+++ /dev/null
-/*
- * drivers/mfd/si476x-cmd.c -- Subroutines implementing command
- * protocol of si476x series of chips
- *
- * 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.
- *
- */
-
-#include <linux/module.h>
-#include <linux/completion.h>
-#include <linux/delay.h>
-#include <linux/atomic.h>
-#include <linux/i2c.h>
-#include <linux/device.h>
-#include <linux/gpio.h>
-#include <linux/videodev2.h>
-
-#include <media/si476x.h>
-#include <linux/mfd/si476x-core.h>
-
-#define msb(x) ((u8)((u16) x >> 8))
-#define lsb(x) ((u8)((u16) x & 0x00FF))
-
-
-
-#define CMD_POWER_UP 0x01
-#define CMD_POWER_UP_A10_NRESP 1
-#define CMD_POWER_UP_A10_NARGS 5
-
-#define CMD_POWER_UP_A20_NRESP 1
-#define CMD_POWER_UP_A20_NARGS 5
-
-#define POWER_UP_DELAY_MS 110
-
-#define CMD_POWER_DOWN 0x11
-#define CMD_POWER_DOWN_A10_NRESP 1
-
-#define CMD_POWER_DOWN_A20_NRESP 1
-#define CMD_POWER_DOWN_A20_NARGS 1
-
-#define CMD_FUNC_INFO 0x12
-#define CMD_FUNC_INFO_NRESP 7
-
-#define CMD_SET_PROPERTY 0x13
-#define CMD_SET_PROPERTY_NARGS 5
-#define CMD_SET_PROPERTY_NRESP 1
-
-#define CMD_GET_PROPERTY 0x14
-#define CMD_GET_PROPERTY_NARGS 3
-#define CMD_GET_PROPERTY_NRESP 4
-
-#define CMD_AGC_STATUS 0x17
-#define CMD_AGC_STATUS_NRESP_A10 2
-#define CMD_AGC_STATUS_NRESP_A20 6
-
-#define PIN_CFG_BYTE(x) (0x7F & (x))
-#define CMD_DIG_AUDIO_PIN_CFG 0x18
-#define CMD_DIG_AUDIO_PIN_CFG_NARGS 4
-#define CMD_DIG_AUDIO_PIN_CFG_NRESP 5
-
-#define CMD_ZIF_PIN_CFG 0x19
-#define CMD_ZIF_PIN_CFG_NARGS 4
-#define CMD_ZIF_PIN_CFG_NRESP 5
-
-#define CMD_IC_LINK_GPO_CTL_PIN_CFG 0x1A
-#define CMD_IC_LINK_GPO_CTL_PIN_CFG_NARGS 4
-#define CMD_IC_LINK_GPO_CTL_PIN_CFG_NRESP 5
-
-#define CMD_ANA_AUDIO_PIN_CFG 0x1B
-#define CMD_ANA_AUDIO_PIN_CFG_NARGS 1
-#define CMD_ANA_AUDIO_PIN_CFG_NRESP 2
-
-#define CMD_INTB_PIN_CFG 0x1C
-#define CMD_INTB_PIN_CFG_NARGS 2
-#define CMD_INTB_PIN_CFG_A10_NRESP 6
-#define CMD_INTB_PIN_CFG_A20_NRESP 3
-
-#define CMD_FM_TUNE_FREQ 0x30
-#define CMD_FM_TUNE_FREQ_A10_NARGS 5
-#define CMD_FM_TUNE_FREQ_A20_NARGS 3
-#define CMD_FM_TUNE_FREQ_NRESP 1
-
-#define CMD_FM_RSQ_STATUS 0x32
-
-#define CMD_FM_RSQ_STATUS_A10_NARGS 1
-#define CMD_FM_RSQ_STATUS_A10_NRESP 17
-#define CMD_FM_RSQ_STATUS_A30_NARGS 1
-#define CMD_FM_RSQ_STATUS_A30_NRESP 23
-
-
-#define CMD_FM_SEEK_START 0x31
-#define CMD_FM_SEEK_START_NARGS 1
-#define CMD_FM_SEEK_START_NRESP 1
-
-#define CMD_FM_RDS_STATUS 0x36
-#define CMD_FM_RDS_STATUS_NARGS 1
-#define CMD_FM_RDS_STATUS_NRESP 16
-
-#define CMD_FM_RDS_BLOCKCOUNT 0x37
-#define CMD_FM_RDS_BLOCKCOUNT_NARGS 1
-#define CMD_FM_RDS_BLOCKCOUNT_NRESP 8
-
-#define CMD_FM_PHASE_DIVERSITY 0x38
-#define CMD_FM_PHASE_DIVERSITY_NARGS 1
-#define CMD_FM_PHASE_DIVERSITY_NRESP 1
-
-#define CMD_FM_PHASE_DIV_STATUS 0x39
-#define CMD_FM_PHASE_DIV_STATUS_NRESP 2
-
-#define CMD_AM_TUNE_FREQ 0x40
-#define CMD_AM_TUNE_FREQ_NARGS 3
-#define CMD_AM_TUNE_FREQ_NRESP 1
-
-#define CMD_AM_RSQ_STATUS 0x42
-#define CMD_AM_RSQ_STATUS_NARGS 1
-#define CMD_AM_RSQ_STATUS_NRESP 13
-
-#define CMD_AM_SEEK_START 0x41
-#define CMD_AM_SEEK_START_NARGS 1
-#define CMD_AM_SEEK_START_NRESP 1
-
-
-#define CMD_AM_ACF_STATUS 0x45
-#define CMD_AM_ACF_STATUS_NRESP 6
-#define CMD_AM_ACF_STATUS_NARGS 1
-
-#define CMD_FM_ACF_STATUS 0x35
-#define CMD_FM_ACF_STATUS_NRESP 8
-#define CMD_FM_ACF_STATUS_NARGS 1
-
-#define CMD_MAX_ARGS_COUNT (10)
-
-
-enum si476x_acf_status_report_bits {
- SI476X_ACF_BLEND_INT = (1 << 4),
- SI476X_ACF_HIBLEND_INT = (1 << 3),
- SI476X_ACF_HICUT_INT = (1 << 2),
- SI476X_ACF_CHBW_INT = (1 << 1),
- SI476X_ACF_SOFTMUTE_INT = (1 << 0),
-
- SI476X_ACF_SMUTE = (1 << 0),
- SI476X_ACF_SMATTN = 0b11111,
- SI476X_ACF_PILOT = (1 << 7),
- SI476X_ACF_STBLEND = ~SI476X_ACF_PILOT,
-};
-
-enum si476x_agc_status_report_bits {
- SI476X_AGC_MXHI = (1 << 5),
- SI476X_AGC_MXLO = (1 << 4),
- SI476X_AGC_LNAHI = (1 << 3),
- SI476X_AGC_LNALO = (1 << 2),
-};
-
-enum si476x_errors {
- SI476X_ERR_BAD_COMMAND = 0x10,
- SI476X_ERR_BAD_ARG1 = 0x11,
- SI476X_ERR_BAD_ARG2 = 0x12,
- SI476X_ERR_BAD_ARG3 = 0x13,
- SI476X_ERR_BAD_ARG4 = 0x14,
- SI476X_ERR_BUSY = 0x18,
- SI476X_ERR_BAD_INTERNAL_MEMORY = 0x20,
- SI476X_ERR_BAD_PATCH = 0x30,
- SI476X_ERR_BAD_BOOT_MODE = 0x31,
- SI476X_ERR_BAD_PROPERTY = 0x40,
-};
-
-static int si476x_core_parse_and_nag_about_error(struct si476x_core *core)
-{
- int err;
- char *cause;
- u8 buffer[2];
-
- if (core->revision != SI476X_REVISION_A10) {
- err = si476x_core_i2c_xfer(core, SI476X_I2C_RECV,
- buffer, sizeof(buffer));
- if (err == sizeof(buffer)) {
- switch (buffer[1]) {
- case SI476X_ERR_BAD_COMMAND:
- cause = "Bad command";
- err = -EINVAL;
- break;
- case SI476X_ERR_BAD_ARG1:
- cause = "Bad argument #1";
- err = -EINVAL;
- break;
- case SI476X_ERR_BAD_ARG2:
- cause = "Bad argument #2";
- err = -EINVAL;
- break;
- case SI476X_ERR_BAD_ARG3:
- cause = "Bad argument #3";
- err = -EINVAL;
- break;
- case SI476X_ERR_BAD_ARG4:
- cause = "Bad argument #4";
- err = -EINVAL;
- break;
- case SI476X_ERR_BUSY:
- cause = "Chip is busy";
- err = -EBUSY;
- break;
- case SI476X_ERR_BAD_INTERNAL_MEMORY:
- cause = "Bad internal memory";
- err = -EIO;
- break;
- case SI476X_ERR_BAD_PATCH:
- cause = "Bad patch";
- err = -EINVAL;
- break;
- case SI476X_ERR_BAD_BOOT_MODE:
- cause = "Bad boot mode";
- err = -EINVAL;
- break;
- case SI476X_ERR_BAD_PROPERTY:
- cause = "Bad property";
- err = -EINVAL;
- break;
- default:
- cause = "Unknown";
- err = -EIO;
- }
-
- dev_err(&core->client->dev,
- "[Chip error status]: %s\n", cause);
- } else {
- dev_err(&core->client->dev,
- "Failed to fetch error code\n");
- err = (err >= 0) ? -EIO : err;
- }
- } else {
- err = -EIO;
- }
-
- return err;
-}
-
-/**
- * si476x_core_send_command() - sends a command to si476x and waits its
- * response
- * @core: si476x_device structure for the device we are
- * communicating with
- * @command: command id
- * @args: command arguments we are sending
- * @argn: actual size of @args
- * @response: buffer to place the expected response from the device
- * @respn: actual size of @response
- * @usecs: amount of time to wait before reading the response (in
- * usecs)
- *
- * Function returns 0 on succsess and negative error code on
- * failure
- */
-static int si476x_core_send_command(struct si476x_core *core,
- const u8 command,
- const u8 args[],
- const int argn,
- u8 resp[],
- const int respn,
- const int usecs)
-{
- struct i2c_client *client = core->client;
- int err;
- u8 data[CMD_MAX_ARGS_COUNT + 1];
-
- if (argn > CMD_MAX_ARGS_COUNT) {
- err = -ENOMEM;
- goto exit;
- }
-
- if (!client->adapter) {
- err = -ENODEV;
- goto exit;
- }
-
- /* First send the command and its arguments */
- data[0] = command;
- memcpy(&data[1], args, argn);
- dev_dbg(&client->dev, "Command:\n %*ph\n", argn + 1, data);
-
- err = si476x_core_i2c_xfer(core, SI476X_I2C_SEND,
- (char *) data, argn + 1);
- if (err != argn + 1) {
- dev_err(&core->client->dev,
- "Error while sending command 0x%02x\n",
- command);
- err = (err >= 0) ? -EIO : err;
- goto exit;
- }
- /* Set CTS to zero only after the command is send to avoid
- * possible racing conditions when working in polling mode */
- atomic_set(&core->cts, 0);
-
- /* if (unlikely(command == CMD_POWER_DOWN) */
- if (!wait_event_timeout(core->command,
- atomic_read(&core->cts),
- usecs_to_jiffies(usecs) + 1))
- dev_warn(&core->client->dev,
- "(%s) [CMD 0x%02x] Answer timeout.\n",
- __func__, command);
-
- /*
- When working in polling mode, for some reason the tuner will
- report CTS bit as being set in the first status byte read,
- but all the consequtive ones will return zeros until the
- tuner is actually completed the POWER_UP command. To
- workaround that we wait for second CTS to be reported
- */
- if (unlikely(!core->client->irq && command == CMD_POWER_UP)) {
- if (!wait_event_timeout(core->command,
- atomic_read(&core->cts),
- usecs_to_jiffies(usecs) + 1))
- dev_warn(&core->client->dev,
- "(%s) Power up took too much time.\n",
- __func__);
- }
-
- /* Then get the response */
- err = si476x_core_i2c_xfer(core, SI476X_I2C_RECV, resp, respn);
- if (err != respn) {
- dev_err(&core->client->dev,
- "Error while reading response for command 0x%02x\n",
- command);
- err = (err >= 0) ? -EIO : err;
- goto exit;
- }
- dev_dbg(&client->dev, "Response:\n %*ph\n", respn, resp);
-
- err = 0;
-
- if (resp[0] & SI476X_ERR) {
- dev_err(&core->client->dev,
- "[CMD 0x%02x] Chip set error flag\n", command);
- err = si476x_core_parse_and_nag_about_error(core);
- goto exit;
- }
-
- if (!(resp[0] & SI476X_CTS))
- err = -EBUSY;
-exit:
- return err;
-}
-
-static int si476x_cmd_clear_stc(struct si476x_core *core)
-{
- int err;
- struct si476x_rsq_status_args args = {
- .primary = false,
- .rsqack = false,
- .attune = false,
- .cancel = false,
- .stcack = true,
- };
-
- switch (core->power_up_parameters.func) {
- case SI476X_FUNC_FM_RECEIVER:
- err = si476x_core_cmd_fm_rsq_status(core, &args, NULL);
- break;
- case SI476X_FUNC_AM_RECEIVER:
- err = si476x_core_cmd_am_rsq_status(core, &args, NULL);
- break;
- default:
- err = -EINVAL;
- }
-
- return err;
-}
-
-static int si476x_cmd_tune_seek_freq(struct si476x_core *core,
- uint8_t cmd,
- const uint8_t args[], size_t argn,
- uint8_t *resp, size_t respn)
-{
- int err;
-
-
- atomic_set(&core->stc, 0);
- err = si476x_core_send_command(core, cmd, args, argn, resp, respn,
- SI476X_TIMEOUT_TUNE);
- if (!err) {
- wait_event_killable(core->tuning,
- atomic_read(&core->stc));
- si476x_cmd_clear_stc(core);
- }
-
- return err;
-}
-
-/**
- * si476x_cmd_func_info() - send 'FUNC_INFO' command to the device
- * @core: device to send the command to
- * @info: struct si476x_func_info to fill all the information
- * returned by the command
- *
- * The command requests the firmware and patch version for currently
- * loaded firmware (dependent on the function of the device FM/AM/WB)
- *
- * Function returns 0 on succsess and negative error code on
- * failure
- */
-int si476x_core_cmd_func_info(struct si476x_core *core,
- struct si476x_func_info *info)
-{
- int err;
- u8 resp[CMD_FUNC_INFO_NRESP];
-
- err = si476x_core_send_command(core, CMD_FUNC_INFO,
- NULL, 0,
- resp, ARRAY_SIZE(resp),
- SI476X_DEFAULT_TIMEOUT);
-
- info->firmware.major = resp[1];
- info->firmware.minor[0] = resp[2];
- info->firmware.minor[1] = resp[3];
-
- info->patch_id = ((u16) resp[4] << 8) | resp[5];
- info->func = resp[6];
-
- return err;
-}
-EXPORT_SYMBOL_GPL(si476x_core_cmd_func_info);
-
-/**
- * si476x_cmd_set_property() - send 'SET_PROPERTY' command to the device
- * @core: device to send the command to
- * @property: property address
- * @value: property value
- *
- * Function returns 0 on succsess and negative error code on
- * failure
- */
-int si476x_core_cmd_set_property(struct si476x_core *core,
- u16 property, u16 value)
-{
- u8 resp[CMD_SET_PROPERTY_NRESP];
- const u8 args[CMD_SET_PROPERTY_NARGS] = {
- 0x00,
- msb(property),
- lsb(property),
- msb(value),
- lsb(value),
- };
-
- return si476x_core_send_command(core, CMD_SET_PROPERTY,
- args, ARRAY_SIZE(args),
- resp, ARRAY_SIZE(resp),
- SI476X_DEFAULT_TIMEOUT);
-}
-EXPORT_SYMBOL_GPL(si476x_core_cmd_set_property);
-
-/**
- * si476x_cmd_get_property() - send 'GET_PROPERTY' command to the device
- * @core: device to send the command to
- * @property: property address
- *
- * Function return the value of property as u16 on success or a
- * negative error on failure
- */
-int si476x_core_cmd_get_property(struct si476x_core *core, u16 property)
-{
- int err;
- u8 resp[CMD_GET_PROPERTY_NRESP];
- const u8 args[CMD_GET_PROPERTY_NARGS] = {
- 0x00,
- msb(property),
- lsb(property),
- };
-
- err = si476x_core_send_command(core, CMD_GET_PROPERTY,
- args, ARRAY_SIZE(args),
- resp, ARRAY_SIZE(resp),
- SI476X_DEFAULT_TIMEOUT);
- if (err < 0)
- return err;
- else
- return be16_to_cpup((__be16 *)(resp + 2));
-}
-EXPORT_SYMBOL_GPL(si476x_core_cmd_get_property);
-
-/**
- * si476x_cmd_dig_audio_pin_cfg() - send 'DIG_AUDIO_PIN_CFG' command to
- * the device
- * @core: device to send the command to
- * @dclk: DCLK pin function configuration:
- * #SI476X_DCLK_NOOP - do not modify the behaviour
- * #SI476X_DCLK_TRISTATE - put the pin in tristate condition,
- * enable 1MOhm pulldown
- * #SI476X_DCLK_DAUDIO - set the pin to be a part of digital
- * audio interface
- * @dfs: DFS pin function configuration:
- * #SI476X_DFS_NOOP - do not modify the behaviour
- * #SI476X_DFS_TRISTATE - put the pin in tristate condition,
- * enable 1MOhm pulldown
- * SI476X_DFS_DAUDIO - set the pin to be a part of digital
- * audio interface
- * @dout - DOUT pin function configuration:
- * SI476X_DOUT_NOOP - do not modify the behaviour
- * SI476X_DOUT_TRISTATE - put the pin in tristate condition,
- * enable 1MOhm pulldown
- * SI476X_DOUT_I2S_OUTPUT - set this pin to be digital out on I2S
- * port 1
- * SI476X_DOUT_I2S_INPUT - set this pin to be digital in on I2S
- * port 1
- * @xout - XOUT pin function configuration:
- * SI476X_XOUT_NOOP - do not modify the behaviour
- * SI476X_XOUT_TRISTATE - put the pin in tristate condition,
- * enable 1MOhm pulldown
- * SI476X_XOUT_I2S_INPUT - set this pin to be digital in on I2S
- * port 1
- * SI476X_XOUT_MODE_SELECT - set this pin to be the input that
- * selects the mode of the I2S audio
- * combiner (analog or HD)
- * [SI4761/63/65/67 Only]
- *
- * Function returns 0 on success and negative error code on failure
- */
-int si476x_core_cmd_dig_audio_pin_cfg(struct si476x_core *core,
- enum si476x_dclk_config dclk,
- enum si476x_dfs_config dfs,
- enum si476x_dout_config dout,
- enum si476x_xout_config xout)
-{
- u8 resp[CMD_DIG_AUDIO_PIN_CFG_NRESP];
- const u8 args[CMD_DIG_AUDIO_PIN_CFG_NARGS] = {
- PIN_CFG_BYTE(dclk),
- PIN_CFG_BYTE(dfs),
- PIN_CFG_BYTE(dout),
- PIN_CFG_BYTE(xout),
- };
-
- return si476x_core_send_command(core, CMD_DIG_AUDIO_PIN_CFG,
- args, ARRAY_SIZE(args),
- resp, ARRAY_SIZE(resp),
- SI476X_DEFAULT_TIMEOUT);
-}
-EXPORT_SYMBOL_GPL(si476x_core_cmd_dig_audio_pin_cfg);
-
-/**
- * si476x_cmd_zif_pin_cfg - send 'ZIF_PIN_CFG_COMMAND'
- * @core - device to send the command to
- * @iqclk - IQCL pin function configuration:
- * SI476X_IQCLK_NOOP - do not modify the behaviour
- * SI476X_IQCLK_TRISTATE - put the pin in tristate condition,
- * enable 1MOhm pulldown
- * SI476X_IQCLK_IQ - set pin to be a part of I/Q interace
- * in master mode
- * @iqfs - IQFS pin function configuration:
- * SI476X_IQFS_NOOP - do not modify the behaviour
- * SI476X_IQFS_TRISTATE - put the pin in tristate condition,
- * enable 1MOhm pulldown
- * SI476X_IQFS_IQ - set pin to be a part of I/Q interace
- * in master mode
- * @iout - IOUT pin function configuration:
- * SI476X_IOUT_NOOP - do not modify the behaviour
- * SI476X_IOUT_TRISTATE - put the pin in tristate condition,
- * enable 1MOhm pulldown
- * SI476X_IOUT_OUTPUT - set pin to be I out
- * @qout - QOUT pin function configuration:
- * SI476X_QOUT_NOOP - do not modify the behaviour
- * SI476X_QOUT_TRISTATE - put the pin in tristate condition,
- * enable 1MOhm pulldown
- * SI476X_QOUT_OUTPUT - set pin to be Q out
- *
- * Function returns 0 on success and negative error code on failure
- */
-int si476x_core_cmd_zif_pin_cfg(struct si476x_core *core,
- enum si476x_iqclk_config iqclk,
- enum si476x_iqfs_config iqfs,
- enum si476x_iout_config iout,
- enum si476x_qout_config qout)
-{
- u8 resp[CMD_ZIF_PIN_CFG_NRESP];
- const u8 args[CMD_ZIF_PIN_CFG_NARGS] = {
- PIN_CFG_BYTE(iqclk),
- PIN_CFG_BYTE(iqfs),
- PIN_CFG_BYTE(iout),
- PIN_CFG_BYTE(qout),
- };
-
- return si476x_core_send_command(core, CMD_ZIF_PIN_CFG,
- args, ARRAY_SIZE(args),
- resp, ARRAY_SIZE(resp),
- SI476X_DEFAULT_TIMEOUT);
-}
-EXPORT_SYMBOL_GPL(si476x_core_cmd_zif_pin_cfg);
-
-/**
- * si476x_cmd_ic_link_gpo_ctl_pin_cfg - send
- * 'IC_LINK_GPIO_CTL_PIN_CFG' comand to the device
- * @core - device to send the command to
- * @icin - ICIN pin function configuration:
- * SI476X_ICIN_NOOP - do not modify the behaviour
- * SI476X_ICIN_TRISTATE - put the pin in tristate condition,
- * enable 1MOhm pulldown
- * SI476X_ICIN_GPO1_HIGH - set pin to be an output, drive it high
- * SI476X_ICIN_GPO1_LOW - set pin to be an output, drive it low
- * SI476X_ICIN_IC_LINK - set the pin to be a part of Inter-Chip link
- * @icip - ICIP pin function configuration:
- * SI476X_ICIP_NOOP - do not modify the behaviour
- * SI476X_ICIP_TRISTATE - put the pin in tristate condition,
- * enable 1MOhm pulldown
- * SI476X_ICIP_GPO1_HIGH - set pin to be an output, drive it high
- * SI476X_ICIP_GPO1_LOW - set pin to be an output, drive it low
- * SI476X_ICIP_IC_LINK - set the pin to be a part of Inter-Chip link
- * @icon - ICON pin function configuration:
- * SI476X_ICON_NOOP - do not modify the behaviour
- * SI476X_ICON_TRISTATE - put the pin in tristate condition,
- * enable 1MOhm pulldown
- * SI476X_ICON_I2S - set the pin to be a part of audio
- * interface in slave mode (DCLK)
- * SI476X_ICON_IC_LINK - set the pin to be a part of Inter-Chip link
- * @icop - ICOP pin function configuration:
- * SI476X_ICOP_NOOP - do not modify the behaviour
- * SI476X_ICOP_TRISTATE - put the pin in tristate condition,
- * enable 1MOhm pulldown
- * SI476X_ICOP_I2S - set the pin to be a part of audio
- * interface in slave mode (DOUT)
- * [Si4761/63/65/67 Only]
- * SI476X_ICOP_IC_LINK - set the pin to be a part of Inter-Chip link
- *
- * Function returns 0 on success and negative error code on failure
- */
-int si476x_core_cmd_ic_link_gpo_ctl_pin_cfg(struct si476x_core *core,
- enum si476x_icin_config icin,
- enum si476x_icip_config icip,
- enum si476x_icon_config icon,
- enum si476x_icop_config icop)
-{
- u8 resp[CMD_IC_LINK_GPO_CTL_PIN_CFG_NRESP];
- const u8 args[CMD_IC_LINK_GPO_CTL_PIN_CFG_NARGS] = {
- PIN_CFG_BYTE(icin),
- PIN_CFG_BYTE(icip),
- PIN_CFG_BYTE(icon),
- PIN_CFG_BYTE(icop),
- };
-
- return si476x_core_send_command(core, CMD_IC_LINK_GPO_CTL_PIN_CFG,
- args, ARRAY_SIZE(args),
- resp, ARRAY_SIZE(resp),
- SI476X_DEFAULT_TIMEOUT);
-}
-EXPORT_SYMBOL_GPL(si476x_core_cmd_ic_link_gpo_ctl_pin_cfg);
-
-/**
- * si476x_cmd_ana_audio_pin_cfg - send 'ANA_AUDIO_PIN_CFG' to the
- * device
- * @core - device to send the command to
- * @lrout - LROUT pin function configuration:
- * SI476X_LROUT_NOOP - do not modify the behaviour
- * SI476X_LROUT_TRISTATE - put the pin in tristate condition,
- * enable 1MOhm pulldown
- * SI476X_LROUT_AUDIO - set pin to be audio output
- * SI476X_LROUT_MPX - set pin to be MPX output
- *
- * Function returns 0 on success and negative error code on failure
- */
-int si476x_core_cmd_ana_audio_pin_cfg(struct si476x_core *core,
- enum si476x_lrout_config lrout)
-{
- u8 resp[CMD_ANA_AUDIO_PIN_CFG_NRESP];
- const u8 args[CMD_ANA_AUDIO_PIN_CFG_NARGS] = {
- PIN_CFG_BYTE(lrout),
- };
-
- return si476x_core_send_command(core, CMD_ANA_AUDIO_PIN_CFG,
- args, ARRAY_SIZE(args),
- resp, ARRAY_SIZE(resp),
- SI476X_DEFAULT_TIMEOUT);
-}
-EXPORT_SYMBOL_GPL(si476x_core_cmd_ana_audio_pin_cfg);
-
-
-/**
- * si476x_cmd_intb_pin_cfg - send 'INTB_PIN_CFG' command to the device
- * @core - device to send the command to
- * @intb - INTB pin function configuration:
- * SI476X_INTB_NOOP - do not modify the behaviour
- * SI476X_INTB_TRISTATE - put the pin in tristate condition,
- * enable 1MOhm pulldown
- * SI476X_INTB_DAUDIO - set pin to be a part of digital
- * audio interface in slave mode
- * SI476X_INTB_IRQ - set pin to be an interrupt request line
- * @a1 - A1 pin function configuration:
- * SI476X_A1_NOOP - do not modify the behaviour
- * SI476X_A1_TRISTATE - put the pin in tristate condition,
- * enable 1MOhm pulldown
- * SI476X_A1_IRQ - set pin to be an interrupt request line
- *
- * Function returns 0 on success and negative error code on failure
- */
-static int si476x_core_cmd_intb_pin_cfg_a10(struct si476x_core *core,
- enum si476x_intb_config intb,
- enum si476x_a1_config a1)
-{
- u8 resp[CMD_INTB_PIN_CFG_A10_NRESP];
- const u8 args[CMD_INTB_PIN_CFG_NARGS] = {
- PIN_CFG_BYTE(intb),
- PIN_CFG_BYTE(a1),
- };
-
- return si476x_core_send_command(core, CMD_INTB_PIN_CFG,
- args, ARRAY_SIZE(args),
- resp, ARRAY_SIZE(resp),
- SI476X_DEFAULT_TIMEOUT);
-}
-
-static int si476x_core_cmd_intb_pin_cfg_a20(struct si476x_core *core,
- enum si476x_intb_config intb,
- enum si476x_a1_config a1)
-{
- u8 resp[CMD_INTB_PIN_CFG_A20_NRESP];
- const u8 args[CMD_INTB_PIN_CFG_NARGS] = {
- PIN_CFG_BYTE(intb),
- PIN_CFG_BYTE(a1),
- };
-
- return si476x_core_send_command(core, CMD_INTB_PIN_CFG,
- args, ARRAY_SIZE(args),
- resp, ARRAY_SIZE(resp),
- SI476X_DEFAULT_TIMEOUT);
-}
-
-
-
-/**
- * si476x_cmd_am_rsq_status - send 'AM_RSQ_STATUS' command to the
- * device
- * @core - device to send the command to
- * @rsqack - if set command clears RSQINT, SNRINT, SNRLINT, RSSIHINT,
- * RSSSILINT, BLENDINT, MULTHINT and MULTLINT
- * @attune - when set the values in the status report are the values
- * that were calculated at tune
- * @cancel - abort ongoing seek/tune opertation
- * @stcack - clear the STCINT bin in status register
- * @report - all signal quality information retured by the command
- * (if NULL then the output of the command is ignored)
- *
- * Function returns 0 on success and negative error code on failure
- */
-int si476x_core_cmd_am_rsq_status(struct si476x_core *core,
- struct si476x_rsq_status_args *rsqargs,
- struct si476x_rsq_status_report *report)
-{
- int err;
- u8 resp[CMD_AM_RSQ_STATUS_NRESP];
- const u8 args[CMD_AM_RSQ_STATUS_NARGS] = {
- rsqargs->rsqack << 3 | rsqargs->attune << 2 |
- rsqargs->cancel << 1 | rsqargs->stcack,
- };
-
- err = si476x_core_send_command(core, CMD_AM_RSQ_STATUS,
- args, ARRAY_SIZE(args),
- resp, ARRAY_SIZE(resp),
- SI476X_DEFAULT_TIMEOUT);
- /*
- * Besides getting received signal quality information this
- * command can be used to just acknowledge different interrupt
- * flags in those cases it is useless to copy and parse
- * received data so user can pass NULL, and thus avoid
- * unnecessary copying.
- */
- if (!report)
- return err;
-
- report->snrhint = 0b00001000 & resp[1];
- report->snrlint = 0b00000100 & resp[1];
- report->rssihint = 0b00000010 & resp[1];
- report->rssilint = 0b00000001 & resp[1];
-
- report->bltf = 0b10000000 & resp[2];
- report->snr_ready = 0b00100000 & resp[2];
- report->rssiready = 0b00001000 & resp[2];
- report->afcrl = 0b00000010 & resp[2];
- report->valid = 0b00000001 & resp[2];
-
- report->readfreq = be16_to_cpup((__be16 *)(resp + 3));
- report->freqoff = resp[5];
- report->rssi = resp[6];
- report->snr = resp[7];
- report->lassi = resp[9];
- report->hassi = resp[10];
- report->mult = resp[11];
- report->dev = resp[12];
-
- return err;
-}
-EXPORT_SYMBOL_GPL(si476x_core_cmd_am_rsq_status);
-
-int si476x_core_cmd_fm_acf_status(struct si476x_core *core,
- struct si476x_acf_status_report *report)
-{
- int err;
- u8 resp[CMD_FM_ACF_STATUS_NRESP];
- const u8 args[CMD_FM_ACF_STATUS_NARGS] = {
- 0x0,
- };
-
- if (!report)
- return -EINVAL;
-
- err = si476x_core_send_command(core, CMD_FM_ACF_STATUS,
- args, ARRAY_SIZE(args),
- resp, ARRAY_SIZE(resp),
- SI476X_DEFAULT_TIMEOUT);
- if (err < 0)
- return err;
-
- report->blend_int = resp[1] & SI476X_ACF_BLEND_INT;
- report->hblend_int = resp[1] & SI476X_ACF_HIBLEND_INT;
- report->hicut_int = resp[1] & SI476X_ACF_HICUT_INT;
- report->chbw_int = resp[1] & SI476X_ACF_CHBW_INT;
- report->softmute_int = resp[1] & SI476X_ACF_SOFTMUTE_INT;
- report->smute = resp[2] & SI476X_ACF_SMUTE;
- report->smattn = resp[3] & SI476X_ACF_SMATTN;
- report->chbw = resp[4];
- report->hicut = resp[5];
- report->hiblend = resp[6];
- report->pilot = resp[7] & SI476X_ACF_PILOT;
- report->stblend = resp[7] & SI476X_ACF_STBLEND;
-
- return err;
-}
-EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_acf_status);
-
-int si476x_core_cmd_am_acf_status(struct si476x_core *core,
- struct si476x_acf_status_report *report)
-{
- int err;
- u8 resp[CMD_AM_ACF_STATUS_NRESP];
- const u8 args[CMD_AM_ACF_STATUS_NARGS] = {
- 0x0,
- };
-
- if (!report)
- return -EINVAL;
-
- err = si476x_core_send_command(core, CMD_AM_ACF_STATUS,
- args, ARRAY_SIZE(args),
- resp, ARRAY_SIZE(resp),
- SI476X_DEFAULT_TIMEOUT);
- if (err < 0)
- return err;
-
- report->blend_int = resp[1] & SI476X_ACF_BLEND_INT;
- report->hblend_int = resp[1] & SI476X_ACF_HIBLEND_INT;
- report->hicut_int = resp[1] & SI476X_ACF_HICUT_INT;
- report->chbw_int = resp[1] & SI476X_ACF_CHBW_INT;
- report->softmute_int = resp[1] & SI476X_ACF_SOFTMUTE_INT;
- report->smute = resp[2] & SI476X_ACF_SMUTE;
- report->smattn = resp[3] & SI476X_ACF_SMATTN;
- report->chbw = resp[4];
- report->hicut = resp[5];
-
- return err;
-}
-EXPORT_SYMBOL_GPL(si476x_core_cmd_am_acf_status);
-
-
-/**
- * si476x_cmd_fm_seek_start - send 'FM_SEEK_START' command to the
- * device
- * @core - device to send the command to
- * @seekup - if set the direction of the search is 'up'
- * @wrap - if set seek wraps when hitting band limit
- *
- * This function begins search for a valid station. The station is
- * considered valid when 'FM_VALID_SNR_THRESHOLD' and
- * 'FM_VALID_RSSI_THRESHOLD' and 'FM_VALID_MAX_TUNE_ERROR' criteria
- * are met.
-} *
- * Function returns 0 on success and negative error code on failure
- */
-int si476x_core_cmd_fm_seek_start(struct si476x_core *core,
- bool seekup, bool wrap)
-{
- u8 resp[CMD_FM_SEEK_START_NRESP];
- const u8 args[CMD_FM_SEEK_START_NARGS] = {
- seekup << 3 | wrap << 2,
- };
-
- return si476x_cmd_tune_seek_freq(core, CMD_FM_SEEK_START,
- args, sizeof(args),
- resp, sizeof(resp));
-}
-EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_seek_start);
-
-/**
- * si476x_cmd_fm_rds_status - send 'FM_RDS_STATUS' command to the
- * device
- * @core - device to send the command to
- * @status_only - if set the data is not removed from RDSFIFO,
- * RDSFIFOUSED is not decremented and data in all the
- * rest RDS data contains the last valid info received
- * @mtfifo if set the command clears RDS receive FIFO
- * @intack if set the command clards the RDSINT bit.
- *
- * Function returns 0 on success and negative error code on failure
- */
-int si476x_core_cmd_fm_rds_status(struct si476x_core *core,
- bool status_only,
- bool mtfifo,
- bool intack,
- struct si476x_rds_status_report *report)
-{
- int err;
- u8 resp[CMD_FM_RDS_STATUS_NRESP];
- const u8 args[CMD_FM_RDS_STATUS_NARGS] = {
- status_only << 2 | mtfifo << 1 | intack,
- };
-
- err = si476x_core_send_command(core, CMD_FM_RDS_STATUS,
- args, ARRAY_SIZE(args),
- resp, ARRAY_SIZE(resp),
- SI476X_DEFAULT_TIMEOUT);
- /*
- * Besides getting RDS status information this command can be
- * used to just acknowledge different interrupt flags in those
- * cases it is useless to copy and parse received data so user
- * can pass NULL, and thus avoid unnecessary copying.
- */
- if (err < 0 || report == NULL)
- return err;
-
- report->rdstpptyint = 0b00010000 & resp[1];
- report->rdspiint = 0b00001000 & resp[1];
- report->rdssyncint = 0b00000010 & resp[1];
- report->rdsfifoint = 0b00000001 & resp[1];
-
- report->tpptyvalid = 0b00010000 & resp[2];
- report->pivalid = 0b00001000 & resp[2];
- report->rdssync = 0b00000010 & resp[2];
- report->rdsfifolost = 0b00000001 & resp[2];
-
- report->tp = 0b00100000 & resp[3];
- report->pty = 0b00011111 & resp[3];
-
- report->pi = be16_to_cpup((__be16 *)(resp + 4));
- report->rdsfifoused = resp[6];
-
- report->ble[V4L2_RDS_BLOCK_A] = 0b11000000 & resp[7];
- report->ble[V4L2_RDS_BLOCK_B] = 0b00110000 & resp[7];
- report->ble[V4L2_RDS_BLOCK_C] = 0b00001100 & resp[7];
- report->ble[V4L2_RDS_BLOCK_D] = 0b00000011 & resp[7];
-
- report->rds[V4L2_RDS_BLOCK_A].block = V4L2_RDS_BLOCK_A;
- report->rds[V4L2_RDS_BLOCK_A].msb = resp[8];
- report->rds[V4L2_RDS_BLOCK_A].lsb = resp[9];
-
- report->rds[V4L2_RDS_BLOCK_B].block = V4L2_RDS_BLOCK_B;
- report->rds[V4L2_RDS_BLOCK_B].msb = resp[10];
- report->rds[V4L2_RDS_BLOCK_B].lsb = resp[11];
-
- report->rds[V4L2_RDS_BLOCK_C].block = V4L2_RDS_BLOCK_C;
- report->rds[V4L2_RDS_BLOCK_C].msb = resp[12];
- report->rds[V4L2_RDS_BLOCK_C].lsb = resp[13];
-
- report->rds[V4L2_RDS_BLOCK_D].block = V4L2_RDS_BLOCK_D;
- report->rds[V4L2_RDS_BLOCK_D].msb = resp[14];
- report->rds[V4L2_RDS_BLOCK_D].lsb = resp[15];
-
- return err;
-}
-EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_rds_status);
-
-int si476x_core_cmd_fm_rds_blockcount(struct si476x_core *core,
- bool clear,
- struct si476x_rds_blockcount_report *report)
-{
- int err;
- u8 resp[CMD_FM_RDS_BLOCKCOUNT_NRESP];
- const u8 args[CMD_FM_RDS_BLOCKCOUNT_NARGS] = {
- clear,
- };
-
- if (!report)
- return -EINVAL;
-
- err = si476x_core_send_command(core, CMD_FM_RDS_BLOCKCOUNT,
- args, ARRAY_SIZE(args),
- resp, ARRAY_SIZE(resp),
- SI476X_DEFAULT_TIMEOUT);
-
- if (!err) {
- report->expected = be16_to_cpup((__be16 *)(resp + 2));
- report->received = be16_to_cpup((__be16 *)(resp + 4));
- report->uncorrectable = be16_to_cpup((__be16 *)(resp + 6));
- }
-
- return err;
-}
-EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_rds_blockcount);
-
-int si476x_core_cmd_fm_phase_diversity(struct si476x_core *core,
- enum si476x_phase_diversity_mode mode)
-{
- u8 resp[CMD_FM_PHASE_DIVERSITY_NRESP];
- const u8 args[CMD_FM_PHASE_DIVERSITY_NARGS] = {
- mode & 0b111,
- };
-
- return si476x_core_send_command(core, CMD_FM_PHASE_DIVERSITY,
- args, ARRAY_SIZE(args),
- resp, ARRAY_SIZE(resp),
- SI476X_DEFAULT_TIMEOUT);
-}
-EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_phase_diversity);
-/**
- * si476x_core_cmd_fm_phase_div_status() - get the phase diversity
- * status
- *
- * @core: si476x device
- *
- * NOTE caller must hold core lock
- *
- * Function returns the value of the status bit in case of success and
- * negative error code in case of failre.
- */
-int si476x_core_cmd_fm_phase_div_status(struct si476x_core *core)
-{
- int err;
- u8 resp[CMD_FM_PHASE_DIV_STATUS_NRESP];
-
- err = si476x_core_send_command(core, CMD_FM_PHASE_DIV_STATUS,
- NULL, 0,
- resp, ARRAY_SIZE(resp),
- SI476X_DEFAULT_TIMEOUT);
-
- return (err < 0) ? err : resp[1];
-}
-EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_phase_div_status);
-
-
-/**
- * si476x_cmd_am_seek_start - send 'FM_SEEK_START' command to the
- * device
- * @core - device to send the command to
- * @seekup - if set the direction of the search is 'up'
- * @wrap - if set seek wraps when hitting band limit
- *
- * This function begins search for a valid station. The station is
- * considered valid when 'FM_VALID_SNR_THRESHOLD' and
- * 'FM_VALID_RSSI_THRESHOLD' and 'FM_VALID_MAX_TUNE_ERROR' criteria
- * are met.
- *
- * Function returns 0 on success and negative error code on failure
- */
-int si476x_core_cmd_am_seek_start(struct si476x_core *core,
- bool seekup, bool wrap)
-{
- u8 resp[CMD_AM_SEEK_START_NRESP];
- const u8 args[CMD_AM_SEEK_START_NARGS] = {
- seekup << 3 | wrap << 2,
- };
-
- return si476x_cmd_tune_seek_freq(core, CMD_AM_SEEK_START,
- args, sizeof(args),
- resp, sizeof(resp));
-}
-EXPORT_SYMBOL_GPL(si476x_core_cmd_am_seek_start);
-
-
-
-static int si476x_core_cmd_power_up_a10(struct si476x_core *core,
- struct si476x_power_up_args *puargs)
-{
- u8 resp[CMD_POWER_UP_A10_NRESP];
- const bool intsel = (core->pinmux.a1 == SI476X_A1_IRQ);
- const bool ctsen = (core->client->irq != 0);
- const u8 args[CMD_POWER_UP_A10_NARGS] = {
- 0xF7, /* Reserved, always 0xF7 */
- 0x3F & puargs->xcload, /* First two bits are reserved to be
- * zeros */
- ctsen << 7 | intsel << 6 | 0x07, /* Last five bits
- * are reserved to
- * be written as 0x7 */
- puargs->func << 4 | puargs->freq,
- 0x11, /* Reserved, always 0x11 */
- };
-
- return si476x_core_send_command(core, CMD_POWER_UP,
- args, ARRAY_SIZE(args),
- resp, ARRAY_SIZE(resp),
- SI476X_TIMEOUT_POWER_UP);
-}
-
-static int si476x_core_cmd_power_up_a20(struct si476x_core *core,
- struct si476x_power_up_args *puargs)
-{
- u8 resp[CMD_POWER_UP_A20_NRESP];
- const bool intsel = (core->pinmux.a1 == SI476X_A1_IRQ);
- const bool ctsen = (core->client->irq != 0);
- const u8 args[CMD_POWER_UP_A20_NARGS] = {
- puargs->ibias6x << 7 | puargs->xstart,
- 0x3F & puargs->xcload, /* First two bits are reserved to be
- * zeros */
- ctsen << 7 | intsel << 6 | puargs->fastboot << 5 |
- puargs->xbiashc << 3 | puargs->xbias,
- puargs->func << 4 | puargs->freq,
- 0x10 | puargs->xmode,
- };
-
- return si476x_core_send_command(core, CMD_POWER_UP,
- args, ARRAY_SIZE(args),
- resp, ARRAY_SIZE(resp),
- SI476X_TIMEOUT_POWER_UP);
-}
-
-static int si476x_core_cmd_power_down_a10(struct si476x_core *core,
- struct si476x_power_down_args *pdargs)
-{
- u8 resp[CMD_POWER_DOWN_A10_NRESP];
-
- return si476x_core_send_command(core, CMD_POWER_DOWN,
- NULL, 0,
- resp, ARRAY_SIZE(resp),
- SI476X_DEFAULT_TIMEOUT);
-}
-
-static int si476x_core_cmd_power_down_a20(struct si476x_core *core,
- struct si476x_power_down_args *pdargs)
-{
- u8 resp[CMD_POWER_DOWN_A20_NRESP];
- const u8 args[CMD_POWER_DOWN_A20_NARGS] = {
- pdargs->xosc,
- };
- return si476x_core_send_command(core, CMD_POWER_DOWN,
- args, ARRAY_SIZE(args),
- resp, ARRAY_SIZE(resp),
- SI476X_DEFAULT_TIMEOUT);
-}
-
-static int si476x_core_cmd_am_tune_freq_a10(struct si476x_core *core,
- struct si476x_tune_freq_args *tuneargs)
-{
-
- const int am_freq = tuneargs->freq;
- u8 resp[CMD_AM_TUNE_FREQ_NRESP];
- const u8 args[CMD_AM_TUNE_FREQ_NARGS] = {
- (tuneargs->hd << 6),
- msb(am_freq),
- lsb(am_freq),
- };
-
- return si476x_cmd_tune_seek_freq(core, CMD_AM_TUNE_FREQ, args,
- sizeof(args),
- resp, sizeof(resp));
-}
-
-static int si476x_core_cmd_am_tune_freq_a20(struct si476x_core *core,
- struct si476x_tune_freq_args *tuneargs)
-{
- const int am_freq = tuneargs->freq;
- u8 resp[CMD_AM_TUNE_FREQ_NRESP];
- const u8 args[CMD_AM_TUNE_FREQ_NARGS] = {
- (tuneargs->zifsr << 6) | (tuneargs->injside & 0b11),
- msb(am_freq),
- lsb(am_freq),
- };
-
- return si476x_cmd_tune_seek_freq(core, CMD_AM_TUNE_FREQ,
- args, sizeof(args),
- resp, sizeof(resp));
-}
-
-static int si476x_core_cmd_fm_rsq_status_a10(struct si476x_core *core,
- struct si476x_rsq_status_args *rsqargs,
- struct si476x_rsq_status_report *report)
-{
- int err;
- u8 resp[CMD_FM_RSQ_STATUS_A10_NRESP];
- const u8 args[CMD_FM_RSQ_STATUS_A10_NARGS] = {
- rsqargs->rsqack << 3 | rsqargs->attune << 2 |
- rsqargs->cancel << 1 | rsqargs->stcack,
- };
-
- err = si476x_core_send_command(core, CMD_FM_RSQ_STATUS,
- args, ARRAY_SIZE(args),
- resp, ARRAY_SIZE(resp),
- SI476X_DEFAULT_TIMEOUT);
- /*
- * Besides getting received signal quality information this
- * command can be used to just acknowledge different interrupt
- * flags in those cases it is useless to copy and parse
- * received data so user can pass NULL, and thus avoid
- * unnecessary copying.
- */
- if (err < 0 || report == NULL)
- return err;
-
- report->multhint = 0b10000000 & resp[1];
- report->multlint = 0b01000000 & resp[1];
- report->snrhint = 0b00001000 & resp[1];
- report->snrlint = 0b00000100 & resp[1];
- report->rssihint = 0b00000010 & resp[1];
- report->rssilint = 0b00000001 & resp[1];
-
- report->bltf = 0b10000000 & resp[2];
- report->snr_ready = 0b00100000 & resp[2];
- report->rssiready = 0b00001000 & resp[2];
- report->afcrl = 0b00000010 & resp[2];
- report->valid = 0b00000001 & resp[2];
-
- report->readfreq = be16_to_cpup((__be16 *)(resp + 3));
- report->freqoff = resp[5];
- report->rssi = resp[6];
- report->snr = resp[7];
- report->lassi = resp[9];
- report->hassi = resp[10];
- report->mult = resp[11];
- report->dev = resp[12];
- report->readantcap = be16_to_cpup((__be16 *)(resp + 13));
- report->assi = resp[15];
- report->usn = resp[16];
-
- return err;
-}
-
-static int si476x_core_cmd_fm_rsq_status_a20(struct si476x_core *core,
- struct si476x_rsq_status_args *rsqargs,
- struct si476x_rsq_status_report *report)
-{
- int err;
- u8 resp[CMD_FM_RSQ_STATUS_A10_NRESP];
- const u8 args[CMD_FM_RSQ_STATUS_A30_NARGS] = {
- rsqargs->primary << 4 | rsqargs->rsqack << 3 |
- rsqargs->attune << 2 | rsqargs->cancel << 1 |
- rsqargs->stcack,
- };
-
- err = si476x_core_send_command(core, CMD_FM_RSQ_STATUS,
- args, ARRAY_SIZE(args),
- resp, ARRAY_SIZE(resp),
- SI476X_DEFAULT_TIMEOUT);
- /*
- * Besides getting received signal quality information this
- * command can be used to just acknowledge different interrupt
- * flags in those cases it is useless to copy and parse
- * received data so user can pass NULL, and thus avoid
- * unnecessary copying.
- */
- if (err < 0 || report == NULL)
- return err;
-
- report->multhint = 0b10000000 & resp[1];
- report->multlint = 0b01000000 & resp[1];
- report->snrhint = 0b00001000 & resp[1];
- report->snrlint = 0b00000100 & resp[1];
- report->rssihint = 0b00000010 & resp[1];
- report->rssilint = 0b00000001 & resp[1];
-
- report->bltf = 0b10000000 & resp[2];
- report->snr_ready = 0b00100000 & resp[2];
- report->rssiready = 0b00001000 & resp[2];
- report->afcrl = 0b00000010 & resp[2];
- report->valid = 0b00000001 & resp[2];
-
- report->readfreq = be16_to_cpup((__be16 *)(resp + 3));
- report->freqoff = resp[5];
- report->rssi = resp[6];
- report->snr = resp[7];
- report->lassi = resp[9];
- report->hassi = resp[10];
- report->mult = resp[11];
- report->dev = resp[12];
- report->readantcap = be16_to_cpup((__be16 *)(resp + 13));
- report->assi = resp[15];
- report->usn = resp[16];
-
- return err;
-}
-
-
-static int si476x_core_cmd_fm_rsq_status_a30(struct si476x_core *core,
- struct si476x_rsq_status_args *rsqargs,
- struct si476x_rsq_status_report *report)
-{
- int err;
- u8 resp[CMD_FM_RSQ_STATUS_A30_NRESP];
- const u8 args[CMD_FM_RSQ_STATUS_A30_NARGS] = {
- rsqargs->primary << 4 | rsqargs->rsqack << 3 |
- rsqargs->attune << 2 | rsqargs->cancel << 1 |
- rsqargs->stcack,
- };
-
- err = si476x_core_send_command(core, CMD_FM_RSQ_STATUS,
- args, ARRAY_SIZE(args),
- resp, ARRAY_SIZE(resp),
- SI476X_DEFAULT_TIMEOUT);
- /*
- * Besides getting received signal quality information this
- * command can be used to just acknowledge different interrupt
- * flags in those cases it is useless to copy and parse
- * received data so user can pass NULL, and thus avoid
- * unnecessary copying.
- */
- if (err < 0 || report == NULL)
- return err;
-
- report->multhint = 0b10000000 & resp[1];
- report->multlint = 0b01000000 & resp[1];
- report->snrhint = 0b00001000 & resp[1];
- report->snrlint = 0b00000100 & resp[1];
- report->rssihint = 0b00000010 & resp[1];
- report->rssilint = 0b00000001 & resp[1];
-
- report->bltf = 0b10000000 & resp[2];
- report->snr_ready = 0b00100000 & resp[2];
- report->rssiready = 0b00001000 & resp[2];
- report->injside = 0b00000100 & resp[2];
- report->afcrl = 0b00000010 & resp[2];
- report->valid = 0b00000001 & resp[2];
-
- report->readfreq = be16_to_cpup((__be16 *)(resp + 3));
- report->freqoff = resp[5];
- report->rssi = resp[6];
- report->snr = resp[7];
- report->issi = resp[8];
- report->lassi = resp[9];
- report->hassi = resp[10];
- report->mult = resp[11];
- report->dev = resp[12];
- report->readantcap = be16_to_cpup((__be16 *)(resp + 13));
- report->assi = resp[15];
- report->usn = resp[16];
-
- report->pilotdev = resp[17];
- report->rdsdev = resp[18];
- report->assidev = resp[19];
- report->strongdev = resp[20];
- report->rdspi = be16_to_cpup((__be16 *)(resp + 21));
-
- return err;
-}
-
-static int si476x_core_cmd_fm_tune_freq_a10(struct si476x_core *core,
- struct si476x_tune_freq_args *tuneargs)
-{
- u8 resp[CMD_FM_TUNE_FREQ_NRESP];
- const u8 args[CMD_FM_TUNE_FREQ_A10_NARGS] = {
- (tuneargs->hd << 6) | (tuneargs->tunemode << 4)
- | (tuneargs->smoothmetrics << 2),
- msb(tuneargs->freq),
- lsb(tuneargs->freq),
- msb(tuneargs->antcap),
- lsb(tuneargs->antcap)
- };
-
- return si476x_cmd_tune_seek_freq(core, CMD_FM_TUNE_FREQ,
- args, sizeof(args),
- resp, sizeof(resp));
-}
-
-static int si476x_core_cmd_fm_tune_freq_a20(struct si476x_core *core,
- struct si476x_tune_freq_args *tuneargs)
-{
- u8 resp[CMD_FM_TUNE_FREQ_NRESP];
- const u8 args[CMD_FM_TUNE_FREQ_A20_NARGS] = {
- (tuneargs->hd << 6) | (tuneargs->tunemode << 4)
- | (tuneargs->smoothmetrics << 2) | (tuneargs->injside),
- msb(tuneargs->freq),
- lsb(tuneargs->freq),
- };
-
- return si476x_cmd_tune_seek_freq(core, CMD_FM_TUNE_FREQ,
- args, sizeof(args),
- resp, sizeof(resp));
-}
-
-static int si476x_core_cmd_agc_status_a20(struct si476x_core *core,
- struct si476x_agc_status_report *report)
-{
- int err;
- u8 resp[CMD_AGC_STATUS_NRESP_A20];
-
- if (!report)
- return -EINVAL;
-
- err = si476x_core_send_command(core, CMD_AGC_STATUS,
- NULL, 0,
- resp, ARRAY_SIZE(resp),
- SI476X_DEFAULT_TIMEOUT);
- if (err < 0)
- return err;
-
- report->mxhi = resp[1] & SI476X_AGC_MXHI;
- report->mxlo = resp[1] & SI476X_AGC_MXLO;
- report->lnahi = resp[1] & SI476X_AGC_LNAHI;
- report->lnalo = resp[1] & SI476X_AGC_LNALO;
- report->fmagc1 = resp[2];
- report->fmagc2 = resp[3];
- report->pgagain = resp[4];
- report->fmwblang = resp[5];
-
- return err;
-}
-
-static int si476x_core_cmd_agc_status_a10(struct si476x_core *core,
- struct si476x_agc_status_report *report)
-{
- int err;
- u8 resp[CMD_AGC_STATUS_NRESP_A10];
-
- if (!report)
- return -EINVAL;
-
- err = si476x_core_send_command(core, CMD_AGC_STATUS,
- NULL, 0,
- resp, ARRAY_SIZE(resp),
- SI476X_DEFAULT_TIMEOUT);
- if (err < 0)
- return err;
-
- report->mxhi = resp[1] & SI476X_AGC_MXHI;
- report->mxlo = resp[1] & SI476X_AGC_MXLO;
- report->lnahi = resp[1] & SI476X_AGC_LNAHI;
- report->lnalo = resp[1] & SI476X_AGC_LNALO;
-
- return err;
-}
-
-typedef int (*tune_freq_func_t) (struct si476x_core *core,
- struct si476x_tune_freq_args *tuneargs);
-
-static struct {
- int (*power_up) (struct si476x_core *,
- struct si476x_power_up_args *);
- int (*power_down) (struct si476x_core *,
- struct si476x_power_down_args *);
-
- tune_freq_func_t fm_tune_freq;
- tune_freq_func_t am_tune_freq;
-
- int (*fm_rsq_status)(struct si476x_core *,
- struct si476x_rsq_status_args *,
- struct si476x_rsq_status_report *);
-
- int (*agc_status)(struct si476x_core *,
- struct si476x_agc_status_report *);
- int (*intb_pin_cfg)(struct si476x_core *core,
- enum si476x_intb_config intb,
- enum si476x_a1_config a1);
-} si476x_cmds_vtable[] = {
- [SI476X_REVISION_A10] = {
- .power_up = si476x_core_cmd_power_up_a10,
- .power_down = si476x_core_cmd_power_down_a10,
- .fm_tune_freq = si476x_core_cmd_fm_tune_freq_a10,
- .am_tune_freq = si476x_core_cmd_am_tune_freq_a10,
- .fm_rsq_status = si476x_core_cmd_fm_rsq_status_a10,
- .agc_status = si476x_core_cmd_agc_status_a10,
- .intb_pin_cfg = si476x_core_cmd_intb_pin_cfg_a10,
- },
- [SI476X_REVISION_A20] = {
- .power_up = si476x_core_cmd_power_up_a20,
- .power_down = si476x_core_cmd_power_down_a20,
- .fm_tune_freq = si476x_core_cmd_fm_tune_freq_a20,
- .am_tune_freq = si476x_core_cmd_am_tune_freq_a20,
- .fm_rsq_status = si476x_core_cmd_fm_rsq_status_a20,
- .agc_status = si476x_core_cmd_agc_status_a20,
- .intb_pin_cfg = si476x_core_cmd_intb_pin_cfg_a20,
- },
- [SI476X_REVISION_A30] = {
- .power_up = si476x_core_cmd_power_up_a20,
- .power_down = si476x_core_cmd_power_down_a20,
- .fm_tune_freq = si476x_core_cmd_fm_tune_freq_a20,
- .am_tune_freq = si476x_core_cmd_am_tune_freq_a20,
- .fm_rsq_status = si476x_core_cmd_fm_rsq_status_a30,
- .agc_status = si476x_core_cmd_agc_status_a20,
- .intb_pin_cfg = si476x_core_cmd_intb_pin_cfg_a20,
- },
-};
-
-int si476x_core_cmd_power_up(struct si476x_core *core,
- struct si476x_power_up_args *args)
-{
- BUG_ON(core->revision > SI476X_REVISION_A30 ||
- core->revision == -1);
- return si476x_cmds_vtable[core->revision].power_up(core, args);
-}
-EXPORT_SYMBOL_GPL(si476x_core_cmd_power_up);
-
-int si476x_core_cmd_power_down(struct si476x_core *core,
- struct si476x_power_down_args *args)
-{
- BUG_ON(core->revision > SI476X_REVISION_A30 ||
- core->revision == -1);
- return si476x_cmds_vtable[core->revision].power_down(core, args);
-}
-EXPORT_SYMBOL_GPL(si476x_core_cmd_power_down);
-
-int si476x_core_cmd_fm_tune_freq(struct si476x_core *core,
- struct si476x_tune_freq_args *args)
-{
- BUG_ON(core->revision > SI476X_REVISION_A30 ||
- core->revision == -1);
- return si476x_cmds_vtable[core->revision].fm_tune_freq(core, args);
-}
-EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_tune_freq);
-
-int si476x_core_cmd_am_tune_freq(struct si476x_core *core,
- struct si476x_tune_freq_args *args)
-{
- BUG_ON(core->revision > SI476X_REVISION_A30 ||
- core->revision == -1);
- return si476x_cmds_vtable[core->revision].am_tune_freq(core, args);
-}
-EXPORT_SYMBOL_GPL(si476x_core_cmd_am_tune_freq);
-
-int si476x_core_cmd_fm_rsq_status(struct si476x_core *core,
- struct si476x_rsq_status_args *args,
- struct si476x_rsq_status_report *report)
-
-{
- BUG_ON(core->revision > SI476X_REVISION_A30 ||
- core->revision == -1);
- return si476x_cmds_vtable[core->revision].fm_rsq_status(core, args,
- report);
-}
-EXPORT_SYMBOL_GPL(si476x_core_cmd_fm_rsq_status);
-
-int si476x_core_cmd_agc_status(struct si476x_core *core,
- struct si476x_agc_status_report *report)
-
-{
- BUG_ON(core->revision > SI476X_REVISION_A30 ||
- core->revision == -1);
- return si476x_cmds_vtable[core->revision].agc_status(core, report);
-}
-EXPORT_SYMBOL_GPL(si476x_core_cmd_agc_status);
-
-int si476x_core_cmd_intb_pin_cfg(struct si476x_core *core,
- enum si476x_intb_config intb,
- enum si476x_a1_config a1)
-{
- BUG_ON(core->revision > SI476X_REVISION_A30 ||
- core->revision == -1);
-
- return si476x_cmds_vtable[core->revision].intb_pin_cfg(core, intb, a1);
-}
-EXPORT_SYMBOL_GPL(si476x_core_cmd_intb_pin_cfg);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Andrey Smirnov <andrew.smirnov@gmail.com>");
-MODULE_DESCRIPTION("API for command exchange for si476x");
projects / karo-tx-linux.git / commitdiff