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
29 struct mdp_kms;
30
31 struct mdp_kms_funcs {
32 struct msm_kms_funcs base;
33 void (*set_irqmask)(struct mdp_kms *mdp_kms, uint32_t irqmask);
34 };
35
36 struct 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
mdp_kms_init(struct mdp_kms * mdp_kms,const struct mdp_kms_funcs * funcs)48 static 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 */
66 struct 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
73 void mdp_dispatch_irqs(struct mdp_kms *mdp_kms, uint32_t status);
74 void mdp_update_vblank_mask(struct mdp_kms *mdp_kms, uint32_t mask, bool enable);
75 void mdp_irq_wait(struct mdp_kms *mdp_kms, uint32_t irqmask);
76 void mdp_irq_register(struct mdp_kms *mdp_kms, struct mdp_irq *irq);
77 void mdp_irq_unregister(struct mdp_kms *mdp_kms, struct mdp_irq *irq);
78
79
80 /*
81 * pixel format helpers:
82 */
83
84 struct 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 };
92 #define to_mdp_format(x) container_of(x, struct mdp_format, base)
93
94 uint32_t mdp_get_formats(uint32_t *formats, uint32_t max_formats);
95 const struct msm_format *mdp_get_format(struct msm_kms *kms, uint32_t format);
96
97 #endif /* __MDP_KMS_H__ */
98