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 | struct smi_buffer { |
109 | u8 *virt; |
110 | unsigned long size; |
111 | dma_addr_t dma; |
112 | }; |
113 | |
114 | int dcdbas_smi_alloc(struct smi_buffer *smi_buffer, unsigned long size); |
115 | void dcdbas_smi_free(struct smi_buffer *smi_buffer); |
116 | |
117 | #endif /* _DCDBAS_H_ */ |
118 | |
119 | |