Merge pull request #148 from cub-uanic/patch-1
[tmk_keyboard.git] / keyboard / hhkb / rn42 / rn42_task.c
1 #include <stdint.h>
2 #include <string.h>
3 #include <avr/pgmspace.h>
4 #include <avr/eeprom.h>
5 #include "keycode.h"
6 #include "serial.h"
7 #include "host.h"
8 #include "action.h"
9 #include "action_util.h"
10 #include "lufa.h"
11 #include "rn42_task.h"
12 #include "print.h"
13 #include "debug.h"
14 #include "timer.h"
15 #include "wait.h"
16 #include "command.h"
17 #include "battery.h"
18
19 static bool config_mode = false;
20 static bool force_usb = false;
21
22 static void status_led(bool on)
23 {
24 if (on) {
25 DDRE |= (1<<6);
26 PORTE &= ~(1<<6);
27 } else {
28 DDRE |= (1<<6);
29 PORTE |= (1<<6);
30 }
31 }
32
33 void rn42_task_init(void)
34 {
35 battery_init();
36 }
37
38 void rn42_task(void)
39 {
40 int16_t c;
41 // Raw mode: interpret output report of LED state
42 while ((c = rn42_getc()) != -1) {
43 // LED Out report: 0xFE, 0x02, 0x01, <leds>
44 // To get the report over UART set bit3 with SH, command.
45 static enum {LED_INIT, LED_FE, LED_02, LED_01} state = LED_INIT;
46 switch (state) {
47 case LED_INIT:
48 if (c == 0xFE) state = LED_FE;
49 else {
50 if (0x0 <= c && c <= 0x7f) xprintf("%c", c);
51 else xprintf(" %02X", c);
52 }
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 dprintf("LED status: %02X\n", c);
64 rn42_set_leds(c);
65 state = LED_INIT;
66 break;
67 default:
68 state = LED_INIT;
69 }
70 }
71
72 /* Bluetooth mode when ready */
73 if (!config_mode && !force_usb) {
74 if (!rn42_rts() && host_get_driver() != &rn42_driver) {
75 clear_keyboard();
76 host_set_driver(&rn42_driver);
77 } else if (rn42_rts() && host_get_driver() != &lufa_driver) {
78 clear_keyboard();
79 host_set_driver(&lufa_driver);
80 }
81 }
82
83
84 static uint16_t prev_timer = 0;
85 uint16_t e = timer_elapsed(prev_timer);
86 if (e > 1000) {
87 /* every second */
88 prev_timer += e/1000*1000;
89
90 /* Low voltage alert */
91 uint8_t bs = battery_status();
92 if (bs == LOW_VOLTAGE) {
93 battery_led(LED_ON);
94 } else {
95 battery_led(LED_CHARGER);
96 }
97
98 /* every minute */
99 uint32_t t = timer_read32()/1000;
100 if (t%60 == 0) {
101 uint16_t v = battery_voltage();
102 uint8_t h = t/3600;
103 uint8_t m = t%3600/60;
104 uint8_t s = t%60;
105 dprintf("%02u:%02u:%02u\t%umV\n", h, m, s, v);
106 /* TODO: xprintf doesn't work for this.
107 xprintf("%02u:%02u:%02u\t%umV\n", (t/3600), (t%3600/60), (t%60), v);
108 */
109 }
110 }
111
112
113 /* Connection monitor */
114 if (!rn42_rts() && rn42_linked()) {
115 status_led(true);
116 } else {
117 status_led(false);
118 }
119 }
120
121
122
123 /******************************************************************************
124 * Command
125 ******************************************************************************/
126 static host_driver_t *prev_driver = &rn42_driver;
127
128 static void print_rn42(void)
129 {
130 int16_t c;
131 while ((c = rn42_getc()) != -1) {
132 xprintf("%c", c);
133 }
134 }
135
136 static void clear_rn42(void)
137 {
138 while (rn42_getc() != -1) ;
139 }
140
141 #define SEND_STR(str) send_str(PSTR(str))
142 #define SEND_COMMAND(cmd) send_command(PSTR(cmd))
143
144 static void send_str(const char *str)
145 {
146 uint8_t c;
147 while ((c = pgm_read_byte(str++)))
148 rn42_putc(c);
149 }
150
151 static const char *send_command(const char *cmd)
152 {
153 static const char *s;
154 send_str(cmd);
155 wait_ms(500);
156 s = rn42_gets(100);
157 xprintf("%s\r\n", s);
158 print_rn42();
159 return s;
160 }
161
162 static void enter_command_mode(void)
163 {
164 prev_driver = host_get_driver();
165 clear_keyboard();
166 host_set_driver(&rn42_config_driver); // null driver; not to send a key to host
167 rn42_disconnect();
168 while (rn42_linked()) ;
169
170 print("Entering config mode ...\n");
171 wait_ms(1100); // need 1 sec
172 SEND_COMMAND("$$$");
173 wait_ms(600); // need 1 sec
174 print_rn42();
175 const char *s = SEND_COMMAND("v\r\n");
176 if (strncmp("v", s, 1) != 0) SEND_COMMAND("+\r\n"); // local echo on
177 }
178
179 static void exit_command_mode(void)
180 {
181 print("Exiting config mode ...\n");
182 SEND_COMMAND("---\r\n"); // exit
183
184 rn42_autoconnect();
185 clear_keyboard();
186 host_set_driver(prev_driver);
187 }
188
189 static void init_rn42(void)
190 {
191 // RN-42 configure
192 if (!config_mode) enter_command_mode();
193 SEND_COMMAND("SF,1\r\n"); // factory defaults
194 SEND_COMMAND("S-,TmkBT\r\n");
195 SEND_COMMAND("SS,Keyboard/Mouse\r\n");
196 SEND_COMMAND("SM,4\r\n"); // auto connect(DTR)
197 SEND_COMMAND("SW,8000\r\n"); // Sniff disable
198 SEND_COMMAND("S~,6\r\n"); // HID profile
199 SEND_COMMAND("SH,003C\r\n"); // combo device, out-report, 4-reconnect
200 SEND_COMMAND("SY,FFF4\r\n"); // transmit power -12
201 SEND_COMMAND("R,1\r\n");
202 if (!config_mode) exit_command_mode();
203 }
204
205 #if 0
206 // Switching connections
207 // NOTE: Remote Address doesn't work in the way manual says.
208 // EEPROM address for link store
209 #define RN42_LINK0 (uint8_t *)128
210 #define RN42_LINK1 (uint8_t *)140
211 #define RN42_LINK2 (uint8_t *)152
212 #define RN42_LINK3 (uint8_t *)164
213 static void store_link(uint8_t *eeaddr)
214 {
215 enter_command_mode();
216 SEND_STR("GR\r\n"); // remote address
217 const char *s = rn42_gets(500);
218 if (strcmp("GR", s) == 0) s = rn42_gets(500); // ignore local echo
219 xprintf("%s(%d)\r\n", s, strlen(s));
220 if (strlen(s) == 12) {
221 for (int i = 0; i < 12; i++) {
222 eeprom_write_byte(eeaddr+i, *(s+i));
223 dprintf("%c ", *(s+i));
224 }
225 dprint("\r\n");
226 }
227 exit_command_mode();
228 }
229
230 static void restore_link(const uint8_t *eeaddr)
231 {
232 enter_command_mode();
233 SEND_COMMAND("SR,Z\r\n"); // remove remote address
234 SEND_STR("SR,"); // set remote address from EEPROM
235 for (int i = 0; i < 12; i++) {
236 uint8_t c = eeprom_read_byte(eeaddr+i);
237 rn42_putc(c);
238 dprintf("%c ", c);
239 }
240 dprintf("\r\n");
241 SEND_COMMAND("\r\n");
242 SEND_COMMAND("R,1\r\n"); // reboot
243 exit_command_mode();
244 }
245
246 static const char *get_link(uint8_t * eeaddr)
247 {
248 static char s[13];
249 for (int i = 0; i < 12; i++) {
250 uint8_t c = eeprom_read_byte(eeaddr+i);
251 s[i] = c;
252 }
253 s[12] = '\0';
254 return s;
255 }
256 #endif
257
258 static void pairing(void)
259 {
260 enter_command_mode();
261 SEND_COMMAND("SR,Z\r\n"); // remove remote address
262 SEND_COMMAND("R,1\r\n"); // reboot
263 exit_command_mode();
264 }
265
266 bool command_extra(uint8_t code)
267 {
268 uint32_t t;
269 uint16_t b;
270 switch (code) {
271 case KC_H:
272 case KC_SLASH: /* ? */
273 print("\n\n----- Bluetooth RN-42 Help -----\n");
274 print("i: RN-42 info\n");
275 print("b: battery voltage\n");
276 print("Del: enter/exit RN-42 config mode\n");
277 print("Slck: RN-42 initialize\n");
278 #if 0
279 print("1-4: restore link\n");
280 print("F1-F4: store link\n");
281 #endif
282 print("p: pairing\n");
283
284 if (config_mode) {
285 return true;
286 } else {
287 print("u: toggle Force USB mode\n");
288 return false; // to display default command help
289 }
290 case KC_P:
291 pairing();
292 return true;
293 #if 0
294 /* Store link address to EEPROM */
295 case KC_F1:
296 store_link(RN42_LINK0);
297 return true;
298 case KC_F2:
299 store_link(RN42_LINK1);
300 return true;
301 case KC_F3:
302 store_link(RN42_LINK2);
303 return true;
304 case KC_F4:
305 store_link(RN42_LINK3);
306 return true;
307 /* Restore link address to EEPROM */
308 case KC_1:
309 restore_link(RN42_LINK0);
310 return true;
311 case KC_2:
312 restore_link(RN42_LINK1);
313 return true;
314 case KC_3:
315 restore_link(RN42_LINK2);
316 return true;
317 case KC_4:
318 restore_link(RN42_LINK3);
319 return true;
320 #endif
321 case KC_I:
322 print("\n----- RN-42 info -----\n");
323 xprintf("protocol: %s\n", (host_get_driver() == &rn42_driver) ? "RN-42" : "LUFA");
324 xprintf("force_usb: %X\n", force_usb);
325 xprintf("rn42: %s\n", rn42_rts() ? "OFF" : (rn42_linked() ? "CONN" : "ON"));
326 xprintf("rn42_autoconnecting(): %X\n", rn42_autoconnecting());
327 xprintf("config_mode: %X\n", config_mode);
328 xprintf("USB State: %s\n",
329 (USB_DeviceState == DEVICE_STATE_Unattached) ? "Unattached" :
330 (USB_DeviceState == DEVICE_STATE_Powered) ? "Powered" :
331 (USB_DeviceState == DEVICE_STATE_Default) ? "Default" :
332 (USB_DeviceState == DEVICE_STATE_Addressed) ? "Addressed" :
333 (USB_DeviceState == DEVICE_STATE_Configured) ? "Configured" :
334 (USB_DeviceState == DEVICE_STATE_Suspended) ? "Suspended" : "?");
335 xprintf("battery: ");
336 switch (battery_status()) {
337 case FULL_CHARGED: xprintf("FULL"); break;
338 case CHARGING: xprintf("CHARG"); break;
339 case DISCHARGING: xprintf("DISCHG"); break;
340 case LOW_VOLTAGE: xprintf("LOW"); break;
341 default: xprintf("?"); break;
342 };
343 xprintf("\n");
344 xprintf("RemoteWakeupEnabled: %X\n", USB_Device_RemoteWakeupEnabled);
345 xprintf("VBUS: %X\n", USBSTA&(1<<VBUS));
346 t = timer_read32()/1000;
347 uint8_t d = t/3600/24;
348 uint8_t h = t/3600;
349 uint8_t m = t%3600/60;
350 uint8_t s = t%60;
351 xprintf("uptime: %02u %02u:%02u:%02u\n", d, h, m, s);
352 #if 0
353 xprintf("LINK0: %s\r\n", get_link(RN42_LINK0));
354 xprintf("LINK1: %s\r\n", get_link(RN42_LINK1));
355 xprintf("LINK2: %s\r\n", get_link(RN42_LINK2));
356 xprintf("LINK3: %s\r\n", get_link(RN42_LINK3));
357 #endif
358 return true;
359 case KC_B:
360 // battery monitor
361 t = timer_read32()/1000;
362 b = battery_voltage();
363 xprintf("BAT: %umV\t", b);
364 xprintf("%02u:", t/3600);
365 xprintf("%02u:", t%3600/60);
366 xprintf("%02u\n", t%60);
367 return true;
368 case KC_U:
369 if (config_mode) return false;
370 if (force_usb) {
371 print("Auto mode\n");
372 force_usb = false;
373 } else {
374 print("USB mode\n");
375 force_usb = true;
376 clear_keyboard();
377 host_set_driver(&lufa_driver);
378 }
379 return true;
380 case KC_DELETE:
381 /* RN-42 Command mode */
382 if (rn42_autoconnecting()) {
383 enter_command_mode();
384
385 command_state = CONSOLE;
386 config_mode = true;
387 } else {
388 exit_command_mode();
389
390 command_state = ONESHOT;
391 config_mode = false;
392 }
393 return true;
394 case KC_SCROLLLOCK:
395 init_rn42();
396 return true;
397 default:
398 if (config_mode)
399 return true;
400 else
401 return false; // yield to default command
402 }
403 return true;
404 }
405
406 /*
407 * RN-42 Command mode
408 * sends charactors to the module
409 */
410 static uint8_t code2asc(uint8_t code);
411 bool command_console_extra(uint8_t code)
412 {
413 rn42_putc(code2asc(code));
414 return true;
415 }
416
417 // convert keycode into ascii charactor
418 static uint8_t code2asc(uint8_t code)
419 {
420 bool shifted = (get_mods() & (MOD_BIT(KC_LSHIFT)|MOD_BIT(KC_RSHIFT))) ? true : false;
421 switch (code) {
422 case KC_A: return (shifted ? 'A' : 'a');
423 case KC_B: return (shifted ? 'B' : 'b');
424 case KC_C: return (shifted ? 'C' : 'c');
425 case KC_D: return (shifted ? 'D' : 'd');
426 case KC_E: return (shifted ? 'E' : 'e');
427 case KC_F: return (shifted ? 'F' : 'f');
428 case KC_G: return (shifted ? 'G' : 'g');
429 case KC_H: return (shifted ? 'H' : 'h');
430 case KC_I: return (shifted ? 'I' : 'i');
431 case KC_J: return (shifted ? 'J' : 'j');
432 case KC_K: return (shifted ? 'K' : 'k');
433 case KC_L: return (shifted ? 'L' : 'l');
434 case KC_M: return (shifted ? 'M' : 'm');
435 case KC_N: return (shifted ? 'N' : 'n');
436 case KC_O: return (shifted ? 'O' : 'o');
437 case KC_P: return (shifted ? 'P' : 'p');
438 case KC_Q: return (shifted ? 'Q' : 'q');
439 case KC_R: return (shifted ? 'R' : 'r');
440 case KC_S: return (shifted ? 'S' : 's');
441 case KC_T: return (shifted ? 'T' : 't');
442 case KC_U: return (shifted ? 'U' : 'u');
443 case KC_V: return (shifted ? 'V' : 'v');
444 case KC_W: return (shifted ? 'W' : 'w');
445 case KC_X: return (shifted ? 'X' : 'x');
446 case KC_Y: return (shifted ? 'Y' : 'y');
447 case KC_Z: return (shifted ? 'Z' : 'z');
448 case KC_1: return (shifted ? '!' : '1');
449 case KC_2: return (shifted ? '@' : '2');
450 case KC_3: return (shifted ? '#' : '3');
451 case KC_4: return (shifted ? '$' : '4');
452 case KC_5: return (shifted ? '%' : '5');
453 case KC_6: return (shifted ? '^' : '6');
454 case KC_7: return (shifted ? '&' : '7');
455 case KC_8: return (shifted ? '*' : '8');
456 case KC_9: return (shifted ? '(' : '9');
457 case KC_0: return (shifted ? ')' : '0');
458 case KC_ENTER: return '\n';
459 case KC_ESCAPE: return 0x1B;
460 case KC_BSPACE: return '\b';
461 case KC_TAB: return '\t';
462 case KC_SPACE: return ' ';
463 case KC_MINUS: return (shifted ? '_' : '-');
464 case KC_EQUAL: return (shifted ? '+' : '=');
465 case KC_LBRACKET: return (shifted ? '{' : '[');
466 case KC_RBRACKET: return (shifted ? '}' : ']');
467 case KC_BSLASH: return (shifted ? '|' : '\\');
468 case KC_NONUS_HASH: return (shifted ? '|' : '\\');
469 case KC_SCOLON: return (shifted ? ':' : ';');
470 case KC_QUOTE: return (shifted ? '"' : '\'');
471 case KC_GRAVE: return (shifted ? '~' : '`');
472 case KC_COMMA: return (shifted ? '<' : ',');
473 case KC_DOT: return (shifted ? '>' : '.');
474 case KC_SLASH: return (shifted ? '?' : '/');
475 case KC_DELETE: return '\0'; // Delete to disconnect
476 default: return ' ';
477 }
478 }
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