Annotation of sys/dev/ic/mtd8xxvar.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: mtd8xxvar.h,v 1.3 2004/09/28 04:37:32 brad Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 2003 Oleg Safiullin <form@pdp11.org.ru>
! 5: * All rights reserved.
! 6: *
! 7: * Redistribution and use in source and binary forms, with or without
! 8: * modification, are permitted provided that the following conditions
! 9: * are met:
! 10: * 1. Redistributions of source code must retain the above copyright
! 11: * notice unmodified, this list of conditions, and the following
! 12: * disclaimer.
! 13: * 2. Redistributions in binary form must reproduce the above copyright
! 14: * notice, this list of conditions and the following disclaimer in the
! 15: * documentation and/or other materials provided with the distribution.
! 16: *
! 17: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
! 18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 20: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
! 21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 27: * SUCH DAMAGE.
! 28: *
! 29: */
! 30:
! 31: #ifndef __DEV_IC_MTD8XXVAR_H__
! 32: #define __DEV_IC_MTD8XXVAR_H__
! 33:
! 34: #define MTD_RX_LIST_CNT 64
! 35: #define MTD_TX_LIST_CNT 128
! 36:
! 37: /*
! 38: * Transmit descriptor structure.
! 39: */
! 40: struct mtd_tx_desc {
! 41: u_int32_t td_tsw; /* Transmit status word */
! 42: #define TSW_OWN 0x80000000U /* Descriptor owned by NIC */
! 43: #define TSW_TXERR 0x00008000U /* Transmission error */
! 44: #define TSW_ABORT 0x00002000U /* Transmission aborted */
! 45: #define TSW_CSL 0x00001000U /* Carrier sense lost */
! 46: #define TSW_LC 0x00000800U /* Late collision occurs */
! 47: #define TSW_EC 0x00000400U /* Excessive collisions */
! 48: #define TSW_DFR 0x00000200U /* Deferred */
! 49: #define TSW_HF 0x00000100U /* Heart beat failure */
! 50: #define TSW_NCR_MASK 0x000000FFU
! 51: #define TSW_NCR_SHIFT 0
! 52: #define TSW_NCR_GET(x) (((x) & TSW_NCR_MASK) >> TSW_NCR_SHIFT)
! 53: /* Collision retry count */
! 54: #define TSW_UNSENT 0x00001234U /* Unsent packet magic */
! 55: u_int32_t td_tcw; /* Transmit configure word */
! 56: #define TCW_IC 0x80000000U /* Interrupt control */
! 57: #define TCW_EIC 0x40000000U /* Early interrupt control */
! 58: #define TCW_LD 0x20000000U /* Last descriptor */
! 59: #define TCW_FD 0x10000000U /* First descriptor */
! 60: #define TCW_CRC 0x08000000U /* Append CRC field to packet */
! 61: #define TCW_PAD 0x04000000U /* Pad zeroes to the end of packet */
! 62: #define TCW_RTLC 0x02000000U /* Retry late collision */
! 63: #define TCW_PKTS_MASK 0x00003FF8U
! 64: #define TCW_PKTS_SHIFT 11
! 65: #define TCW_PKTS_GET(x) (((x) & TCW_PKTS_MASK) >> TCW_PKTS_SHIFT)
! 66: /* Packet size */
! 67: #define TCW_TBS_MASK 0x000007FFU
! 68: #define TCW_TBS_SHIFT 0
! 69: #define TCW_TBS_GET(x) (((x) & TCW_TBS_MASK) >> TCW_TBS_SHIFT)
! 70: /* Transmit buffer size */
! 71: u_int32_t td_buf; /* Transmit buffer address */
! 72: u_int32_t td_next; /* Next descriptor address */
! 73: };
! 74:
! 75:
! 76: /*
! 77: * Receive descriptor structure.
! 78: */
! 79: struct mtd_rx_desc {
! 80: u_int32_t rd_rsr; /* Receive status register */
! 81: #define RSR_OWN 0x80000000U /* Descriptor owned by NIC */
! 82: #define RSR_FLNG_MASK 0x0FFF0000U
! 83: #define RSR_FLNG_SHIFT 16
! 84: #define RSR_FLNG_GET(x) (((x) & RSR_FLNG_MASK) >> RSR_FLNG_SHIFT)
! 85: /* Frame length */
! 86: #define RSR_MAR 0x00004000U /* Multicast address received */
! 87: #define RSR_BAR 0x00002000U /* Broadcast address received */
! 88: #define RSR_PHY 0x00001000U /* Physical address received */
! 89: #define RSR_FSD 0x00000800U /* First descriptor */
! 90: #define RSR_LSD 0x00000400U /* Last descriptor */
! 91: #define RSR_ES 0x00000080U /* Error summary */
! 92: #define RSR_RUNT 0x00000040U /* Runt packet received */
! 93: #define RSR_LONG 0x00000020U /* Long packet received */
! 94: #define RSR_FAE 0x00000010U /* Frame alignment error */
! 95: #define RSR_CRC 0x00000008U /* CRC error */
! 96: #define RSR_RXER 0x00000004U /* Receive error */
! 97: u_int32_t rd_rcw; /* Receive configure word */
! 98: #define RCW_RBS_MASK 0x000007FFU
! 99: #define RCW_RBS_SHIFT 0
! 100: #define RCW_RBS_GET(x) (((x) & RCW_RBS_MASK) >> RCW_RBS_SHIFT)
! 101: u_int32_t rd_buf; /* Receive buffer address */
! 102: u_int32_t rd_next; /* Next descriptor address */
! 103: };
! 104:
! 105:
! 106: struct mtd_list_data {
! 107: struct mtd_rx_desc mtd_rx_list[MTD_RX_LIST_CNT];
! 108: struct mtd_tx_desc mtd_tx_list[MTD_TX_LIST_CNT];
! 109: };
! 110:
! 111:
! 112: struct mtd_swdesc {
! 113: bus_dmamap_t sd_map;
! 114: struct mbuf *sd_mbuf;
! 115: };
! 116:
! 117:
! 118: struct mtd_chain_data {
! 119: struct mtd_swdesc mtd_rx_chain[MTD_RX_LIST_CNT];
! 120: struct mtd_swdesc mtd_tx_chain[MTD_TX_LIST_CNT];
! 121: int mtd_tx_prod;
! 122: int mtd_tx_cons;
! 123: int mtd_tx_cnt;
! 124: int mtd_rx_prod;
! 125: };
! 126:
! 127:
! 128: struct mtd_softc {
! 129: struct device sc_dev;
! 130: struct arpcom sc_arpcom;
! 131: struct mii_data sc_mii;
! 132: pci_product_id_t sc_devid;
! 133:
! 134: bus_space_handle_t sc_bush;
! 135: bus_space_tag_t sc_bust;
! 136:
! 137: struct mtd_list_data *mtd_ldata;
! 138: struct mtd_chain_data mtd_cdata;
! 139:
! 140: bus_dma_tag_t sc_dmat;
! 141: bus_dmamap_t sc_listmap;
! 142: bus_dma_segment_t sc_listseg[1];
! 143: int sc_listnseg;
! 144: caddr_t sc_listkva;
! 145: bus_dmamap_t sc_rx_sparemap;
! 146: bus_dmamap_t sc_tx_sparemap;
! 147: };
! 148:
! 149: __BEGIN_DECLS
! 150: void mtd_attach(struct mtd_softc *);
! 151: int mtd_intr(void *);
! 152: __END_DECLS
! 153:
! 154: #endif /* __DEV_IC_MTD8XXVAR_H__ */
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