diff options
Diffstat (limited to 'drivers/net/sk_mca.h')
-rw-r--r-- | drivers/net/sk_mca.h | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/drivers/net/sk_mca.h b/drivers/net/sk_mca.h new file mode 100644 index 000000000000..7e7c99582746 --- /dev/null +++ b/drivers/net/sk_mca.h | |||
@@ -0,0 +1,172 @@ | |||
1 | #include <linux/version.h> | ||
2 | |||
3 | #ifndef _SK_MCA_INCLUDE_ | ||
4 | #define _SK_MCA_INCLUDE_ | ||
5 | |||
6 | #ifdef _SK_MCA_DRIVER_ | ||
7 | |||
8 | /* Adapter ID's */ | ||
9 | #define SKNET_MCA_ID 0x6afd | ||
10 | #define SKNET_JUNIOR_MCA_ID 0x6be9 | ||
11 | |||
12 | /* media enumeration - defined in a way that it fits onto the MC2+'s | ||
13 | POS registers... */ | ||
14 | |||
15 | typedef enum { Media_10Base2, Media_10BaseT, | ||
16 | Media_10Base5, Media_Unknown, Media_Count | ||
17 | } skmca_medium; | ||
18 | |||
19 | /* private structure */ | ||
20 | typedef struct { | ||
21 | unsigned int slot; /* MCA-Slot-# */ | ||
22 | void __iomem *base; | ||
23 | void __iomem *macbase; /* base address of MAC address PROM */ | ||
24 | void __iomem *ioregaddr;/* address of I/O-register (Lo) */ | ||
25 | void __iomem *ctrladdr; /* address of control/stat register */ | ||
26 | void __iomem *cmdaddr; /* address of I/O-command register */ | ||
27 | int nextrx; /* index of next RX descriptor to | ||
28 | be read */ | ||
29 | int nexttxput; /* index of next free TX descriptor */ | ||
30 | int nexttxdone; /* index of next TX descriptor to | ||
31 | be finished */ | ||
32 | int txbusy; /* # of busy TX descriptors */ | ||
33 | struct net_device_stats stat; /* packet statistics */ | ||
34 | int realirq; /* memorizes actual IRQ, even when | ||
35 | currently not allocated */ | ||
36 | skmca_medium medium; /* physical cannector */ | ||
37 | spinlock_t lock; | ||
38 | } skmca_priv; | ||
39 | |||
40 | /* card registers: control/status register bits */ | ||
41 | |||
42 | #define CTRL_ADR_DATA 0 /* Bit 0 = 0 ->access data register */ | ||
43 | #define CTRL_ADR_RAP 1 /* Bit 0 = 1 ->access RAP register */ | ||
44 | #define CTRL_RW_WRITE 0 /* Bit 1 = 0 ->write register */ | ||
45 | #define CTRL_RW_READ 2 /* Bit 1 = 1 ->read register */ | ||
46 | #define CTRL_RESET_ON 0 /* Bit 3 = 0 ->reset board */ | ||
47 | #define CTRL_RESET_OFF 8 /* Bit 3 = 1 ->no reset of board */ | ||
48 | |||
49 | #define STAT_ADR_DATA 0 /* Bit 0 of ctrl register read back */ | ||
50 | #define STAT_ADR_RAP 1 | ||
51 | #define STAT_RW_WRITE 0 /* Bit 1 of ctrl register read back */ | ||
52 | #define STAT_RW_READ 2 | ||
53 | #define STAT_RESET_ON 0 /* Bit 3 of ctrl register read back */ | ||
54 | #define STAT_RESET_OFF 8 | ||
55 | #define STAT_IRQ_ACT 0 /* interrupt pending */ | ||
56 | #define STAT_IRQ_NOACT 16 /* no interrupt pending */ | ||
57 | #define STAT_IO_NOBUSY 0 /* no transfer busy */ | ||
58 | #define STAT_IO_BUSY 32 /* transfer busy */ | ||
59 | |||
60 | /* I/O command register bits */ | ||
61 | |||
62 | #define IOCMD_GO 128 /* Bit 7 = 1 -> start register xfer */ | ||
63 | |||
64 | /* LANCE registers */ | ||
65 | |||
66 | #define LANCE_CSR0 0 /* Status/Control */ | ||
67 | |||
68 | #define CSR0_ERR 0x8000 /* general error flag */ | ||
69 | #define CSR0_BABL 0x4000 /* transmitter timeout */ | ||
70 | #define CSR0_CERR 0x2000 /* collision error */ | ||
71 | #define CSR0_MISS 0x1000 /* lost Rx block */ | ||
72 | #define CSR0_MERR 0x0800 /* memory access error */ | ||
73 | #define CSR0_RINT 0x0400 /* receiver interrupt */ | ||
74 | #define CSR0_TINT 0x0200 /* transmitter interrupt */ | ||
75 | #define CSR0_IDON 0x0100 /* initialization done */ | ||
76 | #define CSR0_INTR 0x0080 /* general interrupt flag */ | ||
77 | #define CSR0_INEA 0x0040 /* interrupt enable */ | ||
78 | #define CSR0_RXON 0x0020 /* receiver enabled */ | ||
79 | #define CSR0_TXON 0x0010 /* transmitter enabled */ | ||
80 | #define CSR0_TDMD 0x0008 /* force transmission now */ | ||
81 | #define CSR0_STOP 0x0004 /* stop LANCE */ | ||
82 | #define CSR0_STRT 0x0002 /* start LANCE */ | ||
83 | #define CSR0_INIT 0x0001 /* read initialization block */ | ||
84 | |||
85 | #define LANCE_CSR1 1 /* addr bit 0..15 of initialization */ | ||
86 | #define LANCE_CSR2 2 /* 16..23 block */ | ||
87 | |||
88 | #define LANCE_CSR3 3 /* Bus control */ | ||
89 | #define CSR3_BCON_HOLD 0 /* Bit 0 = 0 -> BM1,BM0,HOLD */ | ||
90 | #define CSR3_BCON_BUSRQ 1 /* Bit 0 = 1 -> BUSAK0,BYTE,BUSRQ */ | ||
91 | #define CSR3_ALE_HIGH 0 /* Bit 1 = 0 -> ALE asserted high */ | ||
92 | #define CSR3_ALE_LOW 2 /* Bit 1 = 1 -> ALE asserted low */ | ||
93 | #define CSR3_BSWAP_OFF 0 /* Bit 2 = 0 -> no byte swap */ | ||
94 | #define CSR3_BSWAP_ON 4 /* Bit 2 = 1 -> byte swap */ | ||
95 | |||
96 | /* LANCE structures */ | ||
97 | |||
98 | typedef struct { /* LANCE initialization block */ | ||
99 | u16 Mode; /* mode flags */ | ||
100 | u8 PAdr[6]; /* MAC address */ | ||
101 | u8 LAdrF[8]; /* Multicast filter */ | ||
102 | u32 RdrP; /* Receive descriptor */ | ||
103 | u32 TdrP; /* Transmit descriptor */ | ||
104 | } LANCE_InitBlock; | ||
105 | |||
106 | /* Mode flags init block */ | ||
107 | |||
108 | #define LANCE_INIT_PROM 0x8000 /* enable promiscous mode */ | ||
109 | #define LANCE_INIT_INTL 0x0040 /* internal loopback */ | ||
110 | #define LANCE_INIT_DRTY 0x0020 /* disable retry */ | ||
111 | #define LANCE_INIT_COLL 0x0010 /* force collision */ | ||
112 | #define LANCE_INIT_DTCR 0x0008 /* disable transmit CRC */ | ||
113 | #define LANCE_INIT_LOOP 0x0004 /* loopback */ | ||
114 | #define LANCE_INIT_DTX 0x0002 /* disable transmitter */ | ||
115 | #define LANCE_INIT_DRX 0x0001 /* disable receiver */ | ||
116 | |||
117 | typedef struct { /* LANCE Tx descriptor */ | ||
118 | u16 LowAddr; /* bit 0..15 of address */ | ||
119 | u16 Flags; /* bit 16..23 of address + Flags */ | ||
120 | u16 Len; /* 2s complement of packet length */ | ||
121 | u16 Status; /* Result of transmission */ | ||
122 | } LANCE_TxDescr; | ||
123 | |||
124 | #define TXDSCR_FLAGS_OWN 0x8000 /* LANCE owns descriptor */ | ||
125 | #define TXDSCR_FLAGS_ERR 0x4000 /* summary error flag */ | ||
126 | #define TXDSCR_FLAGS_MORE 0x1000 /* more than one retry needed? */ | ||
127 | #define TXDSCR_FLAGS_ONE 0x0800 /* one retry? */ | ||
128 | #define TXDSCR_FLAGS_DEF 0x0400 /* transmission deferred? */ | ||
129 | #define TXDSCR_FLAGS_STP 0x0200 /* first packet in chain? */ | ||
130 | #define TXDSCR_FLAGS_ENP 0x0100 /* last packet in chain? */ | ||
131 | |||
132 | #define TXDSCR_STATUS_BUFF 0x8000 /* buffer error? */ | ||
133 | #define TXDSCR_STATUS_UFLO 0x4000 /* silo underflow during transmit? */ | ||
134 | #define TXDSCR_STATUS_LCOL 0x1000 /* late collision? */ | ||
135 | #define TXDSCR_STATUS_LCAR 0x0800 /* loss of carrier? */ | ||
136 | #define TXDSCR_STATUS_RTRY 0x0400 /* retry error? */ | ||
137 | |||
138 | typedef struct { /* LANCE Rx descriptor */ | ||
139 | u16 LowAddr; /* bit 0..15 of address */ | ||
140 | u16 Flags; /* bit 16..23 of address + Flags */ | ||
141 | u16 MaxLen; /* 2s complement of buffer length */ | ||
142 | u16 Len; /* packet length */ | ||
143 | } LANCE_RxDescr; | ||
144 | |||
145 | #define RXDSCR_FLAGS_OWN 0x8000 /* LANCE owns descriptor */ | ||
146 | #define RXDSCR_FLAGS_ERR 0x4000 /* summary error flag */ | ||
147 | #define RXDSCR_FLAGS_FRAM 0x2000 /* framing error flag */ | ||
148 | #define RXDSCR_FLAGS_OFLO 0x1000 /* FIFO overflow? */ | ||
149 | #define RXDSCR_FLAGS_CRC 0x0800 /* CRC error? */ | ||
150 | #define RXDSCR_FLAGS_BUFF 0x0400 /* buffer error? */ | ||
151 | #define RXDSCR_FLAGS_STP 0x0200 /* first packet in chain? */ | ||
152 | #define RXDCSR_FLAGS_ENP 0x0100 /* last packet in chain? */ | ||
153 | |||
154 | /* RAM layout */ | ||
155 | |||
156 | #define TXCOUNT 4 /* length of TX descriptor queue */ | ||
157 | #define LTXCOUNT 2 /* log2 of it */ | ||
158 | #define RXCOUNT 4 /* length of RX descriptor queue */ | ||
159 | #define LRXCOUNT 2 /* log2 of it */ | ||
160 | |||
161 | #define RAM_INITBASE 0 /* LANCE init block */ | ||
162 | #define RAM_TXBASE 24 /* Start of TX descriptor queue */ | ||
163 | #define RAM_RXBASE \ | ||
164 | (RAM_TXBASE + (TXCOUNT * 8)) /* Start of RX descriptor queue */ | ||
165 | #define RAM_DATABASE \ | ||
166 | (RAM_RXBASE + (RXCOUNT * 8)) /* Start of data area for frames */ | ||
167 | #define RAM_BUFSIZE 1580 /* max. frame size - should never be | ||
168 | reached */ | ||
169 | |||
170 | #endif /* _SK_MCA_DRIVER_ */ | ||
171 | |||
172 | #endif /* _SK_MCA_INCLUDE_ */ | ||