SDHost driver implementation for CC32XX devices.
The SDHost header file should be included in an application as follows:
Refer to SD.h for a complete description of APIs & example of use.
This SDHost driver implementation is designed to operate on a CC32XX SD Host controller using a micro DMA controller.
Note: The driver API's are not thread safe and must not be accessed through multiple threads without the use of mutexes.
When performing disk operations with a word aligned buffer the driver will make transfers using the DMA controller. Alternatively, if the buffer is not aligned, the data will be copied to the internal SD Host controller buffer using a polling method.
When DMA is used, the micro DMA controller generates and IRQ on the perpheral's interrupt vector. This implementation automatically installs a DMA interrupt to service the assigned micro DMA channels.
When DMA is used, it is the responsibility of the application to ensure that read/write buffers reside in memory that is accessible by the DMA.
#include <stdint.h>
#include <ti/drivers/SD.h>
#include <ti/drivers/dpl/HwiP.h>
#include <ti/drivers/dpl/SemaphoreP.h>
#include <ti/drivers/Power.h>
#include <ti/drivers/power/PowerCC32XX.h>
#include <ti/drivers/dma/UDMACC32XX.h>
Go to the source code of this file.
Data Structures | |
struct | SDHostCC32XX_HWAttrsV1 |
struct | SDHostCC32XX_Object |
SDHostCC32XX Object. More... | |
Macros | |
#define | SDHostCC32XX_PIN_06_SDCARD_DATA 0x0805 |
#define | SDHostCC32XX_PIN_07_SDCARD_CLK 0x0806 |
#define | SDHostCC32XX_PIN_08_SDCARD_CMD 0x0807 |
#define | SDHostCC32XX_PIN_01_SDCARD_CLK 0x0600 |
#define | SDHostCC32XX_PIN_02_SDCARD_CMD 0x0601 |
#define | SDHostCC32XX_PIN_64_SDCARD_DATA 0x063f |
Typedefs | |
typedef struct SDHostCC32XX_HWAttrsV1 | SDHostCC32XX_HWAttrsV1 |
typedef struct SDHostCC32XX_Object | SDHostCC32XX_Object |
SDHostCC32XX Object. More... | |
Variables | |
const SD_FxnTable | sdHostCC32XX_fxnTable |
#define SDHostCC32XX_PIN_06_SDCARD_DATA 0x0805 |
#define SDHostCC32XX_PIN_07_SDCARD_CLK 0x0806 |
#define SDHostCC32XX_PIN_08_SDCARD_CMD 0x0807 |
#define SDHostCC32XX_PIN_01_SDCARD_CLK 0x0600 |
#define SDHostCC32XX_PIN_02_SDCARD_CMD 0x0601 |
#define SDHostCC32XX_PIN_64_SDCARD_DATA 0x063f |
typedef struct SDHostCC32XX_HWAttrsV1 SDHostCC32XX_HWAttrsV1 |
typedef struct SDHostCC32XX_Object SDHostCC32XX_Object |
SDHostCC32XX Object.
The application must not access any member variables of this structure!
const SD_FxnTable sdHostCC32XX_fxnTable |