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Diffstat (limited to 'arch/arm/mach-ux500/sensors1p.c')
-rw-r--r--arch/arm/mach-ux500/sensors1p.c298
1 files changed, 0 insertions, 298 deletions
diff --git a/arch/arm/mach-ux500/sensors1p.c b/arch/arm/mach-ux500/sensors1p.c
deleted file mode 100644
index e7f4642b1d9..00000000000
--- a/arch/arm/mach-ux500/sensors1p.c
+++ /dev/null
@@ -1,298 +0,0 @@
-
-/*
- * Copyright (C) 2009-2010 ST-Ericsson AB
- * License terms: GNU General Public License (GPL) version 2
- * Simple userspace interface for
- * Proximity Sensor Osram SFH 7741 and HAL switch Samsung HED54XXU11
- * Author: Jonas Aaberg <jonas.aberg@stericsson.com>
- *
- * This driver is only there for making Android happy. It is not ment
- * for mainline.
- */
-
-
-#include <linux/platform_device.h>
-#include <linux/sysfs.h>
-#include <linux/gpio.h>
-#include <linux/delay.h>
-#include <linux/jiffies.h>
-#include <linux/slab.h>
-#include <linux/regulator/consumer.h>
-#include <linux/err.h>
-
-#include <mach/sensors1p.h>
-
-struct sensor {
- struct regulator *regulator;
- int pin;
- int startup_time;
- int active;
- u64 when_enabled;
-};
-
-struct sensors1p {
- struct sensor hal;
- struct sensor proximity;
-};
-
-static int sensors1p_power_write(struct device *dev,
- struct sensor *s, const char *buf)
-{
- int val;
-
- if (sscanf(buf, "%d", &val) != 1)
- return -EINVAL;
-
- if (val != 0 && val != 1)
- return -EINVAL;
-
- if (val != s->active) {
- if (val) {
- regulator_enable(s->regulator);
- s->when_enabled = get_jiffies_64() +
- msecs_to_jiffies(s->startup_time);
- } else
- regulator_disable(s->regulator);
- }
- s->active = val;
-
- return strnlen(buf, PAGE_SIZE);
-
-}
-
-static ssize_t sensors1p_sysfs_hal_active_set(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
-
-
- struct sensors1p *s = platform_get_drvdata(container_of(dev,
- struct platform_device,
- dev));
- return sensors1p_power_write(dev, &s->hal, buf);
-
-}
-
-static ssize_t sensors1p_sysfs_proximity_active_set(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t count)
-{
-
-
- struct sensors1p *s = platform_get_drvdata(container_of(dev,
- struct platform_device,
- dev));
- return sensors1p_power_write(dev, &s->proximity, buf);
-
-}
-
-static ssize_t sensors1p_sysfs_hal_active_get(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct sensors1p *s = platform_get_drvdata(container_of(dev,
- struct platform_device,
- dev));
- return sprintf(buf, "%d", s->hal.active);
-}
-
-static ssize_t sensors1p_sysfs_proximity_active_get(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct sensors1p *s = platform_get_drvdata(container_of(dev,
- struct platform_device,
- dev));
- return sprintf(buf, "%d", s->proximity.active);
-}
-
-static int sensors1p_read(struct device *dev, struct sensor *s, char *buf)
-{
- int ret;
-
- if (!s->active)
- return -EINVAL;
-
- /* Only wait if read() is called before the sensor is up and running
- * Since jiffies wraps, always sleep maximum time.
- */
- if (time_before64(get_jiffies_64(), s->when_enabled))
- mdelay(s->startup_time);
-
- /* For some odd reason, setting direction in the probe function fails */
- ret = gpio_direction_input(s->pin);
-
- if (ret)
- dev_err(dev, "Failed to set GPIO pin %d to input.\n", s->pin);
- else
- ret = gpio_get_value(s->pin);
-
- return sprintf(buf, "%d", ret);
-}
-
-static ssize_t sensors1p_sysfs_hal_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct sensors1p *s = platform_get_drvdata(container_of(dev,
- struct platform_device,
- dev));
- return sensors1p_read(dev, &s->hal, buf);
-}
-
-static ssize_t sensors1p_sysfs_proximity_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct sensors1p *s = platform_get_drvdata(container_of(dev,
- struct platform_device,
- dev));
- return sensors1p_read(dev, &s->proximity, buf);
-}
-
-static DEVICE_ATTR(proximity_activate, 0666,
- sensors1p_sysfs_proximity_active_get,
- sensors1p_sysfs_proximity_active_set);
-static DEVICE_ATTR(hal_activate, 0666,
- sensors1p_sysfs_hal_active_get,
- sensors1p_sysfs_hal_active_set);
-static DEVICE_ATTR(proximity, 0444, sensors1p_sysfs_proximity_show, NULL);
-static DEVICE_ATTR(hal, 0444, sensors1p_sysfs_hal_show, NULL);
-
-static struct attribute *sensors1p_attrs[] = {
- &dev_attr_proximity_activate.attr,
- &dev_attr_hal_activate.attr,
- &dev_attr_proximity.attr,
- &dev_attr_hal.attr,
- NULL,
-};
-
-static struct attribute_group sensors1p_attr_group = {
- .name = NULL,
- .attrs = sensors1p_attrs,
-};
-
-static int __init sensors1p_probe(struct platform_device *pdev)
-{
- int err = -EINVAL;
- struct sensors1p_config *c;
- struct sensors1p *s = NULL;
-
- if (!pdev)
- goto out;
-
- c = pdev->dev.platform_data;
-
- if (c == NULL) {
- dev_err(&pdev->dev, "Error: Missconfigured.\n");
- goto out;
- }
-
- s = kzalloc(sizeof(struct sensors1p), GFP_KERNEL);
-
- if (s == NULL) {
- dev_err(&pdev->dev,
- "Could not allocate struct memory!\n");
- err = -ENOMEM;
- goto out;
- }
-
- s->hal.pin = c->hal.pin;
- err = gpio_request(c->hal.pin, "hal sensor");
- if (err < 0) {
- dev_err(&pdev->dev, "gpio_request failed with err: %d", err);
- goto err_hal_gpio;
- }
-
- s->proximity.pin = c->proximity.pin;
- err = gpio_request(c->proximity.pin, "proximity sensor");
- if (err < 0) {
- dev_err(&pdev->dev, "gpio_request failed with err: %d", err);
- goto err_proximity_gpio;
- }
-
- s->hal.startup_time = c->hal.startup_time;
- s->proximity.startup_time = c->proximity.startup_time;
-
-
- s->hal.regulator = regulator_get(&pdev->dev, c->hal.regulator);
-
- if (IS_ERR(s->hal.regulator)) {
- dev_err(&pdev->dev, "regulator_get(\"%s\") failed.\n",
- c->hal.regulator);
- err = PTR_ERR(s->hal.regulator);
- goto err_hal_reg;
- }
- s->proximity.regulator = regulator_get(&pdev->dev,
- c->proximity.regulator);
-
- if (IS_ERR(s->proximity.regulator)) {
- dev_err(&pdev->dev, "regulator_get(\"%s\") failed.\n",
- c->proximity.regulator);
- err = PTR_ERR(s->proximity.regulator);
- goto err_proximity_reg;
- }
-
- err = sysfs_create_group(&pdev->dev.kobj, &sensors1p_attr_group);
-
- if (err) {
- dev_err(&pdev->dev, "Failed to create sysfs entries.\n");
- goto err_sysfs;
- }
-
- platform_set_drvdata(pdev, s);
-
- return 0;
-
-err_sysfs:
- regulator_put(s->proximity.regulator);
-err_proximity_reg:
- regulator_put(s->hal.regulator);
-err_hal_reg:
- gpio_free(s->proximity.pin);
-err_proximity_gpio:
- gpio_free(s->hal.pin);
-err_hal_gpio:
- kfree(s);
-out:
- return err;
-}
-
-static int __exit sensors1p_remove(struct platform_device *pdev)
-{
- struct sensors1p *s = platform_get_drvdata(pdev);
-
- sysfs_remove_group(&pdev->dev.kobj, &sensors1p_attr_group);
- gpio_free(s->hal.pin);
- gpio_free(s->proximity.pin);
- regulator_put(s->hal.regulator);
- regulator_put(s->proximity.regulator);
- kfree(s);
- return 0;
-}
-
-static struct platform_driver sensors1p_driver = {
- .remove = __exit_p(sensors1p_remove),
- .driver = {
- .name = "sensors1p",
- .owner = THIS_MODULE,
- },
-};
-
-static int __init sensors1p_init(void)
-{
- return platform_driver_probe(&sensors1p_driver, sensors1p_probe);
-}
-
-static void __exit sensors1p_exit(void)
-{
- platform_driver_unregister(&sensors1p_driver);
-}
-
-late_initcall(sensors1p_init);
-module_exit(sensors1p_exit);
-
-MODULE_AUTHOR("Jonas Aaberg <jonas.aberg@stericsson.com>");
-MODULE_DESCRIPTION("One pin gpio sensors driver (Proximity+HAL)");
-MODULE_LICENSE("GPLv2");
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-29 23:16:18 +0000