aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/can/softing/softing_cs.c
blob: c0e1b1eb87a9d5ffa4b37bea76359472e2122075 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
/*
 * Copyright (C) 2008-2010
 *
 * - Kurt Van Dijck, EIA Electronics
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the version 2 of the GNU General Public License
 * as published by the Free Software Foundation
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/slab.h>

#include <pcmcia/cistpl.h>
#include <pcmcia/ds.h>

#include "softing_platform.h"

static int softingcs_index;
static spinlock_t softingcs_index_lock;

static int softingcs_reset(struct platform_device *pdev, int v);
static int softingcs_enable_irq(struct platform_device *pdev, int v);

/*
 * platform_data descriptions
 */
#define MHZ (1000*1000)
static const struct softing_platform_data softingcs_platform_data[] = {
{
	.name = "CANcard",
	.manf = 0x0168, .prod = 0x001,
	.generation = 1,
	.nbus = 2,
	.freq = 16 * MHZ, .max_brp = 32, .max_sjw = 4,
	.dpram_size = 0x0800,
	.boot = {0x0000, 0x000000, fw_dir "bcard.bin",},
	.load = {0x0120, 0x00f600, fw_dir "ldcard.bin",},
	.app = {0x0010, 0x0d0000, fw_dir "cancard.bin",},
	.reset = softingcs_reset,
	.enable_irq = softingcs_enable_irq,
}, {
	.name = "CANcard-NEC",
	.manf = 0x0168, .prod = 0x002,
	.generation = 1,
	.nbus = 2,
	.freq = 16 * MHZ, .max_brp = 32, .max_sjw = 4,
	.dpram_size = 0x0800,
	.boot = {0x0000, 0x000000, fw_dir "bcard.bin",},
	.load = {0x0120, 0x00f600, fw_dir "ldcard.bin",},
	.app = {0x0010, 0x0d0000, fw_dir "cancard.bin",},
	.reset = softingcs_reset,
	.enable_irq = softingcs_enable_irq,
}, {
	.name = "CANcard-SJA",
	.manf = 0x0168, .prod = 0x004,
	.generation = 1,
	.nbus = 2,
	.freq = 20 * MHZ, .max_brp = 32, .max_sjw = 4,
	.dpram_size = 0x0800,
	.boot = {0x0000, 0x000000, fw_dir "bcard.bin",},
	.load = {0x0120, 0x00f600, fw_dir "ldcard.bin",},
	.app = {0x0010, 0x0d0000, fw_dir "cansja.bin",},
	.reset = softingcs_reset,
	.enable_irq = softingcs_enable_irq,
}, {
	.name = "CANcard-2",
	.manf = 0x0168, .prod = 0x005,
	.generation = 2,
	.nbus = 2,
	.freq = 24 * MHZ, .max_brp = 64, .max_sjw = 4,
	.dpram_size = 0x1000,
	.boot = {0x0000, 0x000000, fw_dir "bcard2.bin",},
	.load = {0x0120, 0x00f600, fw_dir "ldcard2.bin",},
	.app = {0x0010, 0x0d0000, fw_dir "cancrd2.bin",},
	.reset = softingcs_reset,
	.enable_irq = NULL,
}, {
	.name = "Vector-CANcard",
	.manf = 0x0168, .prod = 0x081,
	.generation = 1,
	.nbus = 2,
	.freq = 16 * MHZ, .max_brp = 64, .max_sjw = 4,
	.dpram_size = 0x0800,
	.boot = {0x0000, 0x000000, fw_dir "bcard.bin",},
	.load = {0x0120, 0x00f600, fw_dir "ldcard.bin",},
	.app = {0x0010, 0x0d0000, fw_dir "cancard.bin",},
	.reset = softingcs_reset,
	.enable_irq = softingcs_enable_irq,
}, {
	.name = "Vector-CANcard-SJA",
	.manf = 0x0168, .prod = 0x084,
	.generation = 1,
	.nbus = 2,
	.freq = 20 * MHZ, .max_brp = 32, .max_sjw = 4,
	.dpram_size = 0x0800,
	.boot = {0x0000, 0x000000, fw_dir "bcard.bin",},
	.load = {0x0120, 0x00f600, fw_dir "ldcard.bin",},
	.app = {0x0010, 0x0d0000, fw_dir "cansja.bin",},
	.reset = softingcs_reset,
	.enable_irq = softingcs_enable_irq,
}, {
	.name = "Vector-CANcard-2",
	.manf = 0x0168, .prod = 0x085,
	.generation = 2,
	.nbus = 2,
	.freq = 24 * MHZ, .max_brp = 64, .max_sjw = 4,
	.dpram_size = 0x1000,
	.boot = {0x0000, 0x000000, fw_dir "bcard2.bin",},
	.load = {0x0120, 0x00f600, fw_dir "ldcard2.bin",},
	.app = {0x0010, 0x0d0000, fw_dir "cancrd2.bin",},
	.reset = softingcs_reset,
	.enable_irq = NULL,
}, {
	.name = "EDICcard-NEC",
	.manf = 0x0168, .prod = 0x102,
	.generation = 1,
	.nbus = 2,
	.freq = 16 * MHZ, .max_brp = 64, .max_sjw = 4,
	.dpram_size = 0x0800,
	.boot = {0x0000, 0x000000, fw_dir "bcard.bin",},
	.load = {0x0120, 0x00f600, fw_dir "ldcard.bin",},
	.app = {0x0010, 0x0d0000, fw_dir "cancard.bin",},
	.reset = softingcs_reset,
	.enable_irq = softingcs_enable_irq,
}, {
	.name = "EDICcard-2",
	.manf = 0x0168, .prod = 0x105,
	.generation = 2,
	.nbus = 2,
	.freq = 24 * MHZ, .max_brp = 64, .max_sjw = 4,
	.dpram_size = 0x1000,
	.boot = {0x0000, 0x000000, fw_dir "bcard2.bin",},
	.load = {0x0120, 0x00f600, fw_dir "ldcard2.bin",},
	.app = {0x0010, 0x0d0000, fw_dir "cancrd2.bin",},
	.reset = softingcs_reset,
	.enable_irq = NULL,
}, {
	0, 0,
},
};

MODULE_FIRMWARE(fw_dir "bcard.bin");
MODULE_FIRMWARE(fw_dir "ldcard.bin");
MODULE_FIRMWARE(fw_dir "cancard.bin");
MODULE_FIRMWARE(fw_dir "cansja.bin");

MODULE_FIRMWARE(fw_dir "bcard2.bin");
MODULE_FIRMWARE(fw_dir "ldcard2.bin");
MODULE_FIRMWARE(fw_dir "cancrd2.bin");

static __devinit const struct softing_platform_data
*softingcs_find_platform_data(unsigned int manf, unsigned int prod)
{
	const struct softing_platform_data *lp;

	for (lp = softingcs_platform_data; lp->manf; ++lp) {
		if ((lp->manf == manf) && (lp->prod == prod))
			return lp;
	}
	return NULL;
}

/*
 * platformdata callbacks
 */
static int softingcs_reset(struct platform_device *pdev, int v)
{
	struct pcmcia_device *pcmcia = to_pcmcia_dev(pdev->dev.parent);

	dev_dbg(&pdev->dev, "pcmcia config [2] %02x\n", v ? 0 : 0x20);
	return pcmcia_write_config_byte(pcmcia, 2, v ? 0 : 0x20);
}

static int softingcs_enable_irq(struct platform_device *pdev, int v)
{
	struct pcmcia_device *pcmcia = to_pcmcia_dev(pdev->dev.parent);

	dev_dbg(&pdev->dev, "pcmcia config [0] %02x\n", v ? 0x60 : 0);
	return pcmcia_write_config_byte(pcmcia, 0, v ? 0x60 : 0);
}

/*
 * pcmcia check
 */
static __devinit int softingcs_probe_config(struct pcmcia_device *pcmcia,
		void *priv_data)
{
	struct softing_platform_data *pdat = priv_data;
	struct resource *pres;
	int memspeed = 0;

	WARN_ON(!pdat);
	pres = pcmcia->resource[PCMCIA_IOMEM_0];
	if (resource_size(pres) < 0x1000)
		return -ERANGE;

	pres->flags |= WIN_MEMORY_TYPE_CM | WIN_ENABLE;
	if (pdat->generation < 2) {
		pres->flags |= WIN_USE_WAIT | WIN_DATA_WIDTH_8;
		memspeed = 3;
	} else {
		pres->flags |= WIN_DATA_WIDTH_16;
	}
	return pcmcia_request_window(pcmcia, pres, memspeed);
}

static __devexit void softingcs_remove(struct pcmcia_device *pcmcia)
{
	struct platform_device *pdev = pcmcia->priv;

	/* free bits */
	platform_device_unregister(pdev);
	/* release pcmcia stuff */
	pcmcia_disable_device(pcmcia);
}

/*
 * platform_device wrapper
 * pdev->resource has 2 entries: io & irq
 */
static void softingcs_pdev_release(struct device *dev)
{
	struct platform_device *pdev = to_platform_device(dev);
	kfree(pdev);
}

static __devinit int softingcs_probe(struct pcmcia_device *pcmcia)
{
	int ret;
	struct platform_device *pdev;
	const struct softing_platform_data *pdat;
	struct resource *pres;
	struct dev {
		struct platform_device pdev;
		struct resource res[2];
	} *dev;

	/* find matching platform_data */
	pdat = softingcs_find_platform_data(pcmcia->manf_id, pcmcia->card_id);
	if (!pdat)
		return -ENOTTY;

	/* setup pcmcia device */
	pcmcia->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IOMEM |
		CONF_AUTO_SET_VPP | CONF_AUTO_CHECK_VCC;
	ret = pcmcia_loop_config(pcmcia, softingcs_probe_config, (void *)pdat);
	if (ret)
		goto pcmcia_failed;

	ret = pcmcia_enable_device(pcmcia);
	if (ret < 0)
		goto pcmcia_failed;

	pres = pcmcia->resource[PCMCIA_IOMEM_0];
	if (!pres) {
		ret = -EBADF;
		goto pcmcia_bad;
	}

	/* create softing platform device */
	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
	if (!dev) {
		ret = -ENOMEM;
		goto mem_failed;
	}
	dev->pdev.resource = dev->res;
	dev->pdev.num_resources = ARRAY_SIZE(dev->res);
	dev->pdev.dev.release = softingcs_pdev_release;

	pdev = &dev->pdev;
	pdev->dev.platform_data = (void *)pdat;
	pdev->dev.parent = &pcmcia->dev;
	pcmcia->priv = pdev;

	/* platform device resources */
	pdev->resource[0].flags = IORESOURCE_MEM;
	pdev->resource[0].start = pres->start;
	pdev->resource[0].end = pres->end;

	pdev->resource[1].flags = IORESOURCE_IRQ;
	pdev->resource[1].start = pcmcia->irq;
	pdev->resource[1].end = pdev->resource[1].start;

	/* platform device setup */
	spin_lock(&softingcs_index_lock);
	pdev->id = softingcs_index++;
	spin_unlock(&softingcs_index_lock);
	pdev->name = "softing";
	dev_set_name(&pdev->dev, "softingcs.%i", pdev->id);
	ret = platform_device_register(pdev);
	if (ret < 0)
		goto platform_failed;

	dev_info(&pcmcia->dev, "created %s\n", dev_name(&pdev->dev));
	return 0;

platform_failed:
	kfree(dev);
mem_failed:
pcmcia_bad:
pcmcia_failed:
	pcmcia_disable_device(pcmcia);
	pcmcia->priv = NULL;
	return ret ?: -ENODEV;
}

static const struct pcmcia_device_id softingcs_ids[] = {
	/* softing */
	PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0001),
	PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0002),
	PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0004),
	PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0005),
	/* vector, manufacturer? */
	PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0081),
	PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0084),
	PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0085),
	/* EDIC */
	PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0102),
	PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0105),
	PCMCIA_DEVICE_NULL,
};

MODULE_DEVICE_TABLE(pcmcia, softingcs_ids);

static struct pcmcia_driver softingcs_driver = {
	.owner		= THIS_MODULE,
	.name		= "softingcs",
	.id_table	= softingcs_ids,
	.probe		= softingcs_probe,
	.remove		= __devexit_p(softingcs_remove),
};

static int __init softingcs_start(void)
{
	spin_lock_init(&softingcs_index_lock);
	return pcmcia_register_driver(&softingcs_driver);
}

static void __exit softingcs_stop(void)
{
	pcmcia_unregister_driver(&softingcs_driver);
}

module_init(softingcs_start);
module_exit(softingcs_stop);

MODULE_DESCRIPTION("softing CANcard driver"
		", links PCMCIA card to softing driver");
MODULE_LICENSE("GPL v2");