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/* ==========================================================================
* $File: //dwh/usb_iip/dev/software/otg/linux/platform/dwc_otg_plat.h $
* $Revision: #23 $
* $Date: 2008/07/15 $
* $Change: 1064915 $
*
* Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
* "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
* otherwise expressly agreed to in writing between Synopsys and you.
*
* The Software IS NOT an item of Licensed Software or Licensed Product under
* any End User Software License Agreement or Agreement for Licensed Product
* with Synopsys or any supplement thereto. You are permitted to use and
* redistribute this Software in source and binary forms, with or without
* modification, provided that redistributions of source code must retain this
* notice. You may not view, use, disclose, copy or distribute this file or
* any information contained herein except pursuant to this license grant from
* Synopsys. If you do not agree with this notice, including the disclaimer
* below, then you are not authorized to use the Software.
*
* THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
* ========================================================================== */
#if !defined(__DWC_OTG_PLAT_H__)
#define __DWC_OTG_PLAT_H__
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/list.h>
#include <linux/delay.h>
#include <asm/io.h>
/* Changed all readl and writel to __raw_readl, __raw_writel */
/**
* @file
*
* This file contains the Platform Specific constants, interfaces
* (functions and macros) for Linux.
*
*/
//#if !defined(__LINUX_ARM_ARCH__)
//#error "The contents of this file is Linux specific!!!"
//#endif
/**
* Reads the content of a register.
*
* @param reg address of register to read.
* @return contents of the register.
*
* Usage:<br>
* <code>uint32_t dev_ctl = dwc_read_reg32(&dev_regs->dctl);</code>
*/
static __inline__ uint32_t dwc_read_reg32( volatile uint32_t *reg)
{
return __raw_readl(reg);
// return readl(reg);
};
/**
* Writes a register with a 32 bit value.
*
* @param reg address of register to read.
* @param value to write to _reg.
*
* Usage:<br>
* <code>dwc_write_reg32(&dev_regs->dctl, 0); </code>
*/
static __inline__ void dwc_write_reg32( volatile uint32_t *reg, const uint32_t value)
{
// writel( value, reg );
__raw_writel(value, reg);
};
/**
* This function modifies bit values in a register. Using the
* algorithm: (reg_contents & ~clear_mask) | set_mask.
*
* @param reg address of register to read.
* @param clear_mask bit mask to be cleared.
* @param set_mask bit mask to be set.
*
* Usage:<br>
* <code> // Clear the SOF Interrupt Mask bit and <br>
* // set the OTG Interrupt mask bit, leaving all others as they were.
* dwc_modify_reg32(&dev_regs->gintmsk, DWC_SOF_INT, DWC_OTG_INT);</code>
*/
static __inline__
void dwc_modify_reg32( volatile uint32_t *reg, const uint32_t clear_mask, const uint32_t set_mask)
{
// writel( (readl(reg) & ~clear_mask) | set_mask, reg );
__raw_writel( (__raw_readl(reg) & ~clear_mask) | set_mask, reg );
};
/**
* Wrapper for the OS micro-second delay function.
* @param[in] usecs Microseconds of delay
*/
static __inline__ void UDELAY( const uint32_t usecs )
{
udelay( usecs );
}
/**
* Wrapper for the OS milli-second delay function.
* @param[in] msecs milliseconds of delay
*/
static __inline__ void MDELAY( const uint32_t msecs )
{
mdelay( msecs );
}
/**
* Wrapper for the Linux spin_lock. On the ARM (Integrator)
* spin_lock() is a nop.
*
* @param lock Pointer to the spinlock.
*/
static __inline__ void SPIN_LOCK( spinlock_t *lock )
{
spin_lock(lock);
}
/**
* Wrapper for the Linux spin_unlock. On the ARM (Integrator)
* spin_lock() is a nop.
*
* @param lock Pointer to the spinlock.
*/
static __inline__ void SPIN_UNLOCK( spinlock_t *lock )
{
spin_unlock(lock);
}
/**
* Wrapper (macro) for the Linux spin_lock_irqsave. On the ARM
* (Integrator) spin_lock() is a nop.
*
* @param l Pointer to the spinlock.
* @param f unsigned long for irq flags storage.
*/
#define SPIN_LOCK_IRQSAVE( l, f ) spin_lock_irqsave(l,f);
/**
* Wrapper (macro) for the Linux spin_unlock_irqrestore. On the ARM
* (Integrator) spin_lock() is a nop.
*
* @param l Pointer to the spinlock.
* @param f unsigned long for irq flags storage.
*/
#define SPIN_UNLOCK_IRQRESTORE( l,f ) spin_unlock_irqrestore(l,f);
/*
* Debugging support vanishes in non-debug builds.
*/
/**
* The Debug Level bit-mask variable.
*/
extern uint32_t g_dbg_lvl;
/**
* Set the Debug Level variable.
*/
static inline uint32_t SET_DEBUG_LEVEL( const uint32_t new )
{
uint32_t old = g_dbg_lvl;
g_dbg_lvl = new;
return old;
}
/** When debug level has the DBG_CIL bit set, display CIL Debug messages. */
#define DBG_CIL (0x2)
/** When debug level has the DBG_CILV bit set, display CIL Verbose debug
* messages */
#define DBG_CILV (0x20)
/** When debug level has the DBG_PCD bit set, display PCD (Device) debug
* messages */
#define DBG_PCD (0x4)
/** When debug level has the DBG_PCDV set, display PCD (Device) Verbose debug
* messages */
#define DBG_PCDV (0x40)
/** When debug level has the DBG_HCD bit set, display Host debug messages */
#define DBG_HCD (0x8)
/** When debug level has the DBG_HCDV bit set, display Verbose Host debug
* messages */
#define DBG_HCDV (0x80)
/** When debug level has the DBG_HCD_URB bit set, display enqueued URBs in host
* mode. */
#define DBG_HCD_URB (0x800)
#define DBG_HCD_FLOOD (0x1)
/** When debug level has any bit set, display debug messages */
#define DBG_ANY (0xFF)
/** All debug messages off */
#define DBG_OFF 0
/** Prefix string for DWC_DEBUG print macros. */
#define USB_DWC "DWC_otg: "
/**
* Print a debug message when the Global debug level variable contains
* the bit defined in <code>lvl</code>.
*
* @param[in] lvl - Debug level, use one of the DBG_ constants above.
* @param[in] x - like printf
*
* Example:<p>
* <code>
* DWC_DEBUGPL( DBG_ANY, "%s(%p)\n", __func__, _reg_base_addr);
* </code>
* <br>
* results in:<br>
* <code>
* usb-DWC_otg: dwc_otg_cil_init(ca867000)
* </code>
*/
#ifdef DEBUG
# define DWC_DEBUGPL(lvl, x...) do{ if ((lvl)&g_dbg_lvl)printk( KERN_DEBUG USB_DWC x ); }while(0)
# define DWC_DEBUGP(x...) DWC_DEBUGPL(DBG_ANY, x )
# define CHK_DEBUG_LEVEL(level) ((level) & g_dbg_lvl)
#else
# define DWC_DEBUGPL(lvl, x...) do{}while(0)
# define DWC_DEBUGP(x...)
# define CHK_DEBUG_LEVEL(level) (0)
#endif /*DEBUG*/
/**
* Print an Error message.
*/
#define DWC_ERROR(x...) printk( KERN_ERR USB_DWC x )
/**
* Print a Warning message.
*/
#define DWC_WARN(x...) printk( KERN_WARNING USB_DWC x )
/**
* Print a notice (normal but significant message).
*/
#define DWC_NOTICE(x...) printk( KERN_NOTICE USB_DWC x )
/**
* Basic message printing.
*/
#define DWC_PRINT(x...) printk( KERN_INFO USB_DWC x )
#endif