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/* Copyright 2020 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* Host commands for USB-PD module.
*/
#include <string.h>
#include "console.h"
#include "ec_commands.h"
#include "host_command.h"
#include "tcpm.h"
#include "usb_pd.h"
#include "usb_pd_tcpm.h"
#ifdef CONFIG_COMMON_RUNTIME
struct ec_params_usb_pd_rw_hash_entry rw_hash_table[RW_HASH_ENTRIES];
#define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args)
#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args)
#else /* CONFIG_COMMON_RUNTIME */
#define CPRINTF(format, args...)
#define CPRINTS(format, args...)
#endif /* CONFIG_COMMON_RUNTIME */
#ifdef HAS_TASK_HOSTCMD
static enum ec_status hc_pd_ports(struct host_cmd_handler_args *args)
{
struct ec_response_usb_pd_ports *r = args->response;
r->num_ports = board_get_usb_pd_port_count();
args->response_size = sizeof(*r);
return EC_RES_SUCCESS;
}
DECLARE_HOST_COMMAND(EC_CMD_USB_PD_PORTS,
hc_pd_ports,
EC_VER_MASK(0));
#ifdef CONFIG_HOSTCMD_RWHASHPD
static enum ec_status
hc_remote_rw_hash_entry(struct host_cmd_handler_args *args)
{
int i, idx = 0, found = 0;
const struct ec_params_usb_pd_rw_hash_entry *p = args->params;
static int rw_hash_next_idx;
if (!p->dev_id)
return EC_RES_INVALID_PARAM;
for (i = 0; i < RW_HASH_ENTRIES; i++) {
if (p->dev_id == rw_hash_table[i].dev_id) {
idx = i;
found = 1;
break;
}
}
if (!found) {
idx = rw_hash_next_idx;
rw_hash_next_idx = rw_hash_next_idx + 1;
if (rw_hash_next_idx == RW_HASH_ENTRIES)
rw_hash_next_idx = 0;
}
memcpy(&rw_hash_table[idx], p, sizeof(*p));
return EC_RES_SUCCESS;
}
DECLARE_HOST_COMMAND(EC_CMD_USB_PD_RW_HASH_ENTRY,
hc_remote_rw_hash_entry,
EC_VER_MASK(0));
#endif /* CONFIG_HOSTCMD_RWHASHPD */
#ifndef CONFIG_USB_PD_TCPC
#ifdef CONFIG_EC_CMD_PD_CHIP_INFO
static enum ec_status hc_remote_pd_chip_info(struct host_cmd_handler_args *args)
{
const struct ec_params_pd_chip_info *p = args->params;
struct ec_response_pd_chip_info_v1 *info;
if (p->port >= board_get_usb_pd_port_count())
return EC_RES_INVALID_PARAM;
if (tcpm_get_chip_info(p->port, p->live, &info))
return EC_RES_ERROR;
/*
* Take advantage of the fact that v0 and v1 structs have the
* same layout for v0 data. (v1 just appends data)
*/
args->response_size =
args->version ? sizeof(struct ec_response_pd_chip_info_v1)
: sizeof(struct ec_response_pd_chip_info);
memcpy(args->response, info, args->response_size);
return EC_RES_SUCCESS;
}
DECLARE_HOST_COMMAND(EC_CMD_PD_CHIP_INFO,
hc_remote_pd_chip_info,
EC_VER_MASK(0) | EC_VER_MASK(1));
#endif /* CONFIG_EC_CMD_PD_CHIP_INFO */
#endif /* CONFIG_USB_PD_TCPC */
#ifdef CONFIG_USB_PD_ALT_MODE_DFP
static enum ec_status hc_remote_pd_set_amode(struct host_cmd_handler_args *args)
{
const struct ec_params_usb_pd_set_mode_request *p = args->params;
if ((p->port >= board_get_usb_pd_port_count()) ||
(!p->svid) || (!p->opos))
return EC_RES_INVALID_PARAM;
switch (p->cmd) {
case PD_EXIT_MODE:
if (pd_dfp_exit_mode(p->port, p->svid, p->opos))
pd_send_vdm(p->port, p->svid,
CMD_EXIT_MODE | VDO_OPOS(p->opos), NULL, 0);
else {
CPRINTF("Failed exit mode\n");
return EC_RES_ERROR;
}
break;
case PD_ENTER_MODE:
if (pd_dfp_enter_mode(p->port, p->svid, p->opos))
pd_send_vdm(p->port, p->svid, CMD_ENTER_MODE |
VDO_OPOS(p->opos), NULL, 0);
break;
default:
return EC_RES_INVALID_PARAM;
}
return EC_RES_SUCCESS;
}
DECLARE_HOST_COMMAND(EC_CMD_USB_PD_SET_AMODE,
hc_remote_pd_set_amode,
EC_VER_MASK(0));
static enum ec_status hc_remote_pd_discovery(struct host_cmd_handler_args *args)
{
const uint8_t *port = args->params;
struct ec_params_usb_pd_discovery_entry *r = args->response;
if (*port >= board_get_usb_pd_port_count())
return EC_RES_INVALID_PARAM;
r->vid = pd_get_identity_vid(*port);
r->ptype = pd_get_product_type(*port);
/* pid only included if vid is assigned */
if (r->vid)
r->pid = pd_get_identity_pid(*port);
args->response_size = sizeof(*r);
return EC_RES_SUCCESS;
}
DECLARE_HOST_COMMAND(EC_CMD_USB_PD_DISCOVERY,
hc_remote_pd_discovery,
EC_VER_MASK(0));
static enum ec_status hc_remote_pd_get_amode(struct host_cmd_handler_args *args)
{
struct svdm_amode_data *modep;
const struct ec_params_usb_pd_get_mode_request *p = args->params;
struct ec_params_usb_pd_get_mode_response *r = args->response;
if (p->port >= board_get_usb_pd_port_count())
return EC_RES_INVALID_PARAM;
/* no more to send */
if (p->svid_idx >= pd_get_svid_count(p->port)) {
r->svid = 0;
args->response_size = sizeof(r->svid);
return EC_RES_SUCCESS;
}
r->svid = pd_get_svid(p->port, p->svid_idx);
r->opos = 0;
memcpy(r->vdo, pd_get_mode_vdo(p->port, p->svid_idx),
sizeof(uint32_t) * PDO_MODES);
modep = pd_get_amode_data(p->port, r->svid);
if (modep)
r->opos = pd_alt_mode(p->port, r->svid);
args->response_size = sizeof(*r);
return EC_RES_SUCCESS;
}
DECLARE_HOST_COMMAND(EC_CMD_USB_PD_GET_AMODE,
hc_remote_pd_get_amode,
EC_VER_MASK(0));
#endif /* CONFIG_USB_PD_ALT_MODE_DFP */
#ifdef CONFIG_COMMON_RUNTIME
static enum ec_status hc_remote_pd_dev_info(struct host_cmd_handler_args *args)
{
const uint8_t *port = args->params;
struct ec_params_usb_pd_rw_hash_entry *r = args->response;
uint16_t dev_id;
uint32_t current_image;
if (*port >= board_get_usb_pd_port_count())
return EC_RES_INVALID_PARAM;
pd_dev_get_rw_hash(*port, &dev_id, r->dev_rw_hash, ¤t_image);
r->dev_id = dev_id;
r->current_image = current_image;
args->response_size = sizeof(*r);
return EC_RES_SUCCESS;
}
DECLARE_HOST_COMMAND(EC_CMD_USB_PD_DEV_INFO,
hc_remote_pd_dev_info,
EC_VER_MASK(0));
#endif /* CONFIG_COMMON_RUNTIME */
#endif /* HAS_TASK_HOSTCMD */
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