mirror of
https://github.com/torvalds/linux.git
synced 2024-12-30 14:52:05 +00:00
122 lines
3.7 KiB
C
122 lines
3.7 KiB
C
/* am7990 (lance) definitions
|
|
*
|
|
* This is an extension to the Linux operating system, and is covered by
|
|
* same GNU General Public License that covers that work.
|
|
*
|
|
* Michael Hipp
|
|
* email: mhipp@student.uni-tuebingen.de
|
|
*
|
|
* sources: (mail me or ask archie if you need them)
|
|
* crynwr-packet-driver
|
|
*/
|
|
|
|
/*
|
|
* Control and Status Register 0 (CSR0) bit definitions
|
|
* (R=Readable) (W=Writeable) (S=Set on write) (C-Clear on write)
|
|
*
|
|
*/
|
|
|
|
#define CSR0_ERR 0x8000 /* Error summary (R) */
|
|
#define CSR0_BABL 0x4000 /* Babble transmitter timeout error (RC) */
|
|
#define CSR0_CERR 0x2000 /* Collision Error (RC) */
|
|
#define CSR0_MISS 0x1000 /* Missed packet (RC) */
|
|
#define CSR0_MERR 0x0800 /* Memory Error (RC) */
|
|
#define CSR0_RINT 0x0400 /* Receiver Interrupt (RC) */
|
|
#define CSR0_TINT 0x0200 /* Transmit Interrupt (RC) */
|
|
#define CSR0_IDON 0x0100 /* Initialization Done (RC) */
|
|
#define CSR0_INTR 0x0080 /* Interrupt Flag (R) */
|
|
#define CSR0_INEA 0x0040 /* Interrupt Enable (RW) */
|
|
#define CSR0_RXON 0x0020 /* Receiver on (R) */
|
|
#define CSR0_TXON 0x0010 /* Transmitter on (R) */
|
|
#define CSR0_TDMD 0x0008 /* Transmit Demand (RS) */
|
|
#define CSR0_STOP 0x0004 /* Stop (RS) */
|
|
#define CSR0_STRT 0x0002 /* Start (RS) */
|
|
#define CSR0_INIT 0x0001 /* Initialize (RS) */
|
|
|
|
#define CSR0_CLRALL 0x7f00 /* mask for all clearable bits */
|
|
/*
|
|
* Initialization Block Mode operation Bit Definitions.
|
|
*/
|
|
|
|
#define M_PROM 0x8000 /* Promiscuous Mode */
|
|
#define M_INTL 0x0040 /* Internal Loopback */
|
|
#define M_DRTY 0x0020 /* Disable Retry */
|
|
#define M_COLL 0x0010 /* Force Collision */
|
|
#define M_DTCR 0x0008 /* Disable Transmit CRC) */
|
|
#define M_LOOP 0x0004 /* Loopback */
|
|
#define M_DTX 0x0002 /* Disable the Transmitter */
|
|
#define M_DRX 0x0001 /* Disable the Receiver */
|
|
|
|
|
|
/*
|
|
* Receive message descriptor bit definitions.
|
|
*/
|
|
|
|
#define RCV_OWN 0x80 /* owner bit 0 = host, 1 = lance */
|
|
#define RCV_ERR 0x40 /* Error Summary */
|
|
#define RCV_FRAM 0x20 /* Framing Error */
|
|
#define RCV_OFLO 0x10 /* Overflow Error */
|
|
#define RCV_CRC 0x08 /* CRC Error */
|
|
#define RCV_BUF_ERR 0x04 /* Buffer Error */
|
|
#define RCV_START 0x02 /* Start of Packet */
|
|
#define RCV_END 0x01 /* End of Packet */
|
|
|
|
|
|
/*
|
|
* Transmit message descriptor bit definitions.
|
|
*/
|
|
|
|
#define XMIT_OWN 0x80 /* owner bit 0 = host, 1 = lance */
|
|
#define XMIT_ERR 0x40 /* Error Summary */
|
|
#define XMIT_RETRY 0x10 /* more the 1 retry needed to Xmit */
|
|
#define XMIT_1_RETRY 0x08 /* one retry needed to Xmit */
|
|
#define XMIT_DEF 0x04 /* Deferred */
|
|
#define XMIT_START 0x02 /* Start of Packet */
|
|
#define XMIT_END 0x01 /* End of Packet */
|
|
|
|
/*
|
|
* transmit status (2) (valid if XMIT_ERR == 1)
|
|
*/
|
|
|
|
#define XMIT_TDRMASK 0x03ff /* time-domain-reflectometer-value */
|
|
#define XMIT_RTRY 0x0400 /* Failed after 16 retransmissions */
|
|
#define XMIT_LCAR 0x0800 /* Loss of Carrier */
|
|
#define XMIT_LCOL 0x1000 /* Late collision */
|
|
#define XMIT_RESERV 0x2000 /* Reserved */
|
|
#define XMIT_UFLO 0x4000 /* Underflow (late memory) */
|
|
#define XMIT_BUFF 0x8000 /* Buffering error (no ENP) */
|
|
|
|
struct init_block {
|
|
unsigned short mode;
|
|
unsigned char eaddr[6];
|
|
unsigned char filter[8];
|
|
/* bit 29-31: number of rmd's (power of 2) */
|
|
u32 rrp; /* receive ring pointer (align 8) */
|
|
/* bit 29-31: number of tmd's (power of 2) */
|
|
u32 trp; /* transmit ring pointer (align 8) */
|
|
};
|
|
|
|
struct rmd { /* Receive Message Descriptor */
|
|
union {
|
|
volatile u32 buffer;
|
|
struct {
|
|
volatile unsigned char dummy[3];
|
|
volatile unsigned char status;
|
|
} s;
|
|
} u;
|
|
volatile short blen;
|
|
volatile unsigned short mlen;
|
|
};
|
|
|
|
struct tmd {
|
|
union {
|
|
volatile u32 buffer;
|
|
struct {
|
|
volatile unsigned char dummy[3];
|
|
volatile unsigned char status;
|
|
} s;
|
|
} u;
|
|
volatile unsigned short blen;
|
|
volatile unsigned short status2;
|
|
};
|