- 根目录:
- drivers
- char
- mwave
- 3780i.c
/*
*
* 3780i.c -- helper routines for the 3780i DSP
*
*
* 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
*/
#include <linux/kernel.h>
#include <linux/unistd.h>
#include <linux/delay.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/bitops.h>
#include <linux/sched.h> /* cond_resched() */
#include <asm/io.h>
#include <asm/uaccess.h>
#include <asm/irq.h>
#include "smapi.h"
#include "mwavedd.h"
#include "3780i.h"
static DEFINE_SPINLOCK(dsp_lock);
static void PaceMsaAccess(unsigned short usDspBaseIO)
{
cond_resched();
udelay(100);
cond_resched();
}
unsigned short dsp3780I_ReadMsaCfg(unsigned short usDspBaseIO,
unsigned long ulMsaAddr)
{
unsigned long flags;
unsigned short val;
PRINTK_3(TRACE_3780I,
"3780i::dsp3780I_ReadMsaCfg entry usDspBaseIO %x ulMsaAddr %lx\n",
usDspBaseIO, ulMsaAddr);
spin_lock_irqsave(&dsp_lock, flags);
OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulMsaAddr);
OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulMsaAddr >> 16));
val = InWordDsp(DSP_MsaDataDSISHigh);
spin_unlock_irqrestore(&dsp_lock, flags);
PRINTK_2(TRACE_3780I, "3780i::dsp3780I_ReadMsaCfg exit val %x\n", val);
return val;
}
void dsp3780I_WriteMsaCfg(unsigned short usDspBaseIO,
unsigned long ulMsaAddr, unsigned short usValue)
{
unsigned long flags;
PRINTK_4(TRACE_3780I,
"3780i::dsp3780i_WriteMsaCfg entry usDspBaseIO %x ulMsaAddr %lx usValue %x\n",
usDspBaseIO, ulMsaAddr, usValue);
spin_lock_irqsave(&dsp_lock, flags);
OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulMsaAddr);
OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulMsaAddr >> 16));
OutWordDsp(DSP_MsaDataDSISHigh, usValue);
spin_unlock_irqrestore(&dsp_lock, flags);
}
static void dsp3780I_WriteGenCfg(unsigned short usDspBaseIO, unsigned uIndex,
unsigned char ucValue)
{
DSP_ISA_SLAVE_CONTROL rSlaveControl;
DSP_ISA_SLAVE_CONTROL rSlaveControl_Save;
PRINTK_4(TRACE_3780I,
"3780i::dsp3780i_WriteGenCfg entry usDspBaseIO %x uIndex %x ucValue %x\n",
usDspBaseIO, uIndex, ucValue);
MKBYTE(rSlaveControl) = InByteDsp(DSP_IsaSlaveControl);
PRINTK_2(TRACE_3780I,
"3780i::dsp3780i_WriteGenCfg rSlaveControl %x\n",
MKBYTE(rSlaveControl));
rSlaveControl_Save = rSlaveControl;
rSlaveControl.ConfigMode = TRUE;
PRINTK_2(TRACE_3780I,
"3780i::dsp3780i_WriteGenCfg entry rSlaveControl+ConfigMode %x\n",
MKBYTE(rSlaveControl));
OutByteDsp(DSP_IsaSlaveControl, MKBYTE(rSlaveControl));
OutByteDsp(DSP_ConfigAddress, (unsigned char) uIndex);
OutByteDsp(DSP_ConfigData, ucValue);
OutByteDsp(DSP_IsaSlaveControl, MKBYTE(rSlaveControl_Save));
PRINTK_1(TRACE_3780I, "3780i::dsp3780i_WriteGenCfg exit\n");
}
#if 0
unsigned char dsp3780I_ReadGenCfg(unsigned short usDspBaseIO,
unsigned uIndex)
{
DSP_ISA_SLAVE_CONTROL rSlaveControl;
DSP_ISA_SLAVE_CONTROL rSlaveControl_Save;
unsigned char ucValue;
PRINTK_3(TRACE_3780I,
"3780i::dsp3780i_ReadGenCfg entry usDspBaseIO %x uIndex %x\n",
usDspBaseIO, uIndex);
MKBYTE(rSlaveControl) = InByteDsp(DSP_IsaSlaveControl);
rSlaveControl_Save = rSlaveControl;
rSlaveControl.ConfigMode = TRUE;
OutByteDsp(DSP_IsaSlaveControl, MKBYTE(rSlaveControl));
OutByteDsp(DSP_ConfigAddress, (unsigned char) uIndex);
ucValue = InByteDsp(DSP_ConfigData);
OutByteDsp(DSP_IsaSlaveControl, MKBYTE(rSlaveControl_Save));
PRINTK_2(TRACE_3780I,
"3780i::dsp3780i_ReadGenCfg exit ucValue %x\n", ucValue);
return ucValue;
}
#endif /* 0 */
int dsp3780I_EnableDSP(DSP_3780I_CONFIG_SETTINGS * pSettings,
unsigned short *pIrqMap,
unsigned short *pDmaMap)
{
unsigned long flags;
unsigned short usDspBaseIO = pSettings->usDspBaseIO;
int i;
DSP_UART_CFG_1 rUartCfg1;
DSP_UART_CFG_2 rUartCfg2;
DSP_HBRIDGE_CFG_1 rHBridgeCfg1;
DSP_HBRIDGE_CFG_2 rHBridgeCfg2;
DSP_BUSMASTER_CFG_1 rBusmasterCfg1;
DSP_BUSMASTER_CFG_2 rBusmasterCfg2;
DSP_ISA_PROT_CFG rIsaProtCfg;
DSP_POWER_MGMT_CFG rPowerMgmtCfg;
DSP_HBUS_TIMER_CFG rHBusTimerCfg;
DSP_LBUS_TIMEOUT_DISABLE rLBusTimeoutDisable;
DSP_CHIP_RESET rChipReset;
DSP_CLOCK_CONTROL_1 rClockControl1;
DSP_CLOCK_CONTROL_2 rClockControl2;
DSP_ISA_SLAVE_CONTROL rSlaveControl;
DSP_HBRIDGE_CONTROL rHBridgeControl;
unsigned short ChipID = 0;
unsigned short tval;
PRINTK_2(TRACE_3780I,
"3780i::dsp3780I_EnableDSP entry pSettings->bDSPEnabled %x\n",
pSettings->bDSPEnabled);
if (!pSettings->bDSPEnabled) {
PRINTK_ERROR( KERN_ERR "3780i::dsp3780I_EnableDSP: Error: DSP not enabled. Aborting.\n" );
return -EIO;
}
PRINTK_2(TRACE_3780I,
"3780i::dsp3780i_EnableDSP entry pSettings->bModemEnabled %x\n",
pSettings->bModemEnabled);
if (pSettings->bModemEnabled) {
rUartCfg1.Reserved = rUartCfg2.Reserved = 0;
rUartCfg1.IrqActiveLow = pSettings->bUartIrqActiveLow;
rUartCfg1.IrqPulse = pSettings->bUartIrqPulse;
rUartCfg1.Irq =
(unsigned char) pIrqMap[pSettings->usUartIrq];
switch (pSettings->usUartBaseIO) {
case 0x03F8:
rUartCfg1.BaseIO = 0;
break;
case 0x02F8:
rUartCfg1.BaseIO = 1;
break;
case 0x03E8:
rUartCfg1.BaseIO = 2;
break;
case 0x02E8:
rUartCfg1.BaseIO = 3;
break;
}
rUartCfg2.Enable = TRUE;
}
rHBridgeCfg1.Reserved = rHBridgeCfg2.Reserved = 0;
rHBridgeCfg1.IrqActiveLow = pSettings->bDspIrqActiveLow;
rHBridgeCfg1.IrqPulse = pSettings->bDspIrqPulse;
rHBridgeCfg1.Irq = (unsigned char) pIrqMap[pSettings->usDspIrq];
rHBridgeCfg1.AccessMode = 1;
rHBridgeCfg2.Enable = TRUE;
rBusmasterCfg2.Reserved = 0;
rBusmasterCfg1.Dma = (unsigned char) pDmaMap[pSettings->usDspDma];
rBusmasterCfg1.NumTransfers =
(unsigned char) pSettings->usNumTransfers;
rBusmasterCfg1.ReRequest = (unsigned char) pSettings->usReRequest;
rBusmasterCfg1.MEMCS16 = pSettings->bEnableMEMCS16;
rBusmasterCfg2.IsaMemCmdWidth =
(unsigned char) pSettings->usIsaMemCmdWidth;
rIsaProtCfg.Reserved = 0;
rIsaProtCfg.GateIOCHRDY = pSettings->bGateIOCHRDY;
rPowerMgmtCfg.Reserved = 0;
rPowerMgmtCfg.Enable = pSettings->bEnablePwrMgmt;
rHBusTimerCfg.LoadValue =
(unsigned char) pSettings->usHBusTimerLoadValue;
rLBusTimeoutDisable.Reserved = 0;
rLBusTimeoutDisable.DisableTimeout =
pSettings->bDisableLBusTimeout;
MKWORD(rChipReset) = ~pSettings->usChipletEnable;
rClockControl1.Reserved1 = rClockControl1.Reserved2 = 0;
rClockControl1.N_Divisor = pSettings->usN_Divisor;
rClockControl1.M_Multiplier = pSettings->usM_Multiplier;
rClockControl2.Reserved = 0;
rClockControl2.PllBypass = pSettings->bPllBypass;
/* Issue a soft reset to the chip */
/* Note: Since we may be coming in with 3780i clocks suspended, we must keep
* soft-reset active for 10ms.
*/
rSlaveControl.ClockControl = 0;
rSlaveControl.SoftReset = TRUE;
rSlaveControl.ConfigMode = FALSE;
rSlaveControl.Reserved = 0;
PRINTK_4(TRACE_3780I,
"3780i::dsp3780i_EnableDSP usDspBaseIO %x index %x taddr %x\n",
usDspBaseIO, DSP_IsaSlaveControl,
usDspBaseIO + DSP_IsaSlaveControl);
PRINTK_2(TRACE_3780I,
"3780i::dsp3780i_EnableDSP rSlaveContrl %x\n",
MKWORD(rSlaveControl));
spin_lock_irqsave(&dsp_lock, flags);
OutWordDsp(DSP_IsaSlaveControl, MKWORD(rSlaveControl));
MKWORD(tval) = InWordDsp(DSP_IsaSlaveControl);
PRINTK_2(TRACE_3780I,
"3780i::dsp3780i_EnableDSP rSlaveControl 2 %x\n", tval);
for (i = 0; i < 11; i++)
udelay(2000);
rSlaveControl.SoftReset = FALSE;
OutWordDsp(DSP_IsaSlaveControl, MKWORD(rSlaveControl));
MKWORD(tval) = InWordDsp(DSP_IsaSlaveControl);
PRINTK_2(TRACE_3780I,
"3780i::dsp3780i_EnableDSP rSlaveControl 3 %x\n", tval);
/* Program our general configuration registers */
WriteGenCfg(DSP_HBridgeCfg1Index, MKBYTE(rHBridgeCfg1));
WriteGenCfg(DSP_HBridgeCfg2Index, MKBYTE(rHBridgeCfg2));
WriteGenCfg(DSP_BusMasterCfg1Index, MKBYTE(rBusmasterCfg1));
WriteGenCfg(DSP_BusMasterCfg2Index, MKBYTE(rBusmasterCfg2));
WriteGenCfg(DSP_IsaProtCfgIndex, MKBYTE(rIsaProtCfg));
WriteGenCfg(DSP_PowerMgCfgIndex, MKBYTE(rPowerMgmtCfg));
WriteGenCfg(DSP_HBusTimerCfgIndex, MKBYTE(rHBusTimerCfg));
if (pSettings->bModemEnabled) {
WriteGenCfg(DSP_UartCfg1Index, MKBYTE(rUartCfg1));
WriteGenCfg(DSP_UartCfg2Index, MKBYTE(rUartCfg2));
}
rHBridgeControl.EnableDspInt = FALSE;
rHBridgeControl.MemAutoInc = TRUE;
rHBridgeControl.IoAutoInc = FALSE;
rHBridgeControl.DiagnosticMode = FALSE;
PRINTK_3(TRACE_3780I,
"3780i::dsp3780i_EnableDSP DSP_HBridgeControl %x rHBridgeControl %x\n",
DSP_HBridgeControl, MKWORD(rHBridgeControl));
OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
spin_unlock_irqrestore(&dsp_lock, flags);
WriteMsaCfg(DSP_LBusTimeoutDisable, MKWORD(rLBusTimeoutDisable));
WriteMsaCfg(DSP_ClockControl_1, MKWORD(rClockControl1));
WriteMsaCfg(DSP_ClockControl_2, MKWORD(rClockControl2));
WriteMsaCfg(DSP_ChipReset, MKWORD(rChipReset));
ChipID = ReadMsaCfg(DSP_ChipID);
PRINTK_2(TRACE_3780I,
"3780i::dsp3780I_EnableDSP exiting bRC=TRUE, ChipID %x\n",
ChipID);
return 0;
}
int dsp3780I_DisableDSP(DSP_3780I_CONFIG_SETTINGS * pSettings)
{
unsigned long flags;
unsigned short usDspBaseIO = pSettings->usDspBaseIO;
DSP_ISA_SLAVE_CONTROL rSlaveControl;
PRINTK_1(TRACE_3780I, "3780i::dsp3780i_DisableDSP entry\n");
rSlaveControl.ClockControl = 0;
rSlaveControl.SoftReset = TRUE;
rSlaveControl.ConfigMode = FALSE;
rSlaveControl.Reserved = 0;
spin_lock_irqsave(&dsp_lock, flags);
OutWordDsp(DSP_IsaSlaveControl, MKWORD(rSlaveControl));
udelay(5);
rSlaveControl.ClockControl = 1;
OutWordDsp(DSP_IsaSlaveControl, MKWORD(rSlaveControl));
spin_unlock_irqrestore(&dsp_lock, flags);
udelay(5);
PRINTK_1(TRACE_3780I, "3780i::dsp3780i_DisableDSP exit\n");
return 0;
}
int dsp3780I_Reset(DSP_3780I_CONFIG_SETTINGS * pSettings)
{
unsigned long flags;
unsigned short usDspBaseIO = pSettings->usDspBaseIO;
DSP_BOOT_DOMAIN rBootDomain;
DSP_HBRIDGE_CONTROL rHBridgeControl;
PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Reset entry\n");
spin_lock_irqsave(&dsp_lock, flags);
/* Mask DSP to PC interrupt */
MKWORD(rHBridgeControl) = InWordDsp(DSP_HBridgeControl);
PRINTK_2(TRACE_3780I, "3780i::dsp3780i_Reset rHBridgeControl %x\n",
MKWORD(rHBridgeControl));
rHBridgeControl.EnableDspInt = FALSE;
OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
spin_unlock_irqrestore(&dsp_lock, flags);
/* Reset the core via the boot domain register */
rBootDomain.ResetCore = TRUE;
rBootDomain.Halt = TRUE;
rBootDomain.NMI = TRUE;
rBootDomain.Reserved = 0;
PRINTK_2(TRACE_3780I, "3780i::dsp3780i_Reset rBootDomain %x\n",
MKWORD(rBootDomain));
WriteMsaCfg(DSP_MspBootDomain, MKWORD(rBootDomain));
/* Reset all the chiplets and then reactivate them */
WriteMsaCfg(DSP_ChipReset, 0xFFFF);
udelay(5);
WriteMsaCfg(DSP_ChipReset,
(unsigned short) (~pSettings->usChipletEnable));
PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Reset exit bRC=0\n");
return 0;
}
int dsp3780I_Run(DSP_3780I_CONFIG_SETTINGS * pSettings)
{
unsigned long flags;
unsigned short usDspBaseIO = pSettings->usDspBaseIO;
DSP_BOOT_DOMAIN rBootDomain;
DSP_HBRIDGE_CONTROL rHBridgeControl;
PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Run entry\n");
/* Transition the core to a running state */
rBootDomain.ResetCore = TRUE;
rBootDomain.Halt = FALSE;
rBootDomain.NMI = TRUE;
rBootDomain.Reserved = 0;
WriteMsaCfg(DSP_MspBootDomain, MKWORD(rBootDomain));
udelay(5);
rBootDomain.ResetCore = FALSE;
WriteMsaCfg(DSP_MspBootDomain, MKWORD(rBootDomain));
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;
}