diff options
Diffstat (limited to 'slstatuso/components/volume.c')
| -rwxr-xr-x | slstatuso/components/volume.c | 219 |
1 files changed, 0 insertions, 219 deletions
diff --git a/slstatuso/components/volume.c b/slstatuso/components/volume.c deleted file mode 100755 index 6cec556..0000000 --- a/slstatuso/components/volume.c +++ /dev/null @@ -1,219 +0,0 @@ -/* See LICENSE file for copyright and license details. */ -#include <fcntl.h> -#include <stdio.h> -#include <string.h> -#include <sys/ioctl.h> -#include <unistd.h> - -#include "../slstatus.h" -#include "../util.h" - -#if defined(__OpenBSD__) | defined(__FreeBSD__) - #include <poll.h> - #include <sndio.h> - #include <stdlib.h> - #include <sys/queue.h> - - struct control { - LIST_ENTRY(control) next; - unsigned int addr; - #define CTRL_NONE 0 - #define CTRL_LEVEL 1 - #define CTRL_MUTE 2 - unsigned int type; - unsigned int maxval; - unsigned int val; - }; - - static LIST_HEAD(, control) controls = LIST_HEAD_INITIALIZER(controls); - static struct pollfd *pfds; - static struct sioctl_hdl *hdl; - static int initialized; - - /* - * Call-back to obtain the description of all audio controls. - */ - static void - ondesc(void *unused, struct sioctl_desc *desc, int val) - { - struct control *c, *ctmp; - unsigned int type = CTRL_NONE; - - if (desc == NULL) - return; - - /* Delete existing audio control with the same address. */ - LIST_FOREACH_SAFE(c, &controls, next, ctmp) { - if (desc->addr == c->addr) { - LIST_REMOVE(c, next); - free(c); - break; - } - } - - /* Only match output.level and output.mute audio controls. */ - if (desc->group[0] != 0 || - strcmp(desc->node0.name, "output") != 0) - return; - if (desc->type == SIOCTL_NUM && - strcmp(desc->func, "level") == 0) - type = CTRL_LEVEL; - else if (desc->type == SIOCTL_SW && - strcmp(desc->func, "mute") == 0) - type = CTRL_MUTE; - else - return; - - c = malloc(sizeof(struct control)); - if (c == NULL) { - warn("sndio: failed to allocate audio control\n"); - return; - } - - c->addr = desc->addr; - c->type = type; - c->maxval = desc->maxval; - c->val = val; - LIST_INSERT_HEAD(&controls, c, next); - } - - /* - * Call-back invoked whenever an audio control changes. - */ - static void - onval(void *unused, unsigned int addr, unsigned int val) - { - struct control *c; - - LIST_FOREACH(c, &controls, next) { - if (c->addr == addr) - break; - } - c->val = val; - } - - static void - cleanup(void) - { - struct control *c; - - if (hdl) { - sioctl_close(hdl); - hdl = NULL; - } - - free(pfds); - pfds = NULL; - - while (!LIST_EMPTY(&controls)) { - c = LIST_FIRST(&controls); - LIST_REMOVE(c, next); - free(c); - } - } - - static int - init(void) - { - hdl = sioctl_open(SIO_DEVANY, SIOCTL_READ, 0); - if (hdl == NULL) { - warn("sndio: cannot open device"); - goto failed; - } - - if (!sioctl_ondesc(hdl, ondesc, NULL)) { - warn("sndio: cannot set control description call-back"); - goto failed; - } - - if (!sioctl_onval(hdl, onval, NULL)) { - warn("sndio: cannot set control values call-back"); - goto failed; - } - - pfds = calloc(sioctl_nfds(hdl), sizeof(struct pollfd)); - if (pfds == NULL) { - warn("sndio: cannot allocate pollfd structures"); - goto failed; - } - - return 1; - failed: - cleanup(); - return 0; - } - - const char * - vol_perc(const char *unused) - { - struct control *c; - int n, v, value; - - if (!initialized) - initialized = init(); - - if (hdl == NULL) - return NULL; - - n = sioctl_pollfd(hdl, pfds, POLLIN); - if (n > 0) { - n = poll(pfds, n, 0); - if (n > 0) { - if (sioctl_revents(hdl, pfds) & POLLHUP) { - warn("sndio: disconnected"); - cleanup(); - initialized = 0; - return NULL; - } - } - } - - value = 100; - LIST_FOREACH(c, &controls, next) { - if (c->type == CTRL_MUTE && c->val == 1) - value = 0; - else if (c->type == CTRL_LEVEL) { - v = (c->val * 100 + c->maxval / 2) / c->maxval; - /* For multiple channels return the minimum. */ - if (v < value) - value = v; - } - } - - return bprintf("%d", value); - } -#else - #include <sys/soundcard.h> - - const char * - vol_perc(const char *card) - { - size_t i; - int v, afd, devmask; - char *vnames[] = SOUND_DEVICE_NAMES; - - if ((afd = open(card, O_RDONLY | O_NONBLOCK)) < 0) { - warn("open '%s':", card); - return NULL; - } - - if (ioctl(afd, (int)SOUND_MIXER_READ_DEVMASK, &devmask) < 0) { - warn("ioctl 'SOUND_MIXER_READ_DEVMASK':"); - close(afd); - return NULL; - } - for (i = 0; i < LEN(vnames); i++) { - if (devmask & (1 << i) && !strcmp("vol", vnames[i])) { - if (ioctl(afd, MIXER_READ(i), &v) < 0) { - warn("ioctl 'MIXER_READ(%ld)':", i); - close(afd); - return NULL; - } - } - } - - close(afd); - - return bprintf("%d", v & 0xff); - } -#endif |