keyboard/hhkb_rn42/rn42/rn42_task.c

   1 #include <stdint.h>
   2 #include "keycode.h"
   3 #include "serial.h"
   4 #include "host.h"
   5 #include "action.h"
   6 #include "action_util.h"
   7 #include "lufa.h"
   8 #include "rn42_task.h"
   9 #include "print.h"
  10 #include "timer.h"
  11 #include "command.h"
  12 #include "battery.h"
  13
  14 static bool config_mode = false;
  15 static bool force_usb = false;
  16
  17 static void status_led(bool on)
  18 {
  19     if (on) {
  20         DDRE  |=  (1<<6);
  21         PORTE &= ~(1<<6);
  22     } else {
  23         DDRE  |=  (1<<6);
  24         PORTE |=  (1<<6);
  25     }
  26 }
  27
  28 void rn42_task_init(void)
  29 {
  30     battery_init();
  31 }
  32
  33 void rn42_task(void)
  34 {
  35     int16_t c;
  36     if (config_mode) {
  37         // Config mode: print output from RN-42
  38         while ((c = serial_recv2()) != -1) {
  39             // without flow control it'll fail to receive data when flooded
  40             xprintf("%c", c);
  41         }
  42     } else {
  43         // Raw mode: interpret output report of LED state
  44         while ((c = serial_recv2()) != -1) {
  45             // LED Out report: 0xFE, 0x02, 0x01, <leds>
  46             // To get the report over UART set bit3 with SH, command.
  47             static enum {LED_INIT, LED_FE, LED_02, LED_01} state = LED_INIT;
  48             xprintf("%02X\n", c);
  49             switch (state) {
  50                 case LED_INIT:
  51                     if (c == 0xFE) state = LED_FE;
  52                     else           state = LED_INIT;
  53                     break;
  54                 case LED_FE:
  55                     if (c == 0x02) state = LED_02;
  56                     else           state = LED_INIT;
  57                     break;
  58                 case LED_02:
  59                     if (c == 0x01) state = LED_01;
  60                     else           state = LED_INIT;
  61                     break;
  62                 case LED_01:
  63                     // TODO: move to rn42.c and make accessible with keyboard_leds()
  64                     xprintf("LED status: %02X\n", c);
  65                     state = LED_INIT;
  66                     break;
  67                 default:
  68                     state = LED_INIT;
  69             }
  70         }
  71     }
  72
  73     /* Bluetooth mode when ready */
  74     if (!config_mode && !force_usb) {
  75         if (!rn42_rts() && host_get_driver() != &rn42_driver) {
  76             clear_keyboard();
  77             host_set_driver(&rn42_driver);
  78         } else if (rn42_rts() && host_get_driver() != &lufa_driver) {
  79             clear_keyboard();
  80             host_set_driver(&lufa_driver);
  81         }
  82     }
  83
  84
  85     static uint16_t prev_timer = 0;
  86     static uint8_t sec = 0;
  87     // NOTE: not exact 1 sec
  88     if (timer_elapsed(prev_timer) > 1000) {
  89         /* every second */
  90         prev_timer = timer_read();
  91
  92         /* Low voltage alert */
  93         uint8_t bs = battery_status();
  94         if (bs == LOW_VOLTAGE) {
  95             battery_led(LED_ON);
  96         } else {
  97             battery_led(LED_CHARGER);
  98         }
  99
 100         static uint8_t prev_status = UNKNOWN;
 101         if (bs != prev_status) {
 102             prev_status = bs;
 103             switch (bs) {
 104                 case FULL_CHARGED:  xprintf("FULL_CHARGED\n"); break;
 105                 case CHARGING:      xprintf("CHARGING\n"); break;
 106                 case DISCHARGING:   xprintf("DISCHARGING\n"); break;
 107                 case LOW_VOLTAGE:   xprintf("LOW_VOLTAGE\n"); break;
 108                 default:            xprintf("UNKNOWN STATUS\n"); break;
 109             };
 110         }
 111
 112         /* every minute */
 113         if (sec == 0) {
 114             uint32_t t = timer_read32()/1000;
 115             uint16_t v = battery_voltage();
 116             uint8_t h = t/3600;
 117             uint8_t m = t%3600/60;
 118             uint8_t s = t%60;
 119             xprintf("%02u:%02u:%02u\t%umV\n", h, m, s, v);
 120             /* TODO: xprintf doesn't work for this.
 121             xprintf("%02u:%02u:%02u\t%umV\n", (t/3600), (t%3600/60), (t%60), v);
 122             */
 123         }
 124         sec++; sec = sec%60;
 125     }
 126
 127
 128     /* Connection monitor */
 129     if (rn42_linked()) {
 130         status_led(true);
 131     } else {
 132         status_led(false);
 133     }
 134 }
 135
 136
 137
 138 /******************************************************************************
 139  * Command
 140  ******************************************************************************/
 141 bool command_extra(uint8_t code)
 142 {
 143     uint32_t t;
 144     uint16_t b;
 145     static host_driver_t *prev_driver = &rn42_driver;
 146     switch (code) {
 147         case KC_H:
 148         case KC_SLASH: /* ? */
 149             print("\n\n----- Bluetooth RN-42 Help -----\n");
 150             print("Del: enter/exit config mode(auto_connect/disconnect)\n");
 151             print("i:   RN-42 info\n");
 152             print("b:   battery voltage\n");
 153
 154             if (config_mode) {
 155                 return true;
 156             } else {
 157                 print("u:   Force USB mode\n");
 158                 return false;   // to display default command help
 159             }
 160         case KC_DELETE:
 161             if (rn42_autoconnecting()) {
 162                 prev_driver = host_get_driver();
 163                 clear_keyboard();
 164                 _delay_ms(500);
 165                 host_set_driver(&rn42_config_driver);   // null driver; not to send a key to host
 166                 rn42_disconnect();
 167                 print("\nRN-42: disconnect\n");
 168                 print("Enter config mode\n");
 169                 print("type $$$ to start and + for local echo\n");
 170                 command_state = CONSOLE;
 171                 config_mode = true;
 172             } else {
 173                 rn42_autoconnect();
 174                 print("\nRN-42: auto_connect\n");
 175                 print("Exit config mode\n");
 176                 command_state = ONESHOT;
 177                 config_mode = false;
 178                 //clear_keyboard();
 179                 host_set_driver(prev_driver);
 180             }
 181             return true;
 182         case KC_U:
 183             if (config_mode) return false;
 184             if (force_usb) {
 185                 print("Auto mode\n");
 186                 force_usb = false;
 187             } else {
 188                 print("USB mode\n");
 189                 force_usb = true;
 190                 clear_keyboard();
 191                 host_set_driver(&lufa_driver);
 192             }
 193             return true;
 194         case KC_I:
 195             print("\n----- RN-42 info -----\n");
 196             xprintf("protocol: %s\n", (host_get_driver() == &rn42_driver) ? "RN-42" : "LUFA");
 197             xprintf("force_usb: %X\n", force_usb);
 198             xprintf("rn42_autoconnecting(): %X\n", rn42_autoconnecting());
 199             xprintf("rn42_linked(): %X\n", rn42_linked());
 200             xprintf("rn42_rts(): %X\n", rn42_rts());
 201             xprintf("config_mode: %X\n", config_mode);
 202             xprintf("VBUS: %X\n", USBSTA&(1<<VBUS));
 203             xprintf("battery_charging: %X\n", battery_charging());
 204             xprintf("battery_status: %X\n", battery_status());
 205             return true;
 206         case KC_B:
 207             // battery monitor
 208             t = timer_read32()/1000;
 209             b = battery_voltage();
 210             xprintf("BAT: %umV\t", b);
 211             xprintf("%02u:",   t/3600);
 212             xprintf("%02u:",   t%3600/60);
 213             xprintf("%02u\n",  t%60);
 214             return true;
 215         default:
 216             if (config_mode)
 217                 return true;
 218             else
 219                 return false;   // exec default command
 220     }
 221     return true;
 222 }
 223
 224 static uint8_t code2asc(uint8_t code);
 225 bool command_console_extra(uint8_t code)
 226 {
 227     switch (code) {
 228         default:
 229             rn42_putc(code2asc(code));
 230             return true;
 231     }
 232     return false;
 233 }
 234
 235 // convert keycode into ascii charactor
 236 static uint8_t code2asc(uint8_t code)
 237 {
 238     bool shifted = (get_mods() & (MOD_BIT(KC_LSHIFT)|MOD_BIT(KC_RSHIFT))) ? true : false;
 239     switch (code) {
 240         case KC_A: return (shifted ? 'A' : 'a');
 241         case KC_B: return (shifted ? 'B' : 'b');
 242         case KC_C: return (shifted ? 'C' : 'c');
 243         case KC_D: return (shifted ? 'D' : 'd');
 244         case KC_E: return (shifted ? 'E' : 'e');
 245         case KC_F: return (shifted ? 'F' : 'f');
 246         case KC_G: return (shifted ? 'G' : 'g');
 247         case KC_H: return (shifted ? 'H' : 'h');
 248         case KC_I: return (shifted ? 'I' : 'i');
 249         case KC_J: return (shifted ? 'J' : 'j');
 250         case KC_K: return (shifted ? 'K' : 'k');
 251         case KC_L: return (shifted ? 'L' : 'l');
 252         case KC_M: return (shifted ? 'M' : 'm');
 253         case KC_N: return (shifted ? 'N' : 'n');
 254         case KC_O: return (shifted ? 'O' : 'o');
 255         case KC_P: return (shifted ? 'P' : 'p');
 256         case KC_Q: return (shifted ? 'Q' : 'q');
 257         case KC_R: return (shifted ? 'R' : 'r');
 258         case KC_S: return (shifted ? 'S' : 's');
 259         case KC_T: return (shifted ? 'T' : 't');
 260         case KC_U: return (shifted ? 'U' : 'u');
 261         case KC_V: return (shifted ? 'V' : 'v');
 262         case KC_W: return (shifted ? 'W' : 'w');
 263         case KC_X: return (shifted ? 'X' : 'x');
 264         case KC_Y: return (shifted ? 'Y' : 'y');
 265         case KC_Z: return (shifted ? 'Z' : 'z');
 266         case KC_1: return (shifted ? '!' : '1');
 267         case KC_2: return (shifted ? '@' : '2');
 268         case KC_3: return (shifted ? '#' : '3');
 269         case KC_4: return (shifted ? '$' : '4');
 270         case KC_5: return (shifted ? '%' : '5');
 271         case KC_6: return (shifted ? '^' : '6');
 272         case KC_7: return (shifted ? '&' : '7');
 273         case KC_8: return (shifted ? '*' : '8');
 274         case KC_9: return (shifted ? '(' : '9');
 275         case KC_0: return (shifted ? ')' : '0');
 276         case KC_ENTER: return '\n';
 277         case KC_ESCAPE: return 0x1B;
 278         case KC_BSPACE: return '\b';
 279         case KC_TAB: return '\t';
 280         case KC_SPACE: return ' ';
 281         case KC_MINUS: return (shifted ? '_' : '-');
 282         case KC_EQUAL: return (shifted ? '+' : '=');
 283         case KC_LBRACKET: return (shifted ? '{' : '[');
 284         case KC_RBRACKET: return (shifted ? '}' : ']');
 285         case KC_BSLASH: return (shifted ? '|' : '\\');
 286         case KC_NONUS_HASH: return (shifted ? '|' : '\\');
 287         case KC_SCOLON: return (shifted ? ':' : ';');
 288         case KC_QUOTE: return (shifted ? '"' : '\'');
 289         case KC_GRAVE: return (shifted ? '~' : '`');
 290         case KC_COMMA: return (shifted ? '<' : ',');
 291         case KC_DOT: return (shifted ? '>' : '.');
 292         case KC_SLASH: return (shifted ? '?' : '/');
 293         case KC_DELETE: return '\0';    // Delete to disconnect
 294         default: return ' ';
 295     }
 296 }