From: Dinesh Ram Date: Tue, 15 Oct 2013 15:24:37 +0000 (-0300) Subject: [media] si4713: Reorganized drivers/media/radio directory X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=7391232e1215b3583de86af6e942aaa5c5c9fa97;p=openwrt%2Fstaging%2Fblogic.git [media] si4713: Reorganized drivers/media/radio directory Added a new si4713 directory which will contain all si4713 related files. Also updated Makefile and Kconfig Signed-off-by: Dinesh Ram Signed-off-by: Hans Verkuil Tested-by: Eduardo Valentin Acked-by: Eduardo Valentin Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/radio/Kconfig b/drivers/media/radio/Kconfig index 6ecdc39bb366..e92cec6fc480 100644 --- a/drivers/media/radio/Kconfig +++ b/drivers/media/radio/Kconfig @@ -21,6 +21,12 @@ config RADIO_SI470X source "drivers/media/radio/si470x/Kconfig" +config RADIO_SI4713 + tristate "Silicon Labs Si4713 FM Radio with RDS Transmitter support" + depends on VIDEO_V4L2 + +source "drivers/media/radio/si4713/Kconfig" + config RADIO_SI476X tristate "Silicon Laboratories Si476x I2C FM Radio" depends on I2C && VIDEO_V4L2 @@ -113,29 +119,6 @@ config RADIO_SHARK2 To compile this driver as a module, choose M here: the module will be called radio-shark2. -config I2C_SI4713 - tristate "I2C driver for Silicon Labs Si4713 device" - depends on I2C && VIDEO_V4L2 - ---help--- - Say Y here if you want support to Si4713 I2C device. - This device driver supports only i2c bus. - - To compile this driver as a module, choose M here: the - module will be called si4713. - -config RADIO_SI4713 - tristate "Silicon Labs Si4713 FM Radio Transmitter support" - depends on I2C && VIDEO_V4L2 - select I2C_SI4713 - ---help--- - Say Y here if you want support to Si4713 FM Radio Transmitter. - This device can transmit audio through FM. It can transmit - RDS and RBDS signals as well. This module is the v4l2 radio - interface for the i2c driver of this device. - - To compile this driver as a module, choose M here: the - module will be called radio-si4713. - config USB_KEENE tristate "Keene FM Transmitter USB support" depends on USB && VIDEO_V4L2 diff --git a/drivers/media/radio/Makefile b/drivers/media/radio/Makefile index 3b645601800d..eb1a3a034622 100644 --- a/drivers/media/radio/Makefile +++ b/drivers/media/radio/Makefile @@ -17,12 +17,11 @@ obj-$(CONFIG_RADIO_RTRACK) += radio-aimslab.o obj-$(CONFIG_RADIO_ZOLTRIX) += radio-zoltrix.o obj-$(CONFIG_RADIO_GEMTEK) += radio-gemtek.o obj-$(CONFIG_RADIO_TRUST) += radio-trust.o -obj-$(CONFIG_I2C_SI4713) += si4713-i2c.o -obj-$(CONFIG_RADIO_SI4713) += radio-si4713.o obj-$(CONFIG_RADIO_SI476X) += radio-si476x.o obj-$(CONFIG_RADIO_MIROPCM20) += radio-miropcm20.o obj-$(CONFIG_USB_DSBR) += dsbr100.o obj-$(CONFIG_RADIO_SI470X) += si470x/ +obj-$(CONFIG_RADIO_SI4713) += si4713/ obj-$(CONFIG_USB_MR800) += radio-mr800.o obj-$(CONFIG_USB_KEENE) += radio-keene.o obj-$(CONFIG_USB_MA901) += radio-ma901.o diff --git a/drivers/media/radio/radio-si4713.c b/drivers/media/radio/radio-si4713.c deleted file mode 100644 index ba4cfc946868..000000000000 --- a/drivers/media/radio/radio-si4713.c +++ /dev/null @@ -1,246 +0,0 @@ -/* - * drivers/media/radio/radio-si4713.c - * - * Platform Driver for Silicon Labs Si4713 FM Radio Transmitter: - * - * Copyright (c) 2008 Instituto Nokia de Tecnologia - INdT - * Contact: Eduardo Valentin - * - * 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 -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/* module parameters */ -static int radio_nr = -1; /* radio device minor (-1 ==> auto assign) */ -module_param(radio_nr, int, 0); -MODULE_PARM_DESC(radio_nr, - "Minor number for radio device (-1 ==> auto assign)"); - -MODULE_LICENSE("GPL v2"); -MODULE_AUTHOR("Eduardo Valentin "); -MODULE_DESCRIPTION("Platform driver for Si4713 FM Radio Transmitter"); -MODULE_VERSION("0.0.1"); -MODULE_ALIAS("platform:radio-si4713"); - -/* Driver state struct */ -struct radio_si4713_device { - struct v4l2_device v4l2_dev; - struct video_device radio_dev; - struct mutex lock; -}; - -/* radio_si4713_fops - file operations interface */ -static const struct v4l2_file_operations radio_si4713_fops = { - .owner = THIS_MODULE, - .open = v4l2_fh_open, - .release = v4l2_fh_release, - .poll = v4l2_ctrl_poll, - /* Note: locking is done at the subdev level in the i2c driver. */ - .unlocked_ioctl = video_ioctl2, -}; - -/* Video4Linux Interface */ - -/* radio_si4713_querycap - query device capabilities */ -static int radio_si4713_querycap(struct file *file, void *priv, - struct v4l2_capability *capability) -{ - strlcpy(capability->driver, "radio-si4713", sizeof(capability->driver)); - strlcpy(capability->card, "Silicon Labs Si4713 Modulator", - sizeof(capability->card)); - strlcpy(capability->bus_info, "platform:radio-si4713", - sizeof(capability->bus_info)); - capability->device_caps = V4L2_CAP_MODULATOR | V4L2_CAP_RDS_OUTPUT; - capability->capabilities = capability->device_caps | V4L2_CAP_DEVICE_CAPS; - - return 0; -} - -/* - * v4l2 ioctl call backs. - * we are just a wrapper for v4l2_sub_devs. - */ -static inline struct v4l2_device *get_v4l2_dev(struct file *file) -{ - return &((struct radio_si4713_device *)video_drvdata(file))->v4l2_dev; -} - -static int radio_si4713_g_modulator(struct file *file, void *p, - struct v4l2_modulator *vm) -{ - return v4l2_device_call_until_err(get_v4l2_dev(file), 0, tuner, - g_modulator, vm); -} - -static int radio_si4713_s_modulator(struct file *file, void *p, - const struct v4l2_modulator *vm) -{ - return v4l2_device_call_until_err(get_v4l2_dev(file), 0, tuner, - s_modulator, vm); -} - -static int radio_si4713_g_frequency(struct file *file, void *p, - struct v4l2_frequency *vf) -{ - return v4l2_device_call_until_err(get_v4l2_dev(file), 0, tuner, - g_frequency, vf); -} - -static int radio_si4713_s_frequency(struct file *file, void *p, - const struct v4l2_frequency *vf) -{ - return v4l2_device_call_until_err(get_v4l2_dev(file), 0, tuner, - s_frequency, vf); -} - -static long radio_si4713_default(struct file *file, void *p, - bool valid_prio, unsigned int cmd, void *arg) -{ - return v4l2_device_call_until_err(get_v4l2_dev(file), 0, core, - ioctl, cmd, arg); -} - -static struct v4l2_ioctl_ops radio_si4713_ioctl_ops = { - .vidioc_querycap = radio_si4713_querycap, - .vidioc_g_modulator = radio_si4713_g_modulator, - .vidioc_s_modulator = radio_si4713_s_modulator, - .vidioc_g_frequency = radio_si4713_g_frequency, - .vidioc_s_frequency = radio_si4713_s_frequency, - .vidioc_log_status = v4l2_ctrl_log_status, - .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, - .vidioc_unsubscribe_event = v4l2_event_unsubscribe, - .vidioc_default = radio_si4713_default, -}; - -/* radio_si4713_vdev_template - video device interface */ -static struct video_device radio_si4713_vdev_template = { - .fops = &radio_si4713_fops, - .name = "radio-si4713", - .release = video_device_release_empty, - .ioctl_ops = &radio_si4713_ioctl_ops, - .vfl_dir = VFL_DIR_TX, -}; - -/* Platform driver interface */ -/* radio_si4713_pdriver_probe - probe for the device */ -static int radio_si4713_pdriver_probe(struct platform_device *pdev) -{ - struct radio_si4713_platform_data *pdata = pdev->dev.platform_data; - struct radio_si4713_device *rsdev; - struct i2c_adapter *adapter; - struct v4l2_subdev *sd; - int rval = 0; - - if (!pdata) { - dev_err(&pdev->dev, "Cannot proceed without platform data.\n"); - rval = -EINVAL; - goto exit; - } - - rsdev = devm_kzalloc(&pdev->dev, sizeof(*rsdev), GFP_KERNEL); - if (!rsdev) { - dev_err(&pdev->dev, "Failed to alloc video device.\n"); - rval = -ENOMEM; - goto exit; - } - mutex_init(&rsdev->lock); - - rval = v4l2_device_register(&pdev->dev, &rsdev->v4l2_dev); - if (rval) { - dev_err(&pdev->dev, "Failed to register v4l2 device.\n"); - goto exit; - } - - adapter = i2c_get_adapter(pdata->i2c_bus); - if (!adapter) { - dev_err(&pdev->dev, "Cannot get i2c adapter %d\n", - pdata->i2c_bus); - rval = -ENODEV; - goto unregister_v4l2_dev; - } - - sd = v4l2_i2c_new_subdev_board(&rsdev->v4l2_dev, adapter, - pdata->subdev_board_info, NULL); - if (!sd) { - dev_err(&pdev->dev, "Cannot get v4l2 subdevice\n"); - rval = -ENODEV; - goto put_adapter; - } - - rsdev->radio_dev = radio_si4713_vdev_template; - rsdev->radio_dev.v4l2_dev = &rsdev->v4l2_dev; - rsdev->radio_dev.ctrl_handler = sd->ctrl_handler; - set_bit(V4L2_FL_USE_FH_PRIO, &rsdev->radio_dev.flags); - /* Serialize all access to the si4713 */ - rsdev->radio_dev.lock = &rsdev->lock; - video_set_drvdata(&rsdev->radio_dev, rsdev); - if (video_register_device(&rsdev->radio_dev, VFL_TYPE_RADIO, radio_nr)) { - dev_err(&pdev->dev, "Could not register video device.\n"); - rval = -EIO; - goto put_adapter; - } - dev_info(&pdev->dev, "New device successfully probed\n"); - - goto exit; - -put_adapter: - i2c_put_adapter(adapter); -unregister_v4l2_dev: - v4l2_device_unregister(&rsdev->v4l2_dev); -exit: - return rval; -} - -/* radio_si4713_pdriver_remove - remove the device */ -static int radio_si4713_pdriver_remove(struct platform_device *pdev) -{ - struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev); - struct v4l2_subdev *sd = list_entry(v4l2_dev->subdevs.next, - struct v4l2_subdev, list); - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct radio_si4713_device *rsdev; - - rsdev = container_of(v4l2_dev, struct radio_si4713_device, v4l2_dev); - video_unregister_device(&rsdev->radio_dev); - i2c_put_adapter(client->adapter); - v4l2_device_unregister(&rsdev->v4l2_dev); - - return 0; -} - -static struct platform_driver radio_si4713_pdriver = { - .driver = { - .name = "radio-si4713", - .owner = THIS_MODULE, - }, - .probe = radio_si4713_pdriver_probe, - .remove = radio_si4713_pdriver_remove, -}; - -module_platform_driver(radio_si4713_pdriver); diff --git a/drivers/media/radio/si4713-i2c.c b/drivers/media/radio/si4713-i2c.c deleted file mode 100644 index 9ec48ccbcf0b..000000000000 --- a/drivers/media/radio/si4713-i2c.c +++ /dev/null @@ -1,1532 +0,0 @@ -/* - * drivers/media/radio/si4713-i2c.c - * - * Silicon Labs Si4713 FM Radio Transmitter I2C commands. - * - * Copyright (c) 2009 Nokia Corporation - * Contact: Eduardo Valentin - * - * 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 -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#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 "); -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_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)); - -#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; -} - -/* 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]; - - rval = si4713_send_command(sdev, SI4713_CMD_GET_REV, - NULL, 0, - resp, ARRAY_SIZE(resp), - DEFAULT_TIMEOUT); - - if (rval < 0) - return rval; - - 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; - } - 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) -{ - if (value) - return si4713_powerup(sdev); - return si4713_powerdown(sdev); -} - -static int si4713_set_mute(struct si4713_device *sdev, u16 mute) -{ - int rval = 0; - - mute = set_mute(mute); - - if (sdev->power_state) - rval = si4713_write_property(sdev, - SI4713_TX_LINE_INPUT_MUTE, mute); - - 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); - - 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) - return rval; - } - - /* 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) - return rval; - - rval = si4713_write_property(sdev, - SI4713_TX_RDS_PS_REPEAT_COUNT, - DEFAULT_RDS_PS_REPEAT_COUNT * 2); - if (rval < 0) - return rval; - } - - 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; - - if (!sdev->power_state) - return rval; - - rval = si4713_tx_rds_buff(sdev, RDS_BLOCK_CLEAR, 0, 0, 0, &left); - if (rval < 0) - return rval; - - if (!strlen(rt)) - return rval; - - 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) - return rval; - - t_index += RDS_RADIOTEXT_BLK_SIZE; - - if (cr_inserted) - break; - } while (left > 0); - - 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; - -/* TODO: check that power_level and antenna_capacitor really are not - changed by the hardware. If they are, then these controls should become - volatiles. - sdev->power_level = p; - sdev->antenna_capacitor = a;*/ - sdev->tune_rnl = n; - -exit: - return rval; -} - -static int si4713_choose_econtrol_action(struct si4713_device *sdev, u32 id, - 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; - break; - case V4L2_CID_AUDIO_COMPRESSION_THRESHOLD: - *property = SI4713_TX_ACOMP_THRESHOLD; - *mul = 1; - break; - case V4L2_CID_AUDIO_COMPRESSION_GAIN: - *property = SI4713_TX_ACOMP_GAIN; - *mul = 1; - break; - case V4L2_CID_PILOT_TONE_FREQUENCY: - *property = SI4713_TX_PILOT_FREQUENCY; - *mul = 1; - break; - case V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME: - *property = SI4713_TX_ACOMP_ATTACK_TIME; - *mul = ATTACK_TIME_UNIT; - break; - case V4L2_CID_PILOT_TONE_DEVIATION: - *property = SI4713_TX_PILOT_DEVIATION; - *mul = 10; - break; - case V4L2_CID_AUDIO_LIMITER_DEVIATION: - *property = SI4713_TX_AUDIO_DEVIATION; - *mul = 10; - break; - case V4L2_CID_RDS_TX_DEVIATION: - *property = SI4713_TX_RDS_DEVIATION; - *mul = 1; - break; - - case V4L2_CID_RDS_TX_PTY: - *property = SI4713_TX_RDS_PS_MISC; - *bit = 5; - *mask = 0x1F << 5; - break; - case V4L2_CID_AUDIO_LIMITER_ENABLED: - *property = SI4713_TX_ACOMP_ENABLE; - *bit = 1; - *mask = 1 << 1; - break; - case V4L2_CID_AUDIO_COMPRESSION_ENABLED: - *property = SI4713_TX_ACOMP_ENABLE; - *bit = 0; - *mask = 1 << 0; - break; - case V4L2_CID_PILOT_TONE_ENABLED: - *property = SI4713_TX_COMPONENT_ENABLE; - *bit = 0; - *mask = 1 << 0; - break; - - case V4L2_CID_AUDIO_LIMITER_RELEASE_TIME: - *property = SI4713_TX_LIMITER_RELEASE_TIME; - *table = limiter_times; - *size = ARRAY_SIZE(limiter_times); - break; - case V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME: - *property = SI4713_TX_ACOMP_RELEASE_TIME; - *table = acomp_rtimes; - *size = ARRAY_SIZE(acomp_rtimes); - break; - case V4L2_CID_TUNE_PREEMPHASIS: - *property = SI4713_TX_PREEMPHASIS; - *table = preemphasis_values; - *size = ARRAY_SIZE(preemphasis_values); - break; - - default: - rval = -EINVAL; - break; - } - - return rval; -} - -static int si4713_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *f); -static int si4713_s_modulator(struct v4l2_subdev *sd, const 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_frequency f; - struct v4l2_modulator vm; - int rval; - - /* Device procedure needs to set frequency first */ - f.tuner = 0; - f.frequency = sdev->frequency ? sdev->frequency : DEFAULT_FREQUENCY; - f.frequency = si4713_to_v4l2(f.frequency); - rval = si4713_s_frequency(&sdev->sd, &f); - - vm.index = 0; - if (sdev->stereo) - vm.txsubchans = V4L2_TUNER_SUB_STEREO; - else - vm.txsubchans = V4L2_TUNER_SUB_MONO; - if (sdev->rds_enabled) - vm.txsubchans |= V4L2_TUNER_SUB_RDS; - si4713_s_modulator(&sdev->sd, &vm); - - 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) - return rval; - - rval = si4713_checkrev(sdev); - if (rval < 0) - return rval; - - rval = si4713_set_power_state(sdev, POWER_OFF); - if (rval < 0) - return rval; - - - sdev->frequency = DEFAULT_FREQUENCY; - sdev->stereo = 1; - sdev->tune_rnl = DEFAULT_TUNE_RNL; - return 0; -} - -/* si4713_s_ctrl - set the value of a control */ -static int si4713_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct si4713_device *sdev = - container_of(ctrl->handler, struct si4713_device, ctrl_handler); - u32 val = 0; - s32 bit = 0, mask = 0; - u16 property = 0; - int mul = 0; - unsigned long *table = NULL; - int size = 0; - bool force = false; - int c; - int ret = 0; - - if (ctrl->id != V4L2_CID_AUDIO_MUTE) - return -EINVAL; - if (ctrl->is_new) { - if (ctrl->val) { - ret = si4713_set_mute(sdev, ctrl->val); - if (!ret) - ret = si4713_set_power_state(sdev, POWER_DOWN); - return ret; - } - ret = si4713_set_power_state(sdev, POWER_UP); - if (!ret) - ret = si4713_set_mute(sdev, ctrl->val); - if (!ret) - ret = si4713_setup(sdev); - if (ret) - return ret; - force = true; - } - - if (!sdev->power_state) - return 0; - - for (c = 1; !ret && c < ctrl->ncontrols; c++) { - ctrl = ctrl->cluster[c]; - - if (!force && !ctrl->is_new) - continue; - - switch (ctrl->id) { - case V4L2_CID_RDS_TX_PS_NAME: - ret = si4713_set_rds_ps_name(sdev, ctrl->string); - break; - - case V4L2_CID_RDS_TX_RADIO_TEXT: - ret = si4713_set_rds_radio_text(sdev, ctrl->string); - break; - - case V4L2_CID_TUNE_ANTENNA_CAPACITOR: - /* don't handle this control if we force setting all - * controls since in that case it will be handled by - * V4L2_CID_TUNE_POWER_LEVEL. */ - if (force) - break; - /* fall through */ - case V4L2_CID_TUNE_POWER_LEVEL: - ret = si4713_tx_tune_power(sdev, - sdev->tune_pwr_level->val, sdev->tune_ant_cap->val); - if (!ret) { - /* Make sure we don't set this twice */ - sdev->tune_ant_cap->is_new = false; - sdev->tune_pwr_level->is_new = false; - } - break; - - default: - ret = si4713_choose_econtrol_action(sdev, ctrl->id, &bit, - &mask, &property, &mul, &table, &size); - if (ret < 0) - break; - - val = ctrl->val; - if (mul) { - val = val / mul; - } else if (table) { - ret = usecs_to_dev(val, table, size); - if (ret < 0) - break; - val = ret; - ret = 0; - } - - if (mask) { - ret = si4713_read_property(sdev, property, &val); - if (ret < 0) - break; - val = set_bits(val, ctrl->val, bit, mask); - } - - ret = si4713_write_property(sdev, property, val); - if (ret < 0) - break; - if (mask) - val = ctrl->val; - break; - } - } - - return ret; -} - -/* si4713_ioctl - deal with private ioctls (only rnl for now) */ -static 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; - - 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) - return rval; - /* get results from tune status */ - rval = si4713_update_tune_status(sdev); - if (rval < 0) - return rval; - } - rnl->rnl = sdev->tune_rnl; - break; - - default: - /* nothing */ - rval = -ENOIOCTLCMD; - } - - return rval; -} - -/* 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) - return -ENODEV; - - if (vm->index > 0) - return -EINVAL; - - 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); - - if (sdev->power_state) { - u32 comp_en = 0; - - rval = si4713_read_property(sdev, SI4713_TX_COMPONENT_ENABLE, - &comp_en); - if (rval < 0) - return rval; - - sdev->stereo = get_status_bit(comp_en, 1, 1 << 1); - } - - /* 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_enabled) - vm->txsubchans |= V4L2_TUNER_SUB_RDS; - else - vm->txsubchans &= ~V4L2_TUNER_SUB_RDS; - - return rval; -} - -/* si4713_s_modulator - set modulator attributes */ -static int si4713_s_modulator(struct v4l2_subdev *sd, const 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); - - if (sdev->power_state) { - rval = si4713_read_property(sdev, - SI4713_TX_COMPONENT_ENABLE, &p); - if (rval < 0) - return rval; - - 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) - return rval; - } - - sdev->stereo = stereo; - sdev->rds_enabled = rds; - - 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; - - if (f->tuner) - return -EINVAL; - - if (sdev->power_state) { - u16 freq; - u8 p, a, n; - - rval = si4713_tx_tune_status(sdev, 0x00, &freq, &p, &a, &n); - if (rval < 0) - return rval; - - sdev->frequency = freq; - } - - f->frequency = si4713_to_v4l2(sdev->frequency); - - return rval; -} - -/* si4713_s_frequency - set tuner or modulator radio frequency */ -static int si4713_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *f) -{ - struct si4713_device *sdev = to_si4713_device(sd); - int rval = 0; - u16 frequency = v4l2_to_si4713(f->frequency); - - if (f->tuner) - return -EINVAL; - - /* Check frequency range */ - frequency = clamp_t(u16, frequency, FREQ_RANGE_LOW, FREQ_RANGE_HIGH); - - if (sdev->power_state) { - rval = si4713_tx_tune_freq(sdev, frequency); - if (rval < 0) - return rval; - frequency = rval; - rval = 0; - } - sdev->frequency = frequency; - - return rval; -} - -static const struct v4l2_ctrl_ops si4713_ctrl_ops = { - .s_ctrl = si4713_s_ctrl, -}; - -static const struct v4l2_subdev_core_ops si4713_subdev_core_ops = { - .ioctl = si4713_ioctl, -}; - -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; - struct v4l2_ctrl_handler *hdl; - 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); - - init_completion(&sdev->work); - - hdl = &sdev->ctrl_handler; - v4l2_ctrl_handler_init(hdl, 20); - sdev->mute = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, - V4L2_CID_AUDIO_MUTE, 0, 1, 1, DEFAULT_MUTE); - - sdev->rds_pi = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, - V4L2_CID_RDS_TX_PI, 0, 0xffff, 1, DEFAULT_RDS_PI); - sdev->rds_pty = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, - V4L2_CID_RDS_TX_PTY, 0, 31, 1, DEFAULT_RDS_PTY); - sdev->rds_deviation = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, - V4L2_CID_RDS_TX_DEVIATION, 0, MAX_RDS_DEVIATION, - 10, DEFAULT_RDS_DEVIATION); - /* - * Report step as 8. From RDS spec, psname - * should be 8. But there are receivers which scroll strings - * sized as 8xN. - */ - sdev->rds_ps_name = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, - V4L2_CID_RDS_TX_PS_NAME, 0, MAX_RDS_PS_NAME, 8, 0); - /* - * 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. - */ - sdev->rds_radio_text = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, - V4L2_CID_RDS_TX_RADIO_TEXT, 0, MAX_RDS_RADIO_TEXT, 32, 0); - - sdev->limiter_enabled = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, - V4L2_CID_AUDIO_LIMITER_ENABLED, 0, 1, 1, 1); - sdev->limiter_release_time = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, - V4L2_CID_AUDIO_LIMITER_RELEASE_TIME, 250, - MAX_LIMITER_RELEASE_TIME, 10, DEFAULT_LIMITER_RTIME); - sdev->limiter_deviation = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, - V4L2_CID_AUDIO_LIMITER_DEVIATION, 0, - MAX_LIMITER_DEVIATION, 10, DEFAULT_LIMITER_DEV); - - sdev->compression_enabled = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, - V4L2_CID_AUDIO_COMPRESSION_ENABLED, 0, 1, 1, 1); - sdev->compression_gain = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, - V4L2_CID_AUDIO_COMPRESSION_GAIN, 0, MAX_ACOMP_GAIN, 1, - DEFAULT_ACOMP_GAIN); - sdev->compression_threshold = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, - V4L2_CID_AUDIO_COMPRESSION_THRESHOLD, MIN_ACOMP_THRESHOLD, - MAX_ACOMP_THRESHOLD, 1, - DEFAULT_ACOMP_THRESHOLD); - sdev->compression_attack_time = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, - V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME, 0, - MAX_ACOMP_ATTACK_TIME, 500, DEFAULT_ACOMP_ATIME); - sdev->compression_release_time = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, - V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME, 100000, - MAX_ACOMP_RELEASE_TIME, 100000, DEFAULT_ACOMP_RTIME); - - sdev->pilot_tone_enabled = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, - V4L2_CID_PILOT_TONE_ENABLED, 0, 1, 1, 1); - sdev->pilot_tone_deviation = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, - V4L2_CID_PILOT_TONE_DEVIATION, 0, MAX_PILOT_DEVIATION, - 10, DEFAULT_PILOT_DEVIATION); - sdev->pilot_tone_freq = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, - V4L2_CID_PILOT_TONE_FREQUENCY, 0, MAX_PILOT_FREQUENCY, - 1, DEFAULT_PILOT_FREQUENCY); - - sdev->tune_preemphasis = v4l2_ctrl_new_std_menu(hdl, &si4713_ctrl_ops, - V4L2_CID_TUNE_PREEMPHASIS, - V4L2_PREEMPHASIS_75_uS, 0, V4L2_PREEMPHASIS_50_uS); - sdev->tune_pwr_level = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, - V4L2_CID_TUNE_POWER_LEVEL, 0, 120, 1, DEFAULT_POWER_LEVEL); - sdev->tune_ant_cap = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, - V4L2_CID_TUNE_ANTENNA_CAPACITOR, 0, 191, 1, 0); - - if (hdl->error) { - rval = hdl->error; - goto free_ctrls; - } - v4l2_ctrl_cluster(20, &sdev->mute); - sdev->sd.ctrl_handler = hdl; - - if (client->irq) { - rval = request_irq(client->irq, - si4713_handler, IRQF_TRIGGER_FALLING, - 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); -free_ctrls: - v4l2_ctrl_handler_free(hdl); -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); - v4l2_ctrl_handler_free(sd->ctrl_handler); - 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); diff --git a/drivers/media/radio/si4713-i2c.h b/drivers/media/radio/si4713-i2c.h deleted file mode 100644 index 25cdea26343b..000000000000 --- a/drivers/media/radio/si4713-i2c.h +++ /dev/null @@ -1,238 +0,0 @@ -/* - * drivers/media/radio/si4713-i2c.h - * - * Property and commands definitions for Si4713 radio transmitter chip. - * - * Copyright (c) 2008 Instituto Nokia de Tecnologia - INdT - * Contact: Eduardo Valentin - * - * This file is licensed under the terms of the GNU General Public License - * version 2. This program is licensed "as is" without any warranty of any - * kind, whether express or implied. - * - */ - -#ifndef SI4713_I2C_H -#define SI4713_I2C_H - -#include -#include -#include - -#define SI4713_PRODUCT_NUMBER 0x0D - -/* Command Timeouts */ -#define DEFAULT_TIMEOUT 500 -#define TIMEOUT_SET_PROPERTY 20 -#define TIMEOUT_TX_TUNE_POWER 30000 -#define TIMEOUT_TX_TUNE 110000 -#define TIMEOUT_POWER_UP 200000 - -/* - * Command and its arguments definitions - */ -#define SI4713_PWUP_CTSIEN (1<<7) -#define SI4713_PWUP_GPO2OEN (1<<6) -#define SI4713_PWUP_PATCH (1<<5) -#define SI4713_PWUP_XOSCEN (1<<4) -#define SI4713_PWUP_FUNC_TX 0x02 -#define SI4713_PWUP_FUNC_PATCH 0x0F -#define SI4713_PWUP_OPMOD_ANALOG 0x50 -#define SI4713_PWUP_OPMOD_DIGITAL 0x0F -#define SI4713_PWUP_NARGS 2 -#define SI4713_PWUP_NRESP 1 -#define SI4713_CMD_POWER_UP 0x01 - -#define SI4713_GETREV_NRESP 9 -#define SI4713_CMD_GET_REV 0x10 - -#define SI4713_PWDN_NRESP 1 -#define SI4713_CMD_POWER_DOWN 0x11 - -#define SI4713_SET_PROP_NARGS 5 -#define SI4713_SET_PROP_NRESP 1 -#define SI4713_CMD_SET_PROPERTY 0x12 - -#define SI4713_GET_PROP_NARGS 3 -#define SI4713_GET_PROP_NRESP 4 -#define SI4713_CMD_GET_PROPERTY 0x13 - -#define SI4713_GET_STATUS_NRESP 1 -#define SI4713_CMD_GET_INT_STATUS 0x14 - -#define SI4713_CMD_PATCH_ARGS 0x15 -#define SI4713_CMD_PATCH_DATA 0x16 - -#define SI4713_MAX_FREQ 10800 -#define SI4713_MIN_FREQ 7600 -#define SI4713_TXFREQ_NARGS 3 -#define SI4713_TXFREQ_NRESP 1 -#define SI4713_CMD_TX_TUNE_FREQ 0x30 - -#define SI4713_MAX_POWER 120 -#define SI4713_MIN_POWER 88 -#define SI4713_MAX_ANTCAP 191 -#define SI4713_MIN_ANTCAP 0 -#define SI4713_TXPWR_NARGS 4 -#define SI4713_TXPWR_NRESP 1 -#define SI4713_CMD_TX_TUNE_POWER 0x31 - -#define SI4713_TXMEA_NARGS 4 -#define SI4713_TXMEA_NRESP 1 -#define SI4713_CMD_TX_TUNE_MEASURE 0x32 - -#define SI4713_INTACK_MASK 0x01 -#define SI4713_TXSTATUS_NARGS 1 -#define SI4713_TXSTATUS_NRESP 8 -#define SI4713_CMD_TX_TUNE_STATUS 0x33 - -#define SI4713_OVERMOD_BIT (1 << 2) -#define SI4713_IALH_BIT (1 << 1) -#define SI4713_IALL_BIT (1 << 0) -#define SI4713_ASQSTATUS_NARGS 1 -#define SI4713_ASQSTATUS_NRESP 5 -#define SI4713_CMD_TX_ASQ_STATUS 0x34 - -#define SI4713_RDSBUFF_MODE_MASK 0x87 -#define SI4713_RDSBUFF_NARGS 7 -#define SI4713_RDSBUFF_NRESP 6 -#define SI4713_CMD_TX_RDS_BUFF 0x35 - -#define SI4713_RDSPS_PSID_MASK 0x1F -#define SI4713_RDSPS_NARGS 5 -#define SI4713_RDSPS_NRESP 1 -#define SI4713_CMD_TX_RDS_PS 0x36 - -#define SI4713_CMD_GPO_CTL 0x80 -#define SI4713_CMD_GPO_SET 0x81 - -/* - * Bits from status response - */ -#define SI4713_CTS (1<<7) -#define SI4713_ERR (1<<6) -#define SI4713_RDS_INT (1<<2) -#define SI4713_ASQ_INT (1<<1) -#define SI4713_STC_INT (1<<0) - -/* - * Property definitions - */ -#define SI4713_GPO_IEN 0x0001 -#define SI4713_DIG_INPUT_FORMAT 0x0101 -#define SI4713_DIG_INPUT_SAMPLE_RATE 0x0103 -#define SI4713_REFCLK_FREQ 0x0201 -#define SI4713_REFCLK_PRESCALE 0x0202 -#define SI4713_TX_COMPONENT_ENABLE 0x2100 -#define SI4713_TX_AUDIO_DEVIATION 0x2101 -#define SI4713_TX_PILOT_DEVIATION 0x2102 -#define SI4713_TX_RDS_DEVIATION 0x2103 -#define SI4713_TX_LINE_INPUT_LEVEL 0x2104 -#define SI4713_TX_LINE_INPUT_MUTE 0x2105 -#define SI4713_TX_PREEMPHASIS 0x2106 -#define SI4713_TX_PILOT_FREQUENCY 0x2107 -#define SI4713_TX_ACOMP_ENABLE 0x2200 -#define SI4713_TX_ACOMP_THRESHOLD 0x2201 -#define SI4713_TX_ACOMP_ATTACK_TIME 0x2202 -#define SI4713_TX_ACOMP_RELEASE_TIME 0x2203 -#define SI4713_TX_ACOMP_GAIN 0x2204 -#define SI4713_TX_LIMITER_RELEASE_TIME 0x2205 -#define SI4713_TX_ASQ_INTERRUPT_SOURCE 0x2300 -#define SI4713_TX_ASQ_LEVEL_LOW 0x2301 -#define SI4713_TX_ASQ_DURATION_LOW 0x2302 -#define SI4713_TX_ASQ_LEVEL_HIGH 0x2303 -#define SI4713_TX_ASQ_DURATION_HIGH 0x2304 -#define SI4713_TX_RDS_INTERRUPT_SOURCE 0x2C00 -#define SI4713_TX_RDS_PI 0x2C01 -#define SI4713_TX_RDS_PS_MIX 0x2C02 -#define SI4713_TX_RDS_PS_MISC 0x2C03 -#define SI4713_TX_RDS_PS_REPEAT_COUNT 0x2C04 -#define SI4713_TX_RDS_PS_MESSAGE_COUNT 0x2C05 -#define SI4713_TX_RDS_PS_AF 0x2C06 -#define SI4713_TX_RDS_FIFO_SIZE 0x2C07 - -#define PREEMPHASIS_USA 75 -#define PREEMPHASIS_EU 50 -#define PREEMPHASIS_DISABLED 0 -#define FMPE_USA 0x00 -#define FMPE_EU 0x01 -#define FMPE_DISABLED 0x02 - -#define POWER_UP 0x01 -#define POWER_DOWN 0x00 - -#define MAX_RDS_PTY 31 -#define MAX_RDS_DEVIATION 90000 - -/* - * PSNAME is known to be defined as 8 character sized (RDS Spec). - * However, there is receivers which scroll PSNAME 8xN sized. - */ -#define MAX_RDS_PS_NAME 96 - -/* - * MAX_RDS_RADIO_TEXT is known to be defined as 32 (2A group) or 64 (2B group) - * character sized (RDS Spec). - * However, there is receivers which scroll them as well. - */ -#define MAX_RDS_RADIO_TEXT 384 - -#define MAX_LIMITER_RELEASE_TIME 102390 -#define MAX_LIMITER_DEVIATION 90000 - -#define MAX_PILOT_DEVIATION 90000 -#define MAX_PILOT_FREQUENCY 19000 - -#define MAX_ACOMP_RELEASE_TIME 1000000 -#define MAX_ACOMP_ATTACK_TIME 5000 -#define MAX_ACOMP_THRESHOLD 0 -#define MIN_ACOMP_THRESHOLD (-40) -#define MAX_ACOMP_GAIN 20 - -#define SI4713_NUM_SUPPLIES 2 - -/* - * si4713_device - private data - */ -struct si4713_device { - /* v4l2_subdev and i2c reference (v4l2_subdev priv data) */ - struct v4l2_subdev sd; - struct v4l2_ctrl_handler ctrl_handler; - /* private data structures */ - struct { /* si4713 control cluster */ - /* This is one big cluster since the mute control - * powers off the device and after unmuting again all - * controls need to be set at once. The only way of doing - * that is by making it one big cluster. */ - struct v4l2_ctrl *mute; - struct v4l2_ctrl *rds_ps_name; - struct v4l2_ctrl *rds_radio_text; - struct v4l2_ctrl *rds_pi; - struct v4l2_ctrl *rds_deviation; - struct v4l2_ctrl *rds_pty; - struct v4l2_ctrl *compression_enabled; - struct v4l2_ctrl *compression_threshold; - struct v4l2_ctrl *compression_gain; - struct v4l2_ctrl *compression_attack_time; - struct v4l2_ctrl *compression_release_time; - struct v4l2_ctrl *pilot_tone_enabled; - struct v4l2_ctrl *pilot_tone_freq; - struct v4l2_ctrl *pilot_tone_deviation; - struct v4l2_ctrl *limiter_enabled; - struct v4l2_ctrl *limiter_deviation; - struct v4l2_ctrl *limiter_release_time; - struct v4l2_ctrl *tune_preemphasis; - struct v4l2_ctrl *tune_pwr_level; - struct v4l2_ctrl *tune_ant_cap; - }; - struct completion work; - struct regulator_bulk_data supplies[SI4713_NUM_SUPPLIES]; - int gpio_reset; - u32 power_state; - u32 rds_enabled; - u32 frequency; - u32 preemphasis; - u32 stereo; - u32 tune_rnl; -}; -#endif /* ifndef SI4713_I2C_H */ diff --git a/drivers/media/radio/si4713/Kconfig b/drivers/media/radio/si4713/Kconfig new file mode 100644 index 000000000000..ec640b86994b --- /dev/null +++ b/drivers/media/radio/si4713/Kconfig @@ -0,0 +1,25 @@ +config PLATFORM_SI4713 + tristate "Silicon Labs Si4713 FM Radio Transmitter support with I2C" + depends on I2C && RADIO_SI4713 + select SI4713 + ---help--- + This is a driver for I2C devices with the Silicon Labs SI4713 + chip. + + Say Y here if you want to connect this type of radio to your + computer's I2C port. + + To compile this driver as a module, choose M here: the + module will be called radio-platform-si4713. + +config I2C_SI4713 + tristate "Silicon Labs Si4713 FM Radio Transmitter support" + depends on I2C && RADIO_SI4713 + ---help--- + Say Y here if you want support to Si4713 FM Radio Transmitter. + This device can transmit audio through FM. It can transmit + RDS and RBDS signals as well. This module is the v4l2 radio + interface for the i2c driver of this device. + + To compile this driver as a module, choose M here: the + module will be called si4713. diff --git a/drivers/media/radio/si4713/Makefile b/drivers/media/radio/si4713/Makefile new file mode 100644 index 000000000000..a8c1194dac73 --- /dev/null +++ b/drivers/media/radio/si4713/Makefile @@ -0,0 +1,6 @@ +# +# Makefile for radios with Silicon Labs Si4713 FM Radio Transmitters +# + +obj-$(CONFIG_I2C_SI4713) += si4713.o +obj-$(CONFIG_PLATFORM_SI4713) += radio-platform-si4713.o diff --git a/drivers/media/radio/si4713/radio-platform-si4713.c b/drivers/media/radio/si4713/radio-platform-si4713.c new file mode 100644 index 000000000000..ba4cfc946868 --- /dev/null +++ b/drivers/media/radio/si4713/radio-platform-si4713.c @@ -0,0 +1,246 @@ +/* + * drivers/media/radio/radio-si4713.c + * + * Platform Driver for Silicon Labs Si4713 FM Radio Transmitter: + * + * Copyright (c) 2008 Instituto Nokia de Tecnologia - INdT + * Contact: Eduardo Valentin + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* module parameters */ +static int radio_nr = -1; /* radio device minor (-1 ==> auto assign) */ +module_param(radio_nr, int, 0); +MODULE_PARM_DESC(radio_nr, + "Minor number for radio device (-1 ==> auto assign)"); + +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Eduardo Valentin "); +MODULE_DESCRIPTION("Platform driver for Si4713 FM Radio Transmitter"); +MODULE_VERSION("0.0.1"); +MODULE_ALIAS("platform:radio-si4713"); + +/* Driver state struct */ +struct radio_si4713_device { + struct v4l2_device v4l2_dev; + struct video_device radio_dev; + struct mutex lock; +}; + +/* radio_si4713_fops - file operations interface */ +static const struct v4l2_file_operations radio_si4713_fops = { + .owner = THIS_MODULE, + .open = v4l2_fh_open, + .release = v4l2_fh_release, + .poll = v4l2_ctrl_poll, + /* Note: locking is done at the subdev level in the i2c driver. */ + .unlocked_ioctl = video_ioctl2, +}; + +/* Video4Linux Interface */ + +/* radio_si4713_querycap - query device capabilities */ +static int radio_si4713_querycap(struct file *file, void *priv, + struct v4l2_capability *capability) +{ + strlcpy(capability->driver, "radio-si4713", sizeof(capability->driver)); + strlcpy(capability->card, "Silicon Labs Si4713 Modulator", + sizeof(capability->card)); + strlcpy(capability->bus_info, "platform:radio-si4713", + sizeof(capability->bus_info)); + capability->device_caps = V4L2_CAP_MODULATOR | V4L2_CAP_RDS_OUTPUT; + capability->capabilities = capability->device_caps | V4L2_CAP_DEVICE_CAPS; + + return 0; +} + +/* + * v4l2 ioctl call backs. + * we are just a wrapper for v4l2_sub_devs. + */ +static inline struct v4l2_device *get_v4l2_dev(struct file *file) +{ + return &((struct radio_si4713_device *)video_drvdata(file))->v4l2_dev; +} + +static int radio_si4713_g_modulator(struct file *file, void *p, + struct v4l2_modulator *vm) +{ + return v4l2_device_call_until_err(get_v4l2_dev(file), 0, tuner, + g_modulator, vm); +} + +static int radio_si4713_s_modulator(struct file *file, void *p, + const struct v4l2_modulator *vm) +{ + return v4l2_device_call_until_err(get_v4l2_dev(file), 0, tuner, + s_modulator, vm); +} + +static int radio_si4713_g_frequency(struct file *file, void *p, + struct v4l2_frequency *vf) +{ + return v4l2_device_call_until_err(get_v4l2_dev(file), 0, tuner, + g_frequency, vf); +} + +static int radio_si4713_s_frequency(struct file *file, void *p, + const struct v4l2_frequency *vf) +{ + return v4l2_device_call_until_err(get_v4l2_dev(file), 0, tuner, + s_frequency, vf); +} + +static long radio_si4713_default(struct file *file, void *p, + bool valid_prio, unsigned int cmd, void *arg) +{ + return v4l2_device_call_until_err(get_v4l2_dev(file), 0, core, + ioctl, cmd, arg); +} + +static struct v4l2_ioctl_ops radio_si4713_ioctl_ops = { + .vidioc_querycap = radio_si4713_querycap, + .vidioc_g_modulator = radio_si4713_g_modulator, + .vidioc_s_modulator = radio_si4713_s_modulator, + .vidioc_g_frequency = radio_si4713_g_frequency, + .vidioc_s_frequency = radio_si4713_s_frequency, + .vidioc_log_status = v4l2_ctrl_log_status, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, + .vidioc_default = radio_si4713_default, +}; + +/* radio_si4713_vdev_template - video device interface */ +static struct video_device radio_si4713_vdev_template = { + .fops = &radio_si4713_fops, + .name = "radio-si4713", + .release = video_device_release_empty, + .ioctl_ops = &radio_si4713_ioctl_ops, + .vfl_dir = VFL_DIR_TX, +}; + +/* Platform driver interface */ +/* radio_si4713_pdriver_probe - probe for the device */ +static int radio_si4713_pdriver_probe(struct platform_device *pdev) +{ + struct radio_si4713_platform_data *pdata = pdev->dev.platform_data; + struct radio_si4713_device *rsdev; + struct i2c_adapter *adapter; + struct v4l2_subdev *sd; + int rval = 0; + + if (!pdata) { + dev_err(&pdev->dev, "Cannot proceed without platform data.\n"); + rval = -EINVAL; + goto exit; + } + + rsdev = devm_kzalloc(&pdev->dev, sizeof(*rsdev), GFP_KERNEL); + if (!rsdev) { + dev_err(&pdev->dev, "Failed to alloc video device.\n"); + rval = -ENOMEM; + goto exit; + } + mutex_init(&rsdev->lock); + + rval = v4l2_device_register(&pdev->dev, &rsdev->v4l2_dev); + if (rval) { + dev_err(&pdev->dev, "Failed to register v4l2 device.\n"); + goto exit; + } + + adapter = i2c_get_adapter(pdata->i2c_bus); + if (!adapter) { + dev_err(&pdev->dev, "Cannot get i2c adapter %d\n", + pdata->i2c_bus); + rval = -ENODEV; + goto unregister_v4l2_dev; + } + + sd = v4l2_i2c_new_subdev_board(&rsdev->v4l2_dev, adapter, + pdata->subdev_board_info, NULL); + if (!sd) { + dev_err(&pdev->dev, "Cannot get v4l2 subdevice\n"); + rval = -ENODEV; + goto put_adapter; + } + + rsdev->radio_dev = radio_si4713_vdev_template; + rsdev->radio_dev.v4l2_dev = &rsdev->v4l2_dev; + rsdev->radio_dev.ctrl_handler = sd->ctrl_handler; + set_bit(V4L2_FL_USE_FH_PRIO, &rsdev->radio_dev.flags); + /* Serialize all access to the si4713 */ + rsdev->radio_dev.lock = &rsdev->lock; + video_set_drvdata(&rsdev->radio_dev, rsdev); + if (video_register_device(&rsdev->radio_dev, VFL_TYPE_RADIO, radio_nr)) { + dev_err(&pdev->dev, "Could not register video device.\n"); + rval = -EIO; + goto put_adapter; + } + dev_info(&pdev->dev, "New device successfully probed\n"); + + goto exit; + +put_adapter: + i2c_put_adapter(adapter); +unregister_v4l2_dev: + v4l2_device_unregister(&rsdev->v4l2_dev); +exit: + return rval; +} + +/* radio_si4713_pdriver_remove - remove the device */ +static int radio_si4713_pdriver_remove(struct platform_device *pdev) +{ + struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev); + struct v4l2_subdev *sd = list_entry(v4l2_dev->subdevs.next, + struct v4l2_subdev, list); + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct radio_si4713_device *rsdev; + + rsdev = container_of(v4l2_dev, struct radio_si4713_device, v4l2_dev); + video_unregister_device(&rsdev->radio_dev); + i2c_put_adapter(client->adapter); + v4l2_device_unregister(&rsdev->v4l2_dev); + + return 0; +} + +static struct platform_driver radio_si4713_pdriver = { + .driver = { + .name = "radio-si4713", + .owner = THIS_MODULE, + }, + .probe = radio_si4713_pdriver_probe, + .remove = radio_si4713_pdriver_remove, +}; + +module_platform_driver(radio_si4713_pdriver); diff --git a/drivers/media/radio/si4713/si4713.c b/drivers/media/radio/si4713/si4713.c new file mode 100644 index 000000000000..4f3308f91608 --- /dev/null +++ b/drivers/media/radio/si4713/si4713.c @@ -0,0 +1,1532 @@ +/* + * drivers/media/radio/si4713-i2c.c + * + * Silicon Labs Si4713 FM Radio Transmitter I2C commands. + * + * Copyright (c) 2009 Nokia Corporation + * Contact: Eduardo Valentin + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "si4713.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 "); +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_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)); + +#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; +} + +/* 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]; + + rval = si4713_send_command(sdev, SI4713_CMD_GET_REV, + NULL, 0, + resp, ARRAY_SIZE(resp), + DEFAULT_TIMEOUT); + + if (rval < 0) + return rval; + + 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; + } + 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) +{ + if (value) + return si4713_powerup(sdev); + return si4713_powerdown(sdev); +} + +static int si4713_set_mute(struct si4713_device *sdev, u16 mute) +{ + int rval = 0; + + mute = set_mute(mute); + + if (sdev->power_state) + rval = si4713_write_property(sdev, + SI4713_TX_LINE_INPUT_MUTE, mute); + + 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); + + 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) + return rval; + } + + /* 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) + return rval; + + rval = si4713_write_property(sdev, + SI4713_TX_RDS_PS_REPEAT_COUNT, + DEFAULT_RDS_PS_REPEAT_COUNT * 2); + if (rval < 0) + return rval; + } + + 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; + + if (!sdev->power_state) + return rval; + + rval = si4713_tx_rds_buff(sdev, RDS_BLOCK_CLEAR, 0, 0, 0, &left); + if (rval < 0) + return rval; + + if (!strlen(rt)) + return rval; + + 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) + return rval; + + t_index += RDS_RADIOTEXT_BLK_SIZE; + + if (cr_inserted) + break; + } while (left > 0); + + 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; + +/* TODO: check that power_level and antenna_capacitor really are not + changed by the hardware. If they are, then these controls should become + volatiles. + sdev->power_level = p; + sdev->antenna_capacitor = a;*/ + sdev->tune_rnl = n; + +exit: + return rval; +} + +static int si4713_choose_econtrol_action(struct si4713_device *sdev, u32 id, + 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; + break; + case V4L2_CID_AUDIO_COMPRESSION_THRESHOLD: + *property = SI4713_TX_ACOMP_THRESHOLD; + *mul = 1; + break; + case V4L2_CID_AUDIO_COMPRESSION_GAIN: + *property = SI4713_TX_ACOMP_GAIN; + *mul = 1; + break; + case V4L2_CID_PILOT_TONE_FREQUENCY: + *property = SI4713_TX_PILOT_FREQUENCY; + *mul = 1; + break; + case V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME: + *property = SI4713_TX_ACOMP_ATTACK_TIME; + *mul = ATTACK_TIME_UNIT; + break; + case V4L2_CID_PILOT_TONE_DEVIATION: + *property = SI4713_TX_PILOT_DEVIATION; + *mul = 10; + break; + case V4L2_CID_AUDIO_LIMITER_DEVIATION: + *property = SI4713_TX_AUDIO_DEVIATION; + *mul = 10; + break; + case V4L2_CID_RDS_TX_DEVIATION: + *property = SI4713_TX_RDS_DEVIATION; + *mul = 1; + break; + + case V4L2_CID_RDS_TX_PTY: + *property = SI4713_TX_RDS_PS_MISC; + *bit = 5; + *mask = 0x1F << 5; + break; + case V4L2_CID_AUDIO_LIMITER_ENABLED: + *property = SI4713_TX_ACOMP_ENABLE; + *bit = 1; + *mask = 1 << 1; + break; + case V4L2_CID_AUDIO_COMPRESSION_ENABLED: + *property = SI4713_TX_ACOMP_ENABLE; + *bit = 0; + *mask = 1 << 0; + break; + case V4L2_CID_PILOT_TONE_ENABLED: + *property = SI4713_TX_COMPONENT_ENABLE; + *bit = 0; + *mask = 1 << 0; + break; + + case V4L2_CID_AUDIO_LIMITER_RELEASE_TIME: + *property = SI4713_TX_LIMITER_RELEASE_TIME; + *table = limiter_times; + *size = ARRAY_SIZE(limiter_times); + break; + case V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME: + *property = SI4713_TX_ACOMP_RELEASE_TIME; + *table = acomp_rtimes; + *size = ARRAY_SIZE(acomp_rtimes); + break; + case V4L2_CID_TUNE_PREEMPHASIS: + *property = SI4713_TX_PREEMPHASIS; + *table = preemphasis_values; + *size = ARRAY_SIZE(preemphasis_values); + break; + + default: + rval = -EINVAL; + break; + } + + return rval; +} + +static int si4713_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *f); +static int si4713_s_modulator(struct v4l2_subdev *sd, const 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_frequency f; + struct v4l2_modulator vm; + int rval; + + /* Device procedure needs to set frequency first */ + f.tuner = 0; + f.frequency = sdev->frequency ? sdev->frequency : DEFAULT_FREQUENCY; + f.frequency = si4713_to_v4l2(f.frequency); + rval = si4713_s_frequency(&sdev->sd, &f); + + vm.index = 0; + if (sdev->stereo) + vm.txsubchans = V4L2_TUNER_SUB_STEREO; + else + vm.txsubchans = V4L2_TUNER_SUB_MONO; + if (sdev->rds_enabled) + vm.txsubchans |= V4L2_TUNER_SUB_RDS; + si4713_s_modulator(&sdev->sd, &vm); + + 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) + return rval; + + rval = si4713_checkrev(sdev); + if (rval < 0) + return rval; + + rval = si4713_set_power_state(sdev, POWER_OFF); + if (rval < 0) + return rval; + + + sdev->frequency = DEFAULT_FREQUENCY; + sdev->stereo = 1; + sdev->tune_rnl = DEFAULT_TUNE_RNL; + return 0; +} + +/* si4713_s_ctrl - set the value of a control */ +static int si4713_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct si4713_device *sdev = + container_of(ctrl->handler, struct si4713_device, ctrl_handler); + u32 val = 0; + s32 bit = 0, mask = 0; + u16 property = 0; + int mul = 0; + unsigned long *table = NULL; + int size = 0; + bool force = false; + int c; + int ret = 0; + + if (ctrl->id != V4L2_CID_AUDIO_MUTE) + return -EINVAL; + if (ctrl->is_new) { + if (ctrl->val) { + ret = si4713_set_mute(sdev, ctrl->val); + if (!ret) + ret = si4713_set_power_state(sdev, POWER_DOWN); + return ret; + } + ret = si4713_set_power_state(sdev, POWER_UP); + if (!ret) + ret = si4713_set_mute(sdev, ctrl->val); + if (!ret) + ret = si4713_setup(sdev); + if (ret) + return ret; + force = true; + } + + if (!sdev->power_state) + return 0; + + for (c = 1; !ret && c < ctrl->ncontrols; c++) { + ctrl = ctrl->cluster[c]; + + if (!force && !ctrl->is_new) + continue; + + switch (ctrl->id) { + case V4L2_CID_RDS_TX_PS_NAME: + ret = si4713_set_rds_ps_name(sdev, ctrl->string); + break; + + case V4L2_CID_RDS_TX_RADIO_TEXT: + ret = si4713_set_rds_radio_text(sdev, ctrl->string); + break; + + case V4L2_CID_TUNE_ANTENNA_CAPACITOR: + /* don't handle this control if we force setting all + * controls since in that case it will be handled by + * V4L2_CID_TUNE_POWER_LEVEL. */ + if (force) + break; + /* fall through */ + case V4L2_CID_TUNE_POWER_LEVEL: + ret = si4713_tx_tune_power(sdev, + sdev->tune_pwr_level->val, sdev->tune_ant_cap->val); + if (!ret) { + /* Make sure we don't set this twice */ + sdev->tune_ant_cap->is_new = false; + sdev->tune_pwr_level->is_new = false; + } + break; + + default: + ret = si4713_choose_econtrol_action(sdev, ctrl->id, &bit, + &mask, &property, &mul, &table, &size); + if (ret < 0) + break; + + val = ctrl->val; + if (mul) { + val = val / mul; + } else if (table) { + ret = usecs_to_dev(val, table, size); + if (ret < 0) + break; + val = ret; + ret = 0; + } + + if (mask) { + ret = si4713_read_property(sdev, property, &val); + if (ret < 0) + break; + val = set_bits(val, ctrl->val, bit, mask); + } + + ret = si4713_write_property(sdev, property, val); + if (ret < 0) + break; + if (mask) + val = ctrl->val; + break; + } + } + + return ret; +} + +/* si4713_ioctl - deal with private ioctls (only rnl for now) */ +static 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; + + 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) + return rval; + /* get results from tune status */ + rval = si4713_update_tune_status(sdev); + if (rval < 0) + return rval; + } + rnl->rnl = sdev->tune_rnl; + break; + + default: + /* nothing */ + rval = -ENOIOCTLCMD; + } + + return rval; +} + +/* 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) + return -ENODEV; + + if (vm->index > 0) + return -EINVAL; + + 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); + + if (sdev->power_state) { + u32 comp_en = 0; + + rval = si4713_read_property(sdev, SI4713_TX_COMPONENT_ENABLE, + &comp_en); + if (rval < 0) + return rval; + + sdev->stereo = get_status_bit(comp_en, 1, 1 << 1); + } + + /* 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_enabled) + vm->txsubchans |= V4L2_TUNER_SUB_RDS; + else + vm->txsubchans &= ~V4L2_TUNER_SUB_RDS; + + return rval; +} + +/* si4713_s_modulator - set modulator attributes */ +static int si4713_s_modulator(struct v4l2_subdev *sd, const 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); + + if (sdev->power_state) { + rval = si4713_read_property(sdev, + SI4713_TX_COMPONENT_ENABLE, &p); + if (rval < 0) + return rval; + + 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) + return rval; + } + + sdev->stereo = stereo; + sdev->rds_enabled = rds; + + 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; + + if (f->tuner) + return -EINVAL; + + if (sdev->power_state) { + u16 freq; + u8 p, a, n; + + rval = si4713_tx_tune_status(sdev, 0x00, &freq, &p, &a, &n); + if (rval < 0) + return rval; + + sdev->frequency = freq; + } + + f->frequency = si4713_to_v4l2(sdev->frequency); + + return rval; +} + +/* si4713_s_frequency - set tuner or modulator radio frequency */ +static int si4713_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *f) +{ + struct si4713_device *sdev = to_si4713_device(sd); + int rval = 0; + u16 frequency = v4l2_to_si4713(f->frequency); + + if (f->tuner) + return -EINVAL; + + /* Check frequency range */ + frequency = clamp_t(u16, frequency, FREQ_RANGE_LOW, FREQ_RANGE_HIGH); + + if (sdev->power_state) { + rval = si4713_tx_tune_freq(sdev, frequency); + if (rval < 0) + return rval; + frequency = rval; + rval = 0; + } + sdev->frequency = frequency; + + return rval; +} + +static const struct v4l2_ctrl_ops si4713_ctrl_ops = { + .s_ctrl = si4713_s_ctrl, +}; + +static const struct v4l2_subdev_core_ops si4713_subdev_core_ops = { + .ioctl = si4713_ioctl, +}; + +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; + struct v4l2_ctrl_handler *hdl; + 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); + + init_completion(&sdev->work); + + hdl = &sdev->ctrl_handler; + v4l2_ctrl_handler_init(hdl, 20); + sdev->mute = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, + V4L2_CID_AUDIO_MUTE, 0, 1, 1, DEFAULT_MUTE); + + sdev->rds_pi = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, + V4L2_CID_RDS_TX_PI, 0, 0xffff, 1, DEFAULT_RDS_PI); + sdev->rds_pty = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, + V4L2_CID_RDS_TX_PTY, 0, 31, 1, DEFAULT_RDS_PTY); + sdev->rds_deviation = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, + V4L2_CID_RDS_TX_DEVIATION, 0, MAX_RDS_DEVIATION, + 10, DEFAULT_RDS_DEVIATION); + /* + * Report step as 8. From RDS spec, psname + * should be 8. But there are receivers which scroll strings + * sized as 8xN. + */ + sdev->rds_ps_name = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, + V4L2_CID_RDS_TX_PS_NAME, 0, MAX_RDS_PS_NAME, 8, 0); + /* + * 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. + */ + sdev->rds_radio_text = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, + V4L2_CID_RDS_TX_RADIO_TEXT, 0, MAX_RDS_RADIO_TEXT, 32, 0); + + sdev->limiter_enabled = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, + V4L2_CID_AUDIO_LIMITER_ENABLED, 0, 1, 1, 1); + sdev->limiter_release_time = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, + V4L2_CID_AUDIO_LIMITER_RELEASE_TIME, 250, + MAX_LIMITER_RELEASE_TIME, 10, DEFAULT_LIMITER_RTIME); + sdev->limiter_deviation = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, + V4L2_CID_AUDIO_LIMITER_DEVIATION, 0, + MAX_LIMITER_DEVIATION, 10, DEFAULT_LIMITER_DEV); + + sdev->compression_enabled = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, + V4L2_CID_AUDIO_COMPRESSION_ENABLED, 0, 1, 1, 1); + sdev->compression_gain = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, + V4L2_CID_AUDIO_COMPRESSION_GAIN, 0, MAX_ACOMP_GAIN, 1, + DEFAULT_ACOMP_GAIN); + sdev->compression_threshold = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, + V4L2_CID_AUDIO_COMPRESSION_THRESHOLD, MIN_ACOMP_THRESHOLD, + MAX_ACOMP_THRESHOLD, 1, + DEFAULT_ACOMP_THRESHOLD); + sdev->compression_attack_time = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, + V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME, 0, + MAX_ACOMP_ATTACK_TIME, 500, DEFAULT_ACOMP_ATIME); + sdev->compression_release_time = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, + V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME, 100000, + MAX_ACOMP_RELEASE_TIME, 100000, DEFAULT_ACOMP_RTIME); + + sdev->pilot_tone_enabled = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, + V4L2_CID_PILOT_TONE_ENABLED, 0, 1, 1, 1); + sdev->pilot_tone_deviation = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, + V4L2_CID_PILOT_TONE_DEVIATION, 0, MAX_PILOT_DEVIATION, + 10, DEFAULT_PILOT_DEVIATION); + sdev->pilot_tone_freq = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, + V4L2_CID_PILOT_TONE_FREQUENCY, 0, MAX_PILOT_FREQUENCY, + 1, DEFAULT_PILOT_FREQUENCY); + + sdev->tune_preemphasis = v4l2_ctrl_new_std_menu(hdl, &si4713_ctrl_ops, + V4L2_CID_TUNE_PREEMPHASIS, + V4L2_PREEMPHASIS_75_uS, 0, V4L2_PREEMPHASIS_50_uS); + sdev->tune_pwr_level = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, + V4L2_CID_TUNE_POWER_LEVEL, 0, 120, 1, DEFAULT_POWER_LEVEL); + sdev->tune_ant_cap = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, + V4L2_CID_TUNE_ANTENNA_CAPACITOR, 0, 191, 1, 0); + + if (hdl->error) { + rval = hdl->error; + goto free_ctrls; + } + v4l2_ctrl_cluster(20, &sdev->mute); + sdev->sd.ctrl_handler = hdl; + + if (client->irq) { + rval = request_irq(client->irq, + si4713_handler, IRQF_TRIGGER_FALLING, + 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); +free_ctrls: + v4l2_ctrl_handler_free(hdl); +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); + v4l2_ctrl_handler_free(sd->ctrl_handler); + 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); diff --git a/drivers/media/radio/si4713/si4713.h b/drivers/media/radio/si4713/si4713.h new file mode 100644 index 000000000000..25cdea26343b --- /dev/null +++ b/drivers/media/radio/si4713/si4713.h @@ -0,0 +1,238 @@ +/* + * drivers/media/radio/si4713-i2c.h + * + * Property and commands definitions for Si4713 radio transmitter chip. + * + * Copyright (c) 2008 Instituto Nokia de Tecnologia - INdT + * Contact: Eduardo Valentin + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + * + */ + +#ifndef SI4713_I2C_H +#define SI4713_I2C_H + +#include +#include +#include + +#define SI4713_PRODUCT_NUMBER 0x0D + +/* Command Timeouts */ +#define DEFAULT_TIMEOUT 500 +#define TIMEOUT_SET_PROPERTY 20 +#define TIMEOUT_TX_TUNE_POWER 30000 +#define TIMEOUT_TX_TUNE 110000 +#define TIMEOUT_POWER_UP 200000 + +/* + * Command and its arguments definitions + */ +#define SI4713_PWUP_CTSIEN (1<<7) +#define SI4713_PWUP_GPO2OEN (1<<6) +#define SI4713_PWUP_PATCH (1<<5) +#define SI4713_PWUP_XOSCEN (1<<4) +#define SI4713_PWUP_FUNC_TX 0x02 +#define SI4713_PWUP_FUNC_PATCH 0x0F +#define SI4713_PWUP_OPMOD_ANALOG 0x50 +#define SI4713_PWUP_OPMOD_DIGITAL 0x0F +#define SI4713_PWUP_NARGS 2 +#define SI4713_PWUP_NRESP 1 +#define SI4713_CMD_POWER_UP 0x01 + +#define SI4713_GETREV_NRESP 9 +#define SI4713_CMD_GET_REV 0x10 + +#define SI4713_PWDN_NRESP 1 +#define SI4713_CMD_POWER_DOWN 0x11 + +#define SI4713_SET_PROP_NARGS 5 +#define SI4713_SET_PROP_NRESP 1 +#define SI4713_CMD_SET_PROPERTY 0x12 + +#define SI4713_GET_PROP_NARGS 3 +#define SI4713_GET_PROP_NRESP 4 +#define SI4713_CMD_GET_PROPERTY 0x13 + +#define SI4713_GET_STATUS_NRESP 1 +#define SI4713_CMD_GET_INT_STATUS 0x14 + +#define SI4713_CMD_PATCH_ARGS 0x15 +#define SI4713_CMD_PATCH_DATA 0x16 + +#define SI4713_MAX_FREQ 10800 +#define SI4713_MIN_FREQ 7600 +#define SI4713_TXFREQ_NARGS 3 +#define SI4713_TXFREQ_NRESP 1 +#define SI4713_CMD_TX_TUNE_FREQ 0x30 + +#define SI4713_MAX_POWER 120 +#define SI4713_MIN_POWER 88 +#define SI4713_MAX_ANTCAP 191 +#define SI4713_MIN_ANTCAP 0 +#define SI4713_TXPWR_NARGS 4 +#define SI4713_TXPWR_NRESP 1 +#define SI4713_CMD_TX_TUNE_POWER 0x31 + +#define SI4713_TXMEA_NARGS 4 +#define SI4713_TXMEA_NRESP 1 +#define SI4713_CMD_TX_TUNE_MEASURE 0x32 + +#define SI4713_INTACK_MASK 0x01 +#define SI4713_TXSTATUS_NARGS 1 +#define SI4713_TXSTATUS_NRESP 8 +#define SI4713_CMD_TX_TUNE_STATUS 0x33 + +#define SI4713_OVERMOD_BIT (1 << 2) +#define SI4713_IALH_BIT (1 << 1) +#define SI4713_IALL_BIT (1 << 0) +#define SI4713_ASQSTATUS_NARGS 1 +#define SI4713_ASQSTATUS_NRESP 5 +#define SI4713_CMD_TX_ASQ_STATUS 0x34 + +#define SI4713_RDSBUFF_MODE_MASK 0x87 +#define SI4713_RDSBUFF_NARGS 7 +#define SI4713_RDSBUFF_NRESP 6 +#define SI4713_CMD_TX_RDS_BUFF 0x35 + +#define SI4713_RDSPS_PSID_MASK 0x1F +#define SI4713_RDSPS_NARGS 5 +#define SI4713_RDSPS_NRESP 1 +#define SI4713_CMD_TX_RDS_PS 0x36 + +#define SI4713_CMD_GPO_CTL 0x80 +#define SI4713_CMD_GPO_SET 0x81 + +/* + * Bits from status response + */ +#define SI4713_CTS (1<<7) +#define SI4713_ERR (1<<6) +#define SI4713_RDS_INT (1<<2) +#define SI4713_ASQ_INT (1<<1) +#define SI4713_STC_INT (1<<0) + +/* + * Property definitions + */ +#define SI4713_GPO_IEN 0x0001 +#define SI4713_DIG_INPUT_FORMAT 0x0101 +#define SI4713_DIG_INPUT_SAMPLE_RATE 0x0103 +#define SI4713_REFCLK_FREQ 0x0201 +#define SI4713_REFCLK_PRESCALE 0x0202 +#define SI4713_TX_COMPONENT_ENABLE 0x2100 +#define SI4713_TX_AUDIO_DEVIATION 0x2101 +#define SI4713_TX_PILOT_DEVIATION 0x2102 +#define SI4713_TX_RDS_DEVIATION 0x2103 +#define SI4713_TX_LINE_INPUT_LEVEL 0x2104 +#define SI4713_TX_LINE_INPUT_MUTE 0x2105 +#define SI4713_TX_PREEMPHASIS 0x2106 +#define SI4713_TX_PILOT_FREQUENCY 0x2107 +#define SI4713_TX_ACOMP_ENABLE 0x2200 +#define SI4713_TX_ACOMP_THRESHOLD 0x2201 +#define SI4713_TX_ACOMP_ATTACK_TIME 0x2202 +#define SI4713_TX_ACOMP_RELEASE_TIME 0x2203 +#define SI4713_TX_ACOMP_GAIN 0x2204 +#define SI4713_TX_LIMITER_RELEASE_TIME 0x2205 +#define SI4713_TX_ASQ_INTERRUPT_SOURCE 0x2300 +#define SI4713_TX_ASQ_LEVEL_LOW 0x2301 +#define SI4713_TX_ASQ_DURATION_LOW 0x2302 +#define SI4713_TX_ASQ_LEVEL_HIGH 0x2303 +#define SI4713_TX_ASQ_DURATION_HIGH 0x2304 +#define SI4713_TX_RDS_INTERRUPT_SOURCE 0x2C00 +#define SI4713_TX_RDS_PI 0x2C01 +#define SI4713_TX_RDS_PS_MIX 0x2C02 +#define SI4713_TX_RDS_PS_MISC 0x2C03 +#define SI4713_TX_RDS_PS_REPEAT_COUNT 0x2C04 +#define SI4713_TX_RDS_PS_MESSAGE_COUNT 0x2C05 +#define SI4713_TX_RDS_PS_AF 0x2C06 +#define SI4713_TX_RDS_FIFO_SIZE 0x2C07 + +#define PREEMPHASIS_USA 75 +#define PREEMPHASIS_EU 50 +#define PREEMPHASIS_DISABLED 0 +#define FMPE_USA 0x00 +#define FMPE_EU 0x01 +#define FMPE_DISABLED 0x02 + +#define POWER_UP 0x01 +#define POWER_DOWN 0x00 + +#define MAX_RDS_PTY 31 +#define MAX_RDS_DEVIATION 90000 + +/* + * PSNAME is known to be defined as 8 character sized (RDS Spec). + * However, there is receivers which scroll PSNAME 8xN sized. + */ +#define MAX_RDS_PS_NAME 96 + +/* + * MAX_RDS_RADIO_TEXT is known to be defined as 32 (2A group) or 64 (2B group) + * character sized (RDS Spec). + * However, there is receivers which scroll them as well. + */ +#define MAX_RDS_RADIO_TEXT 384 + +#define MAX_LIMITER_RELEASE_TIME 102390 +#define MAX_LIMITER_DEVIATION 90000 + +#define MAX_PILOT_DEVIATION 90000 +#define MAX_PILOT_FREQUENCY 19000 + +#define MAX_ACOMP_RELEASE_TIME 1000000 +#define MAX_ACOMP_ATTACK_TIME 5000 +#define MAX_ACOMP_THRESHOLD 0 +#define MIN_ACOMP_THRESHOLD (-40) +#define MAX_ACOMP_GAIN 20 + +#define SI4713_NUM_SUPPLIES 2 + +/* + * si4713_device - private data + */ +struct si4713_device { + /* v4l2_subdev and i2c reference (v4l2_subdev priv data) */ + struct v4l2_subdev sd; + struct v4l2_ctrl_handler ctrl_handler; + /* private data structures */ + struct { /* si4713 control cluster */ + /* This is one big cluster since the mute control + * powers off the device and after unmuting again all + * controls need to be set at once. The only way of doing + * that is by making it one big cluster. */ + struct v4l2_ctrl *mute; + struct v4l2_ctrl *rds_ps_name; + struct v4l2_ctrl *rds_radio_text; + struct v4l2_ctrl *rds_pi; + struct v4l2_ctrl *rds_deviation; + struct v4l2_ctrl *rds_pty; + struct v4l2_ctrl *compression_enabled; + struct v4l2_ctrl *compression_threshold; + struct v4l2_ctrl *compression_gain; + struct v4l2_ctrl *compression_attack_time; + struct v4l2_ctrl *compression_release_time; + struct v4l2_ctrl *pilot_tone_enabled; + struct v4l2_ctrl *pilot_tone_freq; + struct v4l2_ctrl *pilot_tone_deviation; + struct v4l2_ctrl *limiter_enabled; + struct v4l2_ctrl *limiter_deviation; + struct v4l2_ctrl *limiter_release_time; + struct v4l2_ctrl *tune_preemphasis; + struct v4l2_ctrl *tune_pwr_level; + struct v4l2_ctrl *tune_ant_cap; + }; + struct completion work; + struct regulator_bulk_data supplies[SI4713_NUM_SUPPLIES]; + int gpio_reset; + u32 power_state; + u32 rds_enabled; + u32 frequency; + u32 preemphasis; + u32 stereo; + u32 tune_rnl; +}; +#endif /* ifndef SI4713_I2C_H */