| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Jonathan Cameron | 380 | 31.96% | 12 | 35.29% |
| Barry Song | 267 | 22.46% | 1 | 2.94% |
| Lars-Peter Clausen | 251 | 21.11% | 8 | 23.53% |
| simran singhal | 157 | 13.20% | 1 | 2.94% |
| Himanshu Jha | 114 | 9.59% | 8 | 23.53% |
| Sachin Kamat | 15 | 1.26% | 1 | 2.94% |
| Thomas Gleixner | 2 | 0.17% | 1 | 2.94% |
| Paul Gortmaker | 2 | 0.17% | 1 | 2.94% |
| Reto Schneider | 1 | 0.08% | 1 | 2.94% |
| Total | 1189 | 34 |
// SPDX-License-Identifier: GPL-2.0-or-later /* * ADIS16201 Dual-Axis Digital Inclinometer and Accelerometer * * Copyright 2010 Analog Devices Inc. */ #include <linux/device.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/slab.h> #include <linux/spi/spi.h> #include <linux/sysfs.h> #include <linux/iio/iio.h> #include <linux/iio/imu/adis.h> #define ADIS16201_STARTUP_DELAY_MS 220 #define ADIS16201_FLASH_CNT 0x00 /* Data Output Register Information */ #define ADIS16201_SUPPLY_OUT_REG 0x02 #define ADIS16201_XACCL_OUT_REG 0x04 #define ADIS16201_YACCL_OUT_REG 0x06 #define ADIS16201_AUX_ADC_REG 0x08 #define ADIS16201_TEMP_OUT_REG 0x0A #define ADIS16201_XINCL_OUT_REG 0x0C #define ADIS16201_YINCL_OUT_REG 0x0E /* Calibration Register Definition */ #define ADIS16201_XACCL_OFFS_REG 0x10 #define ADIS16201_YACCL_OFFS_REG 0x12 #define ADIS16201_XACCL_SCALE_REG 0x14 #define ADIS16201_YACCL_SCALE_REG 0x16 #define ADIS16201_XINCL_OFFS_REG 0x18 #define ADIS16201_YINCL_OFFS_REG 0x1A #define ADIS16201_XINCL_SCALE_REG 0x1C #define ADIS16201_YINCL_SCALE_REG 0x1E /* Alarm Register Definition */ #define ADIS16201_ALM_MAG1_REG 0x20 #define ADIS16201_ALM_MAG2_REG 0x22 #define ADIS16201_ALM_SMPL1_REG 0x24 #define ADIS16201_ALM_SMPL2_REG 0x26 #define ADIS16201_ALM_CTRL_REG 0x28 #define ADIS16201_AUX_DAC_REG 0x30 #define ADIS16201_GPIO_CTRL_REG 0x32 #define ADIS16201_SMPL_PRD_REG 0x36 /* Operation, filter configuration */ #define ADIS16201_AVG_CNT_REG 0x38 #define ADIS16201_SLP_CNT_REG 0x3A /* Miscellaneous Control Register Definition */ #define ADIS16201_MSC_CTRL_REG 0x34 #define ADIS16201_MSC_CTRL_SELF_TEST_EN BIT(8) /* Data-ready enable: 1 = enabled, 0 = disabled */ #define ADIS16201_MSC_CTRL_DATA_RDY_EN BIT(2) /* Data-ready polarity: 1 = active high, 0 = active low */ #define ADIS16201_MSC_CTRL_ACTIVE_DATA_RDY_HIGH BIT(1) /* Data-ready line selection: 1 = DIO1, 0 = DIO0 */ #define ADIS16201_MSC_CTRL_DATA_RDY_DIO1 BIT(0) /* Diagnostics System Status Register Definition */ #define ADIS16201_DIAG_STAT_REG 0x3C #define ADIS16201_DIAG_STAT_ALARM2 BIT(9) #define ADIS16201_DIAG_STAT_ALARM1 BIT(8) #define ADIS16201_DIAG_STAT_SPI_FAIL_BIT 3 #define ADIS16201_DIAG_STAT_FLASH_UPT_FAIL_BIT 2 /* Power supply above 3.625 V */ #define ADIS16201_DIAG_STAT_POWER_HIGH_BIT 1 /* Power supply below 3.15 V */ #define ADIS16201_DIAG_STAT_POWER_LOW_BIT 0 /* System Command Register Definition */ #define ADIS16201_GLOB_CMD_REG 0x3E #define ADIS16201_GLOB_CMD_SW_RESET BIT(7) #define ADIS16201_GLOB_CMD_FACTORY_RESET BIT(1) #define ADIS16201_ERROR_ACTIVE BIT(14) enum adis16201_scan { ADIS16201_SCAN_ACC_X, ADIS16201_SCAN_ACC_Y, ADIS16201_SCAN_INCLI_X, ADIS16201_SCAN_INCLI_Y, ADIS16201_SCAN_SUPPLY, ADIS16201_SCAN_AUX_ADC, ADIS16201_SCAN_TEMP, }; static const u8 adis16201_addresses[] = { [ADIS16201_SCAN_ACC_X] = ADIS16201_XACCL_OFFS_REG, [ADIS16201_SCAN_ACC_Y] = ADIS16201_YACCL_OFFS_REG, [ADIS16201_SCAN_INCLI_X] = ADIS16201_XINCL_OFFS_REG, [ADIS16201_SCAN_INCLI_Y] = ADIS16201_YINCL_OFFS_REG, }; static int adis16201_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; int bits; u8 addr; s16 val16; switch (mask) { case IIO_CHAN_INFO_RAW: return adis_single_conversion(indio_dev, chan, ADIS16201_ERROR_ACTIVE, val); case IIO_CHAN_INFO_SCALE: switch (chan->type) { case IIO_VOLTAGE: if (chan->channel == 0) { /* Voltage base units are mV hence 1.22 mV */ *val = 1; *val2 = 220000; } else { /* Voltage base units are mV hence 0.61 mV */ *val = 0; *val2 = 610000; } return IIO_VAL_INT_PLUS_MICRO; case IIO_TEMP: *val = -470; *val2 = 0; return IIO_VAL_INT_PLUS_MICRO; case IIO_ACCEL: /* * IIO base unit for sensitivity of accelerometer * is milli g. * 1 LSB represents 0.244 mg. */ *val = 0; *val2 = IIO_G_TO_M_S_2(462400); return IIO_VAL_INT_PLUS_NANO; case IIO_INCLI: *val = 0; *val2 = 100000; return IIO_VAL_INT_PLUS_MICRO; default: return -EINVAL; } break; case IIO_CHAN_INFO_OFFSET: /* * The raw ADC value is 1278 when the temperature * is 25 degrees and the scale factor per milli * degree celcius is -470. */ *val = 25000 / -470 - 1278; return IIO_VAL_INT; case IIO_CHAN_INFO_CALIBBIAS: switch (chan->type) { case IIO_ACCEL: bits = 12; break; case IIO_INCLI: bits = 9; break; default: return -EINVAL; } addr = adis16201_addresses[chan->scan_index]; ret = adis_read_reg_16(st, addr, &val16); if (ret) return ret; *val = sign_extend32(val16, bits - 1); return IIO_VAL_INT; } return -EINVAL; } static int adis16201_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 m; if (mask != IIO_CHAN_INFO_CALIBBIAS) return -EINVAL; switch (chan->type) { case IIO_ACCEL: m = GENMASK(11, 0); break; case IIO_INCLI: m = GENMASK(8, 0); break; default: return -EINVAL; } return adis_write_reg_16(st, adis16201_addresses[chan->scan_index], val & m); } static const struct iio_chan_spec adis16201_channels[] = { ADIS_SUPPLY_CHAN(ADIS16201_SUPPLY_OUT_REG, ADIS16201_SCAN_SUPPLY, 0, 12), ADIS_TEMP_CHAN(ADIS16201_TEMP_OUT_REG, ADIS16201_SCAN_TEMP, 0, 12), ADIS_ACCEL_CHAN(X, ADIS16201_XACCL_OUT_REG, ADIS16201_SCAN_ACC_X, BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14), ADIS_ACCEL_CHAN(Y, ADIS16201_YACCL_OUT_REG, ADIS16201_SCAN_ACC_Y, BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14), ADIS_AUX_ADC_CHAN(ADIS16201_AUX_ADC_REG, ADIS16201_SCAN_AUX_ADC, 0, 12), ADIS_INCLI_CHAN(X, ADIS16201_XINCL_OUT_REG, ADIS16201_SCAN_INCLI_X, BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14), ADIS_INCLI_CHAN(X, ADIS16201_YINCL_OUT_REG, ADIS16201_SCAN_INCLI_Y, BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14), IIO_CHAN_SOFT_TIMESTAMP(7) }; static const struct iio_info adis16201_info = { .read_raw = adis16201_read_raw, .write_raw = adis16201_write_raw, .update_scan_mode = adis_update_scan_mode, }; static const char * const adis16201_status_error_msgs[] = { [ADIS16201_DIAG_STAT_SPI_FAIL_BIT] = "SPI failure", [ADIS16201_DIAG_STAT_FLASH_UPT_FAIL_BIT] = "Flash update failed", [ADIS16201_DIAG_STAT_POWER_HIGH_BIT] = "Power supply above 3.625V", [ADIS16201_DIAG_STAT_POWER_LOW_BIT] = "Power supply below 3.15V", }; static const struct adis_data adis16201_data = { .read_delay = 20, .msc_ctrl_reg = ADIS16201_MSC_CTRL_REG, .glob_cmd_reg = ADIS16201_GLOB_CMD_REG, .diag_stat_reg = ADIS16201_DIAG_STAT_REG, .self_test_mask = ADIS16201_MSC_CTRL_SELF_TEST_EN, .self_test_no_autoclear = true, .startup_delay = ADIS16201_STARTUP_DELAY_MS, .status_error_msgs = adis16201_status_error_msgs, .status_error_mask = BIT(ADIS16201_DIAG_STAT_SPI_FAIL_BIT) | BIT(ADIS16201_DIAG_STAT_FLASH_UPT_FAIL_BIT) | BIT(ADIS16201_DIAG_STAT_POWER_HIGH_BIT) | BIT(ADIS16201_DIAG_STAT_POWER_LOW_BIT), }; static int adis16201_probe(struct spi_device *spi) { struct iio_dev *indio_dev; struct adis *st; int ret; indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); if (!indio_dev) return -ENOMEM; st = iio_priv(indio_dev); spi_set_drvdata(spi, indio_dev); indio_dev->name = spi->dev.driver->name; indio_dev->dev.parent = &spi->dev; indio_dev->info = &adis16201_info; indio_dev->channels = adis16201_channels; indio_dev->num_channels = ARRAY_SIZE(adis16201_channels); indio_dev->modes = INDIO_DIRECT_MODE; ret = adis_init(st, indio_dev, spi, &adis16201_data); if (ret) return ret; ret = adis_setup_buffer_and_trigger(st, indio_dev, NULL); if (ret) return ret; ret = adis_initial_startup(st); if (ret) goto error_cleanup_buffer_trigger; ret = iio_device_register(indio_dev); if (ret < 0) goto error_cleanup_buffer_trigger; return 0; error_cleanup_buffer_trigger: adis_cleanup_buffer_and_trigger(st, indio_dev); return ret; } static int adis16201_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 adis16201_driver = { .driver = { .name = "adis16201", }, .probe = adis16201_probe, .remove = adis16201_remove, }; module_spi_driver(adis16201_driver); MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>"); MODULE_DESCRIPTION("Analog Devices ADIS16201 Dual-Axis Digital Inclinometer and Accelerometer"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("spi:adis16201");
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