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- /**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <https://www.gnu.org/licenses/>.
- *
- */
- #if defined(ARDUINO_ARCH_STM32) && !defined(STM32GENERIC)
-
- #include "../../inc/MarlinConfig.h"
-
- #if ENABLED(SDIO_SUPPORT)
-
- #include <stdint.h>
- #include <stdbool.h>
-
- #if NONE(STM32F103xE, STM32F103xG, STM32F4xx, STM32F7xx)
- #error "ERROR - Only STM32F103xE, STM32F103xG, STM32F4xx or STM32F7xx CPUs supported"
- #endif
-
- #if HAS_SD_HOST_DRIVE
-
- // use USB drivers
-
- extern "C" { int8_t SD_MSC_Read(uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_t blk_len);
- int8_t SD_MSC_Write(uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_t blk_len);
- extern SD_HandleTypeDef hsd;
- }
-
- bool SDIO_Init() {
- return hsd.State == HAL_SD_STATE_READY; // return pass/fail status
- }
-
- bool SDIO_ReadBlock(uint32_t block, uint8_t *src) {
- int8_t status = SD_MSC_Read(0, (uint8_t*)src, block, 1); // read one 512 byte block
- return (bool) status;
- }
-
- bool SDIO_WriteBlock(uint32_t block, const uint8_t *src) {
- int8_t status = SD_MSC_Write(0, (uint8_t*)src, block, 1); // write one 512 byte block
- return (bool) status;
- }
-
- #else // !USBD_USE_CDC_COMPOSITE
-
- // use local drivers
- #if defined(STM32F103xE) || defined(STM32F103xG)
- #include <stm32f1xx_hal_rcc_ex.h>
- #include <stm32f1xx_hal_sd.h>
- #elif defined(STM32F4xx)
- #include <stm32f4xx_hal_rcc.h>
- #include <stm32f4xx_hal_dma.h>
- #include <stm32f4xx_hal_gpio.h>
- #include <stm32f4xx_hal_sd.h>
- #elif defined(STM32F7xx)
- #include <stm32f7xx_hal_rcc.h>
- #include <stm32f7xx_hal_dma.h>
- #include <stm32f7xx_hal_gpio.h>
- #include <stm32f7xx_hal_sd.h>
- #else
- #error "ERROR - Only STM32F103xE, STM32F103xG, STM32F4xx or STM32F7xx CPUs supported"
- #endif
-
- SD_HandleTypeDef hsd; // create SDIO structure
-
- /*
- SDIO_INIT_CLK_DIV is 118
- SDIO clock frequency is 48MHz / (TRANSFER_CLOCK_DIV + 2)
- SDIO init clock frequency should not exceed 400KHz = 48MHz / (118 + 2)
-
- Default TRANSFER_CLOCK_DIV is 2 (118 / 40)
- Default SDIO clock frequency is 48MHz / (2 + 2) = 12 MHz
- This might be too fast for stable SDIO operations
-
- MKS Robin board seems to have stable SDIO with BusWide 1bit and ClockDiv 8 i.e. 4.8MHz SDIO clock frequency
- Additional testing is required as there are clearly some 4bit initialization problems
- */
-
- #ifndef USBD_OK
- #define USBD_OK 0
- #endif
-
- // Target Clock, configurable. Default is 18MHz, from STM32F1
- #ifndef SDIO_CLOCK
- #define SDIO_CLOCK 18000000 /* 18 MHz */
- #endif
-
- // SDIO retries, configurable. Default is 3, from STM32F1
- #ifndef SDIO_READ_RETRIES
- #define SDIO_READ_RETRIES 3
- #endif
-
- // SDIO Max Clock (naming from STM Manual, don't change)
- #define SDIOCLK 48000000
-
- static uint32_t clock_to_divider(uint32_t clk) {
- // limit the SDIO master clock to 8/3 of PCLK2. See STM32 Manuals
- // Also limited to no more than 48Mhz (SDIOCLK).
- const uint32_t pclk2 = HAL_RCC_GetPCLK2Freq();
- clk = min(clk, (uint32_t)(pclk2 * 8 / 3));
- clk = min(clk, (uint32_t)SDIOCLK);
- // Round up divider, so we don't run the card over the speed supported,
- // and subtract by 2, because STM32 will add 2, as written in the manual:
- // SDIO_CK frequency = SDIOCLK / [CLKDIV + 2]
- return pclk2 / clk + (pclk2 % clk != 0) - 2;
- }
-
- void go_to_transfer_speed() {
- SD_InitTypeDef Init;
-
- /* Default SDIO peripheral configuration for SD card initialization */
- Init.ClockEdge = hsd.Init.ClockEdge;
- Init.ClockBypass = hsd.Init.ClockBypass;
- Init.ClockPowerSave = hsd.Init.ClockPowerSave;
- Init.BusWide = hsd.Init.BusWide;
- Init.HardwareFlowControl = hsd.Init.HardwareFlowControl;
- Init.ClockDiv = clock_to_divider(SDIO_CLOCK);
-
- /* Initialize SDIO peripheral interface with default configuration */
- SDIO_Init(hsd.Instance, Init);
- }
-
- void SD_LowLevel_Init(void) {
- uint32_t tempreg;
-
- __HAL_RCC_SDIO_CLK_ENABLE();
- __HAL_RCC_GPIOC_CLK_ENABLE(); //enable GPIO clocks
- __HAL_RCC_GPIOD_CLK_ENABLE(); //enable GPIO clocks
-
- GPIO_InitTypeDef GPIO_InitStruct;
-
- GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
- GPIO_InitStruct.Pull = 1; //GPIO_NOPULL;
- GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
-
- #if DISABLED(STM32F1xx)
- GPIO_InitStruct.Alternate = GPIO_AF12_SDIO;
- #endif
-
- GPIO_InitStruct.Pin = GPIO_PIN_8 | GPIO_PIN_12; // D0 & SCK
- HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
-
- #if PINS_EXIST(SDIO_D1, SDIO_D2, SDIO_D3) // define D1-D3 only if have a four bit wide SDIO bus
- GPIO_InitStruct.Pin = GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11; // D1-D3
- HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
- #endif
-
- // Configure PD.02 CMD line
- GPIO_InitStruct.Pin = GPIO_PIN_2;
- HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
-
- #if DISABLED(STM32F1xx)
- // TODO: use __HAL_RCC_SDIO_RELEASE_RESET() and __HAL_RCC_SDIO_CLK_ENABLE();
- RCC->APB2RSTR &= ~RCC_APB2RSTR_SDIORST_Msk; // take SDIO out of reset
- RCC->APB2ENR |= RCC_APB2RSTR_SDIORST_Msk; // enable SDIO clock
- // Enable the DMA2 Clock
- #endif
-
- //Initialize the SDIO (with initial <400Khz Clock)
- tempreg = 0; //Reset value
- tempreg |= SDIO_CLKCR_CLKEN; // Clock enabled
- tempreg |= SDIO_INIT_CLK_DIV; // Clock Divider. Clock = 48000 / (118 + 2) = 400Khz
- // Keep the rest at 0 => HW_Flow Disabled, Rising Clock Edge, Disable CLK ByPass, Bus Width = 0, Power save Disable
- SDIO->CLKCR = tempreg;
-
- // Power up the SDIO
- SDIO_PowerState_ON(SDIO);
- }
-
- void HAL_SD_MspInit(SD_HandleTypeDef *hsd) { // application specific init
- UNUSED(hsd); // Prevent unused argument(s) compilation warning
- __HAL_RCC_SDIO_CLK_ENABLE(); // turn on SDIO clock
- }
-
- bool SDIO_Init() {
- uint8_t retryCnt = SDIO_READ_RETRIES;
-
- bool status;
- hsd.Instance = SDIO;
- hsd.State = HAL_SD_STATE_RESET;
-
- SD_LowLevel_Init();
-
- uint8_t retry_Cnt = retryCnt;
- for (;;) {
- TERN_(USE_WATCHDOG, HAL_watchdog_refresh());
- status = (bool) HAL_SD_Init(&hsd);
- if (!status) break;
- if (!--retry_Cnt) return false; // return failing status if retries are exhausted
- }
-
- go_to_transfer_speed();
-
- #if PINS_EXIST(SDIO_D1, SDIO_D2, SDIO_D3) // go to 4 bit wide mode if pins are defined
- retry_Cnt = retryCnt;
- for (;;) {
- TERN_(USE_WATCHDOG, HAL_watchdog_refresh());
- if (!HAL_SD_ConfigWideBusOperation(&hsd, SDIO_BUS_WIDE_4B)) break; // some cards are only 1 bit wide so a pass here is not required
- if (!--retry_Cnt) break;
- }
- if (!retry_Cnt) { // wide bus failed, go back to one bit wide mode
- hsd.State = (HAL_SD_StateTypeDef) 0; // HAL_SD_STATE_RESET
- SD_LowLevel_Init();
- retry_Cnt = retryCnt;
- for (;;) {
- TERN_(USE_WATCHDOG, HAL_watchdog_refresh());
- status = (bool) HAL_SD_Init(&hsd);
- if (!status) break;
- if (!--retry_Cnt) return false; // return failing status if retries are exhausted
- }
- }
- #endif
-
- return true;
- }
- /*
- void init_SDIO_pins(void) {
- GPIO_InitTypeDef GPIO_InitStruct = {0};
-
- // SDIO GPIO Configuration
- // PC8 ------> SDIO_D0
- // PC12 ------> SDIO_CK
- // PD2 ------> SDIO_CMD
-
- GPIO_InitStruct.Pin = GPIO_PIN_8;
- GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
- GPIO_InitStruct.Pull = GPIO_NOPULL;
- GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
- GPIO_InitStruct.Alternate = GPIO_AF12_SDIO;
- HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
-
- GPIO_InitStruct.Pin = GPIO_PIN_12;
- GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
- GPIO_InitStruct.Pull = GPIO_NOPULL;
- GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
- GPIO_InitStruct.Alternate = GPIO_AF12_SDIO;
- HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
-
- GPIO_InitStruct.Pin = GPIO_PIN_2;
- GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
- GPIO_InitStruct.Pull = GPIO_NOPULL;
- GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
- GPIO_InitStruct.Alternate = GPIO_AF12_SDIO;
- HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
- }
- */
- //bool SDIO_init() { return (bool) (SD_SDIO_Init() ? 1 : 0);}
- //bool SDIO_Init_C() { return (bool) (SD_SDIO_Init() ? 1 : 0);}
-
- bool SDIO_ReadBlock(uint32_t block, uint8_t *dst) {
- hsd.Instance = SDIO;
- uint8_t retryCnt = SDIO_READ_RETRIES;
-
- bool status;
- for (;;) {
- TERN_(USE_WATCHDOG, HAL_watchdog_refresh());
- status = (bool) HAL_SD_ReadBlocks(&hsd, (uint8_t*)dst, block, 1, 1000); // read one 512 byte block with 500mS timeout
- status |= (bool) HAL_SD_GetCardState(&hsd); // make sure all is OK
- if (!status) break; // return passing status
- if (!--retryCnt) break; // return failing status if retries are exhausted
- }
- return status;
-
- /*
- return (bool) ((status_read | status_card) ? 1 : 0);
-
- if (SDIO_GetCardState() != SDIO_CARD_TRANSFER) return false;
- if (blockAddress >= SdCard.LogBlockNbr) return false;
- if ((0x03 & (uint32_t)data)) return false; // misaligned data
-
- if (SdCard.CardType != CARD_SDHC_SDXC) { blockAddress *= 512U; }
-
- if (!SDIO_CmdReadSingleBlock(blockAddress)) {
- SDIO_CLEAR_FLAG(SDIO_ICR_CMD_FLAGS);
- dma_disable(SDIO_DMA_DEV, SDIO_DMA_CHANNEL);
- return false;
- }
-
- while (!SDIO_GET_FLAG(SDIO_STA_DATAEND | SDIO_STA_TRX_ERROR_FLAGS)) {}
-
- dma_disable(SDIO_DMA_DEV, SDIO_DMA_CHANNEL);
-
- if (SDIO->STA & SDIO_STA_RXDAVL) {
- while (SDIO->STA & SDIO_STA_RXDAVL) (void)SDIO->FIFO;
- SDIO_CLEAR_FLAG(SDIO_ICR_CMD_FLAGS | SDIO_ICR_DATA_FLAGS);
- return false;
- }
-
- if (SDIO_GET_FLAG(SDIO_STA_TRX_ERROR_FLAGS)) {
- SDIO_CLEAR_FLAG(SDIO_ICR_CMD_FLAGS | SDIO_ICR_DATA_FLAGS);
- return false;
- }
- SDIO_CLEAR_FLAG(SDIO_ICR_CMD_FLAGS | SDIO_ICR_DATA_FLAGS);
- */
-
- return true;
- }
-
- bool SDIO_WriteBlock(uint32_t block, const uint8_t *src) {
- hsd.Instance = SDIO;
- uint8_t retryCnt = SDIO_READ_RETRIES;
- bool status;
- for (;;) {
- status = (bool) HAL_SD_WriteBlocks(&hsd, (uint8_t*)src, block, 1, 500); // write one 512 byte block with 500mS timeout
- status |= (bool) HAL_SD_GetCardState(&hsd); // make sure all is OK
- if (!status) break; // return passing status
- if (!--retryCnt) break; // return failing status if retries are exhausted
- }
- return status;
- }
-
- #endif // !USBD_USE_CDC_COMPOSITE
- #endif // SDIO_SUPPORT
- #endif // ARDUINO_ARCH_STM32 && !STM32GENERIC
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