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cyclades: overall cleanup
- remove changelog from the file. we don't care about ancient history - update copyright year - update version - constify some stuff - empty lines removal - unused variables and macros removal - remove some asm/ includes, they are sucked by linux/ variants Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jiri Slaby
Live-CD User
parent
2334226296
commit
ebdb513596
@ -11,7 +11,7 @@
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* Initially written by Randolph Bentson <bentson@grieg.seaslug.org>.
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* Modified and maintained by Marcio Saito <marcio@cyclades.com>.
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*
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* Copyright (C) 2007 Jiri Slaby <jirislaby@gmail.com>
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* Copyright (C) 2007-2009 Jiri Slaby <jirislaby@gmail.com>
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*
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* Much of the design and some of the code came from serial.c
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* which was copyright (C) 1991, 1992 Linus Torvalds. It was
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@ -19,577 +19,9 @@
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* and then fixed as suggested by Michael K. Johnson 12/12/92.
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* Converted to pci probing and cleaned up by Jiri Slaby.
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*
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* This version supports shared IRQ's (only for PCI boards).
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*
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* Prevent users from opening non-existing Z ports.
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*
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* Revision 2.3.2.8 2000/07/06 18:14:16 ivan
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* Fixed the PCI detection function to work properly on Alpha systems.
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* Implemented support for TIOCSERGETLSR ioctl.
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* Implemented full support for non-standard baud rates.
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*
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* Revision 2.3.2.7 2000/06/01 18:26:34 ivan
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* Request PLX I/O region, although driver doesn't use it, to avoid
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* problems with other drivers accessing it.
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* Removed count for on-board buffer characters in cy_chars_in_buffer
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* (Cyclades-Z only).
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*
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* Revision 2.3.2.6 2000/05/05 13:56:05 ivan
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* Driver now reports physical instead of virtual memory addresses.
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* Masks were added to some Cyclades-Z read accesses.
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* Implemented workaround for PLX9050 bug that would cause a system lockup
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* in certain systems, depending on the MMIO addresses allocated to the
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* board.
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* Changed the Tx interrupt programming in the CD1400 chips to boost up
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* performance (Cyclom-Y only).
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* Code is now compliant with the new module interface (module_[init|exit]).
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* Make use of the PCI helper functions to access PCI resources.
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* Did some code "housekeeping".
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*
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* Revision 2.3.2.5 2000/01/19 14:35:33 ivan
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* Fixed bug in cy_set_termios on CRTSCTS flag turnoff.
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*
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* Revision 2.3.2.4 2000/01/17 09:19:40 ivan
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* Fixed SMP locking in Cyclom-Y interrupt handler.
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*
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* Revision 2.3.2.3 1999/12/28 12:11:39 ivan
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* Added a new cyclades_card field called nports to allow the driver to
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* know the exact number of ports found by the Z firmware after its load;
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* RX buffer contention prevention logic on interrupt op mode revisited
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* (Cyclades-Z only);
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* Revisited printk's for Z debug;
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* Driver now makes sure that the constant SERIAL_XMIT_SIZE is defined;
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*
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* Revision 2.3.2.2 1999/10/01 11:27:43 ivan
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* Fixed bug in cyz_poll that would make all ports but port 0
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* unable to transmit/receive data (Cyclades-Z only);
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* Implemented logic to prevent the RX buffer from being stuck with data
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* due to a driver / firmware race condition in interrupt op mode
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* (Cyclades-Z only);
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* Fixed bug in block_til_ready logic that would lead to a system crash;
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* Revisited cy_close spinlock usage;
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*
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* Revision 2.3.2.1 1999/09/28 11:01:22 ivan
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* Revisited CONFIG_PCI conditional compilation for PCI board support;
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* Implemented TIOCGICOUNT and TIOCMIWAIT ioctl support;
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* _Major_ cleanup on the Cyclades-Z interrupt support code / logic;
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* Removed CTS handling from the driver -- this is now completely handled
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* by the firmware (Cyclades-Z only);
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* Flush RX on-board buffers on a port open (Cyclades-Z only);
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* Fixed handling of ASYNC_SPD_* TTY flags;
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* Module unload now unmaps all memory area allocated by ioremap;
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*
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* Revision 2.3.1.1 1999/07/15 16:45:53 ivan
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* Removed CY_PROC conditional compilation;
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* Implemented SMP-awareness for the driver;
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* Implemented a new ISA IRQ autoprobe that uses the irq_probe_[on|off]
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* functions;
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* The driver now accepts memory addresses (maddr=0xMMMMM) and IRQs
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* (irq=NN) as parameters (only for ISA boards);
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* Fixed bug in set_line_char that would prevent the Cyclades-Z
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* ports from being configured at speeds above 115.2Kbps;
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* Fixed bug in cy_set_termios that would prevent XON/XOFF flow control
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* switching from working properly;
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* The driver now only prints IRQ info for the Cyclades-Z if it's
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* configured to work in interrupt mode;
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*
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* Revision 2.2.2.3 1999/06/28 11:13:29 ivan
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* Added support for interrupt mode operation for the Z cards;
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* Removed the driver inactivity control for the Z;
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* Added a missing MOD_DEC_USE_COUNT in the cy_open function for when
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* the Z firmware is not loaded yet;
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* Replaced the "manual" Z Tx flush buffer by a call to a FW command of
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* same functionality;
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* Implemented workaround for IRQ setting loss on the PCI configuration
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* registers after a PCI bridge EEPROM reload (affects PLX9060 only);
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*
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* Revision 2.2.2.2 1999/05/14 17:18:15 ivan
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* /proc entry location changed to /proc/tty/driver/cyclades;
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* Added support to shared IRQ's (only for PCI boards);
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* Added support for Cobalt Qube2 systems;
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* IRQ [de]allocation scheme revisited;
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* BREAK implementation changed in order to make use of the 'break_ctl'
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* TTY facility;
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* Fixed typo in TTY structure field 'driver_name';
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* Included a PCI bridge reset and EEPROM reload in the board
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* initialization code (for both Y and Z series).
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*
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* Revision 2.2.2.1 1999/04/08 16:17:43 ivan
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* Fixed a bug in cy_wait_until_sent that was preventing the port to be
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* closed properly after a SIGINT;
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* Module usage counter scheme revisited;
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* Added support to the upcoming Y PCI boards (i.e., support to additional
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* PCI Device ID's).
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*
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* Revision 2.2.1.10 1999/01/20 16:14:29 ivan
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* Removed all unnecessary page-alignement operations in ioremap calls
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* (ioremap is currently safe for these operations).
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*
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* Revision 2.2.1.9 1998/12/30 18:18:30 ivan
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* Changed access to PLX PCI bridge registers from I/O to MMIO, in
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* order to make PLX9050-based boards work with certain motherboards.
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*
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* Revision 2.2.1.8 1998/11/13 12:46:20 ivan
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* cy_close function now resets (correctly) the tty->closing flag;
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* JIFFIES_DIFF macro fixed.
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*
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* Revision 2.2.1.7 1998/09/03 12:07:28 ivan
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* Fixed bug in cy_close function, which was not informing HW of
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* which port should have the reception disabled before doing so;
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* fixed Cyclom-8YoP hardware detection bug.
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*
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* Revision 2.2.1.6 1998/08/20 17:15:39 ivan
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* Fixed bug in cy_close function, which causes malfunction
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* of one of the first 4 ports when a higher port is closed
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* (Cyclom-Y only).
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*
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* Revision 2.2.1.5 1998/08/10 18:10:28 ivan
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* Fixed Cyclom-4Yo hardware detection bug.
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*
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* Revision 2.2.1.4 1998/08/04 11:02:50 ivan
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* /proc/cyclades implementation with great collaboration of
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* Marc Lewis <marc@blarg.net>;
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* cyy_interrupt was changed to avoid occurrence of kernel oopses
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* during PPP operation.
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*
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* Revision 2.2.1.3 1998/06/01 12:09:10 ivan
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* General code review in order to comply with 2.1 kernel standards;
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* data loss prevention for slow devices revisited (cy_wait_until_sent
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* was created);
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* removed conditional compilation for new/old PCI structure support
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* (now the driver only supports the new PCI structure).
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*
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* Revision 2.2.1.1 1998/03/19 16:43:12 ivan
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* added conditional compilation for new/old PCI structure support;
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* removed kernel series (2.0.x / 2.1.x) conditional compilation.
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*
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* Revision 2.1.1.3 1998/03/16 18:01:12 ivan
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* cleaned up the data loss fix;
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* fixed XON/XOFF handling once more (Cyclades-Z);
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* general review of the driver routines;
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* introduction of a mechanism to prevent data loss with slow
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* printers, by forcing a delay before closing the port.
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*
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* Revision 2.1.1.2 1998/02/17 16:50:00 ivan
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* fixed detection/handling of new CD1400 in Ye boards;
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* fixed XON/XOFF handling (Cyclades-Z);
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* fixed data loss caused by a premature port close;
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* introduction of a flag that holds the CD1400 version ID per port
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* (used by the CYGETCD1400VER new ioctl).
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*
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* Revision 2.1.1.1 1997/12/03 17:31:19 ivan
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* Code review for the module cleanup routine;
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* fixed RTS and DTR status report for new CD1400's in get_modem_info;
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* includes anonymous changes regarding signal_pending.
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*
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* Revision 2.1 1997/11/01 17:42:41 ivan
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* Changes in the driver to support Alpha systems (except 8Zo V_1);
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* BREAK fix for the Cyclades-Z boards;
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* driver inactivity control by FW implemented;
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* introduction of flag that allows driver to take advantage of
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* a special CD1400 feature related to HW flow control;
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* added support for the CD1400 rev. J (Cyclom-Y boards);
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* introduction of ioctls to:
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* - control the rtsdtr_inv flag (Cyclom-Y);
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* - control the rflow flag (Cyclom-Y);
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* - adjust the polling interval (Cyclades-Z);
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*
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* Revision 1.36.4.33 1997/06/27 19:00:00 ivan
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* Fixes related to kernel version conditional
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* compilation.
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*
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* Revision 1.36.4.32 1997/06/14 19:30:00 ivan
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* Compatibility issues between kernels 2.0.x and
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* 2.1.x (mainly related to clear_bit function).
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*
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* Revision 1.36.4.31 1997/06/03 15:30:00 ivan
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* Changes to define the memory window according to the
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* board type.
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*
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* Revision 1.36.4.30 1997/05/16 15:30:00 daniel
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* Changes to support new cycladesZ boards.
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*
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* Revision 1.36.4.29 1997/05/12 11:30:00 daniel
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* Merge of Bentson's and Daniel's version 1.36.4.28.
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* Corrects bug in cy_detect_pci: check if there are more
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* ports than the number of static structs allocated.
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* Warning message during initialization if this driver is
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* used with the new generation of cycladesZ boards. Those
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* will be supported only in next release of the driver.
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* Corrects bug in cy_detect_pci and cy_detect_isa that
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* returned wrong number of VALID boards, when a cyclomY
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* was found with no serial modules connected.
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* Changes to use current (2.1.x) kernel subroutine names
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* and created macros for compilation with 2.0.x kernel,
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* instead of the other way around.
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*
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* Revision 1.36.4.28 1997/05/?? ??:00:00 bentson
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* Change queue_task_irq_off to queue_task_irq.
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* The inline function queue_task_irq_off (tqueue.h)
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* was removed from latest releases of 2.1.x kernel.
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* Use of macro __init to mark the initialization
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* routines, so memory can be reused.
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* Also incorporate implementation of critical region
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* in function cleanup_module() created by anonymous
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* linuxer.
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*
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* Revision 1.36.4.28 1997/04/25 16:00:00 daniel
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* Change to support new firmware that solves DCD problem:
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* application could fail to receive SIGHUP signal when DCD
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* varying too fast.
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*
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* Revision 1.36.4.27 1997/03/26 10:30:00 daniel
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* Changed for support linux versions 2.1.X.
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* Backward compatible with linux versions 2.0.X.
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* Corrected illegal use of filler field in
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* CH_CTRL struct.
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* Deleted some debug messages.
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*
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* Revision 1.36.4.26 1997/02/27 12:00:00 daniel
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* Included check for NULL tty pointer in cyz_poll.
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*
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* Revision 1.36.4.25 1997/02/26 16:28:30 bentson
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* Bill Foster at Blarg! Online services noticed that
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* some of the switch elements of -Z modem control
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* lacked a closing "break;"
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*
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* Revision 1.36.4.24 1997/02/24 11:00:00 daniel
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* Changed low water threshold for buffer xmit_buf
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*
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* Revision 1.36.4.23 1996/12/02 21:50:16 bentson
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* Marcio provided fix to modem status fetch for -Z
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*
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* Revision 1.36.4.22 1996/10/28 22:41:17 bentson
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* improve mapping of -Z control page (thanks to Steve
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* Price <stevep@fa.tdktca.com> for help on this)
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*
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* Revision 1.36.4.21 1996/09/10 17:00:10 bentson
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* shift from CPU-bound to memcopy in cyz_polling operation
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*
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* Revision 1.36.4.20 1996/09/09 18:30:32 Bentson
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* Added support to set and report higher speeds.
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*
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* Revision 1.36.4.19c 1996/08/09 10:00:00 Marcio Saito
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* Some fixes in the HW flow control for the BETA release.
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* Don't try to register the IRQ.
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*
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* Revision 1.36.4.19 1996/08/08 16:23:18 Bentson
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* make sure "cyc" appears in all kernel messages; all soft interrupts
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* handled by same routine; recognize out-of-band reception; comment
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* out some diagnostic messages; leave RTS/CTS flow control to hardware;
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* fix race condition in -Z buffer management; only -Y needs to explicitly
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* flush chars; tidy up some startup messages;
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*
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* Revision 1.36.4.18 1996/07/25 18:57:31 bentson
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* shift MOD_INC_USE_COUNT location to match
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* serial.c; purge some diagnostic messages;
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*
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* Revision 1.36.4.17 1996/07/25 18:01:08 bentson
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* enable modem status messages and fetch & process them; note
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* time of last activity type for each port; set_line_char now
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* supports more than line 0 and treats 0 baud correctly;
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* get_modem_info senses rs_status;
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*
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* Revision 1.36.4.16 1996/07/20 08:43:15 bentson
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* barely works--now's time to turn on
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* more features 'til it breaks
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*
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* Revision 1.36.4.15 1996/07/19 22:30:06 bentson
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* check more -Z board status; shorten boot message
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*
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* Revision 1.36.4.14 1996/07/19 22:20:37 bentson
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* fix reference to ch_ctrl in startup; verify return
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* values from cyz_issue_cmd and cyz_update_channel;
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* more stuff to get modem control correct;
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*
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* Revision 1.36.4.13 1996/07/11 19:53:33 bentson
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* more -Z stuff folded in; re-order changes to put -Z stuff
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* after -Y stuff (to make changes clearer)
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*
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* Revision 1.36.4.12 1996/07/11 15:40:55 bentson
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* Add code to poll Cyclades-Z. Add code to get & set RS-232 control.
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* Add code to send break. Clear firmware ID word at startup (so
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* that other code won't talk to inactive board).
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*
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* Revision 1.36.4.11 1996/07/09 05:28:29 bentson
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* add code for -Z in set_line_char
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*
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* Revision 1.36.4.10 1996/07/08 19:28:37 bentson
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* fold more -Z stuff (or in some cases, error messages)
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* into driver; add text to "don't know what to do" messages.
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*
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* Revision 1.36.4.9 1996/07/08 18:38:38 bentson
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* moved compile-time flags near top of file; cosmetic changes
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* to narrow text (to allow 2-up printing); changed many declarations
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* to "static" to limit external symbols; shuffled code order to
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* coalesce -Y and -Z specific code, also to put internal functions
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* in order of tty_driver structure; added code to recognize -Z
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* ports (and for moment, do nothing or report error); add cy_startup
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* to parse boot command line for extra base addresses for ISA probes;
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*
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* Revision 1.36.4.8 1996/06/25 17:40:19 bentson
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* reorder some code, fix types of some vars (int vs. long),
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* add cy_setup to support user declared ISA addresses
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*
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* Revision 1.36.4.7 1996/06/21 23:06:18 bentson
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* dump ioctl based firmware load (it's now a user level
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* program); ensure uninitialzed ports cannot be used
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*
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* Revision 1.36.4.6 1996/06/20 23:17:19 bentson
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* rename vars and restructure some code
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*
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* Revision 1.36.4.5 1996/06/14 15:09:44 bentson
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* get right status back after boot load
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*
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* Revision 1.36.4.4 1996/06/13 19:51:44 bentson
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* successfully loads firmware
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*
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* Revision 1.36.4.3 1996/06/13 06:08:33 bentson
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* add more of the code for the boot/load ioctls
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*
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* Revision 1.36.4.2 1996/06/11 21:00:51 bentson
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* start to add Z functionality--starting with ioctl
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* for loading firmware
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*
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* Revision 1.36.4.1 1996/06/10 18:03:02 bentson
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* added code to recognize Z/PCI card at initialization; report
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* presence, but card is not initialized (because firmware needs
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* to be loaded)
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*
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* Revision 1.36.3.8 1996/06/07 16:29:00 bentson
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* starting minor number at zero; added missing verify_area
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* as noted by Heiko Eißfeldt <heiko@colossus.escape.de>
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*
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* Revision 1.36.3.7 1996/04/19 21:06:18 bentson
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* remove unneeded boot message & fix CLOCAL hardware flow
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* control (Miquel van Smoorenburg <miquels@Q.cistron.nl>);
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* remove unused diagnostic statements; minor 0 is first;
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*
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* Revision 1.36.3.6 1996/03/13 13:21:17 marcio
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* The kernel function vremap (available only in later 1.3.xx kernels)
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* allows the access to memory addresses above the RAM. This revision
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* of the driver supports PCI boards below 1Mb (device id 0x100) and
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* above 1Mb (device id 0x101).
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*
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* Revision 1.36.3.5 1996/03/07 15:20:17 bentson
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* Some global changes to interrupt handling spilled into
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* this driver--mostly unused arguments in system function
|
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* calls. Also added change by Marcio Saito which should
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* reduce lost interrupts at startup by fast processors.
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*
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* Revision 1.36.3.4 1995/11/13 20:45:10 bentson
|
||||
* Changes by Corey Minyard <minyard@wf-rch.cirr.com> distributed
|
||||
* in 1.3.41 kernel to remove a possible race condition, extend
|
||||
* some error messages, and let the driver run as a loadable module
|
||||
* Change by Alan Wendt <alan@ez0.ezlink.com> to remove a
|
||||
* possible race condition.
|
||||
* Change by Marcio Saito <marcio@cyclades.com> to fix PCI addressing.
|
||||
*
|
||||
* Revision 1.36.3.3 1995/11/13 19:44:48 bentson
|
||||
* Changes by Linus Torvalds in 1.3.33 kernel distribution
|
||||
* required due to reordering of driver initialization.
|
||||
* Drivers are now initialized *after* memory management.
|
||||
*
|
||||
* Revision 1.36.3.2 1995/09/08 22:07:14 bentson
|
||||
* remove printk from ISR; fix typo
|
||||
*
|
||||
* Revision 1.36.3.1 1995/09/01 12:00:42 marcio
|
||||
* Minor fixes in the PCI board support. PCI function calls in
|
||||
* conditional compilation (CONFIG_PCI). Thanks to Jim Duncan
|
||||
* <duncan@okay.com>. "bad serial count" message removed.
|
||||
*
|
||||
* Revision 1.36.3 1995/08/22 09:19:42 marcio
|
||||
* Cyclom-Y/PCI support added. Changes in the cy_init routine and
|
||||
* board initialization. Changes in the boot messages. The driver
|
||||
* supports up to 4 boards and 64 ports by default.
|
||||
*
|
||||
* Revision 1.36.1.4 1995/03/29 06:14:14 bentson
|
||||
* disambiguate between Cyclom-16Y and Cyclom-32Ye;
|
||||
*
|
||||
* Revision 1.36.1.3 1995/03/23 22:15:35 bentson
|
||||
* add missing break in modem control block in ioctl switch statement
|
||||
* (discovered by Michael Edward Chastain <mec@jobe.shell.portal.com>);
|
||||
*
|
||||
* Revision 1.36.1.2 1995/03/22 19:16:22 bentson
|
||||
* make sure CTS flow control is set as soon as possible (thanks
|
||||
* to note from David Lambert <lambert@chesapeake.rps.slb.com>);
|
||||
*
|
||||
* Revision 1.36.1.1 1995/03/13 15:44:43 bentson
|
||||
* initialize defaults for receive threshold and stale data timeout;
|
||||
* cosmetic changes;
|
||||
*
|
||||
* Revision 1.36 1995/03/10 23:33:53 bentson
|
||||
* added support of chips 4-7 in 32 port Cyclom-Ye;
|
||||
* fix cy_interrupt pointer dereference problem
|
||||
* (Joe Portman <baron@aa.net>);
|
||||
* give better error response if open is attempted on non-existent port
|
||||
* (Zachariah Vaum <jchryslr@netcom.com>);
|
||||
* correct command timeout (Kenneth Lerman <lerman@@seltd.newnet.com>);
|
||||
* conditional compilation for -16Y on systems with fast, noisy bus;
|
||||
* comment out diagnostic print function;
|
||||
* cleaned up table of base addresses;
|
||||
* set receiver time-out period register to correct value,
|
||||
* set receive threshold to better default values,
|
||||
* set chip timer to more accurate 200 Hz ticking,
|
||||
* add code to monitor and modify receive parameters
|
||||
* (Rik Faith <faith@cs.unc.edu> Nick Simicich
|
||||
* <njs@scifi.emi.net>);
|
||||
*
|
||||
* Revision 1.35 1994/12/16 13:54:18 steffen
|
||||
* additional patch by Marcio Saito for board detection
|
||||
* Accidently left out in 1.34
|
||||
*
|
||||
* Revision 1.34 1994/12/10 12:37:12 steffen
|
||||
* This is the corrected version as suggested by Marcio Saito
|
||||
*
|
||||
* Revision 1.33 1994/12/01 22:41:18 bentson
|
||||
* add hooks to support more high speeds directly; add tytso
|
||||
* patch regarding CLOCAL wakeups
|
||||
*
|
||||
* Revision 1.32 1994/11/23 19:50:04 bentson
|
||||
* allow direct kernel control of higher signalling rates;
|
||||
* look for cards at additional locations
|
||||
*
|
||||
* Revision 1.31 1994/11/16 04:33:28 bentson
|
||||
* ANOTHER fix from Corey Minyard, minyard@wf-rch.cirr.com--
|
||||
* a problem in chars_in_buffer has been resolved by some
|
||||
* small changes; this should yield smoother output
|
||||
*
|
||||
* Revision 1.30 1994/11/16 04:28:05 bentson
|
||||
* Fix from Corey Minyard, Internet: minyard@metronet.com,
|
||||
* UUCP: minyard@wf-rch.cirr.com, WORK: minyardbnr.ca, to
|
||||
* cy_hangup that appears to clear up much (all?) of the
|
||||
* DTR glitches; also he's added/cleaned-up diagnostic messages
|
||||
*
|
||||
* Revision 1.29 1994/11/16 04:16:07 bentson
|
||||
* add change proposed by Ralph Sims, ralphs@halcyon.com, to
|
||||
* operate higher speeds in same way as other serial ports;
|
||||
* add more serial ports (for up to two 16-port muxes).
|
||||
*
|
||||
* Revision 1.28 1994/11/04 00:13:16 root
|
||||
* turn off diagnostic messages
|
||||
*
|
||||
* Revision 1.27 1994/11/03 23:46:37 root
|
||||
* bunch of changes to bring driver into greater conformance
|
||||
* with the serial.c driver (looking for missed fixes)
|
||||
*
|
||||
* Revision 1.26 1994/11/03 22:40:36 root
|
||||
* automatic interrupt probing fixed.
|
||||
*
|
||||
* Revision 1.25 1994/11/03 20:17:02 root
|
||||
* start to implement auto-irq
|
||||
*
|
||||
* Revision 1.24 1994/11/03 18:01:55 root
|
||||
* still working on modem signals--trying not to drop DTR
|
||||
* during the getty/login processes
|
||||
*
|
||||
* Revision 1.23 1994/11/03 17:51:36 root
|
||||
* extend baud rate support; set receive threshold as function
|
||||
* of baud rate; fix some problems with RTS/CTS;
|
||||
*
|
||||
* Revision 1.22 1994/11/02 18:05:35 root
|
||||
* changed arguments to udelay to type long to get
|
||||
* delays to be of correct duration
|
||||
*
|
||||
* Revision 1.21 1994/11/02 17:37:30 root
|
||||
* employ udelay (after calibrating loops_per_second earlier
|
||||
* in init/main.c) instead of using home-grown delay routines
|
||||
*
|
||||
* Revision 1.20 1994/11/02 03:11:38 root
|
||||
* cy_chars_in_buffer forces a return value of 0 to let
|
||||
* login work (don't know why it does); some functions
|
||||
* that were returning EFAULT, now executes the code;
|
||||
* more work on deciding when to disable xmit interrupts;
|
||||
*
|
||||
* Revision 1.19 1994/11/01 20:10:14 root
|
||||
* define routine to start transmission interrupts (by enabling
|
||||
* transmit interrupts); directly enable/disable modem interrupts;
|
||||
*
|
||||
* Revision 1.18 1994/11/01 18:40:45 bentson
|
||||
* Don't always enable transmit interrupts in startup; interrupt on
|
||||
* TxMpty instead of TxRdy to help characters get out before shutdown;
|
||||
* restructure xmit interrupt to check for chars first and quit if
|
||||
* none are ready to go; modem status (MXVRx) is upright, _not_ inverted
|
||||
* (to my view);
|
||||
*
|
||||
* Revision 1.17 1994/10/30 04:39:45 bentson
|
||||
* rename serial_driver and callout_driver to cy_serial_driver and
|
||||
* cy_callout_driver to avoid linkage interference; initialize
|
||||
* info->type to PORT_CIRRUS; ruggedize paranoia test; elide ->port
|
||||
* from cyclades_port structure; add paranoia check to cy_close;
|
||||
*
|
||||
* Revision 1.16 1994/10/30 01:14:33 bentson
|
||||
* change major numbers; add some _early_ return statements;
|
||||
*
|
||||
* Revision 1.15 1994/10/29 06:43:15 bentson
|
||||
* final tidying up for clean compile; enable some error reporting
|
||||
*
|
||||
* Revision 1.14 1994/10/28 20:30:22 Bentson
|
||||
* lots of changes to drag the driver towards the new tty_io
|
||||
* structures and operation. not expected to work, but may
|
||||
* compile cleanly.
|
||||
*
|
||||
* Revision 1.13 1994/07/21 23:08:57 Bentson
|
||||
* add some diagnostic cruft; support 24 lines (for testing
|
||||
* both -8Y and -16Y cards; be more thorough in servicing all
|
||||
* chips during interrupt; add "volatile" a few places to
|
||||
* circumvent compiler optimizations; fix base & offset
|
||||
* computations in block_til_ready (was causing chip 0 to
|
||||
* stop operation)
|
||||
*
|
||||
* Revision 1.12 1994/07/19 16:42:11 Bentson
|
||||
* add some hackery for kernel version 1.1.8; expand
|
||||
* error messages; refine timing for delay loops and
|
||||
* declare loop params volatile
|
||||
*
|
||||
* Revision 1.11 1994/06/11 21:53:10 bentson
|
||||
* get use of save_car right in transmit interrupt service
|
||||
*
|
||||
* Revision 1.10.1.1 1994/06/11 21:31:18 bentson
|
||||
* add some diagnostic printing; try to fix save_car stuff
|
||||
*
|
||||
* Revision 1.10 1994/06/11 20:36:08 bentson
|
||||
* clean up compiler warnings
|
||||
*
|
||||
* Revision 1.9 1994/06/11 19:42:46 bentson
|
||||
* added a bunch of code to support modem signalling
|
||||
*
|
||||
* Revision 1.8 1994/06/11 17:57:07 bentson
|
||||
* recognize break & parity error
|
||||
*
|
||||
* Revision 1.7 1994/06/05 05:51:34 bentson
|
||||
* Reorder baud table to be monotonic; add cli to CP; discard
|
||||
* incoming characters and status if the line isn't open; start to
|
||||
* fold code into cy_throttle; start to port get_serial_info,
|
||||
* set_serial_info, get_modem_info, set_modem_info, and send_break
|
||||
* from serial.c; expand cy_ioctl; relocate and expand config_setup;
|
||||
* get flow control characters from tty struct; invalidate ports w/o
|
||||
* hardware;
|
||||
*
|
||||
* Revision 1.6 1994/05/31 18:42:21 bentson
|
||||
* add a loop-breaker in the interrupt service routine;
|
||||
* note when port is initialized so that it can be shut
|
||||
* down under the right conditions; receive works without
|
||||
* any obvious errors
|
||||
*
|
||||
* Revision 1.5 1994/05/30 00:55:02 bentson
|
||||
* transmit works without obvious errors
|
||||
*
|
||||
* Revision 1.4 1994/05/27 18:46:27 bentson
|
||||
* incorporated more code from lib_y.c; can now print short
|
||||
* strings under interrupt control to port zero; seems to
|
||||
* select ports/channels/lines correctly
|
||||
*
|
||||
* Revision 1.3 1994/05/25 22:12:44 bentson
|
||||
* shifting from multi-port on a card to proper multiplexor
|
||||
* data structures; added skeletons of most routines
|
||||
*
|
||||
* Revision 1.2 1994/05/19 13:21:43 bentson
|
||||
* start to crib from other sources
|
||||
*
|
||||
*/
|
||||
|
||||
#define CY_VERSION "2.5"
|
||||
#define CY_VERSION "2.6"
|
||||
|
||||
/* If you need to install more boards than NR_CARDS, change the constant
|
||||
in the definition below. No other change is necessary to support up to
|
||||
@ -648,9 +80,7 @@
|
||||
#include <linux/firmware.h>
|
||||
#include <linux/device.h>
|
||||
|
||||
#include <asm/system.h>
|
||||
#include <linux/io.h>
|
||||
#include <asm/irq.h>
|
||||
#include <linux/uaccess.h>
|
||||
|
||||
#include <linux/kernel.h>
|
||||
@ -666,7 +96,6 @@ static void cy_send_xchar(struct tty_struct *tty, char ch);
|
||||
#ifndef SERIAL_XMIT_SIZE
|
||||
#define SERIAL_XMIT_SIZE (min(PAGE_SIZE, 4096))
|
||||
#endif
|
||||
#define WAKEUP_CHARS 256
|
||||
|
||||
#define STD_COM_FLAGS (0)
|
||||
|
||||
@ -756,25 +185,25 @@ static int cy_next_channel; /* next minor available */
|
||||
* HI VHI
|
||||
* 20
|
||||
*/
|
||||
static int baud_table[] = {
|
||||
static const int baud_table[] = {
|
||||
0, 50, 75, 110, 134, 150, 200, 300, 600, 1200,
|
||||
1800, 2400, 4800, 9600, 19200, 38400, 57600, 76800, 115200, 150000,
|
||||
230400, 0
|
||||
};
|
||||
|
||||
static char baud_co_25[] = { /* 25 MHz clock option table */
|
||||
static const char baud_co_25[] = { /* 25 MHz clock option table */
|
||||
/* value => 00 01 02 03 04 */
|
||||
/* divide by 8 32 128 512 2048 */
|
||||
0x00, 0x04, 0x04, 0x04, 0x04, 0x04, 0x03, 0x03, 0x03, 0x02,
|
||||
0x02, 0x02, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
|
||||
};
|
||||
|
||||
static char baud_bpr_25[] = { /* 25 MHz baud rate period table */
|
||||
static const char baud_bpr_25[] = { /* 25 MHz baud rate period table */
|
||||
0x00, 0xf5, 0xa3, 0x6f, 0x5c, 0x51, 0xf5, 0xa3, 0x51, 0xa3,
|
||||
0x6d, 0x51, 0xa3, 0x51, 0xa3, 0x51, 0x36, 0x29, 0x1b, 0x15
|
||||
};
|
||||
|
||||
static char baud_co_60[] = { /* 60 MHz clock option table (CD1400 J) */
|
||||
static const char baud_co_60[] = { /* 60 MHz clock option table (CD1400 J) */
|
||||
/* value => 00 01 02 03 04 */
|
||||
/* divide by 8 32 128 512 2048 */
|
||||
0x00, 0x00, 0x00, 0x04, 0x04, 0x04, 0x04, 0x04, 0x03, 0x03,
|
||||
@ -782,13 +211,13 @@ static char baud_co_60[] = { /* 60 MHz clock option table (CD1400 J) */
|
||||
0x00
|
||||
};
|
||||
|
||||
static char baud_bpr_60[] = { /* 60 MHz baud rate period table (CD1400 J) */
|
||||
static const char baud_bpr_60[] = { /* 60 MHz baud rate period table (CD1400 J) */
|
||||
0x00, 0x82, 0x21, 0xff, 0xdb, 0xc3, 0x92, 0x62, 0xc3, 0x62,
|
||||
0x41, 0xc3, 0x62, 0xc3, 0x62, 0xc3, 0x82, 0x62, 0x41, 0x32,
|
||||
0x21
|
||||
};
|
||||
|
||||
static char baud_cor3[] = { /* receive threshold */
|
||||
static const char baud_cor3[] = { /* receive threshold */
|
||||
0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a,
|
||||
0x0a, 0x0a, 0x0a, 0x09, 0x09, 0x08, 0x08, 0x08, 0x08, 0x07,
|
||||
0x07
|
||||
@ -805,7 +234,7 @@ static char baud_cor3[] = { /* receive threshold */
|
||||
* cables.
|
||||
*/
|
||||
|
||||
static char rflow_thr[] = { /* rflow threshold */
|
||||
static const char rflow_thr[] = { /* rflow threshold */
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a,
|
||||
0x0a
|
||||
@ -827,7 +256,7 @@ static const unsigned int cy_chip_offset[] = { 0x0000,
|
||||
/* PCI related definitions */
|
||||
|
||||
#ifdef CONFIG_PCI
|
||||
static struct pci_device_id cy_pci_dev_id[] __devinitdata = {
|
||||
static const struct pci_device_id cy_pci_dev_id[] = {
|
||||
/* PCI < 1Mb */
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Y_Lo) },
|
||||
/* PCI > 1Mb */
|
||||
@ -893,7 +322,7 @@ static inline bool cyz_is_loaded(struct cyclades_card *card)
|
||||
}
|
||||
|
||||
static inline int serial_paranoia_check(struct cyclades_port *info,
|
||||
char *name, const char *routine)
|
||||
const char *name, const char *routine)
|
||||
{
|
||||
#ifdef SERIAL_PARANOIA_CHECK
|
||||
if (!info) {
|
||||
@ -909,7 +338,7 @@ static inline int serial_paranoia_check(struct cyclades_port *info,
|
||||
}
|
||||
#endif
|
||||
return 0;
|
||||
} /* serial_paranoia_check */
|
||||
}
|
||||
|
||||
/***********************************************************/
|
||||
/********* Start of block of Cyclom-Y specific code ********/
|
||||
@ -3030,11 +2459,9 @@ cy_set_serial_info(struct cyclades_port *info, struct tty_struct *tty,
|
||||
struct serial_struct __user *new_info)
|
||||
{
|
||||
struct serial_struct new_serial;
|
||||
struct cyclades_port old_info;
|
||||
|
||||
if (copy_from_user(&new_serial, new_info, sizeof(new_serial)))
|
||||
return -EFAULT;
|
||||
old_info = *info;
|
||||
|
||||
if (!capable(CAP_SYS_ADMIN)) {
|
||||
if (new_serial.close_delay != info->port.close_delay ||
|
||||
@ -3376,7 +2803,6 @@ static int cy_break(struct tty_struct *tty, int break_state)
|
||||
static int get_mon_info(struct cyclades_port *info,
|
||||
struct cyclades_monitor __user *mon)
|
||||
{
|
||||
|
||||
if (copy_to_user(mon, &info->mon, sizeof(struct cyclades_monitor)))
|
||||
return -EFAULT;
|
||||
info->mon.int_count = 0;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user