[mirror_ubuntu-bionic-kernel.git] / include / drm / drm_mipi_dsi.h

/*
 * MIPI DSI Bus
 *
 * Copyright (C) 2012-2013, Samsung Electronics, Co., Ltd.
 * Andrzej Hajda <a.hajda@samsung.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#ifndef __DRM_MIPI_DSI_H__
#define __DRM_MIPI_DSI_H__

#include <linux/device.h>

struct mipi_dsi_host;
struct mipi_dsi_device;

/* request ACK from peripheral */
#define MIPI_DSI_MSG_REQ_ACK	BIT(0)
/* use Low Power Mode to transmit message */
#define MIPI_DSI_MSG_USE_LPM	BIT(1)

/**
 * struct mipi_dsi_msg - read/write DSI buffer
 * @channel: virtual channel id
 * @type: payload data type
 * @flags: flags controlling this message transmission
 * @tx_len: length of @tx_buf
 * @tx_buf: data to be written
 * @rx_len: length of @rx_buf
 * @rx_buf: data to be read, or NULL
 */
struct mipi_dsi_msg {
	u8 channel;
	u8 type;
	u16 flags;

	size_t tx_len;
	const void *tx_buf;

	size_t rx_len;
	void *rx_buf;
};

bool mipi_dsi_packet_format_is_short(u8 type);
bool mipi_dsi_packet_format_is_long(u8 type);

/**
 * struct mipi_dsi_packet - represents a MIPI DSI packet in protocol format
 * @size: size (in bytes) of the packet
 * @header: the four bytes that make up the header (Data ID, Word Count or
 *     Packet Data, and ECC)
 * @payload_length: number of bytes in the payload
 * @payload: a pointer to a buffer containing the payload, if any
 */
struct mipi_dsi_packet {
	size_t size;
	u8 header[4];
	size_t payload_length;
	const u8 *payload;
};

int mipi_dsi_create_packet(struct mipi_dsi_packet *packet,
			   const struct mipi_dsi_msg *msg);

/**
 * struct mipi_dsi_host_ops - DSI bus operations
 * @attach: attach DSI device to DSI host
 * @detach: detach DSI device from DSI host
 * @transfer: transmit a DSI packet
 *
 * DSI packets transmitted by .transfer() are passed in as mipi_dsi_msg
 * structures. This structure contains information about the type of packet
 * being transmitted as well as the transmit and receive buffers. When an
 * error is encountered during transmission, this function will return a
 * negative error code. On success it shall return the number of bytes
 * transmitted for write packets or the number of bytes received for read
 * packets.
 *
 * Note that typically DSI packet transmission is atomic, so the .transfer()
 * function will seldomly return anything other than the number of bytes
 * contained in the transmit buffer on success.
 */
struct mipi_dsi_host_ops {
	int (*attach)(struct mipi_dsi_host *host,
		      struct mipi_dsi_device *dsi);
	int (*detach)(struct mipi_dsi_host *host,
		      struct mipi_dsi_device *dsi);
	ssize_t (*transfer)(struct mipi_dsi_host *host,
			    const struct mipi_dsi_msg *msg);
};

/**
 * struct mipi_dsi_host - DSI host device
 * @dev: driver model device node for this DSI host
 * @ops: DSI host operations
 * @list: list management
 */
struct mipi_dsi_host {
	struct device *dev;
	const struct mipi_dsi_host_ops *ops;
	struct list_head list;
};

int mipi_dsi_host_register(struct mipi_dsi_host *host);
void mipi_dsi_host_unregister(struct mipi_dsi_host *host);
struct mipi_dsi_host *of_find_mipi_dsi_host_by_node(struct device_node *node);

/* DSI mode flags */

/* video mode */
#define MIPI_DSI_MODE_VIDEO		BIT(0)
/* video burst mode */
#define MIPI_DSI_MODE_VIDEO_BURST	BIT(1)
/* video pulse mode */
#define MIPI_DSI_MODE_VIDEO_SYNC_PULSE	BIT(2)
/* enable auto vertical count mode */
#define MIPI_DSI_MODE_VIDEO_AUTO_VERT	BIT(3)
/* enable hsync-end packets in vsync-pulse and v-porch area */
#define MIPI_DSI_MODE_VIDEO_HSE		BIT(4)
/* disable hfront-porch area */
#define MIPI_DSI_MODE_VIDEO_HFP		BIT(5)
/* disable hback-porch area */
#define MIPI_DSI_MODE_VIDEO_HBP		BIT(6)
/* disable hsync-active area */
#define MIPI_DSI_MODE_VIDEO_HSA		BIT(7)
/* flush display FIFO on vsync pulse */
#define MIPI_DSI_MODE_VSYNC_FLUSH	BIT(8)
/* disable EoT packets in HS mode */
#define MIPI_DSI_MODE_EOT_PACKET	BIT(9)
/* device supports non-continuous clock behavior (DSI spec 5.6.1) */
#define MIPI_DSI_CLOCK_NON_CONTINUOUS	BIT(10)
/* transmit data in low power */
#define MIPI_DSI_MODE_LPM		BIT(11)

enum mipi_dsi_pixel_format {
	MIPI_DSI_FMT_RGB888,
	MIPI_DSI_FMT_RGB666,
	MIPI_DSI_FMT_RGB666_PACKED,
	MIPI_DSI_FMT_RGB565,
};

#define DSI_DEV_NAME_SIZE		20

/**
 * struct mipi_dsi_device_info - template for creating a mipi_dsi_device
 * @type: DSI peripheral chip type
 * @channel: DSI virtual channel assigned to peripheral
 * @node: pointer to OF device node or NULL
 *
 * This is populated and passed to mipi_dsi_device_new to create a new
 * DSI device
 */
struct mipi_dsi_device_info {
	char type[DSI_DEV_NAME_SIZE];
	u32 channel;
	struct device_node *node;
};

/**
 * struct mipi_dsi_device - DSI peripheral device
 * @host: DSI host for this peripheral
 * @dev: driver model device node for this peripheral
 * @name: DSI peripheral chip type
 * @channel: virtual channel assigned to the peripheral
 * @format: pixel format for video mode
 * @lanes: number of active data lanes
 * @mode_flags: DSI operation mode related flags
 */
struct mipi_dsi_device {
	struct mipi_dsi_host *host;
	struct device dev;

	char name[DSI_DEV_NAME_SIZE];
	unsigned int channel;
	unsigned int lanes;
	enum mipi_dsi_pixel_format format;
	unsigned long mode_flags;
};

#define MIPI_DSI_MODULE_PREFIX "mipi-dsi:"

static inline struct mipi_dsi_device *to_mipi_dsi_device(struct device *dev)
{
	return container_of(dev, struct mipi_dsi_device, dev);
}

/**
 * mipi_dsi_pixel_format_to_bpp - obtain the number of bits per pixel for any
 *                                given pixel format defined by the MIPI DSI
 *                                specification
 * @fmt: MIPI DSI pixel format
 *
 * Returns: The number of bits per pixel of the given pixel format.
 */
static inline int mipi_dsi_pixel_format_to_bpp(enum mipi_dsi_pixel_format fmt)
{
	switch (fmt) {
	case MIPI_DSI_FMT_RGB888:
	case MIPI_DSI_FMT_RGB666:
		return 24;

	case MIPI_DSI_FMT_RGB666_PACKED:
		return 18;

	case MIPI_DSI_FMT_RGB565:
		return 16;
	}

	return -EINVAL;
}

struct mipi_dsi_device *
mipi_dsi_device_register_full(struct mipi_dsi_host *host,
			      const struct mipi_dsi_device_info *info);
void mipi_dsi_device_unregister(struct mipi_dsi_device *dsi);
struct mipi_dsi_device *of_find_mipi_dsi_device_by_node(struct device_node *np);
int mipi_dsi_attach(struct mipi_dsi_device *dsi);
int mipi_dsi_detach(struct mipi_dsi_device *dsi);
int mipi_dsi_shutdown_peripheral(struct mipi_dsi_device *dsi);
int mipi_dsi_turn_on_peripheral(struct mipi_dsi_device *dsi);
int mipi_dsi_set_maximum_return_packet_size(struct mipi_dsi_device *dsi,
					    u16 value);

ssize_t mipi_dsi_generic_write(struct mipi_dsi_device *dsi, const void *payload,
			       size_t size);
ssize_t mipi_dsi_generic_read(struct mipi_dsi_device *dsi, const void *params,
			      size_t num_params, void *data, size_t size);

/**
 * enum mipi_dsi_dcs_tear_mode - Tearing Effect Output Line mode
 * @MIPI_DSI_DCS_TEAR_MODE_VBLANK: the TE output line consists of V-Blanking
 *    information only
 * @MIPI_DSI_DCS_TEAR_MODE_VHBLANK : the TE output line consists of both
 *    V-Blanking and H-Blanking information
 */
enum mipi_dsi_dcs_tear_mode {
	MIPI_DSI_DCS_TEAR_MODE_VBLANK,
	MIPI_DSI_DCS_TEAR_MODE_VHBLANK,
};

#define MIPI_DSI_DCS_POWER_MODE_DISPLAY (1 << 2)
#define MIPI_DSI_DCS_POWER_MODE_NORMAL  (1 << 3)
#define MIPI_DSI_DCS_POWER_MODE_SLEEP   (1 << 4)
#define MIPI_DSI_DCS_POWER_MODE_PARTIAL (1 << 5)
#define MIPI_DSI_DCS_POWER_MODE_IDLE    (1 << 6)

ssize_t mipi_dsi_dcs_write_buffer(struct mipi_dsi_device *dsi,
				  const void *data, size_t len);
ssize_t mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, u8 cmd,
			   const void *data, size_t len);
ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data,
			  size_t len);
int mipi_dsi_dcs_nop(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_soft_reset(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_get_power_mode(struct mipi_dsi_device *dsi, u8 *mode);
int mipi_dsi_dcs_get_pixel_format(struct mipi_dsi_device *dsi, u8 *format);
int mipi_dsi_dcs_enter_sleep_mode(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_exit_sleep_mode(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_set_display_off(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_set_display_on(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_set_column_address(struct mipi_dsi_device *dsi, u16 start,
				    u16 end);
int mipi_dsi_dcs_set_page_address(struct mipi_dsi_device *dsi, u16 start,
				  u16 end);
int mipi_dsi_dcs_set_tear_off(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_set_tear_on(struct mipi_dsi_device *dsi,
			     enum mipi_dsi_dcs_tear_mode mode);
int mipi_dsi_dcs_set_pixel_format(struct mipi_dsi_device *dsi, u8 format);
int mipi_dsi_dcs_set_tear_scanline(struct mipi_dsi_device *dsi, u16 scanline);
int mipi_dsi_dcs_set_display_brightness(struct mipi_dsi_device *dsi,
					u16 brightness);
int mipi_dsi_dcs_get_display_brightness(struct mipi_dsi_device *dsi,
					u16 *brightness);

/**
 * struct mipi_dsi_driver - DSI driver
 * @driver: device driver model driver
 * @probe: callback for device binding
 * @remove: callback for device unbinding
 * @shutdown: called at shutdown time to quiesce the device
 */
struct mipi_dsi_driver {
	struct device_driver driver;
	int(*probe)(struct mipi_dsi_device *dsi);
	int(*remove)(struct mipi_dsi_device *dsi);
	void (*shutdown)(struct mipi_dsi_device *dsi);
};

static inline struct mipi_dsi_driver *
to_mipi_dsi_driver(struct device_driver *driver)
{
	return container_of(driver, struct mipi_dsi_driver, driver);
}

static inline void *mipi_dsi_get_drvdata(const struct mipi_dsi_device *dsi)
{
	return dev_get_drvdata(&dsi->dev);
}

static inline void mipi_dsi_set_drvdata(struct mipi_dsi_device *dsi, void *data)
{
	dev_set_drvdata(&dsi->dev, data);
}

int mipi_dsi_driver_register_full(struct mipi_dsi_driver *driver,
				  struct module *owner);
void mipi_dsi_driver_unregister(struct mipi_dsi_driver *driver);

#define mipi_dsi_driver_register(driver) \
	mipi_dsi_driver_register_full(driver, THIS_MODULE)

#define module_mipi_dsi_driver(__mipi_dsi_driver) \
	module_driver(__mipi_dsi_driver, mipi_dsi_driver_register, \
			mipi_dsi_driver_unregister)

#endif /* __DRM_MIPI_DSI__ */
Commit	Line	Data
068a0023 AH	1	/*
	2	* MIPI DSI Bus
	3	*
	4	* Copyright (C) 2012-2013, Samsung Electronics, Co., Ltd.
	5	* Andrzej Hajda <a.hajda@samsung.com>
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License version 2 as
	9	* published by the Free Software Foundation.
	10	*/
	11
	12	#ifndef __DRM_MIPI_DSI_H__
	13	#define __DRM_MIPI_DSI_H__
	14
	15	#include <linux/device.h>
	16
	17	struct mipi_dsi_host;
	18	struct mipi_dsi_device;
	19
1d96d4a6 AH	20	/* request ACK from peripheral */
	21	#define MIPI_DSI_MSG_REQ_ACK BIT(0)
	22	/* use Low Power Mode to transmit message */
	23	#define MIPI_DSI_MSG_USE_LPM BIT(1)
	24
068a0023 AH	25	/**
	26	* struct mipi_dsi_msg - read/write DSI buffer
	27	* @channel: virtual channel id
	28	* @type: payload data type
009081e0	29	* @flags: flags controlling this message transmission
068a0023 AH	30	* @tx_len: length of @tx_buf
	31	* @tx_buf: data to be written
	32	* @rx_len: length of @rx_buf
	33	* @rx_buf: data to be read, or NULL
	34	*/
	35	struct mipi_dsi_msg {
	36	u8 channel;
	37	u8 type;
1d96d4a6	38	u16 flags;
068a0023 AH	39
	40	size_t tx_len;
	41	const void *tx_buf;
	42
	43	size_t rx_len;
	44	void *rx_buf;
	45	};
	46
02acb76d TR	47	bool mipi_dsi_packet_format_is_short(u8 type);
	48	bool mipi_dsi_packet_format_is_long(u8 type);
	49
a52879e8 TR	50	/**
	51	* struct mipi_dsi_packet - represents a MIPI DSI packet in protocol format
	52	* @size: size (in bytes) of the packet
	53	* @header: the four bytes that make up the header (Data ID, Word Count or
	54	* Packet Data, and ECC)
	55	* @payload_length: number of bytes in the payload
	56	* @payload: a pointer to a buffer containing the payload, if any
	57	*/
	58	struct mipi_dsi_packet {
	59	size_t size;
	60	u8 header[4];
	61	size_t payload_length;
	62	const u8 *payload;
	63	};
	64
	65	int mipi_dsi_create_packet(struct mipi_dsi_packet *packet,
	66	const struct mipi_dsi_msg *msg);
	67
068a0023 AH	68	/**
	69	* struct mipi_dsi_host_ops - DSI bus operations
	70	* @attach: attach DSI device to DSI host
	71	* @detach: detach DSI device from DSI host
009081e0 TR	72	* @transfer: transmit a DSI packet
	73	*
	74	* DSI packets transmitted by .transfer() are passed in as mipi_dsi_msg
	75	* structures. This structure contains information about the type of packet
	76	* being transmitted as well as the transmit and receive buffers. When an
	77	* error is encountered during transmission, this function will return a
	78	* negative error code. On success it shall return the number of bytes
	79	* transmitted for write packets or the number of bytes received for read
	80	* packets.
	81	*
	82	* Note that typically DSI packet transmission is atomic, so the .transfer()
	83	* function will seldomly return anything other than the number of bytes
	84	* contained in the transmit buffer on success.
068a0023 AH	85	*/
	86	struct mipi_dsi_host_ops {
	87	int (attach)(struct mipi_dsi_host host,
	88	struct mipi_dsi_device *dsi);
	89	int (detach)(struct mipi_dsi_host host,
	90	struct mipi_dsi_device *dsi);
	91	ssize_t (transfer)(struct mipi_dsi_host host,
ed6ff40e	92	const struct mipi_dsi_msg *msg);
068a0023 AH	93	};
	94
	95	/**
	96	* struct mipi_dsi_host - DSI host device
	97	* @dev: driver model device node for this DSI host
	98	* @ops: DSI host operations
97b6ae50	99	* @list: list management
068a0023 AH	100	*/
	101	struct mipi_dsi_host {
	102	struct device *dev;
	103	const struct mipi_dsi_host_ops *ops;
97b6ae50	104	struct list_head list;
068a0023 AH	105	};
	106
	107	int mipi_dsi_host_register(struct mipi_dsi_host *host);
	108	void mipi_dsi_host_unregister(struct mipi_dsi_host *host);
97b6ae50	109	struct mipi_dsi_host of_find_mipi_dsi_host_by_node(struct device_node node);
068a0023 AH	110
	111	/* DSI mode flags */
	112
	113	/* video mode */
	114	#define MIPI_DSI_MODE_VIDEO BIT(0)
	115	/* video burst mode */
	116	#define MIPI_DSI_MODE_VIDEO_BURST BIT(1)
	117	/* video pulse mode */
	118	#define MIPI_DSI_MODE_VIDEO_SYNC_PULSE BIT(2)
	119	/* enable auto vertical count mode */
	120	#define MIPI_DSI_MODE_VIDEO_AUTO_VERT BIT(3)
	121	/* enable hsync-end packets in vsync-pulse and v-porch area */
	122	#define MIPI_DSI_MODE_VIDEO_HSE BIT(4)
	123	/* disable hfront-porch area */
	124	#define MIPI_DSI_MODE_VIDEO_HFP BIT(5)
	125	/* disable hback-porch area */
	126	#define MIPI_DSI_MODE_VIDEO_HBP BIT(6)
	127	/* disable hsync-active area */
	128	#define MIPI_DSI_MODE_VIDEO_HSA BIT(7)
	129	/* flush display FIFO on vsync pulse */
	130	#define MIPI_DSI_MODE_VSYNC_FLUSH BIT(8)
	131	/* disable EoT packets in HS mode */
	132	#define MIPI_DSI_MODE_EOT_PACKET BIT(9)
884d6a0b AC	133	/* device supports non-continuous clock behavior (DSI spec 5.6.1) */
884d6a0b AC	134	#define MIPI_DSI_CLOCK_NON_CONTINUOUS BIT(10)
d87f09ab ID	135	/* transmit data in low power */
d87f09ab ID	136	#define MIPI_DSI_MODE_LPM BIT(11)
068a0023 AH	137
	138	enum mipi_dsi_pixel_format {
	139	MIPI_DSI_FMT_RGB888,
	140	MIPI_DSI_FMT_RGB666,
	141	MIPI_DSI_FMT_RGB666_PACKED,
	142	MIPI_DSI_FMT_RGB565,
	143	};
	144
bf4363ce AT	145	#define DSI_DEV_NAME_SIZE 20
	146
	147	/**
c63ae8a9	148	* struct mipi_dsi_device_info - template for creating a mipi_dsi_device
bf4363ce	149	* @type: DSI peripheral chip type
c63ae8a9	150	* @channel: DSI virtual channel assigned to peripheral
bf4363ce	151	* @node: pointer to OF device node or NULL
c63ae8a9 AT	152	*
	153	* This is populated and passed to mipi_dsi_device_new to create a new
	154	* DSI device
	155	*/
	156	struct mipi_dsi_device_info {
bf4363ce	157	char type[DSI_DEV_NAME_SIZE];
c63ae8a9 AT	158	u32 channel;
	159	struct device_node *node;
	160	};
	161
068a0023 AH	162	/**
	163	* struct mipi_dsi_device - DSI peripheral device
	164	* @host: DSI host for this peripheral
	165	* @dev: driver model device node for this peripheral
bf4363ce	166	* @name: DSI peripheral chip type
068a0023 AH	167	* @channel: virtual channel assigned to the peripheral
	168	* @format: pixel format for video mode
	169	* @lanes: number of active data lanes
	170	* @mode_flags: DSI operation mode related flags
	171	*/
	172	struct mipi_dsi_device {
	173	struct mipi_dsi_host *host;
	174	struct device dev;
	175
bf4363ce	176	char name[DSI_DEV_NAME_SIZE];
068a0023 AH	177	unsigned int channel;
	178	unsigned int lanes;
	179	enum mipi_dsi_pixel_format format;
	180	unsigned long mode_flags;
	181	};
	182
babb24fe TR	183	#define MIPI_DSI_MODULE_PREFIX "mipi-dsi:"
babb24fe TR	184
77df01dc TR	185	static inline struct mipi_dsi_device to_mipi_dsi_device(struct device dev)
	186	{
	187	return container_of(dev, struct mipi_dsi_device, dev);
	188	}
068a0023	189
ec26d9e9 LY	190	/**
	191	* mipi_dsi_pixel_format_to_bpp - obtain the number of bits per pixel for any
	192	* given pixel format defined by the MIPI DSI
	193	* specification
	194	* @fmt: MIPI DSI pixel format
	195	*
	196	* Returns: The number of bits per pixel of the given pixel format.
	197	*/
	198	static inline int mipi_dsi_pixel_format_to_bpp(enum mipi_dsi_pixel_format fmt)
	199	{
	200	switch (fmt) {
	201	case MIPI_DSI_FMT_RGB888:
	202	case MIPI_DSI_FMT_RGB666:
	203	return 24;
	204
	205	case MIPI_DSI_FMT_RGB666_PACKED:
	206	return 18;
	207
	208	case MIPI_DSI_FMT_RGB565:
	209	return 16;
	210	}
	211
	212	return -EINVAL;
	213	}
	214
c63ae8a9 AT	215	struct mipi_dsi_device *
	216	mipi_dsi_device_register_full(struct mipi_dsi_host *host,
	217	const struct mipi_dsi_device_info *info);
509e42ce	218	void mipi_dsi_device_unregister(struct mipi_dsi_device *dsi);
3ef05924	219	struct mipi_dsi_device of_find_mipi_dsi_device_by_node(struct device_node np);
068a0023 AH	220	int mipi_dsi_attach(struct mipi_dsi_device *dsi);
068a0023 AH	221	int mipi_dsi_detach(struct mipi_dsi_device *dsi);
6e8c9e33 WJ	222	int mipi_dsi_shutdown_peripheral(struct mipi_dsi_device *dsi);
6e8c9e33 WJ	223	int mipi_dsi_turn_on_peripheral(struct mipi_dsi_device *dsi);
dbf30b69 YC	224	int mipi_dsi_set_maximum_return_packet_size(struct mipi_dsi_device *dsi,
dbf30b69 YC	225	u16 value);
550ab848 TR	226
	227	ssize_t mipi_dsi_generic_write(struct mipi_dsi_device dsi, const void payload,
	228	size_t size);
	229	ssize_t mipi_dsi_generic_read(struct mipi_dsi_device dsi, const void params,
	230	size_t num_params, void *data, size_t size);
	231
42fe1e75 YC	232	/**
	233	* enum mipi_dsi_dcs_tear_mode - Tearing Effect Output Line mode
	234	* @MIPI_DSI_DCS_TEAR_MODE_VBLANK: the TE output line consists of V-Blanking
	235	* information only
	236	* @MIPI_DSI_DCS_TEAR_MODE_VHBLANK : the TE output line consists of both
	237	* V-Blanking and H-Blanking information
	238	*/
	239	enum mipi_dsi_dcs_tear_mode {
	240	MIPI_DSI_DCS_TEAR_MODE_VBLANK,
	241	MIPI_DSI_DCS_TEAR_MODE_VHBLANK,
	242	};
	243
3d9a8fcf TR	244	#define MIPI_DSI_DCS_POWER_MODE_DISPLAY (1 << 2)
	245	#define MIPI_DSI_DCS_POWER_MODE_NORMAL (1 << 3)
	246	#define MIPI_DSI_DCS_POWER_MODE_SLEEP (1 << 4)
	247	#define MIPI_DSI_DCS_POWER_MODE_PARTIAL (1 << 5)
	248	#define MIPI_DSI_DCS_POWER_MODE_IDLE (1 << 6)
	249
960dd616 TR	250	ssize_t mipi_dsi_dcs_write_buffer(struct mipi_dsi_device *dsi,
	251	const void *data, size_t len);
	252	ssize_t mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, u8 cmd,
	253	const void *data, size_t len);
3c523d7d TR	254	ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device dsi, u8 cmd, void data,
3c523d7d TR	255	size_t len);
083d573f	256	int mipi_dsi_dcs_nop(struct mipi_dsi_device *dsi);
2f16b897	257	int mipi_dsi_dcs_soft_reset(struct mipi_dsi_device *dsi);
3d9a8fcf	258	int mipi_dsi_dcs_get_power_mode(struct mipi_dsi_device dsi, u8 mode);
5cc0af16	259	int mipi_dsi_dcs_get_pixel_format(struct mipi_dsi_device dsi, u8 format);
42fe1e75 YC	260	int mipi_dsi_dcs_enter_sleep_mode(struct mipi_dsi_device *dsi);
	261	int mipi_dsi_dcs_exit_sleep_mode(struct mipi_dsi_device *dsi);
	262	int mipi_dsi_dcs_set_display_off(struct mipi_dsi_device *dsi);
	263	int mipi_dsi_dcs_set_display_on(struct mipi_dsi_device *dsi);
3b46d4a0 TR	264	int mipi_dsi_dcs_set_column_address(struct mipi_dsi_device *dsi, u16 start,
	265	u16 end);
	266	int mipi_dsi_dcs_set_page_address(struct mipi_dsi_device *dsi, u16 start,
	267	u16 end);
42fe1e75 YC	268	int mipi_dsi_dcs_set_tear_off(struct mipi_dsi_device *dsi);
	269	int mipi_dsi_dcs_set_tear_on(struct mipi_dsi_device *dsi,
	270	enum mipi_dsi_dcs_tear_mode mode);
5cc0af16	271	int mipi_dsi_dcs_set_pixel_format(struct mipi_dsi_device *dsi, u8 format);
bbdcf516	272	int mipi_dsi_dcs_set_tear_scanline(struct mipi_dsi_device *dsi, u16 scanline);
1a9d7593 VSB	273	int mipi_dsi_dcs_set_display_brightness(struct mipi_dsi_device *dsi,
	274	u16 brightness);
	275	int mipi_dsi_dcs_get_display_brightness(struct mipi_dsi_device *dsi,
	276	u16 *brightness);
068a0023 AH	277
	278	/**
	279	* struct mipi_dsi_driver - DSI driver
	280	* @driver: device driver model driver
	281	* @probe: callback for device binding
	282	* @remove: callback for device unbinding
d1621803	283	* @shutdown: called at shutdown time to quiesce the device
068a0023 AH	284	*/
	285	struct mipi_dsi_driver {
	286	struct device_driver driver;
	287	int(probe)(struct mipi_dsi_device dsi);
	288	int(remove)(struct mipi_dsi_device dsi);
d1621803	289	void (shutdown)(struct mipi_dsi_device dsi);
068a0023 AH	290	};
068a0023 AH	291
77df01dc TR	292	static inline struct mipi_dsi_driver *
	293	to_mipi_dsi_driver(struct device_driver *driver)
	294	{
	295	return container_of(driver, struct mipi_dsi_driver, driver);
	296	}
068a0023 AH	297
	298	static inline void mipi_dsi_get_drvdata(const struct mipi_dsi_device dsi)
	299	{
	300	return dev_get_drvdata(&dsi->dev);
	301	}
	302
	303	static inline void mipi_dsi_set_drvdata(struct mipi_dsi_device dsi, void data)
	304	{
	305	dev_set_drvdata(&dsi->dev, data);
	306	}
	307
99035e99 TR	308	int mipi_dsi_driver_register_full(struct mipi_dsi_driver *driver,
99035e99 TR	309	struct module *owner);
068a0023 AH	310	void mipi_dsi_driver_unregister(struct mipi_dsi_driver *driver);
068a0023 AH	311
99035e99 TR	312	#define mipi_dsi_driver_register(driver) \
	313	mipi_dsi_driver_register_full(driver, THIS_MODULE)
	314
068a0023 AH	315	#define module_mipi_dsi_driver(__mipi_dsi_driver) \
	316	module_driver(__mipi_dsi_driver, mipi_dsi_driver_register, \
	317	mipi_dsi_driver_unregister)
	318
	319	#endif /* __DRM_MIPI_DSI__ */