79 lines
2.0 KiB
C
79 lines
2.0 KiB
C
/* Copyright (c) 2009, The Linux Foundation. All rights reserved.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __ARCH_ARM_MACH_MSM_OTG_H
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#define __ARCH_ARM_MACH_MSM_OTG_H
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#include <linux/workqueue.h>
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#include <linux/wakelock.h>
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/*
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* The otg driver needs to interact with both device side and host side
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* usb controllers. it decides which controller is active at a given
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* moment, using the transceiver, ID signal.
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*/
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struct msm_otg_transceiver {
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struct device *dev;
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struct clk *clk;
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struct clk *pclk;
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int in_lpm;
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struct msm_otg_ops *dcd_ops;
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struct msm_otg_ops *hcd_ops;
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int irq;
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int flags;
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int state;
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int active;
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void __iomem *regs; /* device memory/io */
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struct work_struct work;
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spinlock_t lock;
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struct wake_lock wlock;
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/* bind/unbind the host controller */
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int (*set_host)(struct msm_otg_transceiver *otg,
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struct msm_otg_ops *hcd_ops);
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/* bind/unbind the peripheral controller */
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int (*set_peripheral)(struct msm_otg_transceiver *otg,
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struct msm_otg_ops *dcd_ops);
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int (*set_suspend)(struct msm_otg_transceiver *otg,
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int suspend);
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};
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struct msm_otg_ops {
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void (*request)(void *, int);
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void *handle;
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};
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/* for usb host and peripheral controller drivers */
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#ifdef CONFIG_USB_MSM_OTG
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extern struct msm_otg_transceiver *msm_otg_get_transceiver(void);
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extern void msm_otg_put_transceiver(struct msm_otg_transceiver *xceiv);
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#else
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static inline struct msm_otg_transceiver *msm_otg_get_transceiver(void)
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{
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return NULL;
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}
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static inline void msm_otg_put_transceiver(struct msm_otg_transceiver *xceiv)
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{
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}
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#endif /*CONFIG_USB_MSM_OTG*/
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#endif
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