96 lines
3.4 KiB
C
96 lines
3.4 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
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/*
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* Copyright (C) 2005-2014, 2020-2021 Intel Corporation
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* Copyright (C) 2013-2014 Intel Mobile Communications GmbH
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*/
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#ifndef __iwl_drv_h__
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#define __iwl_drv_h__
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#include <linux/export.h>
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/* for all modules */
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#define DRV_NAME "iwlwifi"
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/* radio config bits (actual values from NVM definition) */
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#define NVM_RF_CFG_DASH_MSK(x) (x & 0x3) /* bits 0-1 */
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#define NVM_RF_CFG_STEP_MSK(x) ((x >> 2) & 0x3) /* bits 2-3 */
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#define NVM_RF_CFG_TYPE_MSK(x) ((x >> 4) & 0x3) /* bits 4-5 */
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#define NVM_RF_CFG_PNUM_MSK(x) ((x >> 6) & 0x3) /* bits 6-7 */
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#define NVM_RF_CFG_TX_ANT_MSK(x) ((x >> 8) & 0xF) /* bits 8-11 */
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#define NVM_RF_CFG_RX_ANT_MSK(x) ((x >> 12) & 0xF) /* bits 12-15 */
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#define EXT_NVM_RF_CFG_FLAVOR_MSK(x) ((x) & 0xF)
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#define EXT_NVM_RF_CFG_DASH_MSK(x) (((x) >> 4) & 0xF)
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#define EXT_NVM_RF_CFG_STEP_MSK(x) (((x) >> 8) & 0xF)
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#define EXT_NVM_RF_CFG_TYPE_MSK(x) (((x) >> 12) & 0xFFF)
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#define EXT_NVM_RF_CFG_TX_ANT_MSK(x) (((x) >> 24) & 0xF)
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#define EXT_NVM_RF_CFG_RX_ANT_MSK(x) (((x) >> 28) & 0xF)
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/**
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* DOC: Driver system flows - drv component
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*
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* This component implements the system flows such as bus enumeration, bus
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* removal. Bus dependent parts of system flows (such as iwl_pci_probe) are in
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* bus specific files (transport files). This is the code that is common among
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* different buses.
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*
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* This component is also in charge of managing the several implementations of
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* the wifi flows: it will allow to have several fw API implementation. These
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* different implementations will differ in the way they implement mac80211's
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* handlers too.
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* The init flow wrt to the drv component looks like this:
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* 1) The bus specific component is called from module_init
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* 2) The bus specific component registers the bus driver
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* 3) The bus driver calls the probe function
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* 4) The bus specific component configures the bus
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* 5) The bus specific component calls to the drv bus agnostic part
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* (iwl_drv_start)
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* 6) iwl_drv_start fetches the fw ASYNC, iwl_req_fw_callback
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* 7) iwl_req_fw_callback parses the fw file
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* 8) iwl_req_fw_callback starts the wifi implementation to matches the fw
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*/
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struct iwl_drv;
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struct iwl_trans;
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struct iwl_cfg;
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/**
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* iwl_drv_start - start the drv
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*
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* @trans_ops: the ops of the transport
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*
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* starts the driver: fetches the firmware. This should be called by bus
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* specific system flows implementations. For example, the bus specific probe
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* function should do bus related operations only, and then call to this
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* function. It returns the driver object or %NULL if an error occurred.
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*/
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struct iwl_drv *iwl_drv_start(struct iwl_trans *trans);
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/**
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* iwl_drv_stop - stop the drv
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*
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* @drv:
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*
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* Stop the driver. This should be called by bus specific system flows
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* implementations. For example, the bus specific remove function should first
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* call this function and then do the bus related operations only.
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*/
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void iwl_drv_stop(struct iwl_drv *drv);
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/*
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* exported symbol management
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*
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* The driver can be split into multiple modules, in which case some symbols
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* must be exported for the sub-modules. However, if it's not split and
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* everything is built-in, then we can avoid that.
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*/
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#ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
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#define IWL_EXPORT_SYMBOL(sym) EXPORT_SYMBOL_NS_GPL(sym, IWLWIFI)
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#else
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#define IWL_EXPORT_SYMBOL(sym)
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#endif
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/* max retry for init flow */
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#define IWL_MAX_INIT_RETRY 2
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#endif /* __iwl_drv_h__ */
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