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Commit 2c8304d3 authored by Heiko Stübner's avatar Heiko Stübner Committed by Florian Tobias Schandinat
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video: auo_k190x: add code shared by controller drivers 



The AUO-K190X controllers share a very similar set of commands and
can therefore also share most of the driver code.

Signed-off-by: default avatarHeiko Stübner <heiko@sntech.de>
Signed-off-by: default avatarFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>
parent 1f45f9db

drivers/video/Kconfig

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@@ -2382,6 +2382,23 @@ config FB_BROADSHEET 
	  and could also have been called by other names when coupled with

	  a bridge adapter.



config FB_AUO_K190X

	tristate "AUO-K190X EPD controller support"

	depends on FB

	select FB_SYS_FILLRECT

	select FB_SYS_COPYAREA

	select FB_SYS_IMAGEBLIT

	select FB_SYS_FOPS

	select FB_DEFERRED_IO

	help

	  Provides support for epaper controllers from the K190X series

	  of AUO. These controllers can be used to drive epaper displays

	  from Sipix.



	  This option enables the common support, shared by the individual

	  controller drivers. You will also have to enable the driver

	  for the controller type used in your device.



config FB_JZ4740

	tristate "JZ4740 LCD framebuffer support"

	depends on FB && MACH_JZ4740

drivers/video/Makefile

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@@ -118,6 +118,7 @@ obj-$(CONFIG_FB_PMAGB_B) += pmagb-b-fb.o 
obj-$(CONFIG_FB_MAXINE)		  += maxinefb.o

obj-$(CONFIG_FB_METRONOME)        += metronomefb.o

obj-$(CONFIG_FB_BROADSHEET)       += broadsheetfb.o

obj-$(CONFIG_FB_AUO_K190X)	  += auo_k190x.o

obj-$(CONFIG_FB_S1D13XXX)	  += s1d13xxxfb.o

obj-$(CONFIG_FB_SH7760)		  += sh7760fb.o

obj-$(CONFIG_FB_IMX)              += imxfb.o

drivers/video/auo_k190x.c

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File added.

Preview size limit exceeded, changes collapsed.

drivers/video/auo_k190x.h

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/*

 * Private common definitions for AUO-K190X framebuffer drivers

 *

 * Copyright (C) 2012 Heiko Stuebner <heiko@sntech.de>

 *

 * 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.

 */



/*

 * I80 interface specific defines

 */



#define AUOK190X_I80_CS			0x01

#define AUOK190X_I80_DC			0x02

#define AUOK190X_I80_WR			0x03

#define AUOK190X_I80_OE			0x04



/*

 * AUOK190x commands, common to both controllers

 */



#define AUOK190X_CMD_INIT		0x0000

#define AUOK190X_CMD_STANDBY		0x0001

#define AUOK190X_CMD_WAKEUP		0x0002

#define AUOK190X_CMD_TCON_RESET		0x0003

#define AUOK190X_CMD_DATA_STOP		0x1002

#define AUOK190X_CMD_LUT_START		0x1003

#define AUOK190X_CMD_DISP_REFRESH	0x1004

#define AUOK190X_CMD_DISP_RESET		0x1005

#define AUOK190X_CMD_PRE_DISPLAY_START	0x100D

#define AUOK190X_CMD_PRE_DISPLAY_STOP	0x100F

#define AUOK190X_CMD_FLASH_W		0x2000

#define AUOK190X_CMD_FLASH_E		0x2001

#define AUOK190X_CMD_FLASH_STS		0x2002

#define AUOK190X_CMD_FRAMERATE		0x3000

#define AUOK190X_CMD_READ_VERSION	0x4000

#define AUOK190X_CMD_READ_STATUS	0x4001

#define AUOK190X_CMD_READ_LUT		0x4003

#define AUOK190X_CMD_DRIVERTIMING	0x5000

#define AUOK190X_CMD_LBALANCE		0x5001

#define AUOK190X_CMD_AGINGMODE		0x6000

#define AUOK190X_CMD_AGINGEXIT		0x6001



/*

 * Common settings for AUOK190X_CMD_INIT

 */



#define AUOK190X_INIT_DATA_FILTER	(0 << 12)

#define AUOK190X_INIT_DATA_BYPASS	(1 << 12)

#define AUOK190X_INIT_INVERSE_WHITE	(0 << 9)

#define AUOK190X_INIT_INVERSE_BLACK	(1 << 9)

#define AUOK190X_INIT_SCAN_DOWN		(0 << 1)

#define AUOK190X_INIT_SCAN_UP		(1 << 1)

#define AUOK190X_INIT_SHIFT_LEFT	(0 << 0)

#define AUOK190X_INIT_SHIFT_RIGHT	(1 << 0)



/* Common bits to pixels

 *   Mode	15-12	11-8	7-4	3-0

 *   format0	4	3	2	1

 *   format1	3	4	1	2

 */



#define AUOK190X_INIT_FORMAT0		0

#define AUOK190X_INIT_FORMAT1		(1 << 6)



/*

 * settings for AUOK190X_CMD_RESET

 */



#define AUOK190X_RESET_TCON		(0 << 0)

#define AUOK190X_RESET_NORMAL		(1 << 0)

#define AUOK190X_RESET_PON		(1 << 1)



/*

 * AUOK190X_CMD_VERSION

 */



#define AUOK190X_VERSION_TEMP_MASK		(0x1ff)

#define AUOK190X_VERSION_EPD_MASK		(0xff)

#define AUOK190X_VERSION_SIZE_INT(_val)		((_val & 0xfc00) >> 10)

#define AUOK190X_VERSION_SIZE_FLOAT(_val)	((_val & 0x3c0) >> 6)

#define AUOK190X_VERSION_MODEL(_val)		(_val & 0x3f)

#define AUOK190X_VERSION_LUT(_val)		(_val & 0xff)

#define AUOK190X_VERSION_TCON(_val)		((_val & 0xff00) >> 8)



/*

 * update modes for CMD_PARTIALDISP on K1900 and CMD_DDMA on K1901

 */



#define AUOK190X_UPDATE_MODE(_res)		((_res & 0x7) << 12)

#define AUOK190X_UPDATE_NONFLASH		(1 << 15)



/*

 * track panel specific parameters for common init

 */



struct auok190x_init_data {

	char *id;

	struct auok190x_board *board;



	void (*update_partial)(struct auok190xfb_par *par, u16 y1, u16 y2);

	void (*update_all)(struct auok190xfb_par *par);

	bool (*need_refresh)(struct auok190xfb_par *par);

	void (*init)(struct auok190xfb_par *par);

};





extern void auok190x_send_command_nowait(struct auok190xfb_par *par, u16 data);

extern int auok190x_send_command(struct auok190xfb_par *par, u16 data);

extern void auok190x_send_cmdargs_nowait(struct auok190xfb_par *par, u16 cmd,

					 int argc, u16 *argv);

extern int auok190x_send_cmdargs(struct auok190xfb_par *par, u16 cmd,

				  int argc, u16 *argv);

extern void auok190x_send_cmdargs_pixels_nowait(struct auok190xfb_par *par,

						u16 cmd, int argc, u16 *argv,

						int size, u16 *data);

extern int auok190x_send_cmdargs_pixels(struct auok190xfb_par *par, u16 cmd,

					int argc, u16 *argv, int size,

					u16 *data);

extern int auok190x_read_cmdargs(struct auok190xfb_par *par, u16 cmd,

				  int argc, u16 *argv);



extern int auok190x_common_probe(struct platform_device *pdev,

				 struct auok190x_init_data *init);

extern int auok190x_common_remove(struct platform_device *pdev);



extern const struct dev_pm_ops auok190x_pm;

include/video/auo_k190xfb.h

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/*

 * Definitions for AUO-K190X framebuffer drivers

 *

 * Copyright (C) 2012 Heiko Stuebner <heiko@sntech.de>

 *

 * 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 _LINUX_VIDEO_AUO_K190XFB_H_

#define _LINUX_VIDEO_AUO_K190XFB_H_



/* Controller standby command needs a param */

#define AUOK190X_QUIRK_STANDBYPARAM	(1 << 0)



/* Controller standby is completely broken */

#define AUOK190X_QUIRK_STANDBYBROKEN	(1 << 1)



/*

 * Resolutions for the displays

 */

#define AUOK190X_RESOLUTION_800_600		0

#define AUOK190X_RESOLUTION_1024_768		1



/*

 * struct used by auok190x. board specific stuff comes from *board

 */

struct auok190xfb_par {

	struct fb_info *info;

	struct auok190x_board *board;



	struct regulator *regulator;



	struct mutex io_lock;

	struct delayed_work work;

	wait_queue_head_t waitq;

	int resolution;

	int rotation;

	int consecutive_threshold;

	int update_cnt;



	/* panel and controller informations */

	int epd_type;

	int panel_size_int;

	int panel_size_float;

	int panel_model;

	int tcon_version;

	int lut_version;



	/* individual controller callbacks */

	void (*update_partial)(struct auok190xfb_par *par, u16 y1, u16 y2);

	void (*update_all)(struct auok190xfb_par *par);

	bool (*need_refresh)(struct auok190xfb_par *par);

	void (*init)(struct auok190xfb_par *par);

	void (*recover)(struct auok190xfb_par *par);



	int update_mode; /* mode to use for updates */

	int last_mode; /* update mode last used */

	int flash;



	/* power management */

	int autosuspend_delay;

	bool standby;

	bool manual_standby;

};



/**

 * Board specific platform-data

 * @init:		initialize the controller interface

 * @cleanup:		cleanup the controller interface

 * @wait_for_rdy:	wait until the controller is not busy anymore

 * @set_ctl:		change an interface control

 * @set_hdb:		write a value to the data register

 * @get_hdb:		read a value from the data register

 * @setup_irq:		method to setup the irq handling on the busy gpio

 * @gpio_nsleep:	sleep gpio

 * @gpio_nrst:		reset gpio

 * @gpio_nbusy:		busy gpio

 * @resolution:		one of the AUOK190X_RESOLUTION constants

 * @rotation:		rotation of the framebuffer

 * @quirks:		controller quirks to honor

 * @fps:		frames per second for defio

 */

struct auok190x_board {

	int (*init)(struct auok190xfb_par *);

	void (*cleanup)(struct auok190xfb_par *);

	int (*wait_for_rdy)(struct auok190xfb_par *);



	void (*set_ctl)(struct auok190xfb_par *, unsigned char, u8);

	void (*set_hdb)(struct auok190xfb_par *, u16);

	u16 (*get_hdb)(struct auok190xfb_par *);



	int (*setup_irq)(struct fb_info *);



	int gpio_nsleep;

	int gpio_nrst;

	int gpio_nbusy;



	int resolution;

	int rotation;

	int quirks;

	int fps;

};



#endif