diff options
Diffstat (limited to 'drivers/media/usb/em28xx/em28xx-video.c')
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx-video.c | 652 |
1 files changed, 593 insertions, 59 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c index dd19c9ff76e0..c3c928937dcd 100644 --- a/drivers/media/usb/em28xx/em28xx-video.c +++ b/drivers/media/usb/em28xx/em28xx-video.c @@ -38,9 +38,11 @@ #include <linux/slab.h> #include "em28xx.h" +#include "em28xx-v4l.h" #include <media/v4l2-common.h> #include <media/v4l2-ioctl.h> #include <media/v4l2-event.h> +#include <media/v4l2-clk.h> #include <media/msp3400.h> #include <media/tuner.h> @@ -49,19 +51,23 @@ "Mauro Carvalho Chehab <mchehab@infradead.org>, " \ "Sascha Sommer <saschasommer@freenet.de>" -#define DRIVER_DESC "Empia em28xx based USB video device driver" +static unsigned int isoc_debug; +module_param(isoc_debug, int, 0644); +MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); + +static unsigned int disable_vbi; +module_param(disable_vbi, int, 0644); +MODULE_PARM_DESC(disable_vbi, "disable vbi support"); -#define EM28XX_VERSION "0.2.0" +static int alt; +module_param(alt, int, 0644); +MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint"); #define em28xx_videodbg(fmt, arg...) do {\ if (video_debug) \ printk(KERN_INFO "%s %s :"fmt, \ dev->name, __func__ , ##arg); } while (0) -static unsigned int isoc_debug; -module_param(isoc_debug, int, 0644); -MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); - #define em28xx_isocdbg(fmt, arg...) \ do {\ if (isoc_debug) { \ @@ -71,7 +77,7 @@ do {\ } while (0) MODULE_AUTHOR(DRIVER_AUTHOR); -MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_DESCRIPTION(DRIVER_DESC " - v4l2 interface"); MODULE_LICENSE("GPL"); MODULE_VERSION(EM28XX_VERSION); @@ -135,6 +141,257 @@ static struct em28xx_fmt format[] = { }, }; +static int em28xx_vbi_supported(struct em28xx *dev) +{ + /* Modprobe option to manually disable */ + if (disable_vbi == 1) + return 0; + + if (dev->board.is_webcam) + return 0; + + /* FIXME: check subdevices for VBI support */ + + if (dev->chip_id == CHIP_ID_EM2860 || + dev->chip_id == CHIP_ID_EM2883) + return 1; + + /* Version of em28xx that does not support VBI */ + return 0; +} + +/* + * em28xx_wake_i2c() + * configure i2c attached devices + */ +static void em28xx_wake_i2c(struct em28xx *dev) +{ + v4l2_device_call_all(&dev->v4l2_dev, 0, core, reset, 0); + v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, + INPUT(dev->ctl_input)->vmux, 0, 0); + v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); +} + +static int em28xx_colorlevels_set_default(struct em28xx *dev) +{ + em28xx_write_reg(dev, EM28XX_R20_YGAIN, CONTRAST_DEFAULT); + em28xx_write_reg(dev, EM28XX_R21_YOFFSET, BRIGHTNESS_DEFAULT); + em28xx_write_reg(dev, EM28XX_R22_UVGAIN, SATURATION_DEFAULT); + em28xx_write_reg(dev, EM28XX_R23_UOFFSET, BLUE_BALANCE_DEFAULT); + em28xx_write_reg(dev, EM28XX_R24_VOFFSET, RED_BALANCE_DEFAULT); + em28xx_write_reg(dev, EM28XX_R25_SHARPNESS, SHARPNESS_DEFAULT); + + em28xx_write_reg(dev, EM28XX_R14_GAMMA, 0x20); + em28xx_write_reg(dev, EM28XX_R15_RGAIN, 0x20); + em28xx_write_reg(dev, EM28XX_R16_GGAIN, 0x20); + em28xx_write_reg(dev, EM28XX_R17_BGAIN, 0x20); + em28xx_write_reg(dev, EM28XX_R18_ROFFSET, 0x00); + em28xx_write_reg(dev, EM28XX_R19_GOFFSET, 0x00); + return em28xx_write_reg(dev, EM28XX_R1A_BOFFSET, 0x00); +} + +static int em28xx_set_outfmt(struct em28xx *dev) +{ + int ret; + u8 fmt, vinctrl; + + fmt = dev->format->reg; + if (!dev->is_em25xx) + fmt |= 0x20; + /* + * NOTE: it's not clear if this is really needed ! + * The datasheets say bit 5 is a reserved bit and devices seem to work + * fine without it. But the Windows driver sets it for em2710/50+em28xx + * devices and we've always been setting it, too. + * + * em2765 (em25xx, em276x/7x/8x) devices do NOT work with this bit set, + * it's likely used for an additional (compressed ?) format there. + */ + ret = em28xx_write_reg(dev, EM28XX_R27_OUTFMT, fmt); + if (ret < 0) + return ret; + + ret = em28xx_write_reg(dev, EM28XX_R10_VINMODE, dev->vinmode); + if (ret < 0) + return ret; + + vinctrl = dev->vinctl; + if (em28xx_vbi_supported(dev) == 1) { + vinctrl |= EM28XX_VINCTRL_VBI_RAW; + em28xx_write_reg(dev, EM28XX_R34_VBI_START_H, 0x00); + em28xx_write_reg(dev, EM28XX_R36_VBI_WIDTH, dev->vbi_width/4); + em28xx_write_reg(dev, EM28XX_R37_VBI_HEIGHT, dev->vbi_height); + if (dev->norm & V4L2_STD_525_60) { + /* NTSC */ + em28xx_write_reg(dev, EM28XX_R35_VBI_START_V, 0x09); + } else if (dev->norm & V4L2_STD_625_50) { + /* PAL */ + em28xx_write_reg(dev, EM28XX_R35_VBI_START_V, 0x07); + } + } + + return em28xx_write_reg(dev, EM28XX_R11_VINCTRL, vinctrl); +} + +static int em28xx_accumulator_set(struct em28xx *dev, u8 xmin, u8 xmax, + u8 ymin, u8 ymax) +{ + em28xx_videodbg("em28xx Scale: (%d,%d)-(%d,%d)\n", + xmin, ymin, xmax, ymax); + + em28xx_write_regs(dev, EM28XX_R28_XMIN, &xmin, 1); + em28xx_write_regs(dev, EM28XX_R29_XMAX, &xmax, 1); + em28xx_write_regs(dev, EM28XX_R2A_YMIN, &ymin, 1); + return em28xx_write_regs(dev, EM28XX_R2B_YMAX, &ymax, 1); +} + +static void em28xx_capture_area_set(struct em28xx *dev, u8 hstart, u8 vstart, + u16 width, u16 height) +{ + u8 cwidth = width >> 2; + u8 cheight = height >> 2; + u8 overflow = (height >> 9 & 0x02) | (width >> 10 & 0x01); + /* NOTE: size limit: 2047x1023 = 2MPix */ + + em28xx_videodbg("capture area set to (%d,%d): %dx%d\n", + hstart, vstart, + ((overflow & 2) << 9 | cwidth << 2), + ((overflow & 1) << 10 | cheight << 2)); + + em28xx_write_regs(dev, EM28XX_R1C_HSTART, &hstart, 1); + em28xx_write_regs(dev, EM28XX_R1D_VSTART, &vstart, 1); + em28xx_write_regs(dev, EM28XX_R1E_CWIDTH, &cwidth, 1); + em28xx_write_regs(dev, EM28XX_R1F_CHEIGHT, &cheight, 1); + em28xx_write_regs(dev, EM28XX_R1B_OFLOW, &overflow, 1); + + /* FIXME: function/meaning of these registers ? */ + /* FIXME: align width+height to multiples of 4 ?! */ + if (dev->is_em25xx) { + em28xx_write_reg(dev, 0x34, width >> 4); + em28xx_write_reg(dev, 0x35, height >> 4); + } +} + +static int em28xx_scaler_set(struct em28xx *dev, u16 h, u16 v) +{ + u8 mode; + /* the em2800 scaler only supports scaling down to 50% */ + + if (dev->board.is_em2800) { + mode = (v ? 0x20 : 0x00) | (h ? 0x10 : 0x00); + } else { + u8 buf[2]; + + buf[0] = h; + buf[1] = h >> 8; + em28xx_write_regs(dev, EM28XX_R30_HSCALELOW, (char *)buf, 2); + + buf[0] = v; + buf[1] = v >> 8; + em28xx_write_regs(dev, EM28XX_R32_VSCALELOW, (char *)buf, 2); + /* it seems that both H and V scalers must be active + to work correctly */ + mode = (h || v) ? 0x30 : 0x00; + } + return em28xx_write_reg_bits(dev, EM28XX_R26_COMPR, mode, 0x30); +} + +/* FIXME: this only function read values from dev */ +static int em28xx_resolution_set(struct em28xx *dev) +{ + int width, height; + width = norm_maxw(dev); + height = norm_maxh(dev); + + /* Properly setup VBI */ + dev->vbi_width = 720; + if (dev->norm & V4L2_STD_525_60) + dev->vbi_height = 12; + else + dev->vbi_height = 18; + + em28xx_set_outfmt(dev); + + em28xx_accumulator_set(dev, 1, (width - 4) >> 2, 1, (height - 4) >> 2); + + /* If we don't set the start position to 2 in VBI mode, we end up + with line 20/21 being YUYV encoded instead of being in 8-bit + greyscale. The core of the issue is that line 21 (and line 23 for + PAL WSS) are inside of active video region, and as a result they + get the pixelformatting associated with that area. So by cropping + it out, we end up with the same format as the rest of the VBI + region */ + if (em28xx_vbi_supported(dev) == 1) + em28xx_capture_area_set(dev, 0, 2, width, height); + else + em28xx_capture_area_set(dev, 0, 0, width, height); + + return em28xx_scaler_set(dev, dev->hscale, dev->vscale); +} + +/* Set USB alternate setting for analog video */ +static int em28xx_set_alternate(struct em28xx *dev) +{ + int errCode; + int i; + unsigned int min_pkt_size = dev->width * 2 + 4; + + /* NOTE: for isoc transfers, only alt settings > 0 are allowed + bulk transfers seem to work only with alt=0 ! */ + dev->alt = 0; + if ((alt > 0) && (alt < dev->num_alt)) { + em28xx_videodbg("alternate forced to %d\n", dev->alt); + dev->alt = alt; + goto set_alt; + } + if (dev->analog_xfer_bulk) + goto set_alt; + + /* When image size is bigger than a certain value, + the frame size should be increased, otherwise, only + green screen will be received. + */ + if (dev->width * 2 * dev->height > 720 * 240 * 2) + min_pkt_size *= 2; + + for (i = 0; i < dev->num_alt; i++) { + /* stop when the selected alt setting offers enough bandwidth */ + if (dev->alt_max_pkt_size_isoc[i] >= min_pkt_size) { + dev->alt = i; + break; + /* otherwise make sure that we end up with the maximum bandwidth + because the min_pkt_size equation might be wrong... + */ + } else if (dev->alt_max_pkt_size_isoc[i] > + dev->alt_max_pkt_size_isoc[dev->alt]) + dev->alt = i; + } + +set_alt: + /* NOTE: for bulk transfers, we need to call usb_set_interface() + * even if the previous settings were the same. Otherwise streaming + * fails with all urbs having status = -EOVERFLOW ! */ + if (dev->analog_xfer_bulk) { + dev->max_pkt_size = 512; /* USB 2.0 spec */ + dev->packet_multiplier = EM28XX_BULK_PACKET_MULTIPLIER; + } else { /* isoc */ + em28xx_videodbg("minimum isoc packet size: %u (alt=%d)\n", + min_pkt_size, dev->alt); + dev->max_pkt_size = + dev->alt_max_pkt_size_isoc[dev->alt]; + dev->packet_multiplier = EM28XX_NUM_ISOC_PACKETS; + } + em28xx_videodbg("setting alternate %d with wMaxPacketSize=%u\n", + dev->alt, dev->max_pkt_size); + errCode = usb_set_interface(dev->udev, dev->ifnum, dev->alt); + if (errCode < 0) { + em28xx_errdev("cannot change alternate number to %d (error=%i)\n", + dev->alt, errCode); + return errCode; + } + return 0; +} + /* ------------------------------------------------------------------ DMA and thread functions ------------------------------------------------------------------*/ @@ -763,7 +1020,7 @@ static struct vb2_ops em28xx_video_qops = { .wait_finish = vb2_ops_wait_finish, }; -int em28xx_vb2_setup(struct em28xx *dev) +static int em28xx_vb2_setup(struct em28xx *dev) { int rc; struct vb2_queue *q; @@ -831,7 +1088,7 @@ static void video_mux(struct em28xx *dev, int index) em28xx_audio_analog_set(dev); } -void em28xx_ctrl_notify(struct v4l2_ctrl *ctrl, void *priv) +static void em28xx_ctrl_notify(struct v4l2_ctrl *ctrl, void *priv) { struct em28xx *dev = priv; @@ -890,7 +1147,7 @@ static int em28xx_s_ctrl(struct v4l2_ctrl *ctrl) return (ret < 0) ? ret : 0; } -const struct v4l2_ctrl_ops em28xx_ctrl_ops = { +static const struct v4l2_ctrl_ops em28xx_ctrl_ops = { .s_ctrl = em28xx_s_ctrl, }; @@ -1368,7 +1625,7 @@ static int vidioc_g_register(struct file *file, void *priv, reg->val = ret; } else { __le16 val = 0; - ret = em28xx_read_reg_req_len(dev, USB_REQ_GET_STATUS, + ret = dev->em28xx_read_reg_req_len(dev, USB_REQ_GET_STATUS, reg->reg, (char *)&val, 2); if (ret < 0) return ret; @@ -1570,6 +1827,10 @@ static int em28xx_v4l2_open(struct file *filp) case VFL_TYPE_VBI: fh_type = V4L2_BUF_TYPE_VBI_CAPTURE; break; + case VFL_TYPE_RADIO: + break; + default: + return -EINVAL; } em28xx_videodbg("open dev=%s type=%s users=%d\n", @@ -1590,15 +1851,17 @@ static int em28xx_v4l2_open(struct file *filp) fh->type = fh_type; filp->private_data = fh; - if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) { + if (dev->users == 0) { em28xx_set_mode(dev, EM28XX_ANALOG_MODE); - em28xx_resolution_set(dev); - /* Needed, since GPIO might have disabled power of - some i2c device + if (vdev->vfl_type != VFL_TYPE_RADIO) + em28xx_resolution_set(dev); + + /* + * Needed, since GPIO might have disabled power + * of some i2c devices */ em28xx_wake_i2c(dev); - } if (vdev->vfl_type == VFL_TYPE_RADIO) { @@ -1615,40 +1878,59 @@ static int em28xx_v4l2_open(struct file *filp) } /* - * em28xx_realease_resources() + * em28xx_v4l2_fini() * unregisters the v4l2,i2c and usb devices * called when the device gets disconected or at module unload */ -void em28xx_release_analog_resources(struct em28xx *dev) +static int em28xx_v4l2_fini(struct em28xx *dev) { + if (dev->is_audio_only) { + /* Shouldn't initialize IR for this interface */ + return 0; + } + + if (!dev->has_video) { + /* This device does not support the v4l2 extension */ + return 0; + } - /*FIXME: I2C IR should be disconnected */ + em28xx_info("Closing video extension"); + + mutex_lock(&dev->lock); + + v4l2_device_disconnect(&dev->v4l2_dev); + + em28xx_uninit_usb_xfer(dev, EM28XX_ANALOG_MODE); if (dev->radio_dev) { - if (video_is_registered(dev->radio_dev)) - video_unregister_device(dev->radio_dev); - else - video_device_release(dev->radio_dev); - dev->radio_dev = NULL; + em28xx_info("V4L2 device %s deregistered\n", + video_device_node_name(dev->radio_dev)); + video_unregister_device(dev->radio_dev); } if (dev->vbi_dev) { em28xx_info("V4L2 device %s deregistered\n", video_device_node_name(dev->vbi_dev)); - if (video_is_registered(dev->vbi_dev)) - video_unregister_device(dev->vbi_dev); - else - video_device_release(dev->vbi_dev); - dev->vbi_dev = NULL; + video_unregister_device(dev->vbi_dev); } if (dev->vdev) { em28xx_info("V4L2 device %s deregistered\n", video_device_node_name(dev->vdev)); - if (video_is_registered(dev->vdev)) - video_unregister_device(dev->vdev); - else - video_device_release(dev->vdev); - dev->vdev = NULL; + video_unregister_device(dev->vdev); } + + if (dev->clk) { + v4l2_clk_unregister_fixed(dev->clk); + dev->clk = NULL; + } + + v4l2_ctrl_handler_free(&dev->ctrl_handler); + v4l2_device_unregister(&dev->v4l2_dev); + + if (dev->users) + em28xx_warn("Device is open ! Memory deallocation is deferred on last close.\n"); + mutex_unlock(&dev->lock); + + return 0; } /* @@ -1668,14 +1950,10 @@ static int em28xx_v4l2_close(struct file *filp) mutex_lock(&dev->lock); if (dev->users == 1) { - /* the device is already disconnect, - free the remaining resources */ + /* free the remaining resources if device is disconnected */ if (dev->disconnected) { - em28xx_release_resources(dev); kfree(dev->alt_max_pkt_size_isoc); - mutex_unlock(&dev->lock); - kfree(dev); - return 0; + goto exit; } /* Save some power by putting tuner to sleep */ @@ -1694,11 +1972,29 @@ static int em28xx_v4l2_close(struct file *filp) } } +exit: dev->users--; mutex_unlock(&dev->lock); return 0; } +/* + * em28xx_videodevice_release() + * called when the last user of the video device exits and frees the memeory + */ +static void em28xx_videodevice_release(struct video_device *vdev) +{ + struct em28xx *dev = video_get_drvdata(vdev); + + video_device_release(vdev); + if (vdev == dev->vdev) + dev->vdev = NULL; + else if (vdev == dev->vbi_dev) + dev->vbi_dev = NULL; + else if (vdev == dev->radio_dev) + dev->radio_dev = NULL; +} + static const struct v4l2_file_operations em28xx_v4l_fops = { .owner = THIS_MODULE, .open = em28xx_v4l2_open, @@ -1753,11 +2049,10 @@ static const struct v4l2_ioctl_ops video_ioctl_ops = { }; static const struct video_device em28xx_video_template = { - .fops = &em28xx_v4l_fops, - .release = video_device_release_empty, - .ioctl_ops = &video_ioctl_ops, - - .tvnorms = V4L2_STD_ALL, + .fops = &em28xx_v4l_fops, + .ioctl_ops = &video_ioctl_ops, + .release = em28xx_videodevice_release, + .tvnorms = V4L2_STD_ALL, }; static const struct v4l2_file_operations radio_fops = { @@ -1783,14 +2078,30 @@ static const struct v4l2_ioctl_ops radio_ioctl_ops = { }; static struct video_device em28xx_radio_template = { - .name = "em28xx-radio", - .fops = &radio_fops, - .ioctl_ops = &radio_ioctl_ops, + .fops = &radio_fops, + .ioctl_ops = &radio_ioctl_ops, + .release = em28xx_videodevice_release, }; -/******************************** usb interface ******************************/ +/* I2C possible address to saa7115, tvp5150, msp3400, tvaudio */ +static unsigned short saa711x_addrs[] = { + 0x4a >> 1, 0x48 >> 1, /* SAA7111, SAA7111A and SAA7113 */ + 0x42 >> 1, 0x40 >> 1, /* SAA7114, SAA7115 and SAA7118 */ + I2C_CLIENT_END }; +static unsigned short tvp5150_addrs[] = { + 0xb8 >> 1, + 0xba >> 1, + I2C_CLIENT_END +}; +static unsigned short msp3400_addrs[] = { + 0x80 >> 1, + 0x88 >> 1, + I2C_CLIENT_END +}; + +/******************************** usb interface ******************************/ static struct video_device *em28xx_vdev_init(struct em28xx *dev, const struct video_device *template, @@ -1817,14 +2128,198 @@ static struct video_device *em28xx_vdev_init(struct em28xx *dev, return vfd; } -int em28xx_register_analog_devices(struct em28xx *dev) +static void em28xx_tuner_setup(struct em28xx *dev) +{ + struct tuner_setup tun_setup; + struct v4l2_frequency f; + + if (dev->tuner_type == TUNER_ABSENT) + return; + + memset(&tun_setup, 0, sizeof(tun_setup)); + + tun_setup.mode_mask = T_ANALOG_TV | T_RADIO; + tun_setup.tuner_callback = em28xx_tuner_callback; + + if (dev->board.radio.type) { + tun_setup.type = dev->board.radio.type; + tun_setup.addr = dev->board.radio_addr; + + v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_type_addr, &tun_setup); + } + + if ((dev->tuner_type != TUNER_ABSENT) && (dev->tuner_type)) { + tun_setup.type = dev->tuner_type; + tun_setup.addr = dev->tuner_addr; + + v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_type_addr, &tun_setup); + } + + if (dev->tda9887_conf) { + struct v4l2_priv_tun_config tda9887_cfg; + + tda9887_cfg.tuner = TUNER_TDA9887; + tda9887_cfg.priv = &dev->tda9887_conf; + + v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_config, &tda9887_cfg); + } + + if (dev->tuner_type == TUNER_XC2028) { + struct v4l2_priv_tun_config xc2028_cfg; + struct xc2028_ctrl ctl; + + memset(&xc2028_cfg, 0, sizeof(xc2028_cfg)); + memset(&ctl, 0, sizeof(ctl)); + + em28xx_setup_xc3028(dev, &ctl); + + xc2028_cfg.tuner = TUNER_XC2028; + xc2028_cfg.priv = &ctl; + + v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_config, &xc2028_cfg); + } + + /* configure tuner */ + f.tuner = 0; + f.type = V4L2_TUNER_ANALOG_TV; + f.frequency = 9076; /* just a magic number */ + dev->ctl_freq = f.frequency; + v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); +} + +static int em28xx_v4l2_init(struct em28xx *dev) { u8 val; int ret; unsigned int maxw; + struct v4l2_ctrl_handler *hdl = &dev->ctrl_handler; + + if (dev->is_audio_only) { + /* Shouldn't initialize IR for this interface */ + return 0; + } + + if (!dev->has_video) { + /* This device does not support the v4l2 extension */ + return 0; + } + + em28xx_info("Registering V4L2 extension\n"); + + mutex_lock(&dev->lock); + + ret = v4l2_device_register(&dev->udev->dev, &dev->v4l2_dev); + if (ret < 0) { + em28xx_errdev("Call to v4l2_device_register() failed!\n"); + goto err; + } + + v4l2_ctrl_handler_init(hdl, 8); + dev->v4l2_dev.ctrl_handler = hdl; + + /* + * Default format, used for tvp5150 or saa711x output formats + */ + dev->vinmode = 0x10; + dev->vinctl = EM28XX_VINCTRL_INTERLACED | + EM28XX_VINCTRL_CCIR656_ENABLE; + + /* request some modules */ + + if (dev->board.has_msp34xx) + v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], + "msp3400", 0, msp3400_addrs); + + if (dev->board.decoder == EM28XX_SAA711X) + v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], + "saa7115_auto", 0, saa711x_addrs); + + if (dev->board.decoder == EM28XX_TVP5150) + v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], + "tvp5150", 0, tvp5150_addrs); + + if (dev->board.adecoder == EM28XX_TVAUDIO) + v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], + "tvaudio", dev->board.tvaudio_addr, NULL); + + /* Initialize tuner and camera */ + + if (dev->board.tuner_type != TUNER_ABSENT) { + int has_demod = (dev->tda9887_conf & TDA9887_PRESENT); + + if (dev->board.radio.type) + v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], + "tuner", dev->board.radio_addr, NULL); + + if (has_demod) + v4l2_i2c_new_subdev(&dev->v4l2_dev, + &dev->i2c_adap[dev->def_i2c_bus], "tuner", + 0, v4l2_i2c_tuner_addrs(ADDRS_DEMOD)); + if (dev->tuner_addr == 0) { + enum v4l2_i2c_tuner_type type = + has_demod ? ADDRS_TV_WITH_DEMOD : ADDRS_TV; + struct v4l2_subdev *sd; + + sd = v4l2_i2c_new_subdev(&dev->v4l2_dev, + &dev->i2c_adap[dev->def_i2c_bus], "tuner", + 0, v4l2_i2c_tuner_addrs(type)); + + if (sd) + dev->tuner_addr = v4l2_i2c_subdev_addr(sd); + } else { + v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], + "tuner", dev->tuner_addr, NULL); + } + } + + em28xx_tuner_setup(dev); + em28xx_init_camera(dev); + + /* Configure audio */ + ret = em28xx_audio_setup(dev); + if (ret < 0) { + em28xx_errdev("%s: Error while setting audio - error [%d]!\n", + __func__, ret); + goto unregister_dev; + } + if (dev->audio_mode.ac97 != EM28XX_NO_AC97) { + v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops, + V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1); + v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops, + V4L2_CID_AUDIO_VOLUME, 0, 0x1f, 1, 0x1f); + } else { + /* install the em28xx notify callback */ + v4l2_ctrl_notify(v4l2_ctrl_find(hdl, V4L2_CID_AUDIO_MUTE), + em28xx_ctrl_notify, dev); + v4l2_ctrl_notify(v4l2_ctrl_find(hdl, V4L2_CID_AUDIO_VOLUME), + em28xx_ctrl_notify, dev); + } + + /* wake i2c devices */ + em28xx_wake_i2c(dev); + + /* init video dma queues */ + INIT_LIST_HEAD(&dev->vidq.active); + INIT_LIST_HEAD(&dev->vbiq.active); - printk(KERN_INFO "%s: v4l2 driver version %s\n", - dev->name, EM28XX_VERSION); + if (dev->board.has_msp34xx) { + /* Send a reset to other chips via gpio */ + ret = em28xx_write_reg(dev, EM2820_R08_GPIO_CTRL, 0xf7); + if (ret < 0) { + em28xx_errdev("%s: em28xx_write_reg - msp34xx(1) failed! error [%d]\n", + __func__, ret); + goto unregister_dev; + } + msleep(3); + + ret = em28xx_write_reg(dev, EM2820_R08_GPIO_CTRL, 0xff); + if (ret < 0) { + em28xx_errdev("%s: em28xx_write_reg - msp34xx(2) failed! error [%d]\n", + __func__, ret); + goto unregister_dev; + } + msleep(3); + } /* set default norm */ dev->norm = V4L2_STD_PAL; @@ -1888,14 +2383,16 @@ int em28xx_register_analog_devices(struct em28xx *dev) /* Reset image controls */ em28xx_colorlevels_set_default(dev); v4l2_ctrl_handler_setup(&dev->ctrl_handler); - if (dev->ctrl_handler.error) - return dev->ctrl_handler.error; + ret = dev->ctrl_handler.error; + if (ret) + goto unregister_dev; /* allocate and fill video video_device struct */ dev->vdev = em28xx_vdev_init(dev, &em28xx_video_template, "video"); if (!dev->vdev) { em28xx_errdev("cannot allocate video_device.\n"); - return -ENODEV; + ret = -ENODEV; + goto unregister_dev; } dev->vdev->queue = &dev->vb_vidq; dev->vdev->queue->lock = &dev->vb_queue_lock; @@ -1925,7 +2422,7 @@ int em28xx_register_analog_devices(struct em28xx *dev) if (ret) { em28xx_errdev("unable to register video device (error=%i).\n", ret); - return ret; + goto unregister_dev; } /* Allocate and fill vbi video_device struct */ @@ -1954,7 +2451,7 @@ int em28xx_register_analog_devices(struct em28xx *dev) vbi_nr[dev->devno]); if (ret < 0) { em28xx_errdev("unable to register vbi device\n"); - return ret; + goto unregister_dev; } } @@ -1963,13 +2460,14 @@ int em28xx_register_analog_devices(struct em28xx *dev) "radio"); if (!dev->radio_dev) { em28xx_errdev("cannot allocate video_device.\n"); - return -ENODEV; + ret = -ENODEV; + goto unregister_dev; } ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO, radio_nr[dev->devno]); if (ret < 0) { em28xx_errdev("can't register radio device\n"); - return ret; + goto unregister_dev; } em28xx_info("Registered radio device as %s\n", video_device_node_name(dev->radio_dev)); @@ -1982,5 +2480,41 @@ int em28xx_register_analog_devices(struct em28xx *dev) em28xx_info("V4L2 VBI device registered as %s\n", video_device_node_name(dev->vbi_dev)); + /* Save some power by putting tuner to sleep */ + v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0); + + /* initialize videobuf2 stuff */ + em28xx_vb2_setup(dev); + + em28xx_info("V4L2 extension successfully initialized\n"); + + mutex_unlock(&dev->lock); return 0; + +unregister_dev: + v4l2_ctrl_handler_free(&dev->ctrl_handler); + v4l2_device_unregister(&dev->v4l2_dev); +err: + mutex_unlock(&dev->lock); + return ret; +} + +static struct em28xx_ops v4l2_ops = { + .id = EM28XX_V4L2, + .name = "Em28xx v4l2 Extension", + .init = em28xx_v4l2_init, + .fini = em28xx_v4l2_fini, +}; + +static int __init em28xx_video_register(void) +{ + return em28xx_register_extension(&v4l2_ops); +} + +static void __exit em28xx_video_unregister(void) +{ + em28xx_unregister_extension(&v4l2_ops); } + +module_init(em28xx_video_register); +module_exit(em28xx_video_unregister); |