tmk_core/protocol/chibios/main.c

   1 /*
   2  * (c) 2015 flabberast <s3+flabbergast@sdfeu.org>
   3  *
   4  * Based on the following work:
   5  *  - Guillaume Duc's raw hid example (MIT License)
   6  *    https://github.com/guiduc/usb-hid-chibios-example
   7  *  - PJRC Teensy examples (MIT License)
   8  *    https://www.pjrc.com/teensy/usb_keyboard.html
   9  *  - hasu's TMK keyboard code (GPL v2 and some code Modified BSD)
  10  *    https://github.com/tmk/tmk_keyboard/
  11  *  - ChibiOS demo code (Apache 2.0 License)
  12  *    http://www.chibios.org
  13  *
  14  * Since some GPL'd code is used, this work is licensed under
  15  * GPL v2 or later.
  16  */
  17
  18 #include "ch.h"
  19 #include "hal.h"
  20
  21 #include "usb_main.h"
  22
  23 /* TMK includes */
  24 #include "report.h"
  25 #include "host.h"
  26 #include "host_driver.h"
  27 #include "keyboard.h"
  28 #include "action.h"
  29 #include "action_util.h"
  30 #include "mousekey.h"
  31 #include "led.h"
  32 #include "sendchar.h"
  33 #include "debug.h"
  34 #ifdef SLEEP_LED_ENABLE
  35 #include "sleep_led.h"
  36 #endif
  37 #include "suspend.h"
  38
  39
  40 /* -------------------------
  41  *   TMK host driver defs
  42  * -------------------------
  43  */
  44
  45 /* declarations */
  46 uint8_t keyboard_leds(void);
  47 void send_keyboard(report_keyboard_t *report);
  48 void send_mouse(report_mouse_t *report);
  49 void send_system(uint16_t data);
  50 void send_consumer(uint16_t data);
  51
  52 /* host struct */
  53 host_driver_t chibios_driver = {
  54   keyboard_leds,
  55   send_keyboard,
  56   send_mouse,
  57   send_system,
  58   send_consumer
  59 };
  60
  61
  62 /* TESTING
  63  * Amber LED blinker thread, times are in milliseconds.
  64  */
  65 /* set this variable to non-zero anywhere to blink once */
  66 // uint8_t blinkLed = 0;
  67 // static THD_WORKING_AREA(waBlinkerThread, 128);
  68 // static THD_FUNCTION(blinkerThread, arg) {
  69 //   (void)arg;
  70 //   chRegSetThreadName("blinkOrange");
  71 //   while(true) {
  72 //     if(blinkLed) {
  73 //       blinkLed = 0;
  74 //       palSetPad(TEENSY_PIN13_IOPORT, TEENSY_PIN13);
  75 //       chThdSleepMilliseconds(100);
  76 //       palClearPad(TEENSY_PIN13_IOPORT, TEENSY_PIN13);
  77 //     }
  78 //     chThdSleepMilliseconds(100);
  79 //   }
  80 // }
  81
  82
  83
  84 /* Main thread
  85  */
  86 int main(void) {
  87   /* ChibiOS/RT init */
  88   halInit();
  89   chSysInit();
  90
  91   // TESTING
  92   // chThdCreateStatic(waBlinkerThread, sizeof(waBlinkerThread), NORMALPRIO, blinkerThread, NULL);
  93
  94   /* Init USB */
  95   init_usb_driver(&USB_DRIVER);
  96
  97   /* init printf */
  98   init_printf(NULL,sendchar_pf);
  99
 100   /* Wait until the USB is active */
 101   while(USB_DRIVER.state != USB_ACTIVE)
 102     chThdSleepMilliseconds(50);
 103
 104   /* Do need to wait here!
 105    * Otherwise the next print might start a transfer on console EP
 106    * before the USB is completely ready, which sometimes causes
 107    * HardFaults.
 108    */
 109   chThdSleepMilliseconds(50);
 110
 111   print("USB configured.\n");
 112
 113   /* init TMK modules */
 114   keyboard_init();
 115   host_set_driver(&chibios_driver);
 116
 117 #ifdef SLEEP_LED_ENABLE
 118   sleep_led_init();
 119 #endif
 120
 121   print("Keyboard start.\n");
 122
 123   /* Main loop */
 124   while(true) {
 125
 126     if(USB_DRIVER.state == USB_SUSPENDED) {
 127       print("[s]");
 128       while(USB_DRIVER.state == USB_SUSPENDED) {
 129         /* Do this in the suspended state */
 130         suspend_power_down(); // on AVR this deep sleeps for 15ms
 131         /* Remote wakeup */
 132         if((USB_DRIVER.status & 2) && suspend_wakeup_condition()) {
 133           send_remote_wakeup(&USB_DRIVER);
 134         }
 135       }
 136       /* Woken up */
 137       // variables has been already cleared by the wakeup hook
 138       send_keyboard_report();
 139 #ifdef MOUSEKEY_ENABLE
 140       mousekey_send();
 141 #endif /* MOUSEKEY_ENABLE */
 142     }
 143
 144     keyboard_task();
 145   }
 146 }