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Introducing BULK commands to reduce bandwidth.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2026-02-19 18:29:37 +01:00
parent 57e88f85ee
commit 6b483029a5
2 changed files with 28 additions and 0 deletions
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27
src/apdu.c
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@@ -254,3 +254,30 @@ uint16_t apdu_next() {
}
return 0;
}
int bulk_cmd(int (*cmd)()) {
uint8_t *p = apdu.data;
uint8_t *rapdu = apdu.rdata;
uint16_t rapdu_size = 0;
uint8_t *top = apdu.data + apdu.nc;
while (p < top) {
P1(apdu) = p[0];
P2(apdu) = p[1];
apdu.nc = p[2];
apdu.data = p + 3;
*apdu.rdata++ = p[0];
*apdu.rdata++ = p[1];
*apdu.rdata++ = 0;
*apdu.rdata++ = 0;
apdu.rlen = 0;
cmd();
put_uint16_t_be(apdu.rlen, apdu.rdata - 2);
put_uint16_t_be(apdu.sw, apdu.rdata + apdu.rlen);
rapdu_size += 4 + apdu.rlen + 2;
apdu.rdata += apdu.rlen + 2;
p += 3 + apdu.nc;
}
apdu.rlen = rapdu_size;
apdu.rdata = rapdu;
return SW_OK();
}

1
src/apdu.h
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@@ -74,5 +74,6 @@ extern uint16_t apdu_process(uint8_t, const uint8_t *buffer, uint16_t buffer_siz
extern void apdu_finish();
extern uint16_t apdu_next();
extern void *apdu_thread(void *);
extern int bulk_cmd(int (*cmd)());
#endif