cregit-Linux how code gets into the kernel

Release 4.14 arch/mips/include/asm/sn/ioc3.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (C) 1999, 2000 Ralf Baechle
 * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
 */
#ifndef _IOC3_H

#define _IOC3_H

#include <linux/types.h>

/* SUPERIO uart register map */

typedef volatile struct ioc3_uartregs {
	union {
		
volatile u8	rbr;	/* read only, DLAB == 0 */
		
volatile u8	thr;	/* write only, DLAB == 0 */
		
volatile u8	dll;	/* DLAB == 1 */
	
} u1;
	union {
		
volatile u8	ier;	/* DLAB == 0 */
		
volatile u8	dlm;	/* DLAB == 1 */
	
} u2;
	union {
		
volatile u8	iir;	/* read only */
		
volatile u8	fcr;	/* write only */
	
} u3;
	
volatile u8	    iu_lcr;
	
volatile u8	    iu_mcr;
	
volatile u8	    iu_lsr;
	
volatile u8	    iu_msr;
	
volatile u8	    iu_scr;

} ioc3_uregs_t;


#define iu_rbr u1.rbr

#define iu_thr u1.thr

#define iu_dll u1.dll

#define iu_ier u2.ier

#define iu_dlm u2.dlm

#define iu_iir u3.iir

#define iu_fcr u3.fcr


struct ioc3_sioregs {
	
volatile u8		fill[0x141];	/* starts at 0x141 */

	
volatile u8		uartc;
	
volatile u8		kbdcg;

	
volatile u8		fill0[0x150 - 0x142 - 1];

	
volatile u8		pp_data;
	
volatile u8		pp_dsr;
	
volatile u8		pp_dcr;

	
volatile u8		fill1[0x158 - 0x152 - 1];

	
volatile u8		pp_fifa;
	
volatile u8		pp_cfgb;
	
volatile u8		pp_ecr;

	
volatile u8		fill2[0x168 - 0x15a - 1];

	
volatile u8		rtcad;
	
volatile u8		rtcdat;

	
volatile u8		fill3[0x170 - 0x169 - 1];

	
struct ioc3_uartregs	uartb;	/* 0x20170  */
	
struct ioc3_uartregs	uarta;	/* 0x20178  */
};

/* Register layout of IOC3 in configuration space.  */

struct ioc3 {
	
volatile u32	pad0[7];	/* 0x00000  */
	
volatile u32	sio_ir;		/* 0x0001c  */
	
volatile u32	sio_ies;	/* 0x00020  */
	
volatile u32	sio_iec;	/* 0x00024  */
	
volatile u32	sio_cr;		/* 0x00028  */
	
volatile u32	int_out;	/* 0x0002c  */
	
volatile u32	mcr;		/* 0x00030  */

	/* General Purpose I/O registers  */
	
volatile u32	gpcr_s;		/* 0x00034  */
	
volatile u32	gpcr_c;		/* 0x00038  */
	
volatile u32	gpdr;		/* 0x0003c  */
	
volatile u32	gppr_0;		/* 0x00040  */
	
volatile u32	gppr_1;		/* 0x00044  */
	
volatile u32	gppr_2;		/* 0x00048  */
	
volatile u32	gppr_3;		/* 0x0004c  */
	
volatile u32	gppr_4;		/* 0x00050  */
	
volatile u32	gppr_5;		/* 0x00054  */
	
volatile u32	gppr_6;		/* 0x00058  */
	
volatile u32	gppr_7;		/* 0x0005c  */
	
volatile u32	gppr_8;		/* 0x00060  */
	
volatile u32	gppr_9;		/* 0x00064  */
	
volatile u32	gppr_10;	/* 0x00068  */
	
volatile u32	gppr_11;	/* 0x0006c  */
	
volatile u32	gppr_12;	/* 0x00070  */
	
volatile u32	gppr_13;	/* 0x00074  */
	
volatile u32	gppr_14;	/* 0x00078  */
	
volatile u32	gppr_15;	/* 0x0007c  */

	/* Parallel Port Registers  */
	
volatile u32	ppbr_h_a;	/* 0x00080  */
	
volatile u32	ppbr_l_a;	/* 0x00084  */
	
volatile u32	ppcr_a;		/* 0x00088  */
	
volatile u32	ppcr;		/* 0x0008c  */
	
volatile u32	ppbr_h_b;	/* 0x00090  */
	
volatile u32	ppbr_l_b;	/* 0x00094  */
	
volatile u32	ppcr_b;		/* 0x00098  */

	/* Keyboard and Mouse Registers  */
	
volatile u32	km_csr;		/* 0x0009c  */
	
volatile u32	k_rd;		/* 0x000a0  */
	
volatile u32	m_rd;		/* 0x000a4  */
	
volatile u32	k_wd;		/* 0x000a8  */
	
volatile u32	m_wd;		/* 0x000ac  */

	/* Serial Port Registers  */
	
volatile u32	sbbr_h;		/* 0x000b0  */
	
volatile u32	sbbr_l;		/* 0x000b4  */
	
volatile u32	sscr_a;		/* 0x000b8  */
	
volatile u32	stpir_a;	/* 0x000bc  */
	
volatile u32	stcir_a;	/* 0x000c0  */
	
volatile u32	srpir_a;	/* 0x000c4  */
	
volatile u32	srcir_a;	/* 0x000c8  */
	
volatile u32	srtr_a;		/* 0x000cc  */
	
volatile u32	shadow_a;	/* 0x000d0  */
	
volatile u32	sscr_b;		/* 0x000d4  */
	
volatile u32	stpir_b;	/* 0x000d8  */
	
volatile u32	stcir_b;	/* 0x000dc  */
	
volatile u32	srpir_b;	/* 0x000e0  */
	
volatile u32	srcir_b;	/* 0x000e4  */
	
volatile u32	srtr_b;		/* 0x000e8  */
	
volatile u32	shadow_b;	/* 0x000ec  */

	/* Ethernet Registers  */
	
volatile u32	emcr;		/* 0x000f0  */
	
volatile u32	eisr;		/* 0x000f4  */
	
volatile u32	eier;		/* 0x000f8  */
	
volatile u32	ercsr;		/* 0x000fc  */
	
volatile u32	erbr_h;		/* 0x00100  */
	
volatile u32	erbr_l;		/* 0x00104  */
	
volatile u32	erbar;		/* 0x00108  */
	
volatile u32	ercir;		/* 0x0010c  */
	
volatile u32	erpir;		/* 0x00110  */
	
volatile u32	ertr;		/* 0x00114  */
	
volatile u32	etcsr;		/* 0x00118  */
	
volatile u32	ersr;		/* 0x0011c  */
	
volatile u32	etcdc;		/* 0x00120  */
	
volatile u32	ebir;		/* 0x00124  */
	
volatile u32	etbr_h;		/* 0x00128  */
	
volatile u32	etbr_l;		/* 0x0012c  */
	
volatile u32	etcir;		/* 0x00130  */
	
volatile u32	etpir;		/* 0x00134  */
	
volatile u32	emar_h;		/* 0x00138  */
	
volatile u32	emar_l;		/* 0x0013c  */
	
volatile u32	ehar_h;		/* 0x00140  */
	
volatile u32	ehar_l;		/* 0x00144  */
	
volatile u32	micr;		/* 0x00148  */
	
volatile u32	midr_r;		/* 0x0014c  */
	
volatile u32	midr_w;		/* 0x00150  */
	
volatile u32	pad1[(0x20000 - 0x00154) / 4];

	/* SuperIO Registers  XXX */
	
struct ioc3_sioregs	sregs;	/* 0x20000 */
	
volatile u32	pad2[(0x40000 - 0x20180) / 4];

	/* SSRAM Diagnostic Access */
	
volatile u32	ssram[(0x80000 - 0x40000) / 4];

	/* Bytebus device offsets
           0x80000 -   Access to the generic devices selected with   DEV0
           0x9FFFF     bytebus DEV_SEL_0
           0xA0000 -   Access to the generic devices selected with   DEV1
           0xBFFFF     bytebus DEV_SEL_1
           0xC0000 -   Access to the generic devices selected with   DEV2
           0xDFFFF     bytebus DEV_SEL_2
           0xE0000 -   Access to the generic devices selected with   DEV3
           0xFFFFF     bytebus DEV_SEL_3  */
};

/*
 * Ethernet RX Buffer
 */

struct ioc3_erxbuf {
	
u32	w0;			/* first word (valid,bcnt,cksum) */
	
u32	err;			/* second word various errors */
	/* next comes n bytes of padding */
	/* then the received ethernet frame itself */
};


#define ERXBUF_IPCKSUM_MASK	0x0000ffff

#define ERXBUF_BYTECNT_MASK	0x07ff0000

#define ERXBUF_BYTECNT_SHIFT	16

#define ERXBUF_V		0x80000000


#define ERXBUF_CRCERR		0x00000001	
/* aka RSV15 */

#define ERXBUF_FRAMERR		0x00000002	
/* aka RSV14 */

#define ERXBUF_CODERR		0x00000004	
/* aka RSV13 */

#define ERXBUF_INVPREAMB	0x00000008	
/* aka RSV18 */

#define ERXBUF_LOLEN		0x00007000	
/* aka RSV2_0 */

#define ERXBUF_HILEN		0x03ff0000	
/* aka RSV12_3 */

#define ERXBUF_MULTICAST	0x04000000	
/* aka RSV16 */

#define ERXBUF_BROADCAST	0x08000000	
/* aka RSV17 */

#define ERXBUF_LONGEVENT	0x10000000	
/* aka RSV19 */

#define ERXBUF_BADPKT		0x20000000	
/* aka RSV20 */

#define ERXBUF_GOODPKT		0x40000000	
/* aka RSV21 */

#define ERXBUF_CARRIER		0x80000000	
/* aka RSV22 */

/*
 * Ethernet TX Descriptor
 */

#define ETXD_DATALEN	104

struct ioc3_etxd {
	
u32	cmd;				/* command field */
	
u32	bufcnt;				/* buffer counts field */
	
u64	p1;				/* buffer pointer 1 */
	
u64	p2;				/* buffer pointer 2 */
	
u8	data[ETXD_DATALEN];		/* opt. tx data */
};


#define ETXD_BYTECNT_MASK	0x000007ff	
/* total byte count */

#define ETXD_INTWHENDONE	0x00001000	
/* intr when done */

#define ETXD_D0V		0x00010000	
/* data 0 valid */

#define ETXD_B1V		0x00020000	
/* buf 1 valid */

#define ETXD_B2V		0x00040000	
/* buf 2 valid */

#define ETXD_DOCHECKSUM		0x00080000	
/* insert ip cksum */

#define ETXD_CHKOFF_MASK	0x07f00000	
/* cksum byte offset */

#define ETXD_CHKOFF_SHIFT	20


#define ETXD_D0CNT_MASK		0x0000007f

#define ETXD_B1CNT_MASK		0x0007ff00

#define ETXD_B1CNT_SHIFT	8

#define ETXD_B2CNT_MASK		0x7ff00000

#define ETXD_B2CNT_SHIFT	20

/*
 * Bytebus device space
 */

#define IOC3_BYTEBUS_DEV0	0x80000L

#define IOC3_BYTEBUS_DEV1	0xa0000L

#define IOC3_BYTEBUS_DEV2	0xc0000L

#define IOC3_BYTEBUS_DEV3	0xe0000L

/* ------------------------------------------------------------------------- */

/* Superio Registers (PIO Access) */

#define IOC3_SIO_BASE		0x20000

#define IOC3_SIO_UARTC		(IOC3_SIO_BASE+0x141)	
/* UART Config */

#define IOC3_SIO_KBDCG		(IOC3_SIO_BASE+0x142)	
/* KBD Config */

#define IOC3_SIO_PP_BASE	(IOC3_SIO_BASE+PP_BASE)		
/* Parallel Port */

#define IOC3_SIO_RTC_BASE	(IOC3_SIO_BASE+0x168)	
/* Real Time Clock */

#define IOC3_SIO_UB_BASE	(IOC3_SIO_BASE+UARTB_BASE)	
/* UART B */

#define IOC3_SIO_UA_BASE	(IOC3_SIO_BASE+UARTA_BASE)	
/* UART A */

/* SSRAM Diagnostic Access */

#define IOC3_SSRAM	IOC3_RAM_OFF	
/* base of SSRAM diagnostic access */

#define IOC3_SSRAM_LEN	0x40000 
/* 256kb (address space size, may not be fully populated) */

#define IOC3_SSRAM_DM	0x0000ffff	
/* data mask */

#define IOC3_SSRAM_PM	0x00010000	
/* parity mask */

/* bitmasks for PCI_SCR */

#define PCI_SCR_PAR_RESP_EN	0x00000040	
/* enb PCI parity checking */

#define PCI_SCR_SERR_EN		0x00000100	
/* enable the SERR# driver */

#define PCI_SCR_DROP_MODE_EN	0x00008000	
/* drop pios on parity err */

#define PCI_SCR_RX_SERR		(0x1 << 16)

#define PCI_SCR_DROP_MODE	(0x1 << 17)

#define PCI_SCR_SIG_PAR_ERR	(0x1 << 24)

#define PCI_SCR_SIG_TAR_ABRT	(0x1 << 27)

#define PCI_SCR_RX_TAR_ABRT	(0x1 << 28)

#define PCI_SCR_SIG_MST_ABRT	(0x1 << 29)

#define PCI_SCR_SIG_SERR	(0x1 << 30)

#define PCI_SCR_PAR_ERR		(0x1 << 31)

/* bitmasks for IOC3_KM_CSR */

#define KM_CSR_K_WRT_PEND 0x00000001	
/* kbd port xmitting or resetting */

#define KM_CSR_M_WRT_PEND 0x00000002	
/* mouse port xmitting or resetting */

#define KM_CSR_K_LCB	  0x00000004	
/* Line Cntrl Bit for last KBD write */

#define KM_CSR_M_LCB	  0x00000008	
/* same for mouse */

#define KM_CSR_K_DATA	  0x00000010	
/* state of kbd data line */

#define KM_CSR_K_CLK	  0x00000020	
/* state of kbd clock line */

#define KM_CSR_K_PULL_DATA 0x00000040	
/* pull kbd data line low */

#define KM_CSR_K_PULL_CLK 0x00000080	
/* pull kbd clock line low */

#define KM_CSR_M_DATA	  0x00000100	
/* state of ms data line */

#define KM_CSR_M_CLK	  0x00000200	
/* state of ms clock line */

#define KM_CSR_M_PULL_DATA 0x00000400	
/* pull ms data line low */

#define KM_CSR_M_PULL_CLK 0x00000800	
/* pull ms clock line low */

#define KM_CSR_EMM_MODE	  0x00001000	
/* emulation mode */

#define KM_CSR_SIM_MODE	  0x00002000	
/* clock X8 */

#define KM_CSR_K_SM_IDLE  0x00004000	
/* Keyboard is idle */

#define KM_CSR_M_SM_IDLE  0x00008000	
/* Mouse is idle */

#define KM_CSR_K_TO	  0x00010000	
/* Keyboard trying to send/receive */

#define KM_CSR_M_TO	  0x00020000	
/* Mouse trying to send/receive */

#define KM_CSR_K_TO_EN	  0x00040000	
/* KM_CSR_K_TO + KM_CSR_K_TO_EN = cause
                                           SIO_IR to assert */

#define KM_CSR_M_TO_EN	  0x00080000	
/* KM_CSR_M_TO + KM_CSR_M_TO_EN = cause
                                           SIO_IR to assert */

#define KM_CSR_K_CLAMP_ONE	0x00100000	
/* Pull K_CLK low after rec. one char */

#define KM_CSR_M_CLAMP_ONE	0x00200000	
/* Pull M_CLK low after rec. one char */

#define KM_CSR_K_CLAMP_THREE	0x00400000	
/* Pull K_CLK low after rec. three chars */

#define KM_CSR_M_CLAMP_THREE	0x00800000	
/* Pull M_CLK low after rec. three char */

/* bitmasks for IOC3_K_RD and IOC3_M_RD */

#define KM_RD_DATA_2	0x000000ff	
/* 3rd char recvd since last read */

#define KM_RD_DATA_2_SHIFT 0

#define KM_RD_DATA_1	0x0000ff00	
/* 2nd char recvd since last read */

#define KM_RD_DATA_1_SHIFT 8

#define KM_RD_DATA_0	0x00ff0000	
/* 1st char recvd since last read */

#define KM_RD_DATA_0_SHIFT 16

#define KM_RD_FRAME_ERR_2 0x01000000	
/*  framing or parity error in byte 2 */

#define KM_RD_FRAME_ERR_1 0x02000000	
/* same for byte 1 */

#define KM_RD_FRAME_ERR_0 0x04000000	
/* same for byte 0 */


#define KM_RD_KBD_MSE	0x08000000	
/* 0 if from kbd, 1 if from mouse */

#define KM_RD_OFLO	0x10000000	
/* 4th char recvd before this read */

#define KM_RD_VALID_2	0x20000000	
/* DATA_2 valid */

#define KM_RD_VALID_1	0x40000000	
/* DATA_1 valid */

#define KM_RD_VALID_0	0x80000000	
/* DATA_0 valid */

#define KM_RD_VALID_ALL (KM_RD_VALID_0|KM_RD_VALID_1|KM_RD_VALID_2)

/* bitmasks for IOC3_K_WD & IOC3_M_WD */

#define KM_WD_WRT_DATA	0x000000ff	
/* write to keyboard/mouse port */

#define KM_WD_WRT_DATA_SHIFT 0

/* bitmasks for serial RX status byte */

#define RXSB_OVERRUN	0x01	
/* char(s) lost */

#define RXSB_PAR_ERR	0x02	
/* parity error */

#define RXSB_FRAME_ERR	0x04	
/* framing error */

#define RXSB_BREAK	0x08	
/* break character */

#define RXSB_CTS	0x10	
/* state of CTS */

#define RXSB_DCD	0x20	
/* state of DCD */

#define RXSB_MODEM_VALID 0x40	
/* DCD, CTS and OVERRUN are valid */

#define RXSB_DATA_VALID 0x80	
/* data byte, FRAME_ERR PAR_ERR & BREAK valid */

/* bitmasks for serial TX control byte */

#define TXCB_INT_WHEN_DONE 0x20 
/* interrupt after this byte is sent */

#define TXCB_INVALID	0x00	
/* byte is invalid */

#define TXCB_VALID	0x40	
/* byte is valid */

#define TXCB_MCR	0x80	
/* data<7:0> to modem control register */

#define TXCB_DELAY	0xc0	
/* delay data<7:0> mSec */

/* bitmasks for IOC3_SBBR_L */

#define SBBR_L_SIZE	0x00000001	
/* 0 == 1KB rings, 1 == 4KB rings */

#define SBBR_L_BASE	0xfffff000	
/* lower serial ring base addr */

/* bitmasks for IOC3_SSCR_<A:B> */

#define SSCR_RX_THRESHOLD 0x000001ff	
/* hiwater mark */

#define SSCR_TX_TIMER_BUSY 0x00010000	
/* TX timer in progress */

#define SSCR_HFC_EN	0x00020000	
/* hardware flow control enabled */

#define SSCR_RX_RING_DCD 0x00040000	
/* post RX record on delta-DCD */

#define SSCR_RX_RING_CTS 0x00080000	
/* post RX record on delta-CTS */

#define SSCR_HIGH_SPD	0x00100000	
/* 4X speed */

#define SSCR_DIAG	0x00200000	
/* bypass clock divider for sim */

#define SSCR_RX_DRAIN	0x08000000	
/* drain RX buffer to memory */

#define SSCR_DMA_EN	0x10000000	
/* enable ring buffer DMA */

#define SSCR_DMA_PAUSE	0x20000000	
/* pause DMA */

#define SSCR_PAUSE_STATE 0x40000000	
/* sets when PAUSE takes effect */

#define SSCR_RESET	0x80000000	
/* reset DMA channels */

/* all producer/consumer pointers are the same bitfield */

#define PROD_CONS_PTR_4K 0x00000ff8	
/* for 4K buffers */

#define PROD_CONS_PTR_1K 0x000003f8	
/* for 1K buffers */

#define PROD_CONS_PTR_OFF 3

/* bitmasks for IOC3_SRCIR_<A:B> */

#define SRCIR_ARM	0x80000000	
/* arm RX timer */

/* bitmasks for IOC3_SRPIR_<A:B> */

#define SRPIR_BYTE_CNT	0x07000000	
/* bytes in packer */

#define SRPIR_BYTE_CNT_SHIFT 24

/* bitmasks for IOC3_STCIR_<A:B> */

#define STCIR_BYTE_CNT	0x0f000000	
/* bytes in unpacker */

#define STCIR_BYTE_CNT_SHIFT 24

/* bitmasks for IOC3_SHADOW_<A:B> */

#define SHADOW_DR	0x00000001	
/* data ready */

#define SHADOW_OE	0x00000002	
/* overrun error */

#define SHADOW_PE	0x00000004	
/* parity error */

#define SHADOW_FE	0x00000008	
/* framing error */

#define SHADOW_BI	0x00000010	
/* break interrupt */

#define SHADOW_THRE	0x00000020	
/* transmit holding register empty */

#define SHADOW_TEMT	0x00000040	
/* transmit shift register empty */

#define SHADOW_RFCE	0x00000080	
/* char in RX fifo has an error */

#define SHADOW_DCTS	0x00010000	
/* delta clear to send */

#define SHADOW_DDCD	0x00080000	
/* delta data carrier detect */

#define SHADOW_CTS	0x00100000	
/* clear to send */

#define SHADOW_DCD	0x00800000	
/* data carrier detect */

#define SHADOW_DTR	0x01000000	
/* data terminal ready */

#define SHADOW_RTS	0x02000000	
/* request to send */

#define SHADOW_OUT1	0x04000000	
/* 16550 OUT1 bit */

#define SHADOW_OUT2	0x08000000	
/* 16550 OUT2 bit */

#define SHADOW_LOOP	0x10000000	
/* loopback enabled */

/* bitmasks for IOC3_SRTR_<A:B> */

#define SRTR_CNT	0x00000fff	
/* reload value for RX timer */

#define SRTR_CNT_VAL	0x0fff0000	
/* current value of RX timer */

#define SRTR_CNT_VAL_SHIFT 16

#define SRTR_HZ		16000	
/* SRTR clock frequency */

/* bitmasks for IOC3_SIO_IR, IOC3_SIO_IEC and IOC3_SIO_IES  */

#define SIO_IR_SA_TX_MT		0x00000001	
/* Serial port A TX empty */

#define SIO_IR_SA_RX_FULL	0x00000002	
/* port A RX buf full */

#define SIO_IR_SA_RX_HIGH	0x00000004	
/* port A RX hiwat */

#define SIO_IR_SA_RX_TIMER	0x00000008	
/* port A RX timeout */

#define SIO_IR_SA_DELTA_DCD	0x00000010	
/* port A delta DCD */

#define SIO_IR_SA_DELTA_CTS	0x00000020	
/* port A delta CTS */

#define SIO_IR_SA_INT		0x00000040	
/* port A pass-thru intr */

#define SIO_IR_SA_TX_EXPLICIT	0x00000080	
/* port A explicit TX thru */

#define SIO_IR_SA_MEMERR	0x00000100	
/* port A PCI error */

#define SIO_IR_SB_TX_MT		0x00000200	
/* */

#define SIO_IR_SB_RX_FULL	0x00000400	
/* */

#define SIO_IR_SB_RX_HIGH	0x00000800	
/* */

#define SIO_IR_SB_RX_TIMER	0x00001000	
/* */

#define SIO_IR_SB_DELTA_DCD	0x00002000	
/* */

#define SIO_IR_SB_DELTA_CTS	0x00004000	
/* */

#define SIO_IR_SB_INT		0x00008000	
/* */

#define SIO_IR_SB_TX_EXPLICIT	0x00010000	
/* */

#define SIO_IR_SB_MEMERR	0x00020000	
/* */

#define SIO_IR_PP_INT		0x00040000	
/* P port pass-thru intr */

#define SIO_IR_PP_INTA		0x00080000	
/* PP context A thru */

#define SIO_IR_PP_INTB		0x00100000	
/* PP context B thru */

#define SIO_IR_PP_MEMERR	0x00200000	
/* PP PCI error */

#define SIO_IR_KBD_INT		0x00400000	
/* kbd/mouse intr */

#define SIO_IR_RT_INT		0x08000000	
/* RT output pulse */

#define SIO_IR_GEN_INT1		0x10000000	
/* RT input pulse */

#define SIO_IR_GEN_INT_SHIFT	28

/* per device interrupt masks */

#define SIO_IR_SA		(SIO_IR_SA_TX_MT | SIO_IR_SA_RX_FULL | \
                                 SIO_IR_SA_RX_HIGH | SIO_IR_SA_RX_TIMER | \
                                 SIO_IR_SA_DELTA_DCD | SIO_IR_SA_DELTA_CTS | \
                                 SIO_IR_SA_INT | SIO_IR_SA_TX_EXPLICIT | \
                                 SIO_IR_SA_MEMERR)

#define SIO_IR_SB		(SIO_IR_SB_TX_MT | SIO_IR_SB_RX_FULL | \
                                 SIO_IR_SB_RX_HIGH | SIO_IR_SB_RX_TIMER | \
                                 SIO_IR_SB_DELTA_DCD | SIO_IR_SB_DELTA_CTS | \
                                 SIO_IR_SB_INT | SIO_IR_SB_TX_EXPLICIT | \
                                 SIO_IR_SB_MEMERR)

#define SIO_IR_PP		(SIO_IR_PP_INT | SIO_IR_PP_INTA | \
                                 SIO_IR_PP_INTB | SIO_IR_PP_MEMERR)

#define SIO_IR_RT		(SIO_IR_RT_INT | SIO_IR_GEN_INT1)

/* macro to load pending interrupts */

#define IOC3_PENDING_INTRS(mem) (PCI_INW(&((mem)->sio_ir)) & \
                                 PCI_INW(&((mem)->sio_ies_ro)))

/* bitmasks for SIO_CR */

#define SIO_CR_SIO_RESET	0x00000001	
/* reset the SIO */

#define SIO_CR_SER_A_BASE	0x000000fe	
/* DMA poll addr port A */

#define SIO_CR_SER_A_BASE_SHIFT 1

#define SIO_CR_SER_B_BASE	0x00007f00	
/* DMA poll addr port B */

#define SIO_CR_SER_B_BASE_SHIFT 8

#define SIO_SR_CMD_PULSE	0x00078000	
/* byte bus strobe length */

#define SIO_CR_CMD_PULSE_SHIFT	15

#define SIO_CR_ARB_DIAG		0x00380000	
/* cur !enet PCI requet (ro) */

#define SIO_CR_ARB_DIAG_TXA	0x00000000

#define SIO_CR_ARB_DIAG_RXA	0x00080000

#define SIO_CR_ARB_DIAG_TXB	0x00100000

#define SIO_CR_ARB_DIAG_RXB	0x00180000

#define SIO_CR_ARB_DIAG_PP	0x00200000

#define SIO_CR_ARB_DIAG_IDLE	0x00400000	
/* 0 -> active request (ro) */

/* bitmasks for INT_OUT */

#define INT_OUT_COUNT	0x0000ffff	
/* pulse interval timer */

#define INT_OUT_MODE	0x00070000	
/* mode mask */

#define INT_OUT_MODE_0	0x00000000	
/* set output to 0 */

#define INT_OUT_MODE_1	0x00040000	
/* set output to 1 */

#define INT_OUT_MODE_1PULSE 0x00050000	
/* send 1 pulse */

#define INT_OUT_MODE_PULSES 0x00060000	
/* send 1 pulse every interval */

#define INT_OUT_MODE_SQW 0x00070000	
/* toggle output every interval */

#define INT_OUT_DIAG	0x40000000	
/* diag mode */

#define INT_OUT_INT_OUT 0x80000000	
/* current state of INT_OUT */

/* time constants for INT_OUT */

#define INT_OUT_NS_PER_TICK (30 * 260)	
/* 30 ns PCI clock, divisor=260 */

#define INT_OUT_TICKS_PER_PULSE 3	
/* outgoing pulse lasts 3 ticks */

#define INT_OUT_US_TO_COUNT(x)		/* convert uS to a count value */ \
	(((x) * 10 + INT_OUT_NS_PER_TICK / 200) *       \
         100 / INT_OUT_NS_PER_TICK - 1)

#define INT_OUT_COUNT_TO_US(x)		/* convert count value to uS */ \
	(((x) + 1) * INT_OUT_NS_PER_TICK / 1000)

#define INT_OUT_MIN_TICKS 3	
/* min period is width of pulse in "ticks" */

#define INT_OUT_MAX_TICKS INT_OUT_COUNT		
/* largest possible count */

/* bitmasks for GPCR */

#define GPCR_DIR	0x000000ff	
/* tristate pin input or output */

#define GPCR_DIR_PIN(x) (1<<(x))	
/* access one of the DIR bits */

#define GPCR_EDGE	0x000f0000	
/* extint edge or level sensitive */

#define GPCR_EDGE_PIN(x) (1<<((x)+15))	
/* access one of the EDGE bits */

/* values for GPCR */

#define GPCR_INT_OUT_EN 0x00100000	
/* enable INT_OUT to pin 0 */

#define GPCR_MLAN_EN	0x00200000	
/* enable MCR to pin 8 */

#define GPCR_DIR_SERA_XCVR 0x00000080	
/* Port A Transceiver select enable */

#define GPCR_DIR_SERB_XCVR 0x00000040	
/* Port B Transceiver select enable */

#define GPCR_DIR_PHY_RST   0x00000020	
/* ethernet PHY reset enable */

/* defs for some of the generic I/O pins */

#define GPCR_PHY_RESET		0x20	
/* pin is output to PHY reset */

#define GPCR_UARTB_MODESEL	0x40	
/* pin is output to port B mode sel */

#define GPCR_UARTA_MODESEL	0x80	
/* pin is output to port A mode sel */


#define GPPR_PHY_RESET_PIN	5	
/* GIO pin controlling phy reset */

#define GPPR_UARTB_MODESEL_PIN	6	
/* GIO pin controlling uart b mode select */

#define GPPR_UARTA_MODESEL_PIN	7	
/* GIO pin controlling uart a mode select */


#define EMCR_DUPLEX		0x00000001

#define EMCR_PROMISC		0x00000002

#define EMCR_PADEN		0x00000004

#define EMCR_RXOFF_MASK		0x000001f8

#define EMCR_RXOFF_SHIFT	3

#define EMCR_RAMPAR		0x00000200

#define EMCR_BADPAR		0x00000800

#define EMCR_BUFSIZ		0x00001000

#define EMCR_TXDMAEN		0x00002000

#define EMCR_TXEN		0x00004000

#define EMCR_RXDMAEN		0x00008000

#define EMCR_RXEN		0x00010000

#define EMCR_LOOPBACK		0x00020000

#define EMCR_ARB_DIAG		0x001c0000

#define EMCR_ARB_DIAG_IDLE	0x00200000

#define EMCR_RST		0x80000000


#define EISR_RXTIMERINT		0x00000001

#define EISR_RXTHRESHINT	0x00000002

#define EISR_RXOFLO		0x00000004

#define EISR_RXBUFOFLO		0x00000008

#define EISR_RXMEMERR		0x00000010

#define EISR_RXPARERR		0x00000020

#define EISR_TXEMPTY		0x00010000

#define EISR_TXRTRY		0x00020000

#define EISR_TXEXDEF		0x00040000

#define EISR_TXLCOL		0x00080000

#define EISR_TXGIANT		0x00100000

#define EISR_TXBUFUFLO		0x00200000

#define EISR_TXEXPLICIT		0x00400000

#define EISR_TXCOLLWRAP		0x00800000

#define EISR_TXDEFERWRAP	0x01000000

#define EISR_TXMEMERR		0x02000000

#define EISR_TXPARERR		0x04000000


#define ERCSR_THRESH_MASK	0x000001ff	
/* enet RX threshold */

#define ERCSR_RX_TMR		0x40000000	
/* simulation only */

#define ERCSR_DIAG_OFLO		0x80000000	
/* simulation only */


#define ERBR_ALIGNMENT		4096

#define ERBR_L_RXRINGBASE_MASK	0xfffff000


#define ERBAR_BARRIER_BIT	0x0100

#define ERBAR_RXBARR_MASK	0xffff0000

#define ERBAR_RXBARR_SHIFT	16


#define ERCIR_RXCONSUME_MASK	0x00000fff


#define ERPIR_RXPRODUCE_MASK	0x00000fff

#define ERPIR_ARM		0x80000000


#define ERTR_CNT_MASK		0x000007ff


#define ETCSR_IPGT_MASK		0x0000007f

#define ETCSR_IPGR1_MASK	0x00007f00

#define ETCSR_IPGR1_SHIFT	8

#define ETCSR_IPGR2_MASK	0x007f0000

#define ETCSR_IPGR2_SHIFT	16

#define ETCSR_NOTXCLK		0x80000000


#define ETCDC_COLLCNT_MASK	0x0000ffff

#define ETCDC_DEFERCNT_MASK	0xffff0000

#define ETCDC_DEFERCNT_SHIFT	16


#define ETBR_ALIGNMENT		(64*1024)

#define ETBR_L_RINGSZ_MASK	0x00000001

#define ETBR_L_RINGSZ128	0

#define ETBR_L_RINGSZ512	1

#define ETBR_L_TXRINGBASE_MASK	0xffffc000


#define ETCIR_TXCONSUME_MASK	0x0000ffff

#define ETCIR_IDLE		0x80000000


#define ETPIR_TXPRODUCE_MASK	0x0000ffff


#define EBIR_TXBUFPROD_MASK	0x0000001f

#define EBIR_TXBUFCONS_MASK	0x00001f00

#define EBIR_TXBUFCONS_SHIFT	8

#define EBIR_RXBUFPROD_MASK	0x007fc000

#define EBIR_RXBUFPROD_SHIFT	14

#define EBIR_RXBUFCONS_MASK	0xff800000

#define EBIR_RXBUFCONS_SHIFT	23


#define MICR_REGADDR_MASK	0x0000001f

#define MICR_PHYADDR_MASK	0x000003e0

#define MICR_PHYADDR_SHIFT	5

#define MICR_READTRIG		0x00000400

#define MICR_BUSY		0x00000800


#define MIDR_DATA_MASK		0x0000ffff


#define ERXBUF_IPCKSUM_MASK	0x0000ffff

#define ERXBUF_BYTECNT_MASK	0x07ff0000

#define ERXBUF_BYTECNT_SHIFT	16

#define ERXBUF_V		0x80000000


#define ERXBUF_CRCERR		0x00000001	
/* aka RSV15 */

#define ERXBUF_FRAMERR		0x00000002	
/* aka RSV14 */

#define ERXBUF_CODERR		0x00000004	
/* aka RSV13 */

#define ERXBUF_INVPREAMB	0x00000008	
/* aka RSV18 */

#define ERXBUF_LOLEN		0x00007000	
/* aka RSV2_0 */

#define ERXBUF_HILEN		0x03ff0000	
/* aka RSV12_3 */

#define ERXBUF_MULTICAST	0x04000000	
/* aka RSV16 */

#define ERXBUF_BROADCAST	0x08000000	
/* aka RSV17 */

#define ERXBUF_LONGEVENT	0x10000000	
/* aka RSV19 */

#define ERXBUF_BADPKT		0x20000000	
/* aka RSV20 */

#define ERXBUF_GOODPKT		0x40000000	
/* aka RSV21 */

#define ERXBUF_CARRIER		0x80000000	
/* aka RSV22 */


#define ETXD_BYTECNT_MASK	0x000007ff	
/* total byte count */

#define ETXD_INTWHENDONE	0x00001000	
/* intr when done */

#define ETXD_D0V		0x00010000	
/* data 0 valid */

#define ETXD_B1V		0x00020000	
/* buf 1 valid */

#define ETXD_B2V		0x00040000	
/* buf 2 valid */

#define ETXD_DOCHECKSUM		0x00080000	
/* insert ip cksum */

#define ETXD_CHKOFF_MASK	0x07f00000	
/* cksum byte offset */

#define ETXD_CHKOFF_SHIFT	20


#define ETXD_D0CNT_MASK		0x0000007f

#define ETXD_B1CNT_MASK		0x0007ff00

#define ETXD_B1CNT_SHIFT	8

#define ETXD_B2CNT_MASK		0x7ff00000

#define ETXD_B2CNT_SHIFT	20


typedef enum ioc3_subdevs_e {
    
ioc3_subdev_ether,
    
ioc3_subdev_generic,
    
ioc3_subdev_nic,
    
ioc3_subdev_kbms,
    
ioc3_subdev_ttya,
    
ioc3_subdev_ttyb,
    
ioc3_subdev_ecpp,
    
ioc3_subdev_rt,
    
ioc3_nsubdevs

} ioc3_subdev_t;

/* subdevice disable bits,
 * from the standard INFO_LBL_SUBDEVS
 */

#define IOC3_SDB_ETHER		(1<<ioc3_subdev_ether)

#define IOC3_SDB_GENERIC	(1<<ioc3_subdev_generic)

#define IOC3_SDB_NIC		(1<<ioc3_subdev_nic)

#define IOC3_SDB_KBMS		(1<<ioc3_subdev_kbms)

#define IOC3_SDB_TTYA		(1<<ioc3_subdev_ttya)

#define IOC3_SDB_TTYB		(1<<ioc3_subdev_ttyb)

#define IOC3_SDB_ECPP		(1<<ioc3_subdev_ecpp)

#define IOC3_SDB_RT		(1<<ioc3_subdev_rt)


#define IOC3_ALL_SUBDEVS	((1<<ioc3_nsubdevs)-1)


#define IOC3_SDB_SERIAL		(IOC3_SDB_TTYA|IOC3_SDB_TTYB)


#define IOC3_STD_SUBDEVS	IOC3_ALL_SUBDEVS


#define IOC3_INTA_SUBDEVS	IOC3_SDB_ETHER

#define IOC3_INTB_SUBDEVS	(IOC3_SDB_GENERIC|IOC3_SDB_KBMS|IOC3_SDB_SERIAL|IOC3_SDB_ECPP|IOC3_SDB_RT)

#endif /* _IOC3_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)237599.75%233.33%
Ralf Bächle40.17%233.33%
Adam Buchbinder10.04%116.67%
Greg Kroah-Hartman10.04%116.67%
Total2381100.00%6100.00%
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