solo6x10-v4l2-enc.c

   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * Copyright (C) 2010-2013 Bluecherry, LLC <https://www.bluecherrydvr.com>
   4 *
   5 * Original author:
   6 * Ben Collins <bcollins@ubuntu.com>
   7 *
   8 * Additional work by:
   9 * John Brooks <john.brooks@bluecherry.net>
  10 */
  11
  12#include <linux/kernel.h>
  13#include <linux/module.h>
  14#include <linux/kthread.h>
  15#include <linux/freezer.h>
  16
  17#include <media/v4l2-ioctl.h>
  18#include <media/v4l2-common.h>
  19#include <media/v4l2-event.h>
  20#include <media/videobuf2-dma-sg.h>
  21
  22#include "solo6x10.h"
  23#include "solo6x10-tw28.h"
  24#include "solo6x10-jpeg.h"
  25
  26#define MIN_VID_BUFFERS		2
  27#define FRAME_BUF_SIZE		(400 * 1024)
  28#define MP4_QS			16
  29#define DMA_ALIGN		4096
  30
  31/* 6010 M4V */
  32static u8 vop_6010_ntsc_d1[] = {
  33	0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20,
  34	0x02, 0x48, 0x1d, 0xc0, 0x00, 0x40, 0x00, 0x40,
  35	0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04,
  36	0x1f, 0x4c, 0x58, 0x10, 0xf0, 0x71, 0x18, 0x3f,
  37};
  38
  39static u8 vop_6010_ntsc_cif[] = {
  40	0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20,
  41	0x02, 0x48, 0x1d, 0xc0, 0x00, 0x40, 0x00, 0x40,
  42	0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04,
  43	0x1f, 0x4c, 0x2c, 0x10, 0x78, 0x51, 0x18, 0x3f,
  44};
  45
  46static u8 vop_6010_pal_d1[] = {
  47	0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20,
  48	0x02, 0x48, 0x15, 0xc0, 0x00, 0x40, 0x00, 0x40,
  49	0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04,
  50	0x1f, 0x4c, 0x58, 0x11, 0x20, 0x71, 0x18, 0x3f,
  51};
  52
  53static u8 vop_6010_pal_cif[] = {
  54	0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20,
  55	0x02, 0x48, 0x15, 0xc0, 0x00, 0x40, 0x00, 0x40,
  56	0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04,
  57	0x1f, 0x4c, 0x2c, 0x10, 0x90, 0x51, 0x18, 0x3f,
  58};
  59
  60/* 6110 h.264 */
  61static u8 vop_6110_ntsc_d1[] = {
  62	0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e,
  63	0x9a, 0x74, 0x05, 0x81, 0xec, 0x80, 0x00, 0x00,
  64	0x00, 0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00,
  65};
  66
  67static u8 vop_6110_ntsc_cif[] = {
  68	0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e,
  69	0x9a, 0x74, 0x0b, 0x0f, 0xc8, 0x00, 0x00, 0x00,
  70	0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00, 0x00,
  71};
  72
  73static u8 vop_6110_pal_d1[] = {
  74	0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e,
  75	0x9a, 0x74, 0x05, 0x80, 0x93, 0x20, 0x00, 0x00,
  76	0x00, 0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00,
  77};
  78
  79static u8 vop_6110_pal_cif[] = {
  80	0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e,
  81	0x9a, 0x74, 0x0b, 0x04, 0xb2, 0x00, 0x00, 0x00,
  82	0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00, 0x00,
  83};
  84
  85typedef __le32 vop_header[16];
  86
  87struct solo_enc_buf {
  88	enum solo_enc_types	type;
  89	const vop_header	*vh;
  90	int			motion;
  91};
  92
  93static int solo_is_motion_on(struct solo_enc_dev *solo_enc)
  94{
  95	struct solo_dev *solo_dev = solo_enc->solo_dev;
  96
  97	return (solo_dev->motion_mask >> solo_enc->ch) & 1;
  98}
  99
 100static int solo_motion_detected(struct solo_enc_dev *solo_enc)
 101{
 102	struct solo_dev *solo_dev = solo_enc->solo_dev;
 103	unsigned long flags;
 104	u32 ch_mask = 1 << solo_enc->ch;
 105	int ret = 0;
 106
 107	spin_lock_irqsave(&solo_enc->motion_lock, flags);
 108	if (solo_reg_read(solo_dev, SOLO_VI_MOT_STATUS) & ch_mask) {
 109		solo_reg_write(solo_dev, SOLO_VI_MOT_CLEAR, ch_mask);
 110		ret = 1;
 111	}
 112	spin_unlock_irqrestore(&solo_enc->motion_lock, flags);
 113
 114	return ret;
 115}
 116
 117static void solo_motion_toggle(struct solo_enc_dev *solo_enc, int on)
 118{
 119	struct solo_dev *solo_dev = solo_enc->solo_dev;
 120	u32 mask = 1 << solo_enc->ch;
 121	unsigned long flags;
 122
 123	spin_lock_irqsave(&solo_enc->motion_lock, flags);
 124
 125	if (on)
 126		solo_dev->motion_mask |= mask;
 127	else
 128		solo_dev->motion_mask &= ~mask;
 129
 130	solo_reg_write(solo_dev, SOLO_VI_MOT_CLEAR, mask);
 131
 132	solo_reg_write(solo_dev, SOLO_VI_MOT_ADR,
 133		       SOLO_VI_MOTION_EN(solo_dev->motion_mask) |
 134		       (SOLO_MOTION_EXT_ADDR(solo_dev) >> 16));
 135
 136	spin_unlock_irqrestore(&solo_enc->motion_lock, flags);
 137}
 138
 139void solo_update_mode(struct solo_enc_dev *solo_enc)
 140{
 141	struct solo_dev *solo_dev = solo_enc->solo_dev;
 142	int vop_len;
 143	u8 *vop;
 144
 145	solo_enc->interlaced = (solo_enc->mode & 0x08) ? 1 : 0;
 146	solo_enc->bw_weight = max(solo_dev->fps / solo_enc->interval, 1);
 147
 148	if (solo_enc->mode == SOLO_ENC_MODE_CIF) {
 149		solo_enc->width = solo_dev->video_hsize >> 1;
 150		solo_enc->height = solo_dev->video_vsize;
 151		if (solo_dev->type == SOLO_DEV_6110) {
 152			if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) {
 153				vop = vop_6110_ntsc_cif;
 154				vop_len = sizeof(vop_6110_ntsc_cif);
 155			} else {
 156				vop = vop_6110_pal_cif;
 157				vop_len = sizeof(vop_6110_pal_cif);
 158			}
 159		} else {
 160			if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) {
 161				vop = vop_6010_ntsc_cif;
 162				vop_len = sizeof(vop_6010_ntsc_cif);
 163			} else {
 164				vop = vop_6010_pal_cif;
 165				vop_len = sizeof(vop_6010_pal_cif);
 166			}
 167		}
 168	} else {
 169		solo_enc->width = solo_dev->video_hsize;
 170		solo_enc->height = solo_dev->video_vsize << 1;
 171		solo_enc->bw_weight <<= 2;
 172		if (solo_dev->type == SOLO_DEV_6110) {
 173			if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) {
 174				vop = vop_6110_ntsc_d1;
 175				vop_len = sizeof(vop_6110_ntsc_d1);
 176			} else {
 177				vop = vop_6110_pal_d1;
 178				vop_len = sizeof(vop_6110_pal_d1);
 179			}
 180		} else {
 181			if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) {
 182				vop = vop_6010_ntsc_d1;
 183				vop_len = sizeof(vop_6010_ntsc_d1);
 184			} else {
 185				vop = vop_6010_pal_d1;
 186				vop_len = sizeof(vop_6010_pal_d1);
 187			}
 188		}
 189	}
 190
 191	memcpy(solo_enc->vop, vop, vop_len);
 192
 193	/* Some fixups for 6010/M4V */
 194	if (solo_dev->type == SOLO_DEV_6010) {
 195		u16 fps = solo_dev->fps * 1000;
 196		u16 interval = solo_enc->interval * 1000;
 197
 198		vop = solo_enc->vop;
 199
 200		/* Frame rate and interval */
 201		vop[22] = fps >> 4;
 202		vop[23] = ((fps << 4) & 0xf0) | 0x0c
 203			| ((interval >> 13) & 0x3);
 204		vop[24] = (interval >> 5) & 0xff;
 205		vop[25] = ((interval << 3) & 0xf8) | 0x04;
 206	}
 207
 208	solo_enc->vop_len = vop_len;
 209
 210	/* Now handle the jpeg header */
 211	vop = solo_enc->jpeg_header;
 212	vop[SOF0_START + 5] = 0xff & (solo_enc->height >> 8);
 213	vop[SOF0_START + 6] = 0xff & solo_enc->height;
 214	vop[SOF0_START + 7] = 0xff & (solo_enc->width >> 8);
 215	vop[SOF0_START + 8] = 0xff & solo_enc->width;
 216
 217	memcpy(vop + DQT_START,
 218	       jpeg_dqt[solo_g_jpeg_qp(solo_dev, solo_enc->ch)], DQT_LEN);
 219}
 220
 221static int solo_enc_on(struct solo_enc_dev *solo_enc)
 222{
 223	u8 ch = solo_enc->ch;
 224	struct solo_dev *solo_dev = solo_enc->solo_dev;
 225	u8 interval;
 226
 227	solo_update_mode(solo_enc);
 228
 229	/* Make sure to do a bandwidth check */
 230	if (solo_enc->bw_weight > solo_dev->enc_bw_remain)
 231		return -EBUSY;
 232	solo_enc->sequence = 0;
 233	solo_dev->enc_bw_remain -= solo_enc->bw_weight;
 234
 235	if (solo_enc->type == SOLO_ENC_TYPE_EXT)
 236		solo_reg_write(solo_dev, SOLO_CAP_CH_COMP_ENA_E(ch), 1);
 237
 238	/* Disable all encoding for this channel */
 239	solo_reg_write(solo_dev, SOLO_CAP_CH_SCALE(ch), 0);
 240
 241	/* Common for both std and ext encoding */
 242	solo_reg_write(solo_dev, SOLO_VE_CH_INTL(ch),
 243		       solo_enc->interlaced ? 1 : 0);
 244
 245	if (solo_enc->interlaced)
 246		interval = solo_enc->interval - 1;
 247	else
 248		interval = solo_enc->interval;
 249
 250	/* Standard encoding only */
 251	solo_reg_write(solo_dev, SOLO_VE_CH_GOP(ch), solo_enc->gop);
 252	solo_reg_write(solo_dev, SOLO_VE_CH_QP(ch), solo_enc->qp);
 253	solo_reg_write(solo_dev, SOLO_CAP_CH_INTV(ch), interval);
 254
 255	/* Extended encoding only */
 256	solo_reg_write(solo_dev, SOLO_VE_CH_GOP_E(ch), solo_enc->gop);
 257	solo_reg_write(solo_dev, SOLO_VE_CH_QP_E(ch), solo_enc->qp);
 258	solo_reg_write(solo_dev, SOLO_CAP_CH_INTV_E(ch), interval);
 259
 260	/* Enables the standard encoder */
 261	solo_reg_write(solo_dev, SOLO_CAP_CH_SCALE(ch), solo_enc->mode);
 262
 263	return 0;
 264}
 265
 266static void solo_enc_off(struct solo_enc_dev *solo_enc)
 267{
 268	struct solo_dev *solo_dev = solo_enc->solo_dev;
 269
 270	solo_dev->enc_bw_remain += solo_enc->bw_weight;
 271
 272	solo_reg_write(solo_dev, SOLO_CAP_CH_SCALE(solo_enc->ch), 0);
 273	solo_reg_write(solo_dev, SOLO_CAP_CH_COMP_ENA_E(solo_enc->ch), 0);
 274}
 275
 276static int enc_get_mpeg_dma(struct solo_dev *solo_dev, dma_addr_t dma,
 277			      unsigned int off, unsigned int size)
 278{
 279	int ret;
 280
 281	if (off > SOLO_MP4E_EXT_SIZE(solo_dev))
 282		return -EINVAL;
 283
 284	/* Single shot */
 285	if (off + size <= SOLO_MP4E_EXT_SIZE(solo_dev)) {
 286		return solo_p2m_dma_t(solo_dev, 0, dma,
 287				      SOLO_MP4E_EXT_ADDR(solo_dev) + off, size,
 288				      0, 0);
 289	}
 290
 291	/* Buffer wrap */
 292	ret = solo_p2m_dma_t(solo_dev, 0, dma,
 293			     SOLO_MP4E_EXT_ADDR(solo_dev) + off,
 294			     SOLO_MP4E_EXT_SIZE(solo_dev) - off, 0, 0);
 295
 296	if (!ret) {
 297		ret = solo_p2m_dma_t(solo_dev, 0,
 298			     dma + SOLO_MP4E_EXT_SIZE(solo_dev) - off,
 299			     SOLO_MP4E_EXT_ADDR(solo_dev),
 300			     size + off - SOLO_MP4E_EXT_SIZE(solo_dev), 0, 0);
 301	}
 302
 303	return ret;
 304}
 305
 306/* Build a descriptor queue out of an SG list and send it to the P2M for
 307 * processing. */
 308static int solo_send_desc(struct solo_enc_dev *solo_enc, int skip,
 309			  struct sg_table *vbuf, int off, int size,
 310			  unsigned int base, unsigned int base_size)
 311{
 312	struct solo_dev *solo_dev = solo_enc->solo_dev;
 313	struct scatterlist *sg;
 314	int i;
 315	int ret;
 316
 317	if (WARN_ON_ONCE(size > FRAME_BUF_SIZE))
 318		return -EINVAL;
 319
 320	solo_enc->desc_count = 1;
 321
 322	for_each_sg(vbuf->sgl, sg, vbuf->nents, i) {
 323		struct solo_p2m_desc *desc;
 324		dma_addr_t dma;
 325		int len;
 326		int left = base_size - off;
 327
 328		desc = &solo_enc->desc_items[solo_enc->desc_count++];
 329		dma = sg_dma_address(sg);
 330		len = sg_dma_len(sg);
 331
 332		/* We assume this is smaller than the scatter size */
 333		BUG_ON(skip >= len);
 334		if (skip) {
 335			len -= skip;
 336			dma += skip;
 337			size -= skip;
 338			skip = 0;
 339		}
 340
 341		len = min(len, size);
 342
 343		if (len <= left) {
 344			/* Single descriptor */
 345			solo_p2m_fill_desc(desc, 0, dma, base + off,
 346					   len, 0, 0);
 347		} else {
 348			/* Buffer wrap */
 349			/* XXX: Do these as separate DMA requests, to avoid
 350			   timeout errors triggered by awkwardly sized
 351			   descriptors. See
 352			   <https://github.com/bluecherrydvr/solo6x10/issues/8>
 353			 */
 354			ret = solo_p2m_dma_t(solo_dev, 0, dma, base + off,
 355					     left, 0, 0);
 356			if (ret)
 357				return ret;
 358
 359			ret = solo_p2m_dma_t(solo_dev, 0, dma + left, base,
 360					     len - left, 0, 0);
 361			if (ret)
 362				return ret;
 363
 364			solo_enc->desc_count--;
 365		}
 366
 367		size -= len;
 368		if (size <= 0)
 369			break;
 370
 371		off += len;
 372		if (off >= base_size)
 373			off -= base_size;
 374
 375		/* Because we may use two descriptors per loop */
 376		if (solo_enc->desc_count >= (solo_enc->desc_nelts - 1)) {
 377			ret = solo_p2m_dma_desc(solo_dev, solo_enc->desc_items,
 378						solo_enc->desc_dma,
 379						solo_enc->desc_count - 1);
 380			if (ret)
 381				return ret;
 382			solo_enc->desc_count = 1;
 383		}
 384	}
 385
 386	if (solo_enc->desc_count <= 1)
 387		return 0;
 388
 389	return solo_p2m_dma_desc(solo_dev, solo_enc->desc_items,
 390			solo_enc->desc_dma, solo_enc->desc_count - 1);
 391}
 392
 393/* Extract values from VOP header - VE_STATUSxx */
 394static inline __always_unused int vop_interlaced(const vop_header *vh)
 395{
 396	return (__le32_to_cpu((*vh)[0]) >> 30) & 1;
 397}
 398
 399static inline __always_unused u8 vop_channel(const vop_header *vh)
 400{
 401	return (__le32_to_cpu((*vh)[0]) >> 24) & 0x1F;
 402}
 403
 404static inline u8 vop_type(const vop_header *vh)
 405{
 406	return (__le32_to_cpu((*vh)[0]) >> 22) & 3;
 407}
 408
 409static inline u32 vop_mpeg_size(const vop_header *vh)
 410{
 411	return __le32_to_cpu((*vh)[0]) & 0xFFFFF;
 412}
 413
 414static inline u8 __always_unused vop_hsize(const vop_header *vh)
 415{
 416	return (__le32_to_cpu((*vh)[1]) >> 8) & 0xFF;
 417}
 418
 419static inline u8 __always_unused vop_vsize(const vop_header *vh)
 420{
 421	return __le32_to_cpu((*vh)[1]) & 0xFF;
 422}
 423
 424static inline u32 vop_mpeg_offset(const vop_header *vh)
 425{
 426	return __le32_to_cpu((*vh)[2]);
 427}
 428
 429static inline u32 vop_jpeg_offset(const vop_header *vh)
 430{
 431	return __le32_to_cpu((*vh)[3]);
 432}
 433
 434static inline u32 vop_jpeg_size(const vop_header *vh)
 435{
 436	return __le32_to_cpu((*vh)[4]) & 0xFFFFF;
 437}
 438
 439static inline u32 __always_unused vop_sec(const vop_header *vh)
 440{
 441	return __le32_to_cpu((*vh)[5]);
 442}
 443
 444static inline __always_unused u32 vop_usec(const vop_header *vh)
 445{
 446	return __le32_to_cpu((*vh)[6]);
 447}
 448
 449static int solo_fill_jpeg(struct solo_enc_dev *solo_enc,
 450			  struct vb2_buffer *vb, const vop_header *vh)
 451{
 452	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 453	struct solo_dev *solo_dev = solo_enc->solo_dev;
 454	struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
 455	int frame_size;
 456
 457	vbuf->flags |= V4L2_BUF_FLAG_KEYFRAME;
 458
 459	if (vb2_plane_size(vb, 0) < vop_jpeg_size(vh) + solo_enc->jpeg_len)
 460		return -EIO;
 461
 462	frame_size = ALIGN(vop_jpeg_size(vh) + solo_enc->jpeg_len, DMA_ALIGN);
 463	vb2_set_plane_payload(vb, 0, vop_jpeg_size(vh) + solo_enc->jpeg_len);
 464
 465	return solo_send_desc(solo_enc, solo_enc->jpeg_len, sgt,
 466			     vop_jpeg_offset(vh) - SOLO_JPEG_EXT_ADDR(solo_dev),
 467			     frame_size, SOLO_JPEG_EXT_ADDR(solo_dev),
 468			     SOLO_JPEG_EXT_SIZE(solo_dev));
 469}
 470
 471static int solo_fill_mpeg(struct solo_enc_dev *solo_enc,
 472		struct vb2_buffer *vb, const vop_header *vh)
 473{
 474	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 475	struct solo_dev *solo_dev = solo_enc->solo_dev;
 476	struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
 477	int frame_off, frame_size;
 478	int skip = 0;
 479
 480	if (vb2_plane_size(vb, 0) < vop_mpeg_size(vh))
 481		return -EIO;
 482
 483	/* If this is a key frame, add extra header */
 484	vbuf->flags &= ~(V4L2_BUF_FLAG_KEYFRAME | V4L2_BUF_FLAG_PFRAME |
 485		V4L2_BUF_FLAG_BFRAME);
 486	if (!vop_type(vh)) {
 487		skip = solo_enc->vop_len;
 488		vbuf->flags |= V4L2_BUF_FLAG_KEYFRAME;
 489		vb2_set_plane_payload(vb, 0, vop_mpeg_size(vh) +
 490			solo_enc->vop_len);
 491	} else {
 492		vbuf->flags |= V4L2_BUF_FLAG_PFRAME;
 493		vb2_set_plane_payload(vb, 0, vop_mpeg_size(vh));
 494	}
 495
 496	/* Now get the actual mpeg payload */
 497	frame_off = (vop_mpeg_offset(vh) - SOLO_MP4E_EXT_ADDR(solo_dev) +
 498		sizeof(*vh)) % SOLO_MP4E_EXT_SIZE(solo_dev);
 499	frame_size = ALIGN(vop_mpeg_size(vh) + skip, DMA_ALIGN);
 500
 501	return solo_send_desc(solo_enc, skip, sgt, frame_off, frame_size,
 502			SOLO_MP4E_EXT_ADDR(solo_dev),
 503			SOLO_MP4E_EXT_SIZE(solo_dev));
 504}
 505
 506static int solo_enc_fillbuf(struct solo_enc_dev *solo_enc,
 507			    struct vb2_buffer *vb, struct solo_enc_buf *enc_buf)
 508{
 509	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 510	const vop_header *vh = enc_buf->vh;
 511	int ret;
 512
 513	switch (solo_enc->fmt) {
 514	case V4L2_PIX_FMT_MPEG4:
 515	case V4L2_PIX_FMT_H264:
 516		ret = solo_fill_mpeg(solo_enc, vb, vh);
 517		break;
 518	default: /* V4L2_PIX_FMT_MJPEG */
 519		ret = solo_fill_jpeg(solo_enc, vb, vh);
 520		break;
 521	}
 522
 523	if (!ret) {
 524		vbuf->sequence = solo_enc->sequence++;
 525		vb->timestamp = ktime_get_ns();
 526
 527		/* Check for motion flags */
 528		if (solo_is_motion_on(solo_enc) && enc_buf->motion) {
 529			struct v4l2_event ev = {
 530				.type = V4L2_EVENT_MOTION_DET,
 531				.u.motion_det = {
 532					.flags
 533					= V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ,
 534					.frame_sequence = vbuf->sequence,
 535					.region_mask = enc_buf->motion ? 1 : 0,
 536				},
 537			};
 538
 539			v4l2_event_queue(solo_enc->vfd, &ev);
 540		}
 541	}
 542
 543	vb2_buffer_done(vb, ret ? VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
 544
 545	return ret;
 546}
 547
 548static void solo_enc_handle_one(struct solo_enc_dev *solo_enc,
 549				struct solo_enc_buf *enc_buf)
 550{
 551	struct solo_vb2_buf *vb;
 552	unsigned long flags;
 553
 554	mutex_lock(&solo_enc->lock);
 555	if (solo_enc->type != enc_buf->type)
 556		goto unlock;
 557
 558	spin_lock_irqsave(&solo_enc->av_lock, flags);
 559	if (list_empty(&solo_enc->vidq_active)) {
 560		spin_unlock_irqrestore(&solo_enc->av_lock, flags);
 561		goto unlock;
 562	}
 563	vb = list_first_entry(&solo_enc->vidq_active, struct solo_vb2_buf,
 564		list);
 565	list_del(&vb->list);
 566	spin_unlock_irqrestore(&solo_enc->av_lock, flags);
 567
 568	solo_enc_fillbuf(solo_enc, &vb->vb.vb2_buf, enc_buf);
 569unlock:
 570	mutex_unlock(&solo_enc->lock);
 571}
 572
 573void solo_enc_v4l2_isr(struct solo_dev *solo_dev)
 574{
 575	wake_up_interruptible_all(&solo_dev->ring_thread_wait);
 576}
 577
 578static void solo_handle_ring(struct solo_dev *solo_dev)
 579{
 580	for (;;) {
 581		struct solo_enc_dev *solo_enc;
 582		struct solo_enc_buf enc_buf;
 583		u32 mpeg_current, off;
 584		u8 ch;
 585		u8 cur_q;
 586
 587		/* Check if the hardware has any new ones in the queue */
 588		cur_q = solo_reg_read(solo_dev, SOLO_VE_STATE(11)) & 0xff;
 589		if (cur_q == solo_dev->enc_idx)
 590			break;
 591
 592		mpeg_current = solo_reg_read(solo_dev,
 593					SOLO_VE_MPEG4_QUE(solo_dev->enc_idx));
 594		solo_dev->enc_idx = (solo_dev->enc_idx + 1) % MP4_QS;
 595
 596		ch = (mpeg_current >> 24) & 0x1f;
 597		off = mpeg_current & 0x00ffffff;
 598
 599		if (ch >= SOLO_MAX_CHANNELS) {
 600			ch -= SOLO_MAX_CHANNELS;
 601			enc_buf.type = SOLO_ENC_TYPE_EXT;
 602		} else
 603			enc_buf.type = SOLO_ENC_TYPE_STD;
 604
 605		solo_enc = solo_dev->v4l2_enc[ch];
 606		if (solo_enc == NULL) {
 607			dev_err(&solo_dev->pdev->dev,
 608				"Got spurious packet for channel %d\n", ch);
 609			continue;
 610		}
 611
 612		/* FAIL... */
 613		if (enc_get_mpeg_dma(solo_dev, solo_dev->vh_dma, off,
 614				     sizeof(vop_header)))
 615			continue;
 616
 617		enc_buf.vh = solo_dev->vh_buf;
 618
 619		/* Sanity check */
 620		if (vop_mpeg_offset(enc_buf.vh) !=
 621			SOLO_MP4E_EXT_ADDR(solo_dev) + off)
 622			continue;
 623
 624		if (solo_motion_detected(solo_enc))
 625			enc_buf.motion = 1;
 626		else
 627			enc_buf.motion = 0;
 628
 629		solo_enc_handle_one(solo_enc, &enc_buf);
 630	}
 631}
 632
 633static int solo_ring_thread(void *data)
 634{
 635	struct solo_dev *solo_dev = data;
 636	DECLARE_WAITQUEUE(wait, current);
 637
 638	set_freezable();
 639	add_wait_queue(&solo_dev->ring_thread_wait, &wait);
 640
 641	for (;;) {
 642		long timeout = schedule_timeout_interruptible(HZ);
 643
 644		if (timeout == -ERESTARTSYS || kthread_should_stop())
 645			break;
 646		solo_handle_ring(solo_dev);
 647		try_to_freeze();
 648	}
 649
 650	remove_wait_queue(&solo_dev->ring_thread_wait, &wait);
 651
 652	return 0;
 653}
 654
 655static int solo_enc_queue_setup(struct vb2_queue *q,
 656				unsigned int *num_buffers,
 657				unsigned int *num_planes, unsigned int sizes[],
 658				struct device *alloc_devs[])
 659{
 660	sizes[0] = FRAME_BUF_SIZE;
 661	*num_planes = 1;
 662
 663	if (*num_buffers < MIN_VID_BUFFERS)
 664		*num_buffers = MIN_VID_BUFFERS;
 665
 666	return 0;
 667}
 668
 669static void solo_enc_buf_queue(struct vb2_buffer *vb)
 670{
 671	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 672	struct vb2_queue *vq = vb->vb2_queue;
 673	struct solo_enc_dev *solo_enc = vb2_get_drv_priv(vq);
 674	struct solo_vb2_buf *solo_vb =
 675		container_of(vbuf, struct solo_vb2_buf, vb);
 676
 677	spin_lock(&solo_enc->av_lock);
 678	list_add_tail(&solo_vb->list, &solo_enc->vidq_active);
 679	spin_unlock(&solo_enc->av_lock);
 680}
 681
 682static int solo_ring_start(struct solo_dev *solo_dev)
 683{
 684	solo_dev->ring_thread = kthread_run(solo_ring_thread, solo_dev,
 685					    SOLO6X10_NAME "_ring");
 686	if (IS_ERR(solo_dev->ring_thread)) {
 687		int err = PTR_ERR(solo_dev->ring_thread);
 688
 689		solo_dev->ring_thread = NULL;
 690		return err;
 691	}
 692
 693	solo_irq_on(solo_dev, SOLO_IRQ_ENCODER);
 694
 695	return 0;
 696}
 697
 698static void solo_ring_stop(struct solo_dev *solo_dev)
 699{
 700	if (solo_dev->ring_thread) {
 701		kthread_stop(solo_dev->ring_thread);
 702		solo_dev->ring_thread = NULL;
 703	}
 704
 705	solo_irq_off(solo_dev, SOLO_IRQ_ENCODER);
 706}
 707
 708static int solo_enc_start_streaming(struct vb2_queue *q, unsigned int count)
 709{
 710	struct solo_enc_dev *solo_enc = vb2_get_drv_priv(q);
 711
 712	return solo_enc_on(solo_enc);
 713}
 714
 715static void solo_enc_stop_streaming(struct vb2_queue *q)
 716{
 717	struct solo_enc_dev *solo_enc = vb2_get_drv_priv(q);
 718	unsigned long flags;
 719
 720	spin_lock_irqsave(&solo_enc->av_lock, flags);
 721	solo_enc_off(solo_enc);
 722	while (!list_empty(&solo_enc->vidq_active)) {
 723		struct solo_vb2_buf *buf = list_entry(
 724				solo_enc->vidq_active.next,
 725				struct solo_vb2_buf, list);
 726
 727		list_del(&buf->list);
 728		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 729	}
 730	spin_unlock_irqrestore(&solo_enc->av_lock, flags);
 731}
 732
 733static void solo_enc_buf_finish(struct vb2_buffer *vb)
 734{
 735	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 736	struct solo_enc_dev *solo_enc = vb2_get_drv_priv(vb->vb2_queue);
 737	struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
 738
 739	switch (solo_enc->fmt) {
 740	case V4L2_PIX_FMT_MPEG4:
 741	case V4L2_PIX_FMT_H264:
 742		if (vbuf->flags & V4L2_BUF_FLAG_KEYFRAME)
 743			sg_copy_from_buffer(sgt->sgl, sgt->nents,
 744					solo_enc->vop, solo_enc->vop_len);
 745		break;
 746	default: /* V4L2_PIX_FMT_MJPEG */
 747		sg_copy_from_buffer(sgt->sgl, sgt->nents,
 748				solo_enc->jpeg_header, solo_enc->jpeg_len);
 749		break;
 750	}
 751}
 752
 753static const struct vb2_ops solo_enc_video_qops = {
 754	.queue_setup	= solo_enc_queue_setup,
 755	.buf_queue	= solo_enc_buf_queue,
 756	.buf_finish	= solo_enc_buf_finish,
 757	.start_streaming = solo_enc_start_streaming,
 758	.stop_streaming = solo_enc_stop_streaming,
 759};
 760
 761static int solo_enc_querycap(struct file *file, void  *priv,
 762			     struct v4l2_capability *cap)
 763{
 764	struct solo_enc_dev *solo_enc = video_drvdata(file);
 765
 766	strscpy(cap->driver, SOLO6X10_NAME, sizeof(cap->driver));
 767	snprintf(cap->card, sizeof(cap->card), "Softlogic 6x10 Enc %d",
 768		 solo_enc->ch);
 769	return 0;
 770}
 771
 772static int solo_enc_enum_input(struct file *file, void *priv,
 773			       struct v4l2_input *input)
 774{
 775	struct solo_enc_dev *solo_enc = video_drvdata(file);
 776	struct solo_dev *solo_dev = solo_enc->solo_dev;
 777
 778	if (input->index)
 779		return -EINVAL;
 780
 781	snprintf(input->name, sizeof(input->name), "Encoder %d",
 782		 solo_enc->ch + 1);
 783	input->type = V4L2_INPUT_TYPE_CAMERA;
 784	input->std = solo_enc->vfd->tvnorms;
 785
 786	if (!tw28_get_video_status(solo_dev, solo_enc->ch))
 787		input->status = V4L2_IN_ST_NO_SIGNAL;
 788
 789	return 0;
 790}
 791
 792static int solo_enc_set_input(struct file *file, void *priv,
 793			      unsigned int index)
 794{
 795	if (index)
 796		return -EINVAL;
 797
 798	return 0;
 799}
 800
 801static int solo_enc_get_input(struct file *file, void *priv,
 802			      unsigned int *index)
 803{
 804	*index = 0;
 805
 806	return 0;
 807}
 808
 809static int solo_enc_enum_fmt_cap(struct file *file, void *priv,
 810				 struct v4l2_fmtdesc *f)
 811{
 812	struct solo_enc_dev *solo_enc = video_drvdata(file);
 813	int dev_type = solo_enc->solo_dev->type;
 814
 815	switch (f->index) {
 816	case 0:
 817		switch (dev_type) {
 818		case SOLO_DEV_6010:
 819			f->pixelformat = V4L2_PIX_FMT_MPEG4;
 820			break;
 821		case SOLO_DEV_6110:
 822			f->pixelformat = V4L2_PIX_FMT_H264;
 823			break;
 824		}
 825		break;
 826	case 1:
 827		f->pixelformat = V4L2_PIX_FMT_MJPEG;
 828		break;
 829	default:
 830		return -EINVAL;
 831	}
 832	return 0;
 833}
 834
 835static inline int solo_valid_pixfmt(u32 pixfmt, int dev_type)
 836{
 837	return (pixfmt == V4L2_PIX_FMT_H264 && dev_type == SOLO_DEV_6110)
 838		|| (pixfmt == V4L2_PIX_FMT_MPEG4 && dev_type == SOLO_DEV_6010)
 839		|| pixfmt == V4L2_PIX_FMT_MJPEG ? 0 : -EINVAL;
 840}
 841
 842static int solo_enc_try_fmt_cap(struct file *file, void *priv,
 843			    struct v4l2_format *f)
 844{
 845	struct solo_enc_dev *solo_enc = video_drvdata(file);
 846	struct solo_dev *solo_dev = solo_enc->solo_dev;
 847	struct v4l2_pix_format *pix = &f->fmt.pix;
 848
 849	if (solo_valid_pixfmt(pix->pixelformat, solo_dev->type))
 850		return -EINVAL;
 851
 852	if (pix->width < solo_dev->video_hsize ||
 853	    pix->height < solo_dev->video_vsize << 1) {
 854		/* Default to CIF 1/2 size */
 855		pix->width = solo_dev->video_hsize >> 1;
 856		pix->height = solo_dev->video_vsize;
 857	} else {
 858		/* Full frame */
 859		pix->width = solo_dev->video_hsize;
 860		pix->height = solo_dev->video_vsize << 1;
 861	}
 862
 863	switch (pix->field) {
 864	case V4L2_FIELD_NONE:
 865	case V4L2_FIELD_INTERLACED:
 866		break;
 867	case V4L2_FIELD_ANY:
 868	default:
 869		pix->field = V4L2_FIELD_INTERLACED;
 870		break;
 871	}
 872
 873	/* Just set these */
 874	pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
 875	pix->sizeimage = FRAME_BUF_SIZE;
 876	pix->bytesperline = 0;
 877
 878	return 0;
 879}
 880
 881static int solo_enc_set_fmt_cap(struct file *file, void *priv,
 882				struct v4l2_format *f)
 883{
 884	struct solo_enc_dev *solo_enc = video_drvdata(file);
 885	struct solo_dev *solo_dev = solo_enc->solo_dev;
 886	struct v4l2_pix_format *pix = &f->fmt.pix;
 887	int ret;
 888
 889	if (vb2_is_busy(&solo_enc->vidq))
 890		return -EBUSY;
 891
 892	ret = solo_enc_try_fmt_cap(file, priv, f);
 893	if (ret)
 894		return ret;
 895
 896	if (pix->width == solo_dev->video_hsize)
 897		solo_enc->mode = SOLO_ENC_MODE_D1;
 898	else
 899		solo_enc->mode = SOLO_ENC_MODE_CIF;
 900
 901	/* This does not change the encoder at all */
 902	solo_enc->fmt = pix->pixelformat;
 903
 904	/*
 905	 * More information is needed about these 'extended' types. As far
 906	 * as I can tell these are basically additional video streams with
 907	 * different MPEG encoding attributes that can run in parallel with
 908	 * the main stream. If so, then this should be implemented as a
 909	 * second video node. Abusing priv like this is certainly not the
 910	 * right approach.
 911	if (pix->priv)
 912		solo_enc->type = SOLO_ENC_TYPE_EXT;
 913	 */
 914	solo_update_mode(solo_enc);
 915	return 0;
 916}
 917
 918static int solo_enc_get_fmt_cap(struct file *file, void *priv,
 919				struct v4l2_format *f)
 920{
 921	struct solo_enc_dev *solo_enc = video_drvdata(file);
 922	struct v4l2_pix_format *pix = &f->fmt.pix;
 923
 924	pix->width = solo_enc->width;
 925	pix->height = solo_enc->height;
 926	pix->pixelformat = solo_enc->fmt;
 927	pix->field = solo_enc->interlaced ? V4L2_FIELD_INTERLACED :
 928		     V4L2_FIELD_NONE;
 929	pix->sizeimage = FRAME_BUF_SIZE;
 930	pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
 931
 932	return 0;
 933}
 934
 935static int solo_enc_g_std(struct file *file, void *priv, v4l2_std_id *i)
 936{
 937	struct solo_enc_dev *solo_enc = video_drvdata(file);
 938	struct solo_dev *solo_dev = solo_enc->solo_dev;
 939
 940	if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC)
 941		*i = V4L2_STD_NTSC_M;
 942	else
 943		*i = V4L2_STD_PAL;
 944	return 0;
 945}
 946
 947static int solo_enc_s_std(struct file *file, void *priv, v4l2_std_id std)
 948{
 949	struct solo_enc_dev *solo_enc = video_drvdata(file);
 950
 951	return solo_set_video_type(solo_enc->solo_dev, std & V4L2_STD_625_50);
 952}
 953
 954static int solo_enum_framesizes(struct file *file, void *priv,
 955				struct v4l2_frmsizeenum *fsize)
 956{
 957	struct solo_enc_dev *solo_enc = video_drvdata(file);
 958	struct solo_dev *solo_dev = solo_enc->solo_dev;
 959
 960	if (solo_valid_pixfmt(fsize->pixel_format, solo_dev->type))
 961		return -EINVAL;
 962
 963	switch (fsize->index) {
 964	case 0:
 965		fsize->discrete.width = solo_dev->video_hsize >> 1;
 966		fsize->discrete.height = solo_dev->video_vsize;
 967		break;
 968	case 1:
 969		fsize->discrete.width = solo_dev->video_hsize;
 970		fsize->discrete.height = solo_dev->video_vsize << 1;
 971		break;
 972	default:
 973		return -EINVAL;
 974	}
 975
 976	fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
 977
 978	return 0;
 979}
 980
 981static int solo_enum_frameintervals(struct file *file, void *priv,
 982				    struct v4l2_frmivalenum *fintv)
 983{
 984	struct solo_enc_dev *solo_enc = video_drvdata(file);
 985	struct solo_dev *solo_dev = solo_enc->solo_dev;
 986
 987	if (solo_valid_pixfmt(fintv->pixel_format, solo_dev->type))
 988		return -EINVAL;
 989	if (fintv->index)
 990		return -EINVAL;
 991	if ((fintv->width != solo_dev->video_hsize >> 1 ||
 992	     fintv->height != solo_dev->video_vsize) &&
 993	    (fintv->width != solo_dev->video_hsize ||
 994	     fintv->height != solo_dev->video_vsize << 1))
 995		return -EINVAL;
 996
 997	fintv->type = V4L2_FRMIVAL_TYPE_STEPWISE;
 998
 999	fintv->stepwise.min.numerator = 1;
1000	fintv->stepwise.min.denominator = solo_dev->fps;
1001
1002	fintv->stepwise.max.numerator = 15;
1003	fintv->stepwise.max.denominator = solo_dev->fps;
1004
1005	fintv->stepwise.step.numerator = 1;
1006	fintv->stepwise.step.denominator = solo_dev->fps;
1007
1008	return 0;
1009}
1010
1011static int solo_g_parm(struct file *file, void *priv,
1012		       struct v4l2_streamparm *sp)
1013{
1014	struct solo_enc_dev *solo_enc = video_drvdata(file);
1015	struct v4l2_captureparm *cp = &sp->parm.capture;
1016
1017	cp->capability = V4L2_CAP_TIMEPERFRAME;
1018	cp->timeperframe.numerator = solo_enc->interval;
1019	cp->timeperframe.denominator = solo_enc->solo_dev->fps;
1020	cp->capturemode = 0;
1021	/* XXX: Shouldn't we be able to get/set this from vb2? */
1022	cp->readbuffers = 2;
1023
1024	return 0;
1025}
1026
1027static inline int calc_interval(u8 fps, u32 n, u32 d)
1028{
1029	if (!n || !d)
1030		return 1;
1031	if (d == fps)
1032		return n;
1033	n *= fps;
1034	return min(15U, n / d + (n % d >= (fps >> 1)));
1035}
1036
1037static int solo_s_parm(struct file *file, void *priv,
1038		       struct v4l2_streamparm *sp)
1039{
1040	struct solo_enc_dev *solo_enc = video_drvdata(file);
1041	struct v4l2_fract *t = &sp->parm.capture.timeperframe;
1042	u8 fps = solo_enc->solo_dev->fps;
1043
1044	if (vb2_is_streaming(&solo_enc->vidq))
1045		return -EBUSY;
1046
1047	solo_enc->interval = calc_interval(fps, t->numerator, t->denominator);
1048	solo_update_mode(solo_enc);
1049	return solo_g_parm(file, priv, sp);
1050}
1051
1052static int solo_s_ctrl(struct v4l2_ctrl *ctrl)
1053{
1054	struct solo_enc_dev *solo_enc =
1055		container_of(ctrl->handler, struct solo_enc_dev, hdl);
1056	struct solo_dev *solo_dev = solo_enc->solo_dev;
1057	int err;
1058
1059	switch (ctrl->id) {
1060	case V4L2_CID_BRIGHTNESS:
1061	case V4L2_CID_CONTRAST:
1062	case V4L2_CID_SATURATION:
1063	case V4L2_CID_HUE:
1064	case V4L2_CID_SHARPNESS:
1065		return tw28_set_ctrl_val(solo_dev, ctrl->id, solo_enc->ch,
1066					 ctrl->val);
1067	case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
1068		solo_enc->gop = ctrl->val;
1069		solo_reg_write(solo_dev, SOLO_VE_CH_GOP(solo_enc->ch), solo_enc->gop);
1070		solo_reg_write(solo_dev, SOLO_VE_CH_GOP_E(solo_enc->ch), solo_enc->gop);
1071		return 0;
1072	case V4L2_CID_MPEG_VIDEO_H264_MIN_QP:
1073		solo_enc->qp = ctrl->val;
1074		solo_reg_write(solo_dev, SOLO_VE_CH_QP(solo_enc->ch), solo_enc->qp);
1075		solo_reg_write(solo_dev, SOLO_VE_CH_QP_E(solo_enc->ch), solo_enc->qp);
1076		return 0;
1077	case V4L2_CID_DETECT_MD_GLOBAL_THRESHOLD:
1078		solo_enc->motion_thresh = ctrl->val << 8;
1079		if (!solo_enc->motion_global || !solo_enc->motion_enabled)
1080			return 0;
1081		return solo_set_motion_threshold(solo_dev, solo_enc->ch,
1082				solo_enc->motion_thresh);
1083	case V4L2_CID_DETECT_MD_MODE:
1084		solo_enc->motion_global = ctrl->val == V4L2_DETECT_MD_MODE_GLOBAL;
1085		solo_enc->motion_enabled = ctrl->val > V4L2_DETECT_MD_MODE_DISABLED;
1086		if (ctrl->val) {
1087			if (solo_enc->motion_global)
1088				err = solo_set_motion_threshold(solo_dev, solo_enc->ch,
1089					solo_enc->motion_thresh);
1090			else
1091				err = solo_set_motion_block(solo_dev, solo_enc->ch,
1092					solo_enc->md_thresholds->p_cur.p_u16);
1093			if (err)
1094				return err;
1095		}
1096		solo_motion_toggle(solo_enc, ctrl->val);
1097		return 0;
1098	case V4L2_CID_DETECT_MD_THRESHOLD_GRID:
1099		if (solo_enc->motion_enabled && !solo_enc->motion_global)
1100			return solo_set_motion_block(solo_dev, solo_enc->ch,
1101					solo_enc->md_thresholds->p_new.p_u16);
1102		break;
1103	case V4L2_CID_OSD_TEXT:
1104		strscpy(solo_enc->osd_text, ctrl->p_new.p_char,
1105			sizeof(solo_enc->osd_text));
1106		return solo_osd_print(solo_enc);
1107	default:
1108		return -EINVAL;
1109	}
1110
1111	return 0;
1112}
1113
1114static int solo_subscribe_event(struct v4l2_fh *fh,
1115				const struct v4l2_event_subscription *sub)
1116{
1117
1118	switch (sub->type) {
1119	case V4L2_EVENT_MOTION_DET:
1120		/* Allow for up to 30 events (1 second for NTSC) to be
1121		 * stored. */
1122		return v4l2_event_subscribe(fh, sub, 30, NULL);
1123	default:
1124		return v4l2_ctrl_subscribe_event(fh, sub);
1125	}
1126}
1127
1128static const struct v4l2_file_operations solo_enc_fops = {
1129	.owner			= THIS_MODULE,
1130	.open			= v4l2_fh_open,
1131	.release		= vb2_fop_release,
1132	.read			= vb2_fop_read,
1133	.poll			= vb2_fop_poll,
1134	.mmap			= vb2_fop_mmap,
1135	.unlocked_ioctl		= video_ioctl2,
1136};
1137
1138static const struct v4l2_ioctl_ops solo_enc_ioctl_ops = {
1139	.vidioc_querycap		= solo_enc_querycap,
1140	.vidioc_s_std			= solo_enc_s_std,
1141	.vidioc_g_std			= solo_enc_g_std,
1142	/* Input callbacks */
1143	.vidioc_enum_input		= solo_enc_enum_input,
1144	.vidioc_s_input			= solo_enc_set_input,
1145	.vidioc_g_input			= solo_enc_get_input,
1146	/* Video capture format callbacks */
1147	.vidioc_enum_fmt_vid_cap	= solo_enc_enum_fmt_cap,
1148	.vidioc_try_fmt_vid_cap		= solo_enc_try_fmt_cap,
1149	.vidioc_s_fmt_vid_cap		= solo_enc_set_fmt_cap,
1150	.vidioc_g_fmt_vid_cap		= solo_enc_get_fmt_cap,
1151	/* Streaming I/O */
1152	.vidioc_reqbufs			= vb2_ioctl_reqbufs,
1153	.vidioc_querybuf		= vb2_ioctl_querybuf,
1154	.vidioc_qbuf			= vb2_ioctl_qbuf,
1155	.vidioc_dqbuf			= vb2_ioctl_dqbuf,
1156	.vidioc_streamon		= vb2_ioctl_streamon,
1157	.vidioc_streamoff		= vb2_ioctl_streamoff,
1158	/* Frame size and interval */
1159	.vidioc_enum_framesizes		= solo_enum_framesizes,
1160	.vidioc_enum_frameintervals	= solo_enum_frameintervals,
1161	/* Video capture parameters */
1162	.vidioc_s_parm			= solo_s_parm,
1163	.vidioc_g_parm			= solo_g_parm,
1164	/* Logging and events */
1165	.vidioc_log_status		= v4l2_ctrl_log_status,
1166	.vidioc_subscribe_event		= solo_subscribe_event,
1167	.vidioc_unsubscribe_event	= v4l2_event_unsubscribe,
1168};
1169
1170static const struct video_device solo_enc_template = {
1171	.name			= SOLO6X10_NAME,
1172	.fops			= &solo_enc_fops,
1173	.ioctl_ops		= &solo_enc_ioctl_ops,
1174	.minor			= -1,
1175	.release		= video_device_release,
1176	.tvnorms		= V4L2_STD_NTSC_M | V4L2_STD_PAL,
1177	.device_caps		= V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE |
1178				  V4L2_CAP_STREAMING,
1179};
1180
1181static const struct v4l2_ctrl_ops solo_ctrl_ops = {
1182	.s_ctrl = solo_s_ctrl,
1183};
1184
1185static const struct v4l2_ctrl_config solo_osd_text_ctrl = {
1186	.ops = &solo_ctrl_ops,
1187	.id = V4L2_CID_OSD_TEXT,
1188	.name = "OSD Text",
1189	.type = V4L2_CTRL_TYPE_STRING,
1190	.max = OSD_TEXT_MAX,
1191	.step = 1,
1192};
1193
1194/* Motion Detection Threshold matrix */
1195static const struct v4l2_ctrl_config solo_md_thresholds = {
1196	.ops = &solo_ctrl_ops,
1197	.id = V4L2_CID_DETECT_MD_THRESHOLD_GRID,
1198	.dims = { SOLO_MOTION_SZ, SOLO_MOTION_SZ },
1199	.def = SOLO_DEF_MOT_THRESH,
1200	.max = 65535,
1201	.step = 1,
1202};
1203
1204static struct solo_enc_dev *solo_enc_alloc(struct solo_dev *solo_dev,
1205					   u8 ch, unsigned nr)
1206{
1207	struct solo_enc_dev *solo_enc;
1208	struct v4l2_ctrl_handler *hdl;
1209	int ret;
1210
1211	solo_enc = kzalloc(sizeof(*solo_enc), GFP_KERNEL);
1212	if (!solo_enc)
1213		return ERR_PTR(-ENOMEM);
1214
1215	hdl = &solo_enc->hdl;
1216	v4l2_ctrl_handler_init(hdl, 10);
1217	v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1218			V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
1219	v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1220			V4L2_CID_CONTRAST, 0, 255, 1, 128);
1221	v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1222			V4L2_CID_SATURATION, 0, 255, 1, 128);
1223	v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1224			V4L2_CID_HUE, 0, 255, 1, 128);
1225	if (tw28_has_sharpness(solo_dev, ch))
1226		v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1227			V4L2_CID_SHARPNESS, 0, 15, 1, 0);
1228	v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1229			V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 255, 1, solo_dev->fps);
1230	v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1231			V4L2_CID_MPEG_VIDEO_H264_MIN_QP, 0, 31, 1, SOLO_DEFAULT_QP);
1232	v4l2_ctrl_new_std_menu(hdl, &solo_ctrl_ops,
1233			V4L2_CID_DETECT_MD_MODE,
1234			V4L2_DETECT_MD_MODE_THRESHOLD_GRID, 0,
1235			V4L2_DETECT_MD_MODE_DISABLED);
1236	v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1237			V4L2_CID_DETECT_MD_GLOBAL_THRESHOLD, 0, 0xff, 1,
1238			SOLO_DEF_MOT_THRESH >> 8);
1239	v4l2_ctrl_new_custom(hdl, &solo_osd_text_ctrl, NULL);
1240	solo_enc->md_thresholds =
1241		v4l2_ctrl_new_custom(hdl, &solo_md_thresholds, NULL);
1242	if (hdl->error) {
1243		ret = hdl->error;
1244		goto hdl_free;
1245	}
1246
1247	solo_enc->solo_dev = solo_dev;
1248	solo_enc->ch = ch;
1249	mutex_init(&solo_enc->lock);
1250	spin_lock_init(&solo_enc->av_lock);
1251	INIT_LIST_HEAD(&solo_enc->vidq_active);
1252	solo_enc->fmt = (solo_dev->type == SOLO_DEV_6010) ?
1253		V4L2_PIX_FMT_MPEG4 : V4L2_PIX_FMT_H264;
1254	solo_enc->type = SOLO_ENC_TYPE_STD;
1255
1256	solo_enc->qp = SOLO_DEFAULT_QP;
1257	solo_enc->gop = solo_dev->fps;
1258	solo_enc->interval = 1;
1259	solo_enc->mode = SOLO_ENC_MODE_CIF;
1260	solo_enc->motion_global = true;
1261	solo_enc->motion_thresh = SOLO_DEF_MOT_THRESH;
1262	solo_enc->vidq.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1263	solo_enc->vidq.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
1264	solo_enc->vidq.ops = &solo_enc_video_qops;
1265	solo_enc->vidq.mem_ops = &vb2_dma_sg_memops;
1266	solo_enc->vidq.drv_priv = solo_enc;
1267	solo_enc->vidq.gfp_flags = __GFP_DMA32 | __GFP_KSWAPD_RECLAIM;
1268	solo_enc->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1269	solo_enc->vidq.buf_struct_size = sizeof(struct solo_vb2_buf);
1270	solo_enc->vidq.lock = &solo_enc->lock;
1271	solo_enc->vidq.dev = &solo_dev->pdev->dev;
1272	ret = vb2_queue_init(&solo_enc->vidq);
1273	if (ret)
1274		goto hdl_free;
1275	solo_update_mode(solo_enc);
1276
1277	spin_lock_init(&solo_enc->motion_lock);
1278
1279	/* Initialize this per encoder */
1280	solo_enc->jpeg_len = sizeof(jpeg_header);
1281	memcpy(solo_enc->jpeg_header, jpeg_header, solo_enc->jpeg_len);
1282
1283	solo_enc->desc_nelts = 32;
1284	solo_enc->desc_items = dma_alloc_coherent(&solo_dev->pdev->dev,
1285						  sizeof(struct solo_p2m_desc) *
1286						  solo_enc->desc_nelts,
1287						  &solo_enc->desc_dma,
1288						  GFP_KERNEL);
1289	ret = -ENOMEM;
1290	if (solo_enc->desc_items == NULL)
1291		goto hdl_free;
1292
1293	solo_enc->vfd = video_device_alloc();
1294	if (!solo_enc->vfd)
1295		goto pci_free;
1296
1297	*solo_enc->vfd = solo_enc_template;
1298	solo_enc->vfd->v4l2_dev = &solo_dev->v4l2_dev;
1299	solo_enc->vfd->ctrl_handler = hdl;
1300	solo_enc->vfd->queue = &solo_enc->vidq;
1301	solo_enc->vfd->lock = &solo_enc->lock;
1302	video_set_drvdata(solo_enc->vfd, solo_enc);
1303	ret = video_register_device(solo_enc->vfd, VFL_TYPE_VIDEO, nr);
1304	if (ret < 0)
1305		goto vdev_release;
1306
1307	snprintf(solo_enc->vfd->name, sizeof(solo_enc->vfd->name),
1308		 "%s-enc (%i/%i)", SOLO6X10_NAME, solo_dev->vfd->num,
1309		 solo_enc->vfd->num);
1310
1311	return solo_enc;
1312
1313vdev_release:
1314	video_device_release(solo_enc->vfd);
1315pci_free:
1316	dma_free_coherent(&solo_enc->solo_dev->pdev->dev,
1317			  sizeof(struct solo_p2m_desc) * solo_enc->desc_nelts,
1318			  solo_enc->desc_items, solo_enc->desc_dma);
1319hdl_free:
1320	v4l2_ctrl_handler_free(hdl);
1321	kfree(solo_enc);
1322	return ERR_PTR(ret);
1323}
1324
1325static void solo_enc_free(struct solo_enc_dev *solo_enc)
1326{
1327	if (solo_enc == NULL)
1328		return;
1329
1330	dma_free_coherent(&solo_enc->solo_dev->pdev->dev,
1331			  sizeof(struct solo_p2m_desc) * solo_enc->desc_nelts,
1332			  solo_enc->desc_items, solo_enc->desc_dma);
1333	video_unregister_device(solo_enc->vfd);
1334	v4l2_ctrl_handler_free(&solo_enc->hdl);
1335	kfree(solo_enc);
1336}
1337
1338int solo_enc_v4l2_init(struct solo_dev *solo_dev, unsigned nr)
1339{
1340	int i;
1341
1342	init_waitqueue_head(&solo_dev->ring_thread_wait);
1343
1344	solo_dev->vh_size = sizeof(vop_header);
1345	solo_dev->vh_buf = dma_alloc_coherent(&solo_dev->pdev->dev,
1346					      solo_dev->vh_size,
1347					      &solo_dev->vh_dma, GFP_KERNEL);
1348	if (solo_dev->vh_buf == NULL)
1349		return -ENOMEM;
1350
1351	for (i = 0; i < solo_dev->nr_chans; i++) {
1352		solo_dev->v4l2_enc[i] = solo_enc_alloc(solo_dev, i, nr);
1353		if (IS_ERR(solo_dev->v4l2_enc[i]))
1354			break;
1355	}
1356
1357	if (i != solo_dev->nr_chans) {
1358		int ret = PTR_ERR(solo_dev->v4l2_enc[i]);
1359
1360		while (i--)
1361			solo_enc_free(solo_dev->v4l2_enc[i]);
1362		dma_free_coherent(&solo_dev->pdev->dev, solo_dev->vh_size,
1363				  solo_dev->vh_buf, solo_dev->vh_dma);
1364		solo_dev->vh_buf = NULL;
1365		return ret;
1366	}
1367
1368	if (solo_dev->type == SOLO_DEV_6010)
1369		solo_dev->enc_bw_remain = solo_dev->fps * 4 * 4;
1370	else
1371		solo_dev->enc_bw_remain = solo_dev->fps * 4 * 5;
1372
1373	dev_info(&solo_dev->pdev->dev, "Encoders as /dev/video%d-%d\n",
1374		 solo_dev->v4l2_enc[0]->vfd->num,
1375		 solo_dev->v4l2_enc[solo_dev->nr_chans - 1]->vfd->num);
1376
1377	return solo_ring_start(solo_dev);
1378}
1379
1380void solo_enc_v4l2_exit(struct solo_dev *solo_dev)
1381{
1382	int i;
1383
1384	solo_ring_stop(solo_dev);
1385
1386	for (i = 0; i < solo_dev->nr_chans; i++)
1387		solo_enc_free(solo_dev->v4l2_enc[i]);
1388
1389	if (solo_dev->vh_buf)
1390		dma_free_coherent(&solo_dev->pdev->dev, solo_dev->vh_size,
1391				  solo_dev->vh_buf, solo_dev->vh_dma);
1392}