summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--linux/drivers/media/dvb/frontends/tda18271-fe.c164
1 files changed, 48 insertions, 116 deletions
diff --git a/linux/drivers/media/dvb/frontends/tda18271-fe.c b/linux/drivers/media/dvb/frontends/tda18271-fe.c
index 0e14552d0..dfa7456de 100644
--- a/linux/drivers/media/dvb/frontends/tda18271-fe.c
+++ b/linux/drivers/media/dvb/frontends/tda18271-fe.c
@@ -37,22 +37,6 @@ static LIST_HEAD(hybrid_tuner_instance_list);
/*---------------------------------------------------------------------*/
-static int tda18271_ir_cal_init(struct dvb_frontend *fe)
-{
- struct tda18271_priv *priv = fe->tuner_priv;
- unsigned char *regs = priv->tda18271_regs;
-
- tda18271_read_regs(fe);
-
- /* test IR_CAL_OK to see if we need init */
- if ((regs[R_EP1] & 0x08) == 0)
- tda18271_init_regs(fe);
-
- return 0;
-}
-
-/* ------------------------------------------------------------------ */
-
static int tda18271_channel_configuration(struct dvb_frontend *fe,
u32 ifc, u32 freq, u32 bw, u8 std,
int radio)
@@ -215,8 +199,10 @@ static int tda18271_read_thermometer(struct dvb_frontend *fe)
return tm;
}
-static int tda18271_rf_tracking_filters_correction(struct dvb_frontend *fe,
- u32 freq)
+/* ------------------------------------------------------------------ */
+
+static int tda18271c2_rf_tracking_filters_correction(struct dvb_frontend *fe,
+ u32 freq)
{
struct tda18271_priv *priv = fe->tuner_priv;
struct tda18271_rf_tracking_filter_cal *map = priv->rf_cal_state;
@@ -611,7 +597,7 @@ static int tda18271_calc_rf_filter_curve(struct dvb_frontend *fe)
/* ------------------------------------------------------------------ */
-static int tda18271_rf_cal_init(struct dvb_frontend *fe)
+static int tda18271c2_rf_cal_init(struct dvb_frontend *fe)
{
struct tda18271_priv *priv = fe->tuner_priv;
unsigned char *regs = priv->tda18271_regs;
@@ -634,63 +620,13 @@ static int tda18271_rf_cal_init(struct dvb_frontend *fe)
return 0;
}
-static int tda18271_init(struct dvb_frontend *fe)
-{
- struct tda18271_priv *priv = fe->tuner_priv;
-
- mutex_lock(&priv->lock);
-
- /* power up */
- tda18271_set_standby_mode(fe, 0, 0, 0);
-
- /* initialization */
- tda18271_ir_cal_init(fe);
-
- if (priv->id == TDA18271HDC2)
- tda18271_rf_cal_init(fe);
-
- mutex_unlock(&priv->lock);
-
- return 0;
-}
-
-static int tda18271c2_tune(struct dvb_frontend *fe,
- u32 ifc, u32 freq, u32 bw, u8 std, int radio)
-{
- struct tda18271_priv *priv = fe->tuner_priv;
-
- tda_dbg("freq = %d, ifc = %d\n", freq, ifc);
-
- tda18271_init(fe);
-
- mutex_lock(&priv->lock);
-
- tda18271_rf_tracking_filters_correction(fe, freq);
-
- tda18271_channel_configuration(fe, ifc, freq, bw, std, radio);
-
- mutex_unlock(&priv->lock);
-
- return 0;
-}
-
-/* ------------------------------------------------------------------ */
-
-static int tda18271c1_tune(struct dvb_frontend *fe,
- u32 ifc, u32 freq, u32 bw, u8 std, int radio)
+static int tda18271c1_rf_tracking_filter_calibration(struct dvb_frontend *fe,
+ u32 freq, u32 bw)
{
struct tda18271_priv *priv = fe->tuner_priv;
unsigned char *regs = priv->tda18271_regs;
u32 N = 0;
- tda18271_init(fe);
-
- mutex_lock(&priv->lock);
-
- tda_dbg("freq = %d, ifc = %d\n", freq, ifc);
-
- /* RF tracking filter calibration */
-
/* calculate bp filter */
tda18271_calc_bp_filter(fe, &freq);
tda18271_write_regs(fe, R_EP1, 1);
@@ -761,7 +697,7 @@ static int tda18271c1_tune(struct dvb_frontend *fe,
regs[R_EB7] = 0x40;
tda18271_write_regs(fe, R_EB7, 1);
- msleep(10);
+ msleep(10); /* pll locking */
regs[R_EB20] = 0xec;
tda18271_write_regs(fe, R_EB20, 1);
@@ -776,74 +712,70 @@ static int tda18271c1_tune(struct dvb_frontend *fe,
if (0 == tda18271_calc_rf_cal(fe, &freq))
tda18271_write_regs(fe, R_EB14, 1);
- /* Channel Configuration */
+ return 0;
+}
- switch (priv->mode) {
- case TDA18271_ANALOG:
- regs[R_EB22] = 0x2c;
- break;
- case TDA18271_DIGITAL:
- regs[R_EB22] = 0x37;
- break;
- }
- tda18271_write_regs(fe, R_EB22, 1);
+/* ------------------------------------------------------------------ */
- regs[R_EP1] |= 0x40; /* set dis power level on */
+static int tda18271_ir_cal_init(struct dvb_frontend *fe)
+{
+ struct tda18271_priv *priv = fe->tuner_priv;
+ unsigned char *regs = priv->tda18271_regs;
- /* set standard */
- regs[R_EP3] &= ~0x1f; /* clear std bits */
+ tda18271_read_regs(fe);
- /* see table 22 */
- regs[R_EP3] |= std;
+ /* test IR_CAL_OK to see if we need init */
+ if ((regs[R_EP1] & 0x08) == 0)
+ tda18271_init_regs(fe);
- regs[R_EP4] &= ~0x03; /* set cal mode to normal */
+ return 0;
+}
- regs[R_EP4] &= ~0x1c; /* clear if level bits */
- switch (priv->mode) {
- case TDA18271_ANALOG:
- regs[R_MPD] &= ~0x80; /* IF notch = 0 */
- break;
- case TDA18271_DIGITAL:
- regs[R_EP4] |= 0x04;
- regs[R_MPD] |= 0x80;
- break;
- }
+static int tda18271_init(struct dvb_frontend *fe)
+{
+ struct tda18271_priv *priv = fe->tuner_priv;
- if (radio)
- regs[R_EP4] |= 0x80;
- else
- regs[R_EP4] &= ~0x80;
+ mutex_lock(&priv->lock);
- /* image rejection validity */
- tda18271_calc_ir_measure(fe, &freq);
+ /* power up */
+ tda18271_set_standby_mode(fe, 0, 0, 0);
- /* calculate MAIN PLL */
- N = freq + ifc;
+ /* initialization */
+ tda18271_ir_cal_init(fe);
- tda18271_calc_main_pll(fe, N);
+ if (priv->id == TDA18271HDC2)
+ tda18271c2_rf_cal_init(fe);
- tda18271_write_regs(fe, R_TM, 15);
- msleep(5);
mutex_unlock(&priv->lock);
return 0;
}
-static inline int tda18271_tune(struct dvb_frontend *fe,
- u32 ifc, u32 freq, u32 bw, u8 std, int radio)
+static int tda18271_tune(struct dvb_frontend *fe,
+ u32 ifc, u32 freq, u32 bw, u8 std, int radio)
{
struct tda18271_priv *priv = fe->tuner_priv;
- int ret = -EINVAL;
+
+ tda_dbg("freq = %d, ifc = %d, bw = %d, std = 0x%02x\n",
+ freq, ifc, bw, std);
+
+ tda18271_init(fe);
+
+ mutex_lock(&priv->lock);
switch (priv->id) {
case TDA18271HDC1:
- ret = tda18271c1_tune(fe, ifc, freq, bw, std, radio);
+ tda18271c1_rf_tracking_filter_calibration(fe, freq, bw);
break;
case TDA18271HDC2:
- ret = tda18271c2_tune(fe, ifc, freq, bw, std, radio);
+ tda18271c2_rf_tracking_filters_correction(fe, freq);
break;
}
- return ret;
+ tda18271_channel_configuration(fe, ifc, freq, bw, std, radio);
+
+ mutex_unlock(&priv->lock);
+
+ return 0;
}
/* ------------------------------------------------------------------ */
@@ -1183,7 +1115,7 @@ struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
tda18271_init_regs(fe);
if ((tda18271_cal_on_startup) && (priv->id == TDA18271HDC2))
- tda18271_rf_cal_init(fe);
+ tda18271c2_rf_cal_init(fe);
mutex_unlock(&priv->lock);
break;
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-18 23:12:59 +0000