new file mode 100644
@@ -0,0 +1,1045 @@
+/*
+ * drivers/media/radio/si4713.c
+ *
+ * Silicon Labs Si4713 FM Radio Transmitter I2C commands.
+ *
+ * Copyright (c) 2009 Nokia Corporation
+ * Contact: Eduardo Valentin <eduardo.valentin@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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
+ */
+
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-i2c-drv.h>
+
+#include "si4713.h"
+
+#define DEFAULT_RDS_PI 0x00
+#define DEFAULT_RDS_PTY 0x00
+#define DEFAULT_RDS_PS_NAME "Si4713 "
+#define DEFAULT_RDS_RADIO_TEXT DEFAULT_RDS_PS_NAME
+#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_REGION_SETTINGS 0x02
+#define DEFAULT_MUTE 0x00
+#define DEFAULT_POWER_LEVEL 88
+#define DEFAULT_TUNE_RSSI 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 dev_to_v4l2(f) ((f * FREQDEV_UNIT) / FREQV4L2_MULTI)
+#define v4l2_to_dev(f) ((f * FREQV4L2_MULTI) / FREQDEV_UNIT)
+
+/*
+ * Sysfs properties
+ * Read and write functions
+ */
+#define property_write(prop, type, mask, check) \
+static ssize_t si4713_##prop##_write(struct device *dev, \
+ struct device_attribute *attr, \
+ const char *buf, \
+ size_t count) \
+{ \
+ struct si4713_device *sdev = dev_get_drvdata(dev); \
+ type value; \
+ int rval; \
+ \
+ if (!sdev) \
+ return -ENODEV; \
+ \
+ sscanf(buf, mask, &value); \
+ \
+ if (check) \
+ return -EDOM; \
+ \
+ rval = si4713_set_##prop(sdev, value); \
+ \
+ return rval < 0 ? rval : count; \
+}
+
+#define property_read(prop, size, mask) \
+static ssize_t si4713_##prop##_read(struct device *dev, \
+ struct device_attribute *attr, \
+ char *buf) \
+{ \
+ struct si4713_device *sdev = dev_get_drvdata(dev); \
+ size value; \
+ \
+ if (!sdev) \
+ return -ENODEV; \
+ \
+ value = si4713_get_##prop(sdev); \
+ \
+ if (value >= 0) \
+ value = sprintf(buf, mask "\n", value); \
+ \
+ return value; \
+}
+
+#define DEFINE_SYSFS_PROPERTY(prop, signal, size, mask, check) \
+property_write(prop, signal size, mask, check) \
+property_read(prop, size, mask) \
+static DEVICE_ATTR(prop, S_IRUGO | S_IWUSR, si4713_##prop##_read, \
+ si4713_##prop##_write);
+#define DEFINE_SYSFS_PROPERTY_RO(prop, signal, size, mask) \
+property_read(prop, size, mask) \
+static DEVICE_ATTR(prop, S_IRUGO, si4713_##prop##_read, NULL);
+
+
+#define property_str_write(prop, size) \
+static ssize_t si4713_##prop##_write(struct device *dev, \
+ struct device_attribute *attr, \
+ const char *buf, \
+ size_t count) \
+{ \
+ struct si4713_device *sdev = dev_get_drvdata(dev); \
+ int rval; \
+ u8 *in; \
+ \
+ if (!sdev) \
+ return -ENODEV; \
+ \
+ in = kzalloc(size + 1, GFP_KERNEL); \
+ if (!in) \
+ return -ENOMEM; \
+ \
+ /* We don't want to miss the spaces */ \
+ strncpy(in, buf, size); \
+ rval = si4713_set_##prop(sdev, in); \
+ \
+ kfree(in); \
+ \
+ return rval < 0 ? rval : count; \
+}
+
+#define property_str_read(prop, size) \
+static ssize_t si4713_##prop##_read(struct device *dev, \
+ struct device_attribute *attr, \
+ char *buf) \
+{ \
+ struct si4713_device *sdev = dev_get_drvdata(dev); \
+ int count; \
+ u8 *out; \
+ \
+ if (!sdev) \
+ return -ENODEV; \
+ \
+ out = kzalloc(size + 1, GFP_KERNEL); \
+ if (!out) \
+ return -ENOMEM; \
+ \
+ si4713_get_##prop(sdev, out); \
+ count = sprintf(buf, "%s\n", out); \
+ \
+ kfree(out); \
+ \
+ return count; \
+}
+
+#define DEFINE_SYSFS_PROPERTY_STR(prop, size) \
+property_str_write(prop, size) \
+property_str_read(prop, size) \
+static DEVICE_ATTR(prop, S_IRUGO | S_IWUSR, si4713_##prop##_read, \
+ si4713_##prop##_write);
+
+/*
+ * Power level property
+ */
+/* power_level (rw) 88 - 115 or 0 */
+static ssize_t si4713_power_level_write(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ struct si4713_device *sdev = dev_get_drvdata(dev);
+ unsigned int p;
+ int rval, pl;
+
+ if (!sdev) {
+ rval = -ENODEV;
+ goto exit;
+ }
+
+ sscanf(buf, "%u", &p);
+
+ pl = si4713_get_power_level(sdev);
+ if (pl < 0) {
+ rval = pl;
+ goto exit;
+ }
+
+ rval = si4713_set_power_level(sdev, p);
+
+exit:
+ return rval < 0 ? rval : count;
+}
+property_read(power_level, unsigned int, "%u")
+static DEVICE_ATTR(power_level, S_IRUGO | S_IWUSR, si4713_power_level_read,
+ si4713_power_level_write);
+
+DEFINE_SYSFS_PROPERTY(antenna_capacitor, unsigned, int, "%u",
+ value > SI4713_MAX_ANTCAP)
+/*
+ * RDS properties
+ */
+/* rds_pi (rw) 0 - 0xFFFF */
+DEFINE_SYSFS_PROPERTY(rds_pi, unsigned, int, "%x", 0)
+/* rds_pty (rw) 0 - 0x1F */
+DEFINE_SYSFS_PROPERTY(rds_pty, unsigned, int, "%u", value > MAX_RDS_PTY)
+/* rds_enabled (rw) 0 - 1 */
+DEFINE_SYSFS_PROPERTY(rds_enabled, unsigned, int, "%u", 0)
+/* rds_ps_name (rw) strlen (8 - 96) */
+DEFINE_SYSFS_PROPERTY_STR(rds_ps_name, MAX_RDS_PS_NAME)
+/* rds_radio_text (rw) strlen (0 - 384) */
+DEFINE_SYSFS_PROPERTY_STR(rds_radio_text, MAX_RDS_RADIO_TEXT)
+
+/*
+ * Limiter properties
+ */
+/* limiter_release_time (rw) 0 - 102390 */
+DEFINE_SYSFS_PROPERTY(limiter_release_time, unsigned, long, "%lu",
+ value > MAX_LIMITER_RELEASE_TIME)
+/* limiter_deviation (rw) 0 - 90000 */
+DEFINE_SYSFS_PROPERTY(limiter_deviation, unsigned, long, "%lu",
+ value > MAX_LIMITER_DEVIATION)
+/* limiter_enabled (rw) 0 - 1 */
+DEFINE_SYSFS_PROPERTY(limiter_enabled, unsigned, int, "%u", 0)
+
+/*
+ * Pilot tone properties
+ */
+/* pilot_frequency (rw) 0 - 19000 */
+DEFINE_SYSFS_PROPERTY(pilot_frequency, unsigned, int, "%u",
+ value > MAX_PILOT_FREQUENCY)
+/* pilot_deviation (rw) 0 - 90000 */
+DEFINE_SYSFS_PROPERTY(pilot_deviation, unsigned, long, "%lu",
+ value > MAX_PILOT_DEVIATION)
+/* pilot_enabled (rw) 0 - 1 */
+DEFINE_SYSFS_PROPERTY(pilot_enabled, unsigned, int, "%u", 0)
+
+/*
+ * Stereo properties
+ */
+/* stereo_enabled (rw) 0 - 1 */
+DEFINE_SYSFS_PROPERTY(stereo_enabled, unsigned, int, "%u", 0)
+
+/*
+ * Audio Compression properties
+ */
+/* acomp_release_time (rw) 0 - 1000000 */
+DEFINE_SYSFS_PROPERTY(acomp_release_time, unsigned, long, "%lu",
+ value > MAX_ACOMP_RELEASE_TIME)
+/* acomp_attack_time (rw) 0 - 5000 */
+DEFINE_SYSFS_PROPERTY(acomp_attack_time, unsigned, int, "%u",
+ value > MAX_ACOMP_ATTACK_TIME)
+/* acomp_threshold (rw) -40 - 0 */
+property_write(acomp_threshold, int, "%d",
+ value > MAX_ACOMP_THRESHOLD ||
+ value < MIN_ACOMP_THRESHOLD)
+
+static ssize_t si4713_acomp_threshold_read(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct si4713_device *sdev = dev_get_drvdata(dev);
+ int count;
+ s8 thres;
+
+ if (!sdev)
+ return -ENODEV;
+
+ count = si4713_get_acomp_threshold(sdev, &thres);
+
+ if (count >= 0)
+ count = sprintf(buf, "%d\n", thres);
+
+ return count;
+}
+static DEVICE_ATTR(acomp_threshold, S_IRUGO | S_IWUSR,
+ si4713_acomp_threshold_read,
+ si4713_acomp_threshold_write);
+
+/* acomp_gain (rw) 0 - 20 */
+DEFINE_SYSFS_PROPERTY(acomp_gain, unsigned, int, "%u", value > MAX_ACOMP_GAIN)
+/* acomp_enabled (rw) 0 - 1 */
+DEFINE_SYSFS_PROPERTY(acomp_enabled, unsigned, int, "%u", 0)
+
+/* Tune_measure (rw) */
+DEFINE_SYSFS_PROPERTY(tune_measure, unsigned, int, "%u", 0)
+
+/*
+ * Region properties
+ */
+DEFINE_SYSFS_PROPERTY_RO(region_bottom_frequency, unsigned, int, "%u")
+DEFINE_SYSFS_PROPERTY_RO(region_top_frequency, unsigned, int, "%u")
+DEFINE_SYSFS_PROPERTY_RO(region_channel_spacing, unsigned, int, "%u")
+DEFINE_SYSFS_PROPERTY(region_preemphasis, unsigned, int, "%u",
+ ((value != PREEMPHASIS_USA) &&
+ (value != PREEMPHASIS_EU) &&
+ (value != PREEMPHASIS_DISABLED)))
+DEFINE_SYSFS_PROPERTY(region, unsigned, int, "%u", 0)
+
+static struct attribute *attrs[] = {
+ &dev_attr_power_level.attr,
+ &dev_attr_antenna_capacitor.attr,
+ &dev_attr_rds_pi.attr,
+ &dev_attr_rds_pty.attr,
+ &dev_attr_rds_ps_name.attr,
+ &dev_attr_rds_radio_text.attr,
+ &dev_attr_rds_enabled.attr,
+ &dev_attr_limiter_release_time.attr,
+ &dev_attr_limiter_deviation.attr,
+ &dev_attr_limiter_enabled.attr,
+ &dev_attr_pilot_frequency.attr,
+ &dev_attr_pilot_deviation.attr,
+ &dev_attr_pilot_enabled.attr,
+ &dev_attr_stereo_enabled.attr,
+ &dev_attr_acomp_release_time.attr,
+ &dev_attr_acomp_attack_time.attr,
+ &dev_attr_acomp_threshold.attr,
+ &dev_attr_acomp_gain.attr,
+ &dev_attr_acomp_enabled.attr,
+ &dev_attr_region_bottom_frequency.attr,
+ &dev_attr_region_top_frequency.attr,
+ &dev_attr_region_preemphasis.attr,
+ &dev_attr_region_channel_spacing.attr,
+ &dev_attr_region.attr,
+ &dev_attr_tune_measure.attr,
+ NULL,
+};
+
+static const struct attribute_group attr_group = {
+ .attrs = attrs,
+};
+
+static irqreturn_t si4713_handler(int irq, void *dev)
+{
+ struct si4713_device *sdev = dev;
+ struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd);
+
+ dev_dbg(&client->dev, "IRQ called, signaling completion work\n");
+ complete(&sdev->work);
+
+ return IRQ_HANDLED;
+}
+
+static int si4713_write_econtrol(struct si4713_device *sdev,
+ struct v4l2_ext_control *control)
+{
+
+ s32 rval = 0;
+
+ switch (control->id) {
+ /* User class controls */
+ case V4L2_CID_AUDIO_MUTE:
+ rval = si4713_set_mute(sdev, control->value);
+ break;
+ /* FMTX class controls */
+ case V4L2_CID_RDS_ENABLED:
+ rval = si4713_set_rds_enabled(sdev, control->value);
+ break;
+ case V4L2_CID_RDS_PI:
+ rval = si4713_set_rds_pi(sdev, control->value);
+ break;
+ case V4L2_CID_RDS_PTY:
+ rval = si4713_set_rds_pty(sdev, control->value);
+ break;
+ /* TODO: String controls not implemented yet */
+ case V4L2_CID_RDS_PS_NAME:
+ case V4L2_CID_RDS_RADIO_TEXT:
+ break;
+
+ case V4L2_CID_AUDIO_LIMITER_ENABLED:
+ rval = si4713_set_limiter_enabled(sdev, control->value);
+ break;
+ case V4L2_CID_AUDIO_LIMITER_RELEASE_TIME:
+ rval = si4713_set_limiter_release_time(sdev, control->value);
+ break;
+ case V4L2_CID_AUDIO_LIMITER_DEVIATION:
+ rval = si4713_set_limiter_deviation(sdev, control->value);
+ break;
+
+ case V4L2_CID_AUDIO_COMPRESSION_ENABLED:
+ rval = si4713_set_acomp_enabled(sdev, control->value);
+ break;
+ case V4L2_CID_AUDIO_COMPRESSION_GAIN:
+ rval = si4713_set_acomp_gain(sdev, control->value);
+ break;
+ case V4L2_CID_AUDIO_COMPRESSION_THRESHOLD:
+ rval = si4713_set_acomp_threshold(sdev, control->value);
+ break;
+ case V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME:
+ rval = si4713_set_acomp_attack_time(sdev, control->value);
+ break;
+ case V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME:
+ rval = si4713_set_acomp_release_time(sdev, control->value);
+ break;
+
+ case V4L2_CID_PILOT_TONE_ENABLED:
+ rval = si4713_set_pilot_enabled(sdev, control->value);
+ break;
+ case V4L2_CID_PILOT_TONE_DEVIATION:
+ rval = si4713_set_pilot_deviation(sdev, control->value);
+ break;
+ case V4L2_CID_PILOT_TONE_FREQUENCY:
+ rval = si4713_set_pilot_frequency(sdev, control->value);
+ break;
+
+ case V4L2_CID_REGION:
+ rval = si4713_set_region(sdev, control->value);
+ break;
+ case V4L2_CID_REGION_PREEMPHASIS:
+ rval = si4713_set_region_preemphasis(sdev, control->value);
+ break;
+ case V4L2_CID_TUNE_POWER_LEVEL:
+ rval = si4713_set_power_level(sdev, control->value);
+ break;
+ case V4L2_CID_TUNE_ANTENNA_CAPACITOR:
+ rval = si4713_set_antenna_capacitor(sdev, control->value);
+ break;
+ default:
+ rval = -EINVAL;
+ break;
+ };
+
+ /* FIXME: There are properties with negative values */
+ if (rval >= 0) {
+ control->value = rval;
+ rval = 0;
+ }
+
+ return rval;
+}
+static int si4713_read_econtrol(struct si4713_device *sdev,
+ struct v4l2_ext_control *control)
+{
+
+ s32 rval = 0;
+ s8 val;
+
+ switch (control->id) {
+ /* User class controls */
+ case V4L2_CID_AUDIO_MUTE:
+ rval = si4713_get_mute(sdev);
+ break;
+ /* FMTX class controls */
+ case V4L2_CID_RDS_ENABLED:
+ rval = si4713_get_rds_enabled(sdev);
+ break;
+ case V4L2_CID_RDS_PI:
+ rval = si4713_get_rds_pi(sdev);
+ break;
+ case V4L2_CID_RDS_PTY:
+ rval = si4713_get_rds_pty(sdev);
+ break;
+ /* TODO: String controls not implemented yet */
+ case V4L2_CID_RDS_PS_NAME:
+ case V4L2_CID_RDS_RADIO_TEXT:
+ break;
+
+ case V4L2_CID_AUDIO_LIMITER_ENABLED:
+ rval = si4713_get_limiter_enabled(sdev);
+ break;
+ case V4L2_CID_AUDIO_LIMITER_RELEASE_TIME:
+ rval = si4713_get_limiter_release_time(sdev);
+ break;
+ case V4L2_CID_AUDIO_LIMITER_DEVIATION:
+ rval = si4713_get_limiter_deviation(sdev);
+ break;
+
+ case V4L2_CID_AUDIO_COMPRESSION_ENABLED:
+ rval = si4713_get_acomp_enabled(sdev);
+ break;
+ case V4L2_CID_AUDIO_COMPRESSION_GAIN:
+ rval = si4713_get_acomp_gain(sdev);
+ break;
+ case V4L2_CID_AUDIO_COMPRESSION_THRESHOLD:
+ rval = si4713_get_acomp_threshold(sdev, &val);
+ if (rval == 0)
+ rval = val;
+ break;
+ case V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME:
+ rval = si4713_get_acomp_attack_time(sdev);
+ break;
+ case V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME:
+ rval = si4713_get_acomp_release_time(sdev);
+ break;
+
+ case V4L2_CID_PILOT_TONE_ENABLED:
+ rval = si4713_get_pilot_enabled(sdev);
+ break;
+ case V4L2_CID_PILOT_TONE_DEVIATION:
+ rval = si4713_get_pilot_deviation(sdev);
+ break;
+ case V4L2_CID_PILOT_TONE_FREQUENCY:
+ rval = si4713_get_pilot_frequency(sdev);
+ break;
+
+ case V4L2_CID_REGION:
+ rval = si4713_get_region(sdev);
+ break;
+ case V4L2_CID_REGION_BOTTOM_FREQUENCY:
+ rval = si4713_get_region_bottom_frequency(sdev);
+ break;
+ case V4L2_CID_REGION_TOP_FREQUENCY:
+ rval = si4713_get_region_top_frequency(sdev);
+ break;
+ case V4L2_CID_REGION_PREEMPHASIS:
+ rval = si4713_get_region_preemphasis(sdev);
+ break;
+ case V4L2_CID_REGION_CHANNEL_SPACING:
+ rval = si4713_get_region_channel_spacing(sdev);
+ break;
+ case V4L2_CID_TUNE_POWER_LEVEL:
+ rval = si4713_get_power_level(sdev);
+ break;
+ case V4L2_CID_TUNE_ANTENNA_CAPACITOR:
+ rval = si4713_get_antenna_capacitor(sdev);
+ break;
+ default:
+ rval = -EINVAL;
+ break;
+ };
+
+ /* FIXME: There are properties with negative values */
+ if (rval >= 0) {
+ control->value = rval;
+ rval = 0;
+ }
+
+ return rval;
+}
+
+/*
+ * Video4Linux Subdev Interface
+ */
+
+/*
+ * si4713_s_ext_ctrls - set extended controls value
+ */
+static int si4713_s_ext_ctrls(struct v4l2_subdev *sd,
+ struct v4l2_ext_controls *ctrls)
+{
+ struct si4713_device *sdev = to_si4713_device(sd);
+ int i;
+
+ if (ctrls->ctrl_class != V4L2_CTRL_CLASS_FMTX)
+ return -EINVAL;
+
+ for (i = 0; i < ctrls->count; i++) {
+ int err = si4713_write_econtrol(sdev, ctrls->controls + i);
+
+ if (err < 0) {
+ ctrls->error_idx = i;
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * si4713_g_ext_ctrls - get extended controls value
+ */
+static int si4713_g_ext_ctrls(struct v4l2_subdev *sd,
+ struct v4l2_ext_controls *ctrls)
+{
+ struct si4713_device *sdev = to_si4713_device(sd);
+ int i;
+
+ if (ctrls->ctrl_class != V4L2_CTRL_CLASS_FMTX)
+ return -EINVAL;
+
+ for (i = 0; i < ctrls->count; i++) {
+ int err = si4713_read_econtrol(sdev, ctrls->controls + i);
+
+ if (err < 0) {
+ ctrls->error_idx = i;
+ return err;
+ }
+ }
+
+ return 0;
+}
+/*
+ * si4713_queryctrl - enumerate control items
+ */
+static int si4713_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
+{
+ int rval = 0;
+
+ switch (qc->id) {
+ /* User class controls */
+ /* These are only for kradio and such apps */
+ case V4L2_CID_AUDIO_VOLUME:
+ case V4L2_CID_AUDIO_BALANCE:
+ case V4L2_CID_AUDIO_BASS:
+ case V4L2_CID_AUDIO_TREBLE:
+ case V4L2_CID_AUDIO_LOUDNESS:
+ rval = v4l2_ctrl_query_fill(qc, 0, 0, 0, 0);
+ qc->flags |= V4L2_CTRL_FLAG_DISABLED;
+ break;
+ case V4L2_CID_AUDIO_MUTE:
+ rval = v4l2_ctrl_query_fill(qc, 0, 1, 1, DEFAULT_MUTE);
+ break;
+ /* FMTX class controls */
+ case V4L2_CID_RDS_ENABLED:
+ rval = v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
+ break;
+ case V4L2_CID_RDS_PI:
+ rval = v4l2_ctrl_query_fill(qc, 0, 0xFFFF, 1, DEFAULT_RDS_PI);
+ break;
+ case V4L2_CID_RDS_PTY:
+ rval = v4l2_ctrl_query_fill(qc, 0, 31, 1, DEFAULT_RDS_PTY);
+ break;
+ /* TODO: String controls not implemented yet */
+ case V4L2_CID_RDS_PS_NAME:
+ rval = v4l2_ctrl_query_fill(qc, 0, 0, 0, 0);
+ break;
+ case V4L2_CID_RDS_RADIO_TEXT:
+ rval = v4l2_ctrl_query_fill(qc, 0, 0, 0, 0);
+ break;
+
+ case V4L2_CID_AUDIO_LIMITER_ENABLED:
+ rval = v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
+ break;
+ case V4L2_CID_AUDIO_LIMITER_RELEASE_TIME:
+ rval = v4l2_ctrl_query_fill(qc, 250, MAX_LIMITER_RELEASE_TIME,
+ 50, DEFAULT_LIMITER_RTIME);
+ break;
+ case V4L2_CID_AUDIO_LIMITER_DEVIATION:
+ rval = v4l2_ctrl_query_fill(qc, 0, MAX_LIMITER_DEVIATION,
+ 10, DEFAULT_LIMITER_DEV);
+ break;
+
+ case V4L2_CID_AUDIO_COMPRESSION_ENABLED:
+ rval = v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
+ break;
+ case V4L2_CID_AUDIO_COMPRESSION_GAIN:
+ rval = v4l2_ctrl_query_fill(qc, 0, MAX_ACOMP_GAIN, 1,
+ DEFAULT_ACOMP_GAIN);
+ break;
+ case V4L2_CID_AUDIO_COMPRESSION_THRESHOLD:
+ rval = v4l2_ctrl_query_fill(qc, MIN_ACOMP_THRESHOLD,
+ MAX_ACOMP_THRESHOLD, 1,
+ DEFAULT_ACOMP_THRESHOLD);
+ break;
+ case V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME:
+ rval = v4l2_ctrl_query_fill(qc, 0, MAX_ACOMP_ATTACK_TIME,
+ 500, DEFAULT_ACOMP_ATIME);
+ break;
+ case V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME:
+ rval = v4l2_ctrl_query_fill(qc, 100000, MAX_ACOMP_RELEASE_TIME,
+ 100000, DEFAULT_ACOMP_RTIME);
+ break;
+
+ case V4L2_CID_PILOT_TONE_ENABLED:
+ rval = v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
+ break;
+ case V4L2_CID_PILOT_TONE_DEVIATION:
+ rval = v4l2_ctrl_query_fill(qc, 0, MAX_PILOT_DEVIATION,
+ 10, DEFAULT_PILOT_DEVIATION);
+ break;
+ case V4L2_CID_PILOT_TONE_FREQUENCY:
+ rval = v4l2_ctrl_query_fill(qc, 0, MAX_PILOT_FREQUENCY,
+ 1, DEFAULT_PILOT_FREQUENCY);
+ break;
+
+ case V4L2_CID_REGION:
+ rval = v4l2_ctrl_query_fill(qc, V4L2_FMTX_REGION_USA,
+ V4L2_FMTX_REGION_JAPAN_WIDE_BAND,
+ 1, DEFAULT_REGION_SETTINGS);
+ break;
+ case V4L2_CID_REGION_BOTTOM_FREQUENCY:
+ rval = v4l2_ctrl_query_fill(qc, 76000, 108000, 50, 108000);
+ break;
+ case V4L2_CID_REGION_TOP_FREQUENCY:
+ rval = v4l2_ctrl_query_fill(qc, 76000, 108000, 50, 108000);
+ break;
+ case V4L2_CID_REGION_PREEMPHASIS:
+ rval = v4l2_ctrl_query_fill(qc, V4L2_FMTX_PREEMPHASIS_75_uS,
+ V4L2_FMTX_PREEMPHASIS_50_uS,
+ 1, V4L2_FMTX_PREEMPHASIS_50_uS);
+ break;
+ case V4L2_CID_REGION_CHANNEL_SPACING:
+ rval = v4l2_ctrl_query_fill(qc, 50, 1000, 100, 50);
+ break;
+ case V4L2_CID_TUNE_POWER_LEVEL:
+ rval = v4l2_ctrl_query_fill(qc, 0, 120, 1, 88);
+ break;
+ case V4L2_CID_TUNE_ANTENNA_CAPACITOR:
+ rval = v4l2_ctrl_query_fill(qc, 0, 191, 1, 0);
+ break;
+ default:
+ rval = -EINVAL;
+ break;
+ };
+
+ return rval;
+}
+
+/*
+ * si4713_g_ctrl - get the value of a control
+ */
+static int si4713_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+ struct si4713_device *sdev = to_si4713_device(sd);
+ int rval = 0;
+
+ if (!sdev)
+ return -ENODEV;
+
+ switch (ctrl->id) {
+ case V4L2_CID_AUDIO_MUTE:
+ rval = si4713_get_mute(sdev);
+ if (rval >= 0)
+ ctrl->value = rval;
+ break;
+ }
+
+ return rval;
+}
+
+/*
+ * si4713_s_ctrl - set the value of a control
+ */
+static int si4713_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+ struct si4713_device *sdev = to_si4713_device(sd);
+ int rval = 0;
+
+ if (!sdev)
+ return -ENODEV;
+
+ switch (ctrl->id) {
+ case V4L2_CID_AUDIO_MUTE:
+ if (ctrl->value) {
+ rval = si4713_set_mute(sdev, ctrl->value);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_power_state(sdev, POWER_DOWN);
+ } else {
+ rval = si4713_set_power_state(sdev, POWER_UP);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_setup(sdev);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_mute(sdev, ctrl->value);
+ }
+ break;
+ }
+
+exit:
+ return rval;
+}
+
+static const struct v4l2_subdev_core_ops si4713_subdev_core_ops = {
+ .try_ext_ctrls = NULL,
+ .g_chip_ident = NULL,
+ .log_status = NULL,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ .g_register = NULL,
+ .s_register = NULL,
+#endif
+ .queryctrl = si4713_queryctrl,
+ .g_ext_ctrls = si4713_g_ext_ctrls,
+ .s_ext_ctrls = si4713_s_ext_ctrls,
+ .g_ctrl = si4713_g_ctrl,
+ .s_ctrl = si4713_s_ctrl,
+ .ioctl = NULL,
+ .querymenu = NULL,
+ .init = NULL,
+ .load_fw = NULL,
+ .reset = NULL,
+ .s_gpio = NULL,
+ .s_std = NULL,
+};
+
+/*
+ * si4713_g_tuner - get tuner attributes
+ */
+static int si4713_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *tuner)
+{
+ struct si4713_device *sdev = to_si4713_device(sd);
+ int rval;
+
+ if (!sdev) {
+ rval = -ENODEV;
+ goto exit;
+ }
+
+ if (tuner->index > 0) {
+ rval = -EINVAL;
+ goto exit;
+ }
+
+ strncpy(tuner->name, "FM Transmitter", 32);
+ tuner->type = V4L2_TUNER_RADIO;
+ tuner->rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_MONO;
+ tuner->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LOW;
+
+ /* Report current frequency range limits */
+ rval = si4713_get_region_bottom_frequency(sdev);
+ if (rval < 0)
+ goto exit;
+ tuner->rangelow = dev_to_v4l2(rval / 10);
+ rval = si4713_get_region_top_frequency(sdev);
+ if (rval < 0)
+ goto exit;
+ tuner->rangehigh = dev_to_v4l2(rval / 10);
+
+ /* Report current audio mode: mono or stereo */
+ tuner->audmode = V4L2_TUNER_MODE_MONO;
+ rval = si4713_get_stereo_enabled(sdev);
+ if (rval < 0)
+ goto exit;
+ if (rval)
+ tuner->audmode |= V4L2_TUNER_MODE_STEREO;
+
+ /* Report current signal length */
+ rval = si4713_get_tune_measure(sdev);
+ if (rval < 0)
+ goto exit;
+ tuner->signal = rval;
+
+ /* automatic frequency control: -1: freq to low, 1 freq to high */
+ tuner->afc = 0;
+
+exit:
+ return rval;
+}
+
+/*
+ * si4713_s_tuner - set tuner attributes
+ */
+static int si4713_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *tuner)
+{
+ struct si4713_device *sdev = to_si4713_device(sd);
+ int rval;
+
+ if (!sdev) {
+ rval = -ENODEV;
+ goto exit;
+ }
+
+ if (tuner->index > 0) {
+ rval = -EINVAL;
+ goto exit;
+ }
+
+ /* Set audio mode: mono or stereo */
+ rval = si4713_set_stereo_enabled(sdev,
+ !!(tuner->audmode & V4L2_TUNER_MODE_STEREO));
+ if (rval < 0)
+ goto exit;
+
+ /* TODO: How to set frequency to measure current signal length */
+
+exit:
+ 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;
+ int freq;
+
+ f->type = V4L2_TUNER_RADIO;
+ freq = si4713_get_frequency(sdev);
+
+ if (freq < 0)
+ rval = freq;
+ else
+ f->frequency = dev_to_v4l2(freq);
+
+ return rval;
+}
+
+/*
+ * si4713_s_frequency - set tuner or modulator radio frequency
+ */
+static int si4713_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f)
+{
+ struct si4713_device *sdev = to_si4713_device(sd);
+ int rval = 0;
+
+ if (f->type != V4L2_TUNER_RADIO) {
+ rval = -EINVAL;
+ goto exit;
+ }
+
+ rval = si4713_set_frequency(sdev, v4l2_to_dev(f->frequency));
+
+exit:
+ return rval;
+}
+
+static const struct v4l2_subdev_tuner_ops si4713_subdev_tuner_ops = {
+ .g_frequency = si4713_g_frequency,
+ .s_frequency = si4713_s_frequency,
+ .g_tuner = si4713_g_tuner,
+ .s_tuner = si4713_s_tuner,
+ .s_type_addr = NULL,
+ .s_config = NULL,
+ .s_standby = NULL,
+ .s_mode = NULL,
+ .s_radio = NULL,
+};
+
+static const struct v4l2_subdev_ops si4713_subdev_ops = {
+ .core = &si4713_subdev_core_ops,
+ .tuner = &si4713_subdev_tuner_ops,
+};
+
+/*
+ * I2C driver interface
+ */
+/*
+ * si4713_i2c_driver_probe - probe for the device
+ */
+static int si4713_i2c_driver_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct si4713_device *sdev;
+ int rval;
+
+ sdev = kzalloc(sizeof *sdev, GFP_KERNEL);
+ if (!sdev) {
+ dev_dbg(&client->dev, "Failed to alloc video device.\n");
+ rval = -ENOMEM;
+ goto exit;
+ }
+
+ sdev->platform_data = client->dev.platform_data;
+ if (!sdev->platform_data) {
+ dev_err(&client->dev, "No platform data registered.\n");
+ rval = -ENODEV;
+ goto free_sdev;
+ }
+
+ v4l2_i2c_subdev_init(&sdev->sd, client, &si4713_subdev_ops);
+
+ mutex_init(&sdev->mutex);
+ init_completion(&sdev->work);
+
+ if (client->irq) {
+ rval = request_irq(client->irq,
+ si4713_handler, IRQF_TRIGGER_FALLING | IRQF_DISABLED,
+ client->name, sdev);
+ if (rval < 0) {
+ dev_err(&client->dev, "Could not request IRQ\n");
+ goto free_sdev;
+ }
+ dev_dbg(&client->dev, "IRQ requested.\n");
+ } else {
+ dev_info(&client->dev, "IRQ not configure. Using timeouts.\n");
+ }
+
+ rval = sysfs_create_group(&client->dev.kobj, &attr_group);
+ if (rval < 0) {
+ dev_err(&client->dev, "Could not register sysfs interface.\n");
+ goto free_irq;
+ }
+
+ rval = si4713_probe(sdev);
+ if (rval < 0) {
+ dev_err(&client->dev, "Failed to probe device information.\n");
+ goto free_sysfs;
+ }
+
+ return 0;
+
+free_sysfs:
+ sysfs_remove_group(&client->dev.kobj, &attr_group);
+free_irq:
+ if (client->irq)
+ free_irq(client->irq, sdev);
+free_sdev:
+ kfree(sdev);
+exit:
+ return rval;
+}
+
+/*
+ * si4713_i2c_driver_remove - remove the device
+ */
+static int __exit si4713_i2c_driver_remove(struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct si4713_device *sdev = to_si4713_device(sd);
+
+ /* our client isn't attached */
+ if (!client->adapter)
+ return -ENODEV;
+
+ if (sdev) {
+ sysfs_remove_group(&client->dev.kobj, &attr_group);
+
+ if (sdev->power_state)
+ si4713_set_power_state(sdev, POWER_DOWN);
+
+ if (client->irq > 0)
+ free_irq(client->irq, sdev);
+
+ v4l2_device_unregister_subdev(sd);
+
+ kfree(sdev);
+ }
+
+ return 0;
+}
+
+/*
+ * si4713_i2c_driver - i2c driver interface
+ */
+static const struct i2c_device_id si4713_id[] = {
+ { "si4713" , 0 },
+ { },
+};
+MODULE_DEVICE_TABLE(i2c, si4713_id);
+
+static struct v4l2_i2c_driver_data v4l2_i2c_data = {
+ .name = "si4713",
+ .probe = si4713_i2c_driver_probe,
+ .remove = __exit_p(si4713_i2c_driver_remove),
+ .id_table = si4713_id,
+};
+
+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");
new file mode 100644
@@ -0,0 +1,2250 @@
+/*
+ * drivers/media/radio/si4713.c
+ *
+ * Silicon Labs Si4713 FM Radio Transmitter I2C commands.
+ *
+ * Copyright (c) 2008 Instituto Nokia de Tecnologia - INdT
+ * Contact: Eduardo Valentin <eduardo.valentin@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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
+ */
+
+#include <linux/mutex.h>
+#include <linux/completion.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+
+#include "si4713.h"
+
+#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 enable_rds(p) (p | (1 << 2))
+#define disable_rds(p) (p & ~(1 << 2))
+#define get_rds_status(p) ((p >> 2) & 0x01)
+
+#define enable_stereo(p) (p | (1 << 1))
+#define disable_stereo(p) (p & ~(1 << 1))
+#define get_stereo_status(p) ((p >> 1) & 0x01)
+
+#define enable_limiter(p) (p | (1 << 1))
+#define disable_limiter(p) (p & ~(1 << 1))
+#define get_limiter_status(p) ((p >> 1) & 0x01)
+
+#define enable_pilot(p) (p | (1 << 0))
+#define disable_pilot(p) (p & ~(1 << 0))
+#define get_pilot_status(p) ((p >> 0) & 0x01)
+
+#define enable_acomp(p) (p | (1 << 0))
+#define disable_acomp(p) (p & ~(1 << 0))
+#define get_acomp_status(p) ((p >> 0) & 0x01)
+#define ATTACK_TIME_UNIT 500
+
+#define DEFAULT_RDS_PI 0x00
+#define DEFAULT_RDS_PTY 0x00
+#define DEFAULT_RDS_PS_NAME "Si4713 "
+#define DEFAULT_RDS_RADIO_TEXT DEFAULT_RDS_PS_NAME
+#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_REGION_SETTINGS 0x02
+#define DEFAULT_MUTE 0x00
+#define DEFAULT_POWER_LEVEL 88
+#define DEFAULT_TUNE_RSSI 0xFF
+
+#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));
+#define get_mute(p) (p & 0x01)
+#define set_pty(v, pty) ((v & 0xFC1F) | (pty << 5))
+#define get_pty(v) ((v >> 5) & 0x1F)
+
+
+#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]); \
+ dev_dbg(device, "%s:%s\n", message, str); \
+ }
+#else
+#define DBG_BUFFER(device, message, buffer, size)
+#endif
+
+/*
+ * Values for limiter release time
+ * device release
+ * value time (us)
+ */
+static unsigned long const 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
+ * device release
+ * value time (us)
+ */
+static unsigned long const acomp_rtimes[] = {
+ 0, 100000,
+ 1, 200000,
+ 2, 350000,
+ 3, 525000,
+ 4, 1000000,
+};
+
+/*
+ * Values for region specific configurations
+ * (spacing, bottom and top frequencies, preemphasis)
+ */
+static struct region_info region_configs[] = {
+ /* USA */
+ {
+ .channel_spacing = 20,
+ .bottom_frequency = 8750,
+ .top_frequency = 10800,
+ .preemphasis = 0,
+ .region = 0,
+ },
+ /* Australia */
+ {
+ .channel_spacing = 20,
+ .bottom_frequency = 8750,
+ .top_frequency = 10800,
+ .preemphasis = 1,
+ .region = 1,
+ },
+ /* Europe */
+ {
+ .channel_spacing = 10,
+ .bottom_frequency = 8750,
+ .top_frequency = 10800,
+ .preemphasis = 1,
+ .region = 2,
+ },
+ /* Japan */
+ {
+ .channel_spacing = 10,
+ .bottom_frequency = 7600,
+ .top_frequency = 9000,
+ .preemphasis = 1,
+ .region = 3,
+ },
+ /* Japan wide band */
+ {
+ .channel_spacing = 10,
+ .bottom_frequency = 7600,
+ .top_frequency = 10800,
+ .preemphasis = 1,
+ .region = 4,
+ },
+};
+
+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;
+}
+
+static unsigned long dev_to_usecs(int value, unsigned long const array[],
+ int size)
+{
+ int i;
+ int rval = -EINVAL;
+
+ for (i = 0; i < size / 2; i++)
+ if (array[i * 2] == value) {
+ rval = array[(i * 2) + 1];
+ break;
+ }
+
+ return rval;
+}
+
+/*
+ * 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);
+ 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(&client->dev, "Parameters", data1, argn + 1);
+
+ err = i2c_master_send(client, data1, argn + 1);
+ if (err != argn + 1) {
+ dev_err(&client->dev, "Error while sending command 0x%02x\n",
+ command);
+ return (err > 0) ? -EIO : err;
+ }
+
+ /* Wait response from interrupt */
+ if (!wait_for_completion_timeout(&sdev->work,
+ usecs_to_jiffies(usecs) + 1))
+ dev_dbg(&client->dev, "Device took too much time.\n");
+
+ /* Then get the response */
+ err = i2c_master_recv(client, response, respn);
+ if (err != respn) {
+ dev_err(&client->dev,
+ "Error while reading response for command 0x%02x\n",
+ command);
+ return (err > 0) ? -EIO : err;
+ }
+
+ DBG_BUFFER(&client->dev, "Response", response, respn);
+ if (check_command_failed(response[0]))
+ return -EBUSY;
+
+ return 0;
+}
+
+/*
+ * si4713_read_property - reads a si4713 property
+ * @sdev: si4713_device structure for the device we are communicating
+ * @prop: property identification number
+ */
+static int si4713_read_property(struct si4713_device *sdev, u16 prop)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd);
+ int err;
+ u8 val[SI4713_GET_PROP_NRESP];
+ /*
+ * REVISIT: From Programming Manual
+ * .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;
+
+ dev_dbg(&client->dev, "Status from read prop: 0x%02x\n", val[0]);
+
+ return compose_u16(val[2], val[3]);
+}
+
+/*
+ * 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)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd);
+ int rval;
+ u8 resp[SI4713_SET_PROP_NRESP];
+ /*
+ * REVISIT: From Programming Manual
+ * .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;
+
+ dev_dbg(&client->dev, "Status from write prop: 0x%02x\n",
+ 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];
+ /*
+ * REVISIT: From Programming Manual
+ * .First byte = Enabled interrupts and boot function
+ * .Second byte = Input operation mode
+ */
+ const u8 args[SI4713_PWUP_NARGS] = {
+ SI4713_PWUP_CTSIEN | SI4713_PWUP_GPO2OEN | SI4713_PWUP_FUNC_TX,
+ SI4713_PWUP_OPMOD_ANALOG,
+ };
+
+ if (sdev->power_state)
+ return 0;
+
+ sdev->platform_data->set_power(1);
+ err = si4713_send_command(sdev, SI4713_CMD_POWER_UP,
+ args, ARRAY_SIZE(args),
+ resp, ARRAY_SIZE(resp),
+ TIMEOUT_POWER_UP);
+
+ if (!err) {
+ dev_dbg(&client->dev, "Powerup response: 0x%02x\n",
+ resp[0]);
+ dev_dbg(&client->dev, "Device in power up mode\n");
+ sdev->power_state = POWER_ON;
+
+ err = si4713_write_property(sdev, SI4713_GPO_IEN,
+ SI4713_STC_INT | SI4713_CTS);
+ } else {
+ sdev->platform_data->set_power(0);
+ }
+
+ 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)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd);
+ 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) {
+ dev_dbg(&client->dev, "Power down response: 0x%02x\n",
+ resp[0]);
+ dev_dbg(&client->dev, "Device in reset mode\n");
+ sdev->platform_data->set_power(0);
+ 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
+ */
+#define pr_revision(devicep, buffer) \
+ dev_info(devicep, "Detected %s (0x%02x) Firmware: %d.%d" \
+ " Patch ID: %02x:%02x Component: %d.%d" \
+ " Chip Rev.: %s\n", \
+ buffer[1] == SI4713_PRODUCT_NUMBER ? "Si4713" : "",\
+ buffer[1], \
+ buffer[2] & 0xF, buffer[3] & 0xF, \
+ buffer[4], buffer[5], \
+ buffer[6] & 0xF, buffer[7] & 0xF, \
+ buffer[8] == 0x41 ? "revA" : "unknown")
+static int si4713_checkrev(struct si4713_device *sdev)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd);
+ int rval;
+ u8 resp[SI4713_GETREV_NRESP];
+
+ mutex_lock(&sdev->mutex);
+
+ rval = si4713_send_command(sdev, SI4713_CMD_GET_REV,
+ NULL, 0,
+ resp, ARRAY_SIZE(resp),
+ DEFAULT_TIMEOUT);
+
+ if (rval < 0)
+ goto unlock;
+
+ if (resp[1] == SI4713_PRODUCT_NUMBER) {
+ pr_revision(&client->dev, resp);
+ } else {
+ dev_err(&client->dev, "Invalid product number\n");
+ rval = -EINVAL;
+ }
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+/*
+ * si4713_wait_stc - Waits STC interrupt and clears status bits. Usefull
+ * 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);
+ int err;
+ u8 resp[SI4713_GET_STATUS_NRESP];
+
+ /* Wait response from STC interrupt */
+ if (!wait_for_completion_timeout(&sdev->work,
+ usecs_to_jiffies(TIMEOUT_TX_TUNE) + 1))
+ dev_dbg(&client->dev, "Device took too much time.\n");
+
+ /* Clear status bits */
+ err = si4713_send_command(sdev, SI4713_CMD_GET_INT_STATUS,
+ NULL, 0,
+ resp, ARRAY_SIZE(resp),
+ DEFAULT_TIMEOUT);
+
+ if (err < 0)
+ goto exit;
+
+ dev_dbg(&client->dev, "Status bits: 0x%02x\n", resp[0]);
+
+ if (!(resp[0] & SI4713_STC_INT))
+ err = -EIO;
+
+exit:
+ return err;
+}
+
+/*
+ * 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)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd);
+ int err;
+ u8 val[SI4713_TXFREQ_NRESP];
+ /*
+ * REVISIT: From Programming Manual
+ * .First byte = 0
+ * .Second byte = frequency's MSB
+ * .Third byte = frequency's LSB
+ */
+ const u8 args[SI4713_TXFREQ_NARGS] = {
+ 0x00,
+ msb(frequency),
+ lsb((frequency -
+ (frequency % sdev->region_info.channel_spacing))),
+ };
+
+ if (frequency < sdev->region_info.bottom_frequency ||
+ frequency > sdev->region_info.top_frequency)
+ return -EDOM;
+
+ 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;
+
+ dev_dbg(&client->dev, "Status from tx tune freq: 0x%02x\n",
+ 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 115 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 - 115 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)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd);
+ int err;
+ u8 val[SI4713_TXPWR_NRESP];
+ /*
+ * REVISIT: From Programming Manual
+ * .First byte = 0
+ * .Second byte = 0
+ * .Third byte = power
+ * .Fourth byte = antcap
+ */
+ const u8 args[SI4713_TXPWR_NARGS] = {
+ 0x00,
+ 0x00,
+ power,
+ antcap,
+ };
+
+ if (((power > 0) && (power < SI4713_MIN_POWER)) ||
+ power > SI4713_MAX_POWER || antcap > SI4713_MAX_ANTCAP)
+ return -EDOM;
+
+ 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;
+
+ dev_dbg(&client->dev, "Status from tx tune power: 0x%02x\n",
+ 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)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd);
+ int err;
+ u8 val[SI4713_TXMEA_NRESP];
+ /*
+ * REVISIT: From Programming Manual
+ * .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 -
+ (frequency % sdev->region_info.channel_spacing))),
+ antcap,
+ };
+
+ sdev->tune_rssi = DEFAULT_TUNE_RSSI;
+
+ if (frequency < sdev->region_info.bottom_frequency ||
+ frequency > sdev->region_info.top_frequency ||
+ 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;
+
+ dev_dbg(&client->dev, "Status from tx tune measure: 0x%02x\n",
+ 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)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd);
+ int err;
+ u8 val[SI4713_TXSTATUS_NRESP];
+ /*
+ * REVISIT: From Programming Manual
+ * .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) {
+ dev_dbg(&client->dev,
+ "Status from tx tune status: 0x%02x\n", val[0]);
+ *frequency = compose_u16(val[2], val[3]);
+ sdev->frequency = *frequency;
+ *power = val[5];
+ *antcap = val[6];
+ *noise = val[7];
+ dev_dbg(&client->dev, "Tune status: %d x 10 kHz "
+ "(power %d, antcap %d, rnl %d)\n",
+ *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
+ * @intstatus: returns current interrupt status
+ * @cbavail: returns the number of available circular buffer blocks.
+ * @cbused: returns the number of used circular buffer blocks.
+ * @fifoavail: returns the number of available fifo buffer blocks.
+ * @fifoused: returns the number of used fifo buffer blocks.
+ */
+static int si4713_tx_rds_buff(struct si4713_device *sdev, u8 mode, u16 rdsb,
+ u16 rdsc, u16 rdsd, u8 *intstatus, u8 *cbavail,
+ u8 *cbused, u8 *fifoavail, u8 *fifoused)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd);
+ 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) {
+ dev_dbg(&client->dev,
+ "Status from tx rds buff: 0x%02x\n", val[0]);
+ *intstatus = val[1];
+ *cbavail = val[2];
+ *cbused = val[3];
+ *fifoavail = val[4];
+ *fifoused = val[5];
+ dev_dbg(&client->dev, "rds buffer status: interrupts"
+ " 0x%02x cb avail: %d cb used %d fifo avail"
+ " %d fifo used %d\n", *intstatus, *cbavail,
+ *cbused, *fifoavail, *fifoused);
+ }
+
+ 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)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd);
+ 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;
+
+ dev_dbg(&client->dev, "Status from tx rds ps: 0x%02x\n",
+ val[0]);
+
+ return err;
+}
+
+/*
+ * si4713_init - Sets the device up with default configuration.
+ * @sdev: si4713_device structure for the device we are communicating
+ */
+int si4713_init(struct si4713_device *sdev)
+{
+ int rval;
+
+ rval = si4713_set_rds_pi(sdev, DEFAULT_RDS_PI);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_rds_pty(sdev, DEFAULT_RDS_PTY);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_rds_ps_name(sdev, DEFAULT_RDS_PS_NAME);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_rds_radio_text(sdev, DEFAULT_RDS_RADIO_TEXT);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_rds_enabled(sdev, 1);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_limiter_release_time(sdev, DEFAULT_LIMITER_RTIME);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_limiter_deviation(sdev, DEFAULT_LIMITER_DEV);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_limiter_enabled(sdev, 1);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_pilot_frequency(sdev, DEFAULT_PILOT_FREQUENCY);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_pilot_deviation(sdev, DEFAULT_PILOT_DEVIATION);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_pilot_enabled(sdev, 1);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_stereo_enabled(sdev, 1);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_acomp_attack_time(sdev, DEFAULT_ACOMP_ATIME);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_acomp_release_time(sdev, DEFAULT_ACOMP_RTIME);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_acomp_gain(sdev, DEFAULT_ACOMP_GAIN);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_acomp_threshold(sdev, DEFAULT_ACOMP_THRESHOLD);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_acomp_enabled(sdev, 1);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_region(sdev, DEFAULT_REGION_SETTINGS);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_mute(sdev, DEFAULT_MUTE);
+ if (rval < 0)
+ goto exit;
+
+exit:
+ return rval;
+}
+
+/*
+ * si4713_setup - Sets the device up with current configuration.
+ * @sdev: si4713_device structure for the device we are communicating
+ */
+int si4713_setup(struct si4713_device *sdev)
+{
+ struct si4713_device *tmp;
+ int rval;
+
+ tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
+ if (!tmp)
+ return -ENOMEM;
+
+ /* Get a local copy to avoid race */
+ mutex_lock(&sdev->mutex);
+ memcpy(tmp, sdev, sizeof(*sdev));
+ mutex_unlock(&sdev->mutex);
+
+ rval = si4713_set_rds_pi(sdev, tmp->rds_info.pi);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_rds_pty(sdev, tmp->rds_info.pty);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_rds_ps_name(sdev, tmp->rds_info.ps_name);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_rds_radio_text(sdev, tmp->rds_info.radio_text);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_rds_enabled(sdev, tmp->rds_info.enabled);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_limiter_release_time(sdev,
+ tmp->limiter_info.release_time);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_limiter_deviation(sdev, tmp->limiter_info.deviation);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_limiter_enabled(sdev, tmp->limiter_info.enabled);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_region(sdev, tmp->region_info.region);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_pilot_frequency(sdev, tmp->pilot_info.frequency);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_pilot_deviation(sdev, tmp->pilot_info.deviation);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_pilot_enabled(sdev, tmp->pilot_info.enabled);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_stereo_enabled(sdev, tmp->stereo);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_acomp_attack_time(sdev, tmp->acomp_info.attack_time);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_acomp_release_time(sdev,
+ tmp->acomp_info.release_time);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_acomp_gain(sdev, tmp->acomp_info.gain);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_acomp_threshold(sdev, tmp->acomp_info.threshold);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_acomp_enabled(sdev, tmp->acomp_info.enabled);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_mute(sdev, tmp->mute);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_frequency(sdev, tmp->frequency ? tmp->frequency :
+ tmp->region_info.bottom_frequency);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_power_level(sdev, tmp->power_level ?
+ tmp->power_level :
+ DEFAULT_POWER_LEVEL);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_antenna_capacitor(sdev, tmp->antenna_capacitor);
+
+exit:
+ kfree(tmp);
+ return rval;
+}
+
+int si4713_set_power_level(struct si4713_device *sdev, u8 power_level)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_tx_tune_power(sdev, power_level,
+ sdev->antenna_capacitor);
+
+ if (rval < 0)
+ goto unlock;
+ }
+
+ sdev->power_level = power_level;
+ rval = 0;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_get_power_level(struct si4713_device *sdev)
+{
+ int rval;
+ u16 f = 0;
+ u8 p, a, n;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_tx_tune_status(sdev, 0x00, &f, &p, &a, &n);
+
+ if (rval < 0)
+ goto unlock;
+
+ sdev->power_level = p;
+ }
+
+ rval = sdev->power_level;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_set_antenna_capacitor(struct si4713_device *sdev, u8 value)
+{
+ int rval = 0;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state)
+ rval = si4713_tx_tune_power(sdev, sdev->power_level, value);
+
+ if (!rval)
+ sdev->antenna_capacitor = value;
+
+ mutex_unlock(&sdev->mutex);
+
+ return rval;
+}
+
+int si4713_get_antenna_capacitor(struct si4713_device *sdev)
+{
+ int rval = -EINVAL;
+ u16 f = 0;
+ u8 p, a, n;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_tx_tune_status(sdev, 0x00, &f, &p, &a, &n);
+
+ if (rval < 0)
+ goto unlock;
+
+ rval = a;
+ }
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_set_power_state(struct si4713_device *sdev, u8 value)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+
+ if (value)
+ rval = si4713_powerup(sdev);
+ else
+ rval = si4713_powerdown(sdev);
+
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_probe(struct si4713_device *sdev)
+{
+ int rval;
+
+ rval = si4713_set_power_state(sdev, POWER_ON);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_checkrev(sdev);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_init(sdev);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_power_state(sdev, POWER_OFF);
+
+exit:
+ return rval;
+}
+
+int si4713_set_frequency(struct si4713_device *sdev, u16 frequency)
+{
+ int rval = 0;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_tx_tune_freq(sdev, frequency);
+ if (rval < 0)
+ goto unlock;
+ sdev->frequency = rval;
+ } else {
+ rval = -ENODEV;
+ }
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_get_frequency(struct si4713_device *sdev)
+{
+ int rval;
+ u16 f = 0;
+ u8 p, a, n;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_tx_tune_status(sdev, 0x00, &f, &p, &a, &n);
+
+ if (rval < 0)
+ goto unlock;
+
+ sdev->frequency = f;
+ }
+
+ rval = sdev->frequency;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_set_mute(struct si4713_device *sdev, u16 mute)
+{
+ int rval = 0;
+
+ mute = set_mute(mute);
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state)
+ rval = si4713_write_property(sdev,
+ SI4713_TX_LINE_INPUT_MUTE, mute);
+
+ if (rval >= 0)
+ sdev->mute = get_mute(mute);
+
+ mutex_unlock(&sdev->mutex);
+
+ return rval;
+}
+
+int si4713_get_mute(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_LINE_INPUT_MUTE);
+
+ if (rval < 0)
+ goto unlock;
+
+ sdev->mute = rval;
+ }
+
+ rval = get_mute(sdev->mute);
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_set_rds_pi(struct si4713_device *sdev, u16 pi)
+{
+ int rval = 0;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state)
+ rval = si4713_write_property(sdev, SI4713_TX_RDS_PI, pi);
+
+ if (rval >= 0)
+ sdev->rds_info.pi = pi;
+
+ mutex_unlock(&sdev->mutex);
+
+ return rval;
+}
+
+int si4713_get_rds_pi(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_RDS_PI);
+
+ if (rval < 0)
+ goto unlock;
+
+ sdev->rds_info.pi = rval;
+ }
+
+ rval = sdev->rds_info.pi;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_set_rds_pty(struct si4713_device *sdev, u8 pty)
+{
+ int rval = 0;
+ u16 p;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_RDS_PS_MISC);
+ if (rval < 0)
+ goto unlock;
+
+ p = set_pty(rval, pty);
+
+ rval = si4713_write_property(sdev, SI4713_TX_RDS_PS_MISC, p);
+ if (rval < 0)
+ goto unlock;
+ }
+
+ sdev->rds_info.pty = pty;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_get_rds_pty(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_RDS_PS_MISC);
+
+ if (rval < 0)
+ goto unlock;
+
+ sdev->rds_info.pty = get_pty(rval);
+ }
+
+ rval = sdev->rds_info.pty;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_set_rds_ps_name(struct si4713_device *sdev, char *ps_name)
+{
+ int rval = 0, i;
+ u8 len = 0;
+ u8 *tmp;
+
+ if (!strlen(ps_name))
+ return -EINVAL;
+
+ tmp = kzalloc(MAX_RDS_PS_NAME + 1, GFP_KERNEL);
+ if (!tmp)
+ return -ENOMEM;
+
+ strncpy(tmp, ps_name, MAX_RDS_PS_NAME);
+
+ mutex_lock(&sdev->mutex);
+
+ 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)),
+ tmp + i);
+ if (rval < 0)
+ goto unlock;
+ }
+
+ /* Setup the size to be sent */
+ len = strlen(tmp) - 1;
+
+ rval = si4713_write_property(sdev,
+ SI4713_TX_RDS_PS_MESSAGE_COUNT,
+ rds_ps_nblocks(len));
+ if (rval < 0)
+ goto unlock;
+
+ rval = si4713_write_property(sdev,
+ SI4713_TX_RDS_PS_REPEAT_COUNT,
+ DEFAULT_RDS_PS_REPEAT_COUNT * 2);
+ if (rval < 0)
+ goto unlock;
+ }
+
+ strncpy(sdev->rds_info.ps_name, tmp, MAX_RDS_PS_NAME);
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ kfree(tmp);
+ return rval;
+}
+
+int si4713_get_rds_ps_name(struct si4713_device *sdev, char *ps_name)
+{
+ mutex_lock(&sdev->mutex);
+ strncpy(ps_name, sdev->rds_info.ps_name, MAX_RDS_PS_NAME);
+ mutex_unlock(&sdev->mutex);
+
+ return 0;
+}
+
+int si4713_set_rds_radio_text(struct si4713_device *sdev, char *radio_text)
+{
+ int rval = 0, i;
+ u16 t_index = 0;
+ u8 s, a, u, fa, fu, b_index = 0, cr_inserted = 0;
+ u8 *tmp;
+
+ if (!strlen(radio_text))
+ return -EINVAL;
+
+ tmp = kzalloc(MAX_RDS_RADIO_TEXT + 1, GFP_KERNEL);
+ if (!tmp)
+ return -ENOMEM;
+
+ strncpy(tmp, radio_text, MAX_RDS_RADIO_TEXT);
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_tx_rds_buff(sdev, RDS_BLOCK_CLEAR, 0, 0, 0,
+ &s, &a, &u, &fa, &fu);
+ if (rval < 0)
+ goto unlock;
+ 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 (!tmp[t_index + i] ||
+ tmp[t_index + i] == \
+ RDS_CARRIAGE_RETURN) {
+ tmp[t_index + i] =
+ RDS_CARRIAGE_RETURN;
+ cr_inserted = 1;
+ break;
+ }
+ }
+ }
+
+ rval = si4713_tx_rds_buff(sdev, RDS_BLOCK_LOAD,
+ compose_u16(RDS_RADIOTEXT_2A,
+ b_index++),
+ compose_u16(tmp[t_index],
+ tmp[t_index + 1]),
+ compose_u16(tmp[t_index + 2],
+ tmp[t_index + 3]),
+ &s, &a, &u, &fa, &fu);
+ if (rval < 0)
+ goto unlock;
+
+ t_index += RDS_RADIOTEXT_BLK_SIZE;
+
+ if (cr_inserted)
+ break;
+ } while (u < a);
+ }
+
+ strncpy(sdev->rds_info.radio_text, tmp, MAX_RDS_RADIO_TEXT);
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ kfree(tmp);
+ return rval;
+}
+
+int si4713_get_rds_radio_text(struct si4713_device *sdev, char *radio_text)
+{
+ mutex_lock(&sdev->mutex);
+ strncpy(radio_text, sdev->rds_info.radio_text, MAX_RDS_RADIO_TEXT);
+ mutex_unlock(&sdev->mutex);
+
+ return 0;
+}
+
+int si4713_set_rds_enabled(struct si4713_device *sdev, u8 enabled)
+{
+ int rval = 0;
+ u16 p;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_COMPONENT_ENABLE);
+ if (rval < 0)
+ goto unlock;
+
+ p = rval;
+ if (enabled)
+ p = enable_rds(p);
+ else
+ p = disable_rds(p);
+
+ rval = si4713_write_property(sdev, SI4713_TX_COMPONENT_ENABLE,
+ p);
+ if (rval < 0)
+ goto unlock;
+
+ if (enabled) {
+ rval = si4713_write_property(sdev,
+ SI4713_TX_RDS_DEVIATION,
+ DEFAULT_RDS_DEVIATION);
+ if (rval < 0)
+ goto unlock;
+ }
+ }
+
+ sdev->rds_info.enabled = enabled & 0x01;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_get_rds_enabled(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_COMPONENT_ENABLE);
+ if (rval < 0)
+ goto unlock;
+
+ sdev->rds_info.enabled = get_rds_status(rval);
+ }
+
+ rval = sdev->rds_info.enabled;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_get_region_bottom_frequency(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+ /* Device works in 10kHz units */
+ rval = sdev->region_info.bottom_frequency * 10;
+ mutex_unlock(&sdev->mutex);
+
+ return rval;
+}
+
+int si4713_get_region_top_frequency(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+ /* Device works in 10kHz units */
+ rval = sdev->region_info.top_frequency * 10;
+ mutex_unlock(&sdev->mutex);
+
+ return rval;
+}
+
+int si4713_set_region_preemphasis(struct si4713_device *sdev, u8 preemphasis)
+{
+ int rval = 0;
+
+ switch (preemphasis) {
+ case PREEMPHASIS_USA:
+ preemphasis = FMPE_USA;
+ break;
+ case PREEMPHASIS_EU:
+ preemphasis = FMPE_EU;
+ break;
+ case PREEMPHASIS_DISABLED:
+ preemphasis = FMPE_DISABLED;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state)
+ rval = si4713_write_property(sdev, SI4713_TX_PREEMPHASIS,
+ preemphasis);
+
+ if (rval >= 0)
+ sdev->region_info.preemphasis = preemphasis;
+
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_get_region_preemphasis(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_PREEMPHASIS);
+
+ if (rval < 0)
+ goto unlock;
+
+ sdev->region_info.preemphasis = rval;
+ }
+
+ switch (sdev->region_info.preemphasis) {
+ case FMPE_USA:
+ rval = PREEMPHASIS_USA;
+ break;
+ case FMPE_EU:
+ rval = PREEMPHASIS_EU;
+ break;
+ case FMPE_DISABLED:
+ rval = PREEMPHASIS_DISABLED;
+ break;
+ default:
+ rval = -EINVAL;
+ goto unlock;
+ }
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_get_region_channel_spacing(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+ /* Device works in 10kHz units */
+ rval = sdev->region_info.channel_spacing * 10;
+ mutex_unlock(&sdev->mutex);
+
+ return rval;
+}
+
+int si4713_set_region(struct si4713_device *sdev, u8 region)
+{
+ int rval = 0;
+ u16 new_frequency = 0;
+
+ if (region > ARRAY_SIZE(region_configs))
+ return -EINVAL;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->frequency < region_configs[region].bottom_frequency ||
+ sdev->frequency > region_configs[region].top_frequency)
+ new_frequency = region_configs[region].bottom_frequency;
+
+ memcpy(&sdev->region_info, ®ion_configs[region],
+ sizeof(sdev->region_info));
+
+ if (sdev->power_state) {
+ if (new_frequency > 0) {
+ rval = si4713_tx_tune_freq(sdev, new_frequency);
+
+ if (rval < 0)
+ goto unlock;
+
+ new_frequency = rval;
+ }
+
+ rval = si4713_write_property(sdev, SI4713_TX_PREEMPHASIS,
+ region_configs[region].preemphasis);
+ if (rval < 0)
+ goto unlock;
+ }
+
+ sdev->frequency = new_frequency;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_get_region(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+ rval = sdev->region_info.region;
+ mutex_unlock(&sdev->mutex);
+
+ return rval;
+}
+
+int si4713_set_limiter_enabled(struct si4713_device *sdev, u8 enabled)
+{
+ int rval = 0;
+ u16 p;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_ACOMP_ENABLE);
+ if (rval < 0)
+ goto unlock;
+
+ p = rval;
+ if (enabled)
+ p = enable_limiter(p);
+ else
+ p = disable_limiter(p);
+
+ rval = si4713_write_property(sdev, SI4713_TX_ACOMP_ENABLE,
+ p);
+
+ if (rval < 0)
+ goto unlock;
+ }
+
+ sdev->limiter_info.enabled = enabled & 0x01;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_get_limiter_enabled(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_ACOMP_ENABLE);
+ if (rval < 0)
+ goto unlock;
+
+ sdev->limiter_info.enabled = get_limiter_status(rval);
+ }
+
+ rval = sdev->limiter_info.enabled;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_set_limiter_deviation(struct si4713_device *sdev,
+ unsigned long deviation)
+{
+ int rval = 0;
+
+ /* Device receives in 10Hz units */
+ deviation /= 10;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state)
+ rval = si4713_write_property(sdev, SI4713_TX_AUDIO_DEVIATION,
+ deviation);
+
+ /* Device returns in 10Hz units */
+ if (rval >= 0)
+ sdev->limiter_info.deviation = deviation * 10;
+
+ mutex_unlock(&sdev->mutex);
+
+ return rval;
+}
+
+long si4713_get_limiter_deviation(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_AUDIO_DEVIATION);
+
+ if (rval < 0)
+ goto unlock;
+
+ /* Device returns in 10Hz units */
+ sdev->limiter_info.deviation = rval * 10;
+ }
+
+ rval = sdev->limiter_info.deviation;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_set_limiter_release_time(struct si4713_device *sdev,
+ unsigned long rtime)
+{
+ int rval;
+
+ rval = usecs_to_dev(rtime, limiter_times, ARRAY_SIZE(limiter_times));
+ if (rval < 0)
+ goto exit;
+
+ rtime = rval;
+ rval = 0;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state)
+ rval = si4713_write_property(sdev,
+ SI4713_TX_LIMITER_RELEASE_TIME, rtime);
+
+ if (rval >= 0)
+ sdev->limiter_info.release_time = dev_to_usecs(rtime,
+ limiter_times,
+ ARRAY_SIZE(limiter_times));
+
+ mutex_unlock(&sdev->mutex);
+
+exit:
+ return rval;
+}
+
+long si4713_get_limiter_release_time(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev,
+ SI4713_TX_LIMITER_RELEASE_TIME);
+
+ if (rval < 0)
+ goto unlock;
+
+ sdev->limiter_info.release_time = dev_to_usecs(rval,
+ limiter_times,
+ ARRAY_SIZE(limiter_times));
+ }
+
+ rval = sdev->limiter_info.release_time;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_set_stereo_enabled(struct si4713_device *sdev, u8 enabled)
+{
+ int rval = 0;
+ u16 p;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_COMPONENT_ENABLE);
+ if (rval < 0)
+ goto unlock;
+
+ p = rval;
+ if (enabled)
+ p = enable_stereo(p);
+ else
+ p = disable_stereo(p);
+
+ rval = si4713_write_property(sdev, SI4713_TX_COMPONENT_ENABLE,
+ p);
+
+ if (rval < 0)
+ goto unlock;
+ }
+
+ sdev->stereo = enabled & 0x01;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_get_stereo_enabled(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_COMPONENT_ENABLE);
+ if (rval < 0)
+ goto unlock;
+
+ sdev->stereo = get_stereo_status(rval);
+ }
+
+ rval = sdev->stereo;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_set_pilot_enabled(struct si4713_device *sdev, u8 enabled)
+{
+ int rval = 0;
+ u16 p;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_COMPONENT_ENABLE);
+ if (rval < 0)
+ goto unlock;
+
+ p = rval;
+ if (enabled)
+ p = enable_pilot(p);
+ else
+ p = disable_pilot(p);
+
+ rval = si4713_write_property(sdev, SI4713_TX_COMPONENT_ENABLE,
+ p);
+
+ if (rval < 0)
+ goto unlock;
+ }
+
+ sdev->pilot_info.enabled = enabled & 0x01;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_get_pilot_enabled(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_COMPONENT_ENABLE);
+ if (rval < 0)
+ goto unlock;
+
+ sdev->pilot_info.enabled = get_pilot_status(rval);
+ }
+
+ rval = sdev->pilot_info.enabled;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_set_pilot_deviation(struct si4713_device *sdev,
+ unsigned long deviation)
+{
+ int rval = 0;
+
+ /* Device receives in 10Hz units */
+ deviation /= 10;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state)
+ rval = si4713_write_property(sdev, SI4713_TX_PILOT_DEVIATION,
+ deviation);
+
+ /* Device returns in 10Hz units */
+ if (rval >= 0)
+ sdev->pilot_info.deviation = deviation * 10;
+
+ mutex_unlock(&sdev->mutex);
+
+ return rval;
+}
+
+long si4713_get_pilot_deviation(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_PILOT_DEVIATION);
+
+ if (rval < 0)
+ goto unlock;
+
+ /* Device returns in 10Hz units */
+ sdev->pilot_info.deviation = rval * 10;
+ }
+
+ rval = sdev->pilot_info.deviation;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_set_pilot_frequency(struct si4713_device *sdev, u16 freq)
+{
+ int rval = 0;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state)
+ rval = si4713_write_property(sdev, SI4713_TX_PILOT_FREQUENCY,
+ freq);
+
+ if (rval >= 0)
+ sdev->pilot_info.frequency = freq;
+
+ mutex_unlock(&sdev->mutex);
+
+ return rval;
+}
+
+int si4713_get_pilot_frequency(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_PILOT_FREQUENCY);
+
+ if (rval < 0)
+ goto unlock;
+
+ sdev->pilot_info.frequency = rval;
+ }
+
+ rval = sdev->pilot_info.frequency;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_set_acomp_enabled(struct si4713_device *sdev, u8 enabled)
+{
+ int rval = 0;
+ u16 p;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_ACOMP_ENABLE);
+ if (rval < 0)
+ goto unlock;
+
+ p = rval;
+ if (enabled)
+ p = enable_acomp(p);
+ else
+ p = disable_acomp(p);
+
+ rval = si4713_write_property(sdev, SI4713_TX_ACOMP_ENABLE, p);
+
+ if (rval < 0)
+ goto unlock;
+ }
+
+ sdev->acomp_info.enabled = enabled & 0x01;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_get_acomp_enabled(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_ACOMP_ENABLE);
+ if (rval < 0)
+ goto unlock;
+
+ sdev->acomp_info.enabled = get_acomp_status(rval);
+ }
+
+ rval = sdev->acomp_info.enabled;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_set_acomp_gain(struct si4713_device *sdev, u8 gain)
+{
+ int rval = 0;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state)
+ rval = si4713_write_property(sdev, SI4713_TX_ACOMP_GAIN, gain);
+
+ if (rval >= 0)
+ sdev->acomp_info.gain = gain;
+
+ mutex_unlock(&sdev->mutex);
+
+ return rval;
+}
+
+int si4713_get_acomp_gain(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_ACOMP_GAIN);
+
+ if (rval < 0)
+ goto unlock;
+
+ sdev->acomp_info.gain = rval;
+ }
+
+ rval = sdev->acomp_info.gain;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_set_acomp_threshold(struct si4713_device *sdev, s8 threshold)
+{
+ int rval = 0;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state)
+ rval = si4713_write_property(sdev, SI4713_TX_ACOMP_THRESHOLD,
+ threshold);
+
+ if (rval >= 0)
+ sdev->acomp_info.threshold = threshold;
+
+ mutex_unlock(&sdev->mutex);
+
+ return rval;
+}
+
+int si4713_get_acomp_threshold(struct si4713_device *sdev, s8 *threshold)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_ACOMP_THRESHOLD);
+
+ if (rval < 0)
+ goto unlock;
+
+ sdev->acomp_info.threshold = rval;
+ }
+
+ *threshold = sdev->acomp_info.threshold;
+ rval = 0;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_set_acomp_release_time(struct si4713_device *sdev,
+ unsigned long rtime)
+{
+ int rval;
+
+ rval = usecs_to_dev(rtime, acomp_rtimes, ARRAY_SIZE(acomp_rtimes));
+ if (rval < 0)
+ goto exit;
+
+ rtime = rval;
+ rval = 0;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state)
+ rval = si4713_write_property(sdev,
+ SI4713_TX_ACOMP_RELEASE_TIME, rtime);
+
+ if (rval >= 0)
+ sdev->acomp_info.release_time = dev_to_usecs(rtime,
+ acomp_rtimes,
+ ARRAY_SIZE(acomp_rtimes));
+
+ mutex_unlock(&sdev->mutex);
+
+exit:
+ return rval;
+}
+
+long si4713_get_acomp_release_time(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev,
+ SI4713_TX_ACOMP_RELEASE_TIME);
+
+ if (rval < 0)
+ goto unlock;
+
+ sdev->acomp_info.release_time = dev_to_usecs(rval,
+ acomp_rtimes,
+ ARRAY_SIZE(acomp_rtimes));
+ }
+
+ rval = sdev->acomp_info.release_time;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+
+int si4713_set_acomp_attack_time(struct si4713_device *sdev, u16 atime)
+{
+ int rval = 0;
+
+ /* Device receives in 0.5 ms units */
+ atime /= ATTACK_TIME_UNIT;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state)
+ rval = si4713_write_property(sdev,
+ SI4713_TX_ACOMP_ATTACK_TIME, atime);
+
+ if (rval >= 0)
+ sdev->acomp_info.attack_time = atime * ATTACK_TIME_UNIT;
+
+ mutex_unlock(&sdev->mutex);
+
+ return rval;
+}
+
+int si4713_get_acomp_attack_time(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev,
+ SI4713_TX_ACOMP_RELEASE_TIME);
+
+ if (rval < 0)
+ goto unlock;
+
+ sdev->acomp_info.release_time = rval * ATTACK_TIME_UNIT;
+ }
+
+ rval = sdev->acomp_info.attack_time;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_set_tune_measure(struct si4713_device *sdev, u32 frequency)
+{
+ int rval = -ENODEV;
+
+ mutex_lock(&sdev->mutex);
+ if (sdev->power_state)
+ rval = si4713_tx_tune_measure(sdev, frequency / 10, 0);
+ mutex_unlock(&sdev->mutex);
+
+ return rval;
+}
+
+int si4713_get_tune_measure(struct si4713_device *sdev)
+{
+ int rval;
+ u16 f = 0;
+ u8 p, a, n;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_tx_tune_status(sdev, 0x00, &f, &p, &a, &n);
+
+ if (rval < 0)
+ goto unlock;
+
+ sdev->tune_rssi = n;
+ }
+
+ rval = sdev->tune_rssi;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
new file mode 100644
@@ -0,0 +1,295 @@
+/*
+ * drivers/media/radio/si4713.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_H
+#define SI4713_H
+
+#include <media/v4l2-subdev.h>
+
+#include "radio-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
+
+struct rds_info {
+ u16 pi;
+#define MAX_RDS_PTY 31
+ u8 pty;
+#define MAX_RDS_PS_NAME 96
+ u8 ps_name[MAX_RDS_PS_NAME + 1];
+#define MAX_RDS_RADIO_TEXT 384
+ u8 radio_text[MAX_RDS_RADIO_TEXT + 1];
+ u8 enabled;
+};
+
+struct limiter_info {
+#define MAX_LIMITER_RELEASE_TIME 102390
+ unsigned long release_time;
+#define MAX_LIMITER_DEVIATION 90000
+ unsigned long deviation;
+ u8 enabled;
+};
+
+struct pilot_info {
+#define MAX_PILOT_DEVIATION 90000
+ unsigned long deviation;
+#define MAX_PILOT_FREQUENCY 19000
+ u16 frequency;
+ u8 enabled;
+};
+
+struct acomp_info {
+#define MAX_ACOMP_RELEASE_TIME 1000000
+ unsigned long release_time;
+#define MAX_ACOMP_ATTACK_TIME 5000
+ u16 attack_time;
+#define MAX_ACOMP_THRESHOLD 0
+#define MIN_ACOMP_THRESHOLD (-40)
+ s8 threshold;
+#define MAX_ACOMP_GAIN 20
+ u8 gain;
+ u8 enabled;
+};
+
+struct region_info {
+ u16 bottom_frequency;
+ u16 top_frequency;
+ u8 preemphasis;
+ u8 channel_spacing;
+ u8 region;
+};
+
+/*
+ * si4713_device - private data
+ */
+struct si4713_device {
+ /* v4l2_subdev and i2c reference (v4l2_subdev priv data) */
+ struct v4l2_subdev sd;
+ /* private data structures */
+ struct mutex mutex;
+ struct completion work;
+ struct si4713_platform_data *platform_data;
+ struct rds_info rds_info;
+ struct limiter_info limiter_info;
+ struct pilot_info pilot_info;
+ struct acomp_info acomp_info;
+ struct region_info region_info;
+ u16 frequency;
+ u8 mute;
+ u8 power_level;
+ u8 power_state;
+ u8 antenna_capacitor;
+ u8 stereo;
+ u8 tune_rssi;
+};
+
+int si4713_init(struct si4713_device *sdev);
+int si4713_setup(struct si4713_device *sdev);
+int si4713_probe(struct si4713_device *sdev);
+int si4713_set_power_level(struct si4713_device *sdev, u8 power_level);
+int si4713_get_power_level(struct si4713_device *sdev);
+int si4713_set_antenna_capacitor(struct si4713_device *sdev, u8 value);
+int si4713_get_antenna_capacitor(struct si4713_device *sdev);
+int si4713_set_power_state(struct si4713_device *sdev, u8 value);
+int si4713_set_frequency(struct si4713_device *sdev, u16 frequency);
+int si4713_get_frequency(struct si4713_device *sdev);
+int si4713_set_mute(struct si4713_device *sdev, u16 mute);
+int si4713_get_mute(struct si4713_device *sdev);
+int si4713_set_rds_pi(struct si4713_device *sdev, u16 pi);
+int si4713_get_rds_pi(struct si4713_device *sdev);
+int si4713_set_rds_pty(struct si4713_device *sdev, u8 pty);
+int si4713_get_rds_pty(struct si4713_device *sdev);
+int si4713_set_rds_ps_name(struct si4713_device *sdev, char *ps_name);
+int si4713_get_rds_ps_name(struct si4713_device *sdev, char *ps_name);
+int si4713_set_rds_radio_text(struct si4713_device *sdev, char *radio_text);
+int si4713_get_rds_radio_text(struct si4713_device *sdev, char *radio_text);
+int si4713_set_rds_enabled(struct si4713_device *sdev, u8 enabled);
+int si4713_get_rds_enabled(struct si4713_device *sdev);
+int si4713_set_limiter_release_time(struct si4713_device *sdev,
+ unsigned long rtime);
+long si4713_get_limiter_release_time(struct si4713_device *sdev);
+int si4713_set_limiter_deviation(struct si4713_device *sdev,
+ unsigned long deviation);
+long si4713_get_limiter_deviation(struct si4713_device *sdev);
+int si4713_set_limiter_enabled(struct si4713_device *sdev, u8 enabled);
+int si4713_get_limiter_enabled(struct si4713_device *sdev);
+int si4713_set_pilot_frequency(struct si4713_device *sdev, u16 freq);
+int si4713_get_pilot_frequency(struct si4713_device *sdev);
+int si4713_set_pilot_deviation(struct si4713_device *sdev,
+ unsigned long deviation);
+long si4713_get_pilot_deviation(struct si4713_device *sdev);
+int si4713_set_pilot_enabled(struct si4713_device *sdev, u8 enabled);
+int si4713_get_pilot_enabled(struct si4713_device *sdev);
+int si4713_set_stereo_enabled(struct si4713_device *sdev, u8 enabled);
+int si4713_get_stereo_enabled(struct si4713_device *sdev);
+int si4713_set_acomp_enabled(struct si4713_device *sdev, u8 enabled);
+int si4713_get_acomp_enabled(struct si4713_device *sdev);
+int si4713_set_acomp_threshold(struct si4713_device *sdev, s8 threshold);
+int si4713_get_acomp_threshold(struct si4713_device *sdev, s8 *threshold);
+int si4713_set_acomp_gain(struct si4713_device *sdev, u8 gain);
+int si4713_get_acomp_gain(struct si4713_device *sdev);
+int si4713_set_acomp_release_time(struct si4713_device *sdev,
+ unsigned long rtime);
+long si4713_get_acomp_release_time(struct si4713_device *sdev);
+int si4713_set_acomp_attack_time(struct si4713_device *sdev, u16 atime);
+int si4713_get_acomp_attack_time(struct si4713_device *sdev);
+int si4713_get_region_bottom_frequency(struct si4713_device *sdev);
+int si4713_get_region_top_frequency(struct si4713_device *sdev);
+int si4713_get_region_channel_spacing(struct si4713_device *sdev);
+int si4713_set_region_preemphasis(struct si4713_device *sdev, u8 preemphasis);
+int si4713_get_region_preemphasis(struct si4713_device *sdev);
+int si4713_set_region(struct si4713_device *sdev, u8 region);
+int si4713_get_region(struct si4713_device *sdev);
+int si4713_set_tune_measure(struct si4713_device *sdev, u32 frequency);
+int si4713_get_tune_measure(struct si4713_device *sdev);
+#endif /* ifndef SI4713_H */
This patch adds files to control si4713 devices. Internal functions to control device properties and initialization procedures are into these files. Also, a v4l2 subdev interface is also exported. This way other drivers can use this as v4l2 i2c subdevice. Signed-off-by: Eduardo Valentin <eduardo.valentin@nokia.com> --- drivers/media/radio/si4713-subdev.c | 1045 ++++++++++++++++ drivers/media/radio/si4713.c | 2250 +++++++++++++++++++++++++++++++++++ drivers/media/radio/si4713.h | 295 +++++ 3 files changed, 3590 insertions(+), 0 deletions(-) create mode 100644 drivers/media/radio/si4713-subdev.c create mode 100644 drivers/media/radio/si4713.c create mode 100644 drivers/media/radio/si4713.h