4 #include <linux/version.h>
6 #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 32)
7 #error This driver is for kernel versions 2.6.32 and later
10 #if !defined (CONFIG_HWMON_VID) && !defined(CONFIG_HWMON_VID_MODULE)
11 int vid_from_reg(int val, u8 vrm)
16 u8 vid_which_vrm(void)
22 #if LINUX_VERSION_CODE < KERNEL_VERSION(3, 12, 0)
23 #if !(defined RHEL_MAJOR && RHEL_MAJOR == 6 && RHEL_MINOR >= 7)
24 static int sysfs_create_groups(struct kobject *kobj,
25 const struct attribute_group **groups)
33 for (i = 0; groups[i]; i++) {
34 error = sysfs_create_group(kobj, groups[i]);
37 sysfs_remove_group(kobj, groups[i]);
45 static void sysfs_remove_groups(struct kobject *kobj,
46 const struct attribute_group **groups)
52 for (i = 0; groups[i]; i++)
53 sysfs_remove_group(kobj, groups[i]);
56 #if !(defined RHEL_MAJOR && RHEL_MAJOR == 6 && RHEL_MINOR >= 7)
57 static inline int __must_check PTR_ERR_OR_ZERO(__force const void *ptr)
69 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 21)
70 #if !(defined RHEL_MAJOR && RHEL_MAJOR == 5 && RHEL_MINOR >= 6)
71 /* Simplified version for compatibility */
72 struct i2c_board_info {
73 char type[I2C_NAME_SIZE];
80 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 25)
81 /* Some older kernels have a different, useless struct i2c_device_id */
82 #define i2c_device_id i2c_device_id_compat
83 struct i2c_device_id {
84 char name[I2C_NAME_SIZE];
85 kernel_ulong_t driver_data /* Data private to the driver */
86 __attribute__((aligned(sizeof(kernel_ulong_t))));
90 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 32)
91 static unsigned short empty_i2c[] = { I2C_CLIENT_END };
92 static struct i2c_client_address_data addr_data = {
93 .normal_i2c = normal_i2c,
99 #if LINUX_VERSION_CODE < KERNEL_VERSION(3, 2, 0)
101 i2c_smbus_read_word_swapped(const struct i2c_client *client, u8 command)
103 s32 value = i2c_smbus_read_word_data(client, command);
105 return (value < 0) ? value : swab16(value);
109 i2c_smbus_write_word_swapped(const struct i2c_client *client,
110 u8 command, u16 value)
112 return i2c_smbus_write_word_data(client, command, swab16(value));
116 /* Red Hat EL5 includes backports of these functions, so we can't redefine
118 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 24)
119 #if !(defined RHEL_MAJOR && RHEL_MAJOR == 5 && RHEL_MINOR >= 5)
120 static inline int strict_strtoul(const char *cp, unsigned int base,
123 *res = simple_strtoul(cp, NULL, base);
127 static inline int strict_strtol(const char *cp, unsigned int base, long *res)
129 *res = simple_strtol(cp, NULL, base);
135 #endif /* __NEED_I2C__ */
137 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 28)
139 * Divide positive or negative dividend by positive divisor and round
140 * to closest integer. Result is undefined for negative divisors and
141 * for negative dividends if the divisor variable type is unsigned.
143 #define DIV_ROUND_CLOSEST(x, divisor)( \
146 typeof(divisor) __d = divisor; \
147 (((typeof(x))-1) > 0 || \
148 ((typeof(divisor))-1) > 0 || (__x) > 0) ? \
149 (((__x) + ((__d) / 2)) / (__d)) : \
150 (((__x) - ((__d) / 2)) / (__d)); \
155 #ifndef module_driver
157 * module_driver() - Helper macro for drivers that don't do anything
158 * special in module init/exit. This eliminates a lot of boilerplate.
159 * Each module may only use this macro once, and calling it replaces
160 * module_init() and module_exit().
162 * @__driver: driver name
163 * @__register: register function for this driver type
164 * @__unregister: unregister function for this driver type
165 * @...: Additional arguments to be passed to __register and __unregister.
167 * Use this macro to construct bus specific macros for registering
168 * drivers, and do not use it on its own.
170 #define module_driver(__driver, __register, __unregister, ...) \
171 static int __init __driver##_init(void) \
173 return __register(&(__driver) , ##__VA_ARGS__); \
175 module_init(__driver##_init); \
176 static void __exit __driver##_exit(void) \
178 __unregister(&(__driver) , ##__VA_ARGS__); \
180 module_exit(__driver##_exit);
185 #ifndef module_i2c_driver
187 * module_i2c_driver() - Helper macro for registering a I2C driver
188 * @__i2c_driver: i2c_driver struct
190 * Helper macro for I2C drivers which do not do anything special in module
191 * init/exit. This eliminates a lot of boilerplate. Each module may only
192 * use this macro once, and calling it replaces module_init() and module_exit()
194 #define module_i2c_driver(__i2c_driver) \
195 module_driver(__i2c_driver, i2c_add_driver, \
199 #endif /* __NEED_I2C__ */
202 #define clamp_val SENSORS_LIMIT
205 #if LINUX_VERSION_CODE < KERNEL_VERSION(3, 12, 0)
207 #define kstrtol strict_strtol
210 #define kstrtoul strict_strtoul
214 #ifndef request_muxed_region
215 #define request_muxed_region(a, b, c) (true)
217 #ifndef release_region
218 #define release_region(a, b)
222 /* pr_warn macro not introduced until 2.6.35 */
223 #define pr_warn pr_warning
225 #ifndef pr_warn_ratelimited
226 #define pr_warn_ratelimited pr_warning_ratelimited
229 #endif /* __COMPAT_H */