Merge tag 'media/v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - videobuf2 was moved to a media/common dir, as it is now used by the
   DVB subsystem too

 - Digital TV core memory mapped support interface

 - new sensor driver: ov7740

 - several improvements at ddbridge driver

 - new V4L2 driver: IPU3 CIO2 CSI-2 receiver unit, found on some Intel
   SoCs

 - new tuner driver: tda18250

 - finally got rid of all LIRC staging drivers

 - as we don't have old lirc drivers anymore, restruct the lirc device
   code

 - add support for UVC metadata

 - add a new staging driver for NVIDIA Tegra Video Decoder Engine

 - DVB kAPI headers moved to include/media

 - synchronize the kAPI and uAPI for the DVB subsystem, removing the gap
   for non-legacy APIs

 - reduce the kAPI gap for V4L2

 - lots of other driver enhancements, cleanups, etc.

* tag 'media/v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (407 commits)
  media: v4l2-compat-ioctl32.c: make ctrl_is_pointer work for subdevs
  media: v4l2-compat-ioctl32.c: refactor compat ioctl32 logic
  media: v4l2-compat-ioctl32.c: don't copy back the result for certain errors
  media: v4l2-compat-ioctl32.c: drop pr_info for unknown buffer type
  media: v4l2-compat-ioctl32.c: copy clip list in put_v4l2_window32
  media: v4l2-compat-ioctl32.c: fix ctrl_is_pointer
  media: v4l2-compat-ioctl32.c: copy m.userptr in put_v4l2_plane32
  media: v4l2-compat-ioctl32.c: avoid sizeof(type)
  media: v4l2-compat-ioctl32.c: move 'helper' functions to __get/put_v4l2_format32
  media: v4l2-compat-ioctl32.c: fix the indentation
  media: v4l2-compat-ioctl32.c: add missing VIDIOC_PREPARE_BUF
  media: v4l2-ioctl.c: don't copy back the result for -ENOTTY
  media: v4l2-ioctl.c: use check_fmt for enum/g/s/try_fmt
  media: vivid: fix module load error when enabling fb and no_error_inj=1
  media: dvb_demux: improve debug messages
  media: dvb_demux: Better handle discontinuity errors
  media: cxusb, dib0700: ignore XC2028_I2C_FLUSH
  media: ts2020: avoid integer overflows on 32 bit machines
  media: i2c: ov7740: use gpio/consumer.h instead of gpio.h
  media: entity: Add a nop variant of media_entity_cleanup
  ...

1 files changed, 359 insertions, 0 deletions

diff --git a/drivers/media/pci/ddbridge/ddbridge-ci.c b/drivers/media/pci/ddbridge/ddbridge-ci.c
new file mode 100644
index 000000000000..5828111487b0
--- /dev/null
+++ b/drivers/media/pci/ddbridge/ddbridge-ci.c
@@ -0,0 +1,359 @@
+/*
+ * ddbridge-ci.c: Digital Devices bridge CI (DuoFlex, CI Bridge) support
+ *
+ * Copyright (C) 2010-2017 Digital Devices GmbH
+ *                         Marcus Metzler <mocm@metzlerbros.de>
+ *                         Ralph Metzler <rjkm@metzlerbros.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 only, as published by the Free Software Foundation.
+ *
+ * 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.
+ *
+ * To obtain the license, point your browser to
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include "ddbridge.h"
+#include "ddbridge-regs.h"
+#include "ddbridge-ci.h"
+#include "ddbridge-io.h"
+#include "ddbridge-i2c.h"
+
+#include "cxd2099.h"
+
+/* Octopus CI internal CI interface */
+
+static int wait_ci_ready(struct ddb_ci *ci)
+{
+	u32 count = 10;
+
+	ndelay(500);
+	do {
+		if (ddbreadl(ci->port->dev,
+			     CI_CONTROL(ci->nr)) & CI_READY)
+			break;
+		usleep_range(1, 2);
+		if ((--count) == 0)
+			return -1;
+	} while (1);
+	return 0;
+}
+
+static int read_attribute_mem(struct dvb_ca_en50221 *ca,
+			      int slot, int address)
+{
+	struct ddb_ci *ci = ca->data;
+	u32 val, off = (address >> 1) & (CI_BUFFER_SIZE - 1);
+
+	if (address > CI_BUFFER_SIZE)
+		return -1;
+	ddbwritel(ci->port->dev, CI_READ_CMD | (1 << 16) | address,
+		  CI_DO_READ_ATTRIBUTES(ci->nr));
+	wait_ci_ready(ci);
+	val = 0xff & ddbreadl(ci->port->dev, CI_BUFFER(ci->nr) + off);
+	return val;
+}
+
+static int write_attribute_mem(struct dvb_ca_en50221 *ca, int slot,
+			       int address, u8 value)
+{
+	struct ddb_ci *ci = ca->data;
+
+	ddbwritel(ci->port->dev, CI_WRITE_CMD | (value << 16) | address,
+		  CI_DO_ATTRIBUTE_RW(ci->nr));
+	wait_ci_ready(ci);
+	return 0;
+}
+
+static int read_cam_control(struct dvb_ca_en50221 *ca,
+			    int slot, u8 address)
+{
+	u32 count = 100;
+	struct ddb_ci *ci = ca->data;
+	u32 res;
+
+	ddbwritel(ci->port->dev, CI_READ_CMD | address,
+		  CI_DO_IO_RW(ci->nr));
+	ndelay(500);
+	do {
+		res = ddbreadl(ci->port->dev, CI_READDATA(ci->nr));
+		if (res & CI_READY)
+			break;
+		usleep_range(1, 2);
+		if ((--count) == 0)
+			return -1;
+	} while (1);
+	return 0xff & res;
+}
+
+static int write_cam_control(struct dvb_ca_en50221 *ca, int slot,
+			     u8 address, u8 value)
+{
+	struct ddb_ci *ci = ca->data;
+
+	ddbwritel(ci->port->dev, CI_WRITE_CMD | (value << 16) | address,
+		  CI_DO_IO_RW(ci->nr));
+	wait_ci_ready(ci);
+	return 0;
+}
+
+static int slot_reset(struct dvb_ca_en50221 *ca, int slot)
+{
+	struct ddb_ci *ci = ca->data;
+
+	ddbwritel(ci->port->dev, CI_POWER_ON,
+		  CI_CONTROL(ci->nr));
+	msleep(100);
+	ddbwritel(ci->port->dev, CI_POWER_ON | CI_RESET_CAM,
+		  CI_CONTROL(ci->nr));
+	ddbwritel(ci->port->dev, CI_ENABLE | CI_POWER_ON | CI_RESET_CAM,
+		  CI_CONTROL(ci->nr));
+	usleep_range(20, 25);
+	ddbwritel(ci->port->dev, CI_ENABLE | CI_POWER_ON,
+		  CI_CONTROL(ci->nr));
+	return 0;
+}
+
+static int slot_shutdown(struct dvb_ca_en50221 *ca, int slot)
+{
+	struct ddb_ci *ci = ca->data;
+
+	ddbwritel(ci->port->dev, 0, CI_CONTROL(ci->nr));
+	msleep(300);
+	return 0;
+}
+
+static int slot_ts_enable(struct dvb_ca_en50221 *ca, int slot)
+{
+	struct ddb_ci *ci = ca->data;
+	u32 val = ddbreadl(ci->port->dev, CI_CONTROL(ci->nr));
+
+	ddbwritel(ci->port->dev, val | CI_BYPASS_DISABLE,
+		  CI_CONTROL(ci->nr));
+	return 0;
+}
+
+static int poll_slot_status(struct dvb_ca_en50221 *ca, int slot, int open)
+{
+	struct ddb_ci *ci = ca->data;
+	u32 val = ddbreadl(ci->port->dev, CI_CONTROL(ci->nr));
+	int stat = 0;
+
+	if (val & CI_CAM_DETECT)
+		stat |= DVB_CA_EN50221_POLL_CAM_PRESENT;
+	if (val & CI_CAM_READY)
+		stat |= DVB_CA_EN50221_POLL_CAM_READY;
+	return stat;
+}
+
+static struct dvb_ca_en50221 en_templ = {
+	.read_attribute_mem  = read_attribute_mem,
+	.write_attribute_mem = write_attribute_mem,
+	.read_cam_control    = read_cam_control,
+	.write_cam_control   = write_cam_control,
+	.slot_reset          = slot_reset,
+	.slot_shutdown       = slot_shutdown,
+	.slot_ts_enable      = slot_ts_enable,
+	.poll_slot_status    = poll_slot_status,
+};
+
+static void ci_attach(struct ddb_port *port)
+{
+	struct ddb_ci *ci = NULL;
+
+	ci = kzalloc(sizeof(*ci), GFP_KERNEL);
+	if (!ci)
+		return;
+	memcpy(&ci->en, &en_templ, sizeof(en_templ));
+	ci->en.data = ci;
+	port->en = &ci->en;
+	ci->port = port;
+	ci->nr = port->nr - 2;
+}
+
+/* DuoFlex Dual CI support */
+
+static int write_creg(struct ddb_ci *ci, u8 data, u8 mask)
+{
+	struct i2c_adapter *i2c = &ci->port->i2c->adap;
+	u8 adr = (ci->port->type == DDB_CI_EXTERNAL_XO2) ? 0x12 : 0x13;
+
+	ci->port->creg = (ci->port->creg & ~mask) | data;
+	return i2c_write_reg(i2c, adr, 0x02, ci->port->creg);
+}
+
+static int read_attribute_mem_xo2(struct dvb_ca_en50221 *ca,
+				  int slot, int address)
+{
+	struct ddb_ci *ci = ca->data;
+	struct i2c_adapter *i2c = &ci->port->i2c->adap;
+	u8 adr = (ci->port->type == DDB_CI_EXTERNAL_XO2) ? 0x12 : 0x13;
+	int res;
+	u8 val;
+
+	res = i2c_read_reg16(i2c, adr, 0x8000 | address, &val);
+	return res ? res : val;
+}
+
+static int write_attribute_mem_xo2(struct dvb_ca_en50221 *ca, int slot,
+				   int address, u8 value)
+{
+	struct ddb_ci *ci = ca->data;
+	struct i2c_adapter *i2c = &ci->port->i2c->adap;
+	u8 adr = (ci->port->type == DDB_CI_EXTERNAL_XO2) ? 0x12 : 0x13;
+
+	return i2c_write_reg16(i2c, adr, 0x8000 | address, value);
+}
+
+static int read_cam_control_xo2(struct dvb_ca_en50221 *ca,
+				int slot, u8 address)
+{
+	struct ddb_ci *ci = ca->data;
+	struct i2c_adapter *i2c = &ci->port->i2c->adap;
+	u8 adr = (ci->port->type == DDB_CI_EXTERNAL_XO2) ? 0x12 : 0x13;
+	u8 val;
+	int res;
+
+	res = i2c_read_reg(i2c, adr, 0x20 | (address & 3), &val);
+	return res ? res : val;
+}
+
+static int write_cam_control_xo2(struct dvb_ca_en50221 *ca, int slot,
+				 u8 address, u8 value)
+{
+	struct ddb_ci *ci = ca->data;
+	struct i2c_adapter *i2c = &ci->port->i2c->adap;
+	u8 adr = (ci->port->type == DDB_CI_EXTERNAL_XO2) ? 0x12 : 0x13;
+
+	return i2c_write_reg(i2c, adr, 0x20 | (address & 3), value);
+}
+
+static int slot_reset_xo2(struct dvb_ca_en50221 *ca, int slot)
+{
+	struct ddb_ci *ci = ca->data;
+
+	dev_dbg(ci->port->dev->dev, "%s\n", __func__);
+	write_creg(ci, 0x01, 0x01);
+	write_creg(ci, 0x04, 0x04);
+	msleep(20);
+	write_creg(ci, 0x02, 0x02);
+	write_creg(ci, 0x00, 0x04);
+	write_creg(ci, 0x18, 0x18);
+	return 0;
+}
+
+static int slot_shutdown_xo2(struct dvb_ca_en50221 *ca, int slot)
+{
+	struct ddb_ci *ci = ca->data;
+
+	dev_dbg(ci->port->dev->dev, "%s\n", __func__);
+	write_creg(ci, 0x10, 0xff);
+	write_creg(ci, 0x08, 0x08);
+	return 0;
+}
+
+static int slot_ts_enable_xo2(struct dvb_ca_en50221 *ca, int slot)
+{
+	struct ddb_ci *ci = ca->data;
+
+	dev_dbg(ci->port->dev->dev, "%s\n", __func__);
+	write_creg(ci, 0x00, 0x10);
+	return 0;
+}
+
+static int poll_slot_status_xo2(struct dvb_ca_en50221 *ca, int slot, int open)
+{
+	struct ddb_ci *ci = ca->data;
+	struct i2c_adapter *i2c = &ci->port->i2c->adap;
+	u8 adr = (ci->port->type == DDB_CI_EXTERNAL_XO2) ? 0x12 : 0x13;
+	u8 val = 0;
+	int stat = 0;
+
+	i2c_read_reg(i2c, adr, 0x01, &val);
+
+	if (val & 2)
+		stat |= DVB_CA_EN50221_POLL_CAM_PRESENT;
+	if (val & 1)
+		stat |= DVB_CA_EN50221_POLL_CAM_READY;
+	return stat;
+}
+
+static struct dvb_ca_en50221 en_xo2_templ = {
+	.read_attribute_mem  = read_attribute_mem_xo2,
+	.write_attribute_mem = write_attribute_mem_xo2,
+	.read_cam_control    = read_cam_control_xo2,
+	.write_cam_control   = write_cam_control_xo2,
+	.slot_reset          = slot_reset_xo2,
+	.slot_shutdown       = slot_shutdown_xo2,
+	.slot_ts_enable      = slot_ts_enable_xo2,
+	.poll_slot_status    = poll_slot_status_xo2,
+};
+
+static void ci_xo2_attach(struct ddb_port *port)
+{
+	struct ddb_ci *ci;
+
+	ci = kzalloc(sizeof(*ci), GFP_KERNEL);
+	if (!ci)
+		return;
+	memcpy(&ci->en, &en_xo2_templ, sizeof(en_xo2_templ));
+	ci->en.data = ci;
+	port->en = &ci->en;
+	ci->port = port;
+	ci->nr = port->nr - 2;
+	ci->port->creg = 0;
+	write_creg(ci, 0x10, 0xff);
+	write_creg(ci, 0x08, 0x08);
+}
+
+static struct cxd2099_cfg cxd_cfg = {
+	.bitrate =  72000,
+	.adr     =  0x40,
+	.polarity = 1,
+	.clock_mode = 1,
+	.max_i2c = 512,
+};
+
+int ddb_ci_attach(struct ddb_port *port, u32 bitrate)
+{
+	switch (port->type) {
+	case DDB_CI_EXTERNAL_SONY:
+		cxd_cfg.bitrate = bitrate;
+		port->en = cxd2099_attach(&cxd_cfg, port, &port->i2c->adap);
+		if (!port->en)
+			return -ENODEV;
+		break;
+
+	case DDB_CI_EXTERNAL_XO2:
+	case DDB_CI_EXTERNAL_XO2_B:
+		ci_xo2_attach(port);
+		if (!port->en)
+			return -ENODEV;
+		break;
+
+	case DDB_CI_INTERNAL:
+		ci_attach(port);
+		if (!port->en)
+			return -ENODEV;
+		break;
+	}
+
+	dvb_ca_en50221_init(port->dvb[0].adap, port->en, 0, 1);
+	return 0;
+}
+
+void ddb_ci_detach(struct ddb_port *port)
+{
+	if (port->dvb[0].dev)
+		dvb_unregister_device(port->dvb[0].dev);
+	if (port->en) {
+		dvb_ca_en50221_release(port->en);
+		kfree(port->en->data);
+		port->en = NULL;
+	}
+}