Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | drivers/net/tulip/21142.c | |
3 | ||
4 | Maintained by Jeff Garzik <jgarzik@pobox.com> | |
5 | Copyright 2000,2001 The Linux Kernel Team | |
6 | Written/copyright 1994-2001 by Donald Becker. | |
7 | ||
8 | This software may be used and distributed according to the terms | |
9 | of the GNU General Public License, incorporated herein by reference. | |
10 | ||
11 | Please refer to Documentation/DocBook/tulip-user.{pdf,ps,html} | |
12 | for more information on this driver, or visit the project | |
13 | Web page at http://sourceforge.net/projects/tulip/ | |
14 | ||
15 | */ | |
16 | ||
17 | #include <linux/pci.h> | |
18 | #include <linux/delay.h> | |
19 | #include "tulip.h" | |
20 | ||
21 | ||
22 | static u16 t21142_csr13[] = { 0x0001, 0x0009, 0x0009, 0x0000, 0x0001, }; | |
23 | u16 t21142_csr14[] = { 0xFFFF, 0x0705, 0x0705, 0x0000, 0x7F3D, }; | |
24 | static u16 t21142_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, }; | |
25 | ||
26 | ||
27 | /* Handle the 21143 uniquely: do autoselect with NWay, not the EEPROM list | |
28 | of available transceivers. */ | |
29 | void t21142_timer(unsigned long data) | |
30 | { | |
31 | struct net_device *dev = (struct net_device *)data; | |
32 | struct tulip_private *tp = netdev_priv(dev); | |
33 | void __iomem *ioaddr = tp->base_addr; | |
34 | int csr12 = ioread32(ioaddr + CSR12); | |
35 | int next_tick = 60*HZ; | |
36 | int new_csr6 = 0; | |
37 | ||
38 | if (tulip_debug > 2) | |
39 | printk(KERN_INFO"%s: 21143 negotiation status %8.8x, %s.\n", | |
40 | dev->name, csr12, medianame[dev->if_port]); | |
41 | if (tulip_media_cap[dev->if_port] & MediaIsMII) { | |
42 | if (tulip_check_duplex(dev) < 0) { | |
43 | netif_carrier_off(dev); | |
44 | next_tick = 3*HZ; | |
45 | } else { | |
46 | netif_carrier_on(dev); | |
47 | next_tick = 60*HZ; | |
48 | } | |
49 | } else if (tp->nwayset) { | |
50 | /* Don't screw up a negotiated session! */ | |
51 | if (tulip_debug > 1) | |
52 | printk(KERN_INFO"%s: Using NWay-set %s media, csr12 %8.8x.\n", | |
53 | dev->name, medianame[dev->if_port], csr12); | |
54 | } else if (tp->medialock) { | |
55 | ; | |
56 | } else if (dev->if_port == 3) { | |
57 | if (csr12 & 2) { /* No 100mbps link beat, revert to 10mbps. */ | |
58 | if (tulip_debug > 1) | |
59 | printk(KERN_INFO"%s: No 21143 100baseTx link beat, %8.8x, " | |
60 | "trying NWay.\n", dev->name, csr12); | |
61 | t21142_start_nway(dev); | |
62 | next_tick = 3*HZ; | |
63 | } | |
64 | } else if ((csr12 & 0x7000) != 0x5000) { | |
65 | /* Negotiation failed. Search media types. */ | |
66 | if (tulip_debug > 1) | |
67 | printk(KERN_INFO"%s: 21143 negotiation failed, status %8.8x.\n", | |
68 | dev->name, csr12); | |
69 | if (!(csr12 & 4)) { /* 10mbps link beat good. */ | |
70 | new_csr6 = 0x82420000; | |
71 | dev->if_port = 0; | |
72 | iowrite32(0, ioaddr + CSR13); | |
73 | iowrite32(0x0003FFFF, ioaddr + CSR14); | |
74 | iowrite16(t21142_csr15[dev->if_port], ioaddr + CSR15); | |
75 | iowrite32(t21142_csr13[dev->if_port], ioaddr + CSR13); | |
76 | } else { | |
77 | /* Select 100mbps port to check for link beat. */ | |
78 | new_csr6 = 0x83860000; | |
79 | dev->if_port = 3; | |
80 | iowrite32(0, ioaddr + CSR13); | |
81 | iowrite32(0x0003FF7F, ioaddr + CSR14); | |
82 | iowrite16(8, ioaddr + CSR15); | |
83 | iowrite32(1, ioaddr + CSR13); | |
84 | } | |
85 | if (tulip_debug > 1) | |
86 | printk(KERN_INFO"%s: Testing new 21143 media %s.\n", | |
87 | dev->name, medianame[dev->if_port]); | |
88 | if (new_csr6 != (tp->csr6 & ~0x00D5)) { | |
89 | tp->csr6 &= 0x00D5; | |
90 | tp->csr6 |= new_csr6; | |
91 | iowrite32(0x0301, ioaddr + CSR12); | |
92 | tulip_restart_rxtx(tp); | |
93 | } | |
94 | next_tick = 3*HZ; | |
95 | } | |
96 | ||
97 | /* mod_timer synchronizes us with potential add_timer calls | |
98 | * from interrupts. | |
99 | */ | |
100 | mod_timer(&tp->timer, RUN_AT(next_tick)); | |
101 | } | |
102 | ||
103 | ||
104 | void t21142_start_nway(struct net_device *dev) | |
105 | { | |
106 | struct tulip_private *tp = netdev_priv(dev); | |
107 | void __iomem *ioaddr = tp->base_addr; | |
108 | int csr14 = ((tp->sym_advertise & 0x0780) << 9) | | |
109 | ((tp->sym_advertise & 0x0020) << 1) | 0xffbf; | |
110 | ||
111 | dev->if_port = 0; | |
112 | tp->nway = tp->mediasense = 1; | |
113 | tp->nwayset = tp->lpar = 0; | |
114 | if (tulip_debug > 1) | |
115 | printk(KERN_DEBUG "%s: Restarting 21143 autonegotiation, csr14=%8.8x.\n", | |
116 | dev->name, csr14); | |
117 | iowrite32(0x0001, ioaddr + CSR13); | |
118 | udelay(100); | |
119 | iowrite32(csr14, ioaddr + CSR14); | |
120 | tp->csr6 = 0x82420000 | (tp->sym_advertise & 0x0040 ? FullDuplex : 0); | |
121 | iowrite32(tp->csr6, ioaddr + CSR6); | |
122 | if (tp->mtable && tp->mtable->csr15dir) { | |
123 | iowrite32(tp->mtable->csr15dir, ioaddr + CSR15); | |
124 | iowrite32(tp->mtable->csr15val, ioaddr + CSR15); | |
125 | } else | |
126 | iowrite16(0x0008, ioaddr + CSR15); | |
127 | iowrite32(0x1301, ioaddr + CSR12); /* Trigger NWAY. */ | |
128 | } | |
129 | ||
130 | ||
131 | ||
132 | void t21142_lnk_change(struct net_device *dev, int csr5) | |
133 | { | |
134 | struct tulip_private *tp = netdev_priv(dev); | |
135 | void __iomem *ioaddr = tp->base_addr; | |
136 | int csr12 = ioread32(ioaddr + CSR12); | |
137 | ||
138 | if (tulip_debug > 1) | |
139 | printk(KERN_INFO"%s: 21143 link status interrupt %8.8x, CSR5 %x, " | |
140 | "%8.8x.\n", dev->name, csr12, csr5, ioread32(ioaddr + CSR14)); | |
141 | ||
142 | /* If NWay finished and we have a negotiated partner capability. */ | |
143 | if (tp->nway && !tp->nwayset && (csr12 & 0x7000) == 0x5000) { | |
144 | int setup_done = 0; | |
145 | int negotiated = tp->sym_advertise & (csr12 >> 16); | |
146 | tp->lpar = csr12 >> 16; | |
147 | tp->nwayset = 1; | |
148 | if (negotiated & 0x0100) dev->if_port = 5; | |
149 | else if (negotiated & 0x0080) dev->if_port = 3; | |
150 | else if (negotiated & 0x0040) dev->if_port = 4; | |
151 | else if (negotiated & 0x0020) dev->if_port = 0; | |
152 | else { | |
153 | tp->nwayset = 0; | |
154 | if ((csr12 & 2) == 0 && (tp->sym_advertise & 0x0180)) | |
155 | dev->if_port = 3; | |
156 | } | |
157 | tp->full_duplex = (tulip_media_cap[dev->if_port] & MediaAlwaysFD) ? 1:0; | |
158 | ||
159 | if (tulip_debug > 1) { | |
160 | if (tp->nwayset) | |
161 | printk(KERN_INFO "%s: Switching to %s based on link " | |
162 | "negotiation %4.4x & %4.4x = %4.4x.\n", | |
163 | dev->name, medianame[dev->if_port], tp->sym_advertise, | |
164 | tp->lpar, negotiated); | |
165 | else | |
166 | printk(KERN_INFO "%s: Autonegotiation failed, using %s," | |
167 | " link beat status %4.4x.\n", | |
168 | dev->name, medianame[dev->if_port], csr12); | |
169 | } | |
170 | ||
171 | if (tp->mtable) { | |
172 | int i; | |
173 | for (i = 0; i < tp->mtable->leafcount; i++) | |
174 | if (tp->mtable->mleaf[i].media == dev->if_port) { | |
175 | int startup = ! ((tp->chip_id == DC21143 && tp->revision == 65)); | |
176 | tp->cur_index = i; | |
177 | tulip_select_media(dev, startup); | |
178 | setup_done = 1; | |
179 | break; | |
180 | } | |
181 | } | |
182 | if ( ! setup_done) { | |
183 | tp->csr6 = (dev->if_port & 1 ? 0x838E0000 : 0x82420000) | (tp->csr6 & 0x20ff); | |
184 | if (tp->full_duplex) | |
185 | tp->csr6 |= 0x0200; | |
186 | iowrite32(1, ioaddr + CSR13); | |
187 | } | |
188 | #if 0 /* Restart shouldn't be needed. */ | |
189 | iowrite32(tp->csr6 | RxOn, ioaddr + CSR6); | |
190 | if (tulip_debug > 2) | |
191 | printk(KERN_DEBUG "%s: Restarting Tx and Rx, CSR5 is %8.8x.\n", | |
192 | dev->name, ioread32(ioaddr + CSR5)); | |
193 | #endif | |
194 | tulip_start_rxtx(tp); | |
195 | if (tulip_debug > 2) | |
196 | printk(KERN_DEBUG "%s: Setting CSR6 %8.8x/%x CSR12 %8.8x.\n", | |
197 | dev->name, tp->csr6, ioread32(ioaddr + CSR6), | |
198 | ioread32(ioaddr + CSR12)); | |
199 | } else if ((tp->nwayset && (csr5 & 0x08000000) | |
200 | && (dev->if_port == 3 || dev->if_port == 5) | |
201 | && (csr12 & 2) == 2) || | |
202 | (tp->nway && (csr5 & (TPLnkFail)))) { | |
203 | /* Link blew? Maybe restart NWay. */ | |
204 | del_timer_sync(&tp->timer); | |
205 | t21142_start_nway(dev); | |
206 | tp->timer.expires = RUN_AT(3*HZ); | |
207 | add_timer(&tp->timer); | |
208 | } else if (dev->if_port == 3 || dev->if_port == 5) { | |
209 | if (tulip_debug > 1) | |
210 | printk(KERN_INFO"%s: 21143 %s link beat %s.\n", | |
211 | dev->name, medianame[dev->if_port], | |
212 | (csr12 & 2) ? "failed" : "good"); | |
213 | if ((csr12 & 2) && ! tp->medialock) { | |
214 | del_timer_sync(&tp->timer); | |
215 | t21142_start_nway(dev); | |
216 | tp->timer.expires = RUN_AT(3*HZ); | |
217 | add_timer(&tp->timer); | |
218 | } else if (dev->if_port == 5) | |
219 | iowrite32(ioread32(ioaddr + CSR14) & ~0x080, ioaddr + CSR14); | |
220 | } else if (dev->if_port == 0 || dev->if_port == 4) { | |
221 | if ((csr12 & 4) == 0) | |
222 | printk(KERN_INFO"%s: 21143 10baseT link beat good.\n", | |
223 | dev->name); | |
224 | } else if (!(csr12 & 4)) { /* 10mbps link beat good. */ | |
225 | if (tulip_debug) | |
226 | printk(KERN_INFO"%s: 21143 10mbps sensed media.\n", | |
227 | dev->name); | |
228 | dev->if_port = 0; | |
229 | } else if (tp->nwayset) { | |
230 | if (tulip_debug) | |
231 | printk(KERN_INFO"%s: 21143 using NWay-set %s, csr6 %8.8x.\n", | |
232 | dev->name, medianame[dev->if_port], tp->csr6); | |
233 | } else { /* 100mbps link beat good. */ | |
234 | if (tulip_debug) | |
235 | printk(KERN_INFO"%s: 21143 100baseTx sensed media.\n", | |
236 | dev->name); | |
237 | dev->if_port = 3; | |
238 | tp->csr6 = 0x838E0000 | (tp->csr6 & 0x20ff); | |
239 | iowrite32(0x0003FF7F, ioaddr + CSR14); | |
240 | iowrite32(0x0301, ioaddr + CSR12); | |
241 | tulip_restart_rxtx(tp); | |
242 | } | |
243 | } | |
244 | ||
245 |