예제 #1
0
static void ace_fsm_tasklet(unsigned long data)
{
	struct ace_device *ace = (void *)data;
	unsigned long flags;

	spin_lock_irqsave(&ace->lock, flags);

	/* Loop over state machine until told to stop */
	ace->fsm_continue_flag = 1;
	while (ace->fsm_continue_flag)
		ace_fsm_dostate(ace);

	spin_unlock_irqrestore(&ace->lock, flags);
}
예제 #2
0
static void ace_stall_timer(unsigned long data)
{
	struct ace_device *ace = (void *)data;
	unsigned long flags;

	dev_warn(ace->dev,
		 "kicking stalled fsm; state=%i task=%i iter=%i dc=%i\n",
		 ace->fsm_state, ace->fsm_task, ace->fsm_iter_num,
		 ace->data_count);
	spin_lock_irqsave(&ace->lock, flags);

	
	mod_timer(&ace->stall_timer, jiffies + HZ);

	
	ace->fsm_continue_flag = 1;
	while (ace->fsm_continue_flag)
		ace_fsm_dostate(ace);

	spin_unlock_irqrestore(&ace->lock, flags);
}
예제 #3
0
static void ace_stall_timer(unsigned long data)
{
	struct ace_device *ace = (void *)data;
	unsigned long flags;

	dev_warn(ace->dev,
		 "kicking stalled fsm; state=%i task=%i iter=%i dc=%i\n",
		 ace->fsm_state, ace->fsm_task, ace->fsm_iter_num,
		 ace->data_count);
	spin_lock_irqsave(&ace->lock, flags);

	/* Rearm the stall timer *before* entering FSM (which may then
	 * delete the timer) */
	mod_timer(&ace->stall_timer, jiffies + HZ);

	/* Loop over state machine until told to stop */
	ace->fsm_continue_flag = 1;
	while (ace->fsm_continue_flag)
		ace_fsm_dostate(ace);

	spin_unlock_irqrestore(&ace->lock, flags);
}
예제 #4
0
static irqreturn_t ace_interrupt(int irq, void *dev_id)
{
	u16 creg;
	struct ace_device *ace = dev_id;

	/* be safe and get the lock */
	spin_lock(&ace->lock);
	ace->in_irq = 1;

	/* clear the interrupt */
	creg = ace_in(ace, ACE_CTRL);
	ace_out(ace, ACE_CTRL, creg | ACE_CTRL_RESETIRQ);
	ace_out(ace, ACE_CTRL, creg);

	/* check for IO failures */
	if (ace_interrupt_checkstate(ace))
		ace->data_result = -EIO;

	if (ace->fsm_task == 0) {
		dev_err(ace->dev,
			"spurious irq; stat=%.8x ctrl=%.8x cmd=%.4x\n",
			ace_in32(ace, ACE_STATUS), ace_in32(ace, ACE_CTRL),
			ace_in(ace, ACE_SECCNTCMD));
		dev_err(ace->dev, "fsm_task=%i fsm_state=%i data_count=%i\n",
			ace->fsm_task, ace->fsm_state, ace->data_count);
	}

	/* Loop over state machine until told to stop */
	ace->fsm_continue_flag = 1;
	while (ace->fsm_continue_flag)
		ace_fsm_dostate(ace);

	/* done with interrupt; drop the lock */
	ace->in_irq = 0;
	spin_unlock(&ace->lock);

	return IRQ_HANDLED;
}
예제 #5
0
static irqreturn_t ace_interrupt(int irq, void *dev_id)
{
	u16 creg;
	struct ace_device *ace = dev_id;

	/*                          */
	spin_lock(&ace->lock);
	ace->in_irq = 1;

	/*                     */
	creg = ace_in(ace, ACE_CTRL);
	ace_out(ace, ACE_CTRL, creg | ACE_CTRL_RESETIRQ);
	ace_out(ace, ACE_CTRL, creg);

	/*                       */
	if (ace_interrupt_checkstate(ace))
		ace->data_result = -EIO;

	if (ace->fsm_task == 0) {
		dev_err(ace->dev,
			"spurious irq; stat=%.8x ctrl=%.8x cmd=%.4x\n",
			ace_in32(ace, ACE_STATUS), ace_in32(ace, ACE_CTRL),
			ace_in(ace, ACE_SECCNTCMD));
		dev_err(ace->dev, "fsm_task=%i fsm_state=%i data_count=%i\n",
			ace->fsm_task, ace->fsm_state, ace->data_count);
	}

	/*                                            */
	ace->fsm_continue_flag = 1;
	while (ace->fsm_continue_flag)
		ace_fsm_dostate(ace);

	/*                                    */
	ace->in_irq = 0;
	spin_unlock(&ace->lock);

	return IRQ_HANDLED;
}