supermicro_oem.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <types.h>
 
#include <console/console.h>
#include <drivers/ipmi/ipmi_kcs.h>
#include <string.h>
#include <build.h>
#include "ipmi_supermicro_oem.h"
 
#define IPMI_NETFN_OEM 0x30
#define IPMI_LUN0_AC_SET_BIOS_VER 0x100
#define IPMI_LUN0_AC_SET_BIOS_DATE 0x101
#define IPMI_LUN0_SET_BIOS_STRING 0xac
 
struct ipmi_oem_set_bios_str {
        uint16_t ver;
        char str[16]; // NULL terminated string
} __packed;
 
static void set_coreboot_ver(const uint16_t kcs_port)
{
        const char *coreboot_ver = COREBOOT_VERSION;
        struct ipmi_oem_set_bios_str bios_ver;
        struct ipmi_rsp rsp;
        int ret;
        size_t i;
 
        /* Only 8 characters are visible in UI. Cut of on first dash */
        for (i = 0; i < 15; i++) {
                if (coreboot_ver[i] == '-')
                        break;
                bios_ver.str[i] = coreboot_ver[i];
        }
        bios_ver.str[i] = 0;
        bios_ver.ver = IPMI_LUN0_AC_SET_BIOS_VER;
 
        ret = ipmi_kcs_message(kcs_port, IPMI_NETFN_OEM, 0, IPMI_LUN0_SET_BIOS_STRING,
                               (const unsigned char *) &bios_ver, sizeof(bios_ver),
                               (unsigned char *) &rsp, sizeof(rsp));
        if (ret < sizeof(rsp) || rsp.completion_code) {
                printk(BIOS_ERR, "BMC_IPMI: %s command failed (ret=%d resp=0x%x)\n",
                       __func__, ret, rsp.completion_code);
        }
}
 
static void set_coreboot_date(const uint16_t kcs_port)
{
        struct ipmi_oem_set_bios_str bios_ver;
        struct ipmi_rsp rsp;
        int ret;
 
        strncpy(bios_ver.str, COREBOOT_DMI_DATE, 15);
        bios_ver.str[15] = 0;
        bios_ver.ver = IPMI_LUN0_AC_SET_BIOS_DATE;
 
        ret = ipmi_kcs_message(kcs_port, IPMI_NETFN_OEM, 0, IPMI_LUN0_SET_BIOS_STRING,
                               (const unsigned char *) &bios_ver, sizeof(bios_ver),
                               (unsigned char *) &rsp, sizeof(rsp));
        if (ret < sizeof(rsp) || rsp.completion_code) {
                printk(BIOS_ERR, "BMC_IPMI: %s command failed (ret=%d resp=0x%x)\n",
                       __func__, ret, rsp.completion_code);
        }
}
 
void supermicro_ipmi_oem(const uint16_t kcs_port)
{
        set_coreboot_ver(kcs_port);
        set_coreboot_date(kcs_port);
}