dcdbas.h

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/*
 *  dcdbas.h: Definitions for Dell Systems Management Base driver
 *
 *  Copyright (C) 1995-2005 Dell Inc.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License v2.0 as published by
 *  the Free Software Foundation.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 */

#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 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);

#endif /* _DCDBAS_H_ */