| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Jonathan Cameron | 488 | 31.63% | 15 | 44.12% |
| Lars-Peter Clausen | 400 | 25.92% | 8 | 23.53% |
| Barry Song | 328 | 21.26% | 1 | 2.94% |
| Narcisa Ana Maria Vasile | 291 | 18.86% | 2 | 5.88% |
| Sachin Kamat | 15 | 0.97% | 1 | 2.94% |
| Karim Eshapa | 10 | 0.65% | 1 | 2.94% |
| Mike Frysinger | 3 | 0.19% | 1 | 2.94% |
| Paul Gortmaker | 3 | 0.19% | 1 | 2.94% |
| Svetlana Orlik | 2 | 0.13% | 1 | 2.94% |
| sayli karnik | 1 | 0.06% | 1 | 2.94% |
| Varsha Rao | 1 | 0.06% | 1 | 2.94% |
| Manuel Stahl | 1 | 0.06% | 1 | 2.94% |
| Total | 1543 | 34 |
/* * ADIS16240 Programmable Impact Sensor and Recorder driver * * Copyright 2010 Analog Devices Inc. * * Licensed under the GPL-2 or later. */ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/gpio.h> #include <linux/delay.h> #include <linux/device.h> #include <linux/kernel.h> #include <linux/spi/spi.h> #include <linux/slab.h> #include <linux/sysfs.h> #include <linux/list.h> #include <linux/module.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> #include <linux/iio/buffer.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 3.15 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); int bits = 10; s16 val16; u8 addr; switch (mask) { case IIO_CHAN_INFO_CALIBBIAS: val16 = val & ((1 << bits) - 1); addr = adis16240_addresses[chan->scan_index][0]; return adis_write_reg_16(st, addr, val16); } 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_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_no_autoclear = true, .startup_delay = ADIS16240_STARTUP_DELAY, .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->dev.parent = &spi->dev; indio_dev->info = &adis16240_info; indio_dev->channels = adis16240_channels; indio_dev->num_channels = ARRAY_SIZE(adis16240_channels); indio_dev->modes = INDIO_DIRECT_MODE; ret = adis_init(st, indio_dev, spi, &adis16240_data); if (ret) return ret; ret = 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) goto error_cleanup_buffer_trigger; ret = iio_device_register(indio_dev); if (ret) goto error_cleanup_buffer_trigger; return 0; error_cleanup_buffer_trigger: adis_cleanup_buffer_and_trigger(st, indio_dev); return ret; } static int adis16240_remove(struct spi_device *spi) { struct iio_dev *indio_dev = spi_get_drvdata(spi); struct adis *st = iio_priv(indio_dev); iio_device_unregister(indio_dev); adis_cleanup_buffer_and_trigger(st, indio_dev); return 0; } static struct spi_driver adis16240_driver = { .driver = { .name = "adis16240", }, .probe = adis16240_probe, .remove = adis16240_remove, }; module_spi_driver(adis16240_driver); MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>"); MODULE_DESCRIPTION("Analog Devices Programmable Impact Sensor and Recorder"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("spi:adis16240");
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