Commit | Line | Data |
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124b13b2 FMH |
1 | /* |
2 | comedi/drivers/ni_labpc_cs.c | |
3 | Driver for National Instruments daqcard-1200 boards | |
4 | Copyright (C) 2001, 2002, 2003 Frank Mori Hess <fmhess@users.sourceforge.net> | |
5 | ||
6 | PCMCIA crap is adapted from dummy_cs.c 1.31 2001/08/24 12:13:13 | |
7 | from the pcmcia package. | |
8 | The initial developer of the pcmcia dummy_cs.c code is David A. Hinds | |
9 | <dahinds@users.sourceforge.net>. Portions created by David A. Hinds | |
10 | are Copyright (C) 1999 David A. Hinds. | |
11 | ||
12 | This program is free software; you can redistribute it and/or modify | |
13 | it under the terms of the GNU General Public License as published by | |
14 | the Free Software Foundation; either version 2 of the License, or | |
15 | (at your option) any later version. | |
16 | ||
17 | This program is distributed in the hope that it will be useful, | |
18 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | GNU General Public License for more details. | |
21 | ||
22 | You should have received a copy of the GNU General Public License | |
23 | along with this program; if not, write to the Free Software | |
24 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
25 | ||
26 | ************************************************************************ | |
27 | */ | |
28 | /* | |
29 | Driver: ni_labpc_cs | |
30 | Description: National Instruments Lab-PC (& compatibles) | |
31 | Author: Frank Mori Hess <fmhess@users.sourceforge.net> | |
32 | Devices: [National Instruments] DAQCard-1200 (daqcard-1200) | |
33 | Status: works | |
34 | ||
35 | Thanks go to Fredrik Lingvall for much testing and perseverance in | |
36 | helping to debug daqcard-1200 support. | |
37 | ||
38 | The 1200 series boards have onboard calibration dacs for correcting | |
39 | analog input/output offsets and gains. The proper settings for these | |
40 | caldacs are stored on the board's eeprom. To read the caldac values | |
41 | from the eeprom and store them into a file that can be then be used by | |
42 | comedilib, use the comedi_calibrate program. | |
43 | ||
44 | Configuration options: | |
45 | none | |
46 | ||
47 | The daqcard-1200 has quirky chanlist requirements | |
48 | when scanning multiple channels. Multiple channel scan | |
49 | sequence must start at highest channel, then decrement down to | |
50 | channel 0. Chanlists consisting of all one channel | |
51 | are also legal, and allow you to pace conversions in bursts. | |
52 | ||
53 | */ | |
54 | ||
55 | /* | |
56 | ||
57 | NI manuals: | |
58 | 340988a (daqcard-1200) | |
59 | ||
60 | */ | |
61 | ||
b79eb4c1 | 62 | #undef LABPC_DEBUG /* debugging messages */ |
124b13b2 FMH |
63 | |
64 | #include "../comedidev.h" | |
65 | ||
66 | #include <linux/delay.h> | |
5a0e3ad6 | 67 | #include <linux/slab.h> |
124b13b2 FMH |
68 | |
69 | #include "8253.h" | |
70 | #include "8255.h" | |
71 | #include "comedi_fc.h" | |
72 | #include "ni_labpc.h" | |
73 | ||
124b13b2 FMH |
74 | #include <pcmcia/cistpl.h> |
75 | #include <pcmcia/cisreg.h> | |
76 | #include <pcmcia/ds.h> | |
77 | ||
96233181 | 78 | static struct pcmcia_device *pcmcia_cur_dev; |
124b13b2 | 79 | |
da91b269 | 80 | static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it); |
124b13b2 | 81 | |
9ad00740 | 82 | static const struct labpc_board_struct labpc_cs_boards[] = { |
124b13b2 | 83 | { |
0a85b6f0 | 84 | .name = "daqcard-1200", |
63a4eca5 BM |
85 | .device_id = 0x103, /* 0x10b is manufacturer id, |
86 | 0x103 is device id */ | |
0a85b6f0 MT |
87 | .ai_speed = 10000, |
88 | .bustype = pcmcia_bustype, | |
89 | .register_layout = labpc_1200_layout, | |
90 | .has_ao = 1, | |
91 | .ai_range_table = &range_labpc_1200_ai, | |
92 | .ai_range_code = labpc_1200_ai_gain_bits, | |
93 | .ai_range_is_unipolar = labpc_1200_is_unipolar, | |
94 | .ai_scan_up = 0, | |
95 | .memory_mapped_io = 0, | |
96 | }, | |
124b13b2 FMH |
97 | /* duplicate entry, to support using alternate name */ |
98 | { | |
0a85b6f0 MT |
99 | .name = "ni_labpc_cs", |
100 | .device_id = 0x103, | |
101 | .ai_speed = 10000, | |
102 | .bustype = pcmcia_bustype, | |
103 | .register_layout = labpc_1200_layout, | |
104 | .has_ao = 1, | |
105 | .ai_range_table = &range_labpc_1200_ai, | |
106 | .ai_range_code = labpc_1200_ai_gain_bits, | |
107 | .ai_range_is_unipolar = labpc_1200_is_unipolar, | |
108 | .ai_scan_up = 0, | |
109 | .memory_mapped_io = 0, | |
110 | }, | |
124b13b2 FMH |
111 | }; |
112 | ||
113 | /* | |
114 | * Useful for shorthand access to the particular board structure | |
115 | */ | |
9ad00740 | 116 | #define thisboard ((const struct labpc_board_struct *)dev->board_ptr) |
124b13b2 | 117 | |
139dfbdf | 118 | static struct comedi_driver driver_labpc_cs = { |
124b13b2 FMH |
119 | .driver_name = "ni_labpc_cs", |
120 | .module = THIS_MODULE, | |
121 | .attach = &labpc_attach, | |
122 | .detach = &labpc_common_detach, | |
8629efa4 | 123 | .num_names = ARRAY_SIZE(labpc_cs_boards), |
124b13b2 | 124 | .board_name = &labpc_cs_boards[0].name, |
9ad00740 | 125 | .offset = sizeof(struct labpc_board_struct), |
124b13b2 FMH |
126 | }; |
127 | ||
da91b269 | 128 | static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it) |
124b13b2 FMH |
129 | { |
130 | unsigned long iobase = 0; | |
131 | unsigned int irq = 0; | |
132 | struct pcmcia_device *link; | |
133 | ||
134 | /* allocate and initialize dev->private */ | |
0a4eb4b6 | 135 | if (alloc_private(dev, sizeof(struct labpc_private)) < 0) |
124b13b2 FMH |
136 | return -ENOMEM; |
137 | ||
2696fb57 | 138 | /* get base address, irq etc. based on bustype */ |
124b13b2 FMH |
139 | switch (thisboard->bustype) { |
140 | case pcmcia_bustype: | |
141 | link = pcmcia_cur_dev; /* XXX hack */ | |
142 | if (!link) | |
143 | return -EIO; | |
9a017a91 | 144 | iobase = link->resource[0]->start; |
eb14120f | 145 | irq = link->irq; |
124b13b2 FMH |
146 | break; |
147 | default: | |
327ffc0c | 148 | pr_err("bug! couldn't determine board type\n"); |
124b13b2 FMH |
149 | return -EINVAL; |
150 | break; | |
151 | } | |
152 | return labpc_common_attach(dev, iobase, irq, 0); | |
153 | } | |
154 | ||
124b13b2 FMH |
155 | static void labpc_config(struct pcmcia_device *link); |
156 | static void labpc_release(struct pcmcia_device *link); | |
157 | static int labpc_cs_suspend(struct pcmcia_device *p_dev); | |
158 | static int labpc_cs_resume(struct pcmcia_device *p_dev); | |
159 | ||
124b13b2 FMH |
160 | static int labpc_cs_attach(struct pcmcia_device *); |
161 | static void labpc_cs_detach(struct pcmcia_device *); | |
162 | ||
e3f9f2c8 | 163 | struct local_info_t { |
124b13b2 | 164 | struct pcmcia_device *link; |
124b13b2 FMH |
165 | int stop; |
166 | struct bus_operations *bus; | |
e3f9f2c8 | 167 | }; |
124b13b2 | 168 | |
124b13b2 FMH |
169 | static int labpc_cs_attach(struct pcmcia_device *link) |
170 | { | |
e3f9f2c8 | 171 | struct local_info_t *local; |
124b13b2 | 172 | |
55a19b39 | 173 | dev_dbg(&link->dev, "labpc_cs_attach()\n"); |
124b13b2 FMH |
174 | |
175 | /* Allocate space for private device-specific data */ | |
e3f9f2c8 | 176 | local = kzalloc(sizeof(struct local_info_t), GFP_KERNEL); |
124b13b2 FMH |
177 | if (!local) |
178 | return -ENOMEM; | |
179 | local->link = link; | |
180 | link->priv = local; | |
181 | ||
124b13b2 FMH |
182 | pcmcia_cur_dev = link; |
183 | ||
184 | labpc_config(link); | |
185 | ||
186 | return 0; | |
187 | } /* labpc_cs_attach */ | |
188 | ||
124b13b2 FMH |
189 | static void labpc_cs_detach(struct pcmcia_device *link) |
190 | { | |
99bd8f22 JMC |
191 | ((struct local_info_t *)link->priv)->stop = 1; |
192 | labpc_release(link); | |
124b13b2 | 193 | |
92c4bad7 BM |
194 | /* This points to the parent local_info_t struct (may be null) */ |
195 | kfree(link->priv); | |
124b13b2 | 196 | |
484ecc95 | 197 | } |
124b13b2 | 198 | |
55a19b39 | 199 | static int labpc_pcmcia_config_loop(struct pcmcia_device *p_dev, |
55a19b39 | 200 | void *priv_data) |
124b13b2 | 201 | { |
00990e7c DB |
202 | if (p_dev->config_index == 0) |
203 | return -EINVAL; | |
c3744138 | 204 | |
00990e7c | 205 | return pcmcia_request_io(p_dev); |
55a19b39 | 206 | } |
124b13b2 | 207 | |
124b13b2 | 208 | |
55a19b39 DB |
209 | static void labpc_config(struct pcmcia_device *link) |
210 | { | |
55a19b39 | 211 | int ret; |
124b13b2 | 212 | |
55a19b39 | 213 | dev_dbg(&link->dev, "labpc_config\n"); |
124b13b2 | 214 | |
440eed43 | 215 | link->config_flags |= CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ | |
00990e7c | 216 | CONF_AUTO_AUDIO | CONF_AUTO_SET_IO; |
440eed43 | 217 | |
0f52e86d | 218 | ret = pcmcia_loop_config(link, labpc_pcmcia_config_loop, NULL); |
55a19b39 DB |
219 | if (ret) { |
220 | dev_warn(&link->dev, "no configuration found\n"); | |
221 | goto failed; | |
124b13b2 FMH |
222 | } |
223 | ||
eb14120f DB |
224 | if (!link->irq) |
225 | goto failed; | |
124b13b2 | 226 | |
1ac71e5a | 227 | ret = pcmcia_enable_device(link); |
55a19b39 DB |
228 | if (ret) |
229 | goto failed; | |
124b13b2 | 230 | |
124b13b2 FMH |
231 | return; |
232 | ||
55a19b39 | 233 | failed: |
124b13b2 FMH |
234 | labpc_release(link); |
235 | ||
236 | } /* labpc_config */ | |
237 | ||
238 | static void labpc_release(struct pcmcia_device *link) | |
239 | { | |
55a19b39 | 240 | dev_dbg(&link->dev, "labpc_release\n"); |
124b13b2 FMH |
241 | |
242 | pcmcia_disable_device(link); | |
243 | } /* labpc_release */ | |
244 | ||
124b13b2 FMH |
245 | static int labpc_cs_suspend(struct pcmcia_device *link) |
246 | { | |
e3f9f2c8 | 247 | struct local_info_t *local = link->priv; |
124b13b2 FMH |
248 | |
249 | /* Mark the device as stopped, to block IO until later */ | |
250 | local->stop = 1; | |
251 | return 0; | |
252 | } /* labpc_cs_suspend */ | |
253 | ||
254 | static int labpc_cs_resume(struct pcmcia_device *link) | |
255 | { | |
e3f9f2c8 | 256 | struct local_info_t *local = link->priv; |
124b13b2 FMH |
257 | |
258 | local->stop = 0; | |
259 | return 0; | |
260 | } /* labpc_cs_resume */ | |
261 | ||
2202a5a7 | 262 | static const struct pcmcia_device_id labpc_cs_ids[] = { |
124b13b2 FMH |
263 | /* N.B. These IDs should match those in labpc_cs_boards (ni_labpc.c) */ |
264 | PCMCIA_DEVICE_MANF_CARD(0x010b, 0x0103), /* daqcard-1200 */ | |
265 | PCMCIA_DEVICE_NULL | |
266 | }; | |
267 | ||
268 | MODULE_DEVICE_TABLE(pcmcia, labpc_cs_ids); | |
6c7f8196 AK |
269 | MODULE_AUTHOR("Frank Mori Hess <fmhess@users.sourceforge.net>"); |
270 | MODULE_DESCRIPTION("Comedi driver for National Instruments Lab-PC"); | |
271 | MODULE_LICENSE("GPL"); | |
124b13b2 | 272 | |
0dcee6fe | 273 | static struct pcmcia_driver labpc_cs_driver = { |
124b13b2 FMH |
274 | .probe = labpc_cs_attach, |
275 | .remove = labpc_cs_detach, | |
276 | .suspend = labpc_cs_suspend, | |
277 | .resume = labpc_cs_resume, | |
278 | .id_table = labpc_cs_ids, | |
279 | .owner = THIS_MODULE, | |
2e9b981a | 280 | .name = "daqcard-1200", |
124b13b2 FMH |
281 | }; |
282 | ||
283 | static int __init init_labpc_cs(void) | |
284 | { | |
124b13b2 FMH |
285 | pcmcia_register_driver(&labpc_cs_driver); |
286 | return 0; | |
287 | } | |
288 | ||
289 | static void __exit exit_labpc_cs(void) | |
290 | { | |
124b13b2 FMH |
291 | pcmcia_unregister_driver(&labpc_cs_driver); |
292 | } | |
293 | ||
0dcee6fe | 294 | static int __init labpc_init_module(void) |
124b13b2 FMH |
295 | { |
296 | int ret; | |
297 | ||
298 | ret = init_labpc_cs(); | |
299 | if (ret < 0) | |
300 | return ret; | |
301 | ||
302 | return comedi_driver_register(&driver_labpc_cs); | |
303 | } | |
304 | ||
0dcee6fe | 305 | static void __exit labpc_exit_module(void) |
124b13b2 FMH |
306 | { |
307 | exit_labpc_cs(); | |
308 | comedi_driver_unregister(&driver_labpc_cs); | |
309 | } | |
310 | ||
124b13b2 FMH |
311 | module_init(labpc_init_module); |
312 | module_exit(labpc_exit_module); |