SDIO: remove SDIO_IRQHandler and interrupt config (#53)

embed/trezorhal/sdcard.c

@@ -30,9 +30,6 @@
 
 #include "sdcard.h"
 
-#define IRQ_PRI_SDIO            4
-#define IRQ_SUBPRI_SDIO         0
-
 static SD_HandleTypeDef sd_handle;
 
 int sdcard_init(void) {
@@ -64,16 +61,10 @@ int sdcard_init(void) {
 void HAL_SD_MspInit(SD_HandleTypeDef *hsd) {
     // enable SDIO clock
     __HAL_RCC_SDIO_CLK_ENABLE();
-
-    // NVIC configuration for SDIO interrupts
-    HAL_NVIC_SetPriority(SDIO_IRQn, IRQ_PRI_SDIO, IRQ_SUBPRI_SDIO);
-    HAL_NVIC_EnableIRQ(SDIO_IRQn);
-
     // GPIO have already been initialised by sdcard_init
 }
 
 void HAL_SD_MspDeInit(SD_HandleTypeDef *hsd) {
-    HAL_NVIC_DisableIRQ(SDIO_IRQn);
     __HAL_RCC_SDIO_CLK_DISABLE();
 }
 
@@ -137,10 +128,6 @@ uint64_t sdcard_get_capacity_in_bytes(void) {
     return (uint64_t)cardinfo.LogBlockNbr * (uint64_t)cardinfo.LogBlockSize;
 }
 
-void SDIO_IRQHandler(void) {
-    HAL_SD_IRQHandler(&sd_handle);
-}
-
 static HAL_StatusTypeDef sdcard_wait_finished(SD_HandleTypeDef *sd, uint32_t timeout) {
     // Wait for HAL driver to be ready (eg for DMA to finish)
     uint32_t start = HAL_GetTick();