drivers/net/wireless/ti/wl18xx/acx.c

   1 /*
   2  * This file is part of wl18xx
   3  *
   4  * Copyright (C) 2011 Texas Instruments Inc.
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * version 2 as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  18  * 02110-1301 USA
  19  *
  20  */
  21
  22 #include "../wlcore/cmd.h"
  23 #include "../wlcore/debug.h"
  24 #include "../wlcore/acx.h"
  25
  26 #include "acx.h"
  27
  28 int wl18xx_acx_host_if_cfg_bitmap(struct wl1271 *wl, u32 host_cfg_bitmap,
  29                                   u32 sdio_blk_size, u32 extra_mem_blks,
  30                                   u32 len_field_size)
  31 {
  32         struct wl18xx_acx_host_config_bitmap *bitmap_conf;
  33         int ret;
  34
  35         wl1271_debug(DEBUG_ACX, "acx cfg bitmap %d blk %d spare %d field %d",
  36                      host_cfg_bitmap, sdio_blk_size, extra_mem_blks,
  37                      len_field_size);
  38
  39         bitmap_conf = kzalloc(sizeof(*bitmap_conf), GFP_KERNEL);
  40         if (!bitmap_conf) {
  41                 ret = -ENOMEM;
  42                 goto out;
  43         }
  44
  45         bitmap_conf->host_cfg_bitmap = cpu_to_le32(host_cfg_bitmap);
  46         bitmap_conf->host_sdio_block_size = cpu_to_le32(sdio_blk_size);
  47         bitmap_conf->extra_mem_blocks = cpu_to_le32(extra_mem_blks);
  48         bitmap_conf->length_field_size = cpu_to_le32(len_field_size);
  49
  50         ret = wl1271_cmd_configure(wl, ACX_HOST_IF_CFG_BITMAP,
  51                                    bitmap_conf, sizeof(*bitmap_conf));
  52         if (ret < 0) {
  53                 wl1271_warning("wl1271 bitmap config opt failed: %d", ret);
  54                 goto out;
  55         }
  56
  57 out:
  58         kfree(bitmap_conf);
  59
  60         return ret;
  61 }
  62
  63 int wl18xx_acx_set_checksum_state(struct wl1271 *wl)
  64 {
  65         struct wl18xx_acx_checksum_state *acx;
  66         int ret;
  67
  68         wl1271_debug(DEBUG_ACX, "acx checksum state");
  69
  70         acx = kzalloc(sizeof(*acx), GFP_KERNEL);
  71         if (!acx) {
  72                 ret = -ENOMEM;
  73                 goto out;
  74         }
  75
  76         acx->checksum_state = CHECKSUM_OFFLOAD_ENABLED;
  77
  78         ret = wl1271_cmd_configure(wl, ACX_CSUM_CONFIG, acx, sizeof(*acx));
  79         if (ret < 0) {
  80                 wl1271_warning("failed to set Tx checksum state: %d", ret);
  81                 goto out;
  82         }
  83
  84 out:
  85         kfree(acx);
  86         return ret;
  87 }
  88
  89 int wl18xx_acx_clear_statistics(struct wl1271 *wl)
  90 {
  91         struct wl18xx_acx_clear_statistics *acx;
  92         int ret = 0;
  93
  94         wl1271_debug(DEBUG_ACX, "acx clear statistics");
  95
  96         acx = kzalloc(sizeof(*acx), GFP_KERNEL);
  97         if (!acx) {
  98                 ret = -ENOMEM;
  99                 goto out;
 100         }
 101
 102         ret = wl1271_cmd_configure(wl, ACX_CLEAR_STATISTICS, acx, sizeof(*acx));
 103         if (ret < 0) {
 104                 wl1271_warning("failed to clear firmware statistics: %d", ret);
 105                 goto out;
 106         }
 107
 108 out:
 109         kfree(acx);
 110         return ret;
 111 }
 112
 113 int wl18xx_acx_peer_ht_operation_mode(struct wl1271 *wl, u8 hlid, bool wide)
 114 {
 115         struct wlcore_peer_ht_operation_mode *acx;
 116         int ret;
 117
 118         wl1271_debug(DEBUG_ACX, "acx peer ht operation mode hlid %d bw %d",
 119                      hlid, wide);
 120
 121         acx = kzalloc(sizeof(*acx), GFP_KERNEL);
 122         if (!acx) {
 123                 ret = -ENOMEM;
 124                 goto out;
 125         }
 126
 127         acx->hlid = hlid;
 128         acx->bandwidth = wide ? WLCORE_BANDWIDTH_40MHZ : WLCORE_BANDWIDTH_20MHZ;
 129
 130         ret = wl1271_cmd_configure(wl, ACX_PEER_HT_OPERATION_MODE_CFG, acx,
 131                                    sizeof(*acx));
 132
 133         if (ret < 0) {
 134                 wl1271_warning("acx peer ht operation mode failed: %d", ret);
 135                 goto out;
 136         }
 137
 138 out:
 139         kfree(acx);
 140         return ret;
 141
 142 }
 143
 144 /*
 145  * this command is basically the same as wl1271_acx_ht_capabilities,
 146  * with the addition of supported rates. they should be unified in
 147  * the next fw api change
 148  */
 149 int wl18xx_acx_set_peer_cap(struct wl1271 *wl,
 150                             struct ieee80211_sta_ht_cap *ht_cap,
 151                             bool allow_ht_operation,
 152                             u32 rate_set, u8 hlid)
 153 {
 154         struct wlcore_acx_peer_cap *acx;
 155         int ret = 0;
 156         u32 ht_capabilites = 0;
 157
 158         wl1271_debug(DEBUG_ACX,
 159                      "acx set cap ht_supp: %d ht_cap: %d rates: 0x%x",
 160                      ht_cap->ht_supported, ht_cap->cap, rate_set);
 161
 162         acx = kzalloc(sizeof(*acx), GFP_KERNEL);
 163         if (!acx) {
 164                 ret = -ENOMEM;
 165                 goto out;
 166         }
 167
 168         if (allow_ht_operation && ht_cap->ht_supported) {
 169                 /* no need to translate capabilities - use the spec values */
 170                 ht_capabilites = ht_cap->cap;
 171
 172                 /*
 173                  * this bit is not employed by the spec but only by FW to
 174                  * indicate peer HT support
 175                  */
 176                 ht_capabilites |= WL12XX_HT_CAP_HT_OPERATION;
 177
 178                 /* get data from A-MPDU parameters field */
 179                 acx->ampdu_max_length = ht_cap->ampdu_factor;
 180                 acx->ampdu_min_spacing = ht_cap->ampdu_density;
 181         }
 182
 183         acx->hlid = hlid;
 184         acx->ht_capabilites = cpu_to_le32(ht_capabilites);
 185         acx->supported_rates = cpu_to_le32(rate_set);
 186
 187         ret = wl1271_cmd_configure(wl, ACX_PEER_CAP, acx, sizeof(*acx));
 188         if (ret < 0) {
 189                 wl1271_warning("acx ht capabilities setting failed: %d", ret);
 190                 goto out;
 191         }
 192
 193 out:
 194         kfree(acx);
 195         return ret;
 196 }