Pavel Machek | 455fbdd | 2008-11-12 13:27:02 -0800 | [diff] [blame] | 1 | /* |
| 2 | * lis3lv02d.h - ST LIS3LV02DL accelerometer driver |
| 3 | * |
| 4 | * Copyright (C) 2007-2008 Yan Burman |
| 5 | * Copyright (C) 2008 Eric Piel |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 20 | */ |
| 21 | |
| 22 | /* |
| 23 | * The actual chip is STMicroelectronics LIS3LV02DL or LIS3LV02DQ that seems to |
| 24 | * be connected via SPI. There exists also several similar chips (such as LIS302DL or |
| 25 | * LIS3L02DQ) but not in the HP laptops and they have slightly different registers. |
Eric Piel | cfce41a | 2009-01-09 16:41:01 -0800 | [diff] [blame] | 26 | * They can also be connected via I²C. |
Pavel Machek | 455fbdd | 2008-11-12 13:27:02 -0800 | [diff] [blame] | 27 | */ |
| 28 | |
| 29 | #define LIS3LV02DL_ID 0x3A /* Also the LIS3LV02DQ */ |
| 30 | #define LIS302DL_ID 0x3B /* Also the LIS202DL! */ |
| 31 | |
| 32 | enum lis3lv02d_reg { |
| 33 | WHO_AM_I = 0x0F, |
| 34 | OFFSET_X = 0x16, |
| 35 | OFFSET_Y = 0x17, |
| 36 | OFFSET_Z = 0x18, |
| 37 | GAIN_X = 0x19, |
| 38 | GAIN_Y = 0x1A, |
| 39 | GAIN_Z = 0x1B, |
| 40 | CTRL_REG1 = 0x20, |
| 41 | CTRL_REG2 = 0x21, |
| 42 | CTRL_REG3 = 0x22, |
| 43 | HP_FILTER_RESET = 0x23, |
| 44 | STATUS_REG = 0x27, |
| 45 | OUTX_L = 0x28, |
| 46 | OUTX_H = 0x29, |
| 47 | OUTY_L = 0x2A, |
| 48 | OUTY_H = 0x2B, |
| 49 | OUTZ_L = 0x2C, |
| 50 | OUTZ_H = 0x2D, |
| 51 | FF_WU_CFG = 0x30, |
| 52 | FF_WU_SRC = 0x31, |
| 53 | FF_WU_ACK = 0x32, |
| 54 | FF_WU_THS_L = 0x34, |
| 55 | FF_WU_THS_H = 0x35, |
| 56 | FF_WU_DURATION = 0x36, |
| 57 | DD_CFG = 0x38, |
| 58 | DD_SRC = 0x39, |
| 59 | DD_ACK = 0x3A, |
| 60 | DD_THSI_L = 0x3C, |
| 61 | DD_THSI_H = 0x3D, |
| 62 | DD_THSE_L = 0x3E, |
| 63 | DD_THSE_H = 0x3F, |
| 64 | }; |
| 65 | |
| 66 | enum lis3lv02d_ctrl1 { |
| 67 | CTRL1_Xen = 0x01, |
| 68 | CTRL1_Yen = 0x02, |
| 69 | CTRL1_Zen = 0x04, |
| 70 | CTRL1_ST = 0x08, |
| 71 | CTRL1_DF0 = 0x10, |
| 72 | CTRL1_DF1 = 0x20, |
| 73 | CTRL1_PD0 = 0x40, |
| 74 | CTRL1_PD1 = 0x80, |
| 75 | }; |
| 76 | enum lis3lv02d_ctrl2 { |
| 77 | CTRL2_DAS = 0x01, |
| 78 | CTRL2_SIM = 0x02, |
| 79 | CTRL2_DRDY = 0x04, |
| 80 | CTRL2_IEN = 0x08, |
| 81 | CTRL2_BOOT = 0x10, |
| 82 | CTRL2_BLE = 0x20, |
| 83 | CTRL2_BDU = 0x40, /* Block Data Update */ |
| 84 | CTRL2_FS = 0x80, /* Full Scale selection */ |
| 85 | }; |
| 86 | |
| 87 | |
| 88 | enum lis3lv02d_ctrl3 { |
| 89 | CTRL3_CFS0 = 0x01, |
| 90 | CTRL3_CFS1 = 0x02, |
| 91 | CTRL3_FDS = 0x10, |
| 92 | CTRL3_HPFF = 0x20, |
| 93 | CTRL3_HPDD = 0x40, |
| 94 | CTRL3_ECK = 0x80, |
| 95 | }; |
| 96 | |
| 97 | enum lis3lv02d_status_reg { |
| 98 | STATUS_XDA = 0x01, |
| 99 | STATUS_YDA = 0x02, |
| 100 | STATUS_ZDA = 0x04, |
| 101 | STATUS_XYZDA = 0x08, |
| 102 | STATUS_XOR = 0x10, |
| 103 | STATUS_YOR = 0x20, |
| 104 | STATUS_ZOR = 0x40, |
| 105 | STATUS_XYZOR = 0x80, |
| 106 | }; |
| 107 | |
| 108 | enum lis3lv02d_ff_wu_cfg { |
| 109 | FF_WU_CFG_XLIE = 0x01, |
| 110 | FF_WU_CFG_XHIE = 0x02, |
| 111 | FF_WU_CFG_YLIE = 0x04, |
| 112 | FF_WU_CFG_YHIE = 0x08, |
| 113 | FF_WU_CFG_ZLIE = 0x10, |
| 114 | FF_WU_CFG_ZHIE = 0x20, |
| 115 | FF_WU_CFG_LIR = 0x40, |
| 116 | FF_WU_CFG_AOI = 0x80, |
| 117 | }; |
| 118 | |
| 119 | enum lis3lv02d_ff_wu_src { |
| 120 | FF_WU_SRC_XL = 0x01, |
| 121 | FF_WU_SRC_XH = 0x02, |
| 122 | FF_WU_SRC_YL = 0x04, |
| 123 | FF_WU_SRC_YH = 0x08, |
| 124 | FF_WU_SRC_ZL = 0x10, |
| 125 | FF_WU_SRC_ZH = 0x20, |
| 126 | FF_WU_SRC_IA = 0x40, |
| 127 | }; |
| 128 | |
| 129 | enum lis3lv02d_dd_cfg { |
| 130 | DD_CFG_XLIE = 0x01, |
| 131 | DD_CFG_XHIE = 0x02, |
| 132 | DD_CFG_YLIE = 0x04, |
| 133 | DD_CFG_YHIE = 0x08, |
| 134 | DD_CFG_ZLIE = 0x10, |
| 135 | DD_CFG_ZHIE = 0x20, |
| 136 | DD_CFG_LIR = 0x40, |
| 137 | DD_CFG_IEND = 0x80, |
| 138 | }; |
| 139 | |
| 140 | enum lis3lv02d_dd_src { |
| 141 | DD_SRC_XL = 0x01, |
| 142 | DD_SRC_XH = 0x02, |
| 143 | DD_SRC_YL = 0x04, |
| 144 | DD_SRC_YH = 0x08, |
| 145 | DD_SRC_ZL = 0x10, |
| 146 | DD_SRC_ZH = 0x20, |
| 147 | DD_SRC_IA = 0x40, |
| 148 | }; |
| 149 | |
Eric Piel | cfce41a | 2009-01-09 16:41:01 -0800 | [diff] [blame] | 150 | struct axis_conversion { |
| 151 | s8 x; |
| 152 | s8 y; |
| 153 | s8 z; |
| 154 | }; |
| 155 | |
| 156 | struct acpi_lis3lv02d { |
| 157 | struct acpi_device *device; /* The ACPI device */ |
| 158 | acpi_status (*init) (acpi_handle handle); |
| 159 | acpi_status (*write) (acpi_handle handle, int reg, u8 val); |
| 160 | acpi_status (*read) (acpi_handle handle, int reg, u8 *ret); |
| 161 | |
| 162 | struct input_dev *idev; /* input device */ |
| 163 | struct task_struct *kthread; /* kthread for input */ |
| 164 | struct mutex lock; |
| 165 | struct platform_device *pdev; /* platform device */ |
| 166 | atomic_t count; /* interrupt count after last read */ |
| 167 | int xcalib; /* calibrated null value for x */ |
| 168 | int ycalib; /* calibrated null value for y */ |
| 169 | int zcalib; /* calibrated null value for z */ |
| 170 | unsigned char is_on; /* whether the device is on or off */ |
| 171 | unsigned char usage; /* usage counter */ |
| 172 | struct axis_conversion ac; /* hw -> logical axis */ |
| 173 | }; |
| 174 | |
| 175 | int lis3lv02d_init_device(struct acpi_lis3lv02d *dev); |
| 176 | int lis3lv02d_joystick_enable(void); |
| 177 | void lis3lv02d_joystick_disable(void); |
| 178 | void lis3lv02d_poweroff(acpi_handle handle); |
| 179 | void lis3lv02d_poweron(acpi_handle handle); |
| 180 | int lis3lv02d_remove_fs(void); |
| 181 | |
| 182 | extern struct acpi_lis3lv02d adev; |