| /* |
| * Copyright (c) 2011 The Linux Foundation. All rights reserved. |
| * |
| * Previously licensed under the ISC license by Qualcomm Atheros, Inc. |
| * |
| * |
| * Permission to use, copy, modify, and/or distribute this software for |
| * any purpose with or without fee is hereby granted, provided that the |
| * above copyright notice and this permission notice appear in all |
| * copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| * PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| /* |
| * This file was originally distributed by Qualcomm Atheros, Inc. |
| * under proprietary terms before Copyright ownership was assigned |
| * to the Linux Foundation. |
| */ |
| |
| |
| |
| /** |
| * @ingroup adf_os_public |
| * @file adf_os_bitops.h |
| * This file abstracts bit-level operations on a stream of bytes. |
| */ |
| |
| #ifndef _ADF_OS_BITOPS_H |
| #define _ADF_OS_BITOPS_H |
| |
| #include <adf_os_types.h> |
| |
| /** |
| * @brief Set a bit atomically |
| * @param[in] nr Bit to change |
| * @param[in] addr Address to start counting from |
| * |
| * @note its atomic and cannot be re-ordered. |
| * Note that nr may be almost arbitrarily large; this function is not |
| * restricted to acting on a single-word quantity. |
| */ |
| static inline void adf_os_set_bit_a(a_uint32_t nr, volatile a_uint32_t *addr) |
| { |
| __adf_os_set_bit_a(nr, addr); |
| } |
| |
| /** |
| * @brief Set a bit |
| * @param[in] nr Bit to change |
| * @param[in] addr Address to start counting from |
| * |
| * @note its not atomic and can be re-ordered. |
| * Note that nr may be almost arbitrarily large; this function is not |
| * restricted to acting on a single-word quantity. |
| */ |
| static inline void adf_os_set_bit(a_uint32_t nr, volatile a_uint32_t *addr) |
| { |
| __adf_os_set_bit(nr, addr); |
| } |
| |
| /** |
| * @brief Clear a bit atomically |
| * @param[in] nr Bit to change |
| * @param[in] addr Address to start counting from |
| * |
| * @note its atomic and cannot be re-ordered. |
| * Note that nr may be almost arbitrarily large; this function is not |
| * restricted to acting on a single-word quantity. |
| */ |
| static inline void adf_os_clear_bit_a(a_uint32_t nr, volatile a_uint32_t *addr) |
| { |
| __adf_os_clear_bit_a(nr, addr); |
| } |
| |
| /** |
| * @brief Clear a bit |
| * @param[in] nr Bit to change |
| * @param[in] addr Address to start counting from |
| * |
| * @note its not atomic and can be re-ordered. |
| * Note that nr may be almost arbitrarily large; this function is not |
| * restricted to acting on a single-word quantity. |
| */ |
| static inline void adf_os_clear_bit(a_uint32_t nr, volatile a_uint32_t *addr) |
| { |
| __adf_os_clear_bit(nr, addr); |
| } |
| |
| /** |
| * @brief Toggle a bit atomically |
| * @param[in] nr Bit to change |
| * @param[in] addr Address to start counting from |
| * |
| * @note its atomic and cannot be re-ordered. |
| * Note that nr may be almost arbitrarily large; this function is not |
| * restricted to acting on a single-word quantity. |
| */ |
| static inline void adf_os_change_bit_a(a_uint32_t nr, volatile a_uint32_t *addr) |
| { |
| __adf_os_change_bit_a(nr, addr); |
| } |
| |
| /** |
| * @brief Toggle a bit |
| * @param[in] nr Bit to change |
| * @param[in] addr Address to start counting from |
| * |
| * @note its not atomic and can be re-ordered. |
| * Note that nr may be almost arbitrarily large; this function is not |
| * restricted to acting on a single-word quantity. |
| */ |
| static inline void adf_os_change_bit(a_uint32_t nr, volatile a_uint32_t *addr) |
| { |
| __adf_os_change_bit(nr, addr); |
| } |
| |
| /** |
| * @brief Test and Set a bit atomically |
| * @param[in] nr Bit to set |
| * @param[in] addr Address to start counting from |
| * |
| * @note its atomic and cannot be re-ordered. |
| * Note that nr may be almost arbitrarily large; this function is not |
| * restricted to acting on a single-word quantity. |
| */ |
| static inline void adf_os_test_and_set_bit_a(a_uint32_t nr, |
| volatile a_uint32_t *addr) |
| { |
| __adf_os_test_and_set_bit_a(nr, addr); |
| } |
| |
| /** |
| * @brief Test and Set a bit |
| * @param[in] nr Bit to set |
| * @param[in] addr Address to start counting from |
| * |
| * @note its not atomic and can be re-ordered. |
| * Note that nr may be almost arbitrarily large; this function is not |
| * restricted to acting on a single-word quantity. |
| */ |
| static inline void adf_os_test_and_set_bit(a_uint32_t nr, |
| volatile a_uint32_t *addr) |
| { |
| __adf_os_test_and_set_bit(nr, addr); |
| } |
| |
| /** |
| * @brief Test and clear a bit atomically |
| * @param[in] nr Bit to set |
| * @param[in] addr Address to start counting from |
| * |
| * @note its atomic and cannot be re-ordered. |
| * Note that nr may be almost arbitrarily large; this function is not |
| * restricted to acting on a single-word quantity. |
| */ |
| static inline void adf_os_test_and_clear_bit_a(a_uint32_t nr, |
| volatile a_uint32_t *addr) |
| { |
| __adf_os_test_and_clear_bit_a(nr, addr); |
| } |
| |
| /** |
| * @brief Test and clear a bit |
| * @param[in] nr Bit to set |
| * @param[in] addr Address to start counting from |
| * |
| * @note its not atomic and can be re-ordered. |
| * Note that nr may be almost arbitrarily large; this function is not |
| * restricted to acting on a single-word quantity. |
| */ |
| static inline void adf_os_test_and_clear_bit(a_uint32_t nr, |
| volatile a_uint32_t *addr) |
| { |
| __adf_os_test_and_clear_bit(nr, addr); |
| } |
| |
| /** |
| * @brief Test and change a bit atomically |
| * @param[in] nr Bit to set |
| * @param[in] addr Address to start counting from |
| * |
| * @note its atomic and cannot be re-ordered. |
| * Note that nr may be almost arbitrarily large; this function is not |
| * restricted to acting on a single-word quantity. |
| */ |
| static inline void adf_os_test_and_change_bit_a(a_uint32_t nr, |
| volatile a_uint32_t *addr) |
| { |
| __adf_os_test_and_change_bit_a(nr, addr); |
| } |
| |
| /** |
| * @brief Test and clear a bit |
| * @param[in] nr Bit to set |
| * @param[in] addr Address to start counting from |
| * |
| * @note its not atomic and can be re-ordered. |
| * Note that nr may be almost arbitrarily large; this function is not |
| * restricted to acting on a single-word quantity. |
| */ |
| static inline void adf_os_test_and_change_bit(a_uint32_t nr, |
| volatile a_uint32_t *addr) |
| { |
| __adf_os_test_and_change_bit(nr, addr); |
| } |
| |
| /** |
| * @brief test_bit - Determine whether a bit is set |
| * @param[in] nr bit number to test |
| * @param[in] addr Address to start counting from |
| * |
| * @return 1 if set, 0 if not |
| */ |
| static inline int adf_os_test_bit(a_uint32_t nr, volatile a_uint32_t *addr) |
| { |
| __adf_os_test_bit(nr, addr); |
| } |
| |
| |
| #endif /**_AOD_BITOPS_H*/ |