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