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path: root/drivers/isdn/gigaset/ev-layer.c
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Diffstat (limited to 'drivers/isdn/gigaset/ev-layer.c')
-rw-r--r--drivers/isdn/gigaset/ev-layer.c1913
1 files changed, 0 insertions, 1913 deletions
diff --git a/drivers/isdn/gigaset/ev-layer.c b/drivers/isdn/gigaset/ev-layer.c
deleted file mode 100644
index 182826e9d07c..000000000000
--- a/drivers/isdn/gigaset/ev-layer.c
+++ /dev/null
@@ -1,1913 +0,0 @@
-/*
- * Stuff used by all variants of the driver
- *
- * Copyright (c) 2001 by Stefan Eilers,
- * Hansjoerg Lipp <hjlipp@web.de>,
- * 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 <linux/export.h>
-#include "gigaset.h"
-
-/* ========================================================== */
-/* bit masks for pending commands */
-#define PC_DIAL 0x001
-#define PC_HUP 0x002
-#define PC_INIT 0x004
-#define PC_DLE0 0x008
-#define PC_DLE1 0x010
-#define PC_SHUTDOWN 0x020
-#define PC_ACCEPT 0x040
-#define PC_CID 0x080
-#define PC_NOCID 0x100
-#define PC_CIDMODE 0x200
-#define PC_UMMODE 0x400
-
-/* types of modem responses */
-#define RT_NOTHING 0
-#define RT_ZSAU 1
-#define RT_RING 2
-#define RT_NUMBER 3
-#define RT_STRING 4
-#define RT_ZCAU 6
-
-/* Possible ASCII responses */
-#define RSP_OK 0
-#define RSP_ERROR 1
-#define RSP_ZGCI 3
-#define RSP_RING 4
-#define RSP_ZVLS 5
-#define RSP_ZCAU 6
-
-/* responses with values to store in at_state */
-/* - numeric */
-#define RSP_VAR 100
-#define RSP_ZSAU (RSP_VAR + VAR_ZSAU)
-#define RSP_ZDLE (RSP_VAR + VAR_ZDLE)
-#define RSP_ZCTP (RSP_VAR + VAR_ZCTP)
-/* - string */
-#define RSP_STR (RSP_VAR + VAR_NUM)
-#define RSP_NMBR (RSP_STR + STR_NMBR)
-#define RSP_ZCPN (RSP_STR + STR_ZCPN)
-#define RSP_ZCON (RSP_STR + STR_ZCON)
-#define RSP_ZBC (RSP_STR + STR_ZBC)
-#define RSP_ZHLC (RSP_STR + STR_ZHLC)
-
-#define RSP_WRONG_CID -2 /* unknown cid in cmd */
-#define RSP_INVAL -6 /* invalid response */
-#define RSP_NODEV -9 /* device not connected */
-
-#define RSP_NONE -19
-#define RSP_STRING -20
-#define RSP_NULL -21
-#define RSP_INIT -27
-#define RSP_ANY -26
-#define RSP_LAST -28
-
-/* actions for process_response */
-#define ACT_NOTHING 0
-#define ACT_SETDLE1 1
-#define ACT_SETDLE0 2
-#define ACT_FAILINIT 3
-#define ACT_HUPMODEM 4
-#define ACT_CONFIGMODE 5
-#define ACT_INIT 6
-#define ACT_DLE0 7
-#define ACT_DLE1 8
-#define ACT_FAILDLE0 9
-#define ACT_FAILDLE1 10
-#define ACT_RING 11
-#define ACT_CID 12
-#define ACT_FAILCID 13
-#define ACT_SDOWN 14
-#define ACT_FAILSDOWN 15
-#define ACT_DEBUG 16
-#define ACT_WARN 17
-#define ACT_DIALING 18
-#define ACT_ABORTDIAL 19
-#define ACT_DISCONNECT 20
-#define ACT_CONNECT 21
-#define ACT_REMOTEREJECT 22
-#define ACT_CONNTIMEOUT 23
-#define ACT_REMOTEHUP 24
-#define ACT_ABORTHUP 25
-#define ACT_ICALL 26
-#define ACT_ACCEPTED 27
-#define ACT_ABORTACCEPT 28
-#define ACT_TIMEOUT 29
-#define ACT_GETSTRING 30
-#define ACT_SETVER 31
-#define ACT_FAILVER 32
-#define ACT_GOTVER 33
-#define ACT_TEST 34
-#define ACT_ERROR 35
-#define ACT_ABORTCID 36
-#define ACT_ZCAU 37
-#define ACT_NOTIFY_BC_DOWN 38
-#define ACT_NOTIFY_BC_UP 39
-#define ACT_DIAL 40
-#define ACT_ACCEPT 41
-#define ACT_HUP 43
-#define ACT_IF_LOCK 44
-#define ACT_START 45
-#define ACT_STOP 46
-#define ACT_FAKEDLE0 47
-#define ACT_FAKEHUP 48
-#define ACT_FAKESDOWN 49
-#define ACT_SHUTDOWN 50
-#define ACT_PROC_CIDMODE 51
-#define ACT_UMODESET 52
-#define ACT_FAILUMODE 53
-#define ACT_CMODESET 54
-#define ACT_FAILCMODE 55
-#define ACT_IF_VER 56
-#define ACT_CMD 100
-
-/* at command sequences */
-#define SEQ_NONE 0
-#define SEQ_INIT 100
-#define SEQ_DLE0 200
-#define SEQ_DLE1 250
-#define SEQ_CID 300
-#define SEQ_NOCID 350
-#define SEQ_HUP 400
-#define SEQ_DIAL 600
-#define SEQ_ACCEPT 720
-#define SEQ_SHUTDOWN 500
-#define SEQ_CIDMODE 10
-#define SEQ_UMMODE 11
-
-
-/* 100: init, 200: dle0, 250:dle1, 300: get cid (dial), 350: "hup" (no cid),
- * 400: hup, 500: reset, 600: dial, 700: ring */
-struct reply_t gigaset_tab_nocid[] =
-{
-/* resp_code, min_ConState, max_ConState, parameter, new_ConState, timeout,
- * action, command */
-
-/* initialize device, set cid mode if possible */
- {RSP_INIT, -1, -1, SEQ_INIT, 100, 1, {ACT_TIMEOUT} },
-
- {EV_TIMEOUT, 100, 100, -1, 101, 3, {0}, "Z\r"},
- {RSP_OK, 101, 103, -1, 120, 5, {ACT_GETSTRING},
- "+GMR\r"},
-
- {EV_TIMEOUT, 101, 101, -1, 102, 5, {0}, "Z\r"},
- {RSP_ERROR, 101, 101, -1, 102, 5, {0}, "Z\r"},
-
- {EV_TIMEOUT, 102, 102, -1, 108, 5, {ACT_SETDLE1},
- "^SDLE=0\r"},
- {RSP_OK, 108, 108, -1, 104, -1},
- {RSP_ZDLE, 104, 104, 0, 103, 5, {0}, "Z\r"},
- {EV_TIMEOUT, 104, 104, -1, 0, 0, {ACT_FAILINIT} },
- {RSP_ERROR, 108, 108, -1, 0, 0, {ACT_FAILINIT} },
-
- {EV_TIMEOUT, 108, 108, -1, 105, 2, {ACT_SETDLE0,
- ACT_HUPMODEM,
- ACT_TIMEOUT} },
- {EV_TIMEOUT, 105, 105, -1, 103, 5, {0}, "Z\r"},
-
- {RSP_ERROR, 102, 102, -1, 107, 5, {0}, "^GETPRE\r"},
- {RSP_OK, 107, 107, -1, 0, 0, {ACT_CONFIGMODE} },
- {RSP_ERROR, 107, 107, -1, 0, 0, {ACT_FAILINIT} },
- {EV_TIMEOUT, 107, 107, -1, 0, 0, {ACT_FAILINIT} },
-
- {RSP_ERROR, 103, 103, -1, 0, 0, {ACT_FAILINIT} },
- {EV_TIMEOUT, 103, 103, -1, 0, 0, {ACT_FAILINIT} },
-
- {RSP_STRING, 120, 120, -1, 121, -1, {ACT_SETVER} },
-
- {EV_TIMEOUT, 120, 121, -1, 0, 0, {ACT_FAILVER,
- ACT_INIT} },
- {RSP_ERROR, 120, 121, -1, 0, 0, {ACT_FAILVER,
- ACT_INIT} },
- {RSP_OK, 121, 121, -1, 0, 0, {ACT_GOTVER,
- ACT_INIT} },
- {RSP_NONE, 121, 121, -1, 120, 0, {ACT_GETSTRING} },
-
-/* leave dle mode */
- {RSP_INIT, 0, 0, SEQ_DLE0, 201, 5, {0}, "^SDLE=0\r"},
- {RSP_OK, 201, 201, -1, 202, -1},
- {RSP_ZDLE, 202, 202, 0, 0, 0, {ACT_DLE0} },
- {RSP_NODEV, 200, 249, -1, 0, 0, {ACT_FAKEDLE0} },
- {RSP_ERROR, 200, 249, -1, 0, 0, {ACT_FAILDLE0} },
- {EV_TIMEOUT, 200, 249, -1, 0, 0, {ACT_FAILDLE0} },
-
-/* enter dle mode */
- {RSP_INIT, 0, 0, SEQ_DLE1, 251, 5, {0}, "^SDLE=1\r"},
- {RSP_OK, 251, 251, -1, 252, -1},
- {RSP_ZDLE, 252, 252, 1, 0, 0, {ACT_DLE1} },
- {RSP_ERROR, 250, 299, -1, 0, 0, {ACT_FAILDLE1} },
- {EV_TIMEOUT, 250, 299, -1, 0, 0, {ACT_FAILDLE1} },
-
-/* incoming call */
- {RSP_RING, -1, -1, -1, -1, -1, {ACT_RING} },
-
-/* get cid */
- {RSP_INIT, 0, 0, SEQ_CID, 301, 5, {0}, "^SGCI?\r"},
- {RSP_OK, 301, 301, -1, 302, -1},
- {RSP_ZGCI, 302, 302, -1, 0, 0, {ACT_CID} },
- {RSP_ERROR, 301, 349, -1, 0, 0, {ACT_FAILCID} },
- {EV_TIMEOUT, 301, 349, -1, 0, 0, {ACT_FAILCID} },
-
-/* enter cid mode */
- {RSP_INIT, 0, 0, SEQ_CIDMODE, 150, 5, {0}, "^SGCI=1\r"},
- {RSP_OK, 150, 150, -1, 0, 0, {ACT_CMODESET} },
- {RSP_ERROR, 150, 150, -1, 0, 0, {ACT_FAILCMODE} },
- {EV_TIMEOUT, 150, 150, -1, 0, 0, {ACT_FAILCMODE} },
-
-/* leave cid mode */
- {RSP_INIT, 0, 0, SEQ_UMMODE, 160, 5, {0}, "Z\r"},
- {RSP_OK, 160, 160, -1, 0, 0, {ACT_UMODESET} },
- {RSP_ERROR, 160, 160, -1, 0, 0, {ACT_FAILUMODE} },
- {EV_TIMEOUT, 160, 160, -1, 0, 0, {ACT_FAILUMODE} },
-
-/* abort getting cid */
- {RSP_INIT, 0, 0, SEQ_NOCID, 0, 0, {ACT_ABORTCID} },
-
-/* reset */
- {RSP_INIT, 0, 0, SEQ_SHUTDOWN, 504, 5, {0}, "Z\r"},
- {RSP_OK, 504, 504, -1, 0, 0, {ACT_SDOWN} },
- {RSP_ERROR, 501, 599, -1, 0, 0, {ACT_FAILSDOWN} },
- {EV_TIMEOUT, 501, 599, -1, 0, 0, {ACT_FAILSDOWN} },
- {RSP_NODEV, 501, 599, -1, 0, 0, {ACT_FAKESDOWN} },
-
- {EV_PROC_CIDMODE, -1, -1, -1, -1, -1, {ACT_PROC_CIDMODE} },
- {EV_IF_LOCK, -1, -1, -1, -1, -1, {ACT_IF_LOCK} },
- {EV_IF_VER, -1, -1, -1, -1, -1, {ACT_IF_VER} },
- {EV_START, -1, -1, -1, -1, -1, {ACT_START} },
- {EV_STOP, -1, -1, -1, -1, -1, {ACT_STOP} },
- {EV_SHUTDOWN, -1, -1, -1, -1, -1, {ACT_SHUTDOWN} },
-
-/* misc. */
- {RSP_ERROR, -1, -1, -1, -1, -1, {ACT_ERROR} },
- {RSP_ZCAU, -1, -1, -1, -1, -1, {ACT_ZCAU} },
- {RSP_NONE, -1, -1, -1, -1, -1, {ACT_DEBUG} },
- {RSP_ANY, -1, -1, -1, -1, -1, {ACT_WARN} },
- {RSP_LAST}
-};
-
-/* 600: start dialing, 650: dial in progress, 800: connection is up, 700: ring,
- * 400: hup, 750: accepted icall */
-struct reply_t gigaset_tab_cid[] =
-{
-/* resp_code, min_ConState, max_ConState, parameter, new_ConState, timeout,
- * action, command */
-
-/* dial */
- {EV_DIAL, -1, -1, -1, -1, -1, {ACT_DIAL} },
- {RSP_INIT, 0, 0, SEQ_DIAL, 601, 5, {ACT_CMD + AT_BC} },
- {RSP_OK, 601, 601, -1, 603, 5, {ACT_CMD + AT_PROTO} },
- {RSP_OK, 603, 603, -1, 604, 5, {ACT_CMD + AT_TYPE} },
- {RSP_OK, 604, 604, -1, 605, 5, {ACT_CMD + AT_MSN} },
- {RSP_NULL, 605, 605, -1, 606, 5, {ACT_CMD + AT_CLIP} },
- {RSP_OK, 605, 605, -1, 606, 5, {ACT_CMD + AT_CLIP} },
- {RSP_NULL, 606, 606, -1, 607, 5, {ACT_CMD + AT_ISO} },
- {RSP_OK, 606, 606, -1, 607, 5, {ACT_CMD + AT_ISO} },
- {RSP_OK, 607, 607, -1, 608, 5, {0}, "+VLS=17\r"},
- {RSP_OK, 608, 608, -1, 609, -1},
- {RSP_ZSAU, 609, 609, ZSAU_PROCEEDING, 610, 5, {ACT_CMD + AT_DIAL} },
- {RSP_OK, 610, 610, -1, 650, 0, {ACT_DIALING} },
-
- {RSP_ERROR, 601, 610, -1, 0, 0, {ACT_ABORTDIAL} },
- {EV_TIMEOUT, 601, 610, -1, 0, 0, {ACT_ABORTDIAL} },
-
-/* optional dialing responses */
- {EV_BC_OPEN, 650, 650, -1, 651, -1},
- {RSP_ZVLS, 609, 651, 17, -1, -1, {ACT_DEBUG} },
- {RSP_ZCTP, 610, 651, -1, -1, -1, {ACT_DEBUG} },
- {RSP_ZCPN, 610, 651, -1, -1, -1, {ACT_DEBUG} },
- {RSP_ZSAU, 650, 651, ZSAU_CALL_DELIVERED, -1, -1, {ACT_DEBUG} },
-
-/* connect */
- {RSP_ZSAU, 650, 650, ZSAU_ACTIVE, 800, -1, {ACT_CONNECT} },
- {RSP_ZSAU, 651, 651, ZSAU_ACTIVE, 800, -1, {ACT_CONNECT,
- ACT_NOTIFY_BC_UP} },
- {RSP_ZSAU, 750, 750, ZSAU_ACTIVE, 800, -1, {ACT_CONNECT} },
- {RSP_ZSAU, 751, 751, ZSAU_ACTIVE, 800, -1, {ACT_CONNECT,
- ACT_NOTIFY_BC_UP} },
- {EV_BC_OPEN, 800, 800, -1, 800, -1, {ACT_NOTIFY_BC_UP} },
-
-/* remote hangup */
- {RSP_ZSAU, 650, 651, ZSAU_DISCONNECT_IND, 0, 0, {ACT_REMOTEREJECT} },
- {RSP_ZSAU, 750, 751, ZSAU_DISCONNECT_IND, 0, 0, {ACT_REMOTEHUP} },
- {RSP_ZSAU, 800, 800, ZSAU_DISCONNECT_IND, 0, 0, {ACT_REMOTEHUP} },
-
-/* hangup */
- {EV_HUP, -1, -1, -1, -1, -1, {ACT_HUP} },
- {RSP_INIT, -1, -1, SEQ_HUP, 401, 5, {0}, "+VLS=0\r"},
- {RSP_OK, 401, 401, -1, 402, 5},
- {RSP_ZVLS, 402, 402, 0, 403, 5},
- {RSP_ZSAU, 403, 403, ZSAU_DISCONNECT_REQ, -1, -1, {ACT_DEBUG} },
- {RSP_ZSAU, 403, 403, ZSAU_NULL, 0, 0, {ACT_DISCONNECT} },
- {RSP_NODEV, 401, 403, -1, 0, 0, {ACT_FAKEHUP} },
- {RSP_ERROR, 401, 401, -1, 0, 0, {ACT_ABORTHUP} },
- {EV_TIMEOUT, 401, 403, -1, 0, 0, {ACT_ABORTHUP} },
-
- {EV_BC_CLOSED, 0, 0, -1, 0, -1, {ACT_NOTIFY_BC_DOWN} },
-
-/* ring */
- {RSP_ZBC, 700, 700, -1, -1, -1, {0} },
- {RSP_ZHLC, 700, 700, -1, -1, -1, {0} },
- {RSP_NMBR, 700, 700, -1, -1, -1, {0} },
- {RSP_ZCPN, 700, 700, -1, -1, -1, {0} },
- {RSP_ZCTP, 700, 700, -1, -1, -1, {0} },
- {EV_TIMEOUT, 700, 700, -1, 720, 720, {ACT_ICALL} },
- {EV_BC_CLOSED, 720, 720, -1, 0, -1, {ACT_NOTIFY_BC_DOWN} },
-
-/*accept icall*/
- {EV_ACCEPT, -1, -1, -1, -1, -1, {ACT_ACCEPT} },
- {RSP_INIT, 720, 720, SEQ_ACCEPT, 721, 5, {ACT_CMD + AT_PROTO} },
- {RSP_OK, 721, 721, -1, 722, 5, {ACT_CMD + AT_ISO} },
- {RSP_OK, 722, 722, -1, 723, 5, {0}, "+VLS=17\r"},
- {RSP_OK, 723, 723, -1, 724, 5, {0} },
- {RSP_ZVLS, 724, 724, 17, 750, 50, {ACT_ACCEPTED} },
- {RSP_ERROR, 721, 729, -1, 0, 0, {ACT_ABORTACCEPT} },
- {EV_TIMEOUT, 721, 729, -1, 0, 0, {ACT_ABORTACCEPT} },
- {RSP_ZSAU, 700, 729, ZSAU_NULL, 0, 0, {ACT_ABORTACCEPT} },
- {RSP_ZSAU, 700, 729, ZSAU_ACTIVE, 0, 0, {ACT_ABORTACCEPT} },
- {RSP_ZSAU, 700, 729, ZSAU_DISCONNECT_IND, 0, 0, {ACT_ABORTACCEPT} },
-
- {EV_BC_OPEN, 750, 750, -1, 751, -1},
- {EV_TIMEOUT, 750, 751, -1, 0, 0, {ACT_CONNTIMEOUT} },
-
-/* B channel closed (general case) */
- {EV_BC_CLOSED, -1, -1, -1, -1, -1, {ACT_NOTIFY_BC_DOWN} },
-
-/* misc. */
- {RSP_ZCON, -1, -1, -1, -1, -1, {ACT_DEBUG} },
- {RSP_ZCAU, -1, -1, -1, -1, -1, {ACT_ZCAU} },
- {RSP_NONE, -1, -1, -1, -1, -1, {ACT_DEBUG} },
- {RSP_ANY, -1, -1, -1, -1, -1, {ACT_WARN} },
- {RSP_LAST}
-};
-
-
-static const struct resp_type_t {
- char *response;
- int resp_code;
- int type;
-}
-resp_type[] =
-{
- {"OK", RSP_OK, RT_NOTHING},
- {"ERROR", RSP_ERROR, RT_NOTHING},
- {"ZSAU", RSP_ZSAU, RT_ZSAU},
- {"ZCAU", RSP_ZCAU, RT_ZCAU},
- {"RING", RSP_RING, RT_RING},
- {"ZGCI", RSP_ZGCI, RT_NUMBER},
- {"ZVLS", RSP_ZVLS, RT_NUMBER},
- {"ZCTP", RSP_ZCTP, RT_NUMBER},
- {"ZDLE", RSP_ZDLE, RT_NUMBER},
- {"ZHLC", RSP_ZHLC, RT_STRING},
- {"ZBC", RSP_ZBC, RT_STRING},
- {"NMBR", RSP_NMBR, RT_STRING},
- {"ZCPN", RSP_ZCPN, RT_STRING},
- {"ZCON", RSP_ZCON, RT_STRING},
- {NULL, 0, 0}
-};
-
-static const struct zsau_resp_t {
- char *str;
- int code;
-}
-zsau_resp[] =
-{
- {"OUTGOING_CALL_PROCEEDING", ZSAU_PROCEEDING},
- {"CALL_DELIVERED", ZSAU_CALL_DELIVERED},
- {"ACTIVE", ZSAU_ACTIVE},
- {"DISCONNECT_IND", ZSAU_DISCONNECT_IND},
- {"NULL", ZSAU_NULL},
- {"DISCONNECT_REQ", ZSAU_DISCONNECT_REQ},
- {NULL, ZSAU_UNKNOWN}
-};
-
-/* check for and remove fixed string prefix
- * If s starts with prefix terminated by a non-alphanumeric character,
- * return pointer to the first character after that, otherwise return NULL.
- */
-static char *skip_prefix(char *s, const char *prefix)
-{
- while (*prefix)
- if (*s++ != *prefix++)
- return NULL;
- if (isalnum(*s))
- return NULL;
- return s;
-}
-
-/* queue event with CID */
-static void add_cid_event(struct cardstate *cs, int cid, int type,
- void *ptr, int parameter)
-{
- unsigned long flags;
- unsigned next, tail;
- struct event_t *event;
-
- gig_dbg(DEBUG_EVENT, "queueing event %d for cid %d", type, cid);
-
- spin_lock_irqsave(&cs->ev_lock, flags);
-
- tail = cs->ev_tail;
- next = (tail + 1) % MAX_EVENTS;
- if (unlikely(next == cs->ev_head)) {
- dev_err(cs->dev, "event queue full\n");
- kfree(ptr);
- } else {
- event = cs->events + tail;
- event->type = type;
- event->cid = cid;
- event->ptr = ptr;
- event->arg = NULL;
- event->parameter = parameter;
- event->at_state = NULL;
- cs->ev_tail = next;
- }
-
- spin_unlock_irqrestore(&cs->ev_lock, flags);
-}
-
-/**
- * gigaset_handle_modem_response() - process received modem response
- * @cs: device descriptor structure.
- *
- * Called by asyncdata/isocdata if a block of data received from the
- * device must be processed as a modem command response. The data is
- * already in the cs structure.
- */
-void gigaset_handle_modem_response(struct cardstate *cs)
-{
- char *eoc, *psep, *ptr;
- const struct resp_type_t *rt;
- const struct zsau_resp_t *zr;
- int cid, parameter;
- u8 type, value;
-
- if (!cs->cbytes) {
- /* ignore additional LFs/CRs (M10x config mode or cx100) */
- gig_dbg(DEBUG_MCMD, "skipped EOL [%02X]", cs->respdata[0]);
- return;
- }
- cs->respdata[cs->cbytes] = 0;
-
- if (cs->at_state.getstring) {
- /* state machine wants next line verbatim */
- cs->at_state.getstring = 0;
- ptr = kstrdup(cs->respdata, GFP_ATOMIC);
- gig_dbg(DEBUG_EVENT, "string==%s", ptr ? ptr : "NULL");
- add_cid_event(cs, 0, RSP_STRING, ptr, 0);
- return;
- }
-
- /* look up response type */
- for (rt = resp_type; rt->response; ++rt) {
- eoc = skip_prefix(cs->respdata, rt->response);
- if (eoc)
- break;
- }
- if (!rt->response) {
- add_cid_event(cs, 0, RSP_NONE, NULL, 0);
- gig_dbg(DEBUG_EVENT, "unknown modem response: '%s'\n",
- cs->respdata);
- return;
- }
-
- /* check for CID */
- psep = strrchr(cs->respdata, ';');
- if (psep &&
- !kstrtoint(psep + 1, 10, &cid) &&
- cid >= 1 && cid <= 65535) {
- /* valid CID: chop it off */
- *psep = 0;
- } else {
- /* no valid CID: leave unchanged */
- cid = 0;
- }
-
- gig_dbg(DEBUG_EVENT, "CMD received: %s", cs->respdata);
- if (cid)
- gig_dbg(DEBUG_EVENT, "CID: %d", cid);
-
- switch (rt->type) {
- case RT_NOTHING:
- /* check parameter separator */
- if (*eoc)
- goto bad_param; /* extra parameter */
-
- add_cid_event(cs, cid, rt->resp_code, NULL, 0);
- break;
-
- case RT_RING:
- /* check parameter separator */
- if (!*eoc)
- eoc = NULL; /* no parameter */
- else if (*eoc++ != ',')
- goto bad_param;
-
- add_cid_event(cs, 0, rt->resp_code, NULL, cid);
-
- /* process parameters as individual responses */
- while (eoc) {
- /* look up parameter type */
- psep = NULL;
- for (rt = resp_type; rt->response; ++rt) {
- psep = skip_prefix(eoc, rt->response);
- if (psep)
- break;
- }
-
- /* all legal parameters are of type RT_STRING */
- if (!psep || rt->type != RT_STRING) {
- dev_warn(cs->dev,
- "illegal RING parameter: '%s'\n",
- eoc);
- return;
- }
-
- /* skip parameter value separator */
- if (*psep++ != '=')
- goto bad_param;
-
- /* look up end of parameter */
- eoc = strchr(psep, ',');
- if (eoc)
- *eoc++ = 0;
-
- /* retrieve parameter value */
- ptr = kstrdup(psep, GFP_ATOMIC);
-
- /* queue event */
- add_cid_event(cs, cid, rt->resp_code, ptr, 0);
- }
- break;
-
- case RT_ZSAU:
- /* check parameter separator */
- if (!*eoc) {
- /* no parameter */
- add_cid_event(cs, cid, rt->resp_code, NULL, ZSAU_NONE);
- break;
- }
- if (*eoc++ != '=')
- goto bad_param;
-
- /* look up parameter value */
- for (zr = zsau_resp; zr->str; ++zr)
- if (!strcmp(eoc, zr->str))
- break;
- if (!zr->str)
- goto bad_param;
-
- add_cid_event(cs, cid, rt->resp_code, NULL, zr->code);
- break;
-
- case RT_STRING:
- /* check parameter separator */
- if (*eoc++ != '=')
- goto bad_param;
-
- /* retrieve parameter value */
- ptr = kstrdup(eoc, GFP_ATOMIC);
-
- /* queue event */
- add_cid_event(cs, cid, rt->resp_code, ptr, 0);
- break;
-
- case RT_ZCAU:
- /* check parameter separators */
- if (*eoc++ != '=')
- goto bad_param;
- psep = strchr(eoc, ',');
- if (!psep)
- goto bad_param;
- *psep++ = 0;
-
- /* decode parameter values */
- if (kstrtou8(eoc, 16, &type) || kstrtou8(psep, 16, &value)) {
- *--psep = ',';
- goto bad_param;
- }
- parameter = (type << 8) | value;
-
- add_cid_event(cs, cid, rt->resp_code, NULL, parameter);
- break;
-
- case RT_NUMBER:
- /* check parameter separator */
- if (*eoc++ != '=')
- goto bad_param;
-
- /* decode parameter value */
- if (kstrtoint(eoc, 10, &parameter))
- goto bad_param;
-
- /* special case ZDLE: set flag before queueing event */
- if (rt->resp_code == RSP_ZDLE)
- cs->dle = parameter;
-
- add_cid_event(cs, cid, rt->resp_code, NULL, parameter);
- break;
-
-bad_param:
- /* parameter unexpected, incomplete or malformed */
- dev_warn(cs->dev, "bad parameter in response '%s'\n",
- cs->respdata);
- add_cid_event(cs, cid, rt->resp_code, NULL, -1);
- break;
-
- default:
- dev_err(cs->dev, "%s: internal error on '%s'\n",
- __func__, cs->respdata);
- }
-}
-EXPORT_SYMBOL_GPL(gigaset_handle_modem_response);
-
-/* disconnect_nobc
- * process closing of connection associated with given AT state structure
- * without B channel
- */
-static void disconnect_nobc(struct at_state_t **at_state_p,
- struct cardstate *cs)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&cs->lock, flags);
- ++(*at_state_p)->seq_index;
-
- /* revert to selected idle mode */
- if (!cs->cidmode) {
- cs->at_state.pending_commands |= PC_UMMODE;
- gig_dbg(DEBUG_EVENT, "Scheduling PC_UMMODE");
- cs->commands_pending = 1;
- }
-
- /* check for and deallocate temporary AT state */
- if (!list_empty(&(*at_state_p)->list)) {
- list_del(&(*at_state_p)->list);
- kfree(*at_state_p);
- *at_state_p = NULL;
- }
-
- spin_unlock_irqrestore(&cs->lock, flags);
-}
-
-/* disconnect_bc
- * process closing of connection associated with given AT state structure
- * and B channel
- */
-static void disconnect_bc(struct at_state_t *at_state,
- struct cardstate *cs, struct bc_state *bcs)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&cs->lock, flags);
- ++at_state->seq_index;
-
- /* revert to selected idle mode */
- if (!cs->cidmode) {
- cs->at_state.pending_commands |= PC_UMMODE;
- gig_dbg(DEBUG_EVENT, "Scheduling PC_UMMODE");
- cs->commands_pending = 1;
- }
- spin_unlock_irqrestore(&cs->lock, flags);
-
- /* invoke hardware specific handler */
- cs->ops->close_bchannel(bcs);
-
- /* notify LL */
- if (bcs->chstate & (CHS_D_UP | CHS_NOTIFY_LL)) {
- bcs->chstate &= ~(CHS_D_UP | CHS_NOTIFY_LL);
- gigaset_isdn_hupD(bcs);
- }
-}
-
-/* get_free_channel
- * get a free AT state structure: either one of those associated with the
- * B channels of the Gigaset device, or if none of those is available,
- * a newly allocated one with bcs=NULL
- * The structure should be freed by calling disconnect_nobc() after use.
- */
-static inline struct at_state_t *get_free_channel(struct cardstate *cs,
- int cid)
-/* cids: >0: siemens-cid
- * 0: without cid
- * -1: no cid assigned yet
- */
-{
- unsigned long flags;
- int i;
- struct at_state_t *ret;
-
- for (i = 0; i < cs->channels; ++i)
- if (gigaset_get_channel(cs->bcs + i) >= 0) {
- ret = &cs->bcs[i].at_state;
- ret->cid = cid;
- return ret;
- }
-
- spin_lock_irqsave(&cs->lock, flags);
- ret = kmalloc(sizeof(struct at_state_t), GFP_ATOMIC);
- if (ret) {
- gigaset_at_init(ret, NULL, cs, cid);
- list_add(&ret->list, &cs->temp_at_states);
- }
- spin_unlock_irqrestore(&cs->lock, flags);
- return ret;
-}
-
-static void init_failed(struct cardstate *cs, int mode)
-{
- int i;
- struct at_state_t *at_state;
-
- cs->at_state.pending_commands &= ~PC_INIT;
- cs->mode = mode;
- cs->mstate = MS_UNINITIALIZED;
- gigaset_free_channels(cs);
- for (i = 0; i < cs->channels; ++i) {
- at_state = &cs->bcs[i].at_state;
- if (at_state->pending_commands & PC_CID) {
- at_state->pending_commands &= ~PC_CID;
- at_state->pending_commands |= PC_NOCID;
- cs->commands_pending = 1;
- }
- }
-}
-
-static void schedule_init(struct cardstate *cs, int state)
-{
- if (cs->at_state.pending_commands & PC_INIT) {
- gig_dbg(DEBUG_EVENT, "not scheduling PC_INIT again");
- return;
- }
- cs->mstate = state;
- cs->mode = M_UNKNOWN;
- gigaset_block_channels(cs);
- cs->at_state.pending_commands |= PC_INIT;
- gig_dbg(DEBUG_EVENT, "Scheduling PC_INIT");
- cs->commands_pending = 1;
-}
-
-/* send an AT command
- * adding the "AT" prefix, cid and DLE encapsulation as appropriate
- */
-static void send_command(struct cardstate *cs, const char *cmd,
- struct at_state_t *at_state)
-{
- int cid = at_state->cid;
- struct cmdbuf_t *cb;
- size_t buflen;
-
- buflen = strlen(cmd) + 12; /* DLE ( A T 1 2 3 4 5 <cmd> DLE ) \0 */
- cb = kmalloc(sizeof(struct cmdbuf_t) + buflen, GFP_ATOMIC);
- if (!cb) {
- dev_err(cs->dev, "%s: out of memory\n", __func__);
- return;
- }
- if (cid > 0 && cid <= 65535)
- cb->len = snprintf(cb->buf, buflen,
- cs->dle ? "\020(AT%d%s\020)" : "AT%d%s",
- cid, cmd);
- else
- cb->len = snprintf(cb->buf, buflen,
- cs->dle ? "\020(AT%s\020)" : "AT%s",
- cmd);
- cb->offset = 0;
- cb->next = NULL;
- cb->wake_tasklet = NULL;
- cs->ops->write_cmd(cs, cb);
-}
-
-static struct at_state_t *at_state_from_cid(struct cardstate *cs, int cid)
-{
- struct at_state_t *at_state;
- int i;
- unsigned long flags;
-
- if (cid == 0)
- return &cs->at_state;
-
- for (i = 0; i < cs->channels; ++i)
- if (cid == cs->bcs[i].at_state.cid)
- return &cs->bcs[i].at_state;
-
- spin_lock_irqsave(&cs->lock, flags);
-
- list_for_each_entry(at_state, &cs->temp_at_states, list)
- if (cid == at_state->cid) {
- spin_unlock_irqrestore(&cs->lock, flags);
- return at_state;
- }
-
- spin_unlock_irqrestore(&cs->lock, flags);
-
- return NULL;
-}
-
-static void bchannel_down(struct bc_state *bcs)
-{
- if (bcs->chstate & CHS_B_UP) {
- bcs->chstate &= ~CHS_B_UP;
- gigaset_isdn_hupB(bcs);
- }
-
- if (bcs->chstate & (CHS_D_UP | CHS_NOTIFY_LL)) {
- bcs->chstate &= ~(CHS_D_UP | CHS_NOTIFY_LL);
- gigaset_isdn_hupD(bcs);
- }
-
- gigaset_free_channel(bcs);
-
- gigaset_bcs_reinit(bcs);
-}
-
-static void bchannel_up(struct bc_state *bcs)
-{
- if (bcs->chstate & CHS_B_UP) {
- dev_notice(bcs->cs->dev, "%s: B channel already up\n",
- __func__);
- return;
- }
-
- bcs->chstate |= CHS_B_UP;
- gigaset_isdn_connB(bcs);
-}
-
-static void start_dial(struct at_state_t *at_state, void *data,
- unsigned seq_index)
-{
- struct bc_state *bcs = at_state->bcs;
- struct cardstate *cs = at_state->cs;
- char **commands = data;
- unsigned long flags;
- int i;
-
- bcs->chstate |= CHS_NOTIFY_LL;
-
- spin_lock_irqsave(&cs->lock, flags);
- if (at_state->seq_index != seq_index) {
- spin_unlock_irqrestore(&cs->lock, flags);
- goto error;
- }
- spin_unlock_irqrestore(&cs->lock, flags);
-
- for (i = 0; i < AT_NUM; ++i) {
- kfree(bcs->commands[i]);
- bcs->commands[i] = commands[i];
- }
-
- at_state->pending_commands |= PC_CID;
- gig_dbg(DEBUG_EVENT, "Scheduling PC_CID");
- cs->commands_pending = 1;
- return;
-
-error:
- for (i = 0; i < AT_NUM; ++i) {
- kfree(commands[i]);
- commands[i] = NULL;
- }
- at_state->pending_commands |= PC_NOCID;
- gig_dbg(DEBUG_EVENT, "Scheduling PC_NOCID");
- cs->commands_pending = 1;
- return;
-}
-
-static void start_accept(struct at_state_t *at_state)
-{
- struct cardstate *cs = at_state->cs;
- struct bc_state *bcs = at_state->bcs;
- int i;
-
- for (i = 0; i < AT_NUM; ++i) {
- kfree(bcs->commands[i]);
- bcs->commands[i] = NULL;
- }
-
- bcs->commands[AT_PROTO] = kmalloc(9, GFP_ATOMIC);
- bcs->commands[AT_ISO] = kmalloc(9, GFP_ATOMIC);
- if (!bcs->commands[AT_PROTO] || !bcs->commands[AT_ISO]) {
- dev_err(at_state->cs->dev, "out of memory\n");
- /* error reset */
- at_state->pending_commands |= PC_HUP;
- gig_dbg(DEBUG_EVENT, "Scheduling PC_HUP");
- cs->commands_pending = 1;
- return;
- }
-
- snprintf(bcs->commands[AT_PROTO], 9, "^SBPR=%u\r", bcs->proto2);
- snprintf(bcs->commands[AT_ISO], 9, "^SISO=%u\r", bcs->channel + 1);
-
- at_state->pending_commands |= PC_ACCEPT;
- gig_dbg(DEBUG_EVENT, "Scheduling PC_ACCEPT");
- cs->commands_pending = 1;
-}
-
-static void do_start(struct cardstate *cs)
-{
- gigaset_free_channels(cs);
-
- if (cs->mstate != MS_LOCKED)
- schedule_init(cs, MS_INIT);
-
- cs->isdn_up = 1;
- gigaset_isdn_start(cs);
-
- cs->waiting = 0;
- wake_up(&cs->waitqueue);
-}
-
-static void finish_shutdown(struct cardstate *cs)
-{
- if (cs->mstate != MS_LOCKED) {
- cs->mstate = MS_UNINITIALIZED;
- cs->mode = M_UNKNOWN;
- }
-
- /* Tell the LL that the device is not available .. */
- if (cs->isdn_up) {
- cs->isdn_up = 0;
- gigaset_isdn_stop(cs);
- }
-
- /* The rest is done by cleanup_cs() in process context. */
-
- cs->cmd_result = -ENODEV;
- cs->waiting = 0;
- wake_up(&cs->waitqueue);
-}
-
-static void do_shutdown(struct cardstate *cs)
-{
- gigaset_block_channels(cs);
-
- if (cs->mstate == MS_READY) {
- cs->mstate = MS_SHUTDOWN;
- cs->at_state.pending_commands |= PC_SHUTDOWN;
- gig_dbg(DEBUG_EVENT, "Scheduling PC_SHUTDOWN");
- cs->commands_pending = 1;
- } else
- finish_shutdown(cs);
-}
-
-static void do_stop(struct cardstate *cs)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&cs->lock, flags);
- cs->connected = 0;
- spin_unlock_irqrestore(&cs->lock, flags);
-
- do_shutdown(cs);
-}
-
-/* Entering cid mode or getting a cid failed:
- * try to initialize the device and try again.
- *
- * channel >= 0: getting cid for the channel failed
- * channel < 0: entering cid mode failed
- *
- * returns 0 on success, <0 on failure
- */
-static int reinit_and_retry(struct cardstate *cs, int channel)
-{
- int i;
-
- if (--cs->retry_count <= 0)
- return -EFAULT;
-
- for (i = 0; i < cs->channels; ++i)
- if (cs->bcs[i].at_state.cid > 0)
- return -EBUSY;
-
- if (channel < 0)
- dev_warn(cs->dev,
- "Could not enter cid mode. Reinit device and try again.\n");
- else {
- dev_warn(cs->dev,
- "Could not get a call id. Reinit device and try again.\n");
- cs->bcs[channel].at_state.pending_commands |= PC_CID;
- }
- schedule_init(cs, MS_INIT);
- return 0;
-}
-
-static int at_state_invalid(struct cardstate *cs,
- struct at_state_t *test_ptr)
-{
- unsigned long flags;
- unsigned channel;
- struct at_state_t *at_state;
- int retval = 0;
-
- spin_lock_irqsave(&cs->lock, flags);
-
- if (test_ptr == &cs->at_state)
- goto exit;
-
- list_for_each_entry(at_state, &cs->temp_at_states, list)
- if (at_state == test_ptr)
- goto exit;
-
- for (channel = 0; channel < cs->channels; ++channel)
- if (&cs->bcs[channel].at_state == test_ptr)
- goto exit;
-
- retval = 1;
-exit:
- spin_unlock_irqrestore(&cs->lock, flags);
- return retval;
-}
-
-static void handle_icall(struct cardstate *cs, struct bc_state *bcs,
- struct at_state_t *at_state)
-{
- int retval;
-
- retval = gigaset_isdn_icall(at_state);
- switch (retval) {
- case ICALL_ACCEPT:
- break;
- default:
- dev_err(cs->dev, "internal error: disposition=%d\n", retval);
- /* fall through */
- case ICALL_IGNORE:
- case ICALL_REJECT:
- /* hang up actively
- * Device doc says that would reject the call.
- * In fact it doesn't.
- */
- at_state->pending_commands |= PC_HUP;
- cs->commands_pending = 1;
- break;
- }
-}
-
-static int do_lock(struct cardstate *cs)
-{
- int mode;
- int i;
-
- switch (cs->mstate) {
- case MS_UNINITIALIZED:
- case MS_READY:
- if (cs->cur_at_seq || !list_empty(&cs->temp_at_states) ||
- cs->at_state.pending_commands)
- return -EBUSY;
-
- for (i = 0; i < cs->channels; ++i)
- if (cs->bcs[i].at_state.pending_commands)
- return -EBUSY;
-
- if (gigaset_get_channels(cs) < 0)
- return -EBUSY;
-
- break;
- case MS_LOCKED:
- break;
- default:
- return -EBUSY;
- }
-
- mode = cs->mode;
- cs->mstate = MS_LOCKED;
- cs->mode = M_UNKNOWN;
-
- return mode;
-}
-
-static int do_unlock(struct cardstate *cs)
-{
- if (cs->mstate != MS_LOCKED)
- return -EINVAL;
-
- cs->mstate = MS_UNINITIALIZED;
- cs->mode = M_UNKNOWN;
- gigaset_free_channels(cs);
- if (cs->connected)
- schedule_init(cs, MS_INIT);
-
- return 0;
-}
-
-static void do_action(int action, struct cardstate *cs,
- struct bc_state *bcs,
- struct at_state_t **p_at_state, char **pp_command,
- int *p_genresp, int *p_resp_code,
- struct event_t *ev)
-{
- struct at_state_t *at_state = *p_at_state;
- struct bc_state *bcs2;
- unsigned long flags;
-
- int channel;
-
- unsigned char *s, *e;
- int i;
- unsigned long val;
-
- switch (action) {
- case ACT_NOTHING:
- break;
- case ACT_TIMEOUT:
- at_state->waiting = 1;
- break;
- case ACT_INIT:
- cs->at_state.pending_commands &= ~PC_INIT;
- cs->cur_at_seq = SEQ_NONE;
- cs->mode = M_UNIMODEM;
- spin_lock_irqsave(&cs->lock, flags);
- if (!cs->cidmode) {
- spin_unlock_irqrestore(&cs->lock, flags);
- gigaset_free_channels(cs);
- cs->mstate = MS_READY;
- break;
- }
- spin_unlock_irqrestore(&cs->lock, flags);
- cs->at_state.pending_commands |= PC_CIDMODE;
- gig_dbg(DEBUG_EVENT, "Scheduling PC_CIDMODE");
- cs->commands_pending = 1;
- break;
- case ACT_FAILINIT:
- dev_warn(cs->dev, "Could not initialize the device.\n");
- cs->dle = 0;
- init_failed(cs, M_UNKNOWN);
- cs->cur_at_seq = SEQ_NONE;
- break;
- case ACT_CONFIGMODE:
- init_failed(cs, M_CONFIG);
- cs->cur_at_seq = SEQ_NONE;
- break;
- case ACT_SETDLE1:
- cs->dle = 1;
- /* cs->inbuf[0].inputstate |= INS_command | INS_DLE_command; */
- cs->inbuf[0].inputstate &=
- ~(INS_command | INS_DLE_command);
- break;
- case ACT_SETDLE0:
- cs->dle = 0;
- cs->inbuf[0].inputstate =
- (cs->inbuf[0].inputstate & ~INS_DLE_command)
- | INS_command;
- break;
- case ACT_CMODESET:
- if (cs->mstate == MS_INIT || cs->mstate == MS_RECOVER) {
- gigaset_free_channels(cs);
- cs->mstate = MS_READY;
- }
- cs->mode = M_CID;
- cs->cur_at_seq = SEQ_NONE;
- break;
- case ACT_UMODESET:
- cs->mode = M_UNIMODEM;
- cs->cur_at_seq = SEQ_NONE;
- break;
- case ACT_FAILCMODE:
- cs->cur_at_seq = SEQ_NONE;
- if (cs->mstate == MS_INIT || cs->mstate == MS_RECOVER) {
- init_failed(cs, M_UNKNOWN);
- break;
- }
- if (reinit_and_retry(cs, -1) < 0)
- schedule_init(cs, MS_RECOVER);
- break;
- case ACT_FAILUMODE:
- cs->cur_at_seq = SEQ_NONE;
- schedule_init(cs, MS_RECOVER);
- break;
- case ACT_HUPMODEM:
- /* send "+++" (hangup in unimodem mode) */
- if (cs->connected) {
- struct cmdbuf_t *cb;
-
- cb = kmalloc(sizeof(struct cmdbuf_t) + 3, GFP_ATOMIC);
- if (!cb) {
- dev_err(cs->dev, "%s: out of memory\n",
- __func__);
- return;
- }
- memcpy(cb->buf, "+++", 3);
- cb->len = 3;
- cb->offset = 0;
- cb->next = NULL;
- cb->wake_tasklet = NULL;
- cs->ops->write_cmd(cs, cb);
- }
- break;
- case ACT_RING:
- /* get fresh AT state structure for new CID */
- at_state = get_free_channel(cs, ev->parameter);
- if (!at_state) {
- dev_warn(cs->dev,
- "RING ignored: could not allocate channel structure\n");
- break;
- }
-
- /* initialize AT state structure
- * note that bcs may be NULL if no B channel is free
- */
- at_state->ConState = 700;
- for (i = 0; i < STR_NUM; ++i) {
- kfree(at_state->str_var[i]);
- at_state->str_var[i] = NULL;
- }
- at_state->int_var[VAR_ZCTP] = -1;
-
- spin_lock_irqsave(&cs->lock, flags);
- at_state->timer_expires = RING_TIMEOUT;
- at_state->timer_active = 1;
- spin_unlock_irqrestore(&cs->lock, flags);
- break;
- case ACT_ICALL:
- handle_icall(cs, bcs, at_state);
- break;
- case ACT_FAILSDOWN:
- dev_warn(cs->dev, "Could not shut down the device.\n");
- /* fall through */
- case ACT_FAKESDOWN:
- case ACT_SDOWN:
- cs->cur_at_seq = SEQ_NONE;
- finish_shutdown(cs);
- break;
- case ACT_CONNECT:
- if (cs->onechannel) {
- at_state->pending_commands |= PC_DLE1;
- cs->commands_pending = 1;
- break;
- }
- bcs->chstate |= CHS_D_UP;
- gigaset_isdn_connD(bcs);
- cs->ops->init_bchannel(bcs);
- break;
- case ACT_DLE1:
- cs->cur_at_seq = SEQ_NONE;
- bcs = cs->bcs + cs->curchannel;
-
- bcs->chstate |= CHS_D_UP;
- gigaset_isdn_connD(bcs);
- cs->ops->init_bchannel(bcs);
- break;
- case ACT_FAKEHUP:
- at_state->int_var[VAR_ZSAU] = ZSAU_NULL;
- /* fall through */
- case ACT_DISCONNECT:
- cs->cur_at_seq = SEQ_NONE;
- at_state->cid = -1;
- if (!bcs) {
- disconnect_nobc(p_at_state, cs);
- } else if (cs->onechannel && cs->dle) {
- /* Check for other open channels not needed:
- * DLE only used for M10x with one B channel.
- */
- at_state->pending_commands |= PC_DLE0;
- cs->commands_pending = 1;
- } else {
- disconnect_bc(at_state, cs, bcs);
- }
- break;
- case ACT_FAKEDLE0:
- at_state->int_var[VAR_ZDLE] = 0;
- cs->dle = 0;
- /* fall through */
- case ACT_DLE0:
- cs->cur_at_seq = SEQ_NONE;
- bcs2 = cs->bcs + cs->curchannel;
- disconnect_bc(&bcs2->at_state, cs, bcs2);
- break;
- case ACT_ABORTHUP:
- cs->cur_at_seq = SEQ_NONE;
- dev_warn(cs->dev, "Could not hang up.\n");
- at_state->cid = -1;
- if (!bcs)
- disconnect_nobc(p_at_state, cs);
- else if (cs->onechannel)
- at_state->pending_commands |= PC_DLE0;
- else
- disconnect_bc(at_state, cs, bcs);
- schedule_init(cs, MS_RECOVER);
- break;
- case ACT_FAILDLE0:
- cs->cur_at_seq = SEQ_NONE;
- dev_warn(cs->dev, "Error leaving DLE mode.\n");
- cs->dle = 0;
- bcs2 = cs->bcs + cs->curchannel;
- disconnect_bc(&bcs2->at_state, cs, bcs2);
- schedule_init(cs, MS_RECOVER);
- break;
- case ACT_FAILDLE1:
- cs->cur_at_seq = SEQ_NONE;
- dev_warn(cs->dev,
- "Could not enter DLE mode. Trying to hang up.\n");
- channel = cs->curchannel;
- cs->bcs[channel].at_state.pending_commands |= PC_HUP;
- cs->commands_pending = 1;
- break;
-
- case ACT_CID: /* got cid; start dialing */
- cs->cur_at_seq = SEQ_NONE;
- channel = cs->curchannel;
- if (ev->parameter > 0 && ev->parameter <= 65535) {
- cs->bcs[channel].at_state.cid = ev->parameter;
- cs->bcs[channel].at_state.pending_commands |=
- PC_DIAL;
- cs->commands_pending = 1;
- break;
- }
- /* fall through - bad cid */
- case ACT_FAILCID:
- cs->cur_at_seq = SEQ_NONE;
- channel = cs->curchannel;
- if (reinit_and_retry(cs, channel) < 0) {
- dev_warn(cs->dev,
- "Could not get a call ID. Cannot dial.\n");
- bcs2 = cs->bcs + channel;
- disconnect_bc(&bcs2->at_state, cs, bcs2);
- }
- break;
- case ACT_ABORTCID:
- cs->cur_at_seq = SEQ_NONE;
- bcs2 = cs->bcs + cs->curchannel;
- disconnect_bc(&bcs2->at_state, cs, bcs2);
- break;
-
- case ACT_DIALING:
- case ACT_ACCEPTED:
- cs->cur_at_seq = SEQ_NONE;
- break;
-
- case ACT_ABORTACCEPT: /* hangup/error/timeout during ICALL procssng */
- if (bcs)
- disconnect_bc(at_state, cs, bcs);
- else
- disconnect_nobc(p_at_state, cs);
- break;
-
- case ACT_ABORTDIAL: /* error/timeout during dial preparation */
- cs->cur_at_seq = SEQ_NONE;
- at_state->pending_commands |= PC_HUP;
- cs->commands_pending = 1;
- break;
-
- case ACT_REMOTEREJECT: /* DISCONNECT_IND after dialling */
- case ACT_CONNTIMEOUT: /* timeout waiting for ZSAU=ACTIVE */
- case ACT_REMOTEHUP: /* DISCONNECT_IND with established connection */
- at_state->pending_commands |= PC_HUP;
- cs->commands_pending = 1;
- break;
- case ACT_GETSTRING: /* warning: RING, ZDLE, ...
- are not handled properly anymore */
- at_state->getstring = 1;
- break;
- case ACT_SETVER:
- if (!ev->ptr) {
- *p_genresp = 1;
- *p_resp_code = RSP_ERROR;
- break;
- }
- s = ev->ptr;
-
- if (!strcmp(s, "OK")) {
- /* OK without version string: assume old response */
- *p_genresp = 1;
- *p_resp_code = RSP_NONE;
- break;
- }
-
- for (i = 0; i < 4; ++i) {
- val = simple_strtoul(s, (char **) &e, 10);
- if (val > INT_MAX || e == s)
- break;
- if (i == 3) {
- if (*e)
- break;
- } else if (*e != '.')
- break;
- else
- s = e + 1;
- cs->fwver[i] = val;
- }
- if (i != 4) {
- *p_genresp = 1;
- *p_resp_code = RSP_ERROR;
- break;
- }
- cs->gotfwver = 0;
- break;
- case ACT_GOTVER:
- if (cs->gotfwver == 0) {
- cs->gotfwver = 1;
- gig_dbg(DEBUG_EVENT,
- "firmware version %02d.%03d.%02d.%02d",
- cs->fwver[0], cs->fwver[1],
- cs->fwver[2], cs->fwver[3]);
- break;
- }
- /* fall through */
- case ACT_FAILVER:
- cs->gotfwver = -1;
- dev_err(cs->dev, "could not read firmware version.\n");
- break;
- case ACT_ERROR:
- gig_dbg(DEBUG_ANY, "%s: ERROR response in ConState %d",
- __func__, at_state->ConState);
- cs->cur_at_seq = SEQ_NONE;
- break;
- case ACT_DEBUG:
- gig_dbg(DEBUG_ANY, "%s: resp_code %d in ConState %d",
- __func__, ev->type, at_state->ConState);
- break;
- case ACT_WARN:
- dev_warn(cs->dev, "%s: resp_code %d in ConState %d!\n",
- __func__, ev->type, at_state->ConState);
- break;
- case ACT_ZCAU:
- dev_warn(cs->dev, "cause code %04x in connection state %d.\n",
- ev->parameter, at_state->ConState);
- break;
-
- /* events from the LL */
-
- case ACT_DIAL:
- if (!ev->ptr) {
- *p_genresp = 1;
- *p_resp_code = RSP_ERROR;
- break;
- }
- start_dial(at_state, ev->ptr, ev->parameter);
- break;
- case ACT_ACCEPT:
- start_accept(at_state);
- break;
- case ACT_HUP:
- at_state->pending_commands |= PC_HUP;
- gig_dbg(DEBUG_EVENT, "Scheduling PC_HUP");
- cs->commands_pending = 1;
- break;
-
- /* hotplug events */
-
- case ACT_STOP:
- do_stop(cs);
- break;
- case ACT_START:
- do_start(cs);
- break;
-
- /* events from the interface */
-
- case ACT_IF_LOCK:
- cs->cmd_result = ev->parameter ? do_lock(cs) : do_unlock(cs);
- cs->waiting = 0;
- wake_up(&cs->waitqueue);
- break;
- case ACT_IF_VER:
- if (ev->parameter != 0)
- cs->cmd_result = -EINVAL;
- else if (cs->gotfwver != 1) {
- cs->cmd_result = -ENOENT;
- } else {
- memcpy(ev->arg, cs->fwver, sizeof cs->fwver);
- cs->cmd_result = 0;
- }
- cs->waiting = 0;
- wake_up(&cs->waitqueue);
- break;
-
- /* events from the proc file system */
-
- case ACT_PROC_CIDMODE:
- spin_lock_irqsave(&cs->lock, flags);
- if (ev->parameter != cs->cidmode) {
- cs->cidmode = ev->parameter;
- if (ev->parameter) {
- cs->at_state.pending_commands |= PC_CIDMODE;
- gig_dbg(DEBUG_EVENT, "Scheduling PC_CIDMODE");
- } else {
- cs->at_state.pending_commands |= PC_UMMODE;
- gig_dbg(DEBUG_EVENT, "Scheduling PC_UMMODE");
- }
- cs->commands_pending = 1;
- }
- spin_unlock_irqrestore(&cs->lock, flags);
- cs->waiting = 0;
- wake_up(&cs->waitqueue);
- break;
-
- /* events from the hardware drivers */
-
- case ACT_NOTIFY_BC_DOWN:
- bchannel_down(bcs);
- break;
- case ACT_NOTIFY_BC_UP:
- bchannel_up(bcs);
- break;
- case ACT_SHUTDOWN:
- do_shutdown(cs);
- break;
-
-
- default:
- if (action >= ACT_CMD && action < ACT_CMD + AT_NUM) {
- *pp_command = at_state->bcs->commands[action - ACT_CMD];
- if (!*pp_command) {
- *p_genresp = 1;
- *p_resp_code = RSP_NULL;
- }
- } else
- dev_err(cs->dev, "%s: action==%d!\n", __func__, action);
- }
-}
-
-/* State machine to do the calling and hangup procedure */
-static void process_event(struct cardstate *cs, struct event_t *ev)
-{
- struct bc_state *bcs;
- char *p_command = NULL;
- struct reply_t *rep;
- int rcode;
- int genresp = 0;
- int resp_code = RSP_ERROR;
- struct at_state_t *at_state;
- int index;
- int curact;
- unsigned long flags;
-
- if (ev->cid >= 0) {
- at_state = at_state_from_cid(cs, ev->cid);
- if (!at_state) {
- gig_dbg(DEBUG_EVENT, "event %d for invalid cid %d",
- ev->type, ev->cid);
- gigaset_add_event(cs, &cs->at_state, RSP_WRONG_CID,
- NULL, 0, NULL);
- return;
- }
- } else {
- at_state = ev->at_state;
- if (at_state_invalid(cs, at_state)) {
- gig_dbg(DEBUG_EVENT, "event for invalid at_state %p",
- at_state);
- return;
- }
- }
-
- gig_dbg(DEBUG_EVENT, "connection state %d, event %d",
- at_state->ConState, ev->type);
-
- bcs = at_state->bcs;
-
- /* Setting the pointer to the dial array */
- rep = at_state->replystruct;
-
- spin_lock_irqsave(&cs->lock, flags);
- if (ev->type == EV_TIMEOUT) {
- if (ev->parameter != at_state->timer_index
- || !at_state->timer_active) {
- ev->type = RSP_NONE; /* old timeout */
- gig_dbg(DEBUG_EVENT, "old timeout");
- } else {
- if (at_state->waiting)
- gig_dbg(DEBUG_EVENT, "stopped waiting");
- else
- gig_dbg(DEBUG_EVENT, "timeout occurred");
- }
- }
- spin_unlock_irqrestore(&cs->lock, flags);
-
- /* if the response belongs to a variable in at_state->int_var[VAR_XXXX]
- or at_state->str_var[STR_XXXX], set it */
- if (ev->type >= RSP_VAR && ev->type < RSP_VAR + VAR_NUM) {
- index = ev->type - RSP_VAR;
- at_state->int_var[index] = ev->parameter;
- } else if (ev->type >= RSP_STR && ev->type < RSP_STR + STR_NUM) {
- index = ev->type - RSP_STR;
- kfree(at_state->str_var[index]);
- at_state->str_var[index] = ev->ptr;
- ev->ptr = NULL; /* prevent process_events() from
- deallocating ptr */
- }
-
- if (ev->type == EV_TIMEOUT || ev->type == RSP_STRING)
- at_state->getstring = 0;
-
- /* Search row in dial array which matches modem response and current
- constate */
- for (;; rep++) {
- rcode = rep->resp_code;
- if (rcode == RSP_LAST) {
- /* found nothing...*/
- dev_warn(cs->dev, "%s: rcode=RSP_LAST: "
- "resp_code %d in ConState %d!\n",
- __func__, ev->type, at_state->ConState);
- return;
- }
- if ((rcode == RSP_ANY || rcode == ev->type)
- && ((int) at_state->ConState >= rep->min_ConState)
- && (rep->max_ConState < 0
- || (int) at_state->ConState <= rep->max_ConState)
- && (rep->parameter < 0 || rep->parameter == ev->parameter))
- break;
- }
-
- p_command = rep->command;
-
- at_state->waiting = 0;
- for (curact = 0; curact < MAXACT; ++curact) {
- /* The row tells us what we should do ..
- */
- do_action(rep->action[curact], cs, bcs, &at_state, &p_command,
- &genresp, &resp_code, ev);
- if (!at_state)
- /* at_state destroyed by disconnect */
- return;
- }
-
- /* Jump to the next con-state regarding the array */
- if (rep->new_ConState >= 0)
- at_state->ConState = rep->new_ConState;
-
- if (genresp) {
- spin_lock_irqsave(&cs->lock, flags);
- at_state->timer_expires = 0;
- at_state->timer_active = 0;
- spin_unlock_irqrestore(&cs->lock, flags);
- gigaset_add_event(cs, at_state, resp_code, NULL, 0, NULL);
- } else {
- /* Send command to modem if not NULL... */
- if (p_command) {
- if (cs->connected)
- send_command(cs, p_command, at_state);
- else
- gigaset_add_event(cs, at_state, RSP_NODEV,
- NULL, 0, NULL);
- }
-
- spin_lock_irqsave(&cs->lock, flags);
- if (!rep->timeout) {
- at_state->timer_expires = 0;
- at_state->timer_active = 0;
- } else if (rep->timeout > 0) { /* new timeout */
- at_state->timer_expires = rep->timeout * 10;
- at_state->timer_active = 1;
- ++at_state->timer_index;
- }
- spin_unlock_irqrestore(&cs->lock, flags);
- }
-}
-
-static void schedule_sequence(struct cardstate *cs,
- struct at_state_t *at_state, int sequence)
-{
- cs->cur_at_seq = sequence;
- gigaset_add_event(cs, at_state, RSP_INIT, NULL, sequence, NULL);
-}
-
-static void process_command_flags(struct cardstate *cs)
-{
- struct at_state_t *at_state = NULL;
- struct bc_state *bcs;
- int i;
- int sequence;
- unsigned long flags;
-
- cs->commands_pending = 0;
-
- if (cs->cur_at_seq) {
- gig_dbg(DEBUG_EVENT, "not searching scheduled commands: busy");
- return;
- }
-
- gig_dbg(DEBUG_EVENT, "searching scheduled commands");
-
- sequence = SEQ_NONE;
-
- /* clear pending_commands and hangup channels on shutdown */
- if (cs->at_state.pending_commands & PC_SHUTDOWN) {
- cs->at_state.pending_commands &= ~PC_CIDMODE;
- for (i = 0; i < cs->channels; ++i) {
- bcs = cs->bcs + i;
- at_state = &bcs->at_state;
- at_state->pending_commands &=
- ~(PC_DLE1 | PC_ACCEPT | PC_DIAL);
- if (at_state->cid > 0)
- at_state->pending_commands |= PC_HUP;
- if (at_state->pending_commands & PC_CID) {
- at_state->pending_commands |= PC_NOCID;
- at_state->pending_commands &= ~PC_CID;
- }
- }
- }
-
- /* clear pending_commands and hangup channels on reset */
- if (cs->at_state.pending_commands & PC_INIT) {
- cs->at_state.pending_commands &= ~PC_CIDMODE;
- for (i = 0; i < cs->channels; ++i) {
- bcs = cs->bcs + i;
- at_state = &bcs->at_state;
- at_state->pending_commands &=
- ~(PC_DLE1 | PC_ACCEPT | PC_DIAL);
- if (at_state->cid > 0)
- at_state->pending_commands |= PC_HUP;
- if (cs->mstate == MS_RECOVER) {
- if (at_state->pending_commands & PC_CID) {
- at_state->pending_commands |= PC_NOCID;
- at_state->pending_commands &= ~PC_CID;
- }
- }
- }
- }
-
- /* only switch back to unimodem mode if no commands are pending and
- * no channels are up */
- spin_lock_irqsave(&cs->lock, flags);
- if (cs->at_state.pending_commands == PC_UMMODE
- && !cs->cidmode
- && list_empty(&cs->temp_at_states)
- && cs->mode == M_CID) {
- sequence = SEQ_UMMODE;
- at_state = &cs->at_state;
- for (i = 0; i < cs->channels; ++i) {
- bcs = cs->bcs + i;
- if (bcs->at_state.pending_commands ||
- bcs->at_state.cid > 0) {
- sequence = SEQ_NONE;
- break;
- }
- }
- }
- spin_unlock_irqrestore(&cs->lock, flags);
- cs->at_state.pending_commands &= ~PC_UMMODE;
- if (sequence != SEQ_NONE) {
- schedule_sequence(cs, at_state, sequence);
- return;
- }
-
- for (i = 0; i < cs->channels; ++i) {
- bcs = cs->bcs + i;
- if (bcs->at_state.pending_commands & PC_HUP) {
- if (cs->dle) {
- cs->curchannel = bcs->channel;
- schedule_sequence(cs, &cs->at_state, SEQ_DLE0);
- return;
- }
- bcs->at_state.pending_commands &= ~PC_HUP;
- if (bcs->at_state.pending_commands & PC_CID) {
- /* not yet dialing: PC_NOCID is sufficient */
- bcs->at_state.pending_commands |= PC_NOCID;
- bcs->at_state.pending_commands &= ~PC_CID;
- } else {
- schedule_sequence(cs, &bcs->at_state, SEQ_HUP);
- return;
- }
- }
- if (bcs->at_state.pending_commands & PC_NOCID) {
- bcs->at_state.pending_commands &= ~PC_NOCID;
- cs->curchannel = bcs->channel;
- schedule_sequence(cs, &cs->at_state, SEQ_NOCID);
- return;
- } else if (bcs->at_state.pending_commands & PC_DLE0) {
- bcs->at_state.pending_commands &= ~PC_DLE0;
- cs->curchannel = bcs->channel;
- schedule_sequence(cs, &cs->at_state, SEQ_DLE0);
- return;
- }
- }
-
- list_for_each_entry(at_state, &cs->temp_at_states, list)
- if (at_state->pending_commands & PC_HUP) {
- at_state->pending_commands &= ~PC_HUP;
- schedule_sequence(cs, at_state, SEQ_HUP);
- return;
- }
-
- if (cs->at_state.pending_commands & PC_INIT) {
- cs->at_state.pending_commands &= ~PC_INIT;
- cs->dle = 0;
- cs->inbuf->inputstate = INS_command;
- schedule_sequence(cs, &cs->at_state, SEQ_INIT);
- return;
- }
- if (cs->at_state.pending_commands & PC_SHUTDOWN) {
- cs->at_state.pending_commands &= ~PC_SHUTDOWN;
- schedule_sequence(cs, &cs->at_state, SEQ_SHUTDOWN);
- return;
- }
- if (cs->at_state.pending_commands & PC_CIDMODE) {
- cs->at_state.pending_commands &= ~PC_CIDMODE;
- if (cs->mode == M_UNIMODEM) {
- cs->retry_count = 1;
- schedule_sequence(cs, &cs->at_state, SEQ_CIDMODE);
- return;
- }
- }
-
- for (i = 0; i < cs->channels; ++i) {
- bcs = cs->bcs + i;
- if (bcs->at_state.pending_commands & PC_DLE1) {
- bcs->at_state.pending_commands &= ~PC_DLE1;
- cs->curchannel = bcs->channel;
- schedule_sequence(cs, &cs->at_state, SEQ_DLE1);
- return;
- }
- if (bcs->at_state.pending_commands & PC_ACCEPT) {
- bcs->at_state.pending_commands &= ~PC_ACCEPT;
- schedule_sequence(cs, &bcs->at_state, SEQ_ACCEPT);
- return;
- }
- if (bcs->at_state.pending_commands & PC_DIAL) {
- bcs->at_state.pending_commands &= ~PC_DIAL;
- schedule_sequence(cs, &bcs->at_state, SEQ_DIAL);
- return;
- }
- if (bcs->at_state.pending_commands & PC_CID) {
- switch (cs->mode) {
- case M_UNIMODEM:
- cs->at_state.pending_commands |= PC_CIDMODE;
- gig_dbg(DEBUG_EVENT, "Scheduling PC_CIDMODE");
- cs->commands_pending = 1;
- return;
- case M_UNKNOWN:
- schedule_init(cs, MS_INIT);
- return;
- }
- bcs->at_state.pending_commands &= ~PC_CID;
- cs->curchannel = bcs->channel;
- cs->retry_count = 2;
- schedule_sequence(cs, &cs->at_state, SEQ_CID);
- return;
- }
- }
-}
-
-static void process_events(struct cardstate *cs)
-{
- struct event_t *ev;
- unsigned head, tail;
- int i;
- int check_flags = 0;
- int was_busy;
- unsigned long flags;
-
- spin_lock_irqsave(&cs->ev_lock, flags);
- head = cs->ev_head;
-
- for (i = 0; i < 2 * MAX_EVENTS; ++i) {
- tail = cs->ev_tail;
- if (tail == head) {
- if (!check_flags && !cs->commands_pending)
- break;
- check_flags = 0;
- spin_unlock_irqrestore(&cs->ev_lock, flags);
- process_command_flags(cs);
- spin_lock_irqsave(&cs->ev_lock, flags);
- tail = cs->ev_tail;
- if (tail == head) {
- if (!cs->commands_pending)
- break;
- continue;
- }
- }
-
- ev = cs->events + head;
- was_busy = cs->cur_at_seq != SEQ_NONE;
- spin_unlock_irqrestore(&cs->ev_lock, flags);
- process_event(cs, ev);
- spin_lock_irqsave(&cs->ev_lock, flags);
- kfree(ev->ptr);
- ev->ptr = NULL;
- if (was_busy && cs->cur_at_seq == SEQ_NONE)
- check_flags = 1;
-
- head = (head + 1) % MAX_EVENTS;
- cs->ev_head = head;
- }
-
- spin_unlock_irqrestore(&cs->ev_lock, flags);
-
- if (i == 2 * MAX_EVENTS) {
- dev_err(cs->dev,
- "infinite loop in process_events; aborting.\n");
- }
-}
-
-/* tasklet scheduled on any event received from the Gigaset device
- * parameter:
- * data ISDN controller state structure
- */
-void gigaset_handle_event(unsigned long data)
-{
- struct cardstate *cs = (struct cardstate *) data;
-
- /* handle incoming data on control/common channel */
- if (cs->inbuf->head != cs->inbuf->tail) {
- gig_dbg(DEBUG_INTR, "processing new data");
- cs->ops->handle_input(cs->inbuf);
- }
-
- process_events(cs);
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-01 12:34:11 +0000