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Diffstat (limited to 'drivers/hwmon/ams/ams-core.c')
-rw-r--r--drivers/hwmon/ams/ams-core.c250
1 files changed, 0 insertions, 250 deletions
diff --git a/drivers/hwmon/ams/ams-core.c b/drivers/hwmon/ams/ams-core.c
deleted file mode 100644
index 2ad62c339cd..00000000000
--- a/drivers/hwmon/ams/ams-core.c
+++ /dev/null
@@ -1,250 +0,0 @@
-/*
- * Apple Motion Sensor driver
- *
- * Copyright (C) 2005 Stelian Pop (stelian@popies.net)
- * Copyright (C) 2006 Michael Hanselmann (linux-kernel@hansmi.ch)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/of_platform.h>
-#include <asm/pmac_pfunc.h>
-
-#include "ams.h"
-
-/* There is only one motion sensor per machine */
-struct ams ams_info;
-
-static unsigned int verbose;
-module_param(verbose, bool, 0644);
-MODULE_PARM_DESC(verbose, "Show free falls and shocks in kernel output");
-
-/* Call with ams_info.lock held! */
-void ams_sensors(s8 *x, s8 *y, s8 *z)
-{
- u32 orient = ams_info.vflag? ams_info.orient1 : ams_info.orient2;
-
- if (orient & 0x80)
- /* X and Y swapped */
- ams_info.get_xyz(y, x, z);
- else
- ams_info.get_xyz(x, y, z);
-
- if (orient & 0x04)
- *z = ~(*z);
- if (orient & 0x02)
- *y = ~(*y);
- if (orient & 0x01)
- *x = ~(*x);
-}
-
-static ssize_t ams_show_current(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- s8 x, y, z;
-
- mutex_lock(&ams_info.lock);
- ams_sensors(&x, &y, &z);
- mutex_unlock(&ams_info.lock);
-
- return snprintf(buf, PAGE_SIZE, "%d %d %d\n", x, y, z);
-}
-
-static DEVICE_ATTR(current, S_IRUGO, ams_show_current, NULL);
-
-static void ams_handle_irq(void *data)
-{
- enum ams_irq irq = *((enum ams_irq *)data);
-
- spin_lock(&ams_info.irq_lock);
-
- ams_info.worker_irqs |= irq;
- schedule_work(&ams_info.worker);
-
- spin_unlock(&ams_info.irq_lock);
-}
-
-static enum ams_irq ams_freefall_irq_data = AMS_IRQ_FREEFALL;
-static struct pmf_irq_client ams_freefall_client = {
- .owner = THIS_MODULE,
- .handler = ams_handle_irq,
- .data = &ams_freefall_irq_data,
-};
-
-static enum ams_irq ams_shock_irq_data = AMS_IRQ_SHOCK;
-static struct pmf_irq_client ams_shock_client = {
- .owner = THIS_MODULE,
- .handler = ams_handle_irq,
- .data = &ams_shock_irq_data,
-};
-
-/* Once hard disk parking is implemented in the kernel, this function can
- * trigger it.
- */
-static void ams_worker(struct work_struct *work)
-{
- unsigned long flags;
- u8 irqs_to_clear;
-
- mutex_lock(&ams_info.lock);
-
- spin_lock_irqsave(&ams_info.irq_lock, flags);
- irqs_to_clear = ams_info.worker_irqs;
-
- if (ams_info.worker_irqs & AMS_IRQ_FREEFALL) {
- if (verbose)
- printk(KERN_INFO "ams: freefall detected!\n");
-
- ams_info.worker_irqs &= ~AMS_IRQ_FREEFALL;
- }
-
- if (ams_info.worker_irqs & AMS_IRQ_SHOCK) {
- if (verbose)
- printk(KERN_INFO "ams: shock detected!\n");
-
- ams_info.worker_irqs &= ~AMS_IRQ_SHOCK;
- }
-
- spin_unlock_irqrestore(&ams_info.irq_lock, flags);
-
- ams_info.clear_irq(irqs_to_clear);
-
- mutex_unlock(&ams_info.lock);
-}
-
-/* Call with ams_info.lock held! */
-int ams_sensor_attach(void)
-{
- int result;
- const u32 *prop;
-
- /* Get orientation */
- prop = of_get_property(ams_info.of_node, "orientation", NULL);
- if (!prop)
- return -ENODEV;
- ams_info.orient1 = *prop;
- ams_info.orient2 = *(prop + 1);
-
- /* Register freefall interrupt handler */
- result = pmf_register_irq_client(ams_info.of_node,
- "accel-int-1",
- &ams_freefall_client);
- if (result < 0)
- return -ENODEV;
-
- /* Reset saved irqs */
- ams_info.worker_irqs = 0;
-
- /* Register shock interrupt handler */
- result = pmf_register_irq_client(ams_info.of_node,
- "accel-int-2",
- &ams_shock_client);
- if (result < 0)
- goto release_freefall;
-
- /* Create device */
- ams_info.of_dev = of_platform_device_create(ams_info.of_node, "ams", NULL);
- if (!ams_info.of_dev) {
- result = -ENODEV;
- goto release_shock;
- }
-
- /* Create attributes */
- result = device_create_file(&ams_info.of_dev->dev, &dev_attr_current);
- if (result)
- goto release_of;
-
- ams_info.vflag = !!(ams_info.get_vendor() & 0x10);
-
- /* Init input device */
- result = ams_input_init();
- if (result)
- goto release_device_file;
-
- return result;
-release_device_file:
- device_remove_file(&ams_info.of_dev->dev, &dev_attr_current);
-release_of:
- of_device_unregister(ams_info.of_dev);
-release_shock:
- pmf_unregister_irq_client(&ams_shock_client);
-release_freefall:
- pmf_unregister_irq_client(&ams_freefall_client);
- return result;
-}
-
-int __init ams_init(void)
-{
- struct device_node *np;
-
- spin_lock_init(&ams_info.irq_lock);
- mutex_init(&ams_info.lock);
- INIT_WORK(&ams_info.worker, ams_worker);
-
-#ifdef CONFIG_SENSORS_AMS_I2C
- np = of_find_node_by_name(NULL, "accelerometer");
- if (np && of_device_is_compatible(np, "AAPL,accelerometer_1"))
- /* Found I2C motion sensor */
- return ams_i2c_init(np);
-#endif
-
-#ifdef CONFIG_SENSORS_AMS_PMU
- np = of_find_node_by_name(NULL, "sms");
- if (np && of_device_is_compatible(np, "sms"))
- /* Found PMU motion sensor */
- return ams_pmu_init(np);
-#endif
- return -ENODEV;
-}
-
-void ams_sensor_detach(void)
-{
- /* Remove input device */
- ams_input_exit();
-
- /* Remove attributes */
- device_remove_file(&ams_info.of_dev->dev, &dev_attr_current);
-
- /* Flush interrupt worker
- *
- * We do this after ams_info.exit(), because an interrupt might
- * have arrived before disabling them.
- */
- flush_scheduled_work();
-
- /* Remove device */
- of_device_unregister(ams_info.of_dev);
-
- /* Remove handler */
- pmf_unregister_irq_client(&ams_shock_client);
- pmf_unregister_irq_client(&ams_freefall_client);
-}
-
-static void __exit ams_exit(void)
-{
- /* Shut down implementation */
- ams_info.exit();
-}
-
-MODULE_AUTHOR("Stelian Pop, Michael Hanselmann");
-MODULE_DESCRIPTION("Apple Motion Sensor driver");
-MODULE_LICENSE("GPL");
-
-module_init(ams_init);
-module_exit(ams_exit);
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