Hansjoerg Lipp | 6fd5ea6 | 2006-03-26 01:38:29 -0800 | [diff] [blame] | 1 | /* Siemens Gigaset 307x driver |
| 2 | * Common header file for all connection variants |
| 3 | * |
| 4 | * Written by Stefan Eilers <Eilers.Stefan@epost.de> |
| 5 | * and Hansjoerg Lipp <hjlipp@web.de> |
| 6 | * |
| 7 | * Version: $Id: gigaset.h,v 1.97.4.26 2006/02/04 18:28:16 hjlipp Exp $ |
| 8 | * =========================================================================== |
| 9 | */ |
| 10 | |
| 11 | #ifndef GIGASET_H |
| 12 | #define GIGASET_H |
| 13 | |
| 14 | #include <linux/config.h> |
| 15 | #include <linux/kernel.h> |
| 16 | #include <linux/compiler.h> |
| 17 | #include <linux/types.h> |
| 18 | #include <asm/atomic.h> |
| 19 | #include <linux/spinlock.h> |
| 20 | #include <linux/isdnif.h> |
| 21 | #include <linux/usb.h> |
| 22 | #include <linux/skbuff.h> |
| 23 | #include <linux/netdevice.h> |
| 24 | #include <linux/ppp_defs.h> |
| 25 | #include <linux/timer.h> |
| 26 | #include <linux/interrupt.h> |
| 27 | #include <linux/tty.h> |
| 28 | #include <linux/tty_driver.h> |
| 29 | #include <linux/list.h> |
| 30 | |
| 31 | #define GIG_VERSION {0,5,0,0} |
| 32 | #define GIG_COMPAT {0,4,0,0} |
| 33 | |
| 34 | #define MAX_REC_PARAMS 10 /* Max. number of params in response string */ |
| 35 | #define MAX_RESP_SIZE 512 /* Max. size of a response string */ |
| 36 | #define HW_HDR_LEN 2 /* Header size used to store ack info */ |
| 37 | |
| 38 | #define MAX_EVENTS 64 /* size of event queue */ |
| 39 | |
| 40 | #define RBUFSIZE 8192 |
| 41 | #define SBUFSIZE 4096 /* sk_buff payload size */ |
| 42 | |
| 43 | #define MAX_BUF_SIZE (SBUFSIZE - 2) /* Max. size of a data packet from LL */ |
| 44 | #define TRANSBUFSIZE 768 /* bytes per skb for transparent receive */ |
| 45 | |
| 46 | /* compile time options */ |
| 47 | #define GIG_MAJOR 0 |
| 48 | |
| 49 | #define GIG_MAYINITONDIAL |
| 50 | #define GIG_RETRYCID |
| 51 | #define GIG_X75 |
| 52 | |
| 53 | #define MAX_TIMER_INDEX 1000 |
| 54 | #define MAX_SEQ_INDEX 1000 |
| 55 | |
| 56 | #define GIG_TICK (HZ / 10) |
| 57 | |
| 58 | /* timeout values (unit: 1 sec) */ |
| 59 | #define INIT_TIMEOUT 1 |
| 60 | |
| 61 | /* timeout values (unit: 0.1 sec) */ |
| 62 | #define RING_TIMEOUT 3 /* for additional parameters to RING */ |
| 63 | #define BAS_TIMEOUT 20 /* for response to Base USB ops */ |
| 64 | #define ATRDY_TIMEOUT 3 /* for HD_READY_SEND_ATDATA */ |
| 65 | |
| 66 | #define BAS_RETRY 3 /* max. retries for base USB ops */ |
| 67 | |
| 68 | #define MAXACT 3 |
| 69 | |
| 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 | |
| 76 | extern int gigaset_debuglevel; /* "needs" cast to (enum debuglevel) */ |
| 77 | |
| 78 | /* any combination of these can be given with the 'debug=' parameter to insmod, e.g. |
| 79 | * 'insmod usb_gigaset.o debug=0x2c' will set DEBUG_OPEN, DEBUG_CMD and DEBUG_INTR. */ |
| 80 | enum debuglevel { /* up to 24 bits (atomic_t) */ |
| 81 | DEBUG_REG = 0x0002, /* serial port I/O register operations */ |
| 82 | DEBUG_OPEN = 0x0004, /* open/close serial port */ |
| 83 | DEBUG_INTR = 0x0008, /* interrupt processing */ |
| 84 | DEBUG_INTR_DUMP = 0x0010, /* Activating hexdump debug output on interrupt |
| 85 | requests, not available as run-time option */ |
| 86 | DEBUG_CMD = 0x00020, /* sent/received LL commands */ |
| 87 | DEBUG_STREAM = 0x00040, /* application data stream I/O events */ |
| 88 | DEBUG_STREAM_DUMP = 0x00080, /* application data stream content */ |
| 89 | DEBUG_LLDATA = 0x00100, /* sent/received LL data */ |
| 90 | DEBUG_INTR_0 = 0x00200, /* serial port output interrupt processing */ |
| 91 | DEBUG_DRIVER = 0x00400, /* driver structure */ |
| 92 | DEBUG_HDLC = 0x00800, /* M10x HDLC processing */ |
| 93 | DEBUG_WRITE = 0x01000, /* M105 data write */ |
| 94 | DEBUG_TRANSCMD = 0x02000, /*AT-COMMANDS+RESPONSES*/ |
| 95 | DEBUG_MCMD = 0x04000, /*COMMANDS THAT ARE SENT VERY OFTEN*/ |
| 96 | DEBUG_INIT = 0x08000, /* (de)allocation+initialization of data structures */ |
| 97 | DEBUG_LOCK = 0x10000, /* semaphore operations */ |
| 98 | DEBUG_OUTPUT = 0x20000, /* output to device */ |
| 99 | DEBUG_ISO = 0x40000, /* isochronous transfers */ |
| 100 | DEBUG_IF = 0x80000, /* character device operations */ |
| 101 | DEBUG_USBREQ = 0x100000, /* USB communication (except payload data) */ |
| 102 | DEBUG_LOCKCMD = 0x200000, /* AT commands and responses when MS_LOCKED */ |
| 103 | |
| 104 | DEBUG_ANY = 0x3fffff, /* print message if any of the others is activated */ |
| 105 | }; |
| 106 | |
| 107 | #ifdef CONFIG_GIGASET_DEBUG |
| 108 | #define DEBUG_DEFAULT (DEBUG_INIT | DEBUG_TRANSCMD | DEBUG_CMD | DEBUG_USBREQ) |
| 109 | //#define DEBUG_DEFAULT (DEBUG_LOCK | DEBUG_INIT | DEBUG_TRANSCMD | DEBUG_CMD | DEBUF_IF | DEBUG_DRIVER | DEBUG_OUTPUT | DEBUG_INTR) |
| 110 | #else |
| 111 | #define DEBUG_DEFAULT 0 |
| 112 | #endif |
| 113 | |
| 114 | /* redefine syslog macros to prepend module name instead of entire source path */ |
| 115 | /* The space before the comma in ", ##" is needed by gcc 2.95 */ |
| 116 | #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 |
| 123 | #define warn(format, arg...) printk(KERN_WARNING "%s: " format "\n", THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg) |
| 124 | |
| 125 | #undef err |
| 126 | #define err(format, arg...) printk(KERN_ERR "%s: " format "\n", THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg) |
| 127 | |
| 128 | #undef dbg |
| 129 | #ifdef CONFIG_GIGASET_DEBUG |
| 130 | #define dbg(level, format, arg...) do { if (unlikely(((enum debuglevel)gigaset_debuglevel) & (level))) \ |
| 131 | printk(KERN_DEBUG "%s: " format "\n", THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg); } while (0) |
| 132 | #else |
| 133 | #define dbg(level, format, arg...) do {} while (0) |
| 134 | #endif |
| 135 | |
| 136 | void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg, |
| 137 | size_t len, const unsigned char *buf, int from_user); |
| 138 | |
| 139 | /* connection state */ |
| 140 | #define ZSAU_NONE 0 |
| 141 | #define ZSAU_DISCONNECT_IND 4 |
| 142 | #define ZSAU_OUTGOING_CALL_PROCEEDING 1 |
| 143 | #define ZSAU_PROCEEDING 1 |
| 144 | #define ZSAU_CALL_DELIVERED 2 |
| 145 | #define ZSAU_ACTIVE 3 |
| 146 | #define ZSAU_NULL 5 |
| 147 | #define ZSAU_DISCONNECT_REQ 6 |
| 148 | #define ZSAU_UNKNOWN -1 |
| 149 | |
| 150 | /* USB control transfer requests */ |
| 151 | #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) |
| 153 | |
| 154 | /* int-in-events 3070 */ |
| 155 | #define HD_B1_FLOW_CONTROL 0x80 |
| 156 | #define HD_B2_FLOW_CONTROL 0x81 |
| 157 | #define HD_RECEIVEATDATA_ACK (0x35) // 3070 // att: HD_RECEIVE>>AT<<DATA_ACK |
| 158 | #define HD_READY_SEND_ATDATA (0x36) // 3070 |
| 159 | #define HD_OPEN_ATCHANNEL_ACK (0x37) // 3070 |
| 160 | #define HD_CLOSE_ATCHANNEL_ACK (0x38) // 3070 |
| 161 | #define HD_DEVICE_INIT_OK (0x11) // ISurf USB + 3070 |
| 162 | #define HD_OPEN_B1CHANNEL_ACK (0x51) // ISurf USB + 3070 |
| 163 | #define HD_OPEN_B2CHANNEL_ACK (0x52) // ISurf USB + 3070 |
| 164 | #define HD_CLOSE_B1CHANNEL_ACK (0x53) // ISurf USB + 3070 |
| 165 | #define HD_CLOSE_B2CHANNEL_ACK (0x54) // ISurf USB + 3070 |
| 166 | // Powermangment |
| 167 | #define HD_SUSPEND_END (0x61) // ISurf USB |
| 168 | // Configuration |
| 169 | #define HD_RESET_INTERRUPT_PIPE_ACK (0xFF) // ISurf USB + 3070 |
| 170 | |
| 171 | /* control requests 3070 */ |
| 172 | #define HD_OPEN_B1CHANNEL (0x23) // ISurf USB + 3070 |
| 173 | #define HD_CLOSE_B1CHANNEL (0x24) // ISurf USB + 3070 |
| 174 | #define HD_OPEN_B2CHANNEL (0x25) // ISurf USB + 3070 |
| 175 | #define HD_CLOSE_B2CHANNEL (0x26) // ISurf USB + 3070 |
| 176 | #define HD_RESET_INTERRUPT_PIPE (0x27) // ISurf USB + 3070 |
| 177 | #define HD_DEVICE_INIT_ACK (0x34) // ISurf USB + 3070 |
| 178 | #define HD_WRITE_ATMESSAGE (0x12) // 3070 |
| 179 | #define HD_READ_ATMESSAGE (0x13) // 3070 |
| 180 | #define HD_OPEN_ATCHANNEL (0x28) // 3070 |
| 181 | #define HD_CLOSE_ATCHANNEL (0x29) // 3070 |
| 182 | |
| 183 | /* USB frames for isochronous transfer */ |
| 184 | #define BAS_FRAMETIME 1 /* number of milliseconds between frames */ |
| 185 | #define BAS_NUMFRAMES 8 /* number of frames per URB */ |
| 186 | #define BAS_MAXFRAME 16 /* allocated bytes per frame */ |
| 187 | #define BAS_NORMFRAME 8 /* send size without flow control */ |
| 188 | #define BAS_HIGHFRAME 10 /* " " with positive flow control */ |
| 189 | #define BAS_LOWFRAME 5 /* " " with negative flow control */ |
| 190 | #define BAS_CORRFRAMES 4 /* flow control multiplicator */ |
| 191 | |
| 192 | #define BAS_INBUFSIZE (BAS_MAXFRAME * BAS_NUMFRAMES) /* size of isochronous input buffer per URB */ |
| 193 | #define BAS_OUTBUFSIZE 4096 /* size of common isochronous output buffer */ |
| 194 | #define BAS_OUTBUFPAD BAS_MAXFRAME /* size of pad area for isochronous output buffer */ |
| 195 | |
| 196 | #define BAS_INURBS 3 |
| 197 | #define BAS_OUTURBS 3 |
| 198 | |
| 199 | /* variable commands in struct bc_state */ |
| 200 | #define AT_ISO 0 |
| 201 | #define AT_DIAL 1 |
| 202 | #define AT_MSN 2 |
| 203 | #define AT_BC 3 |
| 204 | #define AT_PROTO 4 |
| 205 | #define AT_TYPE 5 |
| 206 | #define AT_HLC 6 |
| 207 | #define AT_NUM 7 |
| 208 | |
| 209 | /* variables in struct at_state_t */ |
| 210 | #define VAR_ZSAU 0 |
| 211 | #define VAR_ZDLE 1 |
| 212 | #define VAR_ZVLS 2 |
| 213 | #define VAR_ZCTP 3 |
| 214 | #define VAR_NUM 4 |
| 215 | |
| 216 | #define STR_NMBR 0 |
| 217 | #define STR_ZCPN 1 |
| 218 | #define STR_ZCON 2 |
| 219 | #define STR_ZBC 3 |
| 220 | #define STR_ZHLC 4 |
| 221 | #define STR_NUM 5 |
| 222 | |
| 223 | #define EV_TIMEOUT -105 |
| 224 | #define EV_IF_VER -106 |
| 225 | #define EV_PROC_CIDMODE -107 |
| 226 | #define EV_SHUTDOWN -108 |
| 227 | #define EV_START -110 |
| 228 | #define EV_STOP -111 |
| 229 | #define EV_IF_LOCK -112 |
| 230 | #define EV_PROTO_L2 -113 |
| 231 | #define EV_ACCEPT -114 |
| 232 | #define EV_DIAL -115 |
| 233 | #define EV_HUP -116 |
| 234 | #define EV_BC_OPEN -117 |
| 235 | #define EV_BC_CLOSED -118 |
| 236 | |
| 237 | /* input state */ |
| 238 | #define INS_command 0x0001 |
| 239 | #define INS_DLE_char 0x0002 |
| 240 | #define INS_byte_stuff 0x0004 |
| 241 | #define INS_have_data 0x0008 |
| 242 | #define INS_skip_frame 0x0010 |
| 243 | #define INS_DLE_command 0x0020 |
| 244 | #define INS_flag_hunt 0x0040 |
| 245 | |
| 246 | /* channel state */ |
| 247 | #define CHS_D_UP 0x01 |
| 248 | #define CHS_B_UP 0x02 |
| 249 | #define CHS_NOTIFY_LL 0x04 |
| 250 | |
| 251 | #define ICALL_REJECT 0 |
| 252 | #define ICALL_ACCEPT 1 |
| 253 | #define ICALL_IGNORE 2 |
| 254 | |
| 255 | /* device state */ |
| 256 | #define MS_UNINITIALIZED 0 |
| 257 | #define MS_INIT 1 |
| 258 | #define MS_LOCKED 2 |
| 259 | #define MS_SHUTDOWN 3 |
| 260 | #define MS_RECOVER 4 |
| 261 | #define MS_READY 5 |
| 262 | |
| 263 | /* mode */ |
| 264 | #define M_UNKNOWN 0 |
| 265 | #define M_CONFIG 1 |
| 266 | #define M_UNIMODEM 2 |
| 267 | #define M_CID 3 |
| 268 | |
| 269 | /* start mode */ |
| 270 | #define SM_LOCKED 0 |
| 271 | #define SM_ISDN 1 /* default */ |
| 272 | |
| 273 | struct gigaset_ops; |
| 274 | struct gigaset_driver; |
| 275 | |
| 276 | struct usb_cardstate; |
| 277 | struct ser_cardstate; |
| 278 | struct bas_cardstate; |
| 279 | |
| 280 | struct bc_state; |
| 281 | struct usb_bc_state; |
| 282 | struct ser_bc_state; |
| 283 | struct bas_bc_state; |
| 284 | |
| 285 | struct reply_t { |
| 286 | int resp_code; /* RSP_XXXX */ |
| 287 | int min_ConState; /* <0 => ignore */ |
| 288 | int max_ConState; /* <0 => ignore */ |
| 289 | int parameter; /* e.g. ZSAU_XXXX <0: ignore*/ |
| 290 | int new_ConState; /* <0 => ignore */ |
| 291 | int timeout; /* >0 => *HZ; <=0 => TOUT_XXXX*/ |
| 292 | int action[MAXACT]; /* ACT_XXXX */ |
| 293 | char *command; /* NULL==none */ |
| 294 | }; |
| 295 | |
| 296 | extern struct reply_t gigaset_tab_cid_m10x[]; |
| 297 | extern struct reply_t gigaset_tab_nocid_m10x[]; |
| 298 | |
| 299 | struct inbuf_t { |
| 300 | unsigned char *rcvbuf; /* usb-gigaset receive buffer */ |
| 301 | struct bc_state *bcs; |
| 302 | struct cardstate *cs; |
| 303 | int inputstate; |
| 304 | |
| 305 | atomic_t head, tail; |
| 306 | unsigned char data[RBUFSIZE]; |
| 307 | }; |
| 308 | |
| 309 | /* isochronous write buffer structure |
| 310 | * circular buffer with pad area for extraction of complete USB frames |
| 311 | * - data[read..nextread-1] is valid data already submitted to the USB subsystem |
| 312 | * - data[nextread..write-1] is valid data yet to be sent |
| 313 | * - data[write] is the next byte to write to |
| 314 | * - in byte-oriented L2 procotols, it is completely free |
| 315 | * - in bit-oriented L2 procotols, it may contain a partial byte of valid data |
| 316 | * - data[write+1..read-1] is free |
| 317 | * - wbits is the number of valid data bits in data[write], starting at the LSB |
| 318 | * - writesem is the semaphore for writing to the buffer: |
| 319 | * 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 |
| 321 | * reached; if nextread==write (buffer contains no data to send), either the |
| 322 | * BAS_OUTBUFPAD bytes immediately before data[write] (if write>=BAS_OUTBUFPAD) |
| 323 | * or those of the pad area (if write<BAS_OUTBUFPAD) are also filled with that |
| 324 | * 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 | */ |
| 333 | struct isowbuf_t { |
| 334 | atomic_t read; |
| 335 | atomic_t nextread; |
| 336 | atomic_t write; |
| 337 | atomic_t writesem; |
| 338 | int wbits; |
| 339 | unsigned char data[BAS_OUTBUFSIZE + BAS_OUTBUFPAD]; |
| 340 | unsigned char idle; |
| 341 | }; |
| 342 | |
| 343 | /* isochronous write URB context structure |
| 344 | * data to be stored along with the URB and retrieved when it is returned |
| 345 | * as completed by the USB subsystem |
| 346 | * - urb: pointer to the URB itself |
| 347 | * - bcs: pointer to the B Channel control structure |
| 348 | * - limit: end of write buffer area covered by this URB |
| 349 | */ |
| 350 | struct isow_urbctx_t { |
| 351 | struct urb *urb; |
| 352 | struct bc_state *bcs; |
| 353 | int limit; |
| 354 | }; |
| 355 | |
| 356 | /* AT state structure |
| 357 | * data associated with the state of an ISDN connection, whether or not |
| 358 | * it is currently assigned a B channel |
| 359 | */ |
| 360 | struct at_state_t { |
| 361 | struct list_head list; |
| 362 | int waiting; |
| 363 | int getstring; |
| 364 | atomic_t timer_index; |
| 365 | unsigned long timer_expires; |
| 366 | int timer_active; |
| 367 | unsigned int ConState; /* State of connection */ |
| 368 | struct reply_t *replystruct; |
| 369 | int cid; |
| 370 | int int_var[VAR_NUM]; /* see VAR_XXXX */ |
| 371 | char *str_var[STR_NUM]; /* see STR_XXXX */ |
| 372 | unsigned pending_commands; /* see PC_XXXX */ |
| 373 | atomic_t seq_index; |
| 374 | |
| 375 | struct cardstate *cs; |
| 376 | struct bc_state *bcs; |
| 377 | }; |
| 378 | |
| 379 | struct resp_type_t { |
| 380 | unsigned char *response; |
| 381 | int resp_code; /* RSP_XXXX */ |
| 382 | int type; /* RT_XXXX */ |
| 383 | }; |
| 384 | |
| 385 | struct prot_skb { |
| 386 | atomic_t empty; |
| 387 | struct semaphore *sem; |
| 388 | struct sk_buff *skb; |
| 389 | }; |
| 390 | |
| 391 | struct event_t { |
| 392 | int type; |
| 393 | void *ptr, *arg; |
| 394 | int parameter; |
| 395 | int cid; |
| 396 | struct at_state_t *at_state; |
| 397 | }; |
| 398 | |
| 399 | /* This buffer holds all information about the used B-Channel */ |
| 400 | struct bc_state { |
| 401 | struct sk_buff *tx_skb; /* Current transfer buffer to modem */ |
| 402 | struct sk_buff_head squeue; /* B-Channel send Queue */ |
| 403 | |
| 404 | /* Variables for debugging .. */ |
| 405 | int corrupted; /* Counter for corrupted packages */ |
| 406 | int trans_down; /* Counter of packages (downstream) */ |
| 407 | int trans_up; /* Counter of packages (upstream) */ |
| 408 | |
| 409 | struct at_state_t at_state; |
| 410 | unsigned long rcvbytes; |
| 411 | |
| 412 | __u16 fcs; |
| 413 | struct sk_buff *skb; |
| 414 | int inputstate; /* see INS_XXXX */ |
| 415 | |
| 416 | int channel; |
| 417 | |
| 418 | struct cardstate *cs; |
| 419 | |
| 420 | unsigned chstate; /* bitmap (CHS_*) */ |
| 421 | int ignore; |
| 422 | unsigned proto2; /* Layer 2 protocol (ISDN_PROTO_L2_*) */ |
| 423 | char *commands[AT_NUM]; /* see AT_XXXX */ |
| 424 | |
| 425 | #ifdef CONFIG_GIGASET_DEBUG |
| 426 | int emptycount; |
| 427 | #endif |
| 428 | int busy; |
| 429 | int use_count; |
| 430 | |
| 431 | /* hardware drivers */ |
| 432 | union { |
| 433 | struct ser_bc_state *ser; /* private data of serial hardware driver */ |
| 434 | struct usb_bc_state *usb; /* private data of usb hardware driver */ |
| 435 | struct bas_bc_state *bas; |
| 436 | } hw; |
| 437 | }; |
| 438 | |
| 439 | struct cardstate { |
| 440 | struct gigaset_driver *driver; |
| 441 | unsigned minor_index; |
| 442 | |
| 443 | const struct gigaset_ops *ops; |
| 444 | |
| 445 | /* Stuff to handle communication */ |
| 446 | //wait_queue_head_t initwait; |
| 447 | wait_queue_head_t waitqueue; |
| 448 | int waiting; |
| 449 | atomic_t mode; /* see M_XXXX */ |
| 450 | atomic_t mstate; /* Modem state: see MS_XXXX */ |
| 451 | /* only changed by the event layer */ |
| 452 | int cmd_result; |
| 453 | |
| 454 | int channels; |
| 455 | struct bc_state *bcs; /* Array of struct bc_state */ |
| 456 | |
| 457 | int onechannel; /* data and commands transmitted in one stream (M10x) */ |
| 458 | |
| 459 | spinlock_t lock; |
| 460 | 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 */ |
| 462 | |
| 463 | struct inbuf_t *inbuf; |
| 464 | |
| 465 | struct cmdbuf_t *cmdbuf, *lastcmdbuf; |
| 466 | spinlock_t cmdlock; |
| 467 | unsigned curlen, cmdbytes; |
| 468 | |
| 469 | unsigned open_count; |
| 470 | struct tty_struct *tty; |
| 471 | struct tasklet_struct if_wake_tasklet; |
| 472 | unsigned control_state; |
| 473 | |
| 474 | unsigned fwver[4]; |
| 475 | int gotfwver; |
| 476 | |
| 477 | atomic_t running; /* !=0 if events are handled */ |
| 478 | atomic_t connected; /* !=0 if hardware is connected */ |
| 479 | |
| 480 | atomic_t cidmode; |
| 481 | |
| 482 | int myid; /* id for communication with LL */ |
| 483 | isdn_if iif; |
| 484 | |
| 485 | struct reply_t *tabnocid; |
| 486 | struct reply_t *tabcid; |
| 487 | int cs_init; |
| 488 | int ignoreframes; /* frames to ignore after setting up the B channel */ |
| 489 | struct semaphore sem; /* locks this structure: */ |
| 490 | /* connected is not changed, */ |
| 491 | /* hardware_up is not changed, */ |
| 492 | /* MState is not changed to or from MS_LOCKED */ |
| 493 | |
| 494 | struct timer_list timer; |
| 495 | int retry_count; |
| 496 | int dle; /* !=0 if modem commands/responses are dle encoded */ |
| 497 | int cur_at_seq; /* sequence of AT commands being processed */ |
| 498 | int curchannel; /* channel, those commands are meant for */ |
| 499 | atomic_t commands_pending; /* flag(s) in xxx.commands_pending have been set */ |
| 500 | struct tasklet_struct event_tasklet; /* tasklet for serializing AT commands. Scheduled |
| 501 | * -> for modem reponses (and incomming data for M10x) |
| 502 | * -> on timeout |
| 503 | * -> after setting bits in xxx.at_state.pending_command |
| 504 | * (e.g. command from LL) */ |
| 505 | struct tasklet_struct write_tasklet; /* tasklet for serial output |
| 506 | * (not used in base driver) */ |
| 507 | |
| 508 | /* event queue */ |
| 509 | struct event_t events[MAX_EVENTS]; |
| 510 | atomic_t ev_tail, ev_head; |
| 511 | spinlock_t ev_lock; |
| 512 | |
| 513 | /* current modem response */ |
| 514 | unsigned char respdata[MAX_RESP_SIZE]; |
| 515 | unsigned cbytes; |
| 516 | |
| 517 | /* hardware drivers */ |
| 518 | union { |
| 519 | struct usb_cardstate *usb; /* private data of USB hardware driver */ |
| 520 | struct ser_cardstate *ser; /* private data of serial hardware driver */ |
| 521 | struct bas_cardstate *bas; /* private data of base hardware driver */ |
| 522 | } hw; |
| 523 | }; |
| 524 | |
| 525 | struct gigaset_driver { |
| 526 | struct list_head list; |
| 527 | spinlock_t lock; /* locks minor tables and blocked */ |
| 528 | //struct semaphore sem; /* locks this structure */ |
| 529 | struct tty_driver *tty; |
| 530 | unsigned have_tty; |
| 531 | unsigned minor; |
| 532 | unsigned minors; |
| 533 | struct cardstate *cs; |
| 534 | unsigned *flags; |
| 535 | int blocked; |
| 536 | |
| 537 | const struct gigaset_ops *ops; |
| 538 | struct module *owner; |
| 539 | }; |
| 540 | |
| 541 | struct cmdbuf_t { |
| 542 | struct cmdbuf_t *next, *prev; |
| 543 | int len, offset; |
| 544 | struct tasklet_struct *wake_tasklet; |
| 545 | unsigned char buf[0]; |
| 546 | }; |
| 547 | |
| 548 | struct bas_bc_state { |
| 549 | /* isochronous output state */ |
| 550 | atomic_t running; |
| 551 | atomic_t corrbytes; |
| 552 | spinlock_t isooutlock; |
| 553 | struct isow_urbctx_t isoouturbs[BAS_OUTURBS]; |
| 554 | struct isow_urbctx_t *isooutdone, *isooutfree, *isooutovfl; |
| 555 | struct isowbuf_t *isooutbuf; |
| 556 | unsigned numsub; /* submitted URB counter (for diagnostic messages only) */ |
| 557 | struct tasklet_struct sent_tasklet; |
| 558 | |
| 559 | /* isochronous input state */ |
| 560 | spinlock_t isoinlock; |
| 561 | struct urb *isoinurbs[BAS_INURBS]; |
| 562 | unsigned char isoinbuf[BAS_INBUFSIZE * BAS_INURBS]; |
| 563 | struct urb *isoindone; /* completed isoc read URB */ |
| 564 | int loststatus; /* status of dropped URB */ |
| 565 | unsigned isoinlost; /* number of bytes lost */ |
| 566 | /* state of bit unstuffing algorithm (in addition to BC_state.inputstate) */ |
| 567 | unsigned seqlen; /* number of '1' bits not yet unstuffed */ |
| 568 | unsigned inbyte, inbits; /* collected bits for next byte */ |
| 569 | /* statistics */ |
| 570 | unsigned goodbytes; /* bytes correctly received */ |
| 571 | unsigned alignerrs; /* frames with incomplete byte at end */ |
| 572 | unsigned fcserrs; /* FCS errors */ |
| 573 | unsigned frameerrs; /* framing errors */ |
| 574 | unsigned giants; /* long frames */ |
| 575 | unsigned runts; /* short frames */ |
| 576 | unsigned aborts; /* HDLC aborts */ |
| 577 | unsigned shared0s; /* '0' bits shared between flags */ |
| 578 | unsigned stolen0s; /* '0' stuff bits also serving as leading flag bits */ |
| 579 | struct tasklet_struct rcvd_tasklet; |
| 580 | }; |
| 581 | |
| 582 | struct gigaset_ops { |
| 583 | /* Called from ev-layer.c/interface.c for sending AT commands to the device */ |
| 584 | int (*write_cmd)(struct cardstate *cs, |
| 585 | const unsigned char *buf, int len, |
| 586 | struct tasklet_struct *wake_tasklet); |
| 587 | |
| 588 | /* Called from interface.c for additional device control */ |
| 589 | int (*write_room)(struct cardstate *cs); |
| 590 | int (*chars_in_buffer)(struct cardstate *cs); |
| 591 | int (*brkchars)(struct cardstate *cs, const unsigned char buf[6]); |
| 592 | |
| 593 | /* Called from ev-layer.c after setting up connection |
| 594 | * Should call gigaset_bchannel_up(), when finished. */ |
| 595 | int (*init_bchannel)(struct bc_state *bcs); |
| 596 | |
| 597 | /* Called from ev-layer.c after hanging up |
| 598 | * Should call gigaset_bchannel_down(), when finished. */ |
| 599 | int (*close_bchannel)(struct bc_state *bcs); |
| 600 | |
| 601 | /* Called by gigaset_initcs() for setting up bcs->hw.xxx */ |
| 602 | int (*initbcshw)(struct bc_state *bcs); |
| 603 | |
| 604 | /* Called by gigaset_freecs() for freeing bcs->hw.xxx */ |
| 605 | int (*freebcshw)(struct bc_state *bcs); |
| 606 | |
| 607 | /* Called by gigaset_stop() or gigaset_bchannel_down() for resetting bcs->hw.xxx */ |
| 608 | void (*reinitbcshw)(struct bc_state *bcs); |
| 609 | |
| 610 | /* Called by gigaset_initcs() for setting up cs->hw.xxx */ |
| 611 | int (*initcshw)(struct cardstate *cs); |
| 612 | |
| 613 | /* Called by gigaset_freecs() for freeing cs->hw.xxx */ |
| 614 | void (*freecshw)(struct cardstate *cs); |
| 615 | |
| 616 | ///* Called by gigaset_stop() for killing URBs, shutting down the device, ... |
| 617 | // hardwareup: ==0: don't try to shut down the device, hardware is really not accessible |
| 618 | // !=0: hardware still up */ |
| 619 | //void (*stophw)(struct cardstate *cs, int hardwareup); |
| 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); |
| 624 | int (*set_line_ctrl)(struct cardstate *cs, unsigned cflag); |
| 625 | |
| 626 | /* Called from i4l.c to put an skb into the send-queue. */ |
| 627 | int (*send_skb)(struct bc_state *bcs, struct sk_buff *skb); |
| 628 | |
| 629 | /* Called from ev-layer.c to process a block of data |
| 630 | * received through the common/control channel. */ |
| 631 | void (*handle_input)(struct inbuf_t *inbuf); |
| 632 | |
| 633 | }; |
| 634 | |
| 635 | /* = Common structures and definitions ======================================= */ |
| 636 | |
| 637 | /* Parser states for DLE-Event: |
| 638 | * <DLE-EVENT>: <DLE_FLAG> "X" <EVENT> <DLE_FLAG> "." |
| 639 | * <DLE_FLAG>: 0x10 |
| 640 | * <EVENT>: ((a-z)* | (A-Z)* | (0-10)*)+ |
| 641 | */ |
| 642 | #define DLE_FLAG 0x10 |
| 643 | |
| 644 | /* =========================================================================== |
| 645 | * Functions implemented in asyncdata.c |
| 646 | */ |
| 647 | |
| 648 | /* Called from i4l.c to put an skb into the send-queue. |
| 649 | * After sending gigaset_skb_sent() should be called. */ |
| 650 | int gigaset_m10x_send_skb(struct bc_state *bcs, struct sk_buff *skb); |
| 651 | |
| 652 | /* Called from ev-layer.c to process a block of data |
| 653 | * received through the common/control channel. */ |
| 654 | void gigaset_m10x_input(struct inbuf_t *inbuf); |
| 655 | |
| 656 | /* =========================================================================== |
| 657 | * Functions implemented in isocdata.c |
| 658 | */ |
| 659 | |
| 660 | /* Called from i4l.c to put an skb into the send-queue. |
| 661 | * After sending gigaset_skb_sent() should be called. */ |
| 662 | int gigaset_isoc_send_skb(struct bc_state *bcs, struct sk_buff *skb); |
| 663 | |
| 664 | /* Called from ev-layer.c to process a block of data |
| 665 | * received through the common/control channel. */ |
| 666 | void gigaset_isoc_input(struct inbuf_t *inbuf); |
| 667 | |
| 668 | /* Called from bas-gigaset.c to process a block of data |
| 669 | * received through the isochronous channel */ |
| 670 | void gigaset_isoc_receive(unsigned char *src, unsigned count, struct bc_state *bcs); |
| 671 | |
| 672 | /* Called from bas-gigaset.c to put a block of data |
| 673 | * into the isochronous output buffer */ |
| 674 | int gigaset_isoc_buildframe(struct bc_state *bcs, unsigned char *in, int len); |
| 675 | |
| 676 | /* Called from bas-gigaset.c to initialize the isochronous output buffer */ |
| 677 | void gigaset_isowbuf_init(struct isowbuf_t *iwb, unsigned char idle); |
| 678 | |
| 679 | /* Called from bas-gigaset.c to retrieve a block of bytes for sending */ |
| 680 | int gigaset_isowbuf_getbytes(struct isowbuf_t *iwb, int size); |
| 681 | |
| 682 | /* =========================================================================== |
| 683 | * Functions implemented in i4l.c/gigaset.h |
| 684 | */ |
| 685 | |
| 686 | /* Called by gigaset_initcs() for setting up with the isdn4linux subsystem */ |
| 687 | int gigaset_register_to_LL(struct cardstate *cs, const char *isdnid); |
| 688 | |
| 689 | /* Called from xxx-gigaset.c to indicate completion of sending an skb */ |
| 690 | void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *skb); |
| 691 | |
| 692 | /* Called from common.c/ev-layer.c to indicate events relevant to the LL */ |
| 693 | int gigaset_isdn_icall(struct at_state_t *at_state); |
| 694 | int gigaset_isdn_setup_accept(struct at_state_t *at_state); |
| 695 | int gigaset_isdn_setup_dial(struct at_state_t *at_state, void *data); |
| 696 | |
| 697 | void gigaset_i4l_cmd(struct cardstate *cs, int cmd); |
| 698 | void gigaset_i4l_channel_cmd(struct bc_state *bcs, int cmd); |
| 699 | |
| 700 | |
| 701 | static inline void gigaset_isdn_rcv_err(struct bc_state *bcs) |
| 702 | { |
| 703 | isdn_ctrl response; |
| 704 | |
| 705 | /* error -> LL */ |
| 706 | dbg(DEBUG_CMD, "sending L1ERR"); |
| 707 | response.driver = bcs->cs->myid; |
| 708 | response.command = ISDN_STAT_L1ERR; |
| 709 | response.arg = bcs->channel; |
| 710 | response.parm.errcode = ISDN_STAT_L1ERR_RECV; |
| 711 | bcs->cs->iif.statcallb(&response); |
| 712 | } |
| 713 | |
| 714 | /* =========================================================================== |
| 715 | * Functions implemented in ev-layer.c |
| 716 | */ |
| 717 | |
| 718 | /* tasklet called from common.c to process queued events */ |
| 719 | void gigaset_handle_event(unsigned long data); |
| 720 | |
| 721 | /* called from isocdata.c / asyncdata.c |
| 722 | * when a complete modem response line has been received */ |
| 723 | void gigaset_handle_modem_response(struct cardstate *cs); |
| 724 | |
| 725 | /* =========================================================================== |
| 726 | * Functions implemented in proc.c |
| 727 | */ |
| 728 | |
| 729 | /* initialize sysfs for device */ |
| 730 | void gigaset_init_dev_sysfs(struct usb_interface *interface); |
| 731 | void gigaset_free_dev_sysfs(struct usb_interface *interface); |
| 732 | |
| 733 | /* =========================================================================== |
| 734 | * Functions implemented in common.c/gigaset.h |
| 735 | */ |
| 736 | |
| 737 | void gigaset_bcs_reinit(struct bc_state *bcs); |
| 738 | void gigaset_at_init(struct at_state_t *at_state, struct bc_state *bcs, |
| 739 | struct cardstate *cs, int cid); |
| 740 | int gigaset_get_channel(struct bc_state *bcs); |
| 741 | void gigaset_free_channel(struct bc_state *bcs); |
| 742 | int gigaset_get_channels(struct cardstate *cs); |
| 743 | void gigaset_free_channels(struct cardstate *cs); |
| 744 | void gigaset_block_channels(struct cardstate *cs); |
| 745 | |
| 746 | /* Allocate and initialize driver structure. */ |
| 747 | struct gigaset_driver *gigaset_initdriver(unsigned minor, unsigned minors, |
| 748 | const char *procname, |
| 749 | const char *devname, |
| 750 | const char *devfsname, |
| 751 | const struct gigaset_ops *ops, |
| 752 | struct module *owner); |
| 753 | |
| 754 | /* Deallocate driver structure. */ |
| 755 | void gigaset_freedriver(struct gigaset_driver *drv); |
| 756 | void gigaset_debugdrivers(void); |
| 757 | struct cardstate *gigaset_get_cs_by_minor(unsigned minor); |
| 758 | struct cardstate *gigaset_get_cs_by_tty(struct tty_struct *tty); |
| 759 | struct cardstate *gigaset_get_cs_by_id(int id); |
| 760 | |
| 761 | /* For drivers without fixed assignment device<->cardstate (usb) */ |
| 762 | struct cardstate *gigaset_getunassignedcs(struct gigaset_driver *drv); |
| 763 | void gigaset_unassign(struct cardstate *cs); |
| 764 | void gigaset_blockdriver(struct gigaset_driver *drv); |
| 765 | |
| 766 | /* Allocate and initialize card state. Calls hardware dependent gigaset_init[b]cs(). */ |
| 767 | struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels, |
| 768 | int onechannel, int ignoreframes, |
| 769 | int cidmode, const char *modulename); |
| 770 | |
| 771 | /* Free card state. Calls hardware dependent gigaset_free[b]cs(). */ |
| 772 | void gigaset_freecs(struct cardstate *cs); |
| 773 | |
| 774 | /* Tell common.c that hardware and driver are ready. */ |
| 775 | int gigaset_start(struct cardstate *cs); |
| 776 | |
| 777 | /* Tell common.c that the device is not present any more. */ |
| 778 | void gigaset_stop(struct cardstate *cs); |
| 779 | |
| 780 | /* Tell common.c that the driver is being unloaded. */ |
| 781 | void gigaset_shutdown(struct cardstate *cs); |
| 782 | |
| 783 | /* Tell common.c that an skb has been sent. */ |
| 784 | void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *skb); |
| 785 | |
| 786 | /* Append event to the queue. |
| 787 | * Returns NULL on failure or a pointer to the event on success. |
| 788 | * ptr must be kmalloc()ed (and not be freed by the caller). |
| 789 | */ |
| 790 | struct event_t *gigaset_add_event(struct cardstate *cs, |
| 791 | struct at_state_t *at_state, int type, |
| 792 | void *ptr, int parameter, void *arg); |
| 793 | |
| 794 | /* Called on CONFIG1 command from frontend. */ |
| 795 | int gigaset_enterconfigmode(struct cardstate *cs); //0: success <0: errorcode |
| 796 | |
| 797 | /* cs->lock must not be locked */ |
| 798 | static inline void gigaset_schedule_event(struct cardstate *cs) |
| 799 | { |
| 800 | unsigned long flags; |
| 801 | spin_lock_irqsave(&cs->lock, flags); |
| 802 | if (atomic_read(&cs->running)) |
| 803 | tasklet_schedule(&cs->event_tasklet); |
| 804 | spin_unlock_irqrestore(&cs->lock, flags); |
| 805 | } |
| 806 | |
| 807 | /* Tell common.c that B channel has been closed. */ |
| 808 | /* cs->lock must not be locked */ |
| 809 | static inline void gigaset_bchannel_down(struct bc_state *bcs) |
| 810 | { |
| 811 | gigaset_add_event(bcs->cs, &bcs->at_state, EV_BC_CLOSED, NULL, 0, NULL); |
| 812 | |
| 813 | dbg(DEBUG_CMD, "scheduling BC_CLOSED"); |
| 814 | gigaset_schedule_event(bcs->cs); |
| 815 | } |
| 816 | |
| 817 | /* Tell common.c that B channel has been opened. */ |
| 818 | /* cs->lock must not be locked */ |
| 819 | static inline void gigaset_bchannel_up(struct bc_state *bcs) |
| 820 | { |
| 821 | gigaset_add_event(bcs->cs, &bcs->at_state, EV_BC_OPEN, NULL, 0, NULL); |
| 822 | |
| 823 | dbg(DEBUG_CMD, "scheduling BC_OPEN"); |
| 824 | gigaset_schedule_event(bcs->cs); |
| 825 | } |
| 826 | |
| 827 | /* handling routines for sk_buff */ |
| 828 | /* ============================= */ |
| 829 | |
| 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 | */ |
| 837 | static 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 |
| 848 | * Warning: skb must not be accessed anymore! |
| 849 | */ |
| 850 | static inline void gigaset_rcv_skb(struct sk_buff *skb, |
| 851 | struct cardstate *cs, |
| 852 | struct bc_state *bcs) |
| 853 | { |
| 854 | cs->iif.rcvcallb_skb(cs->myid, bcs->channel, skb); |
| 855 | bcs->trans_down++; |
| 856 | } |
| 857 | |
| 858 | /* handle reception of corrupted skb |
| 859 | * Warning: skb must not be accessed anymore! |
| 860 | */ |
| 861 | static inline void gigaset_rcv_error(struct sk_buff *procskb, |
| 862 | struct cardstate *cs, |
| 863 | struct bc_state *bcs) |
| 864 | { |
| 865 | if (procskb) |
| 866 | dev_kfree_skb(procskb); |
| 867 | |
| 868 | if (bcs->ignore) |
| 869 | --bcs->ignore; |
| 870 | else { |
| 871 | ++bcs->corrupted; |
| 872 | gigaset_isdn_rcv_err(bcs); |
| 873 | } |
| 874 | } |
| 875 | |
| 876 | |
| 877 | /* bitwise byte inversion table */ |
| 878 | extern __u8 gigaset_invtab[]; /* in common.c */ |
| 879 | |
| 880 | |
| 881 | /* append received bytes to inbuf */ |
| 882 | static inline int gigaset_fill_inbuf(struct inbuf_t *inbuf, |
| 883 | const unsigned char *src, |
| 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 | |
| 921 | /* =========================================================================== |
| 922 | * Functions implemented in interface.c |
| 923 | */ |
| 924 | |
| 925 | /* initialize interface */ |
| 926 | void gigaset_if_initdriver(struct gigaset_driver *drv, const char *procname, |
| 927 | const char *devname, const char *devfsname); |
| 928 | /* release interface */ |
| 929 | void gigaset_if_freedriver(struct gigaset_driver *drv); |
| 930 | /* add minor */ |
| 931 | void gigaset_if_init(struct cardstate *cs); |
| 932 | /* remove minor */ |
| 933 | void gigaset_if_free(struct cardstate *cs); |
| 934 | /* device received data */ |
| 935 | void gigaset_if_receive(struct cardstate *cs, |
| 936 | unsigned char *buffer, size_t len); |
| 937 | |
| 938 | #endif |