96 lines
3.5 KiB
C
96 lines
3.5 KiB
C
/****************************************************************************
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* boards/arm/cxd56xx/drivers/audio/cxd56_audio_digital.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 <arch/chip/audio.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_bca_reg.h"
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#include "cxd56_audio_digital.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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void cxd56_audio_digital_poweron(void)
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{
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#if defined(CONFIG_CXD56_I2S0) || defined(CONFIG_CXD56_I2S1)
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cxd56_audio_clkmode_t clk_mode = cxd56_audio_config_get_clkmode();
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/* Clear interrupt status of bck_err. */
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cxd56_audio_bca_reg_clear_bck_err_int();
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/* PowerON i2s. */
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cxd56_audio_ac_reg_poweron_i2s(clk_mode);
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#endif /* defined(CONFIG_CXD56_I2S0) || defined(CONFIG_CXD56_I2S1) */
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}
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void cxd56_audio_digital_enable(void)
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{
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#if defined(CONFIG_CXD56_I2S0) || defined(CONFIG_CXD56_I2S1)
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#ifdef CONFIG_CXD56_I2S0
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/* Enable I2S data input and output of SRC1 */
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cxd56_audio_ac_reg_enable_i2s_src1();
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#endif /* CONFIG_CXD56_I2S0 */
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#ifdef CONFIG_CXD56_I2S1
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/* Enable I2S data input and output of SRC2 */
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cxd56_audio_ac_reg_enable_i2s_src2();
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#endif /* CONFIG_CXD56_I2S1 */
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if ((CXD56_AUDIO_CFG_I2S1_MODE == CXD56_AUDIO_CFG_I2S_MODE_MASTER) ||
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(CXD56_AUDIO_CFG_I2S2_MODE == CXD56_AUDIO_CFG_I2S_MODE_MASTER))
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{
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/* Enable BCK, LRCK output. */
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cxd56_audio_ac_reg_enable_i2s_bcklrckout();
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}
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else
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{
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cxd56_audio_ac_reg_disable_i2s_bcklrckout();
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}
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#endif /* defined(CONFIG_CXD56_I2S0) || defined(CONFIG_CXD56_I2S1) */
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}
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