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authorKylene Jo Hall <kjhall@us.ibm.com>2005-10-30 15:03:23 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-10-30 17:37:28 -0800
commitb4ed3e3cbb312869929cf4528d71e52629a6cacb (patch)
treed514dfb584eebf74f7d89d3cdd57618e55aaaeca /drivers/char/tpm/tpm_nsc.c
parent162a88f7b8539a097a088c0321ea1997cacccaea (diff)
[PATCH] tpm: add status function to allow non-lpc bus chips
This patch is in preparation of supporting chips that are not necessarily on the lpc bus and thus are not accessed with inb's and outb's. The patch replaces the call to get the chip's status in the tpm.c file with a vendor specific status function. The patch also defines the function for each of the current supported devices. Signed-off-by: Kylene Hall <kjhall@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/char/tpm/tpm_nsc.c')
-rw-r--r--drivers/char/tpm/tpm_nsc.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm_nsc.c b/drivers/char/tpm/tpm_nsc.c
index b4127348c06..bf3e774c4dc 100644
--- a/drivers/char/tpm/tpm_nsc.c
+++ b/drivers/char/tpm/tpm_nsc.c
@@ -220,6 +220,11 @@ static void tpm_nsc_cancel(struct tpm_chip *chip)
outb(NSC_COMMAND_CANCEL, chip->vendor->base + NSC_COMMAND);
}
+static u8 tpm_nsc_status(struct tpm_chip *chip)
+{
+ return inb(chip->vendor->base + NSC_STATUS);
+}
+
static struct file_operations nsc_ops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
@@ -248,6 +253,7 @@ static struct tpm_vendor_specific tpm_nsc = {
.recv = tpm_nsc_recv,
.send = tpm_nsc_send,
.cancel = tpm_nsc_cancel,
+ .status = tpm_nsc_status,
.req_complete_mask = NSC_STATUS_OBF,
.req_complete_val = NSC_STATUS_OBF,
.req_canceled = NSC_STATUS_RDY,