staging:iio:events - new 64 bit code structure and push out drivers.
This costs us nothing in event storage (as we are carrying a 64 bit timestamp in the structure) and gives us lots more room to play with. Also allows for more channels which some parts need. V2: Cleanup some loose ends (such as the switch with only one option now). Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
parent
32b5eecab0
commit
330c6c57e6
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@ -200,14 +200,14 @@ static u8 lis3l02dq_axis_map[3][3] = {
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};
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static int lis3l02dq_read_thresh(struct iio_dev *indio_dev,
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int e,
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u64 e,
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int *val)
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{
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return lis3l02dq_read_reg_s16(indio_dev, LIS3L02DQ_REG_THS_L_ADDR, val);
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}
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static int lis3l02dq_write_thresh(struct iio_dev *indio_dev,
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int event_code,
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u64 event_code,
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int val)
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{
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u16 value = val;
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@ -534,7 +534,7 @@ static struct iio_chan_spec lis3l02dq_channels[] = {
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static ssize_t lis3l02dq_read_event_config(struct iio_dev *indio_dev,
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int event_code)
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u64 event_code)
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{
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u8 val;
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@ -586,7 +586,7 @@ error_ret:
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}
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static int lis3l02dq_write_event_config(struct iio_dev *indio_dev,
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int event_code,
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u64 event_code,
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int state)
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{
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int ret = 0;
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@ -695,7 +695,7 @@ static IIO_CONST_ATTR_TEMP_OFFSET("-214.6");
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* sca3000_read_thresh() - query of a threshold
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**/
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static int sca3000_read_thresh(struct iio_dev *indio_dev,
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int e,
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u64 e,
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int *val)
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{
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int ret, i;
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@ -723,8 +723,8 @@ static int sca3000_read_thresh(struct iio_dev *indio_dev,
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* sca3000_write_thresh() control of threshold
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**/
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static int sca3000_write_thresh(struct iio_dev *indio_dev,
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int e,
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int val)
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u64 e,
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int val)
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{
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struct sca3000_state *st = iio_priv(indio_dev);
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int num = IIO_EVENT_CODE_EXTRACT_MODIFIER(e);
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@ -858,7 +858,7 @@ done:
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* sca3000_read_event_config() what events are enabled
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**/
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static int sca3000_read_event_config(struct iio_dev *indio_dev,
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int e)
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u64 e)
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{
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struct sca3000_state *st = iio_priv(indio_dev);
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int ret;
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@ -961,7 +961,7 @@ error_ret:
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* this mode is disabled. Currently normal mode is assumed.
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**/
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static int sca3000_write_event_config(struct iio_dev *indio_dev,
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int e,
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u64 e,
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int state)
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{
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struct sca3000_state *st = iio_priv(indio_dev);
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@ -553,7 +553,7 @@ static IIO_CONST_ATTR(sampling_frequency_available,
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"133000 665000 33300 16600 8300 4200 2000 1000");
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static int max1363_read_thresh(struct iio_dev *indio_dev,
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int event_code,
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u64 event_code,
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int *val)
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{
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struct max1363_state *st = iio_priv(indio_dev);
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@ -565,7 +565,7 @@ static int max1363_read_thresh(struct iio_dev *indio_dev,
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}
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static int max1363_write_thresh(struct iio_dev *indio_dev,
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int event_code,
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u64 event_code,
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int val)
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{
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struct max1363_state *st = iio_priv(indio_dev);
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@ -593,7 +593,7 @@ static int max1363_write_thresh(struct iio_dev *indio_dev,
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return 0;
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}
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static const int max1363_event_codes[] = {
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static const u64 max1363_event_codes[] = {
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IIO_UNMOD_EVENT_CODE(IIO_IN, 0, IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING),
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IIO_UNMOD_EVENT_CODE(IIO_IN, 1, IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING),
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IIO_UNMOD_EVENT_CODE(IIO_IN, 2, IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING),
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@ -624,7 +624,7 @@ static irqreturn_t max1363_event_handler(int irq, void *private)
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}
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static int max1363_read_event_config(struct iio_dev *indio_dev,
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int event_code)
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u64 event_code)
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{
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struct max1363_state *st = iio_priv(indio_dev);
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@ -776,7 +776,7 @@ error_ret:
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}
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static int max1363_write_event_config(struct iio_dev *indio_dev,
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int event_code,
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u64 event_code,
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int state)
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{
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int ret = 0;
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@ -17,7 +17,7 @@
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* the interrupt handler)
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*/
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struct iio_event_data {
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int id;
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u64 id;
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s64 timestamp;
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};
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@ -48,19 +48,22 @@ enum iio_chan_type {
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#define IIO_IN IIO_VOLTAGE
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#define IIO_IN_DIFF IIO_VOLTAGE_DIFF
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#define IIO_MOD_X 0
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#define IIO_MOD_LIGHT_BOTH 0
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#define IIO_MOD_Y 1
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#define IIO_MOD_LIGHT_IR 1
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#define IIO_MOD_Z 2
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#define IIO_MOD_X_AND_Y 3
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#define IIO_MOD_X_ANX_Z 4
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#define IIO_MOD_Y_AND_Z 5
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#define IIO_MOD_X_AND_Y_AND_Z 6
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#define IIO_MOD_X_OR_Y 7
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#define IIO_MOD_X_OR_Z 8
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#define IIO_MOD_Y_OR_Z 9
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#define IIO_MOD_X_OR_Y_OR_Z 10
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enum iio_modifier {
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IIO_NO_MOD,
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IIO_MOD_X,
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IIO_MOD_Y,
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IIO_MOD_Z,
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IIO_MOD_X_AND_Y,
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IIO_MOD_X_ANX_Z,
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IIO_MOD_Y_AND_Z,
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IIO_MOD_X_AND_Y_AND_Z,
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IIO_MOD_X_OR_Y,
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IIO_MOD_X_OR_Z,
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IIO_MOD_Y_OR_Z,
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IIO_MOD_X_OR_Y_OR_Z,
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IIO_MOD_LIGHT_BOTH,
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IIO_MOD_LIGHT_IR,
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};
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/* Could add the raw attributes as well - allowing buffer only devices */
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enum iio_chan_info_enum {
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@ -243,17 +246,17 @@ struct iio_info {
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long mask);
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int (*read_event_config)(struct iio_dev *indio_dev,
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int event_code);
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u64 event_code);
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int (*write_event_config)(struct iio_dev *indio_dev,
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int event_code,
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u64 event_code,
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int state);
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int (*read_event_value)(struct iio_dev *indio_dev,
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int event_code,
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u64 event_code,
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int *val);
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int (*write_event_value)(struct iio_dev *indio_dev,
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int event_code,
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u64 event_code,
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int val);
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int (*validate_trigger)(struct iio_dev *indio_dev,
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struct iio_trigger *trig);
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@ -328,7 +331,7 @@ void iio_device_unregister(struct iio_dev *dev_info);
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* @ev_code: What event
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* @timestamp: When the event occurred
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**/
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int iio_push_event(struct iio_dev *dev_info, int ev_code, s64 timestamp);
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int iio_push_event(struct iio_dev *dev_info, u64 ev_code, s64 timestamp);
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extern struct bus_type iio_bus_type;
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@ -71,15 +71,12 @@ static const char * const iio_chan_type_name_spec_complex[] = {
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[IIO_VOLTAGE_DIFF] = "voltage%d-voltage%d",
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};
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static const char * const iio_modifier_names_light[] = {
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[IIO_MOD_LIGHT_BOTH] = "both",
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[IIO_MOD_LIGHT_IR] = "ir",
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};
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static const char * const iio_modifier_names_axial[] = {
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static const char * const iio_modifier_names[] = {
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[IIO_MOD_X] = "x",
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[IIO_MOD_Y] = "y",
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[IIO_MOD_Z] = "z",
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[IIO_MOD_LIGHT_BOTH] = "both",
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[IIO_MOD_LIGHT_IR] = "ir",
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};
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/* relies on pairs of these shared then separate */
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@ -124,7 +121,7 @@ struct iio_event_interface {
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unsigned long flags;
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};
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int iio_push_event(struct iio_dev *dev_info, int ev_code, s64 timestamp)
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int iio_push_event(struct iio_dev *dev_info, u64 ev_code, s64 timestamp)
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{
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struct iio_event_interface *ev_int = dev_info->event_interface;
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struct iio_detected_event_list *ev;
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if (generic || (!chan->modified && !chan->extend_name)) {
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all_post = kasprintf(GFP_KERNEL, "%s", postfix);
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} else if (chan->modified) {
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const char *intermediate;
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switch (chan->type) {
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case IIO_INTENSITY:
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intermediate
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= iio_modifier_names_light[chan->channel2];
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break;
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case IIO_ACCEL:
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case IIO_GYRO:
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case IIO_MAGN:
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case IIO_INCLI:
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case IIO_ROT:
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case IIO_ANGL:
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intermediate
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= iio_modifier_names_axial[chan->channel2];
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break;
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default:
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return -EINVAL;
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}
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if (chan->extend_name)
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all_post = kasprintf(GFP_KERNEL, "%s_%s_%s",
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intermediate,
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iio_modifier_names[chan->channel2],
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chan->extend_name,
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postfix);
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else
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all_post = kasprintf(GFP_KERNEL, "%s_%s",
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intermediate,
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iio_modifier_names[chan->channel2],
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postfix);
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} else
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all_post = kasprintf(GFP_KERNEL, "%s_%s", chan->extend_name,
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ret = -ENOMEM;
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goto error_ret;
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}
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switch (chan->type) {
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/* Switch this to a table at some point */
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case IIO_VOLTAGE:
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mask = IIO_UNMOD_EVENT_CODE(chan->type, chan->channel,
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i/IIO_EV_TYPE_MAX,
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i%IIO_EV_TYPE_MAX);
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break;
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case IIO_ACCEL:
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if (chan->modified)
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mask = IIO_MOD_EVENT_CODE(chan->type, 0, chan->channel,
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i/IIO_EV_TYPE_MAX,
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i%IIO_EV_TYPE_MAX);
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break;
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case IIO_VOLTAGE_DIFF:
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mask = IIO_MOD_EVENT_CODE(chan->type, chan->channel,
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else if (chan->type == IIO_VOLTAGE_DIFF)
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mask = IIO_MOD_EVENT_CODE(chan->type,
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chan->channel,
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chan->channel2,
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i/IIO_EV_TYPE_MAX,
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i%IIO_EV_TYPE_MAX);
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break;
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default:
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printk(KERN_INFO "currently unhandled type of event\n");
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continue;
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}
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else
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mask = IIO_UNMOD_EVENT_CODE(chan->type,
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chan->channel,
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i/IIO_EV_TYPE_MAX,
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i%IIO_EV_TYPE_MAX);
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ret = __iio_add_chan_devattr(postfix,
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"events",
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chan,
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@ -549,8 +549,8 @@ static const struct iio_chan_spec tsl2563_channels[] = {
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};
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static int tsl2563_read_thresh(struct iio_dev *indio_dev,
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int event_code,
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int *val)
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u64 event_code,
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int *val)
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{
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struct tsl2563_chip *chip = iio_priv(indio_dev);
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@ -569,7 +569,7 @@ static int tsl2563_read_thresh(struct iio_dev *indio_dev,
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}
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static ssize_t tsl2563_write_thresh(struct iio_dev *indio_dev,
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int event_code,
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u64 event_code,
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int val)
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{
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struct tsl2563_chip *chip = iio_priv(indio_dev);
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@ -617,8 +617,8 @@ static irqreturn_t tsl2563_event_handler(int irq, void *private)
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}
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static int tsl2563_write_interrupt_config(struct iio_dev *indio_dev,
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int event_code,
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int state)
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u64 event_code,
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int state)
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{
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struct tsl2563_chip *chip = iio_priv(indio_dev);
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int ret = 0;
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@ -659,7 +659,7 @@ out:
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}
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static int tsl2563_read_interrupt_config(struct iio_dev *indio_dev,
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int event_code)
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u64 event_code)
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{
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struct tsl2563_chip *chip = iio_priv(indio_dev);
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int ret;
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@ -114,36 +114,40 @@ struct iio_const_attr {
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#define IIO_CONST_ATTR_TEMP_SCALE(_string) \
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IIO_CONST_ATTR(temp_scale, _string)
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#define IIO_EV_TYPE_THRESH 0
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#define IIO_EV_TYPE_MAG 1
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#define IIO_EV_TYPE_ROC 2
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enum iio_event_type {
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IIO_EV_TYPE_THRESH,
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IIO_EV_TYPE_MAG,
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IIO_EV_TYPE_ROC,
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};
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#define IIO_EV_DIR_EITHER 0
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#define IIO_EV_DIR_RISING 1
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#define IIO_EV_DIR_FALLING 2
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enum iio_event_direction {
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IIO_EV_DIR_EITHER,
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IIO_EV_DIR_RISING,
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IIO_EV_DIR_FALLING,
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};
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#define IIO_EVENT_CODE(chan_type, modifier, direction, \
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type, chan, chan1, chan2) \
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(((u64)type << 56) | ((u64)direction << 48) | ((u64)modifier << 40) | \
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((u64)chan_type << 32) | (chan2 << 16) | chan1 | chan)
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#define IIO_EV_TYPE_MAX 8
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#define IIO_EV_BIT(type, direction) \
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(1 << (type*IIO_EV_TYPE_MAX + direction))
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#define IIO_EVENT_CODE(channelclass, orient_bit, number, \
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modifier, type, direction) \
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(channelclass | (orient_bit << 8) | ((number) << 9) | \
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((modifier) << 13) | ((type) << 16) | ((direction) << 24))
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#define IIO_MOD_EVENT_CODE(channelclass, number, modifier, \
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type, direction) \
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IIO_EVENT_CODE(channelclass, 1, number, modifier, type, direction)
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IIO_EVENT_CODE(channelclass, modifier, direction, type, number, 0, 0)
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#define IIO_UNMOD_EVENT_CODE(channelclass, number, type, direction) \
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IIO_EVENT_CODE(channelclass, 0, number, 0, type, direction)
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IIO_EVENT_CODE(channelclass, 0, direction, type, number, 0, 0)
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#define IIO_EVENT_CODE_EXTRACT_DIR(mask) ((mask >> 24) & 0xf)
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#define IIO_EVENT_CODE_EXTRACT_DIR(mask) ((mask >> 48) & 0xFF)
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/* Event code number extraction depends on which type of event we have.
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* Perhaps review this function in the future*/
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#define IIO_EVENT_CODE_EXTRACT_NUM(mask) ((mask >> 9) & 0x0f)
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#define IIO_EVENT_CODE_EXTRACT_NUM(mask) (mask & 0xFFFF)
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#define IIO_EVENT_CODE_EXTRACT_MODIFIER(mask) ((mask >> 13) & 0x7)
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#define IIO_EVENT_CODE_EXTRACT_MODIFIER(mask) ((mask >> 40) & 0xFF)
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#endif /* _INDUSTRIAL_IO_SYSFS_H_ */
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