diff options
Diffstat (limited to 'drivers/staging/isdn/gigaset/gigaset.h')
| -rw-r--r-- | drivers/staging/isdn/gigaset/gigaset.h | 827 |
1 files changed, 0 insertions, 827 deletions
diff --git a/drivers/staging/isdn/gigaset/gigaset.h b/drivers/staging/isdn/gigaset/gigaset.h deleted file mode 100644 index 0ecc2b5ea553..000000000000 --- a/drivers/staging/isdn/gigaset/gigaset.h +++ /dev/null @@ -1,827 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ -/* - * Siemens Gigaset 307x driver - * Common header file for all connection variants - * - * Written by Stefan Eilers - * and Hansjoerg Lipp <hjlipp@web.de> - * - * ===================================================================== - * ===================================================================== - */ - -#ifndef GIGASET_H -#define GIGASET_H - -/* define global prefix for pr_ macros in linux/kernel.h */ -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/compiler.h> -#include <linux/types.h> -#include <linux/ctype.h> -#include <linux/slab.h> -#include <linux/spinlock.h> -#include <linux/skbuff.h> -#include <linux/netdevice.h> -#include <linux/ppp_defs.h> -#include <linux/timer.h> -#include <linux/interrupt.h> -#include <linux/tty.h> -#include <linux/tty_driver.h> -#include <linux/list.h> -#include <linux/atomic.h> - -#define GIG_VERSION {0, 5, 0, 0} -#define GIG_COMPAT {0, 4, 0, 0} - -#define MAX_REC_PARAMS 10 /* Max. number of params in response string */ -#define MAX_RESP_SIZE 511 /* Max. size of a response string */ - -#define MAX_EVENTS 64 /* size of event queue */ - -#define RBUFSIZE 8192 - -#define GIG_TICK 100 /* in milliseconds */ - -/* timeout values (unit: 1 sec) */ -#define INIT_TIMEOUT 1 - -/* timeout values (unit: 0.1 sec) */ -#define RING_TIMEOUT 3 /* for additional parameters to RING */ -#define BAS_TIMEOUT 20 /* for response to Base USB ops */ -#define ATRDY_TIMEOUT 3 /* for HD_READY_SEND_ATDATA */ - -#define BAS_RETRY 3 /* max. retries for base USB ops */ - -#define MAXACT 3 - -extern int gigaset_debuglevel; /* "needs" cast to (enum debuglevel) */ - -/* debug flags, combine by adding/bitwise OR */ -enum debuglevel { - DEBUG_INTR = 0x00008, /* interrupt processing */ - DEBUG_CMD = 0x00020, /* sent/received LL commands */ - DEBUG_STREAM = 0x00040, /* application data stream I/O events */ - DEBUG_STREAM_DUMP = 0x00080, /* application data stream content */ - DEBUG_LLDATA = 0x00100, /* sent/received LL data */ - DEBUG_EVENT = 0x00200, /* event processing */ - DEBUG_HDLC = 0x00800, /* M10x HDLC processing */ - DEBUG_CHANNEL = 0x01000, /* channel allocation/deallocation */ - DEBUG_TRANSCMD = 0x02000, /* AT-COMMANDS+RESPONSES */ - DEBUG_MCMD = 0x04000, /* COMMANDS THAT ARE SENT VERY OFTEN */ - DEBUG_INIT = 0x08000, /* (de)allocation+initialization of data - structures */ - DEBUG_SUSPEND = 0x10000, /* suspend/resume processing */ - DEBUG_OUTPUT = 0x20000, /* output to device */ - DEBUG_ISO = 0x40000, /* isochronous transfers */ - DEBUG_IF = 0x80000, /* character device operations */ - DEBUG_USBREQ = 0x100000, /* USB communication (except payload - data) */ - DEBUG_LOCKCMD = 0x200000, /* AT commands and responses when - MS_LOCKED */ - - DEBUG_ANY = 0x3fffff, /* print message if any of the others is - activated */ -}; - -#ifdef CONFIG_GIGASET_DEBUG - -#define gig_dbg(level, format, arg...) \ - do { \ - if (unlikely(((enum debuglevel)gigaset_debuglevel) & (level))) \ - printk(KERN_DEBUG KBUILD_MODNAME ": " format "\n", \ - ## arg); \ - } while (0) -#define DEBUG_DEFAULT (DEBUG_TRANSCMD | DEBUG_CMD | DEBUG_USBREQ) - -#else - -#define gig_dbg(level, format, arg...) do {} while (0) -#define DEBUG_DEFAULT 0 - -#endif - -void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg, - size_t len, const unsigned char *buf); - -/* connection state */ -#define ZSAU_NONE 0 -#define ZSAU_PROCEEDING 1 -#define ZSAU_CALL_DELIVERED 2 -#define ZSAU_ACTIVE 3 -#define ZSAU_DISCONNECT_IND 4 -#define ZSAU_NULL 5 -#define ZSAU_DISCONNECT_REQ 6 -#define ZSAU_UNKNOWN -1 - -/* USB control transfer requests */ -#define OUT_VENDOR_REQ (USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT) -#define IN_VENDOR_REQ (USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT) - -/* interrupt pipe messages */ -#define HD_B1_FLOW_CONTROL 0x80 -#define HD_B2_FLOW_CONTROL 0x81 -#define HD_RECEIVEATDATA_ACK (0x35) /* 3070 */ -#define HD_READY_SEND_ATDATA (0x36) /* 3070 */ -#define HD_OPEN_ATCHANNEL_ACK (0x37) /* 3070 */ -#define HD_CLOSE_ATCHANNEL_ACK (0x38) /* 3070 */ -#define HD_DEVICE_INIT_OK (0x11) /* ISurf USB + 3070 */ -#define HD_OPEN_B1CHANNEL_ACK (0x51) /* ISurf USB + 3070 */ -#define HD_OPEN_B2CHANNEL_ACK (0x52) /* ISurf USB + 3070 */ -#define HD_CLOSE_B1CHANNEL_ACK (0x53) /* ISurf USB + 3070 */ -#define HD_CLOSE_B2CHANNEL_ACK (0x54) /* ISurf USB + 3070 */ -#define HD_SUSPEND_END (0x61) /* ISurf USB */ -#define HD_RESET_INTERRUPT_PIPE_ACK (0xFF) /* ISurf USB + 3070 */ - -/* control requests */ -#define HD_OPEN_B1CHANNEL (0x23) /* ISurf USB + 3070 */ -#define HD_CLOSE_B1CHANNEL (0x24) /* ISurf USB + 3070 */ -#define HD_OPEN_B2CHANNEL (0x25) /* ISurf USB + 3070 */ -#define HD_CLOSE_B2CHANNEL (0x26) /* ISurf USB + 3070 */ -#define HD_RESET_INTERRUPT_PIPE (0x27) /* ISurf USB + 3070 */ -#define HD_DEVICE_INIT_ACK (0x34) /* ISurf USB + 3070 */ -#define HD_WRITE_ATMESSAGE (0x12) /* 3070 */ -#define HD_READ_ATMESSAGE (0x13) /* 3070 */ -#define HD_OPEN_ATCHANNEL (0x28) /* 3070 */ -#define HD_CLOSE_ATCHANNEL (0x29) /* 3070 */ - -/* number of B channels supported by base driver */ -#define BAS_CHANNELS 2 - -/* USB frames for isochronous transfer */ -#define BAS_FRAMETIME 1 /* number of milliseconds between frames */ -#define BAS_NUMFRAMES 8 /* number of frames per URB */ -#define BAS_MAXFRAME 16 /* allocated bytes per frame */ -#define BAS_NORMFRAME 8 /* send size without flow control */ -#define BAS_HIGHFRAME 10 /* " " with positive flow control */ -#define BAS_LOWFRAME 5 /* " " with negative flow control */ -#define BAS_CORRFRAMES 4 /* flow control multiplicator */ - -#define BAS_INBUFSIZE (BAS_MAXFRAME * BAS_NUMFRAMES) /* size of isoc in buf - * per URB */ -#define BAS_OUTBUFSIZE 4096 /* size of common isoc out buffer */ -#define BAS_OUTBUFPAD BAS_MAXFRAME /* size of pad area for isoc out buf */ - -#define BAS_INURBS 3 -#define BAS_OUTURBS 3 - -/* variable commands in struct bc_state */ -#define AT_ISO 0 -#define AT_DIAL 1 -#define AT_MSN 2 -#define AT_BC 3 -#define AT_PROTO 4 -#define AT_TYPE 5 -#define AT_CLIP 6 -/* total number */ -#define AT_NUM 7 - -/* variables in struct at_state_t */ -/* - numeric */ -#define VAR_ZSAU 0 -#define VAR_ZDLE 1 -#define VAR_ZCTP 2 -/* total number */ -#define VAR_NUM 3 -/* - string */ -#define STR_NMBR 0 -#define STR_ZCPN 1 -#define STR_ZCON 2 -#define STR_ZBC 3 -#define STR_ZHLC 4 -/* total number */ -#define STR_NUM 5 - -/* event types */ -#define EV_TIMEOUT -105 -#define EV_IF_VER -106 -#define EV_PROC_CIDMODE -107 -#define EV_SHUTDOWN -108 -#define EV_START -110 -#define EV_STOP -111 -#define EV_IF_LOCK -112 -#define EV_ACCEPT -114 -#define EV_DIAL -115 -#define EV_HUP -116 -#define EV_BC_OPEN -117 -#define EV_BC_CLOSED -118 - -/* input state */ -#define INS_command 0x0001 /* receiving messages (not payload data) */ -#define INS_DLE_char 0x0002 /* DLE flag received (in DLE mode) */ -#define INS_byte_stuff 0x0004 -#define INS_have_data 0x0008 -#define INS_DLE_command 0x0020 /* DLE message start (<DLE> X) received */ -#define INS_flag_hunt 0x0040 - -/* channel state */ -#define CHS_D_UP 0x01 -#define CHS_B_UP 0x02 -#define CHS_NOTIFY_LL 0x04 - -#define ICALL_REJECT 0 -#define ICALL_ACCEPT 1 -#define ICALL_IGNORE 2 - -/* device state */ -#define MS_UNINITIALIZED 0 -#define MS_INIT 1 -#define MS_LOCKED 2 -#define MS_SHUTDOWN 3 -#define MS_RECOVER 4 -#define MS_READY 5 - -/* mode */ -#define M_UNKNOWN 0 -#define M_CONFIG 1 -#define M_UNIMODEM 2 -#define M_CID 3 - -/* start mode */ -#define SM_LOCKED 0 -#define SM_ISDN 1 /* default */ - -/* layer 2 protocols (AT^SBPR=...) */ -#define L2_BITSYNC 0 -#define L2_HDLC 1 -#define L2_VOICE 2 - -struct gigaset_ops; -struct gigaset_driver; - -struct usb_cardstate; -struct ser_cardstate; -struct bas_cardstate; - -struct bc_state; -struct usb_bc_state; -struct ser_bc_state; -struct bas_bc_state; - -struct reply_t { - int resp_code; /* RSP_XXXX */ - int min_ConState; /* <0 => ignore */ - int max_ConState; /* <0 => ignore */ - int parameter; /* e.g. ZSAU_XXXX <0: ignore*/ - int new_ConState; /* <0 => ignore */ - int timeout; /* >0 => *HZ; <=0 => TOUT_XXXX*/ - int action[MAXACT]; /* ACT_XXXX */ - char *command; /* NULL==none */ -}; - -extern struct reply_t gigaset_tab_cid[]; -extern struct reply_t gigaset_tab_nocid[]; - -struct inbuf_t { - struct cardstate *cs; - int inputstate; - int head, tail; - unsigned char data[RBUFSIZE]; -}; - -/* isochronous write buffer structure - * circular buffer with pad area for extraction of complete USB frames - * - data[read..nextread-1] is valid data already submitted to the USB subsystem - * - data[nextread..write-1] is valid data yet to be sent - * - data[write] is the next byte to write to - * - in byte-oriented L2 procotols, it is completely free - * - in bit-oriented L2 procotols, it may contain a partial byte of valid data - * - data[write+1..read-1] is free - * - wbits is the number of valid data bits in data[write], starting at the LSB - * - writesem is the semaphore for writing to the buffer: - * if writesem <= 0, data[write..read-1] is currently being written to - * - idle contains the byte value to repeat when the end of valid data is - * reached; if nextread==write (buffer contains no data to send), either the - * BAS_OUTBUFPAD bytes immediately before data[write] (if - * write>=BAS_OUTBUFPAD) or those of the pad area (if write<BAS_OUTBUFPAD) - * are also filled with that value - */ -struct isowbuf_t { - int read; - int nextread; - int write; - atomic_t writesem; - int wbits; - unsigned char data[BAS_OUTBUFSIZE + BAS_OUTBUFPAD]; - unsigned char idle; -}; - -/* isochronous write URB context structure - * data to be stored along with the URB and retrieved when it is returned - * as completed by the USB subsystem - * - urb: pointer to the URB itself - * - bcs: pointer to the B Channel control structure - * - limit: end of write buffer area covered by this URB - * - status: URB completion status - */ -struct isow_urbctx_t { - struct urb *urb; - struct bc_state *bcs; - int limit; - int status; -}; - -/* AT state structure - * data associated with the state of an ISDN connection, whether or not - * it is currently assigned a B channel - */ -struct at_state_t { - struct list_head list; - int waiting; - int getstring; - unsigned timer_index; - unsigned long timer_expires; - int timer_active; - unsigned int ConState; /* State of connection */ - struct reply_t *replystruct; - int cid; - int int_var[VAR_NUM]; /* see VAR_XXXX */ - char *str_var[STR_NUM]; /* see STR_XXXX */ - unsigned pending_commands; /* see PC_XXXX */ - unsigned seq_index; - - struct cardstate *cs; - struct bc_state *bcs; -}; - -struct event_t { - int type; - void *ptr, *arg; - int parameter; - int cid; - struct at_state_t *at_state; -}; - -/* This buffer holds all information about the used B-Channel */ -struct bc_state { - struct sk_buff *tx_skb; /* Current transfer buffer to modem */ - struct sk_buff_head squeue; /* B-Channel send Queue */ - - /* Variables for debugging .. */ - int corrupted; /* Counter for corrupted packages */ - int trans_down; /* Counter of packages (downstream) */ - int trans_up; /* Counter of packages (upstream) */ - - struct at_state_t at_state; - - /* receive buffer */ - unsigned rx_bufsize; /* max size accepted by application */ - struct sk_buff *rx_skb; - __u16 rx_fcs; - int inputstate; /* see INS_XXXX */ - - int channel; - - struct cardstate *cs; - - unsigned chstate; /* bitmap (CHS_*) */ - int ignore; - unsigned proto2; /* layer 2 protocol (L2_*) */ - char *commands[AT_NUM]; /* see AT_XXXX */ - -#ifdef CONFIG_GIGASET_DEBUG - int emptycount; -#endif - int busy; - int use_count; - - /* private data of hardware drivers */ - union { - struct ser_bc_state *ser; /* serial hardware driver */ - struct usb_bc_state *usb; /* usb hardware driver (m105) */ - struct bas_bc_state *bas; /* usb hardware driver (base) */ - } hw; - - void *ap; /* associated LL application */ - int apconnstate; /* LL application connection state */ - spinlock_t aplock; -}; - -struct cardstate { - struct gigaset_driver *driver; - unsigned minor_index; - struct device *dev; - struct device *tty_dev; - unsigned flags; - - const struct gigaset_ops *ops; - - /* Stuff to handle communication */ - wait_queue_head_t waitqueue; - int waiting; - int mode; /* see M_XXXX */ - int mstate; /* Modem state: see MS_XXXX */ - /* only changed by the event layer */ - int cmd_result; - - int channels; - struct bc_state *bcs; /* Array of struct bc_state */ - - int onechannel; /* data and commands transmitted in one - stream (M10x) */ - - spinlock_t lock; - struct at_state_t at_state; /* at_state_t for cid == 0 */ - struct list_head temp_at_states;/* list of temporary "struct - at_state_t"s without B channel */ - - struct inbuf_t *inbuf; - - struct cmdbuf_t *cmdbuf, *lastcmdbuf; - spinlock_t cmdlock; - unsigned curlen, cmdbytes; - - struct tty_port port; - struct tasklet_struct if_wake_tasklet; - unsigned control_state; - - unsigned fwver[4]; - int gotfwver; - - unsigned running; /* !=0 if events are handled */ - unsigned connected; /* !=0 if hardware is connected */ - unsigned isdn_up; /* !=0 after gigaset_isdn_start() */ - - unsigned cidmode; - - int myid; /* id for communication with LL */ - void *iif; /* LL interface structure */ - unsigned short hw_hdr_len; /* headroom needed in data skbs */ - - struct reply_t *tabnocid; - struct reply_t *tabcid; - int cs_init; - int ignoreframes; /* frames to ignore after setting up the - B channel */ - struct mutex mutex; /* locks this structure: - * connected is not changed, - * hardware_up is not changed, - * MState is not changed to or from - * MS_LOCKED */ - - struct timer_list timer; - int retry_count; - int dle; /* !=0 if DLE mode is active - (ZDLE=1 received -- M10x only) */ - int cur_at_seq; /* sequence of AT commands being - processed */ - int curchannel; /* channel those commands are meant - for */ - int commands_pending; /* flag(s) in xxx.commands_pending have - been set */ - struct tasklet_struct - event_tasklet; /* tasklet for serializing AT commands. - * Scheduled - * -> for modem reponses (and - * incoming data for M10x) - * -> on timeout - * -> after setting bits in - * xxx.at_state.pending_command - * (e.g. command from LL) */ - struct tasklet_struct - write_tasklet; /* tasklet for serial output - * (not used in base driver) */ - - /* event queue */ - struct event_t events[MAX_EVENTS]; - unsigned ev_tail, ev_head; - spinlock_t ev_lock; - - /* current modem response */ - unsigned char respdata[MAX_RESP_SIZE + 1]; - unsigned cbytes; - - /* private data of hardware drivers */ - union { - struct usb_cardstate *usb; /* USB hardware driver (m105) */ - struct ser_cardstate *ser; /* serial hardware driver */ - struct bas_cardstate *bas; /* USB hardware driver (base) */ - } hw; -}; - -struct gigaset_driver { - struct list_head list; - spinlock_t lock; /* locks minor tables and blocked */ - struct tty_driver *tty; - unsigned have_tty; - unsigned minor; - unsigned minors; - struct cardstate *cs; - int blocked; - - const struct gigaset_ops *ops; - struct module *owner; -}; - -struct cmdbuf_t { - struct cmdbuf_t *next, *prev; - int len, offset; - struct tasklet_struct *wake_tasklet; - unsigned char buf[0]; -}; - -struct bas_bc_state { - /* isochronous output state */ - int running; - atomic_t corrbytes; - spinlock_t isooutlock; - struct isow_urbctx_t isoouturbs[BAS_OUTURBS]; - struct isow_urbctx_t *isooutdone, *isooutfree, *isooutovfl; - struct isowbuf_t *isooutbuf; - unsigned numsub; /* submitted URB counter - (for diagnostic messages only) */ - struct tasklet_struct sent_tasklet; - - /* isochronous input state */ - spinlock_t isoinlock; - struct urb *isoinurbs[BAS_INURBS]; - unsigned char isoinbuf[BAS_INBUFSIZE * BAS_INURBS]; - struct urb *isoindone; /* completed isoc read URB */ - int isoinstatus; /* status of completed URB */ - int loststatus; /* status of dropped URB */ - unsigned isoinlost; /* number of bytes lost */ - /* state of bit unstuffing algorithm - (in addition to BC_state.inputstate) */ - unsigned seqlen; /* number of '1' bits not yet - unstuffed */ - unsigned inbyte, inbits; /* collected bits for next byte */ - /* statistics */ - unsigned goodbytes; /* bytes correctly received */ - unsigned alignerrs; /* frames with incomplete byte at end */ - unsigned fcserrs; /* FCS errors */ - unsigned frameerrs; /* framing errors */ - unsigned giants; /* long frames */ - unsigned runts; /* short frames */ - unsigned aborts; /* HDLC aborts */ - unsigned shared0s; /* '0' bits shared between flags */ - unsigned stolen0s; /* '0' stuff bits also serving as - leading flag bits */ - struct tasklet_struct rcvd_tasklet; -}; - -struct gigaset_ops { - /* Called from ev-layer.c/interface.c for sending AT commands to the - device */ - int (*write_cmd)(struct cardstate *cs, struct cmdbuf_t *cb); - - /* Called from interface.c for additional device control */ - int (*write_room)(struct cardstate *cs); - int (*chars_in_buffer)(struct cardstate *cs); - int (*brkchars)(struct cardstate *cs, const unsigned char buf[6]); - - /* Called from ev-layer.c after setting up connection - * Should call gigaset_bchannel_up(), when finished. */ - int (*init_bchannel)(struct bc_state *bcs); - - /* Called from ev-layer.c after hanging up - * Should call gigaset_bchannel_down(), when finished. */ - int (*close_bchannel)(struct bc_state *bcs); - - /* Called by gigaset_initcs() for setting up bcs->hw.xxx */ - int (*initbcshw)(struct bc_state *bcs); - - /* Called by gigaset_freecs() for freeing bcs->hw.xxx */ - void (*freebcshw)(struct bc_state *bcs); - - /* Called by gigaset_bchannel_down() for resetting bcs->hw.xxx */ - void (*reinitbcshw)(struct bc_state *bcs); - - /* Called by gigaset_initcs() for setting up cs->hw.xxx */ - int (*initcshw)(struct cardstate *cs); - - /* Called by gigaset_freecs() for freeing cs->hw.xxx */ - void (*freecshw)(struct cardstate *cs); - - /* Called from common.c/interface.c for additional serial port - control */ - int (*set_modem_ctrl)(struct cardstate *cs, unsigned old_state, - unsigned new_state); - int (*baud_rate)(struct cardstate *cs, unsigned cflag); - int (*set_line_ctrl)(struct cardstate *cs, unsigned cflag); - - /* Called from LL interface to put an skb into the send-queue. - * After sending is completed, gigaset_skb_sent() must be called - * with the skb's link layer header preserved. */ - int (*send_skb)(struct bc_state *bcs, struct sk_buff *skb); - - /* Called from ev-layer.c to process a block of data - * received through the common/control channel. */ - void (*handle_input)(struct inbuf_t *inbuf); - -}; - -/* = Common structures and definitions ======================================= - */ - -/* Parser states for DLE-Event: - * <DLE-EVENT>: <DLE_FLAG> "X" <EVENT> <DLE_FLAG> "." - * <DLE_FLAG>: 0x10 - * <EVENT>: ((a-z)* | (A-Z)* | (0-10)*)+ - */ -#define DLE_FLAG 0x10 - -/* =========================================================================== - * Functions implemented in asyncdata.c - */ - -/* Called from LL interface to put an skb into the send queue. */ -int gigaset_m10x_send_skb(struct bc_state *bcs, struct sk_buff *skb); - -/* Called from ev-layer.c to process a block of data - * received through the common/control channel. */ -void gigaset_m10x_input(struct inbuf_t *inbuf); - -/* =========================================================================== - * Functions implemented in isocdata.c - */ - -/* Called from LL interface to put an skb into the send queue. */ -int gigaset_isoc_send_skb(struct bc_state *bcs, struct sk_buff *skb); - -/* Called from ev-layer.c to process a block of data - * received through the common/control channel. */ -void gigaset_isoc_input(struct inbuf_t *inbuf); - -/* Called from bas-gigaset.c to process a block of data - * received through the isochronous channel */ -void gigaset_isoc_receive(unsigned char *src, unsigned count, - struct bc_state *bcs); - -/* Called from bas-gigaset.c to put a block of data - * into the isochronous output buffer */ -int gigaset_isoc_buildframe(struct bc_state *bcs, unsigned char *in, int len); - -/* Called from bas-gigaset.c to initialize the isochronous output buffer */ -void gigaset_isowbuf_init(struct isowbuf_t *iwb, unsigned char idle); - -/* Called from bas-gigaset.c to retrieve a block of bytes for sending */ -int gigaset_isowbuf_getbytes(struct isowbuf_t *iwb, int size); - -/* =========================================================================== - * Functions implemented in LL interface - */ - -/* Called from common.c for setting up/shutting down with the ISDN subsystem */ -void gigaset_isdn_regdrv(void); -void gigaset_isdn_unregdrv(void); -int gigaset_isdn_regdev(struct cardstate *cs, const char *isdnid); -void gigaset_isdn_unregdev(struct cardstate *cs); - -/* Called from hardware module to indicate completion of an skb */ -void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *skb); -void gigaset_skb_rcvd(struct bc_state *bcs, struct sk_buff *skb); -void gigaset_isdn_rcv_err(struct bc_state *bcs); - -/* Called from common.c/ev-layer.c to indicate events relevant to the LL */ -void gigaset_isdn_start(struct cardstate *cs); -void gigaset_isdn_stop(struct cardstate *cs); -int gigaset_isdn_icall(struct at_state_t *at_state); -void gigaset_isdn_connD(struct bc_state *bcs); -void gigaset_isdn_hupD(struct bc_state *bcs); -void gigaset_isdn_connB(struct bc_state *bcs); -void gigaset_isdn_hupB(struct bc_state *bcs); - -/* =========================================================================== - * Functions implemented in ev-layer.c - */ - -/* tasklet called from common.c to process queued events */ -void gigaset_handle_event(unsigned long data); - -/* called from isocdata.c / asyncdata.c - * when a complete modem response line has been received */ -void gigaset_handle_modem_response(struct cardstate *cs); - -/* =========================================================================== - * Functions implemented in proc.c - */ - -/* initialize sysfs for device */ -void gigaset_init_dev_sysfs(struct cardstate *cs); -void gigaset_free_dev_sysfs(struct cardstate *cs); - -/* =========================================================================== - * Functions implemented in common.c/gigaset.h - */ - -void gigaset_bcs_reinit(struct bc_state *bcs); -void gigaset_at_init(struct at_state_t *at_state, struct bc_state *bcs, - struct cardstate *cs, int cid); -int gigaset_get_channel(struct bc_state *bcs); -struct bc_state *gigaset_get_free_channel(struct cardstate *cs); -void gigaset_free_channel(struct bc_state *bcs); -int gigaset_get_channels(struct cardstate *cs); -void gigaset_free_channels(struct cardstate *cs); -void gigaset_block_channels(struct cardstate *cs); - -/* Allocate and initialize driver structure. */ -struct gigaset_driver *gigaset_initdriver(unsigned minor, unsigned minors, - const char *procname, - const char *devname, - const struct gigaset_ops *ops, - struct module *owner); - -/* Deallocate driver structure. */ -void gigaset_freedriver(struct gigaset_driver *drv); - -struct cardstate *gigaset_get_cs_by_tty(struct tty_struct *tty); -struct cardstate *gigaset_get_cs_by_id(int id); -void gigaset_blockdriver(struct gigaset_driver *drv); - -/* Allocate and initialize card state. Calls hardware dependent - gigaset_init[b]cs(). */ -struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels, - int onechannel, int ignoreframes, - int cidmode, const char *modulename); - -/* Free card state. Calls hardware dependent gigaset_free[b]cs(). */ -void gigaset_freecs(struct cardstate *cs); - -/* Tell common.c that hardware and driver are ready. */ -int gigaset_start(struct cardstate *cs); - -/* Tell common.c that the device is not present any more. */ -void gigaset_stop(struct cardstate *cs); - -/* Tell common.c that the driver is being unloaded. */ -int gigaset_shutdown(struct cardstate *cs); - -/* Append event to the queue. - * Returns NULL on failure or a pointer to the event on success. - * ptr must be kmalloc()ed (and not be freed by the caller). - */ -struct event_t *gigaset_add_event(struct cardstate *cs, - struct at_state_t *at_state, int type, - void *ptr, int parameter, void *arg); - -/* Called on CONFIG1 command from frontend. */ -int gigaset_enterconfigmode(struct cardstate *cs); - -/* cs->lock must not be locked */ -static inline void gigaset_schedule_event(struct cardstate *cs) -{ - unsigned long flags; - spin_lock_irqsave(&cs->lock, flags); - if (cs->running) - tasklet_schedule(&cs->event_tasklet); - spin_unlock_irqrestore(&cs->lock, flags); -} - -/* Tell common.c that B channel has been closed. */ -/* cs->lock must not be locked */ -static inline void gigaset_bchannel_down(struct bc_state *bcs) -{ - gigaset_add_event(bcs->cs, &bcs->at_state, EV_BC_CLOSED, NULL, 0, NULL); - gigaset_schedule_event(bcs->cs); -} - -/* Tell common.c that B channel has been opened. */ -/* cs->lock must not be locked */ -static inline void gigaset_bchannel_up(struct bc_state *bcs) -{ - gigaset_add_event(bcs->cs, &bcs->at_state, EV_BC_OPEN, NULL, 0, NULL); - gigaset_schedule_event(bcs->cs); -} - -/* set up next receive skb for data mode */ -static inline struct sk_buff *gigaset_new_rx_skb(struct bc_state *bcs) -{ - struct cardstate *cs = bcs->cs; - unsigned short hw_hdr_len = cs->hw_hdr_len; - - if (bcs->ignore) { - bcs->rx_skb = NULL; - } else { - bcs->rx_skb = dev_alloc_skb(bcs->rx_bufsize + hw_hdr_len); - if (bcs->rx_skb == NULL) - dev_warn(cs->dev, "could not allocate skb\n"); - else - skb_reserve(bcs->rx_skb, hw_hdr_len); - } - return bcs->rx_skb; -} - -/* append received bytes to inbuf */ -int gigaset_fill_inbuf(struct inbuf_t *inbuf, const unsigned char *src, - unsigned numbytes); - -/* =========================================================================== - * Functions implemented in interface.c - */ - -/* initialize interface */ -void gigaset_if_initdriver(struct gigaset_driver *drv, const char *procname, - const char *devname); -/* release interface */ -void gigaset_if_freedriver(struct gigaset_driver *drv); -/* add minor */ -void gigaset_if_init(struct cardstate *cs); -/* remove minor */ -void gigaset_if_free(struct cardstate *cs); -/* device received data */ -void gigaset_if_receive(struct cardstate *cs, - unsigned char *buffer, size_t len); - -#endif |