7a7b31e426
* T-Deck stability and naming improvements * allow main task to clean itself up * remove unused includes * various lvgl improvements * added docs
70 lines
1.9 KiB
C
70 lines
1.9 KiB
C
#include "config.h"
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#include "keyboard.h"
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#include "kernel.h"
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#include "log.h"
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#define TAG "tdeck_bootstrap"
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lv_disp_t* tdeck_init_display();
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static bool tdeck_power_on() {
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ESP_LOGI(TAG, "power on");
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gpio_config_t device_power_signal_config = {
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.pin_bit_mask = BIT64(TDECK_POWERON_GPIO),
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.mode = GPIO_MODE_OUTPUT,
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.pull_up_en = GPIO_PULLUP_DISABLE,
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.pull_down_en = GPIO_PULLDOWN_DISABLE,
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.intr_type = GPIO_INTR_DISABLE,
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};
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if (gpio_config(&device_power_signal_config) != ESP_OK) {
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return false;
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}
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if (gpio_set_level(TDECK_POWERON_GPIO, 1) != ESP_OK) {
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return false;
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}
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return true;
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}
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static bool init_i2c() {
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const i2c_config_t i2c_conf = {
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.mode = I2C_MODE_MASTER,
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.sda_io_num = GPIO_NUM_18,
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.sda_pullup_en = GPIO_PULLUP_DISABLE,
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.scl_io_num = GPIO_NUM_8,
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.scl_pullup_en = GPIO_PULLUP_DISABLE,
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.master.clk_speed = 400000
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};
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return i2c_param_config(TDECK_I2C_BUS_HANDLE, &i2c_conf) == ESP_OK
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&& i2c_driver_install(TDECK_I2C_BUS_HANDLE, i2c_conf.mode, 0, 0, 0) == ESP_OK;
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}
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bool tdeck_bootstrap() {
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if (!tdeck_power_on()) {
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TT_LOG_E(TAG, "failed to power on device");
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}
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/**
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* Without this delay, the touch driver randomly fails when the device is USB-powered:
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* > lcd_panel.io.i2c: panel_io_i2c_rx_buffer(135): i2c transaction failed
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* > GT911: touch_gt911_read_cfg(352): GT911 read error!
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* This might not be a problem with a lipo, but I haven't been able to test that.
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* I tried to solve it just like I did with the keyboard:
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* By reading from I2C until it succeeds and to then init the driver.
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* It doesn't work, because it never recovers from the error.
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*/
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TT_LOG_I(TAG, "waiting after power-on");
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tt_delay_ms(2000);
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if (!init_i2c()) {
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TT_LOG_E(TAG, "failed to init I2C");
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}
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keyboard_wait_for_response();
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return true;
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}
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