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path: root/drivers/isdn/gigaset/i4l.c
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Diffstat (limited to 'drivers/isdn/gigaset/i4l.c')
-rw-r--r--drivers/isdn/gigaset/i4l.c231
1 files changed, 119 insertions, 112 deletions
diff --git a/drivers/isdn/gigaset/i4l.c b/drivers/isdn/gigaset/i4l.c
index 731a675f21b0..0815dbfb8291 100644
--- a/drivers/isdn/gigaset/i4l.c
+++ b/drivers/isdn/gigaset/i4l.c
@@ -1,9 +1,9 @@
/*
* Stuff used by all variants of the driver
*
- * Copyright (c) 2001 by Stefan Eilers (Eilers.Stefan@epost.de),
- * Hansjoerg Lipp (hjlipp@web.de),
- * Tilman Schmidt (tilman@imap.cc).
+ * Copyright (c) 2001 by Stefan Eilers,
+ * Hansjoerg Lipp <hjlipp@web.de>,
+ * Tilman Schmidt <tilman@imap.cc>.
*
* =====================================================================
* This program is free software; you can redistribute it and/or
@@ -11,15 +11,11 @@
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
* =====================================================================
- * ToDo: ...
- * =====================================================================
- * Version: $Id: i4l.c,v 1.3.2.9 2006/02/04 18:28:16 hjlipp Exp $
- * =====================================================================
*/
#include "gigaset.h"
-/* == Handling of I4L IO ============================================================================*/
+/* == Handling of I4L IO =====================================================*/
/* writebuf_from_LL
* called by LL to transmit data on an open channel
@@ -29,14 +25,16 @@
* parameters:
* driverID driver ID as assigned by LL
* channel channel number
- * ack if != 0 LL wants to be notified on completion via statcallb(ISDN_STAT_BSENT)
+ * ack if != 0 LL wants to be notified on completion via
+ * statcallb(ISDN_STAT_BSENT)
* skb skb containing data to send
* return value:
* number of accepted bytes
* 0 if temporarily unable to accept data (out of buffer space)
* <0 on error (eg. -EINVAL)
*/
-static int writebuf_from_LL(int driverID, int channel, int ack, struct sk_buff *skb)
+static int writebuf_from_LL(int driverID, int channel, int ack,
+ struct sk_buff *skb)
{
struct cardstate *cs;
struct bc_state *bcs;
@@ -54,31 +52,28 @@ static int writebuf_from_LL(int driverID, int channel, int ack, struct sk_buff *
bcs = &cs->bcs[channel];
len = skb->len;
- dbg(DEBUG_LLDATA,
- "Receiving data from LL (id: %d, channel: %d, ack: %d, size: %d)",
- driverID, channel, ack, len);
+ gig_dbg(DEBUG_LLDATA,
+ "Receiving data from LL (id: %d, ch: %d, ack: %d, sz: %d)",
+ driverID, channel, ack, len);
if (!len) {
if (ack)
- warn("not ACKing empty packet from LL");
+ notice("%s: not ACKing empty packet", __func__);
return 0;
}
if (len > MAX_BUF_SIZE) {
- err("%s: packet too large (%d bytes)", __func__, channel);
+ err("%s: packet too large (%d bytes)", __func__, len);
return -EINVAL;
}
- if (!atomic_read(&cs->connected))
- return -ENODEV;
-
skblen = ack ? len : 0;
skb->head[0] = skblen & 0xff;
skb->head[1] = skblen >> 8;
- dbg(DEBUG_MCMD, "skb: len=%u, skblen=%u: %02x %02x", len, skblen,
- (unsigned) skb->head[0], (unsigned) skb->head[1]);
+ gig_dbg(DEBUG_MCMD, "skb: len=%u, skblen=%u: %02x %02x",
+ len, skblen, (unsigned) skb->head[0], (unsigned) skb->head[1]);
/* pass to device-specific module */
- return cs->ops->send_skb(bcs, skb);
+ return cs->ops->send_skb(bcs, skb); //FIXME cs->ops->send_skb() must handle !cs->connected correctly
}
void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *skb)
@@ -89,14 +84,14 @@ void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *skb)
++bcs->trans_up;
if (skb->len)
- warn("%s: skb->len==%d", __func__, skb->len);
+ dev_warn(bcs->cs->dev, "%s: skb->len==%d\n",
+ __func__, skb->len);
len = (unsigned char) skb->head[0] |
(unsigned) (unsigned char) skb->head[1] << 8;
if (len) {
- dbg(DEBUG_MCMD,
- "Acknowledge sending to LL (id: %d, channel: %d size: %u)",
- bcs->cs->myid, bcs->channel, len);
+ gig_dbg(DEBUG_MCMD, "ACKing to LL (id: %d, ch: %d, sz: %u)",
+ bcs->cs->myid, bcs->channel, len);
response.driver = bcs->cs->myid;
response.command = ISDN_STAT_BSENT;
@@ -119,15 +114,12 @@ static int command_from_LL(isdn_ctrl *cntrl)
struct bc_state *bcs;
int retval = 0;
struct setup_parm *sp;
+ unsigned param;
+ unsigned long flags;
- //dbg(DEBUG_ANY, "Gigaset_HW: Receiving command");
gigaset_debugdrivers();
- /* Terminate this call if no device is present. Bt if the command is "ISDN_CMD_LOCK" or
- * "ISDN_CMD_UNLOCK" then execute it due to the fact that they are device independent !
- */
- //FIXME "remove test for &connected"
- if ((!cs || !atomic_read(&cs->connected))) {
+ if (!cs) {
warn("LL tried to access unknown device with nr. %d",
cntrl->driver);
return -ENODEV;
@@ -135,29 +127,30 @@ static int command_from_LL(isdn_ctrl *cntrl)
switch (cntrl->command) {
case ISDN_CMD_IOCTL:
-
- dbg(DEBUG_ANY, "ISDN_CMD_IOCTL (driver:%d,arg: %ld)",
- cntrl->driver, cntrl->arg);
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_IOCTL (driver: %d, arg: %ld)",
+ cntrl->driver, cntrl->arg);
warn("ISDN_CMD_IOCTL is not supported.");
return -EINVAL;
case ISDN_CMD_DIAL:
- dbg(DEBUG_ANY, "ISDN_CMD_DIAL (driver: %d, channel: %ld, "
- "phone: %s,ownmsn: %s, si1: %d, si2: %d)",
- cntrl->driver, cntrl->arg,
- cntrl->parm.setup.phone, cntrl->parm.setup.eazmsn,
- cntrl->parm.setup.si1, cntrl->parm.setup.si2);
+ gig_dbg(DEBUG_ANY,
+ "ISDN_CMD_DIAL (driver: %d, ch: %ld, "
+ "phone: %s, ownmsn: %s, si1: %d, si2: %d)",
+ cntrl->driver, cntrl->arg,
+ cntrl->parm.setup.phone, cntrl->parm.setup.eazmsn,
+ cntrl->parm.setup.si1, cntrl->parm.setup.si2);
if (cntrl->arg >= cs->channels) {
- err("invalid channel (%d)", (int) cntrl->arg);
+ err("ISDN_CMD_DIAL: invalid channel (%d)",
+ (int) cntrl->arg);
return -EINVAL;
}
bcs = cs->bcs + cntrl->arg;
if (!gigaset_get_channel(bcs)) {
- err("channel not free");
+ err("ISDN_CMD_DIAL: channel not free");
return -EBUSY;
}
@@ -169,42 +162,46 @@ static int command_from_LL(isdn_ctrl *cntrl)
}
*sp = cntrl->parm.setup;
- if (!gigaset_add_event(cs, &bcs->at_state, EV_DIAL, sp,
- atomic_read(&bcs->at_state.seq_index),
- NULL)) {
+ spin_lock_irqsave(&cs->lock, flags);
+ param = bcs->at_state.seq_index;
+ spin_unlock_irqrestore(&cs->lock, flags);
+
+ if (!gigaset_add_event(cs, &bcs->at_state, EV_DIAL, sp, param,
+ NULL)) {
//FIXME what should we do?
kfree(sp);
gigaset_free_channel(bcs);
return -ENOMEM;
}
- dbg(DEBUG_CMD, "scheduling DIAL");
+ gig_dbg(DEBUG_CMD, "scheduling DIAL");
gigaset_schedule_event(cs);
break;
case ISDN_CMD_ACCEPTD: //FIXME
- dbg(DEBUG_ANY, "ISDN_CMD_ACCEPTD");
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_ACCEPTD");
if (cntrl->arg >= cs->channels) {
- err("invalid channel (%d)", (int) cntrl->arg);
+ err("ISDN_CMD_ACCEPTD: invalid channel (%d)",
+ (int) cntrl->arg);
return -EINVAL;
}
if (!gigaset_add_event(cs, &cs->bcs[cntrl->arg].at_state,
- EV_ACCEPT, NULL, 0, NULL)) {
+ EV_ACCEPT, NULL, 0, NULL)) {
//FIXME what should we do?
return -ENOMEM;
}
- dbg(DEBUG_CMD, "scheduling ACCEPT");
+ gig_dbg(DEBUG_CMD, "scheduling ACCEPT");
gigaset_schedule_event(cs);
break;
case ISDN_CMD_ACCEPTB:
- dbg(DEBUG_ANY, "ISDN_CMD_ACCEPTB");
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_ACCEPTB");
break;
case ISDN_CMD_HANGUP:
- dbg(DEBUG_ANY,
- "ISDN_CMD_HANGUP (channel: %d)", (int) cntrl->arg);
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_HANGUP (ch: %d)",
+ (int) cntrl->arg);
if (cntrl->arg >= cs->channels) {
err("ISDN_CMD_HANGUP: invalid channel (%u)",
@@ -213,66 +210,68 @@ static int command_from_LL(isdn_ctrl *cntrl)
}
if (!gigaset_add_event(cs, &cs->bcs[cntrl->arg].at_state,
- EV_HUP, NULL, 0, NULL)) {
+ EV_HUP, NULL, 0, NULL)) {
//FIXME what should we do?
return -ENOMEM;
}
- dbg(DEBUG_CMD, "scheduling HUP");
+ gig_dbg(DEBUG_CMD, "scheduling HUP");
gigaset_schedule_event(cs);
break;
- case ISDN_CMD_CLREAZ: /* Do not signal incoming signals */ //FIXME
- dbg(DEBUG_ANY, "ISDN_CMD_CLREAZ");
+ case ISDN_CMD_CLREAZ: /* Do not signal incoming signals */ //FIXME
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_CLREAZ");
break;
- case ISDN_CMD_SETEAZ: /* Signal incoming calls for given MSN */ //FIXME
- dbg(DEBUG_ANY,
- "ISDN_CMD_SETEAZ (id:%d, channel: %ld, number: %s)",
- cntrl->driver, cntrl->arg, cntrl->parm.num);
+ case ISDN_CMD_SETEAZ: /* Signal incoming calls for given MSN */ //FIXME
+ gig_dbg(DEBUG_ANY,
+ "ISDN_CMD_SETEAZ (id: %d, ch: %ld, number: %s)",
+ cntrl->driver, cntrl->arg, cntrl->parm.num);
break;
- case ISDN_CMD_SETL2: /* Set L2 to given protocol */
- dbg(DEBUG_ANY, "ISDN_CMD_SETL2 (Channel: %ld, Proto: %lx)",
- cntrl->arg & 0xff, (cntrl->arg >> 8));
+ case ISDN_CMD_SETL2: /* Set L2 to given protocol */
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_SETL2 (ch: %ld, proto: %lx)",
+ cntrl->arg & 0xff, (cntrl->arg >> 8));
if ((cntrl->arg & 0xff) >= cs->channels) {
- err("invalid channel (%u)",
+ err("ISDN_CMD_SETL2: invalid channel (%u)",
(unsigned) cntrl->arg & 0xff);
return -EINVAL;
}
if (!gigaset_add_event(cs, &cs->bcs[cntrl->arg & 0xff].at_state,
- EV_PROTO_L2, NULL, cntrl->arg >> 8,
- NULL)) {
+ EV_PROTO_L2, NULL, cntrl->arg >> 8,
+ NULL)) {
//FIXME what should we do?
return -ENOMEM;
}
- dbg(DEBUG_CMD, "scheduling PROTO_L2");
+ gig_dbg(DEBUG_CMD, "scheduling PROTO_L2");
gigaset_schedule_event(cs);
break;
- case ISDN_CMD_SETL3: /* Set L3 to given protocol */
- dbg(DEBUG_ANY, "ISDN_CMD_SETL3 (Channel: %ld, Proto: %lx)",
- cntrl->arg & 0xff, (cntrl->arg >> 8));
+ case ISDN_CMD_SETL3: /* Set L3 to given protocol */
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_SETL3 (ch: %ld, proto: %lx)",
+ cntrl->arg & 0xff, (cntrl->arg >> 8));
if ((cntrl->arg & 0xff) >= cs->channels) {
- err("invalid channel (%u)",
+ err("ISDN_CMD_SETL3: invalid channel (%u)",
(unsigned) cntrl->arg & 0xff);
return -EINVAL;
}
if (cntrl->arg >> 8 != ISDN_PROTO_L3_TRANS) {
- err("invalid protocol %lu", cntrl->arg >> 8);
+ err("ISDN_CMD_SETL3: invalid protocol %lu",
+ cntrl->arg >> 8);
return -EINVAL;
}
break;
case ISDN_CMD_PROCEED:
- dbg(DEBUG_ANY, "ISDN_CMD_PROCEED"); //FIXME
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_PROCEED"); //FIXME
break;
case ISDN_CMD_ALERT:
- dbg(DEBUG_ANY, "ISDN_CMD_ALERT"); //FIXME
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_ALERT"); //FIXME
if (cntrl->arg >= cs->channels) {
- err("invalid channel (%d)", (int) cntrl->arg);
+ err("ISDN_CMD_ALERT: invalid channel (%d)",
+ (int) cntrl->arg);
return -EINVAL;
}
//bcs = cs->bcs + cntrl->arg;
@@ -280,32 +279,31 @@ static int command_from_LL(isdn_ctrl *cntrl)
// FIXME
break;
case ISDN_CMD_REDIR:
- dbg(DEBUG_ANY, "ISDN_CMD_REDIR"); //FIXME
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_REDIR"); //FIXME
break;
case ISDN_CMD_PROT_IO:
- dbg(DEBUG_ANY, "ISDN_CMD_PROT_IO");
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_PROT_IO");
break;
case ISDN_CMD_FAXCMD:
- dbg(DEBUG_ANY, "ISDN_CMD_FAXCMD");
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_FAXCMD");
break;
case ISDN_CMD_GETL2:
- dbg(DEBUG_ANY, "ISDN_CMD_GETL2");
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_GETL2");
break;
case ISDN_CMD_GETL3:
- dbg(DEBUG_ANY, "ISDN_CMD_GETL3");
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_GETL3");
break;
case ISDN_CMD_GETEAZ:
- dbg(DEBUG_ANY, "ISDN_CMD_GETEAZ");
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_GETEAZ");
break;
case ISDN_CMD_SETSIL:
- dbg(DEBUG_ANY, "ISDN_CMD_SETSIL");
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_SETSIL");
break;
case ISDN_CMD_GETSIL:
- dbg(DEBUG_ANY, "ISDN_CMD_GETSIL");
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_GETSIL");
break;
default:
- err("unknown command %d from LL",
- cntrl->command);
+ err("unknown command %d from LL", cntrl->command);
return -EINVAL;
}
@@ -350,7 +348,8 @@ int gigaset_isdn_setup_dial(struct at_state_t *at_state, void *data)
proto = 2; /* 0: Bitsynchron, 1: HDLC, 2: voice */
break;
default:
- err("invalid protocol: %u", bcs->proto2);
+ dev_err(bcs->cs->dev, "%s: invalid L2 protocol: %u\n",
+ __func__, bcs->proto2);
return -EINVAL;
}
@@ -378,7 +377,7 @@ int gigaset_isdn_setup_dial(struct at_state_t *at_state, void *data)
bcs->commands[i] = NULL;
if (length[i] &&
!(bcs->commands[i] = kmalloc(length[i], GFP_ATOMIC))) {
- err("out of memory");
+ dev_err(bcs->cs->dev, "out of memory\n");
return -ENOMEM;
}
}
@@ -396,10 +395,14 @@ int gigaset_isdn_setup_dial(struct at_state_t *at_state, void *data)
}
if (bcs->commands[AT_MSN])
- snprintf(bcs->commands[AT_MSN], length[AT_MSN], "^SMSN=%s\r", sp->eazmsn);
- snprintf(bcs->commands[AT_BC ], length[AT_BC ], "^SBC=%s\r", bc);
- snprintf(bcs->commands[AT_PROTO], length[AT_PROTO], "^SBPR=%u\r", proto);
- snprintf(bcs->commands[AT_ISO ], length[AT_ISO ], "^SISO=%u\r", (unsigned)bcs->channel + 1);
+ snprintf(bcs->commands[AT_MSN], length[AT_MSN],
+ "^SMSN=%s\r", sp->eazmsn);
+ snprintf(bcs->commands[AT_BC ], length[AT_BC ],
+ "^SBC=%s\r", bc);
+ snprintf(bcs->commands[AT_PROTO], length[AT_PROTO],
+ "^SBPR=%u\r", proto);
+ snprintf(bcs->commands[AT_ISO ], length[AT_ISO ],
+ "^SISO=%u\r", (unsigned)bcs->channel + 1);
return 0;
}
@@ -419,7 +422,8 @@ int gigaset_isdn_setup_accept(struct at_state_t *at_state)
proto = 2; /* 0: Bitsynchron, 1: HDLC, 2: voice */
break;
default:
- err("invalid protocol: %u", bcs->proto2);
+ dev_err(at_state->cs->dev, "%s: invalid protocol: %u\n",
+ __func__, bcs->proto2);
return -EINVAL;
}
@@ -436,13 +440,15 @@ int gigaset_isdn_setup_accept(struct at_state_t *at_state)
bcs->commands[i] = NULL;
if (length[i] &&
!(bcs->commands[i] = kmalloc(length[i], GFP_ATOMIC))) {
- err("out of memory");
+ dev_err(at_state->cs->dev, "out of memory\n");
return -ENOMEM;
}
}
- snprintf(bcs->commands[AT_PROTO], length[AT_PROTO], "^SBPR=%u\r", proto);
- snprintf(bcs->commands[AT_ISO ], length[AT_ISO ], "^SISO=%u\r", (unsigned) bcs->channel + 1);
+ snprintf(bcs->commands[AT_PROTO], length[AT_PROTO],
+ "^SBPR=%u\r", proto);
+ snprintf(bcs->commands[AT_ISO ], length[AT_ISO ],
+ "^SISO=%u\r", (unsigned) bcs->channel + 1);
return 0;
}
@@ -473,7 +479,7 @@ int gigaset_isdn_icall(struct at_state_t *at_state)
response.parm.setup.si1 = 1;
response.parm.setup.si2 = 2;
} else {
- warn("RING ignored - unsupported BC %s",
+ dev_warn(cs->dev, "RING ignored - unsupported BC %s\n",
at_state->str_var[STR_ZBC]);
return ICALL_IGNORE;
}
@@ -491,18 +497,17 @@ int gigaset_isdn_icall(struct at_state_t *at_state)
response.parm.setup.eazmsn[0] = 0;
if (!bcs) {
- notice("no channel for incoming call");
- dbg(DEBUG_CMD, "Sending ICALLW");
+ dev_notice(cs->dev, "no channel for incoming call\n");
response.command = ISDN_STAT_ICALLW;
response.arg = 0; //FIXME
} else {
- dbg(DEBUG_CMD, "Sending ICALL");
+ gig_dbg(DEBUG_CMD, "Sending ICALL");
response.command = ISDN_STAT_ICALL;
response.arg = bcs->channel; //FIXME
}
response.driver = cs->myid;
retval = cs->iif.statcallb(&response);
- dbg(DEBUG_CMD, "Response: %d", retval);
+ gig_dbg(DEBUG_CMD, "Response: %d", retval);
switch (retval) {
case 0: /* no takers */
return ICALL_IGNORE;
@@ -512,7 +517,8 @@ int gigaset_isdn_icall(struct at_state_t *at_state)
case 2: /* reject */
return ICALL_REJECT;
case 3: /* incomplete */
- warn("LL requested unsupported feature: Incomplete Number");
+ dev_warn(cs->dev,
+ "LL requested unsupported feature: Incomplete Number\n");
return ICALL_IGNORE;
case 4: /* proceeding */
/* Gigaset will send ALERTING anyway.
@@ -520,10 +526,11 @@ int gigaset_isdn_icall(struct at_state_t *at_state)
*/
return ICALL_ACCEPT;
case 5: /* deflect */
- warn("LL requested unsupported feature: Call Deflection");
+ dev_warn(cs->dev,
+ "LL requested unsupported feature: Call Deflection\n");
return ICALL_IGNORE;
default:
- err("LL error %d on ICALL", retval);
+ dev_err(cs->dev, "LL error %d on ICALL\n", retval);
return ICALL_IGNORE;
}
}
@@ -533,7 +540,7 @@ int gigaset_register_to_LL(struct cardstate *cs, const char *isdnid)
{
isdn_if *iif = &cs->iif;
- dbg(DEBUG_ANY, "Register driver capabilities to LL");
+ gig_dbg(DEBUG_ANY, "Register driver capabilities to LL");
//iif->id[sizeof(iif->id) - 1]=0;
//strncpy(iif->id, isdnid, sizeof(iif->id) - 1);
@@ -542,26 +549,26 @@ int gigaset_register_to_LL(struct cardstate *cs, const char *isdnid)
return -ENOMEM; //FIXME EINVAL/...??
iif->owner = THIS_MODULE;
- iif->channels = cs->channels; /* I am supporting just one channel *//* I was supporting...*/
+ iif->channels = cs->channels;
iif->maxbufsize = MAX_BUF_SIZE;
- iif->features = ISDN_FEATURE_L2_TRANS | /* Our device is very advanced, therefore */
+ iif->features = ISDN_FEATURE_L2_TRANS |
ISDN_FEATURE_L2_HDLC |
#ifdef GIG_X75
ISDN_FEATURE_L2_X75I |
#endif
ISDN_FEATURE_L3_TRANS |
ISDN_FEATURE_P_EURO;
- iif->hl_hdrlen = HW_HDR_LEN; /* Area for storing ack */
+ iif->hl_hdrlen = HW_HDR_LEN; /* Area for storing ack */
iif->command = command_from_LL;
iif->writebuf_skb = writebuf_from_LL;
- iif->writecmd = NULL; /* Don't support isdnctrl */
- iif->readstat = NULL; /* Don't support isdnctrl */
- iif->rcvcallb_skb = NULL; /* Will be set by LL */
- iif->statcallb = NULL; /* Will be set by LL */
+ iif->writecmd = NULL; /* Don't support isdnctrl */
+ iif->readstat = NULL; /* Don't support isdnctrl */
+ iif->rcvcallb_skb = NULL; /* Will be set by LL */
+ iif->statcallb = NULL; /* Will be set by LL */
if (!register_isdn(iif))
return 0;
- cs->myid = iif->channels; /* Set my device id */
+ cs->myid = iif->channels; /* Set my device id */
return 1;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.