cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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phy_ac.c (2198B)

      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 * Broadcom B43 wireless driver
      4 * IEEE 802.11ac AC-PHY support
      5 *
      6 * Copyright (c) 2015 Rafał Miłecki <zajec5@gmail.com>
      7 */
      8
      9#include "b43.h"
     10#include "phy_ac.h"
     11
     12/**************************************************
     13 * Basic PHY ops
     14 **************************************************/
     15
     16static int b43_phy_ac_op_allocate(struct b43_wldev *dev)
     17{
     18	struct b43_phy_ac *phy_ac;
     19
     20	phy_ac = kzalloc(sizeof(*phy_ac), GFP_KERNEL);
     21	if (!phy_ac)
     22		return -ENOMEM;
     23	dev->phy.ac = phy_ac;
     24
     25	return 0;
     26}
     27
     28static void b43_phy_ac_op_free(struct b43_wldev *dev)
     29{
     30	struct b43_phy *phy = &dev->phy;
     31	struct b43_phy_ac *phy_ac = phy->ac;
     32
     33	kfree(phy_ac);
     34	phy->ac = NULL;
     35}
     36
     37static void b43_phy_ac_op_maskset(struct b43_wldev *dev, u16 reg, u16 mask,
     38				  u16 set)
     39{
     40	b43_write16f(dev, B43_MMIO_PHY_CONTROL, reg);
     41	b43_write16(dev, B43_MMIO_PHY_DATA,
     42		    (b43_read16(dev, B43_MMIO_PHY_DATA) & mask) | set);
     43}
     44
     45static u16 b43_phy_ac_op_radio_read(struct b43_wldev *dev, u16 reg)
     46{
     47	b43_write16f(dev, B43_MMIO_RADIO24_CONTROL, reg);
     48	return b43_read16(dev, B43_MMIO_RADIO24_DATA);
     49}
     50
     51static void b43_phy_ac_op_radio_write(struct b43_wldev *dev, u16 reg,
     52				      u16 value)
     53{
     54	b43_write16f(dev, B43_MMIO_RADIO24_CONTROL, reg);
     55	b43_write16(dev, B43_MMIO_RADIO24_DATA, value);
     56}
     57
     58static unsigned int b43_phy_ac_op_get_default_chan(struct b43_wldev *dev)
     59{
     60	if (b43_current_band(dev->wl) == NL80211_BAND_2GHZ)
     61		return 11;
     62	return 36;
     63}
     64
     65static enum b43_txpwr_result
     66b43_phy_ac_op_recalc_txpower(struct b43_wldev *dev, bool ignore_tssi)
     67{
     68	return B43_TXPWR_RES_DONE;
     69}
     70
     71static void b43_phy_ac_op_adjust_txpower(struct b43_wldev *dev)
     72{
     73}
     74
     75/**************************************************
     76 * PHY ops struct
     77 **************************************************/
     78
     79const struct b43_phy_operations b43_phyops_ac = {
     80	.allocate		= b43_phy_ac_op_allocate,
     81	.free			= b43_phy_ac_op_free,
     82	.phy_maskset		= b43_phy_ac_op_maskset,
     83	.radio_read		= b43_phy_ac_op_radio_read,
     84	.radio_write		= b43_phy_ac_op_radio_write,
     85	.get_default_chan	= b43_phy_ac_op_get_default_chan,
     86	.recalc_txpower		= b43_phy_ac_op_recalc_txpower,
     87	.adjust_txpower		= b43_phy_ac_op_adjust_txpower,
     88};