FM / asm

/usr/src/linux-headers-5.15.0-190/arch/m68k/include/asm/

/usr/src/linux-headers-5.15.0-190/arch/m68k/include/asm

Name	Size	Mode	Actions
adb_iop.h	1188	0644	edit dl rm
amigahw.h	10737	0644	edit dl rm
amigaints.h	3583	0644	edit dl rm
amigayle.h	3271	0644	edit dl rm
amipcmcia.h	2568	0644	edit dl rm
apollohw.h	2410	0644	edit dl rm
asm-offsets.h	35	0644	edit dl rm
asm-prototypes.h	211	0644	edit dl rm
atarihw.h	20919	0644	edit dl rm
atariints.h	5691	0644	edit dl rm
atarikb.h	1434	0644	edit dl rm
atari_joystick.h	457	0644	edit dl rm
atari_stdma.h	514	0644	edit dl rm
atari_stram.h	528	0644	edit dl rm
atomic.h	5016	0644	edit dl rm
bitops.h	12827	0644	edit dl rm
blinken.h	641	0644	edit dl rm
bootinfo.h	783	0644	edit dl rm
bootstd.h	4747	0644	edit dl rm
bug.h	659	0644	edit dl rm
bvme6000hw.h	3529	0644	edit dl rm
cache.h	296	0644	edit dl rm
cacheflush.h	133	0644	edit dl rm
cacheflush_mm.h	7173	0644	edit dl rm
cacheflush_no.h	1884	0644	edit dl rm
checksum.h	3497	0644	edit dl rm
cmpxchg.h	3189	0644	edit dl rm
coldfire.h	1653	0644	edit dl rm
contregs.h	3390	0644	edit dl rm
current.h	580	0644	edit dl rm
delay.h	3504	0644	edit dl rm
div64.h	858	0644	edit dl rm
dma.h	17040	0644	edit dl rm
dsp56k.h	1269	0644	edit dl rm
dvma.h	9903	0644	edit dl rm
elf.h	3145	0644	edit dl rm
entry.h	5902	0644	edit dl rm
export.h	53	0644	edit dl rm
fb.h	921	0644	edit dl rm
fbio.h	10106	0644	edit dl rm
flat.h	333	0644	edit dl rm
floppy.h	5330	0644	edit dl rm
fpu.h	535	0644	edit dl rm
ftrace.h	12	0644	edit dl rm
gpio.h	2294	0644	edit dl rm
hash.h	2115	0644	edit dl rm
hp300hw.h	186	0644	edit dl rm
hwtest.h	467	0644	edit dl rm
ide.h	1708	0644	edit dl rm
idprom.h	725	0644	edit dl rm
intersil.h	1134	0644	edit dl rm
io.h	244	0644	edit dl rm
io_mm.h	13198	0644	edit dl rm
io_no.h	4196	0644	edit dl rm
irq.h	2634	0644	edit dl rm
irqflags.h	1652	0644	edit dl rm
Kbuild	165	0644	edit dl rm
kexec.h	732	0644	edit dl rm
kmap.h	1754	0644	edit dl rm
linkage.h	1583	0644	edit dl rm
m52xxacr.h	3660	0644	edit dl rm
m53xxacr.h	3683	0644	edit dl rm
m53xxsim.h	55262	0644	edit dl rm
m54xxacr.h	4934	0644	edit dl rm
m54xxgpt.h	3750	0644	edit dl rm
m54xxpci.h	6276	0644	edit dl rm
m54xxsim.h	3892	0644	edit dl rm
m520xsim.h	7323	0644	edit dl rm
m523xsim.h	7882	0644	edit dl rm
m525xsim.h	10822	0644	edit dl rm
m527xsim.h	13835	0644	edit dl rm
m528xsim.h	9599	0644	edit dl rm
m5206sim.h	6555	0644	edit dl rm
m5272sim.h	6199	0644	edit dl rm
m5307sim.h	7698	0644	edit dl rm
m5407sim.h	6289	0644	edit dl rm
m5441xsim.h	10294	0644	edit dl rm
machdep.h	1331	0644	edit dl rm
machines.h	3209	0644	edit dl rm
machw.h	588	0644	edit dl rm
macintosh.h	2438	0644	edit dl rm
macints.h	3210	0644	edit dl rm
mac_asc.h	520	0644	edit dl rm
mac_baboon.h	999	0644	edit dl rm
mac_iop.h	5499	0644	edit dl rm
mac_oss.h	1873	0644	edit dl rm
mac_psc.h	7427	0644	edit dl rm
mac_via.h	11718	0644	edit dl rm
math-emu.h	6897	0644	edit dl rm
MC68EZ328.h	38650	0644	edit dl rm
MC68VZ328.h	42006	0644	edit dl rm
MC68328.h	38724	0644	edit dl rm
mc146818rtc.h	598	0644	edit dl rm
mcf8390.h	3844	0644	edit dl rm
mcfclk.h	961	0644	edit dl rm
mcfdma.h	6662	0644	edit dl rm
mcfgpio.h	8269	0644	edit dl rm
mcfintc.h	3161	0644	edit dl rm
mcfmmu.h	3761	0644	edit dl rm
mcfpit.h	2278	0644	edit dl rm
mcfqspi.h	1466	0644	edit dl rm
mcfsim.h	1531	0644	edit dl rm
mcfslt.h	1240	0644	edit dl rm
mcftimer.h	2357	0644	edit dl rm
mcfuart.h	7076	0644	edit dl rm
mcfwdebug.h	5106	0644	edit dl rm
mcf_pgalloc.h	2000	0644	edit dl rm
mcf_pgtable.h	8312	0644	edit dl rm
mmu.h	243	0644	edit dl rm
mmu_context.h	7207	0644	edit dl rm
module.h	847	0644	edit dl rm
module.lds.h	91	0644	edit dl rm
motorola_pgalloc.h	2146	0644	edit dl rm
motorola_pgtable.h	7610	0644	edit dl rm
movs.h	1472	0644	edit dl rm
mvme16xhw.h	2216	0644	edit dl rm
mvme147hw.h	2938	0644	edit dl rm
natfeat.h	533	0644	edit dl rm
nettel.h	3023	0644	edit dl rm
nubus.h	1262	0644	edit dl rm
openprom.h	8173	0644	edit dl rm
oplib.h	9768	0644	edit dl rm
page.h	1728	0644	edit dl rm
page_mm.h	3399	0644	edit dl rm
page_no.h	1322	0644	edit dl rm
page_offset.h	256	0644	edit dl rm
parport.h	837	0644	edit dl rm
pci.h	258	0644	edit dl rm
pgalloc.h	444	0644	edit dl rm
pgtable.h	127	0644	edit dl rm
pgtable_mm.h	4931	0644	edit dl rm
pgtable_no.h	1438	0644	edit dl rm
processor.h	4158	0644	edit dl rm
ptrace.h	643	0644	edit dl rm
q40ints.h	749	0644	edit dl rm
q40_master.h	2357	0644	edit dl rm
quicc_simple.h	1830	0644	edit dl rm
raw_io.h	12003	0644	edit dl rm
serial.h	1165	0644	edit dl rm
setup.h	9467	0644	edit dl rm
signal.h	1377	0644	edit dl rm
smp.h	32	0644	edit dl rm
string.h	1717	0644	edit dl rm
sun3-head.h	353	0644	edit dl rm
sun3ints.h	989	0644	edit dl rm
sun3mmu.h	5025	0644	edit dl rm
sun3x.h	868	0644	edit dl rm
sun3xflop.h	5757	0644	edit dl rm
sun3xprom.h	1343	0644	edit dl rm
sun3_pgalloc.h	1267	0644	edit dl rm
sun3_pgtable.h	6583	0644	edit dl rm
switch_to.h	1549	0644	edit dl rm
syscall.h	251	0644	edit dl rm
thread_info.h	2237	0644	edit dl rm
timex.h	974	0644	edit dl rm
tlb.h	135	0644	edit dl rm
tlbflush.h	5989	0644	edit dl rm
traps.h	8615	0644	edit dl rm
uaccess.h	12563	0644	edit dl rm
ucontext.h	570	0644	edit dl rm
unistd.h	993	0644	edit dl rm
user.h	3874	0644	edit dl rm
vga.h	902	0644	edit dl rm
virtconvert.h	834	0644	edit dl rm
vmalloc.h	90	0644	edit dl rm
zorro.h	1222	0644	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-190/arch/m68k/include/asm/mac_iop.h (5499B)

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * I/O Processor (IOP) defines and structures, mostly snagged from A/UX
 * header files.
 *
 * The original header from which this was taken is copyrighted. I've done some
 * rewriting (in fact my changes make this a bit more readable, IMHO) but some
 * more should be done.
 */

/*
 * This is the base address of the IOPs. Use this as the address of
 * a "struct iop" (see below) to see where the actual registers fall.
 */

#define SCC_IOP_BASE_IIFX	(0x50F04000)
#define ISM_IOP_BASE_IIFX	(0x50F12000)

#define SCC_IOP_BASE_QUADRA	(0x50F0C000)
#define ISM_IOP_BASE_QUADRA	(0x50F1E000)

/* IOP status/control register bits: */

#define	IOP_BYPASS	0x01	/* bypass-mode hardware access */
#define	IOP_AUTOINC	0x02	/* allow autoincrement of ramhi/lo */
#define	IOP_RUN		0x04	/* set to 0 to reset IOP chip */
#define	IOP_IRQ		0x08	/* generate IRQ to IOP if 1 */
#define	IOP_INT0	0x10	/* intr priority from IOP to host */
#define	IOP_INT1	0x20	/* intr priority from IOP to host */
#define	IOP_HWINT	0x40	/* IRQ from hardware; bypass mode only */
#define	IOP_DMAINACTIVE	0x80	/* no DMA request active; bypass mode only */

#define NUM_IOPS	2
#define NUM_IOP_CHAN	7
#define NUM_IOP_MSGS	NUM_IOP_CHAN*8
#define IOP_MSG_LEN	32

/* IOP reference numbers, used by the globally-visible iop_xxx functions */

#define IOP_NUM_SCC	0
#define IOP_NUM_ISM	1

/* IOP channel states */

#define IOP_MSG_IDLE		0       /* idle                         */
#define IOP_MSG_NEW		1       /* new message sent             */
#define IOP_MSG_RCVD		2       /* message received; processing */
#define IOP_MSG_COMPLETE	3       /* message processing complete  */

/* IOP message status codes */

#define IOP_MSGSTATUS_UNUSED	0	/* Unused message structure        */
#define IOP_MSGSTATUS_WAITING	1	/* waiting for channel             */
#define IOP_MSGSTATUS_SENT	2	/* message sent, awaiting reply    */
#define IOP_MSGSTATUS_COMPLETE	3	/* message complete and reply rcvd */
#define IOP_MSGSTATUS_UNSOL	6	/* message is unsolicited          */

/* IOP memory addresses of the members of the mac_iop_kernel structure. */

#define IOP_ADDR_MAX_SEND_CHAN	0x0200
#define IOP_ADDR_SEND_STATE	0x0201
#define IOP_ADDR_PATCH_CTRL	0x021F
#define IOP_ADDR_SEND_MSG	0x0220
#define IOP_ADDR_MAX_RECV_CHAN	0x0300
#define IOP_ADDR_RECV_STATE	0x0301
#define IOP_ADDR_ALIVE		0x031F
#define IOP_ADDR_RECV_MSG	0x0320

#ifndef __ASSEMBLY__

/*
 * IOP Control registers, staggered because in usual Apple style they were
 * too lazy to decode the A0 bit. This structure is assumed to begin at
 * one of the xxx_IOP_BASE addresses given above.
 */

struct mac_iop {
    __u8	ram_addr_hi;	/* shared RAM address hi byte */
    __u8	pad0;
    __u8	ram_addr_lo;	/* shared RAM address lo byte */
    __u8	pad1;
    __u8	status_ctrl;	/* status/control register */
    __u8	pad2[3];
    __u8	ram_data;	/* RAM data byte at ramhi/lo */

__u8	pad3[23];

/* Bypass-mode hardware access registers */

union {
	struct {		/* SCC registers */
	    __u8 sccb_cmd;	/* SCC B command reg */
	    __u8 pad4;
	    __u8 scca_cmd;	/* SCC A command reg */
	    __u8 pad5;
	    __u8 sccb_data;	/* SCC B data */
	    __u8 pad6;
	    __u8 scca_data;	/* SCC A data */
	} scc_regs;

struct {		/* ISM registers */
	    __u8 wdata;		/* write a data byte */
	    __u8 pad7;
	    __u8 wmark;		/* write a mark byte */
	    __u8 pad8;
	    __u8 wcrc;		/* write 2-byte crc to disk */
	    __u8 pad9;
	    __u8 wparams;	/* write the param regs */
	    __u8 pad10;
	    __u8 wphase;	/* write the phase states & dirs */
	    __u8 pad11;
	    __u8 wsetup;	/* write the setup register */
	    __u8 pad12;
	    __u8 wzeroes;	/* mode reg: 1's clr bits, 0's are x */
	    __u8 pad13;
	    __u8 wones;		/* mode reg: 1's set bits, 0's are x */
	    __u8 pad14;
	    __u8 rdata;		/* read a data byte */
	    __u8 pad15;
	    __u8 rmark;		/* read a mark byte */
	    __u8 pad16;
	    __u8 rerror;	/* read the error register */
	    __u8 pad17;
	    __u8 rparams;	/* read the param regs */
	    __u8 pad18;
	    __u8 rphase;	/* read the phase states & dirs */
	    __u8 pad19;
	    __u8 rsetup;	/* read the setup register */
	    __u8 pad20;
	    __u8 rmode;		/* read the mode register */
	    __u8 pad21;
	    __u8 rhandshake;	/* read the handshake register */
	} ism_regs;
    } b;
};

/* This structure is used to track IOP messages in the Linux kernel */

struct iop_msg {
	struct iop_msg	*next;		/* next message in queue or NULL     */
	uint	iop_num;		/* IOP number                        */
	uint	channel;		/* channel number                    */
	void	*caller_priv;		/* caller private data               */
	int	status;			/* status of this message            */
	__u8	message[IOP_MSG_LEN];	/* the message being sent/received   */
	__u8	reply[IOP_MSG_LEN];	/* the reply to the message          */
	void	(*handler)(struct iop_msg *);
					/* function to call when reply recvd */
};

extern int iop_scc_present,iop_ism_present;

extern int iop_listen(uint, uint,
			void (*handler)(struct iop_msg *),
			const char *);
extern int iop_send_message(uint, uint, void *, uint, __u8 *,
			    void (*)(struct iop_msg *));
extern void iop_complete_message(struct iop_msg *);
extern void iop_upload_code(uint, __u8 *, uint, __u16);
extern void iop_download_code(uint, __u8 *, uint, __u16);
extern __u8 *iop_compare_code(uint, __u8 *, uint, __u16);
extern void iop_ism_irq_poll(uint);

extern void iop_register_interrupts(void);

#endif /* __ASSEMBLY__ */

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