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-rw-r--r--boards/addons/ginput/touch/ADS7843/stm32f4cube_hal.h140
1 files changed, 140 insertions, 0 deletions
diff --git a/boards/addons/ginput/touch/ADS7843/stm32f4cube_hal.h b/boards/addons/ginput/touch/ADS7843/stm32f4cube_hal.h
new file mode 100644
index 00000000..6bce29e6
--- /dev/null
+++ b/boards/addons/ginput/touch/ADS7843/stm32f4cube_hal.h
@@ -0,0 +1,140 @@
+#include "stm32f4xx_hal.h"
+
+#ifndef _GINPUT_LLD_MOUSE_BOARD_H
+#define _GINPUT_LLD_MOUSE_BOARD_H
+
+// Resolution and Accuracy Settings
+#define GMOUSE_ADS7843_PEN_CALIBRATE_ERROR 8
+#define GMOUSE_ADS7843_PEN_CLICK_ERROR 6
+#define GMOUSE_ADS7843_PEN_MOVE_ERROR 4
+#define GMOUSE_ADS7843_FINGER_CALIBRATE_ERROR 14
+#define GMOUSE_ADS7843_FINGER_CLICK_ERROR 18
+#define GMOUSE_ADS7843_FINGER_MOVE_ERROR 14
+
+// How much extra data to allocate at the end of the GMouse structure for the board's use
+#define GMOUSE_ADS7843_BOARD_DATA_SIZE 0
+
+static SPI_HandleTypeDef _hspi;
+
+static bool_t init_board(GMouse* m, unsigned driverinstance)
+{
+ GPIO_InitTypeDef GPIO_InitStruct;
+
+ (void)m;
+ (void)driverinstance;
+
+ // Peripheral clocks
+ __HAL_RCC_GPIOA_CLK_ENABLE();
+ __HAL_RCC_GPIOB_CLK_ENABLE();
+ __HAL_RCC_GPIOC_CLK_ENABLE();
+ __HAL_RCC_SPI1_CLK_ENABLE();
+
+ // GPIO pins
+ {
+ // PA4 (chip select)
+ GPIO_InitStruct.Pin = GPIO_PIN_4;
+ GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
+ GPIO_InitStruct.Alternate = 0;
+ HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+ // PA5 (SPI SCK)
+ GPIO_InitStruct.Pin = GPIO_PIN_5;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_PULLUP;
+ GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
+ GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
+ HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+ // PA6 (SPI MISO)
+ GPIO_InitStruct.Pin = GPIO_PIN_6;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_PULLUP;
+ GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
+ GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
+ HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+ // PA7 (SPI MOSI)
+ GPIO_InitStruct.Pin = GPIO_PIN_7;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStruct.Pull = GPIO_PULLUP;
+ GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
+ GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
+ HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+ // PB1 (busy)
+ GPIO_InitStruct.Pin = GPIO_PIN_1;
+ GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
+ GPIO_InitStruct.Alternate = 0;
+ HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
+
+ // PC4 (pen IRQ)
+ GPIO_InitStruct.Pin = GPIO_PIN_4;
+ GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
+ HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
+ }
+
+ // SPI
+ _hspi.Instance = SPI1;
+ _hspi.Init.Mode = SPI_MODE_MASTER;
+ _hspi.Init.Direction = SPI_DIRECTION_2LINES;
+ _hspi.Init.DataSize = SPI_DATASIZE_8BIT;
+ _hspi.Init.CLKPolarity = SPI_POLARITY_LOW;
+ _hspi.Init.CLKPhase = SPI_PHASE_1EDGE;
+ _hspi.Init.NSS = SPI_NSS_SOFT;
+ _hspi.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_256;
+ _hspi.Init.FirstBit = SPI_FIRSTBIT_MSB;
+ _hspi.Init.TIMode = SPI_TIMODE_DISABLE;
+ _hspi.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
+ _hspi.Init.CRCPolynomial = 10;
+ if (HAL_SPI_Init(&_hspi) != HAL_OK) {
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static GFXINLINE bool_t getpin_pressed(GMouse* m)
+{
+ (void)m;
+
+ if (HAL_GPIO_ReadPin(GPIOC, GPIO_PIN_4) == GPIO_PIN_RESET)
+ return TRUE;
+
+ return FALSE;
+}
+
+static GFXINLINE void aquire_bus(GMouse* m)
+{
+ (void)m;
+
+ HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
+}
+
+static GFXINLINE void release_bus(GMouse* m)
+{
+ (void)m;
+
+ HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
+}
+
+static GFXINLINE uint16_t read_value(GMouse* m, uint16_t reg)
+{
+ uint8_t txbuf[3] = {0, 0, 0};
+ uint8_t rxbuf[3] = {0, 0, 0};
+ uint16_t ret;
+
+ (void)m;
+
+ txbuf[0] = reg;
+ HAL_SPI_TransmitReceive(&_hspi, txbuf, rxbuf, 3, 1000);
+
+ return (rxbuf[1] << 5) | (rxbuf[2] >> 3);
+}
+
+#endif /* _GINPUT_LLD_MOUSE_BOARD_H */