/**************************************************************************
 *
 * \file
 *
 * \brief Management of the USB host mass-storage task.
 *
 * This file manages the USB host mass-storage task.
 *
 * Copyright (c) 2009 Atmel Corporation. All rights reserved.
 *
 * \asf_license_start
 *
 * 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. The name of Atmel may not be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * 4. This software may only be redistributed and used in connection with an
 *    Atmel microcontroller product.
 *
 * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
 * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
 *
 * \asf_license_stop
 *
 ***************************************************************************/


//_____  I N C L U D E S ___________________________________________________

#include "conf_usb.h"


#if USB_HOST_FEATURE == true

#include "board.h"
#ifdef FREERTOS_USED
#include "FreeRTOS.h"
#include "task.h"
#endif
#include "conf_usb.h"
#include "usb_drv.h"
#include "usb_host_enum.h"
#include "usb_host_task.h"
#include "host_mem.h"
#include "ctrl_access.h"
#include "navigation.h"
#include "host_mass_storage_task.h"


//_____ M A C R O S ________________________________________________________


//_____ D E F I N I T I O N S ______________________________________________


//_____ D E C L A R A T I O N S ____________________________________________

static const char log_ms_dev_connected[] = "Mass-storage device connected\n";

static uint16_t sof_cnt;

volatile bool ms_new_device_connected;
volatile bool ms_connected;


//!
//! @brief This function initializes the host mass-storage task.
//!
void host_mass_storage_task_init(void)
{
  sof_cnt = 0;
  ms_new_device_connected = false;
  ms_connected = false;

#ifdef FREERTOS_USED
  xTaskCreate(host_mass_storage_task,
              configTSK_USB_HMS_NAME,
              configTSK_USB_HMS_STACK_SIZE,
              NULL,
              configTSK_USB_HMS_PRIORITY,
              NULL);
#endif  // FREERTOS_USED
}


//!
//! @brief This function manages the host mass-storage task.
//!
#ifdef FREERTOS_USED
void host_mass_storage_task(void *pvParameters)
#else
void host_mass_storage_task(void)
#endif
{
  uint8_t i;
  uint8_t max_lun;
  uint32_t capacity;

#ifdef FREERTOS_USED
  portTickType xLastWakeTime;

  xLastWakeTime = xTaskGetTickCount();
  while (true)
  {
    vTaskDelayUntil(&xLastWakeTime, configTSK_USB_HMS_PERIOD);

#endif  // FREERTOS_USED
    // First, check the host controller is in full operating mode with the
    // B-device attached and enumerated
    if (Is_host_ready())
    {
#if BOARD == EVK1100
      // Display Start-of-Frame counter on LEDs
      LED_Display_Field(LED_MONO0_GREEN |
                        LED_MONO1_GREEN |
                        LED_MONO2_GREEN |
                        LED_MONO3_GREEN,
                        sof_cnt >> 5);
#elif BOARD == EVK1101 || BOARD == UC3C_EK || BOARD == EVK1104 || BOARD == EVK1105 || BOARD == UC3C_EK
      // Display Start-of-Frame counter on LEDs
      LED_Display_Field(LED0 |
                        LED1,
                        sof_cnt >> 5);
#else
  #error The display of the SOFs must be defined here.
#endif

      // New device connection (executed only once after device connection)
      if (ms_new_device_connected)
      {
        ms_new_device_connected = false;

        // For all supported interfaces
        for (i = 0; i < Get_nb_supported_interface(); i++)
        {
          // If mass-storage class
          if (Get_class(i) == MS_CLASS)
          {
            ms_connected = true;
            LOG_STR(log_ms_dev_connected);

            // Get correct physical pipes associated with IN/OUT endpoints
            if (Is_ep_in(i, 0))
            { // Yes, associate it with the IN pipe
              g_pipe_ms_in = Get_ep_pipe(i, 0);
              g_pipe_ms_out = Get_ep_pipe(i, 1);
            }
            else
            { // No, invert...
              g_pipe_ms_in = Get_ep_pipe(i, 1);
              g_pipe_ms_out = Get_ep_pipe(i, 0);
            }

            // Get the number of LUNs in the connected mass-storage device
            max_lun = host_get_lun();

            // Initialize all USB drives
            for (host_selected_lun = 0; host_selected_lun < max_lun; host_selected_lun++)
            {
              if( host_ms_inquiry() != CTRL_GOOD )
                continue;
              if( host_read_capacity(host_selected_lun, &capacity) != CTRL_GOOD )
                continue;
              if( host_ms_request_sense() == CTRL_FAIL )
                continue;
              for (i = 0; i < 3; i++)
              {
                if (host_test_unit_ready(host_selected_lun) == CTRL_GOOD)
                {
                  host_read_capacity(host_selected_lun, &capacity);
                  break;
                }
              }
            }
            break;
          }
        }
      }
    }
#ifdef FREERTOS_USED
  }
#endif
}


//!
//! @brief host_sof_action
//!
//! This function increments the sof_cnt counter each time
//! the USB Start-of-Frame interrupt subroutine is executed (1 ms).
//! Useful to manage time delays
//!
void host_sof_action(void)
{
  sof_cnt++;
}


#endif  // USB_HOST_FEATURE == true
