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	int type;
 35	const struct intel_dsi_dev_ops *dev_ops;
 36	void *dev_priv;
 37};
 38
 39struct intel_dsi_dev_ops {
 40	bool (*init)(struct intel_dsi_device *dsi);
 41
 42	void (*panel_reset)(struct intel_dsi_device *dsi);
 43
 44	void (*disable_panel_power)(struct intel_dsi_device *dsi);
 45
 46	/* one time programmable commands if needed */
 47	void (*send_otp_cmds)(struct intel_dsi_device *dsi);
 48
 49	/* This callback must be able to assume DSI commands can be sent */
 50	void (*enable)(struct intel_dsi_device *dsi);
 51
 52	/* This callback must be able to assume DSI commands can be sent */
 53	void (*disable)(struct intel_dsi_device *dsi);
 54
 55	int (*mode_valid)(struct intel_dsi_device *dsi,
 56			  struct drm_display_mode *mode);
 57
 58	bool (*mode_fixup)(struct intel_dsi_device *dsi,
 59			   const struct drm_display_mode *mode,
 60			   struct drm_display_mode *adjusted_mode);
 61
 62	void (*mode_set)(struct intel_dsi_device *dsi,
 63			 struct drm_display_mode *mode,
 64			 struct drm_display_mode *adjusted_mode);
 65
 66	enum drm_connector_status (*detect)(struct intel_dsi_device *dsi);
 67
 68	bool (*get_hw_state)(struct intel_dsi_device *dev);
 69
 70	struct drm_display_mode *(*get_modes)(struct intel_dsi_device *dsi);
 71
 72	void (*destroy) (struct intel_dsi_device *dsi);
 73};
 74
 75struct intel_dsi {
 76	struct intel_encoder base;
 77
 78	struct intel_dsi_device dev;
 79
 80	struct intel_connector *attached_connector;
 81
 82	/* if true, use HS mode, otherwise LP */
 83	bool hs;
 84
 85	/* virtual channel */
 86	int channel;
 87
 88	/* number of DSI lanes */
 89	unsigned int lane_count;
 90
 91	/* video mode pixel format for MIPI_DSI_FUNC_PRG register */
 92	u32 pixel_format;
 93
 94	/* video mode format for MIPI_VIDEO_MODE_FORMAT register */
 95	u32 video_mode_format;
 96
 97	/* eot for MIPI_EOT_DISABLE register */
 98	u32 eot_disable;
 99
100	u32 port_bits;
101	u32 bw_timer;
102	u32 dphy_reg;
103	u32 video_frmt_cfg_bits;
104	u16 lp_byte_clk;
105
106	/* timeouts in byte clocks */
107	u16 lp_rx_timeout;
108	u16 turn_arnd_val;
109	u16 rst_timer_val;
110	u16 hs_to_lp_count;
111	u16 clk_lp_to_hs_count;
112	u16 clk_hs_to_lp_count;
113};
114
115static inline struct intel_dsi *enc_to_intel_dsi(struct drm_encoder *encoder)
116{
117	return container_of(encoder, struct intel_dsi, base.base);
118}
119
120extern void vlv_enable_dsi_pll(struct intel_encoder *encoder);
121extern void vlv_disable_dsi_pll(struct intel_encoder *encoder);
122
123#endif /* _INTEL_DSI_H */

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