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openwrt-xburst/openwrt/target/linux/linux-2.4/patches/ar7/005-vlynq.patch
nbd ae9c0f20fa change config name of led driver 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@1526 3c298f89-4303-0410-b956-a3cf2f4a3e73
2005-07-21 20:58:24 +00:00

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diff -urN linux.old/drivers/char/avalanche_vlynq/Makefile linux.dev/drivers/char/avalanche_vlynq/Makefile
--- linux.old/drivers/char/avalanche_vlynq/Makefile 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/drivers/char/avalanche_vlynq/Makefile 2005-07-22 06:32:53.345189608 +0200
@@ -0,0 +1,14 @@
+#
+# Makefile for the linux kernel.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile...
+
+O_TARGET := avalanche_vlynq.o
+
+obj-y += vlynq_drv.o vlynq_hal.o vlynq_board.o
+
+include $(TOPDIR)/Rules.make
diff -urN linux.old/drivers/char/avalanche_vlynq/vlynq_board.c linux.dev/drivers/char/avalanche_vlynq/vlynq_board.c
--- linux.old/drivers/char/avalanche_vlynq/vlynq_board.c 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/drivers/char/avalanche_vlynq/vlynq_board.c 2005-07-22 06:34:39.448059520 +0200
@@ -0,0 +1,182 @@
+/*
+ * Jeff Harrell, jharrell@ti.com
+ * Copyright (C) 2001 Texas Instruments, Inc. All rights reserved.
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Texas Instruments Sangam specific setup.
+ */
+#include <linux/config.h>
+#include <asm/ar7/sangam.h>
+#include <asm/ar7/avalanche_misc.h>
+#include <asm/ar7/vlynq.h>
+
+#define SYS_VLYNQ_LOCAL_INTERRUPT_VECTOR 30 /* MSB - 1 bit */
+#define SYS_VLYNQ_REMOTE_INTERRUPT_VECTOR 31 /* MSB bit */
+#define SYS_VLYNQ_OPTIONS 0x7F; /* all options*/
+
+/* These defines are board specific */
+
+
+#define VLYNQ0_REMOTE_WINDOW1_OFFSET (0x0C000000)
+#define VLYNQ0_REMOTE_WINDOW1_SIZE (0x500)
+
+
+#define VLYNQ1_REMOTE_WINDOW1_OFFSET (0x0C000000)
+#define VLYNQ1_REMOTE_WINDOW1_SIZE (0x500)
+
+
+extern VLYNQ_DEV vlynqDevice0, vlynqDevice1;
+int vlynq_init_status[2] = {0, 0};
+static int reset_hack = 1;
+
+void vlynq_ar7wrd_dev_init()
+{
+ *(unsigned long*) AVALANCHE_GPIO_ENBL |= (1<<18);
+ vlynq_delay(20000);
+ *(unsigned long*) AVALANCHE_GPIO_DIR &= ~(1<<18);
+ vlynq_delay(20000);
+ *(unsigned long*) AVALANCHE_GPIO_DATA_OUT&= ~(1<<18);
+ vlynq_delay(50000);
+ *(unsigned long*) AVALANCHE_GPIO_DATA_OUT|= (1<<18);
+ vlynq_delay(50000);
+
+ /* Initialize the MIPS host vlynq driver for a given vlynq interface */
+ vlynqDevice0.dev_idx = 0; /* first vlynq module - this parameter is for reference only */
+ vlynqDevice0.module_base = AVALANCHE_LOW_VLYNQ_CONTROL_BASE; /* vlynq0 module base address */
+
+#if defined(CONFIG_VLYNQ_CLK_LOCAL)
+ vlynqDevice0.clk_source = VLYNQ_CLK_SOURCE_LOCAL;
+#else
+ vlynqDevice0.clk_source = VLYNQ_CLK_SOURCE_REMOTE;
+#endif
+ vlynqDevice0.clk_div = 0x01; /* board/hardware specific */
+ vlynqDevice0.state = VLYNQ_DRV_STATE_UNINIT; /* uninitialized module */
+
+ /* Populate vlynqDevice0.local_mem & Vlynq0.remote_mem based on system configuration */
+ /*Local memory configuration */
+
+ /* Demiurg : not good !*/
+#if 0
+ vlynqDevice0.local_mem.Txmap= AVALANCHE_LOW_VLYNQ_MEM_MAP_BASE & ~(0xc0000000) ; /* physical address */
+ vlynqDevice0.remote_mem.RxOffset[0]= VLYNQ0_REMOTE_WINDOW1_OFFSET; /* This is specific to the board on the other end */
+ vlynqDevice0.remote_mem.RxSize[0]=VLYNQ0_REMOTE_WINDOW1_SIZE;
+#endif
+
+ /* Demiurg : This is how it should be ! */
+ vlynqDevice0.local_mem.Txmap = PHYSADDR(AVALANCHE_LOW_VLYNQ_MEM_MAP_BASE);
+#define VLYNQ_ACX111_MEM_OFFSET 0xC0000000 /* Physical address of ACX111 memory */
+#define VLYNQ_ACX111_MEM_SIZE 0x00040000 /* Total size of the ACX111 memory */
+#define VLYNQ_ACX111_REG_OFFSET 0xF0000000 /* PHYS_ADDR of ACX111 control registers */
+#define VLYNQ_ACX111_REG_SIZE 0x00022000 /* Size of ACX111 registers area, MAC+PHY */
+#define ACX111_VL1_REMOTE_SIZE 0x1000000
+ vlynqDevice0.remote_mem.RxOffset[0] = VLYNQ_ACX111_MEM_OFFSET;
+ vlynqDevice0.remote_mem.RxSize[0] = VLYNQ_ACX111_MEM_SIZE ;
+ vlynqDevice0.remote_mem.RxOffset[1] = VLYNQ_ACX111_REG_OFFSET;
+ vlynqDevice0.remote_mem.RxSize[1] = VLYNQ_ACX111_REG_SIZE ;
+ vlynqDevice0.remote_mem.Txmap = 0;
+ vlynqDevice0.local_mem.RxOffset[0] = AVALANCHE_SDRAM_BASE;
+ vlynqDevice0.local_mem.RxSize[0] = ACX111_VL1_REMOTE_SIZE;
+
+
+ /* Local interrupt configuration */
+ vlynqDevice0.local_irq.intLocal = VLYNQ_INT_LOCAL; /* Host handles vlynq interrupts*/
+ vlynqDevice0.local_irq.intRemote = VLYNQ_INT_ROOT_ISR; /* vlynq root isr used */
+ vlynqDevice0.local_irq.map_vector = SYS_VLYNQ_LOCAL_INTERRUPT_VECTOR;
+ vlynqDevice0.local_irq.intr_ptr = 0; /* Since remote interrupts part of vlynq root isr this is unused */
+
+ /* Remote interrupt configuration */
+ vlynqDevice0.remote_irq.intLocal = VLYNQ_INT_REMOTE; /* MIPS handles interrupts */
+ vlynqDevice0.remote_irq.intRemote = VLYNQ_INT_ROOT_ISR; /* Not significant since MIPS handles interrupts */
+ vlynqDevice0.remote_irq.map_vector = SYS_VLYNQ_REMOTE_INTERRUPT_VECTOR;
+ vlynqDevice0. remote_irq.intr_ptr = AVALANCHE_INTC_BASE; /* Not significant since MIPS handles interrupts */
+
+ if(reset_hack != 1)
+ printk("About to re-init the VLYNQ.\n");
+
+ if(vlynq_init(&vlynqDevice0,VLYNQ_INIT_PERFORM_ALL)== 0)
+ {
+ /* Suraj added the following to keep the 1130 going. */
+ vlynq_interrupt_vector_set(&vlynqDevice0, 0 /* intr vector line running into 1130 vlynq */,
+ 0 /* intr mapped onto the interrupt register on remote vlynq and this vlynq */,
+ VLYNQ_REMOTE_DVC, 0 /* polarity active high */, 0 /* interrupt Level triggered */);
+
+ /* System wide interrupt is 80 for 1130, please note. */
+ vlynq_init_status[0] = 1;
+ reset_hack = 2;
+ }
+ else
+ {
+ if(reset_hack == 1)
+ printk("VLYNQ INIT FAILED: Please try cold reboot. \n");
+ else
+ printk("Failed to initialize the VLYNQ interface at insmod.\n");
+
+ }
+}
+
+void vlynq_dev_init(void)
+{
+ volatile unsigned int *reset_base = (unsigned int *) AVALANCHE_RESET_CONTROL_BASE;
+
+ *reset_base &= ~((1 << AVALANCHE_LOW_VLYNQ_RESET_BIT)); /* | (1 << AVALANCHE_HIGH_VLYNQ_RESET_BIT)); */
+
+ vlynq_delay(20000);
+
+ /* Bring vlynq out of reset if not already done */
+ *reset_base |= (1 << AVALANCHE_LOW_VLYNQ_RESET_BIT); /* | (1 << AVALANCHE_HIGH_VLYNQ_RESET_BIT); */
+ vlynq_delay(20000); /* Allowing sufficient time to VLYNQ to settle down.*/
+
+ vlynq_ar7wrd_dev_init( );
+
+}
+
+/* This function is board specific and should be ported for each board. */
+void remote_vlynq_dev_reset_ctrl(unsigned int module_reset_bit,
+ AVALANCHE_RESET_CTRL_T reset_ctrl)
+{
+ if(module_reset_bit >= 32)
+ return;
+
+ switch(module_reset_bit)
+ {
+ case 0:
+ if(OUT_OF_RESET == reset_ctrl)
+ {
+ if(reset_hack) return;
+
+ vlynq_delay(20000);
+ printk("Un-resetting the remote device.\n");
+ vlynq_dev_init();
+ printk("Re-initialized the VLYNQ.\n");
+ reset_hack = 2;
+ }
+ else if(IN_RESET == reset_ctrl)
+ {
+ *(unsigned long*) AVALANCHE_GPIO_DATA_OUT &= ~(1<<18);
+
+ vlynq_delay(20000);
+ printk("Resetting the remote device.\n");
+ reset_hack = 0;
+ }
+ else
+ ;
+ break;
+
+ default:
+ break;
+
+ }
+}
+
diff -urN linux.old/drivers/char/avalanche_vlynq/vlynq_drv.c linux.dev/drivers/char/avalanche_vlynq/vlynq_drv.c
--- linux.old/drivers/char/avalanche_vlynq/vlynq_drv.c 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/drivers/char/avalanche_vlynq/vlynq_drv.c 2005-07-22 06:32:53.345189608 +0200
@@ -0,0 +1,242 @@
+/******************************************************************************
+ * FILE PURPOSE: Vlynq Linux Device Driver Source
+ ******************************************************************************
+ * FILE NAME: vlynq_drv.c
+ *
+ * DESCRIPTION: Vlynq Linux Device Driver Source
+ *
+ * REVISION HISTORY:
+ *
+ * Date Description Author
+ *-----------------------------------------------------------------------------
+ * 17 July 2003 Initial Creation Anant Gole
+ * 17 Dec 2003 Updates Sharath Kumar
+ *
+ * (C) Copyright 2003, Texas Instruments, Inc
+ *******************************************************************************/
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/miscdevice.h>
+#include <linux/smp_lock.h>
+#include <linux/delay.h>
+#include <linux/proc_fs.h>
+#include <linux/capability.h>
+#include <asm/ar7/avalanche_intc.h>
+#include <asm/ar7/sangam.h>
+#include <asm/ar7/vlynq.h>
+
+
+#define TI_VLYNQ_VERSION "0.2"
+
+/* debug on ? */
+#define VLYNQ_DEBUG
+
+/* Macro for debug and error printf's */
+#ifdef VLYNQ_DEBUG
+#define DBGPRINT printk
+#else
+#define DBGPRINT(x)
+#endif
+
+#define ERRPRINT printk
+
+/* Define the max vlynq ports this driver will support.
+ Device name strings are statically added here */
+#define MAX_VLYNQ_PORTS 2
+
+
+/* Type define for VLYNQ private structure */
+typedef struct vlynqPriv{
+ int irq;
+ VLYNQ_DEV *vlynqDevice;
+}VLYNQ_PRIV;
+
+extern int vlynq_init_status[2];
+
+/* Extern Global variable for vlynq devices used in initialization of the vlynq device
+ * These variables need to be populated/initialized by the system as part of initialization
+ * process. The vlynq enumerator can run at initialization and populate these globals
+ */
+
+VLYNQ_DEV vlynqDevice0;
+VLYNQ_DEV vlynqDevice1;
+
+/* Defining dummy macro AVALANCHE_HIGH_VLYNQ_INT to take
+ * care of compilation in case of single vlynq device
+ */
+
+#ifndef AVALANCHE_HIGH_VLYNQ_INT
+#define AVALANCHE_HIGH_VLYNQ_INT 0
+#endif
+
+
+
+/* vlynq private object */
+VLYNQ_PRIV vlynq_priv[CONFIG_AR7_VLYNQ_PORTS] = {
+ { LNXINTNUM(AVALANCHE_LOW_VLYNQ_INT),&vlynqDevice0},
+ { LNXINTNUM(AVALANCHE_HIGH_VLYNQ_INT),&vlynqDevice1},
+};
+
+extern void vlynq_dev_init(void);
+
+
+/* =================================== all the operations */
+
+static int
+vlynq_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+ return 0;
+}
+
+static struct file_operations vlynq_fops = {
+ owner: THIS_MODULE,
+ ioctl: vlynq_ioctl,
+};
+
+/* Vlynq device object */
+static struct miscdevice vlynq_dev [MAX_VLYNQ_PORTS] = {
+ { MISC_DYNAMIC_MINOR , "vlynq0", &vlynq_fops },
+ { MISC_DYNAMIC_MINOR , "vlynq1", &vlynq_fops },
+};
+
+
+/* Proc read function */
+static int
+vlynq_read_link_proc(char *buf, char **start, off_t offset, int count, int *eof, void *unused)
+{
+ int instance;
+ int len = 0;
+
+ len += sprintf(buf +len,"VLYNQ Devices : %d\n",CONFIG_AR7_VLYNQ_PORTS);
+
+ for(instance =0;instance < CONFIG_AR7_VLYNQ_PORTS;instance++)
+ {
+ int link_state;
+ char *link_msg[] = {" DOWN "," UP "};
+
+ if(vlynq_init_status[instance] == 0)
+ link_state = 0;
+
+ else if (vlynq_link_check(vlynq_priv[instance].vlynqDevice))
+ link_state = 1;
+
+ else
+ link_state = 0;
+
+ len += sprintf(buf + len, "VLYNQ %d: Link state: %s\n",instance,link_msg[link_state]);
+
+ }
+ /* Print info about vlynq device 1 */
+
+ return len;
+}
+
+
+/* Proc function to display driver version */
+static int
+vlynq_read_ver_proc(char *buf, char **start, off_t offset, int count, int *eof, void *data)
+{
+ int instance;
+ int len=0;
+
+ len += sprintf(buf +len,"\nTI Linux VLYNQ Driver Version %s\n",TI_VLYNQ_VERSION);
+ return len;
+}
+
+
+
+
+/* Wrapper for vlynq ISR */
+static void lnx_vlynq_root_isr(int irq, void * arg, struct pt_regs *regs)
+{
+ vlynq_root_isr(arg);
+}
+
+/* =================================== init and cleanup */
+
+int vlynq_init_module(void)
+{
+ int ret;
+ int unit = 0;
+ int instance_count = CONFIG_AR7_VLYNQ_PORTS;
+ volatile int *ptr;
+
+ vlynq_dev_init();
+
+ DBGPRINT("Vlynq CONFIG_AR7_VLYNQ_PORTS=%d\n", CONFIG_AR7_VLYNQ_PORTS);
+ /* If num of configured vlynq ports > supported by driver return error */
+ if (instance_count > MAX_VLYNQ_PORTS)
+ {
+ ERRPRINT("ERROR: vlynq_init_module(): Max %d supported\n", MAX_VLYNQ_PORTS);
+ return (-1);
+ }
+
+ /* register the misc device */
+ for (unit = 0; unit < CONFIG_AR7_VLYNQ_PORTS; unit++)
+ {
+ ret = misc_register(&vlynq_dev[unit]);
+
+ if(ret < 0)
+ {
+ ERRPRINT("ERROR:Could not register vlynq device:%d\n",unit);
+ continue;
+ }
+ else
+ DBGPRINT("Vlynq Device %s registered with minor no %d as misc device. Result=%d\n",
+ vlynq_dev[unit].name, vlynq_dev[unit].minor, ret);
+#if 0
+
+ DBGPRINT("Calling vlynq init\n");
+
+ /* Read the global variable for VLYNQ device structure and initialize vlynq driver */
+ ret = vlynq_init(vlynq_priv[unit].vlynqDevice,VLYNQ_INIT_PERFORM_ALL );
+#endif
+
+ if(vlynq_init_status[unit] == 0)
+ {
+ printk("VLYNQ %d : init failed\n",unit);
+ continue;
+ }
+
+ /* Check link before proceeding */
+ if (!vlynq_link_check(vlynq_priv[unit].vlynqDevice))
+ {
+ DBGPRINT("\nError: Vlynq link not available.trying once before Exiting");
+ }
+ else
+ {
+ DBGPRINT("Vlynq instance:%d Link UP\n",unit);
+
+ /* Install the vlynq local root ISR */
+ request_irq(vlynq_priv[unit].irq,lnx_vlynq_root_isr,0,vlynq_dev[unit].name,vlynq_priv[unit].vlynqDevice);
+ }
+ }
+
+ /* Creating proc entry for the devices */
+ create_proc_read_entry("avalanche/vlynq_link", 0, NULL, vlynq_read_link_proc, NULL);
+ create_proc_read_entry("avalanche/vlynq_ver", 0, NULL, vlynq_read_ver_proc, NULL);
+
+ return 0;
+}
+
+void vlynq_cleanup_module(void)
+{
+ int unit = 0;
+
+ for (unit = 0; unit < CONFIG_AR7_VLYNQ_PORTS; unit++)
+ {
+ DBGPRINT("vlynq_cleanup_module(): Unregistring misc device %s\n",vlynq_dev[unit].name);
+ misc_deregister(&vlynq_dev[unit]);
+ }
+
+ remove_proc_entry("avalanche/vlynq_link", NULL);
+ remove_proc_entry("avalanche/vlynq_ver", NULL);
+}
+
+
+module_init(vlynq_init_module);
+module_exit(vlynq_cleanup_module);
+
diff -urN linux.old/drivers/char/avalanche_vlynq/vlynq_hal.c linux.dev/drivers/char/avalanche_vlynq/vlynq_hal.c
--- linux.old/drivers/char/avalanche_vlynq/vlynq_hal.c 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/drivers/char/avalanche_vlynq/vlynq_hal.c 2005-07-22 06:32:53.359187480 +0200
@@ -0,0 +1,1214 @@
+/***************************************************************************
+**+----------------------------------------------------------------------+**
+**| **** |**
+**| **** |**
+**| ******o*** |**
+**| ********_///_**** |**
+**| ***** /_//_/ **** |**
+**| ** ** (__/ **** |**
+**| ********* |**
+**| **** |**
+**| *** |**
+**| |**
+**| Copyright (c) 2003 Texas Instruments Incorporated |**
+**| ALL RIGHTS RESERVED |**
+**| |**
+**| Permission is hereby granted to licensees of Texas Instruments |**
+**| Incorporated (TI) products to use this computer program for the sole |**
+**| purpose of implementing a licensee product based on TI products. |**
+**| No other rights to reproduce, use, or disseminate this computer |**
+**| program, whether in part or in whole, are granted. |**
+**| |**
+**| TI makes no representation or warranties with respect to the |**
+**| performance of this computer program, and specifically disclaims |**
+**| any responsibility for any damages, special or consequential, |**
+**| connected with the use of this program. |**
+**| |**
+**+----------------------------------------------------------------------+**
+***************************************************************************/
+
+/***************************************************************************
+ * ------------------------------------------------------------------------------
+ * Module : vlynq_hal.c
+ * Description : This file implements VLYNQ HAL API.
+ * ------------------------------------------------------------------------------
+ ***************************************************************************/
+
+#include <linux/stddef.h>
+#include <linux/types.h>
+#include <asm/ar7/vlynq.h>
+
+/**** Local Function prototypes *******/
+static int vlynqInterruptInit(VLYNQ_DEV *pdev);
+static void vlynq_configClock(VLYNQ_DEV *pdev);
+
+/*** Second argument must be explicitly type casted to
+ * (VLYNQ_DEV*) inside the following functions */
+static void vlynq_local_module_isr(void *arg1, void *arg2, void *arg3);
+static void vlynq_remote_module_isr(void *arg1, void *arg2, void *arg3);
+
+
+volatile int vlynq_delay_value = 0;
+
+/* Code adopted from original vlynq driver */
+void vlynq_delay(unsigned int clktime)
+{
+ int i = 0;
+ volatile int *ptr = &vlynq_delay_value;
+ *ptr = 0;
+
+ /* We are assuming that the each cycle takes about
+ * 23 assembly instructions. */
+ for(i = 0; i < (clktime + 23)/23; i++)
+ {
+ *ptr = *ptr + 1;
+ }
+}
+
+
+/* ----------------------------------------------------------------------------
+ * Function : vlynq_configClock()
+ * Description: Configures clock settings based on input parameters
+ * Adapted from original vlyna driver from Cable
+ */
+static void vlynq_configClock(VLYNQ_DEV * pdev)
+{
+ unsigned int tmp;
+
+ switch( pdev->clk_source)
+ {
+ case VLYNQ_CLK_SOURCE_LOCAL: /* we output the clock, clk_div in range [1..8]. */
+ tmp = ((pdev->clk_div - 1) << 16) | VLYNQ_CTL_CLKDIR_MASK ;
+ VLYNQ_CTRL_REG = tmp;
+ VLYNQ_R_CTRL_REG = 0ul;
+ break;
+ case VLYNQ_CLK_SOURCE_REMOTE: /* we need to set the clock pin as input */
+ VLYNQ_CTRL_REG = 0ul;
+ tmp = ((pdev->clk_div - 1) << 16) | VLYNQ_CTL_CLKDIR_MASK ;
+ VLYNQ_R_CTRL_REG = tmp;
+ break;
+ default: /* do nothing about the clock, but clear other bits. */
+ tmp = ~(VLYNQ_CTL_CLKDIR_MASK | VLYNQ_CTL_CLKDIV_MASK);
+ VLYNQ_CTRL_REG &= tmp;
+ break;
+ }
+}
+
+ /* ----------------------------------------------------------------------------
+ * Function : vlynq_link_check()
+ * Description: This function checks the current VLYNQ for a link.
+ * An arbitrary amount of time is allowed for the link to come up .
+ * Returns 0 for "no link / failure " and 1 for "link available".
+ * -----------------------------------------------------------------------------
+ */
+unsigned int vlynq_link_check( VLYNQ_DEV * pdev)
+{
+ /*sleep for 64 cycles, allow link to come up*/
+ vlynq_delay(64);
+
+ /* check status register return OK if link is found. */
+ if (VLYNQ_STATUS_REG & VLYNQ_STS_LINK_MASK)
+ {
+ return 1; /* Link Available */
+ }
+ else
+ {
+ return 0; /* Link Failure */
+ }
+}
+
+/* ----------------------------------------------------------------------------
+ * Function : vlynq_init()
+ * Description: Initialization function accepting paramaters for VLYNQ module
+ * initialization. The Options bitmap decides what operations are performed
+ * as a part of initialization. The Input parameters are obtained through the
+ * sub fields of VLYNQ_DEV structure.
+ */
+
+int vlynq_init(VLYNQ_DEV *pdev, VLYNQ_INIT_OPTIONS options)
+{
+ unsigned int map;
+ unsigned int val=0,cnt,tmp;
+ unsigned int counter=0;
+ VLYNQ_INTERRUPT_CNTRL *intSetting=NULL;
+
+ /* validate arguments */
+ if( VLYNQ_OUTRANGE(pdev->clk_source, VLYNQ_CLK_SOURCE_REMOTE, VLYNQ_CLK_SOURCE_NONE) ||
+ VLYNQ_OUTRANGE(pdev->clk_div, 8, 1) )
+ {
+ return VLYNQ_INVALID_ARG;
+ }
+
+ /** perform all sanity checks first **/
+ if(pdev->state != VLYNQ_DRV_STATE_UNINIT)
+ return VLYNQ_INVALID_DRV_STATE;
+
+ /** Initialize local and remote register set addresses- additional
+ * provision to access the registers directly if need be */
+ pdev->local = (VLYNQ_REG_SET*)pdev->module_base;
+ pdev->remote = (VLYNQ_REG_SET*) (pdev->module_base + VLYNQ_REMOTE_REGS_OFFSET);
+
+ /* Detect faulty int configuration that might induce int pkt looping */
+ if ( (options & VLYNQ_INIT_LOCAL_INTERRUPTS) && (options & VLYNQ_INIT_REMOTE_INTERRUPTS) )
+ {
+ /* case when both local and remote are configured */
+ if((pdev->local_irq.intLocal== VLYNQ_INT_REMOTE ) /* interrupts transfered to remote from local */
+ && (pdev->remote_irq.intLocal== VLYNQ_INT_REMOTE) /* interrupts transfered from remote to local */
+ && ((pdev->local_irq.intRemote == VLYNQ_INT_ROOT_ISR) || (pdev->remote_irq.intRemote == VLYNQ_INT_ROOT_ISR)) )
+ {
+ return (VLYNQ_INT_CONFIG_ERR);
+ }
+ }
+
+ pdev->state = VLYNQ_DRV_STATE_ININIT;
+ pdev->intCount = 0;
+ pdev->isrCount = 0;
+
+ /*** Its assumed that the vlynq module has been brought out of reset
+ * before invocation of vlynq_init. Since, this operation is board specific
+ * it must be handled outside this generic driver */
+
+ /* Assert reset the remote device, call reset_cb,
+ * reset CB holds Reset according to the device needs. */
+ VLYNQ_RESETCB(VLYNQ_RESET_ASSERT);
+
+ /* Handle VLYNQ clock, HW default (Sense On Reset) is
+ * usually input for all the devices. */
+ if (options & VLYNQ_INIT_CONFIG_CLOCK)
+ {
+ vlynq_configClock(pdev);
+ }
+
+ /* Call reset_cb again. It will release the remote device
+ * from reset, and wait for a while. */
+ VLYNQ_RESETCB(VLYNQ_RESET_DEASSERT);
+
+ if(options & VLYNQ_INIT_CHECK_LINK )
+ {
+ /* Check for link up during initialization*/
+ while( counter < 25 )
+ {
+ /* loop around giving a chance for link status to settle down */
+ counter++;
+ if(vlynq_link_check(pdev))
+ {
+ /* Link is up exit loop*/
+ break;
+ }
+
+ vlynq_delay(4000);
+ }/*end of while counter loop */
+
+ if(!vlynq_link_check(pdev))
+ {
+ /* Handle this case as abort */
+ pdev->state = VLYNQ_DRV_STATE_ERROR;
+ VLYNQ_RESETCB( VLYNQ_RESET_INITFAIL);
+ return VLYNQ_LINK_DOWN;
+ }/* end of if not vlynq_link_check conditional block */
+
+ }/*end of if options & VLYNQ_INIT_CHECK_LINK conditional block */
+
+
+ if (options & VLYNQ_INIT_LOCAL_MEM_REGIONS)
+ {
+ /* Initialise local memory regions . This initialization lets
+ * the local host access remote device memory regions*/
+ int i;
+
+ /* configure the VLYNQ portal window to a PHYSICAL
+ * address of the local CPU */
+ VLYNQ_ALIGN4(pdev->local_mem.Txmap);
+ VLYNQ_TXMAP_REG = (pdev->local_mem.Txmap);
+
+ /*This code assumes input parameter is itself a physical address */
+ for(i=0; i < VLYNQ_MAX_MEMORY_REGIONS ; i++)
+ {
+ /* Physical address on the remote */
+ map = i+1;
+ VLYNQ_R_RXMAP_SIZE_REG(map) = 0;
+ if( pdev->remote_mem.RxSize[i])
+ {
+ VLYNQ_ALIGN4(pdev->remote_mem.RxOffset[i]);
+ VLYNQ_ALIGN4(pdev->remote_mem.RxSize[i]);
+ VLYNQ_R_RXMAP_OFFSET_REG(map) = pdev->remote_mem.RxOffset[i];
+ VLYNQ_R_RXMAP_SIZE_REG(map) = pdev->remote_mem.RxSize[i];
+ }
+ }
+ }
+
+ if(options & VLYNQ_INIT_REMOTE_MEM_REGIONS )
+ {
+ int i;
+
+ /* Initialise remote memory regions. This initialization lets remote
+ * device access local host memory regions. It configures the VLYNQ portal
+ * window to a PHYSICAL address of the remote */
+ VLYNQ_ALIGN4(pdev->remote_mem.Txmap);
+ VLYNQ_R_TXMAP_REG = pdev->remote_mem.Txmap;
+
+ for( i=0; i<VLYNQ_MAX_MEMORY_REGIONS; i++)
+ {
+ /* Physical address on the local */
+ map = i+1;
+ VLYNQ_RXMAP_SIZE_REG(map) = 0;
+ if( pdev->local_mem.RxSize[i])
+ {
+ VLYNQ_ALIGN4(pdev->local_mem.RxOffset[i]);
+ VLYNQ_ALIGN4(pdev->local_mem.RxSize[i]);
+ VLYNQ_RXMAP_OFFSET_REG(map) = (pdev->local_mem.RxOffset[i]);
+ VLYNQ_RXMAP_SIZE_REG(map) = (pdev->local_mem.RxSize[i]);
+ }
+ }
+ }
+
+ /* Adapted from original vlynq driver from cable - Calculate VLYNQ bus width */
+ pdev->width = 3 + VLYNQ_STATUS_FLD_WIDTH(VLYNQ_STATUS_REG)
+ + VLYNQ_STATUS_FLD_WIDTH(VLYNQ_R_STATUS_REG);
+
+ /* chance to initialize the device, e.g. to boost VLYNQ
+ * clock by modifying pdev->clk_div or and verify the width. */
+ VLYNQ_RESETCB(VLYNQ_RESET_LINKESTABLISH);
+
+ /* Handle VLYNQ clock, HW default (Sense On Reset) is
+ * usually input for all the devices. */
+ if(options & VLYNQ_INIT_CONFIG_CLOCK )
+ {
+ vlynq_configClock(pdev);
+ }
+
+ /* last check for link*/
+ if(options & VLYNQ_INIT_CHECK_LINK )
+ {
+ /* Final Check for link during initialization*/
+ while( counter < 25 )
+ {
+ /* loop around giving a chance for link status to settle down */
+ counter++;
+ if(vlynq_link_check(pdev))
+ {
+ /* Link is up exit loop*/
+ break;
+ }
+
+ vlynq_delay(4000);
+ }/*end of while counter loop */
+
+ if(!vlynq_link_check(pdev))
+ {
+ /* Handle this case as abort */
+ pdev->state = VLYNQ_DRV_STATE_ERROR;
+ VLYNQ_RESETCB( VLYNQ_RESET_INITFAIL);
+ return VLYNQ_LINK_DOWN;
+ }/* end of if not vlynq_link_check conditional block */
+
+ } /* end of if options & VLYNQ_INIT_CHECK_LINK */
+
+ if(options & VLYNQ_INIT_LOCAL_INTERRUPTS )
+ {
+ /* Configure local interrupt settings */
+ intSetting = &(pdev->local_irq);
+
+ /* Map local module status interrupts to interrupt vector*/
+ val = intSetting->map_vector << VLYNQ_CTL_INTVEC_SHIFT ;
+
+ /* enable local module status interrupts */
+ val |= 0x01 << VLYNQ_CTL_INTEN_SHIFT;
+
+ if ( intSetting->intLocal == VLYNQ_INT_LOCAL )
+ {
+ /*set the intLocal bit*/
+ val |= 0x01 << VLYNQ_CTL_INTLOCAL_SHIFT;
+ }
+
+ /* Irrespective of whether interrupts are handled locally, program
+ * int2Cfg. Error checking for accidental loop(when intLocal=0 and int2Cfg=1
+ * i.e remote packets are set intPending register->which will result in
+ * same packet being sent out) has been done already
+ */
+
+ if (intSetting->intRemote == VLYNQ_INT_ROOT_ISR)
+ {
+ /* Set the int2Cfg register, so that remote interrupt
+ * packets are written to intPending register */
+ val |= 0x01 << VLYNQ_CTL_INT2CFG_SHIFT;
+
+ /* Set intPtr register to point to intPending register */
+ VLYNQ_INT_PTR_REG = VLYNQ_INT_PENDING_REG_PTR ;
+ }
+ else
+ {
+ /*set the interrupt pointer register*/
+ VLYNQ_INT_PTR_REG = intSetting->intr_ptr;
+ /* Dont bother to modify int2Cfg as it would be zero */
+ }
+
+ /** Clear bits related to INT settings in control register **/
+ VLYNQ_CTRL_REG = VLYNQ_CTRL_REG & (~VLYNQ_CTL_INTFIELDS_CLEAR_MASK);
+
+ /** Or the bits to be set with Control register **/
+ VLYNQ_CTRL_REG = VLYNQ_CTRL_REG | val;
+
+ /* initialise local ICB */
+ if(vlynqInterruptInit(pdev)==VLYNQ_MEMALLOC_FAIL)
+ return VLYNQ_MEMALLOC_FAIL;
+
+ /* Install handler for local module status interrupts. By default when
+ * local interrupt setting is initialised, the local module status are
+ * enabled and handler hooked up */
+ if(vlynq_install_isr(pdev, intSetting->map_vector, vlynq_local_module_isr,
+ pdev, NULL, NULL) == VLYNQ_INVALID_ARG)
+ return VLYNQ_INVALID_ARG;
+ } /* end of init local interrupts */
+
+ if(options & VLYNQ_INIT_REMOTE_INTERRUPTS )
+ {
+ /* Configure remote interrupt settings from configuration */
+ intSetting = &(pdev->remote_irq);
+
+ /* Map remote module status interrupts to remote interrupt vector*/
+ val = intSetting->map_vector << VLYNQ_CTL_INTVEC_SHIFT ;
+ /* enable remote module status interrupts */
+ val |= 0x01 << VLYNQ_CTL_INTEN_SHIFT;
+
+ if ( intSetting->intLocal == VLYNQ_INT_LOCAL )
+ {
+ /*set the intLocal bit*/
+ val |= 0x01 << VLYNQ_CTL_INTLOCAL_SHIFT;
+ }
+
+ /* Irrespective of whether interrupts are handled locally, program
+ * int2Cfg. Error checking for accidental loop(when intLocal=0 and int2Cfg=1
+ * i.e remote packets are set intPending register->which will result in
+ * same packet being sent out) has been done already
+ */
+
+ if (intSetting->intRemote == VLYNQ_INT_ROOT_ISR)
+ {
+ /* Set the int2Cfg register, so that remote interrupt
+ * packets are written to intPending register */
+ val |= 0x01 << VLYNQ_CTL_INT2CFG_SHIFT;
+ /* Set intPtr register to point to intPending register */
+ VLYNQ_R_INT_PTR_REG = VLYNQ_R_INT_PENDING_REG_PTR ;
+ }
+ else
+ {
+ /*set the interrupt pointer register*/
+ VLYNQ_R_INT_PTR_REG = intSetting->intr_ptr;
+ /* Dont bother to modify int2Cfg as it would be zero */
+ }
+
+ if( (intSetting->intLocal == VLYNQ_INT_REMOTE) &&
+ (options & VLYNQ_INIT_LOCAL_INTERRUPTS) &&
+ (pdev->local_irq.intRemote == VLYNQ_INT_ROOT_ISR) )
+ {
+ /* Install handler for remote module status interrupts. By default when
+ * remote interrupts are forwarded to local root_isr then remote_module_isr is
+ * enabled and handler hooked up */
+ if(vlynq_install_isr(pdev,intSetting->map_vector,vlynq_remote_module_isr,
+ pdev, NULL, NULL) == VLYNQ_INVALID_ARG)
+ return VLYNQ_INVALID_ARG;
+ }
+
+
+ /** Clear bits related to INT settings in control register **/
+ VLYNQ_R_CTRL_REG = VLYNQ_R_CTRL_REG & (~VLYNQ_CTL_INTFIELDS_CLEAR_MASK);
+
+ /** Or the bits to be set with the remote Control register **/
+ VLYNQ_R_CTRL_REG = VLYNQ_R_CTRL_REG | val;
+
+ } /* init remote interrupt settings*/
+
+ if(options & VLYNQ_INIT_CLEAR_ERRORS )
+ {
+ /* Clear errors during initialization */
+ tmp = VLYNQ_STATUS_REG & (VLYNQ_STS_RERROR_MASK | VLYNQ_STS_LERROR_MASK);
+ VLYNQ_STATUS_REG = tmp;
+ tmp = VLYNQ_R_STATUS_REG & (VLYNQ_STS_RERROR_MASK | VLYNQ_STS_LERROR_MASK);
+ VLYNQ_R_STATUS_REG = tmp;
+ }
+
+ /* clear int status */
+ val = VLYNQ_INT_STAT_REG;
+ VLYNQ_INT_STAT_REG = val;
+
+ /* finish initialization */
+ pdev->state = VLYNQ_DRV_STATE_RUN;
+ VLYNQ_RESETCB( VLYNQ_RESET_INITOK);
+ return VLYNQ_SUCCESS;
+
+}
+
+
+/* ----------------------------------------------------------------------------
+ * Function : vlynqInterruptInit()
+ * Description: This local function is used to set up the ICB table for the
+ * VLYNQ_STATUS_REG vlynq module. The input parameter "pdev" points the vlynq
+ * device instance whose ICB is allocated.
+ * Return : returns VLYNQ_SUCCESS or vlynq error for failure
+ * -----------------------------------------------------------------------------
+ */
+static int vlynqInterruptInit(VLYNQ_DEV *pdev)
+{
+ int i, numslots;
+
+ /* Memory allocated statically.
+ * Initialise ICB,free list.Indicate primary slot empty.
+ * Intialise intVector <==> map_vector translation table*/
+ for(i=0; i < VLYNQ_NUM_INT_BITS; i++)
+ {
+ pdev->pIntrCB[i].isr = NULL;
+ pdev->pIntrCB[i].next = NULL; /*nothing chained */
+ pdev->vector_map[i] = -1; /* indicates unmapped */
+ }
+
+ /* In the ICB slots, [VLYNQ_NUM_INT_BITS i.e 32 to ICB array size) are expansion slots
+ * required only when interrupt chaining/sharing is supported. In case
+ * of chained interrupts the list starts from primary slot and the
+ * additional slots are obtained from the common free area */
+
+ /* Initialise freelist */
+
+ numslots = VLYNQ_NUM_INT_BITS + VLYNQ_IVR_CHAIN_SLOTS;
+
+ if (numslots > VLYNQ_NUM_INT_BITS)
+ {
+ pdev->freelist = &(pdev->pIntrCB[VLYNQ_NUM_INT_BITS]);
+
+ for(i = VLYNQ_NUM_INT_BITS; i < (numslots-1) ; i++)
+ {
+ pdev->pIntrCB[i].next = &(pdev->pIntrCB[i+1]);
+ pdev->pIntrCB[i].isr = NULL;
+ }
+ pdev->pIntrCB[i].next=NULL; /* Indicate end of freelist*/
+ pdev->pIntrCB[i].isr=NULL;
+ }
+ else
+ {
+ pdev->freelist = NULL;
+ }
+
+ /** Reset mapping for IV 0-7 **/
+ VLYNQ_IVR_03TO00_REG = 0;
+ VLYNQ_IVR_07TO04_REG = 0;
+
+ return VLYNQ_SUCCESS;
+}
+
+/** remember that hooking up of root ISR handler with the interrupt controller
+ * is not done as a part of this driver. Typically, it must be done after
+ * invoking vlynq_init*/
+
+
+ /* ----------------------------------------------------------------------------
+ * ISR with the SOC interrupt controller. This ISR typically scans
+ * the Int PENDING/SET register in the VLYNQ module and calls the
+ * appropriate ISR associated with the correponding vector number.
+ * -----------------------------------------------------------------------------
+ */
+void vlynq_root_isr(void *arg)
+{
+ int source; /* Bit position of pending interrupt, start from 0 */
+ unsigned int interrupts, clrInterrupts;
+ VLYNQ_DEV * pdev;
+ VLYNQ_INTR_CNTRL_ICB *entry;
+
+ pdev=(VLYNQ_DEV*)(arg); /*obtain the vlynq device pointer*/
+
+ interrupts = VLYNQ_INT_STAT_REG; /* Get the list of pending interrupts */
+ VLYNQ_INT_STAT_REG = interrupts; /* clear the int CR register */
+ clrInterrupts = interrupts; /* save them for further analysis */
+
+ debugPrint("vlynq_root_isr: dev %u. INTCR = 0x%08lx\n", pdev->dev_idx, clrInterrupts,0,0,0,0);
+
+ /* Scan interrupt bits */
+ source =0;
+ while( clrInterrupts != 0)
+ {
+ /* test if bit is set? */
+ if( 0x1ul & clrInterrupts)
+ {
+ entry = &(pdev->pIntrCB[source]); /* Get the ISR entry */
+ pdev->intCount++; /* update interrupt count */
+ if(entry->isr != NULL)
+ {
+ do
+ {
+ pdev->isrCount++; /* update isr invocation count */
+ /* Call the user ISR and update the count for ISR */
+ entry->isrCount++;
+ entry->isr(entry->arg1, entry->arg2, entry->arg3);
+ if (entry->next == NULL) break;
+ entry = entry->next;
+
+ } while (entry->isr != NULL);
+ }
+ else
+ {
+ debugPrint(" ISR not installed for vlynq vector:%d\n",source,0,0,0,0,0);
+ }
+ }
+ clrInterrupts >>= 1; /* Next source bit */
+ ++source;
+ } /* endWhile clrInterrupts != 0 */
+}
+
+
+ /* ----------------------------------------------------------------------------
+ * Function : vlynq_local__module_isr()
+ * Description: This ISR is attached to the local VLYNQ interrupt vector
+ * by the Vlynq Driver when local interrupts are being handled. i.e.
+ * intLocal=1. This ISR handles local Vlynq module status interrupts only
+ * AS a part of this ISR, user callback in VLYNQ_DEV structure
+ * is invoked.
+ * VLYNQ_DEV is passed as arg1. arg2 and arg3 are unused.
+ * -----------------------------------------------------------------------------
+ */
+static void vlynq_local_module_isr(void *arg1,void *arg2, void *arg3)
+{
+ VLYNQ_REPORT_CB func;
+ unsigned int dwStatRegVal;
+ VLYNQ_DEV * pdev;
+
+ pdev = (VLYNQ_DEV*) arg1;
+ /* Callback function is read from the device pointer that is passed as an argument */
+ func = pdev->report_cb;
+
+ /* read local status register */
+ dwStatRegVal = VLYNQ_STATUS_REG;
+
+ /* clear pending events */
+ VLYNQ_STATUS_REG = dwStatRegVal;
+
+ /* invoke user callback */
+ if( func != NULL)
+ func( pdev, VLYNQ_LOCAL_DVC, dwStatRegVal);
+
+}
+
+ /* ----------------------------------------------------------------------------
+ * Function : vlynq_remote_module_isr()
+ * Description: This ISR is attached to the remote VLYNQ interrupt vector
+ * by the Vlynq Driver when remote interrupts are being handled locally. i.e.
+ * intLocal=1. This ISR handles local Vlynq module status interrupts only
+ * AS a part of this ISR, user callback in VLYNQ_DEV structure
+ * is invoked.
+ * The parameters irq,regs ar unused.
+ * -----------------------------------------------------------------------------
+ */
+static void vlynq_remote_module_isr(void *arg1,void *arg2, void *arg3)
+{
+ VLYNQ_REPORT_CB func;
+ unsigned int dwStatRegVal;
+ VLYNQ_DEV * pdev;
+
+
+ pdev = (VLYNQ_DEV*) arg1;
+
+ /* Callback function is read from the device pointer that is passed as an argument */
+ func = pdev->report_cb;
+
+ /* read local status register */
+ dwStatRegVal = VLYNQ_R_STATUS_REG;
+
+ /* clear pending events */
+ VLYNQ_R_STATUS_REG = dwStatRegVal;
+
+ /* invoke user callback */
+ if( func != NULL)
+ func( pdev, VLYNQ_REMOTE_DVC, dwStatRegVal);
+
+}
+
+/* ----------------------------------------------------------------------------
+ * Function : vlynq_interrupt_get_count()
+ * Description: This function returns the number of times a particular intr
+ * has been invoked.
+ *
+ * It returns 0, if erroneous map_vector is specified or if the corres isr
+ * has not been registered with VLYNQ.
+ */
+unsigned int vlynq_interrupt_get_count(VLYNQ_DEV *pdev,
+ unsigned int map_vector)
+{
+ VLYNQ_INTR_CNTRL_ICB *entry;
+ unsigned int count = 0;
+
+ if (map_vector > (VLYNQ_NUM_INT_BITS-1))
+ return count;
+
+ entry = &(pdev->pIntrCB[map_vector]);
+
+ if (entry)
+ count = entry->isrCount;
+
+ return (count);
+}
+
+
+/* ----------------------------------------------------------------------------
+ * Function : vlynq_install_isr()
+ * Description: This function installs ISR for Vlynq interrupt vector
+ * bits(in IntPending register). This function should be used only when
+ * Vlynq interrupts are being handled locally(remote may be programmed to send
+ * interrupt packets).Also, the int2cfg should be 1 and the least significant
+ * 8 bits of the Interrupt Pointer Register must point to Interrupt
+ * Pending/Set Register).
+ * If host int2cfg=0 and the Interrupt Pointer register contains
+ * the address of the interrupt set register in the interrupt controller
+ * module of the local device , then the ISR for the remote interrupt must be
+ * directly registered with the Interrupt controller and must not use this API
+ * Note: this function simply installs the ISR in ICB It doesnt modify
+ * any register settings
+ */
+int
+vlynq_install_isr(VLYNQ_DEV *pdev,
+ unsigned int map_vector,
+ VLYNQ_INTR_CNTRL_ISR isr,
+ void *arg1, void *arg2, void *arg3)
+{
+ VLYNQ_INTR_CNTRL_ICB *entry;
+
+ if ( (map_vector > (VLYNQ_NUM_INT_BITS-1)) || (isr == NULL) )
+ return VLYNQ_INVALID_ARG;
+
+ entry = &(pdev->pIntrCB[map_vector]);
+
+ if(entry->isr == NULL)
+ {
+ entry->isr = isr;
+ entry->arg1 = arg1;
+ entry->arg2 = arg2;
+ entry->arg3 = arg3;
+ entry->next = NULL;
+ }
+ else
+ {
+ /** No more empty slots,return error */
+ if(pdev->freelist == NULL)
+ return VLYNQ_MEMALLOC_FAIL;
+
+ while(entry->next != NULL)
+ {
+ entry = entry->next;
+ }
+
+ /* Append new node to the chain */
+ entry->next = pdev->freelist;
+ /* Remove the appended node from freelist */
+ pdev->freelist = pdev->freelist->next;
+ entry= entry->next;
+
+ /*** Set the ICB fields ***/
+ entry->isr = isr;
+ entry->arg1 = arg1;
+ entry->arg2 = arg2;
+ entry->arg3 = arg3;
+ entry->next = NULL;
+ }
+
+ return VLYNQ_SUCCESS;
+}
+
+
+
+/* ----------------------------------------------------------------------------
+ * Function : vlynq_uninstall_isr
+ * Description: This function is used to uninstall a previously
+ * registered ISR. In case of shared/chained interrupts, the
+ * void * arg parameter must uniquely identify the ISR to be
+ * uninstalled.
+ * Note: this function simply uninstalls the ISR in ICB
+ * It doesnt modify any register settings
+ */
+int
+vlynq_uninstall_isr(VLYNQ_DEV *pdev,
+ unsigned int map_vector,
+ void *arg1, void *arg2, void *arg3)
+{
+ VLYNQ_INTR_CNTRL_ICB *entry,*temp;
+
+ if (map_vector > (VLYNQ_NUM_INT_BITS-1))
+ return VLYNQ_INVALID_ARG;
+
+ entry = &(pdev->pIntrCB[map_vector]);
+
+ if(entry->isr == NULL )
+ return VLYNQ_ISR_NON_EXISTENT;
+
+ if ( (entry->arg1 == arg1) && (entry->arg2 == arg2) && (entry->arg3 == arg3) )
+ {
+ if(entry->next == NULL)
+ {
+ entry->isr=NULL;
+ return VLYNQ_SUCCESS;
+ }
+ else
+ {
+ temp = entry->next;
+ /* Copy next node in the chain to prim.slot */
+ entry->isr = temp->isr;
+ entry->arg1 = temp->arg1;
+ entry->arg2 = temp->arg2;
+ entry->arg3 = temp->arg3;
+ entry->next = temp->next;
+ /* Free the just copied node */
+ temp->isr = NULL;
+ temp->arg1 = NULL;
+ temp->arg2 = NULL;
+ temp->arg3 = NULL;
+ temp->next = pdev->freelist;
+ pdev->freelist = temp;
+ return VLYNQ_SUCCESS;
+ }
+ }
+ else
+ {
+ temp = entry;
+ while ( (entry = temp->next) != NULL)
+ {
+ if ( (entry->arg1 == arg1) && (entry->arg2 == arg2) && (entry->arg3 == arg3) )
+ {
+ /* remove node from chain */
+ temp->next = entry->next;
+ /* Add the removed node to freelist */
+ entry->isr = NULL;
+ entry->arg1 = NULL;
+ entry->arg2 = NULL;
+ entry->arg3 = NULL;
+ entry->next = pdev->freelist;
+ entry->isrCount = 0;
+ pdev->freelist = entry;
+ return VLYNQ_SUCCESS;
+ }
+ temp = entry;
+ }
+
+ return VLYNQ_ISR_NON_EXISTENT;
+ }
+}
+
+
+
+
+/* ----------------------------------------------------------------------------
+ * function : vlynq_interrupt_vector_set()
+ * description:configures interrupt vector mapping,interrupt type
+ * polarity -all in one go.
+ */
+int
+vlynq_interrupt_vector_set(VLYNQ_DEV *pdev, /* vlynq device */
+ unsigned int int_vector, /* int vector on vlynq device */
+ unsigned int map_vector, /* bit for this interrupt */
+ VLYNQ_DEV_TYPE dev_type, /* local or remote device */
+ VLYNQ_INTR_POLARITY pol, /* polarity of interrupt */
+ VLYNQ_INTR_TYPE type) /* pulsed/level interrupt */
+{
+ volatile unsigned int * vecreg;
+ unsigned int val=0;
+ unsigned int bytemask=0XFF;
+
+ /* use the lower 8 bits of val to set the value , shift it to
+ * appropriate byte position in the ivr and write it to the
+ * corresponding register */
+
+ /* validate the number of interrupts supported */
+ if (int_vector >= VLYNQ_IVR_MAXIVR)
+ return VLYNQ_INVALID_ARG;
+
+ if(map_vector > (VLYNQ_NUM_INT_BITS - 1) )
+ return VLYNQ_INVALID_ARG;
+
+ if (dev_type == VLYNQ_LOCAL_DVC)
+ {
+ vecreg = (volatile unsigned int *) (VLYNQ_IVR_OFFSET(int_vector));
+ }
+ else
+ {
+ vecreg = (volatile unsigned int *) (VLYNQ_R_IVR_OFFSET(int_vector));
+ }
+
+ /* Update the intVector<==> bit position translation table */
+ pdev->vector_map[map_vector] = int_vector;
+
+ /* val has been initialised to zero. we only have to turn on appropriate bits*/
+ if(type == VLYNQ_INTR_PULSED)
+ val |= VLYNQ_IVR_INTTYPE_MASK;
+
+ if(pol == VLYNQ_INTR_ACTIVE_LOW)
+ val |= VLYNQ_IVR_INTPOL_MASK;
+
+ val |= map_vector;
+
+ /** clear the correct byte position and then or val **/
+ *vecreg = (*vecreg) & ( ~(bytemask << ( (int_vector %4)*8) ) );
+
+ /** write to correct byte position in vecreg*/
+ *vecreg = (*vecreg) | (val << ( (int_vector % 4)*8) ) ;
+
+ /* Setting a interrupt vector, leaves the interrupt disabled
+ * which must be enabled subsequently */
+
+ return VLYNQ_SUCCESS;
+}
+
+
+/* ----------------------------------------------------------------------------
+ * Function : vlynq_interrupt_vector_cntl()
+ * Description:enables/disable interrupt
+ */
+int vlynq_interrupt_vector_cntl( VLYNQ_DEV *pdev,
+ unsigned int int_vector,
+ VLYNQ_DEV_TYPE dev_type,
+ unsigned int enable)
+{
+ volatile unsigned int *vecReg;
+ unsigned int val=0;
+ unsigned int intenMask=0x80;
+
+ /* validate the number of interrupts supported */
+ if (int_vector >= VLYNQ_IVR_MAXIVR)
+ return VLYNQ_INVALID_ARG;
+
+ if (dev_type == VLYNQ_LOCAL_DVC)
+ {
+ vecReg = (volatile unsigned int *) (VLYNQ_IVR_OFFSET(int_vector));
+ }
+ else
+ {
+ vecReg = (volatile unsigned int *) (VLYNQ_R_IVR_OFFSET(int_vector));
+ }
+
+ /** Clear the correct byte position and then or val **/
+ *vecReg = (*vecReg) & ( ~(intenMask << ( (int_vector %4)*8) ) );
+
+ if(enable)
+ {
+ val |= VLYNQ_IVR_INTEN_MASK;
+ /** Write to correct byte position in vecReg*/
+ *vecReg = (*vecReg) | (val << ( (int_vector % 4)*8) ) ;
+ }
+
+ return VLYNQ_SUCCESS;
+
+}/* end of function vlynq_interrupt_vector_cntl */
+
+
+
+/* ----------------------------------------------------------------------------
+ * Function : vlynq_interrupt_vector_map()
+ * Description:Configures interrupt vector mapping alone
+ */
+int
+vlynq_interrupt_vector_map( VLYNQ_DEV *pdev,
+ VLYNQ_DEV_TYPE dev_type,
+ unsigned int int_vector,
+ unsigned int map_vector)
+{
+ volatile unsigned int * vecreg;
+ unsigned int val=0;
+ unsigned int bytemask=0x1f; /* mask to turn off bits corresponding to int vector */
+
+ /* use the lower 8 bits of val to set the value , shift it to
+ * appropriate byte position in the ivr and write it to the
+ * corresponding register */
+
+ /* validate the number of interrupts supported */
+ if (int_vector >= VLYNQ_IVR_MAXIVR)
+ return VLYNQ_INVALID_ARG;
+
+ if(map_vector > (VLYNQ_NUM_INT_BITS - 1) )
+ return VLYNQ_INVALID_ARG;
+
+ if (dev_type == VLYNQ_LOCAL_DVC)
+ {
+ vecreg = (volatile unsigned int *) (VLYNQ_IVR_OFFSET(int_vector));
+ }
+ else
+ {
+ vecreg = (volatile unsigned int *) (VLYNQ_R_IVR_OFFSET(int_vector));
+ }
+
+ /* Update the intVector<==> bit position translation table */
+ pdev->vector_map[map_vector] = int_vector;
+
+ /** val has been initialised to zero. we only have to turn on
+ * appropriate bits*/
+ val |= map_vector;
+
+ /** clear the correct byte position and then or val **/
+ *vecreg = (*vecreg) & ( ~(bytemask << ( (int_vector %4)*8) ) );
+
+ /** write to correct byte position in vecreg*/
+ *vecreg = (*vecreg) | (val << ( (int_vector % 4)*8) ) ;
+
+ return VLYNQ_SUCCESS;
+}
+
+
+/* ----------------------------------------------------------------------------
+ * function : vlynq_interrupt_set_polarity()
+ * description:configures interrupt polarity .
+ */
+int
+vlynq_interrupt_set_polarity( VLYNQ_DEV *pdev ,
+ VLYNQ_DEV_TYPE dev_type,
+ unsigned int map_vector,
+ VLYNQ_INTR_POLARITY pol)
+{
+ volatile unsigned int * vecreg;
+ int int_vector;
+ unsigned int val=0;
+ unsigned int bytemask=0x20; /** mask to turn off bits corresponding to int polarity */
+
+ /* get the int_vector from map_vector */
+ int_vector = pdev->vector_map[map_vector];
+
+ if(int_vector == -1)
+ return VLYNQ_INTVEC_MAP_NOT_FOUND;
+
+ /* use the lower 8 bits of val to set the value , shift it to
+ * appropriate byte position in the ivr and write it to the
+ * corresponding register */
+
+ if (dev_type == VLYNQ_LOCAL_DVC)
+ {
+ vecreg = (volatile unsigned int *) (VLYNQ_IVR_OFFSET(int_vector));
+ }
+ else
+ {
+ vecreg = (volatile unsigned int *) (VLYNQ_R_IVR_OFFSET(int_vector));
+ }
+
+ /* val has been initialised to zero. we only have to turn on
+ * appropriate bits, if need be*/
+
+ /** clear the correct byte position and then or val **/
+ *vecreg = (*vecreg) & ( ~(bytemask << ( (int_vector %4)*8) ) );
+
+ if( pol == VLYNQ_INTR_ACTIVE_LOW)
+ {
+ val |= VLYNQ_IVR_INTPOL_MASK;
+ /** write to correct byte position in vecreg*/
+ *vecreg = (*vecreg) | (val << ( (int_vector % 4)*8) ) ;
+ }
+
+ return VLYNQ_SUCCESS;
+}
+
+int vlynq_interrupt_get_polarity( VLYNQ_DEV *pdev ,
+ VLYNQ_DEV_TYPE dev_type,
+ unsigned int map_vector)
+{
+ volatile unsigned int * vecreg;
+ int int_vector;
+ unsigned int val=0;
+
+ /* get the int_vector from map_vector */
+ int_vector = pdev->vector_map[map_vector];
+
+ if (map_vector > (VLYNQ_NUM_INT_BITS-1))
+ return(-1);
+
+ if(int_vector == -1)
+ return VLYNQ_INTVEC_MAP_NOT_FOUND;
+
+ /* use the lower 8 bits of val to set the value , shift it to
+ * appropriate byte position in the ivr and write it to the
+ * corresponding register */
+
+ if (dev_type == VLYNQ_LOCAL_DVC)
+ {
+ vecreg = (volatile unsigned int *) (VLYNQ_IVR_OFFSET(int_vector));
+ }
+ else
+ {
+ vecreg = (volatile unsigned int *) (VLYNQ_R_IVR_OFFSET(int_vector));
+ }
+
+ /** read the information into val **/
+ val = (*vecreg) & ((VLYNQ_IVR_INTPOL_MASK << ( (int_vector %4)*8) ) );
+
+ return (val ? (VLYNQ_INTR_ACTIVE_LOW) : (VLYNQ_INTR_ACTIVE_HIGH));
+}
+
+
+/* ----------------------------------------------------------------------------
+ * function : vlynq_interrupt_set_type()
+ * description:configures interrupt type .
+ */
+int vlynq_interrupt_set_type( VLYNQ_DEV *pdev,
+ VLYNQ_DEV_TYPE dev_type,
+ unsigned int map_vector,
+ VLYNQ_INTR_TYPE type)
+{
+ volatile unsigned int * vecreg;
+ unsigned int val=0;
+ int int_vector;
+
+ /** mask to turn off bits corresponding to interrupt type */
+ unsigned int bytemask=0x40;
+
+ /* get the int_vector from map_vector */
+ int_vector = pdev->vector_map[map_vector];
+ if(int_vector == -1)
+ return VLYNQ_INTVEC_MAP_NOT_FOUND;
+
+ /* use the lower 8 bits of val to set the value , shift it to
+ * appropriate byte position in the ivr and write it to the
+ * corresponding register */
+ if (dev_type == VLYNQ_LOCAL_DVC)
+ {
+ vecreg = (volatile unsigned int *) (VLYNQ_IVR_OFFSET(int_vector));
+ }
+ else
+ {
+ vecreg = (volatile unsigned int *) (VLYNQ_R_IVR_OFFSET(int_vector));
+ }
+
+ /** val has been initialised to zero. we only have to turn on
+ * appropriate bits if need be*/
+
+ /** clear the correct byte position and then or val **/
+ *vecreg = (*vecreg) & ( ~(bytemask << ( (int_vector %4)*8) ) );
+
+ if( type == VLYNQ_INTR_PULSED)
+ {
+ val |= VLYNQ_IVR_INTTYPE_MASK;
+ /** write to correct byte position in vecreg*/
+ *vecreg = (*vecreg) | (val << ( (int_vector % 4)*8) ) ;
+ }
+
+ return VLYNQ_SUCCESS;
+}
+
+/* ----------------------------------------------------------------------------
+ * function : vlynq_interrupt_get_type()
+ * description:returns interrupt type .
+ */
+int vlynq_interrupt_get_type( VLYNQ_DEV *pdev, VLYNQ_DEV_TYPE dev_type,
+ unsigned int map_vector)
+{
+ volatile unsigned int * vecreg;
+ unsigned int val=0;
+ int int_vector;
+
+ if (map_vector > (VLYNQ_NUM_INT_BITS-1))
+ return(-1);
+
+ /* get the int_vector from map_vector */
+ int_vector = pdev->vector_map[map_vector];
+ if(int_vector == -1)
+ return VLYNQ_INTVEC_MAP_NOT_FOUND;
+
+ /* use the lower 8 bits of val to set the value , shift it to
+ * appropriate byte position in the ivr and write it to the
+ * corresponding register */
+ if (dev_type == VLYNQ_LOCAL_DVC)
+ {
+ vecreg = (volatile unsigned int *) (VLYNQ_IVR_OFFSET(int_vector));
+ }
+ else
+ {
+ vecreg = (volatile unsigned int *) (VLYNQ_R_IVR_OFFSET(int_vector));
+ }
+
+ /** Read the correct bit position into val **/
+ val = (*vecreg) & ((VLYNQ_IVR_INTTYPE_MASK << ( (int_vector %4)*8) ) );
+
+ return (val ? (VLYNQ_INTR_PULSED) : (VLYNQ_INTR_LEVEL));
+}
+
+/* ----------------------------------------------------------------------------
+ * function : vlynq_interrupt_enable()
+ * description:Enable interrupt by writing to IVR register.
+ */
+int vlynq_interrupt_enable( VLYNQ_DEV *pdev,
+ VLYNQ_DEV_TYPE dev_type,
+ unsigned int map_vector)
+{
+ volatile unsigned int * vecreg;
+ unsigned int val=0;
+ int int_vector;
+
+ /** mask to turn off bits corresponding to interrupt enable */
+ unsigned int bytemask=0x80;
+
+ /* get the int_vector from map_vector */
+ int_vector = pdev->vector_map[map_vector];
+ if(int_vector == -1)
+ return VLYNQ_INTVEC_MAP_NOT_FOUND;
+
+ /* use the lower 8 bits of val to set the value , shift it to
+ * appropriate byte position in the ivr and write it to the
+ * corresponding register */
+
+ if (dev_type == VLYNQ_LOCAL_DVC)
+ {
+ vecreg = (volatile unsigned int *) (VLYNQ_IVR_OFFSET(int_vector));
+ }
+ else
+ {
+ vecreg = (volatile unsigned int *) (VLYNQ_R_IVR_OFFSET(int_vector));
+ }
+
+ /** val has been initialised to zero. we only have to turn on
+ * bit corresponding to interrupt enable*/
+ val |= VLYNQ_IVR_INTEN_MASK;
+
+ /** clear the correct byte position and then or val **/
+ *vecreg = (*vecreg) & ( ~(bytemask << ( (int_vector %4)*8) ) );
+
+ /** write to correct byte position in vecreg*/
+ *vecreg = (*vecreg) | (val << ( (int_vector % 4)*8) ) ;
+
+ return VLYNQ_SUCCESS;
+}
+
+
+/* ----------------------------------------------------------------------------
+ * function : vlynq_interrupt_disable()
+ * description:Disable interrupt by writing to IVR register.
+ */
+int
+vlynq_interrupt_disable( VLYNQ_DEV *pdev,
+ VLYNQ_DEV_TYPE dev_type,
+ unsigned int map_vector)
+{
+ volatile unsigned int * vecreg;
+ int int_vector;
+
+ /** mask to turn off bits corresponding to interrupt enable */
+ unsigned int bytemask=0x80;
+
+ /* get the int_vector from map_vector */
+ int_vector = pdev->vector_map[map_vector];
+ if(int_vector == -1)
+ return VLYNQ_INTVEC_MAP_NOT_FOUND;
+
+ /* use the lower 8 bits of val to set the value , shift it to
+ * appropriate byte position in the ivr and write it to the
+ * corresponding register */
+ if (dev_type == VLYNQ_LOCAL_DVC)
+ {
+ vecreg = (volatile unsigned int *) (VLYNQ_IVR_OFFSET(int_vector));
+ }
+ else
+ {
+ vecreg = (volatile unsigned int *) (VLYNQ_R_IVR_OFFSET(int_vector));
+ }
+
+ /* We disable the interrupt by simply turning off the bit
+ * corresponding to Interrupt enable.
+ * Clear the interrupt enable bit in the correct byte position **/
+ *vecreg = (*vecreg) & ( ~(bytemask << ( (int_vector %4)*8) ) );
+
+ /* Dont have to set any bit positions */
+
+ return VLYNQ_SUCCESS;
+
+}
+
+
+
+
diff -urN linux.old/drivers/char/Config.in linux.dev/drivers/char/Config.in
--- linux.old/drivers/char/Config.in 2005-07-22 06:47:42.777975272 +0200
+++ linux.dev/drivers/char/Config.in 2005-07-22 06:48:54.359093288 +0200
@@ -192,6 +192,13 @@
tristate 'Total Impact briQ front panel driver' CONFIG_BRIQ_PANEL
fi
+if [ "$CONFIG_AR7" = "y" ]; then
+ bool 'VLYNQ support for the TI SOC' CONFIG_AR7_VLYNQ
+ dep_bool 'VLYNQ clock source Internal' CONFIG_VLYNQ_CLK_LOCAL $CONFIG_AR7_VLYNQ
+
+ define_int CONFIG_AR7_VLYNQ_PORTS 2
+fi
+
source drivers/i2c/Config.in
mainmenu_option next_comment
diff -urN linux.old/drivers/char/Makefile linux.dev/drivers/char/Makefile
--- linux.old/drivers/char/Makefile 2005-07-22 06:47:35.151134728 +0200
+++ linux.dev/drivers/char/Makefile 2005-07-22 06:32:53.360187328 +0200
@@ -191,6 +191,13 @@
endif
#
+# Texas Intruments VLYNQ driver
+#
+
+subdir-$(CONFIG_AR7_VLYNQ) += avalanche_vlynq
+obj-$(CONFIG_AR7_VLYNQ) += avalanche_vlynq/avalanche_vlynq.o
+
+#
# Texas Intruments LED driver
#
obj-$(CONFIG_AR7_LED) += avalanche_led/avalanche_led.o
diff -urN linux.old/include/asm-mips/ar7/vlynq.h linux.dev/include/asm-mips/ar7/vlynq.h
--- linux.old/include/asm-mips/ar7/vlynq.h 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/include/asm-mips/ar7/vlynq.h 2005-07-22 06:32:53.361187176 +0200
@@ -0,0 +1,610 @@
+/***************************************************************************
+**+----------------------------------------------------------------------+**
+**| **** |**
+**| **** |**
+**| ******o*** |**
+**| ********_///_**** |**
+**| ***** /_//_/ **** |**
+**| ** ** (__/ **** |**
+**| ********* |**
+**| **** |**
+**| *** |**
+**| |**
+**| Copyright (c) 2003 Texas Instruments Incorporated |**
+**| ALL RIGHTS RESERVED |**
+**| |**
+**| Permission is hereby granted to licensees of Texas Instruments |**
+**| Incorporated (TI) products to use this computer program for the sole |**
+**| purpose of implementing a licensee product based on TI products. |**
+**| No other rights to reproduce, use, or disseminate this computer |**
+**| program, whether in part or in whole, are granted. |**
+**| |**
+**| TI makes no representation or warranties with respect to the |**
+**| performance of this computer program, and specifically disclaims |**
+**| any responsibility for any damages, special or consequential, |**
+**| connected with the use of this program. |**
+**| |**
+**+----------------------------------------------------------------------+**
+***************************************************************************/
+
+/*********************************************************************************
+ * ------------------------------------------------------------------------------
+ * Module : vlynq_hal.h
+ * Description :
+ * This header file provides the set of functions exported by the
+ * VLYNQ HAL. This file is included from the SOC specific VLYNQ driver wrapper.
+ * ------------------------------------------------------------------------------
+ *********************************************************************************/
+
+#ifndef _VLYNQ_HAL_H_
+#define _VLYNQ_HAL_H_
+
+/* Enable/Disable debug feature */
+#undef VLYNQ_DEBUG
+
+#ifdef VLYNQ_DEBUG /* This needs to be OS abstracted - for testing use vxworks/linux calls */
+#define debugPrint(format,args...)
+#else
+#define debugPrint(format,args...)
+#endif
+
+ /* number of VLYNQ memory regions supported */
+#define VLYNQ_MAX_MEMORY_REGIONS 0x04
+
+ /* Max.number of external interrupt inputs supported by VLYNQ module */
+#define VLYNQ_IVR_MAXIVR 0x08
+
+#define VLYNQ_CLK_DIV_MAX 0x08
+#define VLYNQ_CLK_DIV_MIN 0x01
+
+
+/*** the total number of entries allocated for ICB would be
+ * 32(for 32 bits in IntPending register) + VLYNQ_IVR_CHAIN_SLOTS*/
+#define VLYNQ_IVR_CHAIN_SLOTS 10
+
+
+/* Error defines */
+#define VLYNQ_SUCCESS 0
+
+#define VLYNQ_ERRCODE_BASE 0 /* Chosen by system */
+#define VLYNQ_INVALID_ARG -(VLYNQ_ERRCODE_BASE+1)
+#define VLYNQ_INVALID_DRV_STATE -(VLYNQ_ERRCODE_BASE+2)
+#define VLYNQ_INT_CONFIG_ERR -(VLYNQ_ERRCODE_BASE+3)
+#define VLYNQ_LINK_DOWN -(VLYNQ_ERRCODE_BASE+4)
+#define VLYNQ_MEMALLOC_FAIL -(VLYNQ_ERRCODE_BASE+5)
+#define VLYNQ_ISR_NON_EXISTENT -(VLYNQ_ERRCODE_BASE+6)
+#define VLYNQ_INTVEC_MAP_NOT_FOUND -(VLYNQ_ERRCODE_BASE+7)
+
+/* Vlynq Defines and Macros */
+
+#define VLYNQ_NUM_INT_BITS 32 /* 32 bit interrupt staus register */
+
+/* Base address of module */
+#define VLYNQ_BASE (pdev->module_base)
+
+#define VLYNQ_REMOTE_REGS_OFFSET 0x0080
+
+#define VLYNQ_REV_OFFSET 0x0000
+#define VLYNQ_CTRL_OFFSET 0x0004
+#define VLYNQ_STATUS_OFFSET 0x0008
+#define VLYNQ_INT_STAT_OFFSET 0x0010
+#define VLYNQ_INT_PEND_OFFSET 0x0014
+#define VLYNQ_INT_PTR_OFFSET 0x0018
+#define VLYNQ_TXMAP_OFFSET 0x001c
+
+#define VLYNQ_RX0MAP_SIZE_REG_OFFSET 0x0020
+#define VLYNQ_RX0MAP_OFFSET_REG_OFFSET 0x0024
+
+#define VLYNQ_CHIP_VER_OFFSET 0x0040
+#define VLYNQ_IVR_REGS_OFFSET 0x0060
+
+#define VLYNQ_INT_PENDING_REG_PTR 0x14
+#define VLYNQ_R_INT_PENDING_REG_PTR VLYNQ_REMOTE_REGS_OFFSET + 0x14
+
+#define VLYNQ_REV_REG *((volatile unsigned int *)(VLYNQ_BASE+VLYNQ_REV_OFFSET))
+#define VLYNQ_CTRL_REG *((volatile unsigned int *)(VLYNQ_BASE+VLYNQ_CTRL_OFFSET))
+#define VLYNQ_STATUS_REG *((volatile unsigned int *)(VLYNQ_BASE+VLYNQ_STATUS_OFFSET))
+#define VLYNQ_INT_STAT_REG *((volatile unsigned int *)(VLYNQ_BASE+VLYNQ_INT_STAT_OFFSET))
+#define VLYNQ_INT_PEND_REG *((volatile unsigned int *)(VLYNQ_BASE+VLYNQ_INT_PEND_OFFSET))
+#define VLYNQ_INT_PTR_REG *((volatile unsigned int *)(VLYNQ_BASE+VLYNQ_INT_PTR_OFFSET))
+#define VLYNQ_TXMAP_REG *((volatile unsigned int *)(VLYNQ_BASE+VLYNQ_TXMAP_OFFSET))
+
+/** map takes on values between 1 to VLYNQ_MAX_MEMORY_REGIONS **/
+#define VLYNQ_RXMAP_SIZE_REG(map) \
+ *((volatile unsigned int *)(VLYNQ_BASE+VLYNQ_RX0MAP_SIZE_REG_OFFSET+( (map-1)<<3)))
+
+/** map takes on values between 1 to VLYNQ_MAX_MEMORY_REGIONS **/
+#define VLYNQ_RXMAP_OFFSET_REG(map) \
+ *((volatile unsigned int *)(VLYNQ_BASE+VLYNQ_RX0MAP_OFFSET_REG_OFFSET+( (map-1)<<3)))
+
+#define VLYNQ_CHIP_VER_REG *((volatile unsigned int *)(VLYNQ_BASE+VLYNQ_CHIP_VER_OFFSET))
+
+/* 0 =< ivr <= 31; currently ivr < VLYNQ_IVR_MAXIVR=8) */
+#define VLYNQ_IVR_OFFSET(ivr) \
+ (VLYNQ_BASE + VLYNQ_IVR_REGS_OFFSET +((((unsigned)(ivr)) & 31) & ~3) )
+
+#define VLYNQ_IVR_03TO00_REG *((volatile unsigned int*) (VLYNQ_IVR_OFFSET(0)) )
+#define VLYNQ_IVR_07TO04_REG *((volatile unsigned int*) (VLYNQ_IVR_OFFSET(4)) )
+/*** Can be extended for 11TO08...31TO28 when all 31 are supported**/
+
+#define VLYNQ_IVR_INTEN(ivr) (((unsigned int)(0x80)) << ((((unsigned)(ivr)) % 4) * 8))
+#define VLYNQ_IVR_INTTYPE(ivr) (((unsigned int)(0x40)) << ((((unsigned)(ivr)) % 4) * 8))
+#define VLYNQ_IVR_INTPOL(ivr) (((unsigned int)(0x20)) << ((((unsigned)(ivr)) % 4) * 8))
+#define VLYNQ_IVR_INTVEC(ivr) (((unsigned int)(0x1F)) << ((((unsigned)(ivr)) % 4) * 8))
+#define VLYNQ_IVR_INTALL(ivr) (((unsigned int)(0xFF)) << ((((unsigned)(ivr)) % 4) * 8))
+
+
+
+/*********************************
+ * Remote VLYNQ register set *
+ *********************************/
+
+#define VLYNQ_R_REV_OFFSET 0x0080
+#define VLYNQ_R_CTRL_OFFSET 0x0084
+#define VLYNQ_R_STATUS_OFFSET 0x0088
+#define VLYNQ_R_INT_STAT_OFFSET 0x0090
+#define VLYNQ_R_INT_PEND_OFFSET 0x0094
+#define VLYNQ_R_INT_PTR_OFFSET 0x0098
+#define VLYNQ_R_TXMAP_OFFSET 0x009c
+
+#define VLYNQ_R_RX0MAP_SIZE_REG_OFFSET 0x00A0
+#define VLYNQ_R_RX0MAP_OFFSET_REG_OFFSET 0x00A4
+
+#define VLYNQ_R_CHIP_VER_OFFSET 0x00C0
+#define VLYNQ_R_IVR_REGS_OFFSET 0x00E0
+
+#define VLYNQ_R_REV_REG *((volatile unsigned int *)(VLYNQ_BASE + VLYNQ_R_REV_OFFSET))
+#define VLYNQ_R_CTRL_REG *((volatile unsigned int *)(VLYNQ_BASE + VLYNQ_R_CTRL_OFFSET))
+#define VLYNQ_R_STATUS_REG *((volatile unsigned int *)(VLYNQ_BASE + VLYNQ_R_STATUS_OFFSET))
+#define VLYNQ_R_INT_STAT_REG *((volatile unsigned int *)(VLYNQ_BASE + VLYNQ_R_INT_STAT_OFFSET))
+#define VLYNQ_R_INT_PEND_REG *((volatile unsigned int *)(VLYNQ_BASE + VLYNQ_R_INT_PEND_OFFSET))
+#define VLYNQ_R_INT_PTR_REG *((volatile unsigned int *)(VLYNQ_BASE + VLYNQ_R_INT_PTR_OFFSET))
+#define VLYNQ_R_TXMAP_REG *((volatile unsigned int *)(VLYNQ_BASE + VLYNQ_R_TXMAP_OFFSET))
+
+/** map takes on values between 1 to VLYNQ_MAX_MEMORY_REGIONS **/
+#define VLYNQ_R_RXMAP_SIZE_REG(map) \
+ *((volatile unsigned int *)(VLYNQ_BASE + VLYNQ_R_RX0MAP_SIZE_REG_OFFSET + ((map-1)<<3)))
+
+/** map takes on values between 1 to VLYNQ_MAX_MEMORY_REGIONS **/
+#define VLYNQ_R_RXMAP_OFFSET_REG(map) \
+ *((volatile unsigned int *)(VLYNQ_BASE + VLYNQ_R_RX0MAP_OFFSET_REG_OFFSET + ((map-1)<<3)))
+
+#define VLYNQ_R_CHIP_VER_REG *((volatile unsigned int *)(VLYNQ_BASE + VLYNQ_R_CHIP_VER_OFFSET)
+
+#define VLYNQ_R_IVR_OFFSET(ivr) \
+ (VLYNQ_BASE + VLYNQ_R_IVR_REGS_OFFSET +((((unsigned)(ivr)) & 31) & ~3))
+
+
+/*** Can be extended for 11TO08...31TO28 when all 31 are supported**/
+#define VLYNQ_R_IVR_03TO00_REG *((volatile unsigned int*) (VLYNQ_R_IVR_OFFSET(0)) )
+#define VLYNQ_R_IVR_07TO04_REG *((volatile unsigned int*) (VLYNQ_R_IVR_OFFSET(4)) )
+
+
+/****End of remote register set definition******/
+
+
+/*** Masks for individual register fields ***/
+
+#define VLYNQ_MODULE_ID_MASK 0xffff0000
+#define VLYNQ_MAJOR_REV_MASK 0x0000ff00
+#define VLYNQ_MINOR_REV_MASK 0x000000ff
+
+
+#define VLYNQ_CTL_ILOOP_MASK 0x00000002
+#define VLYNQ_CTL_INT2CFG_MASK 0x00000080
+#define VLYNQ_CTL_INTVEC_MASK 0x00001f00
+#define VLYNQ_CTL_INTEN_MASK 0x00002000
+#define VLYNQ_CTL_INTLOCAL_MASK 0x00004000
+#define VLYNQ_CTL_CLKDIR_MASK 0x00008000
+#define VLYNQ_CTL_CLKDIV_MASK 0x00070000
+#define VLYNQ_CTL_MODE_MASK 0x00e00000
+
+
+#define VLYNQ_STS_LINK_MASK 0x00000001 /* Link is active */
+#define VLYNQ_STS_MPEND_MASK 0x00000002 /* Pending master requests */
+#define VLYNQ_STS_SPEND_MASK 0x00000004 /* Pending slave requests */
+#define VLYNQ_STS_NFEMPTY0_MASK 0x00000008 /* Master data FIFO not empty */
+#define VLYNQ_STS_NFEMPTY1_MASK 0x00000010 /* Master command FIFO not empty */
+#define VLYNQ_STS_NFEMPTY2_MASK 0x00000020 /* Slave data FIFO not empty */
+#define VLYNQ_STS_NFEMPTY3_MASK 0x00000040 /* Slave command FIFO not empty */
+#define VLYNQ_STS_LERROR_MASK 0x00000080 /* Local error, w/c */
+#define VLYNQ_STS_RERROR_MASK 0x00000100 /* remote error w/c */
+#define VLYNQ_STS_OFLOW_MASK 0x00000200
+#define VLYNQ_STS_IFLOW_MASK 0x00000400
+#define VLYNQ_STS_MODESUP_MASK 0x00E00000 /* Highest mode supported */
+#define VLYNQ_STS_SWIDTH_MASK 0x07000000 /* Used for reading the width of VLYNQ bus */
+#define VLYNQ_STS_DEBUG_MASK 0xE0000000
+
+#define VLYNQ_CTL_INTVEC_SHIFT 0x08
+#define VLYNQ_CTL_INTEN_SHIFT 0x0D
+#define VLYNQ_CTL_INT2CFG_SHIFT 0x07
+#define VLYNQ_CTL_INTLOCAL_SHIFT 0x0E
+
+#define VLYNQ_CTL_INTFIELDS_CLEAR_MASK 0x7F80
+
+#define VLYNQ_CHIPVER_DEVREV_MASK 0xffff0000
+#define VLYNQ_CHIPVER_DEVID_MASK 0x0000ffff
+
+#define VLYNQ_IVR_INTEN_MASK 0x80
+#define VLYNQ_IVR_INTTYPE_MASK 0x40
+#define VLYNQ_IVR_INTPOL_MASK 0x20
+
+
+/**** Helper macros ****/
+
+#define VLYNQ_RESETCB(arg) \
+ if( pdev->reset_cb != NULL) \
+ { \
+ (pdev->reset_cb)(pdev, (arg)); \
+ }
+
+#define VLYNQ_STATUS_FLD_WIDTH(sts) (((sts) & VLYNQ_STS_SWIDTH_MASK) >> 24 )
+#define VLYNQ_CTL_INTVEC(x) (((x) & 31) << 8 )
+
+#define VLYNQ_INRANGE(x,hi,lo) (((x) <= (hi)) && ((x) >= (lo)))
+#define VLYNQ_OUTRANGE(x,hi,lo) (((x) > (hi)) || ((x) < (lo)))
+
+#define VLYNQ_ALIGN4(x) (x)=(x)&(~3)
+
+
+/*************************************
+ * Enums *
+ *************************************/
+
+/* Initialization options define what operations are
+ * undertaken during vlynq module initialization */
+typedef enum
+{
+ /* Init host local memory regions.This allows
+ * local host access remote memory regions */
+ VLYNQ_INIT_LOCAL_MEM_REGIONS = 0x01,
+ /* Init host remote memory regions.This allows
+ * remote device access local memory regions */
+ VLYNQ_INIT_REMOTE_MEM_REGIONS =0x02,
+ /* Init local interrupt config*/
+ VLYNQ_INIT_LOCAL_INTERRUPTS =0x04,
+ /* Init remote interrupt config*/
+ VLYNQ_INIT_REMOTE_INTERRUPTS =0x08,
+ /* Check link during initialization*/
+ VLYNQ_INIT_CHECK_LINK =0x10,
+ /* configure clock during init */
+ VLYNQ_INIT_CONFIG_CLOCK =0x20,
+ /* Clear errors during init */
+ VLYNQ_INIT_CLEAR_ERRORS =0x40,
+ /* All options */
+ VLYNQ_INIT_PERFORM_ALL =0x7F
+}VLYNQ_INIT_OPTIONS;
+
+
+/* VLYNQ_DEV_TYPE identifies local or remote device */
+typedef enum
+{
+ VLYNQ_LOCAL_DVC = 0, /* vlynq local device (SOC's vlynq module) */
+ VLYNQ_REMOTE_DVC = 1 /* vlynq remote device (remote vlynq module) */
+}VLYNQ_DEV_TYPE;
+
+
+/* VLYNQ_CLK_SOURCE identifies the vlynq module clock source */
+typedef enum
+{
+ VLYNQ_CLK_SOURCE_NONE = 0, /* do not initialize clock generator*/
+ VLYNQ_CLK_SOURCE_LOCAL = 1, /* clock is generated by local machine */
+ VLYNQ_CLK_SOURCE_REMOTE = 2 /* clock is generated by remote machine */
+}VLYNQ_CLK_SOURCE;
+
+
+/* VLYNQ_DRV_STATE indicates the current driver state */
+typedef enum
+{
+ VLYNQ_DRV_STATE_UNINIT = 0, /* driver is uninitialized */
+ VLYNQ_DRV_STATE_ININIT = 1, /* VLYNQ is being initialized */
+ VLYNQ_DRV_STATE_RUN = 2, /* VLYNQ is running properly */
+ VLYNQ_DRV_STATE_HOLD = 3, /* driver stopped temporarily */
+ VLYNQ_DRV_STATE_ERROR = 4 /* driver stopped on unrecoverable error */
+}VLYNQ_DRV_STATE;
+
+
+/* VLYNQ_BUS_WIDTH identifies the vlynq module bus width */
+typedef enum
+{
+ VLYNQ_BUS_WIDTH_3 = 3,
+ VLYNQ_BUS_WIDTH_5 = 5,
+ VLYNQ_BUS_WIDTH_7 = 7,
+ VLYNQ_BUS_WIDTH_9 = 9
+}VLYNQ_BUS_WIDTH;
+
+
+/* VLYNQ_LOCAL_INT_CONFIG indicates whether the local vlynq
+ * interrupts are processed by the host or passed on to the
+ * remote device.
+ */
+typedef enum
+{
+ VLYNQ_INT_REMOTE = 0, /* Interrupt packets sent to remote, intlocal=0 */
+ VLYNQ_INT_LOCAL = 1 /* Interrupts are handled locally, intlocal=1 */
+}VLYNQ_LOCAL_INT_CONFIG;
+
+
+/* VLYNQ_REMOTE_INT_CONFIG indicates whether the remote
+ * interrupts are to be handled by the SOC system ISR
+ * or via the vlynq root ISR
+ */
+typedef enum
+{
+ VLYNQ_INT_ROOT_ISR = 0, /* remote ints handled via vlynq root ISR */
+ VLYNQ_INT_SYSTEM_ISR = 1 /* remote ints handled via system ISR */
+}VLYNQ_REMOTE_INT_CONFIG;
+
+
+/* VLYNQ_INTR_POLARITY - vlynq interrupt polarity setting */
+typedef enum
+{
+ VLYNQ_INTR_ACTIVE_HIGH = 0,
+ VLYNQ_INTR_ACTIVE_LOW = 1
+}VLYNQ_INTR_POLARITY;
+
+
+/* VLYNQ_INTR_TYPE - vlynq interrupt type */
+typedef enum
+{
+ VLYNQ_INTR_LEVEL = 0,
+ VLYNQ_INTR_PULSED = 1
+}VLYNQ_INTR_TYPE;
+
+
+/* VLYNQ_RESET_MODE - vlynq reset mode */
+typedef enum
+{
+ VLYNQ_RESET_ASSERT, /* hold device in reset state */
+ VLYNQ_RESET_DEASSERT, /* release device from reset state */
+ VLYNQ_RESET_INITFAIL, /* handle the device in case driver initialization fails */
+ VLYNQ_RESET_LINKESTABLISH, /* handle the device in case driver established link */
+ VLYNQ_RESET_INITFAIL2, /* Driver initialization failed but VLYNQ link exist. */
+ VLYNQ_RESET_INITOK /* Driver initialization finished OK. */
+}VLYNQ_RESET_MODE;
+
+
+
+/*************************************
+ * Typedefs *
+ *************************************/
+
+struct VLYNQ_DEV_t; /*forward declaration*/
+
+/*--------Function Pointers defintions -----------*/
+
+/* prototype for interrupt handler definition */
+typedef void (*VLYNQ_INTR_CNTRL_ISR)(void *arg1,void *arg2,void *arg3);
+
+typedef void
+(*VLYNQ_RESET_REMOTE)(struct VLYNQ_DEV_t *pDev, VLYNQ_RESET_MODE mode);
+
+typedef void
+(*VLYNQ_REPORT_CB)( struct VLYNQ_DEV_t *pDev, /* This VLYNQ */
+ VLYNQ_DEV_TYPE aSrcDvc, /* Event Cause -local/remote? */
+ unsigned int dwStatRegVal); /* Value of the relevant status register */
+
+
+/*-------Structure Definitions------------*/
+
+typedef struct VLYNQ_MEMORY_MAP_t
+{
+ unsigned int Txmap;
+ unsigned int RxOffset[VLYNQ_MAX_MEMORY_REGIONS];
+ unsigned int RxSize[VLYNQ_MAX_MEMORY_REGIONS];
+}VLYNQ_MEMORY_MAP;
+
+
+/**VLYNQ_INTERRUPT_CNTRL - defines the vlynq module interrupt
+ * settings in vlynq Control register */
+typedef struct VLYNQ_INTERRUPT_CNTRL_t
+{
+ /* vlynq interrupts handled by host or remote - maps to
+ * intLocal bit in vlynq control register */
+ VLYNQ_LOCAL_INT_CONFIG intLocal;
+
+ /* remote interrupts handled by vlynq isr or host system
+ * interrupt controller - maps to the int2Cfg in vlynq
+ * control register */
+ VLYNQ_REMOTE_INT_CONFIG intRemote;
+
+ /* bit in pending/set register used for module interrupts*/
+ unsigned int map_vector;
+
+ /* used only if remote interrupts are to be handled by system ISR*/
+ unsigned int intr_ptr;
+
+}VLYNQ_INTERRUPT_CNTRL;
+
+
+/* VLYNQ_INTR_CNTRL_ICB - defines the Interrupt control block which hold
+ * the interrupt dispatch table. The vlynq_root_isr() indexes into this
+ * table to identify the ISR to be invoked
+ */
+typedef struct VLYNQ_INTR_CNTRL_ICB_t
+{
+ VLYNQ_INTR_CNTRL_ISR isr; /* Clear errors during initialization */
+ void *arg1 ; /* Arg 1 for the ISR */
+ void *arg2 ; /* Arg 2 for the ISR */
+ void *arg3 ; /* Arg 3 for the ISR */
+ unsigned int isrCount; /* number of ISR invocations so far */
+ struct VLYNQ_INTR_CNTRL_ICB_t *next;
+}VLYNQ_INTR_CNTRL_ICB;
+
+/* overlay of vlynq register set */
+typedef struct VLYNQ_REG_SET_t
+{
+ unsigned int revision; /*offset : 0x00 */
+ unsigned int control; /* 0x04*/
+ unsigned int status; /* 0x08*/
+ unsigned int pad1; /* 0x0c*/
+ unsigned int intStatus; /*0x10*/
+ unsigned int intPending; /*0x14*/
+ unsigned int intPtr; /*0x18*/
+ unsigned int txMap; /*0x1C*/
+ unsigned int rxSize1; /*0x20*/
+ unsigned int rxOffset1; /*0x24*/
+ unsigned int rxSize2; /*0x28*/
+ unsigned int rxOffset2; /*0x2C*/
+ unsigned int rxSize3; /*0x30*/
+ unsigned int rxOffset3; /*0x34*/
+ unsigned int rxSize4; /*0x38*/
+ unsigned int rxOffset4; /*0x3C*/
+ unsigned int chipVersion; /*0x40*/
+ unsigned int pad2[8];
+ unsigned int ivr30; /*0x60*/
+ unsigned int ivr74; /*0x64*/
+ unsigned int pad3[7];
+}VLYNQ_REG_SET;
+
+
+typedef struct VLYNQ_DEV_t
+{
+ /** module index:1,2,3... used for debugging purposes */
+ unsigned int dev_idx;
+
+ /*VLYNQ module base address */
+ unsigned int module_base;
+
+ /* clock source selection */
+ VLYNQ_CLK_SOURCE clk_source;
+
+ /* Clock Divider.Val=1 to 8. VLYNQ_clk = VBUSCLK/clk_div */
+ unsigned int clk_div;
+
+ /* State of the VLYNQ driver, set to VLYNQ_DRV_STATE_UNINIT, when initializing */
+ VLYNQ_DRV_STATE state;
+
+ /* Valid VLYNQ bus width, filled by driver */
+ VLYNQ_BUS_WIDTH width;
+
+ /* local memory mapping */
+ VLYNQ_MEMORY_MAP local_mem;
+
+ /* remote memory mapping */
+ VLYNQ_MEMORY_MAP remote_mem;
+
+ /* Local module interrupt params */
+ VLYNQ_INTERRUPT_CNTRL local_irq;
+
+ /* remote module interrupt params */
+ VLYNQ_INTERRUPT_CNTRL remote_irq;
+
+ /*** ICB related fields **/
+
+ /* Sizeof of ICB = VLYNQ_NUM_INT_BITS(for 32 bits in IntPending) +
+ * expansion slots for shared interrupts*/
+ VLYNQ_INTR_CNTRL_ICB pIntrCB[VLYNQ_NUM_INT_BITS + VLYNQ_IVR_CHAIN_SLOTS];
+ VLYNQ_INTR_CNTRL_ICB *freelist;
+
+ /* table holding mapping between intVector and the bit position the interrupt
+ * is mapped to(mapVector)*/
+ char vector_map[32];
+
+ /* user callback for vlynq events, NULL if unused */
+ VLYNQ_REPORT_CB report_cb;
+
+ /* user callback for resetting/realeasing remote device */
+ VLYNQ_RESET_REMOTE reset_cb;
+
+ /*** Handles provided for direct access to register set if need be
+ * Must be intialized to point to appropriate address during
+ * vlynq_init */
+ volatile VLYNQ_REG_SET * local;
+ volatile VLYNQ_REG_SET * remote;
+
+ unsigned int intCount; /* number of interrupts generated so far */
+ unsigned int isrCount; /* number of ISR invocations so far */
+}VLYNQ_DEV;
+
+
+typedef struct VLYNQ_ISR_ARGS_t
+{
+ int irq;
+ void * arg;
+ void * regset;
+}VLYNQ_ISR_ARGS;
+
+
+/****************************************
+ * Function Prototypes *
+ * API exported by generic vlynq driver *
+ ****************************************/
+/* Initialization function */
+int vlynq_init( VLYNQ_DEV *pdev, VLYNQ_INIT_OPTIONS options);
+
+/* Check vlynq link */
+unsigned int vlynq_link_check( VLYNQ_DEV * pdev);
+
+/* Set interrupt vector in local or remote device */
+int vlynq_interrupt_vector_set( VLYNQ_DEV *pdev,
+ unsigned int int_vector,
+ unsigned int map_vector,
+ VLYNQ_DEV_TYPE dev,
+ VLYNQ_INTR_POLARITY pol,
+ VLYNQ_INTR_TYPE type);
+
+
+int vlynq_interrupt_vector_cntl( VLYNQ_DEV *pdev,
+ unsigned int int_vector,
+ VLYNQ_DEV_TYPE dev,
+ unsigned int enable);
+
+unsigned int vlynq_interrupt_get_count( VLYNQ_DEV *pdev,
+ unsigned int map_vector);
+
+int vlynq_install_isr( VLYNQ_DEV *pdev,
+ unsigned int map_vector,
+ VLYNQ_INTR_CNTRL_ISR isr,
+ void *arg1, void *arg2, void *arg3);
+
+int vlynq_uninstall_isr( VLYNQ_DEV *pdev,
+ unsigned int map_vector,
+ void *arg1, void *arg2, void *arg3);
+
+
+void vlynq_root_isr(void *arg);
+
+void vlynq_delay(unsigned int clktime);
+
+/* The following functions, provide better granularity in setting
+ * interrupt parameters. (for better support of linux INT Controller)
+ * Note: The interrupt source is identified by "map_vector"- the bit
+ * position in interrupt status register*/
+
+int vlynq_interrupt_vector_map(VLYNQ_DEV * pdev,
+ VLYNQ_DEV_TYPE dev,
+ unsigned int int_vector,
+ unsigned int map_vector);
+
+int vlynq_interrupt_set_polarity(VLYNQ_DEV * pdev,
+ VLYNQ_DEV_TYPE dev,
+ unsigned int map_vector,
+ VLYNQ_INTR_POLARITY pol);
+
+int vlynq_interrupt_get_polarity( VLYNQ_DEV *pdev ,
+ VLYNQ_DEV_TYPE dev_type,
+ unsigned int map_vector);
+
+int vlynq_interrupt_set_type(VLYNQ_DEV * pdev,
+ VLYNQ_DEV_TYPE dev,
+ unsigned int map_vector,
+ VLYNQ_INTR_TYPE type);
+
+int vlynq_interrupt_get_type( VLYNQ_DEV *pdev,
+ VLYNQ_DEV_TYPE dev_type,
+ unsigned int map_vector);
+
+int vlynq_interrupt_enable(VLYNQ_DEV* pdev,
+ VLYNQ_DEV_TYPE dev,
+ unsigned int map_vector);
+
+int vlynq_interrupt_disable(VLYNQ_DEV * pdev,
+ VLYNQ_DEV_TYPE dev,
+ unsigned int map_vector);
+
+
+
+
+
+#endif /* _VLYNQ_HAL_H_ */
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