//***************************************************************************** // // am_hal_mspi.c //! @file //! //! @brief Functions for interfacing with the MSPI. //! //! @addtogroup mspi3 Multi-bit SPI (MSPI) //! @ingroup apollo3hal //! @{ // //***************************************************************************** //***************************************************************************** // // Copyright (c) 2020, Ambiq Micro // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are met: // // 1. Redistributions of source code must retain the above copyright notice, // this list of conditions and the following disclaimer. // // 2. Redistributions in binary form must reproduce the above copyright // notice, this list of conditions and the following disclaimer in the // documentation and/or other materials provided with the distribution. // // 3. Neither the name of the copyright holder nor the names of its // contributors may be used to endorse or promote products derived from this // software without specific prior written permission. // // Third party software included in this distribution is subject to the // additional license terms as defined in the /docs/licenses directory. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS // INTERRUPTION) 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 OF THIS SOFTWARE, EVEN IF ADVISED OF THE // POSSIBILITY OF SUCH DAMAGE. // // This is part of revision 2.4.2 of the AmbiqSuite Development Package. // //***************************************************************************** #include #include #include "am_mcu_apollo.h" //***************************************************************************** // // Private Types. // //***************************************************************************** #define AM_HAL_MAGIC_MSPI 0xBEBEBE #define AM_HAL_MSPI_CHK_HANDLE(h) ((h) && ((am_hal_handle_prefix_t *)(h))->s.bInit && (((am_hal_handle_prefix_t *)(h))->s.magic == AM_HAL_MAGIC_MSPI)) #define AM_HAL_MSPI_HW_IDX_MAX (AM_REG_MSPI_CQCURIDX_CQCURIDX_M >> AM_REG_MSPI_CQCURIDX_CQCURIDX_S) // 8 bit value #define AM_HAL_MSPI_MAX_CQ_ENTRIES (256) // For MSPI - Need to Set the flag for unpausing #define AM_HAL_MSPI_SC_PAUSE_CQ AM_HAL_MSPI_SC_PAUSE(AM_HAL_MSPI_PAUSE_FLAG_CQ) #define AM_HAL_MSPI_SC_PAUSE_SEQLOOP AM_HAL_MSPI_SC_PAUSE(AM_HAL_MSPI_PAUSE_FLAG_SEQLOOP) #define AM_HAL_MSPI_SC_UNPAUSE_CQ AM_HAL_MSPI_SC_UNPAUSE(AM_HAL_MSPI_PAUSE_FLAG_CQ) #define AM_HAL_MSPI_SC_UNPAUSE_SEQLOOP AM_HAL_MSPI_SC_UNPAUSE(AM_HAL_MSPI_PAUSE_FLAG_SEQLOOP) #define AM_HAL_MSPI_SC_PAUSE_BLOCK AM_HAL_MSPI_SC_PAUSE(AM_HAL_MSPI_PAUSE_FLAG_BLOCK) #define AM_HAL_MSPI_SC_UNPAUSE_BLOCK AM_HAL_MSPI_SC_UNPAUSE(AM_HAL_MSPI_PAUSE_FLAG_BLOCK) // Max time to wait when attempting to pause the command queue #define AM_HAL_MSPI_MAX_PAUSE_DELAY (100*1000) // 100ms // // MSPI interface mode and chip enable selection. // This is an internal extension to am_hal_mspi_device_e // typedef enum { AM_HAL_MSPI_FLASH_DUAL_CE0_1_1_2 = AM_HAL_MSPI_FLASH_QUADPAIRED_SERIAL + 1, AM_HAL_MSPI_FLASH_DUAL_CE1_1_1_2, AM_HAL_MSPI_FLASH_DUAL_CE0_1_2_2, AM_HAL_MSPI_FLASH_DUAL_CE1_1_2_2, AM_HAL_MSPI_FLASH_QUAD_CE0_1_1_4, AM_HAL_MSPI_FLASH_QUAD_CE1_1_1_4, AM_HAL_MSPI_FLASH_QUAD_CE0_1_4_4, AM_HAL_MSPI_FLASH_QUAD_CE1_1_4_4, AM_HAL_MSPI_FLASH_SERIAL_CE0_3WIRE, AM_HAL_MSPI_FLASH_SERIAL_CE1_3WIRE, } mspi_device_e; // // Command Queue entry structure for DMA transfer. // typedef struct { #if MSPI_USE_CQ uint32_t ui32PAUSENAddr; uint32_t ui32PAUSEENVal; uint32_t ui32PAUSEN2Addr; uint32_t ui32PAUSEEN2Val; #endif #if !MSPI_USE_CQ // Need to disable the DMA before reconfiguring it uint32_t ui32DMACFG2Addr; uint32_t ui32DMACFG2Val; #endif uint32_t ui32DMATARGADDRAddr; uint32_t ui32DMATARGADDRVal; uint32_t ui32DMADEVADDRAddr; uint32_t ui32DMADEVADDRVal; uint32_t ui32DMATOTCOUNTAddr; uint32_t ui32DMATOTCOUNTVal; uint32_t ui32DMACFG1Addr; uint32_t ui32DMACFG1Val; #if MSPI_USE_CQ // Need to disable the DMA to prepare for next reconfig // Need to have this following the DMAEN for CMDQ uint32_t ui32DMACFG2Addr; uint32_t ui32DMACFG2Val; uint32_t ui32SETCLRAddr; uint32_t ui32SETCLRVal; #endif } am_hal_mspi_cq_dma_entry_t; // // structure for Hi Prio DMA transfer. // typedef struct { uint32_t ui32DMATARGADDRVal; uint32_t ui32DMADEVADDRVal; uint32_t ui32DMATOTCOUNTVal; uint32_t ui32DMACFG1Val; am_hal_mspi_callback_t pfnCallback; void *pCallbackCtxt; } am_hal_mspi_dma_entry_t; // // Command Queue entry structure for Sequence Repeat // typedef struct { uint32_t ui32PAUSENAddr; uint32_t ui32PAUSEENVal; uint32_t ui32PAUSEN2Addr; uint32_t ui32PAUSEEN2Val; uint32_t ui32SETCLRAddr; uint32_t ui32SETCLRVal; } am_hal_mspi_cq_loop_entry_t; // // Command Queue entry structure for PIO transfer. // typedef struct { uint32_t ui32ADDRAddr; uint32_t ui32ADDRVal; uint32_t ui32INSTRAddr; uint32_t ui32INSTRVal; uint32_t ui32CTRLAddr; uint32_t ui32CTRLVal; } am_hal_mspi_cq_pio_entry_t; typedef struct { bool bValid; uint32_t regCFG; uint32_t regMSPICFG; uint32_t regPADCFG; uint32_t regPADOUTEN; uint32_t regFLASH; uint32_t regSCRAMBLING; uint32_t regCQCFG; uint32_t regCQADDR; uint32_t regCQPAUSE; uint32_t regCQFLAGS; uint32_t regCQCURIDX; uint32_t regCQENDIDX; uint32_t regINTEN; // TODO: May be no need to preserve these values, as they are constants anyways? uint32_t regDMABCOUNT; uint32_t regDMATHRESH; } am_hal_mspi_register_state_t; // // Command Queue control structure. // typedef struct { void *pCmdQHdl; } am_hal_mspi_CQ_t; typedef enum { AM_HAL_MSPI_SEQ_NONE, AM_HAL_MSPI_SEQ_UNDER_CONSTRUCTION, AM_HAL_MSPI_SEQ_RUNNING, } am_hal_mspi_seq_e; // // MSPI State structure. // typedef struct { // // Handle validation prefix. // am_hal_handle_prefix_t prefix; // // Physical module number. // uint32_t ui32Module; // // Selected flash device configuration. // am_hal_mspi_device_e eDeviceConfig; // // Clock frequency // am_hal_mspi_clock_e eClockFreq; // // Endianess of the FIFO interface. // bool bBigEndian; // // Delay timeout value. // uint32_t waitTimeout; // DMA Transfer Control Buffer size in words. uint32_t ui32TCBSize; // DMA Transfer Control Buffer uint32_t *pTCB; uint32_t ui32LastIdxProcessed; uint32_t ui32NumCQEntries; uint32_t ui32TxnInt; // // Stores the CQ callbacks. // am_hal_mspi_callback_t pfnCallback[AM_HAL_MSPI_MAX_CQ_ENTRIES]; void *pCallbackCtxt[AM_HAL_MSPI_MAX_CQ_ENTRIES]; #if MSPI_USE_CQ // // Command Queue. // am_hal_mspi_CQ_t CQ; // To support sequence am_hal_mspi_seq_e eSeq; bool bAutonomous; uint32_t ui32NumTransactions; volatile bool bRestart; uint32_t block; // To support high priority transactions - out of band // High Priority DMA transactions volatile bool bHP; uint32_t ui32NumHPEntries; uint32_t ui32NumHPPendingEntries; uint32_t ui32MaxHPTransactions; uint32_t ui32NextHPIdx; uint32_t ui32LastHPIdxProcessed; am_hal_mspi_dma_entry_t *pHPTransactions; // Max pending transactions based on NB Buffer size uint32_t ui32MaxPending; // Number of back to back transactions with no callbacks uint32_t ui32NumUnSolicited; #else uint32_t ui32MaxTransactions; uint32_t ui32NextIdx; am_hal_mspi_cq_dma_entry_t *pTransactions; #endif // // MSPI Capabilities. // am_hal_mspi_capabilities_t capabilities; // Power Save-Restore register state am_hal_mspi_register_state_t registerState; } am_hal_mspi_state_t; //***************************************************************************** // // Global Variables. // //***************************************************************************** am_hal_mspi_state_t g_MSPIState[AM_REG_MSPI_NUM_MODULES]; #if !MSPI_USE_CQ void (*g_pfnDMACallback[AM_REG_MSPI_NUM_MODULES])(void); void *g_pCallbackCtxt[AM_REG_MSPI_NUM_MODULES]; #endif //!MSPI_USE_CQ //***************************************************************************** // // Internal Functions. // //***************************************************************************** static uint32_t get_pause_val(am_hal_mspi_state_t *pMSPIState, uint32_t pause) { uint32_t retval; switch (pMSPIState->block) { case 1: // Pause the CQ till the whole block is built retval = pause | AM_HAL_MSPI_CQP_PAUSE_DEFAULT | AM_HAL_MSPI_PAUSE_FLAG_BLOCK; pMSPIState->block = 2; break; case 2: // No pausing allowed retval = AM_HAL_MSPI_PAUSE_DEFAULT; break; default: // case 0 retval = pause | AM_HAL_MSPI_CQP_PAUSE_DEFAULT; } return retval; } uint32_t build_dma_cmdlist(am_hal_mspi_state_t *pMSPIState, am_hal_mspi_trans_e eMode, void *pCQEntry, void *pTransaction) { uint32_t ui32Module = pMSPIState->ui32Module; switch(eMode) { case AM_HAL_MSPI_TRANS_PIO: { am_hal_mspi_cq_pio_entry_t *pPIOEntry = (am_hal_mspi_cq_pio_entry_t*)pCQEntry; am_hal_mspi_pio_transfer_t *pPIOTrans = (am_hal_mspi_pio_transfer_t*)pTransaction; // // Perform some sanity checks on the transaction. // if (pPIOTrans->ui32NumBytes > 65535) { return AM_HAL_STATUS_OUT_OF_RANGE; } // // Command to set the CTRL register. // pPIOEntry->ui32ADDRAddr = (uint32_t)&MSPIn(ui32Module)->ADDR; pPIOEntry->ui32ADDRVal = _VAL2FLD(MSPI_ADDR_ADDR, pPIOTrans->ui32DeviceAddr); pPIOEntry->ui32INSTRAddr = (uint32_t)&MSPIn(ui32Module)->INSTR; pPIOEntry->ui32INSTRVal = _VAL2FLD(MSPI_INSTR_INSTR, pPIOTrans->ui16DeviceInstr); pPIOEntry->ui32CTRLAddr = (uint32_t)&MSPIn(ui32Module)->CTRL; pPIOEntry->ui32CTRLVal = _VAL2FLD(MSPI_CTRL_XFERBYTES, pPIOTrans->ui32NumBytes) | // Set the number of bytes to transfer. _VAL2FLD(MSPI_CTRL_PIOSCRAMBLE, pPIOTrans->bScrambling) | // Set the scrambling if selected. _VAL2FLD(MSPI_CTRL_TXRX, pPIOTrans->eDirection) | // Set transmit or receive operation. _VAL2FLD(MSPI_CTRL_SENDI, pPIOTrans->bSendInstr) | // Enable sending the instruction. _VAL2FLD(MSPI_CTRL_SENDA, pPIOTrans->bSendAddr) | // Enable sending the address. _VAL2FLD(MSPI_CTRL_ENTURN, pPIOTrans->bTurnaround) | // Set the turn-around if needed. _VAL2FLD(MSPI_CTRL_BIGENDIAN, pMSPIState->bBigEndian) | // Set the FIFO endian format. _VAL2FLD(MSPI_CTRL_QUADCMD, pPIOTrans->bQuadCmd) | // Set the Quad Command if indicated. _VAL2FLD(MSPI_CTRL_START, 1); // Start the transfer. } break; case AM_HAL_MSPI_TRANS_DMA: { am_hal_mspi_cq_dma_entry_t *pDMAEntry = (am_hal_mspi_cq_dma_entry_t *)pCQEntry; am_hal_mspi_dma_transfer_t *pDMATrans = (am_hal_mspi_dma_transfer_t *)pTransaction; // // Perform some sanity checks on the transaction. // if (pDMATrans->ui32TransferCount > 65535) { return AM_HAL_STATUS_OUT_OF_RANGE; } if (pMSPIState->block && (pDMATrans->ui32PauseCondition != 0)) { // Paused operations not allowed in block mode return AM_HAL_STATUS_INVALID_OPERATION; } // // Command to set the DMACFG to disable DMA. // Need to make sure we disable DMA before we can reprogram // pDMAEntry->ui32DMACFG2Addr = (uint32_t)&MSPIn(ui32Module)->DMACFG; pDMAEntry->ui32DMACFG2Val = _VAL2FLD(MSPI_DMACFG_DMAEN, 0); // // Command to set the DMATARGADDR // pDMAEntry->ui32DMATARGADDRAddr = (uint32_t)&MSPIn(ui32Module)->DMATARGADDR; pDMAEntry->ui32DMATARGADDRVal = pDMATrans->ui32SRAMAddress; // // Command to set the DMADEVADDR // pDMAEntry->ui32DMADEVADDRAddr = (uint32_t)&MSPIn(ui32Module)->DMADEVADDR; pDMAEntry->ui32DMADEVADDRVal = pDMATrans->ui32DeviceAddress; // // Command to set the DMATOTALCOUNT // pDMAEntry->ui32DMATOTCOUNTAddr = (uint32_t)&MSPIn(ui32Module)->DMATOTCOUNT; pDMAEntry->ui32DMATOTCOUNTVal = pDMATrans->ui32TransferCount; // // Command to set the DMACFG to start DMA. // pDMAEntry->ui32DMACFG1Addr = (uint32_t)&MSPIn(ui32Module)->DMACFG; pDMAEntry->ui32DMACFG1Val = _VAL2FLD(MSPI_DMACFG_DMAPWROFF, 0) | // DMA Auto Power-off not supported! _VAL2FLD(MSPI_DMACFG_DMAPRI, pDMATrans->ui8Priority) | _VAL2FLD(MSPI_DMACFG_DMADIR, pDMATrans->eDirection) | _VAL2FLD(MSPI_DMACFG_DMAEN, 3); #if MSPI_USE_CQ pDMAEntry->ui32PAUSENAddr = pDMAEntry->ui32PAUSEN2Addr = (uint32_t)&MSPIn(ui32Module)->CQPAUSE; pDMAEntry->ui32PAUSEENVal = get_pause_val(pMSPIState, pDMATrans->ui32PauseCondition); pDMAEntry->ui32PAUSEEN2Val = AM_HAL_MSPI_PAUSE_DEFAULT; pDMAEntry->ui32SETCLRVal = pDMATrans->ui32StatusSetClr; pDMAEntry->ui32SETCLRAddr = (uint32_t)&MSPIn(ui32Module)->CQSETCLEAR; #endif } break; } // // Return the status. // return AM_HAL_STATUS_SUCCESS; } //***************************************************************************** // //! @brief Writes data to the MSPI FIFO. //! //! @param ui32Module - Selects the MSPI module to use (zero or one). //! @param pui32Data - Pointer to an array of the data to be written. //! @param ui32NumBytes - Number of BYTES to copy into the FIFO. //! //! This function copies data from the array \e pui32Data into the MSPI FIFO. //! //! @return HAL status of the operation. // //***************************************************************************** static uint32_t mspi_fifo_write(uint32_t ui32Module, uint32_t *pui32Data, uint32_t ui32NumBytes, uint32_t ui32Timeout) { uint32_t ui32Index; uint32_t ui32Status = AM_HAL_STATUS_SUCCESS; // // Validate parameters // if ( ui32Module >= AM_REG_MSPI_NUM_MODULES ) { return AM_HAL_STATUS_OUT_OF_RANGE; } // // Loop over the words in the array until we have the correct number of // bytes. // for ( ui32Index = 0; (4 * ui32Index) < ui32NumBytes; ui32Index++ ) { // // Write the word to the FIFO. // MSPIn(ui32Module)->TXFIFO = pui32Data[ui32Index]; // // Wait for the word to go out if there is no room in the FIFO. // ui32Status = am_hal_flash_delay_status_check(ui32Timeout, (uint32_t)&MSPIn(ui32Module)->TXENTRIES, MSPI_TXENTRIES_TXENTRIES_Msk, _VAL2FLD(MSPI_TXENTRIES_TXENTRIES, AM_HAL_MSPI_MAX_FIFO_SIZE), false); } // // Return the status. // return ui32Status; } //***************************************************************************** // //! @brief Reads data from the MSPI FIFO. //! //! @param ui32Module - Selects the IOM module to use (zero or one). //! @param pui32Data - Pointer to an array where the FIFO data will be copied. //! @param ui32NumBytes - Number of bytes to copy into array. //! //! This function copies data from the MSPI FIFO into the array \e pui32Data. //! //! @return HAL status of the operation. // //***************************************************************************** static uint32_t mspi_fifo_read(uint32_t ui32Module, uint32_t *pui32Data, uint32_t ui32NumBytes, uint32_t ui32Timeout) { am_hal_mspi_buffer(4) sTempBuffer; uint32_t i, ui32NumWords, ui32Leftovers; uint32_t ui32Status; // // Validate parameters // if ( ui32Module >= AM_REG_MSPI_NUM_MODULES ) { return AM_HAL_STATUS_OUT_OF_RANGE; } // // Figure out how many whole words we're reading from the fifo, and how // many bytes will be left over when we're done. // ui32NumWords = ui32NumBytes / 4; ui32Leftovers = ui32NumBytes - (ui32NumWords * 4); // // Copy out as many full words as we can. // for ( i = 0; i < ui32NumWords; i++ ) { // // Wait for additinal entries in the MSPI RX FIFO. // ui32Status = am_hal_flash_delay_status_check(ui32Timeout, (uint32_t)&MSPIn(ui32Module)->RXENTRIES, MSPI_RXENTRIES_RXENTRIES_Msk, _VAL2FLD(MSPI_RXENTRIES_RXENTRIES, 0), false); // // Check for timeout // if (AM_HAL_STATUS_SUCCESS != ui32Status) { return ui32Status; } // // Copy data out of the FIFO, one word at a time. // pui32Data[i] = MSPIn(ui32Module)->RXFIFO; } // // If there were leftovers, we'll copy them carefully. Pull the last word // from the fifo (there should only be one) into a temporary buffer. Also, // create an 8-bit pointer to help us copy the remaining bytes one at a // time. // // Note: If the data buffer we were given was truly a word pointer like the // definition requests, we wouldn't need to do this. It's possible to call // this function with a re-cast or packed pointer instead though. If that // happens, we want to be careful not to overwrite any data that might be // sitting just past the end of the destination array. // if ( ui32Leftovers ) { // // Wait for additinal entries in the MSPI RX FIFO. // ui32Status = am_hal_flash_delay_status_check(ui32Timeout, (uint32_t)&MSPIn(ui32Module)->RXENTRIES, MSPI_RXENTRIES_RXENTRIES_Msk, _VAL2FLD(MSPI_RXENTRIES_RXENTRIES, 0), false); // // Check for timeout // if (AM_HAL_STATUS_SUCCESS != ui32Status) { return ui32Status; } // // Read the next word from the RX FIFO. // sTempBuffer.words[0] = MSPIn(ui32Module)->RXFIFO; uint8_t *pui8Data; pui8Data = (uint8_t *) (&pui32Data[i]); // // If we had leftover bytes, copy them out one byte at a time. // for ( int j = 0; j < ui32Leftovers; j++ ) { pui8Data[j] = sTempBuffer.bytes[j]; } } return AM_HAL_STATUS_SUCCESS; } #if !MSPI_USE_CQ static void run_txn_cmdlist(void *pCQEntry, uint32_t numEntries) { uint32_t ix; am_hal_cmdq_entry_t *pCmd = (am_hal_cmdq_entry_t *)pCQEntry; for ( ix = 0; ix < numEntries; ix++, pCmd++ ) { *((uint32_t *)pCmd->address) = pCmd->value; } } // run_txn_cmdlist() static uint32_t mspi_dma_add_transaction(void *pHandle, am_hal_mspi_dma_transfer_t *psTransaction, am_hal_mspi_callback_t pfnCallback, void *pCallbackCtxt) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; am_hal_mspi_cq_dma_entry_t *pCQEntry; uint32_t index = pMSPIState->ui32NextIdx % pMSPIState->ui32MaxTransactions; // // Check to see if there is enough room in the queue // if ( pMSPIState->ui32NumCQEntries == pMSPIState->ui32MaxTransactions ) { return AM_HAL_STATUS_OUT_OF_RANGE; } pCQEntry = &pMSPIState->pTransactions[index]; if (AM_HAL_STATUS_SUCCESS != build_dma_cmdlist(pMSPIState, AM_HAL_MSPI_TRANS_DMA, pCQEntry, (void *)psTransaction)) { return AM_HAL_STATUS_FAIL; } // // Store the callback function pointer. // pMSPIState->pfnCallback[index] = pfnCallback; pMSPIState->pCallbackCtxt[index] = pCallbackCtxt; pMSPIState->ui32NextIdx++; return AM_HAL_STATUS_SUCCESS; } // am_hal_mspi_DmaAddTransaction() #else //***************************************************************************** // //! @brief Initializes the MSPI Command Queue. //! //! @param handle - handle for the interface. //! @param ui32Length - length of the SRAM Command Queue buffer in words. //! @param pTCB - pointer to the SRAM to use for the Command Queue. //! //! This function initializes the global command queue structure. //! //! @return HAL status of the operation. // // //***************************************************************************** static uint32_t mspi_cq_init(uint32_t ui32Module, uint32_t ui32Length, uint32_t *pTCB) { am_hal_cmdq_cfg_t cqCfg; cqCfg.pCmdQBuf = pTCB; cqCfg.cmdQSize = ui32Length / 2; cqCfg.priority = AM_HAL_CMDQ_PRIO_HI; return am_hal_cmdq_init((am_hal_cmdq_if_e)(AM_HAL_CMDQ_IF_MSPI + ui32Module), &cqCfg, &g_MSPIState[ui32Module].CQ.pCmdQHdl); } //***************************************************************************** // //! @brief Terminates the MSPI Command Queue. //! //! @param ui32Module - MSPI instance. //! //! This function resets the global command queue structure. //! //! @return HAL status of the operation. // // //***************************************************************************** static uint32_t mspi_cq_term(void *pHandle) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; uint32_t ui32Module = pMSPIState->ui32Module; if (g_MSPIState[ui32Module].CQ.pCmdQHdl) { am_hal_cmdq_term(g_MSPIState[ui32Module].CQ.pCmdQHdl, true); g_MSPIState[ui32Module].CQ.pCmdQHdl = NULL; } // // Return the status. // return AM_HAL_STATUS_SUCCESS; } //***************************************************************************** // //! @brief Adds a transaction the MSPI Command Queue. //! //! @param handle - handle for the interface. //! @param pTransaction - transaction to add to the CQ //! @param pfnCallback - pointer the callback function to be executed when //! transaction is complete. //! @param pCallbackCtxt- pointer to the state/context to pass to callback //! function. //! //! This function copies data from the IOM FIFO into the array \e pui32Data. //! This is how input data from SPI or I2C transactions may be retrieved. //! //! //! @return HAL status of the operation. // // //***************************************************************************** static uint32_t mspi_cq_add_transaction(void *pHandle, void *pTransaction, am_hal_mspi_trans_e eMode, am_hal_mspi_callback_t pfnCallback, void *pCallbackCtxt) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; am_hal_cmdq_entry_t *pCQBlock; uint32_t index; uint32_t size = 1; am_hal_mspi_CQ_t *pCQ = &pMSPIState->CQ; uint32_t ui32Status = AM_HAL_STATUS_SUCCESS; // // Determine the transfer mode and set up accordingly. // switch(eMode) { case AM_HAL_MSPI_TRANS_PIO: size = sizeof(am_hal_mspi_cq_pio_entry_t); break; case AM_HAL_MSPI_TRANS_DMA: size = sizeof(am_hal_mspi_cq_dma_entry_t); break; } // // Check to see if there is enough room in the CQ // if (pMSPIState->ui32NumCQEntries == AM_HAL_MSPI_MAX_CQ_ENTRIES) { return AM_HAL_STATUS_OUT_OF_RANGE; } ui32Status = am_hal_cmdq_alloc_block(pCQ->pCmdQHdl, size / 8, &pCQBlock, &index); if (ui32Status != AM_HAL_STATUS_SUCCESS) { return ui32Status; } ui32Status = build_dma_cmdlist(pMSPIState, eMode, pCQBlock, pTransaction); if (ui32Status != AM_HAL_STATUS_SUCCESS) { am_hal_cmdq_release_block(pCQ->pCmdQHdl); return ui32Status; } // // Because we set AM_HAL_IOM_CQUPD_INT_FLAG, an interrupt will occur once // we reach this point in the Command Queue. In the service routine, we'll // look for the appropriate callback. // // If ENDIDX has been reached, the CQ will pause here. Otherwise will // continue with the next CQ entry. // // // Store the callback function pointer. // pMSPIState->pfnCallback[index & (AM_HAL_MSPI_MAX_CQ_ENTRIES - 1)] = pfnCallback; pMSPIState->pCallbackCtxt[index & (AM_HAL_MSPI_MAX_CQ_ENTRIES - 1)] = pCallbackCtxt; // // Return the status. // return ui32Status; } //***************************************************************************** // //! @brief Enable the Command Queue operation. //! //! @param handle - handle for the interface. //! //! This function enables Command Queue operation. //! //! //! @return HAL status of the operation. // // //***************************************************************************** static uint32_t mspi_cq_enable(void *pHandle) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; // // Enable the Command Queue operation // return am_hal_cmdq_enable(pMSPIState->CQ.pCmdQHdl); } //***************************************************************************** // //! @brief Disable the Command Queue operation. //! //! @param handle - handle for the interface. //! //! This function disables the Command Queue operation. //! //! //! @return HAL status of the operation. // // //***************************************************************************** static uint32_t mspi_cq_disable(void *pHandle) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; // // Disable the Command Queue operation // return am_hal_cmdq_disable(pMSPIState->CQ.pCmdQHdl); } static uint32_t mspi_cq_pause(am_hal_mspi_state_t *pMSPIState) { uint32_t status = AM_HAL_STATUS_SUCCESS; uint32_t ui32usMaxDelay = AM_HAL_MSPI_MAX_PAUSE_DELAY; MSPIn(pMSPIState->ui32Module)->CQSETCLEAR = AM_HAL_MSPI_SC_PAUSE_CQ; // It is possible that CQ is disabled once the last transaction is processed while ( MSPIn(pMSPIState->ui32Module)->CQCFG_b.CQEN ) { // Need to make sure we're paused at a designated pause point if ( MSPIn(pMSPIState->ui32Module)->CQSTAT_b.CQPAUSED && (MSPIn(pMSPIState->ui32Module)->CQPAUSE & AM_HAL_MSPI_PAUSE_FLAG_CQ)) { break; } if ( ui32usMaxDelay-- ) { // // Call the BOOTROM cycle function to delay for about 1 microsecond. // am_hal_flash_delay( FLASH_CYCLES_US(1) ); } else { return AM_HAL_STATUS_TIMEOUT; } } if (status == AM_HAL_STATUS_SUCCESS) { // Now that CQ is guaranteed to not progress further - we need to still wait in case the current CQ entry // resulted in a DMA state....need to make sure we finish the current DMA status = am_hal_flash_delay_status_check(AM_HAL_MSPI_MAX_PAUSE_DELAY, (uint32_t)&MSPIn(pMSPIState->ui32Module)->DMASTAT, MSPI_DMASTAT_DMATIP_Msk, _VAL2FLD(MSPI_DMASTAT_DMATIP, 0), true); } return status; } static void program_dma(void *pHandle) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; uint32_t ui32Module = pMSPIState->ui32Module; uint32_t index = (pMSPIState->ui32LastHPIdxProcessed + 1) % pMSPIState->ui32MaxHPTransactions; am_hal_mspi_dma_entry_t *pDMAEntry = &pMSPIState->pHPTransactions[index]; // Need to make sure we disable DMA before we can reprogram MSPIn(ui32Module)->DMACFG = _VAL2FLD(MSPI_DMACFG_DMAEN, 0); // // set the DMATARGADDR // MSPIn(ui32Module)->DMATARGADDR = pDMAEntry->ui32DMATARGADDRVal; // // set the DMADEVADDR // MSPIn(ui32Module)->DMADEVADDR = pDMAEntry->ui32DMADEVADDRVal; // // set the DMATOTALCOUNT // MSPIn(ui32Module)->DMATOTCOUNT = pDMAEntry->ui32DMATOTCOUNTVal; // // set the DMACFG to start DMA. // MSPIn(ui32Module)->DMACFG = pDMAEntry->ui32DMACFG1Val; } static uint32_t sched_hiprio(am_hal_mspi_state_t *pMSPIState, uint32_t numTrans) { uint32_t ui32NumPend; uint32_t ui32Status = AM_HAL_STATUS_SUCCESS; // // Start a critical section. // AM_CRITICAL_BEGIN ui32NumPend = pMSPIState->ui32NumHPEntries; pMSPIState->ui32NumHPEntries += numTrans; // // End the critical section. // AM_CRITICAL_END if (0 == ui32NumPend) { // Force CQ to Pause ui32Status = mspi_cq_pause(pMSPIState); if (ui32Status != AM_HAL_STATUS_SUCCESS) { return ui32Status; } pMSPIState->ui32TxnInt = 0; // Clear DMACMP interrupt MSPIn(pMSPIState->ui32Module)->INTCLR = AM_HAL_MSPI_INT_DMACMP | AM_HAL_MSPI_INT_CMDCMP; // Enable DMACMP interrupt MSPIn(pMSPIState->ui32Module)->INTEN |= AM_HAL_MSPI_INT_DMACMP | AM_HAL_MSPI_INT_CMDCMP; pMSPIState->bHP = true; // // Program the DMA // program_dma(pMSPIState); } return ui32Status; } static uint32_t mspi_add_hp_transaction(void *pHandle, am_hal_mspi_dma_transfer_t *pDMATrans, am_hal_mspi_callback_t pfnCallback, void *pCallbackCtxt) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; am_hal_mspi_dma_entry_t *pDMAEntry; uint32_t index = pMSPIState->ui32NextHPIdx % pMSPIState->ui32MaxHPTransactions; // // Check to see if there is enough room in the queue // if ( pMSPIState->ui32NumHPEntries == pMSPIState->ui32MaxHPTransactions ) { return AM_HAL_STATUS_OUT_OF_RANGE; } pDMAEntry = &pMSPIState->pHPTransactions[index]; pDMAEntry->ui32DMATARGADDRVal = pDMATrans->ui32SRAMAddress; pDMAEntry->ui32DMADEVADDRVal = pDMATrans->ui32DeviceAddress; pDMAEntry->ui32DMATOTCOUNTVal = pDMATrans->ui32TransferCount; pDMAEntry->ui32DMACFG1Val = _VAL2FLD(MSPI_DMACFG_DMAPWROFF, 0) | // DMA Auto Power-off not supported! _VAL2FLD(MSPI_DMACFG_DMAPRI, pDMATrans->ui8Priority) | _VAL2FLD(MSPI_DMACFG_DMADIR, pDMATrans->eDirection) | _VAL2FLD(MSPI_DMACFG_DMAEN, 3); pDMAEntry->pfnCallback = pfnCallback; pDMAEntry->pCallbackCtxt = pCallbackCtxt; pMSPIState->ui32NextHPIdx++; return AM_HAL_STATUS_SUCCESS; } // am_hal_mspi_DmaAddTransaction() #endif //***************************************************************************** // //! @brief Determine the virtual device configuration //! //! @param handle - handle for the interface. //! @param eMSPIDevice - external device configuration for MSPI //! //! @return virtual device value. // // //***************************************************************************** // // MSPI interface mode and chip enable selection. // This is an internal extension to am_hal_mspi_device_e // static uint32_t mspi_virtual_device(mspi_device_info_t *pMSPIDeviceInfo, uint32_t *pVirtDevice) { // // Check that the Device Config is in the proper range. // if (pMSPIDeviceInfo->eDeviceConfig > AM_HAL_MSPI_FLASH_MAX) { return AM_HAL_STATUS_INVALID_ARG; } switch(pMSPIDeviceInfo->eXipMixedMode) { case AM_HAL_MSPI_XIPMIXED_NORMAL: { // if Serial CE0 or CE1, check for separate I/O. if ( (AM_HAL_MSPI_FLASH_SERIAL_CE0 == pMSPIDeviceInfo->eDeviceConfig) || (AM_HAL_MSPI_FLASH_SERIAL_CE1 == pMSPIDeviceInfo->eDeviceConfig) ) { // if serial mode, but not separate I/O , then calculate 3WIRE mode value. if (!pMSPIDeviceInfo->bSeparateIO) { *pVirtDevice = (uint32_t)pMSPIDeviceInfo->eDeviceConfig + AM_HAL_MSPI_FLASH_SERIAL_CE0_3WIRE - AM_HAL_MSPI_FLASH_SERIAL_CE0; return AM_HAL_STATUS_SUCCESS; } else { // Otherwise return the original eDeviceConfig. *pVirtDevice = pMSPIDeviceInfo->eDeviceConfig; return AM_HAL_STATUS_SUCCESS; } } else { // Otherwise return the original eDeviceConfig. *pVirtDevice = pMSPIDeviceInfo->eDeviceConfig; return AM_HAL_STATUS_SUCCESS; } } break; case AM_HAL_MSPI_XIPMIXED_D2: if ( (AM_HAL_MSPI_FLASH_SERIAL_CE0 == pMSPIDeviceInfo->eDeviceConfig) || (AM_HAL_MSPI_FLASH_SERIAL_CE1 == pMSPIDeviceInfo->eDeviceConfig) ) { *pVirtDevice = (uint32_t)pMSPIDeviceInfo->eDeviceConfig + AM_HAL_MSPI_FLASH_DUAL_CE0_1_1_2 - AM_HAL_MSPI_FLASH_SERIAL_CE0; return AM_HAL_STATUS_SUCCESS; } else { return AM_HAL_STATUS_INVALID_ARG; } break; case AM_HAL_MSPI_XIPMIXED_AD2: if ( (AM_HAL_MSPI_FLASH_SERIAL_CE0 == pMSPIDeviceInfo->eDeviceConfig) || (AM_HAL_MSPI_FLASH_SERIAL_CE1 == pMSPIDeviceInfo->eDeviceConfig) ) { *pVirtDevice = (uint32_t)pMSPIDeviceInfo->eDeviceConfig + AM_HAL_MSPI_FLASH_DUAL_CE0_1_2_2 - AM_HAL_MSPI_FLASH_SERIAL_CE0; return AM_HAL_STATUS_SUCCESS; } else { return AM_HAL_STATUS_INVALID_ARG; } break; case AM_HAL_MSPI_XIPMIXED_D4: if ( (AM_HAL_MSPI_FLASH_SERIAL_CE0 == pMSPIDeviceInfo->eDeviceConfig) || (AM_HAL_MSPI_FLASH_SERIAL_CE1 == pMSPIDeviceInfo->eDeviceConfig) ) { *pVirtDevice = (uint32_t)pMSPIDeviceInfo->eDeviceConfig + AM_HAL_MSPI_FLASH_QUAD_CE0_1_1_4 - AM_HAL_MSPI_FLASH_SERIAL_CE0; return AM_HAL_STATUS_SUCCESS; } else { return AM_HAL_STATUS_INVALID_ARG; } break; case AM_HAL_MSPI_XIPMIXED_AD4: if ( (AM_HAL_MSPI_FLASH_SERIAL_CE0 == pMSPIDeviceInfo->eDeviceConfig) || (AM_HAL_MSPI_FLASH_SERIAL_CE1 == pMSPIDeviceInfo->eDeviceConfig) ) { *pVirtDevice = (uint32_t)pMSPIDeviceInfo->eDeviceConfig + AM_HAL_MSPI_FLASH_QUAD_CE0_1_4_4 - AM_HAL_MSPI_FLASH_SERIAL_CE0; return AM_HAL_STATUS_SUCCESS; } else { return AM_HAL_STATUS_INVALID_ARG; } break; default: return AM_HAL_STATUS_INVALID_ARG; } } //***************************************************************************** // //! @brief Configure the device config, seperate I/O, mixed mode, and internal //! PADs based on the virtual device configuration passed in. //! //! @param handle - handle for the interface. //! @param eMSPIDevice - external device configuration for MSPI //! //! @return HAL status of the operation. // // //***************************************************************************** static uint32_t mspi_device_configure(void *pHandle, uint32_t ui32MSPIDevice) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; uint32_t ui32Module = pMSPIState->ui32Module; switch ( ui32MSPIDevice ) { case AM_HAL_MSPI_FLASH_SERIAL_CE0: MSPIn(ui32Module)->CFG_b.DEVCFG = MSPI_CFG_DEVCFG_SERIAL0; MSPIn(ui32Module)->CFG_b.SEPIO = 1; MSPIn(ui32Module)->FLASH_b.XIPMIXED = 0; MSPIn(ui32Module)->PADCFG = 0; MSPIn(ui32Module)->PADOUTEN = 0x103; break; case AM_HAL_MSPI_FLASH_SERIAL_CE1: MSPIn(ui32Module)->CFG_b.DEVCFG = MSPI_CFG_DEVCFG_SERIAL1; MSPIn(ui32Module)->CFG_b.SEPIO = 1; MSPIn(ui32Module)->FLASH_b.XIPMIXED = 0; MSPIn(ui32Module)->PADCFG = 0; MSPIn(ui32Module)->PADOUTEN = 0x130; break; case AM_HAL_MSPI_FLASH_DUAL_CE0: MSPIn(ui32Module)->CFG_b.DEVCFG = MSPI_CFG_DEVCFG_DUAL0; MSPIn(ui32Module)->CFG_b.SEPIO = 0; MSPIn(ui32Module)->FLASH_b.XIPMIXED = 0; MSPIn(ui32Module)->PADCFG = 0; MSPIn(ui32Module)->PADOUTEN = 0x103; break; case AM_HAL_MSPI_FLASH_DUAL_CE1: MSPIn(ui32Module)->CFG_b.DEVCFG = MSPI_CFG_DEVCFG_DUAL1; MSPIn(ui32Module)->CFG_b.SEPIO = 0; MSPIn(ui32Module)->FLASH_b.XIPMIXED = 0; MSPIn(ui32Module)->PADCFG = 0; MSPIn(ui32Module)->PADOUTEN = 0x130; break; case AM_HAL_MSPI_FLASH_QUAD_CE0: MSPIn(ui32Module)->CFG_b.DEVCFG = MSPI_CFG_DEVCFG_QUAD0; MSPIn(ui32Module)->CFG_b.SEPIO = 0; MSPIn(ui32Module)->FLASH_b.XIPMIXED = 0; MSPIn(ui32Module)->PADCFG = 0; MSPIn(ui32Module)->PADOUTEN = 0x10F; break; case AM_HAL_MSPI_FLASH_QUAD_CE1: MSPIn(ui32Module)->CFG_b.DEVCFG = MSPI_CFG_DEVCFG_QUAD1; MSPIn(ui32Module)->CFG_b.SEPIO = 0; MSPIn(ui32Module)->FLASH_b.XIPMIXED = 0; MSPIn(ui32Module)->PADCFG = 0; MSPIn(ui32Module)->PADOUTEN = 0x1F0; break; case AM_HAL_MSPI_FLASH_OCTAL_CE0: MSPIn(ui32Module)->CFG_b.DEVCFG = MSPI_CFG_DEVCFG_OCTAL0; MSPIn(ui32Module)->CFG_b.SEPIO = 0; MSPIn(ui32Module)->FLASH_b.XIPMIXED = 0; MSPIn(ui32Module)->PADCFG = 0; MSPIn(ui32Module)->PADOUTEN = 0x1FF; break; case AM_HAL_MSPI_FLASH_OCTAL_CE1: MSPIn(ui32Module)->CFG_b.DEVCFG = MSPI_CFG_DEVCFG_OCTAL1; MSPIn(ui32Module)->CFG_b.SEPIO = 0; MSPIn(ui32Module)->FLASH_b.XIPMIXED = 0; MSPIn(ui32Module)->PADCFG = 0; MSPIn(ui32Module)->PADOUTEN = 0x1FF; break; case AM_HAL_MSPI_FLASH_QUADPAIRED: case AM_HAL_MSPI_FLASH_QUADPAIRED_SERIAL: return AM_HAL_STATUS_INVALID_ARG; break; case AM_HAL_MSPI_FLASH_DUAL_CE0_1_1_2: MSPIn(ui32Module)->CFG_b.DEVCFG = MSPI_CFG_DEVCFG_SERIAL0; MSPIn(ui32Module)->CFG_b.SEPIO = 0; MSPIn(ui32Module)->FLASH_b.XIPMIXED = 1; MSPIn(ui32Module)->PADCFG = 0; MSPIn(ui32Module)->PADOUTEN = 0x103; break; case AM_HAL_MSPI_FLASH_DUAL_CE1_1_1_2: MSPIn(ui32Module)->CFG_b.DEVCFG = MSPI_CFG_DEVCFG_SERIAL1; MSPIn(ui32Module)->CFG_b.SEPIO = 0; MSPIn(ui32Module)->FLASH_b.XIPMIXED = 1; MSPIn(ui32Module)->PADCFG = 0; MSPIn(ui32Module)->PADOUTEN = 0x130; break; case AM_HAL_MSPI_FLASH_DUAL_CE0_1_2_2: MSPIn(ui32Module)->CFG_b.DEVCFG = MSPI_CFG_DEVCFG_SERIAL0; MSPIn(ui32Module)->CFG_b.SEPIO = 0; MSPIn(ui32Module)->FLASH_b.XIPMIXED = 3; MSPIn(ui32Module)->PADCFG = 0; MSPIn(ui32Module)->PADOUTEN = 0x103; break; case AM_HAL_MSPI_FLASH_DUAL_CE1_1_2_2: MSPIn(ui32Module)->CFG_b.DEVCFG = MSPI_CFG_DEVCFG_SERIAL1; MSPIn(ui32Module)->CFG_b.SEPIO = 0; MSPIn(ui32Module)->FLASH_b.XIPMIXED = 3; MSPIn(ui32Module)->PADCFG = 0; MSPIn(ui32Module)->PADOUTEN = 0x130; break; case AM_HAL_MSPI_FLASH_QUAD_CE0_1_1_4: MSPIn(ui32Module)->CFG_b.DEVCFG = MSPI_CFG_DEVCFG_SERIAL0; MSPIn(ui32Module)->CFG_b.SEPIO = 0; MSPIn(ui32Module)->FLASH_b.XIPMIXED = 5; MSPIn(ui32Module)->PADCFG = 0; MSPIn(ui32Module)->PADOUTEN = 0x10F; break; case AM_HAL_MSPI_FLASH_QUAD_CE1_1_1_4: MSPIn(ui32Module)->CFG_b.DEVCFG = MSPI_CFG_DEVCFG_SERIAL1; MSPIn(ui32Module)->CFG_b.SEPIO = 0; MSPIn(ui32Module)->FLASH_b.XIPMIXED = 5; MSPIn(ui32Module)->PADCFG = 0; MSPIn(ui32Module)->PADOUTEN = 0x1F0; break; case AM_HAL_MSPI_FLASH_QUAD_CE0_1_4_4: MSPIn(ui32Module)->CFG_b.DEVCFG = MSPI_CFG_DEVCFG_SERIAL0; MSPIn(ui32Module)->CFG_b.SEPIO = 0; MSPIn(ui32Module)->FLASH_b.XIPMIXED = 7; MSPIn(ui32Module)->PADCFG = 0; MSPIn(ui32Module)->PADOUTEN = 0x10F; break; case AM_HAL_MSPI_FLASH_QUAD_CE1_1_4_4: MSPIn(ui32Module)->CFG_b.DEVCFG = MSPI_CFG_DEVCFG_SERIAL1; MSPIn(ui32Module)->CFG_b.SEPIO = 0; MSPIn(ui32Module)->FLASH_b.XIPMIXED = 7; MSPIn(ui32Module)->PADCFG = 0; MSPIn(ui32Module)->PADOUTEN = 0x1F0; break; case AM_HAL_MSPI_FLASH_SERIAL_CE0_3WIRE: MSPIn(ui32Module)->CFG_b.DEVCFG = MSPI_CFG_DEVCFG_SERIAL0; MSPIn(ui32Module)->CFG_b.SEPIO = 0; MSPIn(ui32Module)->FLASH_b.XIPMIXED = 0; MSPIn(ui32Module)->PADCFG = 0; // Enable both D0 and D1 - as D1 might be getting used for DCX MSPIn(ui32Module)->PADOUTEN = 0x103; break; case AM_HAL_MSPI_FLASH_SERIAL_CE1_3WIRE: MSPIn(ui32Module)->CFG_b.DEVCFG = MSPI_CFG_DEVCFG_SERIAL1; MSPIn(ui32Module)->CFG_b.SEPIO = 0; MSPIn(ui32Module)->FLASH_b.XIPMIXED = 0; MSPIn(ui32Module)->PADCFG = 0; // Enable both D0 and D1 - as D1 might be getting used for DCX MSPIn(ui32Module)->PADOUTEN = 0x130; break; default: break; } // // Return the status. // return AM_HAL_STATUS_SUCCESS; } static void mspi_dummy_callback(void *pCallbackCtxt, uint32_t status) { // Dummy - Do nothing } static void mspi_seq_loopback(void *pCallbackCtxt, uint32_t status) { // Reset the state to allow serving callbacks for next set am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pCallbackCtxt; pMSPIState->ui32NumCQEntries = pMSPIState->ui32NumTransactions + 1; pMSPIState->ui32LastIdxProcessed = 0; pMSPIState->bRestart = true; // Now resume the CQ - to finish loopback // Resume the CQ MSPIn(pMSPIState->ui32Module)->CQSETCLEAR = AM_HAL_MSPI_SC_UNPAUSE_SEQLOOP; } //***************************************************************************** // // External Functions. // //***************************************************************************** // // MSPI initialization function // uint32_t am_hal_mspi_initialize(uint32_t ui32Module, void **ppHandle) { // Compile time check to ensure ENTRY_SIZE macros are defined correctly // incorrect definition will cause divide by 0 error at build time am_ct_assert((sizeof(am_hal_mspi_cq_dma_entry_t) + 8) == AM_HAL_MSPI_CQ_ENTRY_SIZE); am_ct_assert(sizeof(am_hal_mspi_dma_entry_t) == AM_HAL_MSPI_HIPRIO_ENTRY_SIZE); #ifndef AM_HAL_DISABLE_API_VALIDATION // // Check that the request module is in range. // if (ui32Module >= AM_REG_MSPI_NUM_MODULES ) { return AM_HAL_STATUS_OUT_OF_RANGE; } // // Check for valid arguements. // if (!ppHandle) { return AM_HAL_STATUS_INVALID_ARG; } // // Check if the handle is unallocated. // if (g_MSPIState[ui32Module].prefix.s.bInit) { return AM_HAL_STATUS_INVALID_OPERATION; } #endif // AM_HAL_DISABLE_API_VALIDATION // // Initialize the handle. // g_MSPIState[ui32Module].prefix.s.bInit = true; g_MSPIState[ui32Module].prefix.s.magic = AM_HAL_MAGIC_MSPI; g_MSPIState[ui32Module].ui32Module = ui32Module; // // Return the handle. // *ppHandle = (void *)&g_MSPIState[ui32Module]; // // Return the status. // return AM_HAL_STATUS_SUCCESS; } // // MSPI Disable function // uint32_t am_hal_mspi_disable(void *pHandle) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; uint32_t ui32Status; #ifndef AM_HAL_DISABLE_API_VALIDATION // // Check the handle. // if (!AM_HAL_MSPI_CHK_HANDLE(pHandle)) { return AM_HAL_STATUS_INVALID_HANDLE; } #endif // AM_HAL_DISABLE_API_VALIDATION if (!pMSPIState->prefix.s.bEnable) { return AM_HAL_STATUS_SUCCESS; } #if MSPI_USE_CQ if (pMSPIState->pTCB) { // // Disable the Command Queue. // ui32Status = mspi_cq_disable(pHandle); if (AM_HAL_STATUS_SUCCESS != ui32Status) { return ui32Status; } // // Reset the Command Queue. // mspi_cq_term(pHandle); } #endif // MSPI_USE_CQ pMSPIState->prefix.s.bEnable = false; // // Return the status. // return AM_HAL_STATUS_SUCCESS; } // // MSPI Deinitialize function // uint32_t am_hal_mspi_deinitialize(void *pHandle) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; #ifndef AM_HAL_DISABLE_API_VALIDATION // // Check the handle. // if (!AM_HAL_MSPI_CHK_HANDLE(pHandle)) { return AM_HAL_STATUS_INVALID_HANDLE; } #endif // AM_HAL_DISABLE_API_VALIDATION if (pMSPIState->prefix.s.bEnable) { am_hal_mspi_disable(pHandle); } // // Reset the handle. // pMSPIState->prefix.s.bInit = false; pMSPIState->ui32Module = 0; pMSPIState->eDeviceConfig = (am_hal_mspi_device_e)0; // // Return the status. // return AM_HAL_STATUS_SUCCESS; } // // MSPI device configuration function // uint32_t am_hal_mspi_device_configure(void *pHandle, am_hal_mspi_dev_config_t *pConfig) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; uint32_t ui32Module; uint32_t ui32Config = 0; #ifndef AM_HAL_DISABLE_API_VALIDATION // // Check the handle. // if (!AM_HAL_MSPI_CHK_HANDLE(pHandle)) { return AM_HAL_STATUS_INVALID_HANDLE; } // // Configure not allowed in Enabled state // if (pMSPIState->prefix.s.bEnable) { return AM_HAL_STATUS_INVALID_OPERATION; } #endif // AM_HAL_DISABLE_API_VALIDATION ui32Module = pMSPIState->ui32Module; // // Set the clock polarity and phase based on SPI mode. // switch(pConfig->eSpiMode) { case AM_HAL_MSPI_SPI_MODE_0: // CPOL = 0; CPHA = 0 ui32Config |= _VAL2FLD(MSPI_CFG_CPOL, 0) | _VAL2FLD(MSPI_CFG_CPHA, 0); break; case AM_HAL_MSPI_SPI_MODE_2: // CPOL = 1; CPHA = 0 ui32Config |= _VAL2FLD(MSPI_CFG_CPOL, 1) | _VAL2FLD(MSPI_CFG_CPHA, 0); break; case AM_HAL_MSPI_SPI_MODE_1: // CPOL = 0; CPHA = 1 ui32Config |= _VAL2FLD(MSPI_CFG_CPOL, 0) | _VAL2FLD(MSPI_CFG_CPHA, 1); break; case AM_HAL_MSPI_SPI_MODE_3: // CPOL = 1; CPHA = 1 ui32Config |= _VAL2FLD(MSPI_CFG_CPOL, 1) | _VAL2FLD(MSPI_CFG_CPHA, 1); break; } // // Set the number of turn-around cycles. // ui32Config |= _VAL2FLD(MSPI_CFG_TURNAROUND, pConfig->ui8TurnAround); // // Set the address configuration. // ui32Config |= _VAL2FLD(MSPI_CFG_ASIZE, pConfig->eAddrCfg); // // Set the instruction configuration. // ui32Config |= _VAL2FLD(MSPI_CFG_ISIZE, pConfig->eInstrCfg); // // Set the configuration in the MSPI peripheral. // MSPIn(ui32Module)->CFG = ui32Config; // // Set the clock divisor to get the desired MSPI clock frequency. // MSPIn(ui32Module)->MSPICFG_b.CLKDIV = pConfig->eClockFreq; // // Adjust the clock edge configuration depending upon the clock frequency. // if ( pConfig->eClockFreq == AM_HAL_MSPI_CLK_48MHZ ) { MSPIn(ui32Module)->MSPICFG_b.TXNEG = 1; MSPIn(ui32Module)->MSPICFG_b.RXNEG = 0; MSPIn(ui32Module)->MSPICFG_b.RXCAP = 1; } else { MSPIn(ui32Module)->MSPICFG_b.TXNEG = 0; MSPIn(ui32Module)->MSPICFG_b.RXNEG = 0; MSPIn(ui32Module)->MSPICFG_b.RXCAP = 1; } // // Set the APBCLK for continuous operation. // MSPIn(ui32Module)->MSPICFG_b.APBCLK = 1; // // Reset the register storage for next write. // ui32Config = 0; // // Set whether to send an instruction. // if ( pConfig->bSendInstr ) { ui32Config |= _VAL2FLD(MSPI_FLASH_XIPSENDI, 1); } // // Set whether to send an address. // if ( pConfig->bSendAddr ) { ui32Config |= _VAL2FLD(MSPI_FLASH_XIPSENDA, 1); } // // Set whether to enable the TX to RX turnaround. // if ( pConfig->bTurnaround ) { ui32Config |= _VAL2FLD(MSPI_FLASH_XIPENTURN, 1); } // // Set to Little Endian mode by default. // ui32Config |= _VAL2FLD(MSPI_FLASH_XIPBIGENDIAN, pMSPIState->bBigEndian); // // Set the XIP ACK value to default to 1's during latency period. // ui32Config |= _VAL2FLD(MSPI_FLASH_XIPACK, MSPI_FLASH_XIPACK_TERMINATE); // // Set the read instruction. // ui32Config |= _VAL2FLD(MSPI_FLASH_READINSTR, pConfig->ui8ReadInstr); // // Set the write instruction. // ui32Config |= _VAL2FLD(MSPI_FLASH_WRITEINSTR, pConfig->ui8WriteInstr); // // Set the configuration in the MSPI peripheral. // MSPIn(ui32Module)->FLASH = ui32Config; g_MSPIState[ui32Module].pTCB = pConfig->pTCB; g_MSPIState[ui32Module].ui32TCBSize = pConfig->ui32TCBSize; if (pConfig->pTCB) { // set the DMABCOUNT MSPIn(ui32Module)->DMABCOUNT = AM_HAL_MSPI_DEFAULT_BURST_COUNT; // set the DMATHRESH MSPIn(ui32Module)->DMATHRESH = AM_HAL_MSPI_DEFAULT_BURST_COUNT >> 2; // Worst case minimum CQ entries that can be accomodated in provided buffer // Need to account for the wrap g_MSPIState[ui32Module].ui32MaxPending = ((pConfig->ui32TCBSize - 8) * 4 / AM_HAL_MSPI_CQ_ENTRY_SIZE); if (g_MSPIState[ui32Module].ui32MaxPending > AM_HAL_MSPI_MAX_CQ_ENTRIES) { g_MSPIState[ui32Module].ui32MaxPending = AM_HAL_MSPI_MAX_CQ_ENTRIES; } } // // Reset the register storage for next write. // ui32Config = 0; // // Set the scrambling start and end addresses aligned to 64K region. // MSPIn(ui32Module)->SCRAMBLING = _VAL2FLD(MSPI_SCRAMBLING_SCRSTART, pConfig->scramblingStartAddr >> 16) | _VAL2FLD(MSPI_SCRAMBLING_SCREND, pConfig->scramblingEndAddr >> 16); // // Set the selected IOM to disable. // MSPIn(ui32Module)->MSPICFG_b.IOMSEL = 7; { mspi_device_info_t MSPIDeviceInfo; uint32_t ui32DeviceConfig; uint32_t ui32Status; // // Determine the virtual device configuration. // MSPIDeviceInfo.eDeviceConfig = pConfig->eDeviceConfig; MSPIDeviceInfo.eXipMixedMode = pConfig->eXipMixedMode; MSPIDeviceInfo.bSeparateIO = pConfig->bSeparateIO; ui32Status = mspi_virtual_device(&MSPIDeviceInfo, &ui32DeviceConfig); if (AM_HAL_STATUS_SUCCESS != ui32Status) { return ui32Status; } // // Configure the MSPI for a specific device configuration. // This function sets the following registers/fields: // CFG.DEVCFG // CFG.SEPIO // FLASH.XIPMIXED // PADCFG // PADOUTEN // mspi_device_configure(pHandle, ui32DeviceConfig); } // // Set the default endianess for the FIFO. // pMSPIState->bBigEndian = false; // // Store the clock frequency for later SW workarounds. // pMSPIState->eClockFreq = pConfig->eClockFreq; // // Set the default maximum delay timeout value. // pMSPIState->waitTimeout = 10000; // // Return the status. // return AM_HAL_STATUS_SUCCESS; } // // MSPI device configuration function // uint32_t am_hal_mspi_enable(void *pHandle) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; #ifndef AM_HAL_DISABLE_API_VALIDATION // // Check the handle. // if (!AM_HAL_MSPI_CHK_HANDLE(pHandle)) { return AM_HAL_STATUS_INVALID_HANDLE; } #endif // AM_HAL_DISABLE_API_VALIDATION if (pMSPIState->pTCB) { pMSPIState->ui32LastIdxProcessed = 0; pMSPIState->ui32NumCQEntries = 0; #if MSPI_USE_CQ // // Initialize the Command Queue service with memory supplied by the application. // mspi_cq_init(pMSPIState->ui32Module, pMSPIState->ui32TCBSize, pMSPIState->pTCB); // Initialize Flags used to force CQ Pause MSPIn(pMSPIState->ui32Module)->CQSETCLEAR = AM_HAL_MSPI_SC_UNPAUSE_CQ | AM_HAL_MSPI_SC_PAUSE_SEQLOOP; pMSPIState->pHPTransactions = NULL; pMSPIState->bHP = false; pMSPIState->ui32NumHPPendingEntries = 0; pMSPIState->block = 0; pMSPIState->ui32NumHPEntries = 0; pMSPIState->eSeq = AM_HAL_MSPI_SEQ_NONE; pMSPIState->ui32NumTransactions = 0; pMSPIState->bAutonomous = true; pMSPIState->ui32NumUnSolicited = 0; #else // Use the buffer for software queuing for DMA // Determine the maximum number of transactions based on the memory provided pMSPIState->ui32MaxTransactions = pMSPIState->ui32TCBSize * 4 / sizeof(am_hal_mspi_cq_dma_entry_t); if (pMSPIState->ui32MaxTransactions > 0) { if (pMSPIState->ui32MaxTransactions > AM_HAL_MSPI_MAX_CQ_ENTRIES) { pMSPIState->ui32MaxTransactions = AM_HAL_MSPI_MAX_CQ_ENTRIES; } pMSPIState->ui32NextIdx = pMSPIState->ui32LastIdxProcessed + 1; pMSPIState->pTransactions = (am_hal_mspi_cq_dma_entry_t *)pMSPIState->pTCB; } #endif // MSPI_USE_CQ } pMSPIState->prefix.s.bEnable = true; // // Return the status. // return AM_HAL_STATUS_SUCCESS; } // // MSPI device specific control function. // uint32_t am_hal_mspi_control(void *pHandle, am_hal_mspi_request_e eRequest, void *pConfig) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; uint32_t ui32Module; uint32_t ui32Status = AM_HAL_STATUS_SUCCESS; #ifndef AM_HAL_DISABLE_API_VALIDATION // // Check the handle. // if ( !AM_HAL_MSPI_CHK_HANDLE(pHandle) ) { return AM_HAL_STATUS_INVALID_HANDLE; } // // Validate the parameters // if (eRequest > AM_HAL_MSPI_REQ_MAX) { return AM_HAL_STATUS_INVALID_ARG; } #endif // AM_HAL_DISABLE_API_VALIDATION ui32Module = pMSPIState->ui32Module; switch(eRequest) { case AM_HAL_MSPI_REQ_APBCLK: #ifndef AM_HAL_DISABLE_API_VALIDATION if (!pConfig) { return AM_HAL_STATUS_INVALID_ARG; } #endif // AM_HAL_DISABLE_API_VALIDATION // // Enable/Disable APBCLK. // MSPIn(ui32Module)->MSPICFG_b.APBCLK = *((uint32_t *)pConfig); break; case AM_HAL_MSPI_REQ_FLAG_SETCLR: #ifndef AM_HAL_DISABLE_API_VALIDATION if (!pConfig) { return AM_HAL_STATUS_INVALID_ARG; } if (*((uint32_t *)pConfig) & AM_HAL_MSPI_SC_RESV_MASK) { return AM_HAL_STATUS_INVALID_ARG; } #endif // AM_HAL_DISABLE_API_VALIDATION MSPIn(ui32Module)->CQSETCLEAR = *((uint32_t *)pConfig); break; case AM_HAL_MSPI_REQ_LINK_IOM: #ifndef AM_HAL_DISABLE_API_VALIDATION if (!pConfig) { return AM_HAL_STATUS_INVALID_ARG; } if (( *((uint32_t *)pConfig) >= AM_REG_IOM_NUM_MODULES ) && ( *((uint32_t *)pConfig) != AM_HAL_MSPI_LINK_IOM_NONE )) { return AM_HAL_STATUS_INVALID_ARG; } #endif // AM_HAL_DISABLE_API_VALIDATION // // Set the Linked IOM // MSPIn(ui32Module)->MSPICFG_b.IOMSEL = *((uint32_t *)pConfig); break; case AM_HAL_MSPI_REQ_SCRAMB_DIS: // // Disable scrambling. // MSPIn(ui32Module)->SCRAMBLING_b.SCRENABLE = 0; break; case AM_HAL_MSPI_REQ_SCRAMB_EN: // // Enable scrambling. // MSPIn(ui32Module)->SCRAMBLING_b.SCRENABLE = 1; break; case AM_HAL_MSPI_REQ_XIPACK: #ifndef AM_HAL_DISABLE_API_VALIDATION if (!pConfig) { return AM_HAL_STATUS_INVALID_ARG; } #endif // AM_HAL_DISABLE_API_VALIDATION // // Enable/Disable XIPACK. // MSPIn(ui32Module)->FLASH_b.XIPACK = *((uint32_t *)pConfig); break; case AM_HAL_MSPI_REQ_XIP_DIS: // // Disable XIP. // MSPIn(ui32Module)->FLASH_b.XIPEN = 0; break; case AM_HAL_MSPI_REQ_XIP_EN: // // Enable XIP. // MSPIn(ui32Module)->FLASH_b.XIPEN = 1; break; case AM_HAL_MSPI_REQ_DEVICE_CONFIG: #ifndef AM_HAL_DISABLE_API_VALIDATION if (!pConfig) { return AM_HAL_STATUS_INVALID_ARG; } if (pMSPIState->prefix.s.bEnable) { return AM_HAL_STATUS_IN_USE; } #endif // AM_HAL_DISABLE_API_VALIDATION { uint32_t ui32DeviceConfig; uint32_t ui32Status; // // Determine the virtual device configuration. // ui32Status = mspi_virtual_device((mspi_device_info_t *)pConfig, &ui32DeviceConfig); if (AM_HAL_STATUS_SUCCESS != ui32Status) { return ui32Status; } // // Configure the MSPI for a specific device configuration. // This function sets the following registers/fields: // CFG.DEVCFG // CFG.SEPIO // FLASH.XIPMIXED // PADCFG // PADOUTEN // ui32Status = mspi_device_configure(pHandle, ui32DeviceConfig); if (AM_HAL_STATUS_SUCCESS != ui32Status) { return ui32Status; } } break; case AM_HAL_MSPI_REQ_PAUSE: ui32Status = mspi_cq_pause(pMSPIState); break; case AM_HAL_MSPI_REQ_UNPAUSE: // Resume the CQ MSPIn(ui32Module)->CQSETCLEAR = AM_HAL_MSPI_SC_UNPAUSE_CQ; break; case AM_HAL_MSPI_REQ_SET_SEQMODE: { am_hal_mspi_seq_e eSeq; #ifndef AM_HAL_DISABLE_API_VALIDATION if (!pConfig) { return AM_HAL_STATUS_INVALID_ARG; } if (!pMSPIState->pTCB) { // No space for CMDQ return AM_HAL_STATUS_INVALID_OPERATION; } #endif // AM_HAL_DISABLE_API_VALIDATION eSeq = *((bool *)pConfig) ? AM_HAL_MSPI_SEQ_UNDER_CONSTRUCTION: AM_HAL_MSPI_SEQ_NONE; if (eSeq == pMSPIState->eSeq) { // Nothing to do return AM_HAL_STATUS_SUCCESS; } #if 0 // We should be able to operate on sequence even if there are HP transactions in progress // Make sure there is no high priority transaction in progress if (pMSPIState->ui32NumHPEntries) { return AM_HAL_STATUS_INVALID_OPERATION; } #endif switch (pMSPIState->eSeq) { case AM_HAL_MSPI_SEQ_RUNNING: { ui32Status = mspi_cq_pause(pMSPIState); break; } case AM_HAL_MSPI_SEQ_NONE: { // Make sure there is no non-blocking transaction in progress if (pMSPIState->ui32NumCQEntries) { return AM_HAL_STATUS_INVALID_OPERATION; } break; } default: ; } if (ui32Status == AM_HAL_STATUS_SUCCESS) { // Reset the cmdq am_hal_cmdq_reset(pMSPIState->CQ.pCmdQHdl); pMSPIState->ui32LastIdxProcessed = 0; pMSPIState->ui32NumTransactions = 0; pMSPIState->ui32NumCQEntries = 0; pMSPIState->eSeq = eSeq; pMSPIState->bAutonomous = true; pMSPIState->ui32NumUnSolicited = 0; } break; } case AM_HAL_MSPI_REQ_SEQ_END: { uint32_t ui32Status = AM_HAL_STATUS_SUCCESS; am_hal_cmdq_entry_t *pCQBlock; uint32_t index; am_hal_mspi_seq_end_t *pLoop = (am_hal_mspi_seq_end_t *)pConfig; uint32_t pause = 0; uint32_t scUnpause = 0; uint32_t ui32Critical = 0; #ifndef AM_HAL_DISABLE_API_VALIDATION if (!pConfig) { return AM_HAL_STATUS_INVALID_ARG; } if (pLoop->ui32PauseCondition & AM_HAL_MSPI_PAUSE_FLAG_RESV) { return AM_HAL_STATUS_INVALID_ARG; } if (pLoop->ui32StatusSetClr & AM_HAL_MSPI_SC_RESV_MASK) { return AM_HAL_STATUS_INVALID_ARG; } if (pMSPIState->eSeq != AM_HAL_MSPI_SEQ_UNDER_CONSTRUCTION) { return AM_HAL_STATUS_INVALID_OPERATION; } #endif // AM_HAL_DISABLE_API_VALIDATION if (pMSPIState->block) { // End the block if the sequence is ending pMSPIState->block = 0; // Unblock the whole batch of commands in this block MSPIn(ui32Module)->CQSETCLEAR = AM_HAL_MSPI_SC_UNPAUSE_BLOCK; } if ((pLoop->bLoop) && (!pMSPIState->bAutonomous)) { // Need to insert special element in CQ to cause a callback // This is to reset internal state ui32Status = am_hal_cmdq_alloc_block(pMSPIState->CQ.pCmdQHdl, 1, &pCQBlock, &index); if (ui32Status != AM_HAL_STATUS_SUCCESS) { return ui32Status; } else { // // Store the callback function pointer. // pMSPIState->pfnCallback[index & (AM_HAL_MSPI_MAX_CQ_ENTRIES - 1)] = mspi_seq_loopback; pMSPIState->pCallbackCtxt[index & (AM_HAL_MSPI_MAX_CQ_ENTRIES - 1)] = (void *)pMSPIState; // Dummy Entry pCQBlock->address = (uint32_t)&MSPIn(ui32Module)->CQSETCLEAR; pCQBlock->value = 0; // // Need to protect access of ui32NumPendTransactions as it is accessed // from ISR as well // // Start a critical section. // ui32Critical = am_hal_interrupt_master_disable(); // // Post to the CQ. // ui32Status = am_hal_cmdq_post_block(pMSPIState->CQ.pCmdQHdl, true); if (AM_HAL_STATUS_SUCCESS != ui32Status) { // // End the critical section. // am_hal_interrupt_master_set(ui32Critical); am_hal_cmdq_release_block(pMSPIState->CQ.pCmdQHdl); return ui32Status; } else { uint32_t ui32NumPend = pMSPIState->ui32NumCQEntries++; // // End the critical section. // am_hal_interrupt_master_set(ui32Critical); if (ui32NumPend == 0) { // // Enable the Command Queue // ui32Status = mspi_cq_enable(pHandle); if (AM_HAL_STATUS_SUCCESS != ui32Status) { return ui32Status; } } } // Use SWFLAG6 to cause a pause pause = AM_HAL_MSPI_PAUSE_FLAG_SEQLOOP; // Revert back the flag after SW callback unpauses it scUnpause = AM_HAL_MSPI_SC_PAUSE_SEQLOOP; } } // Insert the loopback ui32Status = am_hal_cmdq_alloc_block(pMSPIState->CQ.pCmdQHdl, sizeof(am_hal_mspi_cq_loop_entry_t) / 8, &pCQBlock, &index); if (ui32Status != AM_HAL_STATUS_SUCCESS) { return ui32Status; } else { am_hal_mspi_cq_loop_entry_t *pLoopEntry = (am_hal_mspi_cq_loop_entry_t *)pCQBlock; pLoopEntry->ui32PAUSENAddr = pLoopEntry->ui32PAUSEN2Addr = (uint32_t)&MSPIn(ui32Module)->CQPAUSE; pLoopEntry->ui32SETCLRAddr = (uint32_t)&MSPIn(ui32Module)->CQSETCLEAR; pLoopEntry->ui32PAUSEENVal = get_pause_val(pMSPIState, pLoop->ui32PauseCondition | pause); pLoopEntry->ui32PAUSEEN2Val = AM_HAL_MSPI_PAUSE_DEFAULT; pLoopEntry->ui32SETCLRVal = pLoop->ui32StatusSetClr | scUnpause; // // Need to protect access of ui32NumPendTransactions as it is accessed // from ISR as well // // Start a critical section. // ui32Critical = am_hal_interrupt_master_disable(); // // Post to the CQ. // if (pLoop->bLoop) { ui32Status = am_hal_cmdq_post_loop_block(pMSPIState->CQ.pCmdQHdl, false); } else { ui32Status = am_hal_cmdq_post_block(pMSPIState->CQ.pCmdQHdl, false); } if (AM_HAL_STATUS_SUCCESS != ui32Status) { // // End the critical section. // am_hal_interrupt_master_set(ui32Critical); am_hal_cmdq_release_block(pMSPIState->CQ.pCmdQHdl); } else { uint32_t ui32NumPend = pMSPIState->ui32NumCQEntries++; pMSPIState->eSeq = (pLoop->bLoop) ? AM_HAL_MSPI_SEQ_RUNNING : AM_HAL_MSPI_SEQ_NONE; // // End the critical section. // am_hal_interrupt_master_set(ui32Critical); if (ui32NumPend == 0) { // // Enable the Command Queue // ui32Status = mspi_cq_enable(pHandle); if (AM_HAL_STATUS_SUCCESS != ui32Status) { return ui32Status; } } } } return ui32Status; //break; } case AM_HAL_MSPI_REQ_INIT_HIPRIO: { am_hal_mspi_hiprio_cfg_t *pHPCfg = (am_hal_mspi_hiprio_cfg_t *)pConfig; #ifndef AM_HAL_DISABLE_API_VALIDATION if (!pConfig) { return AM_HAL_STATUS_INVALID_ARG; } if (pMSPIState->pHPTransactions) { return AM_HAL_STATUS_INVALID_OPERATION; } #endif // AM_HAL_DISABLE_API_VALIDATION pMSPIState->ui32NumHPEntries = pMSPIState->ui32LastHPIdxProcessed = 0; pMSPIState->ui32NextHPIdx = pMSPIState->ui32LastHPIdxProcessed + 1; pMSPIState->pHPTransactions = (am_hal_mspi_dma_entry_t *)pHPCfg->pBuf; pMSPIState->ui32MaxHPTransactions = pHPCfg->size / sizeof(am_hal_mspi_dma_entry_t); break; } case AM_HAL_MSPI_REQ_START_BLOCK: // Pause the next block from proceeding till whole block is finished MSPIn(ui32Module)->CQSETCLEAR = AM_HAL_MSPI_SC_PAUSE_BLOCK; pMSPIState->block = 1; pMSPIState->ui32NumHPPendingEntries = 0; break; case AM_HAL_MSPI_REQ_END_BLOCK: // Unblock the whole batch of commands in this block MSPIn(ui32Module)->CQSETCLEAR = AM_HAL_MSPI_SC_UNPAUSE_BLOCK; pMSPIState->block = 0; if (pMSPIState->ui32NumHPPendingEntries) { // Now it is okay to let go of the block of HiPrio transactions ui32Status = sched_hiprio(pMSPIState, pMSPIState->ui32NumHPPendingEntries); if (ui32Status == AM_HAL_STATUS_SUCCESS) { pMSPIState->ui32NumHPPendingEntries = 0; } } break; case AM_HAL_MSPI_REQ_CQ_RAW: { #if MSPI_USE_CQ am_hal_mspi_cq_raw_t *pCqRaw = (am_hal_mspi_cq_raw_t *)pConfig; am_hal_cmdq_entry_t *pCQBlock; uint32_t ui32Critical = 0; uint32_t ui32NumPend; uint32_t index; am_hal_mspi_callback_t pfnCallback1; #ifndef AM_HAL_DISABLE_API_VALIDATION if (!pCqRaw) { return AM_HAL_STATUS_INVALID_ARG; } if (!pMSPIState->CQ.pCmdQHdl) { return AM_HAL_STATUS_INVALID_OPERATION; } #endif // AM_HAL_DISABLE_API_VALIDATION // // Check to see if there is enough room in the CQ // if ((pMSPIState->ui32NumCQEntries == AM_HAL_MSPI_MAX_CQ_ENTRIES) || (am_hal_cmdq_alloc_block(pMSPIState->CQ.pCmdQHdl, pCqRaw->numEntries + 3, &pCQBlock, &index))) { return AM_HAL_STATUS_OUT_OF_RANGE; } pCQBlock->address = (uint32_t)&MSPIn(ui32Module)->CQPAUSE; pCQBlock->value = get_pause_val(pMSPIState, pCqRaw->ui32PauseCondition); pCQBlock++; // Copy the CQ Entry contents for (uint32_t i = 0; i < pCqRaw->numEntries; i++, pCQBlock++) { pCQBlock->address = pCqRaw->pCQEntry[i].address; pCQBlock->value = pCqRaw->pCQEntry[i].value; } // If there is a need - populate the jump back address if (pCqRaw->pJmpAddr) { *(pCqRaw->pJmpAddr) = (uint32_t)pCQBlock; } pCQBlock->address = (uint32_t)&MSPIn(ui32Module)->CQPAUSE; pCQBlock->value = AM_HAL_MSPI_PAUSE_DEFAULT; pCQBlock++; pCQBlock->address = (uint32_t)&MSPIn(ui32Module)->CQSETCLEAR; pCQBlock->value = pCqRaw->ui32StatusSetClr; pfnCallback1 = pCqRaw->pfnCallback; if ( !pfnCallback1 && !pMSPIState->block && (pMSPIState->eSeq == AM_HAL_MSPI_SEQ_NONE) && (pMSPIState->ui32NumUnSolicited >= (pMSPIState->ui32MaxPending / 2)) ) { // Need to schedule a dummy callback, to ensure ui32NumCQEntries get updated in ISR pfnCallback1 = mspi_dummy_callback; } // // Store the callback function pointer. // pMSPIState->pfnCallback[index & (AM_HAL_MSPI_MAX_CQ_ENTRIES - 1)] = pfnCallback1; pMSPIState->pCallbackCtxt[index & (AM_HAL_MSPI_MAX_CQ_ENTRIES - 1)] = pCqRaw->pCallbackCtxt; // // Need to protect access of ui32NumPendTransactions as it is accessed // from ISR as well // // Start a critical section. // ui32Critical = am_hal_interrupt_master_disable(); // // Post the transaction to the CQ. // Register for interrupt only if there is a callback // ui32Status = am_hal_cmdq_post_block(pMSPIState->CQ.pCmdQHdl, pfnCallback1); if (AM_HAL_STATUS_SUCCESS != ui32Status) { // // End the critical section. // am_hal_interrupt_master_set(ui32Critical); am_hal_cmdq_release_block(pMSPIState->CQ.pCmdQHdl); } else { ui32NumPend = pMSPIState->ui32NumCQEntries++; pMSPIState->ui32NumTransactions++; if (pCqRaw->pfnCallback) { pMSPIState->bAutonomous = false; pMSPIState->ui32NumUnSolicited = 0; } else { if (pfnCallback1) { // This implies we have already scheduled a dummy callback pMSPIState->ui32NumUnSolicited = 0; } else { pMSPIState->ui32NumUnSolicited++; } } // // End the critical section. // am_hal_interrupt_master_set(ui32Critical); if (ui32NumPend == 0) { // // Enable the Command Queue // ui32Status = mspi_cq_enable(pHandle); if (AM_HAL_STATUS_SUCCESS != ui32Status) { return ui32Status; } } } #else // !AM_HAL_MSPI_CQ ui32Status = AM_HAL_STATUS_INVALID_ARG; #endif break; } default: return AM_HAL_STATUS_INVALID_ARG; } // // Return the status. // return ui32Status; } // // MSPI get capabilities // uint32_t am_hal_mspi_capabilities_get(void *pHandle, am_hal_mspi_capabilities_t **pCapabilities) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; uint32_t ui32Module; #ifndef AM_HAL_DISABLE_API_VALIDATION // // Check the handle. // if (!AM_HAL_MSPI_CHK_HANDLE(pHandle)) { return AM_HAL_STATUS_INVALID_HANDLE; } #endif // AM_HAL_DISABLE_API_VALIDATION ui32Module = pMSPIState->ui32Module; // // copy the pointer the MSPI instance capabilities into the passed pointer // *pCapabilities = &g_MSPIState[ui32Module].capabilities; // // Return the status. // return AM_HAL_STATUS_SUCCESS; } // // MSPI blocking transfer function // uint32_t am_hal_mspi_blocking_transfer(void *pHandle, am_hal_mspi_pio_transfer_t *pTransaction, uint32_t ui32Timeout) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; uint32_t ui32Module; uint32_t ui32Control = 0; uint32_t ui32Status = AM_HAL_STATUS_SUCCESS; uint32_t intMask; #ifndef AM_HAL_DISABLE_API_VALIDATION // // Check the handle. // if (!AM_HAL_MSPI_CHK_HANDLE(pHandle)) { return AM_HAL_STATUS_INVALID_HANDLE; } // // Check that the interface is enabled. // if (!pMSPIState->prefix.s.bEnable) { return AM_HAL_STATUS_INVALID_OPERATION; } #endif // AM_HAL_DISABLE_API_VALIDATION ui32Module = pMSPIState->ui32Module; // Make sure there is no non-blocking transaction in progress if (pMSPIState->ui32NumCQEntries || pMSPIState->ui32NumHPEntries) { return AM_HAL_STATUS_INVALID_OPERATION; } #if MSPI_USE_CQ if (pMSPIState->eSeq == AM_HAL_MSPI_SEQ_RUNNING) { // Dynamic additions to sequence not allowed return AM_HAL_STATUS_INVALID_OPERATION; } #endif // // Set the number of bytes to transfer. // ui32Control |= _VAL2FLD(MSPI_CTRL_XFERBYTES, pTransaction->ui32NumBytes); // // Set the PIO default to scrambling disabled. // ui32Control |= _VAL2FLD(MSPI_CTRL_PIOSCRAMBLE, pTransaction->bScrambling); // // Set transmit or receive operation. // ui32Control |= _VAL2FLD(MSPI_CTRL_TXRX, pTransaction->eDirection); // // Set the indication to send an instruction and set the instruction value if // we have a valid instruction. // if ( pTransaction->bSendInstr ) { ui32Control |= _VAL2FLD(MSPI_CTRL_SENDI, 1); MSPIn(ui32Module)->INSTR = _VAL2FLD(MSPI_INSTR_INSTR, pTransaction->ui16DeviceInstr); } // // Set the inidication to send an address and set the address value if we have // a valid address. // if ( pTransaction->bSendAddr ) { ui32Control |= _VAL2FLD(MSPI_CTRL_SENDA, 1); MSPIn(ui32Module)->ADDR = _VAL2FLD(MSPI_ADDR_ADDR, pTransaction->ui32DeviceAddr); } // // Set the turn-around if needed. // if ( pTransaction->bTurnaround ) { ui32Control |= _VAL2FLD(MSPI_CTRL_ENTURN, 1); } // // Set the default FIFO Little Endian format. // ui32Control |= _VAL2FLD(MSPI_CTRL_BIGENDIAN, pMSPIState->bBigEndian); // // Set the Quad Command if this is transmit and the device is configured // for Dual Quad mode. // if ( pTransaction->bQuadCmd ) { ui32Control |= _VAL2FLD(MSPI_CTRL_QUADCMD, 1); } // // Start the Transfer. // ui32Control |= _VAL2FLD(MSPI_CTRL_START, 1); // Disable all interrupts intMask = MSPIn(ui32Module)->INTEN; MSPIn(ui32Module)->INTEN = 0; MSPIn(ui32Module)->INTCLR = AM_HAL_MSPI_INT_ALL; // // Initiate the Transfer. // MSPIn(ui32Module)->CTRL = ui32Control; // // Read or Feed the FIFOs. // if ( AM_HAL_MSPI_RX == pTransaction->eDirection ) { ui32Status = mspi_fifo_read(ui32Module, pTransaction->pui32Buffer, pTransaction->ui32NumBytes, pMSPIState->waitTimeout); } else if ( AM_HAL_MSPI_TX == pTransaction->eDirection ) { ui32Status = mspi_fifo_write(ui32Module, pTransaction->pui32Buffer, pTransaction->ui32NumBytes, pMSPIState->waitTimeout ); } // // Check status. // if (AM_HAL_STATUS_SUCCESS != ui32Status) { // // Restore interrupts // MSPIn(ui32Module)->INTCLR = AM_HAL_MSPI_INT_ALL; MSPIn(ui32Module)->INTEN = intMask; return ui32Status; } // // Wait for the command to complete. // ui32Status = am_hal_flash_delay_status_check(ui32Timeout, (uint32_t)&MSPIn(ui32Module)->CTRL, MSPI_CTRL_STATUS_Msk, _VAL2FLD(MSPI_CTRL_STATUS, 1), true); // // Restore interrupts // MSPIn(ui32Module)->INTCLR = AM_HAL_MSPI_INT_ALL; MSPIn(ui32Module)->INTEN = intMask; // // Return the status. // return ui32Status; } // // MSPI Non-Blocking transfer function // uint32_t am_hal_mspi_nonblocking_transfer(void *pHandle, void *pTransfer, am_hal_mspi_trans_e eMode, am_hal_mspi_callback_t pfnCallback, void *pCallbackCtxt) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; uint32_t ui32Status = AM_HAL_STATUS_SUCCESS; uint32_t ui32NumPend; #ifndef AM_HAL_DISABLE_API_VALIDATION // // Check the handle. // if (!AM_HAL_MSPI_CHK_HANDLE(pHandle)) { return AM_HAL_STATUS_INVALID_HANDLE; } if (!pMSPIState->pTCB) { return AM_HAL_STATUS_INVALID_OPERATION; } // // Check that the interface is enabled. // if (!pMSPIState->prefix.s.bEnable) { return AM_HAL_STATUS_INVALID_OPERATION; } #if MSPI_USE_CQ #if 0 // We should be able to queue up the CQ even if high priority transaction is in progress if (pMSPIState->ui32NumHPEntries) { return AM_HAL_STATUS_INVALID_OPERATION; } #endif if (pMSPIState->eSeq == AM_HAL_MSPI_SEQ_RUNNING) { // Dynamic additions to sequence not allowed return AM_HAL_STATUS_INVALID_OPERATION; } #endif #endif // AM_HAL_DISABLE_API_VALIDATION #if MSPI_USE_CQ am_hal_mspi_callback_t pfnCallback1 = pfnCallback; if ( !pfnCallback1 && !pMSPIState->block && (pMSPIState->eSeq == AM_HAL_MSPI_SEQ_NONE) && (pMSPIState->ui32NumUnSolicited >= (pMSPIState->ui32MaxPending / 2)) ) { // Need to schedule a dummy callback, to ensure ui32NumCQEntries get updated in ISR pfnCallback1 = mspi_dummy_callback; } // // DMA defaults to using the Command Queue // ui32Status = mspi_cq_add_transaction(pHandle, pTransfer, eMode, pfnCallback1, pCallbackCtxt); if (AM_HAL_STATUS_SUCCESS != ui32Status) { return ui32Status; } else { uint32_t ui32Critical = 0; // // Start a critical section. // ui32Critical = am_hal_interrupt_master_disable(); // // Post the transaction to the CQ. // ui32Status = am_hal_cmdq_post_block(pMSPIState->CQ.pCmdQHdl, pfnCallback1); if (AM_HAL_STATUS_SUCCESS != ui32Status) { // // End the critical section. // am_hal_interrupt_master_set(ui32Critical); am_hal_cmdq_release_block(pMSPIState->CQ.pCmdQHdl); } else { ui32NumPend = pMSPIState->ui32NumCQEntries++; pMSPIState->ui32NumTransactions++; if (pfnCallback) { pMSPIState->bAutonomous = false; pMSPIState->ui32NumUnSolicited = 0; } else { if (pfnCallback1) { // This implies we have already scheduled a dummy callback pMSPIState->ui32NumUnSolicited = 0; } else { pMSPIState->ui32NumUnSolicited++; } } // // End the critical section. // am_hal_interrupt_master_set(ui32Critical); if (ui32NumPend == 0) { // // Enable the Command Queue // ui32Status = mspi_cq_enable(pHandle); if (AM_HAL_STATUS_SUCCESS != ui32Status) { return ui32Status; } } } } #else if (pMSPIState->ui32MaxTransactions == 0) { return AM_HAL_STATUS_INVALID_OPERATION; } if (AM_HAL_MSPI_TRANS_DMA != eMode) { return AM_HAL_STATUS_INVALID_ARG; } ui32Status = mspi_dma_add_transaction(pHandle, pTransfer, pfnCallback, pCallbackCtxt); if (ui32Status == AM_HAL_STATUS_SUCCESS) { // // Start a critical section. // AM_CRITICAL_BEGIN ui32NumPend = pMSPIState->ui32NumCQEntries++; // // End the critical section. // AM_CRITICAL_END if (0 == ui32NumPend) { uint32_t index = (pMSPIState->ui32LastIdxProcessed + 1) % pMSPIState->ui32MaxTransactions; pMSPIState->ui32TxnInt = 0; // // Run the command list // run_txn_cmdlist(&pMSPIState->pTransactions[index], sizeof(am_hal_mspi_cq_dma_entry_t) / sizeof(am_hal_cmdq_entry_t)); } } #endif // !MSPI_USE_CQ // // Return the status. // return ui32Status; } // // MSPI status function // uint32_t am_hal_mspi_status_get(void *pHandle, am_hal_mspi_status_t *pStatus ) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; uint32_t ui32Module; #ifndef AM_HAL_DISABLE_API_VALIDATION // // Check the handle. // if (!AM_HAL_MSPI_CHK_HANDLE(pHandle)) { return AM_HAL_STATUS_INVALID_HANDLE; } #endif // AM_HAL_DISABLE_API_VALIDATION ui32Module = pMSPIState->ui32Module; // // Get the Command Complete status. // // TODO: Need to implement. // // Get the FIFO status. // // TODO: Need to implement. // // Get the DMA status. // pStatus->bErr = ((MSPIn(ui32Module)->DMASTAT & MSPI_DMASTAT_DMAERR_Msk) > 0); pStatus->bCmp = ((MSPIn(ui32Module)->DMASTAT & MSPI_DMASTAT_DMACPL_Msk) > 0); pStatus->bTIP = ((MSPIn(ui32Module)->DMASTAT & MSPI_DMASTAT_DMATIP_Msk) > 0); // // Get the CQ status. // // TODO: Need to implement. pStatus->ui32NumCQEntries = pMSPIState->ui32NumCQEntries; // // Get the scrambling status. // // TODO: Need to implement. // // Return the status. // return AM_HAL_STATUS_SUCCESS; } // // MSPI enable interrupts function // uint32_t am_hal_mspi_interrupt_enable(void *pHandle, uint32_t ui32IntMask) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; uint32_t ui32Module; #ifndef AM_HAL_DISABLE_API_VALIDATION // // Check the handle. // if (!AM_HAL_MSPI_CHK_HANDLE(pHandle)) { return AM_HAL_STATUS_INVALID_HANDLE; } #endif // AM_HAL_DISABLE_API_VALIDATION ui32Module = pMSPIState->ui32Module; // // Set the interrupt enables according to the mask. // MSPIn(ui32Module)->INTEN |= ui32IntMask; // // Return the status. // return AM_HAL_STATUS_SUCCESS; } // // MSPI disable interrupts function // uint32_t am_hal_mspi_interrupt_disable(void *pHandle, uint32_t ui32IntMask) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; uint32_t ui32Module; #ifndef AM_HAL_DISABLE_API_VALIDATION // // Check the handle. // if (!AM_HAL_MSPI_CHK_HANDLE(pHandle)) { return AM_HAL_STATUS_INVALID_HANDLE; } #endif // AM_HAL_DISABLE_API_VALIDATION ui32Module = pMSPIState->ui32Module; // // Clear the interrupt enables according to the mask. // MSPIn(ui32Module)->INTEN &= ~ui32IntMask; // // Return the status. // return AM_HAL_STATUS_SUCCESS; } // // MSPI interrupt status function // uint32_t am_hal_mspi_interrupt_status_get(void *pHandle, uint32_t *pui32Status, bool bEnabledOnly) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; uint32_t ui32Module; #ifndef AM_HAL_DISABLE_API_VALIDATION // // Check the handle. // if (!AM_HAL_MSPI_CHK_HANDLE(pHandle)) { return AM_HAL_STATUS_INVALID_HANDLE; } #endif // AM_HAL_DISABLE_API_VALIDATION ui32Module = pMSPIState->ui32Module; // // if requested, only return the interrupts that are enabled. // if ( bEnabledOnly ) { uint32_t ui32RetVal = MSPIn(ui32Module)->INTSTAT; *pui32Status = ui32RetVal & MSPIn(ui32Module)->INTEN; } else { *pui32Status = MSPIn(ui32Module)->INTSTAT; } return AM_HAL_STATUS_SUCCESS; } // // MSPI interrupt clear // uint32_t am_hal_mspi_interrupt_clear(void *pHandle, uint32_t ui32IntMask) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; uint32_t ui32Module; #ifndef AM_HAL_DISABLE_API_VALIDATION // // Check the handle. // if ( !AM_HAL_MSPI_CHK_HANDLE(pHandle) ) { return AM_HAL_STATUS_INVALID_HANDLE; } #endif // AM_HAL_DISABLE_API_VALIDATION ui32Module = pMSPIState->ui32Module; // // clear the requested interrupts. // MSPIn(ui32Module)->INTCLR = ui32IntMask; // // Return the status. // return AM_HAL_STATUS_SUCCESS; } // // MSPI interrupt service routine // uint32_t am_hal_mspi_interrupt_service(void *pHandle, uint32_t ui32IntStatus) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; uint32_t ui32Module; uint32_t ui32Status; #ifndef AM_HAL_DISABLE_API_VALIDATION // // Check the handle. // if (!AM_HAL_MSPI_CHK_HANDLE(pHandle)) { return AM_HAL_STATUS_INVALID_HANDLE; } #endif // AM_HAL_DISABLE_API_VALIDATION ui32Module = pMSPIState->ui32Module; // // Add a delay to help make the service function work. // TODO - why do we need this? // // am_hal_flash_delay(FLASH_CYCLES_US(10)); #if MSPI_USE_CQ if (pMSPIState->bHP) { #if 0 if (ui32IntStatus & AM_HAL_MSPI_INT_CQUPD) { while(1); } #endif // // Accumulate the INTSTAT for this transaction // pMSPIState->ui32TxnInt |= ui32IntStatus; // // We need to wait for the DMA complete as well // if (pMSPIState->ui32TxnInt & (AM_HAL_MSPI_INT_DMACMP | AM_HAL_MSPI_INT_ERR)) { uint32_t index; // // Wait for the command completion // if (!(pMSPIState->ui32TxnInt & AM_HAL_MSPI_INT_CMDCMP)) { // TODO - We are waiting for CMDCMP indefinetely in the ISR // May need to re-evaluate while (!MSPIn(ui32Module)->INTSTAT_b.CMDCMP); } pMSPIState->ui32TxnInt |= MSPIn(ui32Module)->INTSTAT; // // Clear the interrupt status // MSPIn(ui32Module)->INTCLR = AM_HAL_MSPI_INT_ALL; // // Need to determine the error, call the callback with proper status // if (pMSPIState->ui32TxnInt & AM_HAL_MSPI_INT_ERR) { ui32Status = AM_HAL_STATUS_FAIL; // // Disable DMA // MSPIn(ui32Module)->DMACFG_b.DMAEN = 0; // // Must reset xfer block // MSPIn(ui32Module)->MSPICFG_b.IPRSTN = 0; // in reset MSPIn(ui32Module)->MSPICFG_b.IPRSTN = 1; // back out -- clears current transfer } else { ui32Status = AM_HAL_STATUS_SUCCESS; } pMSPIState->ui32LastHPIdxProcessed++; pMSPIState->ui32NumHPEntries--; index = pMSPIState->ui32LastHPIdxProcessed % pMSPIState->ui32MaxHPTransactions; am_hal_mspi_dma_entry_t *pDMAEntry = &pMSPIState->pHPTransactions[index]; // // Call the callback // if ( pDMAEntry->pfnCallback != NULL ) { pDMAEntry->pfnCallback(pDMAEntry->pCallbackCtxt, ui32Status); pDMAEntry->pfnCallback = NULL; } // // Post next transaction if queue is not empty // if (pMSPIState->ui32NumHPEntries) { pMSPIState->ui32TxnInt = 0; program_dma(pMSPIState); } else { pMSPIState->bHP = false; // Unpause the CQ // // Command to set the DMACFG to disable DMA. // Need to make sure we disable DMA before we can reprogram // MSPIn(ui32Module)->DMACFG = _VAL2FLD(MSPI_DMACFG_DMAEN, 0); // Restore interrupts MSPIn(ui32Module)->INTEN &= ~(AM_HAL_MSPI_INT_DMACMP | AM_HAL_MSPI_INT_CMDCMP); // Resume the CQ MSPIn(ui32Module)->CQSETCLEAR = AM_HAL_MSPI_SC_UNPAUSE_CQ; } } return AM_HAL_STATUS_SUCCESS; } #endif // // Need to check if there is an ongoing transaction // This is needed because we may get interrupts even for the XIP transactions // if (pMSPIState->ui32NumCQEntries) { #if MSPI_USE_CQ am_hal_cmdq_status_t status; uint32_t index; am_hal_mspi_CQ_t *pCQ = &g_MSPIState[ui32Module].CQ; // // Get the current and last indexes. // if (pCQ->pCmdQHdl) { ui32Status = am_hal_cmdq_get_status(pCQ->pCmdQHdl, &status); if (AM_HAL_STATUS_SUCCESS == ui32Status) { // For Sequence - this can be updated in the callback pMSPIState->bRestart = false; // // Figure out which callbacks need to be handled. // while (!pMSPIState->bRestart && (pMSPIState->ui32LastIdxProcessed != status.lastIdxProcessed)) { pMSPIState->ui32LastIdxProcessed++; pMSPIState->ui32NumCQEntries--; index = pMSPIState->ui32LastIdxProcessed & (AM_HAL_MSPI_MAX_CQ_ENTRIES - 1); if ( pMSPIState->pfnCallback[index] != NULL ) { pMSPIState->pfnCallback[index](pMSPIState->pCallbackCtxt[index], AM_HAL_STATUS_SUCCESS); if (pMSPIState->eSeq != AM_HAL_MSPI_SEQ_RUNNING) { pMSPIState->pfnCallback[index] = NULL; } } } // For Sequence - this can be updated in the callback if (!pMSPIState->bRestart) { // // Process one extra callback if there was an error. // if ( (ui32IntStatus & AM_HAL_MSPI_INT_ERR) || (status.bErr) ) { pMSPIState->ui32LastIdxProcessed++; pMSPIState->ui32NumCQEntries--; index = pMSPIState->ui32LastIdxProcessed & (AM_HAL_MSPI_MAX_CQ_ENTRIES - 1); if ( pMSPIState->pfnCallback[index] != NULL ) { pMSPIState->pfnCallback[index](pMSPIState->pCallbackCtxt[index], AM_HAL_STATUS_FAIL); if (pMSPIState->eSeq != AM_HAL_MSPI_SEQ_RUNNING) { pMSPIState->pfnCallback[index] = NULL; } } // Disable CQ ui32Status = mspi_cq_disable(pMSPIState); if (AM_HAL_STATUS_SUCCESS != ui32Status) { return ui32Status; } // Disable DMA MSPIn(ui32Module)->DMACFG_b.DMAEN = 0; // Must reset xfer block MSPIn(ui32Module)->MSPICFG_b.IPRSTN = 0; // in reset MSPIn(ui32Module)->MSPICFG_b.IPRSTN = 1; // back out -- clears current transfer // Clear the CQ error. MSPIn(ui32Module)->CQSTAT |= _VAL2FLD(MSPI_CQSTAT_CQERR, 0); am_hal_cmdq_error_resume(pCQ->pCmdQHdl); if (pMSPIState->ui32NumCQEntries) { // Re-enable CQ ui32Status = mspi_cq_enable(pMSPIState); if (AM_HAL_STATUS_SUCCESS != ui32Status) { return ui32Status; } } } if (pMSPIState->ui32NumCQEntries == 0) { // Disable CQ ui32Status = mspi_cq_disable(pMSPIState); if (AM_HAL_STATUS_SUCCESS != ui32Status) { return ui32Status; } } } } } #else // // Accumulate the INTSTAT for this transaction // pMSPIState->ui32TxnInt |= ui32IntStatus; // // We need to wait for the DMA complete as well // if (pMSPIState->ui32TxnInt & (AM_HAL_MSPI_INT_DMACMP | AM_HAL_MSPI_INT_ERR)) { uint32_t index; // // Wait for the command completion // if (!(pMSPIState->ui32TxnInt & AM_HAL_MSPI_INT_CMDCMP)) { // TODO - We are waiting for CMDCMP indefinetely in the ISR // May need to re-evaluate while (!MSPIn(ui32Module)->INTSTAT_b.CMDCMP); } pMSPIState->ui32TxnInt |= MSPIn(ui32Module)->INTSTAT; // // Clear the interrupt status // MSPIn(ui32Module)->INTCLR = AM_HAL_MSPI_INT_ALL; // // Need to determine the error, call the callback with proper status // if (pMSPIState->ui32TxnInt & AM_HAL_MSPI_INT_ERR) { ui32Status = AM_HAL_STATUS_FAIL; // // Disable DMA // MSPIn(ui32Module)->DMACFG_b.DMAEN = 0; // // Must reset xfer block // MSPIn(ui32Module)->MSPICFG_b.IPRSTN = 0; // in reset MSPIn(ui32Module)->MSPICFG_b.IPRSTN = 1; // back out -- clears current transfer } else { ui32Status = AM_HAL_STATUS_SUCCESS; } pMSPIState->ui32LastIdxProcessed++; pMSPIState->ui32NumCQEntries--; index = pMSPIState->ui32LastIdxProcessed % pMSPIState->ui32MaxTransactions; // // Call the callback // if ( pMSPIState->pfnCallback[index] != NULL ) { pMSPIState->pfnCallback[index](pMSPIState->pCallbackCtxt[index], ui32Status); pMSPIState->pfnCallback[index] = NULL; } // // Post next transaction if queue is not empty // if (pMSPIState->ui32NumCQEntries) { index = (pMSPIState->ui32LastIdxProcessed + 1) % pMSPIState->ui32MaxTransactions; pMSPIState->ui32TxnInt = 0; run_txn_cmdlist(&pMSPIState->pTransactions[index], sizeof(am_hal_mspi_cq_dma_entry_t) / sizeof(am_hal_cmdq_entry_t)); } } #endif // !MSPI_USE_CQ if (pMSPIState->ui32NumCQEntries == 0) { // Disable DMA MSPIn(ui32Module)->DMACFG_b.DMAEN = 0; } } // // Return the status. // return AM_HAL_STATUS_SUCCESS; } // // MSPI power control function // uint32_t am_hal_mspi_power_control(void *pHandle, am_hal_sysctrl_power_state_e ePowerState, bool bRetainState) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; #ifndef AM_HAL_DISABLE_API_VALIDATION // // Check the handle. // if (!AM_HAL_MSPI_CHK_HANDLE(pHandle)) { return AM_HAL_STATUS_INVALID_HANDLE; } #endif // AM_HAL_DISABLE_API_VALIDATION // // Decode the requested power state and update MSPI operation accordingly. // switch (ePowerState) { case AM_HAL_SYSCTRL_WAKE: if (bRetainState && !pMSPIState->registerState.bValid) { return AM_HAL_STATUS_INVALID_OPERATION; } // // Enable power control. // am_hal_pwrctrl_periph_enable((am_hal_pwrctrl_periph_e)(AM_HAL_PWRCTRL_PERIPH_MSPI)); if (bRetainState) { // // Restore MSPI registers // MSPIn(pMSPIState->ui32Module)->CFG = pMSPIState->registerState.regCFG; MSPIn(pMSPIState->ui32Module)->MSPICFG = pMSPIState->registerState.regMSPICFG; MSPIn(pMSPIState->ui32Module)->PADCFG = pMSPIState->registerState.regPADCFG; MSPIn(pMSPIState->ui32Module)->PADOUTEN = pMSPIState->registerState.regPADOUTEN; MSPIn(pMSPIState->ui32Module)->FLASH = pMSPIState->registerState.regFLASH; MSPIn(pMSPIState->ui32Module)->SCRAMBLING = pMSPIState->registerState.regSCRAMBLING; MSPIn(pMSPIState->ui32Module)->CQADDR = pMSPIState->registerState.regCQADDR; MSPIn(pMSPIState->ui32Module)->CQPAUSE = pMSPIState->registerState.regCQPAUSE; MSPIn(pMSPIState->ui32Module)->CQCURIDX = pMSPIState->registerState.regCQCURIDX; MSPIn(pMSPIState->ui32Module)->CQENDIDX = pMSPIState->registerState.regCQENDIDX; MSPIn(pMSPIState->ui32Module)->INTEN = pMSPIState->registerState.regINTEN; // TODO: May be we can just set these values, as they are constants anyways? MSPIn(pMSPIState->ui32Module)->DMABCOUNT = pMSPIState->registerState.regDMABCOUNT; MSPIn(pMSPIState->ui32Module)->DMATHRESH = pMSPIState->registerState.regDMATHRESH; // CQFGLAGS are Read-Only and hence can not be directly restored. // We can try to restore the SWFlags here. Hardware flags depend on external conditions // and hence can not be restored (assuming the external conditions remain the same, it should be set automatically. MSPIn(pMSPIState->ui32Module)->CQSETCLEAR = AM_HAL_MSPI_SC_SET(pMSPIState->registerState.regCQFLAGS & 0xFF); // // Set the CQCFG last // MSPIn(pMSPIState->ui32Module)->CQCFG = pMSPIState->registerState.regCQCFG; pMSPIState->registerState.bValid = false; } break; case AM_HAL_SYSCTRL_NORMALSLEEP: case AM_HAL_SYSCTRL_DEEPSLEEP: // Make sure MPSI is not active currently if (pMSPIState->prefix.s.bEnable && ((MSPIn(pMSPIState->ui32Module)->DMASTAT_b.DMATIP) || pMSPIState->ui32NumHPPendingEntries)) { return AM_HAL_STATUS_IN_USE; } if (bRetainState) { // // Save MSPI Registers // pMSPIState->registerState.regCFG = MSPIn(pMSPIState->ui32Module)->CFG; pMSPIState->registerState.regMSPICFG = MSPIn(pMSPIState->ui32Module)->MSPICFG; pMSPIState->registerState.regPADCFG = MSPIn(pMSPIState->ui32Module)->PADCFG; pMSPIState->registerState.regPADOUTEN = MSPIn(pMSPIState->ui32Module)->PADOUTEN; pMSPIState->registerState.regFLASH = MSPIn(pMSPIState->ui32Module)->FLASH; pMSPIState->registerState.regSCRAMBLING = MSPIn(pMSPIState->ui32Module)->SCRAMBLING; pMSPIState->registerState.regCQADDR = MSPIn(pMSPIState->ui32Module)->CQADDR; pMSPIState->registerState.regCQPAUSE = MSPIn(pMSPIState->ui32Module)->CQPAUSE; pMSPIState->registerState.regCQFLAGS = MSPIn(pMSPIState->ui32Module)->CQFLAGS; pMSPIState->registerState.regCQCURIDX = MSPIn(pMSPIState->ui32Module)->CQCURIDX; pMSPIState->registerState.regCQENDIDX = MSPIn(pMSPIState->ui32Module)->CQENDIDX; pMSPIState->registerState.regINTEN = MSPIn(pMSPIState->ui32Module)->INTEN; // TODO: May be no need to store these values, as they are constants anyways? pMSPIState->registerState.regDMABCOUNT = MSPIn(pMSPIState->ui32Module)->DMABCOUNT; pMSPIState->registerState.regDMATHRESH = MSPIn(pMSPIState->ui32Module)->DMATHRESH; pMSPIState->registerState.regCQCFG = MSPIn(pMSPIState->ui32Module)->CQCFG; pMSPIState->registerState.bValid = true; } // // Disable all the interrupts. // am_hal_mspi_interrupt_disable(pHandle, MSPI_INTEN_SCRERR_Msk | MSPI_INTEN_CQERR_Msk | MSPI_INTEN_CQPAUSED_Msk | MSPI_INTEN_CQUPD_Msk | MSPI_INTEN_CQCMP_Msk | MSPI_INTEN_DERR_Msk | MSPI_INTEN_DCMP_Msk | MSPI_INTEN_RXF_Msk | MSPI_INTEN_RXO_Msk | MSPI_INTEN_RXU_Msk | MSPI_INTEN_TXO_Msk | MSPI_INTEN_TXE_Msk | MSPI_INTEN_CMDCMP_Msk); // // Disable power control. // am_hal_pwrctrl_periph_disable((am_hal_pwrctrl_periph_e)(AM_HAL_PWRCTRL_PERIPH_MSPI)); break; default: return AM_HAL_STATUS_INVALID_ARG; } // // Return the status. // return AM_HAL_STATUS_SUCCESS; } // // MSPI High Priority transfer function // uint32_t am_hal_mspi_highprio_transfer(void *pHandle, am_hal_mspi_dma_transfer_t *pTransfer, am_hal_mspi_trans_e eMode, am_hal_mspi_callback_t pfnCallback, void *pCallbackCtxt) { am_hal_mspi_state_t *pMSPIState = (am_hal_mspi_state_t *)pHandle; uint32_t ui32Status = AM_HAL_STATUS_SUCCESS; #ifndef AM_HAL_DISABLE_API_VALIDATION // // Check the handle. // if (!AM_HAL_MSPI_CHK_HANDLE(pHandle)) { return AM_HAL_STATUS_INVALID_HANDLE; } if (!pMSPIState->pTCB) { return AM_HAL_STATUS_INVALID_OPERATION; } if (!pMSPIState->pHPTransactions) { return AM_HAL_STATUS_INVALID_OPERATION; } if (pTransfer->ui32PauseCondition != 0) { return AM_HAL_STATUS_INVALID_ARG; } if (pTransfer->ui32StatusSetClr != 0) { return AM_HAL_STATUS_INVALID_ARG; } // // Check that the interface is enabled. // if (!pMSPIState->prefix.s.bEnable) { return AM_HAL_STATUS_INVALID_OPERATION; } #endif // AM_HAL_DISABLE_API_VALIDATION #if MSPI_USE_CQ ui32Status = mspi_add_hp_transaction(pHandle, pTransfer, pfnCallback, pCallbackCtxt); if (ui32Status == AM_HAL_STATUS_SUCCESS) { if (!(pMSPIState->block)) { ui32Status = sched_hiprio(pMSPIState, 1); } else { pMSPIState->ui32NumHPPendingEntries++; } } #else ui32Status = AM_HAL_STATUS_INVALID_OPERATION; #endif // !MSPI_USE_CQ // // Return the status. // return ui32Status; } //***************************************************************************** // // End Doxygen group. //! @} // //*****************************************************************************