| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Vince Bridgers | 368 | 98.92% | 2 | 50.00% |
| Chee Nouk Phoon | 3 | 0.81% | 1 | 25.00% |
| Andreas Oetken | 1 | 0.27% | 1 | 25.00% |
| Total | 372 | 4 |
/* Altera TSE SGDMA and MSGDMA Linux driver * Copyright (C) 2014 Altera Corporation. All rights reserved * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope 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. * * You should have received a copy of the GNU General Public License along with * this program. If not, see <http://www.gnu.org/licenses/>. */ #ifndef __ALTERA_MSGDMAHW_H__ #define __ALTERA_MSGDMAHW_H__ /* mSGDMA extended descriptor format */ struct msgdma_extended_desc { u32 read_addr_lo; /* data buffer source address low bits */ u32 write_addr_lo; /* data buffer destination address low bits */ u32 len; /* the number of bytes to transfer * per descriptor */ u32 burst_seq_num; /* bit 31:24 write burst * bit 23:16 read burst * bit 15:0 sequence number */ u32 stride; /* bit 31:16 write stride * bit 15:0 read stride */ u32 read_addr_hi; /* data buffer source address high bits */ u32 write_addr_hi; /* data buffer destination address high bits */ u32 control; /* characteristics of the transfer */ }; /* mSGDMA descriptor control field bit definitions */ #define MSGDMA_DESC_CTL_SET_CH(x) ((x) & 0xff) #define MSGDMA_DESC_CTL_GEN_SOP BIT(8) #define MSGDMA_DESC_CTL_GEN_EOP BIT(9) #define MSGDMA_DESC_CTL_PARK_READS BIT(10) #define MSGDMA_DESC_CTL_PARK_WRITES BIT(11) #define MSGDMA_DESC_CTL_END_ON_EOP BIT(12) #define MSGDMA_DESC_CTL_END_ON_LEN BIT(13) #define MSGDMA_DESC_CTL_TR_COMP_IRQ BIT(14) #define MSGDMA_DESC_CTL_EARLY_IRQ BIT(15) #define MSGDMA_DESC_CTL_TR_ERR_IRQ (0xff << 16) #define MSGDMA_DESC_CTL_EARLY_DONE BIT(24) /* Writing ‘1’ to the ‘go’ bit commits the entire descriptor into the * descriptor FIFO(s) */ #define MSGDMA_DESC_CTL_GO BIT(31) /* Tx buffer control flags */ #define MSGDMA_DESC_CTL_TX_FIRST (MSGDMA_DESC_CTL_GEN_SOP | \ MSGDMA_DESC_CTL_GO) #define MSGDMA_DESC_CTL_TX_MIDDLE (MSGDMA_DESC_CTL_GO) #define MSGDMA_DESC_CTL_TX_LAST (MSGDMA_DESC_CTL_GEN_EOP | \ MSGDMA_DESC_CTL_TR_COMP_IRQ | \ MSGDMA_DESC_CTL_GO) #define MSGDMA_DESC_CTL_TX_SINGLE (MSGDMA_DESC_CTL_GEN_SOP | \ MSGDMA_DESC_CTL_GEN_EOP | \ MSGDMA_DESC_CTL_TR_COMP_IRQ | \ MSGDMA_DESC_CTL_GO) #define MSGDMA_DESC_CTL_RX_SINGLE (MSGDMA_DESC_CTL_END_ON_EOP | \ MSGDMA_DESC_CTL_END_ON_LEN | \ MSGDMA_DESC_CTL_TR_COMP_IRQ | \ MSGDMA_DESC_CTL_EARLY_IRQ | \ MSGDMA_DESC_CTL_TR_ERR_IRQ | \ MSGDMA_DESC_CTL_GO) /* mSGDMA extended descriptor stride definitions */ #define MSGDMA_DESC_TX_STRIDE (0x00010001) #define MSGDMA_DESC_RX_STRIDE (0x00010001) /* mSGDMA dispatcher control and status register map */ struct msgdma_csr { u32 status; /* Read/Clear */ u32 control; /* Read/Write */ u32 rw_fill_level; /* bit 31:16 - write fill level * bit 15:0 - read fill level */ u32 resp_fill_level; /* bit 15:0 */ u32 rw_seq_num; /* bit 31:16 - write sequence number * bit 15:0 - read sequence number */ u32 pad[3]; /* reserved */ }; /* mSGDMA CSR status register bit definitions */ #define MSGDMA_CSR_STAT_BUSY BIT(0) #define MSGDMA_CSR_STAT_DESC_BUF_EMPTY BIT(1) #define MSGDMA_CSR_STAT_DESC_BUF_FULL BIT(2) #define MSGDMA_CSR_STAT_RESP_BUF_EMPTY BIT(3) #define MSGDMA_CSR_STAT_RESP_BUF_FULL BIT(4) #define MSGDMA_CSR_STAT_STOPPED BIT(5) #define MSGDMA_CSR_STAT_RESETTING BIT(6) #define MSGDMA_CSR_STAT_STOPPED_ON_ERR BIT(7) #define MSGDMA_CSR_STAT_STOPPED_ON_EARLY BIT(8) #define MSGDMA_CSR_STAT_IRQ BIT(9) #define MSGDMA_CSR_STAT_MASK 0x3FF #define MSGDMA_CSR_STAT_MASK_WITHOUT_IRQ 0x1FF #define MSGDMA_CSR_STAT_BUSY_GET(v) GET_BIT_VALUE(v, 0) #define MSGDMA_CSR_STAT_DESC_BUF_EMPTY_GET(v) GET_BIT_VALUE(v, 1) #define MSGDMA_CSR_STAT_DESC_BUF_FULL_GET(v) GET_BIT_VALUE(v, 2) #define MSGDMA_CSR_STAT_RESP_BUF_EMPTY_GET(v) GET_BIT_VALUE(v, 3) #define MSGDMA_CSR_STAT_RESP_BUF_FULL_GET(v) GET_BIT_VALUE(v, 4) #define MSGDMA_CSR_STAT_STOPPED_GET(v) GET_BIT_VALUE(v, 5) #define MSGDMA_CSR_STAT_RESETTING_GET(v) GET_BIT_VALUE(v, 6) #define MSGDMA_CSR_STAT_STOPPED_ON_ERR_GET(v) GET_BIT_VALUE(v, 7) #define MSGDMA_CSR_STAT_STOPPED_ON_EARLY_GET(v) GET_BIT_VALUE(v, 8) #define MSGDMA_CSR_STAT_IRQ_GET(v) GET_BIT_VALUE(v, 9) /* mSGDMA CSR control register bit definitions */ #define MSGDMA_CSR_CTL_STOP BIT(0) #define MSGDMA_CSR_CTL_RESET BIT(1) #define MSGDMA_CSR_CTL_STOP_ON_ERR BIT(2) #define MSGDMA_CSR_CTL_STOP_ON_EARLY BIT(3) #define MSGDMA_CSR_CTL_GLOBAL_INTR BIT(4) #define MSGDMA_CSR_CTL_STOP_DESCS BIT(5) /* mSGDMA CSR fill level bits */ #define MSGDMA_CSR_WR_FILL_LEVEL_GET(v) (((v) & 0xffff0000) >> 16) #define MSGDMA_CSR_RD_FILL_LEVEL_GET(v) ((v) & 0x0000ffff) #define MSGDMA_CSR_RESP_FILL_LEVEL_GET(v) ((v) & 0x0000ffff) /* mSGDMA response register map */ struct msgdma_response { u32 bytes_transferred; u32 status; }; #define msgdma_respoffs(a) (offsetof(struct msgdma_response, a)) #define msgdma_csroffs(a) (offsetof(struct msgdma_csr, a)) #define msgdma_descroffs(a) (offsetof(struct msgdma_extended_desc, a)) /* mSGDMA response register bit definitions */ #define MSGDMA_RESP_EARLY_TERM BIT(8) #define MSGDMA_RESP_ERR_MASK 0xFF #endif /* __ALTERA_MSGDMA_H__*/
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