mirror of https://gitee.com/openkylin/linux.git
staging:iio:light:tsl2563: chan_spec based channel setup.
Makes a small interface change by splitting event _en attr in two. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jonathan Cameron
Greg Kroah-Hartman
parent
845bd12ac7
commit
cbcdf4dd4f
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@ -464,31 +464,6 @@ static unsigned int adc_to_lux(u32 adc0, u32 adc1)
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/* Sysfs interface */
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/*--------------------------------------------------------------*/
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static ssize_t tsl2563_adc_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct tsl2563_chip *chip = iio_priv(dev_get_drvdata(dev));
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struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
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int ret;
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mutex_lock(&chip->lock);
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ret = tsl2563_get_adc(chip);
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if (ret)
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goto out;
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switch (this_attr->address) {
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case 0:
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ret = snprintf(buf, PAGE_SIZE, "%d\n", chip->data0);
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break;
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case 1:
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ret = snprintf(buf, PAGE_SIZE, "%d\n", chip->data1);
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break;
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}
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out:
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mutex_unlock(&chip->lock);
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return ret;
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}
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/* Apply calibration coefficient to ADC count. */
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static u32 calib_adc(u32 adc, u32 calib)
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@ -501,179 +476,137 @@ static u32 calib_adc(u32 adc, u32 calib)
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return (u32) scaled;
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}
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static ssize_t tsl2563_lux_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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static int tsl2563_write_raw(struct iio_dev *indio_dev,
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struct iio_chan_spec const *chan,
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int val,
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int val2,
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long mask)
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{
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struct tsl2563_chip *chip = iio_priv(dev_get_drvdata(dev));
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struct tsl2563_chip *chip = iio_priv(indio_dev);
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if (chan->channel == 0)
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chip->calib0 = calib_from_sysfs(val);
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else
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chip->calib1 = calib_from_sysfs(val);
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return 0;
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}
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static int tsl2563_read_raw(struct iio_dev *indio_dev,
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struct iio_chan_spec const *chan,
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int *val,
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int *val2,
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long m)
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{
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int ret = -EINVAL;
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u32 calib0, calib1;
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int ret;
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struct tsl2563_chip *chip = iio_priv(indio_dev);
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mutex_lock(&chip->lock);
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switch (m) {
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case 0:
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switch (chan->type) {
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case IIO_LIGHT:
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ret = tsl2563_get_adc(chip);
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if (ret)
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goto out;
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calib0 = calib_adc(chip->data0, chip->calib0) * chip->cover_comp_gain;
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calib1 = calib_adc(chip->data1, chip->calib1) * chip->cover_comp_gain;
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ret = snprintf(buf, PAGE_SIZE, "%d\n", adc_to_lux(calib0, calib1));
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out:
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mutex_unlock(&chip->lock);
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return ret;
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}
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static ssize_t format_calib(char *buf, int len, u32 calib)
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{
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return snprintf(buf, PAGE_SIZE, "%d\n", calib_to_sysfs(calib));
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}
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static ssize_t tsl2563_calib_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct tsl2563_chip *chip = iio_priv(dev_get_drvdata(dev));
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struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
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int ret;
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mutex_lock(&chip->lock);
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switch (this_attr->address) {
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case 0:
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ret = format_calib(buf, PAGE_SIZE, chip->calib0);
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goto error_ret;
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calib0 = calib_adc(chip->data0, chip->calib0) *
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chip->cover_comp_gain;
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calib1 = calib_adc(chip->data1, chip->calib1) *
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chip->cover_comp_gain;
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*val = adc_to_lux(calib0, calib1);
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ret = IIO_VAL_INT;
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break;
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case 1:
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ret = format_calib(buf, PAGE_SIZE, chip->calib1);
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break;
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default:
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ret = -ENODEV;
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}
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mutex_unlock(&chip->lock);
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return ret;
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}
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static ssize_t tsl2563_calib_store(struct device *dev,
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struct device_attribute *attr,
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const char *buf, size_t len)
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{
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struct tsl2563_chip *chip = iio_priv(dev_get_drvdata(dev));
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struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
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int value;
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u32 calib;
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if (1 != sscanf(buf, "%d", &value))
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return -EINVAL;
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calib = calib_from_sysfs(value);
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switch (this_attr->address) {
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case 0:
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chip->calib0 = calib;
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break;
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case 1:
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chip->calib1 = calib;
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break;
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}
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return len;
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}
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static IIO_DEVICE_ATTR(intensity0_both_raw, S_IRUGO,
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tsl2563_adc_show, NULL, 0);
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static IIO_DEVICE_ATTR(intensity1_ir_raw, S_IRUGO,
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tsl2563_adc_show, NULL, 1);
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static DEVICE_ATTR(illuminance0_input, S_IRUGO, tsl2563_lux_show, NULL);
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static IIO_DEVICE_ATTR(intensity0_both_calibgain, S_IRUGO | S_IWUSR,
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tsl2563_calib_show, tsl2563_calib_store, 0);
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static IIO_DEVICE_ATTR(intensity1_ir_calibgain, S_IRUGO | S_IWUSR,
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tsl2563_calib_show, tsl2563_calib_store, 1);
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static ssize_t tsl2563_show_name(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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{
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struct tsl2563_chip *chip = iio_priv(dev_get_drvdata(dev));
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return sprintf(buf, "%s\n", chip->client->name);
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}
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static DEVICE_ATTR(name, S_IRUGO, tsl2563_show_name, NULL);
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static struct attribute *tsl2563_attributes[] = {
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&iio_dev_attr_intensity0_both_raw.dev_attr.attr,
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&iio_dev_attr_intensity1_ir_raw.dev_attr.attr,
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&dev_attr_illuminance0_input.attr,
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&iio_dev_attr_intensity0_both_calibgain.dev_attr.attr,
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&iio_dev_attr_intensity1_ir_calibgain.dev_attr.attr,
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&dev_attr_name.attr,
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NULL
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};
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static const struct attribute_group tsl2563_group = {
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.attrs = tsl2563_attributes,
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};
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static ssize_t tsl2563_read_thresh(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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{
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struct tsl2563_chip *chip = iio_priv(dev_get_drvdata(dev));
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struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
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u16 val = 0;
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switch (this_attr->address) {
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case TSL2563_REG_HIGHLOW:
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val = chip->high_thres;
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break;
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case TSL2563_REG_LOWLOW:
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val = chip->low_thres;
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break;
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}
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return snprintf(buf, PAGE_SIZE, "%d\n", val);
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}
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static ssize_t tsl2563_write_thresh(struct device *dev,
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struct device_attribute *attr,
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const char *buf,
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size_t len)
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{
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struct tsl2563_chip *chip = iio_priv(dev_get_drvdata(dev));
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struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
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unsigned long val;
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int ret;
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ret = strict_strtoul(buf, 10, &val);
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if (ret)
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return ret;
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mutex_lock(&chip->lock);
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ret = tsl2563_write(chip->client, this_attr->address, val & 0xFF);
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case IIO_INTENSITY:
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ret = tsl2563_get_adc(chip);
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if (ret)
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goto error_ret;
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ret = tsl2563_write(chip->client, this_attr->address + 1,
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(val >> 8) & 0xFF);
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switch (this_attr->address) {
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case TSL2563_REG_HIGHLOW:
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chip->high_thres = val;
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if (chan->channel == 0)
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*val = chip->data0;
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else
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*val = chip->data1;
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ret = IIO_VAL_INT;
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break;
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case TSL2563_REG_LOWLOW:
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chip->low_thres = val;
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default:
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break;
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}
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break;
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case (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE):
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if (chan->channel == 0)
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*val = calib_to_sysfs(chip->calib0);
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else
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*val = calib_to_sysfs(chip->calib1);
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ret = IIO_VAL_INT;
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break;
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default:
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return -EINVAL;
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}
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error_ret:
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mutex_unlock(&chip->lock);
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return ret < 0 ? ret : len;
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return ret;
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}
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static IIO_DEVICE_ATTR(intensity0_both_raw_thresh_rising_value,
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S_IRUGO | S_IWUSR,
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tsl2563_read_thresh,
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tsl2563_write_thresh,
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TSL2563_REG_HIGHLOW);
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static const struct iio_chan_spec tsl2563_channels[] = {
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IIO_CHAN(IIO_LIGHT, 0, 1, 1, NULL, 0, 0, 0, 0, 0, {}, 0),
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IIO_CHAN(IIO_INTENSITY, 1, 1, 0, "both", 0,
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(1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE), 0, 0, 0, {},
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IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING) |
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IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING)),
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IIO_CHAN(IIO_INTENSITY, 1, 1, 0, "ir", 1,
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(1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE), 0, 0, 0, {},
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0)
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};
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static IIO_DEVICE_ATTR(intensity0_both_raw_thresh_falling_value,
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S_IRUGO | S_IWUSR,
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tsl2563_read_thresh,
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tsl2563_write_thresh,
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TSL2563_REG_LOWLOW);
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static int tsl2563_read_thresh(struct iio_dev *indio_dev,
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int event_code,
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int *val)
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{
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struct tsl2563_chip *chip = iio_priv(indio_dev);
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switch (IIO_EVENT_CODE_EXTRACT_DIR(event_code)) {
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case IIO_EV_DIR_RISING:
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*val = chip->high_thres;
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break;
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case IIO_EV_DIR_FALLING:
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*val = chip->low_thres;
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static ssize_t tsl2563_write_thresh(struct iio_dev *indio_dev,
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int event_code,
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int val)
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{
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struct tsl2563_chip *chip = iio_priv(indio_dev);
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int ret;
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u8 address;
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if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) == IIO_EV_DIR_RISING)
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address = TSL2563_REG_HIGHLOW;
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else
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address = TSL2563_REG_LOWLOW;
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mutex_lock(&chip->lock);
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ret = tsl2563_write(chip->client, address, val & 0xFF);
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if (ret)
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goto error_ret;
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ret = tsl2563_write(chip->client, address + 1,
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(val >> 8) & 0xFF);
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if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) == IIO_EV_DIR_RISING)
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chip->high_thres = val;
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else
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chip->low_thres = val;
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error_ret:
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mutex_unlock(&chip->lock);
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return ret;
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}
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static irqreturn_t tsl2563_event_handler(int irq, void *private)
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{
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@ -693,20 +626,15 @@ static irqreturn_t tsl2563_event_handler(int irq, void *private)
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return IRQ_HANDLED;
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}
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static ssize_t tsl2563_write_interrupt_config(struct device *dev,
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struct device_attribute *attr,
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const char *buf,
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size_t len)
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static int tsl2563_write_interrupt_config(struct iio_dev *indio_dev,
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int event_code,
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int state)
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{
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct tsl2563_chip *chip = iio_priv(indio_dev);
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int input, ret = 0;
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int ret = 0;
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ret = sscanf(buf, "%d", &input);
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if (ret != 1)
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return -EINVAL;
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mutex_lock(&chip->lock);
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if (input && !(chip->intr & 0x30)) {
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if (state && !(chip->intr & 0x30)) {
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chip->intr &= ~0x30;
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chip->intr |= 0x10;
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/* ensure the chip is actually on */
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@ -723,7 +651,7 @@ static ssize_t tsl2563_write_interrupt_config(struct device *dev,
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chip->int_enabled = true;
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}
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if (!input && (chip->intr & 0x30)) {
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if (!state && (chip->intr & 0x30)) {
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chip->intr |= ~0x30;
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ret = tsl2563_write(chip->client, TSL2563_REG_INT, chip->intr);
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chip->int_enabled = false;
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@ -733,47 +661,27 @@ static ssize_t tsl2563_write_interrupt_config(struct device *dev,
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out:
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mutex_unlock(&chip->lock);
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return (ret < 0) ? ret : len;
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return ret;
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}
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static ssize_t tsl2563_read_interrupt_config(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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static int tsl2563_read_interrupt_config(struct iio_dev *indio_dev,
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int event_code)
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{
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struct tsl2563_chip *chip = iio_priv(dev_get_drvdata(dev));
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int ret;
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struct tsl2563_chip *chip = iio_priv(indio_dev);
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u8 rxbuf;
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ssize_t len;
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int ret;
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mutex_lock(&chip->lock);
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ret = tsl2563_read(chip->client,
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TSL2563_REG_INT,
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&rxbuf,
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sizeof(rxbuf));
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ret = tsl2563_read(chip->client, TSL2563_REG_INT,
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&rxbuf, sizeof(rxbuf));
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mutex_unlock(&chip->lock);
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if (ret < 0)
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goto error_ret;
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len = snprintf(buf, PAGE_SIZE, "%d\n", !!(rxbuf & 0x30));
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ret = !!(rxbuf & 0x30);
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error_ret:
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return (ret < 0) ? ret : len;
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return ret;
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}
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static IIO_DEVICE_ATTR(intensity0_both_thresh_en,
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S_IRUGO | S_IWUSR,
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tsl2563_read_interrupt_config,
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tsl2563_write_interrupt_config,
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0);
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static struct attribute *tsl2563_event_attributes[] = {
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&iio_dev_attr_intensity0_both_thresh_en.dev_attr.attr,
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&iio_dev_attr_intensity0_both_raw_thresh_rising_value.dev_attr.attr,
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&iio_dev_attr_intensity0_both_raw_thresh_falling_value.dev_attr.attr,
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NULL,
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};
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static struct attribute_group tsl2563_event_attribute_group = {
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.attrs = tsl2563_event_attributes,
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};
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/*--------------------------------------------------------------*/
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/* Probe, Attach, Remove */
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@ -825,20 +733,23 @@ static int __devinit tsl2563_probe(struct i2c_client *client,
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chip->cover_comp_gain = 1;
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dev_info(&client->dev, "model %d, rev. %d\n", id >> 4, id & 0x0f);
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indio_dev->attrs = &tsl2563_group;
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indio_dev->name = client->name;
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indio_dev->channels = tsl2563_channels;
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indio_dev->num_channels = ARRAY_SIZE(tsl2563_channels);
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indio_dev->read_raw = &tsl2563_read_raw;
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indio_dev->write_raw = &tsl2563_write_raw;
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indio_dev->read_event_value = &tsl2563_read_thresh;
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indio_dev->write_event_value = &tsl2563_write_thresh;
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indio_dev->read_event_config = &tsl2563_read_interrupt_config;
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indio_dev->write_event_config = &tsl2563_write_interrupt_config;
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indio_dev->dev.parent = &client->dev;
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indio_dev->driver_module = THIS_MODULE;
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indio_dev->modes = INDIO_DIRECT_MODE;
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if (client->irq) {
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if (client->irq)
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indio_dev->num_interrupt_lines = 1;
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indio_dev->event_attrs
|
||||
= &tsl2563_event_attribute_group;
|
||||
}
|
||||
ret = iio_device_register(indio_dev);
|
||||
if (ret)
|
||||
goto fail1;
|
||||
|
||||
if (client->irq) {
|
||||
ret = request_threaded_irq(client->irq,
|
||||
NULL,
|
||||
|
|
|
|||
Loading…
Reference in New Issue