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stm32: Add support for MMC driver, exposed via pyb.MMCard class.

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Enable it via MICROPY_HW_ENABLE_MMCARD.
This commit is contained in:
Damien George 2019-04-01 15:55:04 +11:00
parent 9670b26526
commit 7ce2a08231
6 changed files with 358 additions and 82 deletions
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1
ports/stm32/Makefile
View File

@ -329,6 +329,7 @@ endif
ifeq ($(MCU_SERIES),$(filter $(MCU_SERIES),f4 f7 h7))
SRC_HAL += $(addprefix $(HAL_DIR)/Src/stm32$(MCU_SERIES)xx_,\
hal_mmc.c \
hal_sdram.c \
hal_dma_ex.c \
hal_dcmi.c \

14
ports/stm32/dma.c
View File

@ -39,6 +39,8 @@
#define DMA_IDLE_TICK_MAX (8) // 8*8 = 64 msec
#define DMA_IDLE_TICK(tick) (((tick) & ~(SYSTICK_DISPATCH_NUM_SLOTS - 1) & DMA_SYSTICK_MASK) == 0)
#define ENABLE_SDIO (MICROPY_HW_ENABLE_SDCARD || MICROPY_HW_ENABLE_MMCARD)
typedef enum {
dma_id_not_defined=-1,
dma_id_0,
@ -100,7 +102,7 @@ static const DMA_InitTypeDef dma_init_struct_spi_i2c = {
#endif
};
#if MICROPY_HW_ENABLE_SDCARD && !defined(STM32H7)
#if ENABLE_SDIO && !defined(STM32H7)
// Parameters to dma_init() for SDIO tx and rx.
static const DMA_InitTypeDef dma_init_struct_sdio = {
#if defined(STM32F4) || defined(STM32F7)
@ -256,7 +258,7 @@ const dma_descr_t dma_I2C_1_TX = { DMA1_Stream6, DMA_CHANNEL_1, dma_id_6, &dma
*/
// DMA2 streams
#if defined(STM32F7) && defined(SDMMC2) && MICROPY_HW_ENABLE_SDCARD
#if defined(STM32F7) && defined(SDMMC2) && ENABLE_SDIO
const dma_descr_t dma_SDMMC_2 = { DMA2_Stream0, DMA_CHANNEL_11, dma_id_8, &dma_init_struct_sdio };
#endif
#if MICROPY_HW_ENABLE_DCMI
@ -264,7 +266,7 @@ const dma_descr_t dma_DCMI_0 = { DMA2_Stream1, DMA_CHANNEL_1, dma_id_9, &dma_in
#endif
const dma_descr_t dma_SPI_1_RX = { DMA2_Stream2, DMA_CHANNEL_3, dma_id_10, &dma_init_struct_spi_i2c };
const dma_descr_t dma_SPI_5_RX = { DMA2_Stream3, DMA_CHANNEL_2, dma_id_11, &dma_init_struct_spi_i2c };
#if MICROPY_HW_ENABLE_SDCARD
#if ENABLE_SDIO
const dma_descr_t dma_SDIO_0 = { DMA2_Stream3, DMA_CHANNEL_4, dma_id_11, &dma_init_struct_sdio };
#endif
const dma_descr_t dma_SPI_4_RX = { DMA2_Stream3, DMA_CHANNEL_5, dma_id_11, &dma_init_struct_spi_i2c };
@ -272,11 +274,11 @@ const dma_descr_t dma_SPI_5_TX = { DMA2_Stream4, DMA_CHANNEL_2, dma_id_12, &dma
const dma_descr_t dma_SPI_4_TX = { DMA2_Stream4, DMA_CHANNEL_5, dma_id_12, &dma_init_struct_spi_i2c };
const dma_descr_t dma_SPI_6_TX = { DMA2_Stream5, DMA_CHANNEL_1, dma_id_13, &dma_init_struct_spi_i2c };
const dma_descr_t dma_SPI_1_TX = { DMA2_Stream5, DMA_CHANNEL_3, dma_id_13, &dma_init_struct_spi_i2c };
//#if defined(STM32F7) && defined(SDMMC2) && MICROPY_HW_ENABLE_SDCARD
//#if defined(STM32F7) && defined(SDMMC2) && ENABLE_SDIO
//const dma_descr_t dma_SDMMC_2 = { DMA2_Stream5, DMA_CHANNEL_11, dma_id_13, &dma_init_struct_sdio };
//#endif
const dma_descr_t dma_SPI_6_RX = { DMA2_Stream6, DMA_CHANNEL_1, dma_id_14, &dma_init_struct_spi_i2c };
//#if MICROPY_HW_ENABLE_SDCARD
//#if ENABLE_SDIO
//const dma_descr_t dma_SDIO_0 = { DMA2_Stream6, DMA_CHANNEL_4, dma_id_14, &dma_init_struct_sdio };
//#endif
/* not preferred streams
@ -352,7 +354,7 @@ const dma_descr_t dma_ADC_2_RX = { DMA2_Channel4, DMA_REQUEST_0, dma_id_10, NUL
const dma_descr_t dma_DAC_1_TX = { DMA2_Channel4, DMA_REQUEST_3, dma_id_10, &dma_init_struct_dac };
const dma_descr_t dma_SPI_1_TX = { DMA2_Channel4, DMA_REQUEST_4, dma_id_10, &dma_init_struct_spi_i2c };
*/
#if MICROPY_HW_ENABLE_SDCARD
#if ENABLE_SDIO
const dma_descr_t dma_SDIO_0 = { DMA2_Channel4, DMA_REQUEST_7, dma_id_10, &dma_init_struct_sdio };
#endif
/* not preferred streams

3
ports/stm32/modpyb.c
View File

@ -200,6 +200,9 @@ STATIC const mp_rom_map_elem_t pyb_module_globals_table[] = {
#endif
{ MP_ROM_QSTR(MP_QSTR_SDCard), MP_ROM_PTR(&pyb_sdcard_type) },
#endif
#if MICROPY_HW_ENABLE_MMCARD
{ MP_ROM_QSTR(MP_QSTR_MMCard), MP_ROM_PTR(&pyb_mmcard_type) },
#endif
#if defined(MICROPY_HW_LED1)
{ MP_ROM_QSTR(MP_QSTR_LED), MP_ROM_PTR(&pyb_led_type) },

5
ports/stm32/mpconfigboard_common.h
View File

@ -97,6 +97,11 @@
#define MICROPY_HW_ENABLE_SDCARD (0)
#endif
// Whether to enable the MMC interface, exposed as pyb.MMCard
#ifndef MICROPY_HW_ENABLE_MMCARD
#define MICROPY_HW_ENABLE_MMCARD (0)
#endif
// Whether to automatically mount (and boot from) the SD card if it's present
#ifndef MICROPY_HW_SDCARD_MOUNT_AT_BOOT
#define MICROPY_HW_SDCARD_MOUNT_AT_BOOT (MICROPY_HW_ENABLE_SDCARD)

416
ports/stm32/sdcard.c
View File

@ -3,7 +3,7 @@
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 Damien P. George
* Copyright (c) 2013-2019 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
@ -38,7 +38,7 @@
#include "dma.h"
#include "irq.h"
#if MICROPY_HW_ENABLE_SDCARD
#if MICROPY_HW_ENABLE_SDCARD || MICROPY_HW_ENABLE_MMCARD
#if defined(STM32F7) || defined(STM32H7) || defined(STM32L4)
@ -125,14 +125,25 @@
#endif
#define PYB_SDMMC_FLAG_SD (0x01)
#define PYB_SDMMC_FLAG_MMC (0x02)
#define PYB_SDMMC_FLAG_ACTIVE (0x04)
static uint8_t pyb_sdmmc_flags;
// TODO: I think that as an optimization, we can allocate these dynamically
// if an sd card is detected. This will save approx 260 bytes of RAM
// when no sdcard was being used.
static SD_HandleTypeDef sd_handle;
static union {
SD_HandleTypeDef sd;
#if MICROPY_HW_ENABLE_MMCARD
MMC_HandleTypeDef mmc;
#endif
} sdmmc_handle;
void sdcard_init(void) {
// invalidate the sd_handle
sd_handle.Instance = NULL;
// Set SD/MMC to no mode and inactive
pyb_sdmmc_flags = 0;
// configure SD GPIO
// we do this here an not in HAL_SD_MspInit because it apparently
@ -163,7 +174,7 @@ void sdcard_init(void) {
mp_hal_pin_config(MICROPY_HW_SDCARD_DETECT_PIN, MP_HAL_PIN_MODE_INPUT, MICROPY_HW_SDCARD_DETECT_PULL, 0);
}
void HAL_SD_MspInit(SD_HandleTypeDef *hsd) {
STATIC void sdmmc_msp_init(void) {
// enable SDIO clock
SDMMC_CLK_ENABLE();
@ -185,76 +196,192 @@ void HAL_SD_MspInit(SD_HandleTypeDef *hsd) {
// GPIO have already been initialised by sdcard_init
}
void HAL_SD_MspDeInit(SD_HandleTypeDef *hsd) {
void sdmmc_msp_deinit(void) {
HAL_NVIC_DisableIRQ(SDMMC_IRQn);
SDMMC_CLK_DISABLE();
}
#if MICROPY_HW_ENABLE_SDCARD
void HAL_SD_MspInit(SD_HandleTypeDef *hsd) {
sdmmc_msp_init();
}
void HAL_SD_MspDeInit(SD_HandleTypeDef *hsd) {
sdmmc_msp_deinit();
}
#endif
#if MICROPY_HW_ENABLE_MMCARD
void HAL_MMC_MspInit(MMC_HandleTypeDef *hsd) {
sdmmc_msp_init();
}
void HAL_MMC_MspDeInit(MMC_HandleTypeDef *hsd) {
sdmmc_msp_deinit();
}
#endif
bool sdcard_is_present(void) {
#if MICROPY_HW_ENABLE_MMCARD
if (pyb_sdmmc_flags & PYB_SDMMC_FLAG_MMC) {
return false;
}
#endif
return HAL_GPIO_ReadPin(MICROPY_HW_SDCARD_DETECT_PIN->gpio, MICROPY_HW_SDCARD_DETECT_PIN->pin_mask) == MICROPY_HW_SDCARD_DETECT_PRESENT;
}
bool sdcard_power_on(void) {
if (!sdcard_is_present()) {
return false;
}
if (sd_handle.Instance) {
return true;
}
#if MICROPY_HW_ENABLE_SDCARD
STATIC HAL_StatusTypeDef sdmmc_init_sd(void) {
// SD device interface configuration
sd_handle.Instance = SDIO;
sd_handle.Init.ClockEdge = SDIO_CLOCK_EDGE_RISING;
sdmmc_handle.sd.Instance = SDIO;
sdmmc_handle.sd.Init.ClockEdge = SDIO_CLOCK_EDGE_RISING;
#ifndef STM32H7
sd_handle.Init.ClockBypass = SDIO_CLOCK_BYPASS_DISABLE;
sdmmc_handle.sd.Init.ClockBypass = SDIO_CLOCK_BYPASS_DISABLE;
#endif
sd_handle.Init.ClockPowerSave = SDIO_CLOCK_POWER_SAVE_ENABLE;
sd_handle.Init.BusWide = SDIO_BUS_WIDE_1B;
sd_handle.Init.HardwareFlowControl = SDIO_HARDWARE_FLOW_CONTROL_DISABLE;
sd_handle.Init.ClockDiv = SDIO_TRANSFER_CLK_DIV;
sdmmc_handle.sd.Init.ClockPowerSave = SDIO_CLOCK_POWER_SAVE_ENABLE;
sdmmc_handle.sd.Init.BusWide = SDIO_BUS_WIDE_1B;
sdmmc_handle.sd.Init.HardwareFlowControl = SDIO_HARDWARE_FLOW_CONTROL_DISABLE;
sdmmc_handle.sd.Init.ClockDiv = SDIO_TRANSFER_CLK_DIV;
// init the SD interface, with retry if it's not ready yet
for (int retry = 10; HAL_SD_Init(&sd_handle) != HAL_OK; retry--) {
HAL_StatusTypeDef status;
for (int retry = 10; (status = HAL_SD_Init(&sdmmc_handle.sd)) != HAL_OK; retry--) {
if (retry == 0) {
goto error;
return status;
}
mp_hal_delay_ms(50);
}
// configure the SD bus width for wide operation
if (HAL_SD_ConfigWideBusOperation(&sd_handle, SDIO_BUS_WIDE_4B) != HAL_OK) {
HAL_SD_DeInit(&sd_handle);
goto error;
status = HAL_SD_ConfigWideBusOperation(&sdmmc_handle.sd, SDIO_BUS_WIDE_4B);
if (status != HAL_OK) {
HAL_SD_DeInit(&sdmmc_handle.sd);
return status;
}
return true;
return HAL_OK;
}
#endif
error:
sd_handle.Instance = NULL;
return false;
#if MICROPY_HW_ENABLE_MMCARD
STATIC HAL_StatusTypeDef sdmmc_init_mmc(void) {
// MMC device interface configuration
sdmmc_handle.mmc.Instance = SDIO;
sdmmc_handle.mmc.Init.ClockEdge = SDIO_CLOCK_EDGE_RISING;
#ifndef STM32H7
sdmmc_handle.mmc.Init.ClockBypass = SDIO_CLOCK_BYPASS_DISABLE;
#endif
sdmmc_handle.mmc.Init.ClockPowerSave = SDIO_CLOCK_POWER_SAVE_ENABLE;
sdmmc_handle.mmc.Init.BusWide = SDIO_BUS_WIDE_1B;
sdmmc_handle.mmc.Init.HardwareFlowControl = SDIO_HARDWARE_FLOW_CONTROL_DISABLE;
sdmmc_handle.mmc.Init.ClockDiv = SDIO_TRANSFER_CLK_DIV;
// Init the SDIO interface
HAL_StatusTypeDef status = HAL_MMC_Init(&sdmmc_handle.mmc);
if (status != HAL_OK) {
return status;
}
// As this is an eMMC card, overwrite LogBlockNbr with actual value
sdmmc_handle.mmc.MmcCard.LogBlockNbr = 7469056 + 2048;
// Configure the SDIO bus width for wide operation
#ifdef STM32F7
sdmmc_handle.mmc.Init.ClockBypass = SDIO_CLOCK_BYPASS_ENABLE;
#endif
status = HAL_MMC_ConfigWideBusOperation(&sdmmc_handle.mmc, SDIO_BUS_WIDE_4B);
if (status != HAL_OK) {
HAL_MMC_DeInit(&sdmmc_handle.mmc);
return status;
}
return HAL_OK;
}
#endif
bool sdcard_power_on(void) {
if (pyb_sdmmc_flags & PYB_SDMMC_FLAG_ACTIVE) {
return true;
}
HAL_StatusTypeDef status = HAL_ERROR;
switch (pyb_sdmmc_flags) {
#if MICROPY_HW_ENABLE_SDCARD
case PYB_SDMMC_FLAG_SD:
if (sdcard_is_present()) {
status = sdmmc_init_sd();
}
break;
#endif
#if MICROPY_HW_ENABLE_MMCARD
case PYB_SDMMC_FLAG_MMC:
status = sdmmc_init_mmc();
break;
#endif
}
if (status == HAL_OK) {
pyb_sdmmc_flags |= PYB_SDMMC_FLAG_ACTIVE;
return true;
} else {
return false;
}
}
void sdcard_power_off(void) {
if (!sd_handle.Instance) {
return;
switch (pyb_sdmmc_flags) {
#if MICROPY_HW_ENABLE_SDCARD
case PYB_SDMMC_FLAG_ACTIVE | PYB_SDMMC_FLAG_SD:
HAL_SD_DeInit(&sdmmc_handle.sd);
break;
#endif
#if MICROPY_HW_ENABLE_MMCARD
case PYB_SDMMC_FLAG_ACTIVE | PYB_SDMMC_FLAG_MMC:
HAL_MMC_DeInit(&sdmmc_handle.mmc);
break;
#endif
}
HAL_SD_DeInit(&sd_handle);
sd_handle.Instance = NULL;
pyb_sdmmc_flags &= ~PYB_SDMMC_FLAG_ACTIVE;
}
uint64_t sdcard_get_capacity_in_bytes(void) {
if (sd_handle.Instance == NULL) {
return 0;
switch (pyb_sdmmc_flags) {
#if MICROPY_HW_ENABLE_SDCARD
case PYB_SDMMC_FLAG_ACTIVE | PYB_SDMMC_FLAG_SD: {
HAL_SD_CardInfoTypeDef cardinfo;
HAL_SD_GetCardInfo(&sdmmc_handle.sd, &cardinfo);
return (uint64_t)cardinfo.LogBlockNbr * (uint64_t)cardinfo.LogBlockSize;
}
#endif
#if MICROPY_HW_ENABLE_MMCARD
case PYB_SDMMC_FLAG_ACTIVE | PYB_SDMMC_FLAG_MMC: {
HAL_MMC_CardInfoTypeDef cardinfo;
HAL_MMC_GetCardInfo(&sdmmc_handle.mmc, &cardinfo);
return (uint64_t)cardinfo.LogBlockNbr * (uint64_t)cardinfo.LogBlockSize;
}
#endif
default:
return 0;
}
}
STATIC void sdmmc_irq_handler(void) {
switch (pyb_sdmmc_flags) {
#if MICROPY_HW_ENABLE_SDCARD
case PYB_SDMMC_FLAG_ACTIVE | PYB_SDMMC_FLAG_SD:
HAL_SD_IRQHandler(&sdmmc_handle.sd);
#endif
#if MICROPY_HW_ENABLE_MMCARD
case PYB_SDMMC_FLAG_ACTIVE | PYB_SDMMC_FLAG_MMC:
HAL_MMC_IRQHandler(&sdmmc_handle.mmc);
#endif
}
HAL_SD_CardInfoTypeDef cardinfo;
HAL_SD_GetCardInfo(&sd_handle, &cardinfo);
return (uint64_t)cardinfo.LogBlockNbr * (uint64_t)cardinfo.LogBlockSize;
}
#if !defined(MICROPY_HW_SDMMC2_CK)
void SDIO_IRQHandler(void) {
IRQ_ENTER(SDIO_IRQn);
HAL_SD_IRQHandler(&sd_handle);
sdmmc_irq_handler();
IRQ_EXIT(SDIO_IRQn);
}
#endif
@ -262,7 +389,7 @@ void SDIO_IRQHandler(void) {
#if defined(STM32F7)
void SDMMC2_IRQHandler(void) {
IRQ_ENTER(SDMMC2_IRQn);
HAL_SD_IRQHandler(&sd_handle);
sdmmc_irq_handler();
IRQ_EXIT(SDMMC2_IRQn);
}
#endif
@ -271,21 +398,31 @@ STATIC void sdcard_reset_periph(void) {
// Fully reset the SDMMC peripheral before calling HAL SD DMA functions.
// (There could be an outstanding DTIMEOUT event from a previous call and the
// HAL function enables IRQs before fully configuring the SDMMC peripheral.)
sd_handle.Instance->DTIMER = 0;
sd_handle.Instance->DLEN = 0;
sd_handle.Instance->DCTRL = 0;
sd_handle.Instance->ICR = SDMMC_STATIC_FLAGS;
SDIO->DTIMER = 0;
SDIO->DLEN = 0;
SDIO->DCTRL = 0;
SDIO->ICR = SDMMC_STATIC_FLAGS;
}
STATIC HAL_StatusTypeDef sdcard_wait_finished(SD_HandleTypeDef *sd, uint32_t timeout) {
STATIC HAL_StatusTypeDef sdcard_wait_finished(uint32_t timeout) {
// Wait for HAL driver to be ready (eg for DMA to finish)
uint32_t start = HAL_GetTick();
for (;;) {
// Do an atomic check of the state; WFI will exit even if IRQs are disabled
uint32_t irq_state = disable_irq();
if (sd->State != HAL_SD_STATE_BUSY) {
enable_irq(irq_state);
break;
#if MICROPY_HW_ENABLE_MMCARD
if (pyb_sdmmc_flags & PYB_SDMMC_FLAG_MMC) {
if (sdmmc_handle.mmc.State != HAL_MMC_STATE_BUSY) {
enable_irq(irq_state);
break;
}
} else
#endif
{
if (sdmmc_handle.sd.State != HAL_SD_STATE_BUSY) {
enable_irq(irq_state);
break;
}
}
__WFI();
enable_irq(irq_state);
@ -296,7 +433,20 @@ STATIC HAL_StatusTypeDef sdcard_wait_finished(SD_HandleTypeDef *sd, uint32_t tim
// Wait for SD card to complete the operation
for (;;) {
HAL_SD_CardStateTypedef state = HAL_SD_GetCardState(sd);
uint32_t state;
#if MICROPY_HW_ENABLE_MMCARD
MP_STATIC_ASSERT((uint32_t)HAL_SD_CARD_TRANSFER == (uint32_t)HAL_MMC_CARD_TRANSFER);
MP_STATIC_ASSERT((uint32_t)HAL_SD_CARD_SENDING == (uint32_t)HAL_MMC_CARD_SENDING);
MP_STATIC_ASSERT((uint32_t)HAL_SD_CARD_RECEIVING == (uint32_t)HAL_MMC_CARD_RECEIVING);
MP_STATIC_ASSERT((uint32_t)HAL_SD_CARD_PROGRAMMING == (uint32_t)HAL_MMC_CARD_PROGRAMMING);
if (pyb_sdmmc_flags & PYB_SDMMC_FLAG_MMC) {
state = HAL_MMC_GetCardState(&sdmmc_handle.mmc);
} else
#endif
{
state = HAL_SD_GetCardState(&sdmmc_handle.sd);
}
if (state == HAL_SD_CARD_TRANSFER) {
return HAL_OK;
}
@ -313,7 +463,7 @@ STATIC HAL_StatusTypeDef sdcard_wait_finished(SD_HandleTypeDef *sd, uint32_t tim
mp_uint_t sdcard_read_blocks(uint8_t *dest, uint32_t block_num, uint32_t num_blocks) {
// check that SD card is initialised
if (sd_handle.Instance == NULL) {
if (!(pyb_sdmmc_flags & PYB_SDMMC_FLAG_ACTIVE)) {
return HAL_ERROR;
}
@ -343,8 +493,15 @@ mp_uint_t sdcard_read_blocks(uint8_t *dest, uint32_t block_num, uint32_t num_blo
#if SDIO_USE_GPDMA
DMA_HandleTypeDef sd_dma;
dma_init(&sd_dma, &SDMMC_DMA, DMA_PERIPH_TO_MEMORY, &sd_handle);
sd_handle.hdmarx = &sd_dma;
dma_init(&sd_dma, &SDMMC_DMA, DMA_PERIPH_TO_MEMORY, &sdmmc_handle);
#if MICROPY_HW_ENABLE_MMCARD
if (pyb_sdmmc_flags & PYB_SDMMC_FLAG_MMC) {
sdmmc_handle.mmc.hdmarx = &sd_dma;
} else
#endif
{
sdmmc_handle.sd.hdmarx = &sd_dma;
}
#endif
// make sure cache is flushed and invalidated so when DMA updates the RAM
@ -352,21 +509,42 @@ mp_uint_t sdcard_read_blocks(uint8_t *dest, uint32_t block_num, uint32_t num_blo
MP_HAL_CLEANINVALIDATE_DCACHE(dest, num_blocks * SDCARD_BLOCK_SIZE);
sdcard_reset_periph();
err = HAL_SD_ReadBlocks_DMA(&sd_handle, dest, block_num, num_blocks);
#if MICROPY_HW_ENABLE_MMCARD
if (pyb_sdmmc_flags & PYB_SDMMC_FLAG_MMC) {
err = HAL_MMC_ReadBlocks_DMA(&sdmmc_handle.mmc, dest, block_num, num_blocks);
} else
#endif
{
err = HAL_SD_ReadBlocks_DMA(&sdmmc_handle.sd, dest, block_num, num_blocks);
}
if (err == HAL_OK) {
err = sdcard_wait_finished(&sd_handle, 60000);
err = sdcard_wait_finished(60000);
}
#if SDIO_USE_GPDMA
dma_deinit(&SDMMC_DMA);
sd_handle.hdmarx = NULL;
#if MICROPY_HW_ENABLE_MMCARD
if (pyb_sdmmc_flags & PYB_SDMMC_FLAG_MMC) {
sdmmc_handle.mmc.hdmarx = NULL;
} else
#endif
{
sdmmc_handle.sd.hdmarx = NULL;
}
#endif
restore_irq_pri(basepri);
} else {
err = HAL_SD_ReadBlocks(&sd_handle, dest, block_num, num_blocks, 60000);
#if MICROPY_HW_ENABLE_MMCARD
if (pyb_sdmmc_flags & PYB_SDMMC_FLAG_MMC) {
err = HAL_MMC_ReadBlocks(&sdmmc_handle.mmc, dest, block_num, num_blocks, 60000);
} else
#endif
{
err = HAL_SD_ReadBlocks(&sdmmc_handle.sd, dest, block_num, num_blocks, 60000);
}
if (err == HAL_OK) {
err = sdcard_wait_finished(&sd_handle, 60000);
err = sdcard_wait_finished(60000);
}
}
@ -381,7 +559,7 @@ mp_uint_t sdcard_read_blocks(uint8_t *dest, uint32_t block_num, uint32_t num_blo
mp_uint_t sdcard_write_blocks(const uint8_t *src, uint32_t block_num, uint32_t num_blocks) {
// check that SD card is initialised
if (sd_handle.Instance == NULL) {
if (!(pyb_sdmmc_flags & PYB_SDMMC_FLAG_ACTIVE)) {
return HAL_ERROR;
}
@ -411,29 +589,57 @@ mp_uint_t sdcard_write_blocks(const uint8_t *src, uint32_t block_num, uint32_t n
#if SDIO_USE_GPDMA
DMA_HandleTypeDef sd_dma;
dma_init(&sd_dma, &SDMMC_DMA, DMA_MEMORY_TO_PERIPH, &sd_handle);
sd_handle.hdmatx = &sd_dma;
dma_init(&sd_dma, &SDMMC_DMA, DMA_MEMORY_TO_PERIPH, &sdmmc_handle);
#if MICROPY_HW_ENABLE_MMCARD
if (pyb_sdmmc_flags & PYB_SDMMC_FLAG_MMC) {
sdmmc_handle.mmc.hdmatx = &sd_dma;
} else
#endif
{
sdmmc_handle.sd.hdmatx = &sd_dma;
}
#endif
// make sure cache is flushed to RAM so the DMA can read the correct data
MP_HAL_CLEAN_DCACHE(src, num_blocks * SDCARD_BLOCK_SIZE);
sdcard_reset_periph();
err = HAL_SD_WriteBlocks_DMA(&sd_handle, (uint8_t*)src, block_num, num_blocks);
#if MICROPY_HW_ENABLE_MMCARD
if (pyb_sdmmc_flags & PYB_SDMMC_FLAG_MMC) {
err = HAL_MMC_WriteBlocks_DMA(&sdmmc_handle.mmc, (uint8_t*)src, block_num, num_blocks);
} else
#endif
{
err = HAL_SD_WriteBlocks_DMA(&sdmmc_handle.sd, (uint8_t*)src, block_num, num_blocks);
}
if (err == HAL_OK) {
err = sdcard_wait_finished(&sd_handle, 60000);
err = sdcard_wait_finished(60000);
}
#if SDIO_USE_GPDMA
dma_deinit(&SDMMC_DMA);
sd_handle.hdmatx = NULL;
#if MICROPY_HW_ENABLE_MMCARD
if (pyb_sdmmc_flags & PYB_SDMMC_FLAG_MMC) {
sdmmc_handle.mmc.hdmatx = NULL;
} else
#endif
{
sdmmc_handle.sd.hdmatx = NULL;
}
#endif
restore_irq_pri(basepri);
} else {
err = HAL_SD_WriteBlocks(&sd_handle, (uint8_t*)src, block_num, num_blocks, 60000);
#if MICROPY_HW_ENABLE_MMCARD
if (pyb_sdmmc_flags & PYB_SDMMC_FLAG_MMC) {
err = HAL_MMC_WriteBlocks(&sdmmc_handle.mmc, (uint8_t*)src, block_num, num_blocks, 60000);
} else
#endif
{
err = HAL_SD_WriteBlocks(&sdmmc_handle.sd, (uint8_t*)src, block_num, num_blocks, 60000);
}
if (err == HAL_OK) {
err = sdcard_wait_finished(&sd_handle, 60000);
err = sdcard_wait_finished(60000);
}
}
@ -443,18 +649,51 @@ mp_uint_t sdcard_write_blocks(const uint8_t *src, uint32_t block_num, uint32_t n
/******************************************************************************/
// MicroPython bindings
//
// Expose the SD card as an object with the block protocol.
// Expose the SD card or MMC as an object with the block protocol.
// there is a singleton SDCard object
// There are singleton SDCard/MMCard objects
#if MICROPY_HW_ENABLE_SDCARD
const mp_obj_base_t pyb_sdcard_obj = {&pyb_sdcard_type};
#endif
#if MICROPY_HW_ENABLE_MMCARD
const mp_obj_base_t pyb_mmcard_obj = {&pyb_mmcard_type};
#endif
#if MICROPY_HW_ENABLE_SDCARD
STATIC mp_obj_t pyb_sdcard_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
// check arguments
mp_arg_check_num(n_args, n_kw, 0, 0, false);
#if MICROPY_HW_ENABLE_MMCARD
if (pyb_sdmmc_flags & PYB_SDMMC_FLAG_MMC) {
mp_raise_ValueError("peripheral used by MMCard");
}
#endif
pyb_sdmmc_flags |= PYB_SDMMC_FLAG_SD;
// return singleton object
return MP_OBJ_FROM_PTR(&pyb_sdcard_obj);
}
#endif
#if MICROPY_HW_ENABLE_MMCARD
STATIC mp_obj_t pyb_mmcard_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
// check arguments
mp_arg_check_num(n_args, n_kw, 0, 0, false);
#if MICROPY_HW_ENABLE_SDCARD
if (pyb_sdmmc_flags & PYB_SDMMC_FLAG_SD) {
mp_raise_ValueError("peripheral used by SDCard");
}
#endif
pyb_sdmmc_flags |= PYB_SDMMC_FLAG_MMC;
// return singleton object
return MP_OBJ_FROM_PTR(&pyb_mmcard_obj);
}
#endif
STATIC mp_obj_t sd_present(mp_obj_t self) {
return mp_obj_new_bool(sdcard_is_present());
@ -474,16 +713,29 @@ STATIC mp_obj_t sd_power(mp_obj_t self, mp_obj_t state) {
STATIC MP_DEFINE_CONST_FUN_OBJ_2(sd_power_obj, sd_power);
STATIC mp_obj_t sd_info(mp_obj_t self) {
if (sd_handle.Instance == NULL) {
if (!(pyb_sdmmc_flags & PYB_SDMMC_FLAG_ACTIVE)) {
return mp_const_none;
}
HAL_SD_CardInfoTypeDef cardinfo;
HAL_SD_GetCardInfo(&sd_handle, &cardinfo);
uint32_t card_type;
uint32_t log_block_nbr;
uint32_t log_block_size;
#if MICROPY_HW_ENABLE_MMCARD
if (pyb_sdmmc_flags & PYB_SDMMC_FLAG_MMC) {
card_type = sdmmc_handle.mmc.MmcCard.CardType;
log_block_nbr = sdmmc_handle.mmc.MmcCard.LogBlockNbr;
log_block_size = sdmmc_handle.mmc.MmcCard.LogBlockSize;
} else
#endif
{
card_type = sdmmc_handle.sd.SdCard.CardType;
log_block_nbr = sdmmc_handle.sd.SdCard.LogBlockNbr;
log_block_size = sdmmc_handle.sd.SdCard.LogBlockSize;
}
// cardinfo.SD_csd and cardinfo.SD_cid have lots of info but we don't use them
mp_obj_t tuple[3] = {
mp_obj_new_int_from_ull((uint64_t)cardinfo.LogBlockNbr * (uint64_t)cardinfo.LogBlockSize),
mp_obj_new_int_from_uint(cardinfo.LogBlockSize),
mp_obj_new_int(cardinfo.CardType),
mp_obj_new_int_from_ull((uint64_t)log_block_nbr * (uint64_t)log_block_size),
mp_obj_new_int_from_uint(log_block_size),
mp_obj_new_int(card_type),
};
return mp_obj_new_tuple(3, tuple);
}
@ -580,14 +832,26 @@ STATIC const mp_rom_map_elem_t pyb_sdcard_locals_dict_table[] = {
STATIC MP_DEFINE_CONST_DICT(pyb_sdcard_locals_dict, pyb_sdcard_locals_dict_table);
#if MICROPY_HW_ENABLE_SDCARD
const mp_obj_type_t pyb_sdcard_type = {
{ &mp_type_type },
.name = MP_QSTR_SDCard,
.make_new = pyb_sdcard_make_new,
.locals_dict = (mp_obj_dict_t*)&pyb_sdcard_locals_dict,
};
#endif
#if MICROPY_HW_ENABLE_MMCARD
const mp_obj_type_t pyb_mmcard_type = {
{ &mp_type_type },
.name = MP_QSTR_MMCard,
.make_new = pyb_mmcard_make_new,
.locals_dict = (mp_obj_dict_t*)&pyb_sdcard_locals_dict,
};
#endif
void sdcard_init_vfs(fs_user_mount_t *vfs, int part) {
pyb_sdmmc_flags = (pyb_sdmmc_flags & PYB_SDMMC_FLAG_ACTIVE) | PYB_SDMMC_FLAG_SD; // force SD mode
vfs->base.type = &mp_fat_vfs_type;
vfs->flags |= FSUSER_NATIVE | FSUSER_HAVE_IOCTL;
vfs->fatfs.drv = vfs;
@ -602,4 +866,4 @@ void sdcard_init_vfs(fs_user_mount_t *vfs, int part) {
vfs->u.ioctl[1] = MP_OBJ_FROM_PTR(&pyb_sdcard_obj);
}
#endif // MICROPY_HW_ENABLE_SDCARD
#endif // MICROPY_HW_ENABLE_SDCARD || MICROPY_HW_ENABLE_MMCARD

1
ports/stm32/sdcard.h
View File

@ -40,6 +40,7 @@ mp_uint_t sdcard_read_blocks(uint8_t *dest, uint32_t block_num, uint32_t num_blo
mp_uint_t sdcard_write_blocks(const uint8_t *src, uint32_t block_num, uint32_t num_blocks);
extern const struct _mp_obj_type_t pyb_sdcard_type;
extern const struct _mp_obj_type_t pyb_mmcard_type;
extern const struct _mp_obj_base_t pyb_sdcard_obj;
struct _fs_user_mount_t;