diff options
author | Andrey Smirnov <andreysm@charmander.(none)> | 2013-04-18 20:58:30 +0400 |
---|---|---|
committer | Samuel Ortiz <sameo@linux.intel.com> | 2013-04-19 20:38:13 +0400 |
commit | 9b8e1a5e4670b3b24c0e35c0884b4185f17fceab (patch) | |
tree | 12aa8af05621933720326d987fa1857283e5fd2a | |
parent | 379550698c1583db63ac62e62f465782f10418c2 (diff) | |
download | linux-9b8e1a5e4670b3b24c0e35c0884b4185f17fceab.tar.xz |
mfd: si476x: Add header files and Kbuild plumbing
This patch adds all necessary header files and Kbuild plumbing for the
core driver for Silicon Laboratories Si476x series of AM/FM tuner
chips.
The driver as a whole is implemented as an MFD device and this patch
adds a core portion of it that provides all the necessary
functionality to the two other drivers that represent radio and audio
codec subsystems of the chip.
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
-rw-r--r-- | drivers/mfd/Kconfig | 13 | ||||
-rw-r--r-- | drivers/mfd/Makefile | 4 | ||||
-rw-r--r-- | include/linux/mfd/si476x-core.h | 533 | ||||
-rw-r--r-- | include/linux/mfd/si476x-platform.h | 267 | ||||
-rw-r--r-- | include/linux/mfd/si476x-reports.h | 163 |
5 files changed, 980 insertions, 0 deletions
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 9de05020c660..7acd863287d1 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -487,6 +487,19 @@ config MFD_SEC_CORE additional drivers must be enabled in order to use the functionality of the device +config MFD_SI476X_CORE + tristate "Silicon Laboratories 4761/64/68 AM/FM radio." + depends on I2C + select MFD_CORE + select REGMAP_I2C + help + This is the core driver for the SI476x series of AM/FM + radio. This MFD driver connects the radio-si476x V4L2 module + and the si476x audio codec. + + To compile this driver as a module, choose M here: the + module will be called si476x-core. + config MFD_SM501 tristate "Silicon Motion SM501" ---help--- diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 067656651b02..718e94a2a9a7 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -134,6 +134,10 @@ obj-$(CONFIG_MFD_JZ4740_ADC) += jz4740-adc.o obj-$(CONFIG_MFD_TPS6586X) += tps6586x.o obj-$(CONFIG_MFD_VX855) += vx855.o obj-$(CONFIG_MFD_WL1273_CORE) += wl1273-core.o + +si476x-core-y := si476x-cmd.o si476x-prop.o si476x-i2c.o +obj-$(CONFIG_MFD_SI476X_CORE) += si476x-core.o + obj-$(CONFIG_MFD_CS5535) += cs5535-mfd.o obj-$(CONFIG_MFD_OMAP_USB_HOST) += omap-usb-host.o omap-usb-tll.o obj-$(CONFIG_MFD_PM8921_CORE) += pm8921-core.o diff --git a/include/linux/mfd/si476x-core.h b/include/linux/mfd/si476x-core.h new file mode 100644 index 000000000000..ede3022c03c4 --- /dev/null +++ b/include/linux/mfd/si476x-core.h @@ -0,0 +1,533 @@ +/* + * include/media/si476x-core.h -- Common definitions for si476x core + * device + * + * Copyright (C) 2012 Innovative Converged Devices(ICD) + * Copyright (C) 2013 Andrey Smirnov + * + * Author: Andrey Smirnov <andrew.smirnov@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * 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. + * + */ + +#ifndef SI476X_CORE_H +#define SI476X_CORE_H + +#include <linux/kfifo.h> +#include <linux/atomic.h> +#include <linux/i2c.h> +#include <linux/regmap.h> +#include <linux/mutex.h> +#include <linux/mfd/core.h> +#include <linux/videodev2.h> +#include <linux/regulator/consumer.h> + +#include <linux/mfd/si476x-platform.h> +#include <linux/mfd/si476x-reports.h> + +/* Command Timeouts */ +#define SI476X_DEFAULT_TIMEOUT 100000 +#define SI476X_TIMEOUT_TUNE 700000 +#define SI476X_TIMEOUT_POWER_UP 330000 +#define SI476X_STATUS_POLL_US 0 + +/* -------------------- si476x-i2c.c ----------------------- */ + +enum si476x_freq_supported_chips { + SI476X_CHIP_SI4761 = 1, + SI476X_CHIP_SI4764, + SI476X_CHIP_SI4768, +}; + +enum si476x_part_revisions { + SI476X_REVISION_A10 = 0, + SI476X_REVISION_A20 = 1, + SI476X_REVISION_A30 = 2, +}; + +enum si476x_mfd_cells { + SI476X_RADIO_CELL = 0, + SI476X_CODEC_CELL, + SI476X_MFD_CELLS, +}; + +/** + * enum si476x_power_state - possible power state of the si476x + * device. + * + * @SI476X_POWER_DOWN: In this state all regulators are turned off + * and the reset line is pulled low. The device is completely + * inactive. + * @SI476X_POWER_UP_FULL: In this state all the power regualtors are + * turned on, reset line pulled high, IRQ line is enabled(polling is + * active for polling use scenario) and device is turned on with + * POWER_UP command. The device is ready to be used. + * @SI476X_POWER_INCONSISTENT: This state indicates that previous + * power down was inconsistent, meaning some of the regulators were + * not turned down and thus use of the device, without power-cycling + * is impossible. + */ +enum si476x_power_state { + SI476X_POWER_DOWN = 0, + SI476X_POWER_UP_FULL = 1, + SI476X_POWER_INCONSISTENT = 2, +}; + +/** + * struct si476x_core - internal data structure representing the + * underlying "core" device which all the MFD cell-devices use. + * + * @client: Actual I2C client used to transfer commands to the chip. + * @chip_id: Last digit of the chip model(E.g. "1" for SI4761) + * @cells: MFD cell devices created by this driver. + * @cmd_lock: Mutex used to serialize all the requests to the core + * device. This filed should not be used directly. Instead + * si476x_core_lock()/si476x_core_unlock() should be used to get + * exclusive access to the "core" device. + * @users: Active users counter(Used by the radio cell) + * @rds_read_queue: Wait queue used to wait for RDS data. + * @rds_fifo: FIFO in which all the RDS data received from the chip is + * placed. + * @rds_fifo_drainer: Worker that drains on-chip RDS FIFO. + * @rds_drainer_is_working: Flag used for launching only one instance + * of the @rds_fifo_drainer. + * @rds_drainer_status_lock: Lock used to guard access to the + * @rds_drainer_is_working variable. + * @command: Wait queue for wainting on the command comapletion. + * @cts: Clear To Send flag set upon receiving first status with CTS + * set. + * @tuning: Wait queue used for wainting for tune/seek comand + * completion. + * @stc: Similar to @cts, but for the STC bit of the status value. + * @power_up_parameters: Parameters used as argument for POWER_UP + * command when the device is started. + * @state: Current power state of the device. + * @supplues: Structure containing handles to all power supplies used + * by the device (NULL ones are ignored). + * @gpio_reset: GPIO pin connectet to the RSTB pin of the chip. + * @pinmux: Chip's configurable pins configuration. + * @diversity_mode: Chips role when functioning in diversity mode. + * @status_monitor: Polling worker used in polling use case scenarion + * (when IRQ is not avalible). + * @revision: Chip's running firmware revision number(Used for correct + * command set support). + */ + +struct si476x_core { + struct i2c_client *client; + struct regmap *regmap; + int chip_id; + struct mfd_cell cells[SI476X_MFD_CELLS]; + + struct mutex cmd_lock; /* for serializing fm radio operations */ + atomic_t users; + + wait_queue_head_t rds_read_queue; + struct kfifo rds_fifo; + struct work_struct rds_fifo_drainer; + bool rds_drainer_is_working; + struct mutex rds_drainer_status_lock; + + wait_queue_head_t command; + atomic_t cts; + + wait_queue_head_t tuning; + atomic_t stc; + + struct si476x_power_up_args power_up_parameters; + + enum si476x_power_state power_state; + + struct regulator_bulk_data supplies[4]; + + int gpio_reset; + + struct si476x_pinmux pinmux; + enum si476x_phase_diversity_mode diversity_mode; + + atomic_t is_alive; + + struct delayed_work status_monitor; +#define SI476X_WORK_TO_CORE(w) container_of(to_delayed_work(w), \ + struct si476x_core, \ + status_monitor) + + int revision; + + int rds_fifo_depth; +}; + +static inline struct si476x_core *i2c_mfd_cell_to_core(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev->parent); + return i2c_get_clientdata(client); +} + + +/** + * si476x_core_lock() - lock the core device to get an exclusive access + * to it. + */ +static inline void si476x_core_lock(struct si476x_core *core) +{ + mutex_lock(&core->cmd_lock); +} + +/** + * si476x_core_unlock() - unlock the core device to relinquish an + * exclusive access to it. + */ +static inline void si476x_core_unlock(struct si476x_core *core) +{ + mutex_unlock(&core->cmd_lock); +} + +/* *_TUNE_FREQ family of commands accept frequency in multiples of + 10kHz */ +static inline u16 hz_to_si476x(struct si476x_core *core, int freq) +{ + u16 result; + + switch (core->power_up_parameters.func) { + default: + case SI476X_FUNC_FM_RECEIVER: + result = freq / 10000; + break; + case SI476X_FUNC_AM_RECEIVER: + result = freq / 1000; + break; + } + + return result; +} + +static inline int si476x_to_hz(struct si476x_core *core, u16 freq) +{ + int result; + + switch (core->power_up_parameters.func) { + default: + case SI476X_FUNC_FM_RECEIVER: + result = freq * 10000; + break; + case SI476X_FUNC_AM_RECEIVER: + result = freq * 1000; + break; + } + + return result; +} + +/* Since the V4L2_TUNER_CAP_LOW flag is supplied, V4L2 subsystem + * mesures frequency in 62.5 Hz units */ + +static inline int hz_to_v4l2(int freq) +{ + return (freq * 10) / 625; +} + +static inline int v4l2_to_hz(int freq) +{ + return (freq * 625) / 10; +} + +static inline u16 v4l2_to_si476x(struct si476x_core *core, int freq) +{ + return hz_to_si476x(core, v4l2_to_hz(freq)); +} + +static inline int si476x_to_v4l2(struct si476x_core *core, u16 freq) +{ + return hz_to_v4l2(si476x_to_hz(core, freq)); +} + + + +/** + * struct si476x_func_info - structure containing result of the + * FUNC_INFO command. + * + * @firmware.major: Firmware major number. + * @firmware.minor[...]: Firmware minor numbers. + * @patch_id: + * @func: Mode tuner is working in. + */ +struct si476x_func_info { + struct { + u8 major, minor[2]; + } firmware; + u16 patch_id; + enum si476x_func func; +}; + +/** + * struct si476x_power_down_args - structure used to pass parameters + * to POWER_DOWN command + * + * @xosc: true - Power down, but leav oscillator running. + * false - Full power down. + */ +struct si476x_power_down_args { + bool xosc; +}; + +/** + * enum si476x_tunemode - enum representing possible tune modes for + * the chip. + * @SI476X_TM_VALIDATED_NORMAL_TUNE: Unconditionally stay on the new + * channel after tune, tune status is valid. + * @SI476X_TM_INVALIDATED_FAST_TUNE: Unconditionally stay in the new + * channel after tune, tune status invalid. + * @SI476X_TM_VALIDATED_AF_TUNE: Jump back to previous channel if + * metric thresholds are not met. + * @SI476X_TM_VALIDATED_AF_CHECK: Unconditionally jump back to the + * previous channel. + */ +enum si476x_tunemode { + SI476X_TM_VALIDATED_NORMAL_TUNE = 0, + SI476X_TM_INVALIDATED_FAST_TUNE = 1, + SI476X_TM_VALIDATED_AF_TUNE = 2, + SI476X_TM_VALIDATED_AF_CHECK = 3, +}; + +/** + * enum si476x_smoothmetrics - enum containing the possible setting fo + * audio transitioning of the chip + * @SI476X_SM_INITIALIZE_AUDIO: Initialize audio state to match this + * new channel + * @SI476X_SM_TRANSITION_AUDIO: Transition audio state from previous + * channel values to the new values + */ +enum si476x_smoothmetrics { + SI476X_SM_INITIALIZE_AUDIO = 0, + SI476X_SM_TRANSITION_AUDIO = 1, +}; + +/** + * struct si476x_rds_status_report - the structure representing the + * response to 'FM_RD_STATUS' command + * @rdstpptyint: Traffic program flag(TP) and/or program type(PTY) + * code has changed. + * @rdspiint: Program indentifiaction(PI) code has changed. + * @rdssyncint: RDS synchronization has changed. + * @rdsfifoint: RDS was received and the RDS FIFO has at least + * 'FM_RDS_INTERRUPT_FIFO_COUNT' elements in it. + * @tpptyvalid: TP flag and PTY code are valid falg. + * @pivalid: PI code is valid flag. + * @rdssync: RDS is currently synchronized. + * @rdsfifolost: On or more RDS groups have been lost/discarded flag. + * @tp: Current channel's TP flag. + * @pty: Current channel's PTY code. + * @pi: Current channel's PI code. + * @rdsfifoused: Number of blocks remaining in the RDS FIFO (0 if + * empty). + */ +struct si476x_rds_status_report { + bool rdstpptyint, rdspiint, rdssyncint, rdsfifoint; + bool tpptyvalid, pivalid, rdssync, rdsfifolost; + bool tp; + + u8 pty; + u16 pi; + + u8 rdsfifoused; + u8 ble[4]; + + struct v4l2_rds_data rds[4]; +}; + +struct si476x_rsq_status_args { + bool primary; + bool rsqack; + bool attune; + bool cancel; + bool stcack; +}; + +enum si476x_injside { + SI476X_INJSIDE_AUTO = 0, + SI476X_INJSIDE_LOW = 1, + SI476X_INJSIDE_HIGH = 2, +}; + +struct si476x_tune_freq_args { + bool zifsr; + bool hd; + enum si476x_injside injside; + int freq; + enum si476x_tunemode tunemode; + enum si476x_smoothmetrics smoothmetrics; + int antcap; +}; + +int si476x_core_stop(struct si476x_core *, bool); +int si476x_core_start(struct si476x_core *, bool); +int si476x_core_set_power_state(struct si476x_core *, enum si476x_power_state); +bool si476x_core_has_am(struct si476x_core *); +bool si476x_core_has_diversity(struct si476x_core *); +bool si476x_core_is_a_secondary_tuner(struct si476x_core *); +bool si476x_core_is_a_primary_tuner(struct si476x_core *); +bool si476x_core_is_in_am_receiver_mode(struct si476x_core *core); +bool si476x_core_is_powered_up(struct si476x_core *core); + +enum si476x_i2c_type { + SI476X_I2C_SEND, + SI476X_I2C_RECV +}; + +int si476x_core_i2c_xfer(struct si476x_core *, + enum si476x_i2c_type, + char *, int); + + +/* -------------------- si476x-cmd.c ----------------------- */ + +int si476x_core_cmd_func_info(struct si476x_core *, struct si476x_func_info *); +int si476x_core_cmd_set_property(struct si476x_core *, u16, u16); +int si476x_core_cmd_get_property(struct si476x_core *, u16); +int si476x_core_cmd_dig_audio_pin_cfg(struct si476x_core *, + enum si476x_dclk_config, + enum si476x_dfs_config, + enum si476x_dout_config, + enum si476x_xout_config); +int si476x_core_cmd_zif_pin_cfg(struct si476x_core *, + enum si476x_iqclk_config, + enum si476x_iqfs_config, + enum si476x_iout_config, + enum si476x_qout_config); +int si476x_core_cmd_ic_link_gpo_ctl_pin_cfg(struct si476x_core *, + enum si476x_icin_config, + enum si476x_icip_config, + enum si476x_icon_config, + enum si476x_icop_config); +int si476x_core_cmd_ana_audio_pin_cfg(struct si476x_core *, + enum si476x_lrout_config); +int si476x_core_cmd_intb_pin_cfg(struct si476x_core *, enum si476x_intb_config, + enum si476x_a1_config); +int si476x_core_cmd_fm_seek_start(struct si476x_core *, bool, bool); +int si476x_core_cmd_am_seek_start(struct si476x_core *, bool, bool); +int si476x_core_cmd_fm_rds_status(struct si476x_core *, bool, bool, bool, + struct si476x_rds_status_report *); +int si476x_core_cmd_fm_rds_blockcount(struct si476x_core *, bool, + struct si476x_rds_blockcount_report *); +int si476x_core_cmd_fm_tune_freq(struct si476x_core *, + struct si476x_tune_freq_args *); +int si476x_core_cmd_am_tune_freq(struct si476x_core *, + struct si476x_tune_freq_args *); +int si476x_core_cmd_am_rsq_status(struct si476x_core *, + struct si476x_rsq_status_args *, + struct si476x_rsq_status_report *); +int si476x_core_cmd_fm_rsq_status(struct si476x_core *, + struct si476x_rsq_status_args *, + struct si476x_rsq_status_report *); +int si476x_core_cmd_power_up(struct si476x_core *, + struct si476x_power_up_args *); +int si476x_core_cmd_power_down(struct si476x_core *, + struct si476x_power_down_args *); +int si476x_core_cmd_fm_phase_div_status(struct si476x_core *); +int si476x_core_cmd_fm_phase_diversity(struct si476x_core *, + enum si476x_phase_diversity_mode); + +int si476x_core_cmd_fm_acf_status(struct si476x_core *, + struct si476x_acf_status_report *); +int si476x_core_cmd_am_acf_status(struct si476x_core *, + struct si476x_acf_status_report *); +int si476x_core_cmd_agc_status(struct si476x_core *, + struct si476x_agc_status_report *); + +enum si476x_power_grid_type { + SI476X_POWER_GRID_50HZ = 0, + SI476X_POWER_GRID_60HZ, +}; + +/* Properties */ + +enum si476x_interrupt_flags { + SI476X_STCIEN = (1 << 0), + SI476X_ACFIEN = (1 << 1), + SI476X_RDSIEN = (1 << 2), + SI476X_RSQIEN = (1 << 3), + + SI476X_ERRIEN = (1 << 6), + SI476X_CTSIEN = (1 << 7), + + SI476X_STCREP = (1 << 8), + SI476X_ACFREP = (1 << 9), + SI476X_RDSREP = (1 << 10), + SI476X_RSQREP = (1 << 11), +}; + +enum si476x_rdsint_sources { + SI476X_RDSTPPTY = (1 << 4), + SI476X_RDSPI = (1 << 3), + SI476X_RDSSYNC = (1 << 1), + SI476X_RDSRECV = (1 << 0), +}; + +enum si476x_status_response_bits { + SI476X_CTS = (1 << 7), + SI476X_ERR = (1 << 6), + /* Status response for WB receiver */ + SI476X_WB_ASQ_INT = (1 << 4), + SI476X_RSQ_INT = (1 << 3), + /* Status response for FM receiver */ + SI476X_FM_RDS_INT = (1 << 2), + SI476X_ACF_INT = (1 << 1), + SI476X_STC_INT = (1 << 0), +}; + +/* -------------------- si476x-prop.c ----------------------- */ + +enum si476x_common_receiver_properties { + SI476X_PROP_INT_CTL_ENABLE = 0x0000, + SI476X_PROP_DIGITAL_IO_INPUT_SAMPLE_RATE = 0x0200, + SI476X_PROP_DIGITAL_IO_INPUT_FORMAT = 0x0201, + SI476X_PROP_DIGITAL_IO_OUTPUT_SAMPLE_RATE = 0x0202, + SI476X_PROP_DIGITAL_IO_OUTPUT_FORMAT = 0x0203, + + SI476X_PROP_SEEK_BAND_BOTTOM = 0x1100, + SI476X_PROP_SEEK_BAND_TOP = 0x1101, + SI476X_PROP_SEEK_FREQUENCY_SPACING = 0x1102, + + SI476X_PROP_VALID_MAX_TUNE_ERROR = 0x2000, + SI476X_PROP_VALID_SNR_THRESHOLD = 0x2003, + SI476X_PROP_VALID_RSSI_THRESHOLD = 0x2004, +}; + +enum si476x_am_receiver_properties { + SI476X_PROP_AUDIO_PWR_LINE_FILTER = 0x0303, +}; + +enum si476x_fm_receiver_properties { + SI476X_PROP_AUDIO_DEEMPHASIS = 0x0302, + + SI476X_PROP_FM_RDS_INTERRUPT_SOURCE = 0x4000, + SI476X_PROP_FM_RDS_INTERRUPT_FIFO_COUNT = 0x4001, + SI476X_PROP_FM_RDS_CONFIG = 0x4002, +}; + +enum si476x_prop_audio_pwr_line_filter_bits { + SI476X_PROP_PWR_HARMONICS_MASK = 0b0000000000011111, + SI476X_PROP_PWR_GRID_MASK = 0b0000000100000000, + SI476X_PROP_PWR_ENABLE_MASK = 0b0000001000000000, + SI476X_PROP_PWR_GRID_50HZ = 0b0000000000000000, + SI476X_PROP_PWR_GRID_60HZ = 0b0000000100000000, +}; + +enum si476x_prop_fm_rds_config_bits { + SI476X_PROP_RDSEN_MASK = 0x1, + SI476X_PROP_RDSEN = 0x1, +}; + + +struct regmap *devm_regmap_init_si476x(struct si476x_core *); + +#endif /* SI476X_CORE_H */ diff --git a/include/linux/mfd/si476x-platform.h b/include/linux/mfd/si476x-platform.h new file mode 100644 index 000000000000..88bb93b7a9d5 --- /dev/null +++ b/include/linux/mfd/si476x-platform.h @@ -0,0 +1,267 @@ +/* + * include/media/si476x-platform.h -- Platform data specific definitions + * + * Copyright (C) 2013 Andrey Smirnov + * + * Author: Andrey Smirnov <andrew.smirnov@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * 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. + * + */ + +#ifndef __SI476X_PLATFORM_H__ +#define __SI476X_PLATFORM_H__ + +/* It is possible to select one of the four adresses using pins A0 + * and A1 on SI476x */ +#define SI476X_I2C_ADDR_1 0x60 +#define SI476X_I2C_ADDR_2 0x61 +#define SI476X_I2C_ADDR_3 0x62 +#define SI476X_I2C_ADDR_4 0x63 + +enum si476x_iqclk_config { + SI476X_IQCLK_NOOP = 0, + SI476X_IQCLK_TRISTATE = 1, + SI476X_IQCLK_IQ = 21, +}; +enum si476x_iqfs_config { + SI476X_IQFS_NOOP = 0, + SI476X_IQFS_TRISTATE = 1, + SI476X_IQFS_IQ = 21, +}; +enum si476x_iout_config { + SI476X_IOUT_NOOP = 0, + SI476X_IOUT_TRISTATE = 1, + SI476X_IOUT_OUTPUT = 22, +}; +enum si476x_qout_config { + SI476X_QOUT_NOOP = 0, + SI476X_QOUT_TRISTATE = 1, + SI476X_QOUT_OUTPUT = 22, +}; + +enum si476x_dclk_config { + SI476X_DCLK_NOOP = 0, + SI476X_DCLK_TRISTATE = 1, + SI476X_DCLK_DAUDIO = 10, +}; + +enum si476x_dfs_config { + SI476X_DFS_NOOP = 0, + SI476X_DFS_TRISTATE = 1, + SI476X_DFS_DAUDIO = 10, +}; + +enum si476x_dout_config { + SI476X_DOUT_NOOP = 0, + SI476X_DOUT_TRISTATE = 1, + SI476X_DOUT_I2S_OUTPUT = 12, + SI476X_DOUT_I2S_INPUT = 13, +}; + +enum si476x_xout_config { + SI476X_XOUT_NOOP = 0, + SI476X_XOUT_TRISTATE = 1, + SI476X_XOUT_I2S_INPUT = 13, + SI476X_XOUT_MODE_SELECT = 23, +}; + +enum si476x_icin_config { + SI476X_ICIN_NOOP = 0, + SI476X_ICIN_TRISTATE = 1, + SI476X_ICIN_GPO1_HIGH = 2, + SI476X_ICIN_GPO1_LOW = 3, + SI476X_ICIN_IC_LINK = 30, +}; + +enum si476x_icip_config { + SI476X_ICIP_NOOP = 0, + SI476X_ICIP_TRISTATE = 1, + SI476X_ICIP_GPO2_HIGH = 2, + SI476X_ICIP_GPO2_LOW = 3, + SI476X_ICIP_IC_LINK = 30, +}; + +enum si476x_icon_config { + SI476X_ICON_NOOP = 0, + SI476X_ICON_TRISTATE = 1, + SI476X_ICON_I2S = 10, + SI476X_ICON_IC_LINK = 30, +}; + +enum si476x_icop_config { + SI476X_ICOP_NOOP = 0, + SI476X_ICOP_TRISTATE = 1, + SI476X_ICOP_I2S = 10, + SI476X_ICOP_IC_LINK = 30, +}; + + +enum si476x_lrout_config { + SI476X_LROUT_NOOP = 0, + SI476X_LROUT_TRISTATE = 1, + SI476X_LROUT_AUDIO = 2, + SI476X_LROUT_MPX = 3, +}; + + +enum si476x_intb_config { + SI476X_INTB_NOOP = 0, + SI476X_INTB_TRISTATE = 1, + SI476X_INTB_DAUDIO = 10, + SI476X_INTB_IRQ = 40, +}; + +enum si476x_a1_config { + SI476X_A1_NOOP = 0, + SI476X_A1_TRISTATE = 1, + SI476X_A1_IRQ = 40, +}; + + +struct si476x_pinmux { + enum si476x_dclk_config dclk; + enum si476x_dfs_config dfs; + enum si476x_dout_config dout; + enum si476x_xout_config xout; + + enum si476x_iqclk_config iqclk; + enum si476x_iqfs_config iqfs; + enum si476x_iout_config iout; + enum si476x_qout_config qout; + + enum si476x_icin_config icin; + enum si476x_icip_config icip; + enum si476x_icon_config icon; + enum si476x_icop_config icop; + + enum si476x_lrout_config lrout; + + enum si476x_intb_config intb; + enum si476x_a1_config a1; +}; + +enum si476x_ibias6x { + SI476X_IBIAS6X_OTHER = 0, + SI476X_IBIAS6X_RCVR1_NON_4MHZ_CLK = 1, +}; + +enum si476x_xstart { + SI476X_XSTART_MULTIPLE_TUNER = 0x11, + SI476X_XSTART_NORMAL = 0x77, +}; + +enum si476x_freq { + SI476X_FREQ_4_MHZ = 0, + SI476X_FREQ_37P209375_MHZ = 1, + SI476X_FREQ_36P4_MHZ = 2, + SI476X_FREQ_37P8_MHZ = 3, +}; + +enum si476x_xmode { + SI476X_XMODE_CRYSTAL_RCVR1 = 1, + SI476X_XMODE_EXT_CLOCK = 2, + SI476X_XMODE_CRYSTAL_RCVR2_3 = 3, +}; + +enum si476x_xbiashc { + SI476X_XBIASHC_SINGLE_RECEIVER = 0, + SI476X_XBIASHC_MULTIPLE_RECEIVER = 1, +}; + +enum si476x_xbias { + SI476X_XBIAS_RCVR2_3 = 0, + SI476X_XBIAS_4MHZ_RCVR1 = 3, + SI476X_XBIAS_RCVR1 = 7, +}; + +enum si476x_func { + SI476X_FUNC_BOOTLOADER = 0, + SI476X_FUNC_FM_RECEIVER = 1, + SI476X_FUNC_AM_RECEIVER = 2, + SI476X_FUNC_WB_RECEIVER = 3, +}; + + +/** + * @xcload: Selects the amount of additional on-chip capacitance to + * be connected between XTAL1 and gnd and between XTAL2 and + * GND. One half of the capacitance value shown here is the + * additional load capacitance presented to the xtal. The + * minimum step size is 0.277 pF. Recommended value is 0x28 + * but it will be layout dependent. Range is 0–0x3F i.e. + * (0–16.33 pF) + * @ctsien: enable CTSINT(interrupt request when CTS condition + * arises) when set + * @intsel: when set A1 pin becomes the interrupt pin; otherwise, + * INTB is the interrupt pin + * @func: selects the boot function of the device. I.e. + * SI476X_BOOTLOADER - Boot loader + * SI476X_FM_RECEIVER - FM receiver + * SI476X_AM_RECEIVER - AM receiver + * SI476X_WB_RECEIVER - Weatherband receiver + * @freq: oscillator's crystal frequency: + * SI476X_XTAL_37P209375_MHZ - 37.209375 Mhz + * SI476X_XTAL_36P4_MHZ - 36.4 Mhz + * SI476X_XTAL_37P8_MHZ - 37.8 Mhz + */ +struct si476x_power_up_args { + enum si476x_ibias6x ibias6x; + enum si476x_xstart xstart; + u8 xcload; + bool fastboot; + enum si476x_xbiashc xbiashc; + enum si476x_xbias xbias; + enum si476x_func func; + enum si476x_freq freq; + enum si476x_xmode xmode; +}; + + +/** + * enum si476x_phase_diversity_mode - possbile phase diversity modes + * for SI4764/5/6/7 chips. + * + * @SI476X_PHDIV_DISABLED: Phase diversity feature is + * disabled. + * @SI476X_PHDIV_PRIMARY_COMBINING: Tuner works as a primary tuner + * in combination with a + * secondary one. + * @SI476X_PHDIV_PRIMARY_ANTENNA: Tuner works as a primary tuner + * using only its own antenna. + * @SI476X_PHDIV_SECONDARY_ANTENNA: Tuner works as a primary tuner + * usning seconary tuner's antenna. + * @SI476X_PHDIV_SECONDARY_COMBINING: Tuner works as a secondary + * tuner in combination with the + * primary one. + */ +enum si476x_phase_diversity_mode { + SI476X_PHDIV_DISABLED = 0, + SI476X_PHDIV_PRIMARY_COMBINING = 1, + SI476X_PHDIV_PRIMARY_ANTENNA = 2, + SI476X_PHDIV_SECONDARY_ANTENNA = 3, + SI476X_PHDIV_SECONDARY_COMBINING = 5, +}; + + +/* + * Platform dependent definition + */ +struct si476x_platform_data { + int gpio_reset; /* < 0 if not used */ + + struct si476x_power_up_args power_up_parameters; + enum si476x_phase_diversity_mode diversity_mode; + + struct si476x_pinmux pinmux; +}; + + +#endif /* __SI476X_PLATFORM_H__ */ diff --git a/include/linux/mfd/si476x-reports.h b/include/linux/mfd/si476x-reports.h new file mode 100644 index 000000000000..e0b9455a79c0 --- /dev/null +++ b/include/linux/mfd/si476x-reports.h @@ -0,0 +1,163 @@ +/* + * include/media/si476x-platform.h -- Definitions of the data formats + * returned by debugfs hooks + * + * Copyright (C) 2013 Andrey Smirnov + * + * Author: Andrey Smirnov <andrew.smirnov@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * 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. + * + */ + +#ifndef __SI476X_REPORTS_H__ +#define __SI476X_REPORTS_H__ + +/** + * struct si476x_rsq_status - structure containing received signal + * quality + * @multhint: Multipath Detect High. + * true - Indicatedes that the value is below + * FM_RSQ_MULTIPATH_HIGH_THRESHOLD + * false - Indicatedes that the value is above + * FM_RSQ_MULTIPATH_HIGH_THRESHOLD + * @multlint: Multipath Detect Low. + * true - Indicatedes that the value is below + * FM_RSQ_MULTIPATH_LOW_THRESHOLD + * false - Indicatedes that the value is above + * FM_RSQ_MULTIPATH_LOW_THRESHOLD + * @snrhint: SNR Detect High. + * true - Indicatedes that the value is below + * FM_RSQ_SNR_HIGH_THRESHOLD + * false - Indicatedes that the value is above + * FM_RSQ_SNR_HIGH_THRESHOLD + * @snrlint: SNR Detect Low. + * true - Indicatedes that the value is below + * FM_RSQ_SNR_LOW_THRESHOLD + * false - Indicatedes that the value is above + * FM_RSQ_SNR_LOW_THRESHOLD + * @rssihint: RSSI Detect High. + * true - Indicatedes that the value is below + * FM_RSQ_RSSI_HIGH_THRESHOLD + * false - Indicatedes that the value is above + * FM_RSQ_RSSI_HIGH_THRESHOLD + * @rssilint: RSSI Detect Low. + * true - Indicatedes that the value is below + * FM_RSQ_RSSI_LOW_THRESHOLD + * false - Indicatedes that the value is above + * FM_RSQ_RSSI_LOW_THRESHOLD + * @bltf: Band Limit. + * Set if seek command hits the band limit or wrapped to + * the original frequency. + * @snr_ready: SNR measurement in progress. + * @rssiready: RSSI measurement in progress. + * @afcrl: Set if FREQOFF >= MAX_TUNE_ERROR + * @valid: Set if the channel is valid + * rssi < FM_VALID_RSSI_THRESHOLD + * snr < FM_VALID_SNR_THRESHOLD + * tune_error < FM_VALID_MAX_TUNE_ERROR + * @readfreq: Current tuned frequency. + * @freqoff: Signed frequency offset. + * @rssi: Received Signal Strength Indicator(dBuV). + * @snr: RF SNR Indicator(dB). + * @lassi: + * @hassi: Low/High side Adjacent(100 kHz) Channel Strength Indicator + * @mult: Multipath indicator + * @dev: Who knows? But values may vary. + * @readantcap: Antenna tuning capacity value. + * @assi: Adjacent Channel(+/- 200kHz) Strength Indicator + * @usn: Ultrasonic Noise Inticator in -DBFS + */ +struct si476x_rsq_status_report { + __u8 multhint, multlint; + __u8 snrhint, snrlint; + __u8 rssihint, rssilint; + __u8 bltf; + __u8 snr_ready; + __u8 rssiready; + __u8 injside; + __u8 afcrl; + __u8 valid; + + __u16 readfreq; + __s8 freqoff; + __s8 rssi; + __s8 snr; + __s8 issi; + __s8 lassi, hassi; + __s8 mult; + __u8 dev; + __u16 readantcap; + __s8 assi; + __s8 usn; + + __u8 pilotdev; + __u8 rdsdev; + __u8 assidev; + __u8 strongdev; + __u16 rdspi; +} __packed; + +/** + * si476x_acf_status_report - ACF report results + * + * @blend_int: If set, indicates that stereo separation has crossed + * below the blend threshold as set by FM_ACF_BLEND_THRESHOLD + * @hblend_int: If set, indicates that HiBlend cutoff frequency is + * lower than threshold as set by FM_ACF_HBLEND_THRESHOLD + * @hicut_int: If set, indicates that HiCut cutoff frequency is lower + * than the threshold set by ACF_ + + */ +struct si476x_acf_status_report { + __u8 blend_int; + __u8 hblend_int; + __u8 hicut_int; + __u8 chbw_int; + __u8 softmute_int; + __u8 smute; + __u8 smattn; + __u8 chbw; + __u8 hicut; + __u8 hiblend; + __u8 pilot; + __u8 stblend; +} __packed; + +enum si476x_fmagc { + SI476X_FMAGC_10K_OHM = 0, + SI476X_FMAGC_800_OHM = 1, + SI476X_FMAGC_400_OHM = 2, + SI476X_FMAGC_200_OHM = 4, + SI476X_FMAGC_100_OHM = 8, + SI476X_FMAGC_50_OHM = 16, + SI476X_FMAGC_25_OHM = 32, + SI476X_FMAGC_12P5_OHM = 64, + SI476X_FMAGC_6P25_OHM = 128, +}; + +struct si476x_agc_status_report { + __u8 mxhi; + __u8 mxlo; + __u8 lnahi; + __u8 lnalo; + __u8 fmagc1; + __u8 fmagc2; + __u8 pgagain; + __u8 fmwblang; +} __packed; + +struct si476x_rds_blockcount_report { + __u16 expected; + __u16 received; + __u16 uncorrectable; +} __packed; + +#endif /* __SI476X_REPORTS_H__ */ |