49 static int snd_opl4_seq_use_inc(struct snd_opl4 *opl4)  in snd_opl4_seq_use_inc()  argument
51 	if (!try_module_get(opl4->card->module))  in snd_opl4_seq_use_inc()
56 static void snd_opl4_seq_use_dec(struct snd_opl4 *opl4)  in snd_opl4_seq_use_dec()  argument
58 	module_put(opl4->card->module);  in snd_opl4_seq_use_dec()
63 	struct snd_opl4 *opl4 = private_data;  in snd_opl4_seq_use()  local
66 	mutex_lock(&opl4->access_mutex);  in snd_opl4_seq_use()
68 	if (opl4->used) {  in snd_opl4_seq_use()
69 		mutex_unlock(&opl4->access_mutex);  in snd_opl4_seq_use()
72 	opl4->used++;  in snd_opl4_seq_use()
75 		err = snd_opl4_seq_use_inc(opl4);  in snd_opl4_seq_use()
77 			mutex_unlock(&opl4->access_mutex);  in snd_opl4_seq_use()
82 	mutex_unlock(&opl4->access_mutex);  in snd_opl4_seq_use()
84 	snd_opl4_synth_reset(opl4);  in snd_opl4_seq_use()
90 	struct snd_opl4 *opl4 = private_data;  in snd_opl4_seq_unuse()  local
92 	snd_opl4_synth_shutdown(opl4);  in snd_opl4_seq_unuse()
94 	mutex_lock(&opl4->access_mutex);  in snd_opl4_seq_unuse()
95 	opl4->used--;  in snd_opl4_seq_unuse()
96 	mutex_unlock(&opl4->access_mutex);  in snd_opl4_seq_unuse()
99 		snd_opl4_seq_use_dec(opl4);  in snd_opl4_seq_unuse()
114 	struct snd_opl4 *opl4 = private_data;  in snd_opl4_seq_event_input()  local
116 	snd_midi_process_event(&opl4_ops, ev, opl4->chset);  in snd_opl4_seq_event_input()
122 	struct snd_opl4 *opl4 = private_data;  in snd_opl4_seq_free_port()  local
124 	snd_midi_channel_free_set(opl4->chset);  in snd_opl4_seq_free_port()
130 	struct snd_opl4 *opl4;  in snd_opl4_seq_probe()  local
134 	opl4 = *(struct snd_opl4 **)SNDRV_SEQ_DEVICE_ARGPTR(dev);  in snd_opl4_seq_probe()
135 	if (!opl4)  in snd_opl4_seq_probe()
138 	if (snd_yrw801_detect(opl4) < 0)  in snd_opl4_seq_probe()
141 	opl4->chset = snd_midi_channel_alloc_set(16);  in snd_opl4_seq_probe()
142 	if (!opl4->chset)  in snd_opl4_seq_probe()
144 	opl4->chset->private_data = opl4;  in snd_opl4_seq_probe()
147 	client = snd_seq_create_kernel_client(opl4->card, opl4->seq_dev_num,  in snd_opl4_seq_probe()
150 		snd_midi_channel_free_set(opl4->chset);  in snd_opl4_seq_probe()
153 	opl4->seq_client = client;  in snd_opl4_seq_probe()
154 	opl4->chset->client = client;  in snd_opl4_seq_probe()
163 	pcallbacks.private_data = opl4;  in snd_opl4_seq_probe()
165 	opl4->chset->port = snd_seq_event_port_attach(client, &pcallbacks,  in snd_opl4_seq_probe()
174 	if (opl4->chset->port < 0) {  in snd_opl4_seq_probe()
175 		int err = opl4->chset->port;  in snd_opl4_seq_probe()
176 		snd_midi_channel_free_set(opl4->chset);  in snd_opl4_seq_probe()
178 		opl4->seq_client = -1;  in snd_opl4_seq_probe()
187 	struct snd_opl4 *opl4;  in snd_opl4_seq_remove()  local
189 	opl4 = *(struct snd_opl4 **)SNDRV_SEQ_DEVICE_ARGPTR(dev);  in snd_opl4_seq_remove()
190 	if (!opl4)  in snd_opl4_seq_remove()
193 	if (opl4->seq_client >= 0) {  in snd_opl4_seq_remove()
194 		snd_seq_delete_kernel_client(opl4->seq_client);  in snd_opl4_seq_remove()
195 		opl4->seq_client = -1;  in snd_opl4_seq_remove()