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Commit 2032e2c2 authored by Tilman Schmidt's avatar Tilman Schmidt Committed by David S. Miller
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usb_gigaset: code cleanup 

Reorganize the code of the Gigaset M10x driver to make it more
readable, less redundant, better aligned to the style of other
parts of the driver, and cause fewer checkpatch.pl complaints.

Impact: code reorganization, no functional change
Signed-off-by: default avatarTilman Schmidt <tilman@imap.cc>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4dd8230a
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Showing with 358 additions and 331 deletions
drivers/isdn/gigaset/asyncdata.c
View file @ 2032e2c2
...@@ -19,7 +19,7 @@ ...@@ -19,7 +19,7 @@
/* check if byte must be stuffed/escaped /* check if byte must be stuffed/escaped
* I'm not sure which data should be encoded. * I'm not sure which data should be encoded.
* Therefore I will go the hard way and decode every value * Therefore I will go the hard way and encode every value
* less than 0x20, the flag sequence and the control escape char. * less than 0x20, the flag sequence and the control escape char.
*/ */
static inline int muststuff(unsigned char c) static inline int muststuff(unsigned char c)
...@@ -35,288 +35,383 @@ static inline int muststuff(unsigned char c) ...@@ -35,288 +35,383 @@ static inline int muststuff(unsigned char c)
/* == data input =========================================================== */ /* == data input =========================================================== */
/* process a block of received bytes in command mode (modem response) /* process a block of received bytes in command mode
* (mstate != MS_LOCKED && (inputstate & INS_command))
* Append received bytes to the command response buffer and forward them
* line by line to the response handler. Exit whenever a mode/state change
* might have occurred.
* Return value: * Return value:
* number of processed bytes * number of processed bytes
*/ */
static inline int cmd_loop(unsigned char c, unsigned char *src, int numbytes, static unsigned cmd_loop(unsigned numbytes, struct inbuf_t *inbuf)
struct inbuf_t *inbuf)
{ {
unsigned char *src = inbuf->data + inbuf->head;
struct cardstate *cs = inbuf->cs; struct cardstate *cs = inbuf->cs;
unsigned cbytes = cs->cbytes; unsigned cbytes = cs->cbytes;
int inputstate = inbuf->inputstate; unsigned procbytes = 0;
int startbytes = numbytes; unsigned char c;
for (;;) { while (procbytes < numbytes) {
cs->respdata[cbytes] = c; c = *src++;
if (c == 10 || c == 13) { procbytes++;
gig_dbg(DEBUG_TRANSCMD, "%s: End of Command (%d Bytes)",
switch (c) {
case '\n':
if (cbytes == 0 && cs->respdata[0] == '\r') {
/* collapse LF with preceding CR */
cs->respdata[0] = 0;
break;
}
/* --v-- fall through --v-- */
case '\r':
/* end of message line, pass to response handler */
gig_dbg(DEBUG_TRANSCMD, "%s: End of Message (%d Bytes)",
__func__, cbytes); __func__, cbytes);
if (cbytes >= MAX_RESP_SIZE) {
dev_warn(cs->dev, "response too large (%d)\n",
cbytes);
cbytes = MAX_RESP_SIZE;
}
cs->cbytes = cbytes; cs->cbytes = cbytes;
gigaset_handle_modem_response(cs); /* can change gigaset_handle_modem_response(cs);
cs->dle */
cbytes = 0; cbytes = 0;
if (cs->dle && /* store EOL byte for CRLF collapsing */
!(inputstate & INS_DLE_command)) { cs->respdata[0] = c;
inputstate &= ~INS_command;
break; /* cs->dle may have changed */
if (cs->dle && !(inbuf->inputstate & INS_DLE_command))
inbuf->inputstate &= ~INS_command;
/* return for reevaluating state */
goto exit;
case DLE_FLAG:
if (inbuf->inputstate & INS_DLE_char) {
/* quoted DLE: clear quote flag */
inbuf->inputstate &= ~INS_DLE_char;
} else if (cs->dle ||
(inbuf->inputstate & INS_DLE_command)) {
/* DLE escape, pass up for handling */
inbuf->inputstate |= INS_DLE_char;
goto exit;
} }
} else { /* quoted or not in DLE mode: treat as regular data */
/* advance in line buffer, checking for overflow */ /* --v-- fall through --v-- */
if (cbytes < MAX_RESP_SIZE - 1) default:
/* append to line buffer if possible */
if (cbytes < MAX_RESP_SIZE)
cs->respdata[cbytes] = c;
cbytes++; cbytes++;
else
dev_warn(cs->dev, "response too large\n");
}
if (!numbytes)
break;
c = *src++;
--numbytes;
if (c == DLE_FLAG &&
(cs->dle || inputstate & INS_DLE_command)) {
inputstate |= INS_DLE_char;
break;
} }
} }
exit:
cs->cbytes = cbytes; cs->cbytes = cbytes;
inbuf->inputstate = inputstate; return procbytes;
return startbytes - numbytes;
} }
/* process a block of received bytes in lock mode (tty i/f) /* process a block of received bytes in lock mode
* All received bytes are passed unmodified to the tty i/f.
* Return value: * Return value:
* number of processed bytes * number of processed bytes
*/ */
static inline int lock_loop(unsigned char *src, int numbytes, static unsigned lock_loop(unsigned numbytes, struct inbuf_t *inbuf)
struct inbuf_t *inbuf)
{ {
struct cardstate *cs = inbuf->cs; unsigned char *src = inbuf->data + inbuf->head;
gigaset_dbg_buffer(DEBUG_LOCKCMD, "received response",
numbytes, src);
gigaset_if_receive(cs, src, numbytes);
gigaset_dbg_buffer(DEBUG_LOCKCMD, "received response", numbytes, src);
gigaset_if_receive(inbuf->cs, src, numbytes);
return numbytes; return numbytes;
} }
/* set up next receive skb for data mode
*/
static void new_rcv_skb(struct bc_state *bcs)
{
struct cardstate *cs = bcs->cs;
unsigned short hw_hdr_len = cs->hw_hdr_len;
if (bcs->ignore) {
bcs->skb = NULL;
return;
}
bcs->skb = dev_alloc_skb(SBUFSIZE + hw_hdr_len);
if (bcs->skb == NULL) {
dev_warn(cs->dev, "could not allocate new skb\n");
return;
}
skb_reserve(bcs->skb, hw_hdr_len);
}
/* process a block of received bytes in HDLC data mode /* process a block of received bytes in HDLC data mode
* (mstate != MS_LOCKED && !(inputstate & INS_command) && proto2 == L2_HDLC)
* Collect HDLC frames, undoing byte stuffing and watching for DLE escapes. * Collect HDLC frames, undoing byte stuffing and watching for DLE escapes.
* When a frame is complete, check the FCS and pass valid frames to the LL. * When a frame is complete, check the FCS and pass valid frames to the LL.
* If DLE is encountered, return immediately to let the caller handle it. * If DLE is encountered, return immediately to let the caller handle it.
* Return value: * Return value:
* number of processed bytes * number of processed bytes
* numbytes (all bytes processed) on error --FIXME
*/ */
static inline int hdlc_loop(unsigned char c, unsigned char *src, int numbytes, static unsigned hdlc_loop(unsigned numbytes, struct inbuf_t *inbuf)
struct inbuf_t *inbuf)
{ {
struct cardstate *cs = inbuf->cs; struct cardstate *cs = inbuf->cs;
struct bc_state *bcs = inbuf->bcs; struct bc_state *bcs = cs->bcs;
int inputstate = bcs->inputstate; int inputstate = bcs->inputstate;
__u16 fcs = bcs->fcs; __u16 fcs = bcs->fcs;
struct sk_buff *skb = bcs->skb; struct sk_buff *skb = bcs->skb;
int startbytes = numbytes; unsigned char *src = inbuf->data + inbuf->head;
unsigned procbytes = 0;
unsigned char c;
if (unlikely(inputstate & INS_byte_stuff)) { if (inputstate & INS_byte_stuff) {
if (!numbytes)
return 0;
inputstate &= ~INS_byte_stuff; inputstate &= ~INS_byte_stuff;
goto byte_stuff; goto byte_stuff;
} }
for (;;) {
if (unlikely(c == PPP_ESCAPE)) { while (procbytes < numbytes) {
if (unlikely(!numbytes)) { c = *src++;
inputstate |= INS_byte_stuff; procbytes++;
if (c == DLE_FLAG) {
if (inputstate & INS_DLE_char) {
/* quoted DLE: clear quote flag */
inputstate &= ~INS_DLE_char;
} else if (cs->dle || (inputstate & INS_DLE_command)) {
/* DLE escape, pass up for handling */
inputstate |= INS_DLE_char;
break; break;
} }
c = *src++; }
--numbytes;
if (unlikely(c == DLE_FLAG && if (c == PPP_ESCAPE) {
(cs->dle || /* byte stuffing indicator: pull in next byte */
inbuf->inputstate & INS_DLE_command))) { if (procbytes >= numbytes) {
inbuf->inputstate |= INS_DLE_char; /* end of buffer, save for later processing */
inputstate |= INS_byte_stuff; inputstate |= INS_byte_stuff;
break; break;
} }
byte_stuff: byte_stuff:
c = *src++;
procbytes++;
if (c == DLE_FLAG) {
if (inputstate & INS_DLE_char) {
/* quoted DLE: clear quote flag */
inputstate &= ~INS_DLE_char;
} else if (cs->dle ||
(inputstate & INS_DLE_command)) {
/* DLE escape, pass up for handling */
inputstate |=
INS_DLE_char | INS_byte_stuff;
break;
}
}
c ^= PPP_TRANS; c ^= PPP_TRANS;
if (unlikely(!muststuff(c)))
gig_dbg(DEBUG_HDLC, "byte stuffed: 0x%02x", c);
} else if (unlikely(c == PPP_FLAG)) {
if (unlikely(inputstate & INS_skip_frame)) {
#ifdef CONFIG_GIGASET_DEBUG #ifdef CONFIG_GIGASET_DEBUG
if (!(inputstate & INS_have_data)) { /* 7E 7E */ if (!muststuff(c))
++bcs->emptycount; gig_dbg(DEBUG_HDLC, "byte stuffed: 0x%02x", c);
} else #endif
} else if (c == PPP_FLAG) {
/* end of frame: process content if any */
if (inputstate & INS_have_data) {
gig_dbg(DEBUG_HDLC, gig_dbg(DEBUG_HDLC,
"7e----------------------------"); "7e----------------------------");
#endif
/* end of frame */ /* check and pass received frame */
if (!skb) {
/* skipped frame */
gigaset_isdn_rcv_err(bcs);
} else if (skb->len < 2) {
/* frame too short for FCS */
dev_warn(cs->dev,
"short frame (%d)\n",
skb->len);
gigaset_isdn_rcv_err(bcs); gigaset_isdn_rcv_err(bcs);
dev_kfree_skb_any(skb); dev_kfree_skb_any(skb);
} else if (!(inputstate & INS_have_data)) { /* 7E 7E */ } else if (fcs != PPP_GOODFCS) {
#ifdef CONFIG_GIGASET_DEBUG /* frame check error */
++bcs->emptycount;
#endif
break;
} else {
gig_dbg(DEBUG_HDLC,
"7e----------------------------");
/* end of frame */
if (unlikely(fcs != PPP_GOODFCS)) {
dev_err(cs->dev, dev_err(cs->dev,
"Checksum failed, %u bytes corrupted!\n", "Checksum failed, %u bytes corrupted!\n",
skb->len); skb->len);
gigaset_isdn_rcv_err(bcs); gigaset_isdn_rcv_err(bcs);
dev_kfree_skb_any(skb); dev_kfree_skb_any(skb);
} else if (likely(skb->len > 2)) { } else {
/* good frame */
__skb_trim(skb, skb->len - 2); __skb_trim(skb, skb->len - 2);
gigaset_skb_rcvd(bcs, skb); gigaset_skb_rcvd(bcs, skb);
} else {
if (skb->len) {
dev_err(cs->dev,
"invalid packet size (%d)\n", skb->len);
gigaset_isdn_rcv_err(bcs);
}
dev_kfree_skb_any(skb);
}
} }
fcs = PPP_INITFCS; /* prepare reception of next frame */
inputstate &= ~(INS_have_data | INS_skip_frame); inputstate &= ~INS_have_data;
if (unlikely(bcs->ignore)) { new_rcv_skb(bcs);
inputstate |= INS_skip_frame; skb = bcs->skb;
skb = NULL;
} else {
skb = dev_alloc_skb(SBUFSIZE + cs->hw_hdr_len);
if (skb != NULL) {
skb_reserve(skb, cs->hw_hdr_len);
} else { } else {
dev_warn(cs->dev, /* empty frame (7E 7E) */
"could not allocate new skb\n"); #ifdef CONFIG_GIGASET_DEBUG
inputstate |= INS_skip_frame; ++bcs->emptycount;
#endif
if (!skb) {
/* skipped (?) */
gigaset_isdn_rcv_err(bcs);
new_rcv_skb(bcs);
skb = bcs->skb;
} }
} }
break; fcs = PPP_INITFCS;
} else if (unlikely(muststuff(c))) { continue;
#ifdef CONFIG_GIGASET_DEBUG
} else if (muststuff(c)) {
/* Should not happen. Possible after ZDLE=1<CR><LF>. */ /* Should not happen. Possible after ZDLE=1<CR><LF>. */
gig_dbg(DEBUG_HDLC, "not byte stuffed: 0x%02x", c); gig_dbg(DEBUG_HDLC, "not byte stuffed: 0x%02x", c);
#endif
} }
/* add character */ /* regular data byte, append to skb */
#ifdef CONFIG_GIGASET_DEBUG #ifdef CONFIG_GIGASET_DEBUG
if (unlikely(!(inputstate & INS_have_data))) { if (!(inputstate & INS_have_data)) {
gig_dbg(DEBUG_HDLC, "7e (%d x) ================", gig_dbg(DEBUG_HDLC, "7e (%d x) ================",
bcs->emptycount); bcs->emptycount);
bcs->emptycount = 0; bcs->emptycount = 0;
} }
#endif #endif
inputstate |= INS_have_data; inputstate |= INS_have_data;
if (skb) {
if (likely(!(inputstate & INS_skip_frame))) { if (skb->len == SBUFSIZE) {
if (unlikely(skb->len == SBUFSIZE)) {
dev_warn(cs->dev, "received packet too long\n"); dev_warn(cs->dev, "received packet too long\n");
dev_kfree_skb_any(skb); dev_kfree_skb_any(skb);
skb = NULL; /* skip remainder of packet */
inputstate |= INS_skip_frame; bcs->skb = skb = NULL;
break; } else {
}
*__skb_put(skb, 1) = c; *__skb_put(skb, 1) = c;
fcs = crc_ccitt_byte(fcs, c); fcs = crc_ccitt_byte(fcs, c);
} }
if (unlikely(!numbytes))
break;
c = *src++;
--numbytes;
if (unlikely(c == DLE_FLAG &&
(cs->dle ||
inbuf->inputstate & INS_DLE_command))) {
inbuf->inputstate |= INS_DLE_char;
break;
} }
} }
bcs->inputstate = inputstate; bcs->inputstate = inputstate;
bcs->fcs = fcs; bcs->fcs = fcs;
bcs->skb = skb; return procbytes;
return startbytes - numbytes;
} }
/* process a block of received bytes in transparent data mode /* process a block of received bytes in transparent data mode
* (mstate != MS_LOCKED && !(inputstate & INS_command) && proto2 != L2_HDLC)
* Invert bytes, undoing byte stuffing and watching for DLE escapes. * Invert bytes, undoing byte stuffing and watching for DLE escapes.
* If DLE is encountered, return immediately to let the caller handle it. * If DLE is encountered, return immediately to let the caller handle it.
* Return value: * Return value:
* number of processed bytes * number of processed bytes
* numbytes (all bytes processed) on error --FIXME
*/ */
static inline int iraw_loop(unsigned char c, unsigned char *src, int numbytes, static unsigned iraw_loop(unsigned numbytes, struct inbuf_t *inbuf)
struct inbuf_t *inbuf)
{ {
struct cardstate *cs = inbuf->cs; struct cardstate *cs = inbuf->cs;
struct bc_state *bcs = inbuf->bcs; struct bc_state *bcs = cs->bcs;
int inputstate = bcs->inputstate; int inputstate = bcs->inputstate;
struct sk_buff *skb = bcs->skb; struct sk_buff *skb = bcs->skb;
int startbytes = numbytes; unsigned char *src = inbuf->data + inbuf->head;
unsigned procbytes = 0;
for (;;) { unsigned char c;
/* add character */
inputstate |= INS_have_data;
if (likely(!(inputstate & INS_skip_frame))) { if (!skb) {
if (unlikely(skb->len == SBUFSIZE)) { /* skip this block */
//FIXME just pass skb up and allocate a new one new_rcv_skb(bcs);
dev_warn(cs->dev, "received packet too long\n"); return numbytes;
dev_kfree_skb_any(skb);
skb = NULL;
inputstate |= INS_skip_frame;
break;
}
*__skb_put(skb, 1) = bitrev8(c);
} }
if (unlikely(!numbytes)) while (procbytes < numbytes && skb->len < SBUFSIZE) {
break;
c = *src++; c = *src++;
--numbytes; procbytes++;
if (unlikely(c == DLE_FLAG &&
(cs->dle || if (c == DLE_FLAG) {
inbuf->inputstate & INS_DLE_command))) { if (inputstate & INS_DLE_char) {
inbuf->inputstate |= INS_DLE_char; /* quoted DLE: clear quote flag */
inputstate &= ~INS_DLE_char;
} else if (cs->dle || (inputstate & INS_DLE_command)) {
/* DLE escape, pass up for handling */
inputstate |= INS_DLE_char;
break; break;
} }
} }
/* regular data byte: append to current skb */
inputstate |= INS_have_data;
*__skb_put(skb, 1) = bitrev8(c);
}
/* pass data up */ /* pass data up */
if (likely(inputstate & INS_have_data)) { if (inputstate & INS_have_data) {
if (likely(!(inputstate & INS_skip_frame))) {
gigaset_skb_rcvd(bcs, skb); gigaset_skb_rcvd(bcs, skb);
inputstate &= ~INS_have_data;
new_rcv_skb(bcs);
} }
inputstate &= ~(INS_have_data | INS_skip_frame);
if (unlikely(bcs->ignore)) { bcs->inputstate = inputstate;
inputstate |= INS_skip_frame; return procbytes;
skb = NULL; }
} else {
skb = dev_alloc_skb(SBUFSIZE + cs->hw_hdr_len); /* process DLE escapes
if (skb != NULL) { * Called whenever a DLE sequence might be encountered in the input stream.
skb_reserve(skb, cs->hw_hdr_len); * Either processes the entire DLE sequence or, if that isn't possible,
} else { * notes the fact that an initial DLE has been received in the INS_DLE_char
dev_warn(cs->dev, * inputstate flag and resumes processing of the sequence on the next call.
"could not allocate new skb\n"); */
inputstate |= INS_skip_frame; static void handle_dle(struct inbuf_t *inbuf)
{
struct cardstate *cs = inbuf->cs;
if (cs->mstate == MS_LOCKED)
return; /* no DLE processing in lock mode */
if (!(inbuf->inputstate & INS_DLE_char)) {
/* no DLE pending */
if (inbuf->data[inbuf->head] == DLE_FLAG &&
(cs->dle || inbuf->inputstate & INS_DLE_command)) {
/* start of DLE sequence */
inbuf->head++;
if (inbuf->head == inbuf->tail ||
inbuf->head == RBUFSIZE) {
/* end of buffer, save for later processing */
inbuf->inputstate |= INS_DLE_char;
return;
} }
} else {
/* regular data byte */
return;
} }
} }
bcs->inputstate = inputstate; /* consume pending DLE */
bcs->skb = skb; inbuf->inputstate &= ~INS_DLE_char;
return startbytes - numbytes;
switch (inbuf->data[inbuf->head]) {
case 'X': /* begin of event message */
if (inbuf->inputstate & INS_command)
dev_notice(cs->dev,
"received <DLE>X in command mode\n");
inbuf->inputstate |= INS_command | INS_DLE_command;
inbuf->head++; /* byte consumed */
break;
case '.': /* end of event message */
if (!(inbuf->inputstate & INS_DLE_command))
dev_notice(cs->dev,
"received <DLE>. without <DLE>X\n");
inbuf->inputstate &= ~INS_DLE_command;
/* return to data mode if in DLE mode */
if (cs->dle)
inbuf->inputstate &= ~INS_command;
inbuf->head++; /* byte consumed */
break;
case DLE_FLAG: /* DLE in data stream */
/* mark as quoted */
inbuf->inputstate |= INS_DLE_char;
if (!(cs->dle || inbuf->inputstate & INS_DLE_command))
dev_notice(cs->dev,
"received <DLE><DLE> not in DLE mode\n");
break; /* quoted byte left in buffer */
default:
dev_notice(cs->dev, "received <DLE><%02x>\n",
inbuf->data[inbuf->head]);
/* quoted byte left in buffer */
}
} }
/** /**
...@@ -330,94 +425,39 @@ static inline int iraw_loop(unsigned char c, unsigned char *src, int numbytes, ...@@ -330,94 +425,39 @@ static inline int iraw_loop(unsigned char c, unsigned char *src, int numbytes,
*/ */
void gigaset_m10x_input(struct inbuf_t *inbuf) void gigaset_m10x_input(struct inbuf_t *inbuf)
{ {
struct cardstate *cs; struct cardstate *cs = inbuf->cs;
unsigned tail, head, numbytes; unsigned numbytes, procbytes;
unsigned char *src, c;
int procbytes;
head = inbuf->head;
tail = inbuf->tail;
gig_dbg(DEBUG_INTR, "buffer state: %u -> %u", head, tail);
if (head != tail) {
cs = inbuf->cs;
src = inbuf->data + head;
numbytes = (head > tail ? RBUFSIZE : tail) - head;
gig_dbg(DEBUG_INTR, "processing %u bytes", numbytes);
while (numbytes) { gig_dbg(DEBUG_INTR, "buffer state: %u -> %u", inbuf->head, inbuf->tail);
if (cs->mstate == MS_LOCKED) {
procbytes = lock_loop(src, numbytes, inbuf);
src += procbytes;
numbytes -= procbytes;
} else {
c = *src++;
--numbytes;
if (c == DLE_FLAG && (cs->dle ||
inbuf->inputstate & INS_DLE_command)) {
if (!(inbuf->inputstate & INS_DLE_char)) {
inbuf->inputstate |= INS_DLE_char;
goto nextbyte;
}
/* <DLE> <DLE> => <DLE> in data stream */
inbuf->inputstate &= ~INS_DLE_char;
}
if (!(inbuf->inputstate & INS_DLE_char)) { while (inbuf->head != inbuf->tail) {
/* check for DLE escape */
handle_dle(inbuf);
/* FIXME use function pointers? */ /* process a contiguous block of bytes */
if (inbuf->inputstate & INS_command) numbytes = (inbuf->head > inbuf->tail ?
procbytes = cmd_loop(c, src, numbytes, inbuf); RBUFSIZE : inbuf->tail) - inbuf->head;
else if (inbuf->bcs->proto2 == L2_HDLC) gig_dbg(DEBUG_INTR, "processing %u bytes", numbytes);
procbytes = hdlc_loop(c, src, numbytes, inbuf); /*
* numbytes may be 0 if handle_dle() ate the last byte.
* This does no harm, *_loop() will just return 0 immediately.
*/
if (cs->mstate == MS_LOCKED)
procbytes = lock_loop(numbytes, inbuf);
else if (inbuf->inputstate & INS_command)
procbytes = cmd_loop(numbytes, inbuf);
else if (cs->bcs->proto2 == L2_HDLC)
procbytes = hdlc_loop(numbytes, inbuf);
else else
procbytes = iraw_loop(c, src, numbytes, inbuf); procbytes = iraw_loop(numbytes, inbuf);
inbuf->head += procbytes;
src += procbytes; /* check for buffer wraparound */
numbytes -= procbytes; if (inbuf->head >= RBUFSIZE)
} else { /* DLE char */ inbuf->head = 0;
inbuf->inputstate &= ~INS_DLE_char;
switch (c) {
case 'X': /*begin of command*/
if (inbuf->inputstate & INS_command)
dev_warn(cs->dev,
"received <DLE> 'X' in command mode\n");
inbuf->inputstate |=
INS_command | INS_DLE_command;
break;
case '.': /*end of command*/
if (!(inbuf->inputstate & INS_command))
dev_warn(cs->dev,
"received <DLE> '.' in hdlc mode\n");
inbuf->inputstate &= cs->dle ?
~(INS_DLE_command|INS_command)
: ~INS_DLE_command;
break;
//case DLE_FLAG: /*DLE_FLAG in data stream*/ /* schon oben behandelt! */
default:
dev_err(cs->dev,
"received 0x10 0x%02x!\n",
(int) c);
/* FIXME: reset driver?? */
}
}
}
nextbyte:
if (!numbytes) {
/* end of buffer, check for wrap */
if (head > tail) {
head = 0;
src = inbuf->data;
numbytes = tail;
} else {
head = tail;
break;
}
}
}
gig_dbg(DEBUG_INTR, "setting head to %u", head); gig_dbg(DEBUG_INTR, "head set to %u", inbuf->head);
inbuf->head = head;
} }
} }
EXPORT_SYMBOL_GPL(gigaset_m10x_input); EXPORT_SYMBOL_GPL(gigaset_m10x_input);
...@@ -563,6 +603,7 @@ static struct sk_buff *iraw_encode(struct sk_buff *skb) ...@@ -563,6 +603,7 @@ static struct sk_buff *iraw_encode(struct sk_buff *skb)
*/ */
int gigaset_m10x_send_skb(struct bc_state *bcs, struct sk_buff *skb) int gigaset_m10x_send_skb(struct bc_state *bcs, struct sk_buff *skb)
{ {
struct cardstate *cs = bcs->cs;
unsigned len = skb->len; unsigned len = skb->len;
unsigned long flags; unsigned long flags;
...@@ -571,16 +612,16 @@ int gigaset_m10x_send_skb(struct bc_state *bcs, struct sk_buff *skb) ...@@ -571,16 +612,16 @@ int gigaset_m10x_send_skb(struct bc_state *bcs, struct sk_buff *skb)
else else
skb = iraw_encode(skb); skb = iraw_encode(skb);
if (!skb) { if (!skb) {
dev_err(bcs->cs->dev, dev_err(cs->dev,
"unable to allocate memory for encoding!\n"); "unable to allocate memory for encoding!\n");
return -ENOMEM; return -ENOMEM;
} }
skb_queue_tail(&bcs->squeue, skb); skb_queue_tail(&bcs->squeue, skb);
spin_lock_irqsave(&bcs->cs->lock, flags); spin_lock_irqsave(&cs->lock, flags);
if (bcs->cs->connected) if (cs->connected)
tasklet_schedule(&bcs->cs->write_tasklet); tasklet_schedule(&cs->write_tasklet);
spin_unlock_irqrestore(&bcs->cs->lock, flags); spin_unlock_irqrestore(&cs->lock, flags);
return len; /* ok so far */ return len; /* ok so far */
} }
......
drivers/isdn/gigaset/common.c
View file @ 2032e2c2
...@@ -400,9 +400,9 @@ static void gigaset_freebcs(struct bc_state *bcs) ...@@ -400,9 +400,9 @@ static void gigaset_freebcs(struct bc_state *bcs)
gig_dbg(DEBUG_INIT, "clearing bcs[%d]->at_state", bcs->channel); gig_dbg(DEBUG_INIT, "clearing bcs[%d]->at_state", bcs->channel);
clear_at_state(&bcs->at_state); clear_at_state(&bcs->at_state);
gig_dbg(DEBUG_INIT, "freeing bcs[%d]->skb", bcs->channel); gig_dbg(DEBUG_INIT, "freeing bcs[%d]->skb", bcs->channel);
if (bcs->skb)
dev_kfree_skb(bcs->skb); dev_kfree_skb(bcs->skb);
bcs->skb = NULL;
for (i = 0; i < AT_NUM; ++i) { for (i = 0; i < AT_NUM; ++i) {
kfree(bcs->commands[i]); kfree(bcs->commands[i]);
bcs->commands[i] = NULL; bcs->commands[i] = NULL;
...@@ -560,16 +560,13 @@ void gigaset_at_init(struct at_state_t *at_state, struct bc_state *bcs, ...@@ -560,16 +560,13 @@ void gigaset_at_init(struct at_state_t *at_state, struct bc_state *bcs,
} }
static void gigaset_inbuf_init(struct inbuf_t *inbuf, struct bc_state *bcs, static void gigaset_inbuf_init(struct inbuf_t *inbuf, struct cardstate *cs)
struct cardstate *cs, int inputstate)
/* inbuf->read must be allocated before! */ /* inbuf->read must be allocated before! */
{ {
inbuf->head = 0; inbuf->head = 0;
inbuf->tail = 0; inbuf->tail = 0;
inbuf->cs = cs; inbuf->cs = cs;
inbuf->bcs = bcs; /*base driver: NULL*/ inbuf->inputstate = INS_command;
inbuf->rcvbuf = NULL;
inbuf->inputstate = inputstate;
} }
/** /**
...@@ -644,16 +641,13 @@ static struct bc_state *gigaset_initbcs(struct bc_state *bcs, ...@@ -644,16 +641,13 @@ static struct bc_state *gigaset_initbcs(struct bc_state *bcs,
bcs->fcs = PPP_INITFCS; bcs->fcs = PPP_INITFCS;
bcs->inputstate = 0; bcs->inputstate = 0;
if (cs->ignoreframes) { if (cs->ignoreframes) {
bcs->inputstate |= INS_skip_frame;
bcs->skb = NULL; bcs->skb = NULL;
} else { } else {
bcs->skb = dev_alloc_skb(SBUFSIZE + cs->hw_hdr_len); bcs->skb = dev_alloc_skb(SBUFSIZE + cs->hw_hdr_len);
if (bcs->skb != NULL) if (bcs->skb != NULL)
skb_reserve(bcs->skb, cs->hw_hdr_len); skb_reserve(bcs->skb, cs->hw_hdr_len);
else { else
pr_err("out of memory\n"); pr_err("out of memory\n");
bcs->inputstate |= INS_skip_frame;
}
} }
bcs->channel = channel; bcs->channel = channel;
...@@ -674,8 +668,8 @@ static struct bc_state *gigaset_initbcs(struct bc_state *bcs, ...@@ -674,8 +668,8 @@ static struct bc_state *gigaset_initbcs(struct bc_state *bcs,
gig_dbg(DEBUG_INIT, " failed"); gig_dbg(DEBUG_INIT, " failed");
gig_dbg(DEBUG_INIT, " freeing bcs[%d]->skb", channel); gig_dbg(DEBUG_INIT, " freeing bcs[%d]->skb", channel);
if (bcs->skb)
dev_kfree_skb(bcs->skb); dev_kfree_skb(bcs->skb);
bcs->skb = NULL;
return NULL; return NULL;
} }
...@@ -764,10 +758,7 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels, ...@@ -764,10 +758,7 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels,
cs->cbytes = 0; cs->cbytes = 0;
gig_dbg(DEBUG_INIT, "setting up inbuf"); gig_dbg(DEBUG_INIT, "setting up inbuf");
if (onechannel) { //FIXME distinction necessary? gigaset_inbuf_init(cs->inbuf, cs);
gigaset_inbuf_init(cs->inbuf, cs->bcs, cs, INS_command);
} else
gigaset_inbuf_init(cs->inbuf, NULL, cs, INS_command);
cs->connected = 0; cs->connected = 0;
cs->isdn_up = 0; cs->isdn_up = 0;
...@@ -854,9 +845,10 @@ void gigaset_bcs_reinit(struct bc_state *bcs) ...@@ -854,9 +845,10 @@ void gigaset_bcs_reinit(struct bc_state *bcs)
bcs->chstate = 0; bcs->chstate = 0;
bcs->ignore = cs->ignoreframes; bcs->ignore = cs->ignoreframes;
if (bcs->ignore) if (bcs->ignore) {
bcs->inputstate |= INS_skip_frame; dev_kfree_skb(bcs->skb);
bcs->skb = NULL;
}
cs->ops->reinitbcshw(bcs); cs->ops->reinitbcshw(bcs);
} }
...@@ -877,8 +869,6 @@ static void cleanup_cs(struct cardstate *cs) ...@@ -877,8 +869,6 @@ static void cleanup_cs(struct cardstate *cs)
free_strings(&cs->at_state); free_strings(&cs->at_state);
gigaset_at_init(&cs->at_state, NULL, cs, 0); gigaset_at_init(&cs->at_state, NULL, cs, 0);
kfree(cs->inbuf->rcvbuf);
cs->inbuf->rcvbuf = NULL;
cs->inbuf->inputstate = INS_command; cs->inbuf->inputstate = INS_command;
cs->inbuf->head = 0; cs->inbuf->head = 0;
cs->inbuf->tail = 0; cs->inbuf->tail = 0;
......
drivers/isdn/gigaset/gigaset.h
View file @ 2032e2c2
...@@ -223,12 +223,11 @@ void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg, ...@@ -223,12 +223,11 @@ void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
#define EV_BC_CLOSED -118 #define EV_BC_CLOSED -118
/* input state */ /* input state */
#define INS_command 0x0001 #define INS_command 0x0001 /* receiving messages (not payload data) */
#define INS_DLE_char 0x0002 #define INS_DLE_char 0x0002 /* DLE flag received (in DLE mode) */
#define INS_byte_stuff 0x0004 #define INS_byte_stuff 0x0004
#define INS_have_data 0x0008 #define INS_have_data 0x0008
#define INS_skip_frame 0x0010 #define INS_DLE_command 0x0020 /* DLE message start (<DLE> X) received */
#define INS_DLE_command 0x0020
#define INS_flag_hunt 0x0040 #define INS_flag_hunt 0x0040
/* channel state */ /* channel state */
...@@ -290,8 +289,6 @@ extern struct reply_t gigaset_tab_cid[]; ...@@ -290,8 +289,6 @@ extern struct reply_t gigaset_tab_cid[];
extern struct reply_t gigaset_tab_nocid[]; extern struct reply_t gigaset_tab_nocid[];
struct inbuf_t { struct inbuf_t {
unsigned char *rcvbuf; /* usb-gigaset receive buffer */
struct bc_state *bcs;
struct cardstate *cs; struct cardstate *cs;
int inputstate; int inputstate;
int head, tail; int head, tail;
...@@ -483,8 +480,8 @@ struct cardstate { ...@@ -483,8 +480,8 @@ struct cardstate {
struct timer_list timer; struct timer_list timer;
int retry_count; int retry_count;
int dle; /* !=0 if modem commands/responses are int dle; /* !=0 if DLE mode is active
dle encoded */ (ZDLE=1 received -- M10x only) */
int cur_at_seq; /* sequence of AT commands being int cur_at_seq; /* sequence of AT commands being
processed */ processed */
int curchannel; /* channel those commands are meant int curchannel; /* channel those commands are meant
......
drivers/isdn/gigaset/usb-gigaset.c
View file @ 2032e2c2
...@@ -43,14 +43,14 @@ MODULE_PARM_DESC(cidmode, "Call-ID mode"); ...@@ -43,14 +43,14 @@ MODULE_PARM_DESC(cidmode, "Call-ID mode");
#define GIGASET_MODULENAME "usb_gigaset" #define GIGASET_MODULENAME "usb_gigaset"
#define GIGASET_DEVNAME "ttyGU" #define GIGASET_DEVNAME "ttyGU"
#define IF_WRITEBUF 2000 //FIXME // WAKEUP_CHARS: 256 #define IF_WRITEBUF 2000 /* arbitrary limit */
/* Values for the Gigaset M105 Data */ /* Values for the Gigaset M105 Data */
#define USB_M105_VENDOR_ID 0x0681 #define USB_M105_VENDOR_ID 0x0681
#define USB_M105_PRODUCT_ID 0x0009 #define USB_M105_PRODUCT_ID 0x0009
/* table of devices that work with this driver */ /* table of devices that work with this driver */
static const struct usb_device_id gigaset_table [] = { static const struct usb_device_id gigaset_table[] = {
{ USB_DEVICE(USB_M105_VENDOR_ID, USB_M105_PRODUCT_ID) }, { USB_DEVICE(USB_M105_VENDOR_ID, USB_M105_PRODUCT_ID) },
{ } /* Terminating entry */ { } /* Terminating entry */
}; };
...@@ -97,8 +97,8 @@ MODULE_DEVICE_TABLE(usb, gigaset_table); ...@@ -97,8 +97,8 @@ MODULE_DEVICE_TABLE(usb, gigaset_table);
* 41 19 -- -- -- -- 06 00 00 00 00 xx 11 13 * 41 19 -- -- -- -- 06 00 00 00 00 xx 11 13
* Used after every "configuration sequence" (RQ 12, RQs 01/03/13). * Used after every "configuration sequence" (RQ 12, RQs 01/03/13).
* xx is usually 0x00 but was 0x7e before starting data transfer * xx is usually 0x00 but was 0x7e before starting data transfer
* in unimodem mode. So, this might be an array of characters that need * in unimodem mode. So, this might be an array of characters that
* special treatment ("commit all bufferd data"?), 11=^Q, 13=^S. * need special treatment ("commit all bufferd data"?), 11=^Q, 13=^S.
* *
* Unimodem mode: use "modprobe ppp_async flag_time=0" as the device _needs_ two * Unimodem mode: use "modprobe ppp_async flag_time=0" as the device _needs_ two
* flags per packet. * flags per packet.
...@@ -114,7 +114,7 @@ static int gigaset_suspend(struct usb_interface *intf, pm_message_t message); ...@@ -114,7 +114,7 @@ static int gigaset_suspend(struct usb_interface *intf, pm_message_t message);
static int gigaset_resume(struct usb_interface *intf); static int gigaset_resume(struct usb_interface *intf);
static int gigaset_pre_reset(struct usb_interface *intf); static int gigaset_pre_reset(struct usb_interface *intf);
static struct gigaset_driver *driver = NULL; static struct gigaset_driver *driver;
/* usb specific object needed to register this driver with the usb subsystem */ /* usb specific object needed to register this driver with the usb subsystem */
static struct usb_driver gigaset_usb_driver = { static struct usb_driver gigaset_usb_driver = {
...@@ -141,6 +141,7 @@ struct usb_cardstate { ...@@ -141,6 +141,7 @@ struct usb_cardstate {
struct urb *bulk_out_urb; struct urb *bulk_out_urb;
/* Input buffer */ /* Input buffer */
unsigned char *rcvbuf;
int rcvbuf_size; int rcvbuf_size;
struct urb *read_urb; struct urb *read_urb;
__u8 int_in_endpointAddr; __u8 int_in_endpointAddr;
...@@ -164,13 +165,11 @@ static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state, ...@@ -164,13 +165,11 @@ static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state,
val = tiocm_to_gigaset(new_state); val = tiocm_to_gigaset(new_state);
gig_dbg(DEBUG_USBREQ, "set flags 0x%02x with mask 0x%02x", val, mask); gig_dbg(DEBUG_USBREQ, "set flags 0x%02x with mask 0x%02x", val, mask);
// don't use this in an interrupt/BH
r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 7, 0x41, r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 7, 0x41,
(val & 0xff) | ((mask & 0xff) << 8), 0, (val & 0xff) | ((mask & 0xff) << 8), 0,
NULL, 0, 2000 /* timeout? */); NULL, 0, 2000 /* timeout? */);
if (r < 0) if (r < 0)
return r; return r;
//..
return 0; return 0;
} }
...@@ -220,7 +219,6 @@ static int gigaset_baud_rate(struct cardstate *cs, unsigned cflag) ...@@ -220,7 +219,6 @@ static int gigaset_baud_rate(struct cardstate *cs, unsigned cflag)
cflag &= CBAUD; cflag &= CBAUD;
switch (cflag) { switch (cflag) {
//FIXME more values?
case B300: rate = 300; break; case B300: rate = 300; break;
case B600: rate = 600; break; case B600: rate = 600; break;
case B1200: rate = 1200; break; case B1200: rate = 1200; break;
...@@ -273,7 +271,7 @@ static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag) ...@@ -273,7 +271,7 @@ static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag)
/* set the number of stop bits */ /* set the number of stop bits */
if (cflag & CSTOPB) { if (cflag & CSTOPB) {
if ((cflag & CSIZE) == CS5) if ((cflag & CSIZE) == CS5)
val |= 1; /* 1.5 stop bits */ //FIXME is this okay? val |= 1; /* 1.5 stop bits */
else else
val |= 2; /* 2 stop bits */ val |= 2; /* 2 stop bits */
} }
...@@ -282,7 +280,7 @@ static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag) ...@@ -282,7 +280,7 @@ static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag)
} }
/*================================================================================================================*/ /*============================================================================*/
static int gigaset_init_bchannel(struct bc_state *bcs) static int gigaset_init_bchannel(struct bc_state *bcs)
{ {
/* nothing to do for M10x */ /* nothing to do for M10x */
...@@ -344,7 +342,6 @@ static void gigaset_modem_fill(unsigned long data) ...@@ -344,7 +342,6 @@ static void gigaset_modem_fill(unsigned long data)
if (write_modem(cs) < 0) { if (write_modem(cs) < 0) {
gig_dbg(DEBUG_OUTPUT, gig_dbg(DEBUG_OUTPUT,
"modem_fill: write_modem failed"); "modem_fill: write_modem failed");
// FIXME should we tell the LL?
again = 1; /* no callback will be called! */ again = 1; /* no callback will be called! */
} }
} }
...@@ -356,8 +353,8 @@ static void gigaset_modem_fill(unsigned long data) ...@@ -356,8 +353,8 @@ static void gigaset_modem_fill(unsigned long data)
*/ */
static void gigaset_read_int_callback(struct urb *urb) static void gigaset_read_int_callback(struct urb *urb)
{ {
struct inbuf_t *inbuf = urb->context; struct cardstate *cs = urb->context;
struct cardstate *cs = inbuf->cs; struct inbuf_t *inbuf = cs->inbuf;
int status = urb->status; int status = urb->status;
int r; int r;
unsigned numbytes; unsigned numbytes;
...@@ -368,7 +365,7 @@ static void gigaset_read_int_callback(struct urb *urb) ...@@ -368,7 +365,7 @@ static void gigaset_read_int_callback(struct urb *urb)
numbytes = urb->actual_length; numbytes = urb->actual_length;
if (numbytes) { if (numbytes) {
src = inbuf->rcvbuf; src = cs->hw.usb->rcvbuf;
if (unlikely(*src)) if (unlikely(*src))
dev_warn(cs->dev, dev_warn(cs->dev,
"%s: There was no leading 0, but 0x%02x!\n", "%s: There was no leading 0, but 0x%02x!\n",
...@@ -440,7 +437,7 @@ static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb) ...@@ -440,7 +437,7 @@ static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb)
struct cmdbuf_t *tcb; struct cmdbuf_t *tcb;
unsigned long flags; unsigned long flags;
int count; int count;
int status = -ENOENT; // FIXME int status = -ENOENT;
struct usb_cardstate *ucs = cs->hw.usb; struct usb_cardstate *ucs = cs->hw.usb;
do { do {
...@@ -480,7 +477,9 @@ static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb) ...@@ -480,7 +477,9 @@ static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb)
ucs->busy = 1; ucs->busy = 1;
spin_lock_irqsave(&cs->lock, flags); spin_lock_irqsave(&cs->lock, flags);
status = cs->connected ? usb_submit_urb(ucs->bulk_out_urb, GFP_ATOMIC) : -ENODEV; status = cs->connected ?
usb_submit_urb(ucs->bulk_out_urb, GFP_ATOMIC) :
-ENODEV;
spin_unlock_irqrestore(&cs->lock, flags); spin_unlock_irqrestore(&cs->lock, flags);
if (status) { if (status) {
...@@ -510,8 +509,8 @@ static int gigaset_write_cmd(struct cardstate *cs, const unsigned char *buf, ...@@ -510,8 +509,8 @@ static int gigaset_write_cmd(struct cardstate *cs, const unsigned char *buf,
if (len <= 0) if (len <= 0)
return 0; return 0;
cb = kmalloc(sizeof(struct cmdbuf_t) + len, GFP_ATOMIC);
if (!(cb = kmalloc(sizeof(struct cmdbuf_t) + len, GFP_ATOMIC))) { if (!cb) {
dev_err(cs->dev, "%s: out of memory\n", __func__); dev_err(cs->dev, "%s: out of memory\n", __func__);
return -ENOMEM; return -ENOMEM;
} }
...@@ -637,9 +636,7 @@ static int write_modem(struct cardstate *cs) ...@@ -637,9 +636,7 @@ static int write_modem(struct cardstate *cs)
return -EINVAL; return -EINVAL;
} }
/* Copy data to bulk out buffer and // FIXME copying not necessary /* Copy data to bulk out buffer and transmit data */
* transmit data
*/
count = min(bcs->tx_skb->len, (unsigned) ucs->bulk_out_size); count = min(bcs->tx_skb->len, (unsigned) ucs->bulk_out_size);
skb_copy_from_linear_data(bcs->tx_skb, ucs->bulk_out_buffer, count); skb_copy_from_linear_data(bcs->tx_skb, ucs->bulk_out_buffer, count);
skb_pull(bcs->tx_skb, count); skb_pull(bcs->tx_skb, count);
...@@ -650,7 +647,8 @@ static int write_modem(struct cardstate *cs) ...@@ -650,7 +647,8 @@ static int write_modem(struct cardstate *cs)
if (cs->connected) { if (cs->connected) {
usb_fill_bulk_urb(ucs->bulk_out_urb, ucs->udev, usb_fill_bulk_urb(ucs->bulk_out_urb, ucs->udev,
usb_sndbulkpipe(ucs->udev, usb_sndbulkpipe(ucs->udev,
ucs->bulk_out_endpointAddr & 0x0f), ucs->bulk_out_endpointAddr &
0x0f),
ucs->bulk_out_buffer, count, ucs->bulk_out_buffer, count,
gigaset_write_bulk_callback, cs); gigaset_write_bulk_callback, cs);
ret = usb_submit_urb(ucs->bulk_out_urb, GFP_ATOMIC); ret = usb_submit_urb(ucs->bulk_out_urb, GFP_ATOMIC);
...@@ -666,7 +664,7 @@ static int write_modem(struct cardstate *cs) ...@@ -666,7 +664,7 @@ static int write_modem(struct cardstate *cs)
if (!bcs->tx_skb->len) { if (!bcs->tx_skb->len) {
/* skb sent completely */ /* skb sent completely */
gigaset_skb_sent(bcs, bcs->tx_skb); //FIXME also, when ret<0? gigaset_skb_sent(bcs, bcs->tx_skb);
gig_dbg(DEBUG_INTR, "kfree skb (Adr: %lx)!", gig_dbg(DEBUG_INTR, "kfree skb (Adr: %lx)!",
(unsigned long) bcs->tx_skb); (unsigned long) bcs->tx_skb);
...@@ -763,8 +761,8 @@ static int gigaset_probe(struct usb_interface *interface, ...@@ -763,8 +761,8 @@ static int gigaset_probe(struct usb_interface *interface,
buffer_size = le16_to_cpu(endpoint->wMaxPacketSize); buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
ucs->rcvbuf_size = buffer_size; ucs->rcvbuf_size = buffer_size;
ucs->int_in_endpointAddr = endpoint->bEndpointAddress; ucs->int_in_endpointAddr = endpoint->bEndpointAddress;
cs->inbuf[0].rcvbuf = kmalloc(buffer_size, GFP_KERNEL); ucs->rcvbuf = kmalloc(buffer_size, GFP_KERNEL);
if (!cs->inbuf[0].rcvbuf) { if (!ucs->rcvbuf) {
dev_err(cs->dev, "Couldn't allocate rcvbuf\n"); dev_err(cs->dev, "Couldn't allocate rcvbuf\n");
retval = -ENOMEM; retval = -ENOMEM;
goto error; goto error;
...@@ -773,9 +771,9 @@ static int gigaset_probe(struct usb_interface *interface, ...@@ -773,9 +771,9 @@ static int gigaset_probe(struct usb_interface *interface,
usb_fill_int_urb(ucs->read_urb, udev, usb_fill_int_urb(ucs->read_urb, udev,
usb_rcvintpipe(udev, usb_rcvintpipe(udev,
endpoint->bEndpointAddress & 0x0f), endpoint->bEndpointAddress & 0x0f),
cs->inbuf[0].rcvbuf, buffer_size, ucs->rcvbuf, buffer_size,
gigaset_read_int_callback, gigaset_read_int_callback,
cs->inbuf + 0, endpoint->bInterval); cs, endpoint->bInterval);
retval = usb_submit_urb(ucs->read_urb, GFP_KERNEL); retval = usb_submit_urb(ucs->read_urb, GFP_KERNEL);
if (retval) { if (retval) {
...@@ -789,7 +787,7 @@ static int gigaset_probe(struct usb_interface *interface, ...@@ -789,7 +787,7 @@ static int gigaset_probe(struct usb_interface *interface,
if (!gigaset_start(cs)) { if (!gigaset_start(cs)) {
tasklet_kill(&cs->write_tasklet); tasklet_kill(&cs->write_tasklet);
retval = -ENODEV; //FIXME retval = -ENODEV;
goto error; goto error;
} }
return 0; return 0;
...@@ -798,11 +796,11 @@ static int gigaset_probe(struct usb_interface *interface, ...@@ -798,11 +796,11 @@ static int gigaset_probe(struct usb_interface *interface,
usb_kill_urb(ucs->read_urb); usb_kill_urb(ucs->read_urb);
kfree(ucs->bulk_out_buffer); kfree(ucs->bulk_out_buffer);
usb_free_urb(ucs->bulk_out_urb); usb_free_urb(ucs->bulk_out_urb);
kfree(cs->inbuf[0].rcvbuf); kfree(ucs->rcvbuf);
usb_free_urb(ucs->read_urb); usb_free_urb(ucs->read_urb);
usb_set_intfdata(interface, NULL); usb_set_intfdata(interface, NULL);
ucs->read_urb = ucs->bulk_out_urb = NULL; ucs->read_urb = ucs->bulk_out_urb = NULL;
cs->inbuf[0].rcvbuf = ucs->bulk_out_buffer = NULL; ucs->rcvbuf = ucs->bulk_out_buffer = NULL;
usb_put_dev(ucs->udev); usb_put_dev(ucs->udev);
ucs->udev = NULL; ucs->udev = NULL;
ucs->interface = NULL; ucs->interface = NULL;
...@@ -831,10 +829,10 @@ static void gigaset_disconnect(struct usb_interface *interface) ...@@ -831,10 +829,10 @@ static void gigaset_disconnect(struct usb_interface *interface)
kfree(ucs->bulk_out_buffer); kfree(ucs->bulk_out_buffer);
usb_free_urb(ucs->bulk_out_urb); usb_free_urb(ucs->bulk_out_urb);
kfree(cs->inbuf[0].rcvbuf); kfree(ucs->rcvbuf);
usb_free_urb(ucs->read_urb); usb_free_urb(ucs->read_urb);
ucs->read_urb = ucs->bulk_out_urb = NULL; ucs->read_urb = ucs->bulk_out_urb = NULL;
cs->inbuf[0].rcvbuf = ucs->bulk_out_buffer = NULL; ucs->rcvbuf = ucs->bulk_out_buffer = NULL;
usb_put_dev(ucs->udev); usb_put_dev(ucs->udev);
ucs->interface = NULL; ucs->interface = NULL;
...@@ -916,9 +914,10 @@ static int __init usb_gigaset_init(void) ...@@ -916,9 +914,10 @@ static int __init usb_gigaset_init(void)
int result; int result;
/* allocate memory for our driver state and intialize it */ /* allocate memory for our driver state and intialize it */
if ((driver = gigaset_initdriver(GIGASET_MINOR, GIGASET_MINORS, driver = gigaset_initdriver(GIGASET_MINOR, GIGASET_MINORS,
GIGASET_MODULENAME, GIGASET_DEVNAME, GIGASET_MODULENAME, GIGASET_DEVNAME,
&ops, THIS_MODULE)) == NULL) &ops, THIS_MODULE);
if (driver == NULL)
goto error; goto error;
/* register this driver with the USB subsystem */ /* register this driver with the USB subsystem */
......
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