/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 * ioctl interface for /dev/chsc
 *
 * Copyright IBM Corp. 2008, 2012
 * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
 */

#ifndef _ASM_CHSC_H
#define _ASM_CHSC_H

#include <linux/types.h>
#include <linux/ioctl.h>
#include <asm/chpid.h>
#include <asm/schid.h>

#define CHSC_SIZE 0x1000

struct chsc_async_header {
        __u16 length;
        __u16 code;
        __u32 cmd_dependend;
        __u32 key : 4;
        __u32 : 28;
        struct subchannel_id sid;
};

struct chsc_async_area {
        struct chsc_async_header header;
        __u8 data[CHSC_SIZE - sizeof(struct chsc_async_header)];
};

struct chsc_header {
        __u16 length;
        __u16 code;
};

struct chsc_sync_area {
        struct chsc_header header;
        __u8 data[CHSC_SIZE - sizeof(struct chsc_header)];
};

struct chsc_response_struct {
        __u16 length;
        __u16 code;
        __u32 parms;
        __u8 data[CHSC_SIZE - 2 * sizeof(__u16) - sizeof(__u32)];
};

struct chsc_chp_cd {
        struct chp_id chpid;
        int m;
        int fmt;
        struct chsc_response_struct cpcb;
};

struct chsc_cu_cd {
        __u16 cun;
        __u8 cssid;
        int m;
        int fmt;
        struct chsc_response_struct cucb;
};

struct chsc_sch_cud {
        struct subchannel_id schid;
        int fmt;
        struct chsc_response_struct scub;
};

struct conf_id {
        int m;
        __u8 cssid;
        __u8 ssid;
};

struct chsc_conf_info {
        struct conf_id id;
        int fmt;
        struct chsc_response_struct scid;
};

struct ccl_parm_chpid {
        int m;
        struct chp_id chp;
};

struct ccl_parm_cssids {
        __u8 f_cssid;
        __u8 l_cssid;
};

struct chsc_comp_list {
        struct {
                enum {
                        CCL_CU_ON_CHP = 1,
                        CCL_CHP_TYPE_CAP = 2,
                        CCL_CSS_IMG = 4,
                        CCL_CSS_IMG_CONF_CHAR = 5,
                        CCL_IOP_CHP = 6,
                } ctype;
                int fmt;
                struct ccl_parm_chpid chpid;
                struct ccl_parm_cssids cssids;
        } req;
        struct chsc_response_struct sccl;
};

struct chsc_dcal {
        struct {
                enum {
                        DCAL_CSS_IID_PN = 4,
                } atype;
                __u32 list_parm[2];
                int fmt;
        } req;
        struct chsc_response_struct sdcal;
};

struct chsc_cpd_info {
        struct chp_id chpid;
        int m;
        int fmt;
        int rfmt;
        int c;
        struct chsc_response_struct chpdb;
};

#define CHSC_IOCTL_MAGIC 'c'

#define CHSC_START _IOWR(CHSC_IOCTL_MAGIC, 0x81, struct chsc_async_area)
#define CHSC_INFO_CHANNEL_PATH _IOWR(CHSC_IOCTL_MAGIC, 0x82, \
                                    struct chsc_chp_cd)
#define CHSC_INFO_CU _IOWR(CHSC_IOCTL_MAGIC, 0x83, struct chsc_cu_cd)
#define CHSC_INFO_SCH_CU _IOWR(CHSC_IOCTL_MAGIC, 0x84, struct chsc_sch_cud)
#define CHSC_INFO_CI _IOWR(CHSC_IOCTL_MAGIC, 0x85, struct chsc_conf_info)
#define CHSC_INFO_CCL _IOWR(CHSC_IOCTL_MAGIC, 0x86, struct chsc_comp_list)
#define CHSC_INFO_CPD _IOWR(CHSC_IOCTL_MAGIC, 0x87, struct chsc_cpd_info)
#define CHSC_INFO_DCAL _IOWR(CHSC_IOCTL_MAGIC, 0x88, struct chsc_dcal)
#define CHSC_START_SYNC _IOWR(CHSC_IOCTL_MAGIC, 0x89, struct chsc_sync_area)
#define CHSC_ON_CLOSE_SET _IOWR(CHSC_IOCTL_MAGIC, 0x8a, struct chsc_async_area)
#define CHSC_ON_CLOSE_REMOVE _IO(CHSC_IOCTL_MAGIC, 0x8b)

#endif