1 /* $NetBSD: rk_drm.h,v 1.2 2021/12/19 12:28:27 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_RK_DRM_H 30 #define _ARM_RK_DRM_H 31 32 #include <sys/workqueue.h> 33 #include <drm/drm_fb_helper.h> 34 #include <drm/drm_gem_cma_helper.h> 35 36 #define DRIVER_AUTHOR "Jared McNeill" 37 38 #define DRIVER_NAME "rk" 39 #define DRIVER_DESC "Rockchip Display Subsystem" 40 #define DRIVER_DATE "20191109" 41 42 #define DRIVER_MAJOR 1 43 #define DRIVER_MINOR 0 44 #define DRIVER_PATCHLEVEL 0 45 46 struct rk_framebuffer; 47 48 #define RK_DRM_MAX_CRTC 2 49 50 struct rk_drm_vblank { 51 void *priv; 52 void (*enable_vblank)(void *); 53 void (*disable_vblank)(void *); 54 uint32_t (*get_vblank_counter)(void *); 55 }; 56 57 struct rk_drm_softc { 58 device_t sc_dev; 59 struct drm_device *sc_ddev; 60 61 bus_space_tag_t sc_bst; 62 bus_dma_tag_t sc_dmat; 63 64 int sc_phandle; 65 66 struct lwp *sc_task_thread; 67 SIMPLEQ_HEAD(, rk_drm_task) sc_tasks; 68 struct workqueue *sc_task_wq; 69 70 bool sc_dev_registered; 71 72 struct rk_drm_vblank sc_vbl[RK_DRM_MAX_CRTC]; 73 }; 74 75 struct rk_drm_framebuffer { 76 struct drm_framebuffer base; 77 struct drm_gem_cma_object *obj; 78 }; 79 80 struct rk_drm_ports { 81 int phandle; 82 struct fdt_device_ports *port; 83 struct drm_device *ddev; 84 TAILQ_ENTRY(rk_drm_ports) entries; 85 }; 86 87 struct rk_drm_fbdev { 88 struct drm_fb_helper helper; 89 }; 90 91 struct rk_drmfb_attach_args { 92 struct drm_device *sfa_drm_dev; 93 struct drm_fb_helper *sfa_fb_helper; 94 struct drm_fb_helper_surface_size sfa_fb_sizes; 95 bus_space_tag_t sfa_fb_bst; 96 bus_dma_tag_t sfa_fb_dmat; 97 uint32_t sfa_fb_linebytes; 98 }; 99 100 struct rk_drm_task { 101 union { 102 SIMPLEQ_ENTRY(rk_drm_task) queue; 103 struct work work; 104 } rdt_u; 105 void (*rdt_fn)(struct rk_drm_task *); 106 }; 107 108 #define rk_drm_private(ddev) (ddev)->dev_private 109 #define to_rk_drm_framebuffer(x) container_of(x, struct rk_drm_framebuffer, base) 110 111 int rk_drm_register_port(int, struct fdt_device_ports *); 112 struct drm_device *rk_drm_port_device(struct fdt_device_ports *); 113 114 void rk_task_init(struct rk_drm_task *, 115 void (*)(struct rk_drm_task *)); 116 void rk_task_schedule(device_t, struct rk_drm_task *); 117 118 #endif /* _ARM_RK_DRM_H */ 119