289fcff4bc
UTMI+ Low Pin Interface (ULPI) is a commonly used PHY interface for USB 2.0. The ULPI specification describes a standard set of registers which the vendors can extend for their specific needs. ULPI PHYs provide often functions such as charger detection and ADP sensing and probing. There are two major issues that the bus type is meant to tackle: Firstly, ULPI registers are accessed from the controller. The bus provides convenient method for the controller drivers to share that access with the actual PHY drivers. Secondly, there are already platforms that assume ULPI PHYs are runtime detected, such as many Intel Baytrail based platforms. They do not provide any kind of hardware description for the ULPI PHYs like separate ACPI device object that could be used to enumerate a device from. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Acked-by: David Cohen <david.a.cohen@linux.intel.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
71 lines
2 KiB
C
71 lines
2 KiB
C
/*
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* ulpi.h -- ULPI defines and function prorotypes
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*
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* Copyright (C) 2010 Nokia Corporation
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*
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* This software is distributed under the terms of the GNU General
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* Public License ("GPL") as published by the Free Software Foundation,
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* version 2 of that License.
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*/
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#ifndef __LINUX_USB_ULPI_H
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#define __LINUX_USB_ULPI_H
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#include <linux/usb/otg.h>
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#include <linux/ulpi/regs.h>
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/*-------------------------------------------------------------------------*/
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/*
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* ULPI Flags
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*/
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#define ULPI_OTG_ID_PULLUP (1 << 0)
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#define ULPI_OTG_DP_PULLDOWN_DIS (1 << 1)
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#define ULPI_OTG_DM_PULLDOWN_DIS (1 << 2)
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#define ULPI_OTG_DISCHRGVBUS (1 << 3)
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#define ULPI_OTG_CHRGVBUS (1 << 4)
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#define ULPI_OTG_DRVVBUS (1 << 5)
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#define ULPI_OTG_DRVVBUS_EXT (1 << 6)
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#define ULPI_OTG_EXTVBUSIND (1 << 7)
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#define ULPI_IC_6PIN_SERIAL (1 << 8)
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#define ULPI_IC_3PIN_SERIAL (1 << 9)
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#define ULPI_IC_CARKIT (1 << 10)
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#define ULPI_IC_CLKSUSPM (1 << 11)
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#define ULPI_IC_AUTORESUME (1 << 12)
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#define ULPI_IC_EXTVBUS_INDINV (1 << 13)
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#define ULPI_IC_IND_PASSTHRU (1 << 14)
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#define ULPI_IC_PROTECT_DIS (1 << 15)
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#define ULPI_FC_HS (1 << 16)
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#define ULPI_FC_FS (1 << 17)
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#define ULPI_FC_LS (1 << 18)
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#define ULPI_FC_FS4LS (1 << 19)
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#define ULPI_FC_TERMSEL (1 << 20)
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#define ULPI_FC_OP_NORM (1 << 21)
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#define ULPI_FC_OP_NODRV (1 << 22)
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#define ULPI_FC_OP_DIS_NRZI (1 << 23)
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#define ULPI_FC_OP_NSYNC_NEOP (1 << 24)
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#define ULPI_FC_RST (1 << 25)
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#define ULPI_FC_SUSPM (1 << 26)
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/*-------------------------------------------------------------------------*/
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#if IS_ENABLED(CONFIG_USB_ULPI)
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struct usb_phy *otg_ulpi_create(struct usb_phy_io_ops *ops,
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unsigned int flags);
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#else
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static inline struct usb_phy *otg_ulpi_create(struct usb_phy_io_ops *ops,
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unsigned int flags)
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{
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return NULL;
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}
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#endif
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#ifdef CONFIG_USB_ULPI_VIEWPORT
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/* access ops for controllers with a viewport register */
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extern struct usb_phy_io_ops ulpi_viewport_access_ops;
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#endif
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#endif /* __LINUX_USB_ULPI_H */
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