diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-5000.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-5000.c | 253 |
1 files changed, 12 insertions, 241 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index 8aa382e370f..7e278956ec3 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -358,34 +358,6 @@ restart: queue_work(priv->workqueue, &priv->restart); } -static void iwl5000_set_wr_ptrs(struct iwl_priv *priv, - int txq_id, u32 index) -{ - iwl_write_direct32(priv, HBUS_TARG_WRPTR, - (index & 0xff) | (txq_id << 8)); - iwl_write_prph(priv, IWL50_SCD_QUEUE_RDPTR(txq_id), index); -} - -static void iwl5000_tx_queue_set_status(struct iwl_priv *priv, - struct iwl_tx_queue *txq, - int tx_fifo_id, int scd_retry) -{ - int txq_id = txq->q.id; - int active = test_bit(txq_id, &priv->txq_ctx_active_msk) ? 1 : 0; - - iwl_write_prph(priv, IWL50_SCD_QUEUE_STATUS_BITS(txq_id), - (active << IWL50_SCD_QUEUE_STTS_REG_POS_ACTIVE) | - (tx_fifo_id << IWL50_SCD_QUEUE_STTS_REG_POS_TXF) | - (1 << IWL50_SCD_QUEUE_STTS_REG_POS_WSL) | - IWL50_SCD_QUEUE_STTS_REG_MSK); - - txq->sched_retry = scd_retry; - - IWL_DEBUG_INFO(priv, "%s %s Queue %d on FIFO %d\n", - active ? "Activate" : "Deactivate", - scd_retry ? "BA" : "AC/CMD", txq_id, tx_fifo_id); -} - int iwl5000_alive_notify(struct iwl_priv *priv) { u32 a; @@ -448,7 +420,7 @@ int iwl5000_alive_notify(struct iwl_priv *priv) /* Activate all Tx DMA/FIFO channels */ priv->cfg->ops->lib->txq_set_sched(priv, IWL_MASK(0, 7)); - iwl5000_set_wr_ptrs(priv, IWL_CMD_QUEUE_NUM, 0); + iwlagn_set_wr_ptrs(priv, IWL_CMD_QUEUE_NUM, 0); /* make sure all queue are not stopped */ memset(&priv->queue_stopped[0], 0, sizeof(priv->queue_stopped)); @@ -468,7 +440,7 @@ int iwl5000_alive_notify(struct iwl_priv *priv) if (ac == IWL_TX_FIFO_UNUSED) continue; - iwl5000_tx_queue_set_status(priv, &priv->txq[i], ac, 0); + iwlagn_tx_queue_set_status(priv, &priv->txq[i], ac, 0); } spin_unlock_irqrestore(&priv->lock, flags); @@ -539,207 +511,6 @@ int iwl5000_hw_set_hw_params(struct iwl_priv *priv) return 0; } -/** - * iwl5000_txq_update_byte_cnt_tbl - Set up entry in Tx byte-count array - */ -void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv, - struct iwl_tx_queue *txq, - u16 byte_cnt) -{ - struct iwl5000_scd_bc_tbl *scd_bc_tbl = priv->scd_bc_tbls.addr; - int write_ptr = txq->q.write_ptr; - int txq_id = txq->q.id; - u8 sec_ctl = 0; - u8 sta_id = 0; - u16 len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE; - __le16 bc_ent; - - WARN_ON(len > 0xFFF || write_ptr >= TFD_QUEUE_SIZE_MAX); - - if (txq_id != IWL_CMD_QUEUE_NUM) { - sta_id = txq->cmd[txq->q.write_ptr]->cmd.tx.sta_id; - sec_ctl = txq->cmd[txq->q.write_ptr]->cmd.tx.sec_ctl; - - switch (sec_ctl & TX_CMD_SEC_MSK) { - case TX_CMD_SEC_CCM: - len += CCMP_MIC_LEN; - break; - case TX_CMD_SEC_TKIP: - len += TKIP_ICV_LEN; - break; - case TX_CMD_SEC_WEP: - len += WEP_IV_LEN + WEP_ICV_LEN; - break; - } - } - - bc_ent = cpu_to_le16((len & 0xFFF) | (sta_id << 12)); - - scd_bc_tbl[txq_id].tfd_offset[write_ptr] = bc_ent; - - if (write_ptr < TFD_QUEUE_SIZE_BC_DUP) - scd_bc_tbl[txq_id]. - tfd_offset[TFD_QUEUE_SIZE_MAX + write_ptr] = bc_ent; -} - -void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv, - struct iwl_tx_queue *txq) -{ - struct iwl5000_scd_bc_tbl *scd_bc_tbl = priv->scd_bc_tbls.addr; - int txq_id = txq->q.id; - int read_ptr = txq->q.read_ptr; - u8 sta_id = 0; - __le16 bc_ent; - - WARN_ON(read_ptr >= TFD_QUEUE_SIZE_MAX); - - if (txq_id != IWL_CMD_QUEUE_NUM) - sta_id = txq->cmd[read_ptr]->cmd.tx.sta_id; - - bc_ent = cpu_to_le16(1 | (sta_id << 12)); - scd_bc_tbl[txq_id].tfd_offset[read_ptr] = bc_ent; - - if (read_ptr < TFD_QUEUE_SIZE_BC_DUP) - scd_bc_tbl[txq_id]. - tfd_offset[TFD_QUEUE_SIZE_MAX + read_ptr] = bc_ent; -} - -static int iwl5000_tx_queue_set_q2ratid(struct iwl_priv *priv, u16 ra_tid, - u16 txq_id) -{ - u32 tbl_dw_addr; - u32 tbl_dw; - u16 scd_q2ratid; - - scd_q2ratid = ra_tid & IWL_SCD_QUEUE_RA_TID_MAP_RATID_MSK; - - tbl_dw_addr = priv->scd_base_addr + - IWL50_SCD_TRANSLATE_TBL_OFFSET_QUEUE(txq_id); - - tbl_dw = iwl_read_targ_mem(priv, tbl_dw_addr); - - if (txq_id & 0x1) - tbl_dw = (scd_q2ratid << 16) | (tbl_dw & 0x0000FFFF); - else - tbl_dw = scd_q2ratid | (tbl_dw & 0xFFFF0000); - - iwl_write_targ_mem(priv, tbl_dw_addr, tbl_dw); - - return 0; -} -static void iwl5000_tx_queue_stop_scheduler(struct iwl_priv *priv, u16 txq_id) -{ - /* Simply stop the queue, but don't change any configuration; - * the SCD_ACT_EN bit is the write-enable mask for the ACTIVE bit. */ - iwl_write_prph(priv, - IWL50_SCD_QUEUE_STATUS_BITS(txq_id), - (0 << IWL50_SCD_QUEUE_STTS_REG_POS_ACTIVE)| - (1 << IWL50_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN)); -} - -int iwl5000_txq_agg_enable(struct iwl_priv *priv, int txq_id, - int tx_fifo, int sta_id, int tid, u16 ssn_idx) -{ - unsigned long flags; - u16 ra_tid; - - if ((IWL50_FIRST_AMPDU_QUEUE > txq_id) || - (IWL50_FIRST_AMPDU_QUEUE + priv->cfg->num_of_ampdu_queues - <= txq_id)) { - IWL_WARN(priv, - "queue number out of range: %d, must be %d to %d\n", - txq_id, IWL50_FIRST_AMPDU_QUEUE, - IWL50_FIRST_AMPDU_QUEUE + - priv->cfg->num_of_ampdu_queues - 1); - return -EINVAL; - } - - ra_tid = BUILD_RAxTID(sta_id, tid); - - /* Modify device's station table to Tx this TID */ - iwl_sta_tx_modify_enable_tid(priv, sta_id, tid); - - spin_lock_irqsave(&priv->lock, flags); - - /* Stop this Tx queue before configuring it */ - iwl5000_tx_queue_stop_scheduler(priv, txq_id); - - /* Map receiver-address / traffic-ID to this queue */ - iwl5000_tx_queue_set_q2ratid(priv, ra_tid, txq_id); - - /* Set this queue as a chain-building queue */ - iwl_set_bits_prph(priv, IWL50_SCD_QUEUECHAIN_SEL, (1<<txq_id)); - - /* enable aggregations for the queue */ - iwl_set_bits_prph(priv, IWL50_SCD_AGGR_SEL, (1<<txq_id)); - - /* Place first TFD at index corresponding to start sequence number. - * Assumes that ssn_idx is valid (!= 0xFFF) */ - priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff); - priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff); - iwl5000_set_wr_ptrs(priv, txq_id, ssn_idx); - - /* Set up Tx window size and frame limit for this queue */ - iwl_write_targ_mem(priv, priv->scd_base_addr + - IWL50_SCD_CONTEXT_QUEUE_OFFSET(txq_id) + - sizeof(u32), - ((SCD_WIN_SIZE << - IWL50_SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) & - IWL50_SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) | - ((SCD_FRAME_LIMIT << - IWL50_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) & - IWL50_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK)); - - iwl_set_bits_prph(priv, IWL50_SCD_INTERRUPT_MASK, (1 << txq_id)); - - /* Set up Status area in SRAM, map to Tx DMA/FIFO, activate the queue */ - iwl5000_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 1); - - spin_unlock_irqrestore(&priv->lock, flags); - - return 0; -} - -int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id, - u16 ssn_idx, u8 tx_fifo) -{ - if ((IWL50_FIRST_AMPDU_QUEUE > txq_id) || - (IWL50_FIRST_AMPDU_QUEUE + priv->cfg->num_of_ampdu_queues - <= txq_id)) { - IWL_ERR(priv, - "queue number out of range: %d, must be %d to %d\n", - txq_id, IWL50_FIRST_AMPDU_QUEUE, - IWL50_FIRST_AMPDU_QUEUE + - priv->cfg->num_of_ampdu_queues - 1); - return -EINVAL; - } - - iwl5000_tx_queue_stop_scheduler(priv, txq_id); - - iwl_clear_bits_prph(priv, IWL50_SCD_AGGR_SEL, (1 << txq_id)); - - priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff); - priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff); - /* supposes that ssn_idx is valid (!= 0xFFF) */ - iwl5000_set_wr_ptrs(priv, txq_id, ssn_idx); - - iwl_clear_bits_prph(priv, IWL50_SCD_INTERRUPT_MASK, (1 << txq_id)); - iwl_txq_ctx_deactivate(priv, txq_id); - iwl5000_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 0); - - return 0; -} - -/* - * Activate/Deactivate Tx DMA/FIFO channels according tx fifos mask - * must be called under priv->lock and mac access - */ -void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask) -{ - iwl_write_prph(priv, IWL50_SCD_TXFACT, mask); -} - - static inline u32 iwl5000_get_scd_ssn(struct iwl5000_tx_resp *tx_resp) { return le32_to_cpup((__le32 *)&tx_resp->status + @@ -1063,11 +834,11 @@ static int iwl5000_hw_channel_switch(struct iwl_priv *priv, u16 channel) struct iwl_lib_ops iwl5000_lib = { .set_hw_params = iwl5000_hw_set_hw_params, - .txq_update_byte_cnt_tbl = iwl5000_txq_update_byte_cnt_tbl, - .txq_inval_byte_cnt_tbl = iwl5000_txq_inval_byte_cnt_tbl, - .txq_set_sched = iwl5000_txq_set_sched, - .txq_agg_enable = iwl5000_txq_agg_enable, - .txq_agg_disable = iwl5000_txq_agg_disable, + .txq_update_byte_cnt_tbl = iwlagn_txq_update_byte_cnt_tbl, + .txq_inval_byte_cnt_tbl = iwlagn_txq_inval_byte_cnt_tbl, + .txq_set_sched = iwlagn_txq_set_sched, + .txq_agg_enable = iwlagn_txq_agg_enable, + .txq_agg_disable = iwlagn_txq_agg_disable, .txq_attach_buf_to_tfd = iwl_hw_txq_attach_buf_to_tfd, .txq_free_tfd = iwl_hw_txq_free_tfd, .txq_init = iwl_hw_tx_queue_init, @@ -1121,11 +892,11 @@ struct iwl_lib_ops iwl5000_lib = { static struct iwl_lib_ops iwl5150_lib = { .set_hw_params = iwl5000_hw_set_hw_params, - .txq_update_byte_cnt_tbl = iwl5000_txq_update_byte_cnt_tbl, - .txq_inval_byte_cnt_tbl = iwl5000_txq_inval_byte_cnt_tbl, - .txq_set_sched = iwl5000_txq_set_sched, - .txq_agg_enable = iwl5000_txq_agg_enable, - .txq_agg_disable = iwl5000_txq_agg_disable, + .txq_update_byte_cnt_tbl = iwlagn_txq_update_byte_cnt_tbl, + .txq_inval_byte_cnt_tbl = iwlagn_txq_inval_byte_cnt_tbl, + .txq_set_sched = iwlagn_txq_set_sched, + .txq_agg_enable = iwlagn_txq_agg_enable, + .txq_agg_disable = iwlagn_txq_agg_disable, .txq_attach_buf_to_tfd = iwl_hw_txq_attach_buf_to_tfd, .txq_free_tfd = iwl_hw_txq_free_tfd, .txq_init = iwl_hw_tx_queue_init, |