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/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* STM32L-discovery board configuration */
#include "common.h"
#include "gpio.h"
#include "hooks.h"
#include "registers.h"
#include "task.h"
#include "util.h"
void button_event(enum gpio_signal signal)
{
}
/* GPIO signal list. Must match order from enum gpio_signal. */
const struct gpio_info gpio_list[] = {
/* Inputs with interrupt handlers are first for efficiency */
{"USER_BUTTON", GPIO_A, (1<<0), GPIO_INT_BOTH, button_event},
/* Outputs */
{"LED_BLUE", GPIO_B, (1<<6), GPIO_OUT_LOW, NULL},
{"LED_GREEN", GPIO_B, (1<<7), GPIO_OUT_LOW, NULL},
/* Unimplemented signals which we need to emulate for now */
GPIO_SIGNAL_NOT_IMPLEMENTED("ENTERING_RW"),
GPIO_SIGNAL_NOT_IMPLEMENTED("WP_L"),
};
BUILD_ASSERT(ARRAY_SIZE(gpio_list) == GPIO_COUNT);
/* Initialize board. */
static void board_init(void)
{
gpio_enable_interrupt(GPIO_USER_BUTTON);
}
DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
/* Pins with alternate functions */
const struct gpio_alt_func gpio_alt_funcs[] = {
{GPIO_A, 0x0600, GPIO_ALT_USART, MODULE_UART},
};
const int gpio_alt_funcs_count = ARRAY_SIZE(gpio_alt_funcs);
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