C++ (Cpp) dump_dma_regs Examples

Example #1

File: spi.c Project: siro20/coreboot

static int tegra_spi_dma_finish(struct tegra_spi_channel *spi)
{
	int ret;
	unsigned int todo;

	struct apb_dma * const apb_dma = (struct apb_dma *)TEGRA_APB_DMA_BASE;

	todo = read32(&spi->dma_in->regs->wcount);

	if (spi->dma_in) {
		while ((read32(&spi->dma_in->regs->dma_byte_sta) < todo) ||
				dma_busy(spi->dma_in))
			;
		dma_stop(spi->dma_in);
		clrbits_le32(&spi->regs->command1, SPI_CMD1_RX_EN);
		/* Disable secure access for the channel. */
		clrbits_le32(&apb_dma->security_reg,
			     SECURITY_EN_BIT(spi->dma_in->num));
		dma_release(spi->dma_in);
	}

	if (spi->dma_out) {
		while ((read32(&spi->dma_out->regs->dma_byte_sta) < todo) ||
				dma_busy(spi->dma_out))
			;
		clrbits_le32(&spi->regs->command1, SPI_CMD1_TX_EN);
		dma_stop(spi->dma_out);
		/* Disable secure access for the channel. */
		clrbits_le32(&apb_dma->security_reg,
			     SECURITY_EN_BIT(spi->dma_out->num));
		dma_release(spi->dma_out);
	}

	if (fifo_error(spi)) {
		printk(BIOS_ERR, "%s: ERROR:\n", __func__);
		dump_dma_regs(spi->dma_out);
		dump_dma_regs(spi->dma_in);
		dump_spi_regs(spi);
		dump_fifo_status(spi);
		ret = -1;
		goto done;
	}

	ret = 0;
done:
	spi->dma_in = NULL;
	spi->dma_out = NULL;
	return ret;
}

Example #2

File: spi.c Project: canistation/coreboot

static int tegra_spi_dma_finish(struct tegra_spi_channel *spi)
{
	int ret;
	unsigned int todo;

	todo = read32(&spi->dma_in->regs->wcount);

	if (spi->dma_in) {
		while ((read32(&spi->dma_in->regs->dma_byte_sta) < todo) ||
				dma_busy(spi->dma_in))
			;	/* this shouldn't take long, no udelay */
		dma_stop(spi->dma_in);
		clrbits_le32(&spi->regs->command1, SPI_CMD1_RX_EN);
		dma_release(spi->dma_in);
	}

	if (spi->dma_out) {
		while ((read32(&spi->dma_out->regs->dma_byte_sta) < todo) ||
				dma_busy(spi->dma_out))
			spi_delay(spi, todo - spi_byte_count(spi));
		clrbits_le32(&spi->regs->command1, SPI_CMD1_TX_EN);
		dma_stop(spi->dma_out);
		dma_release(spi->dma_out);
	}

	if (fifo_error(spi)) {
		printk(BIOS_ERR, "%s: ERROR:\n", __func__);
		dump_dma_regs(spi->dma_out);
		dump_dma_regs(spi->dma_in);
		dump_spi_regs(spi);
		dump_fifo_status(spi);
		ret = -1;
		goto done;
	}

	ret = 0;
done:
	spi->dma_in = NULL;
	spi->dma_out = NULL;
	return ret;
}

Example #3

File: dvma.c Project: archith/camera_project

void __init init_one_dvma(struct sbus_dma *dma, int num_dma)
{
	printk("dma%d: ", num_dma);
	
	dma->next = 0;
	dma->running = 0;      /* No transfers going on as of yet */
	dma->allocated = 0;    /* No one has allocated us yet */
	switch(sbus_readl(dma->regs + DMA_CSR)&DMA_DEVICE_ID) {
	case DMA_VERS0:
		dma->revision = dvmarev0;
		printk("Revision 0 ");
		break;
	case DMA_ESCV1:
		dma->revision = dvmaesc1;
		printk("ESC Revision 1 ");
		break;
	case DMA_VERS1:
		dma->revision = dvmarev1;
		printk("Revision 1 ");
		break;
	case DMA_VERS2:
		dma->revision = dvmarev2;
		printk("Revision 2 ");
		break;
	case DMA_VERHME:
		dma->revision = dvmahme;
		printk("HME DVMA gate array ");
		break;
	case DMA_VERSPLUS:
		dma->revision = dvmarevplus;
		printk("Revision 1 PLUS ");
		break;
	default:
		printk("unknown dma version %08x",
		       sbus_readl(dma->regs + DMA_CSR) & DMA_DEVICE_ID);
		dma->allocated = 1;
		break;
	}
	printk("\n");
#if 0 /* Clutters up the screen */
	dump_dma_regs(dma->regs);
#endif
}