Calculate tuner filters from sampling rate and use it if not
defined manually.
Signed-off-by: Antti Palosaari <cr...@iki.fi>
---
drivers/staging/media/msi3101/sdr-msi3101.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/media/msi3101/sdr-msi3101.c
b/drivers/staging/media/msi3101/sdr-msi3101.c
index cb66f81..02960c7 100644
--- a/drivers/staging/media/msi3101/sdr-msi3101.c
+++ b/drivers/staging/media/msi3101/sdr-msi3101.c
@@ -1416,7 +1416,7 @@ static int msi3101_set_tuner(struct msi3101_state *s)
{5000000, 0x04}, /* 5 MHz */
{6000000, 0x05}, /* 6 MHz */
{7000000, 0x06}, /* 7 MHz */
- {8000000, 0x07}, /* 8 MHz */
+ { ~0U, 0x07}, /* 8 MHz */
};
unsigned int f_rf = s->f_tuner;
@@ -1473,8 +1473,12 @@ static int msi3101_set_tuner(struct msi3101_state *s)
if (i == ARRAY_SIZE(if_freq_lut))
goto err;
+ /* user has not requested bandwidth, set some reasonable */
+ if (bandwidth == 0)
+ bandwidth = s->f_adc;
+
for (i = 0; i < ARRAY_SIZE(bandwidth_lut); i++) {
- if (bandwidth == bandwidth_lut[i].freq) {
+ if (bandwidth <= bandwidth_lut[i].freq) {
bandwidth = bandwidth_lut[i].val;
break;
}
@@ -1483,6 +1487,9 @@ static int msi3101_set_tuner(struct msi3101_state *s)
if (i == ARRAY_SIZE(bandwidth_lut))
goto err;
+ dev_dbg(&s->udev->dev, "%s: bandwidth selected=%d\n",
+ __func__, bandwidth_lut[i].freq);
+
#define F_OUT_STEP 1
#define R_REF 4
f_vco = (f_rf + f_if + f_if1) * lo_div;
@@ -1925,9 +1932,9 @@ static int msi3101_probe(struct usb_interface *intf,
.id = MSI3101_CID_TUNER_BW,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Tuner Bandwidth",
- .min = 200000,
+ .min = 0,
.max = 8000000,
- .def = 600000,
+ .def = 0,
.step = 1,
};
static const struct v4l2_ctrl_config ctrl_tuner_gain = {
--
1.8.5.3
--
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