284 lines
7.4 KiB
C
284 lines
7.4 KiB
C
/****************************************************************************
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* boards/arm/cxd56xx/drivers/audio/cxd56_audio_volume.c
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*
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* Copyright 2018 Sony Semiconductor Solutions Corporation
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name of Sony Semiconductor Solutions Corporation nor
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* the names of its contributors may be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/arch.h>
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#include <nuttx/signal.h>
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#include "cxd56_audio_config.h"
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#include "cxd56_audio_ac_reg.h"
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#include "cxd56_audio_analog.h"
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#include "cxd56_audio_volume.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Number of volume device. */
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#define VOLUME_NUM 3
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/* Maximum value. */
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#define VOLUME_MAX 120
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/* Minimum value. */
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#define VOLUME_MIN -1020
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/* Mute volume. */
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#define VOLUME_MUTE -1025
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#define MUTE_BIT_API 0x01
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#define MUTE_BIT_FADE 0x02
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#define MUTE_VOL_REG 0x33
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#define VOL_WAIT_TIME 20
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#define VOL_TO_REG(vol) (((vol) / 5) & 0xff)
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#define VOL_MUTE_TIME(vol, n_cycle) \
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(((VOL_TO_REG(vol) - MUTE_VOL_REG) & 0xff) * (n_cycle + 1) * 4 / 48 * 1000)
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/****************************************************************************
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* Private Type
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****************************************************************************/
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struct set_vol_prm_s
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{
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int16_t hold_vol;
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uint8_t mute_bit;
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};
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static struct set_vol_prm_s g_volparam[VOLUME_NUM] =
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{
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{VOLUME_MUTE, MUTE_BIT_API},
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{VOLUME_MUTE, MUTE_BIT_API},
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{VOLUME_MUTE, MUTE_BIT_API}
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};
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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static CXD56_AUDIO_ECODE set_mute(cxd56_audio_volid_t id,
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bool wait,
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uint8_t type)
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{
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uint32_t waittime = 0;
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waittime = VOL_MUTE_TIME(g_volparam[id].hold_vol, 1);
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if (g_volparam[id].mute_bit == 0)
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{
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switch (id)
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{
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case CXD56_AUDIO_VOLID_MIXER_IN1:
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cxd56_audio_ac_reg_set_vol_sdin1(MUTE_VOL_REG);
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break;
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case CXD56_AUDIO_VOLID_MIXER_IN2:
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cxd56_audio_ac_reg_set_vol_sdin2(MUTE_VOL_REG);
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break;
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default:
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cxd56_audio_ac_reg_set_vol_dac(MUTE_VOL_REG);
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break;
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}
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}
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if (wait)
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{
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nxsig_usleep(waittime);
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}
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g_volparam[id].mute_bit |= type;
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if (g_volparam[CXD56_AUDIO_VOLID_MIXER_OUT].mute_bit != 0)
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{
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CXD56_AUDIO_ECODE ret = cxd56_audio_analog_disable_output();
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if (ret != CXD56_AUDIO_ECODE_OK)
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{
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return ret;
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}
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}
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return CXD56_AUDIO_ECODE_OK;
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}
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static CXD56_AUDIO_ECODE set_unmute(cxd56_audio_volid_t id,
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bool wait,
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uint8_t type)
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{
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uint32_t waittime = 0;
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g_volparam[id].mute_bit &= ~type;
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if (g_volparam[CXD56_AUDIO_VOLID_MIXER_OUT].mute_bit == 0)
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{
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CXD56_AUDIO_ECODE ret = cxd56_audio_analog_enable_output();
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if (ret != CXD56_AUDIO_ECODE_OK)
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{
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return ret;
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}
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}
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if (g_volparam[id].mute_bit == 0)
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{
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if (type == MUTE_BIT_API)
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{
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waittime = VOL_WAIT_TIME;
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}
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else
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{
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/* fade */
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waittime = VOL_MUTE_TIME(g_volparam[id].hold_vol, 1);
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}
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uint32_t vol = VOL_TO_REG(g_volparam[id].hold_vol);
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switch (id)
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{
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case CXD56_AUDIO_VOLID_MIXER_IN1:
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cxd56_audio_ac_reg_set_vol_sdin1(vol);
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break;
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case CXD56_AUDIO_VOLID_MIXER_IN2:
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cxd56_audio_ac_reg_set_vol_sdin2(vol);
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break;
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default:
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cxd56_audio_ac_reg_set_vol_dac(vol);
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break;
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}
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if (wait)
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{
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nxsig_usleep(waittime);
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}
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}
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return CXD56_AUDIO_ECODE_OK;
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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CXD56_AUDIO_ECODE cxd56_audio_volume_set(cxd56_audio_volid_t id,
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int16_t vol)
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{
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if (id >= VOLUME_NUM)
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{
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return CXD56_AUDIO_ECODE_VOL_ID;
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}
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if (VOLUME_MIN > vol)
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{
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if (VOLUME_MUTE != vol)
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{
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return CXD56_AUDIO_ECODE_VOL_MIN;
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}
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}
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if (VOLUME_MAX < vol)
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{
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return CXD56_AUDIO_ECODE_VOL_MAX;
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}
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g_volparam[id].hold_vol = vol;
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set_unmute(id, true, MUTE_BIT_API);
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return CXD56_AUDIO_ECODE_OK;
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}
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CXD56_AUDIO_ECODE cxd56_audio_volume_mute(cxd56_audio_volid_t id)
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{
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if (id >= VOLUME_NUM)
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{
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return CXD56_AUDIO_ECODE_VOL_ID;
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}
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set_mute(id, true, MUTE_BIT_API);
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return CXD56_AUDIO_ECODE_OK;
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}
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CXD56_AUDIO_ECODE cxd56_audio_volume_unmute(cxd56_audio_volid_t id)
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{
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if (id >= VOLUME_NUM)
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{
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return CXD56_AUDIO_ECODE_VOL_ID;
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}
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set_unmute(id, true, MUTE_BIT_API);
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return CXD56_AUDIO_ECODE_OK;
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}
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CXD56_AUDIO_ECODE cxd56_audio_volume_mute_fade(cxd56_audio_volid_t id,
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bool wait)
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{
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if (id >= VOLUME_NUM)
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{
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return CXD56_AUDIO_ECODE_VOL_ID;
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}
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set_mute(id, wait, MUTE_BIT_FADE);
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return CXD56_AUDIO_ECODE_OK;
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}
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CXD56_AUDIO_ECODE cxd56_audio_volume_unmute_fade(cxd56_audio_volid_t id,
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bool wait)
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{
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if (id >= VOLUME_NUM)
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{
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return CXD56_AUDIO_ECODE_VOL_ID;
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}
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set_unmute(id, wait, MUTE_BIT_FADE);
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return CXD56_AUDIO_ECODE_OK;
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}
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