--- /dev/null
+/*
+ * drivers/media/radio/si4713.c
+ *
+ * Silicon Labs Si4713 FM Radio Transmitter I2C commands.
+ *
+ * Copyright (c) 2008 Instituto Nokia de Tecnologia - INdT
+ * Author: Eduardo Valentin <eduardo.valentin@indt.org.br>
+ *
+ * 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 DEFAULT_TONE_FREQUENCY 0x00
+#define DEFAULT_TONE_DEVIATION 0x00
+#define DEFAULT_TONE_ON_TIME 0x00
+#define DEFAULT_TONE_OFF_TIME 0x00
+
+#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 = sdev->client;
+ 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)
+{
+ 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(&sdev->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)
+{
+ 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(&sdev->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)
+{
+ 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(&sdev->client->dev, "Powerup response: 0x%02x\n",
+ resp[0]);
+ dev_dbg(&sdev->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)
+{
+ 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(&sdev->client->dev, "Power down response: 0x%02x\n",
+ resp[0]);
+ dev_dbg(&sdev->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)
+{
+ 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(&sdev->client->dev, resp);
+ } else {
+ dev_err(&sdev->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)
+{
+ 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(&sdev->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(&sdev->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)
+{
+ 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(&sdev->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)
+{
+ 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(&sdev->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)
+{
+ 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(&sdev->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)
+{
+ 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(&sdev->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(&sdev->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)
+{
+ 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(&sdev->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(&sdev->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)
+{
+ 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(&sdev->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;
+
+ rval = si4713_set_tone_frequency(sdev, DEFAULT_TONE_FREQUENCY);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_tone_deviation(sdev, DEFAULT_TONE_DEVIATION);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_tone_on_time(sdev, DEFAULT_TONE_ON_TIME);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_tone_off_time(sdev, DEFAULT_TONE_OFF_TIME);
+ 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_tone_frequency(sdev, tmp->tone_info.frequency);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_tone_deviation(sdev, tmp->tone_info.deviation);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_tone_on_time(sdev, tmp->tone_info.on_time);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_set_tone_off_time(sdev, tmp->tone_info.off_time);
+ 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_set_power_state(sdev, POWER_OFF);
+ if (rval < 0)
+ goto exit;
+
+ rval = si4713_init(sdev);
+
+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_tone_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_TONE_DEVIATION,
+ deviation);
+
+ /* Device returns in 10Hz units */
+ if (rval >= 0)
+ sdev->tone_info.deviation = deviation * 10;
+
+ mutex_unlock(&sdev->mutex);
+
+ return rval;
+}
+
+long si4713_get_tone_deviation(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_TONE_DEVIATION);
+
+ if (rval < 0)
+ goto unlock;
+
+ /* Device returns in 10Hz units */
+ sdev->tone_info.deviation = rval * 10;
+ }
+
+ rval = sdev->tone_info.deviation;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_set_tone_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_TONE_FREQUENCY,
+ freq);
+
+ if (rval >= 0)
+ sdev->tone_info.frequency = freq;
+
+ mutex_unlock(&sdev->mutex);
+
+ return rval;
+}
+
+int si4713_get_tone_frequency(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_TONE_FREQUENCY);
+
+ if (rval < 0)
+ goto unlock;
+
+ sdev->tone_info.frequency = rval;
+ }
+
+ rval = sdev->tone_info.frequency;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_set_tone_on_time(struct si4713_device *sdev, u16 on_time)
+{
+ int rval = 0;
+
+ /* Device receives in 2ms units */
+ on_time >>= 1;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state)
+ rval = si4713_write_property(sdev, SI4713_TX_TONE_ON_TIME,
+ on_time);
+
+ /* Device returns in 2ms units */
+ if (rval >= 0)
+ sdev->tone_info.on_time = on_time << 1;
+
+ mutex_unlock(&sdev->mutex);
+
+ return rval;
+}
+
+int si4713_get_tone_on_time(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_TONE_ON_TIME);
+
+ if (rval < 0)
+ goto unlock;
+
+ /* Device returns in 2ms units */
+ sdev->tone_info.on_time = rval << 1;
+ }
+
+ rval = sdev->tone_info.on_time;
+
+unlock:
+ mutex_unlock(&sdev->mutex);
+ return rval;
+}
+
+int si4713_set_tone_off_time(struct si4713_device *sdev, u16 off_time)
+{
+ int rval = 0;
+
+ /* Device receives in 2ms units */
+ off_time >>= 1;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state)
+ rval = si4713_write_property(sdev, SI4713_TX_TONE_OFF_TIME,
+ off_time);
+
+ /* Device returns in 2ms units */
+ if (rval >= 0)
+ sdev->tone_info.off_time = off_time << 1;
+
+ mutex_unlock(&sdev->mutex);
+
+ return rval;
+}
+
+int si4713_get_tone_off_time(struct si4713_device *sdev)
+{
+ int rval;
+
+ mutex_lock(&sdev->mutex);
+
+ if (sdev->power_state) {
+ rval = si4713_read_property(sdev, SI4713_TX_TONE_OFF_TIME);
+
+ if (rval < 0)
+ goto unlock;
+
+ /* Device returns in 2ms units */
+ sdev->tone_info.off_time = rval << 1;
+ }
+
+ rval = sdev->tone_info.off_time;
+
+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;
+}
projects / h-e-n / blobdiff