diff options
Diffstat (limited to 'stm/sdcard.c')
| -rw-r--r-- | stm/sdcard.c | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/stm/sdcard.c b/stm/sdcard.c deleted file mode 100644 index ed79b855cc..0000000000 --- a/stm/sdcard.c +++ /dev/null @@ -1,211 +0,0 @@ -// TODO -// make it work with DMA - -#include <stdio.h> -//#include "stm32f4xx_sdio.h" -#include "stm324x7i_eval_sdio_sd.h" -#include "misc.h" -#include "systick.h" -#include "mpconfig.h" -#include "qstr.h" -#include "obj.h" -#include "runtime.h" -#include "sdcard.h" - -#if 0 -#define BLOCK_SIZE 512 /* Block Size in Bytes */ - -uint8_t aBuffer_Block_Rx[BLOCK_SIZE]; - -void sdio_init(void) { - SD_Error error = SD_Init(); - printf("Init: %x\n", error); - uint8_t det = SD_Detect(); - printf("Detc: %x\n", det); - - if (!det) { - printf("no card detected\n"); - SD_PowerOFF(); - SD_DeInit(); - return; - } - - // read a block! - error = SD_ReadBlock(aBuffer_Block_Rx, 512, BLOCK_SIZE); - printf("ReadBlock: %d\n", error); - - /* - // Check if the Transfer is finished - error = SD_WaitReadOperation(); - printf("WaitReadOp: %d\n", error); - */ - - uint32_t stc = sys_tick_counter; - while (SD_GetStatus() != SD_TRANSFER_OK) { - if (sys_tick_has_passed(stc, 2000)) { - printf("timeout waiting for read to finish\n"); - break; - } - } - printf("done!!\n"); - - printf("%.16s", aBuffer_Block_Rx); - - /* - snprintf((char*)aBuffer_Block_Rx, BLOCK_SIZE, "Here is some data back for you!\nBLOCK_SIZE=%d\n", BLOCK_SIZE); - error = SD_WriteBlock(aBuffer_Block_Rx, 512, BLOCK_SIZE); - printf("WriteBlock: %d\n", error); - - while (SD_GetStatus() != SD_TRANSFER_OK) { - } - printf("done writing!\n"); - */ - - SD_PowerOFF(); - SD_DeInit(); -} -#endif - -void sdcard_init(void) { - // init the SD card detect pin - SD_LowLevel_Init_Detect(); -} - -bool sdcard_is_present(void) { - return SD_Detect() != 0; -} - -bool sdcard_power_on(void) { - if (!SD_Detect()) { - return false; - } - - SD_Error status = SD_Init(); - if (status != SD_OK) { - SD_PowerOFF(); - SD_DeInit(); - return false; - } - - return true; -} - -void sdcard_power_off(void) { - SD_PowerOFF(); - SD_DeInit(); -} - -uint64_t sdcard_get_capacity_in_bytes(void) { - SD_CardInfo SDCardInfo; - SD_GetCardInfo(&SDCardInfo); - return SDCardInfo.CardCapacity; -} - -bool sdcard_read_block(uint8_t *dest, uint32_t block_num) { - // TODO return error if not powered on - - SD_Error status; - - status = SD_ReadBlock(dest, block_num * SDCARD_BLOCK_SIZE, SDCARD_BLOCK_SIZE); - if (status != SD_OK) { - return false; - } - -#ifdef SD_DMA_MODE - // wait for DMA transfer to finish - status = SD_WaitReadOperation(); - if (status != SD_OK) { - return false; - } -#endif - - // wait for SD controller to finish - uint32_t stc = sys_tick_counter; - while (SD_GetStatus() != SD_TRANSFER_OK) { - if (sys_tick_has_passed(stc, 5000)) { - //printf("[ERROR] timeout waiting for SD card read to finish\n"); - return false; - } - } - - return true; -} - -bool sdcard_write_block(const uint8_t *src, uint32_t block_num) { - // TODO return error if not powered on - - SD_Error status; - - status = SD_WriteBlock((uint8_t*)src, block_num * SDCARD_BLOCK_SIZE, SDCARD_BLOCK_SIZE); - if (status != SD_OK) { - return false; - } - -#ifdef SD_DMA_MODE - // wait for DMA transfer to finish - status = SD_WaitReadOperation(); - if (status != SD_OK) { - return false; - } -#endif - - // wait for SD controller to finish - uint32_t stc = sys_tick_counter; - while (SD_GetStatus() != SD_TRANSFER_OK) { - if (sys_tick_has_passed(stc, 5000)) { - //printf("[ERROR] timeout waiting for SD card write to finish\n"); - return false; - } - } - - return true; -} - -/******************************************************************************/ -// Micro Python bindings - -static mp_obj_t sd_present(mp_obj_t self) { - return MP_BOOL(sdcard_is_present()); -} - -static MP_DEFINE_CONST_FUN_OBJ_1(sd_present_obj, sd_present); - -static mp_obj_t sd_power(mp_obj_t self, mp_obj_t state) { - bool result; - if (mp_obj_is_true(state)) { - result = sdcard_power_on(); - } else { - sdcard_power_off(); - result = true; - } - return MP_BOOL(result); -} - -static MP_DEFINE_CONST_FUN_OBJ_2(sd_power_obj, sd_power); - -static mp_obj_t sd_read(mp_obj_t self, mp_obj_t block_num) { - uint8_t *dest = m_new(uint8_t, SDCARD_BLOCK_SIZE); - if (!sdcard_read_block(dest, mp_obj_get_int(block_num))) { - m_free(dest, SDCARD_BLOCK_SIZE); - return mp_const_none; - } - return mp_obj_new_bytearray_by_ref(SDCARD_BLOCK_SIZE, dest); -} - -static MP_DEFINE_CONST_FUN_OBJ_2(sd_read_obj, sd_read); - -STATIC const mp_map_elem_t sdcard_locals_dict_table[] = { - { MP_OBJ_NEW_QSTR(MP_QSTR_present), (mp_obj_t)&sd_present_obj }, - { MP_OBJ_NEW_QSTR(MP_QSTR_power), (mp_obj_t)&sd_power_obj }, - { MP_OBJ_NEW_QSTR(MP_QSTR_read), (mp_obj_t)&sd_read_obj }, -}; - -STATIC MP_DEFINE_CONST_DICT(sdcard_locals_dict, sdcard_locals_dict_table); - -static const mp_obj_type_t sdcard_type = { - { &mp_type_type }, - .name = MP_QSTR_SDcard, - .locals_dict = (mp_obj_t)&sdcard_locals_dict, -}; - -const mp_obj_base_t pyb_sdcard_obj = {&sdcard_type}; |