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-rw-r--r--drivers/net/de600.h169
1 files changed, 169 insertions, 0 deletions
diff --git a/drivers/net/de600.h b/drivers/net/de600.h
new file mode 100644
index 000000000000..e4073015dcd8
--- /dev/null
+++ b/drivers/net/de600.h
@@ -0,0 +1,169 @@
1/**************************************************
2 * *
3 * Definition of D-Link Ethernet Pocket adapter *
4 * *
5 **************************************************/
6/*
7 * D-Link Ethernet pocket adapter ports
8 */
9/*
10 * OK, so I'm cheating, but there are an awful lot of
11 * reads and writes in order to get anything in and out
12 * of the DE-600 with 4 bits at a time in the parallel port,
13 * so every saved instruction really helps :-)
14 */
15
16#ifndef DE600_IO
17#define DE600_IO 0x378
18#endif
19
20#define DATA_PORT (DE600_IO)
21#define STATUS_PORT (DE600_IO + 1)
22#define COMMAND_PORT (DE600_IO + 2)
23
24#ifndef DE600_IRQ
25#define DE600_IRQ 7
26#endif
27/*
28 * It really should look like this, and autoprobing as well...
29 *
30#define DATA_PORT (dev->base_addr + 0)
31#define STATUS_PORT (dev->base_addr + 1)
32#define COMMAND_PORT (dev->base_addr + 2)
33#define DE600_IRQ dev->irq
34 */
35
36/*
37 * D-Link COMMAND_PORT commands
38 */
39#define SELECT_NIC 0x04 /* select Network Interface Card */
40#define SELECT_PRN 0x1c /* select Printer */
41#define NML_PRN 0xec /* normal Printer situation */
42#define IRQEN 0x10 /* enable IRQ line */
43
44/*
45 * D-Link STATUS_PORT
46 */
47#define RX_BUSY 0x80
48#define RX_GOOD 0x40
49#define TX_FAILED16 0x10
50#define TX_BUSY 0x08
51
52/*
53 * D-Link DATA_PORT commands
54 * command in low 4 bits
55 * data in high 4 bits
56 * select current data nibble with HI_NIBBLE bit
57 */
58#define WRITE_DATA 0x00 /* write memory */
59#define READ_DATA 0x01 /* read memory */
60#define STATUS 0x02 /* read status register */
61#define COMMAND 0x03 /* write command register (see COMMAND below) */
62#define NULL_COMMAND 0x04 /* null command */
63#define RX_LEN 0x05 /* read received packet length */
64#define TX_ADDR 0x06 /* set adapter transmit memory address */
65#define RW_ADDR 0x07 /* set adapter read/write memory address */
66#define HI_NIBBLE 0x08 /* read/write the high nibble of data,
67 or-ed with rest of command */
68
69/*
70 * command register, accessed through DATA_PORT with low bits = COMMAND
71 */
72#define RX_ALL 0x01 /* PROMISCUOUS */
73#define RX_BP 0x02 /* default: BROADCAST & PHYSICAL ADDRESS */
74#define RX_MBP 0x03 /* MULTICAST, BROADCAST & PHYSICAL ADDRESS */
75
76#define TX_ENABLE 0x04 /* bit 2 */
77#define RX_ENABLE 0x08 /* bit 3 */
78
79#define RESET 0x80 /* set bit 7 high */
80#define STOP_RESET 0x00 /* set bit 7 low */
81
82/*
83 * data to command register
84 * (high 4 bits in write to DATA_PORT)
85 */
86#define RX_PAGE2_SELECT 0x10 /* bit 4, only 2 pages to select */
87#define RX_BASE_PAGE 0x20 /* bit 5, always set when specifying RX_ADDR */
88#define FLIP_IRQ 0x40 /* bit 6 */
89
90/*
91 * D-Link adapter internal memory:
92 *
93 * 0-2K 1:st transmit page (send from pointer up to 2K)
94 * 2-4K 2:nd transmit page (send from pointer up to 4K)
95 *
96 * 4-6K 1:st receive page (data from 4K upwards)
97 * 6-8K 2:nd receive page (data from 6K upwards)
98 *
99 * 8K+ Adapter ROM (contains magic code and last 3 bytes of Ethernet address)
100 */
101#define MEM_2K 0x0800 /* 2048 */
102#define MEM_4K 0x1000 /* 4096 */
103#define MEM_6K 0x1800 /* 6144 */
104#define NODE_ADDRESS 0x2000 /* 8192 */
105
106#define RUNT 60 /* Too small Ethernet packet */
107
108/**************************************************
109 * *
110 * End of definition *
111 * *
112 **************************************************/
113
114/*
115 * Index to functions, as function prototypes.
116 */
117/* Routines used internally. (See "convenience macros") */
118static u8 de600_read_status(struct net_device *dev);
119static u8 de600_read_byte(unsigned char type, struct net_device *dev);
120
121/* Put in the device structure. */
122static int de600_open(struct net_device *dev);
123static int de600_close(struct net_device *dev);
124static struct net_device_stats *get_stats(struct net_device *dev);
125static int de600_start_xmit(struct sk_buff *skb, struct net_device *dev);
126
127/* Dispatch from interrupts. */
128static irqreturn_t de600_interrupt(int irq, void *dev_id, struct pt_regs *regs);
129static int de600_tx_intr(struct net_device *dev, int irq_status);
130static void de600_rx_intr(struct net_device *dev);
131
132/* Initialization */
133static void trigger_interrupt(struct net_device *dev);
134static int adapter_init(struct net_device *dev);
135
136/*
137 * Convenience macros/functions for D-Link adapter
138 */
139
140#define select_prn() outb_p(SELECT_PRN, COMMAND_PORT); DE600_SLOW_DOWN
141#define select_nic() outb_p(SELECT_NIC, COMMAND_PORT); DE600_SLOW_DOWN
142
143/* Thanks for hints from Mark Burton <markb@ordern.demon.co.uk> */
144#define de600_put_byte(data) ( \
145 outb_p(((data) << 4) | WRITE_DATA , DATA_PORT), \
146 outb_p(((data) & 0xf0) | WRITE_DATA | HI_NIBBLE, DATA_PORT))
147
148/*
149 * The first two outb_p()'s below could perhaps be deleted if there
150 * would be more delay in the last two. Not certain about it yet...
151 */
152#define de600_put_command(cmd) ( \
153 outb_p(( rx_page << 4) | COMMAND , DATA_PORT), \
154 outb_p(( rx_page & 0xf0) | COMMAND | HI_NIBBLE, DATA_PORT), \
155 outb_p(((rx_page | cmd) << 4) | COMMAND , DATA_PORT), \
156 outb_p(((rx_page | cmd) & 0xf0) | COMMAND | HI_NIBBLE, DATA_PORT))
157
158#define de600_setup_address(addr,type) ( \
159 outb_p((((addr) << 4) & 0xf0) | type , DATA_PORT), \
160 outb_p(( (addr) & 0xf0) | type | HI_NIBBLE, DATA_PORT), \
161 outb_p((((addr) >> 4) & 0xf0) | type , DATA_PORT), \
162 outb_p((((addr) >> 8) & 0xf0) | type | HI_NIBBLE, DATA_PORT))
163
164#define rx_page_adr() ((rx_page & RX_PAGE2_SELECT)?(MEM_6K):(MEM_4K))
165
166/* Flip bit, only 2 pages */
167#define next_rx_page() (rx_page ^= RX_PAGE2_SELECT)
168
169#define tx_page_adr(a) (((a) + 1) * MEM_2K)
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-18 23:53:38 -0500