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authorAntti Palosaari <crope@iki.fi>2012-10-03 04:28:56 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-10-07 10:27:49 -0300
commit33eebec55c94c755f5f4785e46a72af9238999e2 (patch)
tree65fe0bd28133e7637cd1eac75787dd26d0cd0148 /drivers/media
parentd92462401dde1effa04a51d0a15000e6246d2a43 (diff)
downloadlinux-next-33eebec55c94c755f5f4785e46a72af9238999e2.tar.gz
[media] dvb: LNA implementation changes
* use dvb property cache * implement get (thus API minor++) * PCTV 290e: 1=LNA ON, all the other values LNA OFF Also fix PCTV 290e LNA comment, it is disabled by default Hans and Mauro proposed use of cache implementation of get as they were planning to extend LNA usage for analog side too. Reported-by: Hans Verkuil <hverkuil@xs4all.nl> Reported-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Antti Palosaari <crope@iki.fi> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/dvb-core/dvb_frontend.c18
-rw-r--r--drivers/media/dvb-core/dvb_frontend.h4
-rw-r--r--drivers/media/usb/em28xx/em28xx-dvb.c13
3 files changed, 24 insertions, 11 deletions
diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c
index 41af996c413f..7e92793260f0 100644
--- a/drivers/media/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb-core/dvb_frontend.c
@@ -966,6 +966,8 @@ static int dvb_frontend_clear_cache(struct dvb_frontend *fe)
break;
}
+ c->lna = LNA_AUTO;
+
return 0;
}
@@ -1054,6 +1056,8 @@ static struct dtv_cmds_h dtv_cmds[DTV_MAX_COMMAND + 1] = {
_DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_B, 0, 0),
_DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_C, 0, 0),
_DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_D, 0, 0),
+
+ _DTV_CMD(DTV_LNA, 0, 0),
};
static void dtv_property_dump(struct dvb_frontend *fe, struct dtv_property *tvp)
@@ -1440,6 +1444,10 @@ static int dtv_property_process_get(struct dvb_frontend *fe,
tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_d;
break;
+ case DTV_LNA:
+ tvp->u.data = c->lna;
+ break;
+
default:
return -EINVAL;
}
@@ -1731,10 +1739,6 @@ static int dtv_property_process_set(struct dvb_frontend *fe,
case DTV_INTERLEAVING:
c->interleaving = tvp->u.data;
break;
- case DTV_LNA:
- if (fe->ops.set_lna)
- r = fe->ops.set_lna(fe, tvp->u.data);
- break;
/* ISDB-T Support here */
case DTV_ISDBT_PARTIAL_RECEPTION:
@@ -1806,6 +1810,12 @@ static int dtv_property_process_set(struct dvb_frontend *fe,
fe->dtv_property_cache.atscmh_rs_frame_ensemble = tvp->u.data;
break;
+ case DTV_LNA:
+ c->lna = tvp->u.data;
+ if (fe->ops.set_lna)
+ r = fe->ops.set_lna(fe);
+ break;
+
default:
return -EINVAL;
}
diff --git a/drivers/media/dvb-core/dvb_frontend.h b/drivers/media/dvb-core/dvb_frontend.h
index 44a445cee74f..97112cd88a17 100644
--- a/drivers/media/dvb-core/dvb_frontend.h
+++ b/drivers/media/dvb-core/dvb_frontend.h
@@ -303,7 +303,7 @@ struct dvb_frontend_ops {
int (*dishnetwork_send_legacy_command)(struct dvb_frontend* fe, unsigned long cmd);
int (*i2c_gate_ctrl)(struct dvb_frontend* fe, int enable);
int (*ts_bus_ctrl)(struct dvb_frontend* fe, int acquire);
- int (*set_lna)(struct dvb_frontend *, int);
+ int (*set_lna)(struct dvb_frontend *);
/* These callbacks are for devices that implement their own
* tuning algorithms, rather than a simple swzigzag
@@ -391,6 +391,8 @@ struct dtv_frontend_properties {
u8 atscmh_sccc_code_mode_b;
u8 atscmh_sccc_code_mode_c;
u8 atscmh_sccc_code_mode_d;
+
+ u32 lna;
};
struct dvb_frontend {
diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c b/drivers/media/usb/em28xx/em28xx-dvb.c
index 913e5227897a..13ae821949e9 100644
--- a/drivers/media/usb/em28xx/em28xx-dvb.c
+++ b/drivers/media/usb/em28xx/em28xx-dvb.c
@@ -574,18 +574,19 @@ static void pctv_520e_init(struct em28xx *dev)
i2c_master_send(&dev->i2c_client, regs[i].r, regs[i].len);
};
-static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe, int val)
+static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe)
{
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct em28xx *dev = fe->dvb->priv;
#ifdef CONFIG_GPIOLIB
struct em28xx_dvb *dvb = dev->dvb;
int ret;
unsigned long flags;
- if (val)
- flags = GPIOF_OUT_INIT_LOW;
+ if (c->lna == 1)
+ flags = GPIOF_OUT_INIT_HIGH; /* enable LNA */
else
- flags = GPIOF_OUT_INIT_HIGH;
+ flags = GPIOF_OUT_INIT_LOW; /* disable LNA */
ret = gpio_request_one(dvb->lna_gpio, flags, NULL);
if (ret)
@@ -595,8 +596,8 @@ static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe, int val)
return ret;
#else
- dev_warn(&dev->udev->dev, "%s: LNA control is disabled\n",
- KBUILD_MODNAME);
+ dev_warn(&dev->udev->dev, "%s: LNA control is disabled (lna=%u)\n",
+ KBUILD_MODNAME, c->lna);
return 0;
#endif
}