cyclades: coding style & review
Signed-off-by: Alan Cox <alan@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>hifive-unleashed-5.1
Alan Cox
Linus Torvalds
parent
e5b393e4f1
commit
15ed6cc0ba
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@ -21,7 +21,6 @@
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*
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* This version supports shared IRQ's (only for PCI boards).
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*
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* $Log: cyclades.c,v $
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* Prevent users from opening non-existing Z ports.
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*
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* Revision 2.3.2.8 2000/07/06 18:14:16 ivan
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@ -62,7 +61,7 @@
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* Driver now makes sure that the constant SERIAL_XMIT_SIZE is defined;
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*
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* Revision 2.3.2.2 1999/10/01 11:27:43 ivan
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* Fixed bug in cyz_poll that would make all ports but port 0
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* Fixed bug in cyz_poll that would make all ports but port 0
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* unable to transmit/receive data (Cyclades-Z only);
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* Implemented logic to prevent the RX buffer from being stuck with data
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* due to a driver / firmware race condition in interrupt op mode
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@ -83,25 +82,25 @@
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* Revision 2.3.1.1 1999/07/15 16:45:53 ivan
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* Removed CY_PROC conditional compilation;
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* Implemented SMP-awareness for the driver;
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* Implemented a new ISA IRQ autoprobe that uses the irq_probe_[on|off]
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* Implemented a new ISA IRQ autoprobe that uses the irq_probe_[on|off]
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* functions;
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* The driver now accepts memory addresses (maddr=0xMMMMM) and IRQs
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* (irq=NN) as parameters (only for ISA boards);
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* Fixed bug in set_line_char that would prevent the Cyclades-Z
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* Fixed bug in set_line_char that would prevent the Cyclades-Z
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* ports from being configured at speeds above 115.2Kbps;
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* Fixed bug in cy_set_termios that would prevent XON/XOFF flow control
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* switching from working properly;
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* The driver now only prints IRQ info for the Cyclades-Z if it's
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* The driver now only prints IRQ info for the Cyclades-Z if it's
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* configured to work in interrupt mode;
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*
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* Revision 2.2.2.3 1999/06/28 11:13:29 ivan
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* Added support for interrupt mode operation for the Z cards;
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* Removed the driver inactivity control for the Z;
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* Added a missing MOD_DEC_USE_COUNT in the cy_open function for when
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* Added a missing MOD_DEC_USE_COUNT in the cy_open function for when
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* the Z firmware is not loaded yet;
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* Replaced the "manual" Z Tx flush buffer by a call to a FW command of
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* Replaced the "manual" Z Tx flush buffer by a call to a FW command of
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* same functionality;
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* Implemented workaround for IRQ setting loss on the PCI configuration
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* Implemented workaround for IRQ setting loss on the PCI configuration
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* registers after a PCI bridge EEPROM reload (affects PLX9060 only);
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*
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* Revision 2.2.2.2 1999/05/14 17:18:15 ivan
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@ -112,22 +111,22 @@
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* BREAK implementation changed in order to make use of the 'break_ctl'
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* TTY facility;
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* Fixed typo in TTY structure field 'driver_name';
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* Included a PCI bridge reset and EEPROM reload in the board
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* Included a PCI bridge reset and EEPROM reload in the board
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* initialization code (for both Y and Z series).
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*
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* Revision 2.2.2.1 1999/04/08 16:17:43 ivan
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* Fixed a bug in cy_wait_until_sent that was preventing the port to be
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* Fixed a bug in cy_wait_until_sent that was preventing the port to be
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* closed properly after a SIGINT;
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* Module usage counter scheme revisited;
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* Added support to the upcoming Y PCI boards (i.e., support to additional
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* PCI Device ID's).
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*
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*
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* Revision 2.2.1.10 1999/01/20 16:14:29 ivan
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* Removed all unnecessary page-alignement operations in ioremap calls
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* (ioremap is currently safe for these operations).
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*
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* Revision 2.2.1.9 1998/12/30 18:18:30 ivan
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* Changed access to PLX PCI bridge registers from I/O to MMIO, in
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* Changed access to PLX PCI bridge registers from I/O to MMIO, in
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* order to make PLX9050-based boards work with certain motherboards.
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*
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* Revision 2.2.1.8 1998/11/13 12:46:20 ivan
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@ -148,7 +147,7 @@
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* Fixed Cyclom-4Yo hardware detection bug.
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*
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* Revision 2.2.1.4 1998/08/04 11:02:50 ivan
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* /proc/cyclades implementation with great collaboration of
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* /proc/cyclades implementation with great collaboration of
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* Marc Lewis <marc@blarg.net>;
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* cyy_interrupt was changed to avoid occurrence of kernel oopses
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* during PPP operation.
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@ -157,7 +156,7 @@
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* General code review in order to comply with 2.1 kernel standards;
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* data loss prevention for slow devices revisited (cy_wait_until_sent
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* was created);
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* removed conditional compilation for new/old PCI structure support
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* removed conditional compilation for new/old PCI structure support
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* (now the driver only supports the new PCI structure).
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*
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* Revision 2.2.1.1 1998/03/19 16:43:12 ivan
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@ -168,7 +167,7 @@
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* cleaned up the data loss fix;
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* fixed XON/XOFF handling once more (Cyclades-Z);
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* general review of the driver routines;
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* introduction of a mechanism to prevent data loss with slow
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* introduction of a mechanism to prevent data loss with slow
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* printers, by forcing a delay before closing the port.
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*
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* Revision 2.1.1.2 1998/02/17 16:50:00 ivan
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@ -182,12 +181,12 @@
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* Code review for the module cleanup routine;
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* fixed RTS and DTR status report for new CD1400's in get_modem_info;
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* includes anonymous changes regarding signal_pending.
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*
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*
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* Revision 2.1 1997/11/01 17:42:41 ivan
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* Changes in the driver to support Alpha systems (except 8Zo V_1);
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* BREAK fix for the Cyclades-Z boards;
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* driver inactivity control by FW implemented;
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* introduction of flag that allows driver to take advantage of
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* introduction of flag that allows driver to take advantage of
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* a special CD1400 feature related to HW flow control;
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* added support for the CD1400 rev. J (Cyclom-Y boards);
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* introduction of ioctls to:
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@ -196,17 +195,17 @@
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* - adjust the polling interval (Cyclades-Z);
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*
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* Revision 1.36.4.33 1997/06/27 19:00:00 ivan
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* Fixes related to kernel version conditional
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* Fixes related to kernel version conditional
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* compilation.
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*
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*
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* Revision 1.36.4.32 1997/06/14 19:30:00 ivan
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* Compatibility issues between kernels 2.0.x and
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* Compatibility issues between kernels 2.0.x and
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* 2.1.x (mainly related to clear_bit function).
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*
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*
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* Revision 1.36.4.31 1997/06/03 15:30:00 ivan
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* Changes to define the memory window according to the
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* Changes to define the memory window according to the
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* board type.
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*
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*
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* Revision 1.36.4.30 1997/05/16 15:30:00 daniel
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* Changes to support new cycladesZ boards.
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*
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@ -624,7 +623,7 @@
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#undef CY_PCI_DEBUG
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/*
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* Include section
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* Include section
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*/
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#include <linux/module.h>
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#include <linux/errno.h>
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@ -649,9 +648,9 @@
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#include <linux/firmware.h>
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#include <asm/system.h>
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#include <asm/io.h>
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#include <linux/io.h>
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#include <asm/irq.h>
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#include <asm/uaccess.h>
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#include <linux/uaccess.h>
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#include <linux/kernel.h>
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#include <linux/pci.h>
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@ -668,10 +667,10 @@ static void cy_send_xchar(struct tty_struct *tty, char ch);
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((readl(&((struct RUNTIME_9060 __iomem *) \
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((card).ctl_addr))->init_ctrl) & (1<<17)) != 0)
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#define ISZLOADED(card) (((ZO_V1==readl(&((struct RUNTIME_9060 __iomem *) \
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#define ISZLOADED(card) (((ZO_V1 == readl(&((struct RUNTIME_9060 __iomem *) \
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((card).ctl_addr))->mail_box_0)) || \
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Z_FPGA_CHECK(card)) && \
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(ZFIRM_ID==readl(&((struct FIRM_ID __iomem *) \
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(ZFIRM_ID == readl(&((struct FIRM_ID __iomem *) \
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((card).base_addr+ID_ADDRESS))->signature)))
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#ifndef SERIAL_XMIT_SIZE
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@ -809,12 +808,12 @@ static char baud_cor3[] = { /* receive threshold */
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/*
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* The Cyclades driver implements HW flow control as any serial driver.
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* The cyclades_port structure member rflow and the vector rflow_thr
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* allows us to take advantage of a special feature in the CD1400 to avoid
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* data loss even when the system interrupt latency is too high. These flags
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* are to be used only with very special applications. Setting these flags
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* requires the use of a special cable (DTR and RTS reversed). In the new
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* CD1400-based boards (rev. 6.00 or later), there is no need for special
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* The cyclades_port structure member rflow and the vector rflow_thr
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* allows us to take advantage of a special feature in the CD1400 to avoid
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* data loss even when the system interrupt latency is too high. These flags
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* are to be used only with very special applications. Setting these flags
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* requires the use of a special cable (DTR and RTS reversed). In the new
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* CD1400-based boards (rev. 6.00 or later), there is no need for special
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* cables.
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*/
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@ -841,14 +840,22 @@ static int cy_chip_offset[] = { 0x0000,
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#ifdef CONFIG_PCI
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static struct pci_device_id cy_pci_dev_id[] __devinitdata = {
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{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Y_Lo) }, /* PCI < 1Mb */
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{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Y_Hi) }, /* PCI > 1Mb */
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{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_4Y_Lo) }, /* 4Y PCI < 1Mb */
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{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_4Y_Hi) }, /* 4Y PCI > 1Mb */
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{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_8Y_Lo) }, /* 8Y PCI < 1Mb */
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{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_8Y_Hi) }, /* 8Y PCI > 1Mb */
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{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Z_Lo) }, /* Z PCI < 1Mb */
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{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Z_Hi) }, /* Z PCI > 1Mb */
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/* PCI < 1Mb */
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{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Y_Lo) },
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/* PCI > 1Mb */
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{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Y_Hi) },
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/* 4Y PCI < 1Mb */
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{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_4Y_Lo) },
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/* 4Y PCI > 1Mb */
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{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_4Y_Hi) },
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/* 8Y PCI < 1Mb */
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{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_8Y_Lo) },
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/* 8Y PCI > 1Mb */
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{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_8Y_Hi) },
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/* Z PCI < 1Mb */
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{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Z_Lo) },
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/* Z PCI > 1Mb */
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{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Z_Hi) },
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{ } /* end of table */
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};
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MODULE_DEVICE_TABLE(pci, cy_pci_dev_id);
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@ -905,15 +912,14 @@ static inline int serial_paranoia_check(struct cyclades_port *info,
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This function is only called from inside spinlock-protected code.
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*/
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static int cyy_issue_cmd(void __iomem * base_addr, u_char cmd, int index)
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static int cyy_issue_cmd(void __iomem *base_addr, u_char cmd, int index)
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{
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unsigned int i;
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/* Check to see that the previous command has completed */
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for (i = 0; i < 100; i++) {
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if (readb(base_addr + (CyCCR << index)) == 0) {
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if (readb(base_addr + (CyCCR << index)) == 0)
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break;
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}
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udelay(10L);
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}
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/* if the CCR never cleared, the previous command
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@ -929,7 +935,7 @@ static int cyy_issue_cmd(void __iomem * base_addr, u_char cmd, int index)
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#ifdef CONFIG_ISA
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/* ISA interrupt detection code */
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static unsigned detect_isa_irq(void __iomem * address)
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static unsigned detect_isa_irq(void __iomem *address)
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{
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int irq;
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unsigned long irqs, flags;
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@ -1038,7 +1044,7 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip,
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if (info->flags & ASYNC_SAK)
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do_SAK(tty);
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} else if (data & CyFRAME) {
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tty_insert_flip_char( tty,
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tty_insert_flip_char(tty,
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readb(base_addr + (CyRDSR <<
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index)), TTY_FRAME);
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info->icount.rx++;
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@ -1320,7 +1326,8 @@ static irqreturn_t cyy_interrupt(int irq, void *dev_id)
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if (unlikely(cinfo == NULL)) {
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#ifdef CY_DEBUG_INTERRUPTS
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printk(KERN_DEBUG "cyy_interrupt: spurious interrupt %d\n",irq);
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printk(KERN_DEBUG "cyy_interrupt: spurious interrupt %d\n",
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irq);
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#endif
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return IRQ_NONE; /* spurious interrupt */
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}
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@ -1375,12 +1382,12 @@ static irqreturn_t cyy_interrupt(int irq, void *dev_id)
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/***********************************************************/
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/********* End of block of Cyclom-Y specific code **********/
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/******** Start of block of Cyclades-Z specific code *********/
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/******** Start of block of Cyclades-Z specific code *******/
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/***********************************************************/
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static int
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cyz_fetch_msg(struct cyclades_card *cinfo,
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__u32 * channel, __u8 * cmd, __u32 * param)
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__u32 *channel, __u8 *cmd, __u32 *param)
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{
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struct FIRM_ID __iomem *firm_id;
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struct ZFW_CTRL __iomem *zfw_ctrl;
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@ -1388,9 +1395,8 @@ cyz_fetch_msg(struct cyclades_card *cinfo,
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unsigned long loc_doorbell;
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firm_id = cinfo->base_addr + ID_ADDRESS;
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if (!ISZLOADED(*cinfo)) {
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if (!ISZLOADED(*cinfo))
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return -1;
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}
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zfw_ctrl = cinfo->base_addr + (readl(&firm_id->zfwctrl_addr) & 0xfffff);
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board_ctrl = &zfw_ctrl->board_ctrl;
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@ -1418,9 +1424,9 @@ cyz_issue_cmd(struct cyclades_card *cinfo,
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unsigned int index;
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firm_id = cinfo->base_addr + ID_ADDRESS;
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if (!ISZLOADED(*cinfo)) {
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if (!ISZLOADED(*cinfo))
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return -1;
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}
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zfw_ctrl = cinfo->base_addr + (readl(&firm_id->zfwctrl_addr) & 0xfffff);
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board_ctrl = &zfw_ctrl->board_ctrl;
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@ -1428,9 +1434,8 @@ cyz_issue_cmd(struct cyclades_card *cinfo,
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pci_doorbell =
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&((struct RUNTIME_9060 __iomem *)(cinfo->ctl_addr))->pci_doorbell;
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while ((readl(pci_doorbell) & 0xff) != 0) {
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if (index++ == 1000) {
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if (index++ == 1000)
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return (int)(readl(pci_doorbell) & 0xff);
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}
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udelay(50L);
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}
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cy_writel(&board_ctrl->hcmd_channel, channel);
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@ -1504,7 +1509,8 @@ static void cyz_handle_rx(struct cyclades_port *info,
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while (len--) {
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data = readb(cinfo->base_addr + rx_bufaddr +
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new_rx_get);
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new_rx_get = (new_rx_get + 1)& (rx_bufsize - 1);
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new_rx_get = (new_rx_get + 1) &
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(rx_bufsize - 1);
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tty_insert_flip_char(tty, data, TTY_NORMAL);
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info->idle_stats.recv_bytes++;
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info->icount.rx++;
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@ -1636,7 +1642,8 @@ static void cyz_handle_cmd(struct cyclades_card *cinfo)
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special_count = 0;
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delta_count = 0;
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info = &cinfo->ports[channel];
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if ((tty = info->tty) == NULL)
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tty = info->tty;
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if (tty == NULL)
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continue;
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ch_ctrl = &(zfw_ctrl->ch_ctrl[channel]);
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@ -1732,7 +1739,8 @@ static irqreturn_t cyz_interrupt(int irq, void *dev_id)
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if (unlikely(cinfo == NULL)) {
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#ifdef CY_DEBUG_INTERRUPTS
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printk(KERN_DEBUG "cyz_interrupt: spurious interrupt %d\n",irq);
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printk(KERN_DEBUG "cyz_interrupt: spurious interrupt %d\n",
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irq);
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#endif
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return IRQ_NONE; /* spurious interrupt */
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}
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@ -1851,9 +1859,8 @@ static int startup(struct cyclades_port *info)
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}
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if (!info->type) {
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if (info->tty) {
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if (info->tty)
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set_bit(TTY_IO_ERROR, &info->tty->flags);
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}
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free_page(page);
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goto errout;
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}
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@ -1904,9 +1911,8 @@ static int startup(struct cyclades_port *info)
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readb(base_addr + (CySRER << index)) | CyRxData);
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info->flags |= ASYNC_INITIALIZED;
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if (info->tty) {
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if (info->tty)
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clear_bit(TTY_IO_ERROR, &info->tty->flags);
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}
|
||||
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));
|
||||
|
|
@ -1925,9 +1931,8 @@ static int startup(struct cyclades_port *info)
|
|||
base_addr = card->base_addr;
|
||||
|
||||
firm_id = base_addr + ID_ADDRESS;
|
||||
if (!ISZLOADED(*card)) {
|
||||
if (!ISZLOADED(*card))
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
zfw_ctrl = card->base_addr +
|
||||
(readl(&firm_id->zfwctrl_addr) & 0xfffff);
|
||||
|
|
@ -1990,9 +1995,8 @@ static int startup(struct cyclades_port *info)
|
|||
/* enable send, recv, modem !!! */
|
||||
|
||||
info->flags |= ASYNC_INITIALIZED;
|
||||
if (info->tty) {
|
||||
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));
|
||||
|
|
@ -2061,9 +2065,8 @@ static void shutdown(struct cyclades_port *info)
|
|||
void __iomem *base_addr;
|
||||
int chip, channel, index;
|
||||
|
||||
if (!(info->flags & ASYNC_INITIALIZED)) {
|
||||
if (!(info->flags & ASYNC_INITIALIZED))
|
||||
return;
|
||||
}
|
||||
|
||||
card = info->card;
|
||||
channel = info->line - card->first_line;
|
||||
|
|
@ -2105,9 +2108,8 @@ static void shutdown(struct cyclades_port *info)
|
|||
/* it may be appropriate to clear _XMIT at
|
||||
some later date (after testing)!!! */
|
||||
|
||||
if (info->tty) {
|
||||
if (info->tty)
|
||||
set_bit(TTY_IO_ERROR, &info->tty->flags);
|
||||
}
|
||||
info->flags &= ~ASYNC_INITIALIZED;
|
||||
spin_unlock_irqrestore(&card->card_lock, flags);
|
||||
} else {
|
||||
|
|
@ -2124,9 +2126,8 @@ static void shutdown(struct cyclades_port *info)
|
|||
#endif
|
||||
|
||||
firm_id = base_addr + ID_ADDRESS;
|
||||
if (!ISZLOADED(*card)) {
|
||||
if (!ISZLOADED(*card))
|
||||
return;
|
||||
}
|
||||
|
||||
zfw_ctrl = card->base_addr +
|
||||
(readl(&firm_id->zfwctrl_addr) & 0xfffff);
|
||||
|
|
@ -2157,9 +2158,8 @@ static void shutdown(struct cyclades_port *info)
|
|||
#endif
|
||||
}
|
||||
|
||||
if (info->tty) {
|
||||
if (info->tty)
|
||||
set_bit(TTY_IO_ERROR, &info->tty->flags);
|
||||
}
|
||||
info->flags &= ~ASYNC_INITIALIZED;
|
||||
|
||||
spin_unlock_irqrestore(&card->card_lock, flags);
|
||||
|
|
@ -2204,7 +2204,8 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
|
|||
* 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))) {
|
||||
if ((filp->f_flags & O_NONBLOCK) ||
|
||||
(tty->flags & (1 << TTY_IO_ERROR))) {
|
||||
info->flags |= ASYNC_NORMAL_ACTIVE;
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -2301,7 +2302,8 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
|
|||
return -EINVAL;
|
||||
}
|
||||
|
||||
zfw_ctrl = base_addr + (readl(&firm_id->zfwctrl_addr)& 0xfffff);
|
||||
zfw_ctrl = base_addr + (readl(&firm_id->zfwctrl_addr)
|
||||
& 0xfffff);
|
||||
board_ctrl = &zfw_ctrl->board_ctrl;
|
||||
ch_ctrl = zfw_ctrl->ch_ctrl;
|
||||
|
||||
|
|
@ -2378,9 +2380,9 @@ static int cy_open(struct tty_struct *tty, struct file *filp)
|
|||
int retval;
|
||||
|
||||
line = tty->index;
|
||||
if ((tty->index < 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)
|
||||
|
|
@ -2388,9 +2390,8 @@ 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
|
||||
|
|
@ -2456,9 +2457,9 @@ static int cy_open(struct tty_struct *tty, struct file *filp)
|
|||
#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);
|
||||
|
|
@ -2482,9 +2483,8 @@ static int cy_open(struct tty_struct *tty, struct file *filp)
|
|||
* Start up serial port
|
||||
*/
|
||||
retval = startup(info);
|
||||
if (retval) {
|
||||
if (retval)
|
||||
return retval;
|
||||
}
|
||||
|
||||
retval = block_til_ready(tty, filp, info);
|
||||
if (retval) {
|
||||
|
|
@ -2591,9 +2591,8 @@ static void cy_close(struct tty_struct *tty, struct file *filp)
|
|||
printk(KERN_DEBUG "cyc:cy_close ttyC%d\n", info->line);
|
||||
#endif
|
||||
|
||||
if (!info || serial_paranoia_check(info, tty->name, "cy_close")) {
|
||||
if (!info || serial_paranoia_check(info, tty->name, "cy_close"))
|
||||
return;
|
||||
}
|
||||
|
||||
card = info->card;
|
||||
|
||||
|
|
@ -2641,9 +2640,9 @@ static void cy_close(struct tty_struct *tty, struct file *filp)
|
|||
*/
|
||||
tty->closing = 1;
|
||||
spin_unlock_irqrestore(&card->card_lock, flags);
|
||||
if (info->closing_wait != CY_CLOSING_WAIT_NONE) {
|
||||
if (info->closing_wait != CY_CLOSING_WAIT_NONE)
|
||||
tty_wait_until_sent(tty, info->closing_wait);
|
||||
}
|
||||
|
||||
spin_lock_irqsave(&card->card_lock, flags);
|
||||
|
||||
if (!IS_CYC_Z(*card)) {
|
||||
|
|
@ -2657,15 +2656,16 @@ static void cy_close(struct tty_struct *tty, struct file *filp)
|
|||
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 */
|
||||
/* 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);
|
||||
spin_lock_irqsave(&card->card_lock, flags);
|
||||
}
|
||||
} else {
|
||||
#ifdef Z_WAKE
|
||||
/* Waiting for on-board buffers to be empty before closing the port */
|
||||
/* 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 =
|
||||
|
|
@ -2738,9 +2738,8 @@ 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)
|
||||
return 0;
|
||||
|
|
@ -2766,9 +2765,9 @@ 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 */
|
||||
|
||||
|
|
@ -2810,7 +2809,7 @@ static void cy_put_char(struct tty_struct *tty, unsigned char ch)
|
|||
|
||||
/*
|
||||
* 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)
|
||||
{
|
||||
|
|
@ -2950,12 +2949,12 @@ static void set_line_char(struct cyclades_port *info)
|
|||
int baud, baud_rate = 0;
|
||||
int i;
|
||||
|
||||
if (!info->tty || !info->tty->termios) {
|
||||
if (!info->tty || !info->tty->termios)
|
||||
return;
|
||||
}
|
||||
if (info->line == -1) {
|
||||
|
||||
if (info->line == -1)
|
||||
return;
|
||||
}
|
||||
|
||||
cflag = info->tty->termios->c_cflag;
|
||||
iflag = info->tty->termios->c_iflag;
|
||||
|
||||
|
|
@ -2994,13 +2993,11 @@ 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) ==
|
||||
ASYNC_SPD_CUST) {
|
||||
|
|
@ -3059,18 +3056,16 @@ 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) {
|
||||
|
|
@ -3123,7 +3118,8 @@ static void set_line_char(struct cyclades_port *info)
|
|||
cyy_issue_cmd(base_addr, CyCOR_CHANGE | CyCOR1ch | CyCOR2ch |
|
||||
CyCOR3ch, index);
|
||||
|
||||
cy_writeb(base_addr + (CyCAR << index), (u_char) channel); /* !!! Is this needed? */
|
||||
/* !!! Is this needed? */
|
||||
cy_writeb(base_addr + (CyCAR << index), (u_char) channel);
|
||||
cy_writeb(base_addr + (CyRTPR << index),
|
||||
(info->default_timeout ? info->default_timeout : 0x02));
|
||||
/* 10ms rx timeout */
|
||||
|
|
@ -3191,9 +3187,8 @@ static void set_line_char(struct cyclades_port *info)
|
|||
#endif
|
||||
}
|
||||
|
||||
if (info->tty) {
|
||||
if (info->tty)
|
||||
clear_bit(TTY_IO_ERROR, &info->tty->flags);
|
||||
}
|
||||
spin_unlock_irqrestore(&card->card_lock, flags);
|
||||
|
||||
} else {
|
||||
|
|
@ -3206,9 +3201,8 @@ static void set_line_char(struct cyclades_port *info)
|
|||
int retval;
|
||||
|
||||
firm_id = card->base_addr + ID_ADDRESS;
|
||||
if (!ISZLOADED(*card)) {
|
||||
if (!ISZLOADED(*card))
|
||||
return;
|
||||
}
|
||||
|
||||
zfw_ctrl = card->base_addr +
|
||||
(readl(&firm_id->zfwctrl_addr) & 0xfffff);
|
||||
|
|
@ -3268,14 +3262,12 @@ 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) {
|
||||
|
|
@ -3305,11 +3297,10 @@ static void set_line_char(struct cyclades_port *info)
|
|||
}
|
||||
|
||||
/* CD sensitivity */
|
||||
if (cflag & CLOCAL) {
|
||||
if (cflag & CLOCAL)
|
||||
info->flags &= ~ASYNC_CHECK_CD;
|
||||
} else {
|
||||
else
|
||||
info->flags |= ASYNC_CHECK_CD;
|
||||
}
|
||||
|
||||
if (baud == 0) { /* baud rate is zero, turn off line */
|
||||
cy_writel(&ch_ctrl->rs_control,
|
||||
|
|
@ -3325,21 +3316,20 @@ 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) {
|
||||
if (info->tty)
|
||||
clear_bit(TTY_IO_ERROR, &info->tty->flags);
|
||||
}
|
||||
}
|
||||
} /* set_line_char */
|
||||
|
||||
static int
|
||||
get_serial_info(struct cyclades_port *info,
|
||||
struct serial_struct __user * retinfo)
|
||||
struct serial_struct __user *retinfo)
|
||||
{
|
||||
struct serial_struct tmp;
|
||||
struct cyclades_card *cinfo = info->card;
|
||||
|
|
@ -3363,7 +3353,7 @@ get_serial_info(struct cyclades_port *info,
|
|||
|
||||
static int
|
||||
set_serial_info(struct cyclades_port *info,
|
||||
struct serial_struct __user * new_info)
|
||||
struct serial_struct __user *new_info)
|
||||
{
|
||||
struct serial_struct new_serial;
|
||||
struct cyclades_port old_info;
|
||||
|
|
@ -3417,7 +3407,7 @@ 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;
|
||||
|
|
@ -3731,8 +3721,8 @@ static void cy_break(struct tty_struct *tty, int break_state)
|
|||
spin_unlock_irqrestore(&card->card_lock, flags);
|
||||
} /* cy_break */
|
||||
|
||||
static int
|
||||
get_mon_info(struct cyclades_port *info, struct cyclades_monitor __user * mon)
|
||||
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)))
|
||||
|
|
@ -3771,8 +3761,8 @@ static int set_threshold(struct cyclades_port *info, unsigned long value)
|
|||
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;
|
||||
|
|
@ -3793,15 +3783,15 @@ get_threshold(struct cyclades_port *info, unsigned long __user * value)
|
|||
return 0;
|
||||
} /* get_threshold */
|
||||
|
||||
static int
|
||||
set_default_threshold(struct cyclades_port *info, unsigned long value)
|
||||
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)
|
||||
static int get_default_threshold(struct cyclades_port *info,
|
||||
unsigned long __user *value)
|
||||
{
|
||||
return put_user(info->default_threshold, value);
|
||||
} /* get_default_threshold */
|
||||
|
|
@ -3828,7 +3818,8 @@ static int set_timeout(struct cyclades_port *info, unsigned long value)
|
|||
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;
|
||||
|
|
@ -3855,8 +3846,8 @@ static int set_default_timeout(struct cyclades_port *info, unsigned long value)
|
|||
return 0;
|
||||
} /* set_default_timeout */
|
||||
|
||||
static int
|
||||
get_default_timeout(struct cyclades_port *info, unsigned long __user * value)
|
||||
static int get_default_timeout(struct cyclades_port *info,
|
||||
unsigned long __user *value)
|
||||
{
|
||||
return put_user(info->default_timeout, value);
|
||||
} /* get_default_timeout */
|
||||
|
|
@ -3941,7 +3932,7 @@ cy_ioctl(struct tty_struct *tty, struct file *file,
|
|||
break;
|
||||
#endif /* CONFIG_CYZ_INTR */
|
||||
case CYSETWAIT:
|
||||
info->closing_wait = (unsigned short)arg *HZ / 100;
|
||||
info->closing_wait = (unsigned short)arg * HZ / 100;
|
||||
ret_val = 0;
|
||||
break;
|
||||
case CYGETWAIT:
|
||||
|
|
@ -4118,9 +4109,8 @@ 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;
|
||||
|
||||
|
|
@ -4174,12 +4164,11 @@ static void cy_unthrottle(struct tty_struct *tty)
|
|||
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)
|
||||
|
|
@ -4274,7 +4263,8 @@ static void cy_start(struct tty_struct *tty)
|
|||
base_addr = cinfo->base_addr + (cy_chip_offset[chip] << index);
|
||||
|
||||
spin_lock_irqsave(&cinfo->card_lock, flags);
|
||||
cy_writeb(base_addr + (CyCAR << index), (u_char) (channel & 0x0003)); /* index channel */
|
||||
cy_writeb(base_addr + (CyCAR << index),
|
||||
(u_char) (channel & 0x0003)); /* index channel */
|
||||
cy_writeb(base_addr + (CySRER << index),
|
||||
readb(base_addr + (CySRER << index)) | CyTxRdy);
|
||||
spin_unlock_irqrestore(&cinfo->card_lock, flags);
|
||||
|
|
@ -4411,10 +4401,11 @@ static int __devinit cy_init_card(struct cyclades_card *cinfo)
|
|||
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) {
|
||||
info->chip_rev = readb(cinfo->base_addr +
|
||||
(cy_chip_offset[chip_number] << index) +
|
||||
(CyGFRCR << index));
|
||||
|
||||
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 */
|
||||
|
|
@ -4459,7 +4450,8 @@ 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);
|
||||
|
|
@ -4560,9 +4552,8 @@ 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);
|
||||
|
|
@ -4852,12 +4843,10 @@ 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);
|
||||
|
|
@ -5387,7 +5376,8 @@ static void __exit cy_cleanup_module(void)
|
|||
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);
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue