| /* |
| * drivers/hwmon/applesmc.c - driver for Apple's SMC (accelerometer, temperature |
| * sensors, fan control, keyboard backlight control) used in Intel-based Apple |
| * computers. |
| * |
| * Copyright (C) 2007 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-polldev.h> |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/timer.h> |
| #include <linux/dmi.h> |
| #include <linux/mutex.h> |
| #include <linux/hwmon-sysfs.h> |
| #include <asm/io.h> |
| #include <linux/leds.h> |
| #include <linux/hwmon.h> |
| #include <linux/workqueue.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 32 /* 0x300-0x31f */ |
| |
| #define APPLESMC_MAX_DATA_LENGTH 32 |
| |
| #define APPLESMC_MIN_WAIT 0x0040 |
| #define APPLESMC_MAX_WAIT 0x8000 |
| |
| #define APPLESMC_STATUS_MASK 0x0f |
| #define APPLESMC_READ_CMD 0x10 |
| #define APPLESMC_WRITE_CMD 0x11 |
| #define APPLESMC_GET_KEY_BY_INDEX_CMD 0x12 |
| #define APPLESMC_GET_KEY_TYPE_CMD 0x13 |
| |
| #define KEY_COUNT_KEY "#KEY" /* r-o ui32 */ |
| |
| #define LIGHT_SENSOR_LEFT_KEY "ALV0" /* r-o {alv (6-10 bytes) */ |
| #define LIGHT_SENSOR_RIGHT_KEY "ALV1" /* r-o {alv (6-10 bytes) */ |
| #define BACKLIGHT_KEY "LKSB" /* w-o {lkb (2 bytes) */ |
| |
| #define CLAMSHELL_KEY "MSLD" /* r-o ui8 (unused) */ |
| |
| #define MOTION_SENSOR_X_KEY "MO_X" /* r-o sp78 (2 bytes) */ |
| #define MOTION_SENSOR_Y_KEY "MO_Y" /* r-o sp78 (2 bytes) */ |
| #define MOTION_SENSOR_Z_KEY "MO_Z" /* r-o sp78 (2 bytes) */ |
| #define MOTION_SENSOR_KEY "MOCN" /* r/w ui16 */ |
| |
| #define FANS_COUNT "FNum" /* r-o ui8 */ |
| #define FANS_MANUAL "FS! " /* r-w ui16 */ |
| #define FAN_ACTUAL_SPEED "F0Ac" /* r-o fpe2 (2 bytes) */ |
| #define FAN_MIN_SPEED "F0Mn" /* r-o fpe2 (2 bytes) */ |
| #define FAN_MAX_SPEED "F0Mx" /* r-o fpe2 (2 bytes) */ |
| #define FAN_SAFE_SPEED "F0Sf" /* r-o fpe2 (2 bytes) */ |
| #define FAN_TARGET_SPEED "F0Tg" /* r-w fpe2 (2 bytes) */ |
| #define FAN_POSITION "F0ID" /* r-o char[16] */ |
| |
| /* |
| * Temperature sensors keys (sp78 - 2 bytes). |
| */ |
| static const char* temperature_sensors_sets[][36] = { |
| /* Set 0: Macbook Pro */ |
| { "TA0P", "TB0T", "TC0D", "TC0P", "TG0H", "TG0P", "TG0T", "Th0H", |
| "Th1H", "Tm0P", "Ts0P", "Ts1P", NULL }, |
| /* Set 1: Macbook2 set */ |
| { "TB0T", "TC0D", "TC0P", "TM0P", "TN0P", "TN1P", "TTF0", "Th0H", |
| "Th0S", "Th1H", NULL }, |
| /* Set 2: Macbook set */ |
| { "TB0T", "TC0D", "TC0P", "TM0P", "TN0P", "TN1P", "Th0H", "Th0S", |
| "Th1H", "Ts0P", NULL }, |
| /* Set 3: Macmini set */ |
| { "TC0D", "TC0P", NULL }, |
| /* Set 4: Mac Pro (2 x Quad-Core) */ |
| { "TA0P", "TCAG", "TCAH", "TCBG", "TCBH", "TC0C", "TC0D", "TC0P", |
| "TC1C", "TC1D", "TC2C", "TC2D", "TC3C", "TC3D", "THTG", "TH0P", |
| "TH1P", "TH2P", "TH3P", "TMAP", "TMAS", "TMBS", "TM0P", "TM0S", |
| "TM1P", "TM1S", "TM2P", "TM2S", "TM3S", "TM8P", "TM8S", "TM9P", |
| "TM9S", "TN0H", "TS0C", NULL }, |
| /* Set 5: iMac */ |
| { "TC0D", "TA0P", "TG0P", "TG0D", "TG0H", "TH0P", "Tm0P", "TO0P", |
| "Tp0C", NULL }, |
| /* Set 6: Macbook3 set */ |
| { "TB0T", "TC0D", "TC0P", "TM0P", "TN0P", "TTF0", "TW0P", "Th0H", |
| "Th0S", "Th1H", NULL }, |
| /* Set 7: Macbook Air */ |
| { "TB0T", "TB1S", "TB1T", "TB2S", "TB2T", "TC0D", "TC0P", "TCFP", |
| "TTF0", "TW0P", "Th0H", "Tp0P", "TpFP", "Ts0P", "Ts0S", NULL }, |
| /* Set 8: Macbook Pro 4,1 (Penryn) */ |
| { "TB0T", "TC0D", "TC0P", "TG0D", "TG0H", "TTF0", "TW0P", "Th0H", |
| "Th1H", "Th2H", "Tm0P", "Ts0P", NULL }, |
| /* Set 9: Macbook Pro 3,1 (Santa Rosa) */ |
| { "TALP", "TB0T", "TC0D", "TC0P", "TG0D", "TG0H", "TTF0", "TW0P", |
| "Th0H", "Th1H", "Th2H", "Tm0P", "Ts0P", NULL }, |
| /* Set 10: iMac 5,1 */ |
| { "TA0P", "TC0D", "TC0P", "TG0D", "TH0P", "TO0P", "Tm0P", NULL }, |
| /* Set 11: Macbook 5,1 */ |
| { "TB0T", "TB1T", "TB2T", "TB3T", "TC0D", "TC0P", "TN0D", "TN0P", |
| "TTF0", "Th0H", "Th1H", "ThFH", "Ts0P", "Ts0S", NULL }, |
| }; |
| |
| /* List of keys used to read/write fan speeds */ |
| static const char* fan_speed_keys[] = { |
| FAN_ACTUAL_SPEED, |
| FAN_MIN_SPEED, |
| FAN_MAX_SPEED, |
| FAN_SAFE_SPEED, |
| FAN_TARGET_SPEED |
| }; |
| |
| #define INIT_TIMEOUT_MSECS 5000 /* wait up to 5s for device init ... */ |
| #define INIT_WAIT_MSECS 50 /* ... in 50ms increments */ |
| |
| #define APPLESMC_POLL_INTERVAL 50 /* msecs */ |
| #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 { |
| /* Indicates whether this computer has an accelerometer. */ |
| int accelerometer; |
| /* Indicates whether this computer has light sensors and keyboard backlight. */ |
| int light; |
| /* Indicates which temperature sensors set to use. */ |
| int temperature_set; |
| }; |
| |
| static const int debug; |
| static struct platform_device *pdev; |
| static s16 rest_x; |
| static s16 rest_y; |
| static struct device *hwmon_dev; |
| static struct input_polled_dev *applesmc_idev; |
| |
| /* Indicates whether this computer has an accelerometer. */ |
| static unsigned int applesmc_accelerometer; |
| |
| /* Indicates whether this computer has light sensors and keyboard backlight. */ |
| static unsigned int applesmc_light; |
| |
| /* Indicates which temperature sensors set to use. */ |
| static unsigned int applesmc_temperature_set; |
| |
| static DEFINE_MUTEX(applesmc_lock); |
| |
| /* |
| * Last index written to key_at_index sysfs file, and value to use for all other |
| * key_at_index_* sysfs files. |
| */ |
| static unsigned int key_at_index; |
| |
| static struct workqueue_struct *applesmc_led_wq; |
| |
| /* |
| * __wait_status - Wait up to 32ms for the status port to get a certain value |
| * (masked with 0x0f), returning zero if the value is obtained. Callers must |
| * hold applesmc_lock. |
| */ |
| static int __wait_status(u8 val) |
| { |
| int us; |
| |
| val = val & APPLESMC_STATUS_MASK; |
| |
| for (us = APPLESMC_MIN_WAIT; us < APPLESMC_MAX_WAIT; us <<= 1) { |
| udelay(us); |
| if ((inb(APPLESMC_CMD_PORT) & APPLESMC_STATUS_MASK) == val) { |
| if (debug) |
| printk(KERN_DEBUG |
| "Waited %d us for status %x\n", |
| 2 * us - APPLESMC_MIN_WAIT, val); |
| return 0; |
| } |
| } |
| |
| printk(KERN_WARNING "applesmc: wait status failed: %x != %x\n", |
| val, inb(APPLESMC_CMD_PORT)); |
| |
| return -EIO; |
| } |
| |
| /* |
| * special treatment of command port - on newer macbooks, it seems necessary |
| * to resend the command byte before polling the status again. Callers must |
| * hold applesmc_lock. |
| */ |
| static int send_command(u8 cmd) |
| { |
| int us; |
| for (us = APPLESMC_MIN_WAIT; us < APPLESMC_MAX_WAIT; us <<= 1) { |
| outb(cmd, APPLESMC_CMD_PORT); |
| udelay(us); |
| if ((inb(APPLESMC_CMD_PORT) & APPLESMC_STATUS_MASK) == 0x0c) |
| return 0; |
| } |
| printk(KERN_WARNING "applesmc: command failed: %x -> %x\n", |
| cmd, 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_lock. |
| */ |
| static int applesmc_read_key(const char* key, u8* buffer, u8 len) |
| { |
| int i; |
| |
| if (len > APPLESMC_MAX_DATA_LENGTH) { |
| printk(KERN_ERR "applesmc_read_key: cannot read more than " |
| "%d bytes\n", APPLESMC_MAX_DATA_LENGTH); |
| return -EINVAL; |
| } |
| |
| if (send_command(APPLESMC_READ_CMD)) |
| return -EIO; |
| |
| for (i = 0; i < 4; i++) { |
| outb(key[i], APPLESMC_DATA_PORT); |
| if (__wait_status(0x04)) |
| return -EIO; |
| } |
| 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)) |
| return -EIO; |
| buffer[i] = inb(APPLESMC_DATA_PORT); |
| if (debug) |
| printk(KERN_DEBUG "<%x", buffer[i]); |
| } |
| if (debug) |
| printk(KERN_DEBUG "\n"); |
| |
| return 0; |
| } |
| |
| /* |
| * 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_lock. |
| */ |
| static int applesmc_write_key(const char* key, u8* buffer, u8 len) |
| { |
| int i; |
| |
| if (len > APPLESMC_MAX_DATA_LENGTH) { |
| printk(KERN_ERR "applesmc_write_key: cannot write more than " |
| "%d bytes\n", APPLESMC_MAX_DATA_LENGTH); |
| return -EINVAL; |
| } |
| |
| if (send_command(APPLESMC_WRITE_CMD)) |
| return -EIO; |
| |
| for (i = 0; i < 4; i++) { |
| outb(key[i], APPLESMC_DATA_PORT); |
| if (__wait_status(0x04)) |
| return -EIO; |
| } |
| |
| outb(len, APPLESMC_DATA_PORT); |
| |
| for (i = 0; i < len; i++) { |
| if (__wait_status(0x04)) |
| return -EIO; |
| outb(buffer[i], APPLESMC_DATA_PORT); |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * applesmc_get_key_at_index - get key at index, and put the result in key |
| * (char[6]). Returns zero on success or a negative error on failure. Callers |
| * must hold applesmc_lock. |
| */ |
| static int applesmc_get_key_at_index(int index, char* key) |
| { |
| int i; |
| u8 readkey[4]; |
| readkey[0] = index >> 24; |
| readkey[1] = index >> 16; |
| readkey[2] = index >> 8; |
| readkey[3] = index; |
| |
| if (send_command(APPLESMC_GET_KEY_BY_INDEX_CMD)) |
| return -EIO; |
| |
| for (i = 0; i < 4; i++) { |
| outb(readkey[i], APPLESMC_DATA_PORT); |
| if (__wait_status(0x04)) |
| return -EIO; |
| } |
| |
| outb(4, APPLESMC_DATA_PORT); |
| |
| for (i = 0; i < 4; i++) { |
| if (__wait_status(0x05)) |
| return -EIO; |
| key[i] = inb(APPLESMC_DATA_PORT); |
| } |
| key[4] = 0; |
| |
| return 0; |
| } |
| |
| /* |
| * applesmc_get_key_type - get key type, and put the result in type (char[6]). |
| * Returns zero on success or a negative error on failure. Callers must |
| * hold applesmc_lock. |
| */ |
| static int applesmc_get_key_type(char* key, char* type) |
| { |
| int i; |
| |
| if (send_command(APPLESMC_GET_KEY_TYPE_CMD)) |
| return -EIO; |
| |
| for (i = 0; i < 4; i++) { |
| outb(key[i], APPLESMC_DATA_PORT); |
| if (__wait_status(0x04)) |
| return -EIO; |
| } |
| |
| outb(6, APPLESMC_DATA_PORT); |
| |
| for (i = 0; i < 6; i++) { |
| if (__wait_status(0x05)) |
| return -EIO; |
| type[i] = inb(APPLESMC_DATA_PORT); |
| } |
| type[5] = 0; |
| |
| return 0; |
| } |
| |
| /* |
| * applesmc_read_motion_sensor - Read motion sensor (X, Y or Z). Callers must |
| * hold applesmc_lock. |
| */ |
| 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; |
| |
| mutex_lock(&applesmc_lock); |
| |
| 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: |
| mutex_unlock(&applesmc_lock); |
| return ret; |
| } |
| |
| /* |
| * applesmc_get_fan_count - get the number of fans. Callers must NOT hold |
| * applesmc_lock. |
| */ |
| static int applesmc_get_fan_count(void) |
| { |
| int ret; |
| u8 buffer[1]; |
| |
| mutex_lock(&applesmc_lock); |
| |
| ret = applesmc_read_key(FANS_COUNT, buffer, 1); |
| |
| mutex_unlock(&applesmc_lock); |
| 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_lock. |
| */ |
| static void applesmc_calibrate(void) |
| { |
| applesmc_read_motion_sensor(SENSOR_X, &rest_x); |
| applesmc_read_motion_sensor(SENSOR_Y, &rest_y); |
| rest_x = -rest_x; |
| } |
| |
| static void applesmc_idev_poll(struct input_polled_dev *dev) |
| { |
| struct input_dev *idev = dev->input; |
| s16 x, y; |
| |
| mutex_lock(&applesmc_lock); |
| |
| if (applesmc_read_motion_sensor(SENSOR_X, &x)) |
| goto out; |
| if (applesmc_read_motion_sensor(SENSOR_Y, &y)) |
| goto out; |
| |
| x = -x; |
| input_report_abs(idev, ABS_X, x - rest_x); |
| input_report_abs(idev, ABS_Y, y - rest_y); |
| input_sync(idev); |
| |
| out: |
| mutex_unlock(&applesmc_lock); |
| } |
| |
| /* Sysfs Files */ |
| |
| static ssize_t applesmc_name_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| return snprintf(buf, PAGE_SIZE, "applesmc\n"); |
| } |
| |
| static ssize_t applesmc_position_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| int ret; |
| s16 x, y, z; |
| |
| mutex_lock(&applesmc_lock); |
| |
| 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: |
| mutex_unlock(&applesmc_lock); |
| if (ret) |
| return ret; |
| else |
| return snprintf(buf, PAGE_SIZE, "(%d,%d,%d)\n", x, y, z); |
| } |
| |
| static ssize_t applesmc_light_show(struct device *dev, |
| struct device_attribute *attr, char *sysfsbuf) |
| { |
| static int data_length; |
| int ret; |
| u8 left = 0, right = 0; |
| u8 buffer[10], query[6]; |
| |
| mutex_lock(&applesmc_lock); |
| |
| if (!data_length) { |
| ret = applesmc_get_key_type(LIGHT_SENSOR_LEFT_KEY, query); |
| if (ret) |
| goto out; |
| data_length = clamp_val(query[0], 0, 10); |
| printk(KERN_INFO "applesmc: light sensor data length set to " |
| "%d\n", data_length); |
| } |
| |
| ret = applesmc_read_key(LIGHT_SENSOR_LEFT_KEY, buffer, data_length); |
| left = buffer[2]; |
| if (ret) |
| goto out; |
| ret = applesmc_read_key(LIGHT_SENSOR_RIGHT_KEY, buffer, data_length); |
| right = buffer[2]; |
| |
| out: |
| mutex_unlock(&applesmc_lock); |
| if (ret) |
| return ret; |
| else |
| return snprintf(sysfsbuf, PAGE_SIZE, "(%d,%d)\n", left, right); |
| } |
| |
| /* Displays degree Celsius * 1000 */ |
| static ssize_t applesmc_show_temperature(struct device *dev, |
| struct device_attribute *devattr, char *sysfsbuf) |
| { |
| int ret; |
| u8 buffer[2]; |
| unsigned int temp; |
| struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| const char* key = |
| temperature_sensors_sets[applesmc_temperature_set][attr->index]; |
| |
| mutex_lock(&applesmc_lock); |
| |
| ret = applesmc_read_key(key, buffer, 2); |
| temp = buffer[0]*1000; |
| temp += (buffer[1] >> 6) * 250; |
| |
| mutex_unlock(&applesmc_lock); |
| |
| if (ret) |
| return ret; |
| else |
| return snprintf(sysfsbuf, PAGE_SIZE, "%u\n", temp); |
| } |
| |
| static ssize_t applesmc_show_fan_speed(struct device *dev, |
| struct device_attribute *attr, char *sysfsbuf) |
| { |
| int ret; |
| unsigned int speed = 0; |
| char newkey[5]; |
| u8 buffer[2]; |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| |
| newkey[0] = fan_speed_keys[sensor_attr->nr][0]; |
| newkey[1] = '0' + sensor_attr->index; |
| newkey[2] = fan_speed_keys[sensor_attr->nr][2]; |
| newkey[3] = fan_speed_keys[sensor_attr->nr][3]; |
| newkey[4] = 0; |
| |
| mutex_lock(&applesmc_lock); |
| |
| ret = applesmc_read_key(newkey, buffer, 2); |
| speed = ((buffer[0] << 8 | buffer[1]) >> 2); |
| |
| mutex_unlock(&applesmc_lock); |
| if (ret) |
| return ret; |
| else |
| return snprintf(sysfsbuf, PAGE_SIZE, "%u\n", speed); |
| } |
| |
| static ssize_t applesmc_store_fan_speed(struct device *dev, |
| struct device_attribute *attr, |
| const char *sysfsbuf, size_t count) |
| { |
| int ret; |
| u32 speed; |
| char newkey[5]; |
| u8 buffer[2]; |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| |
| speed = simple_strtoul(sysfsbuf, NULL, 10); |
| |
| if (speed > 0x4000) /* Bigger than a 14-bit value */ |
| return -EINVAL; |
| |
| newkey[0] = fan_speed_keys[sensor_attr->nr][0]; |
| newkey[1] = '0' + sensor_attr->index; |
| newkey[2] = fan_speed_keys[sensor_attr->nr][2]; |
| newkey[3] = fan_speed_keys[sensor_attr->nr][3]; |
| newkey[4] = 0; |
| |
| mutex_lock(&applesmc_lock); |
| |
| buffer[0] = (speed >> 6) & 0xff; |
| buffer[1] = (speed << 2) & 0xff; |
| ret = applesmc_write_key(newkey, buffer, 2); |
| |
| mutex_unlock(&applesmc_lock); |
| if (ret) |
| return ret; |
| else |
| return count; |
| } |
| |
| static ssize_t applesmc_show_fan_manual(struct device *dev, |
| struct device_attribute *devattr, char *sysfsbuf) |
| { |
| int ret; |
| u16 manual = 0; |
| u8 buffer[2]; |
| struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| |
| mutex_lock(&applesmc_lock); |
| |
| ret = applesmc_read_key(FANS_MANUAL, buffer, 2); |
| manual = ((buffer[0] << 8 | buffer[1]) >> attr->index) & 0x01; |
| |
| mutex_unlock(&applesmc_lock); |
| if (ret) |
| return ret; |
| else |
| return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", manual); |
| } |
| |
| static ssize_t applesmc_store_fan_manual(struct device *dev, |
| struct device_attribute *devattr, |
| const char *sysfsbuf, size_t count) |
| { |
| int ret; |
| u8 buffer[2]; |
| u32 input; |
| u16 val; |
| struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| |
| input = simple_strtoul(sysfsbuf, NULL, 10); |
| |
| mutex_lock(&applesmc_lock); |
| |
| ret = applesmc_read_key(FANS_MANUAL, buffer, 2); |
| val = (buffer[0] << 8 | buffer[1]); |
| if (ret) |
| goto out; |
| |
| if (input) |
| val = val | (0x01 << attr->index); |
| else |
| val = val & ~(0x01 << attr->index); |
| |
| buffer[0] = (val >> 8) & 0xFF; |
| buffer[1] = val & 0xFF; |
| |
| ret = applesmc_write_key(FANS_MANUAL, buffer, 2); |
| |
| out: |
| mutex_unlock(&applesmc_lock); |
| if (ret) |
| return ret; |
| else |
| return count; |
| } |
| |
| static ssize_t applesmc_show_fan_position(struct device *dev, |
| struct device_attribute *attr, char *sysfsbuf) |
| { |
| int ret; |
| char newkey[5]; |
| u8 buffer[17]; |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| |
| newkey[0] = FAN_POSITION[0]; |
| newkey[1] = '0' + sensor_attr->index; |
| newkey[2] = FAN_POSITION[2]; |
| newkey[3] = FAN_POSITION[3]; |
| newkey[4] = 0; |
| |
| mutex_lock(&applesmc_lock); |
| |
| ret = applesmc_read_key(newkey, buffer, 16); |
| buffer[16] = 0; |
| |
| mutex_unlock(&applesmc_lock); |
| if (ret) |
| return ret; |
| else |
| return snprintf(sysfsbuf, PAGE_SIZE, "%s\n", buffer+4); |
| } |
| |
| static ssize_t applesmc_calibrate_show(struct device *dev, |
| struct device_attribute *attr, char *sysfsbuf) |
| { |
| return snprintf(sysfsbuf, PAGE_SIZE, "(%d,%d)\n", rest_x, rest_y); |
| } |
| |
| static ssize_t applesmc_calibrate_store(struct device *dev, |
| struct device_attribute *attr, const char *sysfsbuf, size_t count) |
| { |
| mutex_lock(&applesmc_lock); |
| applesmc_calibrate(); |
| mutex_unlock(&applesmc_lock); |
| |
| return count; |
| } |
| |
| /* Store the next backlight value to be written by the work */ |
| static unsigned int backlight_value; |
| |
| static void applesmc_backlight_set(struct work_struct *work) |
| { |
| u8 buffer[2]; |
| |
| mutex_lock(&applesmc_lock); |
| buffer[0] = backlight_value; |
| buffer[1] = 0x00; |
| applesmc_write_key(BACKLIGHT_KEY, buffer, 2); |
| mutex_unlock(&applesmc_lock); |
| } |
| static DECLARE_WORK(backlight_work, &applesmc_backlight_set); |
| |
| static void applesmc_brightness_set(struct led_classdev *led_cdev, |
| enum led_brightness value) |
| { |
| int ret; |
| |
| backlight_value = value; |
| ret = queue_work(applesmc_led_wq, &backlight_work); |
| |
| if (debug && (!ret)) |
| printk(KERN_DEBUG "applesmc: work was already on the queue.\n"); |
| } |
| |
| static ssize_t applesmc_key_count_show(struct device *dev, |
| struct device_attribute *attr, char *sysfsbuf) |
| { |
| int ret; |
| u8 buffer[4]; |
| u32 count; |
| |
| mutex_lock(&applesmc_lock); |
| |
| ret = applesmc_read_key(KEY_COUNT_KEY, buffer, 4); |
| count = ((u32)buffer[0]<<24) + ((u32)buffer[1]<<16) + |
| ((u32)buffer[2]<<8) + buffer[3]; |
| |
| mutex_unlock(&applesmc_lock); |
| if (ret) |
| return ret; |
| else |
| return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", count); |
| } |
| |
| static ssize_t applesmc_key_at_index_read_show(struct device *dev, |
| struct device_attribute *attr, char *sysfsbuf) |
| { |
| char key[5]; |
| char info[6]; |
| int ret; |
| |
| mutex_lock(&applesmc_lock); |
| |
| ret = applesmc_get_key_at_index(key_at_index, key); |
| |
| if (ret || !key[0]) { |
| mutex_unlock(&applesmc_lock); |
| |
| return -EINVAL; |
| } |
| |
| ret = applesmc_get_key_type(key, info); |
| |
| if (ret) { |
| mutex_unlock(&applesmc_lock); |
| |
| return ret; |
| } |
| |
| /* |
| * info[0] maximum value (APPLESMC_MAX_DATA_LENGTH) is much lower than |
| * PAGE_SIZE, so we don't need any checks before writing to sysfsbuf. |
| */ |
| ret = applesmc_read_key(key, sysfsbuf, info[0]); |
| |
| mutex_unlock(&applesmc_lock); |
| |
| if (!ret) { |
| return info[0]; |
| } else { |
| return ret; |
| } |
| } |
| |
| static ssize_t applesmc_key_at_index_data_length_show(struct device *dev, |
| struct device_attribute *attr, char *sysfsbuf) |
| { |
| char key[5]; |
| char info[6]; |
| int ret; |
| |
| mutex_lock(&applesmc_lock); |
| |
| ret = applesmc_get_key_at_index(key_at_index, key); |
| |
| if (ret || !key[0]) { |
| mutex_unlock(&applesmc_lock); |
| |
| return -EINVAL; |
| } |
| |
| ret = applesmc_get_key_type(key, info); |
| |
| mutex_unlock(&applesmc_lock); |
| |
| if (!ret) |
| return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", info[0]); |
| else |
| return ret; |
| } |
| |
| static ssize_t applesmc_key_at_index_type_show(struct device *dev, |
| struct device_attribute *attr, char *sysfsbuf) |
| { |
| char key[5]; |
| char info[6]; |
| int ret; |
| |
| mutex_lock(&applesmc_lock); |
| |
| ret = applesmc_get_key_at_index(key_at_index, key); |
| |
| if (ret || !key[0]) { |
| mutex_unlock(&applesmc_lock); |
| |
| return -EINVAL; |
| } |
| |
| ret = applesmc_get_key_type(key, info); |
| |
| mutex_unlock(&applesmc_lock); |
| |
| if (!ret) |
| return snprintf(sysfsbuf, PAGE_SIZE, "%s\n", info+1); |
| else |
| return ret; |
| } |
| |
| static ssize_t applesmc_key_at_index_name_show(struct device *dev, |
| struct device_attribute *attr, char *sysfsbuf) |
| { |
| char key[5]; |
| int ret; |
| |
| mutex_lock(&applesmc_lock); |
| |
| ret = applesmc_get_key_at_index(key_at_index, key); |
| |
| mutex_unlock(&applesmc_lock); |
| |
| if (!ret && key[0]) |
| return snprintf(sysfsbuf, PAGE_SIZE, "%s\n", key); |
| else |
| return -EINVAL; |
| } |
| |
| static ssize_t applesmc_key_at_index_show(struct device *dev, |
| struct device_attribute *attr, char *sysfsbuf) |
| { |
| return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", key_at_index); |
| } |
| |
| static ssize_t applesmc_key_at_index_store(struct device *dev, |
| struct device_attribute *attr, const char *sysfsbuf, size_t count) |
| { |
| mutex_lock(&applesmc_lock); |
| |
| key_at_index = simple_strtoul(sysfsbuf, NULL, 10); |
| |
| mutex_unlock(&applesmc_lock); |
| |
| return count; |
| } |
| |
| static struct led_classdev applesmc_backlight = { |
| .name = "smc::kbd_backlight", |
| .default_trigger = "nand-disk", |
| .brightness_set = applesmc_brightness_set, |
| }; |
| |
| static DEVICE_ATTR(name, 0444, applesmc_name_show, NULL); |
| |
| static DEVICE_ATTR(position, 0444, applesmc_position_show, NULL); |
| static DEVICE_ATTR(calibrate, 0644, |
| applesmc_calibrate_show, applesmc_calibrate_store); |
| |
| static struct attribute *accelerometer_attributes[] = { |
| &dev_attr_position.attr, |
| &dev_attr_calibrate.attr, |
| NULL |
| }; |
| |
| static const struct attribute_group accelerometer_attributes_group = |
| { .attrs = accelerometer_attributes }; |
| |
| static DEVICE_ATTR(light, 0444, applesmc_light_show, NULL); |
| |
| static DEVICE_ATTR(key_count, 0444, applesmc_key_count_show, NULL); |
| static DEVICE_ATTR(key_at_index, 0644, |
| applesmc_key_at_index_show, applesmc_key_at_index_store); |
| static DEVICE_ATTR(key_at_index_name, 0444, |
| applesmc_key_at_index_name_show, NULL); |
| static DEVICE_ATTR(key_at_index_type, 0444, |
| applesmc_key_at_index_type_show, NULL); |
| static DEVICE_ATTR(key_at_index_data_length, 0444, |
| applesmc_key_at_index_data_length_show, NULL); |
| static DEVICE_ATTR(key_at_index_data, 0444, |
| applesmc_key_at_index_read_show, NULL); |
| |
| static struct attribute *key_enumeration_attributes[] = { |
| &dev_attr_key_count.attr, |
| &dev_attr_key_at_index.attr, |
| &dev_attr_key_at_index_name.attr, |
| &dev_attr_key_at_index_type.attr, |
| &dev_attr_key_at_index_data_length.attr, |
| &dev_attr_key_at_index_data.attr, |
| NULL |
| }; |
| |
| static const struct attribute_group key_enumeration_group = |
| { .attrs = key_enumeration_attributes }; |
| |
| /* |
| * Macro defining SENSOR_DEVICE_ATTR for a fan sysfs entries. |
| * - show actual speed |
| * - show/store minimum speed |
| * - show maximum speed |
| * - show safe speed |
| * - show/store target speed |
| * - show/store manual mode |
| */ |
| #define sysfs_fan_speeds_offset(offset) \ |
| static SENSOR_DEVICE_ATTR_2(fan##offset##_input, S_IRUGO, \ |
| applesmc_show_fan_speed, NULL, 0, offset-1); \ |
| \ |
| static SENSOR_DEVICE_ATTR_2(fan##offset##_min, S_IRUGO | S_IWUSR, \ |
| applesmc_show_fan_speed, applesmc_store_fan_speed, 1, offset-1); \ |
| \ |
| static SENSOR_DEVICE_ATTR_2(fan##offset##_max, S_IRUGO, \ |
| applesmc_show_fan_speed, NULL, 2, offset-1); \ |
| \ |
| static SENSOR_DEVICE_ATTR_2(fan##offset##_safe, S_IRUGO, \ |
| applesmc_show_fan_speed, NULL, 3, offset-1); \ |
| \ |
| static SENSOR_DEVICE_ATTR_2(fan##offset##_output, S_IRUGO | S_IWUSR, \ |
| applesmc_show_fan_speed, applesmc_store_fan_speed, 4, offset-1); \ |
| \ |
| static SENSOR_DEVICE_ATTR(fan##offset##_manual, S_IRUGO | S_IWUSR, \ |
| applesmc_show_fan_manual, applesmc_store_fan_manual, offset-1); \ |
| \ |
| static SENSOR_DEVICE_ATTR(fan##offset##_label, S_IRUGO, \ |
| applesmc_show_fan_position, NULL, offset-1); \ |
| \ |
| static struct attribute *fan##offset##_attributes[] = { \ |
| &sensor_dev_attr_fan##offset##_input.dev_attr.attr, \ |
| &sensor_dev_attr_fan##offset##_min.dev_attr.attr, \ |
| &sensor_dev_attr_fan##offset##_max.dev_attr.attr, \ |
| &sensor_dev_attr_fan##offset##_safe.dev_attr.attr, \ |
| &sensor_dev_attr_fan##offset##_output.dev_attr.attr, \ |
| &sensor_dev_attr_fan##offset##_manual.dev_attr.attr, \ |
| &sensor_dev_attr_fan##offset##_label.dev_attr.attr, \ |
| NULL \ |
| }; |
| |
| /* |
| * Create the needed functions for each fan using the macro defined above |
| * (4 fans are supported) |
| */ |
| sysfs_fan_speeds_offset(1); |
| sysfs_fan_speeds_offset(2); |
| sysfs_fan_speeds_offset(3); |
| sysfs_fan_speeds_offset(4); |
| |
| static const struct attribute_group fan_attribute_groups[] = { |
| { .attrs = fan1_attributes }, |
| { .attrs = fan2_attributes }, |
| { .attrs = fan3_attributes }, |
| { .attrs = fan4_attributes }, |
| }; |
| |
| /* |
| * Temperature sensors sysfs entries. |
| */ |
| static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 0); |
| static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 1); |
| static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 2); |
| static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 3); |
| static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 4); |
| static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 5); |
| static SENSOR_DEVICE_ATTR(temp7_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 6); |
| static SENSOR_DEVICE_ATTR(temp8_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 7); |
| static SENSOR_DEVICE_ATTR(temp9_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 8); |
| static SENSOR_DEVICE_ATTR(temp10_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 9); |
| static SENSOR_DEVICE_ATTR(temp11_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 10); |
| static SENSOR_DEVICE_ATTR(temp12_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 11); |
| static SENSOR_DEVICE_ATTR(temp13_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 12); |
| static SENSOR_DEVICE_ATTR(temp14_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 13); |
| static SENSOR_DEVICE_ATTR(temp15_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 14); |
| static SENSOR_DEVICE_ATTR(temp16_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 15); |
| static SENSOR_DEVICE_ATTR(temp17_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 16); |
| static SENSOR_DEVICE_ATTR(temp18_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 17); |
| static SENSOR_DEVICE_ATTR(temp19_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 18); |
| static SENSOR_DEVICE_ATTR(temp20_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 19); |
| static SENSOR_DEVICE_ATTR(temp21_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 20); |
| static SENSOR_DEVICE_ATTR(temp22_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 21); |
| static SENSOR_DEVICE_ATTR(temp23_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 22); |
| static SENSOR_DEVICE_ATTR(temp24_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 23); |
| static SENSOR_DEVICE_ATTR(temp25_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 24); |
| static SENSOR_DEVICE_ATTR(temp26_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 25); |
| static SENSOR_DEVICE_ATTR(temp27_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 26); |
| static SENSOR_DEVICE_ATTR(temp28_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 27); |
| static SENSOR_DEVICE_ATTR(temp29_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 28); |
| static SENSOR_DEVICE_ATTR(temp30_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 29); |
| static SENSOR_DEVICE_ATTR(temp31_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 30); |
| static SENSOR_DEVICE_ATTR(temp32_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 31); |
| static SENSOR_DEVICE_ATTR(temp33_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 32); |
| static SENSOR_DEVICE_ATTR(temp34_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 33); |
| static SENSOR_DEVICE_ATTR(temp35_input, S_IRUGO, |
| applesmc_show_temperature, NULL, 34); |
| |
| static struct attribute *temperature_attributes[] = { |
| &sensor_dev_attr_temp1_input.dev_attr.attr, |
| &sensor_dev_attr_temp2_input.dev_attr.attr, |
| &sensor_dev_attr_temp3_input.dev_attr.attr, |
| &sensor_dev_attr_temp4_input.dev_attr.attr, |
| &sensor_dev_attr_temp5_input.dev_attr.attr, |
| &sensor_dev_attr_temp6_input.dev_attr.attr, |
| &sensor_dev_attr_temp7_input.dev_attr.attr, |
| &sensor_dev_attr_temp8_input.dev_attr.attr, |
| &sensor_dev_attr_temp9_input.dev_attr.attr, |
| &sensor_dev_attr_temp10_input.dev_attr.attr, |
| &sensor_dev_attr_temp11_input.dev_attr.attr, |
| &sensor_dev_attr_temp12_input.dev_attr.attr, |
| &sensor_dev_attr_temp13_input.dev_attr.attr, |
| &sensor_dev_attr_temp14_input.dev_attr.attr, |
| &sensor_dev_attr_temp15_input.dev_attr.attr, |
| &sensor_dev_attr_temp16_input.dev_attr.attr, |
| &sensor_dev_attr_temp17_input.dev_attr.attr, |
| &sensor_dev_attr_temp18_input.dev_attr.attr, |
| &sensor_dev_attr_temp19_input.dev_attr.attr, |
| &sensor_dev_attr_temp20_input.dev_attr.attr, |
| &sensor_dev_attr_temp21_input.dev_attr.attr, |
| &sensor_dev_attr_temp22_input.dev_attr.attr, |
| &sensor_dev_attr_temp23_input.dev_attr.attr, |
| &sensor_dev_attr_temp24_input.dev_attr.attr, |
| &sensor_dev_attr_temp25_input.dev_attr.attr, |
| &sensor_dev_attr_temp26_input.dev_attr.attr, |
| &sensor_dev_attr_temp27_input.dev_attr.attr, |
| &sensor_dev_attr_temp28_input.dev_attr.attr, |
| &sensor_dev_attr_temp29_input.dev_attr.attr, |
| &sensor_dev_attr_temp30_input.dev_attr.attr, |
| &sensor_dev_attr_temp31_input.dev_attr.attr, |
| &sensor_dev_attr_temp32_input.dev_attr.attr, |
| &sensor_dev_attr_temp33_input.dev_attr.attr, |
| &sensor_dev_attr_temp34_input.dev_attr.attr, |
| &sensor_dev_attr_temp35_input.dev_attr.attr, |
| NULL |
| }; |
| |
| static const struct attribute_group temperature_attributes_group = |
| { .attrs = temperature_attributes }; |
| |
| /* Module stuff */ |
| |
| /* |
| * applesmc_dmi_match - found a match. return one, short-circuiting the hunt. |
| */ |
| static int applesmc_dmi_match(const struct dmi_system_id *id) |
| { |
| int i = 0; |
| struct dmi_match_data* dmi_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) |
| { |
| struct input_dev *idev; |
| int ret; |
| |
| ret = sysfs_create_group(&pdev->dev.kobj, |
| &accelerometer_attributes_group); |
| if (ret) |
| goto out; |
| |
| applesmc_idev = input_allocate_polled_device(); |
| if (!applesmc_idev) { |
| ret = -ENOMEM; |
| goto out_sysfs; |
| } |
| |
| applesmc_idev->poll = applesmc_idev_poll; |
| applesmc_idev->poll_interval = APPLESMC_POLL_INTERVAL; |
| |
| /* initial calibrate for the input device */ |
| applesmc_calibrate(); |
| |
| /* initialize the input device */ |
| idev = applesmc_idev->input; |
| idev->name = "applesmc"; |
| idev->id.bustype = BUS_HOST; |
| idev->dev.parent = &pdev->dev; |
| idev->evbit[0] = BIT_MASK(EV_ABS); |
| input_set_abs_params(idev, ABS_X, |
| -256, 256, APPLESMC_INPUT_FUZZ, APPLESMC_INPUT_FLAT); |
| input_set_abs_params(idev, ABS_Y, |
| -256, 256, APPLESMC_INPUT_FUZZ, APPLESMC_INPUT_FLAT); |
| |
| ret = input_register_polled_device(applesmc_idev); |
| if (ret) |
| goto out_idev; |
| |
| return 0; |
| |
| out_idev: |
| input_free_polled_device(applesmc_idev); |
| |
| out_sysfs: |
| sysfs_remove_group(&pdev->dev.kobj, &accelerometer_attributes_group); |
| |
| 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) |
| { |
| input_unregister_polled_device(applesmc_idev); |
| input_free_polled_device(applesmc_idev); |
| sysfs_remove_group(&pdev->dev.kobj, &accelerometer_attributes_group); |
| } |
| |
| static __initdata struct dmi_match_data applesmc_dmi_data[] = { |
| /* MacBook Pro: accelerometer, backlight and temperature set 0 */ |
| { .accelerometer = 1, .light = 1, .temperature_set = 0 }, |
| /* MacBook2: accelerometer and temperature set 1 */ |
| { .accelerometer = 1, .light = 0, .temperature_set = 1 }, |
| /* MacBook: accelerometer and temperature set 2 */ |
| { .accelerometer = 1, .light = 0, .temperature_set = 2 }, |
| /* MacMini: temperature set 3 */ |
| { .accelerometer = 0, .light = 0, .temperature_set = 3 }, |
| /* MacPro: temperature set 4 */ |
| { .accelerometer = 0, .light = 0, .temperature_set = 4 }, |
| /* iMac: temperature set 5 */ |
| { .accelerometer = 0, .light = 0, .temperature_set = 5 }, |
| /* MacBook3: accelerometer and temperature set 6 */ |
| { .accelerometer = 1, .light = 0, .temperature_set = 6 }, |
| /* MacBook Air: accelerometer, backlight and temperature set 7 */ |
| { .accelerometer = 1, .light = 1, .temperature_set = 7 }, |
| /* MacBook Pro 4: accelerometer, backlight and temperature set 8 */ |
| { .accelerometer = 1, .light = 1, .temperature_set = 8 }, |
| /* MacBook Pro 3: accelerometer, backlight and temperature set 9 */ |
| { .accelerometer = 1, .light = 1, .temperature_set = 9 }, |
| /* iMac 5: light sensor only, temperature set 10 */ |
| { .accelerometer = 0, .light = 0, .temperature_set = 10 }, |
| /* MacBook 5: accelerometer, backlight and temperature set 11 */ |
| { .accelerometer = 1, .light = 1, .temperature_set = 11 }, |
| }; |
| |
| /* Note that DMI_MATCH(...,"MacBook") will match "MacBookPro1,1". |
| * So we need to put "Apple MacBook Pro" before "Apple MacBook". */ |
| static __initdata struct dmi_system_id applesmc_whitelist[] = { |
| { applesmc_dmi_match, "Apple MacBook Air", { |
| DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), |
| DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir") }, |
| &applesmc_dmi_data[7]}, |
| { applesmc_dmi_match, "Apple MacBook Pro 4", { |
| DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), |
| DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro4") }, |
| &applesmc_dmi_data[8]}, |
| { applesmc_dmi_match, "Apple MacBook Pro 3", { |
| DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), |
| DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro3") }, |
| &applesmc_dmi_data[9]}, |
| { applesmc_dmi_match, "Apple MacBook Pro", { |
| DMI_MATCH(DMI_BOARD_VENDOR,"Apple"), |
| DMI_MATCH(DMI_PRODUCT_NAME,"MacBookPro") }, |
| &applesmc_dmi_data[0]}, |
| { applesmc_dmi_match, "Apple MacBook (v2)", { |
| DMI_MATCH(DMI_BOARD_VENDOR,"Apple"), |
| DMI_MATCH(DMI_PRODUCT_NAME,"MacBook2") }, |
| &applesmc_dmi_data[1]}, |
| { applesmc_dmi_match, "Apple MacBook (v3)", { |
| DMI_MATCH(DMI_BOARD_VENDOR,"Apple"), |
| DMI_MATCH(DMI_PRODUCT_NAME,"MacBook3") }, |
| &applesmc_dmi_data[6]}, |
| { applesmc_dmi_match, "Apple MacBook 5", { |
| DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), |
| DMI_MATCH(DMI_PRODUCT_NAME, "MacBook5") }, |
| &applesmc_dmi_data[11]}, |
| { applesmc_dmi_match, "Apple MacBook", { |
| DMI_MATCH(DMI_BOARD_VENDOR,"Apple"), |
| DMI_MATCH(DMI_PRODUCT_NAME,"MacBook") }, |
| &applesmc_dmi_data[2]}, |
| { applesmc_dmi_match, "Apple Macmini", { |
| DMI_MATCH(DMI_BOARD_VENDOR,"Apple"), |
| DMI_MATCH(DMI_PRODUCT_NAME,"Macmini") }, |
| &applesmc_dmi_data[3]}, |
| { applesmc_dmi_match, "Apple MacPro2", { |
| DMI_MATCH(DMI_BOARD_VENDOR,"Apple"), |
| DMI_MATCH(DMI_PRODUCT_NAME,"MacPro2") }, |
| &applesmc_dmi_data[4]}, |
| { applesmc_dmi_match, "Apple iMac 5", { |
| DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), |
| DMI_MATCH(DMI_PRODUCT_NAME, "iMac5") }, |
| &applesmc_dmi_data[10]}, |
| { applesmc_dmi_match, "Apple iMac", { |
| DMI_MATCH(DMI_BOARD_VENDOR,"Apple"), |
| DMI_MATCH(DMI_PRODUCT_NAME,"iMac") }, |
| &applesmc_dmi_data[5]}, |
| { .ident = NULL } |
| }; |
| |
| static int __init applesmc_init(void) |
| { |
| int ret; |
| int count; |
| int i; |
| |
| 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", APPLESMC_DATA_PORT, |
| NULL, 0); |
| if (IS_ERR(pdev)) { |
| ret = PTR_ERR(pdev); |
| goto out_driver; |
| } |
| |
| ret = sysfs_create_file(&pdev->dev.kobj, &dev_attr_name.attr); |
| if (ret) |
| goto out_device; |
| |
| /* Create key enumeration sysfs files */ |
| ret = sysfs_create_group(&pdev->dev.kobj, &key_enumeration_group); |
| if (ret) |
| goto out_name; |
| |
| /* create fan files */ |
| count = applesmc_get_fan_count(); |
| if (count < 0) { |
| printk(KERN_ERR "applesmc: Cannot get the number of fans.\n"); |
| } else { |
| printk(KERN_INFO "applesmc: %d fans found.\n", count); |
| |
| switch (count) { |
| default: |
| printk(KERN_WARNING "applesmc: More than 4 fans found," |
| " but at most 4 fans are supported" |
| " by the driver.\n"); |
| case 4: |
| ret = sysfs_create_group(&pdev->dev.kobj, |
| &fan_attribute_groups[3]); |
| if (ret) |
| goto out_key_enumeration; |
| case 3: |
| ret = sysfs_create_group(&pdev->dev.kobj, |
| &fan_attribute_groups[2]); |
| if (ret) |
| goto out_key_enumeration; |
| case 2: |
| ret = sysfs_create_group(&pdev->dev.kobj, |
| &fan_attribute_groups[1]); |
| if (ret) |
| goto out_key_enumeration; |
| case 1: |
| ret = sysfs_create_group(&pdev->dev.kobj, |
| &fan_attribute_groups[0]); |
| if (ret) |
| goto out_fan_1; |
| case 0: |
| ; |
| } |
| } |
| |
| for (i = 0; |
| temperature_sensors_sets[applesmc_temperature_set][i] != NULL; |
| i++) { |
| if (temperature_attributes[i] == NULL) { |
| printk(KERN_ERR "applesmc: More temperature sensors " |
| "in temperature_sensors_sets (at least %i)" |
| "than available sysfs files in " |
| "temperature_attributes (%i), please report " |
| "this bug.\n", i, i-1); |
| goto out_temperature; |
| } |
| ret = sysfs_create_file(&pdev->dev.kobj, |
| temperature_attributes[i]); |
| if (ret) |
| goto out_temperature; |
| } |
| |
| if (applesmc_accelerometer) { |
| ret = applesmc_create_accelerometer(); |
| if (ret) |
| goto out_temperature; |
| } |
| |
| if (applesmc_light) { |
| /* Add light sensor file */ |
| ret = sysfs_create_file(&pdev->dev.kobj, &dev_attr_light.attr); |
| if (ret) |
| goto out_accelerometer; |
| |
| /* Create the workqueue */ |
| applesmc_led_wq = create_singlethread_workqueue("applesmc-led"); |
| if (!applesmc_led_wq) { |
| ret = -ENOMEM; |
| goto out_light_sysfs; |
| } |
| |
| /* register as a led device */ |
| ret = led_classdev_register(&pdev->dev, &applesmc_backlight); |
| if (ret < 0) |
| goto out_light_wq; |
| } |
| |
| hwmon_dev = hwmon_device_register(&pdev->dev); |
| if (IS_ERR(hwmon_dev)) { |
| ret = PTR_ERR(hwmon_dev); |
| goto out_light_ledclass; |
| } |
| |
| printk(KERN_INFO "applesmc: driver successfully loaded.\n"); |
| |
| return 0; |
| |
| out_light_ledclass: |
| if (applesmc_light) |
| led_classdev_unregister(&applesmc_backlight); |
| out_light_wq: |
| if (applesmc_light) |
| destroy_workqueue(applesmc_led_wq); |
| out_light_sysfs: |
| if (applesmc_light) |
| sysfs_remove_file(&pdev->dev.kobj, &dev_attr_light.attr); |
| out_accelerometer: |
| if (applesmc_accelerometer) |
| applesmc_release_accelerometer(); |
| out_temperature: |
| sysfs_remove_group(&pdev->dev.kobj, &temperature_attributes_group); |
| sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[0]); |
| out_fan_1: |
| sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[1]); |
| out_key_enumeration: |
| sysfs_remove_group(&pdev->dev.kobj, &key_enumeration_group); |
| out_name: |
| sysfs_remove_file(&pdev->dev.kobj, &dev_attr_name.attr); |
| 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) |
| { |
| hwmon_device_unregister(hwmon_dev); |
| if (applesmc_light) { |
| led_classdev_unregister(&applesmc_backlight); |
| destroy_workqueue(applesmc_led_wq); |
| sysfs_remove_file(&pdev->dev.kobj, &dev_attr_light.attr); |
| } |
| if (applesmc_accelerometer) |
| applesmc_release_accelerometer(); |
| sysfs_remove_group(&pdev->dev.kobj, &temperature_attributes_group); |
| sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[0]); |
| sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[1]); |
| sysfs_remove_group(&pdev->dev.kobj, &key_enumeration_group); |
| sysfs_remove_file(&pdev->dev.kobj, &dev_attr_name.attr); |
| 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"); |