FM / usb

/usr/src/linux-headers-5.15.0-181/include/linux/usb/

/usr/src/linux-headers-5.15.0-181/include/linux/usb

Name	Size	Mode	Actions
audio-v2.h	14356	0644	edit dl rm
audio-v3.h	14270	0644	edit dl rm
audio.h	1261	0644	edit dl rm
c67x00.h	1867	0644	edit dl rm
ccid.h	787	0644	edit dl rm
cdc-wdm.h	701	0644	edit dl rm
cdc.h	1517	0644	edit dl rm
cdc_ncm.h	5978	0644	edit dl rm
ch9.h	2342	0644	edit dl rm
chipidea.h	3512	0644	edit dl rm
composite.h	26172	0644	edit dl rm
ehci-dbgp.h	2099	0644	edit dl rm
ehci_def.h	8277	0644	edit dl rm
ehci_pdriver.h	2395	0644	edit dl rm
ezusb.h	286	0644	edit dl rm
functionfs.h	151	0644	edit dl rm
gadget.h	37543	0644	edit dl rm
gadget_configfs.h	3014	0644	edit dl rm
g_hid.h	1158	0644	edit dl rm
hcd.h	28343	0644	edit dl rm
input.h	716	0644	edit dl rm
iowarrior.h	1374	0644	edit dl rm
irda.h	3853	0644	edit dl rm
isp116x.h	1160	0644	edit dl rm
isp1301.h	2433	0644	edit dl rm
isp1362.h	1628	0644	edit dl rm
m66592.h	1444	0644	edit dl rm
musb-ux500.h	899	0644	edit dl rm
musb.h	3600	0644	edit dl rm
net2280.h	24120	0644	edit dl rm
of.h	1859	0644	edit dl rm
ohci_pdriver.h	1748	0644	edit dl rm
otg-fsm.h	8823	0644	edit dl rm
otg.h	3158	0644	edit dl rm
pd.h	15254	0644	edit dl rm
pd_ado.h	1191	0644	edit dl rm
pd_bdo.h	555	0644	edit dl rm
pd_ext_sdb.h	698	0644	edit dl rm
pd_vdo.h	16554	0644	edit dl rm
phy.h	8435	0644	edit dl rm
phy_companion.h	1197	0644	edit dl rm
quirks.h	2403	0644	edit dl rm
r8a66597.h	18069	0644	edit dl rm
r8152.h	1067	0644	edit dl rm
renesas_usbhs.h	4303	0644	edit dl rm
rndis_host.h	6080	0644	edit dl rm
role.h	3663	0644	edit dl rm
serial.h	17596	0644	edit dl rm
sl811.h	838	0644	edit dl rm
storage.h	2645	0644	edit dl rm
tcpci.h	6883	0644	edit dl rm
tcpm.h	6614	0644	edit dl rm
tegra_usb_phy.h	2586	0644	edit dl rm
typec.h	9590	0644	edit dl rm
typec_altmode.h	6639	0644	edit dl rm
typec_dp.h	3998	0644	edit dl rm
typec_mux.h	2115	0644	edit dl rm
typec_tbt.h	1774	0644	edit dl rm
uas.h	2121	0644	edit dl rm
ulpi.h	2319	0644	edit dl rm
usb338x.h	7977	0644	edit dl rm
usbnet.h	10825	0644	edit dl rm
usb_phy_generic.h	582	0644	edit dl rm
xhci-dbgp.h	825	0644	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-181/include/linux/usb/tcpm.h (6614B)

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright 2015-2017 Google, Inc
 */

#ifndef __LINUX_USB_TCPM_H
#define __LINUX_USB_TCPM_H

#include <linux/bitops.h>
#include <linux/usb/typec.h>
#include "pd.h"

enum typec_cc_status {
	TYPEC_CC_OPEN,
	TYPEC_CC_RA,
	TYPEC_CC_RD,
	TYPEC_CC_RP_DEF,
	TYPEC_CC_RP_1_5,
	TYPEC_CC_RP_3_0,
};

/* Collision Avoidance */
#define SINK_TX_NG	TYPEC_CC_RP_1_5
#define SINK_TX_OK	TYPEC_CC_RP_3_0

enum typec_cc_polarity {
	TYPEC_POLARITY_CC1,
	TYPEC_POLARITY_CC2,
};

/* Time to wait for TCPC to complete transmit */
#define PD_T_TCPC_TX_TIMEOUT	100		/* in ms	*/
#define PD_ROLE_SWAP_TIMEOUT	(MSEC_PER_SEC * 10)
#define PD_PPS_CTRL_TIMEOUT	(MSEC_PER_SEC * 10)

enum tcpm_transmit_status {
	TCPC_TX_SUCCESS = 0,
	TCPC_TX_DISCARDED = 1,
	TCPC_TX_FAILED = 2,
};

enum tcpm_transmit_type {
	TCPC_TX_SOP = 0,
	TCPC_TX_SOP_PRIME = 1,
	TCPC_TX_SOP_PRIME_PRIME = 2,
	TCPC_TX_SOP_DEBUG_PRIME = 3,
	TCPC_TX_SOP_DEBUG_PRIME_PRIME = 4,
	TCPC_TX_HARD_RESET = 5,
	TCPC_TX_CABLE_RESET = 6,
	TCPC_TX_BIST_MODE_2 = 7
};

/* Mux state attributes */
#define TCPC_MUX_USB_ENABLED		BIT(0)	/* USB enabled */
#define TCPC_MUX_DP_ENABLED		BIT(1)	/* DP enabled */
#define TCPC_MUX_POLARITY_INVERTED	BIT(2)	/* Polarity inverted */

/**
 * struct tcpc_dev - Port configuration and callback functions
 * @fwnode:	Pointer to port fwnode
 * @get_vbus:	Called to read current VBUS state
 * @get_current_limit:
 *		Optional; called by the tcpm core when configured as a snk
 *		and cc=Rp-def. This allows the tcpm to provide a fallback
 *		current-limit detection method for the cc=Rp-def case.
 *		For example, some tcpcs may include BC1.2 charger detection
 *		and use that in this case.
 * @set_cc:	Called to set value of CC pins
 * @apply_rc:	Optional; Needed to move TCPCI based chipset to APPLY_RC state
 *		as stated by the TCPCI specification.
 * @get_cc:	Called to read current CC pin values
 * @set_polarity:
 *		Called to set polarity
 * @set_vconn:	Called to enable or disable VCONN
 * @set_vbus:	Called to enable or disable VBUS
 * @set_current_limit:
 *		Optional; called to set current limit as negotiated
 *		with partner.
 * @set_pd_rx:	Called to enable or disable reception of PD messages
 * @set_roles:	Called to set power and data roles
 * @start_toggling:
 *		Optional; if supported by hardware, called to start dual-role
 *		toggling or single-role connection detection. Toggling stops
 *		automatically if a connection is established.
 * @try_role:	Optional; called to set a preferred role
 * @pd_transmit:Called to transmit PD message
 * @set_bist_data: Turn on/off bist data mode for compliance testing
 * @enable_frs:
 *		Optional; Called to enable/disable PD 3.0 fast role swap.
 *		Enabling frs is accessory dependent as not all PD3.0
 *		accessories support fast role swap.
 * @frs_sourcing_vbus:
 *		Optional; Called to notify that vbus is now being sourced.
 *		Low level drivers can perform chip specific operations, if any.
 * @enable_auto_vbus_discharge:
 *		Optional; TCPCI spec based TCPC implementations can optionally
 *		support hardware to autonomously dischrge vbus upon disconnecting
 *		as sink or source. TCPM signals TCPC to enable the mechanism upon
 *		entering connected state and signals disabling upon disconnect.
 * @set_auto_vbus_discharge_threshold:
 *		Mandatory when enable_auto_vbus_discharge is implemented. TCPM
 *		calls this function to allow lower levels drivers to program the
 *		vbus threshold voltage below which the vbus discharge circuit
 *		will be turned on. requested_vbus_voltage is set to 0 when vbus
 *		is going to disappear knowingly i.e. during PR_SWAP and
 *		HARD_RESET etc.
 * @is_vbus_vsafe0v:
 *		Optional; TCPCI spec based TCPC implementations are expected to
 *		detect VSAFE0V voltage level at vbus. When detection of VSAFE0V
 *		is supported by TCPC, set this callback for TCPM to query
 *		whether vbus is at VSAFE0V when needed.
 *		Returns true when vbus is at VSAFE0V, false otherwise.
 * @set_partner_usb_comm_capable:
 *              Optional; The USB Communications Capable bit indicates if port
 *              partner is capable of communication over the USB data lines
 *              (e.g. D+/- or SS Tx/Rx). Called to notify the status of the bit.
 */
struct tcpc_dev {
	struct fwnode_handle *fwnode;

int (*init)(struct tcpc_dev *dev);
	int (*get_vbus)(struct tcpc_dev *dev);
	int (*get_current_limit)(struct tcpc_dev *dev);
	int (*set_cc)(struct tcpc_dev *dev, enum typec_cc_status cc);
	int (*apply_rc)(struct tcpc_dev *dev, enum typec_cc_status cc,
			enum typec_cc_polarity polarity);
	int (*get_cc)(struct tcpc_dev *dev, enum typec_cc_status *cc1,
		      enum typec_cc_status *cc2);
	int (*set_polarity)(struct tcpc_dev *dev,
			    enum typec_cc_polarity polarity);
	int (*set_vconn)(struct tcpc_dev *dev, bool on);
	int (*set_vbus)(struct tcpc_dev *dev, bool on, bool charge);
	int (*set_current_limit)(struct tcpc_dev *dev, u32 max_ma, u32 mv);
	int (*set_pd_rx)(struct tcpc_dev *dev, bool on);
	int (*set_roles)(struct tcpc_dev *dev, bool attached,
			 enum typec_role role, enum typec_data_role data);
	int (*start_toggling)(struct tcpc_dev *dev,
			      enum typec_port_type port_type,
			      enum typec_cc_status cc);
	int (*try_role)(struct tcpc_dev *dev, int role);
	int (*pd_transmit)(struct tcpc_dev *dev, enum tcpm_transmit_type type,
			   const struct pd_message *msg, unsigned int negotiated_rev);
	int (*set_bist_data)(struct tcpc_dev *dev, bool on);
	int (*enable_frs)(struct tcpc_dev *dev, bool enable);
	void (*frs_sourcing_vbus)(struct tcpc_dev *dev);
	int (*enable_auto_vbus_discharge)(struct tcpc_dev *dev, bool enable);
	int (*set_auto_vbus_discharge_threshold)(struct tcpc_dev *dev, enum typec_pwr_opmode mode,
						 bool pps_active, u32 requested_vbus_voltage,
						 u32 pps_apdo_min_voltage);
	bool (*is_vbus_vsafe0v)(struct tcpc_dev *dev);
	void (*set_partner_usb_comm_capable)(struct tcpc_dev *dev, bool enable);
};

struct tcpm_port;

struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc);
void tcpm_unregister_port(struct tcpm_port *port);

void tcpm_vbus_change(struct tcpm_port *port);
void tcpm_cc_change(struct tcpm_port *port);
void tcpm_sink_frs(struct tcpm_port *port);
void tcpm_sourcing_vbus(struct tcpm_port *port);
void tcpm_pd_receive(struct tcpm_port *port,
		     const struct pd_message *msg);
void tcpm_pd_transmit_complete(struct tcpm_port *port,
			       enum tcpm_transmit_status status);
void tcpm_pd_hard_reset(struct tcpm_port *port);
void tcpm_tcpc_reset(struct tcpm_port *port);

#endif /* __LINUX_USB_TCPM_H */

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