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/* linux/include/asm-arm/arch-msm/hsusb.h
*
* Copyright (C) 2008 Google, Inc.
* Author: Brian Swetland <swetland@google.com>
* Copyright (c) 2009-2010, 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 __ASM_ARCH_MSM_HSUSB_H
#define __ASM_ARCH_MSM_HSUSB_H
#include <linux/types.h>
#include <linux/usb/otg.h>
/**
* Supported USB modes
*
* USB_PERIPHERAL Only peripheral mode is supported.
* USB_HOST Only host mode is supported.
* USB_OTG OTG mode is supported.
*
*/
enum usb_mode_type {
USB_NONE = 0,
USB_PERIPHERAL,
USB_HOST,
USB_OTG,
};
/**
* OTG control
*
* OTG_NO_CONTROL Id/VBUS notifications not required. Useful in host
* only configuration.
* OTG_PHY_CONTROL Id/VBUS notifications comes form USB PHY.
* OTG_PMIC_CONTROL Id/VBUS notifications comes from PMIC hardware.
* OTG_USER_CONTROL Id/VBUS notifcations comes from User via sysfs.
*
*/
enum otg_control_type {
OTG_NO_CONTROL = 0,
OTG_PHY_CONTROL,
OTG_PMIC_CONTROL,
OTG_USER_CONTROL,
};
/**
* struct msm_otg_platform_data - platform device data
* for msm_otg driver.
* @phy_init_seq: PHY configuration sequence. val, reg pairs
* terminated by -1.
* @vbus_power: VBUS power on/off routine.
* @power_budget: VBUS power budget in mA (0 will be treated as 500mA).
* @mode: Supported mode (OTG/peripheral/host).
* @otg_control: OTG switch controlled by user/Id pin
* @default_mode: Default operational mode. Applicable only if
* OTG switch is controller by user.
*
*/
struct msm_otg_platform_data {
int *phy_init_seq;
void (*vbus_power)(bool on);
unsigned power_budget;
enum usb_mode_type mode;
enum otg_control_type otg_control;
enum usb_mode_type default_mode;
void (*setup_gpio)(enum usb_otg_state state);
};
/**
* struct msm_otg: OTG driver data. Shared by HCD and DCD.
* @otg: USB OTG Transceiver structure.
* @pdata: otg device platform data.
* @irq: IRQ number assigned for HSUSB controller.
* @clk: clock struct of usb_hs_clk.
* @pclk: clock struct of usb_hs_pclk.
* @phy_reset_clk: clock struct of usb_phy_clk.
* @core_clk: clock struct of usb_hs_core_clk.
* @regs: ioremapped register base address.
* @inputs: OTG state machine inputs(Id, SessValid etc).
* @sm_work: OTG state machine work.
* @in_lpm: indicates low power mode (LPM) state.
* @async_int: Async interrupt arrived.
*
*/
struct msm_otg {
struct otg_transceiver otg;
struct msm_otg_platform_data *pdata;
int irq;
struct clk *clk;
struct clk *pclk;
struct clk *phy_reset_clk;
struct clk *core_clk;
void __iomem *regs;
#define ID 0
#define B_SESS_VLD 1
unsigned long inputs;
struct work_struct sm_work;
atomic_t in_lpm;
int async_int;
};
#endif
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