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

   1/*
   2 * Broadcom B43 wireless driver
   3 * IEEE 802.11ac AC-PHY support
   4 *
   5 * Copyright (c) 2015 Rafał Miłecki <zajec5@gmail.com>
   6 *
   7 * This program is free software; you can redistribute  it and/or modify it
   8 * under  the terms of  the GNU General  Public License as published by the
   9 * Free Software Foundation;  either version 2 of the  License, or (at your
  10 * option) any later version.
  11 */
  12
  13#include "b43.h"
  14#include "phy_ac.h"
  15
  16/**************************************************
  17 * Basic PHY ops
  18 **************************************************/
  19
  20static int b43_phy_ac_op_allocate(struct b43_wldev *dev)
  21{
  22        struct b43_phy_ac *phy_ac;
  23
  24        phy_ac = kzalloc(sizeof(*phy_ac), GFP_KERNEL);
  25        if (!phy_ac)
  26                return -ENOMEM;
  27        dev->phy.ac = phy_ac;
  28
  29        return 0;
  30}
  31
  32static void b43_phy_ac_op_free(struct b43_wldev *dev)
  33{
  34        struct b43_phy *phy = &dev->phy;
  35        struct b43_phy_ac *phy_ac = phy->ac;
  36
  37        kfree(phy_ac);
  38        phy->ac = NULL;
  39}
  40
  41static void b43_phy_ac_op_maskset(struct b43_wldev *dev, u16 reg, u16 mask,
  42                                  u16 set)
  43{
  44        b43_write16f(dev, B43_MMIO_PHY_CONTROL, reg);
  45        b43_write16(dev, B43_MMIO_PHY_DATA,
  46                    (b43_read16(dev, B43_MMIO_PHY_DATA) & mask) | set);
  47}
  48
  49static u16 b43_phy_ac_op_radio_read(struct b43_wldev *dev, u16 reg)
  50{
  51        b43_write16f(dev, B43_MMIO_RADIO24_CONTROL, reg);
  52        return b43_read16(dev, B43_MMIO_RADIO24_DATA);
  53}
  54
  55static void b43_phy_ac_op_radio_write(struct b43_wldev *dev, u16 reg,
  56                                      u16 value)
  57{
  58        b43_write16f(dev, B43_MMIO_RADIO24_CONTROL, reg);
  59        b43_write16(dev, B43_MMIO_RADIO24_DATA, value);
  60}
  61
  62static unsigned int b43_phy_ac_op_get_default_chan(struct b43_wldev *dev)
  63{
  64        if (b43_current_band(dev->wl) == NL80211_BAND_2GHZ)
  65                return 11;
  66        return 36;
  67}
  68
  69static enum b43_txpwr_result
  70b43_phy_ac_op_recalc_txpower(struct b43_wldev *dev, bool ignore_tssi)
  71{
  72        return B43_TXPWR_RES_DONE;
  73}
  74
  75static void b43_phy_ac_op_adjust_txpower(struct b43_wldev *dev)
  76{
  77}
  78
  79/**************************************************
  80 * PHY ops struct
  81 **************************************************/
  82
  83const struct b43_phy_operations b43_phyops_ac = {
  84        .allocate               = b43_phy_ac_op_allocate,
  85        .free                   = b43_phy_ac_op_free,
  86        .phy_maskset            = b43_phy_ac_op_maskset,
  87        .radio_read             = b43_phy_ac_op_radio_read,
  88        .radio_write            = b43_phy_ac_op_radio_write,
  89        .get_default_chan       = b43_phy_ac_op_get_default_chan,
  90        .recalc_txpower         = b43_phy_ac_op_recalc_txpower,
  91        .adjust_txpower         = b43_phy_ac_op_adjust_txpower,
  92};
  93