1 /* $NetBSD: sunxi_drm.h,v 1.3 2021/12/19 12:28:20 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 2019 Jared D. McNeill <jmcneill@invisible.ca> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _ARM_SUNXI_DRM_H 30 #define _ARM_SUNXI_DRM_H 31 32 #include <sys/queue.h> 33 #include <sys/workqueue.h> 34 35 #include <drm/drm_fb_helper.h> 36 #include <drm/drm_gem_cma_helper.h> 37 38 #define DRIVER_AUTHOR "Jared McNeill" 39 40 #define DRIVER_NAME "sunxi" 41 #define DRIVER_DESC "Allwinner Display Engine" 42 #define DRIVER_DATE "20190123" 43 44 #define DRIVER_MAJOR 1 45 #define DRIVER_MINOR 0 46 #define DRIVER_PATCHLEVEL 0 47 48 struct sunxi_framebuffer; 49 50 #define SUNXI_DRM_MAX_CRTC 2 51 52 struct sunxi_drm_vblank { 53 void *priv; 54 void (*enable_vblank)(void *); 55 void (*disable_vblank)(void *); 56 uint32_t (*get_vblank_counter)(void *); 57 }; 58 59 struct sunxi_drm_softc { 60 device_t sc_dev; 61 struct drm_device *sc_ddev; 62 63 bus_space_tag_t sc_bst; 64 bus_dma_tag_t sc_dmat; 65 66 int sc_phandle; 67 68 struct lwp *sc_task_thread; 69 SIMPLEQ_HEAD(, sunxi_drm_task) sc_tasks; 70 struct workqueue *sc_task_wq; 71 72 bool sc_dev_registered; 73 74 struct sunxi_drm_vblank sc_vbl[SUNXI_DRM_MAX_CRTC]; 75 }; 76 77 struct sunxi_drm_framebuffer { 78 struct drm_framebuffer base; 79 struct drm_gem_cma_object *obj; 80 }; 81 82 struct sunxi_drm_endpoint { 83 int phandle; 84 struct fdt_endpoint *ep; 85 struct drm_device *ddev; 86 TAILQ_ENTRY(sunxi_drm_endpoint) entries; 87 }; 88 89 struct sunxi_drm_fbdev { 90 struct drm_fb_helper helper; 91 }; 92 93 struct sunxi_drmfb_attach_args { 94 struct drm_device *sfa_drm_dev; 95 struct drm_fb_helper *sfa_fb_helper; 96 struct drm_fb_helper_surface_size sfa_fb_sizes; 97 bus_space_tag_t sfa_fb_bst; 98 bus_dma_tag_t sfa_fb_dmat; 99 uint32_t sfa_fb_linebytes; 100 }; 101 102 struct sunxi_drm_task { 103 union { 104 SIMPLEQ_ENTRY(sunxi_drm_task) queue; 105 struct work work; 106 } sdt_u; 107 void (*sdt_fn)(struct sunxi_drm_task *); 108 }; 109 110 #define sunxi_drm_private(ddev) (ddev)->dev_private 111 #define to_sunxi_drm_framebuffer(x) container_of(x, struct sunxi_drm_framebuffer, base) 112 113 int sunxi_drm_register_endpoint(int, struct fdt_endpoint *); 114 struct drm_device *sunxi_drm_endpoint_device(struct fdt_endpoint *); 115 116 void sunxi_task_init(struct sunxi_drm_task *, 117 void (*)(struct sunxi_drm_task *)); 118 void sunxi_task_schedule(device_t, struct sunxi_drm_task *); 119 120 #endif /* _ARM_SUNXI_DRM_H */ 121