diff options
| author | Rajagopala V <rajagopala.v@stericsson.com> | 2011-08-25 13:20:04 +0530 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@stericsson.com> | 2011-09-19 16:00:10 +0200 |
| commit | 2fcf80b44f6943ef03cda4f9e62c90b2effdf270 (patch) | |
| tree | 215ca72fda0871794807e447cc8b7981968f2547 /drivers/hwmon/abx500.h | |
| parent | a38b3ab78080e28487109ceab5d3cb4435bff8ed (diff) | |
abx500: hwmon: generalize AB8500 temperature monitor driver
Generalize ab8500 hwmon driver to support other abx500
variants. Source code is split into generic and variant
specific files.
ST-Ericsson Linux next: NA
ST-Ericsson ID: WP257616
ST-Ericsson FOSS-OUT ID: NA
Change-Id: Ia39feaac455160149d49a5982374da3729ea5301
Signed-off-by: Rajagopala V <rajagopala.v@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/28138
Reviewed-by: QATEST
Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
Diffstat (limited to 'drivers/hwmon/abx500.h')
| -rw-r--r-- | drivers/hwmon/abx500.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/drivers/hwmon/abx500.h b/drivers/hwmon/abx500.h new file mode 100644 index 00000000000..a089a63939d --- /dev/null +++ b/drivers/hwmon/abx500.h @@ -0,0 +1,84 @@ +/* + * Copyright (C) ST-Ericsson SA 2010 + * License terms: GNU General Public License v2 + * Author: Martin Persson <martin.persson@stericsson.com> + */ + +#ifndef _ABX500_H +#define _ABX500_H + +#define NUM_SENSORS 5 + +struct ab8500_gpadc; +struct ab8500_btemp; +struct abx500_temp; + +/** + * struct abx500_temp_ops - abx500 chip specific ops + * @read_sensor: reads gpadc output + * @irq_handler: irq handler + * @show_name: hwmon device name + * @show_label: hwmon attribute label + */ +struct abx500_temp_ops { + int (*read_sensor)(struct abx500_temp *, u8); + int (*irq_handler)(int, struct abx500_temp *); + ssize_t (*show_name)(struct device *, + struct device_attribute *, char *); + ssize_t (*show_label) (struct device *, + struct device_attribute *, char *); +}; + +/** + * struct abx500_temp - representation of temp mon device + * @pdev: platform device + * @hwmon_dev: hwmon device + * @ab8500_gpadc: gpadc interface for ab8500 + * @btemp: battery temperature interface for ab8500 + * @gpadc_addr: gpadc channel address + * @temp: sensor temperature input value + * @min: sensor temperature min value + * @max: sensor temperature max value + * @max_hyst: sensor temperature hysteresis value for max limit + * @crit: sensor temperature critical value + * @min_alarm: sensor temperature min alarm + * @max_alarm: sensor temperature max alarm + * @max_hyst_alarm: sensor temperature hysteresis alarm + * @crit_alarm: sensor temperature critical value alarm + * @work: delayed work scheduled to monitor temperature periodically + * @power_off_work: delayed work scheduled to power off the system + when critical temperature is reached + * @lock: mutex + * @gpadc_monitor_delay: delay between temperature readings in ms + * @power_off_delay: delay before power off in ms + * @monitored_sensors: number of monitored sensors + */ +struct abx500_temp { + struct platform_device *pdev; + struct device *hwmon_dev; + struct ab8500_gpadc *ab8500_gpadc; + struct ab8500_btemp *ab8500_btemp; + struct abx500_temp_ops ops; + u8 gpadc_addr[NUM_SENSORS]; + unsigned long temp[NUM_SENSORS]; + unsigned long min[NUM_SENSORS]; + unsigned long max[NUM_SENSORS]; + unsigned long max_hyst[NUM_SENSORS]; + unsigned long crit[NUM_SENSORS]; + unsigned long min_alarm[NUM_SENSORS]; + unsigned long max_alarm[NUM_SENSORS]; + unsigned long max_hyst_alarm[NUM_SENSORS]; + unsigned long crit_alarm[NUM_SENSORS]; + struct delayed_work work; + struct delayed_work power_off_work; + struct mutex lock; + /* Delay (ms) between temperature readings */ + unsigned long gpadc_monitor_delay; + /* Delay (ms) before power off */ + unsigned long power_off_delay; + int monitored_sensors; +}; + +int abx500_hwmon_init(struct abx500_temp *data) __init; + +#endif /* _ABX500_H */ |