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V4L/DVB (3819): Cxusb-bluebird: bug-fix: power down corrupts frontend

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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>
This commit is contained in:
Michael Krufky 2006-04-19 20:40:01 -03:00 committed by Mauro Carvalho Chehab
parent 7157e2b6ff
commit 5691c84739
1 changed files with 13 additions and 4 deletions
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17
drivers/media/dvb/dvb-usb/cxusb.c
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@ -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,