V4L/DVB (13049): dib8000: SNR in 10th of dB

dib7000p/dib8000: added pid filtering

dib8000: the SNR is in 10th of dB (not in dB)
dib7000p and dib8000: added the pid filtering. This feature is enabled by module option (dvb-usb module).

Signed-off-by: Olivier Grenie <olivier.grenie@dibcom.fr>
Signed-off-by: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

4 files changed, 65 insertions, 1 deletions

diff --git a/drivers/media/dvb/frontends/dib7000p.c b/drivers/media/dvb/frontends/dib7000p.c
index 0781f94e05d..60e1aaaec5b 100644
--- a/drivers/media/dvb/frontends/dib7000p.c
+++ b/drivers/media/dvb/frontends/dib7000p.c
@@ -1302,6 +1302,24 @@ struct i2c_adapter * dib7000p_get_i2c_master(struct dvb_frontend *demod, enum di
 }
 EXPORT_SYMBOL(dib7000p_get_i2c_master);
 
+int dib7000p_pid_filter_ctrl(struct dvb_frontend *fe, u8 onoff)
+{
+    struct dib7000p_state *state = fe->demodulator_priv;
+    u16 val = dib7000p_read_word(state, 235) & 0xffef;
+    val |= (onoff & 0x1) << 4;
+    dprintk("PID filter enabled %d", onoff);
+    return dib7000p_write_word(state, 235, val);
+}
+EXPORT_SYMBOL(dib7000p_pid_filter_ctrl);
+
+int dib7000p_pid_filter(struct dvb_frontend *fe, u8 id, u16 pid, u8 onoff)
+{
+    struct dib7000p_state *state = fe->demodulator_priv;
+    dprintk("PID filter: index %x, PID %d, OnOff %d", id, pid, onoff);
+    return dib7000p_write_word(state, 241 + id, onoff ? (1 << 13) | pid : 0);
+}
+EXPORT_SYMBOL(dib7000p_pid_filter);
+
 int dib7000p_i2c_enumeration(struct i2c_adapter *i2c, int no_of_demods, u8 default_addr, struct dib7000p_config cfg[])
 {
 	struct dib7000p_state st = { .i2c_adap = i2c };
diff --git a/drivers/media/dvb/frontends/dib7000p.h b/drivers/media/dvb/frontends/dib7000p.h
index 02a4c82f0c7..3a769df3c86 100644
--- a/drivers/media/dvb/frontends/dib7000p.h
+++ b/drivers/media/dvb/frontends/dib7000p.h
@@ -51,6 +51,8 @@ extern int dib7000p_i2c_enumeration(struct i2c_adapter *i2c,
 extern int dib7000p_set_gpio(struct dvb_frontend *, u8 num, u8 dir, u8 val);
 extern int dib7000p_set_wbd_ref(struct dvb_frontend *, u16 value);
 extern int dib7000pc_detection(struct i2c_adapter *i2c_adap);
+extern int dib7000p_pid_filter(struct dvb_frontend *, u8 id, u16 pid, u8 onoff);
+extern int dib7000p_pid_filter_ctrl(struct dvb_frontend *fe, u8 onoff);
 #else
 static inline
 struct dvb_frontend *dib7000p_attach(struct i2c_adapter *i2c_adap, u8 i2c_addr,
@@ -95,6 +97,17 @@ static inline int dib7000pc_detection(struct i2c_adapter *i2c_adap)
 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
 	return -ENODEV;
 }
+static inline int dib7000p_pid_filter(struct dvb_frontend *, u8 id, u16 pid, u8 onoff)
+{
+    printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+    return -ENODEV;
+}
+
+static inline int dib7000p_pid_filter_ctrl(struct dvb_frontend *fe, uint8_t onoff)
+{
+    printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+    return -ENODEV;
+}
 #endif
 
 #endif
diff --git a/drivers/media/dvb/frontends/dib8000.c b/drivers/media/dvb/frontends/dib8000.c
index 852c790d09d..44c2dc9b4f1 100644
--- a/drivers/media/dvb/frontends/dib8000.c
+++ b/drivers/media/dvb/frontends/dib8000.c
@@ -2121,7 +2121,7 @@ static int dib8000_read_snr(struct dvb_frontend *fe, u16 * snr)
 	else
 		result -= intlog10(2) * 10 * noise_exp - 100;
 
-	*snr = result / (1 << 24);
+	*snr = result / ((1 << 24) / 10);
 	return 0;
 }
 
@@ -2195,6 +2195,25 @@ struct i2c_adapter *dib8000_get_i2c_master(struct dvb_frontend *fe, enum dibx000
 
 EXPORT_SYMBOL(dib8000_get_i2c_master);
 
+int dib8000_pid_filter_ctrl(struct dvb_frontend *fe, u8 onoff)
+{
+	struct dib8000_state *st = fe->demodulator_priv;
+    u16 val = dib8000_read_word(st, 299) & 0xffef;
+    val |= (onoff & 0x1) << 4;
+
+    dprintk("pid filter enabled %d", onoff);
+    return dib8000_write_word(st, 299, val);
+}
+EXPORT_SYMBOL(dib8000_pid_filter_ctrl);
+
+int dib8000_pid_filter(struct dvb_frontend *fe, u8 id, u16 pid, u8 onoff)
+{
+	struct dib8000_state *st = fe->demodulator_priv;
+    dprintk("Index %x, PID %d, OnOff %d", id, pid, onoff);
+    return dib8000_write_word(st, 305 + id, onoff ? (1 << 13) | pid : 0);
+}
+EXPORT_SYMBOL(dib8000_pid_filter);
+
 static const struct dvb_frontend_ops dib8000_ops = {
 	.info = {
 		 .name = "DiBcom 8000 ISDB-T",
diff --git a/drivers/media/dvb/frontends/dib8000.h b/drivers/media/dvb/frontends/dib8000.h
index a86de340dd5..8c89482b738 100644
--- a/drivers/media/dvb/frontends/dib8000.h
+++ b/drivers/media/dvb/frontends/dib8000.h
@@ -44,6 +44,8 @@ extern int dib8000_i2c_enumeration(struct i2c_adapter *host, int no_of_demods, u
 
 extern int dib8000_set_gpio(struct dvb_frontend *, u8 num, u8 dir, u8 val);
 extern int dib8000_set_wbd_ref(struct dvb_frontend *, u16 value);
+extern int dib8000_pid_filter_ctrl(struct dvb_frontend *, u8 onoff);
+extern int dib8000_pid_filter(struct dvb_frontend *, u8 id, u16 pid, u8 onoff);
 #else
 static inline struct dvb_frontend *dib8000_attach(struct i2c_adapter *i2c_adap, u8 i2c_addr, struct dib8000_config *cfg)
 {
@@ -74,6 +76,18 @@ int dib8000_set_wbd_ref(struct dvb_frontend *fe, u16 value)
 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
 	return -ENODEV;
 }
+
+int dib8000_pid_filter_ctrl(struct dvb_frontend *fe, u8 onoff)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+	return -ENODEV;
+}
+
+int dib8000_pid_filter(struct dvb_frontend *fe, u8 id, u16 pid, u8 onoff)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+	return -ENODEV;
+}
 #endif
 
 #endif