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path: root/packages/obsolete/nslu2/nslu2-kernel/2.6.15/40-rtc-class.patch
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Diffstat (limited to 'packages/obsolete/nslu2/nslu2-kernel/2.6.15/40-rtc-class.patch')
-rw-r--r--packages/obsolete/nslu2/nslu2-kernel/2.6.15/40-rtc-class.patch2719
1 files changed, 0 insertions, 2719 deletions
diff --git a/packages/obsolete/nslu2/nslu2-kernel/2.6.15/40-rtc-class.patch b/packages/obsolete/nslu2/nslu2-kernel/2.6.15/40-rtc-class.patch
deleted file mode 100644
index feea3f2f8b..0000000000
--- a/packages/obsolete/nslu2/nslu2-kernel/2.6.15/40-rtc-class.patch
+++ /dev/null
@@ -1,2719 +0,0 @@
---- linux-nslu2.orig/include/linux/rtc.h 2006-01-03 15:31:18.000000000 +0100
-+++ linux-nslu2/include/linux/rtc.h 2006-01-03 15:34:24.000000000 +0100
-@@ -91,8 +91,81 @@ struct rtc_pll_info {
- #define RTC_PLL_GET _IOR('p', 0x11, struct rtc_pll_info) /* Get PLL correction */
- #define RTC_PLL_SET _IOW('p', 0x12, struct rtc_pll_info) /* Set PLL correction */
-
-+/* interrupt flags */
-+#define RTC_IRQF 0x80 /* any of the following is active */
-+#define RTC_PF 0x40
-+#define RTC_AF 0x20
-+#define RTC_UF 0x10
-+
- #ifdef __KERNEL__
-
-+#include <linux/device.h>
-+#include <linux/seq_file.h>
-+#include <linux/cdev.h>
-+#include <linux/poll.h>
-+
-+struct rtc_class_ops {
-+ int (*open)(struct device *);
-+ void (*release)(struct device *);
-+ int (*ioctl)(struct device *, unsigned int, unsigned long);
-+ int (*read_time)(struct device *, struct rtc_time *);
-+ int (*set_time)(struct device *, struct rtc_time *);
-+ int (*read_alarm)(struct device *, struct rtc_wkalrm *);
-+ int (*set_alarm)(struct device *, struct rtc_wkalrm *);
-+ int (*proc)(struct device *, struct seq_file *);
-+ int (*set_mmss)(struct device *, unsigned long secs);
-+ int (*irq_set_state)(struct device *, int enabled);
-+ int (*irq_set_freq)(struct device *, int freq);
-+};
-+
-+#define RTC_DEVICE_NAME_SIZE 20
-+struct rtc_task;
-+
-+struct rtc_device
-+{
-+ int id;
-+ struct module *owner;
-+ struct rw_semaphore lock;
-+ struct class_device class_dev;
-+ struct rtc_class_ops *ops;
-+ char name[RTC_DEVICE_NAME_SIZE];
-+
-+ struct cdev char_dev;
-+ struct semaphore char_sem;
-+
-+ unsigned long irq_data;
-+ spinlock_t irq_lock;
-+ wait_queue_head_t irq_queue;
-+ struct fasync_struct *async_queue;
-+
-+ spinlock_t irq_task_lock;
-+ struct rtc_task *irq_task;
-+ int irq_freq;
-+};
-+#define to_rtc_device(d) container_of(d, struct rtc_device, class_dev)
-+
-+extern struct rtc_device *rtc_device_register(char *name,
-+ struct device *dev,
-+ struct rtc_class_ops *ops,
-+ struct module *owner);
-+extern void rtc_device_unregister(struct rtc_device *rdev);
-+extern int rtc_interface_register(struct class_interface *intf);
-+
-+
-+extern int rtc_month_days(unsigned int month, unsigned int year);
-+extern int rtc_valid_tm(struct rtc_time *tm);
-+extern int rtc_tm_to_time(struct rtc_time *tm, unsigned long *time);
-+extern void rtc_time_to_tm(unsigned long time, struct rtc_time *tm);
-+
-+extern int rtc_read_time(struct class_device *class_dev, struct rtc_time *tm);
-+extern int rtc_set_time(struct class_device *class_dev, struct rtc_time *tm);
-+extern int rtc_read_alarm(struct class_device *class_dev,
-+ struct rtc_wkalrm *alrm);
-+extern int rtc_set_alarm(struct class_device *class_dev,
-+ struct rtc_wkalrm *alrm);
-+extern void rtc_update_irq(struct class_device *class_dev,
-+ unsigned long num, unsigned long events);
-+
- typedef struct rtc_task {
- void (*func)(void *private_data);
- void *private_data;
---- linux-nslu2.orig/drivers/Kconfig 2006-01-03 15:31:19.000000000 +0100
-+++ linux-nslu2/drivers/Kconfig 2006-01-04 01:27:31.000000000 +0100
-@@ -66,4 +66,6 @@ source "drivers/infiniband/Kconfig"
-
- source "drivers/sn/Kconfig"
-
-+source "drivers/rtc/Kconfig"
-+
- endmenu
---- linux-nslu2.orig/drivers/Makefile 2006-01-03 15:33:32.000000000 +0100
-+++ linux-nslu2/drivers/Makefile 2006-01-04 01:27:31.000000000 +0100
-@@ -54,6 +54,7 @@ obj-$(CONFIG_USB_GADGET) += usb/gadget/
- obj-$(CONFIG_GAMEPORT) += input/gameport/
- obj-$(CONFIG_INPUT) += input/
- obj-$(CONFIG_I2O) += message/
-+obj-y += rtc/
- obj-$(CONFIG_I2C) += i2c/
- obj-$(CONFIG_W1) += w1/
- obj-$(CONFIG_HWMON) += hwmon/
---- /dev/null 1970-01-01 00:00:00.000000000 +0000
-+++ linux-nslu2/drivers/rtc/class.c 2006-01-03 15:45:19.000000000 +0100
-@@ -0,0 +1,141 @@
-+/*
-+ * RTC subsystem, base class
-+ *
-+ * Copyright (C) 2005 Tower Technologies
-+ * Author: Alessandro Zummo <a.zummo@towertech.it>
-+ *
-+ * class skeleton from drivers/hwmon/hwmon.c
-+ *
-+ * 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; version 2 of the License.
-+*/
-+
-+#include <linux/module.h>
-+#include <linux/rtc.h>
-+#include <linux/kdev_t.h>
-+#include <linux/idr.h>
-+
-+static DEFINE_IDR(rtc_idr);
-+static DECLARE_MUTEX(idr_lock);
-+struct class *rtc_class;
-+
-+static void rtc_device_release(struct class_device *class_dev)
-+{
-+ struct rtc_device *rtc = to_rtc_device(class_dev);
-+ down(&idr_lock);
-+ idr_remove(&rtc_idr, rtc->id);
-+ up(&idr_lock);
-+ kfree(rtc);
-+}
-+
-+/**
-+ * rtc_device_register - register w/ RTC class
-+ * @dev: the device to register
-+ *
-+ * rtc_device_unregister() must be called when the class device is no
-+ * longer needed.
-+ *
-+ * Returns the pointer to the new struct class device.
-+ */
-+struct rtc_device *rtc_device_register(char *name, struct device *dev,
-+ struct rtc_class_ops *ops,
-+ struct module *owner)
-+{
-+ struct rtc_device *rtc;
-+ int id, err;
-+
-+ if (idr_pre_get(&rtc_idr, GFP_KERNEL) == 0) {
-+ err = -ENOMEM;
-+ goto exit;
-+ }
-+
-+
-+ down(&idr_lock);
-+ err = idr_get_new(&rtc_idr, NULL, &id);
-+ up(&idr_lock);
-+
-+ if (err < 0)
-+ goto exit;
-+
-+ id = id & MAX_ID_MASK;
-+
-+ if ((rtc = kzalloc(sizeof(struct rtc_device), GFP_KERNEL)) == NULL) {
-+ err = -ENOMEM;
-+ goto exit_idr;
-+ }
-+
-+ rtc->id = id;
-+ rtc->ops = ops;
-+ rtc->owner = owner;
-+ rtc->class_dev.dev = dev;
-+ rtc->class_dev.class = rtc_class;
-+ rtc->class_dev.release = rtc_device_release;
-+
-+ init_rwsem(&rtc->lock);
-+ spin_lock_init(&rtc->irq_lock);
-+ spin_lock_init(&rtc->irq_task_lock);
-+
-+ strlcpy(rtc->name, name, RTC_DEVICE_NAME_SIZE);
-+ snprintf(rtc->class_dev.class_id, BUS_ID_SIZE, "rtc%d", id);
-+
-+ if ((err = class_device_register(&rtc->class_dev)))
-+ goto exit_kfree;
-+
-+ dev_info(dev, "rtc core: registered %s as %s\n",
-+ rtc->name, rtc->class_dev.class_id);
-+
-+ return rtc;
-+
-+exit_kfree:
-+ kfree(rtc);
-+
-+exit_idr:
-+ idr_remove(&rtc_idr, id);
-+
-+exit:
-+ return ERR_PTR(err);
-+}
-+EXPORT_SYMBOL_GPL(rtc_device_register);
-+
-+
-+/**
-+ * rtc_device_unregister - removes the previously registered RTC class device
-+ *
-+ * @rtc: the RTC class device to destroy
-+ */
-+void rtc_device_unregister(struct rtc_device *rtc)
-+{
-+ down_write(&rtc->lock);
-+ class_device_unregister(&rtc->class_dev);
-+}
-+EXPORT_SYMBOL_GPL(rtc_device_unregister);
-+
-+int rtc_interface_register(struct class_interface *intf)
-+{
-+ intf->class = rtc_class;
-+ return class_interface_register(intf);
-+}
-+EXPORT_SYMBOL_GPL(rtc_interface_register);
-+
-+static int __init rtc_init(void)
-+{
-+ rtc_class = class_create(THIS_MODULE, "rtc");
-+ if (IS_ERR(rtc_class)) {
-+ printk(KERN_ERR "%s: couldn't create class\n", __FILE__);
-+ return PTR_ERR(rtc_class);
-+ }
-+ return 0;
-+}
-+
-+static void __exit rtc_exit(void)
-+{
-+ class_destroy(rtc_class);
-+}
-+
-+module_init(rtc_init);
-+module_exit(rtc_exit);
-+
-+MODULE_AUTHOR("Alessandro Zummo <a.zummo@towerteh.it>");
-+MODULE_DESCRIPTION("RTC class support");
-+MODULE_LICENSE("GPL");
---- /dev/null 1970-01-01 00:00:00.000000000 +0000
-+++ linux-nslu2/drivers/rtc/Kconfig 2006-01-04 01:27:21.000000000 +0100
-@@ -0,0 +1,93 @@
-+#
-+# RTC class/drivers configuration
-+#
-+
-+menu "Real Time Clock"
-+
-+config RTC_CLASS
-+ tristate "RTC class"
-+ depends on EXPERIMENTAL
-+ default y
-+ help
-+ Generic RTC class support. If you say yes here, you will
-+ be allowed to plug one or more RTCs to your system. You will
-+ probably want to enable one of more of the interfaces below.
-+
-+ This driver can also be built as a module. If so, the module
-+ will be called rtc-class.
-+
-+comment "RTC interfaces"
-+ depends on RTC_CLASS
-+
-+config RTC_INTF_SYSFS
-+ tristate "sysfs"
-+ depends on RTC_CLASS && SYSFS
-+ default RTC_CLASS
-+ help
-+ Say yes here if you want to use your RTC using the sysfs
-+ interface, /sys/class/rtc/rtcX .
-+
-+ This driver can also be built as a module. If so, the module
-+ will be called rtc-sysfs.
-+
-+config RTC_INTF_PROC
-+ tristate "proc"
-+ depends on RTC_CLASS && PROC_FS
-+ default RTC_CLASS
-+ help
-+ Say yes here if you want to use your RTC using the proc
-+ interface, /proc/driver/rtc .
-+
-+ This driver can also be built as a module. If so, the module
-+ will be called rtc-proc.
-+
-+config RTC_INTF_DEV
-+ tristate "dev"
-+ depends on RTC_CLASS
-+ default RTC_CLASS
-+ help
-+ Say yes here if you want to use your RTC using the dev
-+ interface, /dev/rtc .
-+
-+ This driver can also be built as a module. If so, the module
-+ will be called rtc-dev.
-+
-+comment "RTC drivers"
-+ depends on RTC_CLASS
-+
-+config RTC_DRV_X1205
-+ tristate "Xicor/Intersil X1205 RTC chip"
-+ depends on RTC_CLASS && I2C
-+ help
-+ If you say yes here you get support for the
-+ Xicor/Intersil X1205 RTC chip.
-+
-+ This driver can also be built as a module. If so, the module
-+ will be called rtc-x1205.
-+
-+config RTC_DRV_DS1672
-+ tristate "Dallas/Maxim DS1672"
-+ depends on RTC_CLASS && I2C
-+ help
-+ If you say yes here you get support for the
-+ Dallas/Maxim DS1672 timekeeping chip.
-+
-+ This driver can also be built as a module. If so, the module
-+ will be called rtc-ds1672.
-+
-+config RTC_DRV_TEST
-+ tristate "Test driver/device"
-+ depends on RTC_CLASS
-+ help
-+ If you say yes here you get support for the
-+ RTC test driver. It's a software RTC which can be
-+ used to test the RTC subsystem APIs. It gets
-+ the time from the system clock.
-+ You want this driver only if you are doing development
-+ on the RTC subsystem. Please read the source code
-+ for further details.
-+
-+ This driver can also be built as a module. If so, the module
-+ will be called rtc-test.
-+
-+endmenu
---- /dev/null 1970-01-01 00:00:00.000000000 +0000
-+++ linux-nslu2/drivers/rtc/Makefile 2006-01-04 01:27:21.000000000 +0100
-@@ -0,0 +1,15 @@
-+#
-+# Makefile for RTC class/drivers.
-+#
-+
-+obj-y += utils.o
-+obj-$(CONFIG_RTC_CLASS) += rtc-core.o
-+rtc-core-y := class.o interface.o
-+obj-$(CONFIG_RTC_INTF_SYSFS) += rtc-sysfs.o
-+obj-$(CONFIG_RTC_INTF_PROC) += rtc-proc.o
-+obj-$(CONFIG_RTC_INTF_DEV) += rtc-dev.o
-+
-+obj-$(CONFIG_RTC_DRV_X1205) += rtc-x1205.o
-+obj-$(CONFIG_RTC_DRV_TEST) += rtc-test.o
-+obj-$(CONFIG_RTC_DRV_DS1672) += rtc-ds1672.o
-+
---- /dev/null 1970-01-01 00:00:00.000000000 +0000
-+++ linux-nslu2/drivers/rtc/interface.c 2006-01-03 15:34:24.000000000 +0100
-@@ -0,0 +1,189 @@
-+/*
-+ * RTC subsystem, interface functions
-+ *
-+ * Copyright (C) 2005 Tower Technologies
-+ * Author: Alessandro Zummo <a.zummo@towertech.it>
-+ *
-+ * based on arch/arm/common/rtctime.c
-+ *
-+ * 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; version 2 of the License.
-+*/
-+
-+#include <linux/rtc.h>
-+
-+extern struct class *rtc_class;
-+
-+int rtc_read_time(struct class_device *class_dev, struct rtc_time *tm)
-+{
-+ int err = -EINVAL;
-+ struct rtc_class_ops *ops = to_rtc_device(class_dev)->ops;
-+
-+ if (ops->read_time) {
-+ memset(tm, 0, sizeof(struct rtc_time));
-+ err = ops->read_time(class_dev->dev, tm);
-+ }
-+ return err;
-+}
-+EXPORT_SYMBOL(rtc_read_time);
-+
-+int rtc_set_time(struct class_device *class_dev, struct rtc_time *tm)
-+{
-+ int err;
-+ struct rtc_class_ops *ops = to_rtc_device(class_dev)->ops;
-+
-+ err = rtc_valid_tm(tm);
-+ if (err == 0 && ops->set_time)
-+ err = ops->set_time(class_dev->dev, tm);
-+
-+ return err;
-+}
-+EXPORT_SYMBOL(rtc_set_time);
-+
-+int rtc_read_alarm(struct class_device *class_dev, struct rtc_wkalrm *alarm)
-+{
-+ struct rtc_class_ops *ops = to_rtc_device(class_dev)->ops;
-+ int err = -EINVAL;
-+
-+ if (ops->read_alarm) {
-+ memset(alarm, 0, sizeof(struct rtc_wkalrm));
-+ err = ops->read_alarm(class_dev->dev, alarm);
-+ }
-+ return err;
-+}
-+EXPORT_SYMBOL(rtc_read_alarm);
-+
-+int rtc_set_alarm(struct class_device *class_dev, struct rtc_wkalrm *alarm)
-+{
-+ int err = -EINVAL;
-+ struct rtc_class_ops *ops = to_rtc_device(class_dev)->ops;
-+
-+ if (ops->set_alarm)
-+ err = ops->set_alarm(class_dev->dev, alarm);
-+ return err;
-+}
-+EXPORT_SYMBOL(rtc_set_alarm);
-+
-+void rtc_update_irq(struct class_device *class_dev,
-+ unsigned long num, unsigned long events)
-+{
-+ struct rtc_device *rtc = to_rtc_device(class_dev);
-+
-+ spin_lock(&rtc->irq_lock);
-+ rtc->irq_data = (rtc->irq_data + (num << 8)) | events;
-+ spin_unlock(&rtc->irq_lock);
-+
-+ spin_lock(&rtc->irq_task_lock);
-+ if (rtc->irq_task)
-+ rtc->irq_task->func(rtc->irq_task->private_data);
-+ spin_unlock(&rtc->irq_task_lock);
-+
-+ wake_up_interruptible(&rtc->irq_queue);
-+ kill_fasync(&rtc->async_queue, SIGIO, POLL_IN);
-+}
-+EXPORT_SYMBOL(rtc_update_irq);
-+
-+struct class_device *rtc_open(char *name)
-+{
-+ struct class_device *class_dev = NULL,
-+ *class_dev_tmp;
-+
-+ down(&rtc_class->sem);
-+ list_for_each_entry(class_dev_tmp, &rtc_class->children, node) {
-+ if (strncmp(class_dev_tmp->class_id, name, BUS_ID_SIZE) == 0) {
-+ class_dev = class_dev_tmp;
-+ break;
-+ }
-+ }
-+ up(&rtc_class->sem);
-+
-+ return class_dev;
-+}
-+EXPORT_SYMBOL(rtc_open);
-+
-+void rtc_close(struct class_device *class_dev)
-+{
-+}
-+EXPORT_SYMBOL(rtc_close);
-+
-+int rtc_irq_register(struct class_device *class_dev, struct rtc_task *task)
-+{
-+ int retval = -EBUSY;
-+ struct rtc_device *rtc = to_rtc_device(class_dev);
-+
-+ if (task == NULL || task->func == NULL)
-+ return -EINVAL;
-+
-+ spin_lock(&rtc->irq_task_lock);
-+ if (rtc->irq_task == NULL) {
-+ rtc->irq_task = task;
-+ retval = 0;
-+ }
-+ spin_unlock(&rtc->irq_task_lock);
-+
-+ return retval;
-+}
-+EXPORT_SYMBOL(rtc_irq_register);
-+
-+void rtc_irq_unregister(struct class_device *class_dev, struct rtc_task *task)
-+{
-+ struct rtc_device *rtc = to_rtc_device(class_dev);
-+
-+ spin_lock(&rtc->irq_task_lock);
-+ if (rtc->irq_task == task)
-+ rtc->irq_task = NULL;
-+ spin_unlock(&rtc->irq_task_lock);
-+}
-+EXPORT_SYMBOL(rtc_irq_unregister);
-+
-+int rtc_irq_set_state(struct class_device *class_dev, struct rtc_task *task, int enabled)
-+{
-+ int err = 0;
-+ unsigned long flags;
-+ struct rtc_device *rtc = to_rtc_device(class_dev);
-+
-+ spin_lock_irqsave(&rtc->irq_task_lock, flags);
-+ if (rtc->irq_task != task)
-+ err = -ENXIO;
-+ spin_unlock_irqrestore(&rtc->irq_task_lock, flags);
-+
-+ if (err == 0)
-+ err = rtc->ops->irq_set_state(class_dev->dev, enabled);
-+
-+ return err;
-+}
-+EXPORT_SYMBOL(rtc_irq_set_state);
-+
-+int rtc_irq_set_freq(struct class_device *class_dev, struct rtc_task *task, int freq)
-+{
-+ int err = 0, tmp = 0;
-+ unsigned long flags;
-+ struct rtc_device *rtc = to_rtc_device(class_dev);
-+
-+ /* allowed range is 2-8192 */
-+ if (freq < 2 || freq > 8192)
-+ return -EINVAL;
-+
-+/* if ((freq > rtc_max_user_freq) && (!capable(CAP_SYS_RESOURCE)))
-+ return -EACCES;
-+*/
-+ /* check if freq is a power of 2 */
-+ while (freq > (1 << tmp))
-+ tmp++;
-+
-+ if (freq != (1 << tmp))
-+ return -EINVAL;
-+
-+ spin_lock_irqsave(&rtc->irq_task_lock, flags);
-+ if (rtc->irq_task != task)
-+ err = -ENXIO;
-+ spin_unlock_irqrestore(&rtc->irq_task_lock, flags);
-+
-+ if (err == 0) {
-+ if ((err = rtc->ops->irq_set_freq(class_dev->dev, freq)) == 0)
-+ rtc->irq_freq = freq;
-+ }
-+ return err;
-+
-+}
---- /dev/null 1970-01-01 00:00:00.000000000 +0000
-+++ linux-nslu2/drivers/rtc/utils.c 2006-01-03 15:34:24.000000000 +0100
-@@ -0,0 +1,97 @@
-+/*
-+ * RTC subsystem, utility functions
-+ *
-+ * Copyright (C) 2005 Tower Technologies
-+ * Author: Alessandro Zummo <a.zummo@towertech.it>
-+ *
-+ * based on arch/arm/common/rtctime.c
-+ *
-+ * 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; version 2 of the License.
-+*/
-+
-+#include <linux/rtc.h>
-+
-+static const unsigned char rtc_days_in_month[] = {
-+ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
-+};
-+
-+#define LEAPS_THRU_END_OF(y) ((y)/4 - (y)/100 + (y)/400)
-+#define LEAP_YEAR(year) ((!(year % 4) && (year % 100)) || !(year % 400))
-+
-+int rtc_month_days(unsigned int month, unsigned int year)
-+{
-+ return rtc_days_in_month[month] + (LEAP_YEAR(year) && month == 1);
-+}
-+EXPORT_SYMBOL(rtc_month_days);
-+
-+/*
-+ * Convert seconds since 01-01-1970 00:00:00 to Gregorian date.
-+ */
-+void rtc_time_to_tm(unsigned long time, struct rtc_time *tm)
-+{
-+ int days, month, year;
-+
-+ days = time / 86400;
-+ time -= days * 86400;
-+
-+ tm->tm_wday = (days + 4) % 7;
-+
-+ year = 1970 + days / 365;
-+ days -= (year - 1970) * 365
-+ + LEAPS_THRU_END_OF(year - 1)
-+ - LEAPS_THRU_END_OF(1970 - 1);
-+ if (days < 0) {
-+ year -= 1;
-+ days += 365 + LEAP_YEAR(year);
-+ }
-+ tm->tm_year = year - 1900;
-+ tm->tm_yday = days + 1;
-+
-+ for (month = 0; month < 11; month++) {
-+ int newdays;
-+
-+ newdays = days - rtc_month_days(month, year);
-+ if (newdays < 0)
-+ break;
-+ days = newdays;
-+ }
-+ tm->tm_mon = month;
-+ tm->tm_mday = days + 1;
-+
-+ tm->tm_hour = time / 3600;
-+ time -= tm->tm_hour * 3600;
-+ tm->tm_min = time / 60;
-+ tm->tm_sec = time - tm->tm_min * 60;
-+}
-+EXPORT_SYMBOL(rtc_time_to_tm);
-+
-+/*
-+ * Does the rtc_time represent a valid date/time?
-+ */
-+int rtc_valid_tm(struct rtc_time *tm)
-+{
-+ if (tm->tm_year < 70 ||
-+ tm->tm_mon >= 12 ||
-+ tm->tm_mday < 1 ||
-+ tm->tm_mday > rtc_month_days(tm->tm_mon, tm->tm_year + 1900) ||
-+ tm->tm_hour >= 24 ||
-+ tm->tm_min >= 60 ||
-+ tm->tm_sec >= 60)
-+ return -EINVAL;
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL(rtc_valid_tm);
-+
-+/*
-+ * Convert Gregorian date to seconds since 01-01-1970 00:00:00.
-+ */
-+int rtc_tm_to_time(struct rtc_time *tm, unsigned long *time)
-+{
-+ *time = mktime(tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
-+ tm->tm_hour, tm->tm_min, tm->tm_sec);
-+ return 0;
-+}
-+EXPORT_SYMBOL(rtc_tm_to_time);
---- linux-nslu2.orig/arch/arm/Kconfig 2006-01-04 01:27:04.000000000 +0100
-+++ linux-nslu2/arch/arm/Kconfig 2006-01-04 01:27:31.000000000 +0100
-@@ -750,6 +750,8 @@ source "drivers/usb/Kconfig"
-
- source "drivers/mmc/Kconfig"
-
-+source "drivers/rtc/Kconfig"
-+
- endmenu
-
- source "fs/Kconfig"
---- linux-nslu2.orig/arch/arm/common/rtctime.c 2006-01-04 01:27:04.000000000 +0100
-+++ linux-nslu2/arch/arm/common/rtctime.c 2006-01-04 01:27:09.000000000 +0100
-@@ -40,89 +40,6 @@ static struct rtc_ops *rtc_ops;
-
- #define rtc_epoch 1900UL
-
--static const unsigned char days_in_month[] = {
-- 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
--};
--
--#define LEAPS_THRU_END_OF(y) ((y)/4 - (y)/100 + (y)/400)
--#define LEAP_YEAR(year) ((!(year % 4) && (year % 100)) || !(year % 400))
--
--static int month_days(unsigned int month, unsigned int year)
--{
-- return days_in_month[month] + (LEAP_YEAR(year) && month == 1);
--}
--
--/*
-- * Convert seconds since 01-01-1970 00:00:00 to Gregorian date.
-- */
--void rtc_time_to_tm(unsigned long time, struct rtc_time *tm)
--{
-- int days, month, year;
--
-- days = time / 86400;
-- time -= days * 86400;
--
-- tm->tm_wday = (days + 4) % 7;
--
-- year = 1970 + days / 365;
-- days -= (year - 1970) * 365
-- + LEAPS_THRU_END_OF(year - 1)
-- - LEAPS_THRU_END_OF(1970 - 1);
-- if (days < 0) {
-- year -= 1;
-- days += 365 + LEAP_YEAR(year);
-- }
-- tm->tm_year = year - 1900;
-- tm->tm_yday = days + 1;
--
-- for (month = 0; month < 11; month++) {
-- int newdays;
--
-- newdays = days - month_days(month, year);
-- if (newdays < 0)
-- break;
-- days = newdays;
-- }
-- tm->tm_mon = month;
-- tm->tm_mday = days + 1;
--
-- tm->tm_hour = time / 3600;
-- time -= tm->tm_hour * 3600;
-- tm->tm_min = time / 60;
-- tm->tm_sec = time - tm->tm_min * 60;
--}
--EXPORT_SYMBOL(rtc_time_to_tm);
--
--/*
-- * Does the rtc_time represent a valid date/time?
-- */
--int rtc_valid_tm(struct rtc_time *tm)
--{
-- if (tm->tm_year < 70 ||
-- tm->tm_mon >= 12 ||
-- tm->tm_mday < 1 ||
-- tm->tm_mday > month_days(tm->tm_mon, tm->tm_year + 1900) ||
-- tm->tm_hour >= 24 ||
-- tm->tm_min >= 60 ||
-- tm->tm_sec >= 60)
-- return -EINVAL;
--
-- return 0;
--}
--EXPORT_SYMBOL(rtc_valid_tm);
--
--/*
-- * Convert Gregorian date to seconds since 01-01-1970 00:00:00.
-- */
--int rtc_tm_to_time(struct rtc_time *tm, unsigned long *time)
--{
-- *time = mktime(tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
-- tm->tm_hour, tm->tm_min, tm->tm_sec);
--
-- return 0;
--}
--EXPORT_SYMBOL(rtc_tm_to_time);
--
- /*
- * Calculate the next alarm time given the requested alarm time mask
- * and the current time.
-@@ -141,13 +58,13 @@ void rtc_next_alarm_time(struct rtc_time
- next->tm_sec = alrm->tm_sec;
- }
-
--static inline int rtc_read_time(struct rtc_ops *ops, struct rtc_time *tm)
-+static inline int rtc_arm_read_time(struct rtc_ops *ops, struct rtc_time *tm)
- {
- memset(tm, 0, sizeof(struct rtc_time));
- return ops->read_time(tm);
- }
-
--static inline int rtc_set_time(struct rtc_ops *ops, struct rtc_time *tm)
-+static inline int rtc_arm_set_time(struct rtc_ops *ops, struct rtc_time *tm)
- {
- int ret;
-
-@@ -158,7 +75,7 @@ static inline int rtc_set_time(struct rt
- return ret;
- }
-
--static inline int rtc_read_alarm(struct rtc_ops *ops, struct rtc_wkalrm *alrm)
-+static inline int rtc_arm_read_alarm(struct rtc_ops *ops, struct rtc_wkalrm *alrm)
- {
- int ret = -EINVAL;
- if (ops->read_alarm) {
-@@ -168,7 +85,7 @@ static inline int rtc_read_alarm(struct
- return ret;
- }
-
--static inline int rtc_set_alarm(struct rtc_ops *ops, struct rtc_wkalrm *alrm)
-+static inline int rtc_arm_set_alarm(struct rtc_ops *ops, struct rtc_wkalrm *alrm)
- {
- int ret = -EINVAL;
- if (ops->set_alarm)
-@@ -256,7 +173,7 @@ static int rtc_ioctl(struct inode *inode
-
- switch (cmd) {
- case RTC_ALM_READ:
-- ret = rtc_read_alarm(ops, &alrm);
-+ ret = rtc_arm_read_alarm(ops, &alrm);
- if (ret)
- break;
- ret = copy_to_user(uarg, &alrm.time, sizeof(tm));
-@@ -278,11 +195,11 @@ static int rtc_ioctl(struct inode *inode
- alrm.time.tm_wday = -1;
- alrm.time.tm_yday = -1;
- alrm.time.tm_isdst = -1;
-- ret = rtc_set_alarm(ops, &alrm);
-+ ret = rtc_arm_set_alarm(ops, &alrm);
- break;
-
- case RTC_RD_TIME:
-- ret = rtc_read_time(ops, &tm);
-+ ret = rtc_arm_read_time(ops, &tm);
- if (ret)
- break;
- ret = copy_to_user(uarg, &tm, sizeof(tm));
-@@ -300,7 +217,7 @@ static int rtc_ioctl(struct inode *inode
- ret = -EFAULT;
- break;
- }
-- ret = rtc_set_time(ops, &tm);
-+ ret = rtc_arm_set_time(ops, &tm);
- break;
-
- case RTC_EPOCH_SET:
-@@ -331,11 +248,11 @@ static int rtc_ioctl(struct inode *inode
- ret = -EFAULT;
- break;
- }
-- ret = rtc_set_alarm(ops, &alrm);
-+ ret = rtc_arm_set_alarm(ops, &alrm);
- break;
-
- case RTC_WKALM_RD:
-- ret = rtc_read_alarm(ops, &alrm);
-+ ret = rtc_arm_read_alarm(ops, &alrm);
- if (ret)
- break;
- ret = copy_to_user(uarg, &alrm, sizeof(alrm));
-@@ -425,7 +342,7 @@ static int rtc_read_proc(char *page, cha
- struct rtc_time tm;
- char *p = page;
-
-- if (rtc_read_time(ops, &tm) == 0) {
-+ if (rtc_arm_read_time(ops, &tm) == 0) {
- p += sprintf(p,
- "rtc_time\t: %02d:%02d:%02d\n"
- "rtc_date\t: %04d-%02d-%02d\n"
-@@ -435,7 +352,7 @@ static int rtc_read_proc(char *page, cha
- rtc_epoch);
- }
-
-- if (rtc_read_alarm(ops, &alrm) == 0) {
-+ if (rtc_arm_read_alarm(ops, &alrm) == 0) {
- p += sprintf(p, "alrm_time\t: ");
- if ((unsigned int)alrm.time.tm_hour <= 24)
- p += sprintf(p, "%02d:", alrm.time.tm_hour);
---- linux-nslu2.orig/include/asm-arm/rtc.h 2006-01-04 01:27:04.000000000 +0100
-+++ linux-nslu2/include/asm-arm/rtc.h 2006-01-04 01:27:09.000000000 +0100
-@@ -25,9 +25,6 @@ struct rtc_ops {
- int (*proc)(char *buf);
- };
-
--void rtc_time_to_tm(unsigned long, struct rtc_time *);
--int rtc_tm_to_time(struct rtc_time *, unsigned long *);
--int rtc_valid_tm(struct rtc_time *);
- void rtc_next_alarm_time(struct rtc_time *, struct rtc_time *, struct rtc_time *);
- void rtc_update(unsigned long, unsigned long);
- int register_rtc(struct rtc_ops *);
---- /dev/null 1970-01-01 00:00:00.000000000 +0000
-+++ linux-nslu2/drivers/rtc/rtc-sysfs.c 2006-01-04 01:27:12.000000000 +0100
-@@ -0,0 +1,125 @@
-+/*
-+ * RTC subsystem, sysfs interface
-+ *
-+ * Copyright (C) 2005 Tower Technologies
-+ * Author: Alessandro Zummo <a.zummo@towertech.it>
-+ *
-+ * 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; version 2 of the License.
-+*/
-+
-+#include <linux/module.h>
-+#include <linux/rtc.h>
-+
-+/* device attributes */
-+
-+static ssize_t rtc_sysfs_show_name(struct class_device *dev, char *buf)
-+{
-+ return sprintf(buf, "%s\n", to_rtc_device(dev)->name);
-+}
-+static CLASS_DEVICE_ATTR(name, S_IRUGO, rtc_sysfs_show_name, NULL);
-+
-+static ssize_t rtc_sysfs_show_date(struct class_device *dev, char *buf)
-+{
-+ ssize_t retval = 0;
-+ struct rtc_device *rtc = to_rtc_device(dev);
-+ struct rtc_time tm;
-+
-+ if (down_read_trylock(&rtc->lock) == 0)
-+ return -ENODEV;
-+
-+ if (rtc_read_time(dev, &tm) == 0) {
-+ retval = sprintf(buf, "%04d-%02d-%02d\n",
-+ tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday);
-+ }
-+
-+ up_read(&rtc->lock);
-+ return retval;
-+}
-+static CLASS_DEVICE_ATTR(date, S_IRUGO, rtc_sysfs_show_date, NULL);
-+
-+static ssize_t rtc_sysfs_show_time(struct class_device *dev, char *buf)
-+{
-+ ssize_t retval = 0;
-+ struct rtc_device *rtc = to_rtc_device(dev);
-+ struct rtc_time tm;
-+
-+ if (down_read_trylock(&rtc->lock) == 0)
-+ return -ENODEV;
-+
-+ if (rtc_read_time(dev, &tm) == 0) {
-+ retval = sprintf(buf, "%02d:%02d:%02d\n",
-+ tm.tm_hour, tm.tm_min, tm.tm_sec);
-+ }
-+
-+ up_read(&rtc->lock);
-+ return retval;
-+}
-+static CLASS_DEVICE_ATTR(time, S_IRUGO, rtc_sysfs_show_time, NULL);
-+
-+static ssize_t rtc_sysfs_show_since_epoch(struct class_device *dev, char *buf)
-+{
-+ ssize_t retval = 0;
-+ struct rtc_device *rtc = to_rtc_device(dev);
-+ struct rtc_time tm;
-+
-+ if (down_read_trylock(&rtc->lock) == 0)
-+ return -ENODEV;
-+
-+ if (rtc_read_time(dev, &tm) == 0) {
-+ unsigned long time;
-+ rtc_tm_to_time(&tm, &time);
-+ retval = sprintf(buf, "%lu\n", time);
-+ }
-+
-+ up_read(&rtc->lock);
-+ return retval;
-+}
-+static CLASS_DEVICE_ATTR(since_epoch, S_IRUGO, rtc_sysfs_show_since_epoch, NULL);
-+
-+/* insertion/removal hooks */
-+
-+static int __devinit rtc_sysfs_add_device(struct class_device *class_dev,
-+ struct class_interface *class_intf)
-+{
-+ class_device_create_file(class_dev, &class_device_attr_name);
-+ class_device_create_file(class_dev, &class_device_attr_date);
-+ class_device_create_file(class_dev, &class_device_attr_time);
-+ class_device_create_file(class_dev, &class_device_attr_since_epoch);
-+ dev_info(class_dev->dev, "rtc intf: sysfs\n");
-+ return 0;
-+}
-+
-+static void rtc_sysfs_remove_device(struct class_device *class_dev,
-+ struct class_interface *class_intf)
-+{
-+ class_device_remove_file(class_dev, &class_device_attr_name);
-+ class_device_remove_file(class_dev, &class_device_attr_date);
-+ class_device_remove_file(class_dev, &class_device_attr_time);
-+ class_device_remove_file(class_dev, &class_device_attr_since_epoch);
-+}
-+
-+/* interface registration */
-+
-+struct class_interface rtc_sysfs_interface = {
-+ .add = &rtc_sysfs_add_device,
-+ .remove = &rtc_sysfs_remove_device,
-+};
-+
-+static int __init rtc_sysfs_init(void)
-+{
-+ return rtc_interface_register(&rtc_sysfs_interface);
-+}
-+
-+static void __exit rtc_sysfs_exit(void)
-+{
-+ class_interface_unregister(&rtc_sysfs_interface);
-+}
-+
-+module_init(rtc_sysfs_init);
-+module_exit(rtc_sysfs_exit);
-+
-+MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
-+MODULE_DESCRIPTION("RTC class sysfs interface");
-+MODULE_LICENSE("GPL");
---- /dev/null 1970-01-01 00:00:00.000000000 +0000
-+++ linux-nslu2/drivers/rtc/rtc-proc.c 2006-01-04 01:27:14.000000000 +0100
-@@ -0,0 +1,158 @@
-+/*
-+ * RTC subsystem, proc interface
-+ *
-+ * Copyright (C) 2005 Tower Technologies
-+ * Author: Alessandro Zummo <a.zummo@towertech.it>
-+ *
-+ * based on arch/arm/common/rtctime.c
-+ *
-+ * 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; version 2 of the License.
-+*/
-+
-+#include <linux/module.h>
-+#include <linux/rtc.h>
-+#include <linux/proc_fs.h>
-+#include <linux/seq_file.h>
-+
-+static struct class_device *rtc_dev = NULL;
-+static DECLARE_MUTEX(rtc_sem);
-+
-+static int rtc_proc_show(struct seq_file *seq, void *offset)
-+{
-+ struct class_device *class_dev = seq->private;
-+ struct rtc_class_ops *ops = to_rtc_device(class_dev)->ops;
-+ struct rtc_wkalrm alrm;
-+ struct rtc_time tm;
-+
-+ if (rtc_read_time(class_dev, &tm) == 0) {
-+ seq_printf(seq,
-+ "rtc_time\t: %02d:%02d:%02d\n"
-+ "rtc_date\t: %04d-%02d-%02d\n",
-+ tm.tm_hour, tm.tm_min, tm.tm_sec,
-+ tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday);
-+ }
-+
-+ if (rtc_read_alarm(class_dev, &alrm) == 0) {
-+ seq_printf(seq, "alrm_time\t: ");
-+ if ((unsigned int)alrm.time.tm_hour <= 24)
-+ seq_printf(seq, "%02d:", alrm.time.tm_hour);
-+ else
-+ seq_printf(seq, "**:");
-+ if ((unsigned int)alrm.time.tm_min <= 59)
-+ seq_printf(seq, "%02d:", alrm.time.tm_min);
-+ else
-+ seq_printf(seq, "**:");
-+ if ((unsigned int)alrm.time.tm_sec <= 59)
-+ seq_printf(seq, "%02d\n", alrm.time.tm_sec);
-+ else
-+ seq_printf(seq, "**\n");
-+
-+ seq_printf(seq, "alrm_date\t: ");
-+ if ((unsigned int)alrm.time.tm_year <= 200)
-+ seq_printf(seq, "%04d-", alrm.time.tm_year + 1900);
-+ else
-+ seq_printf(seq, "****-");
-+ if ((unsigned int)alrm.time.tm_mon <= 11)
-+ seq_printf(seq, "%02d-", alrm.time.tm_mon + 1);
-+ else
-+ seq_printf(seq, "**-");
-+ if ((unsigned int)alrm.time.tm_mday <= 31)
-+ seq_printf(seq, "%02d\n", alrm.time.tm_mday);
-+ else
-+ seq_printf(seq, "**\n");
-+ seq_printf(seq, "alrm_wakeup\t: %s\n",
-+ alrm.enabled ? "yes" : "no");
-+ seq_printf(seq, "alrm_pending\t: %s\n",
-+ alrm.pending ? "yes" : "no");
-+ }
-+
-+ if (ops->proc)
-+ ops->proc(class_dev->dev, seq);
-+
-+ return 0;
-+}
-+
-+static int rtc_proc_open(struct inode *inode, struct file *file)
-+{
-+ struct class_device *class_dev = PDE(inode)->data;
-+
-+ if (!try_module_get(THIS_MODULE))
-+ return -ENODEV;
-+
-+ return single_open(file, rtc_proc_show, class_dev);
-+}
-+
-+static int rtc_proc_release(struct inode *inode, struct file *file)
-+{
-+ int res = single_release(inode, file);
-+ module_put(THIS_MODULE);
-+ return res;
-+}
-+
-+static struct file_operations rtc_proc_fops = {
-+ .open = rtc_proc_open,
-+ .read = seq_read,
-+ .llseek = seq_lseek,
-+ .release = rtc_proc_release,
-+};
-+
-+static int rtc_proc_add_device(struct class_device *class_dev,
-+ struct class_interface *class_intf)
-+{
-+ down(&rtc_sem);
-+ if (rtc_dev == NULL) {
-+ struct proc_dir_entry *ent;
-+
-+ rtc_dev = class_dev;
-+
-+ if ((ent = create_proc_entry("driver/rtc", 0, NULL))) {
-+ struct rtc_device *rtc = to_rtc_device(class_dev);
-+
-+ ent->proc_fops = &rtc_proc_fops;
-+ ent->owner = rtc->owner;
-+ ent->data = class_dev;
-+
-+ dev_info(class_dev->dev, "rtc intf: proc\n");
-+ }
-+ else
-+ rtc_dev = NULL;
-+ }
-+ up(&rtc_sem);
-+
-+ return 0;
-+}
-+
-+static void rtc_proc_remove_device(struct class_device *class_dev,
-+ struct class_interface *class_intf)
-+{
-+ down(&rtc_sem);
-+ if (rtc_dev == class_dev) {
-+ remove_proc_entry("driver/rtc", NULL);
-+ rtc_dev = NULL;
-+ }
-+ up(&rtc_sem);
-+}
-+
-+struct class_interface rtc_proc_interface = {
-+ .add = &rtc_proc_add_device,
-+ .remove = &rtc_proc_remove_device,
-+};
-+
-+static int __init rtc_proc_init(void)
-+{
-+ return rtc_interface_register(&rtc_proc_interface);
-+}
-+
-+static void __exit rtc_proc_exit(void)
-+{
-+ class_interface_unregister(&rtc_proc_interface);
-+}
-+
-+module_init(rtc_proc_init);
-+module_exit(rtc_proc_exit);
-+
-+MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
-+MODULE_DESCRIPTION("RTC class proc interface");
-+MODULE_LICENSE("GPL");
---- /dev/null 1970-01-01 00:00:00.000000000 +0000
-+++ linux-nslu2/drivers/rtc/rtc-dev.c 2006-01-04 01:27:15.000000000 +0100
-@@ -0,0 +1,372 @@
-+/*
-+ * RTC subsystem, dev interface
-+ *
-+ * Copyright (C) 2005 Tower Technologies
-+ * Author: Alessandro Zummo <a.zummo@towertech.it>
-+ *
-+ * based on arch/arm/common/rtctime.c
-+ *
-+ * 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; version 2 of the License.
-+*/
-+
-+#include <linux/module.h>
-+#include <linux/rtc.h>
-+
-+static dev_t rtc_devt;
-+
-+#define RTC_DEV_MAX 16 /* 16 RTCs should be enough for everyone... */
-+
-+static int rtc_dev_open(struct inode *inode, struct file *file)
-+{
-+ int err;
-+ struct rtc_device *rtc = container_of(inode->i_cdev,
-+ struct rtc_device, char_dev);
-+ struct rtc_class_ops *ops = rtc->ops;
-+
-+ /* We keep the lock as long as the device is in use
-+ * and return immediately if busy
-+ */
-+ if (down_trylock(&rtc->char_sem))
-+ return -EBUSY;
-+
-+ file->private_data = &rtc->class_dev;
-+
-+ err = ops->open ? ops->open(rtc->class_dev.dev) : 0;
-+ if (err == 0) {
-+
-+ spin_lock_irq(&rtc->irq_lock);
-+ rtc->irq_data = 0;
-+ spin_unlock_irq(&rtc->irq_lock);
-+
-+ return 0;
-+ }
-+
-+ /* something has gone wrong, release the lock */
-+ up(&rtc->char_sem);
-+ return err;
-+}
-+
-+
-+static ssize_t
-+rtc_dev_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
-+{
-+ struct rtc_device *rtc = to_rtc_device(file->private_data);
-+
-+ DECLARE_WAITQUEUE(wait, current);
-+ unsigned long data;
-+ ssize_t ret;
-+
-+ if (count < sizeof(unsigned long))
-+ return -EINVAL;
-+
-+ add_wait_queue(&rtc->irq_queue, &wait);
-+ do {
-+ __set_current_state(TASK_INTERRUPTIBLE);
-+
-+ spin_lock_irq(&rtc->irq_lock);
-+ data = rtc->irq_data;
-+ rtc->irq_data = 0;
-+ spin_unlock_irq(&rtc->irq_lock);
-+
-+ if (data != 0) {
-+ ret = 0;
-+ break;
-+ }
-+ if (file->f_flags & O_NONBLOCK) {
-+ ret = -EAGAIN;
-+ break;
-+ }
-+ if (signal_pending(current)) {
-+ ret = -ERESTARTSYS;
-+ break;
-+ }
-+ schedule();
-+ } while (1);
-+ set_current_state(TASK_RUNNING);
-+ remove_wait_queue(&rtc->irq_queue, &wait);
-+
-+ if (ret == 0) {
-+ ret = put_user(data, (unsigned long __user *)buf);
-+ if (ret == 0)
-+ ret = sizeof(unsigned long);
-+ }
-+ return ret;
-+}
-+
-+static unsigned int rtc_dev_poll(struct file *file, poll_table *wait)
-+{
-+ struct rtc_device *rtc = to_rtc_device(file->private_data);
-+ unsigned long data;
-+
-+ poll_wait(file, &rtc->irq_queue, wait);
-+
-+ spin_lock_irq(&rtc->irq_lock);
-+ data = rtc->irq_data;
-+ spin_unlock_irq(&rtc->irq_lock);
-+
-+ return data != 0 ? POLLIN | POLLRDNORM : 0;
-+}
-+
-+static int rtc_dev_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
-+ unsigned long arg)
-+{
-+ int err = 0;
-+ struct class_device *class_dev = file->private_data;
-+ struct rtc_device *rtc = to_rtc_device(class_dev);
-+ struct rtc_class_ops *ops = rtc->ops;
-+ struct rtc_time tm;
-+ struct rtc_wkalrm alarm;
-+ void __user *uarg = (void __user *) arg;
-+
-+ /* avoid conflicting IRQ users */
-+ if (cmd == RTC_PIE_ON || cmd == RTC_PIE_OFF || cmd == RTC_IRQP_SET) {
-+ spin_lock(&rtc->irq_task_lock);
-+ if (rtc->irq_task)
-+ err = -EBUSY;
-+ spin_unlock(&rtc->irq_task_lock);
-+
-+ if (err < 0)
-+ return err;
-+ }
-+
-+ /* try the driver's ioctl interface */
-+ if (ops->ioctl) {
-+ err = ops->ioctl(class_dev->dev, cmd, arg);
-+ if (err < 0 && err != -EINVAL)
-+ return err;
-+ }
-+
-+ /* if the driver does not provide the ioctl interface
-+ * or if that particular ioctl was not implemented
-+ * (-EINVAL), we will try to emulate here.
-+ */
-+
-+ switch (cmd) {
-+ case RTC_ALM_READ:
-+ if ((err = rtc_read_alarm(class_dev, &alarm)) < 0)
-+ return err;
-+
-+ if ((err = copy_to_user(uarg, &alarm.time, sizeof(tm))))
-+ return -EFAULT;
-+ break;
-+
-+ case RTC_ALM_SET:
-+ if ((err = copy_from_user(&alarm.time, uarg, sizeof(tm))))
-+ return -EFAULT;
-+
-+ alarm.enabled = 0;
-+ alarm.pending = 0;
-+ alarm.time.tm_mday = -1;
-+ alarm.time.tm_mon = -1;
-+ alarm.time.tm_year = -1;
-+ alarm.time.tm_wday = -1;
-+ alarm.time.tm_yday = -1;
-+ alarm.time.tm_isdst = -1;
-+ err = rtc_set_alarm(class_dev, &alarm);
-+ break;
-+
-+ case RTC_RD_TIME:
-+ if ((err = rtc_read_time(class_dev, &tm)) < 0)
-+ return err;
-+
-+ if ((err = copy_to_user(uarg, &tm, sizeof(tm))))
-+ return -EFAULT;
-+ break;
-+
-+ case RTC_SET_TIME:
-+ if (!capable(CAP_SYS_TIME))
-+ return -EACCES;
-+
-+ if ((err = copy_from_user(&tm, uarg, sizeof(tm))))
-+ return -EFAULT;
-+
-+ err = rtc_set_time(class_dev, &tm);
-+ break;
-+#if 0
-+ case RTC_EPOCH_SET:
-+#ifndef rtc_epoch
-+ /*
-+ * There were no RTC clocks before 1900.
-+ */
-+ if (arg < 1900) {
-+ err = -EINVAL;
-+ break;
-+ }
-+ if (!capable(CAP_SYS_TIME)) {
-+ err = -EACCES;
-+ break;
-+ }
-+ rtc_epoch = arg;
-+ err = 0;
-+#endif
-+ break;
-+
-+ case RTC_EPOCH_READ:
-+ err = put_user(rtc_epoch, (unsigned long __user *)uarg);
-+ break;
-+#endif
-+ case RTC_WKALM_SET:
-+ if ((err = copy_from_user(&alarm, uarg, sizeof(alarm))))
-+ return -EFAULT;
-+
-+ err = rtc_set_alarm(class_dev, &alarm);
-+ break;
-+
-+ case RTC_WKALM_RD:
-+ if ((err = rtc_read_alarm(class_dev, &alarm)) < 0)
-+ return err;
-+
-+ if ((err = copy_to_user(uarg, &alarm, sizeof(alarm))))
-+ return -EFAULT;
-+ break;
-+
-+ default:
-+ err = -EINVAL;
-+ break;
-+ }
-+
-+ return err;
-+}
-+
-+static int rtc_dev_release(struct inode *inode, struct file *file)
-+{
-+ struct rtc_device *rtc = to_rtc_device(file->private_data);
-+
-+ if (rtc->ops->release)
-+ rtc->ops->release(rtc->class_dev.dev);
-+
-+ spin_lock_irq(&rtc->irq_lock);
-+ rtc->irq_data = 0;
-+ spin_unlock_irq(&rtc->irq_lock);
-+
-+ up(&rtc->char_sem);
-+ return 0;
-+}
-+
-+static int rtc_dev_fasync(int fd, struct file *file, int on)
-+{
-+ struct rtc_device *rtc = to_rtc_device(file->private_data);
-+ return fasync_helper(fd, file, on, &rtc->async_queue);
-+}
-+
-+static struct file_operations rtc_dev_fops = {
-+ .owner = THIS_MODULE,
-+ .llseek = no_llseek,
-+ .read = rtc_dev_read,
-+ .poll = rtc_dev_poll,
-+ .ioctl = rtc_dev_ioctl,
-+ .open = rtc_dev_open,
-+ .release = rtc_dev_release,
-+ .fasync = rtc_dev_fasync,
-+};
-+
-+static ssize_t rtc_dev_show_dev(struct class_device *class_dev, char *buf)
-+{
-+ return print_dev_t(buf, class_dev->devt);
-+}
-+static CLASS_DEVICE_ATTR(dev, S_IRUGO, rtc_dev_show_dev, NULL);
-+
-+/* insertion/removal hooks */
-+
-+static int rtc_dev_add_device(struct class_device *class_dev,
-+ struct class_interface *class_intf)
-+{
-+ struct rtc_device *rtc = to_rtc_device(class_dev);
-+
-+ if (rtc->id >= RTC_DEV_MAX) {
-+ dev_err(class_dev->dev, "too many RTCs\n");
-+ return -EINVAL;
-+ }
-+
-+ init_MUTEX(&rtc->char_sem);
-+ spin_lock_init(&rtc->irq_lock);
-+ init_waitqueue_head(&rtc->irq_queue);
-+
-+ cdev_init(&rtc->char_dev, &rtc_dev_fops);
-+ rtc->char_dev.owner = rtc->owner;
-+ class_dev->devt = MKDEV(MAJOR(rtc_devt), rtc->id);
-+
-+ if (cdev_add(&rtc->char_dev, class_dev->devt, 1)) {
-+ cdev_del(&rtc->char_dev);
-+
-+ dev_err(class_dev->dev,
-+ "failed to add char device %d:%d\n",
-+ MAJOR(class_dev->devt),
-+ MINOR(class_dev->devt));
-+
-+ class_dev->devt = MKDEV(0, 0);
-+ return -ENODEV;
-+ }
-+
-+ class_device_create_file(class_dev, &class_device_attr_dev);
-+
-+ dev_info(class_dev->dev, "rtc intf: dev (%d:%d)\n",
-+ MAJOR(class_dev->devt),
-+ MINOR(class_dev->devt));
-+
-+ kobject_hotplug(&class_dev->kobj, KOBJ_ADD);
-+
-+ return 0;
-+}
-+
-+static void rtc_dev_remove_device(struct class_device *class_dev,
-+ struct class_interface *class_intf)
-+{
-+ struct rtc_device *rtc = to_rtc_device(class_dev);
-+
-+ class_device_remove_file(class_dev, &class_device_attr_dev);
-+
-+ if (MAJOR(class_dev->devt)) {
-+ dev_dbg(class_dev->dev, "removing char %d:%d\n",
-+ MAJOR(class_dev->devt),
-+ MINOR(class_dev->devt));
-+ cdev_del(&rtc->char_dev);
-+
-+ kobject_hotplug(&class_dev->kobj, KOBJ_REMOVE);
-+
-+ class_dev->devt = MKDEV(0, 0);
-+ }
-+}
-+
-+/* interface registration */
-+
-+struct class_interface rtc_dev_interface = {
-+ .add = &rtc_dev_add_device,
-+ .remove = &rtc_dev_remove_device,
-+};
-+
-+static int __init rtc_dev_init(void)
-+{
-+ int err;
-+
-+ if ((err = alloc_chrdev_region(&rtc_devt, 0, RTC_DEV_MAX, "rtc")) < 0) {
-+ printk(KERN_ERR "%s: failed to allocate char dev region\n",
-+ __FILE__);
-+ return err;
-+ }
-+
-+ if ((err = rtc_interface_register(&rtc_dev_interface)) < 0) {
-+ printk(KERN_ERR "%s: failed to register the interface\n",
-+ __FILE__);
-+ unregister_chrdev_region(rtc_devt, RTC_DEV_MAX);
-+ return err;
-+ }
-+
-+ return 0;
-+}
-+
-+static void __exit rtc_dev_exit(void)
-+{
-+ class_interface_unregister(&rtc_dev_interface);
-+
-+ unregister_chrdev_region(rtc_devt, RTC_DEV_MAX);
-+}
-+
-+module_init(rtc_dev_init);
-+module_exit(rtc_dev_exit);
-+
-+MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
-+MODULE_DESCRIPTION("RTC class dev interface");
-+MODULE_LICENSE("GPL");
---- /dev/null 1970-01-01 00:00:00.000000000 +0000
-+++ linux-nslu2/drivers/rtc/rtc-x1205.c 2006-01-04 01:27:17.000000000 +0100
-@@ -0,0 +1,725 @@
-+/*
-+ * An i2c driver for the Xicor/Intersil X1205 RTC
-+ * Copyright 2004 Karen Spearel
-+ * Copyright 2005 Alessandro Zummo
-+ *
-+ * please send all reports to:
-+ * kas11 at tampabay dot rr dot com
-+ * a dot zummo at towertech dot it
-+ *
-+ * based on a lot of other RTC drivers.
-+ *
-+ * 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.
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/init.h>
-+#include <linux/slab.h>
-+#include <linux/err.h>
-+#include <linux/i2c.h>
-+#include <linux/string.h>
-+#include <linux/bcd.h>
-+#include <linux/rtc.h>
-+#include <linux/delay.h>
-+
-+#define DRV_VERSION "1.0.5"
-+
-+/* Addresses to scan: none. This chip is located at
-+ * 0x6f and uses a two bytes register addressing.
-+ * Two bytes need to be written to read a single register,
-+ * while most other chips just require one and take the second
-+ * one as the data to be written. To prevent corrupting
-+ * unknown chips, the user must explicitely set the probe parameter.
-+ */
-+
-+static unsigned short normal_i2c[] = { I2C_CLIENT_END };
-+
-+/* Insmod parameters */
-+I2C_CLIENT_INSMOD;
-+I2C_CLIENT_MODULE_PARM(hctosys,
-+ "Set the system time from the hardware clock upon initialization");
-+
-+/* offsets into CCR area */
-+
-+#define CCR_SEC 0
-+#define CCR_MIN 1
-+#define CCR_HOUR 2
-+#define CCR_MDAY 3
-+#define CCR_MONTH 4
-+#define CCR_YEAR 5
-+#define CCR_WDAY 6
-+#define CCR_Y2K 7
-+
-+#define X1205_REG_SR 0x3F /* status register */
-+#define X1205_REG_Y2K 0x37
-+#define X1205_REG_DW 0x36
-+#define X1205_REG_YR 0x35
-+#define X1205_REG_MO 0x34
-+#define X1205_REG_DT 0x33
-+#define X1205_REG_HR 0x32
-+#define X1205_REG_MN 0x31
-+#define X1205_REG_SC 0x30
-+#define X1205_REG_DTR 0x13
-+#define X1205_REG_ATR 0x12
-+#define X1205_REG_INT 0x11
-+#define X1205_REG_0 0x10
-+#define X1205_REG_Y2K1 0x0F
-+#define X1205_REG_DWA1 0x0E
-+#define X1205_REG_YRA1 0x0D
-+#define X1205_REG_MOA1 0x0C
-+#define X1205_REG_DTA1 0x0B
-+#define X1205_REG_HRA1 0x0A
-+#define X1205_REG_MNA1 0x09
-+#define X1205_REG_SCA1 0x08
-+#define X1205_REG_Y2K0 0x07
-+#define X1205_REG_DWA0 0x06
-+#define X1205_REG_YRA0 0x05
-+#define X1205_REG_MOA0 0x04
-+#define X1205_REG_DTA0 0x03
-+#define X1205_REG_HRA0 0x02
-+#define X1205_REG_MNA0 0x01
-+#define X1205_REG_SCA0 0x00
-+
-+#define X1205_CCR_BASE 0x30 /* Base address of CCR */
-+#define X1205_ALM0_BASE 0x00 /* Base address of ALARM0 */
-+
-+#define X1205_SR_RTCF 0x01 /* Clock failure */
-+#define X1205_SR_WEL 0x02 /* Write Enable Latch */
-+#define X1205_SR_RWEL 0x04 /* Register Write Enable */
-+
-+#define X1205_DTR_DTR0 0x01
-+#define X1205_DTR_DTR1 0x02
-+#define X1205_DTR_DTR2 0x04
-+
-+#define X1205_HR_MIL 0x80 /* Set in ccr.hour for 24 hr mode */
-+
-+/* Prototypes */
-+static int x1205_attach(struct i2c_adapter *adapter);
-+static int x1205_detach(struct i2c_client *client);
-+static int x1205_probe(struct i2c_adapter *adapter, int address, int kind);
-+
-+static struct i2c_driver x1205_driver = {
-+ .owner = THIS_MODULE,
-+ .name = "x1205",
-+ .flags = I2C_DF_NOTIFY,
-+ .attach_adapter = &x1205_attach,
-+ .detach_client = &x1205_detach,
-+};
-+
-+/*
-+ * In the routines that deal directly with the x1205 hardware, we use
-+ * rtc_time -- month 0-11, hour 0-23, yr = calendar year-epoch
-+ * Epoch is initialized as 2000. Time is set to UTC.
-+ */
-+static int x1205_get_datetime(struct i2c_client *client, struct rtc_time *tm,
-+ unsigned char reg_base)
-+{
-+ unsigned char dt_addr[2] = { 0, reg_base };
-+
-+ unsigned char buf[8];
-+
-+ struct i2c_msg msgs[] = {
-+ { client->addr, 0, 2, dt_addr }, /* setup read ptr */
-+ { client->addr, I2C_M_RD, 8, buf }, /* read date */
-+ };
-+
-+ /* read date registers */
-+ if ((i2c_transfer(client->adapter, &msgs[0], 2)) != 2) {
-+ dev_err(&client->dev, "%s: read error\n", __FUNCTION__);
-+ return -EIO;
-+ }
-+
-+ dev_dbg(&client->dev,
-+ "%s: raw read data - sec=%02x, min=%02x, hr=%02x, "
-+ "mday=%02x, mon=%02x, year=%02x, wday=%02x, y2k=%02x\n",
-+ __FUNCTION__,
-+ buf[0], buf[1], buf[2], buf[3],
-+ buf[4], buf[5], buf[6], buf[7]);
-+
-+ tm->tm_sec = BCD2BIN(buf[CCR_SEC]);
-+ tm->tm_min = BCD2BIN(buf[CCR_MIN]);
-+ tm->tm_hour = BCD2BIN(buf[CCR_HOUR] & 0x3F); /* hr is 0-23 */
-+ tm->tm_mday = BCD2BIN(buf[CCR_MDAY]);
-+ tm->tm_mon = BCD2BIN(buf[CCR_MONTH]) - 1; /* mon is 0-11 */
-+ tm->tm_year = BCD2BIN(buf[CCR_YEAR])
-+ + (BCD2BIN(buf[CCR_Y2K]) * 100) - 1900;
-+ tm->tm_wday = buf[CCR_WDAY];
-+
-+ dev_dbg(&client->dev, "%s: tm is secs=%d, mins=%d, hours=%d, "
-+ "mday=%d, mon=%d, year=%d, wday=%d\n",
-+ __FUNCTION__,
-+ tm->tm_sec, tm->tm_min, tm->tm_hour,
-+ tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday);
-+
-+ return 0;
-+}
-+
-+static int x1205_get_status(struct i2c_client *client, unsigned char *sr)
-+{
-+ static unsigned char sr_addr[2] = { 0, X1205_REG_SR };
-+
-+ struct i2c_msg msgs[] = {
-+ { client->addr, 0, 2, sr_addr }, /* setup read ptr */
-+ { client->addr, I2C_M_RD, 1, sr }, /* read status */
-+ };
-+
-+ /* read status register */
-+ if ((i2c_transfer(client->adapter, &msgs[0], 2)) != 2) {
-+ dev_err(&client->dev, "%s: read error\n", __FUNCTION__);
-+ return -EIO;
-+ }
-+
-+ return 0;
-+}
-+
-+static int x1205_set_datetime(struct i2c_client *client, struct rtc_time *tm,
-+ int datetoo, u8 reg_base)
-+{
-+ int i, xfer;
-+ unsigned char buf[8];
-+
-+ static const unsigned char wel[3] = { 0, X1205_REG_SR,
-+ X1205_SR_WEL };
-+
-+ static const unsigned char rwel[3] = { 0, X1205_REG_SR,
-+ X1205_SR_WEL | X1205_SR_RWEL };
-+
-+ static const unsigned char diswe[3] = { 0, X1205_REG_SR, 0 };
-+
-+ dev_dbg(&client->dev,
-+ "%s: secs=%d, mins=%d, hours=%d\n",
-+ __FUNCTION__,
-+ tm->tm_sec, tm->tm_min, tm->tm_hour);
-+
-+ buf[CCR_SEC] = BIN2BCD(tm->tm_sec);
-+ buf[CCR_MIN] = BIN2BCD(tm->tm_min);
-+
-+ /* set hour and 24hr bit */
-+ buf[CCR_HOUR] = BIN2BCD(tm->tm_hour) | X1205_HR_MIL;
-+
-+ /* should we also set the date? */
-+ if (datetoo) {
-+ dev_dbg(&client->dev,
-+ "%s: mday=%d, mon=%d, year=%d, wday=%d\n",
-+ __FUNCTION__,
-+ tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday);
-+
-+ buf[CCR_MDAY] = BIN2BCD(tm->tm_mday);
-+
-+ /* month, 1 - 12 */
-+ buf[CCR_MONTH] = BIN2BCD(tm->tm_mon + 1);
-+
-+ /* year, since the rtc epoch*/
-+ buf[CCR_YEAR] = BIN2BCD(tm->tm_year % 100);
-+ buf[CCR_WDAY] = tm->tm_wday & 0x07;
-+ buf[CCR_Y2K] = BIN2BCD(tm->tm_year / 100);
-+ }
-+
-+ /* this sequence is required to unlock the chip */
-+ xfer = i2c_master_send(client, wel, 3);
-+ if (xfer != 3) {
-+ dev_err(&client->dev, "%s: wel - %d\n", __FUNCTION__, xfer);
-+ return -EIO;
-+ }
-+
-+ xfer = i2c_master_send(client, rwel, 3);
-+ if (xfer != 3) {
-+ dev_err(&client->dev, "%s: rwel - %d\n", __FUNCTION__, xfer);
-+ return -EIO;
-+ }
-+
-+ /* write register's data */
-+ for (i = 0; i < (datetoo ? 8 : 3); i++) {
-+ unsigned char rdata[3] = { 0, reg_base + i, buf[i] };
-+
-+ xfer = i2c_master_send(client, rdata, 3);
-+ if (xfer != 3) {
-+ dev_err(&client->dev,
-+ "%s: xfer=%d addr=%02x, data=%02x\n",
-+ __FUNCTION__,
-+ xfer, rdata[1], rdata[2]);
-+ return -EIO;
-+ }
-+ };
-+
-+ /* disable further writes */
-+ xfer = i2c_master_send(client, diswe, 3);
-+ if (xfer != 3) {
-+ dev_err(&client->dev, "%s: diswe - %d\n", __FUNCTION__, xfer);
-+ return -EIO;
-+ }
-+
-+ return 0;
-+}
-+
-+static int x1205_fix_osc(struct i2c_client *client)
-+{
-+ int err;
-+ struct rtc_time tm;
-+
-+ tm.tm_hour = 0;
-+ tm.tm_min = 0;
-+ tm.tm_sec = 0;
-+
-+ if ((err = x1205_set_datetime(client, &tm, 0, X1205_CCR_BASE)) < 0)
-+ dev_err(&client->dev,
-+ "unable to restart the clock\n");
-+
-+ return err;
-+}
-+
-+static int x1205_get_dtrim(struct i2c_client *client, int *trim)
-+{
-+ unsigned char dtr;
-+ static unsigned char dtr_addr[2] = { 0, X1205_REG_DTR };
-+
-+ struct i2c_msg msgs[] = {
-+ { client->addr, 0, 2, dtr_addr }, /* setup read ptr */
-+ { client->addr, I2C_M_RD, 1, &dtr }, /* read dtr */
-+ };
-+
-+ /* read dtr register */
-+ if ((i2c_transfer(client->adapter, &msgs[0], 2)) != 2) {
-+ dev_err(&client->dev, "%s: read error\n", __FUNCTION__);
-+ return -EIO;
-+ }
-+
-+ dev_dbg(&client->dev, "%s: raw dtr=%x\n", __FUNCTION__, dtr);
-+
-+ *trim = 0;
-+
-+ if (dtr & X1205_DTR_DTR0)
-+ *trim += 20;
-+
-+ if (dtr & X1205_DTR_DTR1)
-+ *trim += 10;
-+
-+ if (dtr & X1205_DTR_DTR2)
-+ *trim = -*trim;
-+
-+ return 0;
-+}
-+
-+static int x1205_get_atrim(struct i2c_client *client, int *trim)
-+{
-+ s8 atr;
-+ static unsigned char atr_addr[2] = { 0, X1205_REG_ATR };
-+
-+ struct i2c_msg msgs[] = {
-+ { client->addr, 0, 2, atr_addr }, /* setup read ptr */
-+ { client->addr, I2C_M_RD, 1, &atr }, /* read atr */
-+ };
-+
-+ /* read atr register */
-+ if ((i2c_transfer(client->adapter, &msgs[0], 2)) != 2) {
-+ dev_err(&client->dev, "%s: read error\n", __FUNCTION__);
-+ return -EIO;
-+ }
-+
-+ dev_dbg(&client->dev, "%s: raw atr=%x\n", __FUNCTION__, atr);
-+
-+ /* atr is a two's complement value on 6 bits,
-+ * perform sign extension. The formula is
-+ * Catr = (atr * 0.25pF) + 11.00pF.
-+ */
-+ if (atr & 0x20)
-+ atr |= 0xC0;
-+
-+ dev_dbg(&client->dev, "%s: raw atr=%x (%d)\n", __FUNCTION__, atr, atr);
-+
-+ *trim = (atr * 250) + 11000;
-+
-+ dev_dbg(&client->dev, "%s: real=%d\n", __FUNCTION__, *trim);
-+
-+ return 0;
-+}
-+
-+static int x1205_hctosys(struct i2c_client *client)
-+{
-+ int err;
-+
-+ struct rtc_time tm;
-+ struct timespec tv;
-+ unsigned char sr;
-+
-+ if ((err = x1205_get_status(client, &sr)) < 0)
-+ return err;
-+
-+ /* Don't set if we had a power failure */
-+ if (sr & X1205_SR_RTCF)
-+ return -EINVAL;
-+
-+ if ((err = x1205_get_datetime(client, &tm, X1205_CCR_BASE)) < 0)
-+ return err;
-+
-+ /* IMPORTANT: the RTC only stores whole seconds. It is arbitrary
-+ * whether it stores the most close value or the value with partial
-+ * seconds truncated. However, it is important that we use it to store
-+ * the truncated value. This is because otherwise it is necessary,
-+ * in an rtc sync function, to read both xtime.tv_sec and
-+ * xtime.tv_nsec. On some processors (i.e. ARM), an atomic read
-+ * of >32bits is not possible. So storing the most close value would
-+ * slow down the sync API. So here we have the truncated value and
-+ * the best guess is to add 0.5s.
-+ */
-+
-+ tv.tv_nsec = NSEC_PER_SEC >> 1;
-+
-+ rtc_tm_to_time(&tm, &tv.tv_sec);
-+
-+ do_settimeofday(&tv);
-+
-+ dev_info(&client->dev,
-+ "setting the system clock to %d-%d-%d %d:%d:%d\n",
-+ tm.tm_year + 1900, tm.tm_mon + 1,
-+ tm.tm_mday, tm.tm_hour, tm.tm_min,
-+ tm.tm_sec);
-+
-+ return 0;
-+}
-+
-+struct x1205_limit
-+{
-+ unsigned char reg;
-+ unsigned char mask;
-+ unsigned char min;
-+ unsigned char max;
-+};
-+
-+static int x1205_validate_client(struct i2c_client *client)
-+{
-+ int i, xfer;
-+
-+ /* Probe array. We will read the register at the specified
-+ * address and check if the given bits are zero.
-+ */
-+ static const unsigned char probe_zero_pattern[] = {
-+ /* register, mask */
-+ X1205_REG_SR, 0x18,
-+ X1205_REG_DTR, 0xF8,
-+ X1205_REG_ATR, 0xC0,
-+ X1205_REG_INT, 0x18,
-+ X1205_REG_0, 0xFF,
-+ };
-+
-+ static const struct x1205_limit probe_limits_pattern[] = {
-+ /* register, mask, min, max */
-+ { X1205_REG_Y2K, 0xFF, 19, 20 },
-+ { X1205_REG_DW, 0xFF, 0, 6 },
-+ { X1205_REG_YR, 0xFF, 0, 99 },
-+ { X1205_REG_MO, 0xFF, 0, 12 },
-+ { X1205_REG_DT, 0xFF, 0, 31 },
-+ { X1205_REG_HR, 0x7F, 0, 23 },
-+ { X1205_REG_MN, 0xFF, 0, 59 },
-+ { X1205_REG_SC, 0xFF, 0, 59 },
-+ { X1205_REG_Y2K1, 0xFF, 19, 20 },
-+ { X1205_REG_Y2K0, 0xFF, 19, 20 },
-+ };
-+
-+ /* check that registers have bits a 0 where expected */
-+ for (i = 0; i < ARRAY_SIZE(probe_zero_pattern); i += 2) {
-+ unsigned char buf;
-+
-+ unsigned char addr[2] = { 0, probe_zero_pattern[i] };
-+
-+ struct i2c_msg msgs[2] = {
-+ { client->addr, 0, 2, addr },
-+ { client->addr, I2C_M_RD, 1, &buf },
-+ };
-+
-+ xfer = i2c_transfer(client->adapter, msgs, 2);
-+ if (xfer != 2) {
-+ dev_err(&client->adapter->dev,
-+ "%s: could not read register %x\n",
-+ __FUNCTION__, addr[1]);
-+
-+ return -EIO;
-+ }
-+
-+ if ((buf & probe_zero_pattern[i+1]) != 0) {
-+ dev_err(&client->adapter->dev,
-+ "%s: register=%02x, zero pattern=%d, value=%x\n",
-+ __FUNCTION__, addr[1], i, buf);
-+
-+ return -ENODEV;
-+ }
-+ }
-+
-+ /* check limits (only registers with bcd values) */
-+ for (i = 0; i < ARRAY_SIZE(probe_limits_pattern); i++) {
-+ unsigned char reg, value;
-+
-+ unsigned char addr[2] = { 0, probe_limits_pattern[i].reg };
-+
-+ struct i2c_msg msgs[2] = {
-+ { client->addr, 0, 2, addr },
-+ { client->addr, I2C_M_RD, 1, &reg },
-+ };
-+
-+ xfer = i2c_transfer(client->adapter, msgs, 2);
-+
-+ if (xfer != 2) {
-+ dev_err(&client->adapter->dev,
-+ "%s: could not read register %x\n",
-+ __FUNCTION__, addr[1]);
-+
-+ return -EIO;
-+ }
-+
-+ value = BCD2BIN(reg & probe_limits_pattern[i].mask);
-+
-+ if (value > probe_limits_pattern[i].max ||
-+ value < probe_limits_pattern[i].min) {
-+ dev_dbg(&client->adapter->dev,
-+ "%s: register=%x, lim pattern=%d, value=%d\n",
-+ __FUNCTION__, addr[1], i, value);
-+
-+ return -ENODEV;
-+ }
-+ }
-+
-+ return 0;
-+}
-+
-+static int x1205_rtc_read_alarm(struct device *dev,
-+ struct rtc_wkalrm *alrm)
-+{
-+ return x1205_get_datetime(to_i2c_client(dev),
-+ &alrm->time, X1205_ALM0_BASE);
-+}
-+
-+static int x1205_rtc_set_alarm(struct device *dev,
-+ struct rtc_wkalrm *alrm)
-+{
-+ return x1205_set_datetime(to_i2c_client(dev),
-+ &alrm->time, 1, X1205_ALM0_BASE);
-+}
-+
-+static int x1205_rtc_read_time(struct device *dev,
-+ struct rtc_time *tm)
-+{
-+ return x1205_get_datetime(to_i2c_client(dev),
-+ tm, X1205_CCR_BASE);
-+}
-+
-+static int x1205_rtc_set_time(struct device *dev,
-+ struct rtc_time *tm)
-+{
-+ return x1205_set_datetime(to_i2c_client(dev),
-+ tm, 1, X1205_CCR_BASE);
-+}
-+
-+static int x1205_rtc_set_mmss(struct device *dev, unsigned long secs)
-+{
-+ int err;
-+
-+ struct rtc_time new_tm, old_tm;
-+
-+ if ((err = x1205_rtc_read_time(dev, &old_tm) == 0))
-+ return err;
-+
-+ /* FIXME xtime.tv_nsec = old_tm.tm_sec * 10000000; */
-+ new_tm.tm_sec = secs % 60;
-+ secs /= 60;
-+ new_tm.tm_min = secs % 60;
-+ secs /= 60;
-+ new_tm.tm_hour = secs % 24;
-+
-+ /*
-+ * avoid writing when we're going to change the day
-+ * of the month. We will retry in the next minute.
-+ * This basically means that if the RTC must not drift
-+ * by more than 1 minute in 11 minutes.
-+ */
-+ if ((old_tm.tm_hour == 23 && old_tm.tm_min == 59) ||
-+ (new_tm.tm_hour == 23 && new_tm.tm_min == 59))
-+ return 1;
-+
-+ return x1205_rtc_set_time(dev, &new_tm);
-+}
-+
-+static int x1205_rtc_proc(struct device *dev, struct seq_file *seq)
-+{
-+ int err, dtrim, atrim;
-+
-+ seq_printf(seq, "24hr\t\t: yes\n");
-+
-+ err = x1205_get_dtrim(to_i2c_client(dev), &dtrim);
-+ if (err == 0)
-+ seq_printf(seq, "digital_trim\t: %d ppm\n", dtrim);
-+
-+ err = x1205_get_atrim(to_i2c_client(dev), &atrim);
-+ if (err == 0)
-+ seq_printf(seq, "analog_trim\t: %d.%02d pF\n",
-+ atrim / 1000, atrim % 1000);
-+ return 0;
-+}
-+
-+static struct rtc_class_ops x1205_rtc_ops = {
-+ .proc = x1205_rtc_proc,
-+ .read_time = x1205_rtc_read_time,
-+ .set_time = x1205_rtc_set_time,
-+ .read_alarm = x1205_rtc_read_alarm,
-+ .set_alarm = x1205_rtc_set_alarm,
-+ .set_mmss = x1205_rtc_set_mmss,
-+};
-+
-+static ssize_t x1205_sysfs_show_atrim(struct device *dev,
-+ struct device_attribute *attr, char *buf)
-+{
-+ int atrim;
-+
-+ if (x1205_get_atrim(to_i2c_client(dev), &atrim) == 0) {
-+ return sprintf(buf, "%d.%02d pF\n",
-+ atrim / 1000, atrim % 1000); }
-+ return 0;
-+}
-+static DEVICE_ATTR(atrim, S_IRUGO, x1205_sysfs_show_atrim, NULL);
-+
-+static ssize_t x1205_sysfs_show_dtrim(struct device *dev,
-+ struct device_attribute *attr, char *buf)
-+{
-+ int dtrim;
-+
-+ if (x1205_get_dtrim(to_i2c_client(dev), &dtrim) == 0) {
-+ return sprintf(buf, "%d ppm\n", dtrim);
-+ }
-+ return 0;
-+}
-+static DEVICE_ATTR(dtrim, S_IRUGO, x1205_sysfs_show_dtrim, NULL);
-+
-+
-+static int x1205_attach(struct i2c_adapter *adapter)
-+{
-+ dev_dbg(&adapter->dev, "%s\n", __FUNCTION__);
-+
-+ return i2c_probe(adapter, &addr_data, x1205_probe);
-+}
-+
-+static int x1205_probe(struct i2c_adapter *adapter, int address, int kind)
-+{
-+ int err = 0;
-+ unsigned char sr;
-+ struct i2c_client *client;
-+ struct rtc_device *rtc;
-+
-+ dev_dbg(&adapter->dev, "%s\n", __FUNCTION__);
-+
-+ if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) {
-+ err = -ENODEV;
-+ goto exit;
-+ }
-+
-+ if (!(client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL))) {
-+ err = -ENOMEM;
-+ goto exit;
-+ }
-+
-+ /* I2C client */
-+ client->addr = address;
-+ client->driver = &x1205_driver;
-+ client->adapter = adapter;
-+
-+ strlcpy(client->name, x1205_driver.name, I2C_NAME_SIZE);
-+
-+ /* Verify the chip is really an X1205 */
-+ if (kind < 0) {
-+ if (x1205_validate_client(client) < 0) {
-+ err = -ENODEV;
-+ goto exit_kfree;
-+ }
-+ }
-+
-+ /* Inform the i2c layer */
-+ if ((err = i2c_attach_client(client)))
-+ goto exit_kfree;
-+
-+ dev_info(&client->dev, "chip found, driver version " DRV_VERSION "\n");
-+
-+ rtc = rtc_device_register(x1205_driver.name, &client->dev,
-+ &x1205_rtc_ops, THIS_MODULE);
-+
-+ if (IS_ERR(rtc)) {
-+ err = PTR_ERR(rtc);
-+ dev_err(&client->dev,
-+ "unable to register the class device\n");
-+ goto exit_detach;
-+ }
-+
-+ i2c_set_clientdata(client, rtc);
-+
-+ /* Check for power failures and eventualy enable the osc */
-+ if ((err = x1205_get_status(client, &sr)) == 0) {
-+ if (sr & X1205_SR_RTCF) {
-+ dev_err(&client->dev,
-+ "power failure detected, "
-+ "please set the clock\n");
-+ udelay(50);
-+ x1205_fix_osc(client);
-+ }
-+ }
-+ else
-+ dev_err(&client->dev, "couldn't read status\n");
-+
-+ /* If requested, set the system time */
-+ if (hctosys) {
-+ if ((err = x1205_hctosys(client)) < 0)
-+ dev_err(&client->dev,
-+ "unable to set the system clock\n");
-+ }
-+
-+ device_create_file(&client->dev, &dev_attr_atrim);
-+ device_create_file(&client->dev, &dev_attr_dtrim);
-+
-+ return 0;
-+
-+exit_detach:
-+ i2c_detach_client(client);
-+
-+exit_kfree:
-+ kfree(client);
-+
-+exit:
-+ return err;
-+}
-+
-+static int x1205_detach(struct i2c_client *client)
-+{
-+ int err;
-+ struct rtc_device *rtc = i2c_get_clientdata(client);
-+
-+ dev_dbg(&client->dev, "%s\n", __FUNCTION__);
-+
-+ if (rtc)
-+ rtc_device_unregister(rtc);
-+
-+ if ((err = i2c_detach_client(client)))
-+ return err;
-+
-+ kfree(client);
-+
-+ return 0;
-+}
-+
-+static int __init x1205_init(void)
-+{
-+ return i2c_add_driver(&x1205_driver);
-+}
-+
-+static void __exit x1205_exit(void)
-+{
-+ i2c_del_driver(&x1205_driver);
-+}
-+
-+MODULE_AUTHOR(
-+ "Karen Spearel <kas11@tampabay.rr.com>, "
-+ "Alessandro Zummo <a.zummo@towertech.it>");
-+MODULE_DESCRIPTION("Xicor/Intersil X1205 RTC driver");
-+MODULE_LICENSE("GPL");
-+MODULE_VERSION(DRV_VERSION);
-+
-+module_init(x1205_init);
-+module_exit(x1205_exit);
---- /dev/null 1970-01-01 00:00:00.000000000 +0000
-+++ linux-nslu2/drivers/rtc/rtc-test.c 2006-01-04 01:27:19.000000000 +0100
-@@ -0,0 +1,189 @@
-+/*
-+ * An RTC test device/driver
-+ * Copyright (C) 2005 Tower Technologies
-+ * Author: Alessandro Zummo <a.zummo@towertech.it>
-+ *
-+ * 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.
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/err.h>
-+#include <linux/rtc.h>
-+#include <linux/platform_device.h>
-+
-+static int test_rtc_read_alarm(struct device *dev,
-+ struct rtc_wkalrm *alrm)
-+{
-+ return 0;
-+}
-+
-+static int test_rtc_set_alarm(struct device *dev,
-+ struct rtc_wkalrm *alrm)
-+{
-+ return 0;
-+}
-+
-+static int test_rtc_read_time(struct device *dev,
-+ struct rtc_time *tm)
-+{
-+ rtc_time_to_tm(get_seconds(), tm);
-+ return 0;
-+}
-+
-+static int test_rtc_set_time(struct device *dev,
-+ struct rtc_time *tm)
-+{
-+ return 0;
-+}
-+
-+static int test_rtc_set_mmss(struct device *dev, unsigned long secs)
-+{
-+ return 0;
-+}
-+
-+static int test_rtc_proc(struct device *dev, struct seq_file *seq)
-+{
-+ struct platform_device *plat_dev = to_platform_device(dev);
-+
-+ seq_printf(seq, "24hr\t\t: yes\n");
-+ seq_printf(seq, "test\t\t: yes\n");
-+ seq_printf(seq, "id\t\t: %d\n", plat_dev->id);
-+
-+ return 0;
-+}
-+
-+static int test_rtc_ioctl(struct device *dev, unsigned int cmd,
-+ unsigned long arg)
-+{
-+ /* We do support interrupts, they're generated
-+ * using the sysfs interface.
-+ */
-+ switch (cmd) {
-+ case RTC_PIE_ON:
-+ case RTC_PIE_OFF:
-+ case RTC_UIE_ON:
-+ case RTC_UIE_OFF:
-+ case RTC_AIE_ON:
-+ case RTC_AIE_OFF:
-+ return 0;
-+
-+ default:
-+ return -EINVAL;
-+ }
-+}
-+
-+static struct rtc_class_ops test_rtc_ops = {
-+ .proc = test_rtc_proc,
-+ .read_time = test_rtc_read_time,
-+ .set_time = test_rtc_set_time,
-+ .read_alarm = test_rtc_read_alarm,
-+ .set_alarm = test_rtc_set_alarm,
-+ .set_mmss = test_rtc_set_mmss,
-+ .ioctl = test_rtc_ioctl,
-+};
-+
-+static ssize_t test_irq_show(struct device *dev,
-+ struct device_attribute *attr, char *buf)
-+{
-+ return sprintf(buf, "%d\n", 42);
-+}
-+static ssize_t test_irq_store(struct device *dev,
-+ struct device_attribute *attr,
-+ const char *buf, size_t count)
-+{
-+ int retval;
-+ struct platform_device *plat_dev = to_platform_device(dev);
-+ struct rtc_device *rtc = platform_get_drvdata(plat_dev);
-+
-+ retval = count;
-+ if (strncmp(buf, "tick", 4) == 0)
-+ rtc_update_irq(&rtc->class_dev, 1, RTC_PF | RTC_IRQF);
-+ else if (strncmp(buf, "alarm", 5) == 0)
-+ rtc_update_irq(&rtc->class_dev, 1, RTC_AF | RTC_IRQF);
-+ else if (strncmp(buf, "update", 6) == 0)
-+ rtc_update_irq(&rtc->class_dev, 1, RTC_UF | RTC_IRQF);
-+ else
-+ retval = -EINVAL;
-+
-+ return retval;
-+}
-+static DEVICE_ATTR(irq, S_IRUGO | S_IWUSR, test_irq_show, test_irq_store);
-+
-+static int test_probe(struct platform_device *plat_dev)
-+{
-+ int err;
-+ struct rtc_device *rtc = rtc_device_register("test", &plat_dev->dev,
-+ &test_rtc_ops, THIS_MODULE);
-+ if (IS_ERR(rtc)) {
-+ err = PTR_ERR(rtc);
-+ dev_err(&plat_dev->dev,
-+ "unable to register the class device\n");
-+ return err;
-+ }
-+ device_create_file(&plat_dev->dev, &dev_attr_irq);
-+
-+ platform_set_drvdata(plat_dev, rtc);
-+
-+ return 0;
-+}
-+
-+static int test_remove(struct platform_device *plat_dev)
-+{
-+ struct rtc_device *rtc = platform_get_drvdata(plat_dev);
-+
-+ rtc_device_unregister(rtc);
-+ device_remove_file(&plat_dev->dev, &dev_attr_irq);
-+
-+ return 0;
-+}
-+
-+static void test_release(struct device * dev)
-+{
-+}
-+
-+struct platform_device test_dev_zero = {
-+ .name = "rtc-test",
-+ .id = 0,
-+ .dev.release = test_release,
-+};
-+
-+struct platform_device test_dev_one = {
-+ .name = "rtc-test",
-+ .id = 1,
-+ .dev.release = test_release,
-+};
-+
-+struct platform_driver test_drv = {
-+ .probe = test_probe,
-+ .remove = test_remove,
-+ .driver = {
-+ .name = "rtc-test",
-+ .owner = THIS_MODULE,
-+ },
-+};
-+
-+static int __init test_init(void)
-+{
-+ platform_device_register(&test_dev_zero);
-+ platform_device_register(&test_dev_one);
-+ platform_driver_register(&test_drv);
-+
-+ return 0;
-+}
-+
-+static void __exit test_exit(void)
-+{
-+ platform_driver_unregister(&test_drv);
-+ platform_device_unregister(&test_dev_zero);
-+ platform_device_unregister(&test_dev_one);
-+}
-+
-+MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
-+MODULE_DESCRIPTION("RTC test driver/device");
-+MODULE_LICENSE("GPL");
-+
-+module_init(test_init);
-+module_exit(test_exit);
---- /dev/null 1970-01-01 00:00:00.000000000 +0000
-+++ linux-nslu2/drivers/rtc/rtc-ds1672.c 2006-01-04 01:27:21.000000000 +0100
-@@ -0,0 +1,266 @@
-+/*
-+ * An rtc/i2c driver for the Dallas DS1672
-+ * Copyright 2005 Alessandro Zummo
-+ *
-+ * 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.
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/i2c.h>
-+#include <linux/rtc.h>
-+
-+#define DRV_VERSION "0.1"
-+
-+/* Addresses to scan: none. This chip cannot be detected. */
-+static unsigned short normal_i2c[] = { I2C_CLIENT_END };
-+
-+/* Insmod parameters */
-+I2C_CLIENT_INSMOD;
-+I2C_CLIENT_MODULE_PARM(hctosys,
-+ "Set the system time from the hardware clock upon initialization");
-+
-+/* Registers */
-+
-+#define DS1672_REG_CNT_BASE 0
-+#define DS1672_REG_CONTROL 4
-+#define DS1672_REG_TRICKLE 5
-+
-+
-+/* Prototypes */
-+static int ds1672_probe(struct i2c_adapter *adapter, int address, int kind);
-+
-+/*
-+ * In the routines that deal directly with the ds1672 hardware, we use
-+ * rtc_time -- month 0-11, hour 0-23, yr = calendar year-epoch
-+ * Epoch is initialized as 2000. Time is set to UTC.
-+ */
-+static int ds1672_get_datetime(struct i2c_client *client, struct rtc_time *tm)
-+{
-+ unsigned long time;
-+ unsigned char buf[4];
-+
-+ dev_dbg(&client->dev,
-+ "%s: raw read data - counters=%02x,%02x,%02x,%02x\n"
-+ __FUNCTION__,
-+ buf[0], buf[1], buf[2], buf[3]);
-+
-+ time = (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf[0];
-+
-+ rtc_time_to_tm(time, tm);
-+
-+ dev_dbg(&client->dev, "%s: tm is secs=%d, mins=%d, hours=%d, "
-+ "mday=%d, mon=%d, year=%d, wday=%d\n",
-+ __FUNCTION__,
-+ tm->tm_sec, tm->tm_min, tm->tm_hour,
-+ tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday);
-+
-+ return 0;
-+}
-+
-+static int ds1672_set_mmss(struct i2c_client *client, unsigned long secs)
-+{
-+ int xfer;
-+ unsigned char buf[5];
-+
-+ buf[0] = DS1672_REG_CNT_BASE;
-+ buf[1] = secs & 0x000000FF;
-+ buf[2] = (secs & 0x0000FF00) >> 8;
-+ buf[3] = (secs & 0x00FF0000) >> 16;
-+ buf[4] = (secs & 0xFF000000) >> 24;
-+
-+ xfer = i2c_master_send(client, buf, 5);
-+ if (xfer != 5) {
-+ dev_err(&client->dev, "%s: send: %d\n", __FUNCTION__, xfer);
-+ return -EIO;
-+ }
-+
-+ return 0;
-+}
-+
-+static int ds1672_set_datetime(struct i2c_client *client, struct rtc_time *tm)
-+{
-+ unsigned long secs;
-+
-+ dev_dbg(&client->dev,
-+ "%s: secs=%d, mins=%d, hours=%d, ",
-+ "mday=%d, mon=%d, year=%d, wday=%d\n",
-+ __FUNCTION__,
-+ tm->tm_sec, tm->tm_min, tm->tm_hour,
-+ tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday);
-+
-+ rtc_tm_to_time(tm, &secs);
-+
-+ return ds1672_set_mmss(client, secs);
-+}
-+
-+static int ds1672_hctosys(struct i2c_client *client)
-+{
-+ int err;
-+ struct rtc_time tm;
-+ struct timespec tv;
-+
-+ if ((err = ds1672_get_datetime(client, &tm)) != 0)
-+ return err;
-+
-+ /* IMPORTANT: the RTC only stores whole seconds. It is arbitrary
-+ * whether it stores the most close value or the value with partial
-+ * seconds truncated. However, it is important that we use it to store
-+ * the truncated value. This is because otherwise it is necessary,
-+ * in an rtc sync function, to read both xtime.tv_sec and
-+ * xtime.tv_nsec. On some processors (i.e. ARM), an atomic read
-+ * of >32bits is not possible. So storing the most close value would
-+ * slow down the sync API. So here we have the truncated value and
-+ * the best guess is to add 0.5s.
-+ */
-+
-+ tv.tv_nsec = NSEC_PER_SEC >> 1;
-+
-+ rtc_tm_to_time(&tm, &tv.tv_sec);
-+
-+ do_settimeofday(&tv);
-+
-+ dev_info(&client->dev,
-+ "setting the system clock to %d-%02d-%02d %02d:%02d:%02d\n",
-+ tm.tm_year + 1900, tm.tm_mon + 1,
-+ tm.tm_mday, tm.tm_hour, tm.tm_min,
-+ tm.tm_sec);
-+
-+ return 0;
-+}
-+
-+static int ds1672_rtc_read_time(struct device *dev, struct rtc_time *tm)
-+{
-+ return ds1672_get_datetime(to_i2c_client(dev), tm);
-+}
-+
-+static int ds1672_rtc_set_time(struct device *dev, struct rtc_time *tm)
-+{
-+ return ds1672_set_datetime(to_i2c_client(dev), tm);
-+}
-+
-+static int ds1672_rtc_set_mmss(struct device *dev, unsigned long secs)
-+{
-+ return ds1672_set_mmss(to_i2c_client(dev), secs);
-+}
-+
-+static struct rtc_class_ops ds1672_rtc_ops = {
-+ .read_time = ds1672_rtc_read_time,
-+ .set_time = ds1672_rtc_set_time,
-+ .set_mmss = ds1672_rtc_set_mmss,
-+};
-+
-+static int ds1672_attach(struct i2c_adapter *adapter)
-+{
-+ dev_dbg(&adapter->dev, "%s\n", __FUNCTION__);
-+
-+ return i2c_probe(adapter, &addr_data, ds1672_probe);
-+}
-+
-+static int ds1672_detach(struct i2c_client *client)
-+{
-+ int err;
-+ struct rtc_device *rtc = i2c_get_clientdata(client);
-+
-+ dev_dbg(&client->dev, "%s\n", __FUNCTION__);
-+
-+ if (rtc)
-+ rtc_device_unregister(rtc);
-+
-+ if ((err = i2c_detach_client(client)))
-+ return err;
-+
-+ kfree(client);
-+
-+ return 0;
-+}
-+
-+static struct i2c_driver ds1672_driver = {
-+ .owner = THIS_MODULE,
-+ .name = "ds1672",
-+ .flags = I2C_DF_NOTIFY,
-+ .attach_adapter = &ds1672_attach,
-+ .detach_client = &ds1672_detach,
-+};
-+
-+static int ds1672_probe(struct i2c_adapter *adapter, int address, int kind)
-+{
-+ int err = 0;
-+ struct i2c_client *client;
-+ struct rtc_device *rtc;
-+
-+ dev_dbg(&adapter->dev, "%s\n", __FUNCTION__);
-+
-+ if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) {
-+ err = -ENODEV;
-+ goto exit;
-+ }
-+
-+ if (!(client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL))) {
-+ err = -ENOMEM;
-+ goto exit;
-+ }
-+
-+ /* I2C client */
-+ client->addr = address;
-+ client->driver = &ds1672_driver;
-+ client->adapter = adapter;
-+
-+ strlcpy(client->name, ds1672_driver.name, I2C_NAME_SIZE);
-+
-+ /* Inform the i2c layer */
-+ if ((err = i2c_attach_client(client)))
-+ goto exit_kfree;
-+
-+ dev_info(&client->dev, "chip found, driver version " DRV_VERSION "\n");
-+
-+ rtc = rtc_device_register(ds1672_driver.name, &client->dev,
-+ &ds1672_rtc_ops, THIS_MODULE);
-+
-+ if (IS_ERR(rtc)) {
-+ err = PTR_ERR(rtc);
-+ dev_err(&client->dev,
-+ "unable to register the class device\n");
-+ goto exit_detach;
-+ }
-+
-+ i2c_set_clientdata(client, rtc);
-+
-+ /* If requested, set the system time */
-+ if (hctosys) {
-+ if ((err = ds1672_hctosys(client)) < 0)
-+ dev_err(&client->dev,
-+ "unable to set the system clock\n");
-+ }
-+
-+ return 0;
-+
-+exit_detach:
-+ i2c_detach_client(client);
-+
-+exit_kfree:
-+ kfree(client);
-+
-+exit:
-+ return err;
-+}
-+
-+static int __init ds1672_init(void)
-+{
-+ return i2c_add_driver(&ds1672_driver);
-+}
-+
-+static void __exit ds1672_exit(void)
-+{
-+ i2c_del_driver(&ds1672_driver);
-+}
-+
-+MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
-+MODULE_DESCRIPTION("Dallas/Maxim DS1672 timekeeper driver");
-+MODULE_LICENSE("GPL");
-+MODULE_VERSION(DRV_VERSION);
-+
-+module_init(ds1672_init);
-+module_exit(ds1672_exit);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-14 12:34:51 +0000