70 строки
2.0 KiB
C
70 строки
2.0 KiB
C
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/*
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* Copyright (C) ST-Ericsson 2010 - 2013
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* License terms: GNU General Public License v2
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* Author: Martin Persson <martin.persson@stericsson.com>
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* Hongbo Zhang <hongbo.zhang@linaro.com>
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*/
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#ifndef _ABX500_H
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#define _ABX500_H
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#define NUM_SENSORS 5
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struct abx500_temp;
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/*
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* struct abx500_temp_ops - abx500 chip specific ops
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* @read_sensor: reads gpadc output
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* @irq_handler: irq handler
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* @show_name: hwmon device name
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* @show_label: hwmon attribute label
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* @is_visible: is attribute visible
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*/
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struct abx500_temp_ops {
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int (*read_sensor)(struct abx500_temp *, u8, int *);
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int (*irq_handler)(int, struct abx500_temp *);
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ssize_t (*show_name)(struct device *,
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struct device_attribute *, char *);
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ssize_t (*show_label) (struct device *,
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struct device_attribute *, char *);
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int (*is_visible)(struct attribute *, int);
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};
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/*
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* struct abx500_temp - representation of temp mon device
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* @pdev: platform device
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* @hwmon_dev: hwmon device
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* @ops: abx500 chip specific ops
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* @gpadc_addr: gpadc channel address
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* @min: sensor temperature min value
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* @max: sensor temperature max value
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* @max_hyst: sensor temperature hysteresis value for max limit
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* @min_alarm: sensor temperature min alarm
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* @max_alarm: sensor temperature max alarm
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* @work: delayed work scheduled to monitor temperature periodically
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* @work_active: True if work is active
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* @lock: mutex
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* @monitored_sensors: number of monitored sensors
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* @plat_data: private usage, usually points to platform specific data
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*/
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struct abx500_temp {
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struct platform_device *pdev;
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struct device *hwmon_dev;
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struct abx500_temp_ops ops;
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u8 gpadc_addr[NUM_SENSORS];
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unsigned long min[NUM_SENSORS];
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unsigned long max[NUM_SENSORS];
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unsigned long max_hyst[NUM_SENSORS];
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bool min_alarm[NUM_SENSORS];
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bool max_alarm[NUM_SENSORS];
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struct delayed_work work;
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bool work_active;
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struct mutex lock;
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int monitored_sensors;
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void *plat_data;
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};
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int abx500_hwmon_init(struct abx500_temp *data);
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#endif /* _ABX500_H */
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