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_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); }