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iwlwifi: introducing the drv object's flows

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Fetch the fw and spawn the op_mode. The op_mode that we need
to fetch is determined from the fw file.
Since the fw is fetched very early in the init flow, we can
determine what op_mode to spawn.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
This commit is contained in:
Emmanuel Grumbach 2012-02-07 14:18:40 +02:00 committed by Wey-Yi Guy
parent a78be210d5
commit 5c58edc63e
6 changed files with 210 additions and 29 deletions
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1
drivers/net/wireless/iwlwifi/Makefile
View File

@ -13,6 +13,7 @@ iwlwifi-objs += iwl-6000.o
iwlwifi-objs += iwl-1000.o
iwlwifi-objs += iwl-2000.o
iwlwifi-objs += iwl-pci.o
iwlwifi-objs += iwl-drv.o
iwlwifi-objs += iwl-trans.o
iwlwifi-objs += iwl-trans-pcie.o iwl-trans-pcie-rx.o iwl-trans-pcie-tx.o

10
drivers/net/wireless/iwlwifi/iwl-agn.c
View File

@ -1331,16 +1331,6 @@ out:
return err;
}
int iwl_probe(struct iwl_bus *bus, const struct iwl_trans_ops *trans_ops,
struct iwl_cfg *cfg)
{
bus->shrd->cfg = cfg;
init_completion(&nic(bus)->request_firmware_complete);
return iwl_request_firmware(nic(bus), true);
}
void __devexit iwl_remove(struct iwl_priv * priv)
{
wait_for_completion(&nic(priv)->request_firmware_complete);

94
drivers/net/wireless/iwlwifi/iwl-drv.c Normal file
View File

@ -0,0 +1,94 @@
/******************************************************************************
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2007 - 2012 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
* BSD LICENSE
*
* Copyright(c) 2005 - 2012 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*****************************************************************************/
#include <linux/completion.h>
#include "iwl-drv.h"
#include "iwl-trans.h"
#include "iwl-wifi.h"
int iwl_drv_start(struct iwl_shared *shrd,
struct iwl_trans *trans, struct iwl_cfg *cfg)
{
int ret;
shrd->cfg = cfg;
shrd->nic = kzalloc(sizeof(*shrd->nic), GFP_KERNEL);
if (!shrd->nic) {
dev_printk(KERN_ERR, trans->dev, "Couldn't allocate iwl_nic");
return -ENOMEM;
}
shrd->nic->shrd = shrd;
init_completion(&shrd->nic->request_firmware_complete);
ret = iwl_request_firmware(shrd->nic, true);
if (ret) {
dev_printk(KERN_ERR, trans->dev, "Couldn't request the fw");
kfree(shrd->nic);
}
return ret;
}

110
drivers/net/wireless/iwlwifi/iwl-drv.h Normal file
View File

@ -0,0 +1,110 @@
/******************************************************************************
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2012 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
* BSD LICENSE
*
* Copyright(c) 2005 - 2012 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
#ifndef __iwl_drv_h__
#define __iwl_drv_h__
#include "iwl-shared.h"
/**
* DOC: Driver system flows - drv component
*
* This component implements the system flows such as bus enumeration, bus
* removal. Bus dependent parts of system flows (such as iwl_pci_probe) are in
* bus specific files (transport files). This is the code that is common among
* different buses.
*
* This component is also in charge of managing the several implementations of
* the wifi flows: it will allow to have several fw API implementation. These
* different implementations will differ in the way they implement mac80211's
* handlers too.
* The init flow wrt to the drv component looks like this:
* 1) The bus specific component is called from module_init
* 2) The bus specific component registers the bus driver
* 3) The bus driver calls the probe function
* 4) The bus specific component configures the bus
* 5) The bus specific component calls to the drv bus agnostic part
* (iwl_drv_start)
* 6) iwl_drv_start fetches the fw ASYNC, iwl_ucode_callback
* 7) iwl_ucode_callback parses the fw file
* 8) iwl_ucode_callback starts the wifi implementation to matches the fw
*/
/**
* iwl_drv_start - start the drv
*
* @shrd: the shrd area
* @trans_ops: the ops of the transport
* @cfg: device specific constants / virtual functions
*
* TODO: review the parameters given to this function
*
* starts the driver: fetches the firmware. This should be called by bus
* specific system flows implementations. For example, the bus specific probe
* function should do bus related operations only, and then call to this
* function.
*/
int iwl_drv_start(struct iwl_shared *shrd,
struct iwl_trans *trans, struct iwl_cfg *cfg);
#endif /* __iwl_drv_h__ */

22
drivers/net/wireless/iwlwifi/iwl-pci.c
View File

@ -70,7 +70,7 @@
#include "iwl-trans.h"
#include "iwl-csr.h"
#include "iwl-cfg.h"
#include "iwl-wifi.h"
#include "iwl-drv.h"
#define IWL_PCI_DEVICE(dev, subdev, cfg) \
.vendor = PCI_VENDOR_ID_INTEL, .device = (dev), \
@ -283,34 +283,24 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
bus->shrd->bus = bus;
/* temporarily create this here */
bus->shrd->nic = kzalloc(sizeof(*bus->shrd->nic), GFP_KERNEL);
if (!bus->shrd->nic) {
dev_printk(KERN_ERR, &pdev->dev,
"Couldn't allocate iwl_nic");
err = -ENOMEM;
goto out_free_bus;
}
/* and initialize it as well, temporarily */
bus->shrd->nic->shrd = bus->shrd;
pci_set_drvdata(pdev, bus);
#ifdef CONFIG_IWLWIFI_IDI
trans(bus) = iwl_trans_idi_alloc(bus->shrd, pdev, ent);
if (trans(bus) == NULL) {
err = -ENOMEM;
goto out_free_nic;
goto out_free_bus;
}
err = iwl_probe(bus, &trans_ops_idi, cfg);
err = iwl_drv_start(bus->shrd, trans(bus), cfg);
#else
trans(bus) = iwl_trans_pcie_alloc(bus->shrd, pdev, ent);
if (trans(bus) == NULL) {
err = -ENOMEM;
goto out_free_nic;
goto out_free_bus;
}
err = iwl_probe(bus, &trans_ops_pcie, cfg);
err = iwl_drv_start(bus->shrd, trans(bus), cfg);
#endif
if (err)
goto out_free_trans;
@ -320,8 +310,6 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
out_free_trans:
iwl_trans_free(trans(bus));
pci_set_drvdata(pdev, NULL);
out_free_nic:
kfree(bus->shrd->nic);
out_free_bus:
kfree(bus->shrd);
kfree(bus);

2
drivers/net/wireless/iwlwifi/iwl-shared.h
View File

@ -535,8 +535,6 @@ enum iwl_rxon_context_id {
int iwl_op_mode_dvm_start(struct iwl_bus *bus,
const struct iwl_trans_ops *trans_ops,
struct iwl_cfg *cfg);
int iwl_probe(struct iwl_bus *bus, const struct iwl_trans_ops *trans_ops,
struct iwl_cfg *cfg);
void __devexit iwl_remove(struct iwl_priv * priv);
struct iwl_device_cmd;
int __must_check iwl_rx_dispatch(struct iwl_priv *priv,