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| Original file line number | Diff line number | Diff line change |
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| // This file is part of the CircuitPython project: https://circuitpython.org | ||
| // | ||
| // SPDX-FileCopyrightText: Copyright (c) 2024 Jacob Rigby | ||
| // | ||
| // SPDX-License-Identifier: MIT | ||
|
|
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| #include <stdbool.h> | ||
| #include "esp_err.h" | ||
|
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| //#include "ports/espressif/esp-idf/components/esp_driver_sdmmc/include/driver/sdmmc_host.h" | ||
| #include "driver/sdmmc_host.h" | ||
| #include "ports/espressif/esp-idf/components/sdmmc/include/sdmmc_cmd.h" | ||
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|
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| #include "shared-bindings/microcontroller/Pin.h" | ||
| #include "shared-bindings/util.h" | ||
| #include "shared-bindings/sdioio/SDCard.h" | ||
| #include "py/mperrno.h" | ||
| #include "py/runtime.h" | ||
|
|
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| #include "esp_log.h" | ||
| static const char *TAG = "SDCard.c"; | ||
|
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| static bool sdio_host_init = false; | ||
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| static void common_hal_sdioio_sdcard_check_for_deinit(sdioio_sdcard_obj_t *self) { | ||
| if (common_hal_sdioio_sdcard_deinited(self)) { | ||
| raise_deinited_error(); | ||
| } | ||
| } | ||
|
|
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| static int check_pins(const mcu_pin_obj_t *clock, const mcu_pin_obj_t *command, const uint8_t num_data, const mcu_pin_obj_t **data) { | ||
| if (CONFIG_SOC_SDMMC_USE_GPIO_MATRIX) { | ||
| // ESP32-S3 and P4 can use any pin for any SDMMC func in either slot | ||
| // Default to SLOT_1 for SD cards | ||
| ESP_LOGI(TAG, "Using chip with CONFIG_SOC_SDMMC_USE_GPIO_MATRIX"); | ||
| return SDMMC_HOST_SLOT_1; | ||
| } | ||
| if (command->number == GPIO_NUM_11 && clock->number == GPIO_NUM_6 && data[0]->number == GPIO_NUM_7) { | ||
| // Might be slot 0 | ||
| if (num_data == 1 || (num_data == 4 && data[1]->number == GPIO_NUM_8 && data[2]->number == GPIO_NUM_9 && data[3]->number == GPIO_NUM_10)) { | ||
| return SDMMC_HOST_SLOT_0; | ||
| } | ||
| } else if (command->number == GPIO_NUM_15 && clock->number == GPIO_NUM_14 && data[0]->number == 2) { | ||
| // Might be slot 1 | ||
| if (num_data == 1 || (num_data == 4 && data[1]->number == GPIO_NUM_4 && data[2]->number == GPIO_NUM_12 && data[3]->number == GPIO_NUM_13)) { | ||
| return SDMMC_HOST_SLOT_1; | ||
| } | ||
| } | ||
| return -1; | ||
| } | ||
|
|
||
| void common_hal_sdioio_sdcard_construct(sdioio_sdcard_obj_t *self, | ||
| const mcu_pin_obj_t *clock, const mcu_pin_obj_t *command, | ||
| uint8_t num_data, const mcu_pin_obj_t **data, uint32_t frequency) { | ||
| if (num_data != 4 && num_data != 1) { | ||
| mp_raise_ValueError(MP_ERROR_TEXT("SDIO: cards have either 1 or 4 data lines")); | ||
| } | ||
|
|
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| self->num_data = num_data; | ||
| int sd_slot = check_pins(clock, command, num_data, data); | ||
| if (sd_slot != SDMMC_HOST_SLOT_0 && sd_slot != SDMMC_HOST_SLOT_1) { | ||
| // Bad pin combo | ||
| raise_ValueError_invalid_pins(); | ||
| } | ||
|
|
||
| if (frequency > 40000000) { | ||
| // Higher than max 40Mhz frequency | ||
| mp_raise_ValueError(MP_ERROR_TEXT("SDIO: requested frequency out of range")); | ||
| } | ||
|
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| ESP_LOGI(TAG, "Using slot %d", sd_slot); | ||
| self->slot = (uint8_t)sd_slot; | ||
| esp_err_t err = ESP_OK; | ||
|
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| sdmmc_host_t host = SDMMC_HOST_DEFAULT(); | ||
| host.max_freq_khz = frequency / 1000; | ||
|
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| sdmmc_slot_config_t slot_config = SDMMC_SLOT_CONFIG_DEFAULT(); | ||
| slot_config.width = 1; | ||
| slot_config.clk = clock->number; | ||
| claim_pin(clock); | ||
| self->clock = clock->number; | ||
| slot_config.cmd = command->number; | ||
| claim_pin(command); | ||
| self->command = command->number; | ||
| slot_config.d0 = data[0]->number; | ||
| self->data[0] = data[0]->number; | ||
| claim_pin(data[0]); | ||
| if (num_data == 4) { | ||
| slot_config.width = 4; | ||
| slot_config.d1 = data[1]->number; | ||
| claim_pin(data[1]); | ||
| self->data[1] = data[1]->number; | ||
| slot_config.d2 = data[2]->number; | ||
| claim_pin(data[2]); | ||
| self->data[2] = data[2]->number; | ||
| slot_config.d3 = data[3]->number; | ||
| claim_pin(data[3]); | ||
| self->data[3] = data[3]->number; | ||
| } | ||
|
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||
| ESP_LOGI(TAG, "slot_config:\nwidth: %d, clk: %d, cmd: %d\nd0: %d, d1: %d, d2: %d, d3: %d", | ||
| slot_config.width, slot_config.clk, slot_config.cmd, | ||
| slot_config.d0, slot_config.d1, slot_config.d2, slot_config.d3); | ||
|
|
||
| if (!sdio_host_init) { | ||
| err = sdmmc_host_init(); | ||
| if (err != ESP_OK) { | ||
| mp_raise_OSError_msg_varg(MP_ERROR_TEXT("SDIO Init Error %x"), err); | ||
| } | ||
| // sdio_host_init = true; | ||
| } | ||
| err = sdmmc_host_init_slot(sd_slot, &slot_config); | ||
| if (err != ESP_OK) { | ||
| ESP_LOGW(TAG, "Failed to initialize SDMMC slot: %x", err); | ||
| mp_raise_OSError_msg_varg(MP_ERROR_TEXT("SDIO Init Error %x"), err); | ||
| } | ||
| // sdmmc_card_t card; | ||
| // self->card = malloc(sizeof(sdmmc_card_t)); | ||
| err = sdmmc_card_init(&host, &self->card); | ||
| if (err != ESP_OK) { | ||
| ESP_LOGW(TAG, "Failed to initialize SDMMC card: %x", err); | ||
| mp_raise_OSError_msg_varg(MP_ERROR_TEXT("SDIO Init Error %x"), err); | ||
| } | ||
|
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| common_hal_sdioio_sdcard_check_for_deinit(self); | ||
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| ESP_LOGI(TAG, "Initialized SD card with ID %d:%d-%s", | ||
| self->card.cid.mfg_id, self->card.cid.oem_id, self->card.cid.name); | ||
|
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| ESP_LOGI(TAG, "Number of sectors: %d with sector_size: %d", | ||
| self->card.csd.capacity, self->card.csd.sector_size); | ||
|
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| self->frequency = self->card.real_freq_khz; | ||
| ESP_LOGI(TAG, "Real frequency is %lu", self->frequency); | ||
| self->capacity = self->card.csd.capacity; // Reported number of sectors | ||
| ESP_LOGI(TAG, "Reported capacity is %lu", self->capacity); | ||
|
|
||
| return; | ||
| } | ||
|
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||
| uint32_t common_hal_sdioio_sdcard_get_count(sdioio_sdcard_obj_t *self) { | ||
| return self->capacity; | ||
| } | ||
|
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| uint32_t common_hal_sdioio_sdcard_get_frequency(sdioio_sdcard_obj_t *self) { | ||
| return self->frequency; | ||
| } | ||
|
|
||
| uint8_t common_hal_sdioio_sdcard_get_width(sdioio_sdcard_obj_t *self) { | ||
| return self->num_data; | ||
| } | ||
|
|
||
| static void check_whole_block(mp_buffer_info_t *bufinfo, int sector_size) { | ||
| if (bufinfo->len % sector_size) { | ||
| mp_raise_ValueError_varg(MP_ERROR_TEXT("Buffer must be a multiple of %d bytes"), sector_size); | ||
| } | ||
| } | ||
|
|
||
| int common_hal_sdioio_sdcard_writeblocks(sdioio_sdcard_obj_t *self, uint32_t start_block, mp_buffer_info_t *bufinfo) { | ||
| common_hal_sdioio_sdcard_check_for_deinit(self); | ||
| check_whole_block(bufinfo, self->card.csd.sector_size); | ||
| esp_err_t err; | ||
| ESP_LOGI(TAG, "in common_hal_sdioio_sdcard_writeblocks"); | ||
| // err = sdmmc_io_write_blocks(&self->card, 1, start_block, bufinfo->buf, bufinfo->len); | ||
| err = sdmmc_write_sectors(&self->card, bufinfo->buf, start_block, bufinfo->len / self->card.csd.sector_size); | ||
| if (err != ESP_OK) { | ||
| ESP_LOGW(TAG, "Failed to write blocks with err 0x%X", err); | ||
| } | ||
| return 0; | ||
| } | ||
|
|
||
| int common_hal_sdioio_sdcard_readblocks(sdioio_sdcard_obj_t *self, uint32_t start_block, mp_buffer_info_t *bufinfo) { | ||
| common_hal_sdioio_sdcard_check_for_deinit(self); | ||
| check_whole_block(bufinfo, self->card.csd.sector_size); | ||
| esp_err_t err; | ||
| ESP_LOGI(TAG, "in common_hal_sdioio_sdcard_readblocks"); | ||
| // err = sdmmc_io_read_blocks(&self->card, 1, start_block, bufinfo->buf, bufinfo->len); | ||
| err = sdmmc_read_sectors(&self->card, bufinfo->buf, start_block, bufinfo->len / self->card.csd.sector_size); | ||
| if (err != ESP_OK) { | ||
| ESP_LOGW(TAG, "Failed to read blocks with err 0x%X", err); | ||
| } | ||
| return 0; | ||
| } | ||
|
|
||
| bool common_hal_sdioio_sdcard_configure(sdioio_sdcard_obj_t *self, uint32_t frequency, uint8_t bits) { | ||
| return true; | ||
| } | ||
|
|
||
| bool common_hal_sdioio_sdcard_deinited(sdioio_sdcard_obj_t *self) { | ||
| return self->command == COMMON_HAL_MCU_NO_PIN; | ||
| } | ||
|
|
||
| void common_hal_sdioio_sdcard_deinit(sdioio_sdcard_obj_t *self) { | ||
| if (common_hal_sdioio_sdcard_deinited(self)) { | ||
| return; | ||
| } | ||
| sdmmc_host_deinit(); | ||
| reset_pin_number(self->command); | ||
| self->command = COMMON_HAL_MCU_NO_PIN; | ||
| reset_pin_number(self->clock); | ||
| self->clock = COMMON_HAL_MCU_NO_PIN; | ||
| reset_pin_number(self->data[0]); | ||
| self->data[0] = COMMON_HAL_MCU_NO_PIN; | ||
| if (self->num_data == 4) { | ||
| reset_pin_number(self->data[1]); | ||
| self->data[1] = COMMON_HAL_MCU_NO_PIN; | ||
| reset_pin_number(self->data[2]); | ||
| self->data[2] = COMMON_HAL_MCU_NO_PIN; | ||
| reset_pin_number(self->data[3]); | ||
| self->data[3] = COMMON_HAL_MCU_NO_PIN; | ||
| } | ||
| return; | ||
| } | ||
|
|
||
| void common_hal_sdioio_sdcard_never_reset(sdioio_sdcard_obj_t *self) { | ||
| if (common_hal_sdioio_sdcard_deinited(self)) { | ||
| return; | ||
| } | ||
| } | ||
|
|
||
| void sdioio_reset() { | ||
| return; | ||
| } |
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