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, 374 insertions, 0 deletions

diff --git a/drivers/media/pci/ivtv/ivtv-gpio.c b/drivers/media/pci/ivtv/ivtv-gpio.c
new file mode 100644
index 000000000000..8f0d07789053
--- /dev/null
+++ b/drivers/media/pci/ivtv/ivtv-gpio.c
@@ -0,0 +1,374 @@
+/*
+    gpio functions.
+    Merging GPIO support into driver:
+    Copyright (C) 2004  Chris Kennedy <c@groovy.org>
+    Copyright (C) 2005-2007  Hans Verkuil <hverkuil@xs4all.nl>
+
+    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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "ivtv-driver.h"
+#include "ivtv-cards.h"
+#include "ivtv-gpio.h"
+#include "tuner-xc2028.h"
+#include <media/tuner.h>
+#include <media/v4l2-ctrls.h>
+
+/*
+ * GPIO assignment of Yuan MPG600/MPG160
+ *
+ *    bit 15  14  13  12 |  11  10   9   8 |   7   6   5   4 |   3   2   1   0
+ * OUTPUT         IN1 IN0                                       AM3 AM2 AM1 AM0
+ *  INPUT                   DM1         DM0
+ *
+ *   IN* : Input selection
+ *          IN1 IN0
+ *           1   1  N/A
+ *           1   0  Line
+ *           0   1  N/A
+ *           0   0  Tuner
+ *
+ *   AM* : Audio Mode
+ *          AM3  0: Normal        1: Mixed(Sub+Main channel)
+ *          AM2  0: Subchannel    1: Main channel
+ *          AM1  0: Stereo        1: Mono
+ *          AM0  0: Normal        1: Mute
+ *
+ *   DM* : Detected tuner audio Mode
+ *          DM1  0: Stereo        1: Mono
+ *          DM0  0: Multiplex     1: Normal
+ *
+ * GPIO Initial Settings
+ *           MPG600   MPG160
+ *     DIR   0x3080   0x7080
+ *  OUTPUT   0x000C   0x400C
+ *
+ *  Special thanks to Makoto Iguchi <iguchi@tahoo.org> and Mr. Anonymous
+ *  for analyzing GPIO of MPG160.
+ *
+ *****************************************************************************
+ *
+ * GPIO assignment of Avermedia M179 (per information direct from AVerMedia)
+ *
+ *    bit 15  14  13  12 |  11  10   9   8 |   7   6   5   4 |   3   2   1   0
+ * OUTPUT IN0 AM0 IN1               AM1 AM2       IN2     BR0   BR1
+ *  INPUT
+ *
+ *   IN* : Input selection
+ *          IN0 IN1 IN2
+ *           *   1   *  Mute
+ *           0   0   0  Line-In
+ *           1   0   0  TV Tuner Audio
+ *           0   0   1  FM Audio
+ *           1   0   1  Mute
+ *
+ *   AM* : Audio Mode
+ *          AM0 AM1 AM2
+ *           0   0   0  TV Tuner Audio: L_OUT=(L+R)/2, R_OUT=SAP
+ *           0   0   1  TV Tuner Audio: L_OUT=R_OUT=SAP   (SAP)
+ *           0   1   0  TV Tuner Audio: L_OUT=L, R_OUT=R   (stereo)
+ *           0   1   1  TV Tuner Audio: mute
+ *           1   *   *  TV Tuner Audio: L_OUT=R_OUT=(L+R)/2   (mono)
+ *
+ *   BR* : Audio Sample Rate (BR stands for bitrate for some reason)
+ *          BR0 BR1
+ *           0   0   32 kHz
+ *           0   1   44.1 kHz
+ *           1   0   48 kHz
+ *
+ *   DM* : Detected tuner audio Mode
+ *         Unknown currently
+ *
+ * Special thanks to AVerMedia Technologies, Inc. and Jiun-Kuei Jung at
+ * AVerMedia for providing the GPIO information used to add support
+ * for the M179 cards.
+ */
+
+/********************* GPIO stuffs *********************/
+
+/* GPIO registers */
+#define IVTV_REG_GPIO_IN    0x9008
+#define IVTV_REG_GPIO_OUT   0x900c
+#define IVTV_REG_GPIO_DIR   0x9020
+
+void ivtv_reset_ir_gpio(struct ivtv *itv)
+{
+	int curdir, curout;
+
+	if (itv->card->type != IVTV_CARD_PVR_150)
+		return;
+	IVTV_DEBUG_INFO("Resetting PVR150 IR\n");
+	curout = read_reg(IVTV_REG_GPIO_OUT);
+	curdir = read_reg(IVTV_REG_GPIO_DIR);
+	curdir |= 0x80;
+	write_reg(curdir, IVTV_REG_GPIO_DIR);
+	curout = (curout & ~0xF) | 1;
+	write_reg(curout, IVTV_REG_GPIO_OUT);
+	/* We could use something else for smaller time */
+	schedule_timeout_interruptible(msecs_to_jiffies(1));
+	curout |= 2;
+	write_reg(curout, IVTV_REG_GPIO_OUT);
+	curdir &= ~0x80;
+	write_reg(curdir, IVTV_REG_GPIO_DIR);
+}
+
+/* Xceive tuner reset function */
+int ivtv_reset_tuner_gpio(void *dev, int component, int cmd, int value)
+{
+	struct i2c_algo_bit_data *algo = dev;
+	struct ivtv *itv = algo->data;
+	u32 curout;
+
+	if (cmd != XC2028_TUNER_RESET)
+		return 0;
+	IVTV_DEBUG_INFO("Resetting tuner\n");
+	curout = read_reg(IVTV_REG_GPIO_OUT);
+	curout &= ~(1 << itv->card->xceive_pin);
+	write_reg(curout, IVTV_REG_GPIO_OUT);
+	schedule_timeout_interruptible(msecs_to_jiffies(1));
+
+	curout |= 1 << itv->card->xceive_pin;
+	write_reg(curout, IVTV_REG_GPIO_OUT);
+	schedule_timeout_interruptible(msecs_to_jiffies(1));
+	return 0;
+}
+
+static inline struct ivtv *sd_to_ivtv(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct ivtv, sd_gpio);
+}
+
+static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
+{
+	return &container_of(ctrl->handler, struct ivtv, hdl_gpio)->sd_gpio;
+}
+
+static int subdev_s_clock_freq(struct v4l2_subdev *sd, u32 freq)
+{
+	struct ivtv *itv = sd_to_ivtv(sd);
+	u16 mask, data;
+
+	mask = itv->card->gpio_audio_freq.mask;
+	switch (freq) {
+	case 32000:
+		data = itv->card->gpio_audio_freq.f32000;
+		break;
+	case 44100:
+		data = itv->card->gpio_audio_freq.f44100;
+		break;
+	case 48000:
+	default:
+		data = itv->card->gpio_audio_freq.f48000;
+		break;
+	}
+	if (mask)
+		write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT);
+	return 0;
+}
+
+static int subdev_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
+{
+	struct ivtv *itv = sd_to_ivtv(sd);
+	u16 mask;
+
+	mask = itv->card->gpio_audio_detect.mask;
+	if (mask == 0 || (read_reg(IVTV_REG_GPIO_IN) & mask))
+		vt->rxsubchans = V4L2_TUNER_SUB_STEREO |
+			V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
+	else
+		vt->rxsubchans = V4L2_TUNER_SUB_MONO;
+	return 0;
+}
+
+static int subdev_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
+{
+	struct ivtv *itv = sd_to_ivtv(sd);
+	u16 mask, data;
+
+	mask = itv->card->gpio_audio_mode.mask;
+	switch (vt->audmode) {
+	case V4L2_TUNER_MODE_LANG1:
+		data = itv->card->gpio_audio_mode.lang1;
+		break;
+	case V4L2_TUNER_MODE_LANG2:
+		data = itv->card->gpio_audio_mode.lang2;
+		break;
+	case V4L2_TUNER_MODE_MONO:
+		data = itv->card->gpio_audio_mode.mono;
+		break;
+	case V4L2_TUNER_MODE_STEREO:
+	case V4L2_TUNER_MODE_LANG1_LANG2:
+	default:
+		data = itv->card->gpio_audio_mode.stereo;
+		break;
+	}
+	if (mask)
+		write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT);
+	return 0;
+}
+
+static int subdev_s_radio(struct v4l2_subdev *sd)
+{
+	struct ivtv *itv = sd_to_ivtv(sd);
+	u16 mask, data;
+
+	mask = itv->card->gpio_audio_input.mask;
+	data = itv->card->gpio_audio_input.radio;
+	if (mask)
+		write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT);
+	return 0;
+}
+
+static int subdev_s_audio_routing(struct v4l2_subdev *sd,
+				  u32 input, u32 output, u32 config)
+{
+	struct ivtv *itv = sd_to_ivtv(sd);
+	u16 mask, data;
+
+	if (input > 2)
+		return -EINVAL;
+	mask = itv->card->gpio_audio_input.mask;
+	switch (input) {
+	case 0:
+		data = itv->card->gpio_audio_input.tuner;
+		break;
+	case 1:
+		data = itv->card->gpio_audio_input.linein;
+		break;
+	case 2:
+	default:
+		data = itv->card->gpio_audio_input.radio;
+		break;
+	}
+	if (mask)
+		write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT);
+	return 0;
+}
+
+static int subdev_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct v4l2_subdev *sd = to_sd(ctrl);
+	struct ivtv *itv = sd_to_ivtv(sd);
+	u16 mask, data;
+
+	switch (ctrl->id) {
+	case V4L2_CID_AUDIO_MUTE:
+		mask = itv->card->gpio_audio_mute.mask;
+		data = ctrl->val ? itv->card->gpio_audio_mute.mute : 0;
+		if (mask)
+			write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) |
+					(data & mask), IVTV_REG_GPIO_OUT);
+		return 0;
+	}
+	return -EINVAL;
+}
+
+
+static int subdev_log_status(struct v4l2_subdev *sd)
+{
+	struct ivtv *itv = sd_to_ivtv(sd);
+
+	IVTV_INFO("GPIO status: DIR=0x%04x OUT=0x%04x IN=0x%04x\n",
+			read_reg(IVTV_REG_GPIO_DIR), read_reg(IVTV_REG_GPIO_OUT),
+			read_reg(IVTV_REG_GPIO_IN));
+	v4l2_ctrl_handler_log_status(&itv->hdl_gpio, sd->name);
+	return 0;
+}
+
+static int subdev_s_video_routing(struct v4l2_subdev *sd,
+				  u32 input, u32 output, u32 config)
+{
+	struct ivtv *itv = sd_to_ivtv(sd);
+	u16 mask, data;
+
+	if (input > 2) /* 0:Tuner 1:Composite 2:S-Video */
+		return -EINVAL;
+	mask = itv->card->gpio_video_input.mask;
+	if (input == 0)
+		data = itv->card->gpio_video_input.tuner;
+	else if (input == 1)
+		data = itv->card->gpio_video_input.composite;
+	else
+		data = itv->card->gpio_video_input.svideo;
+	if (mask)
+		write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT);
+	return 0;
+}
+
+static const struct v4l2_ctrl_ops gpio_ctrl_ops = {
+	.s_ctrl = subdev_s_ctrl,
+};
+
+static const struct v4l2_subdev_core_ops subdev_core_ops = {
+	.log_status = subdev_log_status,
+	.g_ext_ctrls = v4l2_subdev_g_ext_ctrls,
+	.try_ext_ctrls = v4l2_subdev_try_ext_ctrls,
+	.s_ext_ctrls = v4l2_subdev_s_ext_ctrls,
+	.g_ctrl = v4l2_subdev_g_ctrl,
+	.s_ctrl = v4l2_subdev_s_ctrl,
+	.queryctrl = v4l2_subdev_queryctrl,
+	.querymenu = v4l2_subdev_querymenu,
+};
+
+static const struct v4l2_subdev_tuner_ops subdev_tuner_ops = {
+	.s_radio = subdev_s_radio,
+	.g_tuner = subdev_g_tuner,
+	.s_tuner = subdev_s_tuner,
+};
+
+static const struct v4l2_subdev_audio_ops subdev_audio_ops = {
+	.s_clock_freq = subdev_s_clock_freq,
+	.s_routing = subdev_s_audio_routing,
+};
+
+static const struct v4l2_subdev_video_ops subdev_video_ops = {
+	.s_routing = subdev_s_video_routing,
+};
+
+static const struct v4l2_subdev_ops subdev_ops = {
+	.core = &subdev_core_ops,
+	.tuner = &subdev_tuner_ops,
+	.audio = &subdev_audio_ops,
+	.video = &subdev_video_ops,
+};
+
+int ivtv_gpio_init(struct ivtv *itv)
+{
+	u16 pin = 0;
+
+	if (itv->card->xceive_pin)
+		pin = 1 << itv->card->xceive_pin;
+
+	if ((itv->card->gpio_init.direction | pin) == 0)
+		return 0;
+
+	IVTV_DEBUG_INFO("GPIO initial dir: %08x out: %08x\n",
+		   read_reg(IVTV_REG_GPIO_DIR), read_reg(IVTV_REG_GPIO_OUT));
+
+	/* init output data then direction */
+	write_reg(itv->card->gpio_init.initial_value | pin, IVTV_REG_GPIO_OUT);
+	write_reg(itv->card->gpio_init.direction | pin, IVTV_REG_GPIO_DIR);
+	v4l2_subdev_init(&itv->sd_gpio, &subdev_ops);
+	snprintf(itv->sd_gpio.name, sizeof(itv->sd_gpio.name), "%s-gpio", itv->v4l2_dev.name);
+	itv->sd_gpio.grp_id = IVTV_HW_GPIO;
+	v4l2_ctrl_handler_init(&itv->hdl_gpio, 1);
+	v4l2_ctrl_new_std(&itv->hdl_gpio, &gpio_ctrl_ops,
+			V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
+	if (itv->hdl_gpio.error)
+		return itv->hdl_gpio.error;
+	itv->sd_gpio.ctrl_handler = &itv->hdl_gpio;
+	v4l2_ctrl_handler_setup(&itv->hdl_gpio);
+	return v4l2_device_register_subdev(&itv->v4l2_dev, &itv->sd_gpio);
+}