xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ath10k: add support for firmware newer than 636

Browse Source 
The mgmt_rx event structure has been expanded.
Since the structure header is expanded the payload
(i.e. mgmt frame) is shifted by a few bytes. This
needs to be taken into account in order to support
both old and new firmware.

This introduces a fw_features to keep track of any
FW-related ABI/behaviour changes.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Michal Kazior
2013-08-09 10:13:33 +02:00
committed by Kalle Valo
parent 68c8a9b22e
commit 0d9b0438b6
3 changed files with 47 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
drivers/net/wireless/ath/ath10k/wmi.c
View File

@@ -316,7 +316,9 @@ static inline u8 get_rate_idx(u32 rate, enum ieee80211_band band)
static int ath10k_wmi_event_mgmt_rx(struct ath10k *ar, struct sk_buff *skb)
{
struct wmi_mgmt_rx_event *event = (struct wmi_mgmt_rx_event *)skb->data;
struct wmi_mgmt_rx_event_v1 *ev_v1;
struct wmi_mgmt_rx_event_v2 *ev_v2;
struct wmi_mgmt_rx_hdr_v1 *ev_hdr;
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
struct ieee80211_hdr *hdr;
u32 rx_status;
@@ -326,13 +328,24 @@ static int ath10k_wmi_event_mgmt_rx(struct ath10k *ar, struct sk_buff *skb)
u32 rate;
u32 buf_len;
u16 fc;
int pull_len;
channel = __le32_to_cpu(event->hdr.channel);
buf_len = __le32_to_cpu(event->hdr.buf_len);
rx_status = __le32_to_cpu(event->hdr.status);
snr = __le32_to_cpu(event->hdr.snr);
phy_mode = __le32_to_cpu(event->hdr.phy_mode);
rate = __le32_to_cpu(event->hdr.rate);
if (test_bit(ATH10K_FW_FEATURE_EXT_WMI_MGMT_RX, ar->fw_features)) {
ev_v2 = (struct wmi_mgmt_rx_event_v2 *)skb->data;
ev_hdr = &ev_v2->hdr.v1;
pull_len = sizeof(*ev_v2);
} else {
ev_v1 = (struct wmi_mgmt_rx_event_v1 *)skb->data;
ev_hdr = &ev_v1->hdr;
pull_len = sizeof(*ev_v1);
}
channel = __le32_to_cpu(ev_hdr->channel);
buf_len = __le32_to_cpu(ev_hdr->buf_len);
rx_status = __le32_to_cpu(ev_hdr->status);
snr = __le32_to_cpu(ev_hdr->snr);
phy_mode = __le32_to_cpu(ev_hdr->phy_mode);
rate = __le32_to_cpu(ev_hdr->rate);
memset(status, 0, sizeof(*status));
@@ -359,7 +372,7 @@ static int ath10k_wmi_event_mgmt_rx(struct ath10k *ar, struct sk_buff *skb)
status->signal = snr + ATH10K_DEFAULT_NOISE_FLOOR;
status->rate_idx = get_rate_idx(rate, status->band);
skb_pull(skb, sizeof(event->hdr));
skb_pull(skb, pull_len);
hdr = (struct ieee80211_hdr *)skb->data;
fc = le16_to_cpu(hdr->frame_control);
@@ -944,6 +957,9 @@ static void ath10k_wmi_service_ready_event_rx(struct ath10k *ar,
ar->phy_capability = __le32_to_cpu(ev->phy_capability);
ar->num_rf_chains = __le32_to_cpu(ev->num_rf_chains);
if (ar->fw_version_build > 636)
set_bit(ATH10K_FW_FEATURE_EXT_WMI_MGMT_RX, ar->fw_features);
if (ar->num_rf_chains > WMI_MAX_SPATIAL_STREAM) {
ath10k_warn("hardware advertises support for more spatial streams than it should (%d > %d)\n",
ar->num_rf_chains, WMI_MAX_SPATIAL_STREAM);