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wct4xxp: Moving the transmit short detection behind debug module param.

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This needs some more testing before it's on by default.  If the card is
otherwise functioning, these messages may be confusing to the user.  If
the card is not functioning, the driver can be reloaded with debug to
check for this condition.

Signed-off-by: Shaun Ruffell <sruffell@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9205 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This commit is contained in:
Shaun Ruffell
2010-08-27 21:59:27 +00:00
commit bf3fe05dfb
265 changed files with 190229 additions and 0 deletions
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4
include/dahdi/Kbuild Normal file
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header-y += kernel.h
header-y += user.h
header-y += wctdm_user.h
header-y += version.h

187
include/dahdi/dahdi_config.h Normal file
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/*
* DAHDI configuration options
*
*/
/*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2 as published by the
* Free Software Foundation. See the LICENSE file included with
* this program for more details.
*/
#ifndef _DAHDI_CONFIG_H
#define _DAHDI_CONFIG_H
#ifdef __KERNEL__
#include <linux/version.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18)
#include <linux/config.h>
#endif
#endif
/* DAHDI compile time options */
/*
* Uncomment if you have a European phone, or any other phone with a
* short flash time.
* This will stop the flash being mis-detected as a pulse dial "1" on
* phones with short flashes
*/
/* #define SHORT_FLASH_TIME */
/*
* Uncomment to disable calibration and/or DC/DC converter tests
* (not generally recommended)
*/
/* #define NO_CALIBRATION */
/* #define NO_DCDC */
/*
* Boost ring voltage (Higher ring voltage, takes more power)
* Note: this only affects the wcfxsusb and wcusb drivers; all other
* drivers have a 'boostringer' module parameter.
*/
/* #define BOOST_RINGER */
/*
* Define CONFIG_CALC_XLAW if you have a small number of channels and/or
* a small level 2 cache, to optimize for few channels
*
*/
/* #define CONFIG_CALC_XLAW */
/*
* Define if you want MMX optimizations in DAHDI
*
* Note: CONFIG_DAHDI_MMX is generally incompatible with AMD
* processors and can cause system instability!
*
*/
/* #define CONFIG_DAHDI_MMX */
/* We now use the linux kernel config to detect which options to use */
/* You can still override them below */
#if defined(CONFIG_HDLC) || defined(CONFIG_HDLC_MODULE)
#define DAHDI_HDLC_TYPE_TRANS
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,3)
#define HDLC_MAINTAINERS_ARE_MORE_STUPID_THAN_I_THOUGHT
#endif
#endif
#ifdef CONFIG_PPP
#define CONFIG_DAHDI_PPP
#endif
/*
* Uncomment CONFIG_DAHDI_NET to enable SyncPPP, CiscoHDLC, and Frame Relay
* support.
*/
/* #define CONFIG_DAHDI_NET */
/*
* Uncomment CONFIG_OLD_HDLC_API if your are compiling with CONFIG_DAHDI_NET
* defined and you are using the old kernel HDLC interface (or if you get
* an error about ETH_P_HDLC while compiling).
*/
/* #define CONFIG_OLD_HDLC_API */
/*
* Uncomment for Generic PPP support (i.e. ZapRAS)
*/
/* #define CONFIG_DAHDI_PPP */
/*
* Uncomment to enable "watchdog" to monitor if interfaces
* stop taking interrupts or otherwise misbehave
*/
/* #define CONFIG_DAHDI_WATCHDOG */
/*
* Uncomment the following to include extra debugging output.
*/
/* #define CONFIG_DAHDI_DEBUG */
/*
* Uncomment for Non-standard FXS groundstart start state (A=Low, B=Low)
* particularly for CAC channel bank groundstart FXO ports.
*/
/* #define CONFIG_CAC_GROUNDSTART */
/*
* Define CONFIG_DAHDI_CORE_TIMER if you would like dahdi to always provide a
* timing source regardless of which spans / drivers are configured.
*/
#define CONFIG_DAHDI_CORE_TIMER
/*
* Define CONFIG_DAHDI_NO_ECHOCAN_DISABLE to prevent the 2100Hz tone detector
* from disabling any installed software echocan.
*
*/
/* #define CONFIG_DAHDI_NO_ECHOCAN_DISABLE */
/*
* Uncomment if you happen have an early TDM400P Rev H which
* sometimes forgets its PCI ID to have wcfxs match essentially all
* subvendor ID's
*/
/* #define TDM_REVH_MATCHALL */
/*
* Uncomment the following if you want to support E&M trunks being
* able to "flash" after going off-hook (dont ask why, just nod :-) ).
*
* NOTE: *DO NOT* Enable "EMFLASH" and "EMPULSE" at the same time!!
*
*/
/* #define EMFLASH */
/*
* Uncomment the following if you want to support E&M trunks being
* able to recognize Dial Pulse digits. This can validly be enabled
* so that either Dial Pulse or DTMF/MF tones will be recognized, but
* the drawback is that the ONHOOK will take an extra {rxwinktime}
* to be recognized.
*
* NOTE: *DO NOT* Enable "EMFLASH" and "EMPULSE" at the same time!!
*
*/
/* #define EMPULSE */
/*
* Comment out the following if you dont want events to indicate the
* beginning of an incoming ring. Most non-Asterisk applications will
* want this commented out.
*/
#define RINGBEGIN
/*
* Uncomment the following if you need to support FXS Flash events.
* Most applications will want this commented out.
*/
/* #define FXSFLASH */
/*
* Enable sync_tick() calls. Allows low-level drivers to synchronize
* their internal clocks to the DAHDI master clock.
*/
#define DAHDI_SYNC_TICK
/*
* Skip processing PCM if low-level driver won't use it anyway
*/
/* #define OPTIMIZE_CHANMUTE */
/*
* Pass DAHDI_AUDIOMODE to channel driver as well
*/
/* #define DAHDI_AUDIO_NOTIFY */
#endif

533
include/dahdi/fasthdlc.h Normal file
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/*
* Mark's Mythical Table-based raw HDLC implementation
*
* This is designed to be a very fast, but memory efficient
* implementation of standard HDLC protocol.
*
* This table based HDLC technology is PATENT PENDING, but will always be
* remain freely distributable under the terms of the GPL version 2.
*
* For non-GPL licensing, please contact Mark Spencer at
* the below e-mail address.
*
* Copyright (C) 2001-2008, Digium, Inc.
*
* Written by Mark Spencer <markster@digium.com>
*
*/
/*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2 as published by the
* Free Software Foundation. See the LICENSE file included with
* this program for more details.
*/
#ifndef _FASTHDLC_H
#define _FASTHDLC_H
enum fasthdlc_mode {
FASTHDLC_MODE_64 = 0,
FASTHDLC_MODE_56,
FASTHDLC_MODE_16,
};
struct fasthdlc_state {
int state; /* What state we are in */
unsigned int data; /* Our current data queue */
int bits; /* Number of bits in our data queue */
int ones; /* Number of ones */
enum fasthdlc_mode mode;
unsigned int minbits;
};
#ifdef FAST_HDLC_NEED_TABLES
#define RETURN_COMPLETE_FLAG (0x1000)
#define RETURN_DISCARD_FLAG (0x2000)
#define RETURN_EMPTY_FLAG (0x4000)
/* Unlike most HDLC implementations, we define only two states,
when we are in a valid frame, and when we are searching for
a frame header */
#define FRAME_SEARCH 0
#define PROCESS_FRAME 1
/*
HDLC Search State table -- Look for a frame header. The return value
of this table is as follows:
|---8---|---7---|---6---|---5---|---4---|---3---|---2---|---1---|
| Z E R O E S | Next | Bits Consumed |
|-------|-------|-------|-------|-------|-------|-------|-------|
The indexes for this table are the state (0 or 1) and the next 8
bits of the stream.
Note that this table is only used for state 0 and 1.
The user should discard the top "bits consumed" bits of data before
the next call. "Next state" represents the actual next state for
decoding.
*/
static unsigned char hdlc_search[256];
/*
HDLC Data Table
The indexes to this table are the number of one's we've seen so far (0-5) and
the next 10 bits of input (which is enough to guarantee us that we
will retrieve at least one byte of data (or frame or whatever).
The format for the return value is:
Bits 15: Status (1=Valid Data, 0=Control Frame (see bits 7-0 for type))
Bits 14-12: Number of ones in a row, so far
Bits 11-8: The number of bits consumed (0-10)
Bits 7-0: The return data (if appropriate)
The next state is simply bit #15
*/
#define CONTROL_COMPLETE 1
#define CONTROL_ABORT 2
#define STATUS_MASK (1 << 15)
#define STATUS_VALID (1 << 15)
#define STATUS_CONTROL (0 << 15)
#define STATE_MASK (1 << 15)
#define ONES_MASK (7 << 12)
#define DATA_MASK (0xff)
static unsigned short hdlc_frame[6][1024];
static unsigned int minbits[2] = { 8, 10 };
/*
Last, but not least, we have the encoder table. It takes
as its indices the number of ones so far and a byte of data
and returns an int composed of the following fields:
Bots 31-22: Actual Data
Bits 21-16: Unused
Bits 15-8: Number of ones
Bits 3-0: Number of bits of output (13-4) to use
Of course we could optimize by reducing to two tables, but I don't
really think it's worth the trouble at this point.
*/
static unsigned int hdlc_encode[6][256];
static inline char hdlc_search_precalc(unsigned char c)
{
int x, p=0;
/* Look for a flag. If this isn't a flag,
line us up for the next possible shot at
a flag */
/* If it's a flag, we go to state 1, and have
consumed 8 bits */
if (c == 0x7e)
return 0x10 | 8;
/* If it's an abort, we stay in the same state
and have consumed 8 bits */
if (c == 0x7f)
return 0x00 | 8;
/* If it's all 1's, we state in the same state and
have consumed 8 bits */
if (c == 0xff)
return 0x00 | 8;
/* If we get here, we must have at least one zero in us
but we're not the flag. So, start at the end (LSB) and
work our way to the top (MSB) looking for a zero. The
position of that 0 is most optimistic start of a real
frame header */
x=1;
p=7;
while(p && (c & x)) {
x <<= 1;
p--;
}
return p;
}
#ifdef DEBUG_PRECALC
static inline void hdlc_search_print(char c, char r)
{
int x=0x80;
while(x) {
printf("%s", c & x ? "1" : "0");
x >>= 1;
}
printf(" => State %d, Consume %d\n", (r & 0x10) >> 4, r & 0xf);
}
#endif
#define HFP(status, ones, bits, data) \
((status) | ((ones) << 12) | ((bits) << 8) | (data))
static inline unsigned int hdlc_frame_precalc(unsigned char x, unsigned short c)
{
/* Assume we have seen 'x' one's so far, and have read the
bottom 10 bytes of c (MSB first). Now, we HAVE to have
a byte of data or a frame or something. We are assumed
to be at the beginning of a byte of data or something */
unsigned char ones = x;
unsigned char data=0;
int bits=0;
int consumed=0;
while(bits < 8) {
data >>=1;
consumed++;
if (ones == 5) {
/* We've seen five ones */
if (c & 0x0200) {
/* Another one -- Some sort of signal frame */
if ((!(c & 0x0100)) && (bits == 6)) {
/* This is a frame terminator (10) */
return HFP(0,
0, 8, CONTROL_COMPLETE);
} else {
/* Yuck! It's something else...
Abort this entire frame, and
start looking for a good frame */
return HFP(0,
0, consumed+1, CONTROL_ABORT);
}
} else {
/* It's an inserted zero, just skip it */
ones = 0;
data <<= 1;
}
} else {
/* Add it to our bit list, LSB to
MSB */
if (c & 0x0200) {
data |= 0x80;
ones++;
} else
ones=0;
bits++;
}
c <<= 1;
}
/* Consume the extra 0 now rather than later. */
if (ones == 5) {
ones = 0;
consumed++;
}
return HFP(STATUS_VALID, ones, consumed, data);
}
#ifdef DEBUG_PRECALC
static inline void hdlc_frame_print(unsigned char x, unsigned short c, unsigned int res)
{
int z=0x0200;
char *status[] = {
"Control",
"Valid",
};
printf("%d one's then ", x);
while(z) {
printf("%s", c & z ? "1" : "0");
z >>= 1;
}
printf(" => Status %s, ", res & STATUS_MASK ? "1" : "0");
printf("Consumed: %d, ", (res & 0x0f00) >> 8);
printf("Status: %s, ", status[(res & STATUS_MASK) >> 15]);
printf("Ones: %d, ", (res & ONES_MASK) >> 12);
printf("Data: %02x\n", res & 0xff);
}
#endif
static inline unsigned int hdlc_encode_precalc(int x, unsigned char y)
{
int bits=0;
int ones=x;
unsigned short data=0;
int z;
for (z=0;z<8;z++) {
/* Zero-stuff if needed */
if (ones == 5) {
/* Stuff a zero */
data <<= 1;
ones=0;
bits++;
}
if (y & 0x01) {
/* There's a one */
data <<= 1;
data |= 0x1;
ones++;
bits++;
} else {
data <<= 1;
ones = 0;
bits++;
}
y >>= 1;
}
/* Special case -- Stuff the zero at the end if appropriate */
if (ones == 5) {
/* Stuff a zero */
data <<= 1;
ones=0;
bits++;
}
data <<= (10-bits);
return (data << 22) | (ones << 8) | (bits);
}
#ifdef DEBUG_PRECALC
static inline void hdlc_encode_print(int x, unsigned char y, unsigned int val)
{
unsigned int z;
unsigned short c;
printf("%d ones, %02x (", x, y);
z = 0x80;
while(z) {
printf("%s", y & z ? "1" : "0");
z >>= 1;
}
printf(") encoded as ");
z = 1 << 31;
for (x=0;x<(val & 0xf);x++) {
printf("%s", val & z ? "1" : "0");
z >>= 1;
}
printf(" with %d ones now, %d bits in len\n", (val & 0xf00) >> 8, val & 0xf);
}
#endif
static inline void fasthdlc_precalc(void)
{
int x;
int y;
/* First the easy part -- the searching */
for (x=0;x<256;x++) {
hdlc_search[x] = hdlc_search_precalc(x);
#ifdef DEBUG_PRECALC
hdlc_search_print(x, hdlc_search[x]);
#endif
}
/* Now the hard part -- the frame tables */
for (x=0;x<6;x++) {
/* Given the # of preceeding ones, process the next
byte of input (up to 10 actual bits) */
for (y=0;y<1024;y++) {
hdlc_frame[x][y] = hdlc_frame_precalc(x, y);
#ifdef DEBUG_PRECALC
hdlc_frame_print(x, y, hdlc_frame[x][y]);
#endif
}
}
/* Now another not-so-hard part, the encoding table */
for (x=0;x<6;x++) {
for (y=0;y<256;y++) {
hdlc_encode[x][y] = hdlc_encode_precalc(x,y);
#ifdef DEBUG_PRECALC
hdlc_encode_print(x,y,hdlc_encode[x][y]);
#endif
}
}
}
static inline void fasthdlc_init(struct fasthdlc_state *h, enum fasthdlc_mode mode)
{
/* Initializes all states appropriately */
h->mode = mode;
h->state = 0;
h->bits = 0;
h->data = 0;
h->ones = 0;
switch (mode) {
case FASTHDLC_MODE_64:
h->minbits = 8;
break;
case FASTHDLC_MODE_56:
h->minbits = 7;
break;
case FASTHDLC_MODE_16:
h->minbits = 2;
break;
}
}
static inline int fasthdlc_tx_load_nocheck(struct fasthdlc_state *h, unsigned char c)
{
unsigned int res;
res = hdlc_encode[h->ones][c];
h->ones = (res & 0xf00) >> 8;
h->data |= (res & 0xffc00000) >> h->bits;
h->bits += (res & 0xf);
return 0;
}
static inline int fasthdlc_tx_load(struct fasthdlc_state *h, unsigned char c)
{
/* Gotta have at least 10 bits left */
if (h->bits > 22)
return -1;
return fasthdlc_tx_load_nocheck(h, c);
}
static inline int fasthdlc_tx_frame_nocheck(struct fasthdlc_state *h)
{
h->ones = 0;
h->data |= ( 0x7e000000 >> h->bits);
h->bits += 8;
return 0;
}
static inline int fasthdlc_tx_frame(struct fasthdlc_state *h)
{
if (h->bits > 24)
return -1;
return fasthdlc_tx_frame_nocheck(h);
}
static inline int fasthdlc_tx_need_data(struct fasthdlc_state *h)
{
if (h->mode == FASTHDLC_MODE_56) {
if (h->bits < 7)
return 1;
} else if (h->mode == FASTHDLC_MODE_16) {
if (h->bits < 2)
return 1;
} else {
if (h->bits < 8)
return 1;
}
return 0;
}
static inline int fasthdlc_tx_run_nocheck(struct fasthdlc_state *h)
{
unsigned char b;
if (h->mode == FASTHDLC_MODE_16) {
b = h->data >> 30;
h->bits -= 2;
h->data <<= 2;
return (b & 3) << 6;
} else if (h->mode == FASTHDLC_MODE_56) {
b = h->data >> 25;
h->bits -= 7;
h->data <<= 7;
return ((b & 0x7f) << 1) | 1;
} else {
b = h->data >> 24;
h->bits -= 8;
h->data <<= 8;
return b;
}
}
static inline int fasthdlc_tx_run(struct fasthdlc_state *h)
{
if (h->bits < h->minbits)
return -1;
return fasthdlc_tx_run_nocheck(h);
}
static inline int fasthdlc_rx_load_nocheck(struct fasthdlc_state *h, unsigned char b)
{
if (h->mode == FASTHDLC_MODE_16) {
h->data |= (b >> 6) << (30-h->bits);
h->bits += 2;
} else if (h->mode == FASTHDLC_MODE_56) {
h->data |= (b >> 1) << (25-h->bits);
h->bits += 7;
} else {
/* Put the new byte in the data stream */
h->data |= b << (24-h->bits);
h->bits += 8;
}
return 0;
}
static inline int fasthdlc_rx_load(struct fasthdlc_state *h, unsigned char b)
{
/* Make sure we have enough space */
if (h->bits > 24)
return -1;
return fasthdlc_rx_load_nocheck(h, b);
}
/*
Returns a data character if available, logical OR'd with
zero or more of RETURN_COMPLETE_FLAG, RETURN_DISCARD_FLAG,
and RETURN_EMPTY_FLAG, signifying a complete frame, a
discarded frame, or there is nothing to return.
*/
static inline int fasthdlc_rx_run(struct fasthdlc_state *h)
{
unsigned short next;
int retval=RETURN_EMPTY_FLAG;
while ((h->bits >= minbits[h->state]) && (retval == RETURN_EMPTY_FLAG)) {
/* Run until we can no longer be assured that we will
have enough bits to continue */
switch(h->state) {
case FRAME_SEARCH:
/* Look for an HDLC frame, keying from
the top byte. */
next = hdlc_search[h->data >> 24];
h->bits -= next & 0x0f;
h->data <<= next & 0x0f;
h->state = next >> 4;
h->ones = 0;
break;
case PROCESS_FRAME:
/* Process as much as the next ten bits */
next = hdlc_frame[h->ones][h->data >> 22];
h->bits -= ((next & 0x0f00) >> 8);
h->data <<= ((next & 0x0f00) >> 8);
h->state = (next & STATE_MASK) >> 15;
h->ones = (next & ONES_MASK) >> 12;
switch(next & STATUS_MASK) {
case STATUS_CONTROL:
if (next & CONTROL_COMPLETE) {
/* A complete, valid frame received */
retval = (RETURN_COMPLETE_FLAG);
/* Stay in this state */
h->state = 1;
} else {
/* An abort (either out of sync of explicit) */
retval = (RETURN_DISCARD_FLAG);
}
break;
case STATUS_VALID:
retval = (next & DATA_MASK);
}
}
}
return retval;
}
#endif /* FAST_HDLC_NEED_TABLES */
#endif

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/*
* Wildcard S100P FXS Interface Driver for DAHDI Telephony interface
*
* Written by Mark Spencer <markster@digium.com>
*
* Copyright (C) 2001-2008, Digium, Inc.
*
* All rights reserved.
*
*/
/*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2 as published by the
* Free Software Foundation. See the LICENSE file included with
* this program for more details.
*/
#ifndef _WCTDM_H
#define _WCTDM_H
#include <linux/ioctl.h>
#define NUM_REGS 109
#define NUM_INDIRECT_REGS 105
struct wctdm_stats {
int tipvolt; /* TIP voltage (mV) */
int ringvolt; /* RING voltage (mV) */
int batvolt; /* VBAT voltage (mV) */
};
struct wctdm_regs {
unsigned char direct[NUM_REGS];
unsigned short indirect[NUM_INDIRECT_REGS];
};
struct wctdm_regop {
int indirect;
unsigned char reg;
unsigned short val;
};
struct wctdm_echo_coefs {
unsigned char acim;
unsigned char coef1;
unsigned char coef2;
unsigned char coef3;
unsigned char coef4;
unsigned char coef5;
unsigned char coef6;
unsigned char coef7;
unsigned char coef8;
};
#define WCTDM_GET_STATS _IOR (DAHDI_CODE, 60, struct wctdm_stats)
#define WCTDM_GET_REGS _IOR (DAHDI_CODE, 61, struct wctdm_regs)
#define WCTDM_SET_REG _IOW (DAHDI_CODE, 62, struct wctdm_regop)
#define WCTDM_SET_ECHOTUNE _IOW (DAHDI_CODE, 63, struct wctdm_echo_coefs)
#endif /* _WCTDM_H */