xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[media] cxd2820r: improve lock detection

Browse Source 
Check demod and ts locks and report lock status according to those.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Antti Palosaari
2016-08-12 16:58:05 -03:00
committed by Mauro Carvalho Chehab
parent c98975f92c
commit d51dc91761
3 changed files with 50 additions and 49 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
drivers/media/dvb-frontends/cxd2820r_c.c
View File

@@ -160,25 +160,32 @@ int cxd2820r_read_status_c(struct dvb_frontend *fe, enum fe_status *status)
struct i2c_client *client = priv->client[0]; struct i2c_client *client = priv->client[0];
struct dtv_frontend_properties *c = &fe->dtv_property_cache; struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret; int ret;
unsigned int utmp; unsigned int utmp, utmp1, utmp2;
u8 buf[3]; u8 buf[3];
*status = 0;
ret = cxd2820r_rd_regs(priv, 0x10088, buf, 2); /* Lock detection */
ret = cxd2820r_rd_reg(priv, 0x10088, &buf[0]);
if (ret)
goto error;
ret = cxd2820r_rd_reg(priv, 0x10073, &buf[1]);
if (ret) if (ret)
goto error; goto error;
if (((buf[0] >> 0) & 0x01) == 1) { utmp1 = (buf[0] >> 0) & 0x01;
*status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | utmp2 = (buf[1] >> 3) & 0x01;
FE_HAS_VITERBI | FE_HAS_SYNC;
if (((buf[1] >> 3) & 0x01) == 1) { if (utmp1 == 1 && utmp2 == 1) {
*status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | *status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK; FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
} } else if (utmp1 == 1 || utmp2 == 1) {
*status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
FE_HAS_VITERBI | FE_HAS_SYNC;
} else {
*status = 0;
} }
dev_dbg(&client->dev, "lock=%*ph\n", 2, buf); dev_dbg(&client->dev, "status=%02x raw=%*ph sync=%u ts=%u\n",
*status, 2, buf, utmp1, utmp2);
/* Signal strength */ /* Signal strength */
if (*status & FE_HAS_SIGNAL) { if (*status & FE_HAS_SIGNAL) {

36
drivers/media/dvb-frontends/cxd2820r_t.c
View File

@@ -265,42 +265,32 @@ int cxd2820r_read_status_t(struct dvb_frontend *fe, enum fe_status *status)
struct i2c_client *client = priv->client[0]; struct i2c_client *client = priv->client[0];
struct dtv_frontend_properties *c = &fe->dtv_property_cache; struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret; int ret;
unsigned int utmp; unsigned int utmp, utmp1, utmp2;
u8 buf[4]; u8 buf[3];
*status = 0;
/* Lock detection */
ret = cxd2820r_rd_reg(priv, 0x00010, &buf[0]); ret = cxd2820r_rd_reg(priv, 0x00010, &buf[0]);
if (ret) if (ret)
goto error; goto error;
if ((buf[0] & 0x07) == 6) {
ret = cxd2820r_rd_reg(priv, 0x00073, &buf[1]); ret = cxd2820r_rd_reg(priv, 0x00073, &buf[1]);
if (ret) if (ret)
goto error; goto error;
if (((buf[1] >> 3) & 0x01) == 1) { utmp1 = (buf[0] >> 0) & 0x07;
*status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | utmp2 = (buf[1] >> 3) & 0x01;
if (utmp1 == 6 && utmp2 == 1) {
*status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK; FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
} else { } else if (utmp1 == 6 || utmp2 == 1) {
*status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | *status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
FE_HAS_VITERBI | FE_HAS_SYNC; FE_HAS_VITERBI | FE_HAS_SYNC;
}
} else { } else {
ret = cxd2820r_rd_reg(priv, 0x00014, &buf[2]); *status = 0;
if (ret)
goto error;
if ((buf[2] & 0x0f) >= 4) {
ret = cxd2820r_rd_reg(priv, 0x00a14, &buf[3]);
if (ret)
goto error;
if (((buf[3] >> 4) & 0x01) == 1)
*status |= FE_HAS_SIGNAL;
}
} }
dev_dbg(&client->dev, "lock=%*ph\n", 4, buf); dev_dbg(&client->dev, "status=%02x raw=%*ph sync=%u ts=%u\n",
*status, 2, buf, utmp1, utmp2);
/* Signal strength */ /* Signal strength */
if (*status & FE_HAS_SIGNAL) { if (*status & FE_HAS_SIGNAL) {

22
drivers/media/dvb-frontends/cxd2820r_t2.c
View File

@@ -293,25 +293,29 @@ int cxd2820r_read_status_t2(struct dvb_frontend *fe, enum fe_status *status)
struct dtv_frontend_properties *c = &fe->dtv_property_cache; struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct i2c_client *client = priv->client[0]; struct i2c_client *client = priv->client[0];
int ret; int ret;
unsigned int utmp; unsigned int utmp, utmp1, utmp2;
u8 buf[4]; u8 buf[4];
*status = 0;
/* Lock detection */
ret = cxd2820r_rd_reg(priv, 0x02010 , &buf[0]); ret = cxd2820r_rd_reg(priv, 0x02010 , &buf[0]);
if (ret) if (ret)
goto error; goto error;
if ((buf[0] & 0x07) == 6) { utmp1 = (buf[0] >> 0) & 0x07;
if (((buf[0] >> 5) & 0x01) == 1) { utmp2 = (buf[0] >> 5) & 0x01;
*status |= FE_HAS_SIGNAL | FE_HAS_CARRIER |
if (utmp1 == 6 && utmp2 == 1) {
*status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK; FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
} else { } else if (utmp1 == 6 || utmp2 == 1) {
*status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | *status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
FE_HAS_VITERBI | FE_HAS_SYNC; FE_HAS_VITERBI | FE_HAS_SYNC;
} } else {
*status = 0;
} }
dev_dbg(&client->dev, "lock=%*ph\n", 1, buf); dev_dbg(&client->dev, "status=%02x raw=%*ph sync=%u ts=%u\n",
*status, 1, buf, utmp1, utmp2);
/* Signal strength */ /* Signal strength */
if (*status & FE_HAS_SIGNAL) { if (*status & FE_HAS_SIGNAL) {