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-rw-r--r--libertas_uap/uap_debug.c261
1 files changed, 261 insertions, 0 deletions
diff --git a/libertas_uap/uap_debug.c b/libertas_uap/uap_debug.c
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+++ b/libertas_uap/uap_debug.c
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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
+ {"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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