Now that dvb-only devices start to happen, it makes sense to split the analog part on a separate module. Signed-off-by: Mauro Carvalho Chehab <m.chehab@xxxxxxxxxxx> - This is a respin of https://patchwork.linuxtv.org/patch/17967/ v2: add a dev->has_video to signalize if the device has a video interface, and fix some locks Compile-tested only. --- drivers/media/usb/em28xx/Kconfig | 6 +- drivers/media/usb/em28xx/Makefile | 5 +- drivers/media/usb/em28xx/em28xx-cards.c | 94 ++-------------------- drivers/media/usb/em28xx/em28xx-core.c | 12 +++ drivers/media/usb/em28xx/em28xx-video.c | 133 ++++++++++++++++++++++++++++---- drivers/media/usb/em28xx/em28xx.h | 17 ++-- 6 files changed, 150 insertions(+), 117 deletions(-) diff --git a/drivers/media/usb/em28xx/Kconfig b/drivers/media/usb/em28xx/Kconfig index d6ba514d31eb..838fc9dbb747 100644 --- a/drivers/media/usb/em28xx/Kconfig +++ b/drivers/media/usb/em28xx/Kconfig @@ -1,8 +1,12 @@ config VIDEO_EM28XX - tristate "Empia EM28xx USB video capture support" + tristate "Empia EM28xx USB devices support" depends on VIDEO_DEV && I2C select VIDEO_TUNER select VIDEO_TVEEPROM + +config VIDEO_EM28XX_V4L2 + tristate "Empia EM28xx analog TV, video capture and/or webcam support" + depends on VIDEO_EM28XX && I2C select VIDEOBUF2_VMALLOC select VIDEO_SAA711X if MEDIA_SUBDRV_AUTOSELECT select VIDEO_TVP5150 if MEDIA_SUBDRV_AUTOSELECT diff --git a/drivers/media/usb/em28xx/Makefile b/drivers/media/usb/em28xx/Makefile index ad6d48557940..3e2b6b54817d 100644 --- a/drivers/media/usb/em28xx/Makefile +++ b/drivers/media/usb/em28xx/Makefile @@ -1,10 +1,11 @@ -em28xx-y += em28xx-video.o em28xx-i2c.o em28xx-cards.o -em28xx-y += em28xx-core.o em28xx-vbi.o em28xx-camera.o +em28xx-y += em28xx-core.o em28xx-i2c.o em28xx-cards.o +em28xx-v4l-objs := em28xx-video.o em28xx-vbi.o em28xx-camera.o em28xx-alsa-objs := em28xx-audio.o em28xx-rc-objs := em28xx-input.o obj-$(CONFIG_VIDEO_EM28XX) += em28xx.o +obj-$(CONFIG_VIDEO_EM28XX_V4L2) += em28xx-v4l.o obj-$(CONFIG_VIDEO_EM28XX_ALSA) += em28xx-alsa.o obj-$(CONFIG_VIDEO_EM28XX_DVB) += em28xx-dvb.o obj-$(CONFIG_VIDEO_EM28XX_RC) += em28xx-rc.o diff --git a/drivers/media/usb/em28xx/em28xx-cards.c b/drivers/media/usb/em28xx/em28xx-cards.c index 36853f16bf97..e1ffd9c6e79d 100644 --- a/drivers/media/usb/em28xx/em28xx-cards.c +++ b/drivers/media/usb/em28xx/em28xx-cards.c @@ -2106,7 +2106,7 @@ struct em28xx_board em28xx_boards[] = { }, /* 1b80:e1cc Delock 61959 * Empia EM2874B + Micronas DRX 3913KA2 + NXP TDA18271HDC2 - * mostly the same as MaxMedia UB-425-TC but different remote */ + * mostly the same as MaxMedia UB-425-TC but different remote */ [EM2874_BOARD_DELOCK_61959] = { .name = "Delock 61959", .tuner_type = TUNER_ABSENT, @@ -2955,11 +2955,12 @@ static void request_module_async(struct work_struct *work) em28xx_init_extension(dev); #if defined(CONFIG_MODULES) && defined(MODULE) + if (!dev->has_video) + request_module("em28xx-v4l2"); if (dev->has_audio_class) request_module("snd-usb-audio"); else if (dev->has_alsa_audio) request_module("em28xx-alsa"); - if (dev->board.has_dvb) request_module("em28xx-dvb"); if (dev->board.buttons || @@ -2988,8 +2989,6 @@ void em28xx_release_resources(struct em28xx *dev) { /*FIXME: I2C IR should be disconnected */ - em28xx_release_analog_resources(dev); - if (dev->def_i2c_bus) em28xx_i2c_unregister(dev, 1); em28xx_i2c_unregister(dev, 0); @@ -3014,7 +3013,6 @@ static int em28xx_init_dev(struct em28xx *dev, struct usb_device *udev, struct usb_interface *interface, int minor) { - struct v4l2_ctrl_handler *hdl = &dev->ctrl_handler; int retval; static const char *default_chip_name = "em28xx"; const char *chip_name = default_chip_name; @@ -3141,15 +3139,6 @@ static int em28xx_init_dev(struct em28xx *dev, struct usb_device *udev, } } - retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev); - if (retval < 0) { - em28xx_errdev("Call to v4l2_device_register() failed!\n"); - return retval; - } - - v4l2_ctrl_handler_init(hdl, 8); - dev->v4l2_dev.ctrl_handler = hdl; - rt_mutex_init(&dev->i2c_bus_lock); /* register i2c bus 0 */ @@ -3178,75 +3167,11 @@ static int em28xx_init_dev(struct em28xx *dev, struct usb_device *udev, } } - /* - * Default format, used for tvp5150 or saa711x output formats - */ - dev->vinmode = 0x10; - dev->vinctl = EM28XX_VINCTRL_INTERLACED | - EM28XX_VINCTRL_CCIR656_ENABLE; - /* Do board specific init and eeprom reading */ em28xx_card_setup(dev); - /* Configure audio */ - retval = em28xx_audio_setup(dev); - if (retval < 0) { - em28xx_errdev("%s: Error while setting audio - error [%d]!\n", - __func__, retval); - goto fail; - } - 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); - - if (dev->board.has_msp34xx) { - /* Send a reset to other chips via gpio */ - retval = em28xx_write_reg(dev, EM2820_R08_GPIO_CTRL, 0xf7); - if (retval < 0) { - em28xx_errdev("%s: em28xx_write_reg - " - "msp34xx(1) failed! error [%d]\n", - __func__, retval); - goto fail; - } - msleep(3); - - retval = em28xx_write_reg(dev, EM2820_R08_GPIO_CTRL, 0xff); - if (retval < 0) { - em28xx_errdev("%s: em28xx_write_reg - " - "msp34xx(2) failed! error [%d]\n", - __func__, retval); - goto fail; - } - msleep(3); - } - - retval = em28xx_register_analog_devices(dev); - if (retval < 0) { - goto fail; - } - - /* Save some power by putting tuner to sleep */ - v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0); - return 0; -fail: if (dev->def_i2c_bus) em28xx_i2c_unregister(dev, 1); em28xx_i2c_unregister(dev, 0); @@ -3458,6 +3383,7 @@ static int em28xx_usb_probe(struct usb_interface *interface, dev->alt = -1; dev->is_audio_only = has_audio && !(has_video || has_dvb); dev->has_alsa_audio = has_audio; + dev->has_video = has_video; dev->audio_ifnum = ifnum; /* Checks if audio is provided by some interface */ @@ -3495,15 +3421,11 @@ static int em28xx_usb_probe(struct usb_interface *interface, /* save our data pointer in this interface device */ usb_set_intfdata(interface, dev); - /* initialize videobuf2 stuff */ - em28xx_vb2_setup(dev); - /* allocate device struct */ mutex_init(&dev->lock); - mutex_lock(&dev->lock); retval = em28xx_init_dev(dev, udev, interface, nr); if (retval) { - goto unlock_and_free; + goto err_free; } if (usb_xfer_mode < 0) { @@ -3546,7 +3468,7 @@ static int em28xx_usb_probe(struct usb_interface *interface, if (retval) { printk(DRIVER_NAME ": Failed to pre-allocate USB transfer buffers for DVB.\n"); - goto unlock_and_free; + goto err_free; } } @@ -3555,13 +3477,9 @@ static int em28xx_usb_probe(struct usb_interface *interface, /* Should be the last thing to do, to avoid newer udev's to open the device before fully initializing it */ - mutex_unlock(&dev->lock); return 0; -unlock_and_free: - mutex_unlock(&dev->lock); - err_free: kfree(dev->alt_max_pkt_size_isoc); kfree(dev); diff --git a/drivers/media/usb/em28xx/em28xx-core.c b/drivers/media/usb/em28xx/em28xx-core.c index f6076a512e8f..0f61532d2612 100644 --- a/drivers/media/usb/em28xx/em28xx-core.c +++ b/drivers/media/usb/em28xx/em28xx-core.c @@ -33,6 +33,18 @@ #include "em28xx.h" +#define DRIVER_AUTHOR "Ludovico Cavedon <cavedon@xxxxxxxx>, " \ + "Markus Rechberger <mrechberger@xxxxxxxxx>, " \ + "Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxx>, " \ + "Sascha Sommer <saschasommer@xxxxxxxxxx>" + +#define DRIVER_DESC "Empia em28xx based USB core driver" + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); +MODULE_VERSION(EM28XX_VERSION); + /* #define ENABLE_DEBUG_ISOC_FRAMES */ static unsigned int core_debug; diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c index dd19c9ff76e0..b20e4e7116d3 100644 --- a/drivers/media/usb/em28xx/em28xx-video.c +++ b/drivers/media/usb/em28xx/em28xx-video.c @@ -51,8 +51,6 @@ #define DRIVER_DESC "Empia em28xx based USB video device driver" -#define EM28XX_VERSION "0.2.0" - #define em28xx_videodbg(fmt, arg...) do {\ if (video_debug) \ printk(KERN_INFO "%s %s :"fmt, \ @@ -763,7 +761,7 @@ 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 +829,7 @@ 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; @@ -1615,11 +1613,11 @@ 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) { /*FIXME: I2C IR should be disconnected */ @@ -1649,6 +1647,8 @@ void em28xx_release_analog_resources(struct em28xx *dev) video_device_release(dev->vdev); dev->vdev = NULL; } + + return 0; } /* @@ -1790,8 +1790,6 @@ static struct video_device em28xx_radio_template = { /******************************** usb interface ******************************/ - - static struct video_device *em28xx_vdev_init(struct em28xx *dev, const struct video_device *template, const char *type_name) @@ -1817,15 +1815,85 @@ static struct video_device *em28xx_vdev_init(struct em28xx *dev, return vfd; } -int em28xx_register_analog_devices(struct em28xx *dev) +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->has_video) { + /* This device does not support the v4l2 extension */ + return 0; + } printk(KERN_INFO "%s: v4l2 driver version %s\n", dev->name, EM28XX_VERSION); + 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; + + /* Configure audio */ + ret = em28xx_audio_setup(dev); + if (ret < 0) { + em28xx_errdev("%s: Error while setting audio - error [%d]!\n", + __func__, ret); + goto err; + } + 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); + + 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 err; + } + 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 err; + } + msleep(3); + } + /* set default norm */ dev->norm = V4L2_STD_PAL; v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm); @@ -1888,14 +1956,16 @@ 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 err; /* 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 err; } dev->vdev->queue = &dev->vb_vidq; dev->vdev->queue->lock = &dev->vb_queue_lock; @@ -1925,7 +1995,7 @@ int em28xx_register_analog_devices(struct em28xx *dev) if (ret) { em28xx_errdev("unable to register video device (error=%i).\n", ret); - return ret; + goto err; } /* Allocate and fill vbi video_device struct */ @@ -1954,7 +2024,7 @@ 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 err; } } @@ -1963,13 +2033,14 @@ 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 err; } 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 err; } em28xx_info("Registered radio device as %s\n", video_device_node_name(dev->radio_dev)); @@ -1982,5 +2053,33 @@ int em28xx_register_analog_devices(struct em28xx *dev) em28xx_info("V4L2 VBI device registered as %s\n", video_device_node_name(dev->vbi_dev)); - return 0; + /* 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); + +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_dvb_register(void) +{ + return em28xx_register_extension(&v4l2_ops); +} + +static void __exit em28xx_dvb_unregister(void) +{ + em28xx_unregister_extension(&v4l2_ops); +} + +module_init(em28xx_dvb_register); +module_exit(em28xx_dvb_unregister); diff --git a/drivers/media/usb/em28xx/em28xx.h b/drivers/media/usb/em28xx/em28xx.h index 191ef3593891..bc37d4833dbe 100644 --- a/drivers/media/usb/em28xx/em28xx.h +++ b/drivers/media/usb/em28xx/em28xx.h @@ -26,6 +26,8 @@ #ifndef _EM28XX_H #define _EM28XX_H +#define EM28XX_VERSION "0.2.1" + #include <linux/workqueue.h> #include <linux/i2c.h> #include <linux/mutex.h> @@ -472,6 +474,7 @@ struct em28xx_eeprom { #define EM28XX_AUDIO 0x10 #define EM28XX_DVB 0x20 #define EM28XX_RC 0x30 +#define EM28XX_V4L2 0x40 /* em28xx resource types (used for res_get/res_lock etc */ #define EM28XX_RESOURCE_VIDEO 0x01 @@ -522,9 +525,13 @@ struct em28xx { int model; /* index in the device_data struct */ int devno; /* marks the number of this device */ enum em28xx_chip_id chip_id; - unsigned int is_em25xx:1; /* em25xx/em276x/7x/8x family bridge */ + unsigned int is_em25xx:1; /* em25xx/em276x/7x/8x family bridge */ unsigned char disconnected:1; /* device has been diconnected */ + unsigned int has_video:1; + unsigned int has_audio_class:1; + unsigned int has_alsa_audio:1; + unsigned int is_audio_only:1; int audio_ifnum; @@ -544,10 +551,6 @@ struct em28xx { /* Vinmode/Vinctl used at the driver */ int vinmode, vinctl; - unsigned int has_audio_class:1; - unsigned int has_alsa_audio:1; - unsigned int is_audio_only:1; - /* Controls audio streaming */ struct work_struct wq_trigger; /* Trigger to start/stop audio for alsa module */ atomic_t stream_started; /* stream should be running if true */ @@ -748,10 +751,6 @@ void em28xx_init_extension(struct em28xx *dev); void em28xx_close_extension(struct em28xx *dev); /* Provided by em28xx-video.c */ -int em28xx_vb2_setup(struct em28xx *dev); -int em28xx_register_analog_devices(struct em28xx *dev); -void em28xx_release_analog_resources(struct em28xx *dev); -void em28xx_ctrl_notify(struct v4l2_ctrl *ctrl, void *priv); int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count); int em28xx_stop_vbi_streaming(struct vb2_queue *vq); extern const struct v4l2_ctrl_ops em28xx_ctrl_ops; -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
