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Add OTP extra command to read/write OTP without bootmode.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos 2024-10-13 20:25:59 +02:00
parent 0193e55f7b
commit 08d4dc58aa
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GPG key ID: C0095B7870A4CCD3
2 changed files with 25 additions and 1 deletions
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2
pico-keys-sdk

@ -1 +1 @@
Subproject commit 84c3efd78292ebbb8473df667ab80310488d30a7
Subproject commit 6216cd24be025d6ccd43c3358cc48ec7eac4556f

24
src/hsm/cmd_extras.c
View file

@ -37,6 +37,7 @@
#define SECURE_LOCK_MASK 0x3
#define SECURE_LOCK_DISABLE 0x4
#define CMD_PHY 0x1B
#define CMD_OTP 0x4C
int cmd_extras() {
#ifndef ENABLE_EMULATION
@ -249,6 +250,29 @@ int cmd_extras() {
low_flash_available();
}
}
#endif
#if RP2350
else if (P1(apdu) == CMD_OTP) {
if (apdu.nc < 2) {
return SW_WRONG_LENGTH();
}
uint16_t row = (apdu.data[0] << 8) | apdu.data[1];
apdu.nc -= 2;
apdu.data += 2;
if (apdu.nc == 2) {
memcpy(res_APDU, otp_buffer(row), apdu.ne);
res_APDU_size = apdu.ne;
}
else {
if (!(apdu.nc % 16)) {
return SW_WRONG_DATA();
}
int ret = otp_write_data(row, apdu.data, apdu.nc);
if (ret != 0) {
return SW_EXEC_ERROR();
}
}
}
#endif
else {
return SW_INCORRECT_P1P2();