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-rw-r--r--drivers/isdn/gigaset/gigaset.h600
1 files changed, 284 insertions, 316 deletions
diff --git a/drivers/isdn/gigaset/gigaset.h b/drivers/isdn/gigaset/gigaset.h
index 729edcdb6dac..9d21ba8757b0 100644
--- a/drivers/isdn/gigaset/gigaset.h
+++ b/drivers/isdn/gigaset/gigaset.h
@@ -1,11 +1,16 @@
1/* Siemens Gigaset 307x driver 1/*
2 * Siemens Gigaset 307x driver
2 * Common header file for all connection variants 3 * Common header file for all connection variants
3 * 4 *
4 * Written by Stefan Eilers <Eilers.Stefan@epost.de> 5 * Written by Stefan Eilers
5 * and Hansjoerg Lipp <hjlipp@web.de> 6 * and Hansjoerg Lipp <hjlipp@web.de>
6 * 7 *
7 * Version: $Id: gigaset.h,v 1.97.4.26 2006/02/04 18:28:16 hjlipp Exp $ 8 * =====================================================================
8 * =========================================================================== 9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
13 * =====================================================================
9 */ 14 */
10 15
11#ifndef GIGASET_H 16#ifndef GIGASET_H
@@ -15,7 +20,6 @@
15#include <linux/kernel.h> 20#include <linux/kernel.h>
16#include <linux/compiler.h> 21#include <linux/compiler.h>
17#include <linux/types.h> 22#include <linux/types.h>
18#include <asm/atomic.h>
19#include <linux/spinlock.h> 23#include <linux/spinlock.h>
20#include <linux/isdnif.h> 24#include <linux/isdnif.h>
21#include <linux/usb.h> 25#include <linux/usb.h>
@@ -27,21 +31,22 @@
27#include <linux/tty.h> 31#include <linux/tty.h>
28#include <linux/tty_driver.h> 32#include <linux/tty_driver.h>
29#include <linux/list.h> 33#include <linux/list.h>
34#include <asm/atomic.h>
30 35
31#define GIG_VERSION {0,5,0,0} 36#define GIG_VERSION {0,5,0,0}
32#define GIG_COMPAT {0,4,0,0} 37#define GIG_COMPAT {0,4,0,0}
33 38
34#define MAX_REC_PARAMS 10 /* Max. number of params in response string */ 39#define MAX_REC_PARAMS 10 /* Max. number of params in response string */
35#define MAX_RESP_SIZE 512 /* Max. size of a response string */ 40#define MAX_RESP_SIZE 512 /* Max. size of a response string */
36#define HW_HDR_LEN 2 /* Header size used to store ack info */ 41#define HW_HDR_LEN 2 /* Header size used to store ack info */
37 42
38#define MAX_EVENTS 64 /* size of event queue */ 43#define MAX_EVENTS 64 /* size of event queue */
39 44
40#define RBUFSIZE 8192 45#define RBUFSIZE 8192
41#define SBUFSIZE 4096 /* sk_buff payload size */ 46#define SBUFSIZE 4096 /* sk_buff payload size */
42 47
43#define MAX_BUF_SIZE (SBUFSIZE - 2) /* Max. size of a data packet from LL */ 48#define TRANSBUFSIZE 768 /* bytes per skb for transparent receive */
44#define TRANSBUFSIZE 768 /* bytes per skb for transparent receive */ 49#define MAX_BUF_SIZE (SBUFSIZE - 2) /* Max. size of a data packet from LL */
45 50
46/* compile time options */ 51/* compile time options */
47#define GIG_MAJOR 0 52#define GIG_MAJOR 0
@@ -50,10 +55,7 @@
50#define GIG_RETRYCID 55#define GIG_RETRYCID
51#define GIG_X75 56#define GIG_X75
52 57
53#define MAX_TIMER_INDEX 1000 58#define GIG_TICK 100 /* in milliseconds */
54#define MAX_SEQ_INDEX 1000
55
56#define GIG_TICK (HZ / 10)
57 59
58/* timeout values (unit: 1 sec) */ 60/* timeout values (unit: 1 sec) */
59#define INIT_TIMEOUT 1 61#define INIT_TIMEOUT 1
@@ -67,74 +69,89 @@
67 69
68#define MAXACT 3 70#define MAXACT 3
69 71
70#define IFNULL(a) if (unlikely(!(a)))
71#define IFNULLRET(a) if (unlikely(!(a))) {err("%s==NULL at %s:%d!", #a, __FILE__, __LINE__); return; }
72#define IFNULLRETVAL(a,b) if (unlikely(!(a))) {err("%s==NULL at %s:%d!", #a, __FILE__, __LINE__); return (b); }
73#define IFNULLCONT(a) if (unlikely(!(a))) {err("%s==NULL at %s:%d!", #a, __FILE__, __LINE__); continue; }
74#define IFNULLGOTO(a,b) if (unlikely(!(a))) {err("%s==NULL at %s:%d!", #a, __FILE__, __LINE__); goto b; }
75
76extern int gigaset_debuglevel; /* "needs" cast to (enum debuglevel) */ 72extern int gigaset_debuglevel; /* "needs" cast to (enum debuglevel) */
77 73
78/* any combination of these can be given with the 'debug=' parameter to insmod, e.g. 74/* any combination of these can be given with the 'debug=' parameter to insmod,
79 * 'insmod usb_gigaset.o debug=0x2c' will set DEBUG_OPEN, DEBUG_CMD and DEBUG_INTR. */ 75 * e.g. 'insmod usb_gigaset.o debug=0x2c' will set DEBUG_OPEN, DEBUG_CMD and
76 * DEBUG_INTR.
77 */
80enum debuglevel { /* up to 24 bits (atomic_t) */ 78enum debuglevel { /* up to 24 bits (atomic_t) */
81 DEBUG_REG = 0x0002, /* serial port I/O register operations */ 79 DEBUG_REG = 0x0002, /* serial port I/O register operations */
82 DEBUG_OPEN = 0x0004, /* open/close serial port */ 80 DEBUG_OPEN = 0x0004, /* open/close serial port */
83 DEBUG_INTR = 0x0008, /* interrupt processing */ 81 DEBUG_INTR = 0x0008, /* interrupt processing */
84 DEBUG_INTR_DUMP = 0x0010, /* Activating hexdump debug output on interrupt 82 DEBUG_INTR_DUMP = 0x0010, /* Activating hexdump debug output on
85 requests, not available as run-time option */ 83 interrupt requests, not available as
84 run-time option */
86 DEBUG_CMD = 0x00020, /* sent/received LL commands */ 85 DEBUG_CMD = 0x00020, /* sent/received LL commands */
87 DEBUG_STREAM = 0x00040, /* application data stream I/O events */ 86 DEBUG_STREAM = 0x00040, /* application data stream I/O events */
88 DEBUG_STREAM_DUMP = 0x00080, /* application data stream content */ 87 DEBUG_STREAM_DUMP = 0x00080, /* application data stream content */
89 DEBUG_LLDATA = 0x00100, /* sent/received LL data */ 88 DEBUG_LLDATA = 0x00100, /* sent/received LL data */
90 DEBUG_INTR_0 = 0x00200, /* serial port output interrupt processing */ 89 DEBUG_INTR_0 = 0x00200, /* serial port interrupt processing */
91 DEBUG_DRIVER = 0x00400, /* driver structure */ 90 DEBUG_DRIVER = 0x00400, /* driver structure */
92 DEBUG_HDLC = 0x00800, /* M10x HDLC processing */ 91 DEBUG_HDLC = 0x00800, /* M10x HDLC processing */
93 DEBUG_WRITE = 0x01000, /* M105 data write */ 92 DEBUG_WRITE = 0x01000, /* M105 data write */
94 DEBUG_TRANSCMD = 0x02000, /*AT-COMMANDS+RESPONSES*/ 93 DEBUG_TRANSCMD = 0x02000, /* AT-COMMANDS+RESPONSES */
95 DEBUG_MCMD = 0x04000, /*COMMANDS THAT ARE SENT VERY OFTEN*/ 94 DEBUG_MCMD = 0x04000, /* COMMANDS THAT ARE SENT VERY OFTEN */
96 DEBUG_INIT = 0x08000, /* (de)allocation+initialization of data structures */ 95 DEBUG_INIT = 0x08000, /* (de)allocation+initialization of data
96 structures */
97 DEBUG_LOCK = 0x10000, /* semaphore operations */ 97 DEBUG_LOCK = 0x10000, /* semaphore operations */
98 DEBUG_OUTPUT = 0x20000, /* output to device */ 98 DEBUG_OUTPUT = 0x20000, /* output to device */
99 DEBUG_ISO = 0x40000, /* isochronous transfers */ 99 DEBUG_ISO = 0x40000, /* isochronous transfers */
100 DEBUG_IF = 0x80000, /* character device operations */ 100 DEBUG_IF = 0x80000, /* character device operations */
101 DEBUG_USBREQ = 0x100000, /* USB communication (except payload data) */ 101 DEBUG_USBREQ = 0x100000, /* USB communication (except payload
102 DEBUG_LOCKCMD = 0x200000, /* AT commands and responses when MS_LOCKED */ 102 data) */
103 DEBUG_LOCKCMD = 0x200000, /* AT commands and responses when
104 MS_LOCKED */
103 105
104 DEBUG_ANY = 0x3fffff, /* print message if any of the others is activated */ 106 DEBUG_ANY = 0x3fffff, /* print message if any of the others is
107 activated */
105}; 108};
106 109
107#ifdef CONFIG_GIGASET_DEBUG 110/* missing from linux/device.h ... */
108#define DEBUG_DEFAULT (DEBUG_INIT | DEBUG_TRANSCMD | DEBUG_CMD | DEBUG_USBREQ) 111#ifndef dev_notice
109//#define DEBUG_DEFAULT (DEBUG_LOCK | DEBUG_INIT | DEBUG_TRANSCMD | DEBUG_CMD | DEBUF_IF | DEBUG_DRIVER | DEBUG_OUTPUT | DEBUG_INTR) 112#define dev_notice(dev, format, arg...) \
110#else 113 dev_printk(KERN_NOTICE , dev , format , ## arg)
111#define DEBUG_DEFAULT 0
112#endif 114#endif
113 115
114/* redefine syslog macros to prepend module name instead of entire source path */ 116/* Kernel message macros for situations where dev_printk and friends cannot be
115/* The space before the comma in ", ##" is needed by gcc 2.95 */ 117 * used for lack of reliable access to a device structure.
118 * linux/usb.h already contains these but in an obsolete form which clutters
119 * the log needlessly, and according to the USB maintainer those should be
120 * removed rather than fixed anyway.
121 */
122#undef err
116#undef info 123#undef info
117#define info(format, arg...) printk(KERN_INFO "%s: " format "\n", THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg)
118
119#undef notice
120#define notice(format, arg...) printk(KERN_NOTICE "%s: " format "\n", THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg)
121
122#undef warn 124#undef warn
123#define warn(format, arg...) printk(KERN_WARNING "%s: " format "\n", THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg) 125#undef notice
124 126
125#undef err 127#define err(format, arg...) printk(KERN_ERR KBUILD_MODNAME ": " \
126#define err(format, arg...) printk(KERN_ERR "%s: " format "\n", THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg) 128 format "\n" , ## arg)
129#define info(format, arg...) printk(KERN_INFO KBUILD_MODNAME ": " \
130 format "\n" , ## arg)
131#define warn(format, arg...) printk(KERN_WARNING KBUILD_MODNAME ": " \
132 format "\n" , ## arg)
133#define notice(format, arg...) printk(KERN_NOTICE KBUILD_MODNAME ": " \
134 format "\n" , ## arg)
127 135
128#undef dbg
129#ifdef CONFIG_GIGASET_DEBUG 136#ifdef CONFIG_GIGASET_DEBUG
130#define dbg(level, format, arg...) do { if (unlikely(((enum debuglevel)gigaset_debuglevel) & (level))) \ 137
131 printk(KERN_DEBUG "%s: " format "\n", THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg); } while (0) 138#define gig_dbg(level, format, arg...) \
139 do { \
140 if (unlikely(((enum debuglevel)gigaset_debuglevel) & (level))) \
141 printk(KERN_DEBUG KBUILD_MODNAME ": " format "\n", \
142 ## arg); \
143 } while (0)
144#define DEBUG_DEFAULT (DEBUG_INIT | DEBUG_TRANSCMD | DEBUG_CMD | DEBUG_USBREQ)
145
132#else 146#else
133#define dbg(level, format, arg...) do {} while (0) 147
148#define gig_dbg(level, format, arg...) do {} while (0)
149#define DEBUG_DEFAULT 0
150
134#endif 151#endif
135 152
136void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg, 153void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
137 size_t len, const unsigned char *buf, int from_user); 154 size_t len, const unsigned char *buf);
138 155
139/* connection state */ 156/* connection state */
140#define ZSAU_NONE 0 157#define ZSAU_NONE 0
@@ -148,13 +165,14 @@ void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
148#define ZSAU_UNKNOWN -1 165#define ZSAU_UNKNOWN -1
149 166
150/* USB control transfer requests */ 167/* USB control transfer requests */
151#define OUT_VENDOR_REQ (USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT) 168#define OUT_VENDOR_REQ (USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT)
152#define IN_VENDOR_REQ (USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT) 169#define IN_VENDOR_REQ (USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT)
153 170
154/* int-in-events 3070 */ 171/* int-in-events 3070 */
155#define HD_B1_FLOW_CONTROL 0x80 172#define HD_B1_FLOW_CONTROL 0x80
156#define HD_B2_FLOW_CONTROL 0x81 173#define HD_B2_FLOW_CONTROL 0x81
157#define HD_RECEIVEATDATA_ACK (0x35) // 3070 // att: HD_RECEIVE>>AT<<DATA_ACK 174#define HD_RECEIVEATDATA_ACK (0x35) // 3070
175 // att: HD_RECEIVE>>AT<<DATA_ACK
158#define HD_READY_SEND_ATDATA (0x36) // 3070 176#define HD_READY_SEND_ATDATA (0x36) // 3070
159#define HD_OPEN_ATCHANNEL_ACK (0x37) // 3070 177#define HD_OPEN_ATCHANNEL_ACK (0x37) // 3070
160#define HD_CLOSE_ATCHANNEL_ACK (0x38) // 3070 178#define HD_CLOSE_ATCHANNEL_ACK (0x38) // 3070
@@ -181,17 +199,18 @@ void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
181#define HD_CLOSE_ATCHANNEL (0x29) // 3070 199#define HD_CLOSE_ATCHANNEL (0x29) // 3070
182 200
183/* USB frames for isochronous transfer */ 201/* USB frames for isochronous transfer */
184#define BAS_FRAMETIME 1 /* number of milliseconds between frames */ 202#define BAS_FRAMETIME 1 /* number of milliseconds between frames */
185#define BAS_NUMFRAMES 8 /* number of frames per URB */ 203#define BAS_NUMFRAMES 8 /* number of frames per URB */
186#define BAS_MAXFRAME 16 /* allocated bytes per frame */ 204#define BAS_MAXFRAME 16 /* allocated bytes per frame */
187#define BAS_NORMFRAME 8 /* send size without flow control */ 205#define BAS_NORMFRAME 8 /* send size without flow control */
188#define BAS_HIGHFRAME 10 /* " " with positive flow control */ 206#define BAS_HIGHFRAME 10 /* " " with positive flow control */
189#define BAS_LOWFRAME 5 /* " " with negative flow control */ 207#define BAS_LOWFRAME 5 /* " " with negative flow control */
190#define BAS_CORRFRAMES 4 /* flow control multiplicator */ 208#define BAS_CORRFRAMES 4 /* flow control multiplicator */
191 209
192#define BAS_INBUFSIZE (BAS_MAXFRAME * BAS_NUMFRAMES) /* size of isochronous input buffer per URB */ 210#define BAS_INBUFSIZE (BAS_MAXFRAME * BAS_NUMFRAMES)
193#define BAS_OUTBUFSIZE 4096 /* size of common isochronous output buffer */ 211 /* size of isoc in buf per URB */
194#define BAS_OUTBUFPAD BAS_MAXFRAME /* size of pad area for isochronous output buffer */ 212#define BAS_OUTBUFSIZE 4096 /* size of common isoc out buffer */
213#define BAS_OUTBUFPAD BAS_MAXFRAME /* size of pad area for isoc out buf */
195 214
196#define BAS_INURBS 3 215#define BAS_INURBS 3
197#define BAS_OUTURBS 3 216#define BAS_OUTURBS 3
@@ -207,40 +226,40 @@ void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
207#define AT_NUM 7 226#define AT_NUM 7
208 227
209/* variables in struct at_state_t */ 228/* variables in struct at_state_t */
210#define VAR_ZSAU 0 229#define VAR_ZSAU 0
211#define VAR_ZDLE 1 230#define VAR_ZDLE 1
212#define VAR_ZVLS 2 231#define VAR_ZVLS 2
213#define VAR_ZCTP 3 232#define VAR_ZCTP 3
214#define VAR_NUM 4 233#define VAR_NUM 4
215 234
216#define STR_NMBR 0 235#define STR_NMBR 0
217#define STR_ZCPN 1 236#define STR_ZCPN 1
218#define STR_ZCON 2 237#define STR_ZCON 2
219#define STR_ZBC 3 238#define STR_ZBC 3
220#define STR_ZHLC 4 239#define STR_ZHLC 4
221#define STR_NUM 5 240#define STR_NUM 5
222 241
223#define EV_TIMEOUT -105 242#define EV_TIMEOUT -105
224#define EV_IF_VER -106 243#define EV_IF_VER -106
225#define EV_PROC_CIDMODE -107 244#define EV_PROC_CIDMODE -107
226#define EV_SHUTDOWN -108 245#define EV_SHUTDOWN -108
227#define EV_START -110 246#define EV_START -110
228#define EV_STOP -111 247#define EV_STOP -111
229#define EV_IF_LOCK -112 248#define EV_IF_LOCK -112
230#define EV_PROTO_L2 -113 249#define EV_PROTO_L2 -113
231#define EV_ACCEPT -114 250#define EV_ACCEPT -114
232#define EV_DIAL -115 251#define EV_DIAL -115
233#define EV_HUP -116 252#define EV_HUP -116
234#define EV_BC_OPEN -117 253#define EV_BC_OPEN -117
235#define EV_BC_CLOSED -118 254#define EV_BC_CLOSED -118
236 255
237/* input state */ 256/* input state */
238#define INS_command 0x0001 257#define INS_command 0x0001
239#define INS_DLE_char 0x0002 258#define INS_DLE_char 0x0002
240#define INS_byte_stuff 0x0004 259#define INS_byte_stuff 0x0004
241#define INS_have_data 0x0008 260#define INS_have_data 0x0008
242#define INS_skip_frame 0x0010 261#define INS_skip_frame 0x0010
243#define INS_DLE_command 0x0020 262#define INS_DLE_command 0x0020
244#define INS_flag_hunt 0x0040 263#define INS_flag_hunt 0x0040
245 264
246/* channel state */ 265/* channel state */
@@ -248,27 +267,27 @@ void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
248#define CHS_B_UP 0x02 267#define CHS_B_UP 0x02
249#define CHS_NOTIFY_LL 0x04 268#define CHS_NOTIFY_LL 0x04
250 269
251#define ICALL_REJECT 0 270#define ICALL_REJECT 0
252#define ICALL_ACCEPT 1 271#define ICALL_ACCEPT 1
253#define ICALL_IGNORE 2 272#define ICALL_IGNORE 2
254 273
255/* device state */ 274/* device state */
256#define MS_UNINITIALIZED 0 275#define MS_UNINITIALIZED 0
257#define MS_INIT 1 276#define MS_INIT 1
258#define MS_LOCKED 2 277#define MS_LOCKED 2
259#define MS_SHUTDOWN 3 278#define MS_SHUTDOWN 3
260#define MS_RECOVER 4 279#define MS_RECOVER 4
261#define MS_READY 5 280#define MS_READY 5
262 281
263/* mode */ 282/* mode */
264#define M_UNKNOWN 0 283#define M_UNKNOWN 0
265#define M_CONFIG 1 284#define M_CONFIG 1
266#define M_UNIMODEM 2 285#define M_UNIMODEM 2
267#define M_CID 3 286#define M_CID 3
268 287
269/* start mode */ 288/* start mode */
270#define SM_LOCKED 0 289#define SM_LOCKED 0
271#define SM_ISDN 1 /* default */ 290#define SM_ISDN 1 /* default */
272 291
273struct gigaset_ops; 292struct gigaset_ops;
274struct gigaset_driver; 293struct gigaset_driver;
@@ -283,27 +302,26 @@ struct ser_bc_state;
283struct bas_bc_state; 302struct bas_bc_state;
284 303
285struct reply_t { 304struct reply_t {
286 int resp_code; /* RSP_XXXX */ 305 int resp_code; /* RSP_XXXX */
287 int min_ConState; /* <0 => ignore */ 306 int min_ConState; /* <0 => ignore */
288 int max_ConState; /* <0 => ignore */ 307 int max_ConState; /* <0 => ignore */
289 int parameter; /* e.g. ZSAU_XXXX <0: ignore*/ 308 int parameter; /* e.g. ZSAU_XXXX <0: ignore*/
290 int new_ConState; /* <0 => ignore */ 309 int new_ConState; /* <0 => ignore */
291 int timeout; /* >0 => *HZ; <=0 => TOUT_XXXX*/ 310 int timeout; /* >0 => *HZ; <=0 => TOUT_XXXX*/
292 int action[MAXACT]; /* ACT_XXXX */ 311 int action[MAXACT]; /* ACT_XXXX */
293 char *command; /* NULL==none */ 312 char *command; /* NULL==none */
294}; 313};
295 314
296extern struct reply_t gigaset_tab_cid_m10x[]; 315extern struct reply_t gigaset_tab_cid_m10x[];
297extern struct reply_t gigaset_tab_nocid_m10x[]; 316extern struct reply_t gigaset_tab_nocid_m10x[];
298 317
299struct inbuf_t { 318struct inbuf_t {
300 unsigned char *rcvbuf; /* usb-gigaset receive buffer */ 319 unsigned char *rcvbuf; /* usb-gigaset receive buffer */
301 struct bc_state *bcs; 320 struct bc_state *bcs;
302 struct cardstate *cs; 321 struct cardstate *cs;
303 int inputstate; 322 int inputstate;
304 323 atomic_t head, tail;
305 atomic_t head, tail; 324 unsigned char data[RBUFSIZE];
306 unsigned char data[RBUFSIZE];
307}; 325};
308 326
309/* isochronous write buffer structure 327/* isochronous write buffer structure
@@ -319,16 +337,9 @@ struct inbuf_t {
319 * if writesem <= 0, data[write..read-1] is currently being written to 337 * if writesem <= 0, data[write..read-1] is currently being written to
320 * - idle contains the byte value to repeat when the end of valid data is 338 * - idle contains the byte value to repeat when the end of valid data is
321 * reached; if nextread==write (buffer contains no data to send), either the 339 * reached; if nextread==write (buffer contains no data to send), either the
322 * BAS_OUTBUFPAD bytes immediately before data[write] (if write>=BAS_OUTBUFPAD) 340 * BAS_OUTBUFPAD bytes immediately before data[write] (if
323 * or those of the pad area (if write<BAS_OUTBUFPAD) are also filled with that 341 * write>=BAS_OUTBUFPAD) or those of the pad area (if write<BAS_OUTBUFPAD)
324 * value 342 * are also filled with that value
325 * - optionally, the following statistics on the buffer's usage can be collected:
326 * maxfill: maximum number of bytes occupied
327 * idlefills: number of times a frame of idle bytes is prepared
328 * emptygets: number of times the buffer was empty when a data frame was requested
329 * backtoback: number of times two data packets were entered into the buffer
330 * without intervening idle flags
331 * nakedback: set if no idle flags have been inserted since the last data packet
332 */ 343 */
333struct isowbuf_t { 344struct isowbuf_t {
334 atomic_t read; 345 atomic_t read;
@@ -358,34 +369,28 @@ struct isow_urbctx_t {
358 * it is currently assigned a B channel 369 * it is currently assigned a B channel
359 */ 370 */
360struct at_state_t { 371struct at_state_t {
361 struct list_head list; 372 struct list_head list;
362 int waiting; 373 int waiting;
363 int getstring; 374 int getstring;
364 atomic_t timer_index; 375 unsigned timer_index;
365 unsigned long timer_expires; 376 unsigned long timer_expires;
366 int timer_active; 377 int timer_active;
367 unsigned int ConState; /* State of connection */ 378 unsigned int ConState; /* State of connection */
368 struct reply_t *replystruct; 379 struct reply_t *replystruct;
369 int cid; 380 int cid;
370 int int_var[VAR_NUM]; /* see VAR_XXXX */ 381 int int_var[VAR_NUM]; /* see VAR_XXXX */
371 char *str_var[STR_NUM]; /* see STR_XXXX */ 382 char *str_var[STR_NUM]; /* see STR_XXXX */
372 unsigned pending_commands; /* see PC_XXXX */ 383 unsigned pending_commands; /* see PC_XXXX */
373 atomic_t seq_index; 384 unsigned seq_index;
374 385
375 struct cardstate *cs; 386 struct cardstate *cs;
376 struct bc_state *bcs; 387 struct bc_state *bcs;
377}; 388};
378 389
379struct resp_type_t { 390struct resp_type_t {
380 unsigned char *response; 391 unsigned char *response;
381 int resp_code; /* RSP_XXXX */ 392 int resp_code; /* RSP_XXXX */
382 int type; /* RT_XXXX */ 393 int type; /* RT_XXXX */
383};
384
385struct prot_skb {
386 atomic_t empty;
387 struct semaphore *sem;
388 struct sk_buff *skb;
389}; 394};
390 395
391struct event_t { 396struct event_t {
@@ -398,29 +403,29 @@ struct event_t {
398 403
399/* This buffer holds all information about the used B-Channel */ 404/* This buffer holds all information about the used B-Channel */
400struct bc_state { 405struct bc_state {
401 struct sk_buff *tx_skb; /* Current transfer buffer to modem */ 406 struct sk_buff *tx_skb; /* Current transfer buffer to modem */
402 struct sk_buff_head squeue; /* B-Channel send Queue */ 407 struct sk_buff_head squeue; /* B-Channel send Queue */
403 408
404 /* Variables for debugging .. */ 409 /* Variables for debugging .. */
405 int corrupted; /* Counter for corrupted packages */ 410 int corrupted; /* Counter for corrupted packages */
406 int trans_down; /* Counter of packages (downstream) */ 411 int trans_down; /* Counter of packages (downstream) */
407 int trans_up; /* Counter of packages (upstream) */ 412 int trans_up; /* Counter of packages (upstream) */
408 413
409 struct at_state_t at_state; 414 struct at_state_t at_state;
410 unsigned long rcvbytes; 415 unsigned long rcvbytes;
411 416
412 __u16 fcs; 417 __u16 fcs;
413 struct sk_buff *skb; 418 struct sk_buff *skb;
414 int inputstate; /* see INS_XXXX */ 419 int inputstate; /* see INS_XXXX */
415 420
416 int channel; 421 int channel;
417 422
418 struct cardstate *cs; 423 struct cardstate *cs;
419 424
420 unsigned chstate; /* bitmap (CHS_*) */ 425 unsigned chstate; /* bitmap (CHS_*) */
421 int ignore; 426 int ignore;
422 unsigned proto2; /* Layer 2 protocol (ISDN_PROTO_L2_*) */ 427 unsigned proto2; /* Layer 2 protocol (ISDN_PROTO_L2_*) */
423 char *commands[AT_NUM]; /* see AT_XXXX */ 428 char *commands[AT_NUM]; /* see AT_XXXX */
424 429
425#ifdef CONFIG_GIGASET_DEBUG 430#ifdef CONFIG_GIGASET_DEBUG
426 int emptycount; 431 int emptycount;
@@ -428,37 +433,39 @@ struct bc_state {
428 int busy; 433 int busy;
429 int use_count; 434 int use_count;
430 435
431 /* hardware drivers */ 436 /* private data of hardware drivers */
432 union { 437 union {
433 struct ser_bc_state *ser; /* private data of serial hardware driver */ 438 struct ser_bc_state *ser; /* serial hardware driver */
434 struct usb_bc_state *usb; /* private data of usb hardware driver */ 439 struct usb_bc_state *usb; /* usb hardware driver (m105) */
435 struct bas_bc_state *bas; 440 struct bas_bc_state *bas; /* usb hardware driver (base) */
436 } hw; 441 } hw;
437}; 442};
438 443
439struct cardstate { 444struct cardstate {
440 struct gigaset_driver *driver; 445 struct gigaset_driver *driver;
441 unsigned minor_index; 446 unsigned minor_index;
447 struct device *dev;
442 448
443 const struct gigaset_ops *ops; 449 const struct gigaset_ops *ops;
444 450
445 /* Stuff to handle communication */ 451 /* Stuff to handle communication */
446 //wait_queue_head_t initwait;
447 wait_queue_head_t waitqueue; 452 wait_queue_head_t waitqueue;
448 int waiting; 453 int waiting;
449 atomic_t mode; /* see M_XXXX */ 454 atomic_t mode; /* see M_XXXX */
450 atomic_t mstate; /* Modem state: see MS_XXXX */ 455 atomic_t mstate; /* Modem state: see MS_XXXX */
451 /* only changed by the event layer */ 456 /* only changed by the event layer */
452 int cmd_result; 457 int cmd_result;
453 458
454 int channels; 459 int channels;
455 struct bc_state *bcs; /* Array of struct bc_state */ 460 struct bc_state *bcs; /* Array of struct bc_state */
456 461
457 int onechannel; /* data and commands transmitted in one stream (M10x) */ 462 int onechannel; /* data and commands transmitted in one
463 stream (M10x) */
458 464
459 spinlock_t lock; 465 spinlock_t lock;
460 struct at_state_t at_state; /* at_state_t for cid == 0 */ 466 struct at_state_t at_state; /* at_state_t for cid == 0 */
461 struct list_head temp_at_states; /* list of temporary "struct at_state_t"s without B channel */ 467 struct list_head temp_at_states;/* list of temporary "struct
468 at_state_t"s without B channel */
462 469
463 struct inbuf_t *inbuf; 470 struct inbuf_t *inbuf;
464 471
@@ -474,58 +481,69 @@ struct cardstate {
474 unsigned fwver[4]; 481 unsigned fwver[4];
475 int gotfwver; 482 int gotfwver;
476 483
477 atomic_t running; /* !=0 if events are handled */ 484 unsigned running; /* !=0 if events are handled */
478 atomic_t connected; /* !=0 if hardware is connected */ 485 unsigned connected; /* !=0 if hardware is connected */
486 unsigned isdn_up; /* !=0 after ISDN_STAT_RUN */
479 487
480 atomic_t cidmode; 488 unsigned cidmode;
481 489
482 int myid; /* id for communication with LL */ 490 int myid; /* id for communication with LL */
483 isdn_if iif; 491 isdn_if iif;
484 492
485 struct reply_t *tabnocid; 493 struct reply_t *tabnocid;
486 struct reply_t *tabcid; 494 struct reply_t *tabcid;
487 int cs_init; 495 int cs_init;
488 int ignoreframes; /* frames to ignore after setting up the B channel */ 496 int ignoreframes; /* frames to ignore after setting up the
489 struct semaphore sem; /* locks this structure: */ 497 B channel */
490 /* connected is not changed, */ 498 struct mutex mutex; /* locks this structure:
491 /* hardware_up is not changed, */ 499 * connected is not changed,
492 /* MState is not changed to or from MS_LOCKED */ 500 * hardware_up is not changed,
501 * MState is not changed to or from
502 * MS_LOCKED */
493 503
494 struct timer_list timer; 504 struct timer_list timer;
495 int retry_count; 505 int retry_count;
496 int dle; /* !=0 if modem commands/responses are dle encoded */ 506 int dle; /* !=0 if modem commands/responses are
497 int cur_at_seq; /* sequence of AT commands being processed */ 507 dle encoded */
498 int curchannel; /* channel, those commands are meant for */ 508 int cur_at_seq; /* sequence of AT commands being
499 atomic_t commands_pending; /* flag(s) in xxx.commands_pending have been set */ 509 processed */
500 struct tasklet_struct event_tasklet; /* tasklet for serializing AT commands. Scheduled 510 int curchannel; /* channel those commands are meant
501 * -> for modem reponses (and incomming data for M10x) 511 for */
502 * -> on timeout 512 atomic_t commands_pending; /* flag(s) in xxx.commands_pending have
503 * -> after setting bits in xxx.at_state.pending_command 513 been set */
504 * (e.g. command from LL) */ 514 struct tasklet_struct event_tasklet;
505 struct tasklet_struct write_tasklet; /* tasklet for serial output 515 /* tasklet for serializing AT commands.
506 * (not used in base driver) */ 516 * Scheduled
517 * -> for modem reponses (and
518 * incoming data for M10x)
519 * -> on timeout
520 * -> after setting bits in
521 * xxx.at_state.pending_command
522 * (e.g. command from LL) */
523 struct tasklet_struct write_tasklet;
524 /* tasklet for serial output
525 * (not used in base driver) */
507 526
508 /* event queue */ 527 /* event queue */
509 struct event_t events[MAX_EVENTS]; 528 struct event_t events[MAX_EVENTS];
510 atomic_t ev_tail, ev_head; 529 unsigned ev_tail, ev_head;
511 spinlock_t ev_lock; 530 spinlock_t ev_lock;
512 531
513 /* current modem response */ 532 /* current modem response */
514 unsigned char respdata[MAX_RESP_SIZE]; 533 unsigned char respdata[MAX_RESP_SIZE];
515 unsigned cbytes; 534 unsigned cbytes;
516 535
517 /* hardware drivers */ 536 /* private data of hardware drivers */
518 union { 537 union {
519 struct usb_cardstate *usb; /* private data of USB hardware driver */ 538 struct usb_cardstate *usb; /* USB hardware driver (m105) */
520 struct ser_cardstate *ser; /* private data of serial hardware driver */ 539 struct ser_cardstate *ser; /* serial hardware driver */
521 struct bas_cardstate *bas; /* private data of base hardware driver */ 540 struct bas_cardstate *bas; /* USB hardware driver (base) */
522 } hw; 541 } hw;
523}; 542};
524 543
525struct gigaset_driver { 544struct gigaset_driver {
526 struct list_head list; 545 struct list_head list;
527 spinlock_t lock; /* locks minor tables and blocked */ 546 spinlock_t lock; /* locks minor tables and blocked */
528 //struct semaphore sem; /* locks this structure */
529 struct tty_driver *tty; 547 struct tty_driver *tty;
530 unsigned have_tty; 548 unsigned have_tty;
531 unsigned minor; 549 unsigned minor;
@@ -553,37 +571,42 @@ struct bas_bc_state {
553 struct isow_urbctx_t isoouturbs[BAS_OUTURBS]; 571 struct isow_urbctx_t isoouturbs[BAS_OUTURBS];
554 struct isow_urbctx_t *isooutdone, *isooutfree, *isooutovfl; 572 struct isow_urbctx_t *isooutdone, *isooutfree, *isooutovfl;
555 struct isowbuf_t *isooutbuf; 573 struct isowbuf_t *isooutbuf;
556 unsigned numsub; /* submitted URB counter (for diagnostic messages only) */ 574 unsigned numsub; /* submitted URB counter
575 (for diagnostic messages only) */
557 struct tasklet_struct sent_tasklet; 576 struct tasklet_struct sent_tasklet;
558 577
559 /* isochronous input state */ 578 /* isochronous input state */
560 spinlock_t isoinlock; 579 spinlock_t isoinlock;
561 struct urb *isoinurbs[BAS_INURBS]; 580 struct urb *isoinurbs[BAS_INURBS];
562 unsigned char isoinbuf[BAS_INBUFSIZE * BAS_INURBS]; 581 unsigned char isoinbuf[BAS_INBUFSIZE * BAS_INURBS];
563 struct urb *isoindone; /* completed isoc read URB */ 582 struct urb *isoindone; /* completed isoc read URB */
564 int loststatus; /* status of dropped URB */ 583 int loststatus; /* status of dropped URB */
565 unsigned isoinlost; /* number of bytes lost */ 584 unsigned isoinlost; /* number of bytes lost */
566 /* state of bit unstuffing algorithm (in addition to BC_state.inputstate) */ 585 /* state of bit unstuffing algorithm
567 unsigned seqlen; /* number of '1' bits not yet unstuffed */ 586 (in addition to BC_state.inputstate) */
568 unsigned inbyte, inbits; /* collected bits for next byte */ 587 unsigned seqlen; /* number of '1' bits not yet
588 unstuffed */
589 unsigned inbyte, inbits; /* collected bits for next byte */
569 /* statistics */ 590 /* statistics */
570 unsigned goodbytes; /* bytes correctly received */ 591 unsigned goodbytes; /* bytes correctly received */
571 unsigned alignerrs; /* frames with incomplete byte at end */ 592 unsigned alignerrs; /* frames with incomplete byte at end */
572 unsigned fcserrs; /* FCS errors */ 593 unsigned fcserrs; /* FCS errors */
573 unsigned frameerrs; /* framing errors */ 594 unsigned frameerrs; /* framing errors */
574 unsigned giants; /* long frames */ 595 unsigned giants; /* long frames */
575 unsigned runts; /* short frames */ 596 unsigned runts; /* short frames */
576 unsigned aborts; /* HDLC aborts */ 597 unsigned aborts; /* HDLC aborts */
577 unsigned shared0s; /* '0' bits shared between flags */ 598 unsigned shared0s; /* '0' bits shared between flags */
578 unsigned stolen0s; /* '0' stuff bits also serving as leading flag bits */ 599 unsigned stolen0s; /* '0' stuff bits also serving as
600 leading flag bits */
579 struct tasklet_struct rcvd_tasklet; 601 struct tasklet_struct rcvd_tasklet;
580}; 602};
581 603
582struct gigaset_ops { 604struct gigaset_ops {
583 /* Called from ev-layer.c/interface.c for sending AT commands to the device */ 605 /* Called from ev-layer.c/interface.c for sending AT commands to the
606 device */
584 int (*write_cmd)(struct cardstate *cs, 607 int (*write_cmd)(struct cardstate *cs,
585 const unsigned char *buf, int len, 608 const unsigned char *buf, int len,
586 struct tasklet_struct *wake_tasklet); 609 struct tasklet_struct *wake_tasklet);
587 610
588 /* Called from interface.c for additional device control */ 611 /* Called from interface.c for additional device control */
589 int (*write_room)(struct cardstate *cs); 612 int (*write_room)(struct cardstate *cs);
@@ -604,7 +627,8 @@ struct gigaset_ops {
604 /* Called by gigaset_freecs() for freeing bcs->hw.xxx */ 627 /* Called by gigaset_freecs() for freeing bcs->hw.xxx */
605 int (*freebcshw)(struct bc_state *bcs); 628 int (*freebcshw)(struct bc_state *bcs);
606 629
607 /* Called by gigaset_stop() or gigaset_bchannel_down() for resetting bcs->hw.xxx */ 630 /* Called by gigaset_stop() or gigaset_bchannel_down() for resetting
631 bcs->hw.xxx */
608 void (*reinitbcshw)(struct bc_state *bcs); 632 void (*reinitbcshw)(struct bc_state *bcs);
609 633
610 /* Called by gigaset_initcs() for setting up cs->hw.xxx */ 634 /* Called by gigaset_initcs() for setting up cs->hw.xxx */
@@ -613,13 +637,10 @@ struct gigaset_ops {
613 /* Called by gigaset_freecs() for freeing cs->hw.xxx */ 637 /* Called by gigaset_freecs() for freeing cs->hw.xxx */
614 void (*freecshw)(struct cardstate *cs); 638 void (*freecshw)(struct cardstate *cs);
615 639
616 ///* Called by gigaset_stop() for killing URBs, shutting down the device, ... 640 /* Called from common.c/interface.c for additional serial port
617 // hardwareup: ==0: don't try to shut down the device, hardware is really not accessible 641 control */
618 // !=0: hardware still up */ 642 int (*set_modem_ctrl)(struct cardstate *cs, unsigned old_state,
619 //void (*stophw)(struct cardstate *cs, int hardwareup); 643 unsigned new_state);
620
621 /* Called from common.c/interface.c for additional serial port control */
622 int (*set_modem_ctrl)(struct cardstate *cs, unsigned old_state, unsigned new_state);
623 int (*baud_rate)(struct cardstate *cs, unsigned cflag); 644 int (*baud_rate)(struct cardstate *cs, unsigned cflag);
624 int (*set_line_ctrl)(struct cardstate *cs, unsigned cflag); 645 int (*set_line_ctrl)(struct cardstate *cs, unsigned cflag);
625 646
@@ -639,7 +660,7 @@ struct gigaset_ops {
639 * <DLE_FLAG>: 0x10 660 * <DLE_FLAG>: 0x10
640 * <EVENT>: ((a-z)* | (A-Z)* | (0-10)*)+ 661 * <EVENT>: ((a-z)* | (A-Z)* | (0-10)*)+
641 */ 662 */
642#define DLE_FLAG 0x10 663#define DLE_FLAG 0x10
643 664
644/* =========================================================================== 665/* ===========================================================================
645 * Functions implemented in asyncdata.c 666 * Functions implemented in asyncdata.c
@@ -667,7 +688,8 @@ void gigaset_isoc_input(struct inbuf_t *inbuf);
667 688
668/* Called from bas-gigaset.c to process a block of data 689/* Called from bas-gigaset.c to process a block of data
669 * received through the isochronous channel */ 690 * received through the isochronous channel */
670void gigaset_isoc_receive(unsigned char *src, unsigned count, struct bc_state *bcs); 691void gigaset_isoc_receive(unsigned char *src, unsigned count,
692 struct bc_state *bcs);
671 693
672/* Called from bas-gigaset.c to put a block of data 694/* Called from bas-gigaset.c to put a block of data
673 * into the isochronous output buffer */ 695 * into the isochronous output buffer */
@@ -703,7 +725,7 @@ static inline void gigaset_isdn_rcv_err(struct bc_state *bcs)
703 isdn_ctrl response; 725 isdn_ctrl response;
704 726
705 /* error -> LL */ 727 /* error -> LL */
706 dbg(DEBUG_CMD, "sending L1ERR"); 728 gig_dbg(DEBUG_CMD, "sending L1ERR");
707 response.driver = bcs->cs->myid; 729 response.driver = bcs->cs->myid;
708 response.command = ISDN_STAT_L1ERR; 730 response.command = ISDN_STAT_L1ERR;
709 response.arg = bcs->channel; 731 response.arg = bcs->channel;
@@ -727,8 +749,8 @@ void gigaset_handle_modem_response(struct cardstate *cs);
727 */ 749 */
728 750
729/* initialize sysfs for device */ 751/* initialize sysfs for device */
730void gigaset_init_dev_sysfs(struct usb_interface *interface); 752void gigaset_init_dev_sysfs(struct cardstate *cs);
731void gigaset_free_dev_sysfs(struct usb_interface *interface); 753void gigaset_free_dev_sysfs(struct cardstate *cs);
732 754
733/* =========================================================================== 755/* ===========================================================================
734 * Functions implemented in common.c/gigaset.h 756 * Functions implemented in common.c/gigaset.h
@@ -736,7 +758,7 @@ void gigaset_free_dev_sysfs(struct usb_interface *interface);
736 758
737void gigaset_bcs_reinit(struct bc_state *bcs); 759void gigaset_bcs_reinit(struct bc_state *bcs);
738void gigaset_at_init(struct at_state_t *at_state, struct bc_state *bcs, 760void gigaset_at_init(struct at_state_t *at_state, struct bc_state *bcs,
739 struct cardstate *cs, int cid); 761 struct cardstate *cs, int cid);
740int gigaset_get_channel(struct bc_state *bcs); 762int gigaset_get_channel(struct bc_state *bcs);
741void gigaset_free_channel(struct bc_state *bcs); 763void gigaset_free_channel(struct bc_state *bcs);
742int gigaset_get_channels(struct cardstate *cs); 764int gigaset_get_channels(struct cardstate *cs);
@@ -745,16 +767,15 @@ void gigaset_block_channels(struct cardstate *cs);
745 767
746/* Allocate and initialize driver structure. */ 768/* Allocate and initialize driver structure. */
747struct gigaset_driver *gigaset_initdriver(unsigned minor, unsigned minors, 769struct gigaset_driver *gigaset_initdriver(unsigned minor, unsigned minors,
748 const char *procname, 770 const char *procname,
749 const char *devname, 771 const char *devname,
750 const char *devfsname, 772 const char *devfsname,
751 const struct gigaset_ops *ops, 773 const struct gigaset_ops *ops,
752 struct module *owner); 774 struct module *owner);
753 775
754/* Deallocate driver structure. */ 776/* Deallocate driver structure. */
755void gigaset_freedriver(struct gigaset_driver *drv); 777void gigaset_freedriver(struct gigaset_driver *drv);
756void gigaset_debugdrivers(void); 778void gigaset_debugdrivers(void);
757struct cardstate *gigaset_get_cs_by_minor(unsigned minor);
758struct cardstate *gigaset_get_cs_by_tty(struct tty_struct *tty); 779struct cardstate *gigaset_get_cs_by_tty(struct tty_struct *tty);
759struct cardstate *gigaset_get_cs_by_id(int id); 780struct cardstate *gigaset_get_cs_by_id(int id);
760 781
@@ -763,7 +784,8 @@ struct cardstate *gigaset_getunassignedcs(struct gigaset_driver *drv);
763void gigaset_unassign(struct cardstate *cs); 784void gigaset_unassign(struct cardstate *cs);
764void gigaset_blockdriver(struct gigaset_driver *drv); 785void gigaset_blockdriver(struct gigaset_driver *drv);
765 786
766/* Allocate and initialize card state. Calls hardware dependent gigaset_init[b]cs(). */ 787/* Allocate and initialize card state. Calls hardware dependent
788 gigaset_init[b]cs(). */
767struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels, 789struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels,
768 int onechannel, int ignoreframes, 790 int onechannel, int ignoreframes,
769 int cidmode, const char *modulename); 791 int cidmode, const char *modulename);
@@ -788,8 +810,8 @@ void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *skb);
788 * ptr must be kmalloc()ed (and not be freed by the caller). 810 * ptr must be kmalloc()ed (and not be freed by the caller).
789 */ 811 */
790struct event_t *gigaset_add_event(struct cardstate *cs, 812struct event_t *gigaset_add_event(struct cardstate *cs,
791 struct at_state_t *at_state, int type, 813 struct at_state_t *at_state, int type,
792 void *ptr, int parameter, void *arg); 814 void *ptr, int parameter, void *arg);
793 815
794/* Called on CONFIG1 command from frontend. */ 816/* Called on CONFIG1 command from frontend. */
795int gigaset_enterconfigmode(struct cardstate *cs); //0: success <0: errorcode 817int gigaset_enterconfigmode(struct cardstate *cs); //0: success <0: errorcode
@@ -799,7 +821,7 @@ static inline void gigaset_schedule_event(struct cardstate *cs)
799{ 821{
800 unsigned long flags; 822 unsigned long flags;
801 spin_lock_irqsave(&cs->lock, flags); 823 spin_lock_irqsave(&cs->lock, flags);
802 if (atomic_read(&cs->running)) 824 if (cs->running)
803 tasklet_schedule(&cs->event_tasklet); 825 tasklet_schedule(&cs->event_tasklet);
804 spin_unlock_irqrestore(&cs->lock, flags); 826 spin_unlock_irqrestore(&cs->lock, flags);
805} 827}
@@ -810,7 +832,7 @@ static inline void gigaset_bchannel_down(struct bc_state *bcs)
810{ 832{
811 gigaset_add_event(bcs->cs, &bcs->at_state, EV_BC_CLOSED, NULL, 0, NULL); 833 gigaset_add_event(bcs->cs, &bcs->at_state, EV_BC_CLOSED, NULL, 0, NULL);
812 834
813 dbg(DEBUG_CMD, "scheduling BC_CLOSED"); 835 gig_dbg(DEBUG_CMD, "scheduling BC_CLOSED");
814 gigaset_schedule_event(bcs->cs); 836 gigaset_schedule_event(bcs->cs);
815} 837}
816 838
@@ -820,36 +842,19 @@ static inline void gigaset_bchannel_up(struct bc_state *bcs)
820{ 842{
821 gigaset_add_event(bcs->cs, &bcs->at_state, EV_BC_OPEN, NULL, 0, NULL); 843 gigaset_add_event(bcs->cs, &bcs->at_state, EV_BC_OPEN, NULL, 0, NULL);
822 844
823 dbg(DEBUG_CMD, "scheduling BC_OPEN"); 845 gig_dbg(DEBUG_CMD, "scheduling BC_OPEN");
824 gigaset_schedule_event(bcs->cs); 846 gigaset_schedule_event(bcs->cs);
825} 847}
826 848
827/* handling routines for sk_buff */ 849/* handling routines for sk_buff */
828/* ============================= */ 850/* ============================= */
829 851
830/* private version of __skb_put()
831 * append 'len' bytes to the content of 'skb', already knowing that the
832 * existing buffer can accomodate them
833 * returns a pointer to the location where the new bytes should be copied to
834 * This function does not take any locks so it must be called with the
835 * appropriate locks held only.
836 */
837static inline unsigned char *gigaset_skb_put_quick(struct sk_buff *skb,
838 unsigned int len)
839{
840 unsigned char *tmp = skb->tail;
841 /*SKB_LINEAR_ASSERT(skb);*/ /* not needed here */
842 skb->tail += len;
843 skb->len += len;
844 return tmp;
845}
846
847/* pass received skb to LL 852/* pass received skb to LL
848 * Warning: skb must not be accessed anymore! 853 * Warning: skb must not be accessed anymore!
849 */ 854 */
850static inline void gigaset_rcv_skb(struct sk_buff *skb, 855static inline void gigaset_rcv_skb(struct sk_buff *skb,
851 struct cardstate *cs, 856 struct cardstate *cs,
852 struct bc_state *bcs) 857 struct bc_state *bcs)
853{ 858{
854 cs->iif.rcvcallb_skb(cs->myid, bcs->channel, skb); 859 cs->iif.rcvcallb_skb(cs->myid, bcs->channel, skb);
855 bcs->trans_down++; 860 bcs->trans_down++;
@@ -859,8 +864,8 @@ static inline void gigaset_rcv_skb(struct sk_buff *skb,
859 * Warning: skb must not be accessed anymore! 864 * Warning: skb must not be accessed anymore!
860 */ 865 */
861static inline void gigaset_rcv_error(struct sk_buff *procskb, 866static inline void gigaset_rcv_error(struct sk_buff *procskb,
862 struct cardstate *cs, 867 struct cardstate *cs,
863 struct bc_state *bcs) 868 struct bc_state *bcs)
864{ 869{
865 if (procskb) 870 if (procskb)
866 dev_kfree_skb(procskb); 871 dev_kfree_skb(procskb);
@@ -877,46 +882,9 @@ static inline void gigaset_rcv_error(struct sk_buff *procskb,
877/* bitwise byte inversion table */ 882/* bitwise byte inversion table */
878extern __u8 gigaset_invtab[]; /* in common.c */ 883extern __u8 gigaset_invtab[]; /* in common.c */
879 884
880
881/* append received bytes to inbuf */ 885/* append received bytes to inbuf */
882static inline int gigaset_fill_inbuf(struct inbuf_t *inbuf, 886int gigaset_fill_inbuf(struct inbuf_t *inbuf, const unsigned char *src,
883 const unsigned char *src, 887 unsigned numbytes);
884 unsigned numbytes)
885{
886 unsigned n, head, tail, bytesleft;
887
888 dbg(DEBUG_INTR, "received %u bytes", numbytes);
889
890 if (!numbytes)
891 return 0;
892
893 bytesleft = numbytes;
894 tail = atomic_read(&inbuf->tail);
895 head = atomic_read(&inbuf->head);
896 dbg(DEBUG_INTR, "buffer state: %u -> %u", head, tail);
897
898 while (bytesleft) {
899 if (head > tail)
900 n = head - 1 - tail;
901 else if (head == 0)
902 n = (RBUFSIZE-1) - tail;
903 else
904 n = RBUFSIZE - tail;
905 if (!n) {
906 err("buffer overflow (%u bytes lost)", bytesleft);
907 break;
908 }
909 if (n > bytesleft)
910 n = bytesleft;
911 memcpy(inbuf->data + tail, src, n);
912 bytesleft -= n;
913 tail = (tail + n) % RBUFSIZE;
914 src += n;
915 }
916 dbg(DEBUG_INTR, "setting tail to %u", tail);
917 atomic_set(&inbuf->tail, tail);
918 return numbytes != bytesleft;
919}
920 888
921/* =========================================================================== 889/* ===========================================================================
922 * Functions implemented in interface.c 890 * Functions implemented in interface.c
@@ -924,7 +892,7 @@ static inline int gigaset_fill_inbuf(struct inbuf_t *inbuf,
924 892
925/* initialize interface */ 893/* initialize interface */
926void gigaset_if_initdriver(struct gigaset_driver *drv, const char *procname, 894void gigaset_if_initdriver(struct gigaset_driver *drv, const char *procname,
927 const char *devname, const char *devfsname); 895 const char *devname, const char *devfsname);
928/* release interface */ 896/* release interface */
929void gigaset_if_freedriver(struct gigaset_driver *drv); 897void gigaset_if_freedriver(struct gigaset_driver *drv);
930/* add minor */ 898/* add minor */
@@ -933,6 +901,6 @@ void gigaset_if_init(struct cardstate *cs);
933void gigaset_if_free(struct cardstate *cs); 901void gigaset_if_free(struct cardstate *cs);
934/* device received data */ 902/* device received data */
935void gigaset_if_receive(struct cardstate *cs, 903void gigaset_if_receive(struct cardstate *cs,
936 unsigned char *buffer, size_t len); 904 unsigned char *buffer, size_t len);
937 905
938#endif 906#endif
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-05 14:45:22 -0500