diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2013-01-08 11:25:44 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-01-16 14:19:54 +0100 |
| commit | ddaf5a5b300b8f9d3591b509fd8bedab1c9887be (patch) | |
| tree | c78ebe39d33bf334e120d08c3206a5b048f8fcea /drivers/net/wireless/iwlwifi/pcie/tx.c | |
| parent | 22dc3c9561825a7c2cd18d01b01358c2141a8e16 (diff) | |
iwlwifi: enable communication with WoWLAN firmware
On resuming, the opmode may have to be able to talk
to the WoWLAN/D3 firmware in order to query it about
its status and wakeup reasons. To do that, the opmode
has to call the new d3_resume() transport API which
will set up the device for command communcation.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/pcie/tx.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/pcie/tx.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c index d3c4e8f017e..fd3280fca44 100644 --- a/drivers/net/wireless/iwlwifi/pcie/tx.c +++ b/drivers/net/wireless/iwlwifi/pcie/tx.c @@ -692,6 +692,29 @@ void iwl_pcie_tx_start(struct iwl_trans *trans, u32 scd_base_addr) APMG_PCIDEV_STT_VAL_L1_ACT_DIS); } +void iwl_trans_pcie_tx_reset(struct iwl_trans *trans) +{ + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); + int txq_id; + + for (txq_id = 0; txq_id < trans->cfg->base_params->num_of_queues; + txq_id++) { + struct iwl_txq *txq = &trans_pcie->txq[txq_id]; + + iwl_write_direct32(trans, FH_MEM_CBBC_QUEUE(txq_id), + txq->q.dma_addr >> 8); + iwl_pcie_txq_unmap(trans, txq_id); + txq->q.read_ptr = 0; + txq->q.write_ptr = 0; + } + + /* Tell NIC where to find the "keep warm" buffer */ + iwl_write_direct32(trans, FH_KW_MEM_ADDR_REG, + trans_pcie->kw.dma >> 4); + + iwl_pcie_tx_start(trans, trans_pcie->scd_base_addr); +} + /* * iwl_pcie_tx_stop - Stop all Tx DMA channels */ |