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authorOliver Endriss <o.endriss@gmx.de>2008-04-20 21:57:34 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2008-04-24 14:09:45 -0300
commite84b133e329ddad725907844c285efcd35dae39d (patch)
treec9cda47857845b8bdd88bd5411a90301efbbad0d
parent94ad6de7051a9eb6beda096144c5b409538eab86 (diff)
V4L/DVB (7661): stv0299: Add flag to turn off OP0 output
Add flag to turn off OP0 output. Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
-rw-r--r--drivers/media/dvb/frontends/stv0299.c45
-rw-r--r--drivers/media/dvb/frontends/stv0299.h3
2 files changed, 33 insertions, 15 deletions
diff --git a/drivers/media/dvb/frontends/stv0299.c b/drivers/media/dvb/frontends/stv0299.c
index f7c36741537d..17556183e871 100644
--- a/drivers/media/dvb/frontends/stv0299.c
+++ b/drivers/media/dvb/frontends/stv0299.c
@@ -366,26 +366,32 @@ static int stv0299_set_voltage (struct dvb_frontend* fe, fe_sec_voltage_t voltag
* H/V switching over OP0, OP1 and OP2 are LNB power enable bits
*/
reg0x0c &= 0x0f;
-
- if (voltage == SEC_VOLTAGE_OFF) {
- stv0299_writeregI (state, 0x0c, 0x00); /* LNB power off! */
- return stv0299_writeregI (state, 0x08, 0x00); /* LNB power off! */
- }
-
- stv0299_writeregI (state, 0x08, (reg0x08 & 0x3f) | (state->config->lock_output << 6));
+ reg0x08 = (reg0x08 & 0x3f) | (state->config->lock_output << 6);
switch (voltage) {
case SEC_VOLTAGE_13:
- if (state->config->volt13_op0_op1 == STV0299_VOLT13_OP0) reg0x0c |= 0x10;
- else reg0x0c |= 0x40;
-
- return stv0299_writeregI(state, 0x0c, reg0x0c);
-
+ if (state->config->volt13_op0_op1 == STV0299_VOLT13_OP0)
+ reg0x0c |= 0x10; /* OP1 off, OP0 on */
+ else
+ reg0x0c |= 0x40; /* OP1 on, OP0 off */
+ break;
case SEC_VOLTAGE_18:
- return stv0299_writeregI(state, 0x0c, reg0x0c | 0x50);
+ reg0x0c |= 0x50; /* OP1 on, OP0 on */
+ break;
+ case SEC_VOLTAGE_OFF:
+ /* LNB power off! */
+ reg0x08 = 0x00;
+ reg0x0c = 0x00;
+ break;
default:
return -EINVAL;
};
+
+ if (state->config->op0_off)
+ reg0x0c &= ~0x10;
+
+ stv0299_writeregI(state, 0x08, reg0x08);
+ return stv0299_writeregI(state, 0x0c, reg0x0c);
}
static int stv0299_send_legacy_dish_cmd (struct dvb_frontend* fe, unsigned long cmd)
@@ -445,11 +451,20 @@ static int stv0299_init (struct dvb_frontend* fe)
{
struct stv0299_state* state = fe->demodulator_priv;
int i;
+ u8 reg;
+ u8 val;
dprintk("stv0299: init chip\n");
- for (i=0; !(state->config->inittab[i] == 0xff && state->config->inittab[i+1] == 0xff); i+=2)
- stv0299_writeregI(state, state->config->inittab[i], state->config->inittab[i+1]);
+ for (i = 0; ; i += 2) {
+ reg = state->config->inittab[i];
+ val = state->config->inittab[i+1];
+ if (reg == 0xff && val == 0xff)
+ break;
+ if (reg == 0x0c && state->config->op0_off)
+ val &= ~0x10;
+ stv0299_writeregI(state, reg, val);
+ }
return 0;
}
diff --git a/drivers/media/dvb/frontends/stv0299.h b/drivers/media/dvb/frontends/stv0299.h
index 84eaeb518540..abd9cf8153cf 100644
--- a/drivers/media/dvb/frontends/stv0299.h
+++ b/drivers/media/dvb/frontends/stv0299.h
@@ -82,6 +82,9 @@ struct stv0299_config
/* Is 13v controlled by OP0 or OP1? */
u8 volt13_op0_op1:1;
+ /* Turn-off OP0? */
+ u8 op0_off:1;
+
/* minimum delay before retuning */
int min_delay_ms;