Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* orinoco_tmd.c |
b884c872 | 2 | * |
1da177e4 LT |
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. | |
1da177e4 LT |
29 | * |
30 | * The actual driving is done by orinoco.c, this is just resource | |
31 | * allocation stuff. | |
32 | * | |
33 | * This driver is modeled after the orinoco_plx driver. The main | |
dc3437d2 PR |
34 | * difference is that the TMD chip has only IO port ranges and doesn't |
35 | * provide access to the PCMCIA attribute space. | |
1da177e4 LT |
36 | * |
37 | * Pheecom sells cards with the TMD chip as "ASIC version" | |
38 | */ | |
39 | ||
40 | #define DRIVER_NAME "orinoco_tmd" | |
41 | #define PFX DRIVER_NAME ": " | |
42 | ||
43 | #include <linux/config.h> | |
1da177e4 LT |
44 | #include <linux/module.h> |
45 | #include <linux/kernel.h> | |
46 | #include <linux/init.h> | |
ef846bf0 | 47 | #include <linux/delay.h> |
1da177e4 | 48 | #include <linux/pci.h> |
1da177e4 LT |
49 | #include <pcmcia/cisreg.h> |
50 | ||
1da177e4 | 51 | #include "orinoco.h" |
b884c872 | 52 | #include "orinoco_pci.h" |
1da177e4 LT |
53 | |
54 | #define COR_VALUE (COR_LEVEL_REQ | COR_FUNC_ENA) /* Enable PC card with interrupt in level trigger */ | |
55 | #define COR_RESET (0x80) /* reset bit in the COR register */ | |
56 | #define TMD_RESET_TIME (500) /* milliseconds */ | |
57 | ||
1da177e4 LT |
58 | /* |
59 | * Do a soft reset of the card using the Configuration Option Register | |
60 | */ | |
61 | static int orinoco_tmd_cor_reset(struct orinoco_private *priv) | |
62 | { | |
63 | hermes_t *hw = &priv->hw; | |
b884c872 | 64 | struct orinoco_pci_card *card = priv->card; |
1da177e4 LT |
65 | unsigned long timeout; |
66 | u16 reg; | |
67 | ||
b884c872 | 68 | iowrite8(COR_VALUE | COR_RESET, card->bridge_io); |
1da177e4 LT |
69 | mdelay(1); |
70 | ||
b884c872 | 71 | iowrite8(COR_VALUE, card->bridge_io); |
1da177e4 LT |
72 | mdelay(1); |
73 | ||
74 | /* Just in case, wait more until the card is no longer busy */ | |
75 | timeout = jiffies + (TMD_RESET_TIME * HZ / 1000); | |
76 | reg = hermes_read_regn(hw, CMD); | |
77 | while (time_before(jiffies, timeout) && (reg & HERMES_CMD_BUSY)) { | |
78 | mdelay(1); | |
79 | reg = hermes_read_regn(hw, CMD); | |
80 | } | |
81 | ||
b884c872 | 82 | /* Still busy? */ |
1da177e4 LT |
83 | if (reg & HERMES_CMD_BUSY) { |
84 | printk(KERN_ERR PFX "Busy timeout\n"); | |
85 | return -ETIMEDOUT; | |
86 | } | |
87 | ||
88 | return 0; | |
89 | } | |
90 | ||
91 | ||
92 | static int orinoco_tmd_init_one(struct pci_dev *pdev, | |
93 | const struct pci_device_id *ent) | |
94 | { | |
b884c872 PR |
95 | int err; |
96 | struct orinoco_private *priv; | |
97 | struct orinoco_pci_card *card; | |
98 | struct net_device *dev; | |
99 | void __iomem *hermes_io, *bridge_io; | |
1da177e4 LT |
100 | |
101 | err = pci_enable_device(pdev); | |
102 | if (err) { | |
103 | printk(KERN_ERR PFX "Cannot enable PCI device\n"); | |
104 | return err; | |
105 | } | |
106 | ||
107 | err = pci_request_regions(pdev, DRIVER_NAME); | |
b884c872 | 108 | if (err) { |
1da177e4 LT |
109 | printk(KERN_ERR PFX "Cannot obtain PCI resources\n"); |
110 | goto fail_resources; | |
111 | } | |
112 | ||
b884c872 PR |
113 | bridge_io = pci_iomap(pdev, 1, 0); |
114 | if (!bridge_io) { | |
115 | printk(KERN_ERR PFX "Cannot map bridge registers\n"); | |
116 | err = -EIO; | |
117 | goto fail_map_bridge; | |
118 | } | |
119 | ||
120 | hermes_io = pci_iomap(pdev, 2, 0); | |
121 | if (!hermes_io) { | |
122 | printk(KERN_ERR PFX "Cannot map chipset registers\n"); | |
123 | err = -EIO; | |
124 | goto fail_map_hermes; | |
1da177e4 LT |
125 | } |
126 | ||
127 | /* Allocate network device */ | |
128 | dev = alloc_orinocodev(sizeof(*card), orinoco_tmd_cor_reset); | |
b884c872 | 129 | if (!dev) { |
1da177e4 LT |
130 | printk(KERN_ERR PFX "Cannot allocate network device\n"); |
131 | err = -ENOMEM; | |
132 | goto fail_alloc; | |
133 | } | |
134 | ||
135 | priv = netdev_priv(dev); | |
136 | card = priv->card; | |
b884c872 | 137 | card->bridge_io = bridge_io; |
1da177e4 LT |
138 | SET_MODULE_OWNER(dev); |
139 | SET_NETDEV_DEV(dev, &pdev->dev); | |
140 | ||
b884c872 | 141 | hermes_struct_init(&priv->hw, hermes_io, HERMES_16BIT_REGSPACING); |
1da177e4 LT |
142 | |
143 | err = request_irq(pdev->irq, orinoco_interrupt, SA_SHIRQ, | |
144 | dev->name, dev); | |
145 | if (err) { | |
146 | printk(KERN_ERR PFX "Cannot allocate IRQ %d\n", pdev->irq); | |
147 | err = -EBUSY; | |
148 | goto fail_irq; | |
149 | } | |
1da177e4 LT |
150 | |
151 | err = orinoco_tmd_cor_reset(priv); | |
152 | if (err) { | |
153 | printk(KERN_ERR PFX "Initial reset failed\n"); | |
154 | goto fail; | |
155 | } | |
156 | ||
157 | err = register_netdev(dev); | |
158 | if (err) { | |
159 | printk(KERN_ERR PFX "Cannot register network device\n"); | |
160 | goto fail; | |
161 | } | |
162 | ||
163 | pci_set_drvdata(pdev, dev); | |
461c078c PR |
164 | printk(KERN_DEBUG "%s: " DRIVER_NAME " at %s\n", dev->name, |
165 | pci_name(pdev)); | |
1da177e4 LT |
166 | |
167 | return 0; | |
168 | ||
169 | fail: | |
170 | free_irq(pdev->irq, dev); | |
171 | ||
172 | fail_irq: | |
173 | pci_set_drvdata(pdev, NULL); | |
174 | free_orinocodev(dev); | |
175 | ||
176 | fail_alloc: | |
b884c872 | 177 | pci_iounmap(pdev, hermes_io); |
1da177e4 | 178 | |
b884c872 PR |
179 | fail_map_hermes: |
180 | pci_iounmap(pdev, bridge_io); | |
181 | ||
182 | fail_map_bridge: | |
1da177e4 LT |
183 | pci_release_regions(pdev); |
184 | ||
185 | fail_resources: | |
186 | pci_disable_device(pdev); | |
187 | ||
188 | return err; | |
189 | } | |
190 | ||
191 | static void __devexit orinoco_tmd_remove_one(struct pci_dev *pdev) | |
192 | { | |
193 | struct net_device *dev = pci_get_drvdata(pdev); | |
194 | struct orinoco_private *priv = dev->priv; | |
b884c872 | 195 | struct orinoco_pci_card *card = priv->card; |
1da177e4 LT |
196 | |
197 | unregister_netdev(dev); | |
461c078c | 198 | free_irq(pdev->irq, dev); |
1da177e4 LT |
199 | pci_set_drvdata(pdev, NULL); |
200 | free_orinocodev(dev); | |
201 | pci_iounmap(pdev, priv->hw.iobase); | |
b884c872 | 202 | pci_iounmap(pdev, card->bridge_io); |
1da177e4 LT |
203 | pci_release_regions(pdev); |
204 | pci_disable_device(pdev); | |
205 | } | |
206 | ||
b884c872 | 207 | static struct pci_device_id orinoco_tmd_id_table[] = { |
1da177e4 LT |
208 | {0x15e8, 0x0131, PCI_ANY_ID, PCI_ANY_ID,}, /* NDC and OEMs, e.g. pheecom */ |
209 | {0,}, | |
210 | }; | |
211 | ||
b884c872 | 212 | MODULE_DEVICE_TABLE(pci, orinoco_tmd_id_table); |
1da177e4 LT |
213 | |
214 | static struct pci_driver orinoco_tmd_driver = { | |
215 | .name = DRIVER_NAME, | |
b884c872 | 216 | .id_table = orinoco_tmd_id_table, |
1da177e4 LT |
217 | .probe = orinoco_tmd_init_one, |
218 | .remove = __devexit_p(orinoco_tmd_remove_one), | |
b884c872 PR |
219 | .suspend = orinoco_pci_suspend, |
220 | .resume = orinoco_pci_resume, | |
1da177e4 LT |
221 | }; |
222 | ||
223 | static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION | |
224 | " (Joerg Dorchain <joerg@dorchain.net>)"; | |
225 | MODULE_AUTHOR("Joerg Dorchain <joerg@dorchain.net>"); | |
226 | MODULE_DESCRIPTION("Driver for wireless LAN cards using the TMD7160 PCI bridge"); | |
227 | MODULE_LICENSE("Dual MPL/GPL"); | |
228 | ||
229 | static int __init orinoco_tmd_init(void) | |
230 | { | |
231 | printk(KERN_DEBUG "%s\n", version); | |
232 | return pci_module_init(&orinoco_tmd_driver); | |
233 | } | |
234 | ||
235 | static void __exit orinoco_tmd_exit(void) | |
236 | { | |
237 | pci_unregister_driver(&orinoco_tmd_driver); | |
1da177e4 LT |
238 | } |
239 | ||
240 | module_init(orinoco_tmd_init); | |
241 | module_exit(orinoco_tmd_exit); | |
242 | ||
243 | /* | |
244 | * Local variables: | |
245 | * c-indent-level: 8 | |
246 | * c-basic-offset: 8 | |
247 | * tab-width: 8 | |
248 | * End: | |
249 | */ |