/* GECKO3COM
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/* GECKO3COM
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*
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*
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* Copyright (C) 2008 by
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* Copyright (C) 2008 by
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* ___ ____ _ _
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* ___ ____ _ _
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* ( _`\ ( __)( ) ( )
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* ( _`\ ( __)( ) ( )
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* | (_) )| (_ | |_| | Berne University of Applied Sciences
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* | (_) )| (_ | |_| | Berne University of Applied Sciences
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* | _ <'| _) | _ | School of Engineering and
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* | _ <'| _) | _ | School of Engineering and
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* | (_) )| | | | | | Information Technology
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* | (_) )| | | | | | Information Technology
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* (____/'(_) (_) (_)
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* (____/'(_) (_) (_)
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*
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*
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*
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*
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* This program is free software: you can redistribute it and/or modify
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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* (at your option) any later version.
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*
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*
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* This program is distributed in the hope that it will be useful,
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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*/
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/*********************************************************************/
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/*********************************************************************/
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/** \file usb_tmc.c
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/** \file usb_tmc.c
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*********************************************************************
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*********************************************************************
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* \brief The USB Test and Measurement Class (TMC) functions.
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* \brief The USB Test and Measurement Class (TMC) functions.
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*
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*
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* \author Christoph Zimmermann bfh.ch
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* \author Christoph Zimmermann bfh.ch
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* \date 2009-02-04
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* \date 2009-02-04
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*
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*
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*/
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*/
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#include <stdint.h>
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#include <stdint.h>
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#include "fx2regs.h"
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#include "fx2regs.h"
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#include "isr.h"
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#include "isr.h"
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#include "usb_requests.h"
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#include "usb_requests.h"
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#include "usb_descriptors.h"
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#include "usb_descriptors.h"
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#include "usb_tmc.h"
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#include "usb_tmc.h"
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#include "debugprint.h"
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#include "debugprint.h"
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/* GECKO3COM specific includes */
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/* GECKO3COM specific includes */
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#include "gecko3com_common.h"
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#include "gecko3com_common.h"
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#include "gecko3com_interfaces.h"
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#include "gecko3com_interfaces.h"
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#include "gecko3com_gpif.h"
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#include "gecko3com_gpif.h"
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#include "fpga_load.h"
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#include "fpga_load.h"
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volatile static TMC_Status usb_tmc_status;
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volatile static TMC_Status usb_tmc_status;
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volatile TMC_State usb_tmc_state;
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volatile TMC_State usb_tmc_state;
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volatile idata TMC_Transfer_Info usb_tmc_transfer;
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volatile idata TMC_Transfer_Info usb_tmc_transfer;
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volatile idata IEEE488_status_registers ieee488_status;
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volatile idata IEEE488_status_registers ieee488_status;
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/** This constant contains the device capabilities according to the TMC specification, Ref.: Table 37 */
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/** This constant contains the device capabilities according to the TMC specification, Ref.: Table 37 */
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volatile const USB_TMC_Capabilities USB_TMC_CAPABILITIES = {
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volatile const USB_TMC_Capabilities USB_TMC_CAPABILITIES = {
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TMC_STATUS_SUCCESS,
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TMC_STATUS_SUCCESS,
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0,
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0,
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0x00, /* BCD version number of TMC specification, 1.00 */
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0x00, /* BCD version number of TMC specification, 1.00 */
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0x01,
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0x01,
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HAS_INDICATOR_PULSE,
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HAS_INDICATOR_PULSE,
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0,
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0,
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{0,0,0,0,0,0},
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{0,0,0,0,0,0},
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/* place here USB488 subclass capabilities */
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/* place here USB488 subclass capabilities */
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0x00, /* BCD version number of USB488 specification, 1.00 */
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0x00, /* BCD version number of USB488 specification, 1.00 */
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0x01,
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0x01,
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0,
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0,
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0,
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0,
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{0,0,0,0,0,0,0,0}
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{0,0,0,0,0,0,0,0}
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};
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};
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void init_usb_tmc(){
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void init_usb_tmc(){
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usb_tmc_transfer.bTag = 0;
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usb_tmc_transfer.bTag = 0;
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usb_tmc_transfer.transfer_size = 0;
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usb_tmc_transfer.transfer_size = 0;
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usb_tmc_transfer.new_transfer = 0;
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usb_tmc_transfer.new_transfer = 0;
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usb_tmc_transfer.nbytes_rxd = 0;
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usb_tmc_transfer.nbytes_rxd = 0;
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usb_tmc_transfer.nbytes_txd = 0;
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usb_tmc_transfer.nbytes_txd = 0;
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usb_tmc_status = TMC_STATUS_SUCCESS;
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usb_tmc_status = TMC_STATUS_SUCCESS;
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usb_tmc_state = TMC_STATE_IDLE;
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usb_tmc_state = TMC_STATE_IDLE;
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ieee488_status.EventStatusRegister = bmPOWER_ON;
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ieee488_status.EventStatusRegister = bmPOWER_ON;
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ieee488_status.EventStatusEnable = 0;
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ieee488_status.EventStatusEnable = 0;
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ieee488_status.StatusByteRegister = 0;
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ieee488_status.StatusByteRegister = 0;
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ieee488_status.ServiceRequestEnable = 0;
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ieee488_status.ServiceRequestEnable = 0;
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}
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}
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uint8_t IEEE488_status_query(idata IEEE488_status_registers *status){
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uint8_t IEEE488_status_query(idata IEEE488_status_registers *status){
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uint8_t local_status, local_enable;
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uint8_t local_status, local_enable;
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local_status = status->EventStatusRegister;
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local_status = status->EventStatusRegister;
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local_enable = status->EventStatusEnable;
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local_enable = status->EventStatusEnable;
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if(local_status & local_enable)
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if(local_status & local_enable)
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local_status |= 0x20; /* set the ESB bit */
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local_status |= 0x20; /* set the ESB bit */
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else
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else
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local_status &= !0xDF;
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local_status &= !0xDF;
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status->EventStatusRegister = local_status;
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status->EventStatusRegister = local_status;
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local_status = status->StatusByteRegister;
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local_status = status->StatusByteRegister;
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local_enable = status->ServiceRequestEnable;
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local_enable = status->ServiceRequestEnable;
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if((local_status &= 0xBF) & (local_enable & 0xBF)) {
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if((local_status &= 0xBF) & (local_enable & 0xBF)) {
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local_status |= 0x40; /* set the MSS bit */
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local_status |= 0x40; /* set the MSS bit */
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status->StatusByteRegister = local_status;
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status->StatusByteRegister = local_status;
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}
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}
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return local_status;
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return local_status;
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}
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}
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uint8_t usb_handle_tmc_packet (void){
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uint8_t usb_handle_tmc_packet (void){
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if ((bRequestType & bmRT_DIR_MASK) == bmRT_DIR_IN){
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if ((bRequestType & bmRT_DIR_MASK) == bmRT_DIR_IN){
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/*********************************
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/*********************************
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* handle the TMC IN requests
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* handle the TMC IN requests
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********************************/
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********************************/
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switch (bRequest){
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switch (bRequest){
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case INITIATE_ABORT_BULK_OUT:
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case INITIATE_ABORT_BULK_OUT:
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/* --------------------------------------------------------------------*/
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/* --------------------------------------------------------------------*/
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/* abort GECKO3COM specific stuff */
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/* abort GECKO3COM specific stuff */
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if( flLOCAL == GECKO3COM_REMOTE) {
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if( flLOCAL == GECKO3COM_REMOTE) {
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usb_tmc_status = TMC_STATUS_SUCCESS;
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usb_tmc_status = TMC_STATUS_SUCCESS;
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usb_tmc_state = TMC_STATE_IDLE;
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usb_tmc_state = TMC_STATE_IDLE;
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abort_gpif();
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abort_gpif();
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}
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}
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/* check if the active transfer has the requested bTag value */
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/* check if the active transfer has the requested bTag value */
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else if(usb_tmc_transfer.bTag == wValueL) {
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else if(usb_tmc_transfer.bTag == wValueL) {
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usb_tmc_status = TMC_STATUS_SUCCESS;
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usb_tmc_status = TMC_STATUS_SUCCESS;
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usb_tmc_state = TMC_STATE_IDLE;
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usb_tmc_state = TMC_STATE_IDLE;
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/* reset OUT FIFOs */
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/* reset OUT FIFOs */
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FIFORESET = bmNAKALL; SYNCDELAY;
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FIFORESET = bmNAKALL; SYNCDELAY;
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FIFORESET = bmNAKALL | USB_TMC_EP_OUT; SYNCDELAY;
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FIFORESET = bmNAKALL | USB_TMC_EP_OUT; SYNCDELAY;
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/* because we use quad buffering we have to flush all for buffers */
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/* because we use quad buffering we have to flush all for buffers */
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OUTPKTEND = bmSKIP | USB_TMC_EP_OUT; SYNCDELAY;
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OUTPKTEND = bmSKIP | USB_TMC_EP_OUT; SYNCDELAY;
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OUTPKTEND = bmSKIP | USB_TMC_EP_OUT; SYNCDELAY;
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OUTPKTEND = bmSKIP | USB_TMC_EP_OUT; SYNCDELAY;
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OUTPKTEND = bmSKIP | USB_TMC_EP_OUT; SYNCDELAY;
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OUTPKTEND = bmSKIP | USB_TMC_EP_OUT; SYNCDELAY;
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OUTPKTEND = bmSKIP | USB_TMC_EP_OUT; SYNCDELAY;
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OUTPKTEND = bmSKIP | USB_TMC_EP_OUT; SYNCDELAY;
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FIFORESET = 0; SYNCDELAY;
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FIFORESET = 0; SYNCDELAY;
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}
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}
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else {
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else {
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usb_tmc_status = TMC_STATUS_TRANSFER_NOT_IN_PROGRESS;
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usb_tmc_status = TMC_STATUS_TRANSFER_NOT_IN_PROGRESS;
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}
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}
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EP0BUF[0] = usb_tmc_status;
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EP0BUF[0] = usb_tmc_status;
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EP0BUF[1] = usb_tmc_transfer.bTag;
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EP0BUF[1] = usb_tmc_transfer.bTag;
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EP0BCH = 0;
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EP0BCH = 0;
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EP0BCL = 2;
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EP0BCL = 2;
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break;
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break;
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case CHECK_ABORT_BULK_OUT_STATUS:
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case CHECK_ABORT_BULK_OUT_STATUS:
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/* send number of transmitted bytes */
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/* send number of transmitted bytes */
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usb_tmc_status = TMC_STATUS_SUCCESS;
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usb_tmc_status = TMC_STATUS_SUCCESS;
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EP0BUF[0] = usb_tmc_status;
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EP0BUF[0] = usb_tmc_status;
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EP0BUF[1] = 0;
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EP0BUF[1] = 0;
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EP0BUF[2] = 0;
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EP0BUF[2] = 0;
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EP0BUF[3] = 0;
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EP0BUF[3] = 0;
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EP0BUF[4] = (usb_tmc_transfer.nbytes_rxd & 0x0000FF);
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EP0BUF[4] = (usb_tmc_transfer.nbytes_rxd & 0x0000FF);
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EP0BUF[5] = (usb_tmc_transfer.nbytes_rxd & 0x00FF00)>>8;
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EP0BUF[5] = (usb_tmc_transfer.nbytes_rxd & 0x00FF00)>>8;
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EP0BUF[6] = (usb_tmc_transfer.nbytes_rxd & 0xFF0000)>>16;
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EP0BUF[6] = (usb_tmc_transfer.nbytes_rxd & 0xFF0000)>>16;
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EP0BUF[7] = usb_tmc_transfer.nbytes_rxd >>24;
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EP0BUF[7] = usb_tmc_transfer.nbytes_rxd >>24;
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EP0BCH = 0;
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EP0BCH = 0;
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EP0BCL = 8;
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EP0BCL = 8;
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break;
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break;
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case INITIATE_ABORT_BULK_IN:
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case INITIATE_ABORT_BULK_IN:
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/* --------------------------------------------------------------------*/
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/* --------------------------------------------------------------------*/
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/* abort GECKO3COM specific stuff */
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/* abort GECKO3COM specific stuff */
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if( flLOCAL == GECKO3COM_REMOTE) {
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if( flLOCAL == GECKO3COM_REMOTE) {
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usb_tmc_status = TMC_STATUS_SUCCESS;
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usb_tmc_status = TMC_STATUS_SUCCESS;
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usb_tmc_state = TMC_STATE_IDLE;
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usb_tmc_state = TMC_STATE_IDLE;
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abort_gpif();
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abort_gpif();
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/* reset IN FIFOs */
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/* reset IN FIFOs */
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FIFORESET = bmNAKALL; SYNCDELAY;
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FIFORESET = bmNAKALL; SYNCDELAY;
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FIFORESET = bmNAKALL | USB_TMC_EP_IN; SYNCDELAY;
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FIFORESET = bmNAKALL | USB_TMC_EP_IN; SYNCDELAY;
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INPKTEND = bmSKIP | USB_TMC_EP_IN; SYNCDELAY;
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INPKTEND = bmSKIP | USB_TMC_EP_IN; SYNCDELAY;
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FIFORESET = 0; SYNCDELAY;
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FIFORESET = 0; SYNCDELAY;
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}
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}
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/* check if the active transfer has the requested bTag value */
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/* check if the active transfer has the requested bTag value */
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else if(usb_tmc_transfer.bTag == wValueL) {
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else if(usb_tmc_transfer.bTag == wValueL) {
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usb_tmc_status = TMC_STATUS_SUCCESS;
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usb_tmc_status = TMC_STATUS_SUCCESS;
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usb_tmc_state = TMC_STATE_IDLE;
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usb_tmc_state = TMC_STATE_IDLE;
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IEEE488_clear_mav();
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IEEE488_clear_mav();
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}
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}
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else {
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else {
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usb_tmc_status = TMC_STATUS_TRANSFER_NOT_IN_PROGRESS;
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usb_tmc_status = TMC_STATUS_TRANSFER_NOT_IN_PROGRESS;
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}
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}
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EP0BUF[0] = usb_tmc_status;
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EP0BUF[0] = usb_tmc_status;
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EP0BUF[1] = wValueL;
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EP0BUF[1] = wValueL;
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EP0BCH = 0;
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EP0BCH = 0;
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EP0BCL = 2;
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EP0BCL = 2;
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break;
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break;
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case CHECK_ABORT_BULK_IN_STATUS:
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case CHECK_ABORT_BULK_IN_STATUS:
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/* send number of transmitted bytes */
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/* send number of transmitted bytes */
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usb_tmc_status = TMC_STATUS_SUCCESS;
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usb_tmc_status = TMC_STATUS_SUCCESS;
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EP0BUF[0] = usb_tmc_status;
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EP0BUF[0] = usb_tmc_status;
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EP0BUF[1] = 0;
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EP0BUF[1] = 0;
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EP0BUF[2] = 0;
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EP0BUF[2] = 0;
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EP0BUF[3] = 0;
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EP0BUF[3] = 0;
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EP0BUF[4] = (usb_tmc_transfer.nbytes_txd & 0x0000FF);
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EP0BUF[4] = (usb_tmc_transfer.nbytes_txd & 0x0000FF);
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EP0BUF[5] = (usb_tmc_transfer.nbytes_txd & 0x00FF00)>>8;
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EP0BUF[5] = (usb_tmc_transfer.nbytes_txd & 0x00FF00)>>8;
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EP0BUF[6] = (usb_tmc_transfer.nbytes_txd & 0xFF0000)>>16;
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EP0BUF[6] = (usb_tmc_transfer.nbytes_txd & 0xFF0000)>>16;
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EP0BUF[7] = usb_tmc_transfer.nbytes_txd >>24;
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EP0BUF[7] = usb_tmc_transfer.nbytes_txd >>24;
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EP0BCH = 0;
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EP0BCH = 0;
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EP0BCL = 8;
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EP0BCL = 8;
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break;
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break;
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case INITIATE_CLEAR:
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case INITIATE_CLEAR:
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usb_tmc_status = TMC_STATUS_SUCCESS;
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usb_tmc_status = TMC_STATUS_SUCCESS;
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usb_tmc_state = TMC_STATE_IDLE;
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usb_tmc_state = TMC_STATE_IDLE;
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IEEE488_clear_mav();
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IEEE488_clear_mav();
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|
|
/* --------------------------------------------------------------------*/
|
/* --------------------------------------------------------------------*/
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/* abort GECKO3COM specific stuff */
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/* abort GECKO3COM specific stuff */
|
if( flLOCAL == GECKO3COM_REMOTE) {
|
if( flLOCAL == GECKO3COM_REMOTE) {
|
deactivate_gpif();
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deactivate_gpif();
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flLOCAL = GECKO3COM_LOCAL;
|
flLOCAL = GECKO3COM_LOCAL;
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|
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/* configure the fpga interface for configuration */
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/* configure the fpga interface for configuration */
|
init_fpga_interface();
|
init_fpga_interface();
|
}
|
}
|
|
|
/* --------------------------------------------------------------------*/
|
/* --------------------------------------------------------------------*/
|
|
|
|
|
/* reset FIFOs */
|
/* reset FIFOs */
|
FIFORESET = bmNAKALL; SYNCDELAY;
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FIFORESET = bmNAKALL; SYNCDELAY;
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FIFORESET = bmNAKALL | USB_TMC_EP_OUT; SYNCDELAY;
|
FIFORESET = bmNAKALL | USB_TMC_EP_OUT; SYNCDELAY;
|
FIFORESET = bmNAKALL | USB_TMC_EP_IN; SYNCDELAY;
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FIFORESET = bmNAKALL | USB_TMC_EP_IN; SYNCDELAY;
|
|
|
/* because we use quad buffering we have to flush all for buffers */
|
/* because we use quad buffering we have to flush all for buffers */
|
OUTPKTEND = bmSKIP | USB_TMC_EP_OUT; SYNCDELAY;
|
OUTPKTEND = bmSKIP | USB_TMC_EP_OUT; SYNCDELAY;
|
OUTPKTEND = bmSKIP | USB_TMC_EP_OUT; SYNCDELAY;
|
OUTPKTEND = bmSKIP | USB_TMC_EP_OUT; SYNCDELAY;
|
OUTPKTEND = bmSKIP | USB_TMC_EP_OUT; SYNCDELAY;
|
OUTPKTEND = bmSKIP | USB_TMC_EP_OUT; SYNCDELAY;
|
OUTPKTEND = bmSKIP | USB_TMC_EP_OUT; SYNCDELAY;
|
OUTPKTEND = bmSKIP | USB_TMC_EP_OUT; SYNCDELAY;
|
|
|
FIFORESET = 0; SYNCDELAY;
|
FIFORESET = 0; SYNCDELAY;
|
|
|
EP0BUF[0] = usb_tmc_status;
|
EP0BUF[0] = usb_tmc_status;
|
EP0BCH = 0;
|
EP0BCH = 0;
|
EP0BCL = 1;
|
EP0BCL = 1;
|
|
|
break;
|
break;
|
|
|
case CHECK_CLEAR_STATUS:
|
case CHECK_CLEAR_STATUS:
|
usb_tmc_status = TMC_STATUS_SUCCESS;
|
usb_tmc_status = TMC_STATUS_SUCCESS;
|
EP0BUF[0] = usb_tmc_status;
|
EP0BUF[0] = usb_tmc_status;
|
EP0BUF[1] = 0; /* no queued data in bulk-in buffer */
|
EP0BUF[1] = 0; /* no queued data in bulk-in buffer */
|
|
|
EP0BCH = 0;
|
EP0BCH = 0;
|
EP0BCL = 2;
|
EP0BCL = 2;
|
break;
|
break;
|
|
|
case GET_CAPABILITIES:
|
case GET_CAPABILITIES:
|
usb_tmc_status = TMC_STATUS_SUCCESS;
|
usb_tmc_status = TMC_STATUS_SUCCESS;
|
{
|
{
|
uint8_t i = 0;
|
uint8_t i = 0;
|
code char *local_capabilities = &((code char)USB_TMC_CAPABILITIES);
|
//code char *local_capabilities = &((code char)USB_TMC_CAPABILITIES);
|
for(i;i<0x18;i++){
|
for(i;i<0x18;i++){
|
//EP0BUF[i] = (&(uintptr_t)USB_TMC_CAPABILITIES)[i];
|
//EP0BUF[i] = (&(code char)USB_TMC_CAPABILITIES)[i];
|
EP0BUF[i] = local_capabilities[i];
|
//EP0BUF[i] = local_capabilities[i];
|
|
EP0BUF[i] = (&(code unsigned char)USB_TMC_CAPABILITIES)[i];
|
}
|
}
|
EP0BCH = 0;
|
EP0BCH = 0;
|
EP0BCL = 0x18;
|
EP0BCL = 0x18;
|
}
|
}
|
break;
|
break;
|
|
|
case INDICATOR_PULSE:
|
case INDICATOR_PULSE:
|
/* GECKO3COM spcific command to set external LED */
|
/* GECKO3COM spcific command to set external LED */
|
set_led_ext(ORANGE);
|
set_led_ext(ORANGE);
|
usb_tmc_status = TMC_STATUS_SUCCESS;
|
usb_tmc_status = TMC_STATUS_SUCCESS;
|
EP0BUF[0] = usb_tmc_status;
|
EP0BUF[0] = usb_tmc_status;
|
EP0BCH = 0;
|
EP0BCH = 0;
|
EP0BCL = 1;
|
EP0BCL = 1;
|
break;
|
break;
|
|
|
/* USB488 subclass commands */
|
/* USB488 subclass commands */
|
case READ_STATUS_BYTE:
|
case READ_STATUS_BYTE:
|
usb_tmc_status = TMC_STATUS_SUCCESS;
|
usb_tmc_status = TMC_STATUS_SUCCESS;
|
EP0BUF[0] = usb_tmc_status;
|
EP0BUF[0] = usb_tmc_status;
|
EP0BUF[1] = wValueL;
|
EP0BUF[1] = wValueL;
|
EP0BUF[2] = IEEE488_status_query(&ieee488_status);
|
EP0BUF[2] = IEEE488_status_query(&ieee488_status);
|
EP0BCH = 0;
|
EP0BCH = 0;
|
EP0BCL = 3;
|
EP0BCL = 3;
|
break;
|
break;
|
|
|
case REN_CONTROL:
|
case REN_CONTROL:
|
/* optional command, not implemented */
|
/* optional command, not implemented */
|
break;
|
break;
|
|
|
case GO_TO_LOCAL:
|
case GO_TO_LOCAL:
|
/* optional command, not implemented */
|
/* optional command, not implemented */
|
return 0;
|
return 0;
|
break;
|
break;
|
|
|
case LOCAL_LOCKOUT:
|
case LOCAL_LOCKOUT:
|
/* optional command, not implemented */
|
/* optional command, not implemented */
|
return 0;
|
return 0;
|
break;
|
break;
|
|
|
default:
|
default:
|
return 0;
|
return 0;
|
}
|
}
|
}
|
}
|
|
|
else if ((bRequestType & bmRT_DIR_MASK) == bmRT_DIR_OUT){
|
else if ((bRequestType & bmRT_DIR_MASK) == bmRT_DIR_OUT){
|
|
|
/***********************************
|
/***********************************
|
* handle the TMC OUT requests
|
* handle the TMC OUT requests
|
**********************************/
|
**********************************/
|
|
|
switch (bRequest){
|
switch (bRequest){
|
|
|
default:
|
default:
|
usb_tmc_status = TMC_STATUS_FAILED;
|
usb_tmc_status = TMC_STATUS_FAILED;
|
return 0;
|
return 0;
|
}
|
}
|
}
|
}
|
else
|
else
|
return 0; /* invalid bRequestType */
|
return 0; /* invalid bRequestType */
|
|
|
return 1;
|
return 1;
|
}
|
}
|
|
|
