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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * dcdbas.h: Definitions for Dell Systems Management Base driver4 *5 * Copyright (C) 1995-2005 Dell Inc.6 */7 8#ifndef _DCDBAS_H_9#define _DCDBAS_H_10 11#include <linux/device.h>12#include <linux/sysfs.h>13#include <linux/types.h>14 15#define MAX_SMI_DATA_BUF_SIZE (256 * 1024)16 17#define HC_ACTION_NONE (0)18#define HC_ACTION_HOST_CONTROL_POWEROFF BIT(1)19#define HC_ACTION_HOST_CONTROL_POWERCYCLE BIT(2)20 21#define HC_SMITYPE_NONE (0)22#define HC_SMITYPE_TYPE1 (1)23#define HC_SMITYPE_TYPE2 (2)24#define HC_SMITYPE_TYPE3 (3)25 26#define ESM_APM_CMD (0x0A0)27#define ESM_APM_POWER_CYCLE (0x10)28#define ESM_STATUS_CMD_UNSUCCESSFUL (-1)29 30#define CMOS_BASE_PORT (0x070)31#define CMOS_PAGE1_INDEX_PORT (0)32#define CMOS_PAGE1_DATA_PORT (1)33#define CMOS_PAGE2_INDEX_PORT_PIIX4 (2)34#define CMOS_PAGE2_DATA_PORT_PIIX4 (3)35#define PE1400_APM_CONTROL_PORT (0x0B0)36#define PCAT_APM_CONTROL_PORT (0x0B2)37#define PCAT_APM_STATUS_PORT (0x0B3)38#define PE1300_CMOS_CMD_STRUCT_PTR (0x38)39#define PE1400_CMOS_CMD_STRUCT_PTR (0x70)40 41#define MAX_SYSMGMT_SHORTCMD_PARMBUF_LEN (14)42#define MAX_SYSMGMT_LONGCMD_SGENTRY_NUM (16)43 44#define TIMEOUT_USEC_SHORT_SEMA_BLOCKING (10000)45#define EXPIRED_TIMER (0)46 47#define SMI_CMD_MAGIC (0x534D4931)48#define SMM_EPS_SIG "$SCB"49 50#define DCDBAS_DEV_ATTR_RW(_name) \51 DEVICE_ATTR(_name,0600,_name##_show,_name##_store);52 53#define DCDBAS_DEV_ATTR_RO(_name) \54 DEVICE_ATTR(_name,0400,_name##_show,NULL);55 56#define DCDBAS_DEV_ATTR_WO(_name) \57 DEVICE_ATTR(_name,0200,NULL,_name##_store);58 59#define DCDBAS_BIN_ATTR_RW(_name) \60struct bin_attribute bin_attr_##_name = { \61 .attr = { .name = __stringify(_name), \62 .mode = 0600 }, \63 .read = _name##_read, \64 .write = _name##_write, \65}66 67struct smi_cmd {68 __u32 magic;69 __u32 ebx;70 __u32 ecx;71 __u16 command_address;72 __u8 command_code;73 __u8 reserved;74 __u8 command_buffer[1];75} __attribute__ ((packed));76 77struct apm_cmd {78 __u8 command;79 __s8 status;80 __u16 reserved;81 union {82 struct {83 __u8 parm[MAX_SYSMGMT_SHORTCMD_PARMBUF_LEN];84 } __attribute__ ((packed)) shortreq;85 86 struct {87 __u16 num_sg_entries;88 struct {89 __u32 size;90 __u64 addr;91 } __attribute__ ((packed))92 sglist[MAX_SYSMGMT_LONGCMD_SGENTRY_NUM];93 } __attribute__ ((packed)) longreq;94 } __attribute__ ((packed)) parameters;95} __attribute__ ((packed));96 97int dcdbas_smi_request(struct smi_cmd *smi_cmd);98 99struct smm_eps_table {100 char smm_comm_buff_anchor[4];101 u8 length;102 u8 checksum;103 u8 version;104 u64 smm_comm_buff_addr;105 u64 num_of_4k_pages;106} __packed;107 108struct smi_buffer {109 u8 *virt;110 unsigned long size;111 dma_addr_t dma;112};113 114int dcdbas_smi_alloc(struct smi_buffer *smi_buffer, unsigned long size);115void dcdbas_smi_free(struct smi_buffer *smi_buffer);116 117#endif /* _DCDBAS_H_ */118 119