diff options
| author | Andrew de Quincey <adq_dvb@lidskialf.net> | 2006-07-28 23:10:17 +0100 |
|---|---|---|
| committer | Andrew de Quincey <adq_dvb@lidskialf.net> | 2006-07-28 23:10:17 +0100 |
| commit | 52eaaa8dff6907aae78b53fc2944769bf03cddc8 (patch) | |
| tree | 62125344254ad6c8d4879a83281f13e47e739aac /linux/drivers/media/dvb | |
| parent | 830851182365a2c7ecd43f52d45ad5afe98f73c1 (diff) | |
| download | mediapointer-dvb-s2-52eaaa8dff6907aae78b53fc2944769bf03cddc8.tar.gz mediapointer-dvb-s2-52eaaa8dff6907aae78b53fc2944769bf03cddc8.tar.bz2 | |
Add dvb_attach() macro and supporting routines
From: Andrew de Quincey <adq_dvb@lidskialf.net>
Add dvb_attach() macro and supporting routines
Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Acked-by: Michael Krufky <mkrufky@linuxtv.org>
Acked-by: Trent Piepho <xyzzy@speakeasy.org>
Diffstat (limited to 'linux/drivers/media/dvb')
| -rw-r--r-- | linux/drivers/media/dvb/b2c2/flexcop-fe-tuner.c | 2 | ||||
| -rw-r--r-- | linux/drivers/media/dvb/dvb-core/dvb_frontend.c | 12 | ||||
| -rw-r--r-- | linux/drivers/media/dvb/dvb-core/dvbdev.h | 54 |
3 files changed, 56 insertions, 12 deletions
diff --git a/linux/drivers/media/dvb/b2c2/flexcop-fe-tuner.c b/linux/drivers/media/dvb/b2c2/flexcop-fe-tuner.c index 150e75082..0647973a6 100644 --- a/linux/drivers/media/dvb/b2c2/flexcop-fe-tuner.c +++ b/linux/drivers/media/dvb/b2c2/flexcop-fe-tuner.c @@ -538,7 +538,7 @@ int flexcop_frontend_init(struct flexcop_device *fc) /* try the air atsc 2nd generation (nxt2002) */ if ((fc->fe = nxt200x_attach(&samsung_tbmv_config, &fc->i2c_adap)) != NULL) { fc->dev_type = FC_AIR_ATSC2; - dvb_pll_attach(fc->fe, 0x61, &fc->i2c_adap, &dvb_pll_samsung_tbmv); + dvb_attach(dvb_pll_attach, fc->fe, 0x61, &fc->i2c_adap, &dvb_pll_samsung_tbmv); info("found the nxt2002 at i2c address: 0x%02x",samsung_tbmv_config.demod_address); } else /* try the air atsc 3nd generation (lgdt3303) */ diff --git a/linux/drivers/media/dvb/dvb-core/dvb_frontend.c b/linux/drivers/media/dvb/dvb-core/dvb_frontend.c index 46e16f8b3..35bebb267 100644 --- a/linux/drivers/media/dvb/dvb-core/dvb_frontend.c +++ b/linux/drivers/media/dvb/dvb-core/dvb_frontend.c @@ -1111,17 +1111,7 @@ int dvb_unregister_frontend(struct dvb_frontend* fe) mutex_lock(&frontend_mutex); dvb_unregister_device (fepriv->dvbdev); dvb_frontend_stop (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.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); diff --git a/linux/drivers/media/dvb/dvb-core/dvbdev.h b/linux/drivers/media/dvb/dvb-core/dvbdev.h index 1e7c036d5..1375d3a8e 100644 --- a/linux/drivers/media/dvb/dvb-core/dvbdev.h +++ b/linux/drivers/media/dvb/dvb-core/dvbdev.h @@ -103,4 +103,58 @@ extern int dvb_usercopy(struct inode *inode, struct file *file, int (*func)(struct inode *inode, struct file *file, unsigned int cmd, void *arg)); +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,17)) + +/** 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; \ +}) + +#define dvb_detach(FUNCPTR, ARGS...) ({ \ + typeof((FUNCPTR)) __funcptrtmp = FUNCPTR; \ + if (__funcptrtmp) { \ + __funcptrtmp(ARGS); \ + symbol_put_addr(__funcptrtmp); \ + } \ + FUNCPTR = NULL; \ +}) + +#else +#define dvb_attach(FUNCTION, ARGS...) ({ \ + FUNCTION(ARGS); \ +}) + +#define dvb_detach(FUNCPTR, ARGS...) \ +do { \ + if (FUNCPTR) \ + FUNCPTR(ARGS); \ + FUNCPTR = NULL; \ +} while(0) + +#endif + +#else +#define dvb_attach(FUNCTION, ARGS...) ({ \ + FUNCTION(ARGS); \ +}) + +#define dvb_detach(FUNCPTR, ARGS...) \ +do { \ + if (FUNCPTR) \ + FUNCPTR(ARGS); \ + FUNCPTR = NULL; \ +} while(0) + +#endif + #endif /* #ifndef _DVBDEV_H_ */ |