diff options
Diffstat (limited to 'drivers/acpi/fan.c')
| -rw-r--r-- | drivers/acpi/fan.c | 139 |
1 files changed, 1 insertions, 138 deletions
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c index d94d2953c974..60049080c869 100644 --- a/drivers/acpi/fan.c +++ b/drivers/acpi/fan.c | |||
| @@ -27,8 +27,6 @@ | |||
| 27 | #include <linux/module.h> | 27 | #include <linux/module.h> |
| 28 | #include <linux/init.h> | 28 | #include <linux/init.h> |
| 29 | #include <linux/types.h> | 29 | #include <linux/types.h> |
| 30 | #include <linux/proc_fs.h> | ||
| 31 | #include <linux/seq_file.h> | ||
| 32 | #include <asm/uaccess.h> | 30 | #include <asm/uaccess.h> |
| 33 | #include <linux/thermal.h> | 31 | #include <linux/thermal.h> |
| 34 | #include <acpi/acpi_bus.h> | 32 | #include <acpi/acpi_bus.h> |
| @@ -119,122 +117,6 @@ static struct thermal_cooling_device_ops fan_cooling_ops = { | |||
| 119 | }; | 117 | }; |
| 120 | 118 | ||
| 121 | /* -------------------------------------------------------------------------- | 119 | /* -------------------------------------------------------------------------- |
| 122 | FS Interface (/proc) | ||
| 123 | -------------------------------------------------------------------------- */ | ||
| 124 | #ifdef CONFIG_ACPI_PROCFS | ||
| 125 | |||
| 126 | static struct proc_dir_entry *acpi_fan_dir; | ||
| 127 | |||
| 128 | static int acpi_fan_read_state(struct seq_file *seq, void *offset) | ||
| 129 | { | ||
| 130 | struct acpi_device *device = seq->private; | ||
| 131 | int state = 0; | ||
| 132 | |||
| 133 | |||
| 134 | if (device) { | ||
| 135 | if (acpi_bus_get_power(device->handle, &state)) | ||
| 136 | seq_printf(seq, "status: ERROR\n"); | ||
| 137 | else | ||
| 138 | seq_printf(seq, "status: %s\n", | ||
| 139 | !state ? "on" : "off"); | ||
| 140 | } | ||
| 141 | return 0; | ||
| 142 | } | ||
| 143 | |||
| 144 | static int acpi_fan_state_open_fs(struct inode *inode, struct file *file) | ||
| 145 | { | ||
| 146 | return single_open(file, acpi_fan_read_state, PDE(inode)->data); | ||
| 147 | } | ||
| 148 | |||
| 149 | static ssize_t | ||
| 150 | acpi_fan_write_state(struct file *file, const char __user * buffer, | ||
| 151 | size_t count, loff_t * ppos) | ||
| 152 | { | ||
| 153 | int result = 0; | ||
| 154 | struct seq_file *m = file->private_data; | ||
| 155 | struct acpi_device *device = m->private; | ||
| 156 | char state_string[3] = { '\0' }; | ||
| 157 | |||
| 158 | if (count > sizeof(state_string) - 1) | ||
| 159 | return -EINVAL; | ||
| 160 | |||
| 161 | if (copy_from_user(state_string, buffer, count)) | ||
| 162 | return -EFAULT; | ||
| 163 | |||
| 164 | state_string[count] = '\0'; | ||
| 165 | if ((state_string[0] < '0') || (state_string[0] > '3')) | ||
| 166 | return -EINVAL; | ||
| 167 | if (state_string[1] == '\n') | ||
| 168 | state_string[1] = '\0'; | ||
| 169 | if (state_string[1] != '\0') | ||
| 170 | return -EINVAL; | ||
| 171 | |||
| 172 | result = acpi_bus_set_power(device->handle, | ||
| 173 | simple_strtoul(state_string, NULL, 0)); | ||
| 174 | if (result) | ||
| 175 | return result; | ||
| 176 | |||
| 177 | return count; | ||
| 178 | } | ||
| 179 | |||
| 180 | static const struct file_operations acpi_fan_state_ops = { | ||
| 181 | .open = acpi_fan_state_open_fs, | ||
| 182 | .read = seq_read, | ||
| 183 | .write = acpi_fan_write_state, | ||
| 184 | .llseek = seq_lseek, | ||
| 185 | .release = single_release, | ||
| 186 | .owner = THIS_MODULE, | ||
| 187 | }; | ||
| 188 | |||
| 189 | static int acpi_fan_add_fs(struct acpi_device *device) | ||
| 190 | { | ||
| 191 | struct proc_dir_entry *entry = NULL; | ||
| 192 | |||
| 193 | |||
| 194 | if (!device) | ||
| 195 | return -EINVAL; | ||
| 196 | |||
| 197 | if (!acpi_device_dir(device)) { | ||
| 198 | acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), | ||
| 199 | acpi_fan_dir); | ||
| 200 | if (!acpi_device_dir(device)) | ||
| 201 | return -ENODEV; | ||
| 202 | } | ||
| 203 | |||
| 204 | /* 'status' [R/W] */ | ||
| 205 | entry = proc_create_data(ACPI_FAN_FILE_STATE, | ||
| 206 | S_IFREG | S_IRUGO | S_IWUSR, | ||
| 207 | acpi_device_dir(device), | ||
| 208 | &acpi_fan_state_ops, | ||
| 209 | device); | ||
| 210 | if (!entry) | ||
| 211 | return -ENODEV; | ||
| 212 | return 0; | ||
| 213 | } | ||
| 214 | |||
| 215 | static int acpi_fan_remove_fs(struct acpi_device *device) | ||
| 216 | { | ||
| 217 | |||
| 218 | if (acpi_device_dir(device)) { | ||
| 219 | remove_proc_entry(ACPI_FAN_FILE_STATE, acpi_device_dir(device)); | ||
| 220 | remove_proc_entry(acpi_device_bid(device), acpi_fan_dir); | ||
| 221 | acpi_device_dir(device) = NULL; | ||
| 222 | } | ||
| 223 | |||
| 224 | return 0; | ||
| 225 | } | ||
| 226 | #else | ||
| 227 | static int acpi_fan_add_fs(struct acpi_device *device) | ||
| 228 | { | ||
| 229 | return 0; | ||
| 230 | } | ||
| 231 | |||
| 232 | static int acpi_fan_remove_fs(struct acpi_device *device) | ||
| 233 | { | ||
| 234 | return 0; | ||
| 235 | } | ||
| 236 | #endif | ||
| 237 | /* -------------------------------------------------------------------------- | ||
| 238 | Driver Interface | 120 | Driver Interface |
| 239 | -------------------------------------------------------------------------- */ | 121 | -------------------------------------------------------------------------- */ |
| 240 | 122 | ||
| @@ -284,10 +166,6 @@ static int acpi_fan_add(struct acpi_device *device) | |||
| 284 | dev_err(&device->dev, "Failed to create sysfs link " | 166 | dev_err(&device->dev, "Failed to create sysfs link " |
| 285 | "'device'\n"); | 167 | "'device'\n"); |
| 286 | 168 | ||
| 287 | result = acpi_fan_add_fs(device); | ||
| 288 | if (result) | ||
| 289 | goto end; | ||
| 290 | |||
| 291 | printk(KERN_INFO PREFIX "%s [%s] (%s)\n", | 169 | printk(KERN_INFO PREFIX "%s [%s] (%s)\n", |
| 292 | acpi_device_name(device), acpi_device_bid(device), | 170 | acpi_device_name(device), acpi_device_bid(device), |
| 293 | !device->power.state ? "on" : "off"); | 171 | !device->power.state ? "on" : "off"); |
| @@ -303,7 +181,6 @@ static int acpi_fan_remove(struct acpi_device *device, int type) | |||
| 303 | if (!device || !cdev) | 181 | if (!device || !cdev) |
| 304 | return -EINVAL; | 182 | return -EINVAL; |
| 305 | 183 | ||
| 306 | acpi_fan_remove_fs(device); | ||
| 307 | sysfs_remove_link(&device->dev.kobj, "thermal_cooling"); | 184 | sysfs_remove_link(&device->dev.kobj, "thermal_cooling"); |
| 308 | sysfs_remove_link(&cdev->device.kobj, "device"); | 185 | sysfs_remove_link(&cdev->device.kobj, "device"); |
| 309 | thermal_cooling_device_unregister(cdev); | 186 | thermal_cooling_device_unregister(cdev); |
| @@ -347,19 +224,9 @@ static int __init acpi_fan_init(void) | |||
| 347 | { | 224 | { |
| 348 | int result = 0; | 225 | int result = 0; |
| 349 | 226 | ||
| 350 | #ifdef CONFIG_ACPI_PROCFS | ||
| 351 | acpi_fan_dir = proc_mkdir(ACPI_FAN_CLASS, acpi_root_dir); | ||
| 352 | if (!acpi_fan_dir) | ||
| 353 | return -ENODEV; | ||
| 354 | #endif | ||
| 355 | |||
| 356 | result = acpi_bus_register_driver(&acpi_fan_driver); | 227 | result = acpi_bus_register_driver(&acpi_fan_driver); |
| 357 | if (result < 0) { | 228 | if (result < 0) |
| 358 | #ifdef CONFIG_ACPI_PROCFS | ||
| 359 | remove_proc_entry(ACPI_FAN_CLASS, acpi_root_dir); | ||
| 360 | #endif | ||
| 361 | return -ENODEV; | 229 | return -ENODEV; |
| 362 | } | ||
| 363 | 230 | ||
| 364 | return 0; | 231 | return 0; |
| 365 | } | 232 | } |
| @@ -369,10 +236,6 @@ static void __exit acpi_fan_exit(void) | |||
| 369 | 236 | ||
| 370 | acpi_bus_unregister_driver(&acpi_fan_driver); | 237 | acpi_bus_unregister_driver(&acpi_fan_driver); |
| 371 | 238 | ||
| 372 | #ifdef CONFIG_ACPI_PROCFS | ||
| 373 | remove_proc_entry(ACPI_FAN_CLASS, acpi_root_dir); | ||
| 374 | #endif | ||
| 375 | |||
| 376 | return; | 239 | return; |
| 377 | } | 240 | } |
| 378 | 241 | ||
