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edgetx-gx12/radio/src/hal/module_port.cpp
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8.8 KiB
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/*
* Copyright (C) EdgeTX
*
* Based on code named
* opentx - https://github.com/opentx/opentx
* th9x - http://code.google.com/p/th9x
* er9x - http://code.google.com/p/er9x
* gruvin9x - http://code.google.com/p/gruvin9x
*
* License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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.
*/
#include "module_port.h"
#include "dataconstants.h" // MAX_MODULES
#include "myeeprom.h" // g_eeGeneral
#include <string.h>
extern const etx_module_t* const _modules[];
extern const uint8_t _n_modules;
static etx_module_state_t _module_states[MAX_MODULES];
static uint8_t _module_power;
#if defined(CONFIGURABLE_MODULE_PORT)
// supplemental configurable port
static etx_module_port_t _extra_module_port;
void modulePortConfigExtra(const etx_module_port_t* port)
{
memcpy(&_extra_module_port, port, sizeof(_extra_module_port));
}
#endif
void modulePortInit()
{
memset(_module_states, 0, sizeof(_module_states));
_module_power = 0;
#if defined(CONFIGURABLE_MODULE_PORT)
memset(&_extra_module_port, 0, sizeof(_extra_module_port));
_extra_module_port.type = 0xFF; // some invalid type
#endif
}
static void modulePortClear(etx_module_state_t* st)
{
memset(st, 0, sizeof(etx_module_state_t));
}
static bool _init_serial_driver(etx_module_driver_t* d, const etx_module_port_t* port,
const etx_serial_init* params)
{
auto drv = port->drv.serial;
auto ctx = drv->init(port->hw_def, params);
if (!ctx) return false;
d->ctx = ctx;
d->port = port;
// S.PORT specific HW settings
if (port->port == ETX_MOD_PORT_SPORT && params->baudrate >= 400000) {
// enable over-sampling by 8
if (drv->setHWOption) drv->setHWOption(d->ctx, ETX_HWOption_OVER8);
// one-bit
if (g_eeGeneral.uartSampleMode == UART_SAMPLE_MODE_ONEBIT) {
if (drv->setHWOption) drv->setHWOption(d->ctx, ETX_HWOption_ONEBIT);
}
}
// setup polarity
if (port->set_inverted) {
port->set_inverted(params->polarity == ETX_Pol_Inverted);
}
return true;
}
static bool _init_timer_driver(etx_module_driver_t* d, const etx_module_port_t* port,
const etx_timer_config_t* cfg)
{
auto drv = port->drv.timer;
auto ctx = drv->init(port->hw_def, cfg);
if (!ctx) return false;
d->ctx = ctx;
d->port = port;
// setup polarity
if (port->set_inverted) {
port->set_inverted(false);
}
return true;
}
static bool _match_port(const etx_module_port_t* p, uint8_t type, uint8_t port,
uint8_t polarity, uint8_t direction, bool softserial_fallback)
{
if ((p->dir_flags & direction) != direction) {
return false;
}
if (p->type == type && p->port == port) {
// either polarity matches or can be set
if (polarity != ETX_Pol_Inverted ||
p->set_inverted ||
port == ETX_MOD_PORT_SOFT_INV ||
port == ETX_MOD_PORT_SPORT_INV) {
return true;
}
}
// soft-serial fallback (1. USART -> 2. SOFT-SERIAL)
if (softserial_fallback && polarity == ETX_Pol_Inverted) {
if (port == ETX_MOD_PORT_UART && p->port == ETX_MOD_PORT_SOFT_INV) {
return true;
}
if (port == ETX_MOD_PORT_SPORT && p->port == ETX_MOD_PORT_SPORT_INV) {
return true;
}
}
return false;
}
static const etx_module_port_t* _find_port(uint8_t module, uint8_t type,
uint8_t port, uint8_t polarity,
uint8_t direction,
bool softserial_fallback)
{
if (module >= MAX_MODULES || module >= _n_modules || !_modules[module])
return nullptr;
uint8_t n_ports = _modules[module]->n_ports;
const etx_module_port_t* p = _modules[module]->ports;
const etx_module_port_t* found_port = nullptr;
while(n_ports > 0) {
if (_match_port(p, type, port, polarity, direction, softserial_fallback)) {
found_port = p;
break;
}
++p; --n_ports;
}
#if defined(CONFIGURABLE_MODULE_PORT)
if (!found_port &&
polarity == ETX_Pol_Normal &&
module == EXTERNAL_MODULE &&
_extra_module_port.type == type &&
_extra_module_port.port == port) {
found_port = &_extra_module_port;
}
#endif
return found_port;
}
const etx_module_t* modulePortGetModuleDescription(uint8_t module)
{
if (module >= _n_modules) return nullptr;
return _modules[module];
}
const etx_module_port_t* modulePortFind(uint8_t module, uint8_t type,
uint8_t port, uint8_t polarity,
uint8_t direction)
{
return _find_port(module, type, port, polarity, direction, false);
}
void modulePortSetPower(uint8_t module, uint8_t enable)
{
if (module >= _n_modules) return;
auto mod = _modules[module];
if (mod && mod->set_pwr) {
mod->set_pwr(enable);
if (enable) {
_module_power |= (1 << module);
} else {
_module_power &= ~(1 << module);
}
}
}
bool modulePortPowered(uint8_t module)
{
if (module >= _n_modules) return false;
return _module_power & (1 << module);
}
etx_module_state_t* modulePortInitSerial(uint8_t module, uint8_t port,
const etx_serial_init* params,
bool softserial_fallback)
{
const etx_module_port_t* found_port = _find_port(module, ETX_MOD_TYPE_SERIAL,
port, params->polarity,
params->direction,
softserial_fallback);
if (!found_port) return nullptr;
auto state = &(_module_states[module]);
const uint8_t duplex = ETX_Dir_TX_RX;
uint8_t dir = params->direction & duplex;
bool init_ok = false;
if (dir == duplex) {
// init RX first, in case TX was already done previously
init_ok = _init_serial_driver(&state->rx, found_port, params);
// do not overwrite TX state if it has already been set:
// -> support using S.PORT in bidir mode
if (!state->tx.port) {
state->tx.port = state->rx.port;
state->tx.ctx = state->rx.ctx;
}
} else if (dir == ETX_Dir_TX) {
init_ok = _init_serial_driver(&state->tx, found_port, params);
} else if (dir == ETX_Dir_RX) {
init_ok = _init_serial_driver(&state->rx, found_port, params);
}
return init_ok ? state : nullptr;
}
etx_module_state_t* modulePortInitTimer(uint8_t module, uint8_t port,
const etx_timer_config_t* cfg)
{
const etx_module_port_t* found_port = _find_port(
module, ETX_MOD_TYPE_TIMER, port, ETX_Pol_Normal, ETX_MOD_DIR_TX, false);
if (!found_port) return nullptr;
auto state = &(_module_states[module]);
bool init_ok = _init_timer_driver(&state->tx, found_port, cfg);
return init_ok ? state : nullptr;
}
static void _deinit_driver(etx_module_driver_t* d)
{
auto p = d->port;
auto ctx = d->ctx;
if (p->type == ETX_MOD_TYPE_SERIAL) {
auto drv = p->drv.serial;
drv->deinit(ctx);
} else if (p->type == ETX_MOD_TYPE_TIMER) {
auto drv = p->drv.timer;
drv->deinit(ctx);
}
}
void modulePortDeInit(etx_module_state_t* st)
{
if (st->tx.port != nullptr) {
_deinit_driver(&st->tx);
}
if (st->rx.port != nullptr && st->rx.port != st->tx.port) {
_deinit_driver(&st->rx);
}
modulePortClear(st);
}
void modulePortDeInitRxPort(etx_module_state_t* st)
{
if (st->rx.port) {
_deinit_driver(&st->rx);
memset(&st->rx, 0, sizeof(etx_module_driver_t));
}
}
etx_module_state_t* modulePortGetState(uint8_t module)
{
if (module >= MAX_MODULES) return nullptr;
return &(_module_states[module]);
}
uint8_t modulePortGetModule(etx_module_state_t* st)
{
return st - _module_states;
}
bool modulePortIsPortUsedByModule(uint8_t module, uint8_t port)
{
auto mod_st = modulePortGetState(module);
if (!mod_st) return false;
auto tx_port = mod_st->tx.port;
auto rx_port = mod_st->rx.port;
return (tx_port && tx_port->port == port) ||
(rx_port && rx_port->port == port);
}
bool modulePortIsPortUsed(uint8_t port)
{
return modulePortGetModuleForPort(port) >= 0;
}
int8_t modulePortGetModuleForPort(uint8_t port)
{
for (uint8_t module = 0; module < MAX_MODULES; module++) {
if (modulePortIsPortUsedByModule(module, port)) {
return module;
}
}
return -1;
}
bool modulePortHasRx(uint8_t module)
{
auto mod_st = modulePortGetState(module);
if (!mod_st) return false;
return mod_st && mod_st->rx.port;
}