mirror of
https://github.com/qmk/qmk_firmware.git
synced 2024-12-21 00:53:23 +00:00
81 lines
2.0 KiB
C
81 lines
2.0 KiB
C
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/**
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* m20add.c
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*/
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#include "m20add.h"
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#include "tca6424.h"
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#include "rgb_ring.h"
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#include "i2c_master.h"
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void set_pin(uint16_t pin)
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{
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uint8_t data = tca6424_read_port(GET_PORT(pin));
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data |= ( 1 << GET_PIN(pin));
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tca6424_write_port(GET_PORT(pin), data);
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}
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void clear_pin(uint16_t pin)
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{
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uint8_t data = tca6424_read_port(GET_PORT(pin));
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data &= ~( 1 << GET_PIN(pin));
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tca6424_write_port(GET_PORT(pin), data);
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}
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uint8_t read_pin(uint16_t pin)
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{
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uint8_t data = tca6424_read_port(GET_PORT(pin));
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return (data & (1<<GET_PIN(pin))) ? 1 : 0;
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}
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void matrix_init_kb(void) {
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#ifdef RGBLIGHT_ENABLE
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rgb_ring_init();
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#endif
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matrix_init_user();
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}
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void matrix_scan_kb(void) {
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#ifdef RGBLIGHT_ENABLE
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rgb_ring_task();
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#endif
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matrix_scan_user();
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}
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static uint16_t caps_lock_pin = DEF_PIN(TCA6424_PORT2, 3);
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static uint16_t scroll_lock_pin = DEF_PIN(TCA6424_PORT0, 1);
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bool led_update_kb(led_t led_state) {
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bool res = led_update_user(led_state);
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if (res) {
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led_state.caps_lock ? set_pin(caps_lock_pin) : clear_pin(caps_lock_pin);
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led_state.scroll_lock ? set_pin(scroll_lock_pin) : clear_pin(scroll_lock_pin);
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}
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return res;
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}
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// override the default implementation to avoid re-initialization
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void i2c_init(void)
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{
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static bool initialized = false;
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if (initialized) {
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return;
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} else {
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initialized = true;
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}
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// Try releasing special pins for a short time
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palSetPadMode(I2C1_SCL_BANK, I2C1_SCL, PAL_MODE_INPUT);
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palSetPadMode(I2C1_SDA_BANK, I2C1_SDA, PAL_MODE_INPUT);
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chThdSleepMilliseconds(10);
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palSetPadMode(I2C1_SCL_BANK, I2C1_SCL, PAL_MODE_ALTERNATE(I2C1_SCL_PAL_MODE) | PAL_STM32_OTYPE_OPENDRAIN);
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palSetPadMode(I2C1_SDA_BANK, I2C1_SDA, PAL_MODE_ALTERNATE(I2C1_SDA_PAL_MODE) | PAL_STM32_OTYPE_OPENDRAIN);
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}
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#define REBOOT_MAGIC 0x41544B42
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void shutdown_user(void)
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{
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// set the magic number for resetting to the bootloader
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*(uint32_t *)(&(RTCD1.rtc->BKP0R)) = REBOOT_MAGIC;
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}
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