Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* orinoco_tmd.c |
2 | * | |
3 | * Driver for Prism II devices which would usually be driven by orinoco_cs, | |
4 | * but are connected to the PCI bus by a TMD7160. | |
5 | * | |
6 | * Copyright (C) 2003 Joerg Dorchain <joerg AT dorchain.net> | |
7 | * based heavily upon orinoco_plx.c Copyright (C) 2001 Daniel Barlow | |
8 | * | |
9 | * The contents of this file are subject to the Mozilla Public License | |
10 | * Version 1.1 (the "License"); you may not use this file except in | |
11 | * compliance with the License. You may obtain a copy of the License | |
12 | * at http://www.mozilla.org/MPL/ | |
13 | * | |
14 | * Software distributed under the License is distributed on an "AS IS" | |
15 | * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See | |
16 | * the License for the specific language governing rights and | |
17 | * limitations under the License. | |
18 | * | |
19 | * Alternatively, the contents of this file may be used under the | |
20 | * terms of the GNU General Public License version 2 (the "GPL"), in | |
21 | * which case the provisions of the GPL are applicable instead of the | |
22 | * above. If you wish to allow the use of your version of this file | |
23 | * only under the terms of the GPL and not to allow others to use your | |
24 | * version of this file under the MPL, indicate your decision by | |
25 | * deleting the provisions above and replace them with the notice and | |
26 | * other provisions required by the GPL. If you do not delete the | |
27 | * provisions above, a recipient may use your version of this file | |
28 | * under either the MPL or the GPL. | |
29 | ||
30 | * Caution: this is experimental and probably buggy. For success and | |
31 | * failure reports for different cards and adaptors, see | |
32 | * orinoco_tmd_pci_id_table near the end of the file. If you have a | |
33 | * card we don't have the PCI id for, and looks like it should work, | |
34 | * drop me mail with the id and "it works"/"it doesn't work". | |
35 | * | |
36 | * Note: if everything gets detected fine but it doesn't actually send | |
37 | * or receive packets, your first port of call should probably be to | |
38 | * try newer firmware in the card. Especially if you're doing Ad-Hoc | |
39 | * modes | |
40 | * | |
41 | * The actual driving is done by orinoco.c, this is just resource | |
42 | * allocation stuff. | |
43 | * | |
44 | * This driver is modeled after the orinoco_plx driver. The main | |
45 | * difference is that the TMD chip has only IO port ranges and no | |
46 | * memory space, i.e. no access to the CIS. Compared to the PLX chip, | |
47 | * the io range functionalities are exchanged. | |
48 | * | |
49 | * Pheecom sells cards with the TMD chip as "ASIC version" | |
50 | */ | |
51 | ||
52 | #define DRIVER_NAME "orinoco_tmd" | |
53 | #define PFX DRIVER_NAME ": " | |
54 | ||
55 | #include <linux/config.h> | |
1da177e4 LT |
56 | #include <linux/module.h> |
57 | #include <linux/kernel.h> | |
58 | #include <linux/init.h> | |
ef846bf0 | 59 | #include <linux/delay.h> |
1da177e4 | 60 | #include <linux/pci.h> |
1da177e4 LT |
61 | #include <pcmcia/cisreg.h> |
62 | ||
1da177e4 LT |
63 | #include "orinoco.h" |
64 | ||
65 | #define COR_VALUE (COR_LEVEL_REQ | COR_FUNC_ENA) /* Enable PC card with interrupt in level trigger */ | |
66 | #define COR_RESET (0x80) /* reset bit in the COR register */ | |
67 | #define TMD_RESET_TIME (500) /* milliseconds */ | |
68 | ||
69 | /* Orinoco TMD specific data */ | |
70 | struct orinoco_tmd_card { | |
71 | u32 tmd_io; | |
72 | }; | |
73 | ||
74 | ||
75 | /* | |
76 | * Do a soft reset of the card using the Configuration Option Register | |
77 | */ | |
78 | static int orinoco_tmd_cor_reset(struct orinoco_private *priv) | |
79 | { | |
80 | hermes_t *hw = &priv->hw; | |
81 | struct orinoco_tmd_card *card = priv->card; | |
82 | u32 addr = card->tmd_io; | |
83 | unsigned long timeout; | |
84 | u16 reg; | |
85 | ||
86 | outb(COR_VALUE | COR_RESET, addr); | |
87 | mdelay(1); | |
88 | ||
89 | outb(COR_VALUE, addr); | |
90 | mdelay(1); | |
91 | ||
92 | /* Just in case, wait more until the card is no longer busy */ | |
93 | timeout = jiffies + (TMD_RESET_TIME * HZ / 1000); | |
94 | reg = hermes_read_regn(hw, CMD); | |
95 | while (time_before(jiffies, timeout) && (reg & HERMES_CMD_BUSY)) { | |
96 | mdelay(1); | |
97 | reg = hermes_read_regn(hw, CMD); | |
98 | } | |
99 | ||
100 | /* Did we timeout ? */ | |
101 | if (reg & HERMES_CMD_BUSY) { | |
102 | printk(KERN_ERR PFX "Busy timeout\n"); | |
103 | return -ETIMEDOUT; | |
104 | } | |
105 | ||
106 | return 0; | |
107 | } | |
108 | ||
109 | ||
110 | static int orinoco_tmd_init_one(struct pci_dev *pdev, | |
111 | const struct pci_device_id *ent) | |
112 | { | |
113 | int err = 0; | |
114 | struct orinoco_private *priv = NULL; | |
115 | struct orinoco_tmd_card *card; | |
116 | struct net_device *dev = NULL; | |
117 | void __iomem *mem; | |
118 | ||
119 | err = pci_enable_device(pdev); | |
120 | if (err) { | |
121 | printk(KERN_ERR PFX "Cannot enable PCI device\n"); | |
122 | return err; | |
123 | } | |
124 | ||
125 | err = pci_request_regions(pdev, DRIVER_NAME); | |
126 | if (err != 0) { | |
127 | printk(KERN_ERR PFX "Cannot obtain PCI resources\n"); | |
128 | goto fail_resources; | |
129 | } | |
130 | ||
131 | mem = pci_iomap(pdev, 2, 0); | |
132 | if (! mem) { | |
133 | err = -ENOMEM; | |
134 | goto fail_iomap; | |
135 | } | |
136 | ||
137 | /* Allocate network device */ | |
138 | dev = alloc_orinocodev(sizeof(*card), orinoco_tmd_cor_reset); | |
139 | if (! dev) { | |
140 | printk(KERN_ERR PFX "Cannot allocate network device\n"); | |
141 | err = -ENOMEM; | |
142 | goto fail_alloc; | |
143 | } | |
144 | ||
145 | priv = netdev_priv(dev); | |
146 | card = priv->card; | |
147 | card->tmd_io = pci_resource_start(pdev, 1); | |
148 | dev->base_addr = pci_resource_start(pdev, 2); | |
149 | SET_MODULE_OWNER(dev); | |
150 | SET_NETDEV_DEV(dev, &pdev->dev); | |
151 | ||
152 | hermes_struct_init(&priv->hw, mem, HERMES_16BIT_REGSPACING); | |
153 | ||
154 | printk(KERN_DEBUG PFX "Detected Orinoco/Prism2 TMD device " | |
155 | "at %s irq:%d, io addr:0x%lx\n", pci_name(pdev), pdev->irq, | |
156 | dev->base_addr); | |
157 | ||
158 | err = request_irq(pdev->irq, orinoco_interrupt, SA_SHIRQ, | |
159 | dev->name, dev); | |
160 | if (err) { | |
161 | printk(KERN_ERR PFX "Cannot allocate IRQ %d\n", pdev->irq); | |
162 | err = -EBUSY; | |
163 | goto fail_irq; | |
164 | } | |
165 | dev->irq = pdev->irq; | |
166 | ||
167 | err = orinoco_tmd_cor_reset(priv); | |
168 | if (err) { | |
169 | printk(KERN_ERR PFX "Initial reset failed\n"); | |
170 | goto fail; | |
171 | } | |
172 | ||
173 | err = register_netdev(dev); | |
174 | if (err) { | |
175 | printk(KERN_ERR PFX "Cannot register network device\n"); | |
176 | goto fail; | |
177 | } | |
178 | ||
179 | pci_set_drvdata(pdev, dev); | |
180 | ||
181 | return 0; | |
182 | ||
183 | fail: | |
184 | free_irq(pdev->irq, dev); | |
185 | ||
186 | fail_irq: | |
187 | pci_set_drvdata(pdev, NULL); | |
188 | free_orinocodev(dev); | |
189 | ||
190 | fail_alloc: | |
191 | pci_iounmap(pdev, mem); | |
192 | ||
193 | fail_iomap: | |
194 | pci_release_regions(pdev); | |
195 | ||
196 | fail_resources: | |
197 | pci_disable_device(pdev); | |
198 | ||
199 | return err; | |
200 | } | |
201 | ||
202 | static void __devexit orinoco_tmd_remove_one(struct pci_dev *pdev) | |
203 | { | |
204 | struct net_device *dev = pci_get_drvdata(pdev); | |
205 | struct orinoco_private *priv = dev->priv; | |
206 | ||
207 | BUG_ON(! dev); | |
208 | ||
209 | unregister_netdev(dev); | |
210 | free_irq(dev->irq, dev); | |
211 | pci_set_drvdata(pdev, NULL); | |
212 | free_orinocodev(dev); | |
213 | pci_iounmap(pdev, priv->hw.iobase); | |
214 | pci_release_regions(pdev); | |
215 | pci_disable_device(pdev); | |
216 | } | |
217 | ||
218 | ||
219 | static struct pci_device_id orinoco_tmd_pci_id_table[] = { | |
220 | {0x15e8, 0x0131, PCI_ANY_ID, PCI_ANY_ID,}, /* NDC and OEMs, e.g. pheecom */ | |
221 | {0,}, | |
222 | }; | |
223 | ||
224 | MODULE_DEVICE_TABLE(pci, orinoco_tmd_pci_id_table); | |
225 | ||
226 | static struct pci_driver orinoco_tmd_driver = { | |
227 | .name = DRIVER_NAME, | |
228 | .id_table = orinoco_tmd_pci_id_table, | |
229 | .probe = orinoco_tmd_init_one, | |
230 | .remove = __devexit_p(orinoco_tmd_remove_one), | |
231 | }; | |
232 | ||
233 | static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION | |
234 | " (Joerg Dorchain <joerg@dorchain.net>)"; | |
235 | MODULE_AUTHOR("Joerg Dorchain <joerg@dorchain.net>"); | |
236 | MODULE_DESCRIPTION("Driver for wireless LAN cards using the TMD7160 PCI bridge"); | |
237 | MODULE_LICENSE("Dual MPL/GPL"); | |
238 | ||
239 | static int __init orinoco_tmd_init(void) | |
240 | { | |
241 | printk(KERN_DEBUG "%s\n", version); | |
242 | return pci_module_init(&orinoco_tmd_driver); | |
243 | } | |
244 | ||
245 | static void __exit orinoco_tmd_exit(void) | |
246 | { | |
247 | pci_unregister_driver(&orinoco_tmd_driver); | |
248 | ssleep(1); | |
249 | } | |
250 | ||
251 | module_init(orinoco_tmd_init); | |
252 | module_exit(orinoco_tmd_exit); | |
253 | ||
254 | /* | |
255 | * Local variables: | |
256 | * c-indent-level: 8 | |
257 | * c-basic-offset: 8 | |
258 | * tab-width: 8 | |
259 | * End: | |
260 | */ |