diff options
Diffstat (limited to 'drivers/staging/iio/sysfs.h')
| -rw-r--r-- | drivers/staging/iio/sysfs.h | 184 |
1 files changed, 33 insertions, 151 deletions
diff --git a/drivers/staging/iio/sysfs.h b/drivers/staging/iio/sysfs.h index 24b74ddcd083..dd79b5844212 100644 --- a/drivers/staging/iio/sysfs.h +++ b/drivers/staging/iio/sysfs.h @@ -15,30 +15,18 @@ #include "iio.h" /** - * struct iio_event_attr - event control attribute - * @dev_attr: underlying device attribute - * @mask: mask for the event when detecting - * @listel: list header to allow addition to list of event handlers -*/ -struct iio_event_attr { - struct device_attribute dev_attr; - int mask; - struct iio_event_handler_list *listel; -}; - -#define to_iio_event_attr(_dev_attr) \ - container_of(_dev_attr, struct iio_event_attr, dev_attr) - -/** * struct iio_dev_attr - iio specific device attribute * @dev_attr: underlying device attribute * @address: associated register address * @val2: secondary attribute value + * @l: list head for maintaining list of dynamically created attrs. */ struct iio_dev_attr { struct device_attribute dev_attr; int address; int val2; + struct list_head l; + struct iio_chan_spec const *c; }; #define to_iio_dev_attr(_dev_attr) \ @@ -101,13 +89,6 @@ struct iio_const_attr { IIO_DEVICE_ATTR(revision, S_IRUGO, _show, NULL, 0) /** - * IIO_DEV_ATTR_NAME - chip type dependent identifier - * @_show: output method for the attribute - **/ -#define IIO_DEV_ATTR_NAME(_show) \ - IIO_DEVICE_ATTR(name, S_IRUGO, _show, NULL, 0) - -/** * IIO_DEV_ATTR_RESET: resets the device **/ #define IIO_DEV_ATTR_RESET(_store) \ @@ -180,104 +161,27 @@ struct iio_const_attr { #define IIO_CONST_ATTR_TEMP_SCALE(_string) \ IIO_CONST_ATTR(temp_scale, _string) -/** - * IIO_EVENT_SH - generic shared event handler - * @_name: event name - * @_handler: handler function to be called - * - * This is used in cases where more than one event may result from a single - * handler. Often the case that some alarm register must be read and multiple - * alarms may have been triggered. - **/ -#define IIO_EVENT_SH(_name, _handler) \ - static struct iio_event_handler_list \ - iio_event_##_name = { \ - .handler = _handler, \ - .refcount = 0, \ - .exist_lock = __MUTEX_INITIALIZER(iio_event_##_name \ - .exist_lock), \ - .list = { \ - .next = &iio_event_##_name.list, \ - .prev = &iio_event_##_name.list, \ - }, \ - }; - -/** - * IIO_EVENT_ATTR_SH - generic shared event attribute - * @_name: event name - * @_ev_list: event handler list - * @_show: output method for the attribute - * @_store: input method for the attribute - * @_mask: mask used when detecting the event - * - * An attribute with an associated IIO_EVENT_SH - **/ -#define IIO_EVENT_ATTR_SH(_name, _ev_list, _show, _store, _mask) \ - static struct iio_event_attr \ - iio_event_attr_##_name \ - = { .dev_attr = __ATTR(_name, S_IRUGO | S_IWUSR, \ - _show, _store), \ - .mask = _mask, \ - .listel = &_ev_list }; - -#define IIO_EVENT_ATTR_NAMED_SH(_vname, _name, _ev_list, _show, _store, _mask) \ - static struct iio_event_attr \ - iio_event_attr_##_vname \ - = { .dev_attr = __ATTR(_name, S_IRUGO | S_IWUSR, \ - _show, _store), \ - .mask = _mask, \ - .listel = &_ev_list }; - -/** - * IIO_EVENT_ATTR - non-shared event attribute - * @_name: event name - * @_show: output method for the attribute - * @_store: input method for the attribute - * @_mask: mask used when detecting the event - * @_handler: handler function to be called - **/ -#define IIO_EVENT_ATTR(_name, _show, _store, _mask, _handler) \ - IIO_EVENT_SH(_name, _handler); \ - static struct \ - iio_event_attr \ - iio_event_attr_##_name \ - = { .dev_attr = __ATTR(_name, S_IRUGO | S_IWUSR, \ - _show, _store), \ - .mask = _mask, \ - .listel = &iio_event_##_name }; \ - -/** - * IIO_EVENT_ATTR_DATA_RDY - event driven by data ready signal - * @_show: output method for the attribute - * @_store: input method for the attribute - * @_mask: mask used when detecting the event - * @_handler: handler function to be called - * - * Not typically implemented in devices where full triggering support - * has been implemented. - **/ -#define IIO_EVENT_ATTR_DATA_RDY(_show, _store, _mask, _handler) \ - IIO_EVENT_ATTR(data_rdy, _show, _store, _mask, _handler) - -#define IIO_EV_CLASS_BUFFER 0 -#define IIO_EV_CLASS_IN 1 -#define IIO_EV_CLASS_ACCEL 2 -#define IIO_EV_CLASS_GYRO 3 -#define IIO_EV_CLASS_MAGN 4 -#define IIO_EV_CLASS_LIGHT 5 -#define IIO_EV_CLASS_PROXIMITY 6 - -#define IIO_EV_MOD_X 0 -#define IIO_EV_MOD_Y 1 -#define IIO_EV_MOD_Z 2 -#define IIO_EV_MOD_X_AND_Y 3 -#define IIO_EV_MOD_X_ANX_Z 4 -#define IIO_EV_MOD_Y_AND_Z 5 -#define IIO_EV_MOD_X_AND_Y_AND_Z 6 -#define IIO_EV_MOD_X_OR_Y 7 -#define IIO_EV_MOD_X_OR_Z 8 -#define IIO_EV_MOD_Y_OR_Z 9 -#define IIO_EV_MOD_X_OR_Y_OR_Z 10 +/* must match our channel defs */ +#define IIO_EV_CLASS_IN IIO_IN +#define IIO_EV_CLASS_IN_DIFF IIO_IN_DIFF +#define IIO_EV_CLASS_ACCEL IIO_ACCEL +#define IIO_EV_CLASS_GYRO IIO_GYRO +#define IIO_EV_CLASS_MAGN IIO_MAGN +#define IIO_EV_CLASS_LIGHT IIO_LIGHT +#define IIO_EV_CLASS_PROXIMITY IIO_PROXIMITY +#define IIO_EV_CLASS_TEMP IIO_TEMP + +#define IIO_EV_MOD_X IIO_MOD_X +#define IIO_EV_MOD_Y IIO_MOD_Y +#define IIO_EV_MOD_Z IIO_MOD_Z +#define IIO_EV_MOD_X_AND_Y IIO_MOD_X_AND_Y +#define IIO_EV_MOD_X_ANX_Z IIO_MOD_X_AND_Z +#define IIO_EV_MOD_Y_AND_Z IIO_MOD_Y_AND_Z +#define IIO_EV_MOD_X_AND_Y_AND_Z IIO_MOD_X_AND_Y_AND_Z +#define IIO_EV_MOD_X_OR_Y IIO_MOD_X_OR_Y +#define IIO_EV_MOD_X_OR_Z IIO_MOD_X_OR_Z +#define IIO_EV_MOD_Y_OR_Z IIO_MOD_Y_OR_Z +#define IIO_EV_MOD_X_OR_Y_OR_Z IIO_MOD_X_OR_Y_OR_Z #define IIO_EV_TYPE_THRESH 0 #define IIO_EV_TYPE_MAG 1 @@ -287,6 +191,10 @@ struct iio_const_attr { #define IIO_EV_DIR_RISING 1 #define IIO_EV_DIR_FALLING 2 +#define IIO_EV_TYPE_MAX 8 +#define IIO_EV_BIT(type, direction) \ + (1 << (type*IIO_EV_TYPE_MAX + direction)) + #define IIO_EVENT_CODE(channelclass, orient_bit, number, \ modifier, type, direction) \ (channelclass | (orient_bit << 8) | ((number) << 9) | \ @@ -303,38 +211,12 @@ struct iio_const_attr { #define IIO_BUFFER_EVENT_CODE(code) \ (IIO_EV_CLASS_BUFFER | (code << 8)) -/** - * IIO_EVENT_ATTR_RING_50_FULL - ring buffer event to indicate 50% full - * @_show: output method for the attribute - * @_store: input method for the attribute - * @_mask: mask used when detecting the event - * @_handler: handler function to be called - **/ -#define IIO_EVENT_ATTR_RING_50_FULL(_show, _store, _mask, _handler) \ - IIO_EVENT_ATTR(ring_50_full, _show, _store, _mask, _handler) - -/** - * IIO_EVENT_ATTR_RING_50_FULL_SH - shared ring event to indicate 50% full - * @_evlist: event handler list - * @_show: output method for the attribute - * @_store: input method for the attribute - * @_mask: mask used when detecting the event - **/ -#define IIO_EVENT_ATTR_RING_50_FULL_SH(_evlist, _show, _store, _mask) \ - IIO_EVENT_ATTR_SH(ring_50_full, _evlist, _show, _store, _mask) +#define IIO_EVENT_CODE_EXTRACT_DIR(mask) ((mask >> 24) & 0xf) -/** - * IIO_EVENT_ATTR_RING_75_FULL_SH - shared ring event to indicate 75% full - * @_evlist: event handler list - * @_show: output method for the attribute - * @_store: input method for the attribute - * @_mask: mask used when detecting the event - **/ -#define IIO_EVENT_ATTR_RING_75_FULL_SH(_evlist, _show, _store, _mask) \ - IIO_EVENT_ATTR_SH(ring_75_full, _evlist, _show, _store, _mask) +/* Event code number extraction depends on which type of event we have. + * Perhaps review this function in the future*/ +#define IIO_EVENT_CODE_EXTRACT_NUM(mask) ((mask >> 9) & 0x0f) -#define IIO_EVENT_CODE_RING_50_FULL IIO_BUFFER_EVENT_CODE(0) -#define IIO_EVENT_CODE_RING_75_FULL IIO_BUFFER_EVENT_CODE(1) -#define IIO_EVENT_CODE_RING_100_FULL IIO_BUFFER_EVENT_CODE(2) +#define IIO_EVENT_CODE_EXTRACT_MODIFIER(mask) ((mask >> 13) & 0x7) #endif /* _INDUSTRIAL_IO_SYSFS_H_ */ |