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/* -*- c++ -*- */
/*
* Copyright 2003 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef _ISR_H_
#define _ISR_H_
/*
* ----------------------------------------------------------------
* routines for managing interrupt services routines
* ----------------------------------------------------------------
*/
/*
* The FX2 has three discrete sets of interrupt vectors.
* The first set is the standard 8051 vector (13 8-byte entries).
* The second set is USB interrupt autovector (32 4-byte entries).
* The third set is the FIFO/GPIF autovector (14 4-byte entries).
*
* Since all the code we're running in the FX2 is ram based, we
* forego the typical "initialize the interrupt vectors at link time"
* strategy, in favor of calls at run time that install the correct
* pointers to functions.
*/
/*
* Standard Vector numbers
*/
#define SV_INT_0 0x03
#define SV_TIMER_0 0x0b
#define SV_INT_1 0x13
#define SV_TIMER_1 0x1b
#define SV_SERIAL_0 0x23
#define SV_TIMER_2 0x2b
#define SV_RESUME 0x33
#define SV_SERIAL_1 0x3b
#define SV_INT_2 0x43 // (INT_2) points at USB autovector
#define SV_I2C 0x4b
#define SV_INT_4 0x53 // (INT_4) points at FIFO/GPIF autovector
#define SV_INT_5 0x5b
#define SV_INT_6 0x63
#define SV_MIN SV_INT_0
#define SV_MAX SV_INT_6
/*
* USB Auto Vector numbers
*/
#define UV_SUDAV 0x00
#define UV_SOF 0x04
#define UV_SUTOK 0x08
#define UV_SUSPEND 0x0c
#define UV_USBRESET 0x10
#define UV_HIGHSPEED 0x14
#define UV_EP0ACK 0x18
#define UV_SPARE_1C 0x1c
#define UV_EP0IN 0x20
#define UV_EP0OUT 0x24
#define UV_EP1IN 0x28
#define UV_EP1OUT 0x2c
#define UV_EP2 0x30
#define UV_EP4 0x34
#define UV_EP6 0x38
#define UV_EP8 0x3c
#define UV_IBN 0x40
#define UV_SPARE_44 0x44
#define UV_EP0PINGNAK 0x48
#define UV_EP1PINGNAK 0x4c
#define UV_EP2PINGNAK 0x50
#define UV_EP4PINGNAK 0x54
#define UV_EP6PINGNAK 0x58
#define UV_EP8PINGNAK 0x5c
#define UV_ERRLIMIT 0x60
#define UV_SPARE_64 0x64
#define UV_SPARE_68 0x68
#define UV_SPARE_6C 0x6c
#define UV_EP2ISOERR 0x70
#define UV_EP4ISOERR 0x74
#define UV_EP6ISOERR 0x78
#define UV_EP8ISOERR 0x7c
#define UV_MIN UV_SUDAV
#define UV_MAX UV_EP8ISOERR
/*
* FIFO/GPIF Auto Vector numbers
*/
#define FGV_EP2PF 0x00
#define FGV_EP4PF 0x04
#define FGV_EP6PF 0x08
#define FGV_EP8PF 0x0c
#define FGV_EP2EF 0x10
#define FGV_EP4EF 0x14
#define FGV_EP6EF 0x18
#define FGV_EP8EF 0x1c
#define FGV_EP2FF 0x20
#define FGV_EP4FF 0x24
#define FGV_EP6FF 0x28
#define FGV_EP8FF 0x2c
#define FGV_GPIFDONE 0x30
#define FGV_GPIFWF 0x34
#define FGV_MIN FGV_EP2PF
#define FGV_MAX FGV_GPIFWF
/*
* Hook standard interrupt vector.
*
* vector_number is from the SV_<foo> list above.
* addr is the address of the interrupt service routine.
*/
void hook_sv (unsigned char vector_number, unsigned short addr);
/*
* Hook usb interrupt vector.
*
* vector_number is from the UV_<foo> list above.
* addr is the address of the interrupt service routine.
*/
void hook_uv (unsigned char vector_number, unsigned short addr);
/*
* Hook fifo/gpif interrupt vector.
*
* vector_number is from the FGV_<foo> list above.
* addr is the address of the interrupt service routine.
*/
void hook_fgv (unsigned char vector_number, unsigned short addr);
/*
* One time call to enable autovectoring for both USB and FIFO/GPIF
*/
void setup_autovectors (void);
/*
* Must be called in each usb interrupt handler
*/
#define clear_usb_irq() \
EXIF &= ~bmEXIF_USBINT; \
INT2CLR = 0
/*
* Must be calledin each fifo/gpif interrupt handler
*/
#define clear_fifo_gpif_irq() \
EXIF &= ~bmEXIF_IE4; \
INT4CLR = 0
#endif /* _ISR_H_ */
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