mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
126 lines
2.1 KiB
C
126 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2015 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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*/
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#include <common.h>
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#include <dm.h>
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#include <errno.h>
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#include <rtc.h>
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int dm_rtc_get(struct udevice *dev, struct rtc_time *time)
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{
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struct rtc_ops *ops = rtc_get_ops(dev);
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assert(ops);
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if (!ops->get)
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return -ENOSYS;
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return ops->get(dev, time);
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}
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int dm_rtc_set(struct udevice *dev, struct rtc_time *time)
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{
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struct rtc_ops *ops = rtc_get_ops(dev);
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assert(ops);
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if (!ops->set)
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return -ENOSYS;
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return ops->set(dev, time);
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}
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int dm_rtc_reset(struct udevice *dev)
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{
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struct rtc_ops *ops = rtc_get_ops(dev);
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assert(ops);
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if (!ops->reset)
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return -ENOSYS;
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return ops->reset(dev);
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}
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int rtc_read8(struct udevice *dev, unsigned int reg)
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{
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struct rtc_ops *ops = rtc_get_ops(dev);
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assert(ops);
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if (!ops->read8)
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return -ENOSYS;
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return ops->read8(dev, reg);
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}
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int rtc_write8(struct udevice *dev, unsigned int reg, int val)
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{
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struct rtc_ops *ops = rtc_get_ops(dev);
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assert(ops);
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if (!ops->write8)
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return -ENOSYS;
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return ops->write8(dev, reg, val);
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}
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int rtc_read16(struct udevice *dev, unsigned int reg, u16 *valuep)
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{
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u16 value = 0;
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int ret;
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int i;
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for (i = 0; i < sizeof(value); i++) {
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ret = rtc_read8(dev, reg + i);
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if (ret < 0)
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return ret;
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value |= ret << (i << 3);
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}
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*valuep = value;
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return 0;
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}
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int rtc_write16(struct udevice *dev, unsigned int reg, u16 value)
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{
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int i, ret;
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for (i = 0; i < sizeof(value); i++) {
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ret = rtc_write8(dev, reg + i, (value >> (i << 3)) & 0xff);
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if (ret)
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return ret;
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}
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return 0;
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}
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int rtc_read32(struct udevice *dev, unsigned int reg, u32 *valuep)
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{
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u32 value = 0;
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int ret;
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int i;
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for (i = 0; i < sizeof(value); i++) {
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ret = rtc_read8(dev, reg + i);
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if (ret < 0)
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return ret;
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value |= ret << (i << 3);
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}
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*valuep = value;
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return 0;
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}
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int rtc_write32(struct udevice *dev, unsigned int reg, u32 value)
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{
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int i, ret;
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for (i = 0; i < sizeof(value); i++) {
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ret = rtc_write8(dev, reg + i, (value >> (i << 3)) & 0xff);
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if (ret)
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return ret;
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}
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return 0;
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}
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UCLASS_DRIVER(rtc) = {
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.name = "rtc",
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.id = UCLASS_RTC,
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};
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