/*
 * Author: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
 * Copyright (c) 2014 Intel Corporation.
 * Copyright (c) 2015 Linaro Limited.
 *
 * Copied from src/arm/banana.c
 *
 * 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.
 */

#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <mraa/common.h>

#include "common.h"
#include "arm/96boards.h"

#define DT_BASE "/sys/firmware/devicetree/base"

#define PLATFORM_NAME_DB410C "DB410C"
#define PLATFORM_NAME_HIKEY "HIKEY"

int db410c_ls_gpio_pins[MRAA_96BOARDS_LS_GPIO_COUNT] = {
  36, 12, 13, 69, 115, 4, 24, 25, 35, 34, 28, 33,
};

const char* db410c_serialdev[MRAA_96BOARDS_LS_UART_COUNT] = { "/dev/ttyMSM0", "/dev/ttyMSM1"};

int hikey_ls_gpio_pins[MRAA_96BOARDS_LS_GPIO_COUNT] = {
 488, 489, 490, 491, 492, 415, 463, 495, 426, 433, 427, 434,
};

const char* hikey_serialdev[MRAA_96BOARDS_LS_UART_COUNT] = { "/dev/ttyAMA2", "/dev/ttyAMA3"};

mraa_board_t* mraa_96boards()
{
   int i, pin;
   int *ls_gpio_pins;
   char ch;
   char name[MRAA_PIN_NAME_SIZE];

   mraa_board_t* b = (mraa_board_t*) calloc(1, sizeof(mraa_board_t));
   if (b == NULL) {
      return NULL;
   }

   // pin mux for buses are setup by default by kernel so tell mraa to ignore them
   b->no_bus_mux = 1;

   if (mraa_file_exist(DT_BASE "/model")) {
        // We are on a modern kernel, great!!!!
        if (mraa_file_contains(DT_BASE "/model", "Qualcomm Technologies, Inc. APQ 8016 SBC")) {
            b->platform_name = PLATFORM_NAME_DB410C;
            b->phy_pin_count = DB410C_PINCOUNT;
            ls_gpio_pins = db410c_ls_gpio_pins;
            b->uart_dev[0].device_path = db410c_serialdev[0];
            b->uart_dev[1].device_path = db410c_serialdev[1];
        } else if (mraa_file_contains(DT_BASE "/model", "HiKey Development Board")) {
            b->platform_name = PLATFORM_NAME_HIKEY;
            b->phy_pin_count = HIKEY_PINCOUNT;
            ls_gpio_pins = hikey_ls_gpio_pins;
            b->uart_dev[0].device_path = hikey_serialdev[0];
            b->uart_dev[1].device_path = hikey_serialdev[1];
	}
   }

   //UART
   b->uart_dev_count = MRAA_96BOARDS_LS_UART_COUNT;
   b->def_uart_dev = 0;

   //I2C
   b->i2c_bus_count = MRAA_96BOARDS_LS_I2C_COUNT;
   b->def_i2c_bus = 0;
   b->i2c_bus[0].bus_id = 0;
   b->i2c_bus[1].bus_id= 1;

   //SPI
   b->spi_bus_count = MRAA_96BOARDS_LS_SPI_COUNT;
   b->spi_bus[0].bus_id = 0;
   b->def_spi_bus = 0;

   b->adv_func = (mraa_adv_func_t*) calloc(1, sizeof(mraa_adv_func_t));
   if (b->adv_func == NULL) {
      free(b);
      return NULL;
   }

   b->pins = (mraa_pininfo_t*) malloc(sizeof(mraa_pininfo_t) * b->phy_pin_count);
   if (b->pins == NULL) {
      free(b->adv_func);
      free(b);
      return NULL;
   }

   // gpio lable starts from GPIO-A to GPIO-F
   ch = 'A';
   for (i = 0; i < MRAA_96BOARDS_LS_GPIO_COUNT; i++)
   {
      pin = ls_gpio_pins[i];
      sprintf(name, "GPIO-%c", ch++);
      strncpy(b->pins[pin].name, name, MRAA_PIN_NAME_SIZE);
      b->pins[pin].capabilites = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 };
      b->pins[pin].gpio.pinmap = pin;
      b->pins[pin].gpio.mux_total = 0;
   }

   b->gpio_count = MRAA_96BOARDS_LS_GPIO_COUNT;

   b->aio_count = 0;
   b->adc_raw = 0;
   b->adc_supported = 0;

   return b;
}