pccreg.h revision 1.7
1 /* $NetBSD: pccreg.h,v 1.7 2000/08/20 21:51:31 scw Exp $ */ 2 3 /* 4 * 5 * Copyright (c) 1995 Charles D. Cranor 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following 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 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Charles D. Cranor. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /* 35 * peripheral channel controller on mvme147 36 */ 37 #ifndef __MVME68K_PCCREG_H 38 #define __MVME68K_PCCREG_H 39 40 /* 41 * Offsets to the MVME147's onboard device registers. 42 * (Relative to the bus_space_tag_t passed in from 'mainbus') 43 */ 44 #define PCC_NVRAM_OFF 0x0000 /* offset of Mostek NVRAM/RTC chip */ 45 #define PCC_RTC_OFF 0x07f8 /* offset of clock registers NVRAM */ 46 #define PCC_REG_OFF 0x1000 /* offset of PCC chip registers */ 47 #define PCC_LE_OFF 0x1800 /* offset of LANCE ethernet chip */ 48 #define PCC_VME_OFF 0x2000 /* offset of VME chip */ 49 #define PCC_LPT_OFF 0x2800 /* offset of parallel port register */ 50 #define PCC_ZS0_OFF 0x3000 /* offset of first 8530 UART */ 51 #define PCC_ZS1_OFF 0x3800 /* offset of second 8530 UART */ 52 #define PCC_WDSC_OFF 0x4000 /* offset of 33c93 SCSI chip */ 53 54 /* 55 * This is needed to figure out the boot device. 56 * (The physical address of the boot device's registers are passed in 57 * from the Boot ROM) 58 */ 59 #define PCC_PADDR(off) ((void *)(0xfffe0000u + (off))) 60 61 /* 62 * The PCC chip's own registers. These are 8-bits wide, unless 63 * otherwise indicated. 64 */ 65 #define PCCREG_DMA_TABLE_ADDR 0x00 /* DMA table address (32-bit) */ 66 #define PCCREG_DMA_DATA_ADDR 0x04 /* DMA data address (32-bit) */ 67 #define PCCREG_DMA_BYTE_COUNT 0x08 /* DMA byte count (32-bit) */ 68 #define PCCREG_DMA_DATA_HOLD 0x0c /* DMA data hold register (32-bit) */ 69 #define PCCREG_TMR1_PRELOAD 0x10 /* Timer1 preload (16-bit) */ 70 #define PCCREG_TMR1_COUNT 0x12 /* Timer1 count (16-bit) */ 71 #define PCCREG_TMR2_PRELOAD 0x14 /* Timer2 preload (16-bit) */ 72 #define PCCREG_TMR2_COUNT 0x16 /* Timer2 count (16-bit) */ 73 #define PCCREG_TMR1_INTR_CTRL 0x18 /* Timer1 interrupt ctrl */ 74 #define PCCREG_TMR1_CONTROL 0x19 /* Timer1 ctrl reg */ 75 #define PCCREG_TMR2_INTR_CTRL 0x1a /* Timer2 interrupt ctrl */ 76 #define PCCREG_TMR2_CONTROL 0x1b /* Timer2 ctrl reg */ 77 #define PCCREG_ACFAIL_INTR_CTRL 0x1c /* ACFAIL intr reg */ 78 #define PCCREG_WDOG_INTR_CTRL 0x1d /* Watchdog intr reg */ 79 #define PCCREG_PRNT_INTR_CTRL 0x1e /* Printer intr reg */ 80 #define PCCREG_PRNT_CONTROL 0x1f /* Printer ctrl */ 81 #define PCCREG_DMA_INTR_CTRL 0x20 /* DMA interrupt control */ 82 #define PCCREG_DMA_CONTROL 0x21 /* DMA csr */ 83 #define PCCREG_BUSERR_INTR_CTRL 0x22 /* Bus error interrupt */ 84 #define PCCREG_DMA_STATUS 0x23 /* DMA status register */ 85 #define PCCREG_ABORT_INTR_CTRL 0x24 /* ABORT interrupt control reg */ 86 #define PCCREG_TABLE_ADDR_FC 0x25 /* Table address function code reg */ 87 #define PCCREG_SERIAL_INTR_CTRL 0x26 /* Serial interrupt reg */ 88 #define PCCREG_GENERAL_CONTROL 0x27 /* General control register */ 89 #define PCCREG_LANCE_INTR_CTRL 0x28 /* Ethernet interrupt */ 90 #define PCCREG_GENERAL_STATUS 0x29 /* General status */ 91 #define PCCREG_SCSI_INTR_CTRL 0x2a /* SCSI interrupt reg */ 92 #define PCCREG_SLAVE_BASE_ADDR 0x2b /* Slave base addr reg */ 93 #define PCCREG_SOFT1_INTR_CTRL 0x2c /* Software interrupt #1 cr */ 94 #define PCCREG_VECTOR_BASE 0x2d /* Interrupt base vector register */ 95 #define PCCREG_SOFT2_INTR_CTRL 0x2e /* Software interrupt #2 cr */ 96 #define PCCREG_REVISION 0x2f /* Revision level */ 97 98 #define PCCREG_SIZE 0x30 99 100 /* 101 * Convenience macros for reading the PCC chip's registers 102 * through bus_space. 103 */ 104 #define pcc_reg_read(sc,r) \ 105 bus_space_read_1((sc)->sc_bust, (sc)->sc_bush, (r)) 106 #define pcc_reg_read16(sc,r) \ 107 bus_space_read_2((sc)->sc_bust, (sc)->sc_bush, (r)) 108 #define pcc_reg_read32(sc,r) \ 109 bus_space_read_4((sc)->sc_bust, (sc)->sc_bush, (r)) 110 #define pcc_reg_write(sc,r,v) \ 111 bus_space_write_1((sc)->sc_bust, (sc)->sc_bush, (r), (v)) 112 #define pcc_reg_write16(sc,r,v) \ 113 bus_space_write_2((sc)->sc_bust, (sc)->sc_bush, (r), (v)) 114 #define pcc_reg_write32(sc,r,v) \ 115 bus_space_write_4((sc)->sc_bust, (sc)->sc_bush, (r), (v)) 116 117 118 /* 119 * we lock off our interrupt vector at 0x40. 120 */ 121 122 #define PCC_VECBASE 0x40 123 #define PCC_NVEC 12 124 125 /* 126 * vectors we use 127 */ 128 129 #define PCCV_ACFAIL 0 130 #define PCCV_BERR 1 131 #define PCCV_ABORT 2 132 #define PCCV_ZS 3 133 #define PCCV_LE 4 134 #define PCCV_SCSI 5 135 #define PCCV_DMA 6 136 #define PCCV_PRINTER 7 137 #define PCCV_TIMER1 8 138 #define PCCV_TIMER2 9 139 #define PCCV_SOFT1 10 140 #define PCCV_SOFT2 11 141 142 /* 143 * enable interrupt 144 */ 145 146 #define PCC_ICLEAR 0x80 147 #define PCC_IENABLE 0x08 148 149 /* 150 * interrupt mask 151 */ 152 153 #define PCC_IMASK 0x7 154 155 /* 156 * clock/timer 157 */ 158 159 #define PCC_TIMERACK 0x80 /* ack intr */ 160 #define PCC_TIMER100HZ 63936 /* load value for 100Hz */ 161 #define PCC_TIMERCLEAR 0x0 /* reset and clear timer */ 162 #define PCC_TIMERSTOP 0x1 /* stop clock, but don't clear it */ 163 #define PCC_TIMERSTART 0x3 /* start timer */ 164 165 #define pcc_timer_hz2lim(hz) (65536 - (160000/(hz))) 166 #define pcc_timer_us2lim(us) (65536 - (160000/(1000000/(us)))) 167 168 /* 169 * serial control 170 */ 171 172 #define PCC_ZSEXTERN 0x10 /* let PCC supply vector */ 173 174 /* 175 * abort switch 176 */ 177 178 #define PCC_ABORT_IEN 0x08 /* enable interrupt */ 179 #define PCC_ABORT_ABS 0x40 /* current state of switch */ 180 #define PCC_ABORT_ACK 0x80 /* interrupt active; write to ack */ 181 182 /* 183 * general control register 184 */ 185 186 #define PCC_GENCR_IEN 0x10 /* global interrupt enable */ 187 188 /* 189 * slave base address register 190 */ 191 #define PCC_SLAVE_BASE_MASK (0x01fu) 192 193 #endif /* __MVME68K_PCCREG_H */ 194
Indexes created Tue Sep 30 10:09:55 GMT 2025