Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * PCMCIA client driver for AVM A1 / Fritz!PCMCIA | |
3 | * | |
4 | * Author Carsten Paeth | |
5 | * Copyright 1998-2001 by Carsten Paeth <calle@calle.in-berlin.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 | ||
14 | ||
15 | #include <linux/kernel.h> | |
16 | #include <linux/init.h> | |
1da177e4 LT |
17 | #include <linux/ptrace.h> |
18 | #include <linux/slab.h> | |
19 | #include <linux/string.h> | |
20 | #include <asm/io.h> | |
21 | #include <asm/system.h> | |
22 | ||
1da177e4 LT |
23 | #include <pcmcia/cistpl.h> |
24 | #include <pcmcia/ds.h> | |
25 | #include "hisax_cfg.h" | |
26 | ||
27 | MODULE_DESCRIPTION("ISDN4Linux: PCMCIA client driver for AVM A1/Fritz!PCMCIA cards"); | |
28 | MODULE_AUTHOR("Carsten Paeth"); | |
29 | MODULE_LICENSE("GPL"); | |
30 | ||
1da177e4 LT |
31 | |
32 | /*====================================================================*/ | |
33 | ||
34 | /* Parameters that can be set with 'insmod' */ | |
35 | ||
36 | static int isdnprot = 2; | |
37 | ||
38 | module_param(isdnprot, int, 0); | |
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 | ||
a465870a | 51 | static int avma1cs_config(struct pcmcia_device *link) __devinit ; |
fba395ee | 52 | static void avma1cs_release(struct pcmcia_device *link); |
1da177e4 LT |
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 | ||
a465870a | 60 | static void avma1cs_detach(struct pcmcia_device *p_dev) __devexit ; |
1da177e4 | 61 | |
1da177e4 | 62 | |
1da177e4 LT |
63 | /*====================================================================== |
64 | ||
65 | avma1cs_attach() creates an "instance" of the driver, allocating | |
66 | local data structures for one device. The device is registered | |
67 | with Card Services. | |
68 | ||
69 | The dev_link structure is initialized, but we don't actually | |
70 | configure the card at this point -- we wait until we receive a | |
71 | card insertion event. | |
72 | ||
73 | ======================================================================*/ | |
74 | ||
a465870a | 75 | static int __devinit avma1cs_probe(struct pcmcia_device *p_dev) |
1da177e4 | 76 | { |
e773cfe1 | 77 | dev_dbg(&p_dev->dev, "avma1cs_attach()\n"); |
1da177e4 | 78 | |
1da177e4 | 79 | /* The io structure describes IO port mapping */ |
90abdc3b DB |
80 | p_dev->resource[0]->end = 16; |
81 | p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; | |
82 | p_dev->resource[1]->end = 16; | |
83 | p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_16; | |
1da177e4 | 84 | |
1da177e4 | 85 | /* General socket configuration */ |
1ac71e5a | 86 | p_dev->config_flags |= CONF_ENABLE_IRQ; |
7feabb64 DB |
87 | p_dev->config_index = 1; |
88 | p_dev->config_regs = PRESENT_OPTION; | |
f8cfa618 | 89 | |
15b99ac1 | 90 | return avma1cs_config(p_dev); |
1da177e4 LT |
91 | } /* avma1cs_attach */ |
92 | ||
93 | /*====================================================================== | |
94 | ||
95 | This deletes a driver "instance". The device is de-registered | |
96 | with Card Services. If it has been released, all local data | |
97 | structures are freed. Otherwise, the structures will be freed | |
98 | when the device is released. | |
99 | ||
100 | ======================================================================*/ | |
101 | ||
a465870a | 102 | static void __devexit avma1cs_detach(struct pcmcia_device *link) |
1da177e4 | 103 | { |
e773cfe1 | 104 | dev_dbg(&link->dev, "avma1cs_detach(0x%p)\n", link); |
e2d40963 DB |
105 | avma1cs_release(link); |
106 | kfree(link->priv); | |
1da177e4 LT |
107 | } /* avma1cs_detach */ |
108 | ||
109 | /*====================================================================== | |
110 | ||
111 | avma1cs_config() is scheduled to run after a CARD_INSERTION event | |
112 | is received, to configure the PCMCIA socket, and to make the | |
113 | ethernet device available to the system. | |
114 | ||
115 | ======================================================================*/ | |
116 | ||
5fcd4da0 | 117 | static int avma1cs_configcheck(struct pcmcia_device *p_dev, |
8e2fc39d DB |
118 | cistpl_cftable_entry_t *cf, |
119 | cistpl_cftable_entry_t *dflt, | |
ad913c11 | 120 | unsigned int vcc, |
8e2fc39d | 121 | void *priv_data) |
1da177e4 | 122 | { |
5fcd4da0 DB |
123 | if (cf->io.nwin <= 0) |
124 | return -ENODEV; | |
125 | ||
90abdc3b DB |
126 | p_dev->resource[0]->start = cf->io.win[0].base; |
127 | p_dev->resource[0]->end = cf->io.win[0].len; | |
128 | p_dev->io_lines = 5; | |
129 | return pcmcia_request_io(p_dev); | |
1da177e4 LT |
130 | } |
131 | ||
1da177e4 | 132 | |
a465870a | 133 | static int __devinit avma1cs_config(struct pcmcia_device *link) |
1da177e4 | 134 | { |
eb14120f | 135 | int i = -1; |
1da177e4 LT |
136 | char devname[128]; |
137 | IsdnCard_t icard; | |
138 | int busy = 0; | |
fba395ee | 139 | |
e773cfe1 | 140 | dev_dbg(&link->dev, "avma1cs_config(0x%p)\n", link); |
1da177e4 | 141 | |
5fcd4da0 DB |
142 | devname[0] = 0; |
143 | if (link->prod_id[1]) | |
144 | strlcpy(devname, link->prod_id[1], sizeof(devname)); | |
a9606fd3 | 145 | |
5fcd4da0 DB |
146 | if (pcmcia_loop_config(link, avma1cs_configcheck, NULL)) |
147 | return -ENODEV; | |
1da177e4 | 148 | |
5fcd4da0 | 149 | do { |
1da177e4 LT |
150 | /* |
151 | * allocate an interrupt line | |
152 | */ | |
eb14120f | 153 | if (!link->irq) { |
50db3fdb | 154 | /* undo */ |
fba395ee | 155 | pcmcia_disable_device(link); |
1da177e4 LT |
156 | break; |
157 | } | |
50db3fdb | 158 | |
1da177e4 LT |
159 | /* |
160 | * configure the PCMCIA socket | |
161 | */ | |
1ac71e5a | 162 | i = pcmcia_enable_device(link); |
4c89e88b | 163 | if (i != 0) { |
fba395ee | 164 | pcmcia_disable_device(link); |
1da177e4 LT |
165 | break; |
166 | } | |
167 | ||
168 | } while (0); | |
169 | ||
1da177e4 LT |
170 | /* If any step failed, release any partially configured state */ |
171 | if (i != 0) { | |
172 | avma1cs_release(link); | |
15b99ac1 | 173 | return -ENODEV; |
1da177e4 LT |
174 | } |
175 | ||
176 | printk(KERN_NOTICE "avma1_cs: checking at i/o %#x, irq %d\n", | |
9a017a91 | 177 | (unsigned int) link->resource[0]->start, link->irq); |
1da177e4 | 178 | |
eb14120f | 179 | icard.para[0] = link->irq; |
9a017a91 | 180 | icard.para[1] = link->resource[0]->start; |
1da177e4 LT |
181 | icard.protocol = isdnprot; |
182 | icard.typ = ISDN_CTYPE_A1_PCMCIA; | |
183 | ||
184 | i = hisax_init_pcmcia(link, &busy, &icard); | |
185 | if (i < 0) { | |
9a017a91 DB |
186 | printk(KERN_ERR "avma1_cs: failed to initialize AVM A1 " |
187 | "PCMCIA %d at i/o %#x\n", i, | |
188 | (unsigned int) link->resource[0]->start); | |
1da177e4 | 189 | avma1cs_release(link); |
15b99ac1 | 190 | return -ENODEV; |
1da177e4 | 191 | } |
b498ada6 | 192 | link->priv = (void *) (unsigned long) i; |
1da177e4 | 193 | |
15b99ac1 | 194 | return 0; |
1da177e4 LT |
195 | } /* avma1cs_config */ |
196 | ||
197 | /*====================================================================== | |
198 | ||
199 | After a card is removed, avma1cs_release() will unregister the net | |
200 | device, and release the PCMCIA configuration. If the device is | |
201 | still open, this will be postponed until it is closed. | |
202 | ||
203 | ======================================================================*/ | |
204 | ||
fba395ee | 205 | static void avma1cs_release(struct pcmcia_device *link) |
1da177e4 | 206 | { |
b498ada6 | 207 | unsigned long minor = (unsigned long) link->priv; |
1da177e4 | 208 | |
e773cfe1 | 209 | dev_dbg(&link->dev, "avma1cs_release(0x%p)\n", link); |
1da177e4 | 210 | |
5f2a71fc | 211 | /* now unregister function with hisax */ |
b498ada6 | 212 | HiSax_closecard(minor); |
1da177e4 | 213 | |
fba395ee | 214 | pcmcia_disable_device(link); |
1da177e4 LT |
215 | } /* avma1cs_release */ |
216 | ||
1da177e4 | 217 | |
c594c12c DB |
218 | static struct pcmcia_device_id avma1cs_ids[] = { |
219 | PCMCIA_DEVICE_PROD_ID12("AVM", "ISDN A", 0x95d42008, 0xadc9d4bb), | |
220 | PCMCIA_DEVICE_PROD_ID12("ISDN", "CARD", 0x8d9761c8, 0x01c5aa7b), | |
221 | PCMCIA_DEVICE_NULL | |
222 | }; | |
223 | MODULE_DEVICE_TABLE(pcmcia, avma1cs_ids); | |
224 | ||
1da177e4 LT |
225 | static struct pcmcia_driver avma1cs_driver = { |
226 | .owner = THIS_MODULE, | |
227 | .drv = { | |
228 | .name = "avma1_cs", | |
229 | }, | |
15b99ac1 | 230 | .probe = avma1cs_probe, |
a465870a | 231 | .remove = __devexit_p(avma1cs_detach), |
c594c12c | 232 | .id_table = avma1cs_ids, |
1da177e4 | 233 | }; |
8661bb5b | 234 | |
1da177e4 LT |
235 | /*====================================================================*/ |
236 | ||
237 | static int __init init_avma1_cs(void) | |
238 | { | |
239 | return(pcmcia_register_driver(&avma1cs_driver)); | |
240 | } | |
241 | ||
242 | static void __exit exit_avma1_cs(void) | |
243 | { | |
244 | pcmcia_unregister_driver(&avma1cs_driver); | |
1da177e4 LT |
245 | } |
246 | ||
247 | module_init(init_avma1_cs); | |
248 | module_exit(exit_avma1_cs); |