drivers/net/wireless/b43/phy_lp.c

   1 /*
   2
   3   Broadcom B43 wireless driver
   4   IEEE 802.11g LP-PHY driver
   5
   6   Copyright (c) 2008 Michael Buesch <mb@bu3sch.de>
   7
   8   This program is free software; you can redistribute it and/or modify
   9   it under the terms of the GNU General Public License as published by
  10   the Free Software Foundation; either version 2 of the License, or
  11   (at your option) any later version.
  12
  13   This program is distributed in the hope that it will be useful,
  14   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16   GNU General Public License for more details.
  17
  18   You should have received a copy of the GNU General Public License
  19   along with this program; see the file COPYING.  If not, write to
  20   the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
  21   Boston, MA 02110-1301, USA.
  22
  23 */
  24
  25 #include "b43.h"
  26 #include "phy_lp.h"
  27 #include "phy_common.h"
  28
  29
  30 static int b43_lpphy_op_allocate(struct b43_wldev *dev)
  31 {
  32         struct b43_phy_lp *lpphy;
  33
  34         lpphy = kzalloc(sizeof(*lpphy), GFP_KERNEL);
  35         if (!lpphy)
  36                 return -ENOMEM;
  37         dev->phy.lp = lpphy;
  38
  39         return 0;
  40 }
  41
  42 static void b43_lpphy_op_prepare_structs(struct b43_wldev *dev)
  43 {
  44         struct b43_phy *phy = &dev->phy;
  45         struct b43_phy_lp *lpphy = phy->lp;
  46
  47         memset(lpphy, 0, sizeof(*lpphy));
  48
  49         //TODO
  50 }
  51
  52 static void b43_lpphy_op_free(struct b43_wldev *dev)
  53 {
  54         struct b43_phy_lp *lpphy = dev->phy.lp;
  55
  56         kfree(lpphy);
  57         dev->phy.lp = NULL;
  58 }
  59
  60 static int b43_lpphy_op_init(struct b43_wldev *dev)
  61 {
  62         //TODO
  63
  64         return 0;
  65 }
  66
  67 static u16 b43_lpphy_op_read(struct b43_wldev *dev, u16 reg)
  68 {
  69         b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
  70         return b43_read16(dev, B43_MMIO_PHY_DATA);
  71 }
  72
  73 static void b43_lpphy_op_write(struct b43_wldev *dev, u16 reg, u16 value)
  74 {
  75         b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
  76         b43_write16(dev, B43_MMIO_PHY_DATA, value);
  77 }
  78
  79 static u16 b43_lpphy_op_radio_read(struct b43_wldev *dev, u16 reg)
  80 {
  81         /* Register 1 is a 32-bit register. */
  82         B43_WARN_ON(reg == 1);
  83         /* LP-PHY needs a special bit set for read access */
  84         if (dev->phy.rev < 2) {
  85                 if (reg != 0x4001)
  86                         reg |= 0x100;
  87         } else
  88                 reg |= 0x200;
  89
  90         b43_write16(dev, B43_MMIO_RADIO_CONTROL, reg);
  91         return b43_read16(dev, B43_MMIO_RADIO_DATA_LOW);
  92 }
  93
  94 static void b43_lpphy_op_radio_write(struct b43_wldev *dev, u16 reg, u16 value)
  95 {
  96         /* Register 1 is a 32-bit register. */
  97         B43_WARN_ON(reg == 1);
  98
  99         b43_write16(dev, B43_MMIO_RADIO_CONTROL, reg);
 100         b43_write16(dev, B43_MMIO_RADIO_DATA_LOW, value);
 101 }
 102
 103 static void b43_lpphy_op_software_rfkill(struct b43_wldev *dev,
 104                                          enum rfkill_state state)
 105 {
 106         //TODO
 107 }
 108
 109 static int b43_lpphy_op_switch_channel(struct b43_wldev *dev,
 110                                        unsigned int new_channel)
 111 {
 112         //TODO
 113         return 0;
 114 }
 115
 116 static unsigned int b43_lpphy_op_get_default_chan(struct b43_wldev *dev)
 117 {
 118         return 1; /* Default to channel 1 */
 119 }
 120
 121 static void b43_lpphy_op_set_rx_antenna(struct b43_wldev *dev, int antenna)
 122 {
 123         //TODO
 124 }
 125
 126 static void b43_lpphy_op_adjust_txpower(struct b43_wldev *dev)
 127 {
 128         //TODO
 129 }
 130
 131 static enum b43_txpwr_result b43_lpphy_op_recalc_txpower(struct b43_wldev *dev,
 132                                                          bool ignore_tssi)
 133 {
 134         //TODO
 135         return B43_TXPWR_RES_DONE;
 136 }
 137
 138
 139 const struct b43_phy_operations b43_phyops_lp = {
 140         .allocate               = b43_lpphy_op_allocate,
 141         .free                   = b43_lpphy_op_free,
 142         .prepare_structs        = b43_lpphy_op_prepare_structs,
 143         .init                   = b43_lpphy_op_init,
 144         .phy_read               = b43_lpphy_op_read,
 145         .phy_write              = b43_lpphy_op_write,
 146         .radio_read             = b43_lpphy_op_radio_read,
 147         .radio_write            = b43_lpphy_op_radio_write,
 148         .software_rfkill        = b43_lpphy_op_software_rfkill,
 149         .switch_analog          = b43_phyop_switch_analog_generic,
 150         .switch_channel         = b43_lpphy_op_switch_channel,
 151         .get_default_chan       = b43_lpphy_op_get_default_chan,
 152         .set_rx_antenna         = b43_lpphy_op_set_rx_antenna,
 153         .recalc_txpower         = b43_lpphy_op_recalc_txpower,
 154         .adjust_txpower         = b43_lpphy_op_adjust_txpower,
 155 };