| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Andrey Utkin | 9352 | 99.33% | 4 | 26.67% |
| Allen Pais | 17 | 0.18% | 1 | 6.67% |
| Tom Rix | 14 | 0.15% | 1 | 6.67% |
| Gustavo Padovan | 8 | 0.08% | 1 | 6.67% |
| Dan Carpenter | 7 | 0.07% | 1 | 6.67% |
| Arnd Bergmann | 7 | 0.07% | 1 | 6.67% |
| Mauro Carvalho Chehab | 5 | 0.05% | 2 | 13.33% |
| Thomas Gleixner | 2 | 0.02% | 1 | 6.67% |
| Hans Verkuil | 2 | 0.02% | 2 | 13.33% |
| Benjamin Gaignard | 1 | 0.01% | 1 | 6.67% |
| Total | 9415 | 15 |
// SPDX-License-Identifier: GPL-2.0-or-later /* * TW5864 driver - video encoding functions * * Copyright (C) 2016 Bluecherry, LLC <maintainers@bluecherrydvr.com> */ #include <linux/module.h> #include <media/v4l2-common.h> #include <media/v4l2-event.h> #include <media/videobuf2-dma-contig.h> #include "tw5864.h" #include "tw5864-reg.h" #define QUANTIZATION_TABLE_LEN 96 #define VLC_LOOKUP_TABLE_LEN 1024 static const u16 forward_quantization_table[QUANTIZATION_TABLE_LEN] = { 0x3333, 0x1f82, 0x3333, 0x1f82, 0x1f82, 0x147b, 0x1f82, 0x147b, 0x3333, 0x1f82, 0x3333, 0x1f82, 0x1f82, 0x147b, 0x1f82, 0x147b, 0x2e8c, 0x1d42, 0x2e8c, 0x1d42, 0x1d42, 0x1234, 0x1d42, 0x1234, 0x2e8c, 0x1d42, 0x2e8c, 0x1d42, 0x1d42, 0x1234, 0x1d42, 0x1234, 0x2762, 0x199a, 0x2762, 0x199a, 0x199a, 0x1062, 0x199a, 0x1062, 0x2762, 0x199a, 0x2762, 0x199a, 0x199a, 0x1062, 0x199a, 0x1062, 0x2492, 0x16c1, 0x2492, 0x16c1, 0x16c1, 0x0e3f, 0x16c1, 0x0e3f, 0x2492, 0x16c1, 0x2492, 0x16c1, 0x16c1, 0x0e3f, 0x16c1, 0x0e3f, 0x2000, 0x147b, 0x2000, 0x147b, 0x147b, 0x0d1b, 0x147b, 0x0d1b, 0x2000, 0x147b, 0x2000, 0x147b, 0x147b, 0x0d1b, 0x147b, 0x0d1b, 0x1c72, 0x11cf, 0x1c72, 0x11cf, 0x11cf, 0x0b4d, 0x11cf, 0x0b4d, 0x1c72, 0x11cf, 0x1c72, 0x11cf, 0x11cf, 0x0b4d, 0x11cf, 0x0b4d }; static const u16 inverse_quantization_table[QUANTIZATION_TABLE_LEN] = { 0x800a, 0x800d, 0x800a, 0x800d, 0x800d, 0x8010, 0x800d, 0x8010, 0x800a, 0x800d, 0x800a, 0x800d, 0x800d, 0x8010, 0x800d, 0x8010, 0x800b, 0x800e, 0x800b, 0x800e, 0x800e, 0x8012, 0x800e, 0x8012, 0x800b, 0x800e, 0x800b, 0x800e, 0x800e, 0x8012, 0x800e, 0x8012, 0x800d, 0x8010, 0x800d, 0x8010, 0x8010, 0x8014, 0x8010, 0x8014, 0x800d, 0x8010, 0x800d, 0x8010, 0x8010, 0x8014, 0x8010, 0x8014, 0x800e, 0x8012, 0x800e, 0x8012, 0x8012, 0x8017, 0x8012, 0x8017, 0x800e, 0x8012, 0x800e, 0x8012, 0x8012, 0x8017, 0x8012, 0x8017, 0x8010, 0x8014, 0x8010, 0x8014, 0x8014, 0x8019, 0x8014, 0x8019, 0x8010, 0x8014, 0x8010, 0x8014, 0x8014, 0x8019, 0x8014, 0x8019, 0x8012, 0x8017, 0x8012, 0x8017, 0x8017, 0x801d, 0x8017, 0x801d, 0x8012, 0x8017, 0x8012, 0x8017, 0x8017, 0x801d, 0x8017, 0x801d }; static const u16 encoder_vlc_lookup_table[VLC_LOOKUP_TABLE_LEN] = { 0x011, 0x000, 0x000, 0x000, 0x065, 0x021, 0x000, 0x000, 0x087, 0x064, 0x031, 0x000, 0x097, 0x086, 0x075, 0x053, 0x0a7, 0x096, 0x085, 0x063, 0x0b7, 0x0a6, 0x095, 0x074, 0x0df, 0x0b6, 0x0a5, 0x084, 0x0db, 0x0de, 0x0b5, 0x094, 0x0d8, 0x0da, 0x0dd, 0x0a4, 0x0ef, 0x0ee, 0x0d9, 0x0b4, 0x0eb, 0x0ea, 0x0ed, 0x0dc, 0x0ff, 0x0fe, 0x0e9, 0x0ec, 0x0fb, 0x0fa, 0x0fd, 0x0e8, 0x10f, 0x0f1, 0x0f9, 0x0fc, 0x10b, 0x10e, 0x10d, 0x0f8, 0x107, 0x10a, 0x109, 0x10c, 0x104, 0x106, 0x105, 0x108, 0x023, 0x000, 0x000, 0x000, 0x06b, 0x022, 0x000, 0x000, 0x067, 0x057, 0x033, 0x000, 0x077, 0x06a, 0x069, 0x045, 0x087, 0x066, 0x065, 0x044, 0x084, 0x076, 0x075, 0x056, 0x097, 0x086, 0x085, 0x068, 0x0bf, 0x096, 0x095, 0x064, 0x0bb, 0x0be, 0x0bd, 0x074, 0x0cf, 0x0ba, 0x0b9, 0x094, 0x0cb, 0x0ce, 0x0cd, 0x0bc, 0x0c8, 0x0ca, 0x0c9, 0x0b8, 0x0df, 0x0de, 0x0dd, 0x0cc, 0x0db, 0x0da, 0x0d9, 0x0dc, 0x0d7, 0x0eb, 0x0d6, 0x0d8, 0x0e9, 0x0e8, 0x0ea, 0x0d1, 0x0e7, 0x0e6, 0x0e5, 0x0e4, 0x04f, 0x000, 0x000, 0x000, 0x06f, 0x04e, 0x000, 0x000, 0x06b, 0x05f, 0x04d, 0x000, 0x068, 0x05c, 0x05e, 0x04c, 0x07f, 0x05a, 0x05b, 0x04b, 0x07b, 0x058, 0x059, 0x04a, 0x079, 0x06e, 0x06d, 0x049, 0x078, 0x06a, 0x069, 0x048, 0x08f, 0x07e, 0x07d, 0x05d, 0x08b, 0x08e, 0x07a, 0x06c, 0x09f, 0x08a, 0x08d, 0x07c, 0x09b, 0x09e, 0x089, 0x08c, 0x098, 0x09a, 0x09d, 0x088, 0x0ad, 0x097, 0x099, 0x09c, 0x0a9, 0x0ac, 0x0ab, 0x0aa, 0x0a5, 0x0a8, 0x0a7, 0x0a6, 0x0a1, 0x0a4, 0x0a3, 0x0a2, 0x021, 0x000, 0x000, 0x000, 0x067, 0x011, 0x000, 0x000, 0x064, 0x066, 0x031, 0x000, 0x063, 0x073, 0x072, 0x065, 0x062, 0x083, 0x082, 0x070, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x011, 0x010, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x011, 0x021, 0x020, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x023, 0x022, 0x021, 0x020, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x023, 0x022, 0x021, 0x031, 0x030, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x023, 0x022, 0x033, 0x032, 0x031, 0x030, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x023, 0x030, 0x031, 0x033, 0x032, 0x035, 0x034, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x037, 0x036, 0x035, 0x034, 0x033, 0x032, 0x031, 0x041, 0x051, 0x061, 0x071, 0x081, 0x091, 0x0a1, 0x0b1, 0x000, 0x002, 0x000, 0x0e4, 0x011, 0x0f4, 0x002, 0x024, 0x003, 0x005, 0x012, 0x034, 0x013, 0x065, 0x024, 0x013, 0x063, 0x015, 0x022, 0x075, 0x034, 0x044, 0x023, 0x023, 0x073, 0x054, 0x033, 0x033, 0x004, 0x043, 0x014, 0x011, 0x043, 0x014, 0x001, 0x025, 0x015, 0x035, 0x025, 0x064, 0x055, 0x045, 0x035, 0x074, 0x065, 0x085, 0x0d5, 0x012, 0x095, 0x055, 0x045, 0x095, 0x0e5, 0x084, 0x075, 0x022, 0x0a5, 0x094, 0x085, 0x032, 0x0b5, 0x003, 0x0c5, 0x001, 0x044, 0x0a5, 0x032, 0x0b5, 0x094, 0x0c5, 0x0a4, 0x0a4, 0x054, 0x0d5, 0x0b4, 0x0b4, 0x064, 0x0f5, 0x0f5, 0x053, 0x0d4, 0x0e5, 0x0c4, 0x105, 0x105, 0x0c4, 0x074, 0x063, 0x0e4, 0x0d4, 0x084, 0x073, 0x0f4, 0x004, 0x005, 0x000, 0x053, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x011, 0x021, 0x031, 0x030, 0x011, 0x021, 0x020, 0x000, 0x011, 0x010, 0x000, 0x000, 0x011, 0x033, 0x032, 0x043, 0x042, 0x053, 0x052, 0x063, 0x062, 0x073, 0x072, 0x083, 0x082, 0x093, 0x092, 0x091, 0x037, 0x036, 0x035, 0x034, 0x033, 0x045, 0x044, 0x043, 0x042, 0x053, 0x052, 0x063, 0x062, 0x061, 0x060, 0x000, 0x045, 0x037, 0x036, 0x035, 0x044, 0x043, 0x034, 0x033, 0x042, 0x053, 0x052, 0x061, 0x051, 0x060, 0x000, 0x000, 0x053, 0x037, 0x045, 0x044, 0x036, 0x035, 0x034, 0x043, 0x033, 0x042, 0x052, 0x051, 0x050, 0x000, 0x000, 0x000, 0x045, 0x044, 0x043, 0x037, 0x036, 0x035, 0x034, 0x033, 0x042, 0x051, 0x041, 0x050, 0x000, 0x000, 0x000, 0x000, 0x061, 0x051, 0x037, 0x036, 0x035, 0x034, 0x033, 0x032, 0x041, 0x031, 0x060, 0x000, 0x000, 0x000, 0x000, 0x000, 0x061, 0x051, 0x035, 0x034, 0x033, 0x023, 0x032, 0x041, 0x031, 0x060, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x061, 0x041, 0x051, 0x033, 0x023, 0x022, 0x032, 0x031, 0x060, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x061, 0x060, 0x041, 0x023, 0x022, 0x031, 0x021, 0x051, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x051, 0x050, 0x031, 0x023, 0x022, 0x021, 0x041, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x040, 0x041, 0x031, 0x032, 0x011, 0x033, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x040, 0x041, 0x021, 0x011, 0x031, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x030, 0x031, 0x011, 0x021, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x020, 0x021, 0x011, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x010, 0x011, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000 }; static const unsigned int lambda_lookup_table[] = { 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0040, 0x0040, 0x0040, 0x0040, 0x0060, 0x0060, 0x0060, 0x0080, 0x0080, 0x0080, 0x00a0, 0x00c0, 0x00c0, 0x00e0, 0x0100, 0x0120, 0x0140, 0x0160, 0x01a0, 0x01c0, 0x0200, 0x0240, 0x0280, 0x02e0, 0x0320, 0x03a0, 0x0400, 0x0480, 0x0500, 0x05a0, 0x0660, 0x0720, 0x0800, 0x0900, 0x0a20, 0x0b60 }; static const unsigned int intra4x4_lambda3[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 6, 6, 7, 8, 9, 10, 11, 13, 14, 16, 18, 20, 23, 25, 29, 32, 36, 40, 45, 51, 57, 64, 72, 81, 91 }; static v4l2_std_id tw5864_get_v4l2_std(enum tw5864_vid_std std); static enum tw5864_vid_std tw5864_from_v4l2_std(v4l2_std_id v4l2_std); static void tw5864_handle_frame_task(struct tasklet_struct *t); static void tw5864_handle_frame(struct tw5864_h264_frame *frame); static void tw5864_frame_interval_set(struct tw5864_input *input); static int tw5864_queue_setup(struct vb2_queue *q, unsigned int *num_buffers, unsigned int *num_planes, unsigned int sizes[], struct device *alloc_ctxs[]) { if (*num_planes) return sizes[0] < H264_VLC_BUF_SIZE ? -EINVAL : 0; sizes[0] = H264_VLC_BUF_SIZE; *num_planes = 1; return 0; } static void tw5864_buf_queue(struct vb2_buffer *vb) { struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); struct vb2_queue *vq = vb->vb2_queue; struct tw5864_input *dev = vb2_get_drv_priv(vq); struct tw5864_buf *buf = container_of(vbuf, struct tw5864_buf, vb); unsigned long flags; spin_lock_irqsave(&dev->slock, flags); list_add_tail(&buf->list, &dev->active); spin_unlock_irqrestore(&dev->slock, flags); } static int tw5864_input_std_get(struct tw5864_input *input, enum tw5864_vid_std *std) { struct tw5864_dev *dev = input->root; u8 std_reg = tw_indir_readb(TW5864_INDIR_VIN_E(input->nr)); *std = (std_reg & 0x70) >> 4; if (std_reg & 0x80) { dev_dbg(&dev->pci->dev, "Video format detection is in progress, please wait\n"); return -EAGAIN; } return 0; } static int tw5864_enable_input(struct tw5864_input *input) { struct tw5864_dev *dev = input->root; int nr = input->nr; unsigned long flags; int d1_width = 720; int d1_height; int frame_width_bus_value = 0; int frame_height_bus_value = 0; int reg_frame_bus = 0x1c; int fmt_reg_value = 0; int downscale_enabled = 0; dev_dbg(&dev->pci->dev, "Enabling channel %d\n", nr); input->frame_seqno = 0; input->frame_gop_seqno = 0; input->h264_idr_pic_id = 0; 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]; input->reg_emu = TW5864_EMU_EN_LPF | TW5864_EMU_EN_BHOST | TW5864_EMU_EN_SEN | TW5864_EMU_EN_ME | TW5864_EMU_EN_DDR; input->reg_dsp = nr /* channel id */ | TW5864_DSP_CHROM_SW | ((0xa << 8) & TW5864_DSP_MB_DELAY) ; input->resolution = D1; d1_height = (input->std == STD_NTSC) ? 480 : 576; input->width = d1_width; input->height = d1_height; input->reg_interlacing = 0x4; switch (input->resolution) { case D1: frame_width_bus_value = 0x2cf; frame_height_bus_value = input->height - 1; reg_frame_bus = 0x1c; 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); 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_queued_buffers = 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]); } }
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