/***********************************************************************************************************************
 * DISCLAIMER
 * This software is supplied by Renesas Electronics Corporation and is only intended for use with Renesas products. No
 * other uses are authorized. This software is owned by Renesas Electronics Corporation and is protected under all
 * applicable laws, including copyright laws.
 * THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING
 * THIS SOFTWARE, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED. TO THE MAXIMUM
 * EXTENT PERMITTED NOT PROHIBITED BY LAW, NEITHER RENESAS ELECTRONICS CORPORATION NOR ANY OF ITS AFFILIATED COMPANIES
 * SHALL BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR ANY REASON RELATED TO THIS
 * SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 * Renesas reserves the right, without notice, to make changes to this software and to discontinue the availability of
 * this software. By using this software, you agree to the additional terms and conditions found by accessing the
 * following link:
 * http://www.renesas.com/disclaimer
 *
 * Copyright (C) 2015(2016) Renesas Electronics Corporation. All rights reserved.
 ***********************************************************************************************************************/
/*******************************************************************************
 * File Name    : r_usb_pcdc_echo_apl.c
 * Description  : USB Peripheral Communications Devices Class Sample Code
 *******************************************************************************
 * History : DD.MM.YYYY Version Description
 *         : 30.09.2015 2.20 First Release
 *         : 30.09.2016 2.30 Using new USB API.
 ******************************************************************************/

/******************************************************************************
 Includes   <System Includes> , "Project Includes"
 ******************************************************************************/
#include    "r_usb_pcdc_apl.h"

#if OPERATION_MODE == USB_ECHO
/******************************************************************************
 Macro definitions
 ***************************************************************************#***/

/******************************************************************************
 Private global variables and functions
 ******************************************************************************/
static void     usb_pin_setting (void);
static uint8_t  g_buf[DATA_LEN];

const static usb_descriptor_t usb_descriptor =
{   
    g_apl_device,                   /* Pointer to the device descriptor */
    g_apl_configuration,            /* Pointer to the configuration descriptor for Full-speed */
    USB_NULL,                       /* Pointer to the configuration descriptor for Hi-speed */
    USB_NULL,                       /* Pointer to the qualifier descriptor */
    g_apl_string_table              /* Pointer to the string descriptor table */
};

/******************************************************************************
 Renesas Peripheral Communications Devices Class Sample Code functions
 ******************************************************************************/

/******************************************************************************
 Function Name   : usb_main
 Description     : Peripheral CDC application main process
 Arguments       : none
 Return value    : none
 ******************************************************************************/
void usb_main (void)
{
    usb_ctrl_t  ctrl;
    usb_cfg_t   cfg;

    usb_pin_setting(); /* USB MCU pin setting */

    ctrl.module     = USE_USBIP;
    ctrl.type       = USB_PCDC;
    cfg.usb_speed   = USB_SUPPORT_SPEED; /* USB_HS/USB_FS */
    cfg.usb_mode    = USB_PERI;
    cfg.p_usb_reg   = (usb_descriptor_t *)&usb_descriptor;
    R_USB_Open(&ctrl, &cfg); /* Initializes the USB module */

    /* Loop back between PC(TerminalSoft) and USB MCU */
    while (1)
    {
        switch (R_USB_GetEvent(&ctrl))
        {
            case USB_STS_CONFIGURED :
            case USB_STS_WRITE_COMPLETE :
                ctrl.type = USB_PCDC;
                R_USB_Read(&ctrl, g_buf, DATA_LEN);
            break;
            
            case USB_STS_READ_COMPLETE :
                R_USB_Write(&ctrl, g_buf, ctrl.size);
            break;
            
            case USB_STS_SUSPEND :
            case USB_STS_DETACH :
#if defined(USE_LPW)
                 low_power_mcu();
#endif /* defined(USE_LPW) */
            break;

            default :
            break;
        }
    }
} /* End of function usb_main() */

/******************************************************************************
 Function Name   : usb_pin_setting
 Description     : USB Pin Setting
 Arguments       : none
 Return value    : none
 ******************************************************************************/
static void usb_pin_setting (void)
{
    R_BSP_RegisterProtectDisable(BSP_REG_PROTECT_LPC_CGC_SWR);
    R_BSP_RegisterProtectDisable(BSP_REG_PROTECT_MPC);

    /* Deep standby USB monitor register (USB0 Transceiver Output fixed)
    b0      SRPC0    USB0 single end control
    b3-b1   Reserved 0
    b4      FIXPHY0  USB0 transceiver output fix
    b7-b5   Reserved 0
    b8      SRPC1    USB1 single end control
    b11-b9  Reserved 0
    b12     FIXPHY1  USB1 transceiver output fix
    b15-b13 Reserved 0
    b16     DP0      USB0 DP input
    b17     DM0      USB0 DM input
    b19-b18 Reserved 0
    b20     DOVCA0   USB0 OVRCURA input
    b21     DOVCB0   USB0 OVRCURB input
    b22     Reserved 0
    b23     DVBSTS0  USB1 VBUS input
    b24     DP1      USB1 DP input
    b25     DM1      USB1 DM input
    b27-b26 Reserved 0
    b28     DOVCA1   USB1 OVRCURA input
    b29     DOVCB1   USB1 OVRCURB input
    b30     Reserved 0
    b31     DVBSTS1  USB1 VBUS input
    */
    USB.DPUSR0R.BIT.FIXPHY0     = 0;

    /* Enable USB0 port & Pullup & Select Peripheral function
    b1-b0 USBMD    USB mode bit
    b2    PUPHZS   PUPHZ select
    b3    PDHZS    PDHZ select
    b4    USBE     USB enable
    b7-b5 Reserved 0
    */
    IOPORT.PFKUSB.BYTE          = 0x14; /* Select function mode for the USB0 pins. */

    /* Input buffer control register (Enable USB0 VBUS)
    b0 B0 Pn0 input buffer control bit
    b1 B1 Pn1 input buffer control bit
    b2 B2 Pn2 input buffer control bit
    b3 B3 Pn3 input buffer control bit
    b4 B4 Pn4 input buffer control bit
    b5 B5 Pn5 input buffer control bit
    b6 B6 Pn6 input buffer control bit
    b7 B7 Pn7 input buffer control bit
    */
    PORT1.ICR.BIT.B6            = 1;

    R_BSP_RegisterProtectEnable(BSP_REG_PROTECT_MPC);
    R_BSP_RegisterProtectEnable(BSP_REG_PROTECT_LPC_CGC_SWR);
}/* End of function usb_pin_setting */
/******************************************************************************
 End of function usb_mcu_init
 ******************************************************************************/
#endif  /* OPERATION_MODE == USB_ECHO */

/******************************************************************************
 End  Of File
 ******************************************************************************/