PWM drives the speaker.
Diff: PwmOutSpeaker.h
- Revision:
- 3:37a886d77bae
- Parent:
- 0:aba6e62b51a7
--- a/PwmOutSpeaker.h Fri Mar 24 06:55:24 2017 +0000 +++ b/PwmOutSpeaker.h Tue Jul 24 08:31:11 2018 +0000 @@ -18,12 +18,12 @@ #define PWMOUT_SPEAKER_H #include "mbed.h" -#include "rtos.h" +#include "AUDIO_RBSP.h" /** PwmOutSpeaker class * */ -class PwmOutSpeaker { +class PwmOutSpeaker : public AUDIO_RBSP { public: /** Create a PwmOutSpeaker * @@ -32,12 +32,16 @@ */ PwmOutSpeaker(PinName pwm_l, PinName pwm_r); + virtual void power(bool type = true) { + return; + } + /** Set I2S interface bit length and mode * * @param length Set bit length to 8 or 16 bits * @return true = success, false = failure */ - bool format(char length, char ch = 2); + virtual bool format(char length); /** Set sample frequency * @@ -47,7 +51,7 @@ * Supports the following frequencies: 8kHz, 8.021kHz, 32kHz, 44.1kHz, 48kHz * Default is 44.1kHz */ - bool frequency(int hz); + virtual bool frequency(int hz); /** Enqueue asynchronous write request * @@ -55,7 +59,11 @@ * @param data_size Number of bytes to write * @return Number of bytes written on success. negative number on error. */ - int write(uint8_t * const p_data, uint32_t data_size); + virtual int write(void * const p_data, uint32_t data_size, const rbsp_data_conf_t * const p_data_conf = NULL); + + virtual int read(void * const p_data, uint32_t data_size, const rbsp_data_conf_t * const p_data_conf = NULL) { + return -1; + } /** Volume control * @@ -63,7 +71,11 @@ * @return Returns "true" for success, "false" if parameters are out of range * Parameters accept a value, where 0.0 <= parameter <= 1.0 (1.0 = default) */ - bool outputVolume(float volume); + virtual bool outputVolume(float leftVolumeOut, float rightVolumeOut); + + virtual bool micVolume(float VolumeIn) { + return false; + } private: #define WRITE_BUFF_SIZE (1024 * 4) @@ -72,14 +84,14 @@ PwmOut _speaker_l; PwmOut _speaker_r; Ticker _timer; - int _channel; int _length; int _hz_multi; int _data_cnt; bool _playing; volatile uint32_t _bottom; volatile uint32_t _top; - float _speaker_vol; + float _speaker_vol_l; + float _speaker_vol_r; float _pwm_duty_buf[WRITE_BUFF_SIZE]; void sound_out(void);