From 78e92006f410a4044f8c1760c25ac9d11d259aa2 Mon Sep 17 00:00:00 2001 From: Janne Grunau Date: Wed, 9 Apr 2008 19:13:13 -0300 Subject: V4L/DVB (7538): Adds selectable adapter numbers as per module option The adapter_nr module options can be used to allocate static adapter numbers on a driver level. It avoids problems with changing DVB apapter numbers after warm/cold boot or device unplugging and repluging. Each driver holds DVB_MAX_ADAPTER long array of the preferred order of adapter numbers. options dvb-usb-dib0700 adapter_nr=7,6,5,4,3,2,1,0 would result in a reversed allocation of adapter numbers. With adapter_nr=2,5 it tries first to get adapter number 2 and 5. If both are already in use it will allocate the lowest free adapter number. Signed-off-by: Janne Grunau Acked-by: Hermann Pitton Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx23885/cx23885-dvb.c | 4 +++- drivers/media/video/cx88/cx88-dvb.c | 5 ++++- drivers/media/video/saa7134/saa7134-dvb.c | 5 ++++- drivers/media/video/videobuf-dvb.c | 6 ++++-- 4 files changed, 15 insertions(+), 5 deletions(-) (limited to 'drivers/media/video') diff --git a/drivers/media/video/cx23885/cx23885-dvb.c b/drivers/media/video/cx23885/cx23885-dvb.c index 74baa28d16a..1a720abbd06 100644 --- a/drivers/media/video/cx23885/cx23885-dvb.c +++ b/drivers/media/video/cx23885/cx23885-dvb.c @@ -54,6 +54,8 @@ static unsigned int alt_tuner; module_param(alt_tuner, int, 0644); MODULE_PARM_DESC(alt_tuner, "Enable alternate tuner configuration"); +DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); + /* ------------------------------------------------------------------ */ static int dvb_buf_setup(struct videobuf_queue *q, @@ -333,7 +335,7 @@ static int dvb_register(struct cx23885_tsport *port) /* register everything */ return videobuf_dvb_register(&port->dvb, THIS_MODULE, port, - &dev->pci->dev); + &dev->pci->dev, adapter_nr); } int cx23885_dvb_register(struct cx23885_tsport *port) diff --git a/drivers/media/video/cx88/cx88-dvb.c b/drivers/media/video/cx88/cx88-dvb.c index e83d9869e68..fda7334d934 100644 --- a/drivers/media/video/cx88/cx88-dvb.c +++ b/drivers/media/video/cx88/cx88-dvb.c @@ -58,6 +58,8 @@ static unsigned int debug; module_param(debug, int, 0644); MODULE_PARM_DESC(debug,"enable debug messages [dvb]"); +DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); + #define dprintk(level,fmt, arg...) if (debug >= level) \ printk(KERN_DEBUG "%s/2-dvb: " fmt, core->name, ## arg) @@ -862,7 +864,8 @@ static int dvb_register(struct cx8802_dev *dev) cx88_call_i2c_clients (dev->core, TUNER_SET_STANDBY, NULL); /* register everything */ - return videobuf_dvb_register(&dev->dvb, THIS_MODULE, dev, &dev->pci->dev); + return videobuf_dvb_register(&dev->dvb, THIS_MODULE, dev, + &dev->pci->dev, adapter_nr); } /* ----------------------------------------------------------- */ diff --git a/drivers/media/video/saa7134/saa7134-dvb.c b/drivers/media/video/saa7134/saa7134-dvb.c index e5c3569dd2c..73154c1a023 100644 --- a/drivers/media/video/saa7134/saa7134-dvb.c +++ b/drivers/media/video/saa7134/saa7134-dvb.c @@ -65,6 +65,8 @@ static int debug; module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "Turn on/off module debugging (default:off)."); +DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); + #define dprintk(fmt, arg...) do { if (debug) \ printk(KERN_DEBUG "%s/dvb: " fmt, dev->name , ## arg); } while(0) @@ -1257,7 +1259,8 @@ static int dvb_init(struct saa7134_dev *dev) } /* register everything else */ - ret = videobuf_dvb_register(&dev->dvb, THIS_MODULE, dev, &dev->pci->dev); + ret = videobuf_dvb_register(&dev->dvb, THIS_MODULE, dev, &dev->pci->dev, + adapter_nr); /* this sequence is necessary to make the tda1004x load its firmware * and to enter analog mode of hybrid boards diff --git a/drivers/media/video/videobuf-dvb.c b/drivers/media/video/videobuf-dvb.c index 4ba8b7db7fd..0f8542a4c71 100644 --- a/drivers/media/video/videobuf-dvb.c +++ b/drivers/media/video/videobuf-dvb.c @@ -138,14 +138,16 @@ static int videobuf_dvb_stop_feed(struct dvb_demux_feed *feed) int videobuf_dvb_register(struct videobuf_dvb *dvb, struct module *module, void *adapter_priv, - struct device *device) + struct device *device, + short *adapter_nr) { int result; mutex_init(&dvb->lock); /* register adapter */ - result = dvb_register_adapter(&dvb->adapter, dvb->name, module, device); + result = dvb_register_adapter(&dvb->adapter, dvb->name, module, device, + adapter_nr); if (result < 0) { printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n", dvb->name, result); -- cgit v1.2.3