Add support for CMR3000 Tri-axis accelerometer. CMR3000 supports both I2C/SPI bus communication, currently the driver supports SPI communication, since I have no hardware to test the I2C communication. --- v4: Fixes suggested by Dmitry Torokhov -Do not release the input device until the irq has been released v3: Fixes suggested by Jonathan Cameron -Support DT -Cleaner spi read/write v2: Fixes suggested by Jonathan Cameron -Code Stype -Check pdata!=NULL -SPI align Cacheline -More clear based on -%s/set/write/ -%s/accl/gyro/ -remove READ/SET macros Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@xxxxxxxxx> --- drivers/input/misc/Kconfig | 24 ++ drivers/input/misc/Makefile | 2 + drivers/input/misc/cmr3000_d0x.c | 426 ++++++++++++++++++++++++++++++++++ drivers/input/misc/cmr3000_d0x.h | 45 ++++ drivers/input/misc/cmr3000_d0x_spi.c | 144 ++++++++++++ include/linux/input/cmr3000.h | 54 +++++ 6 files changed, 695 insertions(+), 0 deletions(-) create mode 100644 drivers/input/misc/cmr3000_d0x.c create mode 100644 drivers/input/misc/cmr3000_d0x.h create mode 100644 drivers/input/misc/cmr3000_d0x_spi.c create mode 100644 include/linux/input/cmr3000.h diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index b9f2e93..7c56f94 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -524,6 +524,30 @@ config INPUT_CMA3000_SPI To compile this driver as a module, choose M here: the module will be called cma3000_d0x_spi. +config INPUT_CMR3000 + tristate "VTI CMR3000 Tri-axis gyroscope" + help + Say Y here if you want to use VTI CMR3000_D0x Gyroscope + driver + + This driver currently only supports SPI interface to the + controller. Also select the SPI method. + + If unsure, say N + + To compile this driver as a module, choose M here: the + module will be called cmr3000_d0x. + +config INPUT_CMR3000_SPI + tristate "Support SPI bus connection" + depends on INPUT_CMR3000 && SPI + help + Say Y here if you want to use VTI CMR3000_D0x Gyroscope + through SPI interface. + + To compile this driver as a module, choose M here: the + module will be called cmr3000_d0x_spi. + config INPUT_XEN_KBDDEV_FRONTEND tristate "Xen virtual keyboard and mouse support" depends on XEN_FBDEV_FRONTEND diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index 7305f6f..c7fe09a 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -21,6 +21,8 @@ obj-$(CONFIG_INPUT_CM109) += cm109.o obj-$(CONFIG_INPUT_CMA3000) += cma3000_d0x.o obj-$(CONFIG_INPUT_CMA3000_I2C) += cma3000_d0x_i2c.o obj-$(CONFIG_INPUT_CMA3000_SPI) += cma3000_d0x_spi.o +obj-$(CONFIG_INPUT_CMR3000) += cmr3000_d0x.o +obj-$(CONFIG_INPUT_CMR3000_SPI) += cmr3000_d0x_spi.o obj-$(CONFIG_INPUT_COBALT_BTNS) += cobalt_btns.o obj-$(CONFIG_INPUT_DM355EVM) += dm355evm_keys.o obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o diff --git a/drivers/input/misc/cmr3000_d0x.c b/drivers/input/misc/cmr3000_d0x.c new file mode 100644 index 0000000..d046149 --- /dev/null +++ b/drivers/input/misc/cmr3000_d0x.c @@ -0,0 +1,426 @@ +/* + * VTI CMR3000_D0x Gyroscope driver + * + * Copyright (C) 2011 Qtechnology + * Author: Ricardo Ribalda <ricardo.ribalda@xxxxxxxxx> + * + * Based on: + * drivers/input/misc/cma3000_d0x.c by: Hemanth V + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/types.h> +#include <linux/interrupt.h> +#include <linux/delay.h> +#include <linux/slab.h> +#include <linux/input.h> +#include <linux/input/cmr3000.h> +#include <linux/of.h> + +#include "cmr3000_d0x.h" + +#define CMR3000_REV 0x21 + +#define CMR3000_WHOAMI 0x00 +#define CMR3000_REVID 0x01 +#define CMR3000_CTRL 0x02 +#define CMR3000_STATUS 0x03 +#define CMR3000_X_LSB 0x0C +#define CMR3000_X_MSB 0x0D +#define CMR3000_Y_LSB 0x0E +#define CMR3000_Y_MSB 0x0F +#define CMR3000_Z_LSB 0x10 +#define CMR3000_Z_MSB 0x11 +#define CMR3000_I2C_ADDR 0x22 +#define CMR3000_PDR 0x26 + +#define CMR3000_IRQDIS (1 << 0) +#define CMR3000_MODEMASK (3 << 1) +#define CMR3000_BUSI2C (0 << 4) +#define CMR3000_BUSSPI (1 << 4) +#define CMR3000_INTLOW (1 << 6) +#define CMR3000_INTHIGH (0 << 6) +#define CMR3000_RST (1 << 7) + +#define CMRMODE_SHIFT 1 +#define CMRIRQLEVEL_SHIFT 6 + +#define CMR3000_STATUS_PERR (1 << 0) +#define CMR3000_STATUS_PORST (1 << 3) + +/* Settling time delay in ms */ +#define CMR3000_SETDELAY 30 + +/* + * Bit weights mult/div in dps for bit 0, other bits need + * multipy factor 2^n. 11th bit is the sign bit. + */ +#define BIT_TO_DPS_MUL 3 +#define BIT_TO_DPS_DIV 32 + +static struct cmr3000_platform_data cmr3000_default_pdata = { + .irq_level = CMR3000_INTHIGH, + .mode = CMRMODE_MEAS80, + .fuzz_x = 1, + .fuzz_y = 1, + .fuzz_z = 1, + .irqflags = 0, +}; + +struct cmr3000_gyro_data { + const struct cmr3000_bus_ops *bus_ops; + struct cmr3000_platform_data pdata; + + struct device *dev; + struct input_dev *input_dev; + + int irq_level; + u8 mode; + + int bit_to_mg; + int irq; + + struct mutex mutex; + bool opened; + bool suspended; +}; + +static void decode_dps(struct cmr3000_gyro_data *data, int *datax, + int *datay, int *dataz) +{ + /* Data in 2's complement, convert to dps */ + *datax = (((s16) ((*datax) << 2)) * BIT_TO_DPS_MUL) / BIT_TO_DPS_DIV; + *datay = (((s16) ((*datay) << 2)) * BIT_TO_DPS_MUL) / BIT_TO_DPS_DIV; + *dataz = (((s16) ((*dataz) << 2)) * BIT_TO_DPS_MUL) / BIT_TO_DPS_DIV; +} + +static irqreturn_t cmr3000_thread_irq(int irq, void *dev_id) +{ + struct cmr3000_gyro_data *data = dev_id; + int datax, datay, dataz; + u8 mode, intr_status; + + intr_status = data->bus_ops->read(data->dev, CMR3000_STATUS, + "irq status"); + intr_status = data->bus_ops->read(data->dev, CMR3000_CTRL, + "control mode"); + if (intr_status < 0) + return IRQ_NONE; + + /* Interrupt not for this device */ + if (intr_status & CMR3000_IRQDIS) + return IRQ_NONE; + + mode = (intr_status & CMR3000_MODEMASK) >> CMRMODE_SHIFT; + if ((mode != CMRMODE_MEAS80) + && (mode != CMRMODE_MEAS20)) + return IRQ_NONE; + + datax = (data->bus_ops->read(data->dev, CMR3000_X_MSB, "X_MSB")) << 8; + datax |= data->bus_ops->read(data->dev, CMR3000_X_LSB, "X_LSB"); + datay = (data->bus_ops->read(data->dev, CMR3000_Y_MSB, "Y_MSB")) << 8; + datay |= data->bus_ops->read(data->dev, CMR3000_Y_LSB, "Y_LSB"); + dataz = (data->bus_ops->read(data->dev, CMR3000_Z_MSB, "Z_MSB")) << 8; + dataz |= data->bus_ops->read(data->dev, CMR3000_Z_LSB, "Z_LSB"); + + /* Device closed */ + if ((data->mode != CMRMODE_MEAS80) + && (data->mode != CMRMODE_MEAS20)) + return IRQ_NONE; + + /* Decode register values to dps */ + decode_dps(data, &datax, &datay, &dataz); + + input_report_abs(data->input_dev, ABS_X, datax); + input_report_abs(data->input_dev, ABS_Y, datay); + input_report_abs(data->input_dev, ABS_Z, dataz); + input_sync(data->input_dev); + + return IRQ_HANDLED; +} + +static int cmr3000_poweron(struct cmr3000_gyro_data *data) +{ + const struct cmr3000_platform_data *pdata = &data->pdata; + u8 ctrl; + int ret; + + ctrl = pdata->irq_level << CMRIRQLEVEL_SHIFT; + ctrl |= data->mode << CMRMODE_SHIFT; + ctrl |= data->bus_ops->ctrl_mod; + ret = data->bus_ops->write(data->dev, CMR3000_CTRL, ctrl, + "Mode setting"); + if (ret < 0) + return -EIO; + + msleep(CMR3000_SETDELAY); + + return 0; +} + +static int cmr3000_poweroff(struct cmr3000_gyro_data *data) +{ + int ret; + u8 ctrl = CMRMODE_POFF; + + ctrl |= data->bus_ops->ctrl_mod; + ctrl |= CMR3000_IRQDIS; + + ret = data->bus_ops->write(data->dev, CMR3000_CTRL, ctrl, + "Mode setting"); + msleep(CMR3000_SETDELAY); + + return ret; +} + +static int cmr3000_reset(struct cmr3000_gyro_data *data) +{ + int val; + + /* Reset chip */ + data->bus_ops->write(data->dev, CMR3000_CTRL, CMR3000_RST, "Reset"); + mdelay(2); + + /* Settling time delay */ + val = data->bus_ops->read(data->dev, CMR3000_STATUS, "Status"); + if (val < 0) { + dev_err(data->dev, "Reset failed\n"); + return val; + } + + if (val & CMR3000_STATUS_PERR) { + dev_err(data->dev, "Parity Error\n"); + return -EIO; + } + + return cmr3000_poweroff(data); +} + +static int cmr3000_open(struct input_dev *input_dev) +{ + struct cmr3000_gyro_data *data = input_get_drvdata(input_dev); + + mutex_lock(&data->mutex); + + if (!data->suspended) + cmr3000_poweron(data); + + data->opened = true; + + mutex_unlock(&data->mutex); + + return 0; +} + +static void cmr3000_close(struct input_dev *input_dev) +{ + struct cmr3000_gyro_data *data = input_get_drvdata(input_dev); + + mutex_lock(&data->mutex); + + if (!data->suspended) + cmr3000_poweroff(data); + + data->opened = false; + + mutex_unlock(&data->mutex); +} + +void cmr3000_suspend(struct cmr3000_gyro_data *data) +{ + mutex_lock(&data->mutex); + + if (!data->suspended && data->opened) + cmr3000_poweroff(data); + + data->suspended = true; + + mutex_unlock(&data->mutex); +} +EXPORT_SYMBOL(cmr3000_suspend); + +void cmr3000_resume(struct cmr3000_gyro_data *data) +{ + mutex_lock(&data->mutex); + + if (data->suspended && data->opened) + cmr3000_poweron(data); + + data->suspended = false; + + mutex_unlock(&data->mutex); +} +EXPORT_SYMBOL(cmr3000_resume); + +#ifdef CONFIG_OF +void cmr3000_get_pdata_of(struct device *dev, struct cmr3000_gyro_data *data) +{ + const __be32 *property; + int len; + + property = of_get_property(dev->of_node, "vti,irq_level", &len); + if (property && len == sizeof(int)) + data->pdata.irq_level = be32_to_cpup(property); + + property = of_get_property(dev->of_node, "vti,mode", &len); + if (property && len == sizeof(int)) + data->pdata.mode = be32_to_cpup(property); + + property = of_get_property(dev->of_node, "vti,fuzz_x", &len); + if (property && len == sizeof(int)) + data->pdata.fuzz_x = be32_to_cpup(property); + + property = of_get_property(dev->of_node, "vti,fuzz_y", &len); + if (property && len == sizeof(int)) + data->pdata.fuzz_y = be32_to_cpup(property); + + property = of_get_property(dev->of_node, "vti,fuzz_z", &len); + if (property && len == sizeof(int)) + data->pdata.fuzz_z = be32_to_cpup(property); + + property = of_get_property(dev->of_node, "vti,irqflags", &len); + if (property && len == sizeof(int)) + data->pdata.irqflags = be32_to_cpup(property); + + return; +} +#endif + +struct cmr3000_gyro_data *cmr3000_init(struct device *dev, int irq, + const struct cmr3000_bus_ops *bops) +{ + struct cmr3000_platform_data *pdata; + struct cmr3000_gyro_data *data; + struct input_dev *input_dev; + int rev; + int error; + + /* if no IRQ return error */ + if (irq == 0) { + error = -EINVAL; + goto err_out; + } + + data = kzalloc(sizeof(struct cmr3000_gyro_data), GFP_KERNEL); + input_dev = input_allocate_device(); + if (!data || !input_dev) { + error = -ENOMEM; + goto err_free_mem; + } + + /*Init platform data*/ + if (dev->platform_data != NULL) { + memcpy(&data->pdata, dev->platform_data, sizeof(data->pdata)); + } else { + memcpy(&data->pdata, &cmr3000_default_pdata, + sizeof(data->pdata)); + #ifdef CONFIG_OF + if (dev->of_node != NULL) + cmr3000_get_pdata_of(dev, data); + else + #endif + dev_info(dev, "platform data not found, using default\n"); + } + pdata = &data->pdata; + + data->dev = dev; + data->input_dev = input_dev; + data->bus_ops = bops; + data->irq = irq; + mutex_init(&data->mutex); + + data->mode = pdata->mode; + if ((data->mode != CMRMODE_MEAS80) + && (data->mode != CMRMODE_MEAS20)) { + data->mode = CMRMODE_MEAS80; + dev_warn(dev, "Invalid mode specified, assuming 80Hz\n"); + } + + data->irq_level = pdata->irq_level; + if ((data->irq_level != CMR3000_INTLOW) + && (data->irq_level != CMR3000_INTHIGH)) { + data->irq_level = CMR3000_INTHIGH; + dev_warn(data->dev, + "Invalid int level specified, assuming high\n"); + } + + input_dev->name = "cmr3000-gyroscope"; + input_dev->id.bustype = bops->bustype; + input_dev->open = cmr3000_open; + input_dev->close = cmr3000_close; + + __set_bit(EV_ABS, input_dev->evbit); + + input_set_abs_params(input_dev, ABS_X, + -CMRRANGE, CMRRANGE, pdata->fuzz_x, 0); + input_set_abs_params(input_dev, ABS_Y, + -CMRRANGE, CMRRANGE, pdata->fuzz_y, 0); + input_set_abs_params(input_dev, ABS_Z, + -CMRRANGE, CMRRANGE, pdata->fuzz_z, 0); + + input_set_drvdata(input_dev, data); + + error = cmr3000_reset(data); + if (error) + goto err_free_mem; + + rev = data->bus_ops->read(data->dev, CMR3000_REVID, "Revid"); + if (rev < 0) { + error = rev; + goto err_free_mem; + } + if (rev != CMR3000_REV) { + error = -EINVAL; + pr_err("CMR3000 Gyroscope: Unknown Revision %x\n", rev); + goto err_free_mem; + } + pr_info("CMR3000 Gyroscope: Revision %x\n", rev); + + error = request_threaded_irq(irq, NULL, cmr3000_thread_irq, + pdata->irqflags | IRQF_ONESHOT, + "cmr3000_d0x", data); + if (error) { + dev_err(dev, "request_threaded_irq failed\n"); + goto err_free_mem; + } + + error = input_register_device(data->input_dev); + if (error) { + dev_err(dev, "Unable to register input device\n"); + goto err_free_irq; + } + + return data; + +err_free_irq: + free_irq(irq, data); +err_free_mem: + input_free_device(input_dev); + kfree(data); +err_out: + return ERR_PTR(error); +} +EXPORT_SYMBOL(cmr3000_init); + +void cmr3000_exit(struct cmr3000_gyro_data *data) +{ + free_irq(data->irq, data); + input_unregister_device(data->input_dev); + kfree(data); +} +EXPORT_SYMBOL(cmr3000_exit); + +MODULE_DESCRIPTION("CMR3000-D0x Gyroscope Driver"); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Ricardo Ribalda <ricardo.ribalda@xxxxxxxxx>"); diff --git a/drivers/input/misc/cmr3000_d0x.h b/drivers/input/misc/cmr3000_d0x.h new file mode 100644 index 0000000..3d0984a --- /dev/null +++ b/drivers/input/misc/cmr3000_d0x.h @@ -0,0 +1,45 @@ +/* + * VTI CMR3000_D0x Gyroscpe driver + * + * Copyright (C) 2011 Qtechnology + * Author: Ricardo Ribalda <ricardo.ribalda@xxxxxxxxx> + * + * Based on: + * drivers/input/misc/cma3000_d0x.h by Hemanth V + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _INPUT_CMR3000_H +#define _INPUT_CMR3000_H + +#include <linux/types.h> +#include <linux/input.h> + +struct device; +struct cmr3000_gyro_data; + +struct cmr3000_bus_ops { + u16 bustype; + u8 ctrl_mod; + int (*read) (struct device *, u8, char *); + int (*write) (struct device *, u8, u8, char *); +}; + +struct cmr3000_gyro_data *cmr3000_init(struct device *dev, int irq, + const struct cmr3000_bus_ops *bops); +void cmr3000_exit(struct cmr3000_gyro_data *); +void cmr3000_suspend(struct cmr3000_gyro_data *); +void cmr3000_resume(struct cmr3000_gyro_data *); + +#endif diff --git a/drivers/input/misc/cmr3000_d0x_spi.c b/drivers/input/misc/cmr3000_d0x_spi.c new file mode 100644 index 0000000..7f27fa3 --- /dev/null +++ b/drivers/input/misc/cmr3000_d0x_spi.c @@ -0,0 +1,144 @@ +/* + * Implements SPI interface for VTI CMR300_D0x Accelerometer driver + * + * Copyright (C) 2011 Qtechnology + * Author: Ricardo Ribalda <ricardo.ribalda@xxxxxxxxxxxxx> + * Based on: + * drivers/input/misc/cma3000_d0x_i2c.c by Hemanth V + * drivers/input/mis/adxl34x-spi.c by Michael Hennerich + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/delay.h> +#include <linux/module.h> +#include <linux/spi/spi.h> +#include <linux/input/cmr3000.h> +#include "cmr3000_d0x.h" + +static int cmr3000_spi_write(struct device *dev, u8 reg, u8 val, char *msg) +{ + struct spi_device *spi = to_spi_device(dev); + int ret; + u8 tmp[2]; + + tmp[0] = (reg << 2) | 2; + tmp[1] = val; + + ret = spi_write_then_read(spi, tmp, sizeof(tmp), NULL, 0); + if (ret < 0) { + dev_err(dev, "%s failed (%s, %d)\n", __func__, msg, ret); + return ret; + } + return 0; +} + +static int cmr3000_spi_read(struct device *dev, u8 reg, char *msg) +{ + struct spi_device *spi = to_spi_device(dev); + int ret; + + ret = spi_w8r8(spi, reg << 2); + if (ret < 0) + dev_err(dev, "%s failed (%s, %d)\n", __func__, msg, ret); + + return ret; +} + +static const struct cmr3000_bus_ops cmr3000_spi_bops = { + .bustype = BUS_SPI, +#define CMR3000_BUSSPI (1 << 4) + .ctrl_mod = CMR3000_BUSSPI, + .read = cmr3000_spi_read, + .write = cmr3000_spi_write, +}; + +static int __devinit cmr3000_spi_probe(struct spi_device *spi) +{ + struct cmr3000_gyro_data *data; + + data = cmr3000_init(&spi->dev, spi->irq, &cmr3000_spi_bops); + if (IS_ERR(data)) + return PTR_ERR(data); + + spi_set_drvdata(spi, data); + + return 0; +} + +static int __devexit cmr3000_spi_remove(struct spi_device *spi) +{ + struct cmr3000_gyro_data *data = dev_get_drvdata(&spi->dev); + + cmr3000_exit(data); + + return 0; +} + +#ifdef CONFIG_PM +static int cmr3000_spi_suspend(struct device *dev) +{ + struct spi_device *spi = to_spi_device(dev); + struct cmr3000_gyro_data *data = dev_get_drvdata(&spi->dev); + + cmr3000_suspend(data); + + return 0; +} + +static int cmr3000_spi_resume(struct device *dev) +{ + struct spi_device *spi = to_spi_device(dev); + struct cmr3000_gyro_data *data = dev_get_drvdata(&spi->dev); + + cmr3000_resume(data); + + return 0; +} + +static const struct dev_pm_ops cmr3000_spi_pm_ops = { + .suspend = cmr3000_spi_suspend, + .resume = cmr3000_spi_resume, +}; +#endif + +static SIMPLE_DEV_PM_OPS(cmr3000_spi_pm, cmr3000_spi_suspend, + cmr3000_spi_resume); + +static struct spi_driver cmr3000_driver = { + .driver = { + .name = "cmr3000_d01", + .bus = &spi_bus_type, + .owner = THIS_MODULE, + .pm = &cmr3000_spi_pm, + }, + .probe = cmr3000_spi_probe, + .remove = __devexit_p(cmr3000_spi_remove), +}; + +static int __init cmr3000_spi_init(void) +{ + return spi_register_driver(&cmr3000_driver); +} + +static void __exit cmr3000_spi_exit(void) +{ + spi_unregister_driver(&cmr3000_driver); +} + +module_init(cmr3000_spi_init); +module_exit(cmr3000_spi_exit); + +MODULE_DESCRIPTION("CMR3000-D0x Gyroscope SPI Driver"); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Ricardo Ribalda <ricardo.ribalda@xxxxxxxxx>"); diff --git a/include/linux/input/cmr3000.h b/include/linux/input/cmr3000.h new file mode 100644 index 0000000..dfcf9e3 --- /dev/null +++ b/include/linux/input/cmr3000.h @@ -0,0 +1,54 @@ +/* + * VTI CMR3000_Dxx Gyroscope driver + * + * Copyright (C) 2011 Qtechnology + * Author: Ricardo Ribalda <ricardo.ribalda@xxxxxxxxx> + * + * Based on: + * include/linux/input/cma3000.h by Hemanth V + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _LINUX_CMR3000_H +#define _LINUX_CMR3000_H + +#define CMRMODE_DEFAULT 0 +#define CMRMODE_STANDBY 1 +#define CMRMODE_MEAS20 2 +#define CMRMODE_MEAS80 3 +#define CMRMODE_POFF 0 + +#define CMRIRQLEVEL_LOW 1 +#define CMRIRQLEVEL_HIGH 0 + +#define CMRRANGE 3072 + +/** + * struct cmr3000_platform_data - CMR3000 Platform data + * @fuzz_x: Noise on X Axis + * @fuzz_y: Noise on Y Axis + * @fuzz_z: Noise on Z Axis + * @mode: Operating mode + * @irq_level: Irq level + */ +struct cmr3000_platform_data { + int fuzz_x; + int fuzz_y; + int fuzz_z; + uint8_t irq_level; + uint8_t mode; + unsigned long irqflags; +}; + +#endif -- 1.7.7 -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
