132 lines
3.5 KiB
C
132 lines
3.5 KiB
C
// Copyright 2020 Christopher Courtney, aka Drashna Jael're (@drashna) <drashna@live.com>
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "drashna.h"
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userspace_config_t userspace_config;
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/**
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* @brief Handle registering a keycode, with optional modifer based on timed event
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*
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* @param code keycode to send to host
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* @param mod_code modifier to send with code, if held for tapping term or longer
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* @param pressed the press/release event (can use "record->event.pressed" for this)
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* @return true exits function
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* @return false exits function
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*/
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bool mod_key_press_timer(uint16_t code, uint16_t mod_code, bool pressed) {
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static uint16_t this_timer;
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mod_key_press(code, mod_code, pressed, this_timer);
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return false;
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}
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/**
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* @brief Handle registation of keycode, with optional modifier based on custom timer
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*
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* @param code keycode to send to host
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* @param mod_code modifier keycode to send with code, if held for tapping term or longer
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* @param pressed the press/release event
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* @param this_timer custom timer to use
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* @return true
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* @return false
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*/
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bool mod_key_press(uint16_t code, uint16_t mod_code, bool pressed, uint16_t this_timer) {
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if (pressed) {
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this_timer = timer_read();
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} else {
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if (timer_elapsed(this_timer) < TAPPING_TERM) {
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tap_code(code);
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} else {
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register_code(mod_code);
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tap_code(code);
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unregister_code(mod_code);
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}
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}
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return false;
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}
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/**
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* @brief Performs exact match for modifier values
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*
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* @param value the modifer varible (get_mods/get_oneshot_mods/get_weak_mods)
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* @param mask the modifier mask to check for
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* @return true Has the exact modifiers specifed
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* @return false Does not have the exact modifiers specified
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*/
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bool hasAllBitsInMask(uint8_t value, uint8_t mask) {
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value &= 0xF;
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mask &= 0xF;
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return (value & mask) == mask;
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}
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/**
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* @brief Tap keycode, with no mods
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*
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* @param kc keycode to use
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*/
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void tap_code16_nomods(uint16_t kc) {
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uint8_t temp_mod = get_mods();
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clear_mods();
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clear_oneshot_mods();
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tap_code16(kc);
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set_mods(temp_mod);
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}
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#ifdef I2C_SCANNER_ENABLE
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# include "i2c_master.h"
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# include "debug.h"
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# ifndef I2C_SCANNER_TIMEOUT
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# define I2C_SCANNER_TIMEOUT 50
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# endif
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i2c_status_t i2c_start_bodge(uint8_t address, uint16_t timeout) {
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i2c_start(address);
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// except on ChibiOS where the only way is do do "something"
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uint8_t data = 0;
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return i2c_readReg(address, 0, &data, sizeof(data), I2C_SCANNER_TIMEOUT);
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}
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# define i2c_start i2c_start_bodge
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void do_scan(void) {
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uint8_t nDevices = 0;
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dprintf("Scanning...\n");
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for (uint8_t address = 1; address < 127; address++) {
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// The i2c_scanner uses the return value of
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// i2c_start to see if a device did acknowledge to the address.
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i2c_status_t error = i2c_start(address << 1, I2C_SCANNER_TIMEOUT);
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if (error == I2C_STATUS_SUCCESS) {
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i2c_stop();
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xprintf(" I2C device found at address 0x%02X\n", I2C_SCANNER_TIMEOUT);
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nDevices++;
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} else {
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// dprintf(" Unknown error (%u) at address 0x%02X\n", error, address);
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}
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}
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if (nDevices == 0)
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xprintf("No I2C devices found\n");
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else
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xprintf("done\n");
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}
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uint16_t scan_timer = 0;
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void matrix_scan_i2c(void) {
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if (timer_elapsed(scan_timer) > 5000) {
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do_scan();
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scan_timer = timer_read();
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}
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}
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void keyboard_post_init_i2c(void) {
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i2c_init();
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scan_timer = timer_read();
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}
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#endif
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