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/** @file uap_debug.c
* @brief This file contains functions for debug proc file.
*
* Copyright (C) 2008-2009, Marvell International Ltd.
*
* This software file (the "File") is distributed by Marvell International
* Ltd. under the terms of the GNU General Public License Version 2, June 1991
* (the "License"). You may use, redistribute and/or modify this File in
* accordance with the terms and conditions of the License, a copy of which
* is available along with the File in the gpl.txt file or by writing to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307 or on the worldwide web at http://www.gnu.org/licenses/gpl.txt.
*
* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
* this warranty disclaimer.
*
*/
#ifdef CONFIG_PROC_FS
#include "uap_headers.h"
/********************************************************
Local Variables
********************************************************/
#define item_size(n) (sizeof ((uap_adapter *)0)->n)
#define item_addr(n) ((u32) &((uap_adapter *)0)->n)
#define item_dbg_size(n) (sizeof (((uap_adapter *)0)->dbg.n))
#define item_dbg_addr(n) ((u32) &(((uap_adapter *)0)->dbg.n))
#define item_dev_size(n) (sizeof ((uap_dev_t *)0)->n)
#define item_dev_addr(n) ((u32) &((uap_dev_t *)0)->n)
/** MicroAp device offset */
#define OFFSET_UAP_DEV 0x01
/** Bluetooth adapter offset */
#define OFFSET_UAP_ADAPTER 0x02
struct debug_data
{
/** Name */
char name[32];
/** Size */
u32 size;
/** Address */
u32 addr;
/** Offset */
u32 offset;
/** Flag */
u32 flag;
};
/* To debug any member of uap_adapter, simply add one line here.
*/
static struct debug_data items[] = {
{"cmd_sent", item_dev_size(cmd_sent), 0, item_dev_addr(cmd_sent),
OFFSET_UAP_DEV},
{"data_sent", item_dev_size(data_sent), 0, item_dev_addr(data_sent),
OFFSET_UAP_DEV},
{"IntCounter", item_size(IntCounter), 0, item_addr(IntCounter),
OFFSET_UAP_ADAPTER},
{"cmd_pending", item_size(cmd_pending), 0, item_addr(cmd_pending),
OFFSET_UAP_ADAPTER},
{"num_cmd_h2c_fail", item_dbg_size(num_cmd_host_to_card_failure), 0,
item_dbg_addr(num_cmd_host_to_card_failure), OFFSET_UAP_ADAPTER},
{"num_tx_h2c_fail", item_dbg_size(num_tx_host_to_card_failure), 0,
item_dbg_addr(num_tx_host_to_card_failure), OFFSET_UAP_ADAPTER},
{"psmode", item_size(psmode), 0, item_addr(psmode), OFFSET_UAP_ADAPTER},
{"ps_state", item_size(ps_state), 0, item_addr(ps_state),
OFFSET_UAP_ADAPTER},
#ifdef DEBUG_LEVEL1
/*
* XXX: bnewbold: HORRIBLE HACK here, blindly commenting this line out to avoid
* gcc error:
*
* uap_debug.c:77:5: error: initializer element is not constant
* uap_debug.c:77:5: error: (near initialization for ‘items[8].addr’)
*
* Not sure why a pointer to an extern integer is not sufficiently constant;
* don't know what the side-effects of commenting this out may be.
*/
/*
{"drvdbg", sizeof(drvdbg), (u32) & drvdbg, 0, 0}
*/
#endif
};
static int num_of_items = sizeof(items) / sizeof(items[0]);
/********************************************************
Global Variables
********************************************************/
/********************************************************
Local Functions
********************************************************/
/**
* @brief proc read function
*
* @param page pointer to buffer
* @param s read data starting position
* @param off offset
* @param cnt counter
* @param eof end of file flag
* @param data data to output
* @return number of output data
*/
static int
uap_debug_read(char *page, char **s, off_t off, int cnt, int *eof, void *data)
{
int val = 0;
char *p = page;
int i;
struct debug_data *d = (struct debug_data *) data;
if (MODULE_GET == 0)
return UAP_STATUS_FAILURE;
for (i = 0; i < num_of_items; i++) {
if (d[i].size == 1)
val = *((u8 *) d[i].addr);
else if (d[i].size == 2)
val = *((u16 *) d[i].addr);
else if (d[i].size == 4)
val = *((u32 *) d[i].addr);
p += sprintf(p, "%s=%d\n", d[i].name, val);
}
MODULE_PUT;
return p - page;
}
/**
* @brief proc write function
*
* @param f file pointer
* @param buf pointer to data buffer
* @param cnt data number to write
* @param data data to write
* @return number of data
*/
static int
uap_debug_write(struct file *f, const char *buf, unsigned long cnt, void *data)
{
int r, i;
char *pdata;
char *p;
char *p0;
char *p1;
char *p2;
struct debug_data *d = (struct debug_data *) data;
if (MODULE_GET == 0)
return UAP_STATUS_FAILURE;
pdata = (char *) kmalloc(cnt, GFP_KERNEL);
if (pdata == NULL) {
MODULE_PUT;
return 0;
}
if (copy_from_user(pdata, buf, cnt)) {
PRINTM(INFO, "Copy from user failed\n");
kfree(pdata);
MODULE_PUT;
return 0;
}
p0 = pdata;
for (i = 0; i < num_of_items; i++) {
do {
p = strstr(p0, d[i].name);
if (p == NULL)
break;
p1 = strchr(p, '\n');
if (p1 == NULL)
break;
p0 = p1++;
p2 = strchr(p, '=');
if (!p2)
break;
p2++;
r = string_to_number(p2);
if (d[i].size == 1)
*((u8 *) d[i].addr) = (u8) r;
else if (d[i].size == 2)
*((u16 *) d[i].addr) = (u16) r;
else if (d[i].size == 4)
*((u32 *) d[i].addr) = (u32) r;
break;
} while (TRUE);
}
kfree(pdata);
#ifdef DEBUG_LEVEL1
printk(KERN_ALERT "drvdbg = 0x%x\n", drvdbg);
printk(KERN_ALERT "INFO (%08lx) %s\n", DBG_INFO,
(drvdbg & DBG_INFO) ? "X" : "");
printk(KERN_ALERT "WARN (%08lx) %s\n", DBG_WARN,
(drvdbg & DBG_WARN) ? "X" : "");
printk(KERN_ALERT "ENTRY (%08lx) %s\n", DBG_ENTRY,
(drvdbg & DBG_ENTRY) ? "X" : "");
printk(KERN_ALERT "CMD_D (%08lx) %s\n", DBG_CMD_D,
(drvdbg & DBG_CMD_D) ? "X" : "");
printk(KERN_ALERT "DAT_D (%08lx) %s\n", DBG_DAT_D,
(drvdbg & DBG_DAT_D) ? "X" : "");
printk(KERN_ALERT "CMND (%08lx) %s\n", DBG_CMND,
(drvdbg & DBG_CMND) ? "X" : "");
printk(KERN_ALERT "DATA (%08lx) %s\n", DBG_DATA,
(drvdbg & DBG_DATA) ? "X" : "");
printk(KERN_ALERT "ERROR (%08lx) %s\n", DBG_ERROR,
(drvdbg & DBG_ERROR) ? "X" : "");
printk(KERN_ALERT "FATAL (%08lx) %s\n", DBG_FATAL,
(drvdbg & DBG_FATAL) ? "X" : "");
printk(KERN_ALERT "MSG (%08lx) %s\n", DBG_MSG,
(drvdbg & DBG_MSG) ? "X" : "");
#endif
MODULE_PUT;
return cnt;
}
/********************************************************
Global Functions
********************************************************/
/**
* @brief create debug proc file
*
* @param priv pointer uap_private
* @param dev pointer net_device
* @return N/A
*/
void
uap_debug_entry(uap_private * priv, struct net_device *dev)
{
int i;
struct proc_dir_entry *r;
if (priv->proc_entry == NULL)
return;
for (i = 0; i < num_of_items; i++) {
if (items[i].flag & OFFSET_UAP_ADAPTER)
items[i].addr = items[i].offset + (u32) priv->adapter;
if (items[i].flag & OFFSET_UAP_DEV)
items[i].addr = items[i].offset + (u32) & priv->uap_dev;
}
r = create_proc_entry("debug", 0644, priv->proc_entry);
if (r == NULL)
return;
r->data = &items[0];
r->read_proc = uap_debug_read;
r->write_proc = uap_debug_write;
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30)
r->owner = THIS_MODULE;
#endif
}
/**
* @brief remove proc file
*
* @param priv pointer uap_private
* @return N/A
*/
void
uap_debug_remove(uap_private * priv)
{
remove_proc_entry("debug", priv->proc_entry);
}
#endif
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