diff options
author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-30 09:39:15 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-30 09:39:15 -0700 |
commit | 5ffd1a6aaacc25be8cd0770a51ec6d46add3a276 (patch) | |
tree | 5b076c44f8b7ff88dba9a554d7748c6f083c9071 /drivers/media/dvb/dvb-core | |
parent | 0cd43f83d381c4246a08cd775834833d6fd64805 (diff) | |
parent | 8dd86eebc5315910ebfd9f30f1674254308be4b3 (diff) |
Merge master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb
* master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (180 commits)
V4L/DVB (4641): Trivial: use lowercase letters in hex subsystem ids
V4L/DVB (4639): Cx88: add autodetection for alternate revision of Leadtek PVR
V4L/DVB (4638): Basic DVB-T and analog TV support for the HVR1300.
V4L/DVB (4637): Add a default method for VIDIOC_G_PARM
V4L/DVB (4635): Extend bttv and saa7134 to check for both AGP and PCI PCI failure case
V4L/DVB (4634): Zr36120: implement pcipci checks
V4L/DVB (4632): Zoran: Implement pcipci failure check
V4L/DVB (4631): Av7110: remove V4L2_CAP_VBI_CAPTURE flag
V4L/DVB (4630): Av7110: FW_LOADER depemdency fixed
V4L/DVB (4629): Saa7134: add card support for Proteus Pro 2309
V4L/DVB (4628): Fix VIDIOC_ENUMSTD ioctl in videodev.c
V4L/DVB (4627): Vivi crashes with mplayer
V4L/DVB (4626): On saa7111/7113, LUMA_CTRL need a different value
V4L/DVB (4624): Tvaudio: Replaced kernel_thread() with kthread_run()
V4L/DVB (4622): Copy-paste bug in videodev.c
V4L/DVB (4620): Fix AGC configuration for MOD3000P-based boards
V4L/DVB (4619): Fixes some I2C dependencies on V4L devices
V4L/DVB (4617): Problem with dibusb-mb.c USB IDs
V4L/DVB (4616): [PATCH] Nebula DigiTV USB RC support
V4L/DVB (4614): Export symbol saa7134_tvaudio_setmute from saa7134 for saa7134-alsa
...
Diffstat (limited to 'drivers/media/dvb/dvb-core')
-rw-r--r-- | drivers/media/dvb/dvb-core/Kconfig | 13 | ||||
-rw-r--r-- | drivers/media/dvb/dvb-core/dvb_frontend.c | 42 | ||||
-rw-r--r-- | drivers/media/dvb/dvb-core/dvb_frontend.h | 7 | ||||
-rw-r--r-- | drivers/media/dvb/dvb-core/dvbdev.h | 22 |
4 files changed, 74 insertions, 10 deletions
diff --git a/drivers/media/dvb/dvb-core/Kconfig b/drivers/media/dvb/dvb-core/Kconfig index 12ee912a570..e46eae3b9be 100644 --- a/drivers/media/dvb/dvb-core/Kconfig +++ b/drivers/media/dvb/dvb-core/Kconfig @@ -9,3 +9,16 @@ config DVB_CORE in-kernel drivers will select this automatically if needed. If unsure say N. +config DVB_CORE_ATTACH + bool "Load and attach frontend modules as needed" + depends on DVB_CORE + depends on MODULES + help + Remove the static dependency of DVB card drivers on all + frontend modules for all possible card variants. Instead, + allow the card drivers to only load the frontend modules + they require. This saves several KBytes of memory. + + Note: You will need moudule-init-tools v3.2 or later for this feature. + + If unsure say Y. diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c index 57b34cda99f..3dd5dbafb33 100644 --- a/drivers/media/dvb/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb/dvb-core/dvb_frontend.c @@ -1105,18 +1105,42 @@ int dvb_unregister_frontend(struct dvb_frontend* fe) mutex_lock(&frontend_mutex); dvb_unregister_device (fepriv->dvbdev); dvb_frontend_stop (fe); - if (fe->ops.tuner_ops.release) { - fe->ops.tuner_ops.release(fe); - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 0); - } - if (fe->ops.release) - fe->ops.release(fe); - else - printk("dvb_frontend: Demodulator (%s) does not have a release callback!\n", fe->ops.info.name); + /* fe is invalid now */ kfree(fepriv); mutex_unlock(&frontend_mutex); return 0; } EXPORT_SYMBOL(dvb_unregister_frontend); + +#ifdef CONFIG_DVB_CORE_ATTACH +void dvb_frontend_detach(struct dvb_frontend* fe) +{ + void *ptr; + + if (fe->ops.release_sec) { + fe->ops.release_sec(fe); + symbol_put_addr(fe->ops.release_sec); + } + if (fe->ops.tuner_ops.release) { + fe->ops.tuner_ops.release(fe); + symbol_put_addr(fe->ops.tuner_ops.release); + } + ptr = (void*)fe->ops.release; + if (ptr) { + fe->ops.release(fe); + symbol_put_addr(ptr); + } +} +#else +void dvb_frontend_detach(struct dvb_frontend* fe) +{ + if (fe->ops.release_sec) + fe->ops.release_sec(fe); + if (fe->ops.tuner_ops.release) + fe->ops.tuner_ops.release(fe); + if (fe->ops.release) + fe->ops.release(fe); +} +#endif +EXPORT_SYMBOL(dvb_frontend_detach); diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.h b/drivers/media/dvb/dvb-core/dvb_frontend.h index 2887e2b862a..e5d5028b369 100644 --- a/drivers/media/dvb/dvb-core/dvb_frontend.h +++ b/drivers/media/dvb/dvb-core/dvb_frontend.h @@ -92,10 +92,13 @@ struct dvb_frontend_ops { struct dvb_frontend_info info; void (*release)(struct dvb_frontend* fe); + void (*release_sec)(struct dvb_frontend* fe); int (*init)(struct dvb_frontend* fe); int (*sleep)(struct dvb_frontend* fe); + int (*write)(struct dvb_frontend* fe, u8* buf, int len); + /* if this is set, it overrides the default swzigzag */ int (*tune)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params, @@ -147,7 +150,7 @@ struct dvb_frontend { void* demodulator_priv; void* tuner_priv; void* frontend_priv; - void* misc_priv; + void* sec_priv; }; extern int dvb_register_frontend(struct dvb_adapter* dvb, @@ -155,6 +158,8 @@ extern int dvb_register_frontend(struct dvb_adapter* dvb, extern int dvb_unregister_frontend(struct dvb_frontend* fe); +extern void dvb_frontend_detach(struct dvb_frontend* fe); + extern void dvb_frontend_reinitialise(struct dvb_frontend *fe); extern void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec); diff --git a/drivers/media/dvb/dvb-core/dvbdev.h b/drivers/media/dvb/dvb-core/dvbdev.h index 7a7f75fd168..620e7887b3d 100644 --- a/drivers/media/dvb/dvb-core/dvbdev.h +++ b/drivers/media/dvb/dvb-core/dvbdev.h @@ -102,4 +102,26 @@ extern int dvb_usercopy(struct inode *inode, struct file *file, int (*func)(struct inode *inode, struct file *file, unsigned int cmd, void *arg)); +/** generic DVB attach function. */ +#ifdef CONFIG_DVB_CORE_ATTACH +#define dvb_attach(FUNCTION, ARGS...) ({ \ + void *__r = NULL; \ + typeof(&FUNCTION) __a = symbol_request(FUNCTION); \ + if (__a) { \ + __r = (void *) __a(ARGS); \ + if (__r == NULL) \ + symbol_put(FUNCTION); \ + } else { \ + printk(KERN_ERR "DVB: Unable to find symbol "#FUNCTION"()\n"); \ + } \ + __r; \ +}) + +#else +#define dvb_attach(FUNCTION, ARGS...) ({ \ + FUNCTION(ARGS); \ +}) + +#endif + #endif /* #ifndef _DVBDEV_H_ */ |