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()
68 	if (plugin->buf_frames < frames) {  in snd_pcm_plugin_alloc()
69 		kvfree(plugin->buf);  in snd_pcm_plugin_alloc()
70 		plugin->buf = kvzalloc(size, GFP_KERNEL);  in snd_pcm_plugin_alloc()
71 		plugin->buf_frames = frames;  in snd_pcm_plugin_alloc()
73 	if (!plugin->buf) {  in snd_pcm_plugin_alloc()
74 		plugin->buf_frames = 0;  in snd_pcm_plugin_alloc()
77 	c = plugin->buf_channels;  in snd_pcm_plugin_alloc()
78 	if (plugin->access == SNDRV_PCM_ACCESS_RW_INTERLEAVED) {  in snd_pcm_plugin_alloc()
83 			c->area.addr = plugin->buf;  in snd_pcm_plugin_alloc()
87 	} else if (plugin->access == SNDRV_PCM_ACCESS_RW_NONINTERLEAVED) {  in snd_pcm_plugin_alloc()
95 			c->area.addr = plugin->buf + (channel * size);  in snd_pcm_plugin_alloc()
110 		struct snd_pcm_plugin *plugin = snd_pcm_plug_first(plug);  in snd_pcm_plug_alloc()  local
111 		while (plugin->next) {  in snd_pcm_plug_alloc()
112 			if (plugin->dst_frames)  in snd_pcm_plug_alloc()
113 				frames = plugin->dst_frames(plugin, frames);  in snd_pcm_plug_alloc()
116 			plugin = plugin->next;  in snd_pcm_plug_alloc()
117 			err = snd_pcm_plugin_alloc(plugin, frames);  in snd_pcm_plug_alloc()
122 		struct snd_pcm_plugin *plugin = snd_pcm_plug_last(plug);  in snd_pcm_plug_alloc()  local
123 		while (plugin->prev) {  in snd_pcm_plug_alloc()
124 			if (plugin->src_frames)  in snd_pcm_plug_alloc()
125 				frames = plugin->src_frames(plugin, frames);  in snd_pcm_plug_alloc()
128 			plugin = plugin->prev;  in snd_pcm_plug_alloc()
129 			err = snd_pcm_plugin_alloc(plugin, frames);  in snd_pcm_plug_alloc()
138 snd_pcm_sframes_t snd_pcm_plugin_client_channels(struct snd_pcm_plugin *plugin,  in snd_pcm_plugin_client_channels()  argument
142 	*channels = plugin->buf_channels;  in snd_pcm_plugin_client_channels()
153 	struct snd_pcm_plugin *plugin;  in snd_pcm_plugin_build()  local
160 	plugin = kzalloc(sizeof(*plugin) + extra, GFP_KERNEL);  in snd_pcm_plugin_build()
161 	if (plugin == NULL)  in snd_pcm_plugin_build()
163 	plugin->name = name;  in snd_pcm_plugin_build()
164 	plugin->plug = plug;  in snd_pcm_plugin_build()
165 	plugin->stream = snd_pcm_plug_stream(plug);  in snd_pcm_plugin_build()
166 	plugin->access = SNDRV_PCM_ACCESS_RW_INTERLEAVED;  in snd_pcm_plugin_build()
167 	plugin->src_format = *src_format;  in snd_pcm_plugin_build()
168 	plugin->src_width = snd_pcm_format_physical_width(src_format->format);  in snd_pcm_plugin_build()
169 	snd_BUG_ON(plugin->src_width <= 0);  in snd_pcm_plugin_build()
170 	plugin->dst_format = *dst_format;  in snd_pcm_plugin_build()
171 	plugin->dst_width = snd_pcm_format_physical_width(dst_format->format);  in snd_pcm_plugin_build()
172 	snd_BUG_ON(plugin->dst_width <= 0);  in snd_pcm_plugin_build()
173 	if (plugin->stream == SNDRV_PCM_STREAM_PLAYBACK)  in snd_pcm_plugin_build()
177 	plugin->buf_channels = kcalloc(channels, sizeof(*plugin->buf_channels), GFP_KERNEL);  in snd_pcm_plugin_build()
178 	if (plugin->buf_channels == NULL) {  in snd_pcm_plugin_build()
179 		snd_pcm_plugin_free(plugin);  in snd_pcm_plugin_build()
182 	plugin->client_channels = snd_pcm_plugin_client_channels;  in snd_pcm_plugin_build()
183 	*ret = plugin;  in snd_pcm_plugin_build()
187 int snd_pcm_plugin_free(struct snd_pcm_plugin *plugin)  in snd_pcm_plugin_free()  argument
189 	if (! plugin)  in snd_pcm_plugin_free()
191 	if (plugin->private_free)  in snd_pcm_plugin_free()
192 		plugin->private_free(plugin);  in snd_pcm_plugin_free()
193 	kfree(plugin->buf_channels);  in snd_pcm_plugin_free()
194 	kvfree(plugin->buf);  in snd_pcm_plugin_free()
195 	kfree(plugin);  in snd_pcm_plugin_free()
201 	struct snd_pcm_plugin *plugin, *plugin_prev, *plugin_next;  in snd_pcm_plug_client_size()  local
210 		plugin = snd_pcm_plug_last(plug);  in snd_pcm_plug_client_size()
211 		while (plugin && drv_frames > 0) {  in snd_pcm_plug_client_size()
212 			plugin_prev = plugin->prev;  in snd_pcm_plug_client_size()
213 			if (plugin->src_frames)  in snd_pcm_plug_client_size()
214 				drv_frames = plugin->src_frames(plugin, drv_frames);  in snd_pcm_plug_client_size()
215 			plugin = plugin_prev;  in snd_pcm_plug_client_size()
218 		plugin = snd_pcm_plug_first(plug);  in snd_pcm_plug_client_size()
219 		while (plugin && drv_frames > 0) {  in snd_pcm_plug_client_size()
220 			plugin_next = plugin->next;  in snd_pcm_plug_client_size()
221 			if (plugin->dst_frames)  in snd_pcm_plug_client_size()
222 				drv_frames = plugin->dst_frames(plugin, drv_frames);  in snd_pcm_plug_client_size()
223 			plugin = plugin_next;  in snd_pcm_plug_client_size()
232 	struct snd_pcm_plugin *plugin, *plugin_prev, *plugin_next;  in snd_pcm_plug_slave_size()  local
243 		plugin = snd_pcm_plug_first(plug);  in snd_pcm_plug_slave_size()
244 		while (plugin && frames > 0) {  in snd_pcm_plug_slave_size()
245 			plugin_next = plugin->next;  in snd_pcm_plug_slave_size()
246 			if (plugin->dst_frames) {  in snd_pcm_plug_slave_size()
247 				frames = plugin->dst_frames(plugin, frames);  in snd_pcm_plug_slave_size()
251 			plugin = plugin_next;  in snd_pcm_plug_slave_size()
254 		plugin = snd_pcm_plug_last(plug);  in snd_pcm_plug_slave_size()
255 		while (plugin) {  in snd_pcm_plug_slave_size()
256 			plugin_prev = plugin->prev;  in snd_pcm_plug_slave_size()
257 			if (plugin->src_frames) {  in snd_pcm_plug_slave_size()
258 				frames = plugin->src_frames(plugin, frames);  in snd_pcm_plug_slave_size()
262 			plugin = plugin_prev;  in snd_pcm_plug_slave_size()
371 	struct snd_pcm_plugin *plugin = NULL;  in snd_pcm_plug_format_plugins()  local
423 						 &plugin);  in snd_pcm_plug_format_plugins()
426 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
428 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
438 		err = snd_pcm_plugin_build_route(plug, &srcformat, &tmpformat, &plugin);  in snd_pcm_plug_format_plugins()
442 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
444 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
458 							  &plugin);  in snd_pcm_plug_format_plugins()
461 			err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
463 				snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
472 						&plugin);  in snd_pcm_plug_format_plugins()
476 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
478 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
492 							 &plugin);  in snd_pcm_plug_format_plugins()
498 							  &plugin);  in snd_pcm_plug_format_plugins()
505 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
507 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
517 		err = snd_pcm_plugin_build_route(plug, &srcformat, &tmpformat, &plugin);  in snd_pcm_plug_format_plugins()
521 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
523 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
535 						&plugin);  in snd_pcm_plug_format_plugins()
539 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
541 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
554 	struct snd_pcm_plugin *plugin;  in snd_pcm_plug_client_channels_buf()  local
563 		plugin = snd_pcm_plug_first(plug);  in snd_pcm_plug_client_channels_buf()
564 		format = &plugin->src_format;  in snd_pcm_plug_client_channels_buf()
566 		plugin = snd_pcm_plug_last(plug);  in snd_pcm_plug_client_channels_buf()
567 		format = &plugin->dst_format;  in snd_pcm_plug_client_channels_buf()
569 	v = plugin->buf_channels;  in snd_pcm_plug_client_channels_buf()
574 	if (snd_BUG_ON(plugin->access != SNDRV_PCM_ACCESS_RW_INTERLEAVED &&  in snd_pcm_plug_client_channels_buf()
590 	struct snd_pcm_plugin *plugin, *next;  in snd_pcm_plug_write_transfer()  local
595 	plugin = snd_pcm_plug_first(plug);  in snd_pcm_plug_write_transfer()
596 	while (plugin) {  in snd_pcm_plug_write_transfer()
599 		if ((next = plugin->next) != NULL) {  in snd_pcm_plug_write_transfer()
601 			if (plugin->dst_frames) {  in snd_pcm_plug_write_transfer()
602 				frames1 = plugin->dst_frames(plugin, frames);  in snd_pcm_plug_write_transfer()
611 				if (plugin->src_frames) {  in snd_pcm_plug_write_transfer()
612 					frames = plugin->src_frames(plugin, frames1);  in snd_pcm_plug_write_transfer()
619 		pdprintf("write plugin: %s, %li\n", plugin->name, frames);  in snd_pcm_plug_write_transfer()
620 		if ((frames = plugin->transfer(plugin, src_channels, dst_channels, frames)) < 0)  in snd_pcm_plug_write_transfer()
623 		plugin = next;  in snd_pcm_plug_write_transfer()
630 	struct snd_pcm_plugin *plugin, *next;  in snd_pcm_plug_read_transfer()  local
640 	plugin = snd_pcm_plug_first(plug);  in snd_pcm_plug_read_transfer()
641 	while (plugin && frames > 0) {  in snd_pcm_plug_read_transfer()
642 		if ((next = plugin->next) != NULL) {  in snd_pcm_plug_read_transfer()
643 			if ((err = plugin->client_channels(plugin, frames, &dst_channels)) < 0) {  in snd_pcm_plug_read_transfer()
650 		pdprintf("read plugin: %s, %li\n", plugin->name, frames);  in snd_pcm_plug_read_transfer()
651 		if ((frames = plugin->transfer(plugin, src_channels, dst_channels, frames)) < 0)  in snd_pcm_plug_read_transfer()
653 		plugin = next;  in snd_pcm_plug_read_transfer()