diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/device.h | 46 | ||||
| -rw-r--r-- | include/linux/hid.h | 58 |
2 files changed, 91 insertions, 13 deletions
diff --git a/include/linux/device.h b/include/linux/device.h index f0d52e1a6e07..67cec9ec0cd0 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -190,6 +190,22 @@ ssize_t device_show_string(struct device *dev, struct device_attribute *attr, struct device_attribute dev_attr_##_name = __ATTR_RW_MODE(_name, 0600) /** + * DEVICE_ATTR_RW_NAMED - Define a read-write device attribute with a sysfs name + * that differs from the function name. + * @_name: Attribute function preface + * @_attrname: Attribute name as it wil be exposed in the sysfs. + * + * Like DEVICE_ATTR_RW(), but allows for reusing names under separate paths in + * the same driver. + */ +#define DEVICE_ATTR_RW_NAMED(_name, _attrname) \ + struct device_attribute dev_attr_##_name = { \ + .attr = { .name = _attrname, .mode = 0644 }, \ + .show = _name##_show, \ + .store = _name##_store, \ + } + +/** * DEVICE_ATTR_RO - Define a readable device attribute. * @_name: Attribute name. * @@ -208,6 +224,21 @@ ssize_t device_show_string(struct device *dev, struct device_attribute *attr, struct device_attribute dev_attr_##_name = __ATTR_RO_MODE(_name, 0400) /** + * DEVICE_ATTR_RO_NAMED - Define a read-only device attribute with a sysfs name + * that differs from the function name. + * @_name: Attribute function preface + * @_attrname: Attribute name as it wil be exposed in the sysfs. + * + * Like DEVICE_ATTR_RO(), but allows for reusing names under separate paths in + * the same driver. + */ +#define DEVICE_ATTR_RO_NAMED(_name, _attrname) \ + struct device_attribute dev_attr_##_name = { \ + .attr = { .name = _attrname, .mode = 0444 }, \ + .show = _name##_show, \ + } + +/** * DEVICE_ATTR_WO - Define an admin-only writable device attribute. * @_name: Attribute name. * @@ -217,6 +248,21 @@ ssize_t device_show_string(struct device *dev, struct device_attribute *attr, struct device_attribute dev_attr_##_name = __ATTR_WO(_name) /** + * DEVICE_ATTR_WO_NAMED - Define a read-only device attribute with a sysfs name + * that differs from the function name. + * @_name: Attribute function preface + * @_attrname: Attribute name as it wil be exposed in the sysfs. + * + * Like DEVICE_ATTR_WO(), but allows for reusing names under separate paths in + * the same driver. + */ +#define DEVICE_ATTR_WO_NAMED(_name, _attrname) \ + struct device_attribute dev_attr_##_name = { \ + .attr = { .name = _attrname, .mode = 0200 }, \ + .store = _name##_store, \ + } + +/** * DEVICE_ULONG_ATTR - Define a device attribute backed by an unsigned long. * @_name: Attribute name. * @_mode: File mode. diff --git a/include/linux/hid.h b/include/linux/hid.h index 31324609af4d..442a80d79e89 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -634,6 +634,38 @@ enum hid_battery_status { HID_BATTERY_REPORTED, /* Device sent unsolicited battery strength report */ }; +/** + * struct hid_battery - represents a single battery power supply + * @dev: pointer to the parent hid_device + * @ps: the power supply instance + * @min: minimum battery value from HID descriptor + * @max: maximum battery value from HID descriptor + * @report_type: HID report type (input/feature) + * @report_id: HID report ID for this battery + * @charge_status: current charging status + * @status: battery reporting status + * @capacity: current battery capacity (0-100) + * @avoid_query: if true, avoid querying battery (e.g., for stylus) + * @present: if true, battery is present (may be dynamic) + * @ratelimit_time: rate limiting for battery reports + * @list: list node for linking into hid_device's battery list + */ +struct hid_battery { + struct hid_device *dev; + struct power_supply *ps; + __s32 min; + __s32 max; + __s32 report_type; + __s32 report_id; + __s32 charge_status; + enum hid_battery_status status; + __s32 capacity; + bool avoid_query; + bool present; + ktime_t ratelimit_time; + struct list_head list; +}; + struct hid_driver; struct hid_ll_driver; @@ -670,20 +702,10 @@ struct hid_device { #ifdef CONFIG_HID_BATTERY_STRENGTH /* * Power supply information for HID devices which report - * battery strength. power_supply was successfully registered if - * battery is non-NULL. + * battery strength. Each battery is tracked separately in the + * batteries list. */ - struct power_supply *battery; - __s32 battery_capacity; - __s32 battery_min; - __s32 battery_max; - __s32 battery_report_type; - __s32 battery_report_id; - __s32 battery_charge_status; - enum hid_battery_status battery_status; - bool battery_avoid_query; - bool battery_present; - ktime_t battery_ratelimit_time; + struct list_head batteries; #endif unsigned long status; /* see STAT flags above */ @@ -699,6 +721,7 @@ struct hid_device { char name[128]; /* Device name */ char phys[64]; /* Device physical location */ char uniq[64]; /* Device unique identifier (serial #) */ + u64 firmware_version; /* Firmware version */ void *driver_data; @@ -744,6 +767,15 @@ static inline void hid_set_drvdata(struct hid_device *hdev, void *data) dev_set_drvdata(&hdev->dev, data); } +#ifdef CONFIG_HID_BATTERY_STRENGTH +static inline struct hid_battery *hid_get_battery(struct hid_device *hdev) +{ + if (list_empty(&hdev->batteries)) + return NULL; + return list_first_entry(&hdev->batteries, struct hid_battery, list); +} +#endif + #define HID_GLOBAL_STACK_SIZE 4 #define HID_COLLECTION_STACK_SIZE 4 |