| /* |
| * 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; |
| } |
