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path: root/drivers/media/dvb/dvb-usb/gp8psk-fe.c
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Diffstat (limited to 'drivers/media/dvb/dvb-usb/gp8psk-fe.c')
-rw-r--r--drivers/media/dvb/dvb-usb/gp8psk-fe.c84
1 files changed, 51 insertions, 33 deletions
diff --git a/drivers/media/dvb/dvb-usb/gp8psk-fe.c b/drivers/media/dvb/dvb-usb/gp8psk-fe.c
index 6ccbdc9..e37142d 100644
--- a/drivers/media/dvb/dvb-usb/gp8psk-fe.c
+++ b/drivers/media/dvb/dvb-usb/gp8psk-fe.c
@@ -1,7 +1,8 @@
/* DVB USB compliant Linux driver for the
- * - GENPIX 8pks/qpsk USB2.0 DVB-S module
+ * - GENPIX 8pks/qpsk/DCII USB2.0 DVB-S module
*
- * Copyright (C) 2006 Alan Nisota (alannisota@gmail.com)
+ * Copyright (C) 2006,2007 Alan Nisota (alannisota@gmail.com)
+ * Copyright (C) 2006,2007 Genpix Electronics (genpix@genpix-electronics.com)
*
* Thanks to GENPIX for the sample code used to implement this module.
*
@@ -17,27 +18,39 @@
struct gp8psk_fe_state {
struct dvb_frontend fe;
-
struct dvb_usb_device *d;
-
+ u8 lock;
u16 snr;
-
- unsigned long next_snr_check;
+ unsigned long next_status_check;
+ unsigned long status_check_interval;
};
+static int gp8psk_fe_update_status(struct gp8psk_fe_state *st)
+{
+ u8 buf[6];
+ if (time_after(jiffies,st->next_status_check)) {
+ gp8psk_usb_in_op(st->d, GET_SIGNAL_LOCK, 0,0,&st->lock,1);
+ gp8psk_usb_in_op(st->d, GET_SIGNAL_STRENGTH, 0,0,buf,6);
+ st->snr = (buf[1]) << 8 | buf[0];
+ st->next_status_check = jiffies + (st->status_check_interval*HZ)/1000;
+ }
+ return 0;
+}
+
static int gp8psk_fe_read_status(struct dvb_frontend* fe, fe_status_t *status)
{
struct gp8psk_fe_state *st = fe->demodulator_priv;
- u8 lock;
+ gp8psk_fe_update_status(st);
- if (gp8psk_usb_in_op(st->d, GET_SIGNAL_LOCK, 0, 0, &lock,1))
- return -EINVAL;
-
- if (lock)
+ if (st->lock)
*status = FE_HAS_LOCK | FE_HAS_SYNC | FE_HAS_VITERBI | FE_HAS_SIGNAL | FE_HAS_CARRIER;
else
*status = 0;
+ if (*status & FE_HAS_LOCK)
+ st->status_check_interval = 1000;
+ else
+ st->status_check_interval = 100;
return 0;
}
@@ -60,33 +73,29 @@ static int gp8psk_fe_read_unc_blocks(struct dvb_frontend* fe, u32 *unc)
static int gp8psk_fe_read_snr(struct dvb_frontend* fe, u16 *snr)
{
struct gp8psk_fe_state *st = fe->demodulator_priv;
- u8 buf[2];
-
- if (time_after(jiffies,st->next_snr_check)) {
- gp8psk_usb_in_op(st->d,GET_SIGNAL_STRENGTH,0,0,buf,2);
- *snr = (int)(buf[1]) << 8 | buf[0];
- /* snr is reported in dBu*256 */
- /* snr / 38.4 ~= 100% strength */
- /* snr * 17 returns 100% strength as 65535 */
- if (*snr <= 3855)
- *snr = (*snr<<4) + *snr; // snr * 17
- else
- *snr = 65535;
- st->next_snr_check = jiffies + (10*HZ)/1000;
- } else {
- *snr = st->snr;
- }
+ gp8psk_fe_update_status(st);
+ /* snr is reported in dBu*256 */
+ *snr = st->snr;
return 0;
}
static int gp8psk_fe_read_signal_strength(struct dvb_frontend* fe, u16 *strength)
{
- return gp8psk_fe_read_snr(fe, strength);
+ struct gp8psk_fe_state *st = fe->demodulator_priv;
+ gp8psk_fe_update_status(st);
+ /* snr is reported in dBu*256 */
+ /* snr / 38.4 ~= 100% strength */
+ /* snr * 17 returns 100% strength as 65535 */
+ if (st->snr > 0xf00)
+ *strength = 0xffff;
+ else
+ *strength = (st->snr << 4) + st->snr; /* snr*17 */
+ return 0;
}
static int gp8psk_fe_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *tune)
{
- tune->min_delay_ms = 800;
+ tune->min_delay_ms = 200;
return 0;
}
@@ -124,7 +133,9 @@ static int gp8psk_fe_set_frontend(struct dvb_frontend* fe,
gp8psk_usb_out_op(state->d,TUNE_8PSK,0,0,cmd,10);
- state->next_snr_check = jiffies;
+ state->lock = 0;
+ state->next_status_check = jiffies;
+ state->status_check_interval = 200;
return 0;
}
@@ -190,6 +201,12 @@ static int gp8psk_fe_set_voltage (struct dvb_frontend* fe, fe_sec_voltage_t volt
return 0;
}
+static int gp8psk_fe_enable_high_lnb_voltage(struct dvb_frontend* fe, long onoff)
+{
+ struct gp8psk_fe_state* state = fe->demodulator_priv;
+ return gp8psk_usb_out_op(state->d, USE_EXTRA_VOLT, onoff, 0,NULL,0);
+}
+
static int gp8psk_fe_send_legacy_dish_cmd (struct dvb_frontend* fe, unsigned long sw_cmd)
{
struct gp8psk_fe_state* state = fe->demodulator_priv;
@@ -235,10 +252,10 @@ success:
static struct dvb_frontend_ops gp8psk_fe_ops = {
.info = {
- .name = "Genpix 8psk-USB DVB-S",
+ .name = "Genpix 8psk-to-USB2 DVB-S",
.type = FE_QPSK,
- .frequency_min = 950000,
- .frequency_max = 2150000,
+ .frequency_min = 800000,
+ .frequency_max = 2250000,
.frequency_stepsize = 100,
.symbol_rate_min = 1000000,
.symbol_rate_max = 45000000,
@@ -269,4 +286,5 @@ static struct dvb_frontend_ops gp8psk_fe_ops = {
.set_tone = gp8psk_fe_set_tone,
.set_voltage = gp8psk_fe_set_voltage,
.dishnetwork_send_legacy_command = gp8psk_fe_send_legacy_dish_cmd,
+ .enable_high_lnb_voltage = gp8psk_fe_enable_high_lnb_voltage
};