b43: support new RX header, noticed to be used in 598.314+ fw

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

5 files changed, 58 insertions, 13 deletions

diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c
index 83cba22ac6e8..d0d9aee44a59 100644
--- a/drivers/net/wireless/b43/dma.c
+++ b/drivers/net/wireless/b43/dma.c
@@ -858,8 +858,17 @@ struct b43_dmaring *b43_setup_dmaring(struct b43_wldev *dev,
                 ring->current_slot = -1;
         } else {
                 if (ring->index == 0) {
-                        ring->rx_buffersize = B43_DMA0_RX_BUFFERSIZE;
-                        ring->frameoffset = B43_DMA0_RX_FRAMEOFFSET;
+                        switch (dev->fw.hdr_format) {
+                        case B43_FW_HDR_598:
+                                ring->rx_buffersize = B43_DMA0_RX_FW598_BUFSIZE;
+                                ring->frameoffset = B43_DMA0_RX_FW598_FO;
+                                break;
+                        case B43_FW_HDR_410:
+                        case B43_FW_HDR_351:
+                                ring->rx_buffersize = B43_DMA0_RX_FW351_BUFSIZE;
+                                ring->frameoffset = B43_DMA0_RX_FW351_FO;
+                                break;
+                        }
                 } else
                         B43_WARN_ON(1);
         }
diff --git a/drivers/net/wireless/b43/dma.h b/drivers/net/wireless/b43/dma.h
index cdf87094efe8..546d19cbf5d5 100644
--- a/drivers/net/wireless/b43/dma.h
+++ b/drivers/net/wireless/b43/dma.h
@@ -162,12 +162,15 @@ struct b43_dmadesc_generic {
 
 /* Misc DMA constants */
 #define B43_DMA_RINGMEMSIZE             PAGE_SIZE
-#define B43_DMA0_RX_FRAMEOFFSET         30
+/* Offset of frame with actual data */
+#define B43_DMA0_RX_FW598_FO            38
+#define B43_DMA0_RX_FW351_FO            30
 
 /* DMA engine tuning knobs */
 #define B43_TXRING_SLOTS                256
 #define B43_RXRING_SLOTS                64
-#define B43_DMA0_RX_BUFFERSIZE          (B43_DMA0_RX_FRAMEOFFSET + IEEE80211_MAX_FRAME_LEN)
+#define B43_DMA0_RX_FW598_BUFSIZE       (B43_DMA0_RX_FW598_FO + IEEE80211_MAX_FRAME_LEN)
+#define B43_DMA0_RX_FW351_BUFSIZE       (B43_DMA0_RX_FW351_FO + IEEE80211_MAX_FRAME_LEN)
 
 /* Pointer poison */
 #define B43_DMA_PTR_POISON              ((void *)ERR_PTR(-ENOMEM))
diff --git a/drivers/net/wireless/b43/pio.c b/drivers/net/wireless/b43/pio.c
index 6e4228c3ed1b..ce8a4bdc7e1d 100644
--- a/drivers/net/wireless/b43/pio.c
+++ b/drivers/net/wireless/b43/pio.c
@@ -676,7 +676,15 @@ data_ready:
                 goto rx_error;
         }
 
-        macstat = le32_to_cpu(rxhdr->mac_status);
+        switch (dev->fw.hdr_format) {
+        case B43_FW_HDR_598:
+                macstat = le32_to_cpu(rxhdr->format_598.mac_status);
+                break;
+        case B43_FW_HDR_410:
+        case B43_FW_HDR_351:
+                macstat = le32_to_cpu(rxhdr->format_351.mac_status);
+                break;
+        }
         if (macstat & B43_RX_MAC_FCSERR) {
                 if (!(q->dev->wl->filter_flags & FIF_FCSFAIL)) {
                         /* Drop frames with failed FCS. */
diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c
index b02170d6614a..5b8240935fa9 100644
--- a/drivers/net/wireless/b43/xmit.c
+++ b/drivers/net/wireless/b43/xmit.c
@@ -653,8 +653,9 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr)
         struct ieee80211_hdr *wlhdr;
         const struct b43_rxhdr_fw4 *rxhdr = _rxhdr;
         __le16 fctl;
-        u16 phystat0, phystat3, chanstat, mactime;
-        u32 macstat;
+        u16 phystat0, phystat3;
+        u16 uninitialized_var(chanstat), uninitialized_var(mactime);
+        u32 uninitialized_var(macstat);
         u16 chanid;
         u16 phytype;
         int padding;
@@ -664,9 +665,19 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr)
         /* Get metadata about the frame from the header. */
         phystat0 = le16_to_cpu(rxhdr->phy_status0);
         phystat3 = le16_to_cpu(rxhdr->phy_status3);
-        macstat = le32_to_cpu(rxhdr->mac_status);
-        mactime = le16_to_cpu(rxhdr->mac_time);
-        chanstat = le16_to_cpu(rxhdr->channel);
+        switch (dev->fw.hdr_format) {
+        case B43_FW_HDR_598:
+                macstat = le32_to_cpu(rxhdr->format_598.mac_status);
+                mactime = le16_to_cpu(rxhdr->format_598.mac_time);
+                chanstat = le16_to_cpu(rxhdr->format_598.channel);
+                break;
+        case B43_FW_HDR_410:
+        case B43_FW_HDR_351:
+                macstat = le32_to_cpu(rxhdr->format_351.mac_status);
+                mactime = le16_to_cpu(rxhdr->format_351.mac_time);
+                chanstat = le16_to_cpu(rxhdr->format_351.channel);
+                break;
+        }
         phytype = chanstat & B43_RX_CHAN_PHYTYPE;
 
         if (unlikely(macstat & B43_RX_MAC_FCSERR)) {
diff --git a/drivers/net/wireless/b43/xmit.h b/drivers/net/wireless/b43/xmit.h
index dccf7c1b20a3..f6e8bc436d5a 100644
--- a/drivers/net/wireless/b43/xmit.h
+++ b/drivers/net/wireless/b43/xmit.h
@@ -250,9 +250,23 @@ struct b43_rxhdr_fw4 {
         } __packed;
         __le16 phy_status2;     /* PHY RX Status 2 */
         __le16 phy_status3;     /* PHY RX Status 3 */
-        __le32 mac_status;      /* MAC RX status */
-        __le16 mac_time;
-        __le16 channel;
+        union {
+                /* Tested with 598.314, 644.1001 and 666.2 */
+                struct {
+                        __le16 phy_status4;     /* PHY RX Status 4 */
+                        __le16 phy_status5;     /* PHY RX Status 5 */
+                        __le32 mac_status;      /* MAC RX status */
+                        __le16 mac_time;
+                        __le16 channel;
+                } format_598 __packed;
+
+                /* Tested with 351.126, 410.2160, 478.104 and 508.* */
+                struct {
+                        __le32 mac_status;      /* MAC RX status */
+                        __le16 mac_time;
+                        __le16 channel;
+                } format_351 __packed;
+        } __packed;
 } __packed;
 
 /* PHY RX Status 0 */