This patch add supports for the radio system on the Intel Russellville board.
It's a In-Vehicle Infotainment board with a radio tuner and DSP.
This umbrella driver has the DSP and tuner as V4L2 subdevs and calls them
when needed.
Signed-off-by: Richard Röjfors <richard.rojfors@xxxxxxxxxxxxxx>
---
diff --git a/drivers/media/radio/Kconfig b/drivers/media/radio/Kconfig
index 3f40f37..c242939 100644
--- a/drivers/media/radio/Kconfig
+++ b/drivers/media/radio/Kconfig
@@ -429,4 +429,14 @@ config RADIO_TEF6862
To compile this driver as a module, choose M here: the
module will be called TEF6862.
+config RADIO_TIMBERDALE
+ tristate "Enable the Timberdale radio driver"
+ depends on MFD_TIMBERDALE && VIDEO_V4L2
+ select RADIO_TEF6862
+ select RADIO_SAA7706H
+ ---help---
+ This is a kind of umbrella driver for the Radio Tuner and DSP
+ found behind the Timberdale FPGA on the Russellville board.
+ Enabling this driver will automatically select the DSP and tuner.
+
endif # RADIO_ADAPTERS
diff --git a/drivers/media/radio/Makefile b/drivers/media/radio/Makefile
index 01922ad..8973850 100644
--- a/drivers/media/radio/Makefile
+++ b/drivers/media/radio/Makefile
@@ -24,5 +24,6 @@ obj-$(CONFIG_RADIO_SI470X) += si470x/
obj-$(CONFIG_USB_MR800) += radio-mr800.o
obj-$(CONFIG_RADIO_TEA5764) += radio-tea5764.o
obj-$(CONFIG_RADIO_TEF6862) += tef6862.o
+obj-$(CONFIG_RADIO_TIMBERDALE) += radio-timb.o
EXTRA_CFLAGS += -Isound
diff --git a/drivers/media/radio/radio-timb.c b/drivers/media/radio/radio-timb.c
new file mode 100644
index 0000000..0de457f
--- /dev/null
+++ b/drivers/media/radio/radio-timb.c
@@ -0,0 +1,244 @@
+/*
+ * radio-timb.c Timberdale FPGA Radio driver
+ * Copyright (c) 2009 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/version.h>
+#include <linux/io.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-device.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <media/timb_radio.h>
+
+#define DRIVER_NAME "timb-radio"
+
+struct timbradio {
+ struct timb_radio_platform_data pdata;
+ struct v4l2_subdev *sd_tuner;
+ struct v4l2_subdev *sd_dsp;
+ struct video_device video_dev;
+ struct v4l2_device v4l2_dev;
+};
+
+
+static int timbradio_vidioc_querycap(struct file *file, void *priv,
+ struct v4l2_capability *v)
+{
+ strlcpy(v->driver, DRIVER_NAME, sizeof(v->driver));
+ strlcpy(v->card, "Timberdale Radio", sizeof(v->card));
+ snprintf(v->bus_info, sizeof(v->bus_info), "platform:"DRIVER_NAME);
+ v->version = KERNEL_VERSION(0, 0, 1);
+ v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
+ return 0;
+}
+
+static int timbradio_vidioc_g_tuner(struct file *file, void *priv,
+ struct v4l2_tuner *v)
+{
+ struct timbradio *tr = video_drvdata(file);
+ return v4l2_subdev_call(tr->sd_tuner, tuner, g_tuner, v);
+}
+
+static int timbradio_vidioc_s_tuner(struct file *file, void *priv,
+ struct v4l2_tuner *v)
+{
+ struct timbradio *tr = video_drvdata(file);
+ return v4l2_subdev_call(tr->sd_tuner, tuner, s_tuner, v);
+}
+
+static int timbradio_vidioc_g_input(struct file *filp, void *priv,
+ unsigned int *i)
+{
+ *i = 0;
+ return 0;
+}
+
+static int timbradio_vidioc_s_input(struct file *filp, void *priv,
+ unsigned int i)
+{
+ return i ? -EINVAL : 0;
+}
+
+static int timbradio_vidioc_g_audio(struct file *file, void *priv,
+ struct v4l2_audio *a)
+{
+ a->index = 0;
+ strlcpy(a->name, "Radio", sizeof(a->name));
+ a->capability = V4L2_AUDCAP_STEREO;
+ return 0;
+}
+
+static int timbradio_vidioc_s_audio(struct file *file, void *priv,
+ struct v4l2_audio *a)
+{
+ return a->index ? -EINVAL : 0;
+}
+
+static int timbradio_vidioc_s_frequency(struct file *file, void *priv,
+ struct v4l2_frequency *f)
+{
+ struct timbradio *tr = video_drvdata(file);
+ return v4l2_subdev_call(tr->sd_tuner, tuner, s_frequency, f);
+}
+
+static int timbradio_vidioc_g_frequency(struct file *file, void *priv,
+ struct v4l2_frequency *f)
+{
+ struct timbradio *tr = video_drvdata(file);
+ return v4l2_subdev_call(tr->sd_tuner, tuner, g_frequency, f);
+}
+
+static int timbradio_vidioc_queryctrl(struct file *file, void *priv,
+ struct v4l2_queryctrl *qc)
+{
+ struct timbradio *tr = video_drvdata(file);
+ return v4l2_subdev_call(tr->sd_dsp, core, queryctrl, qc);
+}
+
+static int timbradio_vidioc_g_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctrl)
+{
+ struct timbradio *tr = video_drvdata(file);
+ return v4l2_subdev_call(tr->sd_dsp, core, g_ctrl, ctrl);
+}
+
+static int timbradio_vidioc_s_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctrl)
+{
+ struct timbradio *tr = video_drvdata(file);
+ return v4l2_subdev_call(tr->sd_dsp, core, s_ctrl, ctrl);
+}
+
+static const struct v4l2_ioctl_ops timbradio_ioctl_ops = {
+ .vidioc_querycap = timbradio_vidioc_querycap,
+ .vidioc_g_tuner = timbradio_vidioc_g_tuner,
+ .vidioc_s_tuner = timbradio_vidioc_s_tuner,
+ .vidioc_g_frequency = timbradio_vidioc_g_frequency,
+ .vidioc_s_frequency = timbradio_vidioc_s_frequency,
+ .vidioc_g_input = timbradio_vidioc_g_input,
+ .vidioc_s_input = timbradio_vidioc_s_input,
+ .vidioc_g_audio = timbradio_vidioc_g_audio,
+ .vidioc_s_audio = timbradio_vidioc_s_audio,
+ .vidioc_queryctrl = timbradio_vidioc_queryctrl,
+ .vidioc_g_ctrl = timbradio_vidioc_g_ctrl,
+ .vidioc_s_ctrl = timbradio_vidioc_s_ctrl
+};
+
+static const struct v4l2_file_operations timbradio_fops = {
+ .owner = THIS_MODULE,
+ .ioctl = video_ioctl2,
+};
+
+static int __devinit timbradio_probe(struct platform_device *pdev)
+{
+ struct timb_radio_platform_data *pdata = pdev->dev.platform_data;
+ struct timbradio *tr;
+ int err;
+
+ if (!pdata) {
+ dev_err(&pdev->dev, "Platform data missing\n");
+ err = -EINVAL;
+ goto err;
+ }
+
+ tr = kzalloc(sizeof(*tr), GFP_KERNEL);
+ if (!tr) {
+ err = -ENOMEM;
+ goto err;
+ }
+
+ tr->pdata = *pdata;
+
+ strlcpy(tr->video_dev.name, "Timberdale Radio",
+ sizeof(tr->video_dev.name));
+ tr->video_dev.fops = &timbradio_fops;
+ tr->video_dev.ioctl_ops = &timbradio_ioctl_ops;
+ tr->video_dev.release = video_device_release_empty;
+ tr->video_dev.minor = -1;
+
+ strlcpy(tr->v4l2_dev.name, DRIVER_NAME, sizeof(tr->v4l2_dev.name));
+ err = v4l2_device_register(NULL, &tr->v4l2_dev);
+ if (err)
+ goto err_v4l2_dev;
+
+ tr->video_dev.v4l2_dev = &tr->v4l2_dev;
+
+ err = video_register_device(&tr->video_dev, VFL_TYPE_RADIO, -1);
+ if (err) {
+ dev_err(&pdev->dev, "Error reg video\n");
+ goto err_video_req;
+ }
+
+ video_set_drvdata(&tr->video_dev, tr);
+
+ platform_set_drvdata(pdev, tr);
+ return 0;
+
+err_video_req:
+ video_device_release_empty(&tr->video_dev);
+ v4l2_device_unregister(&tr->v4l2_dev);
+err_v4l2_dev:
+ kfree(tr);
+err:
+ dev_err(&pdev->dev, "Failed to register: %d\n", err);
+
+ return err;
+}
+
+static int __devexit timbradio_remove(struct platform_device *pdev)
+{
+ struct timbradio *tr = platform_get_drvdata(pdev);
+
+ video_unregister_device(&tr->video_dev);
+ video_device_release_empty(&tr->video_dev);
+
+ v4l2_device_unregister(&tr->v4l2_dev);
+
+ kfree(tr);
+
+ return 0;
+}
+
+static struct platform_driver timbradio_platform_driver = {
+ .driver = {
+ .name = DRIVER_NAME,
+ .owner = THIS_MODULE,
+ },
+ .probe = timbradio_probe,
+ .remove = timbradio_remove,
+};
+
+/*--------------------------------------------------------------------------*/
+
+static int __init timbradio_init(void)
+{
+ return platform_driver_register(&timbradio_platform_driver);
+}
+
+static void __exit timbradio_exit(void)
+{
+ platform_driver_unregister(&timbradio_platform_driver);
+}
+
+module_init(timbradio_init);
+module_exit(timbradio_exit);
+
+MODULE_DESCRIPTION("Timberdale Radio driver");
+MODULE_AUTHOR("Mocean Laboratories <info@xxxxxxxxxxxxxxx>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:"DRIVER_NAME);
diff --git a/include/media/timb_radio.h b/include/media/timb_radio.h
new file mode 100644
index 0000000..fcd32a3
--- /dev/null
+++ b/include/media/timb_radio.h
@@ -0,0 +1,36 @@
+/*
+ * timb_radio.h Platform struct for the Timberdale radio driver
+ * Copyright (c) 2009 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _TIMB_RADIO_
+#define _TIMB_RADIO_ 1
+
+#include <linux/i2c.h>
+
+struct timb_radio_platform_data {
+ int i2c_adapter; /* I2C adapter where the tuner and dsp are attached */
+ struct {
+ const char *module_name;
+ struct i2c_board_info *info;
+ } tuner;
+ struct {
+ const char *module_name;
+ struct i2c_board_info *info;
+ } dsp;
+};
+
+#endif
--
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