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 __MDP_KMS_H__
19#define __MDP_KMS_H__
20
21#include <linux/clk.h>
22#include <linux/platform_device.h>
23#include <linux/regulator/consumer.h>
24
25#include "msm_drv.h"
26#include "msm_kms.h"
27#include "mdp_common.xml.h"
28
29struct mdp_kms;
30
31struct mdp_kms_funcs {
32	struct msm_kms_funcs base;
33	void (*set_irqmask)(struct mdp_kms *mdp_kms, uint32_t irqmask);
34};
35
36struct mdp_kms {
37	struct msm_kms base;
38
39	const struct mdp_kms_funcs *funcs;
40
41	/* irq handling: */
42	bool in_irq;
43	struct list_head irq_list;    /* list of mdp4_irq */
44	uint32_t vblank_mask;         /* irq bits set for userspace vblank */
45};
46#define to_mdp_kms(x) container_of(x, struct mdp_kms, base)
47
48static inline void mdp_kms_init(struct mdp_kms *mdp_kms,
49		const struct mdp_kms_funcs *funcs)
50{
51	mdp_kms->funcs = funcs;
52	INIT_LIST_HEAD(&mdp_kms->irq_list);
53	msm_kms_init(&mdp_kms->base, &funcs->base);
54}
55
56/*
57 * irq helpers:
58 */
59
60/* For transiently registering for different MDP irqs that various parts
61 * of the KMS code need during setup/configuration.  These are not
62 * necessarily the same as what drm_vblank_get/put() are requesting, and
63 * the hysteresis in drm_vblank_put() is not necessarily desirable for
64 * internal housekeeping related irq usage.
65 */
66struct mdp_irq {
67	struct list_head node;
68	uint32_t irqmask;
69	bool registered;
70	void (*irq)(struct mdp_irq *irq, uint32_t irqstatus);
71};
72
73void mdp_dispatch_irqs(struct mdp_kms *mdp_kms, uint32_t status);
74void mdp_update_vblank_mask(struct mdp_kms *mdp_kms, uint32_t mask, bool enable);
75void mdp_irq_wait(struct mdp_kms *mdp_kms, uint32_t irqmask);
76void mdp_irq_register(struct mdp_kms *mdp_kms, struct mdp_irq *irq);
77void mdp_irq_unregister(struct mdp_kms *mdp_kms, struct mdp_irq *irq);
78void mdp_irq_update(struct mdp_kms *mdp_kms);
79
80/*
81 * pixel format helpers:
82 */
83
84struct mdp_format {
85	struct msm_format base;
86	enum mdp_bpc bpc_r, bpc_g, bpc_b;
87	enum mdp_bpc_alpha bpc_a;
88	uint8_t unpack[4];
89	bool alpha_enable, unpack_tight;
90	uint8_t cpp, unpack_count;
91	enum mdp_sspp_fetch_type fetch_type;
92	enum mdp_chroma_samp_type chroma_sample;
93};
94#define to_mdp_format(x) container_of(x, struct mdp_format, base)
95#define MDP_FORMAT_IS_YUV(mdp_format) ((mdp_format)->chroma_sample > CHROMA_RGB)
96
97uint32_t mdp_get_formats(uint32_t *formats, uint32_t max_formats, bool rgb_only);
98const struct msm_format *mdp_get_format(struct msm_kms *kms, uint32_t format);
99
100enum csc_type {
101	CSC_RGB2RGB = 0,
102	CSC_YUV2RGB,
103	CSC_RGB2YUV,
104	CSC_YUV2YUV,
105	CSC_MAX
106};
107
108struct csc_cfg {
109	enum csc_type type;
110	uint32_t matrix[9];
111	uint32_t pre_bias[3];
112	uint32_t post_bias[3];
113	uint32_t pre_clamp[6];
114	uint32_t post_clamp[6];
115};
116
117struct csc_cfg *mdp_get_default_csc_cfg(enum csc_type);
118
119#endif /* __MDP_KMS_H__ */
120