litmus-rt.git - The LITMUS^RT kernel.

diff options

author	Tony Luck <tony.luck@intel.com>	2006-03-31 13:28:29 -0500
committer	Tony Luck <tony.luck@intel.com>	2006-03-31 13:28:29 -0500
commit	2ab9391dea6e36fed13443c29bf97d3be05f5289 (patch)
tree	8bc492fe3df71457caf8009bd081b9be0ec1074a /kernel/futex.c
parent	f19180056ea09ec6a5d32e741234451a1e6eba4d (diff)

[IA64] Avoid "u64 foo : 32;" for gcc3 vs. gcc4 compatibility

gcc3 thinks that a 32-bit field of a u64 type is itself a u64, so should be printed with "%ld". gcc4 thinks it needs just "%d". Make both versions happy by avoiding this construct. Signed-off-by: Tony Luck <tony.luck@intel.com>

Diffstat (limited to 'kernel/futex.c')

0 files changed, 0 insertions, 0 deletions

/* * An rtc driver for the Dallas DS1742 * * Copyright (C) 2006 Atsushi Nemoto <anemo@mba.ocn.ne.jp> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * Copyright (C) 2006 Torsten Ertbjerg Rasmussen <tr@newtec.dk> * - nvram size determined from resource * - this ds1742 driver now supports ds1743. */ #include <linux/bcd.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/gfp.h> #include <linux/delay.h> #include <linux/jiffies.h> #include <linux/rtc.h> #include <linux/platform_device.h> #include <linux/io.h> #include <linux/module.h> #define DRV_VERSION "0.4" #define RTC_SIZE 8 #define RTC_CONTROL 0 #define RTC_CENTURY 0 #define RTC_SECONDS 1 #define RTC_MINUTES 2 #define RTC_HOURS 3 #define RTC_DAY 4 #define RTC_DATE 5 #define RTC_MONTH 6 #define RTC_YEAR 7 #define RTC_CENTURY_MASK 0x3f #define RTC_SECONDS_MASK 0x7f #define RTC_DAY_MASK 0x07 /* Bits in the Control/Century register */ #define RTC_WRITE 0x80 #define RTC_READ 0x40 /* Bits in the Seconds register */ #define RTC_STOP 0x80 /* Bits in the Day register */ #define RTC_BATT_FLAG 0x80 struct rtc_plat_data { struct rtc_device *rtc; void __iomem *ioaddr_nvram; void __iomem *ioaddr_rtc; size_t size_nvram; size_t size; unsigned long last_jiffies; struct bin_attribute nvram_attr; }; static int ds1742_rtc_set_time(struct device *dev, struct rtc_time *tm) { struct platform_device *pdev = to_platform_device(dev); struct rtc_plat_data *pdata = platform_get_drvdata(pdev); void __iomem *ioaddr = pdata->ioaddr_rtc; u8 century; century = bin2bcd((tm->tm_year + 1900) / 100); writeb(RTC_WRITE, ioaddr + RTC_CONTROL); writeb(bin2bcd(tm->tm_year % 100), ioaddr + RTC_YEAR); writeb(bin2bcd(tm->tm_mon + 1), ioaddr + RTC_MONTH); writeb(bin2bcd(tm->tm_wday) & RTC_DAY_MASK, ioaddr + RTC_DAY); writeb(bin2bcd(tm->tm_mday), ioaddr + RTC_DATE); writeb(bin2bcd(tm->tm_hour), ioaddr + RTC_HOURS); writeb(bin2bcd(tm->tm_min), ioaddr + RTC_MINUTES); writeb(bin2bcd(tm->tm_sec) & RTC_SECONDS_MASK, ioaddr + RTC_SECONDS); /* RTC_CENTURY and RTC_CONTROL share same register */ writeb(RTC_WRITE | (century & RTC_CENTURY_MASK), ioaddr + RTC_CENTURY); writeb(century & RTC_CENTURY_MASK, ioaddr + RTC_CONTROL); return 0; } static int ds1742_rtc_read_time(struct device *dev, struct rtc_time *tm) { struct platform_device *pdev = to_platform_device(dev); struct rtc_plat_data *pdata = platform_get_drvdata(pdev); void __iomem *ioaddr = pdata->ioaddr_rtc; unsigned int year, month, day, hour, minute, second, week; unsigned int century; /* give enough time to update RTC in case of continuous read */ if (pdata->last_jiffies == jiffies) msleep(1); pdata->last_jiffies = jiffies; writeb(RTC_READ, ioaddr + RTC_CONTROL); second = readb(ioaddr + RTC_SECONDS) & RTC_SECONDS_MASK; minute = readb(ioaddr + RTC_MINUTES); hour = readb(ioaddr + RTC_HOURS); day = readb(ioaddr + RTC_DATE); week = readb(ioaddr + RTC_DAY) & RTC_DAY_MASK; month = readb(ioaddr + RTC_MONTH); year = readb(ioaddr + RTC_YEAR); century = readb(ioaddr + RTC_CENTURY) & RTC_CENTURY_MASK; writeb(0, ioaddr + RTC_CONTROL); tm->tm_sec = bcd2bin(second); tm->tm_min = bcd2bin(minute); tm->tm_hour = bcd2bin(hour); tm->tm_mday = bcd2bin(day); tm->tm_wday = bcd2bin(week); tm->tm_mon = bcd2bin(month) - 1; /* year is 1900 + tm->tm_year */ tm->tm_year = bcd2bin(year) + bcd2bin(century) * 100 - 1900; if (rtc_valid_tm(tm) < 0) { dev_err(dev, "retrieved date/time is not valid.\n"); rtc_time_to_tm(0, tm); } return 0; } static const struct rtc_class_ops ds1742_rtc_ops = { .read_time = ds1742_rtc_read_time, .set_time = ds1742_rtc_set_time, }; static ssize_t ds1742_nvram_read(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t pos, size_t size) { struct device *dev = container_of(kobj, struct device, kobj); struct platform_device *pdev = to_platform_device(dev); struct rtc_plat_data *pdata = platform_get_drvdata(pdev); void __iomem *ioaddr = pdata->ioaddr_nvram; ssize_t count; for (count = 0; size > 0 && pos < pdata->size_nvram; count++, size--) *buf++ = readb(ioaddr + pos++); return count; } static ssize_t ds1742_nvram_write(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t pos, size_t size) { struct device *dev = container_of(kobj, struct device, kobj); struct platform_device *pdev = to_platform_device(dev); struct rtc_plat_data *pdata = platform_get_drvdata(pdev); void __iomem *ioaddr = pdata->ioaddr_nvram; ssize_t count; for (count = 0; size > 0 && pos < pdata->size_nvram; count++, size--) writeb(*buf++, ioaddr + pos++); return count; } static int ds1742_rtc_probe(struct platform_device *pdev) { struct rtc_device *rtc; struct resource *res; unsigned int cen, sec; struct rtc_plat_data *pdata; void __iomem *ioaddr; int ret = 0; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) return -ENODEV; pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) return -ENOMEM; pdata->size = resource_size(res); if (!devm_request_mem_region(&pdev->dev, res->start, pdata->size, pdev->name)) return -EBUSY; ioaddr = devm_ioremap(&pdev->dev, res->start, pdata->size); if (!ioaddr) return -ENOMEM; pdata->ioaddr_nvram = ioaddr; pdata->size_nvram = pdata->size - RTC_SIZE; pdata->ioaddr_rtc = ioaddr + pdata->size_nvram; sysfs_bin_attr_init(&pdata->nvram_attr); pdata->nvram_attr.attr.name = "nvram"; pdata->nvram_attr.attr.mode = S_IRUGO | S_IWUSR; pdata->nvram_attr.read = ds1742_nvram_read; pdata->nvram_attr.write = ds1742_nvram_write; pdata->nvram_attr.size = pdata->size_nvram; /* turn RTC on if it was not on */ ioaddr = pdata->ioaddr_rtc; sec = readb(ioaddr + RTC_SECONDS); if (sec & RTC_STOP) { sec &= RTC_SECONDS_MASK; cen = readb(ioaddr + RTC_CENTURY) & RTC_CENTURY_MASK; writeb(RTC_WRITE, ioaddr + RTC_CONTROL); writeb(sec, ioaddr + RTC_SECONDS); writeb(cen & RTC_CENTURY_MASK, ioaddr + RTC_CONTROL); } if (!(readb(ioaddr + RTC_DAY) & RTC_BATT_FLAG)) dev_warn(&pdev->dev, "voltage-low detected.\n"); pdata->last_jiffies = jiffies; platform_set_drvdata(pdev, pdata); rtc = devm_rtc_device_register(&pdev->dev, pdev->name, &ds1742_rtc_ops, THIS_MODULE); if (IS_ERR(rtc)) return PTR_ERR(rtc); pdata->rtc = rtc; ret = sysfs_create_bin_file(&pdev->dev.kobj, &pdata->nvram_attr); return ret; } static int ds1742_rtc_remove(struct platform_device *pdev) { struct rtc_plat_data *pdata = platform_get_drvdata(pdev); sysfs_remove_bin_file(&pdev->dev.kobj, &pdata->nvram_attr); return 0; } static struct platform_driver ds1742_rtc_driver = { .probe = ds1742_rtc_probe, .remove = ds1742_rtc_remove, .driver = { .name = "rtc-ds1742", .owner = THIS_MODULE, }, }; module_platform_driver(ds1742_rtc_driver); MODULE_AUTHOR("Atsushi Nemoto <anemo@mba.ocn.ne.jp>"); MODULE_DESCRIPTION("Dallas DS1742 RTC driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_VERSION); MODULE_ALIAS("platform:rtc-ds1742");


context:
space:
mode: