From: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> Whilst an interesting part, no one has done significant work on this driver since 2019. The recent changes are all as a result of adis library improvements having to incorporate this device. https://www.analog.com/en/products/adis16240.html now lists this part as obsolete so the chances of anyone working on it are likely to be greatly reduced. So drop it. We can always bring it back if anyone does have interest in this device and is willing to invest the time to make it suitable for a staging graduation. How to handle the hardware triggered short bursts of capture has never been resolved and is a somewhat challenging ABI design problem. Cc: Nuno Sa <nuno.sa@xxxxxxxxxx> Cc: Rodrigo Carvalho <rodrigorsdc@xxxxxxxxx> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> --- drivers/staging/iio/accel/Kconfig | 12 - drivers/staging/iio/accel/Makefile | 1 - drivers/staging/iio/accel/adis16240.c | 443 -------------------------- 3 files changed, 456 deletions(-) diff --git a/drivers/staging/iio/accel/Kconfig b/drivers/staging/iio/accel/Kconfig index 3318997a7009..cee51f64bc4b 100644 --- a/drivers/staging/iio/accel/Kconfig +++ b/drivers/staging/iio/accel/Kconfig @@ -16,16 +16,4 @@ config ADIS16203 To compile this driver as a module, say M here: the module will be called adis16203. -config ADIS16240 - tristate "Analog Devices ADIS16240 Programmable Impact Sensor and Recorder" - depends on SPI - select IIO_ADIS_LIB - select IIO_ADIS_LIB_BUFFER if IIO_BUFFER - help - Say Y here to build support for Analog Devices adis16240 programmable - impact Sensor and recorder. - - To compile this driver as a module, say M here: the module will be - called adis16240. - endmenu diff --git a/drivers/staging/iio/accel/Makefile b/drivers/staging/iio/accel/Makefile index 094cc9be35bd..acac7bc9b9c0 100644 --- a/drivers/staging/iio/accel/Makefile +++ b/drivers/staging/iio/accel/Makefile @@ -4,4 +4,3 @@ # obj-$(CONFIG_ADIS16203) += adis16203.o -obj-$(CONFIG_ADIS16240) += adis16240.o diff --git a/drivers/staging/iio/accel/adis16240.c b/drivers/staging/iio/accel/adis16240.c deleted file mode 100644 index 3be3eaf5d9d4..000000000000 --- a/drivers/staging/iio/accel/adis16240.c +++ /dev/null @@ -1,443 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * ADIS16240 Programmable Impact Sensor and Recorder driver - * - * Copyright 2010 Analog Devices Inc. - */ - -#include <linux/device.h> -#include <linux/kernel.h> -#include <linux/spi/spi.h> -#include <linux/sysfs.h> -#include <linux/module.h> - -#include <linux/iio/iio.h> -#include <linux/iio/sysfs.h> -#include <linux/iio/imu/adis.h> - -#define ADIS16240_STARTUP_DELAY 220 /* ms */ - -/* Flash memory write count */ -#define ADIS16240_FLASH_CNT 0x00 - -/* Output, power supply */ -#define ADIS16240_SUPPLY_OUT 0x02 - -/* Output, x-axis accelerometer */ -#define ADIS16240_XACCL_OUT 0x04 - -/* Output, y-axis accelerometer */ -#define ADIS16240_YACCL_OUT 0x06 - -/* Output, z-axis accelerometer */ -#define ADIS16240_ZACCL_OUT 0x08 - -/* Output, auxiliary ADC input */ -#define ADIS16240_AUX_ADC 0x0A - -/* Output, temperature */ -#define ADIS16240_TEMP_OUT 0x0C - -/* Output, x-axis acceleration peak */ -#define ADIS16240_XPEAK_OUT 0x0E - -/* Output, y-axis acceleration peak */ -#define ADIS16240_YPEAK_OUT 0x10 - -/* Output, z-axis acceleration peak */ -#define ADIS16240_ZPEAK_OUT 0x12 - -/* Output, sum-of-squares acceleration peak */ -#define ADIS16240_XYZPEAK_OUT 0x14 - -/* Output, Capture Buffer 1, X and Y acceleration */ -#define ADIS16240_CAPT_BUF1 0x16 - -/* Output, Capture Buffer 2, Z acceleration */ -#define ADIS16240_CAPT_BUF2 0x18 - -/* Diagnostic, error flags */ -#define ADIS16240_DIAG_STAT 0x1A - -/* Diagnostic, event counter */ -#define ADIS16240_EVNT_CNTR 0x1C - -/* Diagnostic, check sum value from firmware test */ -#define ADIS16240_CHK_SUM 0x1E - -/* Calibration, x-axis acceleration offset adjustment */ -#define ADIS16240_XACCL_OFF 0x20 - -/* Calibration, y-axis acceleration offset adjustment */ -#define ADIS16240_YACCL_OFF 0x22 - -/* Calibration, z-axis acceleration offset adjustment */ -#define ADIS16240_ZACCL_OFF 0x24 - -/* Clock, hour and minute */ -#define ADIS16240_CLK_TIME 0x2E - -/* Clock, month and day */ -#define ADIS16240_CLK_DATE 0x30 - -/* Clock, year */ -#define ADIS16240_CLK_YEAR 0x32 - -/* Wake-up setting, hour and minute */ -#define ADIS16240_WAKE_TIME 0x34 - -/* Wake-up setting, month and day */ -#define ADIS16240_WAKE_DATE 0x36 - -/* Alarm 1 amplitude threshold */ -#define ADIS16240_ALM_MAG1 0x38 - -/* Alarm 2 amplitude threshold */ -#define ADIS16240_ALM_MAG2 0x3A - -/* Alarm control */ -#define ADIS16240_ALM_CTRL 0x3C - -/* Capture, external trigger control */ -#define ADIS16240_XTRIG_CTRL 0x3E - -/* Capture, address pointer */ -#define ADIS16240_CAPT_PNTR 0x40 - -/* Capture, configuration and control */ -#define ADIS16240_CAPT_CTRL 0x42 - -/* General-purpose digital input/output control */ -#define ADIS16240_GPIO_CTRL 0x44 - -/* Miscellaneous control */ -#define ADIS16240_MSC_CTRL 0x46 - -/* Internal sample period (rate) control */ -#define ADIS16240_SMPL_PRD 0x48 - -/* System command */ -#define ADIS16240_GLOB_CMD 0x4A - -/* MSC_CTRL */ - -/* Enables sum-of-squares output (XYZPEAK_OUT) */ -#define ADIS16240_MSC_CTRL_XYZPEAK_OUT_EN BIT(15) - -/* Enables peak tracking output (XPEAK_OUT, YPEAK_OUT, and ZPEAK_OUT) */ -#define ADIS16240_MSC_CTRL_X_Y_ZPEAK_OUT_EN BIT(14) - -/* Self-test enable: 1 = apply electrostatic force, 0 = disabled */ -#define ADIS16240_MSC_CTRL_SELF_TEST_EN BIT(8) - -/* Data-ready enable: 1 = enabled, 0 = disabled */ -#define ADIS16240_MSC_CTRL_DATA_RDY_EN BIT(2) - -/* Data-ready polarity: 1 = active high, 0 = active low */ -#define ADIS16240_MSC_CTRL_ACTIVE_HIGH BIT(1) - -/* Data-ready line selection: 1 = DIO2, 0 = DIO1 */ -#define ADIS16240_MSC_CTRL_DATA_RDY_DIO2 BIT(0) - -/* DIAG_STAT */ - -/* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */ -#define ADIS16240_DIAG_STAT_ALARM2 BIT(9) - -/* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */ -#define ADIS16240_DIAG_STAT_ALARM1 BIT(8) - -/* Capture buffer full: 1 = capture buffer is full */ -#define ADIS16240_DIAG_STAT_CPT_BUF_FUL BIT(7) - -/* Flash test, checksum flag: 1 = mismatch, 0 = match */ -#define ADIS16240_DIAG_STAT_CHKSUM BIT(6) - -/* Power-on, self-test flag: 1 = failure, 0 = pass */ -#define ADIS16240_DIAG_STAT_PWRON_FAIL_BIT 5 - -/* Power-on self-test: 1 = in-progress, 0 = complete */ -#define ADIS16240_DIAG_STAT_PWRON_BUSY BIT(4) - -/* SPI communications failure */ -#define ADIS16240_DIAG_STAT_SPI_FAIL_BIT 3 - -/* Flash update failure */ -#define ADIS16240_DIAG_STAT_FLASH_UPT_BIT 2 - -/* Power supply above 3.625 V */ -#define ADIS16240_DIAG_STAT_POWER_HIGH_BIT 1 - - /* Power supply below 2.225 V */ -#define ADIS16240_DIAG_STAT_POWER_LOW_BIT 0 - -/* GLOB_CMD */ - -#define ADIS16240_GLOB_CMD_RESUME BIT(8) -#define ADIS16240_GLOB_CMD_SW_RESET BIT(7) -#define ADIS16240_GLOB_CMD_STANDBY BIT(2) - -#define ADIS16240_ERROR_ACTIVE BIT(14) - -/* At the moment triggers are only used for ring buffer - * filling. This may change! - */ - -enum adis16240_scan { - ADIS16240_SCAN_ACC_X, - ADIS16240_SCAN_ACC_Y, - ADIS16240_SCAN_ACC_Z, - ADIS16240_SCAN_SUPPLY, - ADIS16240_SCAN_AUX_ADC, - ADIS16240_SCAN_TEMP, -}; - -static ssize_t adis16240_spi_read_signed(struct device *dev, - struct device_attribute *attr, - char *buf, - unsigned int bits) -{ - struct iio_dev *indio_dev = dev_to_iio_dev(dev); - struct adis *st = iio_priv(indio_dev); - int ret; - s16 val = 0; - unsigned int shift = 16 - bits; - struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); - - ret = adis_read_reg_16(st, - this_attr->address, (u16 *)&val); - if (ret) - return ret; - - if (val & ADIS16240_ERROR_ACTIVE) - adis_check_status(st); - - val = (s16)(val << shift) >> shift; - return sprintf(buf, "%d\n", val); -} - -static ssize_t adis16240_read_12bit_signed(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - return adis16240_spi_read_signed(dev, attr, buf, 12); -} - -static IIO_DEVICE_ATTR(in_accel_xyz_squared_peak_raw, 0444, - adis16240_read_12bit_signed, NULL, - ADIS16240_XYZPEAK_OUT); - -static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("4096"); - -static const u8 adis16240_addresses[][2] = { - [ADIS16240_SCAN_ACC_X] = { ADIS16240_XACCL_OFF, ADIS16240_XPEAK_OUT }, - [ADIS16240_SCAN_ACC_Y] = { ADIS16240_YACCL_OFF, ADIS16240_YPEAK_OUT }, - [ADIS16240_SCAN_ACC_Z] = { ADIS16240_ZACCL_OFF, ADIS16240_ZPEAK_OUT }, -}; - -static int adis16240_read_raw(struct iio_dev *indio_dev, - struct iio_chan_spec const *chan, - int *val, int *val2, - long mask) -{ - struct adis *st = iio_priv(indio_dev); - int ret; - u8 addr; - s16 val16; - - switch (mask) { - case IIO_CHAN_INFO_RAW: - return adis_single_conversion(indio_dev, chan, - ADIS16240_ERROR_ACTIVE, val); - case IIO_CHAN_INFO_SCALE: - switch (chan->type) { - case IIO_VOLTAGE: - if (chan->channel == 0) { - *val = 4; - *val2 = 880000; /* 4.88 mV */ - return IIO_VAL_INT_PLUS_MICRO; - } - return -EINVAL; - case IIO_TEMP: - *val = 244; /* 0.244 C */ - *val2 = 0; - return IIO_VAL_INT_PLUS_MICRO; - case IIO_ACCEL: - *val = 0; - *val2 = IIO_G_TO_M_S_2(51400); /* 51.4 mg */ - return IIO_VAL_INT_PLUS_MICRO; - default: - return -EINVAL; - } - break; - case IIO_CHAN_INFO_PEAK_SCALE: - *val = 0; - *val2 = IIO_G_TO_M_S_2(51400); /* 51.4 mg */ - return IIO_VAL_INT_PLUS_MICRO; - case IIO_CHAN_INFO_OFFSET: - *val = 25000 / 244 - 0x133; /* 25 C = 0x133 */ - return IIO_VAL_INT; - case IIO_CHAN_INFO_CALIBBIAS: - addr = adis16240_addresses[chan->scan_index][0]; - ret = adis_read_reg_16(st, addr, &val16); - if (ret) - return ret; - *val = sign_extend32(val16, 9); - return IIO_VAL_INT; - case IIO_CHAN_INFO_PEAK: - addr = adis16240_addresses[chan->scan_index][1]; - ret = adis_read_reg_16(st, addr, &val16); - if (ret) - return ret; - *val = sign_extend32(val16, 9); - return IIO_VAL_INT; - } - return -EINVAL; -} - -static int adis16240_write_raw(struct iio_dev *indio_dev, - struct iio_chan_spec const *chan, - int val, - int val2, - long mask) -{ - struct adis *st = iio_priv(indio_dev); - u8 addr; - - switch (mask) { - case IIO_CHAN_INFO_CALIBBIAS: - addr = adis16240_addresses[chan->scan_index][0]; - return adis_write_reg_16(st, addr, val & GENMASK(9, 0)); - } - return -EINVAL; -} - -static const struct iio_chan_spec adis16240_channels[] = { - ADIS_SUPPLY_CHAN(ADIS16240_SUPPLY_OUT, ADIS16240_SCAN_SUPPLY, 0, 10), - ADIS_AUX_ADC_CHAN(ADIS16240_AUX_ADC, ADIS16240_SCAN_AUX_ADC, 0, 10), - ADIS_ACCEL_CHAN(X, ADIS16240_XACCL_OUT, ADIS16240_SCAN_ACC_X, - BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK), - 0, 10), - ADIS_ACCEL_CHAN(Y, ADIS16240_YACCL_OUT, ADIS16240_SCAN_ACC_Y, - BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK), - 0, 10), - ADIS_ACCEL_CHAN(Z, ADIS16240_ZACCL_OUT, ADIS16240_SCAN_ACC_Z, - BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK), - 0, 10), - ADIS_TEMP_CHAN(ADIS16240_TEMP_OUT, ADIS16240_SCAN_TEMP, 0, 10), - IIO_CHAN_SOFT_TIMESTAMP(6) -}; - -static struct attribute *adis16240_attributes[] = { - &iio_dev_attr_in_accel_xyz_squared_peak_raw.dev_attr.attr, - &iio_const_attr_sampling_frequency_available.dev_attr.attr, - NULL -}; - -static const struct attribute_group adis16240_attribute_group = { - .attrs = adis16240_attributes, -}; - -static const struct iio_info adis16240_info = { - .attrs = &adis16240_attribute_group, - .read_raw = adis16240_read_raw, - .write_raw = adis16240_write_raw, - .update_scan_mode = adis_update_scan_mode, -}; - -static const char * const adis16240_status_error_msgs[] = { - [ADIS16240_DIAG_STAT_PWRON_FAIL_BIT] = "Power on, self-test failed", - [ADIS16240_DIAG_STAT_SPI_FAIL_BIT] = "SPI failure", - [ADIS16240_DIAG_STAT_FLASH_UPT_BIT] = "Flash update failed", - [ADIS16240_DIAG_STAT_POWER_HIGH_BIT] = "Power supply above 3.625V", - [ADIS16240_DIAG_STAT_POWER_LOW_BIT] = "Power supply below 2.225V", -}; - -static const struct adis_timeout adis16240_timeouts = { - .reset_ms = ADIS16240_STARTUP_DELAY, - .sw_reset_ms = ADIS16240_STARTUP_DELAY, - .self_test_ms = ADIS16240_STARTUP_DELAY, -}; - -static const struct adis_data adis16240_data = { - .write_delay = 35, - .read_delay = 35, - .msc_ctrl_reg = ADIS16240_MSC_CTRL, - .glob_cmd_reg = ADIS16240_GLOB_CMD, - .diag_stat_reg = ADIS16240_DIAG_STAT, - - .self_test_mask = ADIS16240_MSC_CTRL_SELF_TEST_EN, - .self_test_reg = ADIS16240_MSC_CTRL, - .self_test_no_autoclear = true, - .timeouts = &adis16240_timeouts, - - .status_error_msgs = adis16240_status_error_msgs, - .status_error_mask = BIT(ADIS16240_DIAG_STAT_PWRON_FAIL_BIT) | - BIT(ADIS16240_DIAG_STAT_SPI_FAIL_BIT) | - BIT(ADIS16240_DIAG_STAT_FLASH_UPT_BIT) | - BIT(ADIS16240_DIAG_STAT_POWER_HIGH_BIT) | - BIT(ADIS16240_DIAG_STAT_POWER_LOW_BIT), -}; - -static int adis16240_probe(struct spi_device *spi) -{ - int ret; - struct adis *st; - struct iio_dev *indio_dev; - - /* setup the industrialio driver allocated elements */ - indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); - if (!indio_dev) - return -ENOMEM; - st = iio_priv(indio_dev); - /* this is only used for removal purposes */ - spi_set_drvdata(spi, indio_dev); - - indio_dev->name = spi->dev.driver->name; - indio_dev->info = &adis16240_info; - indio_dev->channels = adis16240_channels; - indio_dev->num_channels = ARRAY_SIZE(adis16240_channels); - indio_dev->modes = INDIO_DIRECT_MODE; - - spi->mode = SPI_MODE_3; - ret = spi_setup(spi); - if (ret) { - dev_err(&spi->dev, "spi_setup failed!\n"); - return ret; - } - - ret = adis_init(st, indio_dev, spi, &adis16240_data); - if (ret) - return ret; - ret = devm_adis_setup_buffer_and_trigger(st, indio_dev, NULL); - if (ret) - return ret; - - /* Get the device into a sane initial state */ - ret = __adis_initial_startup(st); - if (ret) - return ret; - - return devm_iio_device_register(&spi->dev, indio_dev); -} - -static const struct of_device_id adis16240_of_match[] = { - { .compatible = "adi,adis16240" }, - { }, -}; -MODULE_DEVICE_TABLE(of, adis16240_of_match); - -static struct spi_driver adis16240_driver = { - .driver = { - .name = "adis16240", - .of_match_table = adis16240_of_match, - }, - .probe = adis16240_probe, -}; -module_spi_driver(adis16240_driver); - -MODULE_AUTHOR("Barry Song <21cnbao@xxxxxxxxx>"); -MODULE_DESCRIPTION("Analog Devices Programmable Impact Sensor and Recorder"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("spi:adis16240"); -MODULE_IMPORT_NS("IIO_ADISLIB"); -- 2.48.1
