Bug#404415: linux-source-2.6.18: Add support of applesmc module for Apple MacBook computers
Package: linux-source-2.6.18
Severity: wishlist
Tags: patch
Hello,
I have an Apple MacBook Pro and the applesmc kernel module is needed for
mbpeventd to be able to set keyboard backlight (see bug #404324).
A patch for applesmc is maintained in the mactel SVN repository at
http://svn.sourceforge.net/viewvc/mactel-linux/trunk/kernel/mactel-patches-2.6.18/applesmc.patch?view=log
I also include the patch here.
The patch should be included in vanilla Linux at some time but maybe not
before 2.6.20. It would be nice if the Debian kernel for Etch has
support for Apple MacBook Pro computers.
Thanks
-- System Information:
Debian Release: 4.0
APT prefers testing
APT policy: (500, 'testing'), (90, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-3-686
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
diff -pruN linux/drivers/hwmon.vanilla/Kconfig linux/drivers/hwmon/Kconfig
--- linux/drivers/hwmon.vanilla/Kconfig 2006-10-14 13:07:48.000000000 +0800
+++ linux/drivers/hwmon/Kconfig 2006-10-14 13:08:22.000000000 +0800
@@ -507,6 +507,26 @@ config SENSORS_HDAPS
Say Y here if you have an applicable laptop and want to experience
the awesome power of hdaps.
+config SENSORS_APPLESMC
+ tristate "Apple SMC (Motion sensor, light sensor, keyboard backlight)"
+ depends on HWMON && INPUT && X86
+ default n
+ help
+ This driver provides support for the Apple System Management
+ Controller, which provides an accelerometer (Apple Sudden Motion
+ Sensor), light sensors, and keyboard backlight control.
+
+ Only Intel-based Apple's laptops are supported (MacBook Pro, MacBook).
+
+ The accelerometer and light sensors data is readable via sysfs, and
+ the keyboard backlight is writable.
+
+ This driver also provides an absolute input class device, allowing
+ the laptop to act as a pinball machine-esque joystick.
+
+ Say Y here if you have an applicable laptop and want to experience
+ the awesome power of applesmc.
+
config HWMON_DEBUG_CHIP
bool "Hardware Monitoring Chip debugging messages"
depends on HWMON
diff -pruN linux/drivers/hwmon.vanilla/Makefile linux/drivers/hwmon/Makefile
--- linux/drivers/hwmon.vanilla/Makefile 2006-10-14 13:07:48.000000000 +0800
+++ linux/drivers/hwmon/Makefile 2006-10-14 13:08:22.000000000 +0800
@@ -18,6 +18,7 @@ obj-$(CONFIG_SENSORS_ADM1025) += adm1025
obj-$(CONFIG_SENSORS_ADM1026) += adm1026.o
obj-$(CONFIG_SENSORS_ADM1031) += adm1031.o
obj-$(CONFIG_SENSORS_ADM9240) += adm9240.o
+obj-$(CONFIG_SENSORS_APPLESMC) += applesmc.o
obj-$(CONFIG_SENSORS_ATXP1) += atxp1.o
obj-$(CONFIG_SENSORS_DS1621) += ds1621.o
obj-$(CONFIG_SENSORS_F71805F) += f71805f.o
diff -pruN linux/drivers/hwmon.vanilla/applesmc.c linux/drivers/hwmon/applesmc.c
--- linux/drivers/hwmon.vanilla/applesmc.c 1970-01-01 07:30:00.000000000 +0730
+++ linux/drivers/hwmon/applesmc.c 2006-11-04 22:36:08.000000000 +0800
@@ -0,0 +1,913 @@
+/*
+ * drivers/hwmon/applesmc.c - driver for Apple's SMC (various sensors,
+ * fan control)
+ *
+ * Copyright (C) 2006 Nicolas Boichat <nicolas@boichat.ch>
+ *
+ * Based on hdaps.c driver:
+ * Copyright (C) 2005 Robert Love <rml@novell.com>
+ * Copyright (C) 2005 Jesper Juhl <jesper.juhl@gmail.com>
+ *
+ * Fan control based on smcFanControl:
+ * Copyright (C) 2006 Hendrik Holtmann <holtmann@mac.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License v2 as published by the
+ * Free Software Foundation.
+ *
+ * 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 Street, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/timer.h>
+#include <linux/dmi.h>
+#include <asm/io.h>
+#include <linux/leds.h>
+
+/* data port used by apple SMC */
+#define APPLESMC_DATA_PORT 0x300
+/* command/status port used by apple SMC */
+#define APPLESMC_CMD_PORT 0x304
+
+#define APPLESMC_NR_PORTS 5 /* 0x300-0x304 */
+
+#define APPLESMC_STATUS_MASK 0x0f
+#define APPLESMC_READ_CMD 0x10
+#define APPLESMC_WRITE_CMD 0x11
+
+#define LIGHT_SENSOR_LEFT_KEY "ALV0" //r-o length 6
+#define LIGHT_SENSOR_RIGHT_KEY "ALV1" //r-o length 6
+#define BACKLIGHT_KEY "LKSB" //w-o
+
+#define CLAMSHELL_KEY "MSLD" //r-o length 1 (unused)
+
+#define MOTION_SENSOR_X_KEY "MO_X" //r-o length 2
+#define MOTION_SENSOR_Y_KEY "MO_Y" //r-o length 2
+#define MOTION_SENSOR_Z_KEY "MO_Z" //r-o length 2
+#define MOTION_SENSOR_KEY "MOCN" //r/w length 2
+
+#define FANS_COUNT "FNum" //r-o length 1
+#define FANS_MANUAL "FS! " //r-w length 2
+#define FAN_ACTUAL_SPEED "F0Ac" //r-o length 2
+#define FAN_MIN_SPEED "F0Mn" //r-o length 2
+#define FAN_MAX_SPEED "F0Mx" //r-o length 2
+#define FAN_SAFE_SPEED "F0Sf" //r-o length 2
+#define FAN_TARGET_SPEED "F0Tg" //r-w length 2
+
+static const char* temperature_sensors_sets[][8] =
+{
+ { "TB0T", "TC0D", "TC0P", "Th0H", "Ts0P", "Th1H", "Ts1P", NULL },
+ { "TC0D", "TC0P", NULL }
+};
+
+#define INIT_TIMEOUT_MSECS 5000 /* wait up to 5s for device init ... */
+#define INIT_WAIT_MSECS 50 /* ... in 50ms increments */
+
+#define APPLESMC_POLL_PERIOD (HZ/20) /* poll for input every 1/20s */
+#define APPLESMC_INPUT_FUZZ 4 /* input event threshold */
+#define APPLESMC_INPUT_FLAT 4
+
+#define SENSOR_X 0
+#define SENSOR_Y 1
+#define SENSOR_Z 2
+
+/* Structure to be passed to DMI_MATCH function */
+struct dmi_match_data {
+/* Indicate whether this computer has an accelerometer. */
+ int accelerometer;
+/* Indicate whether this computer has light sensors and keyboard backlight. */
+ int light;
+/* Indicate which temperature sensors set to use. */
+ int temperature_set;
+};
+
+static int debug = 0;
+static struct platform_device *pdev;
+static s16 rest_x;
+static s16 rest_y;
+static struct timer_list applesmc_timer;
+static struct input_dev *applesmc_idev;
+
+/* Indicate whether this computer has an accelerometer. */
+static unsigned int applesmc_accelerometer = 0;
+
+/* Indicate whether this computer has light sensors and keyboard backlight. */
+static unsigned int applesmc_light = 0;
+
+/* Indicate which temperature sensors set to use. */
+static unsigned int applesmc_temperature_set = 0;
+
+static DECLARE_MUTEX(applesmc_sem);
+
+/*
+ * __wait_status - Wait up to 100ms for the status port to get a certain value
+ * (masked with 0x0f), returning zero if the value is obtained. Callers must
+ * hold applesmc_sem.
+ */
+static int __wait_status(u8 val)
+{
+ unsigned int i;
+
+ val = val & APPLESMC_STATUS_MASK;
+
+ for (i = 0; i < 10000; i++) {
+ if ((inb(APPLESMC_CMD_PORT) & APPLESMC_STATUS_MASK) == val)
+ return 0;
+ udelay(10);
+ }
+
+ printk(KERN_WARNING "applesmc: wait status failed: %x != %x\n",
+ val, inb(APPLESMC_CMD_PORT));
+
+ return -EIO;
+}
+
+/*
+ * applesmc_read_key - reads len bytes from a given key, and put them in buffer.
+ * Returns zero on success or a negative error on failure. Callers must
+ * hold applesmc_sem.
+ */
+static int applesmc_read_key(const char* key, u8* buffer, u8 len)
+{
+ int ret = -EIO;
+ int i;
+
+ outb(APPLESMC_READ_CMD, APPLESMC_CMD_PORT);
+ if (__wait_status(0x0c))
+ goto out;
+
+ for (i = 0; i < 4; i++) {
+ outb(key[i], APPLESMC_DATA_PORT);
+ if (__wait_status(0x04))
+ goto out;
+ }
+ if (debug) printk(KERN_DEBUG "<%s", key);
+
+ outb(len, APPLESMC_DATA_PORT);
+ if (debug) printk(KERN_DEBUG ">%x", len);
+
+ for (i = 0; i < len; i++) {
+ if (__wait_status(0x05))
+ goto out;
+ buffer[i] = inb(APPLESMC_DATA_PORT);
+ if (debug) printk(KERN_DEBUG "<%x", buffer[i]);
+ }
+ if (debug) printk(KERN_DEBUG "\n");
+ ret = 0;
+
+out:
+ return ret;
+}
+
+/*
+ * applesmc_write_key - writes len bytes from buffer to a given key.
+ * Returns zero on success or a negative error on failure. Callers must
+ * hold applesmc_sem.
+ */
+static int applesmc_write_key(const char* key, u8* buffer, u8 len)
+{
+ int ret = -EIO;
+ int i;
+
+ outb(APPLESMC_WRITE_CMD, APPLESMC_CMD_PORT);
+ if (__wait_status(0x0c))
+ goto out;
+
+ for (i = 0; i < 4; i++) {
+ outb(key[i], APPLESMC_DATA_PORT);
+ if (__wait_status(0x04))
+ goto out;
+ }
+
+ outb(len, APPLESMC_DATA_PORT);
+
+ for (i = 0; i < len; i++) {
+ if (__wait_status(0x04))
+ goto out;
+ outb(buffer[i], APPLESMC_DATA_PORT);
+ }
+
+ ret = 0;
+out:
+ return ret;
+}
+
+/*
+ * applesmc_read_motion_sensor - Read motion sensor (X, Y or Z). Callers must
+ * hold applesmc_sem.
+ */
+static int applesmc_read_motion_sensor(int index, s16* value) {
+ u8 buffer[2];
+ int ret;
+
+ switch (index) {
+ case SENSOR_X:
+ ret = applesmc_read_key(MOTION_SENSOR_X_KEY, buffer, 2);
+ break;
+ case SENSOR_Y:
+ ret = applesmc_read_key(MOTION_SENSOR_Y_KEY, buffer, 2);
+ break;
+ case SENSOR_Z:
+ ret = applesmc_read_key(MOTION_SENSOR_Z_KEY, buffer, 2);
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ *value = ((s16)buffer[0] << 8) | buffer[1];
+
+ return ret;
+}
+
+/*
+ * applesmc_device_init - initialize the accelerometer. Returns zero on success
+ * and negative error code on failure. Can sleep.
+ */
+static int applesmc_device_init(void)
+{
+ int total, ret = -ENXIO;
+ u8 buffer[2];
+
+ if (!applesmc_accelerometer) return 0;
+
+ down(&applesmc_sem);
+
+ for (total = INIT_TIMEOUT_MSECS; total > 0; total -= INIT_WAIT_MSECS) {
+ if (debug) printk(KERN_DEBUG "applesmc try %d\n", total);
+ if (!applesmc_read_key(MOTION_SENSOR_KEY, buffer, 2) &&
+ (buffer[0] != 0x00 || buffer[1] != 0x00)) {
+ if (total == INIT_TIMEOUT_MSECS) {
+ printk(KERN_DEBUG "applesmc: device has"
+ " already been initialized"
+ " (0x%02x, 0x%02x).\n",
+ buffer[0], buffer[1]);
+ }
+ else {
+ printk(KERN_DEBUG "applesmc: device"
+ " successfully initialized"
+ " (0x%02x, 0x%02x).\n",
+ buffer[0], buffer[1]);
+ }
+ ret = 0;
+ goto out;
+ }
+ buffer[0] = 0xe0;
+ buffer[1] = 0x00;
+ applesmc_write_key(MOTION_SENSOR_KEY, buffer, 2);
+ msleep(INIT_WAIT_MSECS);
+ }
+
+ printk(KERN_WARNING "applesmc: failed to init the device\n");
+
+out:
+ up(&applesmc_sem);
+ return ret;
+}
+
+/*
+ * applesmc_get_fan_count - get the number of fans. Callers must NOT hold
+ * applesmc_sem.
+ */
+static int applesmc_get_fan_count(void)
+{
+ int ret;
+ u8 buffer[1];
+
+ down(&applesmc_sem);
+
+ ret = applesmc_read_key(FANS_COUNT, buffer, 1);
+
+ up(&applesmc_sem);
+ if (ret)
+ return ret;
+ else
+ return buffer[0];
+}
+
+/* Device model stuff */
+static int applesmc_probe(struct platform_device *dev)
+{
+ int ret;
+
+ ret = applesmc_device_init();
+ if (ret)
+ return ret;
+
+ printk(KERN_INFO "applesmc: device successfully initialized.\n");
+ return 0;
+}
+
+static int applesmc_resume(struct platform_device *dev)
+{
+ return applesmc_device_init();
+}
+
+static struct platform_driver applesmc_driver = {
+ .probe = applesmc_probe,
+ .resume = applesmc_resume,
+ .driver = {
+ .name = "applesmc",
+ .owner = THIS_MODULE,
+ },
+};
+
+/*
+ * applesmc_calibrate - Set our "resting" values. Callers must hold applesmc_sem.
+ */
+static void applesmc_calibrate(void)
+{
+ applesmc_read_motion_sensor(SENSOR_X, &rest_x);
+ applesmc_read_motion_sensor(SENSOR_Y, &rest_y);
+}
+
+static void applesmc_mousedev_poll(unsigned long unused)
+{
+ s16 x, y;
+
+ /* Cannot sleep. Try nonblockingly. If we fail, try again later. */
+ if (down_trylock(&applesmc_sem)) {
+ mod_timer(&applesmc_timer,jiffies + APPLESMC_POLL_PERIOD);
+ return;
+ }
+
+ if (applesmc_read_motion_sensor(SENSOR_X, &x))
+ goto out;
+ if (applesmc_read_motion_sensor(SENSOR_Y, &y))
+ goto out;
+
+
+ input_report_abs(applesmc_idev, ABS_X, x - rest_x);
+ input_report_abs(applesmc_idev, ABS_Y, y - rest_y);
+ input_sync(applesmc_idev);
+
+out:
+ mod_timer(&applesmc_timer, jiffies + APPLESMC_POLL_PERIOD);
+
+ up(&applesmc_sem);
+}
+
+/* Sysfs Files */
+
+static ssize_t applesmc_position_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int ret;
+ s16 x, y, z;
+
+ down(&applesmc_sem);
+
+ ret = applesmc_read_motion_sensor(SENSOR_X, &x);
+ if (ret)
+ goto out;
+ ret = applesmc_read_motion_sensor(SENSOR_Y, &y);
+ if (ret)
+ goto out;
+ ret = applesmc_read_motion_sensor(SENSOR_Z, &z);
+ if (ret)
+ goto out;
+
+out:
+ up(&applesmc_sem);
+ if (ret)
+ return ret;
+ else
+ return sprintf(buf, "(%d,%d,%d)\n", x, y, z);
+}
+
+static ssize_t applesmc_light_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int ret;
+ u8 left = 0, right = 0;
+ u8 buffer[6];
+
+ down(&applesmc_sem);
+
+ ret = applesmc_read_key(LIGHT_SENSOR_LEFT_KEY, buffer, 6);
+ left = buffer[2];
+ if (ret)
+ goto out;
+ ret = applesmc_read_key(LIGHT_SENSOR_RIGHT_KEY, buffer, 6);
+ right = buffer[2];
+
+out:
+ up(&applesmc_sem);
+ if (ret)
+ return ret;
+ else
+ return sprintf(buf, "(%d,%d)\n", left, right);
+}
+
+/* Displays °C * 100 */
+static ssize_t applesmc_show_temperature(struct device *dev, char *buf, const char *key)
+{
+ int ret;
+ u8 buffer[2];
+ unsigned int temp;
+
+ down(&applesmc_sem);
+
+ ret = applesmc_read_key(key, buffer, 2);
+ temp = buffer[0]*100;
+ temp += (buffer[1] >> 6) * 25;
+
+ up(&applesmc_sem);
+
+ if (ret)
+ return ret;
+ else
+ return sprintf(buf, "%u\n", temp);
+}
+
+static ssize_t applesmc_show_fan_speed(struct device *dev, char *buf,
+ const char* key, int offset)
+{
+ int ret;
+ unsigned int speed = 0;
+ char newkey[5];
+ u8 buffer[2];
+
+ newkey[0] = key[0];
+ newkey[1] = '0' + offset;
+ newkey[2] = key[2];
+ newkey[3] = key[3];
+ newkey[4] = 0;
+
+ down(&applesmc_sem);
+
+ ret = applesmc_read_key(newkey, buffer, 2);
+ speed = ((buffer[0] << 8 | buffer[1]) >> 2);
+
+ up(&applesmc_sem);
+ if (ret)
+ return ret;
+ else
+ return sprintf(buf, "%u\n", speed);
+}
+
+static ssize_t applesmc_store_fan_speed(struct device *dev, const char *buf,
+ size_t count, const char* key, int offset)
+{
+ int ret;
+ u32 speed;
+ char newkey[5];
+ u8 buffer[2];
+
+ speed = simple_strtoul(buf, NULL, 10);
+
+ if (speed > 0x4000) /* Bigger than a 14-bit value */
+ return -EINVAL;
+
+ newkey[0] = key[0];
+ newkey[1] = '0' + offset;
+ newkey[2] = key[2];
+ newkey[3] = key[3];
+ newkey[4] = 0;
+
+ down(&applesmc_sem);
+
+ buffer[0] = (speed >> 6) & 0xff;
+ buffer[1] = (speed << 2) & 0xff;
+ ret = applesmc_write_key(newkey, buffer, 2);
+
+ up(&applesmc_sem);
+ if (ret)
+ return ret;
+ else
+ return count;
+}
+
+static ssize_t applesmc_show_fan_manual(struct device *dev, char *buf,
+ int offset)
+{
+ int ret;
+ u16 manual = 0;
+ u8 buffer[2];
+
+ down(&applesmc_sem);
+
+ ret = applesmc_read_key(FANS_MANUAL, buffer, 2);
+ manual = ((buffer[0] << 8 | buffer[1]) >> offset) & 0x01;
+
+ up(&applesmc_sem);
+ if (ret)
+ return ret;
+ else
+ return sprintf(buf, "%d\n", manual);
+}
+
+static ssize_t applesmc_store_fan_manual(struct device *dev, const char *buf,
+ size_t count, int offset)
+{
+ int ret;
+ u8 buffer[2];
+ u32 input;
+ u16 val;
+
+ input = simple_strtoul(buf, NULL, 10);
+
+ down(&applesmc_sem);
+
+ ret = applesmc_read_key(FANS_MANUAL, buffer, 2);
+ val = (buffer[0] << 8 | buffer[1]);
+ if (ret)
+ goto out;
+
+ if (input)
+ val = val | (0x01 << offset);
+ else
+ val = val & ~(0x01 << offset);
+
+ buffer[0] = (val >> 8) & 0xFF;
+ buffer[1] = val & 0xFF;
+
+ ret = applesmc_write_key(FANS_MANUAL, buffer, 2);
+
+out:
+ up(&applesmc_sem);
+ if (ret)
+ return ret;
+ else
+ return count;
+}
+
+static ssize_t applesmc_calibrate_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return sprintf(buf, "(%d,%d)\n", rest_x, rest_y);
+}
+
+static ssize_t applesmc_calibrate_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ down(&applesmc_sem);
+ applesmc_calibrate();
+ up(&applesmc_sem);
+
+ return count;
+}
+
+static void applesmc_backlight_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ u8 buffer[2];
+
+ down(&applesmc_sem);
+ buffer[0] = value;
+ buffer[1] = 0x00;
+ applesmc_write_key(BACKLIGHT_KEY, buffer, 2);
+ up(&applesmc_sem);
+}
+
+static struct led_classdev applesmc_backlight = {
+ .name = "smc:kbd_backlight",
+ .default_trigger = "nand-disk",
+ .brightness_set = applesmc_backlight_set,
+};
+
+static DEVICE_ATTR(position, 0444, applesmc_position_show, NULL);
+static DEVICE_ATTR(calibrate, 0644, applesmc_calibrate_show,applesmc_calibrate_store);
+
+static DEVICE_ATTR(light, 0444, applesmc_light_show, NULL);
+
+#define sysfs_fan_speeds_offset(offset) \
+static ssize_t show_fan_actual_speed_##offset (struct device *dev, \
+ struct device_attribute *attr, char *buf) \
+{ \
+ return applesmc_show_fan_speed(dev, buf, FAN_ACTUAL_SPEED, offset); \
+} \
+static DEVICE_ATTR(fan##offset##_actual_speed, S_IRUGO, \
+ show_fan_actual_speed_##offset, NULL); \
+\
+static ssize_t show_fan_minimum_speed_##offset (struct device *dev, \
+ struct device_attribute *attr, char *buf) \
+{ \
+ return applesmc_show_fan_speed(dev, buf, FAN_MIN_SPEED, offset); \
+} \
+static ssize_t store_fan_minimum_speed_##offset (struct device *dev, \
+ struct device_attribute *attr, const char *buf, size_t count) \
+{ \
+ return applesmc_store_fan_speed(dev, buf, count, FAN_MIN_SPEED, offset); \
+} \
+static DEVICE_ATTR(fan##offset##_minimum_speed, S_IRUGO | S_IWUSR, \
+ show_fan_minimum_speed_##offset, store_fan_minimum_speed_##offset); \
+\
+static ssize_t show_fan_maximum_speed_##offset (struct device *dev, \
+ struct device_attribute *attr, char *buf) \
+{ \
+ return applesmc_show_fan_speed(dev, buf, FAN_MAX_SPEED, offset); \
+} \
+static DEVICE_ATTR(fan##offset##_maximum_speed, S_IRUGO, \
+ show_fan_maximum_speed_##offset, NULL); \
+\
+static ssize_t show_fan_safe_speed_##offset (struct device *dev, \
+ struct device_attribute *attr, char *buf) \
+{ \
+ return applesmc_show_fan_speed(dev, buf, FAN_SAFE_SPEED, offset); \
+} \
+static DEVICE_ATTR(fan##offset##_safe_speed, S_IRUGO, \
+ show_fan_safe_speed_##offset, NULL); \
+\
+static ssize_t show_fan_target_speed_##offset (struct device *dev, \
+ struct device_attribute *attr, char *buf) \
+{ \
+ return applesmc_show_fan_speed(dev, buf, FAN_TARGET_SPEED, offset); \
+} \
+static ssize_t store_fan_target_speed_##offset (struct device *dev, \
+ struct device_attribute *attr, const char *buf, size_t count) \
+{ \
+ return applesmc_store_fan_speed(dev, buf, count, FAN_TARGET_SPEED, offset); \
+} \
+static DEVICE_ATTR(fan##offset##_target_speed, S_IRUGO | S_IWUSR, \
+ show_fan_target_speed_##offset, store_fan_target_speed_##offset);
+
+#define sysfs_fan_manual_offset(offset) \
+static ssize_t show_fan_manual_##offset (struct device *dev, \
+ struct device_attribute *attr, char *buf) \
+{ \
+ return applesmc_show_fan_manual(dev, buf, offset); \
+} \
+static ssize_t store_fan_manual_##offset (struct device *dev, \
+ struct device_attribute *attr, const char *buf, size_t count) \
+{ \
+ return applesmc_store_fan_manual(dev, buf, count, offset); \
+} \
+static DEVICE_ATTR(fan##offset##_manual, S_IRUGO | S_IWUSR, \
+ show_fan_manual_##offset, store_fan_manual_##offset);
+
+
+sysfs_fan_speeds_offset(0);
+sysfs_fan_manual_offset(0);
+sysfs_fan_speeds_offset(1);
+sysfs_fan_manual_offset(1);
+
+#define device_create_file_fan(client, offset) \
+do { \
+sysfs_create_file(client, &dev_attr_fan##offset##_actual_speed.attr); \
+sysfs_create_file(client, &dev_attr_fan##offset##_minimum_speed.attr); \
+sysfs_create_file(client, &dev_attr_fan##offset##_maximum_speed.attr); \
+sysfs_create_file(client, &dev_attr_fan##offset##_safe_speed.attr); \
+sysfs_create_file(client, &dev_attr_fan##offset##_target_speed.attr); \
+sysfs_create_file(client, &dev_attr_fan##offset##_manual.attr); \
+} while (0)
+
+#define sysfs_temperature_offset(offset) \
+static ssize_t show_temperature_##offset (struct device *dev, \
+ struct device_attribute *attr, char *buf) \
+{ \
+ return applesmc_show_temperature(dev, buf, temperature_sensors_sets[applesmc_temperature_set][offset]); \
+} \
+static DEVICE_ATTR(temperature_##offset, S_IRUGO, \
+ show_temperature_##offset, NULL);
+
+sysfs_temperature_offset(0);
+sysfs_temperature_offset(1);
+sysfs_temperature_offset(2);
+sysfs_temperature_offset(3);
+sysfs_temperature_offset(4);
+sysfs_temperature_offset(5);
+sysfs_temperature_offset(6);
+
+#define device_create_files_temperature(client, offset) \
+{ \
+ sysfs_create_file(client, &dev_attr_temperature_##offset.attr); \
+} while (0)
+
+/* Module stuff */
+
+/*
+ * applesmc_dmi_match - found a match. return one, short-circuiting
+ * the hunt.
+ */
+static int applesmc_dmi_match(struct dmi_system_id *id)
+{
+ int i = 0;
+ struct dmi_match_data* dmi_data =
+ (struct dmi_match_data*)id->driver_data;
+ printk(KERN_INFO "applesmc: %s detected:\n", id->ident);
+ applesmc_accelerometer = dmi_data->accelerometer;
+ printk(KERN_INFO "applesmc: - Model %s accelerometer\n",
+ applesmc_accelerometer ? "with" : "without");
+ applesmc_light = dmi_data->light;
+ printk(KERN_INFO "applesmc: - Model %s light sensors and backlight\n",
+ applesmc_light ? "with" : "without");
+
+ applesmc_temperature_set = dmi_data->temperature_set;
+ while (temperature_sensors_sets[applesmc_temperature_set][i] != NULL) i++;
+ printk(KERN_INFO "applesmc: - Model with %d temperature sensors\n", i);
+ return 1;
+}
+
+/* Create accelerometer ressources */
+static int applesmc_create_accelerometer(void) {
+ int ret;
+
+ ret = sysfs_create_file(&pdev->dev.kobj, &dev_attr_position.attr);
+ if (ret)
+ goto out;
+
+ ret = sysfs_create_file(&pdev->dev.kobj, &dev_attr_calibrate.attr);
+ if (ret)
+ goto out;
+
+ applesmc_idev = input_allocate_device();
+ if (!applesmc_idev) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ /* initial calibrate for the input device */
+ applesmc_calibrate();
+
+ /* initialize the input class */
+ applesmc_idev->name = "applesmc";
+ applesmc_idev->cdev.dev = &pdev->dev;
+ applesmc_idev->evbit[0] = BIT(EV_ABS);
+ input_set_abs_params(applesmc_idev, ABS_X,
+ -256, 256, APPLESMC_INPUT_FUZZ, APPLESMC_INPUT_FLAT);
+ input_set_abs_params(applesmc_idev, ABS_Y,
+ -256, 256, APPLESMC_INPUT_FUZZ, APPLESMC_INPUT_FLAT);
+
+ input_register_device(applesmc_idev);
+
+ /* start up our timer for the input device */
+ init_timer(&applesmc_timer);
+ applesmc_timer.function = applesmc_mousedev_poll;
+ applesmc_timer.expires = jiffies + APPLESMC_POLL_PERIOD;
+ add_timer(&applesmc_timer);
+
+ return 0;
+
+out:
+ printk(KERN_WARNING "applesmc: driver init failed (ret=%d)!\n", ret);
+ return ret;
+}
+
+/* Release all ressources used by the accelerometer */
+static void applesmc_release_accelerometer(void) {
+ del_timer_sync(&applesmc_timer);
+ input_unregister_device(applesmc_idev);
+}
+
+static int __init applesmc_init(void)
+{
+ int ret;
+
+ struct dmi_match_data applesmc_dmi_data[] = {
+ { .accelerometer = 1, .light = 1, .temperature_set = 0 },
+ { .accelerometer = 1, .light = 0, .temperature_set = 0 },
+ { .accelerometer = 0, .light = 0, .temperature_set = 1 }
+ };
+
+ /* Note that DMI_MATCH(...,"MacBook") will match "MacBookPro1,1".
+ * So we need to put APPLESMC_MACBOOKPRO_DMI_MATCH before
+ * APPLESMC_MACBOOK_DMI_MATCH. */
+ struct dmi_system_id applesmc_whitelist[] = {
+ { applesmc_dmi_match, "Apple MacBook Pro", {
+ DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
+ DMI_MATCH(DMI_PRODUCT_NAME,"MacBookPro") },
+ (void*)&applesmc_dmi_data[0]},
+ { applesmc_dmi_match, "Apple MacBook", {
+ DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
+ DMI_MATCH(DMI_PRODUCT_NAME,"MacBook") },
+ (void*)&applesmc_dmi_data[1]},
+ { applesmc_dmi_match, "Apple Macmini", {
+ DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
+ DMI_MATCH(DMI_PRODUCT_NAME,"Macmini") },
+ (void*)&applesmc_dmi_data[2]},
+ { .ident = NULL }
+ };
+
+ if (!dmi_check_system(applesmc_whitelist)) {
+ printk(KERN_WARNING "applesmc: supported laptop not found!\n");
+ ret = -ENODEV;
+ goto out;
+ }
+
+ if (!request_region(APPLESMC_DATA_PORT, APPLESMC_NR_PORTS,
+ "applesmc")) {
+ ret = -ENXIO;
+ goto out;
+ }
+
+ ret = platform_driver_register(&applesmc_driver);
+ if (ret)
+ goto out_region;
+
+ pdev = platform_device_register_simple("applesmc", -1, NULL, 0);
+ if (IS_ERR(pdev)) {
+ ret = PTR_ERR(pdev);
+ goto out_driver;
+ }
+
+ /* create fan files */
+ ret = applesmc_get_fan_count();
+ if (ret < 0) {
+ printk(KERN_ERR "applesmc: Cannot get the number of fans.\n");
+ }
+ else {
+ printk(KERN_INFO "applesmc: %d fans found.\n", ret);
+
+ switch (ret) {
+ default:
+ printk(KERN_WARNING "applesmc: More than 2 fans found,"
+ " but at most 2 fans are supported"
+ " by the driver.\n");
+ case 2:
+ device_create_file_fan(&pdev->dev.kobj, 1);
+ case 1:
+ device_create_file_fan(&pdev->dev.kobj, 0);
+ case 0:
+ ;
+ }
+ }
+
+ ret = 0;
+ while (temperature_sensors_sets[applesmc_temperature_set][ret] != NULL) ret++;
+
+ switch (ret) {
+ default:
+ case 7:
+ device_create_files_temperature(&pdev->dev.kobj, 6);
+ case 6:
+ device_create_files_temperature(&pdev->dev.kobj, 5);
+ case 5:
+ device_create_files_temperature(&pdev->dev.kobj, 4);
+ case 4:
+ device_create_files_temperature(&pdev->dev.kobj, 3);
+ case 3:
+ device_create_files_temperature(&pdev->dev.kobj, 2);
+ case 2:
+ device_create_files_temperature(&pdev->dev.kobj, 1);
+ case 1:
+ device_create_files_temperature(&pdev->dev.kobj, 0);
+ case 0:
+ ;
+ }
+
+ if (applesmc_accelerometer) {
+ ret = applesmc_create_accelerometer();
+ if (ret)
+ goto out_device;
+ }
+
+ if (applesmc_light) {
+ /* Add light sensor file */
+ ret = sysfs_create_file(&pdev->dev.kobj, &dev_attr_light.attr);
+ if (ret)
+ goto out_accelerometer;
+
+ /* register as a led device */
+ ret = led_classdev_register(&pdev->dev, &applesmc_backlight);
+ if (ret < 0)
+ goto out_accelerometer;
+ }
+
+ printk(KERN_INFO "applesmc: driver successfully loaded.\n");
+ return 0;
+
+out_accelerometer:
+ if (applesmc_accelerometer)
+ applesmc_release_accelerometer();
+out_device:
+ platform_device_unregister(pdev);
+out_driver:
+ platform_driver_unregister(&applesmc_driver);
+out_region:
+ release_region(APPLESMC_DATA_PORT, APPLESMC_NR_PORTS);
+out:
+ printk(KERN_WARNING "applesmc: driver init failed (ret=%d)!\n", ret);
+ return ret;
+}
+
+static void __exit applesmc_exit(void)
+{
+ if (applesmc_light)
+ led_classdev_unregister(&applesmc_backlight);
+ if (applesmc_accelerometer)
+ applesmc_release_accelerometer();
+ platform_device_unregister(pdev);
+ platform_driver_unregister(&applesmc_driver);
+ release_region(APPLESMC_DATA_PORT, APPLESMC_NR_PORTS);
+
+ printk(KERN_INFO "applesmc: driver unloaded.\n");
+}
+
+module_init(applesmc_init);
+module_exit(applesmc_exit);
+
+MODULE_AUTHOR("Nicolas Boichat");
+MODULE_DESCRIPTION("Apple SMC");
+MODULE_LICENSE("GPL v2");
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