fmcdev.c

u盘MCU端源代码,开发U盘的可以参考.

    eeprom_write(i++, k_serial_num_str_pfm[j]) ;
  }

  for(j=0;j<3;j++)
  {
    eeprom_write(i++, k_serial_num_str_evb[j]) ;
  }

  eeprom_write(i++, '#') ;
  eeprom_write(i++, '#') ;
  eeprom_write(i++, '0') ;
  eeprom_write(i++, '#') ;

  // stop writing
  eeprom_write_disable() ;
  
  mcu_end_critical_section();

  trace0(0, eeprom, 0, "** dumping serial number **") ;
  length = eeprom_read(0) ;
  trace1(0, eeprom, 0, "** eeprom contains %d bytes **", length) ;
  for(i=0;i<length;i++)
  {
    eetemp = eeprom_read(i+1) ;
    TRACE2(415, ata, 0, "sn[%d]: '%c'", i, eetemp) ;
  }
}

//------------------------------------------------------------------------------
// <<< DEVICE - MANAGER >>>
// Target MCU: 
//  FDC, 102, 200
// Declaration: 
//  uint8 dev_mngr(t_message *msgp);
// Purpose: 
//  This is the manager for all things related to the whole device.
// Arguments: 
//  None.
// Return: 
//  k_success
//  K-error
// Note:
//  Do NOT yield from this routine.  It is NOT part of any thread.  It does 
//  not execute in an any thread's context.  Yielding from within this function 
//  will cause your firmware to crash.
//------------------------------------------------------------------------------
uint8 dev_mngr(t_message *msgp) reentrant 
{
    trace0(0, dev, 0, "dev_mngr()");
    switch (message_rd_id(msgp))
    {
    case k_msg_initialize:
        trace0(0, dev, 0, "k_msg_initialize");
        // initialize gpios

        // initialize the hardware  
        // x_gpioa_out = kbm_msk_gpioa_out_unconfigured;
        // x_gpioa_dir = kbm_msk_gpioa_dir_unconfigured; 

        // create threads - no device specific threads required
        // register endpoints - do nothing here, the interface managers will handle it
        // register interfaces - do nothing here, the interface managers will handle it
        
        // initialize the application specific interface managers
        fmcapp_mngr(msgp);
        // exit, stage left
        return k_success;

    case k_msg_kill:
        trace0(0, dev, 0, "k_msg_kill");
        // terminate this manager
        //TBD
        // propagate the message to the application specific interface managers
        fmcapp_mngr(msgp);
        // dfu_mngr(msgp);
        return k_success;

    case k_msg_usbrst:
        trace0(0, dev, 0, "k_msg_usbrst");
        // configured -> unconfigured (same as set config 0 in ctl_cpex.c)
        // config the gpios
        
        // x_gpioa_out = kbm_msk_gpioa_out_unconfigured;
        // x_gpioa_dir = kbm_msk_gpioa_dir_unconfigured; 
        
        
        // propagate the message to the application specific interface managers
        fmcapp_mngr(msgp);
        // dfu_mngr(msgp);
        return k_success;

    case k_msg_resume:
        TRACE0(416, fmcdev, 0, "k_msg_resume");
        // process the usb resume notificaion
        
        // config the gpios
//        x_gpioa_out = kbm_msk_gpioa_out_resumed;
//        x_gpioa_dir = kbm_msk_gpioa_dir_resumed; 
        
        // propagate the message to the application specific interface managers
        fmcapp_mngr(msgp);

        TRACE0(417, fmcdev, 0, "Device resumed") ;
        return k_success;

    case k_msg_suspend:
        TRACE0(418, fmcdev, 0, "k_msg_suspend");
        // process the usb suspend notificaion
        // propagate the message to the application specific interface managers
        fmcapp_mngr(msgp);

        TRACE0(419, fmcdev, 0, "Device suspended") ;
        return k_success;

    default:
        TRACE0(420, fmcdev, 0, "error: dev_mngr(unexpected message)");
        // unexpected message
        return k_error;
    }
    // unexpected message
    return k_error;
}

//------------------------------------------------------------------------------
// <<< DEVICE - CONTROL PIPE EXTENSION >>>
// Target MCU: 
//  FDC, 102, 200
// Declaration: 
//  uint8 dev_cpex(t_message *msgp);
// Purpose: 
//  Handles requests targeted to the device: standard, class, vendor.
// Arguments: 
//  None.
// Return: 
//  k_success	- Causes the protocol engine to complete the status stage successfully.
//  k_error - Causes the protocol engine to stall the control pipe.
//  k_in_progress - For k_msg_source_payload, causes the protocol engine to deliver 
//   another empty packet buffer to the cpex to be loaded for transmission.
//   For k_msg_sink_payload, informs the protocol engine that the cpex expects at 
//   least one more payload buffer to be delivered to it by the protocol engine.
//  k_finished - For k_msg_source_payload and k_msg_sink_payload, informs the 
//   protocol engine that the data phase is complete and no more data is expected 
//   in either direction.
// Note:
//  Do NOT yield from this routine.  It is part of the protocol engine's thread.  
//  It executes in the context of g_ix_ctl_thread.  Yielding from within this 
//  function will cause the protocol engine's state machine to float belly up.
//  And that will cause your firmware to shuffle off this mortal coil, post haste.
//------------------------------------------------------------------------------
uint8 dev_cpex(t_message *msgp) reentrant
{
    uint8 pktsz;
    uint8 pnr;
    t_usb_rqst *rqstp;

    trace1(0, dev, 0, "dev_cpex(msg:%04X)", message_rd_id(msgp));
    rqstp = (t_usb_rqst *)(message_rd_arg(msgp));
    switch (message_rd_id(msgp))
    {

    case k_dsd_usb_get_descriptor:
        g_wtmp = rqstp->wLengthHi;
        g_wtmp *= 256;
        g_wtmp += (uint16)rqstp->wLengthLo;
        trace3(0, dev, 0, "wLengthHi:%02X wLengthLo:%02X wtmp:%d", rqstp->wLengthHi, rqstp->wLengthLo, g_wtmp);
        switch (rqstp->wValueHi)
        {
        case k_usb_dscr_typ_device:
            trace0(0, dev, 0, "RQ_GET_DESCRIPTOR: device");

            // tell the data pump where to find it and how much there is 

#ifdef k_20x_family
#ifdef k_support_eeprom
                trace0(0, dev, 0, "device reports a serial number, send correct descriptor") ;
                trace1(0, dev, 0, "x_sie_conf:%02X",x_sie_conf);
                if ((x_sie_conf & kbm_sie_conf_hspeed))
                {
                    _payload_source(&g_hs_dev_dscr_w_ser, _min(g_hs_dev_dscr_w_ser[0], g_wtmp));
                } else
                {
                    _payload_source(&g_fs_dev_dscr_w_ser, _min(g_fs_dev_dscr_w_ser[0], g_wtmp));
                }
#else // no eeprom support
                trace0(0, dev, 0, "device did not report a serial number.  non specified")
                trace1(0, dev, 0, "x_sie_conf:%02X",x_sie_conf);
                if ((x_sie_conf & kbm_sie_conf_hspeed))
                {
                    _payload_source(&g_hs_dev_dscr, _min(g_hs_dev_dscr[0], g_wtmp));
                } else
                {
                    _payload_source(&g_fs_dev_dscr, _min(g_fs_dev_dscr[0], g_wtmp));
                }
#endif // k_support_eeprom
#else
            _payload_source(&g_fs_dev_dscr, _min(g_fs_dev_dscr[0], g_wtmp));
#endif
            break;

        case k_usb_dscr_typ_devqual:
            trace0(0, dev, 0, "RQ_GET_DESCRIPTOR: devqual");
            // tell the data pump where to find it and how much there is 
#ifdef k_20x_family
            trace1(0, dev, 0, "x_sie_conf:%02X",x_sie_conf);
            if ((x_sie_conf & kbm_sie_conf_hspeed))
            {
                _payload_source(&g_fs_devqual_dscr, _min(g_fs_devqual_dscr[0], g_wtmp));
            } else
            {
                _payload_source(&g_hs_devqual_dscr, _min(g_hs_devqual_dscr[0], g_wtmp));
            }
#else
            _payload_source(&g_fs_devqual_dscr, _min(g_fs_devqual_dscr[0], g_wtmp));
#endif
            break;

        case k_usb_dscr_typ_config:
            trace0(0, dev, 0, "RQ_GET_DESCRIPTOR: configuration");
            // make sure it is in the supported range
            if (rqstp->wValueLo > k_dev_max_configuration)
                return k_error;
            // tell the data pump where to find it and how much there is 
#ifdef k_20x_family
            trace1(0, dev, 0, "x_sie_conf:%02X",x_sie_conf);
            if ((x_sie_conf & kbm_sie_conf_hspeed))
            {
                _payload_source(&g_hs_cfg_dscr, _min(g_hs_cfg_dscr[2], g_wtmp));
            } else
            {
                _payload_source(&g_fs_cfg_dscr, _min(g_fs_cfg_dscr[2], g_wtmp));
            }
#else
            _payload_source(&g_cfg_dscr, _min(g_cfg_dscr[2], g_wtmp));
#endif
            break;

        case k_usb_dscr_typ_osconfig:
            trace0(0, dev, 0, "RQ_GET_DESCRIPTOR: other speed configuration");
            // make sure it is in the supported range
            if (rqstp->wValueLo > k_dev_max_configuration)
                return k_error;
            // tell the data pump where to find it and how much there is 
#ifdef k_20x_family
            trace1(0, dev, 0, "x_sie_conf:%02X",x_sie_conf);
            if ((x_sie_conf & kbm_sie_conf_hspeed))
            {
                _payload_source(&g_fs_oscfg_dscr, _min(g_fs_oscfg_dscr[2], g_wtmp));
            } else
            {
                _payload_source(&g_hs_oscfg_dscr, _min(g_hs_oscfg_dscr[2], g_wtmp));
            }
#else
            _payload_source(&g_cfg_osdscr, _min(g_oscfg_dscr[2], g_wtmp));
#endif
            break;

        case k_usb_dscr_typ_string:
            trace0(0, dev, 0, "RQ_GET_DESCRIPTOR: string");
            // make sure it is in the supported range
            if (rqstp->wValueLo >= k_dev_max_string)
                return k_error;

            // check which string descriptor is requested
            switch (rqstp->wValueLo)
            {
            case k_dev_idx_str_dscr_ser:
                if (x_ata_dev_has_ser)
                {
                    trace0(0, dev, 0, "sending custom serial num") ;
                    // build a serial descriptor and put it into the gp sram
                    _build_serial_dscr(&x_sram_buffer[0]) ;
                    // ship it
                    _payload_source(&x_sram_buffer[0], _min(x_sram_buffer[0], g_wtmp)) ;
                    break;
                } else
                {
                    trace0(0, dev, 0, "sending default serial num") ;
                    // send default.
                    _payload_source(g_str_dscr[rqstp->wValueLo], _min(*((uint8 *)g_str_dscr[rqstp->wValueLo]), g_wtmp));
                }
                break;
            case k_dev_idx_str_dscr_prd:
                trace0(0, dev, 0, "sending default product string descriptor") ;
                _payload_source(g_str_dscr[rqstp->wValueLo], _min(*((uint8 *)g_str_dscr[rqstp->wValueLo]), g_wtmp));
                break;
            case k_dev_idx_str_dscr_mfg:
                trace0(0, dev, 0, "sending default manufacturer string descriptor") ;
                _payload_source(g_str_dscr[rqstp->wValueLo], _min(*((uint8 *)g_str_dscr[rqstp->wValueLo]), g_wtmp));
                break;
            case k_dev_idx_str_dscr_lng:
                trace0(0, dev, 0, "sending default language string descriptor") ;
                _payload_source(g_str_dscr[rqstp->wValueLo], _min(*((uint8 *)g_str_dscr[rqstp->wValueLo]), g_wtmp));
                break;

            default:
                // tell the data pump where to find it and how much there is 
                trace1(0, dev, 0, "unknown value for string descriptor index:%d.  Sending default", rqstp->wValueLo) ;
                _payload_source(g_str_dscr[rqstp->wValueLo], _min(*((uint8 *)g_str_dscr[rqstp->wValueLo]), g_wtmp));
            }
            break;

        default: