third_party/iwlwifi/iwl-drv.h

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 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
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#ifndef SRC_CONNECTIVITY_WLAN_DRIVERS_THIRD_PARTY_INTEL_IWLWIFI_IWL_DRV_H_
#define SRC_CONNECTIVITY_WLAN_DRIVERS_THIRD_PARTY_INTEL_IWLWIFI_IWL_DRV_H_

#include <zircon/types.h>

#include "third_party/iwlwifi/platform/kernel.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_init - initialize the drv
 *
 * Initializes the driver: data struct initialization.
 */
zx_status_t iwl_drv_init(void);

/**
 * iwl_drv_start - start the drv
 *
 * @trans: the transport object
 *
 * 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. On success, returns the new driver object in out_drv.
 */
zx_status_t iwl_drv_start(struct iwl_trans* trans, struct iwl_drv** out_drv);

/**
 * 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);

/*
 * iwl_drv_get_dev_container - Given a device, returns the pointer
 * to it's corresponding driver's struct
 */
struct iwl_drv* iwl_drv_get_dev_container(struct device* dev);

/*
 * iwl_drv_switch_op_mode - Switch between operation modes
 * Checks if the desired operation mode is valid, if it
 * is supported by the device. Stops the current op mode
 * and starts the desired mode.
 */
int iwl_drv_switch_op_mode(struct iwl_drv* drv, const char* new_op_name);

/*
 * 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 CPTCFG_IWLWIFI_OPMODE_MODULAR
#define IWL_EXPORT_SYMBOL(sym) EXPORT_SYMBOL_GPL(sym)
#else
#define IWL_EXPORT_SYMBOL(sym)
#endif

#endif  // SRC_CONNECTIVITY_WLAN_DRIVERS_THIRD_PARTY_INTEL_IWLWIFI_IWL_DRV_H_