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qmk_firmware/tmk_core/common/host.c
Nick Brassel 172e6a7030
Extensible split data sync (#11930)
* Extensible split data sync capability through transactions.

- Split common transport has been split up between the transport layer
  and data layer.
- Split "transactions" model used, with convergence between I2C and
  serial data definitions.
- Slave matrix "generation count" is used to determine if the full slave
  matrix needs to be retrieved.
- Encoders get the same "generation count" treatment.
- All other blocks of data are synchronised when a change is detected.
- All transmissions have a globally-configurable deadline before a
  transmission is forced (`FORCED_SYNC_THROTTLE_MS`, default 100ms).
- Added atomicity for all core-synced data, preventing partial updates
- Added retries to AVR i2c_master's i2c_start, to minimise the number of
  failed transactions when interrupts are disabled on the slave due to
  atomicity checks.
- Some keyboards have had slight modifications made in order to ensure
  that they still build due to firmware size restrictions.

* Fixup LED_MATRIX compile.

* Parameterise ERROR_DISCONNECT_COUNT.
2021-06-18 09:10:06 +10:00

109 lines
3.1 KiB
C

/*
Copyright 2011,2012 Jun Wako <wakojun@gmail.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdint.h>
//#include <avr/interrupt.h>
#include "keyboard.h"
#include "keycode.h"
#include "host.h"
#include "util.h"
#include "debug.h"
#ifdef NKRO_ENABLE
# include "keycode_config.h"
extern keymap_config_t keymap_config;
#endif
static host_driver_t *driver;
static uint16_t last_system_report = 0;
static uint16_t last_consumer_report = 0;
void host_set_driver(host_driver_t *d) { driver = d; }
host_driver_t *host_get_driver(void) { return driver; }
#ifdef SPLIT_KEYBOARD
uint8_t split_led_state = 0;
void set_split_host_keyboard_leds(uint8_t led_state) { split_led_state = led_state; }
#endif
uint8_t host_keyboard_leds(void) {
#ifdef SPLIT_KEYBOARD
if (!is_keyboard_master()) return split_led_state;
#endif
if (!driver) return 0;
return (*driver->keyboard_leds)();
}
led_t host_keyboard_led_state(void) { return (led_t)host_keyboard_leds(); }
/* send report */
void host_keyboard_send(report_keyboard_t *report) {
if (!driver) return;
#if defined(NKRO_ENABLE) && defined(NKRO_SHARED_EP)
if (keyboard_protocol && keymap_config.nkro) {
/* The callers of this function assume that report->mods is where mods go in.
* But report->nkro.mods can be at a different offset if core keyboard does not have a report ID.
*/
report->nkro.mods = report->mods;
report->nkro.report_id = REPORT_ID_NKRO;
} else
#endif
{
#ifdef KEYBOARD_SHARED_EP
report->report_id = REPORT_ID_KEYBOARD;
#endif
}
(*driver->send_keyboard)(report);
if (debug_keyboard) {
dprint("keyboard_report: ");
for (uint8_t i = 0; i < KEYBOARD_REPORT_SIZE; i++) {
dprintf("%02X ", report->raw[i]);
}
dprint("\n");
}
}
void host_mouse_send(report_mouse_t *report) {
if (!driver) return;
#ifdef MOUSE_SHARED_EP
report->report_id = REPORT_ID_MOUSE;
#endif
(*driver->send_mouse)(report);
}
void host_system_send(uint16_t report) {
if (report == last_system_report) return;
last_system_report = report;
if (!driver) return;
(*driver->send_system)(report);
}
void host_consumer_send(uint16_t report) {
if (report == last_consumer_report) return;
last_consumer_report = report;
if (!driver) return;
(*driver->send_consumer)(report);
}
uint16_t host_last_system_report(void) { return last_system_report; }
uint16_t host_last_consumer_report(void) { return last_consumer_report; }