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Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 246 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000436.674189849@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
62 lines
1.1 KiB
C
62 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* This file is part of wl18xx
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*
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* Copyright (C) 2011 Texas Instruments
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*/
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#include "../wlcore/wlcore.h"
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#include "../wlcore/io.h"
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#include "io.h"
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int wl18xx_top_reg_write(struct wl1271 *wl, int addr, u16 val)
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{
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u32 tmp;
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int ret;
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if (WARN_ON(addr % 2))
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return -EINVAL;
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if ((addr % 4) == 0) {
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ret = wlcore_read32(wl, addr, &tmp);
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if (ret < 0)
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goto out;
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tmp = (tmp & 0xffff0000) | val;
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ret = wlcore_write32(wl, addr, tmp);
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} else {
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ret = wlcore_read32(wl, addr - 2, &tmp);
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if (ret < 0)
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goto out;
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tmp = (tmp & 0xffff) | (val << 16);
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ret = wlcore_write32(wl, addr - 2, tmp);
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}
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out:
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return ret;
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}
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int wl18xx_top_reg_read(struct wl1271 *wl, int addr, u16 *out)
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{
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u32 val = 0;
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int ret;
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if (WARN_ON(addr % 2))
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return -EINVAL;
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if ((addr % 4) == 0) {
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/* address is 4-bytes aligned */
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ret = wlcore_read32(wl, addr, &val);
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if (ret >= 0 && out)
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*out = val & 0xffff;
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} else {
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ret = wlcore_read32(wl, addr - 2, &val);
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if (ret >= 0 && out)
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*out = (val & 0xffff0000) >> 16;
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}
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return ret;
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}
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