28dba98f8b
Define QDF API such that legacy module can register fw down callback and new components can use QDF API to check if fw is down or not. Change-Id: I2f5423943f351ee3a0fd84616c904a27702c10e3 CRs-Fixed: 2194451
667 行
17 KiB
C
667 行
17 KiB
C
/*
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* Copyright (c) 2014-2018 The Linux Foundation. All rights reserved.
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*
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* Previously licensed under the ISC license by Qualcomm Atheros, Inc.
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*
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*
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* Permission to use, copy, modify, and/or distribute this software for
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* any purpose with or without fee is hereby granted, provided that the
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* above copyright notice and this permission notice appear in all
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* copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
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* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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* This file was originally distributed by Qualcomm Atheros, Inc.
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* under proprietary terms before Copyright ownership was assigned
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* to the Linux Foundation.
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*/
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/**
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* DOC: qdf_util.h
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* This file defines utility functions.
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*/
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#ifndef _QDF_UTIL_H
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#define _QDF_UTIL_H
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#include <i_qdf_util.h>
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#ifdef QCA_CONFIG_SMP
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#define QDF_MAX_AVAILABLE_CPU 8
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#else
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#define QDF_MAX_AVAILABLE_CPU 1
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#endif
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typedef __qdf_wait_queue_head_t qdf_wait_queue_head_t;
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typedef void (*qdf_fw_down_callback)(void);
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/**
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* qdf_unlikely - Compiler-dependent macro denoting code likely to execute
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* @_expr: expression to be checked
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*/
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#define qdf_unlikely(_expr) __qdf_unlikely(_expr)
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/**
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* qdf_likely - Compiler-dependent macro denoting code unlikely to execute
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* @_expr: expression to be checked
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*/
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#define qdf_likely(_expr) __qdf_likely(_expr)
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/**
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* qdf_mb - read + write memory barrier.
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*/
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#define qdf_mb() __qdf_mb()
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/**
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* qdf_ioread32 - read a register
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* @offset: register address
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*/
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#define qdf_ioread32(offset) __qdf_ioread32(offset)
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/**
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* qdf_iowrite32 - write a register
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* @offset: register address
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* @value: value to write (32bit value)
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*/
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#define qdf_iowrite32(offset, value) __qdf_iowrite32(offset, value)
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/**
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* qdf_assert - assert "expr" evaluates to false.
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*/
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#ifdef QDF_DEBUG
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#define qdf_assert(expr) __qdf_assert(expr)
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#else
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#define qdf_assert(expr)
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#endif /* QDF_DEBUG */
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/**
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* qdf_assert_always - alway assert "expr" evaluates to false.
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*/
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#define qdf_assert_always(expr) __qdf_assert(expr)
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/**
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* qdf_target_assert_always - alway target assert "expr" evaluates to false.
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*/
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#define qdf_target_assert_always(expr) __qdf_target_assert(expr)
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/**
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* QDF_MAX - get maximum of two values
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* @_x: 1st arguement
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* @_y: 2nd arguement
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*/
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#define QDF_MAX(_x, _y) (((_x) > (_y)) ? (_x) : (_y))
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/**
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* QDF_MIN - get minimum of two values
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* @_x: 1st arguement
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* @_y: 2nd arguement
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*/
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#define QDF_MIN(_x, _y) (((_x) < (_y)) ? (_x) : (_y))
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/**
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* qdf_status_to_os_return - returns the status to OS.
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* @status: enum QDF_STATUS
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*
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* returns: int status success/failure
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*/
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static inline int qdf_status_to_os_return(QDF_STATUS status)
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{
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return __qdf_status_to_os_return(status);
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}
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/**
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* qdf_set_bit() - set bit in address
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* @nr: bit number to be set
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* @addr: address buffer pointer
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*
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* Return: none
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*/
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#define qdf_set_bit(nr, addr) __qdf_set_bit(nr, addr)
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/**
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* qdf_clear_bit() - clear bit in address
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* @nr: bit number to be clear
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* @addr: address buffer pointer
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*
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* Return: none
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*/
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#define qdf_clear_bit(nr, addr) __qdf_clear_bit(nr, addr)
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/**
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* qdf_test_bit() - test bit position in address
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* @nr: bit number to be tested
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* @addr: address buffer pointer
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*
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* Return: none
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*/
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#define qdf_test_bit(nr, addr) __qdf_test_bit(nr, addr)
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/**
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* qdf_test_and_clear_bit() - test and clear bit position in address
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* @nr: bit number to be tested
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* @addr: address buffer pointer
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*
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* Return: none
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*/
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#define qdf_test_and_clear_bit(nr, addr) __qdf_test_and_clear_bit(nr, addr)
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/**
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* qdf_find_first_bit() - find first bit position in address
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* @addr: address buffer pointer
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* @nbits: number of bits
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*
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* Return: position first set bit in addr
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*/
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#define qdf_find_first_bit(addr, nbits) __qdf_find_first_bit(addr, nbits)
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#define qdf_wait_queue_interruptible(wait_queue, condition) \
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__qdf_wait_queue_interruptible(wait_queue, condition)
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/**
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* qdf_wait_queue_timeout() - wait for specified time on given condition
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* @wait_queue: wait queue to wait on
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* @condition: condition to wait on
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* @timeout: timeout value in jiffies
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*
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* Return: 0 if condition becomes false after timeout
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* 1 or remaining jiffies, if condition becomes true during timeout
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*/
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#define qdf_wait_queue_timeout(wait_queue, condition, timeout) \
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__qdf_wait_queue_timeout(wait_queue, \
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condition, timeout)
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#define qdf_init_waitqueue_head(_q) __qdf_init_waitqueue_head(_q)
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#define qdf_wake_up_interruptible(_q) __qdf_wake_up_interruptible(_q)
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/**
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* qdf_wake_up() - wakes up sleeping waitqueue
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* @wait_queue: wait queue, which needs wake up
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*
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* Return: none
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*/
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#define qdf_wake_up(_q) __qdf_wake_up(_q)
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#define qdf_wake_up_completion(_q) __qdf_wake_up_completion(_q)
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/**
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* qdf_container_of - cast a member of a structure out to the containing
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* structure
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* @ptr: the pointer to the member.
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* @type: the type of the container struct this is embedded in.
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* @member: the name of the member within the struct.
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*/
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#define qdf_container_of(ptr, type, member) \
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__qdf_container_of(ptr, type, member)
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/**
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* qdf_is_pwr2 - test input value is power of 2 integer
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* @value: input integer
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*/
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#define QDF_IS_PWR2(value) (((value) ^ ((value)-1)) == ((value) << 1) - 1)
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/**
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* qdf_roundup() - roundup the input value
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* @x: value to roundup
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* @y: input value rounded to multiple of this
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*
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* Return: rounded value
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*/
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#define qdf_roundup(x, y) __qdf_roundup(x, y)
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/**
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* qdf_is_macaddr_equal() - compare two QDF MacAddress
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* @mac_addr1: Pointer to one qdf MacAddress to compare
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* @mac_addr2: Pointer to the other qdf MacAddress to compare
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*
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* This function returns a bool that tells if a two QDF MacAddress'
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* are equivalent.
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*
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* Return: true if the MacAddress's are equal
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* not true if the MacAddress's are not equal
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*/
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static inline bool qdf_is_macaddr_equal(struct qdf_mac_addr *mac_addr1,
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struct qdf_mac_addr *mac_addr2)
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{
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return __qdf_is_macaddr_equal(mac_addr1, mac_addr2);
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}
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/**
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* qdf_is_macaddr_zero() - check for a MacAddress of all zeros.
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* @mac_addr: pointer to the struct qdf_mac_addr to check.
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*
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* This function returns a bool that tells if a MacAddress is made up of
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* all zeros.
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*
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* Return: true if the MacAddress is all Zeros
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* false if the MacAddress is not all Zeros.
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*/
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static inline bool qdf_is_macaddr_zero(struct qdf_mac_addr *mac_addr)
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{
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struct qdf_mac_addr zero_mac_addr = QDF_MAC_ADDR_ZERO_INIT;
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return qdf_is_macaddr_equal(mac_addr, &zero_mac_addr);
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}
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/**
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* qdf_zero_macaddr() - zero out a MacAddress
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* @mac_addr: pointer to the struct qdf_mac_addr to zero.
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*
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* This function zeros out a QDF MacAddress type.
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*
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* Return: none
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*/
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static inline void qdf_zero_macaddr(struct qdf_mac_addr *mac_addr)
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{
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__qdf_zero_macaddr(mac_addr);
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}
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/**
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* qdf_is_macaddr_group() - check for a MacAddress is a 'group' address
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* @mac_addr1: pointer to the qdf MacAddress to check
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*
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* This function returns a bool that tells if a the input QDF MacAddress
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* is a "group" address. Group addresses have the 'group address bit' turned
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* on in the MacAddress. Group addresses are made up of Broadcast and
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* Multicast addresses.
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*
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* Return: true if the input MacAddress is a Group address
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* false if the input MacAddress is not a Group address
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*/
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static inline bool qdf_is_macaddr_group(struct qdf_mac_addr *mac_addr)
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{
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return mac_addr->bytes[0] & 0x01;
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}
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/**
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* qdf_is_macaddr_broadcast() - check for a MacAddress is a broadcast address
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* @mac_addr: Pointer to the qdf MacAddress to check
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*
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* This function returns a bool that tells if a the input QDF MacAddress
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* is a "broadcast" address.
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*
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* Return: true if the input MacAddress is a broadcast address
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* flase if the input MacAddress is not a broadcast address
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*/
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static inline bool qdf_is_macaddr_broadcast(struct qdf_mac_addr *mac_addr)
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{
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struct qdf_mac_addr broadcast_mac_addr = QDF_MAC_ADDR_BCAST_INIT;
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return qdf_is_macaddr_equal(mac_addr, &broadcast_mac_addr);
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}
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/**
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* qdf_copy_macaddr() - copy a QDF MacAddress
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* @dst_addr: pointer to the qdf MacAddress to copy TO (the destination)
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* @src_addr: pointer to the qdf MacAddress to copy FROM (the source)
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*
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* This function copies a QDF MacAddress into another QDF MacAddress.
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*
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* Return: none
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*/
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static inline void qdf_copy_macaddr(struct qdf_mac_addr *dst_addr,
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struct qdf_mac_addr *src_addr)
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{
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*dst_addr = *src_addr;
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}
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/**
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* qdf_set_macaddr_broadcast() - set a QDF MacAddress to the 'broadcast'
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* @mac_addr: pointer to the qdf MacAddress to set to broadcast
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*
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* This function sets a QDF MacAddress to the 'broadcast' MacAddress. Broadcast
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* MacAddress contains all 0xFF bytes.
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*
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* Return: none
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*/
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static inline void qdf_set_macaddr_broadcast(struct qdf_mac_addr *mac_addr)
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{
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__qdf_set_macaddr_broadcast(mac_addr);
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}
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/**
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* qdf_set_u16() - Assign 16-bit unsigned value to a byte array base on CPU's
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* endianness.
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* @ptr: Starting address of a byte array
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* @value: The value to assign to the byte array
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*
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* Caller must validate the byte array has enough space to hold the vlaue
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*
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* Return: The address to the byte after the assignment. This may or may not
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* be valid. Caller to verify.
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*/
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static inline uint8_t *qdf_set_u16(uint8_t *ptr, uint16_t value)
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{
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#if defined(ANI_BIG_BYTE_ENDIAN)
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*(ptr) = (uint8_t) (value >> 8);
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*(ptr + 1) = (uint8_t) (value);
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#else
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*(ptr + 1) = (uint8_t) (value >> 8);
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*(ptr) = (uint8_t) (value);
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#endif
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return ptr + 2;
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}
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/**
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* qdf_get_u16() - Retrieve a 16-bit unsigned value from a byte array base on
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* CPU's endianness.
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* @ptr: Starting address of a byte array
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* @value: Pointer to a caller allocated buffer for 16 bit value. Value is to
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* assign to this location.
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*
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* Caller must validate the byte array has enough space to hold the vlaue
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*
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* Return: The address to the byte after the assignment. This may or may not
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* be valid. Caller to verify.
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*/
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static inline uint8_t *qdf_get_u16(uint8_t *ptr, uint16_t *value)
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{
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#if defined(ANI_BIG_BYTE_ENDIAN)
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*value = (((uint16_t) (*ptr << 8)) | ((uint16_t) (*(ptr + 1))));
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#else
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*value = (((uint16_t) (*(ptr + 1) << 8)) | ((uint16_t) (*ptr)));
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#endif
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return ptr + 2;
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}
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/**
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* qdf_get_u32() - retrieve a 32-bit unsigned value from a byte array base on
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* CPU's endianness.
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* @ptr: Starting address of a byte array
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* @value: Pointer to a caller allocated buffer for 32 bit value. Value is to
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* assign to this location.
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*
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* Caller must validate the byte array has enough space to hold the vlaue
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*
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* Return: The address to the byte after the assignment. This may or may not
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* be valid. Caller to verify.
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*/
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static inline uint8_t *qdf_get_u32(uint8_t *ptr, uint32_t *value)
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{
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#if defined(ANI_BIG_BYTE_ENDIAN)
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*value = ((uint32_t) (*(ptr) << 24) |
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(uint32_t) (*(ptr + 1) << 16) |
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(uint32_t) (*(ptr + 2) << 8) | (uint32_t) (*(ptr + 3)));
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#else
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*value = ((uint32_t) (*(ptr + 3) << 24) |
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(uint32_t) (*(ptr + 2) << 16) |
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(uint32_t) (*(ptr + 1) << 8) | (uint32_t) (*(ptr)));
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#endif
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return ptr + 4;
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}
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/**
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* qdf_ntohs - Convert a 16-bit value from network byte order to host byte order
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*/
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#define qdf_ntohs(x) __qdf_ntohs(x)
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/**
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* qdf_ntohl - Convert a 32-bit value from network byte order to host byte order
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*/
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#define qdf_ntohl(x) __qdf_ntohl(x)
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/**
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* qdf_htons - Convert a 16-bit value from host byte order to network byte order
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*/
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#define qdf_htons(x) __qdf_htons(x)
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/**
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* qdf_htonl - Convert a 32-bit value from host byte order to network byte order
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*/
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#define qdf_htonl(x) __qdf_htonl(x)
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/**
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* qdf_cpu_to_le16 - Convert a 16-bit value from CPU byte order to
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* little-endian byte order
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*
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* @x: value to be converted
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*/
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#define qdf_cpu_to_le16(x) __qdf_cpu_to_le16(x)
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/**
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* qdf_cpu_to_le32 - Convert a 32-bit value from CPU byte order to
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* little-endian byte order
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*
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* @x: value to be converted
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*/
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#define qdf_cpu_to_le32(x) __qdf_cpu_to_le32(x)
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/**
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* qdf_cpu_to_le64 - Convert a 64-bit value from CPU byte order to
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* little-endian byte order
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*
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* @x: value to be converted
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*/
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#define qdf_cpu_to_le64(x) __qdf_cpu_to_le64(x)
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/**
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* qdf_le16_to_cpu - Convert a 16-bit value from little-endian byte order
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* to CPU byte order
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*
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* @x: value to be converted
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*/
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#define qdf_le16_to_cpu(x) __qdf_le16_to_cpu(x)
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/**
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* qdf_le32_to_cpu - Convert a 32-bit value from little-endian byte
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* order to CPU byte order
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*
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* @x: value to be converted
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*/
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#define qdf_le32_to_cpu(x) __qdf_le32_to_cpu(x)
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/**
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* qdf_le64_to_cpu - Convert a 64-bit value from little-endian byte
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* order to CPU byte order
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*
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* @x: value to be converted
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*/
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#define qdf_le64_to_cpu(x) __qdf_le64_to_cpu(x)
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/**
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* qdf_cpu_to_be16 - Convert a 16-bit value from CPU byte order to
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* big-endian byte order
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*
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* @x: value to be converted
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*/
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#define qdf_cpu_to_be16(x) __qdf_cpu_to_be16(x)
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/**
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* qdf_cpu_to_be32 - Convert a 32-bit value from CPU byte order to
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* big-endian byte order
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*
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* @x: value to be converted
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*/
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#define qdf_cpu_to_be32(x) __qdf_cpu_to_be32(x)
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/**
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* qdf_cpu_to_be64 - Convert a 64-bit value from CPU byte order to
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* big-endian byte order
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*
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* @x: value to be converted
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*/
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#define qdf_cpu_to_be64(x) __qdf_cpu_to_be64(x)
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/**
|
|
* qdf_be16_to_cpu - Convert a 16-bit value from big-endian byte order
|
|
* to CPU byte order
|
|
*
|
|
* @x: value to be converted
|
|
*/
|
|
#define qdf_be16_to_cpu(x) __qdf_be16_to_cpu(x)
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|
|
|
/**
|
|
* qdf_be32_to_cpu - Convert a 32-bit value from big-endian byte order
|
|
* to CPU byte order
|
|
*
|
|
* @x: value to be converted
|
|
*/
|
|
#define qdf_be32_to_cpu(x) __qdf_be32_to_cpu(x)
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|
|
|
/**
|
|
* qdf_be64_to_cpu - Convert a 64-bit value from big-endian byte order
|
|
* to CPU byte order
|
|
*
|
|
* @x: value to be converted
|
|
*/
|
|
#define qdf_be64_to_cpu(x) __qdf_be64_to_cpu(x)
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|
|
|
/**
|
|
* qdf_function - replace with the name of the current function
|
|
*/
|
|
#define qdf_function __qdf_function
|
|
|
|
/**
|
|
* qdf_min - minimum of two numbers
|
|
*/
|
|
#define qdf_min(a, b) __qdf_min(a, b)
|
|
|
|
/**
|
|
* qdf_get_pwr2() - get next power of 2 integer from input value
|
|
* @value: input value to find next power of 2 integer
|
|
*
|
|
* Get next power of 2 integer from input value
|
|
*
|
|
* Return: Power of 2 integer
|
|
*/
|
|
static inline int qdf_get_pwr2(int value)
|
|
{
|
|
int log2;
|
|
|
|
if (QDF_IS_PWR2(value))
|
|
return value;
|
|
|
|
log2 = 0;
|
|
while (value) {
|
|
value >>= 1;
|
|
log2++;
|
|
}
|
|
return 1 << log2;
|
|
}
|
|
|
|
static inline
|
|
int qdf_get_cpu(void)
|
|
{
|
|
return __qdf_get_cpu();
|
|
}
|
|
|
|
/**
|
|
* qdf_device_init_wakeup() - allow a device to wake up the aps system
|
|
* @qdf_dev: the qdf device context
|
|
* @enable: enable/disable the device as a wakup source
|
|
*
|
|
* Return: 0 or errno
|
|
*/
|
|
static inline int qdf_device_init_wakeup(qdf_device_t qdf_dev, bool enable)
|
|
{
|
|
return __qdf_device_init_wakeup(qdf_dev, enable);
|
|
}
|
|
|
|
static inline
|
|
uint64_t qdf_get_totalramsize(void)
|
|
{
|
|
return __qdf_get_totalramsize();
|
|
}
|
|
|
|
/**
|
|
* qdf_get_lower_32_bits() - get lower 32 bits from an address.
|
|
* @addr: address
|
|
*
|
|
* This api returns the lower 32 bits of an address.
|
|
*
|
|
* Return: lower 32 bits.
|
|
*/
|
|
static inline
|
|
uint32_t qdf_get_lower_32_bits(qdf_dma_addr_t addr)
|
|
{
|
|
return __qdf_get_lower_32_bits(addr);
|
|
}
|
|
|
|
/**
|
|
* qdf_get_upper_32_bits() - get upper 32 bits from an address.
|
|
* @addr: address
|
|
*
|
|
* This api returns the upper 32 bits of an address.
|
|
*
|
|
* Return: upper 32 bits.
|
|
*/
|
|
static inline
|
|
uint32_t qdf_get_upper_32_bits(qdf_dma_addr_t addr)
|
|
{
|
|
return __qdf_get_upper_32_bits(addr);
|
|
}
|
|
|
|
/**
|
|
* qdf_rounddown_pow_of_two() - Round down to nearest power of two
|
|
* @n: number to be tested
|
|
*
|
|
* Test if the input number is power of two, and return the nearest power of two
|
|
*
|
|
* Return: number rounded down to the nearest power of two
|
|
*/
|
|
static inline
|
|
unsigned long qdf_rounddown_pow_of_two(unsigned long n)
|
|
{
|
|
return __qdf_rounddown_pow_of_two(n);
|
|
}
|
|
|
|
/**
|
|
* qdf_set_dma_coherent_mask() - set max number of bits allowed in dma addr
|
|
* @dev: device pointer
|
|
* @addr_bits: max number of bits allowed in dma address
|
|
*
|
|
* This API sets the maximum allowed number of bits in the dma address.
|
|
*
|
|
* Return: 0 - success, non zero - failure
|
|
*/
|
|
static inline
|
|
int qdf_set_dma_coherent_mask(struct device *dev, uint8_t addr_bits)
|
|
{
|
|
return __qdf_set_dma_coherent_mask(dev, addr_bits);
|
|
}
|
|
|
|
/**
|
|
* qdf_do_div() - wrapper function for kernel macro(do_div).
|
|
* @dividend: Dividend value
|
|
* @divisor : Divisor value
|
|
*
|
|
* Return: Quotient
|
|
*/
|
|
static inline
|
|
uint64_t qdf_do_div(uint64_t dividend, uint32_t divisor)
|
|
{
|
|
return __qdf_do_div(dividend, divisor);
|
|
}
|
|
|
|
/**
|
|
* qdf_get_random_bytes() - returns nbytes bytes of random
|
|
* data
|
|
*
|
|
* Return: random bytes of data
|
|
*/
|
|
static inline
|
|
void qdf_get_random_bytes(void *buf, int nbytes)
|
|
{
|
|
return __qdf_get_random_bytes(buf, nbytes);
|
|
}
|
|
|
|
/**
|
|
* qdf_register_fw_down_callback() - API to register fw down callback
|
|
*
|
|
* Return: none
|
|
*/
|
|
void qdf_register_fw_down_callback(qdf_fw_down_callback *fw_down_callback);
|
|
#endif /*_QDF_UTIL_H*/
|