1 files changed, 0 insertions, 106 deletions
diff --git a/openpcd/firmware/src/picc/iso14443a_manchester.c b/openpcd/firmware/src/picc/iso14443a_manchester.c
deleted file mode 100644
index aca832c..0000000
--- a/openpcd/firmware/src/picc/iso14443a_manchester.c
+++ /dev/null
@@ -1,106 +0,0 @@
-/* 
- * ISO14443A Manchester encoder
- * (C) 2006 by Harald Welte <hwelte@hmw-consulting.de>
- *
- * Definitions for 106kBps, at sampling clock 1695kHz
- *
- * 		bit sample pattern for one bit cycle
- * 		MSB first		LSB first	hex LSB first
- * Sequence D	1010101000000000	0000000001010101	0x0055
- * Sequence E	0000000010101010	0101010100000000	0x5500
- * Sequence F	1010101010101010	0101010101010101	0x5555
- *
- * Logic 1	Sequence D
- * Logic 0	Sequence E
- * SOF		Sequence D
- * EOF		Sequence F
- *
- * 212/424/848kBps: BPSK.
- *
- * SOF: 32 subcarrier clocks + bit '0'
- *
- * SOF:		hex LSB first: 0x55555555 55555555 + bit '0'
- *
- * EOF:		even parity of last byte (!)
- *
- */
-
-#define MANCHESTER_SEQ_D	0x0055
-#define MANCHESTER_SEQ_E	0x5500
-#define MANCHESTER_SEQ_F	0x5555
-
-static u_int32_t manchester_sample_size(u_int8_t frame_bytelen)
-{
-	/* 16 bits (2 bytes) per bit => 16 bytes samples per data byte,
-	 * plus 16bit (2 bytes) parity per data byte
-	 * plus 16bit (2 bytes) SOF plus 16bit (2 bytes) EOF */
-	return (frame_bytelen*18) + 2 + 2;
-
-	/* this results in a maximum samples-per-frame size of 4612 bytes
-	 * for a 256byte frame */
-}
-
-struct manch_enc_state {
-	const char *data;
-	char *samples;
-	u_int16_t *samples16;
-};
-
-static void manchester_enc_byte(struct manch_enc_state *mencs, u_int8_t data)
-{
-	int i;
-	u_int8_t sum_1 = 0;
-
-	/* append 8 sample blobs, one for each bit */
-	for (i = 0; i < 8; i++) {
-		if (data & (1 << i)) {
-			*(mencs->samples16) = MANCHESTER_SEQ_D;
-			sum_1++;
-		} else {
-			*(mencs->samples16) = MANCHESTER_SEQ_E;
-		}
-		mencs->samples16++
-	}
-	/* append odd parity */
-	if (sum_1 & 0x01)
-		*(mencs->samples16) = MANCHESTER_SEQ_E;
-	else
-		*(mencs->samples16) = MANCHESTER_SEQ_D;
-	mencs->samples16++
-}
- 
-int manchester_encode(char *sample_buf, u_int16_t sample_buf_len, 
-		      const char *data, u_int8_t data_len)
-{
-	int i, enc_size;
-	struct manch_enc_state mencs
-
-	enc_size = manchester_sample_size(data_len);
-
-	if (sample_buf_len < enc_size)
-		return -EINVAL;
-
-	/* SOF */
-	*(mencs.samples16++) = MANCHESTER_SEQ_D;
-
-	for (i = 0; i < data_len; i++)
-		manchester_enc_byte(mencs, data[i]);
-		
-	/* EOF */
-	*(mencs.samples16++) = MANCHESTER_SEQ_F;
-
-	return enc_size;
-}
-
-#define BPSK_SPEED_212	
-
-
-static u_int32_t bpsk_sample_size(u_int8_t frame_bytelen)
-
-int bpsk_encode(char *sample_buf, u_int16_t sample_buf_len,
-		const char *data, u_int8_t data_len)
-{
-	/* burst of 32 sub carrier cycles */	
-	memset(sample_buf, 0x55, 8);
-
-}