2 Copyright 2015 Jun Wako <wakojun@gmail.com>
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>.
23 #include "led_controller.h"
25 /* WARNING! This function needs to be callable from
26 * both regular threads and ISRs, unlocked (during resume-from-sleep).
27 * In particular, I2C functions (interrupt-driven) should NOT be called from here.
29 void led_set(uint8_t usb_led) {
32 // PTA5: LED (1:on/0:off)
33 GPIOA->PDDR |= (1<<1);
34 PORTA->PCR[5] |= PORTx_PCRn_DSE | PORTx_PCRn_MUX(1);
35 if (usb_led & (1<<USB_LED_CAPS_LOCK)) {
36 GPIOA->PSOR |= (1<<5);
38 GPIOA->PCOR |= (1<<5);
41 if (usb_led & (1<<USB_LED_NUM_LOCK)) {
42 // signal the LED control thread
43 chSysUnconditionalLock();
44 msg=(TOGGLE_NUM_LOCK << 8) | 1;
45 chMBPostI(&led_mailbox, msg);
46 chSysUnconditionalUnlock();
48 // signal the LED control thread
49 xprintf("NUMLOCK OFF\n");
50 chSysUnconditionalLock();
51 msg=(TOGGLE_NUM_LOCK << 8) | 0;
52 chMBPostI(&led_mailbox, msg);
53 chSysUnconditionalUnlock();
55 if (usb_led & (1<<USB_LED_CAPS_LOCK)) {
56 // signal the LED control thread
57 xprintf("CAPSLOCK ON\n");
58 chSysUnconditionalLock();
59 msg=(TOGGLE_CAPS_LOCK << 8) | 1;
60 chMBPostI(&led_mailbox, msg);
61 chSysUnconditionalUnlock();
63 // signal the LED control thread
64 chSysUnconditionalLock();
65 msg=(TOGGLE_CAPS_LOCK << 8) | 0;
66 chMBPostI(&led_mailbox, msg);
67 chSysUnconditionalUnlock();