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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;
29struct rcar_du_lvdsenc;
30
31#define RCAR_DU_FEATURE_CRTC_IRQ_CLOCK (1 << 0) /* Per-CRTC IRQ and clock */
32#define RCAR_DU_FEATURE_EXT_CTRL_REGS (1 << 1) /* Has extended control registers */
33#define RCAR_DU_FEATURE_VSP1_SOURCE (1 << 2) /* Has inputs from VSP1 */
34
35#define RCAR_DU_QUIRK_ALIGN_128B (1 << 0) /* Align pitches to 128 bytes */
36#define RCAR_DU_QUIRK_LVDS_LANES (1 << 1) /* LVDS lanes 1 and 3 inverted */
37
38/*
39 * struct rcar_du_output_routing - Output routing specification
40 * @possible_crtcs: bitmask of possible CRTCs for the output
41 * @encoder_type: DRM type of the internal encoder associated with the output
42 * @port: device tree port number corresponding to this output route
43 *
44 * The DU has 5 possible outputs (DPAD0/1, LVDS0/1, TCON). Output routing data
45 * specify the valid SoC outputs, which CRTCs can drive the output, and the type
46 * of in-SoC encoder for the output.
47 */
48struct rcar_du_output_routing {
49 unsigned int possible_crtcs;
50 unsigned int encoder_type;
51 unsigned int port;
52};
53
54/*
55 * struct rcar_du_device_info - DU model-specific information
56 * @gen: device generation (2 or 3)
57 * @features: device features (RCAR_DU_FEATURE_*)
58 * @quirks: device quirks (RCAR_DU_QUIRK_*)
59 * @num_crtcs: total number of CRTCs
60 * @routes: array of CRTC to output routes, indexed by output (RCAR_DU_OUTPUT_*)
61 * @num_lvds: number of internal LVDS encoders
62 */
63struct rcar_du_device_info {
64 unsigned int gen;
65 unsigned int features;
66 unsigned int quirks;
67 unsigned int num_crtcs;
68 struct rcar_du_output_routing routes[RCAR_DU_OUTPUT_MAX];
69 unsigned int num_lvds;
70};
71
72#define RCAR_DU_MAX_CRTCS 4
73#define RCAR_DU_MAX_GROUPS DIV_ROUND_UP(RCAR_DU_MAX_CRTCS, 2)
74#define RCAR_DU_MAX_LVDS 2
75#define RCAR_DU_MAX_VSPS 4
76
77struct rcar_du_device {
78 struct device *dev;
79 const struct rcar_du_device_info *info;
80
81 void __iomem *mmio;
82
83 struct drm_device *ddev;
84 struct drm_fbdev_cma *fbdev;
85
86 struct rcar_du_crtc crtcs[RCAR_DU_MAX_CRTCS];
87 unsigned int num_crtcs;
88
89 struct rcar_du_group groups[RCAR_DU_MAX_GROUPS];
90 struct rcar_du_vsp vsps[RCAR_DU_MAX_VSPS];
91
92 struct {
93 struct drm_property *alpha;
94 struct drm_property *colorkey;
95 struct drm_property *zpos;
96 } props;
97
98 unsigned int dpad0_source;
99 unsigned int vspd1_sink;
100
101 struct rcar_du_lvdsenc *lvds[RCAR_DU_MAX_LVDS];
102
103 struct {
104 wait_queue_head_t wait;
105 u32 pending;
106 } commit;
107};
108
109static inline bool rcar_du_has(struct rcar_du_device *rcdu,
110 unsigned int feature)
111{
112 return rcdu->info->features & feature;
113}
114
115static inline bool rcar_du_needs(struct rcar_du_device *rcdu,
116 unsigned int quirk)
117{
118 return rcdu->info->quirks & quirk;
119}
120
121static inline u32 rcar_du_read(struct rcar_du_device *rcdu, u32 reg)
122{
123 return ioread32(rcdu->mmio + reg);
124}
125
126static inline void rcar_du_write(struct rcar_du_device *rcdu, u32 reg, u32 data)
127{
128 iowrite32(data, rcdu->mmio + reg);
129}
130
131#endif /* __RCAR_DU_DRV_H__ */
1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * 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 <drm/drm_device.h>
17
18#include "rcar_cmm.h"
19#include "rcar_du_crtc.h"
20#include "rcar_du_group.h"
21#include "rcar_du_vsp.h"
22
23struct clk;
24struct device;
25struct drm_bridge;
26struct drm_property;
27struct rcar_du_device;
28
29#define RCAR_DU_FEATURE_CRTC_IRQ BIT(0) /* Per-CRTC IRQ */
30#define RCAR_DU_FEATURE_CRTC_CLOCK BIT(1) /* Per-CRTC clock */
31#define RCAR_DU_FEATURE_VSP1_SOURCE BIT(2) /* Has inputs from VSP1 */
32#define RCAR_DU_FEATURE_INTERLACED BIT(3) /* HW supports interlaced */
33#define RCAR_DU_FEATURE_TVM_SYNC BIT(4) /* Has TV switch/sync modes */
34#define RCAR_DU_FEATURE_NO_BLENDING BIT(5) /* PnMR.SPIM does not have ALP nor EOR bits */
35
36#define RCAR_DU_QUIRK_ALIGN_128B BIT(0) /* Align pitches to 128 bytes */
37
38enum rcar_du_output {
39 RCAR_DU_OUTPUT_DPAD0,
40 RCAR_DU_OUTPUT_DPAD1,
41 RCAR_DU_OUTPUT_DSI0,
42 RCAR_DU_OUTPUT_DSI1,
43 RCAR_DU_OUTPUT_HDMI0,
44 RCAR_DU_OUTPUT_HDMI1,
45 RCAR_DU_OUTPUT_LVDS0,
46 RCAR_DU_OUTPUT_LVDS1,
47 RCAR_DU_OUTPUT_TCON,
48 RCAR_DU_OUTPUT_MAX,
49};
50
51/*
52 * struct rcar_du_output_routing - Output routing specification
53 * @possible_crtcs: bitmask of possible CRTCs for the output
54 * @port: device tree port number corresponding to this output route
55 *
56 * The DU has 5 possible outputs (DPAD0/1, LVDS0/1, TCON). Output routing data
57 * specify the valid SoC outputs, which CRTCs can drive the output, and the type
58 * of in-SoC encoder for the output.
59 */
60struct rcar_du_output_routing {
61 unsigned int possible_crtcs;
62 unsigned int port;
63};
64
65/*
66 * struct rcar_du_device_info - DU model-specific information
67 * @gen: device generation (2 or 3)
68 * @features: device features (RCAR_DU_FEATURE_*)
69 * @quirks: device quirks (RCAR_DU_QUIRK_*)
70 * @channels_mask: bit mask of available DU channels
71 * @routes: array of CRTC to output routes, indexed by output (RCAR_DU_OUTPUT_*)
72 * @num_lvds: number of internal LVDS encoders
73 * @num_rpf: number of RPFs in VSP
74 * @dpll_mask: bit mask of DU channels equipped with a DPLL
75 * @dsi_clk_mask: bitmask of channels that can use the DSI clock as dot clock
76 * @lvds_clk_mask: bitmask of channels that can use the LVDS clock as dot clock
77 */
78struct rcar_du_device_info {
79 unsigned int gen;
80 unsigned int features;
81 unsigned int quirks;
82 unsigned int channels_mask;
83 struct rcar_du_output_routing routes[RCAR_DU_OUTPUT_MAX];
84 unsigned int num_lvds;
85 unsigned int num_rpf;
86 unsigned int dpll_mask;
87 unsigned int dsi_clk_mask;
88 unsigned int lvds_clk_mask;
89};
90
91#define RCAR_DU_MAX_CRTCS 4
92#define RCAR_DU_MAX_GROUPS DIV_ROUND_UP(RCAR_DU_MAX_CRTCS, 2)
93#define RCAR_DU_MAX_VSPS 4
94#define RCAR_DU_MAX_LVDS 2
95#define RCAR_DU_MAX_DSI 2
96
97struct rcar_du_device {
98 struct device *dev;
99 const struct rcar_du_device_info *info;
100
101 void __iomem *mmio;
102
103 struct drm_device ddev;
104
105 struct rcar_du_crtc crtcs[RCAR_DU_MAX_CRTCS];
106 unsigned int num_crtcs;
107
108 struct rcar_du_group groups[RCAR_DU_MAX_GROUPS];
109 struct platform_device *cmms[RCAR_DU_MAX_CRTCS];
110 struct rcar_du_vsp vsps[RCAR_DU_MAX_VSPS];
111 struct drm_bridge *lvds[RCAR_DU_MAX_LVDS];
112 struct drm_bridge *dsi[RCAR_DU_MAX_DSI];
113
114 struct {
115 struct drm_property *colorkey;
116 } props;
117
118 unsigned int dpad0_source;
119 unsigned int dpad1_source;
120 unsigned int vspd1_sink;
121};
122
123static inline struct rcar_du_device *to_rcar_du_device(struct drm_device *dev)
124{
125 return container_of(dev, struct rcar_du_device, ddev);
126}
127
128static inline bool rcar_du_has(struct rcar_du_device *rcdu,
129 unsigned int feature)
130{
131 return rcdu->info->features & feature;
132}
133
134static inline bool rcar_du_needs(struct rcar_du_device *rcdu,
135 unsigned int quirk)
136{
137 return rcdu->info->quirks & quirk;
138}
139
140static inline u32 rcar_du_read(struct rcar_du_device *rcdu, u32 reg)
141{
142 return ioread32(rcdu->mmio + reg);
143}
144
145static inline void rcar_du_write(struct rcar_du_device *rcdu, u32 reg, u32 data)
146{
147 iowrite32(data, rcdu->mmio + reg);
148}
149
150const char *rcar_du_output_name(enum rcar_du_output output);
151
152#endif /* __RCAR_DU_DRV_H__ */