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| author | Andreas Regel <andreas.regel@gmx.de> | 2009-04-07 16:09:52 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-06-16 18:20:38 -0300 |
| commit | 54d859ec563d2f0cbbc03e45e204325c5f2118bf (patch) | |
| tree | e104962e867e5af697d52e2d87e78430e3d89381 /drivers/media/dvb/frontends/isl6423.c | |
| parent | 5657150759ab67292db0333808a069970328663b (diff) | |
| download | kernel_samsung_smdk4412-54d859ec563d2f0cbbc03e45e204325c5f2118bf.tar.gz kernel_samsung_smdk4412-54d859ec563d2f0cbbc03e45e204325c5f2118bf.tar.bz2 kernel_samsung_smdk4412-54d859ec563d2f0cbbc03e45e204325c5f2118bf.zip | |
V4L/DVB (11583): isl6423: Various fixes to use external modulation
Use external modulation
Signed-off-by: Andreas Regel <andreas.regel@gmx.de>
Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb/frontends/isl6423.c')
| -rw-r--r-- | drivers/media/dvb/frontends/isl6423.c | 35 |
1 files changed, 25 insertions, 10 deletions
diff --git a/drivers/media/dvb/frontends/isl6423.c b/drivers/media/dvb/frontends/isl6423.c index c1943dcb8db..dca5bebfeeb 100644 --- a/drivers/media/dvb/frontends/isl6423.c +++ b/drivers/media/dvb/frontends/isl6423.c @@ -73,6 +73,7 @@ static int isl6423_write(struct isl6423_dev *isl6423, u8 reg) struct i2c_msg msg = { .addr = addr, .flags = 0, .buf = ®, .len = 1 }; + dprintk(FE_DEBUG, 1, "write reg %02X", reg); err = i2c_transfer(i2c, &msg, 1); if (err < 0) goto exit; @@ -133,6 +134,9 @@ static int isl6423_voltage_boost(struct dvb_frontend *fe, long arg) if (err < 0) goto exit; + isl6423->reg_3 = reg_3; + isl6423->reg_4 = reg_4; + return 0; exit: dprintk(FE_ERROR, 1, "I/O error <%d>", err); @@ -144,12 +148,10 @@ static int isl6423_set_voltage(struct dvb_frontend *fe, enum fe_sec_voltage voltage) { struct isl6423_dev *isl6423 = (struct isl6423_dev *) fe->sec_priv; + u8 reg_3 = isl6423->reg_3; u8 reg_4 = isl6423->reg_4; int err = 0; - /* SR4H = 0, SR4M = 1, SR4L = 1 */ - reg_4 = 0x03 << 5; - switch (voltage) { case SEC_VOLTAGE_OFF: /* EN = 0 */ @@ -160,6 +162,7 @@ static int isl6423_set_voltage(struct dvb_frontend *fe, /* EN = 1, VSPEN = 1, VTOP = 0, VBOT = 0 */ reg_4 |= (1 << 4); reg_4 &= ~0x3; + reg_3 |= (1 << 3); break; case SEC_VOLTAGE_18: @@ -167,15 +170,23 @@ static int isl6423_set_voltage(struct dvb_frontend *fe, reg_4 |= (1 << 4); reg_4 |= 0x2; reg_4 &= ~0x1; + reg_3 |= (1 << 3); break; default: break; } + err = isl6423_write(isl6423, reg_3); + if (err < 0) + goto exit; + err = isl6423_write(isl6423, reg_4); if (err < 0) goto exit; + isl6423->reg_3 = reg_3; + isl6423->reg_4 = reg_4; + return 0; exit: dprintk(FE_ERROR, 1, "I/O error <%d>", err); @@ -189,9 +200,6 @@ static int isl6423_set_current(struct dvb_frontend *fe) const struct isl6423_config *config = isl6423->config; int err = 0; - /* SR3H = 0, SR3M = 1, SR3L = 0 */ - reg_3 = 0x02 << 5; - switch (config->current_max) { case SEC_CURRENT_275m: /* 275mA */ @@ -226,13 +234,13 @@ static int isl6423_set_current(struct dvb_frontend *fe) switch (config->curlim) { case SEC_CURRENT_LIM_ON: - /* DCL = 1 */ - reg_3 |= 0x10; + /* DCL = 0 */ + reg_3 &= ~0x10; break; case SEC_CURRENT_LIM_OFF: - /* DCL = 0 */ - reg_3 &= ~0x10; + /* DCL = 1 */ + reg_3 |= 0x10; break; } @@ -240,6 +248,8 @@ static int isl6423_set_current(struct dvb_frontend *fe) if (err < 0) goto exit; + isl6423->reg_3 = reg_3; + return 0; exit: dprintk(FE_ERROR, 1, "I/O error <%d>", err); @@ -268,6 +278,11 @@ struct dvb_frontend *isl6423_attach(struct dvb_frontend *fe, isl6423->i2c = i2c; fe->sec_priv = isl6423; + /* SR3H = 0, SR3M = 1, SR3L = 0 */ + isl6423->reg_3 = 0x02 << 5; + /* SR4H = 0, SR4M = 1, SR4L = 1 */ + isl6423->reg_4 = 0x03 << 5; + if (isl6423_set_current(fe)) goto exit; |