/* * Copyright (c) 2013 - 2014, Freescale Semiconductor, Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * o Redistributions of source code must retain the above copyright notice, this list * of conditions and the following disclaimer. * * o 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. * * o Neither the name of Freescale Semiconductor, Inc. nor the names of its * contributors may be used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS 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. */ #include "fsl_sdhc_hal.h" #ifndef MBED_NO_SDHC /*FUNCTION**************************************************************** * * Function Name: SDHC_HAL_Init * Description: Initialize sdhc hal * *END*********************************************************************/ void SDHC_HAL_Init(uint32_t baseAddr) { SDHC_HAL_SetSdClock(baseAddr, false); SDHC_HAL_SetExternalDmaRequest(baseAddr, false); SDHC_HAL_SetIntState(baseAddr, false, (uint32_t)-1); SDHC_HAL_SetIntSignal(baseAddr, false, (uint32_t)-1); } /*FUNCTION**************************************************************** * * Function Name: SDHC_HAL_SetIntSignal * Description: Enable specified interrupts * *END*********************************************************************/ void SDHC_HAL_SetIntSignal(uint32_t baseAddr, bool enable, uint32_t mask) { if (enable) { HW_SDHC_IRQSIGEN_SET(baseAddr, mask); } else { HW_SDHC_IRQSIGEN_CLR(baseAddr, mask); } } /*FUNCTION**************************************************************** * * Function Name: SDHC_HAL_SetIntState * Description: Enable specified interrupts' state * *END*********************************************************************/ void SDHC_HAL_SetIntState(uint32_t baseAddr, bool enable, uint32_t mask) { if (enable) { HW_SDHC_IRQSTATEN_SET(baseAddr, mask); } else { HW_SDHC_IRQSTATEN_CLR(baseAddr, mask); } } /*FUNCTION**************************************************************** * * Function Name: SDHC_HAL_GetResponse * Description: get command response * *END*********************************************************************/ uint32_t SDHC_HAL_GetResponse(uint32_t baseAddr, uint32_t index) { uint32_t ret = 0; assert(index < 4); switch(index) { case 0: ret = BR_SDHC_CMDRSP0_CMDRSP0(baseAddr); break; case 1: ret = BR_SDHC_CMDRSP1_CMDRSP1(baseAddr); break; case 2: ret = BR_SDHC_CMDRSP2_CMDRSP2(baseAddr); break; case 3: ret = BR_SDHC_CMDRSP3_CMDRSP3(baseAddr); break; default: break; } return ret; } /*FUNCTION**************************************************************** * * Function Name: SDHC_HAL_InitCard * Description: Initialize card by sending 80 clocks to card * *END*********************************************************************/ uint32_t SDHC_HAL_InitCard(uint32_t baseAddr, uint32_t timeout) { assert(timeout); BW_SDHC_SYSCTL_INITA(baseAddr, 1); while((!BR_SDHC_SYSCTL_INITA(baseAddr))) { if (!timeout) { break; } timeout--; } return (!timeout); } /*FUNCTION**************************************************************** * * Function Name: SDHC_HAL_Reset * Description: Perform different kinds of reset * *END*********************************************************************/ uint32_t SDHC_HAL_Reset(uint32_t baseAddr, uint32_t type, uint32_t timeout) { uint32_t mask; assert(timeout); mask = type & (BM_SDHC_SYSCTL_RSTA | BM_SDHC_SYSCTL_RSTC | BM_SDHC_SYSCTL_RSTD); HW_SDHC_SYSCTL_SET(baseAddr, mask); while (!(HW_SDHC_SYSCTL_RD(baseAddr) & mask)) { if (!timeout) { break; } timeout--; } return (!timeout); } #endif /* MBED_NO_SDHC */ /************************************************************************************************* * EOF ************************************************************************************************/