Diff: BaseUsbProtocolAnalyzer.h

Revision:

0:0faa55631ffe

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/BaseUsbProtocolAnalyzer.h	Wed Jun 18 01:33:32 2014 +0000
@@ -0,0 +1,50 @@
+#pragma once
+
+typedef enum {
+    ACK = 0x02,
+    NAK = 0x0a,
+    STALL = 0x0e,
+    DATA0 = 0x03,
+    DATA1 = 0x0b,
+    IN = 0x09,
+    OUT = 0x01,
+    SETUP = 0x0d,
+} pid_t;
+
+typedef enum {
+    SEQ_SYNC,
+    SEQ_PID,
+    SEQ_ADDR,
+    SEQ_ENDP,
+    SEQ_CRC5,
+    SEQ_DATA,
+    SEQ_CRC16,
+} seq_t;
+
+class BaseUsbProtocolAnalyzer {
+public:
+    BaseUsbProtocolAnalyzer();
+    void init();
+    void input(uint8_t data);
+    bool disp_bit;
+    bool disp_cycle;
+protected:
+    virtual void output(char c) = 0;
+
+private:
+    static const int CYCLE = 32;
+    void inputBit(uint8_t pat, int len);
+    void inputLSB(int lsb);
+    void output(const char* s);
+    bool bit_stuffing;
+    seq_t seq;
+    struct {
+        pid_t pid;
+        uint8_t addr;
+        uint8_t endp;
+        uint8_t crc5;
+        uint8_t data[8+2]; // data and crc16
+    } packet;
+    int bit_count;
+    int data_count;
+};