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Diffstat (limited to 'etzkx.h')
| -rw-r--r-- | etzkx.h | 159 |
1 files changed, 159 insertions, 0 deletions
@@ -0,0 +1,159 @@ +/* + * etzkz: lisn3dsh/kxtnk 3d accelerometer driver + * + * Copyright (C) 2013 Andi Shyti <andi@etezian.org> + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef __ETZKX_H__ +#define __ETZKX_H__ + +#include <linux/i2c-kona.h> + +#define ETZKX_G_RANGE_DONT_CARE 0 +#define ETZKX_G_RANGE_2G 2 +#define ETZKX_G_RANGE_4G 4 +#define ETZKX_G_RANGE_6G 6 +#define ETZKX_G_RANGE_8G 8 + +#define ETZKX_ODR_3_125 0x00 +#define ETZKX_ODR_6_25 0x01 +#define ETZKX_ODR_12_5 0x02 +#define ETZKX_ODR_25 0x03 +#define ETZKX_ODR_50 0x04 +#define ETZKX_ODR_100 0x05 +#define ETZKX_ODR_400 0x06 +#define ETZKX_ODR_1600 0x07 +#define ETZKX_ODR_DONT_CARE 0xFF + +#define ETZKX_STM_ID_NO_STM 0 +#define ETZKX_STM_ID_TIMING 1 +#define ETZKX_STM_ID_ORIENTATION 2 +#define ETZKX_STM_ID_DOUBLE_TAP 3 +#define ETZKX_STM_ID_WAKEUP 4 +#define ETZKX_STM_ID_V_DOUBLE_TAP 5 + +#define ETZKX_DEFAULT_G_RANGE ETZKX_G_RANGE_4G +#define ETZKX_DEFAULT_ODR ETZKX_ODR_50 + +/* ioctl-number: 'x' 00-2F (32 commands) */ +#define ETZKX_IOCTL_NUM ('x') + +struct etzkz_stm_data { + s32 id; + union { + /* double tap */ + struct { + u8 x; + u8 y; + u8 z; + u8 peak; + }; + /* orientation */ + struct { + u16 portrait; + u16 landscape; + }; + /* wake up */ + struct { + u16 wakeup; + u16 sleep; + }; + /* v double tap */ + struct { + u32 vtap; + }; + /* running algos */ + struct { + u16 stm1; + u16 stm2; + }; + } algo; +}; + +/* etzkz ioctl command types */ +#define ETZKXIO_ENABLE 0x01 +#define ETZKXIO_DISABLE 0x02 +#define ETZKXIO_STATE 0x03 +/* + * etzkz ioctl commands + * - first 6 bits identify the algorithm id + * - last 2 bits identify the operation type on the algorithm + */ +#define ETZKXIO_ENABLE_TIMING _IO(ETZKX_IOCTL_NUM, \ + (ETZKX_STM_ID_TIMING << 2) | \ + ETZKXIO_ENABLE) +#define ETZKXIO_DISABLE_TIMING _IO(ETZKX_IOCTL_NUM, \ + (ETZKX_STM_ID_TIMING << 2) | \ + ETZKXIO_DISABLE) +#define ETZKXIO_ENABLE_ORIENTATION _IO(ETZKX_IOCTL_NUM, \ + (ETZKX_STM_ID_ORIENTATION << 2) | \ + ETZKXIO_ENABLE) +#define ETZKXIO_DISABLE_ORIENTATION _IO(ETZKX_IOCTL_NUM, \ + (ETZKX_STM_ID_ORIENTATION << 2) | \ + ETZKXIO_DISABLE) +#define ETZKXIO_ENABLE_WAKEUP _IO(ETZKX_IOCTL_NUM, \ + (ETZKX_STM_ID_WAKEUP << 2) | \ + ETZKXIO_ENABLE) +#define ETZKXIO_DISABLE_WAKEUP _IO(ETZKX_IOCTL_NUM, \ + (ETZKX_STM_ID_WAKEUP << 2) | \ + ETZKXIO_DISABLE) +#define ETZKXIO_ENABLE_V_DOUBLE_TAP _IO(ETZKX_IOCTL_NUM, \ + (ETZKX_STM_ID_V_DOUBLE_TAP << 2) | \ + ETZKXIO_ENABLE) +#define ETZKXIO_DISABLE_V_DOUBLE_TAP _IO(ETZKX_IOCTL_NUM, \ + (ETZKX_STM_ID_V_DOUBLE_TAP << 2) | \ + ETZKXIO_DISABLE) +#define ETZKXIO_WHICH_ORIENTATION _IOR(ETZKX_IOCTL_NUM, \ + (ETZKX_STM_ID_ORIENTATION << 2) | \ + ETZKXIO_STATE, \ + struct etzkz_stm_data *) +#define ETZKXIO_ENABLE_DOUBLE_TAP _IO(ETZKX_IOCTL_NUM, \ + (ETZKX_STM_ID_DOUBLE_TAP << 2) | \ + ETZKXIO_ENABLE) +#define ETZKXIO_DISABLE_DOUBLE_TAP _IO(ETZKX_IOCTL_NUM, \ + (ETZKX_STM_ID_DOUBLE_TAP << 2) | \ + ETZKXIO_DISABLE) +#define ETZKXIO_RUNNING_ALGO _IOR(ETZKX_IOCTL_NUM, \ + (0x0A << 2) | ETZKXIO_STATE, \ + struct etzkz_stm_data *) +#define ETZKXIO_INSTANT_ORIENTATION _IOR(ETZKX_IOCTL_NUM, \ + (0x0B << 2) | ETZKXIO_STATE, \ + struct etzkz_stm_data *) + +#define ETZKX_DEV_NAME "etzkz" +#define ETZKX_DRV_VERSION 5 + +struct etzkz_platform_data { + int (*init)(void); + void (*release)(void); + + u8 x_map; + u8 y_map; + u8 z_map; + + u8 x_negate; + u8 y_negate; + u8 z_negate; + + u8 odr; + u8 range; + + u16 irq1; + u16 irq2; +}; + +#endif |