diff options
Diffstat (limited to 'drivers/hwmon/applesmc.c')
| -rw-r--r-- | drivers/hwmon/applesmc.c | 1610 |
1 files changed, 685 insertions, 925 deletions
diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c index c1605b528e8..3288f13d2d8 100644 --- a/drivers/hwmon/applesmc.c +++ b/drivers/hwmon/applesmc.c @@ -4,10 +4,11 @@ * computers. * * Copyright (C) 2007 Nicolas Boichat <nicolas@boichat.ch> + * Copyright (C) 2010 Henrik Rydberg <rydberg@euromail.se> * * Based on hdaps.c driver: * Copyright (C) 2005 Robert Love <rml@novell.com> - * Copyright (C) 2005 Jesper Juhl <jesper.juhl@gmail.com> + * Copyright (C) 2005 Jesper Juhl <jj@chaosbits.net> * * Fan control based on smcFanControl: * Copyright (C) 2006 Hendrik Holtmann <holtmann@mac.com> @@ -26,10 +27,13 @@ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/delay.h> #include <linux/platform_device.h> #include <linux/input-polldev.h> #include <linux/kernel.h> +#include <linux/slab.h> #include <linux/module.h> #include <linux/timer.h> #include <linux/dmi.h> @@ -39,6 +43,7 @@ #include <linux/leds.h> #include <linux/hwmon.h> #include <linux/workqueue.h> +#include <linux/err.h> /* data port used by Apple SMC */ #define APPLESMC_DATA_PORT 0x300 @@ -49,10 +54,11 @@ #define APPLESMC_MAX_DATA_LENGTH 32 -#define APPLESMC_MIN_WAIT 0x0040 -#define APPLESMC_MAX_WAIT 0x8000 +/* wait up to 128 ms for a status change. */ +#define APPLESMC_MIN_WAIT 0x0010 +#define APPLESMC_RETRY_WAIT 0x0100 +#define APPLESMC_MAX_WAIT 0x20000 -#define APPLESMC_STATUS_MASK 0x0f #define APPLESMC_READ_CMD 0x10 #define APPLESMC_WRITE_CMD 0x11 #define APPLESMC_GET_KEY_BY_INDEX_CMD 0x12 @@ -73,84 +79,17 @@ #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] */ +#define FAN_ID_FMT "F%dID" /* r-o char[16] */ -/* - * Temperature sensors keys (sp78 - 2 bytes). - */ -static const char *temperature_sensors_sets[][41] = { -/* 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 }, -/* Set 12: Macbook Pro 5,1 */ - { "TB0T", "TB1T", "TB2T", "TB3T", "TC0D", "TC0F", "TC0P", "TG0D", - "TG0F", "TG0H", "TG0P", "TG0T", "TG1H", "TN0D", "TN0P", "TTF0", - "Th2H", "Tm0P", "Ts0P", "Ts0S", NULL }, -/* Set 13: iMac 8,1 */ - { "TA0P", "TC0D", "TC0H", "TC0P", "TG0D", "TG0H", "TG0P", "TH0P", - "TL0P", "TO0P", "TW0P", "Tm0P", "Tp0P", NULL }, -/* Set 14: iMac 6,1 */ - { "TA0P", "TC0D", "TC0H", "TC0P", "TG0D", "TG0H", "TG0P", "TH0P", - "TO0P", "Tp0P", NULL }, -/* Set 15: MacBook Air 2,1 */ - { "TB0T", "TB1S", "TB1T", "TB2S", "TB2T", "TC0D", "TN0D", "TTF0", - "TV0P", "TVFP", "TW0P", "Th0P", "Tp0P", "Tp1P", "TpFP", "Ts0P", - "Ts0S", NULL }, -/* Set 16: Mac Pro 3,1 (2 x Quad-Core) */ - { "TA0P", "TCAG", "TCAH", "TCBG", "TCBH", "TC0C", "TC0D", "TC0P", - "TC1C", "TC1D", "TC2C", "TC2D", "TC3C", "TC3D", "TH0P", "TH1P", - "TH2P", "TH3P", "TMAP", "TMAS", "TMBS", "TM0P", "TM0S", "TM1P", - "TM1S", "TM2P", "TM2S", "TM3S", "TM8P", "TM8S", "TM9P", "TM9S", - "TN0C", "TN0D", "TN0H", "TS0C", "Tp0C", "Tp1C", "Tv0S", "Tv1S", - NULL }, -}; +#define TEMP_SENSOR_TYPE "sp78" /* 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 +static const char *const fan_speed_fmt[] = { + "F%dAc", /* actual speed */ + "F%dMn", /* minimum speed (rw) */ + "F%dMx", /* maximum speed */ + "F%dSf", /* safe speed - not all models */ + "F%dTg", /* target speed (manual: rw) */ }; #define INIT_TIMEOUT_MSECS 5000 /* wait up to 5s for device init ... */ @@ -160,18 +99,50 @@ static const char* fan_speed_keys[] = { #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; +#define to_index(attr) (to_sensor_dev_attr(attr)->index & 0xffff) +#define to_option(attr) (to_sensor_dev_attr(attr)->index >> 16) + +/* Dynamic device node attributes */ +struct applesmc_dev_attr { + struct sensor_device_attribute sda; /* hwmon attributes */ + char name[32]; /* room for node file name */ +}; + +/* Dynamic device node group */ +struct applesmc_node_group { + char *format; /* format string */ + void *show; /* show function */ + void *store; /* store function */ + int option; /* function argument */ + struct applesmc_dev_attr *nodes; /* dynamic node array */ +}; + +/* AppleSMC entry - cached register information */ +struct applesmc_entry { + char key[5]; /* four-letter key code */ + u8 valid; /* set when entry is successfully read once */ + u8 len; /* bounded by APPLESMC_MAX_DATA_LENGTH */ + char type[5]; /* four-letter type code */ + u8 flags; /* 0x10: func; 0x40: write; 0x80: read */ +}; + +/* Register lookup and registers common to all SMCs */ +static struct applesmc_registers { + struct mutex mutex; /* register read/write mutex */ + unsigned int key_count; /* number of SMC registers */ + unsigned int fan_count; /* number of fans */ + unsigned int temp_count; /* number of temperature registers */ + unsigned int temp_begin; /* temperature lower index bound */ + unsigned int temp_end; /* temperature upper index bound */ + unsigned int index_count; /* size of temperature index array */ + int num_light_sensors; /* number of light sensors */ + bool has_accelerometer; /* has motion sensor */ + bool has_key_backlight; /* has keyboard backlight */ + bool init_complete; /* true when fully initialized */ + struct applesmc_entry *cache; /* cached key entries */ + const char **index; /* temperature key index */ +} smcreg = { + .mutex = __MUTEX_INITIALIZER(smcreg.mutex), }; static const int debug; @@ -183,17 +154,6 @@ static u8 backlight_state[2]; 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. @@ -203,287 +163,479 @@ 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 + * wait_read - Wait for a byte to appear on SMC port. Callers must * hold applesmc_lock. */ -static int __wait_status(u8 val) +static int wait_read(void) { + u8 status; 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); + status = inb(APPLESMC_CMD_PORT); + /* read: wait for smc to settle */ + if (status & 0x01) return 0; - } } - printk(KERN_WARNING "applesmc: wait status failed: %x != %x\n", - val, inb(APPLESMC_CMD_PORT)); - + pr_warn("wait_read() fail: 0x%02x\n", status); 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. + * send_byte - Write to SMC port, retrying when necessary. Callers + * must hold applesmc_lock. */ -static int send_command(u8 cmd) +static int send_byte(u8 cmd, u16 port) { + u8 status; int us; + + outb(cmd, port); 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) + status = inb(APPLESMC_CMD_PORT); + /* write: wait for smc to settle */ + if (status & 0x02) + continue; + /* ready: cmd accepted, return */ + if (status & 0x04) return 0; + /* timeout: give up */ + if (us << 1 == APPLESMC_MAX_WAIT) + break; + /* busy: long wait and resend */ + udelay(APPLESMC_RETRY_WAIT); + outb(cmd, port); } - printk(KERN_WARNING "applesmc: command failed: %x -> %x\n", - cmd, inb(APPLESMC_CMD_PORT)); + + pr_warn("send_byte(0x%02x, 0x%04x) fail: 0x%02x\n", cmd, port, status); 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) +static int send_command(u8 cmd) +{ + return send_byte(cmd, APPLESMC_CMD_PORT); +} + +static int send_argument(const char *key) { 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; - } + for (i = 0; i < 4; i++) + if (send_byte(key[i], APPLESMC_DATA_PORT)) + return -EIO; + return 0; +} - if (send_command(APPLESMC_READ_CMD)) - return -EIO; +static int read_smc(u8 cmd, const char *key, u8 *buffer, u8 len) +{ + u8 status, data = 0; + int i; - for (i = 0; i < 4; i++) { - outb(key[i], APPLESMC_DATA_PORT); - if (__wait_status(0x04)) - return -EIO; + if (send_command(cmd) || send_argument(key)) { + pr_warn("%.4s: read arg fail\n", key); + return -EIO; } - if (debug) - printk(KERN_DEBUG "<%s", key); - outb(len, APPLESMC_DATA_PORT); - if (debug) - printk(KERN_DEBUG ">%x", len); + /* This has no effect on newer (2012) SMCs */ + if (send_byte(len, APPLESMC_DATA_PORT)) { + pr_warn("%.4s: read len fail\n", key); + return -EIO; + } for (i = 0; i < len; i++) { - if (__wait_status(0x05)) + if (wait_read()) { + pr_warn("%.4s: read data[%d] fail\n", key, i); return -EIO; + } buffer[i] = inb(APPLESMC_DATA_PORT); - if (debug) - printk(KERN_DEBUG "<%x", buffer[i]); } - if (debug) - printk(KERN_DEBUG "\n"); + + /* Read the data port until bit0 is cleared */ + for (i = 0; i < 16; i++) { + udelay(APPLESMC_MIN_WAIT); + status = inb(APPLESMC_CMD_PORT); + if (!(status & 0x01)) + break; + data = inb(APPLESMC_DATA_PORT); + } + if (i) + pr_warn("flushed %d bytes, last value is: %d\n", i, data); 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) +static int write_smc(u8 cmd, const char *key, const 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(cmd) || send_argument(key)) { + pr_warn("%s: write arg fail\n", key); + return -EIO; } - if (send_command(APPLESMC_WRITE_CMD)) + if (send_byte(len, APPLESMC_DATA_PORT)) { + pr_warn("%.4s: write len fail\n", key); 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)) + if (send_byte(buffer[i], APPLESMC_DATA_PORT)) { + pr_warn("%s: write data fail\n", key); return -EIO; - outb(buffer[i], APPLESMC_DATA_PORT); + } } return 0; } +static int read_register_count(unsigned int *count) +{ + __be32 be; + int ret; + + ret = read_smc(APPLESMC_READ_CMD, KEY_COUNT_KEY, (u8 *)&be, 4); + if (ret) + return ret; + + *count = be32_to_cpu(be); + 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. + * Serialized I/O + * + * Returns zero on success or a negative error on failure. + * All functions below are concurrency safe - callers should NOT hold lock. */ -static int applesmc_get_key_at_index(int index, char* key) + +static int applesmc_read_entry(const struct applesmc_entry *entry, + u8 *buf, u8 len) { - int i; - u8 readkey[4]; - readkey[0] = index >> 24; - readkey[1] = index >> 16; - readkey[2] = index >> 8; - readkey[3] = index; + int ret; - if (send_command(APPLESMC_GET_KEY_BY_INDEX_CMD)) - return -EIO; + if (entry->len != len) + return -EINVAL; + mutex_lock(&smcreg.mutex); + ret = read_smc(APPLESMC_READ_CMD, entry->key, buf, len); + mutex_unlock(&smcreg.mutex); - for (i = 0; i < 4; i++) { - outb(readkey[i], APPLESMC_DATA_PORT); - if (__wait_status(0x04)) - return -EIO; + return ret; +} + +static int applesmc_write_entry(const struct applesmc_entry *entry, + const u8 *buf, u8 len) +{ + int ret; + + if (entry->len != len) + return -EINVAL; + mutex_lock(&smcreg.mutex); + ret = write_smc(APPLESMC_WRITE_CMD, entry->key, buf, len); + mutex_unlock(&smcreg.mutex); + return ret; +} + +static const struct applesmc_entry *applesmc_get_entry_by_index(int index) +{ + struct applesmc_entry *cache = &smcreg.cache[index]; + u8 key[4], info[6]; + __be32 be; + int ret = 0; + + if (cache->valid) + return cache; + + mutex_lock(&smcreg.mutex); + + if (cache->valid) + goto out; + be = cpu_to_be32(index); + ret = read_smc(APPLESMC_GET_KEY_BY_INDEX_CMD, (u8 *)&be, key, 4); + if (ret) + goto out; + ret = read_smc(APPLESMC_GET_KEY_TYPE_CMD, key, info, 6); + if (ret) + goto out; + + memcpy(cache->key, key, 4); + cache->len = info[0]; + memcpy(cache->type, &info[1], 4); + cache->flags = info[5]; + cache->valid = 1; + +out: + mutex_unlock(&smcreg.mutex); + if (ret) + return ERR_PTR(ret); + return cache; +} + +static int applesmc_get_lower_bound(unsigned int *lo, const char *key) +{ + int begin = 0, end = smcreg.key_count; + const struct applesmc_entry *entry; + + while (begin != end) { + int middle = begin + (end - begin) / 2; + entry = applesmc_get_entry_by_index(middle); + if (IS_ERR(entry)) { + *lo = 0; + return PTR_ERR(entry); + } + if (strcmp(entry->key, key) < 0) + begin = middle + 1; + else + end = middle; } - outb(4, APPLESMC_DATA_PORT); + *lo = begin; + return 0; +} - for (i = 0; i < 4; i++) { - if (__wait_status(0x05)) - return -EIO; - key[i] = inb(APPLESMC_DATA_PORT); +static int applesmc_get_upper_bound(unsigned int *hi, const char *key) +{ + int begin = 0, end = smcreg.key_count; + const struct applesmc_entry *entry; + + while (begin != end) { + int middle = begin + (end - begin) / 2; + entry = applesmc_get_entry_by_index(middle); + if (IS_ERR(entry)) { + *hi = smcreg.key_count; + return PTR_ERR(entry); + } + if (strcmp(key, entry->key) < 0) + end = middle; + else + begin = middle + 1; } - key[4] = 0; + *hi = begin; 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) +static const struct applesmc_entry *applesmc_get_entry_by_key(const char *key) { - int i; + int begin, end; + int ret; - if (send_command(APPLESMC_GET_KEY_TYPE_CMD)) - return -EIO; + ret = applesmc_get_lower_bound(&begin, key); + if (ret) + return ERR_PTR(ret); + ret = applesmc_get_upper_bound(&end, key); + if (ret) + return ERR_PTR(ret); + if (end - begin != 1) + return ERR_PTR(-EINVAL); - for (i = 0; i < 4; i++) { - outb(key[i], APPLESMC_DATA_PORT); - if (__wait_status(0x04)) - return -EIO; - } + return applesmc_get_entry_by_index(begin); +} - outb(6, APPLESMC_DATA_PORT); +static int applesmc_read_key(const char *key, u8 *buffer, u8 len) +{ + const struct applesmc_entry *entry; - for (i = 0; i < 6; i++) { - if (__wait_status(0x05)) - return -EIO; - type[i] = inb(APPLESMC_DATA_PORT); - } - type[5] = 0; + entry = applesmc_get_entry_by_key(key); + if (IS_ERR(entry)) + return PTR_ERR(entry); + + return applesmc_read_entry(entry, buffer, len); +} + +static int applesmc_write_key(const char *key, const u8 *buffer, u8 len) +{ + const struct applesmc_entry *entry; + + entry = applesmc_get_entry_by_key(key); + if (IS_ERR(entry)) + return PTR_ERR(entry); + return applesmc_write_entry(entry, buffer, len); +} + +static int applesmc_has_key(const char *key, bool *value) +{ + const struct applesmc_entry *entry; + + entry = applesmc_get_entry_by_key(key); + if (IS_ERR(entry) && PTR_ERR(entry) != -EINVAL) + return PTR_ERR(entry); + + *value = !IS_ERR(entry); return 0; } /* - * applesmc_read_motion_sensor - Read motion sensor (X, Y or Z). Callers must - * hold applesmc_lock. + * applesmc_read_s16 - Read 16-bit signed big endian register */ -static int applesmc_read_motion_sensor(int index, s16* value) +static int applesmc_read_s16(const char *key, 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; - } + ret = applesmc_read_key(key, buffer, 2); + if (ret) + return ret; *value = ((s16)buffer[0] << 8) | buffer[1]; - - return ret; + return 0; } /* - * applesmc_device_init - initialize the accelerometer. Returns zero on success - * and negative error code on failure. Can sleep. + * applesmc_device_init - initialize the accelerometer. Can sleep. */ -static int applesmc_device_init(void) +static void applesmc_device_init(void) { - int total, ret = -ENXIO; + int total; u8 buffer[2]; - if (!applesmc_accelerometer) - return 0; - - mutex_lock(&applesmc_lock); + if (!smcreg.has_accelerometer) + return; 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] != 0x00 || buffer[1] != 0x00)) + return; 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"); + pr_warn("failed to init the device\n"); +} -out: - mutex_unlock(&applesmc_lock); - return ret; +static int applesmc_init_index(struct applesmc_registers *s) +{ + const struct applesmc_entry *entry; + unsigned int i; + + if (s->index) + return 0; + + s->index = kcalloc(s->temp_count, sizeof(s->index[0]), GFP_KERNEL); + if (!s->index) + return -ENOMEM; + + for (i = s->temp_begin; i < s->temp_end; i++) { + entry = applesmc_get_entry_by_index(i); + if (IS_ERR(entry)) + continue; + if (strcmp(entry->type, TEMP_SENSOR_TYPE)) + continue; + s->index[s->index_count++] = entry->key; + } + + return 0; } /* - * applesmc_get_fan_count - get the number of fans. Callers must NOT hold - * applesmc_lock. + * applesmc_init_smcreg_try - Try to initialize register cache. Idempotent. */ -static int applesmc_get_fan_count(void) +static int applesmc_init_smcreg_try(void) { + struct applesmc_registers *s = &smcreg; + bool left_light_sensor, right_light_sensor; + unsigned int count; + u8 tmp[1]; int ret; - u8 buffer[1]; - mutex_lock(&applesmc_lock); + if (s->init_complete) + return 0; + + ret = read_register_count(&count); + if (ret) + return ret; + + if (s->cache && s->key_count != count) { + pr_warn("key count changed from %d to %d\n", + s->key_count, count); + kfree(s->cache); + s->cache = NULL; + } + s->key_count = count; - ret = applesmc_read_key(FANS_COUNT, buffer, 1); + if (!s->cache) + s->cache = kcalloc(s->key_count, sizeof(*s->cache), GFP_KERNEL); + if (!s->cache) + return -ENOMEM; - mutex_unlock(&applesmc_lock); + ret = applesmc_read_key(FANS_COUNT, tmp, 1); if (ret) return ret; - else - return buffer[0]; + s->fan_count = tmp[0]; + + ret = applesmc_get_lower_bound(&s->temp_begin, "T"); + if (ret) + return ret; + ret = applesmc_get_lower_bound(&s->temp_end, "U"); + if (ret) + return ret; + s->temp_count = s->temp_end - s->temp_begin; + + ret = applesmc_init_index(s); + if (ret) + return ret; + + ret = applesmc_has_key(LIGHT_SENSOR_LEFT_KEY, &left_light_sensor); + if (ret) + return ret; + ret = applesmc_has_key(LIGHT_SENSOR_RIGHT_KEY, &right_light_sensor); + if (ret) + return ret; + ret = applesmc_has_key(MOTION_SENSOR_KEY, &s->has_accelerometer); + if (ret) + return ret; + ret = applesmc_has_key(BACKLIGHT_KEY, &s->has_key_backlight); + if (ret) + return ret; + + s->num_light_sensors = left_light_sensor + right_light_sensor; + s->init_complete = true; + + pr_info("key=%d fan=%d temp=%d index=%d acc=%d lux=%d kbd=%d\n", + s->key_count, s->fan_count, s->temp_count, s->index_count, + s->has_accelerometer, + s->num_light_sensors, + s->has_key_backlight); + + return 0; +} + +static void applesmc_destroy_smcreg(void) +{ + kfree(smcreg.index); + smcreg.index = NULL; + kfree(smcreg.cache); + smcreg.cache = NULL; + smcreg.init_complete = false; +} + +/* + * applesmc_init_smcreg - Initialize register cache. + * + * Retries until initialization is successful, or the operation times out. + * + */ +static int applesmc_init_smcreg(void) +{ + int ms, ret; + + for (ms = 0; ms < INIT_TIMEOUT_MSECS; ms += INIT_WAIT_MSECS) { + ret = applesmc_init_smcreg_try(); + if (!ret) { + if (ms) + pr_info("init_smcreg() took %d ms\n", ms); + return 0; + } + msleep(INIT_WAIT_MSECS); + } + + applesmc_destroy_smcreg(); + + return ret; } /* Device model stuff */ @@ -491,30 +643,27 @@ static int applesmc_probe(struct platform_device *dev) { int ret; - ret = applesmc_device_init(); + ret = applesmc_init_smcreg(); if (ret) return ret; - printk(KERN_INFO "applesmc: device successfully initialized.\n"); + applesmc_device_init(); + return 0; } /* Synchronize device with memorized backlight state */ static int applesmc_pm_resume(struct device *dev) { - mutex_lock(&applesmc_lock); - if (applesmc_light) + if (smcreg.has_key_backlight) applesmc_write_key(BACKLIGHT_KEY, backlight_state, 2); - mutex_unlock(&applesmc_lock); return 0; } /* Reinitialize device on resume from hibernation */ static int applesmc_pm_restore(struct device *dev) { - int ret = applesmc_device_init(); - if (ret) - return ret; + applesmc_device_init(); return applesmc_pm_resume(dev); } @@ -538,8 +687,8 @@ static struct platform_driver applesmc_driver = { */ static void applesmc_calibrate(void) { - applesmc_read_motion_sensor(SENSOR_X, &rest_x); - applesmc_read_motion_sensor(SENSOR_Y, &rest_y); + applesmc_read_s16(MOTION_SENSOR_X_KEY, &rest_x); + applesmc_read_s16(MOTION_SENSOR_Y_KEY, &rest_y); rest_x = -rest_x; } @@ -548,20 +697,15 @@ 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; + if (applesmc_read_s16(MOTION_SENSOR_X_KEY, &x)) + return; + if (applesmc_read_s16(MOTION_SENSOR_Y_KEY, &y)) + return; 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 */ @@ -578,20 +722,17 @@ static ssize_t applesmc_position_show(struct device *dev, int ret; s16 x, y, z; - mutex_lock(&applesmc_lock); - - ret = applesmc_read_motion_sensor(SENSOR_X, &x); + ret = applesmc_read_s16(MOTION_SENSOR_X_KEY, &x); if (ret) goto out; - ret = applesmc_read_motion_sensor(SENSOR_Y, &y); + ret = applesmc_read_s16(MOTION_SENSOR_Y_KEY, &y); if (ret) goto out; - ret = applesmc_read_motion_sensor(SENSOR_Z, &z); + ret = applesmc_read_s16(MOTION_SENSOR_Z_KEY, &z); if (ret) goto out; out: - mutex_unlock(&applesmc_lock); if (ret) return ret; else @@ -601,20 +742,20 @@ out: static ssize_t applesmc_light_show(struct device *dev, struct device_attribute *attr, char *sysfsbuf) { + const struct applesmc_entry *entry; static int data_length; int ret; u8 left = 0, right = 0; - u8 buffer[10], query[6]; - - mutex_lock(&applesmc_lock); + u8 buffer[10]; 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); + entry = applesmc_get_entry_by_key(LIGHT_SENSOR_LEFT_KEY); + if (IS_ERR(entry)) + return PTR_ERR(entry); + if (entry->len > 10) + return -ENXIO; + data_length = entry->len; + pr_info("light sensor data length set to %d\n", data_length); } ret = applesmc_read_key(LIGHT_SENSOR_LEFT_KEY, buffer, data_length); @@ -630,36 +771,37 @@ static ssize_t applesmc_light_show(struct device *dev, right = buffer[2]; out: - mutex_unlock(&applesmc_lock); if (ret) return ret; else return snprintf(sysfsbuf, PAGE_SIZE, "(%d,%d)\n", left, right); } +/* Displays sensor key as label */ +static ssize_t applesmc_show_sensor_label(struct device *dev, + struct device_attribute *devattr, char *sysfsbuf) +{ + const char *key = smcreg.index[to_index(devattr)]; + + return snprintf(sysfsbuf, PAGE_SIZE, "%s\n", key); +} + /* Displays degree Celsius * 1000 */ static ssize_t applesmc_show_temperature(struct device *dev, struct device_attribute *devattr, char *sysfsbuf) { + const char *key = smcreg.index[to_index(devattr)]; 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); + s16 value; + int temp; + ret = applesmc_read_s16(key, &value); if (ret) return ret; - else - return snprintf(sysfsbuf, PAGE_SIZE, "%u\n", temp); + + temp = 250 * (value >> 6); + + return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", temp); } static ssize_t applesmc_show_fan_speed(struct device *dev, @@ -669,21 +811,12 @@ static ssize_t applesmc_show_fan_speed(struct device *dev, 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); + sprintf(newkey, fan_speed_fmt[to_option(attr)], to_index(attr)); ret = applesmc_read_key(newkey, buffer, 2); speed = ((buffer[0] << 8 | buffer[1]) >> 2); - mutex_unlock(&applesmc_lock); if (ret) return ret; else @@ -695,30 +828,19 @@ static ssize_t applesmc_store_fan_speed(struct device *dev, const char *sysfsbuf, size_t count) { int ret; - u32 speed; + unsigned long 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 (kstrtoul(sysfsbuf, 10, &speed) < 0 || speed >= 0x4000) + return -EINVAL; /* Bigger than a 14-bit value */ - 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); + sprintf(newkey, fan_speed_fmt[to_option(attr)], to_index(attr)); 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 @@ -726,19 +848,15 @@ static ssize_t applesmc_store_fan_speed(struct device *dev, } static ssize_t applesmc_show_fan_manual(struct device *dev, - struct device_attribute *devattr, char *sysfsbuf) + struct device_attribute *attr, 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; + manual = ((buffer[0] << 8 | buffer[1]) >> to_index(attr)) & 0x01; - mutex_unlock(&applesmc_lock); if (ret) return ret; else @@ -746,18 +864,16 @@ static ssize_t applesmc_show_fan_manual(struct device *dev, } static ssize_t applesmc_store_fan_manual(struct device *dev, - struct device_attribute *devattr, + struct device_attribute *attr, const char *sysfsbuf, size_t count) { int ret; u8 buffer[2]; - u32 input; + unsigned long input; u16 val; - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - - input = simple_strtoul(sysfsbuf, NULL, 10); - mutex_lock(&applesmc_lock); + if (kstrtoul(sysfsbuf, 10, &input) < 0) + return -EINVAL; ret = applesmc_read_key(FANS_MANUAL, buffer, 2); val = (buffer[0] << 8 | buffer[1]); @@ -765,9 +881,9 @@ static ssize_t applesmc_store_fan_manual(struct device *dev, goto out; if (input) - val = val | (0x01 << attr->index); + val = val | (0x01 << to_index(attr)); else - val = val & ~(0x01 << attr->index); + val = val & ~(0x01 << to_index(attr)); buffer[0] = (val >> 8) & 0xFF; buffer[1] = val & 0xFF; @@ -775,7 +891,6 @@ static ssize_t applesmc_store_fan_manual(struct device *dev, ret = applesmc_write_key(FANS_MANUAL, buffer, 2); out: - mutex_unlock(&applesmc_lock); if (ret) return ret; else @@ -788,21 +903,12 @@ static ssize_t applesmc_show_fan_position(struct device *dev, 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); + sprintf(newkey, FAN_ID_FMT, to_index(attr)); ret = applesmc_read_key(newkey, buffer, 16); buffer[16] = 0; - mutex_unlock(&applesmc_lock); if (ret) return ret; else @@ -818,18 +924,14 @@ static ssize_t applesmc_calibrate_show(struct device *dev, 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; } static void applesmc_backlight_set(struct work_struct *work) { - mutex_lock(&applesmc_lock); applesmc_write_key(BACKLIGHT_KEY, backlight_state, 2); - mutex_unlock(&applesmc_lock); } static DECLARE_WORK(backlight_work, &applesmc_backlight_set); @@ -842,7 +944,7 @@ static void applesmc_brightness_set(struct led_classdev *led_cdev, ret = queue_work(applesmc_led_wq, &backlight_work); if (debug && (!ret)) - printk(KERN_DEBUG "applesmc: work was already on the queue.\n"); + dev_dbg(led_cdev->dev, "work was already on the queue.\n"); } static ssize_t applesmc_key_count_show(struct device *dev, @@ -852,13 +954,10 @@ static ssize_t applesmc_key_count_show(struct device *dev, 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 @@ -868,113 +967,53 @@ static ssize_t applesmc_key_count_show(struct device *dev, static ssize_t applesmc_key_at_index_read_show(struct device *dev, struct device_attribute *attr, char *sysfsbuf) { - char key[5]; - char info[6]; + const struct applesmc_entry *entry; 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); - + entry = applesmc_get_entry_by_index(key_at_index); + if (IS_ERR(entry)) + return PTR_ERR(entry); + ret = applesmc_read_entry(entry, sysfsbuf, entry->len); + if (ret) 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; - } + return entry->len; } 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); + const struct applesmc_entry *entry; - if (ret || !key[0]) { - mutex_unlock(&applesmc_lock); - - return -EINVAL; - } + entry = applesmc_get_entry_by_index(key_at_index); + if (IS_ERR(entry)) + return PTR_ERR(entry); - 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; + return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", entry->len); } 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; + const struct applesmc_entry *entry; - mutex_lock(&applesmc_lock); + entry = applesmc_get_entry_by_index(key_at_index); + if (IS_ERR(entry)) + return PTR_ERR(entry); - 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; + return snprintf(sysfsbuf, PAGE_SIZE, "%s\n", entry->type); } 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); + const struct applesmc_entry *entry; - ret = applesmc_get_key_at_index(key_at_index, key); + entry = applesmc_get_entry_by_index(key_at_index); + if (IS_ERR(entry)) + return PTR_ERR(entry); - mutex_unlock(&applesmc_lock); - - if (!ret && key[0]) - return snprintf(sysfsbuf, PAGE_SIZE, "%s\n", key); - else - return -EINVAL; + return snprintf(sysfsbuf, PAGE_SIZE, "%s\n", entry->key); } static ssize_t applesmc_key_at_index_show(struct device *dev, @@ -986,12 +1025,13 @@ static ssize_t applesmc_key_at_index_show(struct device *dev, 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); + unsigned long newkey; - key_at_index = simple_strtoul(sysfsbuf, NULL, 10); - - mutex_unlock(&applesmc_lock); + if (kstrtoul(sysfsbuf, 10, &newkey) < 0 + || newkey >= smcreg.key_count) + return -EINVAL; + key_at_index = newkey; return count; } @@ -1001,259 +1041,102 @@ static struct led_classdev applesmc_backlight = { .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 struct applesmc_node_group info_group[] = { + { "name", applesmc_name_show }, + { "key_count", applesmc_key_count_show }, + { "key_at_index", applesmc_key_at_index_show, applesmc_key_at_index_store }, + { "key_at_index_name", applesmc_key_at_index_name_show }, + { "key_at_index_type", applesmc_key_at_index_type_show }, + { "key_at_index_data_length", applesmc_key_at_index_data_length_show }, + { "key_at_index_data", applesmc_key_at_index_read_show }, + { } }; -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 struct applesmc_node_group accelerometer_group[] = { + { "position", applesmc_position_show }, + { "calibrate", applesmc_calibrate_show, applesmc_calibrate_store }, + { } }; -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 \ +static struct applesmc_node_group light_sensor_group[] = { + { "light", applesmc_light_show }, + { } }; -/* - * 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 }, +static struct applesmc_node_group fan_group[] = { + { "fan%d_label", applesmc_show_fan_position }, + { "fan%d_input", applesmc_show_fan_speed, NULL, 0 }, + { "fan%d_min", applesmc_show_fan_speed, applesmc_store_fan_speed, 1 }, + { "fan%d_max", applesmc_show_fan_speed, NULL, 2 }, + { "fan%d_safe", applesmc_show_fan_speed, NULL, 3 }, + { "fan%d_output", applesmc_show_fan_speed, applesmc_store_fan_speed, 4 }, + { "fan%d_manual", applesmc_show_fan_manual, applesmc_store_fan_manual }, + { } }; -/* - * 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 SENSOR_DEVICE_ATTR(temp36_input, S_IRUGO, - applesmc_show_temperature, NULL, 35); -static SENSOR_DEVICE_ATTR(temp37_input, S_IRUGO, - applesmc_show_temperature, NULL, 36); -static SENSOR_DEVICE_ATTR(temp38_input, S_IRUGO, - applesmc_show_temperature, NULL, 37); -static SENSOR_DEVICE_ATTR(temp39_input, S_IRUGO, - applesmc_show_temperature, NULL, 38); -static SENSOR_DEVICE_ATTR(temp40_input, S_IRUGO, - applesmc_show_temperature, NULL, 39); - -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, - &sensor_dev_attr_temp36_input.dev_attr.attr, - &sensor_dev_attr_temp37_input.dev_attr.attr, - &sensor_dev_attr_temp38_input.dev_attr.attr, - &sensor_dev_attr_temp39_input.dev_attr.attr, - &sensor_dev_attr_temp40_input.dev_attr.attr, - NULL +static struct applesmc_node_group temp_group[] = { + { "temp%d_label", applesmc_show_sensor_label }, + { "temp%d_input", applesmc_show_temperature }, + { } }; -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. + * applesmc_destroy_nodes - remove files and free associated memory */ -static int applesmc_dmi_match(const struct dmi_system_id *id) +static void applesmc_destroy_nodes(struct applesmc_node_group *groups) { - 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; + struct applesmc_node_group *grp; + struct applesmc_dev_attr *node; + + for (grp = groups; grp->nodes; grp++) { + for (node = grp->nodes; node->sda.dev_attr.attr.name; node++) + sysfs_remove_file(&pdev->dev.kobj, + &node->sda.dev_attr.attr); + kfree(grp->nodes); + grp->nodes = NULL; + } +} + +/* + * applesmc_create_nodes - create a two-dimensional group of sysfs files + */ +static int applesmc_create_nodes(struct applesmc_node_group *groups, int num) +{ + struct applesmc_node_group *grp; + struct applesmc_dev_attr *node; + struct attribute *attr; + int ret, i; + + for (grp = groups; grp->format; grp++) { + grp->nodes = kcalloc(num + 1, sizeof(*node), GFP_KERNEL); + if (!grp->nodes) { + ret = -ENOMEM; + goto out; + } + for (i = 0; i < num; i++) { + node = &grp->nodes[i]; + sprintf(node->name, grp->format, i + 1); + node->sda.index = (grp->option << 16) | (i & 0xffff); + node->sda.dev_attr.show = grp->show; + node->sda.dev_attr.store = grp->store; + attr = &node->sda.dev_attr.attr; + sysfs_attr_init(attr); + attr->name = node->name; + attr->mode = S_IRUGO | (grp->store ? S_IWUSR : 0); + ret = sysfs_create_file(&pdev->dev.kobj, attr); + if (ret) { + attr->name = NULL; + goto out; + } + } + } + + return 0; +out: + applesmc_destroy_nodes(groups); + return ret; } /* Create accelerometer ressources */ @@ -1262,8 +1145,10 @@ static int applesmc_create_accelerometer(void) struct input_dev *idev; int ret; - ret = sysfs_create_group(&pdev->dev.kobj, - &accelerometer_attributes_group); + if (!smcreg.has_accelerometer) + return 0; + + ret = applesmc_create_nodes(accelerometer_group, 1); if (ret) goto out; @@ -1300,148 +1185,98 @@ out_idev: input_free_polled_device(applesmc_idev); out_sysfs: - sysfs_remove_group(&pdev->dev.kobj, &accelerometer_attributes_group); + applesmc_destroy_nodes(accelerometer_group); out: - printk(KERN_WARNING "applesmc: driver init failed (ret=%d)!\n", ret); + pr_warn("driver init failed (ret=%d)!\n", ret); return ret; } /* Release all ressources used by the accelerometer */ static void applesmc_release_accelerometer(void) { + if (!smcreg.has_accelerometer) + return; input_unregister_polled_device(applesmc_idev); input_free_polled_device(applesmc_idev); - sysfs_remove_group(&pdev->dev.kobj, &accelerometer_attributes_group); + applesmc_destroy_nodes(accelerometer_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, MacBook4: 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 }, -/* MacBook Pro 5: accelerometer, backlight and temperature set 12 */ - { .accelerometer = 1, .light = 1, .temperature_set = 12 }, -/* iMac 8: light sensor only, temperature set 13 */ - { .accelerometer = 0, .light = 0, .temperature_set = 13 }, -/* iMac 6: light sensor only, temperature set 14 */ - { .accelerometer = 0, .light = 0, .temperature_set = 14 }, -/* MacBook Air 2,1: accelerometer, backlight and temperature set 15 */ - { .accelerometer = 1, .light = 1, .temperature_set = 15 }, -/* MacPro3,1: temperature set 16 */ - { .accelerometer = 0, .light = 0, .temperature_set = 16 }, -}; +static int applesmc_create_light_sensor(void) +{ + if (!smcreg.num_light_sensors) + return 0; + return applesmc_create_nodes(light_sensor_group, 1); +} -/* Note that DMI_MATCH(...,"MacBook") will match "MacBookPro1,1". - * So we need to put "Apple MacBook Pro" before "Apple MacBook". */ +static void applesmc_release_light_sensor(void) +{ + if (!smcreg.num_light_sensors) + return; + applesmc_destroy_nodes(light_sensor_group); +} + +static int applesmc_create_key_backlight(void) +{ + if (!smcreg.has_key_backlight) + return 0; + applesmc_led_wq = create_singlethread_workqueue("applesmc-led"); + if (!applesmc_led_wq) + return -ENOMEM; + return led_classdev_register(&pdev->dev, &applesmc_backlight); +} + +static void applesmc_release_key_backlight(void) +{ + if (!smcreg.has_key_backlight) + return; + led_classdev_unregister(&applesmc_backlight); + destroy_workqueue(applesmc_led_wq); +} + +static int applesmc_dmi_match(const struct dmi_system_id *id) +{ + return 1; +} + +/* + * 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 2", { - DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir2") }, - &applesmc_dmi_data[15]}, { 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 5", { - DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro5") }, - &applesmc_dmi_data[12]}, - { 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 4", { - DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBook4") }, - &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]}, + DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro") }, + }, { applesmc_dmi_match, "Apple MacBook", { - DMI_MATCH(DMI_BOARD_VENDOR,"Apple"), - DMI_MATCH(DMI_PRODUCT_NAME,"MacBook") }, - &applesmc_dmi_data[2]}, + DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBook") }, + }, { 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 MacPro3", { DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), - DMI_MATCH(DMI_PRODUCT_NAME, "MacPro3") }, - &applesmc_dmi_data[16]}, + DMI_MATCH(DMI_PRODUCT_NAME, "Macmini") }, + }, { applesmc_dmi_match, "Apple MacPro", { DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), DMI_MATCH(DMI_PRODUCT_NAME, "MacPro") }, - &applesmc_dmi_data[4]}, - { applesmc_dmi_match, "Apple iMac 8", { - DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), - DMI_MATCH(DMI_PRODUCT_NAME, "iMac8") }, - &applesmc_dmi_data[13]}, - { applesmc_dmi_match, "Apple iMac 6", { - DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), - DMI_MATCH(DMI_PRODUCT_NAME, "iMac6") }, - &applesmc_dmi_data[14]}, - { 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]}, + DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), + DMI_MATCH(DMI_PRODUCT_NAME, "iMac") }, + }, { .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"); + pr_warn("supported laptop not found!\n"); ret = -ENODEV; goto out; } @@ -1463,93 +1298,34 @@ static int __init applesmc_init(void) goto out_driver; } - ret = sysfs_create_file(&pdev->dev.kobj, &dev_attr_name.attr); + /* create register cache */ + ret = applesmc_init_smcreg(); if (ret) goto out_device; - /* Create key enumeration sysfs files */ - ret = sysfs_create_group(&pdev->dev.kobj, &key_enumeration_group); + ret = applesmc_create_nodes(info_group, 1); 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: - ; - } - } + goto out_smcreg; - 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; - } + ret = applesmc_create_nodes(fan_group, smcreg.fan_count); + if (ret) + goto out_info; - if (applesmc_accelerometer) { - ret = applesmc_create_accelerometer(); - if (ret) - goto out_temperature; - } + ret = applesmc_create_nodes(temp_group, smcreg.index_count); + if (ret) + goto out_fans; - if (applesmc_light) { - /* Add light sensor file */ - ret = sysfs_create_file(&pdev->dev.kobj, &dev_attr_light.attr); - if (ret) - goto out_accelerometer; + ret = applesmc_create_accelerometer(); + if (ret) + goto out_temperature; - /* Create the workqueue */ - applesmc_led_wq = create_singlethread_workqueue("applesmc-led"); - if (!applesmc_led_wq) { - ret = -ENOMEM; - goto out_light_sysfs; - } + ret = applesmc_create_light_sensor(); + if (ret) + goto out_accelerometer; - /* register as a led device */ - ret = led_classdev_register(&pdev->dev, &applesmc_backlight); - if (ret < 0) - goto out_light_wq; - } + ret = applesmc_create_key_backlight(); + if (ret) + goto out_light_sysfs; hwmon_dev = hwmon_device_register(&pdev->dev); if (IS_ERR(hwmon_dev)) { @@ -1557,31 +1333,22 @@ static int __init applesmc_init(void) 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); + applesmc_release_key_backlight(); out_light_sysfs: - if (applesmc_light) - sysfs_remove_file(&pdev->dev.kobj, &dev_attr_light.attr); + applesmc_release_light_sensor(); out_accelerometer: - if (applesmc_accelerometer) - applesmc_release_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); + applesmc_destroy_nodes(temp_group); +out_fans: + applesmc_destroy_nodes(fan_group); +out_info: + applesmc_destroy_nodes(info_group); +out_smcreg: + applesmc_destroy_smcreg(); out_device: platform_device_unregister(pdev); out_driver: @@ -1589,30 +1356,23 @@ out_driver: out_region: release_region(APPLESMC_DATA_PORT, APPLESMC_NR_PORTS); out: - printk(KERN_WARNING "applesmc: driver init failed (ret=%d)!\n", ret); + pr_warn("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); + applesmc_release_key_backlight(); + applesmc_release_light_sensor(); + applesmc_release_accelerometer(); + applesmc_destroy_nodes(temp_group); + applesmc_destroy_nodes(fan_group); + applesmc_destroy_nodes(info_group); + applesmc_destroy_smcreg(); 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); |