msdc_custom.c

最新MTK手机软件源码

/*****************************************************************************
*  Copyright Statement:
*  --------------------
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*  herein is confidential. The software may not be copied and the information
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*
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*  THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
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/*****************************************************************************
 *
 * Filename:
 * ---------
 *    msdc_custom.c
 *
 * Project:
 * --------
 *   Maui_Software
 *
 * Description:
 * ------------
 *   This file implements msdc customer support
 *
 * Author:
 * -------
 * -------
 *
 *============================================================================
 *             HISTORY
 * Below this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
 *------------------------------------------------------------------------------
 * removed!
 * removed!
 * removed!
 *
 * removed!
 * removed!
 * removed!
 ****************************************************************************/
#include "drv_comm.h"
#include "msdc_def.h"

// it only apply to the SD card io control
static const msdc_io_ctrl_struct msdc_io_ctrl_sd_custom = 
{
	MSDC_ODC_8MA,	// driving capacity of CMD/BS and SCLK
	MSDC_ODC_2MA,	// driving capacity of data lines
	MSDC_ODC_SLEW_FAST, // slew rate of CMD/BS and SCLK
	MSDC_ODC_SLEW_FAST // slew rate of data lines
};

kal_uint8 MSDC_GetIOCtrlParam(void)
{
	kal_uint8 reg = 0;
	
	reg = (msdc_io_ctrl_sd_custom.dat_slew << 7) | (msdc_io_ctrl_sd_custom.cmd_clk_slew << 6) 
			|(msdc_io_ctrl_sd_custom.dat_odc<<3)|(msdc_io_ctrl_sd_custom.cmd_clk_odc);
	return reg;
}