tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright (C) STMicroelectronics SA 2014
3 * Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
4 * Fabien Dessenne <fabien.dessenne@st.com>
5 * for STMicroelectronics.
6 * License terms: GNU General Public License (GPL), version 2
7 */
8
9#ifndef _STI_COMPOSITOR_H_
10#define _STI_COMPOSITOR_H_
11
12#include <linux/clk.h>
13#include <linux/kernel.h>
14
15#include "sti_mixer.h"
16#include "sti_plane.h"
17
18#define WAIT_NEXT_VSYNC_MS 50 /*ms*/
19
20#define STI_MAX_MIXER 2
21#define STI_MAX_VID 1
22
23enum sti_compositor_subdev_type {
24 STI_MIXER_MAIN_SUBDEV,
25 STI_MIXER_AUX_SUBDEV,
26 STI_GPD_SUBDEV,
27 STI_VID_SUBDEV,
28 STI_CURSOR_SUBDEV,
29};
30
31struct sti_compositor_subdev_descriptor {
32 enum sti_compositor_subdev_type type;
33 int id;
34 unsigned int offset;
35};
36
37/**
38 * STI Compositor data structure
39 *
40 * @nb_subdev: number of subdevices supported by the compositor
41 * @subdev_desc: subdev list description
42 */
43#define MAX_SUBDEV 9
44struct sti_compositor_data {
45 unsigned int nb_subdev;
46 struct sti_compositor_subdev_descriptor subdev_desc[MAX_SUBDEV];
47};
48
49/**
50 * STI Compositor structure
51 *
52 * @dev: driver device
53 * @regs: registers (main)
54 * @data: device data
55 * @clk_compo_main: clock for main compo
56 * @clk_compo_aux: clock for aux compo
57 * @clk_pix_main: pixel clock for main path
58 * @clk_pix_aux: pixel clock for aux path
59 * @rst_main: reset control of the main path
60 * @rst_aux: reset control of the aux path
61 * @mixer: array of mixers
62 * @vid: array of vids
63 * @vtg_main: vtg for main data path
64 * @vtg_aux: vtg for auxillary data path
65 * @vtg_vblank_nb: callback for VTG VSYNC notification
66 */
67struct sti_compositor {
68 struct device *dev;
69 void __iomem *regs;
70 struct sti_compositor_data data;
71 struct clk *clk_compo_main;
72 struct clk *clk_compo_aux;
73 struct clk *clk_pix_main;
74 struct clk *clk_pix_aux;
75 struct reset_control *rst_main;
76 struct reset_control *rst_aux;
77 struct sti_mixer *mixer[STI_MAX_MIXER];
78 struct sti_vid *vid[STI_MAX_VID];
79 struct sti_vtg *vtg_main;
80 struct sti_vtg *vtg_aux;
81 struct notifier_block vtg_vblank_nb;
82};
83
84int sti_compositor_debufs_init(struct sti_compositor *compo,
85 struct drm_minor *minor);
86
87#endif