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Based on 1 normalized pattern(s): 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 this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 24 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141334.606756275@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
121 lines
3.1 KiB
C
121 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/******************************************************************************
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AudioScience HPI driver
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Copyright (C) 1997-2014 AudioScience Inc. <support@audioscience.com>
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Hardware Programming Interface (HPI) Utility functions.
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(C) Copyright AudioScience Inc. 2007
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*******************************************************************************/
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#include "hpi_internal.h"
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#include "hpimsginit.h"
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#include <linux/nospec.h>
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/* The actual message size for each object type */
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static u16 msg_size[HPI_OBJ_MAXINDEX + 1] = HPI_MESSAGE_SIZE_BY_OBJECT;
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/* The actual response size for each object type */
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static u16 res_size[HPI_OBJ_MAXINDEX + 1] = HPI_RESPONSE_SIZE_BY_OBJECT;
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/* Flag to enable alternate message type for SSX2 bypass. */
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static u16 gwSSX2_bypass;
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/** \internal
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* initialize the HPI message structure
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*/
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static void hpi_init_message(struct hpi_message *phm, u16 object,
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u16 function)
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{
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u16 size;
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if ((object > 0) && (object <= HPI_OBJ_MAXINDEX)) {
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object = array_index_nospec(object, HPI_OBJ_MAXINDEX + 1);
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size = msg_size[object];
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} else {
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size = sizeof(*phm);
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}
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memset(phm, 0, size);
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phm->size = size;
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if (gwSSX2_bypass)
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phm->type = HPI_TYPE_SSX2BYPASS_MESSAGE;
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else
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phm->type = HPI_TYPE_REQUEST;
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phm->object = object;
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phm->function = function;
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phm->version = 0;
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phm->adapter_index = HPI_ADAPTER_INDEX_INVALID;
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/* Expect actual adapter index to be set by caller */
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}
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/** \internal
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* initialize the HPI response structure
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*/
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void hpi_init_response(struct hpi_response *phr, u16 object, u16 function,
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u16 error)
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{
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u16 size;
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if ((object > 0) && (object <= HPI_OBJ_MAXINDEX)) {
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object = array_index_nospec(object, HPI_OBJ_MAXINDEX + 1);
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size = res_size[object];
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} else {
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size = sizeof(*phr);
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}
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memset(phr, 0, sizeof(*phr));
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phr->size = size;
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phr->type = HPI_TYPE_RESPONSE;
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phr->object = object;
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phr->function = function;
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phr->error = error;
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phr->specific_error = 0;
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phr->version = 0;
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}
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void hpi_init_message_response(struct hpi_message *phm,
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struct hpi_response *phr, u16 object, u16 function)
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{
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hpi_init_message(phm, object, function);
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/* default error return if the response is
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not filled in by the callee */
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hpi_init_response(phr, object, function,
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HPI_ERROR_PROCESSING_MESSAGE);
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}
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static void hpi_init_messageV1(struct hpi_message_header *phm, u16 size,
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u16 object, u16 function)
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{
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memset(phm, 0, size);
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if ((object > 0) && (object <= HPI_OBJ_MAXINDEX)) {
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phm->size = size;
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phm->type = HPI_TYPE_REQUEST;
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phm->object = object;
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phm->function = function;
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phm->version = 1;
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/* Expect adapter index to be set by caller */
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}
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}
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void hpi_init_responseV1(struct hpi_response_header *phr, u16 size,
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u16 object, u16 function)
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{
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(void)object;
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(void)function;
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memset(phr, 0, size);
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phr->size = size;
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phr->version = 1;
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phr->type = HPI_TYPE_RESPONSE;
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phr->error = HPI_ERROR_PROCESSING_MESSAGE;
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}
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void hpi_init_message_responseV1(struct hpi_message_header *phm, u16 msg_size,
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struct hpi_response_header *phr, u16 res_size, u16 object,
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u16 function)
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{
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hpi_init_messageV1(phm, msg_size, object, function);
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hpi_init_responseV1(phr, res_size, object, function);
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}
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