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authorMichael Krufky <mkrufky@linuxtv.org>2006-04-19 20:40:01 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2006-05-12 19:55:11 -0300
commit5691c8473936508c51639b6ff8467e55d8b129c1 (patch)
tree9b544d9de02afa35c4f2bb0c81a4c40b7d78cd8e /drivers/media/dvb/dvb-usb
parent7157e2b6ff6fdd24d7e54d9856aa24ea88527ca9 (diff)
V4L/DVB (3819): Cxusb-bluebird: bug-fix: power down corrupts frontend
This patch prevents a bug where the frontend is unable to tune after waking from powered down state. Now, the device remains powered on until it is disconnected, just like the windows driver. It seems that the bluebird firmware is unable to successfully handle tuning after a powered down state. This patch fixes all of the FusionHDTV Bluebird USB2 devices. The Medion MD95700 will still behave as before, since it was unaffected by this bug. Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/dvb/dvb-usb')
-rw-r--r--drivers/media/dvb/dvb-usb/cxusb.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/media/dvb/dvb-usb/cxusb.c b/drivers/media/dvb/dvb-usb/cxusb.c
index 7edd6362b9c..1f0d3e995c8 100644
--- a/drivers/media/dvb/dvb-usb/cxusb.c
+++ b/drivers/media/dvb/dvb-usb/cxusb.c
@@ -150,6 +150,15 @@ static int cxusb_power_ctrl(struct dvb_usb_device *d, int onoff)
return cxusb_ctrl_msg(d, CMD_POWER_OFF, &b, 1, NULL, 0);
}
+static int cxusb_bluebird_power_ctrl(struct dvb_usb_device *d, int onoff)
+{
+ u8 b = 0;
+ if (onoff)
+ return cxusb_ctrl_msg(d, CMD_POWER_ON, &b, 1, NULL, 0);
+ else
+ return 0;
+}
+
static int cxusb_streaming_ctrl(struct dvb_usb_device *d, int onoff)
{
u8 buf[2] = { 0x03, 0x00 };
@@ -544,7 +553,7 @@ static struct dvb_usb_properties cxusb_bluebird_lgh064f_properties = {
.size_of_priv = sizeof(struct cxusb_state),
.streaming_ctrl = cxusb_streaming_ctrl,
- .power_ctrl = cxusb_power_ctrl,
+ .power_ctrl = cxusb_bluebird_power_ctrl,
.frontend_attach = cxusb_lgdt3303_frontend_attach,
.tuner_attach = cxusb_lgh064f_tuner_attach,
@@ -589,7 +598,7 @@ static struct dvb_usb_properties cxusb_bluebird_dee1601_properties = {
.size_of_priv = sizeof(struct cxusb_state),
.streaming_ctrl = cxusb_streaming_ctrl,
- .power_ctrl = cxusb_power_ctrl,
+ .power_ctrl = cxusb_bluebird_power_ctrl,
.frontend_attach = cxusb_dee1601_frontend_attach,
.tuner_attach = cxusb_dee1601_tuner_attach,
@@ -638,7 +647,7 @@ static struct dvb_usb_properties cxusb_bluebird_lgz201_properties = {
.size_of_priv = sizeof(struct cxusb_state),
.streaming_ctrl = cxusb_streaming_ctrl,
- .power_ctrl = cxusb_power_ctrl,
+ .power_ctrl = cxusb_bluebird_power_ctrl,
.frontend_attach = cxusb_mt352_frontend_attach,
.tuner_attach = cxusb_lgz201_tuner_attach,
@@ -683,7 +692,7 @@ static struct dvb_usb_properties cxusb_bluebird_dtt7579_properties = {
.size_of_priv = sizeof(struct cxusb_state),
.streaming_ctrl = cxusb_streaming_ctrl,
- .power_ctrl = cxusb_power_ctrl,
+ .power_ctrl = cxusb_bluebird_power_ctrl,
.frontend_attach = cxusb_mt352_frontend_attach,
.tuner_attach = cxusb_dtt7579_tuner_attach,