[unix-history] / usr / src / sys / hp300 / dev / dcmreg.h

/*
 * Copyright (c) 1988 University of Utah.
 * Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * the Systems Programming Group of the University of Utah Computer
 * Science Department.
 *
 * %sccs.include.redist.c%
 *
 * from: Utah $Hdr: dcmreg.h 1.1 90/07/09$
 *
 *	@(#)dcmreg.h	7.4 (Berkeley) %G%
 */

struct dcmdevice {	   /* host address, only odd bytes addressed */
	u_char	dcm_pad0;
	volatile u_char	dcm_rsid;	/* Reset / ID			0001 */
	u_char	dcm_pad1;
	volatile u_char	dcm_ic;		/* Interrupt control register	0003 */
	u_char	dcm_pad2;
	volatile u_char	dcm_sem;	/* Semaphore register		0005 */
	u_char  dcm_pad3[0x7ffa];	/* Unaddressable	0006-7fff */
	u_char	dcm_pad4;
	volatile u_char	dcm_iir;	/* Interrupt ident register	8001 */
	u_char	dcm_pad5;
	volatile u_char	dcm_cr;		/* Command register		8003 */
	u_char  dcm_pad6[0x3fc];	/* Card scratch		8004-83ff */
	struct	dcmrfifo {
		u_char	ptr_pad1;
		volatile u_char	data_char;
		u_char	ptr_pad2;
		volatile u_char	data_stat;
	} dcm_rfifos[4][0x80];		/* Receive queues		8400 */
	struct  {
		u_char	ptr_pad1;
		volatile u_char	data_data;
	} dcm_bmap[0x100];		/* Bitmap table			8c00 */
	struct  {
		u_char	ptr_pad;
		volatile u_char	ptr;
	} dcm_rhead[4];			/* Fifo head - receive		8e00 */
	struct  {
		u_char  ptr_pad;
		volatile u_char  ptr;
	} dcm_rtail[4];			/* Fifo tail - receive		8e08 */
	struct  {
		u_char	ptr_pad;
		volatile u_char	ptr;
	} dcm_thead[4];			/* Fifo head - transmit		8e10 */
	struct  {
		u_char	ptr_pad;
		volatile u_char	ptr;
	} dcm_ttail[4];			/* Fifo tail - transmit		8e18 */
	struct  {
		u_char	pad1;
		volatile u_char	dcm_conf;
		u_char	pad2;
		volatile u_char	dcm_baud;
	} dcm_data[4];			/* Configuration registers	8e20 */
	struct	modemreg {
		u_char	pad0;
		volatile u_char  mdmin;		/* Modem in		8e31 */
		u_char  pad1;
		volatile u_char  mdmout;	/* Modem out		8e33 */
		u_char  pad2;
		volatile u_char  mdmmsk;	/* Modem mask		8e35 */
	} dcm_modem0;
	struct  {
		u_char pad1;
		volatile u_char dcm_data;
	} dcm_cmdtab[4];		/* Command tables		8e36 */
	struct  {
		u_char pad1;
		volatile u_char dcm_data;
	} dcm_icrtab[4];		/* Interrupt data		8e3e */
	u_char  dcm_pad10;
	volatile u_char  dcm_stcon;	/* Self test condition		8e47 */
	struct modemreg dcm_modem1;	/* 638 Modem port1		8e48 */
	struct modemreg dcm_modem2;	/* 638 Modem port2		8e4e */
	struct modemreg dcm_modem3;	/* 638 Modem port3		8e54 */
	u_char	dcm_pad11;
	volatile u_char	dcm_modemchng;	/* 638 Modem change mask	8e5b */
	u_char	dcm_pad12;
	volatile u_char	dcm_modemintr;	/* 638 Modem interrupt mask	8e5d */
	u_char  dcm_pad13[0x82];	/* Undef Shared Ram	8e5e-8edf */
	struct	dcmtfifo {
	    u_char  ptr_pad1;
	    volatile u_char  data_char;
	} dcm_tfifos[4][0x10];		/* Transmit queues		8ee0 */
};

/*
 * Overlay structure for port specific queue "registers".
 * Starts at offset 0x8E00+(port*2).
 */
struct	dcmpreg {
	u_char		pad0;		/* +00 */
	volatile u_char	r_head;		/* +01 */
	u_char		pad1[7];	/* +02 */
	volatile u_char	r_tail;		/* +09 */
	u_char		pad2[7];	/* +0A */
	volatile u_char	t_head;		/* +11 */
	u_char		pad3[7];	/* +12 */
	volatile u_char	t_tail;		/* +19 */
};
#define	dcm_preg(d, p)	((struct dcmpreg *)((u_int)(d)+0x8e00+(p)*2))

/* interface reset/id */
#define DCMCON          0x80	/* REMOTE/LOCAL switch, read */
#define	DCMID		0x5	/* hardwired card id, read */
#define	DCMRS		0x80	/* software reset, write */

/* interrupt control */
#define	DCMIPL(x)	((((x) >> 4) & 3) + 3)	/* interupt level, read */
#define	IC_IR		0x40	/* interupt request, read */
#define	IC_IE		0x80	/* interupt enable, write */
#define	IC_ID		0x00	/* interupt disable, write */


/* Semaphore control */
#define	SEM_BSY		0x80	/* read */
#define SEM_CLR         0xFF	/* write */
#define SEM_LOCK(dcm)	while ((dcm)->dcm_sem & SEM_BSY)
#define SEM_UNLOCK(dcm)	(dcm)->dcm_sem = SEM_CLR

/* command register */
#define	CR_PORT0	0x1
#define	CR_PORT1	0x2
#define	CR_PORT2	0x4
#define	CR_PORT3	0x8
#define	CR_MODM		0x10	/* change modem output lines */
#define	CR_TIMER	0x20	/* 16ms interrupt timer toggle */
#define	CR_SELFT	0x40	/* run self test */
#define CR_MASK		0x7f

/* interrupt ident register */
#define	IIR_PORT0	0x1
#define	IIR_PORT1	0x2
#define	IIR_PORT2	0x4
#define	IIR_PORT3	0x8
#define	IIR_SELFT	0x10	/* self test completed */
#define	IIR_MODM	0x20	/* change in modem input lines */
#define	IIR_TIMEO	0x40	/* Time out */
#define IIR_MASK	0x7f

/* self test cond reg */
#define ST_OK           0xe0

/* Line configuration register */
#define	LC_PNO		0x00
#define	LC_PODD		0x01
#define	LC_PEVEN	0x02
#define	LC_PMSK		0x03

#define	LC_1STOP	0x00
#define	LC_1HSTOP	0x04
#define	LC_2STOP	0x08
#define	LC_STOPMSK	0x0b

#define	LC_8BITS	0x30
#define	LC_7BITS	0x20
#define	LC_6BITS	0x10
#define	LC_5BITS	0x00
#define	LC_BITMSK	0x30

/* baud reg */
#define BR_0		0x00
#define BR_50		0x01
#define BR_75		0x02
#define BR_110		0x03
#define BR_134  	0x04
#define BR_150		0x05
#define BR_300		0x06
#define BR_600		0x07
#define BR_900		0x08
#define BR_1200		0x09
#define BR_1800		0x0a
#define BR_2400		0x0b
#define BR_3600		0x0c
#define BR_4800		0x0d
#define BR_7200		0x0e
#define BR_9600		0x0f
#define BR_19200	0x10
#define BR_38400	0x11

/* modem input register */
#define	MI_CTS		0x08
#define	MI_DM		0x04
#define	MI_CD		0x02
#define	MI_RI		0x01

/* modem output register */
#define	MO_SR		0x04
#define	MO_DTR		0x02
#define	MO_RTS		0x01
#define	MO_ON		((MO_DTR) | (MO_RTS))
#define	MO_OFF		0x00

/* cmd-tab values, write */
#define CT_CON		0x1	/* configuration change */
#define CT_TX		0x2	/* transmit buffer not empty */
#define CT_BRK		0x4	/* toggle BREAK */

/* icr-tab values, read */
#define IT_TX		0x1	/* transmit buffer empty */
#define IT_SPEC		0x2	/* special character received */

/* data errors */
#define RD_OVF		0x08
#define RD_BD		0x10
#define RD_PE		0x20
#define RD_OE		0x40
#define RD_FE		0x80
#define RD_MASK		0xf8

/* Transmit/Receive masks */
#define TX_MASK		0x0f
#define RX_MASK		0xff

/*
 * WARNING: Serial console is assumed to be the lowest select-code card
 * and that card must be logical unit 0 in the kernel.  Also, CONUNIT must
 * be 1, the port affected by the REMOTE/LOCAL switch.
 */
#define CONUNIT	(1)
Commit	Line	Data
60f56dfc KM	1	/*
	2	* Copyright (c) 1988 University of Utah.
	3	* Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
	4	* All rights reserved.
	5	*
	6	* This code is derived from software contributed to Berkeley by
	7	* the Systems Programming Group of the University of Utah Computer
	8	* Science Department.
	9	*
	10	* %sccs.include.redist.c%
	11	*
0e1872ad	12	* from: Utah $Hdr: dcmreg.h 1.1 90/07/09$
60f56dfc	13	*
0e1872ad	14	* @(#)dcmreg.h 7.4 (Berkeley) %G%
60f56dfc KM	15	*/
	16
	17	struct dcmdevice { /* host address, only odd bytes addressed */
	18	u_char dcm_pad0;
	19	volatile u_char dcm_rsid; /* Reset / ID 0001 */
	20	u_char dcm_pad1;
	21	volatile u_char dcm_ic; /* Interrupt control register 0003 */
	22	u_char dcm_pad2;
	23	volatile u_char dcm_sem; /* Semaphore register 0005 */
fdf2ec5d	24	u_char dcm_pad3[0x7ffa]; /* Unaddressable 0006-7fff */
60f56dfc KM	25	u_char dcm_pad4;
	26	volatile u_char dcm_iir; /* Interrupt ident register 8001 */
	27	u_char dcm_pad5;
	28	volatile u_char dcm_cr; /* Command register 8003 */
fdf2ec5d KM	29	u_char dcm_pad6[0x3fc]; /* Card scratch 8004-83ff */
	30	struct dcmrfifo {
	31	u_char ptr_pad1;
	32	volatile u_char data_char;
	33	u_char ptr_pad2;
	34	volatile u_char data_stat;
	35	} dcm_rfifos[4][0x80]; /* Receive queues 8400 */
60f56dfc	36	struct {
fdf2ec5d KM	37	u_char ptr_pad1;
	38	volatile u_char data_data;
	39	} dcm_bmap[0x100]; /* Bitmap table 8c00 */
60f56dfc	40	struct {
fdf2ec5d KM	41	u_char ptr_pad;
	42	volatile u_char ptr;
	43	} dcm_rhead[4]; /* Fifo head - receive 8e00 */
60f56dfc	44	struct {
fdf2ec5d KM	45	u_char ptr_pad;
	46	volatile u_char ptr;
	47	} dcm_rtail[4]; /* Fifo tail - receive 8e08 */
60f56dfc	48	struct {
fdf2ec5d KM	49	u_char ptr_pad;
	50	volatile u_char ptr;
	51	} dcm_thead[4]; /* Fifo head - transmit 8e10 */
60f56dfc	52	struct {
fdf2ec5d KM	53	u_char ptr_pad;
	54	volatile u_char ptr;
	55	} dcm_ttail[4]; /* Fifo tail - transmit 8e18 */
60f56dfc	56	struct {
fdf2ec5d KM	57	u_char pad1;
	58	volatile u_char dcm_conf;
	59	u_char pad2;
	60	volatile u_char dcm_baud;
	61	} dcm_data[4]; /* Configuration registers 8e20 */
0e1872ad KM	62	struct modemreg {
	63	u_char pad0;
	64	volatile u_char mdmin; /* Modem in 8e31 */
	65	u_char pad1;
	66	volatile u_char mdmout; /* Modem out 8e33 */
	67	u_char pad2;
	68	volatile u_char mdmmsk; /* Modem mask 8e35 */
	69	} dcm_modem0;
60f56dfc KM	70	struct {
	71	u_char pad1;
	72	volatile u_char dcm_data;
fdf2ec5d	73	} dcm_cmdtab[4]; /* Command tables 8e36 */
60f56dfc KM	74	struct {
	75	u_char pad1;
	76	volatile u_char dcm_data;
fdf2ec5d	77	} dcm_icrtab[4]; /* Interrupt data 8e3e */
60f56dfc KM	78	u_char dcm_pad10;
60f56dfc KM	79	volatile u_char dcm_stcon; /* Self test condition 8e47 */
0e1872ad KM	80	struct modemreg dcm_modem1; /* 638 Modem port1 8e48 */
	81	struct modemreg dcm_modem2; /* 638 Modem port2 8e4e */
	82	struct modemreg dcm_modem3; /* 638 Modem port3 8e54 */
	83	u_char dcm_pad11;
	84	volatile u_char dcm_modemchng; /* 638 Modem change mask 8e5b */
	85	u_char dcm_pad12;
	86	volatile u_char dcm_modemintr; /* 638 Modem interrupt mask 8e5d */
	87	u_char dcm_pad13[0x82]; /* Undef Shared Ram 8e5e-8edf */
fdf2ec5d	88	struct dcmtfifo {
60f56dfc KM	89	u_char ptr_pad1;
60f56dfc KM	90	volatile u_char data_char;
fdf2ec5d KM	91	} dcm_tfifos[4][0x10]; /* Transmit queues 8ee0 */
	92	};
	93
	94	/*
	95	* Overlay structure for port specific queue "registers".
	96	* Starts at offset 0x8E00+(port*2).
	97	*/
	98	struct dcmpreg {
	99	u_char pad0; /* +00 */
	100	volatile u_char r_head; /* +01 */
	101	u_char pad1[7]; /* +02 */
	102	volatile u_char r_tail; /* +09 */
	103	u_char pad2[7]; /* +0A */
	104	volatile u_char t_head; /* +11 */
	105	u_char pad3[7]; /* +12 */
	106	volatile u_char t_tail; /* +19 */
60f56dfc	107	};
fdf2ec5d	108	#define dcm_preg(d, p) ((struct dcmpreg )((u_int)(d)+0x8e00+(p)2))
60f56dfc KM	109
	110	/* interface reset/id */
	111	#define DCMCON 0x80 /* REMOTE/LOCAL switch, read */
	112	#define DCMID 0x5 /* hardwired card id, read */
	113	#define DCMRS 0x80 /* software reset, write */
	114
	115	/* interrupt control */
	116	#define DCMIPL(x) ((((x) >> 4) & 3) + 3) /* interupt level, read */
	117	#define IC_IR 0x40 /* interupt request, read */
	118	#define IC_IE 0x80 /* interupt enable, write */
	119	#define IC_ID 0x00 /* interupt disable, write */
	120
	121
	122	/* Semaphore control */
	123	#define SEM_BSY 0x80 /* read */
	124	#define SEM_CLR 0xFF /* write */
	125	#define SEM_LOCK(dcm) while ((dcm)->dcm_sem & SEM_BSY)
	126	#define SEM_UNLOCK(dcm) (dcm)->dcm_sem = SEM_CLR
	127
	128	/* command register */
	129	#define CR_PORT0 0x1
	130	#define CR_PORT1 0x2
	131	#define CR_PORT2 0x4
	132	#define CR_PORT3 0x8
	133	#define CR_MODM 0x10 /* change modem output lines */
	134	#define CR_TIMER 0x20 /* 16ms interrupt timer toggle */
	135	#define CR_SELFT 0x40 /* run self test */
	136	#define CR_MASK 0x7f
	137
	138	/* interrupt ident register */
	139	#define IIR_PORT0 0x1
	140	#define IIR_PORT1 0x2
	141	#define IIR_PORT2 0x4
	142	#define IIR_PORT3 0x8
	143	#define IIR_SELFT 0x10 /* self test completed */
	144	#define IIR_MODM 0x20 /* change in modem input lines */
	145	#define IIR_TIMEO 0x40 /* Time out */
	146	#define IIR_MASK 0x7f
	147
	148	/* self test cond reg */
	149	#define ST_OK 0xe0
	150
	151	/* Line configuration register */
	152	#define LC_PNO 0x00
	153	#define LC_PODD 0x01
	154	#define LC_PEVEN 0x02
	155	#define LC_PMSK 0x03
	156
	157	#define LC_1STOP 0x00
	158	#define LC_1HSTOP 0x04
	159	#define LC_2STOP 0x08
	160	#define LC_STOPMSK 0x0b
	161
	162	#define LC_8BITS 0x30
	163	#define LC_7BITS 0x20
	164	#define LC_6BITS 0x10
	165	#define LC_5BITS 0x00
	166	#define LC_BITMSK 0x30
	167
	168	/* baud reg */
	169	#define BR_0 0x00
	170	#define BR_50 0x01
	171	#define BR_75 0x02
	172	#define BR_110 0x03
173	#define BR_134 0x04
174	#define BR_150 0x05
175	#define BR_300 0x06
176	#define BR_600 0x07
177	#define BR_900 0x08
178	#define BR_1200 0x09
179	#define BR_1800 0x0a
180	#define BR_2400 0x0b
181	#define BR_3600 0x0c
182	#define BR_4800 0x0d
183	#define BR_7200 0x0e
184	#define BR_9600 0x0f
185	#define BR_19200 0x10
186	#define BR_38400 0x11
187
188	/* modem input register */
189	#define MI_CTS 0x08
190	#define MI_DM 0x04
191	#define MI_CD 0x02
192	#define MI_RI 0x01
193
194	/* modem output register */
195	#define MO_SR 0x04
196	#define MO_DTR 0x02
197	#define MO_RTS 0x01
198	#define MO_ON ((MO_DTR) \| (MO_RTS))
199	#define MO_OFF 0x00
200
201	/* cmd-tab values, write */
202	#define CT_CON 0x1 /* configuration change */
203	#define CT_TX 0x2 /* transmit buffer not empty */
204	#define CT_BRK 0x4 /* toggle BREAK */
205
206	/* icr-tab values, read */
207	#define IT_TX 0x1 /* transmit buffer empty */
208	#define IT_SPEC 0x2 /* special character received */
209
210	/* data errors */
211	#define RD_OVF 0x08
212	#define RD_BD 0x10
213	#define RD_PE 0x20
214	#define RD_OE 0x40
215	#define RD_FE 0x80
216	#define RD_MASK 0xf8
217
218	/* Transmit/Receive masks */
219	#define TX_MASK 0x0f
220	#define RX_MASK 0xff
221
222	/*
ac87db15 MH	223	* WARNING: Serial console is assumed to be the lowest select-code card
	224	* and that card must be logical unit 0 in the kernel. Also, CONUNIT must
	225	* be 1, the port affected by the REMOTE/LOCAL switch.
60f56dfc	226	*/
60f56dfc	227	#define CONUNIT (1)