cros_ec_typec.h

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2
 3#ifndef __CROS_EC_TYPEC__
 4#define __CROS_EC_TYPEC__
 5
 6#include <linux/list.h>
 7#include <linux/notifier.h>
 8#include <linux/platform_data/cros_ec_proto.h>
 9#include <linux/usb/pd.h>
10#include <linux/usb/role.h>
11#include <linux/usb/typec.h>
12#include <linux/usb/typec_altmode.h>
13#include <linux/usb/typec_mux.h>
14#include <linux/usb/typec_retimer.h>
15#include <linux/workqueue.h>
16
17/* Supported alt modes. */
18enum {
19	CROS_EC_ALTMODE_DP = 0,
20	CROS_EC_ALTMODE_TBT,
21	CROS_EC_ALTMODE_USB4,
22	CROS_EC_ALTMODE_MAX,
23};
24
25/* Container for altmode pointer nodes. */
26struct cros_typec_altmode_node {
27	struct typec_altmode *amode;
28	struct list_head list;
29};
30
31/* Platform-specific data for the Chrome OS EC Type C controller. */
32struct cros_typec_data {
33	struct device *dev;
34	struct cros_ec_device *ec;
35	int num_ports;
36	unsigned int pd_ctrl_ver;
37	/* Array of ports, indexed by port number. */
38	struct cros_typec_port *ports[EC_USB_PD_MAX_PORTS];
39	struct notifier_block nb;
40	struct work_struct port_work;
41	bool typec_cmd_supported;
42	bool needs_mux_ack;
43	bool ap_driven_altmode;
44};
45
46/* Per port data. */
47struct cros_typec_port {
48	struct typec_port *port;
49	int port_num;
50	/* Initial capabilities for the port. */
51	struct typec_capability caps;
52	struct typec_partner *partner;
53	struct typec_cable *cable;
54	/* SOP' plug. */
55	struct typec_plug *plug;
56	/* Port partner PD identity info. */
57	struct usb_pd_identity p_identity;
58	/* Port cable PD identity info. */
59	struct usb_pd_identity c_identity;
60	struct typec_switch *ori_sw;
61	struct typec_mux *mux;
62	struct typec_retimer *retimer;
63	struct usb_role_switch *role_sw;
64
65	/* Variables keeping track of switch state. */
66	struct typec_mux_state state;
67	uint8_t mux_flags;
68	uint8_t role;
69
70	struct typec_altmode *port_altmode[CROS_EC_ALTMODE_MAX];
71
72	/* Flag indicating that PD partner discovery data parsing is completed. */
73	bool sop_disc_done;
74	bool sop_prime_disc_done;
75	struct ec_response_typec_discovery *disc_data;
76	struct list_head partner_mode_list;
77	struct list_head plug_mode_list;
78
79	/* PDO-related structs */
80	struct usb_power_delivery *partner_pd;
81	struct usb_power_delivery_capabilities *partner_src_caps;
82	struct usb_power_delivery_capabilities *partner_sink_caps;
83
84	struct cros_typec_data *typec_data;
85};
86
87#endif /*  __CROS_EC_TYPEC__ */