Merge branch 'for-linus' of git://git.infradead.org/users/sameo/mfd-2.6
[linux-btrfs-devel.git] / drivers / net / can / softing / softing_cs.c
blobc0e1b1eb87a9d5ffa4b37bea76359472e2122075
1 /*
2 * Copyright (C) 2008-2010
4 * - Kurt Van Dijck, EIA Electronics
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the version 2 of the GNU General Public License
8 * as published by the Free Software Foundation
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 #include <linux/module.h>
21 #include <linux/kernel.h>
22 #include <linux/slab.h>
24 #include <pcmcia/cistpl.h>
25 #include <pcmcia/ds.h>
27 #include "softing_platform.h"
29 static int softingcs_index;
30 static spinlock_t softingcs_index_lock;
32 static int softingcs_reset(struct platform_device *pdev, int v);
33 static int softingcs_enable_irq(struct platform_device *pdev, int v);
36 * platform_data descriptions
38 #define MHZ (1000*1000)
39 static const struct softing_platform_data softingcs_platform_data[] = {
41 .name = "CANcard",
42 .manf = 0x0168, .prod = 0x001,
43 .generation = 1,
44 .nbus = 2,
45 .freq = 16 * MHZ, .max_brp = 32, .max_sjw = 4,
46 .dpram_size = 0x0800,
47 .boot = {0x0000, 0x000000, fw_dir "bcard.bin",},
48 .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",},
49 .app = {0x0010, 0x0d0000, fw_dir "cancard.bin",},
50 .reset = softingcs_reset,
51 .enable_irq = softingcs_enable_irq,
52 }, {
53 .name = "CANcard-NEC",
54 .manf = 0x0168, .prod = 0x002,
55 .generation = 1,
56 .nbus = 2,
57 .freq = 16 * MHZ, .max_brp = 32, .max_sjw = 4,
58 .dpram_size = 0x0800,
59 .boot = {0x0000, 0x000000, fw_dir "bcard.bin",},
60 .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",},
61 .app = {0x0010, 0x0d0000, fw_dir "cancard.bin",},
62 .reset = softingcs_reset,
63 .enable_irq = softingcs_enable_irq,
64 }, {
65 .name = "CANcard-SJA",
66 .manf = 0x0168, .prod = 0x004,
67 .generation = 1,
68 .nbus = 2,
69 .freq = 20 * MHZ, .max_brp = 32, .max_sjw = 4,
70 .dpram_size = 0x0800,
71 .boot = {0x0000, 0x000000, fw_dir "bcard.bin",},
72 .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",},
73 .app = {0x0010, 0x0d0000, fw_dir "cansja.bin",},
74 .reset = softingcs_reset,
75 .enable_irq = softingcs_enable_irq,
76 }, {
77 .name = "CANcard-2",
78 .manf = 0x0168, .prod = 0x005,
79 .generation = 2,
80 .nbus = 2,
81 .freq = 24 * MHZ, .max_brp = 64, .max_sjw = 4,
82 .dpram_size = 0x1000,
83 .boot = {0x0000, 0x000000, fw_dir "bcard2.bin",},
84 .load = {0x0120, 0x00f600, fw_dir "ldcard2.bin",},
85 .app = {0x0010, 0x0d0000, fw_dir "cancrd2.bin",},
86 .reset = softingcs_reset,
87 .enable_irq = NULL,
88 }, {
89 .name = "Vector-CANcard",
90 .manf = 0x0168, .prod = 0x081,
91 .generation = 1,
92 .nbus = 2,
93 .freq = 16 * MHZ, .max_brp = 64, .max_sjw = 4,
94 .dpram_size = 0x0800,
95 .boot = {0x0000, 0x000000, fw_dir "bcard.bin",},
96 .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",},
97 .app = {0x0010, 0x0d0000, fw_dir "cancard.bin",},
98 .reset = softingcs_reset,
99 .enable_irq = softingcs_enable_irq,
100 }, {
101 .name = "Vector-CANcard-SJA",
102 .manf = 0x0168, .prod = 0x084,
103 .generation = 1,
104 .nbus = 2,
105 .freq = 20 * MHZ, .max_brp = 32, .max_sjw = 4,
106 .dpram_size = 0x0800,
107 .boot = {0x0000, 0x000000, fw_dir "bcard.bin",},
108 .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",},
109 .app = {0x0010, 0x0d0000, fw_dir "cansja.bin",},
110 .reset = softingcs_reset,
111 .enable_irq = softingcs_enable_irq,
112 }, {
113 .name = "Vector-CANcard-2",
114 .manf = 0x0168, .prod = 0x085,
115 .generation = 2,
116 .nbus = 2,
117 .freq = 24 * MHZ, .max_brp = 64, .max_sjw = 4,
118 .dpram_size = 0x1000,
119 .boot = {0x0000, 0x000000, fw_dir "bcard2.bin",},
120 .load = {0x0120, 0x00f600, fw_dir "ldcard2.bin",},
121 .app = {0x0010, 0x0d0000, fw_dir "cancrd2.bin",},
122 .reset = softingcs_reset,
123 .enable_irq = NULL,
124 }, {
125 .name = "EDICcard-NEC",
126 .manf = 0x0168, .prod = 0x102,
127 .generation = 1,
128 .nbus = 2,
129 .freq = 16 * MHZ, .max_brp = 64, .max_sjw = 4,
130 .dpram_size = 0x0800,
131 .boot = {0x0000, 0x000000, fw_dir "bcard.bin",},
132 .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",},
133 .app = {0x0010, 0x0d0000, fw_dir "cancard.bin",},
134 .reset = softingcs_reset,
135 .enable_irq = softingcs_enable_irq,
136 }, {
137 .name = "EDICcard-2",
138 .manf = 0x0168, .prod = 0x105,
139 .generation = 2,
140 .nbus = 2,
141 .freq = 24 * MHZ, .max_brp = 64, .max_sjw = 4,
142 .dpram_size = 0x1000,
143 .boot = {0x0000, 0x000000, fw_dir "bcard2.bin",},
144 .load = {0x0120, 0x00f600, fw_dir "ldcard2.bin",},
145 .app = {0x0010, 0x0d0000, fw_dir "cancrd2.bin",},
146 .reset = softingcs_reset,
147 .enable_irq = NULL,
148 }, {
149 0, 0,
153 MODULE_FIRMWARE(fw_dir "bcard.bin");
154 MODULE_FIRMWARE(fw_dir "ldcard.bin");
155 MODULE_FIRMWARE(fw_dir "cancard.bin");
156 MODULE_FIRMWARE(fw_dir "cansja.bin");
158 MODULE_FIRMWARE(fw_dir "bcard2.bin");
159 MODULE_FIRMWARE(fw_dir "ldcard2.bin");
160 MODULE_FIRMWARE(fw_dir "cancrd2.bin");
162 static __devinit const struct softing_platform_data
163 *softingcs_find_platform_data(unsigned int manf, unsigned int prod)
165 const struct softing_platform_data *lp;
167 for (lp = softingcs_platform_data; lp->manf; ++lp) {
168 if ((lp->manf == manf) && (lp->prod == prod))
169 return lp;
171 return NULL;
175 * platformdata callbacks
177 static int softingcs_reset(struct platform_device *pdev, int v)
179 struct pcmcia_device *pcmcia = to_pcmcia_dev(pdev->dev.parent);
181 dev_dbg(&pdev->dev, "pcmcia config [2] %02x\n", v ? 0 : 0x20);
182 return pcmcia_write_config_byte(pcmcia, 2, v ? 0 : 0x20);
185 static int softingcs_enable_irq(struct platform_device *pdev, int v)
187 struct pcmcia_device *pcmcia = to_pcmcia_dev(pdev->dev.parent);
189 dev_dbg(&pdev->dev, "pcmcia config [0] %02x\n", v ? 0x60 : 0);
190 return pcmcia_write_config_byte(pcmcia, 0, v ? 0x60 : 0);
194 * pcmcia check
196 static __devinit int softingcs_probe_config(struct pcmcia_device *pcmcia,
197 void *priv_data)
199 struct softing_platform_data *pdat = priv_data;
200 struct resource *pres;
201 int memspeed = 0;
203 WARN_ON(!pdat);
204 pres = pcmcia->resource[PCMCIA_IOMEM_0];
205 if (resource_size(pres) < 0x1000)
206 return -ERANGE;
208 pres->flags |= WIN_MEMORY_TYPE_CM | WIN_ENABLE;
209 if (pdat->generation < 2) {
210 pres->flags |= WIN_USE_WAIT | WIN_DATA_WIDTH_8;
211 memspeed = 3;
212 } else {
213 pres->flags |= WIN_DATA_WIDTH_16;
215 return pcmcia_request_window(pcmcia, pres, memspeed);
218 static __devexit void softingcs_remove(struct pcmcia_device *pcmcia)
220 struct platform_device *pdev = pcmcia->priv;
222 /* free bits */
223 platform_device_unregister(pdev);
224 /* release pcmcia stuff */
225 pcmcia_disable_device(pcmcia);
229 * platform_device wrapper
230 * pdev->resource has 2 entries: io & irq
232 static void softingcs_pdev_release(struct device *dev)
234 struct platform_device *pdev = to_platform_device(dev);
235 kfree(pdev);
238 static __devinit int softingcs_probe(struct pcmcia_device *pcmcia)
240 int ret;
241 struct platform_device *pdev;
242 const struct softing_platform_data *pdat;
243 struct resource *pres;
244 struct dev {
245 struct platform_device pdev;
246 struct resource res[2];
247 } *dev;
249 /* find matching platform_data */
250 pdat = softingcs_find_platform_data(pcmcia->manf_id, pcmcia->card_id);
251 if (!pdat)
252 return -ENOTTY;
254 /* setup pcmcia device */
255 pcmcia->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IOMEM |
256 CONF_AUTO_SET_VPP | CONF_AUTO_CHECK_VCC;
257 ret = pcmcia_loop_config(pcmcia, softingcs_probe_config, (void *)pdat);
258 if (ret)
259 goto pcmcia_failed;
261 ret = pcmcia_enable_device(pcmcia);
262 if (ret < 0)
263 goto pcmcia_failed;
265 pres = pcmcia->resource[PCMCIA_IOMEM_0];
266 if (!pres) {
267 ret = -EBADF;
268 goto pcmcia_bad;
271 /* create softing platform device */
272 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
273 if (!dev) {
274 ret = -ENOMEM;
275 goto mem_failed;
277 dev->pdev.resource = dev->res;
278 dev->pdev.num_resources = ARRAY_SIZE(dev->res);
279 dev->pdev.dev.release = softingcs_pdev_release;
281 pdev = &dev->pdev;
282 pdev->dev.platform_data = (void *)pdat;
283 pdev->dev.parent = &pcmcia->dev;
284 pcmcia->priv = pdev;
286 /* platform device resources */
287 pdev->resource[0].flags = IORESOURCE_MEM;
288 pdev->resource[0].start = pres->start;
289 pdev->resource[0].end = pres->end;
291 pdev->resource[1].flags = IORESOURCE_IRQ;
292 pdev->resource[1].start = pcmcia->irq;
293 pdev->resource[1].end = pdev->resource[1].start;
295 /* platform device setup */
296 spin_lock(&softingcs_index_lock);
297 pdev->id = softingcs_index++;
298 spin_unlock(&softingcs_index_lock);
299 pdev->name = "softing";
300 dev_set_name(&pdev->dev, "softingcs.%i", pdev->id);
301 ret = platform_device_register(pdev);
302 if (ret < 0)
303 goto platform_failed;
305 dev_info(&pcmcia->dev, "created %s\n", dev_name(&pdev->dev));
306 return 0;
308 platform_failed:
309 kfree(dev);
310 mem_failed:
311 pcmcia_bad:
312 pcmcia_failed:
313 pcmcia_disable_device(pcmcia);
314 pcmcia->priv = NULL;
315 return ret ?: -ENODEV;
318 static const struct pcmcia_device_id softingcs_ids[] = {
319 /* softing */
320 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0001),
321 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0002),
322 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0004),
323 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0005),
324 /* vector, manufacturer? */
325 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0081),
326 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0084),
327 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0085),
328 /* EDIC */
329 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0102),
330 PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0105),
331 PCMCIA_DEVICE_NULL,
334 MODULE_DEVICE_TABLE(pcmcia, softingcs_ids);
336 static struct pcmcia_driver softingcs_driver = {
337 .owner = THIS_MODULE,
338 .name = "softingcs",
339 .id_table = softingcs_ids,
340 .probe = softingcs_probe,
341 .remove = __devexit_p(softingcs_remove),
344 static int __init softingcs_start(void)
346 spin_lock_init(&softingcs_index_lock);
347 return pcmcia_register_driver(&softingcs_driver);
350 static void __exit softingcs_stop(void)
352 pcmcia_unregister_driver(&softingcs_driver);
355 module_init(softingcs_start);
356 module_exit(softingcs_stop);
358 MODULE_DESCRIPTION("softing CANcard driver"
359 ", links PCMCIA card to softing driver");
360 MODULE_LICENSE("GPL v2");