1 /*-
48 	if (ioctl(dev->parent_mixer->fd, MIXER_READ(dev->devno), &v) < 0)  in _mixer_readvol()
49 		return (-1);  in _mixer_readvol()
50 	dev->vol.left = MIX_VOLNORM(v & 0x00ff);  in _mixer_readvol()
51 	dev->vol.right = MIX_VOLNORM((v >> 8) & 0x00ff);  in _mixer_readvol()
78 			m->unit = -1;  in mixer_open()
83 			m->unit = strtol(name + strlen(BASEPATH), NULL, 10);  in mixer_open()
85 		(void)strlcpy(m->name, name, sizeof(m->name));  in mixer_open()
88 		if ((m->unit = mixer_get_dunit()) < 0)  in mixer_open()
90 		(void)snprintf(m->name, sizeof(m->name), BASEPATH "%d", m->unit);  in mixer_open()
93 	if ((m->fd = open(m->name, O_RDWR)) < 0)  in mixer_open()
96 	m->devmask = m->recmask = m->recsrc = 0;  in mixer_open()
97 	m->f_default = m->unit == mixer_get_dunit();  in mixer_open()
98 	m->mode = mixer_get_mode(m->unit);  in mixer_open()
100 	m->mi.dev = m->unit;  in mixer_open()
101 	m->ci.card = m->unit;  in mixer_open()
102 	if (ioctl(m->fd, SNDCTL_MIXERINFO, &m->mi) < 0) {  in mixer_open()
103 		memset(&m->mi, 0, sizeof(m->mi));  in mixer_open()
104 		strlcpy(m->mi.name, m->name, sizeof(m->mi.name));  in mixer_open()
106 	if (ioctl(m->fd, SNDCTL_CARDINFO, &m->ci) < 0)  in mixer_open()
107 		memset(&m->ci, 0, sizeof(m->ci));  in mixer_open()
108 	if (ioctl(m->fd, SOUND_MIXER_READ_DEVMASK, &m->devmask) < 0 ||  in mixer_open()
109 	    ioctl(m->fd, SOUND_MIXER_READ_MUTE, &m->mutemask) < 0 ||  in mixer_open()
110 	    ioctl(m->fd, SOUND_MIXER_READ_RECMASK, &m->recmask) < 0 ||  in mixer_open()
111 	    ioctl(m->fd, SOUND_MIXER_READ_RECSRC, &m->recsrc) < 0)  in mixer_open()
114 	TAILQ_INIT(&m->devs);  in mixer_open()
120 		dp->parent_mixer = m;  in mixer_open()
121 		dp->devno = i;  in mixer_open()
122 		dp->nctl = 0;  in mixer_open()
125 		(void)strlcpy(dp->name, names[i], sizeof(dp->name));  in mixer_open()
126 		TAILQ_INIT(&dp->ctls);  in mixer_open()
127 		TAILQ_INSERT_TAIL(&m->devs, dp, devs);  in mixer_open()
128 		m->ndev++;  in mixer_open()
132 	m->dev = TAILQ_FIRST(&m->devs);  in mixer_open()
151 	r = close(m->fd);  in mixer_close()
152 	while (!TAILQ_EMPTY(&m->devs)) {  in mixer_close()
153 		dp = TAILQ_FIRST(&m->devs);  in mixer_close()
154 		TAILQ_REMOVE(&m->devs, dp, devs);  in mixer_close()
155 		while (!TAILQ_EMPTY(&dp->ctls))  in mixer_close()
156 			(void)mixer_remove_ctl(TAILQ_FIRST(&dp->ctls));  in mixer_close()
166  * the mixer has, but only one can be manipulated at a time -- this is what
170  * The caller must manually assign the return value to `m->dev`.
177 	if (dev < 0 || dev >= m->ndev) {  in mixer_get_dev()
181 	TAILQ_FOREACH(dp, &m->devs, devs) {  in mixer_get_dev()
182 		if (dp->devno == dev)  in mixer_get_dev()
200 	TAILQ_FOREACH(dp, &m->devs, devs) {  in mixer_get_dev_byname()
201 		if (!strncmp(dp->name, name, sizeof(dp->name)))  in mixer_get_dev_byname()
218 	mix_ctl_t *ctl, *cp;  in mixer_add_ctl()  local
223 		return (-1);  in mixer_add_ctl()
225 	if ((ctl = calloc(1, sizeof(mix_ctl_t))) == NULL)  in mixer_add_ctl()
226 		return (-1);  in mixer_add_ctl()
227 	ctl->parent_dev = parent_dev;  in mixer_add_ctl()
228 	ctl->id = id;  in mixer_add_ctl()
230 		(void)strlcpy(ctl->name, name, sizeof(ctl->name));  in mixer_add_ctl()
231 	ctl->mod = mod;  in mixer_add_ctl()
232 	ctl->print = print;  in mixer_add_ctl()
233 	dp = ctl->parent_dev;  in mixer_add_ctl()
235 	TAILQ_FOREACH(cp, &dp->ctls, ctls) {  in mixer_add_ctl()
236 		if (!strncmp(cp->name, name, sizeof(cp->name)) || cp->id == id) {  in mixer_add_ctl()
238 			return (-1);  in mixer_add_ctl()
241 	TAILQ_INSERT_TAIL(&dp->ctls, ctl, ctls);  in mixer_add_ctl()
242 	dp->nctl++;  in mixer_add_ctl()
251 mixer_add_ctl_s(mix_ctl_t *ctl)  in mixer_add_ctl_s()  argument
253 	if (ctl == NULL)  in mixer_add_ctl_s()
254 		return (-1);  in mixer_add_ctl_s()
256 	return (mixer_add_ctl(ctl->parent_dev, ctl->id, ctl->name,  in mixer_add_ctl_s()
257 	    ctl->mod, ctl->print));  in mixer_add_ctl_s()
264 mixer_remove_ctl(mix_ctl_t *ctl)  in mixer_remove_ctl()  argument
268 	if (ctl == NULL) {  in mixer_remove_ctl()
270 		return (-1);  in mixer_remove_ctl()
272 	p = ctl->parent_dev;  in mixer_remove_ctl()
273 	if (!TAILQ_EMPTY(&p->ctls)) {  in mixer_remove_ctl()
274 		TAILQ_REMOVE(&p->ctls, ctl, ctls);  in mixer_remove_ctl()
275 		free(ctl);  in mixer_remove_ctl()
289 	TAILQ_FOREACH(cp, &d->ctls, ctls) {  in mixer_get_ctl()
290 		if (cp->id == id)  in mixer_get_ctl()
306 	TAILQ_FOREACH(cp, &d->ctls, ctls) {  in mixer_get_ctl_byname()
307 		if (!strncmp(cp->name, name, sizeof(cp->name)))  in mixer_get_ctl_byname()
318  * an integer value between 0 and 100 stored as `lvol | rvol << 8` --  for
319  * that reason, we de-normalize the 32-bit float volume value, before
332 		return (-1);  in mixer_set_vol()
335 	if (ioctl(m->fd, MIXER_WRITE(m->dev->devno), &v) < 0)  in mixer_set_vol()
336 		return (-1);  in mixer_set_vol()
337 	if (_mixer_readvol(m->dev) < 0)  in mixer_set_vol()
338 		return (-1);  in mixer_set_vol()
355 		m->mutemask |= (1 << m->dev->devno);  in mixer_set_mute()
358 		m->mutemask &= ~(1 << m->dev->devno);  in mixer_set_mute()
361 		m->mutemask ^= (1 << m->dev->devno);  in mixer_set_mute()
365 		return (-1);  in mixer_set_mute()
367 	if (ioctl(m->fd, SOUND_MIXER_WRITE_MUTE, &m->mutemask) < 0)  in mixer_set_mute()
368 		return (-1);  in mixer_set_mute()
369 	if (ioctl(m->fd, SOUND_MIXER_READ_MUTE, &m->mutemask) < 0)  in mixer_set_mute()
370 		return (-1);  in mixer_set_mute()
387 	if (!m->recmask || !MIX_ISREC(m, m->dev->devno)) {  in mixer_mod_recsrc()
389 		return (-1);  in mixer_mod_recsrc()
393 		m->recsrc |= (1 << m->dev->devno);  in mixer_mod_recsrc()
396 		m->recsrc &= ~(1 << m->dev->devno);  in mixer_mod_recsrc()
399 		m->recsrc = (1 << m->dev->devno);  in mixer_mod_recsrc()
402 		m->recsrc ^= (1 << m->dev->devno);  in mixer_mod_recsrc()
406 		return (-1);  in mixer_mod_recsrc()
408 	if (ioctl(m->fd, SOUND_MIXER_WRITE_RECSRC, &m->recsrc) < 0)  in mixer_mod_recsrc()
409 		return (-1);  in mixer_mod_recsrc()
410 	if (ioctl(m->fd, SOUND_MIXER_READ_RECSRC, &m->recsrc) < 0)  in mixer_mod_recsrc()
411 		return (-1);  in mixer_mod_recsrc()
428 		return (-1);  in mixer_get_dunit()
447 		return (-1);  in mixer_set_dunit()
449 	m->f_default = m->unit == unit;  in mixer_set_dunit()
474  * Get the total number of mixers in the system.
487 		return (-1);  in mixer_get_nmixers()
488 	if (ioctl(m->fd, OSS_SYSINFO, &si) < 0) {  in mixer_get_nmixers()
490 		return (-1);  in mixer_get_nmixers()
505 	if (!(unit == -1 || (unit >= 0 && unit < mixer_get_nmixers()))) {  in mixer_get_path()
507 		return (-1);  in mixer_get_path()
509 	if (unit == -1)  in mixer_get_path()
516 		return (-1);  in mixer_get_path()