diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/char/mwave/tp3780i.c | 574 |
1 files changed, 574 insertions, 0 deletions
diff --git a/drivers/char/mwave/tp3780i.c b/drivers/char/mwave/tp3780i.c new file mode 100644 index 000000000..83eaffeb2 --- /dev/null +++ b/drivers/char/mwave/tp3780i.c @@ -0,0 +1,574 @@ +/* +* +* tp3780i.c -- board driver for 3780i on ThinkPads +* +* +* 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/interrupt.h> +#include <linux/kernel.h> +#include <linux/ptrace.h> +#include <linux/ioport.h> +#include <asm/io.h> +#include "smapi.h" +#include "mwavedd.h" +#include "tp3780i.h" +#include "3780i.h" +#include "mwavepub.h" + +static unsigned short s_ausThinkpadIrqToField[16] = + { 0xFFFF, 0xFFFF, 0xFFFF, 0x0001, 0x0002, 0x0003, 0xFFFF, 0x0004, + 0xFFFF, 0xFFFF, 0x0005, 0x0006, 0xFFFF, 0xFFFF, 0xFFFF, 0x0007 }; +static unsigned short s_ausThinkpadDmaToField[8] = + { 0x0001, 0x0002, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0x0003, 0x0004 }; +static unsigned short s_numIrqs = 16, s_numDmas = 8; + + +static void EnableSRAM(THINKPAD_BD_DATA * pBDData) +{ + DSP_3780I_CONFIG_SETTINGS *pSettings = &pBDData->rDspSettings; + unsigned short usDspBaseIO = pSettings->usDspBaseIO; + DSP_GPIO_OUTPUT_DATA_15_8 rGpioOutputData; + DSP_GPIO_DRIVER_ENABLE_15_8 rGpioDriverEnable; + DSP_GPIO_MODE_15_8 rGpioMode; + + PRINTK_1(TRACE_TP3780I, "tp3780i::EnableSRAM, entry\n"); + + MKWORD(rGpioMode) = ReadMsaCfg(DSP_GpioModeControl_15_8); + rGpioMode.GpioMode10 = 0; + WriteMsaCfg(DSP_GpioModeControl_15_8, MKWORD(rGpioMode)); + + MKWORD(rGpioDriverEnable) = 0; + rGpioDriverEnable.Enable10 = true; + rGpioDriverEnable.Mask10 = true; + WriteMsaCfg(DSP_GpioDriverEnable_15_8, MKWORD(rGpioDriverEnable)); + + MKWORD(rGpioOutputData) = 0; + rGpioOutputData.Latch10 = 0; + rGpioOutputData.Mask10 = true; + WriteMsaCfg(DSP_GpioOutputData_15_8, MKWORD(rGpioOutputData)); + + PRINTK_1(TRACE_TP3780I, "tp3780i::EnableSRAM exit\n"); +} + + +static irqreturn_t UartInterrupt(int irq, void *dev_id) +{ + PRINTK_3(TRACE_TP3780I, + "tp3780i::UartInterrupt entry irq %x dev_id %p\n", irq, dev_id); + return IRQ_HANDLED; +} + +static irqreturn_t DspInterrupt(int irq, void *dev_id) +{ + pMWAVE_DEVICE_DATA pDrvData = &mwave_s_mdd; + DSP_3780I_CONFIG_SETTINGS *pSettings = &pDrvData->rBDData.rDspSettings; + unsigned short usDspBaseIO = pSettings->usDspBaseIO; + unsigned short usIPCSource = 0, usIsolationMask, usPCNum; + + PRINTK_3(TRACE_TP3780I, + "tp3780i::DspInterrupt entry irq %x dev_id %p\n", irq, dev_id); + + if (dsp3780I_GetIPCSource(usDspBaseIO, &usIPCSource) == 0) { + PRINTK_2(TRACE_TP3780I, + "tp3780i::DspInterrupt, return from dsp3780i_GetIPCSource, usIPCSource %x\n", + usIPCSource); + usIsolationMask = 1; + for (usPCNum = 1; usPCNum <= 16; usPCNum++) { + if (usIPCSource & usIsolationMask) { + usIPCSource &= ~usIsolationMask; + PRINTK_3(TRACE_TP3780I, + "tp3780i::DspInterrupt usPCNum %x usIPCSource %x\n", + usPCNum, usIPCSource); + if (pDrvData->IPCs[usPCNum - 1].usIntCount == 0) { + pDrvData->IPCs[usPCNum - 1].usIntCount = 1; + } + PRINTK_2(TRACE_TP3780I, + "tp3780i::DspInterrupt usIntCount %x\n", + pDrvData->IPCs[usPCNum - 1].usIntCount); + if (pDrvData->IPCs[usPCNum - 1].bIsEnabled == true) { + PRINTK_2(TRACE_TP3780I, + "tp3780i::DspInterrupt, waking up usPCNum %x\n", + usPCNum - 1); + wake_up_interruptible(&pDrvData->IPCs[usPCNum - 1].ipc_wait_queue); + } else { + PRINTK_2(TRACE_TP3780I, + "tp3780i::DspInterrupt, no one waiting for IPC %x\n", + usPCNum - 1); + } + } + if (usIPCSource == 0) + break; + /* try next IPC */ + usIsolationMask = usIsolationMask << 1; + } + } else { + PRINTK_1(TRACE_TP3780I, + "tp3780i::DspInterrupt, return false from dsp3780i_GetIPCSource\n"); + } + PRINTK_1(TRACE_TP3780I, "tp3780i::DspInterrupt exit\n"); + return IRQ_HANDLED; +} + + +int tp3780I_InitializeBoardData(THINKPAD_BD_DATA * pBDData) +{ + int retval = 0; + DSP_3780I_CONFIG_SETTINGS *pSettings = &pBDData->rDspSettings; + + + PRINTK_2(TRACE_TP3780I, "tp3780i::tp3780I_InitializeBoardData entry pBDData %p\n", pBDData); + + pBDData->bDSPEnabled = false; + pSettings->bInterruptClaimed = false; + + retval = smapi_init(); + if (retval) { + PRINTK_ERROR(KERN_ERR_MWAVE "tp3780i::tp3780I_InitializeBoardData: Error: SMAPI is not available on this machine\n"); + } else { + if (mwave_3780i_irq || mwave_3780i_io || mwave_uart_irq || mwave_uart_io) { + retval = smapi_set_DSP_cfg(); + } + } + + PRINTK_2(TRACE_TP3780I, "tp3780i::tp3780I_InitializeBoardData exit retval %x\n", retval); + + return retval; +} + +void tp3780I_Cleanup(THINKPAD_BD_DATA *pBDData) +{ + PRINTK_2(TRACE_TP3780I, + "tp3780i::tp3780I_Cleanup entry and exit pBDData %p\n", pBDData); +} + +int tp3780I_CalcResources(THINKPAD_BD_DATA * pBDData) +{ + SMAPI_DSP_SETTINGS rSmapiInfo; + DSP_3780I_CONFIG_SETTINGS *pSettings = &pBDData->rDspSettings; + + PRINTK_2(TRACE_TP3780I, + "tp3780i::tp3780I_CalcResources entry pBDData %p\n", pBDData); + + if (smapi_query_DSP_cfg(&rSmapiInfo)) { + PRINTK_ERROR(KERN_ERR_MWAVE "tp3780i::tp3780I_CalcResources: Error: Could not query DSP config. Aborting.\n"); + return -EIO; + } + + /* Sanity check */ + if ( + ( rSmapiInfo.usDspIRQ == 0 ) + || ( rSmapiInfo.usDspBaseIO == 0 ) + || ( rSmapiInfo.usUartIRQ == 0 ) + || ( rSmapiInfo.usUartBaseIO == 0 ) + ) { + PRINTK_ERROR(KERN_ERR_MWAVE "tp3780i::tp3780I_CalcResources: Error: Illegal resource setting. Aborting.\n"); + return -EIO; + } + + pSettings->bDSPEnabled = (rSmapiInfo.bDSPEnabled && rSmapiInfo.bDSPPresent); + pSettings->bModemEnabled = rSmapiInfo.bModemEnabled; + pSettings->usDspIrq = rSmapiInfo.usDspIRQ; + pSettings->usDspDma = rSmapiInfo.usDspDMA; + pSettings->usDspBaseIO = rSmapiInfo.usDspBaseIO; + pSettings->usUartIrq = rSmapiInfo.usUartIRQ; + pSettings->usUartBaseIO = rSmapiInfo.usUartBaseIO; + + pSettings->uDStoreSize = TP_ABILITIES_DATA_SIZE; + pSettings->uIStoreSize = TP_ABILITIES_INST_SIZE; + pSettings->uIps = TP_ABILITIES_INTS_PER_SEC; + + if (pSettings->bDSPEnabled && pSettings->bModemEnabled && pSettings->usDspIrq == pSettings->usUartIrq) { + pBDData->bShareDspIrq = pBDData->bShareUartIrq = 1; + } else { + pBDData->bShareDspIrq = pBDData->bShareUartIrq = 0; + } + + PRINTK_1(TRACE_TP3780I, "tp3780i::tp3780I_CalcResources exit\n"); + + return 0; +} + + +int tp3780I_ClaimResources(THINKPAD_BD_DATA * pBDData) +{ + int retval = 0; + DSP_3780I_CONFIG_SETTINGS *pSettings = &pBDData->rDspSettings; + struct resource *pres; + + PRINTK_2(TRACE_TP3780I, + "tp3780i::tp3780I_ClaimResources entry pBDData %p\n", pBDData); + + pres = request_region(pSettings->usDspBaseIO, 16, "mwave_3780i"); + if ( pres == NULL ) retval = -EIO; + + if (retval) { + PRINTK_ERROR(KERN_ERR_MWAVE "tp3780i::tp3780I_ClaimResources: Error: Could not claim I/O region starting at %x\n", pSettings->usDspBaseIO); + retval = -EIO; + } + + PRINTK_2(TRACE_TP3780I, "tp3780i::tp3780I_ClaimResources exit retval %x\n", retval); + + return retval; +} + +int tp3780I_ReleaseResources(THINKPAD_BD_DATA * pBDData) +{ + int retval = 0; + DSP_3780I_CONFIG_SETTINGS *pSettings = &pBDData->rDspSettings; + + PRINTK_2(TRACE_TP3780I, + "tp3780i::tp3780I_ReleaseResources entry pBDData %p\n", pBDData); + + release_region(pSettings->usDspBaseIO & (~3), 16); + + if (pSettings->bInterruptClaimed) { + free_irq(pSettings->usDspIrq, NULL); + pSettings->bInterruptClaimed = false; + } + + PRINTK_2(TRACE_TP3780I, + "tp3780i::tp3780I_ReleaseResources exit retval %x\n", retval); + + return retval; +} + + + +int tp3780I_EnableDSP(THINKPAD_BD_DATA * pBDData) +{ + DSP_3780I_CONFIG_SETTINGS *pSettings = &pBDData->rDspSettings; + bool bDSPPoweredUp = false, bInterruptAllocated = false; + + PRINTK_2(TRACE_TP3780I, "tp3780i::tp3780I_EnableDSP entry pBDData %p\n", pBDData); + + if (pBDData->bDSPEnabled) { + PRINTK_ERROR(KERN_ERR_MWAVE "tp3780i::tp3780I_EnableDSP: Error: DSP already enabled!\n"); + goto exit_cleanup; + } + + if (!pSettings->bDSPEnabled) { + PRINTK_ERROR(KERN_ERR_MWAVE "tp3780::tp3780I_EnableDSP: Error: pSettings->bDSPEnabled not set\n"); + goto exit_cleanup; + } + + if ( + (pSettings->usDspIrq >= s_numIrqs) + || (pSettings->usDspDma >= s_numDmas) + || (s_ausThinkpadIrqToField[pSettings->usDspIrq] == 0xFFFF) + || (s_ausThinkpadDmaToField[pSettings->usDspDma] == 0xFFFF) + ) { + PRINTK_ERROR(KERN_ERR_MWAVE "tp3780i::tp3780I_EnableDSP: Error: invalid irq %x\n", pSettings->usDspIrq); + goto exit_cleanup; + } + + if ( + ((pSettings->usDspBaseIO & 0xF00F) != 0) + || (pSettings->usDspBaseIO & 0x0FF0) == 0 + ) { + PRINTK_ERROR(KERN_ERR_MWAVE "tp3780i::tp3780I_EnableDSP: Error: Invalid DSP base I/O address %x\n", pSettings->usDspBaseIO); + goto exit_cleanup; + } + + if (pSettings->bModemEnabled) { + if ( + pSettings->usUartIrq >= s_numIrqs + || s_ausThinkpadIrqToField[pSettings->usUartIrq] == 0xFFFF + ) { + PRINTK_ERROR(KERN_ERR_MWAVE "tp3780i::tp3780I_EnableDSP: Error: Invalid UART IRQ %x\n", pSettings->usUartIrq); + goto exit_cleanup; + } + switch (pSettings->usUartBaseIO) { + case 0x03F8: + case 0x02F8: + case 0x03E8: + case 0x02E8: + break; + + default: + PRINTK_ERROR("tp3780i::tp3780I_EnableDSP: Error: Invalid UART base I/O address %x\n", pSettings->usUartBaseIO); + goto exit_cleanup; + } + } + + pSettings->bDspIrqActiveLow = pSettings->bDspIrqPulse = true; + pSettings->bUartIrqActiveLow = pSettings->bUartIrqPulse = true; + + if (pBDData->bShareDspIrq) { + pSettings->bDspIrqActiveLow = false; + } + if (pBDData->bShareUartIrq) { + pSettings->bUartIrqActiveLow = false; + } + + pSettings->usNumTransfers = TP_CFG_NumTransfers; + pSettings->usReRequest = TP_CFG_RerequestTimer; + pSettings->bEnableMEMCS16 = TP_CFG_MEMCS16; + pSettings->usIsaMemCmdWidth = TP_CFG_IsaMemCmdWidth; + pSettings->bGateIOCHRDY = TP_CFG_GateIOCHRDY; + pSettings->bEnablePwrMgmt = TP_CFG_EnablePwrMgmt; + pSettings->usHBusTimerLoadValue = TP_CFG_HBusTimerValue; + pSettings->bDisableLBusTimeout = TP_CFG_DisableLBusTimeout; + pSettings->usN_Divisor = TP_CFG_N_Divisor; + pSettings->usM_Multiplier = TP_CFG_M_Multiplier; + pSettings->bPllBypass = TP_CFG_PllBypass; + pSettings->usChipletEnable = TP_CFG_ChipletEnable; + + if (request_irq(pSettings->usUartIrq, &UartInterrupt, 0, "mwave_uart", NULL)) { + PRINTK_ERROR(KERN_ERR_MWAVE "tp3780i::tp3780I_EnableDSP: Error: Could not get UART IRQ %x\n", pSettings->usUartIrq); + goto exit_cleanup; + } else { /* no conflict just release */ + free_irq(pSettings->usUartIrq, NULL); + } + + if (request_irq(pSettings->usDspIrq, &DspInterrupt, 0, "mwave_3780i", NULL)) { + PRINTK_ERROR("tp3780i::tp3780I_EnableDSP: Error: Could not get 3780i IRQ %x\n", pSettings->usDspIrq); + goto exit_cleanup; + } else { + PRINTK_3(TRACE_TP3780I, + "tp3780i::tp3780I_EnableDSP, got interrupt %x bShareDspIrq %x\n", + pSettings->usDspIrq, pBDData->bShareDspIrq); + bInterruptAllocated = true; + pSettings->bInterruptClaimed = true; + } + + smapi_set_DSP_power_state(false); + if (smapi_set_DSP_power_state(true)) { + PRINTK_ERROR(KERN_ERR_MWAVE "tp3780i::tp3780I_EnableDSP: Error: smapi_set_DSP_power_state(true) failed\n"); + goto exit_cleanup; + } else { + bDSPPoweredUp = true; + } + + if (dsp3780I_EnableDSP(pSettings, s_ausThinkpadIrqToField, s_ausThinkpadDmaToField)) { + PRINTK_ERROR("tp3780i::tp3780I_EnableDSP: Error: dsp7880I_EnableDSP() failed\n"); + goto exit_cleanup; + } + + EnableSRAM(pBDData); + + pBDData->bDSPEnabled = true; + + PRINTK_1(TRACE_TP3780I, "tp3780i::tp3780I_EnableDSP exit\n"); + + return 0; + +exit_cleanup: + PRINTK_ERROR("tp3780i::tp3780I_EnableDSP: Cleaning up\n"); + if (bDSPPoweredUp) + smapi_set_DSP_power_state(false); + if (bInterruptAllocated) { + free_irq(pSettings->usDspIrq, NULL); + pSettings->bInterruptClaimed = false; + } + return -EIO; +} + + +int tp3780I_DisableDSP(THINKPAD_BD_DATA * pBDData) +{ + int retval = 0; + DSP_3780I_CONFIG_SETTINGS *pSettings = &pBDData->rDspSettings; + + PRINTK_2(TRACE_TP3780I, "tp3780i::tp3780I_DisableDSP entry pBDData %p\n", pBDData); + + if (pBDData->bDSPEnabled) { + dsp3780I_DisableDSP(&pBDData->rDspSettings); + if (pSettings->bInterruptClaimed) { + free_irq(pSettings->usDspIrq, NULL); + pSettings->bInterruptClaimed = false; + } + smapi_set_DSP_power_state(false); + pBDData->bDSPEnabled = false; + } + + PRINTK_2(TRACE_TP3780I, "tp3780i::tp3780I_DisableDSP exit retval %x\n", retval); + + return retval; +} + + +int tp3780I_ResetDSP(THINKPAD_BD_DATA * pBDData) +{ + int retval = 0; + DSP_3780I_CONFIG_SETTINGS *pSettings = &pBDData->rDspSettings; + + PRINTK_2(TRACE_TP3780I, "tp3780i::tp3780I_ResetDSP entry pBDData %p\n", + pBDData); + + if (dsp3780I_Reset(pSettings) == 0) { + EnableSRAM(pBDData); + } else { + retval = -EIO; + } + + PRINTK_2(TRACE_TP3780I, "tp3780i::tp3780I_ResetDSP exit retval %x\n", retval); + + return retval; +} + + +int tp3780I_StartDSP(THINKPAD_BD_DATA * pBDData) +{ + int retval = 0; + DSP_3780I_CONFIG_SETTINGS *pSettings = &pBDData->rDspSettings; + + PRINTK_2(TRACE_TP3780I, "tp3780i::tp3780I_StartDSP entry pBDData %p\n", pBDData); + + if (dsp3780I_Run(pSettings) == 0) { + // @BUG @TBD EnableSRAM(pBDData); + } else { + retval = -EIO; + } + + PRINTK_2(TRACE_TP3780I, "tp3780i::tp3780I_StartDSP exit retval %x\n", retval); + + return retval; +} + + +int tp3780I_QueryAbilities(THINKPAD_BD_DATA * pBDData, MW_ABILITIES * pAbilities) +{ + PRINTK_2(TRACE_TP3780I, + "tp3780i::tp3780I_QueryAbilities entry pBDData %p\n", pBDData); + + memset(pAbilities, 0, sizeof(*pAbilities)); + /* fill out standard constant fields */ + pAbilities->instr_per_sec = pBDData->rDspSettings.uIps; + pAbilities->data_size = pBDData->rDspSettings.uDStoreSize; + pAbilities->inst_size = pBDData->rDspSettings.uIStoreSize; + pAbilities->bus_dma_bw = pBDData->rDspSettings.uDmaBandwidth; + + /* fill out dynamically determined fields */ + pAbilities->component_list[0] = 0x00010000 | MW_ADC_MASK; + pAbilities->component_list[1] = 0x00010000 | MW_ACI_MASK; + pAbilities->component_list[2] = 0x00010000 | MW_AIC1_MASK; + pAbilities->component_list[3] = 0x00010000 | MW_AIC2_MASK; + pAbilities->component_list[4] = 0x00010000 | MW_CDDAC_MASK; + pAbilities->component_list[5] = 0x00010000 | MW_MIDI_MASK; + pAbilities->component_list[6] = 0x00010000 | MW_UART_MASK; + pAbilities->component_count = 7; + + /* Fill out Mwave OS and BIOS task names */ + + memcpy(pAbilities->mwave_os_name, TP_ABILITIES_MWAVEOS_NAME, + sizeof(TP_ABILITIES_MWAVEOS_NAME)); + memcpy(pAbilities->bios_task_name, TP_ABILITIES_BIOSTASK_NAME, + sizeof(TP_ABILITIES_BIOSTASK_NAME)); + + PRINTK_1(TRACE_TP3780I, + "tp3780i::tp3780I_QueryAbilities exit retval=SUCCESSFUL\n"); + + return 0; +} + +int tp3780I_ReadWriteDspDStore(THINKPAD_BD_DATA * pBDData, unsigned int uOpcode, + void __user *pvBuffer, unsigned int uCount, + unsigned long ulDSPAddr) +{ + int retval = 0; + DSP_3780I_CONFIG_SETTINGS *pSettings = &pBDData->rDspSettings; + unsigned short usDspBaseIO = pSettings->usDspBaseIO; + bool bRC = 0; + + PRINTK_6(TRACE_TP3780I, + "tp3780i::tp3780I_ReadWriteDspDStore entry pBDData %p, uOpcode %x, pvBuffer %p, uCount %x, ulDSPAddr %lx\n", + pBDData, uOpcode, pvBuffer, uCount, ulDSPAddr); + + if (pBDData->bDSPEnabled) { + switch (uOpcode) { + case IOCTL_MW_READ_DATA: + bRC = dsp3780I_ReadDStore(usDspBaseIO, pvBuffer, uCount, ulDSPAddr); + break; + + case IOCTL_MW_READCLEAR_DATA: + bRC = dsp3780I_ReadAndClearDStore(usDspBaseIO, pvBuffer, uCount, ulDSPAddr); + break; + + case IOCTL_MW_WRITE_DATA: + bRC = dsp3780I_WriteDStore(usDspBaseIO, pvBuffer, uCount, ulDSPAddr); + break; + } + } + + retval = (bRC) ? -EIO : 0; + PRINTK_2(TRACE_TP3780I, "tp3780i::tp3780I_ReadWriteDspDStore exit retval %x\n", retval); + + return retval; +} + + +int tp3780I_ReadWriteDspIStore(THINKPAD_BD_DATA * pBDData, unsigned int uOpcode, + void __user *pvBuffer, unsigned int uCount, + unsigned long ulDSPAddr) +{ + int retval = 0; + DSP_3780I_CONFIG_SETTINGS *pSettings = &pBDData->rDspSettings; + unsigned short usDspBaseIO = pSettings->usDspBaseIO; + bool bRC = 0; + + PRINTK_6(TRACE_TP3780I, + "tp3780i::tp3780I_ReadWriteDspIStore entry pBDData %p, uOpcode %x, pvBuffer %p, uCount %x, ulDSPAddr %lx\n", + pBDData, uOpcode, pvBuffer, uCount, ulDSPAddr); + + if (pBDData->bDSPEnabled) { + switch (uOpcode) { + case IOCTL_MW_READ_INST: + bRC = dsp3780I_ReadIStore(usDspBaseIO, pvBuffer, uCount, ulDSPAddr); + break; + + case IOCTL_MW_WRITE_INST: + bRC = dsp3780I_WriteIStore(usDspBaseIO, pvBuffer, uCount, ulDSPAddr); + break; + } + } + + retval = (bRC) ? -EIO : 0; + + PRINTK_2(TRACE_TP3780I, + "tp3780i::tp3780I_ReadWriteDspIStore exit retval %x\n", retval); + + return retval; +} + |