Production Test Program (PTP) for the LPC4088 Experiment Base Board
Dependencies: EALib I2S LM75B SDFileSystem mbed
Diff: WM8731.h
- Revision:
- 3:7ef908e84ae1
- Parent:
- 0:0d5190d379d3
--- a/WM8731.h Thu Aug 28 09:36:13 2014 +0000 +++ b/WM8731.h Mon Sep 08 11:34:53 2014 +0000 @@ -1,67 +1,303 @@ -/* - * Copyright 2013 Embedded Artists AB - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ +/** +* +* @section LICENSE +* +* Copyright (c) 2012 mbed +* +* Permission is hereby granted, free of charge, to any person obtaining a copy +* of this software and associated documentation files (the "Software"), to deal +* in the Software without restriction, including without limitation the rights +* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +* copies of the Software, and to permit persons to whom the Software is +* furnished to do so, subject to the following conditions: +* +* The above copyright notice and this permission notice shall be included in +* all copies or substantial portions of the Software. +* +* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +* THE SOFTWARE. +* +* @section DESCRIPTION +* A Driver set for the I2C half of the WM8731. Based on the WM8731 +* code http://mbed.org/users/p07gbar/code/WM8731/ +* +*/ #ifndef WM8731_H #define WM8731_H +#include "mbed.h" -/** - * Wolfson Mgiroelectronics Audio Codec WM8731. +#define WM8731_CS_HIGH true +#define WM8731_CS_LOW false + +#define WM8731_ON true +#define WM8731_OFF false + +#define WM8731_MUTE true +#define WM8731_UNMUTE false + +#define WM8731_MASTER true +#define WM8731_SLAVE false + +#define WM8731_LINE 0 +#define WM8731_MIC 1 +#define WM8731_NO_IN -1 + +#define WM8731_DE_EMPH_DISABLED 0 +#define WM8731_DE_EMPH_32KHZ 1 +#define WM8731_DE_EMPH_44KHZ 2 +#define WM8731_DE_EMPH_48KHZ 3 + +/** A class to control the I2C part of the WM8731 + * */ class WM8731 { public: - /** Registers */ - enum Register { - REG_R0_LEFT_LINE_IN = 0x00, - REG_R1_RIGHT_LINE_IN = 0x01, - REG_R2_LEFT_HP_OUT = 0x02, - REG_R3_RIGHT_HP_OUT = 0x03, - REG_R4_ANALOGUE_AUDIO_PATH_CONTROL = 0x04, - REG_R5_DIGITAL_AUDIO_PATH_CONTROL = 0x05, - REG_R6_POWER_DOWN_CONTROL = 0x06, - REG_R7_DIGITAL_AUDIO_INTERFACE_FORMAT = 0x07, - REG_R8_SAMPLING_CONTROL = 0x08, - REG_R9_ACTIVE_CONTROL = 0x09, - REG_R15_RESET = 0x0f - }; - - /** - * Create an interface to the WM8731 accelerometer + /** Create an instance of the WM8731 class + * + * @param i2c_sda The SDA pin of the I2C + * @param i2c_scl The SCL pin of the I2C + */ + WM8731(PinName i2c_sda, PinName i2c_scl); + + /** Create an instance of the WM8731 class + * + * @param i2c_sda The SDA pin of the I2C + * @param i2c_scl The SCL pin of the I2C + * @param cs_level The level of the CS pin on the WM8731 + */ + WM8731(PinName i2c_sda, PinName i2c_scl, bool cs_level); + + /** Control the power of the device + * + * @param on_off The power state + */ + void power(bool on_off); + + /** Control the input source of the device + * + * @param input Select the source of the input of the device: WM8731_LINE, WM8731_MIC, WM8731_NO_IN + */ + void input_select(int input); + + /** Set the headphone volume + * + * @param h_volume The desired headphone volume: 0->1 + */ + void headphone_volume(float h_volume); + + /** Set the line in pre-amp volume + * + * @param li_volume The desired line in volume: 0->1 + */ + void linein_volume(float li_volume); + + /** Turn on/off the microphone pre-amp boost + * + * @param mic_boost Boost on or off + */ + void microphone_boost(bool mic_boost); + + /** Mute the input + * + * @param mute Mute on/off + */ + void input_mute(bool mute); + + /** Mute the output + * + * @param mute Mute on/off + */ + void output_mute(bool mute); + + /** Turn on/off the input stage + * + * @param on_off Input stage on(true)/off(false) + */ + void input_power(bool on_off); + + /** Turn on/off the output stage + * + * @param on_off Output stage on(true)/off(false) + */ + void output_power(bool on_off); + + /** Select the word size + * + * @param words 16/20/24/32 bits + */ + void wordsize(int words); + + /** Select interface mode: Master or Slave + * + * @param master Interface mode: master(true)/slave + */ + void master(bool master); + + /** Select the sample rate + * + * @param freq Frequency: 96/48/32/8 kHz + */ + void frequency(int freq); + + /** Enable the input highpass filter + * + * @param enabled Input highpass filter enabled + */ + void input_highpass(bool enabled); + + /** Enable the output soft mute + * + * @param enabled Output soft mute enabled + */ + void output_softmute(bool enabled); + + /** Turn on and off the I2S + * + * @param on_off Switch the I2S interface on(true)/off(false) + */ + void interface_switch(bool on_off); + + /** Reset the device and settings + * + */ + void reset(); + + /** Set the microphone sidetone volume * - * @param sda I2C data line pin - * @param scl I2C clock line pin + * @param sidetone_volume The volume of the sidetone: 0->1 + */ + void sidetone(float sidetone_vol); + + /** Set the analog bypass + * + * @param bypass_en Enable the bypass: enabled(true) */ - WM8731(PinName sda, PinName scl); - - /** - * Write data to the specified address. + void bypass(bool bypass_en); + + /** Set the deemphasis frequency + * + * @param code The deemphasis code: WM8731_DE_EMPH_DISABLED, WM8731_DE_EMPH_32KHZ, WM8731_DE_EMPH_44KHZ, WM8731_DE_EMPH_48KHZ + */ + void deemphasis(char code); + + /** Enable the input highpass filter * - * @param reg register to write to - * @param data data to write - * - * @return true if command was successful; otherwise false + * @param enable Enable the input highpass filter enabled(true) */ - bool writeCmd(Register reg, uint16_t data); - + + void adc_highpass(bool enable); + + /** Start the device sending/recieving etc + */ + void start(); + + /** Stop the device sending/recieving etc + */ + void stop(); + private: + + enum reg_address { + line_in_vol_left = 0x00, + line_in_vol_right = 0x01, + headphone_vol_left = 0x02, + headphone_vol_right = 0x03, + path_analog = 0x04, + path_digital = 0x05, + power_control = 0x06, + interface_format = 0x07, + sample_rate = 0x08, + interface_activation = 0x09, + reset_reg = 0x0F, + all = 0xFF + }; + + enum tlv320_defaults{ + df_bypass_ = 0, + df_ADC_source = WM8731_LINE, + df_mic_mute = WM8731_UNMUTE, + df_li_mute_left = 0, + df_li_mute_right = 0, + df_mic_boost_ = 0, + df_out_mute = WM8731_UNMUTE, + + df_de_emph_code = 0x00, + df_ADC_highpass_enable = 0, + + df_device_all_pwr = 1, + df_device_clk_pwr = 1, + df_device_osc_pwr = 1, + df_device_out_pwr = 1, + df_device_dac_pwr = 1, + df_device_adc_pwr = 1, + df_device_mic_pwr = 0, + df_device_lni_pwr = 1, + + df_device_master = 0, + df_device_lrswap = 0, + df_device_lrws = 0, + df_device_bitlength = 32, - I2C _i2c; + df_ADC_rate = 32000, + df_DAC_rate = 32000, + + df_device_interface_active = 0 + }; + + + I2C i2c; + uint8_t address; + void command(reg_address add, uint16_t byte); + void form_cmd(reg_address add); + void defaulter(); + + char gen_samplerate(); + + //I2S i2s_tx(I2S_TRANSMIT, p5, p6 , p7); + //I2S i2s_rx(I2S_RECIEVE , p8, p29, p30); + + float hp_vol_left, hp_vol_right; + float li_vol_left, li_vol_right; + float sdt_vol; + bool li_mute_left, li_mute_right; + bool bypass_; + bool ADC_source; + bool ADC_source_old; + bool mic_mute; + bool mic_boost_; + bool out_mute; + char de_emph_code; + bool ADC_highpass_enable; + + bool device_all_pwr; + bool device_clk_pwr; + bool device_osc_pwr; + bool device_out_pwr; + bool device_dac_pwr; + bool device_adc_pwr; + bool device_mic_pwr; + bool device_lni_pwr; + + bool device_master; + bool device_lrswap; + bool device_lrws; + char device_bitlength; + static const char device_data_form = 0x02; + + int ADC_rate; + int DAC_rate; + static const bool device_usb_mode = false; + static const bool device_clk_in_div = false; + static const bool device_clk_out_div = false; + bool device_interface_active; }; #endif - -