174 lines
5.6 KiB
C
174 lines
5.6 KiB
C
/* $NetBSD: iopreg.h,v 1.4 2000/07/30 21:48:54 briggs Exp $ */
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/*
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* Copyright (c) 2000 Allen Briggs.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#define IOP1_BASE 0x00004000
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#define SCC_IOP 0
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#define ISM_IOP 1
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#define IOP_CS_BYPASS 0x01
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#define IOP_CS_AUTOINC 0x02
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#define IOP_CS_RUN 0x04
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#define IOP_CS_IRQ 0x08
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#define IOP_CS_INT0 0x10
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#define IOP_CS_INT1 0x20
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#define IOP_CS_HWINT 0x40
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#define IOP_CS_DMAINACT 0x80
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#define IOP_RESET (IOP_CS_DMAINACT | IOP_CS_AUTOINC)
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#define IOP_BYPASS \
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(IOP_CS_BYPASS | IOP_CS_AUTOINC | IOP_CS_RUN | IOP_CS_DMAINACT)
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#define IOP_INTERRUPT (IOP_CS_INT0 | IOP_CS_INT1)
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#define OSS_INTLEVEL_OFFSET 0x0001A006
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typedef struct {
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volatile u_char ram_hi;
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u_char pad0;
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volatile u_char ram_lo;
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u_char pad1;
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volatile u_char control_status;
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u_char pad2[3];
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volatile u_char data;
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u_char pad3[23];
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union {
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struct {
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volatile u_char sccb_cmd;
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u_char pad0;
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volatile u_char scca_cmd;
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u_char pad1;
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volatile u_char sccb_data;
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u_char pad2;
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volatile u_char scca_data;
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u_char pad3;
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} scc;
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struct {
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volatile u_char wdata;
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u_char pad0;
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/* etc... */
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} iwm;
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} bypass;
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} IOPHW;
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#define IOP_MAXCHAN 7
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#define IOP_MAXMSG 8
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#define IOP_MSGLEN 32
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#define IOP_MSGBUFLEN (IOP_MSGLEN * IOP_MAXCHAN)
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#define IOP_MSG_IDLE 0 /* idle */
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#define IOP_MSG_NEW 1 /* new message sent */
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#define IOP_MSG_RECEIVED 2 /* message received; processing */
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#define IOP_MSG_COMPLETE 3 /* message processing complete */
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#define IOP_ADDR_MAX_SEND_CHAN 0x200
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#define IOP_ADDR_SEND_STATE 0x201
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#define IOP_ADDR_PATCH_CTRL 0x21F
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#define IOP_ADDR_SEND_MSG 0x220
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#define IOP_ADDR_MAX_RECV_CHAN 0x300
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#define IOP_ADDR_RECV_STATE 0x301
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#define IOP_ADDR_ALIVE 0x31F
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#define IOP_ADDR_RECV_MSG 0x320
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typedef struct {
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u_char pad1[0x200];
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u_char max_send_chan; /* maximum send channel # */
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u_char send_state[IOP_MAXCHAN]; /* send channel states */
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u_char pad2[23];
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u_char patch_ctrl; /* patch control flag */
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u_char send_msg[IOP_MSGBUFLEN]; /* send channel message data */
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u_char max_recv_chan; /* max. receive channel # */
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u_char recv_state[IOP_MAXCHAN]; /* receive channel states */
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u_char pad3[23];
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u_char alive; /* IOP alive flag */
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u_char recv_msg[IOP_MSGBUFLEN]; /* receive channel msg data */
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} IOPK;
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struct iop_msg;
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struct _s_IOP;
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typedef void (*iop_msg_handler)(struct _s_IOP *iop, struct iop_msg *);
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struct iop_msg {
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SIMPLEQ_ENTRY(iop_msg) iopm;
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int channel;
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int status;
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u_char msg[IOP_MSGLEN];
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/* The routine that will handle the message */
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iop_msg_handler handler;
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void *user_data;
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};
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#define IOP_MSGSTAT_IDLE 0 /* Message unused (invalid) */
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#define IOP_MSGSTAT_QUEUED 1 /* Message queued for send */
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#define IOP_MSGSTAT_SENDING 2 /* Message on IOP */
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#define IOP_MSGSTAT_SENT 3 /* Message complete */
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#define IOP_MSGSTAT_RECEIVING 4 /* Top of receive queue */
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#define IOP_MSGSTAT_RECEIVED 5 /* Msg received */
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#define IOP_MSGSTAT_UNEXPECTED 6 /* Unexpected msg received */
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typedef struct _s_IOP {
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IOPHW *iop;
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struct pool pool;
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SIMPLEQ_HEAD(, iop_msg) sendq[IOP_MAXCHAN];
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SIMPLEQ_HEAD(, iop_msg) recvq[IOP_MAXCHAN];
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iop_msg_handler listeners[IOP_MAXCHAN];
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void *listener_data[IOP_MAXCHAN];
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struct iop_msg unsolicited_msg;
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} IOP;
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#define IOP_LOADADDR(ioph,addr) (ioph->ram_lo = addr & 0xff, \
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ioph->ram_hi = (addr >> 8) & 0xff)
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void iop_init __P((int fullinit));
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void iop_upload __P((int iop, u_char *mem, u_long nb, u_long iopbase));
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void iop_download __P((int iop, u_char *mem, u_long nb, u_long iopbase));
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int iop_send_msg __P((int iopn, int chan, u_char *msg, int msglen,
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iop_msg_handler handler, void *udata));
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int iop_queue_receipt __P((int iopn, int chan, iop_msg_handler handler,
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void *user_data));
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int iop_register_listener __P((int iopn, int chan, iop_msg_handler handler,
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void *user_data));
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/* ADB support */
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#define IOP_CHAN_ADB 2
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#define IOP_ADB_FL_EXPLICIT 0x80 /* Non-zero if explicit command */
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#define IOP_ADB_FL_AUTOPOLL 0x40 /* Auto/SRQ polling enabled */
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#define IOP_ADB_FL_SRQ 0x04 /* SRQ detected */
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#define IOP_ADB_FL_TIMEOUT 0x02 /* Non-zero if timeout */
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/*
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* The structure of an ADB packet to/from the IOP is:
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* Flag byte (values above)
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* Count of bytes in data
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* Command byte
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* Data (optional)
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*/
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