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wmi.c
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wmi.c
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/*
* Copyright (c) 2004-2011 Atheros Communications Inc.
* Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <linux/ip.h>
#include <linux/in.h>
#include "core.h"
#include "debug.h"
#include "testmode.h"
#include "trace.h"
#include "../regd.h"
#include "../regd_common.h"
static int ath6kl_wmi_sync_point(struct wmi *wmi, u8 if_idx);
static const s32 wmi_rate_tbl[][2] = {
/* {W/O SGI, with SGI} */
{1000, 1000},
{2000, 2000},
{5500, 5500},
{11000, 11000},
{6000, 6000},
{9000, 9000},
{12000, 12000},
{18000, 18000},
{24000, 24000},
{36000, 36000},
{48000, 48000},
{54000, 54000},
{6500, 7200},
{13000, 14400},
{19500, 21700},
{26000, 28900},
{39000, 43300},
{52000, 57800},
{58500, 65000},
{65000, 72200},
{13500, 15000},
{27000, 30000},
{40500, 45000},
{54000, 60000},
{81000, 90000},
{108000, 120000},
{121500, 135000},
{135000, 150000},
{0, 0}
};
static const s32 wmi_rate_tbl_mcs15[][2] = {
/* {W/O SGI, with SGI} */
{1000, 1000},
{2000, 2000},
{5500, 5500},
{11000, 11000},
{6000, 6000},
{9000, 9000},
{12000, 12000},
{18000, 18000},
{24000, 24000},
{36000, 36000},
{48000, 48000},
{54000, 54000},
{6500, 7200}, /* HT 20, MCS 0 */
{13000, 14400},
{19500, 21700},
{26000, 28900},
{39000, 43300},
{52000, 57800},
{58500, 65000},
{65000, 72200},
{13000, 14400}, /* HT 20, MCS 8 */
{26000, 28900},
{39000, 43300},
{52000, 57800},
{78000, 86700},
{104000, 115600},
{117000, 130000},
{130000, 144400}, /* HT 20, MCS 15 */
{13500, 15000}, /*HT 40, MCS 0 */
{27000, 30000},
{40500, 45000},
{54000, 60000},
{81000, 90000},
{108000, 120000},
{121500, 135000},
{135000, 150000},
{27000, 30000}, /*HT 40, MCS 8 */
{54000, 60000},
{81000, 90000},
{108000, 120000},
{162000, 180000},
{216000, 240000},
{243000, 270000},
{270000, 300000}, /*HT 40, MCS 15 */
{0, 0}
};
/* 802.1d to AC mapping. Refer pg 57 of WMM-test-plan-v1.2 */
static const u8 up_to_ac[] = {
WMM_AC_BE,
WMM_AC_BK,
WMM_AC_BK,
WMM_AC_BE,
WMM_AC_VI,
WMM_AC_VI,
WMM_AC_VO,
WMM_AC_VO,
};
void ath6kl_wmi_set_control_ep(struct wmi *wmi, enum htc_endpoint_id ep_id)
{
if (WARN_ON(ep_id == ENDPOINT_UNUSED || ep_id >= ENDPOINT_MAX))
return;
wmi->ep_id = ep_id;
}
enum htc_endpoint_id ath6kl_wmi_get_control_ep(struct wmi *wmi)
{
return wmi->ep_id;
}
struct ath6kl_vif *ath6kl_get_vif_by_index(struct ath6kl *ar, u8 if_idx)
{
struct ath6kl_vif *vif, *found = NULL;
if (WARN_ON(if_idx > (ar->vif_max - 1)))
return NULL;
/* FIXME: Locking */
spin_lock_bh(&ar->list_lock);
list_for_each_entry(vif, &ar->vif_list, list) {
if (vif->fw_vif_idx == if_idx) {
found = vif;
break;
}
}
spin_unlock_bh(&ar->list_lock);
return found;
}
/* Performs DIX to 802.3 encapsulation for transmit packets.
* Assumes the entire DIX header is contiguous and that there is
* enough room in the buffer for a 802.3 mac header and LLC+SNAP headers.
*/
int ath6kl_wmi_dix_2_dot3(struct wmi *wmi, struct sk_buff *skb)
{
struct ath6kl_llc_snap_hdr *llc_hdr;
struct ethhdr *eth_hdr;
size_t new_len;
__be16 type;
u8 *datap;
u16 size;
if (WARN_ON(skb == NULL))
return -EINVAL;
size = sizeof(struct ath6kl_llc_snap_hdr) + sizeof(struct wmi_data_hdr);
if (skb_headroom(skb) < size)
return -ENOMEM;
eth_hdr = (struct ethhdr *) skb->data;
type = eth_hdr->h_proto;
if (!is_ethertype(be16_to_cpu(type))) {
ath6kl_dbg(ATH6KL_DBG_WMI,
"%s: pkt is already in 802.3 format\n", __func__);
return 0;
}
new_len = skb->len - sizeof(*eth_hdr) + sizeof(*llc_hdr);
skb_push(skb, sizeof(struct ath6kl_llc_snap_hdr));
datap = skb->data;
eth_hdr->h_proto = cpu_to_be16(new_len);
memcpy(datap, eth_hdr, sizeof(*eth_hdr));
llc_hdr = (struct ath6kl_llc_snap_hdr *)(datap + sizeof(*eth_hdr));
llc_hdr->dsap = 0xAA;
llc_hdr->ssap = 0xAA;
llc_hdr->cntl = 0x03;
llc_hdr->org_code[0] = 0x0;
llc_hdr->org_code[1] = 0x0;
llc_hdr->org_code[2] = 0x0;
llc_hdr->eth_type = type;
return 0;
}
static int ath6kl_wmi_meta_add(struct wmi *wmi, struct sk_buff *skb,
u8 *version, void *tx_meta_info)
{
struct wmi_tx_meta_v1 *v1;
struct wmi_tx_meta_v2 *v2;
if (WARN_ON(skb == NULL || version == NULL))
return -EINVAL;
switch (*version) {
case WMI_META_VERSION_1:
skb_push(skb, WMI_MAX_TX_META_SZ);
v1 = (struct wmi_tx_meta_v1 *) skb->data;
v1->pkt_id = 0;
v1->rate_plcy_id = 0;
*version = WMI_META_VERSION_1;
break;
case WMI_META_VERSION_2:
skb_push(skb, WMI_MAX_TX_META_SZ);
v2 = (struct wmi_tx_meta_v2 *) skb->data;
memcpy(v2, (struct wmi_tx_meta_v2 *) tx_meta_info,
sizeof(struct wmi_tx_meta_v2));
break;
}
return 0;
}
int ath6kl_wmi_data_hdr_add(struct wmi *wmi, struct sk_buff *skb,
u8 msg_type, u32 flags,
enum wmi_data_hdr_data_type data_type,
u8 meta_ver, void *tx_meta_info, u8 if_idx)
{
struct wmi_data_hdr *data_hdr;
int ret;
if (WARN_ON(skb == NULL || (if_idx > wmi->parent_dev->vif_max - 1)))
return -EINVAL;
if (tx_meta_info) {
ret = ath6kl_wmi_meta_add(wmi, skb, &meta_ver, tx_meta_info);
if (ret)
return ret;
}
skb_push(skb, sizeof(struct wmi_data_hdr));
data_hdr = (struct wmi_data_hdr *)skb->data;
memset(data_hdr, 0, sizeof(struct wmi_data_hdr));
data_hdr->info = msg_type << WMI_DATA_HDR_MSG_TYPE_SHIFT;
data_hdr->info |= data_type << WMI_DATA_HDR_DATA_TYPE_SHIFT;
if (flags & WMI_DATA_HDR_FLAGS_MORE)
data_hdr->info |= WMI_DATA_HDR_MORE;
if (flags & WMI_DATA_HDR_FLAGS_EOSP)
data_hdr->info3 |= cpu_to_le16(WMI_DATA_HDR_EOSP);
data_hdr->info2 |= cpu_to_le16(meta_ver << WMI_DATA_HDR_META_SHIFT);
data_hdr->info3 |= cpu_to_le16(if_idx & WMI_DATA_HDR_IF_IDX_MASK);
return 0;
}
u8 ath6kl_wmi_determine_user_priority(u8 *pkt, u32 layer2_pri)
{
struct iphdr *ip_hdr = (struct iphdr *) pkt;
u8 ip_pri;
/*
* Determine IPTOS priority
*
* IP-TOS - 8bits
* : DSCP(6-bits) ECN(2-bits)
* : DSCP - P2 P1 P0 X X X
* where (P2 P1 P0) form 802.1D
*/
ip_pri = ip_hdr->tos >> 5;
ip_pri &= 0x7;
if ((layer2_pri & 0x7) > ip_pri)
return (u8) layer2_pri & 0x7;
else
return ip_pri;
}
u8 ath6kl_wmi_get_traffic_class(u8 user_priority)
{
return up_to_ac[user_priority & 0x7];
}
int ath6kl_wmi_implicit_create_pstream(struct wmi *wmi, u8 if_idx,
struct sk_buff *skb,
u32 layer2_priority, bool wmm_enabled,
u8 *ac)
{
struct wmi_data_hdr *data_hdr;
struct ath6kl_llc_snap_hdr *llc_hdr;
struct wmi_create_pstream_cmd cmd;
u32 meta_size, hdr_size;
u16 ip_type = IP_ETHERTYPE;
u8 stream_exist, usr_pri;
u8 traffic_class = WMM_AC_BE;
u8 *datap;
if (WARN_ON(skb == NULL))
return -EINVAL;
datap = skb->data;
data_hdr = (struct wmi_data_hdr *) datap;
meta_size = ((le16_to_cpu(data_hdr->info2) >> WMI_DATA_HDR_META_SHIFT) &
WMI_DATA_HDR_META_MASK) ? WMI_MAX_TX_META_SZ : 0;
if (!wmm_enabled) {
/* If WMM is disabled all traffic goes as BE traffic */
usr_pri = 0;
} else {
hdr_size = sizeof(struct ethhdr);
llc_hdr = (struct ath6kl_llc_snap_hdr *)(datap +
sizeof(struct
wmi_data_hdr) +
meta_size + hdr_size);
if (llc_hdr->eth_type == htons(ip_type)) {
/*
* Extract the endpoint info from the TOS field
* in the IP header.
*/
usr_pri =
ath6kl_wmi_determine_user_priority(((u8 *) llc_hdr) +
sizeof(struct ath6kl_llc_snap_hdr),
layer2_priority);
} else {
usr_pri = layer2_priority & 0x7;
}
/*
* Queue the EAPOL frames in the same WMM_AC_VO queue
* as that of management frames.
*/
if (skb->protocol == cpu_to_be16(ETH_P_PAE))
usr_pri = WMI_VOICE_USER_PRIORITY;
}
/*
* workaround for WMM S5
*
* FIXME: wmi->traffic_class is always 100 so this test doesn't
* make sense
*/
if ((wmi->traffic_class == WMM_AC_VI) &&
((usr_pri == 5) || (usr_pri == 4)))
usr_pri = 1;
/* Convert user priority to traffic class */
traffic_class = up_to_ac[usr_pri & 0x7];
wmi_data_hdr_set_up(data_hdr, usr_pri);
spin_lock_bh(&wmi->lock);
stream_exist = wmi->fat_pipe_exist;
spin_unlock_bh(&wmi->lock);
if (!(stream_exist & (1 << traffic_class))) {
memset(&cmd, 0, sizeof(cmd));
cmd.traffic_class = traffic_class;
cmd.user_pri = usr_pri;
cmd.inactivity_int =
cpu_to_le32(WMI_IMPLICIT_PSTREAM_INACTIVITY_INT);
/* Implicit streams are created with TSID 0xFF */
cmd.tsid = WMI_IMPLICIT_PSTREAM;
ath6kl_wmi_create_pstream_cmd(wmi, if_idx, &cmd);
}
*ac = traffic_class;
return 0;
}
int ath6kl_wmi_dot11_hdr_remove(struct wmi *wmi, struct sk_buff *skb)
{
struct ieee80211_hdr_3addr *pwh, wh;
struct ath6kl_llc_snap_hdr *llc_hdr;
struct ethhdr eth_hdr;
u32 hdr_size;
u8 *datap;
__le16 sub_type;
if (WARN_ON(skb == NULL))
return -EINVAL;
datap = skb->data;
pwh = (struct ieee80211_hdr_3addr *) datap;
sub_type = pwh->frame_control & cpu_to_le16(IEEE80211_FCTL_STYPE);
memcpy((u8 *) &wh, datap, sizeof(struct ieee80211_hdr_3addr));
/* Strip off the 802.11 header */
if (sub_type == cpu_to_le16(IEEE80211_STYPE_QOS_DATA)) {
hdr_size = roundup(sizeof(struct ieee80211_qos_hdr),
sizeof(u32));
skb_pull(skb, hdr_size);
} else if (sub_type == cpu_to_le16(IEEE80211_STYPE_DATA)) {
skb_pull(skb, sizeof(struct ieee80211_hdr_3addr));
}
datap = skb->data;
llc_hdr = (struct ath6kl_llc_snap_hdr *)(datap);
memset(ð_hdr, 0, sizeof(eth_hdr));
eth_hdr.h_proto = llc_hdr->eth_type;
switch ((le16_to_cpu(wh.frame_control)) &
(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) {
case IEEE80211_FCTL_TODS:
memcpy(eth_hdr.h_dest, wh.addr3, ETH_ALEN);
memcpy(eth_hdr.h_source, wh.addr2, ETH_ALEN);
break;
case IEEE80211_FCTL_FROMDS:
memcpy(eth_hdr.h_dest, wh.addr1, ETH_ALEN);
memcpy(eth_hdr.h_source, wh.addr3, ETH_ALEN);
break;
case IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS:
break;
default:
memcpy(eth_hdr.h_dest, wh.addr1, ETH_ALEN);
memcpy(eth_hdr.h_source, wh.addr2, ETH_ALEN);
break;
}
skb_pull(skb, sizeof(struct ath6kl_llc_snap_hdr));
skb_push(skb, sizeof(eth_hdr));
datap = skb->data;
memcpy(datap, ð_hdr, sizeof(eth_hdr));
return 0;
}
/*
* Performs 802.3 to DIX encapsulation for received packets.
* Assumes the entire 802.3 header is contiguous.
*/
int ath6kl_wmi_dot3_2_dix(struct sk_buff *skb)
{
struct ath6kl_llc_snap_hdr *llc_hdr;
struct ethhdr eth_hdr;
u8 *datap;
if (WARN_ON(skb == NULL))
return -EINVAL;
datap = skb->data;
memcpy(ð_hdr, datap, sizeof(eth_hdr));
llc_hdr = (struct ath6kl_llc_snap_hdr *) (datap + sizeof(eth_hdr));
eth_hdr.h_proto = llc_hdr->eth_type;
skb_pull(skb, sizeof(struct ath6kl_llc_snap_hdr));
datap = skb->data;
memcpy(datap, ð_hdr, sizeof(eth_hdr));
return 0;
}
static int ath6kl_wmi_tx_complete_event_rx(u8 *datap, int len)
{
struct tx_complete_msg_v1 *msg_v1;
struct wmi_tx_complete_event *evt;
int index;
u16 size;
evt = (struct wmi_tx_complete_event *) datap;
ath6kl_dbg(ATH6KL_DBG_WMI, "comp: %d %d %d\n",
evt->num_msg, evt->msg_len, evt->msg_type);
for (index = 0; index < evt->num_msg; index++) {
size = sizeof(struct wmi_tx_complete_event) +
(index * sizeof(struct tx_complete_msg_v1));
msg_v1 = (struct tx_complete_msg_v1 *)(datap + size);
ath6kl_dbg(ATH6KL_DBG_WMI, "msg: %d %d %d %d\n",
msg_v1->status, msg_v1->pkt_id,
msg_v1->rate_idx, msg_v1->ack_failures);
}
return 0;
}
static int ath6kl_wmi_remain_on_chnl_event_rx(struct wmi *wmi, u8 *datap,
int len, struct ath6kl_vif *vif)
{
struct wmi_remain_on_chnl_event *ev;
u32 freq;
u32 dur;
struct ieee80211_channel *chan;
struct ath6kl *ar = wmi->parent_dev;
u32 id;
if (len < sizeof(*ev))
return -EINVAL;
ev = (struct wmi_remain_on_chnl_event *) datap;
freq = le32_to_cpu(ev->freq);
dur = le32_to_cpu(ev->duration);
ath6kl_dbg(ATH6KL_DBG_WMI, "remain_on_chnl: freq=%u dur=%u\n",
freq, dur);
chan = ieee80211_get_channel(ar->wiphy, freq);
if (!chan) {
ath6kl_dbg(ATH6KL_DBG_WMI,
"remain_on_chnl: Unknown channel (freq=%u)\n",
freq);
return -EINVAL;
}
id = vif->last_roc_id;
cfg80211_ready_on_channel(&vif->wdev, id, chan,
dur, GFP_ATOMIC);
return 0;
}
static int ath6kl_wmi_cancel_remain_on_chnl_event_rx(struct wmi *wmi,
u8 *datap, int len,
struct ath6kl_vif *vif)
{
struct wmi_cancel_remain_on_chnl_event *ev;
u32 freq;
u32 dur;
struct ieee80211_channel *chan;
struct ath6kl *ar = wmi->parent_dev;
u32 id;
if (len < sizeof(*ev))
return -EINVAL;
ev = (struct wmi_cancel_remain_on_chnl_event *) datap;
freq = le32_to_cpu(ev->freq);
dur = le32_to_cpu(ev->duration);
ath6kl_dbg(ATH6KL_DBG_WMI,
"cancel_remain_on_chnl: freq=%u dur=%u status=%u\n",
freq, dur, ev->status);
chan = ieee80211_get_channel(ar->wiphy, freq);
if (!chan) {
ath6kl_dbg(ATH6KL_DBG_WMI,
"cancel_remain_on_chnl: Unknown channel (freq=%u)\n",
freq);
return -EINVAL;
}
if (vif->last_cancel_roc_id &&
vif->last_cancel_roc_id + 1 == vif->last_roc_id)
id = vif->last_cancel_roc_id; /* event for cancel command */
else
id = vif->last_roc_id; /* timeout on uncanceled r-o-c */
vif->last_cancel_roc_id = 0;
cfg80211_remain_on_channel_expired(&vif->wdev, id, chan, GFP_ATOMIC);
return 0;
}
static int ath6kl_wmi_tx_status_event_rx(struct wmi *wmi, u8 *datap, int len,
struct ath6kl_vif *vif)
{
struct wmi_tx_status_event *ev;
u32 id;
if (len < sizeof(*ev))
return -EINVAL;
ev = (struct wmi_tx_status_event *) datap;
id = le32_to_cpu(ev->id);
ath6kl_dbg(ATH6KL_DBG_WMI, "tx_status: id=%x ack_status=%u\n",
id, ev->ack_status);
if (wmi->last_mgmt_tx_frame) {
cfg80211_mgmt_tx_status(&vif->wdev, id,
wmi->last_mgmt_tx_frame,
wmi->last_mgmt_tx_frame_len,
!!ev->ack_status, GFP_ATOMIC);
kfree(wmi->last_mgmt_tx_frame);
wmi->last_mgmt_tx_frame = NULL;
wmi->last_mgmt_tx_frame_len = 0;
}
return 0;
}
static int ath6kl_wmi_rx_probe_req_event_rx(struct wmi *wmi, u8 *datap, int len,
struct ath6kl_vif *vif)
{
struct wmi_p2p_rx_probe_req_event *ev;
u32 freq;
u16 dlen;
if (len < sizeof(*ev))
return -EINVAL;
ev = (struct wmi_p2p_rx_probe_req_event *) datap;
freq = le32_to_cpu(ev->freq);
dlen = le16_to_cpu(ev->len);
if (datap + len < ev->data + dlen) {
ath6kl_err("invalid wmi_p2p_rx_probe_req_event: len=%d dlen=%u\n",
len, dlen);
return -EINVAL;
}
ath6kl_dbg(ATH6KL_DBG_WMI,
"rx_probe_req: len=%u freq=%u probe_req_report=%d\n",
dlen, freq, vif->probe_req_report);
if (vif->probe_req_report || vif->nw_type == AP_NETWORK)
cfg80211_rx_mgmt(&vif->wdev, freq, 0, ev->data, dlen, 0);
return 0;
}
static int ath6kl_wmi_p2p_capabilities_event_rx(u8 *datap, int len)
{
struct wmi_p2p_capabilities_event *ev;
u16 dlen;
if (len < sizeof(*ev))
return -EINVAL;
ev = (struct wmi_p2p_capabilities_event *) datap;
dlen = le16_to_cpu(ev->len);
ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_capab: len=%u\n", dlen);
return 0;
}
static int ath6kl_wmi_rx_action_event_rx(struct wmi *wmi, u8 *datap, int len,
struct ath6kl_vif *vif)
{
struct wmi_rx_action_event *ev;
u32 freq;
u16 dlen;
if (len < sizeof(*ev))
return -EINVAL;
ev = (struct wmi_rx_action_event *) datap;
freq = le32_to_cpu(ev->freq);
dlen = le16_to_cpu(ev->len);
if (datap + len < ev->data + dlen) {
ath6kl_err("invalid wmi_rx_action_event: len=%d dlen=%u\n",
len, dlen);
return -EINVAL;
}
ath6kl_dbg(ATH6KL_DBG_WMI, "rx_action: len=%u freq=%u\n", dlen, freq);
cfg80211_rx_mgmt(&vif->wdev, freq, 0, ev->data, dlen, 0);
return 0;
}
static int ath6kl_wmi_p2p_info_event_rx(u8 *datap, int len)
{
struct wmi_p2p_info_event *ev;
u32 flags;
u16 dlen;
if (len < sizeof(*ev))
return -EINVAL;
ev = (struct wmi_p2p_info_event *) datap;
flags = le32_to_cpu(ev->info_req_flags);
dlen = le16_to_cpu(ev->len);
ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: flags=%x len=%d\n", flags, dlen);
if (flags & P2P_FLAG_CAPABILITIES_REQ) {
struct wmi_p2p_capabilities *cap;
if (dlen < sizeof(*cap))
return -EINVAL;
cap = (struct wmi_p2p_capabilities *) ev->data;
ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: GO Power Save = %d\n",
cap->go_power_save);
}
if (flags & P2P_FLAG_MACADDR_REQ) {
struct wmi_p2p_macaddr *mac;
if (dlen < sizeof(*mac))
return -EINVAL;
mac = (struct wmi_p2p_macaddr *) ev->data;
ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: MAC Address = %pM\n",
mac->mac_addr);
}
if (flags & P2P_FLAG_HMODEL_REQ) {
struct wmi_p2p_hmodel *mod;
if (dlen < sizeof(*mod))
return -EINVAL;
mod = (struct wmi_p2p_hmodel *) ev->data;
ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: P2P Model = %d (%s)\n",
mod->p2p_model,
mod->p2p_model ? "host" : "firmware");
}
return 0;
}
static inline struct sk_buff *ath6kl_wmi_get_new_buf(u32 size)
{
struct sk_buff *skb;
skb = ath6kl_buf_alloc(size);
if (!skb)
return NULL;
skb_put(skb, size);
if (size)
memset(skb->data, 0, size);
return skb;
}
/* Send a "simple" wmi command -- one with no arguments */
static int ath6kl_wmi_simple_cmd(struct wmi *wmi, u8 if_idx,
enum wmi_cmd_id cmd_id)
{
struct sk_buff *skb;
int ret;
skb = ath6kl_wmi_get_new_buf(0);
if (!skb)
return -ENOMEM;
ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, cmd_id, NO_SYNC_WMIFLAG);
return ret;
}
static int ath6kl_wmi_ready_event_rx(struct wmi *wmi, u8 *datap, int len)
{
struct wmi_ready_event_2 *ev = (struct wmi_ready_event_2 *) datap;
if (len < sizeof(struct wmi_ready_event_2))
return -EINVAL;
ath6kl_ready_event(wmi->parent_dev, ev->mac_addr,
le32_to_cpu(ev->sw_version),
le32_to_cpu(ev->abi_version), ev->phy_cap);
return 0;
}
/*
* Mechanism to modify the roaming behavior in the firmware. The lower rssi
* at which the station has to roam can be passed with
* WMI_SET_LRSSI_SCAN_PARAMS. Subtract 96 from RSSI to get the signal level
* in dBm.
*/
int ath6kl_wmi_set_roam_lrssi_cmd(struct wmi *wmi, u8 lrssi)
{
struct sk_buff *skb;
struct roam_ctrl_cmd *cmd;
skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
if (!skb)
return -ENOMEM;
cmd = (struct roam_ctrl_cmd *) skb->data;
cmd->info.params.lrssi_scan_period = cpu_to_le16(DEF_LRSSI_SCAN_PERIOD);
cmd->info.params.lrssi_scan_threshold = a_cpu_to_sle16(lrssi +
DEF_SCAN_FOR_ROAM_INTVL);
cmd->info.params.lrssi_roam_threshold = a_cpu_to_sle16(lrssi);
cmd->info.params.roam_rssi_floor = DEF_LRSSI_ROAM_FLOOR;
cmd->roam_ctrl = WMI_SET_LRSSI_SCAN_PARAMS;
return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
NO_SYNC_WMIFLAG);
}
int ath6kl_wmi_force_roam_cmd(struct wmi *wmi, const u8 *bssid)
{
struct sk_buff *skb;
struct roam_ctrl_cmd *cmd;
skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
if (!skb)
return -ENOMEM;
cmd = (struct roam_ctrl_cmd *) skb->data;
memcpy(cmd->info.bssid, bssid, ETH_ALEN);
cmd->roam_ctrl = WMI_FORCE_ROAM;
ath6kl_dbg(ATH6KL_DBG_WMI, "force roam to %pM\n", bssid);
return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
NO_SYNC_WMIFLAG);
}
int ath6kl_wmi_ap_set_beacon_intvl_cmd(struct wmi *wmi, u8 if_idx,
u32 beacon_intvl)
{
struct sk_buff *skb;
struct set_beacon_int_cmd *cmd;
skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
if (!skb)
return -ENOMEM;
cmd = (struct set_beacon_int_cmd *) skb->data;
cmd->beacon_intvl = cpu_to_le32(beacon_intvl);
return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
WMI_SET_BEACON_INT_CMDID, NO_SYNC_WMIFLAG);
}
int ath6kl_wmi_ap_set_dtim_cmd(struct wmi *wmi, u8 if_idx, u32 dtim_period)
{
struct sk_buff *skb;
struct set_dtim_cmd *cmd;
skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
if (!skb)
return -ENOMEM;
cmd = (struct set_dtim_cmd *) skb->data;
cmd->dtim_period = cpu_to_le32(dtim_period);
return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
WMI_AP_SET_DTIM_CMDID, NO_SYNC_WMIFLAG);
}
int ath6kl_wmi_set_roam_mode_cmd(struct wmi *wmi, enum wmi_roam_mode mode)
{
struct sk_buff *skb;
struct roam_ctrl_cmd *cmd;
skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
if (!skb)
return -ENOMEM;
cmd = (struct roam_ctrl_cmd *) skb->data;
cmd->info.roam_mode = mode;
cmd->roam_ctrl = WMI_SET_ROAM_MODE;
ath6kl_dbg(ATH6KL_DBG_WMI, "set roam mode %d\n", mode);
return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
NO_SYNC_WMIFLAG);
}
static int ath6kl_wmi_connect_event_rx(struct wmi *wmi, u8 *datap, int len,
struct ath6kl_vif *vif)
{
struct wmi_connect_event *ev;
u8 *pie, *peie;
if (len < sizeof(struct wmi_connect_event))
return -EINVAL;
ev = (struct wmi_connect_event *) datap;
if (vif->nw_type == AP_NETWORK) {
/* AP mode start/STA connected event */
struct net_device *dev = vif->ndev;
if (memcmp(dev->dev_addr, ev->u.ap_bss.bssid, ETH_ALEN) == 0) {
ath6kl_dbg(ATH6KL_DBG_WMI,
"%s: freq %d bssid %pM (AP started)\n",
__func__, le16_to_cpu(ev->u.ap_bss.ch),
ev->u.ap_bss.bssid);
ath6kl_connect_ap_mode_bss(
vif, le16_to_cpu(ev->u.ap_bss.ch));
} else {
ath6kl_dbg(ATH6KL_DBG_WMI,
"%s: aid %u mac_addr %pM auth=%u keymgmt=%u cipher=%u apsd_info=%u (STA connected)\n",
__func__, ev->u.ap_sta.aid,
ev->u.ap_sta.mac_addr,
ev->u.ap_sta.auth,
ev->u.ap_sta.keymgmt,
le16_to_cpu(ev->u.ap_sta.cipher),
ev->u.ap_sta.apsd_info);
ath6kl_connect_ap_mode_sta(
vif, ev->u.ap_sta.aid, ev->u.ap_sta.mac_addr,
ev->u.ap_sta.keymgmt,
le16_to_cpu(ev->u.ap_sta.cipher),
ev->u.ap_sta.auth, ev->assoc_req_len,
ev->assoc_info + ev->beacon_ie_len,
ev->u.ap_sta.apsd_info);
}
return 0;
}
/* STA/IBSS mode connection event */
ath6kl_dbg(ATH6KL_DBG_WMI,
"wmi event connect freq %d bssid %pM listen_intvl %d beacon_intvl %d type %d\n",
le16_to_cpu(ev->u.sta.ch), ev->u.sta.bssid,
le16_to_cpu(ev->u.sta.listen_intvl),
le16_to_cpu(ev->u.sta.beacon_intvl),
le32_to_cpu(ev->u.sta.nw_type));
/* Start of assoc rsp IEs */
pie = ev->assoc_info + ev->beacon_ie_len +
ev->assoc_req_len + (sizeof(u16) * 3); /* capinfo, status, aid */
/* End of assoc rsp IEs */
peie = ev->assoc_info + ev->beacon_ie_len + ev->assoc_req_len +
ev->assoc_resp_len;
while (pie < peie) {
switch (*pie) {
case WLAN_EID_VENDOR_SPECIFIC:
if (pie[1] > 3 && pie[2] == 0x00 && pie[3] == 0x50 &&
pie[4] == 0xf2 && pie[5] == WMM_OUI_TYPE) {
/* WMM OUT (00:50:F2) */
if (pie[1] > 5 &&
pie[6] == WMM_PARAM_OUI_SUBTYPE)
wmi->is_wmm_enabled = true;
}
break;
}
if (wmi->is_wmm_enabled)
break;
pie += pie[1] + 2;
}
ath6kl_connect_event(vif, le16_to_cpu(ev->u.sta.ch),
ev->u.sta.bssid,
le16_to_cpu(ev->u.sta.listen_intvl),
le16_to_cpu(ev->u.sta.beacon_intvl),
le32_to_cpu(ev->u.sta.nw_type),
ev->beacon_ie_len, ev->assoc_req_len,
ev->assoc_resp_len, ev->assoc_info);
return 0;
}
static struct country_code_to_enum_rd *
ath6kl_regd_find_country(u16 countryCode)
{
int i;
for (i = 0; i < ARRAY_SIZE(allCountries); i++) {
if (allCountries[i].countryCode == countryCode)
return &allCountries[i];
}
return NULL;
}
static struct reg_dmn_pair_mapping *
ath6kl_get_regpair(u16 regdmn)
{
int i;
if (regdmn == NO_ENUMRD)
return NULL;
for (i = 0; i < ARRAY_SIZE(regDomainPairs); i++) {
if (regDomainPairs[i].reg_domain == regdmn)
return ®DomainPairs[i];
}
return NULL;
}
static struct country_code_to_enum_rd *
ath6kl_regd_find_country_by_rd(u16 regdmn)
{
int i;
for (i = 0; i < ARRAY_SIZE(allCountries); i++) {
if (allCountries[i].regDmnEnum == regdmn)
return &allCountries[i];
}
return NULL;
}
static void ath6kl_wmi_regdomain_event(struct wmi *wmi, u8 *datap, int len)
{
struct ath6kl_wmi_regdomain *ev;
struct country_code_to_enum_rd *country = NULL;
struct reg_dmn_pair_mapping *regpair = NULL;
char alpha2[2];
u32 reg_code;
ev = (struct ath6kl_wmi_regdomain *) datap;
reg_code = le32_to_cpu(ev->reg_code);
if ((reg_code >> ATH6KL_COUNTRY_RD_SHIFT) & COUNTRY_ERD_FLAG) {
country = ath6kl_regd_find_country((u16) reg_code);
} else if (!(((u16) reg_code & WORLD_SKU_MASK) == WORLD_SKU_PREFIX)) {
regpair = ath6kl_get_regpair((u16) reg_code);
country = ath6kl_regd_find_country_by_rd((u16) reg_code);