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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2000 by Sun Microsystems, Inc.
* All rights reserved.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/promif.h>
#include <sys/promimpl.h>
/*
* This file contains the implementations of all Starcat-specific promif
* routines. Refer to FWARC case 2000/420 for the definitions of the
* platform-specific interfaces provided by Starcat OBP.
*/
static char *switch_tunnel_cmd = "SUNW,Starcat,switch-tunnel";
static char *iosram_read_cmd = "SUNW,Starcat,iosram-read";
static char *iosram_write_cmd = "SUNW,Starcat,iosram-write";
/*
* Given the portid of the IOB to which the tunnel should be moved and the type
* of move that should be performed, ask OBP to switch the IOSRAM tunnel from
* its current host IOB to a new location. If the move type is 0, OBP will
* coordinate the change with SMS and will copy data from the current location
* to the new location. If the move type is 1, OBP will simply mark the new
* location valid and start using it, without doing any data copying and without
* communicating with SMS. Return 0 on success, non-zero on failure.
*/
int
prom_starcat_switch_tunnel(uint_t portid, uint_t msgtype)
{
static uint8_t warned = 0;
cell_t ci[6];
int rv;
/*
* Make sure we have the necessary support in OBP.
*/
if (prom_test(switch_tunnel_cmd) == 0) {
ci[0] = p1275_ptr2cell(switch_tunnel_cmd); /* name */
} else {
if (!warned) {
warned = 1;
prom_printf(
"Warning: No prom support for switch-tunnel!\n");
}
return (-1);
}
/*
* Set up the arguments and call into OBP.
*/
ci[1] = (cell_t)2; /* #argument cells */
ci[2] = (cell_t)1; /* #result cells */
ci[3] = p1275_uint2cell(portid);
ci[4] = p1275_uint2cell(msgtype);
promif_preprom();
rv = p1275_cif_handler(&ci);
promif_postprom();
/*
* p1275_cif_handler will return 0 on success, non-zero on failure. If
* it fails, the return cell from OBP is meaningless, because the OBP
* client interface probably wasn't even invoked. OBP will return 0 on
* failure and non-zero on success for this interface.
*/
if (rv != 0) {
return (rv);
} else if (p1275_cell2int(ci[5]) == 0) {
return (-1);
} else {
return (0);
}
}
/*
* Request that OBP read 'len' bytes, starting at 'offset' in the IOSRAM chunk
* associated with 'key', into the memory indicated by 'buf'. Although there is
* a driver that provides this functionality, there are certain cases where the
* OS requires access to IOSRAM before the driver is loaded. Return 0 on
* success, non-zero on failure.
*/
int
prom_starcat_iosram_read(uint32_t key, uint32_t offset, uint32_t len,
caddr_t buf)
{
static uint8_t warned = 0;
cell_t ci[8];
int rv;
/*
* Make sure we have the necessary support in OBP.
*/
if (prom_test(iosram_read_cmd) == 0) {
ci[0] = p1275_ptr2cell(iosram_read_cmd); /* name */
} else {
if (!warned) {
warned = 1;
prom_printf(
"Warning: No prom support for iosram-read!\n");
}
return (-1);
}
/*
* Set up the arguments and call into OBP. Note that the argument order
* needs to be reversed to accomodate OBP. The order must remain as it
* is in the function prototype to maintain intercompatibility with the
* IOSRAM driver's equivalent routine.
*/
ci[1] = (cell_t)4; /* #argument cells */
ci[2] = (cell_t)1; /* #result cells */
ci[3] = p1275_ptr2cell(buf);
ci[4] = p1275_uint2cell(len);
ci[5] = p1275_uint2cell(offset);
ci[6] = p1275_uint2cell(key);
promif_preprom();
rv = p1275_cif_handler(&ci);
promif_postprom();
/*
* p1275_cif_handler will return 0 on success, non-zero on failure. If
* it fails, the return cell from OBP is meaningless, because the OBP
* client interface probably wasn't even invoked. OBP will return 0 on
* success and non-zero on failure for this interface.
*/
if (rv != 0) {
return (rv);
} else if (p1275_cell2int(ci[7]) == 0) {
return (0);
} else {
return (-1);
}
}
/*
* Request that OBP write 'len' bytes from the memory indicated by 'buf' into
* the IOSRAM chunk associated with 'key', starting at 'offset'. Although there
* is a driver that provides this functionality, there are certain cases where
* the OS requires access to IOSRAM before the driver is loaded. Return 0 on
* success, non-zero on failure.
*/
int
prom_starcat_iosram_write(uint32_t key, uint32_t offset, uint32_t len,
caddr_t buf)
{
static uint8_t warned = 0;
cell_t ci[8];
int rv;
/*
* Make sure we have the necessary support in OBP.
*/
if (prom_test(iosram_write_cmd) == 0) {
ci[0] = p1275_ptr2cell(iosram_write_cmd); /* name */
} else {
if (!warned) {
warned = 1;
prom_printf(
"Warning: No prom support for iosram-write!\n");
}
return (-1);
}
/*
* Set up the arguments and call into OBP. Note that the argument order
* needs to be reversed to accomodate OBP. The order must remain as it
* is in the function prototype to maintain intercompatibility with the
* IOSRAM driver's equivalent routine.
*/
ci[1] = (cell_t)4; /* #argument cells */
ci[2] = (cell_t)1; /* #result cells */
ci[3] = p1275_ptr2cell(buf);
ci[4] = p1275_uint2cell(len);
ci[5] = p1275_uint2cell(offset);
ci[6] = p1275_uint2cell(key);
promif_preprom();
rv = p1275_cif_handler(&ci);
promif_postprom();
/*
* p1275_cif_handler will return 0 on success, non-zero on failure. If
* it fails, the return cell from OBP is meaningless, because the OBP
* client interface probably wasn't even invoked. OBP will return 0 on
* success and non-zero on failure for this interface.
*/
if (rv != 0) {
return (rv);
} else if (p1275_cell2int(ci[7]) == 0) {
return (0);
} else {
return (-1);
}
}
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