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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 | ||
475be4d8 | 4 | A teles S0 PCMCIA client driver |
1da177e4 | 5 | |
475be4d8 JP |
6 | Based on skeleton by David Hinds, dhinds@allegro.stanford.edu |
7 | Written by Christof Petig, christof.petig@wtal.de | |
1da177e4 | 8 | |
475be4d8 JP |
9 | Also inspired by ELSA PCMCIA driver |
10 | by Klaus Lichtenwalder <Lichtenwalder@ACM.org> | |
1da177e4 | 11 | |
475be4d8 JP |
12 | Extensions to new hisax_pcmcia by Karsten Keil |
13 | ||
14 | minor changes to be compatible with kernel 2.4.x | |
15 | by Jan.Schubert@GMX.li | |
16 | ||
17 | ======================================================================*/ | |
1da177e4 LT |
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> | |
1da177e4 | 28 | |
1da177e4 LT |
29 | #include <pcmcia/cistpl.h> |
30 | #include <pcmcia/cisreg.h> | |
31 | #include <pcmcia/ds.h> | |
32 | #include "hisax_cfg.h" | |
33 | ||
34 | MODULE_DESCRIPTION("ISDN4Linux: PCMCIA client driver for Teles PCMCIA cards"); | |
35 | MODULE_AUTHOR("Christof Petig, christof.petig@wtal.de, Karsten Keil, kkeil@suse.de"); | |
36 | MODULE_LICENSE("GPL"); | |
37 | ||
1da177e4 LT |
38 | |
39 | /*====================================================================*/ | |
40 | ||
41 | /* Parameters that can be set with 'insmod' */ | |
42 | ||
43 | static int protocol = 2; /* EURO-ISDN Default */ | |
44 | module_param(protocol, int, 0); | |
45 | ||
475be4d8 | 46 | static int teles_cs_config(struct pcmcia_device *link) __devinit; |
fba395ee | 47 | static void teles_cs_release(struct pcmcia_device *link); |
475be4d8 | 48 | static void teles_detach(struct pcmcia_device *p_dev) __devexit; |
1da177e4 | 49 | |
1da177e4 | 50 | typedef struct local_info_t { |
fd238232 | 51 | struct pcmcia_device *p_dev; |
475be4d8 JP |
52 | int busy; |
53 | int cardnr; | |
1da177e4 LT |
54 | } local_info_t; |
55 | ||
158e33d1 | 56 | static int __devinit teles_probe(struct pcmcia_device *link) |
1da177e4 | 57 | { |
475be4d8 | 58 | local_info_t *local; |
1da177e4 | 59 | |
475be4d8 | 60 | dev_dbg(&link->dev, "teles_attach()\n"); |
1da177e4 | 61 | |
475be4d8 JP |
62 | /* Allocate space for private device-specific data */ |
63 | local = kzalloc(sizeof(local_info_t), GFP_KERNEL); | |
64 | if (!local) return -ENOMEM; | |
65 | local->cardnr = -1; | |
fd238232 | 66 | |
475be4d8 JP |
67 | local->p_dev = link; |
68 | link->priv = local; | |
1da177e4 | 69 | |
475be4d8 | 70 | link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO; |
1da177e4 | 71 | |
475be4d8 | 72 | return teles_cs_config(link); |
1da177e4 LT |
73 | } /* teles_attach */ |
74 | ||
158e33d1 | 75 | static void __devexit teles_detach(struct pcmcia_device *link) |
1da177e4 | 76 | { |
e2d40963 | 77 | local_info_t *info = link->priv; |
1da177e4 | 78 | |
e773cfe1 | 79 | dev_dbg(&link->dev, "teles_detach(0x%p)\n", link); |
1da177e4 | 80 | |
e2d40963 DB |
81 | info->busy = 1; |
82 | teles_cs_release(link); | |
1da177e4 | 83 | |
e2d40963 | 84 | kfree(info); |
1da177e4 LT |
85 | } /* teles_detach */ |
86 | ||
00990e7c | 87 | static int teles_cs_configcheck(struct pcmcia_device *p_dev, void *priv_data) |
1da177e4 | 88 | { |
5fcd4da0 DB |
89 | int j; |
90 | ||
90abdc3b | 91 | p_dev->io_lines = 5; |
00990e7c DB |
92 | p_dev->resource[0]->end = 96; |
93 | p_dev->resource[0]->flags &= IO_DATA_PATH_WIDTH; | |
94 | p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; | |
90abdc3b | 95 | |
00990e7c | 96 | if ((p_dev->resource[0]->end) && p_dev->resource[0]->start) { |
5fcd4da0 | 97 | printk(KERN_INFO "(teles_cs: looks like the 96 model)\n"); |
90abdc3b | 98 | if (!pcmcia_request_io(p_dev)) |
5fcd4da0 DB |
99 | return 0; |
100 | } else { | |
101 | printk(KERN_INFO "(teles_cs: looks like the 97 model)\n"); | |
5fcd4da0 | 102 | for (j = 0x2f0; j > 0x100; j -= 0x10) { |
90abdc3b DB |
103 | p_dev->resource[0]->start = j; |
104 | if (!pcmcia_request_io(p_dev)) | |
5fcd4da0 DB |
105 | return 0; |
106 | } | |
107 | } | |
108 | return -ENODEV; | |
1da177e4 LT |
109 | } |
110 | ||
158e33d1 | 111 | static int __devinit teles_cs_config(struct pcmcia_device *link) |
1da177e4 | 112 | { |
475be4d8 JP |
113 | int i; |
114 | IsdnCard_t icard; | |
115 | ||
116 | dev_dbg(&link->dev, "teles_config(0x%p)\n", link); | |
117 | ||
118 | i = pcmcia_loop_config(link, teles_cs_configcheck, NULL); | |
119 | if (i != 0) | |
120 | goto cs_failed; | |
121 | ||
122 | if (!link->irq) | |
123 | goto cs_failed; | |
124 | ||
125 | i = pcmcia_enable_device(link); | |
126 | if (i != 0) | |
127 | goto cs_failed; | |
15b99ac1 | 128 | |
475be4d8 JP |
129 | icard.para[0] = link->irq; |
130 | icard.para[1] = link->resource[0]->start; | |
131 | icard.protocol = protocol; | |
132 | icard.typ = ISDN_CTYPE_TELESPCMCIA; | |
133 | ||
134 | i = hisax_init_pcmcia(link, &(((local_info_t *)link->priv)->busy), &icard); | |
135 | if (i < 0) { | |
136 | printk(KERN_ERR "teles_cs: failed to initialize Teles PCMCIA %d at i/o %#x\n", | |
137 | i, (unsigned int) link->resource[0]->start); | |
138 | teles_cs_release(link); | |
139 | return -ENODEV; | |
140 | } | |
141 | ||
142 | ((local_info_t *)link->priv)->cardnr = i; | |
143 | return 0; | |
1da177e4 | 144 | |
1da177e4 | 145 | cs_failed: |
475be4d8 JP |
146 | teles_cs_release(link); |
147 | return -ENODEV; | |
1da177e4 LT |
148 | } /* teles_cs_config */ |
149 | ||
fba395ee | 150 | static void teles_cs_release(struct pcmcia_device *link) |
1da177e4 | 151 | { |
475be4d8 | 152 | local_info_t *local = link->priv; |
1da177e4 | 153 | |
475be4d8 | 154 | dev_dbg(&link->dev, "teles_cs_release(0x%p)\n", link); |
1da177e4 | 155 | |
475be4d8 JP |
156 | if (local) { |
157 | if (local->cardnr >= 0) { | |
158 | /* no unregister function with hisax */ | |
159 | HiSax_closecard(local->cardnr); | |
160 | } | |
1da177e4 | 161 | } |
5f2a71fc | 162 | |
475be4d8 | 163 | pcmcia_disable_device(link); |
1da177e4 LT |
164 | } /* teles_cs_release */ |
165 | ||
fba395ee | 166 | static int teles_suspend(struct pcmcia_device *link) |
98e4c28b | 167 | { |
98e4c28b DB |
168 | local_info_t *dev = link->priv; |
169 | ||
475be4d8 | 170 | dev->busy = 1; |
98e4c28b DB |
171 | |
172 | return 0; | |
173 | } | |
174 | ||
fba395ee | 175 | static int teles_resume(struct pcmcia_device *link) |
98e4c28b | 176 | { |
98e4c28b DB |
177 | local_info_t *dev = link->priv; |
178 | ||
475be4d8 | 179 | dev->busy = 0; |
98e4c28b DB |
180 | |
181 | return 0; | |
182 | } | |
183 | ||
1da177e4 | 184 | |
25f8f54f | 185 | static const struct pcmcia_device_id teles_ids[] = { |
0a10d73d DB |
186 | PCMCIA_DEVICE_PROD_ID12("TELES", "S0/PC", 0x67b50eae, 0xe9e70119), |
187 | PCMCIA_DEVICE_NULL, | |
188 | }; | |
189 | MODULE_DEVICE_TABLE(pcmcia, teles_ids); | |
190 | ||
1da177e4 LT |
191 | static struct pcmcia_driver teles_cs_driver = { |
192 | .owner = THIS_MODULE, | |
2e9b981a | 193 | .name = "teles_cs", |
15b99ac1 | 194 | .probe = teles_probe, |
158e33d1 | 195 | .remove = __devexit_p(teles_detach), |
0a10d73d | 196 | .id_table = teles_ids, |
98e4c28b DB |
197 | .suspend = teles_suspend, |
198 | .resume = teles_resume, | |
1da177e4 LT |
199 | }; |
200 | ||
201 | static int __init init_teles_cs(void) | |
202 | { | |
203 | return pcmcia_register_driver(&teles_cs_driver); | |
204 | } | |
205 | ||
206 | static void __exit exit_teles_cs(void) | |
207 | { | |
208 | pcmcia_unregister_driver(&teles_cs_driver); | |
1da177e4 LT |
209 | } |
210 | ||
211 | module_init(init_teles_cs); | |
212 | module_exit(exit_teles_cs); |