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/* Copyright (c) 2009, Code Aurora Forum. All rights reserved.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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.
*
*/
#ifndef __ARCH_ARM_MACH_MSM_OTG_H
#define __ARCH_ARM_MACH_MSM_OTG_H
/*
* The otg driver needs to interact with both device side and host side
* usb controllers. it decides which controller is active at a given
* moment, using the transceiver, ID signal.
*/
struct msm_otg_transceiver {
struct device *dev;
struct clk *clk;
struct clk *pclk;
int in_lpm;
struct msm_otg_ops *dcd_ops;
struct msm_otg_ops *hcd_ops;
int irq;
int flags;
int state;
int active;
void __iomem *regs; /* device memory/io */
struct work_struct work;
spinlock_t lock;
/* bind/unbind the host controller */
int (*set_host)(struct msm_otg_transceiver *otg,
struct msm_otg_ops *hcd_ops);
/* bind/unbind the peripheral controller */
int (*set_peripheral)(struct msm_otg_transceiver *otg,
struct msm_otg_ops *dcd_ops);
void (*set_suspend) (int on);
};
struct msm_otg_ops {
void (*status_change)(int);
};
/* for usb host and peripheral controller drivers */
#ifdef CONFIG_USB_MSM_OTG
extern struct msm_otg_transceiver *msm_otg_get_transceiver(void);
extern void msm_otg_put_transceiver(struct msm_otg_transceiver *xceiv);
#else
static inline struct msm_otg_transceiver *msm_otg_get_transceiver(void)
{
return NULL;
}
static inline void msm_otg_put_transceiver(struct msm_otg_transceiver *xceiv)
{
}
#endif /*CONFIG_USB_MSM_OTG*/
#endif
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