speedtch.c | 110 ++++++++++++++++++++++++++++---------------------------------
1 files changed, 51 insertions(+), 59 deletions(-)
diff -Nru a/drivers/usb/misc/speedtch.c b/drivers/usb/misc/speedtch.c
--- a/drivers/usb/misc/speedtch.c Mon Mar 24 18:00:56 2003
+++ b/drivers/usb/misc/speedtch.c Mon Mar 24 18:00:56 2003
@@ -148,19 +148,16 @@
#define UDSL_SKB(x) ((struct udsl_control *)(x)->cb)
-struct atmsar_vcc_data {
- struct atmsar_vcc_data *next;
-
- /* connection specific non-atmsar data */
- struct atm_vcc *vcc;
- unsigned short mtu; /* max is actually 65k for AAL5... */
-
- /* cell data */
- unsigned int vp;
- unsigned int vc;
+struct udsl_vcc_data {
+ /* vpi/vci lookup */
+ struct udsl_vcc_data *next;
+ unsigned int vpi;
+ unsigned int vci;
unsigned long atmHeader;
+ struct atm_vcc *vcc;
/* raw cell reassembly */
+ unsigned short mtu;
struct sk_buff *reasBuffer;
};
@@ -178,7 +175,7 @@
/* atm device part */
struct atm_dev *atm_dev;
- struct atmsar_vcc_data *atmsar_vcc_list;
+ struct udsl_vcc_data *vcc_list;
/* receiving */
struct udsl_receiver all_receivers [UDSL_NUMBER_RCV_URBS];
@@ -252,24 +249,23 @@
#define ATM_HDR_VPVC_MASK (ATM_HDR_VPI_MASK | ATM_HDR_VCI_MASK)
-struct sk_buff *atmsar_decode_rawcell (struct atmsar_vcc_data *list, struct sk_buff
*skb,
- struct atmsar_vcc_data **ctx)
+static struct sk_buff *udsl_decode_rawcell (struct udsl_vcc_data *list, struct
sk_buff *skb, struct udsl_vcc_data **ctx)
{
+ if (!list || !skb || !ctx)
+ return NULL;
+ if (!skb->data || !skb->tail)
+ return NULL;
+
while (skb->len) {
unsigned char *cell = skb->data;
unsigned char *cell_payload;
- struct atmsar_vcc_data *vcc = list;
+ struct udsl_vcc_data *vcc = list;
unsigned long atmHeader =
((unsigned long) (cell[0]) << 24) | ((unsigned long) (cell[1]) <<
16) |
((unsigned long) (cell[2]) << 8) | (cell[3] & 0xff);
- dbg ("atmsar_decode_rawcell (0x%p, 0x%p, 0x%p) called", list, skb,
ctx);
- dbg ("atmsar_decode_rawcell skb->data %p, skb->tail %p", skb->data,
skb->tail);
-
- if (!list || !skb || !ctx)
- return NULL;
- if (!skb->data || !skb->tail)
- return NULL;
+ dbg ("udsl_decode_rawcell (0x%p, 0x%p, 0x%p) called", list, skb, ctx);
+ dbg ("udsl_decode_rawcell skb->data %p, skb->tail %p", skb->data,
skb->tail);
/* here should the header CRC check be... */
@@ -279,7 +275,7 @@
&& ((vcc->atmHeader & ATM_HDR_VPVC_MASK) != (atmHeader &
ATM_HDR_VPVC_MASK));
vcc = vcc->next);
- dbg ("atmsar_decode_rawcell found vcc %p for packet on vp %d, vc %d",
vcc,
+ dbg ("udsl_decode_rawcell found vcc %p for packet on vpi %d, vci %d",
vcc,
(int) ((atmHeader & ATM_HDR_VPI_MASK) >> ATM_HDR_VPI_SHIFT),
(int) ((atmHeader & ATM_HDR_VCI_MASK) >> ATM_HDR_VCI_SHIFT));
@@ -313,9 +309,7 @@
tmp = vcc->reasBuffer;
vcc->reasBuffer = NULL;
- dbg
- ("atmsar_decode_rawcell returns ATM_AAL5
pdu 0x%p with length %d",
- tmp, tmp->len);
+ dbg ("udsl_decode_rawcell returns ATM_AAL5 pdu
0x%p with length %d", tmp, tmp->len);
return tmp;
}
}
@@ -331,14 +325,14 @@
}
return NULL;
-};
+}
-struct sk_buff *atmsar_decode_aal5 (struct atmsar_vcc_data *ctx, struct sk_buff *skb)
+static struct sk_buff *udsl_decode_aal5 (struct udsl_vcc_data *ctx, struct sk_buff
*skb)
{
uint crc = 0xffffffff;
uint length, pdu_crc, pdu_length;
- dbg ("atmsar_decode_aal5 (0x%p, 0x%p) called", ctx, skb);
+ dbg ("udsl_decode_aal5 (0x%p, 0x%p) called", ctx, skb);
if (skb->len && (skb->len % 48))
return NULL;
@@ -348,7 +342,7 @@
(skb->tail[-4] << 24) + (skb->tail[-3] << 16) + (skb->tail[-2] << 8) +
skb->tail[-1];
pdu_length = ((length + 47 + 8) / 48) * 48;
- dbg ("atmsar_decode_aal5: skb->len = %d, length = %d, pdu_crc = 0x%x,
pdu_length = %d",
+ dbg ("udsl_decode_aal5: skb->len = %d, length = %d, pdu_crc = 0x%x, pdu_length
= %d",
skb->len, length, pdu_crc, pdu_length);
/* is skb long enough ? */
@@ -360,7 +354,7 @@
/* is skb too long ? */
if (skb->len > pdu_length) {
- dbg ("atmsar_decode_aal5: Warning: readjusting illeagl size %d -> %d",
+ dbg ("udsl_decode_aal5: Warning: readjusting illegal size %d -> %d",
skb->len, pdu_length);
/* buffer is too long. we can try to recover
* if we discard the first part of the skb.
@@ -373,7 +367,7 @@
/* check crc */
if (pdu_crc != crc) {
- dbg ("atmsar_decode_aal5: crc check failed!");
+ dbg ("udsl_decode_aal5: crc check failed!");
if (ctx->vcc->stats)
atomic_inc (&ctx->vcc->stats->rx_err);
return NULL;
@@ -386,16 +380,17 @@
if (ctx->vcc->stats)
atomic_inc (&ctx->vcc->stats->rx);
- dbg ("atmsar_decode_aal5 returns pdu 0x%p with length %d", skb, skb->len);
+ dbg ("udsl_decode_aal5 returns pdu 0x%p with length %d", skb, skb->len);
return skb;
-};
+}
/*************
** encode **
*************/
-static void udsl_groom_skb (struct atm_vcc *vcc, struct sk_buff *skb) {
+static void udsl_groom_skb (struct atm_vcc *vcc, struct sk_buff *skb)
+{
struct udsl_control *ctrl = UDSL_SKB (skb);
unsigned int i, zero_padding;
unsigned char zero = 0;
@@ -435,7 +430,8 @@
ctrl->aal5_trailer [7] = crc;
}
-unsigned int udsl_write_cells (unsigned int howmany, struct sk_buff *skb, unsigned
char **target_p) {
+static unsigned int udsl_write_cells (unsigned int howmany, struct sk_buff *skb,
unsigned char **target_p)
+{
struct udsl_control *ctrl = UDSL_SKB (skb);
unsigned char *target = *target_p;
unsigned int nc, ne, i;
@@ -524,7 +520,7 @@
unsigned char *data_start;
struct sk_buff *skb;
struct urb *urb;
- struct atmsar_vcc_data *atmsar_vcc = NULL;
+ struct udsl_vcc_data *atmsar_vcc = NULL;
struct sk_buff *new = NULL, *tmp = NULL;
int err;
@@ -552,13 +548,11 @@
dbg ("skb->len = %d", skb->len);
PACKETDEBUG (skb->data, skb->len);
- while ((new =
- atmsar_decode_rawcell (instance->atmsar_vcc_list, skb,
- &atmsar_vcc)) != NULL) {
+ while ((new = udsl_decode_rawcell (instance->vcc_list, skb,
&atmsar_vcc))) {
dbg ("(after cell processing)skb->len = %d", new->len);
tmp = new;
- new = atmsar_decode_aal5 (atmsar_vcc, new);
+ new = udsl_decode_aal5 (atmsar_vcc, new);
/* we can't send NULL skbs upstream, the ATM layer
would try to close the vcc... */
if (new) {
@@ -574,7 +568,7 @@
dev_kfree_skb (new);
}
} else {
- dbg ("atmsar_decode_aal5 returned NULL!");
+ dbg ("udsl_decode_aal5 returned NULL!");
dev_kfree_skb (tmp);
}
}
@@ -917,12 +911,10 @@
return 0;
}
-#define ATMSAR_SET_PTI 0x2L
-
static int udsl_atm_open (struct atm_vcc *vcc, short vpi, int vci)
{
struct udsl_instance_data *instance = vcc->dev->dev_data;
- struct atmsar_vcc_data *new;
+ struct udsl_vcc_data *new;
dbg ("udsl_atm_open called");
@@ -931,19 +923,19 @@
return -ENODEV;
}
- /* at the moment only AAL5 support */
+ /* only support AAL5 */
if (vcc->qos.aal != ATM_AAL5)
return -EINVAL;
- if (!(new = kmalloc (sizeof (struct atmsar_vcc_data), GFP_KERNEL)))
+ if (!(new = kmalloc (sizeof (struct udsl_vcc_data), GFP_KERNEL)))
return -ENOMEM;
MOD_INC_USE_COUNT;
- memset (new, 0, sizeof (struct atmsar_vcc_data));
+ memset (new, 0, sizeof (struct udsl_vcc_data));
new->vcc = vcc;
- new->vp = vpi;
- new->vc = vci;
+ new->vpi = vpi;
+ new->vci = vci;
new->mtu = UDSL_MAX_AAL5_MRU;
@@ -951,10 +943,10 @@
((unsigned long) vci << ATM_HDR_VCI_SHIFT);
new->reasBuffer = NULL;
- new->next = instance->atmsar_vcc_list;
- instance->atmsar_vcc_list = new;
+ new->next = instance->vcc_list;
+ instance->vcc_list = new;
- dbg ("Allocated new SARLib vcc 0x%p with vp %d vc %d", new, vpi, vci);
+ dbg ("Allocated new SARLib vcc 0x%p with vpi %d vci %d", new, vpi, vci);
vcc->dev_data = new;
@@ -974,7 +966,7 @@
static void udsl_atm_close (struct atm_vcc *vcc)
{
struct udsl_instance_data *instance = vcc->dev->dev_data;
- struct atmsar_vcc_data *work;
+ struct udsl_vcc_data *work;
dbg ("udsl_atm_close called");
@@ -987,10 +979,10 @@
/* cancel all sends on this vcc */
udsl_cancel_send (instance, vcc);
- if (instance->atmsar_vcc_list == vcc->dev_data) {
- instance->atmsar_vcc_list = instance->atmsar_vcc_list->next;
+ if (instance->vcc_list == vcc->dev_data) {
+ instance->vcc_list = instance->vcc_list->next;
} else {
- for (work = instance->atmsar_vcc_list; work && work->next &&
(work->next != vcc->dev_data); work = work->next);
+ for (work = instance->vcc_list; work && work->next && (work->next !=
vcc->dev_data); work = work->next);
/* return if not found */
if (work->next != vcc->dev_data)
@@ -999,11 +991,11 @@
work->next = work->next->next;
}
- if (((struct atmsar_vcc_data *)vcc->dev_data)->reasBuffer) {
- dev_kfree_skb (((struct atmsar_vcc_data *)vcc->dev_data)->reasBuffer);
+ if (((struct udsl_vcc_data *)vcc->dev_data)->reasBuffer) {
+ dev_kfree_skb (((struct udsl_vcc_data *)vcc->dev_data)->reasBuffer);
}
- dbg ("Deallocated SARLib vcc 0x%p with vp %d vc %d", vcc->dev_data,
vcc->dev_data->vp, vcc->dev_data->vc);
+ dbg ("Deallocated SARLib vcc 0x%p with vpi %d vci %d", vcc->dev_data,
vcc->dev_data->vpi, vcc->dev_data->vci);
kfree (vcc->dev_data);
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