0764de64c8
In order to eventually support wl1251 spi and sdio interfaces, move
the register and memory transfer functions to a common file. Also
rename wl1251_spi_mem_{read,write} to indicate its common usage.
We still use spi_read internally until SDIO interface is introduced
so nothing functional should change here.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
87 lines
2.3 KiB
C
87 lines
2.3 KiB
C
/*
|
|
* This file is part of wl12xx
|
|
*
|
|
* Copyright (C) 2008 Nokia Corporation
|
|
*
|
|
* Contact: Kalle Valo <kalle.valo@nokia.com>
|
|
*
|
|
* 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 "wl1251.h"
|
|
#include "reg.h"
|
|
#include "wl1251_io.h"
|
|
|
|
static int wl1251_translate_reg_addr(struct wl1251 *wl, int addr)
|
|
{
|
|
/* If the address is lower than REGISTERS_BASE, it means that this is
|
|
* a chip-specific register address, so look it up in the registers
|
|
* table */
|
|
if (addr < REGISTERS_BASE) {
|
|
/* Make sure we don't go over the table */
|
|
if (addr >= ACX_REG_TABLE_LEN) {
|
|
wl1251_error("address out of range (%d)", addr);
|
|
return -EINVAL;
|
|
}
|
|
addr = wl->chip.acx_reg_table[addr];
|
|
}
|
|
|
|
return addr - wl->physical_reg_addr + wl->virtual_reg_addr;
|
|
}
|
|
|
|
static int wl1251_translate_mem_addr(struct wl1251 *wl, int addr)
|
|
{
|
|
return addr - wl->physical_mem_addr + wl->virtual_mem_addr;
|
|
}
|
|
|
|
void wl1251_mem_read(struct wl1251 *wl, int addr, void *buf, size_t len)
|
|
{
|
|
int physical;
|
|
|
|
physical = wl1251_translate_mem_addr(wl, addr);
|
|
|
|
wl1251_spi_read(wl, physical, buf, len);
|
|
}
|
|
|
|
void wl1251_mem_write(struct wl1251 *wl, int addr, void *buf, size_t len)
|
|
{
|
|
int physical;
|
|
|
|
physical = wl1251_translate_mem_addr(wl, addr);
|
|
|
|
wl1251_spi_write(wl, physical, buf, len);
|
|
}
|
|
|
|
u32 wl1251_mem_read32(struct wl1251 *wl, int addr)
|
|
{
|
|
return wl1251_read32(wl, wl1251_translate_mem_addr(wl, addr));
|
|
}
|
|
|
|
void wl1251_mem_write32(struct wl1251 *wl, int addr, u32 val)
|
|
{
|
|
wl1251_write32(wl, wl1251_translate_mem_addr(wl, addr), val);
|
|
}
|
|
|
|
u32 wl1251_reg_read32(struct wl1251 *wl, int addr)
|
|
{
|
|
return wl1251_read32(wl, wl1251_translate_reg_addr(wl, addr));
|
|
}
|
|
|
|
void wl1251_reg_write32(struct wl1251 *wl, int addr, u32 val)
|
|
{
|
|
wl1251_write32(wl, wl1251_translate_reg_addr(wl, addr), val);
|
|
}
|