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/* NVTV backend (header) -- Dirk Thierbach <dthierbach@gmx.de>
*
* This file is part of nvtv, a tool for tv-output on NVidia cards.
*
* nvtv 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 2 of the License, or
* (at your option) any later version.
*
* nvtv 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*
* $Id: backend.h,v 1.2 2003/02/05 00:14:03 miguelfreitas Exp $
*
* Contents:
*
* Common header for all backends
*/
#ifndef _BACKEND_H
#define _BACKEND_H
#include "debug.h"
#include "tv_chip.h"
#ifdef DEBUG_PROBE
#include "tv_common.h"
#endif
#include "local.h" /* for Bool, after xfree.h */
/* WARNING! The first entry of the two following data structures MUST be
the 'next' field, and the second entry MUST be a string. If they are not,
the pipe routines will crash. Other pointers besides those two are
transfered through the pipe, but should be ignored, as there value is
invalid. */
/* List of chips accessible on one card. Most of the time, there will
be only one tv chip, though in theory one could use two on dual-head
cards. Other chips can be stored here as well. We duplicate the
information in I2Chain and I2CDev to make the frontend independent
of the back end.
*/
typedef struct chip_info {
struct chip_info *next; /* must be 1st entry! */
char *name; /* must be 2nd entry! (name including version and I2C addr) */
TVChip chip; /* chip type */
int bus, addr; /* I2C bus and address */
void *private; /* identify device, backend private */
} ChipInfo, *ChipPtr;
/* List of all NVidia cards available */
typedef struct card_info {
struct card_info *next; /* must be 1st entry! */
char *name; /* must be 2nd entry! (name including bus addr) */
char *dev; /* name of device for mmap (not via pipe) */
char *arch; /* architecture (not via pipe) */
CardType type;
unsigned long reg_base;
unsigned long pio_base;
int addr_bus, addr_slot, addr_func;
int pci_id;
ChipPtr chips;
} CardInfo, *CardPtr;
#define BACK_SERVICE_CURSOR (1 << 0)
#define BACK_SERVICE_VIDEO (1 << 1)
#define BACK_SERVICE_VIEW_CURSOR (1 << 2)
#define BACK_SERVICE_VIEW_MAIN (1 << 3)
typedef struct {
void (*openCard) (CardPtr card);
void (*closeCard) (void);
#ifdef DEBUG_PROBE
void (*probeSystem) (CardPtr card_list);
#endif
} BackAccessRec, *BackAccessPtr;
typedef struct {
void (*openCard) (CardPtr card);
void (*closeCard) (void);
void (*probeChips) (void);
#ifdef DEBUG_PROBE
void (*probeCard) (void);
I2CChainPtr (*probeBus) (void);
#endif
void (*setHeads) (int main, int tv, int video);
void (*getHeads) (int *main, int *tv, int *video, int *max);
void (*getHeadDev) (int head, int *devFlags);
void (*setChip) (ChipPtr chip, Bool init);
void (*setSettings) (TVSettings *set);
void (*getSettings) (TVSettings *set);
void (*setMode) (TVRegs *r);
void (*getMode) (TVRegs *r);
void (*setModeSettings) (TVRegs *r, TVSettings *set);
void (*setTestImage) (TVEncoderRegs *tv, TVSettings *set);
long (*getStatus) (int index);
TVConnect (*getConnection) (void);
Bool (*findBySize) (TVSystem system, int xres, int yres, char *size,
TVMode *mode);
Bool (*findByOverscan) (TVSystem system, int xres, int yres,
double hoc, double voc, TVMode *mode);
void (*initSharedView) (int *view_x, int *view_y);
Bool (*getTwinView) (int *view_x, int *view_y);
Bool (*adjustViewport) (int flags, int *view_x, int *view_y);
Bool (*serviceViewportCursor) (int flags, int cursor_x, int cursor_y,
int *view_x, int *view_y);
} BackCardRec, *BackCardPtr;
/* The backend(s) use static information, so there can only be one
backend active: */
extern BackAccessPtr back_access;
extern BackCardPtr back_card;
#endif /* _BACKEND_H */
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