/* * * 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 */ #define pr_fmt(fmt) "tp3780i: " fmt #include #include #include #include #include #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(struct thinkpad_bd_data *pBDData) { struct 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; 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)); } static irqreturn_t UartInterrupt(int irq, void *dev_id) { return IRQ_HANDLED; } static irqreturn_t DspInterrupt(int irq, void *dev_id) { struct mwave_device_data *pDrvData = &mwave_s_mdd; struct dsp_3780i_config_settings *pSettings = &pDrvData->rBDData.rDspSettings; unsigned short usDspBaseIO = pSettings->usDspBaseIO; unsigned short usIPCSource = 0, usIsolationMask, usPCNum; if (dsp3780I_GetIPCSource(usDspBaseIO, &usIPCSource) == 0) { usIsolationMask = 1; for (usPCNum = 1; usPCNum <= 16; usPCNum++) { if (usIPCSource & usIsolationMask) { usIPCSource &= ~usIsolationMask; if (pDrvData->IPCs[usPCNum - 1].usIntCount == 0) { pDrvData->IPCs[usPCNum - 1].usIntCount = 1; } if (pDrvData->IPCs[usPCNum - 1].bIsEnabled == true) { wake_up_interruptible(&pDrvData->IPCs[usPCNum - 1].ipc_wait_queue); } } if (usIPCSource == 0) break; /* try next IPC */ usIsolationMask = usIsolationMask << 1; } } return IRQ_HANDLED; } int tp3780I_InitializeBoardData(struct thinkpad_bd_data *pBDData) { int retval = 0; struct dsp_3780i_config_settings *pSettings = &pBDData->rDspSettings; pBDData->bDSPEnabled = false; pSettings->bInterruptClaimed = false; retval = smapi_init(); if (retval) { pr_err("%s: Error: SMAPI is not available on this machine\n", __func__); } else { if (mwave_3780i_irq || mwave_3780i_io || mwave_uart_irq || mwave_uart_io) { retval = smapi_set_DSP_cfg(); } } return retval; } void tp3780I_Cleanup(struct thinkpad_bd_data *pBDData) { } int tp3780I_CalcResources(struct thinkpad_bd_data *pBDData) { struct smapi_dsp_settings rSmapiInfo; struct dsp_3780i_config_settings *pSettings = &pBDData->rDspSettings; if (smapi_query_DSP_cfg(&rSmapiInfo)) { pr_err("%s: Error: Could not query DSP config. Aborting.\n", __func__); return -EIO; } /* Sanity check */ if ( ( rSmapiInfo.usDspIRQ == 0 ) || ( rSmapiInfo.usDspBaseIO == 0 ) || ( rSmapiInfo.usUartIRQ == 0 ) || ( rSmapiInfo.usUartBaseIO == 0 ) ) { pr_err("%s: Error: Illegal resource setting. Aborting.\n", __func__); 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; } return 0; } int tp3780I_ClaimResources(struct thinkpad_bd_data *pBDData) { int retval = 0; struct dsp_3780i_config_settings *pSettings = &pBDData->rDspSettings; struct resource *pres; pres = request_region(pSettings->usDspBaseIO, 16, "mwave_3780i"); if ( pres == NULL ) retval = -EIO; if (retval) { pr_err("%s: Error: Could not claim I/O region starting at %x\n", __func__, pSettings->usDspBaseIO); return -EIO; } return retval; } int tp3780I_ReleaseResources(struct thinkpad_bd_data *pBDData) { struct dsp_3780i_config_settings *pSettings = &pBDData->rDspSettings; release_region(pSettings->usDspBaseIO & (~3), 16); if (pSettings->bInterruptClaimed) { free_irq(pSettings->usDspIrq, NULL); pSettings->bInterruptClaimed = false; } return 0; } int tp3780I_EnableDSP(struct thinkpad_bd_data *pBDData) { struct dsp_3780i_config_settings *pSettings = &pBDData->rDspSettings; bool bDSPPoweredUp = false, bInterruptAllocated = false; if (pBDData->bDSPEnabled) { pr_err("%s: Error: DSP already enabled!\n", __func__); goto exit_cleanup; } if (!pSettings->bDSPEnabled) { pr_err("%s: Error: pSettings->bDSPEnabled not set\n", __func__); goto exit_cleanup; } if ( (pSettings->usDspIrq >= s_numIrqs) || (pSettings->usDspDma >= s_numDmas) || (s_ausThinkpadIrqToField[pSettings->usDspIrq] == 0xFFFF) || (s_ausThinkpadDmaToField[pSettings->usDspDma] == 0xFFFF) ) { pr_err("%s: Error: invalid irq %x\n", __func__, pSettings->usDspIrq); goto exit_cleanup; } if ( ((pSettings->usDspBaseIO & 0xF00F) != 0) || (pSettings->usDspBaseIO & 0x0FF0) == 0 ) { pr_err("%s: Error: Invalid DSP base I/O address %x\n", __func__, pSettings->usDspBaseIO); goto exit_cleanup; } if (pSettings->bModemEnabled) { if ( pSettings->usUartIrq >= s_numIrqs || s_ausThinkpadIrqToField[pSettings->usUartIrq] == 0xFFFF ) { pr_err("%s: Error: Invalid UART IRQ %x\n", __func__, pSettings->usUartIrq); goto exit_cleanup; } switch (pSettings->usUartBaseIO) { case 0x03F8: case 0x02F8: case 0x03E8: case 0x02E8: break; default: pr_err("%s: Error: Invalid UART base I/O address %x\n", __func__, 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)) { pr_err("%s: Error: Could not get UART IRQ %x\n", __func__, 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)) { pr_err("%s: Error: Could not get 3780i IRQ %x\n", __func__, pSettings->usDspIrq); goto exit_cleanup; } else { bInterruptAllocated = true; pSettings->bInterruptClaimed = true; } smapi_set_DSP_power_state(false); if (smapi_set_DSP_power_state(true)) { pr_err("%s: Error: smapi_set_DSP_power_state(true) failed\n", __func__); goto exit_cleanup; } else { bDSPPoweredUp = true; } if (dsp3780I_EnableDSP(pSettings, s_ausThinkpadIrqToField, s_ausThinkpadDmaToField)) { pr_err("%s: Error: dsp7880I_EnableDSP() failed\n", __func__); goto exit_cleanup; } EnableSRAM(pBDData); pBDData->bDSPEnabled = true; return 0; exit_cleanup: pr_err("%s: Cleaning up\n", __func__); if (bDSPPoweredUp) smapi_set_DSP_power_state(false); if (bInterruptAllocated) { free_irq(pSettings->usDspIrq, NULL); pSettings->bInterruptClaimed = false; } return -EIO; } int tp3780I_DisableDSP(struct thinkpad_bd_data *pBDData) { struct dsp_3780i_config_settings *pSettings = &pBDData->rDspSettings; 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; } return 0; } int tp3780I_ResetDSP(struct thinkpad_bd_data *pBDData) { struct dsp_3780i_config_settings *pSettings = &pBDData->rDspSettings; if (dsp3780I_Reset(pSettings) == 0) { EnableSRAM(pBDData); return 0; } return -EIO; } int tp3780I_StartDSP(struct thinkpad_bd_data *pBDData) { struct dsp_3780i_config_settings *pSettings = &pBDData->rDspSettings; if (dsp3780I_Run(pSettings) == 0) { // @BUG @TBD EnableSRAM(pBDData); } else { return -EIO; } return 0; } int tp3780I_QueryAbilities(struct thinkpad_bd_data *pBDData, struct mw_abilities *pAbilities) { 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)); return 0; } int tp3780I_ReadWriteDspDStore(struct thinkpad_bd_data *pBDData, unsigned int uOpcode, void __user *pvBuffer, unsigned int uCount, unsigned long ulDSPAddr) { struct dsp_3780i_config_settings *pSettings = &pBDData->rDspSettings; unsigned short usDspBaseIO = pSettings->usDspBaseIO; bool bRC = 0; 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; } } return bRC ? -EIO : 0; } int tp3780I_ReadWriteDspIStore(struct thinkpad_bd_data *pBDData, unsigned int uOpcode, void __user *pvBuffer, unsigned int uCount, unsigned long ulDSPAddr) { struct dsp_3780i_config_settings *pSettings = &pBDData->rDspSettings; unsigned short usDspBaseIO = pSettings->usDspBaseIO; bool bRC = 0; 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; } } return bRC ? -EIO : 0; }