TLV320_RBSP class, defined on the I2C master bus.
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Diff: TLV320_RBSP.h
- Revision:
- 0:bb69b79a1e05
- Child:
- 1:4b34a496efac
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TLV320_RBSP.h Mon Jun 01 08:33:42 2015 +0000 @@ -0,0 +1,175 @@ +/******************************************************************************* +* DISCLAIMER +* This software is supplied by Renesas Electronics Corporation and is only +* intended for use with Renesas products. No other uses are authorized. This +* software is owned by Renesas Electronics Corporation and is protected under +* all applicable laws, including copyright laws. +* THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING +* THIS SOFTWARE, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT +* LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE +* AND NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED. +* TO THE MAXIMUM EXTENT PERMITTED NOT PROHIBITED BY LAW, NEITHER RENESAS +* ELECTRONICS CORPORATION NOR ANY OF ITS AFFILIATED COMPANIES SHALL BE LIABLE +* FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR +* ANY REASON RELATED TO THIS SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE +* BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. +* Renesas reserves the right, without notice, to make changes to this software +* and to discontinue the availability of this software. By using this software, +* you agree to the additional terms and conditions found by accessing the +* following link: +* http://www.renesas.com/disclaimer* +* Copyright (C) 2015 Renesas Electronics Corporation. All rights reserved. +*******************************************************************************/ + +#ifndef MBED_TLV320_RBSP_H +#define MBED_TLV320_RBSP_H + +#include "mbed.h" +#include "R_BSP_Ssif.h" + +/** TLV320_RBSP class, defined on the I2C master bus +* +*/ +class TLV320_RBSP { +public: + + /** Create a TLV320_RBSP object defined on the I2C port + * + * @param xout AUDIO_X1 clock output + * @param cs Control port input latch/address select (codec pin) + * @param sda I2C data line pin + * @param scl I2C clock line pin + * @param sck SSIF serial bit clock + * @param ws SSIF word selection + * @param tx SSIF serial data output + * @param rx SSIF serial data input + * @param int_level Interupt priority (SSIF) + * @param max_write_num The upper limit of write buffer (SSIF) + * @param max_read_num The upper limit of read buffer (SSIF) + */ + TLV320_RBSP(PinName xout, PinName cs, PinName sda, PinName scl, PinName sck, PinName ws, PinName tx, PinName rx, uint8_t int_level = 0x80, int32_t max_write_num = 16, int32_t max_read_num = 16); + + /** Overloaded power() function default = 0x80, record requires 0x02 + * + * @param device Call individual devices to power up/down + * Device power 0x00 = On 0x80 = Off + * Clock 0x00 = On 0x40 = Off + * Oscillator 0x00 = On 0x20 = Off + * Outputs 0x00 = On 0x10 = Off + * DAC 0x00 = On 0x08 = Off + * ADC 0x00 = On 0x04 = Off + * Microphone input 0x00 = On 0x02 = Off + * Line input 0x00 = On 0x01 = Off + */ + void power(int device = 0x07); + + /** Set I2S interface bit length and mode + * + * @param length Set bit length to 16, 20, 24 or 32 bits + */ + void format(char length); + + /** Set sample frequency + * + * @param frequency Sample frequency of data in Hz + * @return true = success, false = failure + * + * The TLV320 supports the following frequencies: 8.021kHz, 44.1kHz, 88.2kHz + * Default is 44.1kHz + */ + bool frequency(int hz); + + /** Reset TLV320 + * + */ + void reset(void); + + /** Enqueue asynchronous write request + * + * @param p_data Location of the data + * @param data_size Number of bytes to write + * @param p_data_conf Asynchronous control block structure + * @return Number of bytes written on success. negative number on error. + */ + int write(void * const p_data, uint32_t data_size, const rbsp_data_conf_t * const p_data_conf = NULL) { + return mI2s_.write(p_data, data_size, p_data_conf); + }; + + /** Enqueue asynchronous read request + * + * @param p_data Location of the data + * @param data_size Number of bytes to read + * @param p_data_conf Asynchronous control block structure + * @return Number of bytes read on success. negative number on error. + */ + int read(void * const p_data, uint32_t data_size, const rbsp_data_conf_t * const p_data_conf = NULL) { + return mI2s_.read(p_data, data_size, p_data_conf); + }; + + /** Line in volume control i.e. record volume + * + * @param leftVolumeIn Left line-in volume + * @param rightVolumeIn Right line-in volume + * @return Returns "true" for success, "false" if parameters are out of range + * Parameters accept a value, where 0.0 < parameter < 1.0 and where 0.0 maps to -34.5dB + * and 1.0 maps to +12dB (0.74 = 0 dB default). + */ + bool inputVolume(float leftVolumeIn, float rightVolumeIn); + + /** Headphone out volume control + * + * @param leftVolumeOut Left headphone-out volume + * @param rightVolumeOut Right headphone-out volume + * @return Returns "true" for success, "false" if parameters are out of range + * Parameters accept a value, where 0.0 < parameter < 1.0 and where 0.0 maps to -73dB (mute) + * and 1.0 maps to +6dB (0.5 = default) + */ + bool outputVolume(float leftVolumeOut, float rightVolumeOut); + + /** Analog audio path control (Bypass) function default = false + * + * @param bypassVar Route analogue audio direct from line in to headphone out + */ + void bypass(bool bypassVar); + + /** Analog audio path control (Input select for ADC) function default = false + * + * @param micVar Input select for ADC. true : Microphone , false : Line + */ + void mic(bool micVar); + + /** Digital audio path control + * + * @param softMute Mute output + */ + void mute(bool softMute); + +protected: + char cmd[2]; // the address and command for TLV320 internal registers + int mAddr; // register write address +private: + DigitalOut audio_cs_; + I2C mI2c_; // MUST use the I2C port + SSIF mI2s_; + ssif_channel_cfg_t ssif_cfg; + char audio_path_control; + /** Digital interface activation + * + */ + void activateDigitalInterface_(void); + + // TLV320AIC23B register addresses as defined in the TLV320AIC23B datasheet + #define LEFT_LINE_INPUT_CHANNEL_VOLUME_CONTROL (0x00 << 1) + #define RIGHT_LINE_INPUT_CHANNEL_VOLUME_CONTROL (0x01 << 1) + #define LEFT_CHANNEL_HEADPHONE_VOLUME_CONTROL (0x02 << 1) + #define RIGHT_CHANNEL_HEADPHONE_VOLUME_CONTROL (0x03 << 1) + #define ANALOG_AUDIO_PATH_CONTROL (0x04 << 1) + #define DIGITAL_AUDIO_PATH_CONTROL (0x05 << 1) + #define POWER_DOWN_CONTROL (0x06 << 1) + #define DIGITAL_AUDIO_INTERFACE_FORMAT (0x07 << 1) + #define SAMPLE_RATE_CONTROL (0x08 << 1) + #define DIGITAL_INTERFACE_ACTIVATION (0x09 << 1) + #define RESET_REGISTER (0x0F << 1) +}; + +#endif