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Date:	Thu, 22 May 2014 08:32:22 +0200
From:	Karsten Keil <kkeil@...ux-pingi.de>
To:	Tilman Schmidt <tilman@...p.cc>, netdev@...r.kernel.org
CC:	Paul Bolle <pebolle@...cali.nl>, isdn4linux@...tserv.isdn4linux.de,
	"Keil, Karsten" <isdn@...ux-pingi.de>
Subject: Re: [PATCH 1/4] isdn/capi: move capi_info2str to capidrv.c

Am 21.05.2014 23:39, schrieb Tilman Schmidt:
> From: Paul Bolle <pebolle@...cali.nl>
> 
> capi_info2str() is apparently meant to be of general utility. It is
> actually only used in capidrv.c. So move it from capiutil.c to
> capidrv.c and (obviously) stop exporting it.
> 
> And, since we're touching this, merge the two versions of this
> function.


I disagree here, since this is a general helper function and should be
not in a special driver, but stay in capiutils.c which is the place for
the driver independent stuff. I used this function from time to time to
instrument other places for debugging as well.

Karsten

> 
> Signed-off-by: Paul Bolle <pebolle@...cali.nl>
> Signed-off-by: Tilman Schmidt <tilman@...p.cc>
> ---
>  drivers/isdn/capi/capidrv.c   | 195 ++++++++++++++++++++++++++++++++++++++++
>  drivers/isdn/capi/capiutil.c  | 200 ------------------------------------------
>  include/linux/isdn/capiutil.h |   5 --
>  3 files changed, 195 insertions(+), 205 deletions(-)
> 
> diff --git a/drivers/isdn/capi/capidrv.c b/drivers/isdn/capi/capidrv.c
> index cc9f192..70e67f6 100644
> --- a/drivers/isdn/capi/capidrv.c
> +++ b/drivers/isdn/capi/capidrv.c
> @@ -763,6 +763,201 @@ static inline int new_bchan(capidrv_contr *card)
>  }
>  
>  /* ------------------------------------------------------------------- */
> +static char *capi_grep r(u16 reason)
> +{
> +#ifndef CONFIG_ISDN_DRV_AVMB1_VERBOSE_REASON
> +	return "..";
> +#else
> +	switch (reason) {
> +
> +/*-- informative values (corresponding message was processed) -----*/
> +	case 0x0001:
> +		return "NCPI not supported by current protocol, NCPI ignored";
> +	case 0x0002:
> +		return "Flags not supported by current protocol, flags ignored";
> +	case 0x0003:
> +		return "Alert already sent by another application";
> +
> +/*-- error information concerning CAPI_REGISTER -----*/
> +	case 0x1001:
> +		return "Too many applications";
> +	case 0x1002:
> +		return "Logical block size too small, must be at least 128 Bytes";
> +	case 0x1003:
> +		return "Buffer exceeds 64 kByte";
> +	case 0x1004:
> +		return "Message buffer size too small, must be at least 1024 Bytes";
> +	case 0x1005:
> +		return "Max. number of logical connections not supported";
> +	case 0x1006:
> +		return "Reserved";
> +	case 0x1007:
> +		return "The message could not be accepted because of an internal busy condition";
> +	case 0x1008:
> +		return "OS resource error (no memory ?)";
> +	case 0x1009:
> +		return "CAPI not installed";
> +	case 0x100A:
> +		return "Controller does not support external equipment";
> +	case 0x100B:
> +		return "Controller does only support external equipment";
> +
> +/*-- error information concerning message exchange functions -----*/
> +	case 0x1101:
> +		return "Illegal application number";
> +	case 0x1102:
> +		return "Illegal command or subcommand or message length less than 12 bytes";
> +	case 0x1103:
> +		return "The message could not be accepted because of a queue full condition !! The error code does not imply that CAPI cannot receive messages directed to another controller, PLCI or NCCI";
> +	case 0x1104:
> +		return "Queue is empty";
> +	case 0x1105:
> +		return "Queue overflow, a message was lost !! This indicates a configuration error. The only recovery from this error is to perform a CAPI_RELEASE";
> +	case 0x1106:
> +		return "Unknown notification parameter";
> +	case 0x1107:
> +		return "The Message could not be accepted because of an internal busy condition";
> +	case 0x1108:
> +		return "OS Resource error (no memory ?)";
> +	case 0x1109:
> +		return "CAPI not installed";
> +	case 0x110A:
> +		return "Controller does not support external equipment";
> +	case 0x110B:
> +		return "Controller does only support external equipment";
> +
> +/*-- error information concerning resource / coding problems -----*/
> +	case 0x2001:
> +		return "Message not supported in current state";
> +	case 0x2002:
> +		return "Illegal Controller / PLCI / NCCI";
> +	case 0x2003:
> +		return "Out of PLCI";
> +	case 0x2004:
> +		return "Out of NCCI";
> +	case 0x2005:
> +		return "Out of LISTEN";
> +	case 0x2006:
> +		return "Out of FAX resources (protocol T.30)";
> +	case 0x2007:
> +		return "Illegal message parameter coding";
> +
> +/*-- error information concerning requested services  -----*/
> +	case 0x3001:
> +		return "B1 protocol not supported";
> +	case 0x3002:
> +		return "B2 protocol not supported";
> +	case 0x3003:
> +		return "B3 protocol not supported";
> +	case 0x3004:
> +		return "B1 protocol parameter not supported";
> +	case 0x3005:
> +		return "B2 protocol parameter not supported";
> +	case 0x3006:
> +		return "B3 protocol parameter not supported";
> +	case 0x3007:
> +		return "B protocol combination not supported";
> +	case 0x3008:
> +		return "NCPI not supported";
> +	case 0x3009:
> +		return "CIP Value unknown";
> +	case 0x300A:
> +		return "Flags not supported (reserved bits)";
> +	case 0x300B:
> +		return "Facility not supported";
> +	case 0x300C:
> +		return "Data length not supported by current protocol";
> +	case 0x300D:
> +		return "Reset procedure not supported by current protocol";
> +
> +/*-- informations about the clearing of a physical connection -----*/
> +	case 0x3301:
> +		return "Protocol error layer 1 (broken line or B-channel removed by signalling protocol)";
> +	case 0x3302:
> +		return "Protocol error layer 2";
> +	case 0x3303:
> +		return "Protocol error layer 3";
> +	case 0x3304:
> +		return "Another application got that call";
> +/*-- T.30 specific reasons -----*/
> +	case 0x3311:
> +		return "Connecting not successful (remote station is no FAX G3 machine)";
> +	case 0x3312:
> +		return "Connecting not successful (training error)";
> +	case 0x3313:
> +		return "Disconnected before transfer (remote station does not support transfer mode, e.g. resolution)";
> +	case 0x3314:
> +		return "Disconnected during transfer (remote abort)";
> +	case 0x3315:
> +		return "Disconnected during transfer (remote procedure error, e.g. unsuccessful repetition of T.30 commands)";
> +	case 0x3316:
> +		return "Disconnected during transfer (local tx data underrun)";
> +	case 0x3317:
> +		return "Disconnected during transfer (local rx data overflow)";
> +	case 0x3318:
> +		return "Disconnected during transfer (local abort)";
> +	case 0x3319:
> +		return "Illegal parameter coding (e.g. SFF coding error)";
> +
> +/*-- disconnect causes from the network according to ETS 300 102-1/Q.931 -----*/
> +	case 0x3481: return "Unallocated (unassigned) number";
> +	case 0x3482: return "No route to specified transit network";
> +	case 0x3483: return "No route to destination";
> +	case 0x3486: return "Channel unacceptable";
> +	case 0x3487:
> +		return "Call awarded and being delivered in an established channel";
> +	case 0x3490: return "Normal call clearing";
> +	case 0x3491: return "User busy";
> +	case 0x3492: return "No user responding";
> +	case 0x3493: return "No answer from user (user alerted)";
> +	case 0x3495: return "Call rejected";
> +	case 0x3496: return "Number changed";
> +	case 0x349A: return "Non-selected user clearing";
> +	case 0x349B: return "Destination out of order";
> +	case 0x349C: return "Invalid number format";
> +	case 0x349D: return "Facility rejected";
> +	case 0x349E: return "Response to STATUS ENQUIRY";
> +	case 0x349F: return "Normal, unspecified";
> +	case 0x34A2: return "No circuit / channel available";
> +	case 0x34A6: return "Network out of order";
> +	case 0x34A9: return "Temporary failure";
> +	case 0x34AA: return "Switching equipment congestion";
> +	case 0x34AB: return "Access information discarded";
> +	case 0x34AC: return "Requested circuit / channel not available";
> +	case 0x34AF: return "Resources unavailable, unspecified";
> +	case 0x34B1: return "Quality of service unavailable";
> +	case 0x34B2: return "Requested facility not subscribed";
> +	case 0x34B9: return "Bearer capability not authorized";
> +	case 0x34BA: return "Bearer capability not presently available";
> +	case 0x34BF: return "Service or option not available, unspecified";
> +	case 0x34C1: return "Bearer capability not implemented";
> +	case 0x34C2: return "Channel type not implemented";
> +	case 0x34C5: return "Requested facility not implemented";
> +	case 0x34C6: return "Only restricted digital information bearer capability is available";
> +	case 0x34CF: return "Service or option not implemented, unspecified";
> +	case 0x34D1: return "Invalid call reference value";
> +	case 0x34D2: return "Identified channel does not exist";
> +	case 0x34D3: return "A suspended call exists, but this call identity does not";
> +	case 0x34D4: return "Call identity in use";
> +	case 0x34D5: return "No call suspended";
> +	case 0x34D6: return "Call having the requested call identity has been cleared";
> +	case 0x34D8: return "Incompatible destination";
> +	case 0x34DB: return "Invalid transit network selection";
> +	case 0x34DF: return "Invalid message, unspecified";
> +	case 0x34E0: return "Mandatory information element is missing";
> +	case 0x34E1: return "Message type non-existent or not implemented";
> +	case 0x34E2: return "Message not compatible with call state or message type non-existent or not implemented";
> +	case 0x34E3: return "Information element non-existent or not implemented";
> +	case 0x34E4: return "Invalid information element contents";
> +	case 0x34E5: return "Message not compatible with call state";
> +	case 0x34E6: return "Recovery on timer expiry";
> +	case 0x34EF: return "Protocol error, unspecified";
> +	case 0x34FF: return "Interworking, unspecified";
> +
> +	default: return "No additional information";
> +	}
> +#endif
> +}
>  
>  static void handle_controller(_cmsg *cmsg)
>  {
> diff --git a/drivers/isdn/capi/capiutil.c b/drivers/isdn/capi/capiutil.c
> index d26f170..6e797e5 100644
> --- a/drivers/isdn/capi/capiutil.c
> +++ b/drivers/isdn/capi/capiutil.c
> @@ -22,205 +22,6 @@
>  
>  /* from CAPI2.0 DDK AVM Berlin GmbH */
>  
> -#ifndef CONFIG_ISDN_DRV_AVMB1_VERBOSE_REASON
> -char *capi_info2str(u16 reason)
> -{
> -	return "..";
> -}
> -#else
> -char *capi_info2str(u16 reason)
> -{
> -	switch (reason) {
> -
> -/*-- informative values (corresponding message was processed) -----*/
> -	case 0x0001:
> -		return "NCPI not supported by current protocol, NCPI ignored";
> -	case 0x0002:
> -		return "Flags not supported by current protocol, flags ignored";
> -	case 0x0003:
> -		return "Alert already sent by another application";
> -
> -/*-- error information concerning CAPI_REGISTER -----*/
> -	case 0x1001:
> -		return "Too many applications";
> -	case 0x1002:
> -		return "Logical block size too small, must be at least 128 Bytes";
> -	case 0x1003:
> -		return "Buffer exceeds 64 kByte";
> -	case 0x1004:
> -		return "Message buffer size too small, must be at least 1024 Bytes";
> -	case 0x1005:
> -		return "Max. number of logical connections not supported";
> -	case 0x1006:
> -		return "Reserved";
> -	case 0x1007:
> -		return "The message could not be accepted because of an internal busy condition";
> -	case 0x1008:
> -		return "OS resource error (no memory ?)";
> -	case 0x1009:
> -		return "CAPI not installed";
> -	case 0x100A:
> -		return "Controller does not support external equipment";
> -	case 0x100B:
> -		return "Controller does only support external equipment";
> -
> -/*-- error information concerning message exchange functions -----*/
> -	case 0x1101:
> -		return "Illegal application number";
> -	case 0x1102:
> -		return "Illegal command or subcommand or message length less than 12 bytes";
> -	case 0x1103:
> -		return "The message could not be accepted because of a queue full condition !! The error code does not imply that CAPI cannot receive messages directed to another controller, PLCI or NCCI";
> -	case 0x1104:
> -		return "Queue is empty";
> -	case 0x1105:
> -		return "Queue overflow, a message was lost !! This indicates a configuration error. The only recovery from this error is to perform a CAPI_RELEASE";
> -	case 0x1106:
> -		return "Unknown notification parameter";
> -	case 0x1107:
> -		return "The Message could not be accepted because of an internal busy condition";
> -	case 0x1108:
> -		return "OS Resource error (no memory ?)";
> -	case 0x1109:
> -		return "CAPI not installed";
> -	case 0x110A:
> -		return "Controller does not support external equipment";
> -	case 0x110B:
> -		return "Controller does only support external equipment";
> -
> -/*-- error information concerning resource / coding problems -----*/
> -	case 0x2001:
> -		return "Message not supported in current state";
> -	case 0x2002:
> -		return "Illegal Controller / PLCI / NCCI";
> -	case 0x2003:
> -		return "Out of PLCI";
> -	case 0x2004:
> -		return "Out of NCCI";
> -	case 0x2005:
> -		return "Out of LISTEN";
> -	case 0x2006:
> -		return "Out of FAX resources (protocol T.30)";
> -	case 0x2007:
> -		return "Illegal message parameter coding";
> -
> -/*-- error information concerning requested services  -----*/
> -	case 0x3001:
> -		return "B1 protocol not supported";
> -	case 0x3002:
> -		return "B2 protocol not supported";
> -	case 0x3003:
> -		return "B3 protocol not supported";
> -	case 0x3004:
> -		return "B1 protocol parameter not supported";
> -	case 0x3005:
> -		return "B2 protocol parameter not supported";
> -	case 0x3006:
> -		return "B3 protocol parameter not supported";
> -	case 0x3007:
> -		return "B protocol combination not supported";
> -	case 0x3008:
> -		return "NCPI not supported";
> -	case 0x3009:
> -		return "CIP Value unknown";
> -	case 0x300A:
> -		return "Flags not supported (reserved bits)";
> -	case 0x300B:
> -		return "Facility not supported";
> -	case 0x300C:
> -		return "Data length not supported by current protocol";
> -	case 0x300D:
> -		return "Reset procedure not supported by current protocol";
> -
> -/*-- informations about the clearing of a physical connection -----*/
> -	case 0x3301:
> -		return "Protocol error layer 1 (broken line or B-channel removed by signalling protocol)";
> -	case 0x3302:
> -		return "Protocol error layer 2";
> -	case 0x3303:
> -		return "Protocol error layer 3";
> -	case 0x3304:
> -		return "Another application got that call";
> -/*-- T.30 specific reasons -----*/
> -	case 0x3311:
> -		return "Connecting not successful (remote station is no FAX G3 machine)";
> -	case 0x3312:
> -		return "Connecting not successful (training error)";
> -	case 0x3313:
> -		return "Disconnected before transfer (remote station does not support transfer mode, e.g. resolution)";
> -	case 0x3314:
> -		return "Disconnected during transfer (remote abort)";
> -	case 0x3315:
> -		return "Disconnected during transfer (remote procedure error, e.g. unsuccessful repetition of T.30 commands)";
> -	case 0x3316:
> -		return "Disconnected during transfer (local tx data underrun)";
> -	case 0x3317:
> -		return "Disconnected during transfer (local rx data overflow)";
> -	case 0x3318:
> -		return "Disconnected during transfer (local abort)";
> -	case 0x3319:
> -		return "Illegal parameter coding (e.g. SFF coding error)";
> -
> -/*-- disconnect causes from the network according to ETS 300 102-1/Q.931 -----*/
> -	case 0x3481: return "Unallocated (unassigned) number";
> -	case 0x3482: return "No route to specified transit network";
> -	case 0x3483: return "No route to destination";
> -	case 0x3486: return "Channel unacceptable";
> -	case 0x3487:
> -		return "Call awarded and being delivered in an established channel";
> -	case 0x3490: return "Normal call clearing";
> -	case 0x3491: return "User busy";
> -	case 0x3492: return "No user responding";
> -	case 0x3493: return "No answer from user (user alerted)";
> -	case 0x3495: return "Call rejected";
> -	case 0x3496: return "Number changed";
> -	case 0x349A: return "Non-selected user clearing";
> -	case 0x349B: return "Destination out of order";
> -	case 0x349C: return "Invalid number format";
> -	case 0x349D: return "Facility rejected";
> -	case 0x349E: return "Response to STATUS ENQUIRY";
> -	case 0x349F: return "Normal, unspecified";
> -	case 0x34A2: return "No circuit / channel available";
> -	case 0x34A6: return "Network out of order";
> -	case 0x34A9: return "Temporary failure";
> -	case 0x34AA: return "Switching equipment congestion";
> -	case 0x34AB: return "Access information discarded";
> -	case 0x34AC: return "Requested circuit / channel not available";
> -	case 0x34AF: return "Resources unavailable, unspecified";
> -	case 0x34B1: return "Quality of service unavailable";
> -	case 0x34B2: return "Requested facility not subscribed";
> -	case 0x34B9: return "Bearer capability not authorized";
> -	case 0x34BA: return "Bearer capability not presently available";
> -	case 0x34BF: return "Service or option not available, unspecified";
> -	case 0x34C1: return "Bearer capability not implemented";
> -	case 0x34C2: return "Channel type not implemented";
> -	case 0x34C5: return "Requested facility not implemented";
> -	case 0x34C6: return "Only restricted digital information bearer capability is available";
> -	case 0x34CF: return "Service or option not implemented, unspecified";
> -	case 0x34D1: return "Invalid call reference value";
> -	case 0x34D2: return "Identified channel does not exist";
> -	case 0x34D3: return "A suspended call exists, but this call identity does not";
> -	case 0x34D4: return "Call identity in use";
> -	case 0x34D5: return "No call suspended";
> -	case 0x34D6: return "Call having the requested call identity has been cleared";
> -	case 0x34D8: return "Incompatible destination";
> -	case 0x34DB: return "Invalid transit network selection";
> -	case 0x34DF: return "Invalid message, unspecified";
> -	case 0x34E0: return "Mandatory information element is missing";
> -	case 0x34E1: return "Message type non-existent or not implemented";
> -	case 0x34E2: return "Message not compatible with call state or message type non-existent or not implemented";
> -	case 0x34E3: return "Information element non-existent or not implemented";
> -	case 0x34E4: return "Invalid information element contents";
> -	case 0x34E5: return "Message not compatible with call state";
> -	case 0x34E6: return "Recovery on timer expiry";
> -	case 0x34EF: return "Protocol error, unspecified";
> -	case 0x34FF: return "Interworking, unspecified";
> -
> -	default: return "No additional information";
> -	}
> -}
> -#endif
> -
>  typedef struct {
>  	int typ;
>  	size_t off;
> @@ -1073,4 +874,3 @@ EXPORT_SYMBOL(capi_cmsg_header);
>  EXPORT_SYMBOL(capi_cmd2str);
>  EXPORT_SYMBOL(capi_cmsg2str);
>  EXPORT_SYMBOL(capi_message2str);
> -EXPORT_SYMBOL(capi_info2str);
> diff --git a/include/linux/isdn/capiutil.h b/include/linux/isdn/capiutil.h
> index 5a52f2c..44bd604 100644
> --- a/include/linux/isdn/capiutil.h
> +++ b/include/linux/isdn/capiutil.h
> @@ -164,11 +164,6 @@ unsigned capi_cmsg_header(_cmsg * cmsg, __u16 _ApplId,
>  			  __u8 _Command, __u8 _Subcommand,
>  			  __u16 _Messagenumber, __u32 _Controller);
>  
> -/*
> - * capi_info2str generated a readable string for Capi2.0 reasons.
> - */
> -char *capi_info2str(__u16 reason);
> -
>  /*-----------------------------------------------------------------------*/
>  
>  /*
> 

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