Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Alan Cox | 1540 | 47.37% | 1 | 1.64% |
Hans Verkuil | 925 | 28.45% | 21 | 34.43% |
Andrew Morton | 225 | 6.92% | 2 | 3.28% |
Michael Hunold | 182 | 5.60% | 7 | 11.48% |
Oliver Endriss | 180 | 5.54% | 1 | 1.64% |
Joe Perches | 69 | 2.12% | 2 | 3.28% |
Laurent Pinchart | 26 | 0.80% | 4 | 6.56% |
Mauro Carvalho Chehab | 22 | 0.68% | 4 | 6.56% |
Adrian Bunk | 21 | 0.65% | 2 | 3.28% |
Kees Cook | 17 | 0.52% | 2 | 3.28% |
Eric Sesterhenn / Snakebyte | 6 | 0.18% | 1 | 1.64% |
Benjamin Collins | 5 | 0.15% | 1 | 1.64% |
Brandon Philips | 5 | 0.15% | 1 | 1.64% |
Al Viro | 5 | 0.15% | 2 | 3.28% |
Linus Torvalds | 5 | 0.15% | 1 | 1.64% |
Paul Gortmaker | 3 | 0.09% | 1 | 1.64% |
Ingo Molnar | 3 | 0.09% | 1 | 1.64% |
Herbert Pötzl | 3 | 0.09% | 1 | 1.64% |
Gerd Knorr | 2 | 0.06% | 1 | 1.64% |
Panagiotis Issaris | 2 | 0.06% | 1 | 1.64% |
Cyril Roelandt | 2 | 0.06% | 1 | 1.64% |
Thomas Gleixner | 1 | 0.03% | 1 | 1.64% |
Arjan van de Ven | 1 | 0.03% | 1 | 1.64% |
Marko Schluessler | 1 | 0.03% | 1 | 1.64% |
Total | 3251 | 61 |
// SPDX-License-Identifier: GPL-2.0-only #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <media/drv-intf/saa7146_vv.h> #include <linux/module.h> /****************************************************************************/ /* resource management functions, shamelessly stolen from saa7134 driver */ int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit) { struct saa7146_dev *dev = fh->dev; struct saa7146_vv *vv = dev->vv_data; if (fh->resources & bit) { DEB_D("already allocated! want: 0x%02x, cur:0x%02x\n", bit, vv->resources); /* have it already allocated */ return 1; } /* is it free? */ if (vv->resources & bit) { DEB_D("locked! vv->resources:0x%02x, we want:0x%02x\n", vv->resources, bit); /* no, someone else uses it */ return 0; } /* it's free, grab it */ fh->resources |= bit; vv->resources |= bit; DEB_D("res: get 0x%02x, cur:0x%02x\n", bit, vv->resources); return 1; } void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits) { struct saa7146_dev *dev = fh->dev; struct saa7146_vv *vv = dev->vv_data; BUG_ON((fh->resources & bits) != bits); fh->resources &= ~bits; vv->resources &= ~bits; DEB_D("res: put 0x%02x, cur:0x%02x\n", bits, vv->resources); } /********************************************************************************/ /* common dma functions */ void saa7146_dma_free(struct saa7146_dev *dev,struct videobuf_queue *q, struct saa7146_buf *buf) { struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb); DEB_EE("dev:%p, buf:%p\n", dev, buf); BUG_ON(in_interrupt()); videobuf_waiton(q, &buf->vb, 0, 0); videobuf_dma_unmap(q->dev, dma); videobuf_dma_free(dma); buf->vb.state = VIDEOBUF_NEEDS_INIT; } /********************************************************************************/ /* common buffer functions */ int saa7146_buffer_queue(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, struct saa7146_buf *buf) { assert_spin_locked(&dev->slock); DEB_EE("dev:%p, dmaq:%p, buf:%p\n", dev, q, buf); BUG_ON(!q); if (NULL == q->curr) { q->curr = buf; DEB_D("immediately activating buffer %p\n", buf); buf->activate(dev,buf,NULL); } else { list_add_tail(&buf->vb.queue,&q->queue); buf->vb.state = VIDEOBUF_QUEUED; DEB_D("adding buffer %p to queue. (active buffer present)\n", buf); } return 0; } void saa7146_buffer_finish(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, int state) { assert_spin_locked(&dev->slock); DEB_EE("dev:%p, dmaq:%p, state:%d\n", dev, q, state); DEB_EE("q->curr:%p\n", q->curr); BUG_ON(!q->curr); /* finish current buffer */ if (NULL == q->curr) { DEB_D("aiii. no current buffer\n"); return; } q->curr->vb.state = state; q->curr->vb.ts = ktime_get_ns(); wake_up(&q->curr->vb.done); q->curr = NULL; } void saa7146_buffer_next(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, int vbi) { struct saa7146_buf *buf,*next = NULL; BUG_ON(!q); DEB_INT("dev:%p, dmaq:%p, vbi:%d\n", dev, q, vbi); assert_spin_locked(&dev->slock); if (!list_empty(&q->queue)) { /* activate next one from queue */ buf = list_entry(q->queue.next,struct saa7146_buf,vb.queue); list_del(&buf->vb.queue); if (!list_empty(&q->queue)) next = list_entry(q->queue.next,struct saa7146_buf, vb.queue); q->curr = buf; DEB_INT("next buffer: buf:%p, prev:%p, next:%p\n", buf, q->queue.prev, q->queue.next); buf->activate(dev,buf,next); } else { DEB_INT("no next buffer. stopping.\n"); if( 0 != vbi ) { /* turn off video-dma3 */ saa7146_write(dev,MC1, MASK_20); } else { /* nothing to do -- just prevent next video-dma1 transfer by lowering the protection address */ // fixme: fix this for vflip != 0 saa7146_write(dev, PROT_ADDR1, 0); saa7146_write(dev, MC2, (MASK_02|MASK_18)); /* write the address of the rps-program */ saa7146_write(dev, RPS_ADDR0, dev->d_rps0.dma_handle); /* turn on rps */ saa7146_write(dev, MC1, (MASK_12 | MASK_28)); /* printk("vdma%d.base_even: 0x%08x\n", 1,saa7146_read(dev,BASE_EVEN1)); printk("vdma%d.base_odd: 0x%08x\n", 1,saa7146_read(dev,BASE_ODD1)); printk("vdma%d.prot_addr: 0x%08x\n", 1,saa7146_read(dev,PROT_ADDR1)); printk("vdma%d.base_page: 0x%08x\n", 1,saa7146_read(dev,BASE_PAGE1)); printk("vdma%d.pitch: 0x%08x\n", 1,saa7146_read(dev,PITCH1)); printk("vdma%d.num_line_byte: 0x%08x\n", 1,saa7146_read(dev,NUM_LINE_BYTE1)); */ } del_timer(&q->timeout); } } void saa7146_buffer_timeout(struct timer_list *t) { struct saa7146_dmaqueue *q = from_timer(q, t, timeout); struct saa7146_dev *dev = q->dev; unsigned long flags; DEB_EE("dev:%p, dmaq:%p\n", dev, q); spin_lock_irqsave(&dev->slock,flags); if (q->curr) { DEB_D("timeout on %p\n", q->curr); saa7146_buffer_finish(dev,q,VIDEOBUF_ERROR); } /* we don't restart the transfer here like other drivers do. when a streaming capture is disabled, the timeout function will be called for the current buffer. if we activate the next buffer now, we mess up our capture logic. if a timeout occurs on another buffer, then something is seriously broken before, so no need to buffer the next capture IMHO... */ /* saa7146_buffer_next(dev,q); */ spin_unlock_irqrestore(&dev->slock,flags); } /********************************************************************************/ /* file operations */ static int fops_open(struct file *file) { struct video_device *vdev = video_devdata(file); struct saa7146_dev *dev = video_drvdata(file); struct saa7146_fh *fh = NULL; int result = 0; DEB_EE("file:%p, dev:%s\n", file, video_device_node_name(vdev)); if (mutex_lock_interruptible(vdev->lock)) return -ERESTARTSYS; DEB_D("using: %p\n", dev); /* check if an extension is registered */ if( NULL == dev->ext ) { DEB_S("no extension registered for this device\n"); result = -ENODEV; goto out; } /* allocate per open data */ fh = kzalloc(sizeof(*fh),GFP_KERNEL); if (NULL == fh) { DEB_S("cannot allocate memory for per open data\n"); result = -ENOMEM; goto out; } v4l2_fh_init(&fh->fh, vdev); file->private_data = &fh->fh; fh->dev = dev; if (vdev->vfl_type == VFL_TYPE_VBI) { DEB_S("initializing vbi...\n"); if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) result = saa7146_vbi_uops.open(dev,file); if (dev->ext_vv_data->vbi_fops.open) dev->ext_vv_data->vbi_fops.open(file); } else { DEB_S("initializing video...\n"); result = saa7146_video_uops.open(dev,file); } if (0 != result) { goto out; } if( 0 == try_module_get(dev->ext->module)) { result = -EINVAL; goto out; } result = 0; v4l2_fh_add(&fh->fh); out: if (fh && result != 0) { kfree(fh); file->private_data = NULL; } mutex_unlock(vdev->lock); return result; } static int fops_release(struct file *file) { struct video_device *vdev = video_devdata(file); struct saa7146_fh *fh = file->private_data; struct saa7146_dev *dev = fh->dev; DEB_EE("file:%p\n", file); mutex_lock(vdev->lock); if (vdev->vfl_type == VFL_TYPE_VBI) { if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) saa7146_vbi_uops.release(dev,file); if (dev->ext_vv_data->vbi_fops.release) dev->ext_vv_data->vbi_fops.release(file); } else { saa7146_video_uops.release(dev,file); } v4l2_fh_del(&fh->fh); v4l2_fh_exit(&fh->fh); module_put(dev->ext->module); file->private_data = NULL; kfree(fh); mutex_unlock(vdev->lock); return 0; } static int fops_mmap(struct file *file, struct vm_area_struct * vma) { struct video_device *vdev = video_devdata(file); struct saa7146_fh *fh = file->private_data; struct videobuf_queue *q; int res; switch (vdev->vfl_type) { case VFL_TYPE_GRABBER: { DEB_EE("V4L2_BUF_TYPE_VIDEO_CAPTURE: file:%p, vma:%p\n", file, vma); q = &fh->video_q; break; } case VFL_TYPE_VBI: { DEB_EE("V4L2_BUF_TYPE_VBI_CAPTURE: file:%p, vma:%p\n", file, vma); if (fh->dev->ext_vv_data->capabilities & V4L2_CAP_SLICED_VBI_OUTPUT) return -ENODEV; q = &fh->vbi_q; break; } default: BUG(); } if (mutex_lock_interruptible(vdev->lock)) return -ERESTARTSYS; res = videobuf_mmap_mapper(q, vma); mutex_unlock(vdev->lock); return res; } static __poll_t __fops_poll(struct file *file, struct poll_table_struct *wait) { struct video_device *vdev = video_devdata(file); struct saa7146_fh *fh = file->private_data; struct videobuf_buffer *buf = NULL; struct videobuf_queue *q; __poll_t res = v4l2_ctrl_poll(file, wait); DEB_EE("file:%p, poll:%p\n", file, wait); if (vdev->vfl_type == VFL_TYPE_VBI) { if (fh->dev->ext_vv_data->capabilities & V4L2_CAP_SLICED_VBI_OUTPUT) return res | EPOLLOUT | EPOLLWRNORM; if( 0 == fh->vbi_q.streaming ) return res | videobuf_poll_stream(file, &fh->vbi_q, wait); q = &fh->vbi_q; } else { DEB_D("using video queue\n"); q = &fh->video_q; } if (!list_empty(&q->stream)) buf = list_entry(q->stream.next, struct videobuf_buffer, stream); if (!buf) { DEB_D("buf == NULL!\n"); return res | EPOLLERR; } poll_wait(file, &buf->done, wait); if (buf->state == VIDEOBUF_DONE || buf->state == VIDEOBUF_ERROR) { DEB_D("poll succeeded!\n"); return res | EPOLLIN | EPOLLRDNORM; } DEB_D("nothing to poll for, buf->state:%d\n", buf->state); return res; } static __poll_t fops_poll(struct file *file, struct poll_table_struct *wait) { struct video_device *vdev = video_devdata(file); __poll_t res; mutex_lock(vdev->lock); res = __fops_poll(file, wait); mutex_unlock(vdev->lock); return res; } static ssize_t fops_read(struct file *file, char __user *data, size_t count, loff_t *ppos) { struct video_device *vdev = video_devdata(file); struct saa7146_fh *fh = file->private_data; int ret; switch (vdev->vfl_type) { case VFL_TYPE_GRABBER: /* DEB_EE("V4L2_BUF_TYPE_VIDEO_CAPTURE: file:%p, data:%p, count:%lun", file, data, (unsigned long)count); */ return saa7146_video_uops.read(file,data,count,ppos); case VFL_TYPE_VBI: /* DEB_EE("V4L2_BUF_TYPE_VBI_CAPTURE: file:%p, data:%p, count:%lu\n", file, data, (unsigned long)count); */ if (fh->dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) { if (mutex_lock_interruptible(vdev->lock)) return -ERESTARTSYS; ret = saa7146_vbi_uops.read(file, data, count, ppos); mutex_unlock(vdev->lock); return ret; } return -EINVAL; default: BUG(); } } static ssize_t fops_write(struct file *file, const char __user *data, size_t count, loff_t *ppos) { struct video_device *vdev = video_devdata(file); struct saa7146_fh *fh = file->private_data; int ret; switch (vdev->vfl_type) { case VFL_TYPE_GRABBER: return -EINVAL; case VFL_TYPE_VBI: if (fh->dev->ext_vv_data->vbi_fops.write) { if (mutex_lock_interruptible(vdev->lock)) return -ERESTARTSYS; ret = fh->dev->ext_vv_data->vbi_fops.write(file, data, count, ppos); mutex_unlock(vdev->lock); return ret; } return -EINVAL; default: BUG(); } } static const struct v4l2_file_operations video_fops = { .owner = THIS_MODULE, .open = fops_open, .release = fops_release, .read = fops_read, .write = fops_write, .poll = fops_poll, .mmap = fops_mmap, .unlocked_ioctl = video_ioctl2, }; static void vv_callback(struct saa7146_dev *dev, unsigned long status) { u32 isr = status; DEB_INT("dev:%p, isr:0x%08x\n", dev, (u32)status); if (0 != (isr & (MASK_27))) { DEB_INT("irq: RPS0 (0x%08x)\n", isr); saa7146_video_uops.irq_done(dev,isr); } if (0 != (isr & (MASK_28))) { u32 mc2 = saa7146_read(dev, MC2); if( 0 != (mc2 & MASK_15)) { DEB_INT("irq: RPS1 vbi workaround (0x%08x)\n", isr); wake_up(&dev->vv_data->vbi_wq); saa7146_write(dev,MC2, MASK_31); return; } DEB_INT("irq: RPS1 (0x%08x)\n", isr); saa7146_vbi_uops.irq_done(dev,isr); } } static const struct v4l2_ctrl_ops saa7146_ctrl_ops = { .s_ctrl = saa7146_s_ctrl, }; int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv) { struct v4l2_ctrl_handler *hdl = &dev->ctrl_handler; struct v4l2_pix_format *fmt; struct v4l2_vbi_format *vbi; struct saa7146_vv *vv; int err; err = v4l2_device_register(&dev->pci->dev, &dev->v4l2_dev); if (err) return err; v4l2_ctrl_handler_init(hdl, 6); v4l2_ctrl_new_std(hdl, &saa7146_ctrl_ops, V4L2_CID_BRIGHTNESS, 0, 255, 1, 128); v4l2_ctrl_new_std(hdl, &saa7146_ctrl_ops, V4L2_CID_CONTRAST, 0, 127, 1, 64); v4l2_ctrl_new_std(hdl, &saa7146_ctrl_ops, V4L2_CID_SATURATION, 0, 127, 1, 64); v4l2_ctrl_new_std(hdl, &saa7146_ctrl_ops, V4L2_CID_VFLIP, 0, 1, 1, 0); v4l2_ctrl_new_std(hdl, &saa7146_ctrl_ops, V4L2_CID_HFLIP, 0, 1, 1, 0); if (hdl->error) { err = hdl->error; v4l2_ctrl_handler_free(hdl); return err; } dev->v4l2_dev.ctrl_handler = hdl; vv = kzalloc(sizeof(struct saa7146_vv), GFP_KERNEL); if (vv == NULL) { ERR("out of memory. aborting.\n"); v4l2_ctrl_handler_free(hdl); return -ENOMEM; } ext_vv->vid_ops = saa7146_video_ioctl_ops; ext_vv->vbi_ops = saa7146_vbi_ioctl_ops; ext_vv->core_ops = &saa7146_video_ioctl_ops; DEB_EE("dev:%p\n", dev); /* set default values for video parts of the saa7146 */ saa7146_write(dev, BCS_CTRL, 0x80400040); /* enable video-port pins */ saa7146_write(dev, MC1, (MASK_10 | MASK_26)); /* save per-device extension data (one extension can handle different devices that might need different configuration data) */ dev->ext_vv_data = ext_vv; vv->d_clipping.cpu_addr = pci_zalloc_consistent(dev->pci, SAA7146_CLIPPING_MEM, &vv->d_clipping.dma_handle); if( NULL == vv->d_clipping.cpu_addr ) { ERR("out of memory. aborting.\n"); kfree(vv); v4l2_ctrl_handler_free(hdl); return -1; } saa7146_video_uops.init(dev,vv); if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) saa7146_vbi_uops.init(dev,vv); vv->ov_fb.fmt.width = vv->standard->h_max_out; vv->ov_fb.fmt.height = vv->standard->v_max_out; vv->ov_fb.fmt.pixelformat = V4L2_PIX_FMT_RGB565; vv->ov_fb.fmt.bytesperline = 2 * vv->ov_fb.fmt.width; vv->ov_fb.fmt.sizeimage = vv->ov_fb.fmt.bytesperline * vv->ov_fb.fmt.height; vv->ov_fb.fmt.colorspace = V4L2_COLORSPACE_SRGB; fmt = &vv->video_fmt; fmt->width = 384; fmt->height = 288; fmt->pixelformat = V4L2_PIX_FMT_BGR24; fmt->field = V4L2_FIELD_ANY; fmt->colorspace = V4L2_COLORSPACE_SMPTE170M; fmt->bytesperline = 3 * fmt->width; fmt->sizeimage = fmt->bytesperline * fmt->height; vbi = &vv->vbi_fmt; vbi->sampling_rate = 27000000; vbi->offset = 248; /* todo */ vbi->samples_per_line = 720 * 2; vbi->sample_format = V4L2_PIX_FMT_GREY; /* fixme: this only works for PAL */ vbi->start[0] = 5; vbi->count[0] = 16; vbi->start[1] = 312; vbi->count[1] = 16; timer_setup(&vv->vbi_read_timeout, NULL, 0); vv->ov_fb.capability = V4L2_FBUF_CAP_LIST_CLIPPING; vv->ov_fb.flags = V4L2_FBUF_FLAG_PRIMARY; dev->vv_data = vv; dev->vv_callback = &vv_callback; return 0; } EXPORT_SYMBOL_GPL(saa7146_vv_init); int saa7146_vv_release(struct saa7146_dev* dev) { struct saa7146_vv *vv = dev->vv_data; DEB_EE("dev:%p\n", dev); v4l2_device_unregister(&dev->v4l2_dev); pci_free_consistent(dev->pci, SAA7146_CLIPPING_MEM, vv->d_clipping.cpu_addr, vv->d_clipping.dma_handle); v4l2_ctrl_handler_free(&dev->ctrl_handler); kfree(vv); dev->vv_data = NULL; dev->vv_callback = NULL; return 0; } EXPORT_SYMBOL_GPL(saa7146_vv_release); int saa7146_register_device(struct video_device *vfd, struct saa7146_dev *dev, char *name, int type) { int err; int i; DEB_EE("dev:%p, name:'%s', type:%d\n", dev, name, type); vfd->fops = &video_fops; if (type == VFL_TYPE_GRABBER) vfd->ioctl_ops = &dev->ext_vv_data->vid_ops; else vfd->ioctl_ops = &dev->ext_vv_data->vbi_ops; vfd->release = video_device_release_empty; vfd->lock = &dev->v4l2_lock; vfd->v4l2_dev = &dev->v4l2_dev; vfd->tvnorms = 0; for (i = 0; i < dev->ext_vv_data->num_stds; i++) vfd->tvnorms |= dev->ext_vv_data->stds[i].id; strscpy(vfd->name, name, sizeof(vfd->name)); video_set_drvdata(vfd, dev); err = video_register_device(vfd, type, -1); if (err < 0) { ERR("cannot register v4l2 device. skipping.\n"); return err; } pr_info("%s: registered device %s [v4l2]\n", dev->name, video_device_node_name(vfd)); return 0; } EXPORT_SYMBOL_GPL(saa7146_register_device); int saa7146_unregister_device(struct video_device *vfd, struct saa7146_dev *dev) { DEB_EE("dev:%p\n", dev); video_unregister_device(vfd); return 0; } EXPORT_SYMBOL_GPL(saa7146_unregister_device); static int __init saa7146_vv_init_module(void) { return 0; } static void __exit saa7146_vv_cleanup_module(void) { } module_init(saa7146_vv_init_module); module_exit(saa7146_vv_cleanup_module); MODULE_AUTHOR("Michael Hunold <michael@mihu.de>"); MODULE_DESCRIPTION("video4linux driver for saa7146-based hardware"); MODULE_LICENSE("GPL");
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