arno/trezor-firmware
1
0
Fork 0
mirror of https://github.com/trezor/trezor-firmware.git synced 2025-05-30 04:38:44 +00:00
Code Issues Releases Wiki Activity

feat(core): add event polling to touch driver

Browse Source 
[no changelog]
This commit is contained in:
cepetr 2025-04-01 09:06:10 +02:00 committed by cepetr
parent 8d7a25e5eb
commit 4815118a6d
21 changed files with 1030 additions and 524 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

184
core/embed/io/touch/ft6x36/ft6x36.c
View File

@ -24,6 +24,7 @@
#include <io/i2c_bus.h>
#include <io/touch.h>
#include <sys/sysevent_source.h>
#include <sys/systick.h>
#include "ft6x36.h"
@ -33,6 +34,8 @@
#include "panels/lhs200kb-if21.h"
#endif
#include "../touch_fsm.h"
// #define TOUCH_TRACE_REGS
// #define TOUCH_TRACE_EVENT
@ -46,17 +49,12 @@ typedef struct {
secbool ready;
// Captured tick counter when `touch_init()` was called
uint32_t init_ticks;
// Time (in ticks) when touch_get_event() was called last time
uint32_t poll_ticks;
// Time (in ticks) when the touch registers were read last time
uint32_t read_ticks;
// Set if the touch controller is currently touched
// (respectively, that we detected a touch event)
bool pressed;
// Previously reported x-coordinate
uint16_t last_x;
// Previously reported y-coordinate
uint16_t last_y;
// Last reported touch state
uint32_t state;
// Touch state machine for each task
touch_fsm_t tls[SYSTASK_MAX_TASKS];
} touch_driver_t;
@ -65,6 +63,9 @@ static touch_driver_t g_touch_driver = {
.initialized = secfalse,
};
// Forward declarations
static const syshandle_vmt_t g_touch_handle_vmt;
// Reads a subsequent registers from the FT6X36.
//
// Returns: `sectrue` if the register was read
@ -192,7 +193,7 @@ static void ft6x36_power_down(void) {
if (state == GPIO_PIN_SET) {
// 90 ms for circuitry to stabilize (being conservative)
hal_delay(90);
systick_delay_ms(90);
}
#endif
}
@ -214,7 +215,7 @@ static void ft6x36_power_up(void) {
// Wait until the circuit fully kicks-in
// (5ms is the minimum time required for the reset signal to be effective)
hal_delay(10);
systick_delay_ms(10);
// Enable intterrupt input
GPIO_InitTypeDef GPIO_InitStructure = {0};
@ -230,7 +231,7 @@ static void ft6x36_power_up(void) {
#endif
// Wait for the touch controller to boot up
hal_delay(5);
systick_delay_ms(5);
// Clear the flag indicating rising edge on INT_PIN
__HAL_GPIO_EXTI_CLEAR_FLAG(TOUCH_INT_PIN);
@ -316,28 +317,29 @@ secbool touch_init(void) {
goto cleanup;
}
driver->init_ticks = hal_ticks_ms();
driver->poll_ticks = driver->init_ticks;
if (!syshandle_register(SYSHANDLE_TOUCH, &g_touch_handle_vmt, driver)) {
goto cleanup;
}
driver->init_ticks = systick_ms();
driver->read_ticks = driver->init_ticks;
driver->initialized = sectrue;
return sectrue;
cleanup:
i2c_bus_close(driver->i2c_bus);
ft6x36_power_down();
memset(driver, 0, sizeof(touch_driver_t));
touch_deinit();
return secfalse;
}
void touch_deinit(void) {
touch_driver_t* driver = &g_touch_driver;
syshandle_unregister(SYSHANDLE_TOUCH);
i2c_bus_close(driver->i2c_bus);
if (sectrue == driver->initialized) {
i2c_bus_close(driver->i2c_bus);
ft6x36_power_down();
memset(driver, 0, sizeof(touch_driver_t));
}
memset(driver, 0, sizeof(touch_driver_t));
}
void touch_power_set(bool on) {
@ -355,7 +357,7 @@ secbool touch_ready(void) {
if (sectrue == driver->initialized && sectrue != driver->ready) {
// FT6X36 does not report events for 300ms
// after it is released from the reset state
if ((int)(hal_ticks_ms() - driver->init_ticks) >= 310) {
if ((int)(systick_ms() - driver->init_ticks) >= 310) {
driver->ready = sectrue;
}
}
@ -386,7 +388,7 @@ uint8_t touch_get_version(void) {
// to read the firmware version. If we try to read too soon, we get 0x00
// and the chip behaves unpredictably.
while (sectrue != touch_ready()) {
hal_delay(1);
systick_delay_ms(1);
}
ft6x36_wake_up(driver->i2c_bus);
@ -442,7 +444,7 @@ void trace_regs(uint8_t* regs) {
event = '-';
}
uint32_t time = hal_ticks_ms() % 10000;
uint32_t time = systicks_ms() % 10000;
printf("%04ld [gesture=%02X, nb_touches=%d, flags=%c, x=%3d, y=%3d]\r\n",
time, gesture, nb_touches, event, x, y);
@ -461,17 +463,16 @@ void trace_event(uint32_t event) {
uint32_t time = hal_ticks_ms() % 10000;
printf("%04ld [event=%c, x=%3d, y=%3d]\r\n", time, event_type, x, y);
systask_id_t task_id = systask_id(systask_active());
printf("%04ld [task=%d, event=%c, x=%3d, y=%3d]\r\n", time, task_id,
event_type, x, y);
}
#endif
uint32_t touch_get_event(void) {
touch_driver_t* driver = &g_touch_driver;
if (sectrue != driver->initialized) {
return 0;
}
// Reads touch registers and returns the last touch event
// (state of touch registers) the controller is reporting.
static uint32_t touch_get_state(touch_driver_t* driver) {
// Content of registers 0x00 - 0x06 read from the touch controller
uint8_t regs[7];
@ -485,18 +486,16 @@ uint32_t touch_get_event(void) {
uint32_t ticks = hal_ticks_ms();
// Test if the touch_get_event() is starving (not called frequently enough)
bool starving = (int32_t)(ticks - driver->poll_ticks) > 300 /* ms */;
driver->poll_ticks = ticks;
// Test if the touch controller is polled too frequently
// (less than 20ms since the last read)
bool toofast = (int32_t)(ticks - driver->read_ticks) < 20 /* ms */;
// Fast track: if there is no new event and the touch controller
// is not touched, we do not need to read the registers
if (!ft6x36_test_and_clear_interrupt() && (!driver->pressed || toofast)) {
return 0;
bool pressed = (driver->state & TOUCH_START) || (driver->state & TOUCH_MOVE);
if (!ft6x36_test_and_clear_interrupt() && (!pressed || toofast)) {
return driver->state;
}
driver->read_ticks = ticks;
@ -537,71 +536,35 @@ uint32_t touch_get_event(void) {
ft6x36_panel_correction(x_raw, y_raw, &x, &y);
uint32_t event = 0;
uint32_t state = 0;
uint32_t xy = touch_pack_xy(x, y);
if ((nb_touches == 1) && (flags == FT6X63_EVENT_PRESS_DOWN)) {
if (!driver->pressed) {
// Finger was just pressed down
event = TOUCH_START | xy;
} else {
if ((x != driver->last_x) || (y != driver->last_y)) {
// It looks like we have missed the lift up event
// We should send the TOUCH_END event here with old coordinates
event = TOUCH_END | touch_pack_xy(driver->last_x, driver->last_y);
} else {
// We have received the same coordinates as before,
// probably this is the same start event, or a quick bounce,
// we should ignore it.
}
}
state = TOUCH_START | xy;
} else if ((nb_touches == 1) && (flags == FT6X63_EVENT_CONTACT)) {
if (driver->pressed) {
if ((x != driver->last_x) || (y != driver->last_y)) {
// Report the move event only if the coordinates
// have changed
event = TOUCH_MOVE | xy;
}
} else {
// We have missed the press down event, we have to simulate it.
// But ensure we don't simulate TOUCH_START if touch_get_event() is not
// called frequently enough to not produce false events.
if (!starving) {
event = TOUCH_START | xy;
}
}
state = TOUCH_MOVE | xy;
} else if ((nb_touches == 0) && (flags == FT6X63_EVENT_LIFT_UP)) {
if (driver->pressed) {
// Finger was just lifted up
event = TOUCH_END | xy;
} else {
if (!starving && ((x != driver->last_x) || (y != driver->last_y))) {
// We have missed the PRESS_DOWN event.
// Report the start event only if the coordinates
// have changed and driver is not starving.
// This suggests that the previous touch was very short,
// or/and the driver is not called very frequently.
event = TOUCH_START | xy;
} else {
// Either the driver is starving or the coordinates
// have not changed, which would suggest that the TOUCH_END
// is repeated, so no event is needed -this should not happen
// since two consecutive LIFT_UPs are not possible due to
// testing the interrupt line before reading the registers.
}
}
state = TOUCH_END | xy;
}
// remember the last state
if ((event & TOUCH_START) || (event & TOUCH_MOVE)) {
driver->pressed = true;
} else if (event & TOUCH_END) {
driver->pressed = false;
driver->state = state;
return state;
}
uint32_t touch_get_event(void) {
touch_driver_t* driver = &g_touch_driver;
if (sectrue != driver->initialized) {
return 0;
}
driver->last_x = x;
driver->last_y = y;
touch_fsm_t* fsm = &driver->tls[systask_id(systask_active())];
uint32_t touch_state = touch_get_state(driver);
uint32_t event = touch_fsm_get_event(fsm, touch_state);
#ifdef TOUCH_TRACE_EVENT
trace_event(event);
@ -610,4 +573,41 @@ uint32_t touch_get_event(void) {
return event;
}
static void on_task_created(void* context, systask_id_t task_id) {
touch_driver_t* driver = (touch_driver_t*)context;
touch_fsm_t* fsm = &driver->tls[task_id];
touch_fsm_init(fsm);
}
static void on_event_poll(void* context, bool read_awaited,
bool write_awaited) {
touch_driver_t* driver = (touch_driver_t*)context;
UNUSED(write_awaited);
if (read_awaited) {
uint32_t touch_state = touch_get_state(driver);
if (touch_state != 0) {
syshandle_signal_read_ready(SYSHANDLE_TOUCH, &touch_state);
}
}
}
static bool on_check_read_ready(void* context, systask_id_t task_id,
void* param) {
touch_driver_t* driver = (touch_driver_t*)context;
touch_fsm_t* fsm = &driver->tls[task_id];
uint32_t touch_state = *(uint32_t*)param;
return touch_fsm_event_ready(fsm, touch_state);
}
static const syshandle_vmt_t g_touch_handle_vmt = {
.task_created = on_task_created,
.task_killed = NULL,
.check_read_ready = on_check_read_ready,
.check_write_ready = NULL,
.poll = on_event_poll,
};
#endif // KERNEL_MODE

5
core/embed/io/touch/ft6x36/ft6x36.h
View File

@ -17,8 +17,7 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _TOUCH_FT6X36_H
#define _TOUCH_FT6X36_H
#pragma once
// I2C address of the FT6X36 on the I2C bus.
#define FT6X36_I2C_ADDR 0x38
@ -71,5 +70,3 @@
// ------------------------------------------------------------
#define FT6X36_GESTURE_NONE 0x00
#endif

131
core/embed/io/touch/sitronix/sitronix.c
View File

@ -658,6 +658,9 @@ __attribute__((optimize("-O0"))) int32_t SITRONIX_DetectTouch(
*
******************************************************************************
*/
#include "sitronix.h"
/* TS instances */
#define TS_INSTANCES_NBR 1U
#define TS_TOUCH_NBR 10U
@ -671,13 +674,6 @@ __attribute__((optimize("-O0"))) int32_t SITRONIX_DetectTouch(
/** @defgroup STM32U5x9J_DISCOVERY_TS_Exported_Types TS Exported Types
* @{
*/
typedef struct {
uint32_t Width; /* Screen width */
uint32_t Height; /* Screen height */
uint32_t Orientation; /* Touch screen orientation */
uint32_t Accuracy; /* Expressed in pixel and means the x or y difference vs
old position to consider the new values valid */
} TS_Init_t;
typedef struct {
uint8_t MultiTouch;
@ -687,12 +683,6 @@ typedef struct {
uint32_t MaxYl;
} TS_Capabilities_t;
typedef struct {
uint32_t TouchDetected;
uint32_t TouchX;
uint32_t TouchY;
} TS_State_t;
typedef struct {
uint32_t TouchDetected;
uint32_t TouchX[2];
@ -1206,119 +1196,4 @@ static int32_t SITRONIX_Probe(uint32_t Instance) {
* @}
*/
#include <trezor_rtl.h>
#include <io/touch.h>
// Touch driver
typedef struct {
// Set if driver is initialized
secbool initialized;
// Last lower-level driver state
TS_State_t prev_state;
} touch_driver_t;
// Touch driver instance
static touch_driver_t g_touch_driver = {
.initialized = secfalse,
};
secbool touch_init(void) {
touch_driver_t *driver = &g_touch_driver;
if (sectrue != driver->initialized) {
TS_Init_t TsInit;
/* Initialize the TouchScreen */
TsInit.Width = 480;
TsInit.Height = 480;
TsInit.Orientation = 0;
TsInit.Accuracy = 10;
BSP_TS_Init(0, &TsInit);
driver->initialized = sectrue;
}
return driver->initialized;
}
void touch_deinit(void) {
touch_driver_t *driver = &g_touch_driver;
if (sectrue == driver->initialized) {
BSP_TS_DeInit(0);
memset(driver, 0, sizeof(touch_driver_t));
}
}
void touch_power_set(bool on) {
// Not implemented for the discovery kit
}
secbool touch_ready(void) {
touch_driver_t *driver = &g_touch_driver;
return driver->initialized;
}
secbool touch_set_sensitivity(uint8_t value) {
// Not implemented for the discovery kit
return sectrue;
}
uint8_t touch_get_version(void) {
// Not implemented for the discovery kit
return 0;
}
secbool touch_activity(void) {
touch_driver_t *driver = &g_touch_driver;
if (sectrue != driver->initialized) {
return secfalse;
}
TS_State_t new_state = {0};
BSP_TS_GetState(0, &new_state);
return sitronix_touching ? sectrue : secfalse;
}
uint32_t touch_get_event(void) {
touch_driver_t *driver = &g_touch_driver;
if (sectrue != driver->initialized) {
return 0;
}
TS_State_t new_state = {0};
BSP_TS_GetState(0, &new_state);
new_state.TouchDetected = (sitronix_touching != 0);
new_state.TouchX = new_state.TouchX > 120 ? new_state.TouchX - 120 : 0;
new_state.TouchY = new_state.TouchY > 120 ? new_state.TouchY - 120 : 0;
uint32_t event = 0;
if (new_state.TouchDetected && !driver->prev_state.TouchDetected) {
uint32_t xy = touch_pack_xy(new_state.TouchX, new_state.TouchY);
event = TOUCH_START | xy;
} else if (!new_state.TouchDetected && driver->prev_state.TouchDetected) {
uint32_t xy =
touch_pack_xy(driver->prev_state.TouchX, driver->prev_state.TouchY);
event = TOUCH_END | xy;
} else if (new_state.TouchDetected) {
if ((new_state.TouchX != driver->prev_state.TouchX) ||
(new_state.TouchY != driver->prev_state.TouchY)) {
uint32_t xy = touch_pack_xy(new_state.TouchX, new_state.TouchY);
event = TOUCH_MOVE | xy;
}
}
driver->prev_state = new_state;
return event;
}
#endif

34
core/embed/io/touch/sitronix/sitronix.h Normal file
View File

@ -0,0 +1,34 @@
#pragma once
// TS orientations
#define TS_ORIENTATION_PORTRAIT 0U
#define TS_ORIENTATION_LANDSCAPE 1U
#define TS_ORIENTATION_PORTRAIT_ROT180 2U
#define TS_ORIENTATION_LANDSCAPE_ROT180 3U
typedef struct {
// Screen width
uint32_t Width;
// Screen width
uint32_t Height;
// Touch screen orientation
uint32_t Orientation;
// Expressed in pixel and means the x or y difference vs
// old position to consider the new values valid
uint32_t Accuracy;
} TS_Init_t;
typedef struct {
uint32_t TouchDetected;
uint32_t TouchX;
uint32_t TouchY;
} TS_State_t;
extern uint8_t sitronix_touching;
int32_t BSP_TS_Init(uint32_t Instance, TS_Init_t *TS_Init);
int32_t BSP_TS_DeInit(uint32_t Instance);
int32_t BSP_TS_GetState(uint32_t Instance, TS_State_t *TS_State);

210
core/embed/io/touch/sitronix/touch.c Normal file
View File

@ -0,0 +1,210 @@
/*
* This file is part of the Trezor project, https://trezor.io/
*
* Copyright (c) SatoshiLabs
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef KERNEL_MODE
#include <trezor_rtl.h>
#include <io/touch.h>
#include <sys/sysevent_source.h>
#include "../touch_fsm.h"
#include "sitronix.h"
// Touch driver
typedef struct {
// Set if driver is initialized
secbool initialized;
// Last reported touch state
uint32_t state;
// Touch state machine for each task
touch_fsm_t tls[SYSTASK_MAX_TASKS];
} touch_driver_t;
// Touch driver instance
static touch_driver_t g_touch_driver = {
.initialized = secfalse,
};
// Forward declarations
static const syshandle_vmt_t g_touch_handle_vmt;
secbool touch_init(void) {
touch_driver_t* drv = &g_touch_driver;
if (sectrue == drv->initialized) {
// The driver is already initialized
return sectrue;
}
TS_Init_t TsInit;
// Initialize the TouchScreen
TsInit.Width = 480;
TsInit.Height = 480;
TsInit.Orientation = 0;
TsInit.Accuracy = 2;
if (0 != BSP_TS_Init(0, &TsInit)) {
goto cleanup;
}
if (!syshandle_register(SYSHANDLE_TOUCH, &g_touch_handle_vmt, drv)) {
goto cleanup;
}
drv->initialized = sectrue;
return sectrue;
cleanup:
touch_deinit();
return secfalse;
}
void touch_deinit(void) {
touch_driver_t* drv = &g_touch_driver;
BSP_TS_DeInit(0);
syshandle_unregister(SYSHANDLE_TOUCH);
memset(drv, 0, sizeof(touch_driver_t));
}
void touch_power_set(bool on) {
// Not implemented for the discovery kit
}
secbool touch_ready(void) {
touch_driver_t* drv = &g_touch_driver;
return drv->initialized;
}
secbool touch_set_sensitivity(uint8_t value) {
// Not implemented for the discovery kit
return sectrue;
}
uint8_t touch_get_version(void) {
// Not implemented for the discovery kit
return 0;
}
secbool touch_activity(void) {
touch_driver_t* drv = &g_touch_driver;
if (sectrue != drv->initialized) {
return secfalse;
}
TS_State_t new_state = {0};
BSP_TS_GetState(0, &new_state);
return sitronix_touching ? sectrue : secfalse;
}
static uint32_t touch_get_state(touch_driver_t* drv) {
TS_State_t ts = {0};
BSP_TS_GetState(0, &ts);
uint32_t state = drv->state;
ts.TouchDetected = sitronix_touching ? 1 : 0;
ts.TouchX = ts.TouchX > 120 ? ts.TouchX - 120 : 0;
ts.TouchY = ts.TouchY > 120 ? ts.TouchY - 120 : 0;
uint32_t xy = touch_pack_xy(ts.TouchX, ts.TouchY);
if (ts.TouchDetected) {
if ((drv->state & TOUCH_END) || (drv->state == 0)) {
state = TOUCH_START | xy;
} else if (drv->state & TOUCH_MOVE) {
state = TOUCH_MOVE | xy;
} else {
state = TOUCH_START | xy;
if (state != drv->state) {
state = TOUCH_MOVE | xy;
}
}
} else {
if (drv->state & (TOUCH_START | TOUCH_MOVE)) {
state = drv->state & ~(TOUCH_START | TOUCH_MOVE);
state |= TOUCH_END;
}
}
drv->state = state;
return state;
}
uint32_t touch_get_event(void) {
touch_driver_t* drv = &g_touch_driver;
if (sectrue != drv->initialized) {
return 0;
}
touch_fsm_t* fsm = &drv->tls[systask_id(systask_active())];
uint32_t touch_state = touch_get_state(drv);
uint32_t event = touch_fsm_get_event(fsm, touch_state);
return event;
}
static void on_task_created(void* context, systask_id_t task_id) {
touch_driver_t* drv = (touch_driver_t*)context;
touch_fsm_t* fsm = &drv->tls[task_id];
touch_fsm_init(fsm);
}
static void on_event_poll(void* context, bool read_awaited,
bool write_awaited) {
touch_driver_t* drv = (touch_driver_t*)context;
UNUSED(write_awaited);
if (read_awaited) {
uint32_t touch_state = touch_get_state(drv);
if (touch_state != 0) {
syshandle_signal_read_ready(SYSHANDLE_TOUCH, &touch_state);
}
}
}
static bool on_check_read_ready(void* context, systask_id_t task_id,
void* param) {
touch_driver_t* drv = (touch_driver_t*)context;
touch_fsm_t* fsm = &drv->tls[task_id];
uint32_t touch_state = *(uint32_t*)param;
return touch_fsm_event_ready(fsm, touch_state);
}
static const syshandle_vmt_t g_touch_handle_vmt = {
.task_created = on_task_created,
.task_killed = NULL,
.check_read_ready = on_check_read_ready,
.check_write_ready = NULL,
.poll = on_event_poll,
};
#endif // KERNEL_MODE

219
core/embed/io/touch/stmpe811/stmpe811.c
View File

@ -17,13 +17,13 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <trezor_bsp.h>
#include <trezor_rtl.h>
#ifdef KERNEL_MODE
#include <io/i2c_bus.h>
#include <io/touch.h>
#include <sys/systick.h>
#include "stmpe811.h"
/* Chip IDs */
@ -175,7 +175,7 @@
uint32_t I2cxTimeout =
I2Cx_TIMEOUT_MAX; /*<! Value of Timeout when I2C communication fails */
static i2c_bus_t *i2c_bus = NULL;
static i2c_bus_t *g_i2c_bus = NULL;
/**
* @brief Writes a value in a register of the device through BUS.
@ -199,7 +199,7 @@ static void I2Cx_WriteData(uint8_t Addr, uint8_t Reg, uint8_t Value) {
.ops = ops,
};
i2c_status_t status = i2c_bus_submit_and_wait(i2c_bus, &pkt);
i2c_status_t status = i2c_bus_submit_and_wait(g_i2c_bus, &pkt);
(void)status;
}
@ -233,7 +233,7 @@ static void I2Cx_WriteBuffer(uint8_t Addr, uint8_t Reg, uint8_t *pBuffer,
.ops = ops,
};
i2c_status_t status = i2c_bus_submit_and_wait(i2c_bus, &pkt);
i2c_status_t status = i2c_bus_submit_and_wait(g_i2c_bus, &pkt);
(void)status;
}
@ -267,7 +267,7 @@ static uint8_t I2Cx_ReadData(uint8_t Addr, uint8_t Reg) {
.ops = ops,
};
i2c_status_t status = i2c_bus_submit_and_wait(i2c_bus, &pkt);
i2c_status_t status = i2c_bus_submit_and_wait(g_i2c_bus, &pkt);
(void)status;
@ -304,7 +304,7 @@ static uint8_t I2Cx_ReadBuffer(uint8_t Addr, uint8_t Reg, uint8_t *pBuffer,
.ops = ops,
};
i2c_status_t status = i2c_bus_submit_and_wait(i2c_bus, &pkt);
i2c_status_t status = i2c_bus_submit_and_wait(g_i2c_bus, &pkt);
return status == I2C_STATUS_OK ? 0 : 1;
}
@ -356,7 +356,7 @@ uint16_t IOE_ReadMultiple(uint8_t Addr, uint8_t Reg, uint8_t *pBuffer,
* @brief IOE Delay.
* @param Delay in ms
*/
void IOE_Delay(uint32_t Delay) { HAL_Delay(Delay); }
void IOE_Delay(uint32_t Delay) { systick_delay_ms(Delay); }
/**
* @brief Enable the AF for the selected IO pin(s).
@ -462,7 +462,9 @@ void touch_set_mode(void) {
* @param DeviceAddr: Device address on communication Bus.
* @retval None
*/
void stmpe811_Reset() {
void stmpe811_Reset(i2c_bus_t *i2c_bus) {
g_i2c_bus = i2c_bus;
/* Power Down the stmpe811 */
IOE_Write(TS_I2C_ADDRESS, STMPE811_REG_SYS_CTRL1, 2);
@ -477,7 +479,7 @@ void stmpe811_Reset() {
IOE_Delay(2);
}
static uint32_t touch_active(void) {
uint32_t touch_active(void) {
uint8_t state;
uint8_t ret = 0;
@ -523,174 +525,81 @@ void stmpe811_TS_GetXY(uint16_t *X, uint16_t *Y) {
/* Enable the FIFO again */
IOE_Write(TS_I2C_ADDRESS, STMPE811_REG_FIFO_STA, 0x00);
}
typedef struct {
uint16_t TouchDetected;
uint16_t X;
uint16_t Y;
uint16_t Z;
} TS_StateTypeDef;
/**
* @brief Returns status and positions of the touch screen.
* @param TsState: Pointer to touch screen current state structure
*/
void BSP_TS_GetState(TS_StateTypeDef *TsState) {
static bool _detected = false;
static uint32_t _x = 0, _y = 0;
uint16_t xDiff, yDiff, x, y, xr, yr;
TsState->TouchDetected = touch_active();
TsState->TouchDetected = _detected;
TsState->X = _x;
TsState->Y = _y;
if (TsState->TouchDetected) {
stmpe811_TS_GetXY(&x, &y);
bool detected = (IOE_Read(TS_I2C_ADDRESS, STMPE811_REG_TSC_CTRL) &
STMPE811_TS_CTRL_STATUS) != 0;
/* Y value first correction */
y -= 360;
if (!detected) {
TsState->TouchDetected = _detected = false;
return;
} else {
if (IOE_Read(TS_I2C_ADDRESS, STMPE811_REG_FIFO_SIZE) > 0) {
stmpe811_TS_GetXY(&x, &y);
/* Y value second correction */
yr = y / 11;
/* Y value first correction */
y -= 360;
/* Return y position value */
if (yr <= 0) {
yr = 0;
} else if (yr > 320) {
yr = 320 - 1;
} else {
yr = 320 - yr;
}
y = yr;
/* Y value second correction */
yr = y / 11;
/* X value first correction */
if (x <= 3000) {
x = 3870 - x;
} else {
x = 3800 - x;
}
/* Return y position value */
if (yr <= 0) {
yr = 0;
} else if (yr > 320) {
yr = 320 - 1;
} else {
yr = 320 - yr;
}
y = yr;
/* X value second correction */
xr = x / 15;
/* X value first correction */
if (x <= 3000) {
x = 3870 - x;
} else {
x = 3800 - x;
}
/* Return X position value */
if (xr <= 0) {
xr = 0;
} else if (xr > 240) {
xr = 240 - 1;
} else {
}
/* X value second correction */
xr = x / 15;
x = xr;
xDiff = x > _x ? (x - _x) : (_x - x);
yDiff = y > _y ? (y - _y) : (_y - y);
/* Return X position value */
if (xr <= 0) {
xr = 0;
} else if (xr > 240) {
xr = 240 - 1;
} else {
}
if (xDiff + yDiff > 5) {
_x = x;
_y = y;
}
x = xr;
xDiff = x > _x ? (x - _x) : (_x - x);
yDiff = y > _y ? (y - _y) : (_y - y);
/* Update the X position */
TsState->X = _x;
if (xDiff + yDiff > 5) {
_x = x;
_y = y;
}
/* Update the Y position */
TsState->Y = _y;
}
}
_detected = true;
typedef struct {
// Set if driver is initialized
secbool initialized;
// Last lower-level driver state
TS_StateTypeDef prev_state;
/* Update the X position */
TsState->X = _x;
} touch_driver_t;
// Touch driver instance
static touch_driver_t g_touch_driver = {
.initialized = secfalse,
};
secbool touch_init(void) {
touch_driver_t *driver = &g_touch_driver;
if (driver->initialized != sectrue) {
i2c_bus = i2c_bus_open(TOUCH_I2C_INSTANCE);
if (i2c_bus == NULL) {
return secfalse;
}
stmpe811_Reset();
touch_set_mode();
driver->initialized = sectrue;
}
return driver->initialized;
}
void touch_deinit(void) {
touch_driver_t *driver = &g_touch_driver;
if (driver->initialized == sectrue) {
// Not implemented properly
i2c_bus_close(i2c_bus);
memset(driver, 0, sizeof(touch_driver_t));
}
}
void touch_power_set(bool on) {
// Not implemented for the discovery kit
}
secbool touch_ready(void) {
touch_driver_t *driver = &g_touch_driver;
return driver->initialized;
}
secbool touch_set_sensitivity(uint8_t value) {
// Not implemented for the discovery kit
return sectrue;
}
uint8_t touch_get_version(void) {
// Not implemented for the discovery kit
return 0;
}
secbool touch_activity(void) {
uint8_t state = ((IOE_Read(TS_I2C_ADDRESS, STMPE811_REG_TSC_CTRL) &
(uint8_t)STMPE811_TS_CTRL_STATUS) == (uint8_t)0x80);
return state > 0 ? sectrue : secfalse;
}
uint32_t touch_get_event(void) {
touch_driver_t *driver = &g_touch_driver;
if (driver->initialized != sectrue) {
return 0;
}
TS_StateTypeDef new_state = {0};
BSP_TS_GetState(&new_state);
uint32_t event = 0;
if (new_state.TouchDetected && !driver->prev_state.TouchDetected) {
uint32_t xy = touch_pack_xy(new_state.X, new_state.Y);
event = TOUCH_START | xy;
} else if (!new_state.TouchDetected && driver->prev_state.TouchDetected) {
uint32_t xy = touch_pack_xy(driver->prev_state.X, driver->prev_state.Y);
event = TOUCH_END | xy;
} else if (new_state.TouchDetected) {
if ((new_state.X != driver->prev_state.X) ||
(new_state.Y != driver->prev_state.Y)) {
uint32_t xy = touch_pack_xy(new_state.X, new_state.Y);
event = TOUCH_MOVE | xy;
/* Update the Y position */
TsState->Y = _y;
}
}
driver->prev_state = new_state;
return event;
}
#endif

39
core/embed/io/touch/stmpe811/stmpe811.h
View File

@ -1,6 +1,39 @@
/*
* This file is part of the Trezor project, https://trezor.io/
*
* Copyright (c) SatoshiLabs
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#ifndef _STMPE811_H
#define _STMPE811_H
#include <trezor_types.h>
#endif //_STMPE811_H
#include <io/i2c_bus.h>
typedef struct {
uint16_t TouchDetected;
uint16_t X;
uint16_t Y;
uint16_t Z;
} TS_StateTypeDef;
void BSP_TS_GetState(TS_StateTypeDef *TsState);
void stmpe811_Reset(i2c_bus_t *i2c_bus);
void touch_set_mode(void);
uint32_t touch_active(void);

199
core/embed/io/touch/stmpe811/touch.c Normal file
View File

@ -0,0 +1,199 @@
/*
* This file is part of the Trezor project, https://trezor.io/
*
* Copyright (c) SatoshiLabs
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <trezor_bsp.h>
#include <trezor_rtl.h>
#ifdef KERNEL_MODE
#include <io/touch.h>
#include <sys/sysevent_source.h>
#include "../touch_fsm.h"
#include "stmpe811.h"
typedef struct {
// Set if driver is initialized
secbool initialized;
// I2C Bus driver
i2c_bus_t* i2c_bus;
// Last reported touch state
uint32_t state;
// Touch state machine for each task
touch_fsm_t tls[SYSTASK_MAX_TASKS];
} touch_driver_t;
// Touch driver instance
static touch_driver_t g_touch_driver = {
.initialized = secfalse,
};
// Forward declarations
static const syshandle_vmt_t g_touch_handle_vmt;
secbool touch_init(void) {
touch_driver_t* drv = &g_touch_driver;
if (drv->initialized == sectrue) {
return sectrue;
}
memset(drv, 0, sizeof(drv));
drv->i2c_bus = i2c_bus_open(TOUCH_I2C_INSTANCE);
if (drv->i2c_bus == NULL) {
goto cleanup;
}
if (!syshandle_register(SYSHANDLE_TOUCH, &g_touch_handle_vmt, drv)) {
goto cleanup;
}
stmpe811_Reset(drv->i2c_bus);
touch_set_mode();
drv->initialized = sectrue;
return sectrue;
cleanup:
touch_deinit();
return secfalse;
}
void touch_deinit(void) {
touch_driver_t* drv = &g_touch_driver;
syshandle_unregister(SYSHANDLE_TOUCH);
i2c_bus_close(drv->i2c_bus);
memset(drv, 0, sizeof(touch_driver_t));
}
void touch_power_set(bool on) {
// Not implemented for the discovery kit
}
secbool touch_ready(void) {
touch_driver_t* drv = &g_touch_driver;
return drv->initialized;
}
secbool touch_set_sensitivity(uint8_t value) {
// Not implemented for the discovery kit
return sectrue;
}
uint8_t touch_get_version(void) {
// Not implemented for the discovery kit
return 0;
}
secbool touch_activity(void) {
return touch_active() ? sectrue : secfalse;
/* uint8_t state = ((IOE_Read(TS_I2C_ADDRESS, STMPE811_REG_TSC_CTRL) &
(uint8_t)STMPE811_TS_CTRL_STATUS) == (uint8_t)0x80);
return state > 0 ? sectrue : secfalse;*/
}
static uint32_t touch_get_state(touch_driver_t* drv) {
TS_StateTypeDef ts = {0};
BSP_TS_GetState(&ts);
uint32_t state = drv->state;
uint32_t xy = touch_pack_xy(ts.X, ts.Y);
if (ts.TouchDetected) {
if ((drv->state & TOUCH_END) || (drv->state == 0)) {
state = TOUCH_START | xy;
} else if (drv->state & TOUCH_MOVE) {
state = TOUCH_MOVE | xy;
} else {
state = TOUCH_START | xy;
if (state != drv->state) {
state = TOUCH_MOVE | xy;
}
}
} else {
if (drv->state & (TOUCH_START | TOUCH_MOVE)) {
state = drv->state & ~(TOUCH_START | TOUCH_MOVE);
state |= TOUCH_END;
}
}
drv->state = state;
return state;
}
uint32_t touch_get_event(void) {
touch_driver_t* drv = &g_touch_driver;
if (sectrue != drv->initialized) {
return 0;
}
touch_fsm_t* fsm = &drv->tls[systask_id(systask_active())];
uint32_t touch_state = touch_get_state(drv);
uint32_t event = touch_fsm_get_event(fsm, touch_state);
return event;
}
static void on_task_created(void* context, systask_id_t task_id) {
touch_driver_t* drv = (touch_driver_t*)context;
touch_fsm_t* fsm = &drv->tls[task_id];
touch_fsm_init(fsm);
}
static void on_event_poll(void* context, bool read_awaited,
bool write_awaited) {
touch_driver_t* drv = (touch_driver_t*)context;
UNUSED(write_awaited);
if (read_awaited) {
uint32_t touch_state = touch_get_state(drv);
if (touch_state != 0) {
syshandle_signal_read_ready(SYSHANDLE_TOUCH, &touch_state);
}
}
}
static bool on_check_read_ready(void* context, systask_id_t task_id,
void* param) {
touch_driver_t* drv = (touch_driver_t*)context;
touch_fsm_t* fsm = &drv->tls[task_id];
uint32_t touch_state = *(uint32_t*)param;
return touch_fsm_event_ready(fsm, touch_state);
}
static const syshandle_vmt_t g_touch_handle_vmt = {
.task_created = on_task_created,
.task_killed = NULL,
.check_read_ready = on_check_read_ready,
.check_write_ready = NULL,
.poll = on_event_poll,
};
#endif // KERNEL_MODE

118
core/embed/io/touch/touch_fsm.c Normal file
View File

@ -0,0 +1,118 @@
/*
* This file is part of the Trezor project, https://trezor.io/
*
* Copyright (c) SatoshiLabs
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef KERNEL_MODE
#include <trezor_rtl.h>
#include <io/touch.h>
#include <sys/systick.h>
#include "touch_fsm.h"
void touch_fsm_init(touch_fsm_t* fsm) {
memset(fsm, 0, sizeof(touch_fsm_t));
fsm->update_ticks = systick_ms();
}
bool touch_fsm_event_ready(touch_fsm_t* fsm, uint32_t touch_state) {
return fsm->state != touch_state;
}
uint32_t touch_fsm_get_event(touch_fsm_t* fsm, uint32_t touch_state) {
fsm->state = touch_state;
uint32_t ticks = hal_ticks_ms();
// Test if the touch_get_event() is starving (not called frequently enough)
bool starving = (int32_t)(ticks - fsm->update_ticks) > 300 /* ms */;
fsm->update_ticks = ticks;
uint16_t x = touch_unpack_x(touch_state);
uint16_t y = touch_unpack_y(touch_state);
uint32_t event = 0;
uint32_t xy = touch_pack_xy(x, y);
if (touch_state & TOUCH_START) {
if (!fsm->pressed) {
// Finger was just pressed down
event = TOUCH_START | xy;
} else {
if ((x != fsm->last_x) || (y != fsm->last_y)) {
// It looks like we have missed the lift up event
// We should send the TOUCH_END event here with old coordinates
event = TOUCH_END | touch_pack_xy(fsm->last_x, fsm->last_y);
} else {
// We have received the same coordinates as before,
// probably this is the same start event, or a quick bounce,
// we should ignore it.
}
}
} else if (touch_state & TOUCH_MOVE) {
if (fsm->pressed) {
if ((x != fsm->last_x) || (y != fsm->last_y)) {
// Report the move event only if the coordinates
// have changed
event = TOUCH_MOVE | xy;
}
} else {
// We have missed the press down event, we have to simulate it.
// But ensure we don't simulate TOUCH_START if touch_get_event() is not
// called frequently enough to not produce false events.
if (!starving) {
event = TOUCH_START | xy;
}
}
} else if (touch_state & TOUCH_END) {
if (fsm->pressed) {
// Finger was just lifted up
event = TOUCH_END | xy;
} else {
if (!starving && ((x != fsm->last_x) || (y != fsm->last_y))) {
// We have missed the PRESS_DOWN event.
// Report the start event only if the coordinates
// have changed and driver is not starving.
// This suggests that the previous touch was very short,
// or/and the driver is not called very frequently.
event = TOUCH_START | xy;
} else {
// Either the driver is starving or the coordinates
// have not changed, which would suggest that the TOUCH_END
// is repeated, so no event is needed -this should not happen
// since two consecutive LIFT_UPs are not possible due to
// testing the interrupt line before reading the registers.
}
}
}
// remember the last state
if ((event & TOUCH_START) || (event & TOUCH_MOVE)) {
fsm->pressed = true;
} else if (event & TOUCH_END) {
fsm->pressed = false;
}
fsm->last_x = x;
fsm->last_y = y;
return event;
}
#endif // KERNEL_MODE

63
core/embed/io/touch/touch_fsm.h Normal file
View File

@ -0,0 +1,63 @@
/*
* This file is part of the Trezor project, https://trezor.io/
*
* Copyright (c) SatoshiLabs
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
// This module is a simple finite state machine for touch events.
//
// It is designed to be used in a polling loop, where the state of the touch
// is read periodically. The module keeps track of the state changes and
// provides a simple interface to get the events that happened since the last
// call to touch_fsm_get_event().
//
// The benefit of using this module is that it can properly handle situations
// when the touch panel is not read frequently enough or when some
// touch events are missed.
//
// The structure is designed to be used in a multi-threaded environment, where
// each thread has its own state machine. The state machines are stored in an
// array indexed by the task ID.
typedef struct {
// Time (in ticks) when the tls was last updated
uint32_t update_ticks;
// Last reported touch state
uint32_t state;
// Set if the touch controller is currently touched
// (respectively, that we detected a touch event)
bool pressed;
// Previously reported x-coordinate
uint16_t last_x;
// Previously reported y-coordinate
uint16_t last_y;
} touch_fsm_t;
// Initializes button finite state machine
void touch_fsm_init(touch_fsm_t* fsm);
// Checks if touch_fsm_get_event() would return `true` on the next call
bool touch_fsm_event_ready(touch_fsm_t* fsm, uint32_t touch_state);
// Processes the new state of thetouch panel and fills the event structure.
//
// `touch_state` is the current state of the touch panel. The state has
// the same format as the return value of `touch_get_state()`.
//
// Returns `true` if the event structure was filled.
uint32_t touch_fsm_get_event(touch_fsm_t* fsm, uint32_t touch_state);

340
core/embed/io/touch/unix/touch.c
View File

@ -20,9 +20,12 @@
#include <trezor_bsp.h>
#include <trezor_rtl.h>
#include <SDL.h>
#include <io/touch.h>
#include <sys/sysevent_source.h>
#include <sys/systick.h>
#include <sys/unix/sdl_event.h>
#include "../touch_fsm.h"
extern int sdl_display_res_x, sdl_display_res_y;
extern int sdl_touch_offset_x, sdl_touch_offset_y;
@ -41,11 +44,7 @@ typedef enum {
IDLE,
MOUSE_DOWN_INSIDE,
MOUSE_DOWN_OUTSIDE,
BUTTON_SWIPE_LEFT_INITIATED,
BUTTON_SWIPE_RIGHT_INITIATED,
BUTTON_SWIPE_UP_INITIATED,
BUTTON_SWIPE_DOWN_INITIATED,
BUTTON_SWIPE_COMPLETED
BUTTON_SWIPE_INITIATED,
} touch_state_t;
typedef struct {
@ -53,9 +52,18 @@ typedef struct {
secbool initialized;
// Current state of the touch driver
touch_state_t state;
// Last valid coordinates
int last_x;
int last_y;
uint32_t swipe_time;
int swipe_start_x;
int swipe_start_y;
int swipe_end_x;
int swipe_end_y;
int swipe_key;
// Last event not yet read
uint32_t last_event;
// Touch state machine for each task
touch_fsm_t tls[SYSTASK_MAX_TASKS];
} touch_driver_t;
@ -64,153 +72,164 @@ static touch_driver_t g_touch_driver = {
.initialized = secfalse,
};
// Forward declarations
static const syshandle_vmt_t g_touch_handle_vmt;
static bool is_inside_display(int x, int y) {
return x >= sdl_touch_offset_x && y >= sdl_touch_offset_y &&
x - sdl_touch_offset_x < sdl_display_res_x &&
y - sdl_touch_offset_y < sdl_display_res_y;
}
static bool is_button_swipe_initiated(const touch_driver_t* driver) {
return driver->state == BUTTON_SWIPE_LEFT_INITIATED ||
driver->state == BUTTON_SWIPE_RIGHT_INITIATED ||
driver->state == BUTTON_SWIPE_UP_INITIATED ||
driver->state == BUTTON_SWIPE_DOWN_INITIATED;
}
static void handle_mouse_events(touch_driver_t* drv, SDL_Event* event) {
bool inside_display = is_inside_display(event->button.x, event->button.y);
static void handle_mouse_events(touch_driver_t* driver, SDL_Event event,
int* ev_type, int* ev_x, int* ev_y) {
bool inside_display = is_inside_display(event.button.x, event.button.y);
switch (event.type) {
switch (event->type) {
case SDL_MOUSEBUTTONDOWN:
if (inside_display) {
*ev_x = event.button.x - sdl_touch_offset_x;
*ev_y = event.button.y - sdl_touch_offset_y;
*ev_type = TOUCH_START;
driver->state = MOUSE_DOWN_INSIDE;
int x = event->button.x - sdl_touch_offset_x;
int y = event->button.y - sdl_touch_offset_y;
drv->last_event = TOUCH_START | touch_pack_xy(x, y);
drv->state = MOUSE_DOWN_INSIDE;
}
break;
case SDL_MOUSEBUTTONUP:
if (driver->state != IDLE) {
*ev_x = inside_display ? event.button.x - sdl_touch_offset_x
: driver->last_x;
*ev_y = inside_display ? event.button.y - sdl_touch_offset_y
: driver->last_y;
*ev_type = TOUCH_END;
driver->state = IDLE;
if (drv->state != IDLE) {
int x = inside_display ? event->button.x - sdl_touch_offset_x
: touch_unpack_x(drv->last_event);
int y = inside_display ? event->button.y - sdl_touch_offset_y
: touch_unpack_y(drv->last_event);
;
drv->last_event = TOUCH_END | touch_pack_xy(x, y);
drv->state = IDLE;
}
break;
case SDL_MOUSEMOTION:
if (driver->state != IDLE) {
if (drv->state != IDLE) {
if (inside_display) {
*ev_x = event.motion.x - sdl_touch_offset_x;
*ev_y = event.motion.y - sdl_touch_offset_y;
int x = event->motion.x - sdl_touch_offset_x;
int y = event->motion.y - sdl_touch_offset_y;
// simulate TOUCH_START if pressed in mouse returned on visible area
*ev_type =
(driver->state == MOUSE_DOWN_OUTSIDE) ? TOUCH_START : TOUCH_MOVE;
driver->state = MOUSE_DOWN_INSIDE;
} else {
if (driver->state == MOUSE_DOWN_INSIDE) {
// use last valid coordinates and simulate TOUCH_END
*ev_x = driver->last_x;
*ev_y = driver->last_y;
*ev_type = TOUCH_END;
if (drv->state == MOUSE_DOWN_OUTSIDE) {
drv->last_event = TOUCH_START | touch_pack_xy(x, y);
} else {
drv->last_event = TOUCH_MOVE | touch_pack_xy(x, y);
}
driver->state = MOUSE_DOWN_OUTSIDE;
drv->state = MOUSE_DOWN_INSIDE;
} else {
if (drv->state == MOUSE_DOWN_INSIDE) {
// use last valid coordinates and simulate TOUCH_END
int x = touch_unpack_x(drv->last_event);
int y = touch_unpack_y(drv->last_event);
drv->last_event = TOUCH_END | touch_pack_xy(x, y);
}
drv->state = MOUSE_DOWN_OUTSIDE;
}
}
break;
}
}
static void handle_button_events(touch_driver_t* driver, SDL_Event event,
int* ev_type, int* ev_x, int* ev_y) {
static void handle_button_events(touch_driver_t* drv, SDL_Event* event) {
// Handle arrow buttons to trigger a scroll movement by set length in the
// direction of the button
if (event.type == SDL_KEYDOWN && !event.key.repeat &&
!is_button_swipe_initiated(driver)) {
switch (event.key.keysym.sym) {
case SDLK_LEFT:
*ev_x = _btn_swipe_begin;
*ev_y = sdl_display_res_y / 2;
*ev_type = TOUCH_START;
driver->state = BUTTON_SWIPE_LEFT_INITIATED;
break;
case SDLK_RIGHT:
*ev_x = sdl_display_res_x - _btn_swipe_begin;
*ev_y = sdl_display_res_y / 2;
*ev_type = TOUCH_START;
driver->state = BUTTON_SWIPE_RIGHT_INITIATED;
break;
case SDLK_UP:
*ev_x = sdl_display_res_x / 2;
*ev_y = _btn_swipe_begin;
*ev_type = TOUCH_START;
driver->state = BUTTON_SWIPE_UP_INITIATED;
break;
case SDLK_DOWN:
*ev_x = sdl_display_res_x / 2;
*ev_y = sdl_display_res_y - _btn_swipe_begin;
*ev_type = TOUCH_START;
driver->state = BUTTON_SWIPE_DOWN_INITIATED;
break;
if (event->type == SDL_KEYDOWN && !event->key.repeat) {
if (drv->state != BUTTON_SWIPE_INITIATED) {
switch (event->key.keysym.sym) {
case SDLK_LEFT:
drv->swipe_start_x = _btn_swipe_begin;
drv->swipe_start_y = sdl_display_res_y / 2;
drv->swipe_end_x = drv->swipe_start_x + _btn_swipe_length;
drv->swipe_end_y = drv->swipe_start_y;
drv->state = BUTTON_SWIPE_INITIATED;
break;
case SDLK_RIGHT:
drv->swipe_start_x = sdl_display_res_x - _btn_swipe_begin;
drv->swipe_start_y = sdl_display_res_y / 2;
drv->swipe_end_x = drv->swipe_start_x - _btn_swipe_length;
drv->swipe_end_y = drv->swipe_start_y;
drv->state = BUTTON_SWIPE_INITIATED;
break;
case SDLK_UP:
drv->swipe_start_x = sdl_display_res_x / 2;
drv->swipe_start_y = _btn_swipe_begin;
drv->swipe_end_x = drv->swipe_start_x;
drv->swipe_end_y = drv->swipe_start_y + _btn_swipe_length;
drv->state = BUTTON_SWIPE_INITIATED;
break;
case SDLK_DOWN:
drv->swipe_start_x = sdl_display_res_x / 2;
drv->swipe_start_y = sdl_display_res_y - _btn_swipe_begin;
drv->swipe_end_x = drv->swipe_start_x;
drv->swipe_end_y = drv->swipe_start_y - _btn_swipe_length;
drv->state = BUTTON_SWIPE_INITIATED;
break;
}
if (drv->state == BUTTON_SWIPE_INITIATED) {
drv->swipe_key = event->key.keysym.sym;
drv->swipe_time = systick_ms();
drv->last_event =
TOUCH_START | touch_pack_xy(drv->swipe_start_x, drv->swipe_start_y);
}
}
} else if (event.type == SDL_KEYUP && driver->state != IDLE) {
switch (event.key.keysym.sym) {
case SDLK_LEFT:
if (driver->state == BUTTON_SWIPE_LEFT_INITIATED) {
*ev_x = _btn_swipe_begin + _btn_swipe_length;
*ev_y = sdl_display_res_y / 2;
*ev_type = TOUCH_MOVE;
driver->state = BUTTON_SWIPE_COMPLETED;
}
break;
case SDLK_RIGHT:
if (driver->state == BUTTON_SWIPE_RIGHT_INITIATED) {
*ev_x = sdl_display_res_x - _btn_swipe_begin - _btn_swipe_length;
*ev_y = sdl_display_res_y / 2;
*ev_type = TOUCH_MOVE;
driver->state = BUTTON_SWIPE_COMPLETED;
}
break;
case SDLK_UP:
if (driver->state == BUTTON_SWIPE_UP_INITIATED) {
*ev_x = sdl_display_res_x / 2;
*ev_y = _btn_swipe_begin + _btn_swipe_length;
*ev_type = TOUCH_MOVE;
driver->state = BUTTON_SWIPE_COMPLETED;
}
break;
case SDLK_DOWN:
if (driver->state == BUTTON_SWIPE_DOWN_INITIATED) {
*ev_x = sdl_display_res_x / 2;
*ev_y = sdl_display_res_y - _btn_swipe_begin - _btn_swipe_length;
*ev_type = TOUCH_MOVE;
driver->state = BUTTON_SWIPE_COMPLETED;
}
break;
} else if (event->type == SDL_KEYUP &&
event->key.keysym.sym == drv->swipe_key) {
if (drv->state == BUTTON_SWIPE_INITIATED) {
drv->last_event =
TOUCH_END | touch_pack_xy(drv->swipe_end_x, drv->swipe_end_y);
drv->state = IDLE;
}
}
}
// Called from global event loop to filter and process SDL events
static void touch_sdl_event_filter(void* context, SDL_Event* sdl_event) {
touch_driver_t* drv = (touch_driver_t*)context;
if (drv->state == IDLE || drv->state == MOUSE_DOWN_INSIDE ||
drv->state == MOUSE_DOWN_OUTSIDE) {
handle_mouse_events(drv, sdl_event);
}
if (drv->state == IDLE || drv->state == BUTTON_SWIPE_INITIATED) {
handle_button_events(drv, sdl_event);
}
}
secbool touch_init(void) {
touch_driver_t* driver = &g_touch_driver;
touch_driver_t* drv = &g_touch_driver;
if (driver->initialized != sectrue) {
memset(driver, 0, sizeof(touch_driver_t));
driver->state = IDLE;
driver->initialized = sectrue;
if (drv->initialized) {
return sectrue;
}
return driver->initialized;
memset(drv, 0, sizeof(touch_driver_t));
drv->state = IDLE;
if (!syshandle_register(SYSHANDLE_TOUCH, &g_touch_handle_vmt, drv)) {
goto cleanup;
}
if (!sdl_events_register(touch_sdl_event_filter, drv)) {
goto cleanup;
}
drv->initialized = sectrue;
return drv->initialized;
cleanup:
return secfalse;
}
void touch_deinit(void) {
touch_driver_t* driver = &g_touch_driver;
touch_driver_t* drv = &g_touch_driver;
if (driver->initialized == sectrue) {
memset(driver, 0, sizeof(touch_driver_t));
if (drv->initialized == sectrue) {
syshandle_unregister(SYSHANDLE_TOUCH);
memset(drv, 0, sizeof(touch_driver_t));
}
}
@ -219,8 +238,8 @@ void touch_power_set(bool on) {
}
secbool touch_ready(void) {
touch_driver_t* driver = &g_touch_driver;
return driver->initialized;
touch_driver_t* drv = &g_touch_driver;
return drv->initialized;
}
secbool touch_set_sensitivity(uint8_t value) {
@ -241,37 +260,74 @@ secbool touch_activity(void) {
}
}
uint32_t touch_get_state(touch_driver_t* drv) {
sdl_events_poll();
if (drv->state == BUTTON_SWIPE_INITIATED) {
if (drv->last_event & TOUCH_START) {
// Emulate swipe by sending MOVE event after 100ms
uint32_t time_delta = systick_ms() - drv->swipe_time;
if (time_delta > 100) {
int x = (drv->swipe_start_x + drv->swipe_end_x) / 2;
int y = (drv->swipe_start_y + drv->swipe_end_y) / 2;
drv->last_event = TOUCH_MOVE | touch_pack_xy(x, y);
}
}
}
return drv->last_event;
}
uint32_t touch_get_event(void) {
touch_driver_t* driver = &g_touch_driver;
if (driver->initialized != sectrue) {
if (sectrue != driver->initialized) {
return 0;
}
if (driver->state == BUTTON_SWIPE_COMPLETED) {
driver->state = IDLE;
return TOUCH_END | touch_pack_xy(driver->last_x, driver->last_y);
}
touch_fsm_t* fsm = &driver->tls[systask_id(systask_active())];
SDL_Event event;
uint32_t touch_state = touch_get_state(driver);
int ev_x = 0;
int ev_y = 0;
int ev_type = 0;
uint32_t event = touch_fsm_get_event(fsm, touch_state);
while (SDL_PollEvent(&event) > 0) {
if (driver->state == IDLE || driver->state == MOUSE_DOWN_INSIDE ||
driver->state == MOUSE_DOWN_OUTSIDE) {
handle_mouse_events(driver, event, &ev_type, &ev_x, &ev_y);
}
if (driver->state == IDLE || is_button_swipe_initiated(driver)) {
handle_button_events(driver, event, &ev_type, &ev_x, &ev_y);
}
if (ev_type != 0) {
driver->last_x = ev_x;
driver->last_y = ev_y;
}
}
return ev_type | touch_pack_xy(ev_x, ev_y);
return event;
}
static void on_task_created(void* context, systask_id_t task_id) {
touch_driver_t* dr = (touch_driver_t*)context;
touch_fsm_t* fsm = &dr->tls[task_id];
touch_fsm_init(fsm);
}
static void on_event_poll(void* context, bool read_awaited,
bool write_awaited) {
touch_driver_t* drv = (touch_driver_t*)context;
UNUSED(write_awaited);
if (read_awaited) {
uint32_t touch_state = touch_get_state(drv);
if (touch_state != 0) {
syshandle_signal_read_ready(SYSHANDLE_TOUCH, &touch_state);
}
}
}
static bool on_check_read_ready(void* context, systask_id_t task_id,
void* param) {
touch_driver_t* drv = (touch_driver_t*)context;
touch_fsm_t* fsm = &drv->tls[task_id];
uint32_t touch_state = *(uint32_t*)param;
return touch_fsm_event_ready(fsm, touch_state);
}
static const syshandle_vmt_t g_touch_handle_vmt = {
.task_created = on_task_created,
.task_killed = NULL,
.check_read_ready = on_check_read_ready,
.check_write_ready = NULL,
.poll = on_event_poll,
};

2
core/site_scons/models/D001/discovery.py
View File

@ -72,6 +72,8 @@ def configure(
if "input" in features_wanted:
sources += ["embed/io/i2c_bus/stm32f4/i2c_bus.c"]
sources += ["embed/io/touch/stmpe811/stmpe811.c"]
sources += ["embed/io/touch/stmpe811/touch.c"]
sources += ["embed/io/touch/touch_fsm.c"]
paths += ["embed/io/i2c_bus/inc"]
paths += ["embed/io/touch/inc"]
features_available.append("touch")

2
core/site_scons/models/D002/discovery2.py
View File

@ -55,7 +55,9 @@ def configure(
if "input" in features_wanted:
sources += ["embed/io/i2c_bus/stm32u5/i2c_bus.c"]
sources += ["embed/io/touch/sitronix/touch.c"]
sources += ["embed/io/touch/sitronix/sitronix.c"]
sources += ["embed/io/touch/touch_fsm.c"]
paths += ["embed/io/i2c_bus/inc"]
paths += ["embed/io/touch/inc"]
features_available.append("touch")

1
core/site_scons/models/T2T1/emulator.py
View File

@ -52,6 +52,7 @@ def configure(
if "input" in features_wanted:
sources += ["embed/io/touch/unix/touch.c"]
sources += ["embed/io/touch/touch_fsm.c"]
paths += ["embed/io/touch/inc"]
features_available.append("touch")
defines += [("USE_TOUCH", "1")]

1
core/site_scons/models/T2T1/trezor_t.py
View File

@ -63,6 +63,7 @@ def configure(
if "input" in features_wanted:
sources += ["embed/io/i2c_bus/stm32f4/i2c_bus.c"]
sources += ["embed/io/touch/ft6x36/ft6x36.c"]
sources += ["embed/io/touch/touch_fsm.c"]
paths += ["embed/io/i2c_bus/inc"]
paths += ["embed/io/touch/inc"]
features_available.append("touch")

1
core/site_scons/models/T3T1/emulator.py
View File

@ -62,6 +62,7 @@ def configure(
if "input" in features_wanted:
sources += ["embed/io/touch/unix/touch.c"]
sources += ["embed/io/touch/touch_fsm.c"]
paths += ["embed/io/touch/inc"]
features_available.append("touch")
defines += [("USE_TOUCH", "1")]

1
core/site_scons/models/T3T1/trezor_t3t1_revE.py
View File

@ -66,6 +66,7 @@ def configure(
if "input" in features_wanted:
sources += ["embed/io/i2c_bus/stm32u5/i2c_bus.c"]
sources += ["embed/io/touch/ft6x36/ft6x36.c"]
sources += ["embed/io/touch/touch_fsm.c"]
sources += ["embed/io/touch/ft6x36/panels/lx154a2422cpt23.c"]
paths += ["embed/io/i2c_bus/inc"]
paths += ["embed/io/touch/inc"]

1
core/site_scons/models/T3W1/emulator.py
View File

@ -81,6 +81,7 @@ def configure(
if "input" in features_wanted:
sources += ["embed/io/touch/unix/touch.c"]
sources += ["embed/io/touch/touch_fsm.c"]
paths += ["embed/io/touch/inc"]
features_available.append("touch")
defines += [("USE_TOUCH", "1")]

1
core/site_scons/models/T3W1/trezor_t3w1_revA.py
View File

@ -60,6 +60,7 @@ def configure(
if "input" in features_wanted:
sources += ["embed/io/touch/ft6x36/ft6x36.c"]
sources += ["embed/io/touch/touch_fsm.c"]
paths += ["embed/io/touch/inc"]
features_available.append("touch")
sources += ["embed/io/button/stm32/button.c"]

1
core/site_scons/models/T3W1/trezor_t3w1_revB.py
View File

@ -60,6 +60,7 @@ def configure(
if "input" in features_wanted:
sources += ["embed/io/touch/ft6x36/ft6x36.c"]
sources += ["embed/io/touch/touch_fsm.c"]
paths += ["embed/io/touch/inc"]
features_available.append("touch")
sources += ["embed/io/button/stm32/button.c"]

1
core/site_scons/models/T3W1/trezor_t3w1_revC.py
View File

@ -60,6 +60,7 @@ def configure(
if "input" in features_wanted:
sources += ["embed/io/touch/ft6x36/ft6x36.c"]
sources += ["embed/io/touch/touch_fsm.c"]
paths += ["embed/io/touch/inc"]
features_available.append("touch")
sources += ["embed/io/button/stm32/button.c"]