From: Lars-Peter Clausen Date: Mon, 7 Oct 2013 14:11:00 +0000 (+0100) Subject: staging:iio:ad7291: Switch to new event config interface X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=b80a674b8d52e75cb2be3ac9e65cf51d218798df;p=linux-beck.git staging:iio:ad7291: Switch to new event config interface Switch the ad7291 driver to the new IIO event config interface as the old one is going to be removed. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron --- diff --git a/drivers/staging/iio/adc/ad7291.c b/drivers/staging/iio/adc/ad7291.c index 1dae1efe41c7..be4d93a61ae7 100644 --- a/drivers/staging/iio/adc/ad7291.c +++ b/drivers/staging/iio/adc/ad7291.c @@ -248,13 +248,14 @@ static struct attribute *ad7291_event_attributes[] = { NULL, }; -static unsigned int ad7291_threshold_reg(u64 event_code) +static unsigned int ad7291_threshold_reg(const struct iio_chan_spec *chan, + enum iio_event_direction dir) { unsigned int offset; - switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) { + switch (chan->type) { case IIO_VOLTAGE: - offset = IIO_EVENT_CODE_EXTRACT_CHAN(event_code); + offset = chan->channel; break; case IIO_TEMP: offset = 8; @@ -263,43 +264,49 @@ static unsigned int ad7291_threshold_reg(u64 event_code) return 0; } - if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) == IIO_EV_DIR_FALLING) + if (dir == IIO_EV_DIR_FALLING) return AD7291_DATA_LOW(offset); else return AD7291_DATA_HIGH(offset); } static int ad7291_read_event_value(struct iio_dev *indio_dev, - u64 event_code, - int *val) + const struct iio_chan_spec *chan, + enum iio_event_type type, + enum iio_event_direction dir, + enum iio_event_info info, + int *val, int *val2) { struct ad7291_chip_info *chip = iio_priv(indio_dev); int ret; u16 uval; - ret = ad7291_i2c_read(chip, ad7291_threshold_reg(event_code), &uval); + ret = ad7291_i2c_read(chip, ad7291_threshold_reg(chan, dir), &uval); if (ret < 0) return ret; - switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) { + switch (chan->type) { case IIO_VOLTAGE: *val = uval & AD7291_VALUE_MASK; - return 0; + return IIO_VAL_INT; case IIO_TEMP: *val = sign_extend32(uval, 11); - return 0; + return IIO_VAL_INT; default: return -EINVAL; }; } static int ad7291_write_event_value(struct iio_dev *indio_dev, - u64 event_code, - int val) + const struct iio_chan_spec *chan, + enum iio_event_type type, + enum iio_event_direction dir, + enum iio_event_info info, + int val, int val2) { struct ad7291_chip_info *chip = iio_priv(indio_dev); - switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) { + switch (chan->type) { case IIO_VOLTAGE: if (val > AD7291_VALUE_MASK || val < 0) return -EINVAL; @@ -312,20 +319,21 @@ static int ad7291_write_event_value(struct iio_dev *indio_dev, return -EINVAL; } - return ad7291_i2c_write(chip, ad7291_threshold_reg(event_code), val); + return ad7291_i2c_write(chip, ad7291_threshold_reg(chan, dir), val); } static int ad7291_read_event_config(struct iio_dev *indio_dev, - u64 event_code) + const struct iio_chan_spec *chan, + enum iio_event_type type, + enum iio_event_direction dir) { struct ad7291_chip_info *chip = iio_priv(indio_dev); /* To be enabled the channel must simply be on. If any are enabled we are in continuous sampling mode */ - switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) { + switch (chan->type) { case IIO_VOLTAGE: - if (chip->c_mask & - (1 << (15 - IIO_EVENT_CODE_EXTRACT_CHAN(event_code)))) + if (chip->c_mask & (1 << (15 - chan->channel))) return 1; else return 0; @@ -339,11 +347,14 @@ static int ad7291_read_event_config(struct iio_dev *indio_dev, } static int ad7291_write_event_config(struct iio_dev *indio_dev, - u64 event_code, + const struct iio_chan_spec *chan, + enum iio_event_type type, + enum iio_event_direction dir, int state) { int ret = 0; struct ad7291_chip_info *chip = iio_priv(indio_dev); + unsigned int mask; u16 regval; mutex_lock(&chip->state_lock); @@ -354,16 +365,14 @@ static int ad7291_write_event_config(struct iio_dev *indio_dev, * Possible to disable temp as well but that makes single read tricky. */ - switch (IIO_EVENT_CODE_EXTRACT_TYPE(event_code)) { + mask = BIT(15 - chan->channel); + + switch (chan->type) { case IIO_VOLTAGE: - if ((!state) && (chip->c_mask & (1 << (15 - - IIO_EVENT_CODE_EXTRACT_CHAN(event_code))))) - chip->c_mask &= ~(1 << (15 - IIO_EVENT_CODE_EXTRACT_CHAN - (event_code))); - else if (state && (!(chip->c_mask & (1 << (15 - - IIO_EVENT_CODE_EXTRACT_CHAN(event_code)))))) - chip->c_mask |= (1 << (15 - IIO_EVENT_CODE_EXTRACT_CHAN - (event_code))); + if ((!state) && (chip->c_mask & mask)) + chip->c_mask &= ~mask; + else if (state && (!(chip->c_mask & mask))) + chip->c_mask |= mask; else break; @@ -473,6 +482,20 @@ static int ad7291_read_raw(struct iio_dev *indio_dev, } } +static const struct iio_event_spec ad7291_events[] = { + { + .type = IIO_EV_TYPE_THRESH, + .dir = IIO_EV_DIR_RISING, + .mask_separate = BIT(IIO_EV_INFO_VALUE) | + BIT(IIO_EV_INFO_ENABLE), + }, { + .type = IIO_EV_TYPE_THRESH, + .dir = IIO_EV_DIR_FALLING, + .mask_separate = BIT(IIO_EV_INFO_VALUE) | + BIT(IIO_EV_INFO_ENABLE), + }, +}; + #define AD7291_VOLTAGE_CHAN(_chan) \ { \ .type = IIO_VOLTAGE, \ @@ -480,8 +503,8 @@ static int ad7291_read_raw(struct iio_dev *indio_dev, .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \ .indexed = 1, \ .channel = _chan, \ - .event_mask = IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING)|\ - IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING) \ + .event_spec = ad7291_events, \ + .num_event_specs = ARRAY_SIZE(ad7291_events), \ } static const struct iio_chan_spec ad7291_channels[] = { @@ -500,9 +523,8 @@ static const struct iio_chan_spec ad7291_channels[] = { BIT(IIO_CHAN_INFO_SCALE), .indexed = 1, .channel = 0, - .event_mask = - IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING)| - IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING) + .event_spec = ad7291_events, + .num_event_specs = ARRAY_SIZE(ad7291_events), } }; @@ -512,10 +534,10 @@ static struct attribute_group ad7291_event_attribute_group = { static const struct iio_info ad7291_info = { .read_raw = &ad7291_read_raw, - .read_event_config = &ad7291_read_event_config, - .write_event_config = &ad7291_write_event_config, - .read_event_value = &ad7291_read_event_value, - .write_event_value = &ad7291_write_event_value, + .read_event_config_new = &ad7291_read_event_config, + .write_event_config_new = &ad7291_write_event_config, + .read_event_value_new = &ad7291_read_event_value, + .write_event_value_new = &ad7291_write_event_value, .event_attrs = &ad7291_event_attribute_group, .driver_module = THIS_MODULE, };