Merge tag 'media/v4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:
 "Brazil's Independence Day pull request :-)

  This is one of the biggest media pull requests, with 625 patches
  affecting almost all parts of media (RC, DVB, V4L2, CEC, docs).

  This contains:

   - A lot of new drivers:
     * DVB frontends: mxl5xx, stv0910, stv6111;
     * camera flash: as3645a led driver;
     * HDMI receiver: adv748X;
     * camera sensor: Omnivision 6650 5M driver (ov6650);
     * HDMI CEC: ao-cec meson driver;
     * V4L2: Qualcom camss driver;
     * Remote controller: gpio-ir-tx, pwm-ir-tx and zx-irdec drivers.

   - The DDbridge DVB driver got a massive update, with makes it in sync
     with modern hardware from that vendor;

   - There's an important milestone on this series: the DVB
     documentation was written in 2003, but only started to be updated
     in 2007. It also used to contain several gaps from the time it was
     kept out of tree, mentioning error codes and device nodes that
     never existed upstream. On this series, it received a massive
     update: all non-deprecated digital TV APIs are now in sync with the
     current implementation;

   - Some DVB APIs that aren't used by any upstream driver got removed;

   - Other parts of the media documentation algo got updated, fixing
     some bugs on its PDF output and making it compatible with Sphinx
     version 1.6.

     As the number of hacks required to build PDF output reduced, I hope
     we'll have less troubles as newer versions of our documentation
     toolchain are released (famous last words);

   - As usual, lots of driver cleanups and improvements"

* tag 'media/v4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (624 commits)
  media: leds: as3645a: add V4L2_FLASH_LED_CLASS dependency
  media: get rid of removed DMX_GET_CAPS and DMX_SET_SOURCE leftovers
  media: Revert "[media] v4l: async: make v4l2 coexist with devicetree nodes in a dt overlay"
  media: staging: atomisp: sh_css_calloc shall return a pointer to the allocated space
  media: Revert "[media] lirc_dev: remove superfluous get/put_device() calls"
  media: add qcom_camss.rst to v4l-drivers rst file
  media: dvb headers: make checkpatch happier
  media: dvb uapi: move frontend legacy API to another part of the book
  media: pixfmt-srggb12p.rst: better format the table for PDF output
  media: docs-rst: media: Don't use \small for V4L2_PIX_FMT_SRGGB10 documentation
  media: index.rst: don't write "Contents:" on PDF output
  media: pixfmt*.rst: replace a two dots by a comma
  media: vidioc-g-fmt.rst: adjust table format
  media: vivid.rst: add a blank line to correct ReST format
  media: v4l2 uapi book: get rid of driver programming's chapter
  media: format.rst: use the right markup for important notes
  media: docs-rst: cardlists: change their format to flat-tables
  media: em28xx-cardlist.rst: update to reflect last changes
  media: v4l2-event.rst: adjust table to fit on PDF output
  media: docs: don't show ToC for each part on PDF output
  ...

1 files changed, 552 insertions, 0 deletions

diff --git a/drivers/media/i2c/adv748x/adv748x-afe.c b/drivers/media/i2c/adv748x/adv748x-afe.c
new file mode 100644
index 000000000000..b33ccfc08708
--- /dev/null
+++ b/drivers/media/i2c/adv748x/adv748x-afe.c
@@ -0,0 +1,552 @@
+/*
+ * Driver for Analog Devices ADV748X 8 channel analog front end (AFE) receiver
+ * with standard definition processor (SDP)
+ *
+ * Copyright (C) 2017 Renesas Electronics Corp.
+ *
+ * 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.
+ */
+
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/v4l2-dv-timings.h>
+
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-dv-timings.h>
+#include <media/v4l2-ioctl.h>
+
+#include "adv748x.h"
+
+/* -----------------------------------------------------------------------------
+ * SDP
+ */
+
+#define ADV748X_AFE_STD_AD_PAL_BG_NTSC_J_SECAM		0x0
+#define ADV748X_AFE_STD_AD_PAL_BG_NTSC_J_SECAM_PED	0x1
+#define ADV748X_AFE_STD_AD_PAL_N_NTSC_J_SECAM		0x2
+#define ADV748X_AFE_STD_AD_PAL_N_NTSC_M_SECAM		0x3
+#define ADV748X_AFE_STD_NTSC_J				0x4
+#define ADV748X_AFE_STD_NTSC_M				0x5
+#define ADV748X_AFE_STD_PAL60				0x6
+#define ADV748X_AFE_STD_NTSC_443			0x7
+#define ADV748X_AFE_STD_PAL_BG				0x8
+#define ADV748X_AFE_STD_PAL_N				0x9
+#define ADV748X_AFE_STD_PAL_M				0xa
+#define ADV748X_AFE_STD_PAL_M_PED			0xb
+#define ADV748X_AFE_STD_PAL_COMB_N			0xc
+#define ADV748X_AFE_STD_PAL_COMB_N_PED			0xd
+#define ADV748X_AFE_STD_PAL_SECAM			0xe
+#define ADV748X_AFE_STD_PAL_SECAM_PED			0xf
+
+static int adv748x_afe_read_ro_map(struct adv748x_state *state, u8 reg)
+{
+	int ret;
+
+	/* Select SDP Read-Only Main Map */
+	ret = sdp_write(state, ADV748X_SDP_MAP_SEL,
+			ADV748X_SDP_MAP_SEL_RO_MAIN);
+	if (ret < 0)
+		return ret;
+
+	return sdp_read(state, reg);
+}
+
+static int adv748x_afe_status(struct adv748x_afe *afe, u32 *signal,
+			      v4l2_std_id *std)
+{
+	struct adv748x_state *state = adv748x_afe_to_state(afe);
+	int info;
+
+	/* Read status from reg 0x10 of SDP RO Map */
+	info = adv748x_afe_read_ro_map(state, ADV748X_SDP_RO_10);
+	if (info < 0)
+		return info;
+
+	if (signal)
+		*signal = info & ADV748X_SDP_RO_10_IN_LOCK ?
+				0 : V4L2_IN_ST_NO_SIGNAL;
+
+	if (!std)
+		return 0;
+
+	/* Standard not valid if there is no signal */
+	if (!(info & ADV748X_SDP_RO_10_IN_LOCK)) {
+		*std = V4L2_STD_UNKNOWN;
+		return 0;
+	}
+
+	switch (info & 0x70) {
+	case 0x00:
+		*std = V4L2_STD_NTSC;
+		break;
+	case 0x10:
+		*std = V4L2_STD_NTSC_443;
+		break;
+	case 0x20:
+		*std = V4L2_STD_PAL_M;
+		break;
+	case 0x30:
+		*std = V4L2_STD_PAL_60;
+		break;
+	case 0x40:
+		*std = V4L2_STD_PAL;
+		break;
+	case 0x50:
+		*std = V4L2_STD_SECAM;
+		break;
+	case 0x60:
+		*std = V4L2_STD_PAL_Nc | V4L2_STD_PAL_N;
+		break;
+	case 0x70:
+		*std = V4L2_STD_SECAM;
+		break;
+	default:
+		*std = V4L2_STD_UNKNOWN;
+		break;
+	}
+
+	return 0;
+}
+
+static void adv748x_afe_fill_format(struct adv748x_afe *afe,
+				    struct v4l2_mbus_framefmt *fmt)
+{
+	memset(fmt, 0, sizeof(*fmt));
+
+	fmt->code = MEDIA_BUS_FMT_UYVY8_2X8;
+	fmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
+	fmt->field = V4L2_FIELD_ALTERNATE;
+
+	fmt->width = 720;
+	fmt->height = afe->curr_norm & V4L2_STD_525_60 ? 480 : 576;
+
+	/* Field height */
+	fmt->height /= 2;
+}
+
+static int adv748x_afe_std(v4l2_std_id std)
+{
+	if (std == V4L2_STD_PAL_60)
+		return ADV748X_AFE_STD_PAL60;
+	if (std == V4L2_STD_NTSC_443)
+		return ADV748X_AFE_STD_NTSC_443;
+	if (std == V4L2_STD_PAL_N)
+		return ADV748X_AFE_STD_PAL_N;
+	if (std == V4L2_STD_PAL_M)
+		return ADV748X_AFE_STD_PAL_M;
+	if (std == V4L2_STD_PAL_Nc)
+		return ADV748X_AFE_STD_PAL_COMB_N;
+	if (std & V4L2_STD_NTSC)
+		return ADV748X_AFE_STD_NTSC_M;
+	if (std & V4L2_STD_PAL)
+		return ADV748X_AFE_STD_PAL_BG;
+	if (std & V4L2_STD_SECAM)
+		return ADV748X_AFE_STD_PAL_SECAM;
+
+	return -EINVAL;
+}
+
+static void adv748x_afe_set_video_standard(struct adv748x_state *state,
+					  int sdpstd)
+{
+	sdp_clrset(state, ADV748X_SDP_VID_SEL, ADV748X_SDP_VID_SEL_MASK,
+		   (sdpstd & 0xf) << ADV748X_SDP_VID_SEL_SHIFT);
+}
+
+static int adv748x_afe_s_input(struct adv748x_afe *afe, unsigned int input)
+{
+	struct adv748x_state *state = adv748x_afe_to_state(afe);
+
+	return sdp_write(state, ADV748X_SDP_INSEL, input);
+}
+
+static int adv748x_afe_g_pixelaspect(struct v4l2_subdev *sd,
+				     struct v4l2_fract *aspect)
+{
+	struct adv748x_afe *afe = adv748x_sd_to_afe(sd);
+
+	if (afe->curr_norm & V4L2_STD_525_60) {
+		aspect->numerator = 11;
+		aspect->denominator = 10;
+	} else {
+		aspect->numerator = 54;
+		aspect->denominator = 59;
+	}
+
+	return 0;
+}
+
+/* -----------------------------------------------------------------------------
+ * v4l2_subdev_video_ops
+ */
+
+static int adv748x_afe_g_std(struct v4l2_subdev *sd, v4l2_std_id *norm)
+{
+	struct adv748x_afe *afe = adv748x_sd_to_afe(sd);
+
+	*norm = afe->curr_norm;
+
+	return 0;
+}
+
+static int adv748x_afe_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
+{
+	struct adv748x_afe *afe = adv748x_sd_to_afe(sd);
+	struct adv748x_state *state = adv748x_afe_to_state(afe);
+	int afe_std = adv748x_afe_std(std);
+
+	if (afe_std < 0)
+		return afe_std;
+
+	mutex_lock(&state->mutex);
+
+	adv748x_afe_set_video_standard(state, afe_std);
+	afe->curr_norm = std;
+
+	mutex_unlock(&state->mutex);
+
+	return 0;
+}
+
+static int adv748x_afe_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
+{
+	struct adv748x_afe *afe = adv748x_sd_to_afe(sd);
+	struct adv748x_state *state = adv748x_afe_to_state(afe);
+	int ret;
+
+	mutex_lock(&state->mutex);
+
+	if (afe->streaming) {
+		ret = -EBUSY;
+		goto unlock;
+	}
+
+	/* Set auto detect mode */
+	adv748x_afe_set_video_standard(state,
+				       ADV748X_AFE_STD_AD_PAL_BG_NTSC_J_SECAM);
+
+	msleep(100);
+
+	/* Read detected standard */
+	ret = adv748x_afe_status(afe, NULL, std);
+
+	/* Restore original state */
+	adv748x_afe_set_video_standard(state, afe->curr_norm);
+
+unlock:
+	mutex_unlock(&state->mutex);
+
+	return ret;
+}
+
+static int adv748x_afe_g_tvnorms(struct v4l2_subdev *sd, v4l2_std_id *norm)
+{
+	*norm = V4L2_STD_ALL;
+
+	return 0;
+}
+
+static int adv748x_afe_g_input_status(struct v4l2_subdev *sd, u32 *status)
+{
+	struct adv748x_afe *afe = adv748x_sd_to_afe(sd);
+	struct adv748x_state *state = adv748x_afe_to_state(afe);
+	int ret;
+
+	mutex_lock(&state->mutex);
+
+	ret = adv748x_afe_status(afe, status, NULL);
+
+	mutex_unlock(&state->mutex);
+	return ret;
+}
+
+static int adv748x_afe_s_stream(struct v4l2_subdev *sd, int enable)
+{
+	struct adv748x_afe *afe = adv748x_sd_to_afe(sd);
+	struct adv748x_state *state = adv748x_afe_to_state(afe);
+	int ret, signal = V4L2_IN_ST_NO_SIGNAL;
+
+	mutex_lock(&state->mutex);
+
+	if (enable) {
+		ret = adv748x_afe_s_input(afe, afe->input);
+		if (ret)
+			goto unlock;
+	}
+
+	ret = adv748x_txb_power(state, enable);
+	if (ret)
+		goto unlock;
+
+	afe->streaming = enable;
+
+	adv748x_afe_status(afe, &signal, NULL);
+	if (signal != V4L2_IN_ST_NO_SIGNAL)
+		adv_dbg(state, "Detected SDP signal\n");
+	else
+		adv_dbg(state, "Couldn't detect SDP video signal\n");
+
+unlock:
+	mutex_unlock(&state->mutex);
+
+	return ret;
+}
+
+static const struct v4l2_subdev_video_ops adv748x_afe_video_ops = {
+	.g_std = adv748x_afe_g_std,
+	.s_std = adv748x_afe_s_std,
+	.querystd = adv748x_afe_querystd,
+	.g_tvnorms = adv748x_afe_g_tvnorms,
+	.g_input_status = adv748x_afe_g_input_status,
+	.s_stream = adv748x_afe_s_stream,
+	.g_pixelaspect = adv748x_afe_g_pixelaspect,
+};
+
+/* -----------------------------------------------------------------------------
+ * v4l2_subdev_pad_ops
+ */
+
+static int adv748x_afe_propagate_pixelrate(struct adv748x_afe *afe)
+{
+	struct v4l2_subdev *tx;
+	unsigned int width, height, fps;
+
+	tx = adv748x_get_remote_sd(&afe->pads[ADV748X_AFE_SOURCE]);
+	if (!tx)
+		return -ENOLINK;
+
+	width = 720;
+	height = afe->curr_norm & V4L2_STD_525_60 ? 480 : 576;
+	fps = afe->curr_norm & V4L2_STD_525_60 ? 30 : 25;
+
+	return adv748x_csi2_set_pixelrate(tx, width * height * fps);
+}
+
+static int adv748x_afe_enum_mbus_code(struct v4l2_subdev *sd,
+				      struct v4l2_subdev_pad_config *cfg,
+				      struct v4l2_subdev_mbus_code_enum *code)
+{
+	if (code->index != 0)
+		return -EINVAL;
+
+	code->code = MEDIA_BUS_FMT_UYVY8_2X8;
+
+	return 0;
+}
+
+static int adv748x_afe_get_format(struct v4l2_subdev *sd,
+				      struct v4l2_subdev_pad_config *cfg,
+				      struct v4l2_subdev_format *sdformat)
+{
+	struct adv748x_afe *afe = adv748x_sd_to_afe(sd);
+	struct v4l2_mbus_framefmt *mbusformat;
+
+	/* It makes no sense to get the format of the analog sink pads */
+	if (sdformat->pad != ADV748X_AFE_SOURCE)
+		return -EINVAL;
+
+	if (sdformat->which == V4L2_SUBDEV_FORMAT_TRY) {
+		mbusformat = v4l2_subdev_get_try_format(sd, cfg, sdformat->pad);
+		sdformat->format = *mbusformat;
+	} else {
+		adv748x_afe_fill_format(afe, &sdformat->format);
+		adv748x_afe_propagate_pixelrate(afe);
+	}
+
+	return 0;
+}
+
+static int adv748x_afe_set_format(struct v4l2_subdev *sd,
+				      struct v4l2_subdev_pad_config *cfg,
+				      struct v4l2_subdev_format *sdformat)
+{
+	struct v4l2_mbus_framefmt *mbusformat;
+
+	/* It makes no sense to get the format of the analog sink pads */
+	if (sdformat->pad != ADV748X_AFE_SOURCE)
+		return -EINVAL;
+
+	if (sdformat->which == V4L2_SUBDEV_FORMAT_ACTIVE)
+		return adv748x_afe_get_format(sd, cfg, sdformat);
+
+	mbusformat = v4l2_subdev_get_try_format(sd, cfg, sdformat->pad);
+	*mbusformat = sdformat->format;
+
+	return 0;
+}
+
+static const struct v4l2_subdev_pad_ops adv748x_afe_pad_ops = {
+	.enum_mbus_code = adv748x_afe_enum_mbus_code,
+	.set_fmt = adv748x_afe_set_format,
+	.get_fmt = adv748x_afe_get_format,
+};
+
+/* -----------------------------------------------------------------------------
+ * v4l2_subdev_ops
+ */
+
+static const struct v4l2_subdev_ops adv748x_afe_ops = {
+	.video = &adv748x_afe_video_ops,
+	.pad = &adv748x_afe_pad_ops,
+};
+
+/* -----------------------------------------------------------------------------
+ * Controls
+ */
+
+static const char * const afe_ctrl_frp_menu[] = {
+	"Disabled",
+	"Solid Blue",
+	"Color Bars",
+	"Grey Ramp",
+	"Cb Ramp",
+	"Cr Ramp",
+	"Boundary"
+};
+
+static int adv748x_afe_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct adv748x_afe *afe = adv748x_ctrl_to_afe(ctrl);
+	struct adv748x_state *state = adv748x_afe_to_state(afe);
+	bool enable;
+	int ret;
+
+	ret = sdp_write(state, 0x0e, 0x00);
+	if (ret < 0)
+		return ret;
+
+	switch (ctrl->id) {
+	case V4L2_CID_BRIGHTNESS:
+		ret = sdp_write(state, ADV748X_SDP_BRI, ctrl->val);
+		break;
+	case V4L2_CID_HUE:
+		/* Hue is inverted according to HSL chart */
+		ret = sdp_write(state, ADV748X_SDP_HUE, -ctrl->val);
+		break;
+	case V4L2_CID_CONTRAST:
+		ret = sdp_write(state, ADV748X_SDP_CON, ctrl->val);
+		break;
+	case V4L2_CID_SATURATION:
+		ret = sdp_write(state, ADV748X_SDP_SD_SAT_U, ctrl->val);
+		if (ret)
+			break;
+		ret = sdp_write(state, ADV748X_SDP_SD_SAT_V, ctrl->val);
+		break;
+	case V4L2_CID_TEST_PATTERN:
+		enable = !!ctrl->val;
+
+		/* Enable/Disable Color bar test patterns */
+		ret = sdp_clrset(state, ADV748X_SDP_DEF, ADV748X_SDP_DEF_VAL_EN,
+				enable);
+		if (ret)
+			break;
+		ret = sdp_clrset(state, ADV748X_SDP_FRP, ADV748X_SDP_FRP_MASK,
+				enable ? ctrl->val - 1 : 0);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return ret;
+}
+
+static const struct v4l2_ctrl_ops adv748x_afe_ctrl_ops = {
+	.s_ctrl = adv748x_afe_s_ctrl,
+};
+
+static int adv748x_afe_init_controls(struct adv748x_afe *afe)
+{
+	struct adv748x_state *state = adv748x_afe_to_state(afe);
+
+	v4l2_ctrl_handler_init(&afe->ctrl_hdl, 5);
+
+	/* Use our mutex for the controls */
+	afe->ctrl_hdl.lock = &state->mutex;
+
+	v4l2_ctrl_new_std(&afe->ctrl_hdl, &adv748x_afe_ctrl_ops,
+			  V4L2_CID_BRIGHTNESS, ADV748X_SDP_BRI_MIN,
+			  ADV748X_SDP_BRI_MAX, 1, ADV748X_SDP_BRI_DEF);
+	v4l2_ctrl_new_std(&afe->ctrl_hdl, &adv748x_afe_ctrl_ops,
+			  V4L2_CID_CONTRAST, ADV748X_SDP_CON_MIN,
+			  ADV748X_SDP_CON_MAX, 1, ADV748X_SDP_CON_DEF);
+	v4l2_ctrl_new_std(&afe->ctrl_hdl, &adv748x_afe_ctrl_ops,
+			  V4L2_CID_SATURATION, ADV748X_SDP_SAT_MIN,
+			  ADV748X_SDP_SAT_MAX, 1, ADV748X_SDP_SAT_DEF);
+	v4l2_ctrl_new_std(&afe->ctrl_hdl, &adv748x_afe_ctrl_ops,
+			  V4L2_CID_HUE, ADV748X_SDP_HUE_MIN,
+			  ADV748X_SDP_HUE_MAX, 1, ADV748X_SDP_HUE_DEF);
+
+	v4l2_ctrl_new_std_menu_items(&afe->ctrl_hdl, &adv748x_afe_ctrl_ops,
+				     V4L2_CID_TEST_PATTERN,
+				     ARRAY_SIZE(afe_ctrl_frp_menu) - 1,
+				     0, 0, afe_ctrl_frp_menu);
+
+	afe->sd.ctrl_handler = &afe->ctrl_hdl;
+	if (afe->ctrl_hdl.error) {
+		v4l2_ctrl_handler_free(&afe->ctrl_hdl);
+		return afe->ctrl_hdl.error;
+	}
+
+	return v4l2_ctrl_handler_setup(&afe->ctrl_hdl);
+}
+
+int adv748x_afe_init(struct adv748x_afe *afe)
+{
+	struct adv748x_state *state = adv748x_afe_to_state(afe);
+	int ret;
+	unsigned int i;
+
+	afe->input = 0;
+	afe->streaming = false;
+	afe->curr_norm = V4L2_STD_NTSC_M;
+
+	adv748x_subdev_init(&afe->sd, state, &adv748x_afe_ops,
+			    MEDIA_ENT_F_ATV_DECODER, "afe");
+
+	/* Identify the first connector found as a default input if set */
+	for (i = ADV748X_PORT_AIN0; i <= ADV748X_PORT_AIN7; i++) {
+		/* Inputs and ports are 1-indexed to match the data sheet */
+		if (state->endpoints[i]) {
+			afe->input = i;
+			break;
+		}
+	}
+
+	adv748x_afe_s_input(afe, afe->input);
+
+	adv_dbg(state, "AFE Default input set to %d\n", afe->input);
+
+	/* Entity pads and sinks are 0-indexed to match the pads */
+	for (i = ADV748X_AFE_SINK_AIN0; i <= ADV748X_AFE_SINK_AIN7; i++)
+		afe->pads[i].flags = MEDIA_PAD_FL_SINK;
+
+	afe->pads[ADV748X_AFE_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
+
+	ret = media_entity_pads_init(&afe->sd.entity, ADV748X_AFE_NR_PADS,
+			afe->pads);
+	if (ret)
+		return ret;
+
+	ret = adv748x_afe_init_controls(afe);
+	if (ret)
+		goto error;
+
+	return 0;
+
+error:
+	media_entity_cleanup(&afe->sd.entity);
+
+	return ret;
+}
+
+void adv748x_afe_cleanup(struct adv748x_afe *afe)
+{
+	v4l2_device_unregister_subdev(&afe->sd);
+	media_entity_cleanup(&afe->sd.entity);
+	v4l2_ctrl_handler_free(&afe->ctrl_hdl);
+}