iwl-drv.h

/******************************************************************************
 *
 * 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 - 2014 Intel Corporation. All rights reserved.
 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
 *
 * 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.
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 * General Public License for more details.
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 * 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 COPYING.
 *
 * Contact Information:
 *  Intel Linux Wireless <linuxwifi@intel.com>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 * BSD LICENSE
 *
 * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
 * All rights reserved.
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 * modification, are permitted provided that the following conditions
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 *****************************************************************************/

#ifndef __iwl_drv_h__
#define __iwl_drv_h__
#include <linux/export.h>

/* for all modules */
#define DRV_NAME        "iwlwifi"
#define DRV_COPYRIGHT	"Copyright(c) 2003- 2015 Intel Corporation"
#define DRV_AUTHOR     "<linuxwifi@intel.com>"

/* radio config bits (actual values from NVM definition) */
#define NVM_RF_CFG_DASH_MSK(x)   (x & 0x3)         /* bits 0-1   */
#define NVM_RF_CFG_STEP_MSK(x)   ((x >> 2)  & 0x3) /* bits 2-3   */
#define NVM_RF_CFG_TYPE_MSK(x)   ((x >> 4)  & 0x3) /* bits 4-5   */
#define NVM_RF_CFG_PNUM_MSK(x)   ((x >> 6)  & 0x3) /* bits 6-7   */
#define NVM_RF_CFG_TX_ANT_MSK(x) ((x >> 8)  & 0xF) /* bits 8-11  */
#define NVM_RF_CFG_RX_ANT_MSK(x) ((x >> 12) & 0xF) /* bits 12-15 */

#define EXT_NVM_RF_CFG_FLAVOR_MSK(x)   ((x) & 0xF)
#define EXT_NVM_RF_CFG_DASH_MSK(x)   (((x) >> 4) & 0xF)
#define EXT_NVM_RF_CFG_STEP_MSK(x)   (((x) >> 8) & 0xF)
#define EXT_NVM_RF_CFG_TYPE_MSK(x)   (((x) >> 12) & 0xFFF)
#define EXT_NVM_RF_CFG_TX_ANT_MSK(x) (((x) >> 24) & 0xF)
#define EXT_NVM_RF_CFG_RX_ANT_MSK(x) (((x) >> 28) & 0xF)

/**
 * 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_req_fw_callback
 * 7) iwl_req_fw_callback parses the fw file
 * 8) iwl_req_fw_callback starts the wifi implementation to matches the fw
 */

struct iwl_drv;
struct iwl_trans;
struct iwl_cfg;
/**
 * iwl_drv_start - start the drv
 *
 * @trans_ops: the ops of the transport
 *
 * 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. It returns the driver object or %NULL if an error occurred.
 */
struct iwl_drv *iwl_drv_start(struct iwl_trans *trans);

/**
 * iwl_drv_stop - stop the drv
 *
 * @drv:
 *
 * 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_drv *drv);

/*
 * exported symbol management
 *
 * The driver can be split into multiple modules, in which case some symbols
 * must be exported for the sub-modules. However, if it's not split and
 * everything is built-in, then we can avoid that.
 */
#ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
#define IWL_EXPORT_SYMBOL(sym)	EXPORT_SYMBOL_GPL(sym)
#else
#define IWL_EXPORT_SYMBOL(sym)
#endif

#endif /* __iwl_drv_h__ */