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hardware.c
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hardware.c
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#include "hardware.h"
#include <driver/gpio.h>
#include <driver/i2c.h>
#include <driver/spi_master.h>
#include <driver/i2s.h>
#include <esp_log.h>
#include "../troopers24-efuse/include/efuse.h"
#include "managed_i2c.h"
#include "pax_gfx.h"
#include "rainbow.h"
#include "st25r3911b_global.h"
static const char* TAG = "hardware";
static ST77XX dev_st77xx = {0};
static ST25R3911B dev_st25r3911b = {0};
ST25R3911B* global_st25r3911b = &dev_st25r3911b;
static Keyboard dev_keyboard = {
.i2c_bus = I2C_BUS,
.intr_pin = GPIO_INT_KEY,
.pca_addr = PCA555A_0_ADDR,
.pin_sao_presence = IO_SAO_DETECT,
};
static PCA9555* dev_io_expander = {0};
static Controller dev_controller = {0};
static KTD2052 dev_ktd2052 = {0};
static sao_detect_fn_t troopers24_cb;
static bool bsp_ready = false;
static xSemaphoreHandle i2c_semaphore = NULL;
static xSemaphoreHandle spi_semaphore = NULL;
static pax_buf_t pax_buffer;
esp_err_t sao_set_leds(uint16_t a, uint16_t b, uint16_t c, uint16_t d) {
esp_err_t res;
res = ktd2052_set_color_pax(&dev_ktd2052, 1, rainbow(a, NUM_BADGES));
if (res != ESP_OK) return res;
res = ktd2052_set_color_pax(&dev_ktd2052, 2, rainbow(b, NUM_BADGES));
if (res != ESP_OK) return res;
res = ktd2052_set_color_pax(&dev_ktd2052, 3, rainbow(c, NUM_BADGES));
if (res != ESP_OK) return res;
res = ktd2052_set_color_pax(&dev_ktd2052, 4, rainbow(d, NUM_BADGES));
if (res != ESP_OK) return res;
return ESP_OK;
}
static inline void sao_presence_change(bool connected) {
esp_err_t res;
if (connected) {
// Shitty was just connected
ESP_LOGI(TAG, "SAO: connected");
int retry = 5;
// Shot debounce
while (!ktd2052_connected(&dev_ktd2052) && retry-- > 0) {
vTaskDelay(pdMS_TO_TICKS(200));
}
if (retry > 0) {
uint16_t id = badge_id();
res = ktd2052_init(&dev_ktd2052);
if (res != ESP_OK) goto err;
res = sao_set_leds(id, id * (NUM_BADGES / 4.), id + 2. * (NUM_BADGES / 4.), id + 3. * (NUM_BADGES / 4.));
if (res != ESP_OK) goto err;
} else {
ESP_LOGI(TAG, "SAO: didn't identify as TROOPERS23 SAO. Assuming TROOPERS24");
if (troopers24_cb != NULL) {
troopers24_cb(connected);
}
}
} else {
ESP_LOGI(TAG, "SAO: disconnected");
}
return;
err:
ESP_LOGE(TAG, "Error in communication with LED controller: %d", res);
}
void controller_led_callback() {
uint8_t buf[8];
esp_fill_random(buf, 8);
uint16_t a = (((uint16_t)buf[0] << 8) + buf[1]) % NUM_BADGES;
uint16_t b = (((uint16_t)buf[2] << 8) + buf[3]) % NUM_BADGES;
uint16_t c = (((uint16_t)buf[4] << 8) + buf[5]) % NUM_BADGES;
uint16_t d = (((uint16_t)buf[6] << 8) + buf[7]) % NUM_BADGES;
sao_set_leds(a, b, c, d);
}
static esp_err_t _bus_init() {
esp_err_t res;
// I2C bus
i2c_config_t i2c_config = {.mode = I2C_MODE_MASTER,
.sda_io_num = GPIO_I2C_SDA,
.scl_io_num = GPIO_I2C_SCL,
.master.clk_speed = I2C_SPEED,
.sda_pullup_en = false,
.scl_pullup_en = false,
.clk_flags = 0};
res = i2c_param_config(I2C_BUS, &i2c_config);
if (res != ESP_OK) {
ESP_LOGE(TAG, "Configuring I2C bus parameters failed");
return res;
}
res = i2c_set_timeout(I2C_BUS, I2C_TIMEOUT * 80);
if (res != ESP_OK) {
ESP_LOGE(TAG, "Configuring I2C bus timeout failed");
return res;
}
res = i2c_driver_install(I2C_BUS, i2c_config.mode, 0, 0, 0);
if (res != ESP_OK) {
ESP_LOGE(TAG, "Initializing system I2C bus failed");
return res;
}
i2c_semaphore = xSemaphoreCreateBinary();
xSemaphoreGive(i2c_semaphore);
// SPI bus
spi_bus_config_t busConfiguration = {0};
busConfiguration.mosi_io_num = GPIO_SPI_MOSI;
busConfiguration.miso_io_num = GPIO_SPI_MISO;
busConfiguration.sclk_io_num = GPIO_SPI_CLK;
busConfiguration.quadwp_io_num = -1;
busConfiguration.quadhd_io_num = -1;
busConfiguration.max_transfer_sz = SPI_MAX_TRANSFER_SIZE;
res = spi_bus_initialize(SPI_BUS, &busConfiguration, SPI_DMA_CHANNEL);
if (res != ESP_OK) {
ESP_LOGE(TAG, "Initializing SPI bus failed");
return res;
}
spi_semaphore = xSemaphoreCreateBinary();
xSemaphoreGive(spi_semaphore);
return ESP_OK;
}
esp_err_t bsp_init() {
if (bsp_ready) return ESP_OK;
esp_err_t res;
// Interrupts
res = gpio_install_isr_service(0);
if (res != ESP_OK) {
ESP_LOGE(TAG, "Installing ISR service failed");
return res;
}
// Communication busses
res = _bus_init();
if (res != ESP_OK) return res;
// Keyboard
dev_keyboard.i2c_semaphore = i2c_semaphore;
dev_keyboard.sao_presence_cb = &sao_presence_change;
res = keyboard_init(&dev_keyboard);
if (res != ESP_OK) return res;
// IO expander
dev_io_expander = dev_keyboard.pca;
// res = pca9555_set_gpio_polarity(dev_io_expander, IO_SAO_GPIO2, PCA_INVERTED);
// if (!res) {
// return res;
// }
// SAO LED controller
dev_ktd2052.i2c_addr = KTD2052_A_ADDRESS;
dev_ktd2052.i2c_semaphore = i2c_semaphore;
res = ktd2052_init(&dev_ktd2052);
if (res != ESP_OK) {
ESP_LOGE(TAG, "Initializing ktd2052 failed");
return res;
}
pca9555_set_gpio_direction(dev_io_expander, IO_BACKLIGHT, PCA_OUTPUT);
// LCD display
dev_st77xx.spi_bus = SPI_BUS;
dev_st77xx.pin_cs = GPIO_SPI_CS_LCD;
dev_st77xx.pin_dcx = GPIO_SPI_DC_LCD;
dev_st77xx.pin_reset = GPIO_LCD_RESET;
dev_st77xx.rotation = 4;
dev_st77xx.color_mode = false; // Blue and red channels are swapped
dev_st77xx.spi_speed = SPI_SPEED_LCD;
dev_st77xx.spi_max_transfer_size = SPI_MAX_TRANSFER_SIZE;
dev_st77xx.spi_semaphore = spi_semaphore;
res = st77xx_init(&dev_st77xx);
if (res != ESP_OK) {
ESP_LOGE(TAG, "Initializing LCD failed");
return res;
}
pax_buf_init(&pax_buffer, NULL, ST77XX_WIDTH, ST77XX_HEIGHT, PAX_BUF_16_565RGB);
pax_buf_reversed(&pax_buffer, true);
dev_controller.i2c_addr = CONTROLLER_ADDRESS;
dev_controller.i2c_semaphore = i2c_semaphore;
dev_controller.need_init = false;
dev_controller.poll_delay = 50;
dev_controller.queue = dev_keyboard.queue;
res = controller_init(&dev_controller);
if (res != ESP_OK) {
ESP_LOGE(TAG, "Initializing controller failed");
return res;
}
dev_st25r3911b.spi_bus = SPI_BUS;
dev_st25r3911b.pin_cs = GPIO_SPI_CS_RFID;
dev_st25r3911b.pin_irq = GPIO_INT_RFID;
dev_st25r3911b.spi_speed = SPI_SPEED_RFID;
dev_st25r3911b.spi_semaphore = spi_semaphore;
res = st25r3911b_init(&dev_st25r3911b);
if (res != ESP_OK) {
ESP_LOGE(TAG, "Initializing NFC failed");
return res;
}
bsp_ready = true;
return ESP_OK;
}
bool key_was_pressed(Key key) {
return keyboard_key_was_pressed(get_keyboard(), key);
}
bool key_currently_pressed(Key key) {
return keyboard_key_currently_pressed(get_keyboard(), key);
}
ST77XX* get_st77xx() {
if (!bsp_ready) return NULL;
return &dev_st77xx;
}
esp_err_t st77xx_backlight(bool on) {
ESP_LOGD(TAG, "Setting backlight to %s", on ? "on" : "off");
return pca9555_set_gpio_value(dev_io_expander, IO_BACKLIGHT, on);
}
PCA9555* get_io_expander() {
if (!bsp_ready) return NULL;
return dev_io_expander;
}
Keyboard* get_keyboard() {
if (!bsp_ready) return NULL;
return &dev_keyboard;
}
esp_err_t clear_keyboard_queue() {
xQueueReset(dev_keyboard.queue);
return ESP_OK;
}
Controller* get_controller() {
if (!bsp_ready) return NULL;
return &dev_controller;
}
KTD2052* get_ktd2052() {
if (!bsp_ready) return NULL;
return &dev_ktd2052;
}
ST25R3911B* get_nfc() {
if (!bsp_ready) return NULL;
return &dev_st25r3911b;
}
esp_err_t display_flush() {
if (!bsp_ready) return ESP_FAIL;
if (!pax_is_dirty(&pax_buffer)) return ESP_OK;
// ESP_LOGI(TAG, "Flush %u to %u\n", pax_buffer.dirty_y0, pax_buffer.dirty_y1);
uint8_t* buffer = (uint8_t*) (pax_buffer.buf);
esp_err_t res = st77xx_write_partial_direct(&dev_st77xx, &buffer[pax_buffer.dirty_y0 * ST77XX_WIDTH * 2], 0, pax_buffer.dirty_y0, ST77XX_WIDTH,
pax_buffer.dirty_y1 - pax_buffer.dirty_y0 + 1);
if (res != ESP_OK) return res;
pax_mark_clean(&pax_buffer);
return res;
}
pax_buf_t* get_pax_buffer() {
if (!bsp_ready) return NULL;
return &pax_buffer;
}
void set_sao_callback_tr24(sao_detect_fn_t cb) {
troopers24_cb = cb;
}