[PATCH 3/3] V4L2: WL1273 FM Radio: Controls for the FM radio.
This file implements V4L2 controls for using the Texas Instruments
WL1273 FM Radio.
Signed-off-by: Matti J. Aaltonen
---
drivers/media/radio/Kconfig| 15 +
drivers/media/radio/Makefile |1 +
drivers/media/radio/radio-wl1273.c | 1849
3 files changed, 1865 insertions(+), 0 deletions(-)
create mode 100644 drivers/media/radio/radio-wl1273.c
diff --git a/drivers/media/radio/Kconfig b/drivers/media/radio/Kconfig
index 83567b8..209fd37 100644
--- a/drivers/media/radio/Kconfig
+++ b/drivers/media/radio/Kconfig
@@ -452,4 +452,19 @@ config RADIO_TIMBERDALE
found behind the Timberdale FPGA on the Russellville board.
Enabling this driver will automatically select the DSP and tuner.
+config RADIO_WL1273
+ tristate "Texas Instruments WL1273 I2C FM Radio"
+depends on I2C && VIDEO_V4L2 && SND
+ select FW_LOADER
+ ---help---
+ Choose Y here if you have this FM radio chip.
+
+ In order to control your radio card, you will need to use programs
+ that are compatible with the Video For Linux 2 API. Information on
+ this API and pointers to "v4l2" programs may be found at
+ .
+
+ To compile this driver as a module, choose M here: the
+ module will be called radio-wl1273.
+
endif # RADIO_ADAPTERS
diff --git a/drivers/media/radio/Makefile b/drivers/media/radio/Makefile
index f615583..d297074 100644
--- a/drivers/media/radio/Makefile
+++ b/drivers/media/radio/Makefile
@@ -26,5 +26,6 @@ obj-$(CONFIG_RADIO_TEA5764) += radio-tea5764.o
obj-$(CONFIG_RADIO_SAA7706H) += saa7706h.o
obj-$(CONFIG_RADIO_TEF6862) += tef6862.o
obj-$(CONFIG_RADIO_TIMBERDALE) += radio-timb.o
+obj-$(CONFIG_RADIO_WL1273) += radio-wl1273.o
EXTRA_CFLAGS += -Isound
diff --git a/drivers/media/radio/radio-wl1273.c
b/drivers/media/radio/radio-wl1273.c
new file mode 100644
index 000..17b72df
--- /dev/null
+++ b/drivers/media/radio/radio-wl1273.c
@@ -0,0 +1,1849 @@
+/*
+ * Driver for the Texas Instruments WL1273 FM radio.
+ *
+ * Copyright (C) Nokia Corporation
+ * Author: Matti J. Aaltonen
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#undef DEBUG
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+#define DRIVER_DESC "Wl1273 FM Radio - V4L2"
+
+#define WL1273_POWER_SET_OFF 0
+#define WL1273_POWER_SET_FM(1 << 0)
+#define WL1273_POWER_SET_RDS (1 << 1)
+#define WL1273_POWER_SET_RETENTION (1 << 4)
+
+#define WL1273_PUPD_SET_OFF0x00
+#define WL1273_PUPD_SET_ON 0x01
+#define WL1273_PUPD_SET_RETENTION 0x10
+
+#define WL1273_FREQ_MULT (1 / 625)
+#define WL1273_INV_FREQ_MULT (625 / 1)
+/*
+ * static unsigned char radio_region - Region
+ *
+ * The regions are 0=Japan, 1=USA-Europe. USA-Europe is the default.
+ */
+static unsigned char radio_region = 1;
+module_param(radio_region, byte, 0);
+MODULE_PARM_DESC(radio_region, "Region: 0=Japan, 1=USA-Europe*");
+
+/*
+ * static int radio_nr - The number of the radio device
+ *
+ * The default is 0.
+ */
+static int radio_nr = -1;
+module_param(radio_nr, int, 0);
+MODULE_PARM_DESC(radio_nr, "Radio Nr");
+
+struct wl1273_device {
+ struct v4l2_device v4l2dev;
+ struct video_device videodev;
+ struct device *dev;
+ struct wl1273_core *core;
+ bool rds_on;
+};
+
+static int wl1273_fm_set_tx_freq(struct wl1273_core *core, unsigned int freq)
+{
+ int r = 0;
+
+ if (freq < core->regions[core->region].bottom_frequency) {
+ dev_err(&core->i2c_dev->dev,
+ "Frequency out of range: %d < %d\n",
+ freq, core->regions[core->region].bottom_frequency);
+ return -EDOM;
+ }
+
+ if (freq > core->regions[core->region].top_frequency) {
+ dev_err(&core->i2c_dev->dev,
+ "Frequency out of range: %d > %d\n",
+ freq, core->regions[core->region].top_frequency);
+ return -EDOM;
+ }
+
+ /*
+* The driver works better with this msleep,
+* the documentation doesn't mention it.
+*/
+ msleep(5);
+ dev_dbg(&core->i2c_dev->dev, "%s: freq: %d kHz\n", __func__, freq);
+
+ INIT_COMPLETION(core->
[PATCH 3/3] V4L2: WL1273 FM Radio: Controls for the FM radio.
This file implements V4L2 controls for using the Texas Instruments
WL1273 FM Radio.
Signed-off-by: Matti J. Aaltonen
---
drivers/media/radio/Kconfig| 15 +
drivers/media/radio/Makefile |1 +
drivers/media/radio/radio-wl1273.c | 805
3 files changed, 821 insertions(+), 0 deletions(-)
create mode 100644 drivers/media/radio/radio-wl1273.c
diff --git a/drivers/media/radio/Kconfig b/drivers/media/radio/Kconfig
index 83567b8..209fd37 100644
--- a/drivers/media/radio/Kconfig
+++ b/drivers/media/radio/Kconfig
@@ -452,4 +452,19 @@ config RADIO_TIMBERDALE
found behind the Timberdale FPGA on the Russellville board.
Enabling this driver will automatically select the DSP and tuner.
+config RADIO_WL1273
+ tristate "Texas Instruments WL1273 I2C FM Radio"
+depends on I2C && VIDEO_V4L2 && SND
+ select FW_LOADER
+ ---help---
+ Choose Y here if you have this FM radio chip.
+
+ In order to control your radio card, you will need to use programs
+ that are compatible with the Video For Linux 2 API. Information on
+ this API and pointers to "v4l2" programs may be found at
+ .
+
+ To compile this driver as a module, choose M here: the
+ module will be called radio-wl1273.
+
endif # RADIO_ADAPTERS
diff --git a/drivers/media/radio/Makefile b/drivers/media/radio/Makefile
index f615583..d297074 100644
--- a/drivers/media/radio/Makefile
+++ b/drivers/media/radio/Makefile
@@ -26,5 +26,6 @@ obj-$(CONFIG_RADIO_TEA5764) += radio-tea5764.o
obj-$(CONFIG_RADIO_SAA7706H) += saa7706h.o
obj-$(CONFIG_RADIO_TEF6862) += tef6862.o
obj-$(CONFIG_RADIO_TIMBERDALE) += radio-timb.o
+obj-$(CONFIG_RADIO_WL1273) += radio-wl1273.o
EXTRA_CFLAGS += -Isound
diff --git a/drivers/media/radio/radio-wl1273.c
b/drivers/media/radio/radio-wl1273.c
new file mode 100644
index 000..07f6787
--- /dev/null
+++ b/drivers/media/radio/radio-wl1273.c
@@ -0,0 +1,805 @@
+/*
+ * Driver for the Texas Instruments WL1273 FM radio.
+ *
+ * Copyright (C) Nokia Corporation
+ * Author: Matti J. Aaltonen
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#undef DEBUG
+
+#include
+#include
+#include
+#include
+#include
+
+#define DRIVER_DESC "Wl1273 FM Radio - V4L2"
+
+/*
+ * static int radio_nr - The number of the radio device
+ *
+ * The default is 0.
+ */
+static int radio_nr = -1;
+module_param(radio_nr, int, 0);
+MODULE_PARM_DESC(radio_nr, "Radio Nr");
+
+struct wl1273_device {
+ struct video_device *videodev;
+ struct device *dev;
+ struct wl1273_core *core;
+ bool rds_on;
+};
+
+static ssize_t wl1273_fm_fops_write(struct file *file, const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct wl1273_device *radio = video_get_drvdata(video_devdata(file));
+ unsigned char *s;
+ u16 val;
+ int r;
+
+ dev_dbg(radio->dev, "%s\n", __func__);
+
+ if (radio->core->mode == WL1273_MODE_RX)
+ return count;
+
+ if (mutex_lock_interruptible(&radio->core->lock))
+ return -EINTR;
+
+ /* Manual Mode */
+ if (count > 255)
+ val = 255;
+ else
+ val = count;
+
+ wl1273_fm_write_cmd(radio->core, WL1273_RDS_CONFIG_DATA_SET, val);
+
+ s = kmalloc(val + 1, GFP_KERNEL);
+ if (!s) {
+ r = -ENOMEM;
+ goto out;
+ }
+
+ if (copy_from_user(s + 1, buf, val)) {
+ kfree(s);
+ r = -EFAULT;
+ goto out;
+ }
+
+ dev_dbg(radio->dev, "Count: %d\n", val);
+ dev_dbg(radio->dev, "From user: \"%s\"\n", s);
+
+ s[0] = WL1273_RDS_DATA_SET;
+ wl1273_fm_write_data(radio->core, s, val + 1);
+
+ kfree(s);
+ r = val;
+
+out:
+ mutex_unlock(&radio->core->lock);
+
+ return r;
+}
+
+static unsigned int wl1273_fm_fops_poll(struct file *file,
+ struct poll_table_struct *pts)
+{
+ struct wl1273_device *radio = video_get_drvdata(video_devdata(file));
+ struct wl1273_core *core = radio->core;
+ unsigned int rd_index, wr_index;
+
+ /* TODO: handle the case of multiple readers */
+
+ poll_wait(file, &core->read_queue, pts);
+
+ rd_index = core->
