fipkernel.c

1. 8623L平台

/*****************************************
 *  Copyright © 2001-2007
 *  Sigma Designs, Inc. All Rights Reserved
 *  Proprietary and Confidential
 *  Modified for KiSS Front Panel support
 *  By Stefan Hallas Andersen
 ******************************************/

#ifdef __KERNEL__ 
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/irq.h>
#include <linux/devfs_fs_kernel.h>
#include <linux/poll.h>
#include <linux/interrupt.h>
#include <linux/timer.h>
#include <asm/hardware.h>
#include <asm/delay.h>
#else
#include "version.h"
#include "config.h"
#endif /* __KERNEL__ */

#include "fip.h"

/* chip specific register definitions */

/* EM85XX */
#if 0
#define	FIP_BASE				0x00500D00
#define	FIP_COMMAND				0x00
#define	FIP_DISPLAY_DATA			0x04
#define	FIP_LED_DATA				0x08
#define	FIP_KEY_DATA1				0x0C
#define	FIP_KEY_DATA2				0x10
#define	FIP_SWITCH_DATA				0x14
#define	FIP_CLK_DIV				0x20
#define	FIP_TRISTATE_MODE			0x24

#define FIP_TRISTATE_MODE_MASK			0x2
#define FIP_DIVIDER				40
#endif

#ifndef CONFIG_ARCH_TANGO
#error "Only Tango is supported/tested."
#endif

/* EM86XX */
#define	FIP_BASE				0x10500
#define	FIP_COMMAND				0x40
#define	FIP_DISPLAY_DATA			0x44
#define	FIP_LED_DATA				0x48
#define	FIP_KEY_DATA1				0x4c
#define	FIP_KEY_DATA2				0x50
#define	FIP_SWITCH_DATA				0x54
#define FIP_CONFIG				0x58
#define FIP_INT					0x5c

#if defined(CONFIG_EM86XX_FIP_REF1)
#define FIP_DIVIDER				27	/* default value */
#elif defined(CONFIG_EM86XX_FIP_REF2)
#define FIP_DIVIDER				54	/* default value */
#endif

#define FIP_BUSY				0x200
#define FIP_ENABLE				0x400

/* FIP commands							*/
#define	FIP_CMD_DISP_MODE_08DIGITS_20SEGMENTS		0x00
#define	FIP_CMD_DISP_MODE_09DIGITS_19SEGMENTS		0x08
#define	FIP_CMD_DISP_MODE_10DIGITS_18SEGMENTS		0x09
#define	FIP_CMD_DISP_MODE_11DIGITS_17SEGMENTS		0x0a
#define	FIP_CMD_DISP_MODE_12DIGITS_16SEGMENTS		0x0b
#define	FIP_CMD_DISP_MODE_13DIGITS_15SEGMENTS		0x0c
#define	FIP_CMD_DISP_MODE_14DIGITS_14SEGMENTS		0x0d
#define	FIP_CMD_DISP_MODE_15DIGITS_13SEGMENTS		0x0e
#define	FIP_CMD_DISP_MODE_16DIGITS_12SEGMENTS		0x0f
#define	FIP_CMD_DATA_SET_RW_MODE_WRITE_DISPLAY		0x40
#define	FIP_CMD_DATA_SET_RW_MODE_WRITE_LED_PORT		0x41
#define	FIP_CMD_DATA_SET_RW_MODE_READ_KEYS		0x42
#define	FIP_CMD_DATA_SET_RW_MODE_READ_SWITCHES		0x43
#define	FIP_CMD_DATA_SET_ADR_MODE_INCREMENT_ADR		0x40
#define	FIP_CMD_DATA_SET_ADR_MODE_FIXED_ADR		0x44
#define	FIP_CMD_DATA_SET_OP_MODE_NORMAL_OPERATION	0x40
#define	FIP_CMD_DATA_SET_OP_MODE_TEST_MODE		0x48
#define	FIP_CMD_ADR_SETTING				0xC0
#define	FIP_CMD_DISP_CTRL_PULSE_WIDTH_1_16		0x80
#define	FIP_CMD_DISP_CTRL_PULSE_WIDTH_2_16		0x81
#define	FIP_CMD_DISP_CTRL_PULSE_WIDTH_4_16		0x82
#define	FIP_CMD_DISP_CTRL_PULSE_WIDTH_10_16		0x83
#define	FIP_CMD_DISP_CTRL_PULSE_WIDTH_11_16		0x84
#define	FIP_CMD_DISP_CTRL_PULSE_WIDTH_12_16		0x85
#define	FIP_CMD_DISP_CTRL_PULSE_WIDTH_13_16		0x86
#define	FIP_CMD_DISP_CTRL_PULSE_WIDTH_14_16		0x87
#define	FIP_CMD_DISP_CTRL_TURN_DISPLAY_OFF_MASK		0x87
#define	FIP_CMD_DISP_CTRL_TURN_DISPLAY_ON		0x88

#if defined(CONFIG_EM86XX_FIP_REF1)
#define FIP_DISPLAY_MODE	0xa
#define MAX_FIP_RAM		23
#define NUM_SYMBOLS		23
#define NUM_CHARACTERS		72
#define NUM_DIGITS		7
#elif defined(CONFIG_EM86XX_FIP_REF2)
#define FIP_DISPLAY_MODE	0x0a
#define MAX_FIP_RAM		0x2f
#define NUM_SYMBOLS		206
#define NUM_CHARACTERS		69
#define NUM_X_CHARACTERS	12
#define NUM_DIGITS		8
#define NUM_X_DIGITS		4
#endif

#define L_OFF			-1	//means light is or should be off
#define FIP_NO_CLEAR		0x0004

#if defined(CONFIG_EM86XX_FIP_REF1)
/*
  14 SEGMENT LCD (EXTENDED CHARACTERS MAP)

     a 
   -----
f |\j| /| b 
  |i\|/k|
  g-- --h
e |n/|\l| c
  |/m| \|
   -----
     d   
*/
#define DIGIT_L(b7,b6,c,l,m,n,e,d)	((b7 << 7) | (b6 << 6) | (c << 5) | (l << 4) | (m << 3) | (n << 2) | (e << 1) | d)
#define DIGIT_H(g,h,i,j,k,a,b,f)	((g << 7) | (h << 6) | (i << 5) | (j << 4) | (k << 3) | (a << 2) | (b << 1) | f)

/* sequence must match fipcharacters */
static const char fipcharactersmap[NUM_CHARACTERS+1] = " +-/0123456789<>ABCDEFGHIJKLMNOPQRSTUVWXYZ\\-abcdefghijklmnopqrstuvwxyz|_";
#elif defined(CONFIG_EM86XX_FIP_REF2)
#define DIGIT_L(M,C,E,R,P,B,D,U)	((M << 7) | (C << 6) | (E << 5) | (R << 4) | (P << 3) | (B << 2) | (D << 1) | U)
#define DIGIT_H(A,B,F,H,J,K,G,S)	((A << 7) | (B << 6) | (F << 5) | (H << 4) | (J << 3) | (K << 2) | (G << 1) | S)
// Following definition is for Title/Track/Chaspter digits
#define DIGIT_X(A,B,F,G,C,E,D,U)		((A << 7) | (B << 6) | (F << 5) | (G << 4) | (C << 3) | (E << 2) | (D << 1) | U)
 
static const char fipcharactersmap[NUM_CHARACTERS+1] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ !\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~";
static const char fipxcharactersmap[NUM_X_CHARACTERS+1] = "0123456789- ";
#endif

/* we use the inverted mask for clearing a digit without clearing other things */
static const char fipcharactermask[2] = {
#if defined(CONFIG_EM86XX_FIP_REF1)
	DIGIT_L(1,1,0,0,0,0,0,0), 
	DIGIT_H(0,0,0,0,0,0,0,0)
#elif defined(CONFIG_EM86XX_FIP_REF2)
	DIGIT_L(0,0,0,0,0,0,0,0), 
	DIGIT_H(0,0,0,0,0,0,0,0)
#endif
};

#if defined(CONFIG_EM86XX_FIP_REF1)
/* the format is lower byte, higher byte */
static const char fipcharacters[NUM_CHARACTERS][2] = {
	{DIGIT_L(0,0,0,0,0,0,0,0), DIGIT_H(0,0,0,0,0,0,0,0)},	//
	{DIGIT_L(0,0,0,0,1,0,0,0), DIGIT_H(1,1,0,1,0,0,0,0)},	// +
	{DIGIT_L(0,0,0,0,0,0,0,0), DIGIT_H(1,1,0,0,0,0,0,0)},	// -
	{DIGIT_L(0,0,0,0,1,0,0,0), DIGIT_H(0,0,0,0,1,0,0,0)},	// /

	{DIGIT_L(0,0,1,0,0,0,1,1), DIGIT_H(0,0,0,0,0,1,1,1)},	// 0
	{DIGIT_L(0,0,0,0,1,0,0,0), DIGIT_H(0,0,0,1,0,0,0,0)},	// 1
	{DIGIT_L(0,0,0,0,0,0,1,1), DIGIT_H(1,1,0,0,0,1,1,0)},	// 2
	{DIGIT_L(0,0,1,0,0,0,0,1), DIGIT_H(1,1,0,0,0,1,1,0)},	// 3
	{DIGIT_L(0,0,1,0,0,0,0,0), DIGIT_H(1,1,0,0,0,0,1,1)},	// 4
	{DIGIT_L(0,0,1,0,0,0,0,1), DIGIT_H(1,1,0,0,0,1,0,1)},	// 5
	{DIGIT_L(0,0,1,0,0,0,1,1), DIGIT_H(1,1,0,0,0,1,0,1)},	// 6
	{DIGIT_L(0,0,1,0,0,0,0,0), DIGIT_H(0,0,0,0,0,1,1,0)},	// 7
	{DIGIT_L(0,0,1,0,0,0,1,1), DIGIT_H(1,1,0,0,0,1,1,1)},	// 8
	{DIGIT_L(0,0,1,0,0,0,0,1), DIGIT_H(1,1,0,0,0,1,1,1)},	// 9

	{DIGIT_L(0,0,0,1,0,0,0,0), DIGIT_H(0,0,0,0,1,0,0,0)},	// <
	{DIGIT_L(0,0,0,0,0,1,0,0), DIGIT_H(0,0,0,1,0,0,0,0)},	// >

	{DIGIT_L(0,0,1,0,0,0,1,0), DIGIT_H(1,1,0,0,0,1,1,1)},	// A
	{DIGIT_L(0,0,1,0,1,0,0,1), DIGIT_H(0,1,0,1,0,1,1,0)},	// B
	{DIGIT_L(0,0,0,0,0,0,1,1), DIGIT_H(0,0,0,0,0,1,0,1)},	// C
	{DIGIT_L(0,0,1,0,1,0,0,1), DIGIT_H(0,0,0,1,0,1,1,0)},	// D
	{DIGIT_L(0,0,0,0,0,0,1,1), DIGIT_H(1,1,0,0,0,1,0,1)},	// E
	{DIGIT_L(0,0,0,0,0,0,1,0), DIGIT_H(1,1,0,0,0,1,0,1)},	// F
	{DIGIT_L(0,0,1,0,0,0,1,1), DIGIT_H(1,1,0,0,0,1,0,1)},	// G
	{DIGIT_L(0,0,1,0,0,0,1,0), DIGIT_H(1,1,0,0,0,0,1,1)},	// H
	{DIGIT_L(0,0,0,0,1,0,0,1), DIGIT_H(0,0,0,1,0,1,0,0)},	// I
	{DIGIT_L(0,0,1,0,0,0,0,1), DIGIT_H(0,0,0,0,0,0,1,0)},	// J
	{DIGIT_L(0,0,0,1,0,0,1,0), DIGIT_H(1,0,0,0,1,0,0,1)},	// K
	{DIGIT_L(0,0,0,0,0,0,1,1), DIGIT_H(0,0,0,0,0,0,0,1)},	// L
	{DIGIT_L(0,0,1,0,0,0,1,0), DIGIT_H(0,0,1,0,1,0,1,1)},	// M
	{DIGIT_L(0,0,1,1,0,0,1,0), DIGIT_H(0,0,1,0,0,0,1,1)},	// N
	{DIGIT_L(0,0,1,0,0,0,1,1), DIGIT_H(0,0,0,0,0,1,1,1)},	// O
	{DIGIT_L(0,0,0,0,0,0,1,0), DIGIT_H(1,1,0,0,0,1,1,1)},	// P
	{DIGIT_L(0,0,1,1,0,0,1,1), DIGIT_H(0,0,0,0,0,1,1,1)},	// Q
	{DIGIT_L(0,0,0,1,0,0,1,0), DIGIT_H(1,1,0,0,0,1,1,1)},	// R
	{DIGIT_L(0,0,1,0,0,0,0,1), DIGIT_H(1,1,0,0,0,1,0,1)},	// S
	{DIGIT_L(0,0,0,0,1,0,0,0), DIGIT_H(0,0,0,1,0,1,0,0)},	// T
	{DIGIT_L(0,0,1,0,0,0,1,1), DIGIT_H(0,0,0,0,0,0,1,1)},	// U
	{DIGIT_L(0,0,1,1,0,0,0,0), DIGIT_H(0,0,1,0,0,0,1,0)},	// V
	{DIGIT_L(0,0,1,1,0,1,1,0), DIGIT_H(0,0,0,0,0,0,1,1)},	// W
	{DIGIT_L(0,0,0,1,0,1,0,0), DIGIT_H(0,0,1,0,1,0,0,0)},	// X
	{DIGIT_L(0,0,0,0,1,0,0,0), DIGIT_H(0,0,1,0,1,0,0,0)},	// Y
	{DIGIT_L(0,0,0,0,0,1,0,1), DIGIT_H(0,0,0,0,1,1,0,0)},	// Z

	{DIGIT_L(0,0,0,1,0,0,0,0), DIGIT_H(0,0,1,0,0,0,0,0)},	// Slash
	{DIGIT_L(0,0,0,0,0,0,0,0), DIGIT_H(1,1,0,0,0,0,0,0)},	// -

	{DIGIT_L(0,0,1,0,0,0,1,1), DIGIT_H(1,1,0,0,0,0,0,0)},	// a
	{DIGIT_L(0,0,1,0,0,0,1,1), DIGIT_H(1,1,0,0,0,0,0,1)},	// b
	{DIGIT_L(0,0,0,0,0,0,1,1), DIGIT_H(1,1,0,0,0,0,0,0)},	// c
	{DIGIT_L(0,0,1,0,0,0,1,1), DIGIT_H(1,1,0,0,0,0,1,0)},	// d
	{DIGIT_L(0,0,0,0,0,0,1,1), DIGIT_H(1,1,0,0,0,1,1,1)},	// e
	{DIGIT_L(0,0,0,0,0,0,1,0), DIGIT_H(1,0,0,0,0,1,0,1)},	// f
	{DIGIT_L(0,0,1,0,0,0,0,1), DIGIT_H(1,1,0,0,0,1,1,1)},	// g
	{DIGIT_L(0,0,1,0,0,0,1,0), DIGIT_H(1,1,0,0,0,0,0,1)},	// h
	{DIGIT_L(0,0,0,0,1,0,0,0), DIGIT_H(0,0,0,0,0,0,0,0)},	// i
	{DIGIT_L(0,0,1,0,0,0,0,1), DIGIT_H(0,0,0,0,0,0,0,0)},	// j
	{DIGIT_L(0,0,0,1,1,0,0,0), DIGIT_H(0,1,0,1,0,0,0,0)},	// k
	{DIGIT_L(0,0,0,0,0,0,1,1), DIGIT_H(0,0,0,0,0,0,0,1)},	// l
	{DIGIT_L(0,0,1,0,1,0,1,0), DIGIT_H(1,1,0,0,0,0,0,0)},	// m
	{DIGIT_L(0,0,1,0,0,0,1,0), DIGIT_H(1,1,0,0,0,0,0,0)},	// n
	{DIGIT_L(0,0,1,0,0,0,1,1), DIGIT_H(1,1,0,0,0,0,0,0)},	// o
	{DIGIT_L(0,0,0,0,0,0,1,0), DIGIT_H(1,1,0,0,0,1,1,1)},	// p
	{DIGIT_L(0,0,1,0,0,0,0,0), DIGIT_H(1,1,0,0,0,1,1,1)},	// q
	{DIGIT_L(0,0,0,0,0,0,1,0), DIGIT_H(1,0,0,0,0,0,0,0)},	// r
	{DIGIT_L(0,0,1,0,0,0,0,1), DIGIT_H(1,1,0,0,0,1,0,1)},	// s
	{DIGIT_L(0,0,0,0,0,0,1,1), DIGIT_H(1,0,0,0,0,0,0,1)},	// t
	{DIGIT_L(0,0,1,0,0,0,1,1), DIGIT_H(0,0,0,0,0,0,0,0)},	// u
	{DIGIT_L(0,0,1,1,0,0,0,0), DIGIT_H(0,0,0,0,0,0,0,0)},	// v
	{DIGIT_L(0,0,1,1,0,1,1,0), DIGIT_H(0,0,0,0,0,0,0,0)},	// w
	{DIGIT_L(0,0,0,1,1,0,0,0), DIGIT_H(1,1,0,0,0,0,0,0)},	// x
	{DIGIT_L(0,0,0,0,1,0,0,0), DIGIT_H(0,0,0,1,1,0,0,0)},	// y
	{DIGIT_L(0,0,0,0,1,0,0,1), DIGIT_H(1,1,0,0,0,0,0,0)},	// z

	{DIGIT_L(0,0,0,0,1,0,0,0), DIGIT_H(0,0,0,1,0,0,0,0)},	// |
	{DIGIT_L(0,0,0,0,0,0,0,1), DIGIT_H(0,0,0,0,0,0,0,0)}	// _
};
#elif defined(CONFIG_EM86XX_FIP_REF2)
/* the format is lower byte, higher byte */
static const char fipcharacters[NUM_CHARACTERS][2] = {
	{DIGIT_L(0,1,1,0,0,0,1,1), DIGIT_H(1,1,1,0,0,0,0,0)},	// 0
	{DIGIT_L(0,0,0,0,1,0,0,1), DIGIT_H(0,0,0,0,1,0,0,1)},	// 1
	{DIGIT_L(1,0,1,0,0,0,1,1), DIGIT_H(1,1,0,0,0,0,1,1)},	// 2
	{DIGIT_L(1,1,0,0,0,0,1,1), DIGIT_H(1,1,0,0,0,0,0,0)},	// 3
	{DIGIT_L(1,1,0,0,0,0,0,1), DIGIT_H(0,1,1,0,0,0,1,1)},	// 4
	{DIGIT_L(1,1,0,0,0,0,1,1), DIGIT_H(1,0,1,0,0,0,1,1)},	// 5
	{DIGIT_L(1,1,1,0,0,0,1,1), DIGIT_H(1,0,1,0,0,0,1,1)},	// 6
	{DIGIT_L(0,1,0,0,0,0,0,1), DIGIT_H(1,1,0,0,0,0,0,0)},	// 7
	{DIGIT_L(1,1,1,0,0,0,1,1), DIGIT_H(1,1,1,0,0,0,1,1)},	// 8
	{DIGIT_L(1,1,0,0,0,0,0,1), DIGIT_H(1,1,1,0,0,0,1,1)},	// 9
	{DIGIT_L(1,1,1,0,0,0,0,0), DIGIT_H(1,1,1,0,0,0,1,1)},	// A
	{DIGIT_L(1,1,0,0,1,0,1,0), DIGIT_H(1,1,0,0,1,0,0,1)},	// B
	{DIGIT_L(0,0,1,0,0,0,1,0), DIGIT_H(1,0,1,0,0,0,0,0)},	// C
	{DIGIT_L(0,1,0,0,1,0,1,0), DIGIT_H(1,1,0,0,1,0,0,1)},	// D
	{DIGIT_L(1,0,1,0,0,0,1,0), DIGIT_H(1,0,1,0,0,0,1,1)},	// E
	{DIGIT_L(0,0,1,0,0,0,0,0), DIGIT_H(1,0,1,0,0,0,1,1)},	// F
	{DIGIT_L(1,1,1,0,0,0,1,0), DIGIT_H(1,0,1,0,0,0,0,0)},	// G
	{DIGIT_L(1,1,1,0,0,0,0,0), DIGIT_H(0,1,1,0,0,0,1,1)},	// H
	{DIGIT_L(0,0,0,0,1,0,0,0), DIGIT_H(0,0,0,0,1,0,0,1)},	// I
	{DIGIT_L(0,1,1,0,0,0,1,0), DIGIT_H(0,1,0,0,0,0,0,0)},	// J
	{DIGIT_L(0,0,1,0,0,1,0,0), DIGIT_H(0,0,1,0,0,1,1,1)},	// K
	{DIGIT_L(0,0,1,0,0,0,1,0), DIGIT_H(0,0,1,0,0,0,0,0)},	// L
	{DIGIT_L(0,1,1,0,0,0,0,0), DIGIT_H(0,1,1,1,0,1,0,1)},	// M
	{DIGIT_L(0,1,1,0,0,1,0,0), DIGIT_H(0,1,1,1,0,0,0,1)},	// N
	{DIGIT_L(0,1,1,0,0,0,1,0), DIGIT_H(1,1,1,0,0,0,0,0)},	// O
	{DIGIT_L(1,0,1,0,0,0,0,0), DIGIT_H(1,1,1,0,0,0,1,1)},	// P
	{DIGIT_L(0,1,1,0,0,1,1,0), DIGIT_H(1,1,1,0,0,0,0,0)},	// Q
	{DIGIT_L(1,0,1,0,0,1,0,0), DIGIT_H(1,1,1,0,0,0,1,1)},	// R
	{DIGIT_L(1,1,0,0,0,0,1,0), DIGIT_H(1,0,1,0,0,0,1,1)},	// S
	{DIGIT_L(0,0,0,0,1,0,0,0), DIGIT_H(1,0,0,0,1,0,0,1)},	// T
	{DIGIT_L(0,1,1,0,0,0,1,0), DIGIT_H(0,1,1,0,0,0,0,0)},	// U
	{DIGIT_L(0,0,1,1,0,0,0,0), DIGIT_H(0,0,1,0,0,1,0,1)},	// V
	{DIGIT_L(0,1,1,1,0,1,0,0), DIGIT_H(0,1,1,0,0,0,0,1)},	// W
	{DIGIT_L(0,0,0,1,0,1,0,0), DIGIT_H(0,0,0,1,0,1,0,0)},	// X
	{DIGIT_L(0,0,0,0,1,0,0,0), DIGIT_H(0,0,0,1,0,1,0,1)},	// Y
	{DIGIT_L(0,0,0,1,0,0,1,0), DIGIT_H(1,0,0,0,0,1,0,1)},	// Z
	{0,0},							// Space
	{DIGIT_L(0,0,0,0,1,0,0,0), DIGIT_H(0,0,0,0,1,0,0,1)},	// !
	{DIGIT_L(0,0,0,0,0,0,0,0), DIGIT_H(0,0,1,0,1,0,0,0)},	// "
	{DIGIT_L(1,0,0,1,1,0,0,0), DIGIT_H(0,0,0,1,1,0,1,1)},	// #
	{DIGIT_L(1,1,0,0,1,0,1,0), DIGIT_H(1,0,1,0,1,0,1,1)},	// $
	{DIGIT_L(0,1,0,1,0,0,0,0), DIGIT_H(0,0,1,0,0,1,0,1)},	// %
	{DIGIT_L(0,0,1,0,1,0,1,0), DIGIT_H(1,0,0,1,0,1,1,1)},	// &
	{DIGIT_L(0,0,0,0,0,0,0,0), DIGIT_H(0,0,0,0,0,1,0,0)},	// '
	{DIGIT_L(0,0,0,0,0,1,0,0), DIGIT_H(0,0,0,0,0,1,0,0)}, 	// (
	{DIGIT_L(0,0,0,1,0,0,0,0), DIGIT_H(0,0,0,1,0,0,0,0)}, 	// )
	{DIGIT_L(1,0,0,1,1,1,0,0), DIGIT_H(0,0,0,1,1,1,1,1)}, 	// *
	{DIGIT_L(1,0,0,0,1,0,0,0), DIGIT_H(0,0,0,0,1,0,1,1)}, 	// +
	{DIGIT_L(0,0,0,1,0,0,0,0), DIGIT_H(0,0,0,0,0,0,0,0)}, 	// ,
	{DIGIT_L(1,0,0,0,0,0,0,0), DIGIT_H(0,0,0,0,0,0,1,1)}, 	// -
	{DIGIT_L(0,0,0,0,0,0,0,0), DIGIT_H(0,0,0,0,0,0,0,1)}, 	// .
	{DIGIT_L(0,0,0,1,0,0,0,0), DIGIT_H(0,0,0,0,0,1,0,1)}, 	// /
	{DIGIT_L(0,0,0,0,1,0,0,0), DIGIT_H(0,0,0,0,0,0,0,1)}, 	// :
	{DIGIT_L(0,0,0,1,0,0,0,0), DIGIT_H(0,0,0,0,0,0,0,1)}, 	// ;
	{DIGIT_L(0,0,0,0,0,1,0,0), DIGIT_H(0,0,0,0,0,1,0,1)}, 	// <
	{DIGIT_L(1,0,0,0,0,0,1,0), DIGIT_H(0,0,0,0,0,0,1,1)}, 	// =
	{DIGIT_L(0,0,0,1,0,0,0,0), DIGIT_H(0,0,0,1,0,0,0,1)}, 	// >
	{DIGIT_L(0,0,0,0,1,0,0,0), DIGIT_H(1,0,1,0,0,1,0,1)}, 	// ?
	{DIGIT_L(1,0,1,0,0,0,1,0), DIGIT_H(1,1,1,0,1,1,0,1)}, 	// @
	{DIGIT_L(0,0,0,1,0,0,1,0), DIGIT_H(1,0,0,1,0,0,0,0)}, 	// [
	{DIGIT_L(0,0,0,0,0,1,0,0), DIGIT_H(0,0,0,1,0,0,0,1)}, 	// / 
	{DIGIT_L(0,1,0,0,0,0,1,0), DIGIT_H(1,1,0,0,0,0,0,0)}, 	// ]
	{DIGIT_L(0,0,0,1,0,1,0,0), DIGIT_H(0,0,0,0,0,0,0,1)}, 	// ^
	{DIGIT_L(0,0,0,0,0,0,1,0), DIGIT_H(0,0,0,0,0,0,0,0)}, 	// _
	{DIGIT_L(0,0,0,0,0,0,0,0), DIGIT_H(0,0,0,1,0,0,0,0)}, 	// `
	{DIGIT_L(0,0,0,1,0,0,1,0), DIGIT_H(1,0,0,1,0,0,1,0)}, 	// {
	{DIGIT_L(0,0,0,0,1,0,0,0), DIGIT_H(0,0,0,0,1,0,0,1)}, 	// |
	{DIGIT_L(1,0,0,0,0,1,1,0), DIGIT_H(1,0,0,0,0,1,0,1)}, 	// }
	{DIGIT_L(1,0,0,0,0,0,0,0), DIGIT_H(0,0,0,0,0,0,1,0)}	// ~
};

static const char fipxcharacters[NUM_X_CHARACTERS] = {
	DIGIT_X(1,1,1,0,1,1,1,1),	// 0
	DIGIT_X(0,1,0,0,1,0,0,1),	// 1
	DIGIT_X(1,1,0,1,0,1,1,1),	// 2
	DIGIT_X(1,1,0,1,1,0,1,1),	// 3
	DIGIT_X(0,1,1,1,1,0,0,1),	// 4
	DIGIT_X(1,0,1,1,1,0,1,1),	// 5
	DIGIT_X(1,0,1,1,1,1,1,1),	// 6
	DIGIT_X(1,1,0,0,1,0,0,1),	// 7
	DIGIT_X(1,1,1,1,1,1,1,1),	// 8
	DIGIT_X(1,1,1,1,1,0,1,1),	// 9
	DIGIT_X(0,0,0,1,0,0,0,0),	// -
	DIGIT_X(0,0,0,0,0,0,0,0)	// 
};
#endif

#if defined(CONFIG_EM86XX_FIP_REF1)
/* this array is used to display individual symbols
   the format is [byte position][bit to turn on] - both zero based */
static const char fipsymbols[NUM_SYMBOLS][2] = {
	{0, 0}, 	/* DVD */
	{0, 1}, 	/* PLAY */
	{0, 2}, 	/* DTS */
	{0, 3}, 	/* MP3 */
	{0, 4}, 	/* DOLBY DIGITAL */
	{0, 5}, 	/* MPEG4 */
	{0, 6},		/* PAUSE */
	{0, 7}, 	/* DVI */
	{1, 0}, 	/* TWIRL1 */
	{1, 1}, 	/* TWIRL2 */
	{1, 2}, 	/* TWIRL3 */
	{1, 3}, 	/* TWIRL4 */
	{1, 4}, 	/* TWIRL5 */
	{1, 5}, 	/* TWIRL6 */
	{1, 6}, 	/* ALL */
	{1, 7}, 	/* REPEAT */
	{9, 6},		/* COLON_MIN_SEC */
	{9, 7}, 	/* R1080 */
	{12, 7}, 	/* R720 */
	{15, 6}, 	/* COLON_HOUR_MIN */
	{15, 7}, 	/* R480 */
	{18, 7}, 	/* PAL */
	{21, 7},	/* NTSC */
};
#elif defined(CONFIG_EM86XX_FIP_REF2)
/* this array is used to display individual symbols
   the format is [byte position][bit to turn on] - both zero based */
static const char fipsymbols[NUM_SYMBOLS][2] = {
	{0, 1},		// DVD
	{0, 2},		// VCD
	{0, 4},		// MP3
	{0, 8}, 	// CD
	{29, 1}, 	// Title
	{27, 1}		// Track
};
#endif

/* The buffer size defines the size of circular buffer to keep the FIP keys */
#define BUF_SIZE		2

/* Wait period, to avoid bouncing or repeatation? */
#define WAIT_PERIOD		100

/* Default brightness level */
#define BRIGHTNESS		0x7

/* The number of key polling per second */
#define POLL_PER_SECOND		10

#ifdef __KERNEL__
/* The major device number and name */
#ifdef CONFIG_DEVFS_FS
#define FIP_DEV_MAJOR		0
#else
#define FIP_DEV_MAJOR		128	/* May need to be changed?? */
#endif 

MODULE_DESCRIPTION("EM86xx front panel fip driver\n");
MODULE_AUTHOR("Mambo standalone team");
MODULE_LICENSE("Proprietary, Copyright (c) 2004 Sigma Designs Inc. "
		"All rights reserved.");

/* Wait queue, may be used if block mode is on */
DECLARE_WAIT_QUEUE_HEAD(fip_wq);

MODULE_PARM(buffer_size, "i");
MODULE_PARM(wait_period, "i");
MODULE_PARM(brightness, "i");
MODULE_PARM(poll_per_sec, "i");

/* Some prototypes */
static int fip_open(struct inode *, struct file *);
static int fip_release(struct inode *, struct file *);
static int fip_read(struct file *, char *, size_t, loff_t *);
static int fip_write(struct file *, const char *, size_t, loff_t *);
static int fip_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
static unsigned int fip_poll(struct file *, struct poll_table_struct *);
static int buffer_size = BUF_SIZE;
static int wait_period = WAIT_PERIOD;
static unsigned int poll_per_sec = POLL_PER_SECOND;
static int fip_irq = IRQ_FRONTPANEL;
static void fip_isr(int irq, void *dev_id, struct pt_regs *regs);
static void fip_poll_key(unsigned long devid);

static struct timer_list fip_timer;
#if 0
static struct tq_struct immediate;
#endif

static void fip_write_text(const int position, const char *text, const int flags);
static int fip_show_hms(int hour, int minute, int second);
static void fip_display_symbol(const int symbol, const int on);
static int fip_display_character(const int position, const char character);
static void fip_display_raw(const int byte, const int bit, const int on); 
static int is_fip_busy(void);
static int is_fip_busy_nowait(void);
static void fip_clear(void);

#else /* For Bootloader */

void fip_write_text(const int position, const char *text, const int flags);
void fip_display_symbol(const int symbol, const int on);
int fip_display_character(const int position, const char character);
void fip_display_raw(const int byte, const int bit, const int on); 
int is_fip_busy(void);
void fip_clear(void);