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/* $OpenBSD: mtd8xxvar.h,v 1.4 2014/09/06 05:41:35 jsg Exp $ */
/*
* Copyright (c) 2003 Oleg Safiullin <form@pdp11.org.ru>
* 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 unmodified, 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
*/
#ifndef __DEV_IC_MTD8XXVAR_H__
#define __DEV_IC_MTD8XXVAR_H__
#define MTD_RX_LIST_CNT 64
#define MTD_TX_LIST_CNT 128
/*
* Transmit descriptor structure.
*/
struct mtd_tx_desc {
u_int32_t td_tsw; /* Transmit status word */
#define TSW_OWN 0x80000000U /* Descriptor owned by NIC */
#define TSW_TXERR 0x00008000U /* Transmission error */
#define TSW_ABORT 0x00002000U /* Transmission aborted */
#define TSW_CSL 0x00001000U /* Carrier sense lost */
#define TSW_LC 0x00000800U /* Late collision occurs */
#define TSW_EC 0x00000400U /* Excessive collisions */
#define TSW_DFR 0x00000200U /* Deferred */
#define TSW_HF 0x00000100U /* Heart beat failure */
#define TSW_NCR_MASK 0x000000FFU
#define TSW_NCR_SHIFT 0
#define TSW_NCR_GET(x) (((x) & TSW_NCR_MASK) >> TSW_NCR_SHIFT)
/* Collision retry count */
#define TSW_UNSENT 0x00001234U /* Unsent packet magic */
u_int32_t td_tcw; /* Transmit configure word */
#define TCW_IC 0x80000000U /* Interrupt control */
#define TCW_EIC 0x40000000U /* Early interrupt control */
#define TCW_LD 0x20000000U /* Last descriptor */
#define TCW_FD 0x10000000U /* First descriptor */
#define TCW_CRC 0x08000000U /* Append CRC field to packet */
#define TCW_PAD 0x04000000U /* Pad zeroes to the end of packet */
#define TCW_RTLC 0x02000000U /* Retry late collision */
#define TCW_PKTS_MASK 0x00003FF8U
#define TCW_PKTS_SHIFT 11
#define TCW_PKTS_GET(x) (((x) & TCW_PKTS_MASK) >> TCW_PKTS_SHIFT)
/* Packet size */
#define TCW_TBS_MASK 0x000007FFU
#define TCW_TBS_SHIFT 0
#define TCW_TBS_GET(x) (((x) & TCW_TBS_MASK) >> TCW_TBS_SHIFT)
/* Transmit buffer size */
u_int32_t td_buf; /* Transmit buffer address */
u_int32_t td_next; /* Next descriptor address */
};
/*
* Receive descriptor structure.
*/
struct mtd_rx_desc {
u_int32_t rd_rsr; /* Receive status register */
#define RSR_OWN 0x80000000U /* Descriptor owned by NIC */
#define RSR_FLNG_MASK 0x0FFF0000U
#define RSR_FLNG_SHIFT 16
#define RSR_FLNG_GET(x) (((x) & RSR_FLNG_MASK) >> RSR_FLNG_SHIFT)
/* Frame length */
#define RSR_MAR 0x00004000U /* Multicast address received */
#define RSR_BAR 0x00002000U /* Broadcast address received */
#define RSR_PHY 0x00001000U /* Physical address received */
#define RSR_FSD 0x00000800U /* First descriptor */
#define RSR_LSD 0x00000400U /* Last descriptor */
#define RSR_ES 0x00000080U /* Error summary */
#define RSR_RUNT 0x00000040U /* Runt packet received */
#define RSR_LONG 0x00000020U /* Long packet received */
#define RSR_FAE 0x00000010U /* Frame alignment error */
#define RSR_CRC 0x00000008U /* CRC error */
#define RSR_RXER 0x00000004U /* Receive error */
u_int32_t rd_rcw; /* Receive configure word */
#define RCW_RBS_MASK 0x000007FFU
#define RCW_RBS_SHIFT 0
#define RCW_RBS_GET(x) (((x) & RCW_RBS_MASK) >> RCW_RBS_SHIFT)
u_int32_t rd_buf; /* Receive buffer address */
u_int32_t rd_next; /* Next descriptor address */
};
struct mtd_list_data {
struct mtd_rx_desc mtd_rx_list[MTD_RX_LIST_CNT];
struct mtd_tx_desc mtd_tx_list[MTD_TX_LIST_CNT];
};
struct mtd_swdesc {
bus_dmamap_t sd_map;
struct mbuf *sd_mbuf;
};
struct mtd_chain_data {
struct mtd_swdesc mtd_rx_chain[MTD_RX_LIST_CNT];
struct mtd_swdesc mtd_tx_chain[MTD_TX_LIST_CNT];
int mtd_tx_prod;
int mtd_tx_cons;
int mtd_tx_cnt;
int mtd_rx_prod;
};
struct mtd_softc {
struct device sc_dev;
struct arpcom sc_arpcom;
struct mii_data sc_mii;
uint16_t sc_devid;
bus_space_handle_t sc_bush;
bus_space_tag_t sc_bust;
struct mtd_list_data *mtd_ldata;
struct mtd_chain_data mtd_cdata;
bus_dma_tag_t sc_dmat;
bus_dmamap_t sc_listmap;
bus_dma_segment_t sc_listseg[1];
int sc_listnseg;
caddr_t sc_listkva;
bus_dmamap_t sc_rx_sparemap;
bus_dmamap_t sc_tx_sparemap;
};
__BEGIN_DECLS
void mtd_attach(struct mtd_softc *);
int mtd_intr(void *);
__END_DECLS
#endif /* __DEV_IC_MTD8XXVAR_H__ */
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