// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* TW5864 driver - video encoding functions
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*
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* Copyright (C) 2016 Bluecherry, LLC <maintainers@bluecherrydvr.com>
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*/
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#include <linux/module.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-event.h>
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#include <media/videobuf2-dma-contig.h>
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#include "tw5864.h"
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#include "tw5864-reg.h"
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#define QUANTIZATION_TABLE_LEN 96
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#define VLC_LOOKUP_TABLE_LEN 1024
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static const u16 forward_quantization_table[QUANTIZATION_TABLE_LEN] = {
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0x3333, 0x1f82, 0x3333, 0x1f82, 0x1f82, 0x147b, 0x1f82, 0x147b,
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0x3333, 0x1f82, 0x3333, 0x1f82, 0x1f82, 0x147b, 0x1f82, 0x147b,
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0x2e8c, 0x1d42, 0x2e8c, 0x1d42, 0x1d42, 0x1234, 0x1d42, 0x1234,
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0x2e8c, 0x1d42, 0x2e8c, 0x1d42, 0x1d42, 0x1234, 0x1d42, 0x1234,
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0x2762, 0x199a, 0x2762, 0x199a, 0x199a, 0x1062, 0x199a, 0x1062,
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0x2762, 0x199a, 0x2762, 0x199a, 0x199a, 0x1062, 0x199a, 0x1062,
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0x2492, 0x16c1, 0x2492, 0x16c1, 0x16c1, 0x0e3f, 0x16c1, 0x0e3f,
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0x2492, 0x16c1, 0x2492, 0x16c1, 0x16c1, 0x0e3f, 0x16c1, 0x0e3f,
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0x2000, 0x147b, 0x2000, 0x147b, 0x147b, 0x0d1b, 0x147b, 0x0d1b,
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0x2000, 0x147b, 0x2000, 0x147b, 0x147b, 0x0d1b, 0x147b, 0x0d1b,
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0x1c72, 0x11cf, 0x1c72, 0x11cf, 0x11cf, 0x0b4d, 0x11cf, 0x0b4d,
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0x1c72, 0x11cf, 0x1c72, 0x11cf, 0x11cf, 0x0b4d, 0x11cf, 0x0b4d
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};
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static const u16 inverse_quantization_table[QUANTIZATION_TABLE_LEN] = {
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0x800a, 0x800d, 0x800a, 0x800d, 0x800d, 0x8010, 0x800d, 0x8010,
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0x800a, 0x800d, 0x800a, 0x800d, 0x800d, 0x8010, 0x800d, 0x8010,
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0x800b, 0x800e, 0x800b, 0x800e, 0x800e, 0x8012, 0x800e, 0x8012,
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0x800b, 0x800e, 0x800b, 0x800e, 0x800e, 0x8012, 0x800e, 0x8012,
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0x800d, 0x8010, 0x800d, 0x8010, 0x8010, 0x8014, 0x8010, 0x8014,
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0x800d, 0x8010, 0x800d, 0x8010, 0x8010, 0x8014, 0x8010, 0x8014,
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0x800e, 0x8012, 0x800e, 0x8012, 0x8012, 0x8017, 0x8012, 0x8017,
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0x800e, 0x8012, 0x800e, 0x8012, 0x8012, 0x8017, 0x8012, 0x8017,
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0x8010, 0x8014, 0x8010, 0x8014, 0x8014, 0x8019, 0x8014, 0x8019,
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0x8010, 0x8014, 0x8010, 0x8014, 0x8014, 0x8019, 0x8014, 0x8019,
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0x8012, 0x8017, 0x8012, 0x8017, 0x8017, 0x801d, 0x8017, 0x801d,
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0x8012, 0x8017, 0x8012, 0x8017, 0x8017, 0x801d, 0x8017, 0x801d
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};
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static const u16 encoder_vlc_lookup_table[VLC_LOOKUP_TABLE_LEN] = {
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0x011, 0x000, 0x000, 0x000, 0x065, 0x021, 0x000, 0x000, 0x087, 0x064,
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0x031, 0x000, 0x097, 0x086, 0x075, 0x053, 0x0a7, 0x096, 0x085, 0x063,
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0x0b7, 0x0a6, 0x095, 0x074, 0x0df, 0x0b6, 0x0a5, 0x084, 0x0db, 0x0de,
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0x0b5, 0x094, 0x0d8, 0x0da, 0x0dd, 0x0a4, 0x0ef, 0x0ee, 0x0d9, 0x0b4,
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0x0eb, 0x0ea, 0x0ed, 0x0dc, 0x0ff, 0x0fe, 0x0e9, 0x0ec, 0x0fb, 0x0fa,
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0x0fd, 0x0e8, 0x10f, 0x0f1, 0x0f9, 0x0fc, 0x10b, 0x10e, 0x10d, 0x0f8,
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0x107, 0x10a, 0x109, 0x10c, 0x104, 0x106, 0x105, 0x108, 0x023, 0x000,
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0x000, 0x000, 0x06b, 0x022, 0x000, 0x000, 0x067, 0x057, 0x033, 0x000,
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0x077, 0x06a, 0x069, 0x045, 0x087, 0x066, 0x065, 0x044, 0x084, 0x076,
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0x075, 0x056, 0x097, 0x086, 0x085, 0x068, 0x0bf, 0x096, 0x095, 0x064,
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0x0bb, 0x0be, 0x0bd, 0x074, 0x0cf, 0x0ba, 0x0b9, 0x094, 0x0cb, 0x0ce,
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0x0cd, 0x0bc, 0x0c8, 0x0ca, 0x0c9, 0x0b8, 0x0df, 0x0de, 0x0dd, 0x0cc,
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0x0db, 0x0da, 0x0d9, 0x0dc, 0x0d7, 0x0eb, 0x0d6, 0x0d8, 0x0e9, 0x0e8,
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0x0ea, 0x0d1, 0x0e7, 0x0e6, 0x0e5, 0x0e4, 0x04f, 0x000, 0x000, 0x000,
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0x06f, 0x04e, 0x000, 0x000, 0x06b, 0x05f, 0x04d, 0x000, 0x068, 0x05c,
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0x05e, 0x04c, 0x07f, 0x05a, 0x05b, 0x04b, 0x07b, 0x058, 0x059, 0x04a,
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0x079, 0x06e, 0x06d, 0x049, 0x078, 0x06a, 0x069, 0x048, 0x08f, 0x07e,
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0x07d, 0x05d, 0x08b, 0x08e, 0x07a, 0x06c, 0x09f, 0x08a, 0x08d, 0x07c,
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0x09b, 0x09e, 0x089, 0x08c, 0x098, 0x09a, 0x09d, 0x088, 0x0ad, 0x097,
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0x099, 0x09c, 0x0a9, 0x0ac, 0x0ab, 0x0aa, 0x0a5, 0x0a8, 0x0a7, 0x0a6,
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0x0a1, 0x0a4, 0x0a3, 0x0a2, 0x021, 0x000, 0x000, 0x000, 0x067, 0x011,
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0x000, 0x000, 0x064, 0x066, 0x031, 0x000, 0x063, 0x073, 0x072, 0x065,
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0x062, 0x083, 0x082, 0x070, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x011, 0x010,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x011, 0x021, 0x020, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x023, 0x022, 0x021, 0x020, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x023, 0x022, 0x021, 0x031,
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0x030, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x023, 0x022, 0x033, 0x032, 0x031, 0x030, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x023, 0x030,
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0x031, 0x033, 0x032, 0x035, 0x034, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x037, 0x036, 0x035, 0x034, 0x033, 0x032,
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0x031, 0x041, 0x051, 0x061, 0x071, 0x081, 0x091, 0x0a1, 0x0b1, 0x000,
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0x002, 0x000, 0x0e4, 0x011, 0x0f4, 0x002, 0x024, 0x003, 0x005, 0x012,
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0x034, 0x013, 0x065, 0x024, 0x013, 0x063, 0x015, 0x022, 0x075, 0x034,
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0x044, 0x023, 0x023, 0x073, 0x054, 0x033, 0x033, 0x004, 0x043, 0x014,
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0x011, 0x043, 0x014, 0x001, 0x025, 0x015, 0x035, 0x025, 0x064, 0x055,
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0x045, 0x035, 0x074, 0x065, 0x085, 0x0d5, 0x012, 0x095, 0x055, 0x045,
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0x095, 0x0e5, 0x084, 0x075, 0x022, 0x0a5, 0x094, 0x085, 0x032, 0x0b5,
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0x003, 0x0c5, 0x001, 0x044, 0x0a5, 0x032, 0x0b5, 0x094, 0x0c5, 0x0a4,
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0x0a4, 0x054, 0x0d5, 0x0b4, 0x0b4, 0x064, 0x0f5, 0x0f5, 0x053, 0x0d4,
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0x0e5, 0x0c4, 0x105, 0x105, 0x0c4, 0x074, 0x063, 0x0e4, 0x0d4, 0x084,
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0x073, 0x0f4, 0x004, 0x005, 0x000, 0x053, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x011, 0x021, 0x031, 0x030, 0x011, 0x021, 0x020, 0x000,
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0x011, 0x010, 0x000, 0x000, 0x011, 0x033, 0x032, 0x043, 0x042, 0x053,
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0x052, 0x063, 0x062, 0x073, 0x072, 0x083, 0x082, 0x093, 0x092, 0x091,
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0x037, 0x036, 0x035, 0x034, 0x033, 0x045, 0x044, 0x043, 0x042, 0x053,
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0x052, 0x063, 0x062, 0x061, 0x060, 0x000, 0x045, 0x037, 0x036, 0x035,
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0x044, 0x043, 0x034, 0x033, 0x042, 0x053, 0x052, 0x061, 0x051, 0x060,
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0x000, 0x000, 0x053, 0x037, 0x045, 0x044, 0x036, 0x035, 0x034, 0x043,
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0x033, 0x042, 0x052, 0x051, 0x050, 0x000, 0x000, 0x000, 0x045, 0x044,
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0x043, 0x037, 0x036, 0x035, 0x034, 0x033, 0x042, 0x051, 0x041, 0x050,
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0x000, 0x000, 0x000, 0x000, 0x061, 0x051, 0x037, 0x036, 0x035, 0x034,
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0x033, 0x032, 0x041, 0x031, 0x060, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x061, 0x051, 0x035, 0x034, 0x033, 0x023, 0x032, 0x041, 0x031, 0x060,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x061, 0x041, 0x051, 0x033,
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0x023, 0x022, 0x032, 0x031, 0x060, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x061, 0x060, 0x041, 0x023, 0x022, 0x031, 0x021, 0x051,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x051, 0x050,
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0x031, 0x023, 0x022, 0x021, 0x041, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x040, 0x041, 0x031, 0x032, 0x011, 0x033,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x040, 0x041, 0x021, 0x011, 0x031, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x030, 0x031, 0x011, 0x021,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x020, 0x021, 0x011, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x010, 0x011,
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0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000,
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0x000, 0x000, 0x000, 0x000
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};
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static const unsigned int lambda_lookup_table[] = {
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0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020,
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0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020,
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0x0040, 0x0040, 0x0040, 0x0040, 0x0060, 0x0060, 0x0060, 0x0080,
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0x0080, 0x0080, 0x00a0, 0x00c0, 0x00c0, 0x00e0, 0x0100, 0x0120,
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0x0140, 0x0160, 0x01a0, 0x01c0, 0x0200, 0x0240, 0x0280, 0x02e0,
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0x0320, 0x03a0, 0x0400, 0x0480, 0x0500, 0x05a0, 0x0660, 0x0720,
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0x0800, 0x0900, 0x0a20, 0x0b60
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};
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static const unsigned int intra4x4_lambda3[] = {
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1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1,
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2, 2, 2, 2, 3, 3, 3, 4,
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4, 4, 5, 6, 6, 7, 8, 9,
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10, 11, 13, 14, 16, 18, 20, 23,
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25, 29, 32, 36, 40, 45, 51, 57,
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64, 72, 81, 91
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};
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static v4l2_std_id tw5864_get_v4l2_std(enum tw5864_vid_std std);
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static enum tw5864_vid_std tw5864_from_v4l2_std(v4l2_std_id v4l2_std);
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static void tw5864_handle_frame_task(struct tasklet_struct *t);
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static void tw5864_handle_frame(struct tw5864_h264_frame *frame);
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static void tw5864_frame_interval_set(struct tw5864_input *input);
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static int tw5864_queue_setup(struct vb2_queue *q, unsigned int *num_buffers,
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unsigned int *num_planes, unsigned int sizes[],
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struct device *alloc_ctxs[])
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{
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if (*num_planes)
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return sizes[0] < H264_VLC_BUF_SIZE ? -EINVAL : 0;
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sizes[0] = H264_VLC_BUF_SIZE;
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*num_planes = 1;
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return 0;
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}
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static void tw5864_buf_queue(struct vb2_buffer *vb)
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{
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struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
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struct vb2_queue *vq = vb->vb2_queue;
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struct tw5864_input *dev = vb2_get_drv_priv(vq);
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struct tw5864_buf *buf = container_of(vbuf, struct tw5864_buf, vb);
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unsigned long flags;
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spin_lock_irqsave(&dev->slock, flags);
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list_add_tail(&buf->list, &dev->active);
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spin_unlock_irqrestore(&dev->slock, flags);
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}
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static int tw5864_input_std_get(struct tw5864_input *input,
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enum tw5864_vid_std *std)
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{
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struct tw5864_dev *dev = input->root;
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u8 std_reg = tw_indir_readb(TW5864_INDIR_VIN_E(input->nr));
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*std = (std_reg & 0x70) >> 4;
|
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if (std_reg & 0x80) {
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dev_dbg(&dev->pci->dev,
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"Video format detection is in progress, please wait\n");
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return -EAGAIN;
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}
|
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return 0;
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}
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static int tw5864_enable_input(struct tw5864_input *input)
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{
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struct tw5864_dev *dev = input->root;
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int nr = input->nr;
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unsigned long flags;
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int d1_width = 720;
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int d1_height;
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int frame_width_bus_value = 0;
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int frame_height_bus_value = 0;
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int reg_frame_bus = 0x1c;
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int fmt_reg_value = 0;
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int downscale_enabled = 0;
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dev_dbg(&dev->pci->dev, "Enabling channel %d\n", nr);
|
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input->frame_seqno = 0;
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input->frame_gop_seqno = 0;
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input->h264_idr_pic_id = 0;
|
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input->reg_dsp_qp = input->qp;
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input->reg_dsp_ref_mvp_lambda = lambda_lookup_table[input->qp];
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input->reg_dsp_i4x4_weight = intra4x4_lambda3[input->qp];
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input->reg_emu = TW5864_EMU_EN_LPF | TW5864_EMU_EN_BHOST
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| TW5864_EMU_EN_SEN | TW5864_EMU_EN_ME | TW5864_EMU_EN_DDR;
|
input->reg_dsp = nr /* channel id */
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| TW5864_DSP_CHROM_SW
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| ((0xa << 8) & TW5864_DSP_MB_DELAY)
|
;
|
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input->resolution = D1;
|
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d1_height = (input->std == STD_NTSC) ? 480 : 576;
|
|
input->width = d1_width;
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input->height = d1_height;
|
|
input->reg_interlacing = 0x4;
|
|
switch (input->resolution) {
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case D1:
|
frame_width_bus_value = 0x2cf;
|
frame_height_bus_value = input->height - 1;
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reg_frame_bus = 0x1c;
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fmt_reg_value = 0;
|
downscale_enabled = 0;
|
input->reg_dsp_codec |= TW5864_CIF_MAP_MD | TW5864_HD1_MAP_MD;
|
input->reg_emu |= TW5864_DSP_FRAME_TYPE_D1;
|
input->reg_interlacing = TW5864_DI_EN | TW5864_DSP_INTER_ST;
|
|
tw_setl(TW5864_FULL_HALF_FLAG, 1 << nr);
|
break;
|
case HD1:
|
input->height /= 2;
|
input->width /= 2;
|
frame_width_bus_value = 0x2cf;
|
frame_height_bus_value = input->height * 2 - 1;
|
reg_frame_bus = 0x1c;
|
fmt_reg_value = 0;
|
downscale_enabled = 0;
|
input->reg_dsp_codec |= TW5864_HD1_MAP_MD;
|
input->reg_emu |= TW5864_DSP_FRAME_TYPE_D1;
|
|
tw_clearl(TW5864_FULL_HALF_FLAG, 1 << nr);
|
|
break;
|
case CIF:
|
input->height /= 4;
|
input->width /= 2;
|
frame_width_bus_value = 0x15f;
|
frame_height_bus_value = input->height * 2 - 1;
|
reg_frame_bus = 0x07;
|
fmt_reg_value = 1;
|
downscale_enabled = 1;
|
input->reg_dsp_codec |= TW5864_CIF_MAP_MD;
|
|
tw_clearl(TW5864_FULL_HALF_FLAG, 1 << nr);
|
break;
|
case QCIF:
|
input->height /= 4;
|
input->width /= 4;
|
frame_width_bus_value = 0x15f;
|
frame_height_bus_value = input->height * 2 - 1;
|
reg_frame_bus = 0x07;
|
fmt_reg_value = 1;
|
downscale_enabled = 1;
|
input->reg_dsp_codec |= TW5864_CIF_MAP_MD;
|
|
tw_clearl(TW5864_FULL_HALF_FLAG, 1 << nr);
|
break;
|
}
|
|
/* analog input width / 4 */
|
tw_indir_writeb(TW5864_INDIR_IN_PIC_WIDTH(nr), d1_width / 4);
|
tw_indir_writeb(TW5864_INDIR_IN_PIC_HEIGHT(nr), d1_height / 4);
|
|
/* output width / 4 */
|
tw_indir_writeb(TW5864_INDIR_OUT_PIC_WIDTH(nr), input->width / 4);
|
tw_indir_writeb(TW5864_INDIR_OUT_PIC_HEIGHT(nr), input->height / 4);
|
|
/*
|
* Crop width from 720 to 704.
|
* Above register settings need value 720 involved.
|
*/
|
input->width = 704;
|
tw_indir_writeb(TW5864_INDIR_CROP_ETC,
|
tw_indir_readb(TW5864_INDIR_CROP_ETC) |
|
TW5864_INDIR_CROP_ETC_CROP_EN);
|
|
tw_writel(TW5864_DSP_PIC_MAX_MB,
|
((input->width / 16) << 8) | (input->height / 16));
|
|
tw_writel(TW5864_FRAME_WIDTH_BUS_A(nr),
|
frame_width_bus_value);
|
tw_writel(TW5864_FRAME_WIDTH_BUS_B(nr),
|
frame_width_bus_value);
|
tw_writel(TW5864_FRAME_HEIGHT_BUS_A(nr),
|
frame_height_bus_value);
|
tw_writel(TW5864_FRAME_HEIGHT_BUS_B(nr),
|
(frame_height_bus_value + 1) / 2 - 1);
|
|
tw5864_frame_interval_set(input);
|
|
if (downscale_enabled)
|
tw_setl(TW5864_H264EN_CH_DNS, 1 << nr);
|
|
tw_mask_shift_writel(TW5864_H264EN_CH_FMT_REG1, 0x3, 2 * nr,
|
fmt_reg_value);
|
|
tw_mask_shift_writel((nr < 2
|
? TW5864_H264EN_RATE_MAX_LINE_REG1
|
: TW5864_H264EN_RATE_MAX_LINE_REG2),
|
0x1f, 5 * (nr % 2),
|
input->std == STD_NTSC ? 29 : 24);
|
|
tw_mask_shift_writel((nr < 2) ? TW5864_FRAME_BUS1 :
|
TW5864_FRAME_BUS2, 0xff, (nr % 2) * 8,
|
reg_frame_bus);
|
|
spin_lock_irqsave(&dev->slock, flags);
|
input->enabled = 1;
|
spin_unlock_irqrestore(&dev->slock, flags);
|
|
return 0;
|
}
|
|
void tw5864_request_encoded_frame(struct tw5864_input *input)
|
{
|
struct tw5864_dev *dev = input->root;
|
u32 enc_buf_id_new;
|
|
tw_setl(TW5864_DSP_CODEC, TW5864_CIF_MAP_MD | TW5864_HD1_MAP_MD);
|
tw_writel(TW5864_EMU, input->reg_emu);
|
tw_writel(TW5864_INTERLACING, input->reg_interlacing);
|
tw_writel(TW5864_DSP, input->reg_dsp);
|
|
tw_writel(TW5864_DSP_QP, input->reg_dsp_qp);
|
tw_writel(TW5864_DSP_REF_MVP_LAMBDA, input->reg_dsp_ref_mvp_lambda);
|
tw_writel(TW5864_DSP_I4x4_WEIGHT, input->reg_dsp_i4x4_weight);
|
tw_mask_shift_writel(TW5864_DSP_INTRA_MODE, TW5864_DSP_INTRA_MODE_MASK,
|
TW5864_DSP_INTRA_MODE_SHIFT,
|
TW5864_DSP_INTRA_MODE_16x16);
|
|
if (input->frame_gop_seqno == 0) {
|
/* Produce I-frame */
|
tw_writel(TW5864_MOTION_SEARCH_ETC, TW5864_INTRA_EN);
|
input->h264_idr_pic_id++;
|
input->h264_idr_pic_id &= TW5864_DSP_REF_FRM;
|
} else {
|
/* Produce P-frame */
|
tw_writel(TW5864_MOTION_SEARCH_ETC, TW5864_INTRA_EN |
|
TW5864_ME_EN | BIT(5) /* SRCH_OPT default */);
|
}
|
tw5864_prepare_frame_headers(input);
|
tw_writel(TW5864_VLC,
|
TW5864_VLC_PCI_SEL |
|
((input->tail_nb_bits + 24) << TW5864_VLC_BIT_ALIGN_SHIFT) |
|
input->reg_dsp_qp);
|
|
enc_buf_id_new = tw_mask_shift_readl(TW5864_ENC_BUF_PTR_REC1, 0x3,
|
2 * input->nr);
|
tw_writel(TW5864_DSP_ENC_ORG_PTR_REG,
|
enc_buf_id_new << TW5864_DSP_ENC_ORG_PTR_SHIFT);
|
tw_writel(TW5864_DSP_ENC_REC,
|
enc_buf_id_new << 12 | ((enc_buf_id_new + 3) & 3));
|
|
tw_writel(TW5864_SLICE, TW5864_START_NSLICE);
|
tw_writel(TW5864_SLICE, 0);
|
}
|
|
static int tw5864_disable_input(struct tw5864_input *input)
|
{
|
struct tw5864_dev *dev = input->root;
|
unsigned long flags;
|
|
dev_dbg(&dev->pci->dev, "Disabling channel %d\n", input->nr);
|
|
spin_lock_irqsave(&dev->slock, flags);
|
input->enabled = 0;
|
spin_unlock_irqrestore(&dev->slock, flags);
|
return 0;
|
}
|
|
static int tw5864_start_streaming(struct vb2_queue *q, unsigned int count)
|
{
|
struct tw5864_input *input = vb2_get_drv_priv(q);
|
int ret;
|
|
ret = tw5864_enable_input(input);
|
if (!ret)
|
return 0;
|
|
while (!list_empty(&input->active)) {
|
struct tw5864_buf *buf = list_entry(input->active.next,
|
struct tw5864_buf, list);
|
|
list_del(&buf->list);
|
vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_QUEUED);
|
}
|
return ret;
|
}
|
|
static void tw5864_stop_streaming(struct vb2_queue *q)
|
{
|
unsigned long flags;
|
struct tw5864_input *input = vb2_get_drv_priv(q);
|
|
tw5864_disable_input(input);
|
|
spin_lock_irqsave(&input->slock, flags);
|
if (input->vb) {
|
vb2_buffer_done(&input->vb->vb.vb2_buf, VB2_BUF_STATE_ERROR);
|
input->vb = NULL;
|
}
|
while (!list_empty(&input->active)) {
|
struct tw5864_buf *buf = list_entry(input->active.next,
|
struct tw5864_buf, list);
|
|
list_del(&buf->list);
|
vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
|
}
|
spin_unlock_irqrestore(&input->slock, flags);
|
}
|
|
static const struct vb2_ops tw5864_video_qops = {
|
.queue_setup = tw5864_queue_setup,
|
.buf_queue = tw5864_buf_queue,
|
.start_streaming = tw5864_start_streaming,
|
.stop_streaming = tw5864_stop_streaming,
|
.wait_prepare = vb2_ops_wait_prepare,
|
.wait_finish = vb2_ops_wait_finish,
|
};
|
|
static int tw5864_s_ctrl(struct v4l2_ctrl *ctrl)
|
{
|
struct tw5864_input *input =
|
container_of(ctrl->handler, struct tw5864_input, hdl);
|
struct tw5864_dev *dev = input->root;
|
unsigned long flags;
|
|
switch (ctrl->id) {
|
case V4L2_CID_BRIGHTNESS:
|
tw_indir_writeb(TW5864_INDIR_VIN_A_BRIGHT(input->nr),
|
(u8)ctrl->val);
|
break;
|
case V4L2_CID_HUE:
|
tw_indir_writeb(TW5864_INDIR_VIN_7_HUE(input->nr),
|
(u8)ctrl->val);
|
break;
|
case V4L2_CID_CONTRAST:
|
tw_indir_writeb(TW5864_INDIR_VIN_9_CNTRST(input->nr),
|
(u8)ctrl->val);
|
break;
|
case V4L2_CID_SATURATION:
|
tw_indir_writeb(TW5864_INDIR_VIN_B_SAT_U(input->nr),
|
(u8)ctrl->val);
|
tw_indir_writeb(TW5864_INDIR_VIN_C_SAT_V(input->nr),
|
(u8)ctrl->val);
|
break;
|
case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
|
input->gop = ctrl->val;
|
return 0;
|
case V4L2_CID_MPEG_VIDEO_H264_MIN_QP:
|
spin_lock_irqsave(&input->slock, flags);
|
input->qp = ctrl->val;
|
input->reg_dsp_qp = input->qp;
|
input->reg_dsp_ref_mvp_lambda = lambda_lookup_table[input->qp];
|
input->reg_dsp_i4x4_weight = intra4x4_lambda3[input->qp];
|
spin_unlock_irqrestore(&input->slock, flags);
|
return 0;
|
case V4L2_CID_DETECT_MD_GLOBAL_THRESHOLD:
|
memset(input->md_threshold_grid_values, ctrl->val,
|
sizeof(input->md_threshold_grid_values));
|
return 0;
|
case V4L2_CID_DETECT_MD_MODE:
|
return 0;
|
case V4L2_CID_DETECT_MD_THRESHOLD_GRID:
|
/* input->md_threshold_grid_ctrl->p_new.p_u16 contains data */
|
memcpy(input->md_threshold_grid_values,
|
input->md_threshold_grid_ctrl->p_new.p_u16,
|
sizeof(input->md_threshold_grid_values));
|
return 0;
|
}
|
return 0;
|
}
|
|
static int tw5864_fmt_vid_cap(struct file *file, void *priv,
|
struct v4l2_format *f)
|
{
|
struct tw5864_input *input = video_drvdata(file);
|
|
f->fmt.pix.width = 704;
|
switch (input->std) {
|
default:
|
WARN_ON_ONCE(1);
|
return -EINVAL;
|
case STD_NTSC:
|
f->fmt.pix.height = 480;
|
break;
|
case STD_PAL:
|
case STD_SECAM:
|
f->fmt.pix.height = 576;
|
break;
|
}
|
f->fmt.pix.field = V4L2_FIELD_INTERLACED;
|
f->fmt.pix.pixelformat = V4L2_PIX_FMT_H264;
|
f->fmt.pix.sizeimage = H264_VLC_BUF_SIZE;
|
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
|
return 0;
|
}
|
|
static int tw5864_enum_input(struct file *file, void *priv,
|
struct v4l2_input *i)
|
{
|
struct tw5864_input *input = video_drvdata(file);
|
struct tw5864_dev *dev = input->root;
|
|
u8 indir_0x000 = tw_indir_readb(TW5864_INDIR_VIN_0(input->nr));
|
u8 indir_0x00d = tw_indir_readb(TW5864_INDIR_VIN_D(input->nr));
|
u8 v1 = indir_0x000;
|
u8 v2 = indir_0x00d;
|
|
if (i->index)
|
return -EINVAL;
|
|
i->type = V4L2_INPUT_TYPE_CAMERA;
|
snprintf(i->name, sizeof(i->name), "Encoder %d", input->nr);
|
i->std = TW5864_NORMS;
|
if (v1 & (1 << 7))
|
i->status |= V4L2_IN_ST_NO_SYNC;
|
if (!(v1 & (1 << 6)))
|
i->status |= V4L2_IN_ST_NO_H_LOCK;
|
if (v1 & (1 << 2))
|
i->status |= V4L2_IN_ST_NO_SIGNAL;
|
if (v1 & (1 << 1))
|
i->status |= V4L2_IN_ST_NO_COLOR;
|
if (v2 & (1 << 2))
|
i->status |= V4L2_IN_ST_MACROVISION;
|
|
return 0;
|
}
|
|
static int tw5864_g_input(struct file *file, void *priv, unsigned int *i)
|
{
|
*i = 0;
|
return 0;
|
}
|
|
static int tw5864_s_input(struct file *file, void *priv, unsigned int i)
|
{
|
if (i)
|
return -EINVAL;
|
return 0;
|
}
|
|
static int tw5864_querycap(struct file *file, void *priv,
|
struct v4l2_capability *cap)
|
{
|
struct tw5864_input *input = video_drvdata(file);
|
|
strscpy(cap->driver, "tw5864", sizeof(cap->driver));
|
snprintf(cap->card, sizeof(cap->card), "TW5864 Encoder %d",
|
input->nr);
|
sprintf(cap->bus_info, "PCI:%s", pci_name(input->root->pci));
|
return 0;
|
}
|
|
static int tw5864_querystd(struct file *file, void *priv, v4l2_std_id *std)
|
{
|
struct tw5864_input *input = video_drvdata(file);
|
enum tw5864_vid_std tw_std;
|
int ret;
|
|
ret = tw5864_input_std_get(input, &tw_std);
|
if (ret)
|
return ret;
|
*std = tw5864_get_v4l2_std(tw_std);
|
|
return 0;
|
}
|
|
static int tw5864_g_std(struct file *file, void *priv, v4l2_std_id *std)
|
{
|
struct tw5864_input *input = video_drvdata(file);
|
|
*std = input->v4l2_std;
|
return 0;
|
}
|
|
static int tw5864_s_std(struct file *file, void *priv, v4l2_std_id std)
|
{
|
struct tw5864_input *input = video_drvdata(file);
|
struct tw5864_dev *dev = input->root;
|
|
input->v4l2_std = std;
|
input->std = tw5864_from_v4l2_std(std);
|
tw_indir_writeb(TW5864_INDIR_VIN_E(input->nr), input->std);
|
return 0;
|
}
|
|
static int tw5864_enum_fmt_vid_cap(struct file *file, void *priv,
|
struct v4l2_fmtdesc *f)
|
{
|
if (f->index)
|
return -EINVAL;
|
|
f->pixelformat = V4L2_PIX_FMT_H264;
|
|
return 0;
|
}
|
|
static int tw5864_subscribe_event(struct v4l2_fh *fh,
|
const struct v4l2_event_subscription *sub)
|
{
|
switch (sub->type) {
|
case V4L2_EVENT_MOTION_DET:
|
/*
|
* Allow for up to 30 events (1 second for NTSC) to be stored.
|
*/
|
return v4l2_event_subscribe(fh, sub, 30, NULL);
|
default:
|
return v4l2_ctrl_subscribe_event(fh, sub);
|
}
|
}
|
|
static void tw5864_frame_interval_set(struct tw5864_input *input)
|
{
|
/*
|
* This register value seems to follow such approach: In each second
|
* interval, when processing Nth frame, it checks Nth bit of register
|
* value and, if the bit is 1, it processes the frame, otherwise the
|
* frame is discarded.
|
* So unary representation would work, but more or less equal gaps
|
* between the frames should be preserved.
|
*
|
* For 1 FPS - 0x00000001
|
* 00000000 00000000 00000000 00000001
|
*
|
* For max FPS - set all 25/30 lower bits:
|
* 00111111 11111111 11111111 11111111 (NTSC)
|
* 00000001 11111111 11111111 11111111 (PAL)
|
*
|
* For half of max FPS - use such pattern:
|
* 00010101 01010101 01010101 01010101 (NTSC)
|
* 00000001 01010101 01010101 01010101 (PAL)
|
*
|
* Et cetera.
|
*
|
* The value supplied to hardware is capped by mask of 25/30 lower bits.
|
*/
|
struct tw5864_dev *dev = input->root;
|
u32 unary_framerate = 0;
|
int shift = 0;
|
int std_max_fps = input->std == STD_NTSC ? 30 : 25;
|
|
for (shift = 0; shift < std_max_fps; shift += input->frame_interval)
|
unary_framerate |= 0x00000001 << shift;
|
|
tw_writel(TW5864_H264EN_RATE_CNTL_LO_WORD(input->nr, 0),
|
unary_framerate >> 16);
|
tw_writel(TW5864_H264EN_RATE_CNTL_HI_WORD(input->nr, 0),
|
unary_framerate & 0xffff);
|
}
|
|
static int tw5864_frameinterval_get(struct tw5864_input *input,
|
struct v4l2_fract *frameinterval)
|
{
|
struct tw5864_dev *dev = input->root;
|
|
switch (input->std) {
|
case STD_NTSC:
|
frameinterval->numerator = 1001;
|
frameinterval->denominator = 30000;
|
break;
|
case STD_PAL:
|
case STD_SECAM:
|
frameinterval->numerator = 1;
|
frameinterval->denominator = 25;
|
break;
|
default:
|
dev_warn(&dev->pci->dev, "tw5864_frameinterval_get requested for unknown std %d\n",
|
input->std);
|
return -EINVAL;
|
}
|
|
return 0;
|
}
|
|
static int tw5864_enum_framesizes(struct file *file, void *priv,
|
struct v4l2_frmsizeenum *fsize)
|
{
|
struct tw5864_input *input = video_drvdata(file);
|
|
if (fsize->index > 0)
|
return -EINVAL;
|
if (fsize->pixel_format != V4L2_PIX_FMT_H264)
|
return -EINVAL;
|
|
fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
|
fsize->discrete.width = 704;
|
fsize->discrete.height = input->std == STD_NTSC ? 480 : 576;
|
|
return 0;
|
}
|
|
static int tw5864_enum_frameintervals(struct file *file, void *priv,
|
struct v4l2_frmivalenum *fintv)
|
{
|
struct tw5864_input *input = video_drvdata(file);
|
struct v4l2_fract frameinterval;
|
int std_max_fps = input->std == STD_NTSC ? 30 : 25;
|
struct v4l2_frmsizeenum fsize = { .index = fintv->index,
|
.pixel_format = fintv->pixel_format };
|
int ret;
|
|
ret = tw5864_enum_framesizes(file, priv, &fsize);
|
if (ret)
|
return ret;
|
|
if (fintv->width != fsize.discrete.width ||
|
fintv->height != fsize.discrete.height)
|
return -EINVAL;
|
|
fintv->type = V4L2_FRMIVAL_TYPE_STEPWISE;
|
|
ret = tw5864_frameinterval_get(input, &frameinterval);
|
if (ret)
|
return ret;
|
|
fintv->stepwise.step = frameinterval;
|
fintv->stepwise.min = frameinterval;
|
fintv->stepwise.max = frameinterval;
|
fintv->stepwise.max.numerator *= std_max_fps;
|
|
return ret;
|
}
|
|
static int tw5864_g_parm(struct file *file, void *priv,
|
struct v4l2_streamparm *sp)
|
{
|
struct tw5864_input *input = video_drvdata(file);
|
struct v4l2_captureparm *cp = &sp->parm.capture;
|
int ret;
|
|
cp->capability = V4L2_CAP_TIMEPERFRAME;
|
|
ret = tw5864_frameinterval_get(input, &cp->timeperframe);
|
if (ret)
|
return ret;
|
|
cp->timeperframe.numerator *= input->frame_interval;
|
cp->capturemode = 0;
|
cp->readbuffers = 2;
|
|
return ret;
|
}
|
|
static int tw5864_s_parm(struct file *file, void *priv,
|
struct v4l2_streamparm *sp)
|
{
|
struct tw5864_input *input = video_drvdata(file);
|
struct v4l2_fract *t = &sp->parm.capture.timeperframe;
|
struct v4l2_fract time_base;
|
int ret;
|
|
ret = tw5864_frameinterval_get(input, &time_base);
|
if (ret)
|
return ret;
|
|
if (!t->numerator || !t->denominator) {
|
t->numerator = time_base.numerator * input->frame_interval;
|
t->denominator = time_base.denominator;
|
} else if (t->denominator != time_base.denominator) {
|
t->numerator = t->numerator * time_base.denominator /
|
t->denominator;
|
t->denominator = time_base.denominator;
|
}
|
|
input->frame_interval = t->numerator / time_base.numerator;
|
if (input->frame_interval < 1)
|
input->frame_interval = 1;
|
tw5864_frame_interval_set(input);
|
return tw5864_g_parm(file, priv, sp);
|
}
|
|
static const struct v4l2_ctrl_ops tw5864_ctrl_ops = {
|
.s_ctrl = tw5864_s_ctrl,
|
};
|
|
static const struct v4l2_file_operations video_fops = {
|
.owner = THIS_MODULE,
|
.open = v4l2_fh_open,
|
.release = vb2_fop_release,
|
.read = vb2_fop_read,
|
.poll = vb2_fop_poll,
|
.mmap = vb2_fop_mmap,
|
.unlocked_ioctl = video_ioctl2,
|
};
|
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
|
#define INDIR_SPACE_MAP_SHIFT 0x100000
|
|
static int tw5864_g_reg(struct file *file, void *fh,
|
struct v4l2_dbg_register *reg)
|
{
|
struct tw5864_input *input = video_drvdata(file);
|
struct tw5864_dev *dev = input->root;
|
|
if (reg->reg < INDIR_SPACE_MAP_SHIFT) {
|
if (reg->reg > 0x87fff)
|
return -EINVAL;
|
reg->size = 4;
|
reg->val = tw_readl(reg->reg);
|
} else {
|
__u64 indir_addr = reg->reg - INDIR_SPACE_MAP_SHIFT;
|
|
if (indir_addr > 0xefe)
|
return -EINVAL;
|
reg->size = 1;
|
reg->val = tw_indir_readb(reg->reg);
|
}
|
return 0;
|
}
|
|
static int tw5864_s_reg(struct file *file, void *fh,
|
const struct v4l2_dbg_register *reg)
|
{
|
struct tw5864_input *input = video_drvdata(file);
|
struct tw5864_dev *dev = input->root;
|
|
if (reg->reg < INDIR_SPACE_MAP_SHIFT) {
|
if (reg->reg > 0x87fff)
|
return -EINVAL;
|
tw_writel(reg->reg, reg->val);
|
} else {
|
__u64 indir_addr = reg->reg - INDIR_SPACE_MAP_SHIFT;
|
|
if (indir_addr > 0xefe)
|
return -EINVAL;
|
tw_indir_writeb(reg->reg, reg->val);
|
}
|
return 0;
|
}
|
#endif
|
|
static const struct v4l2_ioctl_ops video_ioctl_ops = {
|
.vidioc_querycap = tw5864_querycap,
|
.vidioc_enum_fmt_vid_cap = tw5864_enum_fmt_vid_cap,
|
.vidioc_reqbufs = vb2_ioctl_reqbufs,
|
.vidioc_create_bufs = vb2_ioctl_create_bufs,
|
.vidioc_querybuf = vb2_ioctl_querybuf,
|
.vidioc_qbuf = vb2_ioctl_qbuf,
|
.vidioc_dqbuf = vb2_ioctl_dqbuf,
|
.vidioc_expbuf = vb2_ioctl_expbuf,
|
.vidioc_querystd = tw5864_querystd,
|
.vidioc_s_std = tw5864_s_std,
|
.vidioc_g_std = tw5864_g_std,
|
.vidioc_enum_input = tw5864_enum_input,
|
.vidioc_g_input = tw5864_g_input,
|
.vidioc_s_input = tw5864_s_input,
|
.vidioc_streamon = vb2_ioctl_streamon,
|
.vidioc_streamoff = vb2_ioctl_streamoff,
|
.vidioc_try_fmt_vid_cap = tw5864_fmt_vid_cap,
|
.vidioc_s_fmt_vid_cap = tw5864_fmt_vid_cap,
|
.vidioc_g_fmt_vid_cap = tw5864_fmt_vid_cap,
|
.vidioc_log_status = v4l2_ctrl_log_status,
|
.vidioc_subscribe_event = tw5864_subscribe_event,
|
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
|
.vidioc_enum_framesizes = tw5864_enum_framesizes,
|
.vidioc_enum_frameintervals = tw5864_enum_frameintervals,
|
.vidioc_s_parm = tw5864_s_parm,
|
.vidioc_g_parm = tw5864_g_parm,
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
.vidioc_g_register = tw5864_g_reg,
|
.vidioc_s_register = tw5864_s_reg,
|
#endif
|
};
|
|
static const struct video_device tw5864_video_template = {
|
.name = "tw5864_video",
|
.fops = &video_fops,
|
.ioctl_ops = &video_ioctl_ops,
|
.release = video_device_release_empty,
|
.tvnorms = TW5864_NORMS,
|
.device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE |
|
V4L2_CAP_STREAMING,
|
};
|
|
/* Motion Detection Threshold matrix */
|
static const struct v4l2_ctrl_config tw5864_md_thresholds = {
|
.ops = &tw5864_ctrl_ops,
|
.id = V4L2_CID_DETECT_MD_THRESHOLD_GRID,
|
.dims = {MD_CELLS_HOR, MD_CELLS_VERT},
|
.def = 14,
|
/* See tw5864_md_metric_from_mvd() */
|
.max = 2 * 0x0f,
|
.step = 1,
|
};
|
|
static int tw5864_video_input_init(struct tw5864_input *dev, int video_nr);
|
static void tw5864_video_input_fini(struct tw5864_input *dev);
|
static void tw5864_encoder_tables_upload(struct tw5864_dev *dev);
|
|
int tw5864_video_init(struct tw5864_dev *dev, int *video_nr)
|
{
|
int i;
|
int ret;
|
unsigned long flags;
|
int last_dma_allocated = -1;
|
int last_input_nr_registered = -1;
|
|
for (i = 0; i < H264_BUF_CNT; i++) {
|
struct tw5864_h264_frame *frame = &dev->h264_buf[i];
|
|
frame->vlc.addr = dma_alloc_coherent(&dev->pci->dev,
|
H264_VLC_BUF_SIZE,
|
&frame->vlc.dma_addr,
|
GFP_KERNEL | GFP_DMA32);
|
if (!frame->vlc.addr) {
|
dev_err(&dev->pci->dev, "dma alloc fail\n");
|
ret = -ENOMEM;
|
goto free_dma;
|
}
|
frame->mv.addr = dma_alloc_coherent(&dev->pci->dev,
|
H264_MV_BUF_SIZE,
|
&frame->mv.dma_addr,
|
GFP_KERNEL | GFP_DMA32);
|
if (!frame->mv.addr) {
|
dev_err(&dev->pci->dev, "dma alloc fail\n");
|
ret = -ENOMEM;
|
dma_free_coherent(&dev->pci->dev, H264_VLC_BUF_SIZE,
|
frame->vlc.addr, frame->vlc.dma_addr);
|
goto free_dma;
|
}
|
last_dma_allocated = i;
|
}
|
|
tw5864_encoder_tables_upload(dev);
|
|
/* Picture is distorted without this block */
|
/* use falling edge to sample 54M to 108M */
|
tw_indir_writeb(TW5864_INDIR_VD_108_POL, TW5864_INDIR_VD_108_POL_BOTH);
|
tw_indir_writeb(TW5864_INDIR_CLK0_SEL, 0x00);
|
|
tw_indir_writeb(TW5864_INDIR_DDRA_DLL_DQS_SEL0, 0x02);
|
tw_indir_writeb(TW5864_INDIR_DDRA_DLL_DQS_SEL1, 0x02);
|
tw_indir_writeb(TW5864_INDIR_DDRA_DLL_CLK90_SEL, 0x02);
|
tw_indir_writeb(TW5864_INDIR_DDRB_DLL_DQS_SEL0, 0x02);
|
tw_indir_writeb(TW5864_INDIR_DDRB_DLL_DQS_SEL1, 0x02);
|
tw_indir_writeb(TW5864_INDIR_DDRB_DLL_CLK90_SEL, 0x02);
|
|
/* video input reset */
|
tw_indir_writeb(TW5864_INDIR_RESET, 0);
|
tw_indir_writeb(TW5864_INDIR_RESET, TW5864_INDIR_RESET_VD |
|
TW5864_INDIR_RESET_DLL | TW5864_INDIR_RESET_MUX_CORE);
|
msleep(20);
|
|
/*
|
* Select Part A mode for all channels.
|
* tw_setl instead of tw_clearl for Part B mode.
|
*
|
* I guess "Part B" is primarily for downscaled version of same channel
|
* which goes in Part A of same bus
|
*/
|
tw_writel(TW5864_FULL_HALF_MODE_SEL, 0);
|
|
tw_indir_writeb(TW5864_INDIR_PV_VD_CK_POL,
|
TW5864_INDIR_PV_VD_CK_POL_VD(0) |
|
TW5864_INDIR_PV_VD_CK_POL_VD(1) |
|
TW5864_INDIR_PV_VD_CK_POL_VD(2) |
|
TW5864_INDIR_PV_VD_CK_POL_VD(3));
|
|
spin_lock_irqsave(&dev->slock, flags);
|
dev->encoder_busy = 0;
|
dev->h264_buf_r_index = 0;
|
dev->h264_buf_w_index = 0;
|
tw_writel(TW5864_VLC_STREAM_BASE_ADDR,
|
dev->h264_buf[dev->h264_buf_w_index].vlc.dma_addr);
|
tw_writel(TW5864_MV_STREAM_BASE_ADDR,
|
dev->h264_buf[dev->h264_buf_w_index].mv.dma_addr);
|
spin_unlock_irqrestore(&dev->slock, flags);
|
|
tw_writel(TW5864_SEN_EN_CH, 0x000f);
|
tw_writel(TW5864_H264EN_CH_EN, 0x000f);
|
|
tw_writel(TW5864_H264EN_BUS0_MAP, 0x00000000);
|
tw_writel(TW5864_H264EN_BUS1_MAP, 0x00001111);
|
tw_writel(TW5864_H264EN_BUS2_MAP, 0x00002222);
|
tw_writel(TW5864_H264EN_BUS3_MAP, 0x00003333);
|
|
/*
|
* Quote from Intersil (manufacturer):
|
* 0x0038 is managed by HW, and by default it won't pass the pointer set
|
* at 0x0010. So if you don't do encoding, 0x0038 should stay at '3'
|
* (with 4 frames in buffer). If you encode one frame and then move
|
* 0x0010 to '1' for example, HW will take one more frame and set it to
|
* buffer #0, and then you should see 0x0038 is set to '0'. There is
|
* only one HW encoder engine, so 4 channels cannot get encoded
|
* simultaneously. But each channel does have its own buffer (for
|
* original frames and reconstructed frames). So there is no problem to
|
* manage encoding for 4 channels at same time and no need to force
|
* I-frames in switching channels.
|
* End of quote.
|
*
|
* If we set 0x0010 (TW5864_ENC_BUF_PTR_REC1) to 0 (for any channel), we
|
* have no "rolling" (until we change this value).
|
* If we set 0x0010 (TW5864_ENC_BUF_PTR_REC1) to 0x3, it starts to roll
|
* continuously together with 0x0038.
|
*/
|
tw_writel(TW5864_ENC_BUF_PTR_REC1, 0x00ff);
|
tw_writel(TW5864_PCI_INTTM_SCALE, 0);
|
|
tw_writel(TW5864_INTERLACING, TW5864_DI_EN);
|
tw_writel(TW5864_MASTER_ENB_REG, TW5864_PCI_VLC_INTR_ENB);
|
tw_writel(TW5864_PCI_INTR_CTL,
|
TW5864_TIMER_INTR_ENB | TW5864_PCI_MAST_ENB |
|
TW5864_MVD_VLC_MAST_ENB);
|
|
dev->irqmask |= TW5864_INTR_VLC_DONE | TW5864_INTR_TIMER;
|
tw5864_irqmask_apply(dev);
|
|
tasklet_setup(&dev->tasklet, tw5864_handle_frame_task);
|
|
for (i = 0; i < TW5864_INPUTS; i++) {
|
dev->inputs[i].root = dev;
|
dev->inputs[i].nr = i;
|
ret = tw5864_video_input_init(&dev->inputs[i], video_nr[i]);
|
if (ret)
|
goto fini_video_inputs;
|
last_input_nr_registered = i;
|
}
|
|
return 0;
|
|
fini_video_inputs:
|
for (i = last_input_nr_registered; i >= 0; i--)
|
tw5864_video_input_fini(&dev->inputs[i]);
|
|
tasklet_kill(&dev->tasklet);
|
|
free_dma:
|
for (i = last_dma_allocated; i >= 0; i--) {
|
dma_free_coherent(&dev->pci->dev, H264_VLC_BUF_SIZE,
|
dev->h264_buf[i].vlc.addr,
|
dev->h264_buf[i].vlc.dma_addr);
|
dma_free_coherent(&dev->pci->dev, H264_MV_BUF_SIZE,
|
dev->h264_buf[i].mv.addr,
|
dev->h264_buf[i].mv.dma_addr);
|
}
|
|
return ret;
|
}
|
|
static int tw5864_video_input_init(struct tw5864_input *input, int video_nr)
|
{
|
struct tw5864_dev *dev = input->root;
|
int ret;
|
struct v4l2_ctrl_handler *hdl = &input->hdl;
|
|
mutex_init(&input->lock);
|
spin_lock_init(&input->slock);
|
|
/* setup video buffers queue */
|
INIT_LIST_HEAD(&input->active);
|
input->vidq.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
input->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
|
input->vidq.io_modes = VB2_MMAP | VB2_READ | VB2_DMABUF;
|
input->vidq.ops = &tw5864_video_qops;
|
input->vidq.mem_ops = &vb2_dma_contig_memops;
|
input->vidq.drv_priv = input;
|
input->vidq.gfp_flags = 0;
|
input->vidq.buf_struct_size = sizeof(struct tw5864_buf);
|
input->vidq.lock = &input->lock;
|
input->vidq.min_buffers_needed = 2;
|
input->vidq.dev = &input->root->pci->dev;
|
ret = vb2_queue_init(&input->vidq);
|
if (ret)
|
goto free_mutex;
|
|
input->vdev = tw5864_video_template;
|
input->vdev.v4l2_dev = &input->root->v4l2_dev;
|
input->vdev.lock = &input->lock;
|
input->vdev.queue = &input->vidq;
|
video_set_drvdata(&input->vdev, input);
|
|
/* Initialize the device control structures */
|
v4l2_ctrl_handler_init(hdl, 6);
|
v4l2_ctrl_new_std(hdl, &tw5864_ctrl_ops,
|
V4L2_CID_BRIGHTNESS, -128, 127, 1, 0);
|
v4l2_ctrl_new_std(hdl, &tw5864_ctrl_ops,
|
V4L2_CID_CONTRAST, 0, 255, 1, 100);
|
v4l2_ctrl_new_std(hdl, &tw5864_ctrl_ops,
|
V4L2_CID_SATURATION, 0, 255, 1, 128);
|
v4l2_ctrl_new_std(hdl, &tw5864_ctrl_ops, V4L2_CID_HUE, -128, 127, 1, 0);
|
v4l2_ctrl_new_std(hdl, &tw5864_ctrl_ops, V4L2_CID_MPEG_VIDEO_GOP_SIZE,
|
1, MAX_GOP_SIZE, 1, GOP_SIZE);
|
v4l2_ctrl_new_std(hdl, &tw5864_ctrl_ops,
|
V4L2_CID_MPEG_VIDEO_H264_MIN_QP, 28, 51, 1, QP_VALUE);
|
v4l2_ctrl_new_std_menu(hdl, &tw5864_ctrl_ops,
|
V4L2_CID_DETECT_MD_MODE,
|
V4L2_DETECT_MD_MODE_THRESHOLD_GRID, 0,
|
V4L2_DETECT_MD_MODE_DISABLED);
|
v4l2_ctrl_new_std(hdl, &tw5864_ctrl_ops,
|
V4L2_CID_DETECT_MD_GLOBAL_THRESHOLD,
|
tw5864_md_thresholds.min, tw5864_md_thresholds.max,
|
tw5864_md_thresholds.step, tw5864_md_thresholds.def);
|
input->md_threshold_grid_ctrl =
|
v4l2_ctrl_new_custom(hdl, &tw5864_md_thresholds, NULL);
|
if (hdl->error) {
|
ret = hdl->error;
|
goto free_v4l2_hdl;
|
}
|
input->vdev.ctrl_handler = hdl;
|
v4l2_ctrl_handler_setup(hdl);
|
|
input->qp = QP_VALUE;
|
input->gop = GOP_SIZE;
|
input->frame_interval = 1;
|
|
ret = video_register_device(&input->vdev, VFL_TYPE_VIDEO, video_nr);
|
if (ret)
|
goto free_v4l2_hdl;
|
|
dev_info(&input->root->pci->dev, "Registered video device %s\n",
|
video_device_node_name(&input->vdev));
|
|
/*
|
* Set default video standard. Doesn't matter which, the detected value
|
* will be found out by VIDIOC_QUERYSTD handler.
|
*/
|
input->v4l2_std = V4L2_STD_NTSC_M;
|
input->std = STD_NTSC;
|
|
tw_indir_writeb(TW5864_INDIR_VIN_E(video_nr), 0x07);
|
/* to initiate auto format recognition */
|
tw_indir_writeb(TW5864_INDIR_VIN_F(video_nr), 0xff);
|
|
return 0;
|
|
free_v4l2_hdl:
|
v4l2_ctrl_handler_free(hdl);
|
free_mutex:
|
mutex_destroy(&input->lock);
|
|
return ret;
|
}
|
|
static void tw5864_video_input_fini(struct tw5864_input *dev)
|
{
|
vb2_video_unregister_device(&dev->vdev);
|
v4l2_ctrl_handler_free(&dev->hdl);
|
}
|
|
void tw5864_video_fini(struct tw5864_dev *dev)
|
{
|
int i;
|
|
tasklet_kill(&dev->tasklet);
|
|
for (i = 0; i < TW5864_INPUTS; i++)
|
tw5864_video_input_fini(&dev->inputs[i]);
|
|
for (i = 0; i < H264_BUF_CNT; i++) {
|
dma_free_coherent(&dev->pci->dev, H264_VLC_BUF_SIZE,
|
dev->h264_buf[i].vlc.addr,
|
dev->h264_buf[i].vlc.dma_addr);
|
dma_free_coherent(&dev->pci->dev, H264_MV_BUF_SIZE,
|
dev->h264_buf[i].mv.addr,
|
dev->h264_buf[i].mv.dma_addr);
|
}
|
}
|
|
void tw5864_prepare_frame_headers(struct tw5864_input *input)
|
{
|
struct tw5864_buf *vb = input->vb;
|
u8 *dst;
|
size_t dst_space;
|
unsigned long flags;
|
|
if (!vb) {
|
spin_lock_irqsave(&input->slock, flags);
|
if (list_empty(&input->active)) {
|
spin_unlock_irqrestore(&input->slock, flags);
|
input->vb = NULL;
|
return;
|
}
|
vb = list_first_entry(&input->active, struct tw5864_buf, list);
|
list_del(&vb->list);
|
spin_unlock_irqrestore(&input->slock, flags);
|
}
|
|
dst = vb2_plane_vaddr(&vb->vb.vb2_buf, 0);
|
dst_space = vb2_plane_size(&vb->vb.vb2_buf, 0);
|
|
/*
|
* Low-level bitstream writing functions don't have a fine way to say
|
* correctly that supplied buffer is too small. So we just check there
|
* and warn, and don't care at lower level.
|
* Currently all headers take below 32 bytes.
|
* The buffer is supposed to have plenty of free space at this point,
|
* anyway.
|
*/
|
if (WARN_ON_ONCE(dst_space < 128))
|
return;
|
|
/*
|
* Generate H264 headers:
|
* If this is first frame, put SPS and PPS
|
*/
|
if (input->frame_gop_seqno == 0)
|
tw5864_h264_put_stream_header(&dst, &dst_space, input->qp,
|
input->width, input->height);
|
|
/* Put slice header */
|
tw5864_h264_put_slice_header(&dst, &dst_space, input->h264_idr_pic_id,
|
input->frame_gop_seqno,
|
&input->tail_nb_bits, &input->tail);
|
input->vb = vb;
|
input->buf_cur_ptr = dst;
|
input->buf_cur_space_left = dst_space;
|
}
|
|
/*
|
* Returns heuristic motion detection metric value from known components of
|
* hardware-provided Motion Vector Data.
|
*/
|
static unsigned int tw5864_md_metric_from_mvd(u32 mvd)
|
{
|
/*
|
* Format of motion vector data exposed by tw5864, according to
|
* manufacturer:
|
* mv_x 10 bits
|
* mv_y 10 bits
|
* non_zero_members 8 bits
|
* mb_type 3 bits
|
* reserved 1 bit
|
*
|
* non_zero_members: number of non-zero residuals in each macro block
|
* after quantization
|
*
|
* unsigned int reserved = mvd >> 31;
|
* unsigned int mb_type = (mvd >> 28) & 0x7;
|
* unsigned int non_zero_members = (mvd >> 20) & 0xff;
|
*/
|
unsigned int mv_y = (mvd >> 10) & 0x3ff;
|
unsigned int mv_x = mvd & 0x3ff;
|
|
/* heuristic: */
|
mv_x &= 0x0f;
|
mv_y &= 0x0f;
|
|
return mv_y + mv_x;
|
}
|
|
static int tw5864_is_motion_triggered(struct tw5864_h264_frame *frame)
|
{
|
struct tw5864_input *input = frame->input;
|
u32 *mv = (u32 *)frame->mv.addr;
|
int i;
|
int detected = 0;
|
|
for (i = 0; i < MD_CELLS; i++) {
|
const u16 thresh = input->md_threshold_grid_values[i];
|
const unsigned int metric = tw5864_md_metric_from_mvd(mv[i]);
|
|
if (metric > thresh)
|
detected = 1;
|
|
if (detected)
|
break;
|
}
|
return detected;
|
}
|
|
static void tw5864_handle_frame_task(struct tasklet_struct *t)
|
{
|
struct tw5864_dev *dev = from_tasklet(dev, t, tasklet);
|
unsigned long flags;
|
int batch_size = H264_BUF_CNT;
|
|
spin_lock_irqsave(&dev->slock, flags);
|
while (dev->h264_buf_r_index != dev->h264_buf_w_index && batch_size--) {
|
struct tw5864_h264_frame *frame =
|
&dev->h264_buf[dev->h264_buf_r_index];
|
|
spin_unlock_irqrestore(&dev->slock, flags);
|
dma_sync_single_for_cpu(&dev->pci->dev, frame->vlc.dma_addr,
|
H264_VLC_BUF_SIZE, DMA_FROM_DEVICE);
|
dma_sync_single_for_cpu(&dev->pci->dev, frame->mv.dma_addr,
|
H264_MV_BUF_SIZE, DMA_FROM_DEVICE);
|
tw5864_handle_frame(frame);
|
dma_sync_single_for_device(&dev->pci->dev, frame->vlc.dma_addr,
|
H264_VLC_BUF_SIZE, DMA_FROM_DEVICE);
|
dma_sync_single_for_device(&dev->pci->dev, frame->mv.dma_addr,
|
H264_MV_BUF_SIZE, DMA_FROM_DEVICE);
|
spin_lock_irqsave(&dev->slock, flags);
|
|
dev->h264_buf_r_index++;
|
dev->h264_buf_r_index %= H264_BUF_CNT;
|
}
|
spin_unlock_irqrestore(&dev->slock, flags);
|
}
|
|
#ifdef DEBUG
|
static u32 tw5864_vlc_checksum(u32 *data, int len)
|
{
|
u32 val, count_len = len;
|
|
val = *data++;
|
while (((count_len >> 2) - 1) > 0) {
|
val ^= *data++;
|
count_len -= 4;
|
}
|
val ^= htonl((len >> 2));
|
return val;
|
}
|
#endif
|
|
static void tw5864_handle_frame(struct tw5864_h264_frame *frame)
|
{
|
#define SKIP_VLCBUF_BYTES 3
|
struct tw5864_input *input = frame->input;
|
struct tw5864_dev *dev = input->root;
|
struct tw5864_buf *vb;
|
struct vb2_v4l2_buffer *v4l2_buf;
|
int frame_len = frame->vlc_len - SKIP_VLCBUF_BYTES;
|
u8 *dst = input->buf_cur_ptr;
|
u8 tail_mask, vlc_mask = 0;
|
int i;
|
u8 vlc_first_byte = ((u8 *)(frame->vlc.addr + SKIP_VLCBUF_BYTES))[0];
|
unsigned long flags;
|
int zero_run;
|
u8 *src;
|
u8 *src_end;
|
|
#ifdef DEBUG
|
if (frame->checksum !=
|
tw5864_vlc_checksum((u32 *)frame->vlc.addr, frame_len))
|
dev_err(&dev->pci->dev,
|
"Checksum of encoded frame doesn't match!\n");
|
#endif
|
|
spin_lock_irqsave(&input->slock, flags);
|
vb = input->vb;
|
input->vb = NULL;
|
spin_unlock_irqrestore(&input->slock, flags);
|
|
if (!vb) { /* Gone because of disabling */
|
dev_dbg(&dev->pci->dev, "vb is empty, dropping frame\n");
|
return;
|
}
|
|
v4l2_buf = to_vb2_v4l2_buffer(&vb->vb.vb2_buf);
|
|
/*
|
* Check for space.
|
* Mind the overhead of startcode emulation prevention.
|
*/
|
if (input->buf_cur_space_left < frame_len * 5 / 4) {
|
dev_err_once(&dev->pci->dev,
|
"Left space in vb2 buffer, %d bytes, is less than considered safely enough to put frame of length %d. Dropping this frame.\n",
|
input->buf_cur_space_left, frame_len);
|
return;
|
}
|
|
for (i = 0; i < 8 - input->tail_nb_bits; i++)
|
vlc_mask |= 1 << i;
|
tail_mask = (~vlc_mask) & 0xff;
|
|
dst[0] = (input->tail & tail_mask) | (vlc_first_byte & vlc_mask);
|
frame_len--;
|
dst++;
|
|
/* H.264 startcode emulation prevention */
|
src = frame->vlc.addr + SKIP_VLCBUF_BYTES + 1;
|
src_end = src + frame_len;
|
zero_run = 0;
|
for (; src < src_end; src++) {
|
if (zero_run < 2) {
|
if (*src == 0)
|
++zero_run;
|
else
|
zero_run = 0;
|
} else {
|
if ((*src & ~0x03) == 0)
|
*dst++ = 0x03;
|
zero_run = *src == 0;
|
}
|
*dst++ = *src;
|
}
|
|
vb2_set_plane_payload(&vb->vb.vb2_buf, 0,
|
dst - (u8 *)vb2_plane_vaddr(&vb->vb.vb2_buf, 0));
|
|
vb->vb.vb2_buf.timestamp = frame->timestamp;
|
v4l2_buf->field = V4L2_FIELD_INTERLACED;
|
v4l2_buf->sequence = frame->seqno;
|
|
/* Check for motion flags */
|
if (frame->gop_seqno /* P-frame */ &&
|
tw5864_is_motion_triggered(frame)) {
|
struct v4l2_event ev = {
|
.type = V4L2_EVENT_MOTION_DET,
|
.u.motion_det = {
|
.flags = V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ,
|
.frame_sequence = v4l2_buf->sequence,
|
},
|
};
|
|
v4l2_event_queue(&input->vdev, &ev);
|
}
|
|
vb2_buffer_done(&vb->vb.vb2_buf, VB2_BUF_STATE_DONE);
|
}
|
|
static v4l2_std_id tw5864_get_v4l2_std(enum tw5864_vid_std std)
|
{
|
switch (std) {
|
case STD_NTSC: return V4L2_STD_NTSC_M;
|
case STD_PAL: return V4L2_STD_PAL_B;
|
case STD_SECAM: return V4L2_STD_SECAM_B;
|
case STD_NTSC443: return V4L2_STD_NTSC_443;
|
case STD_PAL_M: return V4L2_STD_PAL_M;
|
case STD_PAL_CN: return V4L2_STD_PAL_Nc;
|
case STD_PAL_60: return V4L2_STD_PAL_60;
|
case STD_INVALID: return V4L2_STD_UNKNOWN;
|
}
|
return 0;
|
}
|
|
static enum tw5864_vid_std tw5864_from_v4l2_std(v4l2_std_id v4l2_std)
|
{
|
if (v4l2_std & V4L2_STD_NTSC_M)
|
return STD_NTSC;
|
if (v4l2_std & V4L2_STD_PAL_B)
|
return STD_PAL;
|
if (v4l2_std & V4L2_STD_SECAM_B)
|
return STD_SECAM;
|
if (v4l2_std & V4L2_STD_NTSC_443)
|
return STD_NTSC443;
|
if (v4l2_std & V4L2_STD_PAL_M)
|
return STD_PAL_M;
|
if (v4l2_std & V4L2_STD_PAL_Nc)
|
return STD_PAL_CN;
|
if (v4l2_std & V4L2_STD_PAL_60)
|
return STD_PAL_60;
|
|
return STD_INVALID;
|
}
|
|
static void tw5864_encoder_tables_upload(struct tw5864_dev *dev)
|
{
|
int i;
|
|
tw_writel(TW5864_VLC_RD, 0x1);
|
for (i = 0; i < VLC_LOOKUP_TABLE_LEN; i++) {
|
tw_writel((TW5864_VLC_STREAM_MEM_START + i * 4),
|
encoder_vlc_lookup_table[i]);
|
}
|
tw_writel(TW5864_VLC_RD, 0x0);
|
|
for (i = 0; i < QUANTIZATION_TABLE_LEN; i++) {
|
tw_writel((TW5864_QUAN_TAB + i * 4),
|
forward_quantization_table[i]);
|
}
|
|
for (i = 0; i < QUANTIZATION_TABLE_LEN; i++) {
|
tw_writel((TW5864_QUAN_TAB + i * 4),
|
inverse_quantization_table[i]);
|
}
|
}
|
