tis.c File Reference

#include <stdint.h>
#include <string.h>
#include <assert.h>
#include <commonlib/endian.h>
#include <console/console.h>
#include <delay.h>
#include <device/i2c_simple.h>
#include <endian.h>
#include <lib.h>
#include <security/tpm/tis.h>
#include "tpm.h"

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Macros
#define	TPM_CMD_COUNT_BYTE   2
#define	TPM_CMD_ORDINAL_BYTE   6

Functions
int	tis_open (void)
int	tis_close (void)
int	tis_init (void)
static ssize_t	tpm_transmit (const uint8_t *sbuf, size_t sbufsiz, void *rbuf, size_t rbufsiz)
int	tis_sendrecv (const uint8_t *sendbuf, size_t sbuf_size, uint8_t *recvbuf, size_t *rbuf_len)

Variables
static struct tpm_chip	chip

Macro Definition Documentation

TPM_CMD_COUNT_BYTE

#define TPM_CMD_COUNT_BYTE   2

Definition at line 19 of file tis.c.

TPM_CMD_ORDINAL_BYTE

#define TPM_CMD_ORDINAL_BYTE   6

Definition at line 20 of file tis.c.

Function Documentation

tis_close()

int tis_close

(

void

)

Definition at line 42 of file tis.c.

References chip, tpm_chip::is_open, and tpm_vendor_cleanup().

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tis_init()

int tis_init

(

void

)

Definition at line 52 of file tis.c.

References tpm_vendor_probe().

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tis_open()

int tis_open

(

void

)

Definition at line 22 of file tis.c.

References BIOS_DEBUG, chip, tpm_chip::is_open, printk, and tpm_vendor_init().

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tis_sendrecv()

int tis_sendrecv	(	const uint8_t *	sendbuf,
		size_t	sbuf_size,
		uint8_t *	recvbuf,
		size_t *	rbuf_len
	)

Definition at line 121 of file tis.c.

References ASSERT, BIOS_DEBUG, CONFIG, hexdump(), printk, read_at_be32(), and tpm_transmit().

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tpm_transmit()

static ssize_t tpm_transmit ( const uint8_t *  sbuf, size_t  sbufsiz, void *  rbuf, size_t  rbufsiz  )

static

Definition at line 58 of file tis.c.

References ASSERT, BIOS_DEBUG, tpm_vendor_specific::cancel, chip, count, mdelay(), memcpy(), printk, tpm_vendor_specific::recv, tpm_vendor_specific::req_canceled, tpm_vendor_specific::req_complete_mask, tpm_vendor_specific::req_complete_val, tpm_vendor_specific::send, tpm_vendor_specific::status, TPM_CMD_COUNT_BYTE, TPM_TIMEOUT, and tpm_chip::vendor.

Referenced by tis_sendrecv().

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Variable Documentation

chip

struct tpm_chip chip

static

Definition at line 1 of file tis.c.

Referenced by acpi_fill_fadt(), bridge_ps8640_get_edid(), check_locality(), cr50_i2c_tis_ready(), cr50_i2c_tis_recv(), cr50_i2c_tis_send(), cr50_i2c_tis_status(), cr50_i2c_wait_burststs(), cr50_vendor_init(), ddr3_mem_ctrl_init(), dmc_config_mrs(), dmc_config_prech(), get_burstcount(), gma_generate_ssdt(), google_chromeec_command(), google_chromeec_i2c_xfer(), i2c_dump(), i2c_read_field(), i2c_send_start(), i2c_transfer_segment(), i2c_write_field(), intel_igd_get_controller_info(), platform_i2c_transfer(), pmic_write_reg(), ps8640_backlight_enable(), ps8640_bridge_aux_request(), ps8640_get_edid(), recv_data(), request_locality(), sn65dsi86_backlight_enable(), sn65dsi86_bridge_assr_config(), sn65dsi86_bridge_configure(), sn65dsi86_bridge_dp_lane_config(), sn65dsi86_bridge_init(), sn65dsi86_bridge_link_training(), sn65dsi86_bridge_set_bridge_active_timing(), sn65dsi86_bridge_set_dp_clock_range(), sn65dsi86_bridge_set_dsi_clock_range(), sn65dsi86_bridge_valid_dp_rates(), software_i2c_wedge_ack(), software_i2c_wedge_read(), software_i2c_wedge_write(), southbridge_fill_ssdt(), tegra_i2c_request(), tis_close(), tis_open(), tpm_tis_i2c_ready(), tpm_tis_i2c_recv(), tpm_tis_i2c_send(), tpm_tis_i2c_status(), tpm_transmit(), tpm_vendor_cleanup(), tpm_vendor_init(), and wait_for_stat().