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/* SPDX-License-Identifier: GPL-2.0-only
*
* Copyright (C) 2020-21 Intel Corporation.
*/
#ifndef IOSM_IPC_IMEM_OPS_H
#define IOSM_IPC_IMEM_OPS_H
#include "iosm_ipc_mux_codec.h"
/* Maximum wait time for blocking read */
#define IPC_READ_TIMEOUT 500
/* The delay in ms for defering the unregister */
#define SIO_UNREGISTER_DEFER_DELAY_MS 1
/* Default delay till CP PSI image is running and modem updates the
* execution stage.
* unit : milliseconds
*/
#define PSI_START_DEFAULT_TIMEOUT 3000
/* Default time out when closing SIO, till the modem is in
* running state.
* unit : milliseconds
*/
#define BOOT_CHECK_DEFAULT_TIMEOUT 400
/* IP MUX channel range */
#define IP_MUX_SESSION_START 0
#define IP_MUX_SESSION_END 7
/* Default IP MUX channel */
#define IP_MUX_SESSION_DEFAULT 0
/**
* ipc_imem_sys_port_open - Open a port link to CP.
* @ipc_imem: Imem instance.
* @chl_id: Channel Indentifier.
* @hp_id: HP Indentifier.
*
* Return: channel instance on success, NULL for failure
*/
struct ipc_mem_channel *ipc_imem_sys_port_open(struct iosm_imem *ipc_imem,
int chl_id, int hp_id);
/**
* ipc_imem_sys_cdev_close - Release a sio link to CP.
* @ipc_cdev: iosm sio instance.
*/
void ipc_imem_sys_cdev_close(struct iosm_cdev *ipc_cdev);
/**
* ipc_imem_sys_cdev_write - Route the uplink buffer to CP.
* @ipc_cdev: iosm_cdev instance.
* @skb: Pointer to skb.
*
* Return: 0 on success and failure value on error
*/
int ipc_imem_sys_cdev_write(struct iosm_cdev *ipc_cdev, struct sk_buff *skb);
/**
* ipc_imem_sys_wwan_open - Open packet data online channel between network
* layer and CP.
* @ipc_imem: Imem instance.
* @if_id: ip link tag of the net device.
*
* Return: Channel ID on success and failure value on error
*/
int ipc_imem_sys_wwan_open(struct iosm_imem *ipc_imem, int if_id);
/**
* ipc_imem_sys_wwan_close - Close packet data online channel between network
* layer and CP.
* @ipc_imem: Imem instance.
* @if_id: IP link id net device.
* @channel_id: Channel ID to be closed.
*/
void ipc_imem_sys_wwan_close(struct iosm_imem *ipc_imem, int if_id,
int channel_id);
/**
* ipc_imem_sys_wwan_transmit - Function for transfer UL data
* @ipc_imem: Imem instance.
* @if_id: link ID of the device.
* @channel_id: Channel ID used
* @skb: Pointer to sk buffer
*
* Return: 0 on success and failure value on error
*/
int ipc_imem_sys_wwan_transmit(struct iosm_imem *ipc_imem, int if_id,
int channel_id, struct sk_buff *skb);
/**
* ipc_imem_wwan_channel_init - Initializes WWAN channels and the channel for
* MUX.
* @ipc_imem: Pointer to iosm_imem struct.
* @mux_type: Type of mux protocol.
*/
void ipc_imem_wwan_channel_init(struct iosm_imem *ipc_imem,
enum ipc_mux_protocol mux_type);
#endif
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