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/*
* include/asm-s390/irqextras390.h
*
* S390 version
* Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
* Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
*/
#ifndef __irqextras390_h
#define __irqextras390_h
/*
irqextras390.h by D.J. Barrow
if you are a bitfield fan & are paranoid that ansi dosen't
give hard definitions about the size of an int or long you might
prefer these definitions as an alternative.
*/
#include <linux/types.h>
typedef struct
{
unsigned key:4;
unsigned s:1;
unsigned l:1;
unsigned cc:2;
unsigned f:1;
unsigned p:1;
unsigned i:1;
unsigned a:1;
unsigned u:1;
unsigned z:1;
unsigned e:1;
unsigned n:1;
unsigned zero:1;
unsigned fc_start:1;
unsigned fc_halt:1;
unsigned fc_clear:1;
unsigned ac_resume_pending:1;
unsigned ac_start_pending:1;
unsigned ac_halt_pending:1;
unsigned ac_clear_pending:1;
unsigned ac_subchannel_active:1;
unsigned ac_device_active:1;
unsigned ac_suspended:1;
unsigned sc_alert:1;
unsigned sc_intermediate:1;
unsigned sc_primary:1;
unsigned sc_seconary:1;
unsigned sc_status_pending:1;
__u32 ccw_address;
unsigned dev_status_attention:1;
unsigned dev_status_modifier:1;
unsigned dev_status_control_unit_end:1;
unsigned dev_status_busy:1;
unsigned dev_status_channel_end:1;
unsigned dev_status_device_end:1;
unsigned dev_status_unit_check:1;
unsigned dev_status_unit_exception:1;
unsigned sch_status_program_cont_int:1;
unsigned sch_status_incorrect_length:1;
unsigned sch_status_program_check:1;
unsigned sch_status_protection_check:1;
unsigned sch_status_channel_data_check:1;
unsigned sch_status_channel_control_check:1;
unsigned sch_status_interface_control_check:1;
unsigned sch_status_chaining_check:1;
__u16 byte_count;
} scsw_bits_t __attribute__((packed));
typedef struct
{
__u32 flags;
__u32 ccw_address;
__u8 dev_status;
__u8 sch_status;
__u16 byte_count;
} scsw_words_t __attribute__((packed));
typedef struct
{
__u8 cmd_code;
unsigned cd:1;
unsigned cc:1;
unsigned sli:1;
unsigned skip:1;
unsigned pci:1;
unsigned ida:1;
unsigned s:1;
unsigned res1:1;
__u16 count;
__u32 ccw_data_address;
} ccw1_bits_t __attribute__((packed,aligned(8)));
typedef struct
{
__u32 interruption_parm;
unsigned key:4;
unsigned s:1;
unsigned res1:3;
unsigned f:1;
unsigned p:1;
unsigned i:1;
unsigned a:1;
unsigned u:1;
__u8 lpm;
unsigned l:1;
unsigned res2:7;
ccw1_bits_t *ccw_program_address;
} orb_bits_t __attribute__((packed));
void fixchannelprogram(orb_bits_t *orbptr);
void fixccws(ccw1_bits_t *ccwptr);
enum
{
ccw_write=0x1,
ccw_read=0x2,
ccw_read_backward=0xc,
ccw_control=0x3,
ccw_sense=0x4,
ccw_sense_id=0xe4,
ccw_transfer_in_channel0=0x8,
ccw_transfer_in_channel1=0x8,
ccw_set_x_mode=0xc3, // according to uli's lan notes
ccw_nop=0x3 // according to uli's notes again
// n.b. ccw_control clashes with this
// so I presume its a special case of
// control
};
#endif
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