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path: root/drivers/net/wireless/wl12xx/wl1271_tx.c
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Diffstat (limited to 'drivers/net/wireless/wl12xx/wl1271_tx.c')
-rw-r--r--drivers/net/wireless/wl12xx/wl1271_tx.c76
1 files changed, 48 insertions, 28 deletions
diff --git a/drivers/net/wireless/wl12xx/wl1271_tx.c b/drivers/net/wireless/wl12xx/wl1271_tx.c
index ff221258b941..00af065c77c2 100644
--- a/drivers/net/wireless/wl12xx/wl1271_tx.c
+++ b/drivers/net/wireless/wl12xx/wl1271_tx.c
@@ -33,8 +33,7 @@
static int wl1271_tx_id(struct wl1271 *wl, struct sk_buff *skb)
{
int i;
-
- for (i = 0; i < FW_TX_CMPLT_BLOCK_SIZE; i++)
+ for (i = 0; i < ACX_TX_DESCRIPTORS; i++)
if (wl->tx_frames[i] == NULL) {
wl->tx_frames[i] = skb;
return i;
@@ -58,8 +57,8 @@ static int wl1271_tx_allocate(struct wl1271 *wl, struct sk_buff *skb, u32 extra)
/* approximate the number of blocks required for this packet
in the firmware */
/* FIXME: try to figure out what is done here and make it cleaner */
- total_blocks = (skb->len) >> TX_HW_BLOCK_SHIFT_DIV;
- excluded = (total_blocks << 2) + (skb->len & 0xff) + 34;
+ total_blocks = (total_len + 20) >> TX_HW_BLOCK_SHIFT_DIV;
+ excluded = (total_blocks << 2) + ((total_len + 20) & 0xff) + 34;
total_blocks += (excluded > 252) ? 2 : 1;
total_blocks += TX_HW_BLOCK_SPARE;
@@ -89,15 +88,25 @@ static int wl1271_tx_fill_hdr(struct wl1271 *wl, struct sk_buff *skb,
{
struct wl1271_tx_hw_descr *desc;
int pad;
+ u16 tx_attr;
desc = (struct wl1271_tx_hw_descr *) skb->data;
+ /* relocate space for security header */
+ if (extra) {
+ void *framestart = skb->data + sizeof(*desc);
+ u16 fc = *(u16 *)(framestart + extra);
+ int hdrlen = ieee80211_hdrlen(cpu_to_le16(fc));
+ memmove(framestart, framestart + extra, hdrlen);
+ }
+
/* configure packet life time */
- desc->start_time = jiffies_to_usecs(jiffies) - wl->time_offset;
- desc->life_time = TX_HW_MGMT_PKT_LIFETIME_TU;
+ desc->start_time = cpu_to_le32(jiffies_to_usecs(jiffies) -
+ wl->time_offset);
+ desc->life_time = cpu_to_le16(TX_HW_MGMT_PKT_LIFETIME_TU);
/* configure the tx attributes */
- desc->tx_attr = wl->session_counter << TX_HW_ATTR_OFST_SESSION_COUNTER;
+ tx_attr = wl->session_counter << TX_HW_ATTR_OFST_SESSION_COUNTER;
/* FIXME: do we know the packet priority? can we identify mgmt
packets, and use max prio for them at least? */
desc->tid = 0;
@@ -106,11 +115,13 @@ static int wl1271_tx_fill_hdr(struct wl1271 *wl, struct sk_buff *skb,
/* align the length (and store in terms of words) */
pad = WL1271_TX_ALIGN(skb->len);
- desc->length = pad >> 2;
+ desc->length = cpu_to_le16(pad >> 2);
/* calculate number of padding bytes */
pad = pad - skb->len;
- desc->tx_attr |= pad << TX_HW_ATTR_OFST_LAST_WORD_PAD;
+ tx_attr |= pad << TX_HW_ATTR_OFST_LAST_WORD_PAD;
+
+ desc->tx_attr = cpu_to_le16(tx_attr);
wl1271_debug(DEBUG_TX, "tx_fill_hdr: pad: %d", pad);
return 0;
@@ -147,11 +158,11 @@ static int wl1271_tx_send_packet(struct wl1271 *wl, struct sk_buff *skb,
len = WL1271_TX_ALIGN(skb->len);
/* perform a fixed address block write with the packet */
- wl1271_spi_reg_write(wl, WL1271_SLV_MEM_DATA, skb->data, len, true);
+ wl1271_spi_write(wl, WL1271_SLV_MEM_DATA, skb->data, len, true);
/* write packet new counter into the write access register */
wl->tx_packets_count++;
- wl1271_reg_write32(wl, WL1271_HOST_WR_ACCESS, wl->tx_packets_count);
+ wl1271_spi_write32(wl, WL1271_HOST_WR_ACCESS, wl->tx_packets_count);
desc = (struct wl1271_tx_hw_descr *) skb->data;
wl1271_debug(DEBUG_TX, "tx id %u skb 0x%p payload %u (%u words)",
@@ -254,14 +265,13 @@ out:
static void wl1271_tx_complete_packet(struct wl1271 *wl,
struct wl1271_tx_hw_res_descr *result)
{
-
struct ieee80211_tx_info *info;
struct sk_buff *skb;
- u32 header_len;
+ u16 seq;
int id = result->id;
/* check for id legality */
- if (id >= TX_HW_RESULT_QUEUE_LEN || wl->tx_frames[id] == NULL) {
+ if (id >= ACX_TX_DESCRIPTORS || wl->tx_frames[id] == NULL) {
wl1271_warning("TX result illegal id: %d", id);
return;
}
@@ -284,22 +294,32 @@ static void wl1271_tx_complete_packet(struct wl1271 *wl,
/* info->status.retry_count = result->ack_failures; */
wl->stats.retry_count += result->ack_failures;
- /* get header len */
+ /* update security sequence number */
+ seq = wl->tx_security_seq_16 +
+ (result->lsb_security_sequence_number -
+ wl->tx_security_last_seq);
+ wl->tx_security_last_seq = result->lsb_security_sequence_number;
+
+ if (seq < wl->tx_security_seq_16)
+ wl->tx_security_seq_32++;
+ wl->tx_security_seq_16 = seq;
+
+ /* remove private header from packet */
+ skb_pull(skb, sizeof(struct wl1271_tx_hw_descr));
+
+ /* remove TKIP header space if present */
if (info->control.hw_key &&
- info->control.hw_key->alg == ALG_TKIP)
- header_len = WL1271_TKIP_IV_SPACE +
- sizeof(struct wl1271_tx_hw_descr);
- else
- header_len = sizeof(struct wl1271_tx_hw_descr);
+ info->control.hw_key->alg == ALG_TKIP) {
+ int hdrlen = ieee80211_get_hdrlen_from_skb(skb);
+ memmove(skb->data + WL1271_TKIP_IV_SPACE, skb->data, hdrlen);
+ skb_pull(skb, WL1271_TKIP_IV_SPACE);
+ }
wl1271_debug(DEBUG_TX, "tx status id %u skb 0x%p failures %u rate 0x%x"
" status 0x%x",
result->id, skb, result->ack_failures,
result->rate_class_index, result->status);
- /* remove private header from packet */
- skb_pull(skb, header_len);
-
/* return the packet to the stack */
ieee80211_tx_status(wl->hw, skb);
wl->tx_frames[result->id] = NULL;
@@ -315,8 +335,8 @@ void wl1271_tx_complete(struct wl1271 *wl, u32 count)
wl1271_debug(DEBUG_TX, "tx_complete received, packets: %d", count);
/* read the tx results from the chipset */
- wl1271_spi_mem_read(wl, memmap->tx_result,
- wl->tx_res_if, sizeof(*wl->tx_res_if));
+ wl1271_spi_read(wl, le32_to_cpu(memmap->tx_result),
+ wl->tx_res_if, sizeof(*wl->tx_res_if), false);
/* verify that the result buffer is not getting overrun */
if (count > TX_HW_RESULT_QUEUE_LEN) {
@@ -337,10 +357,10 @@ void wl1271_tx_complete(struct wl1271 *wl, u32 count)
}
/* write host counter to chipset (to ack) */
- wl1271_mem_write32(wl, memmap->tx_result +
+ wl1271_spi_write32(wl, le32_to_cpu(memmap->tx_result) +
offsetof(struct wl1271_tx_hw_res_if,
tx_result_host_counter),
- wl->tx_res_if->tx_result_fw_counter);
+ le32_to_cpu(wl->tx_res_if->tx_result_fw_counter));
}
/* caller must hold wl->mutex */
@@ -364,7 +384,7 @@ void wl1271_tx_flush(struct wl1271 *wl)
ieee80211_tx_status(wl->hw, skb);
}
- for (i = 0; i < FW_TX_CMPLT_BLOCK_SIZE; i++)
+ for (i = 0; i < ACX_TX_DESCRIPTORS; i++)
if (wl->tx_frames[i] != NULL) {
skb = wl->tx_frames[i];
info = IEEE80211_SKB_CB(skb);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-28 15:46:29 +0000