108 lines
2.9 KiB
C
108 lines
2.9 KiB
C
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/*
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* Copyright 2019 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "audio_codec.h"
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#include "console.h"
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#include "host_command.h"
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#define CPRINTS(format, args...) cprints(CC_AUDIO_CODEC, format, ## args)
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static enum ec_status dmic_get_max_gain(struct host_cmd_handler_args *args)
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{
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struct ec_response_ec_codec_dmic_get_max_gain *r = args->response;
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if (audio_codec_dmic_get_max_gain(&r->max_gain) != EC_SUCCESS)
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return EC_RES_ERROR;
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args->response_size = sizeof(*r);
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return EC_RES_SUCCESS;
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}
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static enum ec_status dmic_set_gain_idx(struct host_cmd_handler_args *args)
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{
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const struct ec_param_ec_codec_dmic *p = args->params;
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if (audio_codec_dmic_set_gain_idx(
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p->set_gain_idx_param.channel,
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p->set_gain_idx_param.gain) != EC_SUCCESS)
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return EC_RES_ERROR;
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return EC_RES_SUCCESS;
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}
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static enum ec_status dmic_get_gain_idx(struct host_cmd_handler_args *args)
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{
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const struct ec_param_ec_codec_dmic *p = args->params;
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struct ec_response_ec_codec_dmic_get_gain_idx *r = args->response;
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if (audio_codec_dmic_get_gain_idx(
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p->get_gain_idx_param.channel, &r->gain) != EC_SUCCESS)
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return EC_RES_ERROR;
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args->response_size = sizeof(*r);
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return EC_RES_SUCCESS;
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}
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static int (*sub_cmds[])(struct host_cmd_handler_args *) = {
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[EC_CODEC_DMIC_GET_MAX_GAIN] = dmic_get_max_gain,
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[EC_CODEC_DMIC_SET_GAIN_IDX] = dmic_set_gain_idx,
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[EC_CODEC_DMIC_GET_GAIN_IDX] = dmic_get_gain_idx,
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};
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#ifdef DEBUG_AUDIO_CODEC
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static char *strcmd[] = {
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[EC_CODEC_DMIC_GET_MAX_GAIN] = "EC_CODEC_DMIC_GET_MAX_GAIN",
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[EC_CODEC_DMIC_SET_GAIN_IDX] = "EC_CODEC_DMIC_SET_GAIN_IDX",
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[EC_CODEC_DMIC_GET_GAIN_IDX] = "EC_CODEC_DMIC_GET_GAIN_IDX",
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};
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BUILD_ASSERT(ARRAY_SIZE(sub_cmds) == ARRAY_SIZE(strcmd));
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#endif
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static enum ec_status dmic_host_command(struct host_cmd_handler_args *args)
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{
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const struct ec_param_ec_codec_dmic *p = args->params;
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#ifdef DEBUG_AUDIO_CODEC
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CPRINTS("DMIC subcommand: %s", strcmd[p->cmd]);
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#endif
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if (p->cmd < EC_CODEC_DMIC_SUBCMD_COUNT)
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return sub_cmds[p->cmd](args);
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return EC_RES_INVALID_PARAM;
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}
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DECLARE_HOST_COMMAND(EC_CMD_EC_CODEC_DMIC, dmic_host_command, EC_VER_MASK(0));
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#ifdef CONFIG_AUDIO_CODEC_DMIC_SOFTWARE_GAIN
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static uint8_t channel_gains[EC_CODEC_DMIC_CHANNEL_COUNT];
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int audio_codec_dmic_get_max_gain(uint8_t *gain)
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{
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*gain = CONFIG_AUDIO_CODEC_DMIC_MAX_SOFTWARE_GAIN;
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return EC_SUCCESS;
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}
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int audio_codec_dmic_set_gain_idx(uint8_t channel, uint8_t gain)
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{
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if (channel >= ARRAY_SIZE(channel_gains))
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return EC_ERROR_INVAL;
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if (gain > CONFIG_AUDIO_CODEC_DMIC_MAX_SOFTWARE_GAIN)
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return EC_ERROR_INVAL;
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channel_gains[channel] = gain;
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return EC_SUCCESS;
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}
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int audio_codec_dmic_get_gain_idx(uint8_t channel, uint8_t *gain)
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{
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if (channel >= ARRAY_SIZE(channel_gains))
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return EC_ERROR_INVAL;
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*gain = channel_gains[channel];
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return EC_SUCCESS;
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}
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#endif
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