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touch: Proper init

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This patch applies the simpler init from HOS driver.

The most important change is enabling a feature that the fw supports:
Automatic tuning and calibration based on saved tuning values (running HOS only once saves these).
This commit is contained in:
CTCaer 2020-03-13 08:39:38 +02:00
parent 95e3159fe9
commit 8539095bdb
2 changed files with 23 additions and 28 deletions
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50
nyx/nyx_gui/input/touch.c
View file

@ -33,14 +33,11 @@
#include "../gfx/gfx.h"
#define DPRINTF(...) gfx_printf(__VA_ARGS__)
static int touch_command(u8 cmd)
static int touch_command(u8 cmd, u8 *buf, u8 size)
{
int err = i2c_send_byte(I2C_3, STMFTS_I2C_ADDR, cmd, 0);
if (!err)
int res = i2c_send_buf_small(I2C_3, STMFTS_I2C_ADDR, cmd, buf, size);
if (!res)
return 1;
// TODO: Check for completion in event loop
msleep(1);
return 0;
}
@ -100,7 +97,7 @@ static void _touch_parse_event(touch_event *event)
case STMFTS_EV_MULTI_TOUCH_ENTER:
case STMFTS_EV_MULTI_TOUCH_MOTION:
_touch_process_contact_event(event, true);
if (event->z > 52 && event->z < 255) // Discard noisy hover touch and palm rest.
if (event->z < 255) // Reject palm rest.
event->touch = true;
else
{
@ -193,31 +190,30 @@ int touch_power_on()
i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_LDO6_CFG2,
MAX77620_LDO_CFG2_ADE_ENABLE | (3 << 3) | (MAX77620_POWER_MODE_NORMAL << MAX77620_LDO_POWER_MODE_SHIFT));
msleep(20);
msleep(10);
// Initialize touchscreen module.
if (touch_command(STMFTS_SYSTEM_RESET))
u8 cmd[3] = { 0, 0x28, 0x80 }; // System reset cmd.
if (touch_command(STMFTS_WRITE_REG, cmd, 3))
return 0;
msleep(10);
while (true)
{
u8 tmp = 0;
i2c_recv_buf_small(&tmp, 1, I2C_3, STMFTS_I2C_ADDR, STMFTS_READ_ONE_EVENT);
if (tmp == STMFTS_EV_CONTROLLER_READY)
break;
}
cmd[0] = 1;
if (touch_command(STMFTS_AUTO_CALIBRATION, cmd, 1))
return 0;
if (touch_command(STMFTS_SLEEP_OUT))
if (touch_command(STMFTS_MS_MT_SENSE_ON, NULL, 0))
return 0;
if (touch_command(STMFTS_MS_CX_TUNING))
return 0;
if (touch_command(STMFTS_SS_CX_TUNING))
return 0;
if (touch_command(STMFTS_FULL_FORCE_CALIBRATION))
return 0;
if (touch_command(STMFTS_MS_MT_SENSE_ON))
return 0;
if (touch_command(STMFTS_SS_HOVER_SENSE_OFF))
return 0;
if (touch_command(STMFTS_MS_KEY_SENSE_OFF))
if (touch_command(STMFTS_CLEAR_EVENT_STACK, NULL, 0))
return 0;
return 1;
@ -225,8 +221,6 @@ int touch_power_on()
void touch_power_off()
{
touch_command(STMFTS_SLEEP_IN);
// Disable touchscreen power.
gpio_write(GPIO_PORT_J, GPIO_PIN_7, GPIO_LOW);

1
nyx/nyx_gui/input/touch.h
View file

@ -46,6 +46,7 @@
#define STMFTS_SS_CX_TUNING 0xA4
#define STMFTS_RELEASEINFO 0xAA
#define STMFTS_WRITE_REG 0xB6
#define STMFTS_AUTO_CALIBRATION 0xC3
#define STMFTS_NOISE_WRITE 0xC7
#define STMFTS_NOISE_READ 0xC8
#define STMFTS_RW_FB_REG 0xD0 // read data