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NetBSD/sys/dev/ic/cyvar.h

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New bus.h implementation/interface: - No more distinction between i/o-mapped and memory-mapped devices. It's all "bus space" now, and space tags differentiate the space with finer grain than the bus chipset tag. - Add memory barrier methods. - Implement space alloc/free methods. - Implement region read/write methods (like memcpy to/from bus space). This interface provides a better abstraction for dealing with machine-independent chipset drivers.
1996-10-22 02:24:37 +04:00
/* $NetBSD: cyvar.h,v 1.2 1996/10/21 22:34:19 thorpej Exp $ */
New Cyclades driver from Timo Rossi
1996-09-24 22:02:33 +04:00
/*
* cy_var.h
*
* Driver for Cyclades Cyclom-8/16/32 multiport serial cards
* (currently not tested with Cyclom-32 cards)
*
* Timo Rossi, 1996
*
* Supports both ISA and PCI Cyclom cards
*/
/* #define CY_DEBUG */
#define CY_DEBUG1
/*
* Maximum number of ports per card
*/
#define CY_MAX_PORTS (CD1400_NO_OF_CHANNELS * CY_MAX_CD1400s)
#define CY_RX_FIFO_THRESHOLD 6
/*
* Automatic RTS (or actually DTR, the RTS and DTR lines need to be
* exchanged) handshake threshold used if CY_HW_RTS is defined
*/
#define CY_RX_DTR_THRESHOLD 9
/*
* Port number on card encoded in low 5 bits
* card number in next 2 bits (only space for 4 cards)
* high bit reserved for dialout flag
*/
#define CY_PORT(x) (minor(x) & 0xf)
#define CY_CARD(x) ((minor(x) >> 5) & 3)
#define CY_DIALOUT(x) ((minor(x) & 0x80) != 0)
#define CY_DIALIN(x) (!CY_DIALOUT(x))
/*
* read/write cd1400 registers (when sc_softc-structure is available)
*/
New bus.h implementation/interface: - No more distinction between i/o-mapped and memory-mapped devices. It's all "bus space" now, and space tags differentiate the space with finer grain than the bus chipset tag. - Add memory barrier methods. - Implement space alloc/free methods. - Implement region read/write methods (like memcpy to/from bus space). This interface provides a better abstraction for dealing with machine-independent chipset drivers.
1996-10-22 02:24:37 +04:00
#define cd_read_reg(sc,chip,reg) bus_space_read_1(sc->sc_memt, \
sc->sc_bsh, sc->sc_cd1400_offs[chip] + \
New Cyclades driver from Timo Rossi
1996-09-24 22:02:33 +04:00
(((reg << 1)) << sc->sc_bustype))
New bus.h implementation/interface: - No more distinction between i/o-mapped and memory-mapped devices. It's all "bus space" now, and space tags differentiate the space with finer grain than the bus chipset tag. - Add memory barrier methods. - Implement space alloc/free methods. - Implement region read/write methods (like memcpy to/from bus space). This interface provides a better abstraction for dealing with machine-independent chipset drivers.
1996-10-22 02:24:37 +04:00
#define cd_write_reg(sc,chip,reg,val) bus_space_write_1(sc->sc_memt, \
sc->sc_bsh, sc->sc_cd1400_offs[chip] + \
New Cyclades driver from Timo Rossi
1996-09-24 22:02:33 +04:00
(((reg << 1))<< sc->sc_bustype), (val))
/*
* ibuf is a simple ring buffer. It is always used two
* bytes at a time (status and data)
*/
#define CY_IBUF_SIZE (2*512)
/* software state for one port */
struct cy_port {
int cy_port_num;
int cy_chip;
struct tty *cy_tty;
int cy_openflags;
int cy_fifo_overruns;
int cy_ibuf_overruns;
u_char cy_channel_control; /* last CCR channel control
* command bits */
u_char cy_carrier_stat; /* copied from MSVR2 */
u_char cy_flags;
u_char *cy_ibuf, *cy_ibuf_end;
u_char *cy_ibuf_rd_ptr, *cy_ibuf_wr_ptr;
#ifdef CY_DEBUG1
int cy_rx_int_count;
int cy_tx_int_count;
int cy_modem_int_count;
int cy_start_count;
#endif /* CY_DEBUG1 */
};
#define CY_F_CARRIER_CHANGED 0x01
#define CY_F_START_BREAK 0x02
#define CY_F_END_BREAK 0x04
#define CY_F_STOP 0x08
#define CY_F_SEND_NUL 0x10
#define CY_F_START 0x20
/* software state for one card */
struct cy_softc {
struct device sc_dev;
void *sc_ih;
New bus.h implementation/interface: - No more distinction between i/o-mapped and memory-mapped devices. It's all "bus space" now, and space tags differentiate the space with finer grain than the bus chipset tag. - Add memory barrier methods. - Implement space alloc/free methods. - Implement region read/write methods (like memcpy to/from bus space). This interface provides a better abstraction for dealing with machine-independent chipset drivers.
1996-10-22 02:24:37 +04:00
bus_space_tag_t sc_memt;
bus_space_tag_t sc_iot; /* only used by PCI card */
bus_space_handle_t sc_bsh;
New Cyclades driver from Timo Rossi
1996-09-24 22:02:33 +04:00
int sc_bustype;
int sc_nchips; /* Number of cd1400's on this card */
int sc_cd1400_offs[CY_MAX_CD1400s];
struct cy_port sc_ports[CY_MAX_PORTS];
#ifdef CY_DEBUG1
int sc_poll_count1;
int sc_poll_count2;
#endif
};
int cy_find __P((struct cy_softc *));
void cy_attach __P((struct device *, struct device *, void *));
int cy_intr __P((void *));