X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=include%2Ftpm-common.h;h=e29b10b1766e1cc14c977f7f298def14f354981a;hb=32a8f800a96e8add063a31f6ef80d9ead3fcec04;hp=f8c5569003e8d8aac075232acbd1df838b1d7425;hpb=51f00c1704e505f51a02a3687e4384231ce8ae20;p=oweals%2Fu-boot.git

diff --git a/include/tpm-common.h b/include/tpm-common.h
index f8c5569003..e29b10b176 100644
--- a/include/tpm-common.h
+++ b/include/tpm-common.h
@@ -7,6 +7,8 @@
 #ifndef __TPM_COMMON_H
 #define __TPM_COMMON_H
 
+#include <command.h>
+
 enum tpm_duration {
 	TPM_SHORT = 0,
 	TPM_MEDIUM = 1,
@@ -173,12 +175,18 @@ struct tpm_ops {
 	U_BOOT_CMD_MKENT(cmd, 0, 1, do_tpm_ ## cmd, "", "")
 
 #define TPM_COMMAND_NO_ARG(cmd)				\
-int do_##cmd(cmd_tbl_t *cmdtp, int flag,		\
-	     int argc, char * const argv[])		\
+int do_##cmd(struct cmd_tbl *cmdtp, int flag,		\
+	     int argc, char *const argv[])		\
 {							\
+	struct udevice *dev;				\
+	int rc;						\
+							\
+	rc = get_tpm(&dev);				\
+	if (rc)						\
+		return rc;				\
 	if (argc != 1)					\
 		return CMD_RET_USAGE;			\
-	return report_return_code(cmd());		\
+	return report_return_code(cmd(dev));		\
 }
 
 /**
@@ -187,6 +195,7 @@ int do_##cmd(cmd_tbl_t *cmdtp, int flag,		\
  * After all commands have been completed the caller is supposed to
  * call tpm_close().
  *
+ * @dev - TPM device
  * Returns 0 on success, -ve on failure.
  */
 int tpm_open(struct udevice *dev);
@@ -196,9 +205,20 @@ int tpm_open(struct udevice *dev);
  *
  * Releasing the locked locality. Returns 0 on success, -ve 1 on
  * failure (in case lock removal did not succeed).
+ *
+ * @dev - TPM device
+ * Returns 0 on success, -ve on failure.
  */
 int tpm_close(struct udevice *dev);
 
+/**
+ * tpm_clear_and_reenable() - Force clear the TPM and reenable it
+ *
+ * @dev: TPM device
+ * @return 0 on success, -ve on failure
+ */
+u32 tpm_clear_and_reenable(struct udevice *dev);
+
 /**
  * tpm_get_desc() - Get a text description of the TPM
  *
@@ -222,6 +242,7 @@ int tpm_get_desc(struct udevice *dev, char *buf, int size);
  * Note that the outgoing data is inspected to determine command type
  * (ordinal) and a timeout is used for that command type.
  *
+ * @dev - TPM device
  * @sendbuf - buffer of the data to send
  * @send_size size of the data to send
  * @recvbuf - memory to save the response to
@@ -236,30 +257,45 @@ int tpm_xfer(struct udevice *dev, const u8 *sendbuf, size_t send_size,
 /**
  * Initialize TPM device.  It must be called before any TPM commands.
  *
+ * @dev - TPM device
  * @return 0 on success, non-0 on error.
  */
-int tpm_init(void);
+int tpm_init(struct udevice *dev);
 
 /**
  * Retrieve the array containing all the v1 (resp. v2) commands.
  *
- * @return a cmd_tbl_t array.
+ * @return a struct cmd_tbl array.
  */
 #if defined(CONFIG_TPM_V1)
-cmd_tbl_t *get_tpm1_commands(unsigned int *size);
+struct cmd_tbl *get_tpm1_commands(unsigned int *size);
 #else
-static inline cmd_tbl_t *get_tpm1_commands(unsigned int *size)
+static inline struct cmd_tbl *get_tpm1_commands(unsigned int *size)
 {
 	return NULL;
 }
 #endif
 #if defined(CONFIG_TPM_V2)
-cmd_tbl_t *get_tpm2_commands(unsigned int *size);
+struct cmd_tbl *get_tpm2_commands(unsigned int *size);
 #else
-static inline cmd_tbl_t *get_tpm2_commands(unsigned int *size)
+static inline struct cmd_tbl *get_tpm2_commands(unsigned int *size)
 {
 	return NULL;
 }
 #endif
 
+/**
+ * tpm_get_version() - Find the version of a TPM
+ *
+ * This checks the uclass data for a TPM device and returns the version number
+ * it supports.
+ *
+ * @dev: TPM device
+ * @return version number (TPM_V1 or TPMV2)
+ */
+enum tpm_version tpm_get_version(struct udevice *dev);
+
+/* Iterate on all TPM devices */
+#define for_each_tpm_device(dev) uclass_foreach_dev_probe(UCLASS_TPM, (dev))
+
 #endif /* __TPM_COMMON_H */