move to new directory

git-svn-id: https://svn.openpcd.org:2342/trunk@191 6dc7ffe9-61d6-0310-9af1-9938baff3ed1

1 files changed, 32 insertions, 0 deletions

diff --git a/firmware/src/picc/decoder.h b/firmware/src/picc/decoder.h
new file mode 100644
index 0000000..aef0e20
--- /dev/null
+++ b/firmware/src/picc/decoder.h
@@ -0,0 +1,32 @@
+#ifndef _DECODER_H
+#define _DECODER_H
+
+struct decoder_state;
+
+struct decoder_algo {
+	u_int8_t oversampling_rate;		
+	u_int8_t bits_per_sampled_char;
+	u_int32_t bytesample_mask;
+	int (*decode_sample)(const u_int32_t sample, u_int8_t data);
+	u_int32_t (*get_next_bytesample)(struct decoder_state *st, u_int8_t *parity_sample);
+};
+
+struct decoder_state {
+	struct decoder_algo *algo;
+	u_int8_t bit_ofs;
+	const char *buf;
+	const u_int32_t *buf32;
+};
+
+extern int decoder_register(int algnum, struct decoder_algo *algo);
+extern int decoder_decode(u_int8_t algo, const char *sample_buf,
+		  	  int sample_buf_size, char *data_buf);
+
+#define DECODER_MILLER		0
+#define DECODER_NRZL		1
+#define DECODER_NUM_ALGOS 	2
+
+static struct decoder_algo nrzl_decoder;
+static struct decoder_algo miller_decoder;
+
+#endif