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[PATCH] tpm: driver for next generation TPM chips

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The driver for the next generation of TPM chips version 1.2 including support
for interrupts.  The Trusted Computing Group has written the TPM Interface
Specification (TIS) which defines a common interface for all manufacturer's
1.2 TPM's thus the name tpm_tis.

Signed-off-by: Leendert van Doorn <leendert@watson.ibm.com>
Signed-off-by: Kylene Hall <kjhall@us.ibm.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Leendert van Doorn
2006-04-22 02:38:03 -07:00
committed by Linus Torvalds
parent 08e96e486d
commit 27084efee0
5 changed files with 670 additions and 1 deletions
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9
drivers/char/tpm/tpm.h
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@@ -64,6 +64,8 @@ struct tpm_vendor_specific {
void __iomem *iobase; /* ioremapped address */
unsigned long base; /* TPM base address */
int irq;
int region_size;
int have_region;
@@ -73,8 +75,13 @@ struct tpm_vendor_specific {
u8 (*status) (struct tpm_chip *);
struct miscdevice miscdev;
struct attribute_group *attr_group;
struct list_head list;
int locality;
u32 timeout_a, timeout_b, timeout_c, timeout_d;
u32 duration[3];
wait_queue_head_t read_queue;
wait_queue_head_t int_queue;
};
struct tpm_chip {
@@ -100,6 +107,8 @@ struct tpm_chip {
struct list_head list;
};
#define to_tpm_chip(n) container_of(n, struct tpm_chip, vendor)
static inline int tpm_read_index(int base, int index)
{
outb(index, base);