USBHALHost.h

00001 // Simple USBHost for FRDM-KL46Z
00002 #pragma once
00003 #include "mbed.h"
00004 #include "USBHostTypes.h"
00005 #include "USBEndpoint.h"
00006 
00007 struct SETUP_PACKET {
00008     uint8_t bmRequestType;
00009     uint8_t bRequest;
00010     uint16_t wValue;
00011     uint16_t wIndex;
00012     uint16_t wLength;
00013 };
00014 
00015 #define GET_CONFIGURATION 8
00016 
00017 // TOK_PID[5:2]
00018 #define Bus_Timeout 0x00
00019 #define Data_Error 0x0f
00020 
00021 enum ODD_EVEN {
00022     ODD = 0,
00023     EVEN = 1,
00024 };
00025 
00026 class Report {
00027 public:
00028     void clear();
00029     void print_errstat();
00030     // error count
00031     uint32_t errstat_piderr; // USBx_ERRSTAT[PIDERR]
00032     uint32_t errstat_crc5eof;// USBx_ERRSTAT[CRC5EOF]
00033     uint32_t errstat_crc16;  // USBx_ERRSTAT[CRC16]
00034     uint32_t errstat_dfn8;   // USBx_ERRSTAT[DFN8]
00035     uint32_t errstat_btoerr; // USBx_ERRSTAT[BTOERR]
00036     uint32_t errstat_dmaerr; // USBx_ERRSTAT[DMAERR]
00037     uint32_t errstat_bsterr; // USBx_ERRSTAT[BTSERR]
00038     //
00039     uint32_t nak;
00040     uint32_t stall;
00041 };
00042 
00043 class USBHALHost {
00044 public:
00045     uint8_t LastStatus;
00046     uint8_t prev_LastStatus;
00047     Report report;
00048 
00049 protected:
00050     USBHALHost();
00051     void init();
00052     virtual bool addDevice(int port, int hub, bool lowSpeed) = 0;
00053     void setAddr(int addr, bool lowSpeed = false);
00054     void setEndpoint();
00055     void token_transfer_init();
00056     int token_setup(USBEndpoint* ep, SETUP_PACKET* setup, uint16_t wLength = 0);
00057     int token_in(USBEndpoint* ep, uint8_t* data = NULL, int size = 0, int retryLimit = 10);
00058     int token_out(USBEndpoint* ep, const uint8_t* data = NULL, int size = 0, int retryLimit = 10);
00059     int token_iso_in(USBEndpoint* ep, uint8_t* data, int size);
00060     void token_ready();
00061 private:
00062     static void _usbisr(void);
00063     void UsbIrqhandler();
00064     __IO bool attach_done;
00065     __IO bool token_done;
00066     bool wait_attach();
00067     bool root_lowSpeed;
00068     ODD_EVEN tx_ptr;
00069     ODD_EVEN rx_ptr;
00070     static USBHALHost * instHost;
00071 };