49 static int snd_pcm_plugin_alloc(struct snd_pcm_plugin *plugin, snd_pcm_uframes_t frames)  in snd_pcm_plugin_alloc()  argument
57 	if (plugin->stream == SNDRV_PCM_STREAM_PLAYBACK) {  in snd_pcm_plugin_alloc()
58 		format = &plugin->src_format;  in snd_pcm_plugin_alloc()
60 		format = &plugin->dst_format;  in snd_pcm_plugin_alloc()
69 	if (plugin->buf_frames < frames) {  in snd_pcm_plugin_alloc()
70 		kvfree(plugin->buf);  in snd_pcm_plugin_alloc()
71 		plugin->buf = kvzalloc(size, GFP_KERNEL);  in snd_pcm_plugin_alloc()
72 		plugin->buf_frames = frames;  in snd_pcm_plugin_alloc()
74 	if (!plugin->buf) {  in snd_pcm_plugin_alloc()
75 		plugin->buf_frames = 0;  in snd_pcm_plugin_alloc()
78 	c = plugin->buf_channels;  in snd_pcm_plugin_alloc()
79 	if (plugin->access == SNDRV_PCM_ACCESS_RW_INTERLEAVED) {  in snd_pcm_plugin_alloc()
84 			c->area.addr = plugin->buf;  in snd_pcm_plugin_alloc()
88 	} else if (plugin->access == SNDRV_PCM_ACCESS_RW_NONINTERLEAVED) {  in snd_pcm_plugin_alloc()
96 			c->area.addr = plugin->buf + (channel * size);  in snd_pcm_plugin_alloc()
111 		struct snd_pcm_plugin *plugin = snd_pcm_plug_first(plug);  in snd_pcm_plug_alloc()  local
112 		while (plugin->next) {  in snd_pcm_plug_alloc()
113 			if (plugin->dst_frames)  in snd_pcm_plug_alloc()
114 				frames = plugin->dst_frames(plugin, frames);  in snd_pcm_plug_alloc()
117 			plugin = plugin->next;  in snd_pcm_plug_alloc()
118 			err = snd_pcm_plugin_alloc(plugin, frames);  in snd_pcm_plug_alloc()
123 		struct snd_pcm_plugin *plugin = snd_pcm_plug_last(plug);  in snd_pcm_plug_alloc()  local
124 		while (plugin->prev) {  in snd_pcm_plug_alloc()
125 			if (plugin->src_frames)  in snd_pcm_plug_alloc()
126 				frames = plugin->src_frames(plugin, frames);  in snd_pcm_plug_alloc()
129 			plugin = plugin->prev;  in snd_pcm_plug_alloc()
130 			err = snd_pcm_plugin_alloc(plugin, frames);  in snd_pcm_plug_alloc()
139 snd_pcm_sframes_t snd_pcm_plugin_client_channels(struct snd_pcm_plugin *plugin,  in snd_pcm_plugin_client_channels()  argument
143 	*channels = plugin->buf_channels;  in snd_pcm_plugin_client_channels()
154 	struct snd_pcm_plugin *plugin;  in snd_pcm_plugin_build()  local
161 	plugin = kzalloc(sizeof(*plugin) + extra, GFP_KERNEL);  in snd_pcm_plugin_build()
162 	if (plugin == NULL)  in snd_pcm_plugin_build()
164 	plugin->name = name;  in snd_pcm_plugin_build()
165 	plugin->plug = plug;  in snd_pcm_plugin_build()
166 	plugin->stream = snd_pcm_plug_stream(plug);  in snd_pcm_plugin_build()
167 	plugin->access = SNDRV_PCM_ACCESS_RW_INTERLEAVED;  in snd_pcm_plugin_build()
168 	plugin->src_format = *src_format;  in snd_pcm_plugin_build()
169 	plugin->src_width = snd_pcm_format_physical_width(src_format->format);  in snd_pcm_plugin_build()
170 	snd_BUG_ON(plugin->src_width <= 0);  in snd_pcm_plugin_build()
171 	plugin->dst_format = *dst_format;  in snd_pcm_plugin_build()
172 	plugin->dst_width = snd_pcm_format_physical_width(dst_format->format);  in snd_pcm_plugin_build()
173 	snd_BUG_ON(plugin->dst_width <= 0);  in snd_pcm_plugin_build()
174 	if (plugin->stream == SNDRV_PCM_STREAM_PLAYBACK)  in snd_pcm_plugin_build()
178 	plugin->buf_channels = kcalloc(channels, sizeof(*plugin->buf_channels), GFP_KERNEL);  in snd_pcm_plugin_build()
179 	if (plugin->buf_channels == NULL) {  in snd_pcm_plugin_build()
180 		snd_pcm_plugin_free(plugin);  in snd_pcm_plugin_build()
183 	plugin->client_channels = snd_pcm_plugin_client_channels;  in snd_pcm_plugin_build()
184 	*ret = plugin;  in snd_pcm_plugin_build()
188 int snd_pcm_plugin_free(struct snd_pcm_plugin *plugin)  in snd_pcm_plugin_free()  argument
190 	if (! plugin)  in snd_pcm_plugin_free()
192 	if (plugin->private_free)  in snd_pcm_plugin_free()
193 		plugin->private_free(plugin);  in snd_pcm_plugin_free()
194 	kfree(plugin->buf_channels);  in snd_pcm_plugin_free()
195 	kvfree(plugin->buf);  in snd_pcm_plugin_free()
196 	kfree(plugin);  in snd_pcm_plugin_free()
204 	struct snd_pcm_plugin *plugin, *plugin_next;  in calc_dst_frames()  local
206 	plugin = snd_pcm_plug_first(plug);  in calc_dst_frames()
207 	while (plugin && frames > 0) {  in calc_dst_frames()
208 		plugin_next = plugin->next;  in calc_dst_frames()
209 		if (check_size && plugin->buf_frames &&  in calc_dst_frames()
210 		    frames > plugin->buf_frames)  in calc_dst_frames()
211 			frames = plugin->buf_frames;  in calc_dst_frames()
212 		if (plugin->dst_frames) {  in calc_dst_frames()
213 			frames = plugin->dst_frames(plugin, frames);  in calc_dst_frames()
217 		plugin = plugin_next;  in calc_dst_frames()
226 	struct snd_pcm_plugin *plugin, *plugin_prev;  in calc_src_frames()  local
228 	plugin = snd_pcm_plug_last(plug);  in calc_src_frames()
229 	while (plugin && frames > 0) {  in calc_src_frames()
230 		plugin_prev = plugin->prev;  in calc_src_frames()
231 		if (plugin->src_frames) {  in calc_src_frames()
232 			frames = plugin->src_frames(plugin, frames);  in calc_src_frames()
236 		if (check_size && plugin->buf_frames &&  in calc_src_frames()
237 		    frames > plugin->buf_frames)  in calc_src_frames()
238 			frames = plugin->buf_frames;  in calc_src_frames()
239 		plugin = plugin_prev;  in calc_src_frames()
376 	struct snd_pcm_plugin *plugin = NULL;  in snd_pcm_plug_format_plugins()  local
428 						 &plugin);  in snd_pcm_plug_format_plugins()
431 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
433 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
443 		err = snd_pcm_plugin_build_route(plug, &srcformat, &tmpformat, &plugin);  in snd_pcm_plug_format_plugins()
447 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
449 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
463 							  &plugin);  in snd_pcm_plug_format_plugins()
466 			err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
468 				snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
477 						&plugin);  in snd_pcm_plug_format_plugins()
481 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
483 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
497 							 &plugin);  in snd_pcm_plug_format_plugins()
503 							  &plugin);  in snd_pcm_plug_format_plugins()
510 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
512 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
522 		err = snd_pcm_plugin_build_route(plug, &srcformat, &tmpformat, &plugin);  in snd_pcm_plug_format_plugins()
526 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
528 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
540 						&plugin);  in snd_pcm_plug_format_plugins()
544 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
546 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
559 	struct snd_pcm_plugin *plugin;  in snd_pcm_plug_client_channels_buf()  local
568 		plugin = snd_pcm_plug_first(plug);  in snd_pcm_plug_client_channels_buf()
569 		format = &plugin->src_format;  in snd_pcm_plug_client_channels_buf()
571 		plugin = snd_pcm_plug_last(plug);  in snd_pcm_plug_client_channels_buf()
572 		format = &plugin->dst_format;  in snd_pcm_plug_client_channels_buf()
574 	v = plugin->buf_channels;  in snd_pcm_plug_client_channels_buf()
580 	if (snd_BUG_ON(plugin->access != SNDRV_PCM_ACCESS_RW_INTERLEAVED &&  in snd_pcm_plug_client_channels_buf()
596 	struct snd_pcm_plugin *plugin, *next;  in snd_pcm_plug_write_transfer()  local
601 	plugin = snd_pcm_plug_first(plug);  in snd_pcm_plug_write_transfer()
602 	while (plugin) {  in snd_pcm_plug_write_transfer()
605 		next = plugin->next;  in snd_pcm_plug_write_transfer()
608 			if (plugin->dst_frames) {  in snd_pcm_plug_write_transfer()
609 				frames1 = plugin->dst_frames(plugin, frames);  in snd_pcm_plug_write_transfer()
618 				if (plugin->src_frames) {  in snd_pcm_plug_write_transfer()
619 					frames = plugin->src_frames(plugin, frames1);  in snd_pcm_plug_write_transfer()
626 		pdprintf("write plugin: %s, %li\n", plugin->name, frames);  in snd_pcm_plug_write_transfer()
627 		frames = plugin->transfer(plugin, src_channels, dst_channels, frames);  in snd_pcm_plug_write_transfer()
631 		plugin = next;  in snd_pcm_plug_write_transfer()
638 	struct snd_pcm_plugin *plugin, *next;  in snd_pcm_plug_read_transfer()  local
648 	plugin = snd_pcm_plug_first(plug);  in snd_pcm_plug_read_transfer()
649 	while (plugin && frames > 0) {  in snd_pcm_plug_read_transfer()
650 		next = plugin->next;  in snd_pcm_plug_read_transfer()
652 			err = plugin->client_channels(plugin, frames, &dst_channels);  in snd_pcm_plug_read_transfer()
659 		pdprintf("read plugin: %s, %li\n", plugin->name, frames);  in snd_pcm_plug_read_transfer()
660 		frames = plugin->transfer(plugin, src_channels, dst_channels, frames);  in snd_pcm_plug_read_transfer()
663 		plugin = next;  in snd_pcm_plug_read_transfer()