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[TG3]: Add 5761 APE support
[net-next-2.6.git] / drivers / net / hydra.c
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1da177e4
LT		 1/* New Hydra driver using generic 8390 core */
2/* Based on old hydra driver by Topi Kanerva (topi@susanna.oulu.fi) */
3
4/* This file is subject to the terms and conditions of the GNU General */
5/* Public License. See the file COPYING in the main directory of the */
6/* Linux distribution for more details. */
7
8/* Peter De Schrijver (p2@mind.be) */
9/* Oldenburg 2000 */
10
11/* The Amiganet is a Zorro-II board made by Hydra Systems. It contains a */
12/* NS8390 NIC (network interface controller) clone, 16 or 64K on-board RAM */
13/* and 10BASE-2 (thin coax) and AUI connectors. */
14
15#include <linux/module.h>
16#include <linux/kernel.h>
17#include <linux/string.h>
18#include <linux/errno.h>
19#include <linux/ioport.h>
20#include <linux/slab.h>
21#include <linux/interrupt.h>
22#include <linux/netdevice.h>
23#include <linux/etherdevice.h>
24#include <linux/skbuff.h>
25#include <linux/init.h>
26#include <linux/bitops.h>
27
28#include <asm/io.h>
29#include <asm/irq.h>
30#include <asm/amigaints.h>
31#include <asm/amigahw.h>
32#include <linux/zorro.h>
33
8c6270f9
AV		 34#define EI_SHIFT(x) (ei_local->reg_offset[x])
35#define ei_inb(port) in_8(port)
36#define ei_outb(val,port) out_8(port,val)
37#define ei_inb_p(port) in_8(port)
38#define ei_outb_p(val,port) out_8(port,val)
39
40static const char version[] =
41 "8390.c:v1.10cvs 9/23/94 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n";
42
43#include "lib8390.c"
1da177e4
LT		 44
45#define NE_EN0_DCFG (0x0e*2)
46
47#define NESM_START_PG 0x0 /* First page of TX buffer */
48#define NESM_STOP_PG 0x40 /* Last page +1 of RX ring */
49
50#define HYDRA_NIC_BASE 0xffe1
51#define HYDRA_ADDRPROM 0xffc0
52#define HYDRA_VERSION "v3.0alpha"
53
54#define WORDSWAP(a) ((((a)>>8)&0xff) | ((a)<<8))
55
56
57static int __devinit hydra_init_one(struct zorro_dev *z,
58 const struct zorro_device_id *ent);
59static int __devinit hydra_init(struct zorro_dev *z);
60static int hydra_open(struct net_device *dev);
61static int hydra_close(struct net_device *dev);
62static void hydra_reset_8390(struct net_device *dev);
63static void hydra_get_8390_hdr(struct net_device *dev,
64 struct e8390_pkt_hdr *hdr, int ring_page);
65static void hydra_block_input(struct net_device *dev, int count,
66 struct sk_buff *skb, int ring_offset);
67static void hydra_block_output(struct net_device *dev, int count,
68 const unsigned char *buf, int start_page);
69static void __devexit hydra_remove_one(struct zorro_dev *z);
70
71static struct zorro_device_id hydra_zorro_tbl[] __devinitdata = {
72 { ZORRO_PROD_HYDRA_SYSTEMS_AMIGANET },
73 { 0 }
74};
75
76static struct zorro_driver hydra_driver = {
77 .name = "hydra",
78 .id_table = hydra_zorro_tbl,
79 .probe = hydra_init_one,
80 .remove = __devexit_p(hydra_remove_one),
81};
82
83static int __devinit hydra_init_one(struct zorro_dev *z,
84 const struct zorro_device_id *ent)
85{
86 int err;
87
88 if (!request_mem_region(z->resource.start, 0x10000, "Hydra"))
89 return -EBUSY;
90 if ((err = hydra_init(z))) {
91 release_mem_region(z->resource.start, 0x10000);
92 return -EBUSY;
93 }
94 return 0;
95}
96
97static int __devinit hydra_init(struct zorro_dev *z)
98{
99 struct net_device *dev;
100 unsigned long board = ZTWO_VADDR(z->resource.start);
101 unsigned long ioaddr = board+HYDRA_NIC_BASE;
102 const char name[] = "NE2000";
103 int start_page, stop_page;
104 int j;
105 int err;
0795af57 106 DECLARE_MAC_BUF(mac);
1da177e4
LT		 107
108 static u32 hydra_offsets[16] = {
109 0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e,
110 0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e,
111 };
112
8c6270f9 113 dev = ____alloc_ei_netdev(0);
1da177e4
LT		 114 if (!dev)
115 return -ENOMEM;
1da177e4
LT		 116
117 for(j = 0; j < ETHER_ADDR_LEN; j++)
118 dev->dev_addr[j] = *((u8 *)(board + HYDRA_ADDRPROM + 2*j));
119
120 /* We must set the 8390 for word mode. */
121 z_writeb(0x4b, ioaddr + NE_EN0_DCFG);
122 start_page = NESM_START_PG;
123 stop_page = NESM_STOP_PG;
124
125 dev->base_addr = ioaddr;
126 dev->irq = IRQ_AMIGA_PORTS;
127
128 /* Install the Interrupt handler */
8c6270f9 129 if (request_irq(IRQ_AMIGA_PORTS, __ei_interrupt, IRQF_SHARED, "Hydra Ethernet",
1da177e4
LT		 130 dev)) {
131 free_netdev(dev);
132 return -EAGAIN;
133 }
134
135 ei_status.name = name;
136 ei_status.tx_start_page = start_page;
137 ei_status.stop_page = stop_page;
138 ei_status.word16 = 1;
139 ei_status.bigendian = 1;
140
141 ei_status.rx_start_page = start_page + TX_PAGES;
142
143 ei_status.reset_8390 = &hydra_reset_8390;
144 ei_status.block_input = &hydra_block_input;
145 ei_status.block_output = &hydra_block_output;
146 ei_status.get_8390_hdr = &hydra_get_8390_hdr;
147 ei_status.reg_offset = hydra_offsets;
148 dev->open = &hydra_open;
149 dev->stop = &hydra_close;
150#ifdef CONFIG_NET_POLL_CONTROLLER
8c6270f9 151 dev->poll_controller = __ei_poll;
1da177e4
LT		 152#endif
153
8c6270f9 154 __NS8390_init(dev, 0);
1da177e4
LT		 155
156 err = register_netdev(dev);
157 if (err) {
158 free_irq(IRQ_AMIGA_PORTS, dev);
159 free_netdev(dev);
160 return err;
161 }
162
163 zorro_set_drvdata(z, dev);
164
165 printk(KERN_INFO "%s: Hydra at 0x%08lx, address "
0795af57
JP		 166 "%s (hydra.c " HYDRA_VERSION ")\n",
167 dev->name, z->resource.start, print_mac(mac, dev->dev_addr));
1da177e4
LT		 168
169 return 0;
170}
171
172static int hydra_open(struct net_device *dev)
173{
8c6270f9 174 __ei_open(dev);
1da177e4
LT		 175 return 0;
176}
177
178static int hydra_close(struct net_device *dev)
179{
180 if (ei_debug > 1)
181 printk(KERN_DEBUG "%s: Shutting down ethercard.\n", dev->name);
8c6270f9 182 __ei_close(dev);
1da177e4
LT		 183 return 0;
184}
185
186static void hydra_reset_8390(struct net_device *dev)
187{
188 printk(KERN_INFO "Hydra hw reset not there\n");
189}
190
191static void hydra_get_8390_hdr(struct net_device *dev,
192 struct e8390_pkt_hdr *hdr, int ring_page)
193{
194 int nic_base = dev->base_addr;
195 short *ptrs;
196 unsigned long hdr_start= (nic_base-HYDRA_NIC_BASE) +
197 ((ring_page - NESM_START_PG)<<8);
198 ptrs = (short *)hdr;
199
200 *(ptrs++) = z_readw(hdr_start);
201 *((short *)hdr) = WORDSWAP(*((short *)hdr));
202 hdr_start += 2;
203 *(ptrs++) = z_readw(hdr_start);
204 *((short *)hdr+1) = WORDSWAP(*((short *)hdr+1));
205}
206
207static void hydra_block_input(struct net_device *dev, int count,
208 struct sk_buff *skb, int ring_offset)
209{
210 unsigned long nic_base = dev->base_addr;
211 unsigned long mem_base = nic_base - HYDRA_NIC_BASE;
212 unsigned long xfer_start = mem_base + ring_offset - (NESM_START_PG<<8);
213
214 if (count&1)
215 count++;
216
217 if (xfer_start+count > mem_base + (NESM_STOP_PG<<8)) {
218 int semi_count = (mem_base + (NESM_STOP_PG<<8)) - xfer_start;
219
220 z_memcpy_fromio(skb->data,xfer_start,semi_count);
221 count -= semi_count;
222 z_memcpy_fromio(skb->data+semi_count, mem_base, count);
223 } else
224 z_memcpy_fromio(skb->data, xfer_start,count);
225
226}
227
228static void hydra_block_output(struct net_device *dev, int count,
229 const unsigned char *buf, int start_page)
230{
231 unsigned long nic_base = dev->base_addr;
232 unsigned long mem_base = nic_base - HYDRA_NIC_BASE;
233
234 if (count&1)
235 count++;
236
237 z_memcpy_toio(mem_base+((start_page - NESM_START_PG)<<8), buf, count);
238}
239
240static void __devexit hydra_remove_one(struct zorro_dev *z)
241{
242 struct net_device *dev = zorro_get_drvdata(z);
243
244 unregister_netdev(dev);
245 free_irq(IRQ_AMIGA_PORTS, dev);
246 release_mem_region(ZTWO_PADDR(dev->base_addr)-HYDRA_NIC_BASE, 0x10000);
247 free_netdev(dev);
248}
249
250static int __init hydra_init_module(void)
251{
33d8675e 252 return zorro_register_driver(&hydra_driver);
1da177e4
LT		 253}
254
255static void __exit hydra_cleanup_module(void)
256{
257 zorro_unregister_driver(&hydra_driver);
258}
259
260module_init(hydra_init_module);
261module_exit(hydra_cleanup_module);
262
263MODULE_LICENSE("GPL");
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