/*
|
* This file is part of wl18xx
|
*
|
* Copyright (C) 2011 Texas Instruments
|
*
|
* 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.
|
*
|
* This program is distributed in the hope that it will be useful, but
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
* General Public License for more details.
|
*
|
* You should have received a copy of the GNU General Public License
|
* along with this program; if not, write to the Free Software
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
|
* 02110-1301 USA
|
*
|
*/
|
|
#include "../wlcore/wlcore.h"
|
#include "../wlcore/io.h"
|
|
#include "io.h"
|
|
int wl18xx_top_reg_write(struct wl1271 *wl, int addr, u16 val)
|
{
|
u32 tmp;
|
int ret;
|
|
if (WARN_ON(addr % 2))
|
return -EINVAL;
|
|
if ((addr % 4) == 0) {
|
ret = wlcore_read32(wl, addr, &tmp);
|
if (ret < 0)
|
goto out;
|
|
tmp = (tmp & 0xffff0000) | val;
|
ret = wlcore_write32(wl, addr, tmp);
|
} else {
|
ret = wlcore_read32(wl, addr - 2, &tmp);
|
if (ret < 0)
|
goto out;
|
|
tmp = (tmp & 0xffff) | (val << 16);
|
ret = wlcore_write32(wl, addr - 2, tmp);
|
}
|
|
out:
|
return ret;
|
}
|
|
int wl18xx_top_reg_read(struct wl1271 *wl, int addr, u16 *out)
|
{
|
u32 val = 0;
|
int ret;
|
|
if (WARN_ON(addr % 2))
|
return -EINVAL;
|
|
if ((addr % 4) == 0) {
|
/* address is 4-bytes aligned */
|
ret = wlcore_read32(wl, addr, &val);
|
if (ret >= 0 && out)
|
*out = val & 0xffff;
|
} else {
|
ret = wlcore_read32(wl, addr - 2, &val);
|
if (ret >= 0 && out)
|
*out = (val & 0xffff0000) >> 16;
|
}
|
|
return ret;
|
}
|
