Annotation of sys/dev/pci/vga_pcivar.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: vga_pcivar.h,v 1.7 2006/11/27 18:04:28 gwk Exp $ */
! 2: /* $NetBSD: vga_pcivar.h,v 1.1 1998/03/22 15:16:19 drochner Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1995, 1996 Carnegie-Mellon University.
! 6: * All rights reserved.
! 7: *
! 8: * Author: Chris G. Demetriou
! 9: *
! 10: * Permission to use, copy, modify and distribute this software and
! 11: * its documentation is hereby granted, provided that both the copyright
! 12: * notice and this permission notice appear in all copies of the
! 13: * software, derivative works or modified versions, and any portions
! 14: * thereof, and that both notices appear in supporting documentation.
! 15: *
! 16: * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
! 17: * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
! 18: * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
! 19: *
! 20: * Carnegie Mellon requests users of this software to return to
! 21: *
! 22: * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
! 23: * School of Computer Science
! 24: * Carnegie Mellon University
! 25: * Pittsburgh PA 15213-3890
! 26: *
! 27: * any improvements or extensions that they make and grant Carnegie the
! 28: * rights to redistribute these changes.
! 29: */
! 30:
! 31: #ifndef _PCI_VGA_PCIVAR_H_
! 32: #define _PCI_VGA_PCIVAR_H_
! 33:
! 34: #define DEVICE_IS_VGA_PCI(class, id) \
! 35: (((PCI_CLASS(class) == PCI_CLASS_DISPLAY && \
! 36: PCI_SUBCLASS(class) == PCI_SUBCLASS_DISPLAY_VGA) || \
! 37: (PCI_CLASS(class) == PCI_CLASS_PREHISTORIC && \
! 38: PCI_SUBCLASS(class) == PCI_SUBCLASS_PREHISTORIC_VGA)) ? 1 : 0)
! 39:
! 40: enum agp_acquire_state {
! 41: AGP_ACQUIRE_FREE,
! 42: AGP_ACQUIRE_USER,
! 43: AGP_ACQUIRE_KERNEL
! 44: };
! 45:
! 46: /*
! 47: * Data structure to describe an AGP memory allocation.
! 48: */
! 49: TAILQ_HEAD(agp_memory_list, agp_memory);
! 50: struct agp_memory {
! 51: TAILQ_ENTRY(agp_memory) am_link; /* wiring for the tailq */
! 52: int am_id; /* unique id for block */
! 53: vsize_t am_size; /* number of bytes allocated */
! 54: int am_type; /* chipset specific type */
! 55: off_t am_offset; /* page offset if bound */
! 56: int am_is_bound; /* non-zero if bound */
! 57: bus_addr_t am_physical;
! 58: caddr_t am_virtual;
! 59: bus_dmamap_t am_dmamap;
! 60: int am_nseg;
! 61: bus_dma_segment_t *am_dmaseg;
! 62: };
! 63:
! 64: struct vga_pci_softc {
! 65: struct device sc_dev;
! 66:
! 67: #if 0
! 68: struct vga_config *sc_vc; /* VGA configuration */
! 69: #endif
! 70: #ifdef VESAFB
! 71: int sc_width;
! 72: int sc_height;
! 73: int sc_depth;
! 74: int sc_linebytes;
! 75: u_int32_t sc_base;
! 76: int sc_mode; /* WSDISPLAY_MODE_EMUL or _DUMBFB */
! 77: int sc_textmode; /* original VESA text mode */
! 78: int sc_gfxmode; /* VESA graphics mode */
! 79: u_char sc_cmap_red[256]; /* saved color map */
! 80: u_char sc_cmap_green[256];
! 81: u_char sc_cmap_blue[256];
! 82:
! 83: #endif
! 84: #ifdef PCIAGP
! 85: /* agp stuff */
! 86: bus_space_tag_t sc_bt, sc_memt;
! 87: bus_space_handle_t sc_bh;
! 88: bus_addr_t sc_apaddr;
! 89: bus_size_t sc_apsize;
! 90: bus_dma_tag_t sc_dmat;
! 91: struct lock sc_lock; /* lock for access to GATT */
! 92: pcitag_t sc_pcitag; /* PCI tag, in case we need it. */
! 93: pcireg_t sc_id;
! 94: pci_chipset_tag_t sc_pc;
! 95:
! 96: struct agp_methods *sc_methods;
! 97: void *sc_chipc; /* chipset-dependent state */
! 98:
! 99: int sc_opened;
! 100: int sc_capoff;
! 101: int sc_apflags;
! 102: int sc_nextid; /* next memory block id */
! 103:
! 104: u_int32_t sc_maxmem; /* allocation upper bound */
! 105: u_int32_t sc_allocated; /* amount allocated */
! 106: enum agp_acquire_state sc_state;
! 107: struct agp_memory_list sc_memory; /* list of allocated memory */
! 108: #endif
! 109: };
! 110:
! 111: #ifdef PCIAGP
! 112: struct agp_product {
! 113: int ap_vendor;
! 114: int ap_product;
! 115: int (*ap_attach)(struct vga_pci_softc *,
! 116: struct pci_attach_args *, struct pci_attach_args *);
! 117: };
! 118: /* MD-defined */
! 119: extern const struct agp_product agp_products[];
! 120:
! 121: void agp_attach(struct device *, struct device *, void *);
! 122: paddr_t agp_mmap(void *, off_t, int);
! 123: int agp_ioctl(void *, u_long, caddr_t, int, struct proc *);
! 124: #endif /* PCIAGP */
! 125:
! 126: int vga_pci_cnattach(bus_space_tag_t, bus_space_tag_t,
! 127: pci_chipset_tag_t, int, int, int);
! 128:
! 129: #ifdef VESAFB
! 130: int vesafb_find_mode(struct vga_pci_softc *, int, int, int);
! 131: void vesafb_set_mode(struct vga_pci_softc *, int);
! 132: int vesafb_get_mode(struct vga_pci_softc *);
! 133: int vesafb_get_supported_depth(struct vga_pci_softc *);
! 134: #endif
! 135:
! 136: #endif /* _PCI_VGA_PCIVAR_H_ */
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