1 /* 2 * Copyright (c) 1982, 1986, 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)dcareg.h 8.1 (Berkeley) 06/10/93 8 */ 9 10 #include <hp/dev/iotypes.h> /* XXX */ 11 12 #ifdef hp700 13 struct dcadevice { 14 vu_char dca_reset; 15 vu_char dca_pad[0x800-1]; 16 vu_char dca_data; /* receive buf or xmit hold */ 17 vu_char dca_ier; /* interrupt enable */ 18 vu_char dca_iir; /* (RO) interrupt identify */ 19 #define dca_fifo dca_iir /* (WO) FIFO control */ 20 vu_char dca_cfcr; /* line control */ 21 vu_char dca_mcr; /* modem control */ 22 vu_char dca_lsr; /* line status */ 23 vu_char dca_msr; /* modem status */ 24 vu_char dca_scr; /* scratch pad */ 25 }; 26 #else 27 struct dcadevice { 28 /* card registers */ 29 u_char dca_pad0; 30 vu_char dca_id; /* 0x01 (read) */ 31 #define dca_reset dca_id /* 0x01 (write) */ 32 u_char dca_pad1; 33 vu_char dca_ic; /* 0x03 */ 34 u_char dca_pad2; 35 vu_char dca_ocbrc; /* 0x05 */ 36 u_char dca_pad3; 37 vu_char dca_lcsm; /* 0x07 */ 38 u_char dca_pad4[8]; 39 /* chip registers */ 40 u_char dca_pad5; 41 vu_char dca_data; /* 0x11 */ 42 u_char dca_pad6; 43 vu_char dca_ier; /* 0x13 */ 44 u_char dca_pad7; 45 vu_char dca_iir; /* 0x15 (read) */ 46 #define dca_fifo dca_iir /* 0x15 (write) */ 47 u_char dca_pad8; 48 vu_char dca_cfcr; /* 0x17 */ 49 u_char dca_pad9; 50 vu_char dca_mcr; /* 0x19 */ 51 u_char dca_padA; 52 vu_char dca_lsr; /* 0x1B */ 53 u_char dca_padB; 54 vu_char dca_msr; /* 0x1D */ 55 }; 56 #endif 57 58 /* interface reset/id (300 only) */ 59 #define DCAID0 0x02 60 #define DCAREMID0 0x82 61 #define DCAID1 0x42 62 #define DCAREMID1 0xC2 63 64 /* interrupt control (300 only) */ 65 #define DCAIPL(x) ((((x) >> 4) & 3) + 3) 66 #define IC_IR 0x40 67 #define IC_IE 0x80 68 69 /* 70 * 16 bit baud rate divisor (lower byte in dca_data, upper in dca_ier) 71 * NB: This constant is for a 7.3728 clock frequency. The 300 clock 72 * frequency is 2.4576, giving a constant of 153600. 73 */ 74 #ifdef hp300 75 #define DCABRD(x) (153600 / (x)) 76 #endif 77 #ifdef hp700 78 #define DCABRD(x) (460800 / (x)) 79 #endif 80 81 /* interrupt enable register */ 82 #define IER_ERXRDY 0x1 83 #define IER_ETXRDY 0x2 84 #define IER_ERLS 0x4 85 #define IER_EMSC 0x8 86 87 /* interrupt identification register */ 88 #define IIR_IMASK 0xf 89 #define IIR_RXTOUT 0xc 90 #define IIR_RLS 0x6 91 #define IIR_RXRDY 0x4 92 #define IIR_TXRDY 0x2 93 #define IIR_NOPEND 0x1 94 #define IIR_MLSC 0x0 95 #define IIR_FIFO_MASK 0xc0 /* set if FIFOs are enabled */ 96 97 /* fifo control register */ 98 #define FIFO_ENABLE 0x01 99 #define FIFO_RCV_RST 0x02 100 #define FIFO_XMT_RST 0x04 101 #define FIFO_DMA_MODE 0x08 102 #define FIFO_TRIGGER_1 0x00 103 #define FIFO_TRIGGER_4 0x40 104 #define FIFO_TRIGGER_8 0x80 105 #define FIFO_TRIGGER_14 0xc0 106 107 /* character format control register */ 108 #define CFCR_DLAB 0x80 109 #define CFCR_SBREAK 0x40 110 #define CFCR_PZERO 0x30 111 #define CFCR_PONE 0x20 112 #define CFCR_PEVEN 0x10 113 #define CFCR_PODD 0x00 114 #define CFCR_PENAB 0x08 115 #define CFCR_STOPB 0x04 116 #define CFCR_8BITS 0x03 117 #define CFCR_7BITS 0x02 118 #define CFCR_6BITS 0x01 119 #define CFCR_5BITS 0x00 120 121 /* modem control register */ 122 #define MCR_LOOPBACK 0x10 123 #define MCR_IEN 0x08 124 #define MCR_DRS 0x04 125 #define MCR_RTS 0x02 126 #define MCR_DTR 0x01 127 128 /* line status register */ 129 #define LSR_RCV_FIFO 0x80 130 #define LSR_TSRE 0x40 131 #define LSR_TXRDY 0x20 132 #define LSR_BI 0x10 133 #define LSR_FE 0x08 134 #define LSR_PE 0x04 135 #define LSR_OE 0x02 136 #define LSR_RXRDY 0x01 137 #define LSR_RCV_MASK 0x1f 138 139 /* modem status register */ 140 #define MSR_DCD 0x80 141 #define MSR_RI 0x40 142 #define MSR_DSR 0x20 143 #define MSR_CTS 0x10 144 #define MSR_DDCD 0x08 145 #define MSR_TERI 0x04 146 #define MSR_DDSR 0x02 147 #define MSR_DCTS 0x01 148 149 #ifdef hp300 150 /* WARNING: Serial console is assumed to be at SC9 */ 151 #define CONSCODE (9) 152 #endif 153 #ifdef hp700 154 /* hardwired port addresses */ 155 #define PORT1 ((struct dcadevice *)CORE_RS232_1) 156 #define PORT2 ((struct dcadevice *)CORE_RS232_2) 157 #define CONPORT PORT1 158 #endif 159 #define CONUNIT (0) 160