add forgotten u8g2 periphery

applications/gui/u8g2_periphery.c

@@ -0,0 +1,114 @@
+#include "u8g2/u8g2.h"
+#include "flipper.h"
+
+extern SPI_HandleTypeDef hspi1;
+
+// TODO: fix log
+#ifdef DEBUG
+#undef DEBUG
+#endif
+
+uint8_t u8g2_gpio_and_delay_stm32(u8x8_t* u8x8, uint8_t msg, uint8_t arg_int, void* arg_ptr) {
+    switch(msg) {
+    //Initialize SPI peripheral
+    case U8X8_MSG_GPIO_AND_DELAY_INIT:
+        /* HAL initialization contains all what we need so we can skip this part. */
+        break;
+
+    //Function which implements a delay, arg_int contains the amount of ms
+    case U8X8_MSG_DELAY_MILLI:
+        osDelay(arg_int);
+        break;
+
+    //Function which delays 10us
+    case U8X8_MSG_DELAY_10MICRO:
+        delay_us(10);
+        break;
+
+    //Function which delays 100ns
+    case U8X8_MSG_DELAY_100NANO:
+        asm("nop");
+        break;
+
+    // Function to define the logic level of the RESET line
+    case U8X8_MSG_GPIO_RESET:
+#ifdef DEBUG
+        fuprintf(log, "[u8g2] rst %d\n", arg_int);
+#endif
+
+        // TODO change it to FuriRecord pin
+        HAL_GPIO_WritePin(
+            DISPLAY_RST_GPIO_Port, DISPLAY_RST_Pin, arg_int ? GPIO_PIN_SET : GPIO_PIN_RESET);
+        break;
+
+    default:
+#ifdef DEBUG
+        fufuprintf(log, "[u8g2] unknown io %d\n", msg);
+#endif
+
+        return 0; //A message was received which is not implemented, return 0 to indicate an error
+    }
+
+    return 1; // command processed successfully.
+}
+
+uint8_t u8x8_hw_spi_stm32(u8x8_t* u8x8, uint8_t msg, uint8_t arg_int, void* arg_ptr) {
+    switch(msg) {
+    case U8X8_MSG_BYTE_SEND:
+#ifdef DEBUG
+        fuprintf(log, "[u8g2] send %d bytes %02X\n", arg_int, ((uint8_t*)arg_ptr)[0]);
+#endif
+
+        // TODO change it to FuriRecord SPI
+        HAL_SPI_Transmit(&hspi1, (uint8_t*)arg_ptr, arg_int, 10000);
+        break;
+
+    case U8X8_MSG_BYTE_SET_DC:
+#ifdef DEBUG
+        fuprintf(log, "[u8g2] dc %d\n", arg_int);
+#endif
+
+        // TODO change it to FuriRecord pin
+        HAL_GPIO_WritePin(
+            DISPLAY_DI_GPIO_Port, DISPLAY_DI_Pin, arg_int ? GPIO_PIN_SET : GPIO_PIN_RESET);
+        break;
+
+    case U8X8_MSG_BYTE_INIT:
+#ifdef DEBUG
+        fuprintf(log, "[u8g2] init\n");
+#endif
+
+        // TODO change it to FuriRecord pin
+        HAL_GPIO_WritePin(DISPLAY_CS_GPIO_Port, DISPLAY_CS_Pin, GPIO_PIN_RESET);
+        break;
+
+    case U8X8_MSG_BYTE_START_TRANSFER:
+#ifdef DEBUG
+        fuprintf(log, "[u8g2] start\n");
+#endif
+
+        // TODO change it to FuriRecord pin
+        HAL_GPIO_WritePin(DISPLAY_CS_GPIO_Port, DISPLAY_CS_Pin, GPIO_PIN_RESET);
+        asm("nop");
+        break;
+
+    case U8X8_MSG_BYTE_END_TRANSFER:
+#ifdef DEBUG
+        fuprintf(log, "[u8g2] end\n");
+#endif
+
+        asm("nop");
+        // TODO change it to FuriRecord pin
+        HAL_GPIO_WritePin(DISPLAY_CS_GPIO_Port, DISPLAY_CS_Pin, GPIO_PIN_SET);
+        break;
+
+    default:
+#ifdef DEBUG
+        fuprintf(log, "[u8g2] unknown xfer %d\n", msg);
+#endif
+
+        return 0;
+    }
+
+    return 1;
+}