From a0f5ebe8b09c775bccef4dcb663f5bd47446e61c Mon Sep 17 00:00:00 2001 From: Rod Whitby Date: Wed, 4 Jan 2006 11:53:06 +0000 Subject: nas100d-kernel: Corrected the location of the mac address in the RedBoot config partition, merged the two nas100d patches (sent upstream), updated patchsets to match 2.6.15, removed some patches, and combined some others. --- .../2.6.15/00-memory-h-page-shift.patch | 74 +- .../nas100d-kernel/2.6.15/01-i2c-ixp4xx.patch | 29 - .../linux/nas100d-kernel/2.6.15/40-rtc-class.patch | 2719 ++++++++++++++++++++ .../nas100d-kernel/2.6.15/50-nas100d-arch.patch | 398 ++- .../nas100d-kernel/2.6.15/55-nas100d-arch.patch | 395 --- .../linux/nas100d-kernel/2.6.15/85-timer.patch | 246 ++ .../nas100d-kernel/2.6.15/90-ixp4xx-nslu2.patch | 132 - .../linux/nas100d-kernel/2.6.15/91-maclist.patch | 377 +++ .../nas100d-kernel/2.6.15/92-nas100d-maclist.patch | 72 + .../linux/nas100d-kernel/2.6.15/anonymiser.patch | 22 + packages/linux/nas100d-kernel/2.6.15/nas100d-pci.c | 87 - .../linux/nas100d-kernel/2.6.15/nas100d-power.c | 92 - .../linux/nas100d-kernel/2.6.15/nas100d-setup.c | 132 - packages/linux/nas100d-kernel/2.6.15/nas100d.h | 75 - packages/linux/nas100d-kernel_2.6.15.bb | 34 + 15 files changed, 3915 insertions(+), 969 deletions(-) delete mode 100644 packages/linux/nas100d-kernel/2.6.15/01-i2c-ixp4xx.patch create mode 100644 packages/linux/nas100d-kernel/2.6.15/40-rtc-class.patch delete mode 100644 packages/linux/nas100d-kernel/2.6.15/55-nas100d-arch.patch create mode 100644 packages/linux/nas100d-kernel/2.6.15/85-timer.patch delete mode 100644 packages/linux/nas100d-kernel/2.6.15/90-ixp4xx-nslu2.patch create mode 100644 packages/linux/nas100d-kernel/2.6.15/91-maclist.patch create mode 100644 packages/linux/nas100d-kernel/2.6.15/92-nas100d-maclist.patch create mode 100644 packages/linux/nas100d-kernel/2.6.15/anonymiser.patch delete mode 100644 packages/linux/nas100d-kernel/2.6.15/nas100d-pci.c delete mode 100644 packages/linux/nas100d-kernel/2.6.15/nas100d-power.c delete mode 100644 packages/linux/nas100d-kernel/2.6.15/nas100d-setup.c delete mode 100644 packages/linux/nas100d-kernel/2.6.15/nas100d.h create mode 100644 packages/linux/nas100d-kernel_2.6.15.bb (limited to 'packages/linux') diff --git a/packages/linux/nas100d-kernel/2.6.15/00-memory-h-page-shift.patch b/packages/linux/nas100d-kernel/2.6.15/00-memory-h-page-shift.patch index 29b048e27a..4ec8f0475f 100644 --- a/packages/linux/nas100d-kernel/2.6.15/00-memory-h-page-shift.patch +++ b/packages/linux/nas100d-kernel/2.6.15/00-memory-h-page-shift.patch @@ -1,10 +1,68 @@ ---- linux-2.6.15/include/asm-arm/arch-ixp4xx/memory.h 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.15/include/asm-arm/arch-ixp4xx/memory.h 1970-01-01 00:00:00.000000000 +0000 -@@ -8,6 +8,7 @@ - #define __ASM_ARCH_MEMORY_H +--- linux-2.6.15-rc7/include/asm-arm/arch-ixp4xx/memory.h~ 2005-12-30 05:18:27.000000000 +1030 ++++ linux-2.6.15-rc7/include/asm-arm/arch-ixp4xx/memory.h 2005-12-30 05:36:04.000000000 +1030 +@@ -16,31 +16,10 @@ - #include -+#include + #ifndef __ASSEMBLY__ - /* - * Physical DRAM offset. +-/* +- * Only first 64MB of memory can be accessed via PCI. +- * We use GFP_DMA to allocate safe buffers to do map/unmap. +- * This is really ugly and we need a better way of specifying +- * DMA-capable regions of memory. +- */ +-static inline void __arch_adjust_zones(int node, unsigned long *zone_size, +- unsigned long *zhole_size) +-{ +- unsigned int sz = SZ_64M >> PAGE_SHIFT; +- +- /* +- * Only adjust if > 64M on current system +- */ +- if (node || (zone_size[0] <= sz)) +- return; +- +- zone_size[1] = zone_size[0] - sz; +- zone_size[0] = sz; +- zhole_size[1] = zhole_size[0]; +- zhole_size[0] = 0; +-} ++void ixp4xx_adjust_zones(int node, unsigned long *size, unsigned long *holes); + + #define arch_adjust_zones(node, size, holes) \ +- __arch_adjust_zones(node, size, holes) ++ ixp4xx_adjust_zones(node, size, holes) + + #define ISA_DMA_THRESHOLD (SZ_64M - 1) + +--- linux-2.6.15-rc7/arch/arm/mach-ixp4xx/common-pci.c~ 2005-12-30 05:16:03.000000000 +1030 ++++ linux-2.6.15-rc7/arch/arm/mach-ixp4xx/common-pci.c 2005-12-30 05:43:55.000000000 +1030 +@@ -341,6 +341,29 @@ int dma_needs_bounce(struct device *dev, + return (dev->bus == &pci_bus_type ) && ((dma_addr + size) >= SZ_64M); + } + ++/* ++ * Only first 64MB of memory can be accessed via PCI. ++ * We use GFP_DMA to allocate safe buffers to do map/unmap. ++ * This is really ugly and we need a better way of specifying ++ * DMA-capable regions of memory. ++ */ ++void __init ixp4xx_adjust_zones(int node, unsigned long *zone_size, ++ unsigned long *zhole_size) ++{ ++ unsigned int sz = SZ_64M >> PAGE_SHIFT; ++ ++ /* ++ * Only adjust if > 64M on current system ++ */ ++ if (node || (zone_size[0] <= sz)) ++ return; ++ ++ zone_size[1] = zone_size[0] - sz; ++ zone_size[0] = sz; ++ zhole_size[1] = zhole_size[0]; ++ zhole_size[0] = 0; ++} ++ + void __init ixp4xx_pci_preinit(void) + { + unsigned long processor_id; diff --git a/packages/linux/nas100d-kernel/2.6.15/01-i2c-ixp4xx.patch b/packages/linux/nas100d-kernel/2.6.15/01-i2c-ixp4xx.patch deleted file mode 100644 index 16426bdee6..0000000000 --- a/packages/linux/nas100d-kernel/2.6.15/01-i2c-ixp4xx.patch +++ /dev/null @@ -1,29 +0,0 @@ ---- linux-2.6.15/drivers/i2c/busses/i2c-ixp4xx.c 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.15/drivers/i2c/busses/i2c-ixp4xx.c 1970-01-01 00:00:00.000000000 +0000 -@@ -35,7 +35,7 @@ - - #include /* Pick up IXP4xx-specific bits */ - --static struct device_driver ixp4xx_i2c_driver; -+static struct platform_driver ixp4xx_i2c_driver; - - static inline int ixp4xx_scl_pin(void *data) - { -@@ -128,7 +128,7 @@ static int ixp4xx_i2c_probe(struct platf - drv_data->algo_data.timeout = 100; - - drv_data->adapter.id = I2C_HW_B_IXP4XX; -- strlcpy(drv_data->adapter.name, ixp4xx_i2c_driver.name, -+ strlcpy(drv_data->adapter.name, ixp4xx_i2c_driver.driver.name, - I2C_NAME_SIZE); - drv_data->adapter.algo_data = &drv_data->algo_data; - -@@ -140,7 +140,7 @@ static int ixp4xx_i2c_probe(struct platf - gpio_line_set(gpio->sda_pin, 0); - - if ((err = i2c_bit_add_bus(&drv_data->adapter) != 0)) { -- printk(KERN_ERR "ERROR: Could not install %s\n", dev->bus_id); -+ printk(KERN_ERR "ERROR: Could not install %s\n", ixp4xx_i2c_driver.driver.name); - - kfree(drv_data); - return err; diff --git a/packages/linux/nas100d-kernel/2.6.15/40-rtc-class.patch b/packages/linux/nas100d-kernel/2.6.15/40-rtc-class.patch new file mode 100644 index 0000000000..feea3f2f8b --- /dev/null +++ b/packages/linux/nas100d-kernel/2.6.15/40-rtc-class.patch @@ -0,0 +1,2719 @@ +--- 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 ++#include ++#include ++#include ++ ++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 ++ * ++ * 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 ++#include ++#include ++#include ++ ++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 "); ++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 ++ * ++ * 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 ++ ++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 ++ * ++ * 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 ++ ++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 ++ * ++ * 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 ++#include ++ ++/* 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 "); ++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 ++ * ++ * 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 ++#include ++#include ++#include ++ ++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 "); ++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 ++ * ++ * 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 ++#include ++ ++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 "); ++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 ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#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, ® }, ++ }; ++ ++ 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