141 typedef void (*mulaw_f)(struct snd_pcm_plugin *plugin,
168 static void mulaw_decode(struct snd_pcm_plugin *plugin,  in mulaw_decode()  argument
173 	struct mulaw_priv *data = (struct mulaw_priv *)plugin->extra_data;  in mulaw_decode()
175 	int nchannels = plugin->src_format.channels;  in mulaw_decode()
183 				snd_pcm_area_silence(&dst_channels[channel].area, 0, frames, plugin->dst_format.format);  in mulaw_decode()
214 static void mulaw_encode(struct snd_pcm_plugin *plugin,  in mulaw_encode()  argument
219 	struct mulaw_priv *data = (struct mulaw_priv *)plugin->extra_data;  in mulaw_encode()
221 	int nchannels = plugin->src_format.channels;  in mulaw_encode()
229 				snd_pcm_area_silence(&dst_channels[channel].area, 0, frames, plugin->dst_format.format);  in mulaw_encode()
248 static snd_pcm_sframes_t mulaw_transfer(struct snd_pcm_plugin *plugin,  in mulaw_transfer()  argument
255 	if (snd_BUG_ON(!plugin || !src_channels || !dst_channels))  in mulaw_transfer()
262 		for (channel = 0; channel < plugin->src_format.channels; channel++) {  in mulaw_transfer()
274 	data = (struct mulaw_priv *)plugin->extra_data;  in mulaw_transfer()
275 	data->func(plugin, src_channels, dst_channels, frames);  in mulaw_transfer()
307 	struct snd_pcm_plugin *plugin;  in snd_pcm_plugin_build_mulaw()  local
337 				   sizeof(struct mulaw_priv), &plugin);  in snd_pcm_plugin_build_mulaw()
340 	data = (struct mulaw_priv *)plugin->extra_data;  in snd_pcm_plugin_build_mulaw()
343 	plugin->transfer = mulaw_transfer;  in snd_pcm_plugin_build_mulaw()
344 	*r_plugin = plugin;  in snd_pcm_plugin_build_mulaw()