coreboot: src/soc/intel/common/block/tcss/tcss.c File Reference

coreboot

coreboot is an Open Source project aimed at replacing the proprietary BIOS found in most computers.

#include <bootmode.h>
#include <console/console.h>
#include <device/pci.h>
#include <intelblocks/p2sb.h>
#include <intelblocks/pcr.h>
#include <intelblocks/pmc_ipc.h>
#include <intelblocks/systemagent.h>
#include <intelblocks/tcss.h>
#include <inttypes.h>
#include <security/vboot/vboot_common.h>
#include <soc/pci_devs.h>
#include <soc/pcr_ids.h>
#include <soc/tcss.h>
#include <drivers/intel/pmc_mux/conn/chip.h>

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Macros
#define	__SIMPLE_DEVICE__

#define	BIAS_CTRL_VW_INDEX_SHIFT 16

#define	BIAS_CTRL_BIT_POS_SHIFT 8

#define	WAIT_FOR_DISPLAYPORT_TIMEOUT_MS 1000

#define	WAIT_FOR_HPD_TIMEOUT_MS 3000

Functions
static uint32_t	tcss_make_conn_cmd (int u, int u3, int u2, int ufp, int hsl, int sbu, int acc)

static uint32_t	tcss_make_alt_mode_cmd_buf_0 (int u, int u3, int m)

static uint32_t	tcss_make_alt_mode_cmd_buf_1 (int p, int c, int ufp, int dp)

static uint32_t	tcss_make_safe_mode_cmd (int u, int u3)

static uint32_t	tcss_make_hpd_mode_cmd (int u, int u3, int hpd_lvl, int hpd_irq)

static int	send_pmc_req (int cmd_type, const struct pmc_ipc_buffer req, struct pmc_ipc_buffer res, uint32_t size)

static int	send_pmc_disconnect_request (int port, const struct tcss_port_map *port_map)

static int	send_pmc_connect_request (int port, const struct usbc_mux_info mux_data, const struct tcss_port_map port_map)

static int	send_pmc_safe_mode_request (int port, const struct usbc_mux_info mux_data, const struct tcss_port_map port_map)

static int	send_pmc_dp_hpd_request (int port, const struct usbc_mux_info mux_data, const struct tcss_port_map port_map)

static int	send_pmc_dp_mode_request (int port, const struct usbc_mux_info mux_data, const struct tcss_port_map port_map)

static void	tcss_init_mux (int port, const struct tcss_port_map *port_map)

static void	tcss_configure_dp_mode (const struct tcss_port_map *port_map, size_t num_ports)

static uint32_t	calc_bias_ctrl_reg_value (gpio_t pad)

void	tcss_configure_aux_bias_pads_regbar (const struct typec_aux_bias_pads *pads)

void	ioe_tcss_configure_aux_bias_pads_sbi (const struct typec_aux_bias_pads *pads)

const struct tcss_port_map *	tcss_get_port_info (size_t *num_ports)

void	tcss_configure (const struct typec_aux_bias_pads aux_bias_pads[MAX_TYPE_C_PORTS])

bool	tcss_valid_tbt_auth (void)

bool	ioe_tcss_valid_tbt_auth (void)

Macro Definition Documentation

◆ __SIMPLE_DEVICE__

#define __SIMPLE_DEVICE__

Definition at line 3 of file tcss.c.

◆ BIAS_CTRL_BIT_POS_SHIFT

#define BIAS_CTRL_BIT_POS_SHIFT 8

Definition at line 21 of file tcss.c.

◆ BIAS_CTRL_VW_INDEX_SHIFT

#define BIAS_CTRL_VW_INDEX_SHIFT 16

Definition at line 20 of file tcss.c.

◆ WAIT_FOR_DISPLAYPORT_TIMEOUT_MS

#define WAIT_FOR_DISPLAYPORT_TIMEOUT_MS 1000

Definition at line 22 of file tcss.c.

◆ WAIT_FOR_HPD_TIMEOUT_MS

#define WAIT_FOR_HPD_TIMEOUT_MS 3000

Definition at line 23 of file tcss.c.

Function Documentation

◆ calc_bias_ctrl_reg_value()

static uint32_t calc_bias_ctrl_reg_value ( gpio_t pad )

static

Definition at line 346 of file tcss.c.

References BIAS_CTRL_BIT_POS_SHIFT, BIAS_CTRL_VW_INDEX_SHIFT, gpio_get_pad_cpu_portid(), and gpio_get_vw_info().

Referenced by ioe_tcss_configure_aux_bias_pads_sbi(), and tcss_configure_aux_bias_pads_regbar().

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◆ ioe_tcss_configure_aux_bias_pads_sbi()

void ioe_tcss_configure_aux_bias_pads_sbi ( const struct typec_aux_bias_pads * pads )

Definition at line 371 of file tcss.c.

References calc_bias_ctrl_reg_value(), ioe_p2sb_sbi_write(), IOM_AUX_BIAS_CTRL_PULLDOWN_OFFSET, IOM_AUX_BIAS_CTRL_PULLUP_OFFSET, MAX_TYPE_C_PORTS, and PID_IOM.

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◆ ioe_tcss_valid_tbt_auth()

bool ioe_tcss_valid_tbt_auth ( void )

Definition at line 441 of file tcss.c.

References ioe_p2sb_sbi_read(), IOM_CSME_IMR_TBT_STATUS, PID_IOM, and TBT_VALID_AUTHENTICATION.

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◆ send_pmc_connect_request()

static int send_pmc_connect_request	(	int	port,
		const struct usbc_mux_info *	mux_data,
		const struct tcss_port_map *	port_map
	)

static

Definition at line 138 of file tcss.c.

References BIOS_DEBUG, pmc_ipc_buffer::buf, CONNECT_REQ, usbc_mux_info::dbg_acc, GET_TCSS_CD_FIELD, PMC_IPC_CONN_REQ_SIZE, PMC_IPC_TCSS_CONN_REQ_RES, usbc_mux_info::polarity, printk, send_pmc_req(), tcss_make_conn_cmd(), usbc_mux_info::ufp, tcss_port_map::usb2_port, and tcss_port_map::usb3_port.

Referenced by tcss_configure_dp_mode().

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◆ send_pmc_disconnect_request()

static int send_pmc_disconnect_request	(	int	port,
		const struct tcss_port_map *	port_map
	)

static

Definition at line 118 of file tcss.c.

References BIOS_DEBUG, pmc_ipc_buffer::buf, CONNECT_REQ, GET_TCSS_CD_FIELD, PMC_IPC_DISC_REQ_SIZE, PMC_IPC_TCSS_DISC_REQ_RES, printk, send_pmc_req(), tcss_make_conn_cmd(), tcss_port_map::usb2_port, and tcss_port_map::usb3_port.

Referenced by tcss_init_mux().

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◆ send_pmc_dp_hpd_request()

static int send_pmc_dp_hpd_request	(	int	port,
		const struct usbc_mux_info *	mux_data,
		const struct tcss_port_map *	port_map
	)

static

Definition at line 189 of file tcss.c.

References pmc_ipc_buffer::buf, usbc_mux_info::hpd_irq, usbc_mux_info::hpd_lvl, HPD_REQ, PMC_IPC_HPD_REQ_SIZE, PMC_IPC_TCSS_HPD_REQ_RES, send_pmc_req(), tcss_make_hpd_mode_cmd(), and tcss_port_map::usb3_port.

Referenced by send_pmc_dp_mode_request().

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◆ send_pmc_dp_mode_request()

static int send_pmc_dp_mode_request	(	int	port,
		const struct usbc_mux_info *	mux_data,
		const struct tcss_port_map *	port_map
	)

static

Definition at line 208 of file tcss.c.

References BIOS_DEBUG, pmc_ipc_buffer::buf, usbc_mux_info::cable, usbc_mux_info::dp_pin_mode, DP_REQ, GET_TCSS_ALT_FIELD, MODE, MODE_DP_PIN_A, MODE_DP_PIN_B, MODE_DP_PIN_C, MODE_DP_PIN_D, MODE_DP_PIN_E, MODE_DP_PIN_F, PMC_IPC_ALT_REQ_SIZE, PMC_IPC_DP_MODE, PMC_IPC_TCSS_ALTMODE_REQ_RES, usbc_mux_info::polarity, printk, send_pmc_dp_hpd_request(), send_pmc_req(), tcss_make_alt_mode_cmd_buf_0(), tcss_make_alt_mode_cmd_buf_1(), and tcss_port_map::usb3_port.

Referenced by tcss_configure_dp_mode().

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◆ send_pmc_req()

static int send_pmc_req	(	int	cmd_type,
		const struct pmc_ipc_buffer *	req,
		struct pmc_ipc_buffer *	res,
		uint32_t	size
	)

static

Definition at line 69 of file tcss.c.

References BIOS_DEBUG, BIOS_ERR, pmc_ipc_buffer::buf, CONNECT_REQ, PMC_IPC_USBC_CMD_ID, PMC_IPC_USBC_SUBCMD_ID, pmc_make_ipc_cmd(), pmc_send_ipc_cmd(), printk, PRIx32, TCSS_CONN_STATUS_HAS_FAILED, TCSS_CONN_STATUS_IS_FATAL, TCSS_STATUS_HAS_FAILED, and TCSS_STATUS_IS_FATAL.

Referenced by send_pmc_connect_request(), send_pmc_disconnect_request(), send_pmc_dp_hpd_request(), send_pmc_dp_mode_request(), and send_pmc_safe_mode_request().

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◆ send_pmc_safe_mode_request()

static int send_pmc_safe_mode_request	(	int	port,
		const struct usbc_mux_info *	mux_data,
		const struct tcss_port_map *	port_map
	)

static

Definition at line 170 of file tcss.c.

References BIOS_DEBUG, pmc_ipc_buffer::buf, GET_TCSS_CD_FIELD, PMC_IPC_SAFE_REQ_SIZE, PMC_IPC_TCSS_SAFE_MODE_REQ_RES, printk, SAFE_REQ, send_pmc_req(), tcss_make_safe_mode_cmd(), and tcss_port_map::usb3_port.

Referenced by tcss_configure_dp_mode().

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◆ tcss_configure()

void tcss_configure ( const struct typec_aux_bias_pads aux_bias_pads[MAX_TYPE_C_PORTS] )

Definition at line 415 of file tcss.c.

References CONFIG, soc_tcss_ops::configure_aux_bias_pads, NULL, tcss_configure_dp_mode(), tcss_get_port_info(), tcss_init_mux(), and tcss_ops.

Referenced by platform_fsp_multi_phase_init_cb().

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◆ tcss_configure_aux_bias_pads_regbar()

void tcss_configure_aux_bias_pads_regbar ( const struct typec_aux_bias_pads * pads )

Definition at line 358 of file tcss.c.

References calc_bias_ctrl_reg_value(), IOM_AUX_BIAS_CTRL_PULLDOWN_OFFSET, IOM_AUX_BIAS_CTRL_PULLUP_OFFSET, MAX_TYPE_C_PORTS, PID_IOM, and REGBAR32.

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◆ tcss_configure_dp_mode()

static void tcss_configure_dp_mode	(	const struct tcss_port_map *	port_map,
		size_t	num_ports
	)

static

Definition at line 288 of file tcss.c.

References BIOS_ERR, BIOS_INFO, BIT, display_init_required(), NULL, ops, printk, send_pmc_connect_request(), send_pmc_dp_mode_request(), send_pmc_safe_mode_request(), usbc_get_ops(), WAIT_FOR_DISPLAYPORT_TIMEOUT_MS, and WAIT_FOR_HPD_TIMEOUT_MS.

Referenced by tcss_configure().

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◆ tcss_get_port_info()

const struct tcss_port_map* tcss_get_port_info ( size_t * num_ports )

Definition at line 384 of file tcss.c.

References ARRAY_SIZE, CONFIG, DEVICE_PATH_GENERIC, DEVICE_PATH_PCI, find_dev_nested_path(), intel_pmc_mux_conn_get_ports(), is_dev_enabled(), MAX_TYPE_C_PORTS, PCH_DEVFN_PMC, pci_root_bus(), device_path::type, tcss_port_map::usb2_port, and tcss_port_map::usb3_port.

Referenced by tcss_configure().

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◆ tcss_init_mux()

static void tcss_init_mux	(	int	port,
		const struct tcss_port_map *	port_map
	)

static

Definition at line 279 of file tcss.c.

References BIOS_ERR, printk, and send_pmc_disconnect_request().

Referenced by tcss_configure().

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◆ tcss_make_alt_mode_cmd_buf_0()

static uint32_t tcss_make_alt_mode_cmd_buf_0	(	int	u,
		int	u3,
		int	m
	)

static

Definition at line 37 of file tcss.c.

References m, MODE, and TCSS_ALT_FIELD.

Referenced by send_pmc_dp_mode_request().

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◆ tcss_make_alt_mode_cmd_buf_1()

static uint32_t tcss_make_alt_mode_cmd_buf_1	(	int	p,
		int	c,
		int	ufp,
		int	dp
	)

static

Definition at line 45 of file tcss.c.

References c, and TCSS_ALT_FIELD.

Referenced by send_pmc_dp_mode_request().

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◆ tcss_make_conn_cmd()

static uint32_t tcss_make_conn_cmd	(	int	u,
		int	u3,
		int	u2,
		int	ufp,
		int	hsl,
		int	sbu,
		int	acc
	)

static

Definition at line 25 of file tcss.c.

References TCSS_CD_FIELD.

Referenced by send_pmc_connect_request(), and send_pmc_disconnect_request().

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◆ tcss_make_hpd_mode_cmd()

static uint32_t tcss_make_hpd_mode_cmd	(	int	u,
		int	u3,
		int	hpd_lvl,
		int	hpd_irq
	)

static

Definition at line 60 of file tcss.c.

References TCSS_HPD_FIELD.

Referenced by send_pmc_dp_hpd_request().

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◆ tcss_make_safe_mode_cmd()

static uint32_t tcss_make_safe_mode_cmd	(	int	u,
		int	u3
	)

static

Definition at line 53 of file tcss.c.

References TCSS_CD_FIELD.

Referenced by send_pmc_safe_mode_request().

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◆ tcss_valid_tbt_auth()

bool tcss_valid_tbt_auth ( void )

Definition at line 436 of file tcss.c.

References IOM_CSME_IMR_TBT_STATUS, PID_IOM, REGBAR32, and TBT_VALID_AUTHENTICATION.

src
soc
intel
common
block
tcss
tcss.c
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