[deliverable/linux.git] / drivers / staging / olpc_dcon / olpc_dcon.h

#ifndef OLPC_DCON_H_
#define OLPC_DCON_H_

#include <linux/notifier.h>
#include <linux/workqueue.h>

/* DCON registers */

#define DCON_REG_ID		 0
#define DCON_REG_MODE		 1

#define MODE_PASSTHRU	(1<<0)
#define MODE_SLEEP	(1<<1)
#define MODE_SLEEP_AUTO	(1<<2)
#define MODE_BL_ENABLE	(1<<3)
#define MODE_BLANK	(1<<4)
#define MODE_CSWIZZLE	(1<<5)
#define MODE_COL_AA	(1<<6)
#define MODE_MONO_LUMA	(1<<7)
#define MODE_SCAN_INT	(1<<8)
#define MODE_CLOCKDIV	(1<<9)
#define MODE_DEBUG	(1<<14)
#define MODE_SELFTEST	(1<<15)

#define DCON_REG_HRES		0x2
#define DCON_REG_HTOTAL		0x3
#define DCON_REG_HSYNC_WIDTH	0x4
#define DCON_REG_VRES		0x5
#define DCON_REG_VTOTAL		0x6
#define DCON_REG_VSYNC_WIDTH	0x7
#define DCON_REG_TIMEOUT	0x8
#define DCON_REG_SCAN_INT	0x9
#define DCON_REG_BRIGHT		0xa
#define DCON_REG_MEM_OPT_A	0x41
#define DCON_REG_MEM_OPT_B	0x42

/* Load Delay Locked Loop (DLL) settings for clock delay */
#define MEM_DLL_CLOCK_DELAY	(1<<0)
/* Memory controller power down function */
#define MEM_POWER_DOWN		(1<<8)
/* Memory controller software reset */
#define MEM_SOFT_RESET		(1<<0)

/* Status values */

#define DCONSTAT_SCANINT	0
#define DCONSTAT_SCANINT_DCON	1
#define DCONSTAT_DISPLAYLOAD	2
#define DCONSTAT_MISSED		3

/* Source values */

#define DCON_SOURCE_DCON        0
#define DCON_SOURCE_CPU         1

/* Interrupt */
#define DCON_IRQ                6

struct dcon_priv {
	struct i2c_client *client;
	struct fb_info *fbinfo;
	struct backlight_device *bl_dev;

	wait_queue_head_t waitq;
	struct work_struct switch_source;
	struct notifier_block reboot_nb;

	/* Shadow register for the DCON_REG_MODE register */
	u8 disp_mode;

	/* The current backlight value - this saves us some smbus traffic */
	u8 bl_val;

	/* Current source, initialized at probe time */
	int curr_src;

	/* Desired source */
	int pending_src;

	/* Variables used during switches */
	bool switched;
	struct timespec irq_time;
	struct timespec load_time;

	/* Current output type; true == mono, false == color */
	bool mono;
	bool asleep;
	/* This get set while controlling fb blank state from the driver */
	bool ignore_fb_events;
};

struct dcon_platform_data {
	int (*init)(struct dcon_priv *);
	void (*bus_stabilize_wiggle)(void);
	void (*set_dconload)(int);
	int (*read_status)(u8 *);
};

#include <linux/interrupt.h>

extern irqreturn_t dcon_interrupt(int irq, void *id);

#ifdef CONFIG_FB_OLPC_DCON_1
extern struct dcon_platform_data dcon_pdata_xo_1;
#endif

#ifdef CONFIG_FB_OLPC_DCON_1_5
extern struct dcon_platform_data dcon_pdata_xo_1_5;
#endif

#endif
Commit	Line	Data
eecb3e4e AS	1	#ifndef OLPC_DCON_H_
	2	#define OLPC_DCON_H_
	3
bbe963f1 AS	4	#include <linux/notifier.h>
	5	#include <linux/workqueue.h>
	6
eecb3e4e AS	7	/* DCON registers */
	8
	9	#define DCON_REG_ID 0
	10	#define DCON_REG_MODE 1
	11
	12	#define MODE_PASSTHRU (1<<0)
	13	#define MODE_SLEEP (1<<1)
	14	#define MODE_SLEEP_AUTO (1<<2)
	15	#define MODE_BL_ENABLE (1<<3)
	16	#define MODE_BLANK (1<<4)
	17	#define MODE_CSWIZZLE (1<<5)
	18	#define MODE_COL_AA (1<<6)
	19	#define MODE_MONO_LUMA (1<<7)
	20	#define MODE_SCAN_INT (1<<8)
	21	#define MODE_CLOCKDIV (1<<9)
	22	#define MODE_DEBUG (1<<14)
	23	#define MODE_SELFTEST (1<<15)
	24
98d4f93c JF	25	#define DCON_REG_HRES 0x2
	26	#define DCON_REG_HTOTAL 0x3
	27	#define DCON_REG_HSYNC_WIDTH 0x4
	28	#define DCON_REG_VRES 0x5
	29	#define DCON_REG_VTOTAL 0x6
	30	#define DCON_REG_VSYNC_WIDTH 0x7
	31	#define DCON_REG_TIMEOUT 0x8
	32	#define DCON_REG_SCAN_INT 0x9
9467d11b	33	#define DCON_REG_BRIGHT 0xa
98d4f93c JF	34	#define DCON_REG_MEM_OPT_A 0x41
	35	#define DCON_REG_MEM_OPT_B 0x42
	36
	37	/* Load Delay Locked Loop (DLL) settings for clock delay */
	38	#define MEM_DLL_CLOCK_DELAY (1<<0)
	39	/* Memory controller power down function */
55567349	40	#define MEM_POWER_DOWN (1<<8)
98d4f93c JF	41	/* Memory controller software reset */
98d4f93c JF	42	#define MEM_SOFT_RESET (1<<0)
eecb3e4e	43
eecb3e4e AS	44	/* Status values */
	45
	46	#define DCONSTAT_SCANINT 0
	47	#define DCONSTAT_SCANINT_DCON 1
	48	#define DCONSTAT_DISPLAYLOAD 2
	49	#define DCONSTAT_MISSED 3
	50
	51	/* Source values */
	52
	53	#define DCON_SOURCE_DCON 0
	54	#define DCON_SOURCE_CPU 1
	55
eecb3e4e AS	56	/* Interrupt */
	57	#define DCON_IRQ 6
	58
bbe963f1 AS	59	struct dcon_priv {
	60	struct i2c_client *client;
	61	struct fb_info *fbinfo;
c59eef17	62	struct backlight_device *bl_dev;
bbe963f1	63
c40f20da	64	wait_queue_head_t waitq;
bbe963f1 AS	65	struct work_struct switch_source;
bbe963f1 AS	66	struct notifier_block reboot_nb;
bbe963f1 AS	67
	68	/* Shadow register for the DCON_REG_MODE register */
	69	u8 disp_mode;
	70
c59eef17 AS	71	/* The current backlight value - this saves us some smbus traffic */
	72	u8 bl_val;
	73
bbe963f1 AS	74	/* Current source, initialized at probe time */
	75	int curr_src;
	76
	77	/* Desired source */
	78	int pending_src;
	79
309ef2a2 AS	80	/* Variables used during switches */
	81	bool switched;
	82	struct timespec irq_time;
	83	struct timespec load_time;
	84
bbe963f1 AS	85	/* Current output type; true == mono, false == color */
	86	bool mono;
	87	bool asleep;
	88	/* This get set while controlling fb blank state from the driver */
	89	bool ignore_fb_events;
	90	};
	91
097cd83a	92	struct dcon_platform_data {
bbe963f1	93	int (init)(struct dcon_priv );
097cd83a AS	94	void (*bus_stabilize_wiggle)(void);
097cd83a AS	95	void (*set_dconload)(int);
91762057	96	int (read_status)(u8 );
097cd83a AS	97	};
	98
	99	#include <linux/interrupt.h>
	100
097cd83a	101	extern irqreturn_t dcon_interrupt(int irq, void *id);
097cd83a AS	102
	103	#ifdef CONFIG_FB_OLPC_DCON_1
	104	extern struct dcon_platform_data dcon_pdata_xo_1;
	105	#endif
	106
	107	#ifdef CONFIG_FB_OLPC_DCON_1_5
	108	extern struct dcon_platform_data dcon_pdata_xo_1_5;
	109	#endif
	110
eecb3e4e	111	#endif