Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* orinoco_tmd.c |
Pavel Roskin | b884c87 | 2006-04-07 04:10:57 -0400 | [diff] [blame] | 2 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Pavel Roskin | dc3437d | 2006-04-07 04:11:00 -0400 | [diff] [blame] | 34 | * difference is that the TMD chip has only IO port ranges and doesn't |
| 35 | * provide access to the PCMCIA attribute space. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | #include <linux/module.h> |
| 44 | #include <linux/kernel.h> |
| 45 | #include <linux/init.h> |
Pavel Roskin | ef846bf | 2005-09-23 04:18:07 -0400 | [diff] [blame] | 46 | #include <linux/delay.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | #include <linux/pci.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | #include <pcmcia/cisreg.h> |
| 49 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | #include "orinoco.h" |
Pavel Roskin | b884c87 | 2006-04-07 04:10:57 -0400 | [diff] [blame] | 51 | #include "orinoco_pci.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | |
| 53 | #define COR_VALUE (COR_LEVEL_REQ | COR_FUNC_ENA) /* Enable PC card with interrupt in level trigger */ |
| 54 | #define COR_RESET (0x80) /* reset bit in the COR register */ |
| 55 | #define TMD_RESET_TIME (500) /* milliseconds */ |
| 56 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | /* |
| 58 | * Do a soft reset of the card using the Configuration Option Register |
| 59 | */ |
| 60 | static int orinoco_tmd_cor_reset(struct orinoco_private *priv) |
| 61 | { |
| 62 | hermes_t *hw = &priv->hw; |
Pavel Roskin | b884c87 | 2006-04-07 04:10:57 -0400 | [diff] [blame] | 63 | struct orinoco_pci_card *card = priv->card; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 64 | unsigned long timeout; |
| 65 | u16 reg; |
| 66 | |
Pavel Roskin | b884c87 | 2006-04-07 04:10:57 -0400 | [diff] [blame] | 67 | iowrite8(COR_VALUE | COR_RESET, card->bridge_io); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | mdelay(1); |
| 69 | |
Pavel Roskin | b884c87 | 2006-04-07 04:10:57 -0400 | [diff] [blame] | 70 | iowrite8(COR_VALUE, card->bridge_io); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | mdelay(1); |
| 72 | |
| 73 | /* Just in case, wait more until the card is no longer busy */ |
| 74 | timeout = jiffies + (TMD_RESET_TIME * HZ / 1000); |
| 75 | reg = hermes_read_regn(hw, CMD); |
| 76 | while (time_before(jiffies, timeout) && (reg & HERMES_CMD_BUSY)) { |
| 77 | mdelay(1); |
| 78 | reg = hermes_read_regn(hw, CMD); |
| 79 | } |
| 80 | |
Pavel Roskin | b884c87 | 2006-04-07 04:10:57 -0400 | [diff] [blame] | 81 | /* Still busy? */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | if (reg & HERMES_CMD_BUSY) { |
| 83 | printk(KERN_ERR PFX "Busy timeout\n"); |
| 84 | return -ETIMEDOUT; |
| 85 | } |
| 86 | |
| 87 | return 0; |
| 88 | } |
| 89 | |
| 90 | |
| 91 | static int orinoco_tmd_init_one(struct pci_dev *pdev, |
| 92 | const struct pci_device_id *ent) |
| 93 | { |
Pavel Roskin | b884c87 | 2006-04-07 04:10:57 -0400 | [diff] [blame] | 94 | int err; |
| 95 | struct orinoco_private *priv; |
| 96 | struct orinoco_pci_card *card; |
| 97 | struct net_device *dev; |
| 98 | void __iomem *hermes_io, *bridge_io; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | |
| 100 | err = pci_enable_device(pdev); |
| 101 | if (err) { |
| 102 | printk(KERN_ERR PFX "Cannot enable PCI device\n"); |
| 103 | return err; |
| 104 | } |
| 105 | |
| 106 | err = pci_request_regions(pdev, DRIVER_NAME); |
Pavel Roskin | b884c87 | 2006-04-07 04:10:57 -0400 | [diff] [blame] | 107 | if (err) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | printk(KERN_ERR PFX "Cannot obtain PCI resources\n"); |
| 109 | goto fail_resources; |
| 110 | } |
| 111 | |
Pavel Roskin | b884c87 | 2006-04-07 04:10:57 -0400 | [diff] [blame] | 112 | bridge_io = pci_iomap(pdev, 1, 0); |
| 113 | if (!bridge_io) { |
| 114 | printk(KERN_ERR PFX "Cannot map bridge registers\n"); |
| 115 | err = -EIO; |
| 116 | goto fail_map_bridge; |
| 117 | } |
| 118 | |
| 119 | hermes_io = pci_iomap(pdev, 2, 0); |
| 120 | if (!hermes_io) { |
| 121 | printk(KERN_ERR PFX "Cannot map chipset registers\n"); |
| 122 | err = -EIO; |
| 123 | goto fail_map_hermes; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | } |
| 125 | |
| 126 | /* Allocate network device */ |
| 127 | dev = alloc_orinocodev(sizeof(*card), orinoco_tmd_cor_reset); |
Pavel Roskin | b884c87 | 2006-04-07 04:10:57 -0400 | [diff] [blame] | 128 | if (!dev) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | printk(KERN_ERR PFX "Cannot allocate network device\n"); |
| 130 | err = -ENOMEM; |
| 131 | goto fail_alloc; |
| 132 | } |
| 133 | |
| 134 | priv = netdev_priv(dev); |
| 135 | card = priv->card; |
Pavel Roskin | b884c87 | 2006-04-07 04:10:57 -0400 | [diff] [blame] | 136 | card->bridge_io = bridge_io; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | SET_MODULE_OWNER(dev); |
| 138 | SET_NETDEV_DEV(dev, &pdev->dev); |
| 139 | |
Pavel Roskin | b884c87 | 2006-04-07 04:10:57 -0400 | [diff] [blame] | 140 | hermes_struct_init(&priv->hw, hermes_io, HERMES_16BIT_REGSPACING); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | |
Thomas Gleixner | 1fb9df5 | 2006-07-01 19:29:39 -0700 | [diff] [blame] | 142 | err = request_irq(pdev->irq, orinoco_interrupt, IRQF_SHARED, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | dev->name, dev); |
| 144 | if (err) { |
| 145 | printk(KERN_ERR PFX "Cannot allocate IRQ %d\n", pdev->irq); |
| 146 | err = -EBUSY; |
| 147 | goto fail_irq; |
| 148 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | |
| 150 | err = orinoco_tmd_cor_reset(priv); |
| 151 | if (err) { |
| 152 | printk(KERN_ERR PFX "Initial reset failed\n"); |
| 153 | goto fail; |
| 154 | } |
| 155 | |
| 156 | err = register_netdev(dev); |
| 157 | if (err) { |
| 158 | printk(KERN_ERR PFX "Cannot register network device\n"); |
| 159 | goto fail; |
| 160 | } |
| 161 | |
| 162 | pci_set_drvdata(pdev, dev); |
Pavel Roskin | 461c078 | 2006-05-01 02:13:33 -0400 | [diff] [blame] | 163 | printk(KERN_DEBUG "%s: " DRIVER_NAME " at %s\n", dev->name, |
| 164 | pci_name(pdev)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | |
| 166 | return 0; |
| 167 | |
| 168 | fail: |
| 169 | free_irq(pdev->irq, dev); |
| 170 | |
| 171 | fail_irq: |
| 172 | pci_set_drvdata(pdev, NULL); |
| 173 | free_orinocodev(dev); |
| 174 | |
| 175 | fail_alloc: |
Pavel Roskin | b884c87 | 2006-04-07 04:10:57 -0400 | [diff] [blame] | 176 | pci_iounmap(pdev, hermes_io); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | |
Pavel Roskin | b884c87 | 2006-04-07 04:10:57 -0400 | [diff] [blame] | 178 | fail_map_hermes: |
| 179 | pci_iounmap(pdev, bridge_io); |
| 180 | |
| 181 | fail_map_bridge: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | pci_release_regions(pdev); |
| 183 | |
| 184 | fail_resources: |
| 185 | pci_disable_device(pdev); |
| 186 | |
| 187 | return err; |
| 188 | } |
| 189 | |
| 190 | static void __devexit orinoco_tmd_remove_one(struct pci_dev *pdev) |
| 191 | { |
| 192 | struct net_device *dev = pci_get_drvdata(pdev); |
| 193 | struct orinoco_private *priv = dev->priv; |
Pavel Roskin | b884c87 | 2006-04-07 04:10:57 -0400 | [diff] [blame] | 194 | struct orinoco_pci_card *card = priv->card; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | |
| 196 | unregister_netdev(dev); |
Pavel Roskin | 461c078 | 2006-05-01 02:13:33 -0400 | [diff] [blame] | 197 | free_irq(pdev->irq, dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | pci_set_drvdata(pdev, NULL); |
| 199 | free_orinocodev(dev); |
| 200 | pci_iounmap(pdev, priv->hw.iobase); |
Pavel Roskin | b884c87 | 2006-04-07 04:10:57 -0400 | [diff] [blame] | 201 | pci_iounmap(pdev, card->bridge_io); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | pci_release_regions(pdev); |
| 203 | pci_disable_device(pdev); |
| 204 | } |
| 205 | |
Pavel Roskin | b884c87 | 2006-04-07 04:10:57 -0400 | [diff] [blame] | 206 | static struct pci_device_id orinoco_tmd_id_table[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | {0x15e8, 0x0131, PCI_ANY_ID, PCI_ANY_ID,}, /* NDC and OEMs, e.g. pheecom */ |
| 208 | {0,}, |
| 209 | }; |
| 210 | |
Pavel Roskin | b884c87 | 2006-04-07 04:10:57 -0400 | [diff] [blame] | 211 | MODULE_DEVICE_TABLE(pci, orinoco_tmd_id_table); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | |
| 213 | static struct pci_driver orinoco_tmd_driver = { |
| 214 | .name = DRIVER_NAME, |
Pavel Roskin | b884c87 | 2006-04-07 04:10:57 -0400 | [diff] [blame] | 215 | .id_table = orinoco_tmd_id_table, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | .probe = orinoco_tmd_init_one, |
| 217 | .remove = __devexit_p(orinoco_tmd_remove_one), |
Pavel Roskin | b884c87 | 2006-04-07 04:10:57 -0400 | [diff] [blame] | 218 | .suspend = orinoco_pci_suspend, |
| 219 | .resume = orinoco_pci_resume, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | }; |
| 221 | |
| 222 | static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION |
| 223 | " (Joerg Dorchain <joerg@dorchain.net>)"; |
| 224 | MODULE_AUTHOR("Joerg Dorchain <joerg@dorchain.net>"); |
| 225 | MODULE_DESCRIPTION("Driver for wireless LAN cards using the TMD7160 PCI bridge"); |
| 226 | MODULE_LICENSE("Dual MPL/GPL"); |
| 227 | |
| 228 | static int __init orinoco_tmd_init(void) |
| 229 | { |
| 230 | printk(KERN_DEBUG "%s\n", version); |
Jeff Garzik | 2991762 | 2006-08-19 17:48:59 -0400 | [diff] [blame] | 231 | return pci_register_driver(&orinoco_tmd_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | } |
| 233 | |
| 234 | static void __exit orinoco_tmd_exit(void) |
| 235 | { |
| 236 | pci_unregister_driver(&orinoco_tmd_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | } |
| 238 | |
| 239 | module_init(orinoco_tmd_init); |
| 240 | module_exit(orinoco_tmd_exit); |
| 241 | |
| 242 | /* |
| 243 | * Local variables: |
| 244 | * c-indent-level: 8 |
| 245 | * c-basic-offset: 8 |
| 246 | * tab-width: 8 |
| 247 | * End: |
| 248 | */ |