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()
203 	struct snd_pcm_plugin *plugin, *plugin_next;  in calc_dst_frames()  local
205 	plugin = snd_pcm_plug_first(plug);  in calc_dst_frames()
206 	while (plugin && frames > 0) {  in calc_dst_frames()
207 		plugin_next = plugin->next;  in calc_dst_frames()
208 		if (check_size && plugin->buf_frames &&  in calc_dst_frames()
209 		    frames > plugin->buf_frames)  in calc_dst_frames()
210 			frames = plugin->buf_frames;  in calc_dst_frames()
211 		if (plugin->dst_frames) {  in calc_dst_frames()
212 			frames = plugin->dst_frames(plugin, frames);  in calc_dst_frames()
216 		plugin = plugin_next;  in calc_dst_frames()
225 	struct snd_pcm_plugin *plugin, *plugin_prev;  in calc_src_frames()  local
227 	plugin = snd_pcm_plug_last(plug);  in calc_src_frames()
228 	while (plugin && frames > 0) {  in calc_src_frames()
229 		plugin_prev = plugin->prev;  in calc_src_frames()
230 		if (plugin->src_frames) {  in calc_src_frames()
231 			frames = plugin->src_frames(plugin, frames);  in calc_src_frames()
235 		if (check_size && plugin->buf_frames &&  in calc_src_frames()
236 		    frames > plugin->buf_frames)  in calc_src_frames()
237 			frames = plugin->buf_frames;  in calc_src_frames()
238 		plugin = plugin_prev;  in calc_src_frames()
375 	struct snd_pcm_plugin *plugin = NULL;  in snd_pcm_plug_format_plugins()  local
427 						 &plugin);  in snd_pcm_plug_format_plugins()
430 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
432 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
442 		err = snd_pcm_plugin_build_route(plug, &srcformat, &tmpformat, &plugin);  in snd_pcm_plug_format_plugins()
446 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
448 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
462 							  &plugin);  in snd_pcm_plug_format_plugins()
465 			err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
467 				snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
476 						&plugin);  in snd_pcm_plug_format_plugins()
480 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
482 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
496 							 &plugin);  in snd_pcm_plug_format_plugins()
502 							  &plugin);  in snd_pcm_plug_format_plugins()
509 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
511 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
521 		err = snd_pcm_plugin_build_route(plug, &srcformat, &tmpformat, &plugin);  in snd_pcm_plug_format_plugins()
525 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
527 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
539 						&plugin);  in snd_pcm_plug_format_plugins()
543 		err = snd_pcm_plugin_append(plugin);  in snd_pcm_plug_format_plugins()
545 			snd_pcm_plugin_free(plugin);  in snd_pcm_plug_format_plugins()
558 	struct snd_pcm_plugin *plugin;  in snd_pcm_plug_client_channels_buf()  local
567 		plugin = snd_pcm_plug_first(plug);  in snd_pcm_plug_client_channels_buf()
568 		format = &plugin->src_format;  in snd_pcm_plug_client_channels_buf()
570 		plugin = snd_pcm_plug_last(plug);  in snd_pcm_plug_client_channels_buf()
571 		format = &plugin->dst_format;  in snd_pcm_plug_client_channels_buf()
573 	v = plugin->buf_channels;  in snd_pcm_plug_client_channels_buf()
578 	if (snd_BUG_ON(plugin->access != SNDRV_PCM_ACCESS_RW_INTERLEAVED &&  in snd_pcm_plug_client_channels_buf()
594 	struct snd_pcm_plugin *plugin, *next;  in snd_pcm_plug_write_transfer()  local
599 	plugin = snd_pcm_plug_first(plug);  in snd_pcm_plug_write_transfer()
600 	while (plugin) {  in snd_pcm_plug_write_transfer()
603 		if ((next = plugin->next) != NULL) {  in snd_pcm_plug_write_transfer()
605 			if (plugin->dst_frames) {  in snd_pcm_plug_write_transfer()
606 				frames1 = plugin->dst_frames(plugin, frames);  in snd_pcm_plug_write_transfer()
615 				if (plugin->src_frames) {  in snd_pcm_plug_write_transfer()
616 					frames = plugin->src_frames(plugin, frames1);  in snd_pcm_plug_write_transfer()
623 		pdprintf("write plugin: %s, %li\n", plugin->name, frames);  in snd_pcm_plug_write_transfer()
624 		if ((frames = plugin->transfer(plugin, src_channels, dst_channels, frames)) < 0)  in snd_pcm_plug_write_transfer()
627 		plugin = next;  in snd_pcm_plug_write_transfer()
634 	struct snd_pcm_plugin *plugin, *next;  in snd_pcm_plug_read_transfer()  local
644 	plugin = snd_pcm_plug_first(plug);  in snd_pcm_plug_read_transfer()
645 	while (plugin && frames > 0) {  in snd_pcm_plug_read_transfer()
646 		if ((next = plugin->next) != NULL) {  in snd_pcm_plug_read_transfer()
647 			if ((err = plugin->client_channels(plugin, frames, &dst_channels)) < 0) {  in snd_pcm_plug_read_transfer()
654 		pdprintf("read plugin: %s, %li\n", plugin->name, frames);  in snd_pcm_plug_read_transfer()
655 		if ((frames = plugin->transfer(plugin, src_channels, dst_channels, frames)) < 0)  in snd_pcm_plug_read_transfer()
657 		plugin = next;  in snd_pcm_plug_read_transfer()