// 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 … /* Constants used in the source firmware image to describe code segments */ #define FLAG_MODE_MJPEG … #define FLAG_MODE_MPEG1 … #define FLAG_MODE_MPEG2 … #define FLAG_MODE_MPEG4 … #define FLAG_MODE_H263 … #define FLAG_MODE_ALL … #define FLAG_SPECIAL … #define SPECIAL_FRM_HEAD … #define SPECIAL_BRC_CTRL … #define SPECIAL_CONFIG … #define SPECIAL_SEQHEAD … #define SPECIAL_AV_SYNC … #define SPECIAL_FINAL … #define SPECIAL_AUDIO … #define SPECIAL_MODET … /* Little data class for creating MPEG headers bit-by-bit */ struct code_gen { … }; #define CODE_GEN(name, dest) … #define CODE_ADD(name, val, length) … #define CODE_LENGTH(name) … /* Tables for creating the bitrate control data */ static const s16 converge_speed_ip[101] = …; static const s16 converge_speed_ipb[101] = …; static const s16 LAMBDA_table[4][101] = …; /* MPEG blank frame generation tables */ enum mpeg_frame_type { … }; static const u32 addrinctab[33][2] = …; /* Standard JPEG tables */ static const u8 default_intra_quant_table[] = …; static const u8 bits_dc_luminance[] = …; static const u8 val_dc_luminance[] = …; static const u8 bits_dc_chrominance[] = …; static const u8 val_dc_chrominance[] = …; static const u8 bits_ac_luminance[] = …; static const u8 val_ac_luminance[] = …; static const u8 bits_ac_chrominance[] = …; static const u8 val_ac_chrominance[] = …; /* 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] = …; static int copy_packages(__le16 *dest, u16 *src, int pkg_cnt, int space) { … } static int mjpeg_frame_header(struct go7007 *go, unsigned char *buf, int q) { … } static int gen_mjpeghdr_to_package(struct go7007 *go, __le16 *code, int space) { … } static int mpeg1_frame_header(struct go7007 *go, unsigned char *buf, int modulo, int pict_struct, enum mpeg_frame_type frame) { … } static int mpeg1_sequence_header(struct go7007 *go, unsigned char *buf, int ext) { … } static int gen_mpeg1hdr_to_package(struct go7007 *go, __le16 *code, int space, int *framelen) { … } static int vti_bitlen(struct go7007 *go) { … } static int mpeg4_frame_header(struct go7007 *go, unsigned char *buf, int modulo, enum mpeg_frame_type frame) { … } static int mpeg4_sequence_header(struct go7007 *go, unsigned char *buf, int ext) { … } static int gen_mpeg4hdr_to_package(struct go7007 *go, __le16 *code, int space, int *framelen) { … } static int brctrl_to_package(struct go7007 *go, __le16 *code, int space, int *framelen) { … } static int config_package(struct go7007 *go, __le16 *code, int 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)) { … } static int relative_prime(int big, int little) { … } static int avsync_to_package(struct go7007 *go, __le16 *code, int space) { … } static int final_package(struct go7007 *go, __le16 *code, int space) { … } static int audio_to_package(struct go7007 *go, __le16 *code, int space) { … } static int modet_to_package(struct go7007 *go, __le16 *code, int space) { … } static noinline_for_stack int do_special(struct go7007 *go, u16 type, __le16 *code, int space, int *framelen) { … } int go7007_construct_fw_image(struct go7007 *go, u8 **fw, int *fwlen) { … } MODULE_FIRMWARE(…);
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