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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] Remove native tpm drivers from the linux sparse tree and replace
# HG changeset patch
# User kaf24@xxxxxxxxxxxxxxxxxxxx
# Node ID 03b58a6f498e858b3b96ebaba2e4293e445b4c51
# Parent 8ff691d008f449d582e8f06faa446905fd456984
Remove native tpm drivers from the linux sparse tree and replace
with minimal patch in the automatically-applied patches/ directory.
Signed-off-by: Stefan Berger <stefanb@xxxxxxxxxx>
diff -r 8ff691d008f4 -r 03b58a6f498e patches/linux-2.6.12/tpm_partial_read.patch
--- /dev/null Fri Sep 16 23:55:50 2005
+++ b/patches/linux-2.6.12/tpm_partial_read.patch Sat Sep 17 08:25:30 2005
@@ -0,0 +1,74 @@
+--- ref-linux-2.6.12/drivers/char/tpm/tpm.c 2005-06-17 15:48:29.000000000
-0400
++++ linux-2.6-xen-sparse/drivers/char/tpm/tpm.c 2005-09-15
14:56:05.000000000 -0400
+@@ -473,6 +401,7 @@ ssize_t tpm_write(struct file * file, co
+ out_size = tpm_transmit(chip, chip->data_buffer, TPM_BUFSIZE);
+
+ atomic_set(&chip->data_pending, out_size);
++ atomic_set(&chip->data_position, 0);
+ up(&chip->buffer_mutex);
+
+ /* Set a timeout by which the reader must come claim the result */
+@@ -494,29 +423,34 @@ ssize_t tpm_read(struct file * file, cha
+ {
+ struct tpm_chip *chip = file->private_data;
+ int ret_size = -ENODATA;
++ int pos, pending = 0;
+
+- if (atomic_read(&chip->data_pending) != 0) { /* Result available */
++ down(&chip->buffer_mutex);
++ ret_size = atomic_read(&chip->data_pending);
++ if ( ret_size > 0 ) { /* Result available */
++ if (size < ret_size)
++ ret_size = size;
++
++ pos = atomic_read(&chip->data_position);
++
++ if (copy_to_user((void __user *) buf,
++ &chip->data_buffer[pos], ret_size)) {
++ ret_size = -EFAULT;
++ } else {
++ pending = atomic_read(&chip->data_pending) - ret_size;
++ if ( pending ) {
++ atomic_set( &chip->data_pending, pending );
++ atomic_set( &chip->data_position, pos+ret_size
);
++ }
++ }
++ }
++ up(&chip->buffer_mutex);
++
++ if ( ret_size <= 0 || pending == 0 ) {
++ atomic_set( &chip->data_pending, 0 );
+ down(&chip->timer_manipulation_mutex);
+ del_singleshot_timer_sync(&chip->user_read_timer);
+ up(&chip->timer_manipulation_mutex);
+-
+- down(&chip->buffer_mutex);
+-
+- ret_size = atomic_read(&chip->data_pending);
+- atomic_set(&chip->data_pending, 0);
+-
+- if (ret_size == 0) /* timeout just occurred */
+- ret_size = -ETIME;
+- else if (ret_size > 0) { /* relay data */
+- if (size < ret_size)
+- ret_size = size;
+-
+- if (copy_to_user((void __user *) buf,
+- chip->data_buffer, ret_size)) {
+- ret_size = -EFAULT;
+- }
+- }
+- up(&chip->buffer_mutex);
+ }
+
+ return ret_size;
+--- ref-linux-2.6.12/drivers/char/tpm/tpm.h 2005-06-17 15:48:29.000000000
-0400
++++ linux-2.6-xen-sparse/drivers/char/tpm/tpm.h 2005-09-15
14:56:05.000000000 -0400
+@@ -54,6 +54,7 @@ struct tpm_chip {
+ /* Data passed to and from the tpm via the read/write calls */
+ u8 *data_buffer;
+ atomic_t data_pending;
++ atomic_t data_position;
+ struct semaphore buffer_mutex;
+
+ struct timer_list user_read_timer; /* user needs to claim result */
diff -r 8ff691d008f4 -r 03b58a6f498e linux-2.6-xen-sparse/drivers/char/tpm/tpm.c
--- a/linux-2.6-xen-sparse/drivers/char/tpm/tpm.c Fri Sep 16 23:55:50 2005
+++ /dev/null Sat Sep 17 08:25:30 2005
@@ -1,627 +0,0 @@
-/*
- * Copyright (C) 2004 IBM Corporation
- *
- * Authors:
- * Leendert van Doorn <leendert@xxxxxxxxxxxxxx>
- * Dave Safford <safford@xxxxxxxxxxxxxx>
- * Reiner Sailer <sailer@xxxxxxxxxxxxxx>
- * Kylene Hall <kjhall@xxxxxxxxxx>
- *
- * Maintained by: <tpmdd_devel@xxxxxxxxxxxxxxxxxxxxx>
- *
- * Device driver for TCG/TCPA TPM (trusted platform module).
- * Specifications at www.trustedcomputinggroup.org
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation, version 2 of the
- * License.
- *
- * Note, the TPM chip is not interrupt driven (only polling)
- * and can have very long timeouts (minutes!). Hence the unusual
- * calls to schedule_timeout.
- *
- */
-
-#include <linux/sched.h>
-#include <linux/poll.h>
-#include <linux/spinlock.h>
-#include "tpm.h"
-
-#define TPM_MINOR 224 /* officially assigned
*/
-
-#define TPM_BUFSIZE 2048
-
-static LIST_HEAD(tpm_chip_list);
-static DEFINE_SPINLOCK(driver_lock);
-static int dev_mask[32];
-
-static void user_reader_timeout(unsigned long ptr)
-{
- struct tpm_chip *chip = (struct tpm_chip *) ptr;
-
- down(&chip->buffer_mutex);
- atomic_set(&chip->data_pending, 0);
- memset(chip->data_buffer, 0, TPM_BUFSIZE);
- up(&chip->buffer_mutex);
-}
-
-void tpm_time_expired(unsigned long ptr)
-{
- int *exp = (int *) ptr;
- *exp = 1;
-}
-
-EXPORT_SYMBOL_GPL(tpm_time_expired);
-
-/*
- * Internal kernel interface to transmit TPM commands
- */
-static ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf,
- size_t bufsiz)
-{
- ssize_t len;
- u32 count;
- __be32 *native_size;
-
- native_size = (__force __be32 *) (buf + 2);
- count = be32_to_cpu(*native_size);
-
- if (count == 0)
- return -ENODATA;
- if (count > bufsiz) {
- dev_err(&chip->pci_dev->dev,
- "invalid count value %x %zx \n", count, bufsiz);
- return -E2BIG;
- }
-
- down(&chip->tpm_mutex);
-
- if ((len = chip->vendor->send(chip, (u8 *) buf, count)) < 0) {
- dev_err(&chip->pci_dev->dev,
- "tpm_transmit: tpm_send: error %zd\n", len);
- return len;
- }
-
- down(&chip->timer_manipulation_mutex);
- chip->time_expired = 0;
- init_timer(&chip->device_timer);
- chip->device_timer.function = tpm_time_expired;
- chip->device_timer.expires = jiffies + 2 * 60 * HZ;
- chip->device_timer.data = (unsigned long) &chip->time_expired;
- add_timer(&chip->device_timer);
- up(&chip->timer_manipulation_mutex);
-
- do {
- u8 status = inb(chip->vendor->base + 1);
- if ((status & chip->vendor->req_complete_mask) ==
- chip->vendor->req_complete_val) {
- down(&chip->timer_manipulation_mutex);
- del_singleshot_timer_sync(&chip->device_timer);
- up(&chip->timer_manipulation_mutex);
- goto out_recv;
- }
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(TPM_TIMEOUT);
- rmb();
- } while (!chip->time_expired);
-
-
- chip->vendor->cancel(chip);
- dev_err(&chip->pci_dev->dev, "Time expired\n");
- up(&chip->tpm_mutex);
- return -EIO;
-
-out_recv:
- len = chip->vendor->recv(chip, (u8 *) buf, bufsiz);
- if (len < 0)
- dev_err(&chip->pci_dev->dev,
- "tpm_transmit: tpm_recv: error %zd\n", len);
- up(&chip->tpm_mutex);
- return len;
-}
-
-#define TPM_DIGEST_SIZE 20
-#define CAP_PCR_RESULT_SIZE 18
-static u8 cap_pcr[] = {
- 0, 193, /* TPM_TAG_RQU_COMMAND */
- 0, 0, 0, 22, /* length */
- 0, 0, 0, 101, /* TPM_ORD_GetCapability */
- 0, 0, 0, 5,
- 0, 0, 0, 4,
- 0, 0, 1, 1
-};
-
-#define READ_PCR_RESULT_SIZE 30
-static u8 pcrread[] = {
- 0, 193, /* TPM_TAG_RQU_COMMAND */
- 0, 0, 0, 14, /* length */
- 0, 0, 0, 21, /* TPM_ORD_PcrRead */
- 0, 0, 0, 0 /* PCR index */
-};
-
-static ssize_t show_pcrs(struct device *dev, char *buf)
-{
- u8 data[READ_PCR_RESULT_SIZE];
- ssize_t len;
- int i, j, index, num_pcrs;
- char *str = buf;
-
- struct tpm_chip *chip =
- pci_get_drvdata(container_of(dev, struct pci_dev, dev));
- if (chip == NULL)
- return -ENODEV;
-
- memcpy(data, cap_pcr, sizeof(cap_pcr));
- if ((len = tpm_transmit(chip, data, sizeof(data)))
- < CAP_PCR_RESULT_SIZE)
- return len;
-
- num_pcrs = be32_to_cpu(*((__force __be32 *) (data + 14)));
-
- for (i = 0; i < num_pcrs; i++) {
- memcpy(data, pcrread, sizeof(pcrread));
- index = cpu_to_be32(i);
- memcpy(data + 10, &index, 4);
- if ((len = tpm_transmit(chip, data, sizeof(data)))
- < READ_PCR_RESULT_SIZE)
- return len;
- str += sprintf(str, "PCR-%02d: ", i);
- for (j = 0; j < TPM_DIGEST_SIZE; j++)
- str += sprintf(str, "%02X ", *(data + 10 + j));
- str += sprintf(str, "\n");
- }
- return str - buf;
-}
-
-static DEVICE_ATTR(pcrs, S_IRUGO, show_pcrs, NULL);
-
-#define READ_PUBEK_RESULT_SIZE 314
-static u8 readpubek[] = {
- 0, 193, /* TPM_TAG_RQU_COMMAND */
- 0, 0, 0, 30, /* length */
- 0, 0, 0, 124, /* TPM_ORD_ReadPubek */
-};
-
-static ssize_t show_pubek(struct device *dev, char *buf)
-{
- u8 data[READ_PUBEK_RESULT_SIZE];
- ssize_t len;
- __be32 *native_val;
- int i;
- char *str = buf;
-
- struct tpm_chip *chip =
- pci_get_drvdata(container_of(dev, struct pci_dev, dev));
- if (chip == NULL)
- return -ENODEV;
-
- memcpy(data, readpubek, sizeof(readpubek));
- memset(data + sizeof(readpubek), 0, 20); /* zero nonce */
-
- if ((len = tpm_transmit(chip, data, sizeof(data))) <
- READ_PUBEK_RESULT_SIZE)
- return len;
-
- /*
- ignore header 10 bytes
- algorithm 32 bits (1 == RSA )
- encscheme 16 bits
- sigscheme 16 bits
- parameters (RSA 12->bytes: keybit, #primes, expbit)
- keylenbytes 32 bits
- 256 byte modulus
- ignore checksum 20 bytes
- */
-
- native_val = (__force __be32 *) (data + 34);
-
- str +=
- sprintf(str,
- "Algorithm: %02X %02X %02X %02X\nEncscheme: %02X %02X\n"
- "Sigscheme: %02X %02X\nParameters: %02X %02X %02X %02X"
- " %02X %02X %02X %02X %02X %02X %02X %02X\n"
- "Modulus length: %d\nModulus: \n",
- data[10], data[11], data[12], data[13], data[14],
- data[15], data[16], data[17], data[22], data[23],
- data[24], data[25], data[26], data[27], data[28],
- data[29], data[30], data[31], data[32], data[33],
- be32_to_cpu(*native_val)
- );
-
- for (i = 0; i < 256; i++) {
- str += sprintf(str, "%02X ", data[i + 39]);
- if ((i + 1) % 16 == 0)
- str += sprintf(str, "\n");
- }
- return str - buf;
-}
-
-static DEVICE_ATTR(pubek, S_IRUGO, show_pubek, NULL);
-
-#define CAP_VER_RESULT_SIZE 18
-static u8 cap_version[] = {
- 0, 193, /* TPM_TAG_RQU_COMMAND */
- 0, 0, 0, 18, /* length */
- 0, 0, 0, 101, /* TPM_ORD_GetCapability */
- 0, 0, 0, 6,
- 0, 0, 0, 0
-};
-
-#define CAP_MANUFACTURER_RESULT_SIZE 18
-static u8 cap_manufacturer[] = {
- 0, 193, /* TPM_TAG_RQU_COMMAND */
- 0, 0, 0, 22, /* length */
- 0, 0, 0, 101, /* TPM_ORD_GetCapability */
- 0, 0, 0, 5,
- 0, 0, 0, 4,
- 0, 0, 1, 3
-};
-
-static ssize_t show_caps(struct device *dev, char *buf)
-{
- u8 data[READ_PUBEK_RESULT_SIZE];
- ssize_t len;
- char *str = buf;
-
- struct tpm_chip *chip =
- pci_get_drvdata(container_of(dev, struct pci_dev, dev));
- if (chip == NULL)
- return -ENODEV;
-
- memcpy(data, cap_manufacturer, sizeof(cap_manufacturer));
-
- if ((len = tpm_transmit(chip, data, sizeof(data))) <
- CAP_MANUFACTURER_RESULT_SIZE)
- return len;
-
- str += sprintf(str, "Manufacturer: 0x%x\n",
- be32_to_cpu(*(data + 14)));
-
- memcpy(data, cap_version, sizeof(cap_version));
-
- if ((len = tpm_transmit(chip, data, sizeof(data))) <
- CAP_VER_RESULT_SIZE)
- return len;
-
- str +=
- sprintf(str, "TCG version: %d.%d\nFirmware version: %d.%d\n",
- (int) data[14], (int) data[15], (int) data[16],
- (int) data[17]);
-
- return str - buf;
-}
-
-static DEVICE_ATTR(caps, S_IRUGO, show_caps, NULL);
-
-/*
- * Device file system interface to the TPM
- */
-int tpm_open(struct inode *inode, struct file *file)
-{
- int rc = 0, minor = iminor(inode);
- struct tpm_chip *chip = NULL, *pos;
-
- spin_lock(&driver_lock);
-
- list_for_each_entry(pos, &tpm_chip_list, list) {
- if (pos->vendor->miscdev.minor == minor) {
- chip = pos;
- break;
- }
- }
-
- if (chip == NULL) {
- rc = -ENODEV;
- goto err_out;
- }
-
- if (chip->num_opens) {
- dev_dbg(&chip->pci_dev->dev,
- "Another process owns this TPM\n");
- rc = -EBUSY;
- goto err_out;
- }
-
- chip->num_opens++;
- pci_dev_get(chip->pci_dev);
-
- spin_unlock(&driver_lock);
-
- chip->data_buffer = kmalloc(TPM_BUFSIZE * sizeof(u8), GFP_KERNEL);
- if (chip->data_buffer == NULL) {
- chip->num_opens--;
- pci_dev_put(chip->pci_dev);
- return -ENOMEM;
- }
-
- atomic_set(&chip->data_pending, 0);
-
- file->private_data = chip;
- return 0;
-
-err_out:
- spin_unlock(&driver_lock);
- return rc;
-}
-
-EXPORT_SYMBOL_GPL(tpm_open);
-
-int tpm_release(struct inode *inode, struct file *file)
-{
- struct tpm_chip *chip = file->private_data;
-
- file->private_data = NULL;
-
- spin_lock(&driver_lock);
- chip->num_opens--;
- spin_unlock(&driver_lock);
-
- down(&chip->timer_manipulation_mutex);
- if (timer_pending(&chip->user_read_timer))
- del_singleshot_timer_sync(&chip->user_read_timer);
- else if (timer_pending(&chip->device_timer))
- del_singleshot_timer_sync(&chip->device_timer);
- up(&chip->timer_manipulation_mutex);
-
- kfree(chip->data_buffer);
- atomic_set(&chip->data_pending, 0);
-
- pci_dev_put(chip->pci_dev);
- return 0;
-}
-
-EXPORT_SYMBOL_GPL(tpm_release);
-
-ssize_t tpm_write(struct file * file, const char __user * buf,
- size_t size, loff_t * off)
-{
- struct tpm_chip *chip = file->private_data;
- int in_size = size, out_size;
-
- /* cannot perform a write until the read has cleared
- either via tpm_read or a user_read_timer timeout */
- while (atomic_read(&chip->data_pending) != 0) {
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(TPM_TIMEOUT);
- }
-
- down(&chip->buffer_mutex);
-
- if (in_size > TPM_BUFSIZE)
- in_size = TPM_BUFSIZE;
-
- if (copy_from_user
- (chip->data_buffer, (void __user *) buf, in_size)) {
- up(&chip->buffer_mutex);
- return -EFAULT;
- }
-
- /* atomic tpm command send and result receive */
- out_size = tpm_transmit(chip, chip->data_buffer, TPM_BUFSIZE);
-
- atomic_set(&chip->data_pending, out_size);
- atomic_set(&chip->data_position, 0);
- up(&chip->buffer_mutex);
-
- /* Set a timeout by which the reader must come claim the result */
- down(&chip->timer_manipulation_mutex);
- init_timer(&chip->user_read_timer);
- chip->user_read_timer.function = user_reader_timeout;
- chip->user_read_timer.data = (unsigned long) chip;
- chip->user_read_timer.expires = jiffies + (60 * HZ);
- add_timer(&chip->user_read_timer);
- up(&chip->timer_manipulation_mutex);
-
- return in_size;
-}
-
-EXPORT_SYMBOL_GPL(tpm_write);
-
-ssize_t tpm_read(struct file * file, char __user * buf,
- size_t size, loff_t * off)
-{
- struct tpm_chip *chip = file->private_data;
- int ret_size = -ENODATA;
- int pos, pending = 0;
-
- down(&chip->buffer_mutex);
- ret_size = atomic_read(&chip->data_pending);
- if ( ret_size > 0 ) { /* Result available */
- if (size < ret_size)
- ret_size = size;
-
- pos = atomic_read(&chip->data_position);
-
- if (copy_to_user((void __user *) buf,
- &chip->data_buffer[pos], ret_size)) {
- ret_size = -EFAULT;
- } else {
- pending = atomic_read(&chip->data_pending) - ret_size;
- if ( pending ) {
- atomic_set( &chip->data_pending, pending );
- atomic_set( &chip->data_position, pos+ret_size
);
- }
- }
- }
- up(&chip->buffer_mutex);
-
- if ( ret_size <= 0 || pending == 0 ) {
- atomic_set( &chip->data_pending, 0 );
- down(&chip->timer_manipulation_mutex);
- del_singleshot_timer_sync(&chip->user_read_timer);
- up(&chip->timer_manipulation_mutex);
- }
-
- return ret_size;
-}
-
-EXPORT_SYMBOL_GPL(tpm_read);
-
-void __devexit tpm_remove(struct pci_dev *pci_dev)
-{
- struct tpm_chip *chip = pci_get_drvdata(pci_dev);
-
- if (chip == NULL) {
- dev_err(&pci_dev->dev, "No device data found\n");
- return;
- }
-
- spin_lock(&driver_lock);
-
- list_del(&chip->list);
-
- spin_unlock(&driver_lock);
-
- pci_set_drvdata(pci_dev, NULL);
- misc_deregister(&chip->vendor->miscdev);
-
- device_remove_file(&pci_dev->dev, &dev_attr_pubek);
- device_remove_file(&pci_dev->dev, &dev_attr_pcrs);
- device_remove_file(&pci_dev->dev, &dev_attr_caps);
-
- pci_disable_device(pci_dev);
-
- dev_mask[chip->dev_num / 32] &= !(1 << (chip->dev_num % 32));
-
- kfree(chip);
-
- pci_dev_put(pci_dev);
-}
-
-EXPORT_SYMBOL_GPL(tpm_remove);
-
-static u8 savestate[] = {
- 0, 193, /* TPM_TAG_RQU_COMMAND */
- 0, 0, 0, 10, /* blob length (in bytes) */
- 0, 0, 0, 152 /* TPM_ORD_SaveState */
-};
-
-/*
- * We are about to suspend. Save the TPM state
- * so that it can be restored.
- */
-int tpm_pm_suspend(struct pci_dev *pci_dev, pm_message_t pm_state)
-{
- struct tpm_chip *chip = pci_get_drvdata(pci_dev);
- if (chip == NULL)
- return -ENODEV;
-
- tpm_transmit(chip, savestate, sizeof(savestate));
- return 0;
-}
-
-EXPORT_SYMBOL_GPL(tpm_pm_suspend);
-
-/*
- * Resume from a power safe. The BIOS already restored
- * the TPM state.
- */
-int tpm_pm_resume(struct pci_dev *pci_dev)
-{
- struct tpm_chip *chip = pci_get_drvdata(pci_dev);
-
- if (chip == NULL)
- return -ENODEV;
-
- return 0;
-}
-
-EXPORT_SYMBOL_GPL(tpm_pm_resume);
-
-/*
- * Called from tpm_<specific>.c probe function only for devices
- * the driver has determined it should claim. Prior to calling
- * this function the specific probe function has called pci_enable_device
- * upon errant exit from this function specific probe function should call
- * pci_disable_device
- */
-int tpm_register_hardware(struct pci_dev *pci_dev,
- struct tpm_vendor_specific *entry)
-{
- char devname[7];
- struct tpm_chip *chip;
- int i, j;
-
- /* Driver specific per-device data */
- chip = kmalloc(sizeof(*chip), GFP_KERNEL);
- if (chip == NULL)
- return -ENOMEM;
-
- memset(chip, 0, sizeof(struct tpm_chip));
-
- init_MUTEX(&chip->buffer_mutex);
- init_MUTEX(&chip->tpm_mutex);
- init_MUTEX(&chip->timer_manipulation_mutex);
- INIT_LIST_HEAD(&chip->list);
-
- chip->vendor = entry;
-
- chip->dev_num = -1;
-
- for (i = 0; i < 32; i++)
- for (j = 0; j < 8; j++)
- if ((dev_mask[i] & (1 << j)) == 0) {
- chip->dev_num = i * 32 + j;
- dev_mask[i] |= 1 << j;
- goto dev_num_search_complete;
- }
-
-dev_num_search_complete:
- if (chip->dev_num < 0) {
- dev_err(&pci_dev->dev,
- "No available tpm device numbers\n");
- kfree(chip);
- return -ENODEV;
- } else if (chip->dev_num == 0)
- chip->vendor->miscdev.minor = TPM_MINOR;
- else
- chip->vendor->miscdev.minor = MISC_DYNAMIC_MINOR;
-
- snprintf(devname, sizeof(devname), "%s%d", "tpm", chip->dev_num);
- chip->vendor->miscdev.name = devname;
-
- chip->vendor->miscdev.dev = &(pci_dev->dev);
- chip->pci_dev = pci_dev_get(pci_dev);
-
- if (misc_register(&chip->vendor->miscdev)) {
- dev_err(&chip->pci_dev->dev,
- "unable to misc_register %s, minor %d\n",
- chip->vendor->miscdev.name,
- chip->vendor->miscdev.minor);
- pci_dev_put(pci_dev);
- kfree(chip);
- dev_mask[i] &= !(1 << j);
- return -ENODEV;
- }
-
- pci_set_drvdata(pci_dev, chip);
-
- list_add(&chip->list, &tpm_chip_list);
-
- device_create_file(&pci_dev->dev, &dev_attr_pubek);
- device_create_file(&pci_dev->dev, &dev_attr_pcrs);
- device_create_file(&pci_dev->dev, &dev_attr_caps);
-
- return 0;
-}
-
-EXPORT_SYMBOL_GPL(tpm_register_hardware);
-
-static int __init init_tpm(void)
-{
- return 0;
-}
-
-static void __exit cleanup_tpm(void)
-{
-
-}
-
-module_init(init_tpm);
-module_exit(cleanup_tpm);
-
-MODULE_AUTHOR("Leendert van Doorn (leendert@xxxxxxxxxxxxxx)");
-MODULE_DESCRIPTION("TPM Driver");
-MODULE_VERSION("2.0");
-MODULE_LICENSE("GPL");
diff -r 8ff691d008f4 -r 03b58a6f498e linux-2.6-xen-sparse/drivers/char/tpm/tpm.h
--- a/linux-2.6-xen-sparse/drivers/char/tpm/tpm.h Fri Sep 16 23:55:50 2005
+++ /dev/null Sat Sep 17 08:25:30 2005
@@ -1,92 +0,0 @@
-/*
- * Copyright (C) 2004 IBM Corporation
- *
- * Authors:
- * Leendert van Doorn <leendert@xxxxxxxxxxxxxx>
- * Dave Safford <safford@xxxxxxxxxxxxxx>
- * Reiner Sailer <sailer@xxxxxxxxxxxxxx>
- * Kylene Hall <kjhall@xxxxxxxxxx>
- *
- * Maintained by: <tpmdd_devel@xxxxxxxxxxxxxxxxxxxxx>
- *
- * Device driver for TCG/TCPA TPM (trusted platform module).
- * Specifications at www.trustedcomputinggroup.org
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation, version 2 of the
- * License.
- *
- */
-#include <linux/module.h>
-#include <linux/version.h>
-#include <linux/pci.h>
-#include <linux/delay.h>
-#include <linux/fs.h>
-#include <linux/miscdevice.h>
-
-#define TPM_TIMEOUT msecs_to_jiffies(5)
-
-/* TPM addresses */
-#define TPM_ADDR 0x4E
-#define TPM_DATA 0x4F
-
-struct tpm_chip;
-
-struct tpm_vendor_specific {
- u8 req_complete_mask;
- u8 req_complete_val;
- u16 base; /* TPM base address */
-
- int (*recv) (struct tpm_chip *, u8 *, size_t);
- int (*send) (struct tpm_chip *, u8 *, size_t);
- void (*cancel) (struct tpm_chip *);
- struct miscdevice miscdev;
-};
-
-struct tpm_chip {
- struct pci_dev *pci_dev; /* PCI device stuff */
-
- int dev_num; /* /dev/tpm# */
- int num_opens; /* only one allowed */
- int time_expired;
-
- /* Data passed to and from the tpm via the read/write calls */
- u8 *data_buffer;
- atomic_t data_pending;
- atomic_t data_position;
- struct semaphore buffer_mutex;
-
- struct timer_list user_read_timer; /* user needs to claim result */
- struct semaphore tpm_mutex; /* tpm is processing */
- struct timer_list device_timer; /* tpm is processing */
- struct semaphore timer_manipulation_mutex;
-
- struct tpm_vendor_specific *vendor;
-
- struct list_head list;
-};
-
-static inline int tpm_read_index(int index)
-{
- outb(index, TPM_ADDR);
- return inb(TPM_DATA) & 0xFF;
-}
-
-static inline void tpm_write_index(int index, int value)
-{
- outb(index, TPM_ADDR);
- outb(value & 0xFF, TPM_DATA);
-}
-
-extern void tpm_time_expired(unsigned long);
-extern int tpm_register_hardware(struct pci_dev *,
- struct tpm_vendor_specific *);
-extern int tpm_open(struct inode *, struct file *);
-extern int tpm_release(struct inode *, struct file *);
-extern ssize_t tpm_write(struct file *, const char __user *, size_t,
- loff_t *);
-extern ssize_t tpm_read(struct file *, char __user *, size_t, loff_t *);
-extern void __devexit tpm_remove(struct pci_dev *);
-extern int tpm_pm_suspend(struct pci_dev *, pm_message_t);
-extern int tpm_pm_resume(struct pci_dev *);
diff -r 8ff691d008f4 -r 03b58a6f498e
linux-2.6-xen-sparse/drivers/char/tpm/tpm_atmel.c
--- a/linux-2.6-xen-sparse/drivers/char/tpm/tpm_atmel.c Fri Sep 16 23:55:50 2005
+++ /dev/null Sat Sep 17 08:25:30 2005
@@ -1,220 +0,0 @@
-/*
- * Copyright (C) 2004 IBM Corporation
- *
- * Authors:
- * Leendert van Doorn <leendert@xxxxxxxxxxxxxx>
- * Dave Safford <safford@xxxxxxxxxxxxxx>
- * Reiner Sailer <sailer@xxxxxxxxxxxxxx>
- * Kylene Hall <kjhall@xxxxxxxxxx>
- *
- * Maintained by: <tpmdd_devel@xxxxxxxxxxxxxxxxxxxxx>
- *
- * Device driver for TCG/TCPA TPM (trusted platform module).
- * Specifications at www.trustedcomputinggroup.org
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation, version 2 of the
- * License.
- *
- */
-
-#include "tpm.h"
-
-/* Atmel definitions */
-enum tpm_atmel_addr {
- TPM_ATMEL_BASE_ADDR_LO = 0x08,
- TPM_ATMEL_BASE_ADDR_HI = 0x09
-};
-
-/* write status bits */
-#define ATML_STATUS_ABORT 0x01
-#define ATML_STATUS_LASTBYTE 0x04
-
-/* read status bits */
-#define ATML_STATUS_BUSY 0x01
-#define ATML_STATUS_DATA_AVAIL 0x02
-#define ATML_STATUS_REWRITE 0x04
-
-
-static int tpm_atml_recv(struct tpm_chip *chip, u8 * buf, size_t count)
-{
- u8 status, *hdr = buf;
- u32 size;
- int i;
- __be32 *native_size;
-
- /* start reading header */
- if (count < 6)
- return -EIO;
-
- for (i = 0; i < 6; i++) {
- status = inb(chip->vendor->base + 1);
- if ((status & ATML_STATUS_DATA_AVAIL) == 0) {
- dev_err(&chip->pci_dev->dev,
- "error reading header\n");
- return -EIO;
- }
- *buf++ = inb(chip->vendor->base);
- }
-
- /* size of the data received */
- native_size = (__force __be32 *) (hdr + 2);
- size = be32_to_cpu(*native_size);
-
- if (count < size) {
- dev_err(&chip->pci_dev->dev,
- "Recv size(%d) less than available space\n", size);
- for (; i < size; i++) { /* clear the waiting data anyway */
- status = inb(chip->vendor->base + 1);
- if ((status & ATML_STATUS_DATA_AVAIL) == 0) {
- dev_err(&chip->pci_dev->dev,
- "error reading data\n");
- return -EIO;
- }
- }
- return -EIO;
- }
-
- /* read all the data available */
- for (; i < size; i++) {
- status = inb(chip->vendor->base + 1);
- if ((status & ATML_STATUS_DATA_AVAIL) == 0) {
- dev_err(&chip->pci_dev->dev,
- "error reading data\n");
- return -EIO;
- }
- *buf++ = inb(chip->vendor->base);
- }
-
- /* make sure data available is gone */
- status = inb(chip->vendor->base + 1);
- if (status & ATML_STATUS_DATA_AVAIL) {
- dev_err(&chip->pci_dev->dev, "data available is stuck\n");
- return -EIO;
- }
-
- return size;
-}
-
-static int tpm_atml_send(struct tpm_chip *chip, u8 * buf, size_t count)
-{
- int i;
-
- dev_dbg(&chip->pci_dev->dev, "tpm_atml_send: ");
- for (i = 0; i < count; i++) {
- dev_dbg(&chip->pci_dev->dev, "0x%x(%d) ", buf[i], buf[i]);
- outb(buf[i], chip->vendor->base);
- }
-
- return count;
-}
-
-static void tpm_atml_cancel(struct tpm_chip *chip)
-{
- outb(ATML_STATUS_ABORT, chip->vendor->base + 1);
-}
-
-static struct file_operations atmel_ops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .open = tpm_open,
- .read = tpm_read,
- .write = tpm_write,
- .release = tpm_release,
-};
-
-static struct tpm_vendor_specific tpm_atmel = {
- .recv = tpm_atml_recv,
- .send = tpm_atml_send,
- .cancel = tpm_atml_cancel,
- .req_complete_mask = ATML_STATUS_BUSY | ATML_STATUS_DATA_AVAIL,
- .req_complete_val = ATML_STATUS_DATA_AVAIL,
- .miscdev = { .fops = &atmel_ops, },
-};
-
-static int __devinit tpm_atml_init(struct pci_dev *pci_dev,
- const struct pci_device_id *pci_id)
-{
- u8 version[4];
- int rc = 0;
- int lo, hi;
-
- if (pci_enable_device(pci_dev))
- return -EIO;
-
- lo = tpm_read_index( TPM_ATMEL_BASE_ADDR_LO );
- hi = tpm_read_index( TPM_ATMEL_BASE_ADDR_HI );
-
- tpm_atmel.base = (hi<<8)|lo;
- dev_dbg( &pci_dev->dev, "Operating with base: 0x%x\n", tpm_atmel.base);
-
- /* verify that it is an Atmel part */
- if (tpm_read_index(4) != 'A' || tpm_read_index(5) != 'T'
- || tpm_read_index(6) != 'M' || tpm_read_index(7) != 'L') {
- rc = -ENODEV;
- goto out_err;
- }
-
- /* query chip for its version number */
- if ((version[0] = tpm_read_index(0x00)) != 0xFF) {
- version[1] = tpm_read_index(0x01);
- version[2] = tpm_read_index(0x02);
- version[3] = tpm_read_index(0x03);
- } else {
- dev_info(&pci_dev->dev, "version query failed\n");
- rc = -ENODEV;
- goto out_err;
- }
-
- if ((rc = tpm_register_hardware(pci_dev, &tpm_atmel)) < 0)
- goto out_err;
-
- dev_info(&pci_dev->dev,
- "Atmel TPM version %d.%d.%d.%d\n", version[0], version[1],
- version[2], version[3]);
-
- return 0;
-out_err:
- pci_disable_device(pci_dev);
- return rc;
-}
-
-static struct pci_device_id tpm_pci_tbl[] __devinitdata = {
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0)},
- {PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_LPC)},
- {0,}
-};
-
-MODULE_DEVICE_TABLE(pci, tpm_pci_tbl);
-
-static struct pci_driver atmel_pci_driver = {
- .name = "tpm_atmel",
- .id_table = tpm_pci_tbl,
- .probe = tpm_atml_init,
- .remove = __devexit_p(tpm_remove),
- .suspend = tpm_pm_suspend,
- .resume = tpm_pm_resume,
-};
-
-static int __init init_atmel(void)
-{
- return pci_register_driver(&atmel_pci_driver);
-}
-
-static void __exit cleanup_atmel(void)
-{
- pci_unregister_driver(&atmel_pci_driver);
-}
-
-module_init(init_atmel);
-module_exit(cleanup_atmel);
-
-MODULE_AUTHOR("Leendert van Doorn (leendert@xxxxxxxxxxxxxx)");
-MODULE_DESCRIPTION("TPM Driver");
-MODULE_VERSION("2.0");
-MODULE_LICENSE("GPL");
diff -r 8ff691d008f4 -r 03b58a6f498e
linux-2.6-xen-sparse/drivers/char/tpm/tpm_nsc.c
--- a/linux-2.6-xen-sparse/drivers/char/tpm/tpm_nsc.c Fri Sep 16 23:55:50 2005
+++ /dev/null Sat Sep 17 08:25:30 2005
@@ -1,377 +0,0 @@
-/*
- * Copyright (C) 2004 IBM Corporation
- *
- * Authors:
- * Leendert van Doorn <leendert@xxxxxxxxxxxxxx>
- * Dave Safford <safford@xxxxxxxxxxxxxx>
- * Reiner Sailer <sailer@xxxxxxxxxxxxxx>
- * Kylene Hall <kjhall@xxxxxxxxxx>
- *
- * Maintained by: <tpmdd_devel@xxxxxxxxxxxxxxxxxxxxx>
- *
- * Device driver for TCG/TCPA TPM (trusted platform module).
- * Specifications at www.trustedcomputinggroup.org
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation, version 2 of the
- * License.
- *
- */
-
-#include "tpm.h"
-
-/* National definitions */
-#define TPM_NSC_BASE 0x360
-#define TPM_NSC_IRQ 0x07
-#define TPM_NSC_BASE0_HI 0x60
-#define TPM_NSC_BASE0_LO 0x61
-#define TPM_NSC_BASE1_HI 0x62
-#define TPM_NSC_BASE1_LO 0x63
-
-#define NSC_LDN_INDEX 0x07
-#define NSC_SID_INDEX 0x20
-#define NSC_LDC_INDEX 0x30
-#define NSC_DIO_INDEX 0x60
-#define NSC_CIO_INDEX 0x62
-#define NSC_IRQ_INDEX 0x70
-#define NSC_ITS_INDEX 0x71
-
-#define NSC_STATUS 0x01
-#define NSC_COMMAND 0x01
-#define NSC_DATA 0x00
-
-/* status bits */
-#define NSC_STATUS_OBF 0x01 /* output buffer full */
-#define NSC_STATUS_IBF 0x02 /* input buffer full */
-#define NSC_STATUS_F0 0x04 /* F0 */
-#define NSC_STATUS_A2 0x08 /* A2 */
-#define NSC_STATUS_RDY 0x10 /* ready to receive
command */
-#define NSC_STATUS_IBR 0x20 /* ready to receive
data */
-
-/* command bits */
-#define NSC_COMMAND_NORMAL 0x01 /* normal mode */
-#define NSC_COMMAND_EOC 0x03
-#define NSC_COMMAND_CANCEL 0x22
-
-/*
- * Wait for a certain status to appear
- */
-static int wait_for_stat(struct tpm_chip *chip, u8 mask, u8 val, u8 * data)
-{
- int expired = 0;
- struct timer_list status_timer =
- TIMER_INITIALIZER(tpm_time_expired, jiffies + 10 * HZ,
- (unsigned long) &expired);
-
- /* status immediately available check */
- *data = inb(chip->vendor->base + NSC_STATUS);
- if ((*data & mask) == val)
- return 0;
-
- /* wait for status */
- add_timer(&status_timer);
- do {
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(TPM_TIMEOUT);
- *data = inb(chip->vendor->base + 1);
- if ((*data & mask) == val) {
- del_singleshot_timer_sync(&status_timer);
- return 0;
- }
- }
- while (!expired);
-
- return -EBUSY;
-}
-
-static int nsc_wait_for_ready(struct tpm_chip *chip)
-{
- int status;
- int expired = 0;
- struct timer_list status_timer =
- TIMER_INITIALIZER(tpm_time_expired, jiffies + 100,
- (unsigned long) &expired);
-
- /* status immediately available check */
- status = inb(chip->vendor->base + NSC_STATUS);
- if (status & NSC_STATUS_OBF)
- status = inb(chip->vendor->base + NSC_DATA);
- if (status & NSC_STATUS_RDY)
- return 0;
-
- /* wait for status */
- add_timer(&status_timer);
- do {
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(TPM_TIMEOUT);
- status = inb(chip->vendor->base + NSC_STATUS);
- if (status & NSC_STATUS_OBF)
- status = inb(chip->vendor->base + NSC_DATA);
- if (status & NSC_STATUS_RDY) {
- del_singleshot_timer_sync(&status_timer);
- return 0;
- }
- }
- while (!expired);
-
- dev_info(&chip->pci_dev->dev, "wait for ready failed\n");
- return -EBUSY;
-}
-
-
-static int tpm_nsc_recv(struct tpm_chip *chip, u8 * buf, size_t count)
-{
- u8 *buffer = buf;
- u8 data, *p;
- u32 size;
- __be32 *native_size;
-
- if (count < 6)
- return -EIO;
-
- if (wait_for_stat(chip, NSC_STATUS_F0, NSC_STATUS_F0, &data) < 0) {
- dev_err(&chip->pci_dev->dev, "F0 timeout\n");
- return -EIO;
- }
- if ((data =
- inb(chip->vendor->base + NSC_DATA)) != NSC_COMMAND_NORMAL) {
- dev_err(&chip->pci_dev->dev, "not in normal mode (0x%x)\n",
- data);
- return -EIO;
- }
-
- /* read the whole packet */
- for (p = buffer; p < &buffer[count]; p++) {
- if (wait_for_stat
- (chip, NSC_STATUS_OBF, NSC_STATUS_OBF, &data) < 0) {
- dev_err(&chip->pci_dev->dev,
- "OBF timeout (while reading data)\n");
- return -EIO;
- }
- if (data & NSC_STATUS_F0)
- break;
- *p = inb(chip->vendor->base + NSC_DATA);
- }
-
- if ((data & NSC_STATUS_F0) == 0) {
- dev_err(&chip->pci_dev->dev, "F0 not set\n");
- return -EIO;
- }
- if ((data = inb(chip->vendor->base + NSC_DATA)) != NSC_COMMAND_EOC) {
- dev_err(&chip->pci_dev->dev,
- "expected end of command(0x%x)\n", data);
- return -EIO;
- }
-
- native_size = (__force __be32 *) (buf + 2);
- size = be32_to_cpu(*native_size);
-
- if (count < size)
- return -EIO;
-
- return size;
-}
-
-static int tpm_nsc_send(struct tpm_chip *chip, u8 * buf, size_t count)
-{
- u8 data;
- int i;
-
- /*
- * If we hit the chip with back to back commands it locks up
- * and never set IBF. Hitting it with this "hammer" seems to
- * fix it. Not sure why this is needed, we followed the flow
- * chart in the manual to the letter.
- */
- outb(NSC_COMMAND_CANCEL, chip->vendor->base + NSC_COMMAND);
-
- if (nsc_wait_for_ready(chip) != 0)
- return -EIO;
-
- if (wait_for_stat(chip, NSC_STATUS_IBF, 0, &data) < 0) {
- dev_err(&chip->pci_dev->dev, "IBF timeout\n");
- return -EIO;
- }
-
- outb(NSC_COMMAND_NORMAL, chip->vendor->base + NSC_COMMAND);
- if (wait_for_stat(chip, NSC_STATUS_IBR, NSC_STATUS_IBR, &data) < 0) {
- dev_err(&chip->pci_dev->dev, "IBR timeout\n");
- return -EIO;
- }
-
- for (i = 0; i < count; i++) {
- if (wait_for_stat(chip, NSC_STATUS_IBF, 0, &data) < 0) {
- dev_err(&chip->pci_dev->dev,
- "IBF timeout (while writing data)\n");
- return -EIO;
- }
- outb(buf[i], chip->vendor->base + NSC_DATA);
- }
-
- if (wait_for_stat(chip, NSC_STATUS_IBF, 0, &data) < 0) {
- dev_err(&chip->pci_dev->dev, "IBF timeout\n");
- return -EIO;
- }
- outb(NSC_COMMAND_EOC, chip->vendor->base + NSC_COMMAND);
-
- return count;
-}
-
-static void tpm_nsc_cancel(struct tpm_chip *chip)
-{
- outb(NSC_COMMAND_CANCEL, chip->vendor->base + NSC_COMMAND);
-}
-
-static struct file_operations nsc_ops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .open = tpm_open,
- .read = tpm_read,
- .write = tpm_write,
- .release = tpm_release,
-};
-
-static struct tpm_vendor_specific tpm_nsc = {
- .recv = tpm_nsc_recv,
- .send = tpm_nsc_send,
- .cancel = tpm_nsc_cancel,
- .req_complete_mask = NSC_STATUS_OBF,
- .req_complete_val = NSC_STATUS_OBF,
- .miscdev = { .fops = &nsc_ops, },
-
-};
-
-static int __devinit tpm_nsc_init(struct pci_dev *pci_dev,
- const struct pci_device_id *pci_id)
-{
- int rc = 0;
- int lo, hi;
-
- hi = tpm_read_index(TPM_NSC_BASE0_HI);
- lo = tpm_read_index(TPM_NSC_BASE0_LO);
-
- tpm_nsc.base = (hi<<8) | lo;
-
- if (pci_enable_device(pci_dev))
- return -EIO;
-
- /* verify that it is a National part (SID) */
- if (tpm_read_index(NSC_SID_INDEX) != 0xEF) {
- rc = -ENODEV;
- goto out_err;
- }
-
- dev_dbg(&pci_dev->dev, "NSC TPM detected\n");
- dev_dbg(&pci_dev->dev,
- "NSC LDN 0x%x, SID 0x%x, SRID 0x%x\n",
- tpm_read_index(0x07), tpm_read_index(0x20),
- tpm_read_index(0x27));
- dev_dbg(&pci_dev->dev,
- "NSC SIOCF1 0x%x SIOCF5 0x%x SIOCF6 0x%x SIOCF8 0x%x\n",
- tpm_read_index(0x21), tpm_read_index(0x25),
- tpm_read_index(0x26), tpm_read_index(0x28));
- dev_dbg(&pci_dev->dev, "NSC IO Base0 0x%x\n",
- (tpm_read_index(0x60) << 8) | tpm_read_index(0x61));
- dev_dbg(&pci_dev->dev, "NSC IO Base1 0x%x\n",
- (tpm_read_index(0x62) << 8) | tpm_read_index(0x63));
- dev_dbg(&pci_dev->dev, "NSC Interrupt number and wakeup 0x%x\n",
- tpm_read_index(0x70));
- dev_dbg(&pci_dev->dev, "NSC IRQ type select 0x%x\n",
- tpm_read_index(0x71));
- dev_dbg(&pci_dev->dev,
- "NSC DMA channel select0 0x%x, select1 0x%x\n",
- tpm_read_index(0x74), tpm_read_index(0x75));
- dev_dbg(&pci_dev->dev,
- "NSC Config "
- "0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
- tpm_read_index(0xF0), tpm_read_index(0xF1),
- tpm_read_index(0xF2), tpm_read_index(0xF3),
- tpm_read_index(0xF4), tpm_read_index(0xF5),
- tpm_read_index(0xF6), tpm_read_index(0xF7),
- tpm_read_index(0xF8), tpm_read_index(0xF9));
-
- dev_info(&pci_dev->dev,
- "NSC PC21100 TPM revision %d\n",
- tpm_read_index(0x27) & 0x1F);
-
- if (tpm_read_index(NSC_LDC_INDEX) == 0)
- dev_info(&pci_dev->dev, ": NSC TPM not active\n");
-
- /* select PM channel 1 */
- tpm_write_index(NSC_LDN_INDEX, 0x12);
- tpm_read_index(NSC_LDN_INDEX);
-
- /* disable the DPM module */
- tpm_write_index(NSC_LDC_INDEX, 0);
- tpm_read_index(NSC_LDC_INDEX);
-
- /* set the data register base addresses */
- tpm_write_index(NSC_DIO_INDEX, TPM_NSC_BASE >> 8);
- tpm_write_index(NSC_DIO_INDEX + 1, TPM_NSC_BASE);
- tpm_read_index(NSC_DIO_INDEX);
- tpm_read_index(NSC_DIO_INDEX + 1);
-
- /* set the command register base addresses */
- tpm_write_index(NSC_CIO_INDEX, (TPM_NSC_BASE + 1) >> 8);
- tpm_write_index(NSC_CIO_INDEX + 1, (TPM_NSC_BASE + 1));
- tpm_read_index(NSC_DIO_INDEX);
- tpm_read_index(NSC_DIO_INDEX + 1);
-
- /* set the interrupt number to be used for the host interface */
- tpm_write_index(NSC_IRQ_INDEX, TPM_NSC_IRQ);
- tpm_write_index(NSC_ITS_INDEX, 0x00);
- tpm_read_index(NSC_IRQ_INDEX);
-
- /* enable the DPM module */
- tpm_write_index(NSC_LDC_INDEX, 0x01);
- tpm_read_index(NSC_LDC_INDEX);
-
- if ((rc = tpm_register_hardware(pci_dev, &tpm_nsc)) < 0)
- goto out_err;
-
- return 0;
-
-out_err:
- pci_disable_device(pci_dev);
- return rc;
-}
-
-static struct pci_device_id tpm_pci_tbl[] __devinitdata = {
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0)},
- {PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_LPC)},
- {0,}
-};
-
-MODULE_DEVICE_TABLE(pci, tpm_pci_tbl);
-
-static struct pci_driver nsc_pci_driver = {
- .name = "tpm_nsc",
- .id_table = tpm_pci_tbl,
- .probe = tpm_nsc_init,
- .remove = __devexit_p(tpm_remove),
- .suspend = tpm_pm_suspend,
- .resume = tpm_pm_resume,
-};
-
-static int __init init_nsc(void)
-{
- return pci_register_driver(&nsc_pci_driver);
-}
-
-static void __exit cleanup_nsc(void)
-{
- pci_unregister_driver(&nsc_pci_driver);
-}
-
-module_init(init_nsc);
-module_exit(cleanup_nsc);
-
-MODULE_AUTHOR("Leendert van Doorn (leendert@xxxxxxxxxxxxxx)");
-MODULE_DESCRIPTION("TPM Driver");
-MODULE_VERSION("2.0");
-MODULE_LICENSE("GPL");
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