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/* $Id: openprom.h,v 1.24 2000/06/04 06:23:53 anton Exp $ */
#ifndef __SPARC_OPENPROM_H
#define __SPARC_OPENPROM_H

/* openprom.h:  Prom structures and defines for access to the OPENBOOT
 *              prom routines and data areas.
 *
 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
 */

#include <asm/vaddrs.h>

/* Empirical constants... */
#define	LINUX_OPPROM_MAGIC      0x10010407

#ifndef __ASSEMBLY__
/* V0 prom device operations. */
struct linux_dev_v0_funcs {
	int (*v0_devopen)(char *device_str);
	int (*v0_devclose)(int dev_desc);
	int (*v0_rdblkdev)(int dev_desc, int num_blks, int blk_st, char *buf);
	int (*v0_wrblkdev)(int dev_desc, int num_blks, int blk_st, char *buf);
	int (*v0_wrnetdev)(int dev_desc, int num_bytes, char *buf);
	int (*v0_rdnetdev)(int dev_desc, int num_bytes, char *buf);
	int (*v0_rdchardev)(int dev_desc, int num_bytes, int dummy, char *buf);
	int (*v0_wrchardev)(int dev_desc, int num_bytes, int dummy, char *buf);
	int (*v0_seekdev)(int dev_desc, long logical_offst, int from);
};

/* V2 and later prom device operations. */
struct linux_dev_v2_funcs {
	int (*v2_inst2pkg)(int d);	/* Convert ihandle to phandle */
	char * (*v2_dumb_mem_alloc)(char *va, unsigned sz);
	void (*v2_dumb_mem_free)(char *va, unsigned sz);

	/* To map devices into virtual I/O space. */
	char * (*v2_dumb_mmap)(char *virta, int which_io, unsigned paddr, unsigned sz);
	void (*v2_dumb_munmap)(char *virta, unsigned size);

	int (*v2_dev_open)(char *devpath);
	void (*v2_dev_close)(int d);
	int (*v2_dev_read)(int d, char *buf, int nbytes);
	int (*v2_dev_write)(int d, char *buf, int nbytes);
	int (*v2_dev_seek)(int d, int hi, int lo);

	/* Never issued (multistage load support) */
	void (*v2_wheee2)(void);
	void (*v2_wheee3)(void);
};

struct linux_mlist_v0 {
	struct linux_mlist_v0 *theres_more;
	char *start_adr;
	unsigned num_bytes;
};

struct linux_mem_v0 {
	struct linux_mlist_v0 **v0_totphys;
	struct linux_mlist_v0 **v0_prommap;
	struct linux_mlist_v0 **v0_available; /* What we can use */
};

/* Arguments sent to the kernel from the boot prompt. */
struct linux_arguments_v0 {
	char *argv[8];
	char args[100];
	char boot_dev[2];
	int boot_dev_ctrl;
	int boot_dev_unit;
	int dev_partition;
	char *kernel_file_name;
	void *aieee1;           /* XXX */
};

/* V2 and up boot things. */
struct linux_bootargs_v2 {
	char **bootpath;
	char **bootargs;
	int *fd_stdin;
	int *fd_stdout;
};

/* The top level PROM vector. */
struct linux_romvec {
	/* Version numbers. */
	unsigned int pv_magic_cookie;
	unsigned int pv_romvers;
	unsigned int pv_plugin_revision;
	unsigned int pv_printrev;

	/* Version 0 memory descriptors. */
	struct linux_mem_v0 pv_v0mem;

	/* Node operations. */
	struct linux_nodeops *pv_nodeops;

	char **pv_bootstr;
	struct linux_dev_v0_funcs pv_v0devops;

	char *pv_stdin;
	char *pv_stdout;
#define	PROMDEV_KBD	0		/* input from keyboard */
#define	PROMDEV_SCREEN	0		/* output to screen */
#define	PROMDEV_TTYA	1		/* in/out to ttya */
#define	PROMDEV_TTYB	2		/* in/out to ttyb */

	/* Blocking getchar/putchar.  NOT REENTRANT! (grr) */
	int (*pv_getchar)(void);
	void (*pv_putchar)(int ch);

	/* Non-blocking variants. */
	int (*pv_nbgetchar)(void);
	int (*pv_nbputchar)(int ch);

	void (*pv_putstr)(char *str, int len);

	/* Miscellany. */
	void (*pv_reboot)(char *bootstr);
	void (*pv_printf)(__const__ char *fmt, ...);
	void (*pv_abort)(void);
	__volatile__ int *pv_ticks;
	void (*pv_halt)(void);
	void (**pv_synchook)(void);

	/* Evaluate a forth string, not different proto for V0 and V2->up. */
	union {
		void (*v0_eval)(int len, char *str);
		void (*v2_eval)(char *str);
	} pv_fortheval;

	struct linux_arguments_v0 **pv_v0bootargs;

	/* Get ether address. */
	unsigned int (*pv_enaddr)(int d, char *enaddr);

	struct linux_bootargs_v2 pv_v2bootargs;
	struct linux_dev_v2_funcs pv_v2devops;

	int filler[15];

	/* This one is sun4c/sun4 only. */
	void (*pv_setctxt)(int ctxt, char *va, int pmeg);

	/* Prom version 3 Multiprocessor routines. This stuff is crazy.
	 * No joke. Calling these when there is only one cpu probably
	 * crashes the machine, have to test this. :-)
	 */

	/* v3_cpustart() will start the cpu 'whichcpu' in mmu-context
	 * 'thiscontext' executing at address 'prog_counter'
	 */
	int (*v3_cpustart)(unsigned int whichcpu, int ctxtbl_ptr,
			   int thiscontext, char *prog_counter);

	/* v3_cpustop() will cause cpu 'whichcpu' to stop executing
	 * until a resume cpu call is made.
	 */
	int (*v3_cpustop)(unsigned int whichcpu);

	/* v3_cpuidle() will idle cpu 'whichcpu' until a stop or
	 * resume cpu call is made.
	 */
	int (*v3_cpuidle)(unsigned int whichcpu);

	/* v3_cpuresume() will resume processor 'whichcpu' executing
	 * starting with whatever 'pc' and 'npc' were left at the
	 * last 'idle' or 'stop' call.
	 */
	int (*v3_cpuresume)(unsigned int whichcpu);
};

/* Routines for traversing the prom device tree. */
struct linux_nodeops {
	int (*no_nextnode)(int node);
	int (*no_child)(int node);
	int (*no_proplen)(int node, char *name);
	int (*no_getprop)(int node, char *name, char *val);
	int (*no_setprop)(int node, char *name, char *val, int len);
	char * (*no_nextprop)(int node, char *name);
};

/* More fun PROM structures for device probing. */
#define PROMREG_MAX     16
#define PROMVADDR_MAX   16
#define PROMINTR_MAX    15

struct linux_prom_registers {
	unsigned int which_io;         /* is this in OBIO space? */
	unsigned int phys_addr;        /* The physical address of this register */
	unsigned int reg_size;         /* How many bytes does this register take up? */
};

struct linux_prom_irqs {
	int pri;    /* IRQ priority */
	int vector; /* This is foobar, what does it do? */
};

/* Element of the "ranges" vector */
struct linux_prom_ranges {
	unsigned int ot_child_space;
	unsigned int ot_child_base;		/* Bus feels this */
	unsigned int ot_parent_space;
	unsigned int ot_parent_base;		/* CPU looks from here */
	unsigned int or_size;
};

/* Ranges and reg properties are a bit different for PCI. */
struct linux_prom_pci_registers {
	/* 
	 * We don't know what information this field contain.
	 * We guess, PCI device function is in bits 15:8
	 * So, ...
	 */
	unsigned int which_io;  /* Let it be which_io */

	unsigned int phys_hi;
	unsigned int phys_lo;

	unsigned int size_hi;
	unsigned int size_lo;
};

struct linux_prom_pci_ranges {
	unsigned int child_phys_hi;	/* Only certain bits are encoded here. */
	unsigned int child_phys_mid;
	unsigned int child_phys_lo;

	unsigned int parent_phys_hi;
	unsigned int parent_phys_lo;

	unsigned int size_hi;
	unsigned int size_lo;
};

struct linux_prom_pci_assigned_addresses {
	unsigned int which_io;

	unsigned int phys_hi;
	unsigned int phys_lo;

	unsigned int size_hi;
	unsigned int size_lo;
};

struct linux_prom_ebus_ranges {
	unsigned int child_phys_hi;
	unsigned int child_phys_lo;

	unsigned int parent_phys_hi;
	unsigned int parent_phys_mid;
	unsigned int parent_phys_lo;

	unsigned int size;
};

#endif /* !(__ASSEMBLY__) */

#endif /* !(__SPARC_OPENPROM_H) */
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// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2005-2006 Micronas USA Inc.
 */

/*
 * This file contains code to generate a firmware image for the GO7007SB
 * encoder.  Much of the firmware is read verbatim from a file, but some of
 * it concerning bitrate control and other things that can be configured at
 * run-time are generated dynamically.  Note that the format headers
 * generated here do not affect the functioning of the encoder; they are
 * merely parroted back to the host at the start of each frame.
 */

#include <linux/module.h>
#include <linux/time.h>
#include <linux/mm.h>
#include <linux/device.h>
#include <linux/i2c.h>
#include <linux/firmware.h>
#include <linux/slab.h>
#include <asm/byteorder.h>

#include "go7007-priv.h"

#define GO7007_FW_NAME "go7007/go7007tv.bin"

/* Constants used in the source firmware image to describe code segments */

#define	FLAG_MODE_MJPEG		(1)
#define	FLAG_MODE_MPEG1		(1<<1)
#define	FLAG_MODE_MPEG2		(1<<2)
#define	FLAG_MODE_MPEG4		(1<<3)
#define	FLAG_MODE_H263		(1<<4)
#define FLAG_MODE_ALL		(FLAG_MODE_MJPEG | FLAG_MODE_MPEG1 | \
					FLAG_MODE_MPEG2 | FLAG_MODE_MPEG4 | \
					FLAG_MODE_H263)
#define FLAG_SPECIAL		(1<<8)

#define SPECIAL_FRM_HEAD	0
#define SPECIAL_BRC_CTRL	1
#define SPECIAL_CONFIG		2
#define SPECIAL_SEQHEAD		3
#define SPECIAL_AV_SYNC		4
#define SPECIAL_FINAL		5
#define SPECIAL_AUDIO		6
#define SPECIAL_MODET		7

/* Little data class for creating MPEG headers bit-by-bit */

struct code_gen {
	unsigned char *p; /* destination */
	u32 a; /* collects bits at the top of the variable */
	int b; /* bit position of most recently-written bit */
	int len; /* written out so far */
};

#define CODE_GEN(name, dest) struct code_gen name = { dest, 0, 32, 0 }

#define CODE_ADD(name, val, length) do { \
	name.b -= (length); \
	name.a |= (val) << name.b; \
	while (name.b <= 24) { \
		*name.p = name.a >> 24; \
		++name.p; \
		name.a <<= 8; \
		name.b += 8; \
		name.len += 8; \
	} \
} while (0)

#define CODE_LENGTH(name) (name.len + (32 - name.b))

/* Tables for creating the bitrate control data */

static const s16 converge_speed_ip[101] = {
	1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
	1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
	1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
	1, 1, 1, 1, 1, 1, 1, 1, 1, 2,
	2, 2, 2, 2, 2, 2, 2, 2, 2, 3,
	3, 3, 3, 3, 3, 4, 4, 4, 4, 4,
	5, 5, 5, 6, 6, 6, 7, 7, 8, 8,
	9, 10, 10, 11, 12, 13, 14, 15, 16, 17,
	19, 20, 22, 23, 25, 27, 30, 32, 35, 38,
	41, 45, 49, 53, 58, 63, 69, 76, 83, 91,
	100
};

static const s16 converge_speed_ipb[101] = {
	3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
	3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
	3, 3, 3, 3, 3, 4, 4, 4, 4, 4,
	4, 4, 4, 4, 5, 5, 5, 5, 5, 6,
	6, 6, 6, 7, 7, 7, 7, 8, 8, 9,
	9, 9, 10, 10, 11, 12, 12, 13, 14, 14,
	15, 16, 17, 18, 19, 20, 22, 23, 25, 26,
	28, 30, 32, 34, 37, 40, 42, 46, 49, 53,
	57, 61, 66, 71, 77, 83, 90, 97, 106, 115,
	125, 135, 147, 161, 175, 191, 209, 228, 249, 273,
	300
};

static const s16 LAMBDA_table[4][101] = {
	{	16, 16, 16, 16, 17, 17, 17, 18, 18, 18,
		19, 19, 19, 20, 20, 20, 21, 21, 22, 22,
		22, 23, 23, 24, 24, 25, 25, 25, 26, 26,
		27, 27, 28, 28, 29, 29, 30, 31, 31, 32,
		32, 33, 33, 34, 35, 35, 36, 37, 37, 38,
		39, 39, 40, 41, 42, 42, 43, 44, 45, 46,
		46, 47, 48, 49, 50, 51, 52, 53, 54, 55,
		56, 57, 58, 59, 60, 61, 62, 63, 64, 65,
		67, 68, 69, 70, 72, 73, 74, 76, 77, 78,
		80, 81, 83, 84, 86, 87, 89, 90, 92, 94,
		96
	},
	{
		20, 20, 20, 21, 21, 21, 22, 22, 23, 23,
		23, 24, 24, 25, 25, 26, 26, 27, 27, 28,
		28, 29, 29, 30, 30, 31, 31, 32, 33, 33,
		34, 34, 35, 36, 36, 37, 38, 38, 39, 40,
		40, 41, 42, 43, 43, 44, 45, 46, 47, 48,
		48, 49, 50, 51, 52, 53, 54, 55, 56, 57,
		58, 59, 60, 61, 62, 64, 65, 66, 67, 68,
		70, 71, 72, 73, 75, 76, 78, 79, 80, 82,
		83, 85, 86, 88, 90, 91, 93, 95, 96, 98,
		100, 102, 103, 105, 107, 109, 111, 113, 115, 117,
		120
	},
	{
		24, 24, 24, 25, 25, 26, 26, 27, 27, 28,
		28, 29, 29, 30, 30, 31, 31, 32, 33, 33,
		34, 34, 35, 36, 36, 37, 38, 38, 39, 40,
		41, 41, 42, 43, 44, 44, 45, 46, 47, 48,
		49, 50, 50, 51, 52, 53, 54, 55, 56, 57,
		58, 59, 60, 62, 63, 64, 65, 66, 67, 69,
		70, 71, 72, 74, 75, 76, 78, 79, 81, 82,
		84, 85, 87, 88, 90, 92, 93, 95, 97, 98,
		100, 102, 104, 106, 108, 110, 112, 114, 116, 118,
		120, 122, 124, 127, 129, 131, 134, 136, 138, 141,
		144
	},
	{
		32, 32, 33, 33, 34, 34, 35, 36, 36, 37,
		38, 38, 39, 40, 41, 41, 42, 43, 44, 44,
		45, 46, 47, 48, 49, 50, 50, 51, 52, 53,
		54, 55, 56, 57, 58, 59, 60, 62, 63, 64,
		65, 66, 67, 69, 70, 71, 72, 74, 75, 76,
		78, 79, 81, 82, 84, 85, 87, 88, 90, 92,
		93, 95, 97, 98, 100, 102, 104, 106, 108, 110,
		112, 114, 116, 118, 120, 122, 124, 127, 129, 131,
		134, 136, 139, 141, 144, 146, 149, 152, 154, 157,
		160, 163, 166, 169, 172, 175, 178, 181, 185, 188,
		192
	}
};

/* MPEG blank frame generation tables */

enum mpeg_frame_type {
	PFRAME,
	BFRAME_PRE,
	BFRAME_POST,
	BFRAME_BIDIR,
	BFRAME_EMPTY
};

static const u32 addrinctab[33][2] = {
	{ 0x01, 1 },	{ 0x03, 3 },	{ 0x02, 3 },	{ 0x03, 4 },
	{ 0x02, 4 },	{ 0x03, 5 },	{ 0x02, 5 },	{ 0x07, 7 },
	{ 0x06, 7 },	{ 0x0b, 8 },	{ 0x0a, 8 },	{ 0x09, 8 },
	{ 0x08, 8 },	{ 0x07, 8 },	{ 0x06, 8 },	{ 0x17, 10 },
	{ 0x16, 10 },	{ 0x15, 10 },	{ 0x14, 10 },	{ 0x13, 10 },
	{ 0x12, 10 },	{ 0x23, 11 },	{ 0x22, 11 },	{ 0x21, 11 },
	{ 0x20, 11 },	{ 0x1f, 11 },	{ 0x1e, 11 },	{ 0x1d, 11 },
	{ 0x1c, 11 },	{ 0x1b, 11 },	{ 0x1a, 11 },	{ 0x19, 11 },
	{ 0x18, 11 }
};

/* Standard JPEG tables */

static const u8 default_intra_quant_table[] = {
	 8, 16, 19, 22, 26, 27, 29, 34,
	16, 16, 22, 24, 27, 29, 34, 37,
	19, 22, 26, 27, 29, 34, 34, 38,
	22, 22, 26, 27, 29, 34, 37, 40,
	22, 26, 27, 29, 32, 35, 40, 48,
	26, 27, 29, 32, 35, 40, 48, 58,
	26, 27, 29, 34, 38, 46, 56, 69,
	27, 29, 35, 38, 46, 56, 69, 83
};

static const u8 bits_dc_luminance[] = {
	0, 0, 1, 5, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0
};

static const u8 val_dc_luminance[] = {
	0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11
};

static const u8 bits_dc_chrominance[] = {
	0, 0, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0
};

static const u8 val_dc_chrominance[] = {
	0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11
};

static const u8 bits_ac_luminance[] = {
	0, 0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, 0x7d
};

static const u8 val_ac_luminance[] = {
	0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12,
	0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07,
	0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xa1, 0x08,
	0x23, 0x42, 0xb1, 0xc1, 0x15, 0x52, 0xd1, 0xf0,
	0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0a, 0x16,
	0x17, 0x18, 0x19, 0x1a, 0x25, 0x26, 0x27, 0x28,
	0x29, 0x2a, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39,
	0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49,
	0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59,
	0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69,
	0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79,
	0x7a, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89,
	0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98,
	0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
	0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6,
	0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5,
	0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4,
	0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xe1, 0xe2,
	0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea,
	0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8,
	0xf9, 0xfa
};

static const u8 bits_ac_chrominance[] = {
	0, 0, 2, 1, 2, 4, 4, 3, 4, 7, 5, 4, 4, 0, 1, 2, 0x77
};

static const u8 val_ac_chrominance[] = {
	0x00, 0x01, 0x02, 0x03, 0x11, 0x04, 0x05, 0x21,
	0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71,
	0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91,
	0xa1, 0xb1, 0xc1, 0x09, 0x23, 0x33, 0x52, 0xf0,
	0x15, 0x62, 0x72, 0xd1, 0x0a, 0x16, 0x24, 0x34,
	0xe1, 0x25, 0xf1, 0x17, 0x18, 0x19, 0x1a, 0x26,
	0x27, 0x28, 0x29, 0x2a, 0x35, 0x36, 0x37, 0x38,
	0x39, 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48,
	0x49, 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
	0x59, 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68,
	0x69, 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
	0x79, 0x7a, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
	0x88, 0x89, 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96,
	0x97, 0x98, 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5,
	0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4,
	0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3,
	0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2,
	0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda,
	0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9,
	0xea, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8,
	0xf9, 0xfa
};

/* Zig-zag mapping for quant table
 *
 * OK, let's do this mapping on the actual table above so it doesn't have
 * to be done on the fly.
 */
static const int zz[64] = {
	0,   1,  8, 16,  9,  2,  3, 10, 17, 24, 32, 25, 18, 11,  4,  5,
	12, 19, 26, 33, 40, 48, 41, 34, 27, 20, 13,  6,  7, 14, 21, 28,
	35, 42, 49, 56, 57, 50, 43, 36, 29, 22, 15, 23, 30, 37, 44, 51,
	58, 59, 52, 45, 38, 31, 39, 46, 53, 60, 61, 54, 47, 55, 62, 63
};

static int copy_packages(__le16 *dest, u16 *src, int pkg_cnt, int space)
{
	int i, cnt = pkg_cnt * 32;

	if (space < cnt)
		return -1;

	for (i = 0; i < cnt; ++i)
		dest[i] = cpu_to_le16p(src + i);

	return cnt;
}

static int mjpeg_frame_header(struct go7007 *go, unsigned char *buf, int q)
{
	int i, p = 0;

	buf[p++] = 0xff;
	buf[p++] = 0xd8;
	buf[p++] = 0xff;
	buf[p++] = 0xdb;
	buf[p++] = 0;
	buf[p++] = 2 + 65;
	buf[p++] = 0;
	buf[p++] = default_intra_quant_table[0];
	for (i = 1; i < 64; ++i)
		/* buf[p++] = (default_intra_quant_table[i] * q) >> 3; */
		buf[p++] = (default_intra_quant_table[zz[i]] * q) >> 3;
	buf[p++] = 0xff;
	buf[p++] = 0xc0;
	buf[p++] = 0;
	buf[p++] = 17;
	buf[p++] = 8;
	buf[p++] = go->height >> 8;
	buf[p++] = go->height & 0xff;
	buf[p++] = go->width >> 8;
	buf[p++] = go->width & 0xff;
	buf[p++] = 3;
	buf[p++] = 1;
	buf[p++] = 0x22;
	buf[p++] = 0;
	buf[p++] = 2;
	buf[p++] = 0x11;
	buf[p++] = 0;
	buf[p++] = 3;
	buf[p++] = 0x11;
	buf[p++] = 0;
	buf[p++] = 0xff;
	buf[p++] = 0xc4;
	buf[p++] = 418 >> 8;
	buf[p++] = 418 & 0xff;
	buf[p++] = 0x00;
	memcpy(buf + p, bits_dc_luminance + 1, 16);
	p += 16;
	memcpy(buf + p, val_dc_luminance, sizeof(val_dc_luminance));
	p += sizeof(val_dc_luminance);
	buf[p++] = 0x01;
	memcpy(buf + p, bits_dc_chrominance + 1, 16);
	p += 16;
	memcpy(buf + p, val_dc_chrominance, sizeof(val_dc_chrominance));
	p += sizeof(val_dc_chrominance);
	buf[p++] = 0x10;
	memcpy(buf + p, bits_ac_luminance + 1, 16);
	p += 16;
	memcpy(buf + p, val_ac_luminance, sizeof(val_ac_luminance));
	p += sizeof(val_ac_luminance);
	buf[p++] = 0x11;
	memcpy(buf + p, bits_ac_chrominance + 1, 16);
	p += 16;
	memcpy(buf + p, val_ac_chrominance, sizeof(val_ac_chrominance));
	p += sizeof(val_ac_chrominance);
	buf[p++] = 0xff;
	buf[p++] = 0xda;
	buf[p++] = 0;
	buf[p++] = 12;
	buf[p++] = 3;
	buf[p++] = 1;
	buf[p++] = 0x00;
	buf[p++] = 2;
	buf[p++] = 0x11;
	buf[p++] = 3;
	buf[p++] = 0x11;
	buf[p++] = 0;
	buf[p++] = 63;
	buf[p++] = 0;
	return p;
}

static int gen_mjpeghdr_to_package(struct go7007 *go, __le16 *code, int space)
{
	u8 *buf;
	u16 mem = 0x3e00;
	unsigned int addr = 0x19;
	int size = 0, i, off = 0, chunk;

	buf = kzalloc(4096, GFP_KERNEL);
	if (buf == NULL)
		return -ENOMEM;

	for (i = 1; i < 32; ++i) {
		mjpeg_frame_header(go, buf + size, i);
		size += 80;
	}
	chunk = mjpeg_frame_header(go, buf + size, 1);
	memmove(buf + size, buf + size + 80, chunk - 80);
	size += chunk - 80;

	for (i = 0; i < size; i += chunk * 2) {
		if (space - off < 32) {
			off = -1;
			goto done;
		}

		code[off + 1] = __cpu_to_le16(0x8000 | mem);

		chunk = 28;
		if (mem + chunk > 0x4000)
			chunk = 0x4000 - mem;
		if (i + 2 * chunk > size)
			chunk = (size - i) / 2;

		if (chunk < 28) {
			code[off] = __cpu_to_le16(0x4000 | chunk);
			code[off + 31] = __cpu_to_le16(addr++);
			mem = 0x3e00;
		} else {
			code[off] = __cpu_to_le16(0x1000 | 28);
			code[off + 31] = 0;
			mem += 28;
		}

		memcpy(&code[off + 2], buf + i, chunk * 2);
		off += 32;
	}
done:
	kfree(buf);
	return off;
}

static int mpeg1_frame_header(struct go7007 *go, unsigned char *buf,
		int modulo, int pict_struct, enum mpeg_frame_type frame)
{
	int i, j, mb_code, mb_len;
	int rows = go->interlace_coding ? go->height / 32 : go->height / 16;
	CODE_GEN(c, buf + 6);

	switch (frame) {
	case PFRAME:
		mb_code = 0x1;
		mb_len = 3;
		break;
	case BFRAME_PRE:
		mb_code = 0x2;
		mb_len = 4;
		break;
	case BFRAME_POST:
		mb_code = 0x2;
		mb_len = 3;
		break;
	case BFRAME_BIDIR:
		mb_code = 0x2;
		mb_len = 2;
		break;
	default: /* keep the compiler happy */
		mb_code = mb_len = 0;
		break;
	}

	CODE_ADD(c, frame == PFRAME ? 0x2 : 0x3, 13);
	CODE_ADD(c, 0xffff, 16);
	CODE_ADD(c, go->format == V4L2_PIX_FMT_MPEG2 ? 0x7 : 0x4, 4);
	if (frame != PFRAME)
		CODE_ADD(c, go->format == V4L2_PIX_FMT_MPEG2 ? 0x7 : 0x4, 4);
	else
		CODE_ADD(c, 0, 4); /* Is this supposed to be here?? */
	CODE_ADD(c, 0, 3); /* What is this?? */
	/* Byte-align with zeros */
	j = 8 - (CODE_LENGTH(c) % 8);
	if (j != 8)
		CODE_ADD(c, 0, j);

	if (go->format == V4L2_PIX_FMT_MPEG2) {
		CODE_ADD(c, 0x1, 24);
		CODE_ADD(c, 0xb5, 8);
		CODE_ADD(c, 0x844, 12);
		CODE_ADD(c, frame == PFRAME ? 0xff : 0x44, 8);
		if (go->interlace_coding) {
			CODE_ADD(c, pict_struct, 4);
			if (go->dvd_mode)
				CODE_ADD(c, 0x000, 11);
			else
				CODE_ADD(c, 0x200, 11);
		} else {
			CODE_ADD(c, 0x3, 4);
			CODE_ADD(c, 0x20c, 11);
		}
		/* Byte-align with zeros */
		j = 8 - (CODE_LENGTH(c) % 8);
		if (j != 8)
			CODE_ADD(c, 0, j);
	}

	for (i = 0; i < rows; ++i) {
		CODE_ADD(c, 1, 24);
		CODE_ADD(c, i + 1, 8);
		CODE_ADD(c, 0x2, 6);
		CODE_ADD(c, 0x1, 1);
		CODE_ADD(c, mb_code, mb_len);
		if (go->interlace_coding) {
			CODE_ADD(c, 0x1, 2);
			CODE_ADD(c, pict_struct == 1 ? 0x0 : 0x1, 1);
		}
		if (frame == BFRAME_BIDIR) {
			CODE_ADD(c, 0x3, 2);
			if (go->interlace_coding)
				CODE_ADD(c, pict_struct == 1 ? 0x0 : 0x1, 1);
		}
		CODE_ADD(c, 0x3, 2);
		for (j = (go->width >> 4) - 2; j >= 33; j -= 33)
			CODE_ADD(c, 0x8, 11);
		CODE_ADD(c, addrinctab[j][0], addrinctab[j][1]);
		CODE_ADD(c, mb_code, mb_len);
		if (go->interlace_coding) {
			CODE_ADD(c, 0x1, 2);
			CODE_ADD(c, pict_struct == 1 ? 0x0 : 0x1, 1);
		}
		if (frame == BFRAME_BIDIR) {
			CODE_ADD(c, 0x3, 2);
			if (go->interlace_coding)
				CODE_ADD(c, pict_struct == 1 ? 0x0 : 0x1, 1);
		}
		CODE_ADD(c, 0x3, 2);

		/* Byte-align with zeros */
		j = 8 - (CODE_LENGTH(c) % 8);
		if (j != 8)
			CODE_ADD(c, 0, j);
	}

	i = CODE_LENGTH(c) + 4 * 8;
	buf[2] = 0x00;
	buf[3] = 0x00;
	buf[4] = 0x01;
	buf[5] = 0x00;
	return i;
}

static int mpeg1_sequence_header(struct go7007 *go, unsigned char *buf, int ext)
{
	int i, aspect_ratio, picture_rate;
	CODE_GEN(c, buf + 6);

	if (go->format == V4L2_PIX_FMT_MPEG1) {
		switch (go->aspect_ratio) {
		case GO7007_RATIO_4_3:
			aspect_ratio = go->standard == GO7007_STD_NTSC ? 3 : 2;
			break;
		case GO7007_RATIO_16_9:
			aspect_ratio = go->standard == GO7007_STD_NTSC ? 5 : 4;
			break;
		default:
			aspect_ratio = 1;
			break;
		}
	} else {
		switch (go->aspect_ratio) {
		case GO7007_RATIO_4_3:
			aspect_ratio = 2;
			break;
		case GO7007_RATIO_16_9:
			aspect_ratio = 3;
			break;
		default:
			aspect_ratio = 1;
			break;
		}
	}
	switch (go->sensor_framerate) {
	case 24000:
		picture_rate = 1;
		break;
	case 24024:
		picture_rate = 2;
		break;
	case 25025:
		picture_rate = go->interlace_coding ? 6 : 3;
		break;
	case 30000:
		picture_rate = go->interlace_coding ? 7 : 4;
		break;
	case 30030:
		picture_rate = go->interlace_coding ? 8 : 5;
		break;
	default:
		picture_rate = 5; /* 30 fps seems like a reasonable default */
		break;
	}

	CODE_ADD(c, go->width, 12);
	CODE_ADD(c, go->height, 12);
	CODE_ADD(c, aspect_ratio, 4);
	CODE_ADD(c, picture_rate, 4);
	CODE_ADD(c, go->format == V4L2_PIX_FMT_MPEG2 ? 20000 : 0x3ffff, 18);
	CODE_ADD(c, 1, 1);
	CODE_ADD(c, go->format == V4L2_PIX_FMT_MPEG2 ? 112 : 20, 10);
	CODE_ADD(c, 0, 3);

	/* Byte-align with zeros */
	i = 8 - (CODE_LENGTH(c) % 8);
	if (i != 8)
		CODE_ADD(c, 0, i);

	if (go->format == V4L2_PIX_FMT_MPEG2) {
		CODE_ADD(c, 0x1, 24);
		CODE_ADD(c, 0xb5, 8);
		CODE_ADD(c, 0x148, 12);
		if (go->interlace_coding)
			CODE_ADD(c, 0x20001, 20);
		else
			CODE_ADD(c, 0xa0001, 20);
		CODE_ADD(c, 0, 16);

		/* Byte-align with zeros */
		i = 8 - (CODE_LENGTH(c) % 8);
		if (i != 8)
			CODE_ADD(c, 0, i);

		if (ext) {
			CODE_ADD(c, 0x1, 24);
			CODE_ADD(c, 0xb52, 12);
			CODE_ADD(c, go->standard == GO7007_STD_NTSC ? 2 : 1, 3);
			CODE_ADD(c, 0x105, 9);
			CODE_ADD(c, 0x505, 16);
			CODE_ADD(c, go->width, 14);
			CODE_ADD(c, 1, 1);
			CODE_ADD(c, go->height, 14);

			/* Byte-align with zeros */
			i = 8 - (CODE_LENGTH(c) % 8);
			if (i != 8)
				CODE_ADD(c, 0, i);
		}
	}

	i = CODE_LENGTH(c) + 4 * 8;
	buf[0] = i & 0xff;
	buf[1] = i >> 8;
	buf[2] = 0x00;
	buf[3] = 0x00;
	buf[4] = 0x01;
	buf[5] = 0xb3;
	return i;
}

static int gen_mpeg1hdr_to_package(struct go7007 *go,
					__le16 *code, int space, int *framelen)
{
	u8 *buf;
	u16 mem = 0x3e00;
	unsigned int addr = 0x19;
	int i, off = 0, chunk;

	buf = kzalloc(5120, GFP_KERNEL);
	if (buf == NULL)
		return -ENOMEM;

	framelen[0] = mpeg1_frame_header(go, buf, 0, 1, PFRAME);
	if (go->interlace_coding)
		framelen[0] += mpeg1_frame_header(go, buf + framelen[0] / 8,
							0, 2, PFRAME);
	buf[0] = framelen[0] & 0xff;
	buf[1] = framelen[0] >> 8;
	i = 368;
	framelen[1] = mpeg1_frame_header(go, buf + i, 0, 1, BFRAME_PRE);
	if (go->interlace_coding)
		framelen[1] += mpeg1_frame_header(go, buf + i + framelen[1] / 8,
							0, 2, BFRAME_PRE);
	buf[i] = framelen[1] & 0xff;
	buf[i + 1] = framelen[1] >> 8;
	i += 1632;
	framelen[2] = mpeg1_frame_header(go, buf + i, 0, 1, BFRAME_POST);
	if (go->interlace_coding)
		framelen[2] += mpeg1_frame_header(go, buf + i + framelen[2] / 8,
							0, 2, BFRAME_POST);
	buf[i] = framelen[2] & 0xff;
	buf[i + 1] = framelen[2] >> 8;
	i += 1432;
	framelen[3] = mpeg1_frame_header(go, buf + i, 0, 1, BFRAME_BIDIR);
	if (go->interlace_coding)
		framelen[3] += mpeg1_frame_header(go, buf + i + framelen[3] / 8,
							0, 2, BFRAME_BIDIR);
	buf[i] = framelen[3] & 0xff;
	buf[i + 1] = framelen[3] >> 8;
	i += 1632 + 16;
	mpeg1_sequence_header(go, buf + i, 0);
	i += 40;
	for (i = 0; i < 5120; i += chunk * 2) {
		if (space - off < 32) {
			off = -1;
			goto done;
		}

		code[off + 1] = __cpu_to_le16(0x8000 | mem);

		chunk = 28;
		if (mem + chunk > 0x4000)
			chunk = 0x4000 - mem;
		if (i + 2 * chunk > 5120)
			chunk = (5120 - i) / 2;

		if (chunk < 28) {
			code[off] = __cpu_to_le16(0x4000 | chunk);
			code[off + 31] = __cpu_to_le16(addr);
			if (mem + chunk == 0x4000) {
				mem = 0x3e00;
				++addr;
			}
		} else {
			code[off] = __cpu_to_le16(0x1000 | 28);
			code[off + 31] = 0;
			mem += 28;
		}

		memcpy(&code[off + 2], buf + i, chunk * 2);
		off += 32;
	}
done:
	kfree(buf);
	return off;
}

static int vti_bitlen(struct go7007 *go)
{
	unsigned int i, max_time_incr = go->sensor_framerate / go->fps_scale;

	for (i = 31; (max_time_incr & ((1 << i) - 1)) == max_time_incr; --i)
		;
	return i + 1;
}

static int mpeg4_frame_header(struct go7007 *go, unsigned char *buf,
		int modulo, enum mpeg_frame_type frame)
{
	int i;
	CODE_GEN(c, buf + 6);
	int mb_count = (go->width >> 4) * (go->height >> 4);

	CODE_ADD(c, frame == PFRAME ? 0x1 : 0x2, 2);
	if (modulo)
		CODE_ADD(c, 0x1, 1);
	CODE_ADD(c, 0x1, 2);
	CODE_ADD(c, 0, vti_bitlen(go));
	CODE_ADD(c, 0x3, 2);
	if (frame == PFRAME)
		CODE_ADD(c, 0, 1);
	CODE_ADD(c, 0xc, 11);
	if (frame != PFRAME)
		CODE_ADD(c, 0x4, 3);
	if (frame != BFRAME_EMPTY) {
		for (i = 0; i < mb_count; ++i) {
			switch (frame) {
			case PFRAME:
				CODE_ADD(c, 0x1, 1);
				break;
			case BFRAME_PRE:
				CODE_ADD(c, 0x47, 8);
				break;
			case BFRAME_POST:
				CODE_ADD(c, 0x27, 7);
				break;
			case BFRAME_BIDIR:
				CODE_ADD(c, 0x5f, 8);
				break;
			case BFRAME_EMPTY: /* keep compiler quiet */
				break;
			}
		}
	}

	/* Byte-align with a zero followed by ones */
	i = 8 - (CODE_LENGTH(c) % 8);
	CODE_ADD(c, 0, 1);
	CODE_ADD(c, (1 << (i - 1)) - 1, i - 1);

	i = CODE_LENGTH(c) + 4 * 8;
	buf[0] = i & 0xff;
	buf[1] = i >> 8;
	buf[2] = 0x00;
	buf[3] = 0x00;
	buf[4] = 0x01;
	buf[5] = 0xb6;
	return i;
}

static int mpeg4_sequence_header(struct go7007 *go, unsigned char *buf, int ext)
{
	const unsigned char head[] = { 0x00, 0x00, 0x01, 0xb0, go->pali,
		0x00, 0x00, 0x01, 0xb5, 0x09,
		0x00, 0x00, 0x01, 0x00,
		0x00, 0x00, 0x01, 0x20, };
	int i, aspect_ratio;
	int fps = go->sensor_framerate / go->fps_scale;
	CODE_GEN(c, buf + 2 + sizeof(head));

	switch (go->aspect_ratio) {
	case GO7007_RATIO_4_3:
		aspect_ratio = go->standard == GO7007_STD_NTSC ? 3 : 2;
		break;
	case GO7007_RATIO_16_9:
		aspect_ratio = go->standard == GO7007_STD_NTSC ? 5 : 4;
		break;
	default:
		aspect_ratio = 1;
		break;
	}

	memcpy(buf + 2, head, sizeof(head));
	CODE_ADD(c, 0x191, 17);
	CODE_ADD(c, aspect_ratio, 4);
	CODE_ADD(c, 0x1, 4);
	CODE_ADD(c, fps, 16);
	CODE_ADD(c, 0x3, 2);
	CODE_ADD(c, 1001, vti_bitlen(go));
	CODE_ADD(c, 1, 1);
	CODE_ADD(c, go->width, 13);
	CODE_ADD(c, 1, 1);
	CODE_ADD(c, go->height, 13);
	CODE_ADD(c, 0x2830, 14);

	/* Byte-align */
	i = 8 - (CODE_LENGTH(c) % 8);
	CODE_ADD(c, 0, 1);
	CODE_ADD(c, (1 << (i - 1)) - 1, i - 1);

	i = CODE_LENGTH(c) + sizeof(head) * 8;
	buf[0] = i & 0xff;
	buf[1] = i >> 8;
	return i;
}

static int gen_mpeg4hdr_to_package(struct go7007 *go,
					__le16 *code, int space, int *framelen)
{
	u8 *buf;
	u16 mem = 0x3e00;
	unsigned int addr = 0x19;
	int i, off = 0, chunk;

	buf = kzalloc(5120, GFP_KERNEL);
	if (buf == NULL)
		return -ENOMEM;

	framelen[0] = mpeg4_frame_header(go, buf, 0, PFRAME);
	i = 368;
	framelen[1] = mpeg4_frame_header(go, buf + i, 0, BFRAME_PRE);
	i += 1632;
	framelen[2] = mpeg4_frame_header(go, buf + i, 0, BFRAME_POST);
	i += 1432;
	framelen[3] = mpeg4_frame_header(go, buf + i, 0, BFRAME_BIDIR);
	i += 1632;
	mpeg4_frame_header(go, buf + i, 0, BFRAME_EMPTY);
	i += 16;
	mpeg4_sequence_header(go, buf + i, 0);
	i += 40;
	for (i = 0; i < 5120; i += chunk * 2) {
		if (space - off < 32) {
			off = -1;
			goto done;
		}

		code[off + 1] = __cpu_to_le16(0x8000 | mem);

		chunk = 28;
		if (mem + chunk > 0x4000)
			chunk = 0x4000 - mem;
		if (i + 2 * chunk > 5120)
			chunk = (5120 - i) / 2;

		if (chunk < 28) {
			code[off] = __cpu_to_le16(0x4000 | chunk);
			code[off + 31] = __cpu_to_le16(addr);
			if (mem + chunk == 0x4000) {
				mem = 0x3e00;
				++addr;
			}
		} else {
			code[off] = __cpu_to_le16(0x1000 | 28);
			code[off + 31] = 0;
			mem += 28;
		}

		memcpy(&code[off + 2], buf + i, chunk * 2);
		off += 32;
	}
	mem = 0x3e00;
	addr = go->ipb ? 0x14f9 : 0x0af9;
	memset(buf, 0, 5120);
	framelen[4] = mpeg4_frame_header(go, buf, 1, PFRAME);
	i = 368;
	framelen[5] = mpeg4_frame_header(go, buf + i, 1, BFRAME_PRE);
	i += 1632;
	framelen[6] = mpeg4_frame_header(go, buf + i, 1, BFRAME_POST);
	i += 1432;
	framelen[7] = mpeg4_frame_header(go, buf + i, 1, BFRAME_BIDIR);
	i += 1632;
	mpeg4_frame_header(go, buf + i, 1, BFRAME_EMPTY);
	i += 16;
	for (i = 0; i < 5120; i += chunk * 2) {
		if (space - off < 32) {
			off = -1;
			goto done;
		}

		code[off + 1] = __cpu_to_le16(0x8000 | mem);

		chunk = 28;
		if (mem + chunk > 0x4000)
			chunk = 0x4000 - mem;
		if (i + 2 * chunk > 5120)
			chunk = (5120 - i) / 2;

		if (chunk < 28) {
			code[off] = __cpu_to_le16(0x4000 | chunk);
			code[off + 31] = __cpu_to_le16(addr);
			if (mem + chunk == 0x4000) {
				mem = 0x3e00;
				++addr;
			}
		} else {
			code[off] = __cpu_to_le16(0x1000 | 28);
			code[off + 31] = 0;
			mem += 28;
		}

		memcpy(&code[off + 2], buf + i, chunk * 2);
		off += 32;
	}
done:
	kfree(buf);
	return off;
}

static int brctrl_to_package(struct go7007 *go,
					__le16 *code, int space, int *framelen)
{
	int converge_speed = 0;
	int lambda = (go->format == V4L2_PIX_FMT_MJPEG || go->dvd_mode) ?
				100 : 0;
	int peak_rate = 6 * go->bitrate / 5;
	int vbv_buffer = go->format == V4L2_PIX_FMT_MJPEG ?
				go->bitrate :
				(go->dvd_mode ? 900000 : peak_rate);
	int fps = go->sensor_framerate / go->fps_scale;
	int q = 0;
	/* Bizarre math below depends on rounding errors in division */
	u32 sgop_expt_addr = go->bitrate / 32 * (go->ipb ? 3 : 1) * 1001 / fps;
	u32 sgop_peak_addr = peak_rate / 32 * 1001 / fps;
	u32 total_expt_addr = go->bitrate / 32 * 1000 / fps * (fps / 1000);
	u32 vbv_alert_addr = vbv_buffer * 3 / (4 * 32);
	u32 cplx[] = {
		q > 0 ? sgop_expt_addr * q :
			2 * go->width * go->height * (go->ipb ? 6 : 4) / 32,
		q > 0 ? sgop_expt_addr * q :
			2 * go->width * go->height * (go->ipb ? 6 : 4) / 32,
		q > 0 ? sgop_expt_addr * q :
			2 * go->width * go->height * (go->ipb ? 6 : 4) / 32,
		q > 0 ? sgop_expt_addr * q :
			2 * go->width * go->height * (go->ipb ? 6 : 4) / 32,
	};
	u32 calc_q = q > 0 ? q : cplx[0] / sgop_expt_addr;
	u16 pack[] = {
		0x200e,		0x0000,
		0xBF20,		go->ipb ? converge_speed_ipb[converge_speed]
					: converge_speed_ip[converge_speed],
		0xBF21,		go->ipb ? 2 : 0,
		0xBF22,		go->ipb ? LAMBDA_table[0][lambda / 2 + 50]
					: 32767,
		0xBF23,		go->ipb ? LAMBDA_table[1][lambda] : 32767,
		0xBF24,		32767,
		0xBF25,		lambda > 99 ? 32767 : LAMBDA_table[3][lambda],
		0xBF26,		sgop_expt_addr & 0x0000FFFF,
		0xBF27,		sgop_expt_addr >> 16,
		0xBF28,		sgop_peak_addr & 0x0000FFFF,
		0xBF29,		sgop_peak_addr >> 16,
		0xBF2A,		vbv_alert_addr & 0x0000FFFF,
		0xBF2B,		vbv_alert_addr >> 16,
		0xBF2C,		0,
		0xBF2D,		0,
		0,		0,

		0x200e,		0x0000,
		0xBF2E,		vbv_alert_addr & 0x0000FFFF,
		0xBF2F,		vbv_alert_addr >> 16,
		0xBF30,		cplx[0] & 0x0000FFFF,
		0xBF31,		cplx[0] >> 16,
		0xBF32,		cplx[1] & 0x0000FFFF,
		0xBF33,		cplx[1] >> 16,
		0xBF34,		cplx[2] & 0x0000FFFF,
		0xBF35,		cplx[2] >> 16,
		0xBF36,		cplx[3] & 0x0000FFFF,
		0xBF37,		cplx[3] >> 16,
		0xBF38,		0,
		0xBF39,		0,
		0xBF3A,		total_expt_addr & 0x0000FFFF,
		0xBF3B,		total_expt_addr >> 16,
		0,		0,

		0x200e,		0x0000,
		0xBF3C,		total_expt_addr & 0x0000FFFF,
		0xBF3D,		total_expt_addr >> 16,
		0xBF3E,		0,
		0xBF3F,		0,
		0xBF48,		0,
		0xBF49,		0,
		0xBF4A,		calc_q < 4 ? 4 : (calc_q > 124 ? 124 : calc_q),
		0xBF4B,		4,
		0xBF4C,		0,
		0xBF4D,		0,
		0xBF4E,		0,
		0xBF4F,		0,
		0xBF50,		0,
		0xBF51,		0,
		0,		0,

		0x200e,		0x0000,
		0xBF40,		sgop_expt_addr & 0x0000FFFF,
		0xBF41,		sgop_expt_addr >> 16,
		0xBF42,		0,
		0xBF43,		0,
		0xBF44,		0,
		0xBF45,		0,
		0xBF46,		(go->width >> 4) * (go->height >> 4),
		0xBF47,		0,
		0xBF64,		0,
		0xBF65,		0,
		0xBF18,		framelen[4],
		0xBF19,		framelen[5],
		0xBF1A,		framelen[6],
		0xBF1B,		framelen[7],
		0,		0,

#if 0
		/* Remove once we don't care about matching */
		0x200e,		0x0000,
		0xBF56,		4,
		0xBF57,		0,
		0xBF58,		5,
		0xBF59,		0,
		0xBF5A,		6,
		0xBF5B,		0,
		0xBF5C,		8,
		0xBF5D,		0,
		0xBF5E,		1,
		0xBF5F,		0,
		0xBF60,		1,
		0xBF61,		0,
		0xBF62,		0,
		0xBF63,		0,
		0,		0,
#else
		0x2008,		0x0000,
		0xBF56,		4,
		0xBF57,		0,
		0xBF58,		5,
		0xBF59,		0,
		0xBF5A,		6,
		0xBF5B,		0,
		0xBF5C,		8,
		0xBF5D,		0,
		0,		0,
		0,		0,
		0,		0,
		0,		0,
		0,		0,
		0,		0,
		0,		0,
#endif

		0x200e,		0x0000,
		0xBF10,		0,
		0xBF11,		0,
		0xBF12,		0,
		0xBF13,		0,
		0xBF14,		0,
		0xBF15,		0,
		0xBF16,		0,
		0xBF17,		0,
		0xBF7E,		0,
		0xBF7F,		1,
		0xBF52,		framelen[0],
		0xBF53,		framelen[1],
		0xBF54,		framelen[2],
		0xBF55,		framelen[3],
		0,		0,
	};

	return copy_packages(code, pack, 6, space);
}

static int config_package(struct go7007 *go, __le16 *code, int space)
{
	int fps = go->sensor_framerate / go->fps_scale / 1000;
	int rows = go->interlace_coding ? go->height / 32 : go->height / 16;
	int brc_window_size = fps;
	int q_min = 2, q_max = 31;
	int THACCoeffSet0 = 0;
	u16 pack[] = {
		0x200e,		0x0000,
		0xc002,		0x14b4,
		0xc003,		0x28b4,
		0xc004,		0x3c5a,
		0xdc05,		0x2a77,
		0xc6c3,		go->format == V4L2_PIX_FMT_MPEG4 ? 0 :
				(go->format == V4L2_PIX_FMT_H263 ? 0 : 1),
		0xc680,		go->format == V4L2_PIX_FMT_MPEG4 ? 0xf1 :
				(go->format == V4L2_PIX_FMT_H263 ? 0x61 :
									0xd3),
		0xc780,		0x0140,
		0xe009,		0x0001,
		0xc60f,		0x0008,
		0xd4ff,		0x0002,
		0xe403,		2340,
		0xe406,		75,
		0xd411,		0x0001,
		0xd410,		0xa1d6,
		0x0001,		0x2801,

		0x200d,		0x0000,
		0xe402,		0x018b,
		0xe401,		0x8b01,
		0xd472,		(go->board_info->sensor_flags &
							GO7007_SENSOR_TV) &&
						(!go->interlace_coding) ?
					0x01b0 : 0x0170,
		0xd475,		(go->board_info->sensor_flags &
							GO7007_SENSOR_TV) &&
						(!go->interlace_coding) ?
					0x0008 : 0x0009,
		0xc404,		go->interlace_coding ? 0x44 :
				(go->format == V4L2_PIX_FMT_MPEG4 ? 0x11 :
				(go->format == V4L2_PIX_FMT_MPEG1 ? 0x02 :
				(go->format == V4L2_PIX_FMT_MPEG2 ? 0x04 :
				(go->format == V4L2_PIX_FMT_H263  ? 0x08 :
								     0x20)))),
		0xbf0a,		(go->format == V4L2_PIX_FMT_MPEG4 ? 8 :
				(go->format == V4L2_PIX_FMT_MPEG1 ? 1 :
				(go->format == V4L2_PIX_FMT_MPEG2 ? 2 :
				(go->format == V4L2_PIX_FMT_H263 ? 4 : 16)))) |
				((go->repeat_seqhead ? 1 : 0) << 6) |
				((go->dvd_mode ? 1 : 0) << 9) |
				((go->gop_header_enable ? 1 : 0) << 10),
		0xbf0b,		0,
		0xdd5a,		go->ipb ? 0x14 : 0x0a,
		0xbf0c,		0,
		0xbf0d,		0,
		0xc683,		THACCoeffSet0,
		0xc40a,		(go->width << 4) | rows,
		0xe01a,		go->board_info->hpi_buffer_cap,
		0,		0,
		0,		0,

		0x2008,		0,
		0xe402,		0x88,
		0xe401,		0x8f01,
		0xbf6a,		0,
		0xbf6b,		0,
		0xbf6c,		0,
		0xbf6d,		0,
		0xbf6e,		0,
		0xbf6f,		0,
		0,		0,
		0,		0,
		0,		0,
		0,		0,
		0,		0,
		0,		0,
		0,		0,

		0x200e,		0,
		0xbf66,		brc_window_size,
		0xbf67,		0,
		0xbf68,		q_min,
		0xbf69,		q_max,
		0xbfe0,		0,
		0xbfe1,		0,
		0xbfe2,		0,
		0xbfe3,		go->ipb ? 3 : 1,
		0xc031,		go->board_info->sensor_flags &
					GO7007_SENSOR_VBI ? 1 : 0,
		0xc01c,		0x1f,
		0xdd8c,		0x15,
		0xdd94,		0x15,
		0xdd88,		go->ipb ? 0x1401 : 0x0a01,
		0xdd90,		go->ipb ? 0x1401 : 0x0a01,
		0,		0,

		0x200e,		0,
		0xbfe4,		0,
		0xbfe5,		0,
		0xbfe6,		0,
		0xbfe7,		fps << 8,
		0xbfe8,		0x3a00,
		0xbfe9,		0,
		0xbfea,		0,
		0xbfeb,		0,
		0xbfec,		(go->interlace_coding ? 1 << 15 : 0) |
					(go->modet_enable ? 0xa : 0) |
					(go->board_info->sensor_flags &
						GO7007_SENSOR_VBI ? 1 : 0),
		0xbfed,		0,
		0xbfee,		0,
		0xbfef,		0,
		0xbff0,		go->board_info->sensor_flags &
					GO7007_SENSOR_TV ? 0xf060 : 0xb060,
		0xbff1,		0,
		0,		0,
	};

	return copy_packages(code, pack, 5, space);
}

static int seqhead_to_package(struct go7007 *go, __le16 *code, int space,
	int (*sequence_header_func)(struct go7007 *go,
		unsigned char *buf, int ext))
{
	int vop_time_increment_bitlength = vti_bitlen(go);
	int fps = go->sensor_framerate / go->fps_scale *
					(go->interlace_coding ? 2 : 1);
	unsigned char buf[40] = { };
	int len = sequence_header_func(go, buf, 1);
	u16 pack[] = {
		0x2006,		0,
		0xbf08,		fps,
		0xbf09,		0,
		0xbff2,		vop_time_increment_bitlength,
		0xbff3,		(1 << vop_time_increment_bitlength) - 1,
		0xbfe6,		0,
		0xbfe7,		(fps / 1000) << 8,
		0,		0,
		0,		0,
		0,		0,
		0,		0,
		0,		0,
		0,		0,
		0,		0,
		0,		0,
		0,		0,

		0x2007,		0,
		0xc800,		buf[2] << 8 | buf[3],
		0xc801,		buf[4] << 8 | buf[5],
		0xc802,		buf[6] << 8 | buf[7],
		0xc803,		buf[8] << 8 | buf[9],
		0xc406,		64,
		0xc407,		len - 64,
		0xc61b,		1,
		0,		0,
		0,		0,
		0,		0,
		0,		0,
		0,		0,
		0,		0,
		0,		0,
		0,		0,

		0x200e,		0,
		0xc808,		buf[10] << 8 | buf[11],
		0xc809,		buf[12] << 8 | buf[13],
		0xc80a,		buf[14] << 8 | buf[15],
		0xc80b,		buf[16] << 8 | buf[17],
		0xc80c,		buf[18] << 8 | buf[19],
		0xc80d,		buf[20] << 8 | buf[21],
		0xc80e,		buf[22] << 8 | buf[23],
		0xc80f,		buf[24] << 8 | buf[25],
		0xc810,		buf[26] << 8 | buf[27],
		0xc811,		buf[28] << 8 | buf[29],
		0xc812,		buf[30] << 8 | buf[31],
		0xc813,		buf[32] << 8 | buf[33],
		0xc814,		buf[34] << 8 | buf[35],
		0xc815,		buf[36] << 8 | buf[37],
		0,		0,
		0,		0,
		0,		0,
	};

	return copy_packages(code, pack, 3, space);
}

static int relative_prime(int big, int little)
{
	int remainder;

	while (little != 0) {
		remainder = big % little;
		big = little;
		little = remainder;
	}
	return big;
}

static int avsync_to_package(struct go7007 *go, __le16 *code, int space)
{
	int arate = go->board_info->audio_rate * 1001 * go->fps_scale;
	int ratio = arate / go->sensor_framerate;
	int adjratio = ratio * 215 / 100;
	int rprime = relative_prime(go->sensor_framerate,
					arate % go->sensor_framerate);
	int f1 = (arate % go->sensor_framerate) / rprime;
	int f2 = (go->sensor_framerate - arate % go->sensor_framerate) / rprime;
	u16 pack[] = {
		0x200e,		0,
		0xbf98,		(u16)((-adjratio) & 0xffff),
		0xbf99,		(u16)((-adjratio) >> 16),
		0xbf92,		0,
		0xbf93,		0,
		0xbff4,		f1 > f2 ? f1 : f2,
		0xbff5,		f1 < f2 ? f1 : f2,
		0xbff6,		f1 < f2 ? ratio : ratio + 1,
		0xbff7,		f1 > f2 ? ratio : ratio + 1,
		0xbff8,		0,
		0xbff9,		0,
		0xbffa,		adjratio & 0xffff,
		0xbffb,		adjratio >> 16,
		0xbf94,		0,
		0xbf95,		0,
		0,		0,
	};

	return copy_packages(code, pack, 1, space);
}

static int final_package(struct go7007 *go, __le16 *code, int space)
{
	int rows = go->interlace_coding ? go->height / 32 : go->height / 16;
	u16 pack[] = {
		0x8000,
		0,
		0,
		0,
		0,
		0,
		0,
		2,
		((go->board_info->sensor_flags & GO7007_SENSOR_TV) &&
						(!go->interlace_coding) ?
					(1 << 14) | (1 << 9) : 0) |
			((go->encoder_subsample ? 1 : 0) << 8) |
			(go->board_info->sensor_flags &
				GO7007_SENSOR_CONFIG_MASK),
		((go->encoder_v_halve ? 1 : 0) << 14) |
			(go->encoder_v_halve ? rows << 9 : rows << 8) |
			(go->encoder_h_halve ? 1 << 6 : 0) |
			(go->encoder_h_halve ? go->width >> 3 : go->width >> 4),
		(1 << 15) | (go->encoder_v_offset << 6) |
			(1 << 7) | (go->encoder_h_offset >> 2),
		(1 << 6),
		0,
		0,
		((go->fps_scale - 1) << 8) |
			(go->board_info->sensor_flags & GO7007_SENSOR_TV ?
						(1 << 7) : 0) |
			0x41,
		go->ipb ? 0xd4c : 0x36b,
		(rows << 8) | (go->width >> 4),
		go->format == V4L2_PIX_FMT_MPEG4 ? 0x0404 : 0,
		(1 << 15) | ((go->interlace_coding ? 1 : 0) << 13) |
			((go->closed_gop ? 1 : 0) << 12) |
			((go->format == V4L2_PIX_FMT_MPEG4 ? 1 : 0) << 11) |
		/*	(1 << 9) |   */
			((go->ipb ? 3 : 0) << 7) |
			((go->modet_enable ? 1 : 0) << 2) |
			((go->dvd_mode ? 1 : 0) << 1) | 1,
		(go->format == V4L2_PIX_FMT_MPEG1 ? 0x89a0 :
			(go->format == V4L2_PIX_FMT_MPEG2 ? 0x89a0 :
			(go->format == V4L2_PIX_FMT_MJPEG ? 0x89a0 :
			(go->format == V4L2_PIX_FMT_MPEG4 ? 0x8920 :
			(go->format == V4L2_PIX_FMT_H263 ? 0x8920 : 0))))),
		go->ipb ? 0x1f15 : 0x1f0b,
		go->ipb ? 0x0015 : 0x000b,
		go->ipb ? 0xa800 : 0x5800,
		0xffff,
		0x0020 + 0x034b * 0,
		0x0020 + 0x034b * 1,
		0x0020 + 0x034b * 2,
		0x0020 + 0x034b * 3,
		0x0020 + 0x034b * 4,
		0x0020 + 0x034b * 5,
		go->ipb ? (go->gop_size / 3) : go->gop_size,
		(go->height >> 4) * (go->width >> 4) * 110 / 100,
	};

	return copy_packages(code, pack, 1, space);
}

static int audio_to_package(struct go7007 *go, __le16 *code, int space)
{
	int clock_config = ((go->board_info->audio_flags &
				GO7007_AUDIO_I2S_MASTER ? 1 : 0) << 11) |
			((go->board_info->audio_flags &
				GO7007_AUDIO_OKI_MODE ? 1 : 0) << 8) |
			(((go->board_info->audio_bclk_div / 4) - 1) << 4) |
			(go->board_info->audio_main_div - 1);
	u16 pack[] = {
		0x200d,		0,
		0x9002,		0,
		0x9002,		0,
		0x9031,		0,
		0x9032,		0,
		0x9033,		0,
		0x9034,		0,
		0x9035,		0,
		0x9036,		0,
		0x9037,		0,
		0x9040,		0,
		0x9000,		clock_config,
		0x9001,		(go->board_info->audio_flags & 0xffff) |
					(1 << 9),
		0x9000,		((go->board_info->audio_flags &
						GO7007_AUDIO_I2S_MASTER ?
						1 : 0) << 10) |
					clock_config,
		0,		0,
		0,		0,
		0x2005,		0,
		0x9041,		0,
		0x9042,		256,
		0x9043,		0,
		0x9044,		16,
		0x9045,		16,
		0,		0,
		0,		0,
		0,		0,
		0,		0,
		0,		0,
		0,		0,
		0,		0,
		0,		0,
		0,		0,
		0,		0,
	};

	return copy_packages(code, pack, 2, space);
}

static int modet_to_package(struct go7007 *go, __le16 *code, int space)
{
	bool has_modet0 = go->modet[0].enable;
	bool has_modet1 = go->modet[1].enable;
	bool has_modet2 = go->modet[2].enable;
	bool has_modet3 = go->modet[3].enable;
	int ret, mb, i, addr, cnt = 0;
	u16 pack[32];
	u16 thresholds[] = {
		0x200e,		0,
		0xbf82,		has_modet0 ? go->modet[0].pixel_threshold : 32767,
		0xbf83,		has_modet1 ? go->modet[1].pixel_threshold : 32767,
		0xbf84,		has_modet2 ? go->modet[2].pixel_threshold : 32767,
		0xbf85,		has_modet3 ? go->modet[3].pixel_threshold : 32767,
		0xbf86,		has_modet0 ? go->modet[0].motion_threshold : 32767,
		0xbf87,		has_modet1 ? go->modet[1].motion_threshold : 32767,
		0xbf88,		has_modet2 ? go->modet[2].motion_threshold : 32767,
		0xbf89,		has_modet3 ? go->modet[3].motion_threshold : 32767,
		0xbf8a,		has_modet0 ? go->modet[0].mb_threshold : 32767,
		0xbf8b,		has_modet1 ? go->modet[1].mb_threshold : 32767,
		0xbf8c,		has_modet2 ? go->modet[2].mb_threshold : 32767,
		0xbf8d,		has_modet3 ? go->modet[3].mb_threshold : 32767,
		0xbf8e,		0,
		0xbf8f,		0,
		0,		0,
	};

	ret = copy_packages(code, thresholds, 1, space);
	if (ret < 0)
		return -1;
	cnt += ret;

	addr = 0xbac0;
	memset(pack, 0, 64);
	i = 0;
	for (mb = 0; mb < 1624; ++mb) {
		pack[i * 2 + 3] <<= 2;
		pack[i * 2 + 3] |= go->modet_map[mb];
		if (mb % 8 != 7)
			continue;
		pack[i * 2 + 2] = addr++;
		++i;
		if (i == 10 || mb == 1623) {
			pack[0] = 0x2000 | i;
			ret = copy_packages(code + cnt, pack, 1, space - cnt);
			if (ret < 0)
				return -1;
			cnt += ret;
			i = 0;
			memset(pack, 0, 64);
		}
		pack[i * 2 + 3] = 0;
	}

	memset(pack, 0, 64);
	i = 0;
	for (addr = 0xbb90; addr < 0xbbfa; ++addr) {
		pack[i * 2 + 2] = addr;
		pack[i * 2 + 3] = 0;
		++i;
		if (i == 10 || addr == 0xbbf9) {
			pack[0] = 0x2000 | i;
			ret = copy_packages(code + cnt, pack, 1, space - cnt);
			if (ret < 0)
				return -1;
			cnt += ret;
			i = 0;
			memset(pack, 0, 64);
		}
	}
	return cnt;
}

static noinline_for_stack int do_special(struct go7007 *go, u16 type,
					 __le16 *code, int space, int *framelen)
{
	switch (type) {
	case SPECIAL_FRM_HEAD:
		switch (go->format) {
		case V4L2_PIX_FMT_MJPEG:
			return gen_mjpeghdr_to_package(go, code, space);
		case V4L2_PIX_FMT_MPEG1:
		case V4L2_PIX_FMT_MPEG2:
			return gen_mpeg1hdr_to_package(go, code, space,
								framelen);
		case V4L2_PIX_FMT_MPEG4:
			return gen_mpeg4hdr_to_package(go, code, space,
								framelen);
		default:
			break;
		}
		break;
	case SPECIAL_BRC_CTRL:
		return brctrl_to_package(go, code, space, framelen);
	case SPECIAL_CONFIG:
		return config_package(go, code, space);
	case SPECIAL_SEQHEAD:
		switch (go->format) {
		case V4L2_PIX_FMT_MPEG1:
		case V4L2_PIX_FMT_MPEG2:
			return seqhead_to_package(go, code, space,
					mpeg1_sequence_header);
		case V4L2_PIX_FMT_MPEG4:
			return seqhead_to_package(go, code, space,
					mpeg4_sequence_header);
		default:
			return 0;
		}
	case SPECIAL_AV_SYNC:
		return avsync_to_package(go, code, space);
	case SPECIAL_FINAL:
		return final_package(go, code, space);
	case SPECIAL_AUDIO:
		return audio_to_package(go, code, space);
	case SPECIAL_MODET:
		return modet_to_package(go, code, space);
	}
	dev_err(go->dev,
		"firmware file contains unsupported feature %04x\n", type);
	return -1;
}

int go7007_construct_fw_image(struct go7007 *go, u8 **fw, int *fwlen)
{
	const struct firmware *fw_entry;
	__le16 *code, *src;
	int framelen[8] = { }; /* holds the lengths of empty frame templates */
	int codespace = 64 * 1024, i = 0, srclen, chunk_len, chunk_flags;
	int mode_flag;
	int ret;

	switch (go->format) {
	case V4L2_PIX_FMT_MJPEG:
		mode_flag = FLAG_MODE_MJPEG;
		break;
	case V4L2_PIX_FMT_MPEG1:
		mode_flag = FLAG_MODE_MPEG1;
		break;
	case V4L2_PIX_FMT_MPEG2:
		mode_flag = FLAG_MODE_MPEG2;
		break;
	case V4L2_PIX_FMT_MPEG4:
		mode_flag = FLAG_MODE_MPEG4;
		break;
	default:
		return -1;
	}
	if (request_firmware(&fw_entry, GO7007_FW_NAME, go->dev)) {
		dev_err(go->dev,
			"unable to load firmware from file \"%s\"\n",
			GO7007_FW_NAME);
		return -1;
	}
	code = kcalloc(codespace, 2, GFP_KERNEL);
	if (code == NULL)
		goto fw_failed;

	src = (__le16 *)fw_entry->data;
	srclen = fw_entry->size / 2;
	while (srclen >= 2) {
		chunk_flags = __le16_to_cpu(src[0]);
		chunk_len = __le16_to_cpu(src[1]);
		if (chunk_len + 2 > srclen) {
			dev_err(go->dev,
				"firmware file \"%s\" appears to be corrupted\n",
				GO7007_FW_NAME);
			goto fw_failed;
		}
		if (chunk_flags & mode_flag) {
			if (chunk_flags & FLAG_SPECIAL) {
				ret = do_special(go, __le16_to_cpu(src[2]),
					&code[i], codespace - i, framelen);
				if (ret < 0) {
					dev_err(go->dev,
						"insufficient memory for firmware construction\n");
					goto fw_failed;
				}
				i += ret;
			} else {
				if (codespace - i < chunk_len) {
					dev_err(go->dev,
						"insufficient memory for firmware construction\n");
					goto fw_failed;
				}
				memcpy(&code[i], &src[2], chunk_len * 2);
				i += chunk_len;
			}
		}
		srclen -= chunk_len + 2;
		src += chunk_len + 2;
	}
	release_firmware(fw_entry);
	*fw = (u8 *)code;
	*fwlen = i * 2;
	return 0;

fw_failed:
	kfree(code);
	release_firmware(fw_entry);
	return -1;
}

MODULE_FIRMWARE(GO7007_FW_NAME);