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tpm: Create a tpm_class_ops structure and use it in the drivers

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This replaces the static initialization of a tpm_vendor_specific
structure in the drivers with the standard Linux idiom of providing
a const structure of function pointers.

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Joel Schopp <jschopp@linux.vnet.ibm.com>
Reviewed-by: Ashley Lai <adlai@linux.vnet.ibm.com>
[phuewe: did apply manually due to commit
191ffc6bde3 tpm/tpm_i2c_atmel: fix coccinelle warnings]
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
This commit is contained in:
Jason Gunthorpe
2013-11-26 13:30:43 -07:00
committed by Peter Huewe
parent 1e3b73a957
commit 01ad1fa75d
13 changed files with 33 additions and 15 deletions
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12
include/linux/tpm.h
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@@ -29,6 +29,18 @@
*/
#define TPM_ANY_NUM 0xFFFF
struct tpm_chip;
struct tpm_class_ops {
const u8 req_complete_mask;
const u8 req_complete_val;
bool (*req_canceled)(struct tpm_chip *chip, u8 status);
int (*recv) (struct tpm_chip *chip, u8 *buf, size_t len);
int (*send) (struct tpm_chip *chip, u8 *buf, size_t len);
void (*cancel) (struct tpm_chip *chip);
u8 (*status) (struct tpm_chip *chip);
};
#if defined(CONFIG_TCG_TPM) || defined(CONFIG_TCG_TPM_MODULE)
extern int tpm_pcr_read(u32 chip_num, int pcr_idx, u8 *res_buf);