[linux-2.6-block.git] / drivers / gpu / drm / msm / dsi / dsi.h

/*
 * Copyright (c) 2015, The Linux Foundation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#ifndef __DSI_CONNECTOR_H__
#define __DSI_CONNECTOR_H__

#include <linux/of_platform.h>
#include <linux/platform_device.h>

#include "drm_crtc.h"
#include "drm_mipi_dsi.h"
#include "drm_panel.h"

#include "msm_drv.h"

#define DSI_0	0
#define DSI_1	1
#define DSI_MAX	2

struct msm_dsi_phy_shared_timings;
struct msm_dsi_phy_clk_request;

enum msm_dsi_phy_type {
	MSM_DSI_PHY_28NM_HPM,
	MSM_DSI_PHY_28NM_LP,
	MSM_DSI_PHY_20NM,
	MSM_DSI_PHY_28NM_8960,
	MSM_DSI_PHY_MAX
};

enum msm_dsi_phy_usecase {
	MSM_DSI_PHY_STANDALONE,
	MSM_DSI_PHY_MASTER,
	MSM_DSI_PHY_SLAVE,
};

#define DSI_DEV_REGULATOR_MAX	8
#define DSI_BUS_CLK_MAX		4

/* Regulators for DSI devices */
struct dsi_reg_entry {
	char name[32];
	int enable_load;
	int disable_load;
};

struct dsi_reg_config {
	int num;
	struct dsi_reg_entry regs[DSI_DEV_REGULATOR_MAX];
};

struct msm_dsi {
	struct drm_device *dev;
	struct platform_device *pdev;

	/* connector managed by us when we're connected to a drm_panel */
	struct drm_connector *connector;
	/* internal dsi bridge attached to MDP interface */
	struct drm_bridge *bridge;

	struct mipi_dsi_host *host;
	struct msm_dsi_phy *phy;

	/*
	 * panel/external_bridge connected to dsi bridge output, only one of the
	 * two can be valid at a time
	 */
	struct drm_panel *panel;
	struct drm_bridge *external_bridge;
	unsigned long device_flags;

	struct device *phy_dev;
	bool phy_enabled;

	/* the encoder we are hooked to (outside of dsi block) */
	struct drm_encoder *encoder;

	int id;
};

/* dsi manager */
struct drm_bridge *msm_dsi_manager_bridge_init(u8 id);
void msm_dsi_manager_bridge_destroy(struct drm_bridge *bridge);
struct drm_connector *msm_dsi_manager_connector_init(u8 id);
struct drm_connector *msm_dsi_manager_ext_bridge_init(u8 id);
int msm_dsi_manager_cmd_xfer(int id, const struct mipi_dsi_msg *msg);
bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 dma_base, u32 len);
void msm_dsi_manager_attach_dsi_device(int id, u32 device_flags);
int msm_dsi_manager_register(struct msm_dsi *msm_dsi);
void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi);

/* msm dsi */
static inline bool msm_dsi_device_connected(struct msm_dsi *msm_dsi)
{
	return msm_dsi->panel || msm_dsi->external_bridge;
}

struct drm_encoder *msm_dsi_get_encoder(struct msm_dsi *msm_dsi);

/* dsi pll */
struct msm_dsi_pll;
#ifdef CONFIG_DRM_MSM_DSI_PLL
struct msm_dsi_pll *msm_dsi_pll_init(struct platform_device *pdev,
			enum msm_dsi_phy_type type, int dsi_id);
void msm_dsi_pll_destroy(struct msm_dsi_pll *pll);
int msm_dsi_pll_get_clk_provider(struct msm_dsi_pll *pll,
	struct clk **byte_clk_provider, struct clk **pixel_clk_provider);
void msm_dsi_pll_save_state(struct msm_dsi_pll *pll);
int msm_dsi_pll_restore_state(struct msm_dsi_pll *pll);
#else
static inline struct msm_dsi_pll *msm_dsi_pll_init(struct platform_device *pdev,
			 enum msm_dsi_phy_type type, int id) {
	return ERR_PTR(-ENODEV);
}
static inline void msm_dsi_pll_destroy(struct msm_dsi_pll *pll)
{
}
static inline int msm_dsi_pll_get_clk_provider(struct msm_dsi_pll *pll,
	struct clk **byte_clk_provider, struct clk **pixel_clk_provider)
{
	return -ENODEV;
}
static inline void msm_dsi_pll_save_state(struct msm_dsi_pll *pll)
{
}
static inline int msm_dsi_pll_restore_state(struct msm_dsi_pll *pll)
{
	return 0;
}
#endif

/* dsi host */
int msm_dsi_host_xfer_prepare(struct mipi_dsi_host *host,
					const struct mipi_dsi_msg *msg);
void msm_dsi_host_xfer_restore(struct mipi_dsi_host *host,
					const struct mipi_dsi_msg *msg);
int msm_dsi_host_cmd_tx(struct mipi_dsi_host *host,
					const struct mipi_dsi_msg *msg);
int msm_dsi_host_cmd_rx(struct mipi_dsi_host *host,
					const struct mipi_dsi_msg *msg);
void msm_dsi_host_cmd_xfer_commit(struct mipi_dsi_host *host,
					u32 dma_base, u32 len);
int msm_dsi_host_enable(struct mipi_dsi_host *host);
int msm_dsi_host_disable(struct mipi_dsi_host *host);
int msm_dsi_host_power_on(struct mipi_dsi_host *host,
			struct msm_dsi_phy_shared_timings *phy_shared_timings);
int msm_dsi_host_power_off(struct mipi_dsi_host *host);
int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host,
					struct drm_display_mode *mode);
struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host,
					unsigned long *panel_flags);
struct drm_bridge *msm_dsi_host_get_bridge(struct mipi_dsi_host *host);
int msm_dsi_host_register(struct mipi_dsi_host *host, bool check_defer);
void msm_dsi_host_unregister(struct mipi_dsi_host *host);
int msm_dsi_host_set_src_pll(struct mipi_dsi_host *host,
			struct msm_dsi_pll *src_pll);
void msm_dsi_host_reset_phy(struct mipi_dsi_host *host);
void msm_dsi_host_get_phy_clk_req(struct mipi_dsi_host *host,
	struct msm_dsi_phy_clk_request *clk_req);
void msm_dsi_host_destroy(struct mipi_dsi_host *host);
int msm_dsi_host_modeset_init(struct mipi_dsi_host *host,
					struct drm_device *dev);
int msm_dsi_host_init(struct msm_dsi *msm_dsi);

/* dsi phy */
struct msm_dsi_phy;
struct msm_dsi_phy_shared_timings {
	u32 clk_post;
	u32 clk_pre;
	bool clk_pre_inc_by_2;
};

struct msm_dsi_phy_clk_request {
	unsigned long bitclk_rate;
	unsigned long escclk_rate;
};

void msm_dsi_phy_driver_register(void);
void msm_dsi_phy_driver_unregister(void);
int msm_dsi_phy_enable(struct msm_dsi_phy *phy, int src_pll_id,
			struct msm_dsi_phy_clk_request *clk_req);
void msm_dsi_phy_disable(struct msm_dsi_phy *phy);
void msm_dsi_phy_get_shared_timings(struct msm_dsi_phy *phy,
			struct msm_dsi_phy_shared_timings *shared_timing);
struct msm_dsi_pll *msm_dsi_phy_get_pll(struct msm_dsi_phy *phy);
void msm_dsi_phy_set_usecase(struct msm_dsi_phy *phy,
			     enum msm_dsi_phy_usecase uc);

#endif /* __DSI_CONNECTOR_H__ */
Commit	Line	Data
a689554b HL	1	/*
	2	* Copyright (c) 2015, The Linux Foundation. All rights reserved.
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License version 2 and
	6	* only version 2 as published by the Free Software Foundation.
	7	*
	8	* This program is distributed in the hope that it will be useful,
	9	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	10	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	11	* GNU General Public License for more details.
	12	*/
	13
	14	#ifndef __DSI_CONNECTOR_H__
	15	#define __DSI_CONNECTOR_H__
	16
ec31abf6	17	#include <linux/of_platform.h>
a689554b HL	18	#include <linux/platform_device.h>
	19
	20	#include "drm_crtc.h"
	21	#include "drm_mipi_dsi.h"
	22	#include "drm_panel.h"
	23
	24	#include "msm_drv.h"
	25
	26	#define DSI_0 0
	27	#define DSI_1 1
	28	#define DSI_MAX 2
	29
dceac340	30	struct msm_dsi_phy_shared_timings;
b62aa70a	31	struct msm_dsi_phy_clk_request;
dceac340	32
9d32c498	33	enum msm_dsi_phy_type {
9d32c498 HL	34	MSM_DSI_PHY_28NM_HPM,
9d32c498 HL	35	MSM_DSI_PHY_28NM_LP,
dcefc117	36	MSM_DSI_PHY_20NM,
225380b3	37	MSM_DSI_PHY_28NM_8960,
9d32c498 HL	38	MSM_DSI_PHY_MAX
	39	};
	40
57bf4338 HL	41	enum msm_dsi_phy_usecase {
	42	MSM_DSI_PHY_STANDALONE,
	43	MSM_DSI_PHY_MASTER,
	44	MSM_DSI_PHY_SLAVE,
	45	};
	46
ec31abf6	47	#define DSI_DEV_REGULATOR_MAX 8
6e0eb52e	48	#define DSI_BUS_CLK_MAX 4
ec31abf6 HL	49
	50	/* Regulators for DSI devices */
	51	struct dsi_reg_entry {
	52	char name[32];
ec31abf6 HL	53	int enable_load;
	54	int disable_load;
	55	};
	56
	57	struct dsi_reg_config {
	58	int num;
	59	struct dsi_reg_entry regs[DSI_DEV_REGULATOR_MAX];
	60	};
	61
a689554b HL	62	struct msm_dsi {
	63	struct drm_device *dev;
	64	struct platform_device *pdev;
	65
c118e290	66	/* connector managed by us when we're connected to a drm_panel */
a689554b	67	struct drm_connector *connector;
c118e290	68	/* internal dsi bridge attached to MDP interface */
a689554b HL	69	struct drm_bridge *bridge;
	70
	71	struct mipi_dsi_host *host;
	72	struct msm_dsi_phy *phy;
c118e290 AT	73
	74	/*
	75	* panel/external_bridge connected to dsi bridge output, only one of the
	76	* two can be valid at a time
	77	*/
a689554b	78	struct drm_panel *panel;
c118e290	79	struct drm_bridge *external_bridge;
a9ddac9c	80	unsigned long device_flags;
9d32c498	81
ec31abf6	82	struct device *phy_dev;
a689554b HL	83	bool phy_enabled;
a689554b HL	84
97e00119 AT	85	/* the encoder we are hooked to (outside of dsi block) */
97e00119 AT	86	struct drm_encoder *encoder;
a689554b HL	87
	88	int id;
	89	};
	90
	91	/* dsi manager */
	92	struct drm_bridge *msm_dsi_manager_bridge_init(u8 id);
	93	void msm_dsi_manager_bridge_destroy(struct drm_bridge *bridge);
	94	struct drm_connector *msm_dsi_manager_connector_init(u8 id);
c118e290	95	struct drm_connector *msm_dsi_manager_ext_bridge_init(u8 id);
a689554b	96	int msm_dsi_manager_cmd_xfer(int id, const struct mipi_dsi_msg *msg);
4ff9d4cb	97	bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 dma_base, u32 len);
9c9f6f8d	98	void msm_dsi_manager_attach_dsi_device(int id, u32 device_flags);
a689554b HL	99	int msm_dsi_manager_register(struct msm_dsi *msm_dsi);
	100	void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi);
	101
	102	/* msm dsi */
6f054ec5 AT	103	static inline bool msm_dsi_device_connected(struct msm_dsi *msm_dsi)
6f054ec5 AT	104	{
c118e290	105	return msm_dsi->panel \|\| msm_dsi->external_bridge;
6f054ec5 AT	106	}
6f054ec5 AT	107
a689554b HL	108	struct drm_encoder msm_dsi_get_encoder(struct msm_dsi msm_dsi);
a689554b HL	109
9d32c498 HL	110	/* dsi pll */
	111	struct msm_dsi_pll;
	112	#ifdef CONFIG_DRM_MSM_DSI_PLL
	113	struct msm_dsi_pll msm_dsi_pll_init(struct platform_device pdev,
	114	enum msm_dsi_phy_type type, int dsi_id);
	115	void msm_dsi_pll_destroy(struct msm_dsi_pll *pll);
	116	int msm_dsi_pll_get_clk_provider(struct msm_dsi_pll *pll,
	117	struct clk byte_clk_provider, struct clk pixel_clk_provider);
328e1a63 HL	118	void msm_dsi_pll_save_state(struct msm_dsi_pll *pll);
328e1a63 HL	119	int msm_dsi_pll_restore_state(struct msm_dsi_pll *pll);
9d32c498 HL	120	#else
	121	static inline struct msm_dsi_pll msm_dsi_pll_init(struct platform_device pdev,
	122	enum msm_dsi_phy_type type, int id) {
	123	return ERR_PTR(-ENODEV);
	124	}
	125	static inline void msm_dsi_pll_destroy(struct msm_dsi_pll *pll)
	126	{
	127	}
	128	static inline int msm_dsi_pll_get_clk_provider(struct msm_dsi_pll *pll,
	129	struct clk byte_clk_provider, struct clk pixel_clk_provider)
	130	{
	131	return -ENODEV;
	132	}
328e1a63 HL	133	static inline void msm_dsi_pll_save_state(struct msm_dsi_pll *pll)
	134	{
	135	}
	136	static inline int msm_dsi_pll_restore_state(struct msm_dsi_pll *pll)
	137	{
	138	return 0;
	139	}
9d32c498 HL	140	#endif
9d32c498 HL	141
a689554b HL	142	/* dsi host */
	143	int msm_dsi_host_xfer_prepare(struct mipi_dsi_host *host,
	144	const struct mipi_dsi_msg *msg);
	145	void msm_dsi_host_xfer_restore(struct mipi_dsi_host *host,
	146	const struct mipi_dsi_msg *msg);
	147	int msm_dsi_host_cmd_tx(struct mipi_dsi_host *host,
	148	const struct mipi_dsi_msg *msg);
	149	int msm_dsi_host_cmd_rx(struct mipi_dsi_host *host,
	150	const struct mipi_dsi_msg *msg);
	151	void msm_dsi_host_cmd_xfer_commit(struct mipi_dsi_host *host,
4ff9d4cb	152	u32 dma_base, u32 len);
a689554b HL	153	int msm_dsi_host_enable(struct mipi_dsi_host *host);
a689554b HL	154	int msm_dsi_host_disable(struct mipi_dsi_host *host);
b62aa70a HL	155	int msm_dsi_host_power_on(struct mipi_dsi_host *host,
b62aa70a HL	156	struct msm_dsi_phy_shared_timings *phy_shared_timings);
a689554b HL	157	int msm_dsi_host_power_off(struct mipi_dsi_host *host);
	158	int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host,
	159	struct drm_display_mode *mode);
	160	struct drm_panel msm_dsi_host_get_panel(struct mipi_dsi_host host,
	161	unsigned long *panel_flags);
c118e290	162	struct drm_bridge msm_dsi_host_get_bridge(struct mipi_dsi_host host);
a689554b HL	163	int msm_dsi_host_register(struct mipi_dsi_host *host, bool check_defer);
a689554b HL	164	void msm_dsi_host_unregister(struct mipi_dsi_host *host);
9d32c498 HL	165	int msm_dsi_host_set_src_pll(struct mipi_dsi_host *host,
9d32c498 HL	166	struct msm_dsi_pll *src_pll);
34d9545b	167	void msm_dsi_host_reset_phy(struct mipi_dsi_host *host);
b62aa70a HL	168	void msm_dsi_host_get_phy_clk_req(struct mipi_dsi_host *host,
b62aa70a HL	169	struct msm_dsi_phy_clk_request *clk_req);
a689554b HL	170	void msm_dsi_host_destroy(struct mipi_dsi_host *host);
	171	int msm_dsi_host_modeset_init(struct mipi_dsi_host *host,
	172	struct drm_device *dev);
	173	int msm_dsi_host_init(struct msm_dsi *msm_dsi);
	174
	175	/* dsi phy */
	176	struct msm_dsi_phy;
dceac340 HL	177	struct msm_dsi_phy_shared_timings {
	178	u32 clk_post;
	179	u32 clk_pre;
	180	bool clk_pre_inc_by_2;
	181	};
b62aa70a HL	182
	183	struct msm_dsi_phy_clk_request {
	184	unsigned long bitclk_rate;
	185	unsigned long escclk_rate;
	186	};
	187
ec31abf6 HL	188	void msm_dsi_phy_driver_register(void);
ec31abf6 HL	189	void msm_dsi_phy_driver_unregister(void);
13351cd1	190	int msm_dsi_phy_enable(struct msm_dsi_phy *phy, int src_pll_id,
b62aa70a	191	struct msm_dsi_phy_clk_request *clk_req);
29e61690	192	void msm_dsi_phy_disable(struct msm_dsi_phy *phy);
dceac340 HL	193	void msm_dsi_phy_get_shared_timings(struct msm_dsi_phy *phy,
dceac340 HL	194	struct msm_dsi_phy_shared_timings *shared_timing);
9d32c498	195	struct msm_dsi_pll msm_dsi_phy_get_pll(struct msm_dsi_phy phy);
57bf4338 HL	196	void msm_dsi_phy_set_usecase(struct msm_dsi_phy *phy,
57bf4338 HL	197	enum msm_dsi_phy_usecase uc);
9d32c498	198
a689554b HL	199	#endif /* __DSI_CONNECTOR_H__ */
a689554b HL	200