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()
72 	if (plugin->buf_frames < frames) {  in snd_pcm_plugin_alloc()
73 		kvfree(plugin->buf);  in snd_pcm_plugin_alloc()
74 		plugin->buf = kvzalloc(size, GFP_KERNEL);  in snd_pcm_plugin_alloc()
75 		plugin->buf_frames = frames;  in snd_pcm_plugin_alloc()
77 	if (!plugin->buf) {  in snd_pcm_plugin_alloc()
78 		plugin->buf_frames = 0;  in snd_pcm_plugin_alloc()
81 	c = plugin->buf_channels;  in snd_pcm_plugin_alloc()
82 	if (plugin->access == SNDRV_PCM_ACCESS_RW_INTERLEAVED) {  in snd_pcm_plugin_alloc()
87 			c->area.addr = plugin->buf;  in snd_pcm_plugin_alloc()
91 	} else if (plugin->access == SNDRV_PCM_ACCESS_RW_NONINTERLEAVED) {  in snd_pcm_plugin_alloc()
99 			c->area.addr = plugin->buf + (channel * size);  in snd_pcm_plugin_alloc()
114 		struct snd_pcm_plugin *plugin = snd_pcm_plug_first(plug);  in snd_pcm_plug_alloc()  local
115 		while (plugin->next) {  in snd_pcm_plug_alloc()
116 			if (plugin->dst_frames)  in snd_pcm_plug_alloc()
117 				frames = plugin->dst_frames(plugin, frames);  in snd_pcm_plug_alloc()
120 			plugin = plugin->next;  in snd_pcm_plug_alloc()
121 			err = snd_pcm_plugin_alloc(plugin, frames);  in snd_pcm_plug_alloc()
126 		struct snd_pcm_plugin *plugin = snd_pcm_plug_last(plug);  in snd_pcm_plug_alloc()  local
127 		while (plugin->prev) {  in snd_pcm_plug_alloc()
128 			if (plugin->src_frames)  in snd_pcm_plug_alloc()
129 				frames = plugin->src_frames(plugin, frames);  in snd_pcm_plug_alloc()
132 			plugin = plugin->prev;  in snd_pcm_plug_alloc()
133 			err = snd_pcm_plugin_alloc(plugin, frames);  in snd_pcm_plug_alloc()
142 snd_pcm_sframes_t snd_pcm_plugin_client_channels(struct snd_pcm_plugin *plugin,  in snd_pcm_plugin_client_channels()  argument
146 	*channels = plugin->buf_channels;  in snd_pcm_plugin_client_channels()
157 	struct snd_pcm_plugin *plugin;  in snd_pcm_plugin_build()  local
164 	plugin = kzalloc(sizeof(*plugin) + extra, GFP_KERNEL);  in snd_pcm_plugin_build()
165 	if (plugin == NULL)  in snd_pcm_plugin_build()
167 	plugin->name = name;  in snd_pcm_plugin_build()
168 	plugin->plug = plug;  in snd_pcm_plugin_build()
169 	plugin->stream = snd_pcm_plug_stream(plug);  in snd_pcm_plugin_build()
170 	plugin->access = SNDRV_PCM_ACCESS_RW_INTERLEAVED;  in snd_pcm_plugin_build()
171 	plugin->src_format = *src_format;  in snd_pcm_plugin_build()
172 	plugin->src_width = snd_pcm_format_physical_width(src_format->format);  in snd_pcm_plugin_build()
173 	snd_BUG_ON(plugin->src_width <= 0);  in snd_pcm_plugin_build()
174 	plugin->dst_format = *dst_format;  in snd_pcm_plugin_build()
175 	plugin->dst_width = snd_pcm_format_physical_width(dst_format->format);  in snd_pcm_plugin_build()
176 	snd_BUG_ON(plugin->dst_width <= 0);  in snd_pcm_plugin_build()
177 	if (plugin->stream == SNDRV_PCM_STREAM_PLAYBACK)  in snd_pcm_plugin_build()
181 	plugin->buf_channels = kcalloc(channels, sizeof(*plugin->buf_channels), GFP_KERNEL);  in snd_pcm_plugin_build()
182 	if (plugin->buf_channels == NULL) {  in snd_pcm_plugin_build()
183 		snd_pcm_plugin_free(plugin);  in snd_pcm_plugin_build()
186 	plugin->client_channels = snd_pcm_plugin_client_channels;  in snd_pcm_plugin_build()
187 	*ret = plugin;  in snd_pcm_plugin_build()
191 int snd_pcm_plugin_free(struct snd_pcm_plugin *plugin)  in snd_pcm_plugin_free()  argument
193 	if (! plugin)  in snd_pcm_plugin_free()
195 	if (plugin->private_free)  in snd_pcm_plugin_free()
196 		plugin->private_free(plugin);  in snd_pcm_plugin_free()
197 	kfree(plugin->buf_channels);  in snd_pcm_plugin_free()
198 	kvfree(plugin->buf);  in snd_pcm_plugin_free()
199 	kfree(plugin);  in snd_pcm_plugin_free()
207 	struct snd_pcm_plugin *plugin, *plugin_next;  in calc_dst_frames()  local
209 	plugin = snd_pcm_plug_first(plug);  in calc_dst_frames()
210 	while (plugin && frames > 0) {  in calc_dst_frames()
211 		plugin_next = plugin->next;  in calc_dst_frames()
212 		if (check_size && plugin->buf_frames &&  in calc_dst_frames()
213 		    frames > plugin->buf_frames)  in calc_dst_frames()
214 			frames = plugin->buf_frames;  in calc_dst_frames()
215 		if (plugin->dst_frames) {  in calc_dst_frames()
216 			frames = plugin->dst_frames(plugin, frames);  in calc_dst_frames()
220 		plugin = plugin_next;  in calc_dst_frames()
229 	struct snd_pcm_plugin *plugin, *plugin_prev;  in calc_src_frames()  local
231 	plugin = snd_pcm_plug_last(plug);  in calc_src_frames()
232 	while (plugin && frames > 0) {  in calc_src_frames()
233 		plugin_prev = plugin->prev;  in calc_src_frames()
234 		if (plugin->src_frames) {  in calc_src_frames()
235 			frames = plugin->src_frames(plugin, frames);  in calc_src_frames()
239 		if (check_size && plugin->buf_frames &&  in calc_src_frames()
240 		    frames > plugin->buf_frames)  in calc_src_frames()
241 			frames = plugin->buf_frames;  in calc_src_frames()
242 		plugin = plugin_prev;  in calc_src_frames()
379 	struct snd_pcm_plugin *plugin = NULL;  in snd_pcm_plug_format_plugins()  local
431 						 &plugin);  in snd_pcm_plug_format_plugins()
434 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
436 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
446 		err = snd_pcm_plugin_build_route(plug, &srcformat, &tmpformat, &plugin);  in snd_pcm_plug_format_plugins()
450 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
452 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
466 							  &plugin);  in snd_pcm_plug_format_plugins()
469 			err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
471 				snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
480 						&plugin);  in snd_pcm_plug_format_plugins()
484 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
486 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
500 							 &plugin);  in snd_pcm_plug_format_plugins()
506 							  &plugin);  in snd_pcm_plug_format_plugins()
513 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
515 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
525 		err = snd_pcm_plugin_build_route(plug, &srcformat, &tmpformat, &plugin);  in snd_pcm_plug_format_plugins()
529 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
531 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
543 						&plugin);  in snd_pcm_plug_format_plugins()
547 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
549 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
562 	struct snd_pcm_plugin *plugin;  in snd_pcm_plug_client_channels_buf()  local
571 		plugin = snd_pcm_plug_first(plug);  in snd_pcm_plug_client_channels_buf()
572 		format = &plugin->src_format;  in snd_pcm_plug_client_channels_buf()
574 		plugin = snd_pcm_plug_last(plug);  in snd_pcm_plug_client_channels_buf()
575 		format = &plugin->dst_format;  in snd_pcm_plug_client_channels_buf()
577 	v = plugin->buf_channels;  in snd_pcm_plug_client_channels_buf()
583 	if (snd_BUG_ON(plugin->access != SNDRV_PCM_ACCESS_RW_INTERLEAVED &&  in snd_pcm_plug_client_channels_buf()
599 	struct snd_pcm_plugin *plugin, *next;  in snd_pcm_plug_write_transfer()  local
604 	plugin = snd_pcm_plug_first(plug);  in snd_pcm_plug_write_transfer()
605 	while (plugin) {  in snd_pcm_plug_write_transfer()
608 		next = plugin->next;  in snd_pcm_plug_write_transfer()
611 			if (plugin->dst_frames) {  in snd_pcm_plug_write_transfer()
612 				frames1 = plugin->dst_frames(plugin, frames);  in snd_pcm_plug_write_transfer()
621 				if (plugin->src_frames) {  in snd_pcm_plug_write_transfer()
622 					frames = plugin->src_frames(plugin, frames1);  in snd_pcm_plug_write_transfer()
629 		pdprintf("write plugin: %s, %li\n", plugin->name, frames);  in snd_pcm_plug_write_transfer()
630 		frames = plugin->transfer(plugin, src_channels, dst_channels, frames);  in snd_pcm_plug_write_transfer()
634 		plugin = next;  in snd_pcm_plug_write_transfer()
641 	struct snd_pcm_plugin *plugin, *next;  in snd_pcm_plug_read_transfer()  local
651 	plugin = snd_pcm_plug_first(plug);  in snd_pcm_plug_read_transfer()
652 	while (plugin && frames > 0) {  in snd_pcm_plug_read_transfer()
653 		next = plugin->next;  in snd_pcm_plug_read_transfer()
655 			err = plugin->client_channels(plugin, frames, &dst_channels);  in snd_pcm_plug_read_transfer()
662 		pdprintf("read plugin: %s, %li\n", plugin->name, frames);  in snd_pcm_plug_read_transfer()
663 		frames = plugin->transfer(plugin, src_channels, dst_channels, frames);  in snd_pcm_plug_read_transfer()
666 		plugin = next;  in snd_pcm_plug_read_transfer()