127 lines
3.4 KiB
C
127 lines
3.4 KiB
C
/*
|
|
* This file is subject to the terms of the GFX License. If a copy of
|
|
* the license was not distributed with this file, you can obtain one at:
|
|
*
|
|
* http://ugfx.org/license.html
|
|
*/
|
|
|
|
#ifndef _GINPUT_LLD_MOUSE_BOARD_H
|
|
#define _GINPUT_LLD_MOUSE_BOARD_H
|
|
|
|
// Resolution and Accuracy Settings
|
|
#define GMOUSE_STMPE811_PEN_CALIBRATE_ERROR 8
|
|
#define GMOUSE_STMPE811_PEN_CLICK_ERROR 6
|
|
#define GMOUSE_STMPE811_PEN_MOVE_ERROR 4
|
|
#define GMOUSE_STMPE811_FINGER_CALIBRATE_ERROR 14
|
|
#define GMOUSE_STMPE811_FINGER_CLICK_ERROR 18
|
|
#define GMOUSE_STMPE811_FINGER_MOVE_ERROR 14
|
|
|
|
// How much extra data to allocate at the end of the GMouse structure for the board's use
|
|
#define GMOUSE_STMPE811_BOARD_DATA_SIZE 0
|
|
|
|
// Options - Leave these commented to make it user configurable in the gfxconf.h
|
|
//#define GMOUSE_STMPE811_READ_PRESSURE FALSE
|
|
//#define GMOUSE_STMPE811_SELF_CALIBRATE FALSE
|
|
//#define GMOUSE_STMPE811_TEST_MODE FALSE
|
|
|
|
// Set to FALSE because it does not work properly on this board even though the pin exists.
|
|
#define GMOUSE_STMPE811_GPIO_IRQPIN FALSE
|
|
|
|
// If TRUE this is a really slow CPU and we should always clear the FIFO between reads.
|
|
#define GMOUSE_STMPE811_SLOW_CPU FALSE
|
|
|
|
// Slave address
|
|
#define STMPE811_ADDR 0x41
|
|
|
|
// Maximum timeout
|
|
#define STMPE811_TIMEOUT 0x3000
|
|
|
|
static const I2CConfig i2ccfg = {
|
|
OPMODE_I2C,
|
|
400000,
|
|
FAST_DUTY_CYCLE_2,
|
|
};
|
|
|
|
static bool_t init_board(GMouse* m, unsigned driverinstance) {
|
|
(void) m;
|
|
|
|
// This board only supports one touch panel
|
|
if (driverinstance)
|
|
return FALSE;
|
|
|
|
// Set pin modes
|
|
#if CH_KERNEL_MAJOR == 2
|
|
palSetPadMode(GPIOA, 15, PAL_MODE_INPUT | PAL_STM32_PUDR_FLOATING); /* TP IRQ */
|
|
palSetPadMode(GPIOA, 8, PAL_MODE_ALTERNATE(4) | PAL_STM32_OTYPE_OPENDRAIN); /* SCL */
|
|
palSetPadMode(GPIOC, 9, PAL_MODE_ALTERNATE(4) | PAL_STM32_OTYPE_OPENDRAIN); /* SDA */
|
|
#else
|
|
palSetPadMode(GPIOA, 15, PAL_MODE_INPUT | PAL_STM32_PUPDR_FLOATING); /* TP IRQ */
|
|
palSetPadMode(GPIOA, 8, PAL_MODE_ALTERNATE(4) | PAL_STM32_PUPDR_FLOATING); /* SCL */
|
|
palSetPadMode(GPIOC, 9, PAL_MODE_ALTERNATE(4) | PAL_STM32_PUPDR_FLOATING); /* SDA */
|
|
#endif
|
|
|
|
// Start the I2C
|
|
i2cStart(&I2CD3, &i2ccfg);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
#if GMOUSE_STMPE811_GPIO_IRQPIN
|
|
static bool_t getpin_irq(GMouse* m) {
|
|
(void) m;
|
|
|
|
return !palReadPad(GPIOA, 15);
|
|
}
|
|
#endif
|
|
|
|
static GFXINLINE void aquire_bus(GMouse* m) {
|
|
(void) m;
|
|
|
|
}
|
|
|
|
static GFXINLINE void release_bus(GMouse* m) {
|
|
(void) m;
|
|
|
|
}
|
|
|
|
static void write_reg(GMouse* m, uint8_t reg, uint8_t val) {
|
|
uint8_t txbuf[2];
|
|
(void) m;
|
|
|
|
txbuf[0] = reg;
|
|
txbuf[1] = val;
|
|
|
|
i2cAcquireBus(&I2CD3);
|
|
i2cMasterTransmitTimeout(&I2CD3, STMPE811_ADDR, txbuf, 2, 0, 0, MS2ST(STMPE811_TIMEOUT));
|
|
i2cReleaseBus(&I2CD3);
|
|
}
|
|
|
|
static uint8_t read_byte(GMouse* m, uint8_t reg) {
|
|
uint8_t rxbuf[1];
|
|
(void) m;
|
|
|
|
rxbuf[0] = 0;
|
|
|
|
i2cAcquireBus(&I2CD3);
|
|
i2cMasterTransmitTimeout(&I2CD3, STMPE811_ADDR, ®, 1, rxbuf, 1, MS2ST(STMPE811_TIMEOUT));
|
|
i2cReleaseBus(&I2CD3);
|
|
|
|
return rxbuf[0];
|
|
}
|
|
|
|
static uint16_t read_word(GMouse* m, uint8_t reg) {
|
|
uint8_t rxbuf[2];
|
|
(void) m;
|
|
|
|
rxbuf[0] = 0;
|
|
rxbuf[1] = 0;
|
|
|
|
i2cAcquireBus(&I2CD3);
|
|
i2cMasterTransmitTimeout(&I2CD3, STMPE811_ADDR, ®, 1, rxbuf, 2, MS2ST(STMPE811_TIMEOUT));
|
|
i2cReleaseBus(&I2CD3);
|
|
|
|
return (((uint16_t)rxbuf[0]) << 8) | rxbuf[1];
|
|
}
|
|
|
|
#endif /* _GINPUT_LLD_MOUSE_BOARD_H */
|