149 	struct seepromunit *unitp;  in seeprom_do_attach()  local
162 	unitp = ddi_get_soft_state(seepromsoft_statep, instance);  in seeprom_do_attach()
164 	unitp->seeprom_dip = dip;  in seeprom_do_attach()
166 	(void) snprintf(unitp->seeprom_name, sizeof (unitp->seeprom_name),  in seeprom_do_attach()
172 		    unitp->seeprom_name, ddi_node_name(dip));  in seeprom_do_attach()
178 	if (i2c_client_register(dip, &unitp->seeprom_hdl) != I2C_SUCCESS) {  in seeprom_do_attach()
187 		unitp->seeprom_addrsize = AT34C02_ADDRSIZE;  in seeprom_do_attach()
188 		unitp->seeprom_memsize = AT34C02_MEMSIZE;  in seeprom_do_attach()
189 		unitp->seeprom_pagesize = AT34C02_PAGESIZE;  in seeprom_do_attach()
190 		unitp->seeprom_pagemask = AT34C02_PAGEMASK;  in seeprom_do_attach()
195 		unitp->seeprom_addrsize = AT24C64_ADDRSIZE;  in seeprom_do_attach()
196 		unitp->seeprom_memsize = AT24C64_MEMSIZE;  in seeprom_do_attach()
197 		unitp->seeprom_pagesize = AT24C64_PAGESIZE;  in seeprom_do_attach()
198 		unitp->seeprom_pagemask = AT24C64_PAGEMASK;  in seeprom_do_attach()
203 	    (caddr_t)&unitp->seeprom_memsize, sizeof (unitp->seeprom_memsize));  in seeprom_do_attach()
205 	mutex_init(&unitp->seeprom_mutex, NULL, MUTEX_DRIVER, NULL);  in seeprom_do_attach()
206 	cv_init(&unitp->seeprom_cv, NULL, CV_DRIVER, NULL);  in seeprom_do_attach()
233 	struct seepromunit *unitp;  in seeprom_info()  local
237 		unitp = ddi_get_soft_state(seepromsoft_statep,  in seeprom_info()
239 		if (unitp == NULL) {  in seeprom_info()
243 		*result = (void *)unitp->seeprom_dip;  in seeprom_info()
259 	struct seepromunit *unitp;  in seeprom_do_detach()  local
263 	unitp = ddi_get_soft_state(seepromsoft_statep, instance);  in seeprom_do_detach()
264 	i2c_client_unregister(unitp->seeprom_hdl);  in seeprom_do_detach()
266 	mutex_destroy(&unitp->seeprom_mutex);  in seeprom_do_detach()
267 	cv_destroy(&unitp->seeprom_cv);  in seeprom_do_detach()
296 	struct seepromunit *unitp;  in seeprom_open()  local
307 	unitp = (struct seepromunit *)  in seeprom_open()
310 	if (unitp == NULL) {  in seeprom_open()
315 	mutex_enter(&unitp->seeprom_mutex);  in seeprom_open()
318 		if (unitp->seeprom_oflag != 0) {  in seeprom_open()
321 			unitp->seeprom_oflag = FEXCL;  in seeprom_open()
324 		if (unitp->seeprom_oflag == FEXCL) {  in seeprom_open()
327 			unitp->seeprom_oflag = FOPEN;  in seeprom_open()
331 	mutex_exit(&unitp->seeprom_mutex);  in seeprom_open()
340 	struct seepromunit *unitp;  in seeprom_close()  local
345 	unitp = (struct seepromunit *)  in seeprom_close()
348 	if (unitp == NULL) {  in seeprom_close()
353 	mutex_enter(&unitp->seeprom_mutex);  in seeprom_close()
355 	unitp->seeprom_oflag = 0;  in seeprom_close()
357 	mutex_exit(&unitp->seeprom_mutex);  in seeprom_close()
379 	struct seepromunit *unitp;  in seeprom_io()  local
388 	unitp = (struct seepromunit *)  in seeprom_io()
392 	if (unitp == NULL) {  in seeprom_io()
396 	if (uiop->uio_offset >= unitp->seeprom_memsize) {  in seeprom_io()
411 	    unitp->seeprom_memsize - uiop->uio_offset);  in seeprom_io()
416 	mutex_enter(&unitp->seeprom_mutex);  in seeprom_io()
417 	while ((unitp->seeprom_flags & SEEPROM_BUSY) == SEEPROM_BUSY) {  in seeprom_io()
418 		if (cv_wait_sig(&unitp->seeprom_cv,  in seeprom_io()
419 		    &unitp->seeprom_mutex) <= 0) {  in seeprom_io()
420 			mutex_exit(&unitp->seeprom_mutex);  in seeprom_io()
425 	unitp->seeprom_flags |= SEEPROM_BUSY;  in seeprom_io()
426 	mutex_exit(&unitp->seeprom_mutex);  in seeprom_io()
429 		current_xfer_len = min(bytes_to_rw, unitp->seeprom_pagesize -  in seeprom_io()
430 		    (seeprom_addr & unitp->seeprom_pagemask));  in seeprom_io()
434 				(void) i2c_transfer_alloc(unitp->seeprom_hdl,  in seeprom_io()
436 				    unitp->seeprom_addrsize + current_xfer_len,  in seeprom_io()
441 				    unitp->seeprom_addrsize],  in seeprom_io()
443 					i2c_transfer_free(unitp->seeprom_hdl,  in seeprom_io()
461 			if (unitp->seeprom_addrsize == 2) {  in seeprom_io()
468 			if ((err = i2c_transfer(unitp->seeprom_hdl, i2ctp)) !=  in seeprom_io()
470 				i2c_transfer_free(unitp->seeprom_hdl, i2ctp);  in seeprom_io()
475 			    i2ctp->i2c_w_resid - unitp->seeprom_addrsize;  in seeprom_io()
478 				i2c_transfer_free(unitp->seeprom_hdl, i2ctp);  in seeprom_io()
491 			(void) i2c_transfer_alloc(unitp->seeprom_hdl, &i2ctp,  in seeprom_io()
492 			    unitp->seeprom_addrsize, current_xfer_len,  in seeprom_io()
496 			if (unitp->seeprom_addrsize == 2) {  in seeprom_io()
505 			if ((err = i2c_transfer(unitp->seeprom_hdl, i2ctp)) !=  in seeprom_io()
507 				i2c_transfer_free(unitp->seeprom_hdl, i2ctp);  in seeprom_io()
515 			i2c_transfer_free(unitp->seeprom_hdl, i2ctp);  in seeprom_io()
522 	mutex_enter(&unitp->seeprom_mutex);  in seeprom_io()
523 	unitp->seeprom_flags = 0;  in seeprom_io()
524 	cv_signal(&unitp->seeprom_cv);  in seeprom_io()
525 	mutex_exit(&unitp->seeprom_mutex);  in seeprom_io()