root/platform/m10/sub/110d/boot.c

DEFINITIONS

1. spytask
2. CreateTask_spytask
3. boot
4. CreateTask_my
5. sub_fc06c500_my
6. sub_fc06c691_my
7. sub_fc06ca9a_my
8. sub_fc06ca35_my
9. sub_fc0f94ae_my
10. sub_fc08c4b8_my
11. init_required_fw_features
12. support_fi2_boot
13. sub_fc08c8ee_my
14. init_file_modules_task
15. kbd_p2_f_my
16. sub_fc07eeac_my
17. kbd_p1_f_cont_my
18. sub_fc08c6e8_my
19. task_TricInitTask_my

   2 #include "lolevel.h"
   3 #include "platform.h"
   4 #include "core.h"
   5 #include "dryos31.h"
   6 #include "cache.h"
   8 #define offsetof(TYPE, MEMBER) ((int) &((TYPE *)0)->MEMBER)
  10 const char * const new_sa = &_end;
  12 // Forward declarations
  13 extern volatile int jogdial_stopped;
  14 void JogDial_task_my(void);
  16 extern void task_CaptSeq();
  17 extern void task_InitFileModules();
  18 extern void task_MovieRecord();
  19 extern void task_ExpDrv();
  21 /*----------------------------------------------------------------------
  22     spytask
  23 -----------------------------------------------------------------------*/
  25 void spytask(long ua, long ub, long uc, long ud, long ue, long uf)
  26 {
  27     (void)ua; (void)ub; (void)uc; (void)ud; (void)ue; (void)uf;
core_spytask();
  29 }
  31 /*----------------------------------------------------------------------
  32     CreateTask_spytask
  33 -----------------------------------------------------------------------*/
  34 void CreateTask_spytask()
  35 {
_CreateTask("SpyTask", 0x19, 0x2000, spytask, 0);
  37 }
  39 ///*----------------------------------------------------------------------
  40 // Pointer to stack location where jogdial task records previous and current
  41 // jogdial positions
  42 // short *jog_position;
  44 /*----------------------------------------------------------------------
  45     boot()
  46 
  47     Main entry point for the CHDK code
  48 -----------------------------------------------------------------------*/
  50 /*************************************************************/
  51 void __attribute__((naked,noinline)) boot() {
  52     asm volatile ( // 0xfc02000c
  53 "    movw    r0, #0x4000\n"
  54 "    movt    r0, #0\n"
  55 "    mov     sp, r0\n"
  56 "    bl      sub_fc02007e\n"
  57 "    ldr     r2, =0xc0242010\n"
  58 "    ldr     r1, [r2]\n"
  59 "    orr     r1, r1, #1\n"
  60 "    str     r1, [r2]\n"
  61 "    ldr     r0, =0xfceb18d0\n"             // copy (parts of) the DryOS kernel to RAM
  62 "    ldr     r1, =0x010e1000\n"
  63 "    ldr     r3, =0x01107d60\n"
  64 "loc_fc02002a:\n"
  65 "    cmp     r1, r3\n"
  66 "    itt     lo\n"
  67 "    ldrlo   r2, [r0], #4\n"
  68 "    strlo   r2, [r1], #4\n"
  69 "    blo     loc_fc02002a\n"
  70 "    ldr     r0, =0x010e1000\n"
  71 "    ldr     r1, =0x00026d60\n"
  72 "    bl      sub_fc1267ca\n"                // CPU cache operation
  73 "    ldr     r0, =0xfced8630\n"             // copy the rest of DryOS kernel to TCM
  74 "    ldr     r1, =0xbfe10800\n"
  75 "    ldr     r3, =0xbfe1741d\n"
  76 "loc_fc020046:\n"
  77 "    cmp     r1, r3\n"
  78 "    itt     lo\n"
  79 "    ldrlo   r2, [r0], #4\n"
  80 "    strlo   r2, [r1], #4\n"
  81 "    blo     loc_fc020046\n"
  83 // Install CreateTask patch
  84 // use half words in case source or destination not word aligned
  85         "adr     r0, patch_CreateTask\n"    // src: Patch data
  86         "ldr     r1, =hook_CreateTask\n"    // dest: Address to patch (hook_ has thumb bit off)
  87         "add     r2, r0, #8\n"              // two words
  88 "task_hook_loop:\n"
  89         "ldrh   r3, [r0],#2\n"
  90         "strh   r3, [r1],#2\n"
  91         "cmp    r0,r2\n"
  92         "blo    task_hook_loop\n"
  94 "    ldr     r0, =0xfce6459c\n"             // copy pre-inited data
  95 "    ldr     r1, =0x00008000\n"
  96 "    ldr     r3, =0x00055334\n"
  97 "loc_fc02005a:\n"
  98 "    cmp     r1, r3\n"
  99 "    itt     lo\n"
 100 "    ldrlo   r2, [r0], #4\n"
 101 "    strlo   r2, [r1], #4\n"
 102 "    blo     loc_fc02005a\n"
 103 "    ldr     r3, =0x00055334\n"             // BSS
 104 "    ldr     r1, =0x003d6ffc\n"
 105 "    mov.w   r2, #0\n"
 106 "loc_fc020070:\n"
 107 "    cmp     r3, r1\n"
 108 "    it      lo\n"
 109 "    strlo   r2, [r3], #4\n"
 110 "    blo     loc_fc020070\n"
 111 "    b.w     sub_fc06c500_my\n"             // ->
 113 // CreateTask patch, must be aligned as the original
 114         ".align  2\n"
 115 "patch_CreateTask:\n"
 116         "ldr.w   pc, _createtask_my\n"      // Do jump to absolute address CreateTask_my
 117 "_createtask_my:\n"
 118         ".long   CreateTask_my + 1\n"       // has to be a thumb address
 119         ".align  1\n"
 121 );
 122 }
 124 /*************************************************************/
 125 void __attribute__((naked,noinline)) CreateTask_my() {
 126 asm volatile (
 127 "    push   {r0}\n"
 128 //R3 = Pointer to task function to create
 129 "    ldr     r0, =task_CaptSeq\n"       // DryOS original code function ptr.
 130 "    cmp     r0, r3\n"                  // is the given taskptr equal to our searched function?
 131 "    itt     eq\n"                      // EQ block
 132 "    ldreq   r3, =capt_seq_task\n"      // if so replace with our task function base ptr.
 133 "    orreq   r3, #1\n"                  // make sure it's a thumb address (may not be needed?)
 134 "    beq     exitHook\n"                // below compares not necessary if this check has found something.
 136 "    LDR     R0, =task_ExpDrv\n"
 137 "    CMP     R0, R3\n"
 138 "    itt     eq\n"
 139 "    LDREQ   R3, =exp_drv_task\n"
 140 "    orreq   r3, #1\n"
 141 "    BEQ     exitHook\n"
 143 /*
 144 
 145 "    LDR     R0, =task_DvlpSeqTask\n"
 146 "    CMP     R0, R3\n"
 147 "    itt     eq\n"
 148 "    LDREQ   R3, =developseq_task\n"
 149 "    orreq   r3, #1\n"
 150 "    BEQ     exitHook\n"
 151 
 152 "    LDR     R0, =task_FileWrite\n"
 153 "    CMP     R0, R3\n"
 154 "    itt     eq\n"
 155 "    LDREQ   R3, =filewritetask\n"
 156 "    orreq   r3, #1\n"
 157 "    BEQ     exitHook\n"
 158 */
 160 "    LDR     R0, =task_TricInitTask\n"
 161 "    CMP     R0, R3\n"
 162 "    itt     eq\n"
 163 "    LDREQ   R3, =task_TricInitTask_my\n"
 164 "    orreq   r3, #1\n"
 165 "    BEQ     exitHook\n"
 167 "    LDR     R0, =0xFC255E7B\n" // TskCocoa0
 168 "    CMP     R0, R3\n"
 169 "    itt     eq\n"
 170 "    LDREQ   R3, =task_cocoa0\n"
 171 "    orreq   r3, #1\n"
 172 "    BEQ     exitHook\n"
 174 "    LDR     R0, =task_MovieRecord\n"
 175 "    CMP     R0, R3\n"
 176 "    itt     eq\n"
 177 "    LDREQ   R3, =movie_record_task\n"
 178 "    orreq   r3, #1\n"
 179 "    BEQ     exitHook\n"
 181 "    ldr     r0, =task_InitFileModules\n"
 182 "    cmp     r0, r3\n"
 183 "    itt     eq\n"
 184 "    ldreq   r3, =init_file_modules_task\n"
 185 "    orreq   r3, #1\n"
 186 "exitHook:\n" 
 187 // restore overwritten register(s)
 188 "    pop    {r0}\n"
 189 // Execute overwritten instructions from original code, then jump to firmware
 190 "    stmdb   sp!, {r1, r2, r3, r4, r5, r6, r7, r8, r9, lr}\n"
 191 "    mov     r4, r0\n"
 192 "    ldr     r0, =0x8160\n"
 193 "    ldr.w   pc, =(hook_CreateTask + 8 + 1) \n"  // Continue in firmware, thumb bit set
 194 ".ltorg\n"
 195 );
 196 }
 198 void __attribute__((naked,noinline)) sub_fc06c500_my() {
 199     asm volatile (
 200 "    push    {r4, lr}\n"
 201 #if defined(CHDK_NOT_IN_CANON_HEAP)
 202     "ldr     r4, =0x003d6ffc\n"     // heap start, modify here
 203 #else
 204     "ldr     r4, =new_sa\n"         // +
 205     "ldr     r4, [r4]\n"            // +
 206 #endif
 207 "    sub     sp, #0x78\n"
 208 "    ldr     r0, =0x0074e000\n"
 209 "    ldr     r1, =0x000b1fec\n"
 210 "    subs    r0, r0, r4\n"
 211 "    cmp     r0, r1\n"
 212 "    bhs     loc_fc06c512\n"
 213 "loc_fc06c510:\n"
 214 "    b       loc_fc06c510\n"
 215 "loc_fc06c512:\n"
 216 "    ldr     r1, =0x00008074\n"
 217 "    mov.w   r0, #0x80000\n"
 218 "    str     r0, [r1]\n"
 219 "    ldr     r1, =0x00008078\n"
 220 "    ldr     r0, =0x421bcb00\n"
 221 "    str     r0, [r1]\n"
 222 "    ldr     r1, =0x0000807c\n"
 223 "    ldr     r0, =0x421beb00\n"
 224 "    str     r0, [r1]\n"
 225 "    movs    r1, #0x78\n"
 226 "    mov     r0, sp\n"
 227 "    blx     sub_fc314dfc\n"
 228 "    ldr     r0, =0x0068e000\n"
 229 "    mov.w   r1, #0xc0000\n"
 230 "    stm.w   sp, {r0, r1, r4}\n"
 231 "    ldr     r1, =0x00680014\n"
 232 "    subs    r2, r1, r4\n"
 233 "    strd    r2, r1, [sp, #0xc]\n"
 234 "    str     r0, [sp, #0x14]\n"
 235 "    movs    r0, #0x22\n"
 236 "    str     r0, [sp, #0x18]\n"
 237 "    movs    r0, #0xca\n"
 238 "    str     r0, [sp, #0x1c]\n"
 239 "    movw    r0, #0x2b0\n"
 240 "    str     r0, [sp, #0x20]\n"
 241 "    movs    r0, #0xfa\n"
 242 "    str     r0, [sp, #0x24]\n"
 243 "    movw    r0, #0x11a\n"
 244 "    str     r0, [sp, #0x28]\n"
 245 "    movs    r0, #0x85\n"
 246 "    str     r0, [sp, #0x2c]\n"
 247 "    movs    r0, #0x40\n"
 248 "    str     r0, [sp, #0x30]\n"
 249 "    movs    r0, #4\n"
 250 "    str     r0, [sp, #0x34]\n"
 251 "    movs    r0, #0\n"
 252 "    str     r0, [sp, #0x38]\n"
 253 "    movs    r0, #0x10\n"
 254 "    str     r0, [sp, #0x5c]\n"
 255 "    movs    r2, #0\n"
 256 "    lsls    r0, r0, #8\n"
 257 "    str     r0, [sp, #0x60]\n"
 258 "    ldr     r1, =sub_fc06c691_my\n" // ->
 259 "    asrs    r0, r0, #4\n"
 260 "    str     r0, [sp, #0x64]\n"
 261 "    lsls    r0, r0, #5\n"
 262 "    str     r0, [sp, #0x68]\n"
 263 "    mov     r0, sp\n"
 264 "    blx     sub_fc314560\n"
 265 "    add     sp, #0x78\n"
 266 "    pop     {r4, pc}\n"
 267 "    .ltorg\n"
 268     );
 269 }
 271 void __attribute__((naked,noinline)) sub_fc06c691_my() {
 272     asm volatile (
 273 "    push    {r4, lr}\n"
 274 "    ldr     r4, =0xfc06c738\n"     //  *"/_term"
 275 "    bl      sub_fc06d938\n"
 276 "    ldr     r0, =0x000080ec\n"
 277 "    ldr     r1, [r0]\n"
 278 "    ldr     r0, =0x00008074\n"
 279 "    ldr     r0, [r0]\n"
 280 "    adds    r0, #0x10\n"
 281 "    cmp     r1, r0\n"
 282 "    bhs     loc_fc06c6ac\n"
 283 "    ldr     r0, =0xfc06c748\n"     //  *"USER_MEM size checking"
 284 "    bl      sub_fc06c722\n"
 285 "loc_fc06c6ac:\n"
 286 "    bl      sub_fc1268a4\n"
 287 "    ldr     r1, =0xbfe10000\n"
 288 "    mov.w   r2, #0xeeeeeeee\n"
 289 "    ldr     r3, =0xbfe10800\n"
 290 "loc_fc06c6b8:\n"
 291 "    stm     r1!, {r2}\n"
 292 "    cmp     r1, r3\n"
 293 "    blo     loc_fc06c6b8\n"
 294 "    bl      sub_fc1268b6\n"
 295 "    bl      sub_fc1eb838\n"
 296 "    cmp     r0, #0\n"
 297 "    bge     loc_fc06c6d0\n"
 298 "    ldr     r0, =0xfc06c768\n"     //  *"dmSetup"
 299 "    bl      sub_fc06c722\n"
 300 "loc_fc06c6d0:\n"
 301 "    bl      sub_fc06cedc\n"
 302 "    cmp     r0, #0\n"
 303 "    bge     loc_fc06c6de\n"
 304 "    ldr     r0, =0xfc06c770\n"     //  *"termDriverInit"
 305 "    bl      sub_fc06c722\n"
 306 "loc_fc06c6de:\n"
 307 "    mov     r0, r4\n"
 308 "    bl      sub_fc06cf6a\n"
 309 "    cmp     r0, #0\n"
 310 "    bge     loc_fc06c6ee\n"
 311 "    ldr     r0, =0xfc06c780\n"     //  *"termDeviceCreate"
 312 "    bl      sub_fc06c722\n"
 313 "loc_fc06c6ee:\n"
 314 "    mov     r0, r4\n"
 315 "    bl      sub_fc06c8cc\n"
 316 "    cmp     r0, #0\n"
 317 "    bge     loc_fc06c6fe\n"
 318 "    ldr     r0, =0xfc06c794\n"     //  *"stdioSetup"
 319 "    bl      sub_fc06c722\n"
 320 "loc_fc06c6fe:\n"
 321 "    bl      sub_fc06ca10\n"
 322 "    cmp     r0, #0\n"
 323 "    bge     loc_fc06c70c\n"
 324 "    ldr     r0, =0xfc06c7a0\n"     //  *"stdlibSetup"
 325 "    bl      sub_fc06c722\n"
 326 "loc_fc06c70c:\n"
 327 "    bl      sub_fc1268f8\n"
 328 "    cmp     r0, #0\n"
 329 "    bge     loc_fc06c71a\n"
 330 "    ldr     r0, =0xfc06c7ac\n"     //  *"extlib_setup"
 331 "    bl      sub_fc06c722\n"
 332 "loc_fc06c71a:\n"
 333 "    pop.w   {r4, lr}\n"
 334 "    b.w     sub_fc06ca9a_my\n"     // -> continue (taskcreate_startup)
 335 "    .ltorg\n"
 336     );
 337 }
 339 void __attribute__((naked,noinline)) sub_fc06ca9a_my() {
 340     asm volatile (
 341 "    push    {r3, lr}\n"
 342 "    bl      sub_fc06cba0\n"        // pxSetup, dhcpc_setup
 343 "    bl      sub_fc07ea92\n"        // IsNormalCameraMode_FW
 344 "    bl      sub_fc08c9c8\n"        // returns 1
 345 "    cbnz    r0, loc_fc06cab0\n"
 346 "    bl      sub_fc06cb8e\n"        // sets GPIO 0x67
 347 "loc_fc06caae:\n"
 348 "    b       loc_fc06caae\n"        // inf. loop
 349 "loc_fc06cab0:\n"
 350 "    blx     sub_fc3145b8\n"        // task related (?)
 351 "    ldr     r1, =0x0074e000\n"
 352 "    movs    r0, #0\n"
 353 "    bl      sub_fc38ccf0\n"        // returns 0
 354 "    movs    r3, #0\n"
 355 "    str     r3, [sp]\n"
 356 "    ldr     r3, =sub_fc06ca35_my\n" //  task_Startup
 357 "    movs    r2, #0\n"
 358 "    movs    r1, #0x19\n"
 359 "    ldr     r0, =0xfc06cad8\n"     //  *"Startup"
 360 "    blx     sub_fc314af4\n"        // j_CreateTask
 361 "    movs    r0, #0\n"
 362 "    pop     {r3, pc}\n"
 363     ".ltorg\n"
 364     );
 365 }
 367 // task_Startup
 368 void __attribute__((naked,noinline)) sub_fc06ca35_my() {
 369     asm volatile (
 370 "    push    {r4, lr}\n"
 371 "    bl      sub_fc127668\n"        // ... starts clocksave task
 372 "    bl      sub_fc06cb6c\n"        // GPIO, other hw init
 373 "    bl      sub_fc06cccc\n"        // nothing
 374 "    bl      sub_fc0f947c\n"        // HWIC/OC, ... , ADC
 375 //"    bl      sub_fc06cd28\n"      // - startdiskboot
 377 "    bl      sub_10e173c\n"         // + switch off card, trial
 379 "    bl      sub_fc37252a\n"        // creates a semaphore
 380 "    bl      sub_fc0f95d4\n"        // cam error related setup
 381 "    bl      sub_fc06ce1c\n"        // writes 0xd601xxxx
 382 "    bl      sub_fc06cc5c\n"        // InitExDrivers
 383 "    bl      sub_fc0f94ae_my\n"     // -> long func, StartWDT, StartSwitchCheck, many others
 384 "    bl      sub_fc1ebfec\n"        // errLogTask, etc...
 385 "    bl      sub_fc0f95da\n"        // UIMemory (600000 bytes), StartEventExchanger, CtrlMan, Autoshut
 386 //"    bl      sub_fc08c8ee\n"      // -
 387 "    bl      sub_fc08c8ee_my\n"     // -> taskcreate_physw
 388 "    bl      CreateTask_spytask\n"  // +
 389 "    bl      init_required_fw_features\n" // +
 390 "    bl      sub_fc2a516e\n"        // SsTask, CaptSeqTask, ...
 391 "    bl      sub_fc0f95f0\n"        // creates a recursive lock
 392 "    bl      sub_fc0d1748\n"        // cobj, ...
 393 "    bl      sub_fc127236\n"        // battery
 394 "    bl      sub_fc127816\n"        // task_Bye
 395 "    bl      sub_fc1275b6\n"        // creates a semaphore (loadtest maybe)
 396 "    bl      sub_fc1271f2\n"        // BatteryTask
 397 "    bl      sub_fc06ce20\n"        // nothing
 398 "    bl      sub_fc3637f4\n"        // PTM_Init, USB CB, create normal or factory mode controller
 399 "    bl      sub_fc1271c6\n"        // ... 11xx levents
 400 "    bl      sut_done \n"           // + CHDK: startuptask (almost) finished - port specific function
 401 "    pop.w   {r4, lr}\n"
 402 "    b.w     sub_fc12763e\n"        // MLHClock
 403     ".ltorg\n"
 404     );
 405 }
 407 void __attribute__((naked,noinline)) sub_fc0f94ae_my() {
 408     asm volatile (
 409 // capdis -f=chdk -s=0xFC0F94AF -c=26 -stubs PRIMARY.BIN 0xfc000000
 410 "    push    {r4, lr}\n"
 411 "    bl      sub_fc1fb2d0\n"
 412 "    movs    r1, #4\n"
 413 "    movs    r0, #2\n"
 414 "    bl      sub_fc1fabf4\n"
 415 "    bl      sub_fc1fac54\n" // StartWDT_FW
 416 "    bl      sub_fc33e3be\n"
 417 "    bl      sub_fc1fa1b0\n"
 418 "    bl      sub_fc138d8e\n"
 419 "    bl      sub_fc130b44\n"
 420 "    bl      sub_fc131f6c\n"
 421 "    bl      sub_fc08d11c\n" // StartSwitchCheck_FW
 422 "    bl      sub_fc1f36fc\n"
 423 "    bl      sub_fc1f2b7c\n"
 424 "    bl      sub_fc1fae2c\n"
 425 "    ldr     r2, =0x12cea600\n"
 426 "    ldr     r1, =0x7fe8177f\n"
 427 "    blx     sub_fc3145c0\n"
 428 "    bl      sub_fc1f349a\n"
 429 "    bl      sub_fc07eac8\n"
 430 "    bl      sub_fc136fe2\n"
 431 "    bl      sub_fc130a14\n"
 432 "    bl      sub_fc07ea92\n" // IsNormalCameraMode_FW
 433 "    cbz     r0, loc_fc0f9506\n"
 434 "    bl      sub_fc1309bc\n"
 435 "loc_fc0f9506:\n"
 436 "    bl      sub_fc08c4b8_my\n" // ->
 437 "    ldr     pc, =0xFC0F950B\n" // -> continue in fw
 438     );
 439 }
 441 void __attribute__((naked,noinline)) sub_fc08c4b8_my() {
 442     asm volatile (
 443 // capdis -f=chdk -s=0xFC08C4B9 -c=10 -stubs PRIMARY.BIN 0xfc000000
 444 "    push    {r4, r5, r6, r7, lr}\n"
 445 "    ldr     r6, =0x000082cc\n" //  physw_run
 446 "    sub     sp, #0x84\n"
 447 "    ldr     r0, [r6]\n"
 448 "    cmp     r0, #1\n"
 449 "    beq     sub_fc08c55e\n"    // loc -> sub
 450 "    ldr     r0, =0x00056c10\n"
 451 "    bl      sub_fc07eb8c\n"
 452 "    bl      sub_fc07d624\n"
 453 "    bl      sub_fc07ed70\n"
 454 "bl support_fi2_boot\n"         // +
 455 "    ldr     pc, =0xFC08C4D3\n" // -> continue in fw
 456     );
 457 }
 459 /*
 460     *** workaround ***
 461     Init stuff to avoid asserts on cameras running DryOS r54+
 462     Execute this only once
 463  */
 464 void init_required_fw_features(void) {
 465     extern int _CreateBinarySemaphore(int, int);
 467     // aperture related semaphore
 468     *(int*)0x2E804 = _CreateBinarySemaphore(0, 0);
 469     // focuslens related semaphore (may not be needed as sd override does not work)
 470     *(int*)(0x2E7E0+0xC) = _CreateBinarySemaphore(0, 0);
 471 }
 473 void support_fi2_boot(void) {
 474     // following is for FI2 boot, see sub_FC07ED70
 475     // 0x9bbc stores the reason of startup, which is read from the subcpu
 476     // when booting with fi2, 0x9bbc remains zero, resulting in immediate shutdown
 477     // let's start in playback mode instead
 478     if (*(int*)0x9bbc == 0) *(int*)0x9bbc = 0x8000000; // playback
 479 }
 481 //taskcreate_physw
 482 void __attribute__((naked,noinline)) sub_fc08c8ee_my() {
 483     asm volatile (
 484 "    push    {r3, r4, r5, lr}\n"
 485 "    bl      sub_fc08029c\n"
 486 "    bl      sub_fc07ea10\n"        // IsFactoryMode_FW
 487 "    cbnz    r0, loc_fc08c8fe\n"
 488 "    bl      sub_fc080240\n"        // OpLog.Start_FW
 489 "loc_fc08c8fe:\n"
 490 "    ldr     r4, =0x000082cc\n"
 491 "    ldr     r0, [r4, #4]\n"
 492 "    cmp     r0, #0\n"
 493 "    bne     loc_fc08c91a\n"
 494 "    movs    r3, #0\n"
 495 "    str     r3, [sp]\n"
 496 "    ldr     r3, =mykbd_task\n"     // original: 0xfc08c8c9, task_PhySw
 497 "    movs    r1, #0x17\n"
 498 "    ldr     r0, =0xfc08cc2c\n"     // *"PhySw"
 499 "    movw    r2, #0x2000\n"         // original: 0x800
 500 "    blx     sub_fc314c8c\n"        // j_CreateTaskStrictly
 501 "    str     r0, [r4, #4]\n"
 502 "loc_fc08c91a:\n"
 503 "    pop     {r3, r4, r5, pc}\n"
 504     ".ltorg\n"
 505     );
 506 }
 508 void __attribute__((naked,noinline)) init_file_modules_task() {
 509     asm volatile (
 510 // task_InitFileModules 0xfc0d4a01
 511 "    push    {r4, r5, r6, lr}\n"
 512 "    movs    r0, #6\n"
 513 "    bl      sub_fc363042\n"
 514 "    bl      sub_fc138bc0\n"
 515 "    movs    r4, r0\n"
 516 "    movw    r5, #0x5006\n"
 517 "    beq     loc_fc0d4a1c\n"
 518 "    movs    r1, #0\n"
 519 "    mov     r0, r5\n"
 520 "    bl      sub_fc3858fc\n"        // PostLogicalEventToUI_FW
 521 "loc_fc0d4a1c:\n"
 522 "    bl      sub_fc138bea\n"
 523 "    BL      ifm_done\n"            // + CHDK: file modules inited (port specific function)
 524 "    cmp     r4, #0\n"
 525 "    bne     loc_fc0d4a30\n"
 526 "    mov     r0, r5\n"
 527 "    pop.w   {r4, r5, r6, lr}\n"
 528 "    movs    r1, #1\n"
 529 "    b.w     sub_fc3858fc\n"        // PostLogicalEventToUI_FW
 530 "loc_fc0d4a30:\n"
 531 "    pop     {r4, r5, r6, pc}\n"
 532     );
 533 }
 535 void __attribute__((naked,noinline)) kbd_p2_f_my() {
 536     asm volatile(
 537 // kbd_p2_f 0xfc08c625
 538 "    push.w  {r4, r5, r6, r7, r8, lr}\n"
 539 "    ldr     r6, =0x00056c10\n"
 540 "    sub     sp, #0x18\n"
 541 "    add     r7, sp, #8\n"
 542 "    subs    r6, #0xc\n"
 543 "    b       loc_fc08c666\n"
 544 "loc_fc08c632:\n"
 545 "    ldr     r1, =0x00056c10\n"
 546 "    add     r3, sp, #8\n"
 547 "    ldrb.w  r0, [sp, #4]\n"
 548 "    add     r2, sp, #0x14\n"
 549 "    subs    r1, #0x18\n"
 550 "    bl      sub_fc07f358\n"
 551 "    cbnz    r0, loc_fc08c64c\n"
 552 "    ldr     r1, [sp, #0x14]\n"
 553 "    movs    r0, #0\n"
 554 "    bl      sub_fc08c596\n"
 555 "loc_fc08c64c:\n"
 556 "    movs    r0, #2\n"
 557 "loc_fc08c64e:\n"
 558 "    ldr.w   r1, [r7, r0, lsl #2]\n"
 559 "    cbz     r1, loc_fc08c65e\n"
 560 "    ldr.w   r2, [r6, r0, lsl #2]\n"
 561 "    bics    r2, r1\n"
 562 "    str.w   r2, [r6, r0, lsl #2]\n"
 563 "loc_fc08c65e:\n"
 564 "    subs    r0, r0, #1\n"
 565 "    sxtb    r0, r0\n"
 566 "    cmp     r0, #0\n"
 567 "    bge     loc_fc08c64e\n"
 568 "loc_fc08c666:\n"
 569 "    ldr     r0, =0x00056c10\n"
 570 "    add     r1, sp, #4\n"
 571 "    subs    r0, #0xc\n"
 572 "    bl      sub_fc07f072\n"
 573 "    cmp     r0, #0\n"
 574 "    bne     loc_fc08c632\n"
 575 "    ldr.w   r8, =0x00056c10\n"
 576 "    movs    r4, #0\n"
 577 "loc_fc08c67a:\n"
 578 "    movs    r5, #0\n"
 579 "    ldr.w   r0, [r6, r4, lsl #2]\n"
 580 "    ldr.w   r1, [r8, r4, lsl #2]\n"
 581 "    ands    r0, r1\n"
 582 "    str.w   r0, [r6, r4, lsl #2]\n"
 583 "    b       loc_fc08c6d2\n"
 584 "loc_fc08c68c:\n"
 585 "    lsrs    r0, r5\n"
 586 "    lsls    r0, r0, #0x1f\n"
 587 "    beq     loc_fc08c6ca\n"
 588 "    ldr     r1, =0x00056c10\n"
 589 "    add.w   r0, r5, r4, lsl #5\n"
 590 "    add     r3, sp, #8\n"
 591 "    subs    r1, #0x18\n"
 592 "    add     r2, sp, #0x14\n"
 593 "    uxtb    r0, r0\n"
 594 "    bl      sub_fc07f358\n"
 595 "    cbnz    r0, loc_fc08c6ae\n"
 596 "    ldr     r1, [sp, #0x14]\n"
 597 "    movs    r0, #1\n"
 598 "    bl      sub_fc08c596\n"
 599 "loc_fc08c6ae:\n"
 600 "    mov     r0, r4\n"
 601 "    b       loc_fc08c6c6\n"
 602 "loc_fc08c6b2:\n"
 603 "    ldr.w   r1, [r7, r0, lsl #2]\n"
 604 "    cbz     r1, loc_fc08c6c2\n"
 605 "    ldr.w   r2, [r6, r0, lsl #2]\n"
 606 "    bics    r2, r1\n"
 607 "    str.w   r2, [r6, r0, lsl #2]\n"
 608 "loc_fc08c6c2:\n"
 609 "    adds    r0, r0, #1\n"
 610 "    sxtb    r0, r0\n"
 611 "loc_fc08c6c6:\n"
 612 "    cmp     r0, #3\n"
 613 "    blt     loc_fc08c6b2\n"
 614 "loc_fc08c6ca:\n"
 615 "    ldr.w   r0, [r6, r4, lsl #2]\n"
 616 "    adds    r5, r5, #1\n"
 617 "    uxtb    r5, r5\n"
 618 "loc_fc08c6d2:\n"
 619 "    cmp     r0, #0\n"
 620 "    bne     loc_fc08c68c\n"
 621 "    adds    r4, r4, #1\n"
 622 "    sxtb    r4, r4\n"
 623 "    cmp     r4, #3\n"
 624 "    blt     loc_fc08c67a\n"
 625 "    bl      sub_fc07eeac_my\n"     // ->
 626 "    add     sp, #0x18\n"
 627 "    pop.w   {r4, r5, r6, r7, r8, pc}\n"
 628 ".ltorg\n"
 629     );
 630 }
 632 void __attribute__((naked,noinline)) sub_fc07eeac_my() {
 633     asm volatile(
 634 "    push    {r4, lr}\n"
 635 "    ldr     r4, =0x00009bd0\n"
 636 "    subs    r4, #0x1c\n"
 637 "    ldr     r0, [r4, #0xc]\n"
 638 "    bl      sub_fc0804c0\n"
 639 "    ldr     r0, [r4, #0x10]\n"
 640 "    bl      sub_fc08054a\n"
 641 "    bl      sub_fc17a004\n"
 642 "    ldr     r0, [r4, #0x14]\n"
 643 "    bl      sub_fc0803f0\n"
 644 //"    pop.w   {r4, lr}\n"          // -
 645 //"    b.w     sub_fc0c3b3c\n"      // -
 646 "    bl      handle_jogdial\n"      // +
 647 "    cmp     r0, #0\n"              // +
 648 "    beq     no_scroll\n"           // +
 649 "    bl      sub_fc0c3b3c\n"        // handles scrollwheel(s), void function, no args
 650 "no_scroll:\n"                      // +
 651 "    pop     {r4, pc}\n"            // +
 652 ".ltorg\n"
 653     );
 654 }
 656 void __attribute__((naked,noinline)) kbd_p1_f_cont_my() {
 657     asm volatile(
 658 // kbd_p1_f_cont 0xfc08cbb5
 659 "    ldr     r3, =0x00056bec\n"
 660 "    movs    r0, #2\n"
 661 "    mov     r5, sp\n"
 662 "    add.w   r6, r3, #0x24\n"
 663 "loc_fc08cbbe:\n"
 664 "    add.w   r1, r6, r0, lsl #2\n"
 665 "    ldr.w   r2, [r3, r0, lsl #2]\n"
 666 "    ldr     r7, [r1, #0xc]\n"
 667 "    ldr     r1, [r1, #0x18]\n"
 668 "    and.w   r2, r2, r7\n"
 669 "    eor.w   r2, r2, r1\n"
 670 "    str.w   r2, [r5, r0, lsl #2]\n"
 671 "    subs    r0, r0, #1\n"
 672 "    bpl     loc_fc08cbbe\n"
 673 "    bl      xtra_kbd_cb \n"            // +
 674 "    mov     r3, r0 \n"                 // +
 675 "    ldr     r2, =0x00056bec\n"
 676 "    mov     r0, sp\n"
 677 "    adds    r2, #0x18\n"
 678 "    sub.w   r1, r2, #0xc\n"            // 0x56bf8, switchstatus
 679 "    bl      sub_fc08c6e8_my\n"         // -> some physical status is re-read here (not into physw_status)
 680 "    ldr     r0, =0x00056bec\n"
 681 "    adds    r0, #0xc\n"                // 0x56bf8, switchstatus
 682 "    bl      sub_fc07ee60\n"
 683 "    cmp     r0, #1\n"
 684 "    bne     loc_fc08cbf6\n"
 685 "    movs    r4, #1\n"
 686 "loc_fc08cbf6:\n"
 687 "    ldr     r2, =0x00056bec\n"
 688 "    movs    r0, #2\n"
 689 "    adds    r2, #0x18\n"
 690 "    sub.w   r3, r2, #0xc\n"            // 0x56bf8, switchstatus
 691 "loc_fc08cc00:\n"
 692 "    ldr.w   r1, [r2, r0, lsl #2]\n"
 693 "    cbz     r1, loc_fc08cc1a\n"
 694 "    ldr.w   r4, [r3, r0, lsl #2]\n"
 695 "    ldr.w   r6, [r5, r0, lsl #2]\n"
 696 "    bics    r4, r1\n"
 697 "    ands    r1, r6\n"
 698 "    orrs    r4, r1\n"
 699 "    str.w   r4, [r3, r0, lsl #2]\n"
 700 "    movs    r4, #1\n"
 701 "loc_fc08cc1a:\n"
 702 "    subs    r0, r0, #1\n"
 703 "    bpl     loc_fc08cc00\n"
 704 "    mov     r0, r4\n"
 705 "    pop     {r1, r2, r3, r4, r5, r6, r7, pc}\n"
 706     );
 707 }
 709 void __attribute__((naked,noinline)) sub_fc08c6e8_my() {
 710     asm volatile(
 711 "    push.w  {r0, r1, r2, r3, r4, r5, r6, r7, r8, sb, sl, fp, ip, lr}\n"
 712 "    ldr     r4, =0x00056c10\n"
 713 "    mov     r5, r0\n"
 714 //"    mov.w   r0, #-1\n"               // - should be (physw_status[1] & 0x41fe9) when overriding, -1 otherwise
 715 "    mov     r0, r3 \n"                 // + (new argument to allow passing our variable)
 716 "    b       sub_fc08c6f4\n"            // jump back to ROM
 717     );
 718 }
 721 void __attribute__((naked,noinline)) task_TricInitTask_my() {
 722     asm volatile(
 723 // capdis -f=chdk -s=task_TricInitTask -c=35 -stubs PRIMARY.BIN 0xfc000000
 724 // task_TricInitTask 0xfc56075d
 725 "    push.w  {r0, r1, r2, r3, r4, r5, r6, r7, r8, sb, sl, fp, ip, lr}\n"
 726 "    movs    r0, #8\n"
 727 "    ldr     r1, =0xfc560988\n" //  *"InitTskStart"
 728 "    bl      sub_fc37fa52\n"
 729 "    ldr.w   sl, =0x0002e7d8\n"
 730 "    movw    fp, #0x1000\n"
 731 "    ldr     r4, =0x0002e7d4\n"
 732 "    movs    r2, #0\n"
 733 "    ldr     r1, =0x0703870f\n"
 734 "    ldr     r0, [r4]\n"
 735 "    blx     sub_fc314de4\n" // j_WaitForAnyEventFlag
 736 "    lsls    r0, r0, #0x1f\n"
 737 "    beq     loc_fc560792\n"
 738 "    movs    r0, #8\n"
 739 "    ldr     r1, =0xfc5609a0\n" //  *"ER IniTskWait"
 740 "    bl      sub_fc37fab2\n"
 741 "    ldr     r1, =0x0002e7c0\n"
 742 "    movs    r0, #0\n"
 743 "    str     r0, [r1]\n"
 744 "    pop.w   {r0, r1, r2, r3, r4, r5, r6, r7, r8, sb, sl, fp, ip, pc}\n"
 745 "loc_fc560792:\n"
 746 "    ldr     r4, =0x0002e7d4\n"
 747 "    add     r1, sp, #0xc\n"
 748 "    ldr     r0, [r4]\n"
 749 "    blx     sub_fc314b44\n" // j_GetEventFlagValue
 750 "    ldr     r1, [sp, #0xc]\n"
 751 "    ldr     r0, [r4]\n"
 752 "    blx     sub_fc314d3c\n" // j_ClearEventFlag
 753 "    ldr     r0, =0x02000003\n"
 754 "    ldr     r7, [sp, #0xc]\n"
 755 "    tst     r7, r0\n"
 756 "    beq     sub_fc560896\n"    // loc -> sub
 757 "    lsls    r0, r7, #0x1f\n"
 758 "    beq     sub_fc5607b6\n"    // loc -> sub
 760 "    ldr     r0, =0xd2020074\n" // +
 761 "    ldr     r0, [r0]\n"        // + nonzero when core already running
 762 "    subs    r0, #0\n"          // +
 763 "    beq     tric1\n"           // +
 764 "    ldr     r0, [r4]\n"        // +
 765 "    mov     r1, #0x80\n"       // +
 766 "    bl      _SetEventFlag\n"   // + core already initialized, set the SmacIdleCmp eventflag here
 767 "tric1:\n"                      // +
 769 "    bl      sub_fc560c3a\n"
 770 "    b       sub_fc560822\n"    // loc -> sub
 771     );
 772 }