diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/media/radio/si4713-i2c.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/media/radio/si4713-i2c.c | 2109 |
1 files changed, 0 insertions, 2109 deletions
diff --git a/ANDROID_3.4.5/drivers/media/radio/si4713-i2c.c b/ANDROID_3.4.5/drivers/media/radio/si4713-i2c.c deleted file mode 100644 index b898c892..00000000 --- a/ANDROID_3.4.5/drivers/media/radio/si4713-i2c.c +++ /dev/null @@ -1,2109 +0,0 @@ -/* - * drivers/media/radio/si4713-i2c.c - * - * Silicon Labs Si4713 FM Radio Transmitter I2C commands. - * - * Copyright (c) 2009 Nokia Corporation - * Contact: Eduardo Valentin <eduardo.valentin@nokia.com> - * - * 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/interrupt.h> -#include <linux/i2c.h> -#include <linux/slab.h> -#include <linux/gpio.h> -#include <linux/regulator/consumer.h> -#include <linux/module.h> -#include <media/v4l2-device.h> -#include <media/v4l2-ioctl.h> -#include <media/v4l2-common.h> - -#include "si4713-i2c.h" - -/* module parameters */ -static int debug; -module_param(debug, int, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(debug, "Debug level (0 - 2)"); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Eduardo Valentin <eduardo.valentin@nokia.com>"); -MODULE_DESCRIPTION("I2C driver for Si4713 FM Radio Transmitter"); -MODULE_VERSION("0.0.1"); - -static const char *si4713_supply_names[SI4713_NUM_SUPPLIES] = { - "vio", - "vdd", -}; - -#define DEFAULT_RDS_PI 0x00 -#define DEFAULT_RDS_PTY 0x00 -#define DEFAULT_RDS_PS_NAME "" -#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_MUTE 0x01 -#define DEFAULT_POWER_LEVEL 88 -#define DEFAULT_FREQUENCY 8800 -#define DEFAULT_PREEMPHASIS FMPE_EU -#define DEFAULT_TUNE_RNL 0xFF - -#define to_si4713_device(sd) container_of(sd, struct si4713_device, sd) - -/* frequency domain transformation (using times 10 to avoid floats) */ -#define FREQDEV_UNIT 100000 -#define FREQV4L2_MULTI 625 -#define si4713_to_v4l2(f) ((f * FREQDEV_UNIT) / FREQV4L2_MULTI) -#define v4l2_to_si4713(f) ((f * FREQV4L2_MULTI) / FREQDEV_UNIT) -#define FREQ_RANGE_LOW 7600 -#define FREQ_RANGE_HIGH 10800 - -#define MAX_ARGS 7 - -#define RDS_BLOCK 8 -#define RDS_BLOCK_CLEAR 0x03 -#define RDS_BLOCK_LOAD 0x04 -#define RDS_RADIOTEXT_2A 0x20 -#define RDS_RADIOTEXT_BLK_SIZE 4 -#define RDS_RADIOTEXT_INDEX_MAX 0x0F -#define RDS_CARRIAGE_RETURN 0x0D - -#define rds_ps_nblocks(len) ((len / RDS_BLOCK) + (len % RDS_BLOCK ? 1 : 0)) - -#define get_status_bit(p, b, m) (((p) & (m)) >> (b)) -#define set_bits(p, v, b, m) (((p) & ~(m)) | ((v) << (b))) - -#define ATTACK_TIME_UNIT 500 - -#define POWER_OFF 0x00 -#define POWER_ON 0x01 - -#define msb(x) ((u8)((u16) x >> 8)) -#define lsb(x) ((u8)((u16) x & 0x00FF)) -#define compose_u16(msb, lsb) (((u16)msb << 8) | lsb) -#define check_command_failed(status) (!(status & SI4713_CTS) || \ - (status & SI4713_ERR)) -/* mute definition */ -#define set_mute(p) ((p & 1) | ((p & 1) << 1)); -#define get_mute(p) (p & 0x01) - -#ifdef DEBUG -#define DBG_BUFFER(device, message, buffer, size) \ - { \ - int i; \ - char str[(size)*5]; \ - for (i = 0; i < size; i++) \ - sprintf(str + i * 5, " 0x%02x", buffer[i]); \ - v4l2_dbg(2, debug, device, "%s:%s\n", message, str); \ - } -#else -#define DBG_BUFFER(device, message, buffer, size) -#endif - -/* - * Values for limiter release time (sorted by second column) - * device release - * value time (us) - */ -static long limiter_times[] = { - 2000, 250, - 1000, 500, - 510, 1000, - 255, 2000, - 170, 3000, - 127, 4020, - 102, 5010, - 85, 6020, - 73, 7010, - 64, 7990, - 57, 8970, - 51, 10030, - 25, 20470, - 17, 30110, - 13, 39380, - 10, 51190, - 8, 63690, - 7, 73140, - 6, 85330, - 5, 102390, -}; - -/* - * Values for audio compression release time (sorted by second column) - * device release - * value time (us) - */ -static unsigned long acomp_rtimes[] = { - 0, 100000, - 1, 200000, - 2, 350000, - 3, 525000, - 4, 1000000, -}; - -/* - * Values for preemphasis (sorted by second column) - * device preemphasis - * value value (v4l2) - */ -static unsigned long preemphasis_values[] = { - FMPE_DISABLED, V4L2_PREEMPHASIS_DISABLED, - FMPE_EU, V4L2_PREEMPHASIS_50_uS, - FMPE_USA, V4L2_PREEMPHASIS_75_uS, -}; - -static int usecs_to_dev(unsigned long usecs, unsigned long const array[], - int size) -{ - int i; - int rval = -EINVAL; - - for (i = 0; i < size / 2; i++) - if (array[(i * 2) + 1] >= usecs) { - rval = array[i * 2]; - break; - } - - return rval; -} - -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_handler: IRQ handler, just complete work */ -static irqreturn_t si4713_handler(int irq, void *dev) -{ - struct si4713_device *sdev = dev; - - v4l2_dbg(2, debug, &sdev->sd, - "%s: sending signal to completion work.\n", __func__); - complete(&sdev->work); - - return IRQ_HANDLED; -} - -/* - * si4713_send_command - sends a command to si4713 and waits its response - * @sdev: si4713_device structure for the device we are communicating - * @command: command id - * @args: command arguments we are sending (up to 7) - * @argn: actual size of @args - * @response: buffer to place the expected response from the device (up to 15) - * @respn: actual size of @response - * @usecs: amount of time to wait before reading the response (in usecs) - */ -static int si4713_send_command(struct si4713_device *sdev, const u8 command, - const u8 args[], const int argn, - u8 response[], const int respn, const int usecs) -{ - struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd); - u8 data1[MAX_ARGS + 1]; - int err; - - if (!client->adapter) - return -ENODEV; - - /* First send the command and its arguments */ - data1[0] = command; - memcpy(data1 + 1, args, argn); - DBG_BUFFER(&sdev->sd, "Parameters", data1, argn + 1); - - err = i2c_master_send(client, data1, argn + 1); - if (err != argn + 1) { - v4l2_err(&sdev->sd, "Error while sending command 0x%02x\n", - command); - return (err > 0) ? -EIO : err; - } - - /* Wait response from interrupt */ - if (!wait_for_completion_timeout(&sdev->work, - usecs_to_jiffies(usecs) + 1)) - v4l2_warn(&sdev->sd, - "(%s) Device took too much time to answer.\n", - __func__); - - /* Then get the response */ - err = i2c_master_recv(client, response, respn); - if (err != respn) { - v4l2_err(&sdev->sd, - "Error while reading response for command 0x%02x\n", - command); - return (err > 0) ? -EIO : err; - } - - DBG_BUFFER(&sdev->sd, "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 - * @pv: property value to be returned on success - */ -static int si4713_read_property(struct si4713_device *sdev, u16 prop, u32 *pv) -{ - int err; - u8 val[SI4713_GET_PROP_NRESP]; - /* - * .First byte = 0 - * .Second byte = property's MSB - * .Third byte = property's LSB - */ - const u8 args[SI4713_GET_PROP_NARGS] = { - 0x00, - msb(prop), - lsb(prop), - }; - - err = si4713_send_command(sdev, SI4713_CMD_GET_PROPERTY, - args, ARRAY_SIZE(args), val, - ARRAY_SIZE(val), DEFAULT_TIMEOUT); - - if (err < 0) - return err; - - *pv = compose_u16(val[2], val[3]); - - v4l2_dbg(1, debug, &sdev->sd, - "%s: property=0x%02x value=0x%02x status=0x%02x\n", - __func__, prop, *pv, val[0]); - - return err; -} - -/* - * si4713_write_property - modifies a si4713 property - * @sdev: si4713_device structure for the device we are communicating - * @prop: property identification number - * @val: new value for that property - */ -static int si4713_write_property(struct si4713_device *sdev, u16 prop, u16 val) -{ - int rval; - u8 resp[SI4713_SET_PROP_NRESP]; - /* - * .First byte = 0 - * .Second byte = property's MSB - * .Third byte = property's LSB - * .Fourth byte = value's MSB - * .Fifth byte = value's LSB - */ - const u8 args[SI4713_SET_PROP_NARGS] = { - 0x00, - msb(prop), - lsb(prop), - msb(val), - lsb(val), - }; - - rval = si4713_send_command(sdev, SI4713_CMD_SET_PROPERTY, - args, ARRAY_SIZE(args), - resp, ARRAY_SIZE(resp), - DEFAULT_TIMEOUT); - - if (rval < 0) - return rval; - - v4l2_dbg(1, debug, &sdev->sd, - "%s: property=0x%02x value=0x%02x status=0x%02x\n", - __func__, prop, val, resp[0]); - - /* - * As there is no command response for SET_PROPERTY, - * wait Tcomp time to finish before proceed, in order - * to have property properly set. - */ - msleep(TIMEOUT_SET_PROPERTY); - - return rval; -} - -/* - * si4713_powerup - Powers the device up - * @sdev: si4713_device structure for the device we are communicating - */ -static int si4713_powerup(struct si4713_device *sdev) -{ - int err; - u8 resp[SI4713_PWUP_NRESP]; - /* - * .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; - - err = regulator_bulk_enable(ARRAY_SIZE(sdev->supplies), - sdev->supplies); - if (err) { - v4l2_err(&sdev->sd, "Failed to enable supplies: %d\n", err); - return err; - } - if (gpio_is_valid(sdev->gpio_reset)) { - udelay(50); - gpio_set_value(sdev->gpio_reset, 1); - } - - err = si4713_send_command(sdev, SI4713_CMD_POWER_UP, - args, ARRAY_SIZE(args), - resp, ARRAY_SIZE(resp), - TIMEOUT_POWER_UP); - - if (!err) { - v4l2_dbg(1, debug, &sdev->sd, "Powerup response: 0x%02x\n", - resp[0]); - v4l2_dbg(1, debug, &sdev->sd, "Device in power up mode\n"); - sdev->power_state = POWER_ON; - - err = si4713_write_property(sdev, SI4713_GPO_IEN, - SI4713_STC_INT | SI4713_CTS); - } else { - if (gpio_is_valid(sdev->gpio_reset)) - gpio_set_value(sdev->gpio_reset, 0); - err = regulator_bulk_disable(ARRAY_SIZE(sdev->supplies), - sdev->supplies); - if (err) - v4l2_err(&sdev->sd, - "Failed to disable supplies: %d\n", err); - } - - return err; -} - -/* - * si4713_powerdown - Powers the device down - * @sdev: si4713_device structure for the device we are communicating - */ -static int si4713_powerdown(struct si4713_device *sdev) -{ - int err; - u8 resp[SI4713_PWDN_NRESP]; - - if (!sdev->power_state) - return 0; - - err = si4713_send_command(sdev, SI4713_CMD_POWER_DOWN, - NULL, 0, - resp, ARRAY_SIZE(resp), - DEFAULT_TIMEOUT); - - if (!err) { - v4l2_dbg(1, debug, &sdev->sd, "Power down response: 0x%02x\n", - resp[0]); - v4l2_dbg(1, debug, &sdev->sd, "Device in reset mode\n"); - if (gpio_is_valid(sdev->gpio_reset)) - gpio_set_value(sdev->gpio_reset, 0); - err = regulator_bulk_disable(ARRAY_SIZE(sdev->supplies), - sdev->supplies); - if (err) - v4l2_err(&sdev->sd, - "Failed to disable supplies: %d\n", err); - sdev->power_state = POWER_OFF; - } - - return err; -} - -/* - * si4713_checkrev - Checks if we are treating a device with the correct rev. - * @sdev: si4713_device structure for the device we are communicating - */ -static int si4713_checkrev(struct si4713_device *sdev) -{ - struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd); - int rval; - u8 resp[SI4713_GETREV_NRESP]; - - 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) { - v4l2_info(&sdev->sd, "chip found @ 0x%02x (%s)\n", - client->addr << 1, client->adapter->name); - } else { - v4l2_err(&sdev->sd, "Invalid product number\n"); - rval = -EINVAL; - } - -unlock: - mutex_unlock(&sdev->mutex); - return rval; -} - -/* - * si4713_wait_stc - Waits STC interrupt and clears status bits. Useful - * for TX_TUNE_POWER, TX_TUNE_FREQ and TX_TUNE_MEAS - * @sdev: si4713_device structure for the device we are communicating - * @usecs: timeout to wait for STC interrupt signal - */ -static int si4713_wait_stc(struct si4713_device *sdev, const int usecs) -{ - int err; - u8 resp[SI4713_GET_STATUS_NRESP]; - - /* Wait response from STC interrupt */ - if (!wait_for_completion_timeout(&sdev->work, - usecs_to_jiffies(usecs) + 1)) - v4l2_warn(&sdev->sd, - "%s: device took too much time to answer (%d usec).\n", - __func__, usecs); - - /* 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; - - v4l2_dbg(1, debug, &sdev->sd, - "%s: status bits: 0x%02x\n", __func__, 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]; - /* - * .First byte = 0 - * .Second byte = frequency's MSB - * .Third byte = frequency's LSB - */ - const u8 args[SI4713_TXFREQ_NARGS] = { - 0x00, - msb(frequency), - lsb(frequency), - }; - - err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_FREQ, - args, ARRAY_SIZE(args), val, - ARRAY_SIZE(val), DEFAULT_TIMEOUT); - - if (err < 0) - return err; - - v4l2_dbg(1, debug, &sdev->sd, - "%s: frequency=0x%02x status=0x%02x\n", __func__, - frequency, val[0]); - - err = si4713_wait_stc(sdev, TIMEOUT_TX_TUNE); - if (err < 0) - return err; - - return compose_u16(args[1], args[2]); -} - -/* - * si4713_tx_tune_power - Sets the RF voltage level between 88 and 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]; - /* - * .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; - - v4l2_dbg(1, debug, &sdev->sd, - "%s: power=0x%02x antcap=0x%02x status=0x%02x\n", - __func__, power, antcap, val[0]); - - return si4713_wait_stc(sdev, TIMEOUT_TX_TUNE_POWER); -} - -/* - * si4713_tx_tune_measure - Enters receive mode and measures the received noise - * level in units of dBuV on the selected frequency. - * The Frequency must be between 76 and 108 MHz in 10 kHz - * units and steps of 50 kHz. The command also sets the - * antenna tuning capacitance. A value of 0 means - * autotuning, and a value of 1 to 191 indicates manual - * override. - * @sdev: si4713_device structure for the device we are communicating - * @frequency: desired frequency (76 - 108 MHz, unit 10 KHz, step 50 kHz) - * @antcap: value of antenna tuning capacitor (0 - 191) - */ -static int si4713_tx_tune_measure(struct si4713_device *sdev, u16 frequency, - u8 antcap) -{ - int err; - u8 val[SI4713_TXMEA_NRESP]; - /* - * .First byte = 0 - * .Second byte = frequency's MSB - * .Third byte = frequency's LSB - * .Fourth byte = antcap - */ - const u8 args[SI4713_TXMEA_NARGS] = { - 0x00, - msb(frequency), - lsb(frequency), - antcap, - }; - - sdev->tune_rnl = DEFAULT_TUNE_RNL; - - if (antcap > SI4713_MAX_ANTCAP) - return -EDOM; - - err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_MEASURE, - args, ARRAY_SIZE(args), val, - ARRAY_SIZE(val), DEFAULT_TIMEOUT); - - if (err < 0) - return err; - - v4l2_dbg(1, debug, &sdev->sd, - "%s: frequency=0x%02x antcap=0x%02x status=0x%02x\n", - __func__, frequency, antcap, val[0]); - - return si4713_wait_stc(sdev, TIMEOUT_TX_TUNE); -} - -/* - * si4713_tx_tune_status- Returns the status of the tx_tune_freq, tx_tune_mea or - * tx_tune_power commands. This command return the current - * frequency, output voltage in dBuV, the antenna tunning - * capacitance value and the received noise level. The - * command also clears the stcint interrupt bit when the - * first bit of its arguments is high. - * @sdev: si4713_device structure for the device we are communicating - * @intack: 0x01 to clear the seek/tune complete interrupt status indicator. - * @frequency: returned frequency - * @power: returned power - * @antcap: returned antenna capacitance - * @noise: returned noise level - */ -static int si4713_tx_tune_status(struct si4713_device *sdev, u8 intack, - u16 *frequency, u8 *power, - u8 *antcap, u8 *noise) -{ - int err; - u8 val[SI4713_TXSTATUS_NRESP]; - /* - * .First byte = intack bit - */ - const u8 args[SI4713_TXSTATUS_NARGS] = { - intack & SI4713_INTACK_MASK, - }; - - err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_STATUS, - args, ARRAY_SIZE(args), val, - ARRAY_SIZE(val), DEFAULT_TIMEOUT); - - if (!err) { - v4l2_dbg(1, debug, &sdev->sd, - "%s: status=0x%02x\n", __func__, val[0]); - *frequency = compose_u16(val[2], val[3]); - sdev->frequency = *frequency; - *power = val[5]; - *antcap = val[6]; - *noise = val[7]; - v4l2_dbg(1, debug, &sdev->sd, "%s: response: %d x 10 kHz " - "(power %d, antcap %d, rnl %d)\n", __func__, - *frequency, *power, *antcap, *noise); - } - - return err; -} - -/* - * si4713_tx_rds_buff - Loads the RDS group buffer FIFO or circular buffer. - * @sdev: si4713_device structure for the device we are communicating - * @mode: the buffer operation mode. - * @rdsb: RDS Block B - * @rdsc: RDS Block C - * @rdsd: RDS Block D - * @cbleft: returns the number of available circular buffer blocks minus the - * number of used circular buffer blocks. - */ -static int si4713_tx_rds_buff(struct si4713_device *sdev, u8 mode, u16 rdsb, - u16 rdsc, u16 rdsd, s8 *cbleft) -{ - int err; - u8 val[SI4713_RDSBUFF_NRESP]; - - const u8 args[SI4713_RDSBUFF_NARGS] = { - mode & SI4713_RDSBUFF_MODE_MASK, - msb(rdsb), - lsb(rdsb), - msb(rdsc), - lsb(rdsc), - msb(rdsd), - lsb(rdsd), - }; - - err = si4713_send_command(sdev, SI4713_CMD_TX_RDS_BUFF, - args, ARRAY_SIZE(args), val, - ARRAY_SIZE(val), DEFAULT_TIMEOUT); - - if (!err) { - v4l2_dbg(1, debug, &sdev->sd, - "%s: status=0x%02x\n", __func__, val[0]); - *cbleft = (s8)val[2] - val[3]; - v4l2_dbg(1, debug, &sdev->sd, "%s: response: interrupts" - " 0x%02x cb avail: %d cb used %d fifo avail" - " %d fifo used %d\n", __func__, val[1], - val[2], val[3], val[4], val[5]); - } - - return err; -} - -/* - * si4713_tx_rds_ps - Loads the program service buffer. - * @sdev: si4713_device structure for the device we are communicating - * @psid: program service id to be loaded. - * @pschar: assumed 4 size char array to be loaded into the program service - */ -static int si4713_tx_rds_ps(struct si4713_device *sdev, u8 psid, - unsigned char *pschar) -{ - int err; - u8 val[SI4713_RDSPS_NRESP]; - - const u8 args[SI4713_RDSPS_NARGS] = { - psid & SI4713_RDSPS_PSID_MASK, - pschar[0], - pschar[1], - pschar[2], - pschar[3], - }; - - err = si4713_send_command(sdev, SI4713_CMD_TX_RDS_PS, - args, ARRAY_SIZE(args), val, - ARRAY_SIZE(val), DEFAULT_TIMEOUT); - - if (err < 0) - return err; - - v4l2_dbg(1, debug, &sdev->sd, "%s: status=0x%02x\n", __func__, val[0]); - - return err; -} - -static int si4713_set_power_state(struct si4713_device *sdev, u8 value) -{ - int rval; - - mutex_lock(&sdev->mutex); - - if (value) - rval = si4713_powerup(sdev); - else - rval = si4713_powerdown(sdev); - - mutex_unlock(&sdev->mutex); - return rval; -} - -static 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; -} - -static int si4713_set_rds_ps_name(struct si4713_device *sdev, char *ps_name) -{ - int rval = 0, i; - u8 len = 0; - - /* We want to clear the whole thing */ - if (!strlen(ps_name)) - memset(ps_name, 0, MAX_RDS_PS_NAME + 1); - - 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)), - ps_name + i); - if (rval < 0) - goto unlock; - } - - /* Setup the size to be sent */ - if (strlen(ps_name)) - len = strlen(ps_name) - 1; - else - len = 1; - - rval = si4713_write_property(sdev, - SI4713_TX_RDS_PS_MESSAGE_COUNT, - rds_ps_nblocks(len)); - if (rval < 0) - 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, ps_name, MAX_RDS_PS_NAME); - -unlock: - mutex_unlock(&sdev->mutex); - return rval; -} - -static int si4713_set_rds_radio_text(struct si4713_device *sdev, char *rt) -{ - int rval = 0, i; - u16 t_index = 0; - u8 b_index = 0, cr_inserted = 0; - s8 left; - - mutex_lock(&sdev->mutex); - - if (!sdev->power_state) - goto copy; - - rval = si4713_tx_rds_buff(sdev, RDS_BLOCK_CLEAR, 0, 0, 0, &left); - if (rval < 0) - goto unlock; - - if (!strlen(rt)) - goto copy; - - do { - /* RDS spec says that if the last block isn't used, - * then apply a carriage return - */ - if (t_index < (RDS_RADIOTEXT_INDEX_MAX * - RDS_RADIOTEXT_BLK_SIZE)) { - for (i = 0; i < RDS_RADIOTEXT_BLK_SIZE; i++) { - if (!rt[t_index + i] || rt[t_index + i] == - RDS_CARRIAGE_RETURN) { - rt[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(rt[t_index], rt[t_index + 1]), - compose_u16(rt[t_index + 2], rt[t_index + 3]), - &left); - if (rval < 0) - goto unlock; - - t_index += RDS_RADIOTEXT_BLK_SIZE; - - if (cr_inserted) - break; - } while (left > 0); - -copy: - strncpy(sdev->rds_info.radio_text, rt, MAX_RDS_RADIO_TEXT); - -unlock: - mutex_unlock(&sdev->mutex); - return rval; -} - -static int si4713_choose_econtrol_action(struct si4713_device *sdev, u32 id, - u32 **shadow, s32 *bit, s32 *mask, u16 *property, int *mul, - unsigned long **table, int *size) -{ - s32 rval = 0; - - switch (id) { - /* FM_TX class controls */ - case V4L2_CID_RDS_TX_PI: - *property = SI4713_TX_RDS_PI; - *mul = 1; - *shadow = &sdev->rds_info.pi; - break; - case V4L2_CID_AUDIO_COMPRESSION_THRESHOLD: - *property = SI4713_TX_ACOMP_THRESHOLD; - *mul = 1; - *shadow = &sdev->acomp_info.threshold; - break; - case V4L2_CID_AUDIO_COMPRESSION_GAIN: - *property = SI4713_TX_ACOMP_GAIN; - *mul = 1; - *shadow = &sdev->acomp_info.gain; - break; - case V4L2_CID_PILOT_TONE_FREQUENCY: - *property = SI4713_TX_PILOT_FREQUENCY; - *mul = 1; - *shadow = &sdev->pilot_info.frequency; - break; - case V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME: - *property = SI4713_TX_ACOMP_ATTACK_TIME; - *mul = ATTACK_TIME_UNIT; - *shadow = &sdev->acomp_info.attack_time; - break; - case V4L2_CID_PILOT_TONE_DEVIATION: - *property = SI4713_TX_PILOT_DEVIATION; - *mul = 10; - *shadow = &sdev->pilot_info.deviation; - break; - case V4L2_CID_AUDIO_LIMITER_DEVIATION: - *property = SI4713_TX_AUDIO_DEVIATION; - *mul = 10; - *shadow = &sdev->limiter_info.deviation; - break; - case V4L2_CID_RDS_TX_DEVIATION: - *property = SI4713_TX_RDS_DEVIATION; - *mul = 1; - *shadow = &sdev->rds_info.deviation; - break; - - case V4L2_CID_RDS_TX_PTY: - *property = SI4713_TX_RDS_PS_MISC; - *bit = 5; - *mask = 0x1F << 5; - *shadow = &sdev->rds_info.pty; - break; - case V4L2_CID_AUDIO_LIMITER_ENABLED: - *property = SI4713_TX_ACOMP_ENABLE; - *bit = 1; - *mask = 1 << 1; - *shadow = &sdev->limiter_info.enabled; - break; - case V4L2_CID_AUDIO_COMPRESSION_ENABLED: - *property = SI4713_TX_ACOMP_ENABLE; - *bit = 0; - *mask = 1 << 0; - *shadow = &sdev->acomp_info.enabled; - break; - case V4L2_CID_PILOT_TONE_ENABLED: - *property = SI4713_TX_COMPONENT_ENABLE; - *bit = 0; - *mask = 1 << 0; - *shadow = &sdev->pilot_info.enabled; - break; - - case V4L2_CID_AUDIO_LIMITER_RELEASE_TIME: - *property = SI4713_TX_LIMITER_RELEASE_TIME; - *table = limiter_times; - *size = ARRAY_SIZE(limiter_times); - *shadow = &sdev->limiter_info.release_time; - break; - case V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME: - *property = SI4713_TX_ACOMP_RELEASE_TIME; - *table = acomp_rtimes; - *size = ARRAY_SIZE(acomp_rtimes); - *shadow = &sdev->acomp_info.release_time; - break; - case V4L2_CID_TUNE_PREEMPHASIS: - *property = SI4713_TX_PREEMPHASIS; - *table = preemphasis_values; - *size = ARRAY_SIZE(preemphasis_values); - *shadow = &sdev->preemphasis; - break; - - default: - rval = -EINVAL; - }; - - return rval; -} - -static int si4713_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc); - -/* write string property */ -static int si4713_write_econtrol_string(struct si4713_device *sdev, - struct v4l2_ext_control *control) -{ - struct v4l2_queryctrl vqc; - int len; - s32 rval = 0; - - vqc.id = control->id; - rval = si4713_queryctrl(&sdev->sd, &vqc); - if (rval < 0) - goto exit; - - switch (control->id) { - case V4L2_CID_RDS_TX_PS_NAME: { - char ps_name[MAX_RDS_PS_NAME + 1]; - - len = control->size - 1; - if (len < 0 || len > MAX_RDS_PS_NAME) { - rval = -ERANGE; - goto exit; - } - rval = copy_from_user(ps_name, control->string, len); - if (rval) { - rval = -EFAULT; - goto exit; - } - ps_name[len] = '\0'; - - if (strlen(ps_name) % vqc.step) { - rval = -ERANGE; - goto exit; - } - - rval = si4713_set_rds_ps_name(sdev, ps_name); - } - break; - - case V4L2_CID_RDS_TX_RADIO_TEXT: { - char radio_text[MAX_RDS_RADIO_TEXT + 1]; - - len = control->size - 1; - if (len < 0 || len > MAX_RDS_RADIO_TEXT) { - rval = -ERANGE; - goto exit; - } - rval = copy_from_user(radio_text, control->string, len); - if (rval) { - rval = -EFAULT; - goto exit; - } - radio_text[len] = '\0'; - - if (strlen(radio_text) % vqc.step) { - rval = -ERANGE; - goto exit; - } - - rval = si4713_set_rds_radio_text(sdev, radio_text); - } - break; - - default: - rval = -EINVAL; - break; - }; - -exit: - return rval; -} - -static int validate_range(struct v4l2_subdev *sd, - struct v4l2_ext_control *control) -{ - struct v4l2_queryctrl vqc; - int rval; - - vqc.id = control->id; - rval = si4713_queryctrl(sd, &vqc); - if (rval < 0) - goto exit; - - if (control->value < vqc.minimum || control->value > vqc.maximum) - rval = -ERANGE; - -exit: - return rval; -} - -/* properties which use tx_tune_power*/ -static int si4713_write_econtrol_tune(struct si4713_device *sdev, - struct v4l2_ext_control *control) -{ - s32 rval = 0; - u8 power, antcap; - - rval = validate_range(&sdev->sd, control); - if (rval < 0) - goto exit; - - mutex_lock(&sdev->mutex); - - switch (control->id) { - case V4L2_CID_TUNE_POWER_LEVEL: - power = control->value; - antcap = sdev->antenna_capacitor; - break; - case V4L2_CID_TUNE_ANTENNA_CAPACITOR: - power = sdev->power_level; - antcap = control->value; - break; - default: - rval = -EINVAL; - goto unlock; - }; - - if (sdev->power_state) - rval = si4713_tx_tune_power(sdev, power, antcap); - - if (rval == 0) { - sdev->power_level = power; - sdev->antenna_capacitor = antcap; - } - -unlock: - mutex_unlock(&sdev->mutex); -exit: - return rval; -} - -static int si4713_write_econtrol_integers(struct si4713_device *sdev, - struct v4l2_ext_control *control) -{ - s32 rval; - u32 *shadow = NULL, val = 0; - s32 bit = 0, mask = 0; - u16 property = 0; - int mul = 0; - unsigned long *table = NULL; - int size = 0; - - rval = validate_range(&sdev->sd, control); - if (rval < 0) - goto exit; - - rval = si4713_choose_econtrol_action(sdev, control->id, &shadow, &bit, - &mask, &property, &mul, &table, &size); - if (rval < 0) - goto exit; - - val = control->value; - if (mul) { - val = control->value / mul; - } else if (table) { - rval = usecs_to_dev(control->value, table, size); - if (rval < 0) - goto exit; - val = rval; - rval = 0; - } - - mutex_lock(&sdev->mutex); - - if (sdev->power_state) { - if (mask) { - rval = si4713_read_property(sdev, property, &val); - if (rval < 0) - goto unlock; - val = set_bits(val, control->value, bit, mask); - } - - rval = si4713_write_property(sdev, property, val); - if (rval < 0) - goto unlock; - if (mask) - val = control->value; - } - - if (mul) { - *shadow = val * mul; - } else if (table) { - rval = dev_to_usecs(val, table, size); - if (rval < 0) - goto unlock; - *shadow = rval; - rval = 0; - } else { - *shadow = val; - } - -unlock: - mutex_unlock(&sdev->mutex); -exit: - return rval; -} - -static int si4713_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f); -static int si4713_s_modulator(struct v4l2_subdev *sd, struct v4l2_modulator *); -/* - * si4713_setup - Sets the device up with current configuration. - * @sdev: si4713_device structure for the device we are communicating - */ -static int si4713_setup(struct si4713_device *sdev) -{ - struct v4l2_ext_control ctrl; - struct v4l2_frequency f; - struct v4l2_modulator vm; - struct si4713_device *tmp; - int rval = 0; - - 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); - - ctrl.id = V4L2_CID_RDS_TX_PI; - ctrl.value = tmp->rds_info.pi; - rval |= si4713_write_econtrol_integers(sdev, &ctrl); - - ctrl.id = V4L2_CID_AUDIO_COMPRESSION_THRESHOLD; - ctrl.value = tmp->acomp_info.threshold; - rval |= si4713_write_econtrol_integers(sdev, &ctrl); - - ctrl.id = V4L2_CID_AUDIO_COMPRESSION_GAIN; - ctrl.value = tmp->acomp_info.gain; - rval |= si4713_write_econtrol_integers(sdev, &ctrl); - - ctrl.id = V4L2_CID_PILOT_TONE_FREQUENCY; - ctrl.value = tmp->pilot_info.frequency; - rval |= si4713_write_econtrol_integers(sdev, &ctrl); - - ctrl.id = V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME; - ctrl.value = tmp->acomp_info.attack_time; - rval |= si4713_write_econtrol_integers(sdev, &ctrl); - - ctrl.id = V4L2_CID_PILOT_TONE_DEVIATION; - ctrl.value = tmp->pilot_info.deviation; - rval |= si4713_write_econtrol_integers(sdev, &ctrl); - - ctrl.id = V4L2_CID_AUDIO_LIMITER_DEVIATION; - ctrl.value = tmp->limiter_info.deviation; - rval |= si4713_write_econtrol_integers(sdev, &ctrl); - - ctrl.id = V4L2_CID_RDS_TX_DEVIATION; - ctrl.value = tmp->rds_info.deviation; - rval |= si4713_write_econtrol_integers(sdev, &ctrl); - - ctrl.id = V4L2_CID_RDS_TX_PTY; - ctrl.value = tmp->rds_info.pty; - rval |= si4713_write_econtrol_integers(sdev, &ctrl); - - ctrl.id = V4L2_CID_AUDIO_LIMITER_ENABLED; - ctrl.value = tmp->limiter_info.enabled; - rval |= si4713_write_econtrol_integers(sdev, &ctrl); - - ctrl.id = V4L2_CID_AUDIO_COMPRESSION_ENABLED; - ctrl.value = tmp->acomp_info.enabled; - rval |= si4713_write_econtrol_integers(sdev, &ctrl); - - ctrl.id = V4L2_CID_PILOT_TONE_ENABLED; - ctrl.value = tmp->pilot_info.enabled; - rval |= si4713_write_econtrol_integers(sdev, &ctrl); - - ctrl.id = V4L2_CID_AUDIO_LIMITER_RELEASE_TIME; - ctrl.value = tmp->limiter_info.release_time; - rval |= si4713_write_econtrol_integers(sdev, &ctrl); - - ctrl.id = V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME; - ctrl.value = tmp->acomp_info.release_time; - rval |= si4713_write_econtrol_integers(sdev, &ctrl); - - ctrl.id = V4L2_CID_TUNE_PREEMPHASIS; - ctrl.value = tmp->preemphasis; - rval |= si4713_write_econtrol_integers(sdev, &ctrl); - - ctrl.id = V4L2_CID_RDS_TX_PS_NAME; - rval |= si4713_set_rds_ps_name(sdev, tmp->rds_info.ps_name); - - ctrl.id = V4L2_CID_RDS_TX_RADIO_TEXT; - rval |= si4713_set_rds_radio_text(sdev, tmp->rds_info.radio_text); - - /* Device procedure needs to set frequency first */ - f.frequency = tmp->frequency ? tmp->frequency : DEFAULT_FREQUENCY; - f.frequency = si4713_to_v4l2(f.frequency); - rval |= si4713_s_frequency(&sdev->sd, &f); - - ctrl.id = V4L2_CID_TUNE_POWER_LEVEL; - ctrl.value = tmp->power_level; - rval |= si4713_write_econtrol_tune(sdev, &ctrl); - - ctrl.id = V4L2_CID_TUNE_ANTENNA_CAPACITOR; - ctrl.value = tmp->antenna_capacitor; - rval |= si4713_write_econtrol_tune(sdev, &ctrl); - - vm.index = 0; - if (tmp->stereo) - vm.txsubchans = V4L2_TUNER_SUB_STEREO; - else - vm.txsubchans = V4L2_TUNER_SUB_MONO; - if (tmp->rds_info.enabled) - vm.txsubchans |= V4L2_TUNER_SUB_RDS; - si4713_s_modulator(&sdev->sd, &vm); - - kfree(tmp); - - return rval; -} - -/* - * si4713_initialize - Sets the device up with default configuration. - * @sdev: si4713_device structure for the device we are communicating - */ -static int si4713_initialize(struct si4713_device *sdev) -{ - int rval; - - rval = si4713_set_power_state(sdev, POWER_ON); - if (rval < 0) - goto exit; - - rval = si4713_checkrev(sdev); - if (rval < 0) - goto exit; - - rval = si4713_set_power_state(sdev, POWER_OFF); - if (rval < 0) - goto exit; - - mutex_lock(&sdev->mutex); - - sdev->rds_info.pi = DEFAULT_RDS_PI; - sdev->rds_info.pty = DEFAULT_RDS_PTY; - sdev->rds_info.deviation = DEFAULT_RDS_DEVIATION; - strlcpy(sdev->rds_info.ps_name, DEFAULT_RDS_PS_NAME, MAX_RDS_PS_NAME); - strlcpy(sdev->rds_info.radio_text, DEFAULT_RDS_RADIO_TEXT, - MAX_RDS_RADIO_TEXT); - sdev->rds_info.enabled = 1; - - sdev->limiter_info.release_time = DEFAULT_LIMITER_RTIME; - sdev->limiter_info.deviation = DEFAULT_LIMITER_DEV; - sdev->limiter_info.enabled = 1; - - sdev->pilot_info.deviation = DEFAULT_PILOT_DEVIATION; - sdev->pilot_info.frequency = DEFAULT_PILOT_FREQUENCY; - sdev->pilot_info.enabled = 1; - - sdev->acomp_info.release_time = DEFAULT_ACOMP_RTIME; - sdev->acomp_info.attack_time = DEFAULT_ACOMP_ATIME; - sdev->acomp_info.threshold = DEFAULT_ACOMP_THRESHOLD; - sdev->acomp_info.gain = DEFAULT_ACOMP_GAIN; - sdev->acomp_info.enabled = 1; - - sdev->frequency = DEFAULT_FREQUENCY; - sdev->preemphasis = DEFAULT_PREEMPHASIS; - sdev->mute = DEFAULT_MUTE; - sdev->power_level = DEFAULT_POWER_LEVEL; - sdev->antenna_capacitor = 0; - sdev->stereo = 1; - sdev->tune_rnl = DEFAULT_TUNE_RNL; - - mutex_unlock(&sdev->mutex); - -exit: - return rval; -} - -/* read string property */ -static int si4713_read_econtrol_string(struct si4713_device *sdev, - struct v4l2_ext_control *control) -{ - s32 rval = 0; - - switch (control->id) { - case V4L2_CID_RDS_TX_PS_NAME: - if (strlen(sdev->rds_info.ps_name) + 1 > control->size) { - control->size = MAX_RDS_PS_NAME + 1; - rval = -ENOSPC; - goto exit; - } - rval = copy_to_user(control->string, sdev->rds_info.ps_name, - strlen(sdev->rds_info.ps_name) + 1); - if (rval) - rval = -EFAULT; - break; - - case V4L2_CID_RDS_TX_RADIO_TEXT: - if (strlen(sdev->rds_info.radio_text) + 1 > control->size) { - control->size = MAX_RDS_RADIO_TEXT + 1; - rval = -ENOSPC; - goto exit; - } - rval = copy_to_user(control->string, sdev->rds_info.radio_text, - strlen(sdev->rds_info.radio_text) + 1); - if (rval) - rval = -EFAULT; - break; - - default: - rval = -EINVAL; - break; - }; - -exit: - return rval; -} - -/* - * si4713_update_tune_status - update properties from tx_tune_status - * command. Must be called with sdev->mutex held. - * @sdev: si4713_device structure for the device we are communicating - */ -static int si4713_update_tune_status(struct si4713_device *sdev) -{ - int rval; - u16 f = 0; - u8 p = 0, a = 0, n = 0; - - rval = si4713_tx_tune_status(sdev, 0x00, &f, &p, &a, &n); - - if (rval < 0) - goto exit; - - sdev->power_level = p; - sdev->antenna_capacitor = a; - sdev->tune_rnl = n; - -exit: - return rval; -} - -/* properties which use tx_tune_status */ -static int si4713_read_econtrol_tune(struct si4713_device *sdev, - struct v4l2_ext_control *control) -{ - s32 rval = 0; - - mutex_lock(&sdev->mutex); - - if (sdev->power_state) { - rval = si4713_update_tune_status(sdev); - if (rval < 0) - goto unlock; - } - - switch (control->id) { - case V4L2_CID_TUNE_POWER_LEVEL: - control->value = sdev->power_level; - break; - case V4L2_CID_TUNE_ANTENNA_CAPACITOR: - control->value = sdev->antenna_capacitor; - break; - default: - rval = -EINVAL; - }; - -unlock: - mutex_unlock(&sdev->mutex); - return rval; -} - -static int si4713_read_econtrol_integers(struct si4713_device *sdev, - struct v4l2_ext_control *control) -{ - s32 rval; - u32 *shadow = NULL, val = 0; - s32 bit = 0, mask = 0; - u16 property = 0; - int mul = 0; - unsigned long *table = NULL; - int size = 0; - - rval = si4713_choose_econtrol_action(sdev, control->id, &shadow, &bit, - &mask, &property, &mul, &table, &size); - if (rval < 0) - goto exit; - - mutex_lock(&sdev->mutex); - - if (sdev->power_state) { - rval = si4713_read_property(sdev, property, &val); - if (rval < 0) - goto unlock; - - /* Keep negative values for threshold */ - if (control->id == V4L2_CID_AUDIO_COMPRESSION_THRESHOLD) - *shadow = (s16)val; - else if (mask) - *shadow = get_status_bit(val, bit, mask); - else if (mul) - *shadow = val * mul; - else - *shadow = dev_to_usecs(val, table, size); - } - - control->value = *shadow; - -unlock: - mutex_unlock(&sdev->mutex); -exit: - 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_FM_TX) - return -EINVAL; - - for (i = 0; i < ctrls->count; i++) { - int err; - - switch ((ctrls->controls + i)->id) { - case V4L2_CID_RDS_TX_PS_NAME: - case V4L2_CID_RDS_TX_RADIO_TEXT: - err = si4713_write_econtrol_string(sdev, - ctrls->controls + i); - break; - case V4L2_CID_TUNE_ANTENNA_CAPACITOR: - case V4L2_CID_TUNE_POWER_LEVEL: - err = si4713_write_econtrol_tune(sdev, - ctrls->controls + i); - break; - default: - err = si4713_write_econtrol_integers(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_FM_TX) - return -EINVAL; - - for (i = 0; i < ctrls->count; i++) { - int err; - - switch ((ctrls->controls + i)->id) { - case V4L2_CID_RDS_TX_PS_NAME: - case V4L2_CID_RDS_TX_RADIO_TEXT: - err = si4713_read_econtrol_string(sdev, - ctrls->controls + i); - break; - case V4L2_CID_TUNE_ANTENNA_CAPACITOR: - case V4L2_CID_TUNE_POWER_LEVEL: - err = si4713_read_econtrol_tune(sdev, - ctrls->controls + i); - break; - default: - err = si4713_read_econtrol_integers(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 */ - case V4L2_CID_AUDIO_MUTE: - rval = v4l2_ctrl_query_fill(qc, 0, 1, 1, DEFAULT_MUTE); - break; - /* FM_TX class controls */ - case V4L2_CID_RDS_TX_PI: - rval = v4l2_ctrl_query_fill(qc, 0, 0xFFFF, 1, DEFAULT_RDS_PI); - break; - case V4L2_CID_RDS_TX_PTY: - rval = v4l2_ctrl_query_fill(qc, 0, 31, 1, DEFAULT_RDS_PTY); - break; - case V4L2_CID_RDS_TX_DEVIATION: - rval = v4l2_ctrl_query_fill(qc, 0, MAX_RDS_DEVIATION, - 10, DEFAULT_RDS_DEVIATION); - break; - case V4L2_CID_RDS_TX_PS_NAME: - /* - * Report step as 8. From RDS spec, psname - * should be 8. But there are receivers which scroll strings - * sized as 8xN. - */ - rval = v4l2_ctrl_query_fill(qc, 0, MAX_RDS_PS_NAME, 8, 0); - break; - case V4L2_CID_RDS_TX_RADIO_TEXT: - /* - * Report step as 32 (2A block). From RDS spec, - * radio text should be 32 for 2A block. But there are receivers - * which scroll strings sized as 32xN. Setting default to 32. - */ - rval = v4l2_ctrl_query_fill(qc, 0, MAX_RDS_RADIO_TEXT, 32, 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_TUNE_PREEMPHASIS: - rval = v4l2_ctrl_query_fill(qc, V4L2_PREEMPHASIS_DISABLED, - V4L2_PREEMPHASIS_75_uS, 1, - V4L2_PREEMPHASIS_50_uS); - break; - case V4L2_CID_TUNE_POWER_LEVEL: - rval = v4l2_ctrl_query_fill(qc, 0, 120, 1, DEFAULT_POWER_LEVEL); - 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; - - mutex_lock(&sdev->mutex); - - if (sdev->power_state) { - rval = si4713_read_property(sdev, SI4713_TX_LINE_INPUT_MUTE, - &sdev->mute); - - if (rval < 0) - goto unlock; - } - - switch (ctrl->id) { - case V4L2_CID_AUDIO_MUTE: - ctrl->value = get_mute(sdev->mute); - break; - } - -unlock: - mutex_unlock(&sdev->mutex); - 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; -} - -/* si4713_ioctl - deal with private ioctls (only rnl for now) */ -long si4713_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) -{ - struct si4713_device *sdev = to_si4713_device(sd); - struct si4713_rnl *rnl = arg; - u16 frequency; - int rval = 0; - - if (!arg) - return -EINVAL; - - mutex_lock(&sdev->mutex); - switch (cmd) { - case SI4713_IOC_MEASURE_RNL: - frequency = v4l2_to_si4713(rnl->frequency); - - if (sdev->power_state) { - /* Set desired measurement frequency */ - rval = si4713_tx_tune_measure(sdev, frequency, 0); - if (rval < 0) - goto unlock; - /* get results from tune status */ - rval = si4713_update_tune_status(sdev); - if (rval < 0) - goto unlock; - } - rnl->rnl = sdev->tune_rnl; - break; - - default: - /* nothing */ - rval = -ENOIOCTLCMD; - } - -unlock: - mutex_unlock(&sdev->mutex); - return rval; -} - -static const struct v4l2_subdev_core_ops si4713_subdev_core_ops = { - .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 = si4713_ioctl, -}; - -/* si4713_g_modulator - get modulator attributes */ -static int si4713_g_modulator(struct v4l2_subdev *sd, struct v4l2_modulator *vm) -{ - struct si4713_device *sdev = to_si4713_device(sd); - int rval = 0; - - if (!sdev) { - rval = -ENODEV; - goto exit; - } - - if (vm->index > 0) { - rval = -EINVAL; - goto exit; - } - - strncpy(vm->name, "FM Modulator", 32); - vm->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LOW | - V4L2_TUNER_CAP_RDS | V4L2_TUNER_CAP_RDS_CONTROLS; - - /* Report current frequency range limits */ - vm->rangelow = si4713_to_v4l2(FREQ_RANGE_LOW); - vm->rangehigh = si4713_to_v4l2(FREQ_RANGE_HIGH); - - mutex_lock(&sdev->mutex); - - if (sdev->power_state) { - u32 comp_en = 0; - - rval = si4713_read_property(sdev, SI4713_TX_COMPONENT_ENABLE, - &comp_en); - if (rval < 0) - goto unlock; - - sdev->stereo = get_status_bit(comp_en, 1, 1 << 1); - sdev->rds_info.enabled = get_status_bit(comp_en, 2, 1 << 2); - } - - /* Report current audio mode: mono or stereo */ - if (sdev->stereo) - vm->txsubchans = V4L2_TUNER_SUB_STEREO; - else - vm->txsubchans = V4L2_TUNER_SUB_MONO; - - /* Report rds feature status */ - if (sdev->rds_info.enabled) - vm->txsubchans |= V4L2_TUNER_SUB_RDS; - else - vm->txsubchans &= ~V4L2_TUNER_SUB_RDS; - -unlock: - mutex_unlock(&sdev->mutex); -exit: - return rval; -} - -/* si4713_s_modulator - set modulator attributes */ -static int si4713_s_modulator(struct v4l2_subdev *sd, struct v4l2_modulator *vm) -{ - struct si4713_device *sdev = to_si4713_device(sd); - int rval = 0; - u16 stereo, rds; - u32 p; - - if (!sdev) - return -ENODEV; - - if (vm->index > 0) - return -EINVAL; - - /* Set audio mode: mono or stereo */ - if (vm->txsubchans & V4L2_TUNER_SUB_STEREO) - stereo = 1; - else if (vm->txsubchans & V4L2_TUNER_SUB_MONO) - stereo = 0; - else - return -EINVAL; - - rds = !!(vm->txsubchans & V4L2_TUNER_SUB_RDS); - - mutex_lock(&sdev->mutex); - - if (sdev->power_state) { - rval = si4713_read_property(sdev, - SI4713_TX_COMPONENT_ENABLE, &p); - if (rval < 0) - goto unlock; - - p = set_bits(p, stereo, 1, 1 << 1); - p = set_bits(p, rds, 2, 1 << 2); - - rval = si4713_write_property(sdev, - SI4713_TX_COMPONENT_ENABLE, p); - if (rval < 0) - goto unlock; - } - - sdev->stereo = stereo; - sdev->rds_info.enabled = rds; - -unlock: - mutex_unlock(&sdev->mutex); - 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; - - f->type = V4L2_TUNER_RADIO; - - mutex_lock(&sdev->mutex); - - if (sdev->power_state) { - u16 freq; - u8 p, a, n; - - rval = si4713_tx_tune_status(sdev, 0x00, &freq, &p, &a, &n); - if (rval < 0) - goto unlock; - - sdev->frequency = freq; - } - - f->frequency = si4713_to_v4l2(sdev->frequency); - -unlock: - mutex_unlock(&sdev->mutex); - 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; - u16 frequency = v4l2_to_si4713(f->frequency); - - /* Check frequency range */ - if (frequency < FREQ_RANGE_LOW || frequency > FREQ_RANGE_HIGH) - return -EDOM; - - mutex_lock(&sdev->mutex); - - if (sdev->power_state) { - rval = si4713_tx_tune_freq(sdev, frequency); - if (rval < 0) - goto unlock; - frequency = rval; - rval = 0; - } - sdev->frequency = frequency; - f->frequency = si4713_to_v4l2(frequency); - -unlock: - mutex_unlock(&sdev->mutex); - return rval; -} - -static const struct v4l2_subdev_tuner_ops si4713_subdev_tuner_ops = { - .g_frequency = si4713_g_frequency, - .s_frequency = si4713_s_frequency, - .g_modulator = si4713_g_modulator, - .s_modulator = si4713_s_modulator, -}; - -static const struct v4l2_subdev_ops si4713_subdev_ops = { - .core = &si4713_subdev_core_ops, - .tuner = &si4713_subdev_tuner_ops, -}; - -/* - * I2C driver interface - */ -/* si4713_probe - probe for the device */ -static int si4713_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - struct si4713_device *sdev; - struct si4713_platform_data *pdata = client->dev.platform_data; - int rval, i; - - sdev = kzalloc(sizeof *sdev, GFP_KERNEL); - if (!sdev) { - dev_err(&client->dev, "Failed to alloc video device.\n"); - rval = -ENOMEM; - goto exit; - } - - sdev->gpio_reset = -1; - if (pdata && gpio_is_valid(pdata->gpio_reset)) { - rval = gpio_request(pdata->gpio_reset, "si4713 reset"); - if (rval) { - dev_err(&client->dev, - "Failed to request gpio: %d\n", rval); - goto free_sdev; - } - sdev->gpio_reset = pdata->gpio_reset; - gpio_direction_output(sdev->gpio_reset, 0); - } - - for (i = 0; i < ARRAY_SIZE(sdev->supplies); i++) - sdev->supplies[i].supply = si4713_supply_names[i]; - - rval = regulator_bulk_get(&client->dev, ARRAY_SIZE(sdev->supplies), - sdev->supplies); - if (rval) { - dev_err(&client->dev, "Cannot get regulators: %d\n", rval); - goto free_gpio; - } - - 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) { - v4l2_err(&sdev->sd, "Could not request IRQ\n"); - goto put_reg; - } - v4l2_dbg(1, debug, &sdev->sd, "IRQ requested.\n"); - } else { - v4l2_warn(&sdev->sd, "IRQ not configured. Using timeouts.\n"); - } - - rval = si4713_initialize(sdev); - if (rval < 0) { - v4l2_err(&sdev->sd, "Failed to probe device information.\n"); - goto free_irq; - } - - return 0; - -free_irq: - if (client->irq) - free_irq(client->irq, sdev); -put_reg: - regulator_bulk_free(ARRAY_SIZE(sdev->supplies), sdev->supplies); -free_gpio: - if (gpio_is_valid(sdev->gpio_reset)) - gpio_free(sdev->gpio_reset); -free_sdev: - kfree(sdev); -exit: - return rval; -} - -/* si4713_remove - remove the device */ -static int si4713_remove(struct i2c_client *client) -{ - struct v4l2_subdev *sd = i2c_get_clientdata(client); - struct si4713_device *sdev = to_si4713_device(sd); - - 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); - regulator_bulk_free(ARRAY_SIZE(sdev->supplies), sdev->supplies); - if (gpio_is_valid(sdev->gpio_reset)) - gpio_free(sdev->gpio_reset); - 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 i2c_driver si4713_i2c_driver = { - .driver = { - .name = "si4713", - }, - .probe = si4713_probe, - .remove = si4713_remove, - .id_table = si4713_id, -}; - -module_i2c_driver(si4713_i2c_driver); |