91 	struct snd_rawmidi_runtime *runtime = substream->runtime;  in snd_rawmidi_ready()  local
93 	return runtime->avail >= runtime->avail_min;  in snd_rawmidi_ready()
99 	struct snd_rawmidi_runtime *runtime = substream->runtime;  in snd_rawmidi_ready_append()  local
101 	return runtime->avail >= runtime->avail_min &&  in snd_rawmidi_ready_append()
102 	       (!substream->append || runtime->avail >= count);  in snd_rawmidi_ready_append()
107 	struct snd_rawmidi_runtime *runtime =  in snd_rawmidi_input_event_work()  local
110 	if (runtime->event)  in snd_rawmidi_input_event_work()
111 		runtime->event(runtime->substream);  in snd_rawmidi_input_event_work()
116 	struct snd_rawmidi_runtime *runtime;  in snd_rawmidi_runtime_create()  local
118 	runtime = kzalloc(sizeof(*runtime), GFP_KERNEL);  in snd_rawmidi_runtime_create()
119 	if (!runtime)  in snd_rawmidi_runtime_create()
121 	runtime->substream = substream;  in snd_rawmidi_runtime_create()
122 	spin_lock_init(&runtime->lock);  in snd_rawmidi_runtime_create()
123 	init_waitqueue_head(&runtime->sleep);  in snd_rawmidi_runtime_create()
124 	INIT_WORK(&runtime->event_work, snd_rawmidi_input_event_work);  in snd_rawmidi_runtime_create()
125 	runtime->event = NULL;  in snd_rawmidi_runtime_create()
126 	runtime->buffer_size = PAGE_SIZE;  in snd_rawmidi_runtime_create()
127 	runtime->avail_min = 1;  in snd_rawmidi_runtime_create()
129 		runtime->avail = 0;  in snd_rawmidi_runtime_create()
131 		runtime->avail = runtime->buffer_size;  in snd_rawmidi_runtime_create()
132 	runtime->buffer = kvzalloc(runtime->buffer_size, GFP_KERNEL);  in snd_rawmidi_runtime_create()
133 	if (!runtime->buffer) {  in snd_rawmidi_runtime_create()
134 		kfree(runtime);  in snd_rawmidi_runtime_create()
137 	runtime->appl_ptr = runtime->hw_ptr = 0;  in snd_rawmidi_runtime_create()
138 	substream->runtime = runtime;  in snd_rawmidi_runtime_create()
144 	struct snd_rawmidi_runtime *runtime = substream->runtime;  in snd_rawmidi_runtime_free()  local
146 	kvfree(runtime->buffer);  in snd_rawmidi_runtime_free()
147 	kfree(runtime);  in snd_rawmidi_runtime_free()
148 	substream->runtime = NULL;  in snd_rawmidi_runtime_free()
165 		cancel_work_sync(&substream->runtime->event_work);  in snd_rawmidi_input_trigger()
168 static void __reset_runtime_ptrs(struct snd_rawmidi_runtime *runtime,  in __reset_runtime_ptrs()  argument
171 	runtime->drain = 0;  in __reset_runtime_ptrs()
172 	runtime->appl_ptr = runtime->hw_ptr = 0;  in __reset_runtime_ptrs()
173 	runtime->avail = is_input ? 0 : runtime->buffer_size;  in __reset_runtime_ptrs()
176 static void reset_runtime_ptrs(struct snd_rawmidi_runtime *runtime,  in reset_runtime_ptrs()  argument
181 	spin_lock_irqsave(&runtime->lock, flags);  in reset_runtime_ptrs()
182 	__reset_runtime_ptrs(runtime, is_input);  in reset_runtime_ptrs()
183 	spin_unlock_irqrestore(&runtime->lock, flags);  in reset_runtime_ptrs()
189 	reset_runtime_ptrs(substream->runtime, false);  in snd_rawmidi_drop_output()
198 	struct snd_rawmidi_runtime *runtime = substream->runtime;  in snd_rawmidi_drain_output()  local
201 	runtime->drain = 1;  in snd_rawmidi_drain_output()
202 	timeout = wait_event_interruptible_timeout(runtime->sleep,  in snd_rawmidi_drain_output()
203 				(runtime->avail >= runtime->buffer_size),  in snd_rawmidi_drain_output()
207 	if (runtime->avail < runtime->buffer_size && !timeout) {  in snd_rawmidi_drain_output()
210 			   (long)runtime->avail, (long)runtime->buffer_size);  in snd_rawmidi_drain_output()
213 	runtime->drain = 0;  in snd_rawmidi_drain_output()
229 	reset_runtime_ptrs(substream->runtime, true);  in snd_rawmidi_drain_input()
453 	if (rawmidi_file->input && rawmidi_file->input->runtime)  in snd_rawmidi_open()
454 		rawmidi_file->input->runtime->oss = (maj == SOUND_MAJOR);  in snd_rawmidi_open()
455 	if (rawmidi_file->output && rawmidi_file->output->runtime)  in snd_rawmidi_open()
456 		rawmidi_file->output->runtime->oss = (maj == SOUND_MAJOR);  in snd_rawmidi_open()
495 	if (substream->runtime->private_free)  in close_substream()
496 		substream->runtime->private_free(substream);  in close_substream()
647 static int resize_runtime_buffer(struct snd_rawmidi_runtime *runtime,  in resize_runtime_buffer()  argument
657 	if (params->buffer_size != runtime->buffer_size) {  in resize_runtime_buffer()
661 		spin_lock_irq(&runtime->lock);  in resize_runtime_buffer()
662 		oldbuf = runtime->buffer;  in resize_runtime_buffer()
663 		runtime->buffer = newbuf;  in resize_runtime_buffer()
664 		runtime->buffer_size = params->buffer_size;  in resize_runtime_buffer()
665 		__reset_runtime_ptrs(runtime, is_input);  in resize_runtime_buffer()
666 		spin_unlock_irq(&runtime->lock);  in resize_runtime_buffer()
669 	runtime->avail_min = params->avail_min;  in resize_runtime_buffer()
680 	return resize_runtime_buffer(substream->runtime, params, false);  in snd_rawmidi_output_params()
688 	return resize_runtime_buffer(substream->runtime, params, true);  in snd_rawmidi_input_params()
695 	struct snd_rawmidi_runtime *runtime = substream->runtime;  in snd_rawmidi_output_status()  local
699 	spin_lock_irq(&runtime->lock);  in snd_rawmidi_output_status()
700 	status->avail = runtime->avail;  in snd_rawmidi_output_status()
701 	spin_unlock_irq(&runtime->lock);  in snd_rawmidi_output_status()
708 	struct snd_rawmidi_runtime *runtime = substream->runtime;  in snd_rawmidi_input_status()  local
712 	spin_lock_irq(&runtime->lock);  in snd_rawmidi_input_status()
713 	status->avail = runtime->avail;  in snd_rawmidi_input_status()
714 	status->xruns = runtime->xruns;  in snd_rawmidi_input_status()
715 	runtime->xruns = 0;  in snd_rawmidi_input_status()
716 	spin_unlock_irq(&runtime->lock);  in snd_rawmidi_input_status()
894 	struct snd_rawmidi_runtime *runtime = substream->runtime;  in snd_rawmidi_receive()  local
898 	if (runtime->buffer == NULL) {  in snd_rawmidi_receive()
903 	spin_lock_irqsave(&runtime->lock, flags);  in snd_rawmidi_receive()
906 		if (runtime->avail < runtime->buffer_size) {  in snd_rawmidi_receive()
907 			runtime->buffer[runtime->hw_ptr++] = buffer[0];  in snd_rawmidi_receive()
908 			runtime->hw_ptr %= runtime->buffer_size;  in snd_rawmidi_receive()
909 			runtime->avail++;  in snd_rawmidi_receive()
912 			runtime->xruns++;  in snd_rawmidi_receive()
916 		count1 = runtime->buffer_size - runtime->hw_ptr;  in snd_rawmidi_receive()
919 		if (count1 > (int)(runtime->buffer_size - runtime->avail))  in snd_rawmidi_receive()
920 			count1 = runtime->buffer_size - runtime->avail;  in snd_rawmidi_receive()
921 		memcpy(runtime->buffer + runtime->hw_ptr, buffer, count1);  in snd_rawmidi_receive()
922 		runtime->hw_ptr += count1;  in snd_rawmidi_receive()
923 		runtime->hw_ptr %= runtime->buffer_size;  in snd_rawmidi_receive()
924 		runtime->avail += count1;  in snd_rawmidi_receive()
930 			if (count1 > (int)(runtime->buffer_size - runtime->avail)) {  in snd_rawmidi_receive()
931 				count1 = runtime->buffer_size - runtime->avail;  in snd_rawmidi_receive()
932 				runtime->xruns += count - count1;  in snd_rawmidi_receive()
935 				memcpy(runtime->buffer, buffer, count1);  in snd_rawmidi_receive()
936 				runtime->hw_ptr = count1;  in snd_rawmidi_receive()
937 				runtime->avail += count1;  in snd_rawmidi_receive()
943 		if (runtime->event)  in snd_rawmidi_receive()
944 			schedule_work(&runtime->event_work);  in snd_rawmidi_receive()
946 			wake_up(&runtime->sleep);  in snd_rawmidi_receive()
948 	spin_unlock_irqrestore(&runtime->lock, flags);  in snd_rawmidi_receive()
959 	struct snd_rawmidi_runtime *runtime = substream->runtime;  in snd_rawmidi_kernel_read1()  local
962 	spin_lock_irqsave(&runtime->lock, flags);  in snd_rawmidi_kernel_read1()
963 	while (count > 0 && runtime->avail) {  in snd_rawmidi_kernel_read1()
964 		count1 = runtime->buffer_size - runtime->appl_ptr;  in snd_rawmidi_kernel_read1()
967 		if (count1 > (int)runtime->avail)  in snd_rawmidi_kernel_read1()
968 			count1 = runtime->avail;  in snd_rawmidi_kernel_read1()
971 		appl_ptr = runtime->appl_ptr;  in snd_rawmidi_kernel_read1()
972 		runtime->appl_ptr += count1;  in snd_rawmidi_kernel_read1()
973 		runtime->appl_ptr %= runtime->buffer_size;  in snd_rawmidi_kernel_read1()
974 		runtime->avail -= count1;  in snd_rawmidi_kernel_read1()
977 			memcpy(kernelbuf + result, runtime->buffer + appl_ptr, count1);  in snd_rawmidi_kernel_read1()
979 			spin_unlock_irqrestore(&runtime->lock, flags);  in snd_rawmidi_kernel_read1()
981 					 runtime->buffer + appl_ptr, count1)) {  in snd_rawmidi_kernel_read1()
984 			spin_lock_irqsave(&runtime->lock, flags);  in snd_rawmidi_kernel_read1()
989 	spin_unlock_irqrestore(&runtime->lock, flags);  in snd_rawmidi_kernel_read1()
1008 	struct snd_rawmidi_runtime *runtime;  in snd_rawmidi_read()  local
1014 	runtime = substream->runtime;  in snd_rawmidi_read()
1018 		spin_lock_irq(&runtime->lock);  in snd_rawmidi_read()
1023 				spin_unlock_irq(&runtime->lock);  in snd_rawmidi_read()
1027 			add_wait_queue(&runtime->sleep, &wait);  in snd_rawmidi_read()
1029 			spin_unlock_irq(&runtime->lock);  in snd_rawmidi_read()
1031 			remove_wait_queue(&runtime->sleep, &wait);  in snd_rawmidi_read()
1036 			if (!runtime->avail)  in snd_rawmidi_read()
1038 			spin_lock_irq(&runtime->lock);  in snd_rawmidi_read()
1040 		spin_unlock_irq(&runtime->lock);  in snd_rawmidi_read()
1062 	struct snd_rawmidi_runtime *runtime = substream->runtime;  in snd_rawmidi_transmit_empty()  local
1066 	if (runtime->buffer == NULL) {  in snd_rawmidi_transmit_empty()
1071 	spin_lock_irqsave(&runtime->lock, flags);  in snd_rawmidi_transmit_empty()
1072 	result = runtime->avail >= runtime->buffer_size;  in snd_rawmidi_transmit_empty()
1073 	spin_unlock_irqrestore(&runtime->lock, flags);  in snd_rawmidi_transmit_empty()
1090 	struct snd_rawmidi_runtime *runtime = substream->runtime;  in __snd_rawmidi_transmit_peek()  local
1092 	if (runtime->buffer == NULL) {  in __snd_rawmidi_transmit_peek()
1098 	if (runtime->avail >= runtime->buffer_size) {  in __snd_rawmidi_transmit_peek()
1103 		*buffer = runtime->buffer[runtime->hw_ptr];  in __snd_rawmidi_transmit_peek()
1106 		count1 = runtime->buffer_size - runtime->hw_ptr;  in __snd_rawmidi_transmit_peek()
1109 		if (count1 > (int)(runtime->buffer_size - runtime->avail))  in __snd_rawmidi_transmit_peek()
1110 			count1 = runtime->buffer_size - runtime->avail;  in __snd_rawmidi_transmit_peek()
1111 		memcpy(buffer, runtime->buffer + runtime->hw_ptr, count1);  in __snd_rawmidi_transmit_peek()
1115 			if (count > (int)(runtime->buffer_size - runtime->avail - count1))  in __snd_rawmidi_transmit_peek()
1116 				count = runtime->buffer_size - runtime->avail - count1;  in __snd_rawmidi_transmit_peek()
1117 			memcpy(buffer + count1, runtime->buffer, count);  in __snd_rawmidi_transmit_peek()
1143 	struct snd_rawmidi_runtime *runtime = substream->runtime;  in snd_rawmidi_transmit_peek()  local
1147 	spin_lock_irqsave(&runtime->lock, flags);  in snd_rawmidi_transmit_peek()
1149 	spin_unlock_irqrestore(&runtime->lock, flags);  in snd_rawmidi_transmit_peek()
1163 	struct snd_rawmidi_runtime *runtime = substream->runtime;  in __snd_rawmidi_transmit_ack()  local
1165 	if (runtime->buffer == NULL) {  in __snd_rawmidi_transmit_ack()
1170 	snd_BUG_ON(runtime->avail + count > runtime->buffer_size);  in __snd_rawmidi_transmit_ack()
1171 	runtime->hw_ptr += count;  in __snd_rawmidi_transmit_ack()
1172 	runtime->hw_ptr %= runtime->buffer_size;  in __snd_rawmidi_transmit_ack()
1173 	runtime->avail += count;  in __snd_rawmidi_transmit_ack()
1176 		if (runtime->drain || snd_rawmidi_ready(substream))  in __snd_rawmidi_transmit_ack()
1177 			wake_up(&runtime->sleep);  in __snd_rawmidi_transmit_ack()
1196 	struct snd_rawmidi_runtime *runtime = substream->runtime;  in snd_rawmidi_transmit_ack()  local
1200 	spin_lock_irqsave(&runtime->lock, flags);  in snd_rawmidi_transmit_ack()
1202 	spin_unlock_irqrestore(&runtime->lock, flags);  in snd_rawmidi_transmit_ack()
1220 	struct snd_rawmidi_runtime *runtime = substream->runtime;  in snd_rawmidi_transmit()  local
1224 	spin_lock_irqsave(&runtime->lock, flags);  in snd_rawmidi_transmit()
1234 	spin_unlock_irqrestore(&runtime->lock, flags);  in snd_rawmidi_transmit()
1246 	struct snd_rawmidi_runtime *runtime = substream->runtime;  in snd_rawmidi_kernel_write1()  local
1251 	if (snd_BUG_ON(!runtime->buffer))  in snd_rawmidi_kernel_write1()
1255 	spin_lock_irqsave(&runtime->lock, flags);  in snd_rawmidi_kernel_write1()
1257 		if ((long)runtime->avail < count) {  in snd_rawmidi_kernel_write1()
1258 			spin_unlock_irqrestore(&runtime->lock, flags);  in snd_rawmidi_kernel_write1()
1262 	while (count > 0 && runtime->avail > 0) {  in snd_rawmidi_kernel_write1()
1263 		count1 = runtime->buffer_size - runtime->appl_ptr;  in snd_rawmidi_kernel_write1()
1266 		if (count1 > (long)runtime->avail)  in snd_rawmidi_kernel_write1()
1267 			count1 = runtime->avail;  in snd_rawmidi_kernel_write1()
1270 		appl_ptr = runtime->appl_ptr;  in snd_rawmidi_kernel_write1()
1271 		runtime->appl_ptr += count1;  in snd_rawmidi_kernel_write1()
1272 		runtime->appl_ptr %= runtime->buffer_size;  in snd_rawmidi_kernel_write1()
1273 		runtime->avail -= count1;  in snd_rawmidi_kernel_write1()
1276 			memcpy(runtime->buffer + appl_ptr,  in snd_rawmidi_kernel_write1()
1279 			spin_unlock_irqrestore(&runtime->lock, flags);  in snd_rawmidi_kernel_write1()
1280 			if (copy_from_user(runtime->buffer + appl_ptr,  in snd_rawmidi_kernel_write1()
1282 				spin_lock_irqsave(&runtime->lock, flags);  in snd_rawmidi_kernel_write1()
1286 			spin_lock_irqsave(&runtime->lock, flags);  in snd_rawmidi_kernel_write1()
1292 	count1 = runtime->avail < runtime->buffer_size;  in snd_rawmidi_kernel_write1()
1293 	spin_unlock_irqrestore(&runtime->lock, flags);  in snd_rawmidi_kernel_write1()
1312 	struct snd_rawmidi_runtime *runtime;  in snd_rawmidi_write()  local
1317 	runtime = substream->runtime;  in snd_rawmidi_write()
1319 	if (substream->append && count > runtime->buffer_size)  in snd_rawmidi_write()
1323 		spin_lock_irq(&runtime->lock);  in snd_rawmidi_write()
1328 				spin_unlock_irq(&runtime->lock);  in snd_rawmidi_write()
1332 			add_wait_queue(&runtime->sleep, &wait);  in snd_rawmidi_write()
1334 			spin_unlock_irq(&runtime->lock);  in snd_rawmidi_write()
1336 			remove_wait_queue(&runtime->sleep, &wait);  in snd_rawmidi_write()
1341 			if (!runtime->avail && !timeout)  in snd_rawmidi_write()
1343 			spin_lock_irq(&runtime->lock);  in snd_rawmidi_write()
1345 		spin_unlock_irq(&runtime->lock);  in snd_rawmidi_write()
1356 		spin_lock_irq(&runtime->lock);  in snd_rawmidi_write()
1357 		while (runtime->avail != runtime->buffer_size) {  in snd_rawmidi_write()
1359 			unsigned int last_avail = runtime->avail;  in snd_rawmidi_write()
1362 			add_wait_queue(&runtime->sleep, &wait);  in snd_rawmidi_write()
1364 			spin_unlock_irq(&runtime->lock);  in snd_rawmidi_write()
1366 			remove_wait_queue(&runtime->sleep, &wait);  in snd_rawmidi_write()
1369 			if (runtime->avail == last_avail && !timeout)  in snd_rawmidi_write()
1371 			spin_lock_irq(&runtime->lock);  in snd_rawmidi_write()
1373 		spin_unlock_irq(&runtime->lock);  in snd_rawmidi_write()
1381 	struct snd_rawmidi_runtime *runtime;  in snd_rawmidi_poll()  local
1386 		runtime = rfile->input->runtime;  in snd_rawmidi_poll()
1388 		poll_wait(file, &runtime->sleep, wait);  in snd_rawmidi_poll()
1391 		runtime = rfile->output->runtime;  in snd_rawmidi_poll()
1392 		poll_wait(file, &runtime->sleep, wait);  in snd_rawmidi_poll()
1422 	struct snd_rawmidi_runtime *runtime;  in snd_rawmidi_proc_info_read()  local
1440 				runtime = substream->runtime;  in snd_rawmidi_proc_info_read()
1445 				    runtime->oss ? "OSS compatible" : "native",  in snd_rawmidi_proc_info_read()
1446 				    (unsigned long) runtime->buffer_size,  in snd_rawmidi_proc_info_read()
1447 				    (unsigned long) runtime->avail);  in snd_rawmidi_proc_info_read()
1464 				runtime = substream->runtime;  in snd_rawmidi_proc_info_read()
1469 					    (unsigned long) runtime->buffer_size,  in snd_rawmidi_proc_info_read()
1470 					    (unsigned long) runtime->avail,  in snd_rawmidi_proc_info_read()
1471 					    (unsigned long) runtime->xruns);  in snd_rawmidi_proc_info_read()
1745 			if (s->runtime)  in snd_rawmidi_dev_disconnect()
1746 				wake_up(&s->runtime->sleep);  in snd_rawmidi_dev_disconnect()