Support for TFT & Touch Screens (#18130)

This commit is contained in:
Alexander Gavrilenko
2020-07-30 09:43:19 +03:00
committed by GitHub
parent bba157e5bd
commit 117df87d19
176 changed files with 14747 additions and 303 deletions

View File

@@ -76,7 +76,24 @@
SD_HandleTypeDef hsd; // create SDIO structure
#define TRANSFER_CLOCK_DIV (uint8_t(SDIO_INIT_CLK_DIV) / 40)
/*
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
Add -DTRANSFER_CLOCK_DIV=8 to build parameters to improve SDIO stability
*/
#ifndef TRANSFER_CLOCK_DIV
#define TRANSFER_CLOCK_DIV (uint8_t(SDIO_INIT_CLK_DIV) / 40)
#endif
#ifndef USBD_OK
#define USBD_OK 0
@@ -100,24 +117,25 @@
void SD_LowLevel_Init(void) {
uint32_t tempreg;
GPIO_InitTypeDef GPIO_InitStruct;
__HAL_RCC_SDIO_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE(); //enable GPIO clocks
__HAL_RCC_GPIOD_CLK_ENABLE(); //enable GPIO clocks
GPIO_InitStruct.Pin = GPIO_PIN_8 | GPIO_PIN_12; // D0 & SCK
GPIO_InitTypeDef GPIO_InitStruct;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = 1; //GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF12_SDIO;
#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
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = 1; // GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF12_SDIO;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
#endif
@@ -125,10 +143,13 @@
GPIO_InitStruct.Pin = GPIO_PIN_2;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
RCC->APB2RSTR &= ~RCC_APB2RSTR_SDIORST_Msk; // take SDIO out of reset
RCC->APB2ENR |= RCC_APB2RSTR_SDIORST_Msk; // enable SDIO clock
// Enable the DMA2 Clock
#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
@@ -156,10 +177,21 @@
bool status;
hsd.Instance = SDIO;
hsd.State = (HAL_SD_StateTypeDef) 0; // HAL_SD_STATE_RESET
/*
hsd.Init.ClockEdge = SDIO_CLOCK_EDGE_RISING;
hsd.Init.ClockBypass = SDIO_CLOCK_BYPASS_DISABLE;
hsd.Init.ClockPowerSave = SDIO_CLOCK_POWER_SAVE_DISABLE;
hsd.Init.BusWide = SDIO_BUS_WIDE_1B;
hsd.Init.HardwareFlowControl = SDIO_HARDWARE_FLOW_CONTROL_DISABLE;
hsd.Init.ClockDiv = 8;
*/
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
@@ -170,6 +202,7 @@
#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;
}
@@ -178,6 +211,7 @@
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
@@ -187,15 +221,15 @@
return true;
}
/*
void init_SDIO_pins(void) {
GPIO_InitTypeDef GPIO_InitStruct = {0};
/**SDIO GPIO Configuration
PC8 ------> SDIO_D0
PC12 ------> SDIO_CK
PD2 ------> SDIO_CMD
*/
// 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;
@@ -217,7 +251,7 @@
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);}
@@ -227,6 +261,7 @@
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