#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 <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>#include "hwc.h"#include "hwc_rw.h"Include dependency graph for hwc_rw.c:
Go to the source code of this file.
Data Structures | |
| struct | __attribute__ |
Defines | |
| #define | MIN(a, b) (((a<b) ? a : b)) |
| #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_RW_PRINT_HEADER "hwc low level driver: " |
| #define | USE_VM_DETECTION |
| #define | DEFAULT_CASE_DELIMITER '%' |
| #define | DUMP_HWC_INIT_ERROR |
| #define | DUMP_HWC_WRITE_ERROR |
| #define | DUMP_HWC_WRITE_LIST_ERROR |
| #define | DUMP_HWC_READ_ERROR |
| #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) |
| #define | __HWC_RW_C__ |
| #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 |
| #define | DELAYED_WRITE 0 |
| #define | IMMEDIATE_WRITE 1 |
Typedefs | |
| typedef unsigned long | kmem_pages_t |
Functions | |
| static unsigned char _page[PAGE_SIZE] | __attribute__ ((aligned(PAGE_SIZE))) |
| static unsigned long cr0 | __attribute__ ((aligned(8))) |
| static signed int | do_hwc_write (int from_user, unsigned char *, unsigned int, unsigned char) |
| static asmlinkage int | internal_print (char write_time, char *fmt,...) |
| int | hwc_printk (const char *fmt,...) |
| static u32 | service_call (u32 hwc_command_word, unsigned char hwcb[]) |
| static unsigned long | hwc_ext_int_param (void) |
| static int | prepare_write_hwcb (void) |
| static int | sane_write_hwcb (void) |
| static int | reuse_write_hwcb (void) |
| static int | allocate_write_hwcb (void) |
| static int | release_write_hwcb (void) |
| static int | add_mto (unsigned char *message, unsigned short int count) |
| static int | write_event_data_1 (void) |
| static void | do_poll_hwc (unsigned long data) |
| void | start_poll_hwc (void) |
| static void | flush_hwcbs (void) |
| static int | write_event_data_2 (u32 ext_int_param) |
| static void | do_put_line (unsigned char *message, unsigned short count) |
| static void | put_line (unsigned char *message, unsigned short count) |
| static void | set_alarm (void) |
| static void | hwc_write_timeout (unsigned long data) |
| signed int | hwc_write (int from_user, const unsigned char *msg, unsigned int count) |
| unsigned int | hwc_chars_in_buffer (unsigned char flag) |
| static int | nr_setbits (kmem_pages_t arg) |
| unsigned int | hwc_write_room (unsigned char flag) |
| void | hwc_flush_buffer (unsigned char flag) |
| unsigned short int | seperate_cases (unsigned char *buf, unsigned short int count) |
| static gds_vector_t * | find_gds_vector (gds_vector_t *start, void *end, u16 id) |
| static gds_subvector_t * | find_gds_subvector (gds_subvector_t *start, void *end, u8 key) |
| static int | get_input (void *start, void *end) |
| static int | eval_selfdeftextmsg (gds_subvector_t *start, void *end) |
| static int | eval_textcmd (gds_subvector_t *start, void *end) |
| static int | eval_cpmsu (gds_vector_t *start, void *end) |
| static int | eval_mdsmu (gds_vector_t *start, void *end) |
| static int | eval_evbuf (gds_vector_t *start, void *end) |
| static int | eval_hwc_receive_mask (_hwcb_mask_t mask) |
| static int | eval_hwc_send_mask (_hwcb_mask_t mask) |
| static int | eval_statechangebuf (statechangebuf_t *scbuf) |
| static int | process_evbufs (void *start, void *end) |
| static int | unconditional_read_1 (void) |
| static int | unconditional_read_2 (u32 ext_int_param) |
| static int | write_event_mask_1 (void) |
| static int | write_event_mask_2 (u32 ext_int_param) |
| static int | set_hwc_ioctls (hwc_ioctls_t *ioctls, char correct) |
| int | do_hwc_init (void) |
| void | hwc_interrupt_handler (struct pt_regs *regs, __u16 code) |
| int | hwc_init (unsigned long *kmem_start) |
| signed int | hwc_register_calls (hwc_high_level_calls_t *calls) |
| signed int | hwc_unregister_calls (hwc_high_level_calls_t *calls) |
| void | hwc_do_interrupt (u32 ext_int_param) |
| void | hwc_unblank (void) |
| int | hwc_ioctl (unsigned int cmd, unsigned long arg) |
Variables | |
| static unsigned char | _obuf [MAX_HWCB_ROOM] |
| 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 flags | |
| hwc_high_level_calls_t * calls | |
| spinlock_t lock | |
| timer_list write_timer | |
| timer_list poll_timer | |
| } | hwc_data |
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Definition at line 78 of file hwc_rw.c. Referenced by add_mto(), hwc_chars_in_buffer(), hwc_unblank(), release_write_hwcb(), reuse_write_hwcb(), and sane_write_hwcb(). |
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Definition at line 77 of file hwc_rw.c. Referenced by add_mto(), release_write_hwcb(), reuse_write_hwcb(), and sane_write_hwcb(). |
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Definition at line 75 of file hwc_rw.c. Referenced by add_mto(), allocate_write_hwcb(), do_put_line(), hwc_init(), hwc_write_room(), prepare_write_hwcb(), reuse_write_hwcb(), sane_write_hwcb(), set_alarm(), and write_event_data_2(). |
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Definition at line 94 of file hwc_rw.c. Referenced by add_mto(), prepare_write_hwcb(), reuse_write_hwcb(), and sane_write_hwcb(). |
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Definition at line 106 of file hwc_rw.c. Referenced by allocate_write_hwcb(), release_write_hwcb(), and reuse_write_hwcb(). |
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Definition at line 96 of file hwc_rw.c. Referenced by add_mto(), prepare_write_hwcb(), reuse_write_hwcb(), and sane_write_hwcb(). |
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Definition at line 108 of file hwc_rw.c. Referenced by allocate_write_hwcb(), release_write_hwcb(), and reuse_write_hwcb(). |
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Definition at line 98 of file hwc_rw.c. Referenced by allocate_write_hwcb(), and reuse_write_hwcb(). |
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Definition at line 114 of file hwc_rw.c. Referenced by allocate_write_hwcb(), release_write_hwcb(), and reuse_write_hwcb(). |
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Definition at line 44 of file hwc_rw.c. Referenced by hwc_init(). |
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Definition at line 238 of file hwc_rw.c. Referenced by allocate_write_hwcb(), eval_hwc_receive_mask(), eval_hwc_send_mask(), eval_statechangebuf(), find_gds_vector(), hwc_do_interrupt(), hwc_init(), hwc_interrupt_handler(), process_evbufs(), release_write_hwcb(), reuse_write_hwcb(), sane_write_hwcb(), and write_event_data_2(). |
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Definition at line 36 of file hwc_rw.c. Referenced by do_hwc_write(). |
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Definition at line 134 of file hwc_rw.c. Referenced by do_hwc_init(), and hwc_interrupt_handler(). |
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Definition at line 38 of file hwc_rw.c. Referenced by get_input(). |
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Definition at line 132 of file hwc_rw.c. Referenced by flush_hwcbs(), hwc_flush_buffer(), and write_event_data_2(). |
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Definition at line 133 of file hwc_rw.c. Referenced by do_hwc_init(), and hwc_interrupt_handler(). |
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Definition at line 135 of file hwc_rw.c. Referenced by do_hwc_init(), and hwc_interrupt_handler(). |
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Definition at line 136 of file hwc_rw.c. Referenced by hwc_do_interrupt(), and start_poll_hwc(). |
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Definition at line 40 of file hwc_rw.c. Referenced by allocate_write_hwcb(), do_hwc_init(), eval_hwc_receive_mask(), eval_hwc_send_mask(), eval_statechangebuf(), find_gds_vector(), hwc_do_interrupt(), hwc_init(), hwc_interrupt_handler(), process_evbufs(), release_write_hwcb(), reuse_write_hwcb(), sane_write_hwcb(), unconditional_read_2(), and write_event_data_2(). |
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Definition at line 131 of file hwc_rw.c. Referenced by do_hwc_write(), and put_line(). |
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Definition at line 239 of file hwc_rw.c. Referenced by do_hwc_write(), find_gds_vector(), get_input(), hwc_printk(), hwc_write(), and unconditional_read_2(). |
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Definition at line 71 of file hwc_rw.c. Referenced by add_mto(), hwc_init(), and hwc_write_room(). |
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Definition at line 129 of file hwc_rw.c. Referenced by allocate_write_hwcb(), and set_hwc_ioctls(). |
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Definition at line 73 of file hwc_rw.c. Referenced by do_hwc_write(), and set_hwc_ioctls(). |
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Definition at line 76 of file hwc_rw.c. Referenced by allocate_write_hwcb(), do_put_line(), release_write_hwcb(), reuse_write_hwcb(), sane_write_hwcb(), write_event_data_1(), and write_event_data_2(). |
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Definition at line 100 of file hwc_rw.c. Referenced by release_write_hwcb(), and write_event_data_2(). |
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Definition at line 102 of file hwc_rw.c. Referenced by release_write_hwcb(), and write_event_data_1(). |
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Definition at line 104 of file hwc_rw.c. Referenced by release_write_hwcb(), and reuse_write_hwcb(). |
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Definition at line 616 of file hwc_rw.c. References ALL_HWCB_CHAR, ALL_HWCB_MTO, BUF_HWCB, BUF_HWCB_CHAR, BUF_HWCB_MTO, dest, ENOMEM, long, MAX_HWCB_ROOM, memcpy, and mto_template. Referenced by do_put_line(). |
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Definition at line 517 of file hwc_rw.c. References BUF_HWCB, BUF_HWCB_CHAR_LOST, BUF_HWCB_MTO_LOST, BUF_HWCB_NEXT, BUF_HWCB_TIMES_LOST, DELAYED_WRITE, ENOMEM, find_first_zero_bit, HWC_RW_PRINT_HEADER, internal_print(), MAX_KMEM_PAGES, OUT_HWCB, page, page_nr, prepare_write_hwcb(), and set_bit. Referenced by do_put_line(), and set_alarm(). Here is the call graph for this function:  |
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Definition at line 1968 of file hwc_rw.c. References cr0, EBUSY, EIO, HWC_BROKEN, HWC_INIT, HWC_INTERRUPT, HWC_RW_PRINT_HEADER, init_hwcb_template, memcpy, printk, and write_event_mask_1(). Referenced by hwc_init(), and hwc_interrupt_handler(). Here is the call graph for this function:  |
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Definition at line 943 of file hwc_rw.c. References add_timer(), get_user, HWC_ASCEBC, hwc_write_timeout(), HWC_WTIMER_RUNS, HZ, IMMEDIATE_WRITE, init_timer(), isprint, jiffies, long, MAX_MESSAGE_SIZE, MIN, mod_timer(), obuf_count, obuf_cursor, out, put_line(), set_alarm(), and write_event_data_1(). Referenced by get_input(), hwc_printk(), hwc_write(), and internal_print(). Here is the call graph for this function:  |
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Definition at line 669 of file hwc_rw.c. References spin_lock_irqsave, spin_unlock_irqrestore, and write_event_data_1(). Referenced by start_poll_hwc(). Here is the call graph for this function:  |
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Definition at line 865 of file hwc_rw.c. References __asm__(), add_mto(), allocate_write_hwcb(), BUF_HWCB, OUT_HWCB, and reuse_write_hwcb(). Referenced by put_line(). Here is the call graph for this function:  |
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Definition at line 1442 of file hwc_rw.c. References eval_textcmd(), find_gds_vector(), GDS_ID_TextCmd, and long. Referenced by eval_mdsmu(). Here is the call graph for this function:  |
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Definition at line 1484 of file hwc_rw.c. References eval_mdsmu(), find_gds_vector(), GDS_ID_MDSMU, and long. Referenced by process_evbufs(). Here is the call graph for this function:  |
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Definition at line 1502 of file hwc_rw.c. References DELAYED_WRITE, ET_Msg_Mask, ET_PMsgCmd_Mask, HWC_RW_PRINT_HEADER, and internal_print(). Referenced by eval_statechangebuf(), and write_event_mask_2(). Here is the call graph for this function:  |
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Definition at line 1527 of file hwc_rw.c. References DELAYED_WRITE, ET_OpCmd_Mask, ET_PMsgCmd_Mask, ET_StateChange_Mask, HWC_RW_PRINT_HEADER, and internal_print(). Referenced by eval_statechangebuf(), and write_event_mask_2(). Here is the call graph for this function:  |
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Definition at line 1466 of file hwc_rw.c. References eval_cpmsu(), find_gds_vector(), GDS_ID_CPMSU, and long. Referenced by eval_evbuf(). Here is the call graph for this function:  |
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Definition at line 1389 of file hwc_rw.c. References find_gds_subvector(), get_input(), long, and x30. Referenced by eval_textcmd(). Here is the call graph for this function:  |
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Definition at line 1571 of file hwc_rw.c. References __asm__(), DELAYED_WRITE, eval_hwc_receive_mask(), eval_hwc_send_mask(), HWC_RW_PRINT_HEADER, and internal_print(). Referenced by process_evbufs(). Here is the call graph for this function:  |
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Definition at line 1415 of file hwc_rw.c. References eval_selfdeftextmsg(), find_gds_subvector(), GDS_KEY_SelfDefTextMsg, and long. Referenced by eval_cpmsu(). Here is the call graph for this function:  |
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Definition at line 1343 of file hwc_rw.c. References long. Referenced by eval_selfdeftextmsg(), and eval_textcmd(). |
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Definition at line 1298 of file hwc_rw.c. References DELAYED_WRITE, HWC_RW_PRINT_HEADER, IMMEDIATE_WRITE, internal_print(), and long. Referenced by eval_cpmsu(), eval_evbuf(), and eval_mdsmu(). Here is the call graph for this function:  |
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Definition at line 753 of file hwc_rw.c. References HWC_FLUSH, and release_write_hwcb(). Referenced by hwc_flush_buffer(), and write_event_data_2(). Here is the call graph for this function:  |
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Definition at line 1364 of file hwc_rw.c. References do_hwc_write(), EBC_TOLOWER, HWC_EBCASC_STR, IMMEDIATE_WRITE, long, and seperate_cases(). Referenced by eval_selfdeftextmsg(). Here is the call graph for this function:  |
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Definition at line 1128 of file hwc_rw.c. References ALL_HWCB_CHAR, IN_HWCB, |