113 lines
2.5 KiB
C
113 lines
2.5 KiB
C
|
// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
|
||
|
|
//
|
||
|
|
// This file is provided under a dual BSD/GPLv2 license. When using or
|
||
|
|
// redistributing this file, you may do so under either license.
|
||
|
|
//
|
||
|
|
// Copyright(c) 2018 Intel Corporation. All rights reserved.
|
||
|
|
//
|
||
|
|
// Author: Keyon Jie <yang.jie@linux.intel.com>
|
||
|
|
//
|
||
|
|
|
||
|
|
#include <linux/io-64-nonatomic-lo-hi.h>
|
||
|
|
#include <linux/platform_device.h>
|
||
|
|
#include <sound/soc.h>
|
||
|
|
#include <sound/sof.h>
|
||
|
|
#include "sof-priv.h"
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Register IO
|
||
|
|
*
|
||
|
|
* The sof_io_xyz() wrappers are typically referenced in snd_sof_dsp_ops
|
||
|
|
* structures and cannot be inlined.
|
||
|
|
*/
|
||
|
|
|
||
|
|
void sof_io_write(struct snd_sof_dev *sdev, void __iomem *addr, u32 value)
|
||
|
|
{
|
||
|
|
writel(value, addr);
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(sof_io_write);
|
||
|
|
|
||
|
|
u32 sof_io_read(struct snd_sof_dev *sdev, void __iomem *addr)
|
||
|
|
{
|
||
|
|
return readl(addr);
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(sof_io_read);
|
||
|
|
|
||
|
|
void sof_io_write64(struct snd_sof_dev *sdev, void __iomem *addr, u64 value)
|
||
|
|
{
|
||
|
|
writeq(value, addr);
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(sof_io_write64);
|
||
|
|
|
||
|
|
u64 sof_io_read64(struct snd_sof_dev *sdev, void __iomem *addr)
|
||
|
|
{
|
||
|
|
return readq(addr);
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(sof_io_read64);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* IPC Mailbox IO
|
||
|
|
*/
|
||
|
|
|
||
|
|
void sof_mailbox_write(struct snd_sof_dev *sdev, u32 offset,
|
||
|
|
void *message, size_t bytes)
|
||
|
|
{
|
||
|
|
void __iomem *dest = sdev->bar[sdev->mailbox_bar] + offset;
|
||
|
|
|
||
|
|
memcpy_toio(dest, message, bytes);
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(sof_mailbox_write);
|
||
|
|
|
||
|
|
void sof_mailbox_read(struct snd_sof_dev *sdev, u32 offset,
|
||
|
|
void *message, size_t bytes)
|
||
|
|
{
|
||
|
|
void __iomem *src = sdev->bar[sdev->mailbox_bar] + offset;
|
||
|
|
|
||
|
|
memcpy_fromio(message, src, bytes);
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(sof_mailbox_read);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Memory copy.
|
||
|
|
*/
|
||
|
|
|
||
|
|
void sof_block_write(struct snd_sof_dev *sdev, u32 bar, u32 offset, void *src,
|
||
|
|
size_t size)
|
||
|
|
{
|
||
|
|
void __iomem *dest = sdev->bar[bar] + offset;
|
||
|
|
const u8 *src_byte = src;
|
||
|
|
u32 affected_mask;
|
||
|
|
u32 tmp;
|
||
|
|
int m, n;
|
||
|
|
|
||
|
|
m = size / 4;
|
||
|
|
n = size % 4;
|
||
|
|
|
||
|
|
/* __iowrite32_copy use 32bit size values so divide by 4 */
|
||
|
|
__iowrite32_copy(dest, src, m);
|
||
|
|
|
||
|
|
if (n) {
|
||
|
|
affected_mask = (1 << (8 * n)) - 1;
|
||
|
|
|
||
|
|
/* first read the 32bit data of dest, then change affected
|
||
|
|
* bytes, and write back to dest. For unaffected bytes, it
|
||
|
|
* should not be changed
|
||
|
|
*/
|
||
|
|
tmp = ioread32(dest + m * 4);
|
||
|
|
tmp &= ~affected_mask;
|
||
|
|
|
||
|
|
tmp |= *(u32 *)(src_byte + m * 4) & affected_mask;
|
||
|
|
iowrite32(tmp, dest + m * 4);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(sof_block_write);
|
||
|
|
|
||
|
|
void sof_block_read(struct snd_sof_dev *sdev, u32 bar, u32 offset, void *dest,
|
||
|
|
size_t size)
|
||
|
|
{
|
||
|
|
void __iomem *src = sdev->bar[bar] + offset;
|
||
|
|
|
||
|
|
memcpy_fromio(dest, src, size);
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(sof_block_read);
|