From 7615f4bcfae51a4cc5a5ad9610c02b735496a96b Mon Sep 17 00:00:00 2001 From: Antti Palosaari Date: Sun, 17 May 2015 08:34:37 -0300 Subject: [PATCH] [media] vivid: SDR cap add 'CU08' Complex U8 format Add complex unsigned 8-bit sample format for SDR capture. Signed-off-by: Antti Palosaari Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/vivid/vivid-core.c | 7 +- drivers/media/platform/vivid/vivid-core.h | 2 + drivers/media/platform/vivid/vivid-sdr-cap.c | 96 ++++++++++++++++++++++++---- drivers/media/platform/vivid/vivid-sdr-cap.h | 2 + 4 files changed, 94 insertions(+), 13 deletions(-) diff --git a/drivers/media/platform/vivid/vivid-core.c b/drivers/media/platform/vivid/vivid-core.c index d6caeeb..a047b47 100644 --- a/drivers/media/platform/vivid/vivid-core.c +++ b/drivers/media/platform/vivid/vivid-core.c @@ -559,8 +559,8 @@ static const struct v4l2_ioctl_ops vivid_ioctl_ops = { .vidioc_enum_fmt_sdr_cap = vidioc_enum_fmt_sdr_cap, .vidioc_g_fmt_sdr_cap = vidioc_g_fmt_sdr_cap, - .vidioc_try_fmt_sdr_cap = vidioc_g_fmt_sdr_cap, - .vidioc_s_fmt_sdr_cap = vidioc_g_fmt_sdr_cap, + .vidioc_try_fmt_sdr_cap = vidioc_try_fmt_sdr_cap, + .vidioc_s_fmt_sdr_cap = vidioc_s_fmt_sdr_cap, .vidioc_overlay = vidioc_overlay, .vidioc_enum_framesizes = vidioc_enum_framesizes, @@ -977,6 +977,9 @@ static int vivid_create_instance(struct platform_device *pdev, int inst) dev->radio_tx_subchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_RDS; dev->sdr_adc_freq = 300000; dev->sdr_fm_freq = 50000000; + dev->sdr_pixelformat = V4L2_SDR_FMT_CU8; + dev->sdr_buffersize = SDR_CAP_SAMPLES_PER_BUF * 2; + dev->edid_max_blocks = dev->edid_blocks = 2; memcpy(dev->edid, vivid_hdmi_edid, sizeof(vivid_hdmi_edid)); ktime_get_ts(&dev->radio_rds_init_ts); diff --git a/drivers/media/platform/vivid/vivid-core.h b/drivers/media/platform/vivid/vivid-core.h index bf26173..aa1b523 100644 --- a/drivers/media/platform/vivid/vivid-core.h +++ b/drivers/media/platform/vivid/vivid-core.h @@ -446,6 +446,8 @@ struct vivid_dev { /* SDR capture */ struct vb2_queue vb_sdr_cap_q; struct list_head sdr_cap_active; + u32 sdr_pixelformat; /* v4l2 format id */ + unsigned sdr_buffersize; unsigned sdr_adc_freq; unsigned sdr_fm_freq; int sdr_fixp_src_phase; diff --git a/drivers/media/platform/vivid/vivid-sdr-cap.c b/drivers/media/platform/vivid/vivid-sdr-cap.c index caf1316..d2f2188 100644 --- a/drivers/media/platform/vivid/vivid-sdr-cap.c +++ b/drivers/media/platform/vivid/vivid-sdr-cap.c @@ -33,6 +33,25 @@ #include "vivid-ctrls.h" #include "vivid-sdr-cap.h" +/* stream formats */ +struct vivid_format { + u32 pixelformat; + u32 buffersize; +}; + +/* format descriptions for capture and preview */ +static struct vivid_format formats[] = { + { + .pixelformat = V4L2_SDR_FMT_CU8, + .buffersize = SDR_CAP_SAMPLES_PER_BUF * 2, + }, { + .pixelformat = V4L2_SDR_FMT_CS8, + .buffersize = SDR_CAP_SAMPLES_PER_BUF * 2, + }, +}; + +static const unsigned int NUM_FORMATS = ARRAY_SIZE(formats); + static const struct v4l2_frequency_band bands_adc[] = { { .tuner = 0, @@ -409,21 +428,63 @@ int vivid_sdr_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt) int vidioc_enum_fmt_sdr_cap(struct file *file, void *fh, struct v4l2_fmtdesc *f) { - if (f->index) + if (f->index >= ARRAY_SIZE(formats)) return -EINVAL; - f->pixelformat = V4L2_SDR_FMT_CU8; - strlcpy(f->description, "IQ U8", sizeof(f->description)); + f->pixelformat = formats[f->index].pixelformat; return 0; } int vidioc_g_fmt_sdr_cap(struct file *file, void *fh, struct v4l2_format *f) { - f->fmt.sdr.pixelformat = V4L2_SDR_FMT_CU8; - f->fmt.sdr.buffersize = SDR_CAP_SAMPLES_PER_BUF * 2; + struct vivid_dev *dev = video_drvdata(file); + + f->fmt.sdr.pixelformat = dev->sdr_pixelformat; + f->fmt.sdr.buffersize = dev->sdr_buffersize; memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); return 0; } +int vidioc_s_fmt_sdr_cap(struct file *file, void *fh, struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + struct vb2_queue *q = &dev->vb_sdr_cap_q; + int i; + + if (vb2_is_busy(q)) + return -EBUSY; + + memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); + for (i = 0; i < ARRAY_SIZE(formats); i++) { + if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { + dev->sdr_pixelformat = formats[i].pixelformat; + dev->sdr_buffersize = formats[i].buffersize; + f->fmt.sdr.buffersize = formats[i].buffersize; + return 0; + } + } + dev->sdr_pixelformat = formats[0].pixelformat; + dev->sdr_buffersize = formats[0].buffersize; + f->fmt.sdr.pixelformat = formats[0].pixelformat; + f->fmt.sdr.buffersize = formats[0].buffersize; + return 0; +} + +int vidioc_try_fmt_sdr_cap(struct file *file, void *fh, struct v4l2_format *f) +{ + int i; + + memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); + for (i = 0; i < ARRAY_SIZE(formats); i++) { + if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { + f->fmt.sdr.buffersize = formats[i].buffersize; + return 0; + } + } + f->fmt.sdr.pixelformat = formats[0].pixelformat; + f->fmt.sdr.buffersize = formats[0].buffersize; + return 0; +} + #define FIXP_N (15) #define FIXP_FRAC (1 << FIXP_N) #define FIXP_2PI ((int)(2 * 3.141592653589 * FIXP_FRAC)) @@ -477,11 +538,24 @@ void vivid_sdr_cap_process(struct vivid_dev *dev, struct vivid_buffer *buf) fixp_i >>= (31 - FIXP_N); fixp_q >>= (31 - FIXP_N); - /* convert 'fixp float' to u8 */ - /* u8 = X * 127.5f + 127.5f; where X is float [-1.0 / +1.0] */ - fixp_i = fixp_i * 1275 + FIXP_FRAC * 1275; - fixp_q = fixp_q * 1275 + FIXP_FRAC * 1275; - *vbuf++ = DIV_ROUND_CLOSEST(fixp_i, FIXP_FRAC * 10); - *vbuf++ = DIV_ROUND_CLOSEST(fixp_q, FIXP_FRAC * 10); + switch (dev->sdr_pixelformat) { + case V4L2_SDR_FMT_CU8: + /* convert 'fixp float' to u8 */ + /* u8 = X * 127.5 + 127.5; X is float [-1.0, +1.0] */ + fixp_i = fixp_i * 1275 + FIXP_FRAC * 1275; + fixp_q = fixp_q * 1275 + FIXP_FRAC * 1275; + *vbuf++ = DIV_ROUND_CLOSEST(fixp_i, FIXP_FRAC * 10); + *vbuf++ = DIV_ROUND_CLOSEST(fixp_q, FIXP_FRAC * 10); + break; + case V4L2_SDR_FMT_CS8: + /* convert 'fixp float' to s8 */ + fixp_i = fixp_i * 1275; + fixp_q = fixp_q * 1275; + *vbuf++ = DIV_ROUND_CLOSEST(fixp_i, FIXP_FRAC * 10); + *vbuf++ = DIV_ROUND_CLOSEST(fixp_q, FIXP_FRAC * 10); + break; + default: + break; + } } } diff --git a/drivers/media/platform/vivid/vivid-sdr-cap.h b/drivers/media/platform/vivid/vivid-sdr-cap.h index 79c1890..43014b2 100644 --- a/drivers/media/platform/vivid/vivid-sdr-cap.h +++ b/drivers/media/platform/vivid/vivid-sdr-cap.h @@ -27,6 +27,8 @@ int vivid_sdr_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt); int vivid_sdr_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt); int vidioc_enum_fmt_sdr_cap(struct file *file, void *fh, struct v4l2_fmtdesc *f); int vidioc_g_fmt_sdr_cap(struct file *file, void *fh, struct v4l2_format *f); +int vidioc_s_fmt_sdr_cap(struct file *file, void *fh, struct v4l2_format *f); +int vidioc_try_fmt_sdr_cap(struct file *file, void *fh, struct v4l2_format *f); void vivid_sdr_cap_process(struct vivid_dev *dev, struct vivid_buffer *buf); extern const struct vb2_ops vivid_sdr_cap_qops; -- 2.7.4