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1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * rcar_du_drv.h -- R-Car Display Unit DRM driver
4 *
5 * Copyright (C) 2013-2015 Renesas Electronics Corporation
6 *
7 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
8 */
9
10#ifndef __RCAR_DU_DRV_H__
11#define __RCAR_DU_DRV_H__
12
13#include <linux/kernel.h>
14#include <linux/wait.h>
15
16#include "rcar_du_crtc.h"
17#include "rcar_du_group.h"
18#include "rcar_du_vsp.h"
19
20struct clk;
21struct device;
22struct drm_device;
23struct drm_property;
24struct rcar_du_device;
25struct rcar_du_encoder;
26
27#define RCAR_DU_FEATURE_CRTC_IRQ_CLOCK BIT(0) /* Per-CRTC IRQ and clock */
28#define RCAR_DU_FEATURE_VSP1_SOURCE BIT(1) /* Has inputs from VSP1 */
29#define RCAR_DU_FEATURE_INTERLACED BIT(2) /* HW supports interlaced */
30#define RCAR_DU_FEATURE_TVM_SYNC BIT(3) /* Has TV switch/sync modes */
31
32#define RCAR_DU_QUIRK_ALIGN_128B BIT(0) /* Align pitches to 128 bytes */
33
34/*
35 * struct rcar_du_output_routing - Output routing specification
36 * @possible_crtcs: bitmask of possible CRTCs for the output
37 * @port: device tree port number corresponding to this output route
38 *
39 * The DU has 5 possible outputs (DPAD0/1, LVDS0/1, TCON). Output routing data
40 * specify the valid SoC outputs, which CRTCs can drive the output, and the type
41 * of in-SoC encoder for the output.
42 */
43struct rcar_du_output_routing {
44 unsigned int possible_crtcs;
45 unsigned int port;
46};
47
48/*
49 * struct rcar_du_device_info - DU model-specific information
50 * @gen: device generation (2 or 3)
51 * @features: device features (RCAR_DU_FEATURE_*)
52 * @quirks: device quirks (RCAR_DU_QUIRK_*)
53 * @channels_mask: bit mask of available DU channels
54 * @routes: array of CRTC to output routes, indexed by output (RCAR_DU_OUTPUT_*)
55 * @num_lvds: number of internal LVDS encoders
56 * @dpll_mask: bit mask of DU channels equipped with a DPLL
57 * @lvds_clk_mask: bitmask of channels that can use the LVDS clock as dot clock
58 */
59struct rcar_du_device_info {
60 unsigned int gen;
61 unsigned int features;
62 unsigned int quirks;
63 unsigned int channels_mask;
64 struct rcar_du_output_routing routes[RCAR_DU_OUTPUT_MAX];
65 unsigned int num_lvds;
66 unsigned int dpll_mask;
67 unsigned int lvds_clk_mask;
68};
69
70#define RCAR_DU_MAX_CRTCS 4
71#define RCAR_DU_MAX_GROUPS DIV_ROUND_UP(RCAR_DU_MAX_CRTCS, 2)
72#define RCAR_DU_MAX_VSPS 4
73
74struct rcar_du_device {
75 struct device *dev;
76 const struct rcar_du_device_info *info;
77
78 void __iomem *mmio;
79
80 struct drm_device *ddev;
81
82 struct rcar_du_crtc crtcs[RCAR_DU_MAX_CRTCS];
83 unsigned int num_crtcs;
84
85 struct rcar_du_encoder *encoders[RCAR_DU_OUTPUT_MAX];
86
87 struct rcar_du_group groups[RCAR_DU_MAX_GROUPS];
88 struct rcar_du_vsp vsps[RCAR_DU_MAX_VSPS];
89
90 struct {
91 struct drm_property *colorkey;
92 } props;
93
94 unsigned int dpad0_source;
95 unsigned int dpad1_source;
96 unsigned int vspd1_sink;
97};
98
99static inline bool rcar_du_has(struct rcar_du_device *rcdu,
100 unsigned int feature)
101{
102 return rcdu->info->features & feature;
103}
104
105static inline bool rcar_du_needs(struct rcar_du_device *rcdu,
106 unsigned int quirk)
107{
108 return rcdu->info->quirks & quirk;
109}
110
111static inline u32 rcar_du_read(struct rcar_du_device *rcdu, u32 reg)
112{
113 return ioread32(rcdu->mmio + reg);
114}
115
116static inline void rcar_du_write(struct rcar_du_device *rcdu, u32 reg, u32 data)
117{
118 iowrite32(data, rcdu->mmio + reg);
119}
120
121#endif /* __RCAR_DU_DRV_H__ */
1/*
2 * rcar_du_drv.h -- R-Car Display Unit DRM driver
3 *
4 * Copyright (C) 2013-2015 Renesas Electronics Corporation
5 *
6 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#ifndef __RCAR_DU_DRV_H__
15#define __RCAR_DU_DRV_H__
16
17#include <linux/kernel.h>
18#include <linux/wait.h>
19
20#include "rcar_du_crtc.h"
21#include "rcar_du_group.h"
22#include "rcar_du_vsp.h"
23
24struct clk;
25struct device;
26struct drm_device;
27struct drm_fbdev_cma;
28struct rcar_du_device;
29
30#define RCAR_DU_FEATURE_CRTC_IRQ_CLOCK (1 << 0) /* Per-CRTC IRQ and clock */
31#define RCAR_DU_FEATURE_EXT_CTRL_REGS (1 << 1) /* Has extended control registers */
32#define RCAR_DU_FEATURE_VSP1_SOURCE (1 << 2) /* Has inputs from VSP1 */
33
34#define RCAR_DU_QUIRK_ALIGN_128B (1 << 0) /* Align pitches to 128 bytes */
35
36/*
37 * struct rcar_du_output_routing - Output routing specification
38 * @possible_crtcs: bitmask of possible CRTCs for the output
39 * @port: device tree port number corresponding to this output route
40 *
41 * The DU has 5 possible outputs (DPAD0/1, LVDS0/1, TCON). Output routing data
42 * specify the valid SoC outputs, which CRTCs can drive the output, and the type
43 * of in-SoC encoder for the output.
44 */
45struct rcar_du_output_routing {
46 unsigned int possible_crtcs;
47 unsigned int port;
48};
49
50/*
51 * struct rcar_du_device_info - DU model-specific information
52 * @gen: device generation (2 or 3)
53 * @features: device features (RCAR_DU_FEATURE_*)
54 * @quirks: device quirks (RCAR_DU_QUIRK_*)
55 * @num_crtcs: total number of CRTCs
56 * @routes: array of CRTC to output routes, indexed by output (RCAR_DU_OUTPUT_*)
57 * @num_lvds: number of internal LVDS encoders
58 */
59struct rcar_du_device_info {
60 unsigned int gen;
61 unsigned int features;
62 unsigned int quirks;
63 unsigned int num_crtcs;
64 struct rcar_du_output_routing routes[RCAR_DU_OUTPUT_MAX];
65 unsigned int num_lvds;
66 unsigned int dpll_ch;
67};
68
69#define RCAR_DU_MAX_CRTCS 4
70#define RCAR_DU_MAX_GROUPS DIV_ROUND_UP(RCAR_DU_MAX_CRTCS, 2)
71#define RCAR_DU_MAX_VSPS 4
72
73struct rcar_du_device {
74 struct device *dev;
75 const struct rcar_du_device_info *info;
76
77 void __iomem *mmio;
78
79 struct drm_device *ddev;
80 struct drm_fbdev_cma *fbdev;
81 struct drm_atomic_state *suspend_state;
82
83 struct rcar_du_crtc crtcs[RCAR_DU_MAX_CRTCS];
84 unsigned int num_crtcs;
85
86 struct rcar_du_group groups[RCAR_DU_MAX_GROUPS];
87 struct rcar_du_vsp vsps[RCAR_DU_MAX_VSPS];
88
89 struct {
90 struct drm_property *alpha;
91 struct drm_property *colorkey;
92 } props;
93
94 unsigned int dpad0_source;
95 unsigned int vspd1_sink;
96};
97
98static inline bool rcar_du_has(struct rcar_du_device *rcdu,
99 unsigned int feature)
100{
101 return rcdu->info->features & feature;
102}
103
104static inline bool rcar_du_needs(struct rcar_du_device *rcdu,
105 unsigned int quirk)
106{
107 return rcdu->info->quirks & quirk;
108}
109
110static inline u32 rcar_du_read(struct rcar_du_device *rcdu, u32 reg)
111{
112 return ioread32(rcdu->mmio + reg);
113}
114
115static inline void rcar_du_write(struct rcar_du_device *rcdu, u32 reg, u32 data)
116{
117 iowrite32(data, rcdu->mmio + reg);
118}
119
120#endif /* __RCAR_DU_DRV_H__ */