static void hdlc_fill_fifo(struct fritz_bcs *bcs)
{
struct fritz_adapter *adapter = bcs->adapter;
struct sk_buff *skb = bcs->tx_skb;
int count;
int fifo_size = 32;
unsigned long flags;
unsigned char *p;
DBG(0x40, "hdlc_fill_fifo");
if (!skb)
BUG();
if (skb->len == 0)
BUG();
bcs->ctrl.sr.cmd &= ~HDLC_CMD_XME;
if (bcs->tx_skb->len > fifo_size) {
count = fifo_size;
} else {
count = bcs->tx_skb->len;
if (bcs->mode != L1_MODE_TRANS)
bcs->ctrl.sr.cmd |= HDLC_CMD_XME;
}
DBG(0x40, "hdlc_fill_fifo %d/%d", count, bcs->tx_skb->len);
p = bcs->tx_skb->data;
skb_pull(bcs->tx_skb, count);
bcs->tx_cnt += count;
bcs->ctrl.sr.xml = ((count == fifo_size) ? 0 : count);
switch (adapter->type) {
case AVM_FRITZ_PCI:
spin_lock_irqsave(&adapter->hw_lock, flags);
// sets the correct AVM_INDEX, too
__fcpci_write_ctrl(bcs, 3);
outsl(adapter->io + AVM_DATA + HDLC_FIFO,
p, (count + 3) / 4);
spin_unlock_irqrestore(&adapter->hw_lock, flags);
break;
case AVM_FRITZ_PCIV2:
fcpci2_write_ctrl(bcs, 3);
outsl(adapter->io +
(bcs->channel ? AVM_HDLC_FIFO_2 : AVM_HDLC_FIFO_1),
p, (count + 3) / 4);
break;
case AVM_FRITZ_PNP:
spin_lock_irqsave(&adapter->hw_lock, flags);
// sets the correct AVM_INDEX, too
__fcpnp_write_ctrl(bcs, 3);
outsb(adapter->io + AVM_DATA, p, count);
spin_unlock_irqrestore(&adapter->hw_lock, flags);
break;
}
}
void playSound(void)
{
int i;
//遍历声卡DMA的描述符列表，初始化每一个描述符buf指向缓冲队列中第一个音乐的数据块
//每个数据块大小: DMA_BUF_SIZE
for (i = 0; i < DMA_BUF_NUM; i++)
{
descriTable[i].buf = (uint)(soundQueue->data) + i * DMA_BUF_SIZE;
descriTable[i].cmd_len = 0x80000000 + DMA_SMP_NUM;
}
uint base = (uint)descriTable;
//开始播放: PCM_OUT
if ((soundQueue->flag & PCM_OUT) == PCM_OUT)
{
//init base register
//将内存地址base开始的1个双字写到PO_BDBAR
outsl(PO_BDBAR, &base, 1);
//init last valid index
outb(PO_LVI, 0x1F);
//init control register
//run audio
//enable interrupt
outb(PO_CR, 0x05);
}
//开始录音: Mic_IN
else if ((soundQueue->flag & PCM_IN) == PCM_IN)
{
//init register
//将内存地址base开始的1个双字写到PO_BDBAR
outsl(MC_BDBAR, &base, 1);
//init last valid index
outb(MC_LVI, 0x1F);
//init control register
//run audio
//enable interrupt
outb(MC_CR, 0x05);
}
}
/*
Write 'count' bytes from 'src' buffer to SPI.
*/
unsigned int ssa_spi_write_multi (unsigned char *src, int count)
{
unsigned int quadlet_count;
unsigned char *src_end = &src[count];
if (DEBUG_LEVEL > 1)
printk ("%s: src:0x%08lx, count:%4d\n", __FUNCTION__, (unsigned long) src, count);
while ((((unsigned long) src) & 0x03) && (src < src_end))
writeb (*src++, IO_ADDRESS_EPLD_BASE);
quadlet_count = ((src_end - src) / 4);
outsl (IO_ADDRESS_EPLD_BASE, src, quadlet_count);
src += (quadlet_count * 4);
while (src < src_end)
writeb (*src++, IO_ADDRESS_EPLD_BASE);
return 0;
}
/*
* This is used for most PIO data transfers *to* the IDE interface
*/
void ide_output_data(ide_drive_t *drive, struct ide_cmd *cmd, void *buf,
unsigned int len)
{
ide_hwif_t *hwif = drive->hwif;
struct ide_io_ports *io_ports = &hwif->io_ports;
unsigned long data_addr = io_ports->data_addr;
unsigned int words = (len + 1) >> 1;
u8 io_32bit = drive->io_32bit;
u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
if (io_32bit) {
unsigned long uninitialized_var(flags);
if ((io_32bit & 2) && !mmio) {
local_irq_save_nort(flags);
ata_vlb_sync(io_ports->nsect_addr);
}
words >>= 1;
if (mmio)
__ide_mm_outsl((void __iomem *)data_addr, buf, words);
else
outsl(data_addr, buf, words);
if ((io_32bit & 2) && !mmio)
local_irq_restore_nort(flags);
if (((len + 1) & 3) < 2)
return;
buf += len & ~3;
words = 1;
}
if (mmio)
__ide_mm_outsw((void __iomem *)data_addr, buf, words);
else
outsw(data_addr, buf, words);
}
static void ide_outsl (unsigned long port, void *addr, u32 count)
{
outsl(port, addr, count);
}
wstdcall void WRAP_EXPORT(WRITE_PORT_BUFFER_ULONG)
(ULONG_PTR port, ULONG *buf, ULONG count)
{
outsl(port, buf, count);
}
static void ioport_write32r(void __iomem *addr, const void *s, unsigned long n)
{
outsl(ADDR2PORT(addr), s, n);
}
static void
ep_if_start(struct ifnet *ifp, struct ifaltq_subque *ifsq)
{
struct ep_softc *sc = ifp->if_softc;
u_int len;
struct mbuf *m;
struct mbuf *top;
int pad;
ASSERT_ALTQ_SQ_DEFAULT(ifp, ifsq);
if (sc->gone) {
ifq_purge(&ifp->if_snd);
return;
}
while (inw(BASE + EP_STATUS) & S_COMMAND_IN_PROGRESS);
if (ifq_is_oactive(&ifp->if_snd)) {
return;
}
crit_enter();
startagain:
/* Sneak a peek at the next packet */
m = ifq_dequeue(&ifp->if_snd, NULL);
if (m == NULL) {
crit_exit();
return;
}
for (len = 0, top = m; m; m = m->m_next)
len += m->m_len;
m = top;
pad = padmap[len & 3];
/*
* The 3c509 automatically pads short packets to minimum ethernet length,
* but we drop packets that are too large. Perhaps we should truncate
* them instead?
*/
if (len + pad > ETHER_MAX_LEN) {
/* packet is obviously too large: toss it */
IFNET_STAT_INC(ifp, oerrors, 1);
m_freem(m);
goto readcheck;
}
if (inw(BASE + EP_W1_FREE_TX) < len + pad + 4) {
/* no room in FIFO */
outw(BASE + EP_COMMAND, SET_TX_AVAIL_THRESH | (len + pad + 4));
/* make sure */
if (inw(BASE + EP_W1_FREE_TX) < len + pad + 4) {
ifq_set_oactive(&ifp->if_snd);
ifq_prepend(&ifp->if_snd, top);
crit_exit();
return;
}
} else {
outw(BASE + EP_COMMAND, SET_TX_AVAIL_THRESH | EP_THRESH_DISABLE);
}
outw(BASE + EP_W1_TX_PIO_WR_1, len);
outw(BASE + EP_W1_TX_PIO_WR_1, 0x0); /* Second dword meaningless */
if (EP_FTST(sc, F_ACCESS_32_BITS)) {
for (top = m; m != NULL; m = m->m_next) {
outsl(BASE + EP_W1_TX_PIO_WR_1, mtod(m, caddr_t),
m->m_len / 4);
if (m->m_len & 3)
outsb(BASE + EP_W1_TX_PIO_WR_1,
mtod(m, caddr_t) + (m->m_len & (~3)),
m->m_len & 3);
}
} else {
for (top = m; m != NULL; m = m->m_next) {
outsw(BASE + EP_W1_TX_PIO_WR_1, mtod(m, caddr_t), m->m_len / 2);
if (m->m_len & 1)
outb(BASE + EP_W1_TX_PIO_WR_1,
*(mtod(m, caddr_t) + m->m_len - 1));
}
}
while (pad--)
outb(BASE + EP_W1_TX_PIO_WR_1, 0); /* Padding */
BPF_MTAP(ifp, top);
ifp->if_timer = 2;
IFNET_STAT_INC(ifp, opackets, 1);
m_freem(top);
/*
* Is another packet coming in? We don't want to overflow the tiny RX
* fifo.
*/
readcheck:
if (inw(BASE + EP_W1_RX_STATUS) & RX_BYTES_MASK) {
/*
* we check if we have packets left, in that case we prepare to come
* back later
*/
if (!ifq_is_empty(&ifp->if_snd))
outw(BASE + EP_COMMAND, SET_TX_AVAIL_THRESH | 8);
crit_exit();
return;
}
goto startagain;
}
void
x86_bus_space_io_write_multi_4(bus_space_handle_t h,
bus_size_t o, const u_int32_t *ptr, bus_size_t cnt)
{
outsl(h + o, ptr, cnt);
}
