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staging:iio:events - new 64 bit code structure and push out drivers.

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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:
Jonathan Cameron 2011-09-02 17:14:39 +01:00 committed by Greg Kroah-Hartman
parent 32b5eecab0
commit 330c6c57e6
8 changed files with 78 additions and 98 deletions
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8
drivers/staging/iio/accel/lis3l02dq_core.c
View File

@ -200,14 +200,14 @@ static u8 lis3l02dq_axis_map[3][3] = {
}; };
static int lis3l02dq_read_thresh(struct iio_dev *indio_dev, static int lis3l02dq_read_thresh(struct iio_dev *indio_dev,
int e, u64 e,
int *val) int *val)
{ {
return lis3l02dq_read_reg_s16(indio_dev, LIS3L02DQ_REG_THS_L_ADDR, val); return lis3l02dq_read_reg_s16(indio_dev, LIS3L02DQ_REG_THS_L_ADDR, val);
} }
static int lis3l02dq_write_thresh(struct iio_dev *indio_dev, static int lis3l02dq_write_thresh(struct iio_dev *indio_dev,
int event_code, u64 event_code,
int val) int val)
{ {
u16 value = val; u16 value = val;
@ -534,7 +534,7 @@ static struct iio_chan_spec lis3l02dq_channels[] = {
static ssize_t lis3l02dq_read_event_config(struct iio_dev *indio_dev, static ssize_t lis3l02dq_read_event_config(struct iio_dev *indio_dev,
int event_code) u64 event_code)
{ {
u8 val; u8 val;
@ -586,7 +586,7 @@ error_ret:
} }
static int lis3l02dq_write_event_config(struct iio_dev *indio_dev, static int lis3l02dq_write_event_config(struct iio_dev *indio_dev,
int event_code, u64 event_code,
int state) int state)
{ {
int ret = 0; int ret = 0;

10
drivers/staging/iio/accel/sca3000_core.c
View File

@ -695,7 +695,7 @@ static IIO_CONST_ATTR_TEMP_OFFSET("-214.6");
* sca3000_read_thresh() - query of a threshold * sca3000_read_thresh() - query of a threshold
**/ **/
static int sca3000_read_thresh(struct iio_dev *indio_dev, static int sca3000_read_thresh(struct iio_dev *indio_dev,
int e, u64 e,
int *val) int *val)
{ {
int ret, i; int ret, i;
@ -723,8 +723,8 @@ static int sca3000_read_thresh(struct iio_dev *indio_dev,
* sca3000_write_thresh() control of threshold * sca3000_write_thresh() control of threshold
**/ **/
static int sca3000_write_thresh(struct iio_dev *indio_dev, static int sca3000_write_thresh(struct iio_dev *indio_dev,
int e, u64 e,
int val) int val)
{ {
struct sca3000_state *st = iio_priv(indio_dev); struct sca3000_state *st = iio_priv(indio_dev);
int num = IIO_EVENT_CODE_EXTRACT_MODIFIER(e); int num = IIO_EVENT_CODE_EXTRACT_MODIFIER(e);
@ -858,7 +858,7 @@ done:
* sca3000_read_event_config() what events are enabled * sca3000_read_event_config() what events are enabled
**/ **/
static int sca3000_read_event_config(struct iio_dev *indio_dev, static int sca3000_read_event_config(struct iio_dev *indio_dev,
int e) u64 e)
{ {
struct sca3000_state *st = iio_priv(indio_dev); struct sca3000_state *st = iio_priv(indio_dev);
int ret; int ret;
@ -961,7 +961,7 @@ error_ret:
* this mode is disabled. Currently normal mode is assumed. * this mode is disabled. Currently normal mode is assumed.
**/ **/
static int sca3000_write_event_config(struct iio_dev *indio_dev, static int sca3000_write_event_config(struct iio_dev *indio_dev,
int e, u64 e,
int state) int state)
{ {
struct sca3000_state *st = iio_priv(indio_dev); struct sca3000_state *st = iio_priv(indio_dev);

10
drivers/staging/iio/adc/max1363_core.c
View File

@ -553,7 +553,7 @@ static IIO_CONST_ATTR(sampling_frequency_available,
"133000 665000 33300 16600 8300 4200 2000 1000"); "133000 665000 33300 16600 8300 4200 2000 1000");
static int max1363_read_thresh(struct iio_dev *indio_dev, static int max1363_read_thresh(struct iio_dev *indio_dev,
int event_code, u64 event_code,
int *val) int *val)
{ {
struct max1363_state *st = iio_priv(indio_dev); struct max1363_state *st = iio_priv(indio_dev);
@ -565,7 +565,7 @@ static int max1363_read_thresh(struct iio_dev *indio_dev,
} }
static int max1363_write_thresh(struct iio_dev *indio_dev, static int max1363_write_thresh(struct iio_dev *indio_dev,
int event_code, u64 event_code,
int val) int val)
{ {
struct max1363_state *st = iio_priv(indio_dev); struct max1363_state *st = iio_priv(indio_dev);
@ -593,7 +593,7 @@ static int max1363_write_thresh(struct iio_dev *indio_dev,
return 0; return 0;
} }
static const int max1363_event_codes[] = { static const u64 max1363_event_codes[] = {
IIO_UNMOD_EVENT_CODE(IIO_IN, 0, IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING), IIO_UNMOD_EVENT_CODE(IIO_IN, 0, IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING),
IIO_UNMOD_EVENT_CODE(IIO_IN, 1, IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING), IIO_UNMOD_EVENT_CODE(IIO_IN, 1, IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING),
IIO_UNMOD_EVENT_CODE(IIO_IN, 2, IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING), IIO_UNMOD_EVENT_CODE(IIO_IN, 2, IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING),
@ -624,7 +624,7 @@ static irqreturn_t max1363_event_handler(int irq, void *private)
} }
static int max1363_read_event_config(struct iio_dev *indio_dev, static int max1363_read_event_config(struct iio_dev *indio_dev,
int event_code) u64 event_code)
{ {
struct max1363_state *st = iio_priv(indio_dev); struct max1363_state *st = iio_priv(indio_dev);
@ -776,7 +776,7 @@ error_ret:
} }
static int max1363_write_event_config(struct iio_dev *indio_dev, static int max1363_write_event_config(struct iio_dev *indio_dev,
int event_code, u64 event_code,
int state) int state)
{ {
int ret = 0; int ret = 0;

2
drivers/staging/iio/chrdev.h
View File

@ -17,7 +17,7 @@
* the interrupt handler) * the interrupt handler)
*/ */
struct iio_event_data { struct iio_event_data {
int id; u64 id;
s64 timestamp; s64 timestamp;
}; };

39
drivers/staging/iio/iio.h
View File

@ -48,19 +48,22 @@ enum iio_chan_type {
#define IIO_IN IIO_VOLTAGE #define IIO_IN IIO_VOLTAGE
#define IIO_IN_DIFF IIO_VOLTAGE_DIFF #define IIO_IN_DIFF IIO_VOLTAGE_DIFF
#define IIO_MOD_X 0 enum iio_modifier {
#define IIO_MOD_LIGHT_BOTH 0 IIO_NO_MOD,
#define IIO_MOD_Y 1 IIO_MOD_X,
#define IIO_MOD_LIGHT_IR 1 IIO_MOD_Y,
#define IIO_MOD_Z 2 IIO_MOD_Z,
#define IIO_MOD_X_AND_Y 3 IIO_MOD_X_AND_Y,
#define IIO_MOD_X_ANX_Z 4 IIO_MOD_X_ANX_Z,
#define IIO_MOD_Y_AND_Z 5 IIO_MOD_Y_AND_Z,
#define IIO_MOD_X_AND_Y_AND_Z 6 IIO_MOD_X_AND_Y_AND_Z,
#define IIO_MOD_X_OR_Y 7 IIO_MOD_X_OR_Y,
#define IIO_MOD_X_OR_Z 8 IIO_MOD_X_OR_Z,
#define IIO_MOD_Y_OR_Z 9 IIO_MOD_Y_OR_Z,
#define IIO_MOD_X_OR_Y_OR_Z 10 IIO_MOD_X_OR_Y_OR_Z,
IIO_MOD_LIGHT_BOTH,
IIO_MOD_LIGHT_IR,
};
/* Could add the raw attributes as well - allowing buffer only devices */ /* Could add the raw attributes as well - allowing buffer only devices */
enum iio_chan_info_enum { enum iio_chan_info_enum {
@ -243,17 +246,17 @@ struct iio_info {
long mask); long mask);
int (*read_event_config)(struct iio_dev *indio_dev, int (*read_event_config)(struct iio_dev *indio_dev,
int event_code); u64 event_code);
int (*write_event_config)(struct iio_dev *indio_dev, int (*write_event_config)(struct iio_dev *indio_dev,
int event_code, u64 event_code,
int state); int state);
int (*read_event_value)(struct iio_dev *indio_dev, int (*read_event_value)(struct iio_dev *indio_dev,
int event_code, u64 event_code,
int *val); int *val);
int (*write_event_value)(struct iio_dev *indio_dev, int (*write_event_value)(struct iio_dev *indio_dev,
int event_code, u64 event_code,
int val); int val);
int (*validate_trigger)(struct iio_dev *indio_dev, int (*validate_trigger)(struct iio_dev *indio_dev,
struct iio_trigger *trig); struct iio_trigger *trig);
@ -328,7 +331,7 @@ void iio_device_unregister(struct iio_dev *dev_info);
* @ev_code: What event * @ev_code: What event
* @timestamp: When the event occurred * @timestamp: When the event occurred
**/ **/
int iio_push_event(struct iio_dev *dev_info, int ev_code, s64 timestamp); int iio_push_event(struct iio_dev *dev_info, u64 ev_code, s64 timestamp);
extern struct bus_type iio_bus_type; extern struct bus_type iio_bus_type;

59
drivers/staging/iio/industrialio-core.c
View File

@ -71,15 +71,12 @@ static const char * const iio_chan_type_name_spec_complex[] = {
[IIO_VOLTAGE_DIFF] = "voltage%d-voltage%d", [IIO_VOLTAGE_DIFF] = "voltage%d-voltage%d",
}; };
static const char * const iio_modifier_names_light[] = { static const char * const iio_modifier_names[] = {
[IIO_MOD_LIGHT_BOTH] = "both",
[IIO_MOD_LIGHT_IR] = "ir",
};
static const char * const iio_modifier_names_axial[] = {
[IIO_MOD_X] = "x", [IIO_MOD_X] = "x",
[IIO_MOD_Y] = "y", [IIO_MOD_Y] = "y",
[IIO_MOD_Z] = "z", [IIO_MOD_Z] = "z",
[IIO_MOD_LIGHT_BOTH] = "both",
[IIO_MOD_LIGHT_IR] = "ir",
}; };
/* relies on pairs of these shared then separate */ /* relies on pairs of these shared then separate */
@ -124,7 +121,7 @@ struct iio_event_interface {
unsigned long flags; unsigned long flags;
}; };
int iio_push_event(struct iio_dev *dev_info, int ev_code, s64 timestamp) int iio_push_event(struct iio_dev *dev_info, u64 ev_code, s64 timestamp)
{ {
struct iio_event_interface *ev_int = dev_info->event_interface; struct iio_event_interface *ev_int = dev_info->event_interface;
struct iio_detected_event_list *ev; struct iio_detected_event_list *ev;
@ -409,32 +406,14 @@ static int __iio_build_postfix(struct iio_chan_spec const *chan,
if (generic || (!chan->modified && !chan->extend_name)) { if (generic || (!chan->modified && !chan->extend_name)) {
all_post = kasprintf(GFP_KERNEL, "%s", postfix); all_post = kasprintf(GFP_KERNEL, "%s", postfix);
} else if (chan->modified) { } else if (chan->modified) {
const char *intermediate;
switch (chan->type) {
case IIO_INTENSITY:
intermediate
= iio_modifier_names_light[chan->channel2];
break;
case IIO_ACCEL:
case IIO_GYRO:
case IIO_MAGN:
case IIO_INCLI:
case IIO_ROT:
case IIO_ANGL:
intermediate
= iio_modifier_names_axial[chan->channel2];
break;
default:
return -EINVAL;
}
if (chan->extend_name) if (chan->extend_name)
all_post = kasprintf(GFP_KERNEL, "%s_%s_%s", all_post = kasprintf(GFP_KERNEL, "%s_%s_%s",
intermediate, iio_modifier_names[chan->channel2],
chan->extend_name, chan->extend_name,
postfix); postfix);
else else
all_post = kasprintf(GFP_KERNEL, "%s_%s", all_post = kasprintf(GFP_KERNEL, "%s_%s",
intermediate, iio_modifier_names[chan->channel2],
postfix); postfix);
} else } else
all_post = kasprintf(GFP_KERNEL, "%s_%s", chan->extend_name, all_post = kasprintf(GFP_KERNEL, "%s_%s", chan->extend_name,
@ -824,28 +803,22 @@ static int iio_device_add_event_sysfs(struct iio_dev *dev_info,
ret = -ENOMEM; ret = -ENOMEM;
goto error_ret; goto error_ret;
} }
switch (chan->type) { if (chan->modified)
/* Switch this to a table at some point */
case IIO_VOLTAGE:
mask = IIO_UNMOD_EVENT_CODE(chan->type, chan->channel,
i/IIO_EV_TYPE_MAX,
i%IIO_EV_TYPE_MAX);
break;
case IIO_ACCEL:
mask = IIO_MOD_EVENT_CODE(chan->type, 0, chan->channel, mask = IIO_MOD_EVENT_CODE(chan->type, 0, chan->channel,
i/IIO_EV_TYPE_MAX, i/IIO_EV_TYPE_MAX,
i%IIO_EV_TYPE_MAX); i%IIO_EV_TYPE_MAX);
break; else if (chan->type == IIO_VOLTAGE_DIFF)
case IIO_VOLTAGE_DIFF: mask = IIO_MOD_EVENT_CODE(chan->type,
mask = IIO_MOD_EVENT_CODE(chan->type, chan->channel, chan->channel,
chan->channel2, chan->channel2,
i/IIO_EV_TYPE_MAX, i/IIO_EV_TYPE_MAX,
i%IIO_EV_TYPE_MAX); i%IIO_EV_TYPE_MAX);
break; else
default: mask = IIO_UNMOD_EVENT_CODE(chan->type,
printk(KERN_INFO "currently unhandled type of event\n"); chan->channel,
continue; i/IIO_EV_TYPE_MAX,
} i%IIO_EV_TYPE_MAX);
ret = __iio_add_chan_devattr(postfix, ret = __iio_add_chan_devattr(postfix,
"events", "events",
chan, chan,

12
drivers/staging/iio/light/tsl2563.c
View File

@ -549,8 +549,8 @@ static const struct iio_chan_spec tsl2563_channels[] = {
}; };
static int tsl2563_read_thresh(struct iio_dev *indio_dev, static int tsl2563_read_thresh(struct iio_dev *indio_dev,
int event_code, u64 event_code,
int *val) int *val)
{ {
struct tsl2563_chip *chip = iio_priv(indio_dev); struct tsl2563_chip *chip = iio_priv(indio_dev);
@ -569,7 +569,7 @@ static int tsl2563_read_thresh(struct iio_dev *indio_dev,
} }
static ssize_t tsl2563_write_thresh(struct iio_dev *indio_dev, static ssize_t tsl2563_write_thresh(struct iio_dev *indio_dev,
int event_code, u64 event_code,
int val) int val)
{ {
struct tsl2563_chip *chip = iio_priv(indio_dev); struct tsl2563_chip *chip = iio_priv(indio_dev);
@ -617,8 +617,8 @@ static irqreturn_t tsl2563_event_handler(int irq, void *private)
} }
static int tsl2563_write_interrupt_config(struct iio_dev *indio_dev, static int tsl2563_write_interrupt_config(struct iio_dev *indio_dev,
int event_code, u64 event_code,
int state) int state)
{ {
struct tsl2563_chip *chip = iio_priv(indio_dev); struct tsl2563_chip *chip = iio_priv(indio_dev);
int ret = 0; int ret = 0;
@ -659,7 +659,7 @@ out:
} }
static int tsl2563_read_interrupt_config(struct iio_dev *indio_dev, static int tsl2563_read_interrupt_config(struct iio_dev *indio_dev,
int event_code) u64 event_code)
{ {
struct tsl2563_chip *chip = iio_priv(indio_dev); struct tsl2563_chip *chip = iio_priv(indio_dev);
int ret; int ret;

36
drivers/staging/iio/sysfs.h
View File

@ -114,36 +114,40 @@ struct iio_const_attr {
#define IIO_CONST_ATTR_TEMP_SCALE(_string) \ #define IIO_CONST_ATTR_TEMP_SCALE(_string) \
IIO_CONST_ATTR(temp_scale, _string) IIO_CONST_ATTR(temp_scale, _string)
#define IIO_EV_TYPE_THRESH 0 enum iio_event_type {
#define IIO_EV_TYPE_MAG 1 IIO_EV_TYPE_THRESH,
#define IIO_EV_TYPE_ROC 2 IIO_EV_TYPE_MAG,
IIO_EV_TYPE_ROC,
};
#define IIO_EV_DIR_EITHER 0 enum iio_event_direction {
#define IIO_EV_DIR_RISING 1 IIO_EV_DIR_EITHER,
#define IIO_EV_DIR_FALLING 2 IIO_EV_DIR_RISING,
IIO_EV_DIR_FALLING,
};
#define IIO_EVENT_CODE(chan_type, modifier, direction, \
type, chan, chan1, chan2) \
(((u64)type << 56) | ((u64)direction << 48) | ((u64)modifier << 40) | \
((u64)chan_type << 32) | (chan2 << 16) | chan1 | chan)
#define IIO_EV_TYPE_MAX 8 #define IIO_EV_TYPE_MAX 8
#define IIO_EV_BIT(type, direction) \ #define IIO_EV_BIT(type, direction) \
(1 << (type*IIO_EV_TYPE_MAX + 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) | \
((modifier) << 13) | ((type) << 16) | ((direction) << 24))
#define IIO_MOD_EVENT_CODE(channelclass, number, modifier, \ #define IIO_MOD_EVENT_CODE(channelclass, number, modifier, \
type, direction) \ type, direction) \
IIO_EVENT_CODE(channelclass, 1, number, modifier, type, direction) IIO_EVENT_CODE(channelclass, modifier, direction, type, number, 0, 0)
#define IIO_UNMOD_EVENT_CODE(channelclass, number, type, direction) \ #define IIO_UNMOD_EVENT_CODE(channelclass, number, type, direction) \
IIO_EVENT_CODE(channelclass, 0, number, 0, type, direction) IIO_EVENT_CODE(channelclass, 0, direction, type, number, 0, 0)
#define IIO_EVENT_CODE_EXTRACT_DIR(mask) ((mask >> 24) & 0xf) #define IIO_EVENT_CODE_EXTRACT_DIR(mask) ((mask >> 48) & 0xFF)
/* Event code number extraction depends on which type of event we have. /* Event code number extraction depends on which type of event we have.
* Perhaps review this function in the future*/ * Perhaps review this function in the future*/
#define IIO_EVENT_CODE_EXTRACT_NUM(mask) ((mask >> 9) & 0x0f) #define IIO_EVENT_CODE_EXTRACT_NUM(mask) (mask & 0xFFFF)
#define IIO_EVENT_CODE_EXTRACT_MODIFIER(mask) ((mask >> 13) & 0x7) #define IIO_EVENT_CODE_EXTRACT_MODIFIER(mask) ((mask >> 40) & 0xFF)
#endif /* _INDUSTRIAL_IO_SYSFS_H_ */ #endif /* _INDUSTRIAL_IO_SYSFS_H_ */