Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /*====================================================================== |
| 2 | |
| 3 | Aironet driver for 4500 and 4800 series cards |
| 4 | |
| 5 | This code is released under both the GPL version 2 and BSD licenses. |
| 6 | Either license may be used. The respective licenses are found at |
| 7 | the end of this file. |
| 8 | |
| 9 | This code was developed by Benjamin Reed <breed@users.sourceforge.net> |
| 10 | including portions of which come from the Aironet PC4500 |
| 11 | Developer's Reference Manual and used with permission. Copyright |
| 12 | (C) 1999 Benjamin Reed. All Rights Reserved. Permission to use |
| 13 | code in the Developer's manual was granted for this driver by |
| 14 | Aironet. |
| 15 | |
| 16 | In addition this module was derived from dummy_cs. |
| 17 | The initial developer of dummy_cs is David A. Hinds |
| 18 | <dahinds@users.sourceforge.net>. Portions created by David A. Hinds |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 19 | are Copyright (C) 1999 David A. Hinds. All Rights Reserved. |
| 20 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | ======================================================================*/ |
| 22 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | #ifdef __IN_PCMCIA_PACKAGE__ |
| 24 | #include <pcmcia/k_compat.h> |
| 25 | #endif |
| 26 | #include <linux/init.h> |
| 27 | #include <linux/kernel.h> |
| 28 | #include <linux/module.h> |
| 29 | #include <linux/ptrace.h> |
| 30 | #include <linux/slab.h> |
| 31 | #include <linux/string.h> |
| 32 | #include <linux/timer.h> |
| 33 | #include <linux/netdevice.h> |
| 34 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | #include <pcmcia/cs_types.h> |
| 36 | #include <pcmcia/cs.h> |
| 37 | #include <pcmcia/cistpl.h> |
| 38 | #include <pcmcia/cisreg.h> |
| 39 | #include <pcmcia/ds.h> |
| 40 | |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 41 | #include <linux/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | #include <asm/system.h> |
| 43 | |
Adrian Bunk | d380876 | 2005-11-05 17:42:27 +0100 | [diff] [blame] | 44 | #include "airo.h" |
| 45 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | |
| 47 | /*====================================================================*/ |
| 48 | |
| 49 | MODULE_AUTHOR("Benjamin Reed"); |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 50 | MODULE_DESCRIPTION("Support for Cisco/Aironet 802.11 wireless ethernet " |
| 51 | "cards. This is the module that links the PCMCIA card " |
| 52 | "with the airo module."); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | MODULE_LICENSE("Dual BSD/GPL"); |
| 54 | MODULE_SUPPORTED_DEVICE("Aironet 4500, 4800 and Cisco 340 PCMCIA cards"); |
| 55 | |
| 56 | /*====================================================================*/ |
| 57 | |
| 58 | /* |
| 59 | The event() function is this driver's Card Services event handler. |
| 60 | It will be called by Card Services when an appropriate card status |
| 61 | event is received. The config() and release() entry points are |
| 62 | used to configure or release a socket, in response to card |
| 63 | insertion and ejection events. They are invoked from the airo_cs |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 64 | event handler. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | */ |
| 66 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 67 | static int airo_config(struct pcmcia_device *link); |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 68 | static void airo_release(struct pcmcia_device *link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | |
| 70 | /* |
| 71 | The attach() and detach() entry points are used to create and destroy |
| 72 | "instances" of the driver, where each instance represents everything |
| 73 | needed to manage one actual PCMCIA card. |
| 74 | */ |
| 75 | |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 76 | static void airo_detach(struct pcmcia_device *p_dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | |
| 78 | /* |
| 79 | You'll also need to prototype all the functions that will actually |
| 80 | be used to talk to your device. See 'pcmem_cs' for a good example |
| 81 | of a fully self-sufficient driver; the other drivers rely more or |
| 82 | less on other parts of the kernel. |
| 83 | */ |
| 84 | |
| 85 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | A linked list of "instances" of the aironet device. Each actual |
| 87 | PCMCIA card corresponds to one device instance, and is described |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 88 | by one struct pcmcia_device structure (defined in ds.h). |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 89 | |
| 90 | You may not want to use a linked list for this -- for example, the |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 91 | memory card driver uses an array of struct pcmcia_device pointers, |
| 92 | where minor device numbers are used to derive the corresponding |
| 93 | array index. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | */ |
| 95 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | A driver needs to provide a dev_node_t structure for each device |
| 98 | on a card. In some cases, there is only one device per card (for |
| 99 | example, ethernet cards, modems). In other cases, there may be |
| 100 | many actual or logical devices (SCSI adapters, memory cards with |
| 101 | multiple partitions). The dev_node_t structures need to be kept |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 102 | in a linked list starting at the 'dev' field of a struct pcmcia_device |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | structure. We allocate them in the card's private data structure, |
| 104 | because they generally shouldn't be allocated dynamically. |
| 105 | |
| 106 | In this case, we also provide a flag to indicate if a device is |
| 107 | "stopped" due to a power management event, or card ejection. The |
| 108 | device IO routines can use a flag like this to throttle IO to a |
| 109 | card that is not ready to accept it. |
| 110 | */ |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 111 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | typedef struct local_info_t { |
| 113 | dev_node_t node; |
| 114 | struct net_device *eth_dev; |
| 115 | } local_info_t; |
| 116 | |
| 117 | /*====================================================================== |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 118 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | airo_attach() creates an "instance" of the driver, allocating |
| 120 | local data structures for one device. The device is registered |
| 121 | with Card Services. |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 122 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | The dev_link structure is initialized, but we don't actually |
| 124 | configure the card at this point -- we wait until we receive a |
| 125 | card insertion event. |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 126 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | ======================================================================*/ |
| 128 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 129 | static int airo_probe(struct pcmcia_device *p_dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | local_info_t *local; |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 132 | |
Dominik Brodowski | 2caff147 | 2009-10-24 15:53:36 +0200 | [diff] [blame] | 133 | dev_dbg(&p_dev->dev, "airo_attach()\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | /* Interrupt setup */ |
Alan Cox | 47cbb11 | 2008-09-23 13:53:09 +0100 | [diff] [blame] | 136 | p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 137 | p_dev->irq.Handler = NULL; |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 138 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | /* |
| 140 | General socket configuration defaults can go here. In this |
| 141 | client, we assume very little, and rely on the CIS for almost |
| 142 | everything. In most clients, many details (i.e., number, sizes, |
| 143 | and attributes of IO windows) are fixed by the nature of the |
| 144 | device, and can be hard-wired here. |
| 145 | */ |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 146 | p_dev->conf.Attributes = 0; |
| 147 | p_dev->conf.IntType = INT_MEMORY_AND_IO; |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 148 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | /* Allocate space for private device-specific data */ |
Panagiotis Issaris | b69a3aa | 2005-11-08 00:03:15 +0100 | [diff] [blame] | 150 | local = kzalloc(sizeof(local_info_t), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | if (!local) { |
| 152 | printk(KERN_ERR "airo_cs: no memory for new device\n"); |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 153 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | } |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 155 | p_dev->priv = local; |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 156 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 157 | return airo_config(p_dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | } /* airo_attach */ |
| 159 | |
| 160 | /*====================================================================== |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 161 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | This deletes a driver "instance". The device is de-registered |
| 163 | with Card Services. If it has been released, all local data |
| 164 | structures are freed. Otherwise, the structures will be freed |
| 165 | when the device is released. |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 166 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | ======================================================================*/ |
| 168 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 169 | static void airo_detach(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | { |
Dominik Brodowski | 2caff147 | 2009-10-24 15:53:36 +0200 | [diff] [blame] | 171 | dev_dbg(&link->dev, "airo_detach\n"); |
Dominik Brodowski | b463581 | 2005-11-14 21:25:35 +0100 | [diff] [blame] | 172 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 173 | airo_release(link); |
Dominik Brodowski | b463581 | 2005-11-14 21:25:35 +0100 | [diff] [blame] | 174 | |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 175 | if (((local_info_t *)link->priv)->eth_dev) { |
| 176 | stop_airo_card(((local_info_t *)link->priv)->eth_dev, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | } |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 178 | ((local_info_t *)link->priv)->eth_dev = NULL; |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 179 | |
Jesper Juhl | b4558ea | 2005-10-28 16:53:13 -0400 | [diff] [blame] | 180 | kfree(link->priv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | } /* airo_detach */ |
| 182 | |
| 183 | /*====================================================================== |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 184 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | airo_config() is scheduled to run after a CARD_INSERTION event |
| 186 | is received, to configure the PCMCIA socket, and to make the |
| 187 | device available to the system. |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 188 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | ======================================================================*/ |
| 190 | |
Dominik Brodowski | b54bf94 | 2008-08-02 14:28:43 +0200 | [diff] [blame] | 191 | static int airo_cs_config_check(struct pcmcia_device *p_dev, |
| 192 | cistpl_cftable_entry_t *cfg, |
Dominik Brodowski | 8e2fc39 | 2008-08-02 15:30:31 +0200 | [diff] [blame] | 193 | cistpl_cftable_entry_t *dflt, |
Dominik Brodowski | ad913c1 | 2008-08-02 16:12:00 +0200 | [diff] [blame] | 194 | unsigned int vcc, |
Dominik Brodowski | b54bf94 | 2008-08-02 14:28:43 +0200 | [diff] [blame] | 195 | void *priv_data) |
| 196 | { |
Dominik Brodowski | 8e2fc39 | 2008-08-02 15:30:31 +0200 | [diff] [blame] | 197 | win_req_t *req = priv_data; |
Dominik Brodowski | b54bf94 | 2008-08-02 14:28:43 +0200 | [diff] [blame] | 198 | |
| 199 | if (cfg->index == 0) |
| 200 | return -ENODEV; |
| 201 | |
Dominik Brodowski | b54bf94 | 2008-08-02 14:28:43 +0200 | [diff] [blame] | 202 | /* Does this card need audio output? */ |
| 203 | if (cfg->flags & CISTPL_CFTABLE_AUDIO) { |
| 204 | p_dev->conf.Attributes |= CONF_ENABLE_SPKR; |
| 205 | p_dev->conf.Status = CCSR_AUDIO_ENA; |
| 206 | } |
| 207 | |
| 208 | /* Use power settings for Vcc and Vpp if present */ |
| 209 | /* Note that the CIS values need to be rescaled */ |
| 210 | if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM)) |
| 211 | p_dev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM]/10000; |
Dominik Brodowski | 8e2fc39 | 2008-08-02 15:30:31 +0200 | [diff] [blame] | 212 | else if (dflt->vpp1.present & (1<<CISTPL_POWER_VNOM)) |
| 213 | p_dev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM]/10000; |
Dominik Brodowski | b54bf94 | 2008-08-02 14:28:43 +0200 | [diff] [blame] | 214 | |
| 215 | /* Do we need to allocate an interrupt? */ |
Dominik Brodowski | 8e2fc39 | 2008-08-02 15:30:31 +0200 | [diff] [blame] | 216 | if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) |
Dominik Brodowski | b54bf94 | 2008-08-02 14:28:43 +0200 | [diff] [blame] | 217 | p_dev->conf.Attributes |= CONF_ENABLE_IRQ; |
| 218 | |
| 219 | /* IO window settings */ |
| 220 | p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; |
Dominik Brodowski | 8e2fc39 | 2008-08-02 15:30:31 +0200 | [diff] [blame] | 221 | if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) { |
| 222 | cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io; |
Dominik Brodowski | b54bf94 | 2008-08-02 14:28:43 +0200 | [diff] [blame] | 223 | p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; |
| 224 | if (!(io->flags & CISTPL_IO_8BIT)) |
| 225 | p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_16; |
| 226 | if (!(io->flags & CISTPL_IO_16BIT)) |
| 227 | p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; |
| 228 | p_dev->io.BasePort1 = io->win[0].base; |
| 229 | p_dev->io.NumPorts1 = io->win[0].len; |
| 230 | if (io->nwin > 1) { |
| 231 | p_dev->io.Attributes2 = p_dev->io.Attributes1; |
| 232 | p_dev->io.BasePort2 = io->win[1].base; |
| 233 | p_dev->io.NumPorts2 = io->win[1].len; |
| 234 | } |
| 235 | } |
| 236 | |
| 237 | /* This reserves IO space but doesn't actually enable it */ |
| 238 | if (pcmcia_request_io(p_dev, &p_dev->io) != 0) |
| 239 | return -ENODEV; |
| 240 | |
| 241 | /* |
| 242 | Now set up a common memory window, if needed. There is room |
| 243 | in the struct pcmcia_device structure for one memory window handle, |
| 244 | but if the base addresses need to be saved, or if multiple |
| 245 | windows are needed, the info should go in the private data |
| 246 | structure for this device. |
| 247 | |
| 248 | Note that the memory window base is a physical address, and |
| 249 | needs to be mapped to virtual space with ioremap() before it |
| 250 | is used. |
| 251 | */ |
Dominik Brodowski | 8e2fc39 | 2008-08-02 15:30:31 +0200 | [diff] [blame] | 252 | if ((cfg->mem.nwin > 0) || (dflt->mem.nwin > 0)) { |
| 253 | cistpl_mem_t *mem = (cfg->mem.nwin) ? &cfg->mem : &dflt->mem; |
Dominik Brodowski | b54bf94 | 2008-08-02 14:28:43 +0200 | [diff] [blame] | 254 | memreq_t map; |
Dominik Brodowski | 8e2fc39 | 2008-08-02 15:30:31 +0200 | [diff] [blame] | 255 | req->Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM; |
| 256 | req->Base = mem->win[0].host_addr; |
| 257 | req->Size = mem->win[0].len; |
| 258 | req->AccessSpeed = 0; |
Dominik Brodowski | 6838b03 | 2009-11-03 01:31:52 +0100 | [diff] [blame] | 259 | if (pcmcia_request_window(p_dev, req, &p_dev->win) != 0) |
Dominik Brodowski | b54bf94 | 2008-08-02 14:28:43 +0200 | [diff] [blame] | 260 | return -ENODEV; |
| 261 | map.Page = 0; |
| 262 | map.CardOffset = mem->win[0].card_addr; |
Magnus Damm | 868575d | 2006-12-13 19:46:43 +0900 | [diff] [blame] | 263 | if (pcmcia_map_mem_page(p_dev, p_dev->win, &map) != 0) |
Dominik Brodowski | b54bf94 | 2008-08-02 14:28:43 +0200 | [diff] [blame] | 264 | return -ENODEV; |
| 265 | } |
| 266 | /* If we got this far, we're cool! */ |
| 267 | return 0; |
| 268 | } |
| 269 | |
| 270 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 271 | static int airo_config(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 273 | local_info_t *dev; |
Dominik Brodowski | 8e2fc39 | 2008-08-02 15:30:31 +0200 | [diff] [blame] | 274 | win_req_t *req; |
Dominik Brodowski | 2caff147 | 2009-10-24 15:53:36 +0200 | [diff] [blame] | 275 | int ret; |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 276 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 277 | dev = link->priv; |
| 278 | |
Dominik Brodowski | 2caff147 | 2009-10-24 15:53:36 +0200 | [diff] [blame] | 279 | dev_dbg(&link->dev, "airo_config\n"); |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 280 | |
Dominik Brodowski | 8e2fc39 | 2008-08-02 15:30:31 +0200 | [diff] [blame] | 281 | req = kzalloc(sizeof(win_req_t), GFP_KERNEL); |
| 282 | if (!req) |
Dominik Brodowski | b54bf94 | 2008-08-02 14:28:43 +0200 | [diff] [blame] | 283 | return -ENOMEM; |
| 284 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | /* |
Dominik Brodowski | b54bf94 | 2008-08-02 14:28:43 +0200 | [diff] [blame] | 286 | * In this loop, we scan the CIS for configuration table |
| 287 | * entries, each of which describes a valid card |
| 288 | * configuration, including voltage, IO window, memory window, |
| 289 | * and interrupt settings. |
| 290 | * |
| 291 | * We make no assumptions about the card to be configured: we |
| 292 | * use just the information available in the CIS. In an ideal |
| 293 | * world, this would work for any PCMCIA card, but it requires |
| 294 | * a complete and accurate CIS. In practice, a driver usually |
| 295 | * "knows" most of these things without consulting the CIS, |
| 296 | * and most client drivers will only use the CIS to fill in |
| 297 | * implementation-defined details. |
| 298 | */ |
Dominik Brodowski | 2caff147 | 2009-10-24 15:53:36 +0200 | [diff] [blame] | 299 | ret = pcmcia_loop_config(link, airo_cs_config_check, req); |
| 300 | if (ret) |
Dominik Brodowski | b54bf94 | 2008-08-02 14:28:43 +0200 | [diff] [blame] | 301 | goto failed; |
| 302 | |
| 303 | /* |
| 304 | Allocate an interrupt line. Note that this does not assign a |
| 305 | handler to the interrupt, unless the 'Handler' member of the |
| 306 | irq structure is initialized. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | */ |
Dominik Brodowski | 2caff147 | 2009-10-24 15:53:36 +0200 | [diff] [blame] | 308 | if (link->conf.Attributes & CONF_ENABLE_IRQ) { |
| 309 | ret = pcmcia_request_irq(link, &link->irq); |
| 310 | if (ret) |
| 311 | goto failed; |
| 312 | } |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 313 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | /* |
| 315 | This actually configures the PCMCIA socket -- setting up |
| 316 | the I/O windows and the interrupt mapping, and putting the |
| 317 | card and host interface into "Memory and IO" mode. |
| 318 | */ |
Dominik Brodowski | 2caff147 | 2009-10-24 15:53:36 +0200 | [diff] [blame] | 319 | ret = pcmcia_request_configuration(link, &link->conf); |
| 320 | if (ret) |
| 321 | goto failed; |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 322 | ((local_info_t *)link->priv)->eth_dev = |
| 323 | init_airo_card(link->irq.AssignedIRQ, |
Dominik Brodowski | dd2e5a1 | 2009-11-03 10:27:34 +0100 | [diff] [blame] | 324 | link->io.BasePort1, 1, &link->dev); |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 325 | if (!((local_info_t *)link->priv)->eth_dev) |
Dominik Brodowski | 2caff147 | 2009-10-24 15:53:36 +0200 | [diff] [blame] | 326 | goto failed; |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 327 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | /* |
| 329 | At this point, the dev_node_t structure(s) need to be |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 330 | initialized and arranged in a linked list at link->dev_node. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | */ |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 332 | strcpy(dev->node.dev_name, ((local_info_t *)link->priv)->eth_dev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | dev->node.major = dev->node.minor = 0; |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 334 | link->dev_node = &dev->node; |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 335 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 336 | /* Finally, report what we've done */ |
Dominik Brodowski | 70294b4 | 2006-01-15 12:43:16 +0100 | [diff] [blame] | 337 | printk(KERN_INFO "%s: index 0x%02x: ", |
| 338 | dev->node.dev_name, link->conf.ConfigIndex); |
| 339 | if (link->conf.Vpp) |
| 340 | printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | if (link->conf.Attributes & CONF_ENABLE_IRQ) |
| 342 | printk(", irq %d", link->irq.AssignedIRQ); |
| 343 | if (link->io.NumPorts1) |
| 344 | printk(", io 0x%04x-0x%04x", link->io.BasePort1, |
| 345 | link->io.BasePort1+link->io.NumPorts1-1); |
| 346 | if (link->io.NumPorts2) |
| 347 | printk(" & 0x%04x-0x%04x", link->io.BasePort2, |
| 348 | link->io.BasePort2+link->io.NumPorts2-1); |
| 349 | if (link->win) |
Dominik Brodowski | 8e2fc39 | 2008-08-02 15:30:31 +0200 | [diff] [blame] | 350 | printk(", mem 0x%06lx-0x%06lx", req->Base, |
| 351 | req->Base+req->Size-1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | printk("\n"); |
Dominik Brodowski | 8e2fc39 | 2008-08-02 15:30:31 +0200 | [diff] [blame] | 353 | kfree(req); |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 354 | return 0; |
| 355 | |
Dominik Brodowski | b54bf94 | 2008-08-02 14:28:43 +0200 | [diff] [blame] | 356 | failed: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | airo_release(link); |
Dominik Brodowski | 8e2fc39 | 2008-08-02 15:30:31 +0200 | [diff] [blame] | 358 | kfree(req); |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 359 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | } /* airo_config */ |
| 361 | |
| 362 | /*====================================================================== |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 363 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 | After a card is removed, airo_release() will unregister the |
| 365 | device, and release the PCMCIA configuration. If the device is |
| 366 | still open, this will be postponed until it is closed. |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 367 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | ======================================================================*/ |
| 369 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 370 | static void airo_release(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | { |
Dominik Brodowski | 2caff147 | 2009-10-24 15:53:36 +0200 | [diff] [blame] | 372 | dev_dbg(&link->dev, "airo_release\n"); |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 373 | pcmcia_disable_device(link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | } |
| 375 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 376 | static int airo_suspend(struct pcmcia_device *link) |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 377 | { |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 378 | local_info_t *local = link->priv; |
| 379 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 380 | netif_device_detach(local->eth_dev); |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 381 | |
| 382 | return 0; |
| 383 | } |
| 384 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 385 | static int airo_resume(struct pcmcia_device *link) |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 386 | { |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 387 | local_info_t *local = link->priv; |
| 388 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 389 | if (link->open) { |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 390 | reset_airo_card(local->eth_dev); |
| 391 | netif_device_attach(local->eth_dev); |
| 392 | } |
| 393 | |
| 394 | return 0; |
| 395 | } |
| 396 | |
Dominik Brodowski | 7018d06 | 2005-06-27 16:28:20 -0700 | [diff] [blame] | 397 | static struct pcmcia_device_id airo_ids[] = { |
| 398 | PCMCIA_DEVICE_MANF_CARD(0x015f, 0x000a), |
| 399 | PCMCIA_DEVICE_MANF_CARD(0x015f, 0x0005), |
| 400 | PCMCIA_DEVICE_MANF_CARD(0x015f, 0x0007), |
| 401 | PCMCIA_DEVICE_MANF_CARD(0x0105, 0x0007), |
| 402 | PCMCIA_DEVICE_NULL, |
| 403 | }; |
| 404 | MODULE_DEVICE_TABLE(pcmcia, airo_ids); |
| 405 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | static struct pcmcia_driver airo_driver = { |
| 407 | .owner = THIS_MODULE, |
| 408 | .drv = { |
| 409 | .name = "airo_cs", |
| 410 | }, |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 411 | .probe = airo_probe, |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 412 | .remove = airo_detach, |
Dominik Brodowski | 7018d06 | 2005-06-27 16:28:20 -0700 | [diff] [blame] | 413 | .id_table = airo_ids, |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 414 | .suspend = airo_suspend, |
| 415 | .resume = airo_resume, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | }; |
| 417 | |
| 418 | static int airo_cs_init(void) |
| 419 | { |
| 420 | return pcmcia_register_driver(&airo_driver); |
| 421 | } |
| 422 | |
| 423 | static void airo_cs_cleanup(void) |
| 424 | { |
| 425 | pcmcia_unregister_driver(&airo_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 426 | } |
| 427 | |
| 428 | /* |
| 429 | This program is free software; you can redistribute it and/or |
| 430 | modify it under the terms of the GNU General Public License |
| 431 | as published by the Free Software Foundation; either version 2 |
| 432 | of the License, or (at your option) any later version. |
| 433 | |
| 434 | This program is distributed in the hope that it will be useful, |
| 435 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 436 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 437 | GNU General Public License for more details. |
| 438 | |
| 439 | In addition: |
| 440 | |
| 441 | Redistribution and use in source and binary forms, with or without |
| 442 | modification, are permitted provided that the following conditions |
| 443 | are met: |
| 444 | |
| 445 | 1. Redistributions of source code must retain the above copyright |
| 446 | notice, this list of conditions and the following disclaimer. |
| 447 | 2. Redistributions in binary form must reproduce the above copyright |
| 448 | notice, this list of conditions and the following disclaimer in the |
| 449 | documentation and/or other materials provided with the distribution. |
| 450 | 3. The name of the author may not be used to endorse or promote |
| 451 | products derived from this software without specific prior written |
| 452 | permission. |
| 453 | |
| 454 | THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 455 | IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 456 | WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 457 | ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, |
| 458 | INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 459 | (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| 460 | SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 461 | HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 462 | STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| 463 | IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
John Daiker | 05c9a4c | 2009-03-06 07:09:41 -0800 | [diff] [blame] | 464 | POSSIBILITY OF SUCH DAMAGE. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 465 | */ |
| 466 | |
| 467 | module_init(airo_cs_init); |
| 468 | module_exit(airo_cs_cleanup); |