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Commit | Line | Data |
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ebb81fdb MS |
1 | /* |
2 | * Description: | |
3 | * Device Driver for the Infineon Technologies | |
f9abb020 | 4 | * SLD 9630 TT 1.1 and SLB 9635 TT 1.2 Trusted Platform Module |
ebb81fdb MS |
5 | * Specifications at www.trustedcomputinggroup.org |
6 | * | |
7 | * Copyright (C) 2005, Marcel Selhorst <selhorst@crypto.rub.de> | |
8 | * Applied Data Security Group, Ruhr-University Bochum, Germany | |
9 | * Project-Homepage: http://www.prosec.rub.de/tpm | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or | |
12 | * modify it under the terms of the GNU General Public License as | |
13 | * published by the Free Software Foundation, version 2 of the | |
14 | * License. | |
ebb81fdb MS |
15 | */ |
16 | ||
f9abb020 | 17 | #include <linux/pnp.h> |
ebb81fdb MS |
18 | #include "tpm.h" |
19 | ||
20 | /* Infineon specific definitions */ | |
21 | /* maximum number of WTX-packages */ | |
22 | #define TPM_MAX_WTX_PACKAGES 50 | |
23 | /* msleep-Time for WTX-packages */ | |
24 | #define TPM_WTX_MSLEEP_TIME 20 | |
25 | /* msleep-Time --> Interval to check status register */ | |
26 | #define TPM_MSLEEP_TIME 3 | |
27 | /* gives number of max. msleep()-calls before throwing timeout */ | |
28 | #define TPM_MAX_TRIES 5000 | |
f9abb020 MS |
29 | #define TPM_INFINEON_DEV_VEN_VALUE 0x15D1 |
30 | ||
e8a65015 | 31 | /* These values will be filled after PnP-call */ |
f9abb020 MS |
32 | static int TPM_INF_DATA = 0; |
33 | static int TPM_INF_ADDR = 0; | |
e8a65015 | 34 | static int pnp_registered = 0; |
ebb81fdb MS |
35 | |
36 | /* TPM header definitions */ | |
37 | enum infineon_tpm_header { | |
38 | TPM_VL_VER = 0x01, | |
39 | TPM_VL_CHANNEL_CONTROL = 0x07, | |
40 | TPM_VL_CHANNEL_PERSONALISATION = 0x0A, | |
41 | TPM_VL_CHANNEL_TPM = 0x0B, | |
42 | TPM_VL_CONTROL = 0x00, | |
43 | TPM_INF_NAK = 0x15, | |
44 | TPM_CTRL_WTX = 0x10, | |
45 | TPM_CTRL_WTX_ABORT = 0x18, | |
46 | TPM_CTRL_WTX_ABORT_ACK = 0x18, | |
47 | TPM_CTRL_ERROR = 0x20, | |
48 | TPM_CTRL_CHAININGACK = 0x40, | |
49 | TPM_CTRL_CHAINING = 0x80, | |
50 | TPM_CTRL_DATA = 0x04, | |
51 | TPM_CTRL_DATA_CHA = 0x84, | |
52 | TPM_CTRL_DATA_CHA_ACK = 0xC4 | |
53 | }; | |
54 | ||
55 | enum infineon_tpm_register { | |
56 | WRFIFO = 0x00, | |
57 | RDFIFO = 0x01, | |
58 | STAT = 0x02, | |
59 | CMD = 0x03 | |
60 | }; | |
61 | ||
62 | enum infineon_tpm_command_bits { | |
63 | CMD_DIS = 0x00, | |
64 | CMD_LP = 0x01, | |
65 | CMD_RES = 0x02, | |
66 | CMD_IRQC = 0x06 | |
67 | }; | |
68 | ||
69 | enum infineon_tpm_status_bits { | |
70 | STAT_XFE = 0x00, | |
71 | STAT_LPA = 0x01, | |
72 | STAT_FOK = 0x02, | |
73 | STAT_TOK = 0x03, | |
74 | STAT_IRQA = 0x06, | |
75 | STAT_RDA = 0x07 | |
76 | }; | |
77 | ||
78 | /* some outgoing values */ | |
79 | enum infineon_tpm_values { | |
80 | CHIP_ID1 = 0x20, | |
81 | CHIP_ID2 = 0x21, | |
3dcce8e2 | 82 | TPM_DAR = 0x30, |
ebb81fdb MS |
83 | RESET_LP_IRQC_DISABLE = 0x41, |
84 | ENABLE_REGISTER_PAIR = 0x55, | |
85 | IOLIMH = 0x60, | |
86 | IOLIML = 0x61, | |
87 | DISABLE_REGISTER_PAIR = 0xAA, | |
88 | IDVENL = 0xF1, | |
89 | IDVENH = 0xF2, | |
90 | IDPDL = 0xF3, | |
91 | IDPDH = 0xF4 | |
92 | }; | |
93 | ||
94 | static int number_of_wtx; | |
95 | ||
96 | static int empty_fifo(struct tpm_chip *chip, int clear_wrfifo) | |
97 | { | |
98 | int status; | |
99 | int check = 0; | |
100 | int i; | |
101 | ||
102 | if (clear_wrfifo) { | |
103 | for (i = 0; i < 4096; i++) { | |
104 | status = inb(chip->vendor->base + WRFIFO); | |
105 | if (status == 0xff) { | |
106 | if (check == 5) | |
107 | break; | |
108 | else | |
109 | check++; | |
110 | } | |
111 | } | |
112 | } | |
113 | /* Note: The values which are currently in the FIFO of the TPM | |
114 | are thrown away since there is no usage for them. Usually, | |
115 | this has nothing to say, since the TPM will give its answer | |
116 | immediately or will be aborted anyway, so the data here is | |
117 | usually garbage and useless. | |
118 | We have to clean this, because the next communication with | |
119 | the TPM would be rubbish, if there is still some old data | |
120 | in the Read FIFO. | |
121 | */ | |
122 | i = 0; | |
123 | do { | |
124 | status = inb(chip->vendor->base + RDFIFO); | |
125 | status = inb(chip->vendor->base + STAT); | |
126 | i++; | |
127 | if (i == TPM_MAX_TRIES) | |
128 | return -EIO; | |
129 | } while ((status & (1 << STAT_RDA)) != 0); | |
130 | return 0; | |
131 | } | |
132 | ||
133 | static int wait(struct tpm_chip *chip, int wait_for_bit) | |
134 | { | |
135 | int status; | |
136 | int i; | |
137 | for (i = 0; i < TPM_MAX_TRIES; i++) { | |
138 | status = inb(chip->vendor->base + STAT); | |
139 | /* check the status-register if wait_for_bit is set */ | |
140 | if (status & 1 << wait_for_bit) | |
141 | break; | |
142 | msleep(TPM_MSLEEP_TIME); | |
143 | } | |
144 | if (i == TPM_MAX_TRIES) { /* timeout occurs */ | |
145 | if (wait_for_bit == STAT_XFE) | |
e659a3fe | 146 | dev_err(chip->dev, |
ebb81fdb MS |
147 | "Timeout in wait(STAT_XFE)\n"); |
148 | if (wait_for_bit == STAT_RDA) | |
e659a3fe | 149 | dev_err(chip->dev, |
ebb81fdb MS |
150 | "Timeout in wait(STAT_RDA)\n"); |
151 | return -EIO; | |
152 | } | |
153 | return 0; | |
154 | }; | |
155 | ||
156 | static void wait_and_send(struct tpm_chip *chip, u8 sendbyte) | |
157 | { | |
158 | wait(chip, STAT_XFE); | |
159 | outb(sendbyte, chip->vendor->base + WRFIFO); | |
160 | } | |
161 | ||
162 | /* Note: WTX means Waiting-Time-Extension. Whenever the TPM needs more | |
163 | calculation time, it sends a WTX-package, which has to be acknowledged | |
164 | or aborted. This usually occurs if you are hammering the TPM with key | |
165 | creation. Set the maximum number of WTX-packages in the definitions | |
166 | above, if the number is reached, the waiting-time will be denied | |
167 | and the TPM command has to be resend. | |
168 | */ | |
169 | ||
170 | static void tpm_wtx(struct tpm_chip *chip) | |
171 | { | |
172 | number_of_wtx++; | |
e659a3fe | 173 | dev_info(chip->dev, "Granting WTX (%02d / %02d)\n", |
ebb81fdb MS |
174 | number_of_wtx, TPM_MAX_WTX_PACKAGES); |
175 | wait_and_send(chip, TPM_VL_VER); | |
176 | wait_and_send(chip, TPM_CTRL_WTX); | |
177 | wait_and_send(chip, 0x00); | |
178 | wait_and_send(chip, 0x00); | |
179 | msleep(TPM_WTX_MSLEEP_TIME); | |
180 | } | |
181 | ||
182 | static void tpm_wtx_abort(struct tpm_chip *chip) | |
183 | { | |
e659a3fe | 184 | dev_info(chip->dev, "Aborting WTX\n"); |
ebb81fdb MS |
185 | wait_and_send(chip, TPM_VL_VER); |
186 | wait_and_send(chip, TPM_CTRL_WTX_ABORT); | |
187 | wait_and_send(chip, 0x00); | |
188 | wait_and_send(chip, 0x00); | |
189 | number_of_wtx = 0; | |
190 | msleep(TPM_WTX_MSLEEP_TIME); | |
191 | } | |
192 | ||
193 | static int tpm_inf_recv(struct tpm_chip *chip, u8 * buf, size_t count) | |
194 | { | |
195 | int i; | |
196 | int ret; | |
197 | u32 size = 0; | |
198 | ||
199 | recv_begin: | |
200 | /* start receiving header */ | |
201 | for (i = 0; i < 4; i++) { | |
202 | ret = wait(chip, STAT_RDA); | |
203 | if (ret) | |
204 | return -EIO; | |
205 | buf[i] = inb(chip->vendor->base + RDFIFO); | |
206 | } | |
207 | ||
208 | if (buf[0] != TPM_VL_VER) { | |
e659a3fe | 209 | dev_err(chip->dev, |
ebb81fdb MS |
210 | "Wrong transport protocol implementation!\n"); |
211 | return -EIO; | |
212 | } | |
213 | ||
214 | if (buf[1] == TPM_CTRL_DATA) { | |
215 | /* size of the data received */ | |
216 | size = ((buf[2] << 8) | buf[3]); | |
217 | ||
218 | for (i = 0; i < size; i++) { | |
219 | wait(chip, STAT_RDA); | |
220 | buf[i] = inb(chip->vendor->base + RDFIFO); | |
221 | } | |
222 | ||
223 | if ((size == 0x6D00) && (buf[1] == 0x80)) { | |
e659a3fe | 224 | dev_err(chip->dev, |
ebb81fdb MS |
225 | "Error handling on vendor layer!\n"); |
226 | return -EIO; | |
227 | } | |
228 | ||
229 | for (i = 0; i < size; i++) | |
230 | buf[i] = buf[i + 6]; | |
231 | ||
232 | size = size - 6; | |
233 | return size; | |
234 | } | |
235 | ||
236 | if (buf[1] == TPM_CTRL_WTX) { | |
e659a3fe | 237 | dev_info(chip->dev, "WTX-package received\n"); |
ebb81fdb MS |
238 | if (number_of_wtx < TPM_MAX_WTX_PACKAGES) { |
239 | tpm_wtx(chip); | |
240 | goto recv_begin; | |
241 | } else { | |
242 | tpm_wtx_abort(chip); | |
243 | goto recv_begin; | |
244 | } | |
245 | } | |
246 | ||
247 | if (buf[1] == TPM_CTRL_WTX_ABORT_ACK) { | |
e659a3fe | 248 | dev_info(chip->dev, "WTX-abort acknowledged\n"); |
ebb81fdb MS |
249 | return size; |
250 | } | |
251 | ||
252 | if (buf[1] == TPM_CTRL_ERROR) { | |
e659a3fe | 253 | dev_err(chip->dev, "ERROR-package received:\n"); |
ebb81fdb | 254 | if (buf[4] == TPM_INF_NAK) |
e659a3fe | 255 | dev_err(chip->dev, |
ebb81fdb MS |
256 | "-> Negative acknowledgement" |
257 | " - retransmit command!\n"); | |
258 | return -EIO; | |
259 | } | |
260 | return -EIO; | |
261 | } | |
262 | ||
263 | static int tpm_inf_send(struct tpm_chip *chip, u8 * buf, size_t count) | |
264 | { | |
265 | int i; | |
266 | int ret; | |
267 | u8 count_high, count_low, count_4, count_3, count_2, count_1; | |
268 | ||
269 | /* Disabling Reset, LP and IRQC */ | |
270 | outb(RESET_LP_IRQC_DISABLE, chip->vendor->base + CMD); | |
271 | ||
272 | ret = empty_fifo(chip, 1); | |
273 | if (ret) { | |
e659a3fe | 274 | dev_err(chip->dev, "Timeout while clearing FIFO\n"); |
ebb81fdb MS |
275 | return -EIO; |
276 | } | |
277 | ||
278 | ret = wait(chip, STAT_XFE); | |
279 | if (ret) | |
280 | return -EIO; | |
281 | ||
282 | count_4 = (count & 0xff000000) >> 24; | |
283 | count_3 = (count & 0x00ff0000) >> 16; | |
284 | count_2 = (count & 0x0000ff00) >> 8; | |
285 | count_1 = (count & 0x000000ff); | |
286 | count_high = ((count + 6) & 0xffffff00) >> 8; | |
287 | count_low = ((count + 6) & 0x000000ff); | |
288 | ||
289 | /* Sending Header */ | |
290 | wait_and_send(chip, TPM_VL_VER); | |
291 | wait_and_send(chip, TPM_CTRL_DATA); | |
292 | wait_and_send(chip, count_high); | |
293 | wait_and_send(chip, count_low); | |
294 | ||
295 | /* Sending Data Header */ | |
296 | wait_and_send(chip, TPM_VL_VER); | |
297 | wait_and_send(chip, TPM_VL_CHANNEL_TPM); | |
298 | wait_and_send(chip, count_4); | |
299 | wait_and_send(chip, count_3); | |
300 | wait_and_send(chip, count_2); | |
301 | wait_and_send(chip, count_1); | |
302 | ||
303 | /* Sending Data */ | |
304 | for (i = 0; i < count; i++) { | |
305 | wait_and_send(chip, buf[i]); | |
306 | } | |
307 | return count; | |
308 | } | |
309 | ||
310 | static void tpm_inf_cancel(struct tpm_chip *chip) | |
311 | { | |
f9abb020 MS |
312 | /* |
313 | Since we are using the legacy mode to communicate | |
314 | with the TPM, we have no cancel functions, but have | |
315 | a workaround for interrupting the TPM through WTX. | |
ebb81fdb MS |
316 | */ |
317 | } | |
318 | ||
b4ed3e3c KJH |
319 | static u8 tpm_inf_status(struct tpm_chip *chip) |
320 | { | |
321 | return inb(chip->vendor->base + 1); | |
322 | } | |
323 | ||
ebb81fdb MS |
324 | static DEVICE_ATTR(pubek, S_IRUGO, tpm_show_pubek, NULL); |
325 | static DEVICE_ATTR(pcrs, S_IRUGO, tpm_show_pcrs, NULL); | |
326 | static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL); | |
327 | static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel); | |
328 | ||
329 | static struct attribute *inf_attrs[] = { | |
330 | &dev_attr_pubek.attr, | |
331 | &dev_attr_pcrs.attr, | |
332 | &dev_attr_caps.attr, | |
333 | &dev_attr_cancel.attr, | |
334 | NULL, | |
335 | }; | |
336 | ||
337 | static struct attribute_group inf_attr_grp = {.attrs = inf_attrs }; | |
338 | ||
339 | static struct file_operations inf_ops = { | |
340 | .owner = THIS_MODULE, | |
341 | .llseek = no_llseek, | |
342 | .open = tpm_open, | |
343 | .read = tpm_read, | |
344 | .write = tpm_write, | |
345 | .release = tpm_release, | |
346 | }; | |
347 | ||
348 | static struct tpm_vendor_specific tpm_inf = { | |
349 | .recv = tpm_inf_recv, | |
350 | .send = tpm_inf_send, | |
351 | .cancel = tpm_inf_cancel, | |
b4ed3e3c | 352 | .status = tpm_inf_status, |
ebb81fdb MS |
353 | .req_complete_mask = 0, |
354 | .req_complete_val = 0, | |
355 | .attr_group = &inf_attr_grp, | |
356 | .miscdev = {.fops = &inf_ops,}, | |
357 | }; | |
358 | ||
f9abb020 MS |
359 | static const struct pnp_device_id tpm_pnp_tbl[] = { |
360 | /* Infineon TPMs */ | |
361 | {"IFX0101", 0}, | |
362 | {"IFX0102", 0}, | |
363 | {"", 0} | |
364 | }; | |
e8a65015 | 365 | MODULE_DEVICE_TABLE(pnp, tpm_pnp_tbl); |
f9abb020 | 366 | |
e8a65015 | 367 | static int __devinit tpm_inf_pnp_probe(struct pnp_dev *dev, |
f9abb020 MS |
368 | const struct pnp_device_id *dev_id) |
369 | { | |
e8a65015 MS |
370 | if (pnp_port_valid(dev, 0)) { |
371 | TPM_INF_ADDR = (pnp_port_start(dev, 0) & 0xff); | |
372 | TPM_INF_DATA = ((TPM_INF_ADDR + 1) & 0xff); | |
373 | tpm_inf.base = pnp_port_start(dev, 1); | |
374 | dev_info(&dev->dev, "Found %s with ID %s\n", | |
375 | dev->name, dev_id->id); | |
376 | return 0; | |
377 | } | |
378 | return -ENODEV; | |
f9abb020 MS |
379 | } |
380 | ||
381 | static struct pnp_driver tpm_inf_pnp = { | |
382 | .name = "tpm_inf_pnp", | |
383 | .id_table = tpm_pnp_tbl, | |
e8a65015 | 384 | .probe = tpm_inf_pnp_probe, |
f9abb020 MS |
385 | }; |
386 | ||
ebb81fdb MS |
387 | static int __devinit tpm_inf_probe(struct pci_dev *pci_dev, |
388 | const struct pci_device_id *pci_id) | |
389 | { | |
390 | int rc = 0; | |
391 | u8 iol, ioh; | |
392 | int vendorid[2]; | |
393 | int version[2]; | |
394 | int productid[2]; | |
f9abb020 | 395 | char chipname[20]; |
ebb81fdb | 396 | |
e8a65015 MS |
397 | rc = pci_enable_device(pci_dev); |
398 | if (rc) | |
399 | return rc; | |
ebb81fdb MS |
400 | |
401 | dev_info(&pci_dev->dev, "LPC-bus found at 0x%x\n", pci_id->device); | |
402 | ||
e8a65015 MS |
403 | /* read IO-ports from PnP */ |
404 | rc = pnp_register_driver(&tpm_inf_pnp); | |
405 | if (rc < 0) { | |
406 | dev_err(&pci_dev->dev, | |
407 | "Error %x from pnp_register_driver!\n",rc); | |
408 | goto error2; | |
409 | } | |
410 | if (!rc) { | |
411 | dev_info(&pci_dev->dev, "No Infineon TPM found!\n"); | |
412 | goto error; | |
413 | } else { | |
414 | pnp_registered = 1; | |
415 | } | |
f9abb020 MS |
416 | |
417 | /* Make sure, we have received valid config ports */ | |
418 | if (!TPM_INF_ADDR) { | |
e8a65015 MS |
419 | dev_err(&pci_dev->dev, "No valid IO-ports received!\n"); |
420 | goto error; | |
f9abb020 MS |
421 | } |
422 | ||
ebb81fdb | 423 | /* query chip for its vendor, its version number a.s.o. */ |
f9abb020 MS |
424 | outb(ENABLE_REGISTER_PAIR, TPM_INF_ADDR); |
425 | outb(IDVENL, TPM_INF_ADDR); | |
426 | vendorid[1] = inb(TPM_INF_DATA); | |
427 | outb(IDVENH, TPM_INF_ADDR); | |
428 | vendorid[0] = inb(TPM_INF_DATA); | |
429 | outb(IDPDL, TPM_INF_ADDR); | |
430 | productid[1] = inb(TPM_INF_DATA); | |
431 | outb(IDPDH, TPM_INF_ADDR); | |
432 | productid[0] = inb(TPM_INF_DATA); | |
433 | outb(CHIP_ID1, TPM_INF_ADDR); | |
434 | version[1] = inb(TPM_INF_DATA); | |
435 | outb(CHIP_ID2, TPM_INF_ADDR); | |
436 | version[0] = inb(TPM_INF_DATA); | |
437 | ||
438 | switch ((productid[0] << 8) | productid[1]) { | |
439 | case 6: | |
e8a65015 | 440 | snprintf(chipname, sizeof(chipname), " (SLD 9630 TT 1.1)"); |
f9abb020 MS |
441 | break; |
442 | case 11: | |
e8a65015 | 443 | snprintf(chipname, sizeof(chipname), " (SLB 9635 TT 1.2)"); |
f9abb020 MS |
444 | break; |
445 | default: | |
e8a65015 | 446 | snprintf(chipname, sizeof(chipname), " (unknown chip)"); |
f9abb020 MS |
447 | break; |
448 | } | |
f9abb020 MS |
449 | |
450 | if ((vendorid[0] << 8 | vendorid[1]) == (TPM_INFINEON_DEV_VEN_VALUE)) { | |
ebb81fdb MS |
451 | |
452 | if (tpm_inf.base == 0) { | |
f9abb020 | 453 | dev_err(&pci_dev->dev, "No IO-ports found!\n"); |
e8a65015 | 454 | goto error; |
f9abb020 MS |
455 | } |
456 | /* configure TPM with IO-ports */ | |
457 | outb(IOLIMH, TPM_INF_ADDR); | |
458 | outb(((tpm_inf.base >> 8) & 0xff), TPM_INF_DATA); | |
459 | outb(IOLIML, TPM_INF_ADDR); | |
460 | outb((tpm_inf.base & 0xff), TPM_INF_DATA); | |
461 | ||
462 | /* control if IO-ports are set correctly */ | |
463 | outb(IOLIMH, TPM_INF_ADDR); | |
464 | ioh = inb(TPM_INF_DATA); | |
465 | outb(IOLIML, TPM_INF_ADDR); | |
466 | iol = inb(TPM_INF_DATA); | |
467 | ||
468 | if ((ioh << 8 | iol) != tpm_inf.base) { | |
469 | dev_err(&pci_dev->dev, | |
470 | "Could not set IO-ports to %04x\n", | |
471 | tpm_inf.base); | |
e8a65015 | 472 | goto error; |
ebb81fdb MS |
473 | } |
474 | ||
475 | /* activate register */ | |
f9abb020 MS |
476 | outb(TPM_DAR, TPM_INF_ADDR); |
477 | outb(0x01, TPM_INF_DATA); | |
478 | outb(DISABLE_REGISTER_PAIR, TPM_INF_ADDR); | |
ebb81fdb MS |
479 | |
480 | /* disable RESET, LP and IRQC */ | |
481 | outb(RESET_LP_IRQC_DISABLE, tpm_inf.base + CMD); | |
482 | ||
483 | /* Finally, we're done, print some infos */ | |
484 | dev_info(&pci_dev->dev, "TPM found: " | |
f9abb020 | 485 | "config base 0x%x, " |
ebb81fdb MS |
486 | "io base 0x%x, " |
487 | "chip version %02x%02x, " | |
488 | "vendor id %x%x (Infineon), " | |
489 | "product id %02x%02x" | |
490 | "%s\n", | |
f9abb020 | 491 | TPM_INF_ADDR, |
ebb81fdb MS |
492 | tpm_inf.base, |
493 | version[0], version[1], | |
494 | vendorid[0], vendorid[1], | |
f9abb020 | 495 | productid[0], productid[1], chipname); |
ebb81fdb | 496 | |
e659a3fe | 497 | rc = tpm_register_hardware(&pci_dev->dev, &tpm_inf); |
e8a65015 MS |
498 | if (rc < 0) |
499 | goto error; | |
ebb81fdb MS |
500 | return 0; |
501 | } else { | |
502 | dev_info(&pci_dev->dev, "No Infineon TPM found!\n"); | |
e8a65015 MS |
503 | error: |
504 | pnp_unregister_driver(&tpm_inf_pnp); | |
505 | error2: | |
ebb81fdb | 506 | pci_disable_device(pci_dev); |
e8a65015 | 507 | pnp_registered = 0; |
ebb81fdb MS |
508 | return -ENODEV; |
509 | } | |
510 | } | |
511 | ||
e659a3fe KJH |
512 | static __devexit void tpm_inf_remove(struct pci_dev* pci_dev) |
513 | { | |
514 | struct tpm_chip* chip = pci_get_drvdata(pci_dev); | |
515 | ||
516 | if( chip ) | |
517 | tpm_remove_hardware(chip->dev); | |
518 | } | |
519 | ||
ebb81fdb MS |
520 | static struct pci_device_id tpm_pci_tbl[] __devinitdata = { |
521 | {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0)}, | |
522 | {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12)}, | |
523 | {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0)}, | |
524 | {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12)}, | |
525 | {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0)}, | |
526 | {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0)}, | |
527 | {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1)}, | |
528 | {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_2)}, | |
529 | {0,} | |
530 | }; | |
531 | ||
532 | MODULE_DEVICE_TABLE(pci, tpm_pci_tbl); | |
533 | ||
534 | static struct pci_driver inf_pci_driver = { | |
535 | .name = "tpm_inf", | |
536 | .id_table = tpm_pci_tbl, | |
537 | .probe = tpm_inf_probe, | |
e659a3fe | 538 | .remove = __devexit_p(tpm_inf_remove), |
ebb81fdb MS |
539 | .suspend = tpm_pm_suspend, |
540 | .resume = tpm_pm_resume, | |
541 | }; | |
542 | ||
543 | static int __init init_inf(void) | |
544 | { | |
545 | return pci_register_driver(&inf_pci_driver); | |
546 | } | |
547 | ||
548 | static void __exit cleanup_inf(void) | |
549 | { | |
e8a65015 MS |
550 | if (pnp_registered) |
551 | pnp_unregister_driver(&tpm_inf_pnp); | |
ebb81fdb MS |
552 | pci_unregister_driver(&inf_pci_driver); |
553 | } | |
554 | ||
555 | module_init(init_inf); | |
556 | module_exit(cleanup_inf); | |
557 | ||
558 | MODULE_AUTHOR("Marcel Selhorst <selhorst@crypto.rub.de>"); | |
f9abb020 MS |
559 | MODULE_DESCRIPTION("Driver for Infineon TPM SLD 9630 TT 1.1 / SLB 9635 TT 1.2"); |
560 | MODULE_VERSION("1.5"); | |
ebb81fdb | 561 | MODULE_LICENSE("GPL"); |