[mirror_ubuntu-zesty-kernel.git] / arch / mips / include / asm / sgi / ioc.h

/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License. See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * ioc.h: Definitions for SGI I/O Controller
 *
 * Copyright (C) 1996 David S. Miller
 * Copyright (C) 1997, 1998, 1999, 2000 Ralf Baechle
 * Copyright (C) 2001, 2003 Ladislav Michl
 */

#ifndef _SGI_IOC_H
#define _SGI_IOC_H

#include <linux/types.h>
#include <asm/sgi/pi1.h>

/*
 * All registers are 8-bit wide aligned on 32-bit boundary. Bad things
 * happen if you try word access them. You have been warned.
 */

struct sgioc_uart_regs {
	u8 _ctrl1[3];
	volatile u8 ctrl1;
	u8 _data1[3];
	volatile u8 data1;
	u8 _ctrl2[3];
	volatile u8 ctrl2;
	u8 _data2[3];
	volatile u8 data2;
};

struct sgioc_keyb_regs {
	u8 _data[3];
	volatile u8 data;
	u8 _command[3];
	volatile u8 command;
};

struct sgint_regs {
	u8 _istat0[3];
	volatile u8 istat0;		/* Interrupt status zero */
#define SGINT_ISTAT0_FFULL	0x01
#define SGINT_ISTAT0_SCSI0	0x02
#define SGINT_ISTAT0_SCSI1	0x04
#define SGINT_ISTAT0_ENET	0x08
#define SGINT_ISTAT0_GFXDMA	0x10
#define SGINT_ISTAT0_PPORT	0x20
#define SGINT_ISTAT0_HPC2	0x40
#define SGINT_ISTAT0_LIO2	0x80
	u8 _imask0[3];
	volatile u8 imask0;		/* Interrupt mask zero */
	u8 _istat1[3];
	volatile u8 istat1;		/* Interrupt status one */
#define SGINT_ISTAT1_ISDNI	0x01
#define SGINT_ISTAT1_PWR	0x02
#define SGINT_ISTAT1_ISDNH	0x04
#define SGINT_ISTAT1_LIO3	0x08
#define SGINT_ISTAT1_HPC3	0x10
#define SGINT_ISTAT1_AFAIL	0x20
#define SGINT_ISTAT1_VIDEO	0x40
#define SGINT_ISTAT1_GIO2	0x80
	u8 _imask1[3];
	volatile u8 imask1;		/* Interrupt mask one */
	u8 _vmeistat[3];
	volatile u8 vmeistat;		/* VME interrupt status */
	u8 _cmeimask0[3];
	volatile u8 cmeimask0;		/* VME interrupt mask zero */
	u8 _cmeimask1[3];
	volatile u8 cmeimask1;		/* VME interrupt mask one */
	u8 _cmepol[3];
	volatile u8 cmepol;		/* VME polarity */
	u8 _tclear[3];
	volatile u8 tclear;
	u8 _errstat[3];
	volatile u8 errstat;	/* Error status reg, reserved on INT2 */
	u32 _unused0[2];
	u8 _tcnt0[3];
	volatile u8 tcnt0;		/* counter 0 */
	u8 _tcnt1[3];
	volatile u8 tcnt1;		/* counter 1 */
	u8 _tcnt2[3];
	volatile u8 tcnt2;		/* counter 2 */
	u8 _tcword[3];
	volatile u8 tcword;		/* control word */
#define SGINT_TCWORD_BCD	0x01	/* Use BCD mode for counters */
#define SGINT_TCWORD_MMASK	0x0e	/* Mode bitmask. */
#define SGINT_TCWORD_MITC	0x00	/* IRQ on terminal count (doesn't work) */
#define SGINT_TCWORD_MOS	0x02	/* One-shot IRQ mode. */
#define SGINT_TCWORD_MRGEN	0x04	/* Normal rate generation */
#define SGINT_TCWORD_MSWGEN	0x06	/* Square wave generator mode */
#define SGINT_TCWORD_MSWST	0x08	/* Software strobe */
#define SGINT_TCWORD_MHWST	0x0a	/* Hardware strobe */
#define SGINT_TCWORD_CMASK	0x30	/* Command mask */
#define SGINT_TCWORD_CLAT	0x00	/* Latch command */
#define SGINT_TCWORD_CLSB	0x10	/* LSB read/write */
#define SGINT_TCWORD_CMSB	0x20	/* MSB read/write */
#define SGINT_TCWORD_CALL	0x30	/* Full counter read/write */
#define SGINT_TCWORD_CNT0	0x00	/* Select counter zero */
#define SGINT_TCWORD_CNT1	0x40	/* Select counter one */
#define SGINT_TCWORD_CNT2	0x80	/* Select counter two */
#define SGINT_TCWORD_CRBCK	0xc0	/* Readback command */
};

/*
 * The timer is the good old 8254.  Unlike in PCs it's clocked at exactly 1MHz
 */
#define SGINT_TIMER_CLOCK	1000000

/*
 * This is the constant we're using for calibrating the counter.
 */
#define SGINT_TCSAMP_COUNTER	((SGINT_TIMER_CLOCK / HZ) + 255)

/* We need software copies of these because they are write only. */
extern u8 sgi_ioc_reset, sgi_ioc_write;

struct sgioc_regs {
	struct pi1_regs pport;
	u32 _unused0[2];
	struct sgioc_uart_regs uart;
	struct sgioc_keyb_regs kbdmouse;
	u8 _gcsel[3];
	volatile u8 gcsel;
	u8 _genctrl[3];
	volatile u8 genctrl;
	u8 _panel[3];
	volatile u8 panel;
#define SGIOC_PANEL_POWERON	0x01
#define SGIOC_PANEL_POWERINTR	0x02
#define SGIOC_PANEL_VOLDNINTR	0x10
#define SGIOC_PANEL_VOLDNHOLD	0x20
#define SGIOC_PANEL_VOLUPINTR	0x40
#define SGIOC_PANEL_VOLUPHOLD	0x80
	u32 _unused1;
	u8 _sysid[3];
	volatile u8 sysid;
#define SGIOC_SYSID_FULLHOUSE	0x01
#define SGIOC_SYSID_BOARDREV(x)	(((x) & 0x1e) >> 1)
#define SGIOC_SYSID_CHIPREV(x)	(((x) & 0xe0) >> 5)
	u32 _unused2;
	u8 _read[3];
	volatile u8 read;
	u32 _unused3;
	u8 _dmasel[3];
	volatile u8 dmasel;
#define SGIOC_DMASEL_SCLK10MHZ	0x00	/* use 10MHZ serial clock */
#define SGIOC_DMASEL_ISDNB	0x01	/* enable isdn B */
#define SGIOC_DMASEL_ISDNA	0x02	/* enable isdn A */
#define SGIOC_DMASEL_PPORT	0x04	/* use parallel DMA */
#define SGIOC_DMASEL_SCLK667MHZ	0x10	/* use 6.67MHZ serial clock */
#define SGIOC_DMASEL_SCLKEXT	0x20	/* use external serial clock */
	u32 _unused4;
	u8 _reset[3];
	volatile u8 reset;
#define SGIOC_RESET_PPORT	0x01	/* 0=parport reset, 1=nornal */
#define SGIOC_RESET_KBDMOUSE	0x02	/* 0=kbdmouse reset, 1=normal */
#define SGIOC_RESET_EISA	0x04	/* 0=eisa reset, 1=normal */
#define SGIOC_RESET_ISDN	0x08	/* 0=isdn reset, 1=normal */
#define SGIOC_RESET_LC0OFF	0x10	/* guiness: turn led off (red, else green) */
#define SGIOC_RESET_LC1OFF	0x20	/* guiness: turn led off (green, else amber) */
	u32 _unused5;
	u8 _write[3];
	volatile u8 write;
#define SGIOC_WRITE_NTHRESH	0x01	/* use 4.5db threshold */
#define SGIOC_WRITE_TPSPEED	0x02	/* use 100ohm TP speed */
#define SGIOC_WRITE_EPSEL	0x04	/* force cable mode: 1=AUI 0=TP */
#define SGIOC_WRITE_EASEL	0x08	/* 1=autoselect 0=manual cable selection */
#define SGIOC_WRITE_U1AMODE	0x10	/* 1=PC 0=MAC UART mode */
#define SGIOC_WRITE_U0AMODE	0x20	/* 1=PC 0=MAC UART mode */
#define SGIOC_WRITE_MLO		0x40	/* 1=4.75V 0=+5V */
#define SGIOC_WRITE_MHI		0x80	/* 1=5.25V 0=+5V */
	u32 _unused6;
	struct sgint_regs int3;
	u32 _unused7[16];
	volatile u32 extio;		/* FullHouse only */
#define EXTIO_S0_IRQ_3		0x8000	/* S0: vid.vsync */
#define EXTIO_S0_IRQ_2		0x4000	/* S0: gfx.fifofull */
#define EXTIO_S0_IRQ_1		0x2000	/* S0: gfx.int */
#define EXTIO_S0_RETRACE	0x1000
#define EXTIO_SG_IRQ_3		0x0800	/* SG: vid.vsync */
#define EXTIO_SG_IRQ_2		0x0400	/* SG: gfx.fifofull */
#define EXTIO_SG_IRQ_1		0x0200	/* SG: gfx.int */
#define EXTIO_SG_RETRACE	0x0100
#define EXTIO_GIO_33MHZ		0x0080
#define EXTIO_EISA_BUSERR	0x0040
#define EXTIO_MC_BUSERR		0x0020
#define EXTIO_HPC3_BUSERR	0x0010
#define EXTIO_S0_STAT_1		0x0008
#define EXTIO_S0_STAT_0		0x0004
#define EXTIO_SG_STAT_1		0x0002
#define EXTIO_SG_STAT_0		0x0001
};

extern struct sgioc_regs *sgioc;
extern struct sgint_regs *sgint;

#endif
Commit	Line	Data
1da177e4 LT	1	/*
	2	* This file is subject to the terms and conditions of the GNU General Public
	3	* License. See the file "COPYING" in the main directory of this archive
	4	* for more details.
	5	*
	6	* ioc.h: Definitions for SGI I/O Controller
	7	*
	8	* Copyright (C) 1996 David S. Miller
	9	* Copyright (C) 1997, 1998, 1999, 2000 Ralf Baechle
	10	* Copyright (C) 2001, 2003 Ladislav Michl
	11	*/
	12
	13	#ifndef _SGI_IOC_H
	14	#define _SGI_IOC_H
	15
	16	#include <linux/types.h>
	17	#include <asm/sgi/pi1.h>
	18
42a3b4f2	19	/*
25985edc	20	* All registers are 8-bit wide aligned on 32-bit boundary. Bad things
1da177e4 LT	21	* happen if you try word access them. You have been warned.
	22	*/
	23
	24	struct sgioc_uart_regs {
	25	u8 _ctrl1[3];
	26	volatile u8 ctrl1;
	27	u8 _data1[3];
	28	volatile u8 data1;
	29	u8 _ctrl2[3];
	30	volatile u8 ctrl2;
	31	u8 _data2[3];
	32	volatile u8 data2;
	33	};
	34
	35	struct sgioc_keyb_regs {
	36	u8 _data[3];
	37	volatile u8 data;
	38	u8 _command[3];
	39	volatile u8 command;
	40	};
	41
	42	struct sgint_regs {
	43	u8 _istat0[3];
	44	volatile u8 istat0; /* Interrupt status zero */
	45	#define SGINT_ISTAT0_FFULL 0x01
	46	#define SGINT_ISTAT0_SCSI0 0x02
	47	#define SGINT_ISTAT0_SCSI1 0x04
	48	#define SGINT_ISTAT0_ENET 0x08
	49	#define SGINT_ISTAT0_GFXDMA 0x10
	50	#define SGINT_ISTAT0_PPORT 0x20
	51	#define SGINT_ISTAT0_HPC2 0x40
	52	#define SGINT_ISTAT0_LIO2 0x80
	53	u8 _imask0[3];
	54	volatile u8 imask0; /* Interrupt mask zero */
	55	u8 _istat1[3];
	56	volatile u8 istat1; /* Interrupt status one */
	57	#define SGINT_ISTAT1_ISDNI 0x01
	58	#define SGINT_ISTAT1_PWR 0x02
	59	#define SGINT_ISTAT1_ISDNH 0x04
	60	#define SGINT_ISTAT1_LIO3 0x08
	61	#define SGINT_ISTAT1_HPC3 0x10
	62	#define SGINT_ISTAT1_AFAIL 0x20
	63	#define SGINT_ISTAT1_VIDEO 0x40
	64	#define SGINT_ISTAT1_GIO2 0x80
	65	u8 _imask1[3];
	66	volatile u8 imask1; /* Interrupt mask one */
	67	u8 _vmeistat[3];
	68	volatile u8 vmeistat; /* VME interrupt status */
	69	u8 _cmeimask0[3];
	70	volatile u8 cmeimask0; /* VME interrupt mask zero */
	71	u8 _cmeimask1[3];
	72	volatile u8 cmeimask1; /* VME interrupt mask one */
	73	u8 _cmepol[3];
	74	volatile u8 cmepol; /* VME polarity */
	75	u8 _tclear[3];
	76	volatile u8 tclear;
	77	u8 _errstat[3];
	78	volatile u8 errstat; /* Error status reg, reserved on INT2 */
	79	u32 _unused0[2];
	80	u8 _tcnt0[3];
	81	volatile u8 tcnt0; /* counter 0 */
	82	u8 _tcnt1[3];
	83	volatile u8 tcnt1; /* counter 1 */
	84	u8 _tcnt2[3];
85	volatile u8 tcnt2; /* counter 2 */
86	u8 _tcword[3];
87	volatile u8 tcword; /* control word */
88	#define SGINT_TCWORD_BCD 0x01 /* Use BCD mode for counters */
89	#define SGINT_TCWORD_MMASK 0x0e /* Mode bitmask. */
90	#define SGINT_TCWORD_MITC 0x00 /* IRQ on terminal count (doesn't work) */
91	#define SGINT_TCWORD_MOS 0x02 /* One-shot IRQ mode. */
92	#define SGINT_TCWORD_MRGEN 0x04 /* Normal rate generation */
93	#define SGINT_TCWORD_MSWGEN 0x06 /* Square wave generator mode */
94	#define SGINT_TCWORD_MSWST 0x08 /* Software strobe */
95	#define SGINT_TCWORD_MHWST 0x0a /* Hardware strobe */
96	#define SGINT_TCWORD_CMASK 0x30 /* Command mask */
97	#define SGINT_TCWORD_CLAT 0x00 /* Latch command */
98	#define SGINT_TCWORD_CLSB 0x10 /* LSB read/write */
99	#define SGINT_TCWORD_CMSB 0x20 /* MSB read/write */
100	#define SGINT_TCWORD_CALL 0x30 /* Full counter read/write */
101	#define SGINT_TCWORD_CNT0 0x00 /* Select counter zero */
102	#define SGINT_TCWORD_CNT1 0x40 /* Select counter one */
103	#define SGINT_TCWORD_CNT2 0x80 /* Select counter two */
104	#define SGINT_TCWORD_CRBCK 0xc0 /* Readback command */
105	};
106
107	/*
108	* The timer is the good old 8254. Unlike in PCs it's clocked at exactly 1MHz
109	*/
110	#define SGINT_TIMER_CLOCK 1000000
111
112	/*
113	* This is the constant we're using for calibrating the counter.
114	*/
115	#define SGINT_TCSAMP_COUNTER ((SGINT_TIMER_CLOCK / HZ) + 255)
116
117	/* We need software copies of these because they are write only. */
118	extern u8 sgi_ioc_reset, sgi_ioc_write;
119
120	struct sgioc_regs {
121	struct pi1_regs pport;
122	u32 _unused0[2];
123	struct sgioc_uart_regs uart;
124	struct sgioc_keyb_regs kbdmouse;
125	u8 _gcsel[3];
126	volatile u8 gcsel;
127	u8 _genctrl[3];
128	volatile u8 genctrl;
129	u8 _panel[3];
130	volatile u8 panel;
131	#define SGIOC_PANEL_POWERON 0x01
132	#define SGIOC_PANEL_POWERINTR 0x02
133	#define SGIOC_PANEL_VOLDNINTR 0x10
134	#define SGIOC_PANEL_VOLDNHOLD 0x20
135	#define SGIOC_PANEL_VOLUPINTR 0x40
136	#define SGIOC_PANEL_VOLUPHOLD 0x80
137	u32 _unused1;
138	u8 _sysid[3];
139	volatile u8 sysid;
140	#define SGIOC_SYSID_FULLHOUSE 0x01
68efdb81 TB	141	#define SGIOC_SYSID_BOARDREV(x) (((x) & 0x1e) >> 1)
68efdb81 TB	142	#define SGIOC_SYSID_CHIPREV(x) (((x) & 0xe0) >> 5)
1da177e4 LT	143	u32 _unused2;
	144	u8 _read[3];
	145	volatile u8 read;
	146	u32 _unused3;
	147	u8 _dmasel[3];
	148	volatile u8 dmasel;
	149	#define SGIOC_DMASEL_SCLK10MHZ 0x00 /* use 10MHZ serial clock */
	150	#define SGIOC_DMASEL_ISDNB 0x01 /* enable isdn B */
	151	#define SGIOC_DMASEL_ISDNA 0x02 /* enable isdn A */
	152	#define SGIOC_DMASEL_PPORT 0x04 /* use parallel DMA */
	153	#define SGIOC_DMASEL_SCLK667MHZ 0x10 /* use 6.67MHZ serial clock */
	154	#define SGIOC_DMASEL_SCLKEXT 0x20 /* use external serial clock */
	155	u32 _unused4;
	156	u8 _reset[3];
	157	volatile u8 reset;
	158	#define SGIOC_RESET_PPORT 0x01 /* 0=parport reset, 1=nornal */
	159	#define SGIOC_RESET_KBDMOUSE 0x02 /* 0=kbdmouse reset, 1=normal */
	160	#define SGIOC_RESET_EISA 0x04 /* 0=eisa reset, 1=normal */
	161	#define SGIOC_RESET_ISDN 0x08 /* 0=isdn reset, 1=normal */
	162	#define SGIOC_RESET_LC0OFF 0x10 /* guiness: turn led off (red, else green) */
	163	#define SGIOC_RESET_LC1OFF 0x20 /* guiness: turn led off (green, else amber) */
	164	u32 _unused5;
	165	u8 _write[3];
	166	volatile u8 write;
af901ca1	167	#define SGIOC_WRITE_NTHRESH 0x01 /* use 4.5db threshold */
1da177e4 LT	168	#define SGIOC_WRITE_TPSPEED 0x02 /* use 100ohm TP speed */
	169	#define SGIOC_WRITE_EPSEL 0x04 /* force cable mode: 1=AUI 0=TP */
	170	#define SGIOC_WRITE_EASEL 0x08 /* 1=autoselect 0=manual cable selection */
	171	#define SGIOC_WRITE_U1AMODE 0x10 /* 1=PC 0=MAC UART mode */
	172	#define SGIOC_WRITE_U0AMODE 0x20 /* 1=PC 0=MAC UART mode */
	173	#define SGIOC_WRITE_MLO 0x40 /* 1=4.75V 0=+5V */
	174	#define SGIOC_WRITE_MHI 0x80 /* 1=5.25V 0=+5V */
	175	u32 _unused6;
	176	struct sgint_regs int3;
	177	u32 _unused7[16];
	178	volatile u32 extio; /* FullHouse only */
	179	#define EXTIO_S0_IRQ_3 0x8000 /* S0: vid.vsync */
	180	#define EXTIO_S0_IRQ_2 0x4000 /* S0: gfx.fifofull */
	181	#define EXTIO_S0_IRQ_1 0x2000 /* S0: gfx.int */
	182	#define EXTIO_S0_RETRACE 0x1000
	183	#define EXTIO_SG_IRQ_3 0x0800 /* SG: vid.vsync */
	184	#define EXTIO_SG_IRQ_2 0x0400 /* SG: gfx.fifofull */
	185	#define EXTIO_SG_IRQ_1 0x0200 /* SG: gfx.int */
	186	#define EXTIO_SG_RETRACE 0x0100
	187	#define EXTIO_GIO_33MHZ 0x0080
	188	#define EXTIO_EISA_BUSERR 0x0040
	189	#define EXTIO_MC_BUSERR 0x0020
	190	#define EXTIO_HPC3_BUSERR 0x0010
	191	#define EXTIO_S0_STAT_1 0x0008
	192	#define EXTIO_S0_STAT_0 0x0004
	193	#define EXTIO_SG_STAT_1 0x0002
	194	#define EXTIO_SG_STAT_0 0x0001
	195	};
	196
	197	extern struct sgioc_regs *sgioc;
	198	extern struct sgint_regs *sgint;
	199
	200	#endif