wl12xx: use 1 spare TX block instead of two

All the new firmware versions (>=6.1.3.50.58 for STA and >=6.2.0.0.47
for AP) use 1 spare TX block.  We still want to support older
firmwares that require 2 spare blocks, so added a quirk to handle the
difference.

Also implemented a generic way of setting quirks that depend on the
firmware revision.

Signed-off-by: Luciano Coelho <coelho@ti.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c
index 0b9d41f14b28..db7ab856363e 100644
--- a/drivers/net/wireless/wl12xx/main.c
+++ b/drivers/net/wireless/wl12xx/main.c
@@ -1040,6 +1040,24 @@ out:
         return ret;
 }
 
+static unsigned int wl1271_get_fw_ver_quirks(struct wl1271 *wl)
+{
+        unsigned int quirks = 0;
+        unsigned int *fw_ver = wl->chip.fw_ver;
+
+        /* Only for wl127x */
+        if ((fw_ver[FW_VER_CHIP] == FW_VER_CHIP_WL127X) &&
+            /* Check STA version */
+            (((fw_ver[FW_VER_IF_TYPE] == FW_VER_IF_TYPE_STA) &&
+              (fw_ver[FW_VER_MINOR] < FW_VER_MINOR_1_SPARE_STA_MIN)) ||
+             /* Check AP version */
+             ((fw_ver[FW_VER_IF_TYPE] == FW_VER_IF_TYPE_AP) &&
+              (fw_ver[FW_VER_MINOR] < FW_VER_MINOR_1_SPARE_AP_MIN))))
+                quirks |= WL12XX_QUIRK_USE_2_SPARE_BLOCKS;
+
+        return quirks;
+}
+
 int wl1271_plt_start(struct wl1271 *wl)
 {
         int retries = WL1271_BOOT_RETRIES;
@@ -1075,6 +1093,9 @@ int wl1271_plt_start(struct wl1271 *wl)
                 wl->state = WL1271_STATE_PLT;
                 wl1271_notice("firmware booted in PLT mode (%s)",
                               wl->chip.fw_ver_str);
+
+                /* Check if any quirks are needed with older fw versions */
+                wl->quirks |= wl1271_get_fw_ver_quirks(wl);
                 goto out;
 
 irq_disable:
@@ -1353,6 +1374,9 @@ power_off:
         strncpy(wiphy->fw_version, wl->chip.fw_ver_str,
                 sizeof(wiphy->fw_version));
 
+        /* Check if any quirks are needed with older fw versions */
+        wl->quirks |= wl1271_get_fw_ver_quirks(wl);
+
         /*
          * Now we know if 11a is supported (info from the NVS), so disable
          * 11a channels if not supported