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__ */
88

source code of linux/drivers/platform/chrome/cros_ec_typec.h