2  * tpm_tis_i2c.c - QEMU's TPM TIS I2C Device
12  * TPM I2C implementation follows TCG TPM I2c Interface specification,
21 #include "hw/i2c/i2c.h"
45     /* i2c registers */
66     uint8_t   i2c_reg;    /* I2C register */
78      * mapping are not sent to TIS layer and handled in I2c layer.
114     .name = "tpm-tis-i2c",
128         /* i2c specifics */
152  * expected by I2C. Save the capability in the data array overwriting the TIS
160     /* Now generate i2c capability */  in tpm_tis_i2c_interface_capability()
178 /* Convert I2C register to TIS address and returns the name of the register */
302 static int tpm_tis_i2c_event(I2CSlave *i2c, enum i2c_event event)  in tpm_tis_i2c_event()  argument
304     TPMStateI2C *i2cst = TPM_TIS_I2C(i2c);  in tpm_tis_i2c_event()
335 static uint8_t tpm_tis_i2c_recv(I2CSlave *i2c)  in tpm_tis_i2c_recv()  argument
339     TPMStateI2C *i2cst = TPM_TIS_I2C(i2c);  in tpm_tis_i2c_recv()
361             /* Location selection register is managed by i2c */  in tpm_tis_i2c_recv()
394                 /* Prepare the capabilities as per I2C interface */  in tpm_tis_i2c_recv()
438 static int tpm_tis_i2c_send(I2CSlave *i2c, uint8_t data)  in tpm_tis_i2c_send()  argument
440     TPMStateI2C *i2cst = TPM_TIS_I2C(i2c);  in tpm_tis_i2c_send()
444         /* Convert I2C register to TIS register */  in tpm_tis_i2c_send()
469          *    register value hence I2C layer cache the register value and send  in tpm_tis_i2c_send()