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([188.163.112.76]) by smtp.gmail.com with ESMTPSA id j7-20020a17090643c700b008caaae1f1e1sm7153709ejn.110.2023.03.08.01.02.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 08 Mar 2023 01:02:30 -0800 (PST) From: Svyatoslav Ryhel To: Jonathan Cameron , Lars-Peter Clausen , Rob Herring , Krzysztof Kozlowski , Derek Kiernan , Dragan Cvetic , Arnd Bergmann , Greg Kroah-Hartman , Svyatoslav Ryhel , Dmitry Osipenko Cc: linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v1 3/4] misc: apds990x: convert to IIO Date: Wed, 8 Mar 2023 11:02:18 +0200 Message-Id: <20230308090219.12710-4-clamor95@gmail.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230308090219.12710-1-clamor95@gmail.com> References: <20230308090219.12710-1-clamor95@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Convert old sysfs export to an IIO look. Signed-off-by: Svyatoslav Ryhel --- drivers/misc/apds990x.c | 794 ++++++++++++++++++++-------------------- 1 file changed, 403 insertions(+), 391 deletions(-) diff --git a/drivers/misc/apds990x.c b/drivers/misc/apds990x.c index c53ead5a575d..0352962d6d89 100644 --- a/drivers/misc/apds990x.c +++ b/drivers/misc/apds990x.c @@ -20,6 +20,9 @@ #include #include +#include +#include + /* Register map */ #define APDS990X_ENABLE 0x00 /* Enable of states and interrupts */ #define APDS990X_ATIME 0x01 /* ALS ADC time */ @@ -100,6 +103,21 @@ #define APDS990X_LUX_OUTPUT_SCALE 10 +enum { + APDS990X_LUX_RANGE_ATTR = 1, + APDS990X_LUX_CALIB_FORMAT_ATTR, + APDS990X_LUX_CALIB_ATTR, + APDS990X_LUX_RATE_AVAIL_ATTR, + APDS990X_LUX_RATE_ATTR, + APDS990X_LUX_THRESH_ABOVE_ATTR, + APDS990X_LUX_THRESH_BELOW_ATTR, + APDS990X_PROX_SENSOR_RANGE_ATTR, + APDS990X_PROX_THRESH_ABOVE_VALUE_ATTR, + APDS990X_PROX_REPORTING_MODE_ATTR, + APDS990X_PROX_REPORTING_MODE_AVAIL_ATTR, + APDS990X_CHIP_ID_ATTR, +}; + /* Reverse chip factors for threshold calculation */ struct reverse_factors { u32 afactor; @@ -116,7 +134,7 @@ struct apds990x_chip { struct regulator_bulk_data regs[2]; wait_queue_head_t wait; - int prox_en; + bool prox_en; bool prox_continuous_mode; bool lux_wait_fresh_res; @@ -235,12 +253,8 @@ static int apds990x_write_word(struct apds990x_chip *chip, u8 reg, u16 data) static int apds990x_mode_on(struct apds990x_chip *chip) { - /* ALS is mandatory, proximity optional */ u8 reg = APDS990X_EN_AIEN | APDS990X_EN_PON | APDS990X_EN_AEN | - APDS990X_EN_WEN; - - if (chip->prox_en) - reg |= APDS990X_EN_PIEN | APDS990X_EN_PEN; + APDS990X_EN_WEN | APDS990X_EN_PIEN | APDS990X_EN_PEN; return apds990x_write_byte(chip, APDS990X_ENABLE, reg); } @@ -473,7 +487,8 @@ static int apds990x_ack_int(struct apds990x_chip *chip, u8 mode) static irqreturn_t apds990x_irq(int irq, void *data) { - struct apds990x_chip *chip = data; + struct iio_dev *indio_dev = data; + struct apds990x_chip *chip = iio_priv(indio_dev); u8 status; apds990x_read_byte(chip, APDS990X_STATUS, &status); @@ -498,12 +513,10 @@ static irqreturn_t apds990x_irq(int irq, void *data) chip->lux = chip->lux_raw; chip->lux_wait_fresh_res = false; wake_up(&chip->wait); - sysfs_notify(&chip->client->dev.kobj, - NULL, "lux0_input"); } } - if ((status & APDS990X_ST_PINT) && chip->prox_en) { + if (status & APDS990X_ST_PINT) { u16 clr_ch; apds990x_read_word(chip, APDS990X_CDATAL, &clr_ch); @@ -525,8 +538,6 @@ static irqreturn_t apds990x_irq(int irq, void *data) chip->prox_data = 0; else if (!chip->prox_continuous_mode) chip->prox_data = APDS_PROX_RANGE; - sysfs_notify(&chip->client->dev.kobj, - NULL, "prox0_raw"); } } mutex_unlock(&chip->mutex); @@ -619,102 +630,67 @@ static int apds990x_chip_off(struct apds990x_chip *chip) return 0; } -static ssize_t apds990x_lux_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct apds990x_chip *chip = dev_get_drvdata(dev); - ssize_t ret; - u32 result; - long timeout; - - if (pm_runtime_suspended(dev)) - return -EIO; - - timeout = wait_event_interruptible_timeout(chip->wait, - !chip->lux_wait_fresh_res, - msecs_to_jiffies(APDS_TIMEOUT)); - if (!timeout) - return -EIO; - - mutex_lock(&chip->mutex); - result = (chip->lux * chip->lux_calib) / APDS_CALIB_SCALER; - if (result > (APDS_RANGE * APDS990X_LUX_OUTPUT_SCALE)) - result = APDS_RANGE * APDS990X_LUX_OUTPUT_SCALE; - - ret = sprintf(buf, "%d.%d\n", - result / APDS990X_LUX_OUTPUT_SCALE, - result % APDS990X_LUX_OUTPUT_SCALE); - mutex_unlock(&chip->mutex); - return ret; -} +static const char * const reporting_modes[] = { "trigger", "periodic" }; -static DEVICE_ATTR(lux0_input, S_IRUGO, apds990x_lux_show, NULL); - -static ssize_t apds990x_lux_range_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%u\n", APDS_RANGE); -} - -static DEVICE_ATTR(lux0_sensor_range, S_IRUGO, apds990x_lux_range_show, NULL); - -static ssize_t apds990x_lux_calib_format_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%u\n", APDS_CALIB_SCALER); -} - -static DEVICE_ATTR(lux0_calibscale_default, S_IRUGO, - apds990x_lux_calib_format_show, NULL); - -static ssize_t apds990x_lux_calib_show(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t apds990x_lux_prox_show(struct device *dev, + struct device_attribute *attr, + char *buf) { - struct apds990x_chip *chip = dev_get_drvdata(dev); - - return sprintf(buf, "%u\n", chip->lux_calib); -} - -static ssize_t apds990x_lux_calib_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t len) -{ - struct apds990x_chip *chip = dev_get_drvdata(dev); - unsigned long value; - int ret; - - ret = kstrtoul(buf, 0, &value); - if (ret) - return ret; - - chip->lux_calib = value; + struct iio_dev *indio_dev = dev_to_iio_dev(dev); + struct apds990x_chip *chip = iio_priv(indio_dev); + struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); + int i, len = 0; + + mutex_lock(&indio_dev->mlock); + switch ((u32)this_attr->address) { + case APDS990X_LUX_RANGE_ATTR: + len = sprintf(buf, "%u\n", APDS_RANGE); + break; + case APDS990X_LUX_CALIB_FORMAT_ATTR: + len = sprintf(buf, "%u\n", APDS_CALIB_SCALER); + break; + case APDS990X_LUX_CALIB_ATTR: + len = sprintf(buf, "%u\n", chip->lux_calib); + break; + case APDS990X_LUX_RATE_AVAIL_ATTR: + for (i = 0; i < ARRAY_SIZE(arates_hz); i++) + len += sprintf(buf + len, "%d ", arates_hz[i]); + len = sprintf(buf + len - 1, "\n"); + break; + case APDS990X_LUX_RATE_ATTR: + len = sprintf(buf, "%d\n", chip->arate); + break; + case APDS990X_LUX_THRESH_ABOVE_ATTR: + len = sprintf(buf, "%d\n", chip->lux_thres_hi); + break; + case APDS990X_LUX_THRESH_BELOW_ATTR: + len = sprintf(buf, "%d\n", chip->lux_thres_lo); + break; + case APDS990X_PROX_SENSOR_RANGE_ATTR: + len = sprintf(buf, "%u\n", APDS_PROX_RANGE); + break; + case APDS990X_PROX_THRESH_ABOVE_VALUE_ATTR: + len = sprintf(buf, "%d\n", chip->prox_thres); + break; + case APDS990X_PROX_REPORTING_MODE_ATTR: + len = sprintf(buf, "%s\n", + reporting_modes[!!chip->prox_continuous_mode]); + break; + case APDS990X_PROX_REPORTING_MODE_AVAIL_ATTR: + len = sprintf(buf, "%s %s\n", + reporting_modes[0], reporting_modes[1]); + break; + case APDS990X_CHIP_ID_ATTR: + len = sprintf(buf, "%s %d\n", chip->chipname, chip->revision); + break; + default: + return -EINVAL; + } + mutex_unlock(&indio_dev->mlock); return len; } -static DEVICE_ATTR(lux0_calibscale, S_IRUGO | S_IWUSR, apds990x_lux_calib_show, - apds990x_lux_calib_store); - -static ssize_t apds990x_rate_avail(struct device *dev, - struct device_attribute *attr, char *buf) -{ - int i; - int pos = 0; - - for (i = 0; i < ARRAY_SIZE(arates_hz); i++) - pos += sprintf(buf + pos, "%d ", arates_hz[i]); - sprintf(buf + pos - 1, "\n"); - return pos; -} - -static ssize_t apds990x_rate_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct apds990x_chip *chip = dev_get_drvdata(dev); - - return sprintf(buf, "%d\n", chip->arate); -} - static int apds990x_set_arate(struct apds990x_chip *chip, int rate) { int i; @@ -740,154 +716,8 @@ static int apds990x_set_arate(struct apds990x_chip *chip, int rate) (chip->prox_persistence << APDS990X_PPERS_SHIFT)); } -static ssize_t apds990x_rate_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t len) -{ - struct apds990x_chip *chip = dev_get_drvdata(dev); - unsigned long value; - int ret; - - ret = kstrtoul(buf, 0, &value); - if (ret) - return ret; - - mutex_lock(&chip->mutex); - ret = apds990x_set_arate(chip, value); - mutex_unlock(&chip->mutex); - - if (ret < 0) - return ret; - return len; -} - -static DEVICE_ATTR(lux0_rate_avail, S_IRUGO, apds990x_rate_avail, NULL); - -static DEVICE_ATTR(lux0_rate, S_IRUGO | S_IWUSR, apds990x_rate_show, - apds990x_rate_store); - -static ssize_t apds990x_prox_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - ssize_t ret; - struct apds990x_chip *chip = dev_get_drvdata(dev); - - if (pm_runtime_suspended(dev) || !chip->prox_en) - return -EIO; - - mutex_lock(&chip->mutex); - ret = sprintf(buf, "%d\n", chip->prox_data); - mutex_unlock(&chip->mutex); - return ret; -} - -static DEVICE_ATTR(prox0_raw, S_IRUGO, apds990x_prox_show, NULL); - -static ssize_t apds990x_prox_range_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%u\n", APDS_PROX_RANGE); -} - -static DEVICE_ATTR(prox0_sensor_range, S_IRUGO, apds990x_prox_range_show, NULL); - -static ssize_t apds990x_prox_enable_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct apds990x_chip *chip = dev_get_drvdata(dev); - - return sprintf(buf, "%d\n", chip->prox_en); -} - -static ssize_t apds990x_prox_enable_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t len) -{ - struct apds990x_chip *chip = dev_get_drvdata(dev); - unsigned long value; - int ret; - - ret = kstrtoul(buf, 0, &value); - if (ret) - return ret; - - mutex_lock(&chip->mutex); - - if (!chip->prox_en) - chip->prox_data = 0; - - if (value) - chip->prox_en++; - else if (chip->prox_en > 0) - chip->prox_en--; - - if (!pm_runtime_suspended(dev)) - apds990x_mode_on(chip); - mutex_unlock(&chip->mutex); - return len; -} - -static DEVICE_ATTR(prox0_raw_en, S_IRUGO | S_IWUSR, apds990x_prox_enable_show, - apds990x_prox_enable_store); - -static const char *reporting_modes[] = {"trigger", "periodic"}; - -static ssize_t apds990x_prox_reporting_mode_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct apds990x_chip *chip = dev_get_drvdata(dev); - - return sprintf(buf, "%s\n", - reporting_modes[!!chip->prox_continuous_mode]); -} - -static ssize_t apds990x_prox_reporting_mode_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t len) -{ - struct apds990x_chip *chip = dev_get_drvdata(dev); - int ret; - - ret = sysfs_match_string(reporting_modes, buf); - if (ret < 0) - return ret; - - chip->prox_continuous_mode = ret; - return len; -} - -static DEVICE_ATTR(prox0_reporting_mode, S_IRUGO | S_IWUSR, - apds990x_prox_reporting_mode_show, - apds990x_prox_reporting_mode_store); - -static ssize_t apds990x_prox_reporting_avail_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%s %s\n", reporting_modes[0], reporting_modes[1]); -} - -static DEVICE_ATTR(prox0_reporting_mode_avail, S_IRUGO | S_IWUSR, - apds990x_prox_reporting_avail_show, NULL); - - -static ssize_t apds990x_lux_thresh_above_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct apds990x_chip *chip = dev_get_drvdata(dev); - - return sprintf(buf, "%d\n", chip->lux_thres_hi); -} - -static ssize_t apds990x_lux_thresh_below_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct apds990x_chip *chip = dev_get_drvdata(dev); - - return sprintf(buf, "%d\n", chip->lux_thres_lo); -} - -static ssize_t apds990x_set_lux_thresh(struct apds990x_chip *chip, u32 *target, - const char *buf) +static int apds990x_set_lux_thresh(struct apds990x_chip *chip, u32 *target, + const char *buf) { unsigned long thresh; int ret; @@ -908,98 +738,165 @@ static ssize_t apds990x_set_lux_thresh(struct apds990x_chip *chip, u32 *target, if (!chip->lux_wait_fresh_res) apds990x_refresh_athres(chip); mutex_unlock(&chip->mutex); - return ret; + return ret; } -static ssize_t apds990x_lux_thresh_above_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t len) +static ssize_t apds990x_lux_prox_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t len) { - struct apds990x_chip *chip = dev_get_drvdata(dev); - int ret = apds990x_set_lux_thresh(chip, &chip->lux_thres_hi, buf); + struct iio_dev *indio_dev = dev_to_iio_dev(dev); + struct apds990x_chip *chip = iio_priv(indio_dev); + struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); + unsigned long value; + int ret; - if (ret < 0) + ret = kstrtoul(buf, 0, &value); + if (ret) return ret; - return len; -} -static ssize_t apds990x_lux_thresh_below_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t len) -{ - struct apds990x_chip *chip = dev_get_drvdata(dev); - int ret = apds990x_set_lux_thresh(chip, &chip->lux_thres_lo, buf); - - if (ret < 0) - return ret; - return len; -} + mutex_lock(&indio_dev->mlock); + switch ((u32)this_attr->address) { + case APDS990X_LUX_CALIB_ATTR: + chip->lux_calib = value; + break; + case APDS990X_LUX_RATE_ATTR: + mutex_lock(&chip->mutex); + ret = apds990x_set_arate(chip, value); + mutex_unlock(&chip->mutex); -static DEVICE_ATTR(lux0_thresh_above_value, S_IRUGO | S_IWUSR, - apds990x_lux_thresh_above_show, - apds990x_lux_thresh_above_store); + if (ret < 0) + return ret; + break; + case APDS990X_LUX_THRESH_ABOVE_ATTR: + ret = apds990x_set_lux_thresh(chip, + &chip->lux_thres_hi, buf); -static DEVICE_ATTR(lux0_thresh_below_value, S_IRUGO | S_IWUSR, - apds990x_lux_thresh_below_show, - apds990x_lux_thresh_below_store); + if (ret < 0) + return ret; + break; + case APDS990X_LUX_THRESH_BELOW_ATTR: + ret = apds990x_set_lux_thresh(chip, + &chip->lux_thres_lo, buf); -static ssize_t apds990x_prox_threshold_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct apds990x_chip *chip = dev_get_drvdata(dev); + if (ret < 0) + return ret; + break; + case APDS990X_PROX_THRESH_ABOVE_VALUE_ATTR: + if (value > APDS_RANGE || value == 0 || + value < APDS_PROX_HYSTERESIS) + return -EINVAL; - return sprintf(buf, "%d\n", chip->prox_thres); -} + mutex_lock(&chip->mutex); -static ssize_t apds990x_prox_threshold_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t len) -{ - struct apds990x_chip *chip = dev_get_drvdata(dev); - unsigned long value; - int ret; + chip->prox_thres = value; + apds990x_force_p_refresh(chip); - ret = kstrtoul(buf, 0, &value); - if (ret) - return ret; + mutex_unlock(&chip->mutex); + break; + case APDS990X_PROX_REPORTING_MODE_ATTR: + ret = sysfs_match_string(reporting_modes, buf); + if (ret < 0) + return ret; - if ((value > APDS_RANGE) || (value == 0) || - (value < APDS_PROX_HYSTERESIS)) + chip->prox_continuous_mode = ret; + break; + default: return -EINVAL; + } - mutex_lock(&chip->mutex); - chip->prox_thres = value; - - apds990x_force_p_refresh(chip); - mutex_unlock(&chip->mutex); + mutex_unlock(&indio_dev->mlock); return len; } -static DEVICE_ATTR(prox0_thresh_above_value, S_IRUGO | S_IWUSR, - apds990x_prox_threshold_show, - apds990x_prox_threshold_store); +/* ALS ATTRIBUTES */ +static IIO_DEVICE_ATTR(in_illuminance_range, 0444, + apds990x_lux_prox_show, + NULL, + APDS990X_LUX_RANGE_ATTR); + +static IIO_DEVICE_ATTR(in_illuminance_calib_format, 0444, + apds990x_lux_prox_show, + NULL, + APDS990X_LUX_CALIB_FORMAT_ATTR); + +static IIO_DEVICE_ATTR(in_illuminance_calibscale, 0644, + apds990x_lux_prox_show, + apds990x_lux_prox_store, + APDS990X_LUX_CALIB_ATTR); + +static IIO_DEVICE_ATTR(in_illuminance_rate_avail, 0444, + apds990x_lux_prox_show, + NULL, + APDS990X_LUX_RATE_AVAIL_ATTR); + +static IIO_DEVICE_ATTR(in_illuminance_rate, 0644, + apds990x_lux_prox_show, + apds990x_lux_prox_store, + APDS990X_LUX_RATE_ATTR); + +static IIO_DEVICE_ATTR(in_illuminance_thresh_above_value, 0644, + apds990x_lux_prox_show, + apds990x_lux_prox_store, + APDS990X_LUX_THRESH_ABOVE_ATTR); + +static IIO_DEVICE_ATTR(in_illuminance_thresh_below_value, 0644, + apds990x_lux_prox_show, + apds990x_lux_prox_store, + APDS990X_LUX_THRESH_BELOW_ATTR); + +/* PROX ATTRIBUTES */ +static IIO_DEVICE_ATTR(in_proximity_sensor_range, 0444, + apds990x_lux_prox_show, + NULL, + APDS990X_PROX_SENSOR_RANGE_ATTR); + +static IIO_DEVICE_ATTR(in_proximity_reporting_mode, 0644, + apds990x_lux_prox_show, + apds990x_lux_prox_store, + APDS990X_PROX_REPORTING_MODE_ATTR); + +static IIO_DEVICE_ATTR(in_proximity_reporting_mode_avail, 0644, + apds990x_lux_prox_show, + NULL, + APDS990X_PROX_REPORTING_MODE_AVAIL_ATTR); + +static IIO_DEVICE_ATTR(in_proximity_thresh_above_value, 0644, + apds990x_lux_prox_show, + apds990x_lux_prox_store, + APDS990X_PROX_THRESH_ABOVE_VALUE_ATTR); + +static IIO_DEVICE_ATTR(chip_id, 0444, + apds990x_lux_prox_show, + NULL, + APDS990X_CHIP_ID_ATTR); + +static struct attribute *apds990x_attributes[] = { + &iio_dev_attr_in_illuminance_calib_format.dev_attr.attr, + &iio_dev_attr_in_illuminance_range.dev_attr.attr, + &iio_dev_attr_in_illuminance_calibscale.dev_attr.attr, + &iio_dev_attr_in_illuminance_rate.dev_attr.attr, + &iio_dev_attr_in_illuminance_rate_avail.dev_attr.attr, + &iio_dev_attr_in_illuminance_thresh_above_value.dev_attr.attr, + &iio_dev_attr_in_illuminance_thresh_below_value.dev_attr.attr, + &iio_dev_attr_in_proximity_sensor_range.dev_attr.attr, + &iio_dev_attr_in_proximity_thresh_above_value.dev_attr.attr, + &iio_dev_attr_in_proximity_reporting_mode.dev_attr.attr, + &iio_dev_attr_in_proximity_reporting_mode_avail.dev_attr.attr, + &iio_dev_attr_chip_id.dev_attr.attr, + NULL +}; -static ssize_t apds990x_power_state_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%d\n", !pm_runtime_suspended(dev)); - return 0; -} +static const struct attribute_group apds990x_attribute_group = { + .attrs = apds990x_attributes, +}; -static ssize_t apds990x_power_state_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t len) +static void apds990x_power_state_switch(struct apds990x_chip *chip, bool state) { - struct apds990x_chip *chip = dev_get_drvdata(dev); - unsigned long value; - int ret; + struct device *dev = &chip->client->dev; - ret = kstrtoul(buf, 0, &value); - if (ret) - return ret; - - if (value) { + if (state) { pm_runtime_get_sync(dev); mutex_lock(&chip->mutex); chip->lux_wait_fresh_res = true; @@ -1010,46 +907,80 @@ static ssize_t apds990x_power_state_store(struct device *dev, if (!pm_runtime_suspended(dev)) pm_runtime_put(dev); } - return len; } -static DEVICE_ATTR(power_state, S_IRUGO | S_IWUSR, - apds990x_power_state_show, - apds990x_power_state_store); - -static ssize_t apds990x_chip_id_show(struct device *dev, - struct device_attribute *attr, char *buf) +static int apds990x_lux_raw(struct apds990x_chip *chip) { - struct apds990x_chip *chip = dev_get_drvdata(dev); + struct device *dev = &chip->client->dev; + int ret; + long timeout; + + if (pm_runtime_suspended(dev)) + return -EIO; + + timeout = wait_event_interruptible_timeout(chip->wait, + !chip->lux_wait_fresh_res, + msecs_to_jiffies(APDS_TIMEOUT)); + if (!timeout) + return -EIO; + + mutex_lock(&chip->mutex); + + ret = (chip->lux * chip->lux_calib) / APDS_CALIB_SCALER; + if (ret > (APDS_RANGE * APDS990X_LUX_OUTPUT_SCALE)) + ret = APDS_RANGE * APDS990X_LUX_OUTPUT_SCALE; - return sprintf(buf, "%s %d\n", chip->chipname, chip->revision); + mutex_unlock(&chip->mutex); + + return ret; } -static DEVICE_ATTR(chip_id, S_IRUGO, apds990x_chip_id_show, NULL); - -static struct attribute *sysfs_attrs_ctrl[] = { - &dev_attr_lux0_calibscale.attr, - &dev_attr_lux0_calibscale_default.attr, - &dev_attr_lux0_input.attr, - &dev_attr_lux0_sensor_range.attr, - &dev_attr_lux0_rate.attr, - &dev_attr_lux0_rate_avail.attr, - &dev_attr_lux0_thresh_above_value.attr, - &dev_attr_lux0_thresh_below_value.attr, - &dev_attr_prox0_raw_en.attr, - &dev_attr_prox0_raw.attr, - &dev_attr_prox0_sensor_range.attr, - &dev_attr_prox0_thresh_above_value.attr, - &dev_attr_prox0_reporting_mode.attr, - &dev_attr_prox0_reporting_mode_avail.attr, - &dev_attr_chip_id.attr, - &dev_attr_power_state.attr, - NULL -}; +static int apds990x_prox_raw(struct apds990x_chip *chip) +{ + struct device *dev = &chip->client->dev; + long timeout; + u16 clr_ch; -static const struct attribute_group apds990x_attribute_group[] = { - { .attrs = sysfs_attrs_ctrl }, -}; + if (!chip->prox_en) { + chip->prox_data = 0; + return chip->prox_data; + } + + if (pm_runtime_suspended(dev)) + return -EIO; + + timeout = wait_event_interruptible_timeout(chip->wait, + !chip->lux_wait_fresh_res, + msecs_to_jiffies(APDS_TIMEOUT)); + if (!timeout) + return -EIO; + + mutex_lock(&chip->mutex); + + apds990x_read_word(chip, APDS990X_CDATAL, &clr_ch); + /* + * If ALS channel is saturated at min gain, + * proximity gives false posivite values. + * Just ignore them. + */ + if (chip->again_meas == 0 && + clr_ch == chip->a_max_result) + chip->prox_data = 0; + else + apds990x_read_word(chip, + APDS990X_PDATAL, + &chip->prox_data); + + apds990x_refresh_pthres(chip, chip->prox_data); + if (chip->prox_data < chip->prox_thres) + chip->prox_data = 0; + else if (!chip->prox_continuous_mode) + chip->prox_data = 1; + + mutex_unlock(&chip->mutex); + + return chip->prox_data; +} static int apds990x_of_probe(struct i2c_client *client, struct apds990x_chip *chip) @@ -1080,15 +1011,114 @@ static int apds990x_of_probe(struct i2c_client *client, return 0; } +static int apds990x_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, int *val, + int *val2, long mask) +{ + struct apds990x_chip *chip = iio_priv(indio_dev); + + switch (mask) { + case IIO_CHAN_INFO_RAW: + apds990x_power_state_switch(chip, true); + + switch (chan->type) { + case IIO_LIGHT: + *val = apds990x_lux_raw(chip); + break; + case IIO_PROXIMITY: + *val = apds990x_prox_raw(chip); + break; + default: + break; + } + + apds990x_power_state_switch(chip, false); + + return IIO_VAL_INT; + + case IIO_CHAN_INFO_SCALE: + switch (chan->type) { + case IIO_LIGHT: + case IIO_PROXIMITY: + default: + *val = 1; + break; + } + + return IIO_VAL_INT; + + case IIO_CHAN_INFO_ENABLE: + switch (chan->type) { + case IIO_PROXIMITY: + *val = chip->prox_en; + default: + break; + } + + return IIO_VAL_INT; + } + return -EINVAL; +} + +static int apds990x_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, int val, + int val2, long mask) +{ + struct apds990x_chip *chip = iio_priv(indio_dev); + + switch (mask) { + case IIO_CHAN_INFO_ENABLE: + switch (chan->type) { + case IIO_PROXIMITY: + mutex_lock(&chip->mutex); + chip->prox_en = val; + mutex_unlock(&chip->mutex); + default: + break; + } + + return 0; + } + return -EINVAL; +} + +static const struct iio_chan_spec apds990x_channels[] = { + { + .type = IIO_LIGHT, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_SCALE), + }, + { + .type = IIO_PROXIMITY, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_SCALE) | + BIT(IIO_CHAN_INFO_ENABLE), + }, +}; + +static const struct iio_info apds990x_info = { + .attrs = &apds990x_attribute_group, + .read_raw = apds990x_read_raw, + .write_raw = apds990x_write_raw, +}; + static int apds990x_probe(struct i2c_client *client) { struct apds990x_chip *chip; + struct iio_dev *indio_dev; int err; - chip = kzalloc(sizeof *chip, GFP_KERNEL); - if (!chip) + indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip)); + if (!indio_dev) return -ENOMEM; + indio_dev->info = &apds990x_info; + indio_dev->name = "apds990x"; + indio_dev->channels = apds990x_channels; + indio_dev->num_channels = ARRAY_SIZE(apds990x_channels); + indio_dev->modes = INDIO_DIRECT_MODE; + + chip = iio_priv(indio_dev); i2c_set_clientdata(client, chip); chip->client = client; @@ -1140,17 +1170,17 @@ static int apds990x_probe(struct i2c_client *client) chip->regs[0].supply = reg_vcc; chip->regs[1].supply = reg_vled; - err = regulator_bulk_get(&client->dev, - ARRAY_SIZE(chip->regs), chip->regs); + err = devm_regulator_bulk_get(&client->dev, + ARRAY_SIZE(chip->regs), chip->regs); if (err < 0) { dev_err(&client->dev, "Cannot get regulators\n"); - goto fail1; + return err; } err = regulator_bulk_enable(ARRAY_SIZE(chip->regs), chip->regs); if (err < 0) { dev_err(&client->dev, "Cannot enable regulators\n"); - goto fail2; + return err; } usleep_range(APDS_STARTUP_DELAY, 2 * APDS_STARTUP_DELAY); @@ -1158,7 +1188,7 @@ static int apds990x_probe(struct i2c_client *client) err = apds990x_detect(chip); if (err < 0) { dev_err(&client->dev, "APDS990X not found\n"); - goto fail3; + return err; } pm_runtime_set_active(&client->dev); @@ -1173,39 +1203,29 @@ static int apds990x_probe(struct i2c_client *client) err = chip->pdata->setup_resources(); if (err) { err = -EINVAL; - goto fail3; + goto fail; } } - err = sysfs_create_group(&chip->client->dev.kobj, - apds990x_attribute_group); - if (err < 0) { - dev_err(&chip->client->dev, "Sysfs registration failed\n"); - goto fail4; - } - - err = request_threaded_irq(client->irq, NULL, - apds990x_irq, - IRQF_TRIGGER_FALLING | IRQF_ONESHOT, - "apds990x", chip); + err = devm_request_threaded_irq(&client->dev, client->irq, + NULL, apds990x_irq, + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, + "apds990x", indio_dev); if (err) { dev_err(&client->dev, "could not get IRQ %d\n", client->irq); - goto fail5; + goto fail; } - return err; -fail5: - sysfs_remove_group(&chip->client->dev.kobj, - &apds990x_attribute_group[0]); -fail4: + + err = iio_device_register(indio_dev); + if (err) + goto fail; + + return 0; +fail: if (chip->pdata && chip->pdata->release_resources) chip->pdata->release_resources(); -fail3: - regulator_bulk_disable(ARRAY_SIZE(chip->regs), chip->regs); -fail2: - regulator_bulk_free(ARRAY_SIZE(chip->regs), chip->regs); -fail1: - kfree(chip); + return err; } @@ -1213,10 +1233,6 @@ static void apds990x_remove(struct i2c_client *client) { struct apds990x_chip *chip = i2c_get_clientdata(client); - free_irq(client->irq, chip); - sysfs_remove_group(&chip->client->dev.kobj, - apds990x_attribute_group); - if (chip->pdata && chip->pdata->release_resources) chip->pdata->release_resources(); @@ -1225,10 +1241,6 @@ static void apds990x_remove(struct i2c_client *client) pm_runtime_disable(&client->dev); pm_runtime_set_suspended(&client->dev); - - regulator_bulk_free(ARRAY_SIZE(chip->regs), chip->regs); - - kfree(chip); } #ifdef CONFIG_PM_SLEEP -- 2.37.2