From 5c58edc63edd6cd8097e2bee90e2d341e33bcd60 Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Tue, 7 Feb 2012 14:18:40 +0200 Subject: iwlwifi: introducing the drv object's flows 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 Signed-off-by: Wey-Yi Guy --- drivers/net/wireless/iwlwifi/iwl-drv.h | 110 +++++++++++++++++++++++++++++++++ 1 file changed, 110 insertions(+) create mode 100644 drivers/net/wireless/iwlwifi/iwl-drv.h (limited to 'drivers/net/wireless/iwlwifi/iwl-drv.h') diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.h b/drivers/net/wireless/iwlwifi/iwl-drv.h new file mode 100644 index 000000000000..c40545199224 --- /dev/null +++ b/drivers/net/wireless/iwlwifi/iwl-drv.h @@ -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 + * 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__ */ -- cgit v1.2.3 From 07590f080d5f29e33158b22f7ad6079b85d87609 Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Tue, 7 Feb 2012 14:27:31 +0200 Subject: iwlwifi: drv object can release its own memory Move that code to the iwl-drv.c Signed-off-by: Emmanuel Grumbach Signed-off-by: Wey-Yi Guy --- drivers/net/wireless/iwlwifi/iwl-drv.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'drivers/net/wireless/iwlwifi/iwl-drv.h') diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.h b/drivers/net/wireless/iwlwifi/iwl-drv.h index c40545199224..90534a23ddc8 100644 --- a/drivers/net/wireless/iwlwifi/iwl-drv.h +++ b/drivers/net/wireless/iwlwifi/iwl-drv.h @@ -107,4 +107,17 @@ int iwl_drv_start(struct iwl_shared *shrd, struct iwl_trans *trans, struct iwl_cfg *cfg); +/** + * iwl_drv_stop - stop the drv + * + * @shrd: the shrd area + * + * TODO: review the parameters given to this function + * + * Stop the driver. This should be called by bus specific system flows + * implementations. For example, the bus specific remove function should first + * call this function and then do the bus related operations only. + */ +void iwl_drv_stop(struct iwl_shared *shrd); + #endif /* __iwl_drv_h__ */ -- cgit v1.2.3 From 706c4ff67cb86134a3a93413a595a7c5559b7cc2 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 5 Mar 2012 11:24:33 -0800 Subject: iwlwifi: make config const Writing to the global config structures is always wrong. To protect against such mistakes in the future, mark them const. Signed-off-by: Johannes Berg Signed-off-by: Wey-Yi Guy Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-drv.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net/wireless/iwlwifi/iwl-drv.h') diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.h b/drivers/net/wireless/iwlwifi/iwl-drv.h index 90534a23ddc8..3b771c1d9096 100644 --- a/drivers/net/wireless/iwlwifi/iwl-drv.h +++ b/drivers/net/wireless/iwlwifi/iwl-drv.h @@ -105,7 +105,7 @@ * function. */ int iwl_drv_start(struct iwl_shared *shrd, - struct iwl_trans *trans, struct iwl_cfg *cfg); + struct iwl_trans *trans, const struct iwl_cfg *cfg); /** * iwl_drv_stop - stop the drv -- cgit v1.2.3