52 lines
1.2 KiB
C
52 lines
1.2 KiB
C
#include "stm32h7xx_hal.h"
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#include "main.h"
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#include "otm_lcd_impl.h"
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#define LCD_REGISTER_ADDR 0x60000000
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#define LCD_DATA_ADDR 0x60020000
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static void _otm_dma_transfer_complete(DMA_HandleTypeDef *DmaHandle) {
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//osSemaphoreRelease(DmaHandle->);
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}
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static void _otm_dma_transfer_error(DMA_HandleTypeDef *DmaHandle) {
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// osSemaphoreGive
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}
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void _otm_impl_init(void *handle) {
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_otm_impl_t *impl = handle;
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impl->dma_semphr = osSemaphoreNew(1, 0, NULL);
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}
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otm_ret_t _otm_impl_write_reg(void *handle, otm_data_t *reg, uint8_t len) {
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*(uint16_t *)LCD_REGISTER_ADDR = *reg;
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for(uint8_t i = 1; i < len; i++) {
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*(uint16_t *)LCD_DATA_ADDR = reg[i];
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}
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return OTM_OK;
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}
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otm_ret_t _otm_impl_write_data(void *handle, otm_data_t *data, uint32_t len) {
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for(uint32_t i = 0; i < len; i++){
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*(uint16_t *)LCD_DATA_ADDR = data[i];
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}
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//HAL_DMA_RegisterCallback()
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return OTM_OK;
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}
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otm_ret_t _otm_impl_delay(void *handle, uint32_t usec) {
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HAL_Delay(usec / 1000);
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return OTM_OK;
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}
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otm_ret_t _otm_impl_backlight(void *handle, uint8_t on) {
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HAL_GPIO_WritePin(LCD_BL_GPIO_Port, LCD_BL_Pin, on ? GPIO_PIN_SET : GPIO_PIN_RESET);
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return OTM_OK;
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}
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