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Diff: Components/cs43l22/cs43l22.c
- Revision:
- 0:0002c86c2220
diff -r 000000000000 -r 0002c86c2220 Components/cs43l22/cs43l22.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Components/cs43l22/cs43l22.c Fri Dec 18 07:32:01 2015 +0000
@@ -0,0 +1,494 @@
+/**
+ ******************************************************************************
+ * @file cs43l22.c
+ * @author MCD Application Team
+ * @version V2.0.2
+ * @date 06-October-2015
+ * @brief This file provides the CS43L22 Audio Codec driver.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "cs43l22.h"
+
+/** @addtogroup BSP
+ * @{
+ */
+
+/** @addtogroup Components
+ * @{
+ */
+
+/** @addtogroup CS43L22
+ * @brief This file provides a set of functions needed to drive the
+ * CS43L22 audio codec.
+ * @{
+ */
+
+/** @defgroup CS43L22_Private_Types
+ * @{
+ */
+
+/**
+ * @}
+ */
+
+/** @defgroup CS43L22_Private_Defines
+ * @{
+ */
+#define VOLUME_CONVERT(Volume) (((Volume) > 100)? 100:((uint8_t)(((Volume) * 255) / 100)))
+/* Uncomment this line to enable verifying data sent to codec after each write
+ operation (for debug purpose) */
+#if !defined (VERIFY_WRITTENDATA)
+/* #define VERIFY_WRITTENDATA */
+#endif /* VERIFY_WRITTENDATA */
+/**
+ * @}
+ */
+
+/** @defgroup CS43L22_Private_Macros
+ * @{
+ */
+
+/**
+ * @}
+ */
+
+/** @defgroup CS43L22_Private_Variables
+ * @{
+ */
+
+/* Audio codec driver structure initialization */
+AUDIO_DrvTypeDef cs43l22_drv =
+{
+ cs43l22_Init,
+ cs43l22_DeInit,
+ cs43l22_ReadID,
+
+ cs43l22_Play,
+ cs43l22_Pause,
+ cs43l22_Resume,
+ cs43l22_Stop,
+
+ cs43l22_SetFrequency,
+ cs43l22_SetVolume,
+ cs43l22_SetMute,
+ cs43l22_SetOutputMode,
+ cs43l22_Reset,
+};
+
+static uint8_t Is_cs43l22_Stop = 1;
+
+volatile uint8_t OutputDev = 0;
+
+/**
+ * @}
+ */
+
+/** @defgroup CS43L22_Function_Prototypes
+ * @{
+ */
+static uint8_t CODEC_IO_Write(uint8_t Addr, uint8_t Reg, uint8_t Value);
+/**
+ * @}
+ */
+
+/** @defgroup CS43L22_Private_Functions
+ * @{
+ */
+
+/**
+ * @brief Initializes the audio codec and the control interface.
+ * @param DeviceAddr: Device address on communication Bus.
+ * @param OutputDevice: can be OUTPUT_DEVICE_SPEAKER, OUTPUT_DEVICE_HEADPHONE,
+ * OUTPUT_DEVICE_BOTH or OUTPUT_DEVICE_AUTO .
+ * @param Volume: Initial volume level (from 0 (Mute) to 100 (Max))
+ * @retval 0 if correct communication, else wrong communication
+ */
+uint32_t cs43l22_Init(uint16_t DeviceAddr, uint16_t OutputDevice, uint8_t Volume, uint32_t AudioFreq)
+{
+ uint32_t counter = 0;
+
+ /* Initialize the Control interface of the Audio Codec */
+ AUDIO_IO_Init();
+
+ /* Keep Codec powered OFF */
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_POWER_CTL1, 0x01);
+
+ /*Save Output device for mute ON/OFF procedure*/
+ switch (OutputDevice)
+ {
+ case OUTPUT_DEVICE_SPEAKER:
+ OutputDev = 0xFA;
+ break;
+
+ case OUTPUT_DEVICE_HEADPHONE:
+ OutputDev = 0xAF;
+ break;
+
+ case OUTPUT_DEVICE_BOTH:
+ OutputDev = 0xAA;
+ break;
+
+ case OUTPUT_DEVICE_AUTO:
+ OutputDev = 0x05;
+ break;
+
+ default:
+ OutputDev = 0x05;
+ break;
+ }
+
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_POWER_CTL2, OutputDev);
+
+ /* Clock configuration: Auto detection */
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_CLOCKING_CTL, 0x81);
+
+ /* Set the Slave Mode and the audio Standard */
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_INTERFACE_CTL1, CODEC_STANDARD);
+
+ /* Set the Master volume */
+ counter += cs43l22_SetVolume(DeviceAddr, Volume);
+
+ /* If the Speaker is enabled, set the Mono mode and volume attenuation level */
+ if(OutputDevice != OUTPUT_DEVICE_HEADPHONE)
+ {
+ /* Set the Speaker Mono mode */
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_PLAYBACK_CTL2, 0x06);
+
+ /* Set the Speaker attenuation level */
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_SPEAKER_A_VOL, 0x00);
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_SPEAKER_B_VOL, 0x00);
+ }
+
+ /* Additional configuration for the CODEC. These configurations are done to reduce
+ the time needed for the Codec to power off. If these configurations are removed,
+ then a long delay should be added between powering off the Codec and switching
+ off the I2S peripheral MCLK clock (which is the operating clock for Codec).
+ If this delay is not inserted, then the codec will not shut down properly and
+ it results in high noise after shut down. */
+
+ /* Disable the analog soft ramp */
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_ANALOG_ZC_SR_SETT, 0x00);
+ /* Disable the digital soft ramp */
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_MISC_CTL, 0x04);
+ /* Disable the limiter attack level */
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_LIMIT_CTL1, 0x00);
+ /* Adjust Bass and Treble levels */
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_TONE_CTL, 0x0F);
+ /* Adjust PCM volume level */
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_PCMA_VOL, 0x0A);
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_PCMB_VOL, 0x0A);
+
+ /* Return communication control value */
+ return counter;
+}
+
+/**
+ * @brief Deinitializes the audio codec.
+ * @param None
+ * @retval None
+ */
+void cs43l22_DeInit(void)
+{
+ /* Deinitialize Audio Codec interface */
+ AUDIO_IO_DeInit();
+}
+
+/**
+ * @brief Get the CS43L22 ID.
+ * @param DeviceAddr: Device address on communication Bus.
+ * @retval The CS43L22 ID
+ */
+uint32_t cs43l22_ReadID(uint16_t DeviceAddr)
+{
+ uint8_t Value;
+ /* Initialize the Control interface of the Audio Codec */
+ AUDIO_IO_Init();
+
+ Value = AUDIO_IO_Read(DeviceAddr, CS43L22_CHIPID_ADDR);
+ Value = (Value & CS43L22_ID_MASK);
+
+ return((uint32_t) Value);
+}
+
+/**
+ * @brief Start the audio Codec play feature.
+ * @note For this codec no Play options are required.
+ * @param DeviceAddr: Device address on communication Bus.
+ * @retval 0 if correct communication, else wrong communication
+ */
+uint32_t cs43l22_Play(uint16_t DeviceAddr, uint16_t* pBuffer, uint16_t Size)
+{
+ uint32_t counter = 0;
+
+ if(Is_cs43l22_Stop == 1)
+ {
+ /* Enable the digital soft ramp */
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_MISC_CTL, 0x06);
+
+ /* Enable Output device */
+ counter += cs43l22_SetMute(DeviceAddr, AUDIO_MUTE_OFF);
+
+ /* Power on the Codec */
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_POWER_CTL1, 0x9E);
+ Is_cs43l22_Stop = 0;
+ }
+
+ /* Return communication control value */
+ return counter;
+}
+
+/**
+ * @brief Pauses playing on the audio codec.
+ * @param DeviceAddr: Device address on communication Bus.
+ * @retval 0 if correct communication, else wrong communication
+ */
+uint32_t cs43l22_Pause(uint16_t DeviceAddr)
+{
+ uint32_t counter = 0;
+
+ /* Pause the audio file playing */
+ /* Mute the output first */
+ counter += cs43l22_SetMute(DeviceAddr, AUDIO_MUTE_ON);
+
+ /* Put the Codec in Power save mode */
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_POWER_CTL1, 0x01);
+
+ return counter;
+}
+
+/**
+ * @brief Resumes playing on the audio codec.
+ * @param DeviceAddr: Device address on communication Bus.
+ * @retval 0 if correct communication, else wrong communication
+ */
+uint32_t cs43l22_Resume(uint16_t DeviceAddr)
+{
+ uint32_t counter = 0;
+ volatile uint32_t index = 0x00;
+ /* Resumes the audio file playing */
+ /* Unmute the output first */
+ counter += cs43l22_SetMute(DeviceAddr, AUDIO_MUTE_OFF);
+
+ for(index = 0x00; index < 0xFF; index++);
+
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_POWER_CTL2, OutputDev);
+
+ /* Exit the Power save mode */
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_POWER_CTL1, 0x9E);
+
+ return counter;
+}
+
+/**
+ * @brief Stops audio Codec playing. It powers down the codec.
+ * @param DeviceAddr: Device address on communication Bus.
+ * @param CodecPdwnMode: selects the power down mode.
+ * - CODEC_PDWN_HW: Physically power down the codec. When resuming from this
+ * mode, the codec is set to default configuration
+ * (user should re-Initialize the codec in order to
+ * play again the audio stream).
+ * @retval 0 if correct communication, else wrong communication
+ */
+uint32_t cs43l22_Stop(uint16_t DeviceAddr, uint32_t CodecPdwnMode)
+{
+ uint32_t counter = 0;
+
+ /* Mute the output first */
+ counter += cs43l22_SetMute(DeviceAddr, AUDIO_MUTE_ON);
+
+ /* Disable the digital soft ramp */
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_MISC_CTL, 0x04);
+
+ /* Power down the DAC and the speaker (PMDAC and PMSPK bits)*/
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_POWER_CTL1, 0x9F);
+
+ Is_cs43l22_Stop = 1;
+ return counter;
+}
+
+/**
+ * @brief Sets higher or lower the codec volume level.
+ * @param DeviceAddr: Device address on communication Bus.
+ * @param Volume: a byte value from 0 to 255 (refer to codec registers
+ * description for more details).
+ * @retval 0 if correct communication, else wrong communication
+ */
+uint32_t cs43l22_SetVolume(uint16_t DeviceAddr, uint8_t Volume)
+{
+ uint32_t counter = 0;
+ uint8_t convertedvol = VOLUME_CONVERT(Volume);
+
+ if(Volume > 0xE6)
+ {
+ /* Set the Master volume */
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_MASTER_A_VOL, convertedvol - 0xE7);
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_MASTER_B_VOL, convertedvol - 0xE7);
+ }
+ else
+ {
+ /* Set the Master volume */
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_MASTER_A_VOL, convertedvol + 0x19);
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_MASTER_B_VOL, convertedvol + 0x19);
+ }
+
+ return counter;
+}
+
+/**
+ * @brief Sets new frequency.
+ * @param DeviceAddr: Device address on communication Bus.
+ * @param AudioFreq: Audio frequency used to play the audio stream.
+ * @retval 0 if correct communication, else wrong communication
+ */
+uint32_t cs43l22_SetFrequency(uint16_t DeviceAddr, uint32_t AudioFreq)
+{
+ return 0;
+}
+
+/**
+ * @brief Enables or disables the mute feature on the audio codec.
+ * @param DeviceAddr: Device address on communication Bus.
+ * @param Cmd: AUDIO_MUTE_ON to enable the mute or AUDIO_MUTE_OFF to disable the
+ * mute mode.
+ * @retval 0 if correct communication, else wrong communication
+ */
+uint32_t cs43l22_SetMute(uint16_t DeviceAddr, uint32_t Cmd)
+{
+ uint32_t counter = 0;
+
+ /* Set the Mute mode */
+ if(Cmd == AUDIO_MUTE_ON)
+ {
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_POWER_CTL2, 0xFF);
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_HEADPHONE_A_VOL, 0x01);
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_HEADPHONE_B_VOL, 0x01);
+ }
+ else /* AUDIO_MUTE_OFF Disable the Mute */
+ {
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_HEADPHONE_A_VOL, 0x00);
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_HEADPHONE_B_VOL, 0x00);
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_POWER_CTL2, OutputDev);
+ }
+ return counter;
+}
+
+/**
+ * @brief Switch dynamically (while audio file is played) the output target
+ * (speaker or headphone).
+ * @note This function modifies a global variable of the audio codec driver: OutputDev.
+ * @param DeviceAddr: Device address on communication Bus.
+ * @param Output: specifies the audio output target: OUTPUT_DEVICE_SPEAKER,
+ * OUTPUT_DEVICE_HEADPHONE, OUTPUT_DEVICE_BOTH or OUTPUT_DEVICE_AUTO
+ * @retval 0 if correct communication, else wrong communication
+ */
+uint32_t cs43l22_SetOutputMode(uint16_t DeviceAddr, uint8_t Output)
+{
+ uint32_t counter = 0;
+
+ switch (Output)
+ {
+ case OUTPUT_DEVICE_SPEAKER:
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_POWER_CTL2, 0xFA); /* SPK always ON & HP always OFF */
+ OutputDev = 0xFA;
+ break;
+
+ case OUTPUT_DEVICE_HEADPHONE:
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_POWER_CTL2, 0xAF); /* SPK always OFF & HP always ON */
+ OutputDev = 0xAF;
+ break;
+
+ case OUTPUT_DEVICE_BOTH:
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_POWER_CTL2, 0xAA); /* SPK always ON & HP always ON */
+ OutputDev = 0xAA;
+ break;
+
+ case OUTPUT_DEVICE_AUTO:
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_POWER_CTL2, 0x05); /* Detect the HP or the SPK automatically */
+ OutputDev = 0x05;
+ break;
+
+ default:
+ counter += CODEC_IO_Write(DeviceAddr, CS43L22_REG_POWER_CTL2, 0x05); /* Detect the HP or the SPK automatically */
+ OutputDev = 0x05;
+ break;
+ }
+ return counter;
+}
+
+/**
+ * @brief Resets cs43l22 registers.
+ * @param DeviceAddr: Device address on communication Bus.
+ * @retval 0 if correct communication, else wrong communication
+ */
+uint32_t cs43l22_Reset(uint16_t DeviceAddr)
+{
+ return 0;
+}
+
+/**
+ * @brief Writes/Read a single data.
+ * @param Addr: I2C address
+ * @param Reg: Reg address
+ * @param Value: Data to be written
+ * @retval None
+ */
+static uint8_t CODEC_IO_Write(uint8_t Addr, uint8_t Reg, uint8_t Value)
+{
+ uint32_t result = 0;
+
+ AUDIO_IO_Write(Addr, Reg, Value);
+
+#ifdef VERIFY_WRITTENDATA
+ /* Verify that the data has been correctly written */
+ result = (AUDIO_IO_Read(Addr, Reg) == Value)? 0:1;
+#endif /* VERIFY_WRITTENDATA */
+
+ return result;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/