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Date: Sat, 10 Jan 2009 00:00:03 +0100
From: Pavel Machek <pavel@...e.cz>
To: akpm@...ux-foundation.org,
kernel list <linux-kernel@...r.kernel.org>
Cc: eric.piel@...mplin-utc.net, mm-commits@...r.kernel.org
Subject: Re: - lis3lv02d-separate-the-core-from-hp-acpi-api.patch removed
from -mm tree
Hi!
> The patch titled
> LIS3LV02D: separate the core from HP ACPI API
> has been removed from the -mm tree. Its filename was
> lis3lv02d-separate-the-core-from-hp-acpi-api.patch
>
> This patch was dropped because other changes were merged, which wrecked this patch
I'm confused. The other patch collided with leds/Makefile changes, but
this one applies cleanly over Linus' git (updated today)... or am I
doing something wrong? Could it still be pushed to Linus?
Pavel
> The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
>
> ------------------------------------------------------
> Subject: LIS3LV02D: separate the core from HP ACPI API
> From: Eric Piel <eric.piel@...mplin-utc.net>
>
> The sensor can be accessed via various buses. In particular, SPI, I²C
> and, on HP laptops, via a specific ACPI API (the only one currently
> supported). Separate this latest platform from the core of the sensor
> driver to allow support for the other bus type. The second, and more
> direct goal is actually to be able to merge this part with the
> hp-disk-leds driver, which has the same ACPI PNP number.
>
> Signed-off-by: Pavel Machek <pavel@...e.cz>
> Signed-off-by: Eric Piel <eric.piel@...mplin-utc.net>
> Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
> ---
>
> drivers/hwmon/Makefile | 2
> drivers/hwmon/hp_accel.c | 265 ++++++++++++++++++++++++++++++++++
> drivers/hwmon/lis3lv02d.c | 273 +++---------------------------------
> drivers/hwmon/lis3lv02d.h | 35 ++++
> 4 files changed, 324 insertions(+), 251 deletions(-)
>
> diff -puN drivers/hwmon/Makefile~lis3lv02d-separate-the-core-from-hp-acpi-api drivers/hwmon/Makefile
> --- a/drivers/hwmon/Makefile~lis3lv02d-separate-the-core-from-hp-acpi-api
> +++ a/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 -puN /dev/null drivers/hwmon/hp_accel.c
> --- /dev/null
> +++ a/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 -puN drivers/hwmon/lis3lv02d.c~lis3lv02d-separate-the-core-from-hp-acpi-api drivers/hwmon/lis3lv02d.c
> --- a/drivers/hwmon/lis3lv02d.c~lis3lv02d-separate-the-core-from-hp-acpi-api
> +++ a/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_handl
> *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;
> + adev.write(handle, CTRL_REG2, val);
> }
> -
> -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
> -
> +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_j
> 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(voi
>
> 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(v
> 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
> 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(struc
> 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_
> .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_
> 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 -puN drivers/hwmon/lis3lv02d.h~lis3lv02d-separate-the-core-from-hp-acpi-api drivers/hwmon/lis3lv02d.h
> --- a/drivers/hwmon/lis3lv02d.h~lis3lv02d-separate-the-core-from-hp-acpi-api
> +++ a/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 IĂËC.
> + * 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;
> _
>
> Patches currently in -mm which might be from eric.piel@...mplin-utc.net are
>
> origin.patch
> lis3lv02d-separate-the-core-from-hp-acpi-api.patch
>
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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