diff options
| -rw-r--r-- | drivers/media/dvb-frontends/rtl2832_sdr.c | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/drivers/media/dvb-frontends/rtl2832_sdr.c b/drivers/media/dvb-frontends/rtl2832_sdr.c index 8665ea37b1b3..f58bd746d823 100644 --- a/drivers/media/dvb-frontends/rtl2832_sdr.c +++ b/drivers/media/dvb-frontends/rtl2832_sdr.c @@ -84,15 +84,18 @@ static const struct v4l2_frequency_band bands_fm[] = { struct rtl2832_sdr_format { char *name; u32 pixelformat; + u32 buffersize; }; static struct rtl2832_sdr_format formats[] = { { .name = "Complex U8", - .pixelformat = V4L2_SDR_FMT_CU8, + .pixelformat = V4L2_SDR_FMT_CU8, + .buffersize = BULK_BUFFER_SIZE, }, { .name = "Complex U16LE (emulated)", .pixelformat = V4L2_SDR_FMT_CU16LE, + .buffersize = BULK_BUFFER_SIZE * 2, }, }; @@ -143,6 +146,7 @@ struct rtl2832_sdr_state { unsigned int f_adc, f_tuner; u32 pixelformat; + u32 buffersize; unsigned int num_formats; /* Controls */ @@ -633,8 +637,7 @@ static int rtl2832_sdr_queue_setup(struct vb2_queue *vq, if (vq->num_buffers + *nbuffers < 8) *nbuffers = 8 - vq->num_buffers; *nplanes = 1; - /* 2 = max 16-bit sample returned */ - sizes[0] = PAGE_ALIGN(BULK_BUFFER_SIZE * 2); + sizes[0] = PAGE_ALIGN(s->buffersize); dev_dbg(&s->udev->dev, "%s: nbuffers=%d sizes[0]=%d\n", __func__, *nbuffers, sizes[0]); return 0; @@ -1233,6 +1236,8 @@ static int rtl2832_sdr_g_fmt_sdr_cap(struct file *file, void *priv, dev_dbg(&s->udev->dev, "%s:\n", __func__); f->fmt.sdr.pixelformat = s->pixelformat; + f->fmt.sdr.buffersize = s->buffersize; + memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); return 0; @@ -1254,13 +1259,17 @@ static int rtl2832_sdr_s_fmt_sdr_cap(struct file *file, void *priv, memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); for (i = 0; i < s->num_formats; i++) { if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { - s->pixelformat = f->fmt.sdr.pixelformat; + s->pixelformat = formats[i].pixelformat; + s->buffersize = formats[i].buffersize; + f->fmt.sdr.buffersize = formats[i].buffersize; return 0; } } - f->fmt.sdr.pixelformat = formats[0].pixelformat; s->pixelformat = formats[0].pixelformat; + s->buffersize = formats[0].buffersize; + f->fmt.sdr.pixelformat = formats[0].pixelformat; + f->fmt.sdr.buffersize = formats[0].buffersize; return 0; } @@ -1276,11 +1285,14 @@ static int rtl2832_sdr_try_fmt_sdr_cap(struct file *file, void *priv, memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); for (i = 0; i < s->num_formats; i++) { - if (formats[i].pixelformat == f->fmt.sdr.pixelformat) + 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; } @@ -1418,7 +1430,8 @@ struct dvb_frontend *rtl2832_sdr_attach(struct dvb_frontend *fe, s->cfg = cfg; s->f_adc = bands_adc[0].rangelow; s->f_tuner = bands_fm[0].rangelow; - s->pixelformat = V4L2_SDR_FMT_CU8; + s->pixelformat = formats[0].pixelformat; + s->buffersize = formats[0].buffersize; s->num_formats = NUM_FORMATS; if (rtl2832_sdr_emulated_fmt == false) s->num_formats -= 1; |