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/******************************************************************************
* The MIT License
*
* Copyright (c) 2012 LeafLabs, LLC.
*
* 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.
*****************************************************************************/
/**
* @file wirish/stm32f2/wirish_debug.cpp
* @brief High level debug port configuration
*/
#include <wirish/wirish_debug.h>
#include <libmaple/gpio.h>
// TODO is it worth optimizing these into raw MODER and AFR[LH] writes?
void disableDebugPorts(void) {
// PA13-PA15 and PB3-PB4 are in system alternate function mode on
// reset, to support JTAG. Just put them in input mode to release
// them.
gpio_set_mode(GPIOA, 13, GPIO_MODE_INPUT);
gpio_set_mode(GPIOA, 14, GPIO_MODE_INPUT);
gpio_set_mode(GPIOA, 15, GPIO_MODE_INPUT);
gpio_set_mode(GPIOB, 3, GPIO_MODE_INPUT);
gpio_set_mode(GPIOB, 4, GPIO_MODE_INPUT);
}
void enableDebugPorts(void) {
// Put PA13-PA15 and PB3-PB4 back in system AF mode.
gpio_set_mode(GPIOA, 13, GPIO_MODE_AF);
gpio_set_mode(GPIOA, 14, GPIO_MODE_AF);
gpio_set_mode(GPIOA, 15, GPIO_MODE_AF);
gpio_set_mode(GPIOB, 3, GPIO_MODE_AF);
gpio_set_mode(GPIOB, 4, GPIO_MODE_AF);
gpio_set_af(GPIOA, 13, GPIO_AF_SYS);
gpio_set_af(GPIOA, 14, GPIO_AF_SYS);
gpio_set_af(GPIOA, 15, GPIO_AF_SYS);
gpio_set_af(GPIOB, 3, GPIO_AF_SYS);
gpio_set_af(GPIOB, 4, GPIO_AF_SYS);
}
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