| /* | |
| * 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; | |
| } |