Quelle  phy_ac.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Broadcom B43 wireless driver
 * IEEE 802.11ac AC-PHY support
 *
 * Copyright (c) 2015 Rafał Miłecki <zajec5@gmail.com>
 */

#include "b43.h"
#include "phy_ac.h"

/**************************************************
 * Basic PHY ops
 **************************************************/

static int b43_phy_ac_op_allocate(struct b43_wldev *dev)
{
 struct b43_phy_ac *phy_ac;

 phy_ac = kzalloc(sizeof(*phy_ac), GFP_KERNEL);
 if (!phy_ac)
  return -ENOMEM;
 dev->phy.ac = phy_ac;

 return 0;
}

static void b43_phy_ac_op_free(struct b43_wldev *dev)
{
 struct b43_phy *phy = &dev->phy;
 struct b43_phy_ac *phy_ac = phy->ac;

 kfree(phy_ac);
 phy->ac = NULL;
}

static void b43_phy_ac_op_maskset(struct b43_wldev *dev, u16 reg, u16 mask,
      u16 set)
{
 b43_write16f(dev, B43_MMIO_PHY_CONTROL, reg);
 b43_write16(dev, B43_MMIO_PHY_DATA,
      (b43_read16(dev, B43_MMIO_PHY_DATA) & mask) | set);
}

static u16 b43_phy_ac_op_radio_read(struct b43_wldev *dev, u16 reg)
{
 b43_write16f(dev, B43_MMIO_RADIO24_CONTROL, reg);
 return b43_read16(dev, B43_MMIO_RADIO24_DATA);
}

static void b43_phy_ac_op_radio_write(struct b43_wldev *dev, u16 reg,
          u16 value)
{
 b43_write16f(dev, B43_MMIO_RADIO24_CONTROL, reg);
 b43_write16(dev, B43_MMIO_RADIO24_DATA, value);
}

static unsigned int b43_phy_ac_op_get_default_chan(struct b43_wldev *dev)
{
 if (b43_current_band(dev->wl) == NL80211_BAND_2GHZ)
  return 11;
 return 36;
}

static enum b43_txpwr_result
b43_phy_ac_op_recalc_txpower(struct b43_wldev *dev, bool ignore_tssi)
{
 return B43_TXPWR_RES_DONE;
}

static void b43_phy_ac_op_adjust_txpower(struct b43_wldev *dev)
{
}

/**************************************************
 * PHY ops struct
 **************************************************/

const struct b43_phy_operations b43_phyops_ac = {
 .allocate  = b43_phy_ac_op_allocate,
 .free   = b43_phy_ac_op_free,
 .phy_maskset  = b43_phy_ac_op_maskset,
 .radio_read  = b43_phy_ac_op_radio_read,
 .radio_write  = b43_phy_ac_op_radio_write,
 .get_default_chan = b43_phy_ac_op_get_default_chan,
 .recalc_txpower  = b43_phy_ac_op_recalc_txpower,
 .adjust_txpower  = b43_phy_ac_op_adjust_txpower,
};