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      1  1.2  riastrad /* $NetBSD: rk_drm.h,v 1.2 2021/12/19 12:28:27 riastradh Exp $ */
      2  1.1  jmcneill 
      3  1.1  jmcneill /*-
      4  1.1  jmcneill  * Copyright (c) 2019 Jared D. McNeill <jmcneill (at) invisible.ca>
      5  1.1  jmcneill  * All rights reserved.
      6  1.1  jmcneill  *
      7  1.1  jmcneill  * Redistribution and use in source and binary forms, with or without
      8  1.1  jmcneill  * modification, are permitted provided that the following conditions
      9  1.1  jmcneill  * are met:
     10  1.1  jmcneill  * 1. Redistributions of source code must retain the above copyright
     11  1.1  jmcneill  *    notice, this list of conditions and the following disclaimer.
     12  1.1  jmcneill  * 2. Redistributions in binary form must reproduce the above copyright
     13  1.1  jmcneill  *    notice, this list of conditions and the following disclaimer in the
     14  1.1  jmcneill  *    documentation and/or other materials provided with the distribution.
     15  1.1  jmcneill  *
     16  1.1  jmcneill  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  1.1  jmcneill  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  1.1  jmcneill  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  1.1  jmcneill  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  1.1  jmcneill  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     21  1.1  jmcneill  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     22  1.1  jmcneill  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     23  1.1  jmcneill  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     24  1.1  jmcneill  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  1.1  jmcneill  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  1.1  jmcneill  * SUCH DAMAGE.
     27  1.1  jmcneill  */
     28  1.1  jmcneill 
     29  1.1  jmcneill #ifndef _ARM_RK_DRM_H
     30  1.1  jmcneill #define _ARM_RK_DRM_H
     31  1.1  jmcneill 
     32  1.2  riastrad #include <sys/workqueue.h>
     33  1.1  jmcneill #include <drm/drm_fb_helper.h>
     34  1.1  jmcneill #include <drm/drm_gem_cma_helper.h>
     35  1.1  jmcneill 
     36  1.1  jmcneill #define DRIVER_AUTHOR		"Jared McNeill"
     37  1.1  jmcneill 
     38  1.1  jmcneill #define DRIVER_NAME		"rk"
     39  1.1  jmcneill #define DRIVER_DESC		"Rockchip Display Subsystem"
     40  1.1  jmcneill #define DRIVER_DATE		"20191109"
     41  1.1  jmcneill 
     42  1.1  jmcneill #define DRIVER_MAJOR		1
     43  1.1  jmcneill #define DRIVER_MINOR		0
     44  1.1  jmcneill #define DRIVER_PATCHLEVEL	0
     45  1.1  jmcneill 
     46  1.1  jmcneill struct rk_framebuffer;
     47  1.1  jmcneill 
     48  1.1  jmcneill #define	RK_DRM_MAX_CRTC	2
     49  1.1  jmcneill 
     50  1.1  jmcneill struct rk_drm_vblank {
     51  1.1  jmcneill 	void			*priv;
     52  1.1  jmcneill 	void			(*enable_vblank)(void *);
     53  1.1  jmcneill 	void			(*disable_vblank)(void *);
     54  1.1  jmcneill 	uint32_t		(*get_vblank_counter)(void *);
     55  1.1  jmcneill };
     56  1.1  jmcneill 
     57  1.1  jmcneill struct rk_drm_softc {
     58  1.1  jmcneill 	device_t		sc_dev;
     59  1.1  jmcneill 	struct drm_device	*sc_ddev;
     60  1.1  jmcneill 
     61  1.1  jmcneill 	bus_space_tag_t		sc_bst;
     62  1.1  jmcneill 	bus_dma_tag_t		sc_dmat;
     63  1.1  jmcneill 
     64  1.1  jmcneill 	int			sc_phandle;
     65  1.1  jmcneill 
     66  1.2  riastrad 	struct lwp			*sc_task_thread;
     67  1.2  riastrad 	SIMPLEQ_HEAD(, rk_drm_task)	sc_tasks;
     68  1.2  riastrad 	struct workqueue		*sc_task_wq;
     69  1.2  riastrad 
     70  1.2  riastrad 	bool			sc_dev_registered;
     71  1.2  riastrad 
     72  1.1  jmcneill 	struct rk_drm_vblank	sc_vbl[RK_DRM_MAX_CRTC];
     73  1.1  jmcneill };
     74  1.1  jmcneill 
     75  1.1  jmcneill struct rk_drm_framebuffer {
     76  1.1  jmcneill 	struct drm_framebuffer	base;
     77  1.1  jmcneill 	struct drm_gem_cma_object *obj;
     78  1.1  jmcneill };
     79  1.1  jmcneill 
     80  1.1  jmcneill struct rk_drm_ports {
     81  1.1  jmcneill 	int			phandle;
     82  1.1  jmcneill 	struct fdt_device_ports	*port;
     83  1.1  jmcneill 	struct drm_device	*ddev;
     84  1.1  jmcneill 	TAILQ_ENTRY(rk_drm_ports) entries;
     85  1.1  jmcneill };
     86  1.1  jmcneill 
     87  1.1  jmcneill struct rk_drm_fbdev {
     88  1.1  jmcneill 	struct drm_fb_helper	helper;
     89  1.1  jmcneill };
     90  1.1  jmcneill 
     91  1.1  jmcneill struct rk_drmfb_attach_args {
     92  1.1  jmcneill 	struct drm_device	*sfa_drm_dev;
     93  1.1  jmcneill 	struct drm_fb_helper	*sfa_fb_helper;
     94  1.1  jmcneill 	struct drm_fb_helper_surface_size sfa_fb_sizes;
     95  1.1  jmcneill 	bus_space_tag_t		sfa_fb_bst;
     96  1.1  jmcneill 	bus_dma_tag_t		sfa_fb_dmat;
     97  1.1  jmcneill 	uint32_t		sfa_fb_linebytes;
     98  1.1  jmcneill };
     99  1.1  jmcneill 
    100  1.2  riastrad struct rk_drm_task {
    101  1.2  riastrad 	union {
    102  1.2  riastrad 		SIMPLEQ_ENTRY(rk_drm_task)	queue;
    103  1.2  riastrad 		struct work			work;
    104  1.2  riastrad 	}		rdt_u;
    105  1.2  riastrad 	void		(*rdt_fn)(struct rk_drm_task *);
    106  1.2  riastrad };
    107  1.2  riastrad 
    108  1.1  jmcneill #define rk_drm_private(ddev)		(ddev)->dev_private
    109  1.1  jmcneill #define	to_rk_drm_framebuffer(x)	container_of(x, struct rk_drm_framebuffer, base)
    110  1.1  jmcneill 
    111  1.1  jmcneill int	rk_drm_register_port(int, struct fdt_device_ports *);
    112  1.1  jmcneill struct drm_device *rk_drm_port_device(struct fdt_device_ports *);
    113  1.1  jmcneill 
    114  1.2  riastrad void	rk_task_init(struct rk_drm_task *,
    115  1.2  riastrad 	    void (*)(struct rk_drm_task *));
    116  1.2  riastrad void	rk_task_schedule(device_t, struct rk_drm_task *);
    117  1.2  riastrad 
    118  1.1  jmcneill #endif /* _ARM_RK_DRM_H */
    119