Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /*====================================================================== |
| 2 | |
| 3 | A PCMCIA token-ring driver for IBM-based cards |
| 4 | |
| 5 | This driver supports the IBM PCMCIA Token-Ring Card. |
| 6 | Written by Steve Kipisz, kipisz@vnet.ibm.com or |
| 7 | bungy@ibm.net |
| 8 | |
| 9 | Written 1995,1996. |
| 10 | |
| 11 | This code is based on pcnet_cs.c from David Hinds. |
| 12 | |
| 13 | V2.2.0 February 1999 - Mike Phillips phillim@amtrak.com |
| 14 | |
| 15 | Linux V2.2.x presented significant changes to the underlying |
| 16 | ibmtr.c code. Mainly the code became a lot more organized and |
| 17 | modular. |
| 18 | |
| 19 | This caused the old PCMCIA Token Ring driver to give up and go |
| 20 | home early. Instead of just patching the old code to make it |
| 21 | work, the PCMCIA code has been streamlined, updated and possibly |
| 22 | improved. |
| 23 | |
| 24 | This code now only contains code required for the Card Services. |
| 25 | All we do here is set the card up enough so that the real ibmtr.c |
| 26 | driver can find it and work with it properly. |
| 27 | |
| 28 | i.e. We set up the io port, irq, mmio memory and shared ram |
| 29 | memory. This enables ibmtr_probe in ibmtr.c to find the card and |
| 30 | configure it as though it was a normal ISA and/or PnP card. |
| 31 | |
| 32 | CHANGES |
| 33 | |
| 34 | v2.2.5 April 1999 Mike Phillips (phillim@amtrak.com) |
| 35 | Obscure bug fix, required changed to ibmtr.c not ibmtr_cs.c |
| 36 | |
| 37 | v2.2.7 May 1999 Mike Phillips (phillim@amtrak.com) |
| 38 | Updated to version 2.2.7 to match the first version of the kernel |
| 39 | that the modification to ibmtr.c were incorporated into. |
| 40 | |
| 41 | v2.2.17 July 2000 Burt Silverman (burts@us.ibm.com) |
| 42 | Address translation feature of PCMCIA controller is usable so |
| 43 | memory windows can be placed in High memory (meaning above |
| 44 | 0xFFFFF.) |
| 45 | |
| 46 | ======================================================================*/ |
| 47 | |
| 48 | #include <linux/kernel.h> |
| 49 | #include <linux/init.h> |
| 50 | #include <linux/ptrace.h> |
| 51 | #include <linux/slab.h> |
| 52 | #include <linux/string.h> |
| 53 | #include <linux/timer.h> |
| 54 | #include <linux/module.h> |
| 55 | #include <linux/ethtool.h> |
| 56 | #include <linux/netdevice.h> |
| 57 | #include <linux/trdevice.h> |
| 58 | #include <linux/ibmtr.h> |
| 59 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | #include <pcmcia/cs_types.h> |
| 61 | #include <pcmcia/cs.h> |
| 62 | #include <pcmcia/cistpl.h> |
| 63 | #include <pcmcia/ds.h> |
| 64 | |
| 65 | #include <asm/uaccess.h> |
| 66 | #include <asm/io.h> |
| 67 | #include <asm/system.h> |
| 68 | |
| 69 | #define PCMCIA |
| 70 | #include "../tokenring/ibmtr.c" |
| 71 | |
| 72 | #ifdef PCMCIA_DEBUG |
| 73 | static int pc_debug = PCMCIA_DEBUG; |
| 74 | module_param(pc_debug, int, 0); |
| 75 | #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args) |
| 76 | static char *version = |
| 77 | "ibmtr_cs.c 1.10 1996/01/06 05:19:00 (Steve Kipisz)\n" |
| 78 | " 2.2.7 1999/05/03 12:00:00 (Mike Phillips)\n" |
| 79 | " 2.4.2 2001/30/28 Midnight (Burt Silverman)\n"; |
| 80 | #else |
| 81 | #define DEBUG(n, args...) |
| 82 | #endif |
| 83 | |
| 84 | /*====================================================================*/ |
| 85 | |
| 86 | /* Parameters that can be set with 'insmod' */ |
| 87 | |
| 88 | /* MMIO base address */ |
| 89 | static u_long mmiobase = 0xce000; |
| 90 | |
| 91 | /* SRAM base address */ |
| 92 | static u_long srambase = 0xd0000; |
| 93 | |
| 94 | /* SRAM size 8,16,32,64 */ |
| 95 | static u_long sramsize = 64; |
| 96 | |
| 97 | /* Ringspeed 4,16 */ |
| 98 | static int ringspeed = 16; |
| 99 | |
| 100 | module_param(mmiobase, ulong, 0); |
| 101 | module_param(srambase, ulong, 0); |
| 102 | module_param(sramsize, ulong, 0); |
| 103 | module_param(ringspeed, int, 0); |
| 104 | MODULE_LICENSE("GPL"); |
| 105 | |
| 106 | /*====================================================================*/ |
| 107 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 108 | static int ibmtr_config(struct pcmcia_device *link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | static void ibmtr_hw_setup(struct net_device *dev, u_int mmiobase); |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 110 | static void ibmtr_release(struct pcmcia_device *link); |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 111 | static void ibmtr_detach(struct pcmcia_device *p_dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | /*====================================================================*/ |
| 114 | |
| 115 | typedef struct ibmtr_dev_t { |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 116 | struct pcmcia_device *p_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | struct net_device *dev; |
| 118 | dev_node_t node; |
| 119 | window_handle_t sram_win_handle; |
| 120 | struct tok_info *ti; |
| 121 | } ibmtr_dev_t; |
| 122 | |
| 123 | static void netdev_get_drvinfo(struct net_device *dev, |
| 124 | struct ethtool_drvinfo *info) |
| 125 | { |
| 126 | strcpy(info->driver, "ibmtr_cs"); |
| 127 | } |
| 128 | |
Jeff Garzik | 7282d49 | 2006-09-13 14:30:00 -0400 | [diff] [blame] | 129 | static const struct ethtool_ops netdev_ethtool_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | .get_drvinfo = netdev_get_drvinfo, |
| 131 | }; |
| 132 | |
| 133 | /*====================================================================== |
| 134 | |
| 135 | ibmtr_attach() creates an "instance" of the driver, allocating |
| 136 | local data structures for one device. The device is registered |
| 137 | with Card Services. |
| 138 | |
| 139 | ======================================================================*/ |
| 140 | |
Al Viro | abf0437 | 2007-03-14 09:04:21 +0000 | [diff] [blame] | 141 | static int __devinit ibmtr_attach(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | { |
| 143 | ibmtr_dev_t *info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | struct net_device *dev; |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 145 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | DEBUG(0, "ibmtr_attach()\n"); |
| 147 | |
| 148 | /* Create new token-ring device */ |
Yoann Padioleau | dd00cc4 | 2007-07-19 01:49:03 -0700 | [diff] [blame] | 149 | info = kzalloc(sizeof(*info), GFP_KERNEL); |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 150 | if (!info) return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | dev = alloc_trdev(sizeof(struct tok_info)); |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 152 | if (!dev) { |
| 153 | kfree(info); |
| 154 | return -ENOMEM; |
| 155 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 157 | info->p_dev = link; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | link->priv = info; |
| 159 | info->ti = netdev_priv(dev); |
| 160 | |
| 161 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; |
| 162 | link->io.NumPorts1 = 4; |
| 163 | link->io.IOAddrLines = 16; |
| 164 | link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; |
| 165 | link->irq.IRQInfo1 = IRQ_LEVEL_ID; |
| 166 | link->irq.Handler = &tok_interrupt; |
| 167 | link->conf.Attributes = CONF_ENABLE_IRQ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | link->conf.IntType = INT_MEMORY_AND_IO; |
| 169 | link->conf.Present = PRESENT_OPTION; |
| 170 | |
| 171 | link->irq.Instance = info->dev = dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 173 | SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 175 | return ibmtr_config(link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | } /* ibmtr_attach */ |
| 177 | |
| 178 | /*====================================================================== |
| 179 | |
| 180 | This deletes a driver "instance". The device is de-registered |
| 181 | with Card Services. If it has been released, all local data |
| 182 | structures are freed. Otherwise, the structures will be freed |
| 183 | when the device is released. |
| 184 | |
| 185 | ======================================================================*/ |
| 186 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 187 | static void ibmtr_detach(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | { |
| 189 | struct ibmtr_dev_t *info = link->priv; |
Dominik Brodowski | b463581 | 2005-11-14 21:25:35 +0100 | [diff] [blame] | 190 | struct net_device *dev = info->dev; |
Paul Walmsley | 5bebf82 | 2007-05-09 10:47:16 -0600 | [diff] [blame] | 191 | struct tok_info *ti = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | |
| 193 | DEBUG(0, "ibmtr_detach(0x%p)\n", link); |
Paul Walmsley | 5bebf82 | 2007-05-09 10:47:16 -0600 | [diff] [blame] | 194 | |
| 195 | /* |
| 196 | * When the card removal interrupt hits tok_interrupt(), |
| 197 | * bail out early, so we don't crash the machine |
| 198 | */ |
| 199 | ti->sram_phys |= 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 201 | if (link->dev_node) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | unregister_netdev(dev); |
Paul Walmsley | 5bebf82 | 2007-05-09 10:47:16 -0600 | [diff] [blame] | 203 | |
| 204 | del_timer_sync(&(ti->tr_timer)); |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 205 | |
| 206 | ibmtr_release(link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | free_netdev(dev); |
Dominik Brodowski | b463581 | 2005-11-14 21:25:35 +0100 | [diff] [blame] | 209 | kfree(info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | } /* ibmtr_detach */ |
| 211 | |
| 212 | /*====================================================================== |
| 213 | |
| 214 | ibmtr_config() is scheduled to run after a CARD_INSERTION event |
| 215 | is received, to configure the PCMCIA socket, and to make the |
| 216 | token-ring device available to the system. |
| 217 | |
| 218 | ======================================================================*/ |
| 219 | |
| 220 | #define CS_CHECK(fn, ret) \ |
| 221 | do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) |
| 222 | |
Al Viro | abf0437 | 2007-03-14 09:04:21 +0000 | [diff] [blame] | 223 | static int __devinit ibmtr_config(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | ibmtr_dev_t *info = link->priv; |
| 226 | struct net_device *dev = info->dev; |
| 227 | struct tok_info *ti = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | win_req_t req; |
| 229 | memreq_t mem; |
| 230 | int i, last_ret, last_fn; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | |
| 232 | DEBUG(0, "ibmtr_config(0x%p)\n", link); |
| 233 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | link->conf.ConfigIndex = 0x61; |
| 235 | |
| 236 | /* Determine if this is PRIMARY or ALTERNATE. */ |
| 237 | |
| 238 | /* Try PRIMARY card at 0xA20-0xA23 */ |
| 239 | link->io.BasePort1 = 0xA20; |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 240 | i = pcmcia_request_io(link, &link->io); |
Dominik Brodowski | 4c89e88 | 2008-08-03 10:07:45 +0200 | [diff] [blame] | 241 | if (i != 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | /* Couldn't get 0xA20-0xA23. Try ALTERNATE at 0xA24-0xA27. */ |
| 243 | link->io.BasePort1 = 0xA24; |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 244 | CS_CHECK(RequestIO, pcmcia_request_io(link, &link->io)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | } |
| 246 | dev->base_addr = link->io.BasePort1; |
| 247 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 248 | CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | dev->irq = link->irq.AssignedIRQ; |
| 250 | ti->irq = link->irq.AssignedIRQ; |
| 251 | ti->global_int_enable=GLOBAL_INT_ENABLE+((dev->irq==9) ? 2 : dev->irq); |
| 252 | |
| 253 | /* Allocate the MMIO memory window */ |
| 254 | req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM|WIN_ENABLE; |
| 255 | req.Attributes |= WIN_USE_WAIT; |
| 256 | req.Base = 0; |
| 257 | req.Size = 0x2000; |
| 258 | req.AccessSpeed = 250; |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 259 | CS_CHECK(RequestWindow, pcmcia_request_window(&link, &req, &link->win)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | |
| 261 | mem.CardOffset = mmiobase; |
| 262 | mem.Page = 0; |
| 263 | CS_CHECK(MapMemPage, pcmcia_map_mem_page(link->win, &mem)); |
| 264 | ti->mmio = ioremap(req.Base, req.Size); |
| 265 | |
| 266 | /* Allocate the SRAM memory window */ |
| 267 | req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM|WIN_ENABLE; |
| 268 | req.Attributes |= WIN_USE_WAIT; |
| 269 | req.Base = 0; |
| 270 | req.Size = sramsize * 1024; |
| 271 | req.AccessSpeed = 250; |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 272 | CS_CHECK(RequestWindow, pcmcia_request_window(&link, &req, &info->sram_win_handle)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 273 | |
| 274 | mem.CardOffset = srambase; |
| 275 | mem.Page = 0; |
| 276 | CS_CHECK(MapMemPage, pcmcia_map_mem_page(info->sram_win_handle, &mem)); |
| 277 | |
| 278 | ti->sram_base = mem.CardOffset >> 12; |
| 279 | ti->sram_virt = ioremap(req.Base, req.Size); |
| 280 | ti->sram_phys = req.Base; |
| 281 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 282 | CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | |
| 284 | /* Set up the Token-Ring Controller Configuration Register and |
| 285 | turn on the card. Check the "Local Area Network Credit Card |
| 286 | Adapters Technical Reference" SC30-3585 for this info. */ |
| 287 | ibmtr_hw_setup(dev, mmiobase); |
| 288 | |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 289 | link->dev_node = &info->node; |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 290 | SET_NETDEV_DEV(dev, &handle_to_dev(link)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | |
| 292 | i = ibmtr_probe_card(dev); |
| 293 | if (i != 0) { |
| 294 | printk(KERN_NOTICE "ibmtr_cs: register_netdev() failed\n"); |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 295 | link->dev_node = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | goto failed; |
| 297 | } |
| 298 | |
| 299 | strcpy(info->node.dev_name, dev->name); |
| 300 | |
Joe Perches | ad361c9 | 2009-07-06 13:05:40 -0700 | [diff] [blame] | 301 | printk(KERN_INFO |
| 302 | "%s: port %#3lx, irq %d, mmio %#5lx, sram %#5lx, hwaddr=%pM\n", |
| 303 | dev->name, dev->base_addr, dev->irq, |
| 304 | (u_long)ti->mmio, (u_long)(ti->sram_base << 12), |
| 305 | dev->dev_addr); |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 306 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | |
| 308 | cs_failed: |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 309 | cs_error(link, last_fn, last_ret); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | failed: |
| 311 | ibmtr_release(link); |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 312 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | } /* ibmtr_config */ |
| 314 | |
| 315 | /*====================================================================== |
| 316 | |
| 317 | After a card is removed, ibmtr_release() will unregister the net |
| 318 | device, and release the PCMCIA configuration. If the device is |
| 319 | still open, this will be postponed until it is closed. |
| 320 | |
| 321 | ======================================================================*/ |
| 322 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 323 | static void ibmtr_release(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | { |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 325 | ibmtr_dev_t *info = link->priv; |
| 326 | struct net_device *dev = info->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 328 | DEBUG(0, "ibmtr_release(0x%p)\n", link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | |
Dominik Brodowski | 5f2a71f | 2006-01-15 09:32:39 +0100 | [diff] [blame] | 330 | if (link->win) { |
| 331 | struct tok_info *ti = netdev_priv(dev); |
| 332 | iounmap(ti->mmio); |
| 333 | pcmcia_release_window(info->sram_win_handle); |
| 334 | } |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 335 | pcmcia_disable_device(link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 336 | } |
| 337 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 338 | static int ibmtr_suspend(struct pcmcia_device *link) |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 339 | { |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 340 | ibmtr_dev_t *info = link->priv; |
| 341 | struct net_device *dev = info->dev; |
| 342 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 343 | if (link->open) |
Dominik Brodowski | 8661bb5 | 2006-03-02 00:02:33 +0100 | [diff] [blame] | 344 | netif_device_detach(dev); |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 345 | |
| 346 | return 0; |
| 347 | } |
| 348 | |
Al Viro | 8814b50 | 2008-11-22 17:35:44 +0000 | [diff] [blame] | 349 | static int __devinit ibmtr_resume(struct pcmcia_device *link) |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 350 | { |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 351 | ibmtr_dev_t *info = link->priv; |
| 352 | struct net_device *dev = info->dev; |
| 353 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 354 | if (link->open) { |
Dominik Brodowski | 8661bb5 | 2006-03-02 00:02:33 +0100 | [diff] [blame] | 355 | ibmtr_probe(dev); /* really? */ |
| 356 | netif_device_attach(dev); |
| 357 | } |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 358 | |
| 359 | return 0; |
| 360 | } |
| 361 | |
| 362 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | /*====================================================================*/ |
| 364 | |
| 365 | static void ibmtr_hw_setup(struct net_device *dev, u_int mmiobase) |
| 366 | { |
| 367 | int i; |
| 368 | |
| 369 | /* Bizarre IBM behavior, there are 16 bits of information we |
| 370 | need to set, but the card only allows us to send 4 bits at a |
| 371 | time. For each byte sent to base_addr, bits 7-4 tell the |
| 372 | card which part of the 16 bits we are setting, bits 3-0 contain |
| 373 | the actual information */ |
| 374 | |
| 375 | /* First nibble provides 4 bits of mmio */ |
| 376 | i = (mmiobase >> 16) & 0x0F; |
| 377 | outb(i, dev->base_addr); |
| 378 | |
| 379 | /* Second nibble provides 3 bits of mmio */ |
| 380 | i = 0x10 | ((mmiobase >> 12) & 0x0E); |
| 381 | outb(i, dev->base_addr); |
| 382 | |
| 383 | /* Third nibble, hard-coded values */ |
| 384 | i = 0x26; |
| 385 | outb(i, dev->base_addr); |
| 386 | |
| 387 | /* Fourth nibble sets shared ram page size */ |
| 388 | |
| 389 | /* 8 = 00, 16 = 01, 32 = 10, 64 = 11 */ |
| 390 | i = (sramsize >> 4) & 0x07; |
| 391 | i = ((i == 4) ? 3 : i) << 2; |
| 392 | i |= 0x30; |
| 393 | |
| 394 | if (ringspeed == 16) |
| 395 | i |= 2; |
| 396 | if (dev->base_addr == 0xA24) |
| 397 | i |= 1; |
| 398 | outb(i, dev->base_addr); |
| 399 | |
| 400 | /* 0x40 will release the card for use */ |
| 401 | outb(0x40, dev->base_addr); |
| 402 | |
| 403 | return; |
| 404 | } |
| 405 | |
Dominik Brodowski | 469bf2b9 | 2005-06-27 16:28:22 -0700 | [diff] [blame] | 406 | static struct pcmcia_device_id ibmtr_ids[] = { |
| 407 | PCMCIA_DEVICE_PROD_ID12("3Com", "TokenLink Velocity PC Card", 0x41240e5b, 0x82c3734e), |
| 408 | PCMCIA_DEVICE_PROD_ID12("IBM", "TOKEN RING", 0xb569a6e5, 0xbf8eed47), |
| 409 | PCMCIA_DEVICE_NULL, |
| 410 | }; |
| 411 | MODULE_DEVICE_TABLE(pcmcia, ibmtr_ids); |
| 412 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | static struct pcmcia_driver ibmtr_cs_driver = { |
| 414 | .owner = THIS_MODULE, |
| 415 | .drv = { |
| 416 | .name = "ibmtr_cs", |
| 417 | }, |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 418 | .probe = ibmtr_attach, |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 419 | .remove = ibmtr_detach, |
Dominik Brodowski | 469bf2b9 | 2005-06-27 16:28:22 -0700 | [diff] [blame] | 420 | .id_table = ibmtr_ids, |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 421 | .suspend = ibmtr_suspend, |
| 422 | .resume = ibmtr_resume, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | }; |
| 424 | |
| 425 | static int __init init_ibmtr_cs(void) |
| 426 | { |
| 427 | return pcmcia_register_driver(&ibmtr_cs_driver); |
| 428 | } |
| 429 | |
| 430 | static void __exit exit_ibmtr_cs(void) |
| 431 | { |
| 432 | pcmcia_unregister_driver(&ibmtr_cs_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | } |
| 434 | |
| 435 | module_init(init_ibmtr_cs); |
| 436 | module_exit(exit_ibmtr_cs); |