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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/media/radio/si4713
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/media/radio/si4713')
-rw-r--r--drivers/media/radio/si4713/Kconfig41
-rw-r--r--drivers/media/radio/si4713/Makefile8
-rw-r--r--drivers/media/radio/si4713/radio-platform-si4713.c213
-rw-r--r--drivers/media/radio/si4713/radio-usb-si4713.c522
-rw-r--r--drivers/media/radio/si4713/si4713.c1665
-rw-r--r--drivers/media/radio/si4713/si4713.h254
6 files changed, 2703 insertions, 0 deletions
diff --git a/drivers/media/radio/si4713/Kconfig b/drivers/media/radio/si4713/Kconfig
new file mode 100644
index 000000000..490bc6f20
--- /dev/null
+++ b/drivers/media/radio/si4713/Kconfig
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config USB_SI4713
+ tristate "Silicon Labs Si4713 FM Radio Transmitter support with USB"
+ depends on USB && I2C && RADIO_SI4713
+ select I2C_SI4713
+ help
+ This is a driver for USB devices with the Silicon Labs SI4713
+ chip. Currently these devices are known to work.
+ - 10c4:8244: Silicon Labs FM Transmitter USB device.
+
+ Say Y here if you want to connect this type of radio to your
+ computer's USB port.
+
+ To compile this driver as a module, choose M here: the
+ module will be called radio-usb-si4713.
+
+config PLATFORM_SI4713
+ tristate "Silicon Labs Si4713 FM Radio Transmitter support with I2C"
+ depends on I2C && RADIO_SI4713
+ select I2C_SI4713
+ help
+ This is a driver for I2C devices with the Silicon Labs SI4713
+ chip.
+
+ Say Y here if you want to connect this type of radio to your
+ computer's I2C port.
+
+ To compile this driver as a module, choose M here: the
+ module will be called radio-platform-si4713.
+
+config I2C_SI4713
+ tristate "Silicon Labs Si4713 FM Radio Transmitter support"
+ depends on I2C && RADIO_SI4713
+ help
+ Say Y here if you want support to Si4713 FM Radio Transmitter.
+ This device can transmit audio through FM. It can transmit
+ RDS and RBDS signals as well. This module is the v4l2 radio
+ interface for the i2c driver of this device.
+
+ To compile this driver as a module, choose M here: the
+ module will be called si4713.
diff --git a/drivers/media/radio/si4713/Makefile b/drivers/media/radio/si4713/Makefile
new file mode 100644
index 000000000..3411514a5
--- /dev/null
+++ b/drivers/media/radio/si4713/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Makefile for radios with Silicon Labs Si4713 FM Radio Transmitters
+#
+
+obj-$(CONFIG_I2C_SI4713) += si4713.o
+obj-$(CONFIG_USB_SI4713) += radio-usb-si4713.o
+obj-$(CONFIG_PLATFORM_SI4713) += radio-platform-si4713.o
diff --git a/drivers/media/radio/si4713/radio-platform-si4713.c b/drivers/media/radio/si4713/radio-platform-si4713.c
new file mode 100644
index 000000000..433f96427
--- /dev/null
+++ b/drivers/media/radio/si4713/radio-platform-si4713.c
@@ -0,0 +1,213 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * drivers/media/radio/radio-si4713.c
+ *
+ * Platform Driver for Silicon Labs Si4713 FM Radio Transmitter:
+ *
+ * Copyright (c) 2008 Instituto Nokia de Tecnologia - INdT
+ * Contact: Eduardo Valentin <eduardo.valentin@nokia.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/videodev2.h>
+#include <linux/slab.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-fh.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-event.h>
+#include "si4713.h"
+
+/* module parameters */
+static int radio_nr = -1; /* radio device minor (-1 ==> auto assign) */
+module_param(radio_nr, int, 0);
+MODULE_PARM_DESC(radio_nr,
+ "Minor number for radio device (-1 ==> auto assign)");
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Eduardo Valentin <eduardo.valentin@nokia.com>");
+MODULE_DESCRIPTION("Platform driver for Si4713 FM Radio Transmitter");
+MODULE_VERSION("0.0.1");
+MODULE_ALIAS("platform:radio-si4713");
+
+/* Driver state struct */
+struct radio_si4713_device {
+ struct v4l2_device v4l2_dev;
+ struct video_device radio_dev;
+ struct mutex lock;
+};
+
+/* radio_si4713_fops - file operations interface */
+static const struct v4l2_file_operations radio_si4713_fops = {
+ .owner = THIS_MODULE,
+ .open = v4l2_fh_open,
+ .release = v4l2_fh_release,
+ .poll = v4l2_ctrl_poll,
+ /* Note: locking is done at the subdev level in the i2c driver. */
+ .unlocked_ioctl = video_ioctl2,
+};
+
+/* Video4Linux Interface */
+
+/* radio_si4713_querycap - query device capabilities */
+static int radio_si4713_querycap(struct file *file, void *priv,
+ struct v4l2_capability *capability)
+{
+ strscpy(capability->driver, "radio-si4713", sizeof(capability->driver));
+ strscpy(capability->card, "Silicon Labs Si4713 Modulator",
+ sizeof(capability->card));
+ strscpy(capability->bus_info, "platform:radio-si4713",
+ sizeof(capability->bus_info));
+ return 0;
+}
+
+/*
+ * v4l2 ioctl call backs.
+ * we are just a wrapper for v4l2_sub_devs.
+ */
+static inline struct v4l2_device *get_v4l2_dev(struct file *file)
+{
+ return &((struct radio_si4713_device *)video_drvdata(file))->v4l2_dev;
+}
+
+static int radio_si4713_g_modulator(struct file *file, void *p,
+ struct v4l2_modulator *vm)
+{
+ return v4l2_device_call_until_err(get_v4l2_dev(file), 0, tuner,
+ g_modulator, vm);
+}
+
+static int radio_si4713_s_modulator(struct file *file, void *p,
+ const struct v4l2_modulator *vm)
+{
+ return v4l2_device_call_until_err(get_v4l2_dev(file), 0, tuner,
+ s_modulator, vm);
+}
+
+static int radio_si4713_g_frequency(struct file *file, void *p,
+ struct v4l2_frequency *vf)
+{
+ return v4l2_device_call_until_err(get_v4l2_dev(file), 0, tuner,
+ g_frequency, vf);
+}
+
+static int radio_si4713_s_frequency(struct file *file, void *p,
+ const struct v4l2_frequency *vf)
+{
+ return v4l2_device_call_until_err(get_v4l2_dev(file), 0, tuner,
+ s_frequency, vf);
+}
+
+static long radio_si4713_default(struct file *file, void *p,
+ bool valid_prio, unsigned int cmd, void *arg)
+{
+ return v4l2_device_call_until_err(get_v4l2_dev(file), 0, core,
+ ioctl, cmd, arg);
+}
+
+static const struct v4l2_ioctl_ops radio_si4713_ioctl_ops = {
+ .vidioc_querycap = radio_si4713_querycap,
+ .vidioc_g_modulator = radio_si4713_g_modulator,
+ .vidioc_s_modulator = radio_si4713_s_modulator,
+ .vidioc_g_frequency = radio_si4713_g_frequency,
+ .vidioc_s_frequency = radio_si4713_s_frequency,
+ .vidioc_log_status = v4l2_ctrl_log_status,
+ .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
+ .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+ .vidioc_default = radio_si4713_default,
+};
+
+/* radio_si4713_vdev_template - video device interface */
+static const struct video_device radio_si4713_vdev_template = {
+ .fops = &radio_si4713_fops,
+ .name = "radio-si4713",
+ .release = video_device_release_empty,
+ .ioctl_ops = &radio_si4713_ioctl_ops,
+ .vfl_dir = VFL_DIR_TX,
+};
+
+/* Platform driver interface */
+/* radio_si4713_pdriver_probe - probe for the device */
+static int radio_si4713_pdriver_probe(struct platform_device *pdev)
+{
+ struct radio_si4713_platform_data *pdata = pdev->dev.platform_data;
+ struct radio_si4713_device *rsdev;
+ struct v4l2_subdev *sd;
+ int rval = 0;
+
+ if (!pdata) {
+ dev_err(&pdev->dev, "Cannot proceed without platform data.\n");
+ rval = -EINVAL;
+ goto exit;
+ }
+
+ rsdev = devm_kzalloc(&pdev->dev, sizeof(*rsdev), GFP_KERNEL);
+ if (!rsdev) {
+ dev_err(&pdev->dev, "Failed to alloc video device.\n");
+ rval = -ENOMEM;
+ goto exit;
+ }
+ mutex_init(&rsdev->lock);
+
+ rval = v4l2_device_register(&pdev->dev, &rsdev->v4l2_dev);
+ if (rval) {
+ dev_err(&pdev->dev, "Failed to register v4l2 device.\n");
+ goto exit;
+ }
+
+ sd = i2c_get_clientdata(pdata->subdev);
+ rval = v4l2_device_register_subdev(&rsdev->v4l2_dev, sd);
+ if (rval) {
+ dev_err(&pdev->dev, "Cannot get v4l2 subdevice\n");
+ goto unregister_v4l2_dev;
+ }
+
+ rsdev->radio_dev = radio_si4713_vdev_template;
+ rsdev->radio_dev.v4l2_dev = &rsdev->v4l2_dev;
+ rsdev->radio_dev.ctrl_handler = sd->ctrl_handler;
+ /* Serialize all access to the si4713 */
+ rsdev->radio_dev.lock = &rsdev->lock;
+ rsdev->radio_dev.device_caps = V4L2_CAP_MODULATOR | V4L2_CAP_RDS_OUTPUT;
+ video_set_drvdata(&rsdev->radio_dev, rsdev);
+ if (video_register_device(&rsdev->radio_dev, VFL_TYPE_RADIO, radio_nr)) {
+ dev_err(&pdev->dev, "Could not register video device.\n");
+ rval = -EIO;
+ goto unregister_v4l2_dev;
+ }
+ dev_info(&pdev->dev, "New device successfully probed\n");
+
+ goto exit;
+
+unregister_v4l2_dev:
+ v4l2_device_unregister(&rsdev->v4l2_dev);
+exit:
+ return rval;
+}
+
+/* radio_si4713_pdriver_remove - remove the device */
+static int radio_si4713_pdriver_remove(struct platform_device *pdev)
+{
+ struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
+ struct radio_si4713_device *rsdev;
+
+ rsdev = container_of(v4l2_dev, struct radio_si4713_device, v4l2_dev);
+ video_unregister_device(&rsdev->radio_dev);
+ v4l2_device_unregister(&rsdev->v4l2_dev);
+
+ return 0;
+}
+
+static struct platform_driver radio_si4713_pdriver = {
+ .driver = {
+ .name = "radio-si4713",
+ },
+ .probe = radio_si4713_pdriver_probe,
+ .remove = radio_si4713_pdriver_remove,
+};
+
+module_platform_driver(radio_si4713_pdriver);
diff --git a/drivers/media/radio/si4713/radio-usb-si4713.c b/drivers/media/radio/si4713/radio-usb-si4713.c
new file mode 100644
index 000000000..2cf36c8ab
--- /dev/null
+++ b/drivers/media/radio/si4713/radio-usb-si4713.c
@@ -0,0 +1,522 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2013 Cisco Systems, Inc. and/or its affiliates.
+ * All rights reserved.
+ */
+
+/* kernel includes */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/mutex.h>
+#include <linux/i2c.h>
+/* V4l includes */
+#include <linux/videodev2.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-event.h>
+#include <linux/platform_data/media/si4713.h>
+
+#include "si4713.h"
+
+/* driver and module definitions */
+MODULE_AUTHOR("Dinesh Ram <dinesh.ram@cern.ch>");
+MODULE_DESCRIPTION("Si4713 FM Transmitter USB driver");
+MODULE_LICENSE("GPL v2");
+
+/* The Device announces itself as Cygnal Integrated Products, Inc. */
+#define USB_SI4713_VENDOR 0x10c4
+#define USB_SI4713_PRODUCT 0x8244
+
+#define BUFFER_LENGTH 64
+#define USB_TIMEOUT 1000
+#define USB_RESP_TIMEOUT 50000
+
+/* USB Device ID List */
+static const struct usb_device_id usb_si4713_usb_device_table[] = {
+ {USB_DEVICE_AND_INTERFACE_INFO(USB_SI4713_VENDOR, USB_SI4713_PRODUCT,
+ USB_CLASS_HID, 0, 0) },
+ { } /* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(usb, usb_si4713_usb_device_table);
+
+struct si4713_usb_device {
+ struct usb_device *usbdev;
+ struct usb_interface *intf;
+ struct video_device vdev;
+ struct v4l2_device v4l2_dev;
+ struct v4l2_subdev *v4l2_subdev;
+ struct mutex lock;
+ struct i2c_adapter i2c_adapter;
+
+ u8 *buffer;
+};
+
+static inline struct si4713_usb_device *to_si4713_dev(struct v4l2_device *v4l2_dev)
+{
+ return container_of(v4l2_dev, struct si4713_usb_device, v4l2_dev);
+}
+
+static int vidioc_querycap(struct file *file, void *priv,
+ struct v4l2_capability *v)
+{
+ struct si4713_usb_device *radio = video_drvdata(file);
+
+ strscpy(v->driver, "radio-usb-si4713", sizeof(v->driver));
+ strscpy(v->card, "Si4713 FM Transmitter", sizeof(v->card));
+ usb_make_path(radio->usbdev, v->bus_info, sizeof(v->bus_info));
+ return 0;
+}
+
+static int vidioc_g_modulator(struct file *file, void *priv,
+ struct v4l2_modulator *vm)
+{
+ struct si4713_usb_device *radio = video_drvdata(file);
+
+ return v4l2_subdev_call(radio->v4l2_subdev, tuner, g_modulator, vm);
+}
+
+static int vidioc_s_modulator(struct file *file, void *priv,
+ const struct v4l2_modulator *vm)
+{
+ struct si4713_usb_device *radio = video_drvdata(file);
+
+ return v4l2_subdev_call(radio->v4l2_subdev, tuner, s_modulator, vm);
+}
+
+static int vidioc_s_frequency(struct file *file, void *priv,
+ const struct v4l2_frequency *vf)
+{
+ struct si4713_usb_device *radio = video_drvdata(file);
+
+ return v4l2_subdev_call(radio->v4l2_subdev, tuner, s_frequency, vf);
+}
+
+static int vidioc_g_frequency(struct file *file, void *priv,
+ struct v4l2_frequency *vf)
+{
+ struct si4713_usb_device *radio = video_drvdata(file);
+
+ return v4l2_subdev_call(radio->v4l2_subdev, tuner, g_frequency, vf);
+}
+
+static const struct v4l2_ioctl_ops usb_si4713_ioctl_ops = {
+ .vidioc_querycap = vidioc_querycap,
+ .vidioc_g_modulator = vidioc_g_modulator,
+ .vidioc_s_modulator = vidioc_s_modulator,
+ .vidioc_g_frequency = vidioc_g_frequency,
+ .vidioc_s_frequency = vidioc_s_frequency,
+ .vidioc_log_status = v4l2_ctrl_log_status,
+ .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
+ .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+};
+
+/* File system interface */
+static const struct v4l2_file_operations usb_si4713_fops = {
+ .owner = THIS_MODULE,
+ .open = v4l2_fh_open,
+ .release = v4l2_fh_release,
+ .poll = v4l2_ctrl_poll,
+ .unlocked_ioctl = video_ioctl2,
+};
+
+static void usb_si4713_video_device_release(struct v4l2_device *v4l2_dev)
+{
+ struct si4713_usb_device *radio = to_si4713_dev(v4l2_dev);
+ struct i2c_adapter *adapter = &radio->i2c_adapter;
+
+ i2c_del_adapter(adapter);
+ v4l2_device_unregister(&radio->v4l2_dev);
+ kfree(radio->buffer);
+ kfree(radio);
+}
+
+/*
+ * This command sequence emulates the behaviour of the Windows driver.
+ * The structure of these commands was determined by sniffing the
+ * usb traffic of the device during startup.
+ * Most likely, these commands make some queries to the device.
+ * Commands are sent to enquire parameters like the bus mode,
+ * component revision, boot mode, the device serial number etc.
+ *
+ * These commands are necessary to be sent in this order during startup.
+ * The device fails to powerup if these commands are not sent.
+ *
+ * The complete list of startup commands is given in the start_seq table below.
+ */
+static int si4713_send_startup_command(struct si4713_usb_device *radio)
+{
+ unsigned long until_jiffies = jiffies + usecs_to_jiffies(USB_RESP_TIMEOUT) + 1;
+ u8 *buffer = radio->buffer;
+ int retval;
+
+ /* send the command */
+ retval = usb_control_msg(radio->usbdev, usb_sndctrlpipe(radio->usbdev, 0),
+ 0x09, 0x21, 0x033f, 0, radio->buffer,
+ BUFFER_LENGTH, USB_TIMEOUT);
+ if (retval < 0)
+ return retval;
+
+ for (;;) {
+ /* receive the response */
+ retval = usb_control_msg(radio->usbdev, usb_rcvctrlpipe(radio->usbdev, 0),
+ 0x01, 0xa1, 0x033f, 0, radio->buffer,
+ BUFFER_LENGTH, USB_TIMEOUT);
+ if (retval < 0)
+ return retval;
+ if (!radio->buffer[1]) {
+ /* USB traffic sniffing showed that some commands require
+ * additional checks. */
+ switch (buffer[1]) {
+ case 0x32:
+ if (radio->buffer[2] == 0)
+ return 0;
+ break;
+ case 0x14:
+ case 0x12:
+ if (radio->buffer[2] & SI4713_CTS)
+ return 0;
+ break;
+ case 0x06:
+ if ((radio->buffer[2] & SI4713_CTS) && radio->buffer[9] == 0x08)
+ return 0;
+ break;
+ default:
+ return 0;
+ }
+ }
+ if (time_is_before_jiffies(until_jiffies))
+ return -EIO;
+ msleep(3);
+ }
+
+ return retval;
+}
+
+struct si4713_start_seq_table {
+ int len;
+ u8 payload[8];
+};
+
+/*
+ * Some of the startup commands that could be recognized are :
+ * (0x03): Get serial number of the board (Response : CB000-00-00)
+ * (0x06, 0x03, 0x03, 0x08, 0x01, 0x0f) : Get Component revision
+ */
+static const struct si4713_start_seq_table start_seq[] = {
+
+ { 1, { 0x03 } },
+ { 2, { 0x32, 0x7f } },
+ { 6, { 0x06, 0x03, 0x03, 0x08, 0x01, 0x0f } },
+ { 2, { 0x14, 0x02 } },
+ { 2, { 0x09, 0x90 } },
+ { 3, { 0x08, 0x90, 0xfa } },
+ { 2, { 0x36, 0x01 } },
+ { 2, { 0x05, 0x03 } },
+ { 7, { 0x06, 0x00, 0x06, 0x0e, 0x01, 0x0f, 0x05 } },
+ { 1, { 0x12 } },
+ /* Commands that are sent after pressing the 'Initialize'
+ button in the windows application */
+ { 1, { 0x03 } },
+ { 1, { 0x01 } },
+ { 2, { 0x09, 0x90 } },
+ { 3, { 0x08, 0x90, 0xfa } },
+ { 1, { 0x34 } },
+ { 2, { 0x35, 0x01 } },
+ { 2, { 0x36, 0x01 } },
+ { 2, { 0x30, 0x09 } },
+ { 4, { 0x30, 0x06, 0x00, 0xe2 } },
+ { 3, { 0x31, 0x01, 0x30 } },
+ { 3, { 0x31, 0x04, 0x09 } },
+ { 2, { 0x05, 0x02 } },
+ { 6, { 0x06, 0x03, 0x03, 0x08, 0x01, 0x0f } },
+};
+
+static int si4713_start_seq(struct si4713_usb_device *radio)
+{
+ int retval = 0;
+ int i;
+
+ radio->buffer[0] = 0x3f;
+
+ for (i = 0; i < ARRAY_SIZE(start_seq); i++) {
+ int len = start_seq[i].len;
+ const u8 *payload = start_seq[i].payload;
+
+ memcpy(radio->buffer + 1, payload, len);
+ memset(radio->buffer + len + 1, 0, BUFFER_LENGTH - 1 - len);
+ retval = si4713_send_startup_command(radio);
+ }
+
+ return retval;
+}
+
+static struct i2c_board_info si4713_board_info = {
+ I2C_BOARD_INFO("si4713", SI4713_I2C_ADDR_BUSEN_HIGH),
+};
+
+struct si4713_command_table {
+ int command_id;
+ u8 payload[8];
+};
+
+/*
+ * Structure of a command :
+ * Byte 1 : 0x3f (always)
+ * Byte 2 : 0x06 (send a command)
+ * Byte 3 : Unknown
+ * Byte 4 : Number of arguments + 1 (for the command byte)
+ * Byte 5 : Number of response bytes
+ */
+static struct si4713_command_table command_table[] = {
+
+ { SI4713_CMD_POWER_UP, { 0x00, SI4713_PWUP_NARGS + 1, SI4713_PWUP_NRESP} },
+ { SI4713_CMD_GET_REV, { 0x03, 0x01, SI4713_GETREV_NRESP } },
+ { SI4713_CMD_POWER_DOWN, { 0x00, 0x01, SI4713_PWDN_NRESP} },
+ { SI4713_CMD_SET_PROPERTY, { 0x00, SI4713_SET_PROP_NARGS + 1, SI4713_SET_PROP_NRESP } },
+ { SI4713_CMD_GET_PROPERTY, { 0x00, SI4713_GET_PROP_NARGS + 1, SI4713_GET_PROP_NRESP } },
+ { SI4713_CMD_TX_TUNE_FREQ, { 0x03, SI4713_TXFREQ_NARGS + 1, SI4713_TXFREQ_NRESP } },
+ { SI4713_CMD_TX_TUNE_POWER, { 0x03, SI4713_TXPWR_NARGS + 1, SI4713_TXPWR_NRESP } },
+ { SI4713_CMD_TX_TUNE_MEASURE, { 0x03, SI4713_TXMEA_NARGS + 1, SI4713_TXMEA_NRESP } },
+ { SI4713_CMD_TX_TUNE_STATUS, { 0x00, SI4713_TXSTATUS_NARGS + 1, SI4713_TXSTATUS_NRESP } },
+ { SI4713_CMD_TX_ASQ_STATUS, { 0x03, SI4713_ASQSTATUS_NARGS + 1, SI4713_ASQSTATUS_NRESP } },
+ { SI4713_CMD_GET_INT_STATUS, { 0x03, 0x01, SI4713_GET_STATUS_NRESP } },
+ { SI4713_CMD_TX_RDS_BUFF, { 0x03, SI4713_RDSBUFF_NARGS + 1, SI4713_RDSBUFF_NRESP } },
+ { SI4713_CMD_TX_RDS_PS, { 0x00, SI4713_RDSPS_NARGS + 1, SI4713_RDSPS_NRESP } },
+};
+
+static int send_command(struct si4713_usb_device *radio, u8 *payload, char *data, int len)
+{
+ int retval;
+
+ radio->buffer[0] = 0x3f;
+ radio->buffer[1] = 0x06;
+
+ memcpy(radio->buffer + 2, payload, 3);
+ memcpy(radio->buffer + 5, data, len);
+ memset(radio->buffer + 5 + len, 0, BUFFER_LENGTH - 5 - len);
+
+ /* send the command */
+ retval = usb_control_msg(radio->usbdev, usb_sndctrlpipe(radio->usbdev, 0),
+ 0x09, 0x21, 0x033f, 0, radio->buffer,
+ BUFFER_LENGTH, USB_TIMEOUT);
+
+ return retval < 0 ? retval : 0;
+}
+
+static int si4713_i2c_read(struct si4713_usb_device *radio, char *data, int len)
+{
+ unsigned long until_jiffies = jiffies + usecs_to_jiffies(USB_RESP_TIMEOUT) + 1;
+ int retval;
+
+ /* receive the response */
+ for (;;) {
+ retval = usb_control_msg(radio->usbdev,
+ usb_rcvctrlpipe(radio->usbdev, 0),
+ 0x01, 0xa1, 0x033f, 0, radio->buffer,
+ BUFFER_LENGTH, USB_TIMEOUT);
+ if (retval < 0)
+ return retval;
+
+ /*
+ * Check that we get a valid reply back (buffer[1] == 0) and
+ * that CTS is set before returning, otherwise we wait and try
+ * again. The i2c driver also does the CTS check, but the timeouts
+ * used there are much too small for this USB driver, so we wait
+ * for it here.
+ */
+ if (radio->buffer[1] == 0 && (radio->buffer[2] & SI4713_CTS)) {
+ memcpy(data, radio->buffer + 2, len);
+ return 0;
+ }
+ if (time_is_before_jiffies(until_jiffies)) {
+ /* Zero the status value, ensuring CTS isn't set */
+ data[0] = 0;
+ return 0;
+ }
+ msleep(3);
+ }
+}
+
+static int si4713_i2c_write(struct si4713_usb_device *radio, char *data, int len)
+{
+ int retval = -EINVAL;
+ int i;
+
+ if (len > BUFFER_LENGTH - 5)
+ return -EINVAL;
+
+ for (i = 0; i < ARRAY_SIZE(command_table); i++) {
+ if (data[0] == command_table[i].command_id)
+ retval = send_command(radio, command_table[i].payload,
+ data, len);
+ }
+
+ return retval < 0 ? retval : 0;
+}
+
+static int si4713_transfer(struct i2c_adapter *i2c_adapter,
+ struct i2c_msg *msgs, int num)
+{
+ struct si4713_usb_device *radio = i2c_get_adapdata(i2c_adapter);
+ int retval = -EINVAL;
+ int i;
+
+ for (i = 0; i < num; i++) {
+ if (msgs[i].flags & I2C_M_RD)
+ retval = si4713_i2c_read(radio, msgs[i].buf, msgs[i].len);
+ else
+ retval = si4713_i2c_write(radio, msgs[i].buf, msgs[i].len);
+ if (retval)
+ break;
+ }
+
+ return retval ? retval : num;
+}
+
+static u32 si4713_functionality(struct i2c_adapter *adapter)
+{
+ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static const struct i2c_algorithm si4713_algo = {
+ .master_xfer = si4713_transfer,
+ .functionality = si4713_functionality,
+};
+
+/* This name value shows up in the sysfs filename associated
+ with this I2C adapter */
+static const struct i2c_adapter si4713_i2c_adapter_template = {
+ .name = "si4713-i2c",
+ .owner = THIS_MODULE,
+ .algo = &si4713_algo,
+};
+
+static int si4713_register_i2c_adapter(struct si4713_usb_device *radio)
+{
+ radio->i2c_adapter = si4713_i2c_adapter_template;
+ /* set up sysfs linkage to our parent device */
+ radio->i2c_adapter.dev.parent = &radio->usbdev->dev;
+ i2c_set_adapdata(&radio->i2c_adapter, radio);
+
+ return i2c_add_adapter(&radio->i2c_adapter);
+}
+
+/* check if the device is present and register with v4l and usb if it is */
+static int usb_si4713_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct si4713_usb_device *radio;
+ struct i2c_adapter *adapter;
+ struct v4l2_subdev *sd;
+ int retval;
+
+ dev_info(&intf->dev, "Si4713 development board discovered: (%04X:%04X)\n",
+ id->idVendor, id->idProduct);
+
+ /* Initialize local device structure */
+ radio = kzalloc(sizeof(struct si4713_usb_device), GFP_KERNEL);
+ if (radio)
+ radio->buffer = kmalloc(BUFFER_LENGTH, GFP_KERNEL);
+
+ if (!radio || !radio->buffer) {
+ dev_err(&intf->dev, "kmalloc for si4713_usb_device failed\n");
+ kfree(radio);
+ return -ENOMEM;
+ }
+
+ mutex_init(&radio->lock);
+
+ radio->usbdev = interface_to_usbdev(intf);
+ radio->intf = intf;
+ usb_set_intfdata(intf, &radio->v4l2_dev);
+
+ retval = si4713_start_seq(radio);
+ if (retval < 0)
+ goto err_v4l2;
+
+ retval = v4l2_device_register(&intf->dev, &radio->v4l2_dev);
+ if (retval < 0) {
+ dev_err(&intf->dev, "couldn't register v4l2_device\n");
+ goto err_v4l2;
+ }
+
+ retval = si4713_register_i2c_adapter(radio);
+ if (retval < 0) {
+ dev_err(&intf->dev, "could not register i2c device\n");
+ goto err_i2cdev;
+ }
+
+ adapter = &radio->i2c_adapter;
+ sd = v4l2_i2c_new_subdev_board(&radio->v4l2_dev, adapter,
+ &si4713_board_info, NULL);
+ radio->v4l2_subdev = sd;
+ if (!sd) {
+ dev_err(&intf->dev, "cannot get v4l2 subdevice\n");
+ retval = -ENODEV;
+ goto del_adapter;
+ }
+
+ radio->vdev.ctrl_handler = sd->ctrl_handler;
+ radio->v4l2_dev.release = usb_si4713_video_device_release;
+ strscpy(radio->vdev.name, radio->v4l2_dev.name,
+ sizeof(radio->vdev.name));
+ radio->vdev.v4l2_dev = &radio->v4l2_dev;
+ radio->vdev.fops = &usb_si4713_fops;
+ radio->vdev.ioctl_ops = &usb_si4713_ioctl_ops;
+ radio->vdev.lock = &radio->lock;
+ radio->vdev.release = video_device_release_empty;
+ radio->vdev.vfl_dir = VFL_DIR_TX;
+ radio->vdev.device_caps = V4L2_CAP_MODULATOR | V4L2_CAP_RDS_OUTPUT;
+
+ video_set_drvdata(&radio->vdev, radio);
+
+ retval = video_register_device(&radio->vdev, VFL_TYPE_RADIO, -1);
+ if (retval < 0) {
+ dev_err(&intf->dev, "could not register video device\n");
+ goto del_adapter;
+ }
+
+ dev_info(&intf->dev, "V4L2 device registered as %s\n",
+ video_device_node_name(&radio->vdev));
+
+ return 0;
+
+del_adapter:
+ i2c_del_adapter(adapter);
+err_i2cdev:
+ v4l2_device_unregister(&radio->v4l2_dev);
+err_v4l2:
+ kfree(radio->buffer);
+ kfree(radio);
+ return retval;
+}
+
+static void usb_si4713_disconnect(struct usb_interface *intf)
+{
+ struct si4713_usb_device *radio = to_si4713_dev(usb_get_intfdata(intf));
+
+ dev_info(&intf->dev, "Si4713 development board now disconnected\n");
+
+ mutex_lock(&radio->lock);
+ usb_set_intfdata(intf, NULL);
+ video_unregister_device(&radio->vdev);
+ v4l2_device_disconnect(&radio->v4l2_dev);
+ mutex_unlock(&radio->lock);
+ v4l2_device_put(&radio->v4l2_dev);
+}
+
+/* USB subsystem interface */
+static struct usb_driver usb_si4713_driver = {
+ .name = "radio-usb-si4713",
+ .probe = usb_si4713_probe,
+ .disconnect = usb_si4713_disconnect,
+ .id_table = usb_si4713_usb_device_table,
+};
+
+module_usb_driver(usb_si4713_driver);
diff --git a/drivers/media/radio/si4713/si4713.c b/drivers/media/radio/si4713/si4713.c
new file mode 100644
index 000000000..93d847c29
--- /dev/null
+++ b/drivers/media/radio/si4713/si4713.c
@@ -0,0 +1,1665 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * drivers/media/radio/si4713-i2c.c
+ *
+ * Silicon Labs Si4713 FM Radio Transmitter I2C commands.
+ *
+ * Copyright (c) 2009 Nokia Corporation
+ * Contact: Eduardo Valentin <eduardo.valentin@nokia.com>
+ */
+
+#include <linux/completion.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-common.h>
+
+#include "si4713.h"
+
+/* module parameters */
+static int debug;
+module_param(debug, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(debug, "Debug level (0 - 2)");
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Eduardo Valentin <eduardo.valentin@nokia.com>");
+MODULE_DESCRIPTION("I2C driver for Si4713 FM Radio Transmitter");
+MODULE_VERSION("0.0.1");
+
+#define DEFAULT_RDS_PI 0x00
+#define DEFAULT_RDS_PTY 0x00
+#define DEFAULT_RDS_DEVIATION 0x00C8
+#define DEFAULT_RDS_PS_REPEAT_COUNT 0x0003
+#define DEFAULT_LIMITER_RTIME 0x1392
+#define DEFAULT_LIMITER_DEV 0x102CA
+#define DEFAULT_PILOT_FREQUENCY 0x4A38
+#define DEFAULT_PILOT_DEVIATION 0x1A5E
+#define DEFAULT_ACOMP_ATIME 0x0000
+#define DEFAULT_ACOMP_RTIME 0xF4240L
+#define DEFAULT_ACOMP_GAIN 0x0F
+#define DEFAULT_ACOMP_THRESHOLD (-0x28)
+#define DEFAULT_MUTE 0x01
+#define DEFAULT_POWER_LEVEL 88
+#define DEFAULT_FREQUENCY 8800
+#define DEFAULT_PREEMPHASIS FMPE_EU
+#define DEFAULT_TUNE_RNL 0xFF
+
+#define to_si4713_device(sd) container_of(sd, struct si4713_device, sd)
+
+/* frequency domain transformation (using times 10 to avoid floats) */
+#define FREQDEV_UNIT 100000
+#define FREQV4L2_MULTI 625
+#define si4713_to_v4l2(f) ((f * FREQDEV_UNIT) / FREQV4L2_MULTI)
+#define v4l2_to_si4713(f) ((f * FREQV4L2_MULTI) / FREQDEV_UNIT)
+#define FREQ_RANGE_LOW 7600
+#define FREQ_RANGE_HIGH 10800
+
+#define MAX_ARGS 7
+
+#define RDS_BLOCK 8
+#define RDS_BLOCK_CLEAR 0x03
+#define RDS_BLOCK_LOAD 0x04
+#define RDS_RADIOTEXT_2A 0x20
+#define RDS_RADIOTEXT_BLK_SIZE 4
+#define RDS_RADIOTEXT_INDEX_MAX 0x0F
+#define RDS_CARRIAGE_RETURN 0x0D
+
+#define rds_ps_nblocks(len) ((len / RDS_BLOCK) + (len % RDS_BLOCK ? 1 : 0))
+
+#define get_status_bit(p, b, m) (((p) & (m)) >> (b))
+#define set_bits(p, v, b, m) (((p) & ~(m)) | ((v) << (b)))
+
+#define ATTACK_TIME_UNIT 500
+
+#define POWER_OFF 0x00
+#define POWER_ON 0x01
+
+#define msb(x) ((u8)((u16) x >> 8))
+#define lsb(x) ((u8)((u16) x & 0x00FF))
+#define compose_u16(msb, lsb) (((u16)msb << 8) | lsb)
+#define check_command_failed(status) (!(status & SI4713_CTS) || \
+ (status & SI4713_ERR))
+/* mute definition */
+#define set_mute(p) (((p) & 1) | (((p) & 1) << 1))
+
+#ifdef DEBUG
+#define DBG_BUFFER(device, message, buffer, size) \
+ { \
+ int i; \
+ char str[(size)*5]; \
+ for (i = 0; i < size; i++) \
+ sprintf(str + i * 5, " 0x%02x", buffer[i]); \
+ v4l2_dbg(2, debug, device, "%s:%s\n", message, str); \
+ }
+#else
+#define DBG_BUFFER(device, message, buffer, size)
+#endif
+
+/*
+ * Values for limiter release time (sorted by second column)
+ * device release
+ * value time (us)
+ */
+static long limiter_times[] = {
+ 2000, 250,
+ 1000, 500,
+ 510, 1000,
+ 255, 2000,
+ 170, 3000,
+ 127, 4020,
+ 102, 5010,
+ 85, 6020,
+ 73, 7010,
+ 64, 7990,
+ 57, 8970,
+ 51, 10030,
+ 25, 20470,
+ 17, 30110,
+ 13, 39380,
+ 10, 51190,
+ 8, 63690,
+ 7, 73140,
+ 6, 85330,
+ 5, 102390,
+};
+
+/*
+ * Values for audio compression release time (sorted by second column)
+ * device release
+ * value time (us)
+ */
+static unsigned long acomp_rtimes[] = {
+ 0, 100000,
+ 1, 200000,
+ 2, 350000,
+ 3, 525000,
+ 4, 1000000,
+};
+
+/*
+ * Values for preemphasis (sorted by second column)
+ * device preemphasis
+ * value value (v4l2)
+ */
+static unsigned long preemphasis_values[] = {
+ FMPE_DISABLED, V4L2_PREEMPHASIS_DISABLED,
+ FMPE_EU, V4L2_PREEMPHASIS_50_uS,
+ FMPE_USA, V4L2_PREEMPHASIS_75_uS,
+};
+
+static int usecs_to_dev(unsigned long usecs, unsigned long const array[],
+ int size)
+{
+ int i;
+ int rval = -EINVAL;
+
+ for (i = 0; i < size / 2; i++)
+ if (array[(i * 2) + 1] >= usecs) {
+ rval = array[i * 2];
+ break;
+ }
+
+ return rval;
+}
+
+/* si4713_handler: IRQ handler, just complete work */
+static irqreturn_t si4713_handler(int irq, void *dev)
+{
+ struct si4713_device *sdev = dev;
+
+ v4l2_dbg(2, debug, &sdev->sd,
+ "%s: sending signal to completion work.\n", __func__);
+ complete(&sdev->work);
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * si4713_send_command - sends a command to si4713 and waits its response
+ * @sdev: si4713_device structure for the device we are communicating
+ * @command: command id
+ * @args: command arguments we are sending (up to 7)
+ * @argn: actual size of @args
+ * @response: buffer to place the expected response from the device (up to 15)
+ * @respn: actual size of @response
+ * @usecs: amount of time to wait before reading the response (in usecs)
+ */
+static int si4713_send_command(struct si4713_device *sdev, const u8 command,
+ const u8 args[], const int argn,
+ u8 response[], const int respn, const int usecs)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd);
+ unsigned long until_jiffies;
+ u8 data1[MAX_ARGS + 1];
+ int err;
+
+ if (!client->adapter)
+ return -ENODEV;
+
+ /* First send the command and its arguments */
+ data1[0] = command;
+ memcpy(data1 + 1, args, argn);
+ DBG_BUFFER(&sdev->sd, "Parameters", data1, argn + 1);
+
+ err = i2c_master_send(client, data1, argn + 1);
+ if (err != argn + 1) {
+ v4l2_err(&sdev->sd, "Error while sending command 0x%02x\n",
+ command);
+ return err < 0 ? err : -EIO;
+ }
+
+ until_jiffies = jiffies + usecs_to_jiffies(usecs) + 1;
+
+ /* Wait response from interrupt */
+ if (client->irq) {
+ if (!wait_for_completion_timeout(&sdev->work,
+ usecs_to_jiffies(usecs) + 1))
+ v4l2_warn(&sdev->sd,
+ "(%s) Device took too much time to answer.\n",
+ __func__);
+ }
+
+ do {
+ err = i2c_master_recv(client, response, respn);
+ if (err != respn) {
+ v4l2_err(&sdev->sd,
+ "Error %d while reading response for command 0x%02x\n",
+ err, command);
+ return err < 0 ? err : -EIO;
+ }
+
+ DBG_BUFFER(&sdev->sd, "Response", response, respn);
+ if (!check_command_failed(response[0]))
+ return 0;
+
+ if (client->irq)
+ return -EBUSY;
+ if (usecs <= 1000)
+ usleep_range(usecs, 1000);
+ else
+ usleep_range(1000, 2000);
+ } while (time_is_after_jiffies(until_jiffies));
+
+ return -EBUSY;
+}
+
+/*
+ * si4713_read_property - reads a si4713 property
+ * @sdev: si4713_device structure for the device we are communicating
+ * @prop: property identification number
+ * @pv: property value to be returned on success
+ */
+static int si4713_read_property(struct si4713_device *sdev, u16 prop, u32 *pv)
+{
+ int err;
+ u8 val[SI4713_GET_PROP_NRESP];
+ /*
+ * .First byte = 0
+ * .Second byte = property's MSB
+ * .Third byte = property's LSB
+ */
+ const u8 args[SI4713_GET_PROP_NARGS] = {
+ 0x00,
+ msb(prop),
+ lsb(prop),
+ };
+
+ err = si4713_send_command(sdev, SI4713_CMD_GET_PROPERTY,
+ args, ARRAY_SIZE(args), val,
+ ARRAY_SIZE(val), DEFAULT_TIMEOUT);
+
+ if (err < 0)
+ return err;
+
+ *pv = compose_u16(val[2], val[3]);
+
+ v4l2_dbg(1, debug, &sdev->sd,
+ "%s: property=0x%02x value=0x%02x status=0x%02x\n",
+ __func__, prop, *pv, val[0]);
+
+ return err;
+}
+
+/*
+ * si4713_write_property - modifies a si4713 property
+ * @sdev: si4713_device structure for the device we are communicating
+ * @prop: property identification number
+ * @val: new value for that property
+ */
+static int si4713_write_property(struct si4713_device *sdev, u16 prop, u16 val)
+{
+ int rval;
+ u8 resp[SI4713_SET_PROP_NRESP];
+ /*
+ * .First byte = 0
+ * .Second byte = property's MSB
+ * .Third byte = property's LSB
+ * .Fourth byte = value's MSB
+ * .Fifth byte = value's LSB
+ */
+ const u8 args[SI4713_SET_PROP_NARGS] = {
+ 0x00,
+ msb(prop),
+ lsb(prop),
+ msb(val),
+ lsb(val),
+ };
+
+ rval = si4713_send_command(sdev, SI4713_CMD_SET_PROPERTY,
+ args, ARRAY_SIZE(args),
+ resp, ARRAY_SIZE(resp),
+ DEFAULT_TIMEOUT);
+
+ if (rval < 0)
+ return rval;
+
+ v4l2_dbg(1, debug, &sdev->sd,
+ "%s: property=0x%02x value=0x%02x status=0x%02x\n",
+ __func__, prop, val, resp[0]);
+
+ /*
+ * As there is no command response for SET_PROPERTY,
+ * wait Tcomp time to finish before proceed, in order
+ * to have property properly set.
+ */
+ msleep(TIMEOUT_SET_PROPERTY);
+
+ return rval;
+}
+
+/*
+ * si4713_powerup - Powers the device up
+ * @sdev: si4713_device structure for the device we are communicating
+ */
+static int si4713_powerup(struct si4713_device *sdev)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd);
+ int err;
+ u8 resp[SI4713_PWUP_NRESP];
+ /*
+ * .First byte = Enabled interrupts and boot function
+ * .Second byte = Input operation mode
+ */
+ u8 args[SI4713_PWUP_NARGS] = {
+ SI4713_PWUP_GPO2OEN | SI4713_PWUP_FUNC_TX,
+ SI4713_PWUP_OPMOD_ANALOG,
+ };
+
+ if (sdev->power_state)
+ return 0;
+
+ if (sdev->vdd) {
+ err = regulator_enable(sdev->vdd);
+ if (err) {
+ v4l2_err(&sdev->sd, "Failed to enable vdd: %d\n", err);
+ return err;
+ }
+ }
+
+ if (sdev->vio) {
+ err = regulator_enable(sdev->vio);
+ if (err) {
+ v4l2_err(&sdev->sd, "Failed to enable vio: %d\n", err);
+ return err;
+ }
+ }
+
+ if (sdev->gpio_reset) {
+ udelay(50);
+ gpiod_set_value(sdev->gpio_reset, 1);
+ }
+
+ if (client->irq)
+ args[0] |= SI4713_PWUP_CTSIEN;
+
+ err = si4713_send_command(sdev, SI4713_CMD_POWER_UP,
+ args, ARRAY_SIZE(args),
+ resp, ARRAY_SIZE(resp),
+ TIMEOUT_POWER_UP);
+
+ if (!err) {
+ v4l2_dbg(1, debug, &sdev->sd, "Powerup response: 0x%02x\n",
+ resp[0]);
+ v4l2_dbg(1, debug, &sdev->sd, "Device in power up mode\n");
+ sdev->power_state = POWER_ON;
+
+ if (client->irq)
+ err = si4713_write_property(sdev, SI4713_GPO_IEN,
+ SI4713_STC_INT | SI4713_CTS);
+ return err;
+ }
+ gpiod_set_value(sdev->gpio_reset, 0);
+
+
+ if (sdev->vdd) {
+ err = regulator_disable(sdev->vdd);
+ if (err)
+ v4l2_err(&sdev->sd, "Failed to disable vdd: %d\n", err);
+ }
+
+ if (sdev->vio) {
+ err = regulator_disable(sdev->vio);
+ if (err)
+ v4l2_err(&sdev->sd, "Failed to disable vio: %d\n", err);
+ }
+
+ return err;
+}
+
+/*
+ * si4713_powerdown - Powers the device down
+ * @sdev: si4713_device structure for the device we are communicating
+ */
+static int si4713_powerdown(struct si4713_device *sdev)
+{
+ int err;
+ u8 resp[SI4713_PWDN_NRESP];
+
+ if (!sdev->power_state)
+ return 0;
+
+ err = si4713_send_command(sdev, SI4713_CMD_POWER_DOWN,
+ NULL, 0,
+ resp, ARRAY_SIZE(resp),
+ DEFAULT_TIMEOUT);
+
+ if (!err) {
+ v4l2_dbg(1, debug, &sdev->sd, "Power down response: 0x%02x\n",
+ resp[0]);
+ v4l2_dbg(1, debug, &sdev->sd, "Device in reset mode\n");
+ if (sdev->gpio_reset)
+ gpiod_set_value(sdev->gpio_reset, 0);
+
+ if (sdev->vdd) {
+ err = regulator_disable(sdev->vdd);
+ if (err) {
+ v4l2_err(&sdev->sd,
+ "Failed to disable vdd: %d\n", err);
+ }
+ }
+
+ if (sdev->vio) {
+ err = regulator_disable(sdev->vio);
+ if (err) {
+ v4l2_err(&sdev->sd,
+ "Failed to disable vio: %d\n", err);
+ }
+ }
+ sdev->power_state = POWER_OFF;
+ }
+
+ return err;
+}
+
+/*
+ * si4713_checkrev - Checks if we are treating a device with the correct rev.
+ * @sdev: si4713_device structure for the device we are communicating
+ */
+static int si4713_checkrev(struct si4713_device *sdev)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd);
+ int rval;
+ u8 resp[SI4713_GETREV_NRESP];
+
+ rval = si4713_send_command(sdev, SI4713_CMD_GET_REV,
+ NULL, 0,
+ resp, ARRAY_SIZE(resp),
+ DEFAULT_TIMEOUT);
+
+ if (rval < 0)
+ return rval;
+
+ if (resp[1] == SI4713_PRODUCT_NUMBER) {
+ v4l2_info(&sdev->sd, "chip found @ 0x%02x (%s)\n",
+ client->addr << 1, client->adapter->name);
+ } else {
+ v4l2_err(&sdev->sd, "Invalid product number 0x%X\n", resp[1]);
+ rval = -EINVAL;
+ }
+ return rval;
+}
+
+/*
+ * si4713_wait_stc - Waits STC interrupt and clears status bits. Useful
+ * for TX_TUNE_POWER, TX_TUNE_FREQ and TX_TUNE_MEAS
+ * @sdev: si4713_device structure for the device we are communicating
+ * @usecs: timeout to wait for STC interrupt signal
+ */
+static int si4713_wait_stc(struct si4713_device *sdev, const int usecs)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd);
+ u8 resp[SI4713_GET_STATUS_NRESP];
+ unsigned long start_jiffies = jiffies;
+ int err;
+
+ if (client->irq &&
+ !wait_for_completion_timeout(&sdev->work, usecs_to_jiffies(usecs) + 1))
+ v4l2_warn(&sdev->sd,
+ "(%s) Device took too much time to answer.\n", __func__);
+
+ for (;;) {
+ /* Clear status bits */
+ err = si4713_send_command(sdev, SI4713_CMD_GET_INT_STATUS,
+ NULL, 0,
+ resp, ARRAY_SIZE(resp),
+ DEFAULT_TIMEOUT);
+ /* The USB device returns errors when it waits for the
+ * STC bit to be set. Hence polling */
+ if (err >= 0) {
+ v4l2_dbg(1, debug, &sdev->sd,
+ "%s: status bits: 0x%02x\n", __func__, resp[0]);
+
+ if (resp[0] & SI4713_STC_INT)
+ return 0;
+ }
+ if (jiffies_to_usecs(jiffies - start_jiffies) > usecs)
+ return err < 0 ? err : -EIO;
+ /* We sleep here for 3-4 ms in order to avoid flooding the device
+ * with USB requests. The si4713 USB driver was developed
+ * by reverse engineering the Windows USB driver. The windows
+ * driver also has a ~2.5 ms delay between responses. */
+ usleep_range(3000, 4000);
+ }
+}
+
+/*
+ * si4713_tx_tune_freq - Sets the state of the RF carrier and sets the tuning
+ * frequency between 76 and 108 MHz in 10 kHz units and
+ * steps of 50 kHz.
+ * @sdev: si4713_device structure for the device we are communicating
+ * @frequency: desired frequency (76 - 108 MHz, unit 10 KHz, step 50 kHz)
+ */
+static int si4713_tx_tune_freq(struct si4713_device *sdev, u16 frequency)
+{
+ int err;
+ u8 val[SI4713_TXFREQ_NRESP];
+ /*
+ * .First byte = 0
+ * .Second byte = frequency's MSB
+ * .Third byte = frequency's LSB
+ */
+ const u8 args[SI4713_TXFREQ_NARGS] = {
+ 0x00,
+ msb(frequency),
+ lsb(frequency),
+ };
+
+ err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_FREQ,
+ args, ARRAY_SIZE(args), val,
+ ARRAY_SIZE(val), DEFAULT_TIMEOUT);
+
+ if (err < 0)
+ return err;
+
+ v4l2_dbg(1, debug, &sdev->sd,
+ "%s: frequency=0x%02x status=0x%02x\n", __func__,
+ frequency, val[0]);
+
+ err = si4713_wait_stc(sdev, TIMEOUT_TX_TUNE);
+ if (err < 0)
+ return err;
+
+ return compose_u16(args[1], args[2]);
+}
+
+/*
+ * si4713_tx_tune_power - Sets the RF voltage level between 88 and 120 dBuV in
+ * 1 dB units. A value of 0x00 indicates off. The command
+ * also sets the antenna tuning capacitance. A value of 0
+ * indicates autotuning, and a value of 1 - 191 indicates
+ * a manual override, which results in a tuning
+ * capacitance of 0.25 pF x @antcap.
+ * @sdev: si4713_device structure for the device we are communicating
+ * @power: tuning power (88 - 120 dBuV, unit/step 1 dB)
+ * @antcap: value of antenna tuning capacitor (0 - 191)
+ */
+static int si4713_tx_tune_power(struct si4713_device *sdev, u8 power,
+ u8 antcap)
+{
+ int err;
+ u8 val[SI4713_TXPWR_NRESP];
+ /*
+ * .First byte = 0
+ * .Second byte = 0
+ * .Third byte = power
+ * .Fourth byte = antcap
+ */
+ u8 args[SI4713_TXPWR_NARGS] = {
+ 0x00,
+ 0x00,
+ power,
+ antcap,
+ };
+
+ /* Map power values 1-87 to MIN_POWER (88) */
+ if (power > 0 && power < SI4713_MIN_POWER)
+ args[2] = power = SI4713_MIN_POWER;
+
+ err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_POWER,
+ args, ARRAY_SIZE(args), val,
+ ARRAY_SIZE(val), DEFAULT_TIMEOUT);
+
+ if (err < 0)
+ return err;
+
+ v4l2_dbg(1, debug, &sdev->sd,
+ "%s: power=0x%02x antcap=0x%02x status=0x%02x\n",
+ __func__, power, antcap, val[0]);
+
+ return si4713_wait_stc(sdev, TIMEOUT_TX_TUNE_POWER);
+}
+
+/*
+ * si4713_tx_tune_measure - Enters receive mode and measures the received noise
+ * level in units of dBuV on the selected frequency.
+ * The Frequency must be between 76 and 108 MHz in 10 kHz
+ * units and steps of 50 kHz. The command also sets the
+ * antenna tuning capacitance. A value of 0 means
+ * autotuning, and a value of 1 to 191 indicates manual
+ * override.
+ * @sdev: si4713_device structure for the device we are communicating
+ * @frequency: desired frequency (76 - 108 MHz, unit 10 KHz, step 50 kHz)
+ * @antcap: value of antenna tuning capacitor (0 - 191)
+ */
+static int si4713_tx_tune_measure(struct si4713_device *sdev, u16 frequency,
+ u8 antcap)
+{
+ int err;
+ u8 val[SI4713_TXMEA_NRESP];
+ /*
+ * .First byte = 0
+ * .Second byte = frequency's MSB
+ * .Third byte = frequency's LSB
+ * .Fourth byte = antcap
+ */
+ const u8 args[SI4713_TXMEA_NARGS] = {
+ 0x00,
+ msb(frequency),
+ lsb(frequency),
+ antcap,
+ };
+
+ sdev->tune_rnl = DEFAULT_TUNE_RNL;
+
+ if (antcap > SI4713_MAX_ANTCAP)
+ return -EDOM;
+
+ err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_MEASURE,
+ args, ARRAY_SIZE(args), val,
+ ARRAY_SIZE(val), DEFAULT_TIMEOUT);
+
+ if (err < 0)
+ return err;
+
+ v4l2_dbg(1, debug, &sdev->sd,
+ "%s: frequency=0x%02x antcap=0x%02x status=0x%02x\n",
+ __func__, frequency, antcap, val[0]);
+
+ return si4713_wait_stc(sdev, TIMEOUT_TX_TUNE);
+}
+
+/*
+ * si4713_tx_tune_status- Returns the status of the tx_tune_freq, tx_tune_mea or
+ * tx_tune_power commands. This command return the current
+ * frequency, output voltage in dBuV, the antenna tunning
+ * capacitance value and the received noise level. The
+ * command also clears the stcint interrupt bit when the
+ * first bit of its arguments is high.
+ * @sdev: si4713_device structure for the device we are communicating
+ * @intack: 0x01 to clear the seek/tune complete interrupt status indicator.
+ * @frequency: returned frequency
+ * @power: returned power
+ * @antcap: returned antenna capacitance
+ * @noise: returned noise level
+ */
+static int si4713_tx_tune_status(struct si4713_device *sdev, u8 intack,
+ u16 *frequency, u8 *power,
+ u8 *antcap, u8 *noise)
+{
+ int err;
+ u8 val[SI4713_TXSTATUS_NRESP];
+ /*
+ * .First byte = intack bit
+ */
+ const u8 args[SI4713_TXSTATUS_NARGS] = {
+ intack & SI4713_INTACK_MASK,
+ };
+
+ err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_STATUS,
+ args, ARRAY_SIZE(args), val,
+ ARRAY_SIZE(val), DEFAULT_TIMEOUT);
+
+ if (!err) {
+ v4l2_dbg(1, debug, &sdev->sd,
+ "%s: status=0x%02x\n", __func__, val[0]);
+ *frequency = compose_u16(val[2], val[3]);
+ sdev->frequency = *frequency;
+ *power = val[5];
+ *antcap = val[6];
+ *noise = val[7];
+ v4l2_dbg(1, debug, &sdev->sd,
+ "%s: response: %d x 10 kHz (power %d, antcap %d, rnl %d)\n",
+ __func__, *frequency, *power, *antcap, *noise);
+ }
+
+ return err;
+}
+
+/*
+ * si4713_tx_rds_buff - Loads the RDS group buffer FIFO or circular buffer.
+ * @sdev: si4713_device structure for the device we are communicating
+ * @mode: the buffer operation mode.
+ * @rdsb: RDS Block B
+ * @rdsc: RDS Block C
+ * @rdsd: RDS Block D
+ * @cbleft: returns the number of available circular buffer blocks minus the
+ * number of used circular buffer blocks.
+ */
+static int si4713_tx_rds_buff(struct si4713_device *sdev, u8 mode, u16 rdsb,
+ u16 rdsc, u16 rdsd, s8 *cbleft)
+{
+ int err;
+ u8 val[SI4713_RDSBUFF_NRESP];
+
+ const u8 args[SI4713_RDSBUFF_NARGS] = {
+ mode & SI4713_RDSBUFF_MODE_MASK,
+ msb(rdsb),
+ lsb(rdsb),
+ msb(rdsc),
+ lsb(rdsc),
+ msb(rdsd),
+ lsb(rdsd),
+ };
+
+ err = si4713_send_command(sdev, SI4713_CMD_TX_RDS_BUFF,
+ args, ARRAY_SIZE(args), val,
+ ARRAY_SIZE(val), DEFAULT_TIMEOUT);
+
+ if (!err) {
+ v4l2_dbg(1, debug, &sdev->sd,
+ "%s: status=0x%02x\n", __func__, val[0]);
+ *cbleft = (s8)val[2] - val[3];
+ v4l2_dbg(1, debug, &sdev->sd,
+ "%s: response: interrupts 0x%02x cb avail: %d cb used %d fifo avail %d fifo used %d\n",
+ __func__, val[1], val[2], val[3], val[4], val[5]);
+ }
+
+ return err;
+}
+
+/*
+ * si4713_tx_rds_ps - Loads the program service buffer.
+ * @sdev: si4713_device structure for the device we are communicating
+ * @psid: program service id to be loaded.
+ * @pschar: assumed 4 size char array to be loaded into the program service
+ */
+static int si4713_tx_rds_ps(struct si4713_device *sdev, u8 psid,
+ unsigned char *pschar)
+{
+ int err;
+ u8 val[SI4713_RDSPS_NRESP];
+
+ const u8 args[SI4713_RDSPS_NARGS] = {
+ psid & SI4713_RDSPS_PSID_MASK,
+ pschar[0],
+ pschar[1],
+ pschar[2],
+ pschar[3],
+ };
+
+ err = si4713_send_command(sdev, SI4713_CMD_TX_RDS_PS,
+ args, ARRAY_SIZE(args), val,
+ ARRAY_SIZE(val), DEFAULT_TIMEOUT);
+
+ if (err < 0)
+ return err;
+
+ v4l2_dbg(1, debug, &sdev->sd, "%s: status=0x%02x\n", __func__, val[0]);
+
+ return err;
+}
+
+static int si4713_set_power_state(struct si4713_device *sdev, u8 value)
+{
+ if (value)
+ return si4713_powerup(sdev);
+ return si4713_powerdown(sdev);
+}
+
+static int si4713_set_mute(struct si4713_device *sdev, u16 mute)
+{
+ int rval = 0;
+
+ mute = set_mute(mute);
+
+ if (sdev->power_state)
+ rval = si4713_write_property(sdev,
+ SI4713_TX_LINE_INPUT_MUTE, mute);
+
+ return rval;
+}
+
+static int si4713_set_rds_ps_name(struct si4713_device *sdev, char *ps_name)
+{
+ int rval = 0, i;
+ u8 len = 0;
+
+ /* We want to clear the whole thing */
+ if (!strlen(ps_name))
+ memset(ps_name, 0, MAX_RDS_PS_NAME + 1);
+
+ if (sdev->power_state) {
+ /* Write the new ps name and clear the padding */
+ for (i = 0; i < MAX_RDS_PS_NAME; i += (RDS_BLOCK / 2)) {
+ rval = si4713_tx_rds_ps(sdev, (i / (RDS_BLOCK / 2)),
+ ps_name + i);
+ if (rval < 0)
+ return rval;
+ }
+
+ /* Setup the size to be sent */
+ if (strlen(ps_name))
+ len = strlen(ps_name) - 1;
+ else
+ len = 1;
+
+ rval = si4713_write_property(sdev,
+ SI4713_TX_RDS_PS_MESSAGE_COUNT,
+ rds_ps_nblocks(len));
+ if (rval < 0)
+ return rval;
+
+ rval = si4713_write_property(sdev,
+ SI4713_TX_RDS_PS_REPEAT_COUNT,
+ DEFAULT_RDS_PS_REPEAT_COUNT * 2);
+ if (rval < 0)
+ return rval;
+ }
+
+ return rval;
+}
+
+static int si4713_set_rds_radio_text(struct si4713_device *sdev, const char *rt)
+{
+ static const char cr[RDS_RADIOTEXT_BLK_SIZE] = { RDS_CARRIAGE_RETURN, 0 };
+ int rval = 0, i;
+ u16 t_index = 0;
+ u8 b_index = 0, cr_inserted = 0;
+ s8 left;
+
+ if (!sdev->power_state)
+ return rval;
+
+ rval = si4713_tx_rds_buff(sdev, RDS_BLOCK_CLEAR, 0, 0, 0, &left);
+ if (rval < 0)
+ return rval;
+
+ if (!strlen(rt))
+ return rval;
+
+ do {
+ /* RDS spec says that if the last block isn't used,
+ * then apply a carriage return
+ */
+ if (t_index < (RDS_RADIOTEXT_INDEX_MAX * RDS_RADIOTEXT_BLK_SIZE)) {
+ for (i = 0; i < RDS_RADIOTEXT_BLK_SIZE; i++) {
+ if (!rt[t_index + i] ||
+ rt[t_index + i] == RDS_CARRIAGE_RETURN) {
+ rt = cr;
+ cr_inserted = 1;
+ break;
+ }
+ }
+ }
+
+ rval = si4713_tx_rds_buff(sdev, RDS_BLOCK_LOAD,
+ compose_u16(RDS_RADIOTEXT_2A, b_index++),
+ compose_u16(rt[t_index], rt[t_index + 1]),
+ compose_u16(rt[t_index + 2], rt[t_index + 3]),
+ &left);
+ if (rval < 0)
+ return rval;
+
+ t_index += RDS_RADIOTEXT_BLK_SIZE;
+
+ if (cr_inserted)
+ break;
+ } while (left > 0);
+
+ return rval;
+}
+
+/*
+ * si4713_update_tune_status - update properties from tx_tune_status
+ * command. Must be called with sdev->mutex held.
+ * @sdev: si4713_device structure for the device we are communicating
+ */
+static int si4713_update_tune_status(struct si4713_device *sdev)
+{
+ int rval;
+ u16 f = 0;
+ u8 p = 0, a = 0, n = 0;
+
+ rval = si4713_tx_tune_status(sdev, 0x00, &f, &p, &a, &n);
+
+ if (rval < 0)
+ goto exit;
+
+/* TODO: check that power_level and antenna_capacitor really are not
+ changed by the hardware. If they are, then these controls should become
+ volatiles.
+ sdev->power_level = p;
+ sdev->antenna_capacitor = a;*/
+ sdev->tune_rnl = n;
+
+exit:
+ return rval;
+}
+
+static int si4713_choose_econtrol_action(struct si4713_device *sdev, u32 id,
+ s32 *bit, s32 *mask, u16 *property, int *mul,
+ unsigned long **table, int *size)
+{
+ s32 rval = 0;
+
+ switch (id) {
+ /* FM_TX class controls */
+ case V4L2_CID_RDS_TX_PI:
+ *property = SI4713_TX_RDS_PI;
+ *mul = 1;
+ break;
+ case V4L2_CID_AUDIO_COMPRESSION_THRESHOLD:
+ *property = SI4713_TX_ACOMP_THRESHOLD;
+ *mul = 1;
+ break;
+ case V4L2_CID_AUDIO_COMPRESSION_GAIN:
+ *property = SI4713_TX_ACOMP_GAIN;
+ *mul = 1;
+ break;
+ case V4L2_CID_PILOT_TONE_FREQUENCY:
+ *property = SI4713_TX_PILOT_FREQUENCY;
+ *mul = 1;
+ break;
+ case V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME:
+ *property = SI4713_TX_ACOMP_ATTACK_TIME;
+ *mul = ATTACK_TIME_UNIT;
+ break;
+ case V4L2_CID_PILOT_TONE_DEVIATION:
+ *property = SI4713_TX_PILOT_DEVIATION;
+ *mul = 10;
+ break;
+ case V4L2_CID_AUDIO_LIMITER_DEVIATION:
+ *property = SI4713_TX_AUDIO_DEVIATION;
+ *mul = 10;
+ break;
+ case V4L2_CID_RDS_TX_DEVIATION:
+ *property = SI4713_TX_RDS_DEVIATION;
+ *mul = 1;
+ break;
+
+ case V4L2_CID_RDS_TX_PTY:
+ *property = SI4713_TX_RDS_PS_MISC;
+ *bit = 5;
+ *mask = 0x1F << 5;
+ break;
+ case V4L2_CID_RDS_TX_DYNAMIC_PTY:
+ *property = SI4713_TX_RDS_PS_MISC;
+ *bit = 15;
+ *mask = 1 << 15;
+ break;
+ case V4L2_CID_RDS_TX_COMPRESSED:
+ *property = SI4713_TX_RDS_PS_MISC;
+ *bit = 14;
+ *mask = 1 << 14;
+ break;
+ case V4L2_CID_RDS_TX_ARTIFICIAL_HEAD:
+ *property = SI4713_TX_RDS_PS_MISC;
+ *bit = 13;
+ *mask = 1 << 13;
+ break;
+ case V4L2_CID_RDS_TX_MONO_STEREO:
+ *property = SI4713_TX_RDS_PS_MISC;
+ *bit = 12;
+ *mask = 1 << 12;
+ break;
+ case V4L2_CID_RDS_TX_TRAFFIC_PROGRAM:
+ *property = SI4713_TX_RDS_PS_MISC;
+ *bit = 10;
+ *mask = 1 << 10;
+ break;
+ case V4L2_CID_RDS_TX_TRAFFIC_ANNOUNCEMENT:
+ *property = SI4713_TX_RDS_PS_MISC;
+ *bit = 4;
+ *mask = 1 << 4;
+ break;
+ case V4L2_CID_RDS_TX_MUSIC_SPEECH:
+ *property = SI4713_TX_RDS_PS_MISC;
+ *bit = 3;
+ *mask = 1 << 3;
+ break;
+ case V4L2_CID_AUDIO_LIMITER_ENABLED:
+ *property = SI4713_TX_ACOMP_ENABLE;
+ *bit = 1;
+ *mask = 1 << 1;
+ break;
+ case V4L2_CID_AUDIO_COMPRESSION_ENABLED:
+ *property = SI4713_TX_ACOMP_ENABLE;
+ *bit = 0;
+ *mask = 1 << 0;
+ break;
+ case V4L2_CID_PILOT_TONE_ENABLED:
+ *property = SI4713_TX_COMPONENT_ENABLE;
+ *bit = 0;
+ *mask = 1 << 0;
+ break;
+
+ case V4L2_CID_AUDIO_LIMITER_RELEASE_TIME:
+ *property = SI4713_TX_LIMITER_RELEASE_TIME;
+ *table = limiter_times;
+ *size = ARRAY_SIZE(limiter_times);
+ break;
+ case V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME:
+ *property = SI4713_TX_ACOMP_RELEASE_TIME;
+ *table = acomp_rtimes;
+ *size = ARRAY_SIZE(acomp_rtimes);
+ break;
+ case V4L2_CID_TUNE_PREEMPHASIS:
+ *property = SI4713_TX_PREEMPHASIS;
+ *table = preemphasis_values;
+ *size = ARRAY_SIZE(preemphasis_values);
+ break;
+
+ default:
+ rval = -EINVAL;
+ break;
+ }
+
+ return rval;
+}
+
+static int si4713_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *f);
+static int si4713_s_modulator(struct v4l2_subdev *sd, const struct v4l2_modulator *);
+/*
+ * si4713_setup - Sets the device up with current configuration.
+ * @sdev: si4713_device structure for the device we are communicating
+ */
+static int si4713_setup(struct si4713_device *sdev)
+{
+ struct v4l2_frequency f;
+ struct v4l2_modulator vm;
+ int rval;
+
+ /* Device procedure needs to set frequency first */
+ f.tuner = 0;
+ f.frequency = sdev->frequency ? sdev->frequency : DEFAULT_FREQUENCY;
+ f.frequency = si4713_to_v4l2(f.frequency);
+ rval = si4713_s_frequency(&sdev->sd, &f);
+
+ vm.index = 0;
+ if (sdev->stereo)
+ vm.txsubchans = V4L2_TUNER_SUB_STEREO;
+ else
+ vm.txsubchans = V4L2_TUNER_SUB_MONO;
+ if (sdev->rds_enabled)
+ vm.txsubchans |= V4L2_TUNER_SUB_RDS;
+ si4713_s_modulator(&sdev->sd, &vm);
+
+ return rval;
+}
+
+/*
+ * si4713_initialize - Sets the device up with default configuration.
+ * @sdev: si4713_device structure for the device we are communicating
+ */
+static int si4713_initialize(struct si4713_device *sdev)
+{
+ int rval;
+
+ rval = si4713_set_power_state(sdev, POWER_ON);
+ if (rval < 0)
+ return rval;
+
+ rval = si4713_checkrev(sdev);
+ if (rval < 0)
+ return rval;
+
+ rval = si4713_set_power_state(sdev, POWER_OFF);
+ if (rval < 0)
+ return rval;
+
+ sdev->frequency = DEFAULT_FREQUENCY;
+ sdev->stereo = 1;
+ sdev->tune_rnl = DEFAULT_TUNE_RNL;
+ return 0;
+}
+
+/* si4713_s_ctrl - set the value of a control */
+static int si4713_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct si4713_device *sdev =
+ container_of(ctrl->handler, struct si4713_device, ctrl_handler);
+ u32 val = 0;
+ s32 bit = 0, mask = 0;
+ u16 property = 0;
+ int mul = 0;
+ unsigned long *table = NULL;
+ int size = 0;
+ bool force = false;
+ int c;
+ int ret = 0;
+
+ if (ctrl->id != V4L2_CID_AUDIO_MUTE)
+ return -EINVAL;
+ if (ctrl->is_new) {
+ if (ctrl->val) {
+ ret = si4713_set_mute(sdev, ctrl->val);
+ if (!ret)
+ ret = si4713_set_power_state(sdev, POWER_DOWN);
+ return ret;
+ }
+ ret = si4713_set_power_state(sdev, POWER_UP);
+ if (!ret)
+ ret = si4713_set_mute(sdev, ctrl->val);
+ if (!ret)
+ ret = si4713_setup(sdev);
+ if (ret)
+ return ret;
+ force = true;
+ }
+
+ if (!sdev->power_state)
+ return 0;
+
+ for (c = 1; !ret && c < ctrl->ncontrols; c++) {
+ ctrl = ctrl->cluster[c];
+
+ if (!force && !ctrl->is_new)
+ continue;
+
+ switch (ctrl->id) {
+ case V4L2_CID_RDS_TX_PS_NAME:
+ ret = si4713_set_rds_ps_name(sdev, ctrl->p_new.p_char);
+ break;
+
+ case V4L2_CID_RDS_TX_RADIO_TEXT:
+ ret = si4713_set_rds_radio_text(sdev, ctrl->p_new.p_char);
+ break;
+
+ case V4L2_CID_TUNE_ANTENNA_CAPACITOR:
+ /* don't handle this control if we force setting all
+ * controls since in that case it will be handled by
+ * V4L2_CID_TUNE_POWER_LEVEL. */
+ if (force)
+ break;
+ fallthrough;
+ case V4L2_CID_TUNE_POWER_LEVEL:
+ ret = si4713_tx_tune_power(sdev,
+ sdev->tune_pwr_level->val, sdev->tune_ant_cap->val);
+ if (!ret) {
+ /* Make sure we don't set this twice */
+ sdev->tune_ant_cap->is_new = false;
+ sdev->tune_pwr_level->is_new = false;
+ }
+ break;
+
+ case V4L2_CID_RDS_TX_ALT_FREQS_ENABLE:
+ case V4L2_CID_RDS_TX_ALT_FREQS:
+ if (sdev->rds_alt_freqs_enable->val) {
+ val = sdev->rds_alt_freqs->p_new.p_u32[0];
+ val = val / 100 - 876 + 0xe101;
+ } else {
+ val = 0xe0e0;
+ }
+ ret = si4713_write_property(sdev, SI4713_TX_RDS_PS_AF, val);
+ break;
+
+ default:
+ ret = si4713_choose_econtrol_action(sdev, ctrl->id, &bit,
+ &mask, &property, &mul, &table, &size);
+ if (ret < 0)
+ break;
+
+ val = ctrl->val;
+ if (mul) {
+ val = val / mul;
+ } else if (table) {
+ ret = usecs_to_dev(val, table, size);
+ if (ret < 0)
+ break;
+ val = ret;
+ ret = 0;
+ }
+
+ if (mask) {
+ ret = si4713_read_property(sdev, property, &val);
+ if (ret < 0)
+ break;
+ val = set_bits(val, ctrl->val, bit, mask);
+ }
+
+ ret = si4713_write_property(sdev, property, val);
+ if (ret < 0)
+ break;
+ if (mask)
+ val = ctrl->val;
+ break;
+ }
+ }
+
+ return ret;
+}
+
+/* si4713_ioctl - deal with private ioctls (only rnl for now) */
+static long si4713_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
+{
+ struct si4713_device *sdev = to_si4713_device(sd);
+ struct si4713_rnl *rnl = arg;
+ u16 frequency;
+ int rval = 0;
+
+ if (!arg)
+ return -EINVAL;
+
+ switch (cmd) {
+ case SI4713_IOC_MEASURE_RNL:
+ frequency = v4l2_to_si4713(rnl->frequency);
+
+ if (sdev->power_state) {
+ /* Set desired measurement frequency */
+ rval = si4713_tx_tune_measure(sdev, frequency, 0);
+ if (rval < 0)
+ return rval;
+ /* get results from tune status */
+ rval = si4713_update_tune_status(sdev);
+ if (rval < 0)
+ return rval;
+ }
+ rnl->rnl = sdev->tune_rnl;
+ break;
+
+ default:
+ /* nothing */
+ rval = -ENOIOCTLCMD;
+ }
+
+ return rval;
+}
+
+/* si4713_g_modulator - get modulator attributes */
+static int si4713_g_modulator(struct v4l2_subdev *sd, struct v4l2_modulator *vm)
+{
+ struct si4713_device *sdev = to_si4713_device(sd);
+ int rval = 0;
+
+ if (!sdev)
+ return -ENODEV;
+
+ if (vm->index > 0)
+ return -EINVAL;
+
+ strscpy(vm->name, "FM Modulator", sizeof(vm->name));
+ vm->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LOW |
+ V4L2_TUNER_CAP_RDS | V4L2_TUNER_CAP_RDS_CONTROLS;
+
+ /* Report current frequency range limits */
+ vm->rangelow = si4713_to_v4l2(FREQ_RANGE_LOW);
+ vm->rangehigh = si4713_to_v4l2(FREQ_RANGE_HIGH);
+
+ if (sdev->power_state) {
+ u32 comp_en = 0;
+
+ rval = si4713_read_property(sdev, SI4713_TX_COMPONENT_ENABLE,
+ &comp_en);
+ if (rval < 0)
+ return rval;
+
+ sdev->stereo = get_status_bit(comp_en, 1, 1 << 1);
+ }
+
+ /* Report current audio mode: mono or stereo */
+ if (sdev->stereo)
+ vm->txsubchans = V4L2_TUNER_SUB_STEREO;
+ else
+ vm->txsubchans = V4L2_TUNER_SUB_MONO;
+
+ /* Report rds feature status */
+ if (sdev->rds_enabled)
+ vm->txsubchans |= V4L2_TUNER_SUB_RDS;
+ else
+ vm->txsubchans &= ~V4L2_TUNER_SUB_RDS;
+
+ return rval;
+}
+
+/* si4713_s_modulator - set modulator attributes */
+static int si4713_s_modulator(struct v4l2_subdev *sd, const struct v4l2_modulator *vm)
+{
+ struct si4713_device *sdev = to_si4713_device(sd);
+ int rval = 0;
+ u16 stereo, rds;
+ u32 p;
+
+ if (!sdev)
+ return -ENODEV;
+
+ if (vm->index > 0)
+ return -EINVAL;
+
+ /* Set audio mode: mono or stereo */
+ if (vm->txsubchans & V4L2_TUNER_SUB_STEREO)
+ stereo = 1;
+ else if (vm->txsubchans & V4L2_TUNER_SUB_MONO)
+ stereo = 0;
+ else
+ return -EINVAL;
+
+ rds = !!(vm->txsubchans & V4L2_TUNER_SUB_RDS);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev,
+ SI4713_TX_COMPONENT_ENABLE, &p);
+ if (rval < 0)
+ return rval;
+
+ p = set_bits(p, stereo, 1, 1 << 1);
+ p = set_bits(p, rds, 2, 1 << 2);
+
+ rval = si4713_write_property(sdev,
+ SI4713_TX_COMPONENT_ENABLE, p);
+ if (rval < 0)
+ return rval;
+ }
+
+ sdev->stereo = stereo;
+ sdev->rds_enabled = rds;
+
+ return rval;
+}
+
+/* si4713_g_frequency - get tuner or modulator radio frequency */
+static int si4713_g_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f)
+{
+ struct si4713_device *sdev = to_si4713_device(sd);
+ int rval = 0;
+
+ if (f->tuner)
+ return -EINVAL;
+
+ if (sdev->power_state) {
+ u16 freq;
+ u8 p, a, n;
+
+ rval = si4713_tx_tune_status(sdev, 0x00, &freq, &p, &a, &n);
+ if (rval < 0)
+ return rval;
+
+ sdev->frequency = freq;
+ }
+
+ f->frequency = si4713_to_v4l2(sdev->frequency);
+
+ return rval;
+}
+
+/* si4713_s_frequency - set tuner or modulator radio frequency */
+static int si4713_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *f)
+{
+ struct si4713_device *sdev = to_si4713_device(sd);
+ int rval = 0;
+ u16 frequency = v4l2_to_si4713(f->frequency);
+
+ if (f->tuner)
+ return -EINVAL;
+
+ /* Check frequency range */
+ frequency = clamp_t(u16, frequency, FREQ_RANGE_LOW, FREQ_RANGE_HIGH);
+
+ if (sdev->power_state) {
+ rval = si4713_tx_tune_freq(sdev, frequency);
+ if (rval < 0)
+ return rval;
+ frequency = rval;
+ rval = 0;
+ }
+ sdev->frequency = frequency;
+
+ return rval;
+}
+
+static const struct v4l2_ctrl_ops si4713_ctrl_ops = {
+ .s_ctrl = si4713_s_ctrl,
+};
+
+static const struct v4l2_subdev_core_ops si4713_subdev_core_ops = {
+ .ioctl = si4713_ioctl,
+};
+
+static const struct v4l2_subdev_tuner_ops si4713_subdev_tuner_ops = {
+ .g_frequency = si4713_g_frequency,
+ .s_frequency = si4713_s_frequency,
+ .g_modulator = si4713_g_modulator,
+ .s_modulator = si4713_s_modulator,
+};
+
+static const struct v4l2_subdev_ops si4713_subdev_ops = {
+ .core = &si4713_subdev_core_ops,
+ .tuner = &si4713_subdev_tuner_ops,
+};
+
+static const struct v4l2_ctrl_config si4713_alt_freqs_ctrl = {
+ .id = V4L2_CID_RDS_TX_ALT_FREQS,
+ .type = V4L2_CTRL_TYPE_U32,
+ .min = 87600,
+ .max = 107900,
+ .step = 100,
+ .def = 87600,
+ .dims = { 1 },
+ .elem_size = sizeof(u32),
+};
+
+/*
+ * I2C driver interface
+ */
+/* si4713_probe - probe for the device */
+static int si4713_probe(struct i2c_client *client)
+{
+ struct si4713_device *sdev;
+ struct v4l2_ctrl_handler *hdl;
+ struct si4713_platform_data *pdata = client->dev.platform_data;
+ struct device_node *np = client->dev.of_node;
+ struct radio_si4713_platform_data si4713_pdev_pdata;
+ struct platform_device *si4713_pdev;
+ int rval;
+
+ sdev = devm_kzalloc(&client->dev, sizeof(*sdev), GFP_KERNEL);
+ if (!sdev) {
+ dev_err(&client->dev, "Failed to alloc video device.\n");
+ rval = -ENOMEM;
+ goto exit;
+ }
+
+ sdev->gpio_reset = devm_gpiod_get_optional(&client->dev, "reset",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(sdev->gpio_reset)) {
+ rval = PTR_ERR(sdev->gpio_reset);
+ dev_err(&client->dev, "Failed to request gpio: %d\n", rval);
+ goto exit;
+ }
+
+ sdev->vdd = devm_regulator_get_optional(&client->dev, "vdd");
+ if (IS_ERR(sdev->vdd)) {
+ rval = PTR_ERR(sdev->vdd);
+ if (rval == -EPROBE_DEFER)
+ goto exit;
+
+ dev_dbg(&client->dev, "no vdd regulator found: %d\n", rval);
+ sdev->vdd = NULL;
+ }
+
+ sdev->vio = devm_regulator_get_optional(&client->dev, "vio");
+ if (IS_ERR(sdev->vio)) {
+ rval = PTR_ERR(sdev->vio);
+ if (rval == -EPROBE_DEFER)
+ goto exit;
+
+ dev_dbg(&client->dev, "no vio regulator found: %d\n", rval);
+ sdev->vio = NULL;
+ }
+
+ v4l2_i2c_subdev_init(&sdev->sd, client, &si4713_subdev_ops);
+
+ init_completion(&sdev->work);
+
+ hdl = &sdev->ctrl_handler;
+ v4l2_ctrl_handler_init(hdl, 20);
+ sdev->mute = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_AUDIO_MUTE, 0, 1, 1, DEFAULT_MUTE);
+
+ sdev->rds_pi = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_RDS_TX_PI, 0, 0xffff, 1, DEFAULT_RDS_PI);
+ sdev->rds_pty = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_RDS_TX_PTY, 0, 31, 1, DEFAULT_RDS_PTY);
+ sdev->rds_compressed = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_RDS_TX_COMPRESSED, 0, 1, 1, 0);
+ sdev->rds_art_head = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_RDS_TX_ARTIFICIAL_HEAD, 0, 1, 1, 0);
+ sdev->rds_stereo = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_RDS_TX_MONO_STEREO, 0, 1, 1, 1);
+ sdev->rds_tp = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_RDS_TX_TRAFFIC_PROGRAM, 0, 1, 1, 0);
+ sdev->rds_ta = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_RDS_TX_TRAFFIC_ANNOUNCEMENT, 0, 1, 1, 0);
+ sdev->rds_ms = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_RDS_TX_MUSIC_SPEECH, 0, 1, 1, 1);
+ sdev->rds_dyn_pty = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_RDS_TX_DYNAMIC_PTY, 0, 1, 1, 0);
+ sdev->rds_alt_freqs_enable = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_RDS_TX_ALT_FREQS_ENABLE, 0, 1, 1, 0);
+ sdev->rds_alt_freqs = v4l2_ctrl_new_custom(hdl, &si4713_alt_freqs_ctrl, NULL);
+ sdev->rds_deviation = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_RDS_TX_DEVIATION, 0, MAX_RDS_DEVIATION,
+ 10, DEFAULT_RDS_DEVIATION);
+ /*
+ * Report step as 8. From RDS spec, psname
+ * should be 8. But there are receivers which scroll strings
+ * sized as 8xN.
+ */
+ sdev->rds_ps_name = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_RDS_TX_PS_NAME, 0, MAX_RDS_PS_NAME, 8, 0);
+ /*
+ * Report step as 32 (2A block). From RDS spec,
+ * radio text should be 32 for 2A block. But there are receivers
+ * which scroll strings sized as 32xN. Setting default to 32.
+ */
+ sdev->rds_radio_text = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_RDS_TX_RADIO_TEXT, 0, MAX_RDS_RADIO_TEXT, 32, 0);
+
+ sdev->limiter_enabled = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_AUDIO_LIMITER_ENABLED, 0, 1, 1, 1);
+ sdev->limiter_release_time = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_AUDIO_LIMITER_RELEASE_TIME, 250,
+ MAX_LIMITER_RELEASE_TIME, 10, DEFAULT_LIMITER_RTIME);
+ sdev->limiter_deviation = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_AUDIO_LIMITER_DEVIATION, 0,
+ MAX_LIMITER_DEVIATION, 10, DEFAULT_LIMITER_DEV);
+
+ sdev->compression_enabled = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_AUDIO_COMPRESSION_ENABLED, 0, 1, 1, 1);
+ sdev->compression_gain = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_AUDIO_COMPRESSION_GAIN, 0, MAX_ACOMP_GAIN, 1,
+ DEFAULT_ACOMP_GAIN);
+ sdev->compression_threshold = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_AUDIO_COMPRESSION_THRESHOLD,
+ MIN_ACOMP_THRESHOLD, MAX_ACOMP_THRESHOLD, 1,
+ DEFAULT_ACOMP_THRESHOLD);
+ sdev->compression_attack_time = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME, 0,
+ MAX_ACOMP_ATTACK_TIME, 500, DEFAULT_ACOMP_ATIME);
+ sdev->compression_release_time = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME, 100000,
+ MAX_ACOMP_RELEASE_TIME, 100000, DEFAULT_ACOMP_RTIME);
+
+ sdev->pilot_tone_enabled = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_PILOT_TONE_ENABLED, 0, 1, 1, 1);
+ sdev->pilot_tone_deviation = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_PILOT_TONE_DEVIATION, 0, MAX_PILOT_DEVIATION,
+ 10, DEFAULT_PILOT_DEVIATION);
+ sdev->pilot_tone_freq = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_PILOT_TONE_FREQUENCY, 0, MAX_PILOT_FREQUENCY,
+ 1, DEFAULT_PILOT_FREQUENCY);
+
+ sdev->tune_preemphasis = v4l2_ctrl_new_std_menu(hdl, &si4713_ctrl_ops,
+ V4L2_CID_TUNE_PREEMPHASIS,
+ V4L2_PREEMPHASIS_75_uS, 0, V4L2_PREEMPHASIS_50_uS);
+ sdev->tune_pwr_level = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_TUNE_POWER_LEVEL, 0, SI4713_MAX_POWER,
+ 1, DEFAULT_POWER_LEVEL);
+ sdev->tune_ant_cap = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
+ V4L2_CID_TUNE_ANTENNA_CAPACITOR, 0, SI4713_MAX_ANTCAP,
+ 1, 0);
+
+ if (hdl->error) {
+ rval = hdl->error;
+ goto free_ctrls;
+ }
+ v4l2_ctrl_cluster(29, &sdev->mute);
+ sdev->sd.ctrl_handler = hdl;
+
+ if (client->irq) {
+ rval = devm_request_irq(&client->dev, client->irq,
+ si4713_handler, IRQF_TRIGGER_FALLING,
+ client->name, sdev);
+ if (rval < 0) {
+ v4l2_err(&sdev->sd, "Could not request IRQ\n");
+ goto free_ctrls;
+ }
+ v4l2_dbg(1, debug, &sdev->sd, "IRQ requested.\n");
+ } else {
+ v4l2_warn(&sdev->sd, "IRQ not configured. Using timeouts.\n");
+ }
+
+ rval = si4713_initialize(sdev);
+ if (rval < 0) {
+ v4l2_err(&sdev->sd, "Failed to probe device information.\n");
+ goto free_ctrls;
+ }
+
+ if (!np && (!pdata || !pdata->is_platform_device))
+ return 0;
+
+ si4713_pdev = platform_device_alloc("radio-si4713", -1);
+ if (!si4713_pdev) {
+ rval = -ENOMEM;
+ goto put_main_pdev;
+ }
+
+ si4713_pdev_pdata.subdev = client;
+ rval = platform_device_add_data(si4713_pdev, &si4713_pdev_pdata,
+ sizeof(si4713_pdev_pdata));
+ if (rval)
+ goto put_main_pdev;
+
+ rval = platform_device_add(si4713_pdev);
+ if (rval)
+ goto put_main_pdev;
+
+ sdev->pd = si4713_pdev;
+
+ return 0;
+
+put_main_pdev:
+ platform_device_put(si4713_pdev);
+ v4l2_device_unregister_subdev(&sdev->sd);
+free_ctrls:
+ v4l2_ctrl_handler_free(hdl);
+exit:
+ return rval;
+}
+
+/* si4713_remove - remove the device */
+static void si4713_remove(struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct si4713_device *sdev = to_si4713_device(sd);
+
+ platform_device_unregister(sdev->pd);
+
+ if (sdev->power_state)
+ si4713_set_power_state(sdev, POWER_DOWN);
+
+ v4l2_device_unregister_subdev(sd);
+ v4l2_ctrl_handler_free(sd->ctrl_handler);
+}
+
+/* si4713_i2c_driver - i2c driver interface */
+static const struct i2c_device_id si4713_id[] = {
+ { "si4713" , 0 },
+ { },
+};
+MODULE_DEVICE_TABLE(i2c, si4713_id);
+
+#if IS_ENABLED(CONFIG_OF)
+static const struct of_device_id si4713_of_match[] = {
+ { .compatible = "silabs,si4713" },
+ { },
+};
+MODULE_DEVICE_TABLE(of, si4713_of_match);
+#endif
+
+static struct i2c_driver si4713_i2c_driver = {
+ .driver = {
+ .name = "si4713",
+ .of_match_table = of_match_ptr(si4713_of_match),
+ },
+ .probe_new = si4713_probe,
+ .remove = si4713_remove,
+ .id_table = si4713_id,
+};
+
+module_i2c_driver(si4713_i2c_driver);
diff --git a/drivers/media/radio/si4713/si4713.h b/drivers/media/radio/si4713/si4713.h
new file mode 100644
index 000000000..29d0e1f10
--- /dev/null
+++ b/drivers/media/radio/si4713/si4713.h
@@ -0,0 +1,254 @@
+/*
+ * drivers/media/radio/si4713-i2c.h
+ *
+ * Property and commands definitions for Si4713 radio transmitter chip.
+ *
+ * Copyright (c) 2008 Instituto Nokia de Tecnologia - INdT
+ * Contact: Eduardo Valentin <eduardo.valentin@nokia.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ */
+
+#ifndef SI4713_I2C_H
+#define SI4713_I2C_H
+
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+#include <linux/gpio/consumer.h>
+#include <media/v4l2-subdev.h>
+#include <media/v4l2-ctrls.h>
+#include <linux/platform_data/media/si4713.h>
+
+#define SI4713_PRODUCT_NUMBER 0x0D
+
+/* Command Timeouts */
+#define DEFAULT_TIMEOUT 500
+#define TIMEOUT_SET_PROPERTY 20
+#define TIMEOUT_TX_TUNE_POWER 30000
+#define TIMEOUT_TX_TUNE 110000
+#define TIMEOUT_POWER_UP 200000
+
+/*
+ * Command and its arguments definitions
+ */
+#define SI4713_PWUP_CTSIEN (1<<7)
+#define SI4713_PWUP_GPO2OEN (1<<6)
+#define SI4713_PWUP_PATCH (1<<5)
+#define SI4713_PWUP_XOSCEN (1<<4)
+#define SI4713_PWUP_FUNC_TX 0x02
+#define SI4713_PWUP_FUNC_PATCH 0x0F
+#define SI4713_PWUP_OPMOD_ANALOG 0x50
+#define SI4713_PWUP_OPMOD_DIGITAL 0x0F
+#define SI4713_PWUP_NARGS 2
+#define SI4713_PWUP_NRESP 1
+#define SI4713_CMD_POWER_UP 0x01
+
+#define SI4713_GETREV_NRESP 9
+#define SI4713_CMD_GET_REV 0x10
+
+#define SI4713_PWDN_NRESP 1
+#define SI4713_CMD_POWER_DOWN 0x11
+
+#define SI4713_SET_PROP_NARGS 5
+#define SI4713_SET_PROP_NRESP 1
+#define SI4713_CMD_SET_PROPERTY 0x12
+
+#define SI4713_GET_PROP_NARGS 3
+#define SI4713_GET_PROP_NRESP 4
+#define SI4713_CMD_GET_PROPERTY 0x13
+
+#define SI4713_GET_STATUS_NRESP 1
+#define SI4713_CMD_GET_INT_STATUS 0x14
+
+#define SI4713_CMD_PATCH_ARGS 0x15
+#define SI4713_CMD_PATCH_DATA 0x16
+
+#define SI4713_MAX_FREQ 10800
+#define SI4713_MIN_FREQ 7600
+#define SI4713_TXFREQ_NARGS 3
+#define SI4713_TXFREQ_NRESP 1
+#define SI4713_CMD_TX_TUNE_FREQ 0x30
+
+#define SI4713_MAX_POWER 120
+#define SI4713_MIN_POWER 88
+#define SI4713_MAX_ANTCAP 191
+#define SI4713_MIN_ANTCAP 0
+#define SI4713_TXPWR_NARGS 4
+#define SI4713_TXPWR_NRESP 1
+#define SI4713_CMD_TX_TUNE_POWER 0x31
+
+#define SI4713_TXMEA_NARGS 4
+#define SI4713_TXMEA_NRESP 1
+#define SI4713_CMD_TX_TUNE_MEASURE 0x32
+
+#define SI4713_INTACK_MASK 0x01
+#define SI4713_TXSTATUS_NARGS 1
+#define SI4713_TXSTATUS_NRESP 8
+#define SI4713_CMD_TX_TUNE_STATUS 0x33
+
+#define SI4713_OVERMOD_BIT (1 << 2)
+#define SI4713_IALH_BIT (1 << 1)
+#define SI4713_IALL_BIT (1 << 0)
+#define SI4713_ASQSTATUS_NARGS 1
+#define SI4713_ASQSTATUS_NRESP 5
+#define SI4713_CMD_TX_ASQ_STATUS 0x34
+
+#define SI4713_RDSBUFF_MODE_MASK 0x87
+#define SI4713_RDSBUFF_NARGS 7
+#define SI4713_RDSBUFF_NRESP 6
+#define SI4713_CMD_TX_RDS_BUFF 0x35
+
+#define SI4713_RDSPS_PSID_MASK 0x1F
+#define SI4713_RDSPS_NARGS 5
+#define SI4713_RDSPS_NRESP 1
+#define SI4713_CMD_TX_RDS_PS 0x36
+
+#define SI4713_CMD_GPO_CTL 0x80
+#define SI4713_CMD_GPO_SET 0x81
+
+/*
+ * Bits from status response
+ */
+#define SI4713_CTS (1<<7)
+#define SI4713_ERR (1<<6)
+#define SI4713_RDS_INT (1<<2)
+#define SI4713_ASQ_INT (1<<1)
+#define SI4713_STC_INT (1<<0)
+
+/*
+ * Property definitions
+ */
+#define SI4713_GPO_IEN 0x0001
+#define SI4713_DIG_INPUT_FORMAT 0x0101
+#define SI4713_DIG_INPUT_SAMPLE_RATE 0x0103
+#define SI4713_REFCLK_FREQ 0x0201
+#define SI4713_REFCLK_PRESCALE 0x0202
+#define SI4713_TX_COMPONENT_ENABLE 0x2100
+#define SI4713_TX_AUDIO_DEVIATION 0x2101
+#define SI4713_TX_PILOT_DEVIATION 0x2102
+#define SI4713_TX_RDS_DEVIATION 0x2103
+#define SI4713_TX_LINE_INPUT_LEVEL 0x2104
+#define SI4713_TX_LINE_INPUT_MUTE 0x2105
+#define SI4713_TX_PREEMPHASIS 0x2106
+#define SI4713_TX_PILOT_FREQUENCY 0x2107
+#define SI4713_TX_ACOMP_ENABLE 0x2200
+#define SI4713_TX_ACOMP_THRESHOLD 0x2201
+#define SI4713_TX_ACOMP_ATTACK_TIME 0x2202
+#define SI4713_TX_ACOMP_RELEASE_TIME 0x2203
+#define SI4713_TX_ACOMP_GAIN 0x2204
+#define SI4713_TX_LIMITER_RELEASE_TIME 0x2205
+#define SI4713_TX_ASQ_INTERRUPT_SOURCE 0x2300
+#define SI4713_TX_ASQ_LEVEL_LOW 0x2301
+#define SI4713_TX_ASQ_DURATION_LOW 0x2302
+#define SI4713_TX_ASQ_LEVEL_HIGH 0x2303
+#define SI4713_TX_ASQ_DURATION_HIGH 0x2304
+#define SI4713_TX_RDS_INTERRUPT_SOURCE 0x2C00
+#define SI4713_TX_RDS_PI 0x2C01
+#define SI4713_TX_RDS_PS_MIX 0x2C02
+#define SI4713_TX_RDS_PS_MISC 0x2C03
+#define SI4713_TX_RDS_PS_REPEAT_COUNT 0x2C04
+#define SI4713_TX_RDS_PS_MESSAGE_COUNT 0x2C05
+#define SI4713_TX_RDS_PS_AF 0x2C06
+#define SI4713_TX_RDS_FIFO_SIZE 0x2C07
+
+#define PREEMPHASIS_USA 75
+#define PREEMPHASIS_EU 50
+#define PREEMPHASIS_DISABLED 0
+#define FMPE_USA 0x00
+#define FMPE_EU 0x01
+#define FMPE_DISABLED 0x02
+
+#define POWER_UP 0x01
+#define POWER_DOWN 0x00
+
+#define MAX_RDS_PTY 31
+#define MAX_RDS_DEVIATION 90000
+
+/*
+ * PSNAME is known to be defined as 8 character sized (RDS Spec).
+ * However, there is receivers which scroll PSNAME 8xN sized.
+ */
+#define MAX_RDS_PS_NAME 96
+
+/*
+ * MAX_RDS_RADIO_TEXT is known to be defined as 32 (2A group) or 64 (2B group)
+ * character sized (RDS Spec).
+ * However, there is receivers which scroll them as well.
+ */
+#define MAX_RDS_RADIO_TEXT 384
+
+#define MAX_LIMITER_RELEASE_TIME 102390
+#define MAX_LIMITER_DEVIATION 90000
+
+#define MAX_PILOT_DEVIATION 90000
+#define MAX_PILOT_FREQUENCY 19000
+
+#define MAX_ACOMP_RELEASE_TIME 1000000
+#define MAX_ACOMP_ATTACK_TIME 5000
+#define MAX_ACOMP_THRESHOLD 0
+#define MIN_ACOMP_THRESHOLD (-40)
+#define MAX_ACOMP_GAIN 20
+
+/*
+ * si4713_device - private data
+ */
+struct si4713_device {
+ /* v4l2_subdev and i2c reference (v4l2_subdev priv data) */
+ struct v4l2_subdev sd;
+ struct v4l2_ctrl_handler ctrl_handler;
+ /* private data structures */
+ struct { /* si4713 control cluster */
+ /* This is one big cluster since the mute control
+ * powers off the device and after unmuting again all
+ * controls need to be set at once. The only way of doing
+ * that is by making it one big cluster. */
+ struct v4l2_ctrl *mute;
+ struct v4l2_ctrl *rds_ps_name;
+ struct v4l2_ctrl *rds_radio_text;
+ struct v4l2_ctrl *rds_pi;
+ struct v4l2_ctrl *rds_deviation;
+ struct v4l2_ctrl *rds_pty;
+ struct v4l2_ctrl *rds_compressed;
+ struct v4l2_ctrl *rds_art_head;
+ struct v4l2_ctrl *rds_stereo;
+ struct v4l2_ctrl *rds_ta;
+ struct v4l2_ctrl *rds_tp;
+ struct v4l2_ctrl *rds_ms;
+ struct v4l2_ctrl *rds_dyn_pty;
+ struct v4l2_ctrl *rds_alt_freqs_enable;
+ struct v4l2_ctrl *rds_alt_freqs;
+ struct v4l2_ctrl *compression_enabled;
+ struct v4l2_ctrl *compression_threshold;
+ struct v4l2_ctrl *compression_gain;
+ struct v4l2_ctrl *compression_attack_time;
+ struct v4l2_ctrl *compression_release_time;
+ struct v4l2_ctrl *pilot_tone_enabled;
+ struct v4l2_ctrl *pilot_tone_freq;
+ struct v4l2_ctrl *pilot_tone_deviation;
+ struct v4l2_ctrl *limiter_enabled;
+ struct v4l2_ctrl *limiter_deviation;
+ struct v4l2_ctrl *limiter_release_time;
+ struct v4l2_ctrl *tune_preemphasis;
+ struct v4l2_ctrl *tune_pwr_level;
+ struct v4l2_ctrl *tune_ant_cap;
+ };
+ struct completion work;
+ struct regulator *vdd;
+ struct regulator *vio;
+ struct gpio_desc *gpio_reset;
+ struct platform_device *pd;
+ u32 power_state;
+ u32 rds_enabled;
+ u32 frequency;
+ u32 preemphasis;
+ u32 stereo;
+ u32 tune_rnl;
+};
+
+struct radio_si4713_platform_data {
+ struct i2c_client *subdev;
+};
+#endif /* ifndef SI4713_I2C_H */