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u-boot/arch/arm/mach-exynos/include/mach/mipi_dsim.h
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2012 Samsung Electronics
*
* Author: InKi Dae <inki.dae@samsung.com>
* Author: Donghwa Lee <dh09.lee@samsung.com>
*/
#ifndef _DSIM_H
#define _DSIM_H
#include <linux/list.h>
#include <linux/fb.h>
#include <lcd.h>
#define PANEL_NAME_SIZE (32)
enum mipi_dsim_interface_type {
DSIM_COMMAND,
DSIM_VIDEO
};
enum mipi_dsim_virtual_ch_no {
DSIM_VIRTUAL_CH_0,
DSIM_VIRTUAL_CH_1,
DSIM_VIRTUAL_CH_2,
DSIM_VIRTUAL_CH_3
};
enum mipi_dsim_burst_mode_type {
DSIM_NON_BURST_SYNC_EVENT,
DSIM_BURST_SYNC_EVENT,
DSIM_NON_BURST_SYNC_PULSE,
DSIM_BURST,
DSIM_NON_VIDEO_MODE
};
enum mipi_dsim_no_of_data_lane {
DSIM_DATA_LANE_1,
DSIM_DATA_LANE_2,
DSIM_DATA_LANE_3,
DSIM_DATA_LANE_4
};
enum mipi_dsim_byte_clk_src {
DSIM_PLL_OUT_DIV8,
DSIM_EXT_CLK_DIV8,
DSIM_EXT_CLK_BYPASS
};
enum mipi_dsim_pixel_format {
DSIM_CMD_3BPP,
DSIM_CMD_8BPP,
DSIM_CMD_12BPP,
DSIM_CMD_16BPP,
DSIM_VID_16BPP_565,
DSIM_VID_18BPP_666PACKED,
DSIM_18BPP_666LOOSELYPACKED,
DSIM_24BPP_888
};
/* MIPI DSI Processor-to-Peripheral transaction types */
enum {
MIPI_DSI_V_SYNC_START = 0x01,
MIPI_DSI_V_SYNC_END = 0x11,
MIPI_DSI_H_SYNC_START = 0x21,
MIPI_DSI_H_SYNC_END = 0x31,
MIPI_DSI_COLOR_MODE_OFF = 0x02,
MIPI_DSI_COLOR_MODE_ON = 0x12,
MIPI_DSI_SHUTDOWN_PERIPHERAL = 0x22,
MIPI_DSI_TURN_ON_PERIPHERAL = 0x32,
MIPI_DSI_GENERIC_SHORT_WRITE_0_PARAM = 0x03,
MIPI_DSI_GENERIC_SHORT_WRITE_1_PARAM = 0x13,
MIPI_DSI_GENERIC_SHORT_WRITE_2_PARAM = 0x23,
MIPI_DSI_GENERIC_READ_REQUEST_0_PARAM = 0x04,
MIPI_DSI_GENERIC_READ_REQUEST_1_PARAM = 0x14,
MIPI_DSI_GENERIC_READ_REQUEST_2_PARAM = 0x24,
MIPI_DSI_DCS_SHORT_WRITE = 0x05,
MIPI_DSI_DCS_SHORT_WRITE_PARAM = 0x15,
MIPI_DSI_DCS_READ = 0x06,
MIPI_DSI_SET_MAXIMUM_RETURN_PACKET_SIZE = 0x37,
MIPI_DSI_END_OF_TRANSMISSION = 0x08,
MIPI_DSI_NULL_PACKET = 0x09,
MIPI_DSI_BLANKING_PACKET = 0x19,
MIPI_DSI_GENERIC_LONG_WRITE = 0x29,
MIPI_DSI_DCS_LONG_WRITE = 0x39,
MIPI_DSI_LOOSELY_PACKED_PIXEL_STREAM_YCBCR20 = 0x0c,
MIPI_DSI_PACKED_PIXEL_STREAM_YCBCR24 = 0x1c,
MIPI_DSI_PACKED_PIXEL_STREAM_YCBCR16 = 0x2c,
MIPI_DSI_PACKED_PIXEL_STREAM_30 = 0x0d,
MIPI_DSI_PACKED_PIXEL_STREAM_36 = 0x1d,
MIPI_DSI_PACKED_PIXEL_STREAM_YCBCR12 = 0x3d,
MIPI_DSI_PACKED_PIXEL_STREAM_16 = 0x0e,
MIPI_DSI_PACKED_PIXEL_STREAM_18 = 0x1e,
MIPI_DSI_PIXEL_STREAM_3BYTE_18 = 0x2e,
MIPI_DSI_PACKED_PIXEL_STREAM_24 = 0x3e,
};
/*
* struct mipi_dsim_config - interface for configuring mipi-dsi controller.
*
* @auto_flush: enable or disable Auto flush of MD FIFO using VSYNC pulse.
* @eot_disable: enable or disable EoT packet in HS mode.
* @auto_vertical_cnt: specifies auto vertical count mode.
* in Video mode, the vertical line transition uses line counter
* configured by VSA, VBP, and Vertical resolution.
* If this bit is set to '1', the line counter does not use VSA and VBP
* registers.(in command mode, this variable is ignored)
* @hse: set horizontal sync event mode.
* In VSYNC pulse and Vporch area, MIPI DSI master transfers only HSYNC
* start packet to MIPI DSI slave at MIPI DSI spec1.1r02.
* this bit transfers HSYNC end packet in VSYNC pulse and Vporch area
* (in mommand mode, this variable is ignored)
* @hfp: specifies HFP disable mode.
* if this variable is set, DSI master ignores HFP area in VIDEO mode.
* (in command mode, this variable is ignored)
* @hbp: specifies HBP disable mode.
* if this variable is set, DSI master ignores HBP area in VIDEO mode.
* (in command mode, this variable is ignored)
* @hsa: specifies HSA disable mode.
* if this variable is set, DSI master ignores HSA area in VIDEO mode.
* (in command mode, this variable is ignored)
* @e_interface: specifies interface to be used.(CPU or RGB interface)
* @e_virtual_ch: specifies virtual channel number that main or
* sub diaplsy uses.
* @e_pixel_format: specifies pixel stream format for main or sub display.
* @e_burst_mode: selects Burst mode in Video mode.
* in Non-burst mode, RGB data area is filled with RGB data and NULL
* packets, according to input bandwidth of RGB interface.
* In Burst mode, RGB data area is filled with RGB data only.
* @e_no_data_lane: specifies data lane count to be used by Master.
* @e_byte_clk: select byte clock source. (it must be DSIM_PLL_OUT_DIV8)
* DSIM_EXT_CLK_DIV8 and DSIM_EXT_CLK_BYPASSS are not supported.
* @pll_stable_time: specifies the PLL Timer for stability of the ganerated
* clock(System clock cycle base)
* if the timer value goes to 0x00000000, the clock stable bit of status
* and interrupt register is set.
* @esc_clk: specifies escape clock frequency for getting the escape clock
* prescaler value.
* @stop_holding_cnt: specifies the interval value between transmitting
* read packet(or write "set_tear_on" command) and BTA request.
* after transmitting read packet or write "set_tear_on" command,
* BTA requests to D-PHY automatically. this counter value specifies
* the interval between them.
* @bta_timeout: specifies the timer for BTA.
* this register specifies time out from BTA request to change
* the direction with respect to Tx escape clock.
* @rx_timeout: specifies the timer for LP Rx mode timeout.
* this register specifies time out on how long RxValid deasserts,
* after RxLpdt asserts with respect to Tx escape clock.
* - RxValid specifies Rx data valid indicator.
* - RxLpdt specifies an indicator that D-PHY is under RxLpdt mode.
* - RxValid and RxLpdt specifies signal from D-PHY.
*/
struct mipi_dsim_config {
unsigned char auto_flush;
unsigned char eot_disable;
unsigned char auto_vertical_cnt;
unsigned char hse;
unsigned char hfp;
unsigned char hbp;
unsigned char hsa;
enum mipi_dsim_interface_type e_interface;
enum mipi_dsim_virtual_ch_no e_virtual_ch;
enum mipi_dsim_pixel_format e_pixel_format;
enum mipi_dsim_burst_mode_type e_burst_mode;
enum mipi_dsim_no_of_data_lane e_no_data_lane;
enum mipi_dsim_byte_clk_src e_byte_clk;
/*
* ===========================================
* | P | M | S | MHz |
* -------------------------------------------
* | 3 | 100 | 3 | 100 |
* | 3 | 100 | 2 | 200 |
* | 3 | 63 | 1 | 252 |
* | 4 | 100 | 1 | 300 |
* | 4 | 110 | 1 | 330 |
* | 12 | 350 | 1 | 350 |
* | 3 | 100 | 1 | 400 |
* | 4 | 150 | 1 | 450 |
* | 6 | 118 | 1 | 472 |
* | 3 | 120 | 1 | 480 |
* | 12 | 250 | 0 | 500 |
* | 4 | 100 | 0 | 600 |
* | 3 | 81 | 0 | 648 |
* | 3 | 88 | 0 | 704 |
* | 3 | 90 | 0 | 720 |
* | 3 | 100 | 0 | 800 |
* | 12 | 425 | 0 | 850 |
* | 4 | 150 | 0 | 900 |
* | 12 | 475 | 0 | 950 |
* | 6 | 250 | 0 | 1000 |
* -------------------------------------------
*/
/*
* pms could be calculated as the following.
* M * 24 / P * 2 ^ S = MHz
*/
unsigned char p;
unsigned short m;
unsigned char s;
unsigned int pll_stable_time;
unsigned long esc_clk;
unsigned short stop_holding_cnt;
unsigned char bta_timeout;
unsigned short rx_timeout;
};
/*
* struct mipi_dsim_device - global interface for mipi-dsi driver.
*
* @dsim_config: infomation for configuring mipi-dsi controller.
* @master_ops: callbacks to mipi-dsi operations.
* @dsim_lcd_dev: pointer to activated ddi device.
* (it would be registered by mipi-dsi driver.)
* @dsim_lcd_drv: pointer to activated_ddi driver.
* (it would be registered by mipi-dsi driver.)
* @state: specifies status of MIPI-DSI controller.
* the status could be RESET, INIT, STOP, HSCLKEN and ULPS.
* @data_lane: specifiec enabled data lane number.
* this variable would be set by driver according to e_no_data_lane
* automatically.
* @e_clk_src: select byte clock source.
* @pd: pointer to MIPI-DSI driver platform data.
*/
struct mipi_dsim_device {
struct mipi_dsim_config *dsim_config;
struct mipi_dsim_master_ops *master_ops;
struct mipi_dsim_lcd_device *dsim_lcd_dev;
struct mipi_dsim_lcd_driver *dsim_lcd_drv;
unsigned int state;
unsigned int data_lane;
enum mipi_dsim_byte_clk_src e_clk_src;
struct exynos_platform_mipi_dsim *pd;
};
/*
* struct exynos_platform_mipi_dsim - interface to platform data
* for mipi-dsi driver.
*
* @lcd_panel_name: specifies lcd panel name registered to mipi-dsi driver.
* lcd panel driver searched would be actived.
* @dsim_config: pointer of structure for configuring mipi-dsi controller.
* @lcd_panel_info: pointer for lcd panel specific structure.
* this structure specifies width, height, timing and polarity and so on.
* @lcd_power: callback pointer for enabling or disabling lcd power.
* @mipi_power: callback pointer for enabling or disabling mipi power.
* @phy_enable: pointer to a callback controlling D-PHY enable/reset
*/
struct exynos_platform_mipi_dsim {
char lcd_panel_name[PANEL_NAME_SIZE];
struct mipi_dsim_config *dsim_config;
void *lcd_panel_info;
int (*lcd_power)(void);
int (*mipi_power)(void);
void (*phy_enable)(unsigned int dev_index, unsigned int enable);
};
/*
* struct mipi_dsim_master_ops - callbacks to mipi-dsi operations.
*
* @cmd_write: transfer command to lcd panel at LP mode.
* @cmd_read: read command from rx register.
* @get_dsim_frame_done: get the status that all screen data have been
* transferred to mipi-dsi.
* @clear_dsim_frame_done: clear frame done status.
* @get_fb_frame_done: get frame done status of display controller.
* @trigger: trigger display controller.
* - this one would be used only in case of CPU mode.
*/
struct mipi_dsim_master_ops {
int (*cmd_write)(struct mipi_dsim_device *dsim, unsigned int data_id,
const unsigned char *data0, unsigned int data1);
int (*cmd_read)(struct mipi_dsim_device *dsim, unsigned int data_id,
unsigned int data0, unsigned int data1);
int (*get_dsim_frame_done)(struct mipi_dsim_device *dsim);
int (*clear_dsim_frame_done)(struct mipi_dsim_device *dsim);
int (*get_fb_frame_done)(void);
void (*trigger)(struct fb_info *info);
};
/*
* device structure for mipi-dsi based lcd panel.
*
* @name: name of the device to use with this device, or an
* alias for that name.
* @id: id of device to be registered.
* @bus_id: bus id for identifing connected bus
* and this bus id should be same as id of mipi_dsim_device.
* @master: pointer to mipi-dsi master device object.
* @platform_data: lcd panel specific platform data.
*/
struct mipi_dsim_lcd_device {
char *name;
int id;
int bus_id;
int reverse_panel;
struct mipi_dsim_device *master;
struct exynos_platform_mipi_dsim *platform_data;
};
/*
* driver structure for mipi-dsi based lcd panel.
*
* this structure should be registered by lcd panel driver.
* mipi-dsi driver seeks lcd panel registered through name field
* and calls these callback functions in appropriate time.
*
* @name: name of the driver to use with this device, or an
* alias for that name.
* @id: id of driver to be registered.
* this id would be used for finding device object registered.
* @mipi_panel_init: callback pointer for initializing lcd panel based on mipi
* dsi interface.
* @mipi_display_on: callback pointer for lcd panel display on.
*/
struct mipi_dsim_lcd_driver {
char *name;
int id;
int (*mipi_panel_init)(struct mipi_dsim_device *dsim_dev);
void (*mipi_display_on)(struct mipi_dsim_device *dsim_dev);
};
#ifdef CONFIG_EXYNOS_MIPI_DSIM
int exynos_mipi_dsi_init(struct exynos_platform_mipi_dsim *dsim_pd);
#else
static inline int exynos_mipi_dsi_init(
struct exynos_platform_mipi_dsim *dsim_pd)
{
return 0;
}
#endif
/*
* register mipi_dsim_lcd_driver object defined by lcd panel driver
* to mipi-dsi driver.
*/
int exynos_mipi_dsi_register_lcd_driver(struct mipi_dsim_lcd_driver
*lcd_drv);
/*
* register mipi_dsim_lcd_device to mipi-dsi master.
*/
int exynos_mipi_dsi_register_lcd_device(struct mipi_dsim_lcd_device
*lcd_dev);
void exynos_set_dsim_platform_data(struct exynos_platform_mipi_dsim *pd);
struct vidinfo;
void exynos_init_dsim_platform_data(struct vidinfo *vid);
/* panel driver init based on mipi dsi interface */
void s6e8ax0_init(void);
extern int mipi_power(void);
#endif /* _DSIM_H */
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