/******************************************************************************************************************************************
* 文件名称: usbh_cdc_funct.c
* 功能说明:
* 技术支持: http://www.synwit.com.cn/e/tool/gbook/?bid=1
* 注意事项:
* 版本日期: V1.1.0      2020年11月3日
* 升级记录:
*
*
*******************************************************************************************************************************************
* @attention
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH CODING INFORMATION
* REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. AS A RESULT, SYNWIT SHALL NOT BE HELD LIABLE
* FOR ANY DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
* OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION CONTAINED HEREIN IN CONN-
* -ECTION WITH THEIR PRODUCTS.
*
* COPYRIGHT 2012 Synwit Technology
*******************************************************************************************************************************************/
#include "SWM341.h"
#include "usbh_core.h"
#include "usbh_cdc_core.h"
#include "usbh_cdc_funct.h"


/* wValue for SetControlLineState */
#define CDC_RTS_ACTIVATE        0x0002
#define CDC_RTS_DEACTIVATE      0x0000
#define CDC_DTR_ACTIVATE        0x0001
#define CDC_DTR_DEACTIVATE      0x0000


CDC_LineCoding_t CDC_GetLineCode;
CDC_LineCoding_t CDC_SetLineCode;


/******************************************************************************************************************************************
* 函数名称: USBH_CDC_GetLineCoding()
* 功能说明:
* 输    入: 无
* 输    出: 无
* 注意事项: 无
******************************************************************************************************************************************/
USBH_Status USBH_CDC_GetLineCoding(USBH_Info_t *phost)
{
    phost->Ctrl.setup.bRequestType = USB_REQ_D2H | USB_REQ_CLASS | USB_REQ_TO_INTERFACE;
    phost->Ctrl.setup.bRequest = CDC_GET_LINE_CODING;
    phost->Ctrl.setup.wValue = 0;
    phost->Ctrl.setup.wIndex = 0;
    phost->Ctrl.setup.wLength = sizeof(CDC_LineCoding_t);

    return USBH_CtrlTransfer(phost, (uint8_t *)&CDC_GetLineCode, sizeof(CDC_LineCoding_t));
}


/******************************************************************************************************************************************
* 函数名称: USBH_CDC_SetLineCoding()
* 功能说明:
* 输    入: 无
* 输    出: 无
* 注意事项: 无
******************************************************************************************************************************************/
USBH_Status USBH_CDC_SetLineCoding(USBH_Info_t *phost)
{
    phost->Ctrl.setup.bRequestType = USB_REQ_H2D | USB_REQ_CLASS | USB_REQ_TO_INTERFACE;
    phost->Ctrl.setup.bRequest = CDC_SET_LINE_CODING;
    phost->Ctrl.setup.wValue = 0;
    phost->Ctrl.setup.wIndex = 0;
    phost->Ctrl.setup.wLength = sizeof(CDC_LineCoding_t);

    return USBH_CtrlTransfer(phost, (uint8_t *)&CDC_SetLineCode , sizeof(CDC_LineCoding_t));
}


/******************************************************************************************************************************************
* 函数名称: USBH_CDC_SetControlLine()
* 功能说明:
* 输    入: 无
* 输    出: 无
* 注意事项: 无
******************************************************************************************************************************************/
USBH_Status USBH_CDC_SetControlLine(USBH_Info_t *phost)
{
    phost->Ctrl.setup.bRequestType = USB_REQ_H2D | USB_REQ_CLASS | USB_REQ_TO_INTERFACE;
    phost->Ctrl.setup.bRequest = CDC_SET_CONTROL_LINE;
    phost->Ctrl.setup.wValue = CDC_RTS_DEACTIVATE | CDC_DTR_DEACTIVATE;
    phost->Ctrl.setup.wIndex = 0;
    phost->Ctrl.setup.wLength = 0;

    return USBH_CtrlTransfer(phost, 0 , 0);
}


/******************************************************************************************************************************************
* 函数名称: USBH_CDC_IssueSetLineCoding()
* 功能说明:
* 输    入: 无
* 输    出: 无
* 注意事项: 无
******************************************************************************************************************************************/
void USBH_CDC_IssueSetLineCoding(USBH_Info_t *phost)
{
    USBH_CDC_Info.reqState = CDC_SET_LINE_CODING;

    phost->StateBkp = phost->State;
    phost->State = HOST_CLASS_REQUEST;
}


/******************************************************************************************************************************************
* 函数名称: USBH_CDC_IssueGetLineCoding()
* 功能说明:
* 输    入: 无
* 输    出: 无
* 注意事项: 无
******************************************************************************************************************************************/
void USBH_CDC_IssueGetLineCoding(USBH_Info_t *phost)
{
    USBH_CDC_Info.reqState = CDC_GET_LINE_CODING;

    phost->StateBkp =  phost->State;
    phost->State = HOST_CLASS_REQUEST;
}