linux/drivers/char/mwave/tp3780i.h
Yang Li f6d706dd9b char/mwave: turn tp3780I_Cleanup() into void function
This function always return '0' and no callers use the return value.
So make it a void function.

This eliminates the following coccicheck warning:
./drivers/char/mwave/tp3780i.c:182:5-11: Unneeded variable: "retval".
Return "0" on line 187

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Link: https://lore.kernel.org/r/1615366834-20545-1-git-send-email-yang.lee@linux.alibaba.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-24 08:26:30 +01:00

104 lines
4.3 KiB
C

/*
*
* tp3780i.h -- declarations for tp3780i.c
*
*
* Written By: Mike Sullivan IBM Corporation
*
* Copyright (C) 1999 IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*
* NO WARRANTY
* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
* solely responsible for determining the appropriateness of using and
* distributing the Program and assumes all risks associated with its
* exercise of rights under this Agreement, including but not limited to
* the risks and costs of program errors, damage to or loss of data,
* programs or equipment, and unavailability or interruption of operations.
*
* DISCLAIMER OF LIABILITY
* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
*
* 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
*
*
* 10/23/2000 - Alpha Release
* First release to the public
*/
#ifndef _LINUX_TP3780I_H
#define _LINUX_TP3780I_H
#include <asm/io.h>
#include "mwavepub.h"
/* DSP abilities constants for 3780i based Thinkpads */
#define TP_ABILITIES_INTS_PER_SEC 39160800
#define TP_ABILITIES_DATA_SIZE 32768
#define TP_ABILITIES_INST_SIZE 32768
#define TP_ABILITIES_MWAVEOS_NAME "mwaveos0700.dsp"
#define TP_ABILITIES_BIOSTASK_NAME "mwbio701.dsp"
/* DSP configuration values for 3780i based Thinkpads */
#define TP_CFG_NumTransfers 3 /* 16 transfers */
#define TP_CFG_RerequestTimer 1 /* 2 usec */
#define TP_CFG_MEMCS16 0 /* Disabled, 16-bit memory assumed */
#define TP_CFG_IsaMemCmdWidth 3 /* 295 nsec (16-bit) */
#define TP_CFG_GateIOCHRDY 0 /* No IOCHRDY gating */
#define TP_CFG_EnablePwrMgmt 1 /* Enable low poser suspend/resume */
#define TP_CFG_HBusTimerValue 255 /* HBus timer load value */
#define TP_CFG_DisableLBusTimeout 0 /* Enable LBus timeout */
#define TP_CFG_N_Divisor 32 /* Clock = 39.1608 Mhz */
#define TP_CFG_M_Multiplier 37 /* " */
#define TP_CFG_PllBypass 0 /* don't bypass */
#define TP_CFG_ChipletEnable 0xFFFF /* Enable all chiplets */
typedef struct {
int bDSPEnabled;
int bShareDspIrq;
int bShareUartIrq;
DSP_3780I_CONFIG_SETTINGS rDspSettings;
} THINKPAD_BD_DATA;
int tp3780I_InitializeBoardData(THINKPAD_BD_DATA * pBDData);
int tp3780I_CalcResources(THINKPAD_BD_DATA * pBDData);
int tp3780I_ClaimResources(THINKPAD_BD_DATA * pBDData);
int tp3780I_ReleaseResources(THINKPAD_BD_DATA * pBDData);
int tp3780I_EnableDSP(THINKPAD_BD_DATA * pBDData);
int tp3780I_DisableDSP(THINKPAD_BD_DATA * pBDData);
int tp3780I_ResetDSP(THINKPAD_BD_DATA * pBDData);
int tp3780I_StartDSP(THINKPAD_BD_DATA * pBDData);
int tp3780I_QueryAbilities(THINKPAD_BD_DATA * pBDData, MW_ABILITIES * pAbilities);
void tp3780I_Cleanup(THINKPAD_BD_DATA *pBDData);
int tp3780I_ReadWriteDspDStore(THINKPAD_BD_DATA * pBDData, unsigned int uOpcode,
void __user *pvBuffer, unsigned int uCount,
unsigned long ulDSPAddr);
int tp3780I_ReadWriteDspIStore(THINKPAD_BD_DATA * pBDData, unsigned int uOpcode,
void __user *pvBuffer, unsigned int uCount,
unsigned long ulDSPAddr);
#endif