2 * Coda multi-standard codec IP
4 * Copyright (C) 2012 Vista Silicon S.L.
5 * Javier Martin, <javier.martin@vista-silicon.com>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
14 #include <linux/clk.h>
15 #include <linux/delay.h>
16 #include <linux/firmware.h>
17 #include <linux/interrupt.h>
19 #include <linux/irq.h>
20 #include <linux/module.h>
21 #include <linux/of_device.h>
22 #include <linux/platform_device.h>
23 #include <linux/slab.h>
24 #include <linux/videodev2.h>
27 #include <media/v4l2-ctrls.h>
28 #include <media/v4l2-device.h>
29 #include <media/v4l2-ioctl.h>
30 #include <media/v4l2-mem2mem.h>
31 #include <media/videobuf2-core.h>
32 #include <media/videobuf2-dma-contig.h>
36 #define CODA_NAME "coda"
38 #define CODA_MAX_INSTANCES 4
40 #define CODA_FMO_BUF_SIZE 32
41 #define CODADX6_WORK_BUF_SIZE (288 * 1024 + CODA_FMO_BUF_SIZE * 8 * 1024)
42 #define CODA7_WORK_BUF_SIZE (512 * 1024 + CODA_FMO_BUF_SIZE * 8 * 1024)
43 #define CODA_PARA_BUF_SIZE (10 * 1024)
44 #define CODA_ISRAM_SIZE (2048 * 2)
46 #define CODA_OUTPUT_BUFS 4
47 #define CODA_CAPTURE_BUFS 2
51 #define CODA_MAX_FRAME_SIZE 0x90000
52 #define FMO_SLICE_SAVE_BUF_SIZE (32)
53 #define CODA_DEFAULT_GAMMA 4096
60 #define S_ALIGN 1 /* multiple of 2 */
61 #define W_ALIGN 1 /* multiple of 2 */
62 #define H_ALIGN 1 /* multiple of 2 */
64 #define fh_to_ctx(__fh) container_of(__fh, struct coda_ctx, fh)
66 static int coda_debug
;
67 module_param(coda_debug
, int, 0);
68 MODULE_PARM_DESC(coda_debug
, "Debug level (0-1)");
92 enum coda_fmt_type type
;
97 enum coda_product product
;
98 struct coda_fmt
*formats
;
99 unsigned int num_formats
;
103 /* Per-queue, driver-specific private data */
107 unsigned int sizeimage
;
108 struct coda_fmt
*fmt
;
111 struct coda_aux_buf
{
118 struct v4l2_device v4l2_dev
;
119 struct video_device vfd
;
120 struct platform_device
*plat_dev
;
121 struct coda_devtype
*devtype
;
123 void __iomem
*regs_base
;
127 struct coda_aux_buf codebuf
;
128 struct coda_aux_buf workbuf
;
131 struct mutex dev_mutex
;
132 struct v4l2_m2m_dev
*m2m_dev
;
133 struct vb2_alloc_ctx
*alloc_ctx
;
144 enum v4l2_mpeg_video_multi_slice_mode slice_mode
;
151 struct coda_dev
*dev
;
156 struct coda_q_data q_data
[2];
157 enum coda_inst_type inst_type
;
158 enum v4l2_colorspace colorspace
;
159 struct coda_params params
;
160 struct v4l2_m2m_ctx
*m2m_ctx
;
161 struct v4l2_ctrl_handler ctrls
;
163 struct vb2_buffer
*reference
;
165 char vpu_header
[3][64];
166 int vpu_header_size
[3];
167 struct coda_aux_buf parabuf
;
171 static inline void coda_write(struct coda_dev
*dev
, u32 data
, u32 reg
)
173 v4l2_dbg(1, coda_debug
, &dev
->v4l2_dev
,
174 "%s: data=0x%x, reg=0x%x\n", __func__
, data
, reg
);
175 writel(data
, dev
->regs_base
+ reg
);
178 static inline unsigned int coda_read(struct coda_dev
*dev
, u32 reg
)
181 data
= readl(dev
->regs_base
+ reg
);
182 v4l2_dbg(1, coda_debug
, &dev
->v4l2_dev
,
183 "%s: data=0x%x, reg=0x%x\n", __func__
, data
, reg
);
187 static inline unsigned long coda_isbusy(struct coda_dev
*dev
)
189 return coda_read(dev
, CODA_REG_BIT_BUSY
);
192 static inline int coda_is_initialized(struct coda_dev
*dev
)
194 return (coda_read(dev
, CODA_REG_BIT_CUR_PC
) != 0);
197 static int coda_wait_timeout(struct coda_dev
*dev
)
199 unsigned long timeout
= jiffies
+ msecs_to_jiffies(1000);
201 while (coda_isbusy(dev
)) {
202 if (time_after(jiffies
, timeout
))
208 static void coda_command_async(struct coda_ctx
*ctx
, int cmd
)
210 struct coda_dev
*dev
= ctx
->dev
;
211 coda_write(dev
, CODA_REG_BIT_BUSY_FLAG
, CODA_REG_BIT_BUSY
);
213 coda_write(dev
, ctx
->idx
, CODA_REG_BIT_RUN_INDEX
);
214 coda_write(dev
, ctx
->params
.codec_mode
, CODA_REG_BIT_RUN_COD_STD
);
215 coda_write(dev
, cmd
, CODA_REG_BIT_RUN_COMMAND
);
218 static int coda_command_sync(struct coda_ctx
*ctx
, int cmd
)
220 struct coda_dev
*dev
= ctx
->dev
;
222 coda_command_async(ctx
, cmd
);
223 return coda_wait_timeout(dev
);
226 static struct coda_q_data
*get_q_data(struct coda_ctx
*ctx
,
227 enum v4l2_buf_type type
)
230 case V4L2_BUF_TYPE_VIDEO_OUTPUT
:
231 return &(ctx
->q_data
[V4L2_M2M_SRC
]);
232 case V4L2_BUF_TYPE_VIDEO_CAPTURE
:
233 return &(ctx
->q_data
[V4L2_M2M_DST
]);
241 * Add one array of supported formats for each version of Coda:
246 static struct coda_fmt codadx6_formats
[] = {
248 .name
= "YUV 4:2:0 Planar",
249 .fourcc
= V4L2_PIX_FMT_YUV420
,
250 .type
= CODA_FMT_RAW
,
253 .name
= "H264 Encoded Stream",
254 .fourcc
= V4L2_PIX_FMT_H264
,
255 .type
= CODA_FMT_ENC
,
258 .name
= "MPEG4 Encoded Stream",
259 .fourcc
= V4L2_PIX_FMT_MPEG4
,
260 .type
= CODA_FMT_ENC
,
264 static struct coda_fmt
*find_format(struct coda_dev
*dev
, struct v4l2_format
*f
)
266 struct coda_fmt
*formats
= dev
->devtype
->formats
;
267 int num_formats
= dev
->devtype
->num_formats
;
270 for (k
= 0; k
< num_formats
; k
++) {
271 if (formats
[k
].fourcc
== f
->fmt
.pix
.pixelformat
)
275 if (k
== num_formats
)
282 * V4L2 ioctl() operations.
284 static int vidioc_querycap(struct file
*file
, void *priv
,
285 struct v4l2_capability
*cap
)
287 strlcpy(cap
->driver
, CODA_NAME
, sizeof(cap
->driver
));
288 strlcpy(cap
->card
, CODA_NAME
, sizeof(cap
->card
));
289 strlcpy(cap
->bus_info
, CODA_NAME
, sizeof(cap
->bus_info
));
290 cap
->device_caps
= V4L2_CAP_VIDEO_CAPTURE
| V4L2_CAP_VIDEO_OUTPUT
291 | V4L2_CAP_STREAMING
;
292 cap
->capabilities
= cap
->device_caps
| V4L2_CAP_DEVICE_CAPS
;
297 static int enum_fmt(void *priv
, struct v4l2_fmtdesc
*f
,
298 enum coda_fmt_type type
)
300 struct coda_ctx
*ctx
= fh_to_ctx(priv
);
301 struct coda_dev
*dev
= ctx
->dev
;
302 struct coda_fmt
*formats
= dev
->devtype
->formats
;
303 struct coda_fmt
*fmt
;
304 int num_formats
= dev
->devtype
->num_formats
;
307 for (i
= 0; i
< num_formats
; i
++) {
308 if (formats
[i
].type
== type
) {
315 if (i
< num_formats
) {
317 strlcpy(f
->description
, fmt
->name
, sizeof(f
->description
));
318 f
->pixelformat
= fmt
->fourcc
;
322 /* Format not found */
326 static int vidioc_enum_fmt_vid_cap(struct file
*file
, void *priv
,
327 struct v4l2_fmtdesc
*f
)
329 return enum_fmt(priv
, f
, CODA_FMT_ENC
);
332 static int vidioc_enum_fmt_vid_out(struct file
*file
, void *priv
,
333 struct v4l2_fmtdesc
*f
)
335 return enum_fmt(priv
, f
, CODA_FMT_RAW
);
338 static int vidioc_g_fmt(struct file
*file
, void *priv
, struct v4l2_format
*f
)
340 struct vb2_queue
*vq
;
341 struct coda_q_data
*q_data
;
342 struct coda_ctx
*ctx
= fh_to_ctx(priv
);
344 vq
= v4l2_m2m_get_vq(ctx
->m2m_ctx
, f
->type
);
348 q_data
= get_q_data(ctx
, f
->type
);
350 f
->fmt
.pix
.field
= V4L2_FIELD_NONE
;
351 f
->fmt
.pix
.pixelformat
= q_data
->fmt
->fourcc
;
352 f
->fmt
.pix
.width
= q_data
->width
;
353 f
->fmt
.pix
.height
= q_data
->height
;
354 if (f
->fmt
.pix
.pixelformat
== V4L2_PIX_FMT_YUV420
)
355 f
->fmt
.pix
.bytesperline
= round_up(f
->fmt
.pix
.width
, 2);
356 else /* encoded formats h.264/mpeg4 */
357 f
->fmt
.pix
.bytesperline
= 0;
359 f
->fmt
.pix
.sizeimage
= q_data
->sizeimage
;
360 f
->fmt
.pix
.colorspace
= ctx
->colorspace
;
365 static int vidioc_try_fmt(struct coda_dev
*dev
, struct v4l2_format
*f
)
367 enum v4l2_field field
;
369 field
= f
->fmt
.pix
.field
;
370 if (field
== V4L2_FIELD_ANY
)
371 field
= V4L2_FIELD_NONE
;
372 else if (V4L2_FIELD_NONE
!= field
)
375 /* V4L2 specification suggests the driver corrects the format struct
376 * if any of the dimensions is unsupported */
377 f
->fmt
.pix
.field
= field
;
379 if (f
->fmt
.pix
.pixelformat
== V4L2_PIX_FMT_YUV420
) {
380 v4l_bound_align_image(&f
->fmt
.pix
.width
, MIN_W
, MAX_W
,
381 W_ALIGN
, &f
->fmt
.pix
.height
,
382 MIN_H
, MAX_H
, H_ALIGN
, S_ALIGN
);
383 f
->fmt
.pix
.bytesperline
= round_up(f
->fmt
.pix
.width
, 2);
384 f
->fmt
.pix
.sizeimage
= f
->fmt
.pix
.height
*
385 f
->fmt
.pix
.bytesperline
;
386 } else { /*encoded formats h.264/mpeg4 */
387 f
->fmt
.pix
.bytesperline
= 0;
388 f
->fmt
.pix
.sizeimage
= CODA_MAX_FRAME_SIZE
;
394 static int vidioc_try_fmt_vid_cap(struct file
*file
, void *priv
,
395 struct v4l2_format
*f
)
398 struct coda_fmt
*fmt
;
399 struct coda_ctx
*ctx
= fh_to_ctx(priv
);
401 fmt
= find_format(ctx
->dev
, f
);
403 * Since decoding support is not implemented yet do not allow
404 * CODA_FMT_RAW formats in the capture interface.
406 if (!fmt
|| !(fmt
->type
== CODA_FMT_ENC
))
407 f
->fmt
.pix
.pixelformat
= V4L2_PIX_FMT_H264
;
409 f
->fmt
.pix
.colorspace
= ctx
->colorspace
;
411 ret
= vidioc_try_fmt(ctx
->dev
, f
);
418 static int vidioc_try_fmt_vid_out(struct file
*file
, void *priv
,
419 struct v4l2_format
*f
)
421 struct coda_ctx
*ctx
= fh_to_ctx(priv
);
422 struct coda_fmt
*fmt
;
425 fmt
= find_format(ctx
->dev
, f
);
427 * Since decoding support is not implemented yet do not allow
428 * CODA_FMT formats in the capture interface.
430 if (!fmt
|| !(fmt
->type
== CODA_FMT_RAW
))
431 f
->fmt
.pix
.pixelformat
= V4L2_PIX_FMT_YUV420
;
433 if (!f
->fmt
.pix
.colorspace
)
434 f
->fmt
.pix
.colorspace
= V4L2_COLORSPACE_REC709
;
436 ret
= vidioc_try_fmt(ctx
->dev
, f
);
443 static int vidioc_s_fmt(struct coda_ctx
*ctx
, struct v4l2_format
*f
)
445 struct coda_q_data
*q_data
;
446 struct vb2_queue
*vq
;
449 vq
= v4l2_m2m_get_vq(ctx
->m2m_ctx
, f
->type
);
453 q_data
= get_q_data(ctx
, f
->type
);
457 if (vb2_is_busy(vq
)) {
458 v4l2_err(&ctx
->dev
->v4l2_dev
, "%s queue busy\n", __func__
);
462 ret
= vidioc_try_fmt(ctx
->dev
, f
);
466 q_data
->fmt
= find_format(ctx
->dev
, f
);
467 q_data
->width
= f
->fmt
.pix
.width
;
468 q_data
->height
= f
->fmt
.pix
.height
;
469 if (q_data
->fmt
->fourcc
== V4L2_PIX_FMT_YUV420
) {
470 q_data
->sizeimage
= q_data
->width
* q_data
->height
* 3 / 2;
471 } else { /* encoded format h.264/mpeg-4 */
472 q_data
->sizeimage
= CODA_MAX_FRAME_SIZE
;
475 v4l2_dbg(1, coda_debug
, &ctx
->dev
->v4l2_dev
,
476 "Setting format for type %d, wxh: %dx%d, fmt: %d\n",
477 f
->type
, q_data
->width
, q_data
->height
, q_data
->fmt
->fourcc
);
482 static int vidioc_s_fmt_vid_cap(struct file
*file
, void *priv
,
483 struct v4l2_format
*f
)
487 ret
= vidioc_try_fmt_vid_cap(file
, priv
, f
);
491 return vidioc_s_fmt(fh_to_ctx(priv
), f
);
494 static int vidioc_s_fmt_vid_out(struct file
*file
, void *priv
,
495 struct v4l2_format
*f
)
497 struct coda_ctx
*ctx
= fh_to_ctx(priv
);
500 ret
= vidioc_try_fmt_vid_out(file
, priv
, f
);
504 ret
= vidioc_s_fmt(fh_to_ctx(priv
), f
);
506 ctx
->colorspace
= f
->fmt
.pix
.colorspace
;
511 static int vidioc_reqbufs(struct file
*file
, void *priv
,
512 struct v4l2_requestbuffers
*reqbufs
)
514 struct coda_ctx
*ctx
= fh_to_ctx(priv
);
516 return v4l2_m2m_reqbufs(file
, ctx
->m2m_ctx
, reqbufs
);
519 static int vidioc_querybuf(struct file
*file
, void *priv
,
520 struct v4l2_buffer
*buf
)
522 struct coda_ctx
*ctx
= fh_to_ctx(priv
);
524 return v4l2_m2m_querybuf(file
, ctx
->m2m_ctx
, buf
);
527 static int vidioc_qbuf(struct file
*file
, void *priv
, struct v4l2_buffer
*buf
)
529 struct coda_ctx
*ctx
= fh_to_ctx(priv
);
531 return v4l2_m2m_qbuf(file
, ctx
->m2m_ctx
, buf
);
534 static int vidioc_dqbuf(struct file
*file
, void *priv
, struct v4l2_buffer
*buf
)
536 struct coda_ctx
*ctx
= fh_to_ctx(priv
);
538 return v4l2_m2m_dqbuf(file
, ctx
->m2m_ctx
, buf
);
541 static int vidioc_streamon(struct file
*file
, void *priv
,
542 enum v4l2_buf_type type
)
544 struct coda_ctx
*ctx
= fh_to_ctx(priv
);
546 return v4l2_m2m_streamon(file
, ctx
->m2m_ctx
, type
);
549 static int vidioc_streamoff(struct file
*file
, void *priv
,
550 enum v4l2_buf_type type
)
552 struct coda_ctx
*ctx
= fh_to_ctx(priv
);
554 return v4l2_m2m_streamoff(file
, ctx
->m2m_ctx
, type
);
557 static const struct v4l2_ioctl_ops coda_ioctl_ops
= {
558 .vidioc_querycap
= vidioc_querycap
,
560 .vidioc_enum_fmt_vid_cap
= vidioc_enum_fmt_vid_cap
,
561 .vidioc_g_fmt_vid_cap
= vidioc_g_fmt
,
562 .vidioc_try_fmt_vid_cap
= vidioc_try_fmt_vid_cap
,
563 .vidioc_s_fmt_vid_cap
= vidioc_s_fmt_vid_cap
,
565 .vidioc_enum_fmt_vid_out
= vidioc_enum_fmt_vid_out
,
566 .vidioc_g_fmt_vid_out
= vidioc_g_fmt
,
567 .vidioc_try_fmt_vid_out
= vidioc_try_fmt_vid_out
,
568 .vidioc_s_fmt_vid_out
= vidioc_s_fmt_vid_out
,
570 .vidioc_reqbufs
= vidioc_reqbufs
,
571 .vidioc_querybuf
= vidioc_querybuf
,
573 .vidioc_qbuf
= vidioc_qbuf
,
574 .vidioc_dqbuf
= vidioc_dqbuf
,
576 .vidioc_streamon
= vidioc_streamon
,
577 .vidioc_streamoff
= vidioc_streamoff
,
581 * Mem-to-mem operations.
583 static void coda_device_run(void *m2m_priv
)
585 struct coda_ctx
*ctx
= m2m_priv
;
586 struct coda_q_data
*q_data_src
, *q_data_dst
;
587 struct vb2_buffer
*src_buf
, *dst_buf
;
588 struct coda_dev
*dev
= ctx
->dev
;
591 u32 picture_y
, picture_cb
, picture_cr
;
592 u32 pic_stream_buffer_addr
, pic_stream_buffer_size
;
595 src_buf
= v4l2_m2m_next_src_buf(ctx
->m2m_ctx
);
596 dst_buf
= v4l2_m2m_next_dst_buf(ctx
->m2m_ctx
);
597 q_data_src
= get_q_data(ctx
, V4L2_BUF_TYPE_VIDEO_OUTPUT
);
598 q_data_dst
= get_q_data(ctx
, V4L2_BUF_TYPE_VIDEO_CAPTURE
);
599 dst_fourcc
= q_data_dst
->fmt
->fourcc
;
601 src_buf
->v4l2_buf
.sequence
= ctx
->isequence
;
602 dst_buf
->v4l2_buf
.sequence
= ctx
->isequence
;
606 * Workaround coda firmware BUG that only marks the first
607 * frame as IDR. This is a problem for some decoders that can't
608 * recover when a frame is lost.
610 if (src_buf
->v4l2_buf
.sequence
% ctx
->params
.gop_size
) {
611 src_buf
->v4l2_buf
.flags
|= V4L2_BUF_FLAG_PFRAME
;
612 src_buf
->v4l2_buf
.flags
&= ~V4L2_BUF_FLAG_KEYFRAME
;
614 src_buf
->v4l2_buf
.flags
|= V4L2_BUF_FLAG_KEYFRAME
;
615 src_buf
->v4l2_buf
.flags
&= ~V4L2_BUF_FLAG_PFRAME
;
619 * Copy headers at the beginning of the first frame for H.264 only.
620 * In MPEG4 they are already copied by the coda.
622 if (src_buf
->v4l2_buf
.sequence
== 0) {
623 pic_stream_buffer_addr
=
624 vb2_dma_contig_plane_dma_addr(dst_buf
, 0) +
625 ctx
->vpu_header_size
[0] +
626 ctx
->vpu_header_size
[1] +
627 ctx
->vpu_header_size
[2];
628 pic_stream_buffer_size
= CODA_MAX_FRAME_SIZE
-
629 ctx
->vpu_header_size
[0] -
630 ctx
->vpu_header_size
[1] -
631 ctx
->vpu_header_size
[2];
632 memcpy(vb2_plane_vaddr(dst_buf
, 0),
633 &ctx
->vpu_header
[0][0], ctx
->vpu_header_size
[0]);
634 memcpy(vb2_plane_vaddr(dst_buf
, 0) + ctx
->vpu_header_size
[0],
635 &ctx
->vpu_header
[1][0], ctx
->vpu_header_size
[1]);
636 memcpy(vb2_plane_vaddr(dst_buf
, 0) + ctx
->vpu_header_size
[0] +
637 ctx
->vpu_header_size
[1], &ctx
->vpu_header
[2][0],
638 ctx
->vpu_header_size
[2]);
640 pic_stream_buffer_addr
=
641 vb2_dma_contig_plane_dma_addr(dst_buf
, 0);
642 pic_stream_buffer_size
= CODA_MAX_FRAME_SIZE
;
645 if (src_buf
->v4l2_buf
.flags
& V4L2_BUF_FLAG_KEYFRAME
) {
647 switch (dst_fourcc
) {
648 case V4L2_PIX_FMT_H264
:
649 quant_param
= ctx
->params
.h264_intra_qp
;
651 case V4L2_PIX_FMT_MPEG4
:
652 quant_param
= ctx
->params
.mpeg4_intra_qp
;
655 v4l2_warn(&ctx
->dev
->v4l2_dev
,
656 "cannot set intra qp, fmt not supported\n");
661 switch (dst_fourcc
) {
662 case V4L2_PIX_FMT_H264
:
663 quant_param
= ctx
->params
.h264_inter_qp
;
665 case V4L2_PIX_FMT_MPEG4
:
666 quant_param
= ctx
->params
.mpeg4_inter_qp
;
669 v4l2_warn(&ctx
->dev
->v4l2_dev
,
670 "cannot set inter qp, fmt not supported\n");
676 coda_write(dev
, 0, CODA_CMD_ENC_PIC_ROT_MODE
);
677 coda_write(dev
, quant_param
, CODA_CMD_ENC_PIC_QS
);
680 picture_y
= vb2_dma_contig_plane_dma_addr(src_buf
, 0);
681 picture_cb
= picture_y
+ q_data_src
->width
* q_data_src
->height
;
682 picture_cr
= picture_cb
+ q_data_src
->width
/ 2 *
683 q_data_src
->height
/ 2;
685 coda_write(dev
, picture_y
, CODA_CMD_ENC_PIC_SRC_ADDR_Y
);
686 coda_write(dev
, picture_cb
, CODA_CMD_ENC_PIC_SRC_ADDR_CB
);
687 coda_write(dev
, picture_cr
, CODA_CMD_ENC_PIC_SRC_ADDR_CR
);
688 coda_write(dev
, force_ipicture
<< 1 & 0x2,
689 CODA_CMD_ENC_PIC_OPTION
);
691 coda_write(dev
, pic_stream_buffer_addr
, CODA_CMD_ENC_PIC_BB_START
);
692 coda_write(dev
, pic_stream_buffer_size
/ 1024,
693 CODA_CMD_ENC_PIC_BB_SIZE
);
694 coda_command_async(ctx
, CODA_COMMAND_PIC_RUN
);
697 static int coda_job_ready(void *m2m_priv
)
699 struct coda_ctx
*ctx
= m2m_priv
;
702 * For both 'P' and 'key' frame cases 1 picture
703 * and 1 frame are needed.
705 if (!v4l2_m2m_num_src_bufs_ready(ctx
->m2m_ctx
) ||
706 !v4l2_m2m_num_dst_bufs_ready(ctx
->m2m_ctx
)) {
707 v4l2_dbg(1, coda_debug
, &ctx
->dev
->v4l2_dev
,
708 "not ready: not enough video buffers.\n");
712 /* For P frames a reference picture is needed too */
713 if ((ctx
->gopcounter
!= (ctx
->params
.gop_size
- 1)) &&
715 v4l2_dbg(1, coda_debug
, &ctx
->dev
->v4l2_dev
,
716 "not ready: reference picture not available.\n");
720 if (coda_isbusy(ctx
->dev
)) {
721 v4l2_dbg(1, coda_debug
, &ctx
->dev
->v4l2_dev
,
722 "not ready: coda is still busy.\n");
726 v4l2_dbg(1, coda_debug
, &ctx
->dev
->v4l2_dev
,
731 static void coda_job_abort(void *priv
)
733 struct coda_ctx
*ctx
= priv
;
734 struct coda_dev
*dev
= ctx
->dev
;
738 v4l2_dbg(1, coda_debug
, &ctx
->dev
->v4l2_dev
,
741 v4l2_m2m_job_finish(dev
->m2m_dev
, ctx
->m2m_ctx
);
744 static void coda_lock(void *m2m_priv
)
746 struct coda_ctx
*ctx
= m2m_priv
;
747 struct coda_dev
*pcdev
= ctx
->dev
;
748 mutex_lock(&pcdev
->dev_mutex
);
751 static void coda_unlock(void *m2m_priv
)
753 struct coda_ctx
*ctx
= m2m_priv
;
754 struct coda_dev
*pcdev
= ctx
->dev
;
755 mutex_unlock(&pcdev
->dev_mutex
);
758 static struct v4l2_m2m_ops coda_m2m_ops
= {
759 .device_run
= coda_device_run
,
760 .job_ready
= coda_job_ready
,
761 .job_abort
= coda_job_abort
,
763 .unlock
= coda_unlock
,
766 static void set_default_params(struct coda_ctx
*ctx
)
768 struct coda_dev
*dev
= ctx
->dev
;
770 ctx
->params
.codec_mode
= CODA_MODE_INVALID
;
771 ctx
->colorspace
= V4L2_COLORSPACE_REC709
;
772 ctx
->params
.framerate
= 30;
773 ctx
->reference
= NULL
;
776 /* Default formats for output and input queues */
777 ctx
->q_data
[V4L2_M2M_SRC
].fmt
= &dev
->devtype
->formats
[0];
778 ctx
->q_data
[V4L2_M2M_DST
].fmt
= &dev
->devtype
->formats
[1];
779 ctx
->q_data
[V4L2_M2M_SRC
].width
= MAX_W
;
780 ctx
->q_data
[V4L2_M2M_SRC
].height
= MAX_H
;
781 ctx
->q_data
[V4L2_M2M_SRC
].sizeimage
= (MAX_W
* MAX_H
* 3) / 2;
782 ctx
->q_data
[V4L2_M2M_DST
].width
= MAX_W
;
783 ctx
->q_data
[V4L2_M2M_DST
].height
= MAX_H
;
784 ctx
->q_data
[V4L2_M2M_DST
].sizeimage
= CODA_MAX_FRAME_SIZE
;
790 static int coda_queue_setup(struct vb2_queue
*vq
,
791 const struct v4l2_format
*fmt
,
792 unsigned int *nbuffers
, unsigned int *nplanes
,
793 unsigned int sizes
[], void *alloc_ctxs
[])
795 struct coda_ctx
*ctx
= vb2_get_drv_priv(vq
);
798 if (vq
->type
== V4L2_BUF_TYPE_VIDEO_OUTPUT
) {
799 *nbuffers
= CODA_OUTPUT_BUFS
;
801 size
= fmt
->fmt
.pix
.width
*
802 fmt
->fmt
.pix
.height
* 3 / 2;
807 *nbuffers
= CODA_CAPTURE_BUFS
;
808 size
= CODA_MAX_FRAME_SIZE
;
814 alloc_ctxs
[0] = ctx
->dev
->alloc_ctx
;
816 v4l2_dbg(1, coda_debug
, &ctx
->dev
->v4l2_dev
,
817 "get %d buffer(s) of size %d each.\n", *nbuffers
, size
);
822 static int coda_buf_prepare(struct vb2_buffer
*vb
)
824 struct coda_ctx
*ctx
= vb2_get_drv_priv(vb
->vb2_queue
);
825 struct coda_q_data
*q_data
;
827 q_data
= get_q_data(ctx
, vb
->vb2_queue
->type
);
829 if (vb2_plane_size(vb
, 0) < q_data
->sizeimage
) {
830 v4l2_warn(&ctx
->dev
->v4l2_dev
,
831 "%s data will not fit into plane (%lu < %lu)\n",
832 __func__
, vb2_plane_size(vb
, 0),
833 (long)q_data
->sizeimage
);
837 vb2_set_plane_payload(vb
, 0, q_data
->sizeimage
);
842 static void coda_buf_queue(struct vb2_buffer
*vb
)
844 struct coda_ctx
*ctx
= vb2_get_drv_priv(vb
->vb2_queue
);
845 v4l2_m2m_buf_queue(ctx
->m2m_ctx
, vb
);
848 static void coda_wait_prepare(struct vb2_queue
*q
)
850 struct coda_ctx
*ctx
= vb2_get_drv_priv(q
);
854 static void coda_wait_finish(struct vb2_queue
*q
)
856 struct coda_ctx
*ctx
= vb2_get_drv_priv(q
);
860 static int coda_start_streaming(struct vb2_queue
*q
, unsigned int count
)
862 struct coda_ctx
*ctx
= vb2_get_drv_priv(q
);
863 struct v4l2_device
*v4l2_dev
= &ctx
->dev
->v4l2_dev
;
864 u32 bitstream_buf
, bitstream_size
;
865 struct coda_dev
*dev
= ctx
->dev
;
866 struct coda_q_data
*q_data_src
, *q_data_dst
;
868 struct vb2_buffer
*buf
;
869 struct vb2_queue
*src_vq
;
876 if (q
->type
== V4L2_BUF_TYPE_VIDEO_OUTPUT
)
877 ctx
->rawstreamon
= 1;
879 ctx
->compstreamon
= 1;
881 /* Don't start the coda unless both queues are on */
882 if (!(ctx
->rawstreamon
& ctx
->compstreamon
))
885 ctx
->gopcounter
= ctx
->params
.gop_size
- 1;
887 q_data_src
= get_q_data(ctx
, V4L2_BUF_TYPE_VIDEO_OUTPUT
);
888 buf
= v4l2_m2m_next_dst_buf(ctx
->m2m_ctx
);
889 bitstream_buf
= vb2_dma_contig_plane_dma_addr(buf
, 0);
890 q_data_dst
= get_q_data(ctx
, V4L2_BUF_TYPE_VIDEO_CAPTURE
);
891 bitstream_size
= q_data_dst
->sizeimage
;
892 dst_fourcc
= q_data_dst
->fmt
->fourcc
;
894 /* Find out whether coda must encode or decode */
895 if (q_data_src
->fmt
->type
== CODA_FMT_RAW
&&
896 q_data_dst
->fmt
->type
== CODA_FMT_ENC
) {
897 ctx
->inst_type
= CODA_INST_ENCODER
;
898 } else if (q_data_src
->fmt
->type
== CODA_FMT_ENC
&&
899 q_data_dst
->fmt
->type
== CODA_FMT_RAW
) {
900 ctx
->inst_type
= CODA_INST_DECODER
;
901 v4l2_err(v4l2_dev
, "decoding not supported.\n");
904 v4l2_err(v4l2_dev
, "couldn't tell instance type.\n");
908 if (!coda_is_initialized(dev
)) {
909 v4l2_err(v4l2_dev
, "coda is not initialized.\n");
912 coda_write(dev
, ctx
->parabuf
.paddr
, CODA_REG_BIT_PARA_BUF_ADDR
);
913 coda_write(dev
, bitstream_buf
, CODA_REG_BIT_RD_PTR(ctx
->idx
));
914 coda_write(dev
, bitstream_buf
, CODA_REG_BIT_WR_PTR(ctx
->idx
));
915 switch (dev
->devtype
->product
) {
917 coda_write(dev
, CODADX6_STREAM_BUF_DYNALLOC_EN
|
918 CODADX6_STREAM_BUF_PIC_RESET
, CODA_REG_BIT_STREAM_CTRL
);
921 coda_write(dev
, CODA7_STREAM_BUF_DYNALLOC_EN
|
922 CODA7_STREAM_BUF_PIC_RESET
, CODA_REG_BIT_STREAM_CTRL
);
925 /* Configure the coda */
926 coda_write(dev
, 0xffff4c00, CODA_REG_BIT_SEARCH_RAM_BASE_ADDR
);
928 /* Could set rotation here if needed */
929 switch (dev
->devtype
->product
) {
931 value
= (q_data_src
->width
& CODADX6_PICWIDTH_MASK
) << CODADX6_PICWIDTH_OFFSET
;
934 value
= (q_data_src
->width
& CODA7_PICWIDTH_MASK
) << CODA7_PICWIDTH_OFFSET
;
936 value
|= (q_data_src
->height
& CODA_PICHEIGHT_MASK
) << CODA_PICHEIGHT_OFFSET
;
937 coda_write(dev
, value
, CODA_CMD_ENC_SEQ_SRC_SIZE
);
938 coda_write(dev
, ctx
->params
.framerate
,
939 CODA_CMD_ENC_SEQ_SRC_F_RATE
);
941 switch (dst_fourcc
) {
942 case V4L2_PIX_FMT_MPEG4
:
943 if (dev
->devtype
->product
== CODA_DX6
)
944 ctx
->params
.codec_mode
= CODADX6_MODE_ENCODE_MP4
;
946 ctx
->params
.codec_mode
= CODA7_MODE_ENCODE_MP4
;
948 coda_write(dev
, CODA_STD_MPEG4
, CODA_CMD_ENC_SEQ_COD_STD
);
949 coda_write(dev
, 0, CODA_CMD_ENC_SEQ_MP4_PARA
);
951 case V4L2_PIX_FMT_H264
:
952 if (dev
->devtype
->product
== CODA_DX6
)
953 ctx
->params
.codec_mode
= CODADX6_MODE_ENCODE_H264
;
955 ctx
->params
.codec_mode
= CODA7_MODE_ENCODE_H264
;
957 coda_write(dev
, CODA_STD_H264
, CODA_CMD_ENC_SEQ_COD_STD
);
958 coda_write(dev
, 0, CODA_CMD_ENC_SEQ_264_PARA
);
962 "dst format (0x%08x) invalid.\n", dst_fourcc
);
966 value
= (ctx
->params
.slice_max_mb
& CODA_SLICING_SIZE_MASK
) << CODA_SLICING_SIZE_OFFSET
;
967 value
|= (1 & CODA_SLICING_UNIT_MASK
) << CODA_SLICING_UNIT_OFFSET
;
968 if (ctx
->params
.slice_mode
== V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB
)
969 value
|= 1 & CODA_SLICING_MODE_MASK
;
970 coda_write(dev
, value
, CODA_CMD_ENC_SEQ_SLICE_MODE
);
971 value
= ctx
->params
.gop_size
& CODA_GOP_SIZE_MASK
;
972 coda_write(dev
, value
, CODA_CMD_ENC_SEQ_GOP_SIZE
);
974 if (ctx
->params
.bitrate
) {
975 /* Rate control enabled */
976 value
= (ctx
->params
.bitrate
& CODA_RATECONTROL_BITRATE_MASK
) << CODA_RATECONTROL_BITRATE_OFFSET
;
977 value
|= 1 & CODA_RATECONTROL_ENABLE_MASK
;
981 coda_write(dev
, value
, CODA_CMD_ENC_SEQ_RC_PARA
);
983 coda_write(dev
, 0, CODA_CMD_ENC_SEQ_RC_BUF_SIZE
);
984 coda_write(dev
, 0, CODA_CMD_ENC_SEQ_INTRA_REFRESH
);
986 coda_write(dev
, bitstream_buf
, CODA_CMD_ENC_SEQ_BB_START
);
987 coda_write(dev
, bitstream_size
/ 1024, CODA_CMD_ENC_SEQ_BB_SIZE
);
989 /* set default gamma */
990 value
= (CODA_DEFAULT_GAMMA
& CODA_GAMMA_MASK
) << CODA_GAMMA_OFFSET
;
991 coda_write(dev
, value
, CODA_CMD_ENC_SEQ_RC_GAMMA
);
993 value
= (CODA_DEFAULT_GAMMA
> 0) << CODA_OPTION_GAMMA_OFFSET
;
994 value
|= (0 & CODA_OPTION_SLICEREPORT_MASK
) << CODA_OPTION_SLICEREPORT_OFFSET
;
995 coda_write(dev
, value
, CODA_CMD_ENC_SEQ_OPTION
);
997 if (dst_fourcc
== V4L2_PIX_FMT_H264
) {
998 value
= (FMO_SLICE_SAVE_BUF_SIZE
<< 7);
999 value
|= (0 & CODA_FMOPARAM_TYPE_MASK
) << CODA_FMOPARAM_TYPE_OFFSET
;
1000 value
|= 0 & CODA_FMOPARAM_SLICENUM_MASK
;
1001 coda_write(dev
, value
, CODA_CMD_ENC_SEQ_FMO
);
1004 if (coda_command_sync(ctx
, CODA_COMMAND_SEQ_INIT
)) {
1005 v4l2_err(v4l2_dev
, "CODA_COMMAND_SEQ_INIT timeout\n");
1009 if (coda_read(dev
, CODA_RET_ENC_SEQ_SUCCESS
) == 0)
1013 * Walk the src buffer list and let the codec know the
1014 * addresses of the pictures.
1016 src_vq
= v4l2_m2m_get_vq(ctx
->m2m_ctx
, V4L2_BUF_TYPE_VIDEO_OUTPUT
);
1017 for (i
= 0; i
< src_vq
->num_buffers
; i
++) {
1020 buf
= src_vq
->bufs
[i
];
1021 p
= ctx
->parabuf
.vaddr
;
1023 p
[i
* 3] = vb2_dma_contig_plane_dma_addr(buf
, 0);
1024 p
[i
* 3 + 1] = p
[i
* 3] + q_data_src
->width
*
1026 p
[i
* 3 + 2] = p
[i
* 3 + 1] + q_data_src
->width
/ 2 *
1027 q_data_src
->height
/ 2;
1030 coda_write(dev
, src_vq
->num_buffers
, CODA_CMD_SET_FRAME_BUF_NUM
);
1031 coda_write(dev
, q_data_src
->width
, CODA_CMD_SET_FRAME_BUF_STRIDE
);
1032 if (coda_command_sync(ctx
, CODA_COMMAND_SET_FRAME_BUF
)) {
1033 v4l2_err(v4l2_dev
, "CODA_COMMAND_SET_FRAME_BUF timeout\n");
1037 /* Save stream headers */
1038 buf
= v4l2_m2m_next_dst_buf(ctx
->m2m_ctx
);
1039 switch (dst_fourcc
) {
1040 case V4L2_PIX_FMT_H264
:
1042 * Get SPS in the first frame and copy it to an
1043 * intermediate buffer.
1045 coda_write(dev
, vb2_dma_contig_plane_dma_addr(buf
, 0), CODA_CMD_ENC_HEADER_BB_START
);
1046 coda_write(dev
, bitstream_size
, CODA_CMD_ENC_HEADER_BB_SIZE
);
1047 coda_write(dev
, CODA_HEADER_H264_SPS
, CODA_CMD_ENC_HEADER_CODE
);
1048 if (coda_command_sync(ctx
, CODA_COMMAND_ENCODE_HEADER
)) {
1049 v4l2_err(v4l2_dev
, "CODA_COMMAND_ENCODE_HEADER timeout\n");
1052 ctx
->vpu_header_size
[0] = coda_read(dev
, CODA_REG_BIT_WR_PTR(ctx
->idx
)) -
1053 coda_read(dev
, CODA_CMD_ENC_HEADER_BB_START
);
1054 memcpy(&ctx
->vpu_header
[0][0], vb2_plane_vaddr(buf
, 0),
1055 ctx
->vpu_header_size
[0]);
1058 * Get PPS in the first frame and copy it to an
1059 * intermediate buffer.
1061 coda_write(dev
, vb2_dma_contig_plane_dma_addr(buf
, 0), CODA_CMD_ENC_HEADER_BB_START
);
1062 coda_write(dev
, bitstream_size
, CODA_CMD_ENC_HEADER_BB_SIZE
);
1063 coda_write(dev
, CODA_HEADER_H264_PPS
, CODA_CMD_ENC_HEADER_CODE
);
1064 if (coda_command_sync(ctx
, CODA_COMMAND_ENCODE_HEADER
)) {
1065 v4l2_err(v4l2_dev
, "CODA_COMMAND_ENCODE_HEADER timeout\n");
1068 ctx
->vpu_header_size
[1] = coda_read(dev
, CODA_REG_BIT_WR_PTR(ctx
->idx
)) -
1069 coda_read(dev
, CODA_CMD_ENC_HEADER_BB_START
);
1070 memcpy(&ctx
->vpu_header
[1][0], vb2_plane_vaddr(buf
, 0),
1071 ctx
->vpu_header_size
[1]);
1072 ctx
->vpu_header_size
[2] = 0;
1074 case V4L2_PIX_FMT_MPEG4
:
1076 * Get VOS in the first frame and copy it to an
1077 * intermediate buffer
1079 coda_write(dev
, vb2_dma_contig_plane_dma_addr(buf
, 0), CODA_CMD_ENC_HEADER_BB_START
);
1080 coda_write(dev
, bitstream_size
, CODA_CMD_ENC_HEADER_BB_SIZE
);
1081 coda_write(dev
, CODA_HEADER_MP4V_VOS
, CODA_CMD_ENC_HEADER_CODE
);
1082 if (coda_command_sync(ctx
, CODA_COMMAND_ENCODE_HEADER
)) {
1083 v4l2_err(v4l2_dev
, "CODA_COMMAND_ENCODE_HEADER timeout\n");
1086 ctx
->vpu_header_size
[0] = coda_read(dev
, CODA_REG_BIT_WR_PTR(ctx
->idx
)) -
1087 coda_read(dev
, CODA_CMD_ENC_HEADER_BB_START
);
1088 memcpy(&ctx
->vpu_header
[0][0], vb2_plane_vaddr(buf
, 0),
1089 ctx
->vpu_header_size
[0]);
1091 coda_write(dev
, vb2_dma_contig_plane_dma_addr(buf
, 0), CODA_CMD_ENC_HEADER_BB_START
);
1092 coda_write(dev
, bitstream_size
, CODA_CMD_ENC_HEADER_BB_SIZE
);
1093 coda_write(dev
, CODA_HEADER_MP4V_VIS
, CODA_CMD_ENC_HEADER_CODE
);
1094 if (coda_command_sync(ctx
, CODA_COMMAND_ENCODE_HEADER
)) {
1095 v4l2_err(v4l2_dev
, "CODA_COMMAND_ENCODE_HEADER failed\n");
1098 ctx
->vpu_header_size
[1] = coda_read(dev
, CODA_REG_BIT_WR_PTR(ctx
->idx
)) -
1099 coda_read(dev
, CODA_CMD_ENC_HEADER_BB_START
);
1100 memcpy(&ctx
->vpu_header
[1][0], vb2_plane_vaddr(buf
, 0),
1101 ctx
->vpu_header_size
[1]);
1103 coda_write(dev
, vb2_dma_contig_plane_dma_addr(buf
, 0), CODA_CMD_ENC_HEADER_BB_START
);
1104 coda_write(dev
, bitstream_size
, CODA_CMD_ENC_HEADER_BB_SIZE
);
1105 coda_write(dev
, CODA_HEADER_MP4V_VOL
, CODA_CMD_ENC_HEADER_CODE
);
1106 if (coda_command_sync(ctx
, CODA_COMMAND_ENCODE_HEADER
)) {
1107 v4l2_err(v4l2_dev
, "CODA_COMMAND_ENCODE_HEADER failed\n");
1110 ctx
->vpu_header_size
[2] = coda_read(dev
, CODA_REG_BIT_WR_PTR(ctx
->idx
)) -
1111 coda_read(dev
, CODA_CMD_ENC_HEADER_BB_START
);
1112 memcpy(&ctx
->vpu_header
[2][0], vb2_plane_vaddr(buf
, 0),
1113 ctx
->vpu_header_size
[2]);
1116 /* No more formats need to save headers at the moment */
1123 static int coda_stop_streaming(struct vb2_queue
*q
)
1125 struct coda_ctx
*ctx
= vb2_get_drv_priv(q
);
1127 if (q
->type
== V4L2_BUF_TYPE_VIDEO_OUTPUT
) {
1128 v4l2_dbg(1, coda_debug
, &ctx
->dev
->v4l2_dev
,
1129 "%s: output\n", __func__
);
1130 ctx
->rawstreamon
= 0;
1132 v4l2_dbg(1, coda_debug
, &ctx
->dev
->v4l2_dev
,
1133 "%s: capture\n", __func__
);
1134 ctx
->compstreamon
= 0;
1137 if (!ctx
->rawstreamon
&& !ctx
->compstreamon
) {
1138 v4l2_dbg(1, coda_debug
, &ctx
->dev
->v4l2_dev
,
1139 "%s: sent command 'SEQ_END' to coda\n", __func__
);
1140 if (coda_command_sync(ctx
, CODA_COMMAND_SEQ_END
)) {
1141 v4l2_err(&ctx
->dev
->v4l2_dev
,
1142 "CODA_COMMAND_SEQ_END failed\n");
1150 static struct vb2_ops coda_qops
= {
1151 .queue_setup
= coda_queue_setup
,
1152 .buf_prepare
= coda_buf_prepare
,
1153 .buf_queue
= coda_buf_queue
,
1154 .wait_prepare
= coda_wait_prepare
,
1155 .wait_finish
= coda_wait_finish
,
1156 .start_streaming
= coda_start_streaming
,
1157 .stop_streaming
= coda_stop_streaming
,
1160 static int coda_s_ctrl(struct v4l2_ctrl
*ctrl
)
1162 struct coda_ctx
*ctx
=
1163 container_of(ctrl
->handler
, struct coda_ctx
, ctrls
);
1165 v4l2_dbg(1, coda_debug
, &ctx
->dev
->v4l2_dev
,
1166 "s_ctrl: id = %d, val = %d\n", ctrl
->id
, ctrl
->val
);
1169 case V4L2_CID_MPEG_VIDEO_BITRATE
:
1170 ctx
->params
.bitrate
= ctrl
->val
/ 1000;
1172 case V4L2_CID_MPEG_VIDEO_GOP_SIZE
:
1173 ctx
->params
.gop_size
= ctrl
->val
;
1175 case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP
:
1176 ctx
->params
.h264_intra_qp
= ctrl
->val
;
1178 case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP
:
1179 ctx
->params
.h264_inter_qp
= ctrl
->val
;
1181 case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP
:
1182 ctx
->params
.mpeg4_intra_qp
= ctrl
->val
;
1184 case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP
:
1185 ctx
->params
.mpeg4_inter_qp
= ctrl
->val
;
1187 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE
:
1188 ctx
->params
.slice_mode
= ctrl
->val
;
1190 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB
:
1191 ctx
->params
.slice_max_mb
= ctrl
->val
;
1193 case V4L2_CID_MPEG_VIDEO_HEADER_MODE
:
1196 v4l2_dbg(1, coda_debug
, &ctx
->dev
->v4l2_dev
,
1197 "Invalid control, id=%d, val=%d\n",
1198 ctrl
->id
, ctrl
->val
);
1205 static struct v4l2_ctrl_ops coda_ctrl_ops
= {
1206 .s_ctrl
= coda_s_ctrl
,
1209 static int coda_ctrls_setup(struct coda_ctx
*ctx
)
1211 v4l2_ctrl_handler_init(&ctx
->ctrls
, 9);
1213 v4l2_ctrl_new_std(&ctx
->ctrls
, &coda_ctrl_ops
,
1214 V4L2_CID_MPEG_VIDEO_BITRATE
, 0, 32767000, 1, 0);
1215 v4l2_ctrl_new_std(&ctx
->ctrls
, &coda_ctrl_ops
,
1216 V4L2_CID_MPEG_VIDEO_GOP_SIZE
, 1, 60, 1, 16);
1217 v4l2_ctrl_new_std(&ctx
->ctrls
, &coda_ctrl_ops
,
1218 V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP
, 1, 51, 1, 25);
1219 v4l2_ctrl_new_std(&ctx
->ctrls
, &coda_ctrl_ops
,
1220 V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP
, 1, 51, 1, 25);
1221 v4l2_ctrl_new_std(&ctx
->ctrls
, &coda_ctrl_ops
,
1222 V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP
, 1, 31, 1, 2);
1223 v4l2_ctrl_new_std(&ctx
->ctrls
, &coda_ctrl_ops
,
1224 V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP
, 1, 31, 1, 2);
1225 v4l2_ctrl_new_std_menu(&ctx
->ctrls
, &coda_ctrl_ops
,
1226 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE
,
1227 V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB
, 0,
1228 V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB
);
1229 v4l2_ctrl_new_std(&ctx
->ctrls
, &coda_ctrl_ops
,
1230 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB
, 1, 0x3fffffff, 1, 1);
1231 v4l2_ctrl_new_std_menu(&ctx
->ctrls
, &coda_ctrl_ops
,
1232 V4L2_CID_MPEG_VIDEO_HEADER_MODE
,
1233 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME
,
1234 (1 << V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE
),
1235 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME
);
1237 if (ctx
->ctrls
.error
) {
1238 v4l2_err(&ctx
->dev
->v4l2_dev
, "control initialization error (%d)",
1243 return v4l2_ctrl_handler_setup(&ctx
->ctrls
);
1246 static int coda_queue_init(void *priv
, struct vb2_queue
*src_vq
,
1247 struct vb2_queue
*dst_vq
)
1249 struct coda_ctx
*ctx
= priv
;
1252 memset(src_vq
, 0, sizeof(*src_vq
));
1253 src_vq
->type
= V4L2_BUF_TYPE_VIDEO_OUTPUT
;
1254 src_vq
->io_modes
= VB2_MMAP
;
1255 src_vq
->drv_priv
= ctx
;
1256 src_vq
->buf_struct_size
= sizeof(struct v4l2_m2m_buffer
);
1257 src_vq
->ops
= &coda_qops
;
1258 src_vq
->mem_ops
= &vb2_dma_contig_memops
;
1260 ret
= vb2_queue_init(src_vq
);
1264 memset(dst_vq
, 0, sizeof(*dst_vq
));
1265 dst_vq
->type
= V4L2_BUF_TYPE_VIDEO_CAPTURE
;
1266 dst_vq
->io_modes
= VB2_MMAP
;
1267 dst_vq
->drv_priv
= ctx
;
1268 dst_vq
->buf_struct_size
= sizeof(struct v4l2_m2m_buffer
);
1269 dst_vq
->ops
= &coda_qops
;
1270 dst_vq
->mem_ops
= &vb2_dma_contig_memops
;
1272 return vb2_queue_init(dst_vq
);
1275 static int coda_open(struct file
*file
)
1277 struct coda_dev
*dev
= video_drvdata(file
);
1278 struct coda_ctx
*ctx
= NULL
;
1281 if (dev
->instances
>= CODA_MAX_INSTANCES
)
1284 ctx
= kzalloc(sizeof *ctx
, GFP_KERNEL
);
1288 v4l2_fh_init(&ctx
->fh
, video_devdata(file
));
1289 file
->private_data
= &ctx
->fh
;
1290 v4l2_fh_add(&ctx
->fh
);
1293 set_default_params(ctx
);
1294 ctx
->m2m_ctx
= v4l2_m2m_ctx_init(dev
->m2m_dev
, ctx
,
1296 if (IS_ERR(ctx
->m2m_ctx
)) {
1297 int ret
= PTR_ERR(ctx
->m2m_ctx
);
1299 v4l2_err(&dev
->v4l2_dev
, "%s return error (%d)\n",
1303 ret
= coda_ctrls_setup(ctx
);
1305 v4l2_err(&dev
->v4l2_dev
, "failed to setup coda controls\n");
1309 ctx
->fh
.ctrl_handler
= &ctx
->ctrls
;
1311 ctx
->parabuf
.vaddr
= dma_alloc_coherent(&dev
->plat_dev
->dev
,
1312 CODA_PARA_BUF_SIZE
, &ctx
->parabuf
.paddr
, GFP_KERNEL
);
1313 if (!ctx
->parabuf
.vaddr
) {
1314 v4l2_err(&dev
->v4l2_dev
, "failed to allocate parabuf");
1320 ctx
->idx
= dev
->instances
++;
1323 clk_prepare_enable(dev
->clk_per
);
1324 clk_prepare_enable(dev
->clk_ahb
);
1326 v4l2_dbg(1, coda_debug
, &dev
->v4l2_dev
, "Created instance %d (%p)\n",
1332 v4l2_fh_del(&ctx
->fh
);
1333 v4l2_fh_exit(&ctx
->fh
);
1338 static int coda_release(struct file
*file
)
1340 struct coda_dev
*dev
= video_drvdata(file
);
1341 struct coda_ctx
*ctx
= fh_to_ctx(file
->private_data
);
1343 v4l2_dbg(1, coda_debug
, &dev
->v4l2_dev
, "Releasing instance %p\n",
1350 dma_free_coherent(&dev
->plat_dev
->dev
, CODA_PARA_BUF_SIZE
,
1351 ctx
->parabuf
.vaddr
, ctx
->parabuf
.paddr
);
1352 v4l2_m2m_ctx_release(ctx
->m2m_ctx
);
1353 v4l2_ctrl_handler_free(&ctx
->ctrls
);
1354 clk_disable_unprepare(dev
->clk_per
);
1355 clk_disable_unprepare(dev
->clk_ahb
);
1356 v4l2_fh_del(&ctx
->fh
);
1357 v4l2_fh_exit(&ctx
->fh
);
1363 static unsigned int coda_poll(struct file
*file
,
1364 struct poll_table_struct
*wait
)
1366 struct coda_ctx
*ctx
= fh_to_ctx(file
->private_data
);
1370 ret
= v4l2_m2m_poll(file
, ctx
->m2m_ctx
, wait
);
1375 static int coda_mmap(struct file
*file
, struct vm_area_struct
*vma
)
1377 struct coda_ctx
*ctx
= fh_to_ctx(file
->private_data
);
1379 return v4l2_m2m_mmap(file
, ctx
->m2m_ctx
, vma
);
1382 static const struct v4l2_file_operations coda_fops
= {
1383 .owner
= THIS_MODULE
,
1385 .release
= coda_release
,
1387 .unlocked_ioctl
= video_ioctl2
,
1391 static irqreturn_t
coda_irq_handler(int irq
, void *data
)
1393 struct vb2_buffer
*src_buf
, *dst_buf
, *tmp_buf
;
1394 struct coda_dev
*dev
= data
;
1395 u32 wr_ptr
, start_ptr
;
1396 struct coda_ctx
*ctx
;
1398 /* read status register to attend the IRQ */
1399 coda_read(dev
, CODA_REG_BIT_INT_STATUS
);
1400 coda_write(dev
, CODA_REG_BIT_INT_CLEAR_SET
,
1401 CODA_REG_BIT_INT_CLEAR
);
1403 ctx
= v4l2_m2m_get_curr_priv(dev
->m2m_dev
);
1405 v4l2_err(&dev
->v4l2_dev
, "Instance released before the end of transaction\n");
1409 if (ctx
->aborting
) {
1410 v4l2_dbg(1, coda_debug
, &ctx
->dev
->v4l2_dev
,
1411 "task has been aborted\n");
1415 if (coda_isbusy(ctx
->dev
)) {
1416 v4l2_dbg(1, coda_debug
, &ctx
->dev
->v4l2_dev
,
1417 "coda is still busy!!!!\n");
1421 src_buf
= v4l2_m2m_next_src_buf(ctx
->m2m_ctx
);
1422 dst_buf
= v4l2_m2m_next_dst_buf(ctx
->m2m_ctx
);
1424 /* Get results from the coda */
1425 coda_read(dev
, CODA_RET_ENC_PIC_TYPE
);
1426 start_ptr
= coda_read(dev
, CODA_CMD_ENC_PIC_BB_START
);
1427 wr_ptr
= coda_read(dev
, CODA_REG_BIT_WR_PTR(ctx
->idx
));
1428 /* Calculate bytesused field */
1429 if (dst_buf
->v4l2_buf
.sequence
== 0) {
1430 dst_buf
->v4l2_planes
[0].bytesused
= (wr_ptr
- start_ptr
) +
1431 ctx
->vpu_header_size
[0] +
1432 ctx
->vpu_header_size
[1] +
1433 ctx
->vpu_header_size
[2];
1435 dst_buf
->v4l2_planes
[0].bytesused
= (wr_ptr
- start_ptr
);
1438 v4l2_dbg(1, coda_debug
, &ctx
->dev
->v4l2_dev
, "frame size = %u\n",
1439 wr_ptr
- start_ptr
);
1441 coda_read(dev
, CODA_RET_ENC_PIC_SLICE_NUM
);
1442 coda_read(dev
, CODA_RET_ENC_PIC_FLAG
);
1444 if (src_buf
->v4l2_buf
.flags
& V4L2_BUF_FLAG_KEYFRAME
) {
1445 dst_buf
->v4l2_buf
.flags
|= V4L2_BUF_FLAG_KEYFRAME
;
1446 dst_buf
->v4l2_buf
.flags
&= ~V4L2_BUF_FLAG_PFRAME
;
1448 dst_buf
->v4l2_buf
.flags
|= V4L2_BUF_FLAG_PFRAME
;
1449 dst_buf
->v4l2_buf
.flags
&= ~V4L2_BUF_FLAG_KEYFRAME
;
1452 /* Free previous reference picture if available */
1453 if (ctx
->reference
) {
1454 v4l2_m2m_buf_done(ctx
->reference
, VB2_BUF_STATE_DONE
);
1455 ctx
->reference
= NULL
;
1459 * For the last frame of the gop we don't need to save
1460 * a reference picture.
1462 v4l2_m2m_dst_buf_remove(ctx
->m2m_ctx
);
1463 tmp_buf
= v4l2_m2m_src_buf_remove(ctx
->m2m_ctx
);
1464 if (ctx
->gopcounter
== 0)
1465 v4l2_m2m_buf_done(src_buf
, VB2_BUF_STATE_DONE
);
1467 ctx
->reference
= tmp_buf
;
1469 v4l2_m2m_buf_done(dst_buf
, VB2_BUF_STATE_DONE
);
1472 if (ctx
->gopcounter
< 0)
1473 ctx
->gopcounter
= ctx
->params
.gop_size
- 1;
1475 v4l2_dbg(1, coda_debug
, &dev
->v4l2_dev
,
1476 "job finished: encoding frame (%d) (%s)\n",
1477 dst_buf
->v4l2_buf
.sequence
,
1478 (dst_buf
->v4l2_buf
.flags
& V4L2_BUF_FLAG_KEYFRAME
) ?
1479 "KEYFRAME" : "PFRAME");
1481 v4l2_m2m_job_finish(ctx
->dev
->m2m_dev
, ctx
->m2m_ctx
);
1486 static u32 coda_supported_firmwares
[] = {
1487 CODA_FIRMWARE_VERNUM(CODA_DX6
, 2, 2, 5),
1490 static bool coda_firmware_supported(u32 vernum
)
1494 for (i
= 0; i
< ARRAY_SIZE(coda_supported_firmwares
); i
++)
1495 if (vernum
== coda_supported_firmwares
[i
])
1500 static char *coda_product_name(int product
)
1508 snprintf(buf
, sizeof(buf
), "(0x%04x)", product
);
1513 static int coda_hw_init(struct coda_dev
*dev
, const struct firmware
*fw
)
1515 u16 product
, major
, minor
, release
;
1520 clk_prepare_enable(dev
->clk_per
);
1521 clk_prepare_enable(dev
->clk_ahb
);
1523 /* Copy the whole firmware image to the code buffer */
1524 memcpy(dev
->codebuf
.vaddr
, fw
->data
, fw
->size
);
1526 * Copy the first CODA_ISRAM_SIZE in the internal SRAM.
1527 * This memory seems to be big-endian here, which is weird, since
1528 * the internal ARM processor of the coda is little endian.
1529 * Data in this SRAM survives a reboot.
1531 p
= (u16
*)fw
->data
;
1532 for (i
= 0; i
< (CODA_ISRAM_SIZE
/ 2); i
++) {
1533 data
= CODA_DOWN_ADDRESS_SET(i
) |
1534 CODA_DOWN_DATA_SET(p
[i
^ 1]);
1535 coda_write(dev
, data
, CODA_REG_BIT_CODE_DOWN
);
1537 release_firmware(fw
);
1539 /* Tell the BIT where to find everything it needs */
1540 coda_write(dev
, dev
->workbuf
.paddr
,
1541 CODA_REG_BIT_WORK_BUF_ADDR
);
1542 coda_write(dev
, dev
->codebuf
.paddr
,
1543 CODA_REG_BIT_CODE_BUF_ADDR
);
1544 coda_write(dev
, 0, CODA_REG_BIT_CODE_RUN
);
1546 /* Set default values */
1547 switch (dev
->devtype
->product
) {
1549 coda_write(dev
, CODADX6_STREAM_BUF_PIC_FLUSH
, CODA_REG_BIT_STREAM_CTRL
);
1552 coda_write(dev
, CODA7_STREAM_BUF_PIC_FLUSH
, CODA_REG_BIT_STREAM_CTRL
);
1554 coda_write(dev
, 0, CODA_REG_BIT_FRAME_MEM_CTRL
);
1555 coda_write(dev
, CODA_INT_INTERRUPT_ENABLE
,
1556 CODA_REG_BIT_INT_ENABLE
);
1558 /* Reset VPU and start processor */
1559 data
= coda_read(dev
, CODA_REG_BIT_CODE_RESET
);
1560 data
|= CODA_REG_RESET_ENABLE
;
1561 coda_write(dev
, data
, CODA_REG_BIT_CODE_RESET
);
1563 data
&= ~CODA_REG_RESET_ENABLE
;
1564 coda_write(dev
, data
, CODA_REG_BIT_CODE_RESET
);
1565 coda_write(dev
, CODA_REG_RUN_ENABLE
, CODA_REG_BIT_CODE_RUN
);
1568 coda_write(dev
, 0, CODA_CMD_FIRMWARE_VERNUM
);
1569 coda_write(dev
, CODA_REG_BIT_BUSY_FLAG
, CODA_REG_BIT_BUSY
);
1570 coda_write(dev
, 0, CODA_REG_BIT_RUN_INDEX
);
1571 coda_write(dev
, 0, CODA_REG_BIT_RUN_COD_STD
);
1572 coda_write(dev
, CODA_COMMAND_FIRMWARE_GET
, CODA_REG_BIT_RUN_COMMAND
);
1573 if (coda_wait_timeout(dev
)) {
1574 clk_disable_unprepare(dev
->clk_per
);
1575 clk_disable_unprepare(dev
->clk_ahb
);
1576 v4l2_err(&dev
->v4l2_dev
, "firmware get command error\n");
1580 /* Check we are compatible with the loaded firmware */
1581 data
= coda_read(dev
, CODA_CMD_FIRMWARE_VERNUM
);
1582 product
= CODA_FIRMWARE_PRODUCT(data
);
1583 major
= CODA_FIRMWARE_MAJOR(data
);
1584 minor
= CODA_FIRMWARE_MINOR(data
);
1585 release
= CODA_FIRMWARE_RELEASE(data
);
1587 clk_disable_unprepare(dev
->clk_per
);
1588 clk_disable_unprepare(dev
->clk_ahb
);
1590 if (product
!= dev
->devtype
->product
) {
1591 v4l2_err(&dev
->v4l2_dev
, "Wrong firmware. Hw: %s, Fw: %s,"
1592 " Version: %u.%u.%u\n",
1593 coda_product_name(dev
->devtype
->product
),
1594 coda_product_name(product
), major
, minor
, release
);
1598 v4l2_info(&dev
->v4l2_dev
, "Initialized %s.\n",
1599 coda_product_name(product
));
1601 if (coda_firmware_supported(data
)) {
1602 v4l2_info(&dev
->v4l2_dev
, "Firmware version: %u.%u.%u\n",
1603 major
, minor
, release
);
1605 v4l2_warn(&dev
->v4l2_dev
, "Unsupported firmware version: "
1606 "%u.%u.%u\n", major
, minor
, release
);
1612 static void coda_fw_callback(const struct firmware
*fw
, void *context
)
1614 struct coda_dev
*dev
= context
;
1615 struct platform_device
*pdev
= dev
->plat_dev
;
1619 v4l2_err(&dev
->v4l2_dev
, "firmware request failed\n");
1623 /* allocate auxiliary per-device code buffer for the BIT processor */
1624 dev
->codebuf
.size
= fw
->size
;
1625 dev
->codebuf
.vaddr
= dma_alloc_coherent(&pdev
->dev
, fw
->size
,
1626 &dev
->codebuf
.paddr
,
1628 if (!dev
->codebuf
.vaddr
) {
1629 dev_err(&pdev
->dev
, "failed to allocate code buffer\n");
1633 ret
= coda_hw_init(dev
, fw
);
1635 v4l2_err(&dev
->v4l2_dev
, "HW initialization failed\n");
1639 dev
->vfd
.fops
= &coda_fops
,
1640 dev
->vfd
.ioctl_ops
= &coda_ioctl_ops
;
1641 dev
->vfd
.release
= video_device_release_empty
,
1642 dev
->vfd
.lock
= &dev
->dev_mutex
;
1643 dev
->vfd
.v4l2_dev
= &dev
->v4l2_dev
;
1644 snprintf(dev
->vfd
.name
, sizeof(dev
->vfd
.name
), "%s", CODA_NAME
);
1645 video_set_drvdata(&dev
->vfd
, dev
);
1647 dev
->alloc_ctx
= vb2_dma_contig_init_ctx(&pdev
->dev
);
1648 if (IS_ERR(dev
->alloc_ctx
)) {
1649 v4l2_err(&dev
->v4l2_dev
, "Failed to alloc vb2 context\n");
1653 dev
->m2m_dev
= v4l2_m2m_init(&coda_m2m_ops
);
1654 if (IS_ERR(dev
->m2m_dev
)) {
1655 v4l2_err(&dev
->v4l2_dev
, "Failed to init mem2mem device\n");
1659 ret
= video_register_device(&dev
->vfd
, VFL_TYPE_GRABBER
, 0);
1661 v4l2_err(&dev
->v4l2_dev
, "Failed to register video device\n");
1664 v4l2_info(&dev
->v4l2_dev
, "codec registered as /dev/video%d\n",
1670 v4l2_m2m_release(dev
->m2m_dev
);
1672 vb2_dma_contig_cleanup_ctx(dev
->alloc_ctx
);
1675 static int coda_firmware_request(struct coda_dev
*dev
)
1677 char *fw
= dev
->devtype
->firmware
;
1679 dev_dbg(&dev
->plat_dev
->dev
, "requesting firmware '%s' for %s\n", fw
,
1680 coda_product_name(dev
->devtype
->product
));
1682 return request_firmware_nowait(THIS_MODULE
, true,
1683 fw
, &dev
->plat_dev
->dev
, GFP_KERNEL
, dev
, coda_fw_callback
);
1686 enum coda_platform
{
1690 static struct coda_devtype coda_devdata
[] = {
1692 .firmware
= "v4l-codadx6-imx27.bin",
1693 .product
= CODA_DX6
,
1694 .formats
= codadx6_formats
,
1695 .num_formats
= ARRAY_SIZE(codadx6_formats
),
1699 static struct platform_device_id coda_platform_ids
[] = {
1700 { .name
= "coda-imx27", .driver_data
= CODA_IMX27
},
1703 MODULE_DEVICE_TABLE(platform
, coda_platform_ids
);
1706 static const struct of_device_id coda_dt_ids
[] = {
1707 { .compatible
= "fsl,imx27-vpu", .data
= &coda_platform_ids
[CODA_IMX27
] },
1710 MODULE_DEVICE_TABLE(of
, coda_dt_ids
);
1713 static int __devinit
coda_probe(struct platform_device
*pdev
)
1715 const struct of_device_id
*of_id
=
1716 of_match_device(of_match_ptr(coda_dt_ids
), &pdev
->dev
);
1717 const struct platform_device_id
*pdev_id
;
1718 struct coda_dev
*dev
;
1719 struct resource
*res
;
1722 dev
= devm_kzalloc(&pdev
->dev
, sizeof *dev
, GFP_KERNEL
);
1724 dev_err(&pdev
->dev
, "Not enough memory for %s\n",
1729 spin_lock_init(&dev
->irqlock
);
1731 dev
->plat_dev
= pdev
;
1732 dev
->clk_per
= devm_clk_get(&pdev
->dev
, "per");
1733 if (IS_ERR(dev
->clk_per
)) {
1734 dev_err(&pdev
->dev
, "Could not get per clock\n");
1735 return PTR_ERR(dev
->clk_per
);
1738 dev
->clk_ahb
= devm_clk_get(&pdev
->dev
, "ahb");
1739 if (IS_ERR(dev
->clk_ahb
)) {
1740 dev_err(&pdev
->dev
, "Could not get ahb clock\n");
1741 return PTR_ERR(dev
->clk_ahb
);
1744 /* Get memory for physical registers */
1745 res
= platform_get_resource(pdev
, IORESOURCE_MEM
, 0);
1747 dev_err(&pdev
->dev
, "failed to get memory region resource\n");
1751 if (devm_request_mem_region(&pdev
->dev
, res
->start
,
1752 resource_size(res
), CODA_NAME
) == NULL
) {
1753 dev_err(&pdev
->dev
, "failed to request memory region\n");
1756 dev
->regs_base
= devm_ioremap(&pdev
->dev
, res
->start
,
1757 resource_size(res
));
1758 if (!dev
->regs_base
) {
1759 dev_err(&pdev
->dev
, "failed to ioremap address region\n");
1764 irq
= platform_get_irq(pdev
, 0);
1766 dev_err(&pdev
->dev
, "failed to get irq resource\n");
1770 if (devm_request_irq(&pdev
->dev
, irq
, coda_irq_handler
,
1771 0, CODA_NAME
, dev
) < 0) {
1772 dev_err(&pdev
->dev
, "failed to request irq\n");
1776 ret
= v4l2_device_register(&pdev
->dev
, &dev
->v4l2_dev
);
1780 mutex_init(&dev
->dev_mutex
);
1782 pdev_id
= of_id
? of_id
->data
: platform_get_device_id(pdev
);
1785 dev
->devtype
= of_id
->data
;
1786 } else if (pdev_id
) {
1787 dev
->devtype
= &coda_devdata
[pdev_id
->driver_data
];
1789 v4l2_device_unregister(&dev
->v4l2_dev
);
1793 /* allocate auxiliary per-device buffers for the BIT processor */
1794 switch (dev
->devtype
->product
) {
1796 dev
->workbuf
.size
= CODADX6_WORK_BUF_SIZE
;
1799 dev
->workbuf
.size
= CODA7_WORK_BUF_SIZE
;
1801 dev
->workbuf
.vaddr
= dma_alloc_coherent(&pdev
->dev
, dev
->workbuf
.size
,
1802 &dev
->workbuf
.paddr
,
1804 if (!dev
->workbuf
.vaddr
) {
1805 dev_err(&pdev
->dev
, "failed to allocate work buffer\n");
1806 v4l2_device_unregister(&dev
->v4l2_dev
);
1810 platform_set_drvdata(pdev
, dev
);
1812 return coda_firmware_request(dev
);
1815 static int coda_remove(struct platform_device
*pdev
)
1817 struct coda_dev
*dev
= platform_get_drvdata(pdev
);
1819 video_unregister_device(&dev
->vfd
);
1821 v4l2_m2m_release(dev
->m2m_dev
);
1823 vb2_dma_contig_cleanup_ctx(dev
->alloc_ctx
);
1824 v4l2_device_unregister(&dev
->v4l2_dev
);
1825 if (dev
->codebuf
.vaddr
)
1826 dma_free_coherent(&pdev
->dev
, dev
->codebuf
.size
,
1827 &dev
->codebuf
.vaddr
, dev
->codebuf
.paddr
);
1828 if (dev
->workbuf
.vaddr
)
1829 dma_free_coherent(&pdev
->dev
, dev
->workbuf
.size
, &dev
->workbuf
.vaddr
,
1830 dev
->workbuf
.paddr
);
1834 static struct platform_driver coda_driver
= {
1835 .probe
= coda_probe
,
1836 .remove
= __devexit_p(coda_remove
),
1839 .owner
= THIS_MODULE
,
1840 .of_match_table
= of_match_ptr(coda_dt_ids
),
1842 .id_table
= coda_platform_ids
,
1845 module_platform_driver(coda_driver
);
1847 MODULE_LICENSE("GPL");
1848 MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
1849 MODULE_DESCRIPTION("Coda multi-standard codec V4L2 driver");