163 	struct tda8444_unit *unitp;  in tda8444_do_resume()  local
167 	unitp = (struct tda8444_unit *)  in tda8444_do_resume()
170 	if (unitp == NULL) {  in tda8444_do_resume()
176 		unitp->tda8444_transfer->i2c_wbuf[0] = TDA8444_REGBASE |  in tda8444_do_resume()
178 		unitp->tda8444_transfer->i2c_wbuf[1] =  in tda8444_do_resume()
179 		    unitp->tda8444_output[channel];  in tda8444_do_resume()
181 		    channel, unitp->tda8444_output[channel]));  in tda8444_do_resume()
182 		if (i2c_transfer(unitp->tda8444_hdl,  in tda8444_do_resume()
183 		    unitp->tda8444_transfer) != I2C_SUCCESS) {  in tda8444_do_resume()
188 	mutex_enter(&unitp->tda8444_mutex);  in tda8444_do_resume()
189 	unitp->tda8444_flags = 0;  in tda8444_do_resume()
190 	cv_signal(&unitp->tda8444_cv);  in tda8444_do_resume()
191 	mutex_exit(&unitp->tda8444_mutex);  in tda8444_do_resume()
199 	struct tda8444_unit *unitp;  in tda8444_do_attach()  local
214 	unitp = ddi_get_soft_state(tda8444_soft_statep, instance);  in tda8444_do_attach()
216 	if (unitp == NULL) {  in tda8444_do_attach()
220 	(void) snprintf(unitp->tda8444_name, sizeof (unitp->tda8444_name),  in tda8444_do_attach()
230 			    unitp->tda8444_name);  in tda8444_do_attach()
236 		unitp->tda8444_output[i] = TDA8444_UNKNOWN_OUT;  in tda8444_do_attach()
242 	if (i2c_transfer_alloc(unitp->tda8444_hdl, &unitp->tda8444_transfer,  in tda8444_do_attach()
250 	unitp->tda8444_transfer->i2c_flags = I2C_WR;  in tda8444_do_attach()
251 	unitp->tda8444_transfer->i2c_version = I2C_XFER_REV;  in tda8444_do_attach()
253 	if (i2c_client_register(dip, &unitp->tda8444_hdl) != I2C_SUCCESS) {  in tda8444_do_attach()
257 		i2c_transfer_free(unitp->tda8444_hdl, unitp->tda8444_transfer);  in tda8444_do_attach()
262 	mutex_init(&unitp->tda8444_mutex, NULL, MUTEX_DRIVER, NULL);  in tda8444_do_attach()
263 	cv_init(&unitp->tda8444_cv, NULL, CV_DRIVER, NULL);  in tda8444_do_attach()
287 	struct tda8444_unit *unitp;  in tda8444_do_detach()  local
291 	unitp = ddi_get_soft_state(tda8444_soft_statep, instance);  in tda8444_do_detach()
293 	i2c_transfer_free(unitp->tda8444_hdl, unitp->tda8444_transfer);  in tda8444_do_detach()
294 	i2c_client_unregister(unitp->tda8444_hdl);  in tda8444_do_detach()
296 	mutex_destroy(&unitp->tda8444_mutex);  in tda8444_do_detach()
297 	cv_destroy(&unitp->tda8444_cv);  in tda8444_do_detach()
306 	struct tda8444_unit *unitp;  in tda8444_do_suspend()  local
310 	unitp = ddi_get_soft_state(tda8444_soft_statep, instance);  in tda8444_do_suspend()
316 	mutex_enter(&unitp->tda8444_mutex);  in tda8444_do_suspend()
317 	while (unitp->tda8444_flags == TDA8444_BUSY) {  in tda8444_do_suspend()
318 		if (cv_wait_sig(&unitp->tda8444_cv,  in tda8444_do_suspend()
319 		    &unitp->tda8444_mutex) <= 0) {  in tda8444_do_suspend()
320 			mutex_exit(&unitp->tda8444_mutex);  in tda8444_do_suspend()
325 	unitp->tda8444_flags = TDA8444_SUSPENDED;  in tda8444_do_suspend()
326 	mutex_exit(&unitp->tda8444_mutex);  in tda8444_do_suspend()
350 	struct tda8444_unit *unitp;  in tda8444_open()  local
360 	unitp = (struct tda8444_unit *)  in tda8444_open()
363 	if (unitp == NULL) {  in tda8444_open()
373 	mutex_enter(&unitp->tda8444_mutex);  in tda8444_open()
376 		if (unitp->tda8444_oflag[channel] != 0) {  in tda8444_open()
379 			unitp->tda8444_oflag[channel] = FEXCL;  in tda8444_open()
382 		if (unitp->tda8444_oflag[channel] == FEXCL) {  in tda8444_open()
385 			unitp->tda8444_oflag[channel] = (uint16_t)FOPEN;  in tda8444_open()
389 	mutex_exit(&unitp->tda8444_mutex);  in tda8444_open()
398 	struct tda8444_unit *unitp;  in tda8444_close()  local
407 	unitp = (struct tda8444_unit *)  in tda8444_close()
410 	if (unitp == NULL) {  in tda8444_close()
415 	mutex_enter(&unitp->tda8444_mutex);  in tda8444_close()
417 	unitp->tda8444_oflag[channel] = 0;  in tda8444_close()
419 	mutex_exit(&unitp->tda8444_mutex);  in tda8444_close()
441 	struct tda8444_unit *unitp;  in tda8444_io()  local
457 	unitp = (struct tda8444_unit *)  in tda8444_io()
460 	if (unitp == NULL) {  in tda8444_io()
466 		if (unitp->tda8444_output[channel] != TDA8444_UNKNOWN_OUT) {  in tda8444_io()
467 			return (uiomove(&unitp->tda8444_output[channel], 1,  in tda8444_io()
480 	mutex_enter(&unitp->tda8444_mutex);  in tda8444_io()
481 	if (unitp->tda8444_flags == TDA8444_SUSPENDED) {  in tda8444_io()
482 		mutex_exit(&unitp->tda8444_mutex);  in tda8444_io()
487 	while (unitp->tda8444_flags == TDA8444_BUSY) {  in tda8444_io()
488 		if (cv_wait_sig(&unitp->tda8444_cv,  in tda8444_io()
489 		    &unitp->tda8444_mutex) <= 0) {  in tda8444_io()
490 			mutex_exit(&unitp->tda8444_mutex);  in tda8444_io()
495 	unitp->tda8444_flags = TDA8444_BUSY;  in tda8444_io()
496 	mutex_exit(&unitp->tda8444_mutex);  in tda8444_io()
498 	unitp->tda8444_transfer->i2c_wbuf[0] = (TDA8444_REGBASE | channel);  in tda8444_io()
509 			unitp->tda8444_transfer->i2c_wbuf[1] =  in tda8444_io()
512 			    unitp->tda8444_transfer->i2c_wbuf[1]));  in tda8444_io()
514 			if (i2c_transfer(unitp->tda8444_hdl,  in tda8444_io()
515 			    unitp->tda8444_transfer) != I2C_SUCCESS) {  in tda8444_io()
518 				unitp->tda8444_output[channel] = out_value;  in tda8444_io()
525 	mutex_enter(&unitp->tda8444_mutex);  in tda8444_io()
526 	unitp->tda8444_flags = 0;  in tda8444_io()
527 	cv_signal(&unitp->tda8444_cv);  in tda8444_io()
528 	mutex_exit(&unitp->tda8444_mutex);  in tda8444_io()