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, 874 insertions, 0 deletions

diff --git a/drivers/media/tuners/tda8290.c b/drivers/media/tuners/tda8290.c
new file mode 100644
index 000000000000..8c4852114eeb
--- /dev/null
+++ b/drivers/media/tuners/tda8290.c
@@ -0,0 +1,874 @@
+/*
+
+   i2c tv tuner chip device driver
+   controls the philips tda8290+75 tuner chip combo.
+
+   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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+   This "tda8290" module was split apart from the original "tuner" module.
+*/
+
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/videodev2.h>
+#include "tuner-i2c.h"
+#include "tda8290.h"
+#include "tda827x.h"
+#include "tda18271.h"
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "enable verbose debug messages");
+
+static int deemphasis_50;
+module_param(deemphasis_50, int, 0644);
+MODULE_PARM_DESC(deemphasis_50, "0 - 75us deemphasis; 1 - 50us deemphasis");
+
+/* ---------------------------------------------------------------------- */
+
+struct tda8290_priv {
+	struct tuner_i2c_props i2c_props;
+
+	unsigned char tda8290_easy_mode;
+
+	unsigned char tda827x_addr;
+
+	unsigned char ver;
+#define TDA8290   1
+#define TDA8295   2
+#define TDA8275   4
+#define TDA8275A  8
+#define TDA18271 16
+
+	struct tda827x_config cfg;
+};
+
+/*---------------------------------------------------------------------*/
+
+static int tda8290_i2c_bridge(struct dvb_frontend *fe, int close)
+{
+	struct tda8290_priv *priv = fe->analog_demod_priv;
+
+	unsigned char  enable[2] = { 0x21, 0xC0 };
+	unsigned char disable[2] = { 0x21, 0x00 };
+	unsigned char *msg;
+
+	if (close) {
+		msg = enable;
+		tuner_i2c_xfer_send(&priv->i2c_props, msg, 2);
+		/* let the bridge stabilize */
+		msleep(20);
+	} else {
+		msg = disable;
+		tuner_i2c_xfer_send(&priv->i2c_props, msg, 2);
+	}
+
+	return 0;
+}
+
+static int tda8295_i2c_bridge(struct dvb_frontend *fe, int close)
+{
+	struct tda8290_priv *priv = fe->analog_demod_priv;
+
+	unsigned char  enable[2] = { 0x45, 0xc1 };
+	unsigned char disable[2] = { 0x46, 0x00 };
+	unsigned char buf[3] = { 0x45, 0x01, 0x00 };
+	unsigned char *msg;
+
+	if (close) {
+		msg = enable;
+		tuner_i2c_xfer_send(&priv->i2c_props, msg, 2);
+		/* let the bridge stabilize */
+		msleep(20);
+	} else {
+		msg = disable;
+		tuner_i2c_xfer_send_recv(&priv->i2c_props, msg, 1, &msg[1], 1);
+
+		buf[2] = msg[1];
+		buf[2] &= ~0x04;
+		tuner_i2c_xfer_send(&priv->i2c_props, buf, 3);
+		msleep(5);
+
+		msg[1] |= 0x04;
+		tuner_i2c_xfer_send(&priv->i2c_props, msg, 2);
+	}
+
+	return 0;
+}
+
+/*---------------------------------------------------------------------*/
+
+static void set_audio(struct dvb_frontend *fe,
+		      struct analog_parameters *params)
+{
+	struct tda8290_priv *priv = fe->analog_demod_priv;
+	char* mode;
+
+	if (params->std & V4L2_STD_MN) {
+		priv->tda8290_easy_mode = 0x01;
+		mode = "MN";
+	} else if (params->std & V4L2_STD_B) {
+		priv->tda8290_easy_mode = 0x02;
+		mode = "B";
+	} else if (params->std & V4L2_STD_GH) {
+		priv->tda8290_easy_mode = 0x04;
+		mode = "GH";
+	} else if (params->std & V4L2_STD_PAL_I) {
+		priv->tda8290_easy_mode = 0x08;
+		mode = "I";
+	} else if (params->std & V4L2_STD_DK) {
+		priv->tda8290_easy_mode = 0x10;
+		mode = "DK";
+	} else if (params->std & V4L2_STD_SECAM_L) {
+		priv->tda8290_easy_mode = 0x20;
+		mode = "L";
+	} else if (params->std & V4L2_STD_SECAM_LC) {
+		priv->tda8290_easy_mode = 0x40;
+		mode = "LC";
+	} else {
+		priv->tda8290_easy_mode = 0x10;
+		mode = "xx";
+	}
+
+	if (params->mode == V4L2_TUNER_RADIO) {
+		/* Set TDA8295 to FM radio; Start TDA8290 with MN values */
+		priv->tda8290_easy_mode = (priv->ver & TDA8295) ? 0x80 : 0x01;
+		tuner_dbg("setting to radio FM\n");
+	} else {
+		tuner_dbg("setting tda829x to system %s\n", mode);
+	}
+}
+
+static struct {
+	unsigned char seq[2];
+} fm_mode[] = {
+	{ { 0x01, 0x81} },	/* Put device into expert mode */
+	{ { 0x03, 0x48} },	/* Disable NOTCH and VIDEO filters */
+	{ { 0x04, 0x04} },	/* Disable color carrier filter (SSIF) */
+	{ { 0x05, 0x04} },	/* ADC headroom */
+	{ { 0x06, 0x10} },	/* group delay flat */
+
+	{ { 0x07, 0x00} },	/* use the same radio DTO values as a tda8295 */
+	{ { 0x08, 0x00} },
+	{ { 0x09, 0x80} },
+	{ { 0x0a, 0xda} },
+	{ { 0x0b, 0x4b} },
+	{ { 0x0c, 0x68} },
+
+	{ { 0x0d, 0x00} },	/* PLL off, no video carrier detect */
+	{ { 0x14, 0x00} },	/* disable auto mute if no video */
+};
+
+static void tda8290_set_params(struct dvb_frontend *fe,
+			       struct analog_parameters *params)
+{
+	struct tda8290_priv *priv = fe->analog_demod_priv;
+
+	unsigned char soft_reset[]  = { 0x00, 0x00 };
+	unsigned char easy_mode[]   = { 0x01, priv->tda8290_easy_mode };
+	unsigned char expert_mode[] = { 0x01, 0x80 };
+	unsigned char agc_out_on[]  = { 0x02, 0x00 };
+	unsigned char gainset_off[] = { 0x28, 0x14 };
+	unsigned char if_agc_spd[]  = { 0x0f, 0x88 };
+	unsigned char adc_head_6[]  = { 0x05, 0x04 };
+	unsigned char adc_head_9[]  = { 0x05, 0x02 };
+	unsigned char adc_head_12[] = { 0x05, 0x01 };
+	unsigned char pll_bw_nom[]  = { 0x0d, 0x47 };
+	unsigned char pll_bw_low[]  = { 0x0d, 0x27 };
+	unsigned char gainset_2[]   = { 0x28, 0x64 };
+	unsigned char agc_rst_on[]  = { 0x0e, 0x0b };
+	unsigned char agc_rst_off[] = { 0x0e, 0x09 };
+	unsigned char if_agc_set[]  = { 0x0f, 0x81 };
+	unsigned char addr_adc_sat  = 0x1a;
+	unsigned char addr_agc_stat = 0x1d;
+	unsigned char addr_pll_stat = 0x1b;
+	unsigned char adc_sat, agc_stat,
+		      pll_stat;
+	int i;
+
+	set_audio(fe, params);
+
+	if (priv->cfg.config)
+		tuner_dbg("tda827xa config is 0x%02x\n", priv->cfg.config);
+	tuner_i2c_xfer_send(&priv->i2c_props, easy_mode, 2);
+	tuner_i2c_xfer_send(&priv->i2c_props, agc_out_on, 2);
+	tuner_i2c_xfer_send(&priv->i2c_props, soft_reset, 2);
+	msleep(1);
+
+	if (params->mode == V4L2_TUNER_RADIO) {
+		unsigned char deemphasis[]  = { 0x13, 1 };
+
+		/* FIXME: allow using a different deemphasis */
+
+		if (deemphasis_50)
+			deemphasis[1] = 2;
+
+		for (i = 0; i < ARRAY_SIZE(fm_mode); i++)
+			tuner_i2c_xfer_send(&priv->i2c_props, fm_mode[i].seq, 2);
+
+		tuner_i2c_xfer_send(&priv->i2c_props, deemphasis, 2);
+	} else {
+		expert_mode[1] = priv->tda8290_easy_mode + 0x80;
+		tuner_i2c_xfer_send(&priv->i2c_props, expert_mode, 2);
+		tuner_i2c_xfer_send(&priv->i2c_props, gainset_off, 2);
+		tuner_i2c_xfer_send(&priv->i2c_props, if_agc_spd, 2);
+		if (priv->tda8290_easy_mode & 0x60)
+			tuner_i2c_xfer_send(&priv->i2c_props, adc_head_9, 2);
+		else
+			tuner_i2c_xfer_send(&priv->i2c_props, adc_head_6, 2);
+		tuner_i2c_xfer_send(&priv->i2c_props, pll_bw_nom, 2);
+	}
+
+
+	tda8290_i2c_bridge(fe, 1);
+
+	if (fe->ops.tuner_ops.set_analog_params)
+		fe->ops.tuner_ops.set_analog_params(fe, params);
+
+	for (i = 0; i < 3; i++) {
+		tuner_i2c_xfer_send_recv(&priv->i2c_props,
+					 &addr_pll_stat, 1, &pll_stat, 1);
+		if (pll_stat & 0x80) {
+			tuner_i2c_xfer_send_recv(&priv->i2c_props,
+						 &addr_adc_sat, 1,
+						 &adc_sat, 1);
+			tuner_i2c_xfer_send_recv(&priv->i2c_props,
+						 &addr_agc_stat, 1,
+						 &agc_stat, 1);
+			tuner_dbg("tda8290 is locked, AGC: %d\n", agc_stat);
+			break;
+		} else {
+			tuner_dbg("tda8290 not locked, no signal?\n");
+			msleep(100);
+		}
+	}
+	/* adjust headroom resp. gain */
+	if ((agc_stat > 115) || (!(pll_stat & 0x80) && (adc_sat < 20))) {
+		tuner_dbg("adjust gain, step 1. Agc: %d, ADC stat: %d, lock: %d\n",
+			   agc_stat, adc_sat, pll_stat & 0x80);
+		tuner_i2c_xfer_send(&priv->i2c_props, gainset_2, 2);
+		msleep(100);
+		tuner_i2c_xfer_send_recv(&priv->i2c_props,
+					 &addr_agc_stat, 1, &agc_stat, 1);
+		tuner_i2c_xfer_send_recv(&priv->i2c_props,
+					 &addr_pll_stat, 1, &pll_stat, 1);
+		if ((agc_stat > 115) || !(pll_stat & 0x80)) {
+			tuner_dbg("adjust gain, step 2. Agc: %d, lock: %d\n",
+				   agc_stat, pll_stat & 0x80);
+			if (priv->cfg.agcf)
+				priv->cfg.agcf(fe);
+			msleep(100);
+			tuner_i2c_xfer_send_recv(&priv->i2c_props,
+						 &addr_agc_stat, 1,
+						 &agc_stat, 1);
+			tuner_i2c_xfer_send_recv(&priv->i2c_props,
+						 &addr_pll_stat, 1,
+						 &pll_stat, 1);
+			if((agc_stat > 115) || !(pll_stat & 0x80)) {
+				tuner_dbg("adjust gain, step 3. Agc: %d\n", agc_stat);
+				tuner_i2c_xfer_send(&priv->i2c_props, adc_head_12, 2);
+				tuner_i2c_xfer_send(&priv->i2c_props, pll_bw_low, 2);
+				msleep(100);
+			}
+		}
+	}
+
+	/* l/ l' deadlock? */
+	if(priv->tda8290_easy_mode & 0x60) {
+		tuner_i2c_xfer_send_recv(&priv->i2c_props,
+					 &addr_adc_sat, 1,
+					 &adc_sat, 1);
+		tuner_i2c_xfer_send_recv(&priv->i2c_props,
+					 &addr_pll_stat, 1,
+					 &pll_stat, 1);
+		if ((adc_sat > 20) || !(pll_stat & 0x80)) {
+			tuner_dbg("trying to resolve SECAM L deadlock\n");
+			tuner_i2c_xfer_send(&priv->i2c_props, agc_rst_on, 2);
+			msleep(40);
+			tuner_i2c_xfer_send(&priv->i2c_props, agc_rst_off, 2);
+		}
+	}
+
+	tda8290_i2c_bridge(fe, 0);
+	tuner_i2c_xfer_send(&priv->i2c_props, if_agc_set, 2);
+}
+
+/*---------------------------------------------------------------------*/
+
+static void tda8295_power(struct dvb_frontend *fe, int enable)
+{
+	struct tda8290_priv *priv = fe->analog_demod_priv;
+	unsigned char buf[] = { 0x30, 0x00 }; /* clb_stdbt */
+
+	tuner_i2c_xfer_send_recv(&priv->i2c_props, &buf[0], 1, &buf[1], 1);
+
+	if (enable)
+		buf[1] = 0x01;
+	else
+		buf[1] = 0x03;
+
+	tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
+}
+
+static void tda8295_set_easy_mode(struct dvb_frontend *fe, int enable)
+{
+	struct tda8290_priv *priv = fe->analog_demod_priv;
+	unsigned char buf[] = { 0x01, 0x00 };
+
+	tuner_i2c_xfer_send_recv(&priv->i2c_props, &buf[0], 1, &buf[1], 1);
+
+	if (enable)
+		buf[1] = 0x01; /* rising edge sets regs 0x02 - 0x23 */
+	else
+		buf[1] = 0x00; /* reset active bit */
+
+	tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
+}
+
+static void tda8295_set_video_std(struct dvb_frontend *fe)
+{
+	struct tda8290_priv *priv = fe->analog_demod_priv;
+	unsigned char buf[] = { 0x00, priv->tda8290_easy_mode };
+
+	tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
+
+	tda8295_set_easy_mode(fe, 1);
+	msleep(20);
+	tda8295_set_easy_mode(fe, 0);
+}
+
+/*---------------------------------------------------------------------*/
+
+static void tda8295_agc1_out(struct dvb_frontend *fe, int enable)
+{
+	struct tda8290_priv *priv = fe->analog_demod_priv;
+	unsigned char buf[] = { 0x02, 0x00 }; /* DIV_FUNC */
+
+	tuner_i2c_xfer_send_recv(&priv->i2c_props, &buf[0], 1, &buf[1], 1);
+
+	if (enable)
+		buf[1] &= ~0x40;
+	else
+		buf[1] |= 0x40;
+
+	tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
+}
+
+static void tda8295_agc2_out(struct dvb_frontend *fe, int enable)
+{
+	struct tda8290_priv *priv = fe->analog_demod_priv;
+	unsigned char set_gpio_cf[]    = { 0x44, 0x00 };
+	unsigned char set_gpio_val[]   = { 0x46, 0x00 };
+
+	tuner_i2c_xfer_send_recv(&priv->i2c_props,
+				 &set_gpio_cf[0], 1, &set_gpio_cf[1], 1);
+	tuner_i2c_xfer_send_recv(&priv->i2c_props,
+				 &set_gpio_val[0], 1, &set_gpio_val[1], 1);
+
+	set_gpio_cf[1] &= 0xf0; /* clear GPIO_0 bits 3-0 */
+
+	if (enable) {
+		set_gpio_cf[1]  |= 0x01; /* config GPIO_0 as Open Drain Out */
+		set_gpio_val[1] &= 0xfe; /* set GPIO_0 pin low */
+	}
+	tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_cf, 2);
+	tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_val, 2);
+}
+
+static int tda8295_has_signal(struct dvb_frontend *fe)
+{
+	struct tda8290_priv *priv = fe->analog_demod_priv;
+
+	unsigned char hvpll_stat = 0x26;
+	unsigned char ret;
+
+	tuner_i2c_xfer_send_recv(&priv->i2c_props, &hvpll_stat, 1, &ret, 1);
+	return (ret & 0x01) ? 65535 : 0;
+}
+
+/*---------------------------------------------------------------------*/
+
+static void tda8295_set_params(struct dvb_frontend *fe,
+			       struct analog_parameters *params)
+{
+	struct tda8290_priv *priv = fe->analog_demod_priv;
+
+	unsigned char blanking_mode[]     = { 0x1d, 0x00 };
+
+	set_audio(fe, params);
+
+	tuner_dbg("%s: freq = %d\n", __func__, params->frequency);
+
+	tda8295_power(fe, 1);
+	tda8295_agc1_out(fe, 1);
+
+	tuner_i2c_xfer_send_recv(&priv->i2c_props,
+				 &blanking_mode[0], 1, &blanking_mode[1], 1);
+
+	tda8295_set_video_std(fe);
+
+	blanking_mode[1] = 0x03;
+	tuner_i2c_xfer_send(&priv->i2c_props, blanking_mode, 2);
+	msleep(20);
+
+	tda8295_i2c_bridge(fe, 1);
+
+	if (fe->ops.tuner_ops.set_analog_params)
+		fe->ops.tuner_ops.set_analog_params(fe, params);
+
+	if (priv->cfg.agcf)
+		priv->cfg.agcf(fe);
+
+	if (tda8295_has_signal(fe))
+		tuner_dbg("tda8295 is locked\n");
+	else
+		tuner_dbg("tda8295 not locked, no signal?\n");
+
+	tda8295_i2c_bridge(fe, 0);
+}
+
+/*---------------------------------------------------------------------*/
+
+static int tda8290_has_signal(struct dvb_frontend *fe)
+{
+	struct tda8290_priv *priv = fe->analog_demod_priv;
+
+	unsigned char i2c_get_afc[1] = { 0x1B };
+	unsigned char afc = 0;
+
+	tuner_i2c_xfer_send_recv(&priv->i2c_props,
+				 i2c_get_afc, ARRAY_SIZE(i2c_get_afc), &afc, 1);
+	return (afc & 0x80)? 65535:0;
+}
+
+/*---------------------------------------------------------------------*/
+
+static void tda8290_standby(struct dvb_frontend *fe)
+{
+	struct tda8290_priv *priv = fe->analog_demod_priv;
+
+	unsigned char cb1[] = { 0x30, 0xD0 };
+	unsigned char tda8290_standby[] = { 0x00, 0x02 };
+	unsigned char tda8290_agc_tri[] = { 0x02, 0x20 };
+	struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags=0, .buf=cb1, .len = 2};
+
+	tda8290_i2c_bridge(fe, 1);
+	if (priv->ver & TDA8275A)
+		cb1[1] = 0x90;
+	i2c_transfer(priv->i2c_props.adap, &msg, 1);
+	tda8290_i2c_bridge(fe, 0);
+	tuner_i2c_xfer_send(&priv->i2c_props, tda8290_agc_tri, 2);
+	tuner_i2c_xfer_send(&priv->i2c_props, tda8290_standby, 2);
+}
+
+static void tda8295_standby(struct dvb_frontend *fe)
+{
+	tda8295_agc1_out(fe, 0); /* Put AGC in tri-state */
+
+	tda8295_power(fe, 0);
+}
+
+static void tda8290_init_if(struct dvb_frontend *fe)
+{
+	struct tda8290_priv *priv = fe->analog_demod_priv;
+
+	unsigned char set_VS[] = { 0x30, 0x6F };
+	unsigned char set_GP00_CF[] = { 0x20, 0x01 };
+	unsigned char set_GP01_CF[] = { 0x20, 0x0B };
+
+	if ((priv->cfg.config == 1) || (priv->cfg.config == 2))
+		tuner_i2c_xfer_send(&priv->i2c_props, set_GP00_CF, 2);
+	else
+		tuner_i2c_xfer_send(&priv->i2c_props, set_GP01_CF, 2);
+	tuner_i2c_xfer_send(&priv->i2c_props, set_VS, 2);
+}
+
+static void tda8295_init_if(struct dvb_frontend *fe)
+{
+	struct tda8290_priv *priv = fe->analog_demod_priv;
+
+	static unsigned char set_adc_ctl[]       = { 0x33, 0x14 };
+	static unsigned char set_adc_ctl2[]      = { 0x34, 0x00 };
+	static unsigned char set_pll_reg6[]      = { 0x3e, 0x63 };
+	static unsigned char set_pll_reg0[]      = { 0x38, 0x23 };
+	static unsigned char set_pll_reg7[]      = { 0x3f, 0x01 };
+	static unsigned char set_pll_reg10[]     = { 0x42, 0x61 };
+	static unsigned char set_gpio_reg0[]     = { 0x44, 0x0b };
+
+	tda8295_power(fe, 1);
+
+	tda8295_set_easy_mode(fe, 0);
+	tda8295_set_video_std(fe);
+
+	tuner_i2c_xfer_send(&priv->i2c_props, set_adc_ctl, 2);
+	tuner_i2c_xfer_send(&priv->i2c_props, set_adc_ctl2, 2);
+	tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg6, 2);
+	tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg0, 2);
+	tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg7, 2);
+	tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg10, 2);
+	tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_reg0, 2);
+
+	tda8295_agc1_out(fe, 0);
+	tda8295_agc2_out(fe, 0);
+}
+
+static void tda8290_init_tuner(struct dvb_frontend *fe)
+{
+	struct tda8290_priv *priv = fe->analog_demod_priv;
+	unsigned char tda8275_init[]  = { 0x00, 0x00, 0x00, 0x40, 0xdC, 0x04, 0xAf,
+					  0x3F, 0x2A, 0x04, 0xFF, 0x00, 0x00, 0x40 };
+	unsigned char tda8275a_init[] = { 0x00, 0x00, 0x00, 0x00, 0xdC, 0x05, 0x8b,
+					  0x0c, 0x04, 0x20, 0xFF, 0x00, 0x00, 0x4b };
+	struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags=0,
+			      .buf=tda8275_init, .len = 14};
+	if (priv->ver & TDA8275A)
+		msg.buf = tda8275a_init;
+
+	tda8290_i2c_bridge(fe, 1);
+	i2c_transfer(priv->i2c_props.adap, &msg, 1);
+	tda8290_i2c_bridge(fe, 0);
+}
+
+/*---------------------------------------------------------------------*/
+
+static void tda829x_release(struct dvb_frontend *fe)
+{
+	struct tda8290_priv *priv = fe->analog_demod_priv;
+
+	/* only try to release the tuner if we've
+	 * attached it from within this module */
+	if (priv->ver & (TDA18271 | TDA8275 | TDA8275A))
+		if (fe->ops.tuner_ops.release)
+			fe->ops.tuner_ops.release(fe);
+
+	kfree(fe->analog_demod_priv);
+	fe->analog_demod_priv = NULL;
+}
+
+static struct tda18271_config tda829x_tda18271_config = {
+	.gate    = TDA18271_GATE_ANALOG,
+};
+
+static int tda829x_find_tuner(struct dvb_frontend *fe)
+{
+	struct tda8290_priv *priv = fe->analog_demod_priv;
+	struct analog_demod_ops *analog_ops = &fe->ops.analog_ops;
+	int i, ret, tuners_found;
+	u32 tuner_addrs;
+	u8 data;
+	struct i2c_msg msg = { .flags = I2C_M_RD, .buf = &data, .len = 1 };
+
+	if (!analog_ops->i2c_gate_ctrl) {
+		printk(KERN_ERR "tda8290: no gate control were provided!\n");
+
+		return -EINVAL;
+	}
+
+	analog_ops->i2c_gate_ctrl(fe, 1);
+
+	/* probe for tuner chip */
+	tuners_found = 0;
+	tuner_addrs = 0;
+	for (i = 0x60; i <= 0x63; i++) {
+		msg.addr = i;
+		ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
+		if (ret == 1) {
+			tuners_found++;
+			tuner_addrs = (tuner_addrs << 8) + i;
+		}
+	}
+	/* if there is more than one tuner, we expect the right one is
+	   behind the bridge and we choose the highest address that doesn't
+	   give a response now
+	 */
+
+	analog_ops->i2c_gate_ctrl(fe, 0);
+
+	if (tuners_found > 1)
+		for (i = 0; i < tuners_found; i++) {
+			msg.addr = tuner_addrs  & 0xff;
+			ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
+			if (ret == 1)
+				tuner_addrs = tuner_addrs >> 8;
+			else
+				break;
+		}
+
+	if (tuner_addrs == 0) {
+		tuner_addrs = 0x60;
+		tuner_info("could not clearly identify tuner address, "
+			   "defaulting to %x\n", tuner_addrs);
+	} else {
+		tuner_addrs = tuner_addrs & 0xff;
+		tuner_info("setting tuner address to %x\n", tuner_addrs);
+	}
+	priv->tda827x_addr = tuner_addrs;
+	msg.addr = tuner_addrs;
+
+	analog_ops->i2c_gate_ctrl(fe, 1);
+	ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
+
+	if (ret != 1) {
+		tuner_warn("tuner access failed!\n");
+		analog_ops->i2c_gate_ctrl(fe, 0);
+		return -EREMOTEIO;
+	}
+
+	if ((data == 0x83) || (data == 0x84)) {
+		priv->ver |= TDA18271;
+		tda829x_tda18271_config.config = priv->cfg.config;
+		dvb_attach(tda18271_attach, fe, priv->tda827x_addr,
+			   priv->i2c_props.adap, &tda829x_tda18271_config);
+	} else {
+		if ((data & 0x3c) == 0)
+			priv->ver |= TDA8275;
+		else
+			priv->ver |= TDA8275A;
+
+		dvb_attach(tda827x_attach, fe, priv->tda827x_addr,
+			   priv->i2c_props.adap, &priv->cfg);
+		priv->cfg.switch_addr = priv->i2c_props.addr;
+	}
+	if (fe->ops.tuner_ops.init)
+		fe->ops.tuner_ops.init(fe);
+
+	if (fe->ops.tuner_ops.sleep)
+		fe->ops.tuner_ops.sleep(fe);
+
+	analog_ops->i2c_gate_ctrl(fe, 0);
+
+	return 0;
+}
+
+static int tda8290_probe(struct tuner_i2c_props *i2c_props)
+{
+#define TDA8290_ID 0x89
+	u8 reg = 0x1f, id;
+	struct i2c_msg msg_read[] = {
+		{ .addr = i2c_props->addr, .flags = 0, .len = 1, .buf = &reg },
+		{ .addr = i2c_props->addr, .flags = I2C_M_RD, .len = 1, .buf = &id },
+	};
+
+	/* detect tda8290 */
+	if (i2c_transfer(i2c_props->adap, msg_read, 2) != 2) {
+		printk(KERN_WARNING "%s: couldn't read register 0x%02x\n",
+			       __func__, reg);
+		return -ENODEV;
+	}
+
+	if (id == TDA8290_ID) {
+		if (debug)
+			printk(KERN_DEBUG "%s: tda8290 detected @ %d-%04x\n",
+			       __func__, i2c_adapter_id(i2c_props->adap),
+			       i2c_props->addr);
+		return 0;
+	}
+	return -ENODEV;
+}
+
+static int tda8295_probe(struct tuner_i2c_props *i2c_props)
+{
+#define TDA8295_ID 0x8a
+#define TDA8295C2_ID 0x8b
+	u8 reg = 0x2f, id;
+	struct i2c_msg msg_read[] = {
+		{ .addr = i2c_props->addr, .flags = 0, .len = 1, .buf = &reg },
+		{ .addr = i2c_props->addr, .flags = I2C_M_RD, .len = 1, .buf = &id },
+	};
+
+	/* detect tda8295 */
+	if (i2c_transfer(i2c_props->adap, msg_read, 2) != 2) {
+		printk(KERN_WARNING "%s: couldn't read register 0x%02x\n",
+			       __func__, reg);
+		return -ENODEV;
+	}
+
+	if ((id & 0xfe) == TDA8295_ID) {
+		if (debug)
+			printk(KERN_DEBUG "%s: %s detected @ %d-%04x\n",
+			       __func__, (id == TDA8295_ID) ?
+			       "tda8295c1" : "tda8295c2",
+			       i2c_adapter_id(i2c_props->adap),
+			       i2c_props->addr);
+		return 0;
+	}
+
+	return -ENODEV;
+}
+
+static struct analog_demod_ops tda8290_ops = {
+	.set_params     = tda8290_set_params,
+	.has_signal     = tda8290_has_signal,
+	.standby        = tda8290_standby,
+	.release        = tda829x_release,
+	.i2c_gate_ctrl  = tda8290_i2c_bridge,
+};
+
+static struct analog_demod_ops tda8295_ops = {
+	.set_params     = tda8295_set_params,
+	.has_signal     = tda8295_has_signal,
+	.standby        = tda8295_standby,
+	.release        = tda829x_release,
+	.i2c_gate_ctrl  = tda8295_i2c_bridge,
+};
+
+struct dvb_frontend *tda829x_attach(struct dvb_frontend *fe,
+				    struct i2c_adapter *i2c_adap, u8 i2c_addr,
+				    struct tda829x_config *cfg)
+{
+	struct tda8290_priv *priv = NULL;
+	char *name;
+
+	priv = kzalloc(sizeof(struct tda8290_priv), GFP_KERNEL);
+	if (priv == NULL)
+		return NULL;
+	fe->analog_demod_priv = priv;
+
+	priv->i2c_props.addr     = i2c_addr;
+	priv->i2c_props.adap     = i2c_adap;
+	priv->i2c_props.name     = "tda829x";
+	if (cfg)
+		priv->cfg.config         = cfg->lna_cfg;
+
+	if (tda8290_probe(&priv->i2c_props) == 0) {
+		priv->ver = TDA8290;
+		memcpy(&fe->ops.analog_ops, &tda8290_ops,
+		       sizeof(struct analog_demod_ops));
+	}
+
+	if (tda8295_probe(&priv->i2c_props) == 0) {
+		priv->ver = TDA8295;
+		memcpy(&fe->ops.analog_ops, &tda8295_ops,
+		       sizeof(struct analog_demod_ops));
+	}
+
+	if (!(cfg) || (TDA829X_PROBE_TUNER == cfg->probe_tuner)) {
+		tda8295_power(fe, 1);
+		if (tda829x_find_tuner(fe) < 0)
+			goto fail;
+	}
+
+	switch (priv->ver) {
+	case TDA8290:
+		name = "tda8290";
+		break;
+	case TDA8295:
+		name = "tda8295";
+		break;
+	case TDA8290 | TDA8275:
+		name = "tda8290+75";
+		break;
+	case TDA8295 | TDA8275:
+		name = "tda8295+75";
+		break;
+	case TDA8290 | TDA8275A:
+		name = "tda8290+75a";
+		break;
+	case TDA8295 | TDA8275A:
+		name = "tda8295+75a";
+		break;
+	case TDA8290 | TDA18271:
+		name = "tda8290+18271";
+		break;
+	case TDA8295 | TDA18271:
+		name = "tda8295+18271";
+		break;
+	default:
+		goto fail;
+	}
+	tuner_info("type set to %s\n", name);
+
+	fe->ops.analog_ops.info.name = name;
+
+	if (priv->ver & TDA8290) {
+		if (priv->ver & (TDA8275 | TDA8275A))
+			tda8290_init_tuner(fe);
+		tda8290_init_if(fe);
+	} else if (priv->ver & TDA8295)
+		tda8295_init_if(fe);
+
+	return fe;
+
+fail:
+	memset(&fe->ops.analog_ops, 0, sizeof(struct analog_demod_ops));
+
+	tda829x_release(fe);
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(tda829x_attach);
+
+int tda829x_probe(struct i2c_adapter *i2c_adap, u8 i2c_addr)
+{
+	struct tuner_i2c_props i2c_props = {
+		.adap = i2c_adap,
+		.addr = i2c_addr,
+	};
+
+	unsigned char soft_reset[]   = { 0x00, 0x00 };
+	unsigned char easy_mode_b[]  = { 0x01, 0x02 };
+	unsigned char easy_mode_g[]  = { 0x01, 0x04 };
+	unsigned char restore_9886[] = { 0x00, 0xd6, 0x30 };
+	unsigned char addr_dto_lsb = 0x07;
+	unsigned char data;
+#define PROBE_BUFFER_SIZE 8
+	unsigned char buf[PROBE_BUFFER_SIZE];
+	int i;
+
+	/* rule out tda9887, which would return the same byte repeatedly */
+	tuner_i2c_xfer_send_recv(&i2c_props,
+				 soft_reset, 1, buf, PROBE_BUFFER_SIZE);
+	for (i = 1; i < PROBE_BUFFER_SIZE; i++) {
+		if (buf[i] != buf[0])
+			break;
+	}
+
+	/* all bytes are equal, not a tda829x - probably a tda9887 */
+	if (i == PROBE_BUFFER_SIZE)
+		return -ENODEV;
+
+	if ((tda8290_probe(&i2c_props) == 0) ||
+	    (tda8295_probe(&i2c_props) == 0))
+		return 0;
+
+	/* fall back to old probing method */
+	tuner_i2c_xfer_send(&i2c_props, easy_mode_b, 2);
+	tuner_i2c_xfer_send(&i2c_props, soft_reset, 2);
+	tuner_i2c_xfer_send_recv(&i2c_props, &addr_dto_lsb, 1, &data, 1);
+	if (data == 0) {
+		tuner_i2c_xfer_send(&i2c_props, easy_mode_g, 2);
+		tuner_i2c_xfer_send(&i2c_props, soft_reset, 2);
+		tuner_i2c_xfer_send_recv(&i2c_props,
+					 &addr_dto_lsb, 1, &data, 1);
+		if (data == 0x7b) {
+			return 0;
+		}
+	}
+	tuner_i2c_xfer_send(&i2c_props, restore_9886, 3);
+	return -ENODEV;
+}
+EXPORT_SYMBOL_GPL(tda829x_probe);
+
+MODULE_DESCRIPTION("Philips/NXP TDA8290/TDA8295 analog IF demodulator driver");
+MODULE_AUTHOR("Gerd Knorr, Hartmut Hackmann, Michael Krufky");
+MODULE_LICENSE("GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */