iwlwifi: handle shared memory Rx index access

This patch splits ucode's and driver's shared memory Rx index access to
match 4965 and 5000 offsets.

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index feffcafe1495..d6b91f7e0b1b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -362,6 +362,8 @@ static int iwl5000_alloc_shared_mem(struct iwl_priv *priv)
 
         memset(priv->shared_virt, 0, sizeof(struct iwl5000_shared));
 
+        priv->rb_closed_offset = offsetof(struct iwl5000_shared, rb_closed);
+
         return 0;
 }
 
@@ -374,6 +376,12 @@ static void iwl5000_free_shared_mem(struct iwl_priv *priv)
                                     priv->shared_phys);
 }
 
+static int iwl5000_shared_mem_rx_idx(struct iwl_priv *priv)
+{
+        struct iwl5000_shared *s = priv->shared_virt;
+        return le32_to_cpu(s->rb_closed) & 0xFFF;
+}
+
 /**
  * iwl5000_txq_update_byte_cnt_tbl - Set up entry in Tx byte-count array
  */
@@ -466,6 +474,7 @@ static struct iwl_lib_ops iwl5000_lib = {
         .set_hw_params = iwl5000_hw_set_hw_params,
         .alloc_shared_mem = iwl5000_alloc_shared_mem,
         .free_shared_mem = iwl5000_free_shared_mem,
+        .shared_mem_rx_idx = iwl5000_shared_mem_rx_idx,
         .txq_update_byte_cnt_tbl = iwl5000_txq_update_byte_cnt_tbl,
         .disable_tx_fifo = iwl5000_disable_tx_fifo,
         .apm_ops = {