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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980/* SPDX-License-Identifier: GPL-2.0 *//* * Siemens SIMATIC IPC drivers * * Copyright (c) Siemens AG, 2018-2023 * * Authors: * Henning Schild <henning.schild@siemens.com> * Gerd Haeussler <gerd.haeussler.ext@siemens.com> */
#ifndef __PLATFORM_DATA_X86_SIMATIC_IPC_H#define __PLATFORM_DATA_X86_SIMATIC_IPC_H
#include <linux/dmi.h>#include <linux/platform_data/x86/simatic-ipc-base.h>
#define SIMATIC_IPC_DMI_ENTRY_OEM 129/* binary type */#define SIMATIC_IPC_DMI_TYPE 0xff#define SIMATIC_IPC_DMI_GROUP 0x05#define SIMATIC_IPC_DMI_ENTRY 0x02#define SIMATIC_IPC_DMI_TID 0x02
enum simatic_ipc_station_ids { SIMATIC_IPC_INVALID_STATION_ID = 0, SIMATIC_IPC_IPC227D = 0x00000501, SIMATIC_IPC_IPC427D = 0x00000701, SIMATIC_IPC_IPC227E = 0x00000901, SIMATIC_IPC_IPC277E = 0x00000902, SIMATIC_IPC_IPC427E = 0x00000A01, SIMATIC_IPC_IPC477E = 0x00000A02, SIMATIC_IPC_IPC127E = 0x00000D01, SIMATIC_IPC_IPC227G = 0x00000F01, SIMATIC_IPC_IPC277G = 0x00000F02, SIMATIC_IPC_IPCBX_39A = 0x00001001, SIMATIC_IPC_IPCPX_39A = 0x00001002, SIMATIC_IPC_IPCBX_21A = 0x00001101, SIMATIC_IPC_IPCBX_56A = 0x00001201, SIMATIC_IPC_IPCBX_59A = 0x00001202,};
static inline u32 simatic_ipc_get_station_id(u8 *data, int max_len){ struct { u8 type; /* type (0xff = binary) */ u8 len; /* len of data entry */ u8 group; u8 entry; u8 tid; __le32 station_id; /* station id (LE) */ } __packed * data_entry = (void *)data + sizeof(struct dmi_header);
while ((u8 *)data_entry < data + max_len) { if (data_entry->type == SIMATIC_IPC_DMI_TYPE && data_entry->len == sizeof(*data_entry) && data_entry->group == SIMATIC_IPC_DMI_GROUP && data_entry->entry == SIMATIC_IPC_DMI_ENTRY && data_entry->tid == SIMATIC_IPC_DMI_TID) { return le32_to_cpu(data_entry->station_id); } data_entry = (void *)((u8 *)(data_entry) + data_entry->len); }
return SIMATIC_IPC_INVALID_STATION_ID;}
static inline voidsimatic_ipc_find_dmi_entry_helper(const struct dmi_header *dh, void *_data){ u32 *id = _data;
if (dh->type != SIMATIC_IPC_DMI_ENTRY_OEM) return;
*id = simatic_ipc_get_station_id((u8 *)dh, dh->length);}
#endif /* __PLATFORM_DATA_X86_SIMATIC_IPC_H */