static irqreturn_t c4_handle_interrupt(avmcard *card) { unsigned long flags; u32 status; spin_lock_irqsave(&card->lock, flags); status = c4inmeml(card->mbase+DOORBELL); if (status & DBELL_RESET_HOST) { u_int i; c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x0c); spin_unlock_irqrestore(&card->lock, flags); if (card->nlogcontr == 0) return IRQ_HANDLED; printk(KERN_ERR "%s: unexpected reset\n", card->name); for (i=0; i < card->nr_controllers; i++) { avmctrl_info *cinfo = &card->ctrlinfo[i]; memset(cinfo->version, 0, sizeof(cinfo->version)); spin_lock_irqsave(&card->lock, flags); capilib_release(&cinfo->ncci_head); spin_unlock_irqrestore(&card->lock, flags); capi_ctr_down(&cinfo->capi_ctrl); } card->nlogcontr = 0; return IRQ_HANDLED; } status &= (DBELL_UP_HOST | DBELL_DOWN_HOST); if (!status) { spin_unlock_irqrestore(&card->lock, flags); return IRQ_HANDLED; } c4outmeml(card->mbase+DOORBELL, status); if ((status & DBELL_UP_HOST) != 0) { card->dma->recvlen = c4inmeml(card->mbase+MBOX_UP_LEN); c4outmeml(card->mbase+MBOX_UP_LEN, 0); c4_handle_rx(card); card->dma->recvlen = 0; c4outmeml(card->mbase+MBOX_UP_LEN, card->dma->recvbuf.size); c4outmeml(card->mbase+DOORBELL, DBELL_UP_ARM); } if ((status & DBELL_DOWN_HOST) != 0) { card->csr &= ~DBELL_DOWN_ARM; c4_dispatch_tx(card); } else if (card->csr & DBELL_DOWN_HOST) { if (c4inmeml(card->mbase+MBOX_DOWN_LEN) == 0) { card->csr &= ~DBELL_DOWN_ARM; c4_dispatch_tx(card); } } spin_unlock_irqrestore(&card->lock, flags); return IRQ_HANDLED; }
static void c4_release_appl(struct capi_ctr *ctrl, u16 appl) { avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); avmcard *card = cinfo->card; unsigned long flags; struct sk_buff *skb; void *p; spin_lock_irqsave(&card->lock, flags); capilib_release_appl(&cinfo->ncci_head, appl); spin_unlock_irqrestore(&card->lock, flags); if (ctrl->cnr == card->cardnr) { 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); spin_lock_irqsave(&card->lock, flags); c4_dispatch_tx(card); spin_unlock_irqrestore(&card->lock, flags); } }
static int queue_sendconfig(avmcard *card, char cval[4]) { struct sk_buff *skb; unsigned long flags; void *p; skb = alloc_skb(3+4, GFP_ATOMIC); if (!skb) { printk(KERN_CRIT "%s: no memory, send config\n", card->name); return -ENOMEM; } p = skb->data; _put_byte(&p, 0); _put_byte(&p, 0); _put_byte(&p, SEND_CONFIG); _put_byte(&p, cval[0]); _put_byte(&p, cval[1]); _put_byte(&p, cval[2]); _put_byte(&p, cval[3]); skb_put(skb, (u8 *)p - (u8 *)skb->data); skb_queue_tail(&card->dma->send_queue, skb); spin_lock_irqsave(&card->lock, flags); c4_dispatch_tx(card); spin_unlock_irqrestore(&card->lock, flags); return 0; }
static void c4_send_init(avmcard *card) { struct sk_buff *skb; void *p; unsigned long flags; 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); spin_lock_irqsave(&card->lock, flags); c4_dispatch_tx(card); spin_unlock_irqrestore(&card->lock, flags); }
void c4_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; if (ctrl->cnr == card->cardnr) { 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); c4_dispatch_tx(card); } }
static void c4_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); c4_dispatch_tx(card); }
static void c4_handle_interrupt(avmcard *card) { __u32 status = c4inmeml(card->mbase+DOORBELL); if (status & DBELL_RESET_HOST) { int i; c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x0c); if (card->nlogcontr == 0) return; printk(KERN_ERR "%s: unexpected reset\n", card->name); for (i=0; i < 4; i++) { avmctrl_info *cinfo = &card->ctrlinfo[i]; memset(cinfo->version, 0, sizeof(cinfo->version)); if (cinfo->capi_ctrl) cinfo->capi_ctrl->reseted(cinfo->capi_ctrl); } card->nlogcontr = 0; return; } status &= (DBELL_UP_HOST | DBELL_DOWN_HOST); if (!status) return; c4outmeml(card->mbase+DOORBELL, status); if ((status & DBELL_UP_HOST) != 0) { card->dma->recvlen = c4inmeml(card->mbase+MBOX_UP_LEN); c4outmeml(card->mbase+MBOX_UP_LEN, 0); c4_handle_rx(card); card->dma->recvlen = 0; c4outmeml(card->mbase+MBOX_UP_LEN, card->dma->recvbuf.size); c4outmeml(card->mbase+DOORBELL, DBELL_UP_ARM); } if ((status & DBELL_DOWN_HOST) != 0) { card->csr &= ~DBELL_DOWN_ARM; c4_dispatch_tx(card); } else if (card->csr & DBELL_DOWN_HOST) { if (c4inmeml(card->mbase+MBOX_DOWN_LEN) == 0) { card->csr &= ~DBELL_DOWN_ARM; c4_dispatch_tx(card); } } }
static void c4_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; unsigned long flags; int nconn; void *p; if (ctrl->cnr == card->cardnr) { if (want > 0) nconn = want; else nconn = ctrl->profile.nbchannel * 4 * -want; if (nconn == 0) nconn = ctrl->profile.nbchannel * 4; 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); spin_lock_irqsave(&card->lock, flags); c4_dispatch_tx(card); 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); c4_dispatch_tx(card); }
static u16 c4_send_message(struct capi_ctr *ctrl, struct sk_buff *skb) { avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); avmcard *card = cinfo->card; u16 retval = CAPI_NOERROR; unsigned long flags; spin_lock_irqsave(&card->lock, flags); if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_REQ) { retval = capilib_data_b3_req(&cinfo->ncci_head, CAPIMSG_APPID(skb->data), CAPIMSG_NCCI(skb->data), CAPIMSG_MSGID(skb->data)); } if (retval == CAPI_NOERROR) { skb_queue_tail(&card->dma->send_queue, skb); c4_dispatch_tx(card); } spin_unlock_irqrestore(&card->lock, flags); return retval; }
static int queue_sendconfigword(avmcard *card, __u32 val) { struct sk_buff *skb; void *p; skb = alloc_skb(3+4, GFP_ATOMIC); if (!skb) { printk(KERN_CRIT "%s: no memory, send config\n", card->name); return -ENOMEM; } p = skb->data; _put_byte(&p, 0); _put_byte(&p, 0); _put_byte(&p, SEND_CONFIG); _put_word(&p, val); skb_put(skb, (__u8 *)p - (__u8 *)skb->data); skb_queue_tail(&card->dma->send_queue, skb); c4_dispatch_tx(card); return 0; }