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2018-07-28tpm: allow TPM v1 and v2 to be compiled at the same timeMiquel Raynal1-6/+34
While there is probably no reason to do so in a real life situation, it will allow to compile test both stacks with the same sandbox defconfig. As we cannot define two 'tpm' commands at the same time, the command for TPM v1 is still called 'tpm' and the one for TPM v2 'tpm2'. While this is the exact command name that must be written into eg. test files, any user already using the TPM v2 stack can continue to do so by just writing 'tpm' because as long as TPM v1 support is not compiled, U-Boot prompt will search for the closest command named after 'tpm'. The command set can also be changed at runtime (not supported yet, but ready to be), but as one can compile only either one stack or the other, there is still one spot in the code where conditionals are used: to retrieve the v1 or v2 command set. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Simon Glass <sjg@chromium.org> [trini: In sandbox_tpm2_fill_buf() use NULL not \0 to ensure NULL terminated string due to LLVM warning] Signed-off-by: Tom Rini <trini@konsulko.com>
2018-07-28tpm: fix typo in kernel docMiquel Raynal1-1/+1
The udevice given to the open() function of course must be opened, not closed. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-05-26tpm: prepare support for TPMv2.x commandsMiquel Raynal1-0/+6
Choice between v1 and v2 compliant functions is done with the configuration. Create the various files that will receive TPMv2-only code on the same scheme as for the TPMv1 code. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2018-05-26tpm: add missing parameter in private data structure descriptionMiquel Raynal1-0/+1
Both parameters 'duration_ms' and 'retry_time_ms' of the tpm_chip_priv structure are documented is the comment above the declaration but 'buf' was forgotten. Add the missing description. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-05-26tpm: disociate TPMv1.x specific and generic codeMiquel Raynal1-0/+210
There are no changes in this commit but a new organization of the code as follow. * cmd/ directory: > move existing code from cmd/tpm.c in cmd/tpm-common.c > move specific code in cmd/tpm-v1.c > create a specific header file with generic definitions for commands only called cmd/tpm-user-utils.h * lib/ directory: > move existing code from lib/tpm.c in lib/tpm-common.c > move specific code in lib/tpm-v1.c > create a specific header file with generic definitions for the library itself called lib/tpm-utils.h * include/ directory: > move existing code from include/tpm.h in include/tpm-common.h > move specific code in include/tpm-v1.h Code designated as 'common' is compiled if TPM are used. Code designated as 'specific' is compiled only if the right specification has been selected. All files include tpm-common.h. Files in cmd/ include tpm-user-utils.h. Files in lib/ include tpm-utils.h. Depending on the specification, files may include either (not both) tpm-v1.h or tpm-v2.h. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Tom Rini <trini@konsulko.com> [trini: Fix a few more cases of tpm.h -> tpm-v1.h, some Kconfig logic] Signed-off-by: Tom Rini <trini@konsulko.com>