Subversion Repositories usb_fpga_1_2

/*!

   ZTEX Firmware Kit for EZ-USB Microcontrollers

   Copyright (C) 2008-2009 ZTEX e.K.

   http://www.ztex.de

   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/.

!*/

/*

   Puts everything in the right order together.

*/

#ifndef[ZTEX_H]

#define[ZTEX_H]

/* *********************************************************************

   ***** include the basic functions ***********************************

   ********************************************************************* */

#include[ztex-utils.h]

/* *********************************************************************

   ***** Flash memory support ******************************************

   ********************************************************************* */

#ifeq[FLASH_ENABLED][1]

#ifeq[PRODUCT_IS][UFM-1_1]

#include[ztex-flash1.h]

#elifeq[PRODUCT_IS][UFM-1_2]

#include[ztex-flash1.h]

#else

#warning[FLASH option is not supported by this product]

#define[FLASH_ENABLED][0]

#endif

#endif

/* *********************************************************************

   ***** EEPROM support and some I2c helper functions ******************

   ********************************************************************* */

#ifneq[EEPROM_DISABLED][1]

#include[ztex-eeprom.h]

#endif

/* *********************************************************************

   ***** FPGA configuration support ************************************

   ********************************************************************* */

#ifeq[PRODUCT_IS][UFM-1_0]

#include[ztex-fpga.h]

#elifeq[PRODUCT_IS][UFM-1_1]

#include[ztex-fpga.h]

#elifeq[PRODUCT_IS][UFM-1_2]

#include[ztex-fpga.h]

#endif

/* *********************************************************************

   ***** define the descriptors and the interrupt routines *************

   ********************************************************************* */

#include[ztex-descriptors.h]

#include[ztex-isr.h]

/* *********************************************************************

   ***** init_USB ******************************************************

   ********************************************************************* */

#define[EPXCFG(][);][    EP$0CFG = 

#ifeq[EP$0_DIR][IN]

        bmBIT7 | bmBIT6

#elifeq[EP$0_DIR][OUT]

        bmBIT7

#else

#endif

#ifeq[EP$0_TYPE][BULK]

        | bmBIT5

#elifeq[EP$0_TYPE][ISO]

        | bmBIT4

#elifeq[EP$0_TYPE][INT]

        | bmBIT5 | bmBIT4

#endif

#ifeq[EP$0_SIZE][1024]

        | bmBIT3

#endif

#ifeq[EP$0_BUFFERS][2]

        | bmBIT1

#elifeq[EP$0_BUFFERS][3]

        | bmBIT1 | bmBIT0

#endif  

        ;

        SYNCDELAY;

]

#define[EP1XCFG(][);][#ifeq[EP$0_TYPE][BULK]

        EP$0CFG = bmBIT7 | bmBIT5;

#elifeq[EP$0_TYPE][ISO]

        EP$0CFG = bmBIT7 | bmBIT4;

#elifeq[EP$0_TYPE][INT]

        EP$0CFG = bmBIT7 | bmBIT5 | bmBIT4;

#else   

        EP$0CFG = 0;

#endif

        SYNCDELAY;

]

void init_USB ()

{

    CPUCS = bmBIT4 | bmBIT1;

    CKCON &= ~7;

    IOA1 = 1;

    OEA |= bmBIT1;

    EA = 0;

    ENABLE_AVUSB;

    INIT_INTERRUPT_VECTOR(INTVEC_SUDAV, SUDAV_ISR);

    INIT_INTERRUPT_VECTOR(INTVEC_SOF, SOF_ISR);

    INIT_INTERRUPT_VECTOR(INTVEC_SUTOK, SUTOK_ISR);

    INIT_INTERRUPT_VECTOR(INTVEC_SUSPEND, SUSP_ISR);

    INIT_INTERRUPT_VECTOR(INTVEC_USBRESET, URES_ISR);

    INIT_INTERRUPT_VECTOR(INTVEC_HISPEED, HSGRANT_ISR);

    INIT_INTERRUPT_VECTOR(INTVEC_EP0ACK, EP0ACK_ISR);

    INIT_INTERRUPT_VECTOR(INTVEC_EP0IN, EP0IN_ISR);

    INIT_INTERRUPT_VECTOR(INTVEC_EP0OUT, EP0OUT_ISR);

    INIT_INTERRUPT_VECTOR(INTVEC_EP1IN, EP1IN_ISR);

    INIT_INTERRUPT_VECTOR(INTVEC_EP1OUT, EP1OUT_ISR);

    INIT_INTERRUPT_VECTOR(INTVEC_EP2, EP2_ISR);

    INIT_INTERRUPT_VECTOR(INTVEC_EP4, EP4_ISR);

    INIT_INTERRUPT_VECTOR(INTVEC_EP6, EP6_ISR);

    INIT_INTERRUPT_VECTOR(INTVEC_EP8, EP8_ISR);

    EXIF &= ~bmBIT4;

    USBIRQ = 0x7f;

    USBIE |= 0x7f;

    EPIRQ = 0xff;

    EPIE = 0xff;

    EUSB = 1;

    EA = 1;

    USBCS |= 0x08;

    USBCS |= bmBIT7 | bmBIT1;

    wait(500);

    USBCS &= ~0x08;

    wait(500);

    EP1XCFG(1IN);

    EP1XCFG(1OUT);

    EPXCFG(2);

    EPXCFG(4);

    EPXCFG(6);

    EPXCFG(8);

}

#endif   /* ZTEX_H */