Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* $Id: avm_cs.c,v 1.4.6.3 2001/09/23 22:24:33 kai Exp $ |
| 2 | * |
| 3 | * A PCMCIA client driver for AVM B1/M1/M2 |
| 4 | * |
| 5 | * Copyright 1999 by Carsten Paeth <calle@calle.de> |
| 6 | * |
| 7 | * This software may be used and distributed according to the terms |
| 8 | * of the GNU General Public License, incorporated herein by reference. |
| 9 | * |
| 10 | */ |
| 11 | |
| 12 | #include <linux/module.h> |
| 13 | #include <linux/kernel.h> |
| 14 | #include <linux/init.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | #include <linux/ptrace.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | #include <linux/string.h> |
| 17 | #include <linux/tty.h> |
| 18 | #include <linux/serial.h> |
| 19 | #include <linux/major.h> |
| 20 | #include <asm/io.h> |
| 21 | #include <asm/system.h> |
| 22 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | #include <pcmcia/cs.h> |
| 24 | #include <pcmcia/cistpl.h> |
| 25 | #include <pcmcia/ciscode.h> |
| 26 | #include <pcmcia/ds.h> |
| 27 | #include <pcmcia/cisreg.h> |
| 28 | |
| 29 | #include <linux/skbuff.h> |
| 30 | #include <linux/capi.h> |
| 31 | #include <linux/b1lli.h> |
| 32 | #include <linux/b1pcmcia.h> |
| 33 | |
| 34 | /*====================================================================*/ |
| 35 | |
| 36 | MODULE_DESCRIPTION("CAPI4Linux: PCMCIA client driver for AVM B1/M1/M2"); |
| 37 | MODULE_AUTHOR("Carsten Paeth"); |
| 38 | MODULE_LICENSE("GPL"); |
| 39 | |
| 40 | /*====================================================================*/ |
| 41 | |
| 42 | /* |
| 43 | The event() function is this driver's Card Services event handler. |
| 44 | It will be called by Card Services when an appropriate card status |
| 45 | event is received. The config() and release() entry points are |
| 46 | used to configure or release a socket, in response to card insertion |
| 47 | and ejection events. They are invoked from the skeleton event |
| 48 | handler. |
| 49 | */ |
| 50 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 51 | static int avmcs_config(struct pcmcia_device *link); |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 52 | static void avmcs_release(struct pcmcia_device *link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | |
| 54 | /* |
| 55 | The attach() and detach() entry points are used to create and destroy |
| 56 | "instances" of the driver, where each instance represents everything |
| 57 | needed to manage one actual PCMCIA card. |
| 58 | */ |
| 59 | |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 60 | static void avmcs_detach(struct pcmcia_device *p_dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | /*====================================================================== |
| 63 | |
| 64 | avmcs_attach() creates an "instance" of the driver, allocating |
| 65 | local data structures for one device. The device is registered |
| 66 | with Card Services. |
| 67 | |
| 68 | The dev_link structure is initialized, but we don't actually |
| 69 | configure the card at this point -- we wait until we receive a |
| 70 | card insertion event. |
| 71 | |
| 72 | ======================================================================*/ |
| 73 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 74 | static int avmcs_probe(struct pcmcia_device *p_dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | { |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 76 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | /* The io structure describes IO port mapping */ |
Dominik Brodowski | 90abdc3 | 2010-07-24 17:23:51 +0200 | [diff] [blame] | 78 | p_dev->resource[0]->end = 16; |
| 79 | p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | /* General socket configuration */ |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 82 | p_dev->conf.Attributes = CONF_ENABLE_IRQ; |
Dominik Brodowski | 7feabb6 | 2010-07-29 18:35:47 +0200 | [diff] [blame^] | 83 | p_dev->config_index = 1; |
| 84 | p_dev->config_regs = PRESENT_OPTION; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 86 | return avmcs_config(p_dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | } /* avmcs_attach */ |
| 88 | |
| 89 | /*====================================================================== |
| 90 | |
| 91 | This deletes a driver "instance". The device is de-registered |
| 92 | with Card Services. If it has been released, all local data |
| 93 | structures are freed. Otherwise, the structures will be freed |
| 94 | when the device is released. |
| 95 | |
| 96 | ======================================================================*/ |
| 97 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 98 | static void avmcs_detach(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | { |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 100 | avmcs_release(link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | } /* avmcs_detach */ |
| 102 | |
| 103 | /*====================================================================== |
| 104 | |
| 105 | avmcs_config() is scheduled to run after a CARD_INSERTION event |
| 106 | is received, to configure the PCMCIA socket, and to make the |
| 107 | ethernet device available to the system. |
| 108 | |
| 109 | ======================================================================*/ |
| 110 | |
Dominik Brodowski | 5fcd4da | 2008-07-29 08:38:55 +0200 | [diff] [blame] | 111 | static int avmcs_configcheck(struct pcmcia_device *p_dev, |
| 112 | cistpl_cftable_entry_t *cf, |
Dominik Brodowski | 8e2fc39 | 2008-08-02 15:30:31 +0200 | [diff] [blame] | 113 | cistpl_cftable_entry_t *dflt, |
Dominik Brodowski | ad913c1 | 2008-08-02 16:12:00 +0200 | [diff] [blame] | 114 | unsigned int vcc, |
Dominik Brodowski | 5fcd4da | 2008-07-29 08:38:55 +0200 | [diff] [blame] | 115 | void *priv_data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | { |
Dominik Brodowski | 5fcd4da | 2008-07-29 08:38:55 +0200 | [diff] [blame] | 117 | if (cf->io.nwin <= 0) |
| 118 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | |
Dominik Brodowski | 90abdc3 | 2010-07-24 17:23:51 +0200 | [diff] [blame] | 120 | p_dev->resource[0]->start = cf->io.win[0].base; |
| 121 | p_dev->resource[0]->end = cf->io.win[0].len; |
| 122 | return pcmcia_request_io(p_dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | } |
| 124 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 125 | static int avmcs_config(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | { |
Dominik Brodowski | eb14120 | 2010-03-07 12:21:16 +0100 | [diff] [blame] | 127 | int i = -1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | char devname[128]; |
| 129 | int cardtype; |
| 130 | int (*addcard)(unsigned int port, unsigned irq); |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 131 | |
Dominik Brodowski | 5fcd4da | 2008-07-29 08:38:55 +0200 | [diff] [blame] | 132 | devname[0] = 0; |
| 133 | if (link->prod_id[1]) |
| 134 | strlcpy(devname, link->prod_id[1], sizeof(devname)); |
| 135 | |
| 136 | /* |
| 137 | * find IO port |
| 138 | */ |
| 139 | if (pcmcia_loop_config(link, avmcs_configcheck, NULL)) |
| 140 | return -ENODEV; |
| 141 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | do { |
Dominik Brodowski | eb14120 | 2010-03-07 12:21:16 +0100 | [diff] [blame] | 143 | if (!link->irq) { |
Dominik Brodowski | 50db3fd | 2006-01-15 10:05:19 +0100 | [diff] [blame] | 144 | /* undo */ |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 145 | pcmcia_disable_device(link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | break; |
| 147 | } |
Dominik Brodowski | 50db3fd | 2006-01-15 10:05:19 +0100 | [diff] [blame] | 148 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | /* |
| 150 | * configure the PCMCIA socket |
| 151 | */ |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 152 | i = pcmcia_request_configuration(link, &link->conf); |
Dominik Brodowski | 4c89e88 | 2008-08-03 10:07:45 +0200 | [diff] [blame] | 153 | if (i != 0) { |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 154 | pcmcia_disable_device(link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | break; |
| 156 | } |
| 157 | |
| 158 | } while (0); |
| 159 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | if (devname[0]) { |
| 161 | char *s = strrchr(devname, ' '); |
| 162 | if (!s) |
| 163 | s = devname; |
| 164 | else s++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | if (strcmp("M1", s) == 0) { |
| 166 | cardtype = AVM_CARDTYPE_M1; |
| 167 | } else if (strcmp("M2", s) == 0) { |
| 168 | cardtype = AVM_CARDTYPE_M2; |
| 169 | } else { |
| 170 | cardtype = AVM_CARDTYPE_B1; |
| 171 | } |
Dominik Brodowski | ded6a1a | 2010-03-20 19:35:12 +0100 | [diff] [blame] | 172 | } else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | cardtype = AVM_CARDTYPE_B1; |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 174 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | /* If any step failed, release any partially configured state */ |
| 176 | if (i != 0) { |
| 177 | avmcs_release(link); |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 178 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 179 | } |
| 180 | |
| 181 | |
| 182 | switch (cardtype) { |
| 183 | case AVM_CARDTYPE_M1: addcard = b1pcmcia_addcard_m1; break; |
| 184 | case AVM_CARDTYPE_M2: addcard = b1pcmcia_addcard_m2; break; |
| 185 | default: |
| 186 | case AVM_CARDTYPE_B1: addcard = b1pcmcia_addcard_b1; break; |
| 187 | } |
Dominik Brodowski | 9a017a9 | 2010-07-24 15:58:54 +0200 | [diff] [blame] | 188 | if ((i = (*addcard)(link->resource[0]->start, link->irq)) < 0) { |
| 189 | dev_err(&link->dev, |
| 190 | "avm_cs: failed to add AVM-Controller at i/o %#x, irq %d\n", |
| 191 | (unsigned int) link->resource[0]->start, link->irq); |
Dominik Brodowski | ded6a1a | 2010-03-20 19:35:12 +0100 | [diff] [blame] | 192 | avmcs_release(link); |
| 193 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | } |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 195 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | |
| 197 | } /* avmcs_config */ |
| 198 | |
| 199 | /*====================================================================== |
| 200 | |
| 201 | After a card is removed, avmcs_release() will unregister the net |
| 202 | device, and release the PCMCIA configuration. If the device is |
| 203 | still open, this will be postponed until it is closed. |
| 204 | |
| 205 | ======================================================================*/ |
| 206 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 207 | static void avmcs_release(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | { |
Dominik Brodowski | 9a017a9 | 2010-07-24 15:58:54 +0200 | [diff] [blame] | 209 | b1pcmcia_delcard(link->resource[0]->start, link->irq); |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 210 | pcmcia_disable_device(link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | } /* avmcs_release */ |
| 212 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 213 | |
Dominik Brodowski | a13bcf0 | 2005-06-27 16:28:35 -0700 | [diff] [blame] | 214 | static struct pcmcia_device_id avmcs_ids[] = { |
| 215 | PCMCIA_DEVICE_PROD_ID12("AVM", "ISDN-Controller B1", 0x95d42008, 0x845dc335), |
| 216 | PCMCIA_DEVICE_PROD_ID12("AVM", "Mobile ISDN-Controller M1", 0x95d42008, 0x81e10430), |
| 217 | PCMCIA_DEVICE_PROD_ID12("AVM", "Mobile ISDN-Controller M2", 0x95d42008, 0x18e8558a), |
| 218 | PCMCIA_DEVICE_NULL |
| 219 | }; |
| 220 | MODULE_DEVICE_TABLE(pcmcia, avmcs_ids); |
| 221 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | static struct pcmcia_driver avmcs_driver = { |
| 223 | .owner = THIS_MODULE, |
| 224 | .drv = { |
| 225 | .name = "avm_cs", |
| 226 | }, |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 227 | .probe = avmcs_probe, |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 228 | .remove = avmcs_detach, |
Dominik Brodowski | a13bcf0 | 2005-06-27 16:28:35 -0700 | [diff] [blame] | 229 | .id_table = avmcs_ids, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | }; |
| 231 | |
| 232 | static int __init avmcs_init(void) |
| 233 | { |
| 234 | return pcmcia_register_driver(&avmcs_driver); |
| 235 | } |
| 236 | |
| 237 | static void __exit avmcs_exit(void) |
| 238 | { |
| 239 | pcmcia_unregister_driver(&avmcs_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | } |
| 241 | |
| 242 | module_init(avmcs_init); |
| 243 | module_exit(avmcs_exit); |