[PATCH v2] Staging: iio: adis16209: Move adis16209 driver out of staging

From: Shreeya Patel
Date: Sat Mar 10 2018 - 05:20:39 EST

Move the adis16209 driver out of staging directory and merge to the
mainline IIO subsystem.

Signed-off-by: Shreeya Patel <shreeya.patel23498@xxxxxxxxx>
---

Changes in v2
-Re-send the patch after having some cleanups in the
file included in this patch.

drivers/iio/accel/Kconfig | 12 ++
drivers/iio/accel/Makefile | 1 +
drivers/iio/accel/adis16209.c | 329 ++++++++++++++++++++++++++++++++++
drivers/staging/iio/accel/Kconfig | 12 --
drivers/staging/iio/accel/Makefile | 1 -
drivers/staging/iio/accel/adis16209.c | 329 ----------------------------------
6 files changed, 342 insertions(+), 342 deletions(-)
create mode 100644 drivers/iio/accel/adis16209.c
delete mode 100644 drivers/staging/iio/accel/adis16209.c

diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig
index c6d9517..f95f43c 100644
--- a/drivers/iio/accel/Kconfig
+++ b/drivers/iio/accel/Kconfig
@@ -5,6 +5,18 @@

menu "Accelerometers"

+config ADIS16209
+ tristate "Analog Devices ADIS16209 Dual-Axis Digital Inclinometer and Accelerometer"
+ 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 adis16209 dual-axis digital inclinometer
+ and accelerometer.
+
+ To compile this driver as a module, say M here: the module will be
+ called adis16209.
+
config ADXL345
tristate

diff --git a/drivers/iio/accel/Makefile b/drivers/iio/accel/Makefile
index 368aedb..40861b9 100644
--- a/drivers/iio/accel/Makefile
+++ b/drivers/iio/accel/Makefile
@@ -4,6 +4,7 @@
#

# When adding new entries keep the list in alphabetical order
+obj-$(CONFIG_ADIS16209) += adis16209.o
obj-$(CONFIG_ADXL345) += adxl345_core.o
obj-$(CONFIG_ADXL345_I2C) += adxl345_i2c.o
obj-$(CONFIG_ADXL345_SPI) += adxl345_spi.o
diff --git a/drivers/iio/accel/adis16209.c b/drivers/iio/accel/adis16209.c
new file mode 100644
index 0000000..ed2e89f
--- /dev/null
+++ b/drivers/iio/accel/adis16209.c
@@ -0,0 +1,329 @@
+/*
+ * ADIS16209 Dual-Axis Digital Inclinometer and Accelerometer
+ *
+ * Copyright 2010 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/spi/spi.h>
+#include <linux/slab.h>
+#include <linux/sysfs.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/imu/adis.h>
+
+#define ADIS16209_STARTUP_DELAY_MS 220
+#define ADIS16209_FLASH_CNT_REG 0x00
+
+/* Data Output Register Definitions */
+#define ADIS16209_SUPPLY_OUT_REG 0x02
+#define ADIS16209_XACCL_OUT_REG 0x04
+#define ADIS16209_YACCL_OUT_REG 0x06
+/* Output, auxiliary ADC input */
+#define ADIS16209_AUX_ADC_REG 0x08
+/* Output, temperature */
+#define ADIS16209_TEMP_OUT_REG 0x0A
+/* Output, +/- 90 degrees X-axis inclination */
+#define ADIS16209_XINCL_OUT_REG 0x0C
+#define ADIS16209_YINCL_OUT_REG 0x0E
+/* Output, +/-180 vertical rotational position */
+#define ADIS16209_ROT_OUT_REG 0x10
+
+/*
+ * Calibration Register Definitions.
+ * Acceleration, inclination or rotation offset null.
+ */
+#define ADIS16209_XACCL_NULL_REG 0x12
+#define ADIS16209_YACCL_NULL_REG 0x14
+#define ADIS16209_XINCL_NULL_REG 0x16
+#define ADIS16209_YINCL_NULL_REG 0x18
+#define ADIS16209_ROT_NULL_REG 0x1A
+
+/* Alarm Register Definitions */
+#define ADIS16209_ALM_MAG1_REG 0x20
+#define ADIS16209_ALM_MAG2_REG 0x22
+#define ADIS16209_ALM_SMPL1_REG 0x24
+#define ADIS16209_ALM_SMPL2_REG 0x26
+#define ADIS16209_ALM_CTRL_REG 0x28
+
+#define ADIS16209_AUX_DAC_REG 0x30
+#define ADIS16209_GPIO_CTRL_REG 0x32
+#define ADIS16209_SMPL_PRD_REG 0x36
+#define ADIS16209_AVG_CNT_REG 0x38
+#define ADIS16209_SLP_CNT_REG 0x3A
+
+#define ADIS16209_MSC_CTRL_REG 0x34
+#define ADIS16209_MSC_CTRL_PWRUP_SELF_TEST BIT(10)
+#define ADIS16209_MSC_CTRL_SELF_TEST_EN BIT(8)
+#define ADIS16209_MSC_CTRL_DATA_RDY_EN BIT(2)
+/* Data-ready polarity: 1 = active high, 0 = active low */
+#define ADIS16209_MSC_CTRL_ACTIVE_HIGH BIT(1)
+#define ADIS16209_MSC_CTRL_DATA_RDY_DIO2 BIT(0)
+
+#define ADIS16209_STAT_REG 0x3C
+#define ADIS16209_STAT_ALARM2 BIT(9)
+#define ADIS16209_STAT_ALARM1 BIT(8)
+#define ADIS16209_STAT_SELFTEST_FAIL_BIT 5
+#define ADIS16209_STAT_SPI_FAIL_BIT 3
+#define ADIS16209_STAT_FLASH_UPT_FAIL_BIT 2
+/* Power supply above 3.625 V */
+#define ADIS16209_STAT_POWER_HIGH_BIT 1
+/* Power supply below 3.15 V */
+#define ADIS16209_STAT_POWER_LOW_BIT 0
+
+#define ADIS16209_CMD_REG 0x3E
+#define ADIS16209_CMD_SW_RESET BIT(7)
+#define ADIS16209_CMD_CLEAR_STAT BIT(4)
+#define ADIS16209_CMD_FACTORY_CAL BIT(1)
+
+#define ADIS16209_ERROR_ACTIVE BIT(14)
+
+enum adis16209_scan {
+ ADIS16209_SCAN_SUPPLY,
+ ADIS16209_SCAN_ACC_X,
+ ADIS16209_SCAN_ACC_Y,
+ ADIS16209_SCAN_AUX_ADC,
+ ADIS16209_SCAN_TEMP,
+ ADIS16209_SCAN_INCLI_X,
+ ADIS16209_SCAN_INCLI_Y,
+ ADIS16209_SCAN_ROT,
+};
+
+static const u8 adis16209_addresses[8][1] = {
+ [ADIS16209_SCAN_SUPPLY] = { },
+ [ADIS16209_SCAN_AUX_ADC] = { },
+ [ADIS16209_SCAN_ACC_X] = { ADIS16209_XACCL_NULL_REG },
+ [ADIS16209_SCAN_ACC_Y] = { ADIS16209_YACCL_NULL_REG },
+ [ADIS16209_SCAN_INCLI_X] = { ADIS16209_XINCL_NULL_REG },
+ [ADIS16209_SCAN_INCLI_Y] = { ADIS16209_YINCL_NULL_REG },
+ [ADIS16209_SCAN_ROT] = { },
+ [ADIS16209_SCAN_TEMP] = { },
+};
+
+static int adis16209_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;
+ s16 val16;
+ u8 addr;
+
+ switch (mask) {
+ case IIO_CHAN_INFO_CALIBBIAS:
+ switch (chan->type) {
+ case IIO_ACCEL:
+ case IIO_INCLI:
+ bits = 14;
+ break;
+ default:
+ return -EINVAL;
+ }
+ val16 = val & ((1 << bits) - 1);
+ addr = adis16209_addresses[chan->scan_index][0];
+ return adis_write_reg_16(st, addr, val16);
+ }
+ return -EINVAL;
+}
+
+static int adis16209_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,
+ ADIS16209_ERROR_ACTIVE, val);
+ case IIO_CHAN_INFO_SCALE:
+ switch (chan->type) {
+ case IIO_VOLTAGE:
+ *val = 0;
+ if (chan->channel == 0)
+ *val2 = 305180; /* 0.30518 mV */
+ else
+ *val2 = 610500; /* 0.6105 mV */
+ 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(244140);
+ return IIO_VAL_INT_PLUS_NANO;
+ case IIO_INCLI:
+ case IIO_ROT:
+ /*
+ * IIO base units for rotation are degrees.
+ * 1 LSB represents 0.025 milli degrees.
+ */
+ *val = 0;
+ *val2 = 25000;
+ return IIO_VAL_INT_PLUS_MICRO;
+ default:
+ return -EINVAL;
+ }
+ break;
+ case IIO_CHAN_INFO_OFFSET:
+ /*
+ * The raw ADC value is 0x4FE when the temperature
+ * is 45 degrees and the scale factor per milli
+ * degree celcius is -470.
+ */
+ *val = 25000 / -470 - 0x4FE;
+ return IIO_VAL_INT;
+ case IIO_CHAN_INFO_CALIBBIAS:
+ switch (chan->type) {
+ case IIO_ACCEL:
+ bits = 14;
+ break;
+ default:
+ return -EINVAL;
+ }
+ addr = adis16209_addresses[chan->scan_index][0];
+ ret = adis_read_reg_16(st, addr, &val16);
+ if (ret)
+ return ret;
+ val16 &= (1 << bits) - 1;
+ val16 = (s16)(val16 << (16 - bits)) >> (16 - bits);
+ *val = val16;
+ return IIO_VAL_INT;
+ }
+ return -EINVAL;
+}
+
+static const struct iio_chan_spec adis16209_channels[] = {
+ ADIS_SUPPLY_CHAN(ADIS16209_SUPPLY_OUT_REG, ADIS16209_SCAN_SUPPLY,
+ 0, 14),
+ ADIS_TEMP_CHAN(ADIS16209_TEMP_OUT_REG, ADIS16209_SCAN_TEMP, 0, 12),
+ ADIS_ACCEL_CHAN(X, ADIS16209_XACCL_OUT_REG, ADIS16209_SCAN_ACC_X,
+ BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
+ ADIS_ACCEL_CHAN(Y, ADIS16209_YACCL_OUT_REG, ADIS16209_SCAN_ACC_Y,
+ BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
+ ADIS_AUX_ADC_CHAN(ADIS16209_AUX_ADC_REG, ADIS16209_SCAN_AUX_ADC, 0, 12),
+ ADIS_INCLI_CHAN(X, ADIS16209_XINCL_OUT_REG, ADIS16209_SCAN_INCLI_X,
+ 0, 0, 14),
+ ADIS_INCLI_CHAN(Y, ADIS16209_YINCL_OUT_REG, ADIS16209_SCAN_INCLI_Y,
+ 0, 0, 14),
+ ADIS_ROT_CHAN(X, ADIS16209_ROT_OUT_REG, ADIS16209_SCAN_ROT, 0, 0, 14),
+ IIO_CHAN_SOFT_TIMESTAMP(8)
+};
+
+static const struct iio_info adis16209_info = {
+ .read_raw = adis16209_read_raw,
+ .write_raw = adis16209_write_raw,
+ .update_scan_mode = adis_update_scan_mode,
+};
+
+static const char * const adis16209_status_error_msgs[] = {
+ [ADIS16209_STAT_SELFTEST_FAIL_BIT] = "Self test failure",
+ [ADIS16209_STAT_SPI_FAIL_BIT] = "SPI failure",
+ [ADIS16209_STAT_FLASH_UPT_FAIL_BIT] = "Flash update failed",
+ [ADIS16209_STAT_POWER_HIGH_BIT] = "Power supply above 3.625V",
+ [ADIS16209_STAT_POWER_LOW_BIT] = "Power supply below 3.15V",
+};
+
+static const struct adis_data adis16209_data = {
+ .read_delay = 30,
+ .msc_ctrl_reg = ADIS16209_MSC_CTRL_REG,
+ .glob_cmd_reg = ADIS16209_CMD_REG,
+ .diag_stat_reg = ADIS16209_STAT_REG,
+
+ .self_test_mask = ADIS16209_MSC_CTRL_SELF_TEST_EN,
+ .self_test_no_autoclear = true,
+ .startup_delay = ADIS16209_STARTUP_DELAY_MS,
+
+ .status_error_msgs = adis16209_status_error_msgs,
+ .status_error_mask = BIT(ADIS16209_STAT_SELFTEST_FAIL_BIT) |
+ BIT(ADIS16209_STAT_SPI_FAIL_BIT) |
+ BIT(ADIS16209_STAT_FLASH_UPT_FAIL_BIT) |
+ BIT(ADIS16209_STAT_POWER_HIGH_BIT) |
+ BIT(ADIS16209_STAT_POWER_LOW_BIT),
+};
+
+static int adis16209_probe(struct spi_device *spi)
+{
+ int ret;
+ struct adis *st;
+ struct iio_dev *indio_dev;
+
+ 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 = &adis16209_info;
+ indio_dev->channels = adis16209_channels;
+ indio_dev->num_channels = ARRAY_SIZE(adis16209_channels);
+ indio_dev->modes = INDIO_DIRECT_MODE;
+
+ ret = adis_init(st, indio_dev, spi, &adis16209_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)
+ goto error_cleanup_buffer_trigger;
+
+ return 0;
+
+error_cleanup_buffer_trigger:
+ adis_cleanup_buffer_and_trigger(st, indio_dev);
+ return ret;
+}
+
+static int adis16209_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 adis16209_driver = {
+ .driver = {
+ .name = "adis16209",
+ },
+ .probe = adis16209_probe,
+ .remove = adis16209_remove,
+};
+module_spi_driver(adis16209_driver);
+
+MODULE_AUTHOR("Barry Song <21cnbao@xxxxxxxxx>");
+MODULE_DESCRIPTION("Analog Devices ADIS16209 Dual-Axis Digital Inclinometer and Accelerometer");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("spi:adis16209");
diff --git a/drivers/staging/iio/accel/Kconfig b/drivers/staging/iio/accel/Kconfig
index c6b0f5e..bf8e43b 100644
--- a/drivers/staging/iio/accel/Kconfig
+++ b/drivers/staging/iio/accel/Kconfig
@@ -27,18 +27,6 @@ config ADIS16203
To compile this driver as a module, say M here: the module will be
called adis16203.

-config ADIS16209
- tristate "Analog Devices ADIS16209 Dual-Axis Digital Inclinometer and Accelerometer"
- 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 adis16209 dual-axis digital inclinometer
- and accelerometer.
-
- To compile this driver as a module, say M here: the module will be
- called adis16209.
-
config ADIS16240
tristate "Analog Devices ADIS16240 Programmable Impact Sensor and Recorder"
depends on SPI
diff --git a/drivers/staging/iio/accel/Makefile b/drivers/staging/iio/accel/Makefile
index 5d8ad21..ccbcac2 100644
--- a/drivers/staging/iio/accel/Makefile
+++ b/drivers/staging/iio/accel/Makefile
@@ -4,5 +4,4 @@

obj-$(CONFIG_ADIS16201) += adis16201.o
obj-$(CONFIG_ADIS16203) += adis16203.o
-obj-$(CONFIG_ADIS16209) += adis16209.o
obj-$(CONFIG_ADIS16240) += adis16240.o
diff --git a/drivers/staging/iio/accel/adis16209.c b/drivers/staging/iio/accel/adis16209.c
deleted file mode 100644
index ed2e89f..0000000
--- a/drivers/staging/iio/accel/adis16209.c
+++ /dev/null
@@ -1,329 +0,0 @@
-/*
- * ADIS16209 Dual-Axis Digital Inclinometer and Accelerometer
- *
- * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/delay.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/list.h>
-#include <linux/module.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/iio/buffer.h>
-#include <linux/iio/imu/adis.h>
-
-#define ADIS16209_STARTUP_DELAY_MS 220
-#define ADIS16209_FLASH_CNT_REG 0x00
-
-/* Data Output Register Definitions */
-#define ADIS16209_SUPPLY_OUT_REG 0x02
-#define ADIS16209_XACCL_OUT_REG 0x04
-#define ADIS16209_YACCL_OUT_REG 0x06
-/* Output, auxiliary ADC input */
-#define ADIS16209_AUX_ADC_REG 0x08
-/* Output, temperature */
-#define ADIS16209_TEMP_OUT_REG 0x0A
-/* Output, +/- 90 degrees X-axis inclination */
-#define ADIS16209_XINCL_OUT_REG 0x0C
-#define ADIS16209_YINCL_OUT_REG 0x0E
-/* Output, +/-180 vertical rotational position */
-#define ADIS16209_ROT_OUT_REG 0x10
-
-/*
- * Calibration Register Definitions.
- * Acceleration, inclination or rotation offset null.
- */
-#define ADIS16209_XACCL_NULL_REG 0x12
-#define ADIS16209_YACCL_NULL_REG 0x14
-#define ADIS16209_XINCL_NULL_REG 0x16
-#define ADIS16209_YINCL_NULL_REG 0x18
-#define ADIS16209_ROT_NULL_REG 0x1A
-
-/* Alarm Register Definitions */
-#define ADIS16209_ALM_MAG1_REG 0x20
-#define ADIS16209_ALM_MAG2_REG 0x22
-#define ADIS16209_ALM_SMPL1_REG 0x24
-#define ADIS16209_ALM_SMPL2_REG 0x26
-#define ADIS16209_ALM_CTRL_REG 0x28
-
-#define ADIS16209_AUX_DAC_REG 0x30
-#define ADIS16209_GPIO_CTRL_REG 0x32
-#define ADIS16209_SMPL_PRD_REG 0x36
-#define ADIS16209_AVG_CNT_REG 0x38
-#define ADIS16209_SLP_CNT_REG 0x3A
-
-#define ADIS16209_MSC_CTRL_REG 0x34
-#define ADIS16209_MSC_CTRL_PWRUP_SELF_TEST BIT(10)
-#define ADIS16209_MSC_CTRL_SELF_TEST_EN BIT(8)
-#define ADIS16209_MSC_CTRL_DATA_RDY_EN BIT(2)
-/* Data-ready polarity: 1 = active high, 0 = active low */
-#define ADIS16209_MSC_CTRL_ACTIVE_HIGH BIT(1)
-#define ADIS16209_MSC_CTRL_DATA_RDY_DIO2 BIT(0)
-
-#define ADIS16209_STAT_REG 0x3C
-#define ADIS16209_STAT_ALARM2 BIT(9)
-#define ADIS16209_STAT_ALARM1 BIT(8)
-#define ADIS16209_STAT_SELFTEST_FAIL_BIT 5
-#define ADIS16209_STAT_SPI_FAIL_BIT 3
-#define ADIS16209_STAT_FLASH_UPT_FAIL_BIT 2
-/* Power supply above 3.625 V */
-#define ADIS16209_STAT_POWER_HIGH_BIT 1
-/* Power supply below 3.15 V */
-#define ADIS16209_STAT_POWER_LOW_BIT 0
-
-#define ADIS16209_CMD_REG 0x3E
-#define ADIS16209_CMD_SW_RESET BIT(7)
-#define ADIS16209_CMD_CLEAR_STAT BIT(4)
-#define ADIS16209_CMD_FACTORY_CAL BIT(1)
-
-#define ADIS16209_ERROR_ACTIVE BIT(14)
-
-enum adis16209_scan {
- ADIS16209_SCAN_SUPPLY,
- ADIS16209_SCAN_ACC_X,
- ADIS16209_SCAN_ACC_Y,
- ADIS16209_SCAN_AUX_ADC,
- ADIS16209_SCAN_TEMP,
- ADIS16209_SCAN_INCLI_X,
- ADIS16209_SCAN_INCLI_Y,
- ADIS16209_SCAN_ROT,
-};
-
-static const u8 adis16209_addresses[8][1] = {
- [ADIS16209_SCAN_SUPPLY] = { },
- [ADIS16209_SCAN_AUX_ADC] = { },
- [ADIS16209_SCAN_ACC_X] = { ADIS16209_XACCL_NULL_REG },
- [ADIS16209_SCAN_ACC_Y] = { ADIS16209_YACCL_NULL_REG },
- [ADIS16209_SCAN_INCLI_X] = { ADIS16209_XINCL_NULL_REG },
- [ADIS16209_SCAN_INCLI_Y] = { ADIS16209_YINCL_NULL_REG },
- [ADIS16209_SCAN_ROT] = { },
- [ADIS16209_SCAN_TEMP] = { },
-};
-
-static int adis16209_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;
- s16 val16;
- u8 addr;
-
- switch (mask) {
- case IIO_CHAN_INFO_CALIBBIAS:
- switch (chan->type) {
- case IIO_ACCEL:
- case IIO_INCLI:
- bits = 14;
- break;
- default:
- return -EINVAL;
- }
- val16 = val & ((1 << bits) - 1);
- addr = adis16209_addresses[chan->scan_index][0];
- return adis_write_reg_16(st, addr, val16);
- }
- return -EINVAL;
-}
-
-static int adis16209_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,
- ADIS16209_ERROR_ACTIVE, val);
- case IIO_CHAN_INFO_SCALE:
- switch (chan->type) {
- case IIO_VOLTAGE:
- *val = 0;
- if (chan->channel == 0)
- *val2 = 305180; /* 0.30518 mV */
- else
- *val2 = 610500; /* 0.6105 mV */
- 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(244140);
- return IIO_VAL_INT_PLUS_NANO;
- case IIO_INCLI:
- case IIO_ROT:
- /*
- * IIO base units for rotation are degrees.
- * 1 LSB represents 0.025 milli degrees.
- */
- *val = 0;
- *val2 = 25000;
- return IIO_VAL_INT_PLUS_MICRO;
- default:
- return -EINVAL;
- }
- break;
- case IIO_CHAN_INFO_OFFSET:
- /*
- * The raw ADC value is 0x4FE when the temperature
- * is 45 degrees and the scale factor per milli
- * degree celcius is -470.
- */
- *val = 25000 / -470 - 0x4FE;
- return IIO_VAL_INT;
- case IIO_CHAN_INFO_CALIBBIAS:
- switch (chan->type) {
- case IIO_ACCEL:
- bits = 14;
- break;
- default:
- return -EINVAL;
- }
- addr = adis16209_addresses[chan->scan_index][0];
- ret = adis_read_reg_16(st, addr, &val16);
- if (ret)
- return ret;
- val16 &= (1 << bits) - 1;
- val16 = (s16)(val16 << (16 - bits)) >> (16 - bits);
- *val = val16;
- return IIO_VAL_INT;
- }
- return -EINVAL;
-}
-
-static const struct iio_chan_spec adis16209_channels[] = {
- ADIS_SUPPLY_CHAN(ADIS16209_SUPPLY_OUT_REG, ADIS16209_SCAN_SUPPLY,
- 0, 14),
- ADIS_TEMP_CHAN(ADIS16209_TEMP_OUT_REG, ADIS16209_SCAN_TEMP, 0, 12),
- ADIS_ACCEL_CHAN(X, ADIS16209_XACCL_OUT_REG, ADIS16209_SCAN_ACC_X,
- BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
- ADIS_ACCEL_CHAN(Y, ADIS16209_YACCL_OUT_REG, ADIS16209_SCAN_ACC_Y,
- BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
- ADIS_AUX_ADC_CHAN(ADIS16209_AUX_ADC_REG, ADIS16209_SCAN_AUX_ADC, 0, 12),
- ADIS_INCLI_CHAN(X, ADIS16209_XINCL_OUT_REG, ADIS16209_SCAN_INCLI_X,
- 0, 0, 14),
- ADIS_INCLI_CHAN(Y, ADIS16209_YINCL_OUT_REG, ADIS16209_SCAN_INCLI_Y,
- 0, 0, 14),
- ADIS_ROT_CHAN(X, ADIS16209_ROT_OUT_REG, ADIS16209_SCAN_ROT, 0, 0, 14),
- IIO_CHAN_SOFT_TIMESTAMP(8)
-};
-
-static const struct iio_info adis16209_info = {
- .read_raw = adis16209_read_raw,
- .write_raw = adis16209_write_raw,
- .update_scan_mode = adis_update_scan_mode,
-};
-
-static const char * const adis16209_status_error_msgs[] = {
- [ADIS16209_STAT_SELFTEST_FAIL_BIT] = "Self test failure",
- [ADIS16209_STAT_SPI_FAIL_BIT] = "SPI failure",
- [ADIS16209_STAT_FLASH_UPT_FAIL_BIT] = "Flash update failed",
- [ADIS16209_STAT_POWER_HIGH_BIT] = "Power supply above 3.625V",
- [ADIS16209_STAT_POWER_LOW_BIT] = "Power supply below 3.15V",
-};
-
-static const struct adis_data adis16209_data = {
- .read_delay = 30,
- .msc_ctrl_reg = ADIS16209_MSC_CTRL_REG,
- .glob_cmd_reg = ADIS16209_CMD_REG,
- .diag_stat_reg = ADIS16209_STAT_REG,
-
- .self_test_mask = ADIS16209_MSC_CTRL_SELF_TEST_EN,
- .self_test_no_autoclear = true,
- .startup_delay = ADIS16209_STARTUP_DELAY_MS,
-
- .status_error_msgs = adis16209_status_error_msgs,
- .status_error_mask = BIT(ADIS16209_STAT_SELFTEST_FAIL_BIT) |
- BIT(ADIS16209_STAT_SPI_FAIL_BIT) |
- BIT(ADIS16209_STAT_FLASH_UPT_FAIL_BIT) |
- BIT(ADIS16209_STAT_POWER_HIGH_BIT) |
- BIT(ADIS16209_STAT_POWER_LOW_BIT),
-};
-
-static int adis16209_probe(struct spi_device *spi)
-{
- int ret;
- struct adis *st;
- struct iio_dev *indio_dev;
-
- 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 = &adis16209_info;
- indio_dev->channels = adis16209_channels;
- indio_dev->num_channels = ARRAY_SIZE(adis16209_channels);
- indio_dev->modes = INDIO_DIRECT_MODE;
-
- ret = adis_init(st, indio_dev, spi, &adis16209_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)
- goto error_cleanup_buffer_trigger;
-
- return 0;
-
-error_cleanup_buffer_trigger:
- adis_cleanup_buffer_and_trigger(st, indio_dev);
- return ret;
-}
-
-static int adis16209_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 adis16209_driver = {
- .driver = {
- .name = "adis16209",
- },
- .probe = adis16209_probe,
- .remove = adis16209_remove,
-};
-module_spi_driver(adis16209_driver);
-
-MODULE_AUTHOR("Barry Song <21cnbao@xxxxxxxxx>");
-MODULE_DESCRIPTION("Analog Devices ADIS16209 Dual-Axis Digital Inclinometer and Accelerometer");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("spi:adis16209");
--
2.7.4