| 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Trennfix firmware - main.c |
| 4 | * |
| 5 | * Copyright (C) 2017 Philipp Hachtmann |
| 6 | * |
| 7 | * This program is free software: you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation, either version 3 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 19 | * |
| 20 | *****************************************************************************/ |
| 21 | |
| 22 | #include <stdio.h> |
| 23 | #include <stdlib.h> |
| 24 | #include <string.h> |
| 25 | |
| 26 | #include <avr/io.h> |
| 27 | #include <avr/eeprom.h> |
| 28 | #include <avr/interrupt.h> |
| 29 | #include <avr/pgmspace.h> |
| 30 | |
| 31 | #include <util/delay.h> |
| 32 | #include <stdint.h> |
| 33 | #include <mm/mm_switch.h> |
| 34 | #include <config/hardware.h> |
| 35 | |
| 36 | #define EE_MAGIC 0xab |
| 37 | |
| 38 | enum op_mode { |
| 39 | OM_MOMENTARY, /* on as long as "key on" pressed */ |
| 40 | OM_DOUBLE, /* On off with "on" and "off" keys */ |
| 41 | OM_TOGGLE, /* toggle on "key on" pressed */ |
| 42 | OM_ERASED = 0xff /* EEPROM erased, need setup */ |
| 43 | }; |
| 44 | |
| 45 | enum learn_mode { |
| 46 | LM_OFF = 0, |
| 47 | LM_LEARN_ON_KEY, /* Learn primary key */ |
| 48 | LM_LEARN_OFF_KEY, /* Learn secondary key, relevant for OM_DOUBLE */ |
| 49 | LM_LEARN_INITIAL, /* Learn initial pulse length, 10ms steps */ |
| 50 | LM_LEARN_DUTY, /* Learn duty cycle 0-10 */ |
| 51 | LM_LEARN_OP_MODE, /* Learn operation mode */ |
| 52 | LM_END, /* Only a label */ |
| 53 | }; |
| 54 | |
| 55 | struct config { |
| 56 | uint8_t magic; /* Magic value */ |
| 57 | enum op_mode op_mode; |
| 58 | uint8_t decoder_on; |
| 59 | uint8_t key_on; |
| 60 | uint8_t decoder_off; |
| 61 | uint8_t key_off; |
| 62 | uint8_t initial_pulse; /* Lenghth of initial pulse in 10ms steps */ |
| 63 | uint8_t on_duty_cycle; /* Duty cycle for on. 0-10 */ |
| 64 | volatile enum learn_mode learn_mode; |
| 65 | }; |
| 66 | |
| 67 | static struct EEMEM config ee_config; |
| 68 | static volatile struct config config; |
| 69 | static volatile uint8_t drive_on = 0; |
| 70 | |
| 71 | static void load_config(void) |
| 72 | { |
| 73 | eeprom_read_block((uint8_t *)&config, &ee_config, sizeof(config)); |
| 74 | } |
| 75 | |
| 76 | static void save_config(void) |
| 77 | { |
| 78 | #ifdef USE_EEPROM_UPDATE |
| 79 | eeprom_update_block((uint8_t *)&config, &ee_config, sizeof(config)); |
| 80 | #else |
| 81 | eeprom_write_block((uint8_t *)&config, &ee_config, sizeof(config)); |
| 82 | #endif |
| 83 | } |
| 84 | |
| 85 | |
| 86 | |
| 87 | ISR(PCINT0_vect){ |
| 88 | static uint8_t btn_last = 0; |
| 89 | |
| 90 | mm_pinchange_handler(); |
| 91 | |
| 92 | if (BTN_PRESSED && !btn_last) { |
| 93 | config.learn_mode++; |
| 94 | config.learn_mode %= LM_END; |
| 95 | } |
| 96 | btn_last = BTN_PRESSED; |
| 97 | } |
| 98 | |
| 99 | static uint8_t get_speed(uint8_t command) |
| 100 | { |
| 101 | uint8_t b1, b3, b5, b7; |
| 102 | |
| 103 | b1 = ((command & 0x80) != 0); |
| 104 | // b2 = ((command & 0x40) != 0); |
| 105 | b3 = ((command & 0x20) != 0); |
| 106 | // b4 = ((command & 0x10) != 0); |
| 107 | b5 = ((command & 0x8) != 0); |
| 108 | // b6 = ((command & 0x4) != 0); |
| 109 | b7 = ((command & 0x2) != 0); |
| 110 | // b8 = ((command & 0x1) != 0); |
| 111 | |
| 112 | //if ((b1 != b2) || (b2 != b3) || (b3 != b4) || (b5 != b6) || (b7 != b8)) |
| 113 | // return 0xff; |
| 114 | |
| 115 | return (b1 + b3*2 + b5*4 +b7*8); |
| 116 | } |
| 117 | |
| 118 | #ifdef INTERPRET_DRIVE_COMMANDS |
| 119 | |
| 120 | void mm_switch_drive(uint8_t decoder, uint8_t function, uint8_t command) |
| 121 | { |
| 122 | static uint8_t seen_before = 0; |
| 123 | uint8_t speed; |
| 124 | |
| 125 | if (!seen_before) { |
| 126 | if ((decoder == 80) && (function == 0) && (command == 0xc0)) { |
| 127 | config.learn_mode = 1; |
| 128 | save_config(); |
| 129 | } |
| 130 | } |
| 131 | seen_before = 1; |
| 132 | |
| 133 | speed = get_speed(command); |
| 134 | static uint8_t itsme = 0; |
| 135 | |
| 136 | if (config.learn_mode) { |
| 137 | if (decoder == 70) { |
| 138 | if (speed == 1) { |
| 139 | itsme = 1; |
| 140 | drive_on = 1; |
| 141 | }else { |
| 142 | if (itsme) { |
| 143 | drive_on = 0; |
| 144 | itsme = 0; |
| 145 | } |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | if (decoder == 33) { |
| 150 | if (speed != 0xff) { |
| 151 | if (speed >= 1) speed -= 1; |
| 152 | if (speed <= 14) |
| 153 | config.on_duty_cycle = speed; |
| 154 | else |
| 155 | config.on_duty_cycle = 14; |
| 156 | |
| 157 | } |
| 158 | } |
| 159 | |
| 160 | if (decoder == 32) { |
| 161 | if (speed != 0xff) { |
| 162 | config.initial_pulse = speed; |
| 163 | } |
| 164 | } |
| 165 | |
| 166 | if (decoder == 31 && command == 0xc0) |
| 167 | save_config(); |
| 168 | } |
| 169 | } |
| 170 | |
| 171 | #else |
| 172 | #ifdef INTERPRET_DRIVE_SIMPLE |
| 173 | |
| 174 | static volatile uint8_t current_loco; |
| 175 | |
| 176 | void mm_switch_drive(uint8_t decoder, uint8_t function, uint8_t command) |
| 177 | { |
| 178 | uint8_t speed; |
| 179 | speed = get_speed(command); |
| 180 | current_loco = decoder; |
| 181 | if (speed != 0xff) { |
| 182 | if (decoder == 50) { |
| 183 | setpin(PIN_LED, drive_on = function & 3); |
| 184 | config.initial_pulse = speed; |
| 185 | } else if (decoder == 51) { |
| 186 | if (speed >= 1) speed -= 1; |
| 187 | if (speed <= 14) |
| 188 | config.on_duty_cycle = speed; |
| 189 | else |
| 190 | config.on_duty_cycle = 14; |
| 191 | } else if (decoder == 52) { |
| 192 | static uint8_t last_speed; |
| 193 | if (speed == 1 && last_speed != 1) |
| 194 | save_config(); |
| 195 | last_speed = speed; |
| 196 | |
| 197 | } |
| 198 | } |
| 199 | } |
| 200 | |
| 201 | #endif |
| 202 | #endif |
| 203 | static volatile uint8_t switch_on = 0; |
| 204 | |
| 205 | void mm_switch_command(uint8_t decoder, uint8_t command) |
| 206 | { |
| 207 | static uint8_t toggle_lock = 0; |
| 208 | switch(config.learn_mode) { |
| 209 | |
| 210 | case LM_OFF: |
| 211 | default: |
| 212 | if ((decoder == config.decoder_on) && |
| 213 | (command == config.key_on)) { /* Primary key pressed */ |
| 214 | switch(config.op_mode) { |
| 215 | case OM_MOMENTARY: |
| 216 | case OM_DOUBLE: |
| 217 | if (!switch_on && current_loco == 52) |
| 218 | save_config(); |
| 219 | switch_on = 1; |
| 220 | break; |
| 221 | case OM_TOGGLE: |
| 222 | if (!toggle_lock) { |
| 223 | drive_on = !drive_on; |
| 224 | toggle_lock = 1; |
| 225 | } |
| 226 | break; |
| 227 | default: |
| 228 | break; |
| 229 | } |
| 230 | } |
| 231 | |
| 232 | if ((decoder == config.decoder_on) && |
| 233 | (command == 0)) { /* Primary key released */ |
| 234 | switch(config.op_mode) { |
| 235 | case OM_MOMENTARY: |
| 236 | switch_on = 0; |
| 237 | break; |
| 238 | case OM_TOGGLE: |
| 239 | toggle_lock = 0; |
| 240 | break; |
| 241 | default: |
| 242 | break; |
| 243 | } |
| 244 | } |
| 245 | #ifdef HANDLE_OFF_KEY |
| 246 | |
| 247 | if ((decoder == config.decoder_off) && |
| 248 | (command == config.key_off)) { /* Secondary "off" key pressed */ |
| 249 | switch(config.op_mode) { |
| 250 | case OM_DOUBLE: |
| 251 | drive_on = 0; |
| 252 | break; |
| 253 | case OM_TOGGLE: |
| 254 | case OM_MOMENTARY: |
| 255 | default: |
| 256 | break; |
| 257 | } |
| 258 | } |
| 259 | #endif |
| 260 | break; |
| 261 | |
| 262 | case LM_LEARN_ON_KEY: |
| 263 | if (command) { |
| 264 | config.decoder_on = decoder; |
| 265 | config.key_on = command; |
| 266 | if (config.op_mode == OM_DOUBLE) |
| 267 | config.learn_mode = LM_LEARN_OFF_KEY; |
| 268 | else |
| 269 | config.learn_mode = LM_OFF; |
| 270 | save_config(); |
| 271 | } |
| 272 | break; |
| 273 | #ifdef LEARN_ADVANCED |
| 274 | case LM_LEARN_OFF_KEY: |
| 275 | if (command) { |
| 276 | config.decoder_off = decoder; |
| 277 | config.key_off = command; |
| 278 | config.learn_mode = LM_OFF; |
| 279 | save_config(); |
| 280 | } |
| 281 | break; |
| 282 | |
| 283 | case LM_LEARN_INITIAL: |
| 284 | if (drive_on) { |
| 285 | if (command == 0) |
| 286 | drive_on = 0; |
| 287 | |
| 288 | } else { |
| 289 | switch(command) { |
| 290 | case 1: |
| 291 | if (config.initial_pulse >= 10) |
| 292 | config.initial_pulse -= 10; |
| 293 | else |
| 294 | config.initial_pulse = 0; |
| 295 | save_config(); |
| 296 | drive_on = 1; |
| 297 | break; |
| 298 | case 2: |
| 299 | if (config.initial_pulse <= 245) |
| 300 | config.initial_pulse += 10; |
| 301 | else |
| 302 | config.initial_pulse = 255; |
| 303 | save_config(); |
| 304 | drive_on = 1; |
| 305 | break; |
| 306 | default: |
| 307 | break; |
| 308 | } |
| 309 | } |
| 310 | break; |
| 311 | |
| 312 | case LM_LEARN_DUTY: |
| 313 | if (drive_on) { |
| 314 | if (command == 0) |
| 315 | drive_on = 0; |
| 316 | } else { |
| 317 | switch(command) { |
| 318 | case 1: |
| 319 | if (config.on_duty_cycle > 0) |
| 320 | config.on_duty_cycle -= 1; |
| 321 | save_config(); |
| 322 | drive_on = 1; |
| 323 | break; |
| 324 | case 2: |
| 325 | if (config.on_duty_cycle < 10) |
| 326 | config.on_duty_cycle += 1; |
| 327 | save_config(); |
| 328 | drive_on = 1; |
| 329 | break; |
| 330 | default: |
| 331 | break; |
| 332 | } |
| 333 | } |
| 334 | break; |
| 335 | |
| 336 | case LM_LEARN_OP_MODE: |
| 337 | switch(command) { |
| 338 | case 1: |
| 339 | config.op_mode = OM_MOMENTARY; |
| 340 | save_config(); |
| 341 | config.learn_mode = LM_OFF; |
| 342 | break; |
| 343 | case 3: |
| 344 | config.op_mode = OM_DOUBLE; |
| 345 | save_config(); |
| 346 | config.learn_mode = LM_OFF; |
| 347 | break; |
| 348 | case 5: |
| 349 | config.op_mode = OM_TOGGLE; |
| 350 | save_config(); |
| 351 | config.learn_mode = LM_OFF; |
| 352 | break; |
| 353 | default: |
| 354 | break; |
| 355 | } |
| 356 | break; |
| 357 | #endif |
| 358 | } |
| 359 | } |
| 360 | |
| 361 | |
| 362 | /****************************************************************************** |
| 363 | * |
| 364 | * main() - The main routine |
| 365 | * |
| 366 | */ |
| 367 | void shift(uint8_t mu); |
| 368 | |
| 369 | int main(void) { |
| 370 | uint8_t learn_mode_off; |
| 371 | uint8_t drive_last = 0; |
| 372 | uint8_t drive_slope = 0; |
| 373 | uint8_t i; |
| 374 | uint8_t output_on; |
| 375 | |
| 376 | mm_init(); |
| 377 | load_config(); |
| 378 | setup_hw(); |
| 379 | |
| 380 | if ((config.op_mode == OM_ERASED) || (config.magic != EE_MAGIC)) { |
| 381 | config.magic = EE_MAGIC; |
| 382 | config.op_mode = OM_MOMENTARY; |
| 383 | config.decoder_on = 1; |
| 384 | config.key_on = 1; |
| 385 | config.decoder_off = 1; |
| 386 | config.key_off = 2; |
| 387 | config.initial_pulse = 10; |
| 388 | config.on_duty_cycle = 5; |
| 389 | config.learn_mode = LM_LEARN_ON_KEY; |
| 390 | } |
| 391 | drive_on = 0; |
| 392 | sei(); |
| 393 | |
| 394 | |
| 395 | //setpin(PIN_LED,1 ); |
| 396 | //_delay_ms(400); |
| 397 | //setpin(PIN_LED,0 ); |
| 398 | while (1) { |
| 399 | |
| 400 | drive_start: |
| 401 | |
| 402 | output_on = drive_on || switch_on; |
| 403 | cli(); |
| 404 | if (!drive_last && output_on) |
| 405 | drive_slope = 1; |
| 406 | else |
| 407 | drive_slope = 0; |
| 408 | drive_last = output_on; |
| 409 | sei(); |
| 410 | |
| 411 | if (output_on) { |
| 412 | if (drive_slope) { |
| 413 | for (i = 0; i < config.initial_pulse; i++) { |
| 414 | setpin(PIN_DRIVE, 1); |
| 415 | _delay_ms(20); |
| 416 | } |
| 417 | } |
| 418 | |
| 419 | for (i = 0; i < config.on_duty_cycle; i++) { |
| 420 | setpin(PIN_DRIVE, output_on); |
| 421 | _delay_us(1); |
| 422 | } |
| 423 | for (i = 0; i < (14 - config.on_duty_cycle); i++) { |
| 424 | setpin(PIN_DRIVE, 0); |
| 425 | _delay_us(1); |
| 426 | } |
| 427 | |
| 428 | } else { |
| 429 | setpin(PIN_DRIVE, 0); |
| 430 | if (!config.learn_mode) |
| 431 | continue; |
| 432 | |
| 433 | learn_mode_off = !config.learn_mode; |
| 434 | |
| 435 | if (output_on || (config.learn_mode && learn_mode_off)) |
| 436 | goto drive_start; |
| 437 | |
| 438 | for (i = 0; i < config.learn_mode; i++) { |
| 439 | setpin(PIN_LED, 1); |
| 440 | _delay_ms(10); |
| 441 | //if (output_on || (config.learn_mode && learn_mode_off)) |
| 442 | // goto drive_start; |
| 443 | setpin(PIN_LED, 0); |
| 444 | _delay_ms(135); |
| 445 | //if (output_on || (config.learn_mode && learn_mode_off)) |
| 446 | // goto drive_start; |
| 447 | |
| 448 | //if (output_on || (config.learn_mode && learn_mode_off)) |
| 449 | // goto drive_start; |
| 450 | } |
| 451 | for (i = 0; i < 15 - config.learn_mode; i++) { |
| 452 | //if (output_on || (config.learn_mode && learn_mode_off)) |
| 453 | // goto drive_start; |
| 454 | setpin(PIN_LED, 0); |
| 455 | _delay_ms(70); |
| 456 | //if (output_on || (config.learn_mode && learn_mode_off)) |
| 457 | // goto drive_start; |
| 458 | // _delay_ms(40); |
| 459 | } |
| 460 | } |
| 461 | } |
| 462 | return 0; |
| 463 | } |
| 464 | |
| 465 | |
| 466 | /****************************************************************************** |
| 467 | * The end :-) |
| 468 | */ |