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Add generic tear-off hook

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This commit is contained in:
Philippe Teuwen 2020-10-09 01:52:42 +02:00
commit 7f8a4b4182
5 changed files with 119 additions and 16 deletions
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39
armsrc/lfops.c
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@ -2573,15 +2573,20 @@ void EM4xWriteWord(uint8_t addr, uint32_t data, uint32_t pwd, uint8_t usepwd) {
SendForward(len);
// Wait 20ms for write to complete?
// No, when write is denied, err preamble comes much sooner
//WaitUS(10820); // tPC+tWEE
if (tearoff_hook() == PM3_ETEAROFF) { // tearoff occured
StopTicks();
reply_ng(CMD_LF_EM4X_WRITEWORD, PM3_ETEAROFF, NULL, 0);
} else {
// Wait 20ms for write to complete?
// No, when write is denied, err preamble comes much sooner
//WaitUS(10820); // tPC+tWEE
DoPartialAcquisition(0, false, 6000, 1000);
DoPartialAcquisition(0, false, 6000, 1000);
StopTicks();
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
reply_ng(CMD_LF_EM4X_WRITEWORD, PM3_SUCCESS, NULL, 0);
StopTicks();
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
reply_ng(CMD_LF_EM4X_WRITEWORD, PM3_SUCCESS, NULL, 0);
}
LEDsoff();
}
@ -2610,15 +2615,19 @@ void EM4xProtectWord(uint32_t data, uint32_t pwd, uint8_t usepwd) {
SendForward(len);
// Wait 20ms for write to complete?
// No, when write is denied, err preamble comes much sooner
//WaitUS(13640); // tPC+tPR
if (tearoff_hook() == PM3_ETEAROFF) { // tearoff occured
StopTicks();
reply_ng(CMD_LF_EM4X_PROTECTWORD, PM3_ETEAROFF, NULL, 0);
} else {
// Wait 20ms for write to complete?
// No, when write is denied, err preamble comes much sooner
//WaitUS(13640); // tPC+tPR
DoPartialAcquisition(0, false, 6000, 1000);
StopTicks();
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
reply_ng(CMD_LF_EM4X_PROTECTWORD, PM3_SUCCESS, NULL, 0);
DoPartialAcquisition(0, false, 6000, 1000);
StopTicks();
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
reply_ng(CMD_LF_EM4X_PROTECTWORD, PM3_SUCCESS, NULL, 0);
}
LEDsoff();
}