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/*
* QEMU PowerNV, BMC related functions
*
* Copyright (c) 2016-2017, IBM Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2, as
* published by the Free Software Foundation.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "qemu/osdep.h"
#include "hw/hw.h"
#include "sysemu/sysemu.h"
#include "target/ppc/cpu.h"
#include "qapi/error.h"
#include "qemu/log.h"
#include "hw/ipmi/ipmi.h"
#include "hw/ppc/fdt.h"
#include "hw/ppc/pnv.h"
#include <libfdt.h>
/* TODO: include definition in ipmi.h */
#define IPMI_SDR_FULL_TYPE 1
/*
* OEM SEL Event data packet sent by BMC in response of a Read Event
* Message Buffer command
*/
typedef struct OemSel {
/* SEL header */
uint8_t id[2];
uint8_t type;
uint8_t timestamp[4];
uint8_t manuf_id[3];
/* OEM SEL data (6 bytes) follows */
uint8_t netfun;
uint8_t cmd;
uint8_t data[4];
} OemSel;
#define SOFT_OFF 0x00
#define SOFT_REBOOT 0x01
static void pnv_gen_oem_sel(IPMIBmc *bmc, uint8_t reboot)
{
/* IPMI SEL Event are 16 bytes long */
OemSel sel = {
.id = { 0x55 , 0x55 },
.type = 0xC0, /* OEM */
.manuf_id = { 0x0, 0x0, 0x0 },
.timestamp = { 0x0, 0x0, 0x0, 0x0 },
.netfun = 0x3A, /* IBM */
.cmd = 0x04, /* AMI OEM SEL Power Notification */
.data = { reboot, 0xFF, 0xFF, 0xFF },
};
ipmi_bmc_gen_event(bmc, (uint8_t *) &sel, 0 /* do not log the event */);
}
void pnv_bmc_powerdown(IPMIBmc *bmc)
{
pnv_gen_oem_sel(bmc, SOFT_OFF);
}
void pnv_dt_bmc_sensors(IPMIBmc *bmc, void *fdt)
{
int offset;
int i;
const struct ipmi_sdr_compact *sdr;
uint16_t nextrec;
offset = fdt_add_subnode(fdt, 0, "/bmc");
_FDT(offset);
_FDT((fdt_setprop_string(fdt, offset, "name", "bmc")));
_FDT((fdt_setprop_cell(fdt, offset, "#address-cells", 0x1)));
_FDT((fdt_setprop_cell(fdt, offset, "#size-cells", 0x0)));
offset = fdt_add_subnode(fdt, offset, "sensors");
_FDT(offset);
_FDT((fdt_setprop_cell(fdt, offset, "#address-cells", 0x1)));
_FDT((fdt_setprop_cell(fdt, offset, "#size-cells", 0x0)));
for (i = 0; !ipmi_bmc_sdr_find(bmc, i, &sdr, &nextrec); i++) {
int off;
char *name;
if (sdr->header.rec_type != IPMI_SDR_COMPACT_TYPE &&
sdr->header.rec_type != IPMI_SDR_FULL_TYPE) {
continue;
}
name = g_strdup_printf("sensor@%x", sdr->sensor_owner_number);
off = fdt_add_subnode(fdt, offset, name);
_FDT(off);
g_free(name);
_FDT((fdt_setprop_cell(fdt, off, "reg", sdr->sensor_owner_number)));
_FDT((fdt_setprop_string(fdt, off, "name", "sensor")));
_FDT((fdt_setprop_string(fdt, off, "compatible", "ibm,ipmi-sensor")));
_FDT((fdt_setprop_cell(fdt, off, "ipmi-sensor-reading-type",
sdr->reading_type)));
_FDT((fdt_setprop_cell(fdt, off, "ipmi-entity-id",
sdr->entity_id)));
_FDT((fdt_setprop_cell(fdt, off, "ipmi-entity-instance",
sdr->entity_instance)));
_FDT((fdt_setprop_cell(fdt, off, "ipmi-sensor-type",
sdr->sensor_type)));
}
}
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