* [PATCH 0/3] blue part 7: IIO Allow for more channels.
@ 2011-07-25 13:35 Jonathan Cameron
2011-07-25 13:35 ` [PATCH 1/3] staging:iio: remove broken support for multiple event interfaces Jonathan Cameron
` (2 more replies)
0 siblings, 3 replies; 8+ messages in thread
From: Jonathan Cameron @ 2011-07-25 13:35 UTC (permalink / raw)
To: linux-iio; +Cc: Jonathan Cameron
First a cleanup to remove the support for multiple event interfaces.
It has been broken for a long time and no one was using it anyway.
Second replaces the int masks with bitmaps to allow for many more channels.
Third switchs to larger event code simplifying code and allowing more space.
Thanks,
Jonathan
Jonathan Cameron (3):
staging:iio: remove broken support for multiple event interfaces.
staging:iio: Switch the channel masks to bitmaps so as to allow for
more channels.
staging:iio:events - new 64 bit code structure and push out drivers.
drivers/staging/iio/accel/lis3l02dq_core.c | 21 ++--
drivers/staging/iio/accel/lis3l02dq_ring.c | 5 +-
drivers/staging/iio/accel/sca3000_core.c | 19 ++--
drivers/staging/iio/adc/ad7150.c | 21 ++--
drivers/staging/iio/adc/ad7291.c | 13 +--
drivers/staging/iio/adc/ad7298_ring.c | 4 +-
drivers/staging/iio/adc/ad7745.c | 5 +-
drivers/staging/iio/adc/ad7793.c | 18 ++--
drivers/staging/iio/adc/ad7816.c | 5 +-
drivers/staging/iio/adc/ad7887.h | 4 +-
drivers/staging/iio/adc/ad7887_ring.c | 10 +-
drivers/staging/iio/adc/ad799x.h | 4 +-
drivers/staging/iio/adc/ad799x_core.c | 6 +-
drivers/staging/iio/adc/ad799x_ring.c | 18 +--
drivers/staging/iio/adc/adt7310.c | 7 +-
drivers/staging/iio/adc/adt7410.c | 7 +-
drivers/staging/iio/adc/adt75.c | 3 +-
drivers/staging/iio/adc/max1363.h | 8 +-
drivers/staging/iio/adc/max1363_core.c | 51 +++++-----
drivers/staging/iio/adc/max1363_ring.c | 22 ++--
drivers/staging/iio/addac/adt7316.c | 18 ++--
drivers/staging/iio/chrdev.h | 2 +-
drivers/staging/iio/dac/ad5504.c | 4 +-
drivers/staging/iio/iio.h | 51 +++++-----
drivers/staging/iio/imu/adis16400_ring.c | 9 +-
drivers/staging/iio/industrialio-core.c | 160 +++++++++++++---------------
drivers/staging/iio/industrialio-ring.c | 91 +++++++++++++++-
drivers/staging/iio/light/tsl2563.c | 15 ++--
drivers/staging/iio/meter/ade7758.h | 2 +-
drivers/staging/iio/meter/ade7758_core.c | 2 +-
drivers/staging/iio/meter/ade7758_ring.c | 2 +-
drivers/staging/iio/ring_generic.h | 64 +----------
drivers/staging/iio/sysfs.h | 36 ++++---
33 files changed, 360 insertions(+), 347 deletions(-)
--
1.7.3.4
^ permalink raw reply [flat|nested] 8+ messages in thread
* [PATCH 1/3] staging:iio: remove broken support for multiple event interfaces.
2011-07-25 13:35 [PATCH 0/3] blue part 7: IIO Allow for more channels Jonathan Cameron
@ 2011-07-25 13:35 ` Jonathan Cameron
2011-07-26 9:04 ` Hennerich, Michael
2011-07-29 17:17 ` Jonathan Cameron
2011-07-25 13:35 ` [PATCH 2/3] staging:iio: Switch the channel masks to bitmaps so as to allow for more channels Jonathan Cameron
2011-07-25 13:35 ` [PATCH 3/3] staging:iio:events - new 64 bit code structure and push out drivers Jonathan Cameron
2 siblings, 2 replies; 8+ messages in thread
From: Jonathan Cameron @ 2011-07-25 13:35 UTC (permalink / raw)
To: linux-iio; +Cc: Jonathan Cameron
We don't have a use case for these. Two drivers appeared to use them
but both report all events on the first.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
---
drivers/staging/iio/accel/lis3l02dq_core.c | 13 +--
drivers/staging/iio/accel/sca3000_core.c | 9 +-
drivers/staging/iio/adc/ad7150.c | 21 +++--
drivers/staging/iio/adc/ad7291.c | 13 +--
drivers/staging/iio/adc/ad7745.c | 5 +-
drivers/staging/iio/adc/ad7816.c | 5 +-
drivers/staging/iio/adc/ad799x_core.c | 4 +-
drivers/staging/iio/adc/adt7310.c | 7 +-
drivers/staging/iio/adc/adt7410.c | 7 +-
drivers/staging/iio/adc/adt75.c | 3 +-
drivers/staging/iio/adc/max1363_core.c | 4 +-
drivers/staging/iio/addac/adt7316.c | 18 ++--
drivers/staging/iio/dac/ad5504.c | 4 +-
drivers/staging/iio/iio.h | 11 +--
drivers/staging/iio/industrialio-core.c | 146 +++++++++++++--------------
drivers/staging/iio/light/tsl2563.c | 3 +-
16 files changed, 123 insertions(+), 150 deletions(-)
diff --git a/drivers/staging/iio/accel/lis3l02dq_core.c b/drivers/staging/iio/accel/lis3l02dq_core.c
index 062632b..83c12b0 100644
--- a/drivers/staging/iio/accel/lis3l02dq_core.c
+++ b/drivers/staging/iio/accel/lis3l02dq_core.c
@@ -451,7 +451,7 @@ static irqreturn_t lis3l02dq_event_handler(int irq, void *private)
&t);
if (t & LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_Z_HIGH)
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_MOD_EVENT_CODE(IIO_ACCEL,
0,
IIO_MOD_Z,
@@ -460,7 +460,7 @@ static irqreturn_t lis3l02dq_event_handler(int irq, void *private)
timestamp);
if (t & LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_Z_LOW)
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_MOD_EVENT_CODE(IIO_ACCEL,
0,
IIO_MOD_Z,
@@ -469,7 +469,7 @@ static irqreturn_t lis3l02dq_event_handler(int irq, void *private)
timestamp);
if (t & LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_Y_HIGH)
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_MOD_EVENT_CODE(IIO_ACCEL,
0,
IIO_MOD_Y,
@@ -478,7 +478,7 @@ static irqreturn_t lis3l02dq_event_handler(int irq, void *private)
timestamp);
if (t & LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_Y_LOW)
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_MOD_EVENT_CODE(IIO_ACCEL,
0,
IIO_MOD_Y,
@@ -487,7 +487,7 @@ static irqreturn_t lis3l02dq_event_handler(int irq, void *private)
timestamp);
if (t & LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_X_HIGH)
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_MOD_EVENT_CODE(IIO_ACCEL,
0,
IIO_MOD_X,
@@ -496,7 +496,7 @@ static irqreturn_t lis3l02dq_event_handler(int irq, void *private)
timestamp);
if (t & LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_X_LOW)
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_MOD_EVENT_CODE(IIO_ACCEL,
0,
IIO_MOD_X,
@@ -650,7 +650,6 @@ static const struct attribute_group lis3l02dq_attribute_group = {
};
static const struct iio_info lis3l02dq_info = {
- .num_interrupt_lines = 1,
.read_raw = &lis3l02dq_read_raw,
.write_raw = &lis3l02dq_write_raw,
.read_event_value = &lis3l02dq_read_thresh,
diff --git a/drivers/staging/iio/accel/sca3000_core.c b/drivers/staging/iio/accel/sca3000_core.c
index 9d1e699..02ff6ba 100644
--- a/drivers/staging/iio/accel/sca3000_core.c
+++ b/drivers/staging/iio/accel/sca3000_core.c
@@ -814,7 +814,7 @@ static irqreturn_t sca3000_event_handler(int irq, void *private)
sca3000_ring_int_process(val, indio_dev->ring);
if (val & SCA3000_INT_STATUS_FREE_FALL)
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_MOD_EVENT_CODE(IIO_ACCEL,
0,
IIO_MOD_X_AND_Y_AND_Z,
@@ -823,7 +823,7 @@ static irqreturn_t sca3000_event_handler(int irq, void *private)
last_timestamp);
if (val & SCA3000_INT_STATUS_Y_TRIGGER)
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_MOD_EVENT_CODE(IIO_ACCEL,
0,
IIO_MOD_Y,
@@ -832,7 +832,7 @@ static irqreturn_t sca3000_event_handler(int irq, void *private)
last_timestamp);
if (val & SCA3000_INT_STATUS_X_TRIGGER)
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_MOD_EVENT_CODE(IIO_ACCEL,
0,
IIO_MOD_X,
@@ -841,7 +841,7 @@ static irqreturn_t sca3000_event_handler(int irq, void *private)
last_timestamp);
if (val & SCA3000_INT_STATUS_Z_TRIGGER)
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_MOD_EVENT_CODE(IIO_ACCEL,
0,
IIO_MOD_Z,
@@ -1102,7 +1102,6 @@ error_ret:
static const struct iio_info sca3000_info = {
.attrs = &sca3000_attribute_group,
.read_raw = &sca3000_read_raw,
- .num_interrupt_lines = 1,
.event_attrs = &sca3000_event_attribute_group,
.read_event_value = &sca3000_read_thresh,
.write_event_value = &sca3000_write_thresh,
diff --git a/drivers/staging/iio/adc/ad7150.c b/drivers/staging/iio/adc/ad7150.c
index 672493e..240c208 100644
--- a/drivers/staging/iio/adc/ad7150.c
+++ b/drivers/staging/iio/adc/ad7150.c
@@ -650,30 +650,34 @@ static irqreturn_t ad7150_event_handler(int irq, void *private)
ad7150_i2c_read(chip, AD7150_STATUS, &int_status, 1);
- if ((int_status & AD7150_STATUS_OUT1) && !(chip->old_state & AD7150_STATUS_OUT1))
- iio_push_event(indio_dev, 0,
+ if ((int_status & AD7150_STATUS_OUT1) &&
+ !(chip->old_state & AD7150_STATUS_OUT1))
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_IN,
0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_RISING),
timestamp);
- else if ((!(int_status & AD7150_STATUS_OUT1)) && (chip->old_state & AD7150_STATUS_OUT1))
- iio_push_event(indio_dev, 0,
+ else if ((!(int_status & AD7150_STATUS_OUT1)) &&
+ (chip->old_state & AD7150_STATUS_OUT1))
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_IN,
0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_FALLING),
timestamp);
- if ((int_status & AD7150_STATUS_OUT2) && !(chip->old_state & AD7150_STATUS_OUT2))
- iio_push_event(indio_dev, 0,
+ if ((int_status & AD7150_STATUS_OUT2) &&
+ !(chip->old_state & AD7150_STATUS_OUT2))
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_IN,
1,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_RISING),
timestamp);
- else if ((!(int_status & AD7150_STATUS_OUT2)) && (chip->old_state & AD7150_STATUS_OUT2))
- iio_push_event(indio_dev, 0,
+ else if ((!(int_status & AD7150_STATUS_OUT2)) &&
+ (chip->old_state & AD7150_STATUS_OUT2))
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_IN,
1,
IIO_EV_TYPE_THRESH,
@@ -702,7 +706,6 @@ static struct attribute_group ad7150_event_attribute_group = {
static const struct iio_info ad7150_info = {
.attrs = &ad7150_attribute_group,
- .num_interrupt_lines = 1,
.event_attrs = &ad7150_event_attribute_group,
.driver_module = THIS_MODULE,
};
diff --git a/drivers/staging/iio/adc/ad7291.c b/drivers/staging/iio/adc/ad7291.c
index 96cbb17..3991633 100644
--- a/drivers/staging/iio/adc/ad7291.c
+++ b/drivers/staging/iio/adc/ad7291.c
@@ -478,28 +478,28 @@ static irqreturn_t ad7291_event_handler(int irq, void *private)
ad7291_i2c_write(chip, AD7291_COMMAND, command);
if (t_status & (1 << 0))
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_TEMP,
0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_FALLING),
timestamp);
if (t_status & (1 << 1))
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_TEMP,
0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_RISING),
timestamp);
if (t_status & (1 << 2))
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_TEMP,
0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_FALLING),
timestamp);
if (t_status & (1 << 3))
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_TEMP,
0,
IIO_EV_TYPE_THRESH,
@@ -508,14 +508,14 @@ static irqreturn_t ad7291_event_handler(int irq, void *private)
for (i = 0; i < AD7291_VOLTAGE_LIMIT_COUNT*2; i += 2) {
if (v_status & (1 << i))
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_IN,
i/2,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_FALLING),
timestamp);
if (v_status & (1 << (i + 1)))
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_IN,
i/2,
IIO_EV_TYPE_THRESH,
@@ -779,7 +779,6 @@ static struct attribute_group ad7291_event_attribute_group = {
static const struct iio_info ad7291_info = {
.attrs = &ad7291_attribute_group,
- .num_interrupt_lines = 1,
.event_attrs = &ad7291_event_attribute_group,
};
diff --git a/drivers/staging/iio/adc/ad7745.c b/drivers/staging/iio/adc/ad7745.c
index d6e18e1..4a504ce 100644
--- a/drivers/staging/iio/adc/ad7745.c
+++ b/drivers/staging/iio/adc/ad7745.c
@@ -539,12 +539,12 @@ static irqreturn_t ad774x_event_handler(int irq, void *private)
ad774x_i2c_read(chip, AD774X_STATUS, &int_status, 1);
if (int_status & AD774X_STATUS_RDYCAP)
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_EVENT_CODE_CAP_RDY,
iio_get_time_ns());
if (int_status & AD774X_STATUS_RDYVT)
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_EVENT_CODE_VT_RDY,
iio_get_time_ns());
@@ -568,7 +568,6 @@ static struct attribute_group ad774x_event_attribute_group = {
static const struct iio_info ad774x_info = {
.attrs = &ad774x_event_attribute_group,
.event_attrs = &ad774x_event_attribute_group,
- .num_interrupt_lines = 1,
.driver_module = THIS_MODULE,
};
/*
diff --git a/drivers/staging/iio/adc/ad7816.c b/drivers/staging/iio/adc/ad7816.c
index 91a61fc..fb861fb 100644
--- a/drivers/staging/iio/adc/ad7816.c
+++ b/drivers/staging/iio/adc/ad7816.c
@@ -253,9 +253,7 @@ static const struct attribute_group ad7816_attribute_group = {
static irqreturn_t ad7816_event_handler(int irq, void *private)
{
- iio_push_event(private, 0,
- IIO_EVENT_CODE_AD7816_OTI,
- iio_get_time_ns());
+ iio_push_event(private, IIO_EVENT_CODE_AD7816_OTI, iio_get_time_ns());
return IRQ_HANDLED;
}
@@ -333,7 +331,6 @@ static struct attribute_group ad7816_event_attribute_group = {
static const struct iio_info ad7816_info = {
.attrs = &ad7816_attribute_group,
- .num_interrupt_lines = 1,
.event_attrs = &ad7816_event_attribute_group,
.driver_module = THIS_MODULE,
};
diff --git a/drivers/staging/iio/adc/ad799x_core.c b/drivers/staging/iio/adc/ad799x_core.c
index 33d7fb1..11d0add 100644
--- a/drivers/staging/iio/adc/ad799x_core.c
+++ b/drivers/staging/iio/adc/ad799x_core.c
@@ -333,7 +333,7 @@ static irqreturn_t ad799x_event_handler(int irq, void *private)
for (i = 0; i < 8; i++) {
if (status & (1 << i))
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
i & 0x1 ?
IIO_UNMOD_EVENT_CODE(IIO_IN,
(i >> 1),
@@ -473,14 +473,12 @@ static const struct iio_info ad7991_info = {
static const struct iio_info ad7992_info = {
.read_raw = &ad799x_read_raw,
- .num_interrupt_lines = 1,
.event_attrs = &ad7992_event_attrs_group,
.driver_module = THIS_MODULE,
};
static const struct iio_info ad7993_4_7_8_info = {
.read_raw = &ad799x_read_raw,
- .num_interrupt_lines = 1,
.event_attrs = &ad7993_4_7_8_event_attrs_group,
.driver_module = THIS_MODULE,
};
diff --git a/drivers/staging/iio/adc/adt7310.c b/drivers/staging/iio/adc/adt7310.c
index 2ed5e84..8f5c3fc 100644
--- a/drivers/staging/iio/adc/adt7310.c
+++ b/drivers/staging/iio/adc/adt7310.c
@@ -399,19 +399,19 @@ static irqreturn_t adt7310_event_handler(int irq, void *private)
return ret;
if (status & ADT7310_STAT_T_HIGH)
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_RISING),
timestamp);
if (status & ADT7310_STAT_T_LOW)
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_FALLING),
timestamp);
if (status & ADT7310_STAT_T_CRIT)
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_RISING),
@@ -749,7 +749,6 @@ static struct attribute_group adt7310_event_attribute_group[ADT7310_IRQS] = {
static const struct iio_info adt7310_info = {
.attrs = &adt7310_attribute_group,
- .num_interrupt_lines = ADT7310_IRQS,
.event_attrs = adt7310_event_attribute_group,
.driver_module = THIS_MODULE,
};
diff --git a/drivers/staging/iio/adc/adt7410.c b/drivers/staging/iio/adc/adt7410.c
index 0387c7c..c7b1ceb 100644
--- a/drivers/staging/iio/adc/adt7410.c
+++ b/drivers/staging/iio/adc/adt7410.c
@@ -365,19 +365,19 @@ static irqreturn_t adt7410_event_handler(int irq, void *private)
return IRQ_HANDLED;
if (status & ADT7410_STAT_T_HIGH)
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_RISING),
timestamp);
if (status & ADT7410_STAT_T_LOW)
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_FALLING),
timestamp);
if (status & ADT7410_STAT_T_CRIT)
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_RISING),
@@ -716,7 +716,6 @@ static struct attribute_group adt7410_event_attribute_group[ADT7410_IRQS] = {
static const struct iio_info adt7410_info = {
.attrs = &adt7410_attribute_group,
- .num_interrupt_lines = ADT7410_IRQS,
.event_attrs = adt7410_event_attribute_group,
.driver_module = THIS_MODULE,
};
diff --git a/drivers/staging/iio/adc/adt75.c b/drivers/staging/iio/adc/adt75.c
index ed42945..a306dbd 100644
--- a/drivers/staging/iio/adc/adt75.c
+++ b/drivers/staging/iio/adc/adt75.c
@@ -264,7 +264,7 @@ static const struct attribute_group adt75_attribute_group = {
static irqreturn_t adt75_event_handler(int irq, void *private)
{
- iio_push_event(private, 0,
+ iio_push_event(private,
IIO_EVENT_CODE_ADT75_OTI,
iio_get_time_ns());
@@ -534,7 +534,6 @@ static struct attribute_group adt75_event_attribute_group = {
static const struct iio_info adt75_info = {
.attrs = &adt75_attribute_group,
- .num_interrupt_lines = 1,
.event_attrs = &adt75_event_attribute_group,
.driver_module = THIS_MODULE,
};
diff --git a/drivers/staging/iio/adc/max1363_core.c b/drivers/staging/iio/adc/max1363_core.c
index d4a200a..ad2631d 100644
--- a/drivers/staging/iio/adc/max1363_core.c
+++ b/drivers/staging/iio/adc/max1363_core.c
@@ -614,8 +614,7 @@ static irqreturn_t max1363_event_handler(int irq, void *private)
i2c_master_recv(st->client, &rx, 1);
mask = rx;
for_each_set_bit(loc, &mask, 8)
- iio_push_event(indio_dev, 0, max1363_event_codes[loc],
- timestamp);
+ iio_push_event(indio_dev, max1363_event_codes[loc], timestamp);
i2c_master_send(st->client, tx, 2);
return IRQ_HANDLED;
@@ -844,7 +843,6 @@ static const struct iio_info max1363_info = {
.write_event_config = &max1363_write_event_config,
.read_raw = &max1363_read_raw,
.driver_module = THIS_MODULE,
- .num_interrupt_lines = 1,
.event_attrs = &max1363_event_attribute_group,
};
diff --git a/drivers/staging/iio/addac/adt7316.c b/drivers/staging/iio/addac/adt7316.c
index ea6e994..bc7a196 100644
--- a/drivers/staging/iio/addac/adt7316.c
+++ b/drivers/staging/iio/addac/adt7316.c
@@ -1776,43 +1776,43 @@ static irqreturn_t adt7316_event_handler(int irq, void *private)
time = iio_get_time_ns();
if (stat1 & (1 << 0))
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_RISING),
time);
if (stat1 & (1 << 1))
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_FALLING),
time);
if (stat1 & (1 << 2))
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_TEMP, 1,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_RISING),
time);
if (stat1 & (1 << 3))
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_TEMP, 1,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_FALLING),
time);
if (stat1 & (1 << 5))
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_IN, 1,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_EITHER),
time);
if (stat1 & (1 << 6))
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_IN, 2,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_EITHER),
time);
if (stat1 & (1 << 7))
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_IN, 3,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_EITHER),
@@ -1821,7 +1821,7 @@ static irqreturn_t adt7316_event_handler(int irq, void *private)
ret = chip->bus.read(chip->bus.client, ADT7316_INT_STAT2, &stat2);
if (!ret) {
if (stat2 & ADT7316_INT_MASK2_VDD)
- iio_push_event(indio_dev, 0,
+ iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_IN,
0,
IIO_EV_TYPE_THRESH,
@@ -2109,14 +2109,12 @@ EXPORT_SYMBOL(adt7316_enable);
static const struct iio_info adt7316_info = {
.attrs = &adt7316_attribute_group,
- .num_interrupt_lines = 1,
.event_attrs = &adt7316_event_attribute_group,
.driver_module = THIS_MODULE,
};
static const struct iio_info adt7516_info = {
.attrs = &adt7516_attribute_group,
- .num_interrupt_lines = 1,
.event_attrs = &adt7516_event_attribute_group,
.driver_module = THIS_MODULE,
};
diff --git a/drivers/staging/iio/dac/ad5504.c b/drivers/staging/iio/dac/ad5504.c
index c706ea4..54c8198 100644
--- a/drivers/staging/iio/dac/ad5504.c
+++ b/drivers/staging/iio/dac/ad5504.c
@@ -251,7 +251,7 @@ static struct attribute_group ad5504_ev_attribute_group = {
static irqreturn_t ad5504_event_handler(int irq, void *private)
{
- iio_push_event(private, 0,
+ iio_push_event(private,
IIO_UNMOD_EVENT_CODE(IIO_TEMP,
0,
IIO_EV_TYPE_THRESH,
@@ -263,14 +263,12 @@ static irqreturn_t ad5504_event_handler(int irq, void *private)
static const struct iio_info ad5504_info = {
.attrs = &ad5504_attribute_group,
- .num_interrupt_lines = 1,
.event_attrs = &ad5504_ev_attribute_group,
.driver_module = THIS_MODULE,
};
static const struct iio_info ad5501_info = {
.attrs = &ad5501_attribute_group,
- .num_interrupt_lines = 1,
.event_attrs = &ad5504_ev_attribute_group,
.driver_module = THIS_MODULE,
};
diff --git a/drivers/staging/iio/iio.h b/drivers/staging/iio/iio.h
index 4311a36..480b4d0 100644
--- a/drivers/staging/iio/iio.h
+++ b/drivers/staging/iio/iio.h
@@ -206,7 +206,6 @@ struct iio_dev;
* struct iio_info - constant information about device
* @driver_module: module structure used to ensure correct
* ownership of chrdevs etc
- * @num_interrupt_lines:number of physical interrupt lines from device
* @event_attrs: event control attributes
* @attrs: general purpose device attributes
* @read_raw: function to request a value from the device.
@@ -230,7 +229,6 @@ struct iio_dev;
**/
struct iio_info {
struct module *driver_module;
- int num_interrupt_lines;
struct attribute_group *event_attrs;
const struct attribute_group *attrs;
@@ -275,7 +273,7 @@ struct iio_info {
* @currentmode: [DRIVER] current operating mode
* @dev: [DRIVER] device structure, should be assigned a parent
* and owner
- * @event_interfaces: [INTERN] event chrdevs associated with interrupt lines
+ * @event_interface: [INTERN] event chrdevs associated with interrupt lines
* @ring: [DRIVER] any ring buffer present
* @mlock: [INTERN] lock used to prevent simultaneous device state
* changes
@@ -295,7 +293,7 @@ struct iio_dev {
int currentmode;
struct device dev;
- struct iio_event_interface *event_interfaces;
+ struct iio_event_interface *event_interface;
struct iio_ring_buffer *ring;
struct mutex mlock;
@@ -332,10 +330,7 @@ void iio_device_unregister(struct iio_dev *dev_info);
* @ev_code: What event
* @timestamp: When the event occurred
**/
-int iio_push_event(struct iio_dev *dev_info,
- int ev_line,
- int ev_code,
- s64 timestamp);
+int iio_push_event(struct iio_dev *dev_info, int ev_code, s64 timestamp);
extern struct bus_type iio_bus_type;
diff --git a/drivers/staging/iio/industrialio-core.c b/drivers/staging/iio/industrialio-core.c
index 06ffc48..77b5b2d 100644
--- a/drivers/staging/iio/industrialio-core.c
+++ b/drivers/staging/iio/industrialio-core.c
@@ -150,13 +150,9 @@ struct iio_event_interface {
unsigned long flags;
};
-int iio_push_event(struct iio_dev *dev_info,
- int ev_line,
- int ev_code,
- s64 timestamp)
+int iio_push_event(struct iio_dev *dev_info, int ev_code, s64 timestamp)
{
- struct iio_event_interface *ev_int
- = &dev_info->event_interfaces[ev_line];
+ struct iio_event_interface *ev_int = dev_info->event_interface;
struct iio_detected_event_list *ev;
int ret = 0;
@@ -295,19 +291,19 @@ static void iio_device_free_chrdev_minor(int val)
static int iio_event_getfd(struct iio_dev *indio_dev)
{
- if (indio_dev->event_interfaces == NULL)
+ if (indio_dev->event_interface == NULL)
return -ENODEV;
- mutex_lock(&indio_dev->event_interfaces->event_list_lock);
+ mutex_lock(&indio_dev->event_interface->event_list_lock);
if (test_and_set_bit(IIO_BUSY_BIT_POS,
- &indio_dev->event_interfaces->flags)) {
- mutex_unlock(&indio_dev->event_interfaces->event_list_lock);
+ &indio_dev->event_interface->flags)) {
+ mutex_unlock(&indio_dev->event_interface->event_list_lock);
return -EBUSY;
}
- mutex_unlock(&indio_dev->event_interfaces->event_list_lock);
+ mutex_unlock(&indio_dev->event_interface->event_list_lock);
return anon_inode_getfd("iio:event",
&iio_event_chrdev_fileops,
- &indio_dev->event_interfaces[0], O_RDONLY);
+ indio_dev->event_interface, O_RDONLY);
}
static void iio_setup_ev_int(struct iio_event_interface *ev_int)
@@ -907,7 +903,7 @@ static int iio_device_add_event_sysfs(struct iio_dev *dev_info,
how far*/
0,
&dev_info->dev,
- &dev_info->event_interfaces[0].
+ &dev_info->event_interface->
dev_attr_list);
kfree(postfix);
if (ret)
@@ -926,8 +922,8 @@ static int iio_device_add_event_sysfs(struct iio_dev *dev_info,
mask,
0,
&dev_info->dev,
- &dev_info->event_interfaces[0]
- .dev_attr_list);
+ &dev_info->event_interface->
+ dev_attr_list);
kfree(postfix);
if (ret)
goto error_ret;
@@ -938,12 +934,11 @@ error_ret:
return ret;
}
-static inline void __iio_remove_event_config_attrs(struct iio_dev *dev_info,
- int i)
+static inline void __iio_remove_event_config_attrs(struct iio_dev *dev_info)
{
struct iio_dev_attr *p, *n;
list_for_each_entry_safe(p, n,
- &dev_info->event_interfaces[i].
+ &dev_info->event_interface->
dev_attr_list, l) {
sysfs_remove_file_from_group(&dev_info->dev.kobj,
&p->dev_attr.attr,
@@ -953,25 +948,23 @@ static inline void __iio_remove_event_config_attrs(struct iio_dev *dev_info,
}
}
-static inline int __iio_add_event_config_attrs(struct iio_dev *dev_info, int i)
+static inline int __iio_add_event_config_attrs(struct iio_dev *dev_info)
{
int j;
int ret;
- INIT_LIST_HEAD(&dev_info->event_interfaces[i].dev_attr_list);
+ INIT_LIST_HEAD(&dev_info->event_interface->dev_attr_list);
/* Dynically created from the channels array */
- if (dev_info->channels) {
- for (j = 0; j < dev_info->num_channels; j++) {
- ret = iio_device_add_event_sysfs(dev_info,
- &dev_info
- ->channels[j]);
- if (ret)
- goto error_clear_attrs;
- }
+ for (j = 0; j < dev_info->num_channels; j++) {
+
+ ret = iio_device_add_event_sysfs(dev_info,
+ &dev_info->channels[j]);
+ if (ret)
+ goto error_clear_attrs;
}
return 0;
error_clear_attrs:
- __iio_remove_event_config_attrs(dev_info, i);
+ __iio_remove_event_config_attrs(dev_info);
return ret;
}
@@ -985,42 +978,49 @@ static struct attribute_group iio_events_dummy_group = {
.attrs = iio_events_dummy_attrs
};
+static bool iio_check_for_dynamic_events(struct iio_dev *dev_info)
+{
+ int j;
+ for (j = 0; j < dev_info->num_channels; j++)
+ if (dev_info->channels[j].event_mask != 0)
+ return true;
+ return false;
+}
+
static int iio_device_register_eventset(struct iio_dev *dev_info)
{
- int ret = 0, i, j;
+ int ret = 0;
- if (dev_info->info->num_interrupt_lines == 0)
+ if (!(dev_info->info->event_attrs ||
+ iio_check_for_dynamic_events(dev_info)))
return 0;
- dev_info->event_interfaces =
- kzalloc(sizeof(struct iio_event_interface)
- *dev_info->info->num_interrupt_lines,
- GFP_KERNEL);
- if (dev_info->event_interfaces == NULL) {
+ dev_info->event_interface =
+ kzalloc(sizeof(struct iio_event_interface), GFP_KERNEL);
+ if (dev_info->event_interface == NULL) {
ret = -ENOMEM;
goto error_ret;
}
- for (i = 0; i < dev_info->info->num_interrupt_lines; i++) {
- iio_setup_ev_int(&dev_info->event_interfaces[i]);
- if (dev_info->info->event_attrs != NULL)
- ret = sysfs_create_group(&dev_info->dev.kobj,
- &dev_info->info
- ->event_attrs[i]);
- else
- ret = sysfs_create_group(&dev_info->dev.kobj,
- &iio_events_dummy_group);
- if (ret) {
- dev_err(&dev_info->dev,
- "Failed to register sysfs for event attrs");
- goto error_free_setup_event_lines;
- }
- ret = __iio_add_event_config_attrs(dev_info, i);
+ iio_setup_ev_int(dev_info->event_interface);
+ if (dev_info->info->event_attrs != NULL)
+ ret = sysfs_create_group(&dev_info->dev.kobj,
+ dev_info->info->event_attrs);
+ else
+ ret = sysfs_create_group(&dev_info->dev.kobj,
+ &iio_events_dummy_group);
+ if (ret) {
+ dev_err(&dev_info->dev,
+ "Failed to register sysfs for event attrs");
+ goto error_free_setup_event_lines;
+ }
+ if (dev_info->channels) {
+ ret = __iio_add_event_config_attrs(dev_info);
if (ret) {
if (dev_info->info->event_attrs != NULL)
sysfs_remove_group(&dev_info->dev.kobj,
- &dev_info->info
- ->event_attrs[i]);
+ dev_info->info
+ ->event_attrs);
else
sysfs_remove_group(&dev_info->dev.kobj,
&iio_events_dummy_group);
@@ -1031,16 +1031,14 @@ static int iio_device_register_eventset(struct iio_dev *dev_info)
return 0;
error_free_setup_event_lines:
- for (j = 0; j < i; j++) {
- __iio_remove_event_config_attrs(dev_info, j);
- if (dev_info->info->event_attrs != NULL) {
- sysfs_remove_group(&dev_info->dev.kobj,
- &dev_info->info->event_attrs[j]);
- sysfs_remove_group(&dev_info->dev.kobj,
- &iio_events_dummy_group);
- }
- }
- kfree(dev_info->event_interfaces);
+ __iio_remove_event_config_attrs(dev_info);
+ if (dev_info->info->event_attrs != NULL)
+ sysfs_remove_group(&dev_info->dev.kobj,
+ dev_info->info->event_attrs);
+ else
+ sysfs_remove_group(&dev_info->dev.kobj,
+ &iio_events_dummy_group);
+ kfree(dev_info->event_interface);
error_ret:
return ret;
@@ -1048,20 +1046,16 @@ error_ret:
static void iio_device_unregister_eventset(struct iio_dev *dev_info)
{
- int i;
-
- if (dev_info->info->num_interrupt_lines == 0)
+ if (dev_info->event_interface == NULL)
return;
- for (i = 0; i < dev_info->info->num_interrupt_lines; i++) {
- __iio_remove_event_config_attrs(dev_info, i);
- if (dev_info->info->event_attrs != NULL)
- sysfs_remove_group(&dev_info->dev.kobj,
- &dev_info->info->event_attrs[i]);
- else
- sysfs_remove_group(&dev_info->dev.kobj,
- &iio_events_dummy_group);
- }
- kfree(dev_info->event_interfaces);
+ __iio_remove_event_config_attrs(dev_info);
+ if (dev_info->info->event_attrs != NULL)
+ sysfs_remove_group(&dev_info->dev.kobj,
+ dev_info->info->event_attrs);
+ else
+ sysfs_remove_group(&dev_info->dev.kobj,
+ &iio_events_dummy_group);
+ kfree(dev_info->event_interface);
}
static void iio_dev_release(struct device *device)
diff --git a/drivers/staging/iio/light/tsl2563.c b/drivers/staging/iio/light/tsl2563.c
index 7c4cc9e..10a658d 100644
--- a/drivers/staging/iio/light/tsl2563.c
+++ b/drivers/staging/iio/light/tsl2563.c
@@ -595,7 +595,7 @@ static irqreturn_t tsl2563_event_handler(int irq, void *private)
struct iio_dev *dev_info = private;
struct tsl2563_chip *chip = iio_priv(dev_info);
- iio_push_event(dev_info, 0,
+ iio_push_event(dev_info,
IIO_UNMOD_EVENT_CODE(IIO_LIGHT,
0,
IIO_EV_TYPE_THRESH,
@@ -680,7 +680,6 @@ static const struct iio_info tsl2563_info_no_irq = {
static const struct iio_info tsl2563_info = {
.driver_module = THIS_MODULE,
- .num_interrupt_lines = 1,
.read_raw = &tsl2563_read_raw,
.write_raw = &tsl2563_write_raw,
.read_event_value = &tsl2563_read_thresh,
--
1.7.3.4
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH 2/3] staging:iio: Switch the channel masks to bitmaps so as to allow for more channels.
2011-07-25 13:35 [PATCH 0/3] blue part 7: IIO Allow for more channels Jonathan Cameron
2011-07-25 13:35 ` [PATCH 1/3] staging:iio: remove broken support for multiple event interfaces Jonathan Cameron
@ 2011-07-25 13:35 ` Jonathan Cameron
2011-08-18 14:15 ` Jonathan Cameron
2011-07-25 13:35 ` [PATCH 3/3] staging:iio:events - new 64 bit code structure and push out drivers Jonathan Cameron
2 siblings, 1 reply; 8+ messages in thread
From: Jonathan Cameron @ 2011-07-25 13:35 UTC (permalink / raw)
To: linux-iio; +Cc: Jonathan Cameron
This is as light as possible on changes to current drivers.
Some drivers make assumptions that their masks fit in a single
long. Given they were previously working this is clearly valid if
not tidy.
The max1363 is an example where there should be no such assumptions.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
---
drivers/staging/iio/accel/lis3l02dq_ring.c | 5 +-
drivers/staging/iio/adc/ad7298_ring.c | 4 +-
drivers/staging/iio/adc/ad7793.c | 18 ++++--
drivers/staging/iio/adc/ad7887.h | 4 +-
drivers/staging/iio/adc/ad7887_ring.c | 10 ++-
drivers/staging/iio/adc/ad799x.h | 4 +-
drivers/staging/iio/adc/ad799x_core.c | 2 +-
drivers/staging/iio/adc/ad799x_ring.c | 18 ++----
drivers/staging/iio/adc/max1363.h | 8 ++-
drivers/staging/iio/adc/max1363_core.c | 37 ++++++-----
drivers/staging/iio/adc/max1363_ring.c | 22 ++++----
drivers/staging/iio/iio.h | 3 +-
drivers/staging/iio/imu/adis16400_ring.c | 9 ++-
drivers/staging/iio/industrialio-ring.c | 91 +++++++++++++++++++++++++++-
drivers/staging/iio/meter/ade7758.h | 2 +-
drivers/staging/iio/meter/ade7758_core.c | 2 +-
drivers/staging/iio/meter/ade7758_ring.c | 2 +-
drivers/staging/iio/ring_generic.h | 64 ++------------------
18 files changed, 172 insertions(+), 133 deletions(-)
diff --git a/drivers/staging/iio/accel/lis3l02dq_ring.c b/drivers/staging/iio/accel/lis3l02dq_ring.c
index 5c6fe13..82891cb 100644
--- a/drivers/staging/iio/accel/lis3l02dq_ring.c
+++ b/drivers/staging/iio/accel/lis3l02dq_ring.c
@@ -61,8 +61,9 @@ ssize_t lis3l02dq_read_accel_from_ring(struct iio_ring_buffer *ring,
ret = ring->access->read_last(ring, (u8 *)data);
if (ret)
goto error_free_data;
- *val = data[bitmap_weight(&ring->scan_mask, index)];
+ *val = data[bitmap_weight(ring->scan_mask, index)];
error_free_data:
+
kfree(data);
return ret;
@@ -99,7 +100,7 @@ static int lis3l02dq_read_all(struct iio_dev *indio_dev, u8 *rx_array)
mutex_lock(&st->buf_lock);
for (i = 0; i < ARRAY_SIZE(read_all_tx_array)/4; i++)
- if (ring->scan_mask & (1 << i)) {
+ if (test_bit(i, ring->scan_mask)) {
/* lower byte */
xfers[j].tx_buf = st->tx + 2*j;
st->tx[2*j] = read_all_tx_array[i*4];
diff --git a/drivers/staging/iio/adc/ad7298_ring.c b/drivers/staging/iio/adc/ad7298_ring.c
index 741818c..246b2e7 100644
--- a/drivers/staging/iio/adc/ad7298_ring.c
+++ b/drivers/staging/iio/adc/ad7298_ring.c
@@ -24,7 +24,7 @@ int ad7298_scan_from_ring(struct iio_dev *dev_info, long ch)
int ret;
u16 *ring_data;
- if (!(ring->scan_mask & (1 << ch))) {
+ if (!(test_bit(ch, ring->scan_mask))) {
ret = -EBUSY;
goto error_ret;
}
@@ -79,7 +79,7 @@ static int ad7298_ring_preenable(struct iio_dev *indio_dev)
command = AD7298_WRITE | st->ext_ref;
for (i = 0, m = AD7298_CH(0); i < AD7298_MAX_CHAN; i++, m >>= 1)
- if (ring->scan_mask & (1 << i))
+ if (test_bit(i, ring->scan_mask))
command |= m;
st->tx_buf[0] = cpu_to_be16(command);
diff --git a/drivers/staging/iio/adc/ad7793.c b/drivers/staging/iio/adc/ad7793.c
index ed993e3..d1f4911 100644
--- a/drivers/staging/iio/adc/ad7793.c
+++ b/drivers/staging/iio/adc/ad7793.c
@@ -51,7 +51,8 @@ struct ad7793_state {
u16 mode;
u16 conf;
u32 scale_avail[8][2];
- u32 available_scan_masks[7];
+ /* Note this uses fact that 8 the mask always fits in a long */
+ unsigned long available_scan_masks[7];
/*
* DMA (thus cache coherency maintenance) requires the
* transfer buffers to live in their own cache lines.
@@ -321,7 +322,7 @@ static int ad7793_scan_from_ring(struct ad7793_state *st, unsigned ch, int *val)
s64 dat64[2];
u32 *dat32 = (u32 *)dat64;
- if (!(ring->scan_mask & (1 << ch)))
+ if (!(test_bit(ch, ring->scan_mask)))
return -EBUSY;
ret = ring->access->read_last(ring, (u8 *) &dat64);
@@ -343,7 +344,8 @@ static int ad7793_ring_preenable(struct iio_dev *indio_dev)
if (!ring->scan_count)
return -EINVAL;
- channel = __ffs(ring->scan_mask);
+ channel = find_first_bit(ring->scan_mask,
+ indio_dev->masklength);
d_size = ring->scan_count *
indio_dev->channels[0].scan_type.storagebits / 8;
@@ -875,10 +877,12 @@ static int __devinit ad7793_probe(struct spi_device *spi)
indio_dev->num_channels = 7;
indio_dev->info = &ad7793_info;
- for (i = 0; i < indio_dev->num_channels; i++)
- st->available_scan_masks[i] = (1 << i) | (1 <<
- indio_dev->channels[indio_dev->num_channels - 1].
- scan_index);
+ for (i = 0; i < indio_dev->num_channels; i++) {
+ set_bit(i, &st->available_scan_masks[i]);
+ set_bit(indio_dev->
+ channels[indio_dev->num_channels - 1].scan_index,
+ &st->available_scan_masks[i]);
+ }
init_waitqueue_head(&st->wq_data_avail);
diff --git a/drivers/staging/iio/adc/ad7887.h b/drivers/staging/iio/adc/ad7887.h
index 837046c..1b7a772 100644
--- a/drivers/staging/iio/adc/ad7887.h
+++ b/drivers/staging/iio/adc/ad7887.h
@@ -83,11 +83,11 @@ enum ad7887_supported_device_ids {
};
#ifdef CONFIG_IIO_RING_BUFFER
-int ad7887_scan_from_ring(struct ad7887_state *st, long mask);
+int ad7887_scan_from_ring(struct ad7887_state *st, int channum);
int ad7887_register_ring_funcs_and_init(struct iio_dev *indio_dev);
void ad7887_ring_cleanup(struct iio_dev *indio_dev);
#else /* CONFIG_IIO_RING_BUFFER */
-static inline int ad7887_scan_from_ring(struct ad7887_state *st, long mask)
+static inline int ad7887_scan_from_ring(struct ad7887_state *st, int channum)
{
return 0;
}
diff --git a/drivers/staging/iio/adc/ad7887_ring.c b/drivers/staging/iio/adc/ad7887_ring.c
index 6b3daf4..36e118c 100644
--- a/drivers/staging/iio/adc/ad7887_ring.c
+++ b/drivers/staging/iio/adc/ad7887_ring.c
@@ -19,13 +19,13 @@
#include "ad7887.h"
-int ad7887_scan_from_ring(struct ad7887_state *st, long mask)
+int ad7887_scan_from_ring(struct ad7887_state *st, int channum)
{
struct iio_ring_buffer *ring = iio_priv_to_dev(st)->ring;
int count = 0, ret;
u16 *ring_data;
- if (!(ring->scan_mask & mask)) {
+ if (!(test_bit(channum, ring->scan_mask))) {
ret = -EBUSY;
goto error_ret;
}
@@ -41,7 +41,8 @@ int ad7887_scan_from_ring(struct ad7887_state *st, long mask)
goto error_free_ring_data;
/* for single channel scan the result is stored with zero offset */
- if ((ring->scan_mask == ((1 << 1) | (1 << 0))) && (mask == (1 << 1)))
+ if ((test_bit(1, ring->scan_mask) || test_bit(0, ring->scan_mask)) &&
+ (channum == 1))
count = 1;
ret = be16_to_cpu(ring_data[count]);
@@ -78,7 +79,8 @@ static int ad7887_ring_preenable(struct iio_dev *indio_dev)
indio_dev->ring->access->set_bytes_per_datum(indio_dev->ring,
st->d_size);
- switch (ring->scan_mask) {
+ /* We know this is a single long so can 'cheat' */
+ switch (*ring->scan_mask) {
case (1 << 0):
st->ring_msg = &st->msg[AD7887_CH0];
break;
diff --git a/drivers/staging/iio/adc/ad799x.h b/drivers/staging/iio/adc/ad799x.h
index 0dc9b4c..98f06f6 100644
--- a/drivers/staging/iio/adc/ad799x.h
+++ b/drivers/staging/iio/adc/ad799x.h
@@ -124,11 +124,11 @@ struct ad799x_platform_data {
int ad7997_8_set_scan_mode(struct ad799x_state *st, unsigned mask);
#ifdef CONFIG_AD799X_RING_BUFFER
-int ad799x_single_channel_from_ring(struct ad799x_state *st, long mask);
+int ad799x_single_channel_from_ring(struct ad799x_state *st, int channum);
int ad799x_register_ring_funcs_and_init(struct iio_dev *indio_dev);
void ad799x_ring_cleanup(struct iio_dev *indio_dev);
#else /* CONFIG_AD799X_RING_BUFFER */
-int ad799x_single_channel_from_ring(struct ad799x_state *st, long mask)
+int ad799x_single_channel_from_ring(struct ad799x_state *st, int channum)
{
return -EINVAL;
}
diff --git a/drivers/staging/iio/adc/ad799x_core.c b/drivers/staging/iio/adc/ad799x_core.c
index 11d0add..b7461f0 100644
--- a/drivers/staging/iio/adc/ad799x_core.c
+++ b/drivers/staging/iio/adc/ad799x_core.c
@@ -150,7 +150,7 @@ static int ad799x_read_raw(struct iio_dev *dev_info,
mutex_lock(&dev_info->mlock);
if (iio_ring_enabled(dev_info))
ret = ad799x_single_channel_from_ring(st,
- 1 << chan->address);
+ chan->address);
else
ret = ad799x_scan_direct(st, chan->address);
mutex_unlock(&dev_info->mlock);
diff --git a/drivers/staging/iio/adc/ad799x_ring.c b/drivers/staging/iio/adc/ad799x_ring.c
index 8f1fc52..438e81d 100644
--- a/drivers/staging/iio/adc/ad799x_ring.c
+++ b/drivers/staging/iio/adc/ad799x_ring.c
@@ -23,13 +23,13 @@
#include "ad799x.h"
-int ad799x_single_channel_from_ring(struct ad799x_state *st, long mask)
+int ad799x_single_channel_from_ring(struct ad799x_state *st, int channum)
{
struct iio_ring_buffer *ring = iio_priv_to_dev(st)->ring;
int count = 0, ret;
u16 *ring_data;
- if (!(ring->scan_mask & mask)) {
+ if (!(test_bit(channum, ring->scan_mask))) {
ret = -EBUSY;
goto error_ret;
}
@@ -44,13 +44,7 @@ int ad799x_single_channel_from_ring(struct ad799x_state *st, long mask)
if (ret)
goto error_free_ring_data;
/* Need a count of channels prior to this one */
- mask >>= 1;
- while (mask) {
- if (mask & ring->scan_mask)
- count++;
- mask >>= 1;
- }
-
+ count = bitmap_weight(ring->scan_mask, channum);
ret = be16_to_cpu(ring_data[count]);
error_free_ring_data:
@@ -77,7 +71,7 @@ static int ad799x_ring_preenable(struct iio_dev *indio_dev)
*/
if (st->id == ad7997 || st->id == ad7998)
- ad7997_8_set_scan_mode(st, ring->scan_mask);
+ ad7997_8_set_scan_mode(st, *ring->scan_mask);
st->d_size = ring->scan_count * 2;
@@ -121,12 +115,12 @@ static irqreturn_t ad799x_trigger_handler(int irq, void *p)
case ad7991:
case ad7995:
case ad7999:
- cmd = st->config | (ring->scan_mask << AD799X_CHANNEL_SHIFT);
+ cmd = st->config | (*ring->scan_mask << AD799X_CHANNEL_SHIFT);
break;
case ad7992:
case ad7993:
case ad7994:
- cmd = (ring->scan_mask << AD799X_CHANNEL_SHIFT) |
+ cmd = (*ring->scan_mask << AD799X_CHANNEL_SHIFT) |
AD7998_CONV_RES_REG;
break;
case ad7997:
diff --git a/drivers/staging/iio/adc/max1363.h b/drivers/staging/iio/adc/max1363.h
index 360bfc5..cbcb08a 100644
--- a/drivers/staging/iio/adc/max1363.h
+++ b/drivers/staging/iio/adc/max1363.h
@@ -57,6 +57,7 @@
#define MAX1363_SCAN_MASK 0x60
#define MAX1363_SE_DE_MASK 0x01
+#define MAX1363_MAX_CHANNELS 25
/**
* struct max1363_mode - scan mode information
* @conf: The corresponding value of the configuration register
@@ -64,7 +65,7 @@
*/
struct max1363_mode {
int8_t conf;
- long modemask;
+ DECLARE_BITMAP(modemask, MAX1363_MAX_CHANNELS);
};
/* This must be maintained along side the max1363_mode_table in max1363_core */
@@ -145,13 +146,14 @@ struct max1363_state {
};
const struct max1363_mode
-*max1363_match_mode(u32 mask, const struct max1363_chip_info *ci);
+*max1363_match_mode(unsigned long *mask, const struct max1363_chip_info *ci);
int max1363_set_scan_mode(struct max1363_state *st);
#ifdef CONFIG_MAX1363_RING_BUFFER
-int max1363_single_channel_from_ring(long mask, struct max1363_state *st);
+int max1363_single_channel_from_ring(const long *mask,
+ struct max1363_state *st);
int max1363_register_ring_funcs_and_init(struct iio_dev *indio_dev);
void max1363_ring_cleanup(struct iio_dev *indio_dev);
diff --git a/drivers/staging/iio/adc/max1363_core.c b/drivers/staging/iio/adc/max1363_core.c
index ad2631d..d37d1ca 100644
--- a/drivers/staging/iio/adc/max1363_core.c
+++ b/drivers/staging/iio/adc/max1363_core.c
@@ -41,14 +41,14 @@
.conf = MAX1363_CHANNEL_SEL(_num) \
| MAX1363_CONFIG_SCAN_SINGLE_1 \
| MAX1363_CONFIG_SE, \
- .modemask = _mask, \
+ .modemask[0] = _mask, \
}
#define MAX1363_MODE_SCAN_TO_CHANNEL(_num, _mask) { \
.conf = MAX1363_CHANNEL_SEL(_num) \
| MAX1363_CONFIG_SCAN_TO_CS \
| MAX1363_CONFIG_SE, \
- .modemask = _mask, \
+ .modemask[0] = _mask, \
}
/* note not available for max1363 hence naming */
@@ -56,14 +56,14 @@
.conf = MAX1363_CHANNEL_SEL(_num) \
| MAX1236_SCAN_MID_TO_CHANNEL \
| MAX1363_CONFIG_SE, \
- .modemask = _mask \
+ .modemask[0] = _mask \
}
#define MAX1363_MODE_DIFF_SINGLE(_nump, _numm, _mask) { \
.conf = MAX1363_CHANNEL_SEL(_nump) \
| MAX1363_CONFIG_SCAN_SINGLE_1 \
| MAX1363_CONFIG_DE, \
- .modemask = _mask \
+ .modemask[0] = _mask \
}
/* Can't think how to automate naming so specify for now */
@@ -71,7 +71,7 @@
.conf = MAX1363_CHANNEL_SEL(_num) \
| MAX1363_CONFIG_SCAN_TO_CS \
| MAX1363_CONFIG_DE, \
- .modemask = _mask \
+ .modemask[0] = _mask \
}
/* note only available for max1363 hence naming */
@@ -79,7 +79,7 @@
.conf = MAX1363_CHANNEL_SEL(_num) \
| MAX1236_SCAN_MID_TO_CHANNEL \
| MAX1363_CONFIG_SE, \
- .modemask = _mask \
+ .modemask[0] = _mask \
}
static const struct max1363_mode max1363_mode_table[] = {
@@ -146,13 +146,15 @@ static const struct max1363_mode max1363_mode_table[] = {
};
const struct max1363_mode
-*max1363_match_mode(u32 mask, const struct max1363_chip_info *ci)
+*max1363_match_mode(unsigned long *mask, const struct max1363_chip_info *ci)
{
int i;
if (mask)
for (i = 0; i < ci->num_modes; i++)
- if (!((~max1363_mode_table[ci->mode_list[i]].modemask) &
- mask))
+ if (bitmap_subset(mask,
+ max1363_mode_table[ci->mode_list[i]].
+ modemask,
+ MAX1363_MAX_CHANNELS))
return &max1363_mode_table[ci->mode_list[i]];
return NULL;
}
@@ -186,7 +188,7 @@ static int max1363_read_single_chan(struct iio_dev *indio_dev,
int ret = 0;
s32 data;
char rxbuf[2];
- long mask;
+ const unsigned long *mask;
struct max1363_state *st = iio_priv(indio_dev);
struct i2c_client *client = st->client;
@@ -643,7 +645,7 @@ static int max1363_monitor_mode_update(struct max1363_state *st, int enabled)
int ret, i = 3, j;
unsigned long numelements;
int len;
- long modemask;
+ const long *modemask;
if (!enabled) {
/* transition to ring capture is not currently supported */
@@ -671,7 +673,7 @@ static int max1363_monitor_mode_update(struct max1363_state *st, int enabled)
st->configbyte |= max1363_mode_table[d1m0to3m2].conf;
modemask = max1363_mode_table[d1m0to3m2].modemask;
}
- numelements = hweight_long(modemask);
+ numelements = bitmap_weight(modemask, MAX1363_MAX_CHANNELS);
len = 3 * numelements + 3;
tx_buf = kmalloc(len, GFP_KERNEL);
if (!tx_buf) {
@@ -687,7 +689,7 @@ static int max1363_monitor_mode_update(struct max1363_state *st, int enabled)
* setup to match what we need.
*/
for (j = 0; j < 8; j++)
- if (modemask & (1 << j)) {
+ if (test_bit(j, modemask)) {
/* Establish the mode is in the scan */
if (st->mask_low & (1 << j)) {
tx_buf[i] = (st->thresh_low[j] >> 4) & 0xFF;
@@ -1280,7 +1282,7 @@ static int __devinit max1363_probe(struct i2c_client *client,
st->client = client;
indio_dev->available_scan_masks
- = kzalloc(sizeof(*indio_dev->available_scan_masks)*
+ = kzalloc(BITS_TO_LONGS(MAX1363_MAX_CHANNELS)*
(st->chip_info->num_modes + 1), GFP_KERNEL);
if (!indio_dev->available_scan_masks) {
ret = -ENOMEM;
@@ -1288,9 +1290,10 @@ static int __devinit max1363_probe(struct i2c_client *client,
}
for (i = 0; i < st->chip_info->num_modes; i++)
- indio_dev->available_scan_masks[i] =
- max1363_mode_table[st->chip_info->mode_list[i]]
- .modemask;
+ bitmap_copy(indio_dev->available_scan_masks +
+ BITS_TO_LONGS(MAX1363_MAX_CHANNELS)*i,
+ max1363_mode_table[st->chip_info->mode_list[i]]
+ .modemask, MAX1363_MAX_CHANNELS);
/* Estabilish that the iio_dev is a child of the i2c device */
indio_dev->dev.parent = &client->dev;
indio_dev->name = id->name;
diff --git a/drivers/staging/iio/adc/max1363_ring.c b/drivers/staging/iio/adc/max1363_ring.c
index be601e0..abe9e03 100644
--- a/drivers/staging/iio/adc/max1363_ring.c
+++ b/drivers/staging/iio/adc/max1363_ring.c
@@ -21,12 +21,14 @@
#include "max1363.h"
-int max1363_single_channel_from_ring(long mask, struct max1363_state *st)
+int max1363_single_channel_from_ring(const long *mask, struct max1363_state *st)
{
struct iio_ring_buffer *ring = iio_priv_to_dev(st)->ring;
- int count = 0, ret;
+ int count = 0, ret, index;
u8 *ring_data;
- if (!(st->current_mode->modemask & mask)) {
+ index = find_first_bit(mask, MAX1363_MAX_CHANNELS);
+
+ if (!(test_bit(index, st->current_mode->modemask))) {
ret = -EBUSY;
goto error_ret;
}
@@ -41,12 +43,8 @@ int max1363_single_channel_from_ring(long mask, struct max1363_state *st)
if (ret)
goto error_free_ring_data;
/* Need a count of channels prior to this one */
- mask >>= 1;
- while (mask) {
- if (mask & st->current_mode->modemask)
- count++;
- mask >>= 1;
- }
+
+ count = bitmap_weight(mask, index - 1);
if (st->chip_info->bits != 8)
ret = ((int)(ring_data[count*2 + 0] & 0x0F) << 8)
+ (int)(ring_data[count*2 + 1]);
@@ -85,7 +83,8 @@ static int max1363_ring_preenable(struct iio_dev *indio_dev)
max1363_set_scan_mode(st);
- numvals = hweight_long(st->current_mode->modemask);
+ numvals = bitmap_weight(st->current_mode->modemask,
+ indio_dev->masklength);
if (ring->access->set_bytes_per_datum) {
if (ring->scan_timestamp)
d_size += sizeof(s64);
@@ -110,7 +109,8 @@ static irqreturn_t max1363_trigger_handler(int irq, void *p)
__u8 *rxbuf;
int b_sent;
size_t d_size;
- unsigned long numvals = hweight_long(st->current_mode->modemask);
+ unsigned long numvals = bitmap_weight(st->current_mode->modemask,
+ MAX1363_MAX_CHANNELS);
/* Ensure the timestamp is 8 byte aligned */
if (st->chip_info->bits != 8)
diff --git a/drivers/staging/iio/iio.h b/drivers/staging/iio/iio.h
index 480b4d0..5854f4a 100644
--- a/drivers/staging/iio/iio.h
+++ b/drivers/staging/iio/iio.h
@@ -298,7 +298,8 @@ struct iio_dev {
struct iio_ring_buffer *ring;
struct mutex mlock;
- u32 *available_scan_masks;
+ unsigned long *available_scan_masks;
+ unsigned masklength;
struct iio_trigger *trig;
struct iio_poll_func *pollfunc;
diff --git a/drivers/staging/iio/imu/adis16400_ring.c b/drivers/staging/iio/imu/adis16400_ring.c
index 3fc2403..1a47d07 100644
--- a/drivers/staging/iio/imu/adis16400_ring.c
+++ b/drivers/staging/iio/imu/adis16400_ring.c
@@ -85,7 +85,7 @@ static int adis16350_spi_read_all(struct device *dev, u8 *rx)
return -ENOMEM;
for (i = 0; i < ARRAY_SIZE(read_all_tx_array); i++)
- if (indio_dev->ring->scan_mask & (1 << i)) {
+ if (test_bit(i, indio_dev->ring->scan_mask)) {
xfers[j].tx_buf = &read_all_tx_array[i];
xfers[j].bits_per_word = 16;
xfers[j].len = 2;
@@ -117,7 +117,8 @@ static irqreturn_t adis16400_trigger_handler(int irq, void *p)
int i = 0, j, ret = 0;
s16 *data;
size_t datasize = ring->access->get_bytes_per_datum(ring);
- unsigned long mask = ring->scan_mask;
+ /* Asumption that long is enough for maximum channels */
+ unsigned long mask = *ring->scan_mask;
data = kmalloc(datasize , GFP_KERNEL);
if (data == NULL) {
@@ -189,8 +190,8 @@ int adis16400_configure_ring(struct iio_dev *indio_dev)
ring->scan_timestamp = true;
ring->setup_ops = &adis16400_ring_setup_ops;
ring->owner = THIS_MODULE;
- /* Set default scan mode */
- ring->scan_mask = st->variant->default_scan_mask;
+ /* Set default scan mode - assumes single long is big enough */
+ *ring->scan_mask = st->variant->default_scan_mask;
ring->scan_count = hweight_long(st->variant->default_scan_mask);
indio_dev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time,
diff --git a/drivers/staging/iio/industrialio-ring.c b/drivers/staging/iio/industrialio-ring.c
index 1607293..40c3b3e 100644
--- a/drivers/staging/iio/industrialio-ring.c
+++ b/drivers/staging/iio/industrialio-ring.c
@@ -118,9 +118,7 @@ static ssize_t iio_scan_el_show(struct device *dev,
static int iio_scan_mask_clear(struct iio_ring_buffer *ring, int bit)
{
- if (bit > IIO_MAX_SCAN_LENGTH)
- return -EINVAL;
- ring->scan_mask &= ~(1 << bit);
+ clear_bit(bit, ring->scan_mask);
ring->scan_count--;
return 0;
}
@@ -309,11 +307,21 @@ int iio_ring_buffer_register_ex(struct iio_dev *indio_dev, int id,
if (channels) {
/* new magic */
for (i = 0; i < num_channels; i++) {
+ /* Establish necessary mask length */
+ if (channels[i].scan_index > indio_dev->masklength - 1)
+ indio_dev->masklength
+ = indio_dev->channels[i].scan_index + 1;
+
ret = iio_ring_add_channel_sysfs(indio_dev,
&channels[i]);
if (ret < 0)
goto error_cleanup_group;
}
+ if (indio_dev->masklength)
+ ring->scan_mask
+ = kzalloc(sizeof(*ring->scan_mask)*
+ BITS_TO_LONGS(indio_dev->masklength),
+ GFP_KERNEL);
}
return 0;
@@ -329,6 +337,7 @@ EXPORT_SYMBOL(iio_ring_buffer_register_ex);
void iio_ring_buffer_unregister(struct iio_dev *indio_dev)
{
+ kfree(indio_dev->ring->scan_mask);
if (indio_dev->ring->attrs)
sysfs_remove_group(&indio_dev->dev.kobj,
indio_dev->ring->attrs);
@@ -525,3 +534,79 @@ int iio_sw_ring_preenable(struct iio_dev *indio_dev)
return 0;
}
EXPORT_SYMBOL(iio_sw_ring_preenable);
+
+
+/* note NULL used as error indicator as it doesn't make sense. */
+static unsigned long *iio_scan_mask_match(unsigned long *av_masks,
+ unsigned int masklength,
+ unsigned long *mask)
+{
+ if (bitmap_empty(mask, masklength))
+ return NULL;
+ while (*av_masks) {
+ if (bitmap_subset(mask, av_masks, masklength))
+ return av_masks;
+ av_masks += BITS_TO_LONGS(masklength);
+ }
+ return NULL;
+}
+
+/**
+ * iio_scan_mask_set() - set particular bit in the scan mask
+ * @ring: the ring buffer whose scan mask we are interested in
+ * @bit: the bit to be set.
+ **/
+int iio_scan_mask_set(struct iio_ring_buffer *ring, int bit)
+{
+ struct iio_dev *dev_info = ring->indio_dev;
+ unsigned long *mask;
+ unsigned long *trialmask;
+
+ trialmask = kmalloc(sizeof(*trialmask)*
+ BITS_TO_LONGS(dev_info->masklength),
+ GFP_KERNEL);
+
+ if (trialmask == NULL)
+ return -ENOMEM;
+
+ bitmap_copy(trialmask, ring->scan_mask, dev_info->masklength);
+ set_bit(bit, trialmask);
+
+ if (dev_info->available_scan_masks) {
+ mask = iio_scan_mask_match(dev_info->available_scan_masks,
+ dev_info->masklength,
+ trialmask);
+ if (!mask)
+ return -EINVAL;
+ }
+ bitmap_copy(ring->scan_mask, trialmask, dev_info->masklength);
+ ring->scan_count++;
+
+ kfree(trialmask);
+
+ return 0;
+};
+EXPORT_SYMBOL_GPL(iio_scan_mask_set);
+
+int iio_scan_mask_query(struct iio_ring_buffer *ring, int bit)
+{
+ struct iio_dev *dev_info = ring->indio_dev;
+ long *mask;
+
+ if (bit > dev_info->masklength)
+ return -EINVAL;
+
+ if (!ring->scan_mask)
+ return 0;
+ if (dev_info->available_scan_masks)
+ mask = iio_scan_mask_match(dev_info->available_scan_masks,
+ dev_info->masklength,
+ ring->scan_mask);
+ else
+ mask = ring->scan_mask;
+ if (!mask)
+ return 0;
+
+ return test_bit(bit, mask);
+};
+EXPORT_SYMBOL_GPL(iio_scan_mask_query);
diff --git a/drivers/staging/iio/meter/ade7758.h b/drivers/staging/iio/meter/ade7758.h
index 4d73e1a..20a2bca 100644
--- a/drivers/staging/iio/meter/ade7758.h
+++ b/drivers/staging/iio/meter/ade7758.h
@@ -122,7 +122,7 @@ struct ade7758_state {
u8 *tx;
u8 *rx;
struct mutex buf_lock;
- u32 available_scan_masks[AD7758_NUM_WAVESRC];
+ unsigned long available_scan_masks[AD7758_NUM_WAVESRC];
struct iio_chan_spec *ade7758_ring_channels;
struct spi_transfer ring_xfer[4];
struct spi_message ring_msg;
diff --git a/drivers/staging/iio/meter/ade7758_core.c b/drivers/staging/iio/meter/ade7758_core.c
index ce2d156..5270a10 100644
--- a/drivers/staging/iio/meter/ade7758_core.c
+++ b/drivers/staging/iio/meter/ade7758_core.c
@@ -766,7 +766,7 @@ static int __devinit ade7758_probe(struct spi_device *spi)
indio_dev->modes = INDIO_DIRECT_MODE;
for (i = 0; i < AD7758_NUM_WAVESRC; i++)
- st->available_scan_masks[i] = 1 << i;
+ set_bit(i, &st->available_scan_masks[i]);
indio_dev->available_scan_masks = st->available_scan_masks;
diff --git a/drivers/staging/iio/meter/ade7758_ring.c b/drivers/staging/iio/meter/ade7758_ring.c
index 5e740e3..9934f50 100644
--- a/drivers/staging/iio/meter/ade7758_ring.c
+++ b/drivers/staging/iio/meter/ade7758_ring.c
@@ -98,7 +98,7 @@ static int ade7758_ring_preenable(struct iio_dev *indio_dev)
if (!ring->scan_count)
return -EINVAL;
- channel = __ffs(ring->scan_mask);
+ channel = find_first_bit(ring->scan_mask, indio_dev->masklength);
d_size = st->ade7758_ring_channels[channel].scan_type.storagebits / 8;
diff --git a/drivers/staging/iio/ring_generic.h b/drivers/staging/iio/ring_generic.h
index db8d0d1..7e1beee 100644
--- a/drivers/staging/iio/ring_generic.h
+++ b/drivers/staging/iio/ring_generic.h
@@ -101,7 +101,7 @@ struct iio_ring_buffer {
int bpe;
struct attribute_group *scan_el_attrs;
int scan_count;
- unsigned long scan_mask;
+ long *scan_mask;
bool scan_timestamp;
const struct iio_ring_access_funcs *access;
const struct iio_ring_setup_ops *setup_ops;
@@ -121,6 +121,8 @@ struct iio_ring_buffer {
void iio_ring_buffer_init(struct iio_ring_buffer *ring,
struct iio_dev *dev_info);
+void iio_ring_buffer_deinit(struct iio_ring_buffer *ring);
+
/**
* __iio_update_ring_buffer() - update common elements of ring buffers
* @ring: ring buffer that is the event source
@@ -134,70 +136,14 @@ static inline void __iio_update_ring_buffer(struct iio_ring_buffer *ring,
ring->length = length;
}
-/*
- * These are mainly provided to allow for a change of implementation if a device
- * has a large number of scan elements
- */
-#define IIO_MAX_SCAN_LENGTH 31
-
-/* note 0 used as error indicator as it doesn't make sense. */
-static inline u32 iio_scan_mask_match(u32 *av_masks, u32 mask)
-{
- while (*av_masks) {
- if (!(~*av_masks & mask))
- return *av_masks;
- av_masks++;
- }
- return 0;
-}
-
-static inline int iio_scan_mask_query(struct iio_ring_buffer *ring, int bit)
-{
- struct iio_dev *dev_info = ring->indio_dev;
- u32 mask;
-
- if (bit > IIO_MAX_SCAN_LENGTH)
- return -EINVAL;
-
- if (!ring->scan_mask)
- return 0;
-
- if (dev_info->available_scan_masks)
- mask = iio_scan_mask_match(dev_info->available_scan_masks,
- ring->scan_mask);
- else
- mask = ring->scan_mask;
-
- if (!mask)
- return -EINVAL;
-
- return !!(mask & (1 << bit));
-};
+int iio_scan_mask_query(struct iio_ring_buffer *ring, int bit);
/**
* iio_scan_mask_set() - set particular bit in the scan mask
* @ring: the ring buffer whose scan mask we are interested in
* @bit: the bit to be set.
**/
-static inline int iio_scan_mask_set(struct iio_ring_buffer *ring, int bit)
-{
- struct iio_dev *dev_info = ring->indio_dev;
- u32 mask;
- u32 trialmask = ring->scan_mask | (1 << bit);
-
- if (bit > IIO_MAX_SCAN_LENGTH)
- return -EINVAL;
- if (dev_info->available_scan_masks) {
- mask = iio_scan_mask_match(dev_info->available_scan_masks,
- trialmask);
- if (!mask)
- return -EINVAL;
- }
- ring->scan_mask = trialmask;
- ring->scan_count++;
-
- return 0;
-};
+int iio_scan_mask_set(struct iio_ring_buffer *ring, int bit);
#define to_iio_ring_buffer(d) \
container_of(d, struct iio_ring_buffer, dev)
--
1.7.3.4
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH 3/3] staging:iio:events - new 64 bit code structure and push out drivers.
2011-07-25 13:35 [PATCH 0/3] blue part 7: IIO Allow for more channels Jonathan Cameron
2011-07-25 13:35 ` [PATCH 1/3] staging:iio: remove broken support for multiple event interfaces Jonathan Cameron
2011-07-25 13:35 ` [PATCH 2/3] staging:iio: Switch the channel masks to bitmaps so as to allow for more channels Jonathan Cameron
@ 2011-07-25 13:35 ` Jonathan Cameron
2 siblings, 0 replies; 8+ messages in thread
From: Jonathan Cameron @ 2011-07-25 13:35 UTC (permalink / raw)
To: linux-iio; +Cc: Jonathan Cameron
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.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
---
drivers/staging/iio/accel/lis3l02dq_core.c | 8 +++---
drivers/staging/iio/accel/sca3000_core.c | 10 +++---
drivers/staging/iio/adc/max1363_core.c | 10 +++---
drivers/staging/iio/chrdev.h | 2 +-
drivers/staging/iio/iio.h | 39 +++++++++++++++-------------
drivers/staging/iio/industrialio-core.c | 16 +++--------
drivers/staging/iio/light/tsl2563.c | 12 ++++----
drivers/staging/iio/sysfs.h | 36 ++++++++++++++-----------
8 files changed, 67 insertions(+), 66 deletions(-)
diff --git a/drivers/staging/iio/accel/lis3l02dq_core.c b/drivers/staging/iio/accel/lis3l02dq_core.c
index 83c12b0..8c25309 100644
--- a/drivers/staging/iio/accel/lis3l02dq_core.c
+++ b/drivers/staging/iio/accel/lis3l02dq_core.c
@@ -199,14 +199,14 @@ static u8 lis3l02dq_axis_map[3][3] = {
};
static int lis3l02dq_read_thresh(struct iio_dev *indio_dev,
- int e,
+ u64 e,
int *val)
{
return lis3l02dq_read_reg_s16(indio_dev, LIS3L02DQ_REG_THS_L_ADDR, val);
}
static int lis3l02dq_write_thresh(struct iio_dev *indio_dev,
- int event_code,
+ u64 event_code,
int val)
{
u16 value = val;
@@ -533,7 +533,7 @@ static struct iio_chan_spec lis3l02dq_channels[] = {
static ssize_t lis3l02dq_read_event_config(struct iio_dev *indio_dev,
- int event_code)
+ u64 event_code)
{
u8 val;
@@ -585,7 +585,7 @@ error_ret:
}
static int lis3l02dq_write_event_config(struct iio_dev *indio_dev,
- int event_code,
+ u64 event_code,
int state)
{
int ret = 0;
diff --git a/drivers/staging/iio/accel/sca3000_core.c b/drivers/staging/iio/accel/sca3000_core.c
index 02ff6ba..851a143 100644
--- a/drivers/staging/iio/accel/sca3000_core.c
+++ b/drivers/staging/iio/accel/sca3000_core.c
@@ -694,7 +694,7 @@ static IIO_CONST_ATTR_TEMP_OFFSET("-214.6");
* sca3000_read_thresh() - query of a threshold
**/
static int sca3000_read_thresh(struct iio_dev *indio_dev,
- int e,
+ u64 e,
int *val)
{
int ret, i;
@@ -722,8 +722,8 @@ static int sca3000_read_thresh(struct iio_dev *indio_dev,
* sca3000_write_thresh() control of threshold
**/
static int sca3000_write_thresh(struct iio_dev *indio_dev,
- int e,
- int val)
+ u64 e,
+ int val)
{
struct sca3000_state *st = iio_priv(indio_dev);
int num = IIO_EVENT_CODE_EXTRACT_MODIFIER(e);
@@ -857,7 +857,7 @@ done:
* sca3000_read_event_config() what events are enabled
**/
static int sca3000_read_event_config(struct iio_dev *indio_dev,
- int e)
+ u64 e)
{
struct sca3000_state *st = iio_priv(indio_dev);
int ret;
@@ -960,7 +960,7 @@ error_ret:
* this mode is disabled. Currently normal mode is assumed.
**/
static int sca3000_write_event_config(struct iio_dev *indio_dev,
- int e,
+ u64 e,
int state)
{
struct sca3000_state *st = iio_priv(indio_dev);
diff --git a/drivers/staging/iio/adc/max1363_core.c b/drivers/staging/iio/adc/max1363_core.c
index d37d1ca..66e4735 100644
--- a/drivers/staging/iio/adc/max1363_core.c
+++ b/drivers/staging/iio/adc/max1363_core.c
@@ -552,7 +552,7 @@ static IIO_CONST_ATTR(sampling_frequency_available,
"133000 665000 33300 16600 8300 4200 2000 1000");
static int max1363_read_thresh(struct iio_dev *indio_dev,
- int event_code,
+ u64 event_code,
int *val)
{
struct max1363_state *st = iio_priv(indio_dev);
@@ -564,7 +564,7 @@ static int max1363_read_thresh(struct iio_dev *indio_dev,
}
static int max1363_write_thresh(struct iio_dev *indio_dev,
- int event_code,
+ u64 event_code,
int val)
{
struct max1363_state *st = iio_priv(indio_dev);
@@ -592,7 +592,7 @@ static int max1363_write_thresh(struct iio_dev *indio_dev,
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, 1, IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING),
IIO_UNMOD_EVENT_CODE(IIO_IN, 2, IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING),
@@ -623,7 +623,7 @@ static irqreturn_t max1363_event_handler(int irq, void *private)
}
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);
@@ -775,7 +775,7 @@ error_ret:
}
static int max1363_write_event_config(struct iio_dev *indio_dev,
- int event_code,
+ u64 event_code,
int state)
{
int ret = 0;
diff --git a/drivers/staging/iio/chrdev.h b/drivers/staging/iio/chrdev.h
index 28cce12..d8e736f 100644
--- a/drivers/staging/iio/chrdev.h
+++ b/drivers/staging/iio/chrdev.h
@@ -17,7 +17,7 @@
* the interrupt handler)
*/
struct iio_event_data {
- int id;
+ u64 id;
s64 timestamp;
};
diff --git a/drivers/staging/iio/iio.h b/drivers/staging/iio/iio.h
index 5854f4a..dec098f 100644
--- a/drivers/staging/iio/iio.h
+++ b/drivers/staging/iio/iio.h
@@ -46,19 +46,22 @@ enum iio_chan_type {
#define IIO_OUT IIO_VOLTAGE
#define IIO_IN_DIFF IIO_VOLTAGE_DIFF
-#define IIO_MOD_X 0
-#define IIO_MOD_LIGHT_BOTH 0
-#define IIO_MOD_Y 1
-#define IIO_MOD_LIGHT_IR 1
-#define IIO_MOD_Z 2
-#define IIO_MOD_X_AND_Y 3
-#define IIO_MOD_X_ANX_Z 4
-#define IIO_MOD_Y_AND_Z 5
-#define IIO_MOD_X_AND_Y_AND_Z 6
-#define IIO_MOD_X_OR_Y 7
-#define IIO_MOD_X_OR_Z 8
-#define IIO_MOD_Y_OR_Z 9
-#define IIO_MOD_X_OR_Y_OR_Z 10
+enum iio_modifier {
+ IIO_NO_MOD,
+ IIO_MOD_X,
+ IIO_MOD_Y,
+ IIO_MOD_Z,
+ IIO_MOD_X_AND_Y,
+ IIO_MOD_X_ANX_Z,
+ IIO_MOD_Y_AND_Z,
+ IIO_MOD_X_AND_Y_AND_Z,
+ IIO_MOD_X_OR_Y,
+ IIO_MOD_X_OR_Z,
+ IIO_MOD_Y_OR_Z,
+ 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 */
enum iio_chan_info_enum {
@@ -249,17 +252,17 @@ struct iio_info {
long mask);
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 event_code,
+ u64 event_code,
int state);
int (*read_event_value)(struct iio_dev *indio_dev,
- int event_code,
+ u64 event_code,
int *val);
int (*write_event_value)(struct iio_dev *indio_dev,
- int event_code,
+ u64 event_code,
int val);
int (*validate_trigger)(struct iio_dev *indio_dev,
struct iio_trigger *trig);
@@ -331,7 +334,7 @@ void iio_device_unregister(struct iio_dev *dev_info);
* @ev_code: What event
* @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;
diff --git a/drivers/staging/iio/industrialio-core.c b/drivers/staging/iio/industrialio-core.c
index 77b5b2d..e92e28d 100644
--- a/drivers/staging/iio/industrialio-core.c
+++ b/drivers/staging/iio/industrialio-core.c
@@ -69,15 +69,12 @@ static const char * const iio_chan_type_name_spec_complex[] = {
[IIO_VOLTAGE_DIFF] = "voltage%d-voltage%d",
};
-static const char * const iio_modifier_names_light[] = {
- [IIO_MOD_LIGHT_BOTH] = "both",
- [IIO_MOD_LIGHT_IR] = "ir",
-};
-
-static const char * const iio_modifier_names_axial[] = {
+static const char * const iio_modifier_names[] = {
[IIO_MOD_X] = "x",
[IIO_MOD_Y] = "y",
[IIO_MOD_Z] = "z",
+ [IIO_MOD_LIGHT_BOTH] = "both",
+ [IIO_MOD_LIGHT_IR] = "ir",
};
/* relies on pairs of these shared then separate */
@@ -150,7 +147,7 @@ struct iio_event_interface {
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_detected_event_list *ev;
@@ -464,9 +461,6 @@ static int __iio_build_postfix(struct iio_chan_spec const *chan,
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:
@@ -474,7 +468,7 @@ static int __iio_build_postfix(struct iio_chan_spec const *chan,
case IIO_ROT:
case IIO_ANGL:
intermediate
- = iio_modifier_names_axial[chan->channel2];
+ = iio_modifier_names[chan->channel2];
break;
default:
return -EINVAL;
diff --git a/drivers/staging/iio/light/tsl2563.c b/drivers/staging/iio/light/tsl2563.c
index 10a658d..cafcbfb 100644
--- a/drivers/staging/iio/light/tsl2563.c
+++ b/drivers/staging/iio/light/tsl2563.c
@@ -540,8 +540,8 @@ static const struct iio_chan_spec tsl2563_channels[] = {
};
static int tsl2563_read_thresh(struct iio_dev *indio_dev,
- int event_code,
- int *val)
+ u64 event_code,
+ int *val)
{
struct tsl2563_chip *chip = iio_priv(indio_dev);
@@ -560,7 +560,7 @@ static int tsl2563_read_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)
{
struct tsl2563_chip *chip = iio_priv(indio_dev);
@@ -608,8 +608,8 @@ static irqreturn_t tsl2563_event_handler(int irq, void *private)
}
static int tsl2563_write_interrupt_config(struct iio_dev *indio_dev,
- int event_code,
- int state)
+ u64 event_code,
+ int state)
{
struct tsl2563_chip *chip = iio_priv(indio_dev);
int ret = 0;
@@ -650,7 +650,7 @@ out:
}
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);
int ret;
diff --git a/drivers/staging/iio/sysfs.h b/drivers/staging/iio/sysfs.h
index 8277950..6bd5928 100644
--- a/drivers/staging/iio/sysfs.h
+++ b/drivers/staging/iio/sysfs.h
@@ -120,36 +120,40 @@ struct iio_const_attr {
#define IIO_CONST_ATTR_TEMP_SCALE(_string) \
IIO_CONST_ATTR(temp_scale, _string)
-#define IIO_EV_TYPE_THRESH 0
-#define IIO_EV_TYPE_MAG 1
-#define IIO_EV_TYPE_ROC 2
+enum iio_event_type {
+ IIO_EV_TYPE_THRESH,
+ IIO_EV_TYPE_MAG,
+ IIO_EV_TYPE_ROC,
+};
+
+enum iio_event_direction {
+ IIO_EV_DIR_EITHER,
+ IIO_EV_DIR_RISING,
+ IIO_EV_DIR_FALLING,
+};
-#define IIO_EV_DIR_EITHER 0
-#define IIO_EV_DIR_RISING 1
-#define IIO_EV_DIR_FALLING 2
+#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_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) | \
- ((modifier) << 13) | ((type) << 16) | ((direction) << 24))
-
#define IIO_MOD_EVENT_CODE(channelclass, number, modifier, \
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) \
- 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.
* 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_ */
--
1.7.3.4
^ permalink raw reply related [flat|nested] 8+ messages in thread
* RE: [PATCH 1/3] staging:iio: remove broken support for multiple event interfaces.
2011-07-25 13:35 ` [PATCH 1/3] staging:iio: remove broken support for multiple event interfaces Jonathan Cameron
@ 2011-07-26 9:04 ` Hennerich, Michael
2011-07-29 17:17 ` Jonathan Cameron
1 sibling, 0 replies; 8+ messages in thread
From: Hennerich, Michael @ 2011-07-26 9:04 UTC (permalink / raw)
To: Jonathan Cameron, linux-iio@vger.kernel.org
Cc: device-drivers-devel@blackfin.uclinux.org
Jonathan Cameron wrote on 2011-07-25:
> We don't have a use case for these. Two drivers appeared to use them
> but both report all events on the first.
>
> Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
> ---
> drivers/staging/iio/accel/lis3l02dq_core.c | 13 +--
> drivers/staging/iio/accel/sca3000_core.c | 9 +-
> drivers/staging/iio/adc/ad7150.c | 21 +++--
> drivers/staging/iio/adc/ad7291.c | 13 +--
> drivers/staging/iio/adc/ad7745.c | 5 +-
> drivers/staging/iio/adc/ad7816.c | 5 +-
> drivers/staging/iio/adc/ad799x_core.c | 4 +-
> drivers/staging/iio/adc/adt7310.c | 7 +-
> drivers/staging/iio/adc/adt7410.c | 7 +-
> drivers/staging/iio/adc/adt75.c | 3 +-
> drivers/staging/iio/adc/max1363_core.c | 4 +-
> drivers/staging/iio/addac/adt7316.c | 18 ++--
> drivers/staging/iio/dac/ad5504.c | 4 +-
> drivers/staging/iio/iio.h | 11 +--
> drivers/staging/iio/industrialio-core.c | 146 +++++++++++++-------
Greetings,
Michael
--
Analog Devices GmbH Wilhelm-Wagenfeld-Str. 6 80807 Muenchen
Sitz der Gesellschaft: Muenchen; Registergericht: Muenchen HRB 40368; Gesch=
aeftsfuehrer:Dr.Carsten Suckrow, Thomas Wessel, William A. Martin, Margaret=
Seif
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH 1/3] staging:iio: remove broken support for multiple event interfaces.
2011-07-25 13:35 ` [PATCH 1/3] staging:iio: remove broken support for multiple event interfaces Jonathan Cameron
2011-07-26 9:04 ` Hennerich, Michael
@ 2011-07-29 17:17 ` Jonathan Cameron
2011-07-29 17:18 ` Jonathan Cameron
1 sibling, 1 reply; 8+ messages in thread
From: Jonathan Cameron @ 2011-07-29 17:17 UTC (permalink / raw)
To: Jonathan Cameron; +Cc: linux-iio
On 07/25/11 14:35, Jonathan Cameron wrote:
> We don't have a use case for these. Two drivers appeared to use them
> but both report all events on the first.
Silly bug in here as well. It subtracts one from an unsigned before doing a
comparison. Result is that for some devices, the masklength will end up as 0
and hence all sorts of fun will occur. Sorry about that, will be fixed in the
git tree in a few mins.
>
> Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
> ---
> drivers/staging/iio/accel/lis3l02dq_core.c | 13 +--
> drivers/staging/iio/accel/sca3000_core.c | 9 +-
> drivers/staging/iio/adc/ad7150.c | 21 +++--
> drivers/staging/iio/adc/ad7291.c | 13 +--
> drivers/staging/iio/adc/ad7745.c | 5 +-
> drivers/staging/iio/adc/ad7816.c | 5 +-
> drivers/staging/iio/adc/ad799x_core.c | 4 +-
> drivers/staging/iio/adc/adt7310.c | 7 +-
> drivers/staging/iio/adc/adt7410.c | 7 +-
> drivers/staging/iio/adc/adt75.c | 3 +-
> drivers/staging/iio/adc/max1363_core.c | 4 +-
> drivers/staging/iio/addac/adt7316.c | 18 ++--
> drivers/staging/iio/dac/ad5504.c | 4 +-
> drivers/staging/iio/iio.h | 11 +--
> drivers/staging/iio/industrialio-core.c | 146 +++++++++++++--------------
> drivers/staging/iio/light/tsl2563.c | 3 +-
> 16 files changed, 123 insertions(+), 150 deletions(-)
>
> diff --git a/drivers/staging/iio/accel/lis3l02dq_core.c b/drivers/staging/iio/accel/lis3l02dq_core.c
> index 062632b..83c12b0 100644
> --- a/drivers/staging/iio/accel/lis3l02dq_core.c
> +++ b/drivers/staging/iio/accel/lis3l02dq_core.c
> @@ -451,7 +451,7 @@ static irqreturn_t lis3l02dq_event_handler(int irq, void *private)
> &t);
>
> if (t & LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_Z_HIGH)
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_MOD_EVENT_CODE(IIO_ACCEL,
> 0,
> IIO_MOD_Z,
> @@ -460,7 +460,7 @@ static irqreturn_t lis3l02dq_event_handler(int irq, void *private)
> timestamp);
>
> if (t & LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_Z_LOW)
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_MOD_EVENT_CODE(IIO_ACCEL,
> 0,
> IIO_MOD_Z,
> @@ -469,7 +469,7 @@ static irqreturn_t lis3l02dq_event_handler(int irq, void *private)
> timestamp);
>
> if (t & LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_Y_HIGH)
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_MOD_EVENT_CODE(IIO_ACCEL,
> 0,
> IIO_MOD_Y,
> @@ -478,7 +478,7 @@ static irqreturn_t lis3l02dq_event_handler(int irq, void *private)
> timestamp);
>
> if (t & LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_Y_LOW)
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_MOD_EVENT_CODE(IIO_ACCEL,
> 0,
> IIO_MOD_Y,
> @@ -487,7 +487,7 @@ static irqreturn_t lis3l02dq_event_handler(int irq, void *private)
> timestamp);
>
> if (t & LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_X_HIGH)
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_MOD_EVENT_CODE(IIO_ACCEL,
> 0,
> IIO_MOD_X,
> @@ -496,7 +496,7 @@ static irqreturn_t lis3l02dq_event_handler(int irq, void *private)
> timestamp);
>
> if (t & LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_X_LOW)
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_MOD_EVENT_CODE(IIO_ACCEL,
> 0,
> IIO_MOD_X,
> @@ -650,7 +650,6 @@ static const struct attribute_group lis3l02dq_attribute_group = {
> };
>
> static const struct iio_info lis3l02dq_info = {
> - .num_interrupt_lines = 1,
> .read_raw = &lis3l02dq_read_raw,
> .write_raw = &lis3l02dq_write_raw,
> .read_event_value = &lis3l02dq_read_thresh,
> diff --git a/drivers/staging/iio/accel/sca3000_core.c b/drivers/staging/iio/accel/sca3000_core.c
> index 9d1e699..02ff6ba 100644
> --- a/drivers/staging/iio/accel/sca3000_core.c
> +++ b/drivers/staging/iio/accel/sca3000_core.c
> @@ -814,7 +814,7 @@ static irqreturn_t sca3000_event_handler(int irq, void *private)
> sca3000_ring_int_process(val, indio_dev->ring);
>
> if (val & SCA3000_INT_STATUS_FREE_FALL)
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_MOD_EVENT_CODE(IIO_ACCEL,
> 0,
> IIO_MOD_X_AND_Y_AND_Z,
> @@ -823,7 +823,7 @@ static irqreturn_t sca3000_event_handler(int irq, void *private)
> last_timestamp);
>
> if (val & SCA3000_INT_STATUS_Y_TRIGGER)
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_MOD_EVENT_CODE(IIO_ACCEL,
> 0,
> IIO_MOD_Y,
> @@ -832,7 +832,7 @@ static irqreturn_t sca3000_event_handler(int irq, void *private)
> last_timestamp);
>
> if (val & SCA3000_INT_STATUS_X_TRIGGER)
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_MOD_EVENT_CODE(IIO_ACCEL,
> 0,
> IIO_MOD_X,
> @@ -841,7 +841,7 @@ static irqreturn_t sca3000_event_handler(int irq, void *private)
> last_timestamp);
>
> if (val & SCA3000_INT_STATUS_Z_TRIGGER)
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_MOD_EVENT_CODE(IIO_ACCEL,
> 0,
> IIO_MOD_Z,
> @@ -1102,7 +1102,6 @@ error_ret:
> static const struct iio_info sca3000_info = {
> .attrs = &sca3000_attribute_group,
> .read_raw = &sca3000_read_raw,
> - .num_interrupt_lines = 1,
> .event_attrs = &sca3000_event_attribute_group,
> .read_event_value = &sca3000_read_thresh,
> .write_event_value = &sca3000_write_thresh,
> diff --git a/drivers/staging/iio/adc/ad7150.c b/drivers/staging/iio/adc/ad7150.c
> index 672493e..240c208 100644
> --- a/drivers/staging/iio/adc/ad7150.c
> +++ b/drivers/staging/iio/adc/ad7150.c
> @@ -650,30 +650,34 @@ static irqreturn_t ad7150_event_handler(int irq, void *private)
>
> ad7150_i2c_read(chip, AD7150_STATUS, &int_status, 1);
>
> - if ((int_status & AD7150_STATUS_OUT1) && !(chip->old_state & AD7150_STATUS_OUT1))
> - iio_push_event(indio_dev, 0,
> + if ((int_status & AD7150_STATUS_OUT1) &&
> + !(chip->old_state & AD7150_STATUS_OUT1))
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_IN,
> 0,
> IIO_EV_TYPE_THRESH,
> IIO_EV_DIR_RISING),
> timestamp);
> - else if ((!(int_status & AD7150_STATUS_OUT1)) && (chip->old_state & AD7150_STATUS_OUT1))
> - iio_push_event(indio_dev, 0,
> + else if ((!(int_status & AD7150_STATUS_OUT1)) &&
> + (chip->old_state & AD7150_STATUS_OUT1))
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_IN,
> 0,
> IIO_EV_TYPE_THRESH,
> IIO_EV_DIR_FALLING),
> timestamp);
>
> - if ((int_status & AD7150_STATUS_OUT2) && !(chip->old_state & AD7150_STATUS_OUT2))
> - iio_push_event(indio_dev, 0,
> + if ((int_status & AD7150_STATUS_OUT2) &&
> + !(chip->old_state & AD7150_STATUS_OUT2))
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_IN,
> 1,
> IIO_EV_TYPE_THRESH,
> IIO_EV_DIR_RISING),
> timestamp);
> - else if ((!(int_status & AD7150_STATUS_OUT2)) && (chip->old_state & AD7150_STATUS_OUT2))
> - iio_push_event(indio_dev, 0,
> + else if ((!(int_status & AD7150_STATUS_OUT2)) &&
> + (chip->old_state & AD7150_STATUS_OUT2))
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_IN,
> 1,
> IIO_EV_TYPE_THRESH,
> @@ -702,7 +706,6 @@ static struct attribute_group ad7150_event_attribute_group = {
>
> static const struct iio_info ad7150_info = {
> .attrs = &ad7150_attribute_group,
> - .num_interrupt_lines = 1,
> .event_attrs = &ad7150_event_attribute_group,
> .driver_module = THIS_MODULE,
> };
> diff --git a/drivers/staging/iio/adc/ad7291.c b/drivers/staging/iio/adc/ad7291.c
> index 96cbb17..3991633 100644
> --- a/drivers/staging/iio/adc/ad7291.c
> +++ b/drivers/staging/iio/adc/ad7291.c
> @@ -478,28 +478,28 @@ static irqreturn_t ad7291_event_handler(int irq, void *private)
> ad7291_i2c_write(chip, AD7291_COMMAND, command);
>
> if (t_status & (1 << 0))
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_TEMP,
> 0,
> IIO_EV_TYPE_THRESH,
> IIO_EV_DIR_FALLING),
> timestamp);
> if (t_status & (1 << 1))
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_TEMP,
> 0,
> IIO_EV_TYPE_THRESH,
> IIO_EV_DIR_RISING),
> timestamp);
> if (t_status & (1 << 2))
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_TEMP,
> 0,
> IIO_EV_TYPE_THRESH,
> IIO_EV_DIR_FALLING),
> timestamp);
> if (t_status & (1 << 3))
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_TEMP,
> 0,
> IIO_EV_TYPE_THRESH,
> @@ -508,14 +508,14 @@ static irqreturn_t ad7291_event_handler(int irq, void *private)
>
> for (i = 0; i < AD7291_VOLTAGE_LIMIT_COUNT*2; i += 2) {
> if (v_status & (1 << i))
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_IN,
> i/2,
> IIO_EV_TYPE_THRESH,
> IIO_EV_DIR_FALLING),
> timestamp);
> if (v_status & (1 << (i + 1)))
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_IN,
> i/2,
> IIO_EV_TYPE_THRESH,
> @@ -779,7 +779,6 @@ static struct attribute_group ad7291_event_attribute_group = {
>
> static const struct iio_info ad7291_info = {
> .attrs = &ad7291_attribute_group,
> - .num_interrupt_lines = 1,
> .event_attrs = &ad7291_event_attribute_group,
> };
>
> diff --git a/drivers/staging/iio/adc/ad7745.c b/drivers/staging/iio/adc/ad7745.c
> index d6e18e1..4a504ce 100644
> --- a/drivers/staging/iio/adc/ad7745.c
> +++ b/drivers/staging/iio/adc/ad7745.c
> @@ -539,12 +539,12 @@ static irqreturn_t ad774x_event_handler(int irq, void *private)
> ad774x_i2c_read(chip, AD774X_STATUS, &int_status, 1);
>
> if (int_status & AD774X_STATUS_RDYCAP)
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_EVENT_CODE_CAP_RDY,
> iio_get_time_ns());
>
> if (int_status & AD774X_STATUS_RDYVT)
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_EVENT_CODE_VT_RDY,
> iio_get_time_ns());
>
> @@ -568,7 +568,6 @@ static struct attribute_group ad774x_event_attribute_group = {
> static const struct iio_info ad774x_info = {
> .attrs = &ad774x_event_attribute_group,
> .event_attrs = &ad774x_event_attribute_group,
> - .num_interrupt_lines = 1,
> .driver_module = THIS_MODULE,
> };
> /*
> diff --git a/drivers/staging/iio/adc/ad7816.c b/drivers/staging/iio/adc/ad7816.c
> index 91a61fc..fb861fb 100644
> --- a/drivers/staging/iio/adc/ad7816.c
> +++ b/drivers/staging/iio/adc/ad7816.c
> @@ -253,9 +253,7 @@ static const struct attribute_group ad7816_attribute_group = {
>
> static irqreturn_t ad7816_event_handler(int irq, void *private)
> {
> - iio_push_event(private, 0,
> - IIO_EVENT_CODE_AD7816_OTI,
> - iio_get_time_ns());
> + iio_push_event(private, IIO_EVENT_CODE_AD7816_OTI, iio_get_time_ns());
> return IRQ_HANDLED;
> }
>
> @@ -333,7 +331,6 @@ static struct attribute_group ad7816_event_attribute_group = {
>
> static const struct iio_info ad7816_info = {
> .attrs = &ad7816_attribute_group,
> - .num_interrupt_lines = 1,
> .event_attrs = &ad7816_event_attribute_group,
> .driver_module = THIS_MODULE,
> };
> diff --git a/drivers/staging/iio/adc/ad799x_core.c b/drivers/staging/iio/adc/ad799x_core.c
> index 33d7fb1..11d0add 100644
> --- a/drivers/staging/iio/adc/ad799x_core.c
> +++ b/drivers/staging/iio/adc/ad799x_core.c
> @@ -333,7 +333,7 @@ static irqreturn_t ad799x_event_handler(int irq, void *private)
>
> for (i = 0; i < 8; i++) {
> if (status & (1 << i))
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> i & 0x1 ?
> IIO_UNMOD_EVENT_CODE(IIO_IN,
> (i >> 1),
> @@ -473,14 +473,12 @@ static const struct iio_info ad7991_info = {
>
> static const struct iio_info ad7992_info = {
> .read_raw = &ad799x_read_raw,
> - .num_interrupt_lines = 1,
> .event_attrs = &ad7992_event_attrs_group,
> .driver_module = THIS_MODULE,
> };
>
> static const struct iio_info ad7993_4_7_8_info = {
> .read_raw = &ad799x_read_raw,
> - .num_interrupt_lines = 1,
> .event_attrs = &ad7993_4_7_8_event_attrs_group,
> .driver_module = THIS_MODULE,
> };
> diff --git a/drivers/staging/iio/adc/adt7310.c b/drivers/staging/iio/adc/adt7310.c
> index 2ed5e84..8f5c3fc 100644
> --- a/drivers/staging/iio/adc/adt7310.c
> +++ b/drivers/staging/iio/adc/adt7310.c
> @@ -399,19 +399,19 @@ static irqreturn_t adt7310_event_handler(int irq, void *private)
> return ret;
>
> if (status & ADT7310_STAT_T_HIGH)
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
> IIO_EV_TYPE_THRESH,
> IIO_EV_DIR_RISING),
> timestamp);
> if (status & ADT7310_STAT_T_LOW)
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
> IIO_EV_TYPE_THRESH,
> IIO_EV_DIR_FALLING),
> timestamp);
> if (status & ADT7310_STAT_T_CRIT)
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
> IIO_EV_TYPE_THRESH,
> IIO_EV_DIR_RISING),
> @@ -749,7 +749,6 @@ static struct attribute_group adt7310_event_attribute_group[ADT7310_IRQS] = {
>
> static const struct iio_info adt7310_info = {
> .attrs = &adt7310_attribute_group,
> - .num_interrupt_lines = ADT7310_IRQS,
> .event_attrs = adt7310_event_attribute_group,
> .driver_module = THIS_MODULE,
> };
> diff --git a/drivers/staging/iio/adc/adt7410.c b/drivers/staging/iio/adc/adt7410.c
> index 0387c7c..c7b1ceb 100644
> --- a/drivers/staging/iio/adc/adt7410.c
> +++ b/drivers/staging/iio/adc/adt7410.c
> @@ -365,19 +365,19 @@ static irqreturn_t adt7410_event_handler(int irq, void *private)
> return IRQ_HANDLED;
>
> if (status & ADT7410_STAT_T_HIGH)
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
> IIO_EV_TYPE_THRESH,
> IIO_EV_DIR_RISING),
> timestamp);
> if (status & ADT7410_STAT_T_LOW)
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
> IIO_EV_TYPE_THRESH,
> IIO_EV_DIR_FALLING),
> timestamp);
> if (status & ADT7410_STAT_T_CRIT)
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
> IIO_EV_TYPE_THRESH,
> IIO_EV_DIR_RISING),
> @@ -716,7 +716,6 @@ static struct attribute_group adt7410_event_attribute_group[ADT7410_IRQS] = {
>
> static const struct iio_info adt7410_info = {
> .attrs = &adt7410_attribute_group,
> - .num_interrupt_lines = ADT7410_IRQS,
> .event_attrs = adt7410_event_attribute_group,
> .driver_module = THIS_MODULE,
> };
> diff --git a/drivers/staging/iio/adc/adt75.c b/drivers/staging/iio/adc/adt75.c
> index ed42945..a306dbd 100644
> --- a/drivers/staging/iio/adc/adt75.c
> +++ b/drivers/staging/iio/adc/adt75.c
> @@ -264,7 +264,7 @@ static const struct attribute_group adt75_attribute_group = {
>
> static irqreturn_t adt75_event_handler(int irq, void *private)
> {
> - iio_push_event(private, 0,
> + iio_push_event(private,
> IIO_EVENT_CODE_ADT75_OTI,
> iio_get_time_ns());
>
> @@ -534,7 +534,6 @@ static struct attribute_group adt75_event_attribute_group = {
>
> static const struct iio_info adt75_info = {
> .attrs = &adt75_attribute_group,
> - .num_interrupt_lines = 1,
> .event_attrs = &adt75_event_attribute_group,
> .driver_module = THIS_MODULE,
> };
> diff --git a/drivers/staging/iio/adc/max1363_core.c b/drivers/staging/iio/adc/max1363_core.c
> index d4a200a..ad2631d 100644
> --- a/drivers/staging/iio/adc/max1363_core.c
> +++ b/drivers/staging/iio/adc/max1363_core.c
> @@ -614,8 +614,7 @@ static irqreturn_t max1363_event_handler(int irq, void *private)
> i2c_master_recv(st->client, &rx, 1);
> mask = rx;
> for_each_set_bit(loc, &mask, 8)
> - iio_push_event(indio_dev, 0, max1363_event_codes[loc],
> - timestamp);
> + iio_push_event(indio_dev, max1363_event_codes[loc], timestamp);
> i2c_master_send(st->client, tx, 2);
>
> return IRQ_HANDLED;
> @@ -844,7 +843,6 @@ static const struct iio_info max1363_info = {
> .write_event_config = &max1363_write_event_config,
> .read_raw = &max1363_read_raw,
> .driver_module = THIS_MODULE,
> - .num_interrupt_lines = 1,
> .event_attrs = &max1363_event_attribute_group,
> };
>
> diff --git a/drivers/staging/iio/addac/adt7316.c b/drivers/staging/iio/addac/adt7316.c
> index ea6e994..bc7a196 100644
> --- a/drivers/staging/iio/addac/adt7316.c
> +++ b/drivers/staging/iio/addac/adt7316.c
> @@ -1776,43 +1776,43 @@ static irqreturn_t adt7316_event_handler(int irq, void *private)
>
> time = iio_get_time_ns();
> if (stat1 & (1 << 0))
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
> IIO_EV_TYPE_THRESH,
> IIO_EV_DIR_RISING),
> time);
> if (stat1 & (1 << 1))
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
> IIO_EV_TYPE_THRESH,
> IIO_EV_DIR_FALLING),
> time);
> if (stat1 & (1 << 2))
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_TEMP, 1,
> IIO_EV_TYPE_THRESH,
> IIO_EV_DIR_RISING),
> time);
> if (stat1 & (1 << 3))
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_TEMP, 1,
> IIO_EV_TYPE_THRESH,
> IIO_EV_DIR_FALLING),
> time);
> if (stat1 & (1 << 5))
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_IN, 1,
> IIO_EV_TYPE_THRESH,
> IIO_EV_DIR_EITHER),
> time);
> if (stat1 & (1 << 6))
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_IN, 2,
> IIO_EV_TYPE_THRESH,
> IIO_EV_DIR_EITHER),
> time);
> if (stat1 & (1 << 7))
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_IN, 3,
> IIO_EV_TYPE_THRESH,
> IIO_EV_DIR_EITHER),
> @@ -1821,7 +1821,7 @@ static irqreturn_t adt7316_event_handler(int irq, void *private)
> ret = chip->bus.read(chip->bus.client, ADT7316_INT_STAT2, &stat2);
> if (!ret) {
> if (stat2 & ADT7316_INT_MASK2_VDD)
> - iio_push_event(indio_dev, 0,
> + iio_push_event(indio_dev,
> IIO_UNMOD_EVENT_CODE(IIO_IN,
> 0,
> IIO_EV_TYPE_THRESH,
> @@ -2109,14 +2109,12 @@ EXPORT_SYMBOL(adt7316_enable);
>
> static const struct iio_info adt7316_info = {
> .attrs = &adt7316_attribute_group,
> - .num_interrupt_lines = 1,
> .event_attrs = &adt7316_event_attribute_group,
> .driver_module = THIS_MODULE,
> };
>
> static const struct iio_info adt7516_info = {
> .attrs = &adt7516_attribute_group,
> - .num_interrupt_lines = 1,
> .event_attrs = &adt7516_event_attribute_group,
> .driver_module = THIS_MODULE,
> };
> diff --git a/drivers/staging/iio/dac/ad5504.c b/drivers/staging/iio/dac/ad5504.c
> index c706ea4..54c8198 100644
> --- a/drivers/staging/iio/dac/ad5504.c
> +++ b/drivers/staging/iio/dac/ad5504.c
> @@ -251,7 +251,7 @@ static struct attribute_group ad5504_ev_attribute_group = {
>
> static irqreturn_t ad5504_event_handler(int irq, void *private)
> {
> - iio_push_event(private, 0,
> + iio_push_event(private,
> IIO_UNMOD_EVENT_CODE(IIO_TEMP,
> 0,
> IIO_EV_TYPE_THRESH,
> @@ -263,14 +263,12 @@ static irqreturn_t ad5504_event_handler(int irq, void *private)
>
> static const struct iio_info ad5504_info = {
> .attrs = &ad5504_attribute_group,
> - .num_interrupt_lines = 1,
> .event_attrs = &ad5504_ev_attribute_group,
> .driver_module = THIS_MODULE,
> };
>
> static const struct iio_info ad5501_info = {
> .attrs = &ad5501_attribute_group,
> - .num_interrupt_lines = 1,
> .event_attrs = &ad5504_ev_attribute_group,
> .driver_module = THIS_MODULE,
> };
> diff --git a/drivers/staging/iio/iio.h b/drivers/staging/iio/iio.h
> index 4311a36..480b4d0 100644
> --- a/drivers/staging/iio/iio.h
> +++ b/drivers/staging/iio/iio.h
> @@ -206,7 +206,6 @@ struct iio_dev;
> * struct iio_info - constant information about device
> * @driver_module: module structure used to ensure correct
> * ownership of chrdevs etc
> - * @num_interrupt_lines:number of physical interrupt lines from device
> * @event_attrs: event control attributes
> * @attrs: general purpose device attributes
> * @read_raw: function to request a value from the device.
> @@ -230,7 +229,6 @@ struct iio_dev;
> **/
> struct iio_info {
> struct module *driver_module;
> - int num_interrupt_lines;
> struct attribute_group *event_attrs;
> const struct attribute_group *attrs;
>
> @@ -275,7 +273,7 @@ struct iio_info {
> * @currentmode: [DRIVER] current operating mode
> * @dev: [DRIVER] device structure, should be assigned a parent
> * and owner
> - * @event_interfaces: [INTERN] event chrdevs associated with interrupt lines
> + * @event_interface: [INTERN] event chrdevs associated with interrupt lines
> * @ring: [DRIVER] any ring buffer present
> * @mlock: [INTERN] lock used to prevent simultaneous device state
> * changes
> @@ -295,7 +293,7 @@ struct iio_dev {
> int currentmode;
> struct device dev;
>
> - struct iio_event_interface *event_interfaces;
> + struct iio_event_interface *event_interface;
>
> struct iio_ring_buffer *ring;
> struct mutex mlock;
> @@ -332,10 +330,7 @@ void iio_device_unregister(struct iio_dev *dev_info);
> * @ev_code: What event
> * @timestamp: When the event occurred
> **/
> -int iio_push_event(struct iio_dev *dev_info,
> - int ev_line,
> - int ev_code,
> - s64 timestamp);
> +int iio_push_event(struct iio_dev *dev_info, int ev_code, s64 timestamp);
>
> extern struct bus_type iio_bus_type;
>
> diff --git a/drivers/staging/iio/industrialio-core.c b/drivers/staging/iio/industrialio-core.c
> index 06ffc48..77b5b2d 100644
> --- a/drivers/staging/iio/industrialio-core.c
> +++ b/drivers/staging/iio/industrialio-core.c
> @@ -150,13 +150,9 @@ struct iio_event_interface {
> unsigned long flags;
> };
>
> -int iio_push_event(struct iio_dev *dev_info,
> - int ev_line,
> - int ev_code,
> - s64 timestamp)
> +int iio_push_event(struct iio_dev *dev_info, int ev_code, s64 timestamp)
> {
> - struct iio_event_interface *ev_int
> - = &dev_info->event_interfaces[ev_line];
> + struct iio_event_interface *ev_int = dev_info->event_interface;
> struct iio_detected_event_list *ev;
> int ret = 0;
>
> @@ -295,19 +291,19 @@ static void iio_device_free_chrdev_minor(int val)
>
> static int iio_event_getfd(struct iio_dev *indio_dev)
> {
> - if (indio_dev->event_interfaces == NULL)
> + if (indio_dev->event_interface == NULL)
> return -ENODEV;
>
> - mutex_lock(&indio_dev->event_interfaces->event_list_lock);
> + mutex_lock(&indio_dev->event_interface->event_list_lock);
> if (test_and_set_bit(IIO_BUSY_BIT_POS,
> - &indio_dev->event_interfaces->flags)) {
> - mutex_unlock(&indio_dev->event_interfaces->event_list_lock);
> + &indio_dev->event_interface->flags)) {
> + mutex_unlock(&indio_dev->event_interface->event_list_lock);
> return -EBUSY;
> }
> - mutex_unlock(&indio_dev->event_interfaces->event_list_lock);
> + mutex_unlock(&indio_dev->event_interface->event_list_lock);
> return anon_inode_getfd("iio:event",
> &iio_event_chrdev_fileops,
> - &indio_dev->event_interfaces[0], O_RDONLY);
> + indio_dev->event_interface, O_RDONLY);
> }
>
> static void iio_setup_ev_int(struct iio_event_interface *ev_int)
> @@ -907,7 +903,7 @@ static int iio_device_add_event_sysfs(struct iio_dev *dev_info,
> how far*/
> 0,
> &dev_info->dev,
> - &dev_info->event_interfaces[0].
> + &dev_info->event_interface->
> dev_attr_list);
> kfree(postfix);
> if (ret)
> @@ -926,8 +922,8 @@ static int iio_device_add_event_sysfs(struct iio_dev *dev_info,
> mask,
> 0,
> &dev_info->dev,
> - &dev_info->event_interfaces[0]
> - .dev_attr_list);
> + &dev_info->event_interface->
> + dev_attr_list);
> kfree(postfix);
> if (ret)
> goto error_ret;
> @@ -938,12 +934,11 @@ error_ret:
> return ret;
> }
>
> -static inline void __iio_remove_event_config_attrs(struct iio_dev *dev_info,
> - int i)
> +static inline void __iio_remove_event_config_attrs(struct iio_dev *dev_info)
> {
> struct iio_dev_attr *p, *n;
> list_for_each_entry_safe(p, n,
> - &dev_info->event_interfaces[i].
> + &dev_info->event_interface->
> dev_attr_list, l) {
> sysfs_remove_file_from_group(&dev_info->dev.kobj,
> &p->dev_attr.attr,
> @@ -953,25 +948,23 @@ static inline void __iio_remove_event_config_attrs(struct iio_dev *dev_info,
> }
> }
>
> -static inline int __iio_add_event_config_attrs(struct iio_dev *dev_info, int i)
> +static inline int __iio_add_event_config_attrs(struct iio_dev *dev_info)
> {
> int j;
> int ret;
> - INIT_LIST_HEAD(&dev_info->event_interfaces[i].dev_attr_list);
> + INIT_LIST_HEAD(&dev_info->event_interface->dev_attr_list);
> /* Dynically created from the channels array */
> - if (dev_info->channels) {
> - for (j = 0; j < dev_info->num_channels; j++) {
> - ret = iio_device_add_event_sysfs(dev_info,
> - &dev_info
> - ->channels[j]);
> - if (ret)
> - goto error_clear_attrs;
> - }
> + for (j = 0; j < dev_info->num_channels; j++) {
> +
> + ret = iio_device_add_event_sysfs(dev_info,
> + &dev_info->channels[j]);
> + if (ret)
> + goto error_clear_attrs;
> }
> return 0;
>
> error_clear_attrs:
> - __iio_remove_event_config_attrs(dev_info, i);
> + __iio_remove_event_config_attrs(dev_info);
>
> return ret;
> }
> @@ -985,42 +978,49 @@ static struct attribute_group iio_events_dummy_group = {
> .attrs = iio_events_dummy_attrs
> };
>
> +static bool iio_check_for_dynamic_events(struct iio_dev *dev_info)
> +{
> + int j;
> + for (j = 0; j < dev_info->num_channels; j++)
> + if (dev_info->channels[j].event_mask != 0)
> + return true;
> + return false;
> +}
> +
> static int iio_device_register_eventset(struct iio_dev *dev_info)
> {
> - int ret = 0, i, j;
> + int ret = 0;
>
> - if (dev_info->info->num_interrupt_lines == 0)
> + if (!(dev_info->info->event_attrs ||
> + iio_check_for_dynamic_events(dev_info)))
> return 0;
>
> - dev_info->event_interfaces =
> - kzalloc(sizeof(struct iio_event_interface)
> - *dev_info->info->num_interrupt_lines,
> - GFP_KERNEL);
> - if (dev_info->event_interfaces == NULL) {
> + dev_info->event_interface =
> + kzalloc(sizeof(struct iio_event_interface), GFP_KERNEL);
> + if (dev_info->event_interface == NULL) {
> ret = -ENOMEM;
> goto error_ret;
> }
>
> - for (i = 0; i < dev_info->info->num_interrupt_lines; i++) {
> - iio_setup_ev_int(&dev_info->event_interfaces[i]);
> - if (dev_info->info->event_attrs != NULL)
> - ret = sysfs_create_group(&dev_info->dev.kobj,
> - &dev_info->info
> - ->event_attrs[i]);
> - else
> - ret = sysfs_create_group(&dev_info->dev.kobj,
> - &iio_events_dummy_group);
> - if (ret) {
> - dev_err(&dev_info->dev,
> - "Failed to register sysfs for event attrs");
> - goto error_free_setup_event_lines;
> - }
> - ret = __iio_add_event_config_attrs(dev_info, i);
> + iio_setup_ev_int(dev_info->event_interface);
> + if (dev_info->info->event_attrs != NULL)
> + ret = sysfs_create_group(&dev_info->dev.kobj,
> + dev_info->info->event_attrs);
> + else
> + ret = sysfs_create_group(&dev_info->dev.kobj,
> + &iio_events_dummy_group);
> + if (ret) {
> + dev_err(&dev_info->dev,
> + "Failed to register sysfs for event attrs");
> + goto error_free_setup_event_lines;
> + }
> + if (dev_info->channels) {
> + ret = __iio_add_event_config_attrs(dev_info);
> if (ret) {
> if (dev_info->info->event_attrs != NULL)
> sysfs_remove_group(&dev_info->dev.kobj,
> - &dev_info->info
> - ->event_attrs[i]);
> + dev_info->info
> + ->event_attrs);
> else
> sysfs_remove_group(&dev_info->dev.kobj,
> &iio_events_dummy_group);
> @@ -1031,16 +1031,14 @@ static int iio_device_register_eventset(struct iio_dev *dev_info)
> return 0;
>
> error_free_setup_event_lines:
> - for (j = 0; j < i; j++) {
> - __iio_remove_event_config_attrs(dev_info, j);
> - if (dev_info->info->event_attrs != NULL) {
> - sysfs_remove_group(&dev_info->dev.kobj,
> - &dev_info->info->event_attrs[j]);
> - sysfs_remove_group(&dev_info->dev.kobj,
> - &iio_events_dummy_group);
> - }
> - }
> - kfree(dev_info->event_interfaces);
> + __iio_remove_event_config_attrs(dev_info);
> + if (dev_info->info->event_attrs != NULL)
> + sysfs_remove_group(&dev_info->dev.kobj,
> + dev_info->info->event_attrs);
> + else
> + sysfs_remove_group(&dev_info->dev.kobj,
> + &iio_events_dummy_group);
> + kfree(dev_info->event_interface);
> error_ret:
>
> return ret;
> @@ -1048,20 +1046,16 @@ error_ret:
>
> static void iio_device_unregister_eventset(struct iio_dev *dev_info)
> {
> - int i;
> -
> - if (dev_info->info->num_interrupt_lines == 0)
> + if (dev_info->event_interface == NULL)
> return;
> - for (i = 0; i < dev_info->info->num_interrupt_lines; i++) {
> - __iio_remove_event_config_attrs(dev_info, i);
> - if (dev_info->info->event_attrs != NULL)
> - sysfs_remove_group(&dev_info->dev.kobj,
> - &dev_info->info->event_attrs[i]);
> - else
> - sysfs_remove_group(&dev_info->dev.kobj,
> - &iio_events_dummy_group);
> - }
> - kfree(dev_info->event_interfaces);
> + __iio_remove_event_config_attrs(dev_info);
> + if (dev_info->info->event_attrs != NULL)
> + sysfs_remove_group(&dev_info->dev.kobj,
> + dev_info->info->event_attrs);
> + else
> + sysfs_remove_group(&dev_info->dev.kobj,
> + &iio_events_dummy_group);
> + kfree(dev_info->event_interface);
> }
>
> static void iio_dev_release(struct device *device)
> diff --git a/drivers/staging/iio/light/tsl2563.c b/drivers/staging/iio/light/tsl2563.c
> index 7c4cc9e..10a658d 100644
> --- a/drivers/staging/iio/light/tsl2563.c
> +++ b/drivers/staging/iio/light/tsl2563.c
> @@ -595,7 +595,7 @@ static irqreturn_t tsl2563_event_handler(int irq, void *private)
> struct iio_dev *dev_info = private;
> struct tsl2563_chip *chip = iio_priv(dev_info);
>
> - iio_push_event(dev_info, 0,
> + iio_push_event(dev_info,
> IIO_UNMOD_EVENT_CODE(IIO_LIGHT,
> 0,
> IIO_EV_TYPE_THRESH,
> @@ -680,7 +680,6 @@ static const struct iio_info tsl2563_info_no_irq = {
>
> static const struct iio_info tsl2563_info = {
> .driver_module = THIS_MODULE,
> - .num_interrupt_lines = 1,
> .read_raw = &tsl2563_read_raw,
> .write_raw = &tsl2563_write_raw,
> .read_event_value = &tsl2563_read_thresh,
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH 1/3] staging:iio: remove broken support for multiple event interfaces.
2011-07-29 17:17 ` Jonathan Cameron
@ 2011-07-29 17:18 ` Jonathan Cameron
0 siblings, 0 replies; 8+ messages in thread
From: Jonathan Cameron @ 2011-07-29 17:18 UTC (permalink / raw)
To: Jonathan Cameron; +Cc: linux-iio
On 07/29/11 18:17, Jonathan Cameron wrote:
> On 07/25/11 14:35, Jonathan Cameron wrote:
>> We don't have a use case for these. Two drivers appeared to use them
>> but both report all events on the first.
> Silly bug in here as well. It subtracts one from an unsigned before doing a
> comparison. Result is that for some devices, the masklength will end up as 0
> and hence all sorts of fun will occur. Sorry about that, will be fixed in the
> git tree in a few mins.
Where this applies to the next patch not this one. Oops.
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH 2/3] staging:iio: Switch the channel masks to bitmaps so as to allow for more channels.
2011-07-25 13:35 ` [PATCH 2/3] staging:iio: Switch the channel masks to bitmaps so as to allow for more channels Jonathan Cameron
@ 2011-08-18 14:15 ` Jonathan Cameron
0 siblings, 0 replies; 8+ messages in thread
From: Jonathan Cameron @ 2011-08-18 14:15 UTC (permalink / raw)
To: Jonathan Cameron; +Cc: linux-iio
On 07/25/11 14:35, Jonathan Cameron wrote:
> This is as light as possible on changes to current drivers.
> Some drivers make assumptions that their masks fit in a single
> long. Given they were previously working this is clearly valid if
> not tidy.
>
> The max1363 is an example where there should be no such assumptions.
An issue I hadn't previously noted with this patch is that it prevents
setting up default scan modes until after the buffer is registered.
This effects the lis3l02dq driver for starters and probably some others.
I've inserted a warning if this happens. Right answer is just to
move the iio_scan_mask_set calls until after ring registration.
I'll put together a patch that does this unless anyone comes up with
a better solution. For now I'll push a fix that just makes these
calls fail and issues a warning so they are easy to track down.
Thanks,
Jonathan
>
> Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
> ---
> drivers/staging/iio/accel/lis3l02dq_ring.c | 5 +-
> drivers/staging/iio/adc/ad7298_ring.c | 4 +-
> drivers/staging/iio/adc/ad7793.c | 18 ++++--
> drivers/staging/iio/adc/ad7887.h | 4 +-
> drivers/staging/iio/adc/ad7887_ring.c | 10 ++-
> drivers/staging/iio/adc/ad799x.h | 4 +-
> drivers/staging/iio/adc/ad799x_core.c | 2 +-
> drivers/staging/iio/adc/ad799x_ring.c | 18 ++----
> drivers/staging/iio/adc/max1363.h | 8 ++-
> drivers/staging/iio/adc/max1363_core.c | 37 ++++++-----
> drivers/staging/iio/adc/max1363_ring.c | 22 ++++----
> drivers/staging/iio/iio.h | 3 +-
> drivers/staging/iio/imu/adis16400_ring.c | 9 ++-
> drivers/staging/iio/industrialio-ring.c | 91 +++++++++++++++++++++++++++-
> drivers/staging/iio/meter/ade7758.h | 2 +-
> drivers/staging/iio/meter/ade7758_core.c | 2 +-
> drivers/staging/iio/meter/ade7758_ring.c | 2 +-
> drivers/staging/iio/ring_generic.h | 64 ++------------------
> 18 files changed, 172 insertions(+), 133 deletions(-)
>
> diff --git a/drivers/staging/iio/accel/lis3l02dq_ring.c b/drivers/staging/iio/accel/lis3l02dq_ring.c
> index 5c6fe13..82891cb 100644
> --- a/drivers/staging/iio/accel/lis3l02dq_ring.c
> +++ b/drivers/staging/iio/accel/lis3l02dq_ring.c
> @@ -61,8 +61,9 @@ ssize_t lis3l02dq_read_accel_from_ring(struct iio_ring_buffer *ring,
> ret = ring->access->read_last(ring, (u8 *)data);
> if (ret)
> goto error_free_data;
> - *val = data[bitmap_weight(&ring->scan_mask, index)];
> + *val = data[bitmap_weight(ring->scan_mask, index)];
> error_free_data:
> +
> kfree(data);
>
> return ret;
> @@ -99,7 +100,7 @@ static int lis3l02dq_read_all(struct iio_dev *indio_dev, u8 *rx_array)
> mutex_lock(&st->buf_lock);
>
> for (i = 0; i < ARRAY_SIZE(read_all_tx_array)/4; i++)
> - if (ring->scan_mask & (1 << i)) {
> + if (test_bit(i, ring->scan_mask)) {
> /* lower byte */
> xfers[j].tx_buf = st->tx + 2*j;
> st->tx[2*j] = read_all_tx_array[i*4];
> diff --git a/drivers/staging/iio/adc/ad7298_ring.c b/drivers/staging/iio/adc/ad7298_ring.c
> index 741818c..246b2e7 100644
> --- a/drivers/staging/iio/adc/ad7298_ring.c
> +++ b/drivers/staging/iio/adc/ad7298_ring.c
> @@ -24,7 +24,7 @@ int ad7298_scan_from_ring(struct iio_dev *dev_info, long ch)
> int ret;
> u16 *ring_data;
>
> - if (!(ring->scan_mask & (1 << ch))) {
> + if (!(test_bit(ch, ring->scan_mask))) {
> ret = -EBUSY;
> goto error_ret;
> }
> @@ -79,7 +79,7 @@ static int ad7298_ring_preenable(struct iio_dev *indio_dev)
> command = AD7298_WRITE | st->ext_ref;
>
> for (i = 0, m = AD7298_CH(0); i < AD7298_MAX_CHAN; i++, m >>= 1)
> - if (ring->scan_mask & (1 << i))
> + if (test_bit(i, ring->scan_mask))
> command |= m;
>
> st->tx_buf[0] = cpu_to_be16(command);
> diff --git a/drivers/staging/iio/adc/ad7793.c b/drivers/staging/iio/adc/ad7793.c
> index ed993e3..d1f4911 100644
> --- a/drivers/staging/iio/adc/ad7793.c
> +++ b/drivers/staging/iio/adc/ad7793.c
> @@ -51,7 +51,8 @@ struct ad7793_state {
> u16 mode;
> u16 conf;
> u32 scale_avail[8][2];
> - u32 available_scan_masks[7];
> + /* Note this uses fact that 8 the mask always fits in a long */
> + unsigned long available_scan_masks[7];
> /*
> * DMA (thus cache coherency maintenance) requires the
> * transfer buffers to live in their own cache lines.
> @@ -321,7 +322,7 @@ static int ad7793_scan_from_ring(struct ad7793_state *st, unsigned ch, int *val)
> s64 dat64[2];
> u32 *dat32 = (u32 *)dat64;
>
> - if (!(ring->scan_mask & (1 << ch)))
> + if (!(test_bit(ch, ring->scan_mask)))
> return -EBUSY;
>
> ret = ring->access->read_last(ring, (u8 *) &dat64);
> @@ -343,7 +344,8 @@ static int ad7793_ring_preenable(struct iio_dev *indio_dev)
> if (!ring->scan_count)
> return -EINVAL;
>
> - channel = __ffs(ring->scan_mask);
> + channel = find_first_bit(ring->scan_mask,
> + indio_dev->masklength);
>
> d_size = ring->scan_count *
> indio_dev->channels[0].scan_type.storagebits / 8;
> @@ -875,10 +877,12 @@ static int __devinit ad7793_probe(struct spi_device *spi)
> indio_dev->num_channels = 7;
> indio_dev->info = &ad7793_info;
>
> - for (i = 0; i < indio_dev->num_channels; i++)
> - st->available_scan_masks[i] = (1 << i) | (1 <<
> - indio_dev->channels[indio_dev->num_channels - 1].
> - scan_index);
> + for (i = 0; i < indio_dev->num_channels; i++) {
> + set_bit(i, &st->available_scan_masks[i]);
> + set_bit(indio_dev->
> + channels[indio_dev->num_channels - 1].scan_index,
> + &st->available_scan_masks[i]);
> + }
>
> init_waitqueue_head(&st->wq_data_avail);
>
> diff --git a/drivers/staging/iio/adc/ad7887.h b/drivers/staging/iio/adc/ad7887.h
> index 837046c..1b7a772 100644
> --- a/drivers/staging/iio/adc/ad7887.h
> +++ b/drivers/staging/iio/adc/ad7887.h
> @@ -83,11 +83,11 @@ enum ad7887_supported_device_ids {
> };
>
> #ifdef CONFIG_IIO_RING_BUFFER
> -int ad7887_scan_from_ring(struct ad7887_state *st, long mask);
> +int ad7887_scan_from_ring(struct ad7887_state *st, int channum);
> int ad7887_register_ring_funcs_and_init(struct iio_dev *indio_dev);
> void ad7887_ring_cleanup(struct iio_dev *indio_dev);
> #else /* CONFIG_IIO_RING_BUFFER */
> -static inline int ad7887_scan_from_ring(struct ad7887_state *st, long mask)
> +static inline int ad7887_scan_from_ring(struct ad7887_state *st, int channum)
> {
> return 0;
> }
> diff --git a/drivers/staging/iio/adc/ad7887_ring.c b/drivers/staging/iio/adc/ad7887_ring.c
> index 6b3daf4..36e118c 100644
> --- a/drivers/staging/iio/adc/ad7887_ring.c
> +++ b/drivers/staging/iio/adc/ad7887_ring.c
> @@ -19,13 +19,13 @@
>
> #include "ad7887.h"
>
> -int ad7887_scan_from_ring(struct ad7887_state *st, long mask)
> +int ad7887_scan_from_ring(struct ad7887_state *st, int channum)
> {
> struct iio_ring_buffer *ring = iio_priv_to_dev(st)->ring;
> int count = 0, ret;
> u16 *ring_data;
>
> - if (!(ring->scan_mask & mask)) {
> + if (!(test_bit(channum, ring->scan_mask))) {
> ret = -EBUSY;
> goto error_ret;
> }
> @@ -41,7 +41,8 @@ int ad7887_scan_from_ring(struct ad7887_state *st, long mask)
> goto error_free_ring_data;
>
> /* for single channel scan the result is stored with zero offset */
> - if ((ring->scan_mask == ((1 << 1) | (1 << 0))) && (mask == (1 << 1)))
> + if ((test_bit(1, ring->scan_mask) || test_bit(0, ring->scan_mask)) &&
> + (channum == 1))
> count = 1;
>
> ret = be16_to_cpu(ring_data[count]);
> @@ -78,7 +79,8 @@ static int ad7887_ring_preenable(struct iio_dev *indio_dev)
> indio_dev->ring->access->set_bytes_per_datum(indio_dev->ring,
> st->d_size);
>
> - switch (ring->scan_mask) {
> + /* We know this is a single long so can 'cheat' */
> + switch (*ring->scan_mask) {
> case (1 << 0):
> st->ring_msg = &st->msg[AD7887_CH0];
> break;
> diff --git a/drivers/staging/iio/adc/ad799x.h b/drivers/staging/iio/adc/ad799x.h
> index 0dc9b4c..98f06f6 100644
> --- a/drivers/staging/iio/adc/ad799x.h
> +++ b/drivers/staging/iio/adc/ad799x.h
> @@ -124,11 +124,11 @@ struct ad799x_platform_data {
> int ad7997_8_set_scan_mode(struct ad799x_state *st, unsigned mask);
>
> #ifdef CONFIG_AD799X_RING_BUFFER
> -int ad799x_single_channel_from_ring(struct ad799x_state *st, long mask);
> +int ad799x_single_channel_from_ring(struct ad799x_state *st, int channum);
> int ad799x_register_ring_funcs_and_init(struct iio_dev *indio_dev);
> void ad799x_ring_cleanup(struct iio_dev *indio_dev);
> #else /* CONFIG_AD799X_RING_BUFFER */
> -int ad799x_single_channel_from_ring(struct ad799x_state *st, long mask)
> +int ad799x_single_channel_from_ring(struct ad799x_state *st, int channum)
> {
> return -EINVAL;
> }
> diff --git a/drivers/staging/iio/adc/ad799x_core.c b/drivers/staging/iio/adc/ad799x_core.c
> index 11d0add..b7461f0 100644
> --- a/drivers/staging/iio/adc/ad799x_core.c
> +++ b/drivers/staging/iio/adc/ad799x_core.c
> @@ -150,7 +150,7 @@ static int ad799x_read_raw(struct iio_dev *dev_info,
> mutex_lock(&dev_info->mlock);
> if (iio_ring_enabled(dev_info))
> ret = ad799x_single_channel_from_ring(st,
> - 1 << chan->address);
> + chan->address);
> else
> ret = ad799x_scan_direct(st, chan->address);
> mutex_unlock(&dev_info->mlock);
> diff --git a/drivers/staging/iio/adc/ad799x_ring.c b/drivers/staging/iio/adc/ad799x_ring.c
> index 8f1fc52..438e81d 100644
> --- a/drivers/staging/iio/adc/ad799x_ring.c
> +++ b/drivers/staging/iio/adc/ad799x_ring.c
> @@ -23,13 +23,13 @@
>
> #include "ad799x.h"
>
> -int ad799x_single_channel_from_ring(struct ad799x_state *st, long mask)
> +int ad799x_single_channel_from_ring(struct ad799x_state *st, int channum)
> {
> struct iio_ring_buffer *ring = iio_priv_to_dev(st)->ring;
> int count = 0, ret;
> u16 *ring_data;
>
> - if (!(ring->scan_mask & mask)) {
> + if (!(test_bit(channum, ring->scan_mask))) {
> ret = -EBUSY;
> goto error_ret;
> }
> @@ -44,13 +44,7 @@ int ad799x_single_channel_from_ring(struct ad799x_state *st, long mask)
> if (ret)
> goto error_free_ring_data;
> /* Need a count of channels prior to this one */
> - mask >>= 1;
> - while (mask) {
> - if (mask & ring->scan_mask)
> - count++;
> - mask >>= 1;
> - }
> -
> + count = bitmap_weight(ring->scan_mask, channum);
> ret = be16_to_cpu(ring_data[count]);
>
> error_free_ring_data:
> @@ -77,7 +71,7 @@ static int ad799x_ring_preenable(struct iio_dev *indio_dev)
> */
>
> if (st->id == ad7997 || st->id == ad7998)
> - ad7997_8_set_scan_mode(st, ring->scan_mask);
> + ad7997_8_set_scan_mode(st, *ring->scan_mask);
>
> st->d_size = ring->scan_count * 2;
>
> @@ -121,12 +115,12 @@ static irqreturn_t ad799x_trigger_handler(int irq, void *p)
> case ad7991:
> case ad7995:
> case ad7999:
> - cmd = st->config | (ring->scan_mask << AD799X_CHANNEL_SHIFT);
> + cmd = st->config | (*ring->scan_mask << AD799X_CHANNEL_SHIFT);
> break;
> case ad7992:
> case ad7993:
> case ad7994:
> - cmd = (ring->scan_mask << AD799X_CHANNEL_SHIFT) |
> + cmd = (*ring->scan_mask << AD799X_CHANNEL_SHIFT) |
> AD7998_CONV_RES_REG;
> break;
> case ad7997:
> diff --git a/drivers/staging/iio/adc/max1363.h b/drivers/staging/iio/adc/max1363.h
> index 360bfc5..cbcb08a 100644
> --- a/drivers/staging/iio/adc/max1363.h
> +++ b/drivers/staging/iio/adc/max1363.h
> @@ -57,6 +57,7 @@
> #define MAX1363_SCAN_MASK 0x60
> #define MAX1363_SE_DE_MASK 0x01
>
> +#define MAX1363_MAX_CHANNELS 25
> /**
> * struct max1363_mode - scan mode information
> * @conf: The corresponding value of the configuration register
> @@ -64,7 +65,7 @@
> */
> struct max1363_mode {
> int8_t conf;
> - long modemask;
> + DECLARE_BITMAP(modemask, MAX1363_MAX_CHANNELS);
> };
>
> /* This must be maintained along side the max1363_mode_table in max1363_core */
> @@ -145,13 +146,14 @@ struct max1363_state {
> };
>
> const struct max1363_mode
> -*max1363_match_mode(u32 mask, const struct max1363_chip_info *ci);
> +*max1363_match_mode(unsigned long *mask, const struct max1363_chip_info *ci);
>
> int max1363_set_scan_mode(struct max1363_state *st);
>
> #ifdef CONFIG_MAX1363_RING_BUFFER
>
> -int max1363_single_channel_from_ring(long mask, struct max1363_state *st);
> +int max1363_single_channel_from_ring(const long *mask,
> + struct max1363_state *st);
> int max1363_register_ring_funcs_and_init(struct iio_dev *indio_dev);
> void max1363_ring_cleanup(struct iio_dev *indio_dev);
>
> diff --git a/drivers/staging/iio/adc/max1363_core.c b/drivers/staging/iio/adc/max1363_core.c
> index ad2631d..d37d1ca 100644
> --- a/drivers/staging/iio/adc/max1363_core.c
> +++ b/drivers/staging/iio/adc/max1363_core.c
> @@ -41,14 +41,14 @@
> .conf = MAX1363_CHANNEL_SEL(_num) \
> | MAX1363_CONFIG_SCAN_SINGLE_1 \
> | MAX1363_CONFIG_SE, \
> - .modemask = _mask, \
> + .modemask[0] = _mask, \
> }
>
> #define MAX1363_MODE_SCAN_TO_CHANNEL(_num, _mask) { \
> .conf = MAX1363_CHANNEL_SEL(_num) \
> | MAX1363_CONFIG_SCAN_TO_CS \
> | MAX1363_CONFIG_SE, \
> - .modemask = _mask, \
> + .modemask[0] = _mask, \
> }
>
> /* note not available for max1363 hence naming */
> @@ -56,14 +56,14 @@
> .conf = MAX1363_CHANNEL_SEL(_num) \
> | MAX1236_SCAN_MID_TO_CHANNEL \
> | MAX1363_CONFIG_SE, \
> - .modemask = _mask \
> + .modemask[0] = _mask \
> }
>
> #define MAX1363_MODE_DIFF_SINGLE(_nump, _numm, _mask) { \
> .conf = MAX1363_CHANNEL_SEL(_nump) \
> | MAX1363_CONFIG_SCAN_SINGLE_1 \
> | MAX1363_CONFIG_DE, \
> - .modemask = _mask \
> + .modemask[0] = _mask \
> }
>
> /* Can't think how to automate naming so specify for now */
> @@ -71,7 +71,7 @@
> .conf = MAX1363_CHANNEL_SEL(_num) \
> | MAX1363_CONFIG_SCAN_TO_CS \
> | MAX1363_CONFIG_DE, \
> - .modemask = _mask \
> + .modemask[0] = _mask \
> }
>
> /* note only available for max1363 hence naming */
> @@ -79,7 +79,7 @@
> .conf = MAX1363_CHANNEL_SEL(_num) \
> | MAX1236_SCAN_MID_TO_CHANNEL \
> | MAX1363_CONFIG_SE, \
> - .modemask = _mask \
> + .modemask[0] = _mask \
> }
>
> static const struct max1363_mode max1363_mode_table[] = {
> @@ -146,13 +146,15 @@ static const struct max1363_mode max1363_mode_table[] = {
> };
>
> const struct max1363_mode
> -*max1363_match_mode(u32 mask, const struct max1363_chip_info *ci)
> +*max1363_match_mode(unsigned long *mask, const struct max1363_chip_info *ci)
> {
> int i;
> if (mask)
> for (i = 0; i < ci->num_modes; i++)
> - if (!((~max1363_mode_table[ci->mode_list[i]].modemask) &
> - mask))
> + if (bitmap_subset(mask,
> + max1363_mode_table[ci->mode_list[i]].
> + modemask,
> + MAX1363_MAX_CHANNELS))
> return &max1363_mode_table[ci->mode_list[i]];
> return NULL;
> }
> @@ -186,7 +188,7 @@ static int max1363_read_single_chan(struct iio_dev *indio_dev,
> int ret = 0;
> s32 data;
> char rxbuf[2];
> - long mask;
> + const unsigned long *mask;
> struct max1363_state *st = iio_priv(indio_dev);
> struct i2c_client *client = st->client;
>
> @@ -643,7 +645,7 @@ static int max1363_monitor_mode_update(struct max1363_state *st, int enabled)
> int ret, i = 3, j;
> unsigned long numelements;
> int len;
> - long modemask;
> + const long *modemask;
>
> if (!enabled) {
> /* transition to ring capture is not currently supported */
> @@ -671,7 +673,7 @@ static int max1363_monitor_mode_update(struct max1363_state *st, int enabled)
> st->configbyte |= max1363_mode_table[d1m0to3m2].conf;
> modemask = max1363_mode_table[d1m0to3m2].modemask;
> }
> - numelements = hweight_long(modemask);
> + numelements = bitmap_weight(modemask, MAX1363_MAX_CHANNELS);
> len = 3 * numelements + 3;
> tx_buf = kmalloc(len, GFP_KERNEL);
> if (!tx_buf) {
> @@ -687,7 +689,7 @@ static int max1363_monitor_mode_update(struct max1363_state *st, int enabled)
> * setup to match what we need.
> */
> for (j = 0; j < 8; j++)
> - if (modemask & (1 << j)) {
> + if (test_bit(j, modemask)) {
> /* Establish the mode is in the scan */
> if (st->mask_low & (1 << j)) {
> tx_buf[i] = (st->thresh_low[j] >> 4) & 0xFF;
> @@ -1280,7 +1282,7 @@ static int __devinit max1363_probe(struct i2c_client *client,
> st->client = client;
>
> indio_dev->available_scan_masks
> - = kzalloc(sizeof(*indio_dev->available_scan_masks)*
> + = kzalloc(BITS_TO_LONGS(MAX1363_MAX_CHANNELS)*
> (st->chip_info->num_modes + 1), GFP_KERNEL);
> if (!indio_dev->available_scan_masks) {
> ret = -ENOMEM;
> @@ -1288,9 +1290,10 @@ static int __devinit max1363_probe(struct i2c_client *client,
> }
>
> for (i = 0; i < st->chip_info->num_modes; i++)
> - indio_dev->available_scan_masks[i] =
> - max1363_mode_table[st->chip_info->mode_list[i]]
> - .modemask;
> + bitmap_copy(indio_dev->available_scan_masks +
> + BITS_TO_LONGS(MAX1363_MAX_CHANNELS)*i,
> + max1363_mode_table[st->chip_info->mode_list[i]]
> + .modemask, MAX1363_MAX_CHANNELS);
> /* Estabilish that the iio_dev is a child of the i2c device */
> indio_dev->dev.parent = &client->dev;
> indio_dev->name = id->name;
> diff --git a/drivers/staging/iio/adc/max1363_ring.c b/drivers/staging/iio/adc/max1363_ring.c
> index be601e0..abe9e03 100644
> --- a/drivers/staging/iio/adc/max1363_ring.c
> +++ b/drivers/staging/iio/adc/max1363_ring.c
> @@ -21,12 +21,14 @@
>
> #include "max1363.h"
>
> -int max1363_single_channel_from_ring(long mask, struct max1363_state *st)
> +int max1363_single_channel_from_ring(const long *mask, struct max1363_state *st)
> {
> struct iio_ring_buffer *ring = iio_priv_to_dev(st)->ring;
> - int count = 0, ret;
> + int count = 0, ret, index;
> u8 *ring_data;
> - if (!(st->current_mode->modemask & mask)) {
> + index = find_first_bit(mask, MAX1363_MAX_CHANNELS);
> +
> + if (!(test_bit(index, st->current_mode->modemask))) {
> ret = -EBUSY;
> goto error_ret;
> }
> @@ -41,12 +43,8 @@ int max1363_single_channel_from_ring(long mask, struct max1363_state *st)
> if (ret)
> goto error_free_ring_data;
> /* Need a count of channels prior to this one */
> - mask >>= 1;
> - while (mask) {
> - if (mask & st->current_mode->modemask)
> - count++;
> - mask >>= 1;
> - }
> +
> + count = bitmap_weight(mask, index - 1);
> if (st->chip_info->bits != 8)
> ret = ((int)(ring_data[count*2 + 0] & 0x0F) << 8)
> + (int)(ring_data[count*2 + 1]);
> @@ -85,7 +83,8 @@ static int max1363_ring_preenable(struct iio_dev *indio_dev)
>
> max1363_set_scan_mode(st);
>
> - numvals = hweight_long(st->current_mode->modemask);
> + numvals = bitmap_weight(st->current_mode->modemask,
> + indio_dev->masklength);
> if (ring->access->set_bytes_per_datum) {
> if (ring->scan_timestamp)
> d_size += sizeof(s64);
> @@ -110,7 +109,8 @@ static irqreturn_t max1363_trigger_handler(int irq, void *p)
> __u8 *rxbuf;
> int b_sent;
> size_t d_size;
> - unsigned long numvals = hweight_long(st->current_mode->modemask);
> + unsigned long numvals = bitmap_weight(st->current_mode->modemask,
> + MAX1363_MAX_CHANNELS);
>
> /* Ensure the timestamp is 8 byte aligned */
> if (st->chip_info->bits != 8)
> diff --git a/drivers/staging/iio/iio.h b/drivers/staging/iio/iio.h
> index 480b4d0..5854f4a 100644
> --- a/drivers/staging/iio/iio.h
> +++ b/drivers/staging/iio/iio.h
> @@ -298,7 +298,8 @@ struct iio_dev {
> struct iio_ring_buffer *ring;
> struct mutex mlock;
>
> - u32 *available_scan_masks;
> + unsigned long *available_scan_masks;
> + unsigned masklength;
> struct iio_trigger *trig;
> struct iio_poll_func *pollfunc;
>
> diff --git a/drivers/staging/iio/imu/adis16400_ring.c b/drivers/staging/iio/imu/adis16400_ring.c
> index 3fc2403..1a47d07 100644
> --- a/drivers/staging/iio/imu/adis16400_ring.c
> +++ b/drivers/staging/iio/imu/adis16400_ring.c
> @@ -85,7 +85,7 @@ static int adis16350_spi_read_all(struct device *dev, u8 *rx)
> return -ENOMEM;
>
> for (i = 0; i < ARRAY_SIZE(read_all_tx_array); i++)
> - if (indio_dev->ring->scan_mask & (1 << i)) {
> + if (test_bit(i, indio_dev->ring->scan_mask)) {
> xfers[j].tx_buf = &read_all_tx_array[i];
> xfers[j].bits_per_word = 16;
> xfers[j].len = 2;
> @@ -117,7 +117,8 @@ static irqreturn_t adis16400_trigger_handler(int irq, void *p)
> int i = 0, j, ret = 0;
> s16 *data;
> size_t datasize = ring->access->get_bytes_per_datum(ring);
> - unsigned long mask = ring->scan_mask;
> + /* Asumption that long is enough for maximum channels */
> + unsigned long mask = *ring->scan_mask;
>
> data = kmalloc(datasize , GFP_KERNEL);
> if (data == NULL) {
> @@ -189,8 +190,8 @@ int adis16400_configure_ring(struct iio_dev *indio_dev)
> ring->scan_timestamp = true;
> ring->setup_ops = &adis16400_ring_setup_ops;
> ring->owner = THIS_MODULE;
> - /* Set default scan mode */
> - ring->scan_mask = st->variant->default_scan_mask;
> + /* Set default scan mode - assumes single long is big enough */
> + *ring->scan_mask = st->variant->default_scan_mask;
> ring->scan_count = hweight_long(st->variant->default_scan_mask);
>
> indio_dev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time,
> diff --git a/drivers/staging/iio/industrialio-ring.c b/drivers/staging/iio/industrialio-ring.c
> index 1607293..40c3b3e 100644
> --- a/drivers/staging/iio/industrialio-ring.c
> +++ b/drivers/staging/iio/industrialio-ring.c
> @@ -118,9 +118,7 @@ static ssize_t iio_scan_el_show(struct device *dev,
>
> static int iio_scan_mask_clear(struct iio_ring_buffer *ring, int bit)
> {
> - if (bit > IIO_MAX_SCAN_LENGTH)
> - return -EINVAL;
> - ring->scan_mask &= ~(1 << bit);
> + clear_bit(bit, ring->scan_mask);
> ring->scan_count--;
> return 0;
> }
> @@ -309,11 +307,21 @@ int iio_ring_buffer_register_ex(struct iio_dev *indio_dev, int id,
> if (channels) {
> /* new magic */
> for (i = 0; i < num_channels; i++) {
> + /* Establish necessary mask length */
> + if (channels[i].scan_index > indio_dev->masklength - 1)
> + indio_dev->masklength
> + = indio_dev->channels[i].scan_index + 1;
> +
> ret = iio_ring_add_channel_sysfs(indio_dev,
> &channels[i]);
> if (ret < 0)
> goto error_cleanup_group;
> }
> + if (indio_dev->masklength)
> + ring->scan_mask
> + = kzalloc(sizeof(*ring->scan_mask)*
> + BITS_TO_LONGS(indio_dev->masklength),
> + GFP_KERNEL);
> }
>
> return 0;
> @@ -329,6 +337,7 @@ EXPORT_SYMBOL(iio_ring_buffer_register_ex);
>
> void iio_ring_buffer_unregister(struct iio_dev *indio_dev)
> {
> + kfree(indio_dev->ring->scan_mask);
> if (indio_dev->ring->attrs)
> sysfs_remove_group(&indio_dev->dev.kobj,
> indio_dev->ring->attrs);
> @@ -525,3 +534,79 @@ int iio_sw_ring_preenable(struct iio_dev *indio_dev)
> return 0;
> }
> EXPORT_SYMBOL(iio_sw_ring_preenable);
> +
> +
> +/* note NULL used as error indicator as it doesn't make sense. */
> +static unsigned long *iio_scan_mask_match(unsigned long *av_masks,
> + unsigned int masklength,
> + unsigned long *mask)
> +{
> + if (bitmap_empty(mask, masklength))
> + return NULL;
> + while (*av_masks) {
> + if (bitmap_subset(mask, av_masks, masklength))
> + return av_masks;
> + av_masks += BITS_TO_LONGS(masklength);
> + }
> + return NULL;
> +}
> +
> +/**
> + * iio_scan_mask_set() - set particular bit in the scan mask
> + * @ring: the ring buffer whose scan mask we are interested in
> + * @bit: the bit to be set.
> + **/
> +int iio_scan_mask_set(struct iio_ring_buffer *ring, int bit)
> +{
> + struct iio_dev *dev_info = ring->indio_dev;
> + unsigned long *mask;
> + unsigned long *trialmask;
> +
> + trialmask = kmalloc(sizeof(*trialmask)*
> + BITS_TO_LONGS(dev_info->masklength),
> + GFP_KERNEL);
> +
> + if (trialmask == NULL)
> + return -ENOMEM;
> +
> + bitmap_copy(trialmask, ring->scan_mask, dev_info->masklength);
> + set_bit(bit, trialmask);
> +
> + if (dev_info->available_scan_masks) {
> + mask = iio_scan_mask_match(dev_info->available_scan_masks,
> + dev_info->masklength,
> + trialmask);
> + if (!mask)
> + return -EINVAL;
> + }
> + bitmap_copy(ring->scan_mask, trialmask, dev_info->masklength);
> + ring->scan_count++;
> +
> + kfree(trialmask);
> +
> + return 0;
> +};
> +EXPORT_SYMBOL_GPL(iio_scan_mask_set);
> +
> +int iio_scan_mask_query(struct iio_ring_buffer *ring, int bit)
> +{
> + struct iio_dev *dev_info = ring->indio_dev;
> + long *mask;
> +
> + if (bit > dev_info->masklength)
> + return -EINVAL;
> +
> + if (!ring->scan_mask)
> + return 0;
> + if (dev_info->available_scan_masks)
> + mask = iio_scan_mask_match(dev_info->available_scan_masks,
> + dev_info->masklength,
> + ring->scan_mask);
> + else
> + mask = ring->scan_mask;
> + if (!mask)
> + return 0;
> +
> + return test_bit(bit, mask);
> +};
> +EXPORT_SYMBOL_GPL(iio_scan_mask_query);
> diff --git a/drivers/staging/iio/meter/ade7758.h b/drivers/staging/iio/meter/ade7758.h
> index 4d73e1a..20a2bca 100644
> --- a/drivers/staging/iio/meter/ade7758.h
> +++ b/drivers/staging/iio/meter/ade7758.h
> @@ -122,7 +122,7 @@ struct ade7758_state {
> u8 *tx;
> u8 *rx;
> struct mutex buf_lock;
> - u32 available_scan_masks[AD7758_NUM_WAVESRC];
> + unsigned long available_scan_masks[AD7758_NUM_WAVESRC];
> struct iio_chan_spec *ade7758_ring_channels;
> struct spi_transfer ring_xfer[4];
> struct spi_message ring_msg;
> diff --git a/drivers/staging/iio/meter/ade7758_core.c b/drivers/staging/iio/meter/ade7758_core.c
> index ce2d156..5270a10 100644
> --- a/drivers/staging/iio/meter/ade7758_core.c
> +++ b/drivers/staging/iio/meter/ade7758_core.c
> @@ -766,7 +766,7 @@ static int __devinit ade7758_probe(struct spi_device *spi)
> indio_dev->modes = INDIO_DIRECT_MODE;
>
> for (i = 0; i < AD7758_NUM_WAVESRC; i++)
> - st->available_scan_masks[i] = 1 << i;
> + set_bit(i, &st->available_scan_masks[i]);
>
> indio_dev->available_scan_masks = st->available_scan_masks;
>
> diff --git a/drivers/staging/iio/meter/ade7758_ring.c b/drivers/staging/iio/meter/ade7758_ring.c
> index 5e740e3..9934f50 100644
> --- a/drivers/staging/iio/meter/ade7758_ring.c
> +++ b/drivers/staging/iio/meter/ade7758_ring.c
> @@ -98,7 +98,7 @@ static int ade7758_ring_preenable(struct iio_dev *indio_dev)
> if (!ring->scan_count)
> return -EINVAL;
>
> - channel = __ffs(ring->scan_mask);
> + channel = find_first_bit(ring->scan_mask, indio_dev->masklength);
>
> d_size = st->ade7758_ring_channels[channel].scan_type.storagebits / 8;
>
> diff --git a/drivers/staging/iio/ring_generic.h b/drivers/staging/iio/ring_generic.h
> index db8d0d1..7e1beee 100644
> --- a/drivers/staging/iio/ring_generic.h
> +++ b/drivers/staging/iio/ring_generic.h
> @@ -101,7 +101,7 @@ struct iio_ring_buffer {
> int bpe;
> struct attribute_group *scan_el_attrs;
> int scan_count;
> - unsigned long scan_mask;
> + long *scan_mask;
> bool scan_timestamp;
> const struct iio_ring_access_funcs *access;
> const struct iio_ring_setup_ops *setup_ops;
> @@ -121,6 +121,8 @@ struct iio_ring_buffer {
> void iio_ring_buffer_init(struct iio_ring_buffer *ring,
> struct iio_dev *dev_info);
>
> +void iio_ring_buffer_deinit(struct iio_ring_buffer *ring);
> +
> /**
> * __iio_update_ring_buffer() - update common elements of ring buffers
> * @ring: ring buffer that is the event source
> @@ -134,70 +136,14 @@ static inline void __iio_update_ring_buffer(struct iio_ring_buffer *ring,
> ring->length = length;
> }
>
> -/*
> - * These are mainly provided to allow for a change of implementation if a device
> - * has a large number of scan elements
> - */
> -#define IIO_MAX_SCAN_LENGTH 31
> -
> -/* note 0 used as error indicator as it doesn't make sense. */
> -static inline u32 iio_scan_mask_match(u32 *av_masks, u32 mask)
> -{
> - while (*av_masks) {
> - if (!(~*av_masks & mask))
> - return *av_masks;
> - av_masks++;
> - }
> - return 0;
> -}
> -
> -static inline int iio_scan_mask_query(struct iio_ring_buffer *ring, int bit)
> -{
> - struct iio_dev *dev_info = ring->indio_dev;
> - u32 mask;
> -
> - if (bit > IIO_MAX_SCAN_LENGTH)
> - return -EINVAL;
> -
> - if (!ring->scan_mask)
> - return 0;
> -
> - if (dev_info->available_scan_masks)
> - mask = iio_scan_mask_match(dev_info->available_scan_masks,
> - ring->scan_mask);
> - else
> - mask = ring->scan_mask;
> -
> - if (!mask)
> - return -EINVAL;
> -
> - return !!(mask & (1 << bit));
> -};
> +int iio_scan_mask_query(struct iio_ring_buffer *ring, int bit);
>
> /**
> * iio_scan_mask_set() - set particular bit in the scan mask
> * @ring: the ring buffer whose scan mask we are interested in
> * @bit: the bit to be set.
> **/
> -static inline int iio_scan_mask_set(struct iio_ring_buffer *ring, int bit)
> -{
> - struct iio_dev *dev_info = ring->indio_dev;
> - u32 mask;
> - u32 trialmask = ring->scan_mask | (1 << bit);
> -
> - if (bit > IIO_MAX_SCAN_LENGTH)
> - return -EINVAL;
> - if (dev_info->available_scan_masks) {
> - mask = iio_scan_mask_match(dev_info->available_scan_masks,
> - trialmask);
> - if (!mask)
> - return -EINVAL;
> - }
> - ring->scan_mask = trialmask;
> - ring->scan_count++;
> -
> - return 0;
> -};
> +int iio_scan_mask_set(struct iio_ring_buffer *ring, int bit);
>
> #define to_iio_ring_buffer(d) \
> container_of(d, struct iio_ring_buffer, dev)
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2011-08-18 14:15 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-07-25 13:35 [PATCH 0/3] blue part 7: IIO Allow for more channels Jonathan Cameron
2011-07-25 13:35 ` [PATCH 1/3] staging:iio: remove broken support for multiple event interfaces Jonathan Cameron
2011-07-26 9:04 ` Hennerich, Michael
2011-07-29 17:17 ` Jonathan Cameron
2011-07-29 17:18 ` Jonathan Cameron
2011-07-25 13:35 ` [PATCH 2/3] staging:iio: Switch the channel masks to bitmaps so as to allow for more channels Jonathan Cameron
2011-08-18 14:15 ` Jonathan Cameron
2011-07-25 13:35 ` [PATCH 3/3] staging:iio:events - new 64 bit code structure and push out drivers Jonathan Cameron
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