diff options
Diffstat (limited to 'drivers/isdn/sc/packet.c')
| -rw-r--r-- | drivers/isdn/sc/packet.c | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/drivers/isdn/sc/packet.c b/drivers/isdn/sc/packet.c deleted file mode 100644 index 2446957..0000000 --- a/drivers/isdn/sc/packet.c +++ /dev/null @@ -1,204 +0,0 @@ -/* $Id: packet.c,v 1.5.8.1 2001/09/23 22:24:59 kai Exp $ - * - * Copyright (C) 1996 SpellCaster Telecommunications Inc. - * - * This software may be used and distributed according to the terms - * of the GNU General Public License, incorporated herein by reference. - * - * For more information, please contact gpl-info@spellcast.com or write: - * - * SpellCaster Telecommunications Inc. - * 5621 Finch Avenue East, Unit #3 - * Scarborough, Ontario Canada - * M1B 2T9 - * +1 (416) 297-8565 - * +1 (416) 297-6433 Facsimile - */ - -#include "includes.h" -#include "hardware.h" -#include "message.h" -#include "card.h" - -int sndpkt(int devId, int channel, int ack, struct sk_buff *data) -{ - LLData ReqLnkWrite; - int status; - int card; - unsigned long len; - - card = get_card_from_id(devId); - - if (!IS_VALID_CARD(card)) { - pr_debug("invalid param: %d is not a valid card id\n", card); - return -ENODEV; - } - - pr_debug("%s: sndpkt: frst = 0x%lx nxt = %d f = %d n = %d\n", - sc_adapter[card]->devicename, - sc_adapter[card]->channel[channel].first_sendbuf, - sc_adapter[card]->channel[channel].next_sendbuf, - sc_adapter[card]->channel[channel].free_sendbufs, - sc_adapter[card]->channel[channel].num_sendbufs); - - if (!sc_adapter[card]->channel[channel].free_sendbufs) { - pr_debug("%s: out of TX buffers\n", - sc_adapter[card]->devicename); - return -EINVAL; - } - - if (data->len > BUFFER_SIZE) { - pr_debug("%s: data overflows buffer size (data > buffer)\n", - sc_adapter[card]->devicename); - return -EINVAL; - } - - ReqLnkWrite.buff_offset = sc_adapter[card]->channel[channel].next_sendbuf * - BUFFER_SIZE + sc_adapter[card]->channel[channel].first_sendbuf; - ReqLnkWrite.msg_len = data->len; /* sk_buff size */ - pr_debug("%s: writing %d bytes to buffer offset 0x%lx\n", - sc_adapter[card]->devicename, - ReqLnkWrite.msg_len, ReqLnkWrite.buff_offset); - memcpy_toshmem(card, (char *)ReqLnkWrite.buff_offset, data->data, ReqLnkWrite.msg_len); - - /* - * sendmessage - */ - pr_debug("%s: sndpkt size=%d, buf_offset=0x%lx buf_indx=%d\n", - sc_adapter[card]->devicename, - ReqLnkWrite.msg_len, ReqLnkWrite.buff_offset, - sc_adapter[card]->channel[channel].next_sendbuf); - - status = sendmessage(card, CEPID, ceReqTypeLnk, ceReqClass1, ceReqLnkWrite, - channel + 1, sizeof(LLData), (unsigned int *)&ReqLnkWrite); - len = data->len; - if (status) { - pr_debug("%s: failed to send packet, status = %d\n", - sc_adapter[card]->devicename, status); - return -1; - } - else { - sc_adapter[card]->channel[channel].free_sendbufs--; - sc_adapter[card]->channel[channel].next_sendbuf = - ++sc_adapter[card]->channel[channel].next_sendbuf == - sc_adapter[card]->channel[channel].num_sendbufs ? 0 : - sc_adapter[card]->channel[channel].next_sendbuf; - pr_debug("%s: packet sent successfully\n", sc_adapter[card]->devicename); - dev_kfree_skb(data); - indicate_status(card, ISDN_STAT_BSENT, channel, (char *)&len); - } - return len; -} - -void rcvpkt(int card, RspMessage *rcvmsg) -{ - LLData newll; - struct sk_buff *skb; - - if (!IS_VALID_CARD(card)) { - pr_debug("invalid param: %d is not a valid card id\n", card); - return; - } - - switch (rcvmsg->rsp_status) { - case 0x01: - case 0x02: - case 0x70: - pr_debug("%s: error status code: 0x%x\n", - sc_adapter[card]->devicename, rcvmsg->rsp_status); - return; - case 0x00: - if (!(skb = dev_alloc_skb(rcvmsg->msg_data.response.msg_len))) { - printk(KERN_WARNING "%s: rcvpkt out of memory, dropping packet\n", - sc_adapter[card]->devicename); - return; - } - skb_put(skb, rcvmsg->msg_data.response.msg_len); - pr_debug("%s: getting data from offset: 0x%lx\n", - sc_adapter[card]->devicename, - rcvmsg->msg_data.response.buff_offset); - memcpy_fromshmem(card, - skb_put(skb, rcvmsg->msg_data.response.msg_len), - (char *)rcvmsg->msg_data.response.buff_offset, - rcvmsg->msg_data.response.msg_len); - sc_adapter[card]->card->rcvcallb_skb(sc_adapter[card]->driverId, - rcvmsg->phy_link_no - 1, skb); - - case 0x03: - /* - * Recycle the buffer - */ - pr_debug("%s: buffer size : %d\n", - sc_adapter[card]->devicename, BUFFER_SIZE); -/* memset_shmem(card, rcvmsg->msg_data.response.buff_offset, 0, BUFFER_SIZE); */ - newll.buff_offset = rcvmsg->msg_data.response.buff_offset; - newll.msg_len = BUFFER_SIZE; - pr_debug("%s: recycled buffer at offset 0x%lx size %d\n", - sc_adapter[card]->devicename, - newll.buff_offset, newll.msg_len); - sendmessage(card, CEPID, ceReqTypeLnk, ceReqClass1, ceReqLnkRead, - rcvmsg->phy_link_no, sizeof(LLData), (unsigned int *)&newll); - } - -} - -int setup_buffers(int card, int c) -{ - unsigned int nBuffers, i, cBase; - unsigned int buffer_size; - LLData RcvBuffOffset; - - if (!IS_VALID_CARD(card)) { - pr_debug("invalid param: %d is not a valid card id\n", card); - return -ENODEV; - } - - /* - * Calculate the buffer offsets (send/recv/send/recv) - */ - pr_debug("%s: setting up channel buffer space in shared RAM\n", - sc_adapter[card]->devicename); - buffer_size = BUFFER_SIZE; - nBuffers = ((sc_adapter[card]->ramsize - BUFFER_BASE) / buffer_size) / 2; - nBuffers = nBuffers > BUFFERS_MAX ? BUFFERS_MAX : nBuffers; - pr_debug("%s: calculating buffer space: %d buffers, %d big\n", - sc_adapter[card]->devicename, - nBuffers, buffer_size); - if (nBuffers < 2) { - pr_debug("%s: not enough buffer space\n", - sc_adapter[card]->devicename); - return -1; - } - cBase = (nBuffers * buffer_size) * (c - 1); - pr_debug("%s: channel buffer offset from shared RAM: 0x%x\n", - sc_adapter[card]->devicename, cBase); - sc_adapter[card]->channel[c - 1].first_sendbuf = BUFFER_BASE + cBase; - sc_adapter[card]->channel[c - 1].num_sendbufs = nBuffers / 2; - sc_adapter[card]->channel[c - 1].free_sendbufs = nBuffers / 2; - sc_adapter[card]->channel[c - 1].next_sendbuf = 0; - pr_debug("%s: send buffer setup complete: first=0x%lx n=%d f=%d, nxt=%d\n", - sc_adapter[card]->devicename, - sc_adapter[card]->channel[c - 1].first_sendbuf, - sc_adapter[card]->channel[c - 1].num_sendbufs, - sc_adapter[card]->channel[c - 1].free_sendbufs, - sc_adapter[card]->channel[c - 1].next_sendbuf); - - /* - * Prep the receive buffers - */ - pr_debug("%s: adding %d RecvBuffers:\n", - sc_adapter[card]->devicename, nBuffers / 2); - for (i = 0; i < nBuffers / 2; i++) { - RcvBuffOffset.buff_offset = - ((sc_adapter[card]->channel[c - 1].first_sendbuf + - (nBuffers / 2) * buffer_size) + (buffer_size * i)); - RcvBuffOffset.msg_len = buffer_size; - pr_debug("%s: adding RcvBuffer #%d offset=0x%lx sz=%d bufsz:%d\n", - sc_adapter[card]->devicename, - i + 1, RcvBuffOffset.buff_offset, - RcvBuffOffset.msg_len, buffer_size); - sendmessage(card, CEPID, ceReqTypeLnk, ceReqClass1, ceReqLnkRead, - c, sizeof(LLData), (unsigned int *)&RcvBuffOffset); - } - return 0; -} |
