// Copyright 2023 Dasky (@daskygit) // Copyright 2023 George Norton (@george-norton) // SPDX-License-Identifier: GPL-2.0-or-later #include "azoteq_iqs5xx.h" #include "pointing_device_internal.h" #include "wait.h" #ifndef AZOTEQ_IQS5XX_ADDRESS # define AZOTEQ_IQS5XX_ADDRESS (0x74 << 1) #endif #ifndef AZOTEQ_IQS5XX_TIMEOUT_MS # define AZOTEQ_IQS5XX_TIMEOUT_MS 10 #endif #define AZOTEQ_IQS5XX_REG_PRODUCT_NUMBER 0x0000 #define AZOTEQ_IQS5XX_REG_PREVIOUS_CYCLE_TIME 0x000C #define AZOTEQ_IQS5XX_REG_SYSTEM_CONTROL_1 0x0432 #define AZOTEQ_IQS5XX_REG_REPORT_RATE_ACTIVE 0x057A #define AZOTEQ_IQS5XX_REG_SYSTEM_CONFIG_0 0x058E #define AZOTEQ_IQS5XX_REG_SYSTEM_CONFIG_1 0x058F #define AZOTEQ_IQS5XX_REG_X_RESOLUTION 0x066E #define AZOTEQ_IQS5XX_REG_XY_CONFIG_0 0x0669 #define AZOTEQ_IQS5XX_REG_Y_RESOLUTION 0x0670 #define AZOTEQ_IQS5XX_REG_SINGLE_FINGER_GESTURES 0x06B7 #define AZOTEQ_IQS5XX_REG_END_COMMS 0xEEEE // Gesture configuration #ifndef AZOTEQ_IQS5XX_TAP_ENABLE # define AZOTEQ_IQS5XX_TAP_ENABLE true #endif #ifndef AZOTEQ_IQS5XX_PRESS_AND_HOLD_ENABLE # define AZOTEQ_IQS5XX_PRESS_AND_HOLD_ENABLE false #endif #ifndef AZOTEQ_IQS5XX_TWO_FINGER_TAP_ENABLE # define AZOTEQ_IQS5XX_TWO_FINGER_TAP_ENABLE true #endif #ifndef AZOTEQ_IQS5XX_SCROLL_ENABLE # define AZOTEQ_IQS5XX_SCROLL_ENABLE true #endif #ifndef AZOTEQ_IQS5XX_SWIPE_X_ENABLE # define AZOTEQ_IQS5XX_SWIPE_X_ENABLE false #endif #ifndef AZOTEQ_IQS5XX_SWIPE_Y_ENABLE # define AZOTEQ_IQS5XX_SWIPE_Y_ENABLE false #endif #ifndef AZOTEQ_IQS5XX_ZOOM_ENABLE # define AZOTEQ_IQS5XX_ZOOM_ENABLE false #endif #ifndef AZOTEQ_IQS5XX_TAP_TIME # define AZOTEQ_IQS5XX_TAP_TIME 0x96 #endif #ifndef AZOTEQ_IQS5XX_TAP_DISTANCE # define AZOTEQ_IQS5XX_TAP_DISTANCE 0x19 #endif #ifndef AZOTEQ_IQS5XX_HOLD_TIME # define AZOTEQ_IQS5XX_HOLD_TIME 0x12C #endif #ifndef AZOTEQ_IQS5XX_SWIPE_INITIAL_TIME # define AZOTEQ_IQS5XX_SWIPE_INITIAL_TIME 0x64 // 0x96 #endif #ifndef AZOTEQ_IQS5XX_SWIPE_INITIAL_DISTANCE # define AZOTEQ_IQS5XX_SWIPE_INITIAL_DISTANCE 0x12C #endif #ifndef AZOTEQ_IQS5XX_SWIPE_CONSECUTIVE_TIME # define AZOTEQ_IQS5XX_SWIPE_CONSECUTIVE_TIME 0x0 #endif #ifndef AZOTEQ_IQS5XX_SWIPE_CONSECUTIVE_DISTANCE # define AZOTEQ_IQS5XX_SWIPE_CONSECUTIVE_DISTANCE 0x7D0 #endif #ifndef AZOTEQ_IQS5XX_SCROLL_INITIAL_DISTANCE # define AZOTEQ_IQS5XX_SCROLL_INITIAL_DISTANCE 0x32 #endif #ifndef AZOTEQ_IQS5XX_ZOOM_INITIAL_DISTANCE # define AZOTEQ_IQS5XX_ZOOM_INITIAL_DISTANCE 0x32 #endif #ifndef AZOTEQ_IQS5XX_ZOOM_CONSECUTIVE_DISTANCE # define AZOTEQ_IQS5XX_ZOOM_CONSECUTIVE_DISTANCE 0x19 #endif #if defined(AZOTEQ_IQS5XX_TPS43) # define AZOTEQ_IQS5XX_WIDTH_MM 43 # define AZOTEQ_IQS5XX_HEIGHT_MM 40 # define AZOTEQ_IQS5XX_RESOLUTION_X 2048 # define AZOTEQ_IQS5XX_RESOLUTION_Y 1792 #elif defined(AZOTEQ_IQS5XX_TPS65) # define AZOTEQ_IQS5XX_WIDTH_MM 65 # define AZOTEQ_IQS5XX_HEIGHT_MM 49 # define AZOTEQ_IQS5XX_RESOLUTION_X 3072 # define AZOTEQ_IQS5XX_RESOLUTION_Y 2048 #elif !defined(AZOTEQ_IQS5XX_WIDTH_MM) && !defined(AZOTEQ_IQS5XX_HEIGHT_MM) # error "You must define one of the available azoteq trackpads or specify at least the width and height" #endif #define DIVIDE_UNSIGNED_ROUND(numerator, denominator) (((numerator) + ((denominator) / 2)) / (denominator)) #define AZOTEQ_IQS5XX_INCH_TO_RESOLUTION_X(inch) (DIVIDE_UNSIGNED_ROUND((inch) * (uint32_t)AZOTEQ_IQS5XX_WIDTH_MM * 10, 254)) #define AZOTEQ_IQS5XX_RESOLUTION_X_TO_INCH(px) (DIVIDE_UNSIGNED_ROUND((px) * (uint32_t)254, AZOTEQ_IQS5XX_WIDTH_MM * 10)) #define AZOTEQ_IQS5XX_INCH_TO_RESOLUTION_Y(inch) (DIVIDE_UNSIGNED_ROUND((inch) * (uint32_t)AZOTEQ_IQS5XX_HEIGHT_MM * 10, 254)) #define AZOTEQ_IQS5XX_RESOLUTION_Y_TO_INCH(px) (DIVIDE_UNSIGNED_ROUND((px) * (uint32_t)254, AZOTEQ_IQS5XX_HEIGHT_MM * 10)) static uint16_t azoteq_iqs5xx_product_number = AZOTEQ_IQS5XX_UNKNOWN; static struct { uint16_t resolution_x; uint16_t resolution_y; } azoteq_iqs5xx_device_resolution_t; i2c_status_t azoteq_iqs5xx_wake(void) { uint8_t data = 0; i2c_status_t status = i2c_read_register16(AZOTEQ_IQS5XX_ADDRESS, AZOTEQ_IQS5XX_REG_PREVIOUS_CYCLE_TIME, (uint8_t *)&data, sizeof(data), 1); i2c_stop(); wait_us(150); return status; } i2c_status_t azoteq_iqs5xx_end_session(void) { const uint8_t END_BYTE = 1; // any data return i2c_write_register16(AZOTEQ_IQS5XX_ADDRESS, AZOTEQ_IQS5XX_REG_END_COMMS, &END_BYTE, 1, AZOTEQ_IQS5XX_TIMEOUT_MS); } i2c_status_t azoteq_iqs5xx_get_base_data(azoteq_iqs5xx_base_data_t *base_data) { i2c_status_t status = i2c_read_register16(AZOTEQ_IQS5XX_ADDRESS, AZOTEQ_IQS5XX_REG_PREVIOUS_CYCLE_TIME, (uint8_t *)base_data, 10, AZOTEQ_IQS5XX_TIMEOUT_MS); if (status == I2C_STATUS_SUCCESS) { azoteq_iqs5xx_end_session(); } return status; } i2c_status_t azoteq_iqs5xx_get_report_rate(azoteq_iqs5xx_report_rate_t *report_rate, azoteq_iqs5xx_charging_modes_t mode, bool end_session) { if (mode > AZOTEQ_IQS5XX_LP2) { pd_dprintf("IQS5XX - Invalid mode for get report rate.\n"); return I2C_STATUS_ERROR; } uint16_t selected_reg = AZOTEQ_IQS5XX_REG_REPORT_RATE_ACTIVE + (2 * mode); i2c_status_t status = i2c_read_register16(AZOTEQ_IQS5XX_ADDRESS, selected_reg, (uint8_t *)report_rate, 2, AZOTEQ_IQS5XX_TIMEOUT_MS); if (end_session) { azoteq_iqs5xx_end_session(); } return status; } i2c_status_t azoteq_iqs5xx_set_report_rate(uint16_t report_rate_ms, azoteq_iqs5xx_charging_modes_t mode, bool end_session) { if (mode > AZOTEQ_IQS5XX_LP2) { pd_dprintf("IQS5XX - Invalid mode for set report rate.\n"); return I2C_STATUS_ERROR; } uint16_t selected_reg = AZOTEQ_IQS5XX_REG_REPORT_RATE_ACTIVE + (2 * mode); azoteq_iqs5xx_report_rate_t report_rate = {0}; report_rate.h = (uint8_t)((report_rate_ms >> 8) & 0xFF); report_rate.l = (uint8_t)(report_rate_ms & 0xFF); i2c_status_t status = i2c_write_register16(AZOTEQ_IQS5XX_ADDRESS, selected_reg, (uint8_t *)&report_rate, 2, AZOTEQ_IQS5XX_TIMEOUT_MS); if (end_session) { azoteq_iqs5xx_end_session(); } return status; } i2c_status_t azoteq_iqs5xx_set_reati(bool enabled, bool end_session) { azoteq_iqs5xx_system_config_0_t config = {0}; i2c_status_t status = i2c_read_register16(AZOTEQ_IQS5XX_ADDRESS, AZOTEQ_IQS5XX_REG_SYSTEM_CONFIG_0, (uint8_t *)&config, sizeof(azoteq_iqs5xx_system_config_0_t), AZOTEQ_IQS5XX_TIMEOUT_MS); if (status == I2C_STATUS_SUCCESS) { config.reati = enabled; status = i2c_write_register16(AZOTEQ_IQS5XX_ADDRESS, AZOTEQ_IQS5XX_REG_SYSTEM_CONFIG_0, (uint8_t *)&config, sizeof(azoteq_iqs5xx_system_config_0_t), AZOTEQ_IQS5XX_TIMEOUT_MS); } if (end_session) { azoteq_iqs5xx_end_session(); } return status; } i2c_status_t azoteq_iqs5xx_set_event_mode(bool enabled, bool end_session) { azoteq_iqs5xx_system_config_1_t config = {0}; i2c_status_t status = i2c_read_register16(AZOTEQ_IQS5XX_ADDRESS, AZOTEQ_IQS5XX_REG_SYSTEM_CONFIG_1, (uint8_t *)&config, sizeof(azoteq_iqs5xx_system_config_1_t), AZOTEQ_IQS5XX_TIMEOUT_MS); if (status == I2C_STATUS_SUCCESS) { config.event_mode = enabled; config.touch_event = true; config.tp_event = true; config.prox_event = false; config.snap_event = false; config.reati_event = false; config.alp_prox_event = false; config.gesture_event = true; status = i2c_write_register16(AZOTEQ_IQS5XX_ADDRESS, AZOTEQ_IQS5XX_REG_SYSTEM_CONFIG_1, (uint8_t *)&config, sizeof(azoteq_iqs5xx_system_config_1_t), AZOTEQ_IQS5XX_TIMEOUT_MS); } if (end_session) { azoteq_iqs5xx_end_session(); } return status; } i2c_status_t azoteq_iqs5xx_set_gesture_config(bool end_session) { azoteq_iqs5xx_gesture_config_t config = {0}; i2c_status_t status = i2c_read_register16(AZOTEQ_IQS5XX_ADDRESS, AZOTEQ_IQS5XX_REG_SINGLE_FINGER_GESTURES, (uint8_t *)&config, sizeof(azoteq_iqs5xx_gesture_config_t), AZOTEQ_IQS5XX_TIMEOUT_MS); pd_dprintf("azo scroll: %d\n", config.multi_finger_gestures.scroll); if (status == I2C_STATUS_SUCCESS) { config.single_finger_gestures.single_tap = AZOTEQ_IQS5XX_TAP_ENABLE; config.single_finger_gestures.press_and_hold = AZOTEQ_IQS5XX_PRESS_AND_HOLD_ENABLE; config.single_finger_gestures.swipe_x_plus = AZOTEQ_IQS5XX_SWIPE_X_ENABLE; config.single_finger_gestures.swipe_x_minus = AZOTEQ_IQS5XX_SWIPE_X_ENABLE; config.single_finger_gestures.swipe_y_plus = AZOTEQ_IQS5XX_SWIPE_Y_ENABLE; config.single_finger_gestures.swipe_y_minus = AZOTEQ_IQS5XX_SWIPE_Y_ENABLE; config.multi_finger_gestures.two_finger_tap = AZOTEQ_IQS5XX_TWO_FINGER_TAP_ENABLE; config.multi_finger_gestures.scroll = AZOTEQ_IQS5XX_SCROLL_ENABLE; config.multi_finger_gestures.zoom = AZOTEQ_IQS5XX_ZOOM_ENABLE; config.tap_time = AZOTEQ_IQS5XX_SWAP_H_L_BYTES(AZOTEQ_IQS5XX_TAP_TIME); config.tap_distance = AZOTEQ_IQS5XX_SWAP_H_L_BYTES(AZOTEQ_IQS5XX_TAP_DISTANCE); config.hold_time = AZOTEQ_IQS5XX_SWAP_H_L_BYTES(AZOTEQ_IQS5XX_HOLD_TIME); config.swipe_initial_time = AZOTEQ_IQS5XX_SWAP_H_L_BYTES(AZOTEQ_IQS5XX_SWIPE_INITIAL_TIME); config.swipe_initial_distance = AZOTEQ_IQS5XX_SWAP_H_L_BYTES(AZOTEQ_IQS5XX_SWIPE_INITIAL_DISTANCE); config.swipe_consecutive_time = AZOTEQ_IQS5XX_SWAP_H_L_BYTES(AZOTEQ_IQS5XX_SWIPE_CONSECUTIVE_TIME); config.swipe_consecutive_distance = AZOTEQ_IQS5XX_SWAP_H_L_BYTES(AZOTEQ_IQS5XX_SWIPE_CONSECUTIVE_DISTANCE); config.scroll_initial_distance = AZOTEQ_IQS5XX_SWAP_H_L_BYTES(AZOTEQ_IQS5XX_SCROLL_INITIAL_DISTANCE); config.zoom_initial_distance = AZOTEQ_IQS5XX_SWAP_H_L_BYTES(AZOTEQ_IQS5XX_ZOOM_INITIAL_DISTANCE); config.zoom_consecutive_distance = AZOTEQ_IQS5XX_SWAP_H_L_BYTES(AZOTEQ_IQS5XX_ZOOM_CONSECUTIVE_DISTANCE); status = i2c_write_register16(AZOTEQ_IQS5XX_ADDRESS, AZOTEQ_IQS5XX_REG_SINGLE_FINGER_GESTURES, (uint8_t *)&config, sizeof(azoteq_iqs5xx_gesture_config_t), AZOTEQ_IQS5XX_TIMEOUT_MS); } if (end_session) { azoteq_iqs5xx_end_session(); } return status; } i2c_status_t azoteq_iqs5xx_set_xy_config(bool flip_x, bool flip_y, bool switch_xy, bool palm_reject, bool end_session) { azoteq_iqs5xx_xy_config_0_t config = {0}; i2c_status_t status = i2c_read_register16(AZOTEQ_IQS5XX_ADDRESS, AZOTEQ_IQS5XX_REG_XY_CONFIG_0, (uint8_t *)&config, sizeof(azoteq_iqs5xx_xy_config_0_t), AZOTEQ_IQS5XX_TIMEOUT_MS); if (status == I2C_STATUS_SUCCESS) { if (flip_x) { config.flip_x = !config.flip_x; } if (flip_y) { config.flip_y = !config.flip_y; } if (switch_xy) { config.switch_xy_axis = !config.switch_xy_axis; } config.palm_reject = palm_reject; status = i2c_write_register16(AZOTEQ_IQS5XX_ADDRESS, AZOTEQ_IQS5XX_REG_XY_CONFIG_0, (uint8_t *)&config, sizeof(azoteq_iqs5xx_xy_config_0_t), AZOTEQ_IQS5XX_TIMEOUT_MS); } if (end_session) { azoteq_iqs5xx_end_session(); } return status; } i2c_status_t azoteq_iqs5xx_reset_suspend(bool reset, bool suspend, bool end_session) { azoteq_iqs5xx_system_control_1_t config = {0}; i2c_status_t status = i2c_read_register16(AZOTEQ_IQS5XX_ADDRESS, AZOTEQ_IQS5XX_REG_SYSTEM_CONTROL_1, (uint8_t *)&config, sizeof(azoteq_iqs5xx_system_control_1_t), AZOTEQ_IQS5XX_TIMEOUT_MS); if (status == I2C_STATUS_SUCCESS) { config.reset = reset; config.suspend = suspend; status = i2c_write_register16(AZOTEQ_IQS5XX_ADDRESS, AZOTEQ_IQS5XX_REG_SYSTEM_CONTROL_1, (uint8_t *)&config, sizeof(azoteq_iqs5xx_system_control_1_t), AZOTEQ_IQS5XX_TIMEOUT_MS); } if (end_session) { azoteq_iqs5xx_end_session(); } return status; } void azoteq_iqs5xx_set_cpi(uint16_t cpi) { if (azoteq_iqs5xx_product_number != AZOTEQ_IQS5XX_UNKNOWN) { azoteq_iqs5xx_resolution_t resolution = {0}; resolution.x_resolution = AZOTEQ_IQS5XX_SWAP_H_L_BYTES(MIN(azoteq_iqs5xx_device_resolution_t.resolution_x, AZOTEQ_IQS5XX_INCH_TO_RESOLUTION_X(cpi))); resolution.y_resolution = AZOTEQ_IQS5XX_SWAP_H_L_BYTES(MIN(azoteq_iqs5xx_device_resolution_t.resolution_y, AZOTEQ_IQS5XX_INCH_TO_RESOLUTION_Y(cpi))); i2c_write_register16(AZOTEQ_IQS5XX_ADDRESS, AZOTEQ_IQS5XX_REG_X_RESOLUTION, (uint8_t *)&resolution, sizeof(azoteq_iqs5xx_resolution_t), AZOTEQ_IQS5XX_TIMEOUT_MS); } } uint16_t azoteq_iqs5xx_get_cpi(void) { if (azoteq_iqs5xx_product_number != AZOTEQ_IQS5XX_UNKNOWN) { azoteq_iqs5xx_resolution_t resolution = {0}; i2c_status_t status = i2c_read_register16(AZOTEQ_IQS5XX_ADDRESS, AZOTEQ_IQS5XX_REG_X_RESOLUTION, (uint8_t *)&resolution, sizeof(azoteq_iqs5xx_resolution_t), AZOTEQ_IQS5XX_TIMEOUT_MS); if (status == I2C_STATUS_SUCCESS) { return AZOTEQ_IQS5XX_RESOLUTION_X_TO_INCH(AZOTEQ_IQS5XX_SWAP_H_L_BYTES(resolution.x_resolution)); } } return 0; } uint16_t azoteq_iqs5xx_get_product(void) { i2c_status_t status = i2c_read_register16(AZOTEQ_IQS5XX_ADDRESS, AZOTEQ_IQS5XX_REG_PRODUCT_NUMBER, (uint8_t *)&azoteq_iqs5xx_product_number, sizeof(uint16_t), AZOTEQ_IQS5XX_TIMEOUT_MS); if (status == I2C_STATUS_SUCCESS) { azoteq_iqs5xx_product_number = AZOTEQ_IQS5XX_SWAP_H_L_BYTES(azoteq_iqs5xx_product_number); } pd_dprintf("AZOTEQ: Product number %u\n", azoteq_iqs5xx_product_number); return azoteq_iqs5xx_product_number; } void azoteq_iqs5xx_setup_resolution(void) { #if !defined(AZOTEQ_IQS5XX_RESOLUTION_X) && !defined(AZOTEQ_IQS5XX_RESOLUTION_Y) switch (azoteq_iqs5xx_product_number) { case AZOTEQ_IQS550: azoteq_iqs5xx_device_resolution_t.resolution_x = 3584; azoteq_iqs5xx_device_resolution_t.resolution_y = 2304; break; case AZOTEQ_IQS572: azoteq_iqs5xx_device_resolution_t.resolution_x = 2048; azoteq_iqs5xx_device_resolution_t.resolution_y = 1792; break; case AZOTEQ_IQS525: azoteq_iqs5xx_device_resolution_t.resolution_x = 1280; azoteq_iqs5xx_device_resolution_t.resolution_y = 768; break; default: // shouldn't be here azoteq_iqs5xx_device_resolution_t.resolution_x = 0; azoteq_iqs5xx_device_resolution_t.resolution_y = 0; break; } #endif #ifdef AZOTEQ_IQS5XX_RESOLUTION_X azoteq_iqs5xx_device_resolution_t.resolution_x = AZOTEQ_IQS5XX_RESOLUTION_X; #endif #ifdef AZOTEQ_IQS5XX_RESOLUTION_Y azoteq_iqs5xx_device_resolution_t.resolution_y = AZOTEQ_IQS5XX_RESOLUTION_Y; #endif }