sound/x86/intel_hdmi_audio.c

165 /* Get the active PCM substream;
172 	struct snd_pcm_substream *substream;
176 	substream = intelhaddata->stream_info.substream;
177 	if (substream)
180 	return substream;
183 /* Unref the active PCM substream;
284 static int had_prog_status_reg(struct snd_pcm_substream *substream,
295 	switch (substream->runtime->rate) {
327 	switch (substream->runtime->format) {
351 static int had_init_audio_ctrl(struct snd_pcm_substream *substream,
358 	had_prog_status_reg(substream, intelhaddata);
365 	channels = substream->runtime->channels;
372 	if (substream->runtime->format == SNDRV_PCM_FORMAT_S16_LE)
375 	if (substream->runtime->format == SNDRV_PCM_FORMAT_S32_LE)
592 static void had_prog_dip(struct snd_pcm_substream *substream,
604 	channels = substream->runtime->channels;
611 		frame2.regval = (substream->runtime->channels - 1) | (ca << 24);
614 		frame2.regx.chnl_cnt = substream->runtime->channels - 1;
727  * @intelhaddata: substream private data
797  * @intelhaddata: substream private data
872 static void had_prog_bd(struct snd_pcm_substream *substream,
877 	u32 addr = substream->runtime->dma_addr + ofs;
880 	if (!substream->runtime->no_period_wakeup)
890 	intelhaddata->pcmbuf_filled %= substream->runtime->periods;
902 static void had_init_ringbuf(struct snd_pcm_substream *substream,
905 	struct snd_pcm_runtime *runtime = substream->runtime;
922 			had_prog_bd(substream, intelhaddata);
931 static void had_advance_ringbuf(struct snd_pcm_substream *substream,
934 	int num_periods = substream->runtime->periods;
937 	had_prog_bd(substream, intelhaddata);
947 static int had_process_ringbuf(struct snd_pcm_substream *substream,
975 		had_advance_ringbuf(substream, intelhaddata);
988 	struct snd_pcm_substream *substream;
990 	substream = had_substream_get(intelhaddata);
991 	if (!substream)
995 		snd_pcm_stop_xrun(substream);
1000 	if (had_process_ringbuf(substream, intelhaddata) < 0)
1001 		snd_pcm_stop_xrun(substream);
1003 		snd_pcm_period_elapsed(substream);
1034 static int had_pcm_sync_stop(struct snd_pcm_substream *substream)
1036 	struct snd_intelhad *intelhaddata = snd_pcm_substream_chip(substream);
1050 	struct snd_pcm_substream *substream;
1053 	substream = had_substream_get(intelhaddata);
1054 	if (substream) {
1055 		snd_pcm_stop_xrun(substream);
1063 static int had_pcm_open(struct snd_pcm_substream *substream)
1069 	intelhaddata = snd_pcm_substream_chip(substream);
1070 	runtime = substream->runtime;
1087 	retval = snd_pcm_hw_constraint_step(substream->runtime, 0,
1096 	/* expose PCM substream */
1098 	intelhaddata->stream_info.substream = substream;
1112 static int had_pcm_close(struct snd_pcm_substream *substream)
1116 	intelhaddata = snd_pcm_substream_chip(substream);
1120 	intelhaddata->stream_info.substream = NULL;
1137 static int had_pcm_hw_params(struct snd_pcm_substream *substream,
1143 	intelhaddata = snd_pcm_substream_chip(substream);
1153 static int had_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1158 	intelhaddata = snd_pcm_substream_chip(substream);
1186 static int had_pcm_prepare(struct snd_pcm_substream *substream)
1194 	intelhaddata = snd_pcm_substream_chip(substream);
1195 	runtime = substream->runtime;
1201 		(int)snd_pcm_lib_buffer_bytes(substream));
1208 	retval = had_prog_n(substream->runtime->rate, &n_param, intelhaddata);
1218 	had_prog_cts(substream->runtime->rate, disp_samp_freq, link_rate,
1221 	had_prog_dip(substream, intelhaddata);
1223 	retval = had_init_audio_ctrl(substream, intelhaddata);
1226 	had_init_ringbuf(substream, intelhaddata);
1242 static snd_pcm_uframes_t had_pcm_pointer(struct snd_pcm_substream *substream)
1247 	intelhaddata = snd_pcm_substream_chip(substream);
1252 	len = had_process_ringbuf(substream, intelhaddata);
1255 	len = bytes_to_frames(substream->runtime, len);
1257 	len %= substream->runtime->buffer_size;
1277 	struct snd_pcm_substream *substream;
1282 	substream = had_substream_get(intelhaddata);
1283 	if (!substream)
1292 	retval = had_prog_n(substream->runtime->rate, &n_param, intelhaddata);
1302 	had_prog_cts(substream->runtime->rate, disp_samp_freq, link_rate,
1316 	struct snd_pcm_substream *substream;
1337 	substream = had_substream_get(intelhaddata);
1338 	if (substream) {
1339 		snd_pcm_stop_xrun(substream);
1349 	struct snd_pcm_substream *substream;
1372 	substream = had_substream_get(intelhaddata);
1373 	if (substream) {
1374 		snd_pcm_stop_xrun(substream);