wlcore/wl12xx: split Tx completion to immediate/delayed

One chip family employs immediate Tx completion, where knowledge of
completed packets is given as part of the FW status. Another is only
notified of Tx completion via the FW status, and has to read the
completion status of the packets from a different location.

Implement the wl12xx tx completion as a delayed Tx completion.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

5 files changed, 30 insertions, 3 deletions

diff --git a/drivers/net/wireless/ti/wl12xx/main.c b/drivers/net/wireless/ti/wl12xx/main.c
index 5f81aaf19d9..6b187d066c5 100644
--- a/drivers/net/wireless/ti/wl12xx/main.c
+++ b/drivers/net/wireless/ti/wl12xx/main.c
@@ -789,6 +789,14 @@ static u32 wl12xx_get_rx_packet_len(struct wl1271 *wl, void *rx_data,
         return data_len - sizeof(*desc) - desc->pad_len;
 }
 
+static void wl12xx_tx_delayed_compl(struct wl1271 *wl)
+{
+        if (wl->fw_status->tx_results_counter == (wl->tx_results_count & 0xff))
+                return;
+
+        wl1271_tx_complete(wl);
+}
+
 static bool wl12xx_mac_in_fuse(struct wl1271 *wl)
 {
         bool supported = false;
@@ -862,6 +870,8 @@ static struct wlcore_ops wl12xx_ops = {
         .set_tx_desc_data_len   = wl12xx_set_tx_desc_data_len,
         .get_rx_buf_align       = wl12xx_get_rx_buf_align,
         .get_rx_packet_len      = wl12xx_get_rx_packet_len,
+        .tx_immediate_compl     = NULL,
+        .tx_delayed_compl       = wl12xx_tx_delayed_compl,
         .get_pg_ver             = wl12xx_get_pg_ver,
         .get_mac                = wl12xx_get_mac,
 };
diff --git a/drivers/net/wireless/ti/wlcore/hw_ops.h b/drivers/net/wireless/ti/wlcore/hw_ops.h
index 22615a8f1a4..9fc64295293 100644
--- a/drivers/net/wireless/ti/wlcore/hw_ops.h
+++ b/drivers/net/wireless/ti/wlcore/hw_ops.h
@@ -81,4 +81,16 @@ wlcore_hw_get_rx_packet_len(struct wl1271 *wl, void *rx_data, u32 data_len)
         return wl->ops->get_rx_packet_len(wl, rx_data, data_len);
 }
 
+static inline void wlcore_hw_tx_delayed_compl(struct wl1271 *wl)
+{
+        if (wl->ops->tx_delayed_compl)
+                wl->ops->tx_delayed_compl(wl);
+}
+
+static inline void wlcore_hw_tx_immediate_compl(struct wl1271 *wl)
+{
+        if (wl->ops->tx_immediate_compl)
+                wl->ops->tx_immediate_compl(wl);
+}
+
 #endif
diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 3f558d5a43e..0392166c430 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -49,6 +49,7 @@
 #include "boot.h"
 #include "testmode.h"
 #include "scan.h"
+#include "hw_ops.h"
 
 #define WL1271_BOOT_RETRIES 3
 
@@ -933,6 +934,9 @@ static irqreturn_t wl1271_irq(int irq, void *cookie)
                 smp_mb__after_clear_bit();
 
                 wl12xx_fw_status(wl, wl->fw_status);
+
+                wlcore_hw_tx_immediate_compl(wl);
+
                 intr = le32_to_cpu(wl->fw_status->intr);
                 intr &= WL1271_INTR_MASK;
                 if (!intr) {
@@ -969,9 +973,7 @@ static irqreturn_t wl1271_irq(int irq, void *cookie)
                         }
 
                         /* check for tx results */
-                        if (wl->fw_status->tx_results_counter !=
-                            (wl->tx_results_count & 0xff))
-                                wl1271_tx_complete(wl);
+                        wlcore_hw_tx_delayed_compl(wl);
 
                         /* Make sure the deferred queues don't get too long */
                         defer_count = skb_queue_len(&wl->deferred_tx_queue) +
diff --git a/drivers/net/wireless/ti/wlcore/tx.c b/drivers/net/wireless/ti/wlcore/tx.c
index 1fabc482ca2..d1811b8b514 100644
--- a/drivers/net/wireless/ti/wlcore/tx.c
+++ b/drivers/net/wireless/ti/wlcore/tx.c
@@ -905,6 +905,7 @@ void wl1271_tx_complete(struct wl1271 *wl)
                 wl->tx_results_count++;
         }
 }
+EXPORT_SYMBOL(wl1271_tx_complete);
 
 void wl1271_tx_reset_link_queues(struct wl1271 *wl, u8 hlid)
 {
diff --git a/drivers/net/wireless/ti/wlcore/wlcore.h b/drivers/net/wireless/ti/wlcore/wlcore.h
index 664df3216bb..29b39f9b746 100644
--- a/drivers/net/wireless/ti/wlcore/wlcore.h
+++ b/drivers/net/wireless/ti/wlcore/wlcore.h
@@ -51,6 +51,8 @@ struct wlcore_ops {
         void (*prepare_read)(struct wl1271 *wl, u32 rx_desc, u32 len);
         u32 (*get_rx_packet_len)(struct wl1271 *wl, void *rx_data,
                                  u32 data_len);
+        void (*tx_delayed_compl)(struct wl1271 *wl);
+        void (*tx_immediate_compl)(struct wl1271 *wl);
         s8 (*get_pg_ver)(struct wl1271 *wl);
         void (*get_mac)(struct wl1271 *wl);
 };