diff options
Diffstat (limited to 'drivers/media/dvb/cinergyT2')
| -rw-r--r-- | drivers/media/dvb/cinergyT2/Kconfig | 20 | ||||
| -rw-r--r-- | drivers/media/dvb/cinergyT2/cinergyT2.c | 82 |
2 files changed, 65 insertions, 37 deletions
diff --git a/drivers/media/dvb/cinergyT2/Kconfig b/drivers/media/dvb/cinergyT2/Kconfig index 7cf4c4a888ec..6018fcdba1e6 100644 --- a/drivers/media/dvb/cinergyT2/Kconfig +++ b/drivers/media/dvb/cinergyT2/Kconfig @@ -21,35 +21,35 @@ config DVB_CINERGYT2_TUNING config DVB_CINERGYT2_STREAM_URB_COUNT int "Number of queued USB Request Blocks for Highspeed Stream Transfers" depends on DVB_CINERGYT2_TUNING - default "32" + default "32" help USB Request Blocks for Highspeed Stream transfers are scheduled in a queue for the Host Controller. Usually the default value is a safe choice. - You may increase this number if you are using this device in a - Server Environment with many high-traffic USB Highspeed devices + You may increase this number if you are using this device in a + Server Environment with many high-traffic USB Highspeed devices sharing the same USB bus. config DVB_CINERGYT2_STREAM_BUF_SIZE int "Size of URB Stream Buffers for Highspeed Transfers" depends on DVB_CINERGYT2_TUNING - default "512" + default "512" help Should be a multiple of native buffer size of 512 bytes. Default value is a safe choice. - You may increase this number if you are using this device in a - Server Environment with many high-traffic USB Highspeed devices + You may increase this number if you are using this device in a + Server Environment with many high-traffic USB Highspeed devices sharing the same USB bus. config DVB_CINERGYT2_QUERY_INTERVAL int "Status update interval [milliseconds]" depends on DVB_CINERGYT2_TUNING - default "250" + default "250" help This is the interval for status readouts from the demodulator. You may try lower values if you need more responsive signal quality @@ -64,9 +64,9 @@ config DVB_CINERGYT2_QUERY_INTERVAL config DVB_CINERGYT2_ENABLE_RC_INPUT_DEVICE bool "Register the onboard IR Remote Control Receiver as Input Device" depends on DVB_CINERGYT2_TUNING - default "yes" + default "yes" help - Enable this option if you want to use the onboard Infrared Remote + Enable this option if you want to use the onboard Infrared Remote Control Receiver as Linux-Input device. Right now only the keycode table for the default Remote Control @@ -77,7 +77,7 @@ config DVB_CINERGYT2_ENABLE_RC_INPUT_DEVICE config DVB_CINERGYT2_RC_QUERY_INTERVAL int "Infrared Remote Controller update interval [milliseconds]" depends on DVB_CINERGYT2_TUNING && DVB_CINERGYT2_ENABLE_RC_INPUT_DEVICE - default "50" + default "50" help If you have a very fast-repeating remote control you can try lower values, for normal consumer receivers the default value should be diff --git a/drivers/media/dvb/cinergyT2/cinergyT2.c b/drivers/media/dvb/cinergyT2/cinergyT2.c index 1d69bf031fb9..c4b4c5b6b7c8 100644 --- a/drivers/media/dvb/cinergyT2/cinergyT2.c +++ b/drivers/media/dvb/cinergyT2/cinergyT2.c @@ -131,6 +131,8 @@ struct cinergyt2 { wait_queue_head_t poll_wq; int pending_fe_events; + int disconnect_pending; + atomic_t inuse; void *streambuf; dma_addr_t streambuf_dmahandle; @@ -343,7 +345,7 @@ static int cinergyt2_start_feed(struct dvb_demux_feed *dvbdmxfeed) struct dvb_demux *demux = dvbdmxfeed->demux; struct cinergyt2 *cinergyt2 = demux->priv; - if (down_interruptible(&cinergyt2->sem)) + if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem)) return -ERESTARTSYS; if (cinergyt2->streaming == 0) @@ -359,7 +361,7 @@ static int cinergyt2_stop_feed(struct dvb_demux_feed *dvbdmxfeed) struct dvb_demux *demux = dvbdmxfeed->demux; struct cinergyt2 *cinergyt2 = demux->priv; - if (down_interruptible(&cinergyt2->sem)) + if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem)) return -ERESTARTSYS; if (--cinergyt2->streaming == 0) @@ -479,23 +481,37 @@ static int cinergyt2_open (struct inode *inode, struct file *file) { struct dvb_device *dvbdev = file->private_data; struct cinergyt2 *cinergyt2 = dvbdev->priv; - int err; + int err = -ERESTARTSYS; - if ((err = dvb_generic_open(inode, file))) + if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem)) + return -ERESTARTSYS; + + if ((err = dvb_generic_open(inode, file))) { + up(&cinergyt2->sem); return err; + } - if (down_interruptible(&cinergyt2->sem)) - return -ERESTARTSYS; if ((file->f_flags & O_ACCMODE) != O_RDONLY) { cinergyt2_sleep(cinergyt2, 0); schedule_delayed_work(&cinergyt2->query_work, HZ/2); } + atomic_inc(&cinergyt2->inuse); + up(&cinergyt2->sem); return 0; } +static void cinergyt2_unregister(struct cinergyt2 *cinergyt2) +{ + dvb_unregister_device(cinergyt2->fedev); + dvb_unregister_adapter(&cinergyt2->adapter); + + cinergyt2_free_stream_urbs(cinergyt2); + kfree(cinergyt2); +} + static int cinergyt2_release (struct inode *inode, struct file *file) { struct dvb_device *dvbdev = file->private_data; @@ -504,7 +520,7 @@ static int cinergyt2_release (struct inode *inode, struct file *file) if (down_interruptible(&cinergyt2->sem)) return -ERESTARTSYS; - if ((file->f_flags & O_ACCMODE) != O_RDONLY) { + if (!cinergyt2->disconnect_pending && (file->f_flags & O_ACCMODE) != O_RDONLY) { cancel_delayed_work(&cinergyt2->query_work); flush_scheduled_work(); cinergyt2_sleep(cinergyt2, 1); @@ -512,6 +528,11 @@ static int cinergyt2_release (struct inode *inode, struct file *file) up(&cinergyt2->sem); + if (atomic_dec_and_test(&cinergyt2->inuse) && cinergyt2->disconnect_pending) { + warn("delayed unregister in release"); + cinergyt2_unregister(cinergyt2); + } + return dvb_generic_release(inode, file); } @@ -519,7 +540,14 @@ static unsigned int cinergyt2_poll (struct file *file, struct poll_table_struct { struct dvb_device *dvbdev = file->private_data; struct cinergyt2 *cinergyt2 = dvbdev->priv; + + if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem)) + return -ERESTARTSYS; + poll_wait(file, &cinergyt2->poll_wq, wait); + + up(&cinergyt2->sem); + return (POLLIN | POLLRDNORM | POLLPRI); } @@ -564,10 +592,15 @@ static int cinergyt2_ioctl (struct inode *inode, struct file *file, (__u16 __user *) arg); case FE_READ_UNCORRECTED_BLOCKS: - /* UNC are already converted to host byte order... */ - return put_user(stat->uncorrected_block_count, - (__u32 __user *) arg); + { + uint32_t unc_count; + + unc_count = stat->uncorrected_block_count; + stat->uncorrected_block_count = 0; + /* UNC are already converted to host byte order... */ + return put_user(unc_count,(__u32 __user *) arg); + } case FE_SET_FRONTEND: { struct dvbt_set_parameters_msg *param = &cinergyt2->param; @@ -580,7 +613,7 @@ static int cinergyt2_ioctl (struct inode *inode, struct file *file, if (copy_from_user(&p, (void __user*) arg, sizeof(p))) return -EFAULT; - if (down_interruptible(&cinergyt2->sem)) + if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem)) return -ERESTARTSYS; param->cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS; @@ -691,7 +724,7 @@ static void cinergyt2_query_rc (void *data) struct cinergyt2_rc_event rc_events[12]; int n, len, i; - if (down_interruptible(&cinergyt2->sem)) + if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem)) return; len = cinergyt2_command(cinergyt2, buf, sizeof(buf), @@ -786,7 +819,6 @@ static int cinergyt2_register_rc(struct cinergyt2 *cinergyt2) static void cinergyt2_unregister_rc(struct cinergyt2 *cinergyt2) { cancel_delayed_work(&cinergyt2->rc_query_work); - flush_scheduled_work(); input_unregister_device(cinergyt2->rc_input_dev); } @@ -817,7 +849,7 @@ static void cinergyt2_query (void *data) uint8_t lock_bits; uint32_t unc; - if (down_interruptible(&cinergyt2->sem)) + if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem)) return; unc = s->uncorrected_block_count; @@ -917,28 +949,25 @@ static void cinergyt2_disconnect (struct usb_interface *intf) { struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf); - if (down_interruptible(&cinergyt2->sem)) - return; + flush_scheduled_work(); cinergyt2_unregister_rc(cinergyt2); + cancel_delayed_work(&cinergyt2->query_work); + wake_up_interruptible(&cinergyt2->poll_wq); + cinergyt2->demux.dmx.close(&cinergyt2->demux.dmx); - dvb_net_release(&cinergyt2->dvbnet); - dvb_dmxdev_release(&cinergyt2->dmxdev); - dvb_dmx_release(&cinergyt2->demux); - dvb_unregister_device(cinergyt2->fedev); - dvb_unregister_adapter(&cinergyt2->adapter); + cinergyt2->disconnect_pending = 1; - cinergyt2_free_stream_urbs(cinergyt2); - up(&cinergyt2->sem); - kfree(cinergyt2); + if (!atomic_read(&cinergyt2->inuse)) + cinergyt2_unregister(cinergyt2); } static int cinergyt2_suspend (struct usb_interface *intf, pm_message_t state) { struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf); - if (down_interruptible(&cinergyt2->sem)) + if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem)) return -ERESTARTSYS; if (state.event > PM_EVENT_ON) { @@ -961,7 +990,7 @@ static int cinergyt2_resume (struct usb_interface *intf) struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf); struct dvbt_set_parameters_msg *param = &cinergyt2->param; - if (down_interruptible(&cinergyt2->sem)) + if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem)) return -ERESTARTSYS; if (!cinergyt2->sleeping) { @@ -1014,4 +1043,3 @@ module_exit (cinergyt2_exit); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Holger Waechtler, Daniel Mack"); - |
