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)  * oxfw_pcm.c - a part of driver for OXFW970/971 based devices
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
^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 "oxfw.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) static int hw_rule_rate(struct snd_pcm_hw_params *params,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 			struct snd_pcm_hw_rule *rule)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) 	u8 **formats = rule->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 	struct snd_interval *r =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 		hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 	const struct snd_interval *c =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 		hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_CHANNELS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 	struct snd_interval t = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 		.min = UINT_MAX, .max = 0, .integer = 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 	struct snd_oxfw_stream_formation formation;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 	int i, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 	for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 		if (formats[i] == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 		err = snd_oxfw_stream_parse_format(formats[i], &formation);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 		if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 		if (!snd_interval_test(c, formation.pcm))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 		t.min = min(t.min, formation.rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 		t.max = max(t.max, formation.rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	return snd_interval_refine(r, &t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) static int hw_rule_channels(struct snd_pcm_hw_params *params,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 			    struct snd_pcm_hw_rule *rule)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	u8 **formats = rule->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	struct snd_interval *c =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 		hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	const struct snd_interval *r =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 		hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_RATE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	struct snd_oxfw_stream_formation formation;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	int i, j, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	unsigned int count, list[SND_OXFW_STREAM_FORMAT_ENTRIES] = {0};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 		if (formats[i] == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 		err = snd_oxfw_stream_parse_format(formats[i], &formation);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 		if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 		if (!snd_interval_test(r, formation.rate))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 		if (list[count] == formation.pcm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 		for (j = 0; j < ARRAY_SIZE(list); j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 			if (list[j] == formation.pcm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 		if (j == ARRAY_SIZE(list)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 			list[count] = formation.pcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 			if (++count == ARRAY_SIZE(list))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	return snd_interval_list(c, count, list, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) static void limit_channels_and_rates(struct snd_pcm_hardware *hw, u8 **formats)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	struct snd_oxfw_stream_formation formation;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	int i, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	hw->channels_min = UINT_MAX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	hw->channels_max = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	hw->rate_min = UINT_MAX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	hw->rate_max = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	hw->rates = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 		if (formats[i] == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 		err = snd_oxfw_stream_parse_format(formats[i], &formation);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 		if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 		hw->channels_min = min(hw->channels_min, formation.pcm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 		hw->channels_max = max(hw->channels_max, formation.pcm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 		hw->rate_min = min(hw->rate_min, formation.rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 		hw->rate_max = max(hw->rate_max, formation.rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 		hw->rates |= snd_pcm_rate_to_rate_bit(formation.rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) static int init_hw_params(struct snd_oxfw *oxfw,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 			  struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	struct snd_pcm_runtime *runtime = substream->runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	u8 **formats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	struct amdtp_stream *stream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 		runtime->hw.formats = AM824_IN_PCM_FORMAT_BITS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 		stream = &oxfw->tx_stream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 		formats = oxfw->tx_stream_formats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 		runtime->hw.formats = AM824_OUT_PCM_FORMAT_BITS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 		stream = &oxfw->rx_stream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 		formats = oxfw->rx_stream_formats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	limit_channels_and_rates(&runtime->hw, formats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 				  hw_rule_channels, formats,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 				  SNDRV_PCM_HW_PARAM_RATE, -1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 		goto end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 				  hw_rule_rate, formats,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 				  SNDRV_PCM_HW_PARAM_CHANNELS, -1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 		goto end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	err = amdtp_am824_add_pcm_hw_constraints(stream, runtime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) end:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) static int limit_to_current_params(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	struct snd_oxfw *oxfw = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	struct snd_oxfw_stream_formation formation;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	enum avc_general_plug_dir dir;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 		dir = AVC_GENERAL_PLUG_DIR_OUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 		dir = AVC_GENERAL_PLUG_DIR_IN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	err = snd_oxfw_stream_get_current_formation(oxfw, dir, &formation);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 		goto end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	substream->runtime->hw.channels_min = formation.pcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	substream->runtime->hw.channels_max = formation.pcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	substream->runtime->hw.rate_min = formation.rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	substream->runtime->hw.rate_max = formation.rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) end:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) static int pcm_open(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	struct snd_oxfw *oxfw = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	struct amdtp_domain *d = &oxfw->domain;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	err = snd_oxfw_stream_lock_try(oxfw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	err = init_hw_params(oxfw, substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 		goto err_locked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	mutex_lock(&oxfw->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	// When source of clock is not internal or any stream is reserved for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	// transmission of PCM frames, the available sampling rate is limited
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	// at current one.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	if (oxfw->substreams_count > 0 && d->events_per_period > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 		unsigned int frames_per_period = d->events_per_period;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 		unsigned int frames_per_buffer = d->events_per_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 		err = limit_to_current_params(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 		if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 			mutex_unlock(&oxfw->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 			goto err_locked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 		if (frames_per_period > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 			err = snd_pcm_hw_constraint_minmax(substream->runtime,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 					SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 					frames_per_period, frames_per_period);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 			if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 				mutex_unlock(&oxfw->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 				goto err_locked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 			err = snd_pcm_hw_constraint_minmax(substream->runtime,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 					SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 					frames_per_buffer, frames_per_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 			if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 				mutex_unlock(&oxfw->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 				goto err_locked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	mutex_unlock(&oxfw->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	snd_pcm_set_sync(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) err_locked:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	snd_oxfw_stream_lock_release(oxfw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) static int pcm_close(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	struct snd_oxfw *oxfw = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	snd_oxfw_stream_lock_release(oxfw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) static int pcm_capture_hw_params(struct snd_pcm_substream *substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 				 struct snd_pcm_hw_params *hw_params)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	struct snd_oxfw *oxfw = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 		unsigned int rate = params_rate(hw_params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 		unsigned int channels = params_channels(hw_params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 		unsigned int frames_per_period = params_period_size(hw_params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 		unsigned int frames_per_buffer = params_buffer_size(hw_params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 		mutex_lock(&oxfw->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 		err = snd_oxfw_stream_reserve_duplex(oxfw, &oxfw->tx_stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 					rate, channels, frames_per_period,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 					frames_per_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 		if (err >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 			++oxfw->substreams_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 		mutex_unlock(&oxfw->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) static int pcm_playback_hw_params(struct snd_pcm_substream *substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 				  struct snd_pcm_hw_params *hw_params)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	struct snd_oxfw *oxfw = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 	if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 		unsigned int rate = params_rate(hw_params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 		unsigned int channels = params_channels(hw_params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 		unsigned int frames_per_period = params_period_size(hw_params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 		unsigned int frames_per_buffer = params_buffer_size(hw_params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 		mutex_lock(&oxfw->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 		err = snd_oxfw_stream_reserve_duplex(oxfw, &oxfw->rx_stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 					rate, channels, frames_per_period,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 					frames_per_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 		if (err >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 			++oxfw->substreams_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 		mutex_unlock(&oxfw->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) static int pcm_capture_hw_free(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 	struct snd_oxfw *oxfw = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	mutex_lock(&oxfw->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 	if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 		--oxfw->substreams_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	snd_oxfw_stream_stop_duplex(oxfw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	mutex_unlock(&oxfw->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) static int pcm_playback_hw_free(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 	struct snd_oxfw *oxfw = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 	mutex_lock(&oxfw->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 		--oxfw->substreams_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 	snd_oxfw_stream_stop_duplex(oxfw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 	mutex_unlock(&oxfw->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) static int pcm_capture_prepare(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 	struct snd_oxfw *oxfw = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 	mutex_lock(&oxfw->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 	err = snd_oxfw_stream_start_duplex(oxfw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 	mutex_unlock(&oxfw->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 		goto end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 	amdtp_stream_pcm_prepare(&oxfw->tx_stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) end:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) static int pcm_playback_prepare(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 	struct snd_oxfw *oxfw = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 	mutex_lock(&oxfw->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 	err = snd_oxfw_stream_start_duplex(oxfw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 	mutex_unlock(&oxfw->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 		goto end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 	amdtp_stream_pcm_prepare(&oxfw->rx_stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) end:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) static int pcm_capture_trigger(struct snd_pcm_substream *substream, int cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 	struct snd_oxfw *oxfw = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 	struct snd_pcm_substream *pcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 	switch (cmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 	case SNDRV_PCM_TRIGGER_START:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 		pcm = substream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 	case SNDRV_PCM_TRIGGER_STOP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 		pcm = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 	amdtp_stream_pcm_trigger(&oxfw->tx_stream, pcm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) static int pcm_playback_trigger(struct snd_pcm_substream *substream, int cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 	struct snd_oxfw *oxfw = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 	struct snd_pcm_substream *pcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 	switch (cmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) 	case SNDRV_PCM_TRIGGER_START:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 		pcm = substream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 	case SNDRV_PCM_TRIGGER_STOP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 		pcm = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 	amdtp_stream_pcm_trigger(&oxfw->rx_stream, pcm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) static snd_pcm_uframes_t pcm_capture_pointer(struct snd_pcm_substream *sbstm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) 	struct snd_oxfw *oxfw = sbstm->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) 	return amdtp_domain_stream_pcm_pointer(&oxfw->domain, &oxfw->tx_stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) static snd_pcm_uframes_t pcm_playback_pointer(struct snd_pcm_substream *sbstm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 	struct snd_oxfw *oxfw = sbstm->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) 	return amdtp_domain_stream_pcm_pointer(&oxfw->domain, &oxfw->rx_stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) static int pcm_capture_ack(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) 	struct snd_oxfw *oxfw = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) 	return amdtp_domain_stream_pcm_ack(&oxfw->domain, &oxfw->tx_stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) static int pcm_playback_ack(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) 	struct snd_oxfw *oxfw = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) 	return amdtp_domain_stream_pcm_ack(&oxfw->domain, &oxfw->rx_stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) int snd_oxfw_create_pcm(struct snd_oxfw *oxfw)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) 	static const struct snd_pcm_ops capture_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) 		.open      = pcm_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) 		.close     = pcm_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) 		.hw_params = pcm_capture_hw_params,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) 		.hw_free   = pcm_capture_hw_free,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) 		.prepare   = pcm_capture_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) 		.trigger   = pcm_capture_trigger,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) 		.pointer   = pcm_capture_pointer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) 		.ack       = pcm_capture_ack,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) 	static const struct snd_pcm_ops playback_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) 		.open      = pcm_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) 		.close     = pcm_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) 		.hw_params = pcm_playback_hw_params,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) 		.hw_free   = pcm_playback_hw_free,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) 		.prepare   = pcm_playback_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) 		.trigger   = pcm_playback_trigger,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) 		.pointer   = pcm_playback_pointer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) 		.ack       = pcm_playback_ack,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) 	struct snd_pcm *pcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) 	unsigned int cap = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) 	if (oxfw->has_output)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) 		cap = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) 	err = snd_pcm_new(oxfw->card, oxfw->card->driver, 0, 1, cap, &pcm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) 	pcm->private_data = oxfw;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) 	strcpy(pcm->name, oxfw->card->shortname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) 	if (cap > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &capture_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) 	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC, NULL, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) }