diff options
Diffstat (limited to 'drivers/media/video/saa7164/saa7164-vbi.c')
| -rw-r--r-- | drivers/media/video/saa7164/saa7164-vbi.c | 1374 |
1 files changed, 0 insertions, 1374 deletions
diff --git a/drivers/media/video/saa7164/saa7164-vbi.c b/drivers/media/video/saa7164/saa7164-vbi.c deleted file mode 100644 index d8e6c8f14079..000000000000 --- a/drivers/media/video/saa7164/saa7164-vbi.c +++ /dev/null @@ -1,1374 +0,0 @@ -/* - * Driver for the NXP SAA7164 PCIe bridge - * - * Copyright (c) 2010 Steven Toth <stoth@kernellabs.com> - * - * 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 "saa7164.h" - -static struct saa7164_tvnorm saa7164_tvnorms[] = { - { - .name = "NTSC-M", - .id = V4L2_STD_NTSC_M, - }, { - .name = "NTSC-JP", - .id = V4L2_STD_NTSC_M_JP, - } -}; - -static const u32 saa7164_v4l2_ctrls[] = { - 0 -}; - -/* Take the encoder configuration from the port struct and - * flush it to the hardware. - */ -static void saa7164_vbi_configure(struct saa7164_port *port) -{ - struct saa7164_dev *dev = port->dev; - dprintk(DBGLVL_VBI, "%s()\n", __func__); - - port->vbi_params.width = port->width; - port->vbi_params.height = port->height; - port->vbi_params.is_50hz = - (port->encodernorm.id & V4L2_STD_625_50) != 0; - - /* Set up the DIF (enable it) for analog mode by default */ - saa7164_api_initialize_dif(port); - - /* Configure the correct video standard */ -#if 0 - saa7164_api_configure_dif(port, port->encodernorm.id); -#endif - -#if 0 - /* Ensure the audio decoder is correct configured */ - saa7164_api_set_audio_std(port); -#endif - dprintk(DBGLVL_VBI, "%s() ends\n", __func__); -} - -static int saa7164_vbi_buffers_dealloc(struct saa7164_port *port) -{ - struct list_head *c, *n, *p, *q, *l, *v; - struct saa7164_dev *dev = port->dev; - struct saa7164_buffer *buf; - struct saa7164_user_buffer *ubuf; - - /* Remove any allocated buffers */ - mutex_lock(&port->dmaqueue_lock); - - dprintk(DBGLVL_VBI, "%s(port=%d) dmaqueue\n", __func__, port->nr); - list_for_each_safe(c, n, &port->dmaqueue.list) { - buf = list_entry(c, struct saa7164_buffer, list); - list_del(c); - saa7164_buffer_dealloc(buf); - } - - dprintk(DBGLVL_VBI, "%s(port=%d) used\n", __func__, port->nr); - list_for_each_safe(p, q, &port->list_buf_used.list) { - ubuf = list_entry(p, struct saa7164_user_buffer, list); - list_del(p); - saa7164_buffer_dealloc_user(ubuf); - } - - dprintk(DBGLVL_VBI, "%s(port=%d) free\n", __func__, port->nr); - list_for_each_safe(l, v, &port->list_buf_free.list) { - ubuf = list_entry(l, struct saa7164_user_buffer, list); - list_del(l); - saa7164_buffer_dealloc_user(ubuf); - } - - mutex_unlock(&port->dmaqueue_lock); - dprintk(DBGLVL_VBI, "%s(port=%d) done\n", __func__, port->nr); - - return 0; -} - -/* Dynamic buffer switch at vbi start time */ -static int saa7164_vbi_buffers_alloc(struct saa7164_port *port) -{ - struct saa7164_dev *dev = port->dev; - struct saa7164_buffer *buf; - struct saa7164_user_buffer *ubuf; - struct tmHWStreamParameters *params = &port->hw_streamingparams; - int result = -ENODEV, i; - int len = 0; - - dprintk(DBGLVL_VBI, "%s()\n", __func__); - - /* TODO: NTSC SPECIFIC */ - /* Init and establish defaults */ - params->samplesperline = 1440; - params->numberoflines = 12; - params->numberoflines = 18; - params->pitch = 1600; - params->pitch = 1440; - params->numpagetables = 2 + - ((params->numberoflines * params->pitch) / PAGE_SIZE); - params->bitspersample = 8; - params->linethreshold = 0; - params->pagetablelistvirt = NULL; - params->pagetablelistphys = NULL; - params->numpagetableentries = port->hwcfg.buffercount; - - /* Allocate the PCI resources, buffers (hard) */ - for (i = 0; i < port->hwcfg.buffercount; i++) { - buf = saa7164_buffer_alloc(port, - params->numberoflines * - params->pitch); - - if (!buf) { - printk(KERN_ERR "%s() failed " - "(errno = %d), unable to allocate buffer\n", - __func__, result); - result = -ENOMEM; - goto failed; - } else { - - mutex_lock(&port->dmaqueue_lock); - list_add_tail(&buf->list, &port->dmaqueue.list); - mutex_unlock(&port->dmaqueue_lock); - - } - } - - /* Allocate some kernel buffers for copying - * to userpsace. - */ - len = params->numberoflines * params->pitch; - - if (vbi_buffers < 16) - vbi_buffers = 16; - if (vbi_buffers > 512) - vbi_buffers = 512; - - for (i = 0; i < vbi_buffers; i++) { - - ubuf = saa7164_buffer_alloc_user(dev, len); - if (ubuf) { - mutex_lock(&port->dmaqueue_lock); - list_add_tail(&ubuf->list, &port->list_buf_free.list); - mutex_unlock(&port->dmaqueue_lock); - } - - } - - result = 0; - -failed: - return result; -} - - -static int saa7164_vbi_initialize(struct saa7164_port *port) -{ - saa7164_vbi_configure(port); - return 0; -} - -/* -- V4L2 --------------------------------------------------------- */ -static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *id) -{ - struct saa7164_vbi_fh *fh = file->private_data; - struct saa7164_port *port = fh->port; - struct saa7164_dev *dev = port->dev; - unsigned int i; - - dprintk(DBGLVL_VBI, "%s(id=0x%x)\n", __func__, (u32)*id); - - for (i = 0; i < ARRAY_SIZE(saa7164_tvnorms); i++) { - if (*id & saa7164_tvnorms[i].id) - break; - } - if (i == ARRAY_SIZE(saa7164_tvnorms)) - return -EINVAL; - - port->encodernorm = saa7164_tvnorms[i]; - - /* Update the audio decoder while is not running in - * auto detect mode. - */ - saa7164_api_set_audio_std(port); - - dprintk(DBGLVL_VBI, "%s(id=0x%x) OK\n", __func__, (u32)*id); - - return 0; -} - -static int vidioc_enum_input(struct file *file, void *priv, - struct v4l2_input *i) -{ - int n; - - char *inputs[] = { "tuner", "composite", "svideo", "aux", - "composite 2", "svideo 2", "aux 2" }; - - if (i->index >= 7) - return -EINVAL; - - strcpy(i->name, inputs[i->index]); - - if (i->index == 0) - i->type = V4L2_INPUT_TYPE_TUNER; - else - i->type = V4L2_INPUT_TYPE_CAMERA; - - for (n = 0; n < ARRAY_SIZE(saa7164_tvnorms); n++) - i->std |= saa7164_tvnorms[n].id; - - return 0; -} - -static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) -{ - struct saa7164_vbi_fh *fh = file->private_data; - struct saa7164_port *port = fh->port; - struct saa7164_dev *dev = port->dev; - - if (saa7164_api_get_videomux(port) != SAA_OK) - return -EIO; - - *i = (port->mux_input - 1); - - dprintk(DBGLVL_VBI, "%s() input=%d\n", __func__, *i); - - return 0; -} - -static int vidioc_s_input(struct file *file, void *priv, unsigned int i) -{ - struct saa7164_vbi_fh *fh = file->private_data; - struct saa7164_port *port = fh->port; - struct saa7164_dev *dev = port->dev; - - dprintk(DBGLVL_VBI, "%s() input=%d\n", __func__, i); - - if (i >= 7) - return -EINVAL; - - port->mux_input = i + 1; - - if (saa7164_api_set_videomux(port) != SAA_OK) - return -EIO; - - return 0; -} - -static int vidioc_g_tuner(struct file *file, void *priv, - struct v4l2_tuner *t) -{ - struct saa7164_vbi_fh *fh = file->private_data; - struct saa7164_port *port = fh->port; - struct saa7164_dev *dev = port->dev; - - if (0 != t->index) - return -EINVAL; - - strcpy(t->name, "tuner"); - t->type = V4L2_TUNER_ANALOG_TV; - t->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO; - - dprintk(DBGLVL_VBI, "VIDIOC_G_TUNER: tuner type %d\n", t->type); - - return 0; -} - -static int vidioc_s_tuner(struct file *file, void *priv, - struct v4l2_tuner *t) -{ - /* Update the A/V core */ - return 0; -} - -static int vidioc_g_frequency(struct file *file, void *priv, - struct v4l2_frequency *f) -{ - struct saa7164_vbi_fh *fh = file->private_data; - struct saa7164_port *port = fh->port; - - f->type = V4L2_TUNER_ANALOG_TV; - f->frequency = port->freq; - - return 0; -} - -static int vidioc_s_frequency(struct file *file, void *priv, - struct v4l2_frequency *f) -{ - struct saa7164_vbi_fh *fh = file->private_data; - struct saa7164_port *port = fh->port; - struct saa7164_dev *dev = port->dev; - struct saa7164_port *tsport; - struct dvb_frontend *fe; - - /* TODO: Pull this for the std */ - struct analog_parameters params = { - .mode = V4L2_TUNER_ANALOG_TV, - .audmode = V4L2_TUNER_MODE_STEREO, - .std = port->encodernorm.id, - .frequency = f->frequency - }; - - /* Stop the encoder */ - dprintk(DBGLVL_VBI, "%s() frequency=%d tuner=%d\n", __func__, - f->frequency, f->tuner); - - if (f->tuner != 0) - return -EINVAL; - - if (f->type != V4L2_TUNER_ANALOG_TV) - return -EINVAL; - - port->freq = f->frequency; - - /* Update the hardware */ - if (port->nr == SAA7164_PORT_VBI1) - tsport = &dev->ports[SAA7164_PORT_TS1]; - else - if (port->nr == SAA7164_PORT_VBI2) - tsport = &dev->ports[SAA7164_PORT_TS2]; - else - BUG(); - - fe = tsport->dvb.frontend; - - if (fe && fe->ops.tuner_ops.set_analog_params) - fe->ops.tuner_ops.set_analog_params(fe, ¶ms); - else - printk(KERN_ERR "%s() No analog tuner, aborting\n", __func__); - - saa7164_vbi_initialize(port); - - return 0; -} - -static int vidioc_g_ctrl(struct file *file, void *priv, - struct v4l2_control *ctl) -{ - struct saa7164_vbi_fh *fh = file->private_data; - struct saa7164_port *port = fh->port; - struct saa7164_dev *dev = port->dev; - - dprintk(DBGLVL_VBI, "%s(id=%d, value=%d)\n", __func__, - ctl->id, ctl->value); - - switch (ctl->id) { - case V4L2_CID_BRIGHTNESS: - ctl->value = port->ctl_brightness; - break; - case V4L2_CID_CONTRAST: - ctl->value = port->ctl_contrast; - break; - case V4L2_CID_SATURATION: - ctl->value = port->ctl_saturation; - break; - case V4L2_CID_HUE: - ctl->value = port->ctl_hue; - break; - case V4L2_CID_SHARPNESS: - ctl->value = port->ctl_sharpness; - break; - case V4L2_CID_AUDIO_VOLUME: - ctl->value = port->ctl_volume; - break; - default: - return -EINVAL; - } - - return 0; -} - -static int vidioc_s_ctrl(struct file *file, void *priv, - struct v4l2_control *ctl) -{ - struct saa7164_vbi_fh *fh = file->private_data; - struct saa7164_port *port = fh->port; - struct saa7164_dev *dev = port->dev; - int ret = 0; - - dprintk(DBGLVL_VBI, "%s(id=%d, value=%d)\n", __func__, - ctl->id, ctl->value); - - switch (ctl->id) { - case V4L2_CID_BRIGHTNESS: - if ((ctl->value >= 0) && (ctl->value <= 255)) { - port->ctl_brightness = ctl->value; - saa7164_api_set_usercontrol(port, - PU_BRIGHTNESS_CONTROL); - } else - ret = -EINVAL; - break; - case V4L2_CID_CONTRAST: - if ((ctl->value >= 0) && (ctl->value <= 255)) { - port->ctl_contrast = ctl->value; - saa7164_api_set_usercontrol(port, PU_CONTRAST_CONTROL); - } else - ret = -EINVAL; - break; - case V4L2_CID_SATURATION: - if ((ctl->value >= 0) && (ctl->value <= 255)) { - port->ctl_saturation = ctl->value; - saa7164_api_set_usercontrol(port, - PU_SATURATION_CONTROL); - } else - ret = -EINVAL; - break; - case V4L2_CID_HUE: - if ((ctl->value >= 0) && (ctl->value <= 255)) { - port->ctl_hue = ctl->value; - saa7164_api_set_usercontrol(port, PU_HUE_CONTROL); - } else - ret = -EINVAL; - break; - case V4L2_CID_SHARPNESS: - if ((ctl->value >= 0) && (ctl->value <= 255)) { - port->ctl_sharpness = ctl->value; - saa7164_api_set_usercontrol(port, PU_SHARPNESS_CONTROL); - } else - ret = -EINVAL; - break; - case V4L2_CID_AUDIO_VOLUME: - if ((ctl->value >= -83) && (ctl->value <= 24)) { - port->ctl_volume = ctl->value; - saa7164_api_set_audio_volume(port, port->ctl_volume); - } else - ret = -EINVAL; - break; - default: - ret = -EINVAL; - } - - return ret; -} - -static int saa7164_get_ctrl(struct saa7164_port *port, - struct v4l2_ext_control *ctrl) -{ - struct saa7164_vbi_params *params = &port->vbi_params; - - switch (ctrl->id) { - case V4L2_CID_MPEG_STREAM_TYPE: - ctrl->value = params->stream_type; - break; - case V4L2_CID_MPEG_AUDIO_MUTE: - ctrl->value = params->ctl_mute; - break; - case V4L2_CID_MPEG_VIDEO_ASPECT: - ctrl->value = params->ctl_aspect; - break; - case V4L2_CID_MPEG_VIDEO_B_FRAMES: - ctrl->value = params->refdist; - break; - case V4L2_CID_MPEG_VIDEO_GOP_SIZE: - ctrl->value = params->gop_size; - break; - default: - return -EINVAL; - } - return 0; -} - -static int vidioc_g_ext_ctrls(struct file *file, void *priv, - struct v4l2_ext_controls *ctrls) -{ - struct saa7164_vbi_fh *fh = file->private_data; - struct saa7164_port *port = fh->port; - int i, err = 0; - - if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) { - for (i = 0; i < ctrls->count; i++) { - struct v4l2_ext_control *ctrl = ctrls->controls + i; - - err = saa7164_get_ctrl(port, ctrl); - if (err) { - ctrls->error_idx = i; - break; - } - } - return err; - - } - - return -EINVAL; -} - -static int saa7164_try_ctrl(struct v4l2_ext_control *ctrl, int ac3) -{ - int ret = -EINVAL; - - switch (ctrl->id) { - case V4L2_CID_MPEG_STREAM_TYPE: - if ((ctrl->value == V4L2_MPEG_STREAM_TYPE_MPEG2_PS) || - (ctrl->value == V4L2_MPEG_STREAM_TYPE_MPEG2_TS)) - ret = 0; - break; - case V4L2_CID_MPEG_AUDIO_MUTE: - if ((ctrl->value >= 0) && - (ctrl->value <= 1)) - ret = 0; - break; - case V4L2_CID_MPEG_VIDEO_ASPECT: - if ((ctrl->value >= V4L2_MPEG_VIDEO_ASPECT_1x1) && - (ctrl->value <= V4L2_MPEG_VIDEO_ASPECT_221x100)) - ret = 0; - break; - case V4L2_CID_MPEG_VIDEO_GOP_SIZE: - if ((ctrl->value >= 0) && - (ctrl->value <= 255)) - ret = 0; - break; - case V4L2_CID_MPEG_VIDEO_B_FRAMES: - if ((ctrl->value >= 1) && - (ctrl->value <= 3)) - ret = 0; - break; - default: - ret = -EINVAL; - } - - return ret; -} - -static int vidioc_try_ext_ctrls(struct file *file, void *priv, - struct v4l2_ext_controls *ctrls) -{ - int i, err = 0; - - if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) { - for (i = 0; i < ctrls->count; i++) { - struct v4l2_ext_control *ctrl = ctrls->controls + i; - - err = saa7164_try_ctrl(ctrl, 0); - if (err) { - ctrls->error_idx = i; - break; - } - } - return err; - } - - return -EINVAL; -} - -static int saa7164_set_ctrl(struct saa7164_port *port, - struct v4l2_ext_control *ctrl) -{ - struct saa7164_vbi_params *params = &port->vbi_params; - int ret = 0; - - switch (ctrl->id) { - case V4L2_CID_MPEG_STREAM_TYPE: - params->stream_type = ctrl->value; - break; - case V4L2_CID_MPEG_AUDIO_MUTE: - params->ctl_mute = ctrl->value; - ret = saa7164_api_audio_mute(port, params->ctl_mute); - if (ret != SAA_OK) { - printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, - ret); - ret = -EIO; - } - break; - case V4L2_CID_MPEG_VIDEO_ASPECT: - params->ctl_aspect = ctrl->value; - ret = saa7164_api_set_aspect_ratio(port); - if (ret != SAA_OK) { - printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, - ret); - ret = -EIO; - } - break; - case V4L2_CID_MPEG_VIDEO_B_FRAMES: - params->refdist = ctrl->value; - break; - case V4L2_CID_MPEG_VIDEO_GOP_SIZE: - params->gop_size = ctrl->value; - break; - default: - return -EINVAL; - } - - /* TODO: Update the hardware */ - - return ret; -} - -static int vidioc_s_ext_ctrls(struct file *file, void *priv, - struct v4l2_ext_controls *ctrls) -{ - struct saa7164_vbi_fh *fh = file->private_data; - struct saa7164_port *port = fh->port; - int i, err = 0; - - if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) { - for (i = 0; i < ctrls->count; i++) { - struct v4l2_ext_control *ctrl = ctrls->controls + i; - - err = saa7164_try_ctrl(ctrl, 0); - if (err) { - ctrls->error_idx = i; - break; - } - err = saa7164_set_ctrl(port, ctrl); - if (err) { - ctrls->error_idx = i; - break; - } - } - return err; - - } - - return -EINVAL; -} - -static int vidioc_querycap(struct file *file, void *priv, - struct v4l2_capability *cap) -{ - struct saa7164_vbi_fh *fh = file->private_data; - struct saa7164_port *port = fh->port; - struct saa7164_dev *dev = port->dev; - - strcpy(cap->driver, dev->name); - strlcpy(cap->card, saa7164_boards[dev->board].name, - sizeof(cap->card)); - sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci)); - - cap->capabilities = - V4L2_CAP_VBI_CAPTURE | - V4L2_CAP_READWRITE | - 0; - - cap->capabilities |= V4L2_CAP_TUNER; - cap->version = 0; - - return 0; -} - -static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_fmtdesc *f) -{ - if (f->index != 0) - return -EINVAL; - - strlcpy(f->description, "VBI", sizeof(f->description)); - f->pixelformat = V4L2_PIX_FMT_MPEG; - - return 0; -} - -static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct saa7164_vbi_fh *fh = file->private_data; - struct saa7164_port *port = fh->port; - struct saa7164_dev *dev = port->dev; - - f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG; - f->fmt.pix.bytesperline = 0; - f->fmt.pix.sizeimage = - port->ts_packet_size * port->ts_packet_count; - f->fmt.pix.colorspace = 0; - f->fmt.pix.width = port->width; - f->fmt.pix.height = port->height; - - dprintk(DBGLVL_VBI, "VIDIOC_G_FMT: w: %d, h: %d\n", - port->width, port->height); - - return 0; -} - -static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct saa7164_vbi_fh *fh = file->private_data; - struct saa7164_port *port = fh->port; - struct saa7164_dev *dev = port->dev; - - f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG; - f->fmt.pix.bytesperline = 0; - f->fmt.pix.sizeimage = - port->ts_packet_size * port->ts_packet_count; - f->fmt.pix.colorspace = 0; - dprintk(DBGLVL_VBI, "VIDIOC_TRY_FMT: w: %d, h: %d\n", - port->width, port->height); - return 0; -} - -static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct saa7164_vbi_fh *fh = file->private_data; - struct saa7164_port *port = fh->port; - struct saa7164_dev *dev = port->dev; - - f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG; - f->fmt.pix.bytesperline = 0; - f->fmt.pix.sizeimage = - port->ts_packet_size * port->ts_packet_count; - f->fmt.pix.colorspace = 0; - - dprintk(DBGLVL_VBI, "VIDIOC_S_FMT: w: %d, h: %d, f: %d\n", - f->fmt.pix.width, f->fmt.pix.height, f->fmt.pix.field); - - return 0; -} - -static int fill_queryctrl(struct saa7164_vbi_params *params, - struct v4l2_queryctrl *c) -{ - switch (c->id) { - case V4L2_CID_BRIGHTNESS: - return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 127); - case V4L2_CID_CONTRAST: - return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 66); - case V4L2_CID_SATURATION: - return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 62); - case V4L2_CID_HUE: - return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 128); - case V4L2_CID_SHARPNESS: - return v4l2_ctrl_query_fill(c, 0x0, 0x0f, 1, 8); - case V4L2_CID_MPEG_AUDIO_MUTE: - return v4l2_ctrl_query_fill(c, 0x0, 0x01, 1, 0); - case V4L2_CID_AUDIO_VOLUME: - return v4l2_ctrl_query_fill(c, -83, 24, 1, 20); - case V4L2_CID_MPEG_STREAM_TYPE: - return v4l2_ctrl_query_fill(c, - V4L2_MPEG_STREAM_TYPE_MPEG2_PS, - V4L2_MPEG_STREAM_TYPE_MPEG2_TS, - 1, V4L2_MPEG_STREAM_TYPE_MPEG2_PS); - case V4L2_CID_MPEG_VIDEO_ASPECT: - return v4l2_ctrl_query_fill(c, - V4L2_MPEG_VIDEO_ASPECT_1x1, - V4L2_MPEG_VIDEO_ASPECT_221x100, - 1, V4L2_MPEG_VIDEO_ASPECT_4x3); - case V4L2_CID_MPEG_VIDEO_GOP_SIZE: - return v4l2_ctrl_query_fill(c, 1, 255, 1, 15); - case V4L2_CID_MPEG_VIDEO_B_FRAMES: - return v4l2_ctrl_query_fill(c, - 1, 3, 1, 1); - default: - return -EINVAL; - } -} - -static int vidioc_queryctrl(struct file *file, void *priv, - struct v4l2_queryctrl *c) -{ - struct saa7164_vbi_fh *fh = priv; - struct saa7164_port *port = fh->port; - int i, next; - u32 id = c->id; - - memset(c, 0, sizeof(*c)); - - next = !!(id & V4L2_CTRL_FLAG_NEXT_CTRL); - c->id = id & ~V4L2_CTRL_FLAG_NEXT_CTRL; - - for (i = 0; i < ARRAY_SIZE(saa7164_v4l2_ctrls); i++) { - if (next) { - if (c->id < saa7164_v4l2_ctrls[i]) - c->id = saa7164_v4l2_ctrls[i]; - else - continue; - } - - if (c->id == saa7164_v4l2_ctrls[i]) - return fill_queryctrl(&port->vbi_params, c); - - if (c->id < saa7164_v4l2_ctrls[i]) - break; - } - - return -EINVAL; -} - -static int saa7164_vbi_stop_port(struct saa7164_port *port) -{ - struct saa7164_dev *dev = port->dev; - int ret; - - ret = saa7164_api_transition_port(port, SAA_DMASTATE_STOP); - if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) { - printk(KERN_ERR "%s() stop transition failed, ret = 0x%x\n", - __func__, ret); - ret = -EIO; - } else { - dprintk(DBGLVL_VBI, "%s() Stopped\n", __func__); - ret = 0; - } - - return ret; -} - -static int saa7164_vbi_acquire_port(struct saa7164_port *port) -{ - struct saa7164_dev *dev = port->dev; - int ret; - - ret = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE); - if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) { - printk(KERN_ERR "%s() acquire transition failed, ret = 0x%x\n", - __func__, ret); - ret = -EIO; - } else { - dprintk(DBGLVL_VBI, "%s() Acquired\n", __func__); - ret = 0; - } - - return ret; -} - -static int saa7164_vbi_pause_port(struct saa7164_port *port) -{ - struct saa7164_dev *dev = port->dev; - int ret; - - ret = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE); - if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) { - printk(KERN_ERR "%s() pause transition failed, ret = 0x%x\n", - __func__, ret); - ret = -EIO; - } else { - dprintk(DBGLVL_VBI, "%s() Paused\n", __func__); - ret = 0; - } - - return ret; -} - -/* Firmware is very windows centric, meaning you have to transition - * the part through AVStream / KS Windows stages, forwards or backwards. - * States are: stopped, acquired (h/w), paused, started. - * We have to leave here will all of the soft buffers on the free list, - * else the cfg_post() func won't have soft buffers to correctly configure. - */ -static int saa7164_vbi_stop_streaming(struct saa7164_port *port) -{ - struct saa7164_dev *dev = port->dev; - struct saa7164_buffer *buf; - struct saa7164_user_buffer *ubuf; - struct list_head *c, *n; - int ret; - - dprintk(DBGLVL_VBI, "%s(port=%d)\n", __func__, port->nr); - - ret = saa7164_vbi_pause_port(port); - ret = saa7164_vbi_acquire_port(port); - ret = saa7164_vbi_stop_port(port); - - dprintk(DBGLVL_VBI, "%s(port=%d) Hardware stopped\n", __func__, - port->nr); - - /* Reset the state of any allocated buffer resources */ - mutex_lock(&port->dmaqueue_lock); - - /* Reset the hard and soft buffer state */ - list_for_each_safe(c, n, &port->dmaqueue.list) { - buf = list_entry(c, struct saa7164_buffer, list); - buf->flags = SAA7164_BUFFER_FREE; - buf->pos = 0; - } - - list_for_each_safe(c, n, &port->list_buf_used.list) { - ubuf = list_entry(c, struct saa7164_user_buffer, list); - ubuf->pos = 0; - list_move_tail(&ubuf->list, &port->list_buf_free.list); - } - - mutex_unlock(&port->dmaqueue_lock); - - /* Free any allocated resources */ - saa7164_vbi_buffers_dealloc(port); - - dprintk(DBGLVL_VBI, "%s(port=%d) Released\n", __func__, port->nr); - - return ret; -} - -static int saa7164_vbi_start_streaming(struct saa7164_port *port) -{ - struct saa7164_dev *dev = port->dev; - int result, ret = 0; - - dprintk(DBGLVL_VBI, "%s(port=%d)\n", __func__, port->nr); - - port->done_first_interrupt = 0; - - /* allocate all of the PCIe DMA buffer resources on the fly, - * allowing switching between TS and PS payloads without - * requiring a complete driver reload. - */ - saa7164_vbi_buffers_alloc(port); - - /* Configure the encoder with any cache values */ -#if 0 - saa7164_api_set_encoder(port); - saa7164_api_get_encoder(port); -#endif - - /* Place the empty buffers on the hardware */ - saa7164_buffer_cfg_port(port); - - /* Negotiate format */ - if (saa7164_api_set_vbi_format(port) != SAA_OK) { - printk(KERN_ERR "%s() No supported VBI format\n", __func__); - ret = -EIO; - goto out; - } - - /* Acquire the hardware */ - result = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE); - if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { - printk(KERN_ERR "%s() acquire transition failed, res = 0x%x\n", - __func__, result); - - ret = -EIO; - goto out; - } else - dprintk(DBGLVL_VBI, "%s() Acquired\n", __func__); - - /* Pause the hardware */ - result = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE); - if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { - printk(KERN_ERR "%s() pause transition failed, res = 0x%x\n", - __func__, result); - - /* Stop the hardware, regardless */ - result = saa7164_vbi_stop_port(port); - if (result != SAA_OK) { - printk(KERN_ERR "%s() pause/forced stop transition " - "failed, res = 0x%x\n", __func__, result); - } - - ret = -EIO; - goto out; - } else - dprintk(DBGLVL_VBI, "%s() Paused\n", __func__); - - /* Start the hardware */ - result = saa7164_api_transition_port(port, SAA_DMASTATE_RUN); - if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { - printk(KERN_ERR "%s() run transition failed, result = 0x%x\n", - __func__, result); - - /* Stop the hardware, regardless */ - result = saa7164_vbi_acquire_port(port); - result = saa7164_vbi_stop_port(port); - if (result != SAA_OK) { - printk(KERN_ERR "%s() run/forced stop transition " - "failed, res = 0x%x\n", __func__, result); - } - - ret = -EIO; - } else - dprintk(DBGLVL_VBI, "%s() Running\n", __func__); - -out: - return ret; -} - -int saa7164_vbi_fmt(struct file *file, void *priv, struct v4l2_format *f) -{ - /* ntsc */ - f->fmt.vbi.samples_per_line = 1600; - f->fmt.vbi.samples_per_line = 1440; - f->fmt.vbi.sampling_rate = 27000000; - f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; - f->fmt.vbi.offset = 0; - f->fmt.vbi.flags = 0; - f->fmt.vbi.start[0] = 10; - f->fmt.vbi.count[0] = 18; - f->fmt.vbi.start[1] = 263 + 10 + 1; - f->fmt.vbi.count[1] = 18; - return 0; -} - -static int fops_open(struct file *file) -{ - struct saa7164_dev *dev; - struct saa7164_port *port; - struct saa7164_vbi_fh *fh; - - port = (struct saa7164_port *)video_get_drvdata(video_devdata(file)); - if (!port) - return -ENODEV; - - dev = port->dev; - - dprintk(DBGLVL_VBI, "%s()\n", __func__); - - /* allocate + initialize per filehandle data */ - fh = kzalloc(sizeof(*fh), GFP_KERNEL); - if (NULL == fh) - return -ENOMEM; - - file->private_data = fh; - fh->port = port; - - return 0; -} - -static int fops_release(struct file *file) -{ - struct saa7164_vbi_fh *fh = file->private_data; - struct saa7164_port *port = fh->port; - struct saa7164_dev *dev = port->dev; - - dprintk(DBGLVL_VBI, "%s()\n", __func__); - - /* Shut device down on last close */ - if (atomic_cmpxchg(&fh->v4l_reading, 1, 0) == 1) { - if (atomic_dec_return(&port->v4l_reader_count) == 0) { - /* stop vbi capture then cancel buffers */ - saa7164_vbi_stop_streaming(port); - } - } - - file->private_data = NULL; - kfree(fh); - - return 0; -} - -struct saa7164_user_buffer *saa7164_vbi_next_buf(struct saa7164_port *port) -{ - struct saa7164_user_buffer *ubuf = NULL; - struct saa7164_dev *dev = port->dev; - u32 crc; - - mutex_lock(&port->dmaqueue_lock); - if (!list_empty(&port->list_buf_used.list)) { - ubuf = list_first_entry(&port->list_buf_used.list, - struct saa7164_user_buffer, list); - - if (crc_checking) { - crc = crc32(0, ubuf->data, ubuf->actual_size); - if (crc != ubuf->crc) { - printk(KERN_ERR "%s() ubuf %p crc became invalid, was 0x%x became 0x%x\n", - __func__, - ubuf, ubuf->crc, crc); - } - } - - } - mutex_unlock(&port->dmaqueue_lock); - - dprintk(DBGLVL_VBI, "%s() returns %p\n", __func__, ubuf); - - return ubuf; -} - -static ssize_t fops_read(struct file *file, char __user *buffer, - size_t count, loff_t *pos) -{ - struct saa7164_vbi_fh *fh = file->private_data; - struct saa7164_port *port = fh->port; - struct saa7164_user_buffer *ubuf = NULL; - struct saa7164_dev *dev = port->dev; - int ret = 0; - int rem, cnt; - u8 *p; - - port->last_read_msecs_diff = port->last_read_msecs; - port->last_read_msecs = jiffies_to_msecs(jiffies); - port->last_read_msecs_diff = port->last_read_msecs - - port->last_read_msecs_diff; - - saa7164_histogram_update(&port->read_interval, - port->last_read_msecs_diff); - - if (*pos) { - printk(KERN_ERR "%s() ESPIPE\n", __func__); - return -ESPIPE; - } - - if (atomic_cmpxchg(&fh->v4l_reading, 0, 1) == 0) { - if (atomic_inc_return(&port->v4l_reader_count) == 1) { - - if (saa7164_vbi_initialize(port) < 0) { - printk(KERN_ERR "%s() EINVAL\n", __func__); - return -EINVAL; - } - - saa7164_vbi_start_streaming(port); - msleep(200); - } - } - - /* blocking wait for buffer */ - if ((file->f_flags & O_NONBLOCK) == 0) { - if (wait_event_interruptible(port->wait_read, - saa7164_vbi_next_buf(port))) { - printk(KERN_ERR "%s() ERESTARTSYS\n", __func__); - return -ERESTARTSYS; - } - } - - /* Pull the first buffer from the used list */ - ubuf = saa7164_vbi_next_buf(port); - - while ((count > 0) && ubuf) { - - /* set remaining bytes to copy */ - rem = ubuf->actual_size - ubuf->pos; - cnt = rem > count ? count : rem; - - p = ubuf->data + ubuf->pos; - - dprintk(DBGLVL_VBI, - "%s() count=%d cnt=%d rem=%d buf=%p buf->pos=%d\n", - __func__, (int)count, cnt, rem, ubuf, ubuf->pos); - - if (copy_to_user(buffer, p, cnt)) { - printk(KERN_ERR "%s() copy_to_user failed\n", __func__); - if (!ret) { - printk(KERN_ERR "%s() EFAULT\n", __func__); - ret = -EFAULT; - } - goto err; - } - - ubuf->pos += cnt; - count -= cnt; - buffer += cnt; - ret += cnt; - - if (ubuf->pos > ubuf->actual_size) - printk(KERN_ERR "read() pos > actual, huh?\n"); - - if (ubuf->pos == ubuf->actual_size) { - - /* finished with current buffer, take next buffer */ - - /* Requeue the buffer on the free list */ - ubuf->pos = 0; - - mutex_lock(&port->dmaqueue_lock); - list_move_tail(&ubuf->list, &port->list_buf_free.list); - mutex_unlock(&port->dmaqueue_lock); - - /* Dequeue next */ - if ((file->f_flags & O_NONBLOCK) == 0) { - if (wait_event_interruptible(port->wait_read, - saa7164_vbi_next_buf(port))) { - break; - } - } - ubuf = saa7164_vbi_next_buf(port); - } - } -err: - if (!ret && !ubuf) { - printk(KERN_ERR "%s() EAGAIN\n", __func__); - ret = -EAGAIN; - } - - return ret; -} - -static unsigned int fops_poll(struct file *file, poll_table *wait) -{ - struct saa7164_vbi_fh *fh = (struct saa7164_vbi_fh *)file->private_data; - struct saa7164_port *port = fh->port; - unsigned int mask = 0; - - port->last_poll_msecs_diff = port->last_poll_msecs; - port->last_poll_msecs = jiffies_to_msecs(jiffies); - port->last_poll_msecs_diff = port->last_poll_msecs - - port->last_poll_msecs_diff; - - saa7164_histogram_update(&port->poll_interval, - port->last_poll_msecs_diff); - - if (!video_is_registered(port->v4l_device)) - return -EIO; - - if (atomic_cmpxchg(&fh->v4l_reading, 0, 1) == 0) { - if (atomic_inc_return(&port->v4l_reader_count) == 1) { - if (saa7164_vbi_initialize(port) < 0) - return -EINVAL; - saa7164_vbi_start_streaming(port); - msleep(200); - } - } - - /* blocking wait for buffer */ - if ((file->f_flags & O_NONBLOCK) == 0) { - if (wait_event_interruptible(port->wait_read, - saa7164_vbi_next_buf(port))) { - return -ERESTARTSYS; - } - } - - /* Pull the first buffer from the used list */ - if (!list_empty(&port->list_buf_used.list)) - mask |= POLLIN | POLLRDNORM; - - return mask; -} -static const struct v4l2_file_operations vbi_fops = { - .owner = THIS_MODULE, - .open = fops_open, - .release = fops_release, - .read = fops_read, - .poll = fops_poll, - .unlocked_ioctl = video_ioctl2, -}; - -static const struct v4l2_ioctl_ops vbi_ioctl_ops = { - .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_g_tuner = vidioc_g_tuner, - .vidioc_s_tuner = vidioc_s_tuner, - .vidioc_g_frequency = vidioc_g_frequency, - .vidioc_s_frequency = vidioc_s_frequency, - .vidioc_s_ctrl = vidioc_s_ctrl, - .vidioc_g_ctrl = vidioc_g_ctrl, - .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_ext_ctrls = vidioc_g_ext_ctrls, - .vidioc_s_ext_ctrls = vidioc_s_ext_ctrls, - .vidioc_try_ext_ctrls = vidioc_try_ext_ctrls, - .vidioc_queryctrl = vidioc_queryctrl, -#if 0 - .vidioc_g_chip_ident = saa7164_g_chip_ident, -#endif -#ifdef CONFIG_VIDEO_ADV_DEBUG -#if 0 - .vidioc_g_register = saa7164_g_register, - .vidioc_s_register = saa7164_s_register, -#endif -#endif - .vidioc_g_fmt_vbi_cap = saa7164_vbi_fmt, - .vidioc_try_fmt_vbi_cap = saa7164_vbi_fmt, - .vidioc_s_fmt_vbi_cap = saa7164_vbi_fmt, -}; - -static struct video_device saa7164_vbi_template = { - .name = "saa7164", - .fops = &vbi_fops, - .ioctl_ops = &vbi_ioctl_ops, - .minor = -1, - .tvnorms = SAA7164_NORMS, - .current_norm = V4L2_STD_NTSC_M, -}; - -static struct video_device *saa7164_vbi_alloc( - struct saa7164_port *port, - struct pci_dev *pci, - struct video_device *template, - char *type) -{ - struct video_device *vfd; - struct saa7164_dev *dev = port->dev; - - dprintk(DBGLVL_VBI, "%s()\n", __func__); - - vfd = video_device_alloc(); - if (NULL == vfd) - return NULL; - - *vfd = *template; - snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", dev->name, - type, saa7164_boards[dev->board].name); - - vfd->parent = &pci->dev; - vfd->release = video_device_release; - return vfd; -} - -int saa7164_vbi_register(struct saa7164_port *port) -{ - struct saa7164_dev *dev = port->dev; - int result = -ENODEV; - - dprintk(DBGLVL_VBI, "%s()\n", __func__); - - if (port->type != SAA7164_MPEG_VBI) - BUG(); - - /* Sanity check that the PCI configuration space is active */ - if (port->hwcfg.BARLocation == 0) { - printk(KERN_ERR "%s() failed " - "(errno = %d), NO PCI configuration\n", - __func__, result); - result = -ENOMEM; - goto failed; - } - - /* Establish VBI defaults here */ - - /* Allocate and register the video device node */ - port->v4l_device = saa7164_vbi_alloc(port, - dev->pci, &saa7164_vbi_template, "vbi"); - - if (!port->v4l_device) { - printk(KERN_INFO "%s: can't allocate vbi device\n", - dev->name); - result = -ENOMEM; - goto failed; - } - - video_set_drvdata(port->v4l_device, port); - result = video_register_device(port->v4l_device, - VFL_TYPE_VBI, -1); - if (result < 0) { - printk(KERN_INFO "%s: can't register vbi device\n", - dev->name); - /* TODO: We're going to leak here if we don't dealloc - The buffers above. The unreg function can't deal wit it. - */ - goto failed; - } - - printk(KERN_INFO "%s: registered device vbi%d [vbi]\n", - dev->name, port->v4l_device->num); - - /* Configure the hardware defaults */ - - result = 0; -failed: - return result; -} - -void saa7164_vbi_unregister(struct saa7164_port *port) -{ - struct saa7164_dev *dev = port->dev; - - dprintk(DBGLVL_VBI, "%s(port=%d)\n", __func__, port->nr); - - if (port->type != SAA7164_MPEG_VBI) - BUG(); - - if (port->v4l_device) { - if (port->v4l_device->minor != -1) - video_unregister_device(port->v4l_device); - else - video_device_release(port->v4l_device); - - port->v4l_device = NULL; - } - -} |
