LXR linux/drivers/net/wireless/broadcom/b43/phy

   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};
  89