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• This comparison shows the changes necessary to convert path

  → /branches/dynload/kernel/generic/src/console/chardev.c @ 4345

  → /branches/dynload/kernel/generic/src/console/chardev.c @ 4346

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Ignore whitespace Rev 4345 → Rev 4346

/branches/dynload/kernel/generic/src/console/chardev.c
37,42 → 37,62
#include <synch/waitq.h>
#include <synch/spinlock.h>
/** Initialize character device.
/** Initialize input character device.
*
* @param chardev Character device.
* @param op Implementation of character device operations.
* @param indev Input character device.
* @param op Implementation of input character device operations.
*
*/
void chardev_initialize(char *name, chardev_t *chardev,
chardev_operations_t *op)
void indev_initialize(char *name, indev_t *indev,
indev_operations_t *op)
{
chardev->name = name;
waitq_initialize(&chardev->wq);
spinlock_initialize(&chardev->lock, "chardev");
chardev->counter = 0;
chardev->index = 0;
chardev->op = op;
indev->name = name;
waitq_initialize(&indev->wq);
spinlock_initialize(&indev->lock, "indev");
indev->counter = 0;
indev->index = 0;
indev->op = op;
}
/** Push character read from input character device.
*
* @param chardev Character device.
* @param ch Character being pushed.
* @param indev Input character device.
* @param ch Character being pushed.
*
*/
void chardev_push_character(chardev_t *chardev, uint8_t ch)
void indev_push_character(indev_t *indev, uint8_t ch)
{
spinlock_lock(&chardev->lock);
chardev->counter++;
if (chardev->counter == CHARDEV_BUFLEN - 1) {
/* buffer full => disable device interrupt */
chardev->op->suspend(chardev);
ASSERT(indev);
spinlock_lock(&indev->lock);
if (indev->counter == INDEV_BUFLEN - 1) {
/* Buffer full */
spinlock_unlock(&indev->lock);
return;
}
chardev->buffer[chardev->index++] = ch;
chardev->index = chardev->index % CHARDEV_BUFLEN; /* index modulo size of buffer */
waitq_wakeup(&chardev->wq, WAKEUP_FIRST);
spinlock_unlock(&chardev->lock);
indev->counter++;
indev->buffer[indev->index++] = ch;
/* Index modulo size of buffer */
indev->index = indev->index % INDEV_BUFLEN;
waitq_wakeup(&indev->wq, WAKEUP_FIRST);
spinlock_unlock(&indev->lock);
}
/** Initialize output character device.
*
* @param outdev Output character device.
* @param op Implementation of output character device operations.
*
*/
void outdev_initialize(char *name, outdev_t *outdev,
outdev_operations_t *op)
{
outdev->name = name;
spinlock_initialize(&outdev->lock, "outdev");
outdev->op = op;
}
/** @}
*/