void b1dma_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
{
avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
avmcard *card = cinfo->card;
skb_queue_tail(&card->dma->send_queue, skb);
b1dma_dispatch_tx(card);
}
static void b1dma_handle_interrupt(avmcard *card)
{
u32 status;
u32 newcsr;
spin_lock(&card->lock);
status = b1dma_readl(card, AMCC_INTCSR);
if ((status & ANY_S5933_INT) == 0) {
spin_unlock(&card->lock);
return;
}
newcsr = card->csr | (status & ALL_INT);
if (status & TX_TC_INT) newcsr &= ~EN_TX_TC_INT;
if (status & RX_TC_INT) newcsr &= ~EN_RX_TC_INT;
b1dma_writel(card, newcsr, AMCC_INTCSR);
if ((status & RX_TC_INT) != 0) {
struct avmcard_dmainfo *dma = card->dma;
u32 rxlen;
if (card->dma->recvlen == 0) {
rxlen = b1dma_readl(card, AMCC_RXLEN);
if (rxlen == 0) {
dma->recvlen = *((u32 *)dma->recvbuf.dmabuf);
rxlen = (dma->recvlen + 3) & ~3;
b1dma_writel(card, dma->recvbuf.dmaaddr + 4, AMCC_RXPTR);
b1dma_writel(card, rxlen, AMCC_RXLEN);
#ifdef AVM_B1DMA_DEBUG
} else {
printk(KERN_ERR "%s: rx not complete (%d).\n",
card->name, rxlen);
#endif
}
} else {
spin_unlock(&card->lock);
b1dma_handle_rx(card);
dma->recvlen = 0;
spin_lock(&card->lock);
b1dma_writel(card, dma->recvbuf.dmaaddr, AMCC_RXPTR);
b1dma_writel(card, 4, AMCC_RXLEN);
}
}
if ((status & TX_TC_INT) != 0) {
if (skb_queue_empty(&card->dma->send_queue))
card->csr &= ~EN_TX_TC_INT;
else
b1dma_dispatch_tx(card);
}
b1dma_writel(card, card->csr, AMCC_INTCSR);
spin_unlock(&card->lock);
}
static void b1dma_queue_tx(avmcard *card, struct sk_buff *skb)
{
unsigned long flags;
spin_lock_irqsave(&card->lock, flags);
skb_queue_tail(&card->dma->send_queue, skb);
if (!(card->csr & EN_TX_TC_INT)) {
b1dma_dispatch_tx(card);
b1dma_writel(card, card->csr, AMCC_INTCSR);
}
spin_unlock_irqrestore(&card->lock, flags);
}
static void queue_pollack(avmcard *card)
{
struct sk_buff *skb;
void *p;
skb = alloc_skb(3, GFP_ATOMIC);
if (!skb) {
printk(KERN_CRIT "%s: no memory, lost poll ack\n",
card->name);
return;
}
p = skb->data;
_put_byte(&p, 0);
_put_byte(&p, 0);
_put_byte(&p, SEND_POLLACK);
skb_put(skb, (__u8 *)p - (__u8 *)skb->data);
skb_queue_tail(&card->dma->send_queue, skb);
b1dma_dispatch_tx(card);
}
void b1dma_release_appl(struct capi_ctr *ctrl, __u16 appl)
{
avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
avmcard *card = cinfo->card;
struct sk_buff *skb;
void *p;
skb = alloc_skb(7, GFP_ATOMIC);
if (!skb) {
printk(KERN_CRIT "%s: no memory, lost release appl.\n",
card->name);
return;
}
p = skb->data;
_put_byte(&p, 0);
_put_byte(&p, 0);
_put_byte(&p, SEND_RELEASE);
_put_word(&p, appl);
skb_put(skb, (__u8 *)p - (__u8 *)skb->data);
skb_queue_tail(&card->dma->send_queue, skb);
b1dma_dispatch_tx(card);
}
static void b1dma_send_init(avmcard *card)
{
struct sk_buff *skb;
void *p;
skb = alloc_skb(15, GFP_ATOMIC);
if (!skb) {
printk(KERN_CRIT "%s: no memory, lost register appl.\n",
card->name);
return;
}
p = skb->data;
_put_byte(&p, 0);
_put_byte(&p, 0);
_put_byte(&p, SEND_INIT);
_put_word(&p, CAPI_MAXAPPL);
_put_word(&p, AVM_NCCI_PER_CHANNEL*30);
_put_word(&p, card->cardnr - 1);
skb_put(skb, (__u8 *)p - (__u8 *)skb->data);
skb_queue_tail(&card->dma->send_queue, skb);
b1dma_dispatch_tx(card);
}
void b1dma_register_appl(struct capi_ctr *ctrl,
__u16 appl,
capi_register_params *rp)
{
avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
avmcard *card = cinfo->card;
struct sk_buff *skb;
int want = rp->level3cnt;
int nconn;
void *p;
if (want > 0) nconn = want;
else nconn = ctrl->profile.nbchannel * -want;
if (nconn == 0) nconn = ctrl->profile.nbchannel;
skb = alloc_skb(23, GFP_ATOMIC);
if (!skb) {
printk(KERN_CRIT "%s: no memory, lost register appl.\n",
card->name);
return;
}
p = skb->data;
_put_byte(&p, 0);
_put_byte(&p, 0);
_put_byte(&p, SEND_REGISTER);
_put_word(&p, appl);
_put_word(&p, 1024 * (nconn+1));
_put_word(&p, nconn);
_put_word(&p, rp->datablkcnt);
_put_word(&p, rp->datablklen);
skb_put(skb, (__u8 *)p - (__u8 *)skb->data);
skb_queue_tail(&card->dma->send_queue, skb);
b1dma_dispatch_tx(card);
ctrl->appl_registered(ctrl, appl);
}
static void b1dma_handle_interrupt(avmcard *card)
{
__u32 status = b1dmainmeml(card->mbase+AMCC_INTCSR);
__u32 newcsr;
if ((status & ANY_S5933_INT) == 0)
return;
newcsr = card->csr | (status & ALL_INT);
if (status & TX_TC_INT) newcsr &= ~EN_TX_TC_INT;
if (status & RX_TC_INT) newcsr &= ~EN_RX_TC_INT;
b1dmaoutmeml(card->mbase+AMCC_INTCSR, newcsr);
if ((status & RX_TC_INT) != 0) {
__u8 *recvbuf = card->dma->recvbuf;
__u32 rxlen;
if (card->dma->recvlen == 0) {
card->dma->recvlen = *((__u32 *)recvbuf);
rxlen = (card->dma->recvlen + 3) & ~3;
b1dmaoutmeml(card->mbase+AMCC_RXPTR,
virt_to_phys(recvbuf+4));
b1dmaoutmeml(card->mbase+AMCC_RXLEN, rxlen);
} else {
b1dma_handle_rx(card);
card->dma->recvlen = 0;
b1dmaoutmeml(card->mbase+AMCC_RXPTR, virt_to_phys(recvbuf));
b1dmaoutmeml(card->mbase+AMCC_RXLEN, 4);
}
}
if ((status & TX_TC_INT) != 0) {
card->csr &= ~EN_TX_TC_INT;
b1dma_dispatch_tx(card);
}
b1dmaoutmeml(card->mbase+AMCC_INTCSR, card->csr);
}
