Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Alan Cox | 985 | 44.63% | 1 | 1.82% |
Hans Verkuil | 888 | 40.24% | 28 | 50.91% |
Andrew Morton | 115 | 5.21% | 2 | 3.64% |
Michael Hunold | 74 | 3.35% | 6 | 10.91% |
Oliver Endriss | 51 | 2.31% | 1 | 1.82% |
Joe Perches | 47 | 2.13% | 1 | 1.82% |
Kees Cook | 17 | 0.77% | 2 | 3.64% |
Laurent Pinchart | 10 | 0.45% | 2 | 3.64% |
Benjamin Collins | 5 | 0.23% | 1 | 1.82% |
Herbert Pötzl | 3 | 0.14% | 1 | 1.82% |
Paul Gortmaker | 2 | 0.09% | 1 | 1.82% |
Eric Sesterhenn / Snakebyte | 2 | 0.09% | 1 | 1.82% |
Benjamin Gaignard | 1 | 0.05% | 1 | 1.82% |
Panagiotis Issaris | 1 | 0.05% | 1 | 1.82% |
Thomas Gleixner | 1 | 0.05% | 1 | 1.82% |
Adrian Bunk | 1 | 0.05% | 1 | 1.82% |
Mauro Carvalho Chehab | 1 | 0.05% | 1 | 1.82% |
Arjan van de Ven | 1 | 0.05% | 1 | 1.82% |
Al Viro | 1 | 0.05% | 1 | 1.82% |
Ingo Molnar | 1 | 0.05% | 1 | 1.82% |
Total | 2207 | 55 |
// 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_dev *dev, unsigned int bit) { struct saa7146_vv *vv = dev->vv_data; if (vv->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 */ vv->resources |= bit; DEB_D("res: get 0x%02x, cur:0x%02x\n", bit, vv->resources); return 1; } void saa7146_res_free(struct saa7146_dev *dev, unsigned int bits) { struct saa7146_vv *vv = dev->vv_data; WARN_ON((vv->resources & bits) != bits); vv->resources &= ~bits; DEB_D("res: put 0x%02x, cur:0x%02x\n", bits, vv->resources); } /********************************************************************************/ /* 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); if (WARN_ON(!q)) return -EIO; 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->list, &q->queue); 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) { struct saa7146_vv *vv = dev->vv_data; struct saa7146_buf *buf = q->curr; 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); /* finish current buffer */ if (!buf) { DEB_D("aiii. no current buffer\n"); return; } q->curr = NULL; buf->vb.vb2_buf.timestamp = ktime_get_ns(); if (vv->video_fmt.field == V4L2_FIELD_ALTERNATE) buf->vb.field = vv->last_field; else if (vv->video_fmt.field == V4L2_FIELD_ANY) buf->vb.field = (vv->video_fmt.height > vv->standard->v_max_out / 2) ? V4L2_FIELD_INTERLACED : V4L2_FIELD_BOTTOM; else buf->vb.field = vv->video_fmt.field; buf->vb.sequence = vv->seqnr++; vb2_buffer_done(&buf->vb.vb2_buf, state); } void saa7146_buffer_next(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, int vbi) { struct saa7146_buf *buf,*next = NULL; if (WARN_ON(!q)) return; 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, list); list_del(&buf->list); if (!list_empty(&q->queue)) next = list_entry(q->queue.next, struct saa7146_buf, list); 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, VB2_BUF_STATE_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, 0); spin_unlock_irqrestore(&dev->slock,flags); } /********************************************************************************/ /* file operations */ 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_dev *dev = video_drvdata(file); int ret; if (vdev->vfl_type != VFL_TYPE_VBI || !dev->ext_vv_data->vbi_fops.write) return -EINVAL; if (mutex_lock_interruptible(vdev->lock)) return -ERESTARTSYS; ret = dev->ext_vv_data->vbi_fops.write(file, data, count, ppos); mutex_unlock(vdev->lock); return ret; } static const struct v4l2_file_operations video_fops = { .owner = THIS_MODULE, .open = v4l2_fh_open, .release = vb2_fop_release, .read = vb2_fop_read, .write = fops_write, .poll = vb2_fop_poll, .mmap = vb2_fop_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); v4l2_device_unregister(&dev->v4l2_dev); 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); v4l2_device_unregister(&dev->v4l2_dev); 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; saa7146_video_uops.init(dev,vv); if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) saa7146_vbi_uops.init(dev,vv); fmt = &vv->video_fmt; fmt->width = 384; fmt->height = 288; fmt->pixelformat = V4L2_PIX_FMT_BGR24; fmt->field = V4L2_FIELD_INTERLACED; 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); 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); 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) { struct vb2_queue *q; int err; int i; DEB_EE("dev:%p, name:'%s', type:%d\n", dev, name, type); vfd->fops = &video_fops; if (type == VFL_TYPE_VIDEO) { vfd->ioctl_ops = &dev->ext_vv_data->vid_ops; q = &dev->vv_data->video_dmaq.q; } else { vfd->ioctl_ops = &dev->ext_vv_data->vbi_ops; q = &dev->vv_data->vbi_dmaq.q; } 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)); vfd->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; vfd->device_caps |= dev->ext_vv_data->capabilities; if (type == VFL_TYPE_VIDEO) { vfd->device_caps &= ~(V4L2_CAP_VBI_CAPTURE | V4L2_CAP_SLICED_VBI_OUTPUT); } else if (vfd->device_caps & V4L2_CAP_SLICED_VBI_OUTPUT) { vfd->vfl_dir = VFL_DIR_TX; vfd->device_caps &= ~(V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING | V4L2_CAP_AUDIO | V4L2_CAP_TUNER); } else { vfd->device_caps &= ~V4L2_CAP_VIDEO_CAPTURE; } q->type = type == VFL_TYPE_VIDEO ? V4L2_BUF_TYPE_VIDEO_CAPTURE : V4L2_BUF_TYPE_VBI_CAPTURE; q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; q->io_modes = VB2_MMAP | VB2_READ | VB2_DMABUF; q->ops = type == VFL_TYPE_VIDEO ? &video_qops : &vbi_qops; q->mem_ops = &vb2_dma_sg_memops; q->drv_priv = dev; q->gfp_flags = __GFP_DMA32; q->buf_struct_size = sizeof(struct saa7146_buf); q->lock = &dev->v4l2_lock; q->min_queued_buffers = 2; q->dev = &dev->pci->dev; err = vb2_queue_init(q); if (err) return err; vfd->queue = q; 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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