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Subject[PATCH] 2.5.48 s390 (15/16): sclp driver part 1.
Date
Reworked sclp driver part 1.

diff -urN linux-2.5.48/arch/s390/defconfig linux-2.5.48-s390/arch/s390/defconfig
--- linux-2.5.48/arch/s390/defconfig Mon Nov 18 20:11:09 2002
+++ linux-2.5.48-s390/arch/s390/defconfig Mon Nov 18 20:14:32 2002
@@ -108,9 +108,10 @@
# CONFIG_TN3270 is not set
CONFIG_TN3215=y
CONFIG_TN3215_CONSOLE=y
-CONFIG_HWC=y
-CONFIG_HWC_CONSOLE=y
-CONFIG_HWC_CPI=m
+CONFIG_SCLP=y
+CONFIG_SCLP_TTY=y
+CONFIG_SCLP_CONSOLE=y
+CONFIG_SCLP_CPI=m
CONFIG_S390_TAPE=m

#
diff -urN linux-2.5.48/arch/s390/kernel/setup.c linux-2.5.48-s390/arch/s390/kernel/setup.c
--- linux-2.5.48/arch/s390/kernel/setup.c Mon Nov 18 05:29:22 2002
+++ linux-2.5.48-s390/arch/s390/kernel/setup.c Mon Nov 18 20:14:32 2002
@@ -164,9 +164,9 @@

static int __init conmode_setup(char *str)
{
-#if defined(CONFIG_HWC_CONSOLE)
- if (strncmp(str, "hwc", 4) == 0)
- SET_CONSOLE_HWC;
+#if defined(CONFIG_SCLP_CONSOLE)
+ if (strncmp(str, "hwc", 4) == 0 || strncmp(str, "sclp", 5) == 0)
+ SET_CONSOLE_SCLP;
#endif
#if defined(CONFIG_TN3215_CONSOLE)
if (strncmp(str, "3215", 5) == 0)
@@ -198,8 +198,8 @@
*/
cpcmd("TERM CONMODE 3215", NULL, 0);
if (ptr == NULL) {
-#if defined(CONFIG_HWC_CONSOLE)
- SET_CONSOLE_HWC;
+#if defined(CONFIG_SCLP_CONSOLE)
+ SET_CONSOLE_SCLP;
#endif
return;
}
@@ -208,16 +208,16 @@
SET_CONSOLE_3270;
#elif defined(CONFIG_TN3215_CONSOLE)
SET_CONSOLE_3215;
-#elif defined(CONFIG_HWC_CONSOLE)
- SET_CONSOLE_HWC;
+#elif defined(CONFIG_SCLP_CONSOLE)
+ SET_CONSOLE_SCLP;
#endif
} else if (strncmp(ptr + 8, "3215", 4) == 0) {
#if defined(CONFIG_TN3215_CONSOLE)
SET_CONSOLE_3215;
#elif defined(CONFIG_TN3270_CONSOLE)
SET_CONSOLE_3270;
-#elif defined(CONFIG_HWC_CONSOLE)
- SET_CONSOLE_HWC;
+#elif defined(CONFIG_SCLP_CONSOLE)
+ SET_CONSOLE_SCLP;
#endif
}
} else if (MACHINE_IS_P390) {
@@ -227,8 +227,8 @@
SET_CONSOLE_3270;
#endif
} else {
-#if defined(CONFIG_HWC_CONSOLE)
- SET_CONSOLE_HWC;
+#if defined(CONFIG_SCLP_CONSOLE)
+ SET_CONSOLE_SCLP;
#endif
}
}
diff -urN linux-2.5.48/arch/s390x/defconfig linux-2.5.48-s390/arch/s390x/defconfig
--- linux-2.5.48/arch/s390x/defconfig Mon Nov 18 20:11:09 2002
+++ linux-2.5.48-s390/arch/s390x/defconfig Mon Nov 18 20:14:32 2002
@@ -166,9 +166,10 @@
# CONFIG_TN3270 is not set
CONFIG_TN3215=y
CONFIG_TN3215_CONSOLE=y
-CONFIG_HWC=y
-CONFIG_HWC_CONSOLE=y
-CONFIG_HWC_CPI=m
+CONFIG_SCLP=y
+CONFIG_SCLP_TTY=y
+CONFIG_SCLP_CONSOLE=y
+CONFIG_SCLP_CPI=m
CONFIG_S390_TAPE=m

#
diff -urN linux-2.5.48/arch/s390x/kernel/setup.c linux-2.5.48-s390/arch/s390x/kernel/setup.c
--- linux-2.5.48/arch/s390x/kernel/setup.c Mon Nov 18 05:29:31 2002
+++ linux-2.5.48-s390/arch/s390x/kernel/setup.c Mon Nov 18 20:14:32 2002
@@ -164,9 +164,9 @@

static int __init conmode_setup(char *str)
{
-#if defined(CONFIG_HWC_CONSOLE)
- if (strncmp(str, "hwc", 4) == 0)
- SET_CONSOLE_HWC;
+#if defined(CONFIG_SCLP_CONSOLE)
+ if (strncmp(str, "hwc", 4) == 0 || strncmp(str, "sclp", 5) == 0)
+ SET_CONSOLE_SCLP;
#endif
#if defined(CONFIG_TN3215_CONSOLE)
if (strncmp(str, "3215", 5) == 0)
@@ -198,8 +198,8 @@
*/
cpcmd("TERM CONMODE 3215", NULL, 0);
if (ptr == NULL) {
-#if defined(CONFIG_HWC_CONSOLE)
- SET_CONSOLE_HWC;
+#if defined(CONFIG_SCLP_CONSOLE)
+ SET_CONSOLE_SCLP;
#endif
return;
}
@@ -208,16 +208,16 @@
SET_CONSOLE_3270;
#elif defined(CONFIG_TN3215_CONSOLE)
SET_CONSOLE_3215;
-#elif defined(CONFIG_HWC_CONSOLE)
- SET_CONSOLE_HWC;
+#elif defined(CONFIG_SCLP_CONSOLE)
+ SET_CONSOLE_SCLP;
#endif
} else if (strncmp(ptr + 8, "3215", 4) == 0) {
#if defined(CONFIG_TN3215_CONSOLE)
SET_CONSOLE_3215;
#elif defined(CONFIG_TN3270_CONSOLE)
SET_CONSOLE_3270;
-#elif defined(CONFIG_HWC_CONSOLE)
- SET_CONSOLE_HWC;
+#elif defined(CONFIG_SCLP_CONSOLE)
+ SET_CONSOLE_SCLP;
#endif
}
} else if (MACHINE_IS_P390) {
@@ -227,8 +227,8 @@
SET_CONSOLE_3270;
#endif
} else {
-#if defined(CONFIG_HWC_CONSOLE)
- SET_CONSOLE_HWC;
+#if defined(CONFIG_SCLP_CONSOLE)
+ SET_CONSOLE_SCLP;
#endif
}
}
diff -urN linux-2.5.48/drivers/char/tty_io.c linux-2.5.48-s390/drivers/char/tty_io.c
--- linux-2.5.48/drivers/char/tty_io.c Mon Nov 18 05:29:47 2002
+++ linux-2.5.48-s390/drivers/char/tty_io.c Mon Nov 18 20:14:45 2002
@@ -146,10 +146,9 @@
extern void console_8xx_init(void);
extern int rs_8xx_init(void);
extern void mac_scc_console_init(void);
-extern void hwc_console_init(void);
-extern void hwc_tty_init(void);
+extern void sclp_console_init(void);
+extern void sclp_tty_init(void);
extern void con3215_init(void);
-extern void tty3215_init(void);
extern void tub3270_con_init(void);
extern void tub3270_init(void);
extern void uart_console_init(void);
@@ -2208,8 +2207,8 @@
#ifdef CONFIG_TN3215
con3215_init();
#endif
-#ifdef CONFIG_HWC
- hwc_console_init();
+#ifdef CONFIG_SCLP_CONSOLE
+ sclp_console_init();
#endif
#ifdef CONFIG_STDIO_CONSOLE
stdio_console_init();
@@ -2349,8 +2348,8 @@
#ifdef CONFIG_TN3215
tty3215_init();
#endif
-#ifdef CONFIG_HWC
- hwc_tty_init();
+#ifdef CONFIG_SCLP
+ sclp_tty_init();
#endif
#ifdef CONFIG_A2232
a2232board_init();
diff -urN linux-2.5.48/drivers/s390/Kconfig linux-2.5.48-s390/drivers/s390/Kconfig
--- linux-2.5.48/drivers/s390/Kconfig Mon Nov 18 05:29:53 2002
+++ linux-2.5.48-s390/drivers/s390/Kconfig Mon Nov 18 20:14:32 2002
@@ -257,24 +257,30 @@
Include support for using an IBM 3215 line-mode terminal as a
Linux system console.

-config HWC
- bool "Support for HWC line mode terminal"
+config SCLP
+ bool "Support for SCLP"
help
- Include support for IBM HWC line-mode terminals.
+ Include support for the SCLP interface to the service element.

-config HWC_CONSOLE
- bool "console on HWC line mode terminal"
- depends on HWC
+config SCLP_TTY
+ bool "Support for SCLP line mode terminal"
+ depends on SCLP
+ help
+ Include support for IBM SCLP line-mode terminals.
+
+config SCLP_CONSOLE
+ bool "Support for console on SCLP line mode terminal"
+ depends on SCLP_TTY
help
Include support for using an IBM HWC line-mode terminal as the Linux
system console.

-config HWC_CPI
+config SCLP_CPI
tristate "Control-Program Identification"
- depends on HWC
+ depends on SCLP
help
This option enables the hardware console interface for system
- identification This is commonly used for workload management and
+ identification. This is commonly used for workload management and
gives you a nice name for the system on the service element.
Please select this option as a module since built-in operation is
completely untested.
diff -urN linux-2.5.48/drivers/s390/char/Makefile linux-2.5.48-s390/drivers/s390/char/Makefile
--- linux-2.5.48/drivers/s390/char/Makefile Mon Nov 18 05:29:45 2002
+++ linux-2.5.48-s390/drivers/s390/char/Makefile Mon Nov 18 20:14:32 2002
@@ -2,28 +2,23 @@
# S/390 character devices
#

-export-objs := hwc_rw.o tape.o tape34xx.o
+export-objs := sclp_rw.o tape_core.o tape_devmap.o tape_std.o

tub3270-objs := tuball.o tubfs.o tubtty.o \
tubttyaid.o tubttybld.o tubttyscl.o \
tubttyrcl.o tubttysiz.o

-tape390-$(CONFIG_S390_TAPE_CHAR) += tapechar.o
-tape390-$(CONFIG_S390_TAPE_BLOCK) += tapeblock.o
-
-tape390-objs := tape.o tape34xx.o $(sort $(tape390-y))
-tape_3480_mod-objs := tape3480.o
-tape_3490_mod-objs := tape3490.o
-
-
obj-y += ctrlchar.o
obj-$(CONFIG_TN3215) += con3215.o
-obj-$(CONFIG_HWC) += hwc_con.o hwc_rw.o hwc_tty.o
-obj-$(CONFIG_HWC_CPI) += hwc_cpi.o
+obj-$(CONFIG_SCLP) += sclp.o
+obj-$(CONFIG_SCLP_TTY) += sclp_rw.o sclp_tty.o
+obj-$(CONFIG_SCLP_CONSOLE) += sclp_con.o
+obj-$(CONFIG_SCLP_CPI) += sclp_cpi.o
obj-$(CONFIG_TN3270) += tub3270.o
-obj-$(CONFIG_S390_TAPE) += tape390.o
-obj-$(CONFIG_S390_TAPE_3480) += tape_3480_mod.o
-obj-$(CONFIG_S390_TAPE_3490) += tape_3490_mod.o
+tape-$(CONFIG_S390_TAPE_BLOCK) += tape_block.o
+tape-$(CONFIG_PROC_FS) += tape_proc.o
+tape-objs := tape_core.o tape_std.o tape_char.o $(tape-y)
+obj-$(CONFIG_S390_TAPE) += tape.o
+obj-$(CONFIG_S390_TAPE_34XX) += tape_34xx.o

include $(TOPDIR)/Rules.make
-
diff -urN linux-2.5.48/drivers/s390/char/hwc.h linux-2.5.48-s390/drivers/s390/char/hwc.h
--- linux-2.5.48/drivers/s390/char/hwc.h Mon Nov 18 05:29:48 2002
+++ linux-2.5.48-s390/drivers/s390/char/hwc.h Thu Jan 1 01:00:00 1970
@@ -1,280 +0,0 @@
-/*
- * drivers/s390/char/hwc.h
- *
- *
- * S390 version
- * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Martin Peschke <mpeschke@de.ibm.com>
- *
- *
- *
- */
-
-#ifndef __HWC_H__
-#define __HWC_H__
-
-#define HWC_EXT_INT_PARAM_ADDR 0xFFFFFFF8
-#define HWC_EXT_INT_PARAM_PEND 0x00000001
-
-#define ET_OpCmd 0x01
-#define ET_Msg 0x02
-#define ET_StateChange 0x08
-#define ET_PMsgCmd 0x09
-#define ET_CntlProgOpCmd 0x20
-#define ET_CntlProgIdent 0x0B
-#define ET_SigQuiesce 0x1D
-
-#define ET_OpCmd_Mask 0x80000000
-#define ET_Msg_Mask 0x40000000
-#define ET_StateChange_Mask 0x01000000
-#define ET_PMsgCmd_Mask 0x00800000
-#define ET_CtlProgOpCmd_Mask 0x00000001
-#define ET_CtlProgIdent_Mask 0x00200000
-#define ET_SigQuiesce_Mask 0x00000008
-
-#define GMF_DOM 0x8000
-#define GMF_SndAlrm 0x4000
-#define GMF_HoldMsg 0x2000
-
-#define LTF_CntlText 0x8000
-#define LTF_LabelText 0x4000
-#define LTF_DataText 0x2000
-#define LTF_EndText 0x1000
-#define LTF_PromptText 0x0800
-
-#define HWC_COMMAND_INITIATED 0
-#define HWC_BUSY 2
-#define HWC_NOT_OPERATIONAL 3
-
-#define hwc_cmdw_t u32;
-
-#define HWC_CMDW_READDATA 0x00770005
-
-#define HWC_CMDW_WRITEDATA 0x00760005
-
-#define HWC_CMDW_WRITEMASK 0x00780005
-
-#define GDS_ID_MDSMU 0x1310
-
-#define GDS_ID_MDSRouteInfo 0x1311
-
-#define GDS_ID_AgUnWrkCorr 0x1549
-
-#define GDS_ID_SNACondReport 0x1532
-
-#define GDS_ID_CPMSU 0x1212
-
-#define GDS_ID_RoutTargInstr 0x154D
-
-#define GDS_ID_OpReq 0x8070
-
-#define GDS_ID_TextCmd 0x1320
-
-#define GDS_KEY_SelfDefTextMsg 0x31
-
-#define _HWCB_HEADER u16 length; \
- u8 function_code; \
- u8 control_mask[3]; \
- u16 response_code;
-
-#define _EBUF_HEADER u16 length; \
- u8 type; \
- u8 flags; \
- u16 _reserved;
-
-typedef struct {
- _EBUF_HEADER
-} __attribute__ ((packed))
-
-evbuf_t;
-
-#define _MDB_HEADER u16 length; \
- u16 type; \
- u32 tag; \
- u32 revision_code;
-
-#define _GO_HEADER u16 length; \
- u16 type; \
- u32 domid; \
- u8 hhmmss_time[8]; \
- u8 th_time[3]; \
- u8 _reserved_0; \
- u8 dddyyyy_date[7]; \
- u8 _reserved_1; \
- u16 general_msg_flags; \
- u8 _reserved_2[10]; \
- u8 originating_system_name[8]; \
- u8 job_guest_name[8];
-
-#define _MTO_HEADER u16 length; \
- u16 type; \
- u16 line_type_flags; \
- u8 alarm_control; \
- u8 _reserved[3];
-
-typedef struct {
- _GO_HEADER
-} __attribute__ ((packed))
-
-go_t;
-
-typedef struct {
- go_t go;
-} __attribute__ ((packed))
-
-mdb_body_t;
-
-typedef struct {
- _MDB_HEADER
- mdb_body_t mdb_body;
-} __attribute__ ((packed))
-
-mdb_t;
-
-typedef struct {
- _EBUF_HEADER
- mdb_t mdb;
-} __attribute__ ((packed))
-
-msgbuf_t;
-
-typedef struct {
- _HWCB_HEADER
- msgbuf_t msgbuf;
-} __attribute__ ((packed))
-
-write_hwcb_t;
-
-typedef struct {
- _MTO_HEADER
-} __attribute__ ((packed))
-
-mto_t;
-
-/* FIXME: don't define static variables in a header!!! */
-#warning
-static write_hwcb_t write_hwcb_template =
-{
- sizeof (write_hwcb_t),
- 0x00,
- {
- 0x00,
- 0x00,
- 0x00
- },
- 0x0000,
- {
- sizeof (msgbuf_t),
- ET_Msg,
- 0x00,
- 0x0000,
- {
- sizeof (mdb_t),
- 0x0001,
- 0xD4C4C240,
- 0x00000001,
- {
- {
- sizeof (go_t),
- 0x0001
-
- }
- }
- }
- }
-};
-
-#warning
-static mto_t mto_template =
-{
- sizeof (mto_t),
- 0x0004,
- LTF_EndText,
- 0x00
-};
-
-typedef u32 _hwcb_mask_t;
-
-typedef struct {
- _HWCB_HEADER
- u16 _reserved;
- u16 mask_length;
- _hwcb_mask_t cp_receive_mask;
- _hwcb_mask_t cp_send_mask;
- _hwcb_mask_t hwc_receive_mask;
- _hwcb_mask_t hwc_send_mask;
-} __attribute__ ((packed))
-
-init_hwcb_t;
-
-#warning
-static init_hwcb_t init_hwcb_template =
-{
- sizeof (init_hwcb_t),
- 0x00,
- {
- 0x00,
- 0x00,
- 0x00
- },
- 0x0000,
- 0x0000,
- sizeof (_hwcb_mask_t),
- ET_OpCmd_Mask | ET_PMsgCmd_Mask |
- ET_StateChange_Mask | ET_SigQuiesce_Mask,
- ET_Msg_Mask | ET_PMsgCmd_Mask | ET_CtlProgIdent_Mask
-};
-
-typedef struct {
- _EBUF_HEADER
- u8 validity_hwc_active_facility_mask:1;
- u8 validity_hwc_receive_mask:1;
- u8 validity_hwc_send_mask:1;
- u8 validity_read_data_function_mask:1;
- u16 _zeros:12;
- u16 mask_length;
- u64 hwc_active_facility_mask;
- _hwcb_mask_t hwc_receive_mask;
- _hwcb_mask_t hwc_send_mask;
- u32 read_data_function_mask;
-} __attribute__ ((packed))
-
-statechangebuf_t;
-
-#define _GDS_VECTOR_HEADER u16 length; \
- u16 gds_id;
-
-#define _GDS_SUBVECTOR_HEADER u8 length; \
- u8 key;
-
-typedef struct {
- _GDS_VECTOR_HEADER
-} __attribute__ ((packed))
-
-gds_vector_t;
-
-typedef struct {
- _GDS_SUBVECTOR_HEADER
-} __attribute__ ((packed))
-
-gds_subvector_t;
-
-typedef struct {
- _HWCB_HEADER
-} __attribute__ ((packed))
-
-read_hwcb_t;
-
-#warning
-static read_hwcb_t read_hwcb_template =
-{
- PAGE_SIZE,
- 0x00,
- {
- 0x00,
- 0x00,
- 0x80
- }
-};
-
-#endif /* __HWC_H__ */
diff -urN linux-2.5.48/drivers/s390/char/hwc_con.c linux-2.5.48-s390/drivers/s390/char/hwc_con.c
--- linux-2.5.48/drivers/s390/char/hwc_con.c Mon Nov 18 05:29:21 2002
+++ linux-2.5.48-s390/drivers/s390/char/hwc_con.c Thu Jan 1 01:00:00 1970
@@ -1,92 +0,0 @@
-/*
- * drivers/s390/char/hwc_con.c
- * HWC line mode console driver
- *
- * S390 version
- * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Martin Peschke <mpeschke@de.ibm.com>
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/major.h>
-#include <linux/errno.h>
-#include <linux/kdev_t.h>
-#include <linux/string.h>
-#include <linux/console.h>
-#include <linux/fs.h>
-#include <linux/init.h>
-
-#include "hwc_rw.h"
-
-#ifdef CONFIG_HWC_CONSOLE
-
-#define hwc_console_major 4
-#define hwc_console_minor 64
-#define hwc_console_name "console"
-
-void hwc_console_write (struct console *, const char *, unsigned int);
-kdev_t hwc_console_device (struct console *);
-void hwc_console_unblank (void);
-
-#define HWC_CON_PRINT_HEADER "hwc console driver: "
-
-struct console hwc_console =
-{
-
- name:hwc_console_name,
- write:hwc_console_write,
- device:hwc_console_device,
- unblank:hwc_console_unblank,
- flags:CON_PRINTBUFFER,
-};
-
-void
-hwc_console_write (
- struct console *console,
- const char *message,
- unsigned int count)
-{
-
- if (kdev_val (console->device (console)) !=
- kdev_val (hwc_console.device (&hwc_console))) {
-
- hwc_printk (KERN_WARNING HWC_CON_PRINT_HEADER
- "hwc_console_write() called with wrong "
- "device number");
- return;
- }
- hwc_write (0, message, count);
-}
-
-kdev_t
-hwc_console_device (struct console * c)
-{
- return mk_kdev (hwc_console_major, hwc_console_minor);
-}
-
-void
-hwc_console_unblank (void)
-{
- hwc_unblank ();
-}
-
-#endif
-
-void __init
-hwc_console_init (void)
-{
- if (!MACHINE_HAS_HWC)
- return;
-
- if (hwc_init () == 0) {
-#ifdef CONFIG_HWC_CONSOLE
-
- if (CONSOLE_IS_HWC)
- register_console (&hwc_console);
-#endif
- } else
- panic (HWC_CON_PRINT_HEADER "hwc initialisation failed !");
-
- return;
-}
diff -urN linux-2.5.48/drivers/s390/char/hwc_cpi.c linux-2.5.48-s390/drivers/s390/char/hwc_cpi.c
--- linux-2.5.48/drivers/s390/char/hwc_cpi.c Mon Nov 18 05:29:50 2002
+++ linux-2.5.48-s390/drivers/s390/char/hwc_cpi.c Thu Jan 1 01:00:00 1970
@@ -1,212 +0,0 @@
-
-/*
- * Author: Martin Peschke <mpeschke@de.ibm.com>
- * Copyright (C) 2001 IBM Entwicklung GmbH, IBM Corporation
- */
-
-#include <linux/string.h>
-#include <linux/ctype.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <linux/version.h>
-#include <linux/sched.h>
-#include <asm/semaphore.h>
-#include <asm/ebcdic.h>
-#include "hwc_rw.h"
-#include "hwc.h"
-
-#define CPI_RETRIES 3
-#define CPI_SLEEP_TICKS 50
-
-#define CPI_LENGTH_SYSTEM_TYPE 8
-#define CPI_LENGTH_SYSTEM_NAME 8
-#define CPI_LENGTH_SYSPLEX_NAME 8
-
-typedef struct {
- _EBUF_HEADER
- u8 id_format;
- u8 reserved0;
- u8 system_type[CPI_LENGTH_SYSTEM_TYPE];
- u64 reserved1;
- u8 system_name[CPI_LENGTH_SYSTEM_NAME];
- u64 reserved2;
- u64 system_level;
- u64 reserved3;
- u8 sysplex_name[CPI_LENGTH_SYSPLEX_NAME];
- u8 reserved4[16];
-} __attribute__ ((packed))
-
-cpi_evbuf_t;
-
-typedef struct _cpi_hwcb_t {
- _HWCB_HEADER
- cpi_evbuf_t cpi_evbuf;
-} __attribute__ ((packed))
-
-cpi_hwcb_t;
-
-cpi_hwcb_t *cpi_hwcb;
-
-static int __init cpi_module_init (void);
-static void __exit cpi_module_exit (void);
-
-module_init (cpi_module_init);
-module_exit (cpi_module_exit);
-
-MODULE_AUTHOR (
- "Martin Peschke, IBM Deutschland Entwicklung GmbH "
- "<mpeschke@de.ibm.com>");
-
-MODULE_DESCRIPTION (
- "identify this operating system instance to the S/390 or zSeries hardware");
-
-static char *system_name = NULL;
-MODULE_PARM (system_name, "s");
-MODULE_PARM_DESC (system_name, "e.g. hostname - max. 8 characters");
-
-static char *sysplex_name = NULL;
-#ifdef ALLOW_SYSPLEX_NAME
-MODULE_PARM (sysplex_name, "s");
-MODULE_PARM_DESC (sysplex_name, "if applicable - max. 8 characters");
-#endif
-
-static char *system_type = "LINUX";
-
-hwc_request_t cpi_request =
-{};
-
-hwc_callback_t cpi_callback;
-
-static DECLARE_MUTEX_LOCKED (sem);
-
-static int __init
-cpi_module_init (void)
-{
- int retval;
- int system_type_length;
- int system_name_length;
- int sysplex_name_length = 0;
- int retries;
-
- if (!MACHINE_HAS_HWC) {
- printk ("cpi: bug: hardware console not present\n");
- retval = -EINVAL;
- goto out;
- }
- if (!system_type) {
- printk ("cpi: bug: no system type specified\n");
- retval = -EINVAL;
- goto out;
- }
- system_type_length = strlen (system_type);
- if (system_type_length > CPI_LENGTH_SYSTEM_NAME) {
- printk ("cpi: bug: system type has length of %i characters - "
- "only %i characters supported\n",
- system_type_length,
- CPI_LENGTH_SYSTEM_TYPE);
- retval = -EINVAL;
- goto out;
- }
- if (!system_name) {
- printk ("cpi: no system name specified\n");
- retval = -EINVAL;
- goto out;
- }
- system_name_length = strlen (system_name);
- if (system_name_length > CPI_LENGTH_SYSTEM_NAME) {
- printk ("cpi: system name has length of %i characters - "
- "only %i characters supported\n",
- system_name_length,
- CPI_LENGTH_SYSTEM_NAME);
- retval = -EINVAL;
- goto out;
- }
- if (sysplex_name) {
- sysplex_name_length = strlen (sysplex_name);
- if (sysplex_name_length > CPI_LENGTH_SYSPLEX_NAME) {
- printk ("cpi: sysplex name has length of %i characters - "
- "only %i characters supported\n",
- sysplex_name_length,
- CPI_LENGTH_SYSPLEX_NAME);
- retval = -EINVAL;
- goto out;
- }
- }
- cpi_hwcb = kmalloc (sizeof (cpi_hwcb_t), GFP_KERNEL);
- if (!cpi_hwcb) {
- printk ("cpi: no storage to fulfill request\n");
- retval = -ENOMEM;
- goto out;
- }
- memset (cpi_hwcb, 0, sizeof (cpi_hwcb_t));
-
- cpi_hwcb->length = sizeof (cpi_hwcb_t);
- cpi_hwcb->cpi_evbuf.length = sizeof (cpi_evbuf_t);
- cpi_hwcb->cpi_evbuf.type = 0x0B;
-
- memset (cpi_hwcb->cpi_evbuf.system_type, ' ', CPI_LENGTH_SYSTEM_TYPE);
- memcpy (cpi_hwcb->cpi_evbuf.system_type, system_type, system_type_length);
- HWC_ASCEBC_STR (cpi_hwcb->cpi_evbuf.system_type, CPI_LENGTH_SYSTEM_TYPE);
- EBC_TOUPPER (cpi_hwcb->cpi_evbuf.system_type, CPI_LENGTH_SYSTEM_TYPE);
-
- memset (cpi_hwcb->cpi_evbuf.system_name, ' ', CPI_LENGTH_SYSTEM_NAME);
- memcpy (cpi_hwcb->cpi_evbuf.system_name, system_name, system_name_length);
- HWC_ASCEBC_STR (cpi_hwcb->cpi_evbuf.system_name, CPI_LENGTH_SYSTEM_NAME);
- EBC_TOUPPER (cpi_hwcb->cpi_evbuf.system_name, CPI_LENGTH_SYSTEM_NAME);
-
- cpi_hwcb->cpi_evbuf.system_level = LINUX_VERSION_CODE;
-
- if (sysplex_name) {
- memset (cpi_hwcb->cpi_evbuf.sysplex_name, ' ', CPI_LENGTH_SYSPLEX_NAME);
- memcpy (cpi_hwcb->cpi_evbuf.sysplex_name, sysplex_name, sysplex_name_length);
- HWC_ASCEBC_STR (cpi_hwcb->cpi_evbuf.sysplex_name, CPI_LENGTH_SYSPLEX_NAME);
- EBC_TOUPPER (cpi_hwcb->cpi_evbuf.sysplex_name, CPI_LENGTH_SYSPLEX_NAME);
- }
- cpi_request.block = cpi_hwcb;
- cpi_request.word = HWC_CMDW_WRITEDATA;
- cpi_request.callback = cpi_callback;
-
- for (retries = CPI_RETRIES; retries; retries--) {
- retval = hwc_send (&cpi_request);
- if (retval) {
-
- set_current_state (TASK_INTERRUPTIBLE);
- schedule_timeout (CPI_SLEEP_TICKS);
- } else {
-
- down (&sem);
-
- switch (cpi_hwcb->response_code) {
- case 0x0020:
- printk ("cpi: succeeded\n");
- break;
- default:
- printk ("cpi: failed with response code 0x%x\n",
- cpi_hwcb->response_code);
- }
- goto free;
- }
- }
-
- printk ("cpi: failed (%i)\n", retval);
-
- free:
- kfree (cpi_hwcb);
-
- out:
- return retval;
-}
-
-static void __exit
-cpi_module_exit (void)
-{
- printk ("cpi: exit\n");
-}
-
-void
-cpi_callback (hwc_request_t * req)
-{
- up (&sem);
-}
diff -urN linux-2.5.48/drivers/s390/char/hwc_rw.c linux-2.5.48-s390/drivers/s390/char/hwc_rw.c
--- linux-2.5.48/drivers/s390/char/hwc_rw.c Mon Nov 18 05:29:25 2002
+++ linux-2.5.48-s390/drivers/s390/char/hwc_rw.c Thu Jan 1 01:00:00 1970
@@ -1,2456 +0,0 @@
-/*
- * drivers/s390/char/hwc_rw.c
- * driver: reading from and writing to system console on S/390 via HWC
- *
- * S390 version
- * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Martin Peschke <mpeschke@de.ibm.com>
- *
- *
- *
- *
- *
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/ctype.h>
-#include <linux/mm.h>
-#include <linux/timer.h>
-#include <linux/bootmem.h>
-#include <linux/module.h>
-
-#include <asm/ebcdic.h>
-#include <asm/uaccess.h>
-#include <asm/types.h>
-#include <asm/bitops.h>
-#include <asm/setup.h>
-#include <asm/page.h>
-#include <asm/s390_ext.h>
-#include <asm/irq.h>
-
-#ifndef MIN
-#define MIN(a,b) (((a<b) ? a : b))
-#endif
-
-extern void ctrl_alt_del (void);
-
-#define HWC_RW_PRINT_HEADER "hwc low level driver: "
-
-#define USE_VM_DETECTION
-
-#define DEFAULT_CASE_DELIMITER '%'
-
-#undef DUMP_HWC_INIT_ERROR
-
-#undef DUMP_HWC_WRITE_ERROR
-
-#undef DUMP_HWC_WRITE_LIST_ERROR
-
-#undef DUMP_HWC_READ_ERROR
-
-#undef DUMP_HWCB_INPUT
-
-#undef BUFFER_STRESS_TEST
-
-typedef struct {
- unsigned char *next;
- unsigned short int mto_char_sum;
- unsigned char mto_number;
- unsigned char times_lost;
- unsigned short int mto_number_lost;
- unsigned long int mto_char_sum_lost;
-} __attribute__ ((packed))
-
-hwcb_list_t;
-
-#define MAX_HWCB_ROOM (PAGE_SIZE - sizeof(hwcb_list_t))
-
-#define MAX_MESSAGE_SIZE (MAX_HWCB_ROOM - sizeof(write_hwcb_t))
-
-#define BUF_HWCB hwc_data.hwcb_list_tail
-#define OUT_HWCB hwc_data.hwcb_list_head
-#define ALL_HWCB_MTO hwc_data.mto_number
-#define ALL_HWCB_CHAR hwc_data.mto_char_sum
-
-#define _LIST(hwcb) ((hwcb_list_t*)(&(hwcb)[PAGE_SIZE-sizeof(hwcb_list_t)]))
-
-#define _HWCB_CHAR(hwcb) (_LIST(hwcb)->mto_char_sum)
-
-#define _HWCB_MTO(hwcb) (_LIST(hwcb)->mto_number)
-
-#define _HWCB_CHAR_LOST(hwcb) (_LIST(hwcb)->mto_char_sum_lost)
-
-#define _HWCB_MTO_LOST(hwcb) (_LIST(hwcb)->mto_number_lost)
-
-#define _HWCB_TIMES_LOST(hwcb) (_LIST(hwcb)->times_lost)
-
-#define _HWCB_NEXT(hwcb) (_LIST(hwcb)->next)
-
-#define BUF_HWCB_CHAR _HWCB_CHAR(BUF_HWCB)
-
-#define BUF_HWCB_MTO _HWCB_MTO(BUF_HWCB)
-
-#define BUF_HWCB_NEXT _HWCB_NEXT(BUF_HWCB)
-
-#define OUT_HWCB_CHAR _HWCB_CHAR(OUT_HWCB)
-
-#define OUT_HWCB_MTO _HWCB_MTO(OUT_HWCB)
-
-#define OUT_HWCB_NEXT _HWCB_NEXT(OUT_HWCB)
-
-#define BUF_HWCB_CHAR_LOST _HWCB_CHAR_LOST(BUF_HWCB)
-
-#define BUF_HWCB_MTO_LOST _HWCB_MTO_LOST(BUF_HWCB)
-
-#define OUT_HWCB_CHAR_LOST _HWCB_CHAR_LOST(OUT_HWCB)
-
-#define OUT_HWCB_MTO_LOST _HWCB_MTO_LOST(OUT_HWCB)
-
-#define BUF_HWCB_TIMES_LOST _HWCB_TIMES_LOST(BUF_HWCB)
-
-#include "hwc.h"
-
-#define __HWC_RW_C__
-#include "hwc_rw.h"
-#undef __HWC_RW_C__
-
-static unsigned char _obuf[MAX_HWCB_ROOM];
-
-static unsigned char
- _page[PAGE_SIZE] __attribute__ ((aligned (PAGE_SIZE)));
-
-typedef unsigned long kmem_pages_t;
-
-#define MAX_KMEM_PAGES (sizeof(kmem_pages_t) << 3)
-
-#define HWC_WTIMER_RUNS 1
-#define HWC_FLUSH 2
-#define HWC_INIT 4
-#define HWC_BROKEN 8
-#define HWC_INTERRUPT 16
-#define HWC_PTIMER_RUNS 32
-
-static struct {
-
- hwc_ioctls_t ioctls;
-
- hwc_ioctls_t init_ioctls;
-
- unsigned char *hwcb_list_head;
-
- unsigned char *hwcb_list_tail;
-
- unsigned short int mto_number;
-
- unsigned int mto_char_sum;
-
- unsigned char hwcb_count;
-
- unsigned long kmem_start;
-
- unsigned long kmem_end;
-
- kmem_pages_t kmem_pages;
-
- unsigned char *obuf;
-
- unsigned short int obuf_cursor;
-
- unsigned short int obuf_count;
-
- unsigned short int obuf_start;
-
- unsigned char *page;
-
- u32 current_servc;
-
- unsigned char *current_hwcb;
-
- unsigned char write_nonprio:1;
- unsigned char write_prio:1;
- unsigned char read_nonprio:1;
- unsigned char read_prio:1;
- unsigned char read_statechange:1;
- unsigned char sig_quiesce:1;
-
- unsigned char flags;
-
- hwc_high_level_calls_t *calls;
-
- hwc_request_t *request;
-
- spinlock_t lock;
-
- struct timer_list write_timer;
-
- struct timer_list poll_timer;
-} hwc_data =
-{
- {
- },
- {
- 8,
- 0,
- 80,
- 1,
- MAX_KMEM_PAGES,
- MAX_KMEM_PAGES,
-
- 0,
-
- 0x6c
-
- },
- NULL,
- NULL,
- 0,
- 0,
- 0,
- 0,
- 0,
- 0,
- _obuf,
- 0,
- 0,
- 0,
- _page,
- 0,
- NULL,
- 0,
- 0,
- 0,
- 0,
- 0,
- 0,
- 0,
- NULL,
- NULL
-
-};
-
-static unsigned long cr0 __attribute__ ((aligned (8)));
-static unsigned long cr0_save __attribute__ ((aligned (8)));
-static unsigned char psw_mask __attribute__ ((aligned (8)));
-
-static ext_int_info_t ext_int_info_hwc;
-
-#define DELAYED_WRITE 0
-#define IMMEDIATE_WRITE 1
-
-static signed int do_hwc_write (int from_user, unsigned char *,
- unsigned int,
- unsigned char);
-
-unsigned char hwc_ip_buf[512];
-
-static asmlinkage int
-internal_print (char write_time, char *fmt,...)
-{
- va_list args;
- int i;
-
- va_start (args, fmt);
- i = vsprintf (hwc_ip_buf, fmt, args);
- va_end (args);
- return do_hwc_write (0, hwc_ip_buf, i, write_time);
-}
-
-int
-hwc_printk (const char *fmt,...)
-{
- va_list args;
- int i;
- unsigned long flags;
- int retval;
-
- spin_lock_irqsave (&hwc_data.lock, flags);
-
- i = vsprintf (hwc_ip_buf, fmt, args);
- va_end (args);
- retval = do_hwc_write (0, hwc_ip_buf, i, IMMEDIATE_WRITE);
-
- spin_unlock_irqrestore (&hwc_data.lock, flags);
-
- return retval;
-}
-
-#ifdef DUMP_HWCB_INPUT
-
-static void
-dump_storage_area (unsigned char *area, unsigned short int count)
-{
- unsigned short int index;
- ioctl_nl_t old_final_nl;
-
- if (!area || !count)
- return;
-
- old_final_nl = hwc_data.ioctls.final_nl;
- hwc_data.ioctls.final_nl = 1;
-
- internal_print (DELAYED_WRITE, "\n%8x ", area);
-
- for (index = 0; index < count; index++) {
-
- if (area[index] <= 0xF)
- internal_print (DELAYED_WRITE, "0%x", area[index]);
- else
- internal_print (DELAYED_WRITE, "%x", area[index]);
-
- if ((index & 0xF) == 0xF)
- internal_print (DELAYED_WRITE, "\n%8x ",
- &area[index + 1]);
- else if ((index & 3) == 3)
- internal_print (DELAYED_WRITE, " ");
- }
-
- internal_print (IMMEDIATE_WRITE, "\n");
-
- hwc_data.ioctls.final_nl = old_final_nl;
-}
-#endif
-
-static inline u32
-service_call (
- u32 hwc_command_word,
- unsigned char hwcb[])
-{
- unsigned int condition_code = 1;
-
- __asm__ __volatile__ ("L 1, 0(%0) \n\t"
- "LRA 2, 0(%1) \n\t"
- ".long 0xB2200012 \n\t"
- :
- :"a" (&hwc_command_word), "a" (hwcb)
- :"1", "2", "memory");
-
- __asm__ __volatile__ ("IPM %0 \n\t"
- "SRL %0, 28 \n\t"
- :"=r" (condition_code));
-
- return condition_code;
-}
-
-static inline unsigned long
-hwc_ext_int_param (void)
-{
- u32 param;
-
- __asm__ __volatile__ ("L %0,128\n\t"
- :"=r" (param));
-
- return (unsigned long) param;
-}
-
-static int
-prepare_write_hwcb (void)
-{
- write_hwcb_t *hwcb;
-
- if (!BUF_HWCB)
- return -ENOMEM;
-
- BUF_HWCB_MTO = 0;
- BUF_HWCB_CHAR = 0;
-
- hwcb = (write_hwcb_t *) BUF_HWCB;
-
- memcpy (hwcb, &write_hwcb_template, sizeof (write_hwcb_t));
-
- return 0;
-}
-
-static int
-sane_write_hwcb (void)
-{
- unsigned short int lost_msg;
- unsigned int lost_char;
- unsigned char lost_hwcb;
- unsigned char *bad_addr;
- unsigned long page;
- int page_nr;
-
- if (!OUT_HWCB)
- return -ENOMEM;
-
- if ((unsigned long) OUT_HWCB & 0xFFF) {
-
- bad_addr = OUT_HWCB;
-
-#ifdef DUMP_HWC_WRITE_LIST_ERROR
- __asm__ ("LHI 1,0xe30\n\t"
- "LRA 2,0(%0) \n\t"
- "J .+0 \n\t"
- :
- : "a" (bad_addr)
- : "1", "2");
-#endif
-
- hwc_data.kmem_pages = 0;
- if ((unsigned long) BUF_HWCB & 0xFFF) {
-
- lost_hwcb = hwc_data.hwcb_count;
- lost_msg = ALL_HWCB_MTO;
- lost_char = ALL_HWCB_CHAR;
-
- OUT_HWCB = NULL;
- BUF_HWCB = NULL;
- ALL_HWCB_MTO = 0;
- ALL_HWCB_CHAR = 0;
- hwc_data.hwcb_count = 0;
- } else {
-
- lost_hwcb = hwc_data.hwcb_count - 1;
- lost_msg = ALL_HWCB_MTO - BUF_HWCB_MTO;
- lost_char = ALL_HWCB_CHAR - BUF_HWCB_CHAR;
- OUT_HWCB = BUF_HWCB;
- ALL_HWCB_MTO = BUF_HWCB_MTO;
- ALL_HWCB_CHAR = BUF_HWCB_CHAR;
- hwc_data.hwcb_count = 1;
- page = (unsigned long) BUF_HWCB;
-
- if (page >= hwc_data.kmem_start &&
- page <= hwc_data.kmem_end) {
-
- page_nr = (int)
- ((page - hwc_data.kmem_start) >> 12);
- set_bit (page_nr, &hwc_data.kmem_pages);
- }
- }
-
- internal_print (
- DELAYED_WRITE,
- HWC_RW_PRINT_HEADER
- "found invalid HWCB at address 0x%lx. List corrupted. "
- "Lost %i HWCBs with %i characters within up to %i "
- "messages. Saved %i HWCB with last %i characters i"
- "within up to %i messages.\n",
- (unsigned long) bad_addr,
- lost_hwcb, lost_char, lost_msg,
- hwc_data.hwcb_count,
- ALL_HWCB_CHAR, ALL_HWCB_MTO);
- }
- return 0;
-}
-
-static int
-reuse_write_hwcb (void)
-{
- int retval;
-
- if (hwc_data.hwcb_count < 2)
-#ifdef DUMP_HWC_WRITE_LIST_ERROR
- __asm__ ("LHI 1,0xe31\n\t"
- "LRA 2,0(%0)\n\t"
- "LRA 3,0(%1)\n\t"
- "J .+0 \n\t"
- :
- : "a" (BUF_HWCB), "a" (OUT_HWCB)
- : "1", "2", "3");
-#else
- return -EPERM;
-#endif
-
- if (hwc_data.current_hwcb == OUT_HWCB) {
-
- if (hwc_data.hwcb_count > 2) {
-
- BUF_HWCB_NEXT = OUT_HWCB_NEXT;
-
- BUF_HWCB = OUT_HWCB_NEXT;
-
- OUT_HWCB_NEXT = BUF_HWCB_NEXT;
-
- BUF_HWCB_NEXT = NULL;
- }
- } else {
-
- BUF_HWCB_NEXT = OUT_HWCB;
-
- BUF_HWCB = OUT_HWCB;
-
- OUT_HWCB = OUT_HWCB_NEXT;
-
- BUF_HWCB_NEXT = NULL;
- }
-
- BUF_HWCB_TIMES_LOST += 1;
- BUF_HWCB_CHAR_LOST += BUF_HWCB_CHAR;
- BUF_HWCB_MTO_LOST += BUF_HWCB_MTO;
- ALL_HWCB_MTO -= BUF_HWCB_MTO;
- ALL_HWCB_CHAR -= BUF_HWCB_CHAR;
-
- retval = prepare_write_hwcb ();
-
- if (hwc_data.hwcb_count == hwc_data.ioctls.max_hwcb)
- internal_print (
- DELAYED_WRITE,
- HWC_RW_PRINT_HEADER
- "reached my own limit of "
- "allowed buffer space for output (%i HWCBs = %li "
- "bytes), skipped content of oldest HWCB %i time(s) "
- "(%i lines = %i characters)\n",
- hwc_data.ioctls.max_hwcb,
- hwc_data.ioctls.max_hwcb * PAGE_SIZE,
- BUF_HWCB_TIMES_LOST,
- BUF_HWCB_MTO_LOST,
- BUF_HWCB_CHAR_LOST);
- else
- internal_print (
- DELAYED_WRITE,
- HWC_RW_PRINT_HEADER
- "page allocation failed, "
- "could not expand buffer for output (currently in "
- "use: %i HWCBs = %li bytes), skipped content of "
- "oldest HWCB %i time(s) (%i lines = %i characters)\n",
- hwc_data.hwcb_count,
- hwc_data.hwcb_count * PAGE_SIZE,
- BUF_HWCB_TIMES_LOST,
- BUF_HWCB_MTO_LOST,
- BUF_HWCB_CHAR_LOST);
-
- return retval;
-}
-
-static int
-allocate_write_hwcb (void)
-{
- unsigned char *page;
- int page_nr;
-
- if (hwc_data.hwcb_count == hwc_data.ioctls.max_hwcb)
- return -ENOMEM;
-
- page_nr = find_first_zero_bit (&hwc_data.kmem_pages, MAX_KMEM_PAGES);
- if (page_nr < hwc_data.ioctls.kmem_hwcb) {
-
- page = (unsigned char *)
- (hwc_data.kmem_start + (page_nr << 12));
- set_bit (page_nr, &hwc_data.kmem_pages);
- } else
- page = (unsigned char *) __get_free_page (GFP_ATOMIC | GFP_DMA);
-
- if (!page)
- return -ENOMEM;
-
- if (!OUT_HWCB)
- OUT_HWCB = page;
- else
- BUF_HWCB_NEXT = page;
-
- BUF_HWCB = page;
-
- BUF_HWCB_NEXT = NULL;
-
- hwc_data.hwcb_count++;
-
- prepare_write_hwcb ();
-
- BUF_HWCB_TIMES_LOST = 0;
- BUF_HWCB_MTO_LOST = 0;
- BUF_HWCB_CHAR_LOST = 0;
-
-#ifdef BUFFER_STRESS_TEST
-
- internal_print (
- DELAYED_WRITE,
- "*** " HWC_RW_PRINT_HEADER
- "page #%i at 0x%x for buffering allocated. ***\n",
- hwc_data.hwcb_count, page);
-
-#endif
-
- return 0;
-}
-
-static int
-release_write_hwcb (void)
-{
- unsigned long page;
- int page_nr;
-
- if (!hwc_data.hwcb_count)
- return -ENODATA;
-
- if (hwc_data.hwcb_count == 1) {
-
- prepare_write_hwcb ();
-
- ALL_HWCB_CHAR = 0;
- ALL_HWCB_MTO = 0;
- BUF_HWCB_TIMES_LOST = 0;
- BUF_HWCB_MTO_LOST = 0;
- BUF_HWCB_CHAR_LOST = 0;
- } else {
- page = (unsigned long) OUT_HWCB;
-
- ALL_HWCB_MTO -= OUT_HWCB_MTO;
- ALL_HWCB_CHAR -= OUT_HWCB_CHAR;
- hwc_data.hwcb_count--;
-
- OUT_HWCB = OUT_HWCB_NEXT;
-
- if (page >= hwc_data.kmem_start &&
- page <= hwc_data.kmem_end) {
- /*memset((void *) page, 0, PAGE_SIZE); */
-
- page_nr = (int) ((page - hwc_data.kmem_start) >> 12);
- clear_bit (page_nr, &hwc_data.kmem_pages);
- } else
- free_page (page);
-#ifdef BUFFER_STRESS_TEST
-
- internal_print (
- DELAYED_WRITE,
- "*** " HWC_RW_PRINT_HEADER
- "page at 0x%x released, %i pages still in use ***\n",
- page, hwc_data.hwcb_count);
-
-#endif
- }
- return 0;
-}
-
-static int
-add_mto (
- unsigned char *message,
- unsigned short int count)
-{
- unsigned short int mto_size;
- write_hwcb_t *hwcb;
- mto_t *mto;
- void *dest;
-
- if (!BUF_HWCB)
- return -ENOMEM;
-
- if (BUF_HWCB == hwc_data.current_hwcb)
- return -ENOMEM;
-
- mto_size = sizeof (mto_t) + count;
-
- hwcb = (write_hwcb_t *) BUF_HWCB;
-
- if ((MAX_HWCB_ROOM - hwcb->length) < mto_size)
- return -ENOMEM;
-
- mto = (mto_t *) (((unsigned long) hwcb) + hwcb->length);
-
- memcpy (mto, &mto_template, sizeof (mto_t));
-
- dest = (void *) (((unsigned long) mto) + sizeof (mto_t));
-
- memcpy (dest, message, count);
-
- mto->length += count;
-
- hwcb->length += mto_size;
- hwcb->msgbuf.length += mto_size;
- hwcb->msgbuf.mdb.length += mto_size;
-
- BUF_HWCB_MTO++;
- ALL_HWCB_MTO++;
- BUF_HWCB_CHAR += count;
- ALL_HWCB_CHAR += count;
-
- return count;
-}
-
-static int write_event_data_1 (void);
-
-static void
-do_poll_hwc (unsigned long data)
-{
- unsigned long flags;
-
- spin_lock_irqsave (&hwc_data.lock, flags);
-
- write_event_data_1 ();
-
- spin_unlock_irqrestore (&hwc_data.lock, flags);
-}
-
-void
-start_poll_hwc (void)
-{
- init_timer (&hwc_data.poll_timer);
- hwc_data.poll_timer.function = do_poll_hwc;
- hwc_data.poll_timer.data = (unsigned long) NULL;
- hwc_data.poll_timer.expires = jiffies + 2 * HZ;
- add_timer (&hwc_data.poll_timer);
- hwc_data.flags |= HWC_PTIMER_RUNS;
-}
-
-static int
-write_event_data_1 (void)
-{
- unsigned short int condition_code;
- int retval;
- write_hwcb_t *hwcb = (write_hwcb_t *) OUT_HWCB;
-
- if ((!hwc_data.write_prio) &&
- (!hwc_data.write_nonprio) &&
- hwc_data.read_statechange)
- return -EOPNOTSUPP;
-
- if (hwc_data.current_servc)
- return -EBUSY;
-
- retval = sane_write_hwcb ();
- if (retval < 0)
- return -EIO;
-
- if (!OUT_HWCB_MTO)
- return -ENODATA;
-
- if (!hwc_data.write_nonprio && hwc_data.write_prio)
- hwcb->msgbuf.type = ET_PMsgCmd;
- else
- hwcb->msgbuf.type = ET_Msg;
-
- condition_code = service_call (HWC_CMDW_WRITEDATA, OUT_HWCB);
-
-#ifdef DUMP_HWC_WRITE_ERROR
- if (condition_code != HWC_COMMAND_INITIATED)
- __asm__ ("LHI 1,0xe20\n\t"
- "L 2,0(%0)\n\t"
- "LRA 3,0(%1)\n\t"
- "J .+0 \n\t"
- :
- : "a" (&condition_code), "a" (OUT_HWCB)
- : "1", "2", "3");
-#endif
-
- switch (condition_code) {
- case HWC_COMMAND_INITIATED:
- hwc_data.current_servc = HWC_CMDW_WRITEDATA;
- hwc_data.current_hwcb = OUT_HWCB;
- retval = condition_code;
- break;
- case HWC_BUSY:
- retval = -EBUSY;
- break;
- case HWC_NOT_OPERATIONAL:
- start_poll_hwc ();
- default:
- retval = -EIO;
- }
-
- return retval;
-}
-
-static void
-flush_hwcbs (void)
-{
- while (hwc_data.hwcb_count > 1)
- release_write_hwcb ();
-
- release_write_hwcb ();
-
- hwc_data.flags &= ~HWC_FLUSH;
-}
-
-static int
-write_event_data_2 (u32 ext_int_param)
-{
- write_hwcb_t *hwcb;
- int retval = 0;
-
-#ifdef DUMP_HWC_WRITE_ERROR
- if ((ext_int_param & HWC_EXT_INT_PARAM_ADDR)
- != (unsigned long) hwc_data.current_hwcb) {
- internal_print (
- DELAYED_WRITE,
- HWC_RW_PRINT_HEADER
- "write_event_data_2 : "
- "HWCB address does not fit "
- "(expected: 0x%lx, got: 0x%lx).\n",
- (unsigned long) hwc_data.current_hwcb,
- ext_int_param);
- return -EINVAL;
- }
-#endif
-
- hwcb = (write_hwcb_t *) OUT_HWCB;
-
-#ifdef DUMP_HWC_WRITE_LIST_ERROR
- if (((unsigned char *) hwcb) != hwc_data.current_hwcb) {
- __asm__ ("LHI 1,0xe22\n\t"
- "LRA 2,0(%0)\n\t"
- "LRA 3,0(%1)\n\t"
- "LRA 4,0(%2)\n\t"
- "LRA 5,0(%3)\n\t"
- "J .+0 \n\t"
- :
- : "a" (OUT_HWCB),
- "a" (hwc_data.current_hwcb),
- "a" (BUF_HWCB),
- "a" (hwcb)
- : "1", "2", "3", "4", "5");
- }
-#endif
-
-#ifdef DUMP_HWC_WRITE_ERROR
- if (hwcb->response_code != 0x0020) {
- __asm__ ("LHI 1,0xe21\n\t"
- "LRA 2,0(%0)\n\t"
- "LRA 3,0(%1)\n\t"
- "LRA 4,0(%2)\n\t"
- "LH 5,0(%3)\n\t"
- "SRL 5,8\n\t"
- "J .+0 \n\t"
- :
- : "a" (OUT_HWCB), "a" (hwc_data.current_hwcb),
- "a" (BUF_HWCB),
- "a" (&(hwc_data.hwcb_count))
- : "1", "2", "3", "4", "5");
- }
-#endif
-
- switch (hwcb->response_code) {
- case 0x0020:
-
- retval = OUT_HWCB_CHAR;
- release_write_hwcb ();
- break;
- case 0x0040:
- case 0x0340:
- case 0x40F0:
- if (!hwc_data.read_statechange) {
- hwcb->response_code = 0;
- start_poll_hwc ();
- }
- retval = -EIO;
- break;
- default:
- internal_print (
- DELAYED_WRITE,
- HWC_RW_PRINT_HEADER
- "write_event_data_2 : "
- "failed operation "
- "(response code: 0x%x "
- "HWCB address: 0x%x).\n",
- hwcb->response_code,
- hwcb);
- retval = -EIO;
- }
-
- if (retval == -EIO) {
-
- hwcb->control_mask[0] = 0;
- hwcb->control_mask[1] = 0;
- hwcb->control_mask[2] = 0;
- hwcb->response_code = 0;
- }
- hwc_data.current_servc = 0;
- hwc_data.current_hwcb = NULL;
-
- if (hwc_data.flags & HWC_FLUSH)
- flush_hwcbs ();
-
- return retval;
-}
-
-static void
-do_put_line (
- unsigned char *message,
- unsigned short count)
-{
-
- if (add_mto (message, count) != count) {
-
- if (allocate_write_hwcb () < 0)
- reuse_write_hwcb ();
-
-#ifdef DUMP_HWC_WRITE_LIST_ERROR
- if (add_mto (message, count) != count)
- __asm__ ("LHI 1,0xe32\n\t"
- "LRA 2,0(%0)\n\t"
- "L 3,0(%1)\n\t"
- "LRA 4,0(%2)\n\t"
- "LRA 5,0(%3)\n\t"
- "J .+0 \n\t"
- :
- : "a" (message), "a" (&hwc_data.kmem_pages),
- "a" (BUF_HWCB), "a" (OUT_HWCB)
- : "1", "2", "3", "4", "5");
-#else
- add_mto (message, count);
-#endif
- }
-}
-
-static void
-put_line (
- unsigned char *message,
- unsigned short count)
-{
-
- if ((!hwc_data.obuf_start) && (hwc_data.flags & HWC_WTIMER_RUNS)) {
- del_timer (&hwc_data.write_timer);
- hwc_data.flags &= ~HWC_WTIMER_RUNS;
- }
- hwc_data.obuf_start += count;
-
- do_put_line (message, count);
-
- hwc_data.obuf_start -= count;
-}
-
-static void
-set_alarm (void)
-{
- write_hwcb_t *hwcb;
-
- if ((!BUF_HWCB) || (BUF_HWCB == hwc_data.current_hwcb))
- allocate_write_hwcb ();
-
- hwcb = (write_hwcb_t *) BUF_HWCB;
- hwcb->msgbuf.mdb.mdb_body.go.general_msg_flags |= GMF_SndAlrm;
-}
-
-static void
-hwc_write_timeout (unsigned long data)
-{
- unsigned long flags;
-
- spin_lock_irqsave (&hwc_data.lock, flags);
-
- hwc_data.obuf_start = hwc_data.obuf_count;
- if (hwc_data.obuf_count)
- put_line (hwc_data.obuf, hwc_data.obuf_count);
- hwc_data.obuf_start = 0;
-
- hwc_data.obuf_cursor = 0;
- hwc_data.obuf_count = 0;
-
- write_event_data_1 ();
-
- spin_unlock_irqrestore (&hwc_data.lock, flags);
-}
-
-static int
-do_hwc_write (
- int from_user,
- unsigned char *msg,
- unsigned int count,
- unsigned char write_time)
-{
- unsigned int i_msg = 0;
- unsigned short int spaces = 0;
- unsigned int processed_characters = 0;
- unsigned char ch;
- unsigned short int obuf_count;
- unsigned short int obuf_cursor;
- unsigned short int obuf_columns;
-
- if (hwc_data.obuf_start) {
- obuf_cursor = 0;
- obuf_count = 0;
- obuf_columns = MIN (hwc_data.ioctls.columns,
- MAX_MESSAGE_SIZE - hwc_data.obuf_start);
- } else {
- obuf_cursor = hwc_data.obuf_cursor;
- obuf_count = hwc_data.obuf_count;
- obuf_columns = hwc_data.ioctls.columns;
- }
-
- for (i_msg = 0; i_msg < count; i_msg++) {
- if (from_user)
- get_user (ch, msg + i_msg);
- else
- ch = msg[i_msg];
-
- processed_characters++;
-
- if ((obuf_cursor == obuf_columns) &&
-
- (ch != '\n') &&
-
- (ch != '\t')) {
- put_line (&hwc_data.obuf[hwc_data.obuf_start],
- obuf_columns);
- obuf_cursor = 0;
- obuf_count = 0;
- }
- switch (ch) {
-
- case '\n':
-
- put_line (&hwc_data.obuf[hwc_data.obuf_start],
- obuf_count);
- obuf_cursor = 0;
- obuf_count = 0;
- break;
-
- case '\a':
-
- hwc_data.obuf_start += obuf_count;
- set_alarm ();
- hwc_data.obuf_start -= obuf_count;
-
- break;
-
- case '\t':
-
- do {
- if (obuf_cursor < obuf_columns) {
- hwc_data.obuf[hwc_data.obuf_start +
- obuf_cursor]
- = HWC_ASCEBC (' ');
- obuf_cursor++;
- } else
- break;
- } while (obuf_cursor % hwc_data.ioctls.width_htab);
-
- break;
-
- case '\f':
- case '\v':
-
- spaces = obuf_cursor;
- put_line (&hwc_data.obuf[hwc_data.obuf_start],
- obuf_count);
- obuf_count = obuf_cursor;
- while (spaces) {
- hwc_data.obuf[hwc_data.obuf_start +
- obuf_cursor - spaces]
- = HWC_ASCEBC (' ');
- spaces--;
- }
-
- break;
-
- case '\b':
-
- if (obuf_cursor)
- obuf_cursor--;
- break;
-
- case '\r':
-
- obuf_cursor = 0;
- break;
-
- case 0x00:
-
- put_line (&hwc_data.obuf[hwc_data.obuf_start],
- obuf_count);
- obuf_cursor = 0;
- obuf_count = 0;
- goto out;
-
- default:
-
- if (isprint (ch))
- hwc_data.obuf[hwc_data.obuf_start +
- obuf_cursor++]
- = HWC_ASCEBC (ch);
- }
- if (obuf_cursor > obuf_count)
- obuf_count = obuf_cursor;
- }
-
- if (obuf_cursor) {
-
- if (hwc_data.obuf_start ||
- (hwc_data.ioctls.final_nl == 0)) {
-
- put_line (&hwc_data.obuf[hwc_data.obuf_start],
- obuf_count);
- obuf_cursor = 0;
- obuf_count = 0;
- } else {
-
- if (hwc_data.ioctls.final_nl > 0) {
-
- if (hwc_data.flags & HWC_WTIMER_RUNS) {
-
- mod_timer (&hwc_data.write_timer,
- jiffies + hwc_data.ioctls.final_nl * HZ / 10);
- } else {
-
- init_timer (&hwc_data.write_timer);
- hwc_data.write_timer.function =
- hwc_write_timeout;
- hwc_data.write_timer.data =
- (unsigned long) NULL;
- hwc_data.write_timer.expires =
- jiffies +
- hwc_data.ioctls.final_nl * HZ / 10;
- add_timer (&hwc_data.write_timer);
- hwc_data.flags |= HWC_WTIMER_RUNS;
- }
- } else;
-
- }
- } else;
-
- out:
-
- if (!hwc_data.obuf_start) {
- hwc_data.obuf_cursor = obuf_cursor;
- hwc_data.obuf_count = obuf_count;
- }
- if (write_time == IMMEDIATE_WRITE)
- write_event_data_1 ();
-
- return processed_characters;
-}
-
-signed int
-hwc_write (int from_user, const unsigned char *msg, unsigned int count)
-{
- unsigned long flags;
- int retval;
-
- spin_lock_irqsave (&hwc_data.lock, flags);
-
- retval = do_hwc_write (from_user, (unsigned char *) msg,
- count, IMMEDIATE_WRITE);
-
- spin_unlock_irqrestore (&hwc_data.lock, flags);
-
- return retval;
-}
-
-unsigned int
-hwc_chars_in_buffer (unsigned char flag)
-{
- unsigned short int number = 0;
- unsigned long flags;
-
- spin_lock_irqsave (&hwc_data.lock, flags);
-
- if (flag & IN_HWCB)
- number += ALL_HWCB_CHAR;
-
- if (flag & IN_WRITE_BUF)
- number += hwc_data.obuf_cursor;
-
- spin_unlock_irqrestore (&hwc_data.lock, flags);
-
- return number;
-}
-
-static inline int
-nr_setbits (kmem_pages_t arg)
-{
- int i;
- int nr = 0;
-
- for (i = 0; i < (sizeof (arg) << 3); i++) {
- if (arg & 1)
- nr++;
- arg >>= 1;
- }
-
- return nr;
-}
-
-unsigned int
-hwc_write_room (unsigned char flag)
-{
- unsigned int number = 0;
- unsigned long flags;
- write_hwcb_t *hwcb;
-
- spin_lock_irqsave (&hwc_data.lock, flags);
-
- if (flag & IN_HWCB) {
-
- if (BUF_HWCB) {
- hwcb = (write_hwcb_t *) BUF_HWCB;
- number += MAX_HWCB_ROOM - hwcb->length;
- }
- number += (hwc_data.ioctls.kmem_hwcb -
- nr_setbits (hwc_data.kmem_pages)) *
- (MAX_HWCB_ROOM -
- (sizeof (write_hwcb_t) + sizeof (mto_t)));
- }
- if (flag & IN_WRITE_BUF)
- number += MAX_HWCB_ROOM - hwc_data.obuf_cursor;
-
- spin_unlock_irqrestore (&hwc_data.lock, flags);
-
- return number;
-}
-
-void
-hwc_flush_buffer (unsigned char flag)
-{
- unsigned long flags;
-
- spin_lock_irqsave (&hwc_data.lock, flags);
-
- if (flag & IN_HWCB) {
- if (hwc_data.current_servc != HWC_CMDW_WRITEDATA)
- flush_hwcbs ();
- else
- hwc_data.flags |= HWC_FLUSH;
- }
- if (flag & IN_WRITE_BUF) {
- hwc_data.obuf_cursor = 0;
- hwc_data.obuf_count = 0;
- }
- spin_unlock_irqrestore (&hwc_data.lock, flags);
-}
-
-unsigned short int
-seperate_cases (unsigned char *buf, unsigned short int count)
-{
-
- unsigned short int i_in;
-
- unsigned short int i_out = 0;
-
- unsigned char _case = 0;
-
- for (i_in = 0; i_in < count; i_in++) {
-
- if (buf[i_in] == hwc_data.ioctls.delim) {
-
- if ((i_in + 1 < count) &&
- (buf[i_in + 1] == hwc_data.ioctls.delim)) {
-
- buf[i_out] = hwc_data.ioctls.delim;
-
- i_out++;
-
- i_in++;
-
- } else
- _case = ~_case;
-
- } else {
-
- if (_case) {
-
- if (hwc_data.ioctls.tolower)
- buf[i_out] = _ebc_toupper[buf[i_in]];
-
- else
- buf[i_out] = _ebc_tolower[buf[i_in]];
-
- } else
- buf[i_out] = buf[i_in];
-
- i_out++;
- }
- }
-
- return i_out;
-}
-
-#ifdef DUMP_HWCB_INPUT
-
-static int
-gds_vector_name (u16 id, unsigned char name[])
-{
- int retval = 0;
-
- switch (id) {
- case GDS_ID_MDSMU:
- name = "Multiple Domain Support Message Unit";
- break;
- case GDS_ID_MDSRouteInfo:
- name = "MDS Routing Information";
- break;
- case GDS_ID_AgUnWrkCorr:
- name = "Agent Unit of Work Correlator";
- break;
- case GDS_ID_SNACondReport:
- name = "SNA Condition Report";
- break;
- case GDS_ID_CPMSU:
- name = "CP Management Services Unit";
- break;
- case GDS_ID_RoutTargInstr:
- name = "Routing and Targeting Instructions";
- break;
- case GDS_ID_OpReq:
- name = "Operate Request";
- break;
- case GDS_ID_TextCmd:
- name = "Text Command";
- break;
-
- default:
- name = "unknown GDS variable";
- retval = -EINVAL;
- }
-
- return retval;
-}
-#endif
-
-inline static gds_vector_t *
-find_gds_vector (
- gds_vector_t * start, void *end, u16 id)
-{
- gds_vector_t *vec;
- gds_vector_t *retval = NULL;
-
- vec = start;
-
- while (((void *) vec) < end) {
- if (vec->gds_id == id) {
-
-#ifdef DUMP_HWCB_INPUT
- int retval_name;
- unsigned char name[64];
-
- retval_name = gds_vector_name (id, name);
- internal_print (
- DELAYED_WRITE,
- HWC_RW_PRINT_HEADER
- "%s at 0x%x up to 0x%x, length: %d",
- name,
- (unsigned long) vec,
- ((unsigned long) vec) + vec->length - 1,
- vec->length);
- if (retval_name < 0)
- internal_print (
- IMMEDIATE_WRITE,
- ", id: 0x%x\n",
- vec->gds_id);
- else
- internal_print (
- IMMEDIATE_WRITE,
- "\n");
-#endif
-
- retval = vec;
- break;
- }
- vec = (gds_vector_t *) (((unsigned long) vec) + vec->length);
- }
-
- return retval;
-}
-
-inline static gds_subvector_t *
-find_gds_subvector (
- gds_subvector_t * start, void *end, u8 key)
-{
- gds_subvector_t *subvec;
- gds_subvector_t *retval = NULL;
-
- subvec = start;
-
- while (((void *) subvec) < end) {
- if (subvec->key == key) {
- retval = subvec;
- break;
- }
- subvec = (gds_subvector_t *)
- (((unsigned long) subvec) + subvec->length);
- }
-
- return retval;
-}
-
-inline static int
-get_input (void *start, void *end)
-{
- int count;
-
- count = ((unsigned long) end) - ((unsigned long) start);
-
- if (hwc_data.ioctls.tolower)
- EBC_TOLOWER (start, count);
-
- if (hwc_data.ioctls.delim)
- count = seperate_cases (start, count);
-
- HWC_EBCASC_STR (start, count);
-
- if (hwc_data.ioctls.echo)
- do_hwc_write (0, start, count, IMMEDIATE_WRITE);
-
- if (hwc_data.calls != NULL)
- if (hwc_data.calls->move_input != NULL)
- (hwc_data.calls->move_input) (start, count);
-
- return count;
-}
-
-inline static int
-eval_selfdeftextmsg (gds_subvector_t * start, void *end)
-{
- gds_subvector_t *subvec;
- void *subvec_data;
- void *subvec_end;
- int retval = 0;
-
- subvec = start;
-
- while (((void *) subvec) < end) {
- subvec = find_gds_subvector (subvec, end, 0x30);
- if (!subvec)
- break;
- subvec_data = (void *)
- (((unsigned long) subvec) +
- sizeof (gds_subvector_t));
- subvec_end = (void *)
- (((unsigned long) subvec) + subvec->length);
- retval += get_input (subvec_data, subvec_end);
- subvec = (gds_subvector_t *) subvec_end;
- }
-
- return retval;
-}
-
-inline static int
-eval_textcmd (gds_subvector_t * start, void *end)
-{
- gds_subvector_t *subvec;
- gds_subvector_t *subvec_data;
- void *subvec_end;
- int retval = 0;
-
- subvec = start;
-
- while (((void *) subvec) < end) {
- subvec = find_gds_subvector (
- subvec, end, GDS_KEY_SelfDefTextMsg);
- if (!subvec)
- break;
- subvec_data = (gds_subvector_t *)
- (((unsigned long) subvec) +
- sizeof (gds_subvector_t));
- subvec_end = (void *)
- (((unsigned long) subvec) + subvec->length);
- retval += eval_selfdeftextmsg (subvec_data, subvec_end);
- subvec = (gds_subvector_t *) subvec_end;
- }
-
- return retval;
-}
-
-inline static int
-eval_cpmsu (gds_vector_t * start, void *end)
-{
- gds_vector_t *vec;
- gds_subvector_t *vec_data;
- void *vec_end;
- int retval = 0;
-
- vec = start;
-
- while (((void *) vec) < end) {
- vec = find_gds_vector (vec, end, GDS_ID_TextCmd);
- if (!vec)
- break;
- vec_data = (gds_subvector_t *)
- (((unsigned long) vec) + sizeof (gds_vector_t));
- vec_end = (void *) (((unsigned long) vec) + vec->length);
- retval += eval_textcmd (vec_data, vec_end);
- vec = (gds_vector_t *) vec_end;
- }
-
- return retval;
-}
-
-inline static int
-eval_mdsmu (gds_vector_t * start, void *end)
-{
- gds_vector_t *vec;
- gds_vector_t *vec_data;
- void *vec_end;
- int retval = 0;
-
- vec = find_gds_vector (start, end, GDS_ID_CPMSU);
- if (vec) {
- vec_data = (gds_vector_t *)
- (((unsigned long) vec) + sizeof (gds_vector_t));
- vec_end = (void *) (((unsigned long) vec) + vec->length);
- retval = eval_cpmsu (vec_data, vec_end);
- }
- return retval;
-}
-
-static int
-eval_evbuf (gds_vector_t * start, void *end)
-{
- gds_vector_t *vec;
- gds_vector_t *vec_data;
- void *vec_end;
- int retval = 0;
-
- vec = find_gds_vector (start, end, GDS_ID_MDSMU);
- if (vec) {
- vec_data = (gds_vector_t *)
- (((unsigned long) vec) + sizeof (gds_vector_t));
- vec_end = (void *) (((unsigned long) vec) + vec->length);
- retval = eval_mdsmu (vec_data, vec_end);
- }
- return retval;
-}
-
-static inline int
-eval_hwc_receive_mask (_hwcb_mask_t mask)
-{
-
- hwc_data.write_nonprio
- = ((mask & ET_Msg_Mask) == ET_Msg_Mask);
-
- hwc_data.write_prio
- = ((mask & ET_PMsgCmd_Mask) == ET_PMsgCmd_Mask);
-
- if (hwc_data.write_prio || hwc_data.write_nonprio) {
- internal_print (
- DELAYED_WRITE,
- HWC_RW_PRINT_HEADER
- "can write messages\n");
- return 0;
- } else {
- internal_print (
- DELAYED_WRITE,
- HWC_RW_PRINT_HEADER
- "can not write messages\n");
- return -1;
- }
-}
-
-static inline int
-eval_hwc_send_mask (_hwcb_mask_t mask)
-{
-
- hwc_data.read_statechange
- = ((mask & ET_StateChange_Mask) == ET_StateChange_Mask);
- if (hwc_data.read_statechange)
- internal_print (
- DELAYED_WRITE,
- HWC_RW_PRINT_HEADER
- "can read state change notifications\n");
- else
- internal_print (
- DELAYED_WRITE,
- HWC_RW_PRINT_HEADER
- "can not read state change notifications\n");
-
- hwc_data.sig_quiesce
- = ((mask & ET_SigQuiesce_Mask) == ET_SigQuiesce_Mask);
- if (hwc_data.sig_quiesce)
- internal_print (
- DELAYED_WRITE,
- HWC_RW_PRINT_HEADER
- "can receive signal quiesce\n");
- else
- internal_print (
- DELAYED_WRITE,
- HWC_RW_PRINT_HEADER
- "can not receive signal quiesce\n");
-
- hwc_data.read_nonprio
- = ((mask & ET_OpCmd_Mask) == ET_OpCmd_Mask);
- if (hwc_data.read_nonprio)
- internal_print (
- DELAYED_WRITE,
- HWC_RW_PRINT_HEADER
- "can read commands\n");
-
- hwc_data.read_prio
- = ((mask & ET_PMsgCmd_Mask) == ET_PMsgCmd_Mask);
- if (hwc_data.read_prio)
- internal_print (
- DELAYED_WRITE,
- HWC_RW_PRINT_HEADER
- "can read priority commands\n");
-
- if (hwc_data.read_prio || hwc_data.read_nonprio) {
- return 0;
- } else {
- internal_print (
- DELAYED_WRITE,
- HWC_RW_PRINT_HEADER
- "can not read commands from operator\n");
- return -1;
- }
-}
-
-static int
-eval_statechangebuf (statechangebuf_t * scbuf)
-{
- int retval = 0;
-
- internal_print (
- DELAYED_WRITE,
- HWC_RW_PRINT_HEADER
- "HWC state change detected\n");
-
- if (scbuf->validity_hwc_active_facility_mask) {
-
- }
- if (scbuf->validity_hwc_receive_mask) {
-
- if (scbuf->mask_length != 4) {
-#ifdef DUMP_HWC_INIT_ERROR
- __asm__ ("LHI 1,0xe50\n\t"
- "LRA 2,0(%0)\n\t"
- "J .+0 \n\t"
- :
- : "a" (scbuf)
- : "1", "2");
-#endif
- } else {
-
- retval += eval_hwc_receive_mask
- (scbuf->hwc_receive_mask);
- }
- }
- if (scbuf->validity_hwc_send_mask) {
-
- if (scbuf->mask_length != 4) {
-#ifdef DUMP_HWC_INIT_ERROR
- __asm__ ("LHI 1,0xe51\n\t"
- "LRA 2,0(%0)\n\t"
- "J .+0 \n\t"
- :
- : "a" (scbuf)
- : "1", "2");
-#endif
- } else {
-
- retval += eval_hwc_send_mask
- (scbuf->hwc_send_mask);
- }
- }
- if (scbuf->validity_read_data_function_mask) {
-
- }
- return retval;
-}
-
-#ifdef CONFIG_SMP
-static volatile unsigned long cpu_quiesce_map;
-
-static void
-do_load_quiesce_psw (void)
-{
- psw_t quiesce_psw;
-
- clear_bit (smp_processor_id (), &cpu_quiesce_map);
- if (smp_processor_id () == 0) {
-
- while (cpu_quiesce_map != 0) ;
-
- quiesce_psw.mask = PSW_BASE_BITS | PSW_MASK_WAIT;
- quiesce_psw.addr = 0xfff;
- __load_psw (quiesce_psw);
- }
- signal_processor (smp_processor_id (), sigp_stop);
-}
-
-static void
-do_machine_quiesce (void)
-{
- cpu_quiesce_map = cpu_online_map;
- smp_call_function (do_load_quiesce_psw, NULL, 0, 0);
- do_load_quiesce_psw ();
-}
-
-#else
-static void
-do_machine_quiesce (void)
-{
- psw_t quiesce_psw;
-
- quiesce_psw.mask = PSW_BASE_BITS | PSW_MASK_WAIT;
- queisce_psw.addr = 0xfff;
- __load_psw (quiesce_psw);
-}
-
-#endif
-
-static int
-process_evbufs (void *start, void *end)
-{
- int retval = 0;
- evbuf_t *evbuf;
- void *evbuf_end;
- gds_vector_t *evbuf_data;
-
- evbuf = (evbuf_t *) start;
- while (((void *) evbuf) < end) {
- evbuf_data = (gds_vector_t *)
- (((unsigned long) evbuf) + sizeof (evbuf_t));
- evbuf_end = (void *) (((unsigned long) evbuf) + evbuf->length);
- switch (evbuf->type) {
- case ET_OpCmd:
- case ET_CntlProgOpCmd:
- case ET_PMsgCmd:
-#ifdef DUMP_HWCB_INPUT
-
- internal_print (
- DELAYED_WRITE,
- HWC_RW_PRINT_HEADER
- "event buffer "
- "at 0x%x up to 0x%x, length: %d\n",
- (unsigned long) evbuf,
- (unsigned long) (evbuf_end - 1),
- evbuf->length);
- dump_storage_area ((void *) evbuf, evbuf->length);
-#endif
- retval += eval_evbuf (evbuf_data, evbuf_end);
- break;
- case ET_StateChange:
- retval += eval_statechangebuf
- ((statechangebuf_t *) evbuf);
- break;
- case ET_SigQuiesce:
-
- _machine_restart = do_machine_quiesce;
- _machine_halt = do_machine_quiesce;
- _machine_power_off = do_machine_quiesce;
- ctrl_alt_del ();
- break;
- default:
- internal_print (
- DELAYED_WRITE,
- HWC_RW_PRINT_HEADER
- "unconditional read: "
- "unknown event buffer found, "
- "type 0x%x",
- evbuf->type);
- retval = -ENOSYS;
- }
- evbuf = (evbuf_t *) evbuf_end;
- }
- return retval;
-}
-
-static int
-unconditional_read_1 (void)
-{
- unsigned short int condition_code;
- read_hwcb_t *hwcb = (read_hwcb_t *) hwc_data.page;
- int retval;
-
-#if 0
-
- if ((!hwc_data.read_prio) && (!hwc_data.read_nonprio))
- return -EOPNOTSUPP;
-
- if (hwc_data.current_servc)
- return -EBUSY;
-#endif
-
- memset (hwcb, 0x00, PAGE_SIZE);
- memcpy (hwcb, &read_hwcb_template, sizeof (read_hwcb_t));
-
- condition_code = service_call (HWC_CMDW_READDATA, hwc_data.page);
-
-#ifdef DUMP_HWC_READ_ERROR
- if (condition_code == HWC_NOT_OPERATIONAL)
- __asm__ ("LHI 1,0xe40\n\t"
- "L 2,0(%0)\n\t"
- "LRA 3,0(%1)\n\t"
- "J .+0 \n\t"
- :
- : "a" (&condition_code), "a" (hwc_data.page)
- : "1", "2", "3");
-#endif
-
- switch (condition_code) {
- case HWC_COMMAND_INITIATED:
- hwc_data.current_servc = HWC_CMDW_READDATA;
- hwc_data.current_hwcb = hwc_data.page;
- retval = condition_code;
- break;
- case HWC_BUSY:
- retval = -EBUSY;
- break;
- default:
- retval = -EIO;
- }
-
- return retval;
-}
-
-static int
-unconditional_read_2 (u32 ext_int_param)
-{
- read_hwcb_t *hwcb = (read_hwcb_t *) hwc_data.page;
-
-#ifdef DUMP_HWC_READ_ERROR
- if ((hwcb->response_code != 0x0020) &&
- (hwcb->response_code != 0x0220) &&
- (hwcb->response_code != 0x60F0) &&
- (hwcb->response_code != 0x62F0))
- __asm__ ("LHI 1,0xe41\n\t"
- "LRA 2,0(%0)\n\t"
- "L 3,0(%1)\n\t"
- "J .+0\n\t"
- :
- : "a" (hwc_data.page), "a" (&(hwcb->response_code))
- : "1", "2", "3");
-#endif
-
- hwc_data.current_servc = 0;
- hwc_data.current_hwcb = NULL;
-
- switch (hwcb->response_code) {
-
- case 0x0020:
- case 0x0220:
- return process_evbufs (
- (void *) (((unsigned long) hwcb) + sizeof (read_hwcb_t)),
- (void *) (((unsigned long) hwcb) + hwcb->length));
-
- case 0x60F0:
- case 0x62F0:
- internal_print (
- IMMEDIATE_WRITE,
- HWC_RW_PRINT_HEADER
- "unconditional read: "
- "got interrupt and tried to read input, "
- "but nothing found (response code=0x%x).\n",
- hwcb->response_code);
- return 0;
-
- case 0x0100:
- internal_print (
- IMMEDIATE_WRITE,
- HWC_RW_PRINT_HEADER
- "unconditional read: HWCB boundary violation - this "
- "must not occur in a correct driver, please contact "
- "author\n");
- return -EIO;
-
- case 0x0300:
- internal_print (
- IMMEDIATE_WRITE,
- HWC_RW_PRINT_HEADER
- "unconditional read: "
- "insufficient HWCB length - this must not occur in a "
- "correct driver, please contact author\n");
- return -EIO;
-
- case 0x01F0:
- internal_print (
- IMMEDIATE_WRITE,
- HWC_RW_PRINT_HEADER
- "unconditional read: "
- "invalid command - this must not occur in a correct "
- "driver, please contact author\n");
- return -EIO;
-
- case 0x40F0:
- internal_print (
- IMMEDIATE_WRITE,
- HWC_RW_PRINT_HEADER
- "unconditional read: invalid function code\n");
- return -EIO;
-
- case 0x70F0:
- internal_print (
- IMMEDIATE_WRITE,
- HWC_RW_PRINT_HEADER
- "unconditional read: invalid selection mask\n");
- return -EIO;
-
- case 0x0040:
- internal_print (
- IMMEDIATE_WRITE,
- HWC_RW_PRINT_HEADER
- "unconditional read: HWC equipment check\n");
- return -EIO;
-
- default:
- internal_print (
- IMMEDIATE_WRITE,
- HWC_RW_PRINT_HEADER
- "unconditional read: invalid response code %x - this "
- "must not occur in a correct driver, please contact "
- "author\n",
- hwcb->response_code);
- return -EIO;
- }
-}
-
-static int
-write_event_mask_1 (void)
-{
- unsigned int condition_code;
- int retval;
-
- condition_code = service_call (HWC_CMDW_WRITEMASK, hwc_data.page);
-
-#ifdef DUMP_HWC_INIT_ERROR
-
- if (condition_code == HWC_NOT_OPERATIONAL)
- __asm__ ("LHI 1,0xe10\n\t"
- "L 2,0(%0)\n\t"
- "LRA 3,0(%1)\n\t"
- "J .+0\n\t"
- :
- : "a" (&condition_code), "a" (hwc_data.page)
- : "1", "2", "3");
-#endif
-
- switch (condition_code) {
- case HWC_COMMAND_INITIATED:
- hwc_data.current_servc = HWC_CMDW_WRITEMASK;
- hwc_data.current_hwcb = hwc_data.page;
- retval = condition_code;
- break;
- case HWC_BUSY:
- retval = -EBUSY;
- break;
- default:
- retval = -EIO;
- }
-
- return retval;
-}
-
-static int
-write_event_mask_2 (u32 ext_int_param)
-{
- init_hwcb_t *hwcb = (init_hwcb_t *) hwc_data.page;
- int retval = 0;
-
- if (hwcb->response_code != 0x0020) {
-#ifdef DUMP_HWC_INIT_ERROR
- __asm__ ("LHI 1,0xe11\n\t"
- "LRA 2,0(%0)\n\t"
- "L 3,0(%1)\n\t"
- "J .+0\n\t"
- :
- : "a" (hwcb), "a" (&(hwcb->response_code))
- : "1", "2", "3");
-#else
- retval = -1;
-#endif
- } else {
- if (hwcb->mask_length != 4) {
-#ifdef DUMP_HWC_INIT_ERROR
- __asm__ ("LHI 1,0xe52\n\t"
- "LRA 2,0(%0)\n\t"
- "J .+0 \n\t"
- :
- : "a" (hwcb)
- : "1", "2");
-#endif
- } else {
- retval += eval_hwc_receive_mask
- (hwcb->hwc_receive_mask);
- retval += eval_hwc_send_mask (hwcb->hwc_send_mask);
- }
- }
-
- hwc_data.current_servc = 0;
- hwc_data.current_hwcb = NULL;
-
- return retval;
-}
-
-static int
-set_hwc_ioctls (hwc_ioctls_t * ioctls, char correct)
-{
- int retval = 0;
- hwc_ioctls_t tmp;
-
- if (ioctls->width_htab > MAX_MESSAGE_SIZE) {
- if (correct)
- tmp.width_htab = MAX_MESSAGE_SIZE;
- else
- retval = -EINVAL;
- } else
- tmp.width_htab = ioctls->width_htab;
-
- tmp.echo = ioctls->echo;
-
- if (ioctls->columns > MAX_MESSAGE_SIZE) {
- if (correct)
- tmp.columns = MAX_MESSAGE_SIZE;
- else
- retval = -EINVAL;
- } else
- tmp.columns = ioctls->columns;
-
- tmp.final_nl = ioctls->final_nl;
-
- if (ioctls->max_hwcb < 2) {
- if (correct)
- tmp.max_hwcb = 2;
- else
- retval = -EINVAL;
- } else
- tmp.max_hwcb = ioctls->max_hwcb;
-
- tmp.tolower = ioctls->tolower;
-
- if (ioctls->kmem_hwcb > ioctls->max_hwcb) {
- if (correct)
- tmp.kmem_hwcb = ioctls->max_hwcb;
- else
- retval = -EINVAL;
- } else
- tmp.kmem_hwcb = ioctls->kmem_hwcb;
-
- if (ioctls->kmem_hwcb > MAX_KMEM_PAGES) {
- if (correct)
- ioctls->kmem_hwcb = MAX_KMEM_PAGES;
- else
- retval = -EINVAL;
- }
- if (ioctls->kmem_hwcb < 2) {
- if (correct)
- ioctls->kmem_hwcb = 2;
- else
- retval = -EINVAL;
- }
- tmp.delim = ioctls->delim;
-
- if (!(retval < 0))
- hwc_data.ioctls = tmp;
-
- return retval;
-}
-
-int
-do_hwc_init (void)
-{
- int retval;
-
- memcpy (hwc_data.page, &init_hwcb_template, sizeof (init_hwcb_t));
-
- do {
-
- retval = write_event_mask_1 ();
-
- if (retval == -EBUSY) {
-
- hwc_data.flags |= HWC_INIT;
-
- __ctl_store (cr0, 0, 0);
- cr0_save = cr0;
- cr0 |= 0x00000200;
- cr0 &= 0xFFFFF3AC;
- __ctl_load (cr0, 0, 0);
-
- asm volatile ("STOSM %0,0x01"
- :"=m" (psw_mask)::"memory");
-
- while (!(hwc_data.flags & HWC_INTERRUPT))
- barrier ();
-
- asm volatile ("STNSM %0,0xFE"
- :"=m" (psw_mask)::"memory");
-
- __ctl_load (cr0_save, 0, 0);
-
- hwc_data.flags &= ~HWC_INIT;
- }
- } while (retval == -EBUSY);
-
- if (retval == -EIO) {
- hwc_data.flags |= HWC_BROKEN;
- printk (HWC_RW_PRINT_HEADER "HWC not operational\n");
- }
- return retval;
-}
-
-void hwc_interrupt_handler (struct pt_regs *regs, __u16 code);
-
-int
-hwc_init (void)
-{
- int retval;
-
-#ifdef BUFFER_STRESS_TEST
-
- init_hwcb_t *hwcb;
- int i;
-
-#endif
-
- if (register_early_external_interrupt (0x2401, hwc_interrupt_handler,
- &ext_int_info_hwc) != 0)
- panic ("Couldn't request external interrupts 0x2401");
-
- spin_lock_init (&hwc_data.lock);
-
-#ifdef USE_VM_DETECTION
-
- if (MACHINE_IS_VM) {
-
- if (hwc_data.init_ioctls.columns > 76)
- hwc_data.init_ioctls.columns = 76;
- hwc_data.init_ioctls.tolower = 1;
- if (!hwc_data.init_ioctls.delim)
- hwc_data.init_ioctls.delim = DEFAULT_CASE_DELIMITER;
- } else {
- hwc_data.init_ioctls.tolower = 0;
- hwc_data.init_ioctls.delim = 0;
- }
-#endif
- retval = set_hwc_ioctls (&hwc_data.init_ioctls, 1);
-
- hwc_data.kmem_start = (unsigned long)
- alloc_bootmem_low_pages (hwc_data.ioctls.kmem_hwcb * PAGE_SIZE);
- hwc_data.kmem_end = hwc_data.kmem_start +
- hwc_data.ioctls.kmem_hwcb * PAGE_SIZE - 1;
-
- retval = do_hwc_init ();
-
- ctl_set_bit (0, 9);
-
-#ifdef BUFFER_STRESS_TEST
-
- internal_print (
- DELAYED_WRITE,
- HWC_RW_PRINT_HEADER
- "use %i bytes for buffering.\n",
- hwc_data.ioctls.kmem_hwcb * PAGE_SIZE);
- for (i = 0; i < 500; i++) {
- hwcb = (init_hwcb_t *) BUF_HWCB;
- internal_print (
- DELAYED_WRITE,
- HWC_RW_PRINT_HEADER
- "This is stress test message #%i, free: %i bytes\n",
- i,
- MAX_HWCB_ROOM - (hwcb->length + sizeof (mto_t)));
- }
-
-#endif
-
- return /*retval */ 0;
-}
-
-signed int
-hwc_register_calls (hwc_high_level_calls_t * calls)
-{
- if (calls == NULL)
- return -EINVAL;
-
- if (hwc_data.calls != NULL)
- return -EBUSY;
-
- hwc_data.calls = calls;
- return 0;
-}
-
-signed int
-hwc_unregister_calls (hwc_high_level_calls_t * calls)
-{
- if (hwc_data.calls == NULL)
- return -EINVAL;
-
- if (calls != hwc_data.calls)
- return -EINVAL;
-
- hwc_data.calls = NULL;
- return 0;
-}
-
-int
-hwc_send (hwc_request_t * req)
-{
- unsigned long flags;
- int retval;
- int cc;
-
- spin_lock_irqsave (&hwc_data.lock, flags);
- if (!req || !req->callback || !req->block) {
- retval = -EINVAL;
- goto unlock;
- }
- if (hwc_data.request) {
- retval = -ENOTSUPP;
- goto unlock;
- }
- cc = service_call (req->word, req->block);
- switch (cc) {
- case 0:
- hwc_data.request = req;
- hwc_data.current_servc = req->word;
- hwc_data.current_hwcb = req->block;
- retval = 0;
- break;
- case 2:
- retval = -EBUSY;
- break;
- default:
- retval = -ENOSYS;
-
- }
- unlock:
- spin_unlock_irqrestore (&hwc_data.lock, flags);
- return retval;
-}
-
-EXPORT_SYMBOL (hwc_send);
-
-void
-do_hwc_callback (u32 ext_int_param)
-{
- if (!hwc_data.request || !hwc_data.request->callback)
- return;
- if ((ext_int_param & HWC_EXT_INT_PARAM_ADDR)
- != (unsigned long) hwc_data.request->block)
- return;
- hwc_data.request->callback (hwc_data.request);
- hwc_data.request = NULL;
- hwc_data.current_hwcb = NULL;
- hwc_data.current_servc = 0;
-}
-
-void
-hwc_do_interrupt (u32 ext_int_param)
-{
- u32 finished_hwcb = ext_int_param & HWC_EXT_INT_PARAM_ADDR;
- u32 evbuf_pending = ext_int_param & HWC_EXT_INT_PARAM_PEND;
-
- if (hwc_data.flags & HWC_PTIMER_RUNS) {
- del_timer (&hwc_data.poll_timer);
- hwc_data.flags &= ~HWC_PTIMER_RUNS;
- }
- if (finished_hwcb) {
-
- if ((unsigned long) hwc_data.current_hwcb != finished_hwcb) {
- internal_print (
- DELAYED_WRITE,
- HWC_RW_PRINT_HEADER
- "interrupt: mismatch: "
- "ext. int param. (0x%x) vs. "
- "current HWCB (0x%x)\n",
- ext_int_param,
- hwc_data.current_hwcb);
- } else {
- if (hwc_data.request) {
-
- do_hwc_callback (ext_int_param);
- } else {
-
- switch (hwc_data.current_servc) {
-
- case HWC_CMDW_WRITEMASK:
-
- write_event_mask_2 (ext_int_param);
- break;
-
- case HWC_CMDW_WRITEDATA:
-
- write_event_data_2 (ext_int_param);
- break;
-
- case HWC_CMDW_READDATA:
-
- unconditional_read_2 (ext_int_param);
- break;
- default:
- break;
- }
- }
- }
- } else {
-
- if (hwc_data.current_hwcb) {
- internal_print (
- DELAYED_WRITE,
- HWC_RW_PRINT_HEADER
- "interrupt: mismatch: "
- "ext. int. param. (0x%x) vs. "
- "current HWCB (0x%x)\n",
- ext_int_param,
- hwc_data.current_hwcb);
- }
- }
-
- if (evbuf_pending) {
-
- unconditional_read_1 ();
- } else {
-
- write_event_data_1 ();
- }
-
- if (!hwc_data.calls || !hwc_data.calls->wake_up)
- return;
- (hwc_data.calls->wake_up) ();
-}
-
-void
-hwc_interrupt_handler (struct pt_regs *regs, __u16 code)
-{
- u32 ext_int_param = hwc_ext_int_param ();
-
- irq_enter ();
-
- if (hwc_data.flags & HWC_INIT) {
-
- hwc_data.flags |= HWC_INTERRUPT;
- } else if (hwc_data.flags & HWC_BROKEN) {
-
- if (!do_hwc_init ()) {
- hwc_data.flags &= ~HWC_BROKEN;
- internal_print (DELAYED_WRITE,
- HWC_RW_PRINT_HEADER
- "delayed HWC setup after"
- " temporary breakdown"
- " (ext. int. parameter=0x%x)\n",
- ext_int_param);
- }
- } else {
- spin_lock (&hwc_data.lock);
- hwc_do_interrupt (ext_int_param);
- spin_unlock (&hwc_data.lock);
- }
- irq_exit ();
-}
-
-void
-hwc_unblank (void)
-{
-
- spin_lock (&hwc_data.lock);
- spin_unlock (&hwc_data.lock);
-
- __ctl_store (cr0, 0, 0);
- cr0_save = cr0;
- cr0 |= 0x00000200;
- cr0 &= 0xFFFFF3AC;
- __ctl_load (cr0, 0, 0);
-
- asm volatile ("STOSM %0,0x01":"=m" (psw_mask)::"memory");
-
- while (ALL_HWCB_CHAR)
- barrier ();
-
- asm volatile ("STNSM %0,0xFE":"=m" (psw_mask)::"memory");
-
- __ctl_load (cr0_save, 0, 0);
-}
-
-int
-hwc_ioctl (unsigned int cmd, unsigned long arg)
-{
- hwc_ioctls_t tmp = hwc_data.ioctls;
- int retval = 0;
- unsigned long flags;
- unsigned int obuf;
-
- spin_lock_irqsave (&hwc_data.lock, flags);
-
- switch (cmd) {
-
- case TIOCHWCSHTAB:
- if (get_user (tmp.width_htab, (ioctl_htab_t *) arg))
- goto fault;
- break;
-
- case TIOCHWCSECHO:
- if (get_user (tmp.echo, (ioctl_echo_t *) arg))
- goto fault;
- break;
-
- case TIOCHWCSCOLS:
- if (get_user (tmp.columns, (ioctl_cols_t *) arg))
- goto fault;
- break;
-
- case TIOCHWCSNL:
- if (get_user (tmp.final_nl, (ioctl_nl_t *) arg))
- goto fault;
- break;
-
- case TIOCHWCSOBUF:
- if (get_user (obuf, (unsigned int *) arg))
- goto fault;
- if (obuf & 0xFFF)
- tmp.max_hwcb = (((obuf | 0xFFF) + 1) >> 12);
- else
- tmp.max_hwcb = (obuf >> 12);
- break;
-
- case TIOCHWCSCASE:
- if (get_user (tmp.tolower, (ioctl_case_t *) arg))
- goto fault;
- break;
-
- case TIOCHWCSDELIM:
- if (get_user (tmp.delim, (ioctl_delim_t *) arg))
- goto fault;
- break;
-
- case TIOCHWCSINIT:
- retval = set_hwc_ioctls (&hwc_data.init_ioctls, 1);
- break;
-
- case TIOCHWCGHTAB:
- if (put_user (tmp.width_htab, (ioctl_htab_t *) arg))
- goto fault;
- break;
-
- case TIOCHWCGECHO:
- if (put_user (tmp.echo, (ioctl_echo_t *) arg))
- goto fault;
- break;
-
- case TIOCHWCGCOLS:
- if (put_user (tmp.columns, (ioctl_cols_t *) arg))
- goto fault;
- break;
-
- case TIOCHWCGNL:
- if (put_user (tmp.final_nl, (ioctl_nl_t *) arg))
- goto fault;
- break;
-
- case TIOCHWCGOBUF:
- if (put_user (tmp.max_hwcb, (ioctl_obuf_t *) arg))
- goto fault;
- break;
-
- case TIOCHWCGKBUF:
- if (put_user (tmp.kmem_hwcb, (ioctl_obuf_t *) arg))
- goto fault;
- break;
-
- case TIOCHWCGCASE:
- if (put_user (tmp.tolower, (ioctl_case_t *) arg))
- goto fault;
- break;
-
- case TIOCHWCGDELIM:
- if (put_user (tmp.delim, (ioctl_delim_t *) arg))
- goto fault;
- break;
-#if 0
-
- case TIOCHWCGINIT:
- if (put_user (&hwc_data.init_ioctls, (hwc_ioctls_t *) arg))
- goto fault;
- break;
-
- case TIOCHWCGCURR:
- if (put_user (&hwc_data.ioctls, (hwc_ioctls_t *) arg))
- goto fault;
- break;
-#endif
-
- default:
- goto noioctlcmd;
- }
-
- if (_IOC_DIR (cmd) == _IOC_WRITE)
- retval = set_hwc_ioctls (&tmp, 0);
-
- goto out;
-
- fault:
- retval = -EFAULT;
- goto out;
- noioctlcmd:
- retval = -ENOIOCTLCMD;
- out:
- spin_unlock_irqrestore (&hwc_data.lock, flags);
- return retval;
-}
diff -urN linux-2.5.48/drivers/s390/char/hwc_rw.h linux-2.5.48-s390/drivers/s390/char/hwc_rw.h
--- linux-2.5.48/drivers/s390/char/hwc_rw.h Mon Nov 18 05:29:29 2002
+++ linux-2.5.48-s390/drivers/s390/char/hwc_rw.h Thu Jan 1 01:00:00 1970
@@ -1,132 +0,0 @@
-/*
- * drivers/s390/char/hwc_rw.h
- * interface to the HWC-read/write driver
- *
- * S390 version
- * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Martin Peschke <mpeschke@de.ibm.com>
- */
-
-#ifndef __HWC_RW_H__
-#define __HWC_RW_H__
-
-#include <linux/ioctl.h>
-
-typedef struct {
-
- void (*move_input) (unsigned char *, unsigned int);
-
- void (*wake_up) (void);
-} hwc_high_level_calls_t;
-
-struct _hwc_request;
-
-typedef void hwc_callback_t (struct _hwc_request *);
-
-typedef struct _hwc_request {
- void *block;
- u32 word;
- hwc_callback_t *callback;
- void *data;
-} __attribute__ ((packed))
-
-hwc_request_t;
-
-#define HWC_ASCEBC(x) ((MACHINE_IS_VM ? _ascebc[x] : _ascebc_500[x]))
-
-#define HWC_EBCASC_STR(s,c) ((MACHINE_IS_VM ? EBCASC(s,c) : EBCASC_500(s,c)))
-
-#define HWC_ASCEBC_STR(s,c) ((MACHINE_IS_VM ? ASCEBC(s,c) : ASCEBC_500(s,c)))
-
-#define IN_HWCB 1
-#define IN_WRITE_BUF 2
-#define IN_BUFS_TOTAL (IN_HWCB | IN_WRITE_BUF)
-
-typedef unsigned short int ioctl_htab_t;
-typedef unsigned char ioctl_echo_t;
-typedef unsigned short int ioctl_cols_t;
-typedef signed char ioctl_nl_t;
-typedef unsigned short int ioctl_obuf_t;
-typedef unsigned char ioctl_case_t;
-typedef unsigned char ioctl_delim_t;
-
-typedef struct {
- ioctl_htab_t width_htab;
- ioctl_echo_t echo;
- ioctl_cols_t columns;
- ioctl_nl_t final_nl;
- ioctl_obuf_t max_hwcb;
- ioctl_obuf_t kmem_hwcb;
- ioctl_case_t tolower;
- ioctl_delim_t delim;
-} hwc_ioctls_t;
-
-extern hwc_ioctls_t _hwc_ioctls;
-
-#define HWC_IOCTL_LETTER 'B'
-
-#define TIOCHWCSHTAB _IOW(HWC_IOCTL_LETTER, 0, _hwc_ioctls.width_htab)
-
-#define TIOCHWCSECHO _IOW(HWC_IOCTL_LETTER, 1, _hwc_ioctls.echo)
-
-#define TIOCHWCSCOLS _IOW(HWC_IOCTL_LETTER, 2, _hwc_ioctls.columns)
-
-#define TIOCHWCSNL _IOW(HWC_IOCTL_LETTER, 4, _hwc_ioctls.final_nl)
-
-#define TIOCHWCSOBUF _IOW(HWC_IOCTL_LETTER, 5, _hwc_ioctls.max_hwcb)
-
-#define TIOCHWCSINIT _IO(HWC_IOCTL_LETTER, 6)
-
-#define TIOCHWCSCASE _IOW(HWC_IOCTL_LETTER, 7, _hwc_ioctls.tolower)
-
-#define TIOCHWCSDELIM _IOW(HWC_IOCTL_LETTER, 9, _hwc_ioctls.delim)
-
-#define TIOCHWCGHTAB _IOR(HWC_IOCTL_LETTER, 10, _hwc_ioctls.width_htab)
-
-#define TIOCHWCGECHO _IOR(HWC_IOCTL_LETTER, 11, _hwc_ioctls.echo)
-
-#define TIOCHWCGCOLS _IOR(HWC_IOCTL_LETTER, 12, _hwc_ioctls.columns)
-
-#define TIOCHWCGNL _IOR(HWC_IOCTL_LETTER, 14, _hwc_ioctls.final_nl)
-
-#define TIOCHWCGOBUF _IOR(HWC_IOCTL_LETTER, 15, _hwc_ioctls.max_hwcb)
-
-#define TIOCHWCGINIT _IOR(HWC_IOCTL_LETTER, 16, _hwc_ioctls)
-
-#define TIOCHWCGCASE _IOR(HWC_IOCTL_LETTER, 17, _hwc_ioctls.tolower)
-
-#define TIOCHWCGDELIM _IOR(HWC_IOCTL_LETTER, 19, _hwc_ioctls.delim)
-
-#define TIOCHWCGKBUF _IOR(HWC_IOCTL_LETTER, 20, _hwc_ioctls.max_hwcb)
-
-#define TIOCHWCGCURR _IOR(HWC_IOCTL_LETTER, 21, _hwc_ioctls)
-
-#ifndef __HWC_RW_C__
-
-extern int hwc_init (void);
-
-extern int hwc_write (int from_user, const unsigned char *, unsigned int);
-
-extern unsigned int hwc_chars_in_buffer (unsigned char);
-
-extern unsigned int hwc_write_room (unsigned char);
-
-extern void hwc_flush_buffer (unsigned char);
-
-extern void hwc_unblank (void);
-
-extern signed int hwc_ioctl (unsigned int, unsigned long);
-
-extern void do_hwc_interrupt (void);
-
-extern int hwc_printk (const char *,...);
-
-extern signed int hwc_register_calls (hwc_high_level_calls_t *);
-
-extern signed int hwc_unregister_calls (hwc_high_level_calls_t *);
-
-extern int hwc_send (hwc_request_t *);
-
-#endif
-
-#endif
diff -urN linux-2.5.48/drivers/s390/char/hwc_tty.c linux-2.5.48-s390/drivers/s390/char/hwc_tty.c
--- linux-2.5.48/drivers/s390/char/hwc_tty.c Mon Nov 18 05:29:55 2002
+++ linux-2.5.48-s390/drivers/s390/char/hwc_tty.c Thu Jan 1 01:00:00 1970
@@ -1,276 +0,0 @@
-/*
- * drivers/s390/char/hwc_tty.c
- * HWC line mode terminal driver.
- *
- * S390 version
- * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Martin Peschke <mpeschke@de.ibm.com>
- *
- * Thanks to Martin Schwidefsky.
- */
-
-#include <linux/config.h>
-#include <linux/major.h>
-#include <linux/termios.h>
-#include <linux/tty.h>
-#include <linux/tty_driver.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/devfs_fs_kernel.h>
-#include <linux/init.h>
-
-#include <asm/uaccess.h>
-
-#include "hwc_rw.h"
-#include "ctrlchar.h"
-
-#define HWC_TTY_PRINT_HEADER "hwc tty driver: "
-
-#define HWC_TTY_BUF_SIZE 512
-
-typedef struct {
-
- struct tty_struct *tty;
-
- unsigned char buf[HWC_TTY_BUF_SIZE];
-
- unsigned short int buf_count;
-
- spinlock_t lock;
-
- hwc_high_level_calls_t calls;
-} hwc_tty_data_struct;
-
-static hwc_tty_data_struct hwc_tty_data =
-{ /* NULL/0 */ };
-static struct tty_driver hwc_tty_driver;
-static struct tty_struct *hwc_tty_table[1];
-static struct termios *hwc_tty_termios[1];
-static struct termios *hwc_tty_termios_locked[1];
-static int hwc_tty_refcount = 0;
-
-extern struct termios tty_std_termios;
-
-void hwc_tty_wake_up (void);
-void hwc_tty_input (unsigned char *, unsigned int);
-
-static int
-hwc_tty_open (struct tty_struct *tty,
- struct file *filp)
-{
-
- if (minor (tty->device) - tty->driver.minor_start)
- return -ENODEV;
-
- tty->driver_data = &hwc_tty_data;
- hwc_tty_data.buf_count = 0;
- hwc_tty_data.tty = tty;
- tty->low_latency = 0;
-
- hwc_tty_data.calls.wake_up = hwc_tty_wake_up;
- hwc_tty_data.calls.move_input = hwc_tty_input;
- hwc_register_calls (&(hwc_tty_data.calls));
-
- return 0;
-}
-
-static void
-hwc_tty_close (struct tty_struct *tty,
- struct file *filp)
-{
- if (minor (tty->device) != tty->driver.minor_start) {
- printk (KERN_WARNING HWC_TTY_PRINT_HEADER
- "do not close hwc tty because of wrong device number");
- return;
- }
- if (tty->count > 1)
- return;
-
- hwc_tty_data.tty = NULL;
-
- hwc_unregister_calls (&(hwc_tty_data.calls));
-}
-
-static int
-hwc_tty_write_room (struct tty_struct *tty)
-{
- int retval;
-
- retval = hwc_write_room (IN_BUFS_TOTAL);
- return retval;
-}
-
-static int
-hwc_tty_write (struct tty_struct *tty,
- int from_user,
- const unsigned char *buf,
- int count)
-{
- int retval;
-
- if (hwc_tty_data.buf_count > 0) {
- hwc_write (0, hwc_tty_data.buf, hwc_tty_data.buf_count);
- hwc_tty_data.buf_count = 0;
- }
- retval = hwc_write (from_user, buf, count);
- return retval;
-}
-
-static void
-hwc_tty_put_char (struct tty_struct *tty,
- unsigned char ch)
-{
- unsigned long flags;
-
- spin_lock_irqsave (&hwc_tty_data.lock, flags);
- if (hwc_tty_data.buf_count >= HWC_TTY_BUF_SIZE) {
- hwc_write (0, hwc_tty_data.buf, hwc_tty_data.buf_count);
- hwc_tty_data.buf_count = 0;
- }
- hwc_tty_data.buf[hwc_tty_data.buf_count] = ch;
- hwc_tty_data.buf_count++;
- spin_unlock_irqrestore (&hwc_tty_data.lock, flags);
-}
-
-static void
-hwc_tty_flush_chars (struct tty_struct *tty)
-{
- unsigned long flags;
-
- spin_lock_irqsave (&hwc_tty_data.lock, flags);
- hwc_write (0, hwc_tty_data.buf, hwc_tty_data.buf_count);
- hwc_tty_data.buf_count = 0;
- spin_unlock_irqrestore (&hwc_tty_data.lock, flags);
-}
-
-static int
-hwc_tty_chars_in_buffer (struct tty_struct *tty)
-{
- int retval;
-
- retval = hwc_chars_in_buffer (IN_BUFS_TOTAL);
- return retval;
-}
-
-static void
-hwc_tty_flush_buffer (struct tty_struct *tty)
-{
- hwc_tty_wake_up ();
-}
-
-static int
-hwc_tty_ioctl (
- struct tty_struct *tty,
- struct file *file,
- unsigned int cmd,
- unsigned long arg)
-{
- if (tty->flags & (1 << TTY_IO_ERROR))
- return -EIO;
-
- return hwc_ioctl (cmd, arg);
-}
-
-void
-hwc_tty_wake_up (void)
-{
- if (hwc_tty_data.tty == NULL)
- return;
- if ((hwc_tty_data.tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
- hwc_tty_data.tty->ldisc.write_wakeup)
- (hwc_tty_data.tty->ldisc.write_wakeup) (hwc_tty_data.tty);
- wake_up_interruptible (&hwc_tty_data.tty->write_wait);
-}
-
-void
-hwc_tty_input (unsigned char *buf, unsigned int count)
-{
- struct tty_struct *tty = hwc_tty_data.tty;
-
- if (tty != NULL) {
- unsigned int cchar = ctrlchar_handle(buf, count, tty);
-
- switch (cchar & CTRLCHAR_MASK) {
- case CTRLCHAR_SYSRQ:
- return;
-
- case CTRLCHAR_CTRL:
- tty->flip.count++;
- *tty->flip.flag_buf_ptr++ = TTY_NORMAL;
- *tty->flip.char_buf_ptr++ = cchar;
- break;
-
- case CTRLCHAR_NONE:
- memcpy (tty->flip.char_buf_ptr, buf, count);
- if (count < 2 || (
- strncmp (buf + count - 2, "^n", 2) ||
- strncmp (buf + count - 2, "\0252n", 2))) {
- tty->flip.char_buf_ptr[count] = '\n';
- count++;
- } else
- count -= 2;
- memset (tty->flip.flag_buf_ptr, TTY_NORMAL, count);
- tty->flip.char_buf_ptr += count;
- tty->flip.flag_buf_ptr += count;
- tty->flip.count += count;
- break;
- }
- tty_flip_buffer_push (tty);
- hwc_tty_wake_up ();
- }
-}
-
-void
-hwc_tty_init (void)
-{
- if (!CONSOLE_IS_HWC)
- return;
-
- memset (&hwc_tty_driver, 0, sizeof (struct tty_driver));
- memset (&hwc_tty_data, 0, sizeof (hwc_tty_data_struct));
- hwc_tty_driver.magic = TTY_DRIVER_MAGIC;
- hwc_tty_driver.driver_name = "tty_hwc";
- hwc_tty_driver.name = "ttyS";
- hwc_tty_driver.name_base = 0;
- hwc_tty_driver.major = TTY_MAJOR;
- hwc_tty_driver.minor_start = 64;
- hwc_tty_driver.num = 1;
- hwc_tty_driver.type = TTY_DRIVER_TYPE_SYSTEM;
- hwc_tty_driver.subtype = SYSTEM_TYPE_TTY;
- hwc_tty_driver.init_termios = tty_std_termios;
- hwc_tty_driver.init_termios.c_iflag = IGNBRK | IGNPAR;
- hwc_tty_driver.init_termios.c_oflag = ONLCR;
- hwc_tty_driver.init_termios.c_lflag = ISIG | ECHO;
- hwc_tty_driver.flags = TTY_DRIVER_REAL_RAW;
- hwc_tty_driver.refcount = &hwc_tty_refcount;
-
- hwc_tty_driver.table = hwc_tty_table;
- hwc_tty_driver.termios = hwc_tty_termios;
- hwc_tty_driver.termios_locked = hwc_tty_termios_locked;
-
- hwc_tty_driver.open = hwc_tty_open;
- hwc_tty_driver.close = hwc_tty_close;
- hwc_tty_driver.write = hwc_tty_write;
- hwc_tty_driver.put_char = hwc_tty_put_char;
- hwc_tty_driver.flush_chars = hwc_tty_flush_chars;
- hwc_tty_driver.write_room = hwc_tty_write_room;
- hwc_tty_driver.chars_in_buffer = hwc_tty_chars_in_buffer;
- hwc_tty_driver.flush_buffer = hwc_tty_flush_buffer;
- hwc_tty_driver.ioctl = hwc_tty_ioctl;
-
- hwc_tty_driver.throttle = NULL;
- hwc_tty_driver.unthrottle = NULL;
- hwc_tty_driver.send_xchar = NULL;
- hwc_tty_driver.set_termios = NULL;
- hwc_tty_driver.set_ldisc = NULL;
- hwc_tty_driver.stop = NULL;
- hwc_tty_driver.start = NULL;
- hwc_tty_driver.hangup = NULL;
- hwc_tty_driver.break_ctl = NULL;
- hwc_tty_driver.wait_until_sent = NULL;
- hwc_tty_driver.read_proc = NULL;
- hwc_tty_driver.write_proc = NULL;
-
- if (tty_register_driver (&hwc_tty_driver))
- panic ("Couldn't register hwc_tty driver\n");
-}
diff -urN linux-2.5.48/include/asm-s390/setup.h linux-2.5.48-s390/include/asm-s390/setup.h
--- linux-2.5.48/include/asm-s390/setup.h Mon Nov 18 05:29:54 2002
+++ linux-2.5.48-s390/include/asm-s390/setup.h Mon Nov 18 20:14:32 2002
@@ -31,7 +31,7 @@
#define MACHINE_HAS_CSP (machine_flags & 8)
#define MACHINE_HAS_MVPG (machine_flags & 16)

-#define MACHINE_HAS_HWC (!MACHINE_IS_P390)
+#define MACHINE_HAS_SCLP (!MACHINE_IS_P390)

/*
* Console mode. Override with conmode=
@@ -40,10 +40,10 @@
extern unsigned int console_device;

#define CONSOLE_IS_UNDEFINED (console_mode == 0)
-#define CONSOLE_IS_HWC (console_mode == 1)
+#define CONSOLE_IS_SCLP (console_mode == 1)
#define CONSOLE_IS_3215 (console_mode == 2)
#define CONSOLE_IS_3270 (console_mode == 3)
-#define SET_CONSOLE_HWC do { console_mode = 1; } while (0)
+#define SET_CONSOLE_SCLP do { console_mode = 1; } while (0)
#define SET_CONSOLE_3215 do { console_mode = 2; } while (0)
#define SET_CONSOLE_3270 do { console_mode = 3; } while (0)

diff -urN linux-2.5.48/include/asm-s390x/setup.h linux-2.5.48-s390/include/asm-s390x/setup.h
--- linux-2.5.48/include/asm-s390x/setup.h Mon Nov 18 05:29:48 2002
+++ linux-2.5.48-s390/include/asm-s390x/setup.h Mon Nov 18 20:14:32 2002
@@ -30,7 +30,7 @@
#define MACHINE_HAS_MVPG (machine_flags & 16)
#define MACHINE_HAS_DIAG44 (machine_flags & 32)

-#define MACHINE_HAS_HWC (!MACHINE_IS_P390)
+#define MACHINE_HAS_SCLP (!MACHINE_IS_P390)

/*
* Console mode. Override with conmode=
@@ -39,10 +39,10 @@
extern unsigned int console_device;

#define CONSOLE_IS_UNDEFINED (console_mode == 0)
-#define CONSOLE_IS_HWC (console_mode == 1)
+#define CONSOLE_IS_SCLP (console_mode == 1)
#define CONSOLE_IS_3215 (console_mode == 2)
#define CONSOLE_IS_3270 (console_mode == 3)
-#define SET_CONSOLE_HWC do { console_mode = 1; } while (0)
+#define SET_CONSOLE_SCLP do { console_mode = 1; } while (0)
#define SET_CONSOLE_3215 do { console_mode = 2; } while (0)
#define SET_CONSOLE_3270 do { console_mode = 3; } while (0)

-
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