Esempi in C++ (Cpp) per cpdma_chan_stop

Esempio n. 1

File: davinci_cpdma.c Progetto: AiWinters/linux

int cpdma_ctlr_stop(struct cpdma_ctlr *ctlr)
{
	unsigned long flags;
	int i;

	spin_lock_irqsave(&ctlr->lock, flags);
	if (ctlr->state != CPDMA_STATE_ACTIVE) {
		spin_unlock_irqrestore(&ctlr->lock, flags);
		return -EINVAL;
	}

	ctlr->state = CPDMA_STATE_TEARDOWN;

	for (i = 0; i < ARRAY_SIZE(ctlr->channels); i++) {
		if (ctlr->channels[i])
			cpdma_chan_stop(ctlr->channels[i]);
	}

	dma_reg_write(ctlr, CPDMA_RXINTMASKCLEAR, 0xffffffff);
	dma_reg_write(ctlr, CPDMA_TXINTMASKCLEAR, 0xffffffff);

	dma_reg_write(ctlr, CPDMA_TXCONTROL, 0);
	dma_reg_write(ctlr, CPDMA_RXCONTROL, 0);

	ctlr->state = CPDMA_STATE_IDLE;

	spin_unlock_irqrestore(&ctlr->lock, flags);
	return 0;
}

Esempio n. 2

File: davinci_cpdma.c Progetto: G-Ray/xenomai-boneblack-rtnet-drivers

int cpdma_ctlr_stop(struct cpdma_ctlr *ctlr)
{
	rtdm_lockctx_t context;
	int i;

	rtdm_lock_get_irqsave(&ctlr->lock, context);
	if (ctlr->state != CPDMA_STATE_ACTIVE) {
		rtdm_lock_put_irqrestore(&ctlr->lock, context);
		return -EINVAL;
	}

	ctlr->state = CPDMA_STATE_TEARDOWN;

	for (i = 0; i < ARRAY_SIZE(ctlr->channels); i++) {
		if (ctlr->channels[i])
			cpdma_chan_stop(ctlr->channels[i]);
	}

	dma_reg_write(ctlr, CPDMA_RXINTMASKCLEAR, 0xffffffff);
	dma_reg_write(ctlr, CPDMA_TXINTMASKCLEAR, 0xffffffff);

	dma_reg_write(ctlr, CPDMA_TXCONTROL, 0);
	dma_reg_write(ctlr, CPDMA_RXCONTROL, 0);

	ctlr->state = CPDMA_STATE_IDLE;

	rtdm_lock_put_irqrestore(&ctlr->lock, context);
	return 0;
}

Esempio n. 3

File: cpsw.c Progetto: romanbb/android_kernel_lge_d851

static void cpsw_ndo_tx_timeout(struct net_device *ndev)
{
	struct cpsw_priv *priv = netdev_priv(ndev);

	cpsw_err(priv, tx_err, "transmit timeout, restarting dma\n");
	priv->stats.tx_errors++;
	cpsw_intr_disable(priv);
	cpdma_ctlr_int_ctrl(priv->dma, false);
	cpdma_chan_stop(priv->txch);
	cpdma_chan_start(priv->txch);
	cpdma_ctlr_int_ctrl(priv->dma, true);
	cpsw_intr_enable(priv);
	cpdma_ctlr_eoi(priv->dma);
}

Esempio n. 4

int cpdma_chan_destroy(struct cpdma_chan *chan)
{
	struct cpdma_ctlr *ctlr = chan->ctlr;
	unsigned long flags;

	if (!chan)
		return -EINVAL;

	spin_lock_irqsave(&ctlr->lock, flags);
	if (chan->state != CPDMA_STATE_IDLE)
		cpdma_chan_stop(chan);
	ctlr->channels[chan->chan_num] = NULL;
	spin_unlock_irqrestore(&ctlr->lock, flags);
	kfree(chan);
	return 0;
}

Esempio n. 5

File: davinci_cpdma.c Progetto: G-Ray/xenomai-boneblack-rtnet-drivers

int cpdma_chan_destroy(struct cpdma_chan *chan)
{
	struct cpdma_ctlr *ctlr;
	rtdm_lockctx_t context;

	if (!chan)
		return -EINVAL;
	ctlr = chan->ctlr;

	rtdm_lock_get_irqsave(&ctlr->lock, context);
	if (chan->state != CPDMA_STATE_IDLE)
		cpdma_chan_stop(chan);
	ctlr->channels[chan->chan_num] = NULL;
	rtdm_lock_put_irqrestore(&ctlr->lock, context);
	kfree(chan);
	return 0;
}