/*****************************Copyright(c)****************************************************************
**                    Guangzhou ZHIYUAN electronics Co.,LTD.
**                                     
**                           http://www.embedtools.com
**
**------File Info-----------------------------------------------------------------------------------------
** File Name:            USBHAL.c
** Latest modified Date: 2007-07-08        
** Latest Version:       V1.0    
** Description:          USBHAL.c, 硬件抽象層,設(shè)置 USB 設(shè)備運行的硬件條件
**                       
**--------------------------------------------------------------------------------------------------------
** Created By:           吳隆穗
** Created date:         2007-10-20    
** Version:              V1.0    
** Descriptions:         初始版本
**
**--------------------------------------------------------------------------------------------------------
** Modified by:          
** Modified date:        
** Version:              
** Description:          
**
**--------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
** Version:
** Description:
**
*********************************************************************************************************/
#include    "USBHostConfig.h"

/*********************************************************************************************************
** Function name:       __usbInitHardware
** Descriptions:        初始化 USB 設(shè)備控制器硬件
** input parameters:    None
** output parameters:   None
** Returned value:      None
*********************************************************************************************************/
void __usbInitHardware (void)
{
    USB_INT32U  uiClkCtrl = (__USB_HOST_CLK_EN | __USB_I2C_CLK_EN | __USB_OTG_CLK_EN | \
                             __USB_DEV_CLK_EN | __USB_AHB_CLK_EN);
      
    if (!(PCONP & 0x80000000)) {
        PCONP |= 0x80000000;                                            /*  給USB控制器提供電源         */
    }
    if ((OTGClkSt & uiClkCtrl) != uiClkCtrl) {
        OTGClkCtrl = uiClkCtrl;                                         /*  配置USB時鐘控制寄存器       */
        while ((OTGClkSt & (uiClkCtrl)) != (uiClkCtrl));       
    }
    __isp1301Write(__OTG_CTL1_CLR, __OTG_CTL1_DP_PULLUP | __OTG_CTL1_DM_PULLUP);
    __isp1301Write(__OTG_CTL1_SET, __OTG_CTL1_DM_PULLDOWN | __OTG_CTL1_DP_PULLDOWN);
    
    OTGStCtrl |= 0x01;                                                  /*  U1 HOST,                    */

#if 0

#if USB_HOST_PORT == 2
    
    /*
     *  OTGStCtrl 最低兩位PORT_FUNC[1,0]含義:
     *  PORT_FUNC[1,0]  = 0x00      U1 = device (OTG), U2 = host
     *  PORT_FUNC[1,0]  = 0x01      U1 = host (OTG), U2 = host
     *  PORT_FUNC[1,0]  = 0x02      reserved
     *  PORT_FUNC[1,0]  = 0x03      U1 = host, U2 = device
     */
    OTGStCtrl = 0x00;                                                   /*  PORT U2為HOST               */
                                                                        /*  ...U1為DEVICE(OTG)          */
    PINSEL0 &= ~(0x03 << 26);                                           /*  P0.13 -- LPC2400 USB HOST   */
    PINSEL0 |= (0x01 << 26);                                            /*  ... U2UP_LED                */
    
    PINSEL0 &= ~(0x03 << 28);                                           /*  P0.14 -- LPC2400 USB HOST   */
    PINSEL0 |= (0x01 << 28);                                            /*  ... /U2HSTEN2               */
       	
 	PINSEL1 &= ~(0x03U << 30);                                          /*  P0.31 -- USB2 D+, USB2 D-   */
    PINSEL1 |= (0x01 << 30);                                            /*  ...不需要設(shè)置               */
  	
    PINSEL0 &= ~(0x03 << 24);                                           /*  P0.13 -- LPC2400 USB HOST   */
    PINSEL0 |= (0x01 << 24);                                            /*  .../USB_PPWRD2              */
    
  	PINSEL3 &= ~(0x03U << 28); 	                                        /*  P1.30 -- LPC2400 USB HOST   */
 	PINSEL3 |= (0x01U << 28);	                                        /*  .../USB_PWRD2               */
 	
 	PINSEL3 &= ~(0x03U << 30);                                          /*  P1.31 -- LPC2400 USB HOST   */
 	PINSEL3 |= (0x01U << 30);	                                        /*  .../USB_OVRCR2              */

#else

    OTGStCtrl = 0x01;                                                   /*  U1 HOST, U2 HOST            */
    
    PINSEL1 = (PINSEL1 & ~(0x0f << 26)) | (0x05 << 26);                 /*  P0.29:USB_D+1, P0.30:USB_D-1*/
    
    PINSEL3 &= ~(0x0F << 24);                                           /*  P1.28 為 USB_SCL1, P1.29    */
    PINSEL3 |= (0x05 << 24);                                            /*  ...為 USB_SDA1              */

    __isp1301EnablePswOE();
    __isp1301SetModeDAT_SE0();
    __isp1301SetSpdSuspCtrl();
    __isp1301SetFullSpeed();
    
#endif

#endif
}

/*********************************************************************************************************
  END FILE
*********************************************************************************************************/