hw/ppc/pnv_bmc.c

   1 /*
   2  * QEMU PowerNV, BMC related functions
   3  *
   4  * Copyright (c) 2016-2017, IBM Corporation.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License, version 2, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #include "qemu/osdep.h"
  20 #include "hw/hw.h"
  21 #include "sysemu/sysemu.h"
  22 #include "target/ppc/cpu.h"
  23 #include "qapi/error.h"
  24 #include "qemu/log.h"
  25 #include "hw/ipmi/ipmi.h"
  26 #include "hw/ppc/fdt.h"
  27
  28 #include "hw/ppc/pnv.h"
  29
  30 #include <libfdt.h>
  31
  32 /* TODO: include definition in ipmi.h */
  33 #define IPMI_SDR_FULL_TYPE 1
  34
  35 void pnv_bmc_populate_sensors(IPMIBmc *bmc, void *fdt)
  36 {
  37     int offset;
  38     int i;
  39     const struct ipmi_sdr_compact *sdr;
  40     uint16_t nextrec;
  41
  42     offset = fdt_add_subnode(fdt, 0, "/bmc");
  43     _FDT(offset);
  44
  45     _FDT((fdt_setprop_string(fdt, offset, "name", "bmc")));
  46     _FDT((fdt_setprop_cell(fdt, offset, "#address-cells", 0x1)));
  47     _FDT((fdt_setprop_cell(fdt, offset, "#size-cells", 0x0)));
  48
  49     offset = fdt_add_subnode(fdt, offset, "sensors");
  50     _FDT(offset);
  51
  52     _FDT((fdt_setprop_cell(fdt, offset, "#address-cells", 0x1)));
  53     _FDT((fdt_setprop_cell(fdt, offset, "#size-cells", 0x0)));
  54
  55     for (i = 0; !ipmi_bmc_sdr_find(bmc, i, &sdr, &nextrec); i++) {
  56         int off;
  57         char *name;
  58
  59         if (sdr->header.rec_type != IPMI_SDR_COMPACT_TYPE &&
  60             sdr->header.rec_type != IPMI_SDR_FULL_TYPE) {
  61             continue;
  62         }
  63
  64         name = g_strdup_printf("sensor@%x", sdr->sensor_owner_number);
  65         off = fdt_add_subnode(fdt, offset, name);
  66         _FDT(off);
  67         g_free(name);
  68
  69         _FDT((fdt_setprop_cell(fdt, off, "reg", sdr->sensor_owner_number)));
  70         _FDT((fdt_setprop_string(fdt, off, "name", "sensor")));
  71         _FDT((fdt_setprop_string(fdt, off, "compatible", "ibm,ipmi-sensor")));
  72         _FDT((fdt_setprop_cell(fdt, off, "ipmi-sensor-reading-type",
  73                                sdr->reading_type)));
  74         _FDT((fdt_setprop_cell(fdt, off, "ipmi-entity-id",
  75                                sdr->entity_id)));
  76         _FDT((fdt_setprop_cell(fdt, off, "ipmi-entity-instance",
  77                                sdr->entity_instance)));
  78         _FDT((fdt_setprop_cell(fdt, off, "ipmi-sensor-type",
  79                                sdr->sensor_type)));
  80     }
  81 }