/*
* send control information to the channel (dsp-module)
*/
-static void ph_control(unsigned long handle, unsigned long c1, unsigned long c2, char *trace_name, int trace_value)
+static void ph_control(int sock, unsigned int c1, unsigned int c2, char *trace_name, int trace_value, int b_mode)
{
unsigned char buffer[MISDN_HEADER_LEN+sizeof(int)+sizeof(int)];
struct mISDNhead *ctrl = (struct mISDNhead *)buffer;
- unsigned long *d = (unsigned long *)(buffer+MISDN_HEADER_LEN);
+ unsigned int *d = (unsigned int *)(buffer+MISDN_HEADER_LEN);
int ret;
- CDEBUG(NULL, NULL, "Sending PH_CONTROL %d,%d\n", c1, c2);
+ if (b_mode != 0 && b_mode != 2)
+ return;
+
+ CDEBUG(NULL, NULL, "Sending PH_CONTROL %s %x,%x\n", trace_name, c1, c2);
ctrl->prim = PH_CONTROL_REQ;
ctrl->id = 0;
*d++ = c1;
*d++ = c2;
- ret = sendto(handle, buffer, MISDN_HEADER_LEN+sizeof(int)*2, 0, NULL, 0);
+ ret = sendto(sock, buffer, MISDN_HEADER_LEN+sizeof(int)*2, 0, NULL, 0);
if (ret < 0)
- CERROR(NULL, NULL, "Failed to send to socket %d\n", handle);
-#if 0
- chan_trace_header(mISDNport, isdnport, "BCHANNEL control", DIRECTION_OUT);
- if (c1 == CMX_CONF_JOIN)
- add_trace(trace_name, NULL, "0x%08x", trace_value);
- else
- add_trace(trace_name, NULL, "%d", trace_value);
- end_trace();
-#endif
+ CERROR(NULL, NULL, "Failed to send to socket %d\n", sock);
}
-static void ph_control_block(unsigned long handle, unsigned long c1, void *c2, int c2_len, char *trace_name, int trace_value)
+static void ph_control_block(int sock, unsigned int c1, void *c2, int c2_len, char *trace_name, int trace_value, int b_mode)
{
unsigned char buffer[MISDN_HEADER_LEN+sizeof(int)+c2_len];
struct mISDNhead *ctrl = (struct mISDNhead *)buffer;
- unsigned long *d = (unsigned long *)(buffer+MISDN_HEADER_LEN);
+ unsigned int *d = (unsigned int *)(buffer+MISDN_HEADER_LEN);
int ret;
- CDEBUG(NULL, NULL, "Sending PH_CONTROL (block) %d\n", c1);
+ if (b_mode != 0 && b_mode != 2)
+ return;
+
+ CDEBUG(NULL, NULL, "Sending PH_CONTROL (block) %s %x\n", trace_name, c1);
ctrl->prim = PH_CONTROL_REQ;
ctrl->id = 0;
*d++ = c1;
memcpy(d, c2, c2_len);
- ret = sendto(handle, buffer, MISDN_HEADER_LEN+sizeof(int)+c2_len, 0, NULL, 0);
+ ret = sendto(sock, buffer, MISDN_HEADER_LEN+sizeof(int)+c2_len, 0, NULL, 0);
if (ret < 0)
- CERROR(NULL, NULL, "Failed to send to socket %d\n", handle);
-#if 0
- chan_trace_header(mISDNport, isdnport, "BCHANNEL control", DIRECTION_OUT);
- add_trace(trace_name, NULL, "%d", trace_value);
- end_trace();
-#endif
+ CERROR(NULL, NULL, "Failed to send to socket %d\n", sock);
}
/*
* create stack
*/
-int bchannel_create(struct bchannel *bchannel)
+int bchannel_create(struct bchannel *bchannel, int mode)
{
int ret;
- unsigned long on = 1;
+ unsigned int on = 1;
struct sockaddr_mISDN addr;
- if (bchannel->b_sock)
+ if (bchannel->b_sock > -1)
{
CERROR(NULL, NULL, "Socket already created for handle 0x%x\n", bchannel->handle);
return(0);
}
/* open socket */
- bchannel->b_sock = socket(PF_ISDN, SOCK_DGRAM, ISDN_P_B_L2DSP);
+ bchannel->b_mode = mode;
+ switch(bchannel->b_mode)
+ {
+ case 0:
+ bchannel->b_sock = socket(PF_ISDN, SOCK_DGRAM, ISDN_P_B_L2DSP);
+ break;
+ case 1:
+ bchannel->b_sock = socket(PF_ISDN, SOCK_DGRAM, ISDN_P_B_RAW);
+ break;
+ case 2:
+ bchannel->b_sock = socket(PF_ISDN, SOCK_DGRAM, ISDN_P_B_L2DSPHDLC);
+ break;
+ case 3:
+ bchannel->b_sock = socket(PF_ISDN, SOCK_DGRAM, ISDN_P_B_HDLC);
+ break;
+ }
if (bchannel->b_sock < 0)
{
CERROR(NULL, NULL, "Failed to open bchannel-socket for handle 0x%x with mISDN-DSP layer. Did you load mISDNdsp.ko?\n", bchannel->handle);
CERROR(NULL, NULL, "Failed to set bchannel-socket handle 0x%x into nonblocking IO\n", bchannel->handle);
close(bchannel->b_sock);
bchannel->b_sock = -1;
- bchannel->handle = 0;
return(0);
}
/* bind socket to bchannel */
addr.family = AF_ISDN;
addr.dev = (bchannel->handle>>8)-1;
- addr.channel = bchannel->handle && 0xff;
+ addr.channel = bchannel->handle & 0xff;
ret = bind(bchannel->b_sock, (struct sockaddr *)&addr, sizeof(addr));
if (ret < 0)
{
- CERROR(NULL, NULL, "Failed to bind bchannel-socket for handle 0x%x with mISDN-DSP layer. Did you load mISDNdsp.ko?\n", bchannel->handle);
+ CERROR(NULL, NULL, "Failed to bind bchannel-socket for handle 0x%x with mISDN-DSP layer. (port %d, channel %d) Did you load mISDNdsp.ko?\n", bchannel->handle, addr.dev + 1, addr.channel);
close(bchannel->b_sock);
bchannel->b_sock = -1;
return(0);
}
-
-#if 0
- chan_trace_header(mISDNport, mISDNport->b_port[i], "BCHANNEL create socket", DIRECTION_OUT);
- add_trace("channel", NULL, "%d", i+1+(i>=15));
- add_trace("socket", NULL, "%d", mISDNport->b_socket[i]);
- end_trace();
-#endif
return(1);
}
/* activate bchannel */
CDEBUG(NULL, NULL, "%sActivating B-channel.\n", activate?"":"De-");
- act.prim = (activate)?DL_ESTABLISH_REQ:DL_RELEASE_REQ;
+ switch(bchannel->b_mode)
+ {
+ case 0:
+ case 2:
+ act.prim = (activate)?DL_ESTABLISH_REQ:DL_RELEASE_REQ;
+ break;
+ case 1:
+ case 3:
+ act.prim = (activate)?PH_ACTIVATE_REQ:PH_DEACTIVATE_REQ;
+ break;
+ }
act.id = 0;
ret = sendto(bchannel->b_sock, &act, MISDN_HEADER_LEN, 0, NULL, 0);
if (ret < 0)
CERROR(NULL, NULL, "Failed to send to socket %d\n", bchannel->b_sock);
bchannel->b_state = (activate)?BSTATE_ACTIVATING:BSTATE_DEACTIVATING;
-#if 0
- /* trace */
- chan_trace_header(mISDNport, mISDNport->b_port[i], activate?(char*)"BCHANNEL activate":(char*)"BCHANNEL deactivate", DIRECTION_OUT);
- add_trace("channel", NULL, "%d", i+1+(i>=15));
- end_trace();
-#endif
+ bchannel->rebuffer_usage = 0;
}
*/
static void bchannel_activated(struct bchannel *bchannel)
{
- int handle;
+ int sock;
- handle = bchannel->b_sock;
+ sock = bchannel->b_sock;
/* set dsp features */
if (bchannel->b_txdata)
- ph_control(handle, (bchannel->b_txdata)?DSP_TXDATA_ON:DSP_TXDATA_OFF, 0, "DSP-TXDATA", bchannel->b_txdata);
+ ph_control(sock, (bchannel->b_txdata)?DSP_TXDATA_ON:DSP_TXDATA_OFF, 0, "DSP-TXDATA", bchannel->b_txdata, bchannel->b_mode);
if (bchannel->b_delay)
- ph_control(handle, DSP_DELAY, bchannel->b_delay, "DSP-DELAY", bchannel->b_delay);
+ ph_control(sock, DSP_DELAY, bchannel->b_delay, "DSP-DELAY", bchannel->b_delay, bchannel->b_mode);
if (bchannel->b_tx_dejitter)
- ph_control(handle, (bchannel->b_tx_dejitter)?DSP_TX_DEJITTER:DSP_TX_DEJ_OFF, 0, "DSP-TX_DEJITTER", bchannel->b_tx_dejitter);
+ ph_control(sock, (bchannel->b_tx_dejitter)?DSP_TX_DEJITTER:DSP_TX_DEJ_OFF, 0, "DSP-TX_DEJITTER", bchannel->b_tx_dejitter, bchannel->b_mode);
if (bchannel->b_tx_gain)
- ph_control(handle, DSP_VOL_CHANGE_TX, bchannel->b_tx_gain, "DSP-TX_GAIN", bchannel->b_tx_gain);
+ ph_control(sock, DSP_VOL_CHANGE_TX, bchannel->b_tx_gain, "DSP-TX_GAIN", bchannel->b_tx_gain, bchannel->b_mode);
if (bchannel->b_rx_gain)
- ph_control(handle, DSP_VOL_CHANGE_RX, bchannel->b_rx_gain, "DSP-RX_GAIN", bchannel->b_rx_gain);
+ ph_control(sock, DSP_VOL_CHANGE_RX, bchannel->b_rx_gain, "DSP-RX_GAIN", bchannel->b_rx_gain, bchannel->b_mode);
if (bchannel->b_pipeline[0])
- ph_control_block(handle, DSP_PIPELINE_CFG, bchannel->b_pipeline, strlen(bchannel->b_pipeline)+1, "DSP-PIPELINE", 0);
+ ph_control_block(sock, DSP_PIPELINE_CFG, bchannel->b_pipeline, strlen(bchannel->b_pipeline)+1, "DSP-PIPELINE", 0, bchannel->b_mode);
if (bchannel->b_conf)
- ph_control(handle, DSP_CONF_JOIN, bchannel->b_conf, "DSP-CONF", bchannel->b_conf);
+ ph_control(sock, DSP_CONF_JOIN, bchannel->b_conf, "DSP-CONF", bchannel->b_conf, bchannel->b_mode);
if (bchannel->b_echo)
- ph_control(handle, DSP_ECHO_ON, 0, "DSP-ECHO", 1);
+ ph_control(sock, DSP_ECHO_ON, 0, "DSP-ECHO", 1, bchannel->b_mode);
if (bchannel->b_tone)
- ph_control(handle, DSP_TONE_PATT_ON, bchannel->b_tone, "DSP-TONE", bchannel->b_tone);
+ ph_control(sock, DSP_TONE_PATT_ON, bchannel->b_tone, "DSP-TONE", bchannel->b_tone, bchannel->b_mode);
if (bchannel->b_rxoff)
- ph_control(handle, DSP_RECEIVE_OFF, 0, "DSP-RXOFF", 1);
+ ph_control(sock, DSP_RECEIVE_OFF, 0, "DSP-RXOFF", 1, bchannel->b_mode);
// if (bchannel->b_txmix)
-// ph_control(handle, DSP_MIX_ON, 0, "DSP-MIX", 1);
+// ph_control(sock, DSP_MIX_ON, 0, "DSP-MIX", 1, bchannel->b_mode);
if (bchannel->b_dtmf)
- ph_control(handle, DTMF_TONE_START, 0, "DSP-DTMF", 1);
- if (bchannel->b_crypt_len)
- ph_control_block(handle, DSP_BF_ENABLE_KEY, bchannel->b_crypt_key, bchannel->b_crypt_len, "DSP-CRYPT", bchannel->b_crypt_len);
+ ph_control(sock, DTMF_TONE_START, 0, "DSP-DTMF", 1, bchannel->b_mode);
+ if (bchannel->b_bf_len)
+ ph_control_block(sock, DSP_BF_ENABLE_KEY, bchannel->b_bf_key, bchannel->b_bf_len, "DSP-CRYPT", bchannel->b_bf_len, bchannel->b_mode);
if (bchannel->b_conf)
- ph_control(handle, DSP_CONF_JOIN, bchannel->b_conf, "DSP-CONF", bchannel->b_conf);
+ ph_control(sock, DSP_CONF_JOIN, bchannel->b_conf, "DSP-CONF", bchannel->b_conf, bchannel->b_mode);
bchannel->b_state = BSTATE_ACTIVE;
}
/*
* destroy stack
*/
-static void bchannel_destroy(struct bchannel *bchannel)
+void bchannel_destroy(struct bchannel *bchannel)
{
-#if 0
- chan_trace_header(mISDNport, mISDNport->b_port[i], "BCHANNEL remove socket", DIRECTION_OUT);
- add_trace("channel", NULL, "%d", i+1+(i>=15));
- add_trace("socket", NULL, "%d", mISDNport->b_socket[i]);
- end_trace();
-#endif
if (bchannel->b_sock > -1)
{
close(bchannel->b_sock);
bchannel->b_sock = -1;
+ bchannel->rebuffer_usage = 0;
}
bchannel->b_state = BSTATE_IDLE;
}
/*
* whenever we get audio data from bchannel, we process it here
*/
-static void bchannel_receive(struct bchannel *bchannel, unsigned long prim, unsigned long dinfo, unsigned char *data, int len)
+static void bchannel_receive(struct bchannel *bchannel, unsigned char *buffer, int len)
{
- unsigned long cont = *((unsigned long *)data);
-// unsigned char *data_temp;
-// unsigned long length_temp;
-// unsigned char *p;
-// int l;
+ struct mISDNhead *hh = (struct mISDNhead *)buffer;
+ unsigned char *data = buffer + MISDN_HEADER_LEN;
+ unsigned int cont = *((unsigned int *)data);
+ struct bchannel *remote_bchannel;
+ int ret;
- if (prim == PH_CONTROL_IND)
+ if (hh->prim == PH_CONTROL_IND)
{
if (len < 4)
{
}
if ((cont&(~DTMF_TONE_MASK)) == DTMF_TONE_VAL)
{
-#if 0
- chan_trace_header(p_m_mISDNport, this, "BCHANNEL control", DIRECTION_IN);
- add_trace("DTMF", NULL, "%c", cont & DTMF_TONE_MASK);
- end_trace();
-#endif
- if (bchannel->rx_dtmf)
- bchannel->rx_dtmf(bchannel, cont & DTMF_TONE_MASK);
+ if (bchannel->call)
+ lcr_in_dtmf(bchannel->call, cont & DTMF_TONE_MASK);
return;
}
switch(cont)
{
case DSP_BF_REJECT:
-#if 0
- chan_trace_header(p_m_mISDNport, this, "BCHANNEL control", DIRECTION_IN);
- add_trace("DSP-CRYPT", NULL, "error");
- end_trace();
-#endif
+ CERROR(NULL, NULL, "Blowfish crypt rejected.\n");
break;
case DSP_BF_ACCEPT:
-#if 0
- chan_trace_header(p_m_mISDNport, this, "BCHANNEL control", DIRECTION_IN);
- add_trace("DSP-CRYPT", NULL, "ok");
- end_trace();
-#endif
+ CDEBUG(NULL, NULL, "Blowfish crypt enabled.\n");
break;
default:
-#if 0
- chan_trace_header(p_m_mISDNport, this, "BCHANNEL control", DIRECTION_IN);
- add_trace("unknown", NULL, "0x%x", cont);
- end_trace();
-#else
- ;
-#endif
+ CDEBUG(NULL, NULL, "Unhandled bchannel control 0x%x.\n", cont);
}
return;
}
- if (prim == PH_DATA_REQ)
+ if (hh->prim == PH_DATA_REQ)
{
if (!bchannel->b_txdata)
{
}
return;
}
- if (prim != PH_DATA_IND && prim != DL_DATA_IND)
+ if (hh->prim != PH_DATA_IND && hh->prim != DL_DATA_IND)
{
- CERROR(NULL, NULL, "Bchannel received unknown primitve: 0x%lx\n", prim);
+ CERROR(NULL, NULL, "Bchannel received unknown primitve: 0x%lx\n", hh->prim);
return;
}
+ /* if call is bridged and in non-dsp mode */
+ if (bchannel->b_conf
+ && (bchannel->b_mode == 1 || bchannel->b_mode == 3)
+ && bchannel->call
+ && bchannel->call->bridge_call
+ && bchannel->call->bridge_call->bchannel)
+ {
+ remote_bchannel = bchannel->call->bridge_call->bchannel;
+ if (remote_bchannel->b_mode == 1 || remote_bchannel->b_mode == 3)
+ {
+ hh->prim = PH_DATA_REQ;
+ ret = sendto(remote_bchannel->b_sock, buffer, MISDN_HEADER_LEN+len, 0, NULL, 0);
+ if (ret < 0)
+ CERROR(NULL, NULL, "Failed to send to socket %d\n", bchannel->b_sock);
+ return;
+ }
+ }
/* calls will not process any audio data unless
* the call is connected OR interface features audio during call setup.
*/
/* return, because we have no audio from port */
return;
}
- if (bchannel->call->pipe[1] > -1)
+
+ if (bchannel->call->pipe[1] < 0)
{
+ /* nobody there */
+ return;
+ }
+
+
+ if (bchannel->call->rebuffer) {
+ int u = bchannel->rebuffer_usage;
+ unsigned char * b = bchannel->rebuffer;
+ unsigned char * d = data;
+ int l = len;
+ int fd = bchannel->call->pipe[1];
+
+ if (u > 0) {
+ if (u + l >= 160) {
+ memcpy(b + u, d, 160 - u);
+ d += 160 - u;
+ l -= 160 - u;
+ u = 0;
+ if (write(fd, b, 160) < 0) {
+ goto errout;
+ }
+ } else {
+ memcpy(b + u, d, l);
+ u += l;
+ l = 0;
+ }
+ }
+
+ while (l >= 160) {
+ if (write(fd, d, 160) < 0) {
+ goto errout;
+ }
+ d += 160;
+ l -= 160;
+ }
+
+ if (l > 0) {
+ memcpy(b, d, l);
+ }
+ bchannel->rebuffer_usage = u + l;
+ } else {
len = write(bchannel->call->pipe[1], data, len);
if (len < 0)
{
- close(bchannel->call->pipe[1]);
- bchannel->call->pipe[1] = -1;
- CDEBUG(NULL, NULL, "broken pipe on bchannel pipe\n");
- return;
+ goto errout;
}
}
+
+ return;
+ errout:
+ close(bchannel->call->pipe[1]);
+ bchannel->call->pipe[1] = -1;
+ bchannel->rebuffer_usage = 0;
+ CDEBUG(NULL, NULL, "broken pipe on bchannel pipe\n");
}
return;
for (i = 0; i < len; i++)
*p++ = flip_bits[*data++];
- frm->prim = DL_DATA_REQ;
+ switch(bchannel->b_mode)
+ {
+ case 0:
+ case 2:
+ frm->prim = DL_DATA_REQ;
+ break;
+ case 1:
+ case 3:
+ frm->prim = PH_DATA_REQ;
+ break;
+ }
frm->id = 0;
ret = sendto(bchannel->b_sock, buff, MISDN_HEADER_LEN+len, 0, NULL, 0);
if (ret < 0)
*/
void bchannel_join(struct bchannel *bchannel, unsigned short id)
{
- int handle;
+ int sock;
- handle = bchannel->b_sock;
+ sock = bchannel->b_sock;
if (id) {
bchannel->b_conf = (id<<16) + bchannel_pid;
bchannel->b_rxoff = 1;
}
if (bchannel->b_state == BSTATE_ACTIVE)
{
- ph_control(handle, DSP_RECEIVE_OFF, bchannel->b_rxoff, "DSP-RX_OFF", bchannel->b_conf);
- ph_control(handle, DSP_CONF_JOIN, bchannel->b_conf, "DSP-CONF", bchannel->b_conf);
+ ph_control(sock, DSP_RECEIVE_OFF, bchannel->b_rxoff, "DSP-RX_OFF", bchannel->b_conf, bchannel->b_mode);
+ ph_control(sock, DSP_CONF_JOIN, bchannel->b_conf, "DSP-CONF", bchannel->b_conf, bchannel->b_mode);
}
}
/*
+ * dtmf bchannel
+ */
+void bchannel_dtmf(struct bchannel *bchannel, int on)
+{
+ int sock;
+
+ sock = bchannel->b_sock;
+ bchannel->b_dtmf = 1;
+ if (bchannel->b_state == BSTATE_ACTIVE)
+ ph_control(sock, on?DTMF_TONE_START:DTMF_TONE_STOP, 0, "DSP-DTMF", 1, bchannel->b_mode);
+}
+
+
+/*
+ * blowfish bchannel
+ */
+void bchannel_blowfish(struct bchannel *bchannel, unsigned char *key, int len)
+{
+ int sock;
+
+ sock = bchannel->b_sock;
+ memcpy(bchannel->b_bf_key, key, len);
+ bchannel->b_bf_len = len;
+ if (bchannel->b_state == BSTATE_ACTIVE)
+ ph_control_block(sock, DSP_BF_ENABLE_KEY, bchannel->b_bf_key, bchannel->b_bf_len, "DSP-CRYPT", bchannel->b_bf_len, bchannel->b_mode);
+}
+
+
+/*
+ * pipeline bchannel
+ */
+void bchannel_pipeline(struct bchannel *bchannel, char *pipeline)
+{
+ int sock;
+
+ sock = bchannel->b_sock;
+ strncpy(bchannel->b_pipeline, pipeline, sizeof(bchannel->b_pipeline)-1);
+ if (bchannel->b_state == BSTATE_ACTIVE)
+ ph_control_block(sock, DSP_PIPELINE_CFG, bchannel->b_pipeline, strlen(bchannel->b_pipeline)+1, "DSP-PIPELINE", 0, bchannel->b_mode);
+}
+
+
+/*
+ * gain bchannel
+ */
+void bchannel_gain(struct bchannel *bchannel, int gain, int tx)
+{
+ int sock;
+
+ sock = bchannel->b_sock;
+ if (tx)
+ bchannel->b_tx_gain = gain;
+ else
+ bchannel->b_rx_gain = gain;
+ if (bchannel->b_state == BSTATE_ACTIVE)
+ ph_control(sock, (tx)?DSP_VOL_CHANGE_TX:DSP_VOL_CHANGE_RX, gain, (tx)?"DSP-TX_GAIN":"DSP-RX_GAIN", gain, bchannel->b_mode);
+}
+
+
+/*
* main loop for processing messages from mISDN
*/
int bchannel_handle(void)
case PH_DATA_REQ:
case DL_DATA_IND:
case PH_CONTROL_IND:
- bchannel_receive(bchannel, hh->prim, hh->id, buffer+MISDN_HEADER_LEN, ret-MISDN_HEADER_LEN);
+ bchannel_receive(bchannel, buffer, ret-MISDN_HEADER_LEN);
break;
case PH_ACTIVATE_IND:
* bchannel channel handling
*/
struct bchannel *bchannel_first = NULL;
-struct bchannel *find_bchannel_handle(unsigned long handle)
+struct bchannel *find_bchannel_handle(unsigned int handle)
{
struct bchannel *bchannel = bchannel_first;
}
#if 0
-struct bchannel *find_bchannel_ref(unsigned long ref)
+struct bchannel *find_bchannel_ref(unsigned int ref)
{
struct bchannel *bchannel = bchannel_first;
}
#endif
-struct bchannel *alloc_bchannel(unsigned long handle)
+struct bchannel *alloc_bchannel(unsigned int handle)
{
struct bchannel **bchannelp = &bchannel_first;
return(NULL);
(*bchannelp)->handle = handle;
(*bchannelp)->b_state = BSTATE_IDLE;
+ (*bchannelp)->b_sock = -1;
return(*bchannelp);
}