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     uint16_t e = timer_elapsed(prev_timer);
  87     if (e > 1000) {
  88         /* every second */
  89         prev_timer += e/1000*1000;
  90
  91         /* Low voltage alert */
  92         uint8_t bs = battery_status();
  93         if (bs == LOW_VOLTAGE) {
  94             battery_led(LED_ON);
  95         } else {
  96             battery_led(LED_CHARGER);
  97         }
  98
  99         static uint8_t prev_status = UNKNOWN;
 100         if (bs != prev_status) {
 101             prev_status = bs;
 102             switch (bs) {
 103                 case FULL_CHARGED:  xprintf("FULL_CHARGED\n"); break;
 104                 case CHARGING:      xprintf("CHARGING\n"); break;
 105                 case DISCHARGING:   xprintf("DISCHARGING\n"); break;
 106                 case LOW_VOLTAGE:   xprintf("LOW_VOLTAGE\n"); break;
 107                 default:            xprintf("UNKNOWN STATUS\n"); break;
 108             };
 109         }
 110
 111         /* every minute */
 112         uint32_t t = timer_read32()/1000;
 113         if (t%60 == 0) {
 114             uint16_t v = battery_voltage();
 115             uint8_t h = t/3600;
 116             uint8_t m = t%3600/60;
 117             uint8_t s = t%60;
 118             xprintf("%02u:%02u:%02u\t%umV\n", h, m, s, v);
 119             /* TODO: xprintf doesn't work for this.
 120             xprintf("%02u:%02u:%02u\t%umV\n", (t/3600), (t%3600/60), (t%60), v);
 121             */
 122         }
 123     }
 124
 125
 126     /* Connection monitor */
 127     if (rn42_linked()) {
 128         status_led(true);
 129     } else {
 130         status_led(false);
 131     }
 132 }
 133
 134
 135
 136 /******************************************************************************
 137  * Command
 138  ******************************************************************************/
 139 bool command_extra(uint8_t code)
 140 {
 141     uint32_t t;
 142     uint16_t b;
 143     static host_driver_t *prev_driver = &rn42_driver;
 144     switch (code) {
 145         case KC_H:
 146         case KC_SLASH: /* ? */
 147             print("\n\n----- Bluetooth RN-42 Help -----\n");
 148             print("Del: enter/exit config mode(auto_connect/disconnect)\n");
 149             print("i:   RN-42 info\n");
 150             print("b:   battery voltage\n");
 151
 152             if (config_mode) {
 153                 return true;
 154             } else {
 155                 print("u:   Force USB mode\n");
 156                 return false;   // to display default command help
 157             }
 158         case KC_DELETE:
 159             if (rn42_autoconnecting()) {
 160                 prev_driver = host_get_driver();
 161                 clear_keyboard();
 162                 _delay_ms(500);
 163                 host_set_driver(&rn42_config_driver);   // null driver; not to send a key to host
 164                 rn42_disconnect();
 165                 print("\nRN-42: disconnect\n");
 166                 print("Enter config mode\n");
 167                 print("type $$$ to start and + for local echo\n");
 168                 command_state = CONSOLE;
 169                 config_mode = true;
 170             } else {
 171                 rn42_autoconnect();
 172                 print("\nRN-42: auto_connect\n");
 173                 print("Exit config mode\n");
 174                 command_state = ONESHOT;
 175                 config_mode = false;
 176                 //clear_keyboard();
 177                 host_set_driver(prev_driver);
 178             }
 179             return true;
 180         case KC_U:
 181             if (config_mode) return false;
 182             if (force_usb) {
 183                 print("Auto mode\n");
 184                 force_usb = false;
 185             } else {
 186                 print("USB mode\n");
 187                 force_usb = true;
 188                 clear_keyboard();
 189                 host_set_driver(&lufa_driver);
 190             }
 191             return true;
 192         case KC_I:
 193             print("\n----- RN-42 info -----\n");
 194             xprintf("protocol: %s\n", (host_get_driver() == &rn42_driver) ? "RN-42" : "LUFA");
 195             xprintf("force_usb: %X\n", force_usb);
 196             xprintf("rn42_autoconnecting(): %X\n", rn42_autoconnecting());
 197             xprintf("rn42_linked(): %X\n", rn42_linked());
 198             xprintf("rn42_rts(): %X\n", rn42_rts());
 199             xprintf("config_mode: %X\n", config_mode);
 200             xprintf("VBUS: %X\n", USBSTA&(1<<VBUS));
 201             xprintf("battery_charging: %X\n", battery_charging());
 202             xprintf("battery_status: %X\n", battery_status());
 203             return true;
 204         case KC_B:
 205             // battery monitor
 206             t = timer_read32()/1000;
 207             b = battery_voltage();
 208             xprintf("BAT: %umV\t", b);
 209             xprintf("%02u:",   t/3600);
 210             xprintf("%02u:",   t%3600/60);
 211             xprintf("%02u\n",  t%60);
 212             return true;
 213         default:
 214             if (config_mode)
 215                 return true;
 216             else
 217                 return false;   // exec default command
 218     }
 219     return true;
 220 }
 221
 222 static uint8_t code2asc(uint8_t code);
 223 bool command_console_extra(uint8_t code)
 224 {
 225     switch (code) {
 226         default:
 227             rn42_putc(code2asc(code));
 228             return true;
 229     }
 230     return false;
 231 }
 232
 233 // convert keycode into ascii charactor
 234 static uint8_t code2asc(uint8_t code)
 235 {
 236     bool shifted = (get_mods() & (MOD_BIT(KC_LSHIFT)|MOD_BIT(KC_RSHIFT))) ? true : false;
 237     switch (code) {
 238         case KC_A: return (shifted ? 'A' : 'a');
 239         case KC_B: return (shifted ? 'B' : 'b');
 240         case KC_C: return (shifted ? 'C' : 'c');
 241         case KC_D: return (shifted ? 'D' : 'd');
 242         case KC_E: return (shifted ? 'E' : 'e');
 243         case KC_F: return (shifted ? 'F' : 'f');
 244         case KC_G: return (shifted ? 'G' : 'g');
 245         case KC_H: return (shifted ? 'H' : 'h');
 246         case KC_I: return (shifted ? 'I' : 'i');
 247         case KC_J: return (shifted ? 'J' : 'j');
 248         case KC_K: return (shifted ? 'K' : 'k');
 249         case KC_L: return (shifted ? 'L' : 'l');
 250         case KC_M: return (shifted ? 'M' : 'm');
 251         case KC_N: return (shifted ? 'N' : 'n');
 252         case KC_O: return (shifted ? 'O' : 'o');
 253         case KC_P: return (shifted ? 'P' : 'p');
 254         case KC_Q: return (shifted ? 'Q' : 'q');
 255         case KC_R: return (shifted ? 'R' : 'r');
 256         case KC_S: return (shifted ? 'S' : 's');
 257         case KC_T: return (shifted ? 'T' : 't');
 258         case KC_U: return (shifted ? 'U' : 'u');
 259         case KC_V: return (shifted ? 'V' : 'v');
 260         case KC_W: return (shifted ? 'W' : 'w');
 261         case KC_X: return (shifted ? 'X' : 'x');
 262         case KC_Y: return (shifted ? 'Y' : 'y');
 263         case KC_Z: return (shifted ? 'Z' : 'z');
 264         case KC_1: return (shifted ? '!' : '1');
 265         case KC_2: return (shifted ? '@' : '2');
 266         case KC_3: return (shifted ? '#' : '3');
 267         case KC_4: return (shifted ? '$' : '4');
 268         case KC_5: return (shifted ? '%' : '5');
 269         case KC_6: return (shifted ? '^' : '6');
 270         case KC_7: return (shifted ? '&' : '7');
 271         case KC_8: return (shifted ? '*' : '8');
 272         case KC_9: return (shifted ? '(' : '9');
 273         case KC_0: return (shifted ? ')' : '0');
 274         case KC_ENTER: return '\n';
 275         case KC_ESCAPE: return 0x1B;
 276         case KC_BSPACE: return '\b';
 277         case KC_TAB: return '\t';
 278         case KC_SPACE: return ' ';
 279         case KC_MINUS: return (shifted ? '_' : '-');
 280         case KC_EQUAL: return (shifted ? '+' : '=');
 281         case KC_LBRACKET: return (shifted ? '{' : '[');
 282         case KC_RBRACKET: return (shifted ? '}' : ']');
 283         case KC_BSLASH: return (shifted ? '|' : '\\');
 284         case KC_NONUS_HASH: return (shifted ? '|' : '\\');
 285         case KC_SCOLON: return (shifted ? ':' : ';');
 286         case KC_QUOTE: return (shifted ? '"' : '\'');
 287         case KC_GRAVE: return (shifted ? '~' : '`');
 288         case KC_COMMA: return (shifted ? '<' : ',');
 289         case KC_DOT: return (shifted ? '>' : '.');
 290         case KC_SLASH: return (shifted ? '?' : '/');
 291         case KC_DELETE: return '\0';    // Delete to disconnect
 292         default: return ' ';
 293     }
 294 }