DigiWARE Release Notes for Digi Asynchronous Driver version 1.3.6 (Beta-6) February 5, 1999 Digi Xi, Xe, Xr, Xem, C/X, COM/Xi Linux operating systems 1.2.x, 2.0.x, 2.2.x Software Package P/N 75000250E4P Diskette (3.5") P/N 40001450E4P Release Notes P/N 93000239E4P 1. Enhancements: epca.c: 1. Implemented kernel module support. Now the driver can be run as a module and managed via modutils (e.g: modprobe, rmmod, lsmod). 2. Converted from old to new style (introduced in later 2.1 and 2.2 kernels) PCI recognition and configuration routines. Old PCI code is ifdef'd for pre-2.1 kernels. 3. Added PCI 2r-920 support. 4. Added support for the CX adapter series (ISA, EISA and PCI). Note, a separate program cxconf is provided to support user specification of the concentrator topology to /etc/digi/cxconf.dat. 5. Added a new ioctl: DIGI_DISABLE, to disable a given card, so digiDload can disable a card before trying to initialize it. Without this, a second call to digiDload could make the driver think that a previously initialized CX is calling for another download image. 6. Patches from Dan Taylor to: a. Fix schedule_timeout for 2.2 kernels b. Add "digiepca=Override" to allow boottime "digiepca=2" overriding of epcaconfig.h values 7. Changed epca.c version to 1.3.6(Beta-6) digiDload: 1. Added CX initialization. 2. Added PCI 2R-290 support. 3. Add support for multiple CX concentrator topologies via "cxconf" and "/etc/digi/cxconf.dat" 4. Added report_numports() and call to it following DIGI_INIT calls to report "numports" for each card. This is necessary because these values cannot be read from PCI cards until then. 5. Changed version to V1.3.11 cxconf.c: 1. New program to query the user about CX concentrator topology and write the magic configuration string to /etc/digi/cxconf.dat digiInstall, digiUpdate: updated NOTE: For this release, the concentrator download file, /etc/digi/cxcon.bin, is converted to C source (/etc/digi/cxcon.c) via bin2c.sh and compiled into epca.c as the cxconc[] array. A subsequent version will implement ioctls and modify digiDload so that the latter can pass this array to epca, if and only if needed, at runtime. 2. Bug fixes: epca.c 1. Added simple-minded card check code in post_fep_init(). Previously if an ISA card was specified (e.g: via digiConfig) but not installed, the driver would still try to initialize the card and typically generate errors with every call to fepcmd(). Now, if the simple card check fails, we mark the card the card as DISABLED and continue. 2. Removed unnecessary call to console_print(). 3. It's possible for a process to abort without properly cleaning up after itself. When running the driver as a module, this may make it look like the driver is busy and prevent unloading. Setting the count to 0 on init should allow digiDload (or similar) to clear this condition. digiDload: 1. Removed -D__KERNEL__ from Makefile -- unnecessary and it caused compile failures with 2.1.x kernels. 2. Added init() time call to memoff() to turn off card memory on non-PCI cards to avoid conflicts with shared memory addresses. Now multiple ISA adapters can share memory addresses. 3. Add call to DIGI_DISABLE before initializing cards. Otherwise, subsequent calls to digiDload fail with CX cards since download requests from the card are misinterpreted. 3. Technical support is available directly from Digi International: Tel, (612) 912-3456 E-mail: digiLnux@dgii.com. FTP: ftp://ftp.dgii.com WWW: http://www.dgii.com 4. Source code and executables are available through various Internet sites, as well as the Digi web page. Diskettes may be ordered by contacting the support number given above. ---------------------------------------------------------------------------- DigiWARE Release Notes for Digi Asynchronous Driver version 1.3.4 (Beta-2) December 12, 1998 Digi Xi, Xe, Xr, Xem, COM/Xi Linux operating systems 1.2.x, 2.0.x and 2.1.x Software Package P/N 75000250E3P Diskette (3.5") P/N 40001450E3P Release Notes P/N 93000239E3P 1. Enhancements: 2. Bug fixes: Installation/update instructions (doc/install.doc): Replaced outdated installation text with Ben Tucker's updated version. Driver (drv/epca.c): 1. Fixed a problem in post_fep_init() that caused subsequent accesses to the board (e.g: after enabling polling) to crash the driver if no ports were found at boot time. This situation could arise, for example: on a PCI Xem if the PORTS module is disconnected. Now we just mark the board as DISABLED and continue. 2. Changed epca.c version to 1.3.4(Beta-2) 3. Technical support is available directly from Digi International: Tel, (612) 912-3456 E-mail: digiLnux@dgii.com. FTP: ftp://ftp.dgii.com WWW: http://www.dgii.com 4. Source code and executables are available through various Internet sites, as well as the Digi web page. Diskettes may be ordered by contacting the support number given above. ---------------------------------------------------------------------------- DigiWARE Release Notes for Digi Asynchronous Driver version 1.3.4 (Beta) November 5, 1998 Digi Xi, Xe, Xr, Xem, COM/Xi Linux operating systems 1.2.x, 2.0.x and 2.1.x Software Package P/N 75000250E2P Diskette (3.5") P/N 40001450E2P Release Notes P/N 93000239E2P 1. Enhancements: 2. Bug fixes: Driver (drv/epca.c): -- Fixed a problem in pc_open() where the port was being reinitialized with every open. The problem with this is that data could be lost if one process had a port open for reading/writing and another process came along and opened the port, for example: to check its status. -- Changed version to 1.3.4(Beta) Card initialization (dl/digiDload.c): -- Added code (ifdef'd to PCIBUG) to circumvent a problem with some PCI chipsets. -- Fixed a bug that kept multiple ISA cards from initializing. -- Previous versions would quit on any error. In a multiple adapter setup a failure to initialize a prior board would also keep subsequent boards from being initialized. This version displays error messages as appropriate, but then continues trying to initialize any subsequent boards. -- Changed makefile to link digiDload using the static option so it will run even on platforms with incompatible libraries. -- Fixed include file references that prevented compiling digiDload against newer Linux source trees. -- Added messages to display the adapter type and number of ports as they are initialized. This is especially useful in the event that some adapters succeed while others fail to initialize. -- Changed version to 1.3.6 FEP and BIOS files: -- Updated the SX and XR FEP and BIN to the latest: v2.3.11. This fixes a number of initialization problems, especially with some variants of the ISA Xem. digiInstall, digiUpdate, digiConfig: -- Updated 3. Technical support is available directly from Digi International: Tel, (612) 912-3456 E-mail: digiLnux@dgii.com. FTP: ftp://ftp.dgii.com WWW: http://www.dgii.com 4. Source code and executables are available through various Internet sites, as well as the Digi web page. Diskettes may be ordered by contacting the support number given above. ---------------------------------------------------------------------------- DigiWARE Release Notes for Digi Asynchronous Driver version 1.3.3 (Beta) March 22, 1998 Digi Xi, Xe, Xr, Xem, COM/Xi Linux operating systems 1.2.x, 2.0.x and 2.1.x Software Package P/N 75000250E (Beta) Diskette (3.5") P/N 40001450E (Beta) Release Notes P/N 93000239E (Beta) 1. Enhancements: -- Simplified the digiInstall patchfiles by changing digiInstall to use "cp" for new files, reserving "patch" only for existing files that require modification. -- Added code to distinguish various members of the PCI/Xr family during digiDload notification. 2. Bug fixes: -- Fixed a problem in epcaparam() that caused characters to be lost under some conditions. -- Fixed problem with handling "break" on input. Previously, the break condition was inappropriately persistent. -- Fixed extended baud rate communication problem where baud rates were remapped even if "fastbaud" was set. -- Removed references to DIGI_TIMER2 and DIGI_BH2. -- Fixed a problem with DCD handling where multiple CD line drops would crash 2.1.x kernels -- Fixed init_PCI() so it will recognize multiple PCI boards of the same type. 3. Technical support may be obtained by contacting Digi Tech support at (612) 912-3456 or by emailing digiLnux@dgii.com. 4. Source code and executables are available through various internet sites, as well as the Digi web page. Diskettes may be ordered by contacting the support number given above. ---------------------------------------------------------------------------- DigiWARE Release Notes for Digi Asynchronous Driver version 1.3.2 February 2, 98 Digi Xi, Xe, Xr, Xem, COM/Xi Linux operating systems 1.2.x, 2.0.x and 2.1.x Software Package P/N 75000250D Diskette (3.5") P/N 40001450D Release Notes P/N 93000239D 1. Enhancements: -- Added support for the PC and PCI Xr920 cards including adding support for 460800 and 921600 baud rate settings. -- Updated on-board operating system files (*bios.bin, *fep.bin). NOTE ON HIGH BAUD RATE SETTINGS: Current Linux kernels (e.g: 2.0.33 and 2.1.79) limit the maximum theoretical input rate to 25600 bytes/second per port. See changes.doc for a patch to the kernel scheduler that raises this theoretical limit to 51200 bytes/second. Actual maximum driver throughput with this patch is currently around 41000 bytes/second. Output rates are independent of this limit. 2. Bug fixes: -- Fixed broken "fastbaud" communication between ditty and driver (ditty.c and epca.c). -- Fixed timer calls -- Fixed a problem in pc_flush_buffer 3. Technical support may be obtained by contacting Digi Tech support at (612) 912-3456 or by emailing digiLnux@dgii.com. 4. Source code and executables are available through various internet sites, as well as the Digi web page. Diskettes may be ordered by contacting the support number given above. ---------------------------------------------------------------------------- DigiWARE Release Notes for Digi Asynchronous Driver version 1.3.0 October 14, 97 Digi Xi, Xe, Xr, Xem, COM/Xi Linux operating systems 1.2.x, 2.0.x and 2.1.x Software Package P/N 75000250C Diskette (3.5") P/N 40001450C Release Notes P/N 93000239C 1. Enhancements: - Added digiUpdate, a companion program to digiInstall which knows how to update an existing epca installation. digiInstall depends on a more or less pristine Linux source tree and applies patchfiles as necessary, but it aborts if it finds that a version of the epca driver has already been installed. digiUpdate simply freshens epca files as needed to update from a previous version (e.g: from V1.1.0 to V1.3.0). 2. Bug fixes: - Fixed two problems associated with sensing DCD (carrier detect) modem signal drops: a. On receiving a loss of carrier detect on a modem signal enabled line (-clocal), the V1.1.0 driver schedules a later call to itself to invoke tty_hangup() -- the routine that logs out the user and cleans up. This is an elegant way to handle this situation. However, it appears that there's a problem with the event scheduler code, so we now just call tty_hangup() directly on sensing this condition. b. The V1.1.0 driver is set up to handle events from the Digiboard one at a time. Specifically, it expects modem signal events to always occur separately from data events. However, it is possible for data and modem events to occur together -- logically OR'd up as one single compound event. With the V1.1.0 driver, when this occurs, the modem change event is ignored. The V1.3.0 driver handles both events. 3. Technical support may be obtained by contacting Digi Tech support at (612) 912-3456 or by emailing digiLnux@dgii.com. 4. Source code and executables are available through various internet sites, as well as the Digi web page. Diskettes may be ordered by contacting the support number given above. ---------------------------------------------------------------------------- DigiWARE Release Notes for Digi Asynchronous Driver version 1.1.0 2/17/97 1. Enhancements: - The behavior of cud and ttyD devices has been changed (again). Now both cud and ttyD and default to CLOCAL. This may be easily changed via. the stty command. - digiConfig now checks major.h to determine the major numbers. This was done because of the recent switch in Digi major numbers seen in beta kernel 2.0.12. - The driver can now be configured via. LILO boot command. See the user.doc for details. - The driver now supports the older 64K PC/Xi and PC/Xe cards. - The driver now can be instructed to ignore cards declared in epcaconfig.h and still boot cards that are not declared (Such as PCI). - Improved the support of loadable modules. In particular made changes that allow the driver to better clean up after itself if it is removed. - Nodes corresponding to Digi devices now start at 0 not 1. 2. Bug fixes: - A bug in epca.c involving hard flow control and CRTSCTS was fixed. - Many bugs in ditty.c were fixed. - A bug that prevented some gettys programs from operating with ~CLOCAL devices was corrected. - A bug that caused the driver to 'forget' the status of CLOCAL. - A bug that caused parity to be enabled when high baud rates are in use. - A bug that sometimes caused memory overwrites on PC/Xe cards. - A bug in epca.c was fixed that sometimes caused an erroneous error message warning that PCI has returned an invalid number of ports. - A bug was fixed that prevented the new Saturn PCI cards (Xr, and Xem) from properly booting.