generated from Embedded_Projects/Landzo_K60Z_LwIP
184 lines
6.0 KiB
C
184 lines
6.0 KiB
C
/*
|
|
* Copyright (c) 2016, Freescale Semiconductor, Inc.
|
|
* Copyright 2016-2017 NXP
|
|
*
|
|
* 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 the copyright holder 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 "FreeRTOS.h"
|
|
#include "board.h"
|
|
#include "fsl_host.h"
|
|
#include "fsl_port.h"
|
|
#include "semphr.h"
|
|
#include "task.h"
|
|
|
|
/*******************************************************************************
|
|
* Definitions
|
|
******************************************************************************/
|
|
|
|
/*******************************************************************************
|
|
* Prototypes
|
|
******************************************************************************/
|
|
|
|
/*******************************************************************************
|
|
* Variables
|
|
******************************************************************************/
|
|
static sdhc_handle_t g_sdhcHandle;
|
|
static uint32_t g_sdhcAdmaTable[SDHC_ADMA_TABLE_WORDS];
|
|
static volatile bool g_sdhcTransferSuccessFlag = true;
|
|
|
|
static SemaphoreHandle_t s_cd_semphr = NULL;
|
|
static SemaphoreHandle_t s_transfer_semphr = NULL;
|
|
|
|
/*******************************************************************************
|
|
* Code
|
|
******************************************************************************/
|
|
|
|
static bool DetectCardByHost(void) {
|
|
if (SDHC->PRSSTAT & SDHC_PRSSTAT_CINS_MASK) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/* Card detect. */
|
|
status_t CardInsertDetect(HOST_TYPE *hostBase) {
|
|
if (DetectCardByHost() == true) {
|
|
return kStatus_Success;
|
|
}
|
|
|
|
SDHC_EnableInterruptSignal(SDHC, kSDHC_CardDetectFlag);
|
|
|
|
for (;;) {
|
|
if (xSemaphoreTake(s_cd_semphr, portMAX_DELAY) == pdPASS) {
|
|
if (DetectCardByHost() == true) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Delay some time to make card stable. */
|
|
vTaskDelay(pdMS_TO_TICKS(1000));
|
|
|
|
return kStatus_Success;
|
|
}
|
|
|
|
/* Card detect pin port interrupt handler. */
|
|
void CardInsertDetectHandle(void) {
|
|
BaseType_t task_woken;
|
|
|
|
SDHC_DisableInterruptSignal(SDHC, kSDHC_CardDetectFlag);
|
|
|
|
if (s_cd_semphr == NULL) return;
|
|
|
|
xSemaphoreGiveFromISR(s_cd_semphr, &task_woken);
|
|
|
|
portYIELD_FROM_ISR(task_woken);
|
|
}
|
|
|
|
/* SDHC transfer complete callback function. */
|
|
static void SDHC_TransferCompleteCallback(SDHC_Type *base, sdhc_handle_t *handle, status_t status, void *userData) {
|
|
if (status == kStatus_Success) {
|
|
g_sdhcTransferSuccessFlag = true;
|
|
} else {
|
|
g_sdhcTransferSuccessFlag = false;
|
|
}
|
|
|
|
BaseType_t task_woken;
|
|
|
|
xSemaphoreGiveFromISR(s_transfer_semphr, &task_woken);
|
|
|
|
portYIELD_FROM_ISR(task_woken);
|
|
}
|
|
|
|
/* User defined transfer function. */
|
|
static status_t SDHC_TransferFunction(SDHC_Type *base, sdhc_transfer_t *content) {
|
|
status_t error = kStatus_Success;
|
|
|
|
do {
|
|
error = SDHC_TransferNonBlocking(base, &g_sdhcHandle, g_sdhcAdmaTable, SDHC_ADMA_TABLE_WORDS, content);
|
|
} while (error == kStatus_SDHC_BusyTransferring);
|
|
|
|
if (error != kStatus_Success) {
|
|
return kStatus_Fail;
|
|
}
|
|
|
|
if (xSemaphoreTake(s_transfer_semphr, pdMS_TO_TICKS(1000)) != pdPASS) {
|
|
return kStatus_Fail;
|
|
}
|
|
|
|
if (!g_sdhcTransferSuccessFlag) {
|
|
return kStatus_Fail;
|
|
}
|
|
|
|
return error;
|
|
}
|
|
|
|
status_t HOST_Init(void *host) {
|
|
sdhc_transfer_callback_t sdhcCallback = {0};
|
|
sdhc_host_t *sdhcHost = (sdhc_host_t *)host;
|
|
|
|
NVIC_SetPriority(SDHC_IRQn, 6);
|
|
|
|
/* Initializes SDHC. */
|
|
sdhcHost->config.cardDetectDat3 = true;
|
|
sdhcHost->config.endianMode = SDHC_ENDIAN_MODE;
|
|
sdhcHost->config.dmaMode = SDHC_DMA_MODE;
|
|
sdhcHost->config.readWatermarkLevel = SDHC_READ_WATERMARK_LEVEL;
|
|
sdhcHost->config.writeWatermarkLevel = SDHC_WRITE_WATERMARK_LEVEL;
|
|
SDHC_Init(sdhcHost->base, &(sdhcHost->config));
|
|
|
|
/* Create handle for SDHC driver */
|
|
sdhcCallback.TransferComplete = SDHC_TransferCompleteCallback;
|
|
sdhcCallback.CardInserted = CardInsertDetectHandle;
|
|
sdhcCallback.CardRemoved = CardInsertDetectHandle;
|
|
SDHC_TransferCreateHandle(sdhcHost->base, &g_sdhcHandle, &sdhcCallback, NULL);
|
|
|
|
/* Create transfer complete event. */
|
|
s_cd_semphr = xSemaphoreCreateBinary();
|
|
if (s_cd_semphr == NULL) {
|
|
return kStatus_Fail;
|
|
}
|
|
|
|
s_transfer_semphr = xSemaphoreCreateBinary();
|
|
if (s_transfer_semphr == NULL) {
|
|
return kStatus_Fail;
|
|
}
|
|
|
|
/* Define transfer function. */
|
|
sdhcHost->transfer = SDHC_TransferFunction;
|
|
|
|
return kStatus_Success;
|
|
}
|
|
|
|
void HOST_Deinit(void *host) {
|
|
sdhc_host_t *sdhcHost = (sdhc_host_t *)host;
|
|
SDHC_Deinit(sdhcHost->base);
|
|
vSemaphoreDelete(s_cd_semphr);
|
|
vSemaphoreDelete(s_transfer_semphr);
|
|
}
|