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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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ae6b95d4d8
Flags from spin_lock_irqsave() are saved into global variable and restored from it. My gut feeling this is very racy. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
741 lines
21 KiB
C
741 lines
21 KiB
C
/*
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*
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* 3780i.c -- helper routines for the 3780i DSP
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*
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*
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* Written By: Mike Sullivan IBM Corporation
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*
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* Copyright (C) 1999 IBM Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* NO WARRANTY
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* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
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* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
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* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
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* solely responsible for determining the appropriateness of using and
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* distributing the Program and assumes all risks associated with its
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* exercise of rights under this Agreement, including but not limited to
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* the risks and costs of program errors, damage to or loss of data,
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* programs or equipment, and unavailability or interruption of operations.
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*
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* DISCLAIMER OF LIABILITY
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* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
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* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*
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* 10/23/2000 - Alpha Release
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* First release to the public
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*/
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#include <linux/kernel.h>
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#include <linux/unistd.h>
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#include <linux/delay.h>
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#include <linux/ioport.h>
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#include <linux/init.h>
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#include <linux/bitops.h>
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#include <linux/sched.h> /* cond_resched() */
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#include <asm/io.h>
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#include <asm/uaccess.h>
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#include <asm/system.h>
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#include <asm/irq.h>
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#include "smapi.h"
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#include "mwavedd.h"
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#include "3780i.h"
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static DEFINE_SPINLOCK(dsp_lock);
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static void PaceMsaAccess(unsigned short usDspBaseIO)
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{
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cond_resched();
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udelay(100);
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cond_resched();
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}
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unsigned short dsp3780I_ReadMsaCfg(unsigned short usDspBaseIO,
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unsigned long ulMsaAddr)
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{
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unsigned long flags;
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unsigned short val;
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PRINTK_3(TRACE_3780I,
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"3780i::dsp3780I_ReadMsaCfg entry usDspBaseIO %x ulMsaAddr %lx\n",
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usDspBaseIO, ulMsaAddr);
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spin_lock_irqsave(&dsp_lock, flags);
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OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulMsaAddr);
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OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulMsaAddr >> 16));
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val = InWordDsp(DSP_MsaDataDSISHigh);
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spin_unlock_irqrestore(&dsp_lock, flags);
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PRINTK_2(TRACE_3780I, "3780i::dsp3780I_ReadMsaCfg exit val %x\n", val);
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return val;
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}
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void dsp3780I_WriteMsaCfg(unsigned short usDspBaseIO,
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unsigned long ulMsaAddr, unsigned short usValue)
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{
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unsigned long flags;
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PRINTK_4(TRACE_3780I,
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"3780i::dsp3780i_WriteMsaCfg entry usDspBaseIO %x ulMsaAddr %lx usValue %x\n",
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usDspBaseIO, ulMsaAddr, usValue);
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spin_lock_irqsave(&dsp_lock, flags);
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OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulMsaAddr);
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OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulMsaAddr >> 16));
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OutWordDsp(DSP_MsaDataDSISHigh, usValue);
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spin_unlock_irqrestore(&dsp_lock, flags);
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}
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static void dsp3780I_WriteGenCfg(unsigned short usDspBaseIO, unsigned uIndex,
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unsigned char ucValue)
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{
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DSP_ISA_SLAVE_CONTROL rSlaveControl;
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DSP_ISA_SLAVE_CONTROL rSlaveControl_Save;
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PRINTK_4(TRACE_3780I,
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"3780i::dsp3780i_WriteGenCfg entry usDspBaseIO %x uIndex %x ucValue %x\n",
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usDspBaseIO, uIndex, ucValue);
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MKBYTE(rSlaveControl) = InByteDsp(DSP_IsaSlaveControl);
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PRINTK_2(TRACE_3780I,
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"3780i::dsp3780i_WriteGenCfg rSlaveControl %x\n",
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MKBYTE(rSlaveControl));
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rSlaveControl_Save = rSlaveControl;
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rSlaveControl.ConfigMode = TRUE;
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PRINTK_2(TRACE_3780I,
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"3780i::dsp3780i_WriteGenCfg entry rSlaveControl+ConfigMode %x\n",
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MKBYTE(rSlaveControl));
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OutByteDsp(DSP_IsaSlaveControl, MKBYTE(rSlaveControl));
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OutByteDsp(DSP_ConfigAddress, (unsigned char) uIndex);
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OutByteDsp(DSP_ConfigData, ucValue);
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OutByteDsp(DSP_IsaSlaveControl, MKBYTE(rSlaveControl_Save));
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PRINTK_1(TRACE_3780I, "3780i::dsp3780i_WriteGenCfg exit\n");
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}
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#if 0
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unsigned char dsp3780I_ReadGenCfg(unsigned short usDspBaseIO,
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unsigned uIndex)
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{
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DSP_ISA_SLAVE_CONTROL rSlaveControl;
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DSP_ISA_SLAVE_CONTROL rSlaveControl_Save;
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unsigned char ucValue;
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PRINTK_3(TRACE_3780I,
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"3780i::dsp3780i_ReadGenCfg entry usDspBaseIO %x uIndex %x\n",
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usDspBaseIO, uIndex);
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MKBYTE(rSlaveControl) = InByteDsp(DSP_IsaSlaveControl);
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rSlaveControl_Save = rSlaveControl;
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rSlaveControl.ConfigMode = TRUE;
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OutByteDsp(DSP_IsaSlaveControl, MKBYTE(rSlaveControl));
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OutByteDsp(DSP_ConfigAddress, (unsigned char) uIndex);
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ucValue = InByteDsp(DSP_ConfigData);
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OutByteDsp(DSP_IsaSlaveControl, MKBYTE(rSlaveControl_Save));
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PRINTK_2(TRACE_3780I,
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"3780i::dsp3780i_ReadGenCfg exit ucValue %x\n", ucValue);
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return ucValue;
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}
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#endif /* 0 */
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int dsp3780I_EnableDSP(DSP_3780I_CONFIG_SETTINGS * pSettings,
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unsigned short *pIrqMap,
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unsigned short *pDmaMap)
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{
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unsigned long flags;
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unsigned short usDspBaseIO = pSettings->usDspBaseIO;
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int i;
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DSP_UART_CFG_1 rUartCfg1;
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DSP_UART_CFG_2 rUartCfg2;
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DSP_HBRIDGE_CFG_1 rHBridgeCfg1;
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DSP_HBRIDGE_CFG_2 rHBridgeCfg2;
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DSP_BUSMASTER_CFG_1 rBusmasterCfg1;
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DSP_BUSMASTER_CFG_2 rBusmasterCfg2;
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DSP_ISA_PROT_CFG rIsaProtCfg;
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DSP_POWER_MGMT_CFG rPowerMgmtCfg;
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DSP_HBUS_TIMER_CFG rHBusTimerCfg;
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DSP_LBUS_TIMEOUT_DISABLE rLBusTimeoutDisable;
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DSP_CHIP_RESET rChipReset;
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DSP_CLOCK_CONTROL_1 rClockControl1;
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DSP_CLOCK_CONTROL_2 rClockControl2;
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DSP_ISA_SLAVE_CONTROL rSlaveControl;
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DSP_HBRIDGE_CONTROL rHBridgeControl;
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unsigned short ChipID = 0;
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unsigned short tval;
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PRINTK_2(TRACE_3780I,
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"3780i::dsp3780I_EnableDSP entry pSettings->bDSPEnabled %x\n",
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pSettings->bDSPEnabled);
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if (!pSettings->bDSPEnabled) {
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PRINTK_ERROR( KERN_ERR "3780i::dsp3780I_EnableDSP: Error: DSP not enabled. Aborting.\n" );
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return -EIO;
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}
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PRINTK_2(TRACE_3780I,
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"3780i::dsp3780i_EnableDSP entry pSettings->bModemEnabled %x\n",
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pSettings->bModemEnabled);
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if (pSettings->bModemEnabled) {
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rUartCfg1.Reserved = rUartCfg2.Reserved = 0;
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rUartCfg1.IrqActiveLow = pSettings->bUartIrqActiveLow;
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rUartCfg1.IrqPulse = pSettings->bUartIrqPulse;
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rUartCfg1.Irq =
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(unsigned char) pIrqMap[pSettings->usUartIrq];
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switch (pSettings->usUartBaseIO) {
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case 0x03F8:
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rUartCfg1.BaseIO = 0;
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break;
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case 0x02F8:
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rUartCfg1.BaseIO = 1;
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break;
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case 0x03E8:
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rUartCfg1.BaseIO = 2;
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break;
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case 0x02E8:
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rUartCfg1.BaseIO = 3;
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break;
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}
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rUartCfg2.Enable = TRUE;
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}
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rHBridgeCfg1.Reserved = rHBridgeCfg2.Reserved = 0;
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rHBridgeCfg1.IrqActiveLow = pSettings->bDspIrqActiveLow;
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rHBridgeCfg1.IrqPulse = pSettings->bDspIrqPulse;
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rHBridgeCfg1.Irq = (unsigned char) pIrqMap[pSettings->usDspIrq];
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rHBridgeCfg1.AccessMode = 1;
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rHBridgeCfg2.Enable = TRUE;
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rBusmasterCfg2.Reserved = 0;
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rBusmasterCfg1.Dma = (unsigned char) pDmaMap[pSettings->usDspDma];
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rBusmasterCfg1.NumTransfers =
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(unsigned char) pSettings->usNumTransfers;
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rBusmasterCfg1.ReRequest = (unsigned char) pSettings->usReRequest;
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rBusmasterCfg1.MEMCS16 = pSettings->bEnableMEMCS16;
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rBusmasterCfg2.IsaMemCmdWidth =
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(unsigned char) pSettings->usIsaMemCmdWidth;
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rIsaProtCfg.Reserved = 0;
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rIsaProtCfg.GateIOCHRDY = pSettings->bGateIOCHRDY;
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rPowerMgmtCfg.Reserved = 0;
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rPowerMgmtCfg.Enable = pSettings->bEnablePwrMgmt;
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rHBusTimerCfg.LoadValue =
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(unsigned char) pSettings->usHBusTimerLoadValue;
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rLBusTimeoutDisable.Reserved = 0;
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rLBusTimeoutDisable.DisableTimeout =
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pSettings->bDisableLBusTimeout;
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MKWORD(rChipReset) = ~pSettings->usChipletEnable;
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rClockControl1.Reserved1 = rClockControl1.Reserved2 = 0;
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rClockControl1.N_Divisor = pSettings->usN_Divisor;
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rClockControl1.M_Multiplier = pSettings->usM_Multiplier;
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rClockControl2.Reserved = 0;
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rClockControl2.PllBypass = pSettings->bPllBypass;
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/* Issue a soft reset to the chip */
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/* Note: Since we may be coming in with 3780i clocks suspended, we must keep
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* soft-reset active for 10ms.
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*/
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rSlaveControl.ClockControl = 0;
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rSlaveControl.SoftReset = TRUE;
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rSlaveControl.ConfigMode = FALSE;
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rSlaveControl.Reserved = 0;
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PRINTK_4(TRACE_3780I,
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"3780i::dsp3780i_EnableDSP usDspBaseIO %x index %x taddr %x\n",
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usDspBaseIO, DSP_IsaSlaveControl,
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usDspBaseIO + DSP_IsaSlaveControl);
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PRINTK_2(TRACE_3780I,
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"3780i::dsp3780i_EnableDSP rSlaveContrl %x\n",
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MKWORD(rSlaveControl));
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spin_lock_irqsave(&dsp_lock, flags);
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OutWordDsp(DSP_IsaSlaveControl, MKWORD(rSlaveControl));
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MKWORD(tval) = InWordDsp(DSP_IsaSlaveControl);
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PRINTK_2(TRACE_3780I,
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"3780i::dsp3780i_EnableDSP rSlaveControl 2 %x\n", tval);
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for (i = 0; i < 11; i++)
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udelay(2000);
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rSlaveControl.SoftReset = FALSE;
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OutWordDsp(DSP_IsaSlaveControl, MKWORD(rSlaveControl));
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MKWORD(tval) = InWordDsp(DSP_IsaSlaveControl);
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PRINTK_2(TRACE_3780I,
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"3780i::dsp3780i_EnableDSP rSlaveControl 3 %x\n", tval);
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/* Program our general configuration registers */
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WriteGenCfg(DSP_HBridgeCfg1Index, MKBYTE(rHBridgeCfg1));
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WriteGenCfg(DSP_HBridgeCfg2Index, MKBYTE(rHBridgeCfg2));
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WriteGenCfg(DSP_BusMasterCfg1Index, MKBYTE(rBusmasterCfg1));
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WriteGenCfg(DSP_BusMasterCfg2Index, MKBYTE(rBusmasterCfg2));
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WriteGenCfg(DSP_IsaProtCfgIndex, MKBYTE(rIsaProtCfg));
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WriteGenCfg(DSP_PowerMgCfgIndex, MKBYTE(rPowerMgmtCfg));
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WriteGenCfg(DSP_HBusTimerCfgIndex, MKBYTE(rHBusTimerCfg));
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if (pSettings->bModemEnabled) {
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WriteGenCfg(DSP_UartCfg1Index, MKBYTE(rUartCfg1));
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WriteGenCfg(DSP_UartCfg2Index, MKBYTE(rUartCfg2));
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}
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rHBridgeControl.EnableDspInt = FALSE;
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rHBridgeControl.MemAutoInc = TRUE;
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rHBridgeControl.IoAutoInc = FALSE;
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rHBridgeControl.DiagnosticMode = FALSE;
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PRINTK_3(TRACE_3780I,
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"3780i::dsp3780i_EnableDSP DSP_HBridgeControl %x rHBridgeControl %x\n",
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DSP_HBridgeControl, MKWORD(rHBridgeControl));
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OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
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spin_unlock_irqrestore(&dsp_lock, flags);
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WriteMsaCfg(DSP_LBusTimeoutDisable, MKWORD(rLBusTimeoutDisable));
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WriteMsaCfg(DSP_ClockControl_1, MKWORD(rClockControl1));
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WriteMsaCfg(DSP_ClockControl_2, MKWORD(rClockControl2));
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WriteMsaCfg(DSP_ChipReset, MKWORD(rChipReset));
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ChipID = ReadMsaCfg(DSP_ChipID);
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PRINTK_2(TRACE_3780I,
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"3780i::dsp3780I_EnableDSP exiting bRC=TRUE, ChipID %x\n",
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ChipID);
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return 0;
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}
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int dsp3780I_DisableDSP(DSP_3780I_CONFIG_SETTINGS * pSettings)
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{
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unsigned long flags;
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unsigned short usDspBaseIO = pSettings->usDspBaseIO;
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DSP_ISA_SLAVE_CONTROL rSlaveControl;
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PRINTK_1(TRACE_3780I, "3780i::dsp3780i_DisableDSP entry\n");
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rSlaveControl.ClockControl = 0;
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rSlaveControl.SoftReset = TRUE;
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rSlaveControl.ConfigMode = FALSE;
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rSlaveControl.Reserved = 0;
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spin_lock_irqsave(&dsp_lock, flags);
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OutWordDsp(DSP_IsaSlaveControl, MKWORD(rSlaveControl));
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udelay(5);
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rSlaveControl.ClockControl = 1;
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OutWordDsp(DSP_IsaSlaveControl, MKWORD(rSlaveControl));
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spin_unlock_irqrestore(&dsp_lock, flags);
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udelay(5);
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PRINTK_1(TRACE_3780I, "3780i::dsp3780i_DisableDSP exit\n");
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return 0;
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}
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int dsp3780I_Reset(DSP_3780I_CONFIG_SETTINGS * pSettings)
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{
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unsigned long flags;
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unsigned short usDspBaseIO = pSettings->usDspBaseIO;
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DSP_BOOT_DOMAIN rBootDomain;
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DSP_HBRIDGE_CONTROL rHBridgeControl;
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PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Reset entry\n");
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spin_lock_irqsave(&dsp_lock, flags);
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/* Mask DSP to PC interrupt */
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MKWORD(rHBridgeControl) = InWordDsp(DSP_HBridgeControl);
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PRINTK_2(TRACE_3780I, "3780i::dsp3780i_Reset rHBridgeControl %x\n",
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MKWORD(rHBridgeControl));
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rHBridgeControl.EnableDspInt = FALSE;
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OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
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spin_unlock_irqrestore(&dsp_lock, flags);
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/* Reset the core via the boot domain register */
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rBootDomain.ResetCore = TRUE;
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rBootDomain.Halt = TRUE;
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rBootDomain.NMI = TRUE;
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rBootDomain.Reserved = 0;
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PRINTK_2(TRACE_3780I, "3780i::dsp3780i_Reset rBootDomain %x\n",
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MKWORD(rBootDomain));
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WriteMsaCfg(DSP_MspBootDomain, MKWORD(rBootDomain));
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/* Reset all the chiplets and then reactivate them */
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WriteMsaCfg(DSP_ChipReset, 0xFFFF);
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udelay(5);
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WriteMsaCfg(DSP_ChipReset,
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(unsigned short) (~pSettings->usChipletEnable));
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PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Reset exit bRC=0\n");
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return 0;
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}
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int dsp3780I_Run(DSP_3780I_CONFIG_SETTINGS * pSettings)
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{
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unsigned long flags;
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unsigned short usDspBaseIO = pSettings->usDspBaseIO;
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DSP_BOOT_DOMAIN rBootDomain;
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DSP_HBRIDGE_CONTROL rHBridgeControl;
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PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Run entry\n");
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/* Transition the core to a running state */
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rBootDomain.ResetCore = TRUE;
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rBootDomain.Halt = FALSE;
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rBootDomain.NMI = TRUE;
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rBootDomain.Reserved = 0;
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WriteMsaCfg(DSP_MspBootDomain, MKWORD(rBootDomain));
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udelay(5);
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rBootDomain.ResetCore = FALSE;
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WriteMsaCfg(DSP_MspBootDomain, MKWORD(rBootDomain));
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udelay(5);
|
|
|
|
rBootDomain.NMI = FALSE;
|
|
WriteMsaCfg(DSP_MspBootDomain, MKWORD(rBootDomain));
|
|
udelay(5);
|
|
|
|
/* Enable DSP to PC interrupt */
|
|
spin_lock_irqsave(&dsp_lock, flags);
|
|
MKWORD(rHBridgeControl) = InWordDsp(DSP_HBridgeControl);
|
|
rHBridgeControl.EnableDspInt = TRUE;
|
|
|
|
PRINTK_2(TRACE_3780I, "3780i::dsp3780i_Run rHBridgeControl %x\n",
|
|
MKWORD(rHBridgeControl));
|
|
|
|
OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
|
|
spin_unlock_irqrestore(&dsp_lock, flags);
|
|
|
|
|
|
PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Run exit bRC=TRUE\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int dsp3780I_ReadDStore(unsigned short usDspBaseIO, void __user *pvBuffer,
|
|
unsigned uCount, unsigned long ulDSPAddr)
|
|
{
|
|
unsigned long flags;
|
|
unsigned short __user *pusBuffer = pvBuffer;
|
|
unsigned short val;
|
|
|
|
|
|
PRINTK_5(TRACE_3780I,
|
|
"3780i::dsp3780I_ReadDStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
|
|
usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
|
|
|
|
|
|
/* Set the initial MSA address. No adjustments need to be made to data store addresses */
|
|
spin_lock_irqsave(&dsp_lock, flags);
|
|
OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
|
|
OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
|
|
spin_unlock_irqrestore(&dsp_lock, flags);
|
|
|
|
/* Transfer the memory block */
|
|
while (uCount-- != 0) {
|
|
spin_lock_irqsave(&dsp_lock, flags);
|
|
val = InWordDsp(DSP_MsaDataDSISHigh);
|
|
spin_unlock_irqrestore(&dsp_lock, flags);
|
|
if(put_user(val, pusBuffer++))
|
|
return -EFAULT;
|
|
|
|
PRINTK_3(TRACE_3780I,
|
|
"3780I::dsp3780I_ReadDStore uCount %x val %x\n",
|
|
uCount, val);
|
|
|
|
PaceMsaAccess(usDspBaseIO);
|
|
}
|
|
|
|
|
|
PRINTK_1(TRACE_3780I,
|
|
"3780I::dsp3780I_ReadDStore exit bRC=TRUE\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
int dsp3780I_ReadAndClearDStore(unsigned short usDspBaseIO,
|
|
void __user *pvBuffer, unsigned uCount,
|
|
unsigned long ulDSPAddr)
|
|
{
|
|
unsigned long flags;
|
|
unsigned short __user *pusBuffer = pvBuffer;
|
|
unsigned short val;
|
|
|
|
|
|
PRINTK_5(TRACE_3780I,
|
|
"3780i::dsp3780I_ReadAndDStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
|
|
usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
|
|
|
|
|
|
/* Set the initial MSA address. No adjustments need to be made to data store addresses */
|
|
spin_lock_irqsave(&dsp_lock, flags);
|
|
OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
|
|
OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
|
|
spin_unlock_irqrestore(&dsp_lock, flags);
|
|
|
|
/* Transfer the memory block */
|
|
while (uCount-- != 0) {
|
|
spin_lock_irqsave(&dsp_lock, flags);
|
|
val = InWordDsp(DSP_ReadAndClear);
|
|
spin_unlock_irqrestore(&dsp_lock, flags);
|
|
if(put_user(val, pusBuffer++))
|
|
return -EFAULT;
|
|
|
|
PRINTK_3(TRACE_3780I,
|
|
"3780I::dsp3780I_ReadAndCleanDStore uCount %x val %x\n",
|
|
uCount, val);
|
|
|
|
PaceMsaAccess(usDspBaseIO);
|
|
}
|
|
|
|
|
|
PRINTK_1(TRACE_3780I,
|
|
"3780I::dsp3780I_ReadAndClearDStore exit bRC=TRUE\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int dsp3780I_WriteDStore(unsigned short usDspBaseIO, void __user *pvBuffer,
|
|
unsigned uCount, unsigned long ulDSPAddr)
|
|
{
|
|
unsigned long flags;
|
|
unsigned short __user *pusBuffer = pvBuffer;
|
|
|
|
|
|
PRINTK_5(TRACE_3780I,
|
|
"3780i::dsp3780D_WriteDStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
|
|
usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
|
|
|
|
|
|
/* Set the initial MSA address. No adjustments need to be made to data store addresses */
|
|
spin_lock_irqsave(&dsp_lock, flags);
|
|
OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
|
|
OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
|
|
spin_unlock_irqrestore(&dsp_lock, flags);
|
|
|
|
/* Transfer the memory block */
|
|
while (uCount-- != 0) {
|
|
unsigned short val;
|
|
if(get_user(val, pusBuffer++))
|
|
return -EFAULT;
|
|
spin_lock_irqsave(&dsp_lock, flags);
|
|
OutWordDsp(DSP_MsaDataDSISHigh, val);
|
|
spin_unlock_irqrestore(&dsp_lock, flags);
|
|
|
|
PRINTK_3(TRACE_3780I,
|
|
"3780I::dsp3780I_WriteDStore uCount %x val %x\n",
|
|
uCount, val);
|
|
|
|
PaceMsaAccess(usDspBaseIO);
|
|
}
|
|
|
|
|
|
PRINTK_1(TRACE_3780I,
|
|
"3780I::dsp3780D_WriteDStore exit bRC=TRUE\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int dsp3780I_ReadIStore(unsigned short usDspBaseIO, void __user *pvBuffer,
|
|
unsigned uCount, unsigned long ulDSPAddr)
|
|
{
|
|
unsigned long flags;
|
|
unsigned short __user *pusBuffer = pvBuffer;
|
|
|
|
PRINTK_5(TRACE_3780I,
|
|
"3780i::dsp3780I_ReadIStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
|
|
usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
|
|
|
|
/*
|
|
* Set the initial MSA address. To convert from an instruction store
|
|
* address to an MSA address
|
|
* shift the address two bits to the left and set bit 22
|
|
*/
|
|
ulDSPAddr = (ulDSPAddr << 2) | (1 << 22);
|
|
spin_lock_irqsave(&dsp_lock, flags);
|
|
OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
|
|
OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
|
|
spin_unlock_irqrestore(&dsp_lock, flags);
|
|
|
|
/* Transfer the memory block */
|
|
while (uCount-- != 0) {
|
|
unsigned short val_lo, val_hi;
|
|
spin_lock_irqsave(&dsp_lock, flags);
|
|
val_lo = InWordDsp(DSP_MsaDataISLow);
|
|
val_hi = InWordDsp(DSP_MsaDataDSISHigh);
|
|
spin_unlock_irqrestore(&dsp_lock, flags);
|
|
if(put_user(val_lo, pusBuffer++))
|
|
return -EFAULT;
|
|
if(put_user(val_hi, pusBuffer++))
|
|
return -EFAULT;
|
|
|
|
PRINTK_4(TRACE_3780I,
|
|
"3780I::dsp3780I_ReadIStore uCount %x val_lo %x val_hi %x\n",
|
|
uCount, val_lo, val_hi);
|
|
|
|
PaceMsaAccess(usDspBaseIO);
|
|
|
|
}
|
|
|
|
PRINTK_1(TRACE_3780I,
|
|
"3780I::dsp3780I_ReadIStore exit bRC=TRUE\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int dsp3780I_WriteIStore(unsigned short usDspBaseIO, void __user *pvBuffer,
|
|
unsigned uCount, unsigned long ulDSPAddr)
|
|
{
|
|
unsigned long flags;
|
|
unsigned short __user *pusBuffer = pvBuffer;
|
|
|
|
PRINTK_5(TRACE_3780I,
|
|
"3780i::dsp3780I_WriteIStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
|
|
usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
|
|
|
|
|
|
/*
|
|
* Set the initial MSA address. To convert from an instruction store
|
|
* address to an MSA address
|
|
* shift the address two bits to the left and set bit 22
|
|
*/
|
|
ulDSPAddr = (ulDSPAddr << 2) | (1 << 22);
|
|
spin_lock_irqsave(&dsp_lock, flags);
|
|
OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
|
|
OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
|
|
spin_unlock_irqrestore(&dsp_lock, flags);
|
|
|
|
/* Transfer the memory block */
|
|
while (uCount-- != 0) {
|
|
unsigned short val_lo, val_hi;
|
|
if(get_user(val_lo, pusBuffer++))
|
|
return -EFAULT;
|
|
if(get_user(val_hi, pusBuffer++))
|
|
return -EFAULT;
|
|
spin_lock_irqsave(&dsp_lock, flags);
|
|
OutWordDsp(DSP_MsaDataISLow, val_lo);
|
|
OutWordDsp(DSP_MsaDataDSISHigh, val_hi);
|
|
spin_unlock_irqrestore(&dsp_lock, flags);
|
|
|
|
PRINTK_4(TRACE_3780I,
|
|
"3780I::dsp3780I_WriteIStore uCount %x val_lo %x val_hi %x\n",
|
|
uCount, val_lo, val_hi);
|
|
|
|
PaceMsaAccess(usDspBaseIO);
|
|
|
|
}
|
|
|
|
PRINTK_1(TRACE_3780I,
|
|
"3780I::dsp3780I_WriteIStore exit bRC=TRUE\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int dsp3780I_GetIPCSource(unsigned short usDspBaseIO,
|
|
unsigned short *pusIPCSource)
|
|
{
|
|
unsigned long flags;
|
|
DSP_HBRIDGE_CONTROL rHBridgeControl;
|
|
unsigned short temp;
|
|
|
|
|
|
PRINTK_3(TRACE_3780I,
|
|
"3780i::dsp3780I_GetIPCSource entry usDspBaseIO %x pusIPCSource %p\n",
|
|
usDspBaseIO, pusIPCSource);
|
|
|
|
/*
|
|
* Disable DSP to PC interrupts, read the interrupt register,
|
|
* clear the pending IPC bits, and reenable DSP to PC interrupts
|
|
*/
|
|
spin_lock_irqsave(&dsp_lock, flags);
|
|
MKWORD(rHBridgeControl) = InWordDsp(DSP_HBridgeControl);
|
|
rHBridgeControl.EnableDspInt = FALSE;
|
|
OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
|
|
|
|
*pusIPCSource = InWordDsp(DSP_Interrupt);
|
|
temp = (unsigned short) ~(*pusIPCSource);
|
|
|
|
PRINTK_3(TRACE_3780I,
|
|
"3780i::dsp3780I_GetIPCSource, usIPCSource %x ~ %x\n",
|
|
*pusIPCSource, temp);
|
|
|
|
OutWordDsp(DSP_Interrupt, (unsigned short) ~(*pusIPCSource));
|
|
|
|
rHBridgeControl.EnableDspInt = TRUE;
|
|
OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
|
|
spin_unlock_irqrestore(&dsp_lock, flags);
|
|
|
|
|
|
PRINTK_2(TRACE_3780I,
|
|
"3780i::dsp3780I_GetIPCSource exit usIPCSource %x\n",
|
|
*pusIPCSource);
|
|
|
|
return 0;
|
|
}
|