Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * tascam-pcm.c - a part of driver for TASCAM FireWire series
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright (c) 2015 Takashi Sakamoto
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include "tascam.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) static int pcm_init_hw_params(struct snd_tscm *tscm,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 			      struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) 	struct snd_pcm_runtime *runtime = substream->runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 	struct snd_pcm_hardware *hw = &runtime->hw;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 	struct amdtp_stream *stream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 	unsigned int pcm_channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 		runtime->hw.formats = SNDRV_PCM_FMTBIT_S32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 		stream = &tscm->tx_stream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 		pcm_channels = tscm->spec->pcm_capture_analog_channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 		runtime->hw.formats = SNDRV_PCM_FMTBIT_S32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 		stream = &tscm->rx_stream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 		pcm_channels = tscm->spec->pcm_playback_analog_channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 	if (tscm->spec->has_adat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 		pcm_channels += 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	if (tscm->spec->has_spdif)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 		pcm_channels += 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	runtime->hw.channels_min = runtime->hw.channels_max = pcm_channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	hw->rates = SNDRV_PCM_RATE_44100 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 		    SNDRV_PCM_RATE_48000 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 		    SNDRV_PCM_RATE_88200 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 		    SNDRV_PCM_RATE_96000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	snd_pcm_limit_hw_rates(runtime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	return amdtp_tscm_add_pcm_hw_constraints(stream, runtime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) static int pcm_open(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	struct snd_tscm *tscm = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	struct amdtp_domain *d = &tscm->domain;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	enum snd_tscm_clock clock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	err = snd_tscm_stream_lock_try(tscm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	err = pcm_init_hw_params(tscm, substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 		goto err_locked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	err = snd_tscm_stream_get_clock(tscm, &clock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 		goto err_locked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	mutex_lock(&tscm->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	// When source of clock is not internal or any stream is reserved for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	// transmission of PCM frames, the available sampling rate is limited
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	// at current one.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	if (clock != SND_TSCM_CLOCK_INTERNAL || tscm->substreams_counter > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 		unsigned int frames_per_period = d->events_per_period;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 		unsigned int frames_per_buffer = d->events_per_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 		unsigned int rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 		err = snd_tscm_stream_get_rate(tscm, &rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 		if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 			mutex_unlock(&tscm->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 			goto err_locked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 		substream->runtime->hw.rate_min = rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 		substream->runtime->hw.rate_max = rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 		err = snd_pcm_hw_constraint_minmax(substream->runtime,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 					SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 					frames_per_period, frames_per_period);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 		if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 			mutex_unlock(&tscm->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 			goto err_locked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 		err = snd_pcm_hw_constraint_minmax(substream->runtime,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 					SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 					frames_per_buffer, frames_per_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 		if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 			mutex_unlock(&tscm->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 			goto err_locked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	mutex_unlock(&tscm->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	snd_pcm_set_sync(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) err_locked:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	snd_tscm_stream_lock_release(tscm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) static int pcm_close(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	struct snd_tscm *tscm = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	snd_tscm_stream_lock_release(tscm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) static int pcm_hw_params(struct snd_pcm_substream *substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 			 struct snd_pcm_hw_params *hw_params)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	struct snd_tscm *tscm = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 		unsigned int rate = params_rate(hw_params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 		unsigned int frames_per_period = params_period_size(hw_params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 		unsigned int frames_per_buffer = params_buffer_size(hw_params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 		mutex_lock(&tscm->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 		err = snd_tscm_stream_reserve_duplex(tscm, rate,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 					frames_per_period, frames_per_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 		if (err >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 			++tscm->substreams_counter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 		mutex_unlock(&tscm->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) static int pcm_hw_free(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	struct snd_tscm *tscm = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	mutex_lock(&tscm->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 		--tscm->substreams_counter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	snd_tscm_stream_stop_duplex(tscm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	mutex_unlock(&tscm->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) static int pcm_capture_prepare(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	struct snd_tscm *tscm = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	struct snd_pcm_runtime *runtime = substream->runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	mutex_lock(&tscm->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	err = snd_tscm_stream_start_duplex(tscm, runtime->rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	if (err >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 		amdtp_stream_pcm_prepare(&tscm->tx_stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	mutex_unlock(&tscm->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) static int pcm_playback_prepare(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	struct snd_tscm *tscm = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	struct snd_pcm_runtime *runtime = substream->runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	mutex_lock(&tscm->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	err = snd_tscm_stream_start_duplex(tscm, runtime->rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	if (err >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 		amdtp_stream_pcm_prepare(&tscm->rx_stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	mutex_unlock(&tscm->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) static int pcm_capture_trigger(struct snd_pcm_substream *substream, int cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	struct snd_tscm *tscm = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	switch (cmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	case SNDRV_PCM_TRIGGER_START:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 		amdtp_stream_pcm_trigger(&tscm->tx_stream, substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	case SNDRV_PCM_TRIGGER_STOP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 		amdtp_stream_pcm_trigger(&tscm->tx_stream, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) static int pcm_playback_trigger(struct snd_pcm_substream *substream, int cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	struct snd_tscm *tscm = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	switch (cmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	case SNDRV_PCM_TRIGGER_START:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 		amdtp_stream_pcm_trigger(&tscm->rx_stream, substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 	case SNDRV_PCM_TRIGGER_STOP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 		amdtp_stream_pcm_trigger(&tscm->rx_stream, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) static snd_pcm_uframes_t pcm_capture_pointer(struct snd_pcm_substream *sbstrm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	struct snd_tscm *tscm = sbstrm->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	return amdtp_domain_stream_pcm_pointer(&tscm->domain, &tscm->tx_stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) static snd_pcm_uframes_t pcm_playback_pointer(struct snd_pcm_substream *sbstrm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	struct snd_tscm *tscm = sbstrm->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	return amdtp_domain_stream_pcm_pointer(&tscm->domain, &tscm->rx_stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) static int pcm_capture_ack(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	struct snd_tscm *tscm = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	return amdtp_domain_stream_pcm_ack(&tscm->domain, &tscm->tx_stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) static int pcm_playback_ack(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	struct snd_tscm *tscm = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	return amdtp_domain_stream_pcm_ack(&tscm->domain, &tscm->rx_stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) int snd_tscm_create_pcm_devices(struct snd_tscm *tscm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	static const struct snd_pcm_ops capture_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 		.open		= pcm_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 		.close		= pcm_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 		.hw_params	= pcm_hw_params,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 		.hw_free	= pcm_hw_free,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 		.prepare	= pcm_capture_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 		.trigger	= pcm_capture_trigger,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 		.pointer	= pcm_capture_pointer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 		.ack		= pcm_capture_ack,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 	static const struct snd_pcm_ops playback_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 		.open		= pcm_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 		.close		= pcm_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 		.hw_params	= pcm_hw_params,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 		.hw_free	= pcm_hw_free,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 		.prepare	= pcm_playback_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 		.trigger	= pcm_playback_trigger,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 		.pointer	= pcm_playback_pointer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 		.ack		= pcm_playback_ack,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 	struct snd_pcm *pcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 	err = snd_pcm_new(tscm->card, tscm->card->driver, 0, 1, 1, &pcm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	pcm->private_data = tscm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 	snprintf(pcm->name, sizeof(pcm->name),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 		 "%s PCM", tscm->card->shortname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &capture_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC, NULL, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) }