/* $NetBSD: psc.h,v 1.7 2005/12/11 12:18:03 christos Exp $ */ /*- * Copyright (c) 1997 David Huang * 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, this list of conditions and the following disclaimer. * 2. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. * */ /* * Some register definitions for the PSC, present only on the * Centris/Quadra 660av and the Quadra 840av. */ extern volatile u_int8_t *PSCBase; #define psc_reg1(r) (*((volatile u_int8_t *)(PSCBase+r))) #define psc_reg2(r) (*((volatile u_int16_t *)(PSCBase+r))) #define psc_reg4(r) (*((volatile u_int32_t *)(PSCBase+r))) void psc_init(void); int add_psc_lev3_intr(void (*)(void *), void *); int add_psc_lev4_intr(int, int (*)(void *), void *); int add_psc_lev5_intr(int, void (*)(void *), void *); int add_psc_lev6_intr(int, void (*)(void *), void *); int remove_psc_lev3_intr(void); int remove_psc_lev4_intr(int); int remove_psc_lev5_intr(int); int remove_psc_lev6_intr(int); /* * Reading an interrupt status register returns a mask of the * currently interrupting devices (one bit per device). Reading an * interrupt enable register returns a mask of the currently enabled * devices. Writing an interrupt enable register with the MSB set * enables the interrupts in the lower 4 bits, while writing with the * MSB clear disables the corresponding interrupts. * e.g. write 0x81 to enable device 0, write 0x86 to enable devices 1 * and 2, write 0x02 to disable device 1. * * Level 3 device 0 is MACE * Level 4 device 0 is 3210 DSP? * Level 4 device 1 is SCC channel A (modem port) * Level 4 device 2 is SCC channel B (printer port) * Level 4 device 3 is MACE DMA completion * Level 5 device 0 is 3210 DSP? * Level 5 device 1 is 3210 DSP? * Level 6 device 0 is ? * Level 6 device 1 is ? * Level 6 device 2 is ? */ /* PSC interrupt registers */ #define PSC_ISR_BASE 0x100 /* ISR is BASE + 0x10 * level */ #define PSC_IER_BASE 0x104 /* IER is BASE + 0x10 * level */ #define PSC_LEV3_ISR 0x130 /* level 3 interrupt status register */ #define PSC_LEV3_IER 0x134 /* level 3 interrupt enable register */ #define PSCINTR_ENET 0 /* Ethernet interrupt */ #define PSC_LEV4_ISR 0x140 /* level 4 interrupt status register */ #define PSC_LEV4_IER 0x144 /* level 4 interrupt enable register */ #define PSCINTR_SCCA 1 /* SCC channel A interrupt */ #define PSCINTR_SCCB 2 /* SCC channel B interrupt */ #define PSCINTR_ENET_DMA 3 /* Ethernet DMA completion interrupt */ #define PSC_LEV5_ISR 0x150 /* level 5 interrupt status register */ #define PSC_LEV5_IER 0x154 /* level 5 interrupt enable register */ #define PSC_LEV6_ISR 0x160 /* level 6 interrupt status register */ #define PSC_LEV6_IER 0x164 /* level 6 interrupt enable register */ /* PSC DMA channel control registers */ #define PSC_CTLBASE 0xc00 #define PSC_SCSI_CTL 0xc00 /* SCSI control/status */ #define PSC_ENETRD_CTL 0xc10 /* MACE receive DMA channel control/status */ #define PSC_ENETWR_CTL 0xc20 /* MACE transmit DMA channel control/status */ #define PSC_FDC_CTL 0xc30 /* Floppy disk */ #define PSC_SCCA_CTL 0xc40 /* SCC channel A */ #define PSC_SCCB_CTL 0xc50 /* SCC channel B */ #define PSC_SCCATX_CTL 0xc60 /* SCC channel A transmit */ /* PSC DMA channels */ #define PSC_ADDRBASE 0x1000 #define PSC_LENBASE 0x1004 #define PSC_CMDBASE 0x1008 #define PSC_SCSI_ADDR 0x1000 /* SCSI DMA address register */ #define PSC_SCSI_LEN 0x1004 /* SCSI DMA buffer count */ #define PSC_SCSI_CMD 0x1008 /* SCSI DMA command register */ #define PSC_ENETRD_ADDR 0x1020 /* MACE receive DMA address register */ #define PSC_ENETRD_LEN 0x1024 /* MACE receive DMA buffer count */ #define PSC_ENETRD_CMD 0x1028 /* MACE receive DMA command register */ #define PSC_ENETWR_ADDR 0x1040 /* MACE transmit DMA address register */ #define PSC_ENETWR_LEN 0x1044 /* MACE transmit DMA length */ #define PSC_ENETWR_CMD 0x1048 /* MACE transmit DMA command register */ /* * PSC DMA channels are controlled by two sets of registers (see p.29 * of the Quadra 840av and Centris 660av Developer Note). Add the * following offsets to get the desired register set. */ #define PSC_SET0 0x00 #define PSC_SET1 0x10