20 int snd_hdac_bus_init(struct hdac_bus *bus, struct device *dev,  in snd_hdac_bus_init()  argument
23 	memset(bus, 0, sizeof(*bus));  in snd_hdac_bus_init()
24 	bus->dev = dev;  in snd_hdac_bus_init()
25 	bus->ops = ops;  in snd_hdac_bus_init()
26 	INIT_LIST_HEAD(&bus->codec_list);  in snd_hdac_bus_init()
27 	INIT_WORK(&bus->unsol_work, process_unsol_events);  in snd_hdac_bus_init()
28 	mutex_init(&bus->cmd_mutex);  in snd_hdac_bus_init()
37 void snd_hdac_bus_exit(struct hdac_bus *bus)  in snd_hdac_bus_exit()  argument
39 	WARN_ON(!list_empty(&bus->codec_list));  in snd_hdac_bus_exit()
40 	cancel_work_sync(&bus->unsol_work);  in snd_hdac_bus_exit()
52 int snd_hdac_bus_exec_verb(struct hdac_bus *bus, unsigned int addr,  in snd_hdac_bus_exec_verb()  argument
57 	mutex_lock(&bus->cmd_mutex);  in snd_hdac_bus_exec_verb()
58 	err = snd_hdac_bus_exec_verb_unlocked(bus, addr, cmd, res);  in snd_hdac_bus_exec_verb()
59 	mutex_unlock(&bus->cmd_mutex);  in snd_hdac_bus_exec_verb()
72 int snd_hdac_bus_exec_verb_unlocked(struct hdac_bus *bus, unsigned int addr,  in snd_hdac_bus_exec_verb_unlocked()  argument
83 	else if (bus->sync_write)  in snd_hdac_bus_exec_verb_unlocked()
86 		trace_hda_send_cmd(bus, cmd);  in snd_hdac_bus_exec_verb_unlocked()
87 		err = bus->ops->command(bus, cmd);  in snd_hdac_bus_exec_verb_unlocked()
91 		err = bus->ops->get_response(bus, addr, &tmp);  in snd_hdac_bus_exec_verb_unlocked()
96 		err = bus->ops->get_response(bus, addr, res);  in snd_hdac_bus_exec_verb_unlocked()
97 		trace_hda_get_response(bus, addr, *res);  in snd_hdac_bus_exec_verb_unlocked()
113 void snd_hdac_bus_queue_event(struct hdac_bus *bus, u32 res, u32 res_ex)  in snd_hdac_bus_queue_event()  argument
117 	if (!bus)  in snd_hdac_bus_queue_event()
120 	trace_hda_unsol_event(bus, res, res_ex);  in snd_hdac_bus_queue_event()
121 	wp = (bus->unsol_wp + 1) % HDA_UNSOL_QUEUE_SIZE;  in snd_hdac_bus_queue_event()
122 	bus->unsol_wp = wp;  in snd_hdac_bus_queue_event()
125 	bus->unsol_queue[wp] = res;  in snd_hdac_bus_queue_event()
126 	bus->unsol_queue[wp + 1] = res_ex;  in snd_hdac_bus_queue_event()
128 	schedule_work(&bus->unsol_work);  in snd_hdac_bus_queue_event()
137 	struct hdac_bus *bus = container_of(work, struct hdac_bus, unsol_work);  in process_unsol_events()  local
142 	while (bus->unsol_rp != bus->unsol_wp) {  in process_unsol_events()
143 		rp = (bus->unsol_rp + 1) % HDA_UNSOL_QUEUE_SIZE;  in process_unsol_events()
144 		bus->unsol_rp = rp;  in process_unsol_events()
146 		res = bus->unsol_queue[rp];  in process_unsol_events()
147 		caddr = bus->unsol_queue[rp + 1];  in process_unsol_events()
150 		codec = bus->caddr_tbl[caddr & 0x0f];  in process_unsol_events()
159 int snd_hdac_bus_add_device(struct hdac_bus *bus, struct hdac_device *codec)  in snd_hdac_bus_add_device()  argument
161 	if (bus->caddr_tbl[codec->addr]) {  in snd_hdac_bus_add_device()
162 		dev_err(bus->dev, "address 0x%x is already occupied\n",  in snd_hdac_bus_add_device()
167 	list_add_tail(&codec->list, &bus->codec_list);  in snd_hdac_bus_add_device()
168 	bus->caddr_tbl[codec->addr] = codec;  in snd_hdac_bus_add_device()
169 	set_bit(codec->addr, &bus->codec_powered);  in snd_hdac_bus_add_device()
170 	bus->num_codecs++;  in snd_hdac_bus_add_device()
175 void snd_hdac_bus_remove_device(struct hdac_bus *bus,  in snd_hdac_bus_remove_device()  argument
178 	WARN_ON(bus != codec->bus);  in snd_hdac_bus_remove_device()
182 	bus->caddr_tbl[codec->addr] = NULL;  in snd_hdac_bus_remove_device()
183 	clear_bit(codec->addr, &bus->codec_powered);  in snd_hdac_bus_remove_device()
184 	bus->num_codecs--;  in snd_hdac_bus_remove_device()