Input: add driver for Bosch Sensortec's BMA150 accelerometer
Signed-off-by: Albert Zhang <xu.zhang@bosch-sensortec.com> Signed-off-by: Eric Andersson <eric.andersson@unixphere.com> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Reviewed-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Eric Andersson
Dmitry Torokhov
parent
5e3e4eb1bf
commit
c17ca3f5a2
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@ -62,6 +62,17 @@ config INPUT_AD714X_SPI
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To compile this driver as a module, choose M here: the
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module will be called ad714x-spi.
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config INPUT_BMA150
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tristate "BMA150/SMB380 acceleration sensor support"
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depends on I2C
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select INPUT_POLLDEV
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help
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Say Y here if you have Bosch Sensortec's BMA150 or SMB380
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acceleration sensor hooked to an I2C bus.
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To compile this driver as a module, choose M here: the
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module will be called bma150.
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config INPUT_PCSPKR
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tristate "PC Speaker support"
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depends on PCSPKR_PLATFORM
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@ -17,6 +17,7 @@ obj-$(CONFIG_INPUT_ATI_REMOTE) += ati_remote.o
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obj-$(CONFIG_INPUT_ATI_REMOTE2) += ati_remote2.o
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obj-$(CONFIG_INPUT_ATLAS_BTNS) += atlas_btns.o
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obj-$(CONFIG_INPUT_BFIN_ROTARY) += bfin_rotary.o
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obj-$(CONFIG_INPUT_BMA150) += bma150.o
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obj-$(CONFIG_INPUT_CM109) += cm109.o
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obj-$(CONFIG_INPUT_CMA3000) += cma3000_d0x.o
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obj-$(CONFIG_INPUT_CMA3000_I2C) += cma3000_d0x_i2c.o
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@ -0,0 +1,691 @@
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/*
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* Copyright (c) 2011 Bosch Sensortec GmbH
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* Copyright (c) 2011 Unixphere
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*
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* This driver adds support for Bosch Sensortec's digital acceleration
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* sensors BMA150 and SMB380.
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* The SMB380 is fully compatible with BMA150 and only differs in packaging.
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*
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* The datasheet for the BMA150 chip can be found here:
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* http://www.bosch-sensortec.com/content/language1/downloads/BST-BMA150-DS000-07.pdf
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/i2c.h>
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#include <linux/input.h>
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#include <linux/input-polldev.h>
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#include <linux/interrupt.h>
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include <linux/pm.h>
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#include <linux/pm_runtime.h>
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#include <linux/bma150.h>
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#define ABSMAX_ACC_VAL 0x01FF
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#define ABSMIN_ACC_VAL -(ABSMAX_ACC_VAL)
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/* Each axis is represented by a 2-byte data word */
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#define BMA150_XYZ_DATA_SIZE 6
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/* Input poll interval in milliseconds */
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#define BMA150_POLL_INTERVAL 10
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#define BMA150_POLL_MAX 200
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#define BMA150_POLL_MIN 0
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#define BMA150_BW_25HZ 0
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#define BMA150_BW_50HZ 1
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#define BMA150_BW_100HZ 2
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#define BMA150_BW_190HZ 3
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#define BMA150_BW_375HZ 4
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#define BMA150_BW_750HZ 5
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#define BMA150_BW_1500HZ 6
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#define BMA150_RANGE_2G 0
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#define BMA150_RANGE_4G 1
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#define BMA150_RANGE_8G 2
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#define BMA150_MODE_NORMAL 0
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#define BMA150_MODE_SLEEP 2
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#define BMA150_MODE_WAKE_UP 3
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/* Data register addresses */
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#define BMA150_DATA_0_REG 0x00
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#define BMA150_DATA_1_REG 0x01
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#define BMA150_DATA_2_REG 0x02
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/* Control register addresses */
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#define BMA150_CTRL_0_REG 0x0A
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#define BMA150_CTRL_1_REG 0x0B
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#define BMA150_CTRL_2_REG 0x14
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#define BMA150_CTRL_3_REG 0x15
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/* Configuration/Setting register addresses */
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#define BMA150_CFG_0_REG 0x0C
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#define BMA150_CFG_1_REG 0x0D
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#define BMA150_CFG_2_REG 0x0E
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#define BMA150_CFG_3_REG 0x0F
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#define BMA150_CFG_4_REG 0x10
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#define BMA150_CFG_5_REG 0x11
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#define BMA150_CHIP_ID 2
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#define BMA150_CHIP_ID_REG BMA150_DATA_0_REG
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#define BMA150_ACC_X_LSB_REG BMA150_DATA_2_REG
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#define BMA150_SLEEP_POS 0
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#define BMA150_SLEEP_MSK 0x01
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#define BMA150_SLEEP_REG BMA150_CTRL_0_REG
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#define BMA150_BANDWIDTH_POS 0
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#define BMA150_BANDWIDTH_MSK 0x07
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#define BMA150_BANDWIDTH_REG BMA150_CTRL_2_REG
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#define BMA150_RANGE_POS 3
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#define BMA150_RANGE_MSK 0x18
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#define BMA150_RANGE_REG BMA150_CTRL_2_REG
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#define BMA150_WAKE_UP_POS 0
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#define BMA150_WAKE_UP_MSK 0x01
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#define BMA150_WAKE_UP_REG BMA150_CTRL_3_REG
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#define BMA150_SW_RES_POS 1
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#define BMA150_SW_RES_MSK 0x02
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#define BMA150_SW_RES_REG BMA150_CTRL_0_REG
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/* Any-motion interrupt register fields */
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#define BMA150_ANY_MOTION_EN_POS 6
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#define BMA150_ANY_MOTION_EN_MSK 0x40
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#define BMA150_ANY_MOTION_EN_REG BMA150_CTRL_1_REG
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#define BMA150_ANY_MOTION_DUR_POS 6
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#define BMA150_ANY_MOTION_DUR_MSK 0xC0
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#define BMA150_ANY_MOTION_DUR_REG BMA150_CFG_5_REG
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#define BMA150_ANY_MOTION_THRES_REG BMA150_CFG_4_REG
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/* Advanced interrupt register fields */
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#define BMA150_ADV_INT_EN_POS 6
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#define BMA150_ADV_INT_EN_MSK 0x40
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#define BMA150_ADV_INT_EN_REG BMA150_CTRL_3_REG
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/* High-G interrupt register fields */
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#define BMA150_HIGH_G_EN_POS 1
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#define BMA150_HIGH_G_EN_MSK 0x02
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#define BMA150_HIGH_G_EN_REG BMA150_CTRL_1_REG
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#define BMA150_HIGH_G_HYST_POS 3
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#define BMA150_HIGH_G_HYST_MSK 0x38
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#define BMA150_HIGH_G_HYST_REG BMA150_CFG_5_REG
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#define BMA150_HIGH_G_DUR_REG BMA150_CFG_3_REG
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#define BMA150_HIGH_G_THRES_REG BMA150_CFG_2_REG
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/* Low-G interrupt register fields */
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#define BMA150_LOW_G_EN_POS 0
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#define BMA150_LOW_G_EN_MSK 0x01
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#define BMA150_LOW_G_EN_REG BMA150_CTRL_1_REG
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#define BMA150_LOW_G_HYST_POS 0
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#define BMA150_LOW_G_HYST_MSK 0x07
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#define BMA150_LOW_G_HYST_REG BMA150_CFG_5_REG
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#define BMA150_LOW_G_DUR_REG BMA150_CFG_1_REG
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#define BMA150_LOW_G_THRES_REG BMA150_CFG_0_REG
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struct bma150_data {
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struct i2c_client *client;
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struct input_polled_dev *input_polled;
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struct input_dev *input;
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u8 mode;
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};
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/*
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* The settings for the given range, bandwidth and interrupt features
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* are stated and verified by Bosch Sensortec where they are configured
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* to provide a generic sensitivity performance.
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*/
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static struct bma150_cfg default_cfg __devinitdata = {
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.any_motion_int = 1,
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.hg_int = 1,
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.lg_int = 1,
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.any_motion_dur = 0,
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.any_motion_thres = 0,
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.hg_hyst = 0,
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.hg_dur = 150,
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.hg_thres = 160,
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.lg_hyst = 0,
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.lg_dur = 150,
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.lg_thres = 20,
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.range = BMA150_RANGE_2G,
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.bandwidth = BMA150_BW_50HZ
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};
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static int bma150_write_byte(struct i2c_client *client, u8 reg, u8 val)
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{
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s32 ret;
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/* As per specification, disable irq in between register writes */
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if (client->irq)
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disable_irq_nosync(client->irq);
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ret = i2c_smbus_write_byte_data(client, reg, val);
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if (client->irq)
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enable_irq(client->irq);
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return ret;
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}
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static int bma150_set_reg_bits(struct i2c_client *client,
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int val, int shift, u8 mask, u8 reg)
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{
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int data;
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data = i2c_smbus_read_byte_data(client, reg);
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if (data < 0)
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return data;
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data = (data & ~mask) | ((val << shift) & mask);
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return bma150_write_byte(client, reg, data);
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}
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static int bma150_set_mode(struct bma150_data *bma150, u8 mode)
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{
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int error;
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error = bma150_set_reg_bits(bma150->client, mode, BMA150_WAKE_UP_POS,
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BMA150_WAKE_UP_MSK, BMA150_WAKE_UP_REG);
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if (error)
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return error;
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error = bma150_set_reg_bits(bma150->client, mode, BMA150_SLEEP_POS,
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BMA150_SLEEP_MSK, BMA150_SLEEP_REG);
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if (error)
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return error;
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if (mode == BMA150_MODE_NORMAL)
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msleep(2);
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bma150->mode = mode;
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return 0;
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}
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static int __devinit bma150_soft_reset(struct bma150_data *bma150)
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{
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int error;
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error = bma150_set_reg_bits(bma150->client, 1, BMA150_SW_RES_POS,
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BMA150_SW_RES_MSK, BMA150_SW_RES_REG);
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if (error)
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return error;
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msleep(2);
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return 0;
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}
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static int __devinit bma150_set_range(struct bma150_data *bma150, u8 range)
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{
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return bma150_set_reg_bits(bma150->client, range, BMA150_RANGE_POS,
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BMA150_RANGE_MSK, BMA150_RANGE_REG);
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}
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static int __devinit bma150_set_bandwidth(struct bma150_data *bma150, u8 bw)
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{
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return bma150_set_reg_bits(bma150->client, bw, BMA150_BANDWIDTH_POS,
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BMA150_BANDWIDTH_MSK, BMA150_BANDWIDTH_REG);
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}
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static int __devinit bma150_set_low_g_interrupt(struct bma150_data *bma150,
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u8 enable, u8 hyst, u8 dur, u8 thres)
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{
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int error;
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error = bma150_set_reg_bits(bma150->client, hyst,
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BMA150_LOW_G_HYST_POS, BMA150_LOW_G_HYST_MSK,
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BMA150_LOW_G_HYST_REG);
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if (error)
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return error;
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error = bma150_write_byte(bma150->client, BMA150_LOW_G_DUR_REG, dur);
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if (error)
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return error;
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error = bma150_write_byte(bma150->client, BMA150_LOW_G_THRES_REG, thres);
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if (error)
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return error;
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return bma150_set_reg_bits(bma150->client, !!enable,
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BMA150_LOW_G_EN_POS, BMA150_LOW_G_EN_MSK,
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BMA150_LOW_G_EN_REG);
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}
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static int __devinit bma150_set_high_g_interrupt(struct bma150_data *bma150,
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u8 enable, u8 hyst, u8 dur, u8 thres)
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{
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int error;
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error = bma150_set_reg_bits(bma150->client, hyst,
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BMA150_HIGH_G_HYST_POS, BMA150_HIGH_G_HYST_MSK,
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BMA150_HIGH_G_HYST_REG);
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if (error)
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return error;
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error = bma150_write_byte(bma150->client,
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BMA150_HIGH_G_DUR_REG, dur);
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if (error)
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return error;
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error = bma150_write_byte(bma150->client,
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BMA150_HIGH_G_THRES_REG, thres);
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if (error)
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return error;
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return bma150_set_reg_bits(bma150->client, !!enable,
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BMA150_HIGH_G_EN_POS, BMA150_HIGH_G_EN_MSK,
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BMA150_HIGH_G_EN_REG);
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}
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static int __devinit bma150_set_any_motion_interrupt(struct bma150_data *bma150,
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u8 enable, u8 dur, u8 thres)
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{
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int error;
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error = bma150_set_reg_bits(bma150->client, dur,
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BMA150_ANY_MOTION_DUR_POS,
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BMA150_ANY_MOTION_DUR_MSK,
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BMA150_ANY_MOTION_DUR_REG);
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if (error)
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return error;
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error = bma150_write_byte(bma150->client,
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BMA150_ANY_MOTION_THRES_REG, thres);
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if (error)
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return error;
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error = bma150_set_reg_bits(bma150->client, !!enable,
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BMA150_ADV_INT_EN_POS, BMA150_ADV_INT_EN_MSK,
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BMA150_ADV_INT_EN_REG);
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if (error)
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return error;
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return bma150_set_reg_bits(bma150->client, !!enable,
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BMA150_ANY_MOTION_EN_POS,
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BMA150_ANY_MOTION_EN_MSK,
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BMA150_ANY_MOTION_EN_REG);
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}
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static void bma150_report_xyz(struct bma150_data *bma150)
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{
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u8 data[BMA150_XYZ_DATA_SIZE];
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s16 x, y, z;
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s32 ret;
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ret = i2c_smbus_read_i2c_block_data(bma150->client,
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BMA150_ACC_X_LSB_REG, BMA150_XYZ_DATA_SIZE, data);
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if (ret != BMA150_XYZ_DATA_SIZE)
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return;
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x = ((0xc0 & data[0]) >> 6) | (data[1] << 2);
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y = ((0xc0 & data[2]) >> 6) | (data[3] << 2);
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z = ((0xc0 & data[4]) >> 6) | (data[5] << 2);
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/* sign extension */
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x = (s16) (x << 6) >> 6;
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y = (s16) (y << 6) >> 6;
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z = (s16) (z << 6) >> 6;
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input_report_abs(bma150->input, ABS_X, x);
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input_report_abs(bma150->input, ABS_Y, y);
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input_report_abs(bma150->input, ABS_Z, z);
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input_sync(bma150->input);
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}
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static irqreturn_t bma150_irq_thread(int irq, void *dev)
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{
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bma150_report_xyz(dev);
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return IRQ_HANDLED;
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}
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static void bma150_poll(struct input_polled_dev *dev)
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{
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bma150_report_xyz(dev->private);
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}
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static int bma150_open(struct bma150_data *bma150)
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{
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int error;
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error = pm_runtime_get_sync(&bma150->client->dev);
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if (error && error != -ENOSYS)
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return error;
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/*
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* See if runtime PM woke up the device. If runtime PM
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* is disabled we need to do it ourselves.
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*/
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if (bma150->mode != BMA150_MODE_NORMAL) {
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error = bma150_set_mode(bma150, BMA150_MODE_NORMAL);
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if (error)
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return error;
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}
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return 0;
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}
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static void bma150_close(struct bma150_data *bma150)
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{
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pm_runtime_put_sync(&bma150->client->dev);
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if (bma150->mode != BMA150_MODE_SLEEP)
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bma150_set_mode(bma150, BMA150_MODE_SLEEP);
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}
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static int bma150_irq_open(struct input_dev *input)
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{
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struct bma150_data *bma150 = input_get_drvdata(input);
|
||||
|
||||
return bma150_open(bma150);
|
||||
}
|
||||
|
||||
static void bma150_irq_close(struct input_dev *input)
|
||||
{
|
||||
struct bma150_data *bma150 = input_get_drvdata(input);
|
||||
|
||||
bma150_close(bma150);
|
||||
}
|
||||
|
||||
static void bma150_poll_open(struct input_polled_dev *ipoll_dev)
|
||||
{
|
||||
struct bma150_data *bma150 = ipoll_dev->private;
|
||||
|
||||
bma150_open(bma150);
|
||||
}
|
||||
|
||||
static void bma150_poll_close(struct input_polled_dev *ipoll_dev)
|
||||
{
|
||||
struct bma150_data *bma150 = ipoll_dev->private;
|
||||
|
||||
bma150_close(bma150);
|
||||
}
|
||||
|
||||
static int __devinit bma150_initialize(struct bma150_data *bma150,
|
||||
const struct bma150_cfg *cfg)
|
||||
{
|
||||
int error;
|
||||
|
||||
error = bma150_soft_reset(bma150);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
error = bma150_set_bandwidth(bma150, cfg->bandwidth);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
error = bma150_set_range(bma150, cfg->range);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
if (bma150->client->irq) {
|
||||
error = bma150_set_any_motion_interrupt(bma150,
|
||||
cfg->any_motion_int,
|
||||
cfg->any_motion_dur,
|
||||
cfg->any_motion_thres);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
error = bma150_set_high_g_interrupt(bma150,
|
||||
cfg->hg_int, cfg->hg_hyst,
|
||||
cfg->hg_dur, cfg->hg_thres);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
error = bma150_set_low_g_interrupt(bma150,
|
||||
cfg->lg_int, cfg->lg_hyst,
|
||||
cfg->lg_dur, cfg->lg_thres);
|
||||
if (error)
|
||||
return error;
|
||||
}
|
||||
|
||||
return bma150_set_mode(bma150, BMA150_MODE_SLEEP);
|
||||
}
|
||||
|
||||
static void __devinit bma150_init_input_device(struct bma150_data *bma150,
|
||||
struct input_dev *idev)
|
||||
{
|
||||
idev->name = BMA150_DRIVER;
|
||||
idev->phys = BMA150_DRIVER "/input0";
|
||||
idev->id.bustype = BUS_I2C;
|
||||
idev->dev.parent = &bma150->client->dev;
|
||||
|
||||
idev->evbit[0] = BIT_MASK(EV_ABS);
|
||||
input_set_abs_params(idev, ABS_X, ABSMIN_ACC_VAL, ABSMAX_ACC_VAL, 0, 0);
|
||||
input_set_abs_params(idev, ABS_Y, ABSMIN_ACC_VAL, ABSMAX_ACC_VAL, 0, 0);
|
||||
input_set_abs_params(idev, ABS_Z, ABSMIN_ACC_VAL, ABSMAX_ACC_VAL, 0, 0);
|
||||
}
|
||||
|
||||
static int __devinit bma150_register_input_device(struct bma150_data *bma150)
|
||||
{
|
||||
struct input_dev *idev;
|
||||
int error;
|
||||
|
||||
idev = input_allocate_device();
|
||||
if (!idev)
|
||||
return -ENOMEM;
|
||||
|
||||
bma150_init_input_device(bma150, idev);
|
||||
|
||||
idev->open = bma150_irq_open;
|
||||
idev->close = bma150_irq_close;
|
||||
input_set_drvdata(idev, bma150);
|
||||
|
||||
error = input_register_device(idev);
|
||||
if (error) {
|
||||
input_free_device(idev);
|
||||
return error;
|
||||
}
|
||||
|
||||
bma150->input = idev;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int __devinit bma150_register_polled_device(struct bma150_data *bma150)
|
||||
{
|
||||
struct input_polled_dev *ipoll_dev;
|
||||
int error;
|
||||
|
||||
ipoll_dev = input_allocate_polled_device();
|
||||
if (!ipoll_dev)
|
||||
return -ENOMEM;
|
||||
|
||||
ipoll_dev->private = bma150;
|
||||
ipoll_dev->open = bma150_poll_open;
|
||||
ipoll_dev->close = bma150_poll_close;
|
||||
ipoll_dev->poll = bma150_poll;
|
||||
ipoll_dev->poll_interval = BMA150_POLL_INTERVAL;
|
||||
ipoll_dev->poll_interval_min = BMA150_POLL_MIN;
|
||||
ipoll_dev->poll_interval_max = BMA150_POLL_MAX;
|
||||
|
||||
bma150_init_input_device(bma150, ipoll_dev->input);
|
||||
|
||||
error = input_register_polled_device(ipoll_dev);
|
||||
if (error) {
|
||||
input_free_polled_device(ipoll_dev);
|
||||
return error;
|
||||
}
|
||||
|
||||
bma150->input_polled = ipoll_dev;
|
||||
bma150->input = ipoll_dev->input;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int __devinit bma150_probe(struct i2c_client *client,
|
||||
const struct i2c_device_id *id)
|
||||
{
|
||||
const struct bma150_platform_data *pdata = client->dev.platform_data;
|
||||
const struct bma150_cfg *cfg;
|
||||
struct bma150_data *bma150;
|
||||
int chip_id;
|
||||
int error;
|
||||
|
||||
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
|
||||
dev_err(&client->dev, "i2c_check_functionality error\n");
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
chip_id = i2c_smbus_read_byte_data(client, BMA150_CHIP_ID_REG);
|
||||
if (chip_id != BMA150_CHIP_ID) {
|
||||
dev_err(&client->dev, "BMA150 chip id error: %d\n", chip_id);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
bma150 = kzalloc(sizeof(struct bma150_data), GFP_KERNEL);
|
||||
if (!bma150)
|
||||
return -ENOMEM;
|
||||
|
||||
bma150->client = client;
|
||||
|
||||
if (pdata) {
|
||||
if (pdata->irq_gpio_cfg) {
|
||||
error = pdata->irq_gpio_cfg();
|
||||
if (error) {
|
||||
dev_err(&client->dev,
|
||||
"IRQ GPIO conf. error %d, error %d\n",
|
||||
client->irq, error);
|
||||
goto err_free_mem;
|
||||
}
|
||||
}
|
||||
cfg = &pdata->cfg;
|
||||
} else {
|
||||
cfg = &default_cfg;
|
||||
}
|
||||
|
||||
error = bma150_initialize(bma150, cfg);
|
||||
if (error)
|
||||
goto err_free_mem;
|
||||
|
||||
if (client->irq > 0) {
|
||||
error = bma150_register_input_device(bma150);
|
||||
if (error)
|
||||
goto err_free_mem;
|
||||
|
||||
error = request_threaded_irq(client->irq,
|
||||
NULL, bma150_irq_thread,
|
||||
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
|
||||
BMA150_DRIVER, bma150);
|
||||
if (error) {
|
||||
dev_err(&client->dev,
|
||||
"irq request failed %d, error %d\n",
|
||||
client->irq, error);
|
||||
input_unregister_device(bma150->input);
|
||||
goto err_free_mem;
|
||||
}
|
||||
} else {
|
||||
error = bma150_register_polled_device(bma150);
|
||||
if (error)
|
||||
goto err_free_mem;
|
||||
}
|
||||
|
||||
i2c_set_clientdata(client, bma150);
|
||||
|
||||
pm_runtime_enable(&client->dev);
|
||||
|
||||
return 0;
|
||||
|
||||
err_free_mem:
|
||||
kfree(bma150);
|
||||
return error;
|
||||
}
|
||||
|
||||
static int __devexit bma150_remove(struct i2c_client *client)
|
||||
{
|
||||
struct bma150_data *bma150 = i2c_get_clientdata(client);
|
||||
|
||||
pm_runtime_disable(&client->dev);
|
||||
|
||||
if (client->irq > 0) {
|
||||
free_irq(client->irq, bma150);
|
||||
input_unregister_device(bma150->input);
|
||||
} else {
|
||||
input_unregister_polled_device(bma150->input_polled);
|
||||
input_free_polled_device(bma150->input_polled);
|
||||
}
|
||||
|
||||
kfree(bma150);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
static int bma150_suspend(struct device *dev)
|
||||
{
|
||||
struct i2c_client *client = to_i2c_client(dev);
|
||||
struct bma150_data *bma150 = i2c_get_clientdata(client);
|
||||
|
||||
return bma150_set_mode(bma150, BMA150_MODE_SLEEP);
|
||||
}
|
||||
|
||||
static int bma150_resume(struct device *dev)
|
||||
{
|
||||
struct i2c_client *client = to_i2c_client(dev);
|
||||
struct bma150_data *bma150 = i2c_get_clientdata(client);
|
||||
|
||||
return bma150_set_mode(bma150, BMA150_MODE_NORMAL);
|
||||
}
|
||||
#endif
|
||||
|
||||
static UNIVERSAL_DEV_PM_OPS(bma150_pm, bma150_suspend, bma150_resume, NULL);
|
||||
|
||||
static const struct i2c_device_id bma150_id[] = {
|
||||
{ "bma150", 0 },
|
||||
{ "smb380", 0 },
|
||||
{ "bma023", 0 },
|
||||
{ }
|
||||
};
|
||||
|
||||
MODULE_DEVICE_TABLE(i2c, bma150_id);
|
||||
|
||||
static struct i2c_driver bma150_driver = {
|
||||
.driver = {
|
||||
.owner = THIS_MODULE,
|
||||
.name = BMA150_DRIVER,
|
||||
.pm = &bma150_pm,
|
||||
},
|
||||
.class = I2C_CLASS_HWMON,
|
||||
.id_table = bma150_id,
|
||||
.probe = bma150_probe,
|
||||
.remove = __devexit_p(bma150_remove),
|
||||
};
|
||||
|
||||
static int __init BMA150_init(void)
|
||||
{
|
||||
return i2c_add_driver(&bma150_driver);
|
||||
}
|
||||
|
||||
static void __exit BMA150_exit(void)
|
||||
{
|
||||
i2c_del_driver(&bma150_driver);
|
||||
}
|
||||
|
||||
MODULE_AUTHOR("Albert Zhang <xu.zhang@bosch-sensortec.com>");
|
||||
MODULE_DESCRIPTION("BMA150 driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
module_init(BMA150_init);
|
||||
module_exit(BMA150_exit);
|
||||
|
|
@ -0,0 +1,46 @@
|
|||
/*
|
||||
* Copyright (c) 2011 Bosch Sensortec GmbH
|
||||
* Copyright (c) 2011 Unixphere
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* 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, write to the Free Software
|
||||
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#ifndef _BMA150_H_
|
||||
#define _BMA150_H_
|
||||
|
||||
#define BMA150_DRIVER "bma150"
|
||||
|
||||
struct bma150_cfg {
|
||||
bool any_motion_int; /* Set to enable any-motion interrupt */
|
||||
bool hg_int; /* Set to enable high-G interrupt */
|
||||
bool lg_int; /* Set to enable low-G interrupt */
|
||||
unsigned char any_motion_dur; /* Any-motion duration */
|
||||
unsigned char any_motion_thres; /* Any-motion threshold */
|
||||
unsigned char hg_hyst; /* High-G hysterisis */
|
||||
unsigned char hg_dur; /* High-G duration */
|
||||
unsigned char hg_thres; /* High-G threshold */
|
||||
unsigned char lg_hyst; /* Low-G hysterisis */
|
||||
unsigned char lg_dur; /* Low-G duration */
|
||||
unsigned char lg_thres; /* Low-G threshold */
|
||||
unsigned char range; /* BMA0150_RANGE_xxx (in G) */
|
||||
unsigned char bandwidth; /* BMA0150_BW_xxx (in Hz) */
|
||||
};
|
||||
|
||||
struct bma150_platform_data {
|
||||
struct bma150_cfg cfg;
|
||||
int (*irq_gpio_cfg)(void);
|
||||
};
|
||||
|
||||
#endif /* _BMA150_H_ */
|
||||
Loading…
Reference in New Issue