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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* dcdbas.h: Definitions for Dell Systems Management Base driver
*
* Copyright (C) 1995-2005 Dell Inc.
*/
#ifndef _DCDBAS_H_
#define _DCDBAS_H_
#include <linux/device.h>
#include <linux/sysfs.h>
#include <linux/types.h>
#define MAX_SMI_DATA_BUF_SIZE (256 * 1024)
#define HC_ACTION_NONE (0)
#define HC_ACTION_HOST_CONTROL_POWEROFF BIT(1)
#define HC_ACTION_HOST_CONTROL_POWERCYCLE BIT(2)
#define HC_SMITYPE_NONE (0)
#define HC_SMITYPE_TYPE1 (1)
#define HC_SMITYPE_TYPE2 (2)
#define HC_SMITYPE_TYPE3 (3)
#define ESM_APM_CMD (0x0A0)
#define ESM_APM_POWER_CYCLE (0x10)
#define ESM_STATUS_CMD_UNSUCCESSFUL (-1)
#define CMOS_BASE_PORT (0x070)
#define CMOS_PAGE1_INDEX_PORT (0)
#define CMOS_PAGE1_DATA_PORT (1)
#define CMOS_PAGE2_INDEX_PORT_PIIX4 (2)
#define CMOS_PAGE2_DATA_PORT_PIIX4 (3)
#define PE1400_APM_CONTROL_PORT (0x0B0)
#define PCAT_APM_CONTROL_PORT (0x0B2)
#define PCAT_APM_STATUS_PORT (0x0B3)
#define PE1300_CMOS_CMD_STRUCT_PTR (0x38)
#define PE1400_CMOS_CMD_STRUCT_PTR (0x70)
#define MAX_SYSMGMT_SHORTCMD_PARMBUF_LEN (14)
#define MAX_SYSMGMT_LONGCMD_SGENTRY_NUM (16)
#define TIMEOUT_USEC_SHORT_SEMA_BLOCKING (10000)
#define EXPIRED_TIMER (0)
#define SMI_CMD_MAGIC (0x534D4931)
#define SMM_EPS_SIG "$SCB"
#define DCDBAS_DEV_ATTR_RW(_name) \
DEVICE_ATTR(_name,0600,_name##_show,_name##_store);
#define DCDBAS_DEV_ATTR_RO(_name) \
DEVICE_ATTR(_name,0400,_name##_show,NULL);
#define DCDBAS_DEV_ATTR_WO(_name) \
DEVICE_ATTR(_name,0200,NULL,_name##_store);
#define DCDBAS_BIN_ATTR_RW(_name) \
struct bin_attribute bin_attr_##_name = { \
.attr = { .name = __stringify(_name), \
.mode = 0600 }, \
.read = _name##_read, \
.write = _name##_write, \
}
struct smi_cmd {
__u32 magic;
__u32 ebx;
__u32 ecx;
__u16 command_address;
__u8 command_code;
__u8 reserved;
__u8 command_buffer[1];
} __attribute__ ((packed));
struct apm_cmd {
__u8 command;
__s8 status;
__u16 reserved;
union {
struct {
__u8 parm[MAX_SYSMGMT_SHORTCMD_PARMBUF_LEN];
} __attribute__ ((packed)) shortreq;
struct {
__u16 num_sg_entries;
struct {
__u32 size;
__u64 addr;
} __attribute__ ((packed))
sglist[MAX_SYSMGMT_LONGCMD_SGENTRY_NUM];
} __attribute__ ((packed)) longreq;
} __attribute__ ((packed)) parameters;
} __attribute__ ((packed));
int dcdbas_smi_request(struct smi_cmd *smi_cmd);
struct smm_eps_table {
char smm_comm_buff_anchor[4];
u8 length;
u8 checksum;
u8 version;
u64 smm_comm_buff_addr;
u64 num_of_4k_pages;
} __packed;
struct smi_buffer {
u8 *virt;
unsigned long size;
dma_addr_t dma;
};
int dcdbas_smi_alloc(struct smi_buffer *smi_buffer, unsigned long size);
void dcdbas_smi_free(struct smi_buffer *smi_buffer);
#endif /* _DCDBAS_H_ */
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