diff options
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/thinkpad_acpi.c | 127 | ||||
| -rw-r--r-- | drivers/misc/thinkpad_acpi.h | 2 |
2 files changed, 129 insertions, 0 deletions
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c index a56526500c1..83a8d984e70 100644 --- a/drivers/misc/thinkpad_acpi.c +++ b/drivers/misc/thinkpad_acpi.c @@ -706,6 +706,108 @@ static struct ibm_struct thinkpad_acpi_driver_data = { static int hotkey_orig_status; static int hotkey_orig_mask; +static struct attribute_set *hotkey_dev_attributes = NULL; + +/* sysfs hotkey enable ------------------------------------------------- */ +static ssize_t hotkey_enable_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int res, status, mask; + + res = hotkey_get(&status, &mask); + if (res) + return res; + + return snprintf(buf, PAGE_SIZE, "%d\n", status); +} + +static ssize_t hotkey_enable_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + unsigned long t; + int res, status, mask; + + if (parse_strtoul(buf, 1, &t)) + return -EINVAL; + + res = hotkey_get(&status, &mask); + if (!res) + res = hotkey_set(t, mask); + + return (res) ? res : count; +} + +static struct device_attribute dev_attr_hotkey_enable = + __ATTR(enable, S_IWUSR | S_IRUGO, + hotkey_enable_show, hotkey_enable_store); + +/* sysfs hotkey mask --------------------------------------------------- */ +static ssize_t hotkey_mask_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int res, status, mask; + + res = hotkey_get(&status, &mask); + if (res) + return res; + + return snprintf(buf, PAGE_SIZE, "0x%04x\n", mask); +} + +static ssize_t hotkey_mask_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + unsigned long t; + int res, status, mask; + + if (parse_strtoul(buf, 0xffff, &t)) + return -EINVAL; + + res = hotkey_get(&status, &mask); + if (!res) + hotkey_set(status, t); + + return (res) ? res : count; +} + +static struct device_attribute dev_attr_hotkey_mask = + __ATTR(mask, S_IWUSR | S_IRUGO, + hotkey_mask_show, hotkey_mask_store); + +/* sysfs hotkey bios_enabled ------------------------------------------- */ +static ssize_t hotkey_bios_enabled_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status); +} + +static struct device_attribute dev_attr_hotkey_bios_enabled = + __ATTR(bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); + +/* sysfs hotkey bios_mask ---------------------------------------------- */ +static ssize_t hotkey_bios_mask_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return snprintf(buf, PAGE_SIZE, "0x%04x\n", hotkey_orig_mask); +} + +static struct device_attribute dev_attr_hotkey_bios_mask = + __ATTR(bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); + +/* --------------------------------------------------------------------- */ + +static struct attribute *hotkey_mask_attributes[] = { + &dev_attr_hotkey_mask.attr, + &dev_attr_hotkey_bios_enabled.attr, + &dev_attr_hotkey_bios_mask.attr, +}; + static int __init hotkey_init(struct ibm_init_struct *iibm) { int res; @@ -722,6 +824,15 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) str_supported(tp_features.hotkey)); if (tp_features.hotkey) { + hotkey_dev_attributes = create_attr_set(4, + TPACPI_HOTKEY_SYSFS_GROUP); + if (!hotkey_dev_attributes) + return -ENOMEM; + res = add_to_attr_set(hotkey_dev_attributes, + &dev_attr_hotkey_enable.attr); + if (res) + return res; + /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, A30, R30, R31, T20-22, X20-21, X22-24 */ tp_features.hotkey_mask = @@ -731,6 +842,16 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) str_supported(tp_features.hotkey_mask)); res = hotkey_get(&hotkey_orig_status, &hotkey_orig_mask); + if (!res && tp_features.hotkey_mask) { + res = add_many_to_attr_set(hotkey_dev_attributes, + hotkey_mask_attributes, + ARRAY_SIZE(hotkey_mask_attributes)); + } + if (!res) + res = register_attr_set_with_sysfs( + hotkey_dev_attributes, + &tpacpi_pdev->dev.kobj); + if (res) return res; } @@ -748,6 +869,11 @@ static void hotkey_exit(void) if (res) printk(IBM_ERR "failed to restore hotkey to BIOS defaults\n"); } + + if (hotkey_dev_attributes) { + delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); + hotkey_dev_attributes = NULL; + } } static void hotkey_notify(struct ibm_struct *ibm, u32 event) @@ -798,6 +924,7 @@ static int hotkey_set(int status, int mask) return 0; } +/* procfs -------------------------------------------------------------- */ static int hotkey_read(char *p) { int res, status, mask; diff --git a/drivers/misc/thinkpad_acpi.h b/drivers/misc/thinkpad_acpi.h index a9e70936825..7615adb381c 100644 --- a/drivers/misc/thinkpad_acpi.h +++ b/drivers/misc/thinkpad_acpi.h @@ -414,6 +414,8 @@ static int fan_write_cmd_watchdog(const char *cmd, int *rc); * Hotkey subdriver */ +#define TPACPI_HOTKEY_SYSFS_GROUP "hotkey" + static int hotkey_orig_status; static int hotkey_orig_mask; |