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 void lpphy_table_init(struct b43_wldev *dev)
  61 {
  62         //TODO
  63 }
  64
  65 static void lpphy_baseband_rev0_1_init(struct b43_wldev *dev)
  66 {
  67         B43_WARN_ON(1);//TODO rev < 2 not supported, yet.
  68 }
  69
  70 static void lpphy_baseband_rev2plus_init(struct b43_wldev *dev)
  71 {
  72         //TODO
  73 }
  74
  75 static void lpphy_baseband_init(struct b43_wldev *dev)
  76 {
  77         lpphy_table_init(dev);
  78         if (dev->phy.rev >= 2)
  79                 lpphy_baseband_rev2plus_init(dev);
  80         else
  81                 lpphy_baseband_rev0_1_init(dev);
  82 }
  83
  84 static void lpphy_radio_init(struct b43_wldev *dev)
  85 {
  86         //TODO
  87 }
  88
  89 static int b43_lpphy_op_init(struct b43_wldev *dev)
  90 {
  91         /* TODO: band SPROM */
  92         lpphy_baseband_init(dev);
  93         lpphy_radio_init(dev);
  94
  95         //TODO
  96
  97         return 0;
  98 }
  99
 100 static u16 b43_lpphy_op_read(struct b43_wldev *dev, u16 reg)
 101 {
 102         b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
 103         return b43_read16(dev, B43_MMIO_PHY_DATA);
 104 }
 105
 106 static void b43_lpphy_op_write(struct b43_wldev *dev, u16 reg, u16 value)
 107 {
 108         b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
 109         b43_write16(dev, B43_MMIO_PHY_DATA, value);
 110 }
 111
 112 static u16 b43_lpphy_op_radio_read(struct b43_wldev *dev, u16 reg)
 113 {
 114         /* Register 1 is a 32-bit register. */
 115         B43_WARN_ON(reg == 1);
 116         /* LP-PHY needs a special bit set for read access */
 117         if (dev->phy.rev < 2) {
 118                 if (reg != 0x4001)
 119                         reg |= 0x100;
 120         } else
 121                 reg |= 0x200;
 122
 123         b43_write16(dev, B43_MMIO_RADIO_CONTROL, reg);
 124         return b43_read16(dev, B43_MMIO_RADIO_DATA_LOW);
 125 }
 126
 127 static void b43_lpphy_op_radio_write(struct b43_wldev *dev, u16 reg, u16 value)
 128 {
 129         /* Register 1 is a 32-bit register. */
 130         B43_WARN_ON(reg == 1);
 131
 132         b43_write16(dev, B43_MMIO_RADIO_CONTROL, reg);
 133         b43_write16(dev, B43_MMIO_RADIO_DATA_LOW, value);
 134 }
 135
 136 static void b43_lpphy_op_software_rfkill(struct b43_wldev *dev,
 137                                          enum rfkill_state state)
 138 {
 139         //TODO
 140 }
 141
 142 static int b43_lpphy_op_switch_channel(struct b43_wldev *dev,
 143                                        unsigned int new_channel)
 144 {
 145         //TODO
 146         return 0;
 147 }
 148
 149 static unsigned int b43_lpphy_op_get_default_chan(struct b43_wldev *dev)
 150 {
 151         return 1; /* Default to channel 1 */
 152 }
 153
 154 static void b43_lpphy_op_set_rx_antenna(struct b43_wldev *dev, int antenna)
 155 {
 156         //TODO
 157 }
 158
 159 static void b43_lpphy_op_adjust_txpower(struct b43_wldev *dev)
 160 {
 161         //TODO
 162 }
 163
 164 static enum b43_txpwr_result b43_lpphy_op_recalc_txpower(struct b43_wldev *dev,
 165                                                          bool ignore_tssi)
 166 {
 167         //TODO
 168         return B43_TXPWR_RES_DONE;
 169 }
 170
 171
 172 const struct b43_phy_operations b43_phyops_lp = {
 173         .allocate               = b43_lpphy_op_allocate,
 174         .free                   = b43_lpphy_op_free,
 175         .prepare_structs        = b43_lpphy_op_prepare_structs,
 176         .init                   = b43_lpphy_op_init,
 177         .phy_read               = b43_lpphy_op_read,
 178         .phy_write              = b43_lpphy_op_write,
 179         .radio_read             = b43_lpphy_op_radio_read,
 180         .radio_write            = b43_lpphy_op_radio_write,
 181         .software_rfkill        = b43_lpphy_op_software_rfkill,
 182         .switch_analog          = b43_phyop_switch_analog_generic,
 183         .switch_channel         = b43_lpphy_op_switch_channel,
 184         .get_default_chan       = b43_lpphy_op_get_default_chan,
 185         .set_rx_antenna         = b43_lpphy_op_set_rx_antenna,
 186         .recalc_txpower         = b43_lpphy_op_recalc_txpower,
 187         .adjust_txpower         = b43_lpphy_op_adjust_txpower,
 188 };