373 lines
10 KiB
C
373 lines
10 KiB
C
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/*
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* fan_device_driver.c
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*
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* This module realize /sys/s3ip/fan attributes read and write functions
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*
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* History
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* [Version] [Date] [Description]
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* * v1.0 2021-08-31 S3IP sysfs
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*/
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#include <linux/slab.h>
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#include "device_driver_common.h"
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#include "fan_sysfs.h"
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#define FAN_INFO(fmt, args...) LOG_INFO("fan: ", fmt, ##args)
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#define FAN_ERR(fmt, args...) LOG_ERR("fan: ", fmt, ##args)
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#define FAN_DBG(fmt, args...) LOG_DBG("fan: ", fmt, ##args)
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static int g_loglevel = 0;
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/********************************************fan**********************************************/
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static int demo_get_fan_number(void)
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{
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/* add vendor codes here */
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return 1;
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}
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static int demo_get_fan_motor_number(unsigned int fan_index)
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{
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/* add vendor codes here */
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return 1;
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}
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/*
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* demo_get_fan_model_name - Used to get fan model name,
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* @fan_index: start with 1
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* @buf: Data receiving buffer
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* @count: length of buf
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*
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* This function returns the length of the filled buffer,
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* if not support this attributes filled "NA" to buf,
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* otherwise it returns a negative value on failed.
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*/
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static ssize_t demo_get_fan_model_name(unsigned int fan_index, char *buf, size_t count)
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{
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/* add vendor codes here */
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return -ENOSYS;
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}
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/*
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* demo_get_fan_serial_number - Used to get fan serial number,
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* @fan_index: start with 1
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* @buf: Data receiving buffer
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* @count: length of buf
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*
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* This function returns the length of the filled buffer,
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* if not support this attributes filled "NA" to buf,
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* otherwise it returns a negative value on failed.
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*/
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static ssize_t demo_get_fan_serial_number(unsigned int fan_index, char *buf, size_t count)
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{
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/* add vendor codes here */
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return -ENOSYS;
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}
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/*
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* demo_get_fan_part_number - Used to get fan part number,
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* @fan_index: start with 1
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* @buf: Data receiving buffer
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* @count: length of buf
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*
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* This function returns the length of the filled buffer,
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* if not support this attributes filled "NA" to buf,
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* otherwise it returns a negative value on failed.
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*/
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static ssize_t demo_get_fan_part_number(unsigned int fan_index, char *buf, size_t count)
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{
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/* add vendor codes here */
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return -ENOSYS;
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}
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/*
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* demo_get_fan_hardware_version - Used to get fan hardware version,
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* @fan_index: start with 1
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* @buf: Data receiving buffer
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* @count: length of buf
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*
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* This function returns the length of the filled buffer,
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* if not support this attributes filled "NA" to buf,
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* otherwise it returns a negative value on failed.
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*/
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static ssize_t demo_get_fan_hardware_version(unsigned int fan_index, char *buf, size_t count)
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{
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/* add vendor codes here */
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return -ENOSYS;
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}
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/*
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* demo_get_fan_status - Used to get fan status,
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* filled the value to buf, fan status define as below:
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* 0: ABSENT
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* 1: OK
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* 2: NOT OK
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*
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* @fan_index: start with 1
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* @buf: Data receiving buffer
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* @count: length of buf
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*
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* This function returns the length of the filled buffer,
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* if not support this attributes filled "NA" to buf,
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* otherwise it returns a negative value on failed.
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*/
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static ssize_t demo_get_fan_status(unsigned int fan_index, char *buf, size_t count)
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{
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/* add vendor codes here */
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return -ENOSYS;
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}
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/*
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* demo_get_fan_led_status - Used to get fan led status
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* filled the value to buf, led status value define as below:
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* 0: dark
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* 1: green
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* 2: yellow
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* 3: red
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* 4：blue
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* 5: green light flashing
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* 6: yellow light flashing
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* 7: red light flashing
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* 8：blue light flashing
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*
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* @fan_index: start with 1
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* @buf: Data receiving buffer
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* @count: length of buf
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*
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* This function returns the length of the filled buffer,
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* if not support this attributes filled "NA" to buf,
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* otherwise it returns a negative value on failed.
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*/
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static ssize_t demo_get_fan_led_status(unsigned int fan_index, char *buf, size_t count)
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{
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/* add vendor codes here */
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return -ENOSYS;
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}
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/*
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* demo_set_fan_led_status - Used to set fan led status
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* @fan_index: start with 1
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* @status: led status, led status value define as below:
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* 0: dark
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* 1: green
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* 2: yellow
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* 3: red
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* 4：blue
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* 5: green light flashing
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* 6: yellow light flashing
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* 7: red light flashing
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* 8：blue light flashing
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*
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* This function returns 0 on success,
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* otherwise it returns a negative value on failed.
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*/
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static int demo_set_fan_led_status(unsigned int fan_index, int status)
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{
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/* add vendor codes here */
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return -ENOSYS;
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}
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/*
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* demo_get_fan_direction - Used to get fan air flow direction,
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* filled the value to buf, air flow direction define as below:
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* 0: F2B
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* 1: B2F
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*
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* @fan_index: start with 1
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* @buf: Data receiving buffer
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* @count: length of buf
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*
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* This function returns the length of the filled buffer,
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* if not support this attributes filled "NA" to buf,
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* otherwise it returns a negative value on failed.
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*/
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static ssize_t demo_get_fan_direction(unsigned int fan_index, char *buf, size_t count)
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{
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/* add vendor codes here */
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return -ENOSYS;
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}
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/*
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* demo_get_fan_motor_speed - Used to get fan motor speed
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* filled the value to buf
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* @fan_index: start with 1
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* @motor_index: start with 1
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* @buf: Data receiving buffer
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* @count: length of buf
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*
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* This function returns the length of the filled buffer,
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* if not support this attributes filled "NA" to buf,
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* otherwise it returns a negative value on failed.
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*/
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static ssize_t demo_get_fan_motor_speed(unsigned int fan_index, unsigned int motor_index,
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char *buf, size_t count)
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{
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/* add vendor codes here */
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return -ENOSYS;
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}
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/*
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* demo_get_fan_motor_speed_tolerance - Used to get fan motor speed tolerance
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* filled the value to buf
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* @fan_index: start with 1
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* @motor_index: start with 1
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* @buf: Data receiving buffer
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* @count: length of buf
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*
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* This function returns the length of the filled buffer,
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* if not support this attributes filled "NA" to buf,
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* otherwise it returns a negative value on failed.
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*/
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static ssize_t demo_get_fan_motor_speed_tolerance(unsigned int fan_index, unsigned int motor_index,
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char *buf, size_t count)
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{
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/* add vendor codes here */
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return -ENOSYS;
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}
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/*
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* demo_get_fan_motor_speed_target - Used to get fan motor speed target
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* filled the value to buf
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* @fan_index: start with 1
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* @motor_index: start with 1
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* @buf: Data receiving buffer
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* @count: length of buf
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*
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* This function returns the length of the filled buffer,
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* if not support this attributes filled "NA" to buf,
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* otherwise it returns a negative value on failed.
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*/
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static ssize_t demo_get_fan_motor_speed_target(unsigned int fan_index, unsigned int motor_index,
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char *buf, size_t count)
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{
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/* add vendor codes here */
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return -ENOSYS;
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}
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/*
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* demo_get_fan_motor_speed_max - Used to get the maximum threshold of fan motor
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* filled the value to buf
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* @fan_index: start with 1
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* @motor_index: start with 1
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* @buf: Data receiving buffer
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* @count: length of buf
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*
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* This function returns the length of the filled buffer,
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* if not support this attributes filled "NA" to buf,
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* otherwise it returns a negative value on failed.
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*/
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static ssize_t demo_get_fan_motor_speed_max(unsigned int fan_index, unsigned int motor_index,
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char *buf, size_t count)
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{
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/* add vendor codes here */
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return -ENOSYS;
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}
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/*
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* demo_get_fan_motor_speed_min - Used to get the minimum threshold of fan motor
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* filled the value to buf
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* @fan_index: start with 1
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* @motor_index: start with 1
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* @buf: Data receiving buffer
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* @count: length of buf
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*
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* This function returns the length of the filled buffer,
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* if not support this attributes filled "NA" to buf,
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* otherwise it returns a negative value on failed.
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*/
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static ssize_t demo_get_fan_motor_speed_min(unsigned int fan_index, unsigned int motor_index,
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char *buf, size_t count)
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{
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/* add vendor codes here */
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return -ENOSYS;
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}
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/*
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* demo_get_fan_motor_ratio - Used to get the ratio of fan motor
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* filled the value to buf
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* @fan_index: start with 1
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* @motor_index: start with 1
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* @buf: Data receiving buffer
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* @count: length of buf
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*
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* This function returns the length of the filled buffer,
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* if not support this attributes filled "NA" to buf,
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* otherwise it returns a negative value on failed.
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*/
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static ssize_t demo_get_fan_ratio(unsigned int fan_index, char *buf, size_t count)
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{
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/* add vendor codes here */
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return -ENOSYS;
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}
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/*
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* demo_set_fan_motor_ratio - Used to set the ratio of fan motor
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* @fan_index: start with 1
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* @motor_index: start with 1
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* @ratio: motor speed ratio, from 0 to 100
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*
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* This function returns 0 on success,
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* otherwise it returns a negative value on failed.
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*/
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static int demo_set_fan_ratio(unsigned int fan_index, int ratio)
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{
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/* add vendor codes here */
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return -ENOSYS;
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}
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/****************************************end of fan*******************************************/
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static struct s3ip_sysfs_fan_drivers_s drivers = {
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/*
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* set ODM fan drivers to /sys/s3ip/fan,
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* if not support the function, set corresponding hook to NULL.
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*/
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.get_fan_number = demo_get_fan_number,
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.get_fan_motor_number = demo_get_fan_motor_number,
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.get_fan_model_name = demo_get_fan_model_name,
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.get_fan_serial_number = demo_get_fan_serial_number,
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.get_fan_part_number = demo_get_fan_part_number,
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.get_fan_hardware_version = demo_get_fan_hardware_version,
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.get_fan_status = demo_get_fan_status,
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.get_fan_led_status = demo_get_fan_led_status,
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.set_fan_led_status = demo_set_fan_led_status,
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.get_fan_direction = demo_get_fan_direction,
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.get_fan_motor_speed = demo_get_fan_motor_speed,
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.get_fan_motor_speed_tolerance = demo_get_fan_motor_speed_tolerance,
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.get_fan_motor_speed_target = demo_get_fan_motor_speed_target,
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.get_fan_motor_speed_max = demo_get_fan_motor_speed_max,
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.get_fan_motor_speed_min = demo_get_fan_motor_speed_min,
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.get_fan_ratio = demo_get_fan_ratio,
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.set_fan_ratio = demo_set_fan_ratio,
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};
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static int __init fan_dev_drv_init(void)
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{
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int ret;
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FAN_INFO("fan_init...\n");
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ret = s3ip_sysfs_fan_drivers_register(&drivers);
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if (ret < 0) {
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FAN_ERR("fan drivers register err, ret %d.\n", ret);
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return ret;
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}
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FAN_INFO("fan_init success.\n");
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return 0;
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}
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static void __exit fan_dev_drv_exit(void)
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{
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s3ip_sysfs_fan_drivers_unregister();
|
|||
|
|
FAN_INFO("fan_exit success.\n");
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
module_init(fan_dev_drv_init);
|
|||
|
|
module_exit(fan_dev_drv_exit);
|
|||
|
|
module_param(g_loglevel, int, 0644);
|
|||
|
|
MODULE_PARM_DESC(g_loglevel, "the log level(info=0x1, err=0x2, dbg=0x4, all=0xf).\n");
|
|||
|
|
MODULE_LICENSE("GPL");
|
|||
|
|
MODULE_AUTHOR("sonic S3IP sysfs");
|
|||
|
|
MODULE_DESCRIPTION("fan device driver");
|