/* SPDX-License-Identifier: GPL-2.0-only */ /* Altera TSE SGDMA and MSGDMA Linux driver * Copyright (C) 2014 Altera Corporation. All rights reserved */ #ifndef __ALTERA_MSGDMAHW_H__ #define __ALTERA_MSGDMAHW_H__ /* mSGDMA extended descriptor format */ struct msgdma_extended_desc { … }; /* mSGDMA descriptor control field bit definitions */ #define MSGDMA_DESC_CTL_SET_CH(x) … #define MSGDMA_DESC_CTL_GEN_SOP … #define MSGDMA_DESC_CTL_GEN_EOP … #define MSGDMA_DESC_CTL_PARK_READS … #define MSGDMA_DESC_CTL_PARK_WRITES … #define MSGDMA_DESC_CTL_END_ON_EOP … #define MSGDMA_DESC_CTL_END_ON_LEN … #define MSGDMA_DESC_CTL_TR_COMP_IRQ … #define MSGDMA_DESC_CTL_EARLY_IRQ … #define MSGDMA_DESC_CTL_TR_ERR_IRQ … #define MSGDMA_DESC_CTL_EARLY_DONE … /* Writing ‘1’ to the ‘go’ bit commits the entire descriptor into the * descriptor FIFO(s) */ #define MSGDMA_DESC_CTL_GO … /* Tx buffer control flags */ #define MSGDMA_DESC_CTL_TX_FIRST … #define MSGDMA_DESC_CTL_TX_MIDDLE … #define MSGDMA_DESC_CTL_TX_LAST … #define MSGDMA_DESC_CTL_TX_SINGLE … #define MSGDMA_DESC_CTL_RX_SINGLE … /* mSGDMA extended descriptor stride definitions */ #define MSGDMA_DESC_TX_STRIDE … #define MSGDMA_DESC_RX_STRIDE … /* mSGDMA dispatcher control and status register map */ struct msgdma_csr { … }; /* mSGDMA CSR status register bit definitions */ #define MSGDMA_CSR_STAT_BUSY … #define MSGDMA_CSR_STAT_DESC_BUF_EMPTY … #define MSGDMA_CSR_STAT_DESC_BUF_FULL … #define MSGDMA_CSR_STAT_RESP_BUF_EMPTY … #define MSGDMA_CSR_STAT_RESP_BUF_FULL … #define MSGDMA_CSR_STAT_STOPPED … #define MSGDMA_CSR_STAT_RESETTING … #define MSGDMA_CSR_STAT_STOPPED_ON_ERR … #define MSGDMA_CSR_STAT_STOPPED_ON_EARLY … #define MSGDMA_CSR_STAT_IRQ … #define MSGDMA_CSR_STAT_MASK … #define MSGDMA_CSR_STAT_MASK_WITHOUT_IRQ … #define MSGDMA_CSR_STAT_BUSY_GET(v) … #define MSGDMA_CSR_STAT_DESC_BUF_EMPTY_GET(v) … #define MSGDMA_CSR_STAT_DESC_BUF_FULL_GET(v) … #define MSGDMA_CSR_STAT_RESP_BUF_EMPTY_GET(v) … #define MSGDMA_CSR_STAT_RESP_BUF_FULL_GET(v) … #define MSGDMA_CSR_STAT_STOPPED_GET(v) … #define MSGDMA_CSR_STAT_RESETTING_GET(v) … #define MSGDMA_CSR_STAT_STOPPED_ON_ERR_GET(v) … #define MSGDMA_CSR_STAT_STOPPED_ON_EARLY_GET(v) … #define MSGDMA_CSR_STAT_IRQ_GET(v) … /* mSGDMA CSR control register bit definitions */ #define MSGDMA_CSR_CTL_STOP … #define MSGDMA_CSR_CTL_RESET … #define MSGDMA_CSR_CTL_STOP_ON_ERR … #define MSGDMA_CSR_CTL_STOP_ON_EARLY … #define MSGDMA_CSR_CTL_GLOBAL_INTR … #define MSGDMA_CSR_CTL_STOP_DESCS … /* mSGDMA CSR fill level bits */ #define MSGDMA_CSR_WR_FILL_LEVEL_GET(v) … #define MSGDMA_CSR_RD_FILL_LEVEL_GET(v) … #define MSGDMA_CSR_RESP_FILL_LEVEL_GET(v) … /* mSGDMA response register map */ struct msgdma_response { … }; #define msgdma_respoffs(a) … #define msgdma_csroffs(a) … #define msgdma_descroffs(a) … /* mSGDMA response register bit definitions */ #define MSGDMA_RESP_EARLY_TERM … #define MSGDMA_RESP_ERR_MASK … #endif /* __ALTERA_MSGDMA_H__*/
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