[DVB patch 18/54] frontend: cx24110: DiSEqC fix

Johannes Stezenbach
2005-09-04T23:34:48Z

[-- Attachment #1: dvb-frontend-cx24110-diseqc-fix.patch --]
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Fix DiSEqC switching (one bug fix suggested by Peter Hettkamp, and one
experimentally determined msleep(30) suggested by Adam Szalkowski).

Signed-off-by: Johannes Stezenbach <js@linuxtv.org>

drivers/media/dvb/frontends/cx24110.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

--- linux-2.6.13-git4.orig/drivers/media/dvb/frontends/cx24110.c 2005-09-04 22:27:47.000000000 +0200
+++ linux-2.6.13-git4/drivers/media/dvb/frontends/cx24110.c 2005-09-04 22:28:09.000000000 +0200
@@ -398,7 +398,7 @@ static int cx24110_diseqc_send_burst(str
return -EINVAL;

rv = cx24110_readreg(state, 0x77);
- cx24110_writereg(state, 0x77, rv|0x04);
+ cx24110_writereg(state, 0x77, rv | 0x04);

rv = cx24110_readreg(state, 0x76);
cx24110_writereg(state, 0x76, ((rv & 0x90) | 0x40 | bit));
@@ -418,7 +418,8 @@ static int cx24110_send_diseqc_msg(struc
cx24110_writereg(state, 0x79 + i, cmd->msg[i]);

rv = cx24110_readreg(state, 0x77);
- cx24110_writereg(state, 0x77, rv|0x04);
+ cx24110_writereg(state, 0x77, rv & ~0x04);
+ msleep(30); /* reportedly fixes switching problems */

rv = cx24110_readreg(state, 0x76);

--