/* * Driver for the Conexant CX23885 PCIe bridge * * Copyright (c) 2007 Steven Toth * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include #include #include #include #include #include #include #include #include #include #include #include "cx23885.h" #include #include #ifdef CONFIG_VIDEO_V4L1_COMPAT /* Include V4L1 specific functions. Should be removed soon */ #include #endif MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards"); MODULE_AUTHOR("Steven Toth "); MODULE_LICENSE("GPL"); /* ------------------------------------------------------------------ */ static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET }; static unsigned int vbi_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET }; static unsigned int radio_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET }; module_param_array(video_nr, int, NULL, 0444); module_param_array(vbi_nr, int, NULL, 0444); module_param_array(radio_nr, int, NULL, 0444); MODULE_PARM_DESC(video_nr, "video device numbers"); MODULE_PARM_DESC(vbi_nr, "vbi device numbers"); MODULE_PARM_DESC(radio_nr, "radio device numbers"); static unsigned int video_debug; module_param(video_debug, int, 0644); MODULE_PARM_DESC(video_debug, "enable debug messages [video]"); static unsigned int irq_debug; module_param(irq_debug, int, 0644); MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]"); static unsigned int vid_limit = 16; module_param(vid_limit, int, 0644); MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes"); #define dprintk(level, fmt, arg...)\ do { if (video_debug >= level)\ printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\ } while (0) /* ------------------------------------------------------------------- */ /* static data */ #define FORMAT_FLAGS_PACKED 0x01 static struct cx23885_fmt formats[] = { { .name = "8 bpp, gray", .fourcc = V4L2_PIX_FMT_GREY, .depth = 8, .flags = FORMAT_FLAGS_PACKED, }, { .name = "15 bpp RGB, le", .fourcc = V4L2_PIX_FMT_RGB555, .depth = 16, .flags = FORMAT_FLAGS_PACKED, }, { .name = "15 bpp RGB, be", .fourcc = V4L2_PIX_FMT_RGB555X, .depth = 16, .flags = FORMAT_FLAGS_PACKED, }, { .name = "16 bpp RGB, le", .fourcc = V4L2_PIX_FMT_RGB565, .depth = 16, .flags = FORMAT_FLAGS_PACKED, }, { .name = "16 bpp RGB, be", .fourcc = V4L2_PIX_FMT_RGB565X, .depth = 16, .flags = FORMAT_FLAGS_PACKED, }, { .name = "24 bpp RGB, le", .fourcc = V4L2_PIX_FMT_BGR24, .depth = 24, .flags = FORMAT_FLAGS_PACKED, }, { .name = "32 bpp RGB, le", .fourcc = V4L2_PIX_FMT_BGR32, .depth = 32, .flags = FORMAT_FLAGS_PACKED, }, { .name = "32 bpp RGB, be", .fourcc = V4L2_PIX_FMT_RGB32, .depth = 32, .flags = FORMAT_FLAGS_PACKED, }, { .name = "4:2:2, packed, YUYV", .fourcc = V4L2_PIX_FMT_YUYV, .depth = 16, .flags = FORMAT_FLAGS_PACKED, }, { .name = "4:2:2, packed, UYVY", .fourcc = V4L2_PIX_FMT_UYVY, .depth = 16, .flags = FORMAT_FLAGS_PACKED, }, }; static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc) { unsigned int i; for (i = 0; i < ARRAY_SIZE(formats); i++) if (formats[i].fourcc == fourcc) return formats+i; printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __func__, fourcc); return NULL; } /* ------------------------------------------------------------------- */ static const struct v4l2_queryctrl no_ctl = { .name = "42", .flags = V4L2_CTRL_FLAG_DISABLED, }; static struct cx23885_ctrl cx23885_ctls[] = { /* --- video --- */ { .v = { .id = V4L2_CID_BRIGHTNESS, .name = "Brightness", .minimum = 0x00, .maximum = 0xff, .step = 1, .default_value = 0x7f, .type = V4L2_CTRL_TYPE_INTEGER, }, .off = 128, .reg = LUMA_CTRL, .mask = 0x00ff, .shift = 0, }, { .v = { .id = V4L2_CID_CONTRAST, .name = "Contrast", .minimum = 0, .maximum = 0xff, .step = 1, .default_value = 0x3f, .type = V4L2_CTRL_TYPE_INTEGER, }, .off = 0, .reg = LUMA_CTRL, .mask = 0xff00, .shift = 8, }, { .v = { .id = V4L2_CID_HUE, .name = "Hue", .minimum = 0, .maximum = 0xff, .step = 1, .default_value = 0x7f, .type = V4L2_CTRL_TYPE_INTEGER, }, .off = 128, .reg = CHROMA_CTRL, .mask = 0xff0000, .shift = 16, }, { /* strictly, this only describes only U saturation. * V saturation is handled specially through code. */ .v = { .id = V4L2_CID_SATURATION, .name = "Saturation", .minimum = 0, .maximum = 0xff, .step = 1, .default_value = 0x7f, .type = V4L2_CTRL_TYPE_INTEGER, }, .off = 0, .reg = CHROMA_CTRL, .mask = 0x00ff, .shift = 0, }, { /* --- audio --- */ .v = { .id = V4L2_CID_AUDIO_MUTE, .name = "Mute", .minimum = 0, .maximum = 1, .default_value = 1, .type = V4L2_CTRL_TYPE_BOOLEAN, }, .reg = PATH1_CTL1, .mask = (0x1f << 24), .shift = 24, }, { .v = { .id = V4L2_CID_AUDIO_VOLUME, .name = "Volume", .minimum = 0, .maximum = 0x3f, .step = 1, .default_value = 0x3f, .type = V4L2_CTRL_TYPE_INTEGER, }, .reg = PATH1_VOL_CTL, .mask = 0xff, .shift = 0, } }; static const int CX23885_CTLS = ARRAY_SIZE(cx23885_ctls); /* Must be sorted from low to high control ID! */ static const u32 cx23885_user_ctrls[] = { V4L2_CID_USER_CLASS, V4L2_CID_BRIGHTNESS, V4L2_CID_CONTRAST, V4L2_CID_SATURATION, V4L2_CID_HUE, V4L2_CID_AUDIO_VOLUME, V4L2_CID_AUDIO_MUTE, 0 }; static const u32 *ctrl_classes[] = { cx23885_user_ctrls, NULL }; static void cx23885_video_wakeup(struct cx23885_dev *dev, struct cx23885_dmaqueue *q, u32 count) { struct cx23885_buffer *buf; int bc; for (bc = 0;; bc++) { if (list_empty(&q->active)) break; buf = list_entry(q->active.next, struct cx23885_buffer, vb.queue); /* count comes from the hw and is is 16bit wide -- * this trick handles wrap-arounds correctly for * up to 32767 buffers in flight... */ if ((s16) (count - buf->count) < 0) break; do_gettimeofday(&buf->vb.ts); dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i, count, buf->count); buf->vb.state = VIDEOBUF_DONE; list_del(&buf->vb.queue); wake_up(&buf->vb.done); } if (list_empty(&q->active)) del_timer(&q->timeout); else mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); if (bc != 1) printk(KERN_ERR "%s: %d buffers handled (should be 1)\n", __func__, bc); } static int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm) { dprintk(1, "%s(norm = 0x%08x) name: [%s]\n", __func__, (unsigned int)norm, v4l2_norm_to_name(norm)); dev->tvnorm = norm; /* Tell the analog tuner/demods */ cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_STD, &norm); /* Tell the internal A/V decoder */ cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_STD, &norm); return 0; } static struct video_device *cx23885_vdev_init(struct cx23885_dev *dev, struct pci_dev *pci, struct video_device *template, char *type) { struct video_device *vfd; dprintk(1, "%s()\n", __func__); vfd = video_device_alloc(); if (NULL == vfd) return NULL; *vfd = *template; vfd->minor = -1; vfd->parent = &pci->dev; vfd->release = video_device_release; snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", dev->name, type, cx23885_boards[dev->board].name); return vfd; } static int cx23885_ctrl_query(struct v4l2_queryctrl *qctrl) { int i; if (qctrl->id < V4L2_CID_BASE || qctrl->id >= V4L2_CID_LASTP1) return -EINVAL; for (i = 0; i < CX23885_CTLS; i++) if (cx23885_ctls[i].v.id == qctrl->id) break; if (i == CX23885_CTLS) { *qctrl = no_ctl; return 0; } *qctrl = cx23885_ctls[i].v; return 0; } /* ------------------------------------------------------------------- */ /* resource management */ static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh, unsigned int bit) { dprintk(1, "%s()\n", __func__); if (fh->resources & bit) /* have it already allocated */ return 1; /* is it free? */ mutex_lock(&dev->lock); if (dev->resources & bit) { /* no, someone else uses it */ mutex_unlock(&dev->lock); return 0; } /* it's free, grab it */ fh->resources |= bit; dev->resources |= bit; dprintk(1, "res: get %d\n", bit); mutex_unlock(&dev->lock); return 1; } static int res_check(struct cx23885_fh *fh, unsigned int bit) { return fh->resources & bit; } static int res_locked(struct cx23885_dev *dev, unsigned int bit) { return dev->resources & bit; } static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh, unsigned int bits) { BUG_ON((fh->resources & bits) != bits); dprintk(1, "%s()\n", __func__); mutex_lock(&dev->lock); fh->resources &= ~bits; dev->resources &= ~bits; dprintk(1, "res: put %d\n", bits); mutex_unlock(&dev->lock); } static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input) { struct v4l2_routing route; memset(&route, 0, sizeof(route)); dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n", __func__, input, INPUT(input)->vmux, INPUT(input)->gpio0, INPUT(input)->gpio1, INPUT(input)->gpio2, INPUT(input)->gpio3); dev->input = input; route.input = INPUT(input)->vmux; /* Tell the internal A/V decoder */ cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_INT_S_VIDEO_ROUTING, &route); return 0; } /* ------------------------------------------------------------------ */ static int cx23885_set_scale(struct cx23885_dev *dev, unsigned int width, unsigned int height, enum v4l2_field field) { dprintk(1, "%s()\n", __func__); return 0; } static int cx23885_start_video_dma(struct cx23885_dev *dev, struct cx23885_dmaqueue *q, struct cx23885_buffer *buf) { dprintk(1, "%s()\n", __func__); /* setup fifo + format */ cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01], buf->bpl, buf->risc.dma); cx23885_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field); /* reset counter */ cx_write(VID_A_GPCNT_CTL, 3); q->count = 1; /* enable irq */ cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | 0x01); cx_set(VID_A_INT_MSK, 0x000011); /* start dma */ cx_set(DEV_CNTRL2, (1<<5)); cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */ return 0; } static int cx23885_restart_video_queue(struct cx23885_dev *dev, struct cx23885_dmaqueue *q) { struct cx23885_buffer *buf, *prev; struct list_head *item; dprintk(1, "%s()\n", __func__); if (!list_empty(&q->active)) { buf = list_entry(q->active.next, struct cx23885_buffer, vb.queue); dprintk(2, "restart_queue [%p/%d]: restart dma\n", buf, buf->vb.i); cx23885_start_video_dma(dev, q, buf); list_for_each(item, &q->active) { buf = list_entry(item, struct cx23885_buffer, vb.queue); buf->count = q->count++; } mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); return 0; } prev = NULL; for (;;) { if (list_empty(&q->queued)) return 0; buf = list_entry(q->queued.next, struct cx23885_buffer, vb.queue); if (NULL == prev) { list_move_tail(&buf->vb.queue, &q->active); cx23885_start_video_dma(dev, q, buf); buf->vb.state = VIDEOBUF_ACTIVE; buf->count = q->count++; mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); dprintk(2, "[%p/%d] restart_queue - first active\n", buf, buf->vb.i); } else if (prev->vb.width == buf->vb.width && prev->vb.height == buf->vb.height && prev->fmt == buf->fmt) { list_move_tail(&buf->vb.queue, &q->active); buf->vb.state = VIDEOBUF_ACTIVE; buf->count = q->count++; prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma); prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */ dprintk(2, "[%p/%d] restart_queue - move to active\n", buf, buf->vb.i); } else { return 0; } prev = buf; } } static int buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size) { struct cx23885_fh *fh = q->priv_data; *size = fh->fmt->depth*fh->width*fh->height >> 3; if (0 == *count) *count = 32; while (*size * *count > vid_limit * 1024 * 1024) (*count)--; return 0; } static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb, enum v4l2_field field) { struct cx23885_fh *fh = q->priv_data; struct cx23885_dev *dev = fh->dev; struct cx23885_buffer *buf = container_of(vb, struct cx23885_buffer, vb); int rc, init_buffer = 0; u32 line0_offset, line1_offset; struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb); BUG_ON(NULL == fh->fmt); if (fh->width < 48 || fh->width > norm_maxw(dev->tvnorm) || fh->height < 32 || fh->height > norm_maxh(dev->tvnorm)) return -EINVAL; buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3; if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) return -EINVAL; if (buf->fmt != fh->fmt || buf->vb.width != fh->width || buf->vb.height != fh->height || buf->vb.field != field) { buf->fmt = fh->fmt; buf->vb.width = fh->width; buf->vb.height = fh->height; buf->vb.field = field; init_buffer = 1; } if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { init_buffer = 1; rc = videobuf_iolock(q, &buf->vb, NULL); if (0 != rc) goto fail; } if (init_buffer) { buf->bpl = buf->vb.width * buf->fmt->depth >> 3; switch (buf->vb.field) { case V4L2_FIELD_TOP: cx23885_risc_buffer(dev->pci, &buf->risc, dma->sglist, 0, UNSET, buf->bpl, 0, buf->vb.height); break; case V4L2_FIELD_BOTTOM: cx23885_risc_buffer(dev->pci, &buf->risc, dma->sglist, UNSET, 0, buf->bpl, 0, buf->vb.height); break; case V4L2_FIELD_INTERLACED: if (dev->tvnorm & V4L2_STD_NTSC) { /* cx25840 transmits NTSC bottom field first */ dprintk(1, "%s() Creating NTSC risc\n", __func__); line0_offset = buf->bpl; line1_offset = 0; } else { /* All other formats are top field first */ dprintk(1, "%s() Creating PAL/SECAM risc\n", __func__); line0_offset = 0; line1_offset = buf->bpl; } cx23885_risc_buffer(dev->pci, &buf->risc, dma->sglist, line0_offset, line1_offset, buf->bpl, buf->bpl, buf->vb.height >> 1); break; case V4L2_FIELD_SEQ_TB: cx23885_risc_buffer(dev->pci, &buf->risc, dma->sglist, 0, buf->bpl * (buf->vb.height >> 1), buf->bpl, 0, buf->vb.height >> 1); break; case V4L2_FIELD_SEQ_BT: cx23885_risc_buffer(dev->pci, &buf->risc, dma->sglist, buf->bpl * (buf->vb.height >> 1), 0, buf->bpl, 0, buf->vb.height >> 1); break; default: BUG(); } } dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n", buf, buf->vb.i, fh->width, fh->height, fh->fmt->depth, fh->fmt->name, (unsigned long)buf->risc.dma); buf->vb.state = VIDEOBUF_PREPARED; return 0; fail: cx23885_free_buffer(q, buf); return rc; } static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) { struct cx23885_buffer *buf = container_of(vb, struct cx23885_buffer, vb); struct cx23885_buffer *prev; struct cx23885_fh *fh = vq->priv_data; struct cx23885_dev *dev = fh->dev; struct cx23885_dmaqueue *q = &dev->vidq; /* add jump to stopper */ buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC); buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma); buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */ if (!list_empty(&q->queued)) { list_add_tail(&buf->vb.queue, &q->queued); buf->vb.state = VIDEOBUF_QUEUED; dprintk(2, "[%p/%d] buffer_queue - append to queued\n", buf, buf->vb.i); } else if (list_empty(&q->active)) { list_add_tail(&buf->vb.queue, &q->active); cx23885_start_video_dma(dev, q, buf); buf->vb.state = VIDEOBUF_ACTIVE; buf->count = q->count++; mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); dprintk(2, "[%p/%d] buffer_queue - first active\n", buf, buf->vb.i); } else { prev = list_entry(q->active.prev, struct cx23885_buffer, vb.queue); if (prev->vb.width == buf->vb.width && prev->vb.height == buf->vb.height && prev->fmt == buf->fmt) { list_add_tail(&buf->vb.queue, &q->active); buf->vb.state = VIDEOBUF_ACTIVE; buf->count = q->count++; prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma); /* 64 bit bits 63-32 */ prev->risc.jmp[2] = cpu_to_le32(0); dprintk(2, "[%p/%d] buffer_queue - append to active\n", buf, buf->vb.i); } else { list_add_tail(&buf->vb.queue, &q->queued); buf->vb.state = VIDEOBUF_QUEUED; dprintk(2, "[%p/%d] buffer_queue - first queued\n", buf, buf->vb.i); } } } static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb) { struct cx23885_buffer *buf = container_of(vb, struct cx23885_buffer, vb); cx23885_free_buffer(q, buf); } static struct videobuf_queue_ops cx23885_video_qops = { .buf_setup = buffer_setup, .buf_prepare = buffer_prepare, .buf_queue = buffer_queue, .buf_release = buffer_release, }; static struct videobuf_queue *get_queue(struct cx23885_fh *fh) { switch (fh->type) { case V4L2_BUF_TYPE_VIDEO_CAPTURE: return &fh->vidq; case V4L2_BUF_TYPE_VBI_CAPTURE: return &fh->vbiq; default: BUG(); return NULL; } } static int get_resource(struct cx23885_fh *fh) { switch (fh->type) { case V4L2_BUF_TYPE_VIDEO_CAPTURE: return RESOURCE_VIDEO; case V4L2_BUF_TYPE_VBI_CAPTURE: return RESOURCE_VBI; default: BUG(); return 0; } } static int video_open(struct file *file) { int minor = video_devdata(file)->minor; struct cx23885_dev *h, *dev = NULL; struct cx23885_fh *fh; struct list_head *list; enum v4l2_buf_type type = 0; int radio = 0; lock_kernel(); list_for_each(list, &cx23885_devlist) { h = list_entry(list, struct cx23885_dev, devlist); if (h->video_dev && h->video_dev->minor == minor) { dev = h; type = V4L2_BUF_TYPE_VIDEO_CAPTURE; } if (h->vbi_dev && h->vbi_dev->minor == minor) { dev = h; type = V4L2_BUF_TYPE_VBI_CAPTURE; } if (h->radio_dev && h->radio_dev->minor == minor) { radio = 1; dev = h; } } if (NULL == dev) { unlock_kernel(); return -ENODEV; } dprintk(1, "open minor=%d radio=%d type=%s\n", minor, radio, v4l2_type_names[type]); /* allocate + initialize per filehandle data */ fh = kzalloc(sizeof(*fh), GFP_KERNEL); if (NULL == fh) { unlock_kernel(); return -ENOMEM; } file->private_data = fh; fh->dev = dev; fh->radio = radio; fh->type = type; fh->width = 320; fh->height = 240; fh->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24); videobuf_queue_sg_init(&fh->vidq, &cx23885_video_qops, &dev->pci->dev, &dev->slock, V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FIELD_INTERLACED, sizeof(struct cx23885_buffer), fh); dprintk(1, "post videobuf_queue_init()\n"); unlock_kernel(); return 0; } static ssize_t video_read(struct file *file, char __user *data, size_t count, loff_t *ppos) { struct cx23885_fh *fh = file->private_data; switch (fh->type) { case V4L2_BUF_TYPE_VIDEO_CAPTURE: if (res_locked(fh->dev, RESOURCE_VIDEO)) return -EBUSY; return videobuf_read_one(&fh->vidq, data, count, ppos, file->f_flags & O_NONBLOCK); case V4L2_BUF_TYPE_VBI_CAPTURE: if (!res_get(fh->dev, fh, RESOURCE_VBI)) return -EBUSY; return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1, file->f_flags & O_NONBLOCK); default: BUG(); return 0; } } static unsigned int video_poll(struct file *file, struct poll_table_struct *wait) { struct cx23885_fh *fh = file->private_data; struct cx23885_buffer *buf; if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) { if (!res_get(fh->dev, fh, RESOURCE_VBI)) return POLLERR; return videobuf_poll_stream(file, &fh->vbiq, wait); } if (res_check(fh, RESOURCE_VIDEO)) { /* streaming capture */ if (list_empty(&fh->vidq.stream)) return POLLERR; buf = list_entry(fh->vidq.stream.next, struct cx23885_buffer, vb.stream); } else { /* read() capture */ buf = (struct cx23885_buffer *)fh->vidq.read_buf; if (NULL == buf) return POLLERR; } poll_wait(file, &buf->vb.done, wait); if (buf->vb.state == VIDEOBUF_DONE || buf->vb.state == VIDEOBUF_ERROR) return POLLIN|POLLRDNORM; return 0; } static int video_release(struct file *file) { struct cx23885_fh *fh = file->private_data; struct cx23885_dev *dev = fh->dev; /* turn off overlay */ if (res_check(fh, RESOURCE_OVERLAY)) { /* FIXME */ res_free(dev, fh, RESOURCE_OVERLAY); } /* stop video capture */ if (res_check(fh, RESOURCE_VIDEO)) { videobuf_queue_cancel(&fh->vidq); res_free(dev, fh, RESOURCE_VIDEO); } if (fh->vidq.read_buf) { buffer_release(&fh->vidq, fh->vidq.read_buf); kfree(fh->vidq.read_buf); } /* stop vbi capture */ if (res_check(fh, RESOURCE_VBI)) { if (fh->vbiq.streaming) videobuf_streamoff(&fh->vbiq); if (fh->vbiq.reading) videobuf_read_stop(&fh->vbiq); res_free(dev, fh, RESOURCE_VBI); } videobuf_mmap_free(&fh->vidq); file->private_data = NULL; kfree(fh); /* We are not putting the tuner to sleep here on exit, because * we want to use the mpeg encoder in another session to capture * tuner video. Closing this will result in no video to the encoder. */ return 0; } static int video_mmap(struct file *file, struct vm_area_struct *vma) { struct cx23885_fh *fh = file->private_data; return videobuf_mmap_mapper(get_queue(fh), vma); } /* ------------------------------------------------------------------ */ /* VIDEO CTRL IOCTLS */ static int cx23885_get_control(struct cx23885_dev *dev, struct v4l2_control *ctl) { dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __func__); cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_G_CTRL, ctl); return 0; } static int cx23885_set_control(struct cx23885_dev *dev, struct v4l2_control *ctl) { dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)" " (disabled - no action)\n", __func__); return 0; } static void init_controls(struct cx23885_dev *dev) { struct v4l2_control ctrl; int i; for (i = 0; i < CX23885_CTLS; i++) { ctrl.id = cx23885_ctls[i].v.id; ctrl.value = cx23885_ctls[i].v.default_value; cx23885_set_control(dev, &ctrl); } } /* ------------------------------------------------------------------ */ /* VIDEO IOCTLS */ static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct cx23885_fh *fh = priv; f->fmt.pix.width = fh->width; f->fmt.pix.height = fh->height; f->fmt.pix.field = fh->vidq.field; f->fmt.pix.pixelformat = fh->fmt->fourcc; f->fmt.pix.bytesperline = (f->fmt.pix.width * fh->fmt->depth) >> 3; f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; return 0; } static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; struct cx23885_fmt *fmt; enum v4l2_field field; unsigned int maxw, maxh; fmt = format_by_fourcc(f->fmt.pix.pixelformat); if (NULL == fmt) return -EINVAL; field = f->fmt.pix.field; maxw = norm_maxw(dev->tvnorm); maxh = norm_maxh(dev->tvnorm); if (V4L2_FIELD_ANY == field) { field = (f->fmt.pix.height > maxh/2) ? V4L2_FIELD_INTERLACED : V4L2_FIELD_BOTTOM; } switch (field) { case V4L2_FIELD_TOP: case V4L2_FIELD_BOTTOM: maxh = maxh / 2; break; case V4L2_FIELD_INTERLACED: break; default: return -EINVAL; } f->fmt.pix.field = field; if (f->fmt.pix.height < 32) f->fmt.pix.height = 32; if (f->fmt.pix.height > maxh) f->fmt.pix.height = maxh; if (f->fmt.pix.width < 48) f->fmt.pix.width = 48; if (f->fmt.pix.width > maxw) f->fmt.pix.width = maxw; f->fmt.pix.width &= ~0x03; f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3; f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; return 0; } static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct cx23885_fh *fh = priv; struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; int err; dprintk(2, "%s()\n", __func__); err = vidioc_try_fmt_vid_cap(file, priv, f); if (0 != err) return err; fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat); fh->width = f->fmt.pix.width; fh->height = f->fmt.pix.height; fh->vidq.field = f->fmt.pix.field; dprintk(2, "%s() width=%d height=%d field=%d\n", __func__, fh->width, fh->height, fh->vidq.field); cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_FMT, f); return 0; } static int vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *cap) { struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; strcpy(cap->driver, "cx23885"); strlcpy(cap->card, cx23885_boards[dev->board].name, sizeof(cap->card)); sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci)); cap->version = CX23885_VERSION_CODE; cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | V4L2_CAP_VBI_CAPTURE; if (UNSET != dev->tuner_type) cap->capabilities |= V4L2_CAP_TUNER; return 0; } static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f) { if (unlikely(f->index >= ARRAY_SIZE(formats))) return -EINVAL; strlcpy(f->description, formats[f->index].name, sizeof(f->description)); f->pixelformat = formats[f->index].fourcc; return 0; } #ifdef CONFIG_VIDEO_V4L1_COMPAT static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf) { struct cx23885_fh *fh = priv; struct videobuf_queue *q; struct v4l2_requestbuffers req; unsigned int i; int err; q = get_queue(fh); memset(&req, 0, sizeof(req)); req.type = q->type; req.count = 8; req.memory = V4L2_MEMORY_MMAP; err = videobuf_reqbufs(q, &req); if (err < 0) return err; mbuf->frames = req.count; mbuf->size = 0; for (i = 0; i < mbuf->frames; i++) { mbuf->offsets[i] = q->bufs[i]->boff; mbuf->size += q->bufs[i]->bsize; } return 0; } #endif static int vidioc_reqbufs(struct file *file, void *priv, struct v4l2_requestbuffers *p) { struct cx23885_fh *fh = priv; return videobuf_reqbufs(get_queue(fh), p); } static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *p) { struct cx23885_fh *fh = priv; return videobuf_querybuf(get_queue(fh), p); } static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p) { struct cx23885_fh *fh = priv; return videobuf_qbuf(get_queue(fh), p); } static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p) { struct cx23885_fh *fh = priv; return videobuf_dqbuf(get_queue(fh), p, file->f_flags & O_NONBLOCK); } static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) { struct cx23885_fh *fh = priv; struct cx23885_dev *dev = fh->dev; dprintk(1, "%s()\n", __func__); if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)) return -EINVAL; if (unlikely(i != fh->type)) return -EINVAL; if (unlikely(!res_get(dev, fh, get_resource(fh)))) return -EBUSY; return videobuf_streamon(get_queue(fh)); } static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i) { struct cx23885_fh *fh = priv; struct cx23885_dev *dev = fh->dev; int err, res; dprintk(1, "%s()\n", __func__); if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; if (i != fh->type) return -EINVAL; res = get_resource(fh); err = videobuf_streamoff(get_queue(fh)); if (err < 0) return err; res_free(dev, fh, res); return 0; } static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms) { struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; dprintk(1, "%s()\n", __func__); mutex_lock(&dev->lock); cx23885_set_tvnorm(dev, *tvnorms); mutex_unlock(&dev->lock); return 0; } static int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i) { static const char *iname[] = { [CX23885_VMUX_COMPOSITE1] = "Composite1", [CX23885_VMUX_COMPOSITE2] = "Composite2", [CX23885_VMUX_COMPOSITE3] = "Composite3", [CX23885_VMUX_COMPOSITE4] = "Composite4", [CX23885_VMUX_SVIDEO] = "S-Video", [CX23885_VMUX_TELEVISION] = "Television", [CX23885_VMUX_CABLE] = "Cable TV", [CX23885_VMUX_DVB] = "DVB", [CX23885_VMUX_DEBUG] = "for debug only", }; unsigned int n; dprintk(1, "%s()\n", __func__); n = i->index; if (n >= 4) return -EINVAL; if (0 == INPUT(n)->type) return -EINVAL; memset(i, 0, sizeof(*i)); i->index = n; i->type = V4L2_INPUT_TYPE_CAMERA; strcpy(i->name, iname[INPUT(n)->type]); if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) || (CX23885_VMUX_CABLE == INPUT(n)->type)) i->type = V4L2_INPUT_TYPE_TUNER; i->std = CX23885_NORMS; return 0; } static int vidioc_enum_input(struct file *file, void *priv, struct v4l2_input *i) { struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; dprintk(1, "%s()\n", __func__); return cx23885_enum_input(dev, i); } static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) { struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; *i = dev->input; dprintk(1, "%s() returns %d\n", __func__, *i); return 0; } static int vidioc_s_input(struct file *file, void *priv, unsigned int i) { struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; dprintk(1, "%s(%d)\n", __func__, i); if (i >= 4) { dprintk(1, "%s() -EINVAL\n", __func__); return -EINVAL; } mutex_lock(&dev->lock); cx23885_video_mux(dev, i); mutex_unlock(&dev->lock); return 0; } static int vidioc_queryctrl(struct file *file, void *priv, struct v4l2_queryctrl *qctrl) { qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id); if (unlikely(qctrl->id == 0)) return -EINVAL; return cx23885_ctrl_query(qctrl); } static int vidioc_g_ctrl(struct file *file, void *priv, struct v4l2_control *ctl) { struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; return cx23885_get_control(dev, ctl); } static int vidioc_s_ctrl(struct file *file, void *priv, struct v4l2_control *ctl) { struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; return cx23885_set_control(dev, ctl); } static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) { struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; if (unlikely(UNSET == dev->tuner_type)) return -EINVAL; if (0 != t->index) return -EINVAL; strcpy(t->name, "Television"); t->type = V4L2_TUNER_ANALOG_TV; t->capability = V4L2_TUNER_CAP_NORM; t->rangehigh = 0xffffffffUL; t->signal = 0xffff ; /* LOCKED */ return 0; } static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t) { struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; if (UNSET == dev->tuner_type) return -EINVAL; if (0 != t->index) return -EINVAL; return 0; } static int vidioc_g_frequency(struct file *file, void *priv, struct v4l2_frequency *f) { struct cx23885_fh *fh = priv; struct cx23885_dev *dev = fh->dev; if (unlikely(UNSET == dev->tuner_type)) return -EINVAL; /* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */ f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; f->frequency = dev->freq; cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_G_FREQUENCY, f); return 0; } static int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f) { if (unlikely(UNSET == dev->tuner_type)) return -EINVAL; if (unlikely(f->tuner != 0)) return -EINVAL; mutex_lock(&dev->lock); dev->freq = f->frequency; cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_FREQUENCY, f); /* When changing channels it is required to reset TVAUDIO */ msleep(10); mutex_unlock(&dev->lock); return 0; } static int vidioc_s_frequency(struct file *file, void *priv, struct v4l2_frequency *f) { struct cx23885_fh *fh = priv; struct cx23885_dev *dev = fh->dev; if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV)) return -EINVAL; if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO)) return -EINVAL; return cx23885_set_freq(dev, f); } #ifdef CONFIG_VIDEO_ADV_DEBUG static int vidioc_g_register(struct file *file, void *fh, struct v4l2_dbg_register *reg) { struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev; if (!v4l2_chip_match_host(®->match)) return -EINVAL; cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_G_REGISTER, reg); return 0; } static int vidioc_s_register(struct file *file, void *fh, struct v4l2_dbg_register *reg) { struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev; if (!v4l2_chip_match_host(®->match)) return -EINVAL; cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_S_REGISTER, reg); return 0; } #endif /* ----------------------------------------------------------- */ static void cx23885_vid_timeout(unsigned long data) { struct cx23885_dev *dev = (struct cx23885_dev *)data; struct cx23885_dmaqueue *q = &dev->vidq; struct cx23885_buffer *buf; unsigned long flags; cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]); cx_clear(VID_A_DMA_CTL, 0x11); spin_lock_irqsave(&dev->slock, flags); while (!list_empty(&q->active)) { buf = list_entry(q->active.next, struct cx23885_buffer, vb.queue); list_del(&buf->vb.queue); buf->vb.state = VIDEOBUF_ERROR; wake_up(&buf->vb.done); printk(KERN_ERR "%s/0: [%p/%d] timeout - dma=0x%08lx\n", dev->name, buf, buf->vb.i, (unsigned long)buf->risc.dma); } cx23885_restart_video_queue(dev, q); spin_unlock_irqrestore(&dev->slock, flags); } int cx23885_video_irq(struct cx23885_dev *dev, u32 status) { u32 mask, count; int handled = 0; mask = cx_read(VID_A_INT_MSK); if (0 == (status & mask)) return handled; cx_write(VID_A_INT_STAT, status); dprintk(2, "%s() status = 0x%08x\n", __func__, status); /* risc op code error */ if (status & (1 << 16)) { printk(KERN_WARNING "%s/0: video risc op code error\n", dev->name); cx_clear(VID_A_DMA_CTL, 0x11); cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]); } /* risc1 y */ if (status & 0x01) { spin_lock(&dev->slock); count = cx_read(VID_A_GPCNT); cx23885_video_wakeup(dev, &dev->vidq, count); spin_unlock(&dev->slock); handled++; } /* risc2 y */ if (status & 0x10) { dprintk(2, "stopper video\n"); spin_lock(&dev->slock); cx23885_restart_video_queue(dev, &dev->vidq); spin_unlock(&dev->slock); handled++; } return handled; } /* ----------------------------------------------------------- */ /* exported stuff */ static const struct v4l2_file_operations video_fops = { .owner = THIS_MODULE, .open = video_open, .release = video_release, .read = video_read, .poll = video_poll, .mmap = video_mmap, .ioctl = video_ioctl2, }; static const struct v4l2_ioctl_ops video_ioctl_ops = { .vidioc_querycap = vidioc_querycap, .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, .vidioc_g_fmt_vbi_cap = cx23885_vbi_fmt, .vidioc_try_fmt_vbi_cap = cx23885_vbi_fmt, .vidioc_s_fmt_vbi_cap = cx23885_vbi_fmt, .vidioc_reqbufs = vidioc_reqbufs, .vidioc_querybuf = vidioc_querybuf, .vidioc_qbuf = vidioc_qbuf, .vidioc_dqbuf = vidioc_dqbuf, .vidioc_s_std = vidioc_s_std, .vidioc_enum_input = vidioc_enum_input, .vidioc_g_input = vidioc_g_input, .vidioc_s_input = vidioc_s_input, .vidioc_queryctrl = vidioc_queryctrl, .vidioc_g_ctrl = vidioc_g_ctrl, .vidioc_s_ctrl = vidioc_s_ctrl, .vidioc_streamon = vidioc_streamon, .vidioc_streamoff = vidioc_streamoff, #ifdef CONFIG_VIDEO_V4L1_COMPAT .vidiocgmbuf = vidiocgmbuf, #endif .vidioc_g_tuner = vidioc_g_tuner, .vidioc_s_tuner = vidioc_s_tuner, .vidioc_g_frequency = vidioc_g_frequency, .vidioc_s_frequency = vidioc_s_frequency, #ifdef CONFIG_VIDEO_ADV_DEBUG .vidioc_g_register = vidioc_g_register, .vidioc_s_register = vidioc_s_register, #endif }; static struct video_device cx23885_vbi_template; static struct video_device cx23885_video_template = { .name = "cx23885-video", .fops = &video_fops, .minor = -1, .ioctl_ops = &video_ioctl_ops, .tvnorms = CX23885_NORMS, .current_norm = V4L2_STD_NTSC_M, }; static const struct v4l2_file_operations radio_fops = { .owner = THIS_MODULE, .open = video_open, .release = video_release, .ioctl = video_ioctl2, }; void cx23885_video_unregister(struct cx23885_dev *dev) { dprintk(1, "%s()\n", __func__); cx_clear(PCI_INT_MSK, 1); if (dev->video_dev) { if (-1 != dev->video_dev->minor) video_unregister_device(dev->video_dev); else video_device_release(dev->video_dev); dev->video_dev = NULL; btcx_riscmem_free(dev->pci, &dev->vidq.stopper); } } int cx23885_video_register(struct cx23885_dev *dev) { int err; dprintk(1, "%s()\n", __func__); spin_lock_init(&dev->slock); /* Initialize VBI template */ memcpy(&cx23885_vbi_template, &cx23885_video_template, sizeof(cx23885_vbi_template)); strcpy(cx23885_vbi_template.name, "cx23885-vbi"); dev->tvnorm = cx23885_video_template.current_norm; /* init video dma queues */ INIT_LIST_HEAD(&dev->vidq.active); INIT_LIST_HEAD(&dev->vidq.queued); dev->vidq.timeout.function = cx23885_vid_timeout; dev->vidq.timeout.data = (unsigned long)dev; init_timer(&dev->vidq.timeout); cx23885_risc_stopper(dev->pci, &dev->vidq.stopper, VID_A_DMA_CTL, 0x11, 0x00); /* Don't enable VBI yet */ cx_set(PCI_INT_MSK, 1); /* register v4l devices */ dev->video_dev = cx23885_vdev_init(dev, dev->pci, &cx23885_video_template, "video"); err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER, video_nr[dev->nr]); if (err < 0) { printk(KERN_INFO "%s: can't register video device\n", dev->name); goto fail_unreg; } printk(KERN_INFO "%s/0: registered device video%d [v4l2]\n", dev->name, dev->video_dev->num); /* initial device configuration */ mutex_lock(&dev->lock); cx23885_set_tvnorm(dev, dev->tvnorm); init_controls(dev); cx23885_video_mux(dev, 0); mutex_unlock(&dev->lock); return 0; fail_unreg: cx23885_video_unregister(dev); return err; }