From b5df5a5c3bf0f809d854ad7156ce26b709b533c0 Mon Sep 17 00:00:00 2001 From: Andreas Eversberg Date: Fri, 22 May 2009 11:04:48 +0000 Subject: mISDN: Fix DTMF locking bug issue DTMF digits were sent up to socket in locked state. Receive audio stream was not enabled in certain condition. Signed-off-by: Andreas Eversberg Signed-off-by: Karsten Keil Signed-off-by: David S. Miller --- drivers/isdn/mISDN/dsp.h | 2 +- drivers/isdn/mISDN/dsp_core.c | 37 ++++++++++++++++++++----------------- 2 files changed, 21 insertions(+), 18 deletions(-) (limited to 'drivers/isdn/mISDN') diff --git a/drivers/isdn/mISDN/dsp.h b/drivers/isdn/mISDN/dsp.h index 4a1c444d73ac..41c6cfdca8c8 100644 --- a/drivers/isdn/mISDN/dsp.h +++ b/drivers/isdn/mISDN/dsp.h @@ -124,7 +124,7 @@ struct dsp_dtmf { /* buffers one full dtmf frame */ u8 lastwhat, lastdigit; int count; - u8 digits[16]; /* just the dtmf result */ + u8 digits[16]; /* dtmf result */ }; diff --git a/drivers/isdn/mISDN/dsp_core.c b/drivers/isdn/mISDN/dsp_core.c index 621ea9bc7c25..6b4939854306 100644 --- a/drivers/isdn/mISDN/dsp_core.c +++ b/drivers/isdn/mISDN/dsp_core.c @@ -311,6 +311,7 @@ dsp_control_req(struct dsp *dsp, struct mISDNhead *hh, struct sk_buff *skb) /* check dtmf hardware */ dsp_dtmf_hardware(dsp); + dsp_rx_off(dsp); break; case DTMF_TONE_STOP: /* turn off DTMF */ if (dsp_debug & DEBUG_DSP_CORE) @@ -657,11 +658,10 @@ get_features(struct mISDNchannel *ch) static int dsp_function(struct mISDNchannel *ch, struct sk_buff *skb) { - struct dsp *dsp = container_of(ch, struct dsp, ch); + struct dsp *dsp = container_of(ch, struct dsp, ch); struct mISDNhead *hh; int ret = 0; - u8 *digits; - int cont; + u8 *digits = NULL; u_long flags; hh = mISDN_HEAD_P(skb); @@ -716,40 +716,43 @@ dsp_function(struct mISDNchannel *ch, struct sk_buff *skb) /* change volume if requested */ if (dsp->rx_volume) dsp_change_volume(skb, dsp->rx_volume); - /* check if dtmf soft decoding is turned on */ if (dsp->dtmf.software) { digits = dsp_dtmf_goertzel_decode(dsp, skb->data, skb->len, (dsp_options&DSP_OPT_ULAW)?1:0); + } + /* we need to process receive data if software */ + if (dsp->pcm_slot_tx < 0 && dsp->pcm_slot_rx < 0) { + /* process data from card at cmx */ + dsp_cmx_receive(dsp, skb); + } + + spin_unlock_irqrestore(&dsp_lock, flags); + + /* send dtmf result, if any */ + if (digits) { while (*digits) { + int k; struct sk_buff *nskb; if (dsp_debug & DEBUG_DSP_DTMF) printk(KERN_DEBUG "%s: digit" "(%c) to layer %s\n", __func__, *digits, dsp->name); - cont = DTMF_TONE_VAL | *digits; + k = *digits | DTMF_TONE_VAL; nskb = _alloc_mISDN_skb(PH_CONTROL_IND, - MISDN_ID_ANY, sizeof(int), &cont, - GFP_ATOMIC); + MISDN_ID_ANY, sizeof(int), &k, + GFP_ATOMIC); if (nskb) { if (dsp->up) { if (dsp->up->send( dsp->up, nskb)) - dev_kfree_skb(nskb); + dev_kfree_skb(nskb); } else dev_kfree_skb(nskb); } digits++; } } - /* we need to process receive data if software */ - if (dsp->pcm_slot_tx < 0 && dsp->pcm_slot_rx < 0) { - /* process data from card at cmx */ - dsp_cmx_receive(dsp, skb); - } - - spin_unlock_irqrestore(&dsp_lock, flags); - if (dsp->rx_disabled) { /* if receive is not allowed */ break; @@ -789,7 +792,7 @@ dsp_function(struct mISDNchannel *ch, struct sk_buff *skb) if (dsp->up) { if (dsp->up->send( dsp->up, nskb)) - dev_kfree_skb(nskb); + dev_kfree_skb(nskb); } else dev_kfree_skb(nskb); } -- cgit v1.2.1