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/* SPDX-License-Identifier: GPL-1.0+ */
/*
* Renesas USB driver
*
* Copyright (C) 2011 Renesas Solutions Corp.
* Copyright (C) 2019 Renesas Electronics Corporation
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
*/
#ifndef RENESAS_USB_MOD_H
#define RENESAS_USB_MOD_H
#include <linux/spinlock.h>
#include <linux/usb/renesas_usbhs.h>
#include "common.h"
/*
* struct
*/
struct usbhs_irq_state {
u16 intsts0;
u16 intsts1;
u16 brdysts;
u16 nrdysts;
u16 bempsts;
};
struct usbhs_mod {
char *name;
/*
* entry point from common.c
*/
int (*start)(struct usbhs_priv *priv);
int (*stop)(struct usbhs_priv *priv);
/*
* INTSTS0
*/
/* DVST (DVSQ) */
int (*irq_dev_state)(struct usbhs_priv *priv,
struct usbhs_irq_state *irq_state);
/* CTRT (CTSQ) */
int (*irq_ctrl_stage)(struct usbhs_priv *priv,
struct usbhs_irq_state *irq_state);
/* BEMP / BEMPSTS */
int (*irq_empty)(struct usbhs_priv *priv,
struct usbhs_irq_state *irq_state);
u16 irq_bempsts;
/* BRDY / BRDYSTS */
int (*irq_ready)(struct usbhs_priv *priv,
struct usbhs_irq_state *irq_state);
u16 irq_brdysts;
/*
* INTSTS1
*/
/* ATTCHE */
int (*irq_attch)(struct usbhs_priv *priv,
struct usbhs_irq_state *irq_state);
/* DTCHE */
int (*irq_dtch)(struct usbhs_priv *priv,
struct usbhs_irq_state *irq_state);
/* SIGN */
int (*irq_sign)(struct usbhs_priv *priv,
struct usbhs_irq_state *irq_state);
/* SACK */
int (*irq_sack)(struct usbhs_priv *priv,
struct usbhs_irq_state *irq_state);
struct usbhs_priv *priv;
};
struct usbhs_mod_info {
struct usbhs_mod *mod[USBHS_MAX];
struct usbhs_mod *curt; /* current mod */
/*
* INTSTS0 :: VBINT
*
* This function will be used as autonomy mode (runtime_pwctrl == 0)
* when the platform doesn't have own get_vbus function.
*
* This callback cannot be member of "struct usbhs_mod" because it
* will be used even though host/gadget has not been selected.
*/
int (*irq_vbus)(struct usbhs_priv *priv,
struct usbhs_irq_state *irq_state);
/*
* This function will be used on any gadget mode. To simplify the code,
* this member is in here.
*/
int (*get_vbus)(struct platform_device *pdev);
};
/*
* for host/gadget module
*/
struct usbhs_mod *usbhs_mod_get(struct usbhs_priv *priv, int id);
struct usbhs_mod *usbhs_mod_get_current(struct usbhs_priv *priv);
void usbhs_mod_register(struct usbhs_priv *priv, struct usbhs_mod *usb, int id);
int usbhs_mod_is_host(struct usbhs_priv *priv);
int usbhs_mod_change(struct usbhs_priv *priv, int id);
int usbhs_mod_probe(struct usbhs_priv *priv);
void usbhs_mod_remove(struct usbhs_priv *priv);
void usbhs_mod_autonomy_mode(struct usbhs_priv *priv);
void usbhs_mod_non_autonomy_mode(struct usbhs_priv *priv);
/*
* status functions
*/
int usbhs_status_get_device_state(struct usbhs_irq_state *irq_state);
int usbhs_status_get_ctrl_stage(struct usbhs_irq_state *irq_state);
/*
* callback functions
*/
void usbhs_irq_callback_update(struct usbhs_priv *priv, struct usbhs_mod *mod);
#define usbhs_mod_call(priv, func, param...) \
({ \
struct usbhs_mod *mod; \
mod = usbhs_mod_get_current(priv); \
!mod ? -ENODEV : \
!mod->func ? 0 : \
mod->func(param); \
})
#define usbhs_priv_to_modinfo(priv) (&priv->mod_info)
#define usbhs_mod_info_call(priv, func, param...) \
({ \
struct usbhs_mod_info *info; \
info = usbhs_priv_to_modinfo(priv); \
!info->func ? 0 : \
info->func(param); \
})
/*
* host / gadget control
*/
#if defined(CONFIG_USB_RENESAS_USBHS_HCD) || \
defined(CONFIG_USB_RENESAS_USBHS_HCD_MODULE)
extern int usbhs_mod_host_probe(struct usbhs_priv *priv);
extern int usbhs_mod_host_remove(struct usbhs_priv *priv);
#else
static inline int usbhs_mod_host_probe(struct usbhs_priv *priv)
{
return 0;
}
static inline void usbhs_mod_host_remove(struct usbhs_priv *priv)
{
}
#endif
#if defined(CONFIG_USB_RENESAS_USBHS_UDC) || \
defined(CONFIG_USB_RENESAS_USBHS_UDC_MODULE)
extern int usbhs_mod_gadget_probe(struct usbhs_priv *priv);
extern void usbhs_mod_gadget_remove(struct usbhs_priv *priv);
#else
static inline int usbhs_mod_gadget_probe(struct usbhs_priv *priv)
{
return 0;
}
static inline void usbhs_mod_gadget_remove(struct usbhs_priv *priv)
{
}
#endif
#endif /* RENESAS_USB_MOD_H */
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