3780i.c
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上传日期:2013-02-24
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文件大小:21k
- /*
- *
- * 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/version.h>
- #include <linux/config.h>
- #include <linux/kernel.h>
- #include <linux/unistd.h>
- #include <linux/delay.h>
- #include <linux/ioport.h>
- #include <linux/init.h>
- #include <asm/io.h>
- #include <asm/uaccess.h>
- #include <asm/system.h>
- #include <asm/irq.h>
- #include <asm/bitops.h>
- #include "smapi.h"
- #include "mwavedd.h"
- #include "3780i.h"
- static spinlock_t dsp_lock = SPIN_LOCK_UNLOCKED;
- static unsigned long flags;
- static void PaceMsaAccess(unsigned short usDspBaseIO)
- {
- if(current->need_resched)
- schedule();
- udelay(100);
- if(current->need_resched)
- schedule();
- }
- unsigned short dsp3780I_ReadMsaCfg(unsigned short usDspBaseIO,
- unsigned long ulMsaAddr)
- {
- unsigned short val;
- PRINTK_3(TRACE_3780I,
- "3780i::dsp3780I_ReadMsaCfg entry usDspBaseIO %x ulMsaAddr %lxn",
- 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 %xn", val);
- return val;
- }
- void dsp3780I_WriteMsaCfg(unsigned short usDspBaseIO,
- unsigned long ulMsaAddr, unsigned short usValue)
- {
- PRINTK_4(TRACE_3780I,
- "3780i::dsp3780i_WriteMsaCfg entry usDspBaseIO %x ulMsaAddr %lx usValue %xn",
- 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);
- }
- 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 %xn",
- usDspBaseIO, uIndex, ucValue);
- MKBYTE(rSlaveControl) = InByteDsp(DSP_IsaSlaveControl);
- PRINTK_2(TRACE_3780I,
- "3780i::dsp3780i_WriteGenCfg rSlaveControl %xn",
- MKBYTE(rSlaveControl));
- rSlaveControl_Save = rSlaveControl;
- rSlaveControl.ConfigMode = TRUE;
- PRINTK_2(TRACE_3780I,
- "3780i::dsp3780i_WriteGenCfg entry rSlaveControl+ConfigMode %xn",
- 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 exitn");
- }
- 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 %xn",
- 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 %xn", ucValue);
- return ucValue;
- }
- int dsp3780I_EnableDSP(DSP_3780I_CONFIG_SETTINGS * pSettings,
- unsigned short *pIrqMap,
- unsigned short *pDmaMap)
- {
- 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 %xn",
- 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 %xn",
- 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 %xn",
- usDspBaseIO, DSP_IsaSlaveControl,
- usDspBaseIO + DSP_IsaSlaveControl);
- PRINTK_2(TRACE_3780I,
- "3780i::dsp3780i_EnableDSP rSlaveContrl %xn",
- 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 %xn", 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 %xn", 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 %xn",
- 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 %xn",
- ChipID);
- return 0;
- }
- int dsp3780I_DisableDSP(DSP_3780I_CONFIG_SETTINGS * pSettings)
- {
- unsigned short usDspBaseIO = pSettings->usDspBaseIO;
- DSP_ISA_SLAVE_CONTROL rSlaveControl;
- PRINTK_1(TRACE_3780I, "3780i::dsp3780i_DisableDSP entryn");
- 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 exitn");
- return 0;
- }
- int dsp3780I_Reset(DSP_3780I_CONFIG_SETTINGS * pSettings)
- {
- unsigned short usDspBaseIO = pSettings->usDspBaseIO;
- DSP_BOOT_DOMAIN rBootDomain;
- DSP_HBRIDGE_CONTROL rHBridgeControl;
- PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Reset entryn");
- spin_lock_irqsave(&dsp_lock, flags);
- /* Mask DSP to PC interrupt */
- MKWORD(rHBridgeControl) = InWordDsp(DSP_HBridgeControl);
- PRINTK_2(TRACE_3780I, "3780i::dsp3780i_Reset rHBridgeControl %xn",
- 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 %xn",
- 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=0n");
- return 0;
- }
- int dsp3780I_Run(DSP_3780I_CONFIG_SETTINGS * pSettings)
- {
- unsigned short usDspBaseIO = pSettings->usDspBaseIO;
- DSP_BOOT_DOMAIN rBootDomain;
- DSP_HBRIDGE_CONTROL rHBridgeControl;
- PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Run entryn");
- /* 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 %xn",
- MKWORD(rHBridgeControl));
- OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
- spin_unlock_irqrestore(&dsp_lock, flags);
- PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Run exit bRC=TRUEn");
- return 0;
- }
- int dsp3780I_ReadDStore(unsigned short usDspBaseIO, void *pvBuffer,
- unsigned uCount, unsigned long ulDSPAddr)
- {
- unsigned short *pusBuffer = pvBuffer;
- unsigned short val;
- PRINTK_5(TRACE_3780I,
- "3780i::dsp3780I_ReadDStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lxn",
- 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 %xn",
- uCount, val);
- PaceMsaAccess(usDspBaseIO);
- }
- PRINTK_1(TRACE_3780I,
- "3780I::dsp3780I_ReadDStore exit bRC=TRUEn");
- return 0;
- }
- int dsp3780I_ReadAndClearDStore(unsigned short usDspBaseIO,
- void *pvBuffer, unsigned uCount,
- unsigned long ulDSPAddr)
- {
- unsigned short *pusBuffer = pvBuffer;
- unsigned short val;
- PRINTK_5(TRACE_3780I,
- "3780i::dsp3780I_ReadAndDStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lxn",
- 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 %xn",
- uCount, val);
- PaceMsaAccess(usDspBaseIO);
- }
- PRINTK_1(TRACE_3780I,
- "3780I::dsp3780I_ReadAndClearDStore exit bRC=TRUEn");
- return 0;
- }
- int dsp3780I_WriteDStore(unsigned short usDspBaseIO, void *pvBuffer,
- unsigned uCount, unsigned long ulDSPAddr)
- {
- unsigned short *pusBuffer = pvBuffer;
- PRINTK_5(TRACE_3780I,
- "3780i::dsp3780D_WriteDStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lxn",
- 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 %xn",
- uCount, val);
- PaceMsaAccess(usDspBaseIO);
- }
- PRINTK_1(TRACE_3780I,
- "3780I::dsp3780D_WriteDStore exit bRC=TRUEn");
- return 0;
- }
- int dsp3780I_ReadIStore(unsigned short usDspBaseIO, void *pvBuffer,
- unsigned uCount, unsigned long ulDSPAddr)
- {
- unsigned short *pusBuffer = pvBuffer;
- PRINTK_5(TRACE_3780I,
- "3780i::dsp3780I_ReadIStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lxn",
- 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 %xn",
- uCount, val_lo, val_hi);
- PaceMsaAccess(usDspBaseIO);
- }
- PRINTK_1(TRACE_3780I,
- "3780I::dsp3780I_ReadIStore exit bRC=TRUEn");
- return 0;
- }
- int dsp3780I_WriteIStore(unsigned short usDspBaseIO, void *pvBuffer,
- unsigned uCount, unsigned long ulDSPAddr)
- {
- unsigned short *pusBuffer = pvBuffer;
- PRINTK_5(TRACE_3780I,
- "3780i::dsp3780I_WriteIStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lxn",
- 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 %xn",
- uCount, val_lo, val_hi);
- PaceMsaAccess(usDspBaseIO);
- }
- PRINTK_1(TRACE_3780I,
- "3780I::dsp3780I_WriteIStore exit bRC=TRUEn");
- return 0;
- }
- int dsp3780I_GetIPCSource(unsigned short usDspBaseIO,
- unsigned short *pusIPCSource)
- {
- DSP_HBRIDGE_CONTROL rHBridgeControl;
- unsigned short temp;
- PRINTK_3(TRACE_3780I,
- "3780i::dsp3780I_GetIPCSource entry usDspBaseIO %x pusIPCSource %pn",
- usDspBaseIO, pusIPCSource);
- /*
- * Disable DSP to PC interrupts, read the interupt 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 ~ %xn",
- *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 %xn",
- *pusIPCSource);
- return 0;
- }