From patchwork Mon Feb 22 16:10:09 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pawel Osciak X-Patchwork-Id: 81175 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.3) with ESMTP id o1MGASt0029767 for ; Mon, 22 Feb 2010 16:10:28 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754269Ab0BVQK0 (ORCPT ); Mon, 22 Feb 2010 11:10:26 -0500 Received: from mailout2.w1.samsung.com ([210.118.77.12]:55423 "EHLO mailout2.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754090Ab0BVQKY (ORCPT ); Mon, 22 Feb 2010 11:10:24 -0500 Received: from eu_spt1 (mailout2.w1.samsung.com [210.118.77.12]) by mailout2.w1.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTP id <0KY900COS3L8H9@mailout2.w1.samsung.com> for linux-media@vger.kernel.org; Mon, 22 Feb 2010 16:10:20 +0000 (GMT) Received: from linux.samsung.com ([106.116.38.10]) by spt1.w1.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTPA id <0KY900LLP3L7FK@spt1.w1.samsung.com> for linux-media@vger.kernel.org; Mon, 22 Feb 2010 16:10:20 +0000 (GMT) Received: from localhost.localdomain (unknown [106.116.37.23]) by linux.samsung.com (Postfix) with ESMTP id 838CD270053; Mon, 22 Feb 2010 16:59:25 +0100 (CET) Date: Mon, 22 Feb 2010 17:10:09 +0100 From: Pawel Osciak Subject: [PATCH v1 4/4] v4l: vivi: add 2- and 3-planar YCbCr422 In-reply-to: <1266855010-2198-1-git-send-email-p.osciak@samsung.com> To: linux-media@vger.kernel.org Cc: p.osciak@samsung.com, m.szyprowski@samsung.com, kyungmin.park@samsung.com, hverkuil@xs4all.nl, m-karicheri2@ti.com Message-id: <1266855010-2198-5-git-send-email-p.osciak@samsung.com> MIME-version: 1.0 X-Mailer: git-send-email 1.6.5.3 Content-type: TEXT/PLAIN Content-transfer-encoding: 7BIT References: <1266855010-2198-1-git-send-email-p.osciak@samsung.com> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Mon, 22 Feb 2010 16:10:28 +0000 (UTC) diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c index 37632a0..bc1ec0d 100644 --- a/drivers/media/video/vivi.c +++ b/drivers/media/video/vivi.c @@ -132,6 +132,9 @@ struct vivi_fmt { char *name; u32 fourcc; /* v4l2 format id */ int depth; + unsigned int num_planes; + unsigned int plane_w_shr; + unsigned int plane_h_shr; }; static struct vivi_fmt formats[] = { @@ -139,31 +142,53 @@ static struct vivi_fmt formats[] = { .name = "4:2:2, packed, YUYV", .fourcc = V4L2_PIX_FMT_YUYV, .depth = 16, + .num_planes = 1, }, { .name = "4:2:2, packed, UYVY", .fourcc = V4L2_PIX_FMT_UYVY, .depth = 16, + .num_planes = 1, }, { .name = "RGB565 (LE)", .fourcc = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */ .depth = 16, + .num_planes = 1, }, { .name = "RGB565 (BE)", .fourcc = V4L2_PIX_FMT_RGB565X, /* rrrrrggg gggbbbbb */ .depth = 16, + .num_planes = 1, }, { .name = "RGB555 (LE)", .fourcc = V4L2_PIX_FMT_RGB555, /* gggbbbbb arrrrrgg */ .depth = 16, + .num_planes = 1, }, { .name = "RGB555 (BE)", .fourcc = V4L2_PIX_FMT_RGB555X, /* arrrrrgg gggbbbbb */ .depth = 16, + .num_planes = 1, + }, + { + .name = "YUV 4:2:2, 3-planar", + .fourcc = V4L2_PIX_FMT_YUV422PM, + .depth = 16, + .num_planes = 3, + .plane_w_shr = 1, + .plane_h_shr = 0, + }, + { + .name = "YUV 4:2:2, 2-planar", + .fourcc = V4L2_PIX_FMT_NV16M, + .depth = 16, + .num_planes = 2, + .plane_w_shr = 1, + .plane_h_shr = 0, }, }; @@ -361,6 +386,8 @@ static void precalculate_bars(struct vivi_fh *fh) switch (fh->fmt->fourcc) { case V4L2_PIX_FMT_YUYV: case V4L2_PIX_FMT_UYVY: + case V4L2_PIX_FMT_YUV422PM: + case V4L2_PIX_FMT_NV16M: is_yuv = 1; break; case V4L2_PIX_FMT_RGB565: @@ -410,6 +437,8 @@ static void gen_twopix(struct vivi_fh *fh, unsigned char *buf, int colorpos) switch (fh->fmt->fourcc) { case V4L2_PIX_FMT_YUYV: + case V4L2_PIX_FMT_YUV422PM: + case V4L2_PIX_FMT_NV16M: switch (color) { case 0: case 2: @@ -558,30 +587,58 @@ end: static void vivi_fillbuff(struct vivi_fh *fh, struct vivi_buffer *buf) { struct vivi_dev *dev = fh->dev; - int h , pos = 0; + int i, x, h, curr_plane = 0, pos = 0; int hmax = buf->vb.height; int wmax = buf->vb.width; struct timeval ts; - char *tmpbuf; - void *vbuf = videobuf_to_vmalloc(&buf->vb); + char *tmpbuf, *p_tmpbuf; + char *vbuf[VIDEO_MAX_PLANES]; + + for (i = 0; i < fh->fmt->num_planes; ++i) { + vbuf[i] = videobuf_plane_to_vmalloc(&buf->vb, i); + if (!vbuf[i]) { + dprintk(dev, 1, "Failed acquiring vaddr for a plane\n"); + return; + } + } - if (!vbuf) - return; + if (fh->fmt->num_planes > 1) { + tmpbuf = kmalloc(wmax * 2, GFP_ATOMIC); + if (!tmpbuf) + return; + + for (h = 0; h < hmax; h++) { + gen_line(fh, tmpbuf, 0, wmax, hmax, h, dev->mv_count, + dev->timestr); + p_tmpbuf = tmpbuf; + + for (x = 0; x < wmax; ++x) { + *(vbuf[0]++) = *p_tmpbuf++; + *(vbuf[curr_plane + 1]++) = *p_tmpbuf++; + if (V4L2_PIX_FMT_YUV422PM == fh->fmt->fourcc) + curr_plane = !curr_plane; + } + } - tmpbuf = kmalloc(wmax * 2, GFP_ATOMIC); - if (!tmpbuf) - return; + dev->mv_count++; - for (h = 0; h < hmax; h++) { - gen_line(fh, tmpbuf, 0, wmax, hmax, h, dev->mv_count, - dev->timestr); - memcpy(vbuf + pos, tmpbuf, wmax * 2); - pos += wmax*2; - } + kfree(tmpbuf); + } else { + tmpbuf = kmalloc(wmax * 2, GFP_ATOMIC); + if (!tmpbuf) + return; + + for (h = 0; h < hmax; h++) { + gen_line(fh, tmpbuf, 0, wmax, hmax, h, dev->mv_count, + dev->timestr); + memcpy(vbuf[0] + pos, tmpbuf, wmax * 2); + pos += wmax*2; + } - dev->mv_count++; + dev->mv_count++; - kfree(tmpbuf); + kfree(tmpbuf); + } /* Updates stream time */ @@ -708,8 +765,6 @@ static int vivi_start_thread(struct vivi_fh *fh) dma_q->frame = 0; dma_q->ini_jiffies = jiffies; - dprintk(dev, 1, "%s\n", __func__); - dma_q->kthread = kthread_run(vivi_thread, fh, "vivi"); if (IS_ERR(dma_q->kthread)) { @@ -719,7 +774,6 @@ static int vivi_start_thread(struct vivi_fh *fh) /* Wakes thread */ wake_up_interruptible(&dma_q->wq); - dprintk(dev, 1, "returning from %s\n", __func__); return 0; } @@ -738,22 +792,66 @@ static void vivi_stop_thread(struct vivi_dmaqueue *dma_q) /* ------------------------------------------------------------------ Videobuf operations ------------------------------------------------------------------*/ -static int -buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size) +static unsigned long get_plane_size(struct vivi_fh *fh, unsigned int plane) { - struct vivi_fh *fh = vq->priv_data; - struct vivi_dev *dev = fh->dev; + unsigned long plane_size = 0; + + if (plane >= fh->fmt->num_planes) + return 0; + + if (1 == fh->fmt->num_planes) { + plane_size = fh->width * fh->height * 2; + } else { + if (0 == plane) { + plane_size = fh->width * fh->height; + } else { + plane_size = (fh->width >> 1) * fh->height; + if (2 == fh->fmt->num_planes) + plane_size *= 2; + } + } + + return plane_size; +} +static int buffer_negotiate(struct videobuf_queue *vq, unsigned int *buf_count, + unsigned int *plane_count) +{ + struct vivi_fh *fh = vq->priv_data; + struct vivi_dev *dev = fh->dev; + unsigned int buf_size = 0; + unsigned int i; + + *plane_count = fh->fmt->num_planes; + + if (0 == *buf_count) + *buf_count = 32; + + for (i = 0; i < fh->fmt->num_planes; ++i) + buf_size += get_plane_size(fh, i); + + while (buf_size * *buf_count > vid_limit * 1024 * 1024) + (*buf_count)--; + + dprintk(dev, 1, "%s, buffer count=%d, plane count=%d\n", + __func__, *buf_count, *plane_count); - *size = fh->width*fh->height*2; + return 0; +} - if (0 == *count) - *count = 32; +static int buffer_setup_plane(struct videobuf_queue *vq, unsigned int plane, + unsigned int *plane_size) +{ + struct vivi_fh *fh = vq->priv_data; + struct vivi_dev *dev = fh->dev; - while (*size * *count > vid_limit * 1024 * 1024) - (*count)--; + if (plane >= fh->fmt->num_planes) { + dprintk(dev, 1, "%s, invalid plane=%d\n", __func__, plane); + return -EINVAL; + } - dprintk(dev, 1, "%s, count=%d, size=%d\n", __func__, - *count, *size); + *plane_size = get_plane_size(fh, plane); + dprintk(dev, 1, "%s, plane=%d, size=%d\n", + __func__, plane, *plane_size); return 0; } @@ -783,6 +881,7 @@ buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, struct vivi_dev *dev = fh->dev; struct vivi_buffer *buf = container_of(vb, struct vivi_buffer, vb); int rc; + unsigned int i; dprintk(dev, 1, "%s, field=%d\n", __func__, field); @@ -792,9 +891,17 @@ buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, fh->height < 32 || fh->height > norm_maxh()) return -EINVAL; - buf->vb.size = fh->width*fh->height*2; - if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) - return -EINVAL; + for (i = 0; i < fh->fmt->num_planes; ++i) { + buf->vb.planes[i].size = get_plane_size(fh, i); + + if (0 != buf->vb.planes[i].baddr + && buf->vb.planes[i].bsize < buf->vb.planes[i].size) { + dprintk(dev, 1, "%s, invalid plane %u size: (%d<%lu)\n", + __func__, i, buf->vb.planes[i].bsize, + buf->vb.planes[i].size); + return -EINVAL; + } + } /* These properties only change when queue is idle, see s_fmt */ buf->fmt = fh->fmt; @@ -846,7 +953,8 @@ static void buffer_release(struct videobuf_queue *vq, } static struct videobuf_queue_ops vivi_video_qops = { - .buf_setup = buffer_setup, + .buf_negotiate = buffer_negotiate, + .buf_setup_plane = buffer_setup_plane, .buf_prepare = buffer_prepare, .buf_queue = buffer_queue, .buf_release = buffer_release, @@ -948,8 +1056,9 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, { struct vivi_fh *fh = priv; struct videobuf_queue *q = &fh->vb_vidq; + int ret; - int ret = vidioc_try_fmt_vid_cap(file, fh, f); + ret = vidioc_try_fmt_vid_cap(file, fh, f); if (ret < 0) return ret; diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index bf3f33d..fbce9d7 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -314,6 +314,8 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_UYVY v4l2_fourcc('U', 'Y', 'V', 'Y') /* 16 YUV 4:2:2 */ #define V4L2_PIX_FMT_VYUY v4l2_fourcc('V', 'Y', 'U', 'Y') /* 16 YUV 4:2:2 */ #define V4L2_PIX_FMT_YUV422P v4l2_fourcc('4', '2', '2', 'P') /* 16 YVU422 planar */ +#define V4L2_PIX_FMT_YUV422PM v4l2_fourcc('4', '2', '2', 'M') /* 16 YUV422 multiplane */ + #define V4L2_PIX_FMT_YUV411P v4l2_fourcc('4', '1', '1', 'P') /* 16 YVU411 planar */ #define V4L2_PIX_FMT_Y41P v4l2_fourcc('Y', '4', '1', 'P') /* 12 YUV 4:1:1 */ #define V4L2_PIX_FMT_YUV444 v4l2_fourcc('Y', '4', '4', '4') /* 16 xxxxyyyy uuuuvvvv */ @@ -329,6 +331,7 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_NV12 v4l2_fourcc('N', 'V', '1', '2') /* 12 Y/CbCr 4:2:0 */ #define V4L2_PIX_FMT_NV21 v4l2_fourcc('N', 'V', '2', '1') /* 12 Y/CrCb 4:2:0 */ #define V4L2_PIX_FMT_NV16 v4l2_fourcc('N', 'V', '1', '6') /* 16 Y/CbCr 4:2:2 */ +#define V4L2_PIX_FMT_NV16M v4l2_fourcc('N', 'M', '1', '6') /* 16 Y/CbCr multiplane 4:2:2 */ #define V4L2_PIX_FMT_NV61 v4l2_fourcc('N', 'V', '6', '1') /* 16 Y/CrCb 4:2:2 */ /* Bayer formats - see http://www.siliconimaging.com/RGB%20Bayer.htm */