1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * dcdbas.h: Definitions for Dell Systems Management Base driver 4 * 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) \ 60 struct bin_attribute bin_attr_##_name = { \ 61 .attr = { .name = __stringify(_name), \ 62 .mode = 0600 }, \ 63 .read = _name##_read, \ 64 .write = _name##_write, \ 65 } 66 67 struct 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 77 struct 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 97 int dcdbas_smi_request(struct smi_cmd *smi_cmd); 98 99 struct 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; 107 108 #endif /* _DCDBAS_H_ */ 109 110