[mirror_ubuntu-artful-kernel.git] / drivers / gpu / drm / i915 / intel_dsi.h

/*
 * Copyright © 2013 Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

#ifndef _INTEL_DSI_H
#define _INTEL_DSI_H

#include <drm/drmP.h>
#include <drm/drm_crtc.h>
#include <drm/drm_mipi_dsi.h>
#include "intel_drv.h"

/* Dual Link support */
#define DSI_DUAL_LINK_NONE		0
#define DSI_DUAL_LINK_FRONT_BACK	1
#define DSI_DUAL_LINK_PIXEL_ALT		2

struct intel_dsi_host;

struct intel_dsi {
	struct intel_encoder base;

	struct drm_panel *panel;
	struct intel_dsi_host *dsi_hosts[I915_MAX_PORTS];

	/* GPIO Desc for CRC based Panel control */
	struct gpio_desc *gpio_panel;

	struct intel_connector *attached_connector;

	/* bit mask of ports being driven */
	u16 ports;

	/* if true, use HS mode, otherwise LP */
	bool hs;

	/* virtual channel */
	int channel;

	/* Video mode or command mode */
	u16 operation_mode;

	/* number of DSI lanes */
	unsigned int lane_count;

	/*
	 * video mode pixel format
	 *
	 * XXX: consolidate on .format in struct mipi_dsi_device.
	 */
	enum mipi_dsi_pixel_format pixel_format;

	/* video mode format for MIPI_VIDEO_MODE_FORMAT register */
	u32 video_mode_format;

	/* eot for MIPI_EOT_DISABLE register */
	u8 eotp_pkt;
	u8 clock_stop;

	u8 escape_clk_div;
	u8 dual_link;

	u16 dcs_backlight_ports;
	u16 dcs_cabc_ports;

	u8 pixel_overlap;
	u32 port_bits;
	u32 bw_timer;
	u32 dphy_reg;
	u32 video_frmt_cfg_bits;
	u16 lp_byte_clk;

	/* timeouts in byte clocks */
	u16 lp_rx_timeout;
	u16 turn_arnd_val;
	u16 rst_timer_val;
	u16 hs_to_lp_count;
	u16 clk_lp_to_hs_count;
	u16 clk_hs_to_lp_count;

	u16 init_count;
	u32 pclk;
	u16 burst_mode_ratio;

	/* all delays in ms */
	u16 backlight_off_delay;
	u16 backlight_on_delay;
	u16 panel_on_delay;
	u16 panel_off_delay;
	u16 panel_pwr_cycle_delay;
};

struct intel_dsi_host {
	struct mipi_dsi_host base;
	struct intel_dsi *intel_dsi;
	enum port port;

	/* our little hack */
	struct mipi_dsi_device *device;
};

static inline struct intel_dsi_host *to_intel_dsi_host(struct mipi_dsi_host *h)
{
	return container_of(h, struct intel_dsi_host, base);
}

#define for_each_dsi_port(__port, __ports_mask) for_each_port_masked(__port, __ports_mask)

static inline struct intel_dsi *enc_to_intel_dsi(struct drm_encoder *encoder)
{
	return container_of(encoder, struct intel_dsi, base.base);
}

void wait_for_dsi_fifo_empty(struct intel_dsi *intel_dsi, enum port port);

void intel_dsi_exec_vbt_sequence(struct intel_dsi *intel_dsi,
				 enum mipi_seq seq_id);

bool intel_dsi_pll_is_enabled(struct drm_i915_private *dev_priv);
int intel_compute_dsi_pll(struct intel_encoder *encoder,
			  struct intel_crtc_state *config);
void intel_enable_dsi_pll(struct intel_encoder *encoder,
			  const struct intel_crtc_state *config);
void intel_disable_dsi_pll(struct intel_encoder *encoder);
u32 intel_dsi_get_pclk(struct intel_encoder *encoder, int pipe_bpp,
		       struct intel_crtc_state *config);
void intel_dsi_reset_clocks(struct intel_encoder *encoder,
			    enum port port);

struct drm_panel *intel_dsi_vbt_init(struct intel_dsi *intel_dsi, u16 panel_id);
int intel_dsi_vbt_get_modes(struct drm_panel *panel);
enum mipi_dsi_pixel_format pixel_format_from_register_bits(u32 fmt);

#endif /* _INTEL_DSI_H */
Commit	Line	Data
f5e11b06 JN	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>
7e9804fd	29	#include <drm/drm_mipi_dsi.h>
f5e11b06 JN	30	#include "intel_drv.h"
f5e11b06 JN	31
a9da9bce GS	32	/* Dual Link support */
	33	#define DSI_DUAL_LINK_NONE 0
	34	#define DSI_DUAL_LINK_FRONT_BACK 1
	35	#define DSI_DUAL_LINK_PIXEL_ALT 2
	36
7e9804fd JN	37	struct intel_dsi_host;
7e9804fd JN	38
f5e11b06 JN	39	struct intel_dsi {
	40	struct intel_encoder base;
	41
593e0622	42	struct drm_panel *panel;
7e9804fd	43	struct intel_dsi_host *dsi_hosts[I915_MAX_PORTS];
f5e11b06	44
fc45e821 SK	45	/* GPIO Desc for CRC based Panel control */
	46	struct gpio_desc *gpio_panel;
	47
f5e11b06 JN	48	struct intel_connector *attached_connector;
f5e11b06 JN	49
17af40a8 JN	50	/* bit mask of ports being driven */
	51	u16 ports;
	52
f5e11b06 JN	53	/* if true, use HS mode, otherwise LP */
	54	bool hs;
	55
	56	/* virtual channel */
	57	int channel;
	58
dfba2e2d SK	59	/* Video mode or command mode */
	60	u16 operation_mode;
	61
f5e11b06 JN	62	/* number of DSI lanes */
	63	unsigned int lane_count;
	64
1e78aa01 JN	65	/*
	66	* video mode pixel format
	67	*
	68	* XXX: consolidate on .format in struct mipi_dsi_device.
	69	*/
	70	enum mipi_dsi_pixel_format pixel_format;
f5e11b06 JN	71
	72	/* video mode format for MIPI_VIDEO_MODE_FORMAT register */
	73	u32 video_mode_format;
	74
	75	/* eot for MIPI_EOT_DISABLE register */
f1c79f16 SK	76	u8 eotp_pkt;
f1c79f16 SK	77	u8 clock_stop;
f6da2842	78
f1c79f16	79	u8 escape_clk_div;
369602d3	80	u8 dual_link;
90198355 JN	81
90198355 JN	82	u16 dcs_backlight_ports;
1ecc1c6c	83	u16 dcs_cabc_ports;
90198355	84
a9da9bce	85	u8 pixel_overlap;
f6da2842 SK	86	u32 port_bits;
	87	u32 bw_timer;
	88	u32 dphy_reg;
	89	u32 video_frmt_cfg_bits;
	90	u16 lp_byte_clk;
	91
	92	/* timeouts in byte clocks */
	93	u16 lp_rx_timeout;
	94	u16 turn_arnd_val;
	95	u16 rst_timer_val;
	96	u16 hs_to_lp_count;
	97	u16 clk_lp_to_hs_count;
	98	u16 clk_hs_to_lp_count;
cf4dbd2e SK	99
cf4dbd2e SK	100	u16 init_count;
7f0c8605 SK	101	u32 pclk;
7f0c8605 SK	102	u16 burst_mode_ratio;
df38e655 SK	103
	104	/* all delays in ms */
	105	u16 backlight_off_delay;
	106	u16 backlight_on_delay;
	107	u16 panel_on_delay;
	108	u16 panel_off_delay;
	109	u16 panel_pwr_cycle_delay;
f5e11b06 JN	110	};
f5e11b06 JN	111
7e9804fd JN	112	struct intel_dsi_host {
	113	struct mipi_dsi_host base;
	114	struct intel_dsi *intel_dsi;
	115	enum port port;
	116
	117	/* our little hack */
	118	struct mipi_dsi_device *device;
	119	};
	120
	121	static inline struct intel_dsi_host to_intel_dsi_host(struct mipi_dsi_host h)
	122	{
	123	return container_of(h, struct intel_dsi_host, base);
	124	}
	125
c3aeadc8	126	#define for_each_dsi_port(__port, __ports_mask) for_each_port_masked(__port, __ports_mask)
e7d7cad0	127
f5e11b06 JN	128	static inline struct intel_dsi enc_to_intel_dsi(struct drm_encoder encoder)
	129	{
	130	return container_of(encoder, struct intel_dsi, base.base);
	131	}
	132
3870b89a HG	133	void wait_for_dsi_fifo_empty(struct intel_dsi *intel_dsi, enum port port);
3870b89a HG	134
18a00095 HG	135	void intel_dsi_exec_vbt_sequence(struct intel_dsi *intel_dsi,
	136	enum mipi_seq seq_id);
	137
db18b6a6	138	bool intel_dsi_pll_is_enabled(struct drm_i915_private *dev_priv);
47eacbab VS	139	int intel_compute_dsi_pll(struct intel_encoder *encoder,
	140	struct intel_crtc_state *config);
	141	void intel_enable_dsi_pll(struct intel_encoder *encoder,
	142	const struct intel_crtc_state *config);
	143	void intel_disable_dsi_pll(struct intel_encoder *encoder);
	144	u32 intel_dsi_get_pclk(struct intel_encoder *encoder, int pipe_bpp,
	145	struct intel_crtc_state *config);
	146	void intel_dsi_reset_clocks(struct intel_encoder *encoder,
	147	enum port port);
be4fc046	148
7967ef6a	149	struct drm_panel intel_dsi_vbt_init(struct intel_dsi intel_dsi, u16 panel_id);
b9e56754	150	int intel_dsi_vbt_get_modes(struct drm_panel *panel);
43367ec9	151	enum mipi_dsi_pixel_format pixel_format_from_register_bits(u32 fmt);
2ab8b458	152
f5e11b06	153	#endif /* _INTEL_DSI_H */