93 lines
2.5 KiB
C
93 lines
2.5 KiB
C
#include <avr/interrupt.h>
|
|
#include <avr/pgmspace.h>
|
|
#include "usb_keycodes.h"
|
|
#include "usb_keyboard.h"
|
|
#include "print.h"
|
|
#include "debug.h"
|
|
#include "util.h"
|
|
#include "host.h"
|
|
|
|
|
|
// protocol setting from the host. We use exactly the same report
|
|
// either way, so this variable only stores the setting since we
|
|
// are required to be able to report which setting is in use.
|
|
uint8_t usb_keyboard_protocol=1;
|
|
|
|
// the idle configuration, how often we send the report to the
|
|
// host (ms * 4) even when it hasn't changed
|
|
uint8_t usb_keyboard_idle_config=125;
|
|
|
|
// count until idle timeout
|
|
uint8_t usb_keyboard_idle_count=0;
|
|
|
|
// 1=num lock, 2=caps lock, 4=scroll lock, 8=compose, 16=kana
|
|
volatile uint8_t usb_keyboard_leds=0;
|
|
|
|
|
|
static inline int8_t send_report(report_keyboard_t *report, uint8_t endpoint, uint8_t keys_start, uint8_t keys_end);
|
|
|
|
|
|
int8_t usb_keyboard_send_report(report_keyboard_t *report)
|
|
{
|
|
int8_t result = 0;
|
|
|
|
#ifdef USB_NKRO_ENABLE
|
|
if (keyboard_nkro)
|
|
result = send_report(report, KBD2_ENDPOINT, 0, KBD2_REPORT_KEYS);
|
|
else
|
|
#endif
|
|
{
|
|
if (usb_keyboard_protocol)
|
|
result = send_report(report, KBD_ENDPOINT, 0, KBD_REPORT_KEYS);
|
|
else
|
|
result = send_report(report, KBD_ENDPOINT, 0, 6);
|
|
}
|
|
|
|
if (result) return result;
|
|
usb_keyboard_idle_count = 0;
|
|
usb_keyboard_print_report(report);
|
|
return 0;
|
|
}
|
|
|
|
void usb_keyboard_print_report(report_keyboard_t *report)
|
|
{
|
|
if (!debug_keyboard) return;
|
|
print("keys: ");
|
|
for (int i = 0; i < REPORT_KEYS; i++) { phex(report->keys[i]); print(" "); }
|
|
print(" mods: "); phex(report->mods); print("\n");
|
|
}
|
|
|
|
|
|
static inline int8_t send_report(report_keyboard_t *report, uint8_t endpoint, uint8_t keys_start, uint8_t keys_end)
|
|
{
|
|
uint8_t intr_state, timeout;
|
|
|
|
if (!usb_configured()) return -1;
|
|
intr_state = SREG;
|
|
cli();
|
|
UENUM = endpoint;
|
|
timeout = UDFNUML + 50;
|
|
while (1) {
|
|
// are we ready to transmit?
|
|
if (UEINTX & (1<<RWAL)) break;
|
|
SREG = intr_state;
|
|
// has the USB gone offline?
|
|
if (!usb_configured()) return -1;
|
|
// have we waited too long?
|
|
if (UDFNUML == timeout) return -1;
|
|
// get ready to try checking again
|
|
intr_state = SREG;
|
|
cli();
|
|
UENUM = endpoint;
|
|
}
|
|
UEDATX = report->mods;
|
|
if (!keyboard_nkro)
|
|
UEDATX = 0;
|
|
for (uint8_t i = keys_start; i < keys_end; i++) {
|
|
UEDATX = report->keys[i];
|
|
}
|
|
UEINTX = 0x3A;
|
|
SREG = intr_state;
|
|
return 0;
|
|
}
|