1 /* $NetBSD: drmfb.h,v 1.3 2021/12/19 12:21:30 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 2014 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Taylor R. Campbell. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _DRM_DRMFB_H_ 33 #define _DRM_DRMFB_H_ 34 35 #include <sys/device_if.h> 36 37 #include <dev/wsfb/genfbvar.h> 38 39 struct drm_device; 40 struct drm_fb_helper; 41 struct drm_fb_helper_surface_sizes; 42 43 struct drmfb_attach_args; 44 struct drmfb_params; 45 struct drmfb_softc; 46 47 struct drmfb_params { 48 /* 49 * Framebuffer mmap. 50 */ 51 paddr_t (*dp_mmapfb)(struct drmfb_softc *, off_t, int); 52 53 /* 54 * Other mmap, e.g. for arbitrary PCI BARs. Available only to 55 * users with privileges for access to unmanaged memory. 56 */ 57 paddr_t (*dp_mmap)(struct drmfb_softc *, off_t, int); 58 59 /* 60 * Ioctl handler. Must handle: 61 * 62 * - WSDISPLAYIO_GET_BUSID 63 * - WSDISPLAYIO_GTYPE 64 * 65 * May add or override anything else. Return EPASSTHROUGH to 66 * defer. 67 */ 68 int (*dp_ioctl)(struct drmfb_softc *, unsigned long, 69 void *, int, struct lwp *); 70 /* XXX Kludge! */ 71 bool (*dp_is_vga_console)(struct drm_device *); 72 void (*dp_disable_vga)(struct drm_device *); 73 }; 74 75 struct drmfb_attach_args { 76 device_t da_dev; 77 struct drm_fb_helper *da_fb_helper; 78 const struct drm_fb_helper_surface_size *da_fb_sizes; 79 void *da_fb_vaddr; 80 uint32_t da_fb_linebytes; 81 const struct drmfb_params *da_params; 82 }; 83 84 /* Treat as opaque. Must be first member of device softc. */ 85 struct drmfb_softc { 86 struct genfb_softc sc_genfb; /* XXX Must be first. */ 87 struct drmfb_attach_args sc_da; 88 }; 89 90 int drmfb_attach(struct drmfb_softc *, const struct drmfb_attach_args *); 91 int drmfb_detach(struct drmfb_softc *, int); 92 bool drmfb_shutdown(struct drmfb_softc *, int); 93 94 #endif /* _DRM_DRMFB_H_ */ 95