2011-07-11 21:35:34 +07:00
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/******************************************************************************
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*
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* Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
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*
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* Portions of this file are derived from the ipw3945 project, as well
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* as portions of the ieee80211 subsystem header files.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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* The full GNU General Public License is included in this distribution in the
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* file called LICENSE.
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*
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* Contact Information:
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* Intel Linux Wireless <ilw@linux.intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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*****************************************************************************/
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#ifndef __iwl_trans_int_pcie_h__
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#define __iwl_trans_int_pcie_h__
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/*This file includes the declaration that are internal to the
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* trans_pcie layer */
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2011-08-26 13:10:59 +07:00
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/**
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* struct isr_statistics - interrupt statistics
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*
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*/
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struct isr_statistics {
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u32 hw;
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u32 sw;
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u32 err_code;
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u32 sch;
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u32 alive;
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u32 rfkill;
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u32 ctkill;
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u32 wakeup;
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u32 rx;
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u32 tx;
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u32 unhandled;
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};
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2011-08-26 13:10:51 +07:00
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/**
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* struct iwl_rx_queue - Rx queue
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* @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
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* @bd_dma: bus address of buffer of receive buffer descriptors (rbd)
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* @pool:
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* @queue:
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* @read: Shared index to newest available Rx buffer
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* @write: Shared index to oldest written Rx packet
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* @free_count: Number of pre-allocated buffers in rx_free
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* @write_actual:
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* @rx_free: list of free SKBs for use
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* @rx_used: List of Rx buffers with no SKB
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* @need_update: flag to indicate we need to update read/write index
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* @rb_stts: driver's pointer to receive buffer status
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* @rb_stts_dma: bus address of receive buffer status
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* @lock:
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*
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* NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
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*/
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struct iwl_rx_queue {
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__le32 *bd;
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dma_addr_t bd_dma;
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struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
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struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
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u32 read;
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u32 write;
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u32 free_count;
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u32 write_actual;
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struct list_head rx_free;
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struct list_head rx_used;
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int need_update;
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struct iwl_rb_status *rb_stts;
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dma_addr_t rb_stts_dma;
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spinlock_t lock;
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};
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iwlagn: bus layer chooses its transport layer
Remove iwl_transport_register which was a W/A. The bus layer knows what
transport to use. So now, the bus layer gives the upper layer a pointer to the
iwl_trans_ops struct that it wants to use. The upper layer then, allocates the
desired transport layer using iwl_trans_ops->alloc function.
As a result of this, priv->trans, no longer exists, priv holds a pointer to
iwl_shared, which holds a pointer to iwl_trans. This required to change all the
calls to the transport layer from upper layer. While we were at it, trans_X
inlines have been renamed to iwl_trans_X to avoid confusions, which of course
required to rename the functions inside the transport layer because of
conflicts in names. So the static API functions inside the transport layer
implementation have been renamed to iwl_trans_pcie_X.
Until now, the IRQ / Tasklet were initialized in iwl_transport_layer. This is
confusing since the registration doesn't mean to request IRQ, so I added a
handler for that.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-26 13:10:48 +07:00
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/**
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* struct iwl_trans_pcie - PCIe transport specific data
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2011-08-26 13:10:51 +07:00
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* @rxq: all the RX queue data
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* @rx_replenish: work that will be called when buffers need to be allocated
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* @trans: pointer to the generic transport area
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iwlagn: bus layer chooses its transport layer
Remove iwl_transport_register which was a W/A. The bus layer knows what
transport to use. So now, the bus layer gives the upper layer a pointer to the
iwl_trans_ops struct that it wants to use. The upper layer then, allocates the
desired transport layer using iwl_trans_ops->alloc function.
As a result of this, priv->trans, no longer exists, priv holds a pointer to
iwl_shared, which holds a pointer to iwl_trans. This required to change all the
calls to the transport layer from upper layer. While we were at it, trans_X
inlines have been renamed to iwl_trans_X to avoid confusions, which of course
required to rename the functions inside the transport layer because of
conflicts in names. So the static API functions inside the transport layer
implementation have been renamed to iwl_trans_pcie_X.
Until now, the IRQ / Tasklet were initialized in iwl_transport_layer. This is
confusing since the registration doesn't mean to request IRQ, so I added a
handler for that.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-26 13:10:48 +07:00
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*/
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struct iwl_trans_pcie {
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2011-08-26 13:10:51 +07:00
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struct iwl_rx_queue rxq;
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struct work_struct rx_replenish;
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struct iwl_trans *trans;
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2011-08-26 13:10:53 +07:00
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/* INT ICT Table */
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__le32 *ict_tbl;
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void *ict_tbl_vir;
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dma_addr_t ict_tbl_dma;
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dma_addr_t aligned_ict_tbl_dma;
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int ict_index;
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u32 inta;
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bool use_ict;
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struct tasklet_struct irq_tasklet;
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2011-08-26 13:10:59 +07:00
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struct isr_statistics isr_stats;
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2011-08-26 13:10:53 +07:00
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u32 inta_mask;
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iwlagn: bus layer chooses its transport layer
Remove iwl_transport_register which was a W/A. The bus layer knows what
transport to use. So now, the bus layer gives the upper layer a pointer to the
iwl_trans_ops struct that it wants to use. The upper layer then, allocates the
desired transport layer using iwl_trans_ops->alloc function.
As a result of this, priv->trans, no longer exists, priv holds a pointer to
iwl_shared, which holds a pointer to iwl_trans. This required to change all the
calls to the transport layer from upper layer. While we were at it, trans_X
inlines have been renamed to iwl_trans_X to avoid confusions, which of course
required to rename the functions inside the transport layer because of
conflicts in names. So the static API functions inside the transport layer
implementation have been renamed to iwl_trans_pcie_X.
Until now, the IRQ / Tasklet were initialized in iwl_transport_layer. This is
confusing since the registration doesn't mean to request IRQ, so I added a
handler for that.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-26 13:10:48 +07:00
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};
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2011-08-26 13:10:51 +07:00
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#define IWL_TRANS_GET_PCIE_TRANS(_iwl_trans) \
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((struct iwl_trans_pcie *) ((_iwl_trans)->trans_specific))
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2011-07-11 21:39:46 +07:00
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/*****************************************************
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* RX
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******************************************************/
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2011-07-11 21:35:34 +07:00
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void iwl_bg_rx_replenish(struct work_struct *data);
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2011-08-26 13:10:53 +07:00
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void iwl_irq_tasklet(struct iwl_trans *trans);
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2011-08-26 13:10:51 +07:00
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void iwlagn_rx_replenish(struct iwl_trans *trans);
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void iwl_rx_queue_update_write_ptr(struct iwl_trans *trans,
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2011-07-11 21:35:34 +07:00
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struct iwl_rx_queue *q);
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2011-07-11 21:44:57 +07:00
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/*****************************************************
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* ICT
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******************************************************/
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int iwl_reset_ict(struct iwl_priv *priv);
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2011-08-26 13:10:53 +07:00
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void iwl_disable_ict(struct iwl_trans *trans);
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int iwl_alloc_isr_ict(struct iwl_trans *trans);
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void iwl_free_isr_ict(struct iwl_trans *trans);
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2011-07-11 21:44:57 +07:00
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irqreturn_t iwl_isr_ict(int irq, void *data);
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2011-07-11 21:39:46 +07:00
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/*****************************************************
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* TX / HCMD
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******************************************************/
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void iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
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int iwlagn_txq_attach_buf_to_tfd(struct iwl_priv *priv,
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struct iwl_tx_queue *txq,
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dma_addr_t addr, u16 len, u8 reset);
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int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
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int count, int slots_num, u32 id);
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iwlagn: bus layer chooses its transport layer
Remove iwl_transport_register which was a W/A. The bus layer knows what
transport to use. So now, the bus layer gives the upper layer a pointer to the
iwl_trans_ops struct that it wants to use. The upper layer then, allocates the
desired transport layer using iwl_trans_ops->alloc function.
As a result of this, priv->trans, no longer exists, priv holds a pointer to
iwl_shared, which holds a pointer to iwl_trans. This required to change all the
calls to the transport layer from upper layer. While we were at it, trans_X
inlines have been renamed to iwl_trans_X to avoid confusions, which of course
required to rename the functions inside the transport layer because of
conflicts in names. So the static API functions inside the transport layer
implementation have been renamed to iwl_trans_pcie_X.
Until now, the IRQ / Tasklet were initialized in iwl_transport_layer. This is
confusing since the registration doesn't mean to request IRQ, so I added a
handler for that.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-26 13:10:48 +07:00
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int iwl_trans_pcie_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
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int __must_check iwl_trans_pcie_send_cmd_pdu(struct iwl_priv *priv, u8 id,
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u32 flags, u16 len, const void *data);
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2011-07-11 21:39:46 +07:00
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void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
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2011-07-10 14:47:01 +07:00
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void iwl_trans_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
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struct iwl_tx_queue *txq,
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u16 byte_cnt);
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iwlagn: bus layer chooses its transport layer
Remove iwl_transport_register which was a W/A. The bus layer knows what
transport to use. So now, the bus layer gives the upper layer a pointer to the
iwl_trans_ops struct that it wants to use. The upper layer then, allocates the
desired transport layer using iwl_trans_ops->alloc function.
As a result of this, priv->trans, no longer exists, priv holds a pointer to
iwl_shared, which holds a pointer to iwl_trans. This required to change all the
calls to the transport layer from upper layer. While we were at it, trans_X
inlines have been renamed to iwl_trans_X to avoid confusions, which of course
required to rename the functions inside the transport layer because of
conflicts in names. So the static API functions inside the transport layer
implementation have been renamed to iwl_trans_pcie_X.
Until now, the IRQ / Tasklet were initialized in iwl_transport_layer. This is
confusing since the registration doesn't mean to request IRQ, so I added a
handler for that.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-26 13:10:48 +07:00
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int iwl_trans_pcie_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
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2011-07-10 14:47:01 +07:00
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u16 ssn_idx, u8 tx_fifo);
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void iwl_trans_set_wr_ptrs(struct iwl_priv *priv,
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int txq_id, u32 index);
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void iwl_trans_tx_queue_set_status(struct iwl_priv *priv,
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struct iwl_tx_queue *txq,
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int tx_fifo_id, int scd_retry);
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iwlagn: bus layer chooses its transport layer
Remove iwl_transport_register which was a W/A. The bus layer knows what
transport to use. So now, the bus layer gives the upper layer a pointer to the
iwl_trans_ops struct that it wants to use. The upper layer then, allocates the
desired transport layer using iwl_trans_ops->alloc function.
As a result of this, priv->trans, no longer exists, priv holds a pointer to
iwl_shared, which holds a pointer to iwl_trans. This required to change all the
calls to the transport layer from upper layer. While we were at it, trans_X
inlines have been renamed to iwl_trans_X to avoid confusions, which of course
required to rename the functions inside the transport layer because of
conflicts in names. So the static API functions inside the transport layer
implementation have been renamed to iwl_trans_pcie_X.
Until now, the IRQ / Tasklet were initialized in iwl_transport_layer. This is
confusing since the registration doesn't mean to request IRQ, so I added a
handler for that.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-26 13:10:48 +07:00
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void iwl_trans_pcie_txq_agg_setup(struct iwl_priv *priv, int sta_id, int tid,
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2011-07-10 14:47:01 +07:00
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int frame_limit);
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2011-08-26 13:11:01 +07:00
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void iwlagn_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq,
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int index);
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void iwl_tx_queue_reclaim(struct iwl_trans *trans, int txq_id, int index,
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struct sk_buff_head *skbs);
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2011-07-11 21:39:46 +07:00
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2011-08-26 13:10:54 +07:00
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/*****************************************************
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* Error handling
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******************************************************/
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int iwl_dump_nic_event_log(struct iwl_priv *priv,
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bool full_log, char **buf, bool display);
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2011-08-26 13:10:53 +07:00
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static inline void iwl_disable_interrupts(struct iwl_trans *trans)
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{
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clear_bit(STATUS_INT_ENABLED, &trans->shrd->status);
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/* disable interrupts from uCode/NIC to host */
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iwl_write32(priv(trans), CSR_INT_MASK, 0x00000000);
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/* acknowledge/clear/reset any interrupts still pending
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* from uCode or flow handler (Rx/Tx DMA) */
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iwl_write32(priv(trans), CSR_INT, 0xffffffff);
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iwl_write32(priv(trans), CSR_FH_INT_STATUS, 0xffffffff);
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IWL_DEBUG_ISR(trans, "Disabled interrupts\n");
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}
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static inline void iwl_enable_interrupts(struct iwl_trans *trans)
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{
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struct iwl_trans_pcie *trans_pcie =
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IWL_TRANS_GET_PCIE_TRANS(trans);
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IWL_DEBUG_ISR(trans, "Enabling interrupts\n");
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set_bit(STATUS_INT_ENABLED, &trans->shrd->status);
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iwl_write32(priv(trans), CSR_INT_MASK, trans_pcie->inta_mask);
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}
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2011-07-11 21:35:34 +07:00
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#endif /* __iwl_trans_int_pcie_h__ */
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