The adis16130 driver is fairly simple and it a good shape now, so move it out of
staging. Remove an outdated FIXME along the way.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Say yes here to build support for Analog Devices ADIS16080, ADIS16100 Yaw
Rate Gyroscope with SPI.
+config ADIS16130
+ tristate "Analog Devices ADIS16130 High Precision Angular Rate Sensor driver"
+ depends on SPI
+ help
+ Say yes here to build support for Analog Devices ADIS16130 High Precision
+ Angular Rate Sensor driver.
+
config ADIS16136
tristate "Analog devices ADIS16136 and similar gyroscopes driver"
depends on SPI_MASTER
#
obj-$(CONFIG_ADIS16080) += adis16080.o
+obj-$(CONFIG_ADIS16130) += adis16130.o
obj-$(CONFIG_ADIS16136) += adis16136.o
obj-$(CONFIG_ADXRS450) += adxrs450.o
--- /dev/null
+/*
+ * ADIS16130 Digital Output, High Precision Angular Rate Sensor driver
+ *
+ * Copyright 2010 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/mutex.h>
+#include <linux/kernel.h>
+#include <linux/spi/spi.h>
+#include <linux/module.h>
+
+#include <linux/iio/iio.h>
+
+#define ADIS16130_CON 0x0
+#define ADIS16130_CON_RD (1 << 6)
+#define ADIS16130_IOP 0x1
+
+/* 1 = data-ready signal low when unread data on all channels; */
+#define ADIS16130_IOP_ALL_RDY (1 << 3)
+#define ADIS16130_IOP_SYNC (1 << 0) /* 1 = synchronization enabled */
+#define ADIS16130_RATEDATA 0x8 /* Gyroscope output, rate of rotation */
+#define ADIS16130_TEMPDATA 0xA /* Temperature output */
+#define ADIS16130_RATECS 0x28 /* Gyroscope channel setup */
+#define ADIS16130_RATECS_EN (1 << 3) /* 1 = channel enable; */
+#define ADIS16130_TEMPCS 0x2A /* Temperature channel setup */
+#define ADIS16130_TEMPCS_EN (1 << 3)
+#define ADIS16130_RATECONV 0x30
+#define ADIS16130_TEMPCONV 0x32
+#define ADIS16130_MODE 0x38
+#define ADIS16130_MODE_24BIT (1 << 1) /* 1 = 24-bit resolution; */
+
+/**
+ * struct adis16130_state - device instance specific data
+ * @us: actual spi_device to write data
+ * @buf_lock: mutex to protect tx and rx
+ * @buf: unified tx/rx buffer
+ **/
+struct adis16130_state {
+ struct spi_device *us;
+ struct mutex buf_lock;
+ u8 buf[4] ____cacheline_aligned;
+};
+
+static int adis16130_spi_read(struct iio_dev *indio_dev, u8 reg_addr, u32 *val)
+{
+ int ret;
+ struct adis16130_state *st = iio_priv(indio_dev);
+ struct spi_message msg;
+ struct spi_transfer xfer = {
+ .tx_buf = st->buf,
+ .rx_buf = st->buf,
+ .len = 4,
+ };
+
+ mutex_lock(&st->buf_lock);
+
+ st->buf[0] = ADIS16130_CON_RD | reg_addr;
+ st->buf[1] = st->buf[2] = st->buf[3] = 0;
+
+ spi_message_init(&msg);
+ spi_message_add_tail(&xfer, &msg);
+ ret = spi_sync(st->us, &msg);
+
+ if (ret == 0)
+ *val = (st->buf[1] << 16) | (st->buf[2] << 8) | st->buf[3];
+ mutex_unlock(&st->buf_lock);
+
+ return ret;
+}
+
+static int adis16130_read_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ int *val, int *val2,
+ long mask)
+{
+ int ret;
+ u32 temp;
+
+ switch (mask) {
+ case IIO_CHAN_INFO_RAW:
+ /* Take the iio_dev status lock */
+ mutex_lock(&indio_dev->mlock);
+ ret = adis16130_spi_read(indio_dev, chan->address, &temp);
+ mutex_unlock(&indio_dev->mlock);
+ if (ret)
+ return ret;
+ *val = temp;
+ return IIO_VAL_INT;
+ case IIO_CHAN_INFO_SCALE:
+ switch (chan->type) {
+ case IIO_ANGL_VEL:
+ /* 0 degree = 838860, 250 degree = 14260608 */
+ *val = 250;
+ *val2 = 336440817; /* RAD_TO_DEGREE(14260608 - 8388608) */
+ return IIO_VAL_FRACTIONAL;
+ case IIO_TEMP:
+ /* 0C = 8036283, 105C = 9516048 */
+ *val = 105000;
+ *val2 = 9516048 - 8036283;
+ return IIO_VAL_FRACTIONAL;
+ default:
+ return -EINVAL;
+ }
+ break;
+ case IIO_CHAN_INFO_OFFSET:
+ switch (chan->type) {
+ case IIO_ANGL_VEL:
+ *val = -8388608;
+ return IIO_VAL_INT;
+ case IIO_TEMP:
+ *val = -8036283;
+ return IIO_VAL_INT;
+ default:
+ return -EINVAL;
+ }
+ break;
+ }
+
+ return -EINVAL;
+}
+
+static const struct iio_chan_spec adis16130_channels[] = {
+ {
+ .type = IIO_ANGL_VEL,
+ .modified = 1,
+ .channel2 = IIO_MOD_Z,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+ BIT(IIO_CHAN_INFO_SCALE) |
+ BIT(IIO_CHAN_INFO_OFFSET),
+ .address = ADIS16130_RATEDATA,
+ }, {
+ .type = IIO_TEMP,
+ .indexed = 1,
+ .channel = 0,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+ BIT(IIO_CHAN_INFO_SCALE) |
+ BIT(IIO_CHAN_INFO_OFFSET),
+ .address = ADIS16130_TEMPDATA,
+ }
+};
+
+static const struct iio_info adis16130_info = {
+ .read_raw = &adis16130_read_raw,
+ .driver_module = THIS_MODULE,
+};
+
+static int adis16130_probe(struct spi_device *spi)
+{
+ int ret;
+ struct adis16130_state *st;
+ struct iio_dev *indio_dev;
+
+ /* setup the industrialio driver allocated elements */
+ indio_dev = iio_device_alloc(sizeof(*st));
+ if (indio_dev == NULL) {
+ ret = -ENOMEM;
+ goto error_ret;
+ }
+ st = iio_priv(indio_dev);
+ /* this is only used for removal purposes */
+ spi_set_drvdata(spi, indio_dev);
+ st->us = spi;
+ mutex_init(&st->buf_lock);
+ indio_dev->name = spi->dev.driver->name;
+ indio_dev->channels = adis16130_channels;
+ indio_dev->num_channels = ARRAY_SIZE(adis16130_channels);
+ indio_dev->dev.parent = &spi->dev;
+ indio_dev->info = &adis16130_info;
+ indio_dev->modes = INDIO_DIRECT_MODE;
+
+ ret = iio_device_register(indio_dev);
+ if (ret)
+ goto error_free_dev;
+
+ return 0;
+
+error_free_dev:
+ iio_device_free(indio_dev);
+
+error_ret:
+ return ret;
+}
+
+static int adis16130_remove(struct spi_device *spi)
+{
+ iio_device_unregister(spi_get_drvdata(spi));
+ iio_device_free(spi_get_drvdata(spi));
+
+ return 0;
+}
+
+static struct spi_driver adis16130_driver = {
+ .driver = {
+ .name = "adis16130",
+ .owner = THIS_MODULE,
+ },
+ .probe = adis16130_probe,
+ .remove = adis16130_remove,
+};
+module_spi_driver(adis16130_driver);
+
+MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
+MODULE_DESCRIPTION("Analog Devices ADIS16130 High Precision Angular Rate");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("spi:adis16130");
Say yes here to build support for Analog Devices adis16060 wide bandwidth
yaw rate gyroscope with SPI.
-config ADIS16130
- tristate "Analog Devices ADIS16130 High Precision Angular Rate Sensor driver"
- depends on SPI
- help
- Say yes here to build support for Analog Devices ADIS16130 High Precision
- Angular Rate Sensor driver.
-
config ADIS16260
tristate "Analog Devices ADIS16260 Digital Gyroscope Sensor SPI driver"
depends on SPI
adis16060-y := adis16060_core.o
obj-$(CONFIG_ADIS16060) += adis16060.o
-adis16130-y := adis16130_core.o
-obj-$(CONFIG_ADIS16130) += adis16130.o
-
adis16260-y := adis16260_core.o
obj-$(CONFIG_ADIS16260) += adis16260.o
+++ /dev/null
-/*
- * ADIS16130 Digital Output, High Precision Angular Rate Sensor driver
- *
- * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/mutex.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-
-#define ADIS16130_CON 0x0
-#define ADIS16130_CON_RD (1 << 6)
-#define ADIS16130_IOP 0x1
-
-/* 1 = data-ready signal low when unread data on all channels; */
-#define ADIS16130_IOP_ALL_RDY (1 << 3)
-#define ADIS16130_IOP_SYNC (1 << 0) /* 1 = synchronization enabled */
-#define ADIS16130_RATEDATA 0x8 /* Gyroscope output, rate of rotation */
-#define ADIS16130_TEMPDATA 0xA /* Temperature output */
-#define ADIS16130_RATECS 0x28 /* Gyroscope channel setup */
-#define ADIS16130_RATECS_EN (1 << 3) /* 1 = channel enable; */
-#define ADIS16130_TEMPCS 0x2A /* Temperature channel setup */
-#define ADIS16130_TEMPCS_EN (1 << 3)
-#define ADIS16130_RATECONV 0x30
-#define ADIS16130_TEMPCONV 0x32
-#define ADIS16130_MODE 0x38
-#define ADIS16130_MODE_24BIT (1 << 1) /* 1 = 24-bit resolution; */
-
-/**
- * struct adis16130_state - device instance specific data
- * @us: actual spi_device to write data
- * @buf_lock: mutex to protect tx and rx
- * @buf: unified tx/rx buffer
- **/
-struct adis16130_state {
- struct spi_device *us;
- struct mutex buf_lock;
- u8 buf[4] ____cacheline_aligned;
-};
-
-static int adis16130_spi_read(struct iio_dev *indio_dev, u8 reg_addr, u32 *val)
-{
- int ret;
- struct adis16130_state *st = iio_priv(indio_dev);
- struct spi_message msg;
- struct spi_transfer xfer = {
- .tx_buf = st->buf,
- .rx_buf = st->buf,
- .len = 4,
- };
-
- mutex_lock(&st->buf_lock);
-
- st->buf[0] = ADIS16130_CON_RD | reg_addr;
- st->buf[1] = st->buf[2] = st->buf[3] = 0;
-
- spi_message_init(&msg);
- spi_message_add_tail(&xfer, &msg);
- ret = spi_sync(st->us, &msg);
-
- if (ret == 0)
- *val = (st->buf[1] << 16) | (st->buf[2] << 8) | st->buf[3];
- mutex_unlock(&st->buf_lock);
-
- return ret;
-}
-
-static int adis16130_read_raw(struct iio_dev *indio_dev,
- struct iio_chan_spec const *chan,
- int *val, int *val2,
- long mask)
-{
- int ret;
- u32 temp;
-
- switch (mask) {
- case IIO_CHAN_INFO_RAW:
- /* Take the iio_dev status lock */
- mutex_lock(&indio_dev->mlock);
- ret = adis16130_spi_read(indio_dev, chan->address, &temp);
- mutex_unlock(&indio_dev->mlock);
- if (ret)
- return ret;
- *val = temp;
- return IIO_VAL_INT;
- case IIO_CHAN_INFO_SCALE:
- switch (chan->type) {
- case IIO_ANGL_VEL:
- /* 0 degree = 838860, 250 degree = 14260608 */
- *val = 250;
- *val2 = 336440817; /* RAD_TO_DEGREE(14260608 - 8388608) */
- return IIO_VAL_FRACTIONAL;
- case IIO_TEMP:
- /* 0C = 8036283, 105C = 9516048 */
- *val = 105000;
- *val2 = 9516048 - 8036283;
- return IIO_VAL_FRACTIONAL;
- default:
- return -EINVAL;
- }
- break;
- case IIO_CHAN_INFO_OFFSET:
- switch (chan->type) {
- case IIO_ANGL_VEL:
- *val = -8388608;
- return IIO_VAL_INT;
- case IIO_TEMP:
- *val = -8036283;
- return IIO_VAL_INT;
- default:
- return -EINVAL;
- }
- break;
- }
-
- return -EINVAL;
-}
-
-static const struct iio_chan_spec adis16130_channels[] = {
- {
- .type = IIO_ANGL_VEL,
- .modified = 1,
- .channel2 = IIO_MOD_Z,
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
- BIT(IIO_CHAN_INFO_SCALE) |
- BIT(IIO_CHAN_INFO_OFFSET),
- .address = ADIS16130_RATEDATA,
- }, {
- .type = IIO_TEMP,
- .indexed = 1,
- .channel = 0,
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
- BIT(IIO_CHAN_INFO_SCALE) |
- BIT(IIO_CHAN_INFO_OFFSET),
- .address = ADIS16130_TEMPDATA,
- }
-};
-
-static const struct iio_info adis16130_info = {
- .read_raw = &adis16130_read_raw,
- .driver_module = THIS_MODULE,
-};
-
-static int adis16130_probe(struct spi_device *spi)
-{
- int ret;
- struct adis16130_state *st;
- struct iio_dev *indio_dev;
-
- /* setup the industrialio driver allocated elements */
- indio_dev = iio_device_alloc(sizeof(*st));
- if (indio_dev == NULL) {
- ret = -ENOMEM;
- goto error_ret;
- }
- st = iio_priv(indio_dev);
- /* this is only used for removal purposes */
- spi_set_drvdata(spi, indio_dev);
- st->us = spi;
- mutex_init(&st->buf_lock);
- indio_dev->name = spi->dev.driver->name;
- indio_dev->channels = adis16130_channels;
- indio_dev->num_channels = ARRAY_SIZE(adis16130_channels);
- indio_dev->dev.parent = &spi->dev;
- indio_dev->info = &adis16130_info;
- indio_dev->modes = INDIO_DIRECT_MODE;
-
- ret = iio_device_register(indio_dev);
- if (ret)
- goto error_free_dev;
-
- return 0;
-
-error_free_dev:
- iio_device_free(indio_dev);
-
-error_ret:
- return ret;
-}
-
-/* fixme, confirm ordering in this function */
-static int adis16130_remove(struct spi_device *spi)
-{
- iio_device_unregister(spi_get_drvdata(spi));
- iio_device_free(spi_get_drvdata(spi));
-
- return 0;
-}
-
-static struct spi_driver adis16130_driver = {
- .driver = {
- .name = "adis16130",
- .owner = THIS_MODULE,
- },
- .probe = adis16130_probe,
- .remove = adis16130_remove,
-};
-module_spi_driver(adis16130_driver);
-
-MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
-MODULE_DESCRIPTION("Analog Devices ADIS16130 High Precision Angular Rate");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("spi:adis16130");
projects / GitHub / exynos8895 / android_kernel_samsung_universal8895.git / commitdiff