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path: root/drivers/net/wireless/iwlwifi/iwl-rx.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-rx.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-rx.c45
1 files changed, 27 insertions, 18 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
index f436270ca39a..87a6fd84d4d2 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
@@ -134,28 +134,37 @@ void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, struct iwl_rx_queue *q
if (q->need_update == 0)
goto exit_unlock;
- /* If power-saving is in use, make sure device is awake */
- if (test_bit(STATUS_POWER_PMI, &priv->status)) {
- reg = iwl_read32(priv, CSR_UCODE_DRV_GP1);
+ if (priv->cfg->base_params->shadow_reg_enable) {
+ /* shadow register enabled */
+ /* Device expects a multiple of 8 */
+ q->write_actual = (q->write & ~0x7);
+ iwl_write32(priv, rx_wrt_ptr_reg, q->write_actual);
+ } else {
+ /* If power-saving is in use, make sure device is awake */
+ if (test_bit(STATUS_POWER_PMI, &priv->status)) {
+ reg = iwl_read32(priv, CSR_UCODE_DRV_GP1);
- if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
- IWL_DEBUG_INFO(priv, "Rx queue requesting wakeup, GP1 = 0x%x\n",
- reg);
- iwl_set_bit(priv, CSR_GP_CNTRL,
- CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
- goto exit_unlock;
- }
+ if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
+ IWL_DEBUG_INFO(priv,
+ "Rx queue requesting wakeup,"
+ " GP1 = 0x%x\n", reg);
+ iwl_set_bit(priv, CSR_GP_CNTRL,
+ CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+ goto exit_unlock;
+ }
- q->write_actual = (q->write & ~0x7);
- iwl_write_direct32(priv, rx_wrt_ptr_reg, q->write_actual);
+ q->write_actual = (q->write & ~0x7);
+ iwl_write_direct32(priv, rx_wrt_ptr_reg,
+ q->write_actual);
- /* Else device is assumed to be awake */
- } else {
- /* Device expects a multiple of 8 */
- q->write_actual = (q->write & ~0x7);
- iwl_write_direct32(priv, rx_wrt_ptr_reg, q->write_actual);
+ /* Else device is assumed to be awake */
+ } else {
+ /* Device expects a multiple of 8 */
+ q->write_actual = (q->write & ~0x7);
+ iwl_write_direct32(priv, rx_wrt_ptr_reg,
+ q->write_actual);
+ }
}
-
q->need_update = 0;
exit_unlock: