From 2a9f8b5d25beacd034369fca416b548cbf931561 Mon Sep 17 00:00:00 2001 From: Thierry MERLE Date: Wed, 7 Feb 2007 10:14:38 -0300 Subject: [PATCH] V4L/DVB (5206): Usbvision: set alternate interface modification - usb alternate selection modified to get the biggest endpoint packet size. - fix sysfs get values for brightness/contrast/hue/saturation Signed-off-by: Thierry MERLE Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/usbvision/Kconfig | 2 +- .../media/video/usbvision/usbvision-core.c | 33 +++++++++-- .../media/video/usbvision/usbvision-video.c | 55 +++++++++++++++---- drivers/media/video/usbvision/usbvision.h | 7 ++- 4 files changed, 81 insertions(+), 16 deletions(-) diff --git a/drivers/media/video/usbvision/Kconfig b/drivers/media/video/usbvision/Kconfig index fc24ef05b3f..c43a5d89909 100644 --- a/drivers/media/video/usbvision/Kconfig +++ b/drivers/media/video/usbvision/Kconfig @@ -1,6 +1,6 @@ config VIDEO_USBVISION tristate "USB video devices based on Nogatech NT1003/1004/1005" - depends on I2C && VIDEO_V4L2 + depends on I2C && VIDEO_V4L2 && USB select VIDEO_TUNER select VIDEO_SAA711X if VIDEO_HELPER_CHIPS_AUTO ---help--- diff --git a/drivers/media/video/usbvision/usbvision-core.c b/drivers/media/video/usbvision/usbvision-core.c index d4fcd5736ba..f2154dc072e 100644 --- a/drivers/media/video/usbvision/usbvision-core.c +++ b/drivers/media/video/usbvision/usbvision-core.c @@ -2361,6 +2361,32 @@ int usbvision_setup(struct usb_usbvision *usbvision,int format) return USBVISION_IS_OPERATIONAL(usbvision); } +int usbvision_set_alternate(struct usb_usbvision *dev) +{ + int errCode, prev_alt = dev->ifaceAlt; + int i; + + dev->ifaceAlt=0; + for(i=0;i< dev->num_alt; i++) + if(dev->alt_max_pkt_size[i]>dev->alt_max_pkt_size[dev->ifaceAlt]) + dev->ifaceAlt=i; + + if (dev->ifaceAlt != prev_alt) { + dev->isocPacketSize = dev->alt_max_pkt_size[dev->ifaceAlt]; + PDEBUG(DBG_FUNC,"setting alternate %d with wMaxPacketSize=%u", dev->ifaceAlt,dev->isocPacketSize); + errCode = usb_set_interface(dev->dev, dev->iface, dev->ifaceAlt); + if (errCode < 0) { + err ("cannot change alternate number to %d (error=%i)", + dev->ifaceAlt, errCode); + return errCode; + } + } + + PDEBUG(DBG_ISOC, "ISO Packet Length:%d", dev->isocPacketSize); + + return 0; +} + /* * usbvision_init_isoc() * @@ -2378,15 +2404,13 @@ int usbvision_init_isoc(struct usb_usbvision *usbvision) scratch_reset(usbvision); /* Alternate interface 1 is is the biggest frame size */ - errCode = usb_set_interface(dev, usbvision->iface, usbvision->ifaceAltActive); + errCode = usbvision_set_alternate(usbvision); if (errCode < 0) { usbvision->last_error = errCode; return -EBUSY; } regValue = (16 - usbvision_read_reg(usbvision, USBVISION_ALTER_REG)) & 0x0F; - usbvision->isocPacketSize = (regValue == 0) ? 0 : (regValue * 64) - 1; - PDEBUG(DBG_ISOC, "ISO Packet Length:%d", usbvision->isocPacketSize); usbvision->usb_bandwidth = regValue >> 1; PDEBUG(DBG_ISOC, "USB Bandwidth Usage: %dMbit/Sec", usbvision->usb_bandwidth); @@ -2472,8 +2496,9 @@ void usbvision_stop_isoc(struct usb_usbvision *usbvision) if (!usbvision->remove_pending) { /* Set packet size to 0 */ + usbvision->ifaceAlt=0; errCode = usb_set_interface(usbvision->dev, usbvision->iface, - usbvision->ifaceAltInactive); + usbvision->ifaceAlt); if (errCode < 0) { err("%s: usb_set_interface() failed: error %d", __FUNCTION__, errCode); usbvision->last_error = errCode; diff --git a/drivers/media/video/usbvision/usbvision-video.c b/drivers/media/video/usbvision/usbvision-video.c index cfbfda47ec4..ae5f42562c0 100644 --- a/drivers/media/video/usbvision/usbvision-video.c +++ b/drivers/media/video/usbvision/usbvision-video.c @@ -230,7 +230,7 @@ static ssize_t show_hue(struct class_device *cd, char *buf) ctrl.value = 0; if(usbvision->user) call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); - return sprintf(buf, "%d\n", ctrl.value >> 8); + return sprintf(buf, "%d\n", ctrl.value); } static CLASS_DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL); @@ -243,7 +243,7 @@ static ssize_t show_contrast(struct class_device *cd, char *buf) ctrl.value = 0; if(usbvision->user) call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); - return sprintf(buf, "%d\n", ctrl.value >> 8); + return sprintf(buf, "%d\n", ctrl.value); } static CLASS_DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL); @@ -256,7 +256,7 @@ static ssize_t show_brightness(struct class_device *cd, char *buf) ctrl.value = 0; if(usbvision->user) call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); - return sprintf(buf, "%d\n", ctrl.value >> 8); + return sprintf(buf, "%d\n", ctrl.value); } static CLASS_DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL); @@ -269,7 +269,7 @@ static ssize_t show_saturation(struct class_device *cd, char *buf) ctrl.value = 0; if(usbvision->user) call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); - return sprintf(buf, "%d\n", ctrl.value >> 8); + return sprintf(buf, "%d\n", ctrl.value); } static CLASS_DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL); @@ -776,8 +776,8 @@ static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file, case VIDIOC_G_CTRL: { struct v4l2_control *ctrl = arg; - PDEBUG(DBG_IOCTL,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value); call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl); + PDEBUG(DBG_IOCTL,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value); return 0; } case VIDIOC_S_CTRL: @@ -1243,6 +1243,13 @@ static int usbvision_radio_open(struct inode *inode, struct file *file) } } + /* Alternate interface 1 is is the biggest frame size */ + errCode = usbvision_set_alternate(usbvision); + if (errCode < 0) { + usbvision->last_error = errCode; + return -EBUSY; + } + // If so far no errors then we shall start the radio usbvision->radio = 1; call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type); @@ -1274,6 +1281,11 @@ static int usbvision_radio_close(struct inode *inode, struct file *file) down(&usbvision->lock); + /* Set packet size to 0 */ + usbvision->ifaceAlt=0; + errCode = usb_set_interface(usbvision->dev, usbvision->iface, + usbvision->ifaceAlt); + usbvision_audio_off(usbvision); usbvision->radio=0; usbvision->user--; @@ -1765,15 +1777,17 @@ static void usbvision_configure_video(struct usb_usbvision *usbvision) */ static int __devinit usbvision_probe(struct usb_interface *intf, const struct usb_device_id *devid) { - struct usb_device *dev = interface_to_usbdev(intf); + struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf)); + struct usb_interface *uif; __u8 ifnum = intf->altsetting->desc.bInterfaceNumber; const struct usb_host_interface *interface; struct usb_usbvision *usbvision = NULL; const struct usb_endpoint_descriptor *endpoint; - int model; + int model,i; PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u", dev->descriptor.idVendor, dev->descriptor.idProduct, ifnum); + /* Is it an USBVISION video dev? */ model = 0; for(model = 0; usbvision_device_data[model].idVendor; model++) { @@ -1800,7 +1814,7 @@ static int __devinit usbvision_probe(struct usb_interface *intf, const struct us endpoint = &interface->endpoint[1].desc; if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_ISOC) { err("%s: interface %d. has non-ISO endpoint!", __FUNCTION__, ifnum); - err("%s: Endpoint attribures %d", __FUNCTION__, endpoint->bmAttributes); + err("%s: Endpoint attributes %d", __FUNCTION__, endpoint->bmAttributes); return -ENODEV; } if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) { @@ -1827,6 +1841,28 @@ static int __devinit usbvision_probe(struct usb_interface *intf, const struct us down(&usbvision->lock); + /* compute alternate max packet sizes */ + uif = dev->actconfig->interface[0]; + + usbvision->num_alt=uif->num_altsetting; + PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt); + usbvision->alt_max_pkt_size = kmalloc(32* + usbvision->num_alt,GFP_KERNEL); + if (usbvision->alt_max_pkt_size == NULL) { + err("usbvision: out of memory!\n"); + return -ENOMEM; + } + + for (i = 0; i < usbvision->num_alt ; i++) { + u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc. + wMaxPacketSize); + usbvision->alt_max_pkt_size[i] = + (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); + PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i, + usbvision->alt_max_pkt_size[i]); + } + + usbvision->nr = usbvision_nr++; usbvision->have_tuner = usbvision_device_data[model].Tuner; @@ -1839,8 +1875,7 @@ static int __devinit usbvision_probe(struct usb_interface *intf, const struct us usbvision->DevModel = model; usbvision->remove_pending = 0; usbvision->iface = ifnum; - usbvision->ifaceAltInactive = 0; - usbvision->ifaceAltActive = 1; + usbvision->ifaceAlt = 0; usbvision->video_endp = endpoint->bEndpointAddress; usbvision->isocPacketSize = 0; usbvision->usb_bandwidth = 0; diff --git a/drivers/media/video/usbvision/usbvision.h b/drivers/media/video/usbvision/usbvision.h index 0e2b5569986..ad6afd3e42a 100644 --- a/drivers/media/video/usbvision/usbvision.h +++ b/drivers/media/video/usbvision/usbvision.h @@ -33,6 +33,7 @@ #include #include +#include #include #include #include @@ -396,8 +397,11 @@ struct usb_usbvision { /* Device structure */ struct usb_device *dev; + /* usb transfer */ + int num_alt; /* Number of alternative settings */ + unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */ unsigned char iface; /* Video interface number */ - unsigned char ifaceAltActive, ifaceAltInactive; /* Alt settings */ + unsigned char ifaceAlt; /* Alt settings */ unsigned char Vin_Reg2_Preset; struct semaphore lock; struct timer_list powerOffTimer; @@ -502,6 +506,7 @@ int usbvision_setup(struct usb_usbvision *usbvision,int format); int usbvision_init_isoc(struct usb_usbvision *usbvision); int usbvision_restart_isoc(struct usb_usbvision *usbvision); void usbvision_stop_isoc(struct usb_usbvision *usbvision); +int usbvision_set_alternate(struct usb_usbvision *dev); int usbvision_set_audio(struct usb_usbvision *usbvision, int AudioChannel); int usbvision_audio_off(struct usb_usbvision *usbvision); -- 2.41.1