Ejemplos de is_channel_open en C++ (Cpp)

Ejemplo n.º 1

Archivo: smd.c Proyecto: jaehyek/lk

int smd_write(smd_channel_info_t *ch, void *data, uint32_t len, int ch_type)
{
	smd_pkt_hdr smd_hdr;
	uint32_t size = 0;

	memset(&smd_hdr, 0, sizeof(smd_pkt_hdr));

	if(len + sizeof(smd_hdr) > ch->fifo_size)
	{
		dprintf(CRITICAL,"%s: len is greater than fifo sz\n", __func__);
		return -1;
	}

	/* Read the indices from smem */
	ch->port_info = smem_get_alloc_entry(SMEM_SMD_BASE_ID + ch->alloc_entry.cid,
                                                        &size);
	if(!ch->port_info)
	{
		dprintf(CRITICAL,"%s: unable to find index in smem\n", __func__);
		ASSERT(0);
	}

	if(!is_channel_open(ch))
	{
		dprintf(CRITICAL,"%s: channel is not in OPEN state \n", __func__);
		return -1;
	}

	if(!ch->port_info->ch0.DTR_DSR)
	{
		dprintf(CRITICAL,"%s: DTR is off\n", __func__);
		return -1;
	}

	/* Clear the data_read flag */
	ch->port_info->ch1.data_read = 0;

	/*copy the local buf to smd buf */
	smd_hdr.pkt_size = len;

	memcpy_to_fifo(ch, (uint32_t *)&smd_hdr, sizeof(smd_hdr));

	memcpy_to_fifo(ch, data, len);

	dsb();

	/* Set the necessary flags */

	ch->port_info->ch0.data_written = 1;
	ch->port_info->ch0.mask_recv_intr = 0;

	dsb();

	smd_notify_rpm();

	return 0;
}

Ejemplo n.º 2

Archivo: smd.c Proyecto: sndnvaps/lk-1

int smd_write(smd_channel_info_t *ch, void *data, uint32_t len, int ch_type)
{
	smd_pkt_hdr smd_hdr;
	uint32_t size = 0;

	memset(&smd_hdr, 0, sizeof(smd_pkt_hdr));

	if(len + sizeof(smd_hdr) > ch->fifo_size)
	{
		dprintf(CRITICAL,"%s: len is greater than fifo sz\n", __func__);
		return -1;
	}

	/* Read the indices from smem */
	ch->port_info = smem_get_alloc_entry(SMEM_SMD_BASE_ID + ch->alloc_entry.cid,
                                                        &size);

	if(!is_channel_open(ch))
	{
		dprintf(CRITICAL,"%s: channel is not in OPEN state \n", __func__);
		return -1;
	}

	if(!ch->port_info->ch0.DTR_DSR)
	{
		dprintf(CRITICAL,"%s: DTR is off\n", __func__);
		return -1;
	}

	/* Clear the data_read flag */
	ch->port_info->ch1.data_read = 0;

	/*copy the local buf to smd buf */
	smd_hdr.pkt_size = len;

	memcpy(ch->send_buf + ch->port_info->ch0.write_index, &smd_hdr, sizeof(smd_hdr));

	memcpy(ch->send_buf + ch->port_info->ch0.write_index + sizeof(smd_hdr), data, len);

	arch_invalidate_cache_range((addr_t)ch->send_buf+ch->port_info->ch0.write_index, sizeof(smd_hdr) + len);

	/* Update write index */
	ch->port_info->ch0.write_index += sizeof(smd_hdr) + len;

	dsb();

	/* Set the necessary flags */

	ch->port_info->ch0.data_written = 1;
	ch->port_info->ch0.mask_recv_intr = 0;

	dsb();

	smd_notify_rpm();

	return 0;
}