misc: Move panel driver out of staging

Move panel driver from drivers/staging/panel to drivers/misc.

Signed-off-by: Ksenija Stanojevic <ksenija.stanojevic@gmail.com>
Acked-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 0 insertions, 2445 deletions

diff --git a/drivers/staging/panel/panel.c b/drivers/staging/panel/panel.c
deleted file mode 100644
index 4262db0237f9..000000000000
--- a/drivers/staging/panel/panel.c
+++ /dev/null
@@ -1,2445 +0,0 @@
-/*
- * Front panel driver for Linux
- * Copyright (C) 2000-2008, Willy Tarreau <w@1wt.eu>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * This code drives an LCD module (/dev/lcd), and a keypad (/dev/keypad)
- * connected to a parallel printer port.
- *
- * The LCD module may either be an HD44780-like 8-bit parallel LCD, or a 1-bit
- * serial module compatible with Samsung's KS0074. The pins may be connected in
- * any combination, everything is programmable.
- *
- * The keypad consists in a matrix of push buttons connecting input pins to
- * data output pins or to the ground. The combinations have to be hard-coded
- * in the driver, though several profiles exist and adding new ones is easy.
- *
- * Several profiles are provided for commonly found LCD+keypad modules on the
- * market, such as those found in Nexcom's appliances.
- *
- * FIXME:
- *      - the initialization/deinitialization process is very dirty and should
- *        be rewritten. It may even be buggy.
- *
- * TODO:
- *	- document 24 keys keyboard (3 rows of 8 cols, 32 diodes + 2 inputs)
- *      - make the LCD a part of a virtual screen of Vx*Vy
- *	- make the inputs list smp-safe
- *      - change the keyboard to a double mapping : signals -> key_id -> values
- *        so that applications can change values without knowing signals
- *
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/spinlock.h>
-#include <linux/interrupt.h>
-#include <linux/miscdevice.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
-#include <linux/fcntl.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/kernel.h>
-#include <linux/ctype.h>
-#include <linux/parport.h>
-#include <linux/list.h>
-#include <linux/notifier.h>
-#include <linux/reboot.h>
-#include <generated/utsrelease.h>
-
-#include <linux/io.h>
-#include <linux/uaccess.h>
-
-#define LCD_MINOR		156
-#define KEYPAD_MINOR		185
-
-#define PANEL_VERSION		"0.9.5"
-
-#define LCD_MAXBYTES		256	/* max burst write */
-
-#define KEYPAD_BUFFER		64
-
-/* poll the keyboard this every second */
-#define INPUT_POLL_TIME		(HZ / 50)
-/* a key starts to repeat after this times INPUT_POLL_TIME */
-#define KEYPAD_REP_START	(10)
-/* a key repeats this times INPUT_POLL_TIME */
-#define KEYPAD_REP_DELAY	(2)
-
-/* keep the light on this times INPUT_POLL_TIME for each flash */
-#define FLASH_LIGHT_TEMPO	(200)
-
-/* converts an r_str() input to an active high, bits string : 000BAOSE */
-#define PNL_PINPUT(a)		((((unsigned char)(a)) ^ 0x7F) >> 3)
-
-#define PNL_PBUSY		0x80	/* inverted input, active low */
-#define PNL_PACK		0x40	/* direct input, active low */
-#define PNL_POUTPA		0x20	/* direct input, active high */
-#define PNL_PSELECD		0x10	/* direct input, active high */
-#define PNL_PERRORP		0x08	/* direct input, active low */
-
-#define PNL_PBIDIR		0x20	/* bi-directional ports */
-/* high to read data in or-ed with data out */
-#define PNL_PINTEN		0x10
-#define PNL_PSELECP		0x08	/* inverted output, active low */
-#define PNL_PINITP		0x04	/* direct output, active low */
-#define PNL_PAUTOLF		0x02	/* inverted output, active low */
-#define PNL_PSTROBE		0x01	/* inverted output */
-
-#define PNL_PD0			0x01
-#define PNL_PD1			0x02
-#define PNL_PD2			0x04
-#define PNL_PD3			0x08
-#define PNL_PD4			0x10
-#define PNL_PD5			0x20
-#define PNL_PD6			0x40
-#define PNL_PD7			0x80
-
-#define PIN_NONE		0
-#define PIN_STROBE		1
-#define PIN_D0			2
-#define PIN_D1			3
-#define PIN_D2			4
-#define PIN_D3			5
-#define PIN_D4			6
-#define PIN_D5			7
-#define PIN_D6			8
-#define PIN_D7			9
-#define PIN_AUTOLF		14
-#define PIN_INITP		16
-#define PIN_SELECP		17
-#define PIN_NOT_SET		127
-
-#define LCD_FLAG_S		0x0001
-#define LCD_FLAG_ID		0x0002
-#define LCD_FLAG_B		0x0004	/* blink on */
-#define LCD_FLAG_C		0x0008	/* cursor on */
-#define LCD_FLAG_D		0x0010	/* display on */
-#define LCD_FLAG_F		0x0020	/* large font mode */
-#define LCD_FLAG_N		0x0040	/* 2-rows mode */
-#define LCD_FLAG_L		0x0080	/* backlight enabled */
-
-/* LCD commands */
-#define LCD_CMD_DISPLAY_CLEAR	0x01	/* Clear entire display */
-
-#define LCD_CMD_ENTRY_MODE	0x04	/* Set entry mode */
-#define LCD_CMD_CURSOR_INC	0x02	/* Increment cursor */
-
-#define LCD_CMD_DISPLAY_CTRL	0x08	/* Display control */
-#define LCD_CMD_DISPLAY_ON	0x04	/* Set display on */
-#define LCD_CMD_CURSOR_ON	0x02	/* Set cursor on */
-#define LCD_CMD_BLINK_ON	0x01	/* Set blink on */
-
-#define LCD_CMD_SHIFT		0x10	/* Shift cursor/display */
-#define LCD_CMD_DISPLAY_SHIFT	0x08	/* Shift display instead of cursor */
-#define LCD_CMD_SHIFT_RIGHT	0x04	/* Shift display/cursor to the right */
-
-#define LCD_CMD_FUNCTION_SET	0x20	/* Set function */
-#define LCD_CMD_DATA_LEN_8BITS	0x10	/* Set data length to 8 bits */
-#define LCD_CMD_TWO_LINES	0x08	/* Set to two display lines */
-#define LCD_CMD_FONT_5X10_DOTS	0x04	/* Set char font to 5x10 dots */
-
-#define LCD_CMD_SET_CGRAM_ADDR	0x40	/* Set char generator RAM address */
-
-#define LCD_CMD_SET_DDRAM_ADDR	0x80	/* Set display data RAM address */
-
-#define LCD_ESCAPE_LEN		24	/* max chars for LCD escape command */
-#define LCD_ESCAPE_CHAR	27	/* use char 27 for escape command */
-
-#define NOT_SET			-1
-
-/* macros to simplify use of the parallel port */
-#define r_ctr(x)        (parport_read_control((x)->port))
-#define r_dtr(x)        (parport_read_data((x)->port))
-#define r_str(x)        (parport_read_status((x)->port))
-#define w_ctr(x, y)     (parport_write_control((x)->port, (y)))
-#define w_dtr(x, y)     (parport_write_data((x)->port, (y)))
-
-/* this defines which bits are to be used and which ones to be ignored */
-/* logical or of the output bits involved in the scan matrix */
-static __u8 scan_mask_o;
-/* logical or of the input bits involved in the scan matrix */
-static __u8 scan_mask_i;
-
-enum input_type {
-	INPUT_TYPE_STD,
-	INPUT_TYPE_KBD,
-};
-
-enum input_state {
-	INPUT_ST_LOW,
-	INPUT_ST_RISING,
-	INPUT_ST_HIGH,
-	INPUT_ST_FALLING,
-};
-
-struct logical_input {
-	struct list_head list;
-	__u64 mask;
-	__u64 value;
-	enum input_type type;
-	enum input_state state;
-	__u8 rise_time, fall_time;
-	__u8 rise_timer, fall_timer, high_timer;
-
-	union {
-		struct {	/* valid when type == INPUT_TYPE_STD */
-			void (*press_fct)(int);
-			void (*release_fct)(int);
-			int press_data;
-			int release_data;
-		} std;
-		struct {	/* valid when type == INPUT_TYPE_KBD */
-			/* strings can be non null-terminated */
-			char press_str[sizeof(void *) + sizeof(int)];
-			char repeat_str[sizeof(void *) + sizeof(int)];
-			char release_str[sizeof(void *) + sizeof(int)];
-		} kbd;
-	} u;
-};
-
-static LIST_HEAD(logical_inputs);	/* list of all defined logical inputs */
-
-/* physical contacts history
- * Physical contacts are a 45 bits string of 9 groups of 5 bits each.
- * The 8 lower groups correspond to output bits 0 to 7, and the 9th group
- * corresponds to the ground.
- * Within each group, bits are stored in the same order as read on the port :
- * BAPSE (busy=4, ack=3, paper empty=2, select=1, error=0).
- * So, each __u64 is represented like this :
- * 0000000000000000000BAPSEBAPSEBAPSEBAPSEBAPSEBAPSEBAPSEBAPSEBAPSE
- * <-----unused------><gnd><d07><d06><d05><d04><d03><d02><d01><d00>
- */
-
-/* what has just been read from the I/O ports */
-static __u64 phys_read;
-/* previous phys_read */
-static __u64 phys_read_prev;
-/* stabilized phys_read (phys_read|phys_read_prev) */
-static __u64 phys_curr;
-/* previous phys_curr */
-static __u64 phys_prev;
-/* 0 means that at least one logical signal needs be computed */
-static char inputs_stable;
-
-/* these variables are specific to the keypad */
-static struct {
-	bool enabled;
-} keypad;
-
-static char keypad_buffer[KEYPAD_BUFFER];
-static int keypad_buflen;
-static int keypad_start;
-static char keypressed;
-static wait_queue_head_t keypad_read_wait;
-
-/* lcd-specific variables */
-static struct {
-	bool enabled;
-	bool initialized;
-	bool must_clear;
-
-	int height;
-	int width;
-	int bwidth;
-	int hwidth;
-	int charset;
-	int proto;
-	int light_tempo;
-
-	/* TODO: use union here? */
-	struct {
-		int e;
-		int rs;
-		int rw;
-		int cl;
-		int da;
-		int bl;
-	} pins;
-
-	/* contains the LCD config state */
-	unsigned long int flags;
-
-	/* Contains the LCD X and Y offset */
-	struct {
-		unsigned long int x;
-		unsigned long int y;
-	} addr;
-
-	/* Current escape sequence and it's length or -1 if outside */
-	struct {
-		char buf[LCD_ESCAPE_LEN + 1];
-		int len;
-	} esc_seq;
-} lcd;
-
-/* Needed only for init */
-static int selected_lcd_type = NOT_SET;
-
-/*
- * Bit masks to convert LCD signals to parallel port outputs.
- * _d_ are values for data port, _c_ are for control port.
- * [0] = signal OFF, [1] = signal ON, [2] = mask
- */
-#define BIT_CLR		0
-#define BIT_SET		1
-#define BIT_MSK		2
-#define BIT_STATES	3
-/*
- * one entry for each bit on the LCD
- */
-#define LCD_BIT_E	0
-#define LCD_BIT_RS	1
-#define LCD_BIT_RW	2
-#define LCD_BIT_BL	3
-#define LCD_BIT_CL	4
-#define LCD_BIT_DA	5
-#define LCD_BITS	6
-
-/*
- * each bit can be either connected to a DATA or CTRL port
- */
-#define LCD_PORT_C	0
-#define LCD_PORT_D	1
-#define LCD_PORTS	2
-
-static unsigned char lcd_bits[LCD_PORTS][LCD_BITS][BIT_STATES];
-
-/*
- * LCD protocols
- */
-#define LCD_PROTO_PARALLEL      0
-#define LCD_PROTO_SERIAL        1
-#define LCD_PROTO_TI_DA8XX_LCD	2
-
-/*
- * LCD character sets
- */
-#define LCD_CHARSET_NORMAL      0
-#define LCD_CHARSET_KS0074      1
-
-/*
- * LCD types
- */
-#define LCD_TYPE_NONE		0
-#define LCD_TYPE_CUSTOM		1
-#define LCD_TYPE_OLD		2
-#define LCD_TYPE_KS0074		3
-#define LCD_TYPE_HANTRONIX	4
-#define LCD_TYPE_NEXCOM		5
-
-/*
- * keypad types
- */
-#define KEYPAD_TYPE_NONE	0
-#define KEYPAD_TYPE_OLD		1
-#define KEYPAD_TYPE_NEW		2
-#define KEYPAD_TYPE_NEXCOM	3
-
-/*
- * panel profiles
- */
-#define PANEL_PROFILE_CUSTOM	0
-#define PANEL_PROFILE_OLD	1
-#define PANEL_PROFILE_NEW	2
-#define PANEL_PROFILE_HANTRONIX	3
-#define PANEL_PROFILE_NEXCOM	4
-#define PANEL_PROFILE_LARGE	5
-
-/*
- * Construct custom config from the kernel's configuration
- */
-#define DEFAULT_PARPORT         0
-#define DEFAULT_PROFILE         PANEL_PROFILE_LARGE
-#define DEFAULT_KEYPAD_TYPE     KEYPAD_TYPE_OLD
-#define DEFAULT_LCD_TYPE        LCD_TYPE_OLD
-#define DEFAULT_LCD_HEIGHT      2
-#define DEFAULT_LCD_WIDTH       40
-#define DEFAULT_LCD_BWIDTH      40
-#define DEFAULT_LCD_HWIDTH      64
-#define DEFAULT_LCD_CHARSET     LCD_CHARSET_NORMAL
-#define DEFAULT_LCD_PROTO       LCD_PROTO_PARALLEL
-
-#define DEFAULT_LCD_PIN_E       PIN_AUTOLF
-#define DEFAULT_LCD_PIN_RS      PIN_SELECP
-#define DEFAULT_LCD_PIN_RW      PIN_INITP
-#define DEFAULT_LCD_PIN_SCL     PIN_STROBE
-#define DEFAULT_LCD_PIN_SDA     PIN_D0
-#define DEFAULT_LCD_PIN_BL      PIN_NOT_SET
-
-#ifdef CONFIG_PANEL_PARPORT
-#undef DEFAULT_PARPORT
-#define DEFAULT_PARPORT CONFIG_PANEL_PARPORT
-#endif
-
-#ifdef CONFIG_PANEL_PROFILE
-#undef DEFAULT_PROFILE
-#define DEFAULT_PROFILE CONFIG_PANEL_PROFILE
-#endif
-
-#if DEFAULT_PROFILE == 0	/* custom */
-#ifdef CONFIG_PANEL_KEYPAD
-#undef DEFAULT_KEYPAD_TYPE
-#define DEFAULT_KEYPAD_TYPE CONFIG_PANEL_KEYPAD
-#endif
-
-#ifdef CONFIG_PANEL_LCD
-#undef DEFAULT_LCD_TYPE
-#define DEFAULT_LCD_TYPE CONFIG_PANEL_LCD
-#endif
-
-#ifdef CONFIG_PANEL_LCD_HEIGHT
-#undef DEFAULT_LCD_HEIGHT
-#define DEFAULT_LCD_HEIGHT CONFIG_PANEL_LCD_HEIGHT
-#endif
-
-#ifdef CONFIG_PANEL_LCD_WIDTH
-#undef DEFAULT_LCD_WIDTH
-#define DEFAULT_LCD_WIDTH CONFIG_PANEL_LCD_WIDTH
-#endif
-
-#ifdef CONFIG_PANEL_LCD_BWIDTH
-#undef DEFAULT_LCD_BWIDTH
-#define DEFAULT_LCD_BWIDTH CONFIG_PANEL_LCD_BWIDTH
-#endif
-
-#ifdef CONFIG_PANEL_LCD_HWIDTH
-#undef DEFAULT_LCD_HWIDTH
-#define DEFAULT_LCD_HWIDTH CONFIG_PANEL_LCD_HWIDTH
-#endif
-
-#ifdef CONFIG_PANEL_LCD_CHARSET
-#undef DEFAULT_LCD_CHARSET
-#define DEFAULT_LCD_CHARSET CONFIG_PANEL_LCD_CHARSET
-#endif
-
-#ifdef CONFIG_PANEL_LCD_PROTO
-#undef DEFAULT_LCD_PROTO
-#define DEFAULT_LCD_PROTO CONFIG_PANEL_LCD_PROTO
-#endif
-
-#ifdef CONFIG_PANEL_LCD_PIN_E
-#undef DEFAULT_LCD_PIN_E
-#define DEFAULT_LCD_PIN_E CONFIG_PANEL_LCD_PIN_E
-#endif
-
-#ifdef CONFIG_PANEL_LCD_PIN_RS
-#undef DEFAULT_LCD_PIN_RS
-#define DEFAULT_LCD_PIN_RS CONFIG_PANEL_LCD_PIN_RS
-#endif
-
-#ifdef CONFIG_PANEL_LCD_PIN_RW
-#undef DEFAULT_LCD_PIN_RW
-#define DEFAULT_LCD_PIN_RW CONFIG_PANEL_LCD_PIN_RW
-#endif
-
-#ifdef CONFIG_PANEL_LCD_PIN_SCL
-#undef DEFAULT_LCD_PIN_SCL
-#define DEFAULT_LCD_PIN_SCL CONFIG_PANEL_LCD_PIN_SCL
-#endif
-
-#ifdef CONFIG_PANEL_LCD_PIN_SDA
-#undef DEFAULT_LCD_PIN_SDA
-#define DEFAULT_LCD_PIN_SDA CONFIG_PANEL_LCD_PIN_SDA
-#endif
-
-#ifdef CONFIG_PANEL_LCD_PIN_BL
-#undef DEFAULT_LCD_PIN_BL
-#define DEFAULT_LCD_PIN_BL CONFIG_PANEL_LCD_PIN_BL
-#endif
-
-#endif /* DEFAULT_PROFILE == 0 */
-
-/* global variables */
-
-/* Device single-open policy control */
-static atomic_t lcd_available = ATOMIC_INIT(1);
-static atomic_t keypad_available = ATOMIC_INIT(1);
-
-static struct pardevice *pprt;
-
-static int keypad_initialized;
-
-static void (*lcd_write_cmd)(int);
-static void (*lcd_write_data)(int);
-static void (*lcd_clear_fast)(void);
-
-static DEFINE_SPINLOCK(pprt_lock);
-static struct timer_list scan_timer;
-
-MODULE_DESCRIPTION("Generic parallel port LCD/Keypad driver");
-
-static int parport = DEFAULT_PARPORT;
-module_param(parport, int, 0000);
-MODULE_PARM_DESC(parport, "Parallel port index (0=lpt1, 1=lpt2, ...)");
-
-static int profile = DEFAULT_PROFILE;
-module_param(profile, int, 0000);
-MODULE_PARM_DESC(profile,
-		 "1=16x2 old kp; 2=serial 16x2, new kp; 3=16x2 hantronix; "
-		 "4=16x2 nexcom; default=40x2, old kp");
-
-static int keypad_type = NOT_SET;
-module_param(keypad_type, int, 0000);
-MODULE_PARM_DESC(keypad_type,
-		 "Keypad type: 0=none, 1=old 6 keys, 2=new 6+1 keys, 3=nexcom 4 keys");
-
-static int lcd_type = NOT_SET;
-module_param(lcd_type, int, 0000);
-MODULE_PARM_DESC(lcd_type,
-		 "LCD type: 0=none, 1=compiled-in, 2=old, 3=serial ks0074, 4=hantronix, 5=nexcom");
-
-static int lcd_height = NOT_SET;
-module_param(lcd_height, int, 0000);
-MODULE_PARM_DESC(lcd_height, "Number of lines on the LCD");
-
-static int lcd_width = NOT_SET;
-module_param(lcd_width, int, 0000);
-MODULE_PARM_DESC(lcd_width, "Number of columns on the LCD");
-
-static int lcd_bwidth = NOT_SET;	/* internal buffer width (usually 40) */
-module_param(lcd_bwidth, int, 0000);
-MODULE_PARM_DESC(lcd_bwidth, "Internal LCD line width (40)");
-
-static int lcd_hwidth = NOT_SET;	/* hardware buffer width (usually 64) */
-module_param(lcd_hwidth, int, 0000);
-MODULE_PARM_DESC(lcd_hwidth, "LCD line hardware address (64)");
-
-static int lcd_charset = NOT_SET;
-module_param(lcd_charset, int, 0000);
-MODULE_PARM_DESC(lcd_charset, "LCD character set: 0=standard, 1=KS0074");
-
-static int lcd_proto = NOT_SET;
-module_param(lcd_proto, int, 0000);
-MODULE_PARM_DESC(lcd_proto,
-		 "LCD communication: 0=parallel (//), 1=serial, 2=TI LCD Interface");
-
-/*
- * These are the parallel port pins the LCD control signals are connected to.
- * Set this to 0 if the signal is not used. Set it to its opposite value
- * (negative) if the signal is negated. -MAXINT is used to indicate that the
- * pin has not been explicitly specified.
- *
- * WARNING! no check will be performed about collisions with keypad !
- */
-
-static int lcd_e_pin  = PIN_NOT_SET;
-module_param(lcd_e_pin, int, 0000);
-MODULE_PARM_DESC(lcd_e_pin,
-		 "# of the // port pin connected to LCD 'E' signal, with polarity (-17..17)");
-
-static int lcd_rs_pin = PIN_NOT_SET;
-module_param(lcd_rs_pin, int, 0000);
-MODULE_PARM_DESC(lcd_rs_pin,
-		 "# of the // port pin connected to LCD 'RS' signal, with polarity (-17..17)");
-
-static int lcd_rw_pin = PIN_NOT_SET;
-module_param(lcd_rw_pin, int, 0000);
-MODULE_PARM_DESC(lcd_rw_pin,
-		 "# of the // port pin connected to LCD 'RW' signal, with polarity (-17..17)");
-
-static int lcd_cl_pin = PIN_NOT_SET;
-module_param(lcd_cl_pin, int, 0000);
-MODULE_PARM_DESC(lcd_cl_pin,
-		 "# of the // port pin connected to serial LCD 'SCL' signal, with polarity (-17..17)");
-
-static int lcd_da_pin = PIN_NOT_SET;
-module_param(lcd_da_pin, int, 0000);
-MODULE_PARM_DESC(lcd_da_pin,
-		 "# of the // port pin connected to serial LCD 'SDA' signal, with polarity (-17..17)");
-
-static int lcd_bl_pin = PIN_NOT_SET;
-module_param(lcd_bl_pin, int, 0000);
-MODULE_PARM_DESC(lcd_bl_pin,
-		 "# of the // port pin connected to LCD backlight, with polarity (-17..17)");
-
-/* Deprecated module parameters - consider not using them anymore */
-
-static int lcd_enabled = NOT_SET;
-module_param(lcd_enabled, int, 0000);
-MODULE_PARM_DESC(lcd_enabled, "Deprecated option, use lcd_type instead");
-
-static int keypad_enabled = NOT_SET;
-module_param(keypad_enabled, int, 0000);
-MODULE_PARM_DESC(keypad_enabled, "Deprecated option, use keypad_type instead");
-
-static const unsigned char *lcd_char_conv;
-
-/* for some LCD drivers (ks0074) we need a charset conversion table. */
-static const unsigned char lcd_char_conv_ks0074[256] = {
-	/*          0|8   1|9   2|A   3|B   4|C   5|D   6|E   7|F */
-	/* 0x00 */ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
-	/* 0x08 */ 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
-	/* 0x10 */ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
-	/* 0x18 */ 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
-	/* 0x20 */ 0x20, 0x21, 0x22, 0x23, 0xa2, 0x25, 0x26, 0x27,
-	/* 0x28 */ 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
-	/* 0x30 */ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
-	/* 0x38 */ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
-	/* 0x40 */ 0xa0, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
-	/* 0x48 */ 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
-	/* 0x50 */ 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57,
-	/* 0x58 */ 0x58, 0x59, 0x5a, 0xfa, 0xfb, 0xfc, 0x1d, 0xc4,
-	/* 0x60 */ 0x96, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-	/* 0x68 */ 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
-	/* 0x70 */ 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-	/* 0x78 */ 0x78, 0x79, 0x7a, 0xfd, 0xfe, 0xff, 0xce, 0x20,
-	/* 0x80 */ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
-	/* 0x88 */ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
-	/* 0x90 */ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
-	/* 0x98 */ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
-	/* 0xA0 */ 0x20, 0x40, 0xb1, 0xa1, 0x24, 0xa3, 0xfe, 0x5f,
-	/* 0xA8 */ 0x22, 0xc8, 0x61, 0x14, 0x97, 0x2d, 0xad, 0x96,
-	/* 0xB0 */ 0x80, 0x8c, 0x82, 0x83, 0x27, 0x8f, 0x86, 0xdd,
-	/* 0xB8 */ 0x2c, 0x81, 0x6f, 0x15, 0x8b, 0x8a, 0x84, 0x60,
-	/* 0xC0 */ 0xe2, 0xe2, 0xe2, 0x5b, 0x5b, 0xae, 0xbc, 0xa9,
-	/* 0xC8 */ 0xc5, 0xbf, 0xc6, 0xf1, 0xe3, 0xe3, 0xe3, 0xe3,
-	/* 0xD0 */ 0x44, 0x5d, 0xa8, 0xe4, 0xec, 0xec, 0x5c, 0x78,
-	/* 0xD8 */ 0xab, 0xa6, 0xe5, 0x5e, 0x5e, 0xe6, 0xaa, 0xbe,
-	/* 0xE0 */ 0x7f, 0xe7, 0xaf, 0x7b, 0x7b, 0xaf, 0xbd, 0xc8,
-	/* 0xE8 */ 0xa4, 0xa5, 0xc7, 0xf6, 0xa7, 0xe8, 0x69, 0x69,
-	/* 0xF0 */ 0xed, 0x7d, 0xa8, 0xe4, 0xec, 0x5c, 0x5c, 0x25,
-	/* 0xF8 */ 0xac, 0xa6, 0xea, 0xef, 0x7e, 0xeb, 0xb2, 0x79,
-};
-
-static const char old_keypad_profile[][4][9] = {
-	{"S0", "Left\n", "Left\n", ""},
-	{"S1", "Down\n", "Down\n", ""},
-	{"S2", "Up\n", "Up\n", ""},
-	{"S3", "Right\n", "Right\n", ""},
-	{"S4", "Esc\n", "Esc\n", ""},
-	{"S5", "Ret\n", "Ret\n", ""},
-	{"", "", "", ""}
-};
-
-/* signals, press, repeat, release */
-static const char new_keypad_profile[][4][9] = {
-	{"S0", "Left\n", "Left\n", ""},
-	{"S1", "Down\n", "Down\n", ""},
-	{"S2", "Up\n", "Up\n", ""},
-	{"S3", "Right\n", "Right\n", ""},
-	{"S4s5", "", "Esc\n", "Esc\n"},
-	{"s4S5", "", "Ret\n", "Ret\n"},
-	{"S4S5", "Help\n", "", ""},
-	/* add new signals above this line */
-	{"", "", "", ""}
-};
-
-/* signals, press, repeat, release */
-static const char nexcom_keypad_profile[][4][9] = {
-	{"a-p-e-", "Down\n", "Down\n", ""},
-	{"a-p-E-", "Ret\n", "Ret\n", ""},
-	{"a-P-E-", "Esc\n", "Esc\n", ""},
-	{"a-P-e-", "Up\n", "Up\n", ""},
-	/* add new signals above this line */
-	{"", "", "", ""}
-};
-
-static const char (*keypad_profile)[4][9] = old_keypad_profile;
-
-/* FIXME: this should be converted to a bit array containing signals states */
-static struct {
-	unsigned char e;  /* parallel LCD E (data latch on falling edge) */
-	unsigned char rs; /* parallel LCD RS  (0 = cmd, 1 = data) */
-	unsigned char rw; /* parallel LCD R/W (0 = W, 1 = R) */
-	unsigned char bl; /* parallel LCD backlight (0 = off, 1 = on) */
-	unsigned char cl; /* serial LCD clock (latch on rising edge) */
-	unsigned char da; /* serial LCD data */
-} bits;
-
-static void init_scan_timer(void);
-
-/* sets data port bits according to current signals values */
-static int set_data_bits(void)
-{
-	int val, bit;
-
-	val = r_dtr(pprt);
-	for (bit = 0; bit < LCD_BITS; bit++)
-		val &= lcd_bits[LCD_PORT_D][bit][BIT_MSK];
-
-	val |= lcd_bits[LCD_PORT_D][LCD_BIT_E][bits.e]
-	    | lcd_bits[LCD_PORT_D][LCD_BIT_RS][bits.rs]
-	    | lcd_bits[LCD_PORT_D][LCD_BIT_RW][bits.rw]
-	    | lcd_bits[LCD_PORT_D][LCD_BIT_BL][bits.bl]
-	    | lcd_bits[LCD_PORT_D][LCD_BIT_CL][bits.cl]
-	    | lcd_bits[LCD_PORT_D][LCD_BIT_DA][bits.da];
-
-	w_dtr(pprt, val);
-	return val;
-}
-
-/* sets ctrl port bits according to current signals values */
-static int set_ctrl_bits(void)
-{
-	int val, bit;
-
-	val = r_ctr(pprt);
-	for (bit = 0; bit < LCD_BITS; bit++)
-		val &= lcd_bits[LCD_PORT_C][bit][BIT_MSK];
-
-	val |= lcd_bits[LCD_PORT_C][LCD_BIT_E][bits.e]
-	    | lcd_bits[LCD_PORT_C][LCD_BIT_RS][bits.rs]
-	    | lcd_bits[LCD_PORT_C][LCD_BIT_RW][bits.rw]
-	    | lcd_bits[LCD_PORT_C][LCD_BIT_BL][bits.bl]
-	    | lcd_bits[LCD_PORT_C][LCD_BIT_CL][bits.cl]
-	    | lcd_bits[LCD_PORT_C][LCD_BIT_DA][bits.da];
-
-	w_ctr(pprt, val);
-	return val;
-}
-
-/* sets ctrl & data port bits according to current signals values */
-static void panel_set_bits(void)
-{
-	set_data_bits();
-	set_ctrl_bits();
-}
-
-/*
- * Converts a parallel port pin (from -25 to 25) to data and control ports
- * masks, and data and control port bits. The signal will be considered
- * unconnected if it's on pin 0 or an invalid pin (<-25 or >25).
- *
- * Result will be used this way :
- *   out(dport, in(dport) & d_val[2] | d_val[signal_state])
- *   out(cport, in(cport) & c_val[2] | c_val[signal_state])
- */
-static void pin_to_bits(int pin, unsigned char *d_val, unsigned char *c_val)
-{
-	int d_bit, c_bit, inv;
-
-	d_val[0] = 0;
-	c_val[0] = 0;
-	d_val[1] = 0;
-	c_val[1] = 0;
-	d_val[2] = 0xFF;
-	c_val[2] = 0xFF;
-
-	if (pin == 0)
-		return;
-
-	inv = (pin < 0);
-	if (inv)
-		pin = -pin;
-
-	d_bit = 0;
-	c_bit = 0;
-
-	switch (pin) {
-	case PIN_STROBE:	/* strobe, inverted */
-		c_bit = PNL_PSTROBE;
-		inv = !inv;
-		break;
-	case PIN_D0...PIN_D7:	/* D0 - D7 = 2 - 9 */
-		d_bit = 1 << (pin - 2);
-		break;
-	case PIN_AUTOLF:	/* autofeed, inverted */
-		c_bit = PNL_PAUTOLF;
-		inv = !inv;
-		break;
-	case PIN_INITP:		/* init, direct */
-		c_bit = PNL_PINITP;
-		break;
-	case PIN_SELECP:	/* select_in, inverted */
-		c_bit = PNL_PSELECP;
-		inv = !inv;
-		break;
-	default:		/* unknown pin, ignore */
-		break;
-	}
-
-	if (c_bit) {
-		c_val[2] &= ~c_bit;
-		c_val[!inv] = c_bit;
-	} else if (d_bit) {
-		d_val[2] &= ~d_bit;
-		d_val[!inv] = d_bit;
-	}
-}
-
-/* sleeps that many milliseconds with a reschedule */
-static void long_sleep(int ms)
-{
-	if (in_interrupt())
-		mdelay(ms);
-	else
-		schedule_timeout_interruptible(msecs_to_jiffies(ms));
-}
-
-/*
- * send a serial byte to the LCD panel. The caller is responsible for locking
- * if needed.
- */
-static void lcd_send_serial(int byte)
-{
-	int bit;
-
-	/*
-	 * the data bit is set on D0, and the clock on STROBE.
-	 * LCD reads D0 on STROBE's rising edge.
-	 */
-	for (bit = 0; bit < 8; bit++) {
-		bits.cl = BIT_CLR;	/* CLK low */
-		panel_set_bits();
-		bits.da = byte & 1;
-		panel_set_bits();
-		udelay(2);  /* maintain the data during 2 us before CLK up */
-		bits.cl = BIT_SET;	/* CLK high */
-		panel_set_bits();
-		udelay(1);  /* maintain the strobe during 1 us */
-		byte >>= 1;
-	}
-}
-
-/* turn the backlight on or off */
-static void lcd_backlight(int on)
-{
-	if (lcd.pins.bl == PIN_NONE)
-		return;
-
-	/* The backlight is activated by setting the AUTOFEED line to +5V  */
-	spin_lock_irq(&pprt_lock);
-	bits.bl = on;
-	panel_set_bits();
-	spin_unlock_irq(&pprt_lock);
-}
-
-/* send a command to the LCD panel in serial mode */
-static void lcd_write_cmd_s(int cmd)
-{
-	spin_lock_irq(&pprt_lock);
-	lcd_send_serial(0x1F);	/* R/W=W, RS=0 */
-	lcd_send_serial(cmd & 0x0F);
-	lcd_send_serial((cmd >> 4) & 0x0F);
-	udelay(40);		/* the shortest command takes at least 40 us */
-	spin_unlock_irq(&pprt_lock);
-}
-
-/* send data to the LCD panel in serial mode */
-static void lcd_write_data_s(int data)
-{
-	spin_lock_irq(&pprt_lock);
-	lcd_send_serial(0x5F);	/* R/W=W, RS=1 */
-	lcd_send_serial(data & 0x0F);
-	lcd_send_serial((data >> 4) & 0x0F);
-	udelay(40);		/* the shortest data takes at least 40 us */
-	spin_unlock_irq(&pprt_lock);
-}
-
-/* send a command to the LCD panel in 8 bits parallel mode */
-static void lcd_write_cmd_p8(int cmd)
-{
-	spin_lock_irq(&pprt_lock);
-	/* present the data to the data port */
-	w_dtr(pprt, cmd);
-	udelay(20);	/* maintain the data during 20 us before the strobe */
-
-	bits.e = BIT_SET;
-	bits.rs = BIT_CLR;
-	bits.rw = BIT_CLR;
-	set_ctrl_bits();
-
-	udelay(40);	/* maintain the strobe during 40 us */
-
-	bits.e = BIT_CLR;
-	set_ctrl_bits();
-
-	udelay(120);	/* the shortest command takes at least 120 us */
-	spin_unlock_irq(&pprt_lock);
-}
-
-/* send data to the LCD panel in 8 bits parallel mode */
-static void lcd_write_data_p8(int data)
-{
-	spin_lock_irq(&pprt_lock);
-	/* present the data to the data port */
-	w_dtr(pprt, data);
-	udelay(20);	/* maintain the data during 20 us before the strobe */
-
-	bits.e = BIT_SET;
-	bits.rs = BIT_SET;
-	bits.rw = BIT_CLR;
-	set_ctrl_bits();
-
-	udelay(40);	/* maintain the strobe during 40 us */
-
-	bits.e = BIT_CLR;
-	set_ctrl_bits();
-
-	udelay(45);	/* the shortest data takes at least 45 us */
-	spin_unlock_irq(&pprt_lock);
-}
-
-/* send a command to the TI LCD panel */
-static void lcd_write_cmd_tilcd(int cmd)
-{
-	spin_lock_irq(&pprt_lock);
-	/* present the data to the control port */
-	w_ctr(pprt, cmd);
-	udelay(60);
-	spin_unlock_irq(&pprt_lock);
-}
-
-/* send data to the TI LCD panel */
-static void lcd_write_data_tilcd(int data)
-{
-	spin_lock_irq(&pprt_lock);
-	/* present the data to the data port */
-	w_dtr(pprt, data);
-	udelay(60);
-	spin_unlock_irq(&pprt_lock);
-}
-
-static void lcd_gotoxy(void)
-{
-	lcd_write_cmd(LCD_CMD_SET_DDRAM_ADDR
-		      | (lcd.addr.y ? lcd.hwidth : 0)
-		      /*
-		       * we force the cursor to stay at the end of the
-		       * line if it wants to go farther
-		       */
-		      | ((lcd.addr.x < lcd.bwidth) ? lcd.addr.x &
-			 (lcd.hwidth - 1) : lcd.bwidth - 1));
-}
-
-static void lcd_print(char c)
-{
-	if (lcd.addr.x < lcd.bwidth) {
-		if (lcd_char_conv)
-			c = lcd_char_conv[(unsigned char)c];
-		lcd_write_data(c);
-		lcd.addr.x++;
-	}
-	/* prevents the cursor from wrapping onto the next line */
-	if (lcd.addr.x == lcd.bwidth)
-		lcd_gotoxy();
-}
-
-/* fills the display with spaces and resets X/Y */
-static void lcd_clear_fast_s(void)
-{
-	int pos;
-
-	lcd.addr.x = 0;
-	lcd.addr.y = 0;
-	lcd_gotoxy();
-
-	spin_lock_irq(&pprt_lock);
-	for (pos = 0; pos < lcd.height * lcd.hwidth; pos++) {
-		lcd_send_serial(0x5F);	/* R/W=W, RS=1 */
-		lcd_send_serial(' ' & 0x0F);
-		lcd_send_serial((' ' >> 4) & 0x0F);
-		/* the shortest data takes at least 40 us */
-		udelay(40);
-	}
-	spin_unlock_irq(&pprt_lock);
-
-	lcd.addr.x = 0;
-	lcd.addr.y = 0;
-	lcd_gotoxy();
-}
-
-/* fills the display with spaces and resets X/Y */
-static void lcd_clear_fast_p8(void)
-{
-	int pos;
-
-	lcd.addr.x = 0;
-	lcd.addr.y = 0;
-	lcd_gotoxy();
-
-	spin_lock_irq(&pprt_lock);
-	for (pos = 0; pos < lcd.height * lcd.hwidth; pos++) {
-		/* present the data to the data port */
-		w_dtr(pprt, ' ');
-
-		/* maintain the data during 20 us before the strobe */
-		udelay(20);
-
-		bits.e = BIT_SET;
-		bits.rs = BIT_SET;
-		bits.rw = BIT_CLR;
-		set_ctrl_bits();
-
-		/* maintain the strobe during 40 us */
-		udelay(40);
-
-		bits.e = BIT_CLR;
-		set_ctrl_bits();
-
-		/* the shortest data takes at least 45 us */
-		udelay(45);
-	}
-	spin_unlock_irq(&pprt_lock);
-
-	lcd.addr.x = 0;
-	lcd.addr.y = 0;
-	lcd_gotoxy();
-}
-
-/* fills the display with spaces and resets X/Y */
-static void lcd_clear_fast_tilcd(void)
-{
-	int pos;
-
-	lcd.addr.x = 0;
-	lcd.addr.y = 0;
-	lcd_gotoxy();
-
-	spin_lock_irq(&pprt_lock);
-	for (pos = 0; pos < lcd.height * lcd.hwidth; pos++) {
-		/* present the data to the data port */
-		w_dtr(pprt, ' ');
-		udelay(60);
-	}
-
-	spin_unlock_irq(&pprt_lock);
-
-	lcd.addr.x = 0;
-	lcd.addr.y = 0;
-	lcd_gotoxy();
-}
-
-/* clears the display and resets X/Y */
-static void lcd_clear_display(void)
-{
-	lcd_write_cmd(LCD_CMD_DISPLAY_CLEAR);
-	lcd.addr.x = 0;
-	lcd.addr.y = 0;
-	/* we must wait a few milliseconds (15) */
-	long_sleep(15);
-}
-
-static void lcd_init_display(void)
-{
-	lcd.flags = ((lcd.height > 1) ? LCD_FLAG_N : 0)
-	    | LCD_FLAG_D | LCD_FLAG_C | LCD_FLAG_B;
-
-	long_sleep(20);		/* wait 20 ms after power-up for the paranoid */
-
-	/* 8bits, 1 line, small fonts; let's do it 3 times */
-	lcd_write_cmd(LCD_CMD_FUNCTION_SET | LCD_CMD_DATA_LEN_8BITS);
-	long_sleep(10);
-	lcd_write_cmd(LCD_CMD_FUNCTION_SET | LCD_CMD_DATA_LEN_8BITS);
-	long_sleep(10);
-	lcd_write_cmd(LCD_CMD_FUNCTION_SET | LCD_CMD_DATA_LEN_8BITS);
-	long_sleep(10);
-
-	/* set font height and lines number */
-	lcd_write_cmd(LCD_CMD_FUNCTION_SET | LCD_CMD_DATA_LEN_8BITS
-		      | ((lcd.flags & LCD_FLAG_F) ? LCD_CMD_FONT_5X10_DOTS : 0)
-		      | ((lcd.flags & LCD_FLAG_N) ? LCD_CMD_TWO_LINES : 0)
-	    );
-	long_sleep(10);
-
-	/* display off, cursor off, blink off */
-	lcd_write_cmd(LCD_CMD_DISPLAY_CTRL);
-	long_sleep(10);
-
-	lcd_write_cmd(LCD_CMD_DISPLAY_CTRL	/* set display mode */
-		      | ((lcd.flags & LCD_FLAG_D) ? LCD_CMD_DISPLAY_ON : 0)
-		      | ((lcd.flags & LCD_FLAG_C) ? LCD_CMD_CURSOR_ON : 0)
-		      | ((lcd.flags & LCD_FLAG_B) ? LCD_CMD_BLINK_ON : 0)
-	    );
-
-	lcd_backlight((lcd.flags & LCD_FLAG_L) ? 1 : 0);
-
-	long_sleep(10);
-
-	/* entry mode set : increment, cursor shifting */
-	lcd_write_cmd(LCD_CMD_ENTRY_MODE | LCD_CMD_CURSOR_INC);
-
-	lcd_clear_display();
-}
-
-/*
- * These are the file operation function for user access to /dev/lcd
- * This function can also be called from inside the kernel, by
- * setting file and ppos to NULL.
- *
- */
-
-static inline int handle_lcd_special_code(void)
-{
-	/* LCD special codes */
-
-	int processed = 0;
-
-	char *esc = lcd.esc_seq.buf + 2;
-	int oldflags = lcd.flags;
-
-	/* check for display mode flags */
-	switch (*esc) {
-	case 'D':	/* Display ON */
-		lcd.flags |= LCD_FLAG_D;
-		processed = 1;
-		break;
-	case 'd':	/* Display OFF */
-		lcd.flags &= ~LCD_FLAG_D;
-		processed = 1;
-		break;
-	case 'C':	/* Cursor ON */
-		lcd.flags |= LCD_FLAG_C;
-		processed = 1;
-		break;
-	case 'c':	/* Cursor OFF */
-		lcd.flags &= ~LCD_FLAG_C;
-		processed = 1;
-		break;
-	case 'B':	/* Blink ON */
-		lcd.flags |= LCD_FLAG_B;
-		processed = 1;
-		break;
-	case 'b':	/* Blink OFF */
-		lcd.flags &= ~LCD_FLAG_B;
-		processed = 1;
-		break;
-	case '+':	/* Back light ON */
-		lcd.flags |= LCD_FLAG_L;
-		processed = 1;
-		break;
-	case '-':	/* Back light OFF */
-		lcd.flags &= ~LCD_FLAG_L;
-		processed = 1;
-		break;
-	case '*':
-		/* flash back light using the keypad timer */
-		if (scan_timer.function) {
-			if (lcd.light_tempo == 0 &&
-			    ((lcd.flags & LCD_FLAG_L) == 0))
-				lcd_backlight(1);
-			lcd.light_tempo = FLASH_LIGHT_TEMPO;
-		}
-		processed = 1;
-		break;
-	case 'f':	/* Small Font */
-		lcd.flags &= ~LCD_FLAG_F;
-		processed = 1;
-		break;
-	case 'F':	/* Large Font */
-		lcd.flags |= LCD_FLAG_F;
-		processed = 1;
-		break;
-	case 'n':	/* One Line */
-		lcd.flags &= ~LCD_FLAG_N;
-		processed = 1;
-		break;
-	case 'N':	/* Two Lines */
-		lcd.flags |= LCD_FLAG_N;
-		break;
-	case 'l':	/* Shift Cursor Left */
-		if (lcd.addr.x > 0) {
-			/* back one char if not at end of line */
-			if (lcd.addr.x < lcd.bwidth)
-				lcd_write_cmd(LCD_CMD_SHIFT);
-			lcd.addr.x--;
-		}
-		processed = 1;
-		break;
-	case 'r':	/* shift cursor right */
-		if (lcd.addr.x < lcd.width) {
-			/* allow the cursor to pass the end of the line */
-			if (lcd.addr.x < (lcd.bwidth - 1))
-				lcd_write_cmd(LCD_CMD_SHIFT |
-						LCD_CMD_SHIFT_RIGHT);
-			lcd.addr.x++;
-		}
-		processed = 1;
-		break;
-	case 'L':	/* shift display left */
-		lcd_write_cmd(LCD_CMD_SHIFT | LCD_CMD_DISPLAY_SHIFT);
-		processed = 1;
-		break;
-	case 'R':	/* shift display right */
-		lcd_write_cmd(LCD_CMD_SHIFT | LCD_CMD_DISPLAY_SHIFT |
-				LCD_CMD_SHIFT_RIGHT);
-		processed = 1;
-		break;
-	case 'k': {	/* kill end of line */
-		int x;
-
-		for (x = lcd.addr.x; x < lcd.bwidth; x++)
-			lcd_write_data(' ');
-
-		/* restore cursor position */
-		lcd_gotoxy();
-		processed = 1;
-		break;
-	}
-	case 'I':	/* reinitialize display */
-		lcd_init_display();
-		processed = 1;
-		break;
-	case 'G': {
-		/* Generator : LGcxxxxx...xx; must have <c> between '0'
-		 * and '7', representing the numerical ASCII code of the
-		 * redefined character, and <xx...xx> a sequence of 16
-		 * hex digits representing 8 bytes for each character.
-		 * Most LCDs will only use 5 lower bits of the 7 first
-		 * bytes.
-		 */
-
-		unsigned char cgbytes[8];
-		unsigned char cgaddr;
-		int cgoffset;
-		int shift;
-		char value;
-		int addr;
-
-		if (!strchr(esc, ';'))
-			break;
-
-		esc++;
-
-		cgaddr = *(esc++) - '0';
-		if (cgaddr > 7) {
-			processed = 1;
-			break;
-		}
-
-		cgoffset = 0;
-		shift = 0;
-		value = 0;
-		while (*esc && cgoffset < 8) {
-			shift ^= 4;
-			if (*esc >= '0' && *esc <= '9') {
-				value |= (*esc - '0') << shift;
-			} else if (*esc >= 'A' && *esc <= 'Z') {
-				value |= (*esc - 'A' + 10) << shift;
-			} else if (*esc >= 'a' && *esc <= 'z') {
-				value |= (*esc - 'a' + 10) << shift;
-			} else {
-				esc++;
-				continue;
-			}
-
-			if (shift == 0) {
-				cgbytes[cgoffset++] = value;
-				value = 0;
-			}
-
-			esc++;
-		}
-
-		lcd_write_cmd(LCD_CMD_SET_CGRAM_ADDR | (cgaddr * 8));
-		for (addr = 0; addr < cgoffset; addr++)
-			lcd_write_data(cgbytes[addr]);
-
-		/* ensures that we stop writing to CGRAM */
-		lcd_gotoxy();
-		processed = 1;
-		break;
-	}
-	case 'x':	/* gotoxy : LxXXX[yYYY]; */
-	case 'y':	/* gotoxy : LyYYY[xXXX]; */
-		if (!strchr(esc, ';'))
-			break;
-
-		while (*esc) {
-			if (*esc == 'x') {
-				esc++;
-				if (kstrtoul(esc, 10, &lcd.addr.x) < 0)
-					break;
-			} else if (*esc == 'y') {
-				esc++;
-				if (kstrtoul(esc, 10, &lcd.addr.y) < 0)
-					break;
-			} else {
-				break;
-			}
-		}
-
-		lcd_gotoxy();
-		processed = 1;
-		break;
-	}
-
-	/* TODO: This indent party here got ugly, clean it! */
-	/* Check whether one flag was changed */
-	if (oldflags != lcd.flags) {
-		/* check whether one of B,C,D flags were changed */
-		if ((oldflags ^ lcd.flags) &
-		    (LCD_FLAG_B | LCD_FLAG_C | LCD_FLAG_D))
-			/* set display mode */
-			lcd_write_cmd(LCD_CMD_DISPLAY_CTRL
-				      | ((lcd.flags & LCD_FLAG_D)
-						      ? LCD_CMD_DISPLAY_ON : 0)
-				      | ((lcd.flags & LCD_FLAG_C)
-						      ? LCD_CMD_CURSOR_ON : 0)
-				      | ((lcd.flags & LCD_FLAG_B)
-						      ? LCD_CMD_BLINK_ON : 0));
-		/* check whether one of F,N flags was changed */
-		else if ((oldflags ^ lcd.flags) & (LCD_FLAG_F | LCD_FLAG_N))
-			lcd_write_cmd(LCD_CMD_FUNCTION_SET
-				      | LCD_CMD_DATA_LEN_8BITS
-				      | ((lcd.flags & LCD_FLAG_F)
-						      ? LCD_CMD_TWO_LINES : 0)
-				      | ((lcd.flags & LCD_FLAG_N)
-						      ? LCD_CMD_FONT_5X10_DOTS
-								      : 0));
-		/* check whether L flag was changed */
-		else if ((oldflags ^ lcd.flags) & (LCD_FLAG_L)) {
-			if (lcd.flags & (LCD_FLAG_L))
-				lcd_backlight(1);
-			else if (lcd.light_tempo == 0)
-				/*
-				 * switch off the light only when the tempo
-				 * lighting is gone
-				 */
-				lcd_backlight(0);
-		}
-	}
-
-	return processed;
-}
-
-static void lcd_write_char(char c)
-{
-	/* first, we'll test if we're in escape mode */
-	if ((c != '\n') && lcd.esc_seq.len >= 0) {
-		/* yes, let's add this char to the buffer */
-		lcd.esc_seq.buf[lcd.esc_seq.len++] = c;
-		lcd.esc_seq.buf[lcd.esc_seq.len] = 0;
-	} else {
-		/* aborts any previous escape sequence */
-		lcd.esc_seq.len = -1;
-
-		switch (c) {
-		case LCD_ESCAPE_CHAR:
-			/* start of an escape sequence */
-			lcd.esc_seq.len = 0;
-			lcd.esc_seq.buf[lcd.esc_seq.len] = 0;
-			break;
-		case '\b':
-			/* go back one char and clear it */
-			if (lcd.addr.x > 0) {
-				/*
-				 * check if we're not at the
-				 * end of the line
-				 */
-				if (lcd.addr.x < lcd.bwidth)
-					/* back one char */
-					lcd_write_cmd(LCD_CMD_SHIFT);
-				lcd.addr.x--;
-			}
-			/* replace with a space */
-			lcd_write_data(' ');
-			/* back one char again */
-			lcd_write_cmd(LCD_CMD_SHIFT);
-			break;
-		case '\014':
-			/* quickly clear the display */
-			lcd_clear_fast();
-			break;
-		case '\n':
-			/*
-			 * flush the remainder of the current line and
-			 * go to the beginning of the next line
-			 */
-			for (; lcd.addr.x < lcd.bwidth; lcd.addr.x++)
-				lcd_write_data(' ');
-			lcd.addr.x = 0;
-			lcd.addr.y = (lcd.addr.y + 1) % lcd.height;
-			lcd_gotoxy();
-			break;
-		case '\r':
-			/* go to the beginning of the same line */
-			lcd.addr.x = 0;
-			lcd_gotoxy();
-			break;
-		case '\t':
-			/* print a space instead of the tab */
-			lcd_print(' ');
-			break;
-		default:
-			/* simply print this char */
-			lcd_print(c);
-			break;
-		}
-	}
-
-	/*
-	 * now we'll see if we're in an escape mode and if the current
-	 * escape sequence can be understood.
-	 */
-	if (lcd.esc_seq.len >= 2) {
-		int processed = 0;
-
-		if (!strcmp(lcd.esc_seq.buf, "[2J")) {
-			/* clear the display */
-			lcd_clear_fast();
-			processed = 1;
-		} else if (!strcmp(lcd.esc_seq.buf, "[H")) {
-			/* cursor to home */
-			lcd.addr.x = 0;
-			lcd.addr.y = 0;
-			lcd_gotoxy();
-			processed = 1;
-		}
-		/* codes starting with ^[[L */
-		else if ((lcd.esc_seq.len >= 3) &&
-			 (lcd.esc_seq.buf[0] == '[') &&
-			 (lcd.esc_seq.buf[1] == 'L')) {
-			processed = handle_lcd_special_code();
-		}
-
-		/* LCD special escape codes */
-		/*
-		 * flush the escape sequence if it's been processed
-		 * or if it is getting too long.
-		 */
-		if (processed || (lcd.esc_seq.len >= LCD_ESCAPE_LEN))
-			lcd.esc_seq.len = -1;
-	} /* escape codes */
-}
-
-static ssize_t lcd_write(struct file *file,
-			 const char __user *buf, size_t count, loff_t *ppos)
-{
-	const char __user *tmp = buf;
-	char c;
-
-	for (; count-- > 0; (*ppos)++, tmp++) {
-		if (!in_interrupt() && (((count + 1) & 0x1f) == 0))
-			/*
-			 * let's be a little nice with other processes
-			 * that need some CPU
-			 */
-			schedule();
-
-		if (get_user(c, tmp))
-			return -EFAULT;
-
-		lcd_write_char(c);
-	}
-
-	return tmp - buf;
-}
-
-static int lcd_open(struct inode *inode, struct file *file)
-{
-	if (!atomic_dec_and_test(&lcd_available))
-		return -EBUSY;	/* open only once at a time */
-
-	if (file->f_mode & FMODE_READ)	/* device is write-only */
-		return -EPERM;
-
-	if (lcd.must_clear) {
-		lcd_clear_display();
-		lcd.must_clear = false;
-	}
-	return nonseekable_open(inode, file);
-}
-
-static int lcd_release(struct inode *inode, struct file *file)
-{
-	atomic_inc(&lcd_available);
-	return 0;
-}
-
-static const struct file_operations lcd_fops = {
-	.write   = lcd_write,
-	.open    = lcd_open,
-	.release = lcd_release,
-	.llseek  = no_llseek,
-};
-
-static struct miscdevice lcd_dev = {
-	.minor	= LCD_MINOR,
-	.name	= "lcd",
-	.fops	= &lcd_fops,
-};
-
-/* public function usable from the kernel for any purpose */
-static void panel_lcd_print(const char *s)
-{
-	const char *tmp = s;
-	int count = strlen(s);
-
-	if (lcd.enabled && lcd.initialized) {
-		for (; count-- > 0; tmp++) {
-			if (!in_interrupt() && (((count + 1) & 0x1f) == 0))
-				/*
-				 * let's be a little nice with other processes
-				 * that need some CPU
-				 */
-				schedule();
-
-			lcd_write_char(*tmp);
-		}
-	}
-}
-
-/* initialize the LCD driver */
-static void lcd_init(void)
-{
-	switch (selected_lcd_type) {
-	case LCD_TYPE_OLD:
-		/* parallel mode, 8 bits */
-		lcd.proto = LCD_PROTO_PARALLEL;
-		lcd.charset = LCD_CHARSET_NORMAL;
-		lcd.pins.e = PIN_STROBE;
-		lcd.pins.rs = PIN_AUTOLF;
-
-		lcd.width = 40;
-		lcd.bwidth = 40;
-		lcd.hwidth = 64;
-		lcd.height = 2;
-		break;
-	case LCD_TYPE_KS0074:
-		/* serial mode, ks0074 */
-		lcd.proto = LCD_PROTO_SERIAL;
-		lcd.charset = LCD_CHARSET_KS0074;
-		lcd.pins.bl = PIN_AUTOLF;
-		lcd.pins.cl = PIN_STROBE;
-		lcd.pins.da = PIN_D0;
-
-		lcd.width = 16;
-		lcd.bwidth = 40;
-		lcd.hwidth = 16;
-		lcd.height = 2;
-		break;
-	case LCD_TYPE_NEXCOM:
-		/* parallel mode, 8 bits, generic */
-		lcd.proto = LCD_PROTO_PARALLEL;
-		lcd.charset = LCD_CHARSET_NORMAL;
-		lcd.pins.e = PIN_AUTOLF;
-		lcd.pins.rs = PIN_SELECP;
-		lcd.pins.rw = PIN_INITP;
-
-		lcd.width = 16;
-		lcd.bwidth = 40;
-		lcd.hwidth = 64;
-		lcd.height = 2;
-		break;
-	case LCD_TYPE_CUSTOM:
-		/* customer-defined */
-		lcd.proto = DEFAULT_LCD_PROTO;
-		lcd.charset = DEFAULT_LCD_CHARSET;
-		/* default geometry will be set later */
-		break;
-	case LCD_TYPE_HANTRONIX:
-		/* parallel mode, 8 bits, hantronix-like */
-	default:
-		lcd.proto = LCD_PROTO_PARALLEL;
-		lcd.charset = LCD_CHARSET_NORMAL;
-		lcd.pins.e = PIN_STROBE;
-		lcd.pins.rs = PIN_SELECP;
-
-		lcd.width = 16;
-		lcd.bwidth = 40;
-		lcd.hwidth = 64;
-		lcd.height = 2;
-		break;
-	}
-
-	/* Overwrite with module params set on loading */
-	if (lcd_height != NOT_SET)
-		lcd.height = lcd_height;
-	if (lcd_width != NOT_SET)
-		lcd.width = lcd_width;
-	if (lcd_bwidth != NOT_SET)
-		lcd.bwidth = lcd_bwidth;
-	if (lcd_hwidth != NOT_SET)
-		lcd.hwidth = lcd_hwidth;
-	if (lcd_charset != NOT_SET)
-		lcd.charset = lcd_charset;
-	if (lcd_proto != NOT_SET)
-		lcd.proto = lcd_proto;
-	if (lcd_e_pin != PIN_NOT_SET)
-		lcd.pins.e = lcd_e_pin;
-	if (lcd_rs_pin != PIN_NOT_SET)
-		lcd.pins.rs = lcd_rs_pin;
-	if (lcd_rw_pin != PIN_NOT_SET)
-		lcd.pins.rw = lcd_rw_pin;
-	if (lcd_cl_pin != PIN_NOT_SET)
-		lcd.pins.cl = lcd_cl_pin;
-	if (lcd_da_pin != PIN_NOT_SET)
-		lcd.pins.da = lcd_da_pin;
-	if (lcd_bl_pin != PIN_NOT_SET)
-		lcd.pins.bl = lcd_bl_pin;
-
-	/* this is used to catch wrong and default values */
-	if (lcd.width <= 0)
-		lcd.width = DEFAULT_LCD_WIDTH;
-	if (lcd.bwidth <= 0)
-		lcd.bwidth = DEFAULT_LCD_BWIDTH;
-	if (lcd.hwidth <= 0)
-		lcd.hwidth = DEFAULT_LCD_HWIDTH;
-	if (lcd.height <= 0)
-		lcd.height = DEFAULT_LCD_HEIGHT;
-
-	if (lcd.proto == LCD_PROTO_SERIAL) {	/* SERIAL */
-		lcd_write_cmd = lcd_write_cmd_s;
-		lcd_write_data = lcd_write_data_s;
-		lcd_clear_fast = lcd_clear_fast_s;
-
-		if (lcd.pins.cl == PIN_NOT_SET)
-			lcd.pins.cl = DEFAULT_LCD_PIN_SCL;
-		if (lcd.pins.da == PIN_NOT_SET)
-			lcd.pins.da = DEFAULT_LCD_PIN_SDA;
-
-	} else if (lcd.proto == LCD_PROTO_PARALLEL) {	/* PARALLEL */
-		lcd_write_cmd = lcd_write_cmd_p8;
-		lcd_write_data = lcd_write_data_p8;
-		lcd_clear_fast = lcd_clear_fast_p8;
-
-		if (lcd.pins.e == PIN_NOT_SET)
-			lcd.pins.e = DEFAULT_LCD_PIN_E;
-		if (lcd.pins.rs == PIN_NOT_SET)
-			lcd.pins.rs = DEFAULT_LCD_PIN_RS;
-		if (lcd.pins.rw == PIN_NOT_SET)
-			lcd.pins.rw = DEFAULT_LCD_PIN_RW;
-	} else {
-		lcd_write_cmd = lcd_write_cmd_tilcd;
-		lcd_write_data = lcd_write_data_tilcd;
-		lcd_clear_fast = lcd_clear_fast_tilcd;
-	}
-
-	if (lcd.pins.bl == PIN_NOT_SET)
-		lcd.pins.bl = DEFAULT_LCD_PIN_BL;
-
-	if (lcd.pins.e == PIN_NOT_SET)
-		lcd.pins.e = PIN_NONE;
-	if (lcd.pins.rs == PIN_NOT_SET)
-		lcd.pins.rs = PIN_NONE;
-	if (lcd.pins.rw == PIN_NOT_SET)
-		lcd.pins.rw = PIN_NONE;
-	if (lcd.pins.bl == PIN_NOT_SET)
-		lcd.pins.bl = PIN_NONE;
-	if (lcd.pins.cl == PIN_NOT_SET)
-		lcd.pins.cl = PIN_NONE;
-	if (lcd.pins.da == PIN_NOT_SET)
-		lcd.pins.da = PIN_NONE;
-
-	if (lcd.charset == NOT_SET)
-		lcd.charset = DEFAULT_LCD_CHARSET;
-
-	if (lcd.charset == LCD_CHARSET_KS0074)
-		lcd_char_conv = lcd_char_conv_ks0074;
-	else
-		lcd_char_conv = NULL;
-
-	if (lcd.pins.bl != PIN_NONE)
-		init_scan_timer();
-
-	pin_to_bits(lcd.pins.e, lcd_bits[LCD_PORT_D][LCD_BIT_E],
-		    lcd_bits[LCD_PORT_C][LCD_BIT_E]);
-	pin_to_bits(lcd.pins.rs, lcd_bits[LCD_PORT_D][LCD_BIT_RS],
-		    lcd_bits[LCD_PORT_C][LCD_BIT_RS]);
-	pin_to_bits(lcd.pins.rw, lcd_bits[LCD_PORT_D][LCD_BIT_RW],
-		    lcd_bits[LCD_PORT_C][LCD_BIT_RW]);
-	pin_to_bits(lcd.pins.bl, lcd_bits[LCD_PORT_D][LCD_BIT_BL],
-		    lcd_bits[LCD_PORT_C][LCD_BIT_BL]);
-	pin_to_bits(lcd.pins.cl, lcd_bits[LCD_PORT_D][LCD_BIT_CL],
-		    lcd_bits[LCD_PORT_C][LCD_BIT_CL]);
-	pin_to_bits(lcd.pins.da, lcd_bits[LCD_PORT_D][LCD_BIT_DA],
-		    lcd_bits[LCD_PORT_C][LCD_BIT_DA]);
-
-	/*
-	 * before this line, we must NOT send anything to the display.
-	 * Since lcd_init_display() needs to write data, we have to
-	 * enable mark the LCD initialized just before.
-	 */
-	lcd.initialized = true;
-	lcd_init_display();
-
-	/* display a short message */
-#ifdef CONFIG_PANEL_CHANGE_MESSAGE
-#ifdef CONFIG_PANEL_BOOT_MESSAGE
-	panel_lcd_print("\x1b[Lc\x1b[Lb\x1b[L*" CONFIG_PANEL_BOOT_MESSAGE);
-#endif
-#else
-	panel_lcd_print("\x1b[Lc\x1b[Lb\x1b[L*Linux-" UTS_RELEASE "\nPanel-"
-			PANEL_VERSION);
-#endif
-	lcd.addr.x = 0;
-	lcd.addr.y = 0;
-	/* clear the display on the next device opening */
-	lcd.must_clear = true;
-	lcd_gotoxy();
-}
-
-/*
- * These are the file operation function for user access to /dev/keypad
- */
-
-static ssize_t keypad_read(struct file *file,
-			   char __user *buf, size_t count, loff_t *ppos)
-{
-	unsigned i = *ppos;
-	char __user *tmp = buf;
-
-	if (keypad_buflen == 0) {
-		if (file->f_flags & O_NONBLOCK)
-			return -EAGAIN;
-
-		if (wait_event_interruptible(keypad_read_wait,
-					     keypad_buflen != 0))
-			return -EINTR;
-	}
-
-	for (; count-- > 0 && (keypad_buflen > 0);
-	     ++i, ++tmp, --keypad_buflen) {
-		put_user(keypad_buffer[keypad_start], tmp);
-		keypad_start = (keypad_start + 1) % KEYPAD_BUFFER;
-	}
-	*ppos = i;
-
-	return tmp - buf;
-}
-
-static int keypad_open(struct inode *inode, struct file *file)
-{
-	if (!atomic_dec_and_test(&keypad_available))
-		return -EBUSY;	/* open only once at a time */
-
-	if (file->f_mode & FMODE_WRITE)	/* device is read-only */
-		return -EPERM;
-
-	keypad_buflen = 0;	/* flush the buffer on opening */
-	return 0;
-}
-
-static int keypad_release(struct inode *inode, struct file *file)
-{
-	atomic_inc(&keypad_available);
-	return 0;
-}
-
-static const struct file_operations keypad_fops = {
-	.read    = keypad_read,		/* read */
-	.open    = keypad_open,		/* open */
-	.release = keypad_release,	/* close */
-	.llseek  = default_llseek,
-};
-
-static struct miscdevice keypad_dev = {
-	.minor	= KEYPAD_MINOR,
-	.name	= "keypad",
-	.fops	= &keypad_fops,
-};
-
-static void keypad_send_key(const char *string, int max_len)
-{
-	/* send the key to the device only if a process is attached to it. */
-	if (!atomic_read(&keypad_available)) {
-		while (max_len-- && keypad_buflen < KEYPAD_BUFFER && *string) {
-			keypad_buffer[(keypad_start + keypad_buflen++) %
-				      KEYPAD_BUFFER] = *string++;
-		}
-		wake_up_interruptible(&keypad_read_wait);
-	}
-}
-
-/* this function scans all the bits involving at least one logical signal,
- * and puts the results in the bitfield "phys_read" (one bit per established
- * contact), and sets "phys_read_prev" to "phys_read".
- *
- * Note: to debounce input signals, we will only consider as switched a signal
- * which is stable across 2 measures. Signals which are different between two
- * reads will be kept as they previously were in their logical form (phys_prev).
- * A signal which has just switched will have a 1 in
- * (phys_read ^ phys_read_prev).
- */
-static void phys_scan_contacts(void)
-{
-	int bit, bitval;
-	char oldval;
-	char bitmask;
-	char gndmask;
-
-	phys_prev = phys_curr;
-	phys_read_prev = phys_read;
-	phys_read = 0;		/* flush all signals */
-
-	/* keep track of old value, with all outputs disabled */
-	oldval = r_dtr(pprt) | scan_mask_o;
-	/* activate all keyboard outputs (active low) */
-	w_dtr(pprt, oldval & ~scan_mask_o);
-
-	/* will have a 1 for each bit set to gnd */
-	bitmask = PNL_PINPUT(r_str(pprt)) & scan_mask_i;
-	/* disable all matrix signals */
-	w_dtr(pprt, oldval);
-
-	/* now that all outputs are cleared, the only active input bits are
-	 * directly connected to the ground
-	 */
-
-	/* 1 for each grounded input */
-	gndmask = PNL_PINPUT(r_str(pprt)) & scan_mask_i;
-
-	/* grounded inputs are signals 40-44 */
-	phys_read |= (__u64)gndmask << 40;
-
-	if (bitmask != gndmask) {
-		/*
-		 * since clearing the outputs changed some inputs, we know
-		 * that some input signals are currently tied to some outputs.
-		 * So we'll scan them.
-		 */
-		for (bit = 0; bit < 8; bit++) {
-			bitval = BIT(bit);
-
-			if (!(scan_mask_o & bitval))	/* skip unused bits */
-				continue;
-
-			w_dtr(pprt, oldval & ~bitval);	/* enable this output */
-			bitmask = PNL_PINPUT(r_str(pprt)) & ~gndmask;
-			phys_read |= (__u64)bitmask << (5 * bit);
-		}
-		w_dtr(pprt, oldval);	/* disable all outputs */
-	}
-	/*
-	 * this is easy: use old bits when they are flapping,
-	 * use new ones when stable
-	 */
-	phys_curr = (phys_prev & (phys_read ^ phys_read_prev)) |
-		    (phys_read & ~(phys_read ^ phys_read_prev));
-}
-
-static inline int input_state_high(struct logical_input *input)
-{
-#if 0
-	/* FIXME:
-	 * this is an invalid test. It tries to catch
-	 * transitions from single-key to multiple-key, but
-	 * doesn't take into account the contacts polarity.
-	 * The only solution to the problem is to parse keys
-	 * from the most complex to the simplest combinations,
-	 * and mark them as 'caught' once a combination
-	 * matches, then unmatch it for all other ones.
-	 */
-
-	/* try to catch dangerous transitions cases :
-	 * someone adds a bit, so this signal was a false
-	 * positive resulting from a transition. We should
-	 * invalidate the signal immediately and not call the
-	 * release function.
-	 * eg: 0 -(press A)-> A -(press B)-> AB : don't match A's release.
-	 */
-	if (((phys_prev & input->mask) == input->value) &&
-	    ((phys_curr & input->mask) >  input->value)) {
-		input->state = INPUT_ST_LOW; /* invalidate */
-		return 1;
-	}
-#endif
-
-	if ((phys_curr & input->mask) == input->value) {
-		if ((input->type == INPUT_TYPE_STD) &&
-		    (input->high_timer == 0)) {
-			input->high_timer++;
-			if (input->u.std.press_fct)
-				input->u.std.press_fct(input->u.std.press_data);
-		} else if (input->type == INPUT_TYPE_KBD) {
-			/* will turn on the light */
-			keypressed = 1;
-
-			if (input->high_timer == 0) {
-				char *press_str = input->u.kbd.press_str;
-
-				if (press_str[0]) {
-					int s = sizeof(input->u.kbd.press_str);
-
-					keypad_send_key(press_str, s);
-				}
-			}
-
-			if (input->u.kbd.repeat_str[0]) {
-				char *repeat_str = input->u.kbd.repeat_str;
-
-				if (input->high_timer >= KEYPAD_REP_START) {
-					int s = sizeof(input->u.kbd.repeat_str);
-
-					input->high_timer -= KEYPAD_REP_DELAY;
-					keypad_send_key(repeat_str, s);
-				}
-				/* we will need to come back here soon */
-				inputs_stable = 0;
-			}
-
-			if (input->high_timer < 255)
-				input->high_timer++;
-		}
-		return 1;
-	}
-
-	/* else signal falling down. Let's fall through. */
-	input->state = INPUT_ST_FALLING;
-	input->fall_timer = 0;
-
-	return 0;
-}
-
-static inline void input_state_falling(struct logical_input *input)
-{
-#if 0
-	/* FIXME !!! same comment as in input_state_high */
-	if (((phys_prev & input->mask) == input->value) &&
-	    ((phys_curr & input->mask) >  input->value)) {
-		input->state = INPUT_ST_LOW;	/* invalidate */
-		return;
-	}
-#endif
-
-	if ((phys_curr & input->mask) == input->value) {
-		if (input->type == INPUT_TYPE_KBD) {
-			/* will turn on the light */
-			keypressed = 1;
-
-			if (input->u.kbd.repeat_str[0]) {
-				char *repeat_str = input->u.kbd.repeat_str;
-
-				if (input->high_timer >= KEYPAD_REP_START) {
-					int s = sizeof(input->u.kbd.repeat_str);
-
-					input->high_timer -= KEYPAD_REP_DELAY;
-					keypad_send_key(repeat_str, s);
-				}
-				/* we will need to come back here soon */
-				inputs_stable = 0;
-			}
-
-			if (input->high_timer < 255)
-				input->high_timer++;
-		}
-		input->state = INPUT_ST_HIGH;
-	} else if (input->fall_timer >= input->fall_time) {
-		/* call release event */
-		if (input->type == INPUT_TYPE_STD) {
-			void (*release_fct)(int) = input->u.std.release_fct;
-
-			if (release_fct)
-				release_fct(input->u.std.release_data);
-		} else if (input->type == INPUT_TYPE_KBD) {
-			char *release_str = input->u.kbd.release_str;
-
-			if (release_str[0]) {
-				int s = sizeof(input->u.kbd.release_str);
-
-				keypad_send_key(release_str, s);
-			}
-		}
-
-		input->state = INPUT_ST_LOW;
-	} else {
-		input->fall_timer++;
-		inputs_stable = 0;
-	}
-}
-
-static void panel_process_inputs(void)
-{
-	struct list_head *item;
-	struct logical_input *input;
-
-	keypressed = 0;
-	inputs_stable = 1;
-	list_for_each(item, &logical_inputs) {
-		input = list_entry(item, struct logical_input, list);
-
-		switch (input->state) {
-		case INPUT_ST_LOW:
-			if ((phys_curr & input->mask) != input->value)
-				break;
-			/* if all needed ones were already set previously,
-			 * this means that this logical signal has been
-			 * activated by the releasing of another combined
-			 * signal, so we don't want to match.
-			 * eg: AB -(release B)-> A -(release A)-> 0 :
-			 *     don't match A.
-			 */
-			if ((phys_prev & input->mask) == input->value)
-				break;
-			input->rise_timer = 0;
-			input->state = INPUT_ST_RISING;
-			/* no break here, fall through */
-		case INPUT_ST_RISING:
-			if ((phys_curr & input->mask) != input->value) {
-				input->state = INPUT_ST_LOW;
-				break;
-			}
-			if (input->rise_timer < input->rise_time) {
-				inputs_stable = 0;
-				input->rise_timer++;
-				break;
-			}
-			input->high_timer = 0;
-			input->state = INPUT_ST_HIGH;
-			/* no break here, fall through */
-		case INPUT_ST_HIGH:
-			if (input_state_high(input))
-				break;
-			/* no break here, fall through */
-		case INPUT_ST_FALLING:
-			input_state_falling(input);
-		}
-	}
-}
-
-static void panel_scan_timer(void)
-{
-	if (keypad.enabled && keypad_initialized) {
-		if (spin_trylock_irq(&pprt_lock)) {
-			phys_scan_contacts();
-
-			/* no need for the parport anymore */
-			spin_unlock_irq(&pprt_lock);
-		}
-
-		if (!inputs_stable || phys_curr != phys_prev)
-			panel_process_inputs();
-	}
-
-	if (lcd.enabled && lcd.initialized) {
-		if (keypressed) {
-			if (lcd.light_tempo == 0 &&
-			    ((lcd.flags & LCD_FLAG_L) == 0))
-				lcd_backlight(1);
-			lcd.light_tempo = FLASH_LIGHT_TEMPO;
-		} else if (lcd.light_tempo > 0) {
-			lcd.light_tempo--;
-			if (lcd.light_tempo == 0 &&
-			    ((lcd.flags & LCD_FLAG_L) == 0))
-				lcd_backlight(0);
-		}
-	}
-
-	mod_timer(&scan_timer, jiffies + INPUT_POLL_TIME);
-}
-
-static void init_scan_timer(void)
-{
-	if (scan_timer.function)
-		return;		/* already started */
-
-	setup_timer(&scan_timer, (void *)&panel_scan_timer, 0);
-	scan_timer.expires = jiffies + INPUT_POLL_TIME;
-	add_timer(&scan_timer);
-}
-
-/* converts a name of the form "({BbAaPpSsEe}{01234567-})*" to a series of bits.
- * if <omask> or <imask> are non-null, they will be or'ed with the bits
- * corresponding to out and in bits respectively.
- * returns 1 if ok, 0 if error (in which case, nothing is written).
- */
-static u8 input_name2mask(const char *name, __u64 *mask, __u64 *value,
-			  u8 *imask, u8 *omask)
-{
-	const char sigtab[] = "EeSsPpAaBb";
-	u8 im, om;
-	__u64 m, v;
-
-	om = 0;
-	im = 0;
-	m = 0ULL;
-	v = 0ULL;
-	while (*name) {
-		int in, out, bit, neg;
-		const char *idx;
-
-		idx = strchr(sigtab, *name);
-		if (!idx)
-			return 0;	/* input name not found */
-
-		in = idx - sigtab;
-		neg = (in & 1);	/* odd (lower) names are negated */
-		in >>= 1;
-		im |= BIT(in);
-
-		name++;
-		if (*name >= '0' && *name <= '7') {
-			out = *name - '0';
-			om |= BIT(out);
-		} else if (*name == '-') {
-			out = 8;
-		} else {
-			return 0;	/* unknown bit name */
-		}
-
-		bit = (out * 5) + in;
-
-		m |= 1ULL << bit;
-		if (!neg)
-			v |= 1ULL << bit;
-		name++;
-	}
-	*mask = m;
-	*value = v;
-	if (imask)
-		*imask |= im;
-	if (omask)
-		*omask |= om;
-	return 1;
-}
-
-/* tries to bind a key to the signal name <name>. The key will send the
- * strings <press>, <repeat>, <release> for these respective events.
- * Returns the pointer to the new key if ok, NULL if the key could not be bound.
- */
-static struct logical_input *panel_bind_key(const char *name, const char *press,
-					    const char *repeat,
-					    const char *release)
-{
-	struct logical_input *key;
-
-	key = kzalloc(sizeof(*key), GFP_KERNEL);
-	if (!key)
-		return NULL;
-
-	if (!input_name2mask(name, &key->mask, &key->value, &scan_mask_i,
-			     &scan_mask_o)) {
-		kfree(key);
-		return NULL;
-	}
-
-	key->type = INPUT_TYPE_KBD;
-	key->state = INPUT_ST_LOW;
-	key->rise_time = 1;
-	key->fall_time = 1;
-
-	strncpy(key->u.kbd.press_str, press, sizeof(key->u.kbd.press_str));
-	strncpy(key->u.kbd.repeat_str, repeat, sizeof(key->u.kbd.repeat_str));
-	strncpy(key->u.kbd.release_str, release,
-		sizeof(key->u.kbd.release_str));
-	list_add(&key->list, &logical_inputs);
-	return key;
-}
-
-#if 0
-/* tries to bind a callback function to the signal name <name>. The function
- * <press_fct> will be called with the <press_data> arg when the signal is
- * activated, and so on for <release_fct>/<release_data>
- * Returns the pointer to the new signal if ok, NULL if the signal could not
- * be bound.
- */
-static struct logical_input *panel_bind_callback(char *name,
-						 void (*press_fct)(int),
-						 int press_data,
-						 void (*release_fct)(int),
-						 int release_data)
-{
-	struct logical_input *callback;
-
-	callback = kmalloc(sizeof(*callback), GFP_KERNEL);
-	if (!callback)
-		return NULL;
-
-	memset(callback, 0, sizeof(struct logical_input));
-	if (!input_name2mask(name, &callback->mask, &callback->value,
-			     &scan_mask_i, &scan_mask_o))
-		return NULL;
-
-	callback->type = INPUT_TYPE_STD;
-	callback->state = INPUT_ST_LOW;
-	callback->rise_time = 1;
-	callback->fall_time = 1;
-	callback->u.std.press_fct = press_fct;
-	callback->u.std.press_data = press_data;
-	callback->u.std.release_fct = release_fct;
-	callback->u.std.release_data = release_data;
-	list_add(&callback->list, &logical_inputs);
-	return callback;
-}
-#endif
-
-static void keypad_init(void)
-{
-	int keynum;
-
-	init_waitqueue_head(&keypad_read_wait);
-	keypad_buflen = 0;	/* flushes any eventual noisy keystroke */
-
-	/* Let's create all known keys */
-
-	for (keynum = 0; keypad_profile[keynum][0][0]; keynum++) {
-		panel_bind_key(keypad_profile[keynum][0],
-			       keypad_profile[keynum][1],
-			       keypad_profile[keynum][2],
-			       keypad_profile[keynum][3]);
-	}
-
-	init_scan_timer();
-	keypad_initialized = 1;
-}
-
-/**************************************************/
-/* device initialization                          */
-/**************************************************/
-
-static int panel_notify_sys(struct notifier_block *this, unsigned long code,
-			    void *unused)
-{
-	if (lcd.enabled && lcd.initialized) {
-		switch (code) {
-		case SYS_DOWN:
-			panel_lcd_print
-			    ("\x0cReloading\nSystem...\x1b[Lc\x1b[Lb\x1b[L+");
-			break;
-		case SYS_HALT:
-			panel_lcd_print
-			    ("\x0cSystem Halted.\x1b[Lc\x1b[Lb\x1b[L+");
-			break;
-		case SYS_POWER_OFF:
-			panel_lcd_print("\x0cPower off.\x1b[Lc\x1b[Lb\x1b[L+");
-			break;
-		default:
-			break;
-		}
-	}
-	return NOTIFY_DONE;
-}
-
-static struct notifier_block panel_notifier = {
-	panel_notify_sys,
-	NULL,
-	0
-};
-
-static void panel_attach(struct parport *port)
-{
-	struct pardev_cb panel_cb;
-
-	if (port->number != parport)
-		return;
-
-	if (pprt) {
-		pr_err("%s: port->number=%d parport=%d, already registered!\n",
-		       __func__, port->number, parport);
-		return;
-	}
-
-	memset(&panel_cb, 0, sizeof(panel_cb));
-	panel_cb.private = &pprt;
-	/* panel_cb.flags = 0 should be PARPORT_DEV_EXCL? */
-
-	pprt = parport_register_dev_model(port, "panel", &panel_cb, 0);
-	if (!pprt) {
-		pr_err("%s: port->number=%d parport=%d, parport_register_device() failed\n",
-		       __func__, port->number, parport);
-		return;
-	}
-
-	if (parport_claim(pprt)) {
-		pr_err("could not claim access to parport%d. Aborting.\n",
-		       parport);
-		goto err_unreg_device;
-	}
-
-	/* must init LCD first, just in case an IRQ from the keypad is
-	 * generated at keypad init
-	 */
-	if (lcd.enabled) {
-		lcd_init();
-		if (misc_register(&lcd_dev))
-			goto err_unreg_device;
-	}
-
-	if (keypad.enabled) {
-		keypad_init();
-		if (misc_register(&keypad_dev))
-			goto err_lcd_unreg;
-	}
-	register_reboot_notifier(&panel_notifier);
-	return;
-
-err_lcd_unreg:
-	if (lcd.enabled)
-		misc_deregister(&lcd_dev);
-err_unreg_device:
-	parport_unregister_device(pprt);
-	pprt = NULL;
-}
-
-static void panel_detach(struct parport *port)
-{
-	if (port->number != parport)
-		return;
-
-	if (!pprt) {
-		pr_err("%s: port->number=%d parport=%d, nothing to unregister.\n",
-		       __func__, port->number, parport);
-		return;
-	}
-	if (scan_timer.function)
-		del_timer_sync(&scan_timer);
-
-	if (pprt) {
-		if (keypad.enabled) {
-			misc_deregister(&keypad_dev);
-			keypad_initialized = 0;
-		}
-
-		if (lcd.enabled) {
-			panel_lcd_print("\x0cLCD driver " PANEL_VERSION
-					"\nunloaded.\x1b[Lc\x1b[Lb\x1b[L-");
-			misc_deregister(&lcd_dev);
-			lcd.initialized = false;
-		}
-
-		/* TODO: free all input signals */
-		parport_release(pprt);
-		parport_unregister_device(pprt);
-		pprt = NULL;
-		unregister_reboot_notifier(&panel_notifier);
-	}
-}
-
-static struct parport_driver panel_driver = {
-	.name = "panel",
-	.match_port = panel_attach,
-	.detach = panel_detach,
-	.devmodel = true,
-};
-
-/* init function */
-static int __init panel_init_module(void)
-{
-	int selected_keypad_type = NOT_SET, err;
-
-	/* take care of an eventual profile */
-	switch (profile) {
-	case PANEL_PROFILE_CUSTOM:
-		/* custom profile */
-		selected_keypad_type = DEFAULT_KEYPAD_TYPE;
-		selected_lcd_type = DEFAULT_LCD_TYPE;
-		break;
-	case PANEL_PROFILE_OLD:
-		/* 8 bits, 2*16, old keypad */
-		selected_keypad_type = KEYPAD_TYPE_OLD;
-		selected_lcd_type = LCD_TYPE_OLD;
-
-		/* TODO: This two are a little hacky, sort it out later */
-		if (lcd_width == NOT_SET)
-			lcd_width = 16;
-		if (lcd_hwidth == NOT_SET)
-			lcd_hwidth = 16;
-		break;
-	case PANEL_PROFILE_NEW:
-		/* serial, 2*16, new keypad */
-		selected_keypad_type = KEYPAD_TYPE_NEW;
-		selected_lcd_type = LCD_TYPE_KS0074;
-		break;
-	case PANEL_PROFILE_HANTRONIX:
-		/* 8 bits, 2*16 hantronix-like, no keypad */
-		selected_keypad_type = KEYPAD_TYPE_NONE;
-		selected_lcd_type = LCD_TYPE_HANTRONIX;
-		break;
-	case PANEL_PROFILE_NEXCOM:
-		/* generic 8 bits, 2*16, nexcom keypad, eg. Nexcom. */
-		selected_keypad_type = KEYPAD_TYPE_NEXCOM;
-		selected_lcd_type = LCD_TYPE_NEXCOM;
-		break;
-	case PANEL_PROFILE_LARGE:
-		/* 8 bits, 2*40, old keypad */
-		selected_keypad_type = KEYPAD_TYPE_OLD;
-		selected_lcd_type = LCD_TYPE_OLD;
-		break;
-	}
-
-	/*
-	 * Overwrite selection with module param values (both keypad and lcd),
-	 * where the deprecated params have lower prio.
-	 */
-	if (keypad_enabled != NOT_SET)
-		selected_keypad_type = keypad_enabled;
-	if (keypad_type != NOT_SET)
-		selected_keypad_type = keypad_type;
-
-	keypad.enabled = (selected_keypad_type > 0);
-
-	if (lcd_enabled != NOT_SET)
-		selected_lcd_type = lcd_enabled;
-	if (lcd_type != NOT_SET)
-		selected_lcd_type = lcd_type;
-
-	lcd.enabled = (selected_lcd_type > 0);
-
-	if (lcd.enabled) {
-		/*
-		 * Init lcd struct with load-time values to preserve exact
-		 * current functionality (at least for now).
-		 */
-		lcd.height = lcd_height;
-		lcd.width = lcd_width;
-		lcd.bwidth = lcd_bwidth;
-		lcd.hwidth = lcd_hwidth;
-		lcd.charset = lcd_charset;
-		lcd.proto = lcd_proto;
-		lcd.pins.e = lcd_e_pin;
-		lcd.pins.rs = lcd_rs_pin;
-		lcd.pins.rw = lcd_rw_pin;
-		lcd.pins.cl = lcd_cl_pin;
-		lcd.pins.da = lcd_da_pin;
-		lcd.pins.bl = lcd_bl_pin;
-
-		/* Leave it for now, just in case */
-		lcd.esc_seq.len = -1;
-	}
-
-	switch (selected_keypad_type) {
-	case KEYPAD_TYPE_OLD:
-		keypad_profile = old_keypad_profile;
-		break;
-	case KEYPAD_TYPE_NEW:
-		keypad_profile = new_keypad_profile;
-		break;
-	case KEYPAD_TYPE_NEXCOM:
-		keypad_profile = nexcom_keypad_profile;
-		break;
-	default:
-		keypad_profile = NULL;
-		break;
-	}
-
-	if (!lcd.enabled && !keypad.enabled) {
-		/* no device enabled, let's exit */
-		pr_err("driver version " PANEL_VERSION " disabled.\n");
-		return -ENODEV;
-	}
-
-	err = parport_register_driver(&panel_driver);
-	if (err) {
-		pr_err("could not register with parport. Aborting.\n");
-		return err;
-	}
-
-	if (pprt)
-		pr_info("driver version " PANEL_VERSION
-			" registered on parport%d (io=0x%lx).\n", parport,
-			pprt->port->base);
-	else
-		pr_info("driver version " PANEL_VERSION
-			" not yet registered\n");
-	return 0;
-}
-
-static void __exit panel_cleanup_module(void)
-{
-	parport_unregister_driver(&panel_driver);
-}
-
-module_init(panel_init_module);
-module_exit(panel_cleanup_module);
-MODULE_AUTHOR("Willy Tarreau");
-MODULE_LICENSE("GPL");
-
-/*
- * Local variables:
- *  c-indent-level: 4
- *  tab-width: 8
- * End:
- */