#include "timskmod.h"
void *kmalloc_kernel(size_t siz);
-void *kmalloc_kernel_dma(size_t siz);
-void kfree_kernel(const void *p, size_t siz);
-void *vmalloc_kernel(size_t siz);
-void vfree_kernel(const void *p, size_t siz);
-void *pgalloc_kernel(size_t siz);
-void pgfree_kernel(const void *p, size_t siz);
void myprintk(const char *myDrvName, const char *devname,
const char *template, ...);
-void myprintkx(const char *myDrvName, int devno, const char *template, ...);
/** Print the hexadecimal contents of a data buffer to a supplied print buffer.
* @param dest the print buffer where text characters will be
int srcLen,
int bytesToDumpPerLine);
-/** Print the hexadecimal contents of a data buffer to a supplied print buffer.
- * Assume the data buffer contains 32-bit words in little-endian format,
- * and dump the words with MSB first and LSB last.
- * @param dest the print buffer where text characters will be
- * written
- * @param destSize the maximum number of bytes that can be written
- * to #dest
- * @param src the buffer that contains the data that is to be
- * hex-dumped
- * @param srcWords the number of 32-bit words at #src to be
- & hex-dumped
- * @param wordsToDumpPerLine output will be formatted such that at most this
- * many of the input data words will be represented
- * on each line of output
- * @return the number of text characters written to #dest
- * (not including the trailing '\0' byte)
- * @ingroup internal
- */
-int hexDumpWordsToBuffer(char *dest,
- int destSize,
- char *prefix,
- uint32_t *src,
- int srcWords,
- int wordsToDumpPerLine);
-
-
-/** Use printk to print the hexadecimal contents of a data buffer.
- * See #INFOHEXDRV and #INFOHEXDEV for info.
- * @ingroup internal
- */
-int myPrintkHexDump(char *myDrvName,
- char *devname,
- char *prefix,
- char *src,
- int srcLen,
- int bytesToDumpPerLine);
-
-/** Given as input a number of seconds in #seconds, creates text describing
- * the time within #s. Also breaks down the number of seconds into component
- * days, hours, minutes, and seconds, and stores to *#days, *#hours,
- * *#minutes, and *#secondsx.
- * @param seconds input number of seconds
- * @param days points to a long value where the days component for the
- * days+hours+minutes+seconds representation of #seconds will
- * be stored
- * @param hours points to a long value where the hours component for the
- * days+hours+minutes+seconds representation of #seconds will
- * be stored
- * @param minutes points to a long value where the minutes component for the
- * days+hours+minutes+seconds representation of #seconds will
- * be stored
- * @param secondsx points to a long value where the seconds component for the
- * days+hours+minutes+seconds representation of #seconds will
- * be stored
- * @param s points to a character buffer where a text representation of
- * the #seconds value will be stored. This buffer MUST be
- * large enough to hold the resulting string; to be safe it
- * should be at least 100 bytes long.
- */
-void expandSeconds(time_t seconds,
- long *days, long *hours,
- long *minutes,
- long *secondsx,
- char *s);
-
/*--------------------------------*
*--- GENERAL MESSAGEQ STUFF ---*
*--------------------------------*/
/** the data structure used to hold an arbitrary data item that you want
* to place on a #MESSAGEQ. Declare and initialize as follows:
- * @code
- * MESSAGEQENTRY myEntry;
- * initMessageQEntry (&myEntry, pointerToMyDataItem);
- * @endcode
+ *
* This structure should be considered opaque; the client using it should
* never access the fields directly.
* Refer to these functions for more info:
- * - initMessageQ()
- * - initMessageQEntry()
- * - enqueueMessage()
- * - dequeueMessage()
- * - dequeueMessageNoBlock()
- * - getQueueCount()
*
* @ingroup messageq
*/
* Declare and initialize as follows:
* @code
* MESSAGEQ myQueue;
- * initMessageQ (&myQueue);
* @endcode
* This structure should be considered opaque; the client using it should
* never access the fields directly.
* Refer to these functions for more info:
- * - initMessageQ()
- * - initMessageQEntry()
- * - enqueueMessage()
- * - dequeueMessage()
- * - dequeueMessageNoBlock()
- * - getQueueCount()
*
* @ingroup messageq
*/
u64 iterations, char *buf, size_t bufsize);
char *cyclesToSomethingsPerSecond(u64 cycles, u64 cyclesPerSecond,
u64 somethings, char *buf, size_t bufsize);
-void initMessageQ(MESSAGEQ *q);
-void initMessageQEntry(MESSAGEQENTRY *p, void *data);
-MESSAGEQENTRY *dequeueMessage(MESSAGEQ *q);
-MESSAGEQENTRY *dequeueMessageNoBlock(MESSAGEQ *q);
-void enqueueMessage(MESSAGEQ *q, MESSAGEQENTRY *pEntry);
-size_t getQueueCount(MESSAGEQ *q);
-int waitQueueLen(wait_queue_head_t *q);
-void debugWaitQ(wait_queue_head_t *q);
struct seq_file *seq_file_new_buffer(void *buf, size_t buf_size);
void seq_file_done_buffer(struct seq_file *m);
-void seq_hexdump(struct seq_file *seq, u8 *pfx, void *buf, ulong nbytes);
#endif
BOOL Debug_Malloc_Enabled = FALSE;
-
-
-void myprintk(const char *myDrvName, const char *devname,
- const char *template, ...)
-{
- va_list ap;
- char temp[999];
- char *ptemp = temp;
- char pfx[20];
- char msg[sizeof(pfx) + strlen(myDrvName) + 50];
-
- if (myDrvName == NULL)
- return;
- temp[sizeof(temp)-1] = '\0';
- pfx[0] = '\0';
- msg[0] = '\0';
- va_start(ap, template);
- vsprintf(temp, template, ap);
- va_end(ap);
- if (temp[0] == '<') {
- size_t i = 0;
- for (i = 0; i < sizeof(pfx) - 1; i++) {
- pfx[i] = temp[i];
- if (pfx[i] == '>' || pfx[i] == '\0') {
- if (pfx[i] == '>')
- ptemp = temp+i+1;
- i++;
- break;
- }
- }
- pfx[i] = '\0';
- }
- if (devname == NULL)
- sprintf(msg, "%s%s: ", pfx, myDrvName);
- else
- sprintf(msg, "%s%s[%s]: ", pfx, myDrvName, devname);
- printk(KERN_INFO "%s", msg);
-
- /* The <prefix> applies up until the \n, so we should not include
- * it in these printks. That's why we use <ptemp> to point to the
- * first char after the ">" in the prefix.
- */
- printk(KERN_INFO "%s", ptemp);
- printk("\n");
-
-}
-
-
-
-void myprintkx(const char *myDrvName, int devno, const char *template, ...)
-{
- va_list ap;
- char temp[999];
- char *ptemp = temp;
- char pfx[20];
- char msg[sizeof(pfx) + strlen(myDrvName) + 50];
-
- if (myDrvName == NULL)
- return;
- temp[sizeof(temp)-1] = '\0';
- pfx[0] = '\0';
- msg[0] = '\0';
- va_start(ap, template);
- vsprintf(temp, template, ap);
- va_end(ap);
- if (temp[0] == '<') {
- size_t i = 0;
- for (i = 0; i < sizeof(pfx) - 1; i++) {
- pfx[i] = temp[i];
- if (pfx[i] == '>' || pfx[i] == '\0') {
- if (pfx[i] == '>')
- ptemp = temp+i+1;
- i++;
- break;
- }
- }
- pfx[i] = '\0';
- }
- if (devno < 0)
- sprintf(msg, "%s%s: ", pfx, myDrvName);
- else
- sprintf(msg, "%s%s[%d]: ", pfx, myDrvName, devno);
- printk(KERN_INFO "%s", msg);
-
- /* The <prefix> applies up until the \n, so we should not include
- * it in these printks. That's why we use <ptemp> to point to the
- * first char after the ">" in the prefix.
- */
- printk(KERN_INFO "%s", ptemp);
- printk("\n");
-}
-
-
-
-int hexDumpWordsToBuffer(char *dest,
- int destSize,
- char *prefix,
- uint32_t *src,
- int srcWords,
- int wordsToDumpPerLine)
-{
- int i = 0;
- int pos = 0;
- char hex[(wordsToDumpPerLine * 9) + 1];
- char *line = NULL;
- int linesize = 1000;
- int linelen = 0;
- int currentlen = 0;
- char emptystring[] = "";
- char *pfx = prefix;
- int baseaddr = 0;
- int rc = 0;
- uint8_t b1, b2, b3, b4;
-
- line = vmalloc(linesize);
- if (line == NULL)
- RETINT(currentlen);
-
- if (pfx == NULL || (strlen(pfx) > 50))
- pfx = emptystring;
- memset(hex, ' ', wordsToDumpPerLine * 9);
- hex[wordsToDumpPerLine * 9] = '\0';
- if (destSize > 0)
- dest[0] = '\0';
-
- for (i = 0; i < srcWords; i++) {
- pos = i % wordsToDumpPerLine;
- if ((pos == 0) && (i > 0)) {
- hex[wordsToDumpPerLine * 9] = '\0';
- linelen = sprintf(line, "%s%-6.6x %s\n", pfx,
- baseaddr, hex);
- if ((currentlen) + (linelen) >= destSize)
- RETINT(currentlen);
- strcat(dest, line);
- currentlen += linelen;
- memset(hex, ' ', wordsToDumpPerLine * 9);
- baseaddr = i * 4;
- }
- b1 = (uint8_t)((src[i] >> 24) & 0xff);
- b2 = (uint8_t)((src[i] >> 16) & 0xff);
- b3 = (uint8_t)((src[i] >> 8) & 0xff);
- b4 = (uint8_t)((src[i]) & 0xff);
- sprintf(hex + (pos * 9), "%-2.2x%-2.2x%-2.2x%-2.2x ",
- b1, b2, b3, b4);
- *(hex + (pos * 9) + 9) = ' '; /* get rid of null */
- }
- pos = i%wordsToDumpPerLine;
- if (i > 0) {
- hex[wordsToDumpPerLine * 9] = '\0';
- linelen = sprintf(line, "%s%-6.6x %s\n", pfx, baseaddr, hex);
- if ((currentlen) + (linelen) >= destSize)
- RETINT(currentlen);
- strcat(dest, line);
- currentlen += linelen;
- }
- RETINT(currentlen);
-
-Away:
- if (line)
- vfree(line);
- return rc;
-}
-EXPORT_SYMBOL_GPL(hexDumpWordsToBuffer);
-
-
-
-int myPrintkHexDump(char *myDrvName,
- char *devname,
- char *prefix,
- char *src,
- int srcLen,
- int bytesToDumpPerLine)
-{
- int i = 0;
- int pos = 0;
- char printable[bytesToDumpPerLine + 1];
- char hex[(bytesToDumpPerLine*3) + 1];
- char *line = NULL;
- int linesize = 1000;
- int linelen = 0;
- int currentlen = 0;
- char emptystring[] = "";
- char *pfx = prefix;
- int baseaddr = 0;
- int rc = 0;
- int linecount = 0;
-
- line = vmalloc(linesize);
- if (line == NULL)
- RETINT(currentlen);
-
- if (pfx == NULL || (strlen(pfx) > 50))
- pfx = emptystring;
- memset(hex, ' ', bytesToDumpPerLine * 3);
- hex[bytesToDumpPerLine * 3] = '\0';
- memset(printable, ' ', bytesToDumpPerLine);
- printable[bytesToDumpPerLine] = '\0';
-
- for (i = 0; i < srcLen; i++) {
- pos = i % bytesToDumpPerLine;
- if ((pos == 0) && (i > 0)) {
- hex[bytesToDumpPerLine*3] = '\0';
- linelen = sprintf(line, "%s%-6.6x %s %s",
- pfx, baseaddr, hex, printable);
- myprintk(myDrvName, devname, KERN_INFO "%s", line);
- currentlen += linelen;
- linecount++;
- if ((linecount % 50) == 0)
- SLEEPJIFFIES(10);
- memset(hex, ' ', bytesToDumpPerLine*3);
- memset(printable, ' ', bytesToDumpPerLine);
- baseaddr = i;
- }
- sprintf(hex + (pos * 3), "%-2.2x ", (uint8_t)(src[i]));
- *(hex + (pos * 3) + 3) = ' '; /* get rid of null */
- if (((uint8_t)(src[i]) >= ' ') && (uint8_t)(src[i]) < 127)
- printable[pos] = src[i];
- else
- printable[pos] = '.';
- }
- pos = i%bytesToDumpPerLine;
- if (i > 0) {
- hex[bytesToDumpPerLine*3] = '\0';
- linelen = sprintf(line, "%s%-6.6x %s %s",
- pfx, baseaddr, hex, printable);
- myprintk(myDrvName, devname, KERN_INFO "%s", line);
- currentlen += linelen;
- }
- RETINT(currentlen);
-
-Away:
- if (line)
- vfree(line);
- return rc;
-}
-
-
-
-/** Given as input a number of seconds in #seconds, creates text describing
- the time within #s. Also breaks down the number of seconds into component
- days, hours, minutes, and seconds, and stores to *#days, *#hours,
- *#minutes, and *#secondsx.
- * @param seconds input number of seconds
- * @param days points to a long value where the days component for the
- * days+hours+minutes+seconds representation of #seconds will
- * be stored
- * @param hours points to a long value where the hours component for the
- * days+hours+minutes+seconds representation of #seconds will
- * be stored
- * @param minutes points to a long value where the minutes component for the
- * days+hours+minutes+seconds representation of #seconds will
- * be stored
- * @param secondsx points to a long value where the seconds component for the
- * days+hours+minutes+seconds representation of #seconds will
- * be stored
- * @param s points to a character buffer where a text representation of
- * the #seconds value will be stored. This buffer MUST be
- * large enough to hold the resulting string; to be safe it
- * should be at least 100 bytes long.
- */
-void expandSeconds(time_t seconds, long *days, long *hours, long *minutes,
- long *secondsx, char *s)
-{
- BOOL started = FALSE;
- char buf[99];
-
- *days = seconds / (60*60*24);
- seconds -= ((*days)*(60*60*24));
- *hours = seconds / (60*60);
- seconds -= ((*hours)*(60*60));
- *minutes = seconds/60;
- seconds -= ((*minutes)*60);
- *secondsx = (long)seconds;
- if (s == NULL)
- RETVOID;
- s[0] = '\0';
- if (*days > 0) {
- sprintf(buf, "%lu day", *days);
- strcat(s, buf);
- if (*days != 1)
- strcat(s, "s");
- started = TRUE;
- }
- if ((*hours > 0) || started) {
- if (started)
- strcat(s, ", ");
- sprintf(buf, "%lu hour", *hours);
- strcat(s, buf);
- if (*hours != 1)
- strcat(s, "s");
- started = TRUE;
- }
- if ((*minutes > 0) || started) {
- if (started)
- strcat(s, ", ");
- sprintf(buf, "%lu minute", *minutes);
- strcat(s, buf);
- if (*minutes != 1)
- strcat(s, "s");
- started = TRUE;
- }
- if (started)
- strcat(s, ", ");
- sprintf(buf, "%lu second", *secondsx);
- strcat(s, buf);
- if (*secondsx != 1)
- strcat(s, "s");
-
-Away:
- return;
-}
-
-
-
-/** Initialize a #MESSAGEQ for use (initially it will be empty, of course).
- * @param q the #MESSAGEQ to initialize
- * @ingroup messageq
- */
-void initMessageQ(MESSAGEQ *q)
-{
- q->qHead = NULL;
- q->qTail = NULL;
- sema_init(&q->nQEntries, 0); /* will block initially */
- spin_lock_init(&q->queueLock);
-}
-
-
-
-/** Initialize #p with your data structure in #data,
- * so you can later place #p onto a #MESSAGEQ.
- * @param p the queue entry that will house your data structure
- * @param data a pointer to your data structure that you want
- * to queue
- * @ingroup messageq
- */
-void initMessageQEntry(MESSAGEQENTRY *p, void *data)
-{
- p->data = data;
- p->qNext = NULL;
- p->qPrev = NULL;
-}
-
-
-
-MESSAGEQENTRY *dequeueMessageGuts(MESSAGEQ *q, BOOL canBlock)
-{
- MESSAGEQENTRY *pEntry = NULL;
- MESSAGEQENTRY *rc = NULL;
- BOOL locked = FALSE;
- ulong flags = 0;
- int res = 0;
-
- if (canBlock) {
- /* wait for non-empty q */
- res = down_interruptible(&q->nQEntries);
- if (signal_pending(current)) {
- DEBUGDRV("got signal in dequeueMessage");
- RETPTR(NULL);
- }
- } else if (down_trylock(&q->nQEntries))
- RETPTR(NULL);
- spin_lock_irqsave(&q->queueLock, flags);
- locked = TRUE;
-#ifdef PARANOID
- if (q->qHead == NULL) {
- HUHDRV("unexpected empty queue in getQueue");
- RETPTR(NULL);
- }
-#endif
- pEntry = q->qHead;
- if (pEntry == q->qTail) {
- /* only 1 item in the queue */
- q->qHead = NULL;
- q->qTail = NULL;
- } else {
- q->qHead = pEntry->qNext;
- q->qHead->qPrev = NULL;
- }
- RETPTR(pEntry);
-Away:
- if (locked) {
- spin_unlock_irqrestore(&q->queueLock, flags);
- locked = FALSE;
- }
- return rc;
-}
-
-
-
-/** Remove the next message at the head of the FIFO queue, and return it.
- * Wait for the queue to become non-empty if it is empty when this
- * function is called.
- * @param q the queue where the message is to be obtained from
- * @return the queue entry obtained from the head of the
- * FIFO queue, or NULL iff a signal was received
- * while waiting for the queue to become non-empty
- * @ingroup messageq
- */
-MESSAGEQENTRY *dequeueMessage(MESSAGEQ *q)
-{
- return dequeueMessageGuts(q, TRUE);
-}
-
-
-
-/** Remove the next message at the head of the FIFO queue, and return it.
- * This function will never block (it returns NULL instead).
- * @param q the queue where the message is to be obtained from
- * @return the queue entry obtained from the head of the
- * FIFO queue, or NULL iff the queue is empty.
- * @ingroup messageq
- */
-MESSAGEQENTRY *dequeueMessageNoBlock(MESSAGEQ *q)
-{
- return dequeueMessageGuts(q, FALSE);
-}
-
-
-
-/** Add an entry to a FIFO queue.
- * @param q the queue where the entry is to be added
- * @param pEntry the entry you want to add to the queue
- * @ingroup messageq
- */
-void enqueueMessage(MESSAGEQ *q, MESSAGEQENTRY *pEntry)
-{
- BOOL locked = FALSE;
- ulong flags = 0;
-
- spin_lock_irqsave(&q->queueLock, flags);
- locked = TRUE;
- if (q->qHead == NULL) {
-#ifdef PARANOID
- if (q->qTail != NULL) {
- HUHDRV("qHead/qTail not consistent");
- RETVOID;
- }
-#endif
- q->qHead = pEntry;
- q->qTail = pEntry;
- pEntry->qNext = NULL;
- pEntry->qPrev = NULL;
- } else {
-#ifdef PARANOID
- if (q->qTail == NULL) {
- HUHDRV("qTail should not be NULL here");
- RETVOID;
- }
-#endif
- q->qTail->qNext = pEntry;
- pEntry->qPrev = q->qTail;
- pEntry->qNext = NULL;
- q->qTail = pEntry;
- }
- spin_unlock_irqrestore(&q->queueLock, flags);
- locked = FALSE;
- up(&q->nQEntries);
- RETVOID;
-Away:
- if (locked) {
- spin_unlock_irqrestore(&q->queueLock, flags);
- locked = FALSE;
- }
- return;
-}
-
-
-
-/** Return the number of entries in the queue.
- * @param q the queue to be examined
- * @return the number of entries on #q
- * @ingroup messageq
- */
-size_t getQueueCount(MESSAGEQ *q)
-{
- return (size_t)__sync_fetch_and_add(&(q->nQEntries.count), 0);
-}
-
-
-
-/** Return the number of processes waiting in a standard wait queue.
- * @param q the pointer to the wait queue to be
- * examined
- * @return the number of waiters
- * @ingroup internal
- */
-int waitQueueLen(wait_queue_head_t *q)
-{
- struct list_head *x;
- int count = 0;
- list_for_each(x, &(q->task_list))
- count++;
- return count;
-}
-
-
-
-/** Display information about the processes on a standard wait queue.
- * @param q the pointer to the wait queue to be
- * examined
- * @ingroup internal
- */
-void debugWaitQ(wait_queue_head_t *q)
-{
- DEBUGDRV("task_list.next= %-8.8x",
- ((struct __wait_queue_head *)(q))->task_list.next);
- DEBUGDRV("task_list.prev= %-8.8x",
- ((struct __wait_queue_head *)(q))->task_list.prev);
-}
-
-
-
/** Print the hexadecimal contents of a data buffer to a supplied print buffer.
* @param dest the print buffer where text characters will
* be written
return kmalloc(siz, GFP_KERNEL | __GFP_NORETRY);
}
-void *kmalloc_kernel_dma(size_t siz)
-{
- return kmalloc(siz, GFP_KERNEL | __GFP_NORETRY|GFP_DMA);
-}
-
-void kfree_kernel(const void *p, size_t siz)
-{
- kfree(p);
-}
-
-void *vmalloc_kernel(size_t siz)
-{
- return vmalloc((unsigned long)(siz));
-}
-
-void vfree_kernel(const void *p, size_t siz)
-{
- vfree((void *)(p));
-}
-
-void *pgalloc_kernel(size_t siz)
-{
- return (void *)__get_free_pages(GFP_KERNEL|__GFP_NORETRY,
- get_order(siz));
-}
-
-void pgfree_kernel(const void *p, size_t siz)
-{
- free_pages((ulong)(p), get_order(siz));
-}
-
-
-
/* Use these handy-dandy seq_file_xxx functions if you want to call some
* functions that write stuff into a seq_file, but you actually just want
* to dump that output into a buffer. Use them as follows:
kfree(m);
}
EXPORT_SYMBOL_GPL(seq_file_done_buffer);
-
-
-
-void seq_hexdump(struct seq_file *seq, u8 *pfx, void *buf, ulong nbytes)
-{
- int fmtbufsize = 100 * COVQ(nbytes, 16);
- char *fmtbuf = NULL;
- int i = 0;
- if (buf == NULL) {
- seq_printf(seq, "%s<NULL>\n", pfx);
- return;
- }
- fmtbuf = kmalloc_kernel(fmtbufsize);
- if (fmtbuf == NULL)
- return;
- hexDumpToBuffer(fmtbuf, fmtbufsize, pfx, (char *)(buf), nbytes, 16);
- for (i = 0; fmtbuf[i] != '\0'; i++)
- seq_printf(seq, "%c", fmtbuf[i]);
- kfree(fmtbuf);
-}
projects / deliverable / linux.git / commitdiff
