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677 lines
16 KiB
677 lines
16 KiB
/* $Id: capiutil.c,v 1.13.6.4 2001/09/23 22:24:33 kai Exp $ |
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* |
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* CAPI 2.0 convert capi message to capi message struct |
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* |
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* From CAPI 2.0 Development Kit AVM 1995 (msg.c) |
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* Rewritten for Linux 1996 by Carsten Paeth <[email protected]> |
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* |
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* This software may be used and distributed according to the terms |
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* of the GNU General Public License, incorporated herein by reference. |
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* |
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*/ |
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#include <linux/module.h> |
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#include <linux/string.h> |
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#include <linux/ctype.h> |
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#include <linux/stddef.h> |
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#include <linux/kernel.h> |
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#include <linux/mm.h> |
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#include <linux/init.h> |
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#include <linux/isdn/capiutil.h> |
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#include <linux/slab.h> |
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#include "kcapi.h" |
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/* from CAPI2.0 DDK AVM Berlin GmbH */ |
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typedef struct { |
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int typ; |
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size_t off; |
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} _cdef; |
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#define _CBYTE 1 |
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#define _CWORD 2 |
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#define _CDWORD 3 |
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#define _CSTRUCT 4 |
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#define _CMSTRUCT 5 |
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#define _CEND 6 |
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static _cdef cdef[] = |
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{ |
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/*00 */ |
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{_CEND}, |
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/*01 */ |
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{_CEND}, |
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/*02 */ |
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{_CEND}, |
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/*03 */ |
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{_CDWORD, offsetof(_cmsg, adr.adrController)}, |
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/*04 */ |
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{_CMSTRUCT, offsetof(_cmsg, AdditionalInfo)}, |
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/*05 */ |
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{_CSTRUCT, offsetof(_cmsg, B1configuration)}, |
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/*06 */ |
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{_CWORD, offsetof(_cmsg, B1protocol)}, |
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/*07 */ |
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{_CSTRUCT, offsetof(_cmsg, B2configuration)}, |
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/*08 */ |
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{_CWORD, offsetof(_cmsg, B2protocol)}, |
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/*09 */ |
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{_CSTRUCT, offsetof(_cmsg, B3configuration)}, |
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/*0a */ |
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{_CWORD, offsetof(_cmsg, B3protocol)}, |
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/*0b */ |
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{_CSTRUCT, offsetof(_cmsg, BC)}, |
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/*0c */ |
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{_CSTRUCT, offsetof(_cmsg, BChannelinformation)}, |
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/*0d */ |
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{_CMSTRUCT, offsetof(_cmsg, BProtocol)}, |
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/*0e */ |
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{_CSTRUCT, offsetof(_cmsg, CalledPartyNumber)}, |
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/*0f */ |
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{_CSTRUCT, offsetof(_cmsg, CalledPartySubaddress)}, |
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/*10 */ |
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{_CSTRUCT, offsetof(_cmsg, CallingPartyNumber)}, |
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/*11 */ |
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{_CSTRUCT, offsetof(_cmsg, CallingPartySubaddress)}, |
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/*12 */ |
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{_CDWORD, offsetof(_cmsg, CIPmask)}, |
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/*13 */ |
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{_CDWORD, offsetof(_cmsg, CIPmask2)}, |
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/*14 */ |
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{_CWORD, offsetof(_cmsg, CIPValue)}, |
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/*15 */ |
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{_CDWORD, offsetof(_cmsg, Class)}, |
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/*16 */ |
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{_CSTRUCT, offsetof(_cmsg, ConnectedNumber)}, |
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/*17 */ |
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{_CSTRUCT, offsetof(_cmsg, ConnectedSubaddress)}, |
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/*18 */ |
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{_CDWORD, offsetof(_cmsg, Data)}, |
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/*19 */ |
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{_CWORD, offsetof(_cmsg, DataHandle)}, |
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/*1a */ |
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{_CWORD, offsetof(_cmsg, DataLength)}, |
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/*1b */ |
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{_CSTRUCT, offsetof(_cmsg, FacilityConfirmationParameter)}, |
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/*1c */ |
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{_CSTRUCT, offsetof(_cmsg, Facilitydataarray)}, |
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/*1d */ |
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{_CSTRUCT, offsetof(_cmsg, FacilityIndicationParameter)}, |
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/*1e */ |
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{_CSTRUCT, offsetof(_cmsg, FacilityRequestParameter)}, |
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/*1f */ |
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{_CWORD, offsetof(_cmsg, FacilitySelector)}, |
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/*20 */ |
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{_CWORD, offsetof(_cmsg, Flags)}, |
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/*21 */ |
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{_CDWORD, offsetof(_cmsg, Function)}, |
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/*22 */ |
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{_CSTRUCT, offsetof(_cmsg, HLC)}, |
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/*23 */ |
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{_CWORD, offsetof(_cmsg, Info)}, |
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/*24 */ |
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{_CSTRUCT, offsetof(_cmsg, InfoElement)}, |
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/*25 */ |
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{_CDWORD, offsetof(_cmsg, InfoMask)}, |
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/*26 */ |
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{_CWORD, offsetof(_cmsg, InfoNumber)}, |
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/*27 */ |
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{_CSTRUCT, offsetof(_cmsg, Keypadfacility)}, |
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/*28 */ |
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{_CSTRUCT, offsetof(_cmsg, LLC)}, |
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/*29 */ |
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{_CSTRUCT, offsetof(_cmsg, ManuData)}, |
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/*2a */ |
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{_CDWORD, offsetof(_cmsg, ManuID)}, |
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/*2b */ |
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{_CSTRUCT, offsetof(_cmsg, NCPI)}, |
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/*2c */ |
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{_CWORD, offsetof(_cmsg, Reason)}, |
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/*2d */ |
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{_CWORD, offsetof(_cmsg, Reason_B3)}, |
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/*2e */ |
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{_CWORD, offsetof(_cmsg, Reject)}, |
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/*2f */ |
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{_CSTRUCT, offsetof(_cmsg, Useruserdata)} |
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}; |
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static unsigned char *cpars[] = |
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{ |
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/* ALERT_REQ */ [0x01] = "\x03\x04\x0c\x27\x2f\x1c\x01\x01", |
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/* CONNECT_REQ */ [0x02] = "\x03\x14\x0e\x10\x0f\x11\x0d\x06\x08\x0a\x05\x07\x09\x01\x0b\x28\x22\x04\x0c\x27\x2f\x1c\x01\x01", |
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/* DISCONNECT_REQ */ [0x04] = "\x03\x04\x0c\x27\x2f\x1c\x01\x01", |
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/* LISTEN_REQ */ [0x05] = "\x03\x25\x12\x13\x10\x11\x01", |
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/* INFO_REQ */ [0x08] = "\x03\x0e\x04\x0c\x27\x2f\x1c\x01\x01", |
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/* FACILITY_REQ */ [0x09] = "\x03\x1f\x1e\x01", |
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/* SELECT_B_PROTOCOL_REQ */ [0x0a] = "\x03\x0d\x06\x08\x0a\x05\x07\x09\x01\x01", |
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/* CONNECT_B3_REQ */ [0x0b] = "\x03\x2b\x01", |
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/* DISCONNECT_B3_REQ */ [0x0d] = "\x03\x2b\x01", |
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/* DATA_B3_REQ */ [0x0f] = "\x03\x18\x1a\x19\x20\x01", |
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/* RESET_B3_REQ */ [0x10] = "\x03\x2b\x01", |
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/* ALERT_CONF */ [0x13] = "\x03\x23\x01", |
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/* CONNECT_CONF */ [0x14] = "\x03\x23\x01", |
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/* DISCONNECT_CONF */ [0x16] = "\x03\x23\x01", |
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/* LISTEN_CONF */ [0x17] = "\x03\x23\x01", |
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/* MANUFACTURER_REQ */ [0x18] = "\x03\x2a\x15\x21\x29\x01", |
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/* INFO_CONF */ [0x1a] = "\x03\x23\x01", |
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/* FACILITY_CONF */ [0x1b] = "\x03\x23\x1f\x1b\x01", |
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/* SELECT_B_PROTOCOL_CONF */ [0x1c] = "\x03\x23\x01", |
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/* CONNECT_B3_CONF */ [0x1d] = "\x03\x23\x01", |
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/* DISCONNECT_B3_CONF */ [0x1f] = "\x03\x23\x01", |
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/* DATA_B3_CONF */ [0x21] = "\x03\x19\x23\x01", |
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/* RESET_B3_CONF */ [0x22] = "\x03\x23\x01", |
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/* CONNECT_IND */ [0x26] = "\x03\x14\x0e\x10\x0f\x11\x0b\x28\x22\x04\x0c\x27\x2f\x1c\x01\x01", |
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/* CONNECT_ACTIVE_IND */ [0x27] = "\x03\x16\x17\x28\x01", |
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/* DISCONNECT_IND */ [0x28] = "\x03\x2c\x01", |
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/* MANUFACTURER_CONF */ [0x2a] = "\x03\x2a\x15\x21\x29\x01", |
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/* INFO_IND */ [0x2c] = "\x03\x26\x24\x01", |
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/* FACILITY_IND */ [0x2d] = "\x03\x1f\x1d\x01", |
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/* CONNECT_B3_IND */ [0x2f] = "\x03\x2b\x01", |
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/* CONNECT_B3_ACTIVE_IND */ [0x30] = "\x03\x2b\x01", |
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/* DISCONNECT_B3_IND */ [0x31] = "\x03\x2d\x2b\x01", |
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/* DATA_B3_IND */ [0x33] = "\x03\x18\x1a\x19\x20\x01", |
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/* RESET_B3_IND */ [0x34] = "\x03\x2b\x01", |
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/* CONNECT_B3_T90_ACTIVE_IND */ [0x35] = "\x03\x2b\x01", |
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/* CONNECT_RESP */ [0x38] = "\x03\x2e\x0d\x06\x08\x0a\x05\x07\x09\x01\x16\x17\x28\x04\x0c\x27\x2f\x1c\x01\x01", |
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/* CONNECT_ACTIVE_RESP */ [0x39] = "\x03\x01", |
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/* DISCONNECT_RESP */ [0x3a] = "\x03\x01", |
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/* MANUFACTURER_IND */ [0x3c] = "\x03\x2a\x15\x21\x29\x01", |
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/* INFO_RESP */ [0x3e] = "\x03\x01", |
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/* FACILITY_RESP */ [0x3f] = "\x03\x1f\x01", |
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/* CONNECT_B3_RESP */ [0x41] = "\x03\x2e\x2b\x01", |
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/* CONNECT_B3_ACTIVE_RESP */ [0x42] = "\x03\x01", |
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/* DISCONNECT_B3_RESP */ [0x43] = "\x03\x01", |
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/* DATA_B3_RESP */ [0x45] = "\x03\x19\x01", |
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/* RESET_B3_RESP */ [0x46] = "\x03\x01", |
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/* CONNECT_B3_T90_ACTIVE_RESP */ [0x47] = "\x03\x01", |
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/* MANUFACTURER_RESP */ [0x4e] = "\x03\x2a\x15\x21\x29\x01", |
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}; |
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/*-------------------------------------------------------*/ |
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#define byteTLcpy(x, y) *(u8 *)(x) = *(u8 *)(y); |
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#define wordTLcpy(x, y) *(u16 *)(x) = *(u16 *)(y); |
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#define dwordTLcpy(x, y) memcpy(x, y, 4); |
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#define structTLcpy(x, y, l) memcpy(x, y, l) |
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#define structTLcpyovl(x, y, l) memmove(x, y, l) |
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#define byteTRcpy(x, y) *(u8 *)(y) = *(u8 *)(x); |
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#define wordTRcpy(x, y) *(u16 *)(y) = *(u16 *)(x); |
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#define dwordTRcpy(x, y) memcpy(y, x, 4); |
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#define structTRcpy(x, y, l) memcpy(y, x, l) |
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#define structTRcpyovl(x, y, l) memmove(y, x, l) |
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/*-------------------------------------------------------*/ |
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static unsigned command_2_index(u8 c, u8 sc) |
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{ |
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if (c & 0x80) |
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c = 0x9 + (c & 0x0f); |
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else if (c == 0x41) |
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c = 0x9 + 0x1; |
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if (c > 0x18) |
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c = 0x00; |
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return (sc & 3) * (0x9 + 0x9) + c; |
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} |
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/** |
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* capi_cmd2par() - find parameter string for CAPI 2.0 command/subcommand |
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* @cmd: command number |
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* @subcmd: subcommand number |
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* |
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* Return value: static string, NULL if command/subcommand unknown |
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*/ |
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static unsigned char *capi_cmd2par(u8 cmd, u8 subcmd) |
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{ |
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return cpars[command_2_index(cmd, subcmd)]; |
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} |
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/*-------------------------------------------------------*/ |
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#define TYP (cdef[cmsg->par[cmsg->p]].typ) |
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#define OFF (((u8 *)cmsg) + cdef[cmsg->par[cmsg->p]].off) |
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static void jumpcstruct(_cmsg *cmsg) |
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{ |
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unsigned layer; |
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for (cmsg->p++, layer = 1; layer;) { |
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/* $$$$$ assert (cmsg->p); */ |
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cmsg->p++; |
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switch (TYP) { |
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case _CMSTRUCT: |
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layer++; |
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break; |
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case _CEND: |
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layer--; |
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break; |
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} |
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} |
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} |
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/*-------------------------------------------------------*/ |
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static char *mnames[] = |
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{ |
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[0x01] = "ALERT_REQ", |
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[0x02] = "CONNECT_REQ", |
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[0x04] = "DISCONNECT_REQ", |
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[0x05] = "LISTEN_REQ", |
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[0x08] = "INFO_REQ", |
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[0x09] = "FACILITY_REQ", |
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[0x0a] = "SELECT_B_PROTOCOL_REQ", |
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[0x0b] = "CONNECT_B3_REQ", |
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[0x0d] = "DISCONNECT_B3_REQ", |
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[0x0f] = "DATA_B3_REQ", |
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[0x10] = "RESET_B3_REQ", |
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[0x13] = "ALERT_CONF", |
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[0x14] = "CONNECT_CONF", |
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[0x16] = "DISCONNECT_CONF", |
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[0x17] = "LISTEN_CONF", |
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[0x18] = "MANUFACTURER_REQ", |
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[0x1a] = "INFO_CONF", |
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[0x1b] = "FACILITY_CONF", |
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[0x1c] = "SELECT_B_PROTOCOL_CONF", |
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[0x1d] = "CONNECT_B3_CONF", |
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[0x1f] = "DISCONNECT_B3_CONF", |
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[0x21] = "DATA_B3_CONF", |
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[0x22] = "RESET_B3_CONF", |
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[0x26] = "CONNECT_IND", |
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[0x27] = "CONNECT_ACTIVE_IND", |
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[0x28] = "DISCONNECT_IND", |
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[0x2a] = "MANUFACTURER_CONF", |
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[0x2c] = "INFO_IND", |
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[0x2d] = "FACILITY_IND", |
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[0x2f] = "CONNECT_B3_IND", |
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[0x30] = "CONNECT_B3_ACTIVE_IND", |
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[0x31] = "DISCONNECT_B3_IND", |
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[0x33] = "DATA_B3_IND", |
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[0x34] = "RESET_B3_IND", |
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[0x35] = "CONNECT_B3_T90_ACTIVE_IND", |
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[0x38] = "CONNECT_RESP", |
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[0x39] = "CONNECT_ACTIVE_RESP", |
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[0x3a] = "DISCONNECT_RESP", |
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[0x3c] = "MANUFACTURER_IND", |
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[0x3e] = "INFO_RESP", |
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[0x3f] = "FACILITY_RESP", |
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[0x41] = "CONNECT_B3_RESP", |
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[0x42] = "CONNECT_B3_ACTIVE_RESP", |
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[0x43] = "DISCONNECT_B3_RESP", |
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[0x45] = "DATA_B3_RESP", |
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[0x46] = "RESET_B3_RESP", |
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[0x47] = "CONNECT_B3_T90_ACTIVE_RESP", |
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[0x4e] = "MANUFACTURER_RESP" |
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}; |
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/** |
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* capi_cmd2str() - convert CAPI 2.0 command/subcommand number to name |
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* @cmd: command number |
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* @subcmd: subcommand number |
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* |
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* Return value: static string |
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*/ |
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char *capi_cmd2str(u8 cmd, u8 subcmd) |
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{ |
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char *result; |
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result = mnames[command_2_index(cmd, subcmd)]; |
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if (result == NULL) |
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result = "INVALID_COMMAND"; |
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return result; |
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} |
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/*-------------------------------------------------------*/ |
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#ifdef CONFIG_CAPI_TRACE |
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/*-------------------------------------------------------*/ |
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static char *pnames[] = |
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{ |
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/*00 */ NULL, |
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/*01 */ NULL, |
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/*02 */ NULL, |
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/*03 */ "Controller/PLCI/NCCI", |
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/*04 */ "AdditionalInfo", |
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/*05 */ "B1configuration", |
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/*06 */ "B1protocol", |
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/*07 */ "B2configuration", |
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/*08 */ "B2protocol", |
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/*09 */ "B3configuration", |
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/*0a */ "B3protocol", |
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/*0b */ "BC", |
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/*0c */ "BChannelinformation", |
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/*0d */ "BProtocol", |
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/*0e */ "CalledPartyNumber", |
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/*0f */ "CalledPartySubaddress", |
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/*10 */ "CallingPartyNumber", |
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/*11 */ "CallingPartySubaddress", |
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/*12 */ "CIPmask", |
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/*13 */ "CIPmask2", |
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/*14 */ "CIPValue", |
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/*15 */ "Class", |
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/*16 */ "ConnectedNumber", |
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/*17 */ "ConnectedSubaddress", |
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/*18 */ "Data32", |
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/*19 */ "DataHandle", |
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/*1a */ "DataLength", |
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/*1b */ "FacilityConfirmationParameter", |
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/*1c */ "Facilitydataarray", |
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/*1d */ "FacilityIndicationParameter", |
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/*1e */ "FacilityRequestParameter", |
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/*1f */ "FacilitySelector", |
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/*20 */ "Flags", |
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/*21 */ "Function", |
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/*22 */ "HLC", |
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/*23 */ "Info", |
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/*24 */ "InfoElement", |
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/*25 */ "InfoMask", |
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/*26 */ "InfoNumber", |
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/*27 */ "Keypadfacility", |
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/*28 */ "LLC", |
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/*29 */ "ManuData", |
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/*2a */ "ManuID", |
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/*2b */ "NCPI", |
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/*2c */ "Reason", |
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/*2d */ "Reason_B3", |
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/*2e */ "Reject", |
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/*2f */ "Useruserdata" |
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}; |
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#include <stdarg.h> |
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/*-------------------------------------------------------*/ |
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static _cdebbuf *bufprint(_cdebbuf *cdb, char *fmt, ...) |
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{ |
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va_list f; |
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size_t n, r; |
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if (!cdb) |
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return NULL; |
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va_start(f, fmt); |
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r = cdb->size - cdb->pos; |
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n = vsnprintf(cdb->p, r, fmt, f); |
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va_end(f); |
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if (n >= r) { |
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/* truncated, need bigger buffer */ |
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size_t ns = 2 * cdb->size; |
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u_char *nb; |
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while ((ns - cdb->pos) <= n) |
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ns *= 2; |
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nb = kmalloc(ns, GFP_ATOMIC); |
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if (!nb) { |
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cdebbuf_free(cdb); |
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return NULL; |
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} |
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memcpy(nb, cdb->buf, cdb->pos); |
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kfree(cdb->buf); |
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nb[cdb->pos] = 0; |
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cdb->buf = nb; |
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cdb->p = cdb->buf + cdb->pos; |
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cdb->size = ns; |
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va_start(f, fmt); |
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r = cdb->size - cdb->pos; |
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n = vsnprintf(cdb->p, r, fmt, f); |
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va_end(f); |
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} |
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cdb->p += n; |
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cdb->pos += n; |
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return cdb; |
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} |
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static _cdebbuf *printstructlen(_cdebbuf *cdb, u8 *m, unsigned len) |
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{ |
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unsigned hex = 0; |
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if (!cdb) |
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return NULL; |
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for (; len; len--, m++) |
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if (isalnum(*m) || *m == ' ') { |
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if (hex) |
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cdb = bufprint(cdb, ">"); |
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cdb = bufprint(cdb, "%c", *m); |
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hex = 0; |
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} else { |
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if (!hex) |
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cdb = bufprint(cdb, "<%02x", *m); |
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else |
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cdb = bufprint(cdb, " %02x", *m); |
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hex = 1; |
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} |
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if (hex) |
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cdb = bufprint(cdb, ">"); |
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return cdb; |
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} |
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static _cdebbuf *printstruct(_cdebbuf *cdb, u8 *m) |
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{ |
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unsigned len; |
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if (m[0] != 0xff) { |
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len = m[0]; |
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m += 1; |
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} else { |
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len = ((u16 *) (m + 1))[0]; |
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m += 3; |
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} |
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cdb = printstructlen(cdb, m, len); |
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return cdb; |
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} |
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/*-------------------------------------------------------*/ |
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#define NAME (pnames[cmsg->par[cmsg->p]]) |
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|
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static _cdebbuf *protocol_message_2_pars(_cdebbuf *cdb, _cmsg *cmsg, int level) |
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{ |
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if (!cmsg->par) |
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return NULL; /* invalid command/subcommand */ |
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|
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for (; TYP != _CEND; cmsg->p++) { |
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int slen = 29 + 3 - level; |
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int i; |
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|
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if (!cdb) |
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return NULL; |
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cdb = bufprint(cdb, " "); |
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for (i = 0; i < level - 1; i++) |
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cdb = bufprint(cdb, " "); |
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|
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switch (TYP) { |
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case _CBYTE: |
|
cdb = bufprint(cdb, "%-*s = 0x%x\n", slen, NAME, *(u8 *) (cmsg->m + cmsg->l)); |
|
cmsg->l++; |
|
break; |
|
case _CWORD: |
|
cdb = bufprint(cdb, "%-*s = 0x%x\n", slen, NAME, *(u16 *) (cmsg->m + cmsg->l)); |
|
cmsg->l += 2; |
|
break; |
|
case _CDWORD: |
|
cdb = bufprint(cdb, "%-*s = 0x%lx\n", slen, NAME, *(u32 *) (cmsg->m + cmsg->l)); |
|
cmsg->l += 4; |
|
break; |
|
case _CSTRUCT: |
|
cdb = bufprint(cdb, "%-*s = ", slen, NAME); |
|
if (cmsg->m[cmsg->l] == '\0') |
|
cdb = bufprint(cdb, "default"); |
|
else |
|
cdb = printstruct(cdb, cmsg->m + cmsg->l); |
|
cdb = bufprint(cdb, "\n"); |
|
if (cmsg->m[cmsg->l] != 0xff) |
|
cmsg->l += 1 + cmsg->m[cmsg->l]; |
|
else |
|
cmsg->l += 3 + *(u16 *) (cmsg->m + cmsg->l + 1); |
|
|
|
break; |
|
|
|
case _CMSTRUCT: |
|
/*----- Metastruktur 0 -----*/ |
|
if (cmsg->m[cmsg->l] == '\0') { |
|
cdb = bufprint(cdb, "%-*s = default\n", slen, NAME); |
|
cmsg->l++; |
|
jumpcstruct(cmsg); |
|
} else { |
|
char *name = NAME; |
|
unsigned _l = cmsg->l; |
|
cdb = bufprint(cdb, "%-*s\n", slen, name); |
|
cmsg->l = (cmsg->m + _l)[0] == 255 ? cmsg->l + 3 : cmsg->l + 1; |
|
cmsg->p++; |
|
cdb = protocol_message_2_pars(cdb, cmsg, level + 1); |
|
} |
|
break; |
|
} |
|
} |
|
return cdb; |
|
} |
|
/*-------------------------------------------------------*/ |
|
|
|
static _cdebbuf *g_debbuf; |
|
static u_long g_debbuf_lock; |
|
static _cmsg *g_cmsg; |
|
|
|
static _cdebbuf *cdebbuf_alloc(void) |
|
{ |
|
_cdebbuf *cdb; |
|
|
|
if (likely(!test_and_set_bit(1, &g_debbuf_lock))) { |
|
cdb = g_debbuf; |
|
goto init; |
|
} else |
|
cdb = kmalloc(sizeof(_cdebbuf), GFP_ATOMIC); |
|
if (!cdb) |
|
return NULL; |
|
cdb->buf = kmalloc(CDEBUG_SIZE, GFP_ATOMIC); |
|
if (!cdb->buf) { |
|
kfree(cdb); |
|
return NULL; |
|
} |
|
cdb->size = CDEBUG_SIZE; |
|
init: |
|
cdb->buf[0] = 0; |
|
cdb->p = cdb->buf; |
|
cdb->pos = 0; |
|
return cdb; |
|
} |
|
|
|
/** |
|
* cdebbuf_free() - free CAPI debug buffer |
|
* @cdb: buffer to free |
|
*/ |
|
|
|
void cdebbuf_free(_cdebbuf *cdb) |
|
{ |
|
if (likely(cdb == g_debbuf)) { |
|
test_and_clear_bit(1, &g_debbuf_lock); |
|
return; |
|
} |
|
if (likely(cdb)) |
|
kfree(cdb->buf); |
|
kfree(cdb); |
|
} |
|
|
|
|
|
/** |
|
* capi_message2str() - format CAPI 2.0 message for printing |
|
* @msg: CAPI 2.0 message |
|
* |
|
* Allocates a CAPI debug buffer and fills it with a printable representation |
|
* of the CAPI 2.0 message in @msg. |
|
* Return value: allocated debug buffer, NULL on error |
|
* The returned buffer should be freed by a call to cdebbuf_free() after use. |
|
*/ |
|
|
|
_cdebbuf *capi_message2str(u8 *msg) |
|
{ |
|
_cdebbuf *cdb; |
|
_cmsg *cmsg; |
|
|
|
cdb = cdebbuf_alloc(); |
|
if (unlikely(!cdb)) |
|
return NULL; |
|
if (likely(cdb == g_debbuf)) |
|
cmsg = g_cmsg; |
|
else |
|
cmsg = kmalloc(sizeof(_cmsg), GFP_ATOMIC); |
|
if (unlikely(!cmsg)) { |
|
cdebbuf_free(cdb); |
|
return NULL; |
|
} |
|
cmsg->m = msg; |
|
cmsg->l = 8; |
|
cmsg->p = 0; |
|
byteTRcpy(cmsg->m + 4, &cmsg->Command); |
|
byteTRcpy(cmsg->m + 5, &cmsg->Subcommand); |
|
cmsg->par = capi_cmd2par(cmsg->Command, cmsg->Subcommand); |
|
|
|
cdb = bufprint(cdb, "%-26s ID=%03d #0x%04x LEN=%04d\n", |
|
capi_cmd2str(cmsg->Command, cmsg->Subcommand), |
|
((unsigned short *) msg)[1], |
|
((unsigned short *) msg)[3], |
|
((unsigned short *) msg)[0]); |
|
|
|
cdb = protocol_message_2_pars(cdb, cmsg, 1); |
|
if (unlikely(cmsg != g_cmsg)) |
|
kfree(cmsg); |
|
return cdb; |
|
} |
|
|
|
int __init cdebug_init(void) |
|
{ |
|
g_cmsg = kmalloc(sizeof(_cmsg), GFP_KERNEL); |
|
if (!g_cmsg) |
|
return -ENOMEM; |
|
g_debbuf = kmalloc(sizeof(_cdebbuf), GFP_KERNEL); |
|
if (!g_debbuf) { |
|
kfree(g_cmsg); |
|
return -ENOMEM; |
|
} |
|
g_debbuf->buf = kmalloc(CDEBUG_GSIZE, GFP_KERNEL); |
|
if (!g_debbuf->buf) { |
|
kfree(g_cmsg); |
|
kfree(g_debbuf); |
|
return -ENOMEM; |
|
} |
|
g_debbuf->size = CDEBUG_GSIZE; |
|
g_debbuf->buf[0] = 0; |
|
g_debbuf->p = g_debbuf->buf; |
|
g_debbuf->pos = 0; |
|
return 0; |
|
} |
|
|
|
void cdebug_exit(void) |
|
{ |
|
if (g_debbuf) |
|
kfree(g_debbuf->buf); |
|
kfree(g_debbuf); |
|
kfree(g_cmsg); |
|
} |
|
|
|
#else /* !CONFIG_CAPI_TRACE */ |
|
|
|
static _cdebbuf g_debbuf = {"CONFIG_CAPI_TRACE not enabled", NULL, 0, 0}; |
|
|
|
_cdebbuf *capi_message2str(u8 *msg) |
|
{ |
|
return &g_debbuf; |
|
} |
|
|
|
_cdebbuf *capi_cmsg2str(_cmsg *cmsg) |
|
{ |
|
return &g_debbuf; |
|
} |
|
|
|
void cdebbuf_free(_cdebbuf *cdb) |
|
{ |
|
} |
|
|
|
int __init cdebug_init(void) |
|
{ |
|
return 0; |
|
} |
|
|
|
void cdebug_exit(void) |
|
{ |
|
} |
|
|
|
#endif
|
|
|