Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:
 "The first part of the media updates for Kernel 3.7.

  This series contain:

   - A major tree renaming patch series: now, drivers are organized
     internally by their used bus, instead of by V4L2 and/or DVB API,
     providing a cleaner driver location for hybrid drivers that
     implement both APIs, and allowing to cleanup the Kconfig items and
     make them more intuitive for the end user;

   - Media Kernel developers are typically very lazy with their duties
     of keeping the MAINTAINERS entries for their drivers updated.  As
     now the tree is more organized, we're doing an effort to add/update
     those entries for the drivers that aren't currently orphan;

   - Several DVB USB drivers got moved to a new DVB USB v2 core; the new
     core fixes several bugs (as the existing one that got bitroted).
     Now, suspend/resume finally started to work fine (at least with
     some devices - we should expect more work with regards to it);

   - added multistream support for DVB-T2, and unified the API for
     DVB-S2 and ISDB-S.  Backward binary support is preserved;

   - as usual, a few new drivers, some V4L2 core improvements and lots
     of drivers improvements and fixes.

  There are some points to notice on this series:

   1) you should expect a trivial merge conflict on your tree, with the
      removal of Documentation/feature-removal-schedule.txt: this series
      would be adding two additional entries there.  I opted to not
      rebase it due to this recent change;

   2) With regards to the PCTV 520e udev-related breakage, I opted to
      fix it in a way that the patches can be backported to 3.5 even
      without your firmware fix patch.  This way, Greg doesn't need to
      rush backporting your patch (as there are still the firmware cache
      and firmware path customization issues to be addressed there).

      I'll send later a patch (likely after the end of the merge window)
      reverting the rest of the DRX-K async firmware request, fully
      restoring its original behaviour to allow media drivers to
      initialize everything serialized as before for 3.7 and upper.

   3) I'm planning to work on this weekend to test the DMABUF patches
      for V4L2.  The patches are on my queue for several Kernel cycles,
      but, up to now, there is/was no way to test the series locally.

      I have some concerns about this particular changeset with regards
      to security issues, and with regards to the replacement of the old
      VIDIOC_OVERLAY ioctl's that is broken on modern systems, due to
      GPU drivers change.  The Overlay API allows direct PCI2PCI
      transfers from a media capture card into the GPU framebuffer, but
      its API is crappy.  Also, the only existing X11 driver that
      implements it requires a XV extension that is not available
      anymore on modern drivers.  The DMABUF can do the same thing, but
      with it is promising to be a properly-designed API.  If I can
      successfully test this series and be happy with it, I should be
      asking you to pull them next week."

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (717 commits)
  em28xx: regression fix: use DRX-K sync firmware requests on em28xx
  drxk: allow loading firmware synchrousnously
  em28xx: Make all em28xx extensions to be initialized asynchronously
  [media] tda18271: properly report read errors in tda18271_get_id
  [media] tda18271: delay IR & RF calibration until init() if delay_cal is set
  [media] MAINTAINERS: add Michael Krufky as tda827x maintainer
  [media] MAINTAINERS: add Michael Krufky as tda8290 maintainer
  [media] MAINTAINERS: add Michael Krufky as cxusb maintainer
  [media] MAINTAINERS: add Michael Krufky as lg2160 maintainer
  [media] MAINTAINERS: add Michael Krufky as lgdt3305 maintainer
  [media] MAINTAINERS: add Michael Krufky as mxl111sf maintainer
  [media] MAINTAINERS: add Michael Krufky as mxl5007t maintainer
  [media] MAINTAINERS: add Michael Krufky as tda18271 maintainer
  [media] s5p-tv: Report only multi-plane capabilities in vidioc_querycap
  [media] s5p-mfc: Fix misplaced return statement in s5p_mfc_suspend()
  [media] exynos-gsc: Add missing static storage class specifiers
  [media] exynos-gsc: Remove <linux/version.h> header file inclusion
  [media] s5p-fimc: Fix incorrect condition in fimc_lite_reqbufs()
  [media] s5p-tv: Fix potential NULL pointer dereference error
  [media] s5k6aa: Fix possible NULL pointer dereference
  ...

1 files changed, 421 insertions, 0 deletions

diff --git a/drivers/media/usb/tlg2300/pd-radio.c b/drivers/media/usb/tlg2300/pd-radio.c
new file mode 100644
index 000000000000..25eeb166aa0b
--- /dev/null
+++ b/drivers/media/usb/tlg2300/pd-radio.c
@@ -0,0 +1,421 @@
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/bitmap.h>
+#include <linux/usb.h>
+#include <linux/i2c.h>
+#include <media/v4l2-dev.h>
+#include <linux/mm.h>
+#include <linux/mutex.h>
+#include <media/v4l2-ioctl.h>
+#include <linux/sched.h>
+
+#include "pd-common.h"
+#include "vendorcmds.h"
+
+static int set_frequency(struct poseidon *p, __u32 frequency);
+static int poseidon_fm_close(struct file *filp);
+static int poseidon_fm_open(struct file *filp);
+
+#define TUNER_FREQ_MIN_FM 76000000
+#define TUNER_FREQ_MAX_FM 108000000
+
+#define MAX_PREEMPHASIS (V4L2_PREEMPHASIS_75_uS + 1)
+static int preemphasis[MAX_PREEMPHASIS] = {
+	TLG_TUNE_ASTD_NONE,   /* V4L2_PREEMPHASIS_DISABLED */
+	TLG_TUNE_ASTD_FM_EUR, /* V4L2_PREEMPHASIS_50_uS    */
+	TLG_TUNE_ASTD_FM_US,  /* V4L2_PREEMPHASIS_75_uS    */
+};
+
+static int poseidon_check_mode_radio(struct poseidon *p)
+{
+	int ret;
+	u32 status;
+
+	set_current_state(TASK_INTERRUPTIBLE);
+	schedule_timeout(HZ/2);
+	ret = usb_set_interface(p->udev, 0, BULK_ALTERNATE_IFACE);
+	if (ret < 0)
+		goto out;
+
+	ret = set_tuner_mode(p, TLG_MODE_FM_RADIO);
+	if (ret != 0)
+		goto out;
+
+	ret = send_set_req(p, SGNL_SRC_SEL, TLG_SIG_SRC_ANTENNA, &status);
+	ret = send_set_req(p, TUNER_AUD_ANA_STD,
+				p->radio_data.pre_emphasis, &status);
+	ret |= send_set_req(p, TUNER_AUD_MODE,
+				TLG_TUNE_TVAUDIO_MODE_STEREO, &status);
+	ret |= send_set_req(p, AUDIO_SAMPLE_RATE_SEL,
+				ATV_AUDIO_RATE_48K, &status);
+	ret |= send_set_req(p, TUNE_FREQ_SELECT, TUNER_FREQ_MIN_FM, &status);
+out:
+	return ret;
+}
+
+#ifdef CONFIG_PM
+static int pm_fm_suspend(struct poseidon *p)
+{
+	logpm(p);
+	pm_alsa_suspend(p);
+	usb_set_interface(p->udev, 0, 0);
+	msleep(300);
+	return 0;
+}
+
+static int pm_fm_resume(struct poseidon *p)
+{
+	logpm(p);
+	poseidon_check_mode_radio(p);
+	set_frequency(p, p->radio_data.fm_freq);
+	pm_alsa_resume(p);
+	return 0;
+}
+#endif
+
+static int poseidon_fm_open(struct file *filp)
+{
+	struct video_device *vfd = video_devdata(filp);
+	struct poseidon *p = video_get_drvdata(vfd);
+	int ret = 0;
+
+	if (!p)
+		return -1;
+
+	mutex_lock(&p->lock);
+	if (p->state & POSEIDON_STATE_DISCONNECT) {
+		ret = -ENODEV;
+		goto out;
+	}
+
+	if (p->state && !(p->state & POSEIDON_STATE_FM)) {
+		ret = -EBUSY;
+		goto out;
+	}
+
+	usb_autopm_get_interface(p->interface);
+	if (0 == p->state) {
+		/* default pre-emphasis */
+		if (p->radio_data.pre_emphasis == 0)
+			p->radio_data.pre_emphasis = TLG_TUNE_ASTD_FM_EUR;
+		set_debug_mode(vfd, debug_mode);
+
+		ret = poseidon_check_mode_radio(p);
+		if (ret < 0) {
+			usb_autopm_put_interface(p->interface);
+			goto out;
+		}
+		p->state |= POSEIDON_STATE_FM;
+	}
+	p->radio_data.users++;
+	kref_get(&p->kref);
+	filp->private_data = p;
+out:
+	mutex_unlock(&p->lock);
+	return ret;
+}
+
+static int poseidon_fm_close(struct file *filp)
+{
+	struct poseidon *p = filp->private_data;
+	struct radio_data *fm = &p->radio_data;
+	uint32_t status;
+
+	mutex_lock(&p->lock);
+	fm->users--;
+	if (0 == fm->users)
+		p->state &= ~POSEIDON_STATE_FM;
+
+	if (fm->is_radio_streaming && filp == p->file_for_stream) {
+		fm->is_radio_streaming = 0;
+		send_set_req(p, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_STOP, &status);
+	}
+	usb_autopm_put_interface(p->interface);
+	mutex_unlock(&p->lock);
+
+	kref_put(&p->kref, poseidon_delete);
+	filp->private_data = NULL;
+	return 0;
+}
+
+static int vidioc_querycap(struct file *file, void *priv,
+			struct v4l2_capability *v)
+{
+	struct poseidon *p = file->private_data;
+
+	strlcpy(v->driver, "tele-radio", sizeof(v->driver));
+	strlcpy(v->card, "Telegent Poseidon", sizeof(v->card));
+	usb_make_path(p->udev, v->bus_info, sizeof(v->bus_info));
+	v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
+	return 0;
+}
+
+static const struct v4l2_file_operations poseidon_fm_fops = {
+	.owner         = THIS_MODULE,
+	.open          = poseidon_fm_open,
+	.release       = poseidon_fm_close,
+	.ioctl	       = video_ioctl2,
+};
+
+static int tlg_fm_vidioc_g_tuner(struct file *file, void *priv,
+				 struct v4l2_tuner *vt)
+{
+	struct tuner_fm_sig_stat_s fm_stat = {};
+	int ret, status, count = 5;
+	struct poseidon *p = file->private_data;
+
+	if (vt->index != 0)
+		return -EINVAL;
+
+	vt->type	= V4L2_TUNER_RADIO;
+	vt->capability	= V4L2_TUNER_CAP_STEREO;
+	vt->rangelow	= TUNER_FREQ_MIN_FM / 62500;
+	vt->rangehigh	= TUNER_FREQ_MAX_FM / 62500;
+	vt->rxsubchans	= V4L2_TUNER_SUB_STEREO;
+	vt->audmode	= V4L2_TUNER_MODE_STEREO;
+	vt->signal	= 0;
+	vt->afc 	= 0;
+
+	mutex_lock(&p->lock);
+	ret = send_get_req(p, TUNER_STATUS, TLG_MODE_FM_RADIO,
+			      &fm_stat, &status, sizeof(fm_stat));
+
+	while (fm_stat.sig_lock_busy && count-- && !ret) {
+		set_current_state(TASK_INTERRUPTIBLE);
+		schedule_timeout(HZ);
+
+		ret = send_get_req(p, TUNER_STATUS, TLG_MODE_FM_RADIO,
+				  &fm_stat, &status, sizeof(fm_stat));
+	}
+	mutex_unlock(&p->lock);
+
+	if (ret || status) {
+		vt->signal = 0;
+	} else if ((fm_stat.sig_present || fm_stat.sig_locked)
+			&& fm_stat.sig_strength == 0) {
+		vt->signal = 0xffff;
+	} else
+		vt->signal = (fm_stat.sig_strength * 255 / 10) << 8;
+
+	return 0;
+}
+
+static int fm_get_freq(struct file *file, void *priv,
+		       struct v4l2_frequency *argp)
+{
+	struct poseidon *p = file->private_data;
+
+	argp->frequency = p->radio_data.fm_freq;
+	return 0;
+}
+
+static int set_frequency(struct poseidon *p, __u32 frequency)
+{
+	__u32 freq ;
+	int ret, status;
+
+	mutex_lock(&p->lock);
+
+	ret = send_set_req(p, TUNER_AUD_ANA_STD,
+				p->radio_data.pre_emphasis, &status);
+
+	freq =  (frequency * 125) * 500 / 1000;/* kHZ */
+	if (freq < TUNER_FREQ_MIN_FM/1000 || freq > TUNER_FREQ_MAX_FM/1000) {
+		ret = -EINVAL;
+		goto error;
+	}
+
+	ret = send_set_req(p, TUNE_FREQ_SELECT, freq, &status);
+	if (ret < 0)
+		goto error ;
+	ret = send_set_req(p, TAKE_REQUEST, 0, &status);
+
+	set_current_state(TASK_INTERRUPTIBLE);
+	schedule_timeout(HZ/4);
+	if (!p->radio_data.is_radio_streaming) {
+		ret = send_set_req(p, TAKE_REQUEST, 0, &status);
+		ret = send_set_req(p, PLAY_SERVICE,
+				TLG_TUNE_PLAY_SVC_START, &status);
+		p->radio_data.is_radio_streaming = 1;
+	}
+	p->radio_data.fm_freq = frequency;
+error:
+	mutex_unlock(&p->lock);
+	return ret;
+}
+
+static int fm_set_freq(struct file *file, void *priv,
+		       struct v4l2_frequency *argp)
+{
+	struct poseidon *p = file->private_data;
+
+	p->file_for_stream  = file;
+#ifdef CONFIG_PM
+	p->pm_suspend = pm_fm_suspend;
+	p->pm_resume  = pm_fm_resume;
+#endif
+	return set_frequency(p, argp->frequency);
+}
+
+static int tlg_fm_vidioc_g_ctrl(struct file *file, void *priv,
+		struct v4l2_control *arg)
+{
+	return 0;
+}
+
+static int tlg_fm_vidioc_g_exts_ctrl(struct file *file, void *fh,
+				struct v4l2_ext_controls *ctrls)
+{
+	struct poseidon *p = file->private_data;
+	int i;
+
+	if (ctrls->ctrl_class != V4L2_CTRL_CLASS_FM_TX)
+		return -EINVAL;
+
+	for (i = 0; i < ctrls->count; i++) {
+		struct v4l2_ext_control *ctrl = ctrls->controls + i;
+
+		if (ctrl->id != V4L2_CID_TUNE_PREEMPHASIS)
+			continue;
+
+		if (i < MAX_PREEMPHASIS)
+			ctrl->value = p->radio_data.pre_emphasis;
+	}
+	return 0;
+}
+
+static int tlg_fm_vidioc_s_exts_ctrl(struct file *file, void *fh,
+			struct v4l2_ext_controls *ctrls)
+{
+	int i;
+
+	if (ctrls->ctrl_class != V4L2_CTRL_CLASS_FM_TX)
+		return -EINVAL;
+
+	for (i = 0; i < ctrls->count; i++) {
+		struct v4l2_ext_control *ctrl = ctrls->controls + i;
+
+		if (ctrl->id != V4L2_CID_TUNE_PREEMPHASIS)
+			continue;
+
+		if (ctrl->value >= 0 && ctrl->value < MAX_PREEMPHASIS) {
+			struct poseidon *p = file->private_data;
+			int pre_emphasis = preemphasis[ctrl->value];
+			u32 status;
+
+			send_set_req(p, TUNER_AUD_ANA_STD,
+						pre_emphasis, &status);
+			p->radio_data.pre_emphasis = pre_emphasis;
+		}
+	}
+	return 0;
+}
+
+static int tlg_fm_vidioc_s_ctrl(struct file *file, void *priv,
+		struct v4l2_control *ctrl)
+{
+	return 0;
+}
+
+static int tlg_fm_vidioc_queryctrl(struct file *file, void *priv,
+		struct v4l2_queryctrl *ctrl)
+{
+	if (!(ctrl->id & V4L2_CTRL_FLAG_NEXT_CTRL))
+		return -EINVAL;
+
+	ctrl->id &= ~V4L2_CTRL_FLAG_NEXT_CTRL;
+	if (ctrl->id != V4L2_CID_TUNE_PREEMPHASIS) {
+		/* return the next supported control */
+		ctrl->id = V4L2_CID_TUNE_PREEMPHASIS;
+		v4l2_ctrl_query_fill(ctrl, V4L2_PREEMPHASIS_DISABLED,
+					V4L2_PREEMPHASIS_75_uS, 1,
+					V4L2_PREEMPHASIS_50_uS);
+		ctrl->flags = V4L2_CTRL_FLAG_UPDATE;
+		return 0;
+	}
+	return -EINVAL;
+}
+
+static int tlg_fm_vidioc_querymenu(struct file *file, void *fh,
+				struct v4l2_querymenu *qmenu)
+{
+	return v4l2_ctrl_query_menu(qmenu, NULL, NULL);
+}
+
+static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *vt)
+{
+	return vt->index > 0 ? -EINVAL : 0;
+}
+static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *va)
+{
+	return (va->index != 0) ? -EINVAL : 0;
+}
+
+static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
+{
+	a->index    = 0;
+	a->mode    = 0;
+	a->capability = V4L2_AUDCAP_STEREO;
+	strcpy(a->name, "Radio");
+	return 0;
+}
+
+static int vidioc_s_input(struct file *filp, void *priv, u32 i)
+{
+	return (i != 0) ? -EINVAL : 0;
+}
+
+static int vidioc_g_input(struct file *filp, void *priv, u32 *i)
+{
+	return (*i != 0) ? -EINVAL : 0;
+}
+
+static const struct v4l2_ioctl_ops poseidon_fm_ioctl_ops = {
+	.vidioc_querycap    = vidioc_querycap,
+	.vidioc_g_audio     = vidioc_g_audio,
+	.vidioc_s_audio     = vidioc_s_audio,
+	.vidioc_g_input     = vidioc_g_input,
+	.vidioc_s_input     = vidioc_s_input,
+	.vidioc_queryctrl   = tlg_fm_vidioc_queryctrl,
+	.vidioc_querymenu   = tlg_fm_vidioc_querymenu,
+	.vidioc_g_ctrl      = tlg_fm_vidioc_g_ctrl,
+	.vidioc_s_ctrl      = tlg_fm_vidioc_s_ctrl,
+	.vidioc_s_ext_ctrls = tlg_fm_vidioc_s_exts_ctrl,
+	.vidioc_g_ext_ctrls = tlg_fm_vidioc_g_exts_ctrl,
+	.vidioc_s_tuner     = vidioc_s_tuner,
+	.vidioc_g_tuner     = tlg_fm_vidioc_g_tuner,
+	.vidioc_g_frequency = fm_get_freq,
+	.vidioc_s_frequency = fm_set_freq,
+};
+
+static struct video_device poseidon_fm_template = {
+	.name       = "Telegent-Radio",
+	.fops       = &poseidon_fm_fops,
+	.minor      = -1,
+	.release    = video_device_release,
+	.ioctl_ops  = &poseidon_fm_ioctl_ops,
+};
+
+int poseidon_fm_init(struct poseidon *p)
+{
+	struct video_device *fm_dev;
+
+	fm_dev = vdev_init(p, &poseidon_fm_template);
+	if (fm_dev == NULL)
+		return -1;
+
+	if (video_register_device(fm_dev, VFL_TYPE_RADIO, -1) < 0) {
+		video_device_release(fm_dev);
+		return -1;
+	}
+	p->radio_data.fm_dev = fm_dev;
+	return 0;
+}
+
+int poseidon_fm_exit(struct poseidon *p)
+{
+	destroy_video_device(&p->radio_data.fm_dev);
+	return 0;
+}