mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
125 lines
2.1 KiB
125 lines
2.1 KiB
// SPDX-License-Identifier: GPL-2.0+ |
|
/* |
|
* (C) Copyright 2015 Google, Inc |
|
* Written by Simon Glass <[email protected]> |
|
*/ |
|
|
|
#include <common.h> |
|
#include <dm.h> |
|
#include <errno.h> |
|
#include <rtc.h> |
|
|
|
int dm_rtc_get(struct udevice *dev, struct rtc_time *time) |
|
{ |
|
struct rtc_ops *ops = rtc_get_ops(dev); |
|
|
|
assert(ops); |
|
if (!ops->get) |
|
return -ENOSYS; |
|
return ops->get(dev, time); |
|
} |
|
|
|
int dm_rtc_set(struct udevice *dev, struct rtc_time *time) |
|
{ |
|
struct rtc_ops *ops = rtc_get_ops(dev); |
|
|
|
assert(ops); |
|
if (!ops->set) |
|
return -ENOSYS; |
|
return ops->set(dev, time); |
|
} |
|
|
|
int dm_rtc_reset(struct udevice *dev) |
|
{ |
|
struct rtc_ops *ops = rtc_get_ops(dev); |
|
|
|
assert(ops); |
|
if (!ops->reset) |
|
return -ENOSYS; |
|
return ops->reset(dev); |
|
} |
|
|
|
int rtc_read8(struct udevice *dev, unsigned int reg) |
|
{ |
|
struct rtc_ops *ops = rtc_get_ops(dev); |
|
|
|
assert(ops); |
|
if (!ops->read8) |
|
return -ENOSYS; |
|
return ops->read8(dev, reg); |
|
} |
|
|
|
int rtc_write8(struct udevice *dev, unsigned int reg, int val) |
|
{ |
|
struct rtc_ops *ops = rtc_get_ops(dev); |
|
|
|
assert(ops); |
|
if (!ops->write8) |
|
return -ENOSYS; |
|
return ops->write8(dev, reg, val); |
|
} |
|
|
|
int rtc_read16(struct udevice *dev, unsigned int reg, u16 *valuep) |
|
{ |
|
u16 value = 0; |
|
int ret; |
|
int i; |
|
|
|
for (i = 0; i < sizeof(value); i++) { |
|
ret = rtc_read8(dev, reg + i); |
|
if (ret < 0) |
|
return ret; |
|
value |= ret << (i << 3); |
|
} |
|
|
|
*valuep = value; |
|
return 0; |
|
} |
|
|
|
int rtc_write16(struct udevice *dev, unsigned int reg, u16 value) |
|
{ |
|
int i, ret; |
|
|
|
for (i = 0; i < sizeof(value); i++) { |
|
ret = rtc_write8(dev, reg + i, (value >> (i << 3)) & 0xff); |
|
if (ret) |
|
return ret; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
int rtc_read32(struct udevice *dev, unsigned int reg, u32 *valuep) |
|
{ |
|
u32 value = 0; |
|
int ret; |
|
int i; |
|
|
|
for (i = 0; i < sizeof(value); i++) { |
|
ret = rtc_read8(dev, reg + i); |
|
if (ret < 0) |
|
return ret; |
|
value |= ret << (i << 3); |
|
} |
|
|
|
*valuep = value; |
|
return 0; |
|
} |
|
|
|
int rtc_write32(struct udevice *dev, unsigned int reg, u32 value) |
|
{ |
|
int i, ret; |
|
|
|
for (i = 0; i < sizeof(value); i++) { |
|
ret = rtc_write8(dev, reg + i, (value >> (i << 3)) & 0xff); |
|
if (ret) |
|
return ret; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
UCLASS_DRIVER(rtc) = { |
|
.name = "rtc", |
|
.id = UCLASS_RTC, |
|
};
|
|
|