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/*
* Marvell Wireless LAN device driver: AP specific command handling
*
* Copyright (C) 2012, Marvell International Ltd.
*
* This software file (the "File") is distributed by Marvell International
* Ltd. under the terms of the GNU General Public License Version 2, June 1991
* (the "License"). You may use, redistribute and/or modify this File in
* accordance with the terms and conditions of the License, a copy of which
* is available by writing to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
*
* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
* this warranty disclaimer.
*/
#include "main.h"
/* This function initializes some of mwifiex_uap_bss_param variables.
* This helps FW in ignoring invalid values. These values may or may not
* be get updated to valid ones at later stage.
*/
void mwifiex_set_sys_config_invalid_data(struct mwifiex_uap_bss_param *config)
{
config->rts_threshold = 0x7FFF;
config->frag_threshold = 0x7FFF;
config->retry_limit = 0x7F;
}
/* Parse AP config structure and prepare TLV based command structure
* to be sent to FW for uAP configuration
*/
static int mwifiex_cmd_uap_sys_config(struct host_cmd_ds_command *cmd,
u16 cmd_action, void *cmd_buf)
{
u8 *tlv;
struct host_cmd_ds_sys_config *sys_config = &cmd->params.uap_sys_config;
struct host_cmd_tlv_dtim_period *dtim_period;
struct host_cmd_tlv_beacon_period *beacon_period;
struct host_cmd_tlv_ssid *ssid;
struct host_cmd_tlv_channel_band *chan_band;
struct host_cmd_tlv_frag_threshold *frag_threshold;
struct host_cmd_tlv_rts_threshold *rts_threshold;
struct host_cmd_tlv_retry_limit *retry_limit;
struct mwifiex_uap_bss_param *bss_cfg = cmd_buf;
u16 cmd_size;
cmd->command = cpu_to_le16(HostCmd_CMD_UAP_SYS_CONFIG);
cmd_size = (u16)(sizeof(struct host_cmd_ds_sys_config) + S_DS_GEN);
sys_config->action = cpu_to_le16(cmd_action);
tlv = sys_config->tlv;
if (bss_cfg->ssid.ssid_len) {
ssid = (struct host_cmd_tlv_ssid *)tlv;
ssid->tlv.type = cpu_to_le16(TLV_TYPE_UAP_SSID);
ssid->tlv.len = cpu_to_le16((u16)bss_cfg->ssid.ssid_len);
memcpy(ssid->ssid, bss_cfg->ssid.ssid, bss_cfg->ssid.ssid_len);
cmd_size += sizeof(struct host_cmd_tlv) +
bss_cfg->ssid.ssid_len;
tlv += sizeof(struct host_cmd_tlv) + bss_cfg->ssid.ssid_len;
}
if (bss_cfg->channel && bss_cfg->channel <= MAX_CHANNEL_BAND_BG) {
chan_band = (struct host_cmd_tlv_channel_band *)tlv;
chan_band->tlv.type = cpu_to_le16(TLV_TYPE_CHANNELBANDLIST);
chan_band->tlv.len =
cpu_to_le16(sizeof(struct host_cmd_tlv_channel_band) -
sizeof(struct host_cmd_tlv));
chan_band->band_config = bss_cfg->band_cfg;
chan_band->channel = bss_cfg->channel;
cmd_size += sizeof(struct host_cmd_tlv_channel_band);
tlv += sizeof(struct host_cmd_tlv_channel_band);
}
if (bss_cfg->beacon_period >= MIN_BEACON_PERIOD &&
bss_cfg->beacon_period <= MAX_BEACON_PERIOD) {
beacon_period = (struct host_cmd_tlv_beacon_period *)tlv;
beacon_period->tlv.type =
cpu_to_le16(TLV_TYPE_UAP_BEACON_PERIOD);
beacon_period->tlv.len =
cpu_to_le16(sizeof(struct host_cmd_tlv_beacon_period) -
sizeof(struct host_cmd_tlv));
beacon_period->period = cpu_to_le16(bss_cfg->beacon_period);
cmd_size += sizeof(struct host_cmd_tlv_beacon_period);
tlv += sizeof(struct host_cmd_tlv_beacon_period);
}
if (bss_cfg->dtim_period >= MIN_DTIM_PERIOD &&
bss_cfg->dtim_period <= MAX_DTIM_PERIOD) {
dtim_period = (struct host_cmd_tlv_dtim_period *)tlv;
dtim_period->tlv.type = cpu_to_le16(TLV_TYPE_UAP_DTIM_PERIOD);
dtim_period->tlv.len =
cpu_to_le16(sizeof(struct host_cmd_tlv_dtim_period) -
sizeof(struct host_cmd_tlv));
dtim_period->period = bss_cfg->dtim_period;
cmd_size += sizeof(struct host_cmd_tlv_dtim_period);
tlv += sizeof(struct host_cmd_tlv_dtim_period);
}
if (bss_cfg->rts_threshold <= MWIFIEX_RTS_MAX_VALUE) {
rts_threshold = (struct host_cmd_tlv_rts_threshold *)tlv;
rts_threshold->tlv.type =
cpu_to_le16(TLV_TYPE_UAP_RTS_THRESHOLD);
rts_threshold->tlv.len =
cpu_to_le16(sizeof(struct host_cmd_tlv_rts_threshold) -
sizeof(struct host_cmd_tlv));
rts_threshold->rts_thr = cpu_to_le16(bss_cfg->rts_threshold);
cmd_size += sizeof(struct host_cmd_tlv_frag_threshold);
tlv += sizeof(struct host_cmd_tlv_frag_threshold);
}
if ((bss_cfg->frag_threshold >= MWIFIEX_FRAG_MIN_VALUE) &&
(bss_cfg->frag_threshold <= MWIFIEX_FRAG_MAX_VALUE)) {
frag_threshold = (struct host_cmd_tlv_frag_threshold *)tlv;
frag_threshold->tlv.type =
cpu_to_le16(TLV_TYPE_UAP_FRAG_THRESHOLD);
frag_threshold->tlv.len =
cpu_to_le16(sizeof(struct host_cmd_tlv_frag_threshold) -
sizeof(struct host_cmd_tlv));
frag_threshold->frag_thr = cpu_to_le16(bss_cfg->frag_threshold);
cmd_size += sizeof(struct host_cmd_tlv_frag_threshold);
tlv += sizeof(struct host_cmd_tlv_frag_threshold);
}
if (bss_cfg->retry_limit <= MWIFIEX_RETRY_LIMIT) {
retry_limit = (struct host_cmd_tlv_retry_limit *)tlv;
retry_limit->tlv.type = cpu_to_le16(TLV_TYPE_UAP_RETRY_LIMIT);
retry_limit->tlv.len =
cpu_to_le16(sizeof(struct host_cmd_tlv_retry_limit) -
sizeof(struct host_cmd_tlv));
retry_limit->limit = (u8)bss_cfg->retry_limit;
cmd_size += sizeof(struct host_cmd_tlv_retry_limit);
tlv += sizeof(struct host_cmd_tlv_retry_limit);
}
cmd->size = cpu_to_le16(cmd_size);
return 0;
}
/* This function prepares the AP specific commands before sending them
* to the firmware.
* This is a generic function which calls specific command preparation
* routines based upon the command number.
*/
int mwifiex_uap_prepare_cmd(struct mwifiex_private *priv, u16 cmd_no,
u16 cmd_action, u32 cmd_oid,
void *data_buf, void *cmd_buf)
{
struct host_cmd_ds_command *cmd = cmd_buf;
switch (cmd_no) {
case HostCmd_CMD_UAP_SYS_CONFIG:
if (mwifiex_cmd_uap_sys_config(cmd, cmd_action, data_buf))
return -1;
break;
case HostCmd_CMD_UAP_BSS_START:
case HostCmd_CMD_UAP_BSS_STOP:
cmd->command = cpu_to_le16(cmd_no);
cmd->size = cpu_to_le16(S_DS_GEN);
break;
default:
dev_err(priv->adapter->dev,
"PREP_CMD: unknown cmd %#x\n", cmd_no);
return -1;
}
return 0;
}
/* This function sets the RF channel for AP.
*
* This function populates channel information in AP config structure
* and sends command to configure channel information in AP.
*/
int mwifiex_uap_set_channel(struct mwifiex_private *priv, int channel)
{
struct mwifiex_uap_bss_param *bss_cfg;
struct wiphy *wiphy = priv->wdev->wiphy;
bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
if (!bss_cfg)
return -ENOMEM;
bss_cfg->band_cfg = BAND_CONFIG_MANUAL;
bss_cfg->channel = channel;
if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_SYS_CONFIG,
HostCmd_ACT_GEN_SET, 0, bss_cfg)) {
wiphy_err(wiphy, "Failed to set the uAP channel\n");
kfree(bss_cfg);
return -1;
}
kfree(bss_cfg);
return 0;
}
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