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/*
* Copyright (C) 2016 Richtek Technology Corp.
*
* Power Delivery Policy Engine for UFP
*
* Author: TH <tsunghan_tsai@richtek.com>
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/hisi/usb/pd/richtek/pd_core.h>
#include <linux/hisi/usb/pd/richtek/pd_dpm_core.h>
#include <linux/hisi/usb/pd/richtek/tcpci.h>
#include <linux/hisi/usb/pd/richtek/pd_policy_engine.h>
/*
* [PD2.0] Figure 8-58 UFP Structured VDM Discover Identity State Diagram
*/
void pe_ufp_vdm_get_identity_entry(pd_port_t *pd_port, pd_event_t *pd_event)
{
pd_dpm_ufp_request_id_info(pd_port, pd_event);
}
void pe_ufp_vdm_send_identity_entry(pd_port_t *pd_port, pd_event_t *pd_event)
{
pd_dpm_ufp_response_id(pd_port, pd_event);
pd_free_pd_event(pd_port, pd_event);
}
void pe_ufp_vdm_get_identity_nak_entry(pd_port_t *pd_port, pd_event_t *pd_event)
{
pd_reply_svdm_request_simply(pd_port, pd_event, CMDT_RSP_NAK);
pd_free_pd_event(pd_port, pd_event);
}
/*
* [PD2.0] Figure 8-59 UFP Structured VDM Discover SVIDs State Diagram
*/
void pe_ufp_vdm_get_svids_entry(pd_port_t *pd_port, pd_event_t *pd_event)
{
pd_dpm_ufp_request_svid_info(pd_port, pd_event);
}
void pe_ufp_vdm_send_svids_entry(pd_port_t *pd_port, pd_event_t *pd_event)
{
pd_dpm_ufp_response_svids(pd_port, pd_event);
pd_free_pd_event(pd_port, pd_event);
}
void pe_ufp_vdm_get_svids_nak_entry(pd_port_t *pd_port, pd_event_t *pd_event)
{
pd_reply_svdm_request_simply(pd_port, pd_event, CMDT_RSP_NAK);
pd_free_pd_event(pd_port, pd_event);
}
/*
* [PD2.0] Figure 8-60 UFP Structured VDM Discover Modes State Diagram
*/
void pe_ufp_vdm_get_modes_entry(pd_port_t *pd_port, pd_event_t *pd_event)
{
pd_dpm_ufp_request_mode_info(pd_port, pd_event);
}
void pe_ufp_vdm_send_modes_entry(pd_port_t *pd_port, pd_event_t *pd_event)
{
pd_dpm_ufp_response_modes(pd_port, pd_event);
pd_free_pd_event(pd_port, pd_event);
}
void pe_ufp_vdm_get_modes_nak_entry(pd_port_t *pd_port, pd_event_t *pd_event)
{
pd_reply_svdm_request_simply(pd_port, pd_event, CMDT_RSP_NAK);
pd_free_pd_event(pd_port, pd_event);
}
/*
* [PD2.0] Figure 8-61 UFP Structured VDM Enter Mode State Diagram
*/
void pe_ufp_vdm_evaluate_mode_entry_entry(
pd_port_t *pd_port, pd_event_t *pd_event)
{
pd_dpm_ufp_request_enter_mode(pd_port, pd_event);
}
void pe_ufp_vdm_mode_entry_ack_entry(pd_port_t *pd_port, pd_event_t *pd_event)
{
pd_reply_svdm_request_simply(pd_port, pd_event, CMDT_RSP_ACK);
pd_free_pd_event(pd_port, pd_event);
}
void pe_ufp_vdm_mode_entry_nak_entry(pd_port_t *pd_port, pd_event_t *pd_event)
{
pd_reply_svdm_request_simply(pd_port, pd_event, CMDT_RSP_NAK);
pd_free_pd_event(pd_port, pd_event);
}
/*
* [PD2.0] Figure 8-62 UFP Structured VDM Exit Mode State Diagram
*/
void pe_ufp_vdm_mode_exit_entry(pd_port_t *pd_port, pd_event_t *pd_event)
{
pd_dpm_ufp_request_exit_mode(pd_port, pd_event);
}
void pe_ufp_vdm_mode_exit_ack_entry(pd_port_t *pd_port, pd_event_t *pd_event)
{
pd_reply_svdm_request_simply(pd_port, pd_event, CMDT_RSP_ACK);
pd_free_pd_event(pd_port, pd_event);
}
void pe_ufp_vdm_mode_exit_nak_entry(pd_port_t *pd_port, pd_event_t *pd_event)
{
pd_reply_svdm_request_simply(pd_port, pd_event, CMDT_RSP_NAK);
pd_free_pd_event(pd_port, pd_event);
}
/*
* [PD2.0] Figure 8-63 UFP VDM Attention State Diagram
*/
void pe_ufp_vdm_attention_request_entry(
pd_port_t *pd_port, pd_event_t *pd_event)
{
switch (pd_port->mode_svid) {
default:
pd_send_vdm_attention(pd_port,
TCPC_TX_SOP, pd_port->mode_svid,
pd_port->mode_obj_pos);
break;
}
pd_free_pd_event(pd_port, pd_event);
}
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