C++ (Cpp) rxb_put Examples

Example #1

/*
  ret < 0  : error
  ret == 0 : no data
  ret > 0  : valid data
*/
static int dpram_ipc_recv_data(struct dpram_link_device *dpld, int dev)
{
	struct link_device *ld = &dpld->ld;
	struct dpram_rxb *rxb;
	u8 __iomem *src = get_rx_buff(dpld, dev);
	u32 qsize = get_rx_buff_size(dpld, dev);
	u32 in = get_rx_head(dpld, dev);
	u32 out = get_rx_tail(dpld, dev);
	u32 rcvd = 0;
	struct mif_irq_map map;

	if (in == out)
		return 0;

	if (dev == IPC_FMT) {
		set_dpram_map(dpld, &map);
		mif_irq_log(ld->mc->msd, map, "ipc_recv", sizeof("ipc_recv"));
	}

	/* Get data length in DPRAM*/
	rcvd = (in > out) ? (in - out) : (qsize - out + in);

	mif_debug("%s: %s qsize[%u] in[%u] out[%u] rcvd[%u]\n",
		ld->name, get_dev_name(dev), qsize, in, out, rcvd);

	/* Check each queue */
	if (!dpram_circ_valid(qsize, in, out)) {
		mif_err("%s: ERR! %s_RXQ invalid (size:%d in:%d out:%d)\n",
			ld->name, get_dev_name(dev), qsize, in, out);
#if 0
		set_rx_head(dpld, dev, 0);
		set_rx_tail(dpld, dev, 0);
#else
		dpram_trigger_force_cp_crash(dpld);
#endif
		return -EINVAL;
	}

	/* Allocate an rxb */
	rxb = rxbq_get_free_rxb(&dpld->rxbq[dev]);
	if (!rxb) {
		mif_info("%s: ERR! %s rxbq_get_free_rxb fail\n",
			ld->name, get_dev_name(dev));
		return -ENOMEM;
	}

	/* Read data from each DPRAM buffer */
	dpram_ipc_read(dpld, dev, rxb_put(rxb, rcvd), src, out, rcvd, qsize);

	/* Calculate and set new out */
	out += rcvd;
	if (out >= qsize)
		out -= qsize;
	set_rx_tail(dpld, dev, out);

	return rcvd;
}

Example #2

File: modem_link_device_dpram.c Project: ARMP/ARMP-i9300

/*
  ret < 0  : error
  ret == 0 : no data
  ret > 0  : valid data
*/
static int dpram_ipc_recv_data_with_rxb(struct dpram_link_device *dpld, int dev)
{
	struct link_device *ld = &dpld->ld;
	struct dpram_rxb *rxb;
	u8 __iomem *src = get_rx_buff(dpld, dev);
	u32 qsize = get_rx_buff_size(dpld, dev);
	u32 in;
	u32 out;
	u32 rcvd;
	struct mif_irq_map map;

	rcvd = dpram_get_rxq_rcvd(dpld, dev, qsize, &in, &out);
	if (rcvd <= 0)
		return rcvd;

	if (dev == IPC_FMT) {
		set_dpram_map(dpld, &map);
		mif_irq_log(ld->mc->msd, map, "ipc_recv", sizeof("ipc_recv"));
	}

	/* Allocate an rxb */
	rxb = rxbq_get_free_rxb(&dpld->rxbq[dev]);
	if (!rxb) {
		mif_info("%s: ERR! %s rxbq_get_free_rxb fail\n",
			ld->name, get_dev_name(dev));
		return -ENOMEM;
	}

	/* Read data from each DPRAM buffer */
	dpram_ipc_read(dpld, dev, rxb_put(rxb, rcvd), src, out, rcvd, qsize);

	/* Calculate and set new out */
	out += rcvd;
	if (out >= qsize)
		out -= qsize;
	set_rx_tail(dpld, dev, out);

	return rcvd;
}