Despite its name, tuner-simple has a complex logic to set freqs ;)
Basically, it can be called by two different ways: via set_params()
or via calc_regs() callbacks. Both are bound to the DVBv3 API.
Also, set_params internally calls calc_regs().
In order to get rid of DVBv3 params at set_params(), it shouldn't
call calc_regs() anymore. The code duplication is very small,
as most of the code there is just to check for invalid parameters.
With regards to calc_regs(), it should still trust on bandwidth and
frequency parameters passed via DVBv3, until a later patch fixes
it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
---
drivers/media/common/tuners/tuner-simple.c | 63 ++++++++++++++++++++-------
1 files changed, 46 insertions(+), 17 deletions(-)
diff --git a/drivers/media/common/tuners/tuner-simple.c b/drivers/media/common/tuners/tuner-simple.c
index 4092200..e6342db 100644
--- a/drivers/media/common/tuners/tuner-simple.c
+++ b/drivers/media/common/tuners/tuner-simple.c
@@ -791,24 +791,26 @@ static int simple_set_params(struct dvb_frontend *fe,
}
static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,
- const struct dvb_frontend_parameters *params)
+ const u32 delsys,
+ const u32 frequency,
+ const u32 bandwidth)
{
struct tuner_simple_priv *priv = fe->tuner_priv;
switch (priv->type) {
case TUNER_PHILIPS_FMD1216ME_MK3:
case TUNER_PHILIPS_FMD1216MEX_MK3:
- if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ &&
- params->frequency >= 158870000)
+ if (bandwidth == 8000000 &&
+ frequency >= 158870000)
buf[3] |= 0x08;
break;
case TUNER_PHILIPS_TD1316:
/* determine band */
- buf[3] |= (params->frequency < 161000000) ? 1 :
- (params->frequency < 444000000) ? 2 : 4;
+ buf[3] |= (frequency < 161000000) ? 1 :
+ (frequency < 444000000) ? 2 : 4;
/* setup PLL filter */
- if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
+ if (bandwidth == 8000000)
buf[3] |= 1 << 3;
break;
case TUNER_PHILIPS_TUV1236D:
@@ -819,12 +821,11 @@ static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,
if (dtv_input[priv->nr])
new_rf = dtv_input[priv->nr];
else
- switch (params->u.vsb.modulation) {
- case QAM_64:
- case QAM_256:
+ switch (delsys) {
+ case SYS_DVBC_ANNEX_B:
new_rf = 1;
break;
- case VSB_8:
+ case SYS_ATSC:
default:
new_rf = 0;
break;
@@ -838,7 +839,9 @@ static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,
}
static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
- const struct dvb_frontend_parameters *params)
+ const u32 delsys,
+ const u32 freq,
+ const u32 bw)
{
/* This function returns the tuned frequency on success, 0 on error */
struct tuner_simple_priv *priv = fe->tuner_priv;
@@ -847,7 +850,7 @@ static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
u8 config, cb;
u32 div;
int ret;
- unsigned frequency = params->frequency / 62500;
+ u32 frequency = freq / 62500;
if (!tun->stepsize) {
/* tuner-core was loaded before the digital tuner was
@@ -871,7 +874,7 @@ static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
buf[2] = config;
buf[3] = cb;
- simple_set_dvb(fe, buf, params);
+ simple_set_dvb(fe, buf, delsys, freq, bw);
tuner_dbg("%s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
tun->name, div, buf[0], buf[1], buf[2], buf[3]);
@@ -884,13 +887,29 @@ static int simple_dvb_calc_regs(struct dvb_frontend *fe,
struct dvb_frontend_parameters *params,
u8 *buf, int buf_len)
{
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ u32 delsys = c->delivery_system;
+ u32 bw = c->bandwidth_hz;
struct tuner_simple_priv *priv = fe->tuner_priv;
u32 frequency;
if (buf_len < 5)
return -EINVAL;
- frequency = simple_dvb_configure(fe, buf+1, params);
+ switch (delsys) {
+ case SYS_DVBT:
+ case SYS_DVBT2:
+ if (params->u.ofdm.bandwidth == BANDWIDTH_6_MHZ)
+ bw = 6000000;
+ if (params->u.ofdm.bandwidth == BANDWIDTH_7_MHZ)
+ bw = 7000000;
+ if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
+ bw = 8000000;
+ break;
+ default:
+ break;
+ }
+ frequency = simple_dvb_configure(fe, buf+1, delsys, params->frequency, bw);
if (frequency == 0)
return -EINVAL;
@@ -906,7 +925,12 @@ static int simple_dvb_calc_regs(struct dvb_frontend *fe,
static int simple_dvb_set_params(struct dvb_frontend *fe,
struct dvb_frontend_parameters *params)
{
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ u32 delsys = c->delivery_system;
+ u32 bw = c->bandwidth_hz;
+ u32 freq = c->frequency;
struct tuner_simple_priv *priv = fe->tuner_priv;
+ u32 frequency;
u32 prev_freq, prev_bw;
int ret;
u8 buf[5];
@@ -917,9 +941,14 @@ static int simple_dvb_set_params(struct dvb_frontend *fe,
prev_freq = priv->frequency;
prev_bw = priv->bandwidth;
- ret = simple_dvb_calc_regs(fe, params, buf, 5);
- if (ret != 5)
- goto fail;
+ frequency = simple_dvb_configure(fe, buf+1, delsys, freq, bw);
+ if (frequency == 0)
+ return -EINVAL;
+
+ buf[0] = priv->i2c_props.addr;
+
+ priv->frequency = frequency;
+ priv->bandwidth = bw;
/* put analog demod in standby when tuning digital */
if (fe->ops.analog_ops.standby)
--
1.7.8.352.g876a6
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
