08d9f57251
Introduce an ops struct with read, write, and reset functions to abstract away the details of the wl1251 bus interface. Doing this will allow SDIO to coexist with SPI by supplying its own I/O routines. 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
/*
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* This file is part of wl12xx
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*
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* Copyright (C) 2008 Nokia Corporation
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*
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* Contact: Kalle Valo <kalle.valo@nokia.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#include "wl1251.h"
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#include "reg.h"
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#include "wl1251_io.h"
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static int wl1251_translate_reg_addr(struct wl1251 *wl, int addr)
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{
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/* If the address is lower than REGISTERS_BASE, it means that this is
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* a chip-specific register address, so look it up in the registers
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* table */
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if (addr < REGISTERS_BASE) {
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/* Make sure we don't go over the table */
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if (addr >= ACX_REG_TABLE_LEN) {
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wl1251_error("address out of range (%d)", addr);
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return -EINVAL;
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}
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addr = wl->chip.acx_reg_table[addr];
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}
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return addr - wl->physical_reg_addr + wl->virtual_reg_addr;
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}
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static int wl1251_translate_mem_addr(struct wl1251 *wl, int addr)
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{
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return addr - wl->physical_mem_addr + wl->virtual_mem_addr;
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}
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void wl1251_mem_read(struct wl1251 *wl, int addr, void *buf, size_t len)
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{
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int physical;
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physical = wl1251_translate_mem_addr(wl, addr);
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wl->if_ops->read(wl, physical, buf, len);
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}
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void wl1251_mem_write(struct wl1251 *wl, int addr, void *buf, size_t len)
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{
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int physical;
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physical = wl1251_translate_mem_addr(wl, addr);
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wl->if_ops->write(wl, physical, buf, len);
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}
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u32 wl1251_mem_read32(struct wl1251 *wl, int addr)
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{
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return wl1251_read32(wl, wl1251_translate_mem_addr(wl, addr));
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}
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void wl1251_mem_write32(struct wl1251 *wl, int addr, u32 val)
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{
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wl1251_write32(wl, wl1251_translate_mem_addr(wl, addr), val);
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}
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u32 wl1251_reg_read32(struct wl1251 *wl, int addr)
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{
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return wl1251_read32(wl, wl1251_translate_reg_addr(wl, addr));
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}
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void wl1251_reg_write32(struct wl1251 *wl, int addr, u32 val)
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{
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wl1251_write32(wl, wl1251_translate_reg_addr(wl, addr), val);
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}
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