diff options
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx-cards.c | 20 | ||||
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx-core.c | 8 | ||||
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx-dvb.c | 4 | ||||
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx-video.c | 2 | ||||
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx.h | 14 |
5 files changed, 26 insertions, 22 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-cards.c b/drivers/media/usb/em28xx/em28xx-cards.c index bfce34d491c0..873b52f71ab2 100644 --- a/drivers/media/usb/em28xx/em28xx-cards.c +++ b/drivers/media/usb/em28xx/em28xx-cards.c @@ -3183,9 +3183,10 @@ static int em28xx_usb_probe(struct usb_interface *interface, } /* compute alternate max packet sizes */ - dev->alt_max_pkt_size = kmalloc(sizeof(dev->alt_max_pkt_size[0]) * + dev->alt_max_pkt_size_isoc = + kmalloc(sizeof(dev->alt_max_pkt_size_isoc[0]) * interface->num_altsetting, GFP_KERNEL); - if (dev->alt_max_pkt_size == NULL) { + if (dev->alt_max_pkt_size_isoc == NULL) { em28xx_errdev("out of memory!\n"); kfree(dev); retval = -ENOMEM; @@ -3216,13 +3217,14 @@ static int em28xx_usb_probe(struct usb_interface *interface, break; case EM28XX_EP_ANALOG: has_video = true; - dev->alt_max_pkt_size[i] = size; + dev->alt_max_pkt_size_isoc[i] = size; break; case EM28XX_EP_DIGITAL: has_dvb = true; - if (size > dev->dvb_max_pkt_size) { - dev->dvb_max_pkt_size = size; - dev->dvb_alt = i; + if (size > dev->dvb_max_pkt_size_isoc) { + dev->dvb_max_pkt_size_isoc = + size; + dev->dvb_alt_isoc = i; } break; } @@ -3324,7 +3326,7 @@ static int em28xx_usb_probe(struct usb_interface *interface, /* pre-allocate DVB isoc transfer buffers */ retval = em28xx_alloc_urbs(dev, EM28XX_DIGITAL_MODE, 0, EM28XX_DVB_NUM_BUFS, - dev->dvb_max_pkt_size, + dev->dvb_max_pkt_size_isoc, EM28XX_DVB_NUM_ISOC_PACKETS); if (retval) { goto unlock_and_free; @@ -3344,7 +3346,7 @@ unlock_and_free: mutex_unlock(&dev->lock); err_free: - kfree(dev->alt_max_pkt_size); + kfree(dev->alt_max_pkt_size_isoc); kfree(dev); err: @@ -3409,7 +3411,7 @@ static void em28xx_usb_disconnect(struct usb_interface *interface) em28xx_close_extension(dev); if (!dev->users) { - kfree(dev->alt_max_pkt_size); + kfree(dev->alt_max_pkt_size_isoc); kfree(dev); } } diff --git a/drivers/media/usb/em28xx/em28xx-core.c b/drivers/media/usb/em28xx/em28xx-core.c index 6b3485d2266a..3c40a1da69b6 100644 --- a/drivers/media/usb/em28xx/em28xx-core.c +++ b/drivers/media/usb/em28xx/em28xx-core.c @@ -830,14 +830,14 @@ int em28xx_set_alternate(struct em28xx *dev) for (i = 0; i < dev->num_alt; i++) { /* stop when the selected alt setting offers enough bandwidth */ - if (dev->alt_max_pkt_size[i] >= min_pkt_size) { + if (dev->alt_max_pkt_size_isoc[i] >= min_pkt_size) { dev->alt = i; break; /* otherwise make sure that we end up with the maximum bandwidth because the min_pkt_size equation might be wrong... */ - } else if (dev->alt_max_pkt_size[i] > - dev->alt_max_pkt_size[dev->alt]) + } else if (dev->alt_max_pkt_size_isoc[i] > + dev->alt_max_pkt_size_isoc[dev->alt]) dev->alt = i; } @@ -845,7 +845,7 @@ set_alt: if (dev->alt != prev_alt) { em28xx_coredbg("minimum isoc packet size: %u (alt=%d)\n", min_pkt_size, dev->alt); - dev->max_pkt_size = dev->alt_max_pkt_size[dev->alt]; + dev->max_pkt_size = dev->alt_max_pkt_size_isoc[dev->alt]; em28xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n", dev->alt, dev->max_pkt_size); errCode = usb_set_interface(dev->udev, 0, dev->alt); diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c b/drivers/media/usb/em28xx/em28xx-dvb.c index 22ef6dd128e2..24962520df80 100644 --- a/drivers/media/usb/em28xx/em28xx-dvb.c +++ b/drivers/media/usb/em28xx/em28xx-dvb.c @@ -178,12 +178,12 @@ static int em28xx_start_streaming(struct em28xx_dvb *dvb) struct em28xx *dev = dvb->adapter.priv; int max_dvb_packet_size; - usb_set_interface(dev->udev, 0, dev->dvb_alt); + usb_set_interface(dev->udev, 0, dev->dvb_alt_isoc); rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE); if (rc < 0) return rc; - max_dvb_packet_size = dev->dvb_max_pkt_size; + max_dvb_packet_size = dev->dvb_max_pkt_size_isoc; if (max_dvb_packet_size < 0) return max_dvb_packet_size; dprintk(1, "Using %d buffers each with %d x %d bytes\n", diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c index df294f3858ea..d9c15b6da1af 100644 --- a/drivers/media/usb/em28xx/em28xx-video.c +++ b/drivers/media/usb/em28xx/em28xx-video.c @@ -2286,7 +2286,7 @@ static int em28xx_v4l2_close(struct file *filp) free the remaining resources */ if (dev->state & DEV_DISCONNECTED) { em28xx_release_resources(dev); - kfree(dev->alt_max_pkt_size); + kfree(dev->alt_max_pkt_size_isoc); mutex_unlock(&dev->lock); kfree(dev); kfree(fh); diff --git a/drivers/media/usb/em28xx/em28xx.h b/drivers/media/usb/em28xx/em28xx.h index 950a71786a14..6b8d3e6b6920 100644 --- a/drivers/media/usb/em28xx/em28xx.h +++ b/drivers/media/usb/em28xx/em28xx.h @@ -4,6 +4,7 @@ Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com> Ludovico Cavedon <cavedon@sssup.it> Mauro Carvalho Chehab <mchehab@infradead.org> + Copyright (C) 2012 Frank Schäfer <fschaefer.oss@googlemail.com> Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de> @@ -583,12 +584,13 @@ struct em28xx { /* usb transfer */ struct usb_device *udev; /* the usb device */ - int alt; /* alternate */ - int max_pkt_size; /* max packet size of isoc transaction */ - int num_alt; /* Number of alternative settings */ - unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */ - int dvb_alt; /* alternate for DVB */ - unsigned int dvb_max_pkt_size; /* wMaxPacketSize for DVB */ + int alt; /* alternate setting */ + int max_pkt_size; /* max packet size of the selected ep at alt */ + int num_alt; /* number of alternative settings */ + unsigned int *alt_max_pkt_size_isoc; /* array of isoc wMaxPacketSize */ + int dvb_alt_isoc; /* alternate setting for DVB isoc transfers */ + unsigned int dvb_max_pkt_size_isoc; /* isoc max packet size of the + selected DVB ep at dvb_alt */ char urb_buf[URB_MAX_CTRL_SIZE]; /* urb control msg buffer */ /* helper funcs that call usb_control_msg */ |