diff options
| author | Antti Palosaari <crope@iki.fi> | 2012-06-05 02:15:26 (GMT) |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-04 10:56:26 (GMT) |
| commit | e48b2a68617cfb7881e1c5e420e1a992b1e60e89 (patch) | |
| tree | 3e1ed9aef1c064b7f4ab377a2ea32568f702cf13 /drivers/media | |
| parent | e80e9af3086674bdd2d65c09557c7d0df8f30f99 (diff) | |
| download | linux-e48b2a68617cfb7881e1c5e420e1a992b1e60e89.tar.xz | |
[media] dvb_usb_v2: frontend switching changes
Some error checking changes and refactoring.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/dvb/dvb-usb/dvb_usb_dvb.c | 78 |
1 files changed, 46 insertions, 32 deletions
diff --git a/drivers/media/dvb/dvb-usb/dvb_usb_dvb.c b/drivers/media/dvb/dvb-usb/dvb_usb_dvb.c index d7c8340..e1de89a1 100644 --- a/drivers/media/dvb/dvb-usb/dvb_usb_dvb.c +++ b/drivers/media/dvb/dvb-usb/dvb_usb_dvb.c @@ -68,12 +68,9 @@ static int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff) struct dvb_usb_adapter *adap = dvbdmxfeed->demux->priv; int newfeedcount, ret; - if (adap == NULL) - return -ENODEV; - - if ((adap->active_fe < 0) || - (adap->active_fe >= adap->num_frontends_initialized)) { - return -EINVAL; + if (adap == NULL || adap->active_fe < 0) { + ret = -ENODEV; + goto err; } newfeedcount = adap->feedcount + (onoff ? 1 : -1); @@ -168,6 +165,9 @@ static int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff) } return 0; +err: + pr_debug("%s: failed=%d\n", __func__, ret); + return ret; } static int dvb_usb_start_feed(struct dvb_demux_feed *dvbdmxfeed) @@ -264,47 +264,62 @@ int dvb_usb_adapter_dvb_exit(struct dvb_usb_adapter *adap) return 0; } -static int dvb_usb_set_active_fe(struct dvb_frontend *fe, int onoff) +static int dvb_usb_fe_wakeup(struct dvb_frontend *fe) { + int ret; struct dvb_usb_adapter *adap = fe->dvb->priv; - int ret = (adap->props.frontend_ctrl) ? - adap->props.frontend_ctrl(fe, onoff) : 0; + ret = dvb_usb_device_power_ctrl(adap->dev, 1); + if (ret < 0) + goto err; - if (ret < 0) { - err("frontend_ctrl request failed"); - return ret; + if (adap->props.frontend_ctrl) { + ret = adap->props.frontend_ctrl(fe, 1); + if (ret < 0) + goto err; } - if (onoff) - adap->active_fe = fe->id; - - return 0; -} - -static int dvb_usb_fe_wakeup(struct dvb_frontend *fe) -{ - struct dvb_usb_adapter *adap = fe->dvb->priv; - - dvb_usb_device_power_ctrl(adap->dev, 1); - dvb_usb_set_active_fe(fe, 1); + if (adap->fe_init[fe->id]) { + ret = adap->fe_init[fe->id](fe); + if (ret < 0) + goto err; + } - if (adap->fe_init[fe->id]) - adap->fe_init[fe->id](fe); + adap->active_fe = fe->id; return 0; +err: + pr_debug("%s: failed=%d\n", __func__, ret); + return ret; } static int dvb_usb_fe_sleep(struct dvb_frontend *fe) { + int ret; struct dvb_usb_adapter *adap = fe->dvb->priv; - if (adap->fe_sleep[fe->id]) - adap->fe_sleep[fe->id](fe); + if (adap->fe_sleep[fe->id]) { + ret = adap->fe_sleep[fe->id](fe); + if (ret < 0) + goto err; + } - dvb_usb_set_active_fe(fe, 0); + if (adap->props.frontend_ctrl) { + ret = adap->props.frontend_ctrl(fe, 0); + if (ret < 0) + goto err; + } - return dvb_usb_device_power_ctrl(adap->dev, 0); + ret = dvb_usb_device_power_ctrl(adap->dev, 0); + if (ret < 0) + goto err; + + adap->active_fe = -1; + + return 0; +err: + pr_debug("%s: failed=%d\n", __func__, ret); + return ret; } int dvb_usb_adapter_frontend_init(struct dvb_usb_adapter *adap) @@ -312,8 +327,7 @@ int dvb_usb_adapter_frontend_init(struct dvb_usb_adapter *adap) int ret, i; memset(adap->fe, 0, sizeof(adap->fe)); - - adap->active_fe = 0; + adap->active_fe = -1; if (adap->props.frontend_attach == NULL) { err("strange: '%s' doesn't want to attach a frontend.", |