C++ (Cpp) wait_i2c_reg Examples

Example #1

File: dt3155v4l.c Project: imcek/BEAGLEBONE_BSP

static int
dt3155_start_acq(struct dt3155_priv *pd)
{
	struct vb2_buffer *vb = pd->curr_buf;
	dma_addr_t dma_addr;

	dma_addr = vb2_dma_contig_plane_dma_addr(vb, 0);
	iowrite32(dma_addr, pd->regs + EVEN_DMA_START);
	iowrite32(dma_addr + img_width, pd->regs + ODD_DMA_START);
	iowrite32(img_width, pd->regs + EVEN_DMA_STRIDE);
	iowrite32(img_width, pd->regs + ODD_DMA_STRIDE);
	/* enable interrupts, clear all irq flags */
	iowrite32(FLD_START_EN | FLD_END_ODD_EN | FLD_START |
			FLD_END_EVEN | FLD_END_ODD, pd->regs + INT_CSR);
	iowrite32(FIFO_EN | SRST | FLD_CRPT_ODD | FLD_CRPT_EVEN |
		  FLD_DN_ODD | FLD_DN_EVEN | CAP_CONT_EVEN | CAP_CONT_ODD,
							pd->regs + CSR1);
	wait_i2c_reg(pd->regs);
	write_i2c_reg(pd->regs, CONFIG, pd->config);
	write_i2c_reg(pd->regs, EVEN_CSR, CSR_ERROR | CSR_DONE);
	write_i2c_reg(pd->regs, ODD_CSR, CSR_ERROR | CSR_DONE);

	/*  start the board  */
	write_i2c_reg(pd->regs, CSR2, pd->csr2 | BUSY_EVEN | BUSY_ODD);
	return 0; /* success  */
}

Example #2

File: dt3155.c Project: Lyude/linux

static int dt3155_start_streaming(struct vb2_queue *q, unsigned count)
{
	struct dt3155_priv *pd = vb2_get_drv_priv(q);
	struct vb2_buffer *vb = &pd->curr_buf->vb2_buf;
	dma_addr_t dma_addr;

	pd->sequence = 0;
	dma_addr = vb2_dma_contig_plane_dma_addr(vb, 0);
	iowrite32(dma_addr, pd->regs + EVEN_DMA_START);
	iowrite32(dma_addr + pd->width, pd->regs + ODD_DMA_START);
	iowrite32(pd->width, pd->regs + EVEN_DMA_STRIDE);
	iowrite32(pd->width, pd->regs + ODD_DMA_STRIDE);
	/* enable interrupts, clear all irq flags */
	iowrite32(FLD_START_EN | FLD_END_ODD_EN | FLD_START |
			FLD_END_EVEN | FLD_END_ODD, pd->regs + INT_CSR);
	iowrite32(FIFO_EN | SRST | FLD_CRPT_ODD | FLD_CRPT_EVEN |
		  FLD_DN_ODD | FLD_DN_EVEN | CAP_CONT_EVEN | CAP_CONT_ODD,
							pd->regs + CSR1);
	wait_i2c_reg(pd->regs);
	write_i2c_reg(pd->regs, CONFIG, pd->config);
	write_i2c_reg(pd->regs, EVEN_CSR, CSR_ERROR | CSR_DONE);
	write_i2c_reg(pd->regs, ODD_CSR, CSR_ERROR | CSR_DONE);

	/*  start the board  */
	write_i2c_reg(pd->regs, CSR2, pd->csr2 | BUSY_EVEN | BUSY_ODD);
	return 0;
}