static ssize_t
capi_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
{
struct capidev *cdev = (struct capidev *)file->private_data;
struct sk_buff *skb;
int retval;
__u16 mlen;
if (ppos != &file->f_pos)
return -ESPIPE;
if (!cdev->applid)
return -ENODEV;
skb = alloc_skb(count, GFP_USER);
if (!skb)
return -ENOMEM;
if ((retval = copy_from_user(skb_put(skb, count), buf, count))) {
kfree_skb(skb);
return -EFAULT;
}
mlen = CAPIMSG_LEN(skb->data);
if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_REQ) {
if (mlen + CAPIMSG_DATALEN(skb->data) != count) {
kfree_skb(skb);
return -EINVAL;
}
} else {
if (mlen != count) {
kfree_skb(skb);
return -EINVAL;
}
}
CAPIMSG_SETAPPID(skb->data, cdev->applid);
cdev->errcode = (*capifuncs->capi_put_message) (cdev->applid, skb);
if (cdev->errcode) {
kfree_skb(skb);
return -EIO;
}
if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_REQ) {
cdev->nsentdatapkt++;
} else {
cdev->nsentctlpkt++;
}
return count;
}
void hycapi_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
{
__u16 appl_id;
int _len, _len2;
__u8 msghead[64];
appl_id = CAPIMSG_APPID(skb->data);
switch(_hycapi_appCheck(appl_id, ctrl->cnr))
{
case 0:
/* printk(KERN_INFO "Need to register\n"); */
hycapi_register_internal(ctrl,
appl_id,
&(hycapi_applications[appl_id-1].rp));
break;
case 1:
break;
default:
printk(KERN_ERR "HYCAPI: Controller mixup!\n");
return;
}
switch(CAPIMSG_CMD(skb->data)) {
case CAPI_DISCONNECT_B3_RESP:
ctrl->free_ncci(ctrl, appl_id,
CAPIMSG_NCCI(skb->data));
break;
case CAPI_DATA_B3_REQ:
_len = CAPIMSG_LEN(skb->data);
if (_len > 22) {
_len2 = _len - 22;
memcpy(msghead, skb->data, 22);
memcpy(skb->data + _len2, msghead, 22);
skb_pull(skb, _len2);
CAPIMSG_SETLEN(skb->data, 22);
}
break;
case CAPI_LISTEN_REQ:
if(hycapi_applications[appl_id-1].listen_req[ctrl->cnr-1])
{
kfree_skb(hycapi_applications[appl_id-1].listen_req[ctrl->cnr-1]);
hycapi_applications[appl_id-1].listen_req[ctrl->cnr-1] = NULL;
}
if (!(hycapi_applications[appl_id-1].listen_req[ctrl->cnr-1] = skb_copy(skb, GFP_ATOMIC)))
{
printk(KERN_ERR "HYSDN: memory squeeze in private_listen\n");
}
break;
default:
break;
}
hycapi_sendmsg_internal(ctrl, skb);
}
static ssize_t
capi_read(struct file *file, char *buf, size_t count, loff_t *ppos)
{
struct capidev *cdev = (struct capidev *)file->private_data;
struct sk_buff *skb;
int retval;
size_t copied;
if (ppos != &file->f_pos)
return -ESPIPE;
if (!cdev->applid)
return -ENODEV;
if ((skb = skb_dequeue(&cdev->recvqueue)) == 0) {
if (file->f_flags & O_NONBLOCK)
return -EAGAIN;
for (;;) {
interruptible_sleep_on(&cdev->recvwait);
if ((skb = skb_dequeue(&cdev->recvqueue)) != 0)
break;
if (signal_pending(current))
break;
}
if (skb == 0)
return -ERESTARTNOHAND;
}
if (skb->len > count) {
skb_queue_head(&cdev->recvqueue, skb);
return -EMSGSIZE;
}
retval = copy_to_user(buf, skb->data, skb->len);
if (retval) {
skb_queue_head(&cdev->recvqueue, skb);
return retval;
}
copied = skb->len;
if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_IND) {
cdev->nrecvdatapkt++;
} else {
cdev->nrecvctlpkt++;
}
kfree_skb(skb);
return copied;
}
u16 b1dma_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;
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)
b1dma_queue_tx(card, skb);
return retval;
}
static void recv_handler(struct work_struct *work)
{
struct sk_buff *skb;
struct capi20_appl *ap =
container_of(work, struct capi20_appl, recv_work);
if ((!ap) || (ap->release_in_progress))
return;
mutex_lock(&ap->recv_mtx);
while ((skb = skb_dequeue(&ap->recv_queue))) {
if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_IND)
ap->nrecvdatapkt++;
else
ap->nrecvctlpkt++;
ap->recv_message(ap, skb);
}
mutex_unlock(&ap->recv_mtx);
}
u16 b1dma_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;
if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_REQ) {
unsigned long flags;
spin_lock_irqsave(&card->lock, flags);
retval = capilib_data_b3_req(&cinfo->ncci_head,
CAPIMSG_APPID(skb->data),
CAPIMSG_NCCI(skb->data),
CAPIMSG_MSGID(skb->data));
spin_unlock_irqrestore(&card->lock, flags);
}
if (retval == CAPI_NOERROR)
b1dma_queue_tx(card, skb);
return retval;
}
void
hycapi_rx_capipkt(hysdn_card *card, unsigned char *buf, unsigned short len)
{
struct sk_buff *skb;
hycapictrl_info *cinfo = card->hyctrlinfo;
struct capi_ctr *ctrl;
__u16 ApplId;
__u16 MsgLen, info;
__u16 len2, CapiCmd;
__u32 CP64[2] = {0, 0};
#ifdef HYCAPI_PRINTFNAMES
printk(KERN_NOTICE "hycapi_rx_capipkt\n");
#endif
if (!cinfo) {
return;
}
ctrl = &cinfo->capi_ctrl;
if (len < CAPI_MSG_BASELEN) {
printk(KERN_ERR "HYSDN Card%d: invalid CAPI-message, length %d!\n",
card->myid, len);
return;
}
MsgLen = CAPIMSG_LEN(buf);
ApplId = CAPIMSG_APPID(buf);
CapiCmd = CAPIMSG_CMD(buf);
if ((CapiCmd == CAPI_DATA_B3_IND) && (MsgLen < 30)) {
len2 = len + (30 - MsgLen);
if (!(skb = alloc_skb(len2, GFP_ATOMIC))) {
printk(KERN_ERR "HYSDN Card%d: incoming packet dropped\n",
card->myid);
return;
}
memcpy(skb_put(skb, MsgLen), buf, MsgLen);
memcpy(skb_put(skb, 2 * sizeof(__u32)), CP64, 2 * sizeof(__u32));
memcpy(skb_put(skb, len - MsgLen), buf + MsgLen,
len - MsgLen);
CAPIMSG_SETLEN(skb->data, 30);
} else {
if (!(skb = alloc_skb(len, GFP_ATOMIC))) {
printk(KERN_ERR "HYSDN Card%d: incoming packet dropped\n",
card->myid);
return;
}
memcpy(skb_put(skb, len), buf, len);
}
switch (CAPIMSG_CMD(skb->data))
{
case CAPI_CONNECT_B3_CONF:
/* Check info-field for error-indication: */
info = CAPIMSG_U16(skb->data, 12);
switch (info)
{
case 0:
capilib_new_ncci(&cinfo->ncci_head, ApplId, CAPIMSG_NCCI(skb->data),
hycapi_applications[ApplId - 1].rp.datablkcnt);
break;
case 0x0001:
printk(KERN_ERR "HYSDN Card%d: NCPI not supported by current "
"protocol. NCPI ignored.\n", card->myid);
break;
case 0x2001:
printk(KERN_ERR "HYSDN Card%d: Message not supported in"
" current state\n", card->myid);
break;
case 0x2002:
printk(KERN_ERR "HYSDN Card%d: invalid PLCI\n", card->myid);
break;
case 0x2004:
printk(KERN_ERR "HYSDN Card%d: out of NCCI\n", card->myid);
break;
case 0x3008:
printk(KERN_ERR "HYSDN Card%d: NCPI not supported\n",
card->myid);
break;
default:
printk(KERN_ERR "HYSDN Card%d: Info in CONNECT_B3_CONF: %d\n",
card->myid, info);
break;
}
break;
case CAPI_CONNECT_B3_IND:
capilib_new_ncci(&cinfo->ncci_head, ApplId,
CAPIMSG_NCCI(skb->data),
hycapi_applications[ApplId - 1].rp.datablkcnt);
break;
case CAPI_DATA_B3_CONF:
capilib_data_b3_conf(&cinfo->ncci_head, ApplId,
CAPIMSG_NCCI(skb->data),
CAPIMSG_MSGID(skb->data));
break;
default:
break;
}
capi_ctr_handle_message(ctrl, ApplId, skb);
}
static u16 hycapi_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
{
__u16 appl_id;
int _len, _len2;
__u8 msghead[64];
hycapictrl_info *cinfo = ctrl->driverdata;
u16 retval = CAPI_NOERROR;
appl_id = CAPIMSG_APPID(skb->data);
switch (_hycapi_appCheck(appl_id, ctrl->cnr))
{
case 0:
/* printk(KERN_INFO "Need to register\n"); */
hycapi_register_internal(ctrl,
appl_id,
&(hycapi_applications[appl_id - 1].rp));
break;
case 1:
break;
default:
printk(KERN_ERR "HYCAPI: Controller mixup!\n");
retval = CAPI_ILLAPPNR;
goto out;
}
switch (CAPIMSG_CMD(skb->data)) {
case CAPI_DISCONNECT_B3_RESP:
capilib_free_ncci(&cinfo->ncci_head, appl_id,
CAPIMSG_NCCI(skb->data));
break;
case CAPI_DATA_B3_REQ:
_len = CAPIMSG_LEN(skb->data);
if (_len > 22) {
_len2 = _len - 22;
skb_copy_from_linear_data(skb, msghead, 22);
skb_copy_to_linear_data_offset(skb, _len2,
msghead, 22);
skb_pull(skb, _len2);
CAPIMSG_SETLEN(skb->data, 22);
retval = capilib_data_b3_req(&cinfo->ncci_head,
CAPIMSG_APPID(skb->data),
CAPIMSG_NCCI(skb->data),
CAPIMSG_MSGID(skb->data));
}
break;
case CAPI_LISTEN_REQ:
if (hycapi_applications[appl_id - 1].listen_req[ctrl->cnr - 1])
{
kfree_skb(hycapi_applications[appl_id - 1].listen_req[ctrl->cnr - 1]);
hycapi_applications[appl_id - 1].listen_req[ctrl->cnr - 1] = NULL;
}
if (!(hycapi_applications[appl_id -1].listen_req[ctrl->cnr - 1] = skb_copy(skb, GFP_ATOMIC)))
{
printk(KERN_ERR "HYSDN: memory squeeze in private_listen\n");
}
break;
default:
break;
}
out:
if (retval == CAPI_NOERROR)
hycapi_sendmsg_internal(ctrl, skb);
else
dev_kfree_skb_any(skb);
return retval;
}
static void c4_handle_rx(avmcard *card)
{
avmcard_dmainfo *dma = card->dma;
struct capi_ctr *ctrl;
avmctrl_info *cinfo;
struct sk_buff *skb;
void *p = dma->recvbuf.dmabuf;
u32 ApplId, MsgLen, DataB3Len, NCCI, WindowSize;
u8 b1cmd = _get_byte(&p);
u32 cidx;
#ifdef AVM_C4_DEBUG
printk(KERN_DEBUG "%s: rx 0x%x len=%lu\n", card->name,
b1cmd, (unsigned long)dma->recvlen);
#endif
switch (b1cmd) {
case RECEIVE_DATA_B3_IND:
ApplId = (unsigned) _get_word(&p);
MsgLen = _get_slice(&p, card->msgbuf);
DataB3Len = _get_slice(&p, card->databuf);
cidx = CAPIMSG_CONTROLLER(card->msgbuf)-card->cardnr;
if (cidx >= card->nlogcontr) cidx = 0;
ctrl = &card->ctrlinfo[cidx].capi_ctrl;
if (MsgLen < 30) { /* not CAPI 64Bit */
memset(card->msgbuf+MsgLen, 0, 30-MsgLen);
MsgLen = 30;
CAPIMSG_SETLEN(card->msgbuf, 30);
}
if (!(skb = alloc_skb(DataB3Len+MsgLen, GFP_ATOMIC))) {
printk(KERN_ERR "%s: incoming packet dropped\n",
card->name);
} else {
memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
memcpy(skb_put(skb, DataB3Len), card->databuf, DataB3Len);
capi_ctr_handle_message(ctrl, ApplId, skb);
}
break;
case RECEIVE_MESSAGE:
ApplId = (unsigned) _get_word(&p);
MsgLen = _get_slice(&p, card->msgbuf);
cidx = CAPIMSG_CONTROLLER(card->msgbuf)-card->cardnr;
if (cidx >= card->nlogcontr) cidx = 0;
cinfo = &card->ctrlinfo[cidx];
ctrl = &card->ctrlinfo[cidx].capi_ctrl;
if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) {
printk(KERN_ERR "%s: incoming packet dropped\n",
card->name);
} else {
memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_CONF)
capilib_data_b3_conf(&cinfo->ncci_head, ApplId,
CAPIMSG_NCCI(skb->data),
CAPIMSG_MSGID(skb->data));
capi_ctr_handle_message(ctrl, ApplId, skb);
}
break;
case RECEIVE_NEW_NCCI:
ApplId = _get_word(&p);
NCCI = _get_word(&p);
WindowSize = _get_word(&p);
cidx = (NCCI&0x7f) - card->cardnr;
if (cidx >= card->nlogcontr) cidx = 0;
capilib_new_ncci(&card->ctrlinfo[cidx].ncci_head, ApplId, NCCI, WindowSize);
break;
case RECEIVE_FREE_NCCI:
ApplId = _get_word(&p);
NCCI = _get_word(&p);
if (NCCI != 0xffffffff) {
cidx = (NCCI&0x7f) - card->cardnr;
if (cidx >= card->nlogcontr) cidx = 0;
capilib_free_ncci(&card->ctrlinfo[cidx].ncci_head, ApplId, NCCI);
}
break;
case RECEIVE_START:
#ifdef AVM_C4_POLLDEBUG
printk(KERN_INFO "%s: poll from c4\n", card->name);
#endif
if (!suppress_pollack)
queue_pollack(card);
for (cidx=0; cidx < card->nr_controllers; cidx++) {
ctrl = &card->ctrlinfo[cidx].capi_ctrl;
capi_ctr_resume_output(ctrl);
}
break;
case RECEIVE_STOP:
for (cidx=0; cidx < card->nr_controllers; cidx++) {
ctrl = &card->ctrlinfo[cidx].capi_ctrl;
capi_ctr_suspend_output(ctrl);
}
break;
case RECEIVE_INIT:
cidx = card->nlogcontr;
if (cidx >= card->nr_controllers) {
printk(KERN_ERR "%s: card with %d controllers ??\n",
card->name, cidx+1);
break;
}
card->nlogcontr++;
cinfo = &card->ctrlinfo[cidx];
ctrl = &cinfo->capi_ctrl;
cinfo->versionlen = _get_slice(&p, cinfo->versionbuf);
b1_parse_version(cinfo);
printk(KERN_INFO "%s: %s-card (%s) now active\n",
card->name,
cinfo->version[VER_CARDTYPE],
cinfo->version[VER_DRIVER]);
capi_ctr_ready(&cinfo->capi_ctrl);
break;
case RECEIVE_TASK_READY:
ApplId = (unsigned) _get_word(&p);
MsgLen = _get_slice(&p, card->msgbuf);
card->msgbuf[MsgLen] = 0;
while ( MsgLen > 0
&& ( card->msgbuf[MsgLen-1] == '\n'
|| card->msgbuf[MsgLen-1] == '\r')) {
card->msgbuf[MsgLen-1] = 0;
MsgLen--;
}
printk(KERN_INFO "%s: task %d \"%s\" ready.\n",
card->name, ApplId, card->msgbuf);
break;
case RECEIVE_DEBUGMSG:
MsgLen = _get_slice(&p, card->msgbuf);
card->msgbuf[MsgLen] = 0;
while ( MsgLen > 0
&& ( card->msgbuf[MsgLen-1] == '\n'
|| card->msgbuf[MsgLen-1] == '\r')) {
card->msgbuf[MsgLen-1] = 0;
MsgLen--;
}
printk(KERN_INFO "%s: DEBUG: %s\n", card->name, card->msgbuf);
break;
default:
printk(KERN_ERR "%s: c4_interrupt: 0x%x ???\n",
card->name, b1cmd);
return;
}
}
static void b1dma_handle_rx(avmcard *card)
{
avmctrl_info *cinfo = &card->ctrlinfo[0];
avmcard_dmainfo *dma = card->dma;
struct capi_ctr *ctrl = &cinfo->capi_ctrl;
struct sk_buff *skb;
void *p = dma->recvbuf.dmabuf+4;
u32 ApplId, MsgLen, DataB3Len, NCCI, WindowSize;
u8 b1cmd = _get_byte(&p);
#ifdef AVM_B1DMA_DEBUG
#ifdef CONFIG_DEBUG_PRINTK
printk(KERN_DEBUG "rx: 0x%x %lu\n", b1cmd, (unsigned long)dma->recvlen);
#else
;
#endif
#endif
switch (b1cmd) {
case RECEIVE_DATA_B3_IND:
ApplId = (unsigned) _get_word(&p);
MsgLen = _get_slice(&p, card->msgbuf);
DataB3Len = _get_slice(&p, card->databuf);
if (MsgLen < 30) { /* not CAPI 64Bit */
memset(card->msgbuf+MsgLen, 0, 30-MsgLen);
MsgLen = 30;
CAPIMSG_SETLEN(card->msgbuf, 30);
}
if (!(skb = alloc_skb(DataB3Len+MsgLen, GFP_ATOMIC))) {
printk(KERN_ERR "%s: incoming packet dropped\n",
card->name);
} else {
memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
memcpy(skb_put(skb, DataB3Len), card->databuf, DataB3Len);
capi_ctr_handle_message(ctrl, ApplId, skb);
}
break;
case RECEIVE_MESSAGE:
ApplId = (unsigned) _get_word(&p);
MsgLen = _get_slice(&p, card->msgbuf);
if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) {
printk(KERN_ERR "%s: incoming packet dropped\n",
card->name);
} else {
memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_CONF) {
spin_lock(&card->lock);
capilib_data_b3_conf(&cinfo->ncci_head, ApplId,
CAPIMSG_NCCI(skb->data),
CAPIMSG_MSGID(skb->data));
spin_unlock(&card->lock);
}
capi_ctr_handle_message(ctrl, ApplId, skb);
}
break;
case RECEIVE_NEW_NCCI:
ApplId = _get_word(&p);
NCCI = _get_word(&p);
WindowSize = _get_word(&p);
spin_lock(&card->lock);
capilib_new_ncci(&cinfo->ncci_head, ApplId, NCCI, WindowSize);
spin_unlock(&card->lock);
break;
case RECEIVE_FREE_NCCI:
ApplId = _get_word(&p);
NCCI = _get_word(&p);
if (NCCI != 0xffffffff) {
spin_lock(&card->lock);
capilib_free_ncci(&cinfo->ncci_head, ApplId, NCCI);
spin_unlock(&card->lock);
}
break;
case RECEIVE_START:
#ifdef AVM_B1DMA_POLLDEBUG
#ifdef CONFIG_DEBUG_PRINTK
printk(KERN_INFO "%s: receive poll\n", card->name);
#else
;
#endif
#endif
if (!suppress_pollack)
queue_pollack(card);
capi_ctr_resume_output(ctrl);
break;
case RECEIVE_STOP:
capi_ctr_suspend_output(ctrl);
break;
case RECEIVE_INIT:
cinfo->versionlen = _get_slice(&p, cinfo->versionbuf);
b1_parse_version(cinfo);
#ifdef CONFIG_DEBUG_PRINTK
printk(KERN_INFO "%s: %s-card (%s) now active\n",
card->name,
cinfo->version[VER_CARDTYPE],
cinfo->version[VER_DRIVER]);
#else
;
#endif
capi_ctr_ready(ctrl);
break;
case RECEIVE_TASK_READY:
ApplId = (unsigned) _get_word(&p);
MsgLen = _get_slice(&p, card->msgbuf);
card->msgbuf[MsgLen] = 0;
while ( MsgLen > 0
&& ( card->msgbuf[MsgLen-1] == '\n'
|| card->msgbuf[MsgLen-1] == '\r')) {
card->msgbuf[MsgLen-1] = 0;
MsgLen--;
}
#ifdef CONFIG_DEBUG_PRINTK
printk(KERN_INFO "%s: task %d \"%s\" ready.\n",
card->name, ApplId, card->msgbuf);
#else
;
#endif
break;
case RECEIVE_DEBUGMSG:
MsgLen = _get_slice(&p, card->msgbuf);
card->msgbuf[MsgLen] = 0;
while ( MsgLen > 0
&& ( card->msgbuf[MsgLen-1] == '\n'
|| card->msgbuf[MsgLen-1] == '\r')) {
card->msgbuf[MsgLen-1] = 0;
MsgLen--;
}
#ifdef CONFIG_DEBUG_PRINTK
printk(KERN_INFO "%s: DEBUG: %s\n", card->name, card->msgbuf);
#else
;
#endif
break;
default:
printk(KERN_ERR "%s: b1dma_interrupt: 0x%x ???\n",
card->name, b1cmd);
return;
}
}