GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
coreboot-kgpe-d16/src/drivers/ipmi/ipmi_kcs.c

233 lines
5.0 KiB
C
Raw Normal View History

Add basic ipmi support Implements support code for talking to IPMI hardware that uses a KCS style interface. Change-Id: I9895cc1bf29676115b167081b63b8a430e23eee5 Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-on: http://review.coreboot.org/1190 Tested-by: build bot (Jenkins)
2012-07-08 18:32:23 +02:00
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2012 Sven Schnelle <svens@stackframe.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; version 2 of
* the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <console/console.h>
#include <device/device.h>
#include <arch/io.h>
#include <delay.h>
#include "ipmi_kcs.h"
#define IPMI_KCS_STATE(_x) ((_x) >> 6)
#define IPMI_KCS_GET_STATUS_ABORT
#define IPMI_KCS_START_WRITE 0x61
#define IPMI_KCS_END_WRITE 0x62
#define IPMI_KCS_READ_BYTE 0x68
#define IPMI_KCS_OBF 0x01
#define IPMI_KCS_IBF 0x02
#define IPMI_KCS_ATN 0x04
#define IPMI_KCS_STATE_IDLE 0x00
#define IPMI_KCS_STATE_READ 0x01
#define IPMI_KCS_STATE_WRITE 0x02
#define IPMI_KCS_STATE_ERROR 0x03
#define IPMI_CMD(_x) ((_x) + 1)
#define IPMI_DATA(_x) ((_x))
#define IPMI_STAT(_x) ((_x) + 1)
static unsigned char ipmi_kcs_status(int port)
{
unsigned char status = inb(IPMI_STAT(port));
printk(BIOS_DEBUG, "%s: 0x%02x\n", __func__, status);
return status;
}
static int wait_ibf_timeout(int port)
{
int timeout = 1000;
do {
if (!(ipmi_kcs_status(port) & IPMI_KCS_IBF))
return 0;
udelay(100);
src/drivers: Add required space before opening parenthesis '(' Change-Id: I4d0087b2557862d04be54cf42f01b3223cb723ac Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/16321 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-08-25 20:50:50 +02:00
} while (timeout--);
Add basic ipmi support Implements support code for talking to IPMI hardware that uses a KCS style interface. Change-Id: I9895cc1bf29676115b167081b63b8a430e23eee5 Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-on: http://review.coreboot.org/1190 Tested-by: build bot (Jenkins)
2012-07-08 18:32:23 +02:00
printk(BIOS_ERR, "wait_ibf timeout!\n");
return timeout;
}
static int wait_obf_timeout(int port)
{
int timeout = 1000;
do {
if ((ipmi_kcs_status(port) & IPMI_KCS_OBF))
return 0;
udelay(100);
src/drivers: Add required space before opening parenthesis '(' Change-Id: I4d0087b2557862d04be54cf42f01b3223cb723ac Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/16321 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-08-25 20:50:50 +02:00
} while (timeout--);
Add basic ipmi support Implements support code for talking to IPMI hardware that uses a KCS style interface. Change-Id: I9895cc1bf29676115b167081b63b8a430e23eee5 Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-on: http://review.coreboot.org/1190 Tested-by: build bot (Jenkins)
2012-07-08 18:32:23 +02:00
printk(BIOS_ERR, "wait_obf timeout!\n");
return timeout;
}
static int ipmi_kcs_send_data_byte(int port, const unsigned char byte)
{
unsigned char status;
printk(BIOS_DEBUG, "%s: %02x\n", __func__, byte);
outb(byte, IPMI_DATA(port));
if (wait_ibf_timeout(port))
return 1;
src/drivers: Fix checkpatch warning: no spaces at the start of a line This excludes files which are mostly spaces, which I felt should be handled separately. Change-Id: I33043a3090e2fc6e9d2fd81e8a5e46fb6cb0aa35 Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/20731 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
2017-07-24 04:00:04 +02:00
status = ipmi_kcs_status(port);
Add basic ipmi support Implements support code for talking to IPMI hardware that uses a KCS style interface. Change-Id: I9895cc1bf29676115b167081b63b8a430e23eee5 Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-on: http://review.coreboot.org/1190 Tested-by: build bot (Jenkins)
2012-07-08 18:32:23 +02:00
if ((status & IPMI_KCS_OBF) &&
IPMI_KCS_STATE(status) != IPMI_KCS_STATE_WRITE) {
printk(BIOS_ERR, "%s: status %02x\n", __func__, status);
return 1;
}
if (ipmi_kcs_status(port) & IPMI_KCS_OBF)
inb(IPMI_DATA(port));
return 0;
}
static int ipmi_kcs_send_last_data_byte(int port, const unsigned char byte)
{
unsigned char status;
printk(BIOS_DEBUG, "%s: %02x\n", __func__, byte);
if (wait_ibf_timeout(port))
return 1;
src/drivers: Fix checkpatch warning: no spaces at the start of a line This excludes files which are mostly spaces, which I felt should be handled separately. Change-Id: I33043a3090e2fc6e9d2fd81e8a5e46fb6cb0aa35 Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/20731 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
2017-07-24 04:00:04 +02:00
status = ipmi_kcs_status(port);
Add basic ipmi support Implements support code for talking to IPMI hardware that uses a KCS style interface. Change-Id: I9895cc1bf29676115b167081b63b8a430e23eee5 Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-on: http://review.coreboot.org/1190 Tested-by: build bot (Jenkins)
2012-07-08 18:32:23 +02:00
if ((status & IPMI_KCS_OBF) &&
IPMI_KCS_STATE(status) != IPMI_KCS_STATE_WRITE) {
printk(BIOS_ERR, "%s: status %02x\n", __func__, status);
return 1;
}
if (ipmi_kcs_status(port) & IPMI_KCS_OBF)
inb(IPMI_DATA(port));
outb(byte, IPMI_DATA(port));
return 0;
}
static int ipmi_kcs_send_cmd_byte(int port, const unsigned char byte)
{
printk(BIOS_DEBUG, "%s: 0x%02x\n", __func__, byte);
if (wait_ibf_timeout(port))
return 1;
if (ipmi_kcs_status(port) & IPMI_KCS_OBF)
inb(IPMI_DATA(port));
outb(byte, IPMI_CMD(port));
if (wait_ibf_timeout(port))
return 1;
if (ipmi_kcs_status(port) & IPMI_KCS_OBF)
inb(IPMI_DATA(port));
return 0;
}
static int ipmi_kcs_send_message(int port, int netfn, int lun, int cmd,
const unsigned char *msg, int len)
{
int ret;
drivers/ipmi: Fix coding style Fix 'do not use assignment in if condition'. Change-Id: I6e1b81a1b87de4315391618968c59cc3d3a66a77 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33492 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2019-06-15 12:25:53 +02:00
ret = ipmi_kcs_send_cmd_byte(port, IPMI_KCS_START_WRITE);
if (ret) {
Add basic ipmi support Implements support code for talking to IPMI hardware that uses a KCS style interface. Change-Id: I9895cc1bf29676115b167081b63b8a430e23eee5 Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-on: http://review.coreboot.org/1190 Tested-by: build bot (Jenkins)
2012-07-08 18:32:23 +02:00
printk(BIOS_ERR, "IPMI START WRITE failed\n");
return ret;
}
drivers/ipmi: Fix coding style Fix 'do not use assignment in if condition'. Change-Id: I6e1b81a1b87de4315391618968c59cc3d3a66a77 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33492 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2019-06-15 12:25:53 +02:00
ret = ipmi_kcs_send_data_byte(port, (netfn << 2) | (lun & 3));
if (ret) {
Add basic ipmi support Implements support code for talking to IPMI hardware that uses a KCS style interface. Change-Id: I9895cc1bf29676115b167081b63b8a430e23eee5 Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-on: http://review.coreboot.org/1190 Tested-by: build bot (Jenkins)
2012-07-08 18:32:23 +02:00
printk(BIOS_ERR, "IPMI NETFN failed\n");
return ret;
}
drivers/ipmi: Fix coding style Fix 'do not use assignment in if condition'. Change-Id: I6e1b81a1b87de4315391618968c59cc3d3a66a77 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33492 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2019-06-15 12:25:53 +02:00
ret = ipmi_kcs_send_data_byte(port, cmd);
if (ret) {
Add basic ipmi support Implements support code for talking to IPMI hardware that uses a KCS style interface. Change-Id: I9895cc1bf29676115b167081b63b8a430e23eee5 Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-on: http://review.coreboot.org/1190 Tested-by: build bot (Jenkins)
2012-07-08 18:32:23 +02:00
printk(BIOS_ERR, "IPMI CMD failed\n");
return ret;
}
src/drivers: Add required space before opening parenthesis '(' Change-Id: I4d0087b2557862d04be54cf42f01b3223cb723ac Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/16321 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-08-25 20:50:50 +02:00
while (len-- > 1) {
drivers/ipmi: Fix coding style Fix 'do not use assignment in if condition'. Change-Id: I6e1b81a1b87de4315391618968c59cc3d3a66a77 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33492 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2019-06-15 12:25:53 +02:00
ret = ipmi_kcs_send_data_byte(port, *msg++);
if (ret) {
Add basic ipmi support Implements support code for talking to IPMI hardware that uses a KCS style interface. Change-Id: I9895cc1bf29676115b167081b63b8a430e23eee5 Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-on: http://review.coreboot.org/1190 Tested-by: build bot (Jenkins)
2012-07-08 18:32:23 +02:00
printk(BIOS_ERR, "IPMI BYTE WRITE failed\n");
return ret;
}
}
drivers/ipmi: Fix coding style Fix 'do not use assignment in if condition'. Change-Id: I6e1b81a1b87de4315391618968c59cc3d3a66a77 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33492 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2019-06-15 12:25:53 +02:00
ret = ipmi_kcs_send_cmd_byte(port, IPMI_KCS_END_WRITE);
if (ret) {
Add basic ipmi support Implements support code for talking to IPMI hardware that uses a KCS style interface. Change-Id: I9895cc1bf29676115b167081b63b8a430e23eee5 Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-on: http://review.coreboot.org/1190 Tested-by: build bot (Jenkins)
2012-07-08 18:32:23 +02:00
printk(BIOS_ERR, "IPMI END WRITE failed\n");
return ret;
}
drivers/ipmi: Fix coding style Fix 'do not use assignment in if condition'. Change-Id: I6e1b81a1b87de4315391618968c59cc3d3a66a77 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33492 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2019-06-15 12:25:53 +02:00
ret = ipmi_kcs_send_last_data_byte(port, *msg++);
if (ret) {
Add basic ipmi support Implements support code for talking to IPMI hardware that uses a KCS style interface. Change-Id: I9895cc1bf29676115b167081b63b8a430e23eee5 Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-on: http://review.coreboot.org/1190 Tested-by: build bot (Jenkins)
2012-07-08 18:32:23 +02:00
printk(BIOS_ERR, "IPMI BYTE WRITE failed\n");
return ret;
}
return 0;
}
static int ipmi_kcs_read_message(int port, unsigned char *msg, int len)
{
int status, ret = 0;
if (!msg)
return 0;
if (wait_ibf_timeout(port))
return 1;
src/drivers: Add required space before opening parenthesis '(' Change-Id: I4d0087b2557862d04be54cf42f01b3223cb723ac Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/16321 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-08-25 20:50:50 +02:00
for (;;) {
Add basic ipmi support Implements support code for talking to IPMI hardware that uses a KCS style interface. Change-Id: I9895cc1bf29676115b167081b63b8a430e23eee5 Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-on: http://review.coreboot.org/1190 Tested-by: build bot (Jenkins)
2012-07-08 18:32:23 +02:00
status = ipmi_kcs_status(port);
if (IPMI_KCS_STATE(status) == IPMI_KCS_STATE_IDLE)
return ret;
if (IPMI_KCS_STATE(status) != IPMI_KCS_STATE_READ) {
printk(BIOS_ERR, "%s: wrong state: 0x%02x\n", __func__, status);
return -1;
}
if (wait_obf_timeout(port))
return -1;
*msg++ = inb(IPMI_DATA(port));
ret++;
if (wait_ibf_timeout(port))
return -1;
outb(IPMI_KCS_READ_BYTE, IPMI_DATA(port));
}
return ret;
}
int ipmi_kcs_message(int port, int netfn, int lun, int cmd,
const unsigned char *inmsg, int inlen,
unsigned char *outmsg, int outlen)
{
if (ipmi_kcs_send_message(port, netfn, lun, cmd, inmsg, inlen)) {
printk(BIOS_ERR, "ipmi_kcs_send_message failed\n");
return -1;
}
return ipmi_kcs_read_message(port, outmsg, outlen);
}