Lines Matching refs:pair
206 * fsl_asrc_request_pair - Request ASRC pair
208 * @pair: pointer to pair
210 * It assigns pair by the order of A->C->B because allocation of pair B,
211 * within range [ANCA, ANCA+ANCB-1], depends on the channels of pair A
212 * while pair A and pair C are comparatively independent.
214 static int fsl_asrc_request_pair(int channels, struct fsl_asrc_pair *pair)
217 struct fsl_asrc *asrc = pair->asrc;
225 if (asrc->pair[i] != NULL)
242 asrc->pair[index] = pair;
243 pair->channels = channels;
244 pair->index = index;
253 * fsl_asrc_release_pair - Release ASRC pair
254 * @pair: pair to release
258 static void fsl_asrc_release_pair(struct fsl_asrc_pair *pair)
260 struct fsl_asrc *asrc = pair->asrc;
261 enum asrc_pair_index index = pair->index;
264 /* Make sure the pair is disabled */
270 asrc->channel_avail += pair->channels;
271 asrc->pair[index] = NULL;
272 pair->error = 0;
279 * @pair: pointer to pair
283 static void fsl_asrc_set_watermarks(struct fsl_asrc_pair *pair, u32 in, u32 out)
285 struct fsl_asrc *asrc = pair->asrc;
286 enum asrc_pair_index index = pair->index;
299 * @pair: pointer to pair
304 static u32 fsl_asrc_cal_asrck_divisor(struct fsl_asrc_pair *pair, u32 div)
317 * @pair: pointer to pair
323 static int fsl_asrc_set_ideal_ratio(struct fsl_asrc_pair *pair,
326 struct fsl_asrc *asrc = pair->asrc;
327 enum asrc_pair_index index = pair->index;
362 * fsl_asrc_config_pair - Configure the assigned ASRC pair
363 * @pair: pointer to pair
377 static int fsl_asrc_config_pair(struct fsl_asrc_pair *pair, bool use_ideal_rate)
379 struct fsl_asrc_pair_priv *pair_priv = pair->private;
381 struct fsl_asrc *asrc = pair->asrc;
383 enum asrc_pair_index index = pair->index;
395 pair_err("invalid pair config\n");
511 /* Update channels for current pair */
529 indiv = fsl_asrc_cal_asrck_divisor(pair, div[IN]);
530 outdiv = fsl_asrc_cal_asrck_divisor(pair, div[OUT]);
549 fsl_asrc_set_watermarks(pair, ASRC_INPUTFIFO_THRESHOLD,
573 return fsl_asrc_set_ideal_ratio(pair, inrate, outrate);
577 * fsl_asrc_start_pair - Start the assigned ASRC pair
578 * @pair: pointer to pair
580 * It enables the assigned pair and makes it stopped at the stall level.
582 static void fsl_asrc_start_pair(struct fsl_asrc_pair *pair)
584 struct fsl_asrc *asrc = pair->asrc;
585 enum asrc_pair_index index = pair->index;
588 /* Enable the current pair */
605 for (i = 0; i < pair->channels * 4; i++)
613 * fsl_asrc_stop_pair - Stop the assigned ASRC pair
614 * @pair: pointer to pair
616 static void fsl_asrc_stop_pair(struct fsl_asrc_pair *pair)
618 struct fsl_asrc *asrc = pair->asrc;
619 enum asrc_pair_index index = pair->index;
621 /* Stop the current pair */
627 * fsl_asrc_get_dma_channel- Get DMA channel according to the pair and direction.
628 * @pair: pointer to pair
631 static struct dma_chan *fsl_asrc_get_dma_channel(struct fsl_asrc_pair *pair,
634 struct fsl_asrc *asrc = pair->asrc;
635 enum asrc_pair_index index = pair->index;
661 struct fsl_asrc_pair *pair,
665 struct fsl_asrc_pair_priv *pair_priv = pair->private;
704 struct fsl_asrc_pair *pair = runtime->private_data;
705 struct fsl_asrc_pair_priv *pair_priv = pair->private;
711 ret = fsl_asrc_request_pair(channels, pair);
713 dev_err(dai->dev, "fail to request asrc pair\n");
719 config.pair = pair->index;
734 fsl_asrc_select_clk(asrc_priv, pair,
738 ret = fsl_asrc_config_pair(pair, false);
740 dev_err(dai->dev, "fail to config asrc pair\n");
751 struct fsl_asrc_pair *pair = runtime->private_data;
753 if (pair)
754 fsl_asrc_release_pair(pair);
763 struct fsl_asrc_pair *pair = runtime->private_data;
769 fsl_asrc_start_pair(pair);
774 fsl_asrc_stop_pair(pair);
979 /* Halt ASRC internal FP when input FIFO needs data for pair A, B, C */
1029 if (!asrc->pair[index])
1033 asrc->pair[index]->error |= ASRC_TASK_Q_OVERLOAD;
1038 asrc->pair[index]->error |= ASRC_OUTPUT_TASK_OVERLOAD;
1043 asrc->pair[index]->error |= ASRC_INPUT_TASK_OVERLOAD;
1048 asrc->pair[index]->error |= ASRC_OUTPUT_BUFFER_OVERFLOW;
1053 asrc->pair[index]->error |= ASRC_INPUT_BUFFER_UNDERRUN;