Subversion Repositories usb_fpga_2_14

/*%

   ZTEX Firmware Kit for EZ-USB FX3 Microcontrollers

   Copyright (C) 2009-2017 ZTEX GmbH.

   http://www.ztex.de

   This Source Code Form is subject to the terms of the Mozilla Public

   License, v. 2.0. If a copy of the MPL was not distributed with this file,

   You can obtain one at http://mozilla.org/MPL/2.0/.

   Alternatively, the contents of this file may be used under the terms

   of the GNU General Public License Version 3, as described below:

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License version 3 as

   published by the Free Software Foundation.

   This program is distributed in the hope that it will be useful, but

   WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

   General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program; if not, see http://www.gnu.org/licenses/.

%*/

/*

    USB setup functions.

*/

void ztex_usb_start_usb() {

    CyU3PEpConfig_t epCfg;

    CyU3PDmaChannelConfig_t dmaCfg;

    CyU3PUSBSpeed_t usbSpeed = CyU3PUsbGetSpeed();

    usbSpeed = usbSpeed;                                // makes the compiler happy if no endpoints are defined

    ZTEX_REC( CyU3PPibInit(CyTrue, ztex_pib_clock2) ); // init PIB

    CyU3PMemSet ((uint8_t *)&epCfg, 0, sizeof (epCfg));

    epCfg.enable = CyTrue;

    epCfg.streams = 0;

    CyU3PMemSet ((uint8_t *)&dmaCfg, 0, sizeof (dmaCfg));

    dmaCfg.dmaMode = CY_U3P_DMA_MODE_BYTE;

#define DIR_IN 128

#define DIR_OUT 0

#define TYPE_ISO 1

#define TYPE_BULK 2

#define TYPE_INT 3

#define IS_SUPER_SPEED ( usbSpeed == CY_U3P_SUPER_SPEED )

#define INTERFACE(num,body) body    

#define EP(num,dir,type,epsize,burst,interval,body) \

    switch (usbSpeed) { \

        case CY_U3P_FULL_SPEED: \

            epCfg.pcktSize = 64; \

            break; \

        case CY_U3P_HIGH_SPEED: \

            epCfg.pcktSize = ((TYPE_##type==2) && (epsize>512)) ? 512 : epsize; \

            break; \

        default: \

            epCfg.pcktSize = epsize; \

            break; \

    } \

    epCfg.epType = TYPE_##type; \

    epCfg.burstLen = usbSpeed == CY_U3P_SUPER_SPEED ? burst : 1; \

    dmaCfg.size = ((epCfg.pcktSize*epCfg.burstLen + 0x0F) & ~0x0F); \

    epCfg.isoPkts = 1; \

    ZTEX_REC(CyU3PSetEpConfig(DIR_##dir | num, &epCfg)); \

    ZTEX_REC(CyU3PUsbFlushEp(num)); \

    ZTEX_REC(CyU3PUsbStall (num, CyFalse, CyTrue)); \

    ZTEX_REC(CyU3PUsbResetEp(num)); \

    dmaCfg.prodSckId = DIR_##dir ? 0xffff : CY_U3P_UIB_SOCKET_PROD_##num; \

    dmaCfg.consSckId = DIR_##dir ? CY_U3P_UIB_SOCKET_CONS_##num : 0xffff; \

    dmaCfg.notification = 0; \

    dmaCfg.cb = 0; \

    body

#define DMA(handle,dmatype,dmasize,dmacount,socket,body) \

    if (dmaCfg.prodSckId==0xffff) dmaCfg.prodSckId=socket; \

    if (dmaCfg.consSckId==0xffff) dmaCfg.consSckId=socket; \

    dmaCfg.size = dmasize*1024; \

    dmaCfg.count = dmacount; \

    body \

    ZTEX_REC(CyU3PDmaChannelCreate (&handle, dmatype, &dmaCfg));

#define CB(cbfunc,not) \

    dmaCfg.notification = not; \

    dmaCfg.cb = cbfunc;

    EP_SETUP_ALL

#undef EP

#undef DMA

#undef CB

#undef IS_SUPER_SPEED

}

void ztex_usb_stop_usb() {

    CyU3PEpConfig_t epCfg;

    CyU3PMemSet ((uint8_t *)&epCfg, 0, sizeof (epCfg));

// first destry DMA channels

#define EP(num,dir,type,epsize,burst,interval,body) \

    body \

    ZTEX_REC(CyU3PUsbFlushEp(num)); \

    ZTEX_REC(CyU3PSetEpConfig(num, &epCfg));

#define DMA(handle,dmatype,dmasize,dmacount,socket,body) \

    ZTEX_REC(CyU3PDmaChannelDestroy(&handle));

    EP_SETUP_ALL;

#undef EP

#undef DMA

    ZTEX_REC( CyU3PPibDeInit() );

}