ioc3.h

umon bootloader source code, support mips cpu.

#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/comsumer 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 */