| 1 | /* $NetBSD: mtd803var.h,v 1.10 2015/04/13 16:33:24 riastradh Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2002 The NetBSD Foundation, Inc. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * This code is derived from software contributed to The NetBSD Foundation |
| 8 | * by Peter Bex <Peter.Bex@student.kun.nl>. |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * 1. Redistributions of source code must retain the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer. |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer in the |
| 17 | * documentation and/or other materials provided with the distribution. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 29 | * POSSIBILITY OF SUCH DAMAGE. |
| 30 | */ |
| 31 | |
| 32 | #include <sys/device.h> |
| 33 | #include <sys/socket.h> |
| 34 | #include <sys/rndsource.h> |
| 35 | #include <net/if.h> |
| 36 | #include <net/if_ether.h> |
| 37 | #include <net/if_media.h> |
| 38 | #include <dev/mii/miivar.h> |
| 39 | |
| 40 | |
| 41 | /* Number of Tx and Rx descriptors */ |
| 42 | #define MTD_NUM_TXD 64 |
| 43 | #define MTD_NUM_RXD 64 |
| 44 | /* Tx and Rx buffer size */ |
| 45 | #define MTD_RXBUF_SIZE 1536 |
| 46 | #define MTD_TXBUF_SIZE 1536 |
| 47 | |
| 48 | /* DMA mem must be longword (4 bytes) aligned */ |
| 49 | #define MTD_DMA_ALIGN 4 |
| 50 | |
| 51 | |
| 52 | /* Descriptor structure */ |
| 53 | struct mtd_desc { |
| 54 | u_int32_t stat; /* Status field */ |
| 55 | u_int32_t conf; /* Config field */ |
| 56 | u_int32_t data; /* Data buffer start address */ |
| 57 | u_int32_t next; /* Next descriptor address */ |
| 58 | }; |
| 59 | |
| 60 | /* Softc struct */ |
| 61 | struct mtd_softc { |
| 62 | device_t dev; |
| 63 | struct mii_data mii; |
| 64 | struct ethercom ethercom; |
| 65 | bus_space_tag_t bus_tag; |
| 66 | bus_space_handle_t bus_handle; |
| 67 | void * sd_hook; |
| 68 | u_int8_t eaddr[ETHER_ADDR_LEN]; |
| 69 | volatile unsigned int cur_tx; |
| 70 | volatile unsigned int cur_rx; |
| 71 | |
| 72 | bus_dma_tag_t dma_tag; |
| 73 | struct mtd_desc * desc; |
| 74 | bus_dmamap_t desc_dma_map; |
| 75 | void * buf; |
| 76 | bus_dmamap_t buf_dma_map; |
| 77 | |
| 78 | krndsource_t rnd_src; |
| 79 | }; |
| 80 | |
| 81 | |
| 82 | /* Transmit descriptor layout */ |
| 83 | /* Status register */ |
| 84 | #define MTD_TXD_OWNER 0x80000000 /* Owner bit */ |
| 85 | #define MTD_TXD_RSRVD0 0x7fffc000 /* Bits [30:14] are reserved */ |
| 86 | #define MTD_TXD_ABORT 0x00002000 /* Transmit aborted */ |
| 87 | #define MTD_TXD_CSL 0x00001000 /* Carrier Sense Loss */ |
| 88 | #define MTD_TXD_LCOL 0x00000800 /* Late collision */ |
| 89 | #define MTD_TXD_EXCOL 0x00000400 /* Excessive collisions */ |
| 90 | #define MTD_TXD_DFD 0x00000200 /* Deferred */ |
| 91 | #define MTD_TXD_HBFAIL 0x00000100 /* Heart-beat failure */ |
| 92 | #define MTD_TXD_NRC 0x000000ff /* Collision Retry Count */ |
| 93 | /* Configuration register */ |
| 94 | #define MTD_TXD_CONF_IRQC 0x80000000 /* Interrupt control */ |
| 95 | #define MTD_TXD_CONF_EIRQC 0x40000000 /* Early interrupt control */ |
| 96 | #define MTD_TXD_CONF_LSD 0x20000000 /* Last descriptor */ |
| 97 | #define MTD_TXD_CONF_FSD 0x10000000 /* First descriptor */ |
| 98 | #define MTD_TXD_CONF_CRC 0x08000000 /* CRC append */ |
| 99 | #define MTD_TXD_CONF_PAD 0x04000000 /* Pad control */ |
| 100 | #define MTD_TXD_CONF_RLCOL 0x02000000 /* Retry Late Collision */ |
| 101 | #define MTD_TXD_CONF_RSRVD0 0x01c00000 /* Bits [24:22] are reserved */ |
| 102 | #define MTD_TXD_CONF_PKTS 0x003ff800 /* Packet size */ |
| 103 | #define MTD_TXD_CONF_BUFS 0x000007ff /* Transmit buffer size */ |
| 104 | |
| 105 | #define MTD_TXD_PKTS_SHIFT 11 |
| 106 | |
| 107 | /* Receive descriptor layout */ |
| 108 | /* Status register */ |
| 109 | #define MTD_RXD_OWNER 0x80000000 /* Owner bit */ |
| 110 | #define MTD_RXD_RSRVD3 0x70000000 /* Bits [30:28] are reserved */ |
| 111 | #define MTD_RXD_FLEN 0x0fff0000 /* Frame length */ |
| 112 | #define MTD_RXD_RSRVD2 0x00008000 /* Bit 15 is reserved */ |
| 113 | #define MTD_RXD_MAR 0x00004000 /* Multicast Address Received */ |
| 114 | #define MTD_RXD_BAR 0x00002000 /* Broadcast Address Received */ |
| 115 | #define MTD_RXD_PAR 0x00001000 /* Physical Address Received */ |
| 116 | #define MTD_RXD_FSD 0x00000800 /* First Descriptor */ |
| 117 | #define MTD_RXD_LSD 0x00000400 /* Last Descriptor */ |
| 118 | #define MTD_RXD_RSRVD1 0x00000300 /* Bits [9:8] are reserved */ |
| 119 | #define MTD_RXD_ERRSUM 0x00000080 /* Error summary */ |
| 120 | #define MTD_RXD_RUNT 0x00000040 /* Runt packet received */ |
| 121 | #define MTD_RXD_LONG 0x00000020 /* Long packet received */ |
| 122 | #define MTD_RXD_FALERR 0x00000010 /* Frame alignment error */ |
| 123 | #define MTD_RXD_CRC 0x00000008 /* CRC error. See manual :) */ |
| 124 | #define MTD_RXD_RXERR 0x00000004 /* Receive error */ |
| 125 | #define MTD_RXD_RSRVD0 0x00000003 /* Bits [1:0] are reserved */ |
| 126 | /* Configuration register */ |
| 127 | #define MTD_RXD_CONF_RSRVD0 0xfffff800 /* Bits [31:11] are reserved */ |
| 128 | #define MTD_RXD_CONF_BUFS 0x000007ff /* Receive buffer size */ |
| 129 | |
| 130 | #define MTD_RXD_FLEN_SHIFT 16 |
| 131 | |
| 132 | extern int mtd_config(struct mtd_softc *); |
| 133 | extern int mtd_irq_h(void *); |
| 134 | |