diff options
author | Lars-Peter Clausen <lars@metafoo.de> | 2013-06-10 15:00:00 +0100 |
---|---|---|
committer | Jonathan Cameron <jic23@kernel.org> | 2013-06-11 20:34:36 +0100 |
commit | 32341859f04e0f0d418d0d0eec903a959cb09ebb (patch) | |
tree | a7aafb3ea7b602aed94bfa7a4e62497cd54de6d6 /drivers/staging/iio/gyro | |
parent | 597e1a86df7965f638045fea04bd3fde57f8bd04 (diff) | |
download | linux-32341859f04e0f0d418d0d0eec903a959cb09ebb.tar.bz2 |
staging:iio:adis16130: Move out of staging
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 Remove an outdated FIXME along the way.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>
Diffstat (limited to 'drivers/staging/iio/gyro')
-rw-r--r-- | drivers/staging/iio/gyro/Kconfig | 7 | ||||
-rw-r--r-- | drivers/staging/iio/gyro/Makefile | 3 | ||||
-rw-r--r-- | drivers/staging/iio/gyro/adis16130_core.c | 208 |
3 files changed, 0 insertions, 218 deletions
diff --git a/drivers/staging/iio/gyro/Kconfig b/drivers/staging/iio/gyro/Kconfig index 836066287192..b4333715536e 100644 --- a/drivers/staging/iio/gyro/Kconfig +++ b/drivers/staging/iio/gyro/Kconfig @@ -10,13 +10,6 @@ config ADIS16060 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 diff --git a/drivers/staging/iio/gyro/Makefile b/drivers/staging/iio/gyro/Makefile index 98e650061a3a..975f95b141da 100644 --- a/drivers/staging/iio/gyro/Makefile +++ b/drivers/staging/iio/gyro/Makefile @@ -5,8 +5,5 @@ 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 diff --git a/drivers/staging/iio/gyro/adis16130_core.c b/drivers/staging/iio/gyro/adis16130_core.c deleted file mode 100644 index 89794350be61..000000000000 --- a/drivers/staging/iio/gyro/adis16130_core.c +++ /dev/null @@ -1,208 +0,0 @@ -/* - * 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"); |