diff options
Diffstat (limited to 'drivers/media/usb/au0828/au0828-video.c')
| -rw-r--r-- | drivers/media/usb/au0828/au0828-video.c | 90 |
1 files changed, 78 insertions, 12 deletions
diff --git a/drivers/media/usb/au0828/au0828-video.c b/drivers/media/usb/au0828/au0828-video.c index 98f7ea1d6d63..5f337b118bff 100644 --- a/drivers/media/usb/au0828/au0828-video.c +++ b/drivers/media/usb/au0828/au0828-video.c @@ -28,16 +28,16 @@ * */ +#include "au0828.h" + #include <linux/module.h> #include <linux/slab.h> #include <linux/init.h> #include <linux/device.h> -#include <linux/suspend.h> #include <media/v4l2-common.h> #include <media/v4l2-ioctl.h> #include <media/v4l2-event.h> #include <media/tuner.h> -#include "au0828.h" #include "au0828-reg.h" static DEFINE_MUTEX(au0828_sysfs_lock); @@ -53,7 +53,7 @@ MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); #define au0828_isocdbg(fmt, arg...) \ do {\ if (isoc_debug) { \ - printk(KERN_INFO "au0828 %s :"fmt, \ + pr_info("au0828 %s :"fmt, \ __func__ , ##arg); \ } \ } while (0) @@ -106,12 +106,12 @@ static inline void print_err_status(struct au0828_dev *dev, static int check_dev(struct au0828_dev *dev) { if (dev->dev_state & DEV_DISCONNECTED) { - printk(KERN_INFO "v4l2 ioctl: device not present\n"); + pr_info("v4l2 ioctl: device not present\n"); return -ENODEV; } if (dev->dev_state & DEV_MISCONFIGURED) { - printk(KERN_INFO "v4l2 ioctl: device is misconfigured; " + pr_info("v4l2 ioctl: device is misconfigured; " "close and open it again\n"); return -EIO; } @@ -159,6 +159,7 @@ static void au0828_irq_callback(struct urb *urb) au0828_isocdbg("urb resubmit failed (error=%i)\n", urb->status); } + dev->stream_state = STREAM_ON; } /* @@ -198,6 +199,8 @@ static void au0828_uninit_isoc(struct au0828_dev *dev) dev->isoc_ctl.urb = NULL; dev->isoc_ctl.transfer_buffer = NULL; dev->isoc_ctl.num_bufs = 0; + + dev->stream_state = STREAM_OFF; } /* @@ -717,7 +720,7 @@ buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { rc = videobuf_iolock(vq, &buf->vb, NULL); if (rc < 0) { - printk(KERN_INFO "videobuf_iolock failed\n"); + pr_info("videobuf_iolock failed\n"); goto fail; } } @@ -730,7 +733,7 @@ buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, AU0828_MAX_ISO_BUFS, dev->max_pkt_size, au0828_isoc_copy); if (rc < 0) { - printk(KERN_INFO "au0828_init_isoc failed\n"); + pr_info("au0828_init_isoc failed\n"); goto fail; } } @@ -801,7 +804,7 @@ static int au0828_analog_stream_enable(struct au0828_dev *d) /* set au0828 interface0 to AS5 here again */ ret = usb_set_interface(d->usbdev, 0, 5); if (ret < 0) { - printk(KERN_INFO "Au0828 can't set alt setting to 5!\n"); + pr_info("Au0828 can't set alt setting to 5!\n"); return -EBUSY; } } @@ -1090,7 +1093,7 @@ static int au0828_v4l2_close(struct file *filp) USB bandwidth */ ret = usb_set_interface(dev->usbdev, 0, 0); if (ret < 0) - printk(KERN_INFO "Au0828 can't set alternate to 0!\n"); + pr_info("Au0828 can't set alternate to 0!\n"); } mutex_unlock(&dev->lock); @@ -1344,7 +1347,7 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, return rc; if (videobuf_queue_is_busy(&fh->vb_vidq)) { - printk(KERN_INFO "%s queue busy\n", __func__); + pr_info("%s queue busy\n", __func__); rc = -EBUSY; goto out; } @@ -1868,6 +1871,69 @@ static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) return rc; } +void au0828_v4l2_suspend(struct au0828_dev *dev) +{ + struct urb *urb; + int i; + + pr_info("stopping V4L2\n"); + + if (dev->stream_state == STREAM_ON) { + pr_info("stopping V4L2 active URBs\n"); + au0828_analog_stream_disable(dev); + /* stop urbs */ + for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { + urb = dev->isoc_ctl.urb[i]; + if (urb) { + if (!irqs_disabled()) + usb_kill_urb(urb); + else + usb_unlink_urb(urb); + } + } + } + + if (dev->vid_timeout_running) + del_timer_sync(&dev->vid_timeout); + if (dev->vbi_timeout_running) + del_timer_sync(&dev->vbi_timeout); +} + +void au0828_v4l2_resume(struct au0828_dev *dev) +{ + int i, rc; + + pr_info("restarting V4L2\n"); + + if (dev->stream_state == STREAM_ON) { + au0828_stream_interrupt(dev); + au0828_init_tuner(dev); + } + + if (dev->vid_timeout_running) + mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); + if (dev->vbi_timeout_running) + mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); + + /* If we were doing ac97 instead of i2s, it would go here...*/ + au0828_i2s_init(dev); + + au0828_analog_stream_enable(dev); + + if (!(dev->stream_state == STREAM_ON)) { + au0828_analog_stream_reset(dev); + /* submit urbs */ + for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { + rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); + if (rc) { + au0828_isocdbg("submit of urb %i failed (error=%i)\n", + i, rc); + au0828_uninit_isoc(dev); + } + } + } +} + static struct v4l2_file_operations au0828_v4l_fops = { .owner = THIS_MODULE, .open = au0828_v4l2_open, @@ -1939,7 +2005,7 @@ int au0828_analog_register(struct au0828_dev *dev, retval = usb_set_interface(dev->usbdev, interface->cur_altsetting->desc.bInterfaceNumber, 5); if (retval != 0) { - printk(KERN_INFO "Failure setting usb interface0 to as5\n"); + pr_info("Failure setting usb interface0 to as5\n"); return retval; } @@ -1963,7 +2029,7 @@ int au0828_analog_register(struct au0828_dev *dev, } } if (!(dev->isoc_in_endpointaddr)) { - printk(KERN_INFO "Could not locate isoc endpoint\n"); + pr_info("Could not locate isoc endpoint\n"); kfree(dev); return -ENODEV; } |