changelog

Serial 驱动程序

2000-09-14    <[e-mail]>

	* Release of serial driver 5.05

	* serial.c (receive_chars): Fix a bug which could cause us to
		overflow the flip buffer.  (Thanks to Russel King for
		pointing out this problem.)

	* serial_compat.h (del_timer_sync): Only define del_timer_sync for
		kernels older than 2.4.0.

	* serial.c (shutdown): Make sure the UART is taken out of enhanced
		mode after we put the UART to sleep, so we avoid
		accidentally triggering an unexpected UART feature.

	* serial.c (serial_init_one, probe_serial_pci): Applied (by hand)
		Jeff Garzik's patch to use the new PCI interface.  This
		should allow cardbus devices to work (at least when
		inserted); getting pulled out may be a different story.  :-)

	* serial_compat.h: Added new framework to deal with the new PCI
		interface on 2.2 kernels.
	
2000-09-12    <[e-mail]>

	* Release of serial driver 5.04

	* serial_compat.h: Add PCI device/vendor ID's for SGI IOC3 

	* serial.c: Synchronize with 2.4.0test8.  Added SGI device, and 
		cleaned up serial warnings around CONFIG_SERIAL_RSA.
		(register_serial): Only start scanning preferentially
		at /dev/ttyS4 for x86 architecture.

	* serial.c (receive_chars): Moved ignore_status_mask test outside
		of special parity/frame/overflow handling, since if CREAD
		is not set, all characters must be ignored (this is done
		by setting UART_LSR_DR).

2000-08-11    <[e-mail]>

	* Release of serial driver 5.03

	* serial_reg.h (UART_ICR): Fix stupid comment bug (reversed
		Transmitter and Receiver FIFO level)

	* serial.c (rs_init): Make rs_init not be static to avoid problems
		with 2.2 kernels.

	* serial.c, serial_compat.h: Add support for DCI_PCCOM8 board.
		(Courtesy of Craig Schlenter <[e-mail]>)

2000-08-09    <[e-mail]>

	* Release of serial driver 5.02

	* serial.c: Move the SAK and Magic SysRQ check to before
		read_status_mask and ignore_status_mask are processed, so
		it doesn't get masked by them.  Revert the August 8th
		change which hacked info->read_status_mask.

	* serial.c (autoconfig_startech_uarts): Initialize ACR to zero
		before probing using serial_icr_read.

2000-08-08    <[e-mail]>

	* serial.c (change_speed): Add UART_LSR_BI to info->read_status_mask
		under two additional circumstances (if the line is the
		serial console and magic sysrq is enabled, and if the
		secure attention key is enabled.)
		(pci_timedia_fn): Fix bug in timedia support which caused
		it not to work.

	* serial.c: Added module descriptions	

2000-07-26    <[e-mail]>

	* Release of serial driver 5.01

	* serial.c: Update to use the new connect-tech pci id's.

2000-07-26    <[e-mail]>

	* serial.c: PLX_1076 and PLX_SPCOM800 are the same.  Remove usage
		of PLX_1076 in favor of PLX_SPCOM800.
	
	* serial.c (set_serial_info): Don't allow the IRQ to be negative.
		(do_autoconfig): Only override the IRQ if detect_uart_irq()
		returns a valid irq.
		(wait_for_xmitr, receive_chars): Save the LSR_BI in
		wait_for_xmitr since it gets cleared when LSR is read.

	* serial.c: Sync up with 2.4.0test5-pre5.  Added support for
		Timedia cards, but fixed up the support so that it doesn't
		cause a massive explosion in the size of the pci
		configuration table.

2000-07-20    <[e-mail]>

	* serial.c (rs_timer, figure_IRQ_timeout): Move the calculation of
		subtracting 2 to figure_IRQ_timeout, and make sure that
		mod_timer is never sets the expire time to less than
		jiffies+1.

	* serial.c (serial_pci_guess_board): Fix a stupid bug in the
		hueristic code which counts how many I/O ports in the PCI
		port.

	* serial.h: Change ASYNC_AUTOPROBE to have a number in the
		external flag number space.

	* serial.c, serial_compat.h: Add various new ConnectTech boards,
		and eliminate some impossible hardware combinations that
		don't actually happen in nature.

	* serialP.h: Fix typo (missing space).

	* serial.c: Make sure the RSA array variables are always available.

	* serial_compat.h: Clean up the define of new-style CPU CONFIG
		defines. 

2000-07-19    <[e-mail]>

	* serial.c: fix some returns on failure not using MOD_DEC_USE_COUNT.
		Arnaldo Carvalho de Melo <[e-mail]>

	* serial.c, serial_compat.h: Synchronize with Linux-2.4.0test5-pre2.  
		Remove use of RS_TIMER and use fixed timers instead.  Use
		__exit for rs_fini to avoid use of #ifdef MODULE.  Fix
		port handling on 64 bit machines.
	
2000-06-14  Theodore Ts'o  <[e-mail]>

	* serial.c, serial_compat.h (PCI_DEVICE_ID_PLX_1077,
		PCI_DEVICE_ID_PLX_1076): Add support for these PLX PCI
		serial boards.

	* serial.c: Synchronize with Linux-2.4.0test1-ac11.
		(Removed CONFIG_KDB code, and added SupraExpress 
		to the PNP table)
	
	* serial.c: (serial_pnp_guess_board): If a device has no PNP
		resources, fail gracefully instead of oops'ing.

2000-06-09    <[e-mail]>

	* serial.c: Add support for Linux 2.2.15 and above, which need
		support for tty->poll_wait.

2000-05-29  Theodore Ts'o  <[e-mail]>

	* Release of serial driver 5.00

	* Makefile: Add support for 2.4 kernels in the serial.ver rule.

	* serial.c (pci_boards): Add support for the RAStel 2 port modem.

	* serial.c: Use a much more compact encoding of valid ISA PNP
		devices, and include a much larger list of ISA PNP modems,
		courtesy of [e-mail].

	* serial.c (modem_names, check_name): Mark as initial data/code.

	* serial.c (check_compatible_id): New function which checks to see
		whether a device has a generic PNP ID defined.

	* serial.c (serial_pnp_guess_board): Change hueristics to require
		both a name which indicates a modem plus having a
		generic PNP ID modem.

	* serial.c (probe_serial_pnp): Changed to use the more compact
		encouding of valid PNP boards.  Also, change to skip
		devices which have already been activated.

	* serial.c (serial_console_setup): Fix compile bug if CONFIG_KDB
		is defined.

2000-05-21  Theodore Ts'o  <[e-mail]>

	* Release of serial driver 4.95

	* serial.c (autoconfig, pci_inteli960ni_fn): Improve debugging
		messages.

	* serial.h, serial.c (start_pci_pnp_board): Set the new
		ASYNC_AUTOPROBE flag if the device was autoprobed.  (So
		setserial -G can skip it.)

2000-05-19  Theodore Ts'o  <[e-mail]>

	* rc.serial: Update to work with with devfs.  Also add standard
		init.d commands (status, restart, reload).

	* test_version.sh: Fix silly typo LIBUX_SRC should be LINUX_SRC

	* Makefile, test_version.sh: Change makefile to use the standard
		test_version.sh script.

	* setup.sh: Clean up script so that if the .kver file doesn't
		exist, it prints an error and exits.

	* Add support for the RSA-DV II/S card added, from patches
		submitted by Kiyokazu SUTO <[e-mail]>

2000-05-05  Theodore Ts'o  <[e-mail]>

	* serial.c: When calling TIOCMIWAIT, force modem status interrupts
		on.  Updated version date in preparation of release of
		4.95. 

2000-04-30  Theodore Ts'o  <[e-mail]>

	* serial.c: Update version number to 4.95

	* serial.c (start_pci_pnp_board): Add call to pci_enable_device if
		the device is not a PNP device.  (Added new flag
		SPCI_FL_ISPNP for this purpose.)  Removed call to
		pcibios_present(), since if it's there is no PCIBIOS, the
		pci_devices linked list is initialized to NULL.

	* serial.c: Fixed PNP entry for ASKEY 56K Plug&Play Modem.

	* serial.c: Synced up with 2.3.99pre6; added #ifdef test for
		CONFIG_DEVFS_FS.

	* serial.c: Fixed bug (that was apparently hidden by egcs) where
		we refering to port_high in a struct serial_state, where
		it doesn't exist.

2000-04-25  Theodore Ts'o  <[e-mail]>

	* Release of serial driver 4.94

	* serial.c, serial.h: Fix the type change which broke binary
		compatibility on Alpha and other 64-bit platforms for the
		setserial program.

	* serial.c (autoconfig, startup): Add a new flag,
		ASYNC_BUGGY_UART, which if set, skips certain failsafe
		checks. 

	* serial.c (probe_serial_pnp): Add Andrew Panin's patch to support
		generic autodetection of ISA PnP modems.