protocol/usb_hid/USB_Host_Shield_2.0/cdcprolific.h

   1 /* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved.
   2
   3 This software may be distributed and modified under the terms of the GNU
   4 General Public License version 2 (GPL2) as published by the Free Software
   5 Foundation and appearing in the file GPL2.TXT included in the packaging of
   6 this file. Please note that GPL2 Section 2[b] requires that all works based
   7 on this software must also be made publicly available under the terms of
   8 the GPL2 ("Copyleft").
   9
  10 Contact information
  11 -------------------
  12
  13 Circuits At Home, LTD
  14 Web      :  http://www.circuitsathome.com
  15 e-mail   :  support@circuitsathome.com
  16  */
  17 #if !defined(__CDCPROLIFIC_H__)
  18 #define __CDCPROLIFIC_H__
  19
  20 #include "cdcacm.h"
  21
  22 //#define PL2303_COMPAT // Uncomment it if you have compatibility problems
  23
  24 #define PL_VID                                  0x067B
  25 #define CHECK_PID(pid)                          ( pid != 0x2303 && pid != 0x0609 )
  26
  27 //#define PL_PID                                0x0609
  28
  29 #define PROLIFIC_REV_H                          0x0202
  30 #define PROLIFIC_REV_X                          0x0300
  31 #define PROLIFIC_REV_HX_CHIP_D                  0x0400
  32 #define PROLIFIC_REV_1                          0x0001
  33
  34 #define kXOnChar                                '\x11'
  35 #define kXOffChar                               '\x13'
  36
  37 #define SPECIAL_SHIFT                           (5)
  38 #define SPECIAL_MASK                            ((1<<SPECIAL_SHIFT) - 1)
  39 #define STATE_ALL                               ( PD_RS232_S_MASK | PD_S_MASK )
  40 #define FLOW_RX_AUTO                            ( PD_RS232_A_RFR | PD_RS232_A_DTR | PD_RS232_A_RXO )
  41 #define FLOW_TX_AUTO                            ( PD_RS232_A_CTS | PD_RS232_A_DSR | PD_RS232_A_TXO | PD_RS232_A_DCD )
  42 #define CAN_BE_AUTO                             ( FLOW_RX_AUTO | FLOW_TX_AUTO )
  43 #define CAN_NOTIFY                              ( PD_RS232_N_MASK )
  44 #define EXTERNAL_MASK                           ( PD_S_MASK | (PD_RS232_S_MASK & ~PD_RS232_S_LOOP) )
  45 #define INTERNAL_DELAY                          ( PD_RS232_S_LOOP )
  46 #define DEFAULT_AUTO                            ( PD_RS232_A_DTR | PD_RS232_A_RFR | PD_RS232_A_CTS | PD_RS232_A_DSR )
  47 #define DEFAULT_NOTIFY                          0x00
  48 #define DEFAULT_STATE                           ( PD_S_TX_ENABLE | PD_S_RX_ENABLE | PD_RS232_A_TXO | PD_RS232_A_RXO )
  49
  50 #define CONTINUE_SEND                           1
  51 #define PAUSE_SEND                              2
  52
  53 #define kRxAutoFlow                             ((UInt32)( PD_RS232_A_RFR | PD_RS232_A_DTR | PD_RS232_A_RXO ))
  54 #define kTxAutoFlow                             ((UInt32)( PD_RS232_A_CTS | PD_RS232_A_DSR | PD_RS232_A_TXO | PD_RS232_A_DCD ))
  55 #define kControl_StateMask                      ((UInt32)( PD_RS232_S_CTS | PD_RS232_S_DSR | PD_RS232_S_CAR | PD_RS232_S_RI  ))
  56 #define kRxQueueState                           ((UInt32)( PD_S_RXQ_EMPTY | PD_S_RXQ_LOW_WATER | PD_S_RXQ_HIGH_WATER | PD_S_RXQ_FULL ))
  57 #define kTxQueueState                           ((UInt32)( PD_S_TXQ_EMPTY | PD_S_TXQ_LOW_WATER | PD_S_TXQ_HIGH_WATER | PD_S_TXQ_FULL ))
  58
  59 #define kCONTROL_DTR                            0x01
  60 #define kCONTROL_RTS                            0x02
  61
  62 #define kStateTransientMask                     0x74
  63 #define kBreakError                             0x04
  64 #define kFrameError                             0x10
  65 #define kParityError                            0x20
  66 #define kOverrunError                           0x40
  67
  68 #define kCTS                                    0x80
  69 #define kDSR                                    0x02
  70 #define kRI                                     0x08
  71 #define kDCD                                    0x01
  72 #define kHandshakeInMask                        ((UInt32)( PD_RS232_S_CTS | PD_RS232_S_DSR | PD_RS232_S_CAR | PD_RS232_S_RI  ))
  73
  74 #define VENDOR_WRITE_REQUEST_TYPE               0x40
  75 #define VENDOR_WRITE_REQUEST                    0x01
  76
  77 #define VENDOR_READ_REQUEST_TYPE                0xc0
  78 #define VENDOR_READ_REQUEST                     0x01
  79
  80 // Device Configuration Registers (DCR0, DCR1, DCR2)
  81 #define SET_DCR0                                0x00
  82 #define GET_DCR0                                0x80
  83 #define DCR0_INIT                               0x01
  84 #define DCR0_INIT_H                             0x41
  85 #define DCR0_INIT_X                             0x61
  86
  87 #define SET_DCR1                                0x01
  88 #define GET_DCR1                                0x81
  89 #define DCR1_INIT_H                             0x80
  90 #define DCR1_INIT_X                             0x00
  91
  92 #define SET_DCR2                                0x02
  93 #define GET_DCR2                                0x82
  94 #define DCR2_INIT_H                             0x24
  95 #define DCR2_INIT_X                             0x44
  96
  97 // On-chip Data Buffers:
  98 #define RESET_DOWNSTREAM_DATA_PIPE              0x08
  99 #define RESET_UPSTREAM_DATA_PIPE                0x09
 100
 101
 102 #define PL_MAX_ENDPOINTS                        4
 103
 104 enum tXO_State {
 105         kXOnSent = -2,
 106         kXOffSent = -1,
 107         kXO_Idle = 0,
 108         kXOffNeeded = 1,
 109         kXOnNeeded = 2
 110 };
 111
 112 enum pl2303_type {
 113         unknown,
 114         type_0, /* don't know the difference between type 0 and */
 115         type_1, /* type 1, until someone from prolific tells us... */
 116         rev_X,
 117         rev_HX, /* HX version of the pl2303 chip */
 118         rev_H
 119 };
 120
 121
 122 class PL2303 : public ACM {
 123         uint16_t wPLType; // Type of chip
 124
 125 public:
 126         PL2303(USB *pusb, CDCAsyncOper *pasync);
 127
 128         // USBDeviceConfig implementation
 129         uint8_t Init(uint8_t parent, uint8_t port, bool lowspeed);
 130         //virtual uint8_t Release();
 131         //virtual uint8_t Poll();
 132         //virtual uint8_t GetAddress() { return bAddress; };
 133
 134         //// UsbConfigXtracter implementation
 135         //virtual void EndpointXtract(uint8_t conf, uint8_t iface, uint8_t alt, uint8_t proto, const USB_ENDPOINT_DESCRIPTOR *ep);
 136
 137 #ifdef PL2303_COMPAT
 138 private:
 139         /* Prolific proprietary requests */
 140         uint8_t vendorRead( uint8_t val_lo, uint8_t val_hi, uint16_t index, uint8_t* buf );
 141         uint8_t vendorWrite( uint8_t val_lo, uint8_t val_hi, uint8_t index );
 142 #endif
 143 };
 144
 145 #ifdef PL2303_COMPAT
 146 /* vendor read request */
 147 inline uint8_t PL2303::vendorRead( uint8_t val_lo, uint8_t val_hi, uint16_t index, uint8_t* buf )
 148 {
 149         return( pUsb->ctrlReq(bAddress, 0, VENDOR_READ_REQUEST_TYPE, VENDOR_READ_REQUEST, val_lo, val_hi, index, 1, 1, buf, NULL ));
 150 }
 151
 152 /* vendor write request */
 153 inline uint8_t PL2303::vendorWrite( uint8_t val_lo, uint8_t val_hi, uint8_t index )
 154 {
 155         return( pUsb->ctrlReq(bAddress, 0, VENDOR_WRITE_REQUEST_TYPE, VENDOR_WRITE_REQUEST, val_lo, val_hi, index, 0, 0, NULL, NULL ));
 156 }
 157 #endif
 158
 159 #endif // __CDCPROLIFIC_H__