From 871480933a1c28f8a9fed4c4d34d06c439a7a422 Mon Sep 17 00:00:00 2001
From: Srikant Patnaik
Date: Sun, 11 Jan 2015 12:28:04 +0530
Subject: Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
---
ANDROID_3.4.5/drivers/isdn/gigaset/capi.c | 2436 -----------------------------
1 file changed, 2436 deletions(-)
delete mode 100644 ANDROID_3.4.5/drivers/isdn/gigaset/capi.c
(limited to 'ANDROID_3.4.5/drivers/isdn/gigaset/capi.c')
diff --git a/ANDROID_3.4.5/drivers/isdn/gigaset/capi.c b/ANDROID_3.4.5/drivers/isdn/gigaset/capi.c
deleted file mode 100644
index 579aa021..00000000
--- a/ANDROID_3.4.5/drivers/isdn/gigaset/capi.c
+++ /dev/null
@@ -1,2436 +0,0 @@
-/*
- * Kernel CAPI interface for the Gigaset driver
- *
- * Copyright (c) 2009 by Tilman Schmidt <tilman@imap.cc>.
- *
- * =====================================================================
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- * =====================================================================
- */
-
-#include "gigaset.h"
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/ratelimit.h>
-#include <linux/isdn/capilli.h>
-#include <linux/isdn/capicmd.h>
-#include <linux/isdn/capiutil.h>
-#include <linux/export.h>
-
-/* missing from kernelcapi.h */
-#define CapiNcpiNotSupportedByProtocol 0x0001
-#define CapiFlagsNotSupportedByProtocol 0x0002
-#define CapiAlertAlreadySent 0x0003
-#define CapiFacilitySpecificFunctionNotSupported 0x3011
-
-/* missing from capicmd.h */
-#define CAPI_CONNECT_IND_BASELEN (CAPI_MSG_BASELEN + 4 + 2 + 8 * 1)
-#define CAPI_CONNECT_ACTIVE_IND_BASELEN (CAPI_MSG_BASELEN + 4 + 3 * 1)
-#define CAPI_CONNECT_B3_IND_BASELEN (CAPI_MSG_BASELEN + 4 + 1)
-#define CAPI_CONNECT_B3_ACTIVE_IND_BASELEN (CAPI_MSG_BASELEN + 4 + 1)
-#define CAPI_DATA_B3_REQ_LEN64 (CAPI_MSG_BASELEN + 4 + 4 + 2 + 2 + 2 + 8)
-#define CAPI_DATA_B3_CONF_LEN (CAPI_MSG_BASELEN + 4 + 2 + 2)
-#define CAPI_DISCONNECT_IND_LEN (CAPI_MSG_BASELEN + 4 + 2)
-#define CAPI_DISCONNECT_B3_IND_BASELEN (CAPI_MSG_BASELEN + 4 + 2 + 1)
-#define CAPI_FACILITY_CONF_BASELEN (CAPI_MSG_BASELEN + 4 + 2 + 2 + 1)
-/* most _CONF messages contain only Controller/PLCI/NCCI and Info parameters */
-#define CAPI_STDCONF_LEN (CAPI_MSG_BASELEN + 4 + 2)
-
-#define CAPI_FACILITY_HANDSET 0x0000
-#define CAPI_FACILITY_DTMF 0x0001
-#define CAPI_FACILITY_V42BIS 0x0002
-#define CAPI_FACILITY_SUPPSVC 0x0003
-#define CAPI_FACILITY_WAKEUP 0x0004
-#define CAPI_FACILITY_LI 0x0005
-
-#define CAPI_SUPPSVC_GETSUPPORTED 0x0000
-#define CAPI_SUPPSVC_LISTEN 0x0001
-
-/* missing from capiutil.h */
-#define CAPIMSG_PLCI_PART(m) CAPIMSG_U8(m, 9)
-#define CAPIMSG_NCCI_PART(m) CAPIMSG_U16(m, 10)
-#define CAPIMSG_HANDLE_REQ(m) CAPIMSG_U16(m, 18) /* DATA_B3_REQ/_IND only! */
-#define CAPIMSG_FLAGS(m) CAPIMSG_U16(m, 20)
-#define CAPIMSG_SETCONTROLLER(m, contr) capimsg_setu8(m, 8, contr)
-#define CAPIMSG_SETPLCI_PART(m, plci) capimsg_setu8(m, 9, plci)
-#define CAPIMSG_SETNCCI_PART(m, ncci) capimsg_setu16(m, 10, ncci)
-#define CAPIMSG_SETFLAGS(m, flags) capimsg_setu16(m, 20, flags)
-
-/* parameters with differing location in DATA_B3_CONF/_RESP: */
-#define CAPIMSG_SETHANDLE_CONF(m, handle) capimsg_setu16(m, 12, handle)
-#define CAPIMSG_SETINFO_CONF(m, info) capimsg_setu16(m, 14, info)
-
-/* Flags (DATA_B3_REQ/_IND) */
-#define CAPI_FLAGS_DELIVERY_CONFIRMATION 0x04
-#define CAPI_FLAGS_RESERVED (~0x1f)
-
-/* buffer sizes */
-#define MAX_BC_OCTETS 11
-#define MAX_HLC_OCTETS 3
-#define MAX_NUMBER_DIGITS 20
-#define MAX_FMT_IE_LEN 20
-
-/* values for bcs->apconnstate */
-#define APCONN_NONE 0 /* inactive/listening */
-#define APCONN_SETUP 1 /* connecting */
-#define APCONN_ACTIVE 2 /* B channel up */
-
-/* registered application data structure */
-struct gigaset_capi_appl {
- struct list_head ctrlist;
- struct gigaset_capi_appl *bcnext;
- u16 id;
- struct capi_register_params rp;
- u16 nextMessageNumber;
- u32 listenInfoMask;
- u32 listenCIPmask;
-};
-
-/* CAPI specific controller data structure */
-struct gigaset_capi_ctr {
- struct capi_ctr ctr;
- struct list_head appls;
- struct sk_buff_head sendqueue;
- atomic_t sendqlen;
- /* two _cmsg structures possibly used concurrently: */
- _cmsg hcmsg; /* for message composition triggered from hardware */
- _cmsg acmsg; /* for dissection of messages sent from application */
- u8 bc_buf[MAX_BC_OCTETS + 1];
- u8 hlc_buf[MAX_HLC_OCTETS + 1];
- u8 cgpty_buf[MAX_NUMBER_DIGITS + 3];
- u8 cdpty_buf[MAX_NUMBER_DIGITS + 2];
-};
-
-/* CIP Value table (from CAPI 2.0 standard, ch. 6.1) */
-static struct {
- u8 *bc;
- u8 *hlc;
-} cip2bchlc[] = {
- [1] = { "8090A3", NULL },
- /* Speech (A-law) */
- [2] = { "8890", NULL },
- /* Unrestricted digital information */
- [3] = { "8990", NULL },
- /* Restricted digital information */
- [4] = { "9090A3", NULL },
- /* 3,1 kHz audio (A-law) */
- [5] = { "9190", NULL },
- /* 7 kHz audio */
- [6] = { "9890", NULL },
- /* Video */
- [7] = { "88C0C6E6", NULL },
- /* Packet mode */
- [8] = { "8890218F", NULL },
- /* 56 kbit/s rate adaptation */
- [9] = { "9190A5", NULL },
- /* Unrestricted digital information with tones/announcements */
- [16] = { "8090A3", "9181" },
- /* Telephony */
- [17] = { "9090A3", "9184" },
- /* Group 2/3 facsimile */
- [18] = { "8890", "91A1" },
- /* Group 4 facsimile Class 1 */
- [19] = { "8890", "91A4" },
- /* Teletex service basic and mixed mode
- and Group 4 facsimile service Classes II and III */
- [20] = { "8890", "91A8" },
- /* Teletex service basic and processable mode */
- [21] = { "8890", "91B1" },
- /* Teletex service basic mode */
- [22] = { "8890", "91B2" },
- /* International interworking for Videotex */
- [23] = { "8890", "91B5" },
- /* Telex */
- [24] = { "8890", "91B8" },
- /* Message Handling Systems in accordance with X.400 */
- [25] = { "8890", "91C1" },
- /* OSI application in accordance with X.200 */
- [26] = { "9190A5", "9181" },
- /* 7 kHz telephony */
- [27] = { "9190A5", "916001" },
- /* Video telephony, first connection */
- [28] = { "8890", "916002" },
- /* Video telephony, second connection */
-};
-
-/*
- * helper functions
- * ================
- */
-
-/*
- * emit unsupported parameter warning
- */
-static inline void ignore_cstruct_param(struct cardstate *cs, _cstruct param,
- char *msgname, char *paramname)
-{
- if (param && *param)
- dev_warn(cs->dev, "%s: ignoring unsupported parameter: %s\n",
- msgname, paramname);
-}
-
-/*
- * convert an IE from Gigaset hex string to ETSI binary representation
- * including length byte
- * return value: result length, -1 on error
- */
-static int encode_ie(char *in, u8 *out, int maxlen)
-{
- int l = 0;
- while (*in) {
- if (!isxdigit(in[0]) || !isxdigit(in[1]) || l >= maxlen)
- return -1;
- out[++l] = (hex_to_bin(in[0]) << 4) + hex_to_bin(in[1]);
- in += 2;
- }
- out[0] = l;
- return l;
-}
-
-/*
- * convert an IE from ETSI binary representation including length byte
- * to Gigaset hex string
- */
-static void decode_ie(u8 *in, char *out)
-{
- int i = *in;
- while (i-- > 0) {
- /* ToDo: conversion to upper case necessary? */
- *out++ = toupper(hex_asc_hi(*++in));
- *out++ = toupper(hex_asc_lo(*in));
- }
-}
-
-/*
- * retrieve application data structure for an application ID
- */
-static inline struct gigaset_capi_appl *
-get_appl(struct gigaset_capi_ctr *iif, u16 appl)
-{
- struct gigaset_capi_appl *ap;
-
- list_for_each_entry(ap, &iif->appls, ctrlist)
- if (ap->id == appl)
- return ap;
- return NULL;
-}
-
-/*
- * dump CAPI message to kernel messages for debugging
- */
-static inline void dump_cmsg(enum debuglevel level, const char *tag, _cmsg *p)
-{
-#ifdef CONFIG_GIGASET_DEBUG
- /* dump at most 20 messages in 20 secs */
- static DEFINE_RATELIMIT_STATE(msg_dump_ratelimit, 20 * HZ, 20);
- _cdebbuf *cdb;
-
- if (!(gigaset_debuglevel & level))
- return;
- if (!___ratelimit(&msg_dump_ratelimit, tag))
- return;
-
- cdb = capi_cmsg2str(p);
- if (cdb) {
- gig_dbg(level, "%s: [%d] %s", tag, p->ApplId, cdb->buf);
- cdebbuf_free(cdb);
- } else {
- gig_dbg(level, "%s: [%d] %s", tag, p->ApplId,
- capi_cmd2str(p->Command, p->Subcommand));
- }
-#endif
-}
-
-static inline void dump_rawmsg(enum debuglevel level, const char *tag,
- unsigned char *data)
-{
-#ifdef CONFIG_GIGASET_DEBUG
- char *dbgline;
- int i, l;
-
- if (!(gigaset_debuglevel & level))
- return;
-
- l = CAPIMSG_LEN(data);
- if (l < 12) {
- gig_dbg(level, "%s: ??? LEN=%04d", tag, l);
- return;
- }
- gig_dbg(level, "%s: 0x%02x:0x%02x: ID=%03d #0x%04x LEN=%04d NCCI=0x%x",
- tag, CAPIMSG_COMMAND(data), CAPIMSG_SUBCOMMAND(data),
- CAPIMSG_APPID(data), CAPIMSG_MSGID(data), l,
- CAPIMSG_CONTROL(data));
- l -= 12;
- dbgline = kmalloc(3 * l, GFP_ATOMIC);
- if (!dbgline)
- return;
- for (i = 0; i < l; i++) {
- dbgline[3 * i] = hex_asc_hi(data[12 + i]);
- dbgline[3 * i + 1] = hex_asc_lo(data[12 + i]);
- dbgline[3 * i + 2] = ' ';
- }
- dbgline[3 * l - 1] = '\0';
- gig_dbg(level, " %s", dbgline);
- kfree(dbgline);
- if (CAPIMSG_COMMAND(data) == CAPI_DATA_B3 &&
- (CAPIMSG_SUBCOMMAND(data) == CAPI_REQ ||
- CAPIMSG_SUBCOMMAND(data) == CAPI_IND)) {
- l = CAPIMSG_DATALEN(data);
- gig_dbg(level, " DataLength=%d", l);
- if (l <= 0 || !(gigaset_debuglevel & DEBUG_LLDATA))
- return;
- if (l > 64)
- l = 64; /* arbitrary limit */
- dbgline = kmalloc(3 * l, GFP_ATOMIC);
- if (!dbgline)
- return;
- data += CAPIMSG_LEN(data);
- for (i = 0; i < l; i++) {
- dbgline[3 * i] = hex_asc_hi(data[i]);
- dbgline[3 * i + 1] = hex_asc_lo(data[i]);
- dbgline[3 * i + 2] = ' ';
- }
- dbgline[3 * l - 1] = '\0';
- gig_dbg(level, " %s", dbgline);
- kfree(dbgline);
- }
-#endif
-}
-
-/*
- * format CAPI IE as string
- */
-
-static const char *format_ie(const char *ie)
-{
- static char result[3 * MAX_FMT_IE_LEN];
- int len, count;
- char *pout = result;
-
- if (!ie)
- return "NULL";
-
- count = len = ie[0];
- if (count > MAX_FMT_IE_LEN)
- count = MAX_FMT_IE_LEN - 1;
- while (count--) {
- *pout++ = hex_asc_hi(*++ie);
- *pout++ = hex_asc_lo(*ie);
- *pout++ = ' ';
- }
- if (len > MAX_FMT_IE_LEN) {
- *pout++ = '.';
- *pout++ = '.';
- *pout++ = '.';
- }
- *--pout = 0;
- return result;
-}
-
-/*
- * emit DATA_B3_CONF message
- */
-static void send_data_b3_conf(struct cardstate *cs, struct capi_ctr *ctr,
- u16 appl, u16 msgid, int channel,
- u16 handle, u16 info)
-{
- struct sk_buff *cskb;
- u8 *msg;
-
- cskb = alloc_skb(CAPI_DATA_B3_CONF_LEN, GFP_ATOMIC);
- if (!cskb) {
- dev_err(cs->dev, "%s: out of memory\n", __func__);
- return;
- }
- /* frequent message, avoid _cmsg overhead */
- msg = __skb_put(cskb, CAPI_DATA_B3_CONF_LEN);
- CAPIMSG_SETLEN(msg, CAPI_DATA_B3_CONF_LEN);
- CAPIMSG_SETAPPID(msg, appl);
- CAPIMSG_SETCOMMAND(msg, CAPI_DATA_B3);
- CAPIMSG_SETSUBCOMMAND(msg, CAPI_CONF);
- CAPIMSG_SETMSGID(msg, msgid);
- CAPIMSG_SETCONTROLLER(msg, ctr->cnr);
- CAPIMSG_SETPLCI_PART(msg, channel);
- CAPIMSG_SETNCCI_PART(msg, 1);
- CAPIMSG_SETHANDLE_CONF(msg, handle);
- CAPIMSG_SETINFO_CONF(msg, info);
-
- /* emit message */
- dump_rawmsg(DEBUG_MCMD, __func__, msg);
- capi_ctr_handle_message(ctr, appl, cskb);
-}
-
-
-/*
- * driver interface functions
- * ==========================
- */
-
-/**
- * gigaset_skb_sent() - acknowledge transmission of outgoing skb
- * @bcs: B channel descriptor structure.
- * @skb: sent data.
- *
- * Called by hardware module {bas,ser,usb}_gigaset when the data in a
- * skb has been successfully sent, for signalling completion to the LL.
- */
-void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *dskb)
-{
- struct cardstate *cs = bcs->cs;
- struct gigaset_capi_ctr *iif = cs->iif;
- struct gigaset_capi_appl *ap = bcs->ap;
- unsigned char *req = skb_mac_header(dskb);
- u16 flags;
-
- /* update statistics */
- ++bcs->trans_up;
-
- if (!ap) {
- gig_dbg(DEBUG_MCMD, "%s: application gone", __func__);
- return;
- }
-
- /* don't send further B3 messages if disconnected */
- if (bcs->apconnstate < APCONN_ACTIVE) {
- gig_dbg(DEBUG_MCMD, "%s: disconnected", __func__);
- return;
- }
-
- /*
- * send DATA_B3_CONF if "delivery confirmation" bit was set in request;
- * otherwise it has already been sent by do_data_b3_req()
- */
- flags = CAPIMSG_FLAGS(req);
- if (flags & CAPI_FLAGS_DELIVERY_CONFIRMATION)
- send_data_b3_conf(cs, &iif->ctr, ap->id, CAPIMSG_MSGID(req),
- bcs->channel + 1, CAPIMSG_HANDLE_REQ(req),
- (flags & ~CAPI_FLAGS_DELIVERY_CONFIRMATION) ?
- CapiFlagsNotSupportedByProtocol :
- CAPI_NOERROR);
-}
-EXPORT_SYMBOL_GPL(gigaset_skb_sent);
-
-/**
- * gigaset_skb_rcvd() - pass received skb to LL
- * @bcs: B channel descriptor structure.
- * @skb: received data.
- *
- * Called by hardware module {bas,ser,usb}_gigaset when user data has
- * been successfully received, for passing to the LL.
- * Warning: skb must not be accessed anymore!
- */
-void gigaset_skb_rcvd(struct bc_state *bcs, struct sk_buff *skb)
-{
- struct cardstate *cs = bcs->cs;
- struct gigaset_capi_ctr *iif = cs->iif;
- struct gigaset_capi_appl *ap = bcs->ap;
- int len = skb->len;
-
- /* update statistics */
- bcs->trans_down++;
-
- if (!ap) {
- gig_dbg(DEBUG_MCMD, "%s: application gone", __func__);
- dev_kfree_skb_any(skb);
- return;
- }
-
- /* don't send further B3 messages if disconnected */
- if (bcs->apconnstate < APCONN_ACTIVE) {
- gig_dbg(DEBUG_MCMD, "%s: disconnected", __func__);
- dev_kfree_skb_any(skb);
- return;
- }
-
- /*
- * prepend DATA_B3_IND message to payload
- * Parameters: NCCI = 1, all others 0/unused
- * frequent message, avoid _cmsg overhead
- */
- skb_push(skb, CAPI_DATA_B3_REQ_LEN);
- CAPIMSG_SETLEN(skb->data, CAPI_DATA_B3_REQ_LEN);
- CAPIMSG_SETAPPID(skb->data, ap->id);
- CAPIMSG_SETCOMMAND(skb->data, CAPI_DATA_B3);
- CAPIMSG_SETSUBCOMMAND(skb->data, CAPI_IND);
- CAPIMSG_SETMSGID(skb->data, ap->nextMessageNumber++);
- CAPIMSG_SETCONTROLLER(skb->data, iif->ctr.cnr);
- CAPIMSG_SETPLCI_PART(skb->data, bcs->channel + 1);
- CAPIMSG_SETNCCI_PART(skb->data, 1);
- /* Data parameter not used */
- CAPIMSG_SETDATALEN(skb->data, len);
- /* Data handle parameter not used */
- CAPIMSG_SETFLAGS(skb->data, 0);
- /* Data64 parameter not present */
-
- /* emit message */
- dump_rawmsg(DEBUG_MCMD, __func__, skb->data);
- capi_ctr_handle_message(&iif->ctr, ap->id, skb);
-}
-EXPORT_SYMBOL_GPL(gigaset_skb_rcvd);
-
-/**
- * gigaset_isdn_rcv_err() - signal receive error
- * @bcs: B channel descriptor structure.
- *
- * Called by hardware module {bas,ser,usb}_gigaset when a receive error
- * has occurred, for signalling to the LL.
- */
-void gigaset_isdn_rcv_err(struct bc_state *bcs)
-{
- /* if currently ignoring packets, just count down */
- if (bcs->ignore) {
- bcs->ignore--;
- return;
- }
-
- /* update statistics */
- bcs->corrupted++;
-
- /* ToDo: signal error -> LL */
-}
-EXPORT_SYMBOL_GPL(gigaset_isdn_rcv_err);
-
-/**
- * gigaset_isdn_icall() - signal incoming call
- * @at_state: connection state structure.
- *
- * Called by main module at tasklet level to notify the LL that an incoming
- * call has been received. @at_state contains the parameters of the call.
- *
- * Return value: call disposition (ICALL_*)
- */
-int gigaset_isdn_icall(struct at_state_t *at_state)
-{
- struct cardstate *cs = at_state->cs;
- struct bc_state *bcs = at_state->bcs;
- struct gigaset_capi_ctr *iif = cs->iif;
- struct gigaset_capi_appl *ap;
- u32 actCIPmask;
- struct sk_buff *skb;
- unsigned int msgsize;
- unsigned long flags;
- int i;
-
- /*
- * ToDo: signal calls without a free B channel, too
- * (requires a u8 handle for the at_state structure that can
- * be stored in the PLCI and used in the CONNECT_RESP message
- * handler to retrieve it)
- */
- if (!bcs)
- return ICALL_IGNORE;
-
- /* prepare CONNECT_IND message, using B channel number as PLCI */
- capi_cmsg_header(&iif->hcmsg, 0, CAPI_CONNECT, CAPI_IND, 0,
- iif->ctr.cnr | ((bcs->channel + 1) << 8));
-
- /* minimum size, all structs empty */
- msgsize = CAPI_CONNECT_IND_BASELEN;
-
- /* Bearer Capability (mandatory) */
- if (at_state->str_var[STR_ZBC]) {
- /* pass on BC from Gigaset */
- if (encode_ie(at_state->str_var[STR_ZBC], iif->bc_buf,
- MAX_BC_OCTETS) < 0) {
- dev_warn(cs->dev, "RING ignored - bad BC %s\n",
- at_state->str_var[STR_ZBC]);
- return ICALL_IGNORE;
- }
-
- /* look up corresponding CIP value */
- iif->hcmsg.CIPValue = 0; /* default if nothing found */
- for (i = 0; i < ARRAY_SIZE(cip2bchlc); i++)
- if (cip2bchlc[i].bc != NULL &&
- cip2bchlc[i].hlc == NULL &&
- !strcmp(cip2bchlc[i].bc,
- at_state->str_var[STR_ZBC])) {
- iif->hcmsg.CIPValue = i;
- break;
- }
- } else {
- /* no BC (internal call): assume CIP 1 (speech, A-law) */
- iif->hcmsg.CIPValue = 1;
- encode_ie(cip2bchlc[1].bc, iif->bc_buf, MAX_BC_OCTETS);
- }
- iif->hcmsg.BC = iif->bc_buf;
- msgsize += iif->hcmsg.BC[0];
-
- /* High Layer Compatibility (optional) */
- if (at_state->str_var[STR_ZHLC]) {
- /* pass on HLC from Gigaset */
- if (encode_ie(at_state->str_var[STR_ZHLC], iif->hlc_buf,
- MAX_HLC_OCTETS) < 0) {
- dev_warn(cs->dev, "RING ignored - bad HLC %s\n",
- at_state->str_var[STR_ZHLC]);
- return ICALL_IGNORE;
- }
- iif->hcmsg.HLC = iif->hlc_buf;
- msgsize += iif->hcmsg.HLC[0];
-
- /* look up corresponding CIP value */
- /* keep BC based CIP value if none found */
- if (at_state->str_var[STR_ZBC])
- for (i = 0; i < ARRAY_SIZE(cip2bchlc); i++)
- if (cip2bchlc[i].hlc != NULL &&
- !strcmp(cip2bchlc[i].hlc,
- at_state->str_var[STR_ZHLC]) &&
- !strcmp(cip2bchlc[i].bc,
- at_state->str_var[STR_ZBC])) {
- iif->hcmsg.CIPValue = i;
- break;
- }
- }
-
- /* Called Party Number (optional) */
- if (at_state->str_var[STR_ZCPN]) {
- i = strlen(at_state->str_var[STR_ZCPN]);
- if (i > MAX_NUMBER_DIGITS) {
- dev_warn(cs->dev, "RING ignored - bad number %s\n",
- at_state->str_var[STR_ZBC]);
- return ICALL_IGNORE;
- }
- iif->cdpty_buf[0] = i + 1;
- iif->cdpty_buf[1] = 0x80; /* type / numbering plan unknown */
- memcpy(iif->cdpty_buf + 2, at_state->str_var[STR_ZCPN], i);
- iif->hcmsg.CalledPartyNumber = iif->cdpty_buf;
- msgsize += iif->hcmsg.CalledPartyNumber[0];
- }
-
- /* Calling Party Number (optional) */
- if (at_state->str_var[STR_NMBR]) {
- i = strlen(at_state->str_var[STR_NMBR]);
- if (i > MAX_NUMBER_DIGITS) {
- dev_warn(cs->dev, "RING ignored - bad number %s\n",
- at_state->str_var[STR_ZBC]);
- return ICALL_IGNORE;
- }
- iif->cgpty_buf[0] = i + 2;
- iif->cgpty_buf[1] = 0x00; /* type / numbering plan unknown */
- iif->cgpty_buf[2] = 0x80; /* pres. allowed, not screened */
- memcpy(iif->cgpty_buf + 3, at_state->str_var[STR_NMBR], i);
- iif->hcmsg.CallingPartyNumber = iif->cgpty_buf;
- msgsize += iif->hcmsg.CallingPartyNumber[0];
- }
-
- /* remaining parameters (not supported, always left NULL):
- * - CalledPartySubaddress
- * - CallingPartySubaddress
- * - AdditionalInfo
- * - BChannelinformation
- * - Keypadfacility
- * - Useruserdata
- * - Facilitydataarray
- */
-
- gig_dbg(DEBUG_CMD, "icall: PLCI %x CIP %d BC %s",
- iif->hcmsg.adr.adrPLCI, iif->hcmsg.CIPValue,
- format_ie(iif->hcmsg.BC));
- gig_dbg(DEBUG_CMD, "icall: HLC %s",
- format_ie(iif->hcmsg.HLC));
- gig_dbg(DEBUG_CMD, "icall: CgPty %s",
- format_ie(iif->hcmsg.CallingPartyNumber));
- gig_dbg(DEBUG_CMD, "icall: CdPty %s",
- format_ie(iif->hcmsg.CalledPartyNumber));
-
- /* scan application list for matching listeners */
- spin_lock_irqsave(&bcs->aplock, flags);
- if (bcs->ap != NULL || bcs->apconnstate != APCONN_NONE) {
- dev_warn(cs->dev, "%s: channel not properly cleared (%p/%d)\n",
- __func__, bcs->ap, bcs->apconnstate);
- bcs->ap = NULL;
- bcs->apconnstate = APCONN_NONE;
- }
- spin_unlock_irqrestore(&bcs->aplock, flags);
- actCIPmask = 1 | (1 << iif->hcmsg.CIPValue);
- list_for_each_entry(ap, &iif->appls, ctrlist)
- if (actCIPmask & ap->listenCIPmask) {
- /* build CONNECT_IND message for this application */
- iif->hcmsg.ApplId = ap->id;
- iif->hcmsg.Messagenumber = ap->nextMessageNumber++;
-
- skb = alloc_skb(msgsize, GFP_ATOMIC);
- if (!skb) {
- dev_err(cs->dev, "%s: out of memory\n",
- __func__);
- break;
- }
- capi_cmsg2message(&iif->hcmsg, __skb_put(skb, msgsize));
- dump_cmsg(DEBUG_CMD, __func__, &iif->hcmsg);
-
- /* add to listeners on this B channel, update state */
- spin_lock_irqsave(&bcs->aplock, flags);
- ap->bcnext = bcs->ap;
- bcs->ap = ap;
- bcs->chstate |= CHS_NOTIFY_LL;
- bcs->apconnstate = APCONN_SETUP;
- spin_unlock_irqrestore(&bcs->aplock, flags);
-
- /* emit message */
- capi_ctr_handle_message(&iif->ctr, ap->id, skb);
- }
-
- /*
- * Return "accept" if any listeners.
- * Gigaset will send ALERTING.
- * There doesn't seem to be a way to avoid this.
- */
- return bcs->ap ? ICALL_ACCEPT : ICALL_IGNORE;
-}
-
-/*
- * send a DISCONNECT_IND message to an application
- * does not sleep, clobbers the controller's hcmsg structure
- */
-static void send_disconnect_ind(struct bc_state *bcs,
- struct gigaset_capi_appl *ap, u16 reason)
-{
- struct cardstate *cs = bcs->cs;
- struct gigaset_capi_ctr *iif = cs->iif;
- struct sk_buff *skb;
-
- if (bcs->apconnstate == APCONN_NONE)
- return;
-
- capi_cmsg_header(&iif->hcmsg, ap->id, CAPI_DISCONNECT, CAPI_IND,
- ap->nextMessageNumber++,
- iif->ctr.cnr | ((bcs->channel + 1) << 8));
- iif->hcmsg.Reason = reason;
- skb = alloc_skb(CAPI_DISCONNECT_IND_LEN, GFP_ATOMIC);
- if (!skb) {
- dev_err(cs->dev, "%s: out of memory\n", __func__);
- return;
- }
- capi_cmsg2message(&iif->hcmsg, __skb_put(skb, CAPI_DISCONNECT_IND_LEN));
- dump_cmsg(DEBUG_CMD, __func__, &iif->hcmsg);
- capi_ctr_handle_message(&iif->ctr, ap->id, skb);
-}
-
-/*
- * send a DISCONNECT_B3_IND message to an application
- * Parameters: NCCI = 1, NCPI empty, Reason_B3 = 0
- * does not sleep, clobbers the controller's hcmsg structure
- */
-static void send_disconnect_b3_ind(struct bc_state *bcs,
- struct gigaset_capi_appl *ap)
-{
- struct cardstate *cs = bcs->cs;
- struct gigaset_capi_ctr *iif = cs->iif;
- struct sk_buff *skb;
-
- /* nothing to do if no logical connection active */
- if (bcs->apconnstate < APCONN_ACTIVE)
- return;
- bcs->apconnstate = APCONN_SETUP;
-
- capi_cmsg_header(&iif->hcmsg, ap->id, CAPI_DISCONNECT_B3, CAPI_IND,
- ap->nextMessageNumber++,
- iif->ctr.cnr | ((bcs->channel + 1) << 8) | (1 << 16));
- skb = alloc_skb(CAPI_DISCONNECT_B3_IND_BASELEN, GFP_ATOMIC);
- if (!skb) {
- dev_err(cs->dev, "%s: out of memory\n", __func__);
- return;
- }
- capi_cmsg2message(&iif->hcmsg,
- __skb_put(skb, CAPI_DISCONNECT_B3_IND_BASELEN));
- dump_cmsg(DEBUG_CMD, __func__, &iif->hcmsg);
- capi_ctr_handle_message(&iif->ctr, ap->id, skb);
-}
-
-/**
- * gigaset_isdn_connD() - signal D channel connect
- * @bcs: B channel descriptor structure.
- *
- * Called by main module at tasklet level to notify the LL that the D channel
- * connection has been established.
- */
-void gigaset_isdn_connD(struct bc_state *bcs)
-{
- struct cardstate *cs = bcs->cs;
- struct gigaset_capi_ctr *iif = cs->iif;
- struct gigaset_capi_appl *ap;
- struct sk_buff *skb;
- unsigned int msgsize;
- unsigned long flags;
-
- spin_lock_irqsave(&bcs->aplock, flags);
- ap = bcs->ap;
- if (!ap) {
- spin_unlock_irqrestore(&bcs->aplock, flags);
- gig_dbg(DEBUG_CMD, "%s: application gone", __func__);
- return;
- }
- if (bcs->apconnstate == APCONN_NONE) {
- spin_unlock_irqrestore(&bcs->aplock, flags);
- dev_warn(cs->dev, "%s: application %u not connected\n",
- __func__, ap->id);
- return;
- }
- spin_unlock_irqrestore(&bcs->aplock, flags);
- while (ap->bcnext) {
- /* this should never happen */
- dev_warn(cs->dev, "%s: dropping extra application %u\n",
- __func__, ap->bcnext->id);
- send_disconnect_ind(bcs, ap->bcnext,
- CapiCallGivenToOtherApplication);
- ap->bcnext = ap->bcnext->bcnext;
- }
-
- /* prepare CONNECT_ACTIVE_IND message
- * Note: LLC not supported by device
- */
- capi_cmsg_header(&iif->hcmsg, ap->id, CAPI_CONNECT_ACTIVE, CAPI_IND,
- ap->nextMessageNumber++,
- iif->ctr.cnr | ((bcs->channel + 1) << 8));
-
- /* minimum size, all structs empty */
- msgsize = CAPI_CONNECT_ACTIVE_IND_BASELEN;
-
- /* ToDo: set parameter: Connected number
- * (requires ev-layer state machine extension to collect
- * ZCON device reply)
- */
-
- /* build and emit CONNECT_ACTIVE_IND message */
- skb = alloc_skb(msgsize, GFP_ATOMIC);
- if (!skb) {
- dev_err(cs->dev, "%s: out of memory\n", __func__);
- return;
- }
- capi_cmsg2message(&iif->hcmsg, __skb_put(skb, msgsize));
- dump_cmsg(DEBUG_CMD, __func__, &iif->hcmsg);
- capi_ctr_handle_message(&iif->ctr, ap->id, skb);
-}
-
-/**
- * gigaset_isdn_hupD() - signal D channel hangup
- * @bcs: B channel descriptor structure.
- *
- * Called by main module at tasklet level to notify the LL that the D channel
- * connection has been shut down.
- */
-void gigaset_isdn_hupD(struct bc_state *bcs)
-{
- struct gigaset_capi_appl *ap;
- unsigned long flags;
-
- /*
- * ToDo: pass on reason code reported by device
- * (requires ev-layer state machine extension to collect
- * ZCAU device reply)
- */
- spin_lock_irqsave(&bcs->aplock, flags);
- while (bcs->ap != NULL) {
- ap = bcs->ap;
- bcs->ap = ap->bcnext;
- spin_unlock_irqrestore(&bcs->aplock, flags);
- send_disconnect_b3_ind(bcs, ap);
- send_disconnect_ind(bcs, ap, 0);
- spin_lock_irqsave(&bcs->aplock, flags);
- }
- bcs->apconnstate = APCONN_NONE;
- spin_unlock_irqrestore(&bcs->aplock, flags);
-}
-
-/**
- * gigaset_isdn_connB() - signal B channel connect
- * @bcs: B channel descriptor structure.
- *
- * Called by main module at tasklet level to notify the LL that the B channel
- * connection has been established.
- */
-void gigaset_isdn_connB(struct bc_state *bcs)
-{
- struct cardstate *cs = bcs->cs;
- struct gigaset_capi_ctr *iif = cs->iif;
- struct gigaset_capi_appl *ap;
- struct sk_buff *skb;
- unsigned long flags;
- unsigned int msgsize;
- u8 command;
-
- spin_lock_irqsave(&bcs->aplock, flags);
- ap = bcs->ap;
- if (!ap) {
- spin_unlock_irqrestore(&bcs->aplock, flags);
- gig_dbg(DEBUG_CMD, "%s: application gone", __func__);
- return;
- }
- if (!bcs->apconnstate) {
- spin_unlock_irqrestore(&bcs->aplock, flags);
- dev_warn(cs->dev, "%s: application %u not connected\n",
- __func__, ap->id);
- return;
- }
-
- /*
- * emit CONNECT_B3_ACTIVE_IND if we already got CONNECT_B3_REQ;
- * otherwise we have to emit CONNECT_B3_IND first, and follow up with
- * CONNECT_B3_ACTIVE_IND in reply to CONNECT_B3_RESP
- * Parameters in both cases always: NCCI = 1, NCPI empty
- */
- if (bcs->apconnstate >= APCONN_ACTIVE) {
- command = CAPI_CONNECT_B3_ACTIVE;
- msgsize = CAPI_CONNECT_B3_ACTIVE_IND_BASELEN;
- } else {
- command = CAPI_CONNECT_B3;
- msgsize = CAPI_CONNECT_B3_IND_BASELEN;
- }
- bcs->apconnstate = APCONN_ACTIVE;
-
- spin_unlock_irqrestore(&bcs->aplock, flags);
-
- while (ap->bcnext) {
- /* this should never happen */
- dev_warn(cs->dev, "%s: dropping extra application %u\n",
- __func__, ap->bcnext->id);
- send_disconnect_ind(bcs, ap->bcnext,
- CapiCallGivenToOtherApplication);
- ap->bcnext = ap->bcnext->bcnext;
- }
-
- capi_cmsg_header(&iif->hcmsg, ap->id, command, CAPI_IND,
- ap->nextMessageNumber++,
- iif->ctr.cnr | ((bcs->channel + 1) << 8) | (1 << 16));
- skb = alloc_skb(msgsize, GFP_ATOMIC);
- if (!skb) {
- dev_err(cs->dev, "%s: out of memory\n", __func__);
- return;
- }
- capi_cmsg2message(&iif->hcmsg, __skb_put(skb, msgsize));
- dump_cmsg(DEBUG_CMD, __func__, &iif->hcmsg);
- capi_ctr_handle_message(&iif->ctr, ap->id, skb);
-}
-
-/**
- * gigaset_isdn_hupB() - signal B channel hangup
- * @bcs: B channel descriptor structure.
- *
- * Called by main module to notify the LL that the B channel connection has
- * been shut down.
- */
-void gigaset_isdn_hupB(struct bc_state *bcs)
-{
- struct gigaset_capi_appl *ap = bcs->ap;
-
- /* ToDo: assure order of DISCONNECT_B3_IND and DISCONNECT_IND ? */
-
- if (!ap) {
- gig_dbg(DEBUG_CMD, "%s: application gone", __func__);
- return;
- }
-
- send_disconnect_b3_ind(bcs, ap);
-}
-
-/**
- * gigaset_isdn_start() - signal device availability
- * @cs: device descriptor structure.
- *
- * Called by main module to notify the LL that the device is available for
- * use.
- */
-void gigaset_isdn_start(struct cardstate *cs)
-{
- struct gigaset_capi_ctr *iif = cs->iif;
-
- /* fill profile data: manufacturer name */
- strcpy(iif->ctr.manu, "Siemens");
- /* CAPI and device version */
- iif->ctr.version.majorversion = 2; /* CAPI 2.0 */
- iif->ctr.version.minorversion = 0;
- /* ToDo: check/assert cs->gotfwver? */
- iif->ctr.version.majormanuversion = cs->fwver[0];
- iif->ctr.version.minormanuversion = cs->fwver[1];
- /* number of B channels supported */
- iif->ctr.profile.nbchannel = cs->channels;
- /* global options: internal controller, supplementary services */
- iif->ctr.profile.goptions = 0x11;
- /* B1 protocols: 64 kbit/s HDLC or transparent */
- iif->ctr.profile.support1 = 0x03;
- /* B2 protocols: transparent only */
- /* ToDo: X.75 SLP ? */
- iif->ctr.profile.support2 = 0x02;
- /* B3 protocols: transparent only */
- iif->ctr.profile.support3 = 0x01;
- /* no serial number */
- strcpy(iif->ctr.serial, "0");
- capi_ctr_ready(&iif->ctr);
-}
-
-/**
- * gigaset_isdn_stop() - signal device unavailability
- * @cs: device descriptor structure.
- *
- * Called by main module to notify the LL that the device is no longer
- * available for use.
- */
-void gigaset_isdn_stop(struct cardstate *cs)
-{
- struct gigaset_capi_ctr *iif = cs->iif;
- capi_ctr_down(&iif->ctr);
-}
-
-/*
- * kernel CAPI callback methods
- * ============================
- */
-
-/*
- * register CAPI application
- */
-static void gigaset_register_appl(struct capi_ctr *ctr, u16 appl,
- capi_register_params *rp)
-{
- struct gigaset_capi_ctr *iif
- = container_of(ctr, struct gigaset_capi_ctr, ctr);
- struct cardstate *cs = ctr->driverdata;
- struct gigaset_capi_appl *ap;
-
- gig_dbg(DEBUG_CMD, "%s [%u] l3cnt=%u blkcnt=%u blklen=%u",
- __func__, appl, rp->level3cnt, rp->datablkcnt, rp->datablklen);
-
- list_for_each_entry(ap, &iif->appls, ctrlist)
- if (ap->id == appl) {
- dev_notice(cs->dev,
- "application %u already registered\n", appl);
- return;
- }
-
- ap = kzalloc(sizeof(*ap), GFP_KERNEL);
- if (!ap) {
- dev_err(cs->dev, "%s: out of memory\n", __func__);
- return;
- }
- ap->id = appl;
- ap->rp = *rp;
-
- list_add(&ap->ctrlist, &iif->appls);
- dev_info(cs->dev, "application %u registered\n", ap->id);
-}
-
-/*
- * remove CAPI application from channel
- * helper function to keep indentation levels down and stay in 80 columns
- */
-
-static inline void remove_appl_from_channel(struct bc_state *bcs,
- struct gigaset_capi_appl *ap)
-{
- struct cardstate *cs = bcs->cs;
- struct gigaset_capi_appl *bcap;
- unsigned long flags;
- int prevconnstate;
-
- spin_lock_irqsave(&bcs->aplock, flags);
- bcap = bcs->ap;
- if (bcap == NULL) {
- spin_unlock_irqrestore(&bcs->aplock, flags);
- return;
- }
-
- /* check first application on channel */
- if (bcap == ap) {
- bcs->ap = ap->bcnext;
- if (bcs->ap != NULL) {
- spin_unlock_irqrestore(&bcs->aplock, flags);
- return;
- }
-
- /* none left, clear channel state */
- prevconnstate = bcs->apconnstate;
- bcs->apconnstate = APCONN_NONE;
- spin_unlock_irqrestore(&bcs->aplock, flags);
-
- if (prevconnstate == APCONN_ACTIVE) {
- dev_notice(cs->dev, "%s: hanging up channel %u\n",
- __func__, bcs->channel);
- gigaset_add_event(cs, &bcs->at_state,
- EV_HUP, NULL, 0, NULL);
- gigaset_schedule_event(cs);
- }
- return;
- }
-
- /* check remaining list */
- do {
- if (bcap->bcnext == ap) {
- bcap->bcnext = bcap->bcnext->bcnext;
- spin_unlock_irqrestore(&bcs->aplock, flags);
- return;
- }
- bcap = bcap->bcnext;
- } while (bcap != NULL);
- spin_unlock_irqrestore(&bcs->aplock, flags);
-}
-
-/*
- * release CAPI application
- */
-static void gigaset_release_appl(struct capi_ctr *ctr, u16 appl)
-{
- struct gigaset_capi_ctr *iif
- = container_of(ctr, struct gigaset_capi_ctr, ctr);
- struct cardstate *cs = iif->ctr.driverdata;
- struct gigaset_capi_appl *ap, *tmp;
- unsigned ch;
-
- gig_dbg(DEBUG_CMD, "%s [%u]", __func__, appl);
-
- list_for_each_entry_safe(ap, tmp, &iif->appls, ctrlist)
- if (ap->id == appl) {
- /* remove from any channels */
- for (ch = 0; ch < cs->channels; ch++)
- remove_appl_from_channel(&cs->bcs[ch], ap);
-
- /* remove from registration list */
- list_del(&ap->ctrlist);
- kfree(ap);
- dev_info(cs->dev, "application %u released\n", appl);
- }
-}
-
-/*
- * =====================================================================
- * outgoing CAPI message handler
- * =====================================================================
- */
-
-/*
- * helper function: emit reply message with given Info value
- */
-static void send_conf(struct gigaset_capi_ctr *iif,
- struct gigaset_capi_appl *ap,
- struct sk_buff *skb,
- u16 info)
-{
- /*
- * _CONF replies always only have NCCI and Info parameters
- * so they'll fit into the _REQ message skb
- */
- capi_cmsg_answer(&iif->acmsg);
- iif->acmsg.Info = info;
- capi_cmsg2message(&iif->acmsg, skb->data);
- __skb_trim(skb, CAPI_STDCONF_LEN);
- dump_cmsg(DEBUG_CMD, __func__, &iif->acmsg);
- capi_ctr_handle_message(&iif->ctr, ap->id, skb);
-}
-
-/*
- * process FACILITY_REQ message
- */
-static void do_facility_req(struct gigaset_capi_ctr *iif,
- struct gigaset_capi_appl *ap,
- struct sk_buff *skb)
-{
- struct cardstate *cs = iif->ctr.driverdata;
- _cmsg *cmsg = &iif->acmsg;
- struct sk_buff *cskb;
- u8 *pparam;
- unsigned int msgsize = CAPI_FACILITY_CONF_BASELEN;
- u16 function, info;
- static u8 confparam[10]; /* max. 9 octets + length byte */
-
- /* decode message */
- capi_message2cmsg(cmsg, skb->data);
- dump_cmsg(DEBUG_CMD, __func__, cmsg);
-
- /*
- * Facility Request Parameter is not decoded by capi_message2cmsg()
- * encoding depends on Facility Selector
- */
- switch (cmsg->FacilitySelector) {
- case CAPI_FACILITY_DTMF: /* ToDo */
- info = CapiFacilityNotSupported;
- confparam[0] = 2; /* length */
- /* DTMF information: Unknown DTMF request */
- capimsg_setu16(confparam, 1, 2);
- break;
-
- case CAPI_FACILITY_V42BIS: /* not supported */
- info = CapiFacilityNotSupported;
- confparam[0] = 2; /* length */
- /* V.42 bis information: not available */
- capimsg_setu16(confparam, 1, 1);
- break;
-
- case CAPI_FACILITY_SUPPSVC:
- /* decode Function parameter */
- pparam = cmsg->FacilityRequestParameter;
- if (pparam == NULL || pparam[0] < 2) {
- dev_notice(cs->dev, "%s: %s missing\n", "FACILITY_REQ",
- "Facility Request Parameter");
- send_conf(iif, ap, skb, CapiIllMessageParmCoding);
- return;
- }
- function = CAPIMSG_U16(pparam, 1);
- switch (function) {
- case CAPI_SUPPSVC_GETSUPPORTED:
- info = CapiSuccess;
- /* Supplementary Service specific parameter */
- confparam[3] = 6; /* length */
- /* Supplementary services info: Success */
- capimsg_setu16(confparam, 4, CapiSuccess);
- /* Supported Services: none */
- capimsg_setu32(confparam, 6, 0);
- break;
- case CAPI_SUPPSVC_LISTEN:
- if (pparam[0] < 7 || pparam[3] < 4) {
- dev_notice(cs->dev, "%s: %s missing\n",
- "FACILITY_REQ", "Notification Mask");
- send_conf(iif, ap, skb,
- CapiIllMessageParmCoding);
- return;
- }
- if (CAPIMSG_U32(pparam, 4) != 0) {
- dev_notice(cs->dev,
- "%s: unsupported supplementary service notification mask 0x%x\n",
- "FACILITY_REQ", CAPIMSG_U32(pparam, 4));
- info = CapiFacilitySpecificFunctionNotSupported;
- confparam[3] = 2; /* length */
- capimsg_setu16(confparam, 4,
- CapiSupplementaryServiceNotSupported);
- }
- info = CapiSuccess;
- confparam[3] = 2; /* length */
- capimsg_setu16(confparam, 4, CapiSuccess);
- break;
- /* ToDo: add supported services */
- default:
- dev_notice(cs->dev,
- "%s: unsupported supplementary service function 0x%04x\n",
- "FACILITY_REQ", function);
- info = CapiFacilitySpecificFunctionNotSupported;
- /* Supplementary Service specific parameter */
- confparam[3] = 2; /* length */
- /* Supplementary services info: not supported */
- capimsg_setu16(confparam, 4,
- CapiSupplementaryServiceNotSupported);
- }
-
- /* Facility confirmation parameter */
- confparam[0] = confparam[3] + 3; /* total length */
- /* Function: copy from _REQ message */
- capimsg_setu16(confparam, 1, function);
- /* Supplementary Service specific parameter already set above */
- break;
-
- case CAPI_FACILITY_WAKEUP: /* ToDo */
- info = CapiFacilityNotSupported;
- confparam[0] = 2; /* length */
- /* Number of accepted awake request parameters: 0 */
- capimsg_setu16(confparam, 1, 0);
- break;
-
- default:
- info = CapiFacilityNotSupported;
- confparam[0] = 0; /* empty struct */
- }
-
- /* send FACILITY_CONF with given Info and confirmation parameter */
- capi_cmsg_answer(cmsg);
- cmsg->Info = info;
- cmsg->FacilityConfirmationParameter = confparam;
- msgsize += confparam[0]; /* length */
- cskb = alloc_skb(msgsize, GFP_ATOMIC);
- if (!cskb) {
- dev_err(cs->dev, "%s: out of memory\n", __func__);
- return;
- }
- capi_cmsg2message(cmsg, __skb_put(cskb, msgsize));
- dump_cmsg(DEBUG_CMD, __func__, cmsg);
- capi_ctr_handle_message(&iif->ctr, ap->id, cskb);
-}
-
-
-/*
- * process LISTEN_REQ message
- * just store the masks in the application data structure
- */
-static void do_listen_req(struct gigaset_capi_ctr *iif,
- struct gigaset_capi_appl *ap,
- struct sk_buff *skb)
-{
- /* decode message */
- capi_message2cmsg(&iif->acmsg, skb->data);
- dump_cmsg(DEBUG_CMD, __func__, &iif->acmsg);
-
- /* store listening parameters */
- ap->listenInfoMask = iif->acmsg.InfoMask;
- ap->listenCIPmask = iif->acmsg.CIPmask;
- send_conf(iif, ap, skb, CapiSuccess);
-}
-
-/*
- * process ALERT_REQ message
- * nothing to do, Gigaset always alerts anyway
- */
-static void do_alert_req(struct gigaset_capi_ctr *iif,
- struct gigaset_capi_appl *ap,
- struct sk_buff *skb)
-{
- /* decode message */
- capi_message2cmsg(&iif->acmsg, skb->data);
- dump_cmsg(DEBUG_CMD, __func__, &iif->acmsg);
- send_conf(iif, ap, skb, CapiAlertAlreadySent);
-}
-
-/*
- * process CONNECT_REQ message
- * allocate a B channel, prepare dial commands, queue a DIAL event,
- * emit CONNECT_CONF reply
- */
-static void do_connect_req(struct gigaset_capi_ctr *iif,
- struct gigaset_capi_appl *ap,
- struct sk_buff *skb)
-{
- struct cardstate *cs = iif->ctr.driverdata;
- _cmsg *cmsg = &iif->acmsg;
- struct bc_state *bcs;
- char **commands;
- char *s;
- u8 *pp;
- unsigned long flags;
- int i, l, lbc, lhlc;
- u16 info;
-
- /* decode message */
- capi_message2cmsg(cmsg, skb->data);
- dump_cmsg(DEBUG_CMD, __func__, cmsg);
-
- /* get free B channel & construct PLCI */
- bcs = gigaset_get_free_channel(cs);
- if (!bcs) {
- dev_notice(cs->dev, "%s: no B channel available\n",
- "CONNECT_REQ");
- send_conf(iif, ap, skb, CapiNoPlciAvailable);
- return;
- }
- spin_lock_irqsave(&bcs->aplock, flags);
- if (bcs->ap != NULL || bcs->apconnstate != APCONN_NONE)
- dev_warn(cs->dev, "%s: channel not properly cleared (%p/%d)\n",
- __func__, bcs->ap, bcs->apconnstate);
- ap->bcnext = NULL;
- bcs->ap = ap;
- bcs->apconnstate = APCONN_SETUP;
- spin_unlock_irqrestore(&bcs->aplock, flags);
-
- bcs->rx_bufsize = ap->rp.datablklen;
- dev_kfree_skb(bcs->rx_skb);
- gigaset_new_rx_skb(bcs);
- cmsg->adr.adrPLCI |= (bcs->channel + 1) << 8;
-
- /* build command table */
- commands = kzalloc(AT_NUM * (sizeof *commands), GFP_KERNEL);
- if (!commands)
- goto oom;
-
- /* encode parameter: Called party number */
- pp = cmsg->CalledPartyNumber;
- if (pp == NULL || *pp == 0) {
- dev_notice(cs->dev, "%s: %s missing\n",
- "CONNECT_REQ", "Called party number");
- info = CapiIllMessageParmCoding;
- goto error;
- }
- l = *pp++;
- /* check type of number/numbering plan byte */
- switch (*pp) {
- case 0x80: /* unknown type / unknown numbering plan */
- case 0x81: /* unknown type / ISDN/Telephony numbering plan */
- break;
- default: /* others: warn about potential misinterpretation */
- dev_notice(cs->dev, "%s: %s type/plan 0x%02x unsupported\n",
- "CONNECT_REQ", "Called party number", *pp);
- }
- pp++;
- l--;
- /* translate "**" internal call prefix to CTP value */
- if (l >= 2 && pp[0] == '*' && pp[1] == '*') {
- s = "^SCTP=0\r";
- pp += 2;
- l -= 2;
- } else {
- s = "^SCTP=1\r";
- }
- commands[AT_TYPE] = kstrdup(s, GFP_KERNEL);
- if (!commands[AT_TYPE])
- goto oom;
- commands[AT_DIAL] = kmalloc(l + 3, GFP_KERNEL);
- if (!commands[AT_DIAL])
- goto oom;
- snprintf(commands[AT_DIAL], l + 3, "D%.*s\r", l, pp);
-
- /* encode parameter: Calling party number */
- pp = cmsg->CallingPartyNumber;
- if (pp != NULL && *pp > 0) {
- l = *pp++;
-
- /* check type of number/numbering plan byte */
- /* ToDo: allow for/handle Ext=1? */
- switch (*pp) {
- case 0x00: /* unknown type / unknown numbering plan */
- case 0x01: /* unknown type / ISDN/Telephony num. plan */
- break;
- default:
- dev_notice(cs->dev,
- "%s: %s type/plan 0x%02x unsupported\n",
- "CONNECT_REQ", "Calling party number", *pp);
- }
- pp++;
- l--;
-
- /* check presentation indicator */
- if (!l) {
- dev_notice(cs->dev, "%s: %s IE truncated\n",
- "CONNECT_REQ", "Calling party number");
- info = CapiIllMessageParmCoding;
- goto error;
- }
- switch (*pp & 0xfc) { /* ignore Screening indicator */
- case 0x80: /* Presentation allowed */
- s = "^SCLIP=1\r";
- break;
- case 0xa0: /* Presentation restricted */
- s = "^SCLIP=0\r";
- break;
- default:
- dev_notice(cs->dev, "%s: invalid %s 0x%02x\n",
- "CONNECT_REQ",
- "Presentation/Screening indicator",
- *pp);
- s = "^SCLIP=1\r";
- }
- commands[AT_CLIP] = kstrdup(s, GFP_KERNEL);
- if (!commands[AT_CLIP])
- goto oom;
- pp++;
- l--;
-
- if (l) {
- /* number */
- commands[AT_MSN] = kmalloc(l + 8, GFP_KERNEL);
- if (!commands[AT_MSN])
- goto oom;
- snprintf(commands[AT_MSN], l + 8, "^SMSN=%*s\r", l, pp);
- }
- }
-
- /* check parameter: CIP Value */
- if (cmsg->CIPValue >= ARRAY_SIZE(cip2bchlc) ||
- (cmsg->CIPValue > 0 && cip2bchlc[cmsg->CIPValue].bc == NULL)) {
- dev_notice(cs->dev, "%s: unknown CIP value %d\n",
- "CONNECT_REQ", cmsg->CIPValue);
- info = CapiCipValueUnknown;
- goto error;
- }
-
- /*
- * check/encode parameters: BC & HLC
- * must be encoded together as device doesn't accept HLC separately
- * explicit parameters override values derived from CIP
- */
-
- /* determine lengths */
- if (cmsg->BC && cmsg->BC[0]) /* BC specified explicitly */
- lbc = 2 * cmsg->BC[0];
- else if (cip2bchlc[cmsg->CIPValue].bc) /* BC derived from CIP */
- lbc = strlen(cip2bchlc[cmsg->CIPValue].bc);
- else /* no BC */
- lbc = 0;
- if (cmsg->HLC && cmsg->HLC[0]) /* HLC specified explicitly */
- lhlc = 2 * cmsg->HLC[0];
- else if (cip2bchlc[cmsg->CIPValue].hlc) /* HLC derived from CIP */
- lhlc = strlen(cip2bchlc[cmsg->CIPValue].hlc);
- else /* no HLC */
- lhlc = 0;
-
- if (lbc) {
- /* have BC: allocate and assemble command string */
- l = lbc + 7; /* "^SBC=" + value + "\r" + null byte */
- if (lhlc)
- l += lhlc + 7; /* ";^SHLC=" + value */
- commands[AT_BC] = kmalloc(l, GFP_KERNEL);
- if (!commands[AT_BC])
- goto oom;
- strcpy(commands[AT_BC], "^SBC=");
- if (cmsg->BC && cmsg->BC[0]) /* BC specified explicitly */
- decode_ie(cmsg->BC, commands[AT_BC] + 5);
- else /* BC derived from CIP */
- strcpy(commands[AT_BC] + 5,
- cip2bchlc[cmsg->CIPValue].bc);
- if (lhlc) {
- strcpy(commands[AT_BC] + lbc + 5, ";^SHLC=");
- if (cmsg->HLC && cmsg->HLC[0])
- /* HLC specified explicitly */
- decode_ie(cmsg->HLC,
- commands[AT_BC] + lbc + 12);
- else /* HLC derived from CIP */
- strcpy(commands[AT_BC] + lbc + 12,
- cip2bchlc[cmsg->CIPValue].hlc);
- }
- strcpy(commands[AT_BC] + l - 2, "\r");
- } else {
- /* no BC */
- if (lhlc) {
- dev_notice(cs->dev, "%s: cannot set HLC without BC\n",
- "CONNECT_REQ");
- info = CapiIllMessageParmCoding; /* ? */
- goto error;
- }
- }
-
- /* check/encode parameter: B Protocol */
- if (cmsg->BProtocol == CAPI_DEFAULT) {
- bcs->proto2 = L2_HDLC;
- dev_warn(cs->dev,
- "B2 Protocol X.75 SLP unsupported, using Transparent\n");
- } else {
- switch (cmsg->B1protocol) {
- case 0:
- bcs->proto2 = L2_HDLC;
- break;
- case 1:
- bcs->proto2 = L2_VOICE;
- break;
- default:
- dev_warn(cs->dev,
- "B1 Protocol %u unsupported, using Transparent\n",
- cmsg->B1protocol);
- bcs->proto2 = L2_VOICE;
- }
- if (cmsg->B2protocol != 1)
- dev_warn(cs->dev,
- "B2 Protocol %u unsupported, using Transparent\n",
- cmsg->B2protocol);
- if (cmsg->B3protocol != 0)
- dev_warn(cs->dev,
- "B3 Protocol %u unsupported, using Transparent\n",
- cmsg->B3protocol);
- ignore_cstruct_param(cs, cmsg->B1configuration,
- "CONNECT_REQ", "B1 Configuration");
- ignore_cstruct_param(cs, cmsg->B2configuration,
- "CONNECT_REQ", "B2 Configuration");
- ignore_cstruct_param(cs, cmsg->B3configuration,
- "CONNECT_REQ", "B3 Configuration");
- }
- commands[AT_PROTO] = kmalloc(9, GFP_KERNEL);
- if (!commands[AT_PROTO])
- goto oom;
- snprintf(commands[AT_PROTO], 9, "^SBPR=%u\r", bcs->proto2);
-
- /* ToDo: check/encode remaining parameters */
- ignore_cstruct_param(cs, cmsg->CalledPartySubaddress,
- "CONNECT_REQ", "Called pty subaddr");
- ignore_cstruct_param(cs, cmsg->CallingPartySubaddress,
- "CONNECT_REQ", "Calling pty subaddr");
- ignore_cstruct_param(cs, cmsg->LLC,
- "CONNECT_REQ", "LLC");
- if (cmsg->AdditionalInfo != CAPI_DEFAULT) {
- ignore_cstruct_param(cs, cmsg->BChannelinformation,
- "CONNECT_REQ", "B Channel Information");
- ignore_cstruct_param(cs, cmsg->Keypadfacility,
- "CONNECT_REQ", "Keypad Facility");
- ignore_cstruct_param(cs, cmsg->Useruserdata,
- "CONNECT_REQ", "User-User Data");
- ignore_cstruct_param(cs, cmsg->Facilitydataarray,
- "CONNECT_REQ", "Facility Data Array");
- }
-
- /* encode parameter: B channel to use */
- commands[AT_ISO] = kmalloc(9, GFP_KERNEL);
- if (!commands[AT_ISO])
- goto oom;
- snprintf(commands[AT_ISO], 9, "^SISO=%u\r",
- (unsigned) bcs->channel + 1);
-
- /* queue & schedule EV_DIAL event */
- if (!gigaset_add_event(cs, &bcs->at_state, EV_DIAL, commands,
- bcs->at_state.seq_index, NULL)) {
- info = CAPI_MSGOSRESOURCEERR;
- goto error;
- }
- gigaset_schedule_event(cs);
- send_conf(iif, ap, skb, CapiSuccess);
- return;
-
-oom:
- dev_err(cs->dev, "%s: out of memory\n", __func__);
- info = CAPI_MSGOSRESOURCEERR;
-error:
- if (commands)
- for (i = 0; i < AT_NUM; i++)
- kfree(commands[i]);
- kfree(commands);
- gigaset_free_channel(bcs);
- send_conf(iif, ap, skb, info);
-}
-
-/*
- * process CONNECT_RESP message
- * checks protocol parameters and queues an ACCEPT or HUP event
- */
-static void do_connect_resp(struct gigaset_capi_ctr *iif,
- struct gigaset_capi_appl *ap,
- struct sk_buff *skb)
-{
- struct cardstate *cs = iif->ctr.driverdata;
- _cmsg *cmsg = &iif->acmsg;
- struct bc_state *bcs;
- struct gigaset_capi_appl *oap;
- unsigned long flags;
- int channel;
-
- /* decode message */
- capi_message2cmsg(cmsg, skb->data);
- dump_cmsg(DEBUG_CMD, __func__, cmsg);
- dev_kfree_skb_any(skb);
-
- /* extract and check channel number from PLCI */
- channel = (cmsg->adr.adrPLCI >> 8) & 0xff;
- if (!channel || channel > cs->channels) {
- dev_notice(cs->dev, "%s: invalid %s 0x%02x\n",
- "CONNECT_RESP", "PLCI", cmsg->adr.adrPLCI);
- return;
- }
- bcs = cs->bcs + channel - 1;
-
- switch (cmsg->Reject) {
- case 0: /* Accept */
- /* drop all competing applications, keep only this one */
- spin_lock_irqsave(&bcs->aplock, flags);
- while (bcs->ap != NULL) {
- oap = bcs->ap;
- bcs->ap = oap->bcnext;
- if (oap != ap) {
- spin_unlock_irqrestore(&bcs->aplock, flags);
- send_disconnect_ind(bcs, oap,
- CapiCallGivenToOtherApplication);
- spin_lock_irqsave(&bcs->aplock, flags);
- }
- }
- ap->bcnext = NULL;
- bcs->ap = ap;
- spin_unlock_irqrestore(&bcs->aplock, flags);
-
- bcs->rx_bufsize = ap->rp.datablklen;
- dev_kfree_skb(bcs->rx_skb);
- gigaset_new_rx_skb(bcs);
- bcs->chstate |= CHS_NOTIFY_LL;
-
- /* check/encode B channel protocol */
- if (cmsg->BProtocol == CAPI_DEFAULT) {
- bcs->proto2 = L2_HDLC;
- dev_warn(cs->dev,
- "B2 Protocol X.75 SLP unsupported, using Transparent\n");
- } else {
- switch (cmsg->B1protocol) {
- case 0:
- bcs->proto2 = L2_HDLC;
- break;
- case 1:
- bcs->proto2 = L2_VOICE;
- break;
- default:
- dev_warn(cs->dev,
- "B1 Protocol %u unsupported, using Transparent\n",
- cmsg->B1protocol);
- bcs->proto2 = L2_VOICE;
- }
- if (cmsg->B2protocol != 1)
- dev_warn(cs->dev,
- "B2 Protocol %u unsupported, using Transparent\n",
- cmsg->B2protocol);
- if (cmsg->B3protocol != 0)
- dev_warn(cs->dev,
- "B3 Protocol %u unsupported, using Transparent\n",
- cmsg->B3protocol);
- ignore_cstruct_param(cs, cmsg->B1configuration,
- "CONNECT_RESP", "B1 Configuration");
- ignore_cstruct_param(cs, cmsg->B2configuration,
- "CONNECT_RESP", "B2 Configuration");
- ignore_cstruct_param(cs, cmsg->B3configuration,
- "CONNECT_RESP", "B3 Configuration");
- }
-
- /* ToDo: check/encode remaining parameters */
- ignore_cstruct_param(cs, cmsg->ConnectedNumber,
- "CONNECT_RESP", "Connected Number");
- ignore_cstruct_param(cs, cmsg->ConnectedSubaddress,
- "CONNECT_RESP", "Connected Subaddress");
- ignore_cstruct_param(cs, cmsg->LLC,
- "CONNECT_RESP", "LLC");
- if (cmsg->AdditionalInfo != CAPI_DEFAULT) {
- ignore_cstruct_param(cs, cmsg->BChannelinformation,
- "CONNECT_RESP", "BChannel Information");
- ignore_cstruct_param(cs, cmsg->Keypadfacility,
- "CONNECT_RESP", "Keypad Facility");
- ignore_cstruct_param(cs, cmsg->Useruserdata,
- "CONNECT_RESP", "User-User Data");
- ignore_cstruct_param(cs, cmsg->Facilitydataarray,
- "CONNECT_RESP", "Facility Data Array");
- }
-
- /* Accept call */
- if (!gigaset_add_event(cs, &cs->bcs[channel - 1].at_state,
- EV_ACCEPT, NULL, 0, NULL))
- return;
- gigaset_schedule_event(cs);
- return;
-
- case 1: /* Ignore */
- /* send DISCONNECT_IND to this application */
- send_disconnect_ind(bcs, ap, 0);
-
- /* remove it from the list of listening apps */
- spin_lock_irqsave(&bcs->aplock, flags);
- if (bcs->ap == ap) {
- bcs->ap = ap->bcnext;
- if (bcs->ap == NULL) {
- /* last one: stop ev-layer hupD notifications */
- bcs->apconnstate = APCONN_NONE;
- bcs->chstate &= ~CHS_NOTIFY_LL;
- }
- spin_unlock_irqrestore(&bcs->aplock, flags);
- return;
- }
- for (oap = bcs->ap; oap != NULL; oap = oap->bcnext) {
- if (oap->bcnext == ap) {
- oap->bcnext = oap->bcnext->bcnext;
- spin_unlock_irqrestore(&bcs->aplock, flags);
- return;
- }
- }
- spin_unlock_irqrestore(&bcs->aplock, flags);
- dev_err(cs->dev, "%s: application %u not found\n",
- __func__, ap->id);
- return;
-
- default: /* Reject */
- /* drop all competing applications, keep only this one */
- spin_lock_irqsave(&bcs->aplock, flags);
- while (bcs->ap != NULL) {
- oap = bcs->ap;
- bcs->ap = oap->bcnext;
- if (oap != ap) {
- spin_unlock_irqrestore(&bcs->aplock, flags);
- send_disconnect_ind(bcs, oap,
- CapiCallGivenToOtherApplication);
- spin_lock_irqsave(&bcs->aplock, flags);
- }
- }
- ap->bcnext = NULL;
- bcs->ap = ap;
- spin_unlock_irqrestore(&bcs->aplock, flags);
-
- /* reject call - will trigger DISCONNECT_IND for this app */
- dev_info(cs->dev, "%s: Reject=%x\n",
- "CONNECT_RESP", cmsg->Reject);
- if (!gigaset_add_event(cs, &cs->bcs[channel - 1].at_state,
- EV_HUP, NULL, 0, NULL))
- return;
- gigaset_schedule_event(cs);
- return;
- }
-}
-
-/*
- * process CONNECT_B3_REQ message
- * build NCCI and emit CONNECT_B3_CONF reply
- */
-static void do_connect_b3_req(struct gigaset_capi_ctr *iif,
- struct gigaset_capi_appl *ap,
- struct sk_buff *skb)
-{
- struct cardstate *cs = iif->ctr.driverdata;
- _cmsg *cmsg = &iif->acmsg;
- struct bc_state *bcs;
- int channel;
-
- /* decode message */
- capi_message2cmsg(cmsg, skb->data);
- dump_cmsg(DEBUG_CMD, __func__, cmsg);
-
- /* extract and check channel number from PLCI */
- channel = (cmsg->adr.adrPLCI >> 8) & 0xff;
- if (!channel || channel > cs->channels) {
- dev_notice(cs->dev, "%s: invalid %s 0x%02x\n",
- "CONNECT_B3_REQ", "PLCI", cmsg->adr.adrPLCI);
- send_conf(iif, ap, skb, CapiIllContrPlciNcci);
- return;
- }
- bcs = &cs->bcs[channel - 1];
-
- /* mark logical connection active */
- bcs->apconnstate = APCONN_ACTIVE;
-
- /* build NCCI: always 1 (one B3 connection only) */
- cmsg->adr.adrNCCI |= 1 << 16;
-
- /* NCPI parameter: not applicable for B3 Transparent */
- ignore_cstruct_param(cs, cmsg->NCPI, "CONNECT_B3_REQ", "NCPI");
- send_conf(iif, ap, skb, (cmsg->NCPI && cmsg->NCPI[0]) ?
- CapiNcpiNotSupportedByProtocol : CapiSuccess);
-}
-
-/*
- * process CONNECT_B3_RESP message
- * Depending on the Reject parameter, either emit CONNECT_B3_ACTIVE_IND
- * or queue EV_HUP and emit DISCONNECT_B3_IND.
- * The emitted message is always shorter than the received one,
- * allowing to reuse the skb.
- */
-static void do_connect_b3_resp(struct gigaset_capi_ctr *iif,
- struct gigaset_capi_appl *ap,
- struct sk_buff *skb)
-{
- struct cardstate *cs = iif->ctr.driverdata;
- _cmsg *cmsg = &iif->acmsg;
- struct bc_state *bcs;
- int channel;
- unsigned int msgsize;
- u8 command;
-
- /* decode message */
- capi_message2cmsg(cmsg, skb->data);
- dump_cmsg(DEBUG_CMD, __func__, cmsg);
-
- /* extract and check channel number and NCCI */
- channel = (cmsg->adr.adrNCCI >> 8) & 0xff;
- if (!channel || channel > cs->channels ||
- ((cmsg->adr.adrNCCI >> 16) & 0xffff) != 1) {
- dev_notice(cs->dev, "%s: invalid %s 0x%02x\n",
- "CONNECT_B3_RESP", "NCCI", cmsg->adr.adrNCCI);
- dev_kfree_skb_any(skb);
- return;
- }
- bcs = &cs->bcs[channel - 1];
-
- if (cmsg->Reject) {
- /* Reject: clear B3 connect received flag */
- bcs->apconnstate = APCONN_SETUP;
-
- /* trigger hangup, causing eventual DISCONNECT_IND */
- if (!gigaset_add_event(cs, &bcs->at_state,
- EV_HUP, NULL, 0, NULL)) {
- dev_kfree_skb_any(skb);
- return;
- }
- gigaset_schedule_event(cs);
-
- /* emit DISCONNECT_B3_IND */
- command = CAPI_DISCONNECT_B3;
- msgsize = CAPI_DISCONNECT_B3_IND_BASELEN;
- } else {
- /*
- * Accept: emit CONNECT_B3_ACTIVE_IND immediately, as
- * we only send CONNECT_B3_IND if the B channel is up
- */
- command = CAPI_CONNECT_B3_ACTIVE;
- msgsize = CAPI_CONNECT_B3_ACTIVE_IND_BASELEN;
- }
- capi_cmsg_header(cmsg, ap->id, command, CAPI_IND,
- ap->nextMessageNumber++, cmsg->adr.adrNCCI);
- __skb_trim(skb, msgsize);
- capi_cmsg2message(cmsg, skb->data);
- dump_cmsg(DEBUG_CMD, __func__, cmsg);
- capi_ctr_handle_message(&iif->ctr, ap->id, skb);
-}
-
-/*
- * process DISCONNECT_REQ message
- * schedule EV_HUP and emit DISCONNECT_B3_IND if necessary,
- * emit DISCONNECT_CONF reply
- */
-static void do_disconnect_req(struct gigaset_capi_ctr *iif,
- struct gigaset_capi_appl *ap,
- struct sk_buff *skb)
-{
- struct cardstate *cs = iif->ctr.driverdata;
- _cmsg *cmsg = &iif->acmsg;
- struct bc_state *bcs;
- _cmsg *b3cmsg;
- struct sk_buff *b3skb;
- int channel;
-
- /* decode message */
- capi_message2cmsg(cmsg, skb->data);
- dump_cmsg(DEBUG_CMD, __func__, cmsg);
-
- /* extract and check channel number from PLCI */
- channel = (cmsg->adr.adrPLCI >> 8) & 0xff;
- if (!channel || channel > cs->channels) {
- dev_notice(cs->dev, "%s: invalid %s 0x%02x\n",
- "DISCONNECT_REQ", "PLCI", cmsg->adr.adrPLCI);
- send_conf(iif, ap, skb, CapiIllContrPlciNcci);
- return;
- }
- bcs = cs->bcs + channel - 1;
-
- /* ToDo: process parameter: Additional info */
- if (cmsg->AdditionalInfo != CAPI_DEFAULT) {
- ignore_cstruct_param(cs, cmsg->BChannelinformation,
- "DISCONNECT_REQ", "B Channel Information");
- ignore_cstruct_param(cs, cmsg->Keypadfacility,
- "DISCONNECT_REQ", "Keypad Facility");
- ignore_cstruct_param(cs, cmsg->Useruserdata,
- "DISCONNECT_REQ", "User-User Data");
- ignore_cstruct_param(cs, cmsg->Facilitydataarray,
- "DISCONNECT_REQ", "Facility Data Array");
- }
-
- /* skip if DISCONNECT_IND already sent */
- if (!bcs->apconnstate)
- return;
-
- /* check for active logical connection */
- if (bcs->apconnstate >= APCONN_ACTIVE) {
- /* clear it */
- bcs->apconnstate = APCONN_SETUP;
-
- /*
- * emit DISCONNECT_B3_IND with cause 0x3301
- * use separate cmsg structure, as the content of iif->acmsg
- * is still needed for creating the _CONF message
- */
- b3cmsg = kmalloc(sizeof(*b3cmsg), GFP_KERNEL);
- if (!b3cmsg) {
- dev_err(cs->dev, "%s: out of memory\n", __func__);
- send_conf(iif, ap, skb, CAPI_MSGOSRESOURCEERR);
- return;
- }
- capi_cmsg_header(b3cmsg, ap->id, CAPI_DISCONNECT_B3, CAPI_IND,
- ap->nextMessageNumber++,
- cmsg->adr.adrPLCI | (1 << 16));
- b3cmsg->Reason_B3 = CapiProtocolErrorLayer1;
- b3skb = alloc_skb(CAPI_DISCONNECT_B3_IND_BASELEN, GFP_KERNEL);
- if (b3skb == NULL) {
- dev_err(cs->dev, "%s: out of memory\n", __func__);
- send_conf(iif, ap, skb, CAPI_MSGOSRESOURCEERR);
- kfree(b3cmsg);
- return;
- }
- capi_cmsg2message(b3cmsg,
- __skb_put(b3skb, CAPI_DISCONNECT_B3_IND_BASELEN));
- dump_cmsg(DEBUG_CMD, __func__, b3cmsg);
- kfree(b3cmsg);
- capi_ctr_handle_message(&iif->ctr, ap->id, b3skb);
- }
-
- /* trigger hangup, causing eventual DISCONNECT_IND */
- if (!gigaset_add_event(cs, &bcs->at_state, EV_HUP, NULL, 0, NULL)) {
- send_conf(iif, ap, skb, CAPI_MSGOSRESOURCEERR);
- return;
- }
- gigaset_schedule_event(cs);
-
- /* emit reply */
- send_conf(iif, ap, skb, CapiSuccess);
-}
-
-/*
- * process DISCONNECT_B3_REQ message
- * schedule EV_HUP and emit DISCONNECT_B3_CONF reply
- */
-static void do_disconnect_b3_req(struct gigaset_capi_ctr *iif,
- struct gigaset_capi_appl *ap,
- struct sk_buff *skb)
-{
- struct cardstate *cs = iif->ctr.driverdata;
- _cmsg *cmsg = &iif->acmsg;
- struct bc_state *bcs;
- int channel;
-
- /* decode message */
- capi_message2cmsg(cmsg, skb->data);
- dump_cmsg(DEBUG_CMD, __func__, cmsg);
-
- /* extract and check channel number and NCCI */
- channel = (cmsg->adr.adrNCCI >> 8) & 0xff;
- if (!channel || channel > cs->channels ||
- ((cmsg->adr.adrNCCI >> 16) & 0xffff) != 1) {
- dev_notice(cs->dev, "%s: invalid %s 0x%02x\n",
- "DISCONNECT_B3_REQ", "NCCI", cmsg->adr.adrNCCI);
- send_conf(iif, ap, skb, CapiIllContrPlciNcci);
- return;
- }
- bcs = &cs->bcs[channel - 1];
-
- /* reject if logical connection not active */
- if (bcs->apconnstate < APCONN_ACTIVE) {
- send_conf(iif, ap, skb,
- CapiMessageNotSupportedInCurrentState);
- return;
- }
-
- /* trigger hangup, causing eventual DISCONNECT_B3_IND */
- if (!gigaset_add_event(cs, &bcs->at_state, EV_HUP, NULL, 0, NULL)) {
- send_conf(iif, ap, skb, CAPI_MSGOSRESOURCEERR);
- return;
- }
- gigaset_schedule_event(cs);
-
- /* NCPI parameter: not applicable for B3 Transparent */
- ignore_cstruct_param(cs, cmsg->NCPI,
- "DISCONNECT_B3_REQ", "NCPI");
- send_conf(iif, ap, skb, (cmsg->NCPI && cmsg->NCPI[0]) ?
- CapiNcpiNotSupportedByProtocol : CapiSuccess);
-}
-
-/*
- * process DATA_B3_REQ message
- */
-static void do_data_b3_req(struct gigaset_capi_ctr *iif,
- struct gigaset_capi_appl *ap,
- struct sk_buff *skb)
-{
- struct cardstate *cs = iif->ctr.driverdata;
- struct bc_state *bcs;
- int channel = CAPIMSG_PLCI_PART(skb->data);
- u16 ncci = CAPIMSG_NCCI_PART(skb->data);
- u16 msglen = CAPIMSG_LEN(skb->data);
- u16 datalen = CAPIMSG_DATALEN(skb->data);
- u16 flags = CAPIMSG_FLAGS(skb->data);
- u16 msgid = CAPIMSG_MSGID(skb->data);
- u16 handle = CAPIMSG_HANDLE_REQ(skb->data);
-
- /* frequent message, avoid _cmsg overhead */
- dump_rawmsg(DEBUG_MCMD, __func__, skb->data);
-
- /* check parameters */
- if (channel == 0 || channel > cs->channels || ncci != 1) {
- dev_notice(cs->dev, "%s: invalid %s 0x%02x\n",
- "DATA_B3_REQ", "NCCI", CAPIMSG_NCCI(skb->data));
- send_conf(iif, ap, skb, CapiIllContrPlciNcci);
- return;
- }
- bcs = &cs->bcs[channel - 1];
- if (msglen != CAPI_DATA_B3_REQ_LEN && msglen != CAPI_DATA_B3_REQ_LEN64)
- dev_notice(cs->dev, "%s: unexpected length %d\n",
- "DATA_B3_REQ", msglen);
- if (msglen + datalen != skb->len)
- dev_notice(cs->dev, "%s: length mismatch (%d+%d!=%d)\n",
- "DATA_B3_REQ", msglen, datalen, skb->len);
- if (msglen + datalen > skb->len) {
- /* message too short for announced data length */
- send_conf(iif, ap, skb, CapiIllMessageParmCoding); /* ? */
- return;
- }
- if (flags & CAPI_FLAGS_RESERVED) {
- dev_notice(cs->dev, "%s: reserved flags set (%x)\n",
- "DATA_B3_REQ", flags);
- send_conf(iif, ap, skb, CapiIllMessageParmCoding);
- return;
- }
-
- /* reject if logical connection not active */
- if (bcs->apconnstate < APCONN_ACTIVE) {
- send_conf(iif, ap, skb, CapiMessageNotSupportedInCurrentState);
- return;
- }
-
- /* pull CAPI message into link layer header */
- skb_reset_mac_header(skb);
- skb->mac_len = msglen;
- skb_pull(skb, msglen);
-
- /* pass to device-specific module */
- if (cs->ops->send_skb(bcs, skb) < 0) {
- send_conf(iif, ap, skb, CAPI_MSGOSRESOURCEERR);
- return;
- }
-
- /*
- * DATA_B3_CONF will be sent by gigaset_skb_sent() only if "delivery
- * confirmation" bit is set; otherwise we have to send it now
- */
- if (!(flags & CAPI_FLAGS_DELIVERY_CONFIRMATION))
- send_data_b3_conf(cs, &iif->ctr, ap->id, msgid, channel, handle,
- flags ? CapiFlagsNotSupportedByProtocol
- : CAPI_NOERROR);
-}
-
-/*
- * process RESET_B3_REQ message
- * just always reply "not supported by current protocol"
- */
-static void do_reset_b3_req(struct gigaset_capi_ctr *iif,
- struct gigaset_capi_appl *ap,
- struct sk_buff *skb)
-{
- /* decode message */
- capi_message2cmsg(&iif->acmsg, skb->data);
- dump_cmsg(DEBUG_CMD, __func__, &iif->acmsg);
- send_conf(iif, ap, skb,
- CapiResetProcedureNotSupportedByCurrentProtocol);
-}
-
-/*
- * unsupported CAPI message handler
- */
-static void do_unsupported(struct gigaset_capi_ctr *iif,
- struct gigaset_capi_appl *ap,
- struct sk_buff *skb)
-{
- /* decode message */
- capi_message2cmsg(&iif->acmsg, skb->data);
- dump_cmsg(DEBUG_CMD, __func__, &iif->acmsg);
- send_conf(iif, ap, skb, CapiMessageNotSupportedInCurrentState);
-}
-
-/*
- * CAPI message handler: no-op
- */
-static void do_nothing(struct gigaset_capi_ctr *iif,
- struct gigaset_capi_appl *ap,
- struct sk_buff *skb)
-{
- /* decode message */
- capi_message2cmsg(&iif->acmsg, skb->data);
- dump_cmsg(DEBUG_CMD, __func__, &iif->acmsg);
- dev_kfree_skb_any(skb);
-}
-
-static void do_data_b3_resp(struct gigaset_capi_ctr *iif,
- struct gigaset_capi_appl *ap,
- struct sk_buff *skb)
-{
- dump_rawmsg(DEBUG_MCMD, __func__, skb->data);
- dev_kfree_skb_any(skb);
-}
-
-/* table of outgoing CAPI message handlers with lookup function */
-typedef void (*capi_send_handler_t)(struct gigaset_capi_ctr *,
- struct gigaset_capi_appl *,
- struct sk_buff *);
-
-static struct {
- u16 cmd;
- capi_send_handler_t handler;
-} capi_send_handler_table[] = {
- /* most frequent messages first for faster lookup */
- { CAPI_DATA_B3_REQ, do_data_b3_req },
- { CAPI_DATA_B3_RESP, do_data_b3_resp },
-
- { CAPI_ALERT_REQ, do_alert_req },
- { CAPI_CONNECT_ACTIVE_RESP, do_nothing },
- { CAPI_CONNECT_B3_ACTIVE_RESP, do_nothing },
- { CAPI_CONNECT_B3_REQ, do_connect_b3_req },
- { CAPI_CONNECT_B3_RESP, do_connect_b3_resp },
- { CAPI_CONNECT_B3_T90_ACTIVE_RESP, do_nothing },
- { CAPI_CONNECT_REQ, do_connect_req },
- { CAPI_CONNECT_RESP, do_connect_resp },
- { CAPI_DISCONNECT_B3_REQ, do_disconnect_b3_req },
- { CAPI_DISCONNECT_B3_RESP, do_nothing },
- { CAPI_DISCONNECT_REQ, do_disconnect_req },
- { CAPI_DISCONNECT_RESP, do_nothing },
- { CAPI_FACILITY_REQ, do_facility_req },
- { CAPI_FACILITY_RESP, do_nothing },
- { CAPI_LISTEN_REQ, do_listen_req },
- { CAPI_SELECT_B_PROTOCOL_REQ, do_unsupported },
- { CAPI_RESET_B3_REQ, do_reset_b3_req },
- { CAPI_RESET_B3_RESP, do_nothing },
-
- /*
- * ToDo: support overlap sending (requires ev-layer state
- * machine extension to generate additional ATD commands)
- */
- { CAPI_INFO_REQ, do_unsupported },
- { CAPI_INFO_RESP, do_nothing },
-
- /*
- * ToDo: what's the proper response for these?
- */
- { CAPI_MANUFACTURER_REQ, do_nothing },
- { CAPI_MANUFACTURER_RESP, do_nothing },
-};
-
-/* look up handler */
-static inline capi_send_handler_t lookup_capi_send_handler(const u16 cmd)
-{
- size_t i;
-
- for (i = 0; i < ARRAY_SIZE(capi_send_handler_table); i++)
- if (capi_send_handler_table[i].cmd == cmd)
- return capi_send_handler_table[i].handler;
- return NULL;
-}
-
-
-/**
- * gigaset_send_message() - accept a CAPI message from an application
- * @ctr: controller descriptor structure.
- * @skb: CAPI message.
- *
- * Return value: CAPI error code
- * Note: capidrv (and probably others, too) only uses the return value to
- * decide whether it has to free the skb (only if result != CAPI_NOERROR (0))
- */
-static u16 gigaset_send_message(struct capi_ctr *ctr, struct sk_buff *skb)
-{
- struct gigaset_capi_ctr *iif
- = container_of(ctr, struct gigaset_capi_ctr, ctr);
- struct cardstate *cs = ctr->driverdata;
- struct gigaset_capi_appl *ap;
- capi_send_handler_t handler;
-
- /* can only handle linear sk_buffs */
- if (skb_linearize(skb) < 0) {
- dev_warn(cs->dev, "%s: skb_linearize failed\n", __func__);
- return CAPI_MSGOSRESOURCEERR;
- }
-
- /* retrieve application data structure */
- ap = get_appl(iif, CAPIMSG_APPID(skb->data));
- if (!ap) {
- dev_notice(cs->dev, "%s: application %u not registered\n",
- __func__, CAPIMSG_APPID(skb->data));
- return CAPI_ILLAPPNR;
- }
-
- /* look up command */
- handler = lookup_capi_send_handler(CAPIMSG_CMD(skb->data));
- if (!handler) {
- /* unknown/unsupported message type */
- if (printk_ratelimit())
- dev_notice(cs->dev, "%s: unsupported message %u\n",
- __func__, CAPIMSG_CMD(skb->data));
- return CAPI_ILLCMDORSUBCMDORMSGTOSMALL;
- }
-
- /* serialize */
- if (atomic_add_return(1, &iif->sendqlen) > 1) {
- /* queue behind other messages */
- skb_queue_tail(&iif->sendqueue, skb);
- return CAPI_NOERROR;
- }
-
- /* process message */
- handler(iif, ap, skb);
-
- /* process other messages arrived in the meantime */
- while (atomic_sub_return(1, &iif->sendqlen) > 0) {
- skb = skb_dequeue(&iif->sendqueue);
- if (!skb) {
- /* should never happen */
- dev_err(cs->dev, "%s: send queue empty\n", __func__);
- continue;
- }
- ap = get_appl(iif, CAPIMSG_APPID(skb->data));
- if (!ap) {
- /* could that happen? */
- dev_warn(cs->dev, "%s: application %u vanished\n",
- __func__, CAPIMSG_APPID(skb->data));
- continue;
- }
- handler = lookup_capi_send_handler(CAPIMSG_CMD(skb->data));
- if (!handler) {
- /* should never happen */
- dev_err(cs->dev, "%s: handler %x vanished\n",
- __func__, CAPIMSG_CMD(skb->data));
- continue;
- }
- handler(iif, ap, skb);
- }
-
- return CAPI_NOERROR;
-}
-
-/**
- * gigaset_procinfo() - build single line description for controller
- * @ctr: controller descriptor structure.
- *
- * Return value: pointer to generated string (null terminated)
- */
-static char *gigaset_procinfo(struct capi_ctr *ctr)
-{
- return ctr->name; /* ToDo: more? */
-}
-
-static int gigaset_proc_show(struct seq_file *m, void *v)
-{
- struct capi_ctr *ctr = m->private;
- struct cardstate *cs = ctr->driverdata;
- char *s;
- int i;
-
- seq_printf(m, "%-16s %s\n", "name", ctr->name);
- seq_printf(m, "%-16s %s %s\n", "dev",
- dev_driver_string(cs->dev), dev_name(cs->dev));
- seq_printf(m, "%-16s %d\n", "id", cs->myid);
- if (cs->gotfwver)
- seq_printf(m, "%-16s %d.%d.%d.%d\n", "firmware",
- cs->fwver[0], cs->fwver[1], cs->fwver[2], cs->fwver[3]);
- seq_printf(m, "%-16s %d\n", "channels", cs->channels);
- seq_printf(m, "%-16s %s\n", "onechannel", cs->onechannel ? "yes" : "no");
-
- switch (cs->mode) {
- case M_UNKNOWN:
- s = "unknown";
- break;
- case M_CONFIG:
- s = "config";
- break;
- case M_UNIMODEM:
- s = "Unimodem";
- break;
- case M_CID:
- s = "CID";
- break;
- default:
- s = "??";
- }
- seq_printf(m, "%-16s %s\n", "mode", s);
-
- switch (cs->mstate) {
- case MS_UNINITIALIZED:
- s = "uninitialized";
- break;
- case MS_INIT:
- s = "init";
- break;
- case MS_LOCKED:
- s = "locked";
- break;
- case MS_SHUTDOWN:
- s = "shutdown";
- break;
- case MS_RECOVER:
- s = "recover";
- break;
- case MS_READY:
- s = "ready";
- break;
- default:
- s = "??";
- }
- seq_printf(m, "%-16s %s\n", "mstate", s);
-
- seq_printf(m, "%-16s %s\n", "running", cs->running ? "yes" : "no");
- seq_printf(m, "%-16s %s\n", "connected", cs->connected ? "yes" : "no");
- seq_printf(m, "%-16s %s\n", "isdn_up", cs->isdn_up ? "yes" : "no");
- seq_printf(m, "%-16s %s\n", "cidmode", cs->cidmode ? "yes" : "no");
-
- for (i = 0; i < cs->channels; i++) {
- seq_printf(m, "[%d]%-13s %d\n", i, "corrupted",
- cs->bcs[i].corrupted);
- seq_printf(m, "[%d]%-13s %d\n", i, "trans_down",
- cs->bcs[i].trans_down);
- seq_printf(m, "[%d]%-13s %d\n", i, "trans_up",
- cs->bcs[i].trans_up);
- seq_printf(m, "[%d]%-13s %d\n", i, "chstate",
- cs->bcs[i].chstate);
- switch (cs->bcs[i].proto2) {
- case L2_BITSYNC:
- s = "bitsync";
- break;
- case L2_HDLC:
- s = "HDLC";
- break;
- case L2_VOICE:
- s = "voice";
- break;
- default:
- s = "??";
- }
- seq_printf(m, "[%d]%-13s %s\n", i, "proto2", s);
- }
- return 0;
-}
-
-static int gigaset_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, gigaset_proc_show, PDE(inode)->data);
-}
-
-static const struct file_operations gigaset_proc_fops = {
- .owner = THIS_MODULE,
- .open = gigaset_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-/**
- * gigaset_isdn_regdev() - register device to LL
- * @cs: device descriptor structure.
- * @isdnid: device name.
- *
- * Return value: 1 for success, 0 for failure
- */
-int gigaset_isdn_regdev(struct cardstate *cs, const char *isdnid)
-{
- struct gigaset_capi_ctr *iif;
- int rc;
-
- iif = kmalloc(sizeof(*iif), GFP_KERNEL);
- if (!iif) {
- pr_err("%s: out of memory\n", __func__);
- return 0;
- }
-
- /* prepare controller structure */
- iif->ctr.owner = THIS_MODULE;
- iif->ctr.driverdata = cs;
- strncpy(iif->ctr.name, isdnid, sizeof(iif->ctr.name));
- iif->ctr.driver_name = "gigaset";
- iif->ctr.load_firmware = NULL;
- iif->ctr.reset_ctr = NULL;
- iif->ctr.register_appl = gigaset_register_appl;
- iif->ctr.release_appl = gigaset_release_appl;
- iif->ctr.send_message = gigaset_send_message;
- iif->ctr.procinfo = gigaset_procinfo;
- iif->ctr.proc_fops = &gigaset_proc_fops;
- INIT_LIST_HEAD(&iif->appls);
- skb_queue_head_init(&iif->sendqueue);
- atomic_set(&iif->sendqlen, 0);
-
- /* register controller with CAPI */
- rc = attach_capi_ctr(&iif->ctr);
- if (rc) {
- pr_err("attach_capi_ctr failed (%d)\n", rc);
- kfree(iif);
- return 0;
- }
-
- cs->iif = iif;
- cs->hw_hdr_len = CAPI_DATA_B3_REQ_LEN;
- return 1;
-}
-
-/**
- * gigaset_isdn_unregdev() - unregister device from LL
- * @cs: device descriptor structure.
- */
-void gigaset_isdn_unregdev(struct cardstate *cs)
-{
- struct gigaset_capi_ctr *iif = cs->iif;
-
- detach_capi_ctr(&iif->ctr);
- kfree(iif);
- cs->iif = NULL;
-}
-
-static struct capi_driver capi_driver_gigaset = {
- .name = "gigaset",
- .revision = "1.0",
-};
-
-/**
- * gigaset_isdn_regdrv() - register driver to LL
- */
-void gigaset_isdn_regdrv(void)
-{
- pr_info("Kernel CAPI interface\n");
- register_capi_driver(&capi_driver_gigaset);
-}
-
-/**
- * gigaset_isdn_unregdrv() - unregister driver from LL
- */
-void gigaset_isdn_unregdrv(void)
-{
- unregister_capi_driver(&capi_driver_gigaset);
-}
--
cgit