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1da177e4 LT |
1 | /* $Id: teles_cs.c,v 1.1.2.2 2004/01/25 15:07:06 keil Exp $ */ |
2 | /*====================================================================== | |
3 | ||
4 | A teles S0 PCMCIA client driver | |
5 | ||
6 | Based on skeleton by David Hinds, dhinds@allegro.stanford.edu | |
7 | Written by Christof Petig, christof.petig@wtal.de | |
8 | ||
9 | Also inspired by ELSA PCMCIA driver | |
10 | by Klaus Lichtenwalder <Lichtenwalder@ACM.org> | |
11 | ||
25985edc | 12 | Extensions to new hisax_pcmcia by Karsten Keil |
1da177e4 LT |
13 | |
14 | minor changes to be compatible with kernel 2.4.x | |
15 | by Jan.Schubert@GMX.li | |
16 | ||
17 | ======================================================================*/ | |
18 | ||
19 | #include <linux/kernel.h> | |
20 | #include <linux/module.h> | |
21 | #include <linux/init.h> | |
1da177e4 LT |
22 | #include <linux/ptrace.h> |
23 | #include <linux/slab.h> | |
24 | #include <linux/string.h> | |
25 | #include <linux/timer.h> | |
26 | #include <linux/ioport.h> | |
27 | #include <asm/io.h> | |
28 | #include <asm/system.h> | |
29 | ||
1da177e4 LT |
30 | #include <pcmcia/cistpl.h> |
31 | #include <pcmcia/cisreg.h> | |
32 | #include <pcmcia/ds.h> | |
33 | #include "hisax_cfg.h" | |
34 | ||
35 | MODULE_DESCRIPTION("ISDN4Linux: PCMCIA client driver for Teles PCMCIA cards"); | |
36 | MODULE_AUTHOR("Christof Petig, christof.petig@wtal.de, Karsten Keil, kkeil@suse.de"); | |
37 | MODULE_LICENSE("GPL"); | |
38 | ||
1da177e4 LT |
39 | |
40 | /*====================================================================*/ | |
41 | ||
42 | /* Parameters that can be set with 'insmod' */ | |
43 | ||
44 | static int protocol = 2; /* EURO-ISDN Default */ | |
45 | module_param(protocol, int, 0); | |
46 | ||
158e33d1 | 47 | static int teles_cs_config(struct pcmcia_device *link) __devinit ; |
fba395ee | 48 | static void teles_cs_release(struct pcmcia_device *link); |
158e33d1 | 49 | static void teles_detach(struct pcmcia_device *p_dev) __devexit ; |
1da177e4 | 50 | |
1da177e4 | 51 | typedef struct local_info_t { |
fd238232 | 52 | struct pcmcia_device *p_dev; |
1da177e4 LT |
53 | int busy; |
54 | int cardnr; | |
55 | } local_info_t; | |
56 | ||
158e33d1 | 57 | static int __devinit teles_probe(struct pcmcia_device *link) |
1da177e4 | 58 | { |
1da177e4 | 59 | local_info_t *local; |
1da177e4 | 60 | |
e773cfe1 | 61 | dev_dbg(&link->dev, "teles_attach()\n"); |
1da177e4 LT |
62 | |
63 | /* Allocate space for private device-specific data */ | |
41f96935 | 64 | local = kzalloc(sizeof(local_info_t), GFP_KERNEL); |
f8cfa618 | 65 | if (!local) return -ENOMEM; |
1da177e4 | 66 | local->cardnr = -1; |
fd238232 | 67 | |
fba395ee | 68 | local->p_dev = link; |
fd238232 | 69 | link->priv = local; |
1da177e4 | 70 | |
00990e7c | 71 | link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO; |
1da177e4 | 72 | |
15b99ac1 | 73 | return teles_cs_config(link); |
1da177e4 LT |
74 | } /* teles_attach */ |
75 | ||
158e33d1 | 76 | static void __devexit teles_detach(struct pcmcia_device *link) |
1da177e4 | 77 | { |
e2d40963 | 78 | local_info_t *info = link->priv; |
1da177e4 | 79 | |
e773cfe1 | 80 | dev_dbg(&link->dev, "teles_detach(0x%p)\n", link); |
1da177e4 | 81 | |
e2d40963 DB |
82 | info->busy = 1; |
83 | teles_cs_release(link); | |
1da177e4 | 84 | |
e2d40963 | 85 | kfree(info); |
1da177e4 LT |
86 | } /* teles_detach */ |
87 | ||
00990e7c | 88 | static int teles_cs_configcheck(struct pcmcia_device *p_dev, void *priv_data) |
1da177e4 | 89 | { |
5fcd4da0 DB |
90 | int j; |
91 | ||
90abdc3b | 92 | p_dev->io_lines = 5; |
00990e7c DB |
93 | p_dev->resource[0]->end = 96; |
94 | p_dev->resource[0]->flags &= IO_DATA_PATH_WIDTH; | |
95 | p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; | |
90abdc3b | 96 | |
00990e7c | 97 | if ((p_dev->resource[0]->end) && p_dev->resource[0]->start) { |
5fcd4da0 | 98 | printk(KERN_INFO "(teles_cs: looks like the 96 model)\n"); |
90abdc3b | 99 | if (!pcmcia_request_io(p_dev)) |
5fcd4da0 DB |
100 | return 0; |
101 | } else { | |
102 | printk(KERN_INFO "(teles_cs: looks like the 97 model)\n"); | |
5fcd4da0 | 103 | for (j = 0x2f0; j > 0x100; j -= 0x10) { |
90abdc3b DB |
104 | p_dev->resource[0]->start = j; |
105 | if (!pcmcia_request_io(p_dev)) | |
5fcd4da0 DB |
106 | return 0; |
107 | } | |
108 | } | |
109 | return -ENODEV; | |
1da177e4 LT |
110 | } |
111 | ||
158e33d1 | 112 | static int __devinit teles_cs_config(struct pcmcia_device *link) |
1da177e4 | 113 | { |
1da177e4 | 114 | local_info_t *dev; |
e773cfe1 | 115 | int i; |
1da177e4 LT |
116 | IsdnCard_t icard; |
117 | ||
e773cfe1 | 118 | dev_dbg(&link->dev, "teles_config(0x%p)\n", link); |
1da177e4 LT |
119 | dev = link->priv; |
120 | ||
5fcd4da0 | 121 | i = pcmcia_loop_config(link, teles_cs_configcheck, NULL); |
e773cfe1 | 122 | if (i != 0) |
1da177e4 | 123 | goto cs_failed; |
1da177e4 | 124 | |
eb14120f | 125 | if (!link->irq) |
1da177e4 | 126 | goto cs_failed; |
1da177e4 | 127 | |
1ac71e5a | 128 | i = pcmcia_enable_device(link); |
e773cfe1 | 129 | if (i != 0) |
1da177e4 | 130 | goto cs_failed; |
1da177e4 | 131 | |
eb14120f | 132 | icard.para[0] = link->irq; |
9a017a91 | 133 | icard.para[1] = link->resource[0]->start; |
1da177e4 LT |
134 | icard.protocol = protocol; |
135 | icard.typ = ISDN_CTYPE_TELESPCMCIA; | |
136 | ||
137 | i = hisax_init_pcmcia(link, &(((local_info_t*)link->priv)->busy), &icard); | |
138 | if (i < 0) { | |
139 | printk(KERN_ERR "teles_cs: failed to initialize Teles PCMCIA %d at i/o %#x\n", | |
9a017a91 | 140 | i, (unsigned int) link->resource[0]->start); |
1da177e4 | 141 | teles_cs_release(link); |
15b99ac1 DB |
142 | return -ENODEV; |
143 | } | |
144 | ||
145 | ((local_info_t*)link->priv)->cardnr = i; | |
146 | return 0; | |
1da177e4 | 147 | |
1da177e4 | 148 | cs_failed: |
1da177e4 | 149 | teles_cs_release(link); |
15b99ac1 | 150 | return -ENODEV; |
1da177e4 LT |
151 | } /* teles_cs_config */ |
152 | ||
fba395ee | 153 | static void teles_cs_release(struct pcmcia_device *link) |
1da177e4 LT |
154 | { |
155 | local_info_t *local = link->priv; | |
156 | ||
e773cfe1 | 157 | dev_dbg(&link->dev, "teles_cs_release(0x%p)\n", link); |
1da177e4 LT |
158 | |
159 | if (local) { | |
160 | if (local->cardnr >= 0) { | |
161 | /* no unregister function with hisax */ | |
162 | HiSax_closecard(local->cardnr); | |
163 | } | |
164 | } | |
5f2a71fc | 165 | |
fba395ee | 166 | pcmcia_disable_device(link); |
1da177e4 LT |
167 | } /* teles_cs_release */ |
168 | ||
fba395ee | 169 | static int teles_suspend(struct pcmcia_device *link) |
98e4c28b | 170 | { |
98e4c28b DB |
171 | local_info_t *dev = link->priv; |
172 | ||
98e4c28b | 173 | dev->busy = 1; |
98e4c28b DB |
174 | |
175 | return 0; | |
176 | } | |
177 | ||
fba395ee | 178 | static int teles_resume(struct pcmcia_device *link) |
98e4c28b | 179 | { |
98e4c28b DB |
180 | local_info_t *dev = link->priv; |
181 | ||
98e4c28b DB |
182 | dev->busy = 0; |
183 | ||
184 | return 0; | |
185 | } | |
186 | ||
1da177e4 | 187 | |
0a10d73d DB |
188 | static struct pcmcia_device_id teles_ids[] = { |
189 | PCMCIA_DEVICE_PROD_ID12("TELES", "S0/PC", 0x67b50eae, 0xe9e70119), | |
190 | PCMCIA_DEVICE_NULL, | |
191 | }; | |
192 | MODULE_DEVICE_TABLE(pcmcia, teles_ids); | |
193 | ||
1da177e4 LT |
194 | static struct pcmcia_driver teles_cs_driver = { |
195 | .owner = THIS_MODULE, | |
2e9b981a | 196 | .name = "teles_cs", |
15b99ac1 | 197 | .probe = teles_probe, |
158e33d1 | 198 | .remove = __devexit_p(teles_detach), |
0a10d73d | 199 | .id_table = teles_ids, |
98e4c28b DB |
200 | .suspend = teles_suspend, |
201 | .resume = teles_resume, | |
1da177e4 LT |
202 | }; |
203 | ||
204 | static int __init init_teles_cs(void) | |
205 | { | |
206 | return pcmcia_register_driver(&teles_cs_driver); | |
207 | } | |
208 | ||
209 | static void __exit exit_teles_cs(void) | |
210 | { | |
211 | pcmcia_unregister_driver(&teles_cs_driver); | |
1da177e4 LT |
212 | } |
213 | ||
214 | module_init(init_teles_cs); | |
215 | module_exit(exit_teles_cs); |