task_led.c

   1 /**
   2  * @file task_led.c
   3  * @author Shinichiro Nakamura
   4  * @brief LEDタスクの実装(task_led)
   5  * @details
   6  * LEDタスクはLEDの点灯を制御するタスクである。
   7  * 点灯は各タスクから次のマクロのみで指示することができる。
   8  * LEDMSG(target, control);
   9  */
  10
  11 #include <LPC17xx.h>
  12 #include <kernel.h>
  13 #include <t_syslog.h>
  14
  15 #include "kernel_cfg.h"
  16 #include "task_led.h"
  17 #include "led.h"
  18
  19 #define MSG_CONTROL(n) (((n) & 0x0080) ? 1 : 0)
  20 #define MSG_TARGET(n) ((n) & 0x000F)
  21
  22 void task_led(intptr_t exinf)
  23 {
  24     uint16_t msg;
  25     led_init();
  26     while(1)
  27     {
  28         if (rcv_dtq(DTQ_LED, (intptr_t *)&msg) == E_OK) {
  29             switch (MSG_TARGET(msg)) {
  30                 case DBLED0:
  31                     led_debug_write(0, MSG_CONTROL(msg));
  32                     break;
  33                 case DBLED1:
  34                     led_debug_write(1, MSG_CONTROL(msg));
  35                     break;
  36                 case DBLED2:
  37                     led_debug_write(2, MSG_CONTROL(msg));
  38                     break;
  39                 case DBLED3:
  40                     led_debug_write(3, MSG_CONTROL(msg));
  41                     break;
  42                 case SWLED0:
  43                     led_switch_write(0, MSG_CONTROL(msg));
  44                     break;
  45                 case SWLED1:
  46                     led_switch_write(1, MSG_CONTROL(msg));
  47                     break;
  48                 case SWLED2:
  49                     led_switch_write(2, MSG_CONTROL(msg));
  50                     break;
  51                 case SWLED3:
  52                     led_switch_write(3, MSG_CONTROL(msg));
  53                     break;
  54             }
  55         }
  56         tslp_tsk(10);
  57     }
  58 }
  59