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-rw-r--r--src/stm32/input.c13
-rw-r--r--src/stm32/main.c3
-rw-r--r--src/stm32/setup.c197
-rw-r--r--src/stm32/setup.h24
-rw-r--r--src/stm32/stm32f0xx_hal_conf.h16
5 files changed, 246 insertions, 7 deletions
diff --git a/src/stm32/input.c b/src/stm32/input.c
new file mode 100644
index 0000000..e2d07cb
--- /dev/null
+++ b/src/stm32/input.c
@@ -0,0 +1,13 @@
+#include <stm32f0xx_hal_gpio.h>
+
+#include "input.h"
+
+hh_s_gamepad g_hh_controller_p1 = { 0 };
+hh_s_gamepad g_hh_controller_p2 = { 0 };
+
+void hh_input_read() {
+ g_hh_controller_p1.dpad_left = HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_4);
+ g_hh_controller_p1.dpad_right = HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_5);
+ g_hh_controller_p1.dpad_down = HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_6);
+ g_hh_controller_p1.dpad_up = HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_8);
+}
diff --git a/src/stm32/main.c b/src/stm32/main.c
index 735b378..d381d35 100644
--- a/src/stm32/main.c
+++ b/src/stm32/main.c
@@ -1,4 +1,7 @@
#include "main.h"
+#include "ppu/ppu.h"
+
+void hh_ppu_load_tilemap() {}
void hh_loop() {
while(g_hh_run);
diff --git a/src/stm32/setup.c b/src/stm32/setup.c
new file mode 100644
index 0000000..2c3552b
--- /dev/null
+++ b/src/stm32/setup.c
@@ -0,0 +1,197 @@
+#include <stm32f0xx_hal.h>
+#include <stm32f0xx_hal_spi.h>
+#include <stm32f0xx_hal_uart.h>
+#include <stm32f0xx_hal_gpio.h>
+#include <FreeRTOS.h>
+#include <task.h>
+
+#include "main.h"
+#include "setup.h"
+#include "ppu/ppu.h"
+
+UART_HandleTypeDef huart2 = {
+ .Instance = USART2,
+ .Init.BaudRate = 115200,
+ .Init.WordLength = UART_WORDLENGTH_8B,
+ .Init.StopBits = UART_STOPBITS_1,
+ .Init.Parity = UART_PARITY_NONE,
+ .Init.Mode = UART_MODE_TX_RX,
+ .Init.HwFlowCtl = UART_HWCONTROL_NONE,
+ .Init.OverSampling = UART_OVERSAMPLING_16,
+ .Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE,
+ .AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT,
+};
+
+GPIO_InitTypeDef spi_gpio = {
+ .Pin = HH_IO_SPI_PINS,
+ .Mode = GPIO_MODE_AF_PP,
+ .Pull = GPIO_NOPULL,
+ .Speed = GPIO_SPEED_FREQ_HIGH,
+ .Alternate = GPIO_AF0_SPI1,
+};
+
+SPI_HandleTypeDef hspi1 = {
+ .Instance = SPI1,
+ .Init.Mode = SPI_MODE_MASTER,
+ .Init.Direction = SPI_DIRECTION_1LINE,
+ .Init.DataSize = SPI_DATASIZE_8BIT,
+ .Init.CLKPolarity = SPI_POLARITY_LOW,
+ .Init.CLKPhase = SPI_PHASE_1EDGE,
+ .Init.NSS = SPI_NSS_SOFT,
+ .Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16,
+ .Init.FirstBit = SPI_FIRSTBIT_MSB,
+ .Init.TIMode = SPI_TIMODE_DISABLE,
+ .Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE,
+ .Init.CRCPolynomial = 7,
+ .Init.CRCLength = SPI_CRC_LENGTH_DATASIZE,
+ .Init.NSSPMode = SPI_NSS_PULSE_DISABLE,
+};
+
+TIM_HandleTypeDef htim3 = {
+ .Instance = TIM3,
+ .Init.Prescaler = 7999,
+ .Init.CounterMode = TIM_COUNTERMODE_UP,
+ .Init.Period = 65535,
+ .Init.ClockDivision = TIM_CLOCKDIVISION_DIV1,
+ .Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE,
+};
+
+static void hh_io_spi_setup();
+static void hh_io_tim_setup();
+static void hh_io_usart2_setup();
+static void hh_io_gpio_setup();
+static void hh_io_clock_setup();
+static void hh_io_setup_error_handler();
+
+void hh_setup() {
+ HAL_Init();
+
+ hh_io_clock_setup();
+ hh_io_usart2_setup();
+ hh_io_gpio_setup();
+ hh_io_spi_setup();
+ hh_io_tim_setup();
+
+ hh_ppu_init();
+}
+
+void hh_exit() {
+ hh_ppu_deinit();
+
+ HAL_DeInit();
+}
+
+void hh_io_clock_setup() {
+ if (HAL_OK != HAL_RCC_OscConfig(&(RCC_OscInitTypeDef){
+ .OscillatorType = RCC_OSCILLATORTYPE_HSI,
+ .HSIState = RCC_HSI_ON,
+ .HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT,
+ .PLL.PLLState = RCC_PLL_ON,
+ })) return hh_io_setup_error_handler();
+
+ // cpu, ahb & apb clocks
+ if (HAL_OK != HAL_RCC_ClockConfig(&(RCC_ClkInitTypeDef){
+ .ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_PCLK1,
+ .SYSCLKSource = RCC_SYSCLKSOURCE_HSI,
+ .AHBCLKDivider = RCC_SYSCLK_DIV1,
+ .APB1CLKDivider = RCC_HCLK_DIV1,
+ }, FLASH_LATENCY_1)) return hh_io_setup_error_handler();
+
+ // usart2 clock (usb serial)
+ if (HAL_RCCEx_PeriphCLKConfig(&(RCC_PeriphCLKInitTypeDef){
+ .PeriphClockSelection = RCC_PERIPHCLK_USART2,
+ .Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1,
+ .I2c1ClockSelection = RCC_I2C1CLKSOURCE_HSI,
+ }) != HAL_OK) return hh_io_setup_error_handler();
+}
+
+void hh_io_spi_setup() {
+ if (HAL_SPI_Init(&hspi1) != HAL_OK)
+ return hh_io_setup_error_handler();
+}
+
+void hh_io_usart2_setup() {
+ if (HAL_UART_Init(&huart2) != HAL_OK)
+ return hh_io_setup_error_handler();
+}
+
+void hh_io_tim_setup() {
+ if (HAL_TIM_Base_Init(&htim3) != HAL_OK)
+ return hh_io_setup_error_handler();
+
+ if (HAL_TIM_ConfigClockSource(&htim3, &(TIM_ClockConfigTypeDef) {
+ .ClockSource = TIM_CLOCKSOURCE_INTERNAL
+ }) != HAL_OK) return hh_io_setup_error_handler();
+
+ if (HAL_TIMEx_MasterConfigSynchronization(&htim3, &(TIM_MasterConfigTypeDef) {
+ .MasterOutputTrigger = TIM_TRGO_RESET,
+ .MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE,
+ }) != HAL_OK) return hh_io_setup_error_handler();
+}
+
+void hh_io_gpio_setup() {
+ __HAL_RCC_GPIOA_CLK_ENABLE();
+ __HAL_RCC_GPIOB_CLK_ENABLE();
+
+ HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, GPIO_PIN_SET);
+ HAL_GPIO_Init(GPIOA, &(GPIO_InitTypeDef) {
+ .Pin = GPIO_PIN_9,
+ .Mode = GPIO_MODE_OUTPUT_PP,
+ .Pull = GPIO_NOPULL,
+ .Speed = GPIO_SPEED_FREQ_LOW,
+ });
+ HAL_GPIO_Init(GPIOA, &(GPIO_InitTypeDef) {
+ .Pin = GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_8,
+ .Mode = GPIO_MODE_INPUT,
+ .Pull = GPIO_PULLDOWN,
+ });
+}
+
+void HAL_MspInit() {
+ __HAL_RCC_SYSCFG_CLK_ENABLE();
+ __HAL_RCC_PWR_CLK_ENABLE();
+}
+
+void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi) {
+ if(hspi->Instance != SPI1) return;
+
+ __HAL_RCC_SPI1_CLK_ENABLE();
+ __HAL_RCC_GPIOA_CLK_ENABLE();
+
+ HAL_GPIO_Init(HH_IO_SPI_PORT, &spi_gpio);
+}
+
+void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi) {
+ if(hspi->Instance != SPI1) return;
+
+ __HAL_RCC_SPI1_CLK_DISABLE();
+
+ HAL_GPIO_DeInit(HH_IO_SPI_PORT, HH_IO_SPI_PINS);
+}
+
+void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* htim_base) {
+ if(htim_base->Instance != TIM3) return;
+
+ __HAL_RCC_TIM3_CLK_ENABLE();
+}
+
+void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* htim_base) {
+ if(htim_base->Instance != TIM3) return;
+
+ __HAL_RCC_TIM3_CLK_DISABLE();
+}
+
+void SysTick_Handler() {
+ HAL_IncTick();
+ if (xTaskGetSchedulerState() != taskSCHEDULER_NOT_STARTED)
+ xPortSysTickHandler();
+}
+
+void HardFault_Handler() {
+ for(;;);
+}
+
+void hh_io_setup_error_handler() {
+ __disable_irq();
+ while (1);
+}
diff --git a/src/stm32/setup.h b/src/stm32/setup.h
new file mode 100644
index 0000000..66d5ff3
--- /dev/null
+++ b/src/stm32/setup.h
@@ -0,0 +1,24 @@
+#pragma once
+
+#include <stm32f0xx_hal_spi.h>
+#include <stm32f0xx_hal_uart.h>
+#include <stm32f0xx_hal_tim.h>
+#include <stm32f0xx_hal_gpio.h>
+
+#define HH_IO_SPI_PINS (GPIO_PIN_5 | GPIO_PIN_7)
+#define HH_IO_SPI_PORT GPIOA
+
+extern UART_HandleTypeDef huart2; // NOLINT
+extern GPIO_InitTypeDef spi_gpio; // NOLINT
+extern SPI_HandleTypeDef hspi1; // NOLINT
+extern TIM_HandleTypeDef htim3; // NOLINT
+
+// required HAL setup functions
+void HAL_MspInit(); // NOLINT
+void HAL_UART_MspInit(UART_HandleTypeDef *huart); // NOLINT
+void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi); // NOLINT
+void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi); // NOLINT
+void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* htim_base); // NOLINT
+void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* htim_base); // NOLINT
+void HardFault_Handler(); // NOLINT
+void SysTick_Handler(); // NOLINT
diff --git a/src/stm32/stm32f0xx_hal_conf.h b/src/stm32/stm32f0xx_hal_conf.h
index fc27221..84a3b74 100644
--- a/src/stm32/stm32f0xx_hal_conf.h
+++ b/src/stm32/stm32f0xx_hal_conf.h
@@ -19,16 +19,18 @@
#define DATA_CACHE_ENABLE 0U
#define USE_SPI_CRC 0U
-#define HAL_RCC_MODULE_ENABLED
#define HAL_MODULE_ENABLED
-#define HAL_I2C_MODULE_ENABLED
-#define HAL_GPIO_MODULE_ENABLED
-#define HAL_DMA_MODULE_ENABLED
-#define HAL_CORTEX_MODULE_ENABLED
-#define HAL_PWR_MODULE_ENABLED
-#define HAL_FLASH_MODULE_ENABLED
+#define HAL_SPI_MODULE_ENABLED
#define HAL_TIM_MODULE_ENABLED
#define HAL_UART_MODULE_ENABLED
+#define HAL_CORTEX_MODULE_ENABLED
+#define HAL_DMA_MODULE_ENABLED
+#define HAL_FLASH_MODULE_ENABLED
+#define HAL_GPIO_MODULE_ENABLED
+#define HAL_EXTI_MODULE_ENABLED
+#define HAL_PWR_MODULE_ENABLED
+#define HAL_RCC_MODULE_ENABLED
+// #define HAL_I2C_MODULE_ENABLED
#ifdef HAL_RCC_MODULE_ENABLED
#include <stm32f0xx_hal_rcc.h>