diff options
Diffstat (limited to 'drivers/media/video/em28xx/em28xx-video.c')
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-video.c | 851 |
1 files changed, 264 insertions, 587 deletions
diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c index 4ea1f1e0489..53527536481 100644 --- a/drivers/media/video/em28xx/em28xx-video.c +++ b/drivers/media/video/em28xx/em28xx-video.c @@ -39,6 +39,7 @@ #include "em28xx.h" #include <media/v4l2-common.h> #include <media/v4l2-ioctl.h> +#include <media/v4l2-chip-ident.h> #include <media/msp3400.h> #include <media/tuner.h> @@ -47,9 +48,8 @@ "Mauro Carvalho Chehab <mchehab@infradead.org>, " \ "Sascha Sommer <saschasommer@freenet.de>" -#define DRIVER_NAME "em28xx" #define DRIVER_DESC "Empia em28xx based USB video device driver" -#define EM28XX_VERSION_CODE KERNEL_VERSION(0, 1, 0) +#define EM28XX_VERSION_CODE KERNEL_VERSION(0, 1, 1) #define em28xx_videodbg(fmt, arg...) do {\ if (video_debug) \ @@ -72,19 +72,13 @@ MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); -static LIST_HEAD(em28xx_devlist); -static DEFINE_MUTEX(em28xx_devlist_mutex); - -static unsigned int card[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET }; static unsigned int video_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET }; static unsigned int vbi_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET }; static unsigned int radio_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET }; -module_param_array(card, int, NULL, 0444); 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(card, "card type"); MODULE_PARM_DESC(video_nr, "video device numbers"); MODULE_PARM_DESC(vbi_nr, "vbi device numbers"); MODULE_PARM_DESC(radio_nr, "radio device numbers"); @@ -93,8 +87,15 @@ static unsigned int video_debug; module_param(video_debug, int, 0644); MODULE_PARM_DESC(video_debug, "enable debug messages [video]"); -/* Bitmask marking allocated devices from 0 to EM28XX_MAXBOARDS */ -static unsigned long em28xx_devused; +/* supported video standards */ +static struct em28xx_fmt format[] = { + { + .name = "16bpp YUY2, 4:2:2, packed", + .fourcc = V4L2_PIX_FMT_YUYV, + .depth = 16, + .reg = EM28XX_OUTFMT_YUV422_Y0UY1V, + }, +}; /* supported controls */ /* Common to all boards */ @@ -120,8 +121,6 @@ static struct v4l2_queryctrl em28xx_qctrl[] = { } }; -static struct usb_driver em28xx_usb_driver; - /* ------------------------------------------------------------------ DMA and thread functions ------------------------------------------------------------------*/ @@ -386,16 +385,18 @@ buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size) struct em28xx *dev = fh->dev; struct v4l2_frequency f; - *size = 16 * fh->dev->width * fh->dev->height >> 3; + *size = (fh->dev->width * fh->dev->height * dev->format->depth + 7) >> 3; + if (0 == *count) *count = EM28XX_DEF_BUF; if (*count < EM28XX_MIN_BUF) *count = EM28XX_MIN_BUF; - /* Ask tuner to go to analog mode */ + /* Ask tuner to go to analog or radio mode */ memset(&f, 0, sizeof(f)); f.frequency = dev->ctl_freq; + f.type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, &f); @@ -438,9 +439,7 @@ buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, struct em28xx *dev = fh->dev; int rc = 0, urb_init = 0; - /* FIXME: It assumes depth = 16 */ - /* The only currently supported format is 16 bits/pixel */ - buf->vb.size = 16 * dev->width * dev->height >> 3; + buf->vb.size = (fh->dev->width * fh->dev->height * dev->format->depth + 7) >> 3; if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) return -EINVAL; @@ -508,56 +507,6 @@ static struct videobuf_queue_ops em28xx_video_qops = { /********************* v4l2 interface **************************************/ -/* - * em28xx_config() - * inits registers with sane defaults - */ -static int em28xx_config(struct em28xx *dev) -{ - int retval; - - /* Sets I2C speed to 100 KHz */ - if (!dev->is_em2800) { - retval = em28xx_write_regs_req(dev, 0x00, 0x06, "\x40", 1); - if (retval < 0) { - em28xx_errdev("%s: em28xx_write_regs_req failed! retval [%d]\n", - __func__, retval); - return retval; - } - } - - /* enable vbi capturing */ - -/* em28xx_write_regs_req(dev, 0x00, 0x0e, "\xC0", 1); audio register */ -/* em28xx_write_regs_req(dev, 0x00, 0x0f, "\x80", 1); clk register */ - em28xx_write_regs_req(dev, 0x00, 0x11, "\x51", 1); - - dev->mute = 1; /* maybe not the right place... */ - dev->volume = 0x1f; - - em28xx_outfmt_set_yuv422(dev); - em28xx_colorlevels_set_default(dev); - em28xx_compression_disable(dev); - - return 0; -} - -/* - * em28xx_config_i2c() - * configure i2c attached devices - */ -static void em28xx_config_i2c(struct em28xx *dev) -{ - struct v4l2_routing route; - int zero = 0; - - route.input = INPUT(dev->ctl_input)->vmux; - route.output = 0; - em28xx_i2c_call_clients(dev, VIDIOC_INT_RESET, &zero); - em28xx_i2c_call_clients(dev, VIDIOC_INT_S_VIDEO_ROUTING, &route); - em28xx_i2c_call_clients(dev, VIDIOC_STREAMON, NULL); -} - static void video_mux(struct em28xx *dev, int index) { struct v4l2_routing route; @@ -566,10 +515,14 @@ static void video_mux(struct em28xx *dev, int index) route.output = 0; dev->ctl_input = index; dev->ctl_ainput = INPUT(index)->amux; + dev->ctl_aoutput = INPUT(index)->aout; + + if (!dev->ctl_aoutput) + dev->ctl_aoutput = EM28XX_AOUT_MASTER; em28xx_i2c_call_clients(dev, VIDIOC_INT_S_VIDEO_ROUTING, &route); - if (dev->has_msp34xx) { + if (dev->board.has_msp34xx) { if (dev->i2s_speed) { em28xx_i2c_call_clients(dev, VIDIOC_INT_I2S_CLOCK_FREQ, &dev->i2s_speed); @@ -595,12 +548,10 @@ static int res_get(struct em28xx_fh *fh) return rc; if (dev->stream_on) - return -EINVAL; + return -EBUSY; - mutex_lock(&dev->lock); dev->stream_on = 1; fh->stream_on = 1; - mutex_unlock(&dev->lock); return rc; } @@ -613,10 +564,8 @@ static void res_free(struct em28xx_fh *fh) { struct em28xx *dev = fh->dev; - mutex_lock(&dev->lock); fh->stream_on = 0; dev->stream_on = 0; - mutex_unlock(&dev->lock); } /* @@ -703,8 +652,8 @@ static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, f->fmt.pix.width = dev->width; f->fmt.pix.height = dev->height; - f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV; - f->fmt.pix.bytesperline = dev->width * 2; + f->fmt.pix.pixelformat = dev->format->fourcc; + f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3; f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height; f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; @@ -716,6 +665,17 @@ static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, return 0; } +static struct em28xx_fmt *format_by_fourcc(unsigned int fourcc) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(format); i++) + if (format[i].fourcc == fourcc) + return &format[i]; + + return NULL; +} + static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { @@ -726,24 +686,30 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, unsigned int maxw = norm_maxw(dev); unsigned int maxh = norm_maxh(dev); unsigned int hscale, vscale; + struct em28xx_fmt *fmt; + + fmt = format_by_fourcc(f->fmt.pix.pixelformat); + if (!fmt) { + em28xx_videodbg("Fourcc format (%08x) invalid.\n", + f->fmt.pix.pixelformat); + return -EINVAL; + } /* width must even because of the YUYV format height must be even because of interlacing */ height &= 0xfffe; - width &= 0xfffe; + width &= 0xfffe; - if (height < 32) + if (unlikely(height < 32)) height = 32; - if (height > maxh) + if (unlikely(height > maxh)) height = maxh; - if (width < 48) + if (unlikely(width < 48)) width = 48; - if (width > maxw) + if (unlikely(width > maxw)) width = maxw; - mutex_lock(&dev->lock); - - if (dev->is_em2800) { + if (dev->board.is_em2800) { /* the em2800 can only scale down to 50% */ if (height % (maxh / 2)) height = maxh; @@ -766,13 +732,12 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, f->fmt.pix.width = width; f->fmt.pix.height = height; - f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV; - f->fmt.pix.bytesperline = width * 2; - f->fmt.pix.sizeimage = width * 2 * height; + f->fmt.pix.pixelformat = fmt->fourcc; + f->fmt.pix.bytesperline = (dev->width * fmt->depth + 7) >> 3; + f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height; f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; f->fmt.pix.field = V4L2_FIELD_INTERLACED; - mutex_unlock(&dev->lock); return 0; } @@ -782,14 +747,21 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, struct em28xx_fh *fh = priv; struct em28xx *dev = fh->dev; int rc; + struct em28xx_fmt *fmt; rc = check_dev(dev); if (rc < 0) return rc; + mutex_lock(&dev->lock); + vidioc_try_fmt_vid_cap(file, priv, f); - mutex_lock(&dev->lock); + fmt = format_by_fourcc(f->fmt.pix.pixelformat); + if (!fmt) { + rc = -EINVAL; + goto out; + } if (videobuf_queue_is_busy(&fh->vb_vidq)) { em28xx_errdev("%s queue busy\n", __func__); @@ -806,6 +778,7 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, /* set new image size */ dev->width = f->fmt.pix.width; dev->height = f->fmt.pix.height; + dev->format = fmt; get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale); em28xx_set_alternate(dev); @@ -831,15 +804,12 @@ static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id * norm) mutex_lock(&dev->lock); dev->norm = *norm; - mutex_unlock(&dev->lock); /* Adjusts width/height, if needed */ f.fmt.pix.width = dev->width; f.fmt.pix.height = dev->height; vidioc_try_fmt_vid_cap(file, priv, &f); - mutex_lock(&dev->lock); - /* set new image size */ dev->width = f.fmt.pix.width; dev->height = f.fmt.pix.height; @@ -928,20 +898,38 @@ static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) { struct em28xx_fh *fh = priv; struct em28xx *dev = fh->dev; - unsigned int index = a->index; - - if (a->index > 1) - return -EINVAL; - - index = dev->ctl_ainput; - if (index == 0) + switch (a->index) { + case EM28XX_AMUX_VIDEO: strcpy(a->name, "Television"); - else + break; + case EM28XX_AMUX_LINE_IN: strcpy(a->name, "Line In"); + break; + case EM28XX_AMUX_VIDEO2: + strcpy(a->name, "Television alt"); + break; + case EM28XX_AMUX_PHONE: + strcpy(a->name, "Phone"); + break; + case EM28XX_AMUX_MIC: + strcpy(a->name, "Mic"); + break; + case EM28XX_AMUX_CD: + strcpy(a->name, "CD"); + break; + case EM28XX_AMUX_AUX: + strcpy(a->name, "Aux"); + break; + case EM28XX_AMUX_PCM_OUT: + strcpy(a->name, "PCM"); + break; + default: + return -EINVAL; + } + a->index = dev->ctl_ainput; a->capability = V4L2_AUDCAP_STEREO; - a->index = index; return 0; } @@ -951,9 +939,15 @@ static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a) struct em28xx_fh *fh = priv; struct em28xx *dev = fh->dev; - if (a->index != dev->ctl_ainput) - return -EINVAL; + mutex_lock(&dev->lock); + + dev->ctl_ainput = INPUT(a->index)->amux; + dev->ctl_aoutput = INPUT(a->index)->aout; + if (!dev->ctl_aoutput) + dev->ctl_aoutput = EM28XX_AOUT_MASTER; + + mutex_unlock(&dev->lock); return 0; } @@ -974,7 +968,7 @@ static int vidioc_queryctrl(struct file *file, void *priv, qc->id = id; - if (!dev->has_msp34xx) { + if (!dev->board.has_msp34xx) { for (i = 0; i < ARRAY_SIZE(em28xx_qctrl); i++) { if (qc->id && qc->id == em28xx_qctrl[i].id) { memcpy(qc, &(em28xx_qctrl[i]), sizeof(*qc)); @@ -1002,17 +996,14 @@ static int vidioc_g_ctrl(struct file *file, void *priv, rc = check_dev(dev); if (rc < 0) return rc; - mutex_lock(&dev->lock); + rc = 0; - if (!dev->has_msp34xx) - rc = em28xx_get_ctrl(dev, ctrl); - else - rc = -EINVAL; + mutex_lock(&dev->lock); - if (rc == -EINVAL) { + if (dev->board.has_msp34xx) em28xx_i2c_call_clients(dev, VIDIOC_G_CTRL, ctrl); - rc = 0; - } + else + rc = em28xx_get_ctrl(dev, ctrl); mutex_unlock(&dev->lock); return rc; @@ -1032,7 +1023,7 @@ static int vidioc_s_ctrl(struct file *file, void *priv, mutex_lock(&dev->lock); - if (dev->has_msp34xx) + if (dev->board.has_msp34xx) em28xx_i2c_call_clients(dev, VIDIOC_S_CTRL, ctrl); else { rc = 1; @@ -1112,8 +1103,10 @@ static int vidioc_g_frequency(struct file *file, void *priv, struct em28xx_fh *fh = priv; struct em28xx *dev = fh->dev; + mutex_lock(&dev->lock); f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; f->frequency = dev->ctl_freq; + mutex_unlock(&dev->lock); return 0; } @@ -1143,6 +1136,7 @@ static int vidioc_s_frequency(struct file *file, void *priv, em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, f); mutex_unlock(&dev->lock); + return 0; } @@ -1159,6 +1153,21 @@ static int em28xx_reg_len(int reg) } } +static int vidioc_g_chip_ident(struct file *file, void *priv, + struct v4l2_chip_ident *chip) +{ + struct em28xx_fh *fh = priv; + struct em28xx *dev = fh->dev; + + chip->ident = V4L2_IDENT_NONE; + chip->revision = 0; + + em28xx_i2c_call_clients(dev, VIDIOC_G_CHIP_IDENT, chip); + + return 0; +} + + static int vidioc_g_register(struct file *file, void *priv, struct v4l2_register *reg) { @@ -1166,19 +1175,43 @@ static int vidioc_g_register(struct file *file, void *priv, struct em28xx *dev = fh->dev; int ret; - if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) + switch (reg->match_type) { + case V4L2_CHIP_MATCH_AC97: + mutex_lock(&dev->lock); + ret = em28xx_read_ac97(dev, reg->reg); + mutex_unlock(&dev->lock); + if (ret < 0) + return ret; + + reg->val = ret; + return 0; + case V4L2_CHIP_MATCH_I2C_DRIVER: + em28xx_i2c_call_clients(dev, VIDIOC_DBG_G_REGISTER, reg); + return 0; + case V4L2_CHIP_MATCH_I2C_ADDR: + /* Not supported yet */ return -EINVAL; + default: + if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) + return -EINVAL; + } + /* Match host */ if (em28xx_reg_len(reg->reg) == 1) { + mutex_lock(&dev->lock); ret = em28xx_read_reg(dev, reg->reg); + mutex_unlock(&dev->lock); + if (ret < 0) return ret; reg->val = ret; } else { __le64 val = 0; + mutex_lock(&dev->lock); ret = em28xx_read_reg_req_len(dev, USB_REQ_GET_STATUS, reg->reg, (char *)&val, 2); + mutex_unlock(&dev->lock); if (ret < 0) return ret; @@ -1194,11 +1227,35 @@ static int vidioc_s_register(struct file *file, void *priv, struct em28xx_fh *fh = priv; struct em28xx *dev = fh->dev; __le64 buf; + int rc; + switch (reg->match_type) { + case V4L2_CHIP_MATCH_AC97: + mutex_lock(&dev->lock); + rc = em28xx_write_ac97(dev, reg->reg, reg->val); + mutex_unlock(&dev->lock); + + return rc; + case V4L2_CHIP_MATCH_I2C_DRIVER: + em28xx_i2c_call_clients(dev, VIDIOC_DBG_S_REGISTER, reg); + return 0; + case V4L2_CHIP_MATCH_I2C_ADDR: + /* Not supported yet */ + return -EINVAL; + default: + if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) + return -EINVAL; + } + + /* Match host */ buf = cpu_to_le64(reg->val); - return em28xx_write_regs(dev, reg->reg, (char *)&buf, - em28xx_reg_len(reg->reg)); + mutex_lock(&dev->lock); + rc = em28xx_write_regs(dev, reg->reg, (char *)&buf, + em28xx_reg_len(reg->reg)); + mutex_unlock(&dev->lock); + + return rc; } #endif @@ -1235,10 +1292,15 @@ static int vidioc_streamon(struct file *file, void *priv, return rc; - if (unlikely(res_get(fh) < 0)) - return -EBUSY; + mutex_lock(&dev->lock); + rc = res_get(fh); + + if (likely(rc >= 0)) + rc = videobuf_streamon(&fh->vb_vidq); - return (videobuf_streamon(&fh->vb_vidq)); + mutex_unlock(&dev->lock); + + return rc; } static int vidioc_streamoff(struct file *file, void *priv, @@ -1257,9 +1319,13 @@ static int vidioc_streamoff(struct file *file, void *priv, if (type != fh->type) return -EINVAL; + mutex_lock(&dev->lock); + videobuf_streamoff(&fh->vb_vidq); res_free(fh); + mutex_unlock(&dev->lock); + return 0; } @@ -1271,7 +1337,7 @@ static int vidioc_querycap(struct file *file, void *priv, strlcpy(cap->driver, "em28xx", sizeof(cap->driver)); strlcpy(cap->card, em28xx_boards[dev->model].name, sizeof(cap->card)); - strlcpy(cap->bus_info, dev->udev->dev.bus_id, sizeof(cap->bus_info)); + strlcpy(cap->bus_info, dev_name(&dev->udev->dev), sizeof(cap->bus_info)); cap->version = EM28XX_VERSION_CODE; @@ -1288,15 +1354,13 @@ static int vidioc_querycap(struct file *file, void *priv, } static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_fmtdesc *fmtd) + struct v4l2_fmtdesc *f) { - if (fmtd->index != 0) + if (unlikely(f->index >= ARRAY_SIZE(format))) return -EINVAL; - fmtd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - strcpy(fmtd->description, "Packed YUY2"); - fmtd->pixelformat = V4L2_PIX_FMT_YUYV; - memset(fmtd->reserved, 0, sizeof(fmtd->reserved)); + strlcpy(f->description, format[f->index].name, sizeof(f->description)); + f->pixelformat = format[f->index].fourcc; return 0; } @@ -1424,7 +1488,7 @@ static int radio_querycap(struct file *file, void *priv, strlcpy(cap->driver, "em28xx", sizeof(cap->driver)); strlcpy(cap->card, em28xx_boards[dev->model].name, sizeof(cap->card)); - strlcpy(cap->bus_info, dev->udev->dev.bus_id, sizeof(cap->bus_info)); + strlcpy(cap->bus_info, dev_name(&dev->udev->dev), sizeof(cap->bus_info)); cap->version = EM28XX_VERSION_CODE; cap->capabilities = V4L2_CAP_TUNER; @@ -1442,7 +1506,10 @@ static int radio_g_tuner(struct file *file, void *priv, strcpy(t->name, "Radio"); t->type = V4L2_TUNER_RADIO; + mutex_lock(&dev->lock); em28xx_i2c_call_clients(dev, VIDIOC_G_TUNER, t); + mutex_unlock(&dev->lock); + return 0; } @@ -1474,7 +1541,9 @@ static int radio_s_tuner(struct file *file, void *priv, if (0 != t->index) return -EINVAL; + mutex_lock(&dev->lock); em28xx_i2c_call_clients(dev, VIDIOC_S_TUNER, t); + mutex_unlock(&dev->lock); return 0; } @@ -1516,28 +1585,13 @@ static int radio_queryctrl(struct file *file, void *priv, static int em28xx_v4l2_open(struct inode *inode, struct file *filp) { int minor = iminor(inode); - int errCode = 0, radio = 0; - struct em28xx *h, *dev = NULL; + int errCode = 0, radio; + struct em28xx *dev; + enum v4l2_buf_type fh_type; struct em28xx_fh *fh; - enum v4l2_buf_type fh_type = 0; - mutex_lock(&em28xx_devlist_mutex); - list_for_each_entry(h, &em28xx_devlist, devlist) { - if (h->vdev->minor == minor) { - dev = h; - fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - } - if (h->vbi_dev->minor == minor) { - dev = h; - fh_type = V4L2_BUF_TYPE_VBI_CAPTURE; - } - if (h->radio_dev && - h->radio_dev->minor == minor) { - radio = 1; - dev = h; - } - } - mutex_unlock(&em28xx_devlist_mutex); + dev = em28xx_get_device(inode, &fh_type, &radio); + if (NULL == dev) return -ENODEV; @@ -1571,7 +1625,7 @@ static int em28xx_v4l2_open(struct inode *inode, struct file *filp) /* Needed, since GPIO might have disabled power of some i2c device */ - em28xx_config_i2c(dev); + em28xx_wake_i2c(dev); } if (fh->radio) { @@ -1595,16 +1649,11 @@ static int em28xx_v4l2_open(struct inode *inode, struct file *filp) * unregisters the v4l2,i2c and usb devices * called when the device gets disconected or at module unload */ -static void em28xx_release_resources(struct em28xx *dev) +void em28xx_release_analog_resources(struct em28xx *dev) { /*FIXME: I2C IR should be disconnected */ - em28xx_info("V4L2 devices /dev/video%d and /dev/vbi%d deregistered\n", - dev->vdev->num, dev->vbi_dev->num); - list_del(&dev->devlist); - if (dev->sbutton_input_dev) - em28xx_deregister_snapshot_button(dev); if (dev->radio_dev) { if (-1 != dev->radio_dev->minor) video_unregister_device(dev->radio_dev); @@ -1613,6 +1662,8 @@ static void em28xx_release_resources(struct em28xx *dev) dev->radio_dev = NULL; } if (dev->vbi_dev) { + em28xx_info("V4L2 device /dev/vbi%d deregistered\n", + dev->vbi_dev->num); if (-1 != dev->vbi_dev->minor) video_unregister_device(dev->vbi_dev); else @@ -1620,17 +1671,14 @@ static void em28xx_release_resources(struct em28xx *dev) dev->vbi_dev = NULL; } if (dev->vdev) { + em28xx_info("V4L2 device /dev/video%d deregistered\n", + dev->vdev->num); if (-1 != dev->vdev->minor) video_unregister_device(dev->vdev); else video_device_release(dev->vdev); dev->vdev = NULL; } - em28xx_i2c_unregister(dev); - usb_put_dev(dev->udev); - - /* Mark device as unused */ - em28xx_devused &= ~(1<<dev->devno); } /* @@ -1647,11 +1695,10 @@ static int em28xx_v4l2_close(struct inode *inode, struct file *filp) em28xx_videodbg("users=%d\n", dev->users); + mutex_lock(&dev->lock); if (res_check(fh)) res_free(fh); - mutex_lock(&dev->lock); - if (dev->users == 1) { videobuf_stop(&fh->vb_vidq); videobuf_mmap_free(&fh->vb_vidq); @@ -1665,9 +1712,12 @@ static int em28xx_v4l2_close(struct inode *inode, struct file *filp) return 0; } + /* Save some power by putting tuner to sleep */ + em28xx_i2c_call_clients(dev, TUNER_SET_STANDBY, NULL); + /* do this before setting alternate! */ em28xx_uninit_isoc(dev); - em28xx_set_mode(dev, EM28XX_MODE_UNDEFINED); + em28xx_set_mode(dev, EM28XX_SUSPEND); /* set alternate 0 */ dev->alt = 0; @@ -1706,8 +1756,12 @@ em28xx_v4l2_read(struct file *filp, char __user *buf, size_t count, */ if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { - if (unlikely(res_get(fh))) - return -EBUSY; + mutex_lock(&dev->lock); + rc = res_get(fh); + mutex_unlock(&dev->lock); + + if (unlikely(rc < 0)) + return rc; return videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0, filp->f_flags & O_NONBLOCK); @@ -1729,7 +1783,11 @@ static unsigned int em28xx_v4l2_poll(struct file *filp, poll_table * wait) if (rc < 0) return rc; - if (unlikely(res_get(fh) < 0)) + mutex_lock(&dev->lock); + rc = res_get(fh); + mutex_unlock(&dev->lock); + + if (unlikely(rc < 0)) return POLLERR; if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type) @@ -1747,13 +1805,17 @@ static int em28xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma) struct em28xx *dev = fh->dev; int rc; - if (unlikely(res_get(fh) < 0)) - return -EBUSY; - rc = check_dev(dev); if (rc < 0) return rc; + mutex_lock(&dev->lock); + rc = res_get(fh); + mutex_unlock(&dev->lock); + + if (unlikely(rc < 0)) + return rc; + rc = videobuf_mmap_mapper(&fh->vb_vidq, vma); em28xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n", @@ -1810,6 +1872,7 @@ static const struct v4l2_ioctl_ops video_ioctl_ops = { #ifdef CONFIG_VIDEO_ADV_DEBUG .vidioc_g_register = vidioc_g_register, .vidioc_s_register = vidioc_s_register, + .vidioc_g_chip_ident = vidioc_g_chip_ident, #endif #ifdef CONFIG_VIDEO_V4L1_COMPAT .vidiocgmbuf = vidiocgmbuf, @@ -1865,44 +1928,6 @@ static struct video_device em28xx_radio_template = { /******************************** usb interface ******************************/ -static LIST_HEAD(em28xx_extension_devlist); -static DEFINE_MUTEX(em28xx_extension_devlist_lock); - -int em28xx_register_extension(struct em28xx_ops *ops) -{ - struct em28xx *dev = NULL; - - mutex_lock(&em28xx_devlist_mutex); - mutex_lock(&em28xx_extension_devlist_lock); - list_add_tail(&ops->next, &em28xx_extension_devlist); - list_for_each_entry(dev, &em28xx_devlist, devlist) { - if (dev) - ops->init(dev); - } - printk(KERN_INFO "Em28xx: Initialized (%s) extension\n", ops->name); - mutex_unlock(&em28xx_extension_devlist_lock); - mutex_unlock(&em28xx_devlist_mutex); - return 0; -} -EXPORT_SYMBOL(em28xx_register_extension); - -void em28xx_unregister_extension(struct em28xx_ops *ops) -{ - struct em28xx *dev = NULL; - - mutex_lock(&em28xx_devlist_mutex); - list_for_each_entry(dev, &em28xx_devlist, devlist) { - if (dev) - ops->fini(dev); - } - - mutex_lock(&em28xx_extension_devlist_lock); - printk(KERN_INFO "Em28xx: Removed (%s) extension\n", ops->name); - list_del(&ops->next); - mutex_unlock(&em28xx_extension_devlist_lock); - mutex_unlock(&em28xx_devlist_mutex); -} -EXPORT_SYMBOL(em28xx_unregister_extension); static struct video_device *em28xx_vdev_init(struct em28xx *dev, const struct video_device *template, @@ -1925,11 +1950,43 @@ static struct video_device *em28xx_vdev_init(struct em28xx *dev, return vfd; } - -static int register_analog_devices(struct em28xx *dev) +int em28xx_register_analog_devices(struct em28xx *dev) { int ret; + printk(KERN_INFO "%s: v4l2 driver version %d.%d.%d\n", + dev->name, + (EM28XX_VERSION_CODE >> 16) & 0xff, + (EM28XX_VERSION_CODE >> 8) & 0xff, EM28XX_VERSION_CODE & 0xff); + + /* Analog specific initialization */ + dev->format = &format[0]; + video_mux(dev, 0); + + /* enable vbi capturing */ + +/* em28xx_write_reg(dev, EM28XX_R0E_AUDIOSRC, 0xc0); audio register */ +/* em28xx_write_reg(dev, EM28XX_R0F_XCLK, 0x80); clk register */ + em28xx_write_reg(dev, EM28XX_R11_VINCTRL, 0x51); + + dev->mute = 1; /* maybe not the right place... */ + dev->volume = 0x1f; + + em28xx_set_outfmt(dev); + em28xx_colorlevels_set_default(dev); + em28xx_compression_disable(dev); + + /* set default norm */ + dev->norm = em28xx_video_template.current_norm; + dev->width = norm_maxw(dev); + dev->height = norm_maxh(dev); + dev->interlaced = EM28XX_INTERLACED_DEFAULT; + dev->hscale = 0; + dev->vscale = 0; + + /* FIXME: This is a very bad hack! Not all devices have TV on input 2 */ + dev->ctl_input = 2; + /* allocate and fill video video_device struct */ dev->vdev = em28xx_vdev_init(dev, &em28xx_video_template, "video"); if (!dev->vdev) { @@ -1978,383 +2035,3 @@ static int register_analog_devices(struct em28xx *dev) return 0; } - - -/* - * em28xx_init_dev() - * allocates and inits the device structs, registers i2c bus and v4l device - */ -static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev, - int minor) -{ - struct em28xx_ops *ops = NULL; - struct em28xx *dev = *devhandle; - int retval = -ENOMEM; - int errCode; - unsigned int maxh, maxw; - - dev->udev = udev; - mutex_init(&dev->lock); - mutex_init(&dev->ctrl_urb_lock); - spin_lock_init(&dev->slock); - init_waitqueue_head(&dev->open); - init_waitqueue_head(&dev->wait_frame); - init_waitqueue_head(&dev->wait_stream); - - dev->em28xx_write_regs = em28xx_write_regs; - dev->em28xx_read_reg = em28xx_read_reg; - dev->em28xx_read_reg_req_len = em28xx_read_reg_req_len; - dev->em28xx_write_regs_req = em28xx_write_regs_req; - dev->em28xx_read_reg_req = em28xx_read_reg_req; - dev->is_em2800 = em28xx_boards[dev->model].is_em2800; - - em28xx_pre_card_setup(dev); - - errCode = em28xx_config(dev); - if (errCode) { - em28xx_errdev("error configuring device\n"); - return -ENOMEM; - } - - /* register i2c bus */ - errCode = em28xx_i2c_register(dev); - if (errCode < 0) { - em28xx_errdev("%s: em28xx_i2c_register - errCode [%d]!\n", - __func__, errCode); - return errCode; - } - - /* Do board specific init and eeprom reading */ - em28xx_card_setup(dev); - - /* Configure audio */ - errCode = em28xx_audio_analog_set(dev); - if (errCode < 0) { - em28xx_errdev("%s: em28xx_audio_analog_set - errCode [%d]!\n", - __func__, errCode); - return errCode; - } - - /* configure the device */ - em28xx_config_i2c(dev); - - /* set default norm */ - dev->norm = em28xx_video_template.current_norm; - - maxw = norm_maxw(dev); - maxh = norm_maxh(dev); - - /* set default image size */ - dev->width = maxw; - dev->height = maxh; - dev->interlaced = EM28XX_INTERLACED_DEFAULT; - dev->hscale = 0; - dev->vscale = 0; - dev->ctl_input = 2; - - errCode = em28xx_config(dev); - if (errCode < 0) { - em28xx_errdev("%s: em28xx_config - errCode [%d]!\n", - __func__, errCode); - return errCode; - } - - /* init video dma queues */ - INIT_LIST_HEAD(&dev->vidq.active); - INIT_LIST_HEAD(&dev->vidq.queued); - - - if (dev->has_msp34xx) { - /* Send a reset to other chips via gpio */ - errCode = em28xx_write_regs_req(dev, 0x00, 0x08, "\xf7", 1); - if (errCode < 0) { - em28xx_errdev("%s: em28xx_write_regs_req - msp34xx(1) failed! errCode [%d]\n", - __func__, errCode); - return errCode; - } - msleep(3); - - errCode = em28xx_write_regs_req(dev, 0x00, 0x08, "\xff", 1); - if (errCode < 0) { - em28xx_errdev("%s: em28xx_write_regs_req - msp34xx(2) failed! errCode [%d]\n", - __func__, errCode); - return errCode; - } - msleep(3); - } - - video_mux(dev, 0); - - mutex_lock(&em28xx_devlist_mutex); - list_add_tail(&dev->devlist, &em28xx_devlist); - retval = register_analog_devices(dev); - if (retval < 0) { - em28xx_release_resources(dev); - mutex_unlock(&em28xx_devlist_mutex); - goto fail_reg_devices; - } - - mutex_lock(&em28xx_extension_devlist_lock); - if (!list_empty(&em28xx_extension_devlist)) { - list_for_each_entry(ops, &em28xx_extension_devlist, next) { - if (ops->id) - ops->init(dev); - } - } - mutex_unlock(&em28xx_extension_devlist_lock); - mutex_unlock(&em28xx_devlist_mutex); - - return 0; - -fail_reg_devices: - mutex_unlock(&dev->lock); - return retval; -} - -#if defined(CONFIG_MODULES) && defined(MODULE) -static void request_module_async(struct work_struct *work) -{ - struct em28xx *dev = container_of(work, - struct em28xx, request_module_wk); - - if (dev->has_audio_class) - request_module("snd-usb-audio"); - else - request_module("em28xx-alsa"); - - if (dev->has_dvb) - request_module("em28xx-dvb"); -} - -static void request_modules(struct em28xx *dev) -{ - INIT_WORK(&dev->request_module_wk, request_module_async); - schedule_work(&dev->request_module_wk); -} -#else -#define request_modules(dev) -#endif /* CONFIG_MODULES */ - -/* - * em28xx_usb_probe() - * checks for supported devices - */ -static int em28xx_usb_probe(struct usb_interface *interface, - const struct usb_device_id *id) -{ - const struct usb_endpoint_descriptor *endpoint; - struct usb_device *udev; - struct usb_interface *uif; - struct em28xx *dev = NULL; - int retval = -ENODEV; - int i, nr, ifnum; - - udev = usb_get_dev(interface_to_usbdev(interface)); - ifnum = interface->altsetting[0].desc.bInterfaceNumber; - - /* Check to see next free device and mark as used */ - nr = find_first_zero_bit(&em28xx_devused, EM28XX_MAXBOARDS); - em28xx_devused |= 1<<nr; - - /* Don't register audio interfaces */ - if (interface->altsetting[0].desc.bInterfaceClass == USB_CLASS_AUDIO) { - em28xx_err(DRIVER_NAME " audio device (%04x:%04x): interface %i, class %i\n", - udev->descriptor.idVendor, - udev->descriptor.idProduct, - ifnum, - interface->altsetting[0].desc.bInterfaceClass); - - em28xx_devused &= ~(1<<nr); - return -ENODEV; - } - - em28xx_err(DRIVER_NAME " new video device (%04x:%04x): interface %i, class %i\n", - udev->descriptor.idVendor, - udev->descriptor.idProduct, - ifnum, - interface->altsetting[0].desc.bInterfaceClass); - - endpoint = &interface->cur_altsetting->endpoint[1].desc; - - /* check if the device has the iso in endpoint at the correct place */ - if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != - USB_ENDPOINT_XFER_ISOC) { - em28xx_err(DRIVER_NAME " probing error: endpoint is non-ISO endpoint!\n"); - em28xx_devused &= ~(1<<nr); - return -ENODEV; - } - if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) { - em28xx_err(DRIVER_NAME " probing error: endpoint is ISO OUT endpoint!\n"); - em28xx_devused &= ~(1<<nr); - return -ENODEV; - } - - if (nr >= EM28XX_MAXBOARDS) { - printk(DRIVER_NAME ": Supports only %i em28xx boards.\n", - EM28XX_MAXBOARDS); - em28xx_devused &= ~(1<<nr); - return -ENOMEM; - } - - /* allocate memory for our device state and initialize it */ - dev = kzalloc(sizeof(*dev), GFP_KERNEL); - if (dev == NULL) { - em28xx_err(DRIVER_NAME ": out of memory!\n"); - em28xx_devused &= ~(1<<nr); - return -ENOMEM; - } - - snprintf(dev->name, 29, "em28xx #%d", nr); - dev->devno = nr; - dev->model = id->driver_info; - dev->alt = -1; - - /* Checks if audio is provided by some interface */ - for (i = 0; i < udev->config->desc.bNumInterfaces; i++) { - uif = udev->config->interface[i]; - if (uif->altsetting[0].desc.bInterfaceClass == USB_CLASS_AUDIO) { - dev->has_audio_class = 1; - break; - } - } - - printk(KERN_INFO DRIVER_NAME " %s usb audio class\n", - dev->has_audio_class ? "Has" : "Doesn't have"); - - /* compute alternate max packet sizes */ - uif = udev->actconfig->interface[0]; - - dev->num_alt = uif->num_altsetting; - em28xx_info("Alternate settings: %i\n", dev->num_alt); -/* dev->alt_max_pkt_size = kmalloc(sizeof(*dev->alt_max_pkt_size)* */ - dev->alt_max_pkt_size = kmalloc(32 * dev->num_alt, GFP_KERNEL); - - if (dev->alt_max_pkt_size == NULL) { - em28xx_errdev("out of memory!\n"); - em28xx_devused &= ~(1<<nr); - kfree(dev); - return -ENOMEM; - } - - for (i = 0; i < dev->num_alt ; i++) { - u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc. - wMaxPacketSize); - dev->alt_max_pkt_size[i] = - (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); - em28xx_info("Alternate setting %i, max size= %i\n", i, - dev->alt_max_pkt_size[i]); - } - - if ((card[nr] >= 0) && (card[nr] < em28xx_bcount)) - dev->model = card[nr]; - - /* allocate device struct */ - retval = em28xx_init_dev(&dev, udev, nr); - if (retval) { - em28xx_devused &= ~(1<<dev->devno); - kfree(dev); - - return retval; - } - - em28xx_info("Found %s\n", em28xx_boards[dev->model].name); - - /* save our data pointer in this interface device */ - usb_set_intfdata(interface, dev); - - request_modules(dev); - - return 0; -} - -/* - * em28xx_usb_disconnect() - * called when the device gets diconencted - * video device will be unregistered on v4l2_close in case it is still open - */ -static void em28xx_usb_disconnect(struct usb_interface *interface) -{ - struct em28xx *dev; - struct em28xx_ops *ops = NULL; - - dev = usb_get_intfdata(interface); - usb_set_intfdata(interface, NULL); - - if (!dev) - return; - - em28xx_info("disconnecting %s\n", dev->vdev->name); - - /* wait until all current v4l2 io is finished then deallocate - resources */ - mutex_lock(&dev->lock); - - wake_up_interruptible_all(&dev->open); - - if (dev->users) { - em28xx_warn - ("device /dev/video%d is open! Deregistration and memory " - "deallocation are deferred on close.\n", - dev->vdev->num); - - dev->state |= DEV_MISCONFIGURED; - em28xx_uninit_isoc(dev); - dev->state |= DEV_DISCONNECTED; - wake_up_interruptible(&dev->wait_frame); - wake_up_interruptible(&dev->wait_stream); - } else { - dev->state |= DEV_DISCONNECTED; - em28xx_release_resources(dev); - } - mutex_unlock(&dev->lock); - - mutex_lock(&em28xx_extension_devlist_lock); - if (!list_empty(&em28xx_extension_devlist)) { - list_for_each_entry(ops, &em28xx_extension_devlist, next) { - ops->fini(dev); - } - } - mutex_unlock(&em28xx_extension_devlist_lock); - - if (!dev->users) { - kfree(dev->alt_max_pkt_size); - kfree(dev); - } -} - -static struct usb_driver em28xx_usb_driver = { - .name = "em28xx", - .probe = em28xx_usb_probe, - .disconnect = em28xx_usb_disconnect, - .id_table = em28xx_id_table, -}; - -static int __init em28xx_module_init(void) -{ - int result; - - printk(KERN_INFO DRIVER_NAME " v4l2 driver version %d.%d.%d loaded\n", - (EM28XX_VERSION_CODE >> 16) & 0xff, - (EM28XX_VERSION_CODE >> 8) & 0xff, EM28XX_VERSION_CODE & 0xff); -#ifdef SNAPSHOT - printk(KERN_INFO DRIVER_NAME " snapshot date %04d-%02d-%02d\n", - SNAPSHOT / 10000, (SNAPSHOT / 100) % 100, SNAPSHOT % 100); -#endif - - /* register this driver with the USB subsystem */ - result = usb_register(&em28xx_usb_driver); - if (result) - em28xx_err(DRIVER_NAME - " usb_register failed. Error number %d.\n", result); - - return result; -} - -static void __exit em28xx_module_exit(void) -{ - /* deregister this driver with the USB subsystem */ - usb_deregister(&em28xx_usb_driver); -} - -module_init(em28xx_module_init); -module_exit(em28xx_module_exit); |