static int cset(int argc, char *argv[], int roflag, int keep_handle) { int err; static snd_ctl_t *handle = NULL; snd_ctl_elem_info_t *info; snd_ctl_elem_id_t *id; snd_ctl_elem_value_t *control; char *ptr; unsigned int idx, count; long tmp; snd_ctl_elem_type_t type; snd_ctl_elem_info_alloca(&info); snd_ctl_elem_id_alloca(&id); snd_ctl_elem_value_alloca(&control); if (argc < 1) return -EINVAL; if (parse_control_id(argv[0], id)) return -EINVAL; if (handle == NULL && (err = snd_ctl_open(&handle, card, 0)) < 0) return err; snd_ctl_elem_info_set_id(info, id); if ((err = snd_ctl_elem_info(handle, info)) < 0) { if (!keep_handle) { snd_ctl_close(handle); handle = NULL; } return err; } snd_ctl_elem_info_get_id(info, id); type = snd_ctl_elem_info_get_type(info); count = snd_ctl_elem_info_get_count(info); snd_ctl_elem_value_set_id(control, id); if (!roflag) { ptr = argv[1]; for (idx = 0; idx < count && idx < 128 && ptr && *ptr; idx++) { switch (type) { case SND_CTL_ELEM_TYPE_BOOLEAN: tmp = 0; if (!strncasecmp(ptr, "on", 2) || !strncasecmp(ptr, "up", 2)) { tmp = 1; ptr += 2; } else if (!strncasecmp(ptr, "yes", 3)) { tmp = 1; ptr += 3; } else if (!strncasecmp(ptr, "toggle", 6)) { tmp = snd_ctl_elem_value_get_boolean(control, idx); tmp = tmp > 0 ? 0 : 1; ptr += 6; } else if (isdigit(*ptr)) { tmp = atoi(ptr) > 0 ? 1 : 0; while (isdigit(*ptr)) ptr++; } else { while (*ptr && *ptr != ',') ptr++; } snd_ctl_elem_value_set_boolean(control, idx, tmp); break; case SND_CTL_ELEM_TYPE_INTEGER: tmp = get_integer(&ptr, snd_ctl_elem_info_get_min(info), snd_ctl_elem_info_get_max(info)); snd_ctl_elem_value_set_integer(control, idx, tmp); break; case SND_CTL_ELEM_TYPE_INTEGER64: tmp = get_integer64(&ptr, snd_ctl_elem_info_get_min64(info), snd_ctl_elem_info_get_max64(info)); snd_ctl_elem_value_set_integer64(control, idx, tmp); break; case SND_CTL_ELEM_TYPE_ENUMERATED: tmp = get_ctl_enum_item_index(handle, info, &ptr); if (tmp < 0) tmp = get_integer(&ptr, 0, snd_ctl_elem_info_get_items(info) - 1); snd_ctl_elem_value_set_enumerated(control, idx, tmp); break; case SND_CTL_ELEM_TYPE_BYTES: tmp = get_integer(&ptr, 0, 255); snd_ctl_elem_value_set_byte(control, idx, tmp); break; default: break; } if (!strchr(argv[1], ',')) ptr = argv[1]; else if (*ptr == ',') ptr++; } if ((err = snd_ctl_elem_write(handle, control)) < 0) { if (!keep_handle) { snd_ctl_close(handle); handle = NULL; } return err; } } if (! keep_handle) { snd_ctl_close(handle); handle = NULL; } if (!quiet) { snd_hctl_t *hctl; snd_hctl_elem_t *elem; if ((err = snd_hctl_open(&hctl, card, 0)) < 0) return err; if ((err = snd_hctl_load(hctl)) < 0) return err; elem = snd_hctl_find_elem(hctl, id); if (elem) show_control(" ", elem, LEVEL_BASIC | LEVEL_ID); snd_hctl_close(hctl); } return 0; }
static int amixer_control(t_amixer *x, int argc, t_atom *argv, int roflag) { int err; snd_ctl_t *handle; snd_ctl_elem_info_t *info; snd_ctl_elem_id_t *id; snd_ctl_elem_value_t *control; char *ptr; unsigned int idx, count; long tmp; snd_ctl_elem_type_t type; snd_ctl_elem_info_alloca(&info); snd_ctl_elem_id_alloca(&id); snd_ctl_elem_value_alloca(&control); if (argc < 1) { error("Specify a full control identifier: [[iface=<iface>,][name='name',][index=<index>,][device=<device>,][subdevice=<subdevice>]]|[numid=<numid>]\n"); return -EINVAL; } if(A_FLOAT==argv->a_type){ snd_ctl_elem_id_set_numid(id, atom_getint(argv)); if(0) { error("Wrong control identifier: %d\n", atom_getint(argv)); return -EINVAL; } } else { if (parse_control_id(atom_getsymbol(argv)->s_name, id)) { error("Wrong control identifier: %s\n", atom_getsymbol(argv)->s_name); return -EINVAL; } } if ((err = snd_ctl_open(&handle, x->card, 0)) < 0) { error("Control %s open error: %s\n", x->card, snd_strerror(err)); return err; } snd_ctl_elem_info_set_id(info, id); if ((err = snd_ctl_elem_info(handle, info)) < 0) { error("Control %s cinfo error: %s\n", x->card, snd_strerror(err)); return err; } snd_ctl_elem_info_get_id(info, id); /* FIXME: Remove it when hctl find works ok !!! */ type = snd_ctl_elem_info_get_type(info); count = snd_ctl_elem_info_get_count(info); snd_ctl_elem_value_set_id(control, id); if (!roflag) { t_float atom_float = atom_getfloat(argv+1); int atom_isfloat = (A_FLOAT==(argv+1)->a_type); post("now setting"); ptr = atom_getsymbol(argv+1)->s_name; for (idx = 0; idx < count && idx < 128 && ptr && *ptr; idx++) { switch (type) { case SND_CTL_ELEM_TYPE_BOOLEAN: tmp = 0; if(atom_isfloat){ tmp=(atom_float>0)?1:0; } else if (!strncasecmp(ptr, "on", 2) || !strncasecmp(ptr, "up", 2)) { tmp = 1; ptr += 2; } else if (!strncasecmp(ptr, "yes", 3)) { tmp = 1; ptr += 3; } else if (!strncasecmp(ptr, "toggle", 6)) { tmp = snd_ctl_elem_value_get_boolean(control, idx); tmp = tmp > 0 ? 0 : 1; ptr += 6; } else if (isdigit(*ptr)) { tmp = atoi(ptr) > 0 ? 1 : 0; while (isdigit(*ptr)) ptr++; } else { while (*ptr && *ptr != ',') ptr++; } snd_ctl_elem_value_set_boolean(control, idx, tmp); break; case SND_CTL_ELEM_TYPE_INTEGER: tmp = atom_isfloat?((int)atom_float):get_integer(&ptr, snd_ctl_elem_info_get_min(info), snd_ctl_elem_info_get_max(info)); snd_ctl_elem_value_set_integer(control, idx, tmp); break; case SND_CTL_ELEM_TYPE_INTEGER64: tmp = atom_isfloat?((int)atom_float):get_integer64(&ptr, snd_ctl_elem_info_get_min64(info), snd_ctl_elem_info_get_max64(info)); snd_ctl_elem_value_set_integer64(control, idx, tmp); break; case SND_CTL_ELEM_TYPE_ENUMERATED: tmp = atom_isfloat?((int)atom_float):get_integer(&ptr, 0, snd_ctl_elem_info_get_items(info) - 1); snd_ctl_elem_value_set_enumerated(control, idx, tmp); break; case SND_CTL_ELEM_TYPE_BYTES: tmp = atom_isfloat?((int)atom_float):get_integer(&ptr, 0, 255); snd_ctl_elem_value_set_byte(control, idx, tmp); break; default: break; } if (!strchr(atom_getsymbol(argv+1)->s_name, ',')) ptr = atom_getsymbol(argv+1)->s_name; else if (*ptr == ',') ptr++; } if ((err = snd_ctl_elem_write(handle, control)) < 0) { error("Control %s element write error: %s\n", x->card, snd_strerror(err)); return err; } } snd_ctl_close(handle); if (1) { snd_hctl_t *hctl; snd_hctl_elem_t *elem; if ((err = snd_hctl_open(&hctl, x->card, 0)) < 0) { error("Control %s open error: %s\n", x->card, snd_strerror(err)); return err; } if ((err = snd_hctl_load(hctl)) < 0) { error("Control %s load error: %s\n", x->card, snd_strerror(err)); return err; } elem = snd_hctl_find_elem(hctl, id); if (elem) show_control(x->card, " ", elem, LEVEL_BASIC | LEVEL_ID); else printf("Could not find the specified element\n"); snd_hctl_close(hctl); } }
/** * \brief parse ASCII string as CTL element value * \param handle CTL handle * \param dst destination CTL element value * \param info CTL element info structure * \param value source ASCII string * \return zero on success, otherwise a negative error code * * Note: For toggle command, the dst must contain previous (current) * state (do the #snd_ctl_elem_read call to obtain it). */ int snd_ctl_ascii_value_parse(snd_ctl_t *handle, snd_ctl_elem_value_t *dst, snd_ctl_elem_info_t *info, const char *value) { const char *ptr = value; snd_ctl_elem_id_t myid = {0}; snd_ctl_elem_type_t type; unsigned int idx, count; long tmp; long long tmp64; snd_ctl_elem_info_get_id(info, &myid); type = snd_ctl_elem_info_get_type(info); count = snd_ctl_elem_info_get_count(info); snd_ctl_elem_value_set_id(dst, &myid); for (idx = 0; idx < count && idx < 128 && ptr && *ptr; idx++) { if (*ptr == ',') goto skip; switch (type) { case SND_CTL_ELEM_TYPE_BOOLEAN: tmp = 0; if (!strncasecmp(ptr, "on", 2) || !strncasecmp(ptr, "up", 2)) { tmp = 1; ptr += 2; } else if (!strncasecmp(ptr, "yes", 3)) { tmp = 1; ptr += 3; } else if (!strncasecmp(ptr, "toggle", 6)) { tmp = snd_ctl_elem_value_get_boolean(dst, idx); tmp = tmp > 0 ? 0 : 1; ptr += 6; } else if (isdigit(*ptr)) { tmp = atoi(ptr) > 0 ? 1 : 0; while (isdigit(*ptr)) ptr++; } else { while (*ptr && *ptr != ',') ptr++; } snd_ctl_elem_value_set_boolean(dst, idx, tmp); break; case SND_CTL_ELEM_TYPE_INTEGER: tmp = get_integer(&ptr, snd_ctl_elem_info_get_min(info), snd_ctl_elem_info_get_max(info)); snd_ctl_elem_value_set_integer(dst, idx, tmp); break; case SND_CTL_ELEM_TYPE_INTEGER64: tmp64 = get_integer64(&ptr, snd_ctl_elem_info_get_min64(info), snd_ctl_elem_info_get_max64(info)); snd_ctl_elem_value_set_integer64(dst, idx, tmp64); break; case SND_CTL_ELEM_TYPE_ENUMERATED: tmp = get_ctl_enum_item_index(handle, info, &ptr); if (tmp < 0) tmp = get_integer(&ptr, 0, snd_ctl_elem_info_get_items(info) - 1); snd_ctl_elem_value_set_enumerated(dst, idx, tmp); break; case SND_CTL_ELEM_TYPE_BYTES: tmp = get_integer(&ptr, 0, 255); snd_ctl_elem_value_set_byte(dst, idx, tmp); break; default: break; } skip: if (!strchr(value, ',')) ptr = value; else if (*ptr == ',') ptr++; } return 0; }