From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755560Ab1GFS4o (ORCPT ); Wed, 6 Jul 2011 14:56:44 -0400 Received: from smtp-out.google.com ([216.239.44.51]:55274 "EHLO smtp-out.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754749Ab1GFS4m (ORCPT ); Wed, 6 Jul 2011 14:56:42 -0400 From: Bryan Freed To: linux-kernel@vger.kernel.org Cc: jic23@cam.ac.uk, gregkh@suse.de, rklein@nvidia.com, linux-iio@vger.kernel.org, Bryan Freed Subject: [PATCH 3/3] staging:iio:light:isl29018: Convert some of the isl29018 driver to the new IIO_CHAN framework. Date: Wed, 6 Jul 2011 11:56:26 -0700 Message-Id: <1309978586-10092-3-git-send-email-bfreed@chromium.org> X-Mailer: git-send-email 1.7.3.1 In-Reply-To: <1309978586-10092-1-git-send-email-bfreed@chromium.org> References: <1309978586-10092-1-git-send-email-bfreed@chromium.org> X-System-Of-Record: true Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Remove the driver's get_sensor_data() interfaces and replace them with IIO_CHAN channels. This converts 4 files to the new framework. Driver ABI change: The intensity_infrared_raw file is now intensity_ir_raw. Signed-off-by: Bryan Freed --- drivers/staging/iio/light/isl29018.c | 159 +++++++++++++++------------------- 1 files changed, 69 insertions(+), 90 deletions(-) diff --git a/drivers/staging/iio/light/isl29018.c b/drivers/staging/iio/light/isl29018.c index cd88311..aac4e39 100644 --- a/drivers/staging/iio/light/isl29018.c +++ b/drivers/staging/iio/light/isl29018.c @@ -225,74 +225,7 @@ static int isl29018_read_proximity_ir(struct i2c_client *client, int scheme, return 0; } -static ssize_t get_sensor_data(struct device *dev, char *buf, int mode) -{ - struct iio_dev *indio_dev = dev_get_drvdata(dev); - struct isl29018_chip *chip = indio_dev->dev_data; - struct i2c_client *client = chip->client; - int value = 0; - int status; - - mutex_lock(&chip->lock); - switch (mode) { - case COMMMAND1_OPMODE_PROX_ONCE: - status = isl29018_read_proximity_ir(client, - chip->prox_scheme, &value); - break; - - case COMMMAND1_OPMODE_ALS_ONCE: - status = isl29018_read_lux(client, &value); - break; - - case COMMMAND1_OPMODE_IR_ONCE: - status = isl29018_read_ir(client, &value); - break; - - default: - dev_err(&client->dev, "Mode %d is not supported\n", mode); - mutex_unlock(&chip->lock); - return -EBUSY; - } - if (status < 0) { - dev_err(&client->dev, "Error in Reading data"); - mutex_unlock(&chip->lock); - return status; - } - - mutex_unlock(&chip->lock); - - return sprintf(buf, "%d\n", value); -} - /* Sysfs interface */ -/* lux_scale */ -static ssize_t show_lux_scale(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct iio_dev *indio_dev = dev_get_drvdata(dev); - struct isl29018_chip *chip = indio_dev->dev_data; - - return sprintf(buf, "%d\n", chip->lux_scale); -} - -static ssize_t store_lux_scale(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) -{ - struct iio_dev *indio_dev = dev_get_drvdata(dev); - struct isl29018_chip *chip = indio_dev->dev_data; - unsigned long lval; - - lval = simple_strtoul(buf, NULL, 10); - if (lval == 0) - return -EINVAL; - - mutex_lock(&chip->lock); - chip->lux_scale = lval; - mutex_unlock(&chip->lock); - - return count; -} - /* range */ static ssize_t show_range(struct device *dev, struct device_attribute *attr, char *buf) @@ -410,27 +343,78 @@ static ssize_t store_prox_infrared_supression(struct device *dev, return count; } -/* Read lux */ -static ssize_t show_lux(struct device *dev, - struct device_attribute *devattr, char *buf) +/* Channel IO */ +static int isl29018_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, + int val2, + long mask) { - return get_sensor_data(dev, buf, COMMMAND1_OPMODE_ALS_ONCE); -} + struct isl29018_chip *chip = indio_dev->dev_data; + int ret = -EINVAL; -/* Read ir */ -static ssize_t show_ir(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - return get_sensor_data(dev, buf, COMMMAND1_OPMODE_IR_ONCE); + mutex_lock(&chip->lock); + if (mask == (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE) && + chan->type == IIO_LIGHT) { + chip->lux_scale = val; + ret = 0; + } + mutex_unlock(&chip->lock); + + return 0; } -/* Read nearest ir */ -static ssize_t show_proxim_ir(struct device *dev, - struct device_attribute *devattr, char *buf) +static int isl29018_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, + int *val2, + long mask) { - return get_sensor_data(dev, buf, COMMMAND1_OPMODE_PROX_ONCE); + int ret = -EINVAL; + struct isl29018_chip *chip = indio_dev->dev_data; + struct i2c_client *client = chip->client; + + mutex_lock(&chip->lock); + switch (mask) { + case 0: + switch (chan->type) { + case IIO_LIGHT: + ret = isl29018_read_lux(client, val); + break; + case IIO_INTENSITY: + ret = isl29018_read_ir(client, val); + break; + case IIO_PROXIMITY: + ret = isl29018_read_proximity_ir(client, + chip->prox_scheme, val); + break; + default: + break; + } + if (!ret) + ret = IIO_VAL_INT; + break; + case (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE): + if (chan->type == IIO_LIGHT) { + *val = chip->lux_scale; + ret = IIO_VAL_INT; + } + break; + default: + break; + } + mutex_unlock(&chip->lock); + return ret; } +#define LIGHT_INFO_MASK (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE) +static const struct iio_chan_spec isl29018_channels[] = { + IIO_CHAN(IIO_LIGHT, 0, 1, 1, NULL, 0, 0, LIGHT_INFO_MASK, + 0, 0, {}, 0), + IIO_CHAN(IIO_INTENSITY, 1, 0, 0, NULL, 0, 1, 0, 0, 0, {}, 0), + IIO_CHAN(IIO_PROXIMITY, 0, 0, 0, NULL, 0, 0, 0, 0, 0, {}, 0), +}; + static IIO_DEVICE_ATTR(range, S_IRUGO | S_IWUSR, show_range, store_range, 0); static IIO_CONST_ATTR(range_available, "1000 4000 16000 64000"); static IIO_CONST_ATTR(adc_resolution_available, "4 8 12 16"); @@ -440,11 +424,6 @@ static IIO_DEVICE_ATTR(proximity_on_chip_ambient_infrared_supression, S_IRUGO | S_IWUSR, show_prox_infrared_supression, store_prox_infrared_supression, 0); -static IIO_DEVICE_ATTR(illuminance0_input, S_IRUGO, show_lux, NULL, 0); -static IIO_DEVICE_ATTR(illuminance0_calibscale, S_IRUGO | S_IWUSR, - show_lux_scale, store_lux_scale, 0); -static IIO_DEVICE_ATTR(intensity_infrared_raw, S_IRUGO, show_ir, NULL, 0); -static IIO_DEVICE_ATTR(proximity_raw, S_IRUGO, show_proxim_ir, NULL, 0); #define ISL29018_DEV_ATTR(name) (&iio_dev_attr_##name.dev_attr.attr) #define ISL29018_CONST_ATTR(name) (&iio_const_attr_##name.dev_attr.attr) @@ -454,10 +433,6 @@ static struct attribute *isl29018_attributes[] = { ISL29018_DEV_ATTR(adc_resolution), ISL29018_CONST_ATTR(adc_resolution_available), ISL29018_DEV_ATTR(proximity_on_chip_ambient_infrared_supression), - ISL29018_DEV_ATTR(illuminance0_input), - ISL29018_DEV_ATTR(illuminance0_calibscale), - ISL29018_DEV_ATTR(intensity_infrared_raw), - ISL29018_DEV_ATTR(proximity_raw), NULL }; @@ -490,6 +465,8 @@ static int isl29018_chip_init(struct i2c_client *client) static const struct iio_info isl29108_info = { .attrs = &isl29108_group, .driver_module = THIS_MODULE, + .read_raw = &isl29018_read_raw, + .write_raw = &isl29018_write_raw, }; static int __devinit isl29018_probe(struct i2c_client *client, @@ -524,6 +501,8 @@ static int __devinit isl29018_probe(struct i2c_client *client, goto exit_free; } chip->indio_dev->info = &isl29108_info; + chip->indio_dev->channels = isl29018_channels; + chip->indio_dev->num_channels = ARRAY_SIZE(isl29018_channels); chip->indio_dev->name = id->name; chip->indio_dev->dev.parent = &client->dev; chip->indio_dev->dev_data = (void *)(chip); -- 1.7.3.1