1/*
 2 * Copyright (C) 2013 Red Hat
 3 * Author: Rob Clark <robdclark@gmail.com>
 4 *
 5 * This program is free software; you can redistribute it and/or modify it
 6 * under the terms of the GNU General Public License version 2 as published by
 7 * the Free Software Foundation.
 8 *
 9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program.  If not, see <http://www.gnu.org/licenses/>.
16 */
17
18#ifndef __MSM_KMS_H__
19#define __MSM_KMS_H__
20
21#include <linux/clk.h>
22#include <linux/regulator/consumer.h>
23
24#include "msm_drv.h"
25
26/* As there are different display controller blocks depending on the
27 * snapdragon version, the kms support is split out and the appropriate
28 * implementation is loaded at runtime.  The kms module is responsible
29 * for constructing the appropriate planes/crtcs/encoders/connectors.
30 */
31struct msm_kms_funcs {
32	/* hw initialization: */
33	int (*hw_init)(struct msm_kms *kms);
34	/* irq handling: */
35	void (*irq_preinstall)(struct msm_kms *kms);
36	int (*irq_postinstall)(struct msm_kms *kms);
37	void (*irq_uninstall)(struct msm_kms *kms);
38	irqreturn_t (*irq)(struct msm_kms *kms);
39	int (*enable_vblank)(struct msm_kms *kms, struct drm_crtc *crtc);
40	void (*disable_vblank)(struct msm_kms *kms, struct drm_crtc *crtc);
41	/* misc: */
42	const struct msm_format *(*get_format)(struct msm_kms *kms, uint32_t format);
43	long (*round_pixclk)(struct msm_kms *kms, unsigned long rate,
44			struct drm_encoder *encoder);
45	/* cleanup: */
46	void (*preclose)(struct msm_kms *kms, struct drm_file *file);
47	void (*destroy)(struct msm_kms *kms);
48};
49
50struct msm_kms {
51	const struct msm_kms_funcs *funcs;
52
53	/* irq handling: */
54	bool in_irq;
55	struct list_head irq_list;    /* list of mdp4_irq */
56	uint32_t vblank_mask;         /* irq bits set for userspace vblank */
57};
58
59static inline void msm_kms_init(struct msm_kms *kms,
60		const struct msm_kms_funcs *funcs)
61{
62	kms->funcs = funcs;
63}
64
65struct msm_kms *mdp4_kms_init(struct drm_device *dev);
66struct msm_kms *mdp5_kms_init(struct drm_device *dev);
67
68#endif /* __MSM_KMS_H__ */