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/* $OpenBSD: vga_pcivar.h,v 1.6 2006/03/16 21:32:34 matthieu Exp $ */
/* $NetBSD: vga_pcivar.h,v 1.1 1998/03/22 15:16:19 drochner Exp $ */
/*
* Copyright (c) 1995, 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#ifndef _PCI_VGA_PCIVAR_H_
#define _PCI_VGA_PCIVAR_H_
#define DEVICE_IS_VGA_PCI(class, id) \
(((PCI_CLASS(class) == PCI_CLASS_DISPLAY && \
PCI_SUBCLASS(class) == PCI_SUBCLASS_DISPLAY_VGA) || \
(PCI_CLASS(class) == PCI_CLASS_PREHISTORIC && \
PCI_SUBCLASS(class) == PCI_SUBCLASS_PREHISTORIC_VGA)) ? 1 : 0)
enum agp_acquire_state {
AGP_ACQUIRE_FREE,
AGP_ACQUIRE_USER,
AGP_ACQUIRE_KERNEL
};
/*
* Data structure to describe an AGP memory allocation.
*/
TAILQ_HEAD(agp_memory_list, agp_memory);
struct agp_memory {
TAILQ_ENTRY(agp_memory) am_link; /* wiring for the tailq */
int am_id; /* unique id for block */
vsize_t am_size; /* number of bytes allocated */
int am_type; /* chipset specific type */
off_t am_offset; /* page offset if bound */
int am_is_bound; /* non-zero if bound */
bus_addr_t am_physical;
caddr_t am_virtual;
bus_dmamap_t am_dmamap;
int am_nseg;
bus_dma_segment_t *am_dmaseg;
};
struct vga_pci_softc {
struct device sc_dev;
#if 0
struct vga_config *sc_vc; /* VGA configuration */
#endif
#ifdef PCIAGP
/* agp stuff */
bus_space_tag_t sc_bt, sc_memt;
bus_space_handle_t sc_bh;
bus_addr_t sc_apaddr;
bus_size_t sc_apsize;
bus_dma_tag_t sc_dmat;
struct lock sc_lock; /* lock for access to GATT */
pcitag_t sc_pcitag; /* PCI tag, in case we need it. */
pcireg_t sc_id;
pci_chipset_tag_t sc_pc;
struct agp_methods *sc_methods;
void *sc_chipc; /* chipset-dependent state */
int sc_opened;
int sc_capoff;
int sc_apflags;
int sc_nextid; /* next memory block id */
u_int32_t sc_maxmem; /* allocation upper bound */
u_int32_t sc_allocated; /* amount allocated */
enum agp_acquire_state sc_state;
struct agp_memory_list sc_memory; /* list of allocated memory */
#endif
};
#ifdef PCIAGP
struct agp_product {
int ap_vendor;
int ap_product;
int (*ap_attach)(struct vga_pci_softc *,
struct pci_attach_args *, struct pci_attach_args *);
};
/* MD-defined */
extern const struct agp_product agp_products[];
void agp_attach(struct device *, struct device *, void *);
paddr_t agp_mmap(void *, off_t, int);
int agp_ioctl(void *, u_long, caddr_t, int, struct proc *);
#endif /* PCIAGP */
int vga_pci_cnattach(bus_space_tag_t, bus_space_tag_t,
pci_chipset_tag_t, int, int, int);
#endif /* _PCI_VGA_PCIVAR_H_ */
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