diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-24 11:21:08 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-24 11:21:08 -0700 |
commit | c328d54cd4ad120d76284e46dcca6c6cf996154a (patch) | |
tree | 104c023be66faa5fce6e0a56c0a6d13c62fd21e5 /drivers/media/dvb/dvb-core/dvbdev.c | |
parent | 346ad4b7fe392571f19314f153db9151dbc1d82b (diff) | |
parent | b0166ab3a6ae6d7af8d9a21a7836154963c69a11 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb
* git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (452 commits)
V4L/DVB (7731): tuner-xc2028: fix signal strength calculus
V4L/DVB (7730): tuner-xc2028: Fix SCODE load for MTS firmwares
V4L/DVB (7729): Fix VIDIOCGAP corruption in ivtv
V4L/DVB (7728): tea5761: bugzilla #10462: tea5761 autodetection code were broken
V4L/DVB (7726): cx23885: Enable cx23417 support on the HVR1800
V4L/DVB (7725): cx23885: Add generic cx23417 hardware encoder support
V4L/DVB (7723): pvrusb2: Clean up input selection list generation in V4L interface
V4L/DVB (7722): pvrusb2: Implement FM radio support for Gotview USB2.0 DVD 2
V4L/DVB (7721): pvrusb2: Restructure cx23416 firmware loading to have a common exit point
V4L/DVB (7720): pvrusb2: Fix bad error code on cx23416 firmware load failure
V4L/DVB (7719): pvrusb2: Implement input selection enforcement
V4L/DVB (7718): pvrusb2-dvb: update Kbuild selections
V4L/DVB (7717): pvrusb2-dvb: add DVB-T support for Hauppauge pvrusb2 model 73xxx
V4L/DVB (7716): pvrusb2: clean up global functions
V4L/DVB (7715): pvrusb2: Clean out all use of __FUNCTION__
V4L/DVB (7714): pvrusb2: Fix hang on module removal
V4L/DVB (7713): pvrusb2: Implement cleaner DVB kernel thread shutdown
V4L/DVB (7712): pvrusb2: Close connect/disconnect race
V4L/DVB (7711): pvrusb2: Fix race on module unload
V4L/DVB (7710): pvrusb2: Implement critical digital streaming quirk for onair devices
...
Diffstat (limited to 'drivers/media/dvb/dvb-core/dvbdev.c')
-rw-r--r-- | drivers/media/dvb/dvb-core/dvbdev.c | 47 |
1 files changed, 34 insertions, 13 deletions
diff --git a/drivers/media/dvb/dvb-core/dvbdev.c b/drivers/media/dvb/dvb-core/dvbdev.c index 18738faecbb..8b56d929f7f 100644 --- a/drivers/media/dvb/dvb-core/dvbdev.c +++ b/drivers/media/dvb/dvb-core/dvbdev.c @@ -49,7 +49,6 @@ static const char * const dnames[] = { "net", "osd" }; -#define DVB_MAX_ADAPTERS 8 #define DVB_MAX_IDS 4 #define nums2minor(num,type,id) ((num << 6) | (id << 4) | type) #define MAX_DVB_MINORS (DVB_MAX_ADAPTERS*64) @@ -97,7 +96,7 @@ static int dvb_device_open(struct inode *inode, struct file *file) } -static struct file_operations dvb_device_fops = +static const struct file_operations dvb_device_fops = { .owner = THIS_MODULE, .open = dvb_device_open, @@ -196,7 +195,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev, if ((id = dvbdev_get_free_id (adap, type)) < 0){ mutex_unlock(&dvbdev_register_lock); *pdvbdev = NULL; - printk(KERN_ERR "%s: couldn't find free device id\n", __FUNCTION__); + printk(KERN_ERR "%s: couldn't find free device id\n", __func__); return -ENFILE; } @@ -235,7 +234,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev, "dvb%d.%s%d", adap->num, dnames[type], id); if (IS_ERR(clsdev)) { printk(KERN_ERR "%s: failed to create device dvb%d.%s%d (%ld)\n", - __FUNCTION__, adap->num, dnames[type], id, PTR_ERR(clsdev)); + __func__, adap->num, dnames[type], id, PTR_ERR(clsdev)); return PTR_ERR(clsdev); } @@ -262,18 +261,25 @@ void dvb_unregister_device(struct dvb_device *dvbdev) } EXPORT_SYMBOL(dvb_unregister_device); +static int dvbdev_check_free_adapter_num(int num) +{ + struct list_head *entry; + list_for_each(entry, &dvb_adapter_list) { + struct dvb_adapter *adap; + adap = list_entry(entry, struct dvb_adapter, list_head); + if (adap->num == num) + return 0; + } + return 1; +} static int dvbdev_get_free_adapter_num (void) { int num = 0; while (num < DVB_MAX_ADAPTERS) { - struct dvb_adapter *adap; - list_for_each_entry(adap, &dvb_adapter_list, list_head) - if (adap->num == num) - goto skip; - return num; -skip: + if (dvbdev_check_free_adapter_num(num)) + return num; num++; } @@ -281,13 +287,28 @@ skip: } -int dvb_register_adapter(struct dvb_adapter *adap, const char *name, struct module *module, struct device *device) +int dvb_register_adapter(struct dvb_adapter *adap, const char *name, + struct module *module, struct device *device, + short *adapter_nums) { - int num; + int i, num; mutex_lock(&dvbdev_register_lock); - if ((num = dvbdev_get_free_adapter_num ()) < 0) { + for (i = 0; i < DVB_MAX_ADAPTERS; ++i) { + num = adapter_nums[i]; + if (num >= 0 && num < DVB_MAX_ADAPTERS) { + /* use the one the driver asked for */ + if (dvbdev_check_free_adapter_num(num)) + break; + } else { + num = dvbdev_get_free_adapter_num(); + break; + } + num = -1; + } + + if (num < 0) { mutex_unlock(&dvbdev_register_lock); return -ENFILE; } |