示例#1
0
文件: if_mc.c 项目: ryo/netbsd-src
hide void
mc_reset_rxdma(struct mc_softc *sc)
{
	dbdma_command_t *cmd = sc->sc_rxdmacmd;
	dbdma_regmap_t *dmareg = sc->sc_rxdma;
	int i;
	u_int8_t maccc;

	/* Disable receiver, reset the DMA channels */
	maccc = NIC_GET(sc, MACE_MACCC);
	NIC_PUT(sc, MACE_MACCC, maccc & ~ENRCV);

	dbdma_reset(dmareg);

	for (i = 0; i < MC_RXDMABUFS; i++) {
		DBDMA_BUILD(cmd, DBDMA_CMD_IN_LAST, 0, ETHERMTU + 22,
			sc->sc_rxbuf_phys + MC_BUFSIZE * i, DBDMA_INT_ALWAYS,
			DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
		cmd++;
	}

	DBDMA_BUILD(cmd, DBDMA_CMD_NOP, 0, 0, 0,
		DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_ALWAYS);
	out32rb(&cmd->d_cmddep, kvtop((void *)sc->sc_rxdmacmd));
	cmd++;

	dbdma_start(dmareg, sc->sc_rxdmacmd);

	sc->sc_tail = 0;

	/* Reenable receiver, reenable DMA */
	NIC_PUT(sc, MACE_MACCC, maccc);
}
示例#2
0
文件: if_mc.c 项目: ryo/netbsd-src
hide void
mc_reset_txdma(struct mc_softc *sc)
{
	dbdma_command_t *cmd = sc->sc_txdmacmd;
	dbdma_regmap_t *dmareg = sc->sc_txdma;
	u_int8_t maccc;

	/* disable transmitter */
	maccc = NIC_GET(sc, MACE_MACCC);
	NIC_PUT(sc, MACE_MACCC, maccc & ~ENXMT);

	dbdma_reset(dmareg);

	DBDMA_BUILD(cmd, DBDMA_CMD_OUT_LAST, 0, 0, sc->sc_txbuf_phys,
		DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
	cmd++;
	DBDMA_BUILD(cmd, DBDMA_CMD_STOP, 0, 0, 0,
		DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);

	out32rb(&dmareg->d_cmdptrhi, 0);
	out32rb(&dmareg->d_cmdptrlo, kvtop((void *)sc->sc_txdmacmd));

	/* restore old value */
	NIC_PUT(sc, MACE_MACCC, maccc);
}
示例#3
0
int
wdc_obio_dma_init(void *v, int channel, int drive, void *databuf,
    size_t datalen, int flags)
{
	struct wdc_obio_softc *sc = v;
	dbdma_command_t *cmdp;
	u_int cmd;
	int i, error;

	if ((error = bus_dmamap_load(sc->sc_dmat, sc->sc_dmamap, databuf,
	    datalen, NULL, BUS_DMA_NOWAIT)) != 0)
		return (error);

	cmdp = sc->sc_dmacmd;
	cmd = (flags & WDC_DMA_READ) ? DBDMA_CMD_IN_MORE : DBDMA_CMD_OUT_MORE;

	for (i = 0; i < sc->sc_dmamap->dm_nsegs; i++, cmdp++) {
		if (i + 1 == sc->sc_dmamap->dm_nsegs)
			cmd = (flags & WDC_DMA_READ) ? DBDMA_CMD_IN_LAST :
			    DBDMA_CMD_OUT_LAST;

		DBDMA_BUILD(cmdp, cmd, 0, sc->sc_dmamap->dm_segs[i].ds_len,
		    sc->sc_dmamap->dm_segs[i].ds_addr,
		    DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
	}

	DBDMA_BUILD(cmdp, DBDMA_CMD_STOP, 0, 0, 0,
		DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);

	return 0;
}
示例#4
0
void
bmac_init_dma(struct bmac_softc *sc)
{
	dbdma_command_t *cmd = sc->sc_rxcmd;
	int i;

	dbdma_reset(sc->sc_txdma);
	dbdma_reset(sc->sc_rxdma);

	bzero(sc->sc_txcmd, BMAC_TXBUFS * sizeof(dbdma_command_t));
	bzero(sc->sc_rxcmd, (BMAC_RXBUFS + 1) * sizeof(dbdma_command_t));

	for (i = 0; i < BMAC_RXBUFS; i++) {
		DBDMA_BUILD(cmd, DBDMA_CMD_IN_LAST, 0, BMAC_BUFLEN,
			sc->sc_rxbuf_pa + BMAC_BUFLEN * i,
			DBDMA_INT_ALWAYS, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
		cmd++;
	}
	DBDMA_BUILD(cmd, DBDMA_CMD_NOP, 0, 0, 0,
		DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_ALWAYS);
	dbdma_st32(&cmd->d_cmddep, sc->sc_rxdbdma->d_paddr);

	sc->sc_rxlast = 0;

	dbdma_start(sc->sc_rxdma, sc->sc_rxdbdma);
}
示例#5
0
文件: esp.c 项目: ajinkya93/OpenBSD
int
esp_dma_setup(struct ncr53c9x_softc *sc, caddr_t *addr, size_t *len,
     int datain, size_t *dmasize)
{
	struct esp_softc *esc = (struct esp_softc *)sc;
	dbdma_command_t *cmdp;
	u_int cmd;
	int i, error;

	cmdp = esc->sc_dmacmd;
	cmd = datain ? DBDMA_CMD_IN_MORE : DBDMA_CMD_OUT_MORE;

	esc->sc_dmaaddr = addr;
	esc->sc_dmalen = len;
	esc->sc_dmasize = *dmasize;

	if ((error = bus_dmamap_load(esc->sc_dmat, esc->sc_dmamap, *addr,
	    *dmasize, NULL, BUS_DMA_NOWAIT)) != 0)
		return (error);

	for (i = 0; i < esc->sc_dmamap->dm_nsegs; i++, cmdp++) {
		if (i + 1 == esc->sc_dmamap->dm_nsegs)
			cmd = datain ? DBDMA_CMD_IN_LAST : DBDMA_CMD_OUT_LAST;
		DBDMA_BUILD(cmdp, cmd, 0, esc->sc_dmamap->dm_segs[i].ds_len,
		    esc->sc_dmamap->dm_segs[i].ds_addr, DBDMA_INT_NEVER,
		    DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
	}
	DBDMA_BUILD(cmdp, DBDMA_CMD_STOP, 0, 0, 0,
	    DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);

	esc->sc_dma_direction = datain ? D_WRITE : 0;

	return 0;
}
示例#6
0
void
mc_reset_rxdma(struct mc_softc *sc)
{
	dbdma_command_t *cmd = sc->sc_rxdmacmd;
	int i;
	u_int8_t maccc;

	/* Disable receiver, reset the DMA channels */
	maccc = NIC_GET(sc, MACE_MACCC);
	NIC_PUT(sc, MACE_MACCC, maccc & ~ENRCV);

	dbdma_reset(sc->sc_rxdma);

	bzero(sc->sc_rxdmacmd, 8 * sizeof(dbdma_command_t));
	for (i = 0; i < MC_RXDMABUFS; i++) {
		DBDMA_BUILD(cmd, DBDMA_CMD_IN_LAST, 0, MACE_BUFLEN,
		    sc->sc_rxbuf_pa + MACE_BUFLEN * i, DBDMA_INT_ALWAYS,
		    DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
		cmd++;
	}

	DBDMA_BUILD(cmd, DBDMA_CMD_NOP, 0, 0, 0,
	    DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_ALWAYS);
	dbdma_st32(&cmd->d_cmddep, sc->sc_rxdbdma->d_paddr);
	cmd++;

	sc->sc_tail = 0;

	dbdma_start(sc->sc_rxdma, sc->sc_rxdbdma);
	/* Reenable receiver, reenable DMA */
	NIC_PUT(sc, MACE_MACCC, maccc);
}
示例#7
0
void
bmac_transmit_packet(struct bmac_softc *sc, paddr_t pa, int len)
{
	dbdma_command_t *cmd = sc->sc_txcmd;

	DBDMA_BUILD(cmd, DBDMA_CMD_OUT_LAST, 0, len, pa,
		DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
	cmd++;
	DBDMA_BUILD(cmd, DBDMA_CMD_STOP, 0, 0, 0,
		DBDMA_INT_ALWAYS, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);

	dbdma_start(sc->sc_txdma, sc->sc_txdbdma);
}
示例#8
0
void
mc_putpacket(struct mc_softc *sc, u_int len)
{
	dbdma_command_t *cmd = sc->sc_txdmacmd;

	DBDMA_BUILD(cmd, DBDMA_CMD_OUT_LAST, 0, len, sc->sc_txbuf_pa,
	   DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
	cmd++;
	DBDMA_BUILD(cmd, DBDMA_CMD_STOP, 0, 0, 0, DBDMA_INT_ALWAYS,
	   DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);

	dbdma_start(sc->sc_txdma, sc->sc_txdbdma);
}
int
wdc_obio_dma_init(void *v, int channel, int drive, void *databuf,
	size_t datalen, int flags)
{
	struct wdc_obio_softc *sc = v;
	vaddr_t va = (vaddr_t)databuf;
	dbdma_command_t *cmdp;
	u_int cmd, offset;
	int read = flags & WDC_DMA_READ;

	cmdp = sc->sc_dmacmd;
	cmd = read ? DBDMA_CMD_IN_MORE : DBDMA_CMD_OUT_MORE;

	offset = va & PGOFSET;

	/* if va is not page-aligned, setup the first page */
	if (offset != 0) {
		int rest = PAGE_SIZE - offset;	/* the rest of the page */

		if (datalen > rest) {		/* if continues to next page */
			DBDMA_BUILD(cmdp, cmd, 0, rest, vtophys(va),
				DBDMA_INT_NEVER, DBDMA_WAIT_NEVER,
				DBDMA_BRANCH_NEVER);
			datalen -= rest;
			va += rest;
			cmdp++;
		}
	}

	/* now va is page-aligned */
	while (datalen > PAGE_SIZE) {
		DBDMA_BUILD(cmdp, cmd, 0, PAGE_SIZE, vtophys(va),
			DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
		datalen -= PAGE_SIZE;
		va += PAGE_SIZE;
		cmdp++;
	}

	/* the last page (datalen <= PAGE_SIZE here) */
	cmd = read ? DBDMA_CMD_IN_LAST : DBDMA_CMD_OUT_LAST;
	DBDMA_BUILD(cmdp, cmd, 0, datalen, vtophys(va),
		DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
	cmdp++;

	DBDMA_BUILD(cmdp, DBDMA_CMD_STOP, 0, 0, 0,
		DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);

	return 0;
}
示例#10
0
void
scsi_curio_dbdma_setup(int unit, vm_offset_t address, vm_size_t len,
			boolean_t isread)
{
	dbdma_command_t	*dmap = scsi_curio_dbdma_commands;


	DBDMA_BUILD(dmap, isread ? DBDMA_CMD_IN_MORE : DBDMA_CMD_OUT_MORE,
			0, len, address, DBDMA_INT_NEVER, DBDMA_BRANCH_NEVER,
			DBDMA_WAIT_NEVER);
	dmap++;

	DBDMA_BUILD(dmap, DBDMA_CMD_STOP, 0, 0, 0, DBDMA_INT_NEVER,
		DBDMA_BRANCH_NEVER, DBDMA_WAIT_NEVER);

	eieio();	/* Make sure things are flushed out.. */

}
示例#11
0
文件: if_mc.c 项目: ryo/netbsd-src
hide void
mc_putpacket(struct mc_softc *sc, u_int len)
{
	dbdma_command_t *cmd = sc->sc_txdmacmd;

	DBDMA_BUILD(cmd, DBDMA_CMD_OUT_LAST, 0, len, sc->sc_txbuf_phys,
		DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);

	dbdma_start(sc->sc_txdma, sc->sc_txdmacmd);
}
示例#12
0
void
xlights_startdma(struct xlights_softc *sc)
{
	dbdma_command_t *cmdp = sc->sc_dmacmd;

	sc->sc_dmasts = 1;
	timeout_add(&sc->sc_tmo, 250);

	DBDMA_BUILD(cmdp, DBDMA_CMD_OUT_LAST, 0,
	    sc->sc_bufmap->dm_segs[0].ds_len,
	    sc->sc_bufmap->dm_segs[0].ds_addr, DBDMA_INT_ALWAYS,
	    DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
	cmdp++;

	DBDMA_BUILD(cmdp, DBDMA_CMD_STOP, 0, 0, 0, DBDMA_INT_NEVER,
	    DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);

	dbdma_start(sc->sc_dma, sc->sc_dbdma);
}
示例#13
0
文件: esp.c 项目: lacombar/netbsd-alc
int
esp_dma_setup(struct ncr53c9x_softc *sc, uint8_t **addr, size_t *len,
    int datain, size_t *dmasize)
{
	struct esp_softc *esc = (struct esp_softc *)sc;
	dbdma_command_t *cmdp;
	u_int cmd;
	u_int va;
	int count, offset;

	cmdp = esc->sc_dmacmd;
	cmd = datain ? DBDMA_CMD_IN_MORE : DBDMA_CMD_OUT_MORE;

	count = *dmasize;

	if (count / PAGE_SIZE > 32)
		panic("%s: transfer size >= 128k", device_xname(sc->sc_dev));

	esc->sc_dmaaddr = addr;
	esc->sc_dmalen = len;
	esc->sc_dmasize = count;

	va = (u_int)*esc->sc_dmaaddr;
	offset = va & PGOFSET;

	/* if va is not page-aligned, setup the first page */
	if (offset != 0) {
		int rest = PAGE_SIZE - offset;	/* the rest of the page */

		if (count > rest) {		/* if continues to next page */
			DBDMA_BUILD(cmdp, cmd, 0, rest, kvtop((void *)va),
				DBDMA_INT_NEVER, DBDMA_WAIT_NEVER,
				DBDMA_BRANCH_NEVER);
			count -= rest;
			va += rest;
			cmdp++;
		}
	}

	/* now va is page-aligned */
	while (count > PAGE_SIZE) {
		DBDMA_BUILD(cmdp, cmd, 0, PAGE_SIZE, kvtop((void *)va),
		    DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
		count -= PAGE_SIZE;
		va += PAGE_SIZE;
		cmdp++;
	}

	/* the last page (count <= PAGE_SIZE here) */
	cmd = datain ? DBDMA_CMD_IN_LAST : DBDMA_CMD_OUT_LAST;
	DBDMA_BUILD(cmdp, cmd , 0, count, kvtop((void *)va),
	    DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
	cmdp++;

	DBDMA_BUILD(cmdp, DBDMA_CMD_STOP, 0, 0, 0,
	    DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);

	esc->sc_dma_direction = datain ? D_WRITE : 0;

	return 0;
}