X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fchar%2Fcyclades.c;h=df5038bbcbc28647cc64eed72f0fee6fbc8c2568;hb=922553f20b6ff03d2f08229e6e4556843ae874da;hp=39bfe043fba81398e80954da4242491b8a2d2ed1;hpb=ce97a09767b59dcde3715ba4a9eebc71b0ce71b2;p=safe%2Fjmp%2Flinux-2.6 diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c index 39bfe04..df5038b 100644 --- a/drivers/char/cyclades.c +++ b/drivers/char/cyclades.c @@ -11,7 +11,7 @@ * Initially written by Randolph Bentson . * Modified and maintained by Marcio Saito . * - * Copyright (C) 2007 Jiri Slaby + * Copyright (C) 2007-2009 Jiri Slaby * * Much of the design and some of the code came from serial.c * which was copyright (C) 1991, 1992 Linus Torvalds. It was @@ -19,578 +19,9 @@ * and then fixed as suggested by Michael K. Johnson 12/12/92. * Converted to pci probing and cleaned up by Jiri Slaby. * - * This version supports shared IRQ's (only for PCI boards). - * - * $Log: cyclades.c,v $ - * Prevent users from opening non-existing Z ports. - * - * Revision 2.3.2.8 2000/07/06 18:14:16 ivan - * Fixed the PCI detection function to work properly on Alpha systems. - * Implemented support for TIOCSERGETLSR ioctl. - * Implemented full support for non-standard baud rates. - * - * Revision 2.3.2.7 2000/06/01 18:26:34 ivan - * Request PLX I/O region, although driver doesn't use it, to avoid - * problems with other drivers accessing it. - * Removed count for on-board buffer characters in cy_chars_in_buffer - * (Cyclades-Z only). - * - * Revision 2.3.2.6 2000/05/05 13:56:05 ivan - * Driver now reports physical instead of virtual memory addresses. - * Masks were added to some Cyclades-Z read accesses. - * Implemented workaround for PLX9050 bug that would cause a system lockup - * in certain systems, depending on the MMIO addresses allocated to the - * board. - * Changed the Tx interrupt programming in the CD1400 chips to boost up - * performance (Cyclom-Y only). - * Code is now compliant with the new module interface (module_[init|exit]). - * Make use of the PCI helper functions to access PCI resources. - * Did some code "housekeeping". - * - * Revision 2.3.2.5 2000/01/19 14:35:33 ivan - * Fixed bug in cy_set_termios on CRTSCTS flag turnoff. - * - * Revision 2.3.2.4 2000/01/17 09:19:40 ivan - * Fixed SMP locking in Cyclom-Y interrupt handler. - * - * Revision 2.3.2.3 1999/12/28 12:11:39 ivan - * Added a new cyclades_card field called nports to allow the driver to - * know the exact number of ports found by the Z firmware after its load; - * RX buffer contention prevention logic on interrupt op mode revisited - * (Cyclades-Z only); - * Revisited printk's for Z debug; - * Driver now makes sure that the constant SERIAL_XMIT_SIZE is defined; - * - * Revision 2.3.2.2 1999/10/01 11:27:43 ivan - * Fixed bug in cyz_poll that would make all ports but port 0 - * unable to transmit/receive data (Cyclades-Z only); - * Implemented logic to prevent the RX buffer from being stuck with data - * due to a driver / firmware race condition in interrupt op mode - * (Cyclades-Z only); - * Fixed bug in block_til_ready logic that would lead to a system crash; - * Revisited cy_close spinlock usage; - * - * Revision 2.3.2.1 1999/09/28 11:01:22 ivan - * Revisited CONFIG_PCI conditional compilation for PCI board support; - * Implemented TIOCGICOUNT and TIOCMIWAIT ioctl support; - * _Major_ cleanup on the Cyclades-Z interrupt support code / logic; - * Removed CTS handling from the driver -- this is now completely handled - * by the firmware (Cyclades-Z only); - * Flush RX on-board buffers on a port open (Cyclades-Z only); - * Fixed handling of ASYNC_SPD_* TTY flags; - * Module unload now unmaps all memory area allocated by ioremap; - * - * Revision 2.3.1.1 1999/07/15 16:45:53 ivan - * Removed CY_PROC conditional compilation; - * Implemented SMP-awareness for the driver; - * Implemented a new ISA IRQ autoprobe that uses the irq_probe_[on|off] - * functions; - * The driver now accepts memory addresses (maddr=0xMMMMM) and IRQs - * (irq=NN) as parameters (only for ISA boards); - * Fixed bug in set_line_char that would prevent the Cyclades-Z - * ports from being configured at speeds above 115.2Kbps; - * Fixed bug in cy_set_termios that would prevent XON/XOFF flow control - * switching from working properly; - * The driver now only prints IRQ info for the Cyclades-Z if it's - * configured to work in interrupt mode; - * - * Revision 2.2.2.3 1999/06/28 11:13:29 ivan - * Added support for interrupt mode operation for the Z cards; - * Removed the driver inactivity control for the Z; - * Added a missing MOD_DEC_USE_COUNT in the cy_open function for when - * the Z firmware is not loaded yet; - * Replaced the "manual" Z Tx flush buffer by a call to a FW command of - * same functionality; - * Implemented workaround for IRQ setting loss on the PCI configuration - * registers after a PCI bridge EEPROM reload (affects PLX9060 only); - * - * Revision 2.2.2.2 1999/05/14 17:18:15 ivan - * /proc entry location changed to /proc/tty/driver/cyclades; - * Added support to shared IRQ's (only for PCI boards); - * Added support for Cobalt Qube2 systems; - * IRQ [de]allocation scheme revisited; - * BREAK implementation changed in order to make use of the 'break_ctl' - * TTY facility; - * Fixed typo in TTY structure field 'driver_name'; - * Included a PCI bridge reset and EEPROM reload in the board - * initialization code (for both Y and Z series). - * - * Revision 2.2.2.1 1999/04/08 16:17:43 ivan - * Fixed a bug in cy_wait_until_sent that was preventing the port to be - * closed properly after a SIGINT; - * Module usage counter scheme revisited; - * Added support to the upcoming Y PCI boards (i.e., support to additional - * PCI Device ID's). - * - * Revision 2.2.1.10 1999/01/20 16:14:29 ivan - * Removed all unnecessary page-alignement operations in ioremap calls - * (ioremap is currently safe for these operations). - * - * Revision 2.2.1.9 1998/12/30 18:18:30 ivan - * Changed access to PLX PCI bridge registers from I/O to MMIO, in - * order to make PLX9050-based boards work with certain motherboards. - * - * Revision 2.2.1.8 1998/11/13 12:46:20 ivan - * cy_close function now resets (correctly) the tty->closing flag; - * JIFFIES_DIFF macro fixed. - * - * Revision 2.2.1.7 1998/09/03 12:07:28 ivan - * Fixed bug in cy_close function, which was not informing HW of - * which port should have the reception disabled before doing so; - * fixed Cyclom-8YoP hardware detection bug. - * - * Revision 2.2.1.6 1998/08/20 17:15:39 ivan - * Fixed bug in cy_close function, which causes malfunction - * of one of the first 4 ports when a higher port is closed - * (Cyclom-Y only). - * - * Revision 2.2.1.5 1998/08/10 18:10:28 ivan - * Fixed Cyclom-4Yo hardware detection bug. - * - * Revision 2.2.1.4 1998/08/04 11:02:50 ivan - * /proc/cyclades implementation with great collaboration of - * Marc Lewis ; - * cyy_interrupt was changed to avoid occurrence of kernel oopses - * during PPP operation. - * - * Revision 2.2.1.3 1998/06/01 12:09:10 ivan - * General code review in order to comply with 2.1 kernel standards; - * data loss prevention for slow devices revisited (cy_wait_until_sent - * was created); - * removed conditional compilation for new/old PCI structure support - * (now the driver only supports the new PCI structure). - * - * Revision 2.2.1.1 1998/03/19 16:43:12 ivan - * added conditional compilation for new/old PCI structure support; - * removed kernel series (2.0.x / 2.1.x) conditional compilation. - * - * Revision 2.1.1.3 1998/03/16 18:01:12 ivan - * cleaned up the data loss fix; - * fixed XON/XOFF handling once more (Cyclades-Z); - * general review of the driver routines; - * introduction of a mechanism to prevent data loss with slow - * printers, by forcing a delay before closing the port. - * - * Revision 2.1.1.2 1998/02/17 16:50:00 ivan - * fixed detection/handling of new CD1400 in Ye boards; - * fixed XON/XOFF handling (Cyclades-Z); - * fixed data loss caused by a premature port close; - * introduction of a flag that holds the CD1400 version ID per port - * (used by the CYGETCD1400VER new ioctl). - * - * Revision 2.1.1.1 1997/12/03 17:31:19 ivan - * Code review for the module cleanup routine; - * fixed RTS and DTR status report for new CD1400's in get_modem_info; - * includes anonymous changes regarding signal_pending. - * - * Revision 2.1 1997/11/01 17:42:41 ivan - * Changes in the driver to support Alpha systems (except 8Zo V_1); - * BREAK fix for the Cyclades-Z boards; - * driver inactivity control by FW implemented; - * introduction of flag that allows driver to take advantage of - * a special CD1400 feature related to HW flow control; - * added support for the CD1400 rev. J (Cyclom-Y boards); - * introduction of ioctls to: - * - control the rtsdtr_inv flag (Cyclom-Y); - * - control the rflow flag (Cyclom-Y); - * - adjust the polling interval (Cyclades-Z); - * - * Revision 1.36.4.33 1997/06/27 19:00:00 ivan - * Fixes related to kernel version conditional - * compilation. - * - * Revision 1.36.4.32 1997/06/14 19:30:00 ivan - * Compatibility issues between kernels 2.0.x and - * 2.1.x (mainly related to clear_bit function). - * - * Revision 1.36.4.31 1997/06/03 15:30:00 ivan - * Changes to define the memory window according to the - * board type. - * - * Revision 1.36.4.30 1997/05/16 15:30:00 daniel - * Changes to support new cycladesZ boards. - * - * Revision 1.36.4.29 1997/05/12 11:30:00 daniel - * Merge of Bentson's and Daniel's version 1.36.4.28. - * Corrects bug in cy_detect_pci: check if there are more - * ports than the number of static structs allocated. - * Warning message during initialization if this driver is - * used with the new generation of cycladesZ boards. Those - * will be supported only in next release of the driver. - * Corrects bug in cy_detect_pci and cy_detect_isa that - * returned wrong number of VALID boards, when a cyclomY - * was found with no serial modules connected. - * Changes to use current (2.1.x) kernel subroutine names - * and created macros for compilation with 2.0.x kernel, - * instead of the other way around. - * - * Revision 1.36.4.28 1997/05/?? ??:00:00 bentson - * Change queue_task_irq_off to queue_task_irq. - * The inline function queue_task_irq_off (tqueue.h) - * was removed from latest releases of 2.1.x kernel. - * Use of macro __init to mark the initialization - * routines, so memory can be reused. - * Also incorporate implementation of critical region - * in function cleanup_module() created by anonymous - * linuxer. - * - * Revision 1.36.4.28 1997/04/25 16:00:00 daniel - * Change to support new firmware that solves DCD problem: - * application could fail to receive SIGHUP signal when DCD - * varying too fast. - * - * Revision 1.36.4.27 1997/03/26 10:30:00 daniel - * Changed for support linux versions 2.1.X. - * Backward compatible with linux versions 2.0.X. - * Corrected illegal use of filler field in - * CH_CTRL struct. - * Deleted some debug messages. - * - * Revision 1.36.4.26 1997/02/27 12:00:00 daniel - * Included check for NULL tty pointer in cyz_poll. - * - * Revision 1.36.4.25 1997/02/26 16:28:30 bentson - * Bill Foster at Blarg! Online services noticed that - * some of the switch elements of -Z modem control - * lacked a closing "break;" - * - * Revision 1.36.4.24 1997/02/24 11:00:00 daniel - * Changed low water threshold for buffer xmit_buf - * - * Revision 1.36.4.23 1996/12/02 21:50:16 bentson - * Marcio provided fix to modem status fetch for -Z - * - * Revision 1.36.4.22 1996/10/28 22:41:17 bentson - * improve mapping of -Z control page (thanks to Steve - * Price for help on this) - * - * Revision 1.36.4.21 1996/09/10 17:00:10 bentson - * shift from CPU-bound to memcopy in cyz_polling operation - * - * Revision 1.36.4.20 1996/09/09 18:30:32 Bentson - * Added support to set and report higher speeds. - * - * Revision 1.36.4.19c 1996/08/09 10:00:00 Marcio Saito - * Some fixes in the HW flow control for the BETA release. - * Don't try to register the IRQ. - * - * Revision 1.36.4.19 1996/08/08 16:23:18 Bentson - * make sure "cyc" appears in all kernel messages; all soft interrupts - * handled by same routine; recognize out-of-band reception; comment - * out some diagnostic messages; leave RTS/CTS flow control to hardware; - * fix race condition in -Z buffer management; only -Y needs to explicitly - * flush chars; tidy up some startup messages; - * - * Revision 1.36.4.18 1996/07/25 18:57:31 bentson - * shift MOD_INC_USE_COUNT location to match - * serial.c; purge some diagnostic messages; - * - * Revision 1.36.4.17 1996/07/25 18:01:08 bentson - * enable modem status messages and fetch & process them; note - * time of last activity type for each port; set_line_char now - * supports more than line 0 and treats 0 baud correctly; - * get_modem_info senses rs_status; - * - * Revision 1.36.4.16 1996/07/20 08:43:15 bentson - * barely works--now's time to turn on - * more features 'til it breaks - * - * Revision 1.36.4.15 1996/07/19 22:30:06 bentson - * check more -Z board status; shorten boot message - * - * Revision 1.36.4.14 1996/07/19 22:20:37 bentson - * fix reference to ch_ctrl in startup; verify return - * values from cyz_issue_cmd and cyz_update_channel; - * more stuff to get modem control correct; - * - * Revision 1.36.4.13 1996/07/11 19:53:33 bentson - * more -Z stuff folded in; re-order changes to put -Z stuff - * after -Y stuff (to make changes clearer) - * - * Revision 1.36.4.12 1996/07/11 15:40:55 bentson - * Add code to poll Cyclades-Z. Add code to get & set RS-232 control. - * Add code to send break. Clear firmware ID word at startup (so - * that other code won't talk to inactive board). - * - * Revision 1.36.4.11 1996/07/09 05:28:29 bentson - * add code for -Z in set_line_char - * - * Revision 1.36.4.10 1996/07/08 19:28:37 bentson - * fold more -Z stuff (or in some cases, error messages) - * into driver; add text to "don't know what to do" messages. - * - * Revision 1.36.4.9 1996/07/08 18:38:38 bentson - * moved compile-time flags near top of file; cosmetic changes - * to narrow text (to allow 2-up printing); changed many declarations - * to "static" to limit external symbols; shuffled code order to - * coalesce -Y and -Z specific code, also to put internal functions - * in order of tty_driver structure; added code to recognize -Z - * ports (and for moment, do nothing or report error); add cy_startup - * to parse boot command line for extra base addresses for ISA probes; - * - * Revision 1.36.4.8 1996/06/25 17:40:19 bentson - * reorder some code, fix types of some vars (int vs. long), - * add cy_setup to support user declared ISA addresses - * - * Revision 1.36.4.7 1996/06/21 23:06:18 bentson - * dump ioctl based firmware load (it's now a user level - * program); ensure uninitialzed ports cannot be used - * - * Revision 1.36.4.6 1996/06/20 23:17:19 bentson - * rename vars and restructure some code - * - * Revision 1.36.4.5 1996/06/14 15:09:44 bentson - * get right status back after boot load - * - * Revision 1.36.4.4 1996/06/13 19:51:44 bentson - * successfully loads firmware - * - * Revision 1.36.4.3 1996/06/13 06:08:33 bentson - * add more of the code for the boot/load ioctls - * - * Revision 1.36.4.2 1996/06/11 21:00:51 bentson - * start to add Z functionality--starting with ioctl - * for loading firmware - * - * Revision 1.36.4.1 1996/06/10 18:03:02 bentson - * added code to recognize Z/PCI card at initialization; report - * presence, but card is not initialized (because firmware needs - * to be loaded) - * - * Revision 1.36.3.8 1996/06/07 16:29:00 bentson - * starting minor number at zero; added missing verify_area - * as noted by Heiko Eissfeldt - * - * Revision 1.36.3.7 1996/04/19 21:06:18 bentson - * remove unneeded boot message & fix CLOCAL hardware flow - * control (Miquel van Smoorenburg ); - * remove unused diagnostic statements; minor 0 is first; - * - * Revision 1.36.3.6 1996/03/13 13:21:17 marcio - * The kernel function vremap (available only in later 1.3.xx kernels) - * allows the access to memory addresses above the RAM. This revision - * of the driver supports PCI boards below 1Mb (device id 0x100) and - * above 1Mb (device id 0x101). - * - * Revision 1.36.3.5 1996/03/07 15:20:17 bentson - * Some global changes to interrupt handling spilled into - * this driver--mostly unused arguments in system function - * calls. Also added change by Marcio Saito which should - * reduce lost interrupts at startup by fast processors. - * - * Revision 1.36.3.4 1995/11/13 20:45:10 bentson - * Changes by Corey Minyard 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 to remove a - * possible race condition. - * Change by Marcio Saito 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 - * . "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 ); - * - * 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 ); - * - * 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 ); - * give better error response if open is attempted on non-existent port - * (Zachariah Vaum ); - * correct command timeout (Kenneth Lerman ); - * 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 Nick Simicich - * ); - * - * 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 @@ -605,7 +36,6 @@ #define NR_PORTS 256 -#define ZE_V1_NPORTS 64 #define ZO_V1 0 #define ZO_V2 1 #define ZE_V1 2 @@ -624,7 +54,7 @@ #undef CY_PCI_DEBUG /* - * Include section + * Include section */ #include #include @@ -635,6 +65,7 @@ #include #include #include +#include #include #include #include @@ -647,37 +78,23 @@ #include #include #include +#include -#include -#include -#include -#include +#include +#include #include #include #include #include +#include -static void cy_throttle(struct tty_struct *tty); static void cy_send_xchar(struct tty_struct *tty, char ch); -#define IS_CYC_Z(card) ((card).num_chips == -1) - -#define Z_FPGA_CHECK(card) \ - ((readl(&((struct RUNTIME_9060 __iomem *) \ - ((card).ctl_addr))->init_ctrl) & (1<<17)) != 0) - -#define ISZLOADED(card) (((ZO_V1==readl(&((struct RUNTIME_9060 __iomem *) \ - ((card).ctl_addr))->mail_box_0)) || \ - Z_FPGA_CHECK(card)) && \ - (ZFIRM_ID==readl(&((struct FIRM_ID __iomem *) \ - ((card).base_addr+ID_ADDRESS))->signature))) - #ifndef SERIAL_XMIT_SIZE #define SERIAL_XMIT_SIZE (min(PAGE_SIZE, 4096)) #endif -#define WAKEUP_CHARS 256 #define STD_COM_FLAGS (0) @@ -686,8 +103,6 @@ static void cy_send_xchar(struct tty_struct *tty, char ch); #define DRIVER_VERSION 0x02010203 #define RAM_SIZE 0x80000 -#define Z_FPGA_LOADED(X) ((readl(&(X)->init_ctrl) & (1<<17)) != 0) - enum zblock_type { ZBLOCK_PRG = 0, ZBLOCK_FPGA = 1 @@ -727,8 +142,6 @@ static struct tty_driver *cy_serial_driver; driver to probe addresses at a different address, add it to this table. If the driver is probing some other board and causing problems, remove the offending address from this table. - The cy_setup function extracts additional addresses from the - boot options line. The form is "cyclades=address,address..." */ static unsigned int cy_isa_addresses[] = { @@ -765,31 +178,31 @@ static int cy_next_channel; /* next minor available */ /* * This is used to look up the divisor speeds and the timeouts * We're normally limited to 15 distinct baud rates. The extra - * are accessed via settings in info->flags. + * are accessed via settings in info->port.flags. * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, * 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, * 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, @@ -797,13 +210,13 @@ 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 @@ -811,16 +224,16 @@ static char baud_cor3[] = { /* receive threshold */ /* * The Cyclades driver implements HW flow control as any serial driver. - * The cyclades_port structure member rflow and the vector rflow_thr - * allows us to take advantage of a special feature in the CD1400 to avoid - * data loss even when the system interrupt latency is too high. These flags - * are to be used only with very special applications. Setting these flags - * requires the use of a special cable (DTR and RTS reversed). In the new - * CD1400-based boards (rev. 6.00 or later), there is no need for special + * The cyclades_port structure member rflow and the vector rflow_thr + * allows us to take advantage of a special feature in the CD1400 to avoid + * data loss even when the system interrupt latency is too high. These flags + * are to be used only with very special applications. Setting these flags + * requires the use of a special cable (DTR and RTS reversed). In the new + * CD1400-based boards (rev. 6.00 or later), there is no need for special * 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 @@ -829,7 +242,7 @@ static char rflow_thr[] = { /* rflow threshold */ /* The Cyclom-Ye has placed the sequential chips in non-sequential * address order. This look-up table overcomes that problem. */ -static int cy_chip_offset[] = { 0x0000, +static const unsigned int cy_chip_offset[] = { 0x0000, 0x0400, 0x0800, 0x0C00, @@ -842,29 +255,35 @@ static int cy_chip_offset[] = { 0x0000, /* PCI related definitions */ #ifdef CONFIG_PCI -static struct pci_device_id cy_pci_dev_id[] __devinitdata = { - { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Y_Lo) }, /* PCI < 1Mb */ - { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Y_Hi) }, /* PCI > 1Mb */ - { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_4Y_Lo) }, /* 4Y PCI < 1Mb */ - { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_4Y_Hi) }, /* 4Y PCI > 1Mb */ - { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_8Y_Lo) }, /* 8Y PCI < 1Mb */ - { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_8Y_Hi) }, /* 8Y PCI > 1Mb */ - { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Z_Lo) }, /* Z PCI < 1Mb */ - { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Z_Hi) }, /* Z PCI > 1Mb */ +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 */ + { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Y_Hi) }, + /* 4Y PCI < 1Mb */ + { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_4Y_Lo) }, + /* 4Y PCI > 1Mb */ + { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_4Y_Hi) }, + /* 8Y PCI < 1Mb */ + { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_8Y_Lo) }, + /* 8Y PCI > 1Mb */ + { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_8Y_Hi) }, + /* Z PCI < 1Mb */ + { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Z_Lo) }, + /* Z PCI > 1Mb */ + { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Z_Hi) }, { } /* end of table */ }; MODULE_DEVICE_TABLE(pci, cy_pci_dev_id); #endif static void cy_start(struct tty_struct *); -static void set_line_char(struct cyclades_port *); +static void cy_set_line_char(struct cyclades_port *, struct tty_struct *); static int cyz_issue_cmd(struct cyclades_card *, __u32, __u8, __u32); #ifdef CONFIG_ISA static unsigned detect_isa_irq(void __iomem *); #endif /* CONFIG_ISA */ -static int cyclades_get_proc_info(char *, char **, off_t, int, int *, void *); - #ifndef CONFIG_CYZ_INTR static void cyz_poll(unsigned long); @@ -878,8 +297,45 @@ static void cyz_rx_restart(unsigned long); static struct timer_list cyz_rx_full_timer[NR_PORTS]; #endif /* CONFIG_CYZ_INTR */ +static inline void cyy_writeb(struct cyclades_port *port, u32 reg, u8 val) +{ + struct cyclades_card *card = port->card; + + cy_writeb(port->u.cyy.base_addr + (reg << card->bus_index), val); +} + +static inline u8 cyy_readb(struct cyclades_port *port, u32 reg) +{ + struct cyclades_card *card = port->card; + + return readb(port->u.cyy.base_addr + (reg << card->bus_index)); +} + +static inline bool cy_is_Z(struct cyclades_card *card) +{ + return card->num_chips == (unsigned int)-1; +} + +static inline bool __cyz_fpga_loaded(struct RUNTIME_9060 __iomem *ctl_addr) +{ + return readl(&ctl_addr->init_ctrl) & (1 << 17); +} + +static inline bool cyz_fpga_loaded(struct cyclades_card *card) +{ + return __cyz_fpga_loaded(card->ctl_addr.p9060); +} + +static inline bool cyz_is_loaded(struct cyclades_card *card) +{ + struct FIRM_ID __iomem *fw_id = card->base_addr + ID_ADDRESS; + + return (card->hw_ver == ZO_V1 || cyz_fpga_loaded(card)) && + readl(&fw_id->signature) == ZFIRM_ID; +} + 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) { @@ -895,7 +351,7 @@ static inline int serial_paranoia_check(struct cyclades_port *info, } #endif return 0; -} /* serial_paranoia_check */ +} /***********************************************************/ /********* Start of block of Cyclom-Y specific code ********/ @@ -907,15 +363,15 @@ static inline int serial_paranoia_check(struct cyclades_port *info, This function is only called from inside spinlock-protected code. */ -static int cyy_issue_cmd(void __iomem * base_addr, u_char cmd, int index) +static int __cyy_issue_cmd(void __iomem *base_addr, u8 cmd, int index) { + void __iomem *ccr = base_addr + (CyCCR << index); unsigned int i; /* Check to see that the previous command has completed */ for (i = 0; i < 100; i++) { - if (readb(base_addr + (CyCCR << index)) == 0) { + if (readb(ccr) == 0) break; - } udelay(10L); } /* if the CCR never cleared, the previous command @@ -924,14 +380,20 @@ static int cyy_issue_cmd(void __iomem * base_addr, u_char cmd, int index) return -1; /* Issue the new command */ - cy_writeb(base_addr + (CyCCR << index), cmd); + cy_writeb(ccr, cmd); return 0; -} /* cyy_issue_cmd */ +} + +static inline int cyy_issue_cmd(struct cyclades_port *port, u8 cmd) +{ + return __cyy_issue_cmd(port->u.cyy.base_addr, cmd, + port->card->bus_index); +} #ifdef CONFIG_ISA /* ISA interrupt detection code */ -static unsigned detect_isa_irq(void __iomem * address) +static unsigned detect_isa_irq(void __iomem *address) { int irq; unsigned long irqs, flags; @@ -947,12 +409,12 @@ static unsigned detect_isa_irq(void __iomem * address) irqs = probe_irq_on(); /* Wait ... */ - udelay(5000L); + msleep(5); /* Enable the Tx interrupts on the CD1400 */ local_irq_save(flags); cy_writeb(address + (CyCAR << index), 0); - cyy_issue_cmd(address, CyCHAN_CTL | CyENB_XMTR, index); + __cyy_issue_cmd(address, CyCHAN_CTL | CyENB_XMTR, index); cy_writeb(address + (CyCAR << index), 0); cy_writeb(address + (CySRER << index), @@ -960,7 +422,7 @@ static unsigned detect_isa_irq(void __iomem * address) local_irq_restore(flags); /* Wait ... */ - udelay(5000L); + msleep(5); /* Check which interrupt is in use */ irq = probe_irq_off(irqs); @@ -985,39 +447,35 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip, { struct cyclades_port *info; struct tty_struct *tty; - int char_count; - int j, len, index = cinfo->bus_index; - int save_xir, channel, save_car; - char data; + int len, index = cinfo->bus_index; + u8 ivr, save_xir, channel, save_car, data, char_count; #ifdef CY_DEBUG_INTERRUPTS printk(KERN_DEBUG "cyy_interrupt: rcvd intr, chip %d\n", chip); #endif /* determine the channel & change to that context */ - spin_lock(&cinfo->card_lock); - save_xir = (u_char) readb(base_addr + (CyRIR << index)); - channel = (u_short) (save_xir & CyIRChannel); + save_xir = readb(base_addr + (CyRIR << index)); + channel = save_xir & CyIRChannel; info = &cinfo->ports[channel + chip * 4]; - save_car = readb(base_addr + (CyCAR << index)); - cy_writeb(base_addr + (CyCAR << index), save_xir); + save_car = cyy_readb(info, CyCAR); + cyy_writeb(info, CyCAR, save_xir); + ivr = cyy_readb(info, CyRIVR) & CyIVRMask; + tty = tty_port_tty_get(&info->port); /* if there is nowhere to put the data, discard it */ - if (info->tty == NULL) { - j = (readb(base_addr + (CyRIVR << index)) & CyIVRMask); - if (j == CyIVRRxEx) { /* exception */ - data = readb(base_addr + (CyRDSR << index)); + if (tty == NULL) { + if (ivr == CyIVRRxEx) { /* exception */ + data = cyy_readb(info, CyRDSR); } else { /* normal character reception */ - char_count = readb(base_addr + (CyRDCR << index)); + char_count = cyy_readb(info, CyRDCR); while (char_count--) - data = readb(base_addr + (CyRDSR << index)); + data = cyy_readb(info, CyRDSR); } goto end; } /* there is an open port for this data */ - tty = info->tty; - j = readb(base_addr + (CyRIVR << index)) & CyIVRMask; - if (j == CyIVRRxEx) { /* exception */ - data = readb(base_addr + (CyRDSR << index)); + if (ivr == CyIVRRxEx) { /* exception */ + data = cyy_readb(info, CyRDSR); /* For statistics only */ if (data & CyBREAK) @@ -1031,29 +489,29 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip, if (data & info->ignore_status_mask) { info->icount.rx++; - spin_unlock(&cinfo->card_lock); + tty_kref_put(tty); return; } if (tty_buffer_request_room(tty, 1)) { if (data & info->read_status_mask) { if (data & CyBREAK) { tty_insert_flip_char(tty, - readb(base_addr + (CyRDSR << - index)), TTY_BREAK); + cyy_readb(info, CyRDSR), + TTY_BREAK); info->icount.rx++; - if (info->flags & ASYNC_SAK) + if (info->port.flags & ASYNC_SAK) do_SAK(tty); } else if (data & CyFRAME) { - tty_insert_flip_char( tty, - readb(base_addr + (CyRDSR << - index)), TTY_FRAME); + tty_insert_flip_char(tty, + cyy_readb(info, CyRDSR), + TTY_FRAME); info->icount.rx++; info->idle_stats.frame_errs++; } else if (data & CyPARITY) { /* Pieces of seven... */ tty_insert_flip_char(tty, - readb(base_addr + (CyRDSR << - index)), TTY_PARITY); + cyy_readb(info, CyRDSR), + TTY_PARITY); info->icount.rx++; info->idle_stats.parity_errs++; } else if (data & CyOVERRUN) { @@ -1065,8 +523,8 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip, the next incoming character. */ tty_insert_flip_char(tty, - readb(base_addr + (CyRDSR << - index)), TTY_FRAME); + cyy_readb(info, CyRDSR), + TTY_FRAME); info->icount.rx++; info->idle_stats.overruns++; /* These two conditions may imply */ @@ -1090,7 +548,7 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip, } } else { /* normal character reception */ /* load # chars available from the chip */ - char_count = readb(base_addr + (CyRDCR << index)); + char_count = cyy_readb(info, CyRDCR); #ifdef CY_ENABLE_MONITORING ++info->mon.int_count; @@ -1101,7 +559,7 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip, #endif len = tty_buffer_request_room(tty, char_count); while (len--) { - data = readb(base_addr + (CyRDSR << index)); + data = cyy_readb(info, CyRDSR); tty_insert_flip_char(tty, data, TTY_NORMAL); info->idle_stats.recv_bytes++; info->icount.rx++; @@ -1112,20 +570,20 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip, info->idle_stats.recv_idle = jiffies; } tty_schedule_flip(tty); + tty_kref_put(tty); end: /* end of service */ - cy_writeb(base_addr + (CyRIR << index), save_xir & 0x3f); - cy_writeb(base_addr + (CyCAR << index), save_car); - spin_unlock(&cinfo->card_lock); + cyy_writeb(info, CyRIR, save_xir & 0x3f); + cyy_writeb(info, CyCAR, save_car); } -static void cyy_chip_tx(struct cyclades_card *cinfo, int chip, +static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip, void __iomem *base_addr) { struct cyclades_port *info; - int char_count; - int outch; - int save_xir, channel, save_car, index = cinfo->bus_index; + struct tty_struct *tty; + int char_count, index = cinfo->bus_index; + u8 save_xir, channel, save_car, outch; /* Since we only get here when the transmit buffer is empty, we know we can always stuff a dozen @@ -1135,9 +593,8 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, int chip, #endif /* determine the channel & change to that context */ - spin_lock(&cinfo->card_lock); - save_xir = (u_char) readb(base_addr + (CyTIR << index)); - channel = (u_short) (save_xir & CyIRChannel); + save_xir = readb(base_addr + (CyTIR << index)); + channel = save_xir & CyIRChannel; save_car = readb(base_addr + (CyCAR << index)); cy_writeb(base_addr + (CyCAR << index), save_xir); @@ -1148,9 +605,9 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, int chip, goto end; } info = &cinfo->ports[channel + chip * 4]; - if (info->tty == NULL) { - cy_writeb(base_addr + (CySRER << index), - readb(base_addr + (CySRER << index)) & ~CyTxRdy); + tty = tty_port_tty_get(&info->port); + if (tty == NULL) { + cyy_writeb(info, CySRER, cyy_readb(info, CySRER) & ~CyTxRdy); goto end; } @@ -1159,7 +616,7 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, int chip, if (info->x_char) { /* send special char */ outch = info->x_char; - cy_writeb(base_addr + (CyTDR << index), outch); + cyy_writeb(info, CyTDR, outch); char_count--; info->icount.tx++; info->x_char = 0; @@ -1167,14 +624,14 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, int chip, if (info->breakon || info->breakoff) { if (info->breakon) { - cy_writeb(base_addr + (CyTDR << index), 0); - cy_writeb(base_addr + (CyTDR << index), 0x81); + cyy_writeb(info, CyTDR, 0); + cyy_writeb(info, CyTDR, 0x81); info->breakon = 0; char_count -= 2; } if (info->breakoff) { - cy_writeb(base_addr + (CyTDR << index), 0); - cy_writeb(base_addr + (CyTDR << index), 0x83); + cyy_writeb(info, CyTDR, 0); + cyy_writeb(info, CyTDR, 0x83); info->breakoff = 0; char_count -= 2; } @@ -1182,27 +639,23 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, int chip, while (char_count-- > 0) { if (!info->xmit_cnt) { - if (readb(base_addr + (CySRER << index)) & CyTxMpty) { - cy_writeb(base_addr + (CySRER << index), - readb(base_addr + (CySRER << index)) & - ~CyTxMpty); + if (cyy_readb(info, CySRER) & CyTxMpty) { + cyy_writeb(info, CySRER, + cyy_readb(info, CySRER) & ~CyTxMpty); } else { - cy_writeb(base_addr + (CySRER << index), - (readb(base_addr + (CySRER << index)) & - ~CyTxRdy) | CyTxMpty); + cyy_writeb(info, CySRER, CyTxMpty | + (cyy_readb(info, CySRER) & ~CyTxRdy)); } goto done; } - if (info->xmit_buf == NULL) { - cy_writeb(base_addr + (CySRER << index), - readb(base_addr + (CySRER << index)) & - ~CyTxRdy); + if (info->port.xmit_buf == NULL) { + cyy_writeb(info, CySRER, + cyy_readb(info, CySRER) & ~CyTxRdy); goto done; } - if (info->tty->stopped || info->tty->hw_stopped) { - cy_writeb(base_addr + (CySRER << index), - readb(base_addr + (CySRER << index)) & - ~CyTxRdy); + if (tty->stopped || tty->hw_stopped) { + cyy_writeb(info, CySRER, + cyy_readb(info, CySRER) & ~CyTxRdy); goto done; } /* Because the Embedded Transmit Commands have been enabled, @@ -1214,20 +667,20 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, int chip, * character. This is necessary because there may not be room * for the two chars needed to send a NULL.) */ - outch = info->xmit_buf[info->xmit_tail]; + outch = info->port.xmit_buf[info->xmit_tail]; if (outch) { info->xmit_cnt--; info->xmit_tail = (info->xmit_tail + 1) & (SERIAL_XMIT_SIZE - 1); - cy_writeb(base_addr + (CyTDR << index), outch); + cyy_writeb(info, CyTDR, outch); info->icount.tx++; } else { if (char_count > 1) { info->xmit_cnt--; info->xmit_tail = (info->xmit_tail + 1) & (SERIAL_XMIT_SIZE - 1); - cy_writeb(base_addr + (CyTDR << index), outch); - cy_writeb(base_addr + (CyTDR << index), 0); + cyy_writeb(info, CyTDR, outch); + cyy_writeb(info, CyTDR, 0); info->icount.tx++; char_count--; } @@ -1235,33 +688,34 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, int chip, } done: - tty_wakeup(info->tty); + tty_wakeup(tty); + tty_kref_put(tty); end: /* end of service */ - cy_writeb(base_addr + (CyTIR << index), save_xir & 0x3f); - cy_writeb(base_addr + (CyCAR << index), save_car); - spin_unlock(&cinfo->card_lock); + cyy_writeb(info, CyTIR, save_xir & 0x3f); + cyy_writeb(info, CyCAR, save_car); } static void cyy_chip_modem(struct cyclades_card *cinfo, int chip, void __iomem *base_addr) { struct cyclades_port *info; - int mdm_change, mdm_status; - int save_xir, channel, save_car, index = cinfo->bus_index; + struct tty_struct *tty; + int index = cinfo->bus_index; + u8 save_xir, channel, save_car, mdm_change, mdm_status; /* determine the channel & change to that context */ - spin_lock(&cinfo->card_lock); - save_xir = (u_char) readb(base_addr + (CyMIR << index)); - channel = (u_short) (save_xir & CyIRChannel); + save_xir = readb(base_addr + (CyMIR << index)); + channel = save_xir & CyIRChannel; info = &cinfo->ports[channel + chip * 4]; - save_car = readb(base_addr + (CyCAR << index)); - cy_writeb(base_addr + (CyCAR << index), save_xir); + save_car = cyy_readb(info, CyCAR); + cyy_writeb(info, CyCAR, save_xir); - mdm_change = readb(base_addr + (CyMISR << index)); - mdm_status = readb(base_addr + (CyMSVR1 << index)); + mdm_change = cyy_readb(info, CyMISR); + mdm_status = cyy_readb(info, CyMSVR1); - if (!info->tty) + tty = tty_port_tty_get(&info->port); + if (!tty) goto end; if (mdm_change & CyANY_DELTA) { @@ -1275,35 +729,32 @@ static void cyy_chip_modem(struct cyclades_card *cinfo, int chip, if (mdm_change & CyRI) info->icount.rng++; - wake_up_interruptible(&info->delta_msr_wait); + wake_up_interruptible(&info->port.delta_msr_wait); } - if ((mdm_change & CyDCD) && (info->flags & ASYNC_CHECK_CD)) { - if (!(mdm_status & CyDCD)) { - tty_hangup(info->tty); - info->flags &= ~ASYNC_NORMAL_ACTIVE; - } - wake_up_interruptible(&info->open_wait); + if ((mdm_change & CyDCD) && (info->port.flags & ASYNC_CHECK_CD)) { + if (mdm_status & CyDCD) + wake_up_interruptible(&info->port.open_wait); + else + tty_hangup(tty); } - if ((mdm_change & CyCTS) && (info->flags & ASYNC_CTS_FLOW)) { - if (info->tty->hw_stopped) { + if ((mdm_change & CyCTS) && (info->port.flags & ASYNC_CTS_FLOW)) { + if (tty->hw_stopped) { if (mdm_status & CyCTS) { /* cy_start isn't used because... !!! */ - info->tty->hw_stopped = 0; - cy_writeb(base_addr + (CySRER << index), - readb(base_addr + (CySRER << index)) | - CyTxRdy); - tty_wakeup(info->tty); + tty->hw_stopped = 0; + cyy_writeb(info, CySRER, + cyy_readb(info, CySRER) | CyTxRdy); + tty_wakeup(tty); } } else { if (!(mdm_status & CyCTS)) { /* cy_stop isn't used because ... !!! */ - info->tty->hw_stopped = 1; - cy_writeb(base_addr + (CySRER << index), - readb(base_addr + (CySRER << index)) & - ~CyTxRdy); + tty->hw_stopped = 1; + cyy_writeb(info, CySRER, + cyy_readb(info, CySRER) & ~CyTxRdy); } } } @@ -1311,11 +762,11 @@ static void cyy_chip_modem(struct cyclades_card *cinfo, int chip, } if (mdm_change & CyRI) { }*/ + tty_kref_put(tty); end: /* end of service */ - cy_writeb(base_addr + (CyMIR << index), save_xir & 0x3f); - cy_writeb(base_addr + (CyCAR << index), save_car); - spin_unlock(&cinfo->card_lock); + cyy_writeb(info, CyMIR, save_xir & 0x3f); + cyy_writeb(info, CyCAR, save_car); } /* The real interrupt service routine is called @@ -1327,14 +778,13 @@ static irqreturn_t cyy_interrupt(int irq, void *dev_id) int status; struct cyclades_card *cinfo = dev_id; void __iomem *base_addr, *card_base_addr; - int chip; + unsigned int chip, too_many, had_work; int index; - int too_many; - int had_work; if (unlikely(cinfo == NULL)) { #ifdef CY_DEBUG_INTERRUPTS - printk(KERN_DEBUG "cyy_interrupt: spurious interrupt %d\n",irq); + printk(KERN_DEBUG "cyy_interrupt: spurious interrupt %d\n", + irq); #endif return IRQ_NONE; /* spurious interrupt */ } @@ -1367,12 +817,14 @@ static irqreturn_t cyy_interrupt(int irq, void *dev_id) */ if (1000 < too_many++) break; + spin_lock(&cinfo->card_lock); if (status & CySRReceive) /* rx intr */ cyy_chip_rx(cinfo, chip, base_addr); if (status & CySRTransmit) /* tx intr */ cyy_chip_tx(cinfo, chip, base_addr); if (status & CySRModem) /* modem intr */ cyy_chip_modem(cinfo, chip, base_addr); + spin_unlock(&cinfo->card_lock); } } } while (had_work); @@ -1385,35 +837,74 @@ static irqreturn_t cyy_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } /* cyy_interrupt */ +static void cyy_change_rts_dtr(struct cyclades_port *info, unsigned int set, + unsigned int clear) +{ + struct cyclades_card *card = info->card; + int channel = info->line - card->first_line; + u32 rts, dtr, msvrr, msvrd; + + channel &= 0x03; + + if (info->rtsdtr_inv) { + msvrr = CyMSVR2; + msvrd = CyMSVR1; + rts = CyDTR; + dtr = CyRTS; + } else { + msvrr = CyMSVR1; + msvrd = CyMSVR2; + rts = CyRTS; + dtr = CyDTR; + } + if (set & TIOCM_RTS) { + cyy_writeb(info, CyCAR, channel); + cyy_writeb(info, msvrr, rts); + } + if (clear & TIOCM_RTS) { + cyy_writeb(info, CyCAR, channel); + cyy_writeb(info, msvrr, ~rts); + } + if (set & TIOCM_DTR) { + cyy_writeb(info, CyCAR, channel); + cyy_writeb(info, msvrd, dtr); +#ifdef CY_DEBUG_DTR + printk(KERN_DEBUG "cyc:set_modem_info raising DTR\n"); + printk(KERN_DEBUG " status: 0x%x, 0x%x\n", + cyy_readb(info, CyMSVR1), + cyy_readb(info, CyMSVR2)); +#endif + } + if (clear & TIOCM_DTR) { + cyy_writeb(info, CyCAR, channel); + cyy_writeb(info, msvrd, ~dtr); +#ifdef CY_DEBUG_DTR + printk(KERN_DEBUG "cyc:set_modem_info dropping DTR\n"); + printk(KERN_DEBUG " status: 0x%x, 0x%x\n", + cyy_readb(info, CyMSVR1), + cyy_readb(info, CyMSVR2)); +#endif + } +} + /***********************************************************/ /********* End of block of Cyclom-Y specific code **********/ -/******** Start of block of Cyclades-Z specific code *********/ +/******** Start of block of Cyclades-Z specific code *******/ /***********************************************************/ static int cyz_fetch_msg(struct cyclades_card *cinfo, - __u32 * channel, __u8 * cmd, __u32 * param) + __u32 *channel, __u8 *cmd, __u32 *param) { - struct FIRM_ID __iomem *firm_id; - struct ZFW_CTRL __iomem *zfw_ctrl; - struct BOARD_CTRL __iomem *board_ctrl; + struct BOARD_CTRL __iomem *board_ctrl = cinfo->board_ctrl; unsigned long loc_doorbell; - firm_id = cinfo->base_addr + ID_ADDRESS; - if (!ISZLOADED(*cinfo)) { - return -1; - } - zfw_ctrl = cinfo->base_addr + (readl(&firm_id->zfwctrl_addr) & 0xfffff); - board_ctrl = &zfw_ctrl->board_ctrl; - - loc_doorbell = readl(&((struct RUNTIME_9060 __iomem *) - (cinfo->ctl_addr))->loc_doorbell); + loc_doorbell = readl(&cinfo->ctl_addr.p9060->loc_doorbell); if (loc_doorbell) { *cmd = (char)(0xff & loc_doorbell); *channel = readl(&board_ctrl->fwcmd_channel); *param = (__u32) readl(&board_ctrl->fwcmd_param); - cy_writel(&((struct RUNTIME_9060 __iomem *)(cinfo->ctl_addr))-> - loc_doorbell, 0xffffffff); + cy_writel(&cinfo->ctl_addr.p9060->loc_doorbell, 0xffffffff); return 1; } return 0; @@ -1423,26 +914,18 @@ static int cyz_issue_cmd(struct cyclades_card *cinfo, __u32 channel, __u8 cmd, __u32 param) { - struct FIRM_ID __iomem *firm_id; - struct ZFW_CTRL __iomem *zfw_ctrl; - struct BOARD_CTRL __iomem *board_ctrl; + struct BOARD_CTRL __iomem *board_ctrl = cinfo->board_ctrl; __u32 __iomem *pci_doorbell; - int index; + unsigned int index; - firm_id = cinfo->base_addr + ID_ADDRESS; - if (!ISZLOADED(*cinfo)) { + if (!cyz_is_loaded(cinfo)) return -1; - } - zfw_ctrl = cinfo->base_addr + (readl(&firm_id->zfwctrl_addr) & 0xfffff); - board_ctrl = &zfw_ctrl->board_ctrl; index = 0; - pci_doorbell = - &((struct RUNTIME_9060 __iomem *)(cinfo->ctl_addr))->pci_doorbell; + pci_doorbell = &cinfo->ctl_addr.p9060->pci_doorbell; while ((readl(pci_doorbell) & 0xff) != 0) { - if (index++ == 1000) { + if (index++ == 1000) return (int)(readl(pci_doorbell) & 0xff); - } udelay(50L); } cy_writel(&board_ctrl->hcmd_channel, channel); @@ -1452,13 +935,11 @@ cyz_issue_cmd(struct cyclades_card *cinfo, return 0; } /* cyz_issue_cmd */ -static void -cyz_handle_rx(struct cyclades_port *info, struct CH_CTRL __iomem *ch_ctrl, - struct BUF_CTRL __iomem *buf_ctrl) +static void cyz_handle_rx(struct cyclades_port *info, struct tty_struct *tty) { + struct BUF_CTRL __iomem *buf_ctrl = info->u.cyz.buf_ctrl; struct cyclades_card *cinfo = info->card; - struct tty_struct *tty = info->tty; - int char_count; + unsigned int char_count; int len; #ifdef BLOCKMOVE unsigned char *buf; @@ -1517,7 +998,8 @@ cyz_handle_rx(struct cyclades_port *info, struct CH_CTRL __iomem *ch_ctrl, while (len--) { data = readb(cinfo->base_addr + rx_bufaddr + new_rx_get); - new_rx_get = (new_rx_get + 1)& (rx_bufsize - 1); + new_rx_get = (new_rx_get + 1) & + (rx_bufsize - 1); tty_insert_flip_char(tty, data, TTY_NORMAL); info->idle_stats.recv_bytes++; info->icount.rx++; @@ -1531,7 +1013,7 @@ cyz_handle_rx(struct cyclades_port *info, struct CH_CTRL __iomem *ch_ctrl, char_count = rx_put - rx_get; else char_count = rx_put - rx_get + rx_bufsize; - if (char_count >= (int)readl(&buf_ctrl->rx_threshold) && + if (char_count >= readl(&buf_ctrl->rx_threshold) && !timer_pending(&cyz_rx_full_timer[ info->line])) mod_timer(&cyz_rx_full_timer[info->line], @@ -1545,14 +1027,12 @@ cyz_handle_rx(struct cyclades_port *info, struct CH_CTRL __iomem *ch_ctrl, } } -static void -cyz_handle_tx(struct cyclades_port *info, struct CH_CTRL __iomem *ch_ctrl, - struct BUF_CTRL __iomem *buf_ctrl) +static void cyz_handle_tx(struct cyclades_port *info, struct tty_struct *tty) { + struct BUF_CTRL __iomem *buf_ctrl = info->u.cyz.buf_ctrl; struct cyclades_card *cinfo = info->card; - struct tty_struct *tty = info->tty; - char data; - int char_count; + u8 data; + unsigned int char_count; #ifdef BLOCKMOVE int small_count; #endif @@ -1593,7 +1073,7 @@ cyz_handle_tx(struct cyclades_port *info, struct CH_CTRL __iomem *ch_ctrl, memcpy_toio((char *)(cinfo->base_addr + tx_bufaddr + tx_put), - &info->xmit_buf[info->xmit_tail], + &info->port.xmit_buf[info->xmit_tail], small_count); tx_put = (tx_put + small_count) & (tx_bufsize - 1); @@ -1605,7 +1085,7 @@ cyz_handle_tx(struct cyclades_port *info, struct CH_CTRL __iomem *ch_ctrl, } #else while (info->xmit_cnt && char_count) { - data = info->xmit_buf[info->xmit_tail]; + data = info->port.xmit_buf[info->xmit_tail]; info->xmit_cnt--; info->xmit_tail = (info->xmit_tail + 1) & (SERIAL_XMIT_SIZE - 1); @@ -1616,8 +1096,8 @@ cyz_handle_tx(struct cyclades_port *info, struct CH_CTRL __iomem *ch_ctrl, info->icount.tx++; } #endif -ztxdone: tty_wakeup(tty); +ztxdone: /* Update tx_put */ cy_writel(&buf_ctrl->tx_put, tx_put); } @@ -1625,37 +1105,24 @@ ztxdone: static void cyz_handle_cmd(struct cyclades_card *cinfo) { + struct BOARD_CTRL __iomem *board_ctrl = cinfo->board_ctrl; struct tty_struct *tty; struct cyclades_port *info; - static struct FIRM_ID __iomem *firm_id; - static struct ZFW_CTRL __iomem *zfw_ctrl; - static struct BOARD_CTRL __iomem *board_ctrl; - static struct CH_CTRL __iomem *ch_ctrl; - static struct BUF_CTRL __iomem *buf_ctrl; - __u32 channel; + __u32 channel, param, fw_ver; __u8 cmd; - __u32 param; - __u32 hw_ver, fw_ver; int special_count; int delta_count; - firm_id = cinfo->base_addr + ID_ADDRESS; - zfw_ctrl = cinfo->base_addr + (readl(&firm_id->zfwctrl_addr) & 0xfffff); - board_ctrl = &zfw_ctrl->board_ctrl; fw_ver = readl(&board_ctrl->fw_version); - hw_ver = readl(&((struct RUNTIME_9060 __iomem *)(cinfo->ctl_addr))-> - mail_box_0); while (cyz_fetch_msg(cinfo, &channel, &cmd, ¶m) == 1) { special_count = 0; delta_count = 0; info = &cinfo->ports[channel]; - if ((tty = info->tty) == NULL) + tty = tty_port_tty_get(&info->port); + if (tty == NULL) continue; - ch_ctrl = &(zfw_ctrl->ch_ctrl[channel]); - buf_ctrl = &(zfw_ctrl->buf_ctrl[channel]); - switch (cmd) { case C_CM_PR_ERROR: tty_insert_flip_char(tty, 0, TTY_PARITY); @@ -1675,16 +1142,13 @@ static void cyz_handle_cmd(struct cyclades_card *cinfo) case C_CM_MDCD: info->icount.dcd++; delta_count++; - if (info->flags & ASYNC_CHECK_CD) { - if ((fw_ver > 241 ? ((u_long) param) : - readl(&ch_ctrl->rs_status)) & - C_RS_DCD) { - wake_up_interruptible(&info->open_wait); - } else { - tty_hangup(info->tty); - wake_up_interruptible(&info->open_wait); - info->flags &= ~ASYNC_NORMAL_ACTIVE; - } + if (info->port.flags & ASYNC_CHECK_CD) { + u32 dcd = fw_ver > 241 ? param : + readl(&info->u.cyz.ch_ctrl->rs_status); + if (dcd & C_RS_DCD) + wake_up_interruptible(&info->port.open_wait); + else + tty_hangup(tty); } break; case C_CM_MCTS: @@ -1713,7 +1177,7 @@ static void cyz_handle_cmd(struct cyclades_card *cinfo) printk(KERN_DEBUG "cyz_interrupt: rcvd intr, card %d, " "port %ld\n", info->card, channel); #endif - cyz_handle_rx(info, ch_ctrl, buf_ctrl); + cyz_handle_rx(info, tty); break; case C_CM_TXBEMPTY: case C_CM_TXLOWWM: @@ -1723,7 +1187,7 @@ static void cyz_handle_cmd(struct cyclades_card *cinfo) printk(KERN_DEBUG "cyz_interrupt: xmit intr, card %d, " "port %ld\n", info->card, channel); #endif - cyz_handle_tx(info, ch_ctrl, buf_ctrl); + cyz_handle_tx(info, tty); break; #endif /* CONFIG_CYZ_INTR */ case C_CM_FATAL: @@ -1733,9 +1197,10 @@ static void cyz_handle_cmd(struct cyclades_card *cinfo) break; } if (delta_count) - wake_up_interruptible(&info->delta_msr_wait); + wake_up_interruptible(&info->port.delta_msr_wait); if (special_count) tty_schedule_flip(tty); + tty_kref_put(tty); } } @@ -1744,14 +1209,7 @@ static irqreturn_t cyz_interrupt(int irq, void *dev_id) { struct cyclades_card *cinfo = dev_id; - if (unlikely(cinfo == NULL)) { -#ifdef CY_DEBUG_INTERRUPTS - printk(KERN_DEBUG "cyz_interrupt: spurious interrupt %d\n",irq); -#endif - return IRQ_NONE; /* spurious interrupt */ - } - - if (unlikely(!ISZLOADED(*cinfo))) { + if (unlikely(!cyz_is_loaded(cinfo))) { #ifdef CY_DEBUG_INTERRUPTS printk(KERN_DEBUG "cyz_interrupt: board not yet loaded " "(IRQ%d).\n", irq); @@ -1788,31 +1246,19 @@ static void cyz_poll(unsigned long arg) { struct cyclades_card *cinfo; struct cyclades_port *info; - struct tty_struct *tty; - struct FIRM_ID __iomem *firm_id; - struct ZFW_CTRL __iomem *zfw_ctrl; - struct BOARD_CTRL __iomem *board_ctrl; - struct CH_CTRL __iomem *ch_ctrl; - struct BUF_CTRL __iomem *buf_ctrl; unsigned long expires = jiffies + HZ; - int card, port; + unsigned int port, card; for (card = 0; card < NR_CARDS; card++) { cinfo = &cy_card[card]; - if (!IS_CYC_Z(*cinfo)) + if (!cy_is_Z(cinfo)) continue; - if (!ISZLOADED(*cinfo)) + if (!cyz_is_loaded(cinfo)) continue; - firm_id = cinfo->base_addr + ID_ADDRESS; - zfw_ctrl = cinfo->base_addr + - (readl(&firm_id->zfwctrl_addr) & 0xfffff); - board_ctrl = &(zfw_ctrl->board_ctrl); - /* Skip first polling cycle to avoid racing conditions with the FW */ if (!cinfo->intr_enabled) { - cinfo->nports = (int)readl(&board_ctrl->n_channel); cinfo->intr_enabled = 1; continue; } @@ -1820,14 +1266,17 @@ static void cyz_poll(unsigned long arg) cyz_handle_cmd(cinfo); for (port = 0; port < cinfo->nports; port++) { + struct tty_struct *tty; + info = &cinfo->ports[port]; - tty = info->tty; - ch_ctrl = &(zfw_ctrl->ch_ctrl[port]); - buf_ctrl = &(zfw_ctrl->buf_ctrl[port]); + tty = tty_port_tty_get(&info->port); + /* OK to pass NULL to the handle functions below. + They need to drop the data in that case. */ if (!info->throttle) - cyz_handle_rx(info, ch_ctrl, buf_ctrl); - cyz_handle_tx(info, ch_ctrl, buf_ctrl); + cyz_handle_rx(info, tty); + cyz_handle_tx(info, tty); + tty_kref_put(tty); } /* poll every 'cyz_polling_cycle' period */ expires = jiffies + cyz_polling_cycle; @@ -1843,13 +1292,12 @@ static void cyz_poll(unsigned long arg) /* This is called whenever a port becomes active; interrupts are enabled and DTR & RTS are turned on. */ -static int startup(struct cyclades_port *info) +static int cy_startup(struct cyclades_port *info, struct tty_struct *tty) { struct cyclades_card *card; unsigned long flags; int retval = 0; - void __iomem *base_addr; - int chip, channel, index; + int channel; unsigned long page; card = info->card; @@ -1861,118 +1309,68 @@ static int startup(struct cyclades_port *info) spin_lock_irqsave(&card->card_lock, flags); - if (info->flags & ASYNC_INITIALIZED) { - free_page(page); + if (info->port.flags & ASYNC_INITIALIZED) goto errout; - } if (!info->type) { - if (info->tty) { - set_bit(TTY_IO_ERROR, &info->tty->flags); - } - free_page(page); + set_bit(TTY_IO_ERROR, &tty->flags); goto errout; } - if (info->xmit_buf) + if (info->port.xmit_buf) free_page(page); else - info->xmit_buf = (unsigned char *)page; + info->port.xmit_buf = (unsigned char *)page; spin_unlock_irqrestore(&card->card_lock, flags); - set_line_char(info); + cy_set_line_char(info, tty); - if (!IS_CYC_Z(*card)) { - chip = channel >> 2; + if (!cy_is_Z(card)) { channel &= 0x03; - index = card->bus_index; - base_addr = card->base_addr + (cy_chip_offset[chip] << index); -#ifdef CY_DEBUG_OPEN - printk(KERN_DEBUG "cyc startup card %d, chip %d, channel %d, " - "base_addr %p\n", - card, chip, channel, base_addr); -#endif spin_lock_irqsave(&card->card_lock, flags); - cy_writeb(base_addr + (CyCAR << index), (u_char) channel); + cyy_writeb(info, CyCAR, channel); - cy_writeb(base_addr + (CyRTPR << index), + cyy_writeb(info, CyRTPR, (info->default_timeout ? info->default_timeout : 0x02)); /* 10ms rx timeout */ - cyy_issue_cmd(base_addr, CyCHAN_CTL | CyENB_RCVR | CyENB_XMTR, - index); - - cy_writeb(base_addr + (CyCAR << index), (u_char) channel); - cy_writeb(base_addr + (CyMSVR1 << index), CyRTS); - cy_writeb(base_addr + (CyMSVR2 << index), CyDTR); - -#ifdef CY_DEBUG_DTR - printk(KERN_DEBUG "cyc:startup raising DTR\n"); - printk(KERN_DEBUG " status: 0x%x, 0x%x\n", - readb(base_addr + (CyMSVR1 << index)), - readb(base_addr + (CyMSVR2 << index))); -#endif - - cy_writeb(base_addr + (CySRER << index), - readb(base_addr + (CySRER << index)) | CyRxData); - info->flags |= ASYNC_INITIALIZED; - - if (info->tty) { - clear_bit(TTY_IO_ERROR, &info->tty->flags); - } - info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; - info->breakon = info->breakoff = 0; - memset((char *)&info->idle_stats, 0, sizeof(info->idle_stats)); - info->idle_stats.in_use = - info->idle_stats.recv_idle = - info->idle_stats.xmit_idle = jiffies; + cyy_issue_cmd(info, CyCHAN_CTL | CyENB_RCVR | CyENB_XMTR); - spin_unlock_irqrestore(&card->card_lock, flags); + cyy_change_rts_dtr(info, TIOCM_RTS | TIOCM_DTR, 0); + cyy_writeb(info, CySRER, cyy_readb(info, CySRER) | CyRxData); } else { - struct FIRM_ID __iomem *firm_id; - struct ZFW_CTRL __iomem *zfw_ctrl; - struct BOARD_CTRL __iomem *board_ctrl; - struct CH_CTRL __iomem *ch_ctrl; - - base_addr = card->base_addr; + struct CH_CTRL __iomem *ch_ctrl = info->u.cyz.ch_ctrl; - firm_id = base_addr + ID_ADDRESS; - if (!ISZLOADED(*card)) { + if (!cyz_is_loaded(card)) return -ENODEV; - } - - zfw_ctrl = card->base_addr + - (readl(&firm_id->zfwctrl_addr) & 0xfffff); - board_ctrl = &zfw_ctrl->board_ctrl; - ch_ctrl = zfw_ctrl->ch_ctrl; #ifdef CY_DEBUG_OPEN printk(KERN_DEBUG "cyc startup Z card %d, channel %d, " - "base_addr %p\n", card, channel, base_addr); + "base_addr %p\n", card, channel, card->base_addr); #endif spin_lock_irqsave(&card->card_lock, flags); - cy_writel(&ch_ctrl[channel].op_mode, C_CH_ENABLE); + cy_writel(&ch_ctrl->op_mode, C_CH_ENABLE); #ifdef Z_WAKE #ifdef CONFIG_CYZ_INTR - cy_writel(&ch_ctrl[channel].intr_enable, + cy_writel(&ch_ctrl->intr_enable, C_IN_TXBEMPTY | C_IN_TXLOWWM | C_IN_RXHIWM | C_IN_RXNNDT | C_IN_IOCTLW | C_IN_MDCD); #else - cy_writel(&ch_ctrl[channel].intr_enable, + cy_writel(&ch_ctrl->intr_enable, C_IN_IOCTLW | C_IN_MDCD); #endif /* CONFIG_CYZ_INTR */ #else #ifdef CONFIG_CYZ_INTR - cy_writel(&ch_ctrl[channel].intr_enable, + cy_writel(&ch_ctrl->intr_enable, C_IN_TXBEMPTY | C_IN_TXLOWWM | C_IN_RXHIWM | C_IN_RXNNDT | C_IN_MDCD); #else - cy_writel(&ch_ctrl[channel].intr_enable, C_IN_MDCD); + cy_writel(&ch_ctrl->intr_enable, C_IN_MDCD); #endif /* CONFIG_CYZ_INTR */ #endif /* Z_WAKE */ @@ -1991,33 +1389,22 @@ static int startup(struct cyclades_port *info) /* set timeout !!! */ /* set RTS and DTR !!! */ - cy_writel(&ch_ctrl[channel].rs_control, - readl(&ch_ctrl[channel].rs_control) | C_RS_RTS | - C_RS_DTR); - retval = cyz_issue_cmd(card, channel, C_CM_IOCTLM, 0L); - if (retval != 0) { - printk(KERN_ERR "cyc:startup(3) retval on ttyC%d was " - "%x\n", info->line, retval); - } -#ifdef CY_DEBUG_DTR - printk(KERN_DEBUG "cyc:startup raising Z DTR\n"); -#endif + tty_port_raise_dtr_rts(&info->port); /* enable send, recv, modem !!! */ + } - info->flags |= ASYNC_INITIALIZED; - if (info->tty) { - clear_bit(TTY_IO_ERROR, &info->tty->flags); - } - info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; - info->breakon = info->breakoff = 0; - memset((char *)&info->idle_stats, 0, sizeof(info->idle_stats)); - info->idle_stats.in_use = - info->idle_stats.recv_idle = - info->idle_stats.xmit_idle = jiffies; + info->port.flags |= ASYNC_INITIALIZED; - spin_unlock_irqrestore(&card->card_lock, flags); - } + clear_bit(TTY_IO_ERROR, &tty->flags); + info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; + info->breakon = info->breakoff = 0; + memset((char *)&info->idle_stats, 0, sizeof(info->idle_stats)); + info->idle_stats.in_use = + info->idle_stats.recv_idle = + info->idle_stats.xmit_idle = jiffies; + + spin_unlock_irqrestore(&card->card_lock, flags); #ifdef CY_DEBUG_OPEN printk(KERN_DEBUG "cyc startup done\n"); @@ -2026,28 +1413,20 @@ static int startup(struct cyclades_port *info) errout: spin_unlock_irqrestore(&card->card_lock, flags); + free_page(page); return retval; } /* startup */ static void start_xmit(struct cyclades_port *info) { - struct cyclades_card *card; + struct cyclades_card *card = info->card; unsigned long flags; - void __iomem *base_addr; - int chip, channel, index; - - card = info->card; - channel = info->line - card->first_line; - if (!IS_CYC_Z(*card)) { - chip = channel >> 2; - channel &= 0x03; - index = card->bus_index; - base_addr = card->base_addr + (cy_chip_offset[chip] << index); + int channel = info->line - card->first_line; + if (!cy_is_Z(card)) { spin_lock_irqsave(&card->card_lock, flags); - cy_writeb(base_addr + (CyCAR << index), channel); - cy_writeb(base_addr + (CySRER << index), - readb(base_addr + (CySRER << index)) | CyTxRdy); + cyy_writeb(info, CyCAR, channel & 0x03); + cyy_writeb(info, CySRER, cyy_readb(info, CySRER) | CyTxRdy); spin_unlock_irqrestore(&card->card_lock, flags); } else { #ifdef CONFIG_CYZ_INTR @@ -2070,113 +1449,62 @@ static void start_xmit(struct cyclades_port *info) * This routine shuts down a serial port; interrupts are disabled, * and DTR is dropped if the hangup on close termio flag is on. */ -static void shutdown(struct cyclades_port *info) +static void cy_shutdown(struct cyclades_port *info, struct tty_struct *tty) { struct cyclades_card *card; unsigned long flags; - void __iomem *base_addr; - int chip, channel, index; + int channel; - if (!(info->flags & ASYNC_INITIALIZED)) { + if (!(info->port.flags & ASYNC_INITIALIZED)) return; - } card = info->card; channel = info->line - card->first_line; - if (!IS_CYC_Z(*card)) { - chip = channel >> 2; - channel &= 0x03; - index = card->bus_index; - base_addr = card->base_addr + (cy_chip_offset[chip] << index); - -#ifdef CY_DEBUG_OPEN - printk(KERN_DEBUG "cyc shutdown Y card %d, chip %d, " - "channel %d, base_addr %p\n", - card, chip, channel, base_addr); -#endif - + if (!cy_is_Z(card)) { spin_lock_irqsave(&card->card_lock, flags); /* Clear delta_msr_wait queue to avoid mem leaks. */ - wake_up_interruptible(&info->delta_msr_wait); + wake_up_interruptible(&info->port.delta_msr_wait); - if (info->xmit_buf) { + if (info->port.xmit_buf) { unsigned char *temp; - temp = info->xmit_buf; - info->xmit_buf = NULL; + temp = info->port.xmit_buf; + info->port.xmit_buf = NULL; free_page((unsigned long)temp); } - cy_writeb(base_addr + (CyCAR << index), (u_char) channel); - if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) { - cy_writeb(base_addr + (CyMSVR1 << index), ~CyRTS); - cy_writeb(base_addr + (CyMSVR2 << index), ~CyDTR); -#ifdef CY_DEBUG_DTR - printk(KERN_DEBUG "cyc shutdown dropping DTR\n"); - printk(KERN_DEBUG " status: 0x%x, 0x%x\n", - readb(base_addr + (CyMSVR1 << index)), - readb(base_addr + (CyMSVR2 << index))); -#endif - } - cyy_issue_cmd(base_addr, CyCHAN_CTL | CyDIS_RCVR, index); + if (tty->termios->c_cflag & HUPCL) + cyy_change_rts_dtr(info, 0, TIOCM_RTS | TIOCM_DTR); + + cyy_issue_cmd(info, CyCHAN_CTL | CyDIS_RCVR); /* it may be appropriate to clear _XMIT at some later date (after testing)!!! */ - if (info->tty) { - set_bit(TTY_IO_ERROR, &info->tty->flags); - } - info->flags &= ~ASYNC_INITIALIZED; + set_bit(TTY_IO_ERROR, &tty->flags); + info->port.flags &= ~ASYNC_INITIALIZED; spin_unlock_irqrestore(&card->card_lock, flags); } else { - struct FIRM_ID __iomem *firm_id; - struct ZFW_CTRL __iomem *zfw_ctrl; - struct BOARD_CTRL __iomem *board_ctrl; - struct CH_CTRL __iomem *ch_ctrl; - int retval; - - base_addr = card->base_addr; #ifdef CY_DEBUG_OPEN printk(KERN_DEBUG "cyc shutdown Z card %d, channel %d, " - "base_addr %p\n", card, channel, base_addr); + "base_addr %p\n", card, channel, card->base_addr); #endif - firm_id = base_addr + ID_ADDRESS; - if (!ISZLOADED(*card)) { + if (!cyz_is_loaded(card)) return; - } - - zfw_ctrl = card->base_addr + - (readl(&firm_id->zfwctrl_addr) & 0xfffff); - board_ctrl = &zfw_ctrl->board_ctrl; - ch_ctrl = zfw_ctrl->ch_ctrl; spin_lock_irqsave(&card->card_lock, flags); - if (info->xmit_buf) { + if (info->port.xmit_buf) { unsigned char *temp; - temp = info->xmit_buf; - info->xmit_buf = NULL; + temp = info->port.xmit_buf; + info->port.xmit_buf = NULL; free_page((unsigned long)temp); } - if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) { - cy_writel(&ch_ctrl[channel].rs_control, - (__u32)(readl(&ch_ctrl[channel].rs_control) & - ~(C_RS_RTS | C_RS_DTR))); - retval = cyz_issue_cmd(info->card, channel, - C_CM_IOCTLM, 0L); - if (retval != 0) { - printk(KERN_ERR"cyc:shutdown retval on ttyC%d " - "was %x\n", info->line, retval); - } -#ifdef CY_DEBUG_DTR - printk(KERN_DEBUG "cyc:shutdown dropping Z DTR\n"); -#endif - } + if (tty->termios->c_cflag & HUPCL) + tty_port_lower_dtr_rts(&info->port); - if (info->tty) { - set_bit(TTY_IO_ERROR, &info->tty->flags); - } - info->flags &= ~ASYNC_INITIALIZED; + set_bit(TTY_IO_ERROR, &tty->flags); + info->port.flags &= ~ASYNC_INITIALIZED; spin_unlock_irqrestore(&card->card_lock, flags); } @@ -2192,197 +1520,6 @@ static void shutdown(struct cyclades_port *info) * ------------------------------------------------------------ */ -static int -block_til_ready(struct tty_struct *tty, struct file *filp, - struct cyclades_port *info) -{ - DECLARE_WAITQUEUE(wait, current); - struct cyclades_card *cinfo; - unsigned long flags; - int chip, channel, index; - int retval; - void __iomem *base_addr; - - cinfo = info->card; - channel = info->line - cinfo->first_line; - - /* - * If the device is in the middle of being closed, then block - * until it's done, and then try again. - */ - if (tty_hung_up_p(filp) || (info->flags & ASYNC_CLOSING)) { - wait_event_interruptible(info->close_wait, - !(info->flags & ASYNC_CLOSING)); - return (info->flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS; - } - - /* - * If non-blocking mode is set, then make the check up front - * and then exit. - */ - if ((filp->f_flags & O_NONBLOCK) || (tty->flags & (1 << TTY_IO_ERROR))) { - info->flags |= ASYNC_NORMAL_ACTIVE; - return 0; - } - - /* - * Block waiting for the carrier detect and the line to become - * free (i.e., not in use by the callout). While we are in - * this loop, info->count is dropped by one, so that - * cy_close() knows when to free things. We restore it upon - * exit, either normal or abnormal. - */ - retval = 0; - add_wait_queue(&info->open_wait, &wait); -#ifdef CY_DEBUG_OPEN - printk(KERN_DEBUG "cyc block_til_ready before block: ttyC%d, " - "count = %d\n", info->line, info->count); -#endif - spin_lock_irqsave(&cinfo->card_lock, flags); - if (!tty_hung_up_p(filp)) - info->count--; - spin_unlock_irqrestore(&cinfo->card_lock, flags); -#ifdef CY_DEBUG_COUNT - printk(KERN_DEBUG "cyc block_til_ready: (%d): decrementing count to " - "%d\n", current->pid, info->count); -#endif - info->blocked_open++; - - if (!IS_CYC_Z(*cinfo)) { - chip = channel >> 2; - channel &= 0x03; - index = cinfo->bus_index; - base_addr = cinfo->base_addr + (cy_chip_offset[chip] << index); - - while (1) { - spin_lock_irqsave(&cinfo->card_lock, flags); - if ((tty->termios->c_cflag & CBAUD)) { - cy_writeb(base_addr + (CyCAR << index), - (u_char) channel); - cy_writeb(base_addr + (CyMSVR1 << index), - CyRTS); - cy_writeb(base_addr + (CyMSVR2 << index), - CyDTR); -#ifdef CY_DEBUG_DTR - printk(KERN_DEBUG "cyc:block_til_ready raising " - "DTR\n"); - printk(KERN_DEBUG " status: 0x%x, 0x%x\n", - readb(base_addr + (CyMSVR1 << index)), - readb(base_addr + (CyMSVR2 << index))); -#endif - } - spin_unlock_irqrestore(&cinfo->card_lock, flags); - - set_current_state(TASK_INTERRUPTIBLE); - if (tty_hung_up_p(filp) || - !(info->flags & ASYNC_INITIALIZED)) { - retval = ((info->flags & ASYNC_HUP_NOTIFY) ? - -EAGAIN : -ERESTARTSYS); - break; - } - - spin_lock_irqsave(&cinfo->card_lock, flags); - cy_writeb(base_addr + (CyCAR << index), - (u_char) channel); - if (!(info->flags & ASYNC_CLOSING) && (C_CLOCAL(tty) || - (readb(base_addr + - (CyMSVR1 << index)) & CyDCD))) { - spin_unlock_irqrestore(&cinfo->card_lock, flags); - break; - } - spin_unlock_irqrestore(&cinfo->card_lock, flags); - - if (signal_pending(current)) { - retval = -ERESTARTSYS; - break; - } -#ifdef CY_DEBUG_OPEN - printk(KERN_DEBUG "cyc block_til_ready blocking: " - "ttyC%d, count = %d\n", - info->line, info->count); -#endif - schedule(); - } - } else { - struct FIRM_ID __iomem *firm_id; - struct ZFW_CTRL __iomem *zfw_ctrl; - struct BOARD_CTRL __iomem *board_ctrl; - struct CH_CTRL __iomem *ch_ctrl; - - base_addr = cinfo->base_addr; - firm_id = base_addr + ID_ADDRESS; - if (!ISZLOADED(*cinfo)) { - __set_current_state(TASK_RUNNING); - remove_wait_queue(&info->open_wait, &wait); - return -EINVAL; - } - - zfw_ctrl = base_addr + (readl(&firm_id->zfwctrl_addr)& 0xfffff); - board_ctrl = &zfw_ctrl->board_ctrl; - ch_ctrl = zfw_ctrl->ch_ctrl; - - while (1) { - if ((tty->termios->c_cflag & CBAUD)) { - cy_writel(&ch_ctrl[channel].rs_control, - readl(&ch_ctrl[channel].rs_control) | - C_RS_RTS | C_RS_DTR); - retval = cyz_issue_cmd(cinfo, - channel, C_CM_IOCTLM, 0L); - if (retval != 0) { - printk(KERN_ERR "cyc:block_til_ready " - "retval on ttyC%d was %x\n", - info->line, retval); - } -#ifdef CY_DEBUG_DTR - printk(KERN_DEBUG "cyc:block_til_ready raising " - "Z DTR\n"); -#endif - } - - set_current_state(TASK_INTERRUPTIBLE); - if (tty_hung_up_p(filp) || - !(info->flags & ASYNC_INITIALIZED)) { - retval = ((info->flags & ASYNC_HUP_NOTIFY) ? - -EAGAIN : -ERESTARTSYS); - break; - } - if (!(info->flags & ASYNC_CLOSING) && (C_CLOCAL(tty) || - (readl(&ch_ctrl[channel].rs_status) & - C_RS_DCD))) { - break; - } - if (signal_pending(current)) { - retval = -ERESTARTSYS; - break; - } -#ifdef CY_DEBUG_OPEN - printk(KERN_DEBUG "cyc block_til_ready blocking: " - "ttyC%d, count = %d\n", - info->line, info->count); -#endif - schedule(); - } - } - __set_current_state(TASK_RUNNING); - remove_wait_queue(&info->open_wait, &wait); - if (!tty_hung_up_p(filp)) { - info->count++; -#ifdef CY_DEBUG_COUNT - printk(KERN_DEBUG "cyc:block_til_ready (%d): incrementing " - "count to %d\n", current->pid, info->count); -#endif - } - info->blocked_open--; -#ifdef CY_DEBUG_OPEN - printk(KERN_DEBUG "cyc:block_til_ready after blocking: ttyC%d, " - "count = %d\n", info->line, info->count); -#endif - if (retval) - return retval; - info->flags |= ASYNC_NORMAL_ACTIVE; - return 0; -} /* block_til_ready */ - /* * This routine is called whenever a serial port is opened. It * performs the serial-specific initialization for the tty structure. @@ -2390,13 +1527,13 @@ block_til_ready(struct tty_struct *tty, struct file *filp, static int cy_open(struct tty_struct *tty, struct file *filp) { struct cyclades_port *info; - unsigned int i; - int retval, line; + unsigned int i, line; + int retval; line = tty->index; - if ((line < 0) || (NR_PORTS <= line)) { + if (tty->index < 0 || NR_PORTS <= line) return -ENODEV; - } + for (i = 0; i < NR_CARDS; i++) if (line < cy_card[i].first_line + cy_card[i].nports && line >= cy_card[i].first_line) @@ -2404,24 +1541,21 @@ static int cy_open(struct tty_struct *tty, struct file *filp) if (i >= NR_CARDS) return -ENODEV; info = &cy_card[i].ports[line - cy_card[i].first_line]; - if (info->line < 0) { + if (info->line < 0) return -ENODEV; - } /* If the card's firmware hasn't been loaded, treat it as absent from the system. This will make the user pay attention. */ - if (IS_CYC_Z(*info->card)) { + if (cy_is_Z(info->card)) { struct cyclades_card *cinfo = info->card; struct FIRM_ID __iomem *firm_id = cinfo->base_addr + ID_ADDRESS; - if (!ISZLOADED(*cinfo)) { - if (((ZE_V1 == readl(&((struct RUNTIME_9060 __iomem *) - (cinfo->ctl_addr))->mail_box_0)) && - Z_FPGA_CHECK(*cinfo)) && - (ZFIRM_HLT == readl( - &firm_id->signature))) { + if (!cyz_is_loaded(cinfo)) { + if (cinfo->hw_ver == ZE_V1 && cyz_fpga_loaded(cinfo) && + readl(&firm_id->signature) == + ZFIRM_HLT) { printk(KERN_ERR "cyc:Cyclades-Z Error: you " "need an external power supply for " "this number of ports.\nFirmware " @@ -2438,18 +1572,13 @@ static int cy_open(struct tty_struct *tty, struct file *filp) interrupts should be enabled as soon as the first open happens to one of its ports. */ if (!cinfo->intr_enabled) { - struct ZFW_CTRL __iomem *zfw_ctrl; - struct BOARD_CTRL __iomem *board_ctrl; - - zfw_ctrl = cinfo->base_addr + - (readl(&firm_id->zfwctrl_addr) & - 0xfffff); - - board_ctrl = &zfw_ctrl->board_ctrl; + u16 intr; /* Enable interrupts on the PLX chip */ - cy_writew(cinfo->ctl_addr + 0x68, - readw(cinfo->ctl_addr + 0x68) | 0x0900); + intr = readw(&cinfo->ctl_addr.p9060-> + intr_ctrl_stat) | 0x0900; + cy_writew(&cinfo->ctl_addr.p9060-> + intr_ctrl_stat, intr); /* Enable interrupts on the FW */ retval = cyz_issue_cmd(cinfo, 0, C_CM_IRQ_ENBL, 0L); @@ -2457,8 +1586,6 @@ static int cy_open(struct tty_struct *tty, struct file *filp) printk(KERN_ERR "cyc:IRQ enable retval " "was %x\n", retval); } - cinfo->nports = - (int)readl(&board_ctrl->n_channel); cinfo->intr_enabled = 1; } } @@ -2471,38 +1598,36 @@ static int cy_open(struct tty_struct *tty, struct file *filp) printk(KERN_DEBUG "cyc:cy_open ttyC%d\n", info->line); #endif tty->driver_data = info; - info->tty = tty; - if (serial_paranoia_check(info, tty->name, "cy_open")) { + if (serial_paranoia_check(info, tty->name, "cy_open")) return -ENODEV; - } + #ifdef CY_DEBUG_OPEN printk(KERN_DEBUG "cyc:cy_open ttyC%d, count = %d\n", info->line, - info->count); + info->port.count); #endif - info->count++; + info->port.count++; #ifdef CY_DEBUG_COUNT printk(KERN_DEBUG "cyc:cy_open (%d): incrementing count to %d\n", - current->pid, info->count); + current->pid, info->port.count); #endif /* * If the port is the middle of closing, bail out now */ - if (tty_hung_up_p(filp) || (info->flags & ASYNC_CLOSING)) { - wait_event_interruptible(info->close_wait, - !(info->flags & ASYNC_CLOSING)); - return (info->flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS; + if (tty_hung_up_p(filp) || (info->port.flags & ASYNC_CLOSING)) { + wait_event_interruptible(info->port.close_wait, + !(info->port.flags & ASYNC_CLOSING)); + return (info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS; } /* * Start up serial port */ - retval = startup(info); - if (retval) { + retval = cy_startup(info, tty); + if (retval) return retval; - } - retval = block_til_ready(tty, filp, info); + retval = tty_port_block_til_ready(&info->port, tty, filp); if (retval) { #ifdef CY_DEBUG_OPEN printk(KERN_DEBUG "cyc:cy_open returning after block_til_ready " @@ -2512,6 +1637,7 @@ static int cy_open(struct tty_struct *tty, struct file *filp) } info->throttle = 0; + tty_port_tty_set(&info->port, tty); #ifdef CY_DEBUG_OPEN printk(KERN_DEBUG "cyc:cy_open done\n"); @@ -2526,8 +1652,6 @@ static void cy_wait_until_sent(struct tty_struct *tty, int timeout) { struct cyclades_card *card; struct cyclades_port *info = tty->driver_data; - void __iomem *base_addr; - int chip, channel, index; unsigned long orig_jiffies; int char_time; @@ -2538,6 +1662,7 @@ static void cy_wait_until_sent(struct tty_struct *tty, int timeout) return; /* Just in case.... */ orig_jiffies = jiffies; + lock_kernel(); /* * Set the check interval to be 1/5 of the estimated time to * send a single character, and make it at least 1. The check @@ -2570,13 +1695,8 @@ static void cy_wait_until_sent(struct tty_struct *tty, int timeout) timeout, char_time, jiffies); #endif card = info->card; - channel = (info->line) - (card->first_line); - if (!IS_CYC_Z(*card)) { - chip = channel >> 2; - channel &= 0x03; - index = card->bus_index; - base_addr = card->base_addr + (cy_chip_offset[chip] << index); - while (readb(base_addr + (CySRER << index)) & CyTxRdy) { + if (!cy_is_Z(card)) { + while (cyy_readb(info, CySRER) & CyTxRdy) { #ifdef CY_DEBUG_WAIT_UNTIL_SENT printk(KERN_DEBUG "Not clean (jiff=%lu)...", jiffies); #endif @@ -2589,108 +1709,78 @@ static void cy_wait_until_sent(struct tty_struct *tty, int timeout) } /* Run one more char cycle */ msleep_interruptible(jiffies_to_msecs(char_time * 5)); + unlock_kernel(); #ifdef CY_DEBUG_WAIT_UNTIL_SENT printk(KERN_DEBUG "Clean (jiff=%lu)...done\n", jiffies); #endif } -/* - * This routine is called when a particular tty device is closed. - */ -static void cy_close(struct tty_struct *tty, struct file *filp) +static void cy_flush_buffer(struct tty_struct *tty) { struct cyclades_port *info = tty->driver_data; struct cyclades_card *card; + int channel, retval; unsigned long flags; -#ifdef CY_DEBUG_OTHER - printk(KERN_DEBUG "cyc:cy_close ttyC%d\n", info->line); +#ifdef CY_DEBUG_IO + printk(KERN_DEBUG "cyc:cy_flush_buffer ttyC%d\n", info->line); #endif - if (!info || serial_paranoia_check(info, tty->name, "cy_close")) { + if (serial_paranoia_check(info, tty->name, "cy_flush_buffer")) return; - } card = info->card; + channel = info->line - card->first_line; spin_lock_irqsave(&card->card_lock, flags); - /* If the TTY is being hung up, nothing to do */ - if (tty_hung_up_p(filp)) { - spin_unlock_irqrestore(&card->card_lock, flags); - return; - } -#ifdef CY_DEBUG_OPEN - printk(KERN_DEBUG "cyc:cy_close ttyC%d, count = %d\n", info->line, - info->count); -#endif - if ((tty->count == 1) && (info->count != 1)) { - /* - * Uh, oh. tty->count is 1, which means that the tty - * structure will be freed. Info->count should always - * be one in these conditions. If it's greater than - * one, we've got real problems, since it means the - * serial port won't be shutdown. - */ - printk(KERN_ERR "cyc:cy_close: bad serial port count; " - "tty->count is 1, info->count is %d\n", info->count); - info->count = 1; - } -#ifdef CY_DEBUG_COUNT - printk(KERN_DEBUG "cyc:cy_close at (%d): decrementing count to %d\n", - current->pid, info->count - 1); -#endif - if (--info->count < 0) { -#ifdef CY_DEBUG_COUNT - printk(KERN_DEBUG "cyc:cyc_close setting count to 0\n"); -#endif - info->count = 0; - } - if (info->count) { + info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; + spin_unlock_irqrestore(&card->card_lock, flags); + + if (cy_is_Z(card)) { /* If it is a Z card, flush the on-board + buffers as well */ + spin_lock_irqsave(&card->card_lock, flags); + retval = cyz_issue_cmd(card, channel, C_CM_FLUSH_TX, 0L); + if (retval != 0) { + printk(KERN_ERR "cyc: flush_buffer retval on ttyC%d " + "was %x\n", info->line, retval); + } spin_unlock_irqrestore(&card->card_lock, flags); - return; } - info->flags |= ASYNC_CLOSING; + tty_wakeup(tty); +} /* cy_flush_buffer */ - /* - * Now we wait for the transmit buffer to clear; and we notify - * the line discipline to only process XON/XOFF characters. - */ - tty->closing = 1; - spin_unlock_irqrestore(&card->card_lock, flags); - if (info->closing_wait != CY_CLOSING_WAIT_NONE) { - tty_wait_until_sent(tty, info->closing_wait); - } + +static void cy_do_close(struct tty_port *port) +{ + struct cyclades_port *info = container_of(port, struct cyclades_port, + port); + struct cyclades_card *card; + unsigned long flags; + int channel; + + card = info->card; + channel = info->line - card->first_line; spin_lock_irqsave(&card->card_lock, flags); - if (!IS_CYC_Z(*card)) { - int channel = info->line - card->first_line; - int index = card->bus_index; - void __iomem *base_addr = card->base_addr + - (cy_chip_offset[channel >> 2] << index); + if (!cy_is_Z(card)) { /* Stop accepting input */ - channel &= 0x03; - cy_writeb(base_addr + (CyCAR << index), (u_char) channel); - cy_writeb(base_addr + (CySRER << index), - readb(base_addr + (CySRER << index)) & ~CyRxData); - if (info->flags & ASYNC_INITIALIZED) { - /* Waiting for on-board buffers to be empty before closing - the port */ + cyy_writeb(info, CyCAR, channel & 0x03); + cyy_writeb(info, CySRER, cyy_readb(info, CySRER) & ~CyRxData); + if (info->port.flags & ASYNC_INITIALIZED) { + /* Waiting for on-board buffers to be empty before + closing the port */ spin_unlock_irqrestore(&card->card_lock, flags); - cy_wait_until_sent(tty, info->timeout); + cy_wait_until_sent(port->tty, info->timeout); spin_lock_irqsave(&card->card_lock, flags); } } else { #ifdef Z_WAKE - /* Waiting for on-board buffers to be empty before closing the port */ - void __iomem *base_addr = card->base_addr; - struct FIRM_ID __iomem *firm_id = base_addr + ID_ADDRESS; - struct ZFW_CTRL __iomem *zfw_ctrl = - base_addr + (readl(&firm_id->zfwctrl_addr) & 0xfffff); - struct CH_CTRL __iomem *ch_ctrl = zfw_ctrl->ch_ctrl; - int channel = info->line - card->first_line; + /* Waiting for on-board buffers to be empty before closing + the port */ + struct CH_CTRL __iomem *ch_ctrl = info->u.cyz.ch_ctrl; int retval; - if (readl(&ch_ctrl[channel].flow_status) != C_FS_TXIDLE) { + if (readl(&ch_ctrl->flow_status) != C_FS_TXIDLE) { retval = cyz_issue_cmd(card, channel, C_CM_IOCTLW, 0L); if (retval != 0) { printk(KERN_DEBUG "cyc:cy_close retval on " @@ -2702,33 +1792,19 @@ static void cy_close(struct tty_struct *tty, struct file *filp) } #endif } - spin_unlock_irqrestore(&card->card_lock, flags); - shutdown(info); - if (tty->driver->flush_buffer) - tty->driver->flush_buffer(tty); - tty_ldisc_flush(tty); - spin_lock_irqsave(&card->card_lock, flags); - - tty->closing = 0; - info->tty = NULL; - if (info->blocked_open) { - spin_unlock_irqrestore(&card->card_lock, flags); - if (info->close_delay) { - msleep_interruptible(jiffies_to_msecs - (info->close_delay)); - } - wake_up_interruptible(&info->open_wait); - spin_lock_irqsave(&card->card_lock, flags); - } - info->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING); - wake_up_interruptible(&info->close_wait); - -#ifdef CY_DEBUG_OTHER - printk(KERN_DEBUG "cyc:cy_close done\n"); -#endif + cy_shutdown(info, port->tty); +} - spin_unlock_irqrestore(&card->card_lock, flags); +/* + * This routine is called when a particular tty device is closed. + */ +static void cy_close(struct tty_struct *tty, struct file *filp) +{ + struct cyclades_port *info = tty->driver_data; + if (!info || serial_paranoia_check(info, tty->name, "cy_close")) + return; + tty_port_close(&info->port, tty, filp); } /* cy_close */ /* This routine gets called when tty_write has put something into @@ -2754,22 +1830,21 @@ static int cy_write(struct tty_struct *tty, const unsigned char *buf, int count) printk(KERN_DEBUG "cyc:cy_write ttyC%d\n", info->line); #endif - if (serial_paranoia_check(info, tty->name, "cy_write")) { + if (serial_paranoia_check(info, tty->name, "cy_write")) return 0; - } - if (!info->xmit_buf) + if (!info->port.xmit_buf) return 0; spin_lock_irqsave(&info->card->card_lock, flags); while (1) { - c = min(count, min((int)(SERIAL_XMIT_SIZE - info->xmit_cnt - 1), - (int)(SERIAL_XMIT_SIZE - info->xmit_head))); + c = min(count, (int)(SERIAL_XMIT_SIZE - info->xmit_cnt - 1)); + c = min(c, (int)(SERIAL_XMIT_SIZE - info->xmit_head)); if (c <= 0) break; - memcpy(info->xmit_buf + info->xmit_head, buf, c); + memcpy(info->port.xmit_buf + info->xmit_head, buf, c); info->xmit_head = (info->xmit_head + c) & (SERIAL_XMIT_SIZE - 1); info->xmit_cnt += c; @@ -2782,9 +1857,9 @@ static int cy_write(struct tty_struct *tty, const unsigned char *buf, int count) info->idle_stats.xmit_bytes += ret; info->idle_stats.xmit_idle = jiffies; - if (info->xmit_cnt && !tty->stopped && !tty->hw_stopped) { + if (info->xmit_cnt && !tty->stopped && !tty->hw_stopped) start_xmit(info); - } + return ret; } /* cy_write */ @@ -2795,7 +1870,7 @@ static int cy_write(struct tty_struct *tty, const unsigned char *buf, int count) * done stuffing characters into the driver. If there is no room * in the queue, the character is ignored. */ -static void cy_put_char(struct tty_struct *tty, unsigned char ch) +static int cy_put_char(struct tty_struct *tty, unsigned char ch) { struct cyclades_port *info = tty->driver_data; unsigned long flags; @@ -2805,28 +1880,29 @@ static void cy_put_char(struct tty_struct *tty, unsigned char ch) #endif if (serial_paranoia_check(info, tty->name, "cy_put_char")) - return; + return 0; - if (!info->xmit_buf) - return; + if (!info->port.xmit_buf) + return 0; spin_lock_irqsave(&info->card->card_lock, flags); if (info->xmit_cnt >= (int)(SERIAL_XMIT_SIZE - 1)) { spin_unlock_irqrestore(&info->card->card_lock, flags); - return; + return 0; } - info->xmit_buf[info->xmit_head++] = ch; + info->port.xmit_buf[info->xmit_head++] = ch; info->xmit_head &= SERIAL_XMIT_SIZE - 1; info->xmit_cnt++; info->idle_stats.xmit_bytes++; info->idle_stats.xmit_idle = jiffies; spin_unlock_irqrestore(&info->card->card_lock, flags); + return 1; } /* cy_put_char */ /* * This routine is called by the kernel after it has written a - * series of characters to the tty device using put_char(). + * series of characters to the tty device using put_char(). */ static void cy_flush_chars(struct tty_struct *tty) { @@ -2840,7 +1916,7 @@ static void cy_flush_chars(struct tty_struct *tty) return; if (info->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped || - !info->xmit_buf) + !info->port.xmit_buf) return; start_xmit(info); @@ -2871,18 +1947,13 @@ static int cy_write_room(struct tty_struct *tty) static int cy_chars_in_buffer(struct tty_struct *tty) { - struct cyclades_card *card; struct cyclades_port *info = tty->driver_data; - int channel; if (serial_paranoia_check(info, tty->name, "cy_chars_in_buffer")) return 0; - card = info->card; - channel = (info->line) - (card->first_line); - #ifdef Z_EXT_CHARS_IN_BUFFER - if (!IS_CYC_Z(cy_card[card])) { + if (!cy_is_Z(info->card)) { #endif /* Z_EXT_CHARS_IN_BUFFER */ #ifdef CY_DEBUG_IO printk(KERN_DEBUG "cyc:cy_chars_in_buffer ttyC%d %d\n", @@ -2891,19 +1962,11 @@ static int cy_chars_in_buffer(struct tty_struct *tty) return info->xmit_cnt; #ifdef Z_EXT_CHARS_IN_BUFFER } else { - static struct FIRM_ID *firm_id; - static struct ZFW_CTRL *zfw_ctrl; - static struct CH_CTRL *ch_ctrl; - static struct BUF_CTRL *buf_ctrl; + struct BUF_CTRL __iomem *buf_ctrl = info->u.cyz.buf_ctrl; int char_count; __u32 tx_put, tx_get, tx_bufsize; - firm_id = card->base_addr + ID_ADDRESS; - zfw_ctrl = card->base_addr + - (readl(&firm_id->zfwctrl_addr) & 0xfffff); - ch_ctrl = &(zfw_ctrl->ch_ctrl[channel]); - buf_ctrl = &(zfw_ctrl->buf_ctrl[channel]); - + lock_kernel(); tx_get = readl(&buf_ctrl->tx_get); tx_put = readl(&buf_ctrl->tx_put); tx_bufsize = readl(&buf_ctrl->tx_bufsize); @@ -2915,6 +1978,7 @@ static int cy_chars_in_buffer(struct tty_struct *tty) printk(KERN_DEBUG "cyc:cy_chars_in_buffer ttyC%d %d\n", info->line, info->xmit_cnt + char_count); #endif + unlock_kernel(); return info->xmit_cnt + char_count; } #endif /* Z_EXT_CHARS_IN_BUFFER */ @@ -2955,51 +2019,45 @@ static void cyy_baud_calc(struct cyclades_port *info, __u32 baud) * This routine finds or computes the various line characteristics. * It used to be called config_setup */ -static void set_line_char(struct cyclades_port *info) +static void cy_set_line_char(struct cyclades_port *info, struct tty_struct *tty) { struct cyclades_card *card; unsigned long flags; - void __iomem *base_addr; - int chip, channel, index; + int channel; unsigned cflag, iflag; - unsigned short chip_number; int baud, baud_rate = 0; int i; - if (!info->tty || !info->tty->termios) { + if (!tty->termios) /* XXX can this happen at all? */ return; - } - if (info->line == -1) { + + if (info->line == -1) return; - } - cflag = info->tty->termios->c_cflag; - iflag = info->tty->termios->c_iflag; + + cflag = tty->termios->c_cflag; + iflag = tty->termios->c_iflag; /* * Set up the tty->alt_speed kludge */ - if (info->tty) { - if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) - info->tty->alt_speed = 57600; - if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) - info->tty->alt_speed = 115200; - if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) - info->tty->alt_speed = 230400; - if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) - info->tty->alt_speed = 460800; - } + if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) + tty->alt_speed = 57600; + if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) + tty->alt_speed = 115200; + if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) + tty->alt_speed = 230400; + if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) + tty->alt_speed = 460800; card = info->card; channel = info->line - card->first_line; - chip_number = channel / 4; - if (!IS_CYC_Z(*card)) { - - index = card->bus_index; + if (!cy_is_Z(card)) { + u32 cflags; /* baud rate */ - baud = tty_get_baud_rate(info->tty); - if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) == + baud = tty_get_baud_rate(tty); + if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) { if (info->custom_divisor) baud_rate = info->baud / info->custom_divisor; @@ -3010,15 +2068,13 @@ static void set_line_char(struct cyclades_port *info) } /* find the baud index */ for (i = 0; i < 20; i++) { - if (baud == baud_table[i]) { + if (baud == baud_table[i]) break; - } } - if (i == 20) { + if (i == 20) i = 19; /* CD1400_MAX_SPEED */ - } - if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) == + if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) { cyy_baud_calc(info, baud_rate); } else { @@ -3039,7 +2095,7 @@ static void set_line_char(struct cyclades_port *info) /* get it right for 134.5 baud */ info->timeout = (info->xmit_fifo_size * HZ * 30 / 269) + 2; - } else if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) == + } else if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) { info->timeout = (info->xmit_fifo_size * HZ * 15 / baud_rate) + 2; @@ -3075,31 +2131,29 @@ static void set_line_char(struct cyclades_port *info) info->cor1 = Cy_8_BITS; break; } - if (cflag & CSTOPB) { + if (cflag & CSTOPB) info->cor1 |= Cy_2_STOP; - } + if (cflag & PARENB) { - if (cflag & PARODD) { + if (cflag & PARODD) info->cor1 |= CyPARITY_O; - } else { + else info->cor1 |= CyPARITY_E; - } - } else { + } else info->cor1 |= CyPARITY_NONE; - } /* CTS flow control flag */ if (cflag & CRTSCTS) { - info->flags |= ASYNC_CTS_FLOW; + info->port.flags |= ASYNC_CTS_FLOW; info->cor2 |= CyCtsAE; } else { - info->flags &= ~ASYNC_CTS_FLOW; + info->port.flags &= ~ASYNC_CTS_FLOW; info->cor2 &= ~CyCtsAE; } if (cflag & CLOCAL) - info->flags &= ~ASYNC_CHECK_CD; + info->port.flags &= ~ASYNC_CHECK_CD; else - info->flags |= ASYNC_CHECK_CD; + info->port.flags |= ASYNC_CHECK_CD; /*********************************************** The hardware option, CyRtsAO, presents RTS when @@ -3111,130 +2165,69 @@ static void set_line_char(struct cyclades_port *info) cable. Contact Marcio Saito for details. ***********************************************/ - chip = channel >> 2; channel &= 0x03; - base_addr = card->base_addr + (cy_chip_offset[chip] << index); spin_lock_irqsave(&card->card_lock, flags); - cy_writeb(base_addr + (CyCAR << index), (u_char) channel); + cyy_writeb(info, CyCAR, channel); /* tx and rx baud rate */ - cy_writeb(base_addr + (CyTCOR << index), info->tco); - cy_writeb(base_addr + (CyTBPR << index), info->tbpr); - cy_writeb(base_addr + (CyRCOR << index), info->rco); - cy_writeb(base_addr + (CyRBPR << index), info->rbpr); + cyy_writeb(info, CyTCOR, info->tco); + cyy_writeb(info, CyTBPR, info->tbpr); + cyy_writeb(info, CyRCOR, info->rco); + cyy_writeb(info, CyRBPR, info->rbpr); /* set line characteristics according configuration */ - cy_writeb(base_addr + (CySCHR1 << index), - START_CHAR(info->tty)); - cy_writeb(base_addr + (CySCHR2 << index), STOP_CHAR(info->tty)); - cy_writeb(base_addr + (CyCOR1 << index), info->cor1); - cy_writeb(base_addr + (CyCOR2 << index), info->cor2); - cy_writeb(base_addr + (CyCOR3 << index), info->cor3); - cy_writeb(base_addr + (CyCOR4 << index), info->cor4); - cy_writeb(base_addr + (CyCOR5 << index), info->cor5); + cyy_writeb(info, CySCHR1, START_CHAR(tty)); + cyy_writeb(info, CySCHR2, STOP_CHAR(tty)); + cyy_writeb(info, CyCOR1, info->cor1); + cyy_writeb(info, CyCOR2, info->cor2); + cyy_writeb(info, CyCOR3, info->cor3); + cyy_writeb(info, CyCOR4, info->cor4); + cyy_writeb(info, CyCOR5, info->cor5); - cyy_issue_cmd(base_addr, CyCOR_CHANGE | CyCOR1ch | CyCOR2ch | - CyCOR3ch, index); + cyy_issue_cmd(info, CyCOR_CHANGE | CyCOR1ch | CyCOR2ch | + CyCOR3ch); - cy_writeb(base_addr + (CyCAR << index), (u_char) channel); /* !!! Is this needed? */ - cy_writeb(base_addr + (CyRTPR << index), + /* !!! Is this needed? */ + cyy_writeb(info, CyCAR, channel); + cyy_writeb(info, CyRTPR, (info->default_timeout ? info->default_timeout : 0x02)); /* 10ms rx timeout */ - if (C_CLOCAL(info->tty)) { - /* without modem intr */ - cy_writeb(base_addr + (CySRER << index), - readb(base_addr + (CySRER << index)) | CyMdmCh); - /* act on 1->0 modem transitions */ - if ((cflag & CRTSCTS) && info->rflow) { - cy_writeb(base_addr + (CyMCOR1 << index), - (CyCTS | rflow_thr[i])); - } else { - cy_writeb(base_addr + (CyMCOR1 << index), - CyCTS); - } - /* act on 0->1 modem transitions */ - cy_writeb(base_addr + (CyMCOR2 << index), CyCTS); - } else { - /* without modem intr */ - cy_writeb(base_addr + (CySRER << index), - readb(base_addr + - (CySRER << index)) | CyMdmCh); - /* act on 1->0 modem transitions */ - if ((cflag & CRTSCTS) && info->rflow) { - cy_writeb(base_addr + (CyMCOR1 << index), - (CyDSR | CyCTS | CyRI | CyDCD | - rflow_thr[i])); - } else { - cy_writeb(base_addr + (CyMCOR1 << index), - CyDSR | CyCTS | CyRI | CyDCD); - } - /* act on 0->1 modem transitions */ - cy_writeb(base_addr + (CyMCOR2 << index), - CyDSR | CyCTS | CyRI | CyDCD); - } + cflags = CyCTS; + if (!C_CLOCAL(tty)) + cflags |= CyDSR | CyRI | CyDCD; + /* without modem intr */ + cyy_writeb(info, CySRER, cyy_readb(info, CySRER) | CyMdmCh); + /* act on 1->0 modem transitions */ + if ((cflag & CRTSCTS) && info->rflow) + cyy_writeb(info, CyMCOR1, cflags | rflow_thr[i]); + else + cyy_writeb(info, CyMCOR1, cflags); + /* act on 0->1 modem transitions */ + cyy_writeb(info, CyMCOR2, cflags); - if (i == 0) { /* baud rate is zero, turn off line */ - if (info->rtsdtr_inv) { - cy_writeb(base_addr + (CyMSVR1 << index), - ~CyRTS); - } else { - cy_writeb(base_addr + (CyMSVR2 << index), - ~CyDTR); - } -#ifdef CY_DEBUG_DTR - printk(KERN_DEBUG "cyc:set_line_char dropping DTR\n"); - printk(KERN_DEBUG " status: 0x%x, 0x%x\n", - readb(base_addr + (CyMSVR1 << index)), - readb(base_addr + (CyMSVR2 << index))); -#endif - } else { - if (info->rtsdtr_inv) { - cy_writeb(base_addr + (CyMSVR1 << index), - CyRTS); - } else { - cy_writeb(base_addr + (CyMSVR2 << index), - CyDTR); - } -#ifdef CY_DEBUG_DTR - printk(KERN_DEBUG "cyc:set_line_char raising DTR\n"); - printk(KERN_DEBUG " status: 0x%x, 0x%x\n", - readb(base_addr + (CyMSVR1 << index)), - readb(base_addr + (CyMSVR2 << index))); -#endif - } + if (i == 0) /* baud rate is zero, turn off line */ + cyy_change_rts_dtr(info, 0, TIOCM_DTR); + else + cyy_change_rts_dtr(info, TIOCM_DTR, 0); - if (info->tty) { - clear_bit(TTY_IO_ERROR, &info->tty->flags); - } + clear_bit(TTY_IO_ERROR, &tty->flags); spin_unlock_irqrestore(&card->card_lock, flags); } else { - struct FIRM_ID __iomem *firm_id; - struct ZFW_CTRL __iomem *zfw_ctrl; - struct BOARD_CTRL __iomem *board_ctrl; - struct CH_CTRL __iomem *ch_ctrl; - struct BUF_CTRL __iomem *buf_ctrl; + struct CH_CTRL __iomem *ch_ctrl = info->u.cyz.ch_ctrl; __u32 sw_flow; int retval; - firm_id = card->base_addr + ID_ADDRESS; - if (!ISZLOADED(*card)) { + if (!cyz_is_loaded(card)) return; - } - - zfw_ctrl = card->base_addr + - (readl(&firm_id->zfwctrl_addr) & 0xfffff); - board_ctrl = &zfw_ctrl->board_ctrl; - ch_ctrl = &(zfw_ctrl->ch_ctrl[channel]); - buf_ctrl = &zfw_ctrl->buf_ctrl[channel]; /* baud rate */ - baud = tty_get_baud_rate(info->tty); - if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) == + baud = tty_get_baud_rate(tty); + if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) { if (info->custom_divisor) baud_rate = info->baud / info->custom_divisor; @@ -3249,7 +2242,7 @@ static void set_line_char(struct cyclades_port *info) /* get it right for 134.5 baud */ info->timeout = (info->xmit_fifo_size * HZ * 30 / 269) + 2; - } else if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) == + } else if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) { info->timeout = (info->xmit_fifo_size * HZ * 15 / baud_rate) + 2; @@ -3284,14 +2277,12 @@ static void set_line_char(struct cyclades_port *info) readl(&ch_ctrl->comm_data_l) | C_DL_1STOP); } if (cflag & PARENB) { - if (cflag & PARODD) { + if (cflag & PARODD) cy_writel(&ch_ctrl->comm_parity, C_PR_ODD); - } else { + else cy_writel(&ch_ctrl->comm_parity, C_PR_EVEN); - } - } else { + } else cy_writel(&ch_ctrl->comm_parity, C_PR_NONE); - } /* CTS flow control flag */ if (cflag & CRTSCTS) { @@ -3303,7 +2294,7 @@ static void set_line_char(struct cyclades_port *info) } /* As the HW flow control is done in firmware, the driver doesn't need to care about it */ - info->flags &= ~ASYNC_CTS_FLOW; + info->port.flags &= ~ASYNC_CTS_FLOW; /* XON/XOFF/XANY flow control flags */ sw_flow = 0; @@ -3321,11 +2312,10 @@ static void set_line_char(struct cyclades_port *info) } /* CD sensitivity */ - if (cflag & CLOCAL) { - info->flags &= ~ASYNC_CHECK_CD; - } else { - info->flags |= ASYNC_CHECK_CD; - } + if (cflag & CLOCAL) + info->port.flags &= ~ASYNC_CHECK_CD; + else + info->port.flags |= ASYNC_CHECK_CD; if (baud == 0) { /* baud rate is zero, turn off line */ cy_writel(&ch_ctrl->rs_control, @@ -3341,61 +2331,53 @@ static void set_line_char(struct cyclades_port *info) #endif } - retval = cyz_issue_cmd(card, channel, C_CM_IOCTLM,0L); + retval = cyz_issue_cmd(card, channel, C_CM_IOCTLM, 0L); if (retval != 0) { printk(KERN_ERR "cyc:set_line_char(2) retval on ttyC%d " "was %x\n", info->line, retval); } - if (info->tty) { - clear_bit(TTY_IO_ERROR, &info->tty->flags); - } + clear_bit(TTY_IO_ERROR, &tty->flags); } } /* set_line_char */ -static int -get_serial_info(struct cyclades_port *info, - struct serial_struct __user * retinfo) +static int cy_get_serial_info(struct cyclades_port *info, + struct serial_struct __user *retinfo) { - struct serial_struct tmp; struct cyclades_card *cinfo = info->card; - - if (!retinfo) - return -EFAULT; - memset(&tmp, 0, sizeof(tmp)); - tmp.type = info->type; - tmp.line = info->line; - tmp.port = (info->card - cy_card) * 0x100 + info->line - - cinfo->first_line; - tmp.irq = cinfo->irq; - tmp.flags = info->flags; - tmp.close_delay = info->close_delay; - tmp.closing_wait = info->closing_wait; - tmp.baud_base = info->baud; - tmp.custom_divisor = info->custom_divisor; - tmp.hub6 = 0; /*!!! */ + struct serial_struct tmp = { + .type = info->type, + .line = info->line, + .port = (info->card - cy_card) * 0x100 + info->line - + cinfo->first_line, + .irq = cinfo->irq, + .flags = info->port.flags, + .close_delay = info->port.close_delay, + .closing_wait = info->port.closing_wait, + .baud_base = info->baud, + .custom_divisor = info->custom_divisor, + .hub6 = 0, /*!!! */ + }; return copy_to_user(retinfo, &tmp, sizeof(*retinfo)) ? -EFAULT : 0; -} /* get_serial_info */ +} static int -set_serial_info(struct cyclades_port *info, - struct serial_struct __user * new_info) +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->close_delay || + if (new_serial.close_delay != info->port.close_delay || new_serial.baud_base != info->baud || (new_serial.flags & ASYNC_FLAGS & ~ASYNC_USR_MASK) != - (info->flags & ASYNC_FLAGS & ~ASYNC_USR_MASK)) + (info->port.flags & ASYNC_FLAGS & ~ASYNC_USR_MASK)) return -EPERM; - info->flags = (info->flags & ~ASYNC_USR_MASK) | + info->port.flags = (info->port.flags & ~ASYNC_USR_MASK) | (new_serial.flags & ASYNC_USR_MASK); info->baud = new_serial.baud_base; info->custom_divisor = new_serial.custom_divisor; @@ -3409,17 +2391,17 @@ set_serial_info(struct cyclades_port *info, info->baud = new_serial.baud_base; info->custom_divisor = new_serial.custom_divisor; - info->flags = (info->flags & ~ASYNC_FLAGS) | + info->port.flags = (info->port.flags & ~ASYNC_FLAGS) | (new_serial.flags & ASYNC_FLAGS); - info->close_delay = new_serial.close_delay * HZ / 100; - info->closing_wait = new_serial.closing_wait * HZ / 100; + info->port.close_delay = new_serial.close_delay * HZ / 100; + info->port.closing_wait = new_serial.closing_wait * HZ / 100; check_and_exit: - if (info->flags & ASYNC_INITIALIZED) { - set_line_char(info); + if (info->port.flags & ASYNC_INITIALIZED) { + cy_set_line_char(info, tty); return 0; } else { - return startup(info); + return cy_startup(info, tty); } } /* set_serial_info */ @@ -3433,26 +2415,16 @@ check_and_exit: * transmit holding register is empty. This functionality * allows an RS485 driver to be written in user space. */ -static int get_lsr_info(struct cyclades_port *info, unsigned int __user * value) +static int get_lsr_info(struct cyclades_port *info, unsigned int __user *value) { - struct cyclades_card *card; - int chip, channel, index; - unsigned char status; + struct cyclades_card *card = info->card; unsigned int result; unsigned long flags; - void __iomem *base_addr; - - card = info->card; - channel = (info->line) - (card->first_line); - if (!IS_CYC_Z(*card)) { - chip = channel >> 2; - channel &= 0x03; - index = card->bus_index; - base_addr = card->base_addr + (cy_chip_offset[chip] << index); + u8 status; + if (!cy_is_Z(card)) { spin_lock_irqsave(&card->card_lock, flags); - status = readb(base_addr + (CySRER << index)) & - (CyTxRdy | CyTxMpty); + status = cyy_readb(info, CySRER) & (CyTxRdy | CyTxMpty); spin_unlock_irqrestore(&card->card_lock, flags); result = (status ? 0 : TIOCSER_TEMT); } else { @@ -3466,32 +2438,23 @@ static int cy_tiocmget(struct tty_struct *tty, struct file *file) { struct cyclades_port *info = tty->driver_data; struct cyclades_card *card; - int chip, channel, index; - void __iomem *base_addr; - unsigned long flags; - unsigned char status; - unsigned long lstatus; - unsigned int result; - struct FIRM_ID __iomem *firm_id; - struct ZFW_CTRL __iomem *zfw_ctrl; - struct BOARD_CTRL __iomem *board_ctrl; - struct CH_CTRL __iomem *ch_ctrl; + int result; - if (serial_paranoia_check(info, tty->name, __FUNCTION__)) + if (serial_paranoia_check(info, tty->name, __func__)) return -ENODEV; card = info->card; - channel = info->line - card->first_line; - if (!IS_CYC_Z(*card)) { - chip = channel >> 2; - channel &= 0x03; - index = card->bus_index; - base_addr = card->base_addr + (cy_chip_offset[chip] << index); + + lock_kernel(); + if (!cy_is_Z(card)) { + unsigned long flags; + int channel = info->line - card->first_line; + u8 status; spin_lock_irqsave(&card->card_lock, flags); - cy_writeb(base_addr + (CyCAR << index), (u_char) channel); - status = readb(base_addr + (CyMSVR1 << index)); - status |= readb(base_addr + (CyMSVR2 << index)); + cyy_writeb(info, CyCAR, channel & 0x03); + status = cyy_readb(info, CyMSVR1); + status |= cyy_readb(info, CyMSVR2); spin_unlock_irqrestore(&card->card_lock, flags); if (info->rtsdtr_inv) { @@ -3506,26 +2469,23 @@ static int cy_tiocmget(struct tty_struct *tty, struct file *file) ((status & CyDSR) ? TIOCM_DSR : 0) | ((status & CyCTS) ? TIOCM_CTS : 0); } else { - base_addr = card->base_addr; - firm_id = card->base_addr + ID_ADDRESS; - if (ISZLOADED(*card)) { - zfw_ctrl = card->base_addr + - (readl(&firm_id->zfwctrl_addr) & 0xfffff); - board_ctrl = &zfw_ctrl->board_ctrl; - ch_ctrl = zfw_ctrl->ch_ctrl; - lstatus = readl(&ch_ctrl[channel].rs_status); - result = ((lstatus & C_RS_RTS) ? TIOCM_RTS : 0) | - ((lstatus & C_RS_DTR) ? TIOCM_DTR : 0) | - ((lstatus & C_RS_DCD) ? TIOCM_CAR : 0) | - ((lstatus & C_RS_RI) ? TIOCM_RNG : 0) | - ((lstatus & C_RS_DSR) ? TIOCM_DSR : 0) | - ((lstatus & C_RS_CTS) ? TIOCM_CTS : 0); - } else { - result = 0; - return -ENODEV; + u32 lstatus; + + if (!cyz_is_loaded(card)) { + result = -ENODEV; + goto end; } + lstatus = readl(&info->u.cyz.ch_ctrl->rs_status); + result = ((lstatus & C_RS_RTS) ? TIOCM_RTS : 0) | + ((lstatus & C_RS_DTR) ? TIOCM_DTR : 0) | + ((lstatus & C_RS_DCD) ? TIOCM_CAR : 0) | + ((lstatus & C_RS_RI) ? TIOCM_RNG : 0) | + ((lstatus & C_RS_DSR) ? TIOCM_DSR : 0) | + ((lstatus & C_RS_CTS) ? TIOCM_CTS : 0); } +end: + unlock_kernel(); return result; } /* cy_tiomget */ @@ -3535,167 +2495,71 @@ cy_tiocmset(struct tty_struct *tty, struct file *file, { struct cyclades_port *info = tty->driver_data; struct cyclades_card *card; - int chip, channel, index; - void __iomem *base_addr; unsigned long flags; - struct FIRM_ID __iomem *firm_id; - struct ZFW_CTRL __iomem *zfw_ctrl; - struct BOARD_CTRL __iomem *board_ctrl; - struct CH_CTRL __iomem *ch_ctrl; - int retval; - if (serial_paranoia_check(info, tty->name, __FUNCTION__)) + if (serial_paranoia_check(info, tty->name, __func__)) return -ENODEV; card = info->card; - channel = (info->line) - (card->first_line); - if (!IS_CYC_Z(*card)) { - chip = channel >> 2; - channel &= 0x03; - index = card->bus_index; - base_addr = card->base_addr + (cy_chip_offset[chip] << index); + if (!cy_is_Z(card)) { + spin_lock_irqsave(&card->card_lock, flags); + cyy_change_rts_dtr(info, set, clear); + spin_unlock_irqrestore(&card->card_lock, flags); + } else { + struct CH_CTRL __iomem *ch_ctrl = info->u.cyz.ch_ctrl; + int retval, channel = info->line - card->first_line; + u32 rs; - if (set & TIOCM_RTS) { - spin_lock_irqsave(&card->card_lock, flags); - cy_writeb(base_addr + (CyCAR << index), - (u_char) channel); - if (info->rtsdtr_inv) { - cy_writeb(base_addr + (CyMSVR2 << index), - CyDTR); - } else { - cy_writeb(base_addr + (CyMSVR1 << index), - CyRTS); - } - spin_unlock_irqrestore(&card->card_lock, flags); - } - if (clear & TIOCM_RTS) { - spin_lock_irqsave(&card->card_lock, flags); - cy_writeb(base_addr + (CyCAR << index), - (u_char) channel); - if (info->rtsdtr_inv) { - cy_writeb(base_addr + (CyMSVR2 << index), - ~CyDTR); - } else { - cy_writeb(base_addr + (CyMSVR1 << index), - ~CyRTS); - } - spin_unlock_irqrestore(&card->card_lock, flags); - } + if (!cyz_is_loaded(card)) + return -ENODEV; + + spin_lock_irqsave(&card->card_lock, flags); + rs = readl(&ch_ctrl->rs_control); + if (set & TIOCM_RTS) + rs |= C_RS_RTS; + if (clear & TIOCM_RTS) + rs &= ~C_RS_RTS; if (set & TIOCM_DTR) { - spin_lock_irqsave(&card->card_lock, flags); - cy_writeb(base_addr + (CyCAR << index), - (u_char) channel); - if (info->rtsdtr_inv) { - cy_writeb(base_addr + (CyMSVR1 << index), - CyRTS); - } else { - cy_writeb(base_addr + (CyMSVR2 << index), - CyDTR); - } + rs |= C_RS_DTR; #ifdef CY_DEBUG_DTR - printk(KERN_DEBUG "cyc:set_modem_info raising DTR\n"); - printk(KERN_DEBUG " status: 0x%x, 0x%x\n", - readb(base_addr + (CyMSVR1 << index)), - readb(base_addr + (CyMSVR2 << index))); + printk(KERN_DEBUG "cyc:set_modem_info raising Z DTR\n"); #endif - spin_unlock_irqrestore(&card->card_lock, flags); } if (clear & TIOCM_DTR) { - spin_lock_irqsave(&card->card_lock, flags); - cy_writeb(base_addr + (CyCAR << index), - (u_char) channel); - if (info->rtsdtr_inv) { - cy_writeb(base_addr + (CyMSVR1 << index), - ~CyRTS); - } else { - cy_writeb(base_addr + (CyMSVR2 << index), - ~CyDTR); - } - -#ifdef CY_DEBUG_DTR - printk(KERN_DEBUG "cyc:set_modem_info dropping DTR\n"); - printk(KERN_DEBUG " status: 0x%x, 0x%x\n", - readb(base_addr + (CyMSVR1 << index)), - readb(base_addr + (CyMSVR2 << index))); -#endif - spin_unlock_irqrestore(&card->card_lock, flags); - } - } else { - base_addr = card->base_addr; - - firm_id = card->base_addr + ID_ADDRESS; - if (ISZLOADED(*card)) { - zfw_ctrl = card->base_addr + - (readl(&firm_id->zfwctrl_addr) & 0xfffff); - board_ctrl = &zfw_ctrl->board_ctrl; - ch_ctrl = zfw_ctrl->ch_ctrl; - - if (set & TIOCM_RTS) { - spin_lock_irqsave(&card->card_lock, flags); - cy_writel(&ch_ctrl[channel].rs_control, - readl(&ch_ctrl[channel].rs_control) | - C_RS_RTS); - spin_unlock_irqrestore(&card->card_lock, flags); - } - if (clear & TIOCM_RTS) { - spin_lock_irqsave(&card->card_lock, flags); - cy_writel(&ch_ctrl[channel].rs_control, - readl(&ch_ctrl[channel].rs_control) & - ~C_RS_RTS); - spin_unlock_irqrestore(&card->card_lock, flags); - } - if (set & TIOCM_DTR) { - spin_lock_irqsave(&card->card_lock, flags); - cy_writel(&ch_ctrl[channel].rs_control, - readl(&ch_ctrl[channel].rs_control) | - C_RS_DTR); -#ifdef CY_DEBUG_DTR - printk(KERN_DEBUG "cyc:set_modem_info raising " - "Z DTR\n"); -#endif - spin_unlock_irqrestore(&card->card_lock, flags); - } - if (clear & TIOCM_DTR) { - spin_lock_irqsave(&card->card_lock, flags); - cy_writel(&ch_ctrl[channel].rs_control, - readl(&ch_ctrl[channel].rs_control) & - ~C_RS_DTR); + rs &= ~C_RS_DTR; #ifdef CY_DEBUG_DTR - printk(KERN_DEBUG "cyc:set_modem_info clearing " - "Z DTR\n"); + printk(KERN_DEBUG "cyc:set_modem_info clearing " + "Z DTR\n"); #endif - spin_unlock_irqrestore(&card->card_lock, flags); - } - } else { - return -ENODEV; } - spin_lock_irqsave(&card->card_lock, flags); + cy_writel(&ch_ctrl->rs_control, rs); retval = cyz_issue_cmd(card, channel, C_CM_IOCTLM, 0L); + spin_unlock_irqrestore(&card->card_lock, flags); if (retval != 0) { printk(KERN_ERR "cyc:set_modem_info retval on ttyC%d " "was %x\n", info->line, retval); } - spin_unlock_irqrestore(&card->card_lock, flags); } return 0; -} /* cy_tiocmset */ +} /* * cy_break() --- routine which turns the break handling on or off */ -static void cy_break(struct tty_struct *tty, int break_state) +static int cy_break(struct tty_struct *tty, int break_state) { struct cyclades_port *info = tty->driver_data; struct cyclades_card *card; unsigned long flags; + int retval = 0; if (serial_paranoia_check(info, tty->name, "cy_break")) - return; + return -EINVAL; card = info->card; spin_lock_irqsave(&card->card_lock, flags); - if (!IS_CYC_Z(*card)) { + if (!cy_is_Z(card)) { /* Let the transmit ISR take care of this (since it requires stuffing characters into the output stream). */ @@ -3719,8 +2583,6 @@ static void cy_break(struct tty_struct *tty, int break_state) } } } else { - int retval; - if (break_state == -1) { retval = cyz_issue_cmd(card, info->line - card->first_line, @@ -3741,137 +2603,83 @@ static void cy_break(struct tty_struct *tty, int break_state) } } spin_unlock_irqrestore(&card->card_lock, flags); + return retval; } /* cy_break */ -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; - info->mon.char_count = 0; - info->mon.char_max = 0; - info->mon.char_last = 0; - return 0; -} /* get_mon_info */ - static int set_threshold(struct cyclades_port *info, unsigned long value) { - struct cyclades_card *card; - void __iomem *base_addr; - int channel, chip, index; + struct cyclades_card *card = info->card; unsigned long flags; - card = info->card; - channel = info->line - card->first_line; - if (!IS_CYC_Z(*card)) { - chip = channel >> 2; - channel &= 0x03; - index = card->bus_index; - base_addr = - card->base_addr + (cy_chip_offset[chip] << index); - + if (!cy_is_Z(card)) { info->cor3 &= ~CyREC_FIFO; info->cor3 |= value & CyREC_FIFO; spin_lock_irqsave(&card->card_lock, flags); - cy_writeb(base_addr + (CyCOR3 << index), info->cor3); - cyy_issue_cmd(base_addr, CyCOR_CHANGE | CyCOR3ch, index); + cyy_writeb(info, CyCOR3, info->cor3); + cyy_issue_cmd(info, CyCOR_CHANGE | CyCOR3ch); spin_unlock_irqrestore(&card->card_lock, flags); } return 0; } /* set_threshold */ -static int -get_threshold(struct cyclades_port *info, unsigned long __user * value) +static int get_threshold(struct cyclades_port *info, + unsigned long __user *value) { - struct cyclades_card *card; - void __iomem *base_addr; - int channel, chip, index; - unsigned long tmp; - - card = info->card; - channel = info->line - card->first_line; - if (!IS_CYC_Z(*card)) { - chip = channel >> 2; - channel &= 0x03; - index = card->bus_index; - base_addr = card->base_addr + (cy_chip_offset[chip] << index); + struct cyclades_card *card = info->card; - tmp = readb(base_addr + (CyCOR3 << index)) & CyREC_FIFO; + if (!cy_is_Z(card)) { + u8 tmp = cyy_readb(info, CyCOR3) & CyREC_FIFO; return put_user(tmp, value); } return 0; } /* get_threshold */ -static int -set_default_threshold(struct cyclades_port *info, unsigned long value) -{ - info->default_threshold = value & 0x0f; - return 0; -} /* set_default_threshold */ - -static int -get_default_threshold(struct cyclades_port *info, unsigned long __user * value) -{ - return put_user(info->default_threshold, value); -} /* get_default_threshold */ - static int set_timeout(struct cyclades_port *info, unsigned long value) { - struct cyclades_card *card; - void __iomem *base_addr; - int channel, chip, index; + struct cyclades_card *card = info->card; unsigned long flags; - card = info->card; - channel = info->line - card->first_line; - if (!IS_CYC_Z(*card)) { - chip = channel >> 2; - channel &= 0x03; - index = card->bus_index; - base_addr = card->base_addr + (cy_chip_offset[chip] << index); - + if (!cy_is_Z(card)) { spin_lock_irqsave(&card->card_lock, flags); - cy_writeb(base_addr + (CyRTPR << index), value & 0xff); + cyy_writeb(info, CyRTPR, value & 0xff); spin_unlock_irqrestore(&card->card_lock, flags); } return 0; } /* set_timeout */ -static int get_timeout(struct cyclades_port *info, unsigned long __user * value) +static int get_timeout(struct cyclades_port *info, + unsigned long __user *value) { - struct cyclades_card *card; - void __iomem *base_addr; - int channel, chip, index; - unsigned long tmp; - - card = info->card; - channel = info->line - card->first_line; - if (!IS_CYC_Z(*card)) { - chip = channel >> 2; - channel &= 0x03; - index = card->bus_index; - base_addr = card->base_addr + (cy_chip_offset[chip] << index); + struct cyclades_card *card = info->card; - tmp = readb(base_addr + (CyRTPR << index)); + if (!cy_is_Z(card)) { + u8 tmp = cyy_readb(info, CyRTPR); return put_user(tmp, value); } return 0; } /* get_timeout */ -static int set_default_timeout(struct cyclades_port *info, unsigned long value) +static int cy_cflags_changed(struct cyclades_port *info, unsigned long arg, + struct cyclades_icount *cprev) { - info->default_timeout = value & 0xff; - return 0; -} /* set_default_timeout */ + struct cyclades_icount cnow; + unsigned long flags; + int ret; -static int -get_default_timeout(struct cyclades_port *info, unsigned long __user * value) -{ - return put_user(info->default_timeout, value); -} /* get_default_timeout */ + spin_lock_irqsave(&info->card->card_lock, flags); + cnow = info->icount; /* atomic copy */ + spin_unlock_irqrestore(&info->card->card_lock, flags); + + ret = ((arg & TIOCM_RNG) && (cnow.rng != cprev->rng)) || + ((arg & TIOCM_DSR) && (cnow.dsr != cprev->dsr)) || + ((arg & TIOCM_CD) && (cnow.dcd != cprev->dcd)) || + ((arg & TIOCM_CTS) && (cnow.cts != cprev->cts)); + + *cprev = cnow; + + return ret; +} /* * This routine allows the tty driver to implement device- @@ -3883,8 +2691,7 @@ cy_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) { struct cyclades_port *info = tty->driver_data; - struct cyclades_icount cprev, cnow; /* kernel counter temps */ - struct serial_icounter_struct __user *p_cuser; /* user space */ + struct cyclades_icount cnow; /* kernel counter temps */ int ret_val = 0; unsigned long flags; void __user *argp = (void __user *)arg; @@ -3896,10 +2703,15 @@ cy_ioctl(struct tty_struct *tty, struct file *file, printk(KERN_DEBUG "cyc:cy_ioctl ttyC%d, cmd = %x arg = %lx\n", info->line, cmd, arg); #endif + lock_kernel(); switch (cmd) { case CYGETMON: - ret_val = get_mon_info(info, argp); + if (copy_to_user(argp, &info->mon, sizeof(info->mon))) { + ret_val = -EFAULT; + break; + } + memset(&info->mon, 0, sizeof(info->mon)); break; case CYGETTHRESH: ret_val = get_threshold(info, argp); @@ -3908,10 +2720,11 @@ cy_ioctl(struct tty_struct *tty, struct file *file, ret_val = set_threshold(info, arg); break; case CYGETDEFTHRESH: - ret_val = get_default_threshold(info, argp); + ret_val = put_user(info->default_threshold, + (unsigned long __user *)argp); break; case CYSETDEFTHRESH: - ret_val = set_default_threshold(info, arg); + info->default_threshold = arg & 0x0f; break; case CYGETTIMEOUT: ret_val = get_timeout(info, argp); @@ -3920,21 +2733,20 @@ cy_ioctl(struct tty_struct *tty, struct file *file, ret_val = set_timeout(info, arg); break; case CYGETDEFTIMEOUT: - ret_val = get_default_timeout(info, argp); + ret_val = put_user(info->default_timeout, + (unsigned long __user *)argp); break; case CYSETDEFTIMEOUT: - ret_val = set_default_timeout(info, arg); + info->default_timeout = arg & 0xff; break; case CYSETRFLOW: info->rflow = (int)arg; - ret_val = 0; break; case CYGETRFLOW: ret_val = info->rflow; break; case CYSETRTSDTR_INV: info->rtsdtr_inv = (int)arg; - ret_val = 0; break; case CYGETRTSDTR_INV: ret_val = info->rtsdtr_inv; @@ -3945,24 +2757,22 @@ cy_ioctl(struct tty_struct *tty, struct file *file, #ifndef CONFIG_CYZ_INTR case CYZSETPOLLCYCLE: cyz_polling_cycle = (arg * HZ) / 1000; - ret_val = 0; break; case CYZGETPOLLCYCLE: ret_val = (cyz_polling_cycle * 1000) / HZ; break; #endif /* CONFIG_CYZ_INTR */ case CYSETWAIT: - info->closing_wait = (unsigned short)arg *HZ / 100; - ret_val = 0; + info->port.closing_wait = (unsigned short)arg * HZ / 100; break; case CYGETWAIT: - ret_val = info->closing_wait / (HZ / 100); + ret_val = info->port.closing_wait / (HZ / 100); break; case TIOCGSERIAL: - ret_val = get_serial_info(info, argp); + ret_val = cy_get_serial_info(info, argp); break; case TIOCSSERIAL: - ret_val = set_serial_info(info, argp); + ret_val = cy_set_serial_info(info, tty, argp); break; case TIOCSERGETLSR: /* Get line status register */ ret_val = get_lsr_info(info, argp); @@ -3978,17 +2788,8 @@ cy_ioctl(struct tty_struct *tty, struct file *file, /* note the counters on entry */ cnow = info->icount; spin_unlock_irqrestore(&info->card->card_lock, flags); - ret_val = wait_event_interruptible(info->delta_msr_wait, ({ - cprev = cnow; - spin_lock_irqsave(&info->card->card_lock, flags); - cnow = info->icount; /* atomic copy */ - spin_unlock_irqrestore(&info->card->card_lock, flags); - - ((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || - ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || - ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || - ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts)); - })); + ret_val = wait_event_interruptible(info->port.delta_msr_wait, + cy_cflags_changed(info, arg, &cnow)); break; /* @@ -3997,54 +2798,37 @@ cy_ioctl(struct tty_struct *tty, struct file *file, * NB: both 1->0 and 0->1 transitions are counted except for * RI where only 0->1 is counted. */ - case TIOCGICOUNT: + case TIOCGICOUNT: { + struct serial_icounter_struct sic = { }; + spin_lock_irqsave(&info->card->card_lock, flags); cnow = info->icount; spin_unlock_irqrestore(&info->card->card_lock, flags); - p_cuser = argp; - ret_val = put_user(cnow.cts, &p_cuser->cts); - if (ret_val) - return ret_val; - ret_val = put_user(cnow.dsr, &p_cuser->dsr); - if (ret_val) - return ret_val; - ret_val = put_user(cnow.rng, &p_cuser->rng); - if (ret_val) - return ret_val; - ret_val = put_user(cnow.dcd, &p_cuser->dcd); - if (ret_val) - return ret_val; - ret_val = put_user(cnow.rx, &p_cuser->rx); - if (ret_val) - return ret_val; - ret_val = put_user(cnow.tx, &p_cuser->tx); - if (ret_val) - return ret_val; - ret_val = put_user(cnow.frame, &p_cuser->frame); - if (ret_val) - return ret_val; - ret_val = put_user(cnow.overrun, &p_cuser->overrun); - if (ret_val) - return ret_val; - ret_val = put_user(cnow.parity, &p_cuser->parity); - if (ret_val) - return ret_val; - ret_val = put_user(cnow.brk, &p_cuser->brk); - if (ret_val) - return ret_val; - ret_val = put_user(cnow.buf_overrun, &p_cuser->buf_overrun); - if (ret_val) - return ret_val; - ret_val = 0; + + sic.cts = cnow.cts; + sic.dsr = cnow.dsr; + sic.rng = cnow.rng; + sic.dcd = cnow.dcd; + sic.rx = cnow.rx; + sic.tx = cnow.tx; + sic.frame = cnow.frame; + sic.overrun = cnow.overrun; + sic.parity = cnow.parity; + sic.brk = cnow.brk; + sic.buf_overrun = cnow.buf_overrun; + + if (copy_to_user(argp, &sic, sizeof(sic))) + ret_val = -EFAULT; break; + } default: ret_val = -ENOIOCTLCMD; } + unlock_kernel(); #ifdef CY_DEBUG_OTHER printk(KERN_DEBUG "cyc:cy_ioctl done\n"); #endif - return ret_val; } /* cy_ioctl */ @@ -4062,7 +2846,7 @@ static void cy_set_termios(struct tty_struct *tty, struct ktermios *old_termios) printk(KERN_DEBUG "cyc:cy_set_termios ttyC%d\n", info->line); #endif - set_line_char(info); + cy_set_line_char(info, tty); if ((old_termios->c_cflag & CRTSCTS) && !(tty->termios->c_cflag & CRTSCTS)) { @@ -4078,7 +2862,7 @@ static void cy_set_termios(struct tty_struct *tty, struct ktermios *old_termios) */ if (!(old_termios->c_cflag & CLOCAL) && (tty->termios->c_cflag & CLOCAL)) - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); #endif } /* cy_set_termios */ @@ -4102,7 +2886,7 @@ static void cy_send_xchar(struct tty_struct *tty, char ch) card = info->card; channel = info->line - card->first_line; - if (IS_CYC_Z(*card)) { + if (cy_is_Z(card)) { if (ch == STOP_CHAR(tty)) cyz_issue_cmd(card, channel, C_CM_SENDXOFF, 0L); else if (ch == START_CHAR(tty)) @@ -4119,8 +2903,6 @@ static void cy_throttle(struct tty_struct *tty) struct cyclades_port *info = tty->driver_data; struct cyclades_card *card; unsigned long flags; - void __iomem *base_addr; - int chip, channel, index; #ifdef CY_DEBUG_THROTTLE char buf[64]; @@ -4129,38 +2911,22 @@ static void cy_throttle(struct tty_struct *tty) tty->ldisc.chars_in_buffer(tty), info->line); #endif - if (serial_paranoia_check(info, tty->name, "cy_throttle")) { + if (serial_paranoia_check(info, tty->name, "cy_throttle")) return; - } card = info->card; if (I_IXOFF(tty)) { - if (!IS_CYC_Z(*card)) + if (!cy_is_Z(card)) cy_send_xchar(tty, STOP_CHAR(tty)); else info->throttle = 1; } if (tty->termios->c_cflag & CRTSCTS) { - channel = info->line - card->first_line; - if (!IS_CYC_Z(*card)) { - chip = channel >> 2; - channel &= 0x03; - index = card->bus_index; - base_addr = card->base_addr + - (cy_chip_offset[chip] << index); - + if (!cy_is_Z(card)) { spin_lock_irqsave(&card->card_lock, flags); - cy_writeb(base_addr + (CyCAR << index), - (u_char) channel); - if (info->rtsdtr_inv) { - cy_writeb(base_addr + (CyMSVR2 << index), - ~CyDTR); - } else { - cy_writeb(base_addr + (CyMSVR1 << index), - ~CyRTS); - } + cyy_change_rts_dtr(info, 0, TIOCM_RTS); spin_unlock_irqrestore(&card->card_lock, flags); } else { info->throttle = 1; @@ -4178,19 +2944,16 @@ static void cy_unthrottle(struct tty_struct *tty) struct cyclades_port *info = tty->driver_data; struct cyclades_card *card; unsigned long flags; - void __iomem *base_addr; - int chip, channel, index; #ifdef CY_DEBUG_THROTTLE char buf[64]; printk(KERN_DEBUG "cyc:unthrottle %s: %ld...ttyC%d\n", - tty_name(tty, buf), tty->ldisc.chars_in_buffer(tty),info->line); + tty_name(tty, buf), tty_chars_in_buffer(tty), info->line); #endif - if (serial_paranoia_check(info, tty->name, "cy_unthrottle")) { + if (serial_paranoia_check(info, tty->name, "cy_unthrottle")) return; - } if (I_IXOFF(tty)) { if (info->x_char) @@ -4201,24 +2964,9 @@ static void cy_unthrottle(struct tty_struct *tty) if (tty->termios->c_cflag & CRTSCTS) { card = info->card; - channel = info->line - card->first_line; - if (!IS_CYC_Z(*card)) { - chip = channel >> 2; - channel &= 0x03; - index = card->bus_index; - base_addr = card->base_addr + - (cy_chip_offset[chip] << index); - + if (!cy_is_Z(card)) { spin_lock_irqsave(&card->card_lock, flags); - cy_writeb(base_addr + (CyCAR << index), - (u_char) channel); - if (info->rtsdtr_inv) { - cy_writeb(base_addr + (CyMSVR2 << index), - CyDTR); - } else { - cy_writeb(base_addr + (CyMSVR1 << index), - CyRTS); - } + cyy_change_rts_dtr(info, TIOCM_RTS, 0); spin_unlock_irqrestore(&card->card_lock, flags); } else { info->throttle = 0; @@ -4233,8 +2981,7 @@ static void cy_stop(struct tty_struct *tty) { struct cyclades_card *cinfo; struct cyclades_port *info = tty->driver_data; - void __iomem *base_addr; - int chip, channel, index; + int channel; unsigned long flags; #ifdef CY_DEBUG_OTHER @@ -4246,17 +2993,10 @@ static void cy_stop(struct tty_struct *tty) cinfo = info->card; channel = info->line - cinfo->first_line; - if (!IS_CYC_Z(*cinfo)) { - index = cinfo->bus_index; - chip = channel >> 2; - channel &= 0x03; - base_addr = cinfo->base_addr + (cy_chip_offset[chip] << index); - + if (!cy_is_Z(cinfo)) { spin_lock_irqsave(&cinfo->card_lock, flags); - cy_writeb(base_addr + (CyCAR << index), - (u_char)(channel & 0x0003)); /* index channel */ - cy_writeb(base_addr + (CySRER << index), - readb(base_addr + (CySRER << index)) & ~CyTxRdy); + cyy_writeb(info, CyCAR, channel & 0x03); + cyy_writeb(info, CySRER, cyy_readb(info, CySRER) & ~CyTxRdy); spin_unlock_irqrestore(&cinfo->card_lock, flags); } } /* cy_stop */ @@ -4265,8 +3005,7 @@ static void cy_start(struct tty_struct *tty) { struct cyclades_card *cinfo; struct cyclades_port *info = tty->driver_data; - void __iomem *base_addr; - int chip, channel, index; + int channel; unsigned long flags; #ifdef CY_DEBUG_OTHER @@ -4278,54 +3017,14 @@ static void cy_start(struct tty_struct *tty) cinfo = info->card; channel = info->line - cinfo->first_line; - index = cinfo->bus_index; - if (!IS_CYC_Z(*cinfo)) { - chip = channel >> 2; - channel &= 0x03; - base_addr = cinfo->base_addr + (cy_chip_offset[chip] << index); - + if (!cy_is_Z(cinfo)) { spin_lock_irqsave(&cinfo->card_lock, flags); - cy_writeb(base_addr + (CyCAR << index), (u_char) (channel & 0x0003)); /* index channel */ - cy_writeb(base_addr + (CySRER << index), - readb(base_addr + (CySRER << index)) | CyTxRdy); + cyy_writeb(info, CyCAR, channel & 0x03); + cyy_writeb(info, CySRER, cyy_readb(info, CySRER) | CyTxRdy); spin_unlock_irqrestore(&cinfo->card_lock, flags); } } /* cy_start */ -static void cy_flush_buffer(struct tty_struct *tty) -{ - struct cyclades_port *info = tty->driver_data; - struct cyclades_card *card; - int channel, retval; - unsigned long flags; - -#ifdef CY_DEBUG_IO - printk(KERN_DEBUG "cyc:cy_flush_buffer ttyC%d\n", info->line); -#endif - - if (serial_paranoia_check(info, tty->name, "cy_flush_buffer")) - return; - - card = info->card; - channel = info->line - card->first_line; - - spin_lock_irqsave(&card->card_lock, flags); - info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; - spin_unlock_irqrestore(&card->card_lock, flags); - - if (IS_CYC_Z(*card)) { /* If it is a Z card, flush the on-board - buffers as well */ - spin_lock_irqsave(&card->card_lock, flags); - retval = cyz_issue_cmd(card, channel, C_CM_FLUSH_TX, 0L); - if (retval != 0) { - printk(KERN_ERR "cyc: flush_buffer retval on ttyC%d " - "was %x\n", info->line, retval); - } - spin_unlock_irqrestore(&card->card_lock, flags); - } - tty_wakeup(tty); -} /* cy_flush_buffer */ - /* * cy_hangup() --- called by tty_hangup() when a hangup is signaled. */ @@ -4341,17 +3040,84 @@ static void cy_hangup(struct tty_struct *tty) return; cy_flush_buffer(tty); - shutdown(info); - info->count = 0; -#ifdef CY_DEBUG_COUNT - printk(KERN_DEBUG "cyc:cy_hangup (%d): setting count to 0\n", - current->pid); -#endif - info->tty = NULL; - info->flags &= ~ASYNC_NORMAL_ACTIVE; - wake_up_interruptible(&info->open_wait); + cy_shutdown(info, tty); + tty_port_hangup(&info->port); } /* cy_hangup */ +static int cyy_carrier_raised(struct tty_port *port) +{ + struct cyclades_port *info = container_of(port, struct cyclades_port, + port); + struct cyclades_card *cinfo = info->card; + unsigned long flags; + int channel = info->line - cinfo->first_line; + u32 cd; + + spin_lock_irqsave(&cinfo->card_lock, flags); + cyy_writeb(info, CyCAR, channel & 0x03); + cd = cyy_readb(info, CyMSVR1) & CyDCD; + spin_unlock_irqrestore(&cinfo->card_lock, flags); + + return cd; +} + +static void cyy_dtr_rts(struct tty_port *port, int raise) +{ + struct cyclades_port *info = container_of(port, struct cyclades_port, + port); + struct cyclades_card *cinfo = info->card; + unsigned long flags; + + spin_lock_irqsave(&cinfo->card_lock, flags); + cyy_change_rts_dtr(info, raise ? TIOCM_RTS | TIOCM_DTR : 0, + raise ? 0 : TIOCM_RTS | TIOCM_DTR); + spin_unlock_irqrestore(&cinfo->card_lock, flags); +} + +static int cyz_carrier_raised(struct tty_port *port) +{ + struct cyclades_port *info = container_of(port, struct cyclades_port, + port); + + return readl(&info->u.cyz.ch_ctrl->rs_status) & C_RS_DCD; +} + +static void cyz_dtr_rts(struct tty_port *port, int raise) +{ + struct cyclades_port *info = container_of(port, struct cyclades_port, + port); + struct cyclades_card *cinfo = info->card; + struct CH_CTRL __iomem *ch_ctrl = info->u.cyz.ch_ctrl; + int ret, channel = info->line - cinfo->first_line; + u32 rs; + + rs = readl(&ch_ctrl->rs_control); + if (raise) + rs |= C_RS_RTS | C_RS_DTR; + else + rs &= ~(C_RS_RTS | C_RS_DTR); + cy_writel(&ch_ctrl->rs_control, rs); + ret = cyz_issue_cmd(cinfo, channel, C_CM_IOCTLM, 0L); + if (ret != 0) + printk(KERN_ERR "%s: retval on ttyC%d was %x\n", + __func__, info->line, ret); +#ifdef CY_DEBUG_DTR + printk(KERN_DEBUG "%s: raising Z DTR\n", __func__); +#endif +} + +static const struct tty_port_operations cyy_port_ops = { + .carrier_raised = cyy_carrier_raised, + .dtr_rts = cyy_dtr_rts, + .shutdown = cy_do_close, +}; + +static const struct tty_port_operations cyz_port_ops = { + .carrier_raised = cyz_carrier_raised, + .dtr_rts = cyz_dtr_rts, + .shutdown = cy_do_close, +}; + /* * --------------------------------------------------------------------- * cy_init() and friends @@ -4363,50 +3129,44 @@ static void cy_hangup(struct tty_struct *tty) static int __devinit cy_init_card(struct cyclades_card *cinfo) { struct cyclades_port *info; - u32 uninitialized_var(mailbox); - unsigned int nports; - unsigned short chip_number; - int uninitialized_var(index), port; + unsigned int channel, port; spin_lock_init(&cinfo->card_lock); + cinfo->intr_enabled = 0; - if (IS_CYC_Z(*cinfo)) { /* Cyclades-Z */ - mailbox = readl(&((struct RUNTIME_9060 __iomem *) - cinfo->ctl_addr)->mail_box_0); - nports = (mailbox == ZE_V1) ? ZE_V1_NPORTS : 8; - cinfo->intr_enabled = 0; - cinfo->nports = 0; /* Will be correctly set later, after - Z FW is loaded */ - } else { - index = cinfo->bus_index; - nports = cinfo->nports = CyPORTS_PER_CHIP * cinfo->num_chips; - } - - cinfo->ports = kzalloc(sizeof(*cinfo->ports) * nports, GFP_KERNEL); + cinfo->ports = kcalloc(cinfo->nports, sizeof(*cinfo->ports), + GFP_KERNEL); if (cinfo->ports == NULL) { printk(KERN_ERR "Cyclades: cannot allocate ports\n"); - cinfo->nports = 0; return -ENOMEM; } - for (port = cinfo->first_line; port < cinfo->first_line + nports; - port++) { - info = &cinfo->ports[port - cinfo->first_line]; + for (channel = 0, port = cinfo->first_line; channel < cinfo->nports; + channel++, port++) { + info = &cinfo->ports[channel]; + tty_port_init(&info->port); info->magic = CYCLADES_MAGIC; info->card = cinfo; info->line = port; - info->flags = STD_COM_FLAGS; - info->closing_wait = CLOSING_WAIT_DELAY; - info->close_delay = 5 * HZ / 10; - init_waitqueue_head(&info->open_wait); - init_waitqueue_head(&info->close_wait); + info->port.closing_wait = CLOSING_WAIT_DELAY; + info->port.close_delay = 5 * HZ / 10; + info->port.flags = STD_COM_FLAGS; init_completion(&info->shutdown_wait); - init_waitqueue_head(&info->delta_msr_wait); - if (IS_CYC_Z(*cinfo)) { + if (cy_is_Z(cinfo)) { + struct FIRM_ID *firm_id = cinfo->base_addr + ID_ADDRESS; + struct ZFW_CTRL *zfw_ctrl; + + info->port.ops = &cyz_port_ops; info->type = PORT_STARTECH; - if (mailbox == ZO_V1) + + zfw_ctrl = cinfo->base_addr + + (readl(&firm_id->zfwctrl_addr) & 0xfffff); + info->u.cyz.ch_ctrl = &zfw_ctrl->ch_ctrl[channel]; + info->u.cyz.buf_ctrl = &zfw_ctrl->buf_ctrl[channel]; + + if (cinfo->hw_ver == ZO_V1) info->xmit_fifo_size = CYZ_FIFO_SIZE; else info->xmit_fifo_size = 4 * CYZ_FIFO_SIZE; @@ -4415,17 +3175,22 @@ static int __devinit cy_init_card(struct cyclades_card *cinfo) cyz_rx_restart, (unsigned long)info); #endif } else { + unsigned short chip_number; + int index = cinfo->bus_index; + + info->port.ops = &cyy_port_ops; info->type = PORT_CIRRUS; info->xmit_fifo_size = CyMAX_CHAR_FIFO; info->cor1 = CyPARITY_NONE | Cy_1_STOP | Cy_8_BITS; info->cor2 = CyETC; info->cor3 = 0x08; /* _very_ small rcv threshold */ - chip_number = (port - cinfo->first_line) / 4; - if ((info->chip_rev = readb(cinfo->base_addr + - (cy_chip_offset[chip_number] << - index) + (CyGFRCR << index))) >= - CD1400_REV_J) { + chip_number = channel / CyPORTS_PER_CHIP; + info->u.cyy.base_addr = cinfo->base_addr + + (cy_chip_offset[chip_number] << index); + info->chip_rev = cyy_readb(info, CyGFRCR); + + if (info->chip_rev >= CD1400_REV_J) { /* It is a CD1400 rev. J or later */ info->tbpr = baud_bpr_60[13]; /* Tx BPR */ info->tco = baud_co_60[13]; /* Tx CO */ @@ -4446,7 +3211,7 @@ static int __devinit cy_init_card(struct cyclades_card *cinfo) } #ifndef CONFIG_CYZ_INTR - if (IS_CYC_Z(*cinfo) && !timer_pending(&cyz_timerlist)) { + if (cy_is_Z(cinfo) && !timer_pending(&cyz_timerlist)) { mod_timer(&cyz_timerlist, jiffies + 1); #ifdef CY_PCI_DEBUG printk(KERN_DEBUG "Cyclades-Z polling initialized\n"); @@ -4470,7 +3235,8 @@ static unsigned short __devinit cyy_init_card(void __iomem *true_base_addr, /* Cy_ClrIntr is 0x1800 */ udelay(500L); - for (chip_number = 0; chip_number < CyMAX_CHIPS_PER_CARD; chip_number++) { + for (chip_number = 0; chip_number < CyMAX_CHIPS_PER_CARD; + chip_number++) { base_addr = true_base_addr + (cy_chip_offset[chip_number] << index); mdelay(1); @@ -4571,12 +3337,11 @@ static int __init cy_detect_isa(void) /* scan the address table probing for Cyclom-Y/ISA boards */ for (i = 0; i < NR_ISA_ADDRS; i++) { unsigned int isa_address = cy_isa_addresses[i]; - if (isa_address == 0x0000) { + if (isa_address == 0x0000) return nboard; - } /* probe for CD1400... */ - cy_isa_address = ioremap(isa_address, CyISA_Ywin); + cy_isa_address = ioremap_nocache(isa_address, CyISA_Ywin); if (cy_isa_address == NULL) { printk(KERN_ERR "Cyclom-Y/ISA: can't remap base " "address\n"); @@ -4637,11 +3402,12 @@ static int __init cy_detect_isa(void) /* set cy_card */ cy_card[j].base_addr = cy_isa_address; - cy_card[j].ctl_addr = NULL; + cy_card[j].ctl_addr.p9050 = NULL; cy_card[j].irq = (int)cy_isa_irq; cy_card[j].bus_index = 0; cy_card[j].first_line = cy_next_channel; - cy_card[j].num_chips = cy_isa_nchan / 4; + cy_card[j].num_chips = cy_isa_nchan / CyPORTS_PER_CHIP; + cy_card[j].nports = cy_isa_nchan; if (cy_init_card(&cy_card[j])) { cy_card[j].base_addr = NULL; free_irq(cy_isa_irq, &cy_card[j]); @@ -4683,7 +3449,7 @@ static inline int __devinit cyc_isfwstr(const char *str, unsigned int size) return 0; } -static inline void __devinit cyz_fpga_copy(void __iomem *fpga, u8 *data, +static inline void __devinit cyz_fpga_copy(void __iomem *fpga, const u8 *data, unsigned int size) { for (; size > 0; size--) { @@ -4716,10 +3482,10 @@ static int __devinit __cyz_load_fw(const struct firmware *fw, const char *name, const u32 mailbox, void __iomem *base, void __iomem *fpga) { - void *ptr = fw->data; - struct zfile_header *h = ptr; - struct zfile_config *c, *cs; - struct zfile_block *b, *bs; + const void *ptr = fw->data; + const struct zfile_header *h = ptr; + const struct zfile_config *c, *cs; + const struct zfile_block *b, *bs; unsigned int a, tmp, len = fw->size; #define BAD_FW KERN_ERR "Bad firmware: " if (len < sizeof(*h)) { @@ -4797,7 +3563,7 @@ static int __devinit cyz_load_fw(struct pci_dev *pdev, void __iomem *base_addr, struct CUSTOM_REG __iomem *cust = base_addr; struct ZFW_CTRL __iomem *pt_zfwctrl; void __iomem *tmp; - u32 mailbox, status; + u32 mailbox, status, nchan; unsigned int i; int retval; @@ -4809,7 +3575,7 @@ static int __devinit cyz_load_fw(struct pci_dev *pdev, void __iomem *base_addr, /* Check whether the firmware is already loaded and running. If positive, skip this board */ - if (Z_FPGA_LOADED(ctl_addr) && readl(&fid->signature) == ZFIRM_ID) { + if (__cyz_fpga_loaded(ctl_addr) && readl(&fid->signature) == ZFIRM_ID) { u32 cntval = readl(base_addr + 0x190); udelay(100); @@ -4828,7 +3594,7 @@ static int __devinit cyz_load_fw(struct pci_dev *pdev, void __iomem *base_addr, mailbox = readl(&ctl_addr->mail_box_0); - if (mailbox == 0 || Z_FPGA_LOADED(ctl_addr)) { + if (mailbox == 0 || __cyz_fpga_loaded(ctl_addr)) { /* stops CPU and set window to beginning of RAM */ cy_writel(&ctl_addr->loc_addr_base, WIN_CREG); cy_writel(&cust->cpu_stop, 0); @@ -4844,7 +3610,7 @@ static int __devinit cyz_load_fw(struct pci_dev *pdev, void __iomem *base_addr, base_addr); if (retval) goto err_rel; - if (!Z_FPGA_LOADED(ctl_addr)) { + if (!__cyz_fpga_loaded(ctl_addr)) { dev_err(&pdev->dev, "fw upload successful, but fw is " "not loaded\n"); goto err_rel; @@ -4863,12 +3629,10 @@ static int __devinit cyz_load_fw(struct pci_dev *pdev, void __iomem *base_addr, if (mailbox != 0) { /* set window to last 512K of RAM */ cy_writel(&ctl_addr->loc_addr_base, WIN_RAM + RAM_SIZE); - //sleep(1); for (tmp = base_addr; tmp < base_addr + RAM_SIZE; tmp++) cy_writeb(tmp, 255); /* set window to beginning of RAM */ cy_writel(&ctl_addr->loc_addr_base, WIN_RAM); - //sleep(1); } retval = __cyz_load_fw(fw, "Cyclom-Z", mailbox, base_addr, NULL); @@ -4905,7 +3669,7 @@ static int __devinit cyz_load_fw(struct pci_dev *pdev, void __iomem *base_addr, "system before loading the new FW to the " "Cyclades-Z.\n"); - if (Z_FPGA_LOADED(ctl_addr)) + if (__cyz_fpga_loaded(ctl_addr)) plx_init(pdev, irq, ctl_addr); retval = -EIO; @@ -4920,16 +3684,16 @@ static int __devinit cyz_load_fw(struct pci_dev *pdev, void __iomem *base_addr, base_addr + ID_ADDRESS, readl(&fid->zfwctrl_addr), base_addr + readl(&fid->zfwctrl_addr)); + nchan = readl(&pt_zfwctrl->board_ctrl.n_channel); dev_info(&pdev->dev, "Cyclades-Z FW loaded: version = %x, ports = %u\n", - readl(&pt_zfwctrl->board_ctrl.fw_version), - readl(&pt_zfwctrl->board_ctrl.n_channel)); + readl(&pt_zfwctrl->board_ctrl.fw_version), nchan); - if (readl(&pt_zfwctrl->board_ctrl.n_channel) == 0) { + if (nchan == 0) { dev_warn(&pdev->dev, "no Cyclades-Z ports were found. Please " "check the connection between the Z host card and the " "serial expanders.\n"); - if (Z_FPGA_LOADED(ctl_addr)) + if (__cyz_fpga_loaded(ctl_addr)) plx_init(pdev, irq, ctl_addr); dev_info(&pdev->dev, "Null number of ports detected. Board " @@ -4950,9 +3714,7 @@ static int __devinit cyz_load_fw(struct pci_dev *pdev, void __iomem *base_addr, cy_writel(&ctl_addr->intr_ctrl_stat, readl(&ctl_addr->intr_ctrl_stat) | 0x00030800UL); - plx_init(pdev, irq, ctl_addr); - - return 0; + return nchan; err_rel: release_firmware(fw); err: @@ -4964,7 +3726,7 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev, { void __iomem *addr0 = NULL, *addr2 = NULL; char *card_name = NULL; - u32 mailbox; + u32 uninitialized_var(mailbox); unsigned int device_id, nchan = 0, card_no, i; unsigned char plx_ver; int retval, irq; @@ -5011,12 +3773,14 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev, device_id == PCI_DEVICE_ID_CYCLOM_Y_Hi) { card_name = "Cyclom-Y"; - addr0 = pci_iomap(pdev, 0, CyPCI_Yctl); + addr0 = ioremap_nocache(pci_resource_start(pdev, 0), + CyPCI_Yctl); if (addr0 == NULL) { dev_err(&pdev->dev, "can't remap ctl region\n"); goto err_reg; } - addr2 = pci_iomap(pdev, 2, CyPCI_Ywin); + addr2 = ioremap_nocache(pci_resource_start(pdev, 2), + CyPCI_Ywin); if (addr2 == NULL) { dev_err(&pdev->dev, "can't remap base region\n"); goto err_unmap; @@ -5026,26 +3790,28 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev, if (nchan == 0) { dev_err(&pdev->dev, "Cyclom-Y PCI host card with no " "Serial-Modules\n"); - return -EIO; + goto err_unmap; } } else if (device_id == PCI_DEVICE_ID_CYCLOM_Z_Hi) { struct RUNTIME_9060 __iomem *ctl_addr; - ctl_addr = addr0 = pci_iomap(pdev, 0, CyPCI_Zctl); + ctl_addr = addr0 = ioremap_nocache(pci_resource_start(pdev, 0), + CyPCI_Zctl); if (addr0 == NULL) { dev_err(&pdev->dev, "can't remap ctl region\n"); goto err_reg; } /* Disable interrupts on the PLX before resetting it */ - cy_writew(addr0 + 0x68, readw(addr0 + 0x68) & ~0x0900); + cy_writew(&ctl_addr->intr_ctrl_stat, + readw(&ctl_addr->intr_ctrl_stat) & ~0x0900); plx_init(pdev, irq, addr0); - mailbox = (u32)readl(&ctl_addr->mail_box_0); + mailbox = readl(&ctl_addr->mail_box_0); - addr2 = pci_iomap(pdev, 2, mailbox == ZE_V1 ? - CyPCI_Ze_win : CyPCI_Zwin); + addr2 = ioremap_nocache(pci_resource_start(pdev, 2), + mailbox == ZE_V1 ? CyPCI_Ze_win : CyPCI_Zwin); if (addr2 == NULL) { dev_err(&pdev->dev, "can't remap base region\n"); goto err_unmap; @@ -5053,12 +3819,8 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev, if (mailbox == ZE_V1) { card_name = "Cyclades-Ze"; - - readl(&ctl_addr->mail_box_0); - nchan = ZE_V1_NPORTS; } else { card_name = "Cyclades-8Zo"; - #ifdef CY_PCI_DEBUG if (mailbox == ZO_V1) { cy_writel(&ctl_addr->loc_addr_base, WIN_CREG); @@ -5080,15 +3842,12 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev, */ if ((mailbox == ZO_V1) || (mailbox == ZO_V2)) cy_writel(addr2 + ID_ADDRESS, 0L); - - retval = cyz_load_fw(pdev, addr2, addr0, irq); - if (retval) - goto err_unmap; - /* This must be a Cyclades-8Zo/PCI. The extendable - version will have a different device_id and will - be allocated its maximum number of ports. */ - nchan = 8; } + + retval = cyz_load_fw(pdev, addr2, addr0, irq); + if (retval <= 0) + goto err_unmap; + nchan = retval; } if ((cy_next_channel + nchan) > NR_PORTS) { @@ -5118,8 +3877,16 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev, dev_err(&pdev->dev, "could not allocate IRQ\n"); goto err_unmap; } - cy_card[card_no].num_chips = nchan / 4; + cy_card[card_no].num_chips = nchan / CyPORTS_PER_CHIP; } else { + struct FIRM_ID __iomem *firm_id = addr2 + ID_ADDRESS; + struct ZFW_CTRL __iomem *zfw_ctrl; + + zfw_ctrl = addr2 + (readl(&firm_id->zfwctrl_addr) & 0xfffff); + + cy_card[card_no].hw_ver = mailbox; + cy_card[card_no].num_chips = (unsigned int)-1; + cy_card[card_no].board_ctrl = &zfw_ctrl->board_ctrl; #ifdef CONFIG_CYZ_INTR /* allocate IRQ only if board has an IRQ */ if (irq != 0 && irq != 255) { @@ -5132,15 +3899,15 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev, } } #endif /* CONFIG_CYZ_INTR */ - cy_card[card_no].num_chips = -1; } /* set cy_card */ cy_card[card_no].base_addr = addr2; - cy_card[card_no].ctl_addr = addr0; + cy_card[card_no].ctl_addr.p9050 = addr0; cy_card[card_no].irq = irq; cy_card[card_no].bus_index = 1; cy_card[card_no].first_line = cy_next_channel; + cy_card[card_no].nports = nchan; retval = cy_init_card(&cy_card[card_no]); if (retval) goto err_null; @@ -5153,17 +3920,20 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev, plx_ver = readb(addr2 + CyPLX_VER) & 0x0f; switch (plx_ver) { case PLX_9050: - cy_writeb(addr0 + 0x4c, 0x43); break; case PLX_9060: case PLX_9080: default: /* Old boards, use PLX_9060 */ - plx_init(pdev, irq, addr0); - cy_writew(addr0 + 0x68, readw(addr0 + 0x68) | 0x0900); + { + struct RUNTIME_9060 __iomem *ctl_addr = addr0; + plx_init(pdev, irq, ctl_addr); + cy_writew(&ctl_addr->intr_ctrl_stat, + readw(&ctl_addr->intr_ctrl_stat) | 0x0900); break; } + } } dev_info(&pdev->dev, "%s/PCI #%d found: %d channels starting from " @@ -5177,9 +3947,9 @@ err_null: cy_card[card_no].base_addr = NULL; free_irq(irq, &cy_card[card_no]); err_unmap: - pci_iounmap(pdev, addr0); + iounmap(addr0); if (addr2) - pci_iounmap(pdev, addr2); + iounmap(addr2); err_reg: pci_release_regions(pdev); err_dis: @@ -5194,22 +3964,23 @@ static void __devexit cy_pci_remove(struct pci_dev *pdev) unsigned int i; /* non-Z with old PLX */ - if (!IS_CYC_Z(*cinfo) && (readb(cinfo->base_addr + CyPLX_VER) & 0x0f) == + if (!cy_is_Z(cinfo) && (readb(cinfo->base_addr + CyPLX_VER) & 0x0f) == PLX_9050) - cy_writeb(cinfo->ctl_addr + 0x4c, 0); + cy_writeb(cinfo->ctl_addr.p9050 + 0x4c, 0); else #ifndef CONFIG_CYZ_INTR - if (!IS_CYC_Z(*cinfo)) + if (!cy_is_Z(cinfo)) #endif - cy_writew(cinfo->ctl_addr + 0x68, - readw(cinfo->ctl_addr + 0x68) & ~0x0900); + cy_writew(&cinfo->ctl_addr.p9060->intr_ctrl_stat, + readw(&cinfo->ctl_addr.p9060->intr_ctrl_stat) & + ~0x0900); - pci_iounmap(pdev, cinfo->base_addr); - if (cinfo->ctl_addr) - pci_iounmap(pdev, cinfo->ctl_addr); + iounmap(cinfo->base_addr); + if (cinfo->ctl_addr.p9050) + iounmap(cinfo->ctl_addr.p9050); if (cinfo->irq #ifndef CONFIG_CYZ_INTR - && !IS_CYC_Z(*cinfo) + && !cy_is_Z(cinfo) #endif /* CONFIG_CYZ_INTR */ ) free_irq(cinfo->irq, cinfo); @@ -5231,64 +4002,64 @@ static struct pci_driver cy_pci_driver = { }; #endif -static int -cyclades_get_proc_info(char *buf, char **start, off_t offset, int length, - int *eof, void *data) +static int cyclades_proc_show(struct seq_file *m, void *v) { struct cyclades_port *info; unsigned int i, j; - int len = 0; - off_t begin = 0; - off_t pos = 0; - int size; __u32 cur_jifs = jiffies; - size = sprintf(buf, "Dev TimeOpen BytesOut IdleOut BytesIn " + seq_puts(m, "Dev TimeOpen BytesOut IdleOut BytesIn " "IdleIn Overruns Ldisc\n"); - pos += size; - len += size; - /* Output one line for each known port */ for (i = 0; i < NR_CARDS; i++) for (j = 0; j < cy_card[i].nports; j++) { info = &cy_card[i].ports[j]; - if (info->count) - size = sprintf(buf + len, "%3d %8lu %10lu %8lu " - "%10lu %8lu %9lu %6ld\n", info->line, + if (info->port.count) { + /* XXX is the ldisc num worth this? */ + struct tty_struct *tty; + struct tty_ldisc *ld; + int num = 0; + tty = tty_port_tty_get(&info->port); + if (tty) { + ld = tty_ldisc_ref(tty); + if (ld) { + num = ld->ops->num; + tty_ldisc_deref(ld); + } + tty_kref_put(tty); + } + seq_printf(m, "%3d %8lu %10lu %8lu " + "%10lu %8lu %9lu %6d\n", info->line, (cur_jifs - info->idle_stats.in_use) / HZ, info->idle_stats.xmit_bytes, (cur_jifs - info->idle_stats.xmit_idle)/ HZ, info->idle_stats.recv_bytes, (cur_jifs - info->idle_stats.recv_idle)/ HZ, info->idle_stats.overruns, - (long)info->tty->ldisc.num); - else - size = sprintf(buf + len, "%3d %8lu %10lu %8lu " + num); + } else + seq_printf(m, "%3d %8lu %10lu %8lu " "%10lu %8lu %9lu %6ld\n", info->line, 0L, 0L, 0L, 0L, 0L, 0L, 0L); - len += size; - pos = begin + len; - - if (pos < offset) { - len = 0; - begin = pos; - } - if (pos > offset + length) - goto done; } - *eof = 1; -done: - *start = buf + (offset - begin); /* Start of wanted data */ - len -= (offset - begin); /* Start slop */ - if (len > length) - len = length; /* Ending slop */ - if (len < 0) - len = 0; - return len; + return 0; +} + +static int cyclades_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, cyclades_proc_show, NULL); } +static const struct file_operations cyclades_proc_fops = { + .owner = THIS_MODULE, + .open = cyclades_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + /* The serial driver boot-time initialization code! Hardware I/O ports are mapped to character special devices on a first found, first allocated manner. That is, this code searches @@ -5325,9 +4096,9 @@ static const struct tty_operations cy_ops = { .hangup = cy_hangup, .break_ctl = cy_break, .wait_until_sent = cy_wait_until_sent, - .read_proc = cyclades_get_proc_info, .tiocmget = cy_tiocmget, .tiocmset = cy_tiocmset, + .proc_fops = &cyclades_proc_fops, }; static int __init cy_init(void) @@ -5376,13 +4147,13 @@ static int __init cy_init(void) #ifdef CONFIG_PCI /* look for pci boards */ retval = pci_register_driver(&cy_pci_driver); - if (retval && !nboards) - goto err_unr; + if (retval && !nboards) { + tty_unregister_driver(cy_serial_driver); + goto err_frtty; + } #endif return 0; -err_unr: - tty_unregister_driver(cy_serial_driver); err_frtty: put_tty_driver(cy_serial_driver); err: @@ -5392,13 +4163,14 @@ err: static void __exit cy_cleanup_module(void) { struct cyclades_card *card; - int i, e1; + unsigned int i, e1; #ifndef CONFIG_CYZ_INTR del_timer_sync(&cyz_timerlist); #endif /* CONFIG_CYZ_INTR */ - if ((e1 = tty_unregister_driver(cy_serial_driver))) + e1 = tty_unregister_driver(cy_serial_driver); + if (e1) printk(KERN_ERR "failed to unregister Cyclades serial " "driver(%d)\n", e1); @@ -5412,16 +4184,15 @@ static void __exit cy_cleanup_module(void) /* clear interrupt */ cy_writeb(card->base_addr + Cy_ClrIntr, 0); iounmap(card->base_addr); - if (card->ctl_addr) - iounmap(card->ctl_addr); + if (card->ctl_addr.p9050) + iounmap(card->ctl_addr.p9050); if (card->irq #ifndef CONFIG_CYZ_INTR - && !IS_CYC_Z(*card) + && !cy_is_Z(card) #endif /* CONFIG_CYZ_INTR */ ) free_irq(card->irq, card); - for (e1 = card->first_line; - e1 < card->first_line + + for (e1 = card->first_line; e1 < card->first_line + card->nports; e1++) tty_unregister_device(cy_serial_driver, e1); kfree(card->ports); @@ -5436,3 +4207,4 @@ module_exit(cy_cleanup_module); MODULE_LICENSE("GPL"); MODULE_VERSION(CY_VERSION); +MODULE_ALIAS_CHARDEV_MAJOR(CYCLADES_MAJOR);