2011-06-14 15:13:24 +08:00
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/******************************************************************************
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*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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2011-12-28 03:21:32 +08:00
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* Copyright(c) 2007 - 2012 Intel Corporation. All rights reserved.
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2011-06-14 15:13:24 +08:00
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*
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* This program is free software; you can redistribute it and/or modify
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* it 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
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
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* USA
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*
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* The full GNU General Public License is included in this distribution
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* in the file called LICENSE.GPL.
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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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* BSD LICENSE
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*
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2011-12-28 03:21:32 +08:00
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* Copyright(c) 2005 - 2012 Intel Corporation. All rights reserved.
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2011-06-14 15:13:24 +08:00
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*****************************************************************************/
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2011-07-11 13:51:04 +08:00
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#ifndef __iwl_trans_h__
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#define __iwl_trans_h__
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2011-07-11 22:39:46 +08:00
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2011-08-26 14:10:50 +08:00
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#include <linux/debugfs.h>
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2011-08-26 14:11:13 +08:00
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#include <linux/skbuff.h>
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#include "iwl-shared.h"
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#include "iwl-commands.h"
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2012-02-08 07:00:12 +08:00
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#include "iwl-ucode.h"
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2012-02-06 20:30:54 +08:00
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#include "iwl-debug.h"
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2011-08-26 14:10:50 +08:00
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2012-02-06 22:41:58 +08:00
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/**
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* DOC: Transport layer - what is it ?
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*
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* The tranport layer is the layer that deals with the HW directly. It provides
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* an abstraction of the underlying HW to the upper layer. The transport layer
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* doesn't provide any policy, algorithm or anything of this kind, but only
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* mechanisms to make the HW do something.It is not completely stateless but
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* close to it.
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* We will have an implementation for each different supported bus.
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*/
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/**
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* DOC: Life cycle of the transport layer
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*
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* The transport layer has a very precise life cycle.
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*
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* 1) A helper function is called during the module initialization and
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* registers the bus driver's ops with the transport's alloc function.
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* 2) Bus's probe calls to the transport layer's allocation functions.
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* Of course this function is bus specific.
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* 3) This allocation functions will spawn the upper layer which will
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* register mac80211.
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*
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* 4) At some point (i.e. mac80211's start call), the op_mode will call
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* the following sequence:
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* start_hw
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* start_fw
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*
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* 5) Then when finished (or reset):
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* stop_fw (a.k.a. stop device for the moment)
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* stop_hw
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*
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* 6) Eventually, the free function will be called.
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*/
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/**
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* DOC: API needed by the transport layer from the op_mode
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*
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* TODO
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*/
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2011-07-11 22:39:46 +08:00
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2011-07-11 13:51:04 +08:00
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struct iwl_priv;
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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 14:10:48 +08:00
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struct iwl_shared;
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2011-09-07 00:31:19 +08:00
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2012-02-06 22:41:58 +08:00
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/**
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* DOC: Host command section
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*
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* A host command is a commaned issued by the upper layer to the fw. There are
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* several versions of fw that have several APIs. The transport layer is
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* completely agnostic to these differences.
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* The transport does provide helper functionnality (i.e. SYNC / ASYNC mode),
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*/
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2011-09-07 00:31:19 +08:00
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#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
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#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
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#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
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2012-02-06 22:41:58 +08:00
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/**
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* enum CMD_MODE - how to send the host commands ?
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*
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* @CMD_SYNC: The caller will be stalled until the fw responds to the command
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* @CMD_ASYNC: Return right away and don't want for the response
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* @CMD_WANT_SKB: valid only with CMD_SYNC. The caller needs the buffer of the
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* response.
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* @CMD_ON_DEMAND: This command is sent by the test mode pipe.
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*/
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enum CMD_MODE {
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2011-09-07 00:31:19 +08:00
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CMD_SYNC = 0,
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CMD_ASYNC = BIT(0),
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CMD_WANT_SKB = BIT(1),
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CMD_ON_DEMAND = BIT(2),
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};
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#define DEF_CMD_PAYLOAD_SIZE 320
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/**
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* struct iwl_device_cmd
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*
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* For allocation of the command and tx queues, this establishes the overall
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* size of the largest command we send to uCode, except for commands that
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* aren't fully copied and use other TFD space.
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*/
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struct iwl_device_cmd {
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struct iwl_cmd_header hdr; /* uCode API */
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2011-09-21 06:37:24 +08:00
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u8 payload[DEF_CMD_PAYLOAD_SIZE];
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2011-09-07 00:31:19 +08:00
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} __packed;
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#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
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#define IWL_MAX_CMD_TFDS 2
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2012-02-06 22:41:58 +08:00
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/**
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* struct iwl_hcmd_dataflag - flag for each one of the chunks of the command
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*
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* IWL_HCMD_DFL_NOCOPY: By default, the command is copied to the host command's
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* ring. The transport layer doesn't map the command's buffer to DMA, but
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* rather copies it to an previously allocated DMA buffer. This flag tells
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* the transport layer not to copy the command, but to map the existing
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* buffer. This can save memcpy and is worth with very big comamnds.
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*/
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2011-09-07 00:31:19 +08:00
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enum iwl_hcmd_dataflag {
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IWL_HCMD_DFL_NOCOPY = BIT(0),
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};
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/**
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* struct iwl_host_cmd - Host command to the uCode
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2012-02-06 22:41:58 +08:00
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*
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2011-09-07 00:31:19 +08:00
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* @data: array of chunks that composes the data of the host command
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* @reply_page: pointer to the page that holds the response to the host command
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2011-09-21 06:37:23 +08:00
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* @handler_status: return value of the handler of the command
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* (put in setup_rx_handlers) - valid for SYNC mode only
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2012-02-06 22:41:58 +08:00
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* @flags: can be CMD_*
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2011-09-07 00:31:19 +08:00
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* @len: array of the lenths of the chunks in data
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2012-02-06 22:41:58 +08:00
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* @dataflags: IWL_HCMD_DFL_*
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2011-09-07 00:31:19 +08:00
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* @id: id of the host command
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*/
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struct iwl_host_cmd {
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const void *data[IWL_MAX_CMD_TFDS];
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unsigned long reply_page;
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2011-09-21 06:37:23 +08:00
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int handler_status;
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2011-09-07 00:31:19 +08:00
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u32 flags;
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u16 len[IWL_MAX_CMD_TFDS];
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u8 dataflags[IWL_MAX_CMD_TFDS];
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u8 id;
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};
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2011-07-11 13:51:04 +08:00
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/**
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* struct iwl_trans_ops - transport specific operations
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2012-02-06 22:41:58 +08:00
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*
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* All the handlers MUST be implemented
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*
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2012-01-08 19:22:16 +08:00
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* @start_hw: starts the HW- from that point on, the HW can send interrupts
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2012-02-06 22:41:58 +08:00
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* May sleep
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2012-01-08 19:37:59 +08:00
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* @stop_hw: stops the HW- from that point on, the HW will be in low power but
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* will still issue interrupt if the HW RF kill is triggered.
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2012-02-06 22:41:58 +08:00
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* May sleep
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2012-01-08 22:33:58 +08:00
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* @start_fw: allocates and inits all the resources for the transport
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2012-02-06 22:41:58 +08:00
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* layer. Also kick a fw image.
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* May sleep
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2012-01-02 22:10:08 +08:00
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* @fw_alive: called when the fw sends alive notification
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2012-02-06 22:41:58 +08:00
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* May sleep
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2011-08-26 14:11:24 +08:00
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* @wake_any_queue: wake all the queues of a specfic context IWL_RXON_CTX_*
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2011-07-11 13:51:04 +08:00
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* @stop_device:stops the whole device (embedded CPU put to reset)
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2012-02-06 22:41:58 +08:00
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* May sleep
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2011-07-11 13:51:04 +08:00
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* @send_cmd:send a host command
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2012-02-06 22:41:58 +08:00
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* May sleep only if CMD_SYNC is set
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2011-07-11 13:51:04 +08:00
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* @tx: send an skb
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2012-02-06 22:41:58 +08:00
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* Must be atomic
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2011-08-26 14:11:00 +08:00
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* @reclaim: free packet until ssn. Returns a list of freed packets.
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2012-02-06 22:41:58 +08:00
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* Must be atomic
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2011-08-26 14:11:25 +08:00
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* @tx_agg_alloc: allocate resources for a TX BA session
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2012-02-06 22:41:58 +08:00
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* May sleep
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2011-08-26 14:11:28 +08:00
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* @tx_agg_setup: setup a tx queue for AMPDU - will be called once the HW is
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2012-02-06 22:41:58 +08:00
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* ready and a successful ADDBA response has been received.
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* May sleep
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2011-08-26 14:11:27 +08:00
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* @tx_agg_disable: de-configure a Tx queue to send AMPDUs
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2012-02-06 22:41:58 +08:00
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* May sleep
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2011-07-11 13:51:04 +08:00
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* @free: release all the ressource for the transport layer itself such as
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2012-02-06 22:41:58 +08:00
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* irq, tasklet etc... From this point on, the device may not issue
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* any interrupt (incl. RFKILL).
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* May sleep
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2011-08-26 14:11:31 +08:00
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* @stop_queue: stop a specific queue
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2011-08-26 14:11:30 +08:00
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* @check_stuck_queue: check if a specific queue is stuck
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2011-08-26 14:11:29 +08:00
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* @wait_tx_queue_empty: wait until all tx queues are empty
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2012-02-06 22:41:58 +08:00
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* May sleep
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2011-08-26 14:10:50 +08:00
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* @dbgfs_register: add the dbgfs files under this directory. Files will be
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* automatically deleted.
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2011-08-26 14:10:52 +08:00
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* @suspend: stop the device unless WoWLAN is configured
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* @resume: resume activity of the device
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2012-01-03 19:48:07 +08:00
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* @write8: write a u8 to a register at offset ofs from the BAR
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* @write32: write a u32 to a register at offset ofs from the BAR
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* @read32: read a u32 register at offset ofs from the BAR
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2011-07-11 13:51:04 +08:00
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*/
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struct iwl_trans_ops {
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2012-01-08 19:22:16 +08:00
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int (*start_hw)(struct iwl_trans *iwl_trans);
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2012-01-08 19:37:59 +08:00
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void (*stop_hw)(struct iwl_trans *iwl_trans);
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2012-01-08 22:33:58 +08:00
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int (*start_fw)(struct iwl_trans *trans, struct fw_img *fw);
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2012-01-02 22:10:08 +08:00
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void (*fw_alive)(struct iwl_trans *trans);
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2011-08-26 14:11:06 +08:00
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void (*stop_device)(struct iwl_trans *trans);
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2011-07-11 13:51:04 +08:00
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2011-09-16 02:46:32 +08:00
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void (*wake_any_queue)(struct iwl_trans *trans,
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2011-11-10 22:55:24 +08:00
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enum iwl_rxon_context_id ctx,
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const char *msg);
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2011-08-26 14:11:24 +08:00
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2011-08-26 14:11:06 +08:00
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int (*send_cmd)(struct iwl_trans *trans, struct iwl_host_cmd *cmd);
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2011-07-11 13:51:04 +08:00
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2011-08-26 14:11:24 +08:00
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int (*tx)(struct iwl_trans *trans, struct sk_buff *skb,
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2011-09-16 02:46:32 +08:00
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struct iwl_device_cmd *dev_cmd, enum iwl_rxon_context_id ctx,
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2011-11-21 19:25:31 +08:00
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u8 sta_id, u8 tid);
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2011-11-21 19:25:31 +08:00
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int (*reclaim)(struct iwl_trans *trans, int sta_id, int tid,
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2011-08-26 14:11:26 +08:00
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int txq_id, int ssn, u32 status,
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struct sk_buff_head *skbs);
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2011-07-11 13:51:04 +08:00
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2011-08-26 14:11:27 +08:00
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int (*tx_agg_disable)(struct iwl_trans *trans,
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2011-11-21 19:25:31 +08:00
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int sta_id, int tid);
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2011-08-26 14:11:25 +08:00
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int (*tx_agg_alloc)(struct iwl_trans *trans,
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2011-11-21 19:25:31 +08:00
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int sta_id, int tid);
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2011-08-26 14:11:28 +08:00
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void (*tx_agg_setup)(struct iwl_trans *trans,
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enum iwl_rxon_context_id ctx, int sta_id, int tid,
|
2011-11-21 19:25:31 +08:00
|
|
|
int frame_limit, u16 ssn);
|
2011-07-11 13:51:04 +08:00
|
|
|
|
2011-08-26 14:11:06 +08:00
|
|
|
void (*free)(struct iwl_trans *trans);
|
2011-08-26 14:10:50 +08:00
|
|
|
|
2011-11-10 22:55:24 +08:00
|
|
|
void (*stop_queue)(struct iwl_trans *trans, int q, const char *msg);
|
2011-08-26 14:11:31 +08:00
|
|
|
|
2011-08-26 14:10:50 +08:00
|
|
|
int (*dbgfs_register)(struct iwl_trans *trans, struct dentry* dir);
|
2011-08-26 14:11:30 +08:00
|
|
|
int (*check_stuck_queue)(struct iwl_trans *trans, int q);
|
2011-08-26 14:11:29 +08:00
|
|
|
int (*wait_tx_queue_empty)(struct iwl_trans *trans);
|
2011-09-16 02:46:45 +08:00
|
|
|
#ifdef CONFIG_PM_SLEEP
|
2011-08-26 14:10:52 +08:00
|
|
|
int (*suspend)(struct iwl_trans *trans);
|
|
|
|
int (*resume)(struct iwl_trans *trans);
|
2011-09-16 02:46:45 +08:00
|
|
|
#endif
|
2012-01-03 19:48:07 +08:00
|
|
|
void (*write8)(struct iwl_trans *trans, u32 ofs, u8 val);
|
|
|
|
void (*write32)(struct iwl_trans *trans, u32 ofs, u32 val);
|
|
|
|
u32 (*read32)(struct iwl_trans *trans, u32 ofs);
|
2011-07-11 13:51:04 +08:00
|
|
|
};
|
|
|
|
|
2011-12-01 08:58:39 +08:00
|
|
|
/* Opaque calibration results */
|
|
|
|
struct iwl_calib_result {
|
|
|
|
struct list_head list;
|
|
|
|
size_t cmd_len;
|
|
|
|
struct iwl_calib_hdr hdr;
|
|
|
|
/* data follows */
|
|
|
|
};
|
|
|
|
|
2012-02-06 20:30:54 +08:00
|
|
|
/**
|
|
|
|
* enum iwl_trans_state - state of the transport layer
|
|
|
|
*
|
|
|
|
* @IWL_TRANS_NO_FW: no fw has sent an alive response
|
|
|
|
* @IWL_TRANS_FW_ALIVE: a fw has sent an alive response
|
|
|
|
*/
|
|
|
|
enum iwl_trans_state {
|
|
|
|
IWL_TRANS_NO_FW = 0,
|
|
|
|
IWL_TRANS_FW_ALIVE = 1,
|
|
|
|
};
|
|
|
|
|
2011-08-26 14:10:49 +08:00
|
|
|
/**
|
|
|
|
* struct iwl_trans - transport common data
|
2012-02-06 22:41:58 +08:00
|
|
|
*
|
2011-08-26 14:10:49 +08:00
|
|
|
* @ops - pointer to iwl_trans_ops
|
|
|
|
* @shrd - pointer to iwl_shared which holds shared data from the upper layer
|
2011-08-26 14:11:07 +08:00
|
|
|
* @hcmd_lock: protects HCMD
|
2012-01-03 22:56:15 +08:00
|
|
|
* @reg_lock - protect hw register access
|
2012-02-03 06:33:08 +08:00
|
|
|
* @dev - pointer to struct device * that represents the device
|
|
|
|
* @irq - the irq number for the device
|
2012-01-09 03:19:45 +08:00
|
|
|
* @hw_id: a u32 with the ID of the device / subdevice.
|
2012-02-06 22:41:58 +08:00
|
|
|
* Set during transport allocation.
|
2012-01-09 03:19:45 +08:00
|
|
|
* @hw_id_str: a string with info about HW ID. Set during transport allocation.
|
2011-11-10 22:55:07 +08:00
|
|
|
* @ucode_write_complete: indicates that the ucode has been copied.
|
2011-12-01 08:58:39 +08:00
|
|
|
* @nvm_device_type: indicates OTP or eeprom
|
2012-01-09 03:19:45 +08:00
|
|
|
* @pm_support: set to true in start_hw if link pm is supported
|
2011-12-01 08:58:39 +08:00
|
|
|
* @calib_results: list head for init calibration results
|
2011-08-26 14:10:49 +08:00
|
|
|
*/
|
2011-07-11 13:51:04 +08:00
|
|
|
struct iwl_trans {
|
|
|
|
const struct iwl_trans_ops *ops;
|
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 14:10:48 +08:00
|
|
|
struct iwl_shared *shrd;
|
2012-02-06 20:30:54 +08:00
|
|
|
enum iwl_trans_state state;
|
2011-08-26 14:11:07 +08:00
|
|
|
spinlock_t hcmd_lock;
|
2012-01-03 22:56:15 +08:00
|
|
|
spinlock_t reg_lock;
|
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 14:10:48 +08:00
|
|
|
|
2012-02-03 06:33:08 +08:00
|
|
|
struct device *dev;
|
|
|
|
unsigned int irq;
|
2012-01-09 22:23:00 +08:00
|
|
|
u32 hw_rev;
|
2012-01-09 03:19:45 +08:00
|
|
|
u32 hw_id;
|
2012-01-09 03:19:45 +08:00
|
|
|
char hw_id_str[52];
|
2012-02-03 06:33:08 +08:00
|
|
|
|
2012-02-06 22:41:58 +08:00
|
|
|
u8 ucode_write_complete;
|
2011-11-10 22:55:07 +08:00
|
|
|
|
2011-11-10 22:55:27 +08:00
|
|
|
int nvm_device_type;
|
2012-01-09 03:19:45 +08:00
|
|
|
bool pm_support;
|
2011-11-10 22:55:27 +08:00
|
|
|
|
2011-12-01 08:58:39 +08:00
|
|
|
struct list_head calib_results;
|
|
|
|
|
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 14:10:48 +08:00
|
|
|
/* pointer to trans specific struct */
|
|
|
|
/*Ensure that this pointer will always be aligned to sizeof pointer */
|
|
|
|
char trans_specific[0] __attribute__((__aligned__(sizeof(void *))));
|
2011-07-11 13:51:04 +08:00
|
|
|
};
|
|
|
|
|
2012-01-08 19:22:16 +08:00
|
|
|
static inline int iwl_trans_start_hw(struct iwl_trans *trans)
|
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 14:10:48 +08:00
|
|
|
{
|
2012-02-06 22:41:58 +08:00
|
|
|
might_sleep();
|
|
|
|
|
2012-01-08 19:22:16 +08:00
|
|
|
return trans->ops->start_hw(trans);
|
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 14:10:48 +08:00
|
|
|
}
|
|
|
|
|
2012-01-08 19:37:59 +08:00
|
|
|
static inline void iwl_trans_stop_hw(struct iwl_trans *trans)
|
|
|
|
{
|
2012-02-06 22:41:58 +08:00
|
|
|
might_sleep();
|
|
|
|
|
2012-01-08 19:37:59 +08:00
|
|
|
trans->ops->stop_hw(trans);
|
2012-02-06 20:30:54 +08:00
|
|
|
|
|
|
|
trans->state = IWL_TRANS_NO_FW;
|
2012-01-08 19:37:59 +08:00
|
|
|
}
|
|
|
|
|
2012-01-02 22:10:08 +08:00
|
|
|
static inline void iwl_trans_fw_alive(struct iwl_trans *trans)
|
|
|
|
{
|
2012-02-06 22:41:58 +08:00
|
|
|
might_sleep();
|
|
|
|
|
2012-01-02 22:10:08 +08:00
|
|
|
trans->ops->fw_alive(trans);
|
2012-02-06 20:30:54 +08:00
|
|
|
|
|
|
|
trans->state = IWL_TRANS_FW_ALIVE;
|
2012-01-02 22:10:08 +08:00
|
|
|
}
|
|
|
|
|
2012-01-08 22:33:58 +08:00
|
|
|
static inline int iwl_trans_start_fw(struct iwl_trans *trans, struct fw_img *fw)
|
2011-07-08 23:46:16 +08:00
|
|
|
{
|
2012-01-08 22:33:58 +08:00
|
|
|
might_sleep();
|
|
|
|
|
|
|
|
return trans->ops->start_fw(trans, fw);
|
2011-07-08 23:46:16 +08:00
|
|
|
}
|
|
|
|
|
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 14:10:48 +08:00
|
|
|
static inline void iwl_trans_stop_device(struct iwl_trans *trans)
|
2011-07-08 23:46:16 +08:00
|
|
|
{
|
2012-02-06 22:41:58 +08:00
|
|
|
might_sleep();
|
|
|
|
|
2011-08-26 14:11:06 +08:00
|
|
|
trans->ops->stop_device(trans);
|
2012-02-06 20:30:54 +08:00
|
|
|
|
|
|
|
trans->state = IWL_TRANS_NO_FW;
|
2011-07-08 23:46:16 +08:00
|
|
|
}
|
|
|
|
|
2011-09-16 02:46:32 +08:00
|
|
|
static inline void iwl_trans_wake_any_queue(struct iwl_trans *trans,
|
2011-11-10 22:55:24 +08:00
|
|
|
enum iwl_rxon_context_id ctx,
|
|
|
|
const char *msg)
|
2011-08-26 14:11:24 +08:00
|
|
|
{
|
2012-02-06 20:30:54 +08:00
|
|
|
if (trans->state != IWL_TRANS_FW_ALIVE)
|
|
|
|
IWL_ERR(trans, "%s bad state = %d", __func__, trans->state);
|
|
|
|
|
2011-11-10 22:55:24 +08:00
|
|
|
trans->ops->wake_any_queue(trans, ctx, msg);
|
2011-08-26 14:11:24 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
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 14:10:48 +08:00
|
|
|
static inline int iwl_trans_send_cmd(struct iwl_trans *trans,
|
2011-07-08 23:46:16 +08:00
|
|
|
struct iwl_host_cmd *cmd)
|
|
|
|
{
|
2012-02-06 20:30:54 +08:00
|
|
|
if (trans->state != IWL_TRANS_FW_ALIVE)
|
|
|
|
IWL_ERR(trans, "%s bad state = %d", __func__, trans->state);
|
|
|
|
|
2011-08-26 14:11:06 +08:00
|
|
|
return trans->ops->send_cmd(trans, cmd);
|
2011-07-08 23:46:16 +08:00
|
|
|
}
|
|
|
|
|
2011-09-16 02:46:43 +08:00
|
|
|
int iwl_trans_send_cmd_pdu(struct iwl_trans *trans, u8 id,
|
|
|
|
u32 flags, u16 len, const void *data);
|
2011-06-14 15:13:24 +08:00
|
|
|
|
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 14:10:48 +08:00
|
|
|
static inline int iwl_trans_tx(struct iwl_trans *trans, struct sk_buff *skb,
|
2011-09-16 02:46:32 +08:00
|
|
|
struct iwl_device_cmd *dev_cmd, enum iwl_rxon_context_id ctx,
|
2011-11-21 19:25:31 +08:00
|
|
|
u8 sta_id, u8 tid)
|
2011-07-03 16:22:15 +08:00
|
|
|
{
|
2012-02-06 20:30:54 +08:00
|
|
|
if (trans->state != IWL_TRANS_FW_ALIVE)
|
|
|
|
IWL_ERR(trans, "%s bad state = %d", __func__, trans->state);
|
|
|
|
|
2011-11-21 19:25:31 +08:00
|
|
|
return trans->ops->tx(trans, skb, dev_cmd, ctx, sta_id, tid);
|
2011-07-03 16:22:15 +08:00
|
|
|
}
|
|
|
|
|
2011-11-21 19:25:31 +08:00
|
|
|
static inline int iwl_trans_reclaim(struct iwl_trans *trans, int sta_id,
|
2011-08-26 14:11:26 +08:00
|
|
|
int tid, int txq_id, int ssn, u32 status,
|
2011-08-26 14:11:00 +08:00
|
|
|
struct sk_buff_head *skbs)
|
|
|
|
{
|
2012-02-06 20:30:54 +08:00
|
|
|
if (trans->state != IWL_TRANS_FW_ALIVE)
|
|
|
|
IWL_ERR(trans, "%s bad state = %d", __func__, trans->state);
|
|
|
|
|
2011-11-21 19:25:31 +08:00
|
|
|
return trans->ops->reclaim(trans, sta_id, tid, txq_id, ssn,
|
|
|
|
status, skbs);
|
2011-08-26 14:11:00 +08:00
|
|
|
}
|
|
|
|
|
2011-08-26 14:11:27 +08:00
|
|
|
static inline int iwl_trans_tx_agg_disable(struct iwl_trans *trans,
|
|
|
|
int sta_id, int tid)
|
2011-07-10 15:47:01 +08:00
|
|
|
{
|
2012-02-06 22:41:58 +08:00
|
|
|
might_sleep();
|
|
|
|
|
2012-02-06 20:30:54 +08:00
|
|
|
if (trans->state != IWL_TRANS_FW_ALIVE)
|
|
|
|
IWL_ERR(trans, "%s bad state = %d", __func__, trans->state);
|
|
|
|
|
2011-11-21 19:25:31 +08:00
|
|
|
return trans->ops->tx_agg_disable(trans, sta_id, tid);
|
2011-07-10 15:47:01 +08:00
|
|
|
}
|
|
|
|
|
2011-08-26 14:11:25 +08:00
|
|
|
static inline int iwl_trans_tx_agg_alloc(struct iwl_trans *trans,
|
2011-11-21 19:25:31 +08:00
|
|
|
int sta_id, int tid)
|
2011-08-26 14:11:25 +08:00
|
|
|
{
|
2012-02-06 22:41:58 +08:00
|
|
|
might_sleep();
|
|
|
|
|
2012-02-06 20:30:54 +08:00
|
|
|
if (trans->state != IWL_TRANS_FW_ALIVE)
|
|
|
|
IWL_ERR(trans, "%s bad state = %d", __func__, trans->state);
|
|
|
|
|
2011-11-21 19:25:31 +08:00
|
|
|
return trans->ops->tx_agg_alloc(trans, sta_id, tid);
|
2011-08-26 14:11:25 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2011-08-26 14:11:28 +08:00
|
|
|
static inline void iwl_trans_tx_agg_setup(struct iwl_trans *trans,
|
2011-08-26 14:11:22 +08:00
|
|
|
enum iwl_rxon_context_id ctx,
|
|
|
|
int sta_id, int tid,
|
2011-11-21 19:25:31 +08:00
|
|
|
int frame_limit, u16 ssn)
|
2011-07-10 15:47:01 +08:00
|
|
|
{
|
2012-02-06 22:41:58 +08:00
|
|
|
might_sleep();
|
|
|
|
|
2012-02-06 20:30:54 +08:00
|
|
|
if (trans->state != IWL_TRANS_FW_ALIVE)
|
|
|
|
IWL_ERR(trans, "%s bad state = %d", __func__, trans->state);
|
|
|
|
|
2011-11-21 19:25:31 +08:00
|
|
|
trans->ops->tx_agg_setup(trans, ctx, sta_id, tid, frame_limit, ssn);
|
2011-07-10 15:47:01 +08:00
|
|
|
}
|
|
|
|
|
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 14:10:48 +08:00
|
|
|
static inline void iwl_trans_free(struct iwl_trans *trans)
|
2011-07-04 13:58:19 +08:00
|
|
|
{
|
2011-08-26 14:11:06 +08:00
|
|
|
trans->ops->free(trans);
|
2011-07-04 13:58:19 +08:00
|
|
|
}
|
|
|
|
|
2011-11-10 22:55:24 +08:00
|
|
|
static inline void iwl_trans_stop_queue(struct iwl_trans *trans, int q,
|
|
|
|
const char *msg)
|
2011-08-26 14:11:31 +08:00
|
|
|
{
|
2012-02-06 20:30:54 +08:00
|
|
|
if (trans->state != IWL_TRANS_FW_ALIVE)
|
|
|
|
IWL_ERR(trans, "%s bad state = %d", __func__, trans->state);
|
|
|
|
|
2011-11-10 22:55:24 +08:00
|
|
|
trans->ops->stop_queue(trans, q, msg);
|
2011-08-26 14:11:31 +08:00
|
|
|
}
|
|
|
|
|
2011-08-26 14:11:29 +08:00
|
|
|
static inline int iwl_trans_wait_tx_queue_empty(struct iwl_trans *trans)
|
|
|
|
{
|
2012-02-06 20:30:54 +08:00
|
|
|
if (trans->state != IWL_TRANS_FW_ALIVE)
|
|
|
|
IWL_ERR(trans, "%s bad state = %d", __func__, trans->state);
|
|
|
|
|
2011-08-26 14:11:29 +08:00
|
|
|
return trans->ops->wait_tx_queue_empty(trans);
|
|
|
|
}
|
|
|
|
|
2011-08-26 14:11:30 +08:00
|
|
|
static inline int iwl_trans_check_stuck_queue(struct iwl_trans *trans, int q)
|
|
|
|
{
|
2012-02-06 20:30:54 +08:00
|
|
|
if (trans->state != IWL_TRANS_FW_ALIVE)
|
|
|
|
IWL_ERR(trans, "%s bad state = %d", __func__, trans->state);
|
|
|
|
|
2011-08-26 14:11:30 +08:00
|
|
|
return trans->ops->check_stuck_queue(trans, q);
|
|
|
|
}
|
2011-08-26 14:10:50 +08:00
|
|
|
static inline int iwl_trans_dbgfs_register(struct iwl_trans *trans,
|
|
|
|
struct dentry *dir)
|
|
|
|
{
|
|
|
|
return trans->ops->dbgfs_register(trans, dir);
|
|
|
|
}
|
|
|
|
|
2011-09-16 02:46:45 +08:00
|
|
|
#ifdef CONFIG_PM_SLEEP
|
2011-08-26 14:10:52 +08:00
|
|
|
static inline int iwl_trans_suspend(struct iwl_trans *trans)
|
|
|
|
{
|
|
|
|
return trans->ops->suspend(trans);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline int iwl_trans_resume(struct iwl_trans *trans)
|
|
|
|
{
|
|
|
|
return trans->ops->resume(trans);
|
|
|
|
}
|
2011-09-16 02:46:45 +08:00
|
|
|
#endif
|
2011-08-26 14:10:52 +08:00
|
|
|
|
2012-01-03 19:48:07 +08:00
|
|
|
static inline void iwl_trans_write8(struct iwl_trans *trans, u32 ofs, u8 val)
|
|
|
|
{
|
|
|
|
trans->ops->write8(trans, ofs, val);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void iwl_trans_write32(struct iwl_trans *trans, u32 ofs, u32 val)
|
|
|
|
{
|
|
|
|
trans->ops->write32(trans, ofs, val);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline u32 iwl_trans_read32(struct iwl_trans *trans, u32 ofs)
|
|
|
|
{
|
|
|
|
return trans->ops->read32(trans, ofs);
|
|
|
|
}
|
|
|
|
|
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 14:10:48 +08:00
|
|
|
/*****************************************************
|
2012-02-03 06:16:59 +08:00
|
|
|
* Utils functions
|
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 14:10:48 +08:00
|
|
|
******************************************************/
|
2011-12-01 08:58:39 +08:00
|
|
|
int iwl_send_calib_results(struct iwl_trans *trans);
|
|
|
|
int iwl_calib_set(struct iwl_trans *trans,
|
|
|
|
const struct iwl_calib_hdr *cmd, int len);
|
|
|
|
void iwl_calib_free_results(struct iwl_trans *trans);
|
|
|
|
|
2012-02-03 06:16:59 +08:00
|
|
|
/*****************************************************
|
|
|
|
* Transport layers implementations + their allocation function
|
|
|
|
******************************************************/
|
|
|
|
struct pci_dev;
|
|
|
|
struct pci_device_id;
|
|
|
|
extern const struct iwl_trans_ops trans_ops_pcie;
|
|
|
|
struct iwl_trans *iwl_trans_pcie_alloc(struct iwl_shared *shrd,
|
|
|
|
struct pci_dev *pdev,
|
|
|
|
const struct pci_device_id *ent);
|
|
|
|
|
|
|
|
extern const struct iwl_trans_ops trans_ops_idi;
|
|
|
|
struct iwl_trans *iwl_trans_idi_alloc(struct iwl_shared *shrd,
|
|
|
|
void *pdev_void,
|
|
|
|
const void *ent_void);
|
2011-07-11 13:51:04 +08:00
|
|
|
#endif /* __iwl_trans_h__ */
|