1/*
2 * Copyright © 2013 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 */
23
24#ifndef _INTEL_DSI_H
25#define _INTEL_DSI_H
26
27#include <drm/drmP.h>
28#include <drm/drm_crtc.h>
29#include "intel_drv.h"
30
31struct intel_dsi_device {
32	unsigned int panel_id;
33	const char *name;
34	const struct intel_dsi_dev_ops *dev_ops;
35	void *dev_priv;
36};
37
38struct intel_dsi_dev_ops {
39	bool (*init)(struct intel_dsi_device *dsi);
40
41	void (*panel_reset)(struct intel_dsi_device *dsi);
42
43	void (*disable_panel_power)(struct intel_dsi_device *dsi);
44
45	/* one time programmable commands if needed */
46	void (*send_otp_cmds)(struct intel_dsi_device *dsi);
47
48	/* This callback must be able to assume DSI commands can be sent */
49	void (*enable)(struct intel_dsi_device *dsi);
50
51	/* This callback must be able to assume DSI commands can be sent */
52	void (*disable)(struct intel_dsi_device *dsi);
53
54	int (*mode_valid)(struct intel_dsi_device *dsi,
55			  struct drm_display_mode *mode);
56
57	bool (*mode_fixup)(struct intel_dsi_device *dsi,
58			   const struct drm_display_mode *mode,
59			   struct drm_display_mode *adjusted_mode);
60
61	void (*mode_set)(struct intel_dsi_device *dsi,
62			 struct drm_display_mode *mode,
63			 struct drm_display_mode *adjusted_mode);
64
65	enum drm_connector_status (*detect)(struct intel_dsi_device *dsi);
66
67	bool (*get_hw_state)(struct intel_dsi_device *dev);
68
69	struct drm_display_mode *(*get_modes)(struct intel_dsi_device *dsi);
70
71	void (*destroy) (struct intel_dsi_device *dsi);
72};
73
74struct intel_dsi {
75	struct intel_encoder base;
76
77	struct intel_dsi_device dev;
78
79	struct intel_connector *attached_connector;
80
81	/* if true, use HS mode, otherwise LP */
82	bool hs;
83
84	/* virtual channel */
85	int channel;
86
87	/* Video mode or command mode */
88	u16 operation_mode;
89
90	/* number of DSI lanes */
91	unsigned int lane_count;
92
93	/* video mode pixel format for MIPI_DSI_FUNC_PRG register */
94	u32 pixel_format;
95
96	/* video mode format for MIPI_VIDEO_MODE_FORMAT register */
97	u32 video_mode_format;
98
99	/* eot for MIPI_EOT_DISABLE register */
100	u8 eotp_pkt;
101	u8 clock_stop;
102
103	u8 escape_clk_div;
104	u32 port_bits;
105	u32 bw_timer;
106	u32 dphy_reg;
107	u32 video_frmt_cfg_bits;
108	u16 lp_byte_clk;
109
110	/* timeouts in byte clocks */
111	u16 lp_rx_timeout;
112	u16 turn_arnd_val;
113	u16 rst_timer_val;
114	u16 hs_to_lp_count;
115	u16 clk_lp_to_hs_count;
116	u16 clk_hs_to_lp_count;
117
118	u16 init_count;
119	u32 pclk;
120	u16 burst_mode_ratio;
121
122	/* all delays in ms */
123	u16 backlight_off_delay;
124	u16 backlight_on_delay;
125	u16 panel_on_delay;
126	u16 panel_off_delay;
127	u16 panel_pwr_cycle_delay;
128};
129
130static inline struct intel_dsi *enc_to_intel_dsi(struct drm_encoder *encoder)
131{
132	return container_of(encoder, struct intel_dsi, base.base);
133}
134
135extern void vlv_enable_dsi_pll(struct intel_encoder *encoder);
136extern void vlv_disable_dsi_pll(struct intel_encoder *encoder);
137extern u32 vlv_get_dsi_pclk(struct intel_encoder *encoder, int pipe_bpp);
138
139extern struct intel_dsi_dev_ops vbt_generic_dsi_display_ops;
140
141#endif /* _INTEL_DSI_H */
142