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iso7816_fidi: Add iso7816_3_ prefix to symbols; fix terminology

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Fi/Di are not the index into the table, but the contents of the table
as resolved by Fi_index / Di_index.  Let's clarify the terminology.

Change-Id: If364e08e7c9a3a9707e6d54b9267c6a7c088e415
This commit is contained in:
Harald Welte
2021-04-05 18:08:49 +02:00
committed by laforge
parent 79f0ea73a2
commit c1ffc8a603
5 changed files with 19 additions and 18 deletions
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8
firmware/libcommon/include/iso7816_fidi.h
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@@ -21,10 +21,10 @@
#include <stdint.h>
/* Table 7 of ISO 7816-3:2006 */
extern const uint16_t fi_table[];
extern const uint16_t iso7816_3_fi_table[16];
/* Table 8 from ISO 7816-3:2006 */
extern const uint8_t di_table[];
extern const uint8_t iso7816_3_di_table[16];
/* compute the F/D ratio based on Fi and Di values */
int compute_fidi_ratio(uint8_t fi, uint8_t di);
/* compute the F/D ratio based on F_index and D_index values */
int iso7816_3_compute_fd_ratio(uint8_t f_index, uint8_t d_index);