diff options
Diffstat (limited to 'drivers/isdn/hardware/eicon/istream.c')
| -rw-r--r-- | drivers/isdn/hardware/eicon/istream.c | 352 |
1 files changed, 176 insertions, 176 deletions
diff --git a/drivers/isdn/hardware/eicon/istream.c b/drivers/isdn/hardware/eicon/istream.c index 7bd5baa547be..045bda5c839f 100644 --- a/drivers/isdn/hardware/eicon/istream.c +++ b/drivers/isdn/hardware/eicon/istream.c @@ -1,26 +1,26 @@ /* * - Copyright (c) Eicon Networks, 2002. + Copyright (c) Eicon Networks, 2002. * - This source file is supplied for the use with - Eicon Networks range of DIVA Server Adapters. + This source file is supplied for the use with + Eicon Networks range of DIVA Server Adapters. * - Eicon File Revision : 2.1 + Eicon File Revision : 2.1 * - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. * - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING ANY - implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - See the GNU General Public License for more details. + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING ANY + implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + See the GNU General Public License for more details. * - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * */ #include "platform.h" @@ -31,196 +31,196 @@ #include "divasync.h" #include "di.h" #if !defined USE_EXTENDED_DEBUGS - #include "dimaint.h" +#include "dimaint.h" #else - #define dprintf +#define dprintf #endif #include "dfifo.h" -int diva_istream_write (void* context, - int Id, - void* data, - int length, - int final, - byte usr1, - byte usr2); -int diva_istream_read (void* context, - int Id, - void* data, - int max_length, - int* final, - byte* usr1, - byte* usr2); +int diva_istream_write(void *context, + int Id, + void *data, + int length, + int final, + byte usr1, + byte usr2); +int diva_istream_read(void *context, + int Id, + void *data, + int max_length, + int *final, + byte *usr1, + byte *usr2); /* ------------------------------------------------------------------- - Does provide iStream interface to the client + Does provide iStream interface to the client ------------------------------------------------------------------- */ -void diva_xdi_provide_istream_info (ADAPTER* a, - diva_xdi_stream_interface_t* pi) { - pi->provided_service = 0; +void diva_xdi_provide_istream_info(ADAPTER *a, + diva_xdi_stream_interface_t *pi) { + pi->provided_service = 0; } /* ------------------------------------------------------------------ - Does write the data from caller's buffer to the card's - stream interface. - If synchronous service was requested, then function - does return amount of data written to stream. - 'final' does indicate that piece of data to be written is - final part of frame (necessary only by structured datatransfer) - return 0 if zero lengh packet was written - return -1 if stream is full - ------------------------------------------------------------------ */ -int diva_istream_write (void* context, - int Id, - void* data, - int length, - int final, - byte usr1, - byte usr2) { - ADAPTER* a = (ADAPTER*)context; - int written = 0, to_write = -1; - char tmp[4]; - byte* data_ptr = (byte*)data; - for (;;) { - a->ram_in_dw (a, + Does write the data from caller's buffer to the card's + stream interface. + If synchronous service was requested, then function + does return amount of data written to stream. + 'final' does indicate that piece of data to be written is + final part of frame (necessary only by structured datatransfer) + return 0 if zero lengh packet was written + return -1 if stream is full + ------------------------------------------------------------------ */ +int diva_istream_write(void *context, + int Id, + void *data, + int length, + int final, + byte usr1, + byte usr2) { + ADAPTER *a = (ADAPTER *)context; + int written = 0, to_write = -1; + char tmp[4]; + byte *data_ptr = (byte *)data; + for (;;) { + a->ram_in_dw(a, #ifdef PLATFORM_GT_32BIT - ULongToPtr(a->tx_stream[Id] + a->tx_pos[Id]), + ULongToPtr(a->tx_stream[Id] + a->tx_pos[Id]), #else - (void*)(a->tx_stream[Id] + a->tx_pos[Id]), + (void *)(a->tx_stream[Id] + a->tx_pos[Id]), #endif - (dword*)&tmp[0], - 1); - if (tmp[0] & DIVA_DFIFO_READY) { /* No free blocks more */ - if (to_write < 0) - return (-1); /* was not able to write */ - break; /* only part of message was written */ - } - to_write = min(length, DIVA_DFIFO_DATA_SZ); - if (to_write) { - a->ram_out_buffer (a, + (dword *)&tmp[0], + 1); + if (tmp[0] & DIVA_DFIFO_READY) { /* No free blocks more */ + if (to_write < 0) + return (-1); /* was not able to write */ + break; /* only part of message was written */ + } + to_write = min(length, DIVA_DFIFO_DATA_SZ); + if (to_write) { + a->ram_out_buffer(a, #ifdef PLATFORM_GT_32BIT - ULongToPtr(a->tx_stream[Id] + a->tx_pos[Id]+4), + ULongToPtr(a->tx_stream[Id] + a->tx_pos[Id] + 4), #else - (void*)(a->tx_stream[Id] + a->tx_pos[Id] + 4), + (void *)(a->tx_stream[Id] + a->tx_pos[Id] + 4), #endif - data_ptr, - (word)to_write); - length -= to_write; - written += to_write; - data_ptr += to_write; - } - tmp[1] = (char)to_write; - tmp[0] = (tmp[0] & DIVA_DFIFO_WRAP) | - DIVA_DFIFO_READY | - ((!length && final) ? DIVA_DFIFO_LAST : 0); - if (tmp[0] & DIVA_DFIFO_LAST) { - tmp[2] = usr1; - tmp[3] = usr2; - } - a->ram_out_dw (a, + data_ptr, + (word)to_write); + length -= to_write; + written += to_write; + data_ptr += to_write; + } + tmp[1] = (char)to_write; + tmp[0] = (tmp[0] & DIVA_DFIFO_WRAP) | + DIVA_DFIFO_READY | + ((!length && final) ? DIVA_DFIFO_LAST : 0); + if (tmp[0] & DIVA_DFIFO_LAST) { + tmp[2] = usr1; + tmp[3] = usr2; + } + a->ram_out_dw(a, #ifdef PLATFORM_GT_32BIT - ULongToPtr(a->tx_stream[Id] + a->tx_pos[Id]), + ULongToPtr(a->tx_stream[Id] + a->tx_pos[Id]), #else - (void*)(a->tx_stream[Id] + a->tx_pos[Id]), + (void *)(a->tx_stream[Id] + a->tx_pos[Id]), #endif - (dword*)&tmp[0], - 1); - if (tmp[0] & DIVA_DFIFO_WRAP) { - a->tx_pos[Id] = 0; - } else { - a->tx_pos[Id] += DIVA_DFIFO_STEP; - } - if (!length) { - break; - } - } - return (written); + (dword *)&tmp[0], + 1); + if (tmp[0] & DIVA_DFIFO_WRAP) { + a->tx_pos[Id] = 0; + } else { + a->tx_pos[Id] += DIVA_DFIFO_STEP; + } + if (!length) { + break; + } + } + return (written); } /* ------------------------------------------------------------------- - In case of SYNCRONOUS service: - Does write data from stream in caller's buffer. - Does return amount of data written to buffer - Final flag is set on return if last part of structured frame - was received - return 0 if zero packet was received - return -1 if stream is empty - return -2 if read buffer does not profide sufficient space - to accommodate entire segment - max_length should be at least 68 bytes - ------------------------------------------------------------------- */ -int diva_istream_read (void* context, - int Id, - void* data, - int max_length, - int* final, - byte* usr1, - byte* usr2) { - ADAPTER* a = (ADAPTER*)context; - int read = 0, to_read = -1; - char tmp[4]; - byte* data_ptr = (byte*)data; - *final = 0; - for (;;) { - a->ram_in_dw (a, + In case of SYNCRONOUS service: + Does write data from stream in caller's buffer. + Does return amount of data written to buffer + Final flag is set on return if last part of structured frame + was received + return 0 if zero packet was received + return -1 if stream is empty + return -2 if read buffer does not profide sufficient space + to accommodate entire segment + max_length should be at least 68 bytes + ------------------------------------------------------------------- */ +int diva_istream_read(void *context, + int Id, + void *data, + int max_length, + int *final, + byte *usr1, + byte *usr2) { + ADAPTER *a = (ADAPTER *)context; + int read = 0, to_read = -1; + char tmp[4]; + byte *data_ptr = (byte *)data; + *final = 0; + for (;;) { + a->ram_in_dw(a, #ifdef PLATFORM_GT_32BIT - ULongToPtr(a->rx_stream[Id] + a->rx_pos[Id]), + ULongToPtr(a->rx_stream[Id] + a->rx_pos[Id]), #else - (void*)(a->rx_stream[Id] + a->rx_pos[Id]), + (void *)(a->rx_stream[Id] + a->rx_pos[Id]), #endif - (dword*)&tmp[0], - 1); - if (tmp[1] > max_length) { - if (to_read < 0) - return (-2); /* was not able to read */ - break; - } - if (!(tmp[0] & DIVA_DFIFO_READY)) { - if (to_read < 0) - return (-1); /* was not able to read */ - break; - } - to_read = min(max_length, (int)tmp[1]); - if (to_read) { - a->ram_in_buffer(a, + (dword *)&tmp[0], + 1); + if (tmp[1] > max_length) { + if (to_read < 0) + return (-2); /* was not able to read */ + break; + } + if (!(tmp[0] & DIVA_DFIFO_READY)) { + if (to_read < 0) + return (-1); /* was not able to read */ + break; + } + to_read = min(max_length, (int)tmp[1]); + if (to_read) { + a->ram_in_buffer(a, #ifdef PLATFORM_GT_32BIT - ULongToPtr(a->rx_stream[Id] + a->rx_pos[Id] + 4), + ULongToPtr(a->rx_stream[Id] + a->rx_pos[Id] + 4), #else - (void*)(a->rx_stream[Id] + a->rx_pos[Id] + 4), + (void *)(a->rx_stream[Id] + a->rx_pos[Id] + 4), #endif - data_ptr, - (word)to_read); - max_length -= to_read; - read += to_read; - data_ptr += to_read; - } - if (tmp[0] & DIVA_DFIFO_LAST) { - *final = 1; - } - tmp[0] &= DIVA_DFIFO_WRAP; - a->ram_out_dw(a, + data_ptr, + (word)to_read); + max_length -= to_read; + read += to_read; + data_ptr += to_read; + } + if (tmp[0] & DIVA_DFIFO_LAST) { + *final = 1; + } + tmp[0] &= DIVA_DFIFO_WRAP; + a->ram_out_dw(a, #ifdef PLATFORM_GT_32BIT - ULongToPtr(a->rx_stream[Id] + a->rx_pos[Id]), + ULongToPtr(a->rx_stream[Id] + a->rx_pos[Id]), #else - (void*)(a->rx_stream[Id] + a->rx_pos[Id]), + (void *)(a->rx_stream[Id] + a->rx_pos[Id]), #endif - (dword*)&tmp[0], - 1); - if (tmp[0] & DIVA_DFIFO_WRAP) { - a->rx_pos[Id] = 0; - } else { - a->rx_pos[Id] += DIVA_DFIFO_STEP; - } - if (*final) { - if (usr1) - *usr1 = tmp[2]; - if (usr2) - *usr2 = tmp[3]; - break; - } - } - return (read); + (dword *)&tmp[0], + 1); + if (tmp[0] & DIVA_DFIFO_WRAP) { + a->rx_pos[Id] = 0; + } else { + a->rx_pos[Id] += DIVA_DFIFO_STEP; + } + if (*final) { + if (usr1) + *usr1 = tmp[2]; + if (usr2) + *usr2 = tmp[3]; + break; + } + } + return (read); } /* --------------------------------------------------------------------- - Does check if one of streams had caused interrupt and does - wake up corresponding application + Does check if one of streams had caused interrupt and does + wake up corresponding application --------------------------------------------------------------------- */ -void pr_stream (ADAPTER * a) { +void pr_stream(ADAPTER *a) { } #endif /* } */ |