/*
 * Copyright (C) 2017 XRADIO TECHNOLOGY CO., LTD. All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *    1. Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *    2. Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the
 *       distribution.
 *    3. Neither the name of XRADIO TECHNOLOGY CO., LTD. nor the names of
 *       its contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <stdio.h>
#include <stdlib.h>
#include "kernel/os/os.h"
#include "driver/chip/hal_keyboard.h"

#include "common/framework/platform_init.h"

#define NON_KEY_PRESS            0xffffffff
#define KeyTask_PRIO             4
#define KeyTask_STACKSIZE        1024
static OS_Thread_t g_key_thread;

typedef struct {
	OS_Semaphore_t   key_sem;
	uint8_t     len;
	uint32_t    buffer[KEY_SCAN_BUFFER_MAX];
	uint8_t     p_col;
	uint8_t     p_row;
	uint8_t     flag;
} key_priv;

static key_priv     gkeypriv;

static void keyboard_press_cols_rows(uint8_t index, uint32_t value)
{
	for (uint8_t i = 0; i < 32; i++) {
		if ((value & 0x01) == 0) {
			gkeypriv.p_row = i % KEY_SCAN_ROWS_MAX;
			gkeypriv.p_col = (index * 32 + i) / KEY_SCAN_ROWS_MAX;
			printf("press key row: %d, col: %d\n", gkeypriv.p_row, gkeypriv.p_col);
		}
		value >>= 1;
	}
}

/*
* keyboard callback function
*/
static void keyboard_callback(uint32_t *rowdata, uint8_t len)
{
	OS_Status ret;

	gkeypriv.len = len;
	for (uint8_t i = 0; i < len; i++) {
		gkeypriv.buffer[i] = rowdata[i];
	}
	gkeypriv.flag = 1;
	ret = OS_SemaphoreRelease(&gkeypriv.key_sem);
	if (ret != OS_OK)
		printf("%s,%d release semap err!\n", __func__, __LINE__);
}

static void Get_KeyValue_Task(void *arg)
{
	while (1) {
		if (OS_SemaphoreWait(&gkeypriv.key_sem, OS_WAIT_FOREVER) != OS_OK)
			continue;

		for (uint8_t i = 0; i < gkeypriv.len; i++) {
			if ((gkeypriv.buffer[i] != NON_KEY_PRESS)) {
				printf("keydata[%d]: 0x%08x\n", i, gkeypriv.buffer[i]);
				keyboard_press_cols_rows(i, gkeypriv.buffer[i]);
			}
		}
	}
}

static int keyboard_init(void)
{
	keyboard_InitParam param;
	param.freq = 24 * 1000000;
	param.cols = 0x00;
	param.rows = 0xff00;
	param.timecycle = 0x100;
	param.scan = 0x100;
	param.debounce = 0xA00;

	HAL_KeyBoard_Open(&param, keyboard_callback);

	if (OS_SemaphoreCreate(&gkeypriv.key_sem, 0, 1) != OS_OK) {
		printf("create semaphore failed\n");
		return -1;
	}

	if (OS_ThreadCreate(&g_key_thread,
	                    "user",
	                    Get_KeyValue_Task,
	                    NULL,
	                    KeyTask_PRIO,
	                    KeyTask_STACKSIZE) != OS_OK) {
		printf("create key task failed!\n");
		return -1;
	}

	return 0;
}

int main(void)
{
	platform_init();

	printf("\nInitial keyboard...\n");
	keyboard_init();
	printf("Initial keyboard OK\n");
	printf("You can press the keyboard now\n");

	return 0;
}