diff options
| -rw-r--r-- | drivers/hwmon/Makefile | 2 | ||||
| -rw-r--r-- | drivers/hwmon/hp_accel.c | 265 | ||||
| -rw-r--r-- | drivers/hwmon/lis3lv02d.c | 273 | ||||
| -rw-r--r-- | drivers/hwmon/lis3lv02d.h | 35 |
4 files changed, 324 insertions, 251 deletions
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index 8fd124eff64..19cb1ace3eb 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -49,7 +49,7 @@ obj-$(CONFIG_SENSORS_IBMAEM) += ibmaem.o obj-$(CONFIG_SENSORS_IBMPEX) += ibmpex.o obj-$(CONFIG_SENSORS_IT87) += it87.o obj-$(CONFIG_SENSORS_K8TEMP) += k8temp.o -obj-$(CONFIG_SENSORS_LIS3LV02D) += lis3lv02d.o +obj-$(CONFIG_SENSORS_LIS3LV02D) += lis3lv02d.o hp_accel.o obj-$(CONFIG_SENSORS_LM63) += lm63.o obj-$(CONFIG_SENSORS_LM70) += lm70.o obj-$(CONFIG_SENSORS_LM75) += lm75.o diff --git a/drivers/hwmon/hp_accel.c b/drivers/hwmon/hp_accel.c new file mode 100644 index 00000000000..bf8d4058057 --- /dev/null +++ b/drivers/hwmon/hp_accel.c @@ -0,0 +1,265 @@ +/* + * hp_accel.c - Interface between LIS3LV02DL driver and HP ACPI BIOS + * + * Copyright (C) 2007-2008 Yan Burman + * Copyright (C) 2008 Eric Piel + * Copyright (C) 2008 Pavel Machek + * + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/dmi.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/platform_device.h> +#include <linux/interrupt.h> +#include <linux/input.h> +#include <linux/kthread.h> +#include <linux/semaphore.h> +#include <linux/delay.h> +#include <linux/wait.h> +#include <linux/poll.h> +#include <linux/freezer.h> +#include <linux/version.h> +#include <linux/uaccess.h> +#include <acpi/acpi_drivers.h> +#include <asm/atomic.h> +#include "lis3lv02d.h" + +#define DRIVER_NAME "lis3lv02d" +#define ACPI_MDPS_CLASS "accelerometer" + + +/* For automatic insertion of the module */ +static struct acpi_device_id lis3lv02d_device_ids[] = { + {"HPQ0004", 0}, /* HP Mobile Data Protection System PNP */ + {"", 0}, +}; +MODULE_DEVICE_TABLE(acpi, lis3lv02d_device_ids); + + +/** + * lis3lv02d_acpi_init - ACPI _INI method: initialize the device. + * @handle: the handle of the device + * + * Returns AE_OK on success. + */ +acpi_status lis3lv02d_acpi_init(acpi_handle handle) +{ + return acpi_evaluate_object(handle, METHOD_NAME__INI, NULL, NULL); +} + +/** + * lis3lv02d_acpi_read - ACPI ALRD method: read a register + * @handle: the handle of the device + * @reg: the register to read + * @ret: result of the operation + * + * Returns AE_OK on success. + */ +acpi_status lis3lv02d_acpi_read(acpi_handle handle, int reg, u8 *ret) +{ + union acpi_object arg0 = { ACPI_TYPE_INTEGER }; + struct acpi_object_list args = { 1, &arg0 }; + unsigned long long lret; + acpi_status status; + + arg0.integer.value = reg; + + status = acpi_evaluate_integer(handle, "ALRD", &args, &lret); + *ret = lret; + return status; +} + +/** + * lis3lv02d_acpi_write - ACPI ALWR method: write to a register + * @handle: the handle of the device + * @reg: the register to write to + * @val: the value to write + * + * Returns AE_OK on success. + */ +acpi_status lis3lv02d_acpi_write(acpi_handle handle, int reg, u8 val) +{ + unsigned long long ret; /* Not used when writting */ + union acpi_object in_obj[2]; + struct acpi_object_list args = { 2, in_obj }; + + in_obj[0].type = ACPI_TYPE_INTEGER; + in_obj[0].integer.value = reg; + in_obj[1].type = ACPI_TYPE_INTEGER; + in_obj[1].integer.value = val; + + return acpi_evaluate_integer(handle, "ALWR", &args, &ret); +} + +static int lis3lv02d_dmi_matched(const struct dmi_system_id *dmi) +{ + adev.ac = *((struct axis_conversion *)dmi->driver_data); + printk(KERN_INFO DRIVER_NAME ": hardware type %s found.\n", dmi->ident); + + return 1; +} + +/* Represents, for each axis seen by userspace, the corresponding hw axis (+1). + * If the value is negative, the opposite of the hw value is used. */ +static struct axis_conversion lis3lv02d_axis_normal = {1, 2, 3}; +static struct axis_conversion lis3lv02d_axis_y_inverted = {1, -2, 3}; +static struct axis_conversion lis3lv02d_axis_x_inverted = {-1, 2, 3}; +static struct axis_conversion lis3lv02d_axis_z_inverted = {1, 2, -3}; +static struct axis_conversion lis3lv02d_axis_xy_rotated_left = {-2, 1, 3}; +static struct axis_conversion lis3lv02d_axis_xy_swap_inverted = {-2, -1, 3}; + +#define AXIS_DMI_MATCH(_ident, _name, _axis) { \ + .ident = _ident, \ + .callback = lis3lv02d_dmi_matched, \ + .matches = { \ + DMI_MATCH(DMI_PRODUCT_NAME, _name) \ + }, \ + .driver_data = &lis3lv02d_axis_##_axis \ +} +static struct dmi_system_id lis3lv02d_dmi_ids[] = { + /* product names are truncated to match all kinds of a same model */ + AXIS_DMI_MATCH("NC64x0", "HP Compaq nc64", x_inverted), + AXIS_DMI_MATCH("NC84x0", "HP Compaq nc84", z_inverted), + AXIS_DMI_MATCH("NX9420", "HP Compaq nx9420", x_inverted), + AXIS_DMI_MATCH("NW9440", "HP Compaq nw9440", x_inverted), + AXIS_DMI_MATCH("NC2510", "HP Compaq 2510", y_inverted), + AXIS_DMI_MATCH("NC8510", "HP Compaq 8510", xy_swap_inverted), + AXIS_DMI_MATCH("HP2133", "HP 2133", xy_rotated_left), + { NULL, } +/* Laptop models without axis info (yet): + * "NC651xx" "HP Compaq 651" + * "NC671xx" "HP Compaq 671" + * "NC6910" "HP Compaq 6910" + * HP Compaq 8710x Notebook PC / Mobile Workstation + * "NC2400" "HP Compaq nc2400" + * "NX74x0" "HP Compaq nx74" + * "NX6325" "HP Compaq nx6325" + * "NC4400" "HP Compaq nc4400" + */ +}; + + +static int lis3lv02d_add(struct acpi_device *device) +{ + u8 val; + + if (!device) + return -EINVAL; + + adev.device = device; + adev.init = lis3lv02d_acpi_init; + adev.read = lis3lv02d_acpi_read; + adev.write = lis3lv02d_acpi_write; + strcpy(acpi_device_name(device), DRIVER_NAME); + strcpy(acpi_device_class(device), ACPI_MDPS_CLASS); + device->driver_data = &adev; + + lis3lv02d_acpi_read(device->handle, WHO_AM_I, &val); + if ((val != LIS3LV02DL_ID) && (val != LIS302DL_ID)) { + printk(KERN_ERR DRIVER_NAME + ": Accelerometer chip not LIS3LV02D{L,Q}\n"); + } + + /* If possible use a "standard" axes order */ + if (dmi_check_system(lis3lv02d_dmi_ids) == 0) { + printk(KERN_INFO DRIVER_NAME ": laptop model unknown, " + "using default axes configuration\n"); + adev.ac = lis3lv02d_axis_normal; + } + + return lis3lv02d_init_device(&adev); +} + +static int lis3lv02d_remove(struct acpi_device *device, int type) +{ + if (!device) + return -EINVAL; + + lis3lv02d_joystick_disable(); + lis3lv02d_poweroff(device->handle); + + return lis3lv02d_remove_fs(); +} + + +#ifdef CONFIG_PM +static int lis3lv02d_suspend(struct acpi_device *device, pm_message_t state) +{ + /* make sure the device is off when we suspend */ + lis3lv02d_poweroff(device->handle); + return 0; +} + +static int lis3lv02d_resume(struct acpi_device *device) +{ + /* put back the device in the right state (ACPI might turn it on) */ + mutex_lock(&adev.lock); + if (adev.usage > 0) + lis3lv02d_poweron(device->handle); + else + lis3lv02d_poweroff(device->handle); + mutex_unlock(&adev.lock); + return 0; +} +#else +#define lis3lv02d_suspend NULL +#define lis3lv02d_resume NULL +#endif + +/* For the HP MDPS aka 3D Driveguard */ +static struct acpi_driver lis3lv02d_driver = { + .name = DRIVER_NAME, + .class = ACPI_MDPS_CLASS, + .ids = lis3lv02d_device_ids, + .ops = { + .add = lis3lv02d_add, + .remove = lis3lv02d_remove, + .suspend = lis3lv02d_suspend, + .resume = lis3lv02d_resume, + } +}; + +static int __init lis3lv02d_init_module(void) +{ + int ret; + + if (acpi_disabled) + return -ENODEV; + + ret = acpi_bus_register_driver(&lis3lv02d_driver); + if (ret < 0) + return ret; + + printk(KERN_INFO DRIVER_NAME " driver loaded.\n"); + + return 0; +} + +static void __exit lis3lv02d_exit_module(void) +{ + acpi_bus_unregister_driver(&lis3lv02d_driver); +} + +MODULE_DESCRIPTION("Glue between LIS3LV02Dx and HP ACPI BIOS"); +MODULE_AUTHOR("Yan Burman, Eric Piel, Pavel Machek"); +MODULE_LICENSE("GPL"); + +module_init(lis3lv02d_init_module); +module_exit(lis3lv02d_exit_module); + diff --git a/drivers/hwmon/lis3lv02d.c b/drivers/hwmon/lis3lv02d.c index c002144c76b..219d2d0d5a6 100644 --- a/drivers/hwmon/lis3lv02d.c +++ b/drivers/hwmon/lis3lv02d.c @@ -3,6 +3,7 @@ * * Copyright (C) 2007-2008 Yan Burman * Copyright (C) 2008 Eric Piel + * Copyright (C) 2008 Pavel Machek * * 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 @@ -39,7 +40,6 @@ #include "lis3lv02d.h" #define DRIVER_NAME "lis3lv02d" -#define ACPI_MDPS_CLASS "accelerometer" /* joystick device poll interval in milliseconds */ #define MDPS_POLL_INTERVAL 50 @@ -55,100 +55,17 @@ /* Maximum value our axis may get for the input device (signed 12 bits) */ #define MDPS_MAX_VAL 2048 -struct axis_conversion { - s8 x; - s8 y; - s8 z; -}; - -struct acpi_lis3lv02d { - struct acpi_device *device; /* The ACPI device */ - struct input_dev *idev; /* input device */ - struct task_struct *kthread; /* kthread for input */ - struct mutex lock; - struct platform_device *pdev; /* platform device */ - atomic_t count; /* interrupt count after last read */ - int xcalib; /* calibrated null value for x */ - int ycalib; /* calibrated null value for y */ - int zcalib; /* calibrated null value for z */ - unsigned char is_on; /* whether the device is on or off */ - unsigned char usage; /* usage counter */ - struct axis_conversion ac; /* hw -> logical axis */ -}; +struct acpi_lis3lv02d adev; +EXPORT_SYMBOL_GPL(adev); -static struct acpi_lis3lv02d adev; - -static int lis3lv02d_remove_fs(void); static int lis3lv02d_add_fs(struct acpi_device *device); -/* For automatic insertion of the module */ -static struct acpi_device_id lis3lv02d_device_ids[] = { - {"HPQ0004", 0}, /* HP Mobile Data Protection System PNP */ - {"", 0}, -}; -MODULE_DEVICE_TABLE(acpi, lis3lv02d_device_ids); - -/** - * lis3lv02d_acpi_init - ACPI _INI method: initialize the device. - * @handle: the handle of the device - * - * Returns AE_OK on success. - */ -static inline acpi_status lis3lv02d_acpi_init(acpi_handle handle) -{ - return acpi_evaluate_object(handle, METHOD_NAME__INI, NULL, NULL); -} - -/** - * lis3lv02d_acpi_read - ACPI ALRD method: read a register - * @handle: the handle of the device - * @reg: the register to read - * @ret: result of the operation - * - * Returns AE_OK on success. - */ -static acpi_status lis3lv02d_acpi_read(acpi_handle handle, int reg, u8 *ret) -{ - union acpi_object arg0 = { ACPI_TYPE_INTEGER }; - struct acpi_object_list args = { 1, &arg0 }; - unsigned long long lret; - acpi_status status; - - arg0.integer.value = reg; - - status = acpi_evaluate_integer(handle, "ALRD", &args, &lret); - *ret = lret; - return status; -} - -/** - * lis3lv02d_acpi_write - ACPI ALWR method: write to a register - * @handle: the handle of the device - * @reg: the register to write to - * @val: the value to write - * - * Returns AE_OK on success. - */ -static acpi_status lis3lv02d_acpi_write(acpi_handle handle, int reg, u8 val) -{ - unsigned long long ret; /* Not used when writting */ - union acpi_object in_obj[2]; - struct acpi_object_list args = { 2, in_obj }; - - in_obj[0].type = ACPI_TYPE_INTEGER; - in_obj[0].integer.value = reg; - in_obj[1].type = ACPI_TYPE_INTEGER; - in_obj[1].integer.value = val; - - return acpi_evaluate_integer(handle, "ALWR", &args, &ret); -} - static s16 lis3lv02d_read_16(acpi_handle handle, int reg) { u8 lo, hi; - lis3lv02d_acpi_read(handle, reg, &lo); - lis3lv02d_acpi_read(handle, reg + 1, &hi); + adev.read(handle, reg, &lo); + adev.read(handle, reg + 1, &hi); /* In "12 bit right justified" mode, bit 6, bit 7, bit 8 = bit 5 */ return (s16)((hi << 8) | lo); } @@ -190,54 +107,31 @@ static void lis3lv02d_get_xyz(acpi_handle handle, int *x, int *y, int *z) *z = lis3lv02d_get_axis(adev.ac.z, position); } -static inline void lis3lv02d_poweroff(acpi_handle handle) +void lis3lv02d_poweroff(acpi_handle handle) { adev.is_on = 0; /* disable X,Y,Z axis and power down */ - lis3lv02d_acpi_write(handle, CTRL_REG1, 0x00); + adev.write(handle, CTRL_REG1, 0x00); } +EXPORT_SYMBOL_GPL(lis3lv02d_poweroff); -static void lis3lv02d_poweron(acpi_handle handle) +void lis3lv02d_poweron(acpi_handle handle) { u8 val; adev.is_on = 1; - lis3lv02d_acpi_init(handle); - lis3lv02d_acpi_write(handle, FF_WU_CFG, 0); + adev.init(handle); + adev.write(handle, FF_WU_CFG, 0); /* * BDU: LSB and MSB values are not updated until both have been read. * So the value read will always be correct. * IEN: Interrupt for free-fall and DD, not for data-ready. */ - lis3lv02d_acpi_read(handle, CTRL_REG2, &val); + adev.read(handle, CTRL_REG2, &val); val |= CTRL2_BDU | CTRL2_IEN; - lis3lv02d_acpi_write(handle, CTRL_REG2, val); -} - -#ifdef CONFIG_PM -static int lis3lv02d_suspend(struct acpi_device *device, pm_message_t state) -{ - /* make sure the device is off when we suspend */ - lis3lv02d_poweroff(device->handle); - return 0; -} - -static int lis3lv02d_resume(struct acpi_device *device) -{ - /* put back the device in the right state (ACPI might turn it on) */ - mutex_lock(&adev.lock); - if (adev.usage > 0) - lis3lv02d_poweron(device->handle); - else - lis3lv02d_poweroff(device->handle); - mutex_unlock(&adev.lock); - return 0; + adev.write(handle, CTRL_REG2, val); } -#else -#define lis3lv02d_suspend NULL -#define lis3lv02d_resume NULL -#endif - +EXPORT_SYMBOL_GPL(lis3lv02d_poweron); /* * To be called before starting to use the device. It makes sure that the @@ -315,7 +209,7 @@ static inline void lis3lv02d_calibrate_joystick(void) lis3lv02d_get_xyz(adev.device->handle, &adev.xcalib, &adev.ycalib, &adev.zcalib); } -static int lis3lv02d_joystick_enable(void) +int lis3lv02d_joystick_enable(void) { int err; @@ -349,8 +243,9 @@ static int lis3lv02d_joystick_enable(void) return err; } +EXPORT_SYMBOL_GPL(lis3lv02d_joystick_enable); -static void lis3lv02d_joystick_disable(void) +void lis3lv02d_joystick_disable(void) { if (!adev.idev) return; @@ -358,13 +253,13 @@ static void lis3lv02d_joystick_disable(void) input_unregister_device(adev.idev); adev.idev = NULL; } - +EXPORT_SYMBOL_GPL(lis3lv02d_joystick_disable); /* * Initialise the accelerometer and the various subsystems. * Should be rather independant of the bus system. */ -static int lis3lv02d_init_device(struct acpi_lis3lv02d *dev) +int lis3lv02d_init_device(struct acpi_lis3lv02d *dev) { mutex_init(&dev->lock); lis3lv02d_add_fs(dev->device); @@ -376,93 +271,7 @@ static int lis3lv02d_init_device(struct acpi_lis3lv02d *dev) lis3lv02d_decrease_use(dev); return 0; } - -static int lis3lv02d_dmi_matched(const struct dmi_system_id *dmi) -{ - adev.ac = *((struct axis_conversion *)dmi->driver_data); - printk(KERN_INFO DRIVER_NAME ": hardware type %s found.\n", dmi->ident); - - return 1; -} - -/* Represents, for each axis seen by userspace, the corresponding hw axis (+1). - * If the value is negative, the opposite of the hw value is used. */ -static struct axis_conversion lis3lv02d_axis_normal = {1, 2, 3}; -static struct axis_conversion lis3lv02d_axis_y_inverted = {1, -2, 3}; -static struct axis_conversion lis3lv02d_axis_x_inverted = {-1, 2, 3}; -static struct axis_conversion lis3lv02d_axis_z_inverted = {1, 2, -3}; -static struct axis_conversion lis3lv02d_axis_xy_rotated_left = {-2, 1, 3}; -static struct axis_conversion lis3lv02d_axis_xy_swap_inverted = {-2, -1, 3}; - -#define AXIS_DMI_MATCH(_ident, _name, _axis) { \ - .ident = _ident, \ - .callback = lis3lv02d_dmi_matched, \ - .matches = { \ - DMI_MATCH(DMI_PRODUCT_NAME, _name) \ - }, \ - .driver_data = &lis3lv02d_axis_##_axis \ -} -static struct dmi_system_id lis3lv02d_dmi_ids[] = { - /* product names are truncated to match all kinds of a same model */ - AXIS_DMI_MATCH("NC64x0", "HP Compaq nc64", x_inverted), - AXIS_DMI_MATCH("NC84x0", "HP Compaq nc84", z_inverted), - AXIS_DMI_MATCH("NX9420", "HP Compaq nx9420", x_inverted), - AXIS_DMI_MATCH("NW9440", "HP Compaq nw9440", x_inverted), - AXIS_DMI_MATCH("NC2510", "HP Compaq 2510", y_inverted), - AXIS_DMI_MATCH("NC8510", "HP Compaq 8510", xy_swap_inverted), - AXIS_DMI_MATCH("HP2133", "HP 2133", xy_rotated_left), - { NULL, } -/* Laptop models without axis info (yet): - * "NC651xx" "HP Compaq 651" - * "NC671xx" "HP Compaq 671" - * "NC6910" "HP Compaq 6910" - * HP Compaq 8710x Notebook PC / Mobile Workstation - * "NC2400" "HP Compaq nc2400" - * "NX74x0" "HP Compaq nx74" - * "NX6325" "HP Compaq nx6325" - * "NC4400" "HP Compaq nc4400" - */ -}; - -static int lis3lv02d_add(struct acpi_device *device) -{ - u8 val; - - if (!device) - return -EINVAL; - - adev.device = device; - strcpy(acpi_device_name(device), DRIVER_NAME); - strcpy(acpi_device_class(device), ACPI_MDPS_CLASS); - device->driver_data = &adev; - - lis3lv02d_acpi_read(device->handle, WHO_AM_I, &val); - if ((val != LIS3LV02DL_ID) && (val != LIS302DL_ID)) { - printk(KERN_ERR DRIVER_NAME - ": Accelerometer chip not LIS3LV02D{L,Q}\n"); - } - - /* If possible use a "standard" axes order */ - if (dmi_check_system(lis3lv02d_dmi_ids) == 0) { - printk(KERN_INFO DRIVER_NAME ": laptop model unknown, " - "using default axes configuration\n"); - adev.ac = lis3lv02d_axis_normal; - } - - return lis3lv02d_init_device(&adev); -} - -static int lis3lv02d_remove(struct acpi_device *device, int type) -{ - if (!device) - return -EINVAL; - - lis3lv02d_joystick_disable(); - lis3lv02d_poweroff(device->handle); - - return lis3lv02d_remove_fs(); -} - +EXPORT_SYMBOL_GPL(lis3lv02d_init_device); /* Sysfs stuff */ static ssize_t lis3lv02d_position_show(struct device *dev, @@ -501,7 +310,7 @@ static ssize_t lis3lv02d_rate_show(struct device *dev, int val; lis3lv02d_increase_use(&adev); - lis3lv02d_acpi_read(adev.device->handle, CTRL_REG1, &ctrl); + adev.read(adev.device->handle, CTRL_REG1, &ctrl); lis3lv02d_decrease_use(&adev); val = (ctrl & (CTRL1_DF0 | CTRL1_DF1)) >> 4; return sprintf(buf, "%d\n", lis3lv02dl_df_val[val]); @@ -523,6 +332,7 @@ static struct attribute_group lis3lv02d_attribute_group = { .attrs = lis3lv02d_attributes }; + static int lis3lv02d_add_fs(struct acpi_device *device) { adev.pdev = platform_device_register_simple(DRIVER_NAME, -1, NULL, 0); @@ -532,50 +342,15 @@ static int lis3lv02d_add_fs(struct acpi_device *device) return sysfs_create_group(&adev.pdev->dev.kobj, &lis3lv02d_attribute_group); } -static int lis3lv02d_remove_fs(void) +int lis3lv02d_remove_fs(void) { sysfs_remove_group(&adev.pdev->dev.kobj, &lis3lv02d_attribute_group); platform_device_unregister(adev.pdev); return 0; } - -/* For the HP MDPS aka 3D Driveguard */ -static struct acpi_driver lis3lv02d_driver = { - .name = DRIVER_NAME, - .class = ACPI_MDPS_CLASS, - .ids = lis3lv02d_device_ids, - .ops = { - .add = lis3lv02d_add, - .remove = lis3lv02d_remove, - .suspend = lis3lv02d_suspend, - .resume = lis3lv02d_resume, - } -}; - -static int __init lis3lv02d_init_module(void) -{ - int ret; - - if (acpi_disabled) - return -ENODEV; - - ret = acpi_bus_register_driver(&lis3lv02d_driver); - if (ret < 0) - return ret; - - printk(KERN_INFO DRIVER_NAME " driver loaded.\n"); - - return 0; -} - -static void __exit lis3lv02d_exit_module(void) -{ - acpi_bus_unregister_driver(&lis3lv02d_driver); -} +EXPORT_SYMBOL_GPL(lis3lv02d_remove_fs); MODULE_DESCRIPTION("ST LIS3LV02Dx three-axis digital accelerometer driver"); MODULE_AUTHOR("Yan Burman and Eric Piel"); MODULE_LICENSE("GPL"); -module_init(lis3lv02d_init_module); -module_exit(lis3lv02d_exit_module); diff --git a/drivers/hwmon/lis3lv02d.h b/drivers/hwmon/lis3lv02d.h index 330cfc60e94..223f1c0763b 100644 --- a/drivers/hwmon/lis3lv02d.h +++ b/drivers/hwmon/lis3lv02d.h @@ -23,7 +23,7 @@ * The actual chip is STMicroelectronics LIS3LV02DL or LIS3LV02DQ that seems to * be connected via SPI. There exists also several similar chips (such as LIS302DL or * LIS3L02DQ) but not in the HP laptops and they have slightly different registers. - * They can also be connected via I²C. + * They can also be connected via I²C. */ #define LIS3LV02DL_ID 0x3A /* Also the LIS3LV02DQ */ @@ -147,3 +147,36 @@ enum lis3lv02d_dd_src { DD_SRC_IA = 0x40, }; +struct axis_conversion { + s8 x; + s8 y; + s8 z; +}; + +struct acpi_lis3lv02d { + struct acpi_device *device; /* The ACPI device */ + acpi_status (*init) (acpi_handle handle); + acpi_status (*write) (acpi_handle handle, int reg, u8 val); + acpi_status (*read) (acpi_handle handle, int reg, u8 *ret); + + struct input_dev *idev; /* input device */ + struct task_struct *kthread; /* kthread for input */ + struct mutex lock; + struct platform_device *pdev; /* platform device */ + atomic_t count; /* interrupt count after last read */ + int xcalib; /* calibrated null value for x */ + int ycalib; /* calibrated null value for y */ + int zcalib; /* calibrated null value for z */ + unsigned char is_on; /* whether the device is on or off */ + unsigned char usage; /* usage counter */ + struct axis_conversion ac; /* hw -> logical axis */ +}; + +int lis3lv02d_init_device(struct acpi_lis3lv02d *dev); +int lis3lv02d_joystick_enable(void); +void lis3lv02d_joystick_disable(void); +void lis3lv02d_poweroff(acpi_handle handle); +void lis3lv02d_poweron(acpi_handle handle); +int lis3lv02d_remove_fs(void); + +extern struct acpi_lis3lv02d adev; |