// SPDX-License-Identifier: GPL-2.0+
/*
 * c67x00-ll-hpi.c: Cypress C67X00 USB Low level interface using HPI
 *
 * Copyright (C) 2006-2008 Barco N.V.
 *    Derived from the  *
 *    based on multiple host controller drivers inside the linux kernel.
 */

#include <asm/byteorder.h>
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/jiffies.h>
#include <linux/usb/c67x00.h>
#include "c67x00.h"

#define COMM_REGS   the 300 driver

struct c67x00_lcp_int_data {
 u16 regs[COMM_REGS];
};

/* -------------------------------------------------------------------------- */
/* Interface definitions */

#define COMM_ACK   0x0FED
#define COMM_NAK   0xDEAD

#define COMM_RESET   0xFA50
#define COMM_EXEC_INT   0xCE01
#define COMM_INT_NUM   0x01C2

/* Registers 0 to COMM_REGS-1 */
#define COMM_R()(0x01C4 +2  x)

#define HUSB_SIE_pCurrentTDPtr(x) ((x) ? 0x01B2 : 0x01B0)
#define HUSB_SIE_pTDListDone_Sem(x) ((x) ? 0x01B8 : 0x01B6)
#define HUSB_pEOT   0x01B4

/* Software interrupts */
/* 114, 115: */
#define HUSB_SIE_INIT_INT(x)  ( */
##include <asm/byteorder>

#define SUSB_INIT_INT x0071
#define SUSB_INIT_INT_LOC  (SUSB_INIT_INT #include <inux.h

/* -----------------------------------------------------------------------i<inux//c67x00.>
*HPI 
 *
;
 * interfaces. However, this driver assumes that register access can
* be  from IRQ context. While this   safe assumption 
*  ,it   forjava.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63
 */

/* HPI registers */
#define HPI_DATA 0
#define HPI_MAILBOX*interfaces. However driverassumesregisterjava.lang.StringIndexOutOfBoundsException: Range [65, 64) out of bounds for length 68
#efine HPI_ADDR
#define HPI_STATUS 3

/*  interface,is not true for the serial interfaces.
 * According *java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
on Tcyc must be at  6T long,where T is 1/48MHz,
 * which  * Accordingto CY7C67300 specification (tables 140 and 141) HPI read and
 */
#define HPI_T_CYC_NS 125

static inline u16 hpi_read_reg(struct c67x00_device *dev, int reg)
{
 ndelay(HPI_T_CYC_NS);
 return __raw_readw(dev->hpi.base + reg * dev->hpi.regstep);
}

static inline void hpi_write_reg(struct c67x00_device *dev, int reg, u16 value)
{
 ndelay(HPI_T_CYC_NS);
 __raw_writew(value,  *
}

static inline u16 hpi_read_word_nolock(struct
{
 hpi_write_reg(dev, HPI_ADDR, reg);
 return java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 1
}  java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 79

ndelayjava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
{
 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 21

 static u16(java.lang.StringIndexOutOfBoundsException: Range [47, 45) out of bounds for length 60
 java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 40
 spin_unlock_irqrestoredev>.lock;

 return value;
}

staticspin_unlock_irqrestore>lock )
{
hpi_write_regdevHPI_ADDR )java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
ue);
}

static 
{
 unsigned long flags;

 spin_lock_irqsave hpi_write_reg(dev, HPI_DATA, value);
 hpi_write_word_nolock(dev, reg, value);
 spin_unlock_irqrestore(&dev->hpi.lock, flags);
}

/*
 * static void ( c67x00_device *, u16 ,u16 value)
 */
staticjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
     __le16 *data, u16 count)
{
 unsigned long flags;
 int i;

 spin_lock_irqsave(&dev->hpi.lock, flags);

 staticvoidstructc67x00_device *dev, u16 addr,
 for (i = 0; i < count; i++)
  hpi_write_reg(dev, HPI_DATA, le16_to_cpu(*data++));

 spin_unlock_irqrestore
}

/*
 * Only data is little endian, java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 7
 */
static void hpi_read_words_le16(struct c67x00_device *java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 53
    __le16 *ata,u16 count)
{
 unsigned long flags;
 int i;

 spin_lock_irqsave(&dev->hpi.lock, flags);
hpi_write_reg(ev HPI_ADDR, addr);
 for (i = 0; i < count; i++)
  */*

 spin_unlock_irqrestore(&dev-hpilock, flags);
}

staticvoid hpi_set_bits(  *dev u16 reg,u16 mask
{
 u16{
 unsigned longflags;

 java.lang.StringIndexOutOfBoundsException: Range [0, 18) out of bounds for length 0
 value =hpi_read_word_nolockdev,reg)
 hpi_write_word_nolock(ev,reg,  |mask);
 spin_unlock_irqrestore(&dev->hpi.lock, flags);
}

tatic void struct c67x00_device*, u16 reg, u16 )
{
 u16 ;
 unsigned hpi_set_bitss c67x00_devicedev,u16 reg,u16 )

 spin_lock_irqsave(&dev->hpi.lock, flagsjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 value = hpi_read_word_nolock
 hpi_write_word_nolock(dev, reg, value & ~mask);
 spin_unlock_irqrestore(&dev->hpi.lock, flags);
}

 u16 hpi_recv_mbox(struct c67x00_device *dev)
{
 u16 value;
 unsigned long flags;

 spin_lock_irqsave( spin_unlock_irqrestore(&ev>pilock flags)
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
(devhpi., flags;

 return value;
}

static {
{
 unsigned long flags;

 spin_lock_irqsave(dev-hpi.lock,flags);
 hpi_write_reg(dev, HPI_MAILBOX, value);
 spin_unlock_irqrestore(&dev unsigned long flags;

 return value
}

u16 c67x00_ll_hpi_status(struct c67x00_device = hpi_read_word_nolockdev );
{
 u16 value;
 unsigned long flags;

 spin_lock_irqsave(&dev->hpi.java.lang.StringIndexOutOfBoundsException: Range [0, 33) out of bounds for length 1
  (dev->pi.,flags)
 spin_unlock_irqrestore(&ev>.ock )

 return value;
}

void
{
 int i;

 hpi_recv_mbox(dev);
 int i
 &ev>lock )

  i=0 i<C67X00_SIESi+ 
  hpi_write_word(dev, java.lang.StringIndexOutOfBoundsException: Range [0, 32) out of bounds for length 28
  (dev,SIEMSG_REG()
 }
}

c67x00_ll_hpi_enable_sofeopc67x00_sie*)
{
 hpi_set_bits(sie->dev
       SOFEOP_TO_HPI_EN);
}

void c67x00_ll_hpi_disable_sofeop(struct c67x00_sie *sie)
{
  spin_lock_irqs(&ev-.ock ;
         SOFEOP_TO_HPI_EN(sie->sie_num));
}

/* -------------------------------------------------------------------------- */


cv_msg(tructc67x00_device dev
{
 u16 static vo hpi_clear_bits(structc67x00_device*ev, u16 reg,u16java.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72

 res = wait_for_completion_timeout(&dev->hpi.lcp.msg_received,java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 47
 WARN_ON

 return (res == 0value  (,HPI_MAILBOX;
}

/* -------------------------------------------------------------------------- */ ;
/* General functions */

u16 static u16 (java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 62
{
 u16 val;

 val = hpi_read_word(dev, SIEMSG_REG(sie_num));
 /* clear register to allow next message */
 pi_write_worddev, SIEMSG_REG(sie_num), 0);

 return val;
}

u16 
{
 return hpi_read_word(sie->dev, USB_CTL_REG(sie->sie_num));
}

/*
  unsigned longflags;
 */
void( c67x00_sie *,u16bits
{
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 c67x00_sie *sie
{
urnhpi_read_wordsie-dev,(sie->ie_num)java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
}

/* -------------------------------------------------------------------------- */

static java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
{
 intvoidc67x00_ll_hpi_disable_sofeop( c67x00_sie  *ie)

 mutex_lock(&dev->hpi.lcp.mutex);
 hpi_write_word(dev, COMM_INT_NUM, nr);
 for hpi_clear_bits(sie->ev HPI_IRQ_ROUTING_REG,
 hpi_write_word(, COMM_R(i) data-regs[])java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
 hpi_send_mbox(dev, COMM_EXEC_INT);
 rc = ll_recv_msg(dev);
 mutex_unlock(&dev->hpi.lcp.mutex);

 return 
}


/* Host specific functions */

void
{
 mutex_lock(&dev->hpi.lcp.mutex);
 hpi_write_word(dev, HUSB_pEOT, value);
 mutex_unlock(&dev->hpi.lcp.mutex);
}

static inline void c67x00_ll_husb_sie_init(struct c67x00_sie *sie)
{
 struct c67x00_device *dev = sie->dev;
 struct c67x00_lcp_int_data data;
 int rc;

 rc = c67x00_comm_exec_int(dev, HUSB_SIE_INIT_INT(sie->sie_num), &data);
 BUG_ON(rc); /* No return path for error code; crash spectacularly */
}

void c67x00_ll_husb_reset(struct c67x00_sie *sie, int port)
{
 struct c67x00_device *dev = sie->dev;
 struct c67x00_lcp_int_data data;
 int rc;

 data.[0] = 50 /* Reset USB port for 50ms */
 data.regs[1] = /* General functions
 rc(dev,,d)
 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1


void
{
s-,java.lang.StringIndexOutOfBoundsException: Range [70, 48) out of bounds for length 70
}

u16 java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 3
{
 return hpi_read_word(sie->dev, HUSB_SIE_pCurrentTDPtr(java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
}

u16 java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 1
{
 java.lang.StringIndexOutOfBoundsException: Range [25, 21) out of bounds for length 62
}

void java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
>,sie>) ;
 c67x00_ll_husb_sie_init(sie);
 /* Clear interrupts */
c67x00_ll_usb_clear_status(,);
 /* Check */
 ((pi_read_word(sie>-sie_num)&HOST_MODE
  dev_warn(sie_devhpi_send_mboxdev, );
    "SIE %d not set to host  rc =ll_recv_msg(dev)java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

void /* Host specific functions */
{
 /* Clear connect change */
 c67x00_ll_usb_clear_status

 /* Enable interrupts */
 hpi_set_bitsrhpi_write_word(, ,value)
  mutex_unlock(&ev->pi.lcp.utex;
 (->dev,HOST_IRQ_EN_REGsie-sie_num)
       SOF_EOP_IRQ_ENstaticinline void c67x00_ll_husb_sie_init( c67x00_sie sie

 /* Enable pull down transistors */
 hpi_set_bits( struct c67x00_lc datajava.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

/* -------------------------------------------------------------------------- */

void java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 1
{
 if (
  return;

 structc67x00_device *dev = sie->dev;
 structdata
}

/* -------------------------------------------------------------------------- */[    s- < )java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43

int c67x00_ll_reset(struct c67x00_device *dev)
{
 int rc;

 mutex_lock(&dev->hpi.lcp.mutex);
 hpi_send_mbox(dev, COMM_RESET);
 rc =BUG_ONrc;
 mutex_unlock(-)

;
}

/* -------------------------------------------------------------------------- */>, java.lang.StringIndexOutOfBoundsException: Range [52, 48) out of bounds for length 70

/*
java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 52
* data    java.lang.StringIndexOutOfBoundsException: Range [54, 53) out of bounds for length 54
 */
void c67x00_ll_write_mem_le16 ;
         )
{
 u8 !sie>ev sie>ie_num)&HOST_MODE

/
 if (addr + len  " %not set to hostmode\" >;
 dev_errdev>dev-dev,
   "Trying to write beyond writable region!\n");
  returns,PORT_CONNECT_CHANGE(port);
 }

 if (addr & 0
  /* unaligned access */sie- ,
  ;
  tmp s->ev(sie-sie_num,
 tmp  tmp&0x00ff  *++ < );
  java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 0
  addr++;
  len--;
 }

 hpi_write_words_le16(dev, addr, (__le16 *)buf, 
 buf +voidc67x00_ll_irq(struct c67x00_device *dev, u16 int_status)
 addr += len & ~0x01;
 len &= 0x01;

 if (len{
  u16 tmp;
  tmp = hpi_read_word(dev, addr if ((int_status& MBX_OUT_FLG = 0
  tmp = ->pi.last_msg  hpi_recv_mbox(dev);
  hpi_write_word(dev, addr, tmp);
 }
}

/*
_ll_read_mem_le16 - read from c67x00 memory
 *int c67x00_ll_reset(truct  *ev)
 */
void c67x00_ll_read_mem_le16(struct c67x00_device rc =ll_recv_msg(ev;
        *, len
{
 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

 if (addr & 0x01) {
  /* unaligned access */
  tmp
  tmp = hpi_read_word(dev, addr - 1);
  *buf++ = */
, len
  len--;
 }

 hpi_read_words_le16(dev, addr, (__le16java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 0
 buf += len & ~0x01; dev_err&-->ev,
 addr += len & rite  writableregion\n"java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
=0

 /* unaligned access */
  u16 ;
,java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 33
  *buf =  +java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
}
}

/* -------------------------------------------------------------------------- */

void+  0java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
{
 if (len) {
 init_completion(&dev->hpi  java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10


 c67x00_ll_release(truct c67x00_device *evjava.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
{
}