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usb: renesas_usbhs: Add Renesas USBHS common code

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Renesas SuperH has USBHS IP which can switch Host / Function.
This driver is designed so that Host / Function may dynamically change.
This patch add usb/renesas_usbhs and common code for SuperH USBHS.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Kuninori Morimoto
2011-04-04 13:44:59 +09:00
committed by Greg Kroah-Hartman
parent a6360dd37e
commit f1407d5c66
11 changed files with 2145 additions and 0 deletions
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106
drivers/usb/renesas_usbhs/mod.h Normal file
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/*
* Renesas USB driver
*
* Copyright (C) 2011 Renesas Solutions Corp.
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#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;
u16 dvstctr;
};
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);
/* INTSTS0 :: CTRT (CTSQ) */
int (*irq_ctrl_stage)(struct usbhs_priv *priv,
struct usbhs_irq_state *irq_state);
/* INTSTS0 :: BEMP */
/* BEMPSTS */
int (*irq_empty)(struct usbhs_priv *priv,
struct usbhs_irq_state *irq_state);
u16 irq_bempsts;
/* INTSTS0 :: BRDY */
/* BRDYSTS */
int (*irq_ready)(struct usbhs_priv *priv,
struct usbhs_irq_state *irq_state);
u16 irq_brdysts;
struct usbhs_priv *priv;
};
struct usbhs_mod_info {
struct usbhs_mod *mod[USBHS_MAX];
struct usbhs_mod *curt; /* current mod */
};
/*
* 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, struct usbhs_mod *mod);
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);
/*
* status functions
*/
int usbhs_status_get_usb_speed(struct usbhs_irq_state *irq_state);
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); \
})
#endif /* RENESAS_USB_MOD_H */