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1//-----------------------------------------------------------------------------
2// Willok, June 2018
3// Edits by Iceman, July 2018
4//
5// This code is licensed to you under the terms of the GNU GPL, version 2 or,
6// at your option, any later version. See the LICENSE.txt file for the text of
7// the license.
8//-----------------------------------------------------------------------------
9// The main i2c code, for communications with smart card module
10//-----------------------------------------------------------------------------
11
12#include "i2c.h"
13
14#include <stdint.h>
15#include <stdbool.h>
16#include "string.h" //for memset memcmp
17#include "proxmark3.h"
18#include "mifareutil.h" // for MF_DBGLEVEL
19#include "BigBuf.h"
20#include "apps.h"
21#include "usb_cdc.h"
22
23#ifdef WITH_SMARTCARD
24#include "smartcard.h"
25#endif
26
27
28#define GPIO_RST AT91C_PIO_PA1
29#define GPIO_SCL AT91C_PIO_PA5
30#define GPIO_SDA AT91C_PIO_PA7
31
32#define SCL_H HIGH(GPIO_SCL)
33#define SCL_L LOW(GPIO_SCL)
34#define SDA_H HIGH(GPIO_SDA)
35#define SDA_L LOW(GPIO_SDA)
36
37#define SCL_read (AT91C_BASE_PIOA->PIO_PDSR & GPIO_SCL)
38#define SDA_read (AT91C_BASE_PIOA->PIO_PDSR & GPIO_SDA)
39
40#define I2C_ERROR "I2C_WaitAck Error"
41
42static volatile unsigned long c;
43
44