mayhem-firmware/firmware/common/wm8731.cpp

183 lines
4.0 KiB
C++

/*
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
*
* This file is part of PortaPack.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include "wm8731.hpp"
#include "utility.hpp"
namespace wolfson {
namespace wm8731 {
void WM8731::configure_interface_i2s_slave() {
write(DigitalAudioInterfaceFormat {
.format = 2,
.iwl = 0,
.lrp = 0,
.lrswap = 0,
.ms = 0,
.bclkinv = 0,
.reserved0 = 0,
});
}
void WM8731::configure_interface_i2s_master() {
write(DigitalAudioInterfaceFormat {
.format = 2,
.iwl = 0,
.lrp = 0,
.lrswap = 0,
.ms = 1,
.bclkinv = 0,
.reserved0 = 0,
});
}
void WM8731::init() {
reset();
write(PowerDownControl {
.lineinpd = 1,
.micpd = 0,
.adcpd = 0,
.dacpd = 0,
.outpd = 0,
.oscpd = 1,
.clkoutpd = 1,
.poweroff = 0,
.reserved0 = 0,
});
// write(SamplingControl {
// .usb_normal = 0,
// .bosr = 0,
// .sr = 0,
// .clkidiv2 = 0,
// .clkodiv2 = 0,
// .reserved0 = 0,
// });
configure_interface_i2s_slave();
write(DigitalAudioPathControl {
.adchpd = 0,
.deemp = 0,
.dacmu = 0,
.hpor = 0,
.reserved0 = 0,
});
write(AnalogAudioPathControl {
.micboost = 1, // Enable 20dB boost
.mutemic = 0, // Disable mute (unmute)
.insel = 1, // Microphone input to ADC
.bypass = 0,
.dacsel = 1,
.sidetone = 0,
.sideatt = 0,
.reserved0 = 0,
});
write(ActiveControl {
.active = 1,
.reserved0 = 0,
});
set_line_in_volume(0.0_dB);
headphone_mute();
}
bool WM8731::detected() {
return reset();
}
bool WM8731::reset() {
return write(0x0f, 0);
}
bool WM8731::write(const Register reg) {
return write(toUType(reg), map.w[toUType(reg)]);
}
bool WM8731::write(const address_t reg_address, const reg_t value) {
const uint16_t word = (reg_address << 9) | value;
const std::array<uint8_t, 2> values {
static_cast<uint8_t>(word >> 8),
static_cast<uint8_t>(word & 0xff),
};
return bus.transmit(bus_address, values.data(), values.size());
}
uint32_t WM8731::reg_read(const size_t reg_address) {
return map.w[reg_address];
}
void WM8731::write(const LeftLineIn value) {
map.r.left_line_in = value;
write(Register::LeftLineIn);
}
void WM8731::write(const RightLineIn value) {
map.r.right_line_in = value;
write(Register::RightLineIn);
}
void WM8731::write(const LeftHeadphoneOut value) {
map.r.left_headphone_out = value;
write(Register::LeftHeadphoneOut);
}
void WM8731::write(const RightHeadphoneOut value) {
map.r.right_headphone_out = value;
write(Register::RightHeadphoneOut);
}
void WM8731::write(const AnalogAudioPathControl value) {
map.r.analog_audio_path_control = value;
write(Register::AnalogAudioPathControl);
}
void WM8731::write(const DigitalAudioPathControl value) {
map.r.digital_audio_path_control = value;
write(Register::DigitalAudioPathControl);
}
void WM8731::write(const PowerDownControl value) {
map.r.power_down_control = value;
write(Register::PowerDownControl);
}
void WM8731::write(const DigitalAudioInterfaceFormat value) {
map.r.digital_audio_interface_format = value;
write(Register::DigitalAudioInterfaceFormat);
}
void WM8731::write(const SamplingControl value) {
map.r.sampling_control = value;
write(Register::SamplingControl);
}
void WM8731::write(const ActiveControl value) {
map.r.active_control = value;
write(Register::ActiveControl);
}
} /* namespace wm8731 */
} /* namespace wolfson */