx = 0; idx < count; idx++) {
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if ((err = snd_ctl_switch_read(handle, idx, &ctl_switch)) < 0) {
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printf("CTL switch read error: %s\n", snd_strerror(count));
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continue;
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}
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printf("CTL switch: '%s' %s (%i-%i)\n", ctl_switch.name, get_type(ctl_switch.type), ctl_switch.low, ctl_switch.high);
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if ((err = snd_ctl_switch_write(handle, idx, &ctl_switch)) < 0) {
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printf("CTL switch write error: %s\n", snd_strerror(count));
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continue;
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}
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}
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if (count <= 0)
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printf("No CTL switches detected for soundcard #%i '%s'...\n", idx, info.name);
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snd_ctl_close(handle);
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snd_ctl_close(ctl_handle);
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}
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/* mixer interface */
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for (card = 0; card < cards; card++) {
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if ((err = snd_ctl_open(&handle, card)) < 0) {
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printf("CTL open error: %s\n", snd_strerror(err));
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continue;
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}
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if ((err = snd_ctl_hw_info(handle, &info)) < 0) {
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printf("CTL hw info error: %s\n", snd_strerror(err));
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continue;
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}
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snd_ctl_close(handle);
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for (device = 0; device < info.mixerdevs; device++) {
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if ((err = snd_mixer_open(&handle, card, device)) < 0) {
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printf("Mixer open error: %s\n", snd_strerror(err));
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continue;
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}
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if ((count = snd_mixer_switches(handle)) < 0) {
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printf("Mixer switches error: %s\n", snd_strerror(count));
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continue;
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}
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for (idx = 0; idx < count; idx++) {
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if ((err = snd_mixer_switch_read(handle, idx, &mixer_switch)) < 0) {
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printf("Mixer switch read error: %s\n", snd_strerror(count));
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continue;
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}
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printf("Mixer switch: '%s' %s (%i-%i)\n", mixer_switch.name, get_type(mixer_switch.type), mixer_switch.low, mixer_switch.high);
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if ((err = snd_mixer_switch_write(handle, idx, &mixer_switch)) < 0) {
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printf("Mixer switch write error: %s\n", snd_strerror(count));
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continue;
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}
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}
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if (count <= 0)
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printf("No mixer switches detected for soundcard #%i '%s'...\n", idx, info.name);
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snd_mixer_close(handle);
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}
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}
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/* pcm switches */
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for (card = 0; card < cards; card++) {
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if ((err = snd_ctl_open(&chandle, card)) < 0) {
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printf("CTL open error: %s\n", snd_strerror(err));
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continue;
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}
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if ((err = snd_ctl_hw_info(chandle, &info)) < 0) {
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printf("CTL hw info error: %s\n", snd_strerror(err));
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continue;
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}
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for (device = 0; device < info.pcmdevs; device++) {
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if ((err = snd_ctl_pcm_info(chandle, device, &pcm_info)) < 0) {
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printf("CTL PCM info error: %s\n", snd_strerror(err));
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continue;
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}
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for (direction = 0; direction < 2; direction++) {
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int (*switches) (void *handle);
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int (*switch_read) (void *handle, int switchn, snd_pcm_switch_t * data);
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int (*switch_write) (void *handle, int switchn, snd_pcm_switch_t * data);
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char *str;
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if (!(pcm_info.flags & (!direction ? SND_PCM_INFO_PLAYBACK : SND_PCM_INFO_RECORD)))
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continue;
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if ((err = snd_pcm_open(&handle, card, device, !direction ? SND_PCM_OPEN_PLAYBACK : SND_PCM_OPEN_RECORD)) < 0) {
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printf("PCM open error: %s\n", snd_strerror(err));
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continue;
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}
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if (!direction) {
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switches = snd_pcm_playback_switches;
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switch_read = snd_pcm_playback_switch_read;
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switch_write = snd_pcm_playback_switch_write;
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str = "playback";
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} else {
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switches = snd_pcm_record_switches;
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switch_read = snd_pcm_record_switch_read;
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switch_write = snd_pcm_record_switch_write;
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str = "record";
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}
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if ((count = switches(handle)) < 0) {
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printf("PCM %s switches error: %s\n", str, snd_strerror(count));
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continue;
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}
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for (idx = 0; idx < count; idx++) {
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if ((err = switch_read(handle, idx, &pcm_switch)) < 0) {
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printf("PCM %s switch read error: %s\n", str, snd_strerror(count));
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continue;
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}
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printf("PCM switch: '%s' %s (%i-%i)\n", pcm_switch.name, get_type(pcm_switch.type), pcm_switch.low, pcm_switch.high);
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if ((err = switch_write(handle, idx, &pcm_switch)) < 0) {
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printf("PCM %s switch write error: %s\n", str, snd_strerror(count));
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continue;
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}
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}
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if (count <= 0)
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printf("No PCM %s switches detected for soundcard #%i/#%i '%s'/'%s'...\n", str, idx, device, info.name, pcm_info.name);
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snd_pcm_close(handle);
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}
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}
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snd_ctl_close(chandle);
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}
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/* rawmidi switches */
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for (card = 0; card < cards; card++) {
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if ((err = snd_ctl_open(&chandle, card)) < 0) {
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printf("CTL open error: %s\n", snd_strerror(err));
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continue;
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}
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if ((err = snd_ctl_hw_info(chandle, &info)) < 0) {
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printf("CTL hw info error: %s\n", snd_strerror(err));
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continue;
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}
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for (device = 0; device < info.mididevs; device++) {
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if ((err = snd_ctl_rawmidi_info(chandle, device, &rmidi_info)) < 0) {
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printf("CTL RawMIDI info error: %s\n", snd_strerror(err));
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continue;
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}
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for (direction = 0; direction < 2; direction++) {
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int (*switches) (void *handle);
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int (*switch_read) (void *handle, int switchn, snd_rawmidi_switch_t * data);
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int (*switch_write) (void *handle, int switchn, snd_rawmidi_switch_t * data);
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char *str;
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if (!(pcm_info.flags & (!direction ? SND_RAWMIDI_INFO_OUTPUT : SND_RAWMIDI_INFO_INPUT)))
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continue;
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if ((err = snd_rawmidi_open(&handle, card, device, !direction ? SND_RAWMIDI_OPEN_OUTPUT : SND_RAWMIDI_OPEN_INPUT)) < 0) {
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printf("RawMIDI CTL open error: %s\n", snd_strerror(err));
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continue;
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}
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if (!direction) {
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switches = snd_rawmidi_output_switches;
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switch_read = snd_rawmidi_output_switch_read;
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switch_write = snd_rawmidi_output_switch_write;
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str = "output";
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} else {
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switches = snd_rawmidi_input_switches;
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switch_read = snd_rawmidi_input_switch_read;
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switch_write = snd_rawmidi_input_switch_write;
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str = "input";
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}
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if ((count = switches(handle)) < 0) {
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printf("RawMIDI %s switches error: %s\n", str, snd_strerror(count));
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continue;
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}
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for (idx = 0; idx < count; idx++) {
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if ((err = switch_read(handle, idx, &rmidi_switch)) < 0) {
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printf("RawMIDI %s switch read error: %s\n", str, snd_strerror(count));
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continue;
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}
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printf("RawMIDI switch: '%s' %s (%i-%i)\n", rmidi_switch.name, get_type(rmidi_switch.type), rmidi_switch.low, rmidi_switch.high);
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if ((err = switch_write(handle, idx, &rmidi_switch)) < 0) {
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printf("RawMIDI %s switch write error: %s\n", str, snd_strerror(count));
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continue;
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}
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}
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if (count <= 0)
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printf("No RawMIDI %s switches detected for soundcard #%i/#%i '%s'/'%s'...\n", str, idx, device, info.name, rmidi_info.name);
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snd_rawmidi_close(handle);
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}
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}
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snd_ctl_close(chandle);
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}
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}
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