112 lines
3.6 KiB
C
112 lines
3.6 KiB
C
/*
|
|
* This file is part of the MicroPython project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2021 Philipp Ebensberger
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#ifndef MICROPY_INCLUDED_MIMXRT_SDCARD_H
|
|
#define MICROPY_INCLUDED_MIMXRT_SDCARD_H
|
|
|
|
#include "modmachine.h"
|
|
#include "pin.h"
|
|
#include "fsl_usdhc.h"
|
|
|
|
// ---
|
|
// SD Card public defines
|
|
// ---
|
|
#define SDCARD_DEFAULT_BLOCK_SIZE (512U)
|
|
#define SDCARD_CLOCK_400KHZ (400000U)
|
|
#define SDCARD_CLOCK_25MHZ (25000000U)
|
|
#define SDCARD_CLOCK_50MHZ (50000000U)
|
|
|
|
typedef struct _mimxrt_sdcard_pin_t {
|
|
const machine_pin_obj_t *pin;
|
|
uint8_t af_idx;
|
|
} mimxrt_sdcard_pin_t;
|
|
|
|
typedef struct _mimxrt_sdcard_obj_pins_t {
|
|
mimxrt_sdcard_pin_t cmd;
|
|
mimxrt_sdcard_pin_t clk;
|
|
mimxrt_sdcard_pin_t cd_b;
|
|
mimxrt_sdcard_pin_t data0;
|
|
mimxrt_sdcard_pin_t data1;
|
|
mimxrt_sdcard_pin_t data2;
|
|
mimxrt_sdcard_pin_t data3;
|
|
} mimxrt_sdcard_obj_pins_t;
|
|
|
|
typedef volatile struct _mimxrt_sdcard_status_obj_t {
|
|
bool initialized;
|
|
bool inserted;
|
|
} mimxrt_sdcard_status_obj_t;
|
|
|
|
typedef struct _mimxrt_sdcard_obj_t {
|
|
mp_obj_base_t base;
|
|
USDHC_Type *usdhc_inst;
|
|
usdhc_handle_t handle;
|
|
mimxrt_sdcard_status_obj_t *state;
|
|
uint16_t block_len;
|
|
uint32_t base_clk;
|
|
uint32_t bus_clk;
|
|
uint32_t rca;
|
|
uint32_t block_count;
|
|
uint32_t status;
|
|
uint32_t oper_cond;
|
|
const mimxrt_sdcard_obj_pins_t *pins;
|
|
} mimxrt_sdcard_obj_t;
|
|
|
|
// ---
|
|
// SD Card object instances
|
|
// ---
|
|
#if MICROPY_PY_MACHINE_SDCARD && (defined MICROPY_USDHC1 || defined MICROPY_USDHC2)
|
|
enum {
|
|
#if defined MICROPY_USDHC1 && USDHC1_AVAIL
|
|
SDCARD_OBJ_USDHC1_IDX,
|
|
#endif
|
|
#if defined MICROPY_USDHC2 && USDHC2_AVAIL
|
|
SDCARD_OBJ_USDHC2_IDX,
|
|
#endif
|
|
SDCARD_OBJ_USDHC_N
|
|
};
|
|
#endif
|
|
extern mimxrt_sdcard_obj_t mimxrt_sdcard_objs[SDCARD_OBJ_USDHC_N];
|
|
|
|
// ---
|
|
// SD Card functions
|
|
// ---
|
|
void sdcard_init(mimxrt_sdcard_obj_t *card, uint32_t base_clk);
|
|
void sdcard_deinit(mimxrt_sdcard_obj_t *card);
|
|
void sdcard_init_pins(mimxrt_sdcard_obj_t *card);
|
|
bool sdcard_read(mimxrt_sdcard_obj_t *card, uint8_t *buffer, uint32_t block_num, uint32_t block_count);
|
|
bool sdcard_write(mimxrt_sdcard_obj_t *card, uint8_t *buffer, uint32_t block_num, uint32_t block_count);
|
|
bool sdcard_set_active(mimxrt_sdcard_obj_t *card);
|
|
bool sdcard_volt_validation(mimxrt_sdcard_obj_t *card);
|
|
bool sdcard_power_on(mimxrt_sdcard_obj_t *self);
|
|
bool sdcard_power_off(mimxrt_sdcard_obj_t *self);
|
|
bool sdcard_detect(mimxrt_sdcard_obj_t *self);
|
|
|
|
static inline bool sdcard_state_initialized(mimxrt_sdcard_obj_t *card) {
|
|
return card->state->initialized;
|
|
}
|
|
|
|
#endif // MICROPY_INCLUDED_MIMXRT_SDCARD_H
|