From: David van Moolenbroek Date: Fri, 30 Aug 2013 09:14:03 +0000 (+0200) Subject: Retire the synchronous character driver protocol X-Git-Tag: v3.3.0~613 X-Git-Url: http://zhaoyanbai.com/repos/?a=commitdiff_plain;h=refs%2Fchanges%2F45%2F945%2F2;p=minix.git Retire the synchronous character driver protocol - change all sync char drivers into async drivers; - retire support for the sync protocol in libchardev; - remove async dev style, as this is now the default; - remove dev_status from VFS; - clean up now-unused protocol messages. Change-Id: I6aacff712292f6b29f2ccd51bc1e7d7003723e87 --- diff --git a/commands/service/service.c b/commands/service/service.c index 09a4f4c1c..0d504cf79 100644 --- a/commands/service/service.c +++ b/commands/service/service.c @@ -334,10 +334,10 @@ static int parse_arguments(int argc, char **argv, u32_t *rss_flags) } } else if (strcmp(argv[i], ARG_DEVSTYLE)==0) { - char* dev_style_keys[] = { "STYLE_DEV", "STYLE_DEVA", "STYLE_TTY", - "STYLE_CTTY", "STYLE_CLONE", "STYLE_CLONE_A", NULL }; - int dev_style_values[] = { STYLE_DEV, STYLE_DEVA, STYLE_TTY, - STYLE_CTTY, STYLE_CLONE, STYLE_CLONE_A }; + char* dev_style_keys[] = { "STYLE_DEV", "STYLE_TTY", + "STYLE_CTTY", "STYLE_CLONE", NULL }; + int dev_style_values[] = { STYLE_DEV, STYLE_TTY, + STYLE_CTTY, STYLE_CLONE }; for(j=0;dev_style_keys[j]!=NULL;j++) { if(!strcmp(dev_style_keys[j], argv[i+1])) { break; diff --git a/drivers/bmp085/bmp085.c b/drivers/bmp085/bmp085.c index a7dddb244..bbc46b49d 100644 --- a/drivers/bmp085/bmp085.c +++ b/drivers/bmp085/bmp085.c @@ -624,7 +624,7 @@ main(int argc, char *argv[]) sef_local_startup(); - chardriver_task(&bmp085_tab, CHARDRIVER_SYNC); + chardriver_task(&bmp085_tab); return 0; } diff --git a/drivers/fb/fb.c b/drivers/fb/fb.c index 52c08fce7..07038006b 100644 --- a/drivers/fb/fb.c +++ b/drivers/fb/fb.c @@ -382,7 +382,7 @@ main(int argc, char *argv[]) fb_edid_args_parse(); sef_local_startup(); - chardriver_task(&fb_tab, CHARDRIVER_SYNC); + chardriver_task(&fb_tab); return OK; } diff --git a/drivers/hello/hello.c b/drivers/hello/hello.c index 0dd6a27e4..fb1b4acf0 100644 --- a/drivers/hello/hello.c +++ b/drivers/hello/hello.c @@ -181,7 +181,7 @@ int main(void) /* * Run the main loop. */ - chardriver_task(&hello_tab, CHARDRIVER_SYNC); + chardriver_task(&hello_tab); return OK; } diff --git a/drivers/i2c/i2c.c b/drivers/i2c/i2c.c index 7f5c34cd5..f82e60027 100644 --- a/drivers/i2c/i2c.c +++ b/drivers/i2c/i2c.c @@ -553,7 +553,7 @@ main(int argc, char *argv[]) memset(i2cdev, '\0', sizeof(i2cdev)); sef_local_startup(); - chardriver_task(&i2c_tab, CHARDRIVER_SYNC); + chardriver_task(&i2c_tab); return OK; } diff --git a/drivers/log/log.c b/drivers/log/log.c index 756d59088..7c6cbf228 100644 --- a/drivers/log/log.c +++ b/drivers/log/log.c @@ -29,7 +29,6 @@ static int log_transfer(endpoint_t endpt, int opcode, u64_t position, static int log_do_open(message *m_ptr); static int log_cancel(message *m_ptr); static int log_select(message *m_ptr); -static int log_other(message *m_ptr); static int subread(struct logdevice *log, int count, endpoint_t endpt, cp_grant_id_t grant, size_t); @@ -44,7 +43,7 @@ static struct chardriver log_dtab = { nop_alarm, /* no alarm */ log_cancel, /* CANCEL request */ log_select, /* DEV_SELECT request */ - log_other /* Unrecognized messages */ + NULL /* Unrecognized messages */ }; /* SEF functions and variables. */ @@ -64,7 +63,7 @@ int main(void) sef_local_startup(); /* Call the generic receive loop. */ - chardriver_task(&log_dtab, CHARDRIVER_ASYNC); + chardriver_task(&log_dtab); return(OK); } @@ -370,48 +369,25 @@ static int log_do_open(message *m_ptr) static int log_cancel(message *m_ptr) { int d; - d = m_ptr->TTY_LINE; + d = m_ptr->DEVICE; if(d < 0 || d >= NR_DEVS) return EINVAL; + if (m_ptr->USER_ENDPT != logdevices[d].log_proc_nr) + return EDONTREPLY; + if ((cp_grant_id_t) m_ptr->IO_GRANT != logdevices[d].log_user_grant) + return EDONTREPLY; logdevices[d].log_proc_nr = NONE; logdevices[d].log_revive_alerted = 0; return(OK); } -/*============================================================================* - * log_other * - *============================================================================*/ -static int log_other(message *m_ptr) -{ - int r; - - /* This function gets messages that the generic driver doesn't - * understand. - */ - if (is_notify(m_ptr->m_type)) { - return EINVAL; - } - - switch(m_ptr->m_type) { - case DEV_STATUS: { - printf("log_other: unexpected DEV_STATUS request\n"); - r = EDONTREPLY; - break; - } - default: - r = EINVAL; - break; - } - return r; -} - /*============================================================================* * log_select * *============================================================================*/ static int log_select(message *m_ptr) { int d, ready_ops = 0, ops = 0; - d = m_ptr->TTY_LINE; + d = m_ptr->DEV_MINOR; if(d < 0 || d >= NR_DEVS) { #if LOG_DEBUG printf("line %d? EINVAL\n", d); @@ -419,10 +395,10 @@ static int log_select(message *m_ptr) return EINVAL; } - ops = m_ptr->USER_ENDPT & (SEL_RD|SEL_WR|SEL_ERR); + ops = m_ptr->DEV_SEL_OPS & (SEL_RD|SEL_WR|SEL_ERR); /* Read blocks when there is no log. */ - if((m_ptr->USER_ENDPT & SEL_RD) && logdevices[d].log_size > 0) { + if((m_ptr->DEV_SEL_OPS & SEL_RD) && logdevices[d].log_size > 0) { #if LOG_DEBUG printf("log can read; size %d\n", logdevices[d].log_size); #endif @@ -430,13 +406,13 @@ static int log_select(message *m_ptr) } /* Write never blocks. */ - if(m_ptr->USER_ENDPT & SEL_WR) ready_ops |= SEL_WR; + if(m_ptr->DEV_SEL_OPS & SEL_WR) ready_ops |= SEL_WR; /* Enable select calback if no operations were * ready to go, but operations were requested, * and notify was enabled. */ - if((m_ptr->USER_ENDPT & SEL_NOTIFY) && ops && !ready_ops) { + if((m_ptr->DEV_SEL_OPS & SEL_NOTIFY) && ops && !ready_ops) { logdevices[d].log_selected |= ops; logdevices[d].log_select_proc = m_ptr->m_source; #if LOG_DEBUG diff --git a/drivers/memory/memory.c b/drivers/memory/memory.c index d42167864..d985b2efb 100644 --- a/drivers/memory/memory.c +++ b/drivers/memory/memory.c @@ -117,8 +117,7 @@ int main(void) if (IS_BDEV_RQ(msg.m_type)) blockdriver_process(&m_bdtab, &msg, ipc_status); else - chardriver_process(&m_cdtab, CHARDRIVER_SYNC, &msg, - ipc_status); + chardriver_process(&m_cdtab, &msg, ipc_status); } return(OK); diff --git a/drivers/printer/liveupdate.c b/drivers/printer/liveupdate.c index 1f3655569..232e4e29c 100644 --- a/drivers/printer/liveupdate.c +++ b/drivers/printer/liveupdate.c @@ -2,7 +2,6 @@ /* State management variables. */ EXTERN int writing; -EXTERN int is_status_msg_expected; /* Custom states definition. */ #define PR_STATE_WRITE_PROTOCOL_FREE (SEF_LU_STATE_CUSTOM_BASE + 0) @@ -24,7 +23,7 @@ int sef_cb_lu_prepare(int state) break; case SEF_LU_STATE_PROTOCOL_FREE: - is_ready = (!writing && !is_status_msg_expected); + is_ready = (!writing); break; /* Custom states. */ @@ -52,15 +51,13 @@ void sef_cb_lu_state_dump(int state) { sef_lu_dprint("printer: live update state = %d\n", state); sef_lu_dprint("printer: writing = %d\n", writing); - sef_lu_dprint("printer: is_status_msg_expected = %d\n", - is_status_msg_expected); sef_lu_dprint("printer: SEF_LU_STATE_WORK_FREE(%d) reached = %d\n", SEF_LU_STATE_WORK_FREE, TRUE); sef_lu_dprint("printer: SEF_LU_STATE_REQUEST_FREE(%d) reached = %d\n", SEF_LU_STATE_REQUEST_FREE, TRUE); sef_lu_dprint("printer: SEF_LU_STATE_PROTOCOL_FREE(%d) reached = %d\n", - SEF_LU_STATE_PROTOCOL_FREE, (!writing && !is_status_msg_expected)); + SEF_LU_STATE_PROTOCOL_FREE, (!writing)); sef_lu_dprint("printer: PR_STATE_WRITE_PROTOCOL_FREE(%d) reached = %d\n", PR_STATE_WRITE_PROTOCOL_FREE, (!writing)); } diff --git a/drivers/printer/printer.c b/drivers/printer/printer.c index a0059f91b..bccc6af48 100644 --- a/drivers/printer/printer.c +++ b/drivers/printer/printer.c @@ -14,15 +14,13 @@ * DEV_WRITE: a process wants to write on a terminal * CANCEL: terminate a previous incomplete system call immediately * - * m_type TTY_LINE USER_ENDPT COUNT ADDRESS + * m_type DEVICE USER_ENDPT COUNT ADDRESS * |-------------+---------+---------+---------+---------| * | DEV_OPEN | | | | | * |-------------+---------+---------+---------+---------| * | DEV_CLOSE | | proc nr | | | - * ------------------------------------------------------- - * | HARD_INT | | | | | * |-------------+---------+---------+---------+---------| - * | SYS_EVENT | | | | | + * | HARD_INT | | | | | * |-------------+---------+---------+---------+---------| * | DEV_WRITE |minor dev| proc nr | count | buf ptr | * |-------------+---------+---------+---------+---------| @@ -87,8 +85,6 @@ */ static endpoint_t caller; /* process to tell when printing done (FS) */ -static int revive_pending; /* set to true if revive is pending */ -static int revive_status; /* revive status */ static int done_status; /* status of last output completion */ static int oleft; /* bytes of output left in obuf */ static unsigned char obuf[128]; /* output buffer */ @@ -105,11 +101,11 @@ static int irq_hook_id; /* id of irq hook at kernel */ static void do_cancel(message *m_ptr); static void output_done(void); static void do_write(message *m_ptr); -static void do_status(message *m_ptr); static void prepare_output(void); static int do_probe(void); static void do_initialize(void); -static void reply(int code,int replyee,int proc,int status); +static void reply(int code, endpoint_t replyee, endpoint_t proc, + cp_grant_id_t grant, int status); static void do_printer_output(void); /* SEF functions and variables. */ @@ -118,7 +114,6 @@ static int sef_cb_init_fresh(int type, sef_init_info_t *info); EXTERN int sef_cb_lu_prepare(int state); EXTERN int sef_cb_lu_state_isvalid(int state); EXTERN void sef_cb_lu_state_dump(int state); -int is_status_msg_expected = FALSE; /*===========================================================================* * printer_task * @@ -142,26 +137,25 @@ int main(void) case HARDWARE: do_printer_output(); break; - default: - reply(TASK_REPLY, pr_mess.m_source, - pr_mess.USER_ENDPT, EINVAL); } continue; } switch(pr_mess.m_type) { case DEV_OPEN: - do_initialize(); /* initialize */ - /* fall through */ + do_initialize(); /* initialize */ + reply(DEV_OPEN_REPL, pr_mess.m_source, pr_mess.USER_ENDPT, + (cp_grant_id_t) pr_mess.IO_GRANT, OK); + break; case DEV_CLOSE: - reply(TASK_REPLY, pr_mess.m_source, pr_mess.USER_ENDPT, OK); + reply(DEV_CLOSE_REPL, pr_mess.m_source, pr_mess.USER_ENDPT, + (cp_grant_id_t) pr_mess.IO_GRANT, OK); break; case DEV_WRITE_S: do_write(&pr_mess); break; - case DEV_STATUS: do_status(&pr_mess); break; case CANCEL: do_cancel(&pr_mess); break; default: - reply(TASK_REPLY, pr_mess.m_source, pr_mess.USER_ENDPT, - EINVAL); + reply(DEV_REVIVE, pr_mess.m_source, pr_mess.USER_ENDPT, + (cp_grant_id_t) pr_mess.IO_GRANT, EINVAL); } } } @@ -213,7 +207,7 @@ register message *m_ptr; /* pointer to the newly arrived message */ { /* The printer is used by sending DEV_WRITE messages to it. Process one. */ - register int r = SUSPEND; + int r = OK; int retries; u32_t status; @@ -224,13 +218,10 @@ register message *m_ptr; /* pointer to the newly arrived message */ else if (m_ptr->COUNT <= 0) r = EINVAL; else if (m_ptr->FLAGS & FLG_OP_NONBLOCK) r = EAGAIN; /* not supported */ - /* Reply to FS, no matter what happened, possible SUSPEND caller. */ - reply(TASK_REPLY, m_ptr->m_source, m_ptr->USER_ENDPT, r); - - /* If no errors occurred, continue printing with SUSPENDED caller. + /* If no errors occurred, continue printing with the caller. * First wait until the printer is online to prevent stupid errors. */ - if (SUSPEND == r) { + if (r == OK) { caller = m_ptr->m_source; proc_nr = m_ptr->USER_ENDPT; user_left = m_ptr->COUNT; @@ -255,6 +246,9 @@ register message *m_ptr; /* pointer to the newly arrived message */ /* If we reach this point, the printer was not online in time. */ done_status = status; output_done(); + } else { + reply(DEV_REVIVE, m_ptr->m_source, m_ptr->USER_ENDPT, + (cp_grant_id_t) m_ptr->IO_GRANT, r); } } @@ -267,6 +261,7 @@ static void output_done() * Otherwise, reply to caller (FS). */ register int status; + message m; if (!writing) return; /* probably leftover interrupt */ if (done_status != OK) { /* printer error occurred */ @@ -292,32 +287,15 @@ static void output_done() else { /* done! report back to FS */ status = orig_count; } - is_status_msg_expected = TRUE; - revive_pending = TRUE; - revive_status = status; - notify(caller); -} -/*===========================================================================* - * do_status * - *===========================================================================*/ -static void do_status(m_ptr) -register message *m_ptr; /* pointer to the newly arrived message */ -{ - if (revive_pending) { - m_ptr->m_type = DEV_REVIVE; /* build message */ - m_ptr->REP_ENDPT = proc_nr; - m_ptr->REP_STATUS = revive_status; - m_ptr->REP_IO_GRANT = grant_nr; - - writing = FALSE; /* unmark event */ - revive_pending = FALSE; /* unmark event */ - } else { - m_ptr->m_type = DEV_NO_STATUS; - - is_status_msg_expected = FALSE; - } - send(m_ptr->m_source, m_ptr); /* send the message */ + memset(&m, 0, sizeof(m)); + m.m_type = DEV_REVIVE; /* build message */ + m.REP_ENDPT = proc_nr; + m.REP_STATUS = status; + m.REP_IO_GRANT = grant_nr; + send(caller, &m); + + writing = FALSE; /* unmark event */ } /*===========================================================================* @@ -332,30 +310,32 @@ register message *m_ptr; /* pointer to the newly arrived message */ * but rely on FS to handle the EINTR reply and de-suspension properly. */ - if (writing && m_ptr->USER_ENDPT == proc_nr) { + if (writing && m_ptr->USER_ENDPT == proc_nr && + (cp_grant_id_t) m_ptr->IO_GRANT == grant_nr) { oleft = 0; /* cancel output by interrupt handler */ writing = FALSE; - revive_pending = FALSE; + reply(DEV_REVIVE, m_ptr->m_source, proc_nr, grant_nr, EINTR); } - reply(TASK_REPLY, m_ptr->m_source, m_ptr->USER_ENDPT, EINTR); } /*===========================================================================* * reply * *===========================================================================*/ -static void reply(code, replyee, process, status) -int code; /* TASK_REPLY or REVIVE */ -int replyee; /* destination for message (normally FS) */ -int process; /* which user requested the printing */ +static void reply(code, replyee, process, grant, status) +int code; /* DEV_OPEN_REPL, DEV_CLOSE_REPL, DEV_REVIVE */ +endpoint_t replyee; /* destination for message (normally FS) */ +endpoint_t process; /* which user requested the printing */ +cp_grant_id_t grant; /* which grant was involved */ int status; /* number of chars printed or error code */ { /* Send a reply telling FS that printing has started or stopped. */ message pr_mess; - pr_mess.m_type = code; /* TASK_REPLY or REVIVE */ + pr_mess.m_type = code; /* reply code */ pr_mess.REP_STATUS = status; /* count or EIO */ - pr_mess.REP_ENDPT = process; /* which user does this pertain to */ + pr_mess.REP_ENDPT = process; /* which user does this pertain to */ + pr_mess.REP_IO_GRANT = grant; /* the grant */ send(replyee, &pr_mess); /* send the message */ } diff --git a/drivers/random/main.c b/drivers/random/main.c index 4202648f6..fb152b498 100644 --- a/drivers/random/main.c +++ b/drivers/random/main.c @@ -59,7 +59,7 @@ int main(void) sef_local_startup(); /* Call the generic receive loop. */ - chardriver_task(&r_dtab, CHARDRIVER_ASYNC); + chardriver_task(&r_dtab); return(OK); } diff --git a/drivers/sht21/sht21.c b/drivers/sht21/sht21.c index 4f96f6bfa..78cf3971f 100644 --- a/drivers/sht21/sht21.c +++ b/drivers/sht21/sht21.c @@ -527,7 +527,7 @@ main(int argc, char *argv[]) sef_local_startup(); - chardriver_task(&sht21_tab, CHARDRIVER_SYNC); + chardriver_task(&sht21_tab); return 0; } diff --git a/drivers/tps65217/tps65217.c b/drivers/tps65217/tps65217.c index eac833ae3..87d1046d5 100644 --- a/drivers/tps65217/tps65217.c +++ b/drivers/tps65217/tps65217.c @@ -356,7 +356,6 @@ int main(int argc, char *argv[]) { int r; - endpoint_t user, caller; message m; int ipc_status; @@ -407,26 +406,8 @@ main(int argc, char *argv[]) continue; } - caller = m.m_source; - user = m.USER_ENDPT; - - /* - * Handle Message - * - * So far this driver only deals with notifications - * so it always replies to non-notifications with EINVAL. - */ - - /* Send Reply */ - m.m_type = TASK_REPLY; - m.REP_ENDPT = user; - m.REP_STATUS = EINVAL; - - r = sendnb(caller, &m); - if (r != OK) { - log_warn(&log, "sendnb() failed\n"); - continue; - } + log_warn(&log, "Ignoring message 0x%x from 0x%x\n", m.m_type, + m.m_source); } return 0; diff --git a/drivers/tsl2550/tsl2550.c b/drivers/tsl2550/tsl2550.c index f2ba424d1..8c6f6c794 100644 --- a/drivers/tsl2550/tsl2550.c +++ b/drivers/tsl2550/tsl2550.c @@ -476,7 +476,7 @@ main(int argc, char *argv[]) sef_local_startup(); - chardriver_task(&tsl2550_tab, CHARDRIVER_SYNC); + chardriver_task(&tsl2550_tab); return 0; } diff --git a/drivers/tty/arch/earm/keyboard.c b/drivers/tty/arch/earm/keyboard.c index 3c6c1e570..7ab1ef158 100644 --- a/drivers/tty/arch/earm/keyboard.c +++ b/drivers/tty/arch/earm/keyboard.c @@ -33,12 +33,6 @@ kb_init_once(void) { } -int -kbd_status(message *m) -{ - return 0; -} - int kbd_loadmap(message *m) { diff --git a/drivers/tty/arch/earm/rs232.c b/drivers/tty/arch/earm/rs232.c index 100f9af57..f8b40cefd 100644 --- a/drivers/tty/arch/earm/rs232.c +++ b/drivers/tty/arch/earm/rs232.c @@ -266,27 +266,20 @@ rs_write(register tty_t *tp, int try) tp->tty_outcum += count; if ((tp->tty_outleft -= count) == 0) { /* Output is finished, reply to the writer. */ - if(tp->tty_outrepcode == TTY_REVIVE) { - notify(tp->tty_outcaller); - tp->tty_outrevived = 1; - } else { - tty_reply(tp->tty_outrepcode, tp->tty_outcaller, - tp->tty_outproc, tp->tty_outcum); - tp->tty_outcum = 0; - } + tty_reply(DEV_REVIVE, tp->tty_outcaller, + tp->tty_outproc, tp->tty_outgrant, + tp->tty_outcum); + tp->tty_outcum = 0; + tp->tty_outgrant = GRANT_INVALID; } } if (tp->tty_outleft > 0 && tp->tty_termios.c_ospeed == B0) { /* Oops, the line has hung up. */ - if(tp->tty_outrepcode == TTY_REVIVE) { - notify(tp->tty_outcaller); - tp->tty_outrevived = 1; - } else { - tty_reply(tp->tty_outrepcode, tp->tty_outcaller, - tp->tty_outproc, EIO); - tp->tty_outleft = tp->tty_outcum = 0; - } + tty_reply(DEV_REVIVE, tp->tty_outcaller, tp->tty_outproc, + tp->tty_outgrant, EIO); + tp->tty_outleft = tp->tty_outcum = 0; + tp->tty_outgrant = GRANT_INVALID; } return 1; diff --git a/drivers/tty/arch/i386/console.c b/drivers/tty/arch/i386/console.c index b18b853f4..16652bf30 100644 --- a/drivers/tty/arch/i386/console.c +++ b/drivers/tty/arch/i386/console.c @@ -215,14 +215,10 @@ int try; /* Reply to the writer if all output is finished or if an error occured. */ if (tp->tty_outleft == 0 || result != OK) { - if(tp->tty_outrepcode == TTY_REVIVE) { - notify(tp->tty_outcaller); - tp->tty_outrevived = 1; - } else { - tty_reply(tp->tty_outrepcode, tp->tty_outcaller, - tp->tty_outproc, tp->tty_outcum); - tp->tty_outcum = 0; - } + tty_reply(DEV_REVIVE, tp->tty_outcaller, tp->tty_outproc, + tp->tty_outgrant, result != OK ? result : tp->tty_outcum); + tp->tty_outcum = tp->tty_outleft = 0; + tp->tty_outgrant = GRANT_INVALID; } return 0; @@ -825,14 +821,16 @@ void do_video(message *m) case DEV_OPEN: /* Should grant IOPL */ disable_console(); - r= OK; - break; + tty_reply(DEV_OPEN_REPL, m->m_source, m->USER_ENDPT, + (cp_grant_id_t) m->IO_GRANT, OK); + return; case DEV_CLOSE: reenable_console(); - r= OK; - break; + tty_reply(DEV_CLOSE_REPL, m->m_source, m->USER_ENDPT, + (cp_grant_id_t) m->IO_GRANT, OK); + return; case DEV_IOCTL_S: - switch(m->TTY_REQUEST) { + switch(m->REQUEST) { case TIOCMAPMEM: case TIOCUNMAPMEM: { int r, do_map; @@ -847,9 +845,7 @@ void do_video(message *m) if (r != OK) { printf("tty: sys_safecopyfrom failed\n"); - tty_reply(TASK_REPLY, m->m_source, - m->USER_ENDPT, r); - return; + break; } /* In safe ioctl mode, the POSITION field contains @@ -870,20 +866,22 @@ void do_video(message *m) r = vm_unmap_phys(m->POSITION, mapreqvm.vaddr, mapreqvm.size); } - tty_reply(TASK_REPLY, m->m_source, m->USER_ENDPT, r); - return; - } + break; + } + default: + r= ENOTTY; + break; } - r= ENOTTY; break; - default: + default: printf( "Warning, TTY(video) got unexpected request %d from %d\n", m->m_type, m->m_source); r= EINVAL; } - tty_reply(TASK_REPLY, m->m_source, m->USER_ENDPT, r); + tty_reply(DEV_REVIVE, m->m_source, m->USER_ENDPT, + (cp_grant_id_t) m->IO_GRANT, r); } diff --git a/drivers/tty/arch/i386/keyboard.c b/drivers/tty/arch/i386/keyboard.c index 20d0dfc1d..6a737fa34 100644 --- a/drivers/tty/arch/i386/keyboard.c +++ b/drivers/tty/arch/i386/keyboard.c @@ -19,6 +19,7 @@ #include #include #include +#include #include "tty.h" #include "kernel/const.h" #include "kernel/config.h" @@ -134,6 +135,7 @@ static struct kbd int incaller; int select_ops; int select_proc; + int select_minor; /* sanity check only, can be removed */ } kbd, kbdaux; /* Data that is to be sent to the keyboard. Each byte is ACKed by the @@ -154,7 +156,6 @@ static long debug_fkeys = 1; static timer_t tmr_kbd_wd; static void handle_req(struct kbd *kbdp, message *m); -static int handle_status(struct kbd *kbdp, message *m); static void kbc_cmd0(int cmd); static void kbc_cmd1(int cmd, int data); static int kbc_read(void); @@ -186,20 +187,6 @@ void do_kbd(message *m) } -/*===========================================================================* - * kbd_status * - *===========================================================================*/ -int kbd_status(message *m) -{ - int r; - - r= handle_status(&kbd, m); - if (r) - return r; - return handle_status(&kbdaux, m); -} - - /*===========================================================================* * do_kbdaux * *===========================================================================*/ @@ -224,8 +211,9 @@ message *m; switch (m->m_type) { case DEV_OPEN: kbdp->nr_open++; - r= OK; - break; + tty_reply(DEV_OPEN_REPL, m->m_source, m->USER_ENDPT, + (cp_grant_id_t) m->IO_GRANT, OK); + return; case DEV_CLOSE: kbdp->nr_open--; if (kbdp->nr_open < 0) @@ -235,8 +223,9 @@ message *m; } if (kbdp->nr_open == 0) kbdp->avail= 0; - r= OK; - break; + tty_reply(DEV_CLOSE_REPL, m->m_source, m->USER_ENDPT, + (cp_grant_id_t) m->IO_GRANT, OK); + return; case DEV_READ_S: if (kbdp->req_size) { @@ -256,8 +245,7 @@ message *m; kbdp->req_grant= (cp_grant_id_t) m->IO_GRANT; kbdp->req_addr_offset= 0; kbdp->incaller= m->m_source; - r= SUSPEND; - break; + return; } /* Handle read request */ @@ -306,11 +294,11 @@ message *m; case CANCEL: kbdp->req_size= 0; - r= OK; + r= EAGAIN; break; case DEV_SELECT: - ops = m->USER_ENDPT & (SEL_RD|SEL_WR|SEL_ERR); - watch = (m->USER_ENDPT & SEL_NOTIFY) ? 1 : 0; + ops = m->DEV_SEL_OPS & (SEL_RD|SEL_WR|SEL_ERR); + watch = (m->DEV_SEL_OPS & SEL_NOTIFY) ? 1 : 0; r= 0; if (kbdp->avail && (ops & SEL_RD)) @@ -323,10 +311,13 @@ message *m; { kbdp->select_ops |= ops; kbdp->select_proc= m->m_source; + kbdp->select_minor= m->DEV_MINOR; } - break; + assert(kbdp->minor == m->DEV_MINOR); + select_reply(DEV_SEL_REPL1, m->m_source, m->DEV_MINOR, r); + return; case DEV_IOCTL_S: - if (kbdp == &kbd && m->TTY_REQUEST == KIOCSLEDS) + if (kbdp == &kbd && m->REQUEST == KIOCSLEDS) { kio_leds_t leds; unsigned char b; @@ -362,7 +353,7 @@ message *m; r= OK; break; } - if (kbdp == &kbd && m->TTY_REQUEST == KIOCBELL) + if (kbdp == &kbd && m->REQUEST == KIOCBELL) { kio_bell_t bell; clock_t ticks; @@ -390,59 +381,8 @@ message *m; m->m_type, m->m_source); r= EINVAL; } - tty_reply(TASK_REPLY, m->m_source, m->USER_ENDPT, r); -} - - -/*===========================================================================* - * handle_status * - *===========================================================================*/ -static int handle_status(kbdp, m) -struct kbd *kbdp; -message *m; -{ - int n, r; - - if (kbdp->avail && kbdp->req_size && m->m_source == kbdp->incaller && - kbdp->req_grant != GRANT_INVALID) - { - /* Handle read request */ - n= kbdp->avail; - if (n > kbdp->req_size) - n= kbdp->req_size; - if (kbdp->offset + n > KBD_BUFSZ) - n= KBD_BUFSZ-kbdp->offset; - if (n <= 0) - panic("kbd_status: bad n: %d", n); - kbdp->req_size= 0; - r= sys_safecopyto(kbdp->incaller, kbdp->req_grant, 0, - (vir_bytes)&kbdp->buf[kbdp->offset], n); - if (r == OK) - { - kbdp->offset= (kbdp->offset+n) % KBD_BUFSZ; - kbdp->avail -= n; - r= n; - } else printf("copy in revive kbd failed: %d\n", r); - - m->m_type = DEV_REVIVE; - m->REP_ENDPT= kbdp->req_proc; - m->REP_IO_GRANT= kbdp->req_grant; - m->REP_STATUS= r; - kbdp->req_grant = GRANT_INVALID; - return 1; - } - if (kbdp->avail && (kbdp->select_ops & SEL_RD) && - m->m_source == kbdp->select_proc) - { - m->m_type = DEV_IO_READY; - m->DEV_MINOR = kbdp->minor; - m->DEV_SEL_OPS = SEL_RD; - - kbdp->select_ops &= ~SEL_RD; - return 1; - } - - return 0; + tty_reply(DEV_REVIVE, m->m_source, m->USER_ENDPT, + (cp_grant_id_t) m->IO_GRANT, r); } @@ -490,7 +430,7 @@ int scode; void kbd_interrupt(message *UNUSED(m_ptr)) { /* A keyboard interrupt has occurred. Process it. */ - int o, isaux; + int n, r, o, isaux; unsigned char scode; struct kbd *kbdp; @@ -516,15 +456,40 @@ void kbd_interrupt(message *UNUSED(m_ptr)) #endif return; /* Buffer is full */ } - o= (kbdp->offset + kbdp->avail) % KBD_BUFSZ; - kbdp->buf[o]= scode; - kbdp->avail++; - if (kbdp->req_size) { - notify(kbdp->incaller); - } - if (kbdp->select_ops & SEL_RD) - notify(kbdp->select_proc); - return; + o= (kbdp->offset + kbdp->avail) % KBD_BUFSZ; + kbdp->buf[o]= scode; + kbdp->avail++; + if (kbdp->req_size) { + /* Reply to read request */ + n= kbdp->avail; + if (n > kbdp->req_size) + n= kbdp->req_size; + if (kbdp->offset + n > KBD_BUFSZ) + n= KBD_BUFSZ-kbdp->offset; + if (n <= 0) + panic("kbd_interrupt: bad n: %d", n); + kbdp->req_size= 0; + r= sys_safecopyto(kbdp->incaller, kbdp->req_grant, 0, + (vir_bytes)&kbdp->buf[kbdp->offset], n); + if (r == OK) + { + kbdp->offset= (kbdp->offset+n) % KBD_BUFSZ; + kbdp->avail -= n; + r= n; + } else printf("copy in revive kbd failed: %d\n", r); + + tty_reply(DEV_REVIVE, kbdp->incaller, kbdp->req_proc, + kbdp->req_grant, r); + kbdp->req_grant = GRANT_INVALID; + } + /* Only satisfy pending select if characters weren't just read. */ + if (kbdp->avail && (kbdp->select_ops & SEL_RD)) { + assert(kbdp->select_minor == kbdp->minor); + select_reply(DEV_SEL_REPL2, kbdp->select_proc, kbdp->minor, + SEL_RD); + kbdp->select_ops &= ~SEL_RD; + } + return; } /* Store the scancode in memory so the task can get at it later. */ diff --git a/drivers/tty/arch/i386/rs232.c b/drivers/tty/arch/i386/rs232.c index d7b2472dd..21821627d 100644 --- a/drivers/tty/arch/i386/rs232.c +++ b/drivers/tty/arch/i386/rs232.c @@ -269,26 +269,18 @@ static int rs_write(register tty_t *tp, int try) tp->tty_outcum += count; if ((tp->tty_outleft -= count) == 0) { /* Output is finished, reply to the writer. */ - if(tp->tty_outrepcode == TTY_REVIVE) { - notify(tp->tty_outcaller); - tp->tty_outrevived = 1; - } else { - tty_reply(tp->tty_outrepcode, tp->tty_outcaller, - tp->tty_outproc, tp->tty_outcum); - tp->tty_outcum = 0; - } + tty_reply(DEV_REVIVE, tp->tty_outcaller, tp->tty_outproc, + tp->tty_outgrant, tp->tty_outcum); + tp->tty_outcum = 0; + tp->tty_outgrant = GRANT_INVALID; } } if (tp->tty_outleft > 0 && tp->tty_termios.c_ospeed == B0) { /* Oops, the line has hung up. */ - if(tp->tty_outrepcode == TTY_REVIVE) { - notify(tp->tty_outcaller); - tp->tty_outrevived = 1; - } else { - tty_reply(tp->tty_outrepcode, tp->tty_outcaller, - tp->tty_outproc, EIO); - tp->tty_outleft = tp->tty_outcum = 0; - } + tty_reply(DEV_REVIVE, tp->tty_outcaller, tp->tty_outproc, + tp->tty_outgrant, EIO); + tp->tty_outleft = tp->tty_outcum = 0; + tp->tty_outgrant = GRANT_INVALID; } return 1; diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c index f009fa23b..d0989fa92 100644 --- a/drivers/tty/pty.c +++ b/drivers/tty/pty.c @@ -33,7 +33,6 @@ typedef struct pty { char state; /* flags: busy, closed, ... */ /* Read call on /dev/ptypX. */ - char rdsendreply; /* send a reply (instead of notify) */ int rdcaller; /* process making the call (usually FS) */ int rdproc; /* process that wants to read from the pty */ cp_grant_id_t rdgrant; /* grant for readers address space */ @@ -42,7 +41,6 @@ typedef struct pty { int rdcum; /* # bytes written so far */ /* Write call to /dev/ptypX. */ - char wrsendreply; /* send a reply (instead of notify) */ int wrcaller; /* process making the call (usually FS) */ int wrproc; /* process that wants to write to the pty */ cp_grant_id_t wrgrant; /* grant for writers address space */ @@ -56,9 +54,9 @@ typedef struct pty { char obuf[2048]; /* buffer for bytes going to the pty reader */ /* select() data. */ - int select_ops, /* Which operations do we want to know about? */ - select_proc, /* Who wants to know about it? */ - select_ready_ops; /* For callback. */ + int select_ops; /* Which operations do we want to know about? */ + int select_proc; /* Who wants to know about it? */ + dev_t select_minor; /* sanity check only, can be removed */ } pty_t; #define PTY_ACTIVE 0x01 /* pty is open/active */ @@ -75,7 +73,7 @@ static int pty_read(tty_t *tp, int try); static int pty_close(tty_t *tp, int try); static int pty_icancel(tty_t *tp, int try); static int pty_ocancel(tty_t *tp, int try); -static int pty_select(tty_t *tp, message *m); +static void pty_select(tty_t *tp, message *m); /*===========================================================================* * do_pty * @@ -105,7 +103,6 @@ void do_pty(tty_t *tp, message *m_ptr) r = ENOBUFS; break; } - pp->rdsendreply = TRUE; pp->rdcaller = m_ptr->m_source; pp->rdproc = m_ptr->USER_ENDPT; pp->rdgrant = (cp_grant_id_t) m_ptr->IO_GRANT; @@ -123,8 +120,7 @@ void do_pty(tty_t *tp, message *m_ptr) pp->rdleft = pp->rdcum = 0; pp->rdgrant = GRANT_INVALID; } else { - r = SUSPEND; /* do suspend */ - pp->rdsendreply = FALSE; + return; /* do suspend */ } break; @@ -146,7 +142,6 @@ void do_pty(tty_t *tp, message *m_ptr) r = ENOBUFS; break; } - pp->wrsendreply = TRUE; pp->wrcaller = m_ptr->m_source; pp->wrproc = m_ptr->USER_ENDPT; pp->wrgrant = (cp_grant_id_t) m_ptr->IO_GRANT; @@ -164,8 +159,7 @@ void do_pty(tty_t *tp, message *m_ptr) pp->wrgrant = GRANT_INVALID; r = EAGAIN; } else { - pp->wrsendreply = FALSE; /* do suspend */ - r = SUSPEND; + return; /* do suspend */ } break; @@ -174,21 +168,24 @@ void do_pty(tty_t *tp, message *m_ptr) pp->state |= PTY_ACTIVE; pp->rdcum = 0; pp->wrcum = 0; - break; + tty_reply(DEV_OPEN_REPL, m_ptr->m_source, m_ptr->USER_ENDPT, + (cp_grant_id_t) m_ptr->IO_GRANT, r); + return; case DEV_CLOSE: - r = OK; if (pp->state & TTY_CLOSED) { pp->state = 0; } else { pp->state |= PTY_CLOSED; sigchar(tp, SIGHUP, 1); } - break; + tty_reply(DEV_CLOSE_REPL, m_ptr->m_source, m_ptr->USER_ENDPT, + (cp_grant_id_t) m_ptr->IO_GRANT, OK); + return; case DEV_SELECT: - r = pty_select(tp, m_ptr); - break; + pty_select(tp, m_ptr); + return; case CANCEL: r = EINTR; @@ -209,7 +206,8 @@ void do_pty(tty_t *tp, message *m_ptr) default: r = EINVAL; } - tty_reply(TASK_REPLY, m_ptr->m_source, m_ptr->USER_ENDPT, r); + tty_reply(DEV_REVIVE, m_ptr->m_source, m_ptr->USER_ENDPT, + (cp_grant_id_t) m_ptr->IO_GRANT, r); } /*===========================================================================* @@ -228,14 +226,10 @@ static int pty_write(tty_t *tp, int try) if (pp->state & PTY_CLOSED) { if (try) return 1; if (tp->tty_outleft > 0) { - if(tp->tty_outrepcode == TTY_REVIVE) { - notify(tp->tty_outcaller); - tp->tty_outrevived = 1; - } else { - tty_reply(tp->tty_outrepcode, tp->tty_outcaller, - tp->tty_outproc, EIO); - tp->tty_outleft = tp->tty_outcum = 0; - } + tty_reply(DEV_REVIVE, tp->tty_outcaller, tp->tty_outproc, + tp->tty_outgrant, EIO); + tp->tty_outleft = tp->tty_outcum = 0; + tp->tty_outgrant = GRANT_INVALID; } return 0; } @@ -281,14 +275,10 @@ static int pty_write(tty_t *tp, int try) tp->tty_outcum += count; if ((tp->tty_outleft -= count) == 0) { /* Output is finished, reply to the writer. */ - if(tp->tty_outrepcode == TTY_REVIVE) { - notify(tp->tty_outcaller); - tp->tty_outrevived = 1; - } else { - tty_reply(tp->tty_outrepcode, tp->tty_outcaller, - tp->tty_outproc, tp->tty_outcum); - tp->tty_outcum = 0; - } + tty_reply(DEV_REVIVE, tp->tty_outcaller, tp->tty_outproc, + tp->tty_outgrant, tp->tty_outcum); + tp->tty_outcum = 0; + tp->tty_outgrant = GRANT_INVALID; } } pty_finish(pp); @@ -358,12 +348,10 @@ static void pty_finish(pty_t *pp) * transferred. */ if (pp->rdcum > 0) { - if (pp->rdsendreply) { - tty_reply(TASK_REPLY, pp->rdcaller, pp->rdproc, pp->rdcum); - pp->rdleft = pp->rdcum = 0; - } - else - notify(pp->rdcaller); + tty_reply(DEV_REVIVE, pp->rdcaller, pp->rdproc, pp->rdgrant, + pp->rdcum); + pp->rdleft = pp->rdcum = 0; + pp->rdgrant = GRANT_INVALID; } } @@ -382,14 +370,10 @@ static int pty_read(tty_t *tp, int try) if (pp->state & PTY_CLOSED) { if (try) return 1; if (tp->tty_inleft > 0) { - if(tp->tty_inrepcode == TTY_REVIVE) { - notify(tp->tty_incaller); - tp->tty_inrevived = 1; - } else { - tty_reply(tp->tty_inrepcode, tp->tty_incaller, - tp->tty_inproc, tp->tty_incum); - tp->tty_inleft = tp->tty_incum = 0; - } + tty_reply(DEV_REVIVE, tp->tty_incaller, tp->tty_inproc, + tp->tty_ingrant, tp->tty_incum); + tp->tty_inleft = tp->tty_incum = 0; + tp->tty_ingrant = GRANT_INVALID; } return 1; } @@ -417,13 +401,10 @@ static int pty_read(tty_t *tp, int try) /* PTY writer bookkeeping. */ pp->wrcum++; if (--pp->wrleft == 0) { - if (pp->wrsendreply) { - tty_reply(TASK_REPLY, pp->wrcaller, pp->wrproc, - pp->wrcum); - pp->wrcum = 0; - } - else - notify(pp->wrcaller); + tty_reply(DEV_REVIVE, pp->wrcaller, pp->wrproc, pp->wrgrant, + pp->wrcum); + pp->wrcum = 0; + pp->wrgrant = GRANT_INVALID; } } @@ -441,13 +422,17 @@ static int pty_close(tty_t *tp, int UNUSED(try)) if (!(pp->state & PTY_ACTIVE)) return 0; if (pp->rdleft > 0) { - assert(!pp->rdsendreply); - notify(pp->rdcaller); + tty_reply(DEV_REVIVE, pp->rdcaller, pp->rdproc, pp->rdgrant, + pp->rdcum); + pp->rdleft = pp->rdcum = 0; + pp->rdgrant = GRANT_INVALID; } if (pp->wrleft > 0) { - assert(!pp->wrsendreply); - notify(pp->wrcaller); + tty_reply(DEV_REVIVE, pp->wrcaller, pp->wrproc, pp->wrgrant, + pp->wrcum); + pp->wrcum = 0; + pp->wrgrant = GRANT_INVALID; } if (pp->state & PTY_CLOSED) pp->state = 0; else pp->state |= TTY_CLOSED; @@ -464,9 +449,10 @@ static int pty_icancel(tty_t *tp, int UNUSED(try)) pty_t *pp = tp->tty_priv; if (pp->wrleft > 0) { - pp->wrcum += pp->wrleft; - pp->wrleft= 0; - notify(pp->wrcaller); + tty_reply(DEV_REVIVE, pp->wrcaller, pp->wrproc, pp->wrgrant, + pp->wrcum + pp->wrleft); + pp->wrcum = pp->wrleft = 0; + pp->wrgrant = GRANT_INVALID; } return 0; @@ -515,60 +501,6 @@ void pty_init(tty_t *tp) tp->tty_select_ops = 0; } -/*===========================================================================* - * pty_status * - *===========================================================================*/ -int pty_status(message *m_ptr) -{ - int i, event_found; - pty_t *pp; - - event_found = 0; - for (i= 0, pp = pty_table; istate & TTY_CLOSED) && pp->rdleft > 0) || - pp->rdcum > 0) && - pp->rdcaller == m_ptr->m_source) - { - m_ptr->m_type = DEV_REVIVE; - m_ptr->REP_ENDPT = pp->rdproc; - m_ptr->REP_IO_GRANT = pp->rdgrant; - m_ptr->REP_STATUS = pp->rdcum; - pp->rdleft = pp->rdcum = 0; - pp->rdgrant = GRANT_INVALID; - event_found = 1; - break; - } - - if ((((pp->state & TTY_CLOSED) && pp->wrleft > 0) || - pp->wrcum > 0) && - pp->wrcaller == m_ptr->m_source) - { - m_ptr->m_type = DEV_REVIVE; - m_ptr->REP_ENDPT = pp->wrproc; - m_ptr->REP_IO_GRANT = pp->wrgrant; - if (pp->wrcum == 0) - m_ptr->REP_STATUS = EIO; - else - m_ptr->REP_STATUS = pp->wrcum; - - pp->wrleft = pp->wrcum = 0; - pp->wrgrant = GRANT_INVALID; - event_found = 1; - break; - } - - if (pp->select_ready_ops && pp->select_proc == m_ptr->m_source) { - m_ptr->m_type = DEV_IO_READY; - m_ptr->DEV_MINOR = PTYPX_MINOR + i; - m_ptr->DEV_SEL_OPS = pp->select_ready_ops; - pp->select_ready_ops = 0; - event_found = 1; - break; - } - } - return event_found; -} - /*===========================================================================* * select_try_pty * *===========================================================================*/ @@ -600,35 +532,38 @@ static int select_try_pty(tty_t *tp, int ops) void select_retry_pty(tty_t *tp) { pty_t *pp = tp->tty_priv; + dev_t minor; int r; /* See if the pty side of a pty is ready to return a select. */ if (pp->select_ops && (r=select_try_pty(tp, pp->select_ops))) { + minor = PTYPX_MINOR + (int) (pp - pty_table); + assert(minor == pp->select_minor); + select_reply(DEV_SEL_REPL2, pp->select_proc, minor, r); pp->select_ops &= ~r; - pp->select_ready_ops |= r; - notify(pp->select_proc); } } /*===========================================================================* * pty_select * *===========================================================================*/ -static int pty_select(tty_t *tp, message *m) +static void pty_select(tty_t *tp, message *m) { pty_t *pp = tp->tty_priv; int ops, ready_ops = 0, watch; - ops = m->USER_ENDPT & (SEL_RD|SEL_WR|SEL_ERR); - watch = (m->USER_ENDPT & SEL_NOTIFY) ? 1 : 0; + ops = m->DEV_SEL_OPS & (SEL_RD|SEL_WR|SEL_ERR); + watch = (m->DEV_SEL_OPS & SEL_NOTIFY) ? 1 : 0; ready_ops = select_try_pty(tp, ops); if (!ready_ops && ops && watch) { pp->select_ops |= ops; pp->select_proc = m->m_source; + pp->select_minor = m->DEV_MINOR; } - return ready_ops; + select_reply(DEV_SEL_REPL1, m->m_source, m->DEV_MINOR, ready_ops); } #endif /* NR_PTYS > 0 */ diff --git a/drivers/tty/tty.c b/drivers/tty/tty.c index 894571d84..387a2a6e4 100644 --- a/drivers/tty/tty.c +++ b/drivers/tty/tty.c @@ -27,28 +27,25 @@ * DEV_OPEN: a tty line has been opened * DEV_CLOSE: a tty line has been closed * DEV_SELECT: start select notification request - * DEV_STATUS: FS wants to know status for SELECT or REVIVE * CANCEL: terminate a previous incomplete system call immediately * - * m_type TTY_LINE USER_ENDPT COUNT TTY_SPEKS IO_GRANT + * m_type DEVICE USER_ENDPT COUNT POSITION IO_GRANT * ----------------------------------------------------------------- * | HARD_INT | | | | | | * |-------------+---------+---------+---------+---------+---------| - * | SYS_SIG | sig set | | | | | - * |-------------+---------+---------+---------+---------+---------| * | DEV_READ |minor dev| proc nr | count | | grant | * |-------------+---------+---------+---------+---------+---------| * | DEV_WRITE |minor dev| proc nr | count | | grant | * |-------------+---------+---------+---------+---------+---------| - * | DEV_IOCTL |minor dev| proc nr |func code|erase etc| | + * | DEV_IOCTL |minor dev| proc nr |func code|user proc| | * |-------------+---------+---------+---------+---------+---------| * | DEV_OPEN |minor dev| proc nr | O_NOCTTY| | | * |-------------+---------+---------+---------+---------+---------| * | DEV_CLOSE |minor dev| proc nr | | | | * |-------------+---------+---------+---------+---------+---------| - * | DEV_STATUS | | | | | | - * |-------------+---------+---------+---------+---------+---------| * | CANCEL |minor dev| proc nr | | | | + * |-------------+---------+---------+---------+---------+---------| + * | DEV_SELECT |minor dev| sel ops | | | | * ----------------------------------------------------------------- * * Changes: @@ -111,7 +108,6 @@ static void do_close(tty_t *tp, message *m_ptr); static void do_read(tty_t *tp, message *m_ptr); static void do_write(tty_t *tp, message *m_ptr); static void do_select(tty_t *tp, message *m_ptr); -static void do_status(message *m_ptr); static void in_transfer(tty_t *tp); static int tty_echo(tty_t *tp, int ch); static void rawecho(tty_t *tp, int ch); @@ -164,7 +160,7 @@ int main(void) message tty_mess; /* buffer for all incoming messages */ int ipc_status; unsigned line; - int r; + int r, code; register tty_t *tp; /* SEF local startup. */ @@ -231,21 +227,16 @@ int main(void) ; /* do nothing; end switch */ } - /* Only device requests should get to this point. All requests, - * except DEV_STATUS, have a minor device number. Check this - * exception and get the minor device number otherwise. + /* Only device requests should get to this point. + * All requests have a minor device number. */ - if (tty_mess.m_type == DEV_STATUS) { - do_status(&tty_mess); - continue; - } - line = tty_mess.TTY_LINE; + line = tty_mess.DEVICE; if (line == CONS_MINOR || line == LOG_MINOR) { /* /dev/log output goes to /dev/console */ if (consoleline != CONS_MINOR) { /* Console output must redirected */ line = consoleline; - tty_mess.TTY_LINE = line; + tty_mess.DEVICE = line; } } if (line == KBD_MINOR) { @@ -274,10 +265,20 @@ int main(void) /* If the device doesn't exist or is not configured return ENXIO. */ if (tp == NULL || ! tty_active(tp)) { - if (tty_mess.m_source != LOG_PROC_NR) { - tty_reply(TASK_REPLY, tty_mess.m_source, - tty_mess.USER_ENDPT, ENXIO); + if (tty_mess.m_source == LOG_PROC_NR) + continue; + + /* Can all of these occur? Probably not. We're by far most + * likely to see DEV_OPEN, but better safe than sorry.. + */ + switch (tty_mess.m_type) { + case DEV_OPEN: code = DEV_OPEN_REPL; break; + case DEV_CLOSE: code = DEV_CLOSE_REPL; break; + default: code = DEV_REVIVE; break; } + + tty_reply(code, tty_mess.m_source, tty_mess.USER_ENDPT, + (cp_grant_id_t) tty_mess.IO_GRANT, ENXIO); continue; } @@ -293,8 +294,8 @@ int main(void) default: printf("Warning, TTY got unexpected request %d from %d\n", tty_mess.m_type, tty_mess.m_source); - tty_reply(TASK_REPLY, tty_mess.m_source, - tty_mess.USER_ENDPT, EINVAL); + tty_reply(DEV_REVIVE, tty_mess.m_source, tty_mess.USER_ENDPT, + (cp_grant_id_t) tty_mess.IO_GRANT, EINVAL); } } @@ -537,97 +538,6 @@ static void sef_cb_signal_handler(int signo) } } -/*===========================================================================* - * do_status * - *===========================================================================*/ -static void do_status(m_ptr) -message *m_ptr; -{ - register struct tty *tp; - int event_found; - int status; - int ops; - - /* Check for select or revive events on any of the ttys. If we found an, - * event return a single status message for it. The FS will make another - * call to see if there is more. - */ - event_found = 0; - for (tp = FIRST_TTY; tp < END_TTY; tp++) { - if ((ops = select_try(tp, tp->tty_select_ops)) && - tp->tty_select_proc == m_ptr->m_source) { - - /* I/O for a selected minor device is ready. */ - m_ptr->m_type = DEV_IO_READY; - m_ptr->DEV_MINOR = tp->tty_minor; - m_ptr->DEV_SEL_OPS = ops; - - tp->tty_select_ops &= ~ops; /* unmark select event */ - event_found = 1; - break; - } - else if (tp->tty_inrevived && tp->tty_incaller == m_ptr->m_source) { - - /* Suspended request finished. Send a REVIVE. */ - m_ptr->m_type = DEV_REVIVE; - m_ptr->REP_ENDPT = tp->tty_inproc; - m_ptr->REP_IO_GRANT = tp->tty_ingrant; - m_ptr->REP_STATUS = tp->tty_incum; - - tp->tty_inleft = tp->tty_incum = 0; - tp->tty_inrevived = 0; /* unmark revive event */ - tp->tty_ingrant = GRANT_INVALID; - event_found = 1; - break; - } - else if (tp->tty_outrevived && tp->tty_outcaller == m_ptr->m_source) { - - /* Suspended request finished. Send a REVIVE. */ - m_ptr->m_type = DEV_REVIVE; - m_ptr->REP_ENDPT = tp->tty_outproc; - m_ptr->REP_IO_GRANT = tp->tty_outgrant; - m_ptr->REP_STATUS = tp->tty_outcum; - - tp->tty_outcum = 0; - tp->tty_outrevived = 0; /* unmark revive event */ - tp->tty_outgrant = GRANT_INVALID; - event_found = 1; - break; - } - else if (tp->tty_iorevived && tp->tty_iocaller == m_ptr->m_source) { - - /* Suspended request finished. Send a REVIVE. */ - m_ptr->m_type = DEV_REVIVE; - m_ptr->REP_ENDPT = tp->tty_ioproc; - m_ptr->REP_IO_GRANT = tp->tty_iogrant; - m_ptr->REP_STATUS = tp->tty_iostatus; - tp->tty_iorevived = 0; /* unmark revive event */ - tp->tty_iogrant = GRANT_INVALID; - event_found = 1; - break; - } - } - -#if NR_PTYS > 0 - if (!event_found) - event_found = pty_status(m_ptr); -#endif - if (!event_found) - event_found= kbd_status(m_ptr); - - if (! event_found) { - /* No events of interest were found. Return an empty message. */ - m_ptr->m_type = DEV_NO_STATUS; - } - - /* Almost done. Send back the reply message to the caller. */ - status = send(m_ptr->m_source, m_ptr); - if (status != OK) { - printf("tty`do_status: send to %d failed: %d\n", - m_ptr->m_source, status); - } -} - /*===========================================================================* * do_read * *===========================================================================*/ @@ -654,7 +564,6 @@ register message *m_ptr; /* pointer to message sent to the task */ r = ENOBUFS; } else { /* Copy information from the message to the tty struct. */ - tp->tty_inrepcode = TASK_REPLY; tp->tty_incaller = m_ptr->m_source; tp->tty_inproc = m_ptr->USER_ENDPT; tp->tty_ingrant = (cp_grant_id_t) m_ptr->IO_GRANT; @@ -692,14 +601,14 @@ register message *m_ptr; /* pointer to message sent to the task */ if (m_ptr->FLAGS & FLG_OP_NONBLOCK) { tty_icancel(tp); r = tp->tty_incum > 0 ? tp->tty_incum : EAGAIN; - tp->tty_inleft = tp->tty_incum = tp->tty_inrevived = 0; + tp->tty_inleft = tp->tty_incum = 0; tp->tty_ingrant = GRANT_INVALID; } else { - r = SUSPEND; /* suspend the caller */ - tp->tty_inrepcode = TTY_REVIVE; + return; /* suspend the caller */ } } - tty_reply(TASK_REPLY, m_ptr->m_source, m_ptr->USER_ENDPT, r); + tty_reply(DEV_REVIVE, m_ptr->m_source, m_ptr->USER_ENDPT, + (cp_grant_id_t) m_ptr->IO_GRANT, r); if (tp->tty_select_ops) select_retry(tp); } @@ -724,7 +633,6 @@ register message *m_ptr; /* pointer to message sent to the task */ r = EINVAL; } else { /* Copy message parameters to the tty structure. */ - tp->tty_outrepcode = TASK_REPLY; tp->tty_outcaller = m_ptr->m_source; tp->tty_outproc = m_ptr->USER_ENDPT; tp->tty_outgrant = (cp_grant_id_t) m_ptr->IO_GRANT; @@ -739,14 +647,14 @@ register message *m_ptr; /* pointer to message sent to the task */ /* None or not all the bytes could be written. */ if (m_ptr->FLAGS & FLG_OP_NONBLOCK) { r = tp->tty_outcum > 0 ? tp->tty_outcum : EAGAIN; - tp->tty_outleft = tp->tty_outcum = tp->tty_outrevived = 0; + tp->tty_outleft = tp->tty_outcum = 0; tp->tty_outgrant = GRANT_INVALID; } else { - r = SUSPEND; /* suspend the caller */ - tp->tty_outrepcode = TTY_REVIVE; + return; /* suspend the caller */ } } - tty_reply(TASK_REPLY, m_ptr->m_source, m_ptr->USER_ENDPT, r); + tty_reply(DEV_REVIVE, m_ptr->m_source, m_ptr->USER_ENDPT, + (cp_grant_id_t) m_ptr->IO_GRANT, r); } /*===========================================================================* @@ -767,7 +675,7 @@ message *m_ptr; /* pointer to message sent to task */ size_t size; /* Size of the ioctl parameter. */ - switch (m_ptr->TTY_REQUEST) { + switch (m_ptr->REQUEST) { case TCGETS: /* Posix tcgetattr function */ case TCSETS: /* Posix tcsetattr function, TCSANOW option */ case TCSETSW: /* Posix tcsetattr function, TCSADRAIN option */ @@ -801,7 +709,7 @@ message *m_ptr; /* pointer to message sent to task */ } r = OK; - switch (m_ptr->TTY_REQUEST) { + switch (m_ptr->REQUEST) { case TCGETS: /* Get the termios attributes. */ r = sys_safecopyto(m_ptr->m_source, (cp_grant_id_t) m_ptr->IO_GRANT, 0, @@ -820,12 +728,12 @@ message *m_ptr; /* pointer to message sent to task */ tp->tty_ioproc = m_ptr->USER_ENDPT; tp->tty_ioreq = m_ptr->REQUEST; tp->tty_iogrant = (cp_grant_id_t) m_ptr->IO_GRANT; - r = SUSPEND; + return; } break; } - if (m_ptr->TTY_REQUEST == TCDRAIN) break; - if (m_ptr->TTY_REQUEST == TCSETSF) tty_icancel(tp); + if (m_ptr->REQUEST == TCDRAIN) break; + if (m_ptr->REQUEST == TCSETSF) tty_icancel(tp); /*FALL THROUGH*/ case TCSETS: /* Set the termios attributes. */ @@ -906,7 +814,8 @@ message *m_ptr; /* pointer to message sent to task */ } /* Send the reply. */ - tty_reply(TASK_REPLY, m_ptr->m_source, m_ptr->USER_ENDPT, r); + tty_reply(DEV_REVIVE, m_ptr->m_source, m_ptr->USER_ENDPT, + (cp_grant_id_t) m_ptr->IO_GRANT, r); } /*===========================================================================* @@ -922,7 +831,7 @@ message *m_ptr; /* pointer to message sent to task */ */ int r = OK; - if (m_ptr->TTY_LINE == LOG_MINOR) { + if (m_ptr->DEVICE == LOG_MINOR) { /* The log device is a write-only diagnostics device. */ if (m_ptr->COUNT & R_BIT) r = EACCES; } else { @@ -936,7 +845,8 @@ message *m_ptr; /* pointer to message sent to task */ (*tp->tty_open)(tp, 0); } } - tty_reply(TASK_REPLY, m_ptr->m_source, m_ptr->USER_ENDPT, r); + tty_reply(DEV_OPEN_REPL, m_ptr->m_source, m_ptr->USER_ENDPT, + (cp_grant_id_t) m_ptr->IO_GRANT, r); } /*===========================================================================* @@ -948,7 +858,7 @@ message *m_ptr; /* pointer to message sent to task */ { /* A tty line has been closed. Clean up the line if it is the last close. */ - if (m_ptr->TTY_LINE != LOG_MINOR && --tp->tty_openct == 0) { + if (m_ptr->DEVICE != LOG_MINOR && --tp->tty_openct == 0) { tp->tty_pgrp = 0; tty_icancel(tp); (*tp->tty_ocancel)(tp, 0); @@ -957,7 +867,8 @@ message *m_ptr; /* pointer to message sent to task */ tp->tty_winsize = winsize_defaults; setattr(tp); } - tty_reply(TASK_REPLY, m_ptr->m_source, m_ptr->USER_ENDPT, OK); + tty_reply(DEV_CLOSE_REPL, m_ptr->m_source, m_ptr->USER_ENDPT, + (cp_grant_id_t) m_ptr->IO_GRANT, OK); } /*===========================================================================* @@ -970,35 +881,39 @@ message *m_ptr; /* pointer to message sent to task */ /* A signal has been sent to a process that is hanging trying to read or write. * The pending read or write must be finished off immediately. */ - - int proc_nr; + endpoint_t proc_nr; + cp_grant_id_t grant; int mode; - int r = EINTR; + int r = EDONTREPLY; /* Check the parameters carefully, to avoid cancelling twice. */ proc_nr = m_ptr->USER_ENDPT; + grant = (cp_grant_id_t) m_ptr->IO_GRANT; mode = m_ptr->COUNT; if ((mode & R_BIT) && tp->tty_inleft != 0 && proc_nr == tp->tty_inproc && - tp->tty_ingrant == (cp_grant_id_t) m_ptr->IO_GRANT) { + tp->tty_ingrant == grant) { /* Process was reading when killed. Clean up input. */ tty_icancel(tp); r = tp->tty_incum > 0 ? tp->tty_incum : EAGAIN; - tp->tty_inleft = tp->tty_incum = tp->tty_inrevived = 0; + tp->tty_inleft = tp->tty_incum = 0; tp->tty_ingrant = GRANT_INVALID; } if ((mode & W_BIT) && tp->tty_outleft != 0 && proc_nr == tp->tty_outproc && - tp->tty_outgrant == (cp_grant_id_t) m_ptr->IO_GRANT) { + tp->tty_outgrant == grant) { /* Process was writing when killed. Clean up output. */ r = tp->tty_outcum > 0 ? tp->tty_outcum : EAGAIN; - tp->tty_outleft = tp->tty_outcum = tp->tty_outrevived = 0; + tp->tty_outleft = tp->tty_outcum = 0; tp->tty_outgrant = GRANT_INVALID; } if (tp->tty_ioreq != 0 && proc_nr == tp->tty_ioproc) { /* Process was waiting for output to drain. */ tp->tty_ioreq = 0; + r = EINTR; } tp->tty_events = 1; - tty_reply(TASK_REPLY, m_ptr->m_source, proc_nr, r); + /* Only reply if we found a matching request. */ + if (r != EDONTREPLY) + tty_reply(DEV_REVIVE, m_ptr->m_source, proc_nr, grant, r); } int select_try(struct tty *tp, int ops) @@ -1037,8 +952,14 @@ int select_try(struct tty *tp, int ops) int select_retry(struct tty *tp) { - if (tp->tty_select_ops && select_try(tp, tp->tty_select_ops)) - notify(tp->tty_select_proc); + int ops; + + if (tp->tty_select_ops && (ops = select_try(tp, tp->tty_select_ops))) { + assert(tp->tty_select_minor == tp->tty_minor); + select_reply(DEV_SEL_REPL2, tp->tty_select_proc, tp->tty_minor, + ops); + tp->tty_select_ops &= ~ops; + } return OK; } @@ -1080,16 +1001,10 @@ tty_t *tp; /* TTY to check for events. */ /* Reply if enough bytes are available. */ if (tp->tty_incum >= tp->tty_min && tp->tty_inleft > 0) { - if (tp->tty_inrepcode == TTY_REVIVE) { - notify(tp->tty_incaller); - tp->tty_inrevived = 1; - } else { - tty_reply(tp->tty_inrepcode, tp->tty_incaller, - tp->tty_inproc, tp->tty_incum); - tp->tty_inleft = tp->tty_incum = 0; - tp->tty_inrevived = 0; - tp->tty_ingrant = GRANT_INVALID; - } + tty_reply(DEV_REVIVE, tp->tty_incaller, tp->tty_inproc, + tp->tty_ingrant, tp->tty_incum); + tp->tty_inleft = tp->tty_incum = 0; + tp->tty_ingrant = GRANT_INVALID; } if (tp->tty_select_ops) { @@ -1162,16 +1077,10 @@ register tty_t *tp; /* pointer to terminal to read from */ /* Usually reply to the reader, possibly even if incum == 0 (EOF). */ if (tp->tty_inleft == 0) { - if (tp->tty_inrepcode == TTY_REVIVE) { - notify(tp->tty_incaller); - tp->tty_inrevived = 1; - } else { - tty_reply(tp->tty_inrepcode, tp->tty_incaller, - tp->tty_inproc, tp->tty_incum); - tp->tty_inleft = tp->tty_incum = 0; - tp->tty_inrevived = 0; - tp->tty_ingrant = GRANT_INVALID; - } + tty_reply(DEV_REVIVE, tp->tty_incaller, tp->tty_inproc, + tp->tty_ingrant, tp->tty_incum); + tp->tty_inleft = tp->tty_incum = 0; + tp->tty_ingrant = GRANT_INVALID; } } @@ -1601,9 +1510,9 @@ tty_t *tp; if (result == OK) setattr(tp); } tp->tty_ioreq = 0; - notify(tp->tty_iocaller); - tp->tty_iorevived = 1; - tp->tty_iostatus = result; + tty_reply(DEV_REVIVE, tp->tty_iocaller, tp->tty_ioproc, tp->tty_iogrant, + result); + tp->tty_iogrant = GRANT_INVALID; } /*===========================================================================* @@ -1667,25 +1576,52 @@ tty_t *tp; *===========================================================================*/ void tty_reply_f( -file, line, code, replyee, proc_nr, status) +file, line, code, replyee, proc_nr, grant, status) char *file; int line; -int code; /* TASK_REPLY or REVIVE */ -int replyee; /* destination address for the reply */ -int proc_nr; /* to whom should the reply go? */ +int code; /* DEV_OPEN_REPL, DEV_CLOSE_REPL, DEV_REVIVE */ +endpoint_t replyee; /* destination address for the reply */ +endpoint_t proc_nr; /* to whom should the reply go? */ +cp_grant_id_t grant; /* which grant was involved? */ int status; /* reply code */ { -/* Send a reply to a process that wanted to read or write data. */ - assert(code == TASK_REPLY); + message m; + + assert(code == DEV_OPEN_REPL || code == DEV_CLOSE_REPL || code == DEV_REVIVE); /* Don't reply to KERNEL (kernel messages) */ if (replyee == KERNEL) return; - status = send_taskreply(replyee, proc_nr, status); + memset(&m, 0, sizeof(m)); + + m.REP_ENDPT = proc_nr; + m.REP_IO_GRANT = grant; + m.REP_STATUS = status; + + status = _sendcall(replyee, code, &m); if (status != OK) printf("tty`tty_reply: send to %d failed: %d\n", replyee, status); } +/*===========================================================================* + * select_reply * + *===========================================================================*/ +void select_reply(int code, endpoint_t replyee, dev_t minor, int ops) +{ + message m; + int status; + + memset(&m, 0, sizeof(m)); + + m.DEV_MINOR = minor; + m.DEV_SEL_OPS = ops; + + status = _sendcall(replyee, code, &m); + if (status != OK) + printf("tty`select_reply: send to %d failed: %d\n", replyee, status); +} + + /*===========================================================================* * sigchar * *===========================================================================*/ @@ -1824,18 +1760,17 @@ register message *m_ptr; /* pointer to message sent to the task */ { int ops, ready_ops = 0, watch; - ops = m_ptr->USER_ENDPT & (SEL_RD|SEL_WR|SEL_ERR); - watch = (m_ptr->USER_ENDPT & SEL_NOTIFY) ? 1 : 0; + ops = m_ptr->DEV_SEL_OPS & (SEL_RD|SEL_WR|SEL_ERR); + watch = (m_ptr->DEV_SEL_OPS & SEL_NOTIFY) ? 1 : 0; ready_ops = select_try(tp, ops); if (!ready_ops && ops && watch) { tp->tty_select_ops |= ops; tp->tty_select_proc = m_ptr->m_source; + tp->tty_select_minor = m_ptr->DEV_MINOR; } - tty_reply(TASK_REPLY, m_ptr->m_source, m_ptr->USER_ENDPT, ready_ops); - - return; + assert(tp->tty_minor == m_ptr->DEV_MINOR); + select_reply(DEV_SEL_REPL1, m_ptr->m_source, tp->tty_minor, ready_ops); } - diff --git a/drivers/tty/tty.h b/drivers/tty/tty.h index 9bf4147de..1933692df 100644 --- a/drivers/tty/tty.h +++ b/drivers/tty/tty.h @@ -5,8 +5,6 @@ #undef lock #undef unlock -#define TTY_REVIVE 6767 - /* First minor numbers for the various classes of TTY devices. */ #define CONS_MINOR 0 #define LOG_MINOR 15 @@ -63,16 +61,12 @@ typedef struct tty { char tty_openct; /* count of number of opens of this tty */ /* Information about incomplete I/O requests is stored here. */ - int tty_inrepcode; /* reply code, TASK_REPLY or REVIVE */ - char tty_inrevived; /* set to 1 if revive callback is pending */ endpoint_t tty_incaller; /* process that made the call (usually VFS) */ endpoint_t tty_inproc; /* process that wants to read from tty */ cp_grant_id_t tty_ingrant; /* grant where data is to go */ vir_bytes tty_inoffset; /* offset into grant */ int tty_inleft; /* how many chars are still needed */ int tty_incum; /* # chars input so far */ - int tty_outrepcode; /* reply code, TASK_REPLY or REVIVE */ - int tty_outrevived; /* set to 1 if revive callback is pending */ endpoint_t tty_outcaller; /* process that made the call (usually VFS) */ endpoint_t tty_outproc; /* process that wants to write to tty */ cp_grant_id_t tty_outgrant; /* grant where data comes from */ @@ -80,15 +74,14 @@ typedef struct tty { int tty_outleft; /* # chars yet to be output */ int tty_outcum; /* # chars output so far */ endpoint_t tty_iocaller; /* process that made the call (usually VFS) */ - int tty_iorevived; /* set to 1 if revive callback is pending */ endpoint_t tty_ioproc; /* process that wants to do an ioctl */ - int tty_iostatus; /* result */ int tty_ioreq; /* ioctl request code */ cp_grant_id_t tty_iogrant; /* virtual address of ioctl buffer or grant */ /* select() data */ int tty_select_ops; /* which operations are interesting */ endpoint_t tty_select_proc; /* which process wants notification */ + dev_t tty_select_minor; /* sanity check only, can be removed */ /* Miscellaneous. */ devfun_t tty_ioctl; /* set line speed, etc. at the device level */ @@ -146,9 +139,10 @@ int in_process(struct tty *tp, char *buf, int count, int scode); void out_process(struct tty *tp, char *bstart, char *bpos, char *bend, int *icount, int *ocount); void tty_wakeup(clock_t now); -#define tty_reply(c, r, p, s) tty_reply_f(__FILE__, __LINE__, (c), (r), (p), (s)) -void tty_reply_f(char *f, int l, int code, int replyee, int proc_nr, int - status); +#define tty_reply(c, r, p, g, s) tty_reply_f(__FILE__, __LINE__, (c), (r), (p), (g), (s)) +void tty_reply_f(char *f, int l, int code, endpoint_t replyee, + endpoint_t proc_nr, cp_grant_id_t grant, int status); +void select_reply(int code, endpoint_t replyee, dev_t minor, int ops); int select_try(struct tty *tp, int ops); int select_retry(struct tty *tp); @@ -175,11 +169,8 @@ void kbd_interrupt(message *m); void do_kbd(message *m); void do_kb_inject(message *m); void do_kbdaux(message *m); -int kbd_status(message *m_ptr); /* pty.c */ void do_pty(struct tty *tp, message *m_ptr); void pty_init(struct tty *tp); void select_retry_pty(struct tty *tp); -int pty_status(message *m_ptr); - diff --git a/etc/rs.inet b/etc/rs.inet index 57c458827..8eb1529a0 100755 --- a/etc/rs.inet +++ b/etc/rs.inet @@ -65,7 +65,7 @@ kill_by_name syslogd sleep 3 if [ X`/bin/sysenv lwip` = Xyes ] then - service up /usr/sbin/lwip -script /etc/rs.inet -dev /dev/ip -devstyle STYLE_CLONE_A + service up /usr/sbin/lwip -script /etc/rs.inet -dev /dev/ip -devstyle STYLE_CLONE dhcpd --lwip & else service up /usr/sbin/inet -script /etc/rs.inet -dev /dev/ip -devstyle STYLE_CLONE diff --git a/etc/usr/rc b/etc/usr/rc index 283b25bfb..67d51c46e 100644 --- a/etc/usr/rc +++ b/etc/usr/rc @@ -167,7 +167,7 @@ start) # Start servers and drivers set at the boot monitor. echo -n "Starting services:" - up -n random -dev /dev/random -devstyle STYLE_DEVA -period 3HZ + up -n random -dev /dev/random -period 3HZ # load random number generator if [ -f $RANDOM_FILE ] @@ -188,9 +188,9 @@ start) done if [ X`/bin/sysenv lwip` = Xyes ] then - up lwip -script /etc/rs.inet -dev /dev/ip -devstyle STYLE_CLONE_A + up lwip -script /etc/rs.inet -dev /dev/ip -devstyle STYLE_CLONE else - up inet -script /etc/rs.inet -dev /dev/ip -devstyle STYLE_CLONE + up inet -script /etc/rs.inet -dev /dev/ip -devstyle STYLE_CLONE fi up -n ipc diff --git a/include/minix/callnr.h b/include/minix/callnr.h index 31f3b9522..618550a56 100644 --- a/include/minix/callnr.h +++ b/include/minix/callnr.h @@ -108,8 +108,5 @@ #define VFS_VMCALL 117 -#define TASK_REPLY 121 /* to VFS: reply code from drivers, not - * really a standalone call. - */ #define MAPDRIVER 122 /* to VFS, map a device */ #define GETRUSAGE 123 /* to PM, VFS */ diff --git a/include/minix/chardriver.h b/include/minix/chardriver.h index a7a594f67..c2146d1a8 100644 --- a/include/minix/chardriver.h +++ b/include/minix/chardriver.h @@ -19,17 +19,12 @@ struct chardriver { int(*cdr_other) (message *m_ptr); }; -#define CHARDRIVER_SYNC 0 /* use the synchronous protocol */ -#define CHARDRIVER_ASYNC 1 /* use the asynchronous protocol */ - -#define IS_CDEV_MINOR_RQ(type) (IS_DEV_RQ(type) && (type) != DEV_STATUS) - /* Functions defined by libchardriver. */ void chardriver_announce(void); -void chardriver_process(struct chardriver *cdp, int driver_type, message - *m_ptr, int ipc_status); +void chardriver_process(struct chardriver *cdp, message *m_ptr, + int ipc_status); void chardriver_terminate(void); -void chardriver_task(struct chardriver *cdp, int driver_type); +void chardriver_task(struct chardriver *cdp); int do_nop(message *m_ptr); void nop_cleanup(void); diff --git a/include/minix/com.h b/include/minix/com.h index 860a8e448..35b7e4322 100644 --- a/include/minix/com.h +++ b/include/minix/com.h @@ -196,7 +196,6 @@ #define DEV_OPEN (DEV_RQ_BASE + 6) /* open a minor device */ #define DEV_CLOSE (DEV_RQ_BASE + 7) /* close a minor device */ #define DEV_SELECT (DEV_RQ_BASE + 12) /* request select() attention */ -#define DEV_STATUS (DEV_RQ_BASE + 13) /* request driver status */ #define DEV_REOPEN (DEV_RQ_BASE + 14) /* reopen a minor device */ #define DEV_READ_S (DEV_RQ_BASE + 20) /* (safecopy) read from minor */ @@ -208,8 +207,6 @@ #define IS_DEV_RQ(type) (((type) & ~0xff) == DEV_RQ_BASE) #define DEV_REVIVE (DEV_RS_BASE + 2) /* driver revives process */ -#define DEV_IO_READY (DEV_RS_BASE + 3) /* selected device ready */ -#define DEV_NO_STATUS (DEV_RS_BASE + 4) /* empty status reply */ #define DEV_REOPEN_REPL (DEV_RS_BASE + 5) /* reply to DEV_REOPEN */ #define DEV_CLOSE_REPL (DEV_RS_BASE + 6) /* reply to DEV_CLOSE */ #define DEV_SEL_REPL1 (DEV_RS_BASE + 7) /* first reply to DEV_SELECT */ @@ -241,12 +238,6 @@ #define REP_IO_GRANT m2_i3 /* DEV_REVIVE: grant by which I/O was done */ # define SUSPEND -998 /* status to suspend caller, reply later */ -/* Field names for messages to TTY driver. */ -#define TTY_LINE DEVICE /* message parameter: terminal line */ -#define TTY_REQUEST COUNT /* message parameter: ioctl request code */ -#define TTY_SPEK POSITION/* message parameter: ioctl speed, erasing */ -#define TTY_PGRP m2_i3 /* message parameter: process group */ - /*===========================================================================* * Messages for networking layer * *===========================================================================*/ @@ -937,6 +928,11 @@ #define VFS_UMOUNT_LABEL m1_p2 #define VFS_UMOUNT_LABELLEN m1_i2 +/* Field names for the ioctl(2) call. */ +#define VFS_IOCTL_FD m2_i1 +#define VFS_IOCTL_REQ m2_i3 +#define VFS_IOCTL_ARG m2_p1 + /*===========================================================================* * Messages for VM server * *===========================================================================*/ diff --git a/include/minix/dmap.h b/include/minix/dmap.h index b041ee3e7..2387267fa 100644 --- a/include/minix/dmap.h +++ b/include/minix/dmap.h @@ -4,12 +4,8 @@ #include #include -enum dev_style { STYLE_NDEV, STYLE_DEV, STYLE_DEVA, STYLE_TTY, STYLE_CTTY, - STYLE_CLONE, STYLE_CLONE_A }; -#define IS_DEV_STYLE(s) (s>=STYLE_NDEV && s<=STYLE_CLONE_A) - -#define dev_style_asyn(devstyle) ((devstyle) == STYLE_DEVA || \ - (devstyle) == STYLE_CLONE_A) +enum dev_style { STYLE_NDEV, STYLE_DEV, STYLE_TTY, STYLE_CTTY, STYLE_CLONE }; +#define IS_DEV_STYLE(s) (s>=STYLE_NDEV && s<=STYLE_CLONE) /*===========================================================================* * Major and minor device numbers * diff --git a/include/minix/syslib.h b/include/minix/syslib.h index c789acc7f..3d1d1084b 100644 --- a/include/minix/syslib.h +++ b/include/minix/syslib.h @@ -159,8 +159,6 @@ int sys_umap_data_fb(endpoint_t proc_ep, vir_bytes vir_addr, vir_bytes int sys_umap_remote(endpoint_t proc_ep, endpoint_t grantee, int seg, vir_bytes vir_addr, vir_bytes bytes, phys_bytes *phys_addr); -int send_taskreply(endpoint_t who, endpoint_t endpoint, int status); - /* Shorthands for sys_getinfo() system call. */ #define sys_getkinfo(dst) sys_getinfo(GET_KINFO, dst, 0,0,0) #define sys_getloadinfo(dst) sys_getinfo(GET_LOADINFO, dst, 0,0,0) diff --git a/lib/libaudiodriver/audio_fw.c b/lib/libaudiodriver/audio_fw.c index 34ae2f5e8..13a1bde5f 100644 --- a/lib/libaudiodriver/audio_fw.c +++ b/lib/libaudiodriver/audio_fw.c @@ -20,11 +20,7 @@ * |-------------+---------+---------+---------+---------+---------| * | DEV_IOCTL_S | device | proc nr |func code| | buf ptr | * |-------------+---------+---------+---------+---------+---------| - * | DEV_STATUS | | | | | | - * |-------------+---------+---------+---------+---------+---------| * | HARD_INT | | | | | | - * |-------------+---------+---------+---------+---------+---------| - * | SIG_STOP | | | | | | * ----------------------------------------------------------------- * * The file contains one entry point: @@ -81,7 +77,6 @@ static void sef_cb_signal_handler(int signo); EXTERN int sef_cb_lu_prepare(int state); EXTERN int sef_cb_lu_state_isvalid(int state); EXTERN void sef_cb_lu_state_dump(int state); -int is_status_msg_expected = FALSE; int main(void) { @@ -121,8 +116,10 @@ int main(void) case DEV_OPEN: /* open the special file ( = parameter) */ r = msg_open(mess.DEVICE); - repl_mess.m_type = DEV_REVIVE; + repl_mess.m_type = DEV_OPEN_REPL; repl_mess.REP_ENDPT = mess.USER_ENDPT; + repl_mess.REP_IO_GRANT = + (cp_grant_id_t) mess.IO_GRANT; repl_mess.REP_STATUS = r; send(caller, &repl_mess); @@ -133,6 +130,8 @@ int main(void) r = msg_close(mess.DEVICE); repl_mess.m_type = DEV_CLOSE_REPL; repl_mess.REP_ENDPT = mess.USER_ENDPT; + repl_mess.REP_IO_GRANT = + (cp_grant_id_t) mess.IO_GRANT; repl_mess.REP_STATUS = r; send(caller, &repl_mess); @@ -146,7 +145,7 @@ int main(void) repl_mess.m_type = DEV_REVIVE; repl_mess.REP_ENDPT = mess.USER_ENDPT; repl_mess.REP_IO_GRANT = - (unsigned)mess.IO_GRANT; + (cp_grant_id_t) mess.IO_GRANT; repl_mess.REP_STATUS = r; send(caller, &repl_mess); } @@ -156,13 +155,13 @@ int main(void) msg_read(&mess); continue; /* don't reply */ case DEV_WRITE_S: msg_write(&mess); continue; /* don't reply */ - case DEV_STATUS: - msg_status(&mess);continue; /* don't reply */ case DEV_REOPEN: /* reopen the special file ( = parameter) */ r = msg_open(mess.DEVICE); repl_mess.m_type = DEV_REOPEN_REPL; repl_mess.REP_ENDPT = mess.USER_ENDPT; + repl_mess.REP_IO_GRANT = + (cp_grant_id_t) mess.IO_GRANT; repl_mess.REP_STATUS = r; send(caller, &repl_mess); continue; @@ -626,35 +625,6 @@ static void msg_hardware(void) { } -static void msg_status(message *m_ptr) -{ - int i; - - for (i = 0; i < drv.NrOfSubDevices; i++) { - - if(sub_dev[i].ReadyToRevive) - { - m_ptr->m_type = DEV_REVIVE; /* build message */ - m_ptr->REP_ENDPT = sub_dev[i].ReviveProcNr; - m_ptr->REP_IO_GRANT = sub_dev[i].ReviveGrant; - m_ptr->REP_STATUS = sub_dev[i].ReviveStatus; - send(m_ptr->m_source, m_ptr); /* send the message */ - - /* reset variables */ - sub_dev[i].ReadyToRevive = FALSE; - sub_dev[i].RevivePending = 0; - - is_status_msg_expected = TRUE; - return; /* stop after one mess, - file system will get back for other processes */ - } - } - m_ptr->m_type = DEV_NO_STATUS; - m_ptr->REP_STATUS = 0; - send(m_ptr->m_source, m_ptr); /* send DEV_NO_STATUS message */ - is_status_msg_expected = FALSE; -} - /* handle interrupt for specified sub device; DmaMode == DEV_WRITE_S*/ static void handle_int_write(int sub_dev_nr) { @@ -712,6 +682,7 @@ static void handle_int_write(int sub_dev_nr) static void handle_int_read(int sub_dev_nr) { sub_dev_t *sub_dev_ptr; + message m; sub_dev_ptr = &sub_dev[sub_dev_nr]; @@ -729,9 +700,14 @@ static void handle_int_read(int sub_dev_nr) printf("All buffers full, we have a problem.\n"); drv_stop(sub_dev_nr); /* stop the sub device */ sub_dev_ptr->DmaBusy = FALSE; - sub_dev_ptr->ReviveStatus = 0; /* no data for user, - this is a sad story */ - sub_dev_ptr->ReadyToRevive = TRUE; /* wake user up */ + sub_dev_ptr->ReviveStatus = 0; /* no data for user, + * this is a sad story + */ + m.m_type = DEV_REVIVE; + m.REP_ENDPT = sub_dev_ptr->ReviveProcNr; + m.REP_IO_GRANT = sub_dev_ptr->ReviveGrant; + m.REP_STATUS = sub_dev_ptr->ReviveStatus; + send(sub_dev_ptr->SourceProcNr, &m); return; } else { /* dma full, still room in extra buf; @@ -790,9 +766,6 @@ static void data_from_user(sub_dev_t *subdev) if (!subdev->RevivePending) return; /* no new data waiting to be copied */ - if (subdev->RevivePending && - subdev->ReadyToRevive) return; /* we already got this data */ - if (subdev->DmaLength < subdev->NrOfDmaFragments) { /* room in dma buf */ r = sys_safecopyfrom(subdev->SourceProcNr, @@ -835,7 +808,6 @@ static void data_from_user(sub_dev_t *subdev) } subdev->ReviveStatus = subdev->FragSize; - subdev->ReadyToRevive = TRUE; m.m_type = DEV_REVIVE; /* build message */ m.REP_ENDPT = subdev->ReviveProcNr; @@ -849,7 +821,6 @@ static void data_from_user(sub_dev_t *subdev) } /* reset variables */ - subdev->ReadyToRevive = FALSE; subdev->RevivePending = 0; } @@ -860,7 +831,6 @@ static void data_to_user(sub_dev_t *sub_dev_ptr) message m; if (!sub_dev_ptr->RevivePending) return; /* nobody is wating for data */ - if (sub_dev_ptr->ReadyToRevive) return;/* we already filled user's buffer */ if (sub_dev_ptr->BufLength == 0 && sub_dev_ptr->DmaLength == 0) return; /* no data for user */ @@ -896,7 +866,6 @@ static void data_to_user(sub_dev_t *sub_dev_ptr) } sub_dev_ptr->ReviveStatus = sub_dev_ptr->FragSize; - sub_dev_ptr->ReadyToRevive = TRUE; /* drv_status will send REVIVE mess to FS*/ m.m_type = DEV_REVIVE; /* build message */ @@ -911,7 +880,6 @@ static void data_to_user(sub_dev_t *sub_dev_ptr) } /* reset variables */ - sub_dev_ptr->ReadyToRevive = FALSE; sub_dev_ptr->RevivePending = 0; } diff --git a/lib/libaudiodriver/liveupdate.c b/lib/libaudiodriver/liveupdate.c index 96b8a35fe..19364c1b3 100644 --- a/lib/libaudiodriver/liveupdate.c +++ b/lib/libaudiodriver/liveupdate.c @@ -1,7 +1,5 @@ #include -/* State management variables. */ -EXTERN int is_status_msg_expected; /* * - From audio_fw.h: * EXTERN drv_t drv; @@ -60,8 +58,7 @@ int sef_cb_lu_prepare(int state) break; case SEF_LU_STATE_PROTOCOL_FREE: - is_ready = (!is_read_pending && !is_write_pending - && !is_status_msg_expected); + is_ready = (!is_read_pending && !is_write_pending); break; /* Custom states. */ @@ -95,8 +92,6 @@ void sef_cb_lu_state_dump(int state) load_state_info(); sef_lu_dprint("audio: live update state = %d\n", state); - sef_lu_dprint("audio: is_status_msg_expected = %d\n", - is_status_msg_expected); sef_lu_dprint("audio: is_read_pending = %d\n", is_read_pending); sef_lu_dprint("audio: is_write_pending = %d\n", is_write_pending); @@ -105,8 +100,7 @@ void sef_cb_lu_state_dump(int state) sef_lu_dprint("audio: SEF_LU_STATE_REQUEST_FREE(%d) reached = %d\n", SEF_LU_STATE_REQUEST_FREE, (!is_read_pending && !is_write_pending)); sef_lu_dprint("audio: SEF_LU_STATE_PROTOCOL_FREE(%d) reached = %d\n", - SEF_LU_STATE_PROTOCOL_FREE, (!is_read_pending && !is_write_pending - && !is_status_msg_expected)); + SEF_LU_STATE_PROTOCOL_FREE, (!is_read_pending && !is_write_pending)); sef_lu_dprint("audio: AUDIO_STATE_READ_REQUEST_FREE(%d) reached = %d\n", AUDIO_STATE_READ_REQUEST_FREE, (!is_read_pending)); sef_lu_dprint("audio: AUDIO_STATE_WRITE_REQUEST_FREE(%d) reached = %d\n", diff --git a/lib/libc/sys-minix/ioctl.c b/lib/libc/sys-minix/ioctl.c index 32d4252e8..5086c1458 100644 --- a/lib/libc/sys-minix/ioctl.c +++ b/lib/libc/sys-minix/ioctl.c @@ -73,9 +73,9 @@ void *data; break; } - m.TTY_LINE = fd; - m.TTY_REQUEST = request; - m.ADDRESS = (char *) addr; + m.VFS_IOCTL_FD = fd; + m.VFS_IOCTL_REQ = request; + m.VFS_IOCTL_ARG = (char *) addr; r = _syscall(VFS_PROC_NR, IOCTL, &m); diff --git a/lib/libchardriver/chardriver.c b/lib/libchardriver/chardriver.c index 13fa620b0..178ff1394 100644 --- a/lib/libchardriver/chardriver.c +++ b/lib/libchardriver/chardriver.c @@ -28,6 +28,7 @@ * driver_receive: message receive interface for drivers * * Changes: + * Oct 20, 2013 retire synchronous protocol (D.C. van Moolenbroek) * Oct 16, 2011 split character and block protocol (D.C. van Moolenbroek) * Aug 27, 2011 move common functions into driver.c (A. Welzel) * Jul 25, 2005 added SYS_SIG type for signals (Jorrit N. Herder) @@ -117,16 +118,19 @@ void chardriver_announce(void) } /*===========================================================================* - * async_reply * + * send_reply * *===========================================================================*/ -static void async_reply(message *mess, int r) +static void send_reply(message *mess, int ipc_status, int r) { -/* Send a reply using the asynchronous character device protocol. */ +/* Prepare and send a reply message. */ message reply_mess; - /* Do not reply with ERESTART in this protocol. The only possible caller, - * VFS, will find out through other means when we have restarted, and is not - * (fully) ready to deal with ERESTART errors. + if (r == EDONTREPLY) + return; + + /* Do not reply with ERESTART. The only possible caller, VFS, will find out + * through other means when we have restarted, and is not (fully) ready to + * deal with ERESTART errors. */ if (r == ERESTART) return; @@ -150,7 +154,7 @@ static void async_reply(message *mess, int r) case DEV_WRITE_S: case DEV_IOCTL_S: if (r == SUSPEND) - printf("driver_task: reviving %d (%d) with SUSPEND\n", + printf("chardriver_task: reviving %d (%d) with SUSPEND\n", mess->m_source, mess->USER_ENDPT); reply_mess.m_type = DEV_REVIVE; @@ -170,60 +174,22 @@ static void async_reply(message *mess, int r) break; default: - reply_mess.m_type = TASK_REPLY; + reply_mess.m_type = DEV_REVIVE; reply_mess.REP_ENDPT = mess->USER_ENDPT; /* Status is # of bytes transferred or error code. */ reply_mess.REP_STATUS = r; break; } - r = asynsend(mess->m_source, &reply_mess); - - if (r != OK) - printf("asyn_reply: unable to asynsend reply to %d: %d\n", - mess->m_source, r); -} - -/*===========================================================================* - * sync_reply * - *===========================================================================*/ -static void sync_reply(message *m_ptr, int ipc_status, int reply) -{ -/* Reply to a message sent to the driver. */ - endpoint_t caller_e, user_e; - int r; - - caller_e = m_ptr->m_source; - user_e = m_ptr->USER_ENDPT; - - m_ptr->m_type = TASK_REPLY; - m_ptr->REP_ENDPT = user_e; - m_ptr->REP_STATUS = reply; - /* If we would block sending the message, send it asynchronously. */ if (IPC_STATUS_CALL(ipc_status) == SENDREC) - r = sendnb(caller_e, m_ptr); + r = sendnb(mess->m_source, &reply_mess); else - r = asynsend(caller_e, m_ptr); + r = asynsend3(mess->m_source, &reply_mess, AMF_NOREPLY); if (r != OK) - printf("driver_reply: unable to send reply to %d: %d\n", caller_e, r); -} - -/*===========================================================================* - * send_reply * - *===========================================================================*/ -static void send_reply(int type, message *m_ptr, int ipc_status, int reply) -{ -/* Prepare and send a reply message. */ - - if (reply == EDONTREPLY) - return; - - if (type == CHARDRIVER_ASYNC) - async_reply(m_ptr, reply); - else - sync_reply(m_ptr, ipc_status, reply); + printf("send_reply: unable to send reply to %d: %d\n", + mess->m_source, r); } /*===========================================================================* @@ -343,7 +309,7 @@ static int handle_request(struct chardriver *cdp, message *m_ptr) * requests on devices that have not previously been opened, signaling the * caller that something went wrong. */ - if (IS_CDEV_MINOR_RQ(m_ptr->m_type) && !is_open_dev(m_ptr->DEVICE)) { + if (IS_DEV_RQ(m_ptr->m_type) && !is_open_dev(m_ptr->DEVICE)) { /* Reply ERESTART to spurious requests for unopened devices. */ if (m_ptr->m_type != DEV_OPEN) return ERESTART; @@ -380,8 +346,7 @@ static int handle_request(struct chardriver *cdp, message *m_ptr) /*===========================================================================* * chardriver_process * *===========================================================================*/ -void chardriver_process(struct chardriver *cdp, int driver_type, - message *m_ptr, int ipc_status) +void chardriver_process(struct chardriver *cdp, message *m_ptr, int ipc_status) { /* Handle the given received message. */ int r; @@ -394,14 +359,14 @@ void chardriver_process(struct chardriver *cdp, int driver_type, } else { r = handle_request(cdp, m_ptr); - send_reply(driver_type, m_ptr, ipc_status, r); + send_reply(m_ptr, ipc_status, r); } } /*===========================================================================* * chardriver_task * *===========================================================================*/ -void chardriver_task(struct chardriver *cdp, int driver_type) +void chardriver_task(struct chardriver *cdp) { /* Main program of any device driver task. */ int r, ipc_status; @@ -416,7 +381,7 @@ void chardriver_task(struct chardriver *cdp, int driver_type) if ((r = sef_receive_status(ANY, &mess, &ipc_status)) != OK) panic("driver_receive failed: %d", r); - chardriver_process(cdp, driver_type, &mess, ipc_status); + chardriver_process(cdp, &mess, ipc_status); } } diff --git a/lib/libddekit/src/msg_queue.c b/lib/libddekit/src/msg_queue.c index 3ea82708b..a68e6cf10 100644 --- a/lib/libddekit/src/msg_queue.c +++ b/lib/libddekit/src/msg_queue.c @@ -93,19 +93,14 @@ _ddekit_minix_queue_msg ( full = ddekit_sem_down_try(mq->msg_w_sem); if (full) { - /* Our message queue is full... inform the sender. */ + /* Our message queue is full... */ int result; - DDEBUG_MSG_WARN("Receive queue is full. Ommiting ingoing msg.\n"); - - m->m_type = TASK_REPLY; - m->REP_STATUS = EAGAIN; - result = asynsend(m->m_source, m); - - if (result != 0) { - ddekit_panic("unable to send reply to %d: %d\n", - m->m_source, result); - } + DDEBUG_MSG_WARN("Receive queue is full. Dropping request.\n"); + /* XXX should reply to the sender with EIO or so, but for that + * we would need to look at the request and find a suitable + * reply code.. + */ } else { /* queue the message */ memcpy(&mq->messages[mq->msg_w_pos], m, sizeof(message)); diff --git a/lib/libsys/Makefile b/lib/libsys/Makefile index b20be6ac4..5d5759730 100644 --- a/lib/libsys/Makefile +++ b/lib/libsys/Makefile @@ -76,7 +76,6 @@ SRCS+= \ sys_vsafecopy.c \ sys_vtimer.c \ sys_vumap.c \ - send_taskreply.c \ taskcall.c \ tickdelay.c \ timers.c \ diff --git a/lib/libsys/send_taskreply.c b/lib/libsys/send_taskreply.c deleted file mode 100644 index c14daf573..000000000 --- a/lib/libsys/send_taskreply.c +++ /dev/null @@ -1,20 +0,0 @@ - -#include - -#include "syslib.h" - -/*===========================================================================* - * sys_taskreply * - *===========================================================================*/ -int send_taskreply(endpoint_t who, endpoint_t endpoint, int status) -{ - message m; - - memset(&m, 0, sizeof(m)); - - m.REP_ENDPT = endpoint; - m.REP_STATUS = status; - - return _sendcall(who, TASK_REPLY, &m); -} - diff --git a/servers/inet/sr.c b/servers/inet/sr.c index 201bdd467..cd82917b7 100644 --- a/servers/inet/sr.c +++ b/servers/inet/sr.c @@ -25,31 +25,10 @@ * | DEV_SELECT | minor dev | ops | | | * |-------------+-----------+-----------+-----------+-----------| * - * m_type - * --------------| - * | DEV_STATUS | - * |-------------| - * * m_type DEVICE USER_ENDPT COUNT * --------------------------------------------------| * | CANCEL | minor dev | proc nr | mode | * |-------------+-----------+-----------+-----------| - * - * Replies: - * - * m_type REP_ENDPT REP_STATUS REP_IO_GRANT - * -------------------------------------------------------| - * | TASK_REPLY | proc nr | status | grant ID | - * |---------------+-----------+-----------+--------------| - * - * m_type REP_ENDPT REP_STATUS REP_IO_GRANT - * ----------------+-----------+--------------------------| - * | DEV_REVIVE | proc nr | | grant ID | - * |---------------+-----------+-----------+--------------| - * | DEV_IO_READY | minor dev | sel ops | | - * |---------------+-----------+-----------+--------------| - * | DEV_NO_STATUS | | | | - * |---------------+-----------+-----------+--------------| */ #include "inet.h" @@ -72,7 +51,6 @@ THIS_FILE sr_fd_t sr_fd_table[FD_NR]; -static mq_t *repl_queue, *repl_queue_tail; static struct vscp_vec s_cp_req[SCPVEC_NR]; static int sr_open(message *m); @@ -82,16 +60,14 @@ static int sr_restart_read(sr_fd_t *fdp); static int sr_restart_write(sr_fd_t *fdp); static int sr_restart_ioctl(sr_fd_t *fdp); static int sr_cancel(message *m); -static int sr_select(message *m); -static void sr_status(message *m); -static void sr_reply_(mq_t *m, int reply, int is_revive); +static void sr_select(message *m); +static void sr_reply_(mq_t *m, int code, int reply, int is_revive); static sr_fd_t *sr_getchannel(int minor); static acc_t *sr_get_userdata(int fd, size_t offset, size_t count, int for_ioctl); static int sr_put_userdata(int fd, size_t offset, acc_t *data, int for_ioctl); static void sr_select_res(int fd, unsigned ops); -static int sr_repl_queue(int proc, int ref, int operation); static int walk_queue(sr_fd_t *sr_fd, mq_t **q_head_ptr, mq_t **q_tail_ptr, int type, int proc_nr, int ref, int first_flag); static void sr_event(event_t *evp, ev_arg_t arg); @@ -111,44 +87,26 @@ void sr_init() ev_init(&sr_fd_table[i].srf_read_ev); ev_init(&sr_fd_table[i].srf_write_ev); } - repl_queue= NULL; } void sr_rec(m) mq_t *m; { - int result; + int code = DEV_REVIVE, result; int send_reply = 0, free_mess = 0; - if (repl_queue) - { - if (m->mq_mess.m_type == CANCEL) - { - result= sr_repl_queue(m->mq_mess.USER_ENDPT, - (int)m->mq_mess.IO_GRANT, 0); - - if (result) - { - mq_free(m); - return; /* canceled request in queue */ - } - } -#if 0 - else - sr_repl_queue(ANY, 0, 0); -#endif - } - switch (m->mq_mess.m_type) { case DEV_OPEN: result= sr_open(&m->mq_mess); + code= DEV_OPEN_REPL; send_reply= 1; free_mess= 1; break; case DEV_CLOSE: sr_close(&m->mq_mess); result= OK; + code= DEV_CLOSE_REPL; send_reply= 1; free_mess= 1; break; @@ -158,24 +116,17 @@ mq_t *m; result= sr_rwio(m); assert(result == OK || result == EAGAIN || result == EINTR || result == SUSPEND); - send_reply= (result == EAGAIN || result == SUSPEND); + send_reply= (result == EAGAIN); free_mess= (result == EAGAIN); break; case CANCEL: result= sr_cancel(&m->mq_mess); - assert(result == OK || result == EINTR); + assert(result == OK || result == EINTR || result == SUSPEND); send_reply= (result == EINTR); free_mess= 1; - m->mq_mess.m_type= 0; break; case DEV_SELECT: - result= sr_select(&m->mq_mess); - send_reply= 1; - free_mess= 1; - break; - case DEV_STATUS: - sr_status(&m->mq_mess); - result= OK; /* Satisfy lint. */ + sr_select(&m->mq_mess); send_reply= 0; free_mess= 1; break; @@ -185,7 +136,7 @@ mq_t *m; } if (send_reply) { - sr_reply_(m, result, FALSE /* !is_revive */); + sr_reply_(m, code, result, FALSE /* !is_revive */); } if (free_mess) mq_free(m); @@ -469,7 +420,6 @@ message *m; int result; int proc_nr, ref; - result=EINTR; proc_nr= m->USER_ENDPT; ref= (int)m->IO_GRANT; sr_fd= sr_getchannel(m->DEVICE); @@ -493,27 +443,24 @@ message *m; if (result != EAGAIN) return result; - ip_panic(( -"request not found: from %d, type %d, MINOR= %d, PROC= %d, REF= %d", - m->m_source, m->m_type, m->DEVICE, - m->USER_ENDPT, (int) m->IO_GRANT)); - - return result; + /* We already replied to the request, so don't reply to the CANCEL. */ + return SUSPEND; } -static int sr_select(m) +static void sr_select(m) message *m; { + message m_reply; sr_fd_t *sr_fd; int r; unsigned m_ops, i_ops; - sr_fd= sr_getchannel(m->DEVICE); + sr_fd= sr_getchannel(m->DEV_MINOR); assert (sr_fd); sr_fd->srf_select_proc= m->m_source; - m_ops= m->USER_ENDPT; + m_ops= m->DEV_SEL_OPS; i_ops= 0; if (m_ops & SEL_RD) i_ops |= SR_SELECT_READ; if (m_ops & SEL_WR) i_ops |= SR_SELECT_WRITE; @@ -521,72 +468,22 @@ message *m; if (!(m_ops & SEL_NOTIFY)) i_ops |= SR_SELECT_POLL; r= (*sr_fd->srf_select)(sr_fd->srf_fd, i_ops); - if (r < 0) - return r; - m_ops= 0; - if (r & SR_SELECT_READ) m_ops |= SEL_RD; - if (r & SR_SELECT_WRITE) m_ops |= SEL_WR; - if (r & SR_SELECT_EXCEPTION) m_ops |= SEL_ERR; - - return m_ops; -} - -static void sr_status(m) -message *m; -{ - int fd, result; - unsigned m_ops; - sr_fd_t *sr_fd; - mq_t *mq; - - mq= repl_queue; - if (mq != NULL) - { - repl_queue= mq->mq_next; - - mq->mq_mess.m_type= DEV_REVIVE; - result= send(mq->mq_mess.m_source, &mq->mq_mess); - if (result != OK) - ip_panic(("unable to send")); - mq_free(mq); - - return; - } - - for (fd=0, sr_fd= sr_fd_table; fdsrf_flags & - (SFF_SELECT_R|SFF_SELECT_W|SFF_SELECT_X)) == 0) - { - /* Nothing to report */ - continue; - } - if (sr_fd->srf_select_proc != m->m_source) - { - /* Wrong process */ - continue; - } - + if (r < 0) { + m_ops= r; + } else { m_ops= 0; - if (sr_fd->srf_flags & SFF_SELECT_R) m_ops |= SEL_RD; - if (sr_fd->srf_flags & SFF_SELECT_W) m_ops |= SEL_WR; - if (sr_fd->srf_flags & SFF_SELECT_X) m_ops |= SEL_ERR; - - sr_fd->srf_flags &= ~(SFF_SELECT_R|SFF_SELECT_W|SFF_SELECT_X); - - m->m_type= DEV_IO_READY; - m->DEV_MINOR= fd; - m->DEV_SEL_OPS= m_ops; - - result= send(m->m_source, m); - if (result != OK) - ip_panic(("unable to send")); - return; + if (r & SR_SELECT_READ) m_ops |= SEL_RD; + if (r & SR_SELECT_WRITE) m_ops |= SEL_WR; + if (r & SR_SELECT_EXCEPTION) m_ops |= SEL_ERR; } - m->m_type= DEV_NO_STATUS; - result= send(m->m_source, m); - if (result != OK) + memset(&m_reply, 0, sizeof(m_reply)); + m_reply.m_type= DEV_SEL_REPL1; + m_reply.DEV_MINOR= m->DEV_MINOR; + m_reply.DEV_SEL_OPS= m_ops; + + r= send(m->m_source, &m_reply); + if (r != OK) ip_panic(("unable to send")); } @@ -651,8 +548,9 @@ int minor; return loc_fd; } -static void sr_reply_(mq, status, is_revive) +static void sr_reply_(mq, code, status, is_revive) mq_t *mq; +int code; int status; int is_revive; { @@ -667,30 +565,12 @@ int is_revive; else mp= &reply; - mp->m_type= TASK_REPLY; + mp->m_type= code; mp->REP_ENDPT= proc; mp->REP_STATUS= status; mp->REP_IO_GRANT= ref; - if (is_revive) - { - notify(mq->mq_mess.m_source); - result= ELOCKED; - } - else - { - result= send(mq->mq_mess.m_source, mp); - } + result= send(mq->mq_mess.m_source, mp); - if (result == ELOCKED && is_revive) - { - mq->mq_next= NULL; - if (repl_queue) - repl_queue_tail->mq_next= mq; - else - repl_queue= mq; - repl_queue_tail= mq; - return; - } if (result != OK) ip_panic(("unable to send")); if (is_revive) @@ -739,7 +619,7 @@ int for_ioctl; *head_ptr= mq; result= (int)offset; is_revive= !(loc_fd->srf_flags & first_flag); - sr_reply_(m, result, is_revive); + sr_reply_(m, DEV_REVIVE, result, is_revive); suspended= (loc_fd->srf_flags & susp_flag); loc_fd->srf_flags &= ~(ip_flag|susp_flag); if (suspended) @@ -800,7 +680,7 @@ int for_ioctl; *head_ptr= mq; result= (int)offset; is_revive= !(loc_fd->srf_flags & first_flag); - sr_reply_(m, result, is_revive); + sr_reply_(m, DEV_REVIVE, result, is_revive); suspended= (loc_fd->srf_flags & susp_flag); loc_fd->srf_flags &= ~(ip_flag|susp_flag); if (suspended) @@ -820,15 +700,26 @@ int for_ioctl; static void sr_select_res(int fd, unsigned ops) { + message m; sr_fd_t *sr_fd; + unsigned int m_ops; + int result; sr_fd= &sr_fd_table[fd]; - - if (ops & SR_SELECT_READ) sr_fd->srf_flags |= SFF_SELECT_R; - if (ops & SR_SELECT_WRITE) sr_fd->srf_flags |= SFF_SELECT_W; - if (ops & SR_SELECT_EXCEPTION) sr_fd->srf_flags |= SFF_SELECT_X; - notify(sr_fd->srf_select_proc); + m_ops= 0; + if (ops & SR_SELECT_READ) m_ops |= SEL_RD; + if (ops & SR_SELECT_WRITE) m_ops |= SEL_WR; + if (ops & SR_SELECT_EXCEPTION) m_ops |= SEL_ERR; + + memset(&m, 0, sizeof(m)); + m.m_type= DEV_SEL_REPL2; + m.DEV_MINOR= fd; + m.DEV_SEL_OPS= m_ops; + + result= send(sr_fd->srf_select_proc, &m); + if (result != OK) + ip_panic(("unable to send")); } static void sr_event(evp, arg) @@ -998,45 +889,6 @@ vir_bytes offset; return OK; } -static int sr_repl_queue(proc, ref, operation) -int proc; -int ref; -int operation; -{ - mq_t *m, *m_cancel, *m_tmp; - mq_t *new_queue; - int result; - - m_cancel= NULL; - new_queue= NULL; - - for (m= repl_queue; m;) - { - if (m->mq_mess.REP_ENDPT == proc && - m->mq_mess.REP_IO_GRANT == ref) - { - assert(!m_cancel); - m_cancel= m; - m= m->mq_next; - continue; - } - m_tmp= m; - m= m->mq_next; - m_tmp->mq_next= new_queue; - new_queue= m_tmp; - } - repl_queue= new_queue; - if (m_cancel) - { - result= send(m_cancel->mq_mess.m_source, &m_cancel->mq_mess); - if (result != OK) - ip_panic(("unable to send: %d", result)); - mq_free(m_cancel); - return 1; - } - return 0; -} - /* * $PchId: sr.c,v 1.17 2005/06/28 14:26:16 philip Exp $ */ diff --git a/servers/inet/sr_int.h b/servers/inet/sr_int.h index 0a5494ecd..4699c9da4 100644 --- a/servers/inet/sr_int.h +++ b/servers/inet/sr_int.h @@ -43,9 +43,6 @@ typedef struct sr_fd #define SFF_IOCTL_FIRST 0x200 #define SFF_READ_FIRST 0x400 #define SFF_WRITE_FIRST 0x800 -#define SFF_SELECT_R 0x1000 -#define SFF_SELECT_W 0x2000 -#define SFF_SELECT_X 0x4000 EXTERN sr_fd_t sr_fd_table[FD_NR]; diff --git a/servers/is/dmp_fs.c b/servers/is/dmp_fs.c index ee486c99d..b12bfb268 100644 --- a/servers/is/dmp_fs.c +++ b/servers/is/dmp_fs.c @@ -74,11 +74,9 @@ static char * dmap_style(int dev_style) { switch(dev_style) { case STYLE_DEV: return "STYLE_DEV"; - case STYLE_DEVA: return "STYLE_DEVA"; case STYLE_TTY: return "STYLE_TTY"; case STYLE_CTTY: return "STYLE_CTTY"; case STYLE_CLONE: return "STYLE_CLONE"; - case STYLE_CLONE_A: return "STYLE_CLONE_A"; default: return "UNKNOWN"; } } diff --git a/servers/pfs/dev_uds.c b/servers/pfs/dev_uds.c index 885e19440..3937235d3 100644 --- a/servers/pfs/dev_uds.c +++ b/servers/pfs/dev_uds.c @@ -1074,14 +1074,8 @@ int uds_cancel(message *dev_m_in, message *dev_m_out) minor = uds_minor(dev_m_in); if (uds_fd_table[minor].state != UDS_INUSE) { - - /* attempted to close a socket that hasn't been opened -- - * something is very wrong :( - */ - uds_set_reply(dev_m_out, DEV_NO_STATUS, dev_m_in->USER_ENDPT, - (cp_grant_id_t) dev_m_in->IO_GRANT, EINVAL); - - return EINVAL; + /* attempted to cancel an unknown request - this happens */ + return SUSPEND; } /* Update the process endpoint. */ @@ -1184,8 +1178,7 @@ int uds_cancel(message *dev_m_in, message *dev_m_out) uds_fd_table[minor].syscall_done = 1; } - - uds_set_reply(dev_m_out, DEV_NO_STATUS, dev_m_in->USER_ENDPT, + uds_set_reply(dev_m_out, DEV_REVIVE, dev_m_in->USER_ENDPT, (cp_grant_id_t) dev_m_in->IO_GRANT, EINTR); return EINTR; diff --git a/servers/pfs/table.c b/servers/pfs/table.c index ff3e62da3..af1e754ca 100644 --- a/servers/pfs/table.c +++ b/servers/pfs/table.c @@ -61,10 +61,10 @@ int (*dev_call_vec[])(message *dev_m_in, message *dev_m_out) = { uds_close, /* 7 DEV_CLOSE */ no_sys, /* 8 */ no_sys, /* 9 */ - no_sys, /* 10 TTY_SETPGRP */ - no_sys, /* 11 TTY_EXIT */ + no_sys, /* 10 */ + no_sys, /* 11 */ uds_select, /* 12 DEV_SELECT */ - no_sys, /* 13 DEV_STATUS */ + no_sys, /* 13 */ uds_open, /* 14 DEV_REOPEN */ no_sys, /* 15 */ no_sys, /* 16 */ diff --git a/servers/rs/table.c b/servers/rs/table.c index 4bcb40dfb..80595dcb1 100644 --- a/servers/rs/table.c +++ b/servers/rs/table.c @@ -47,8 +47,8 @@ struct boot_image_dev boot_image_dev_table[] = { /*endpoint, flags, dev_nr, dev_style, dev_style2 */ { TTY_PROC_NR, SRV_DF, TTY_MAJOR, STYLE_TTY, STYLE_CTTY }, { MEM_PROC_NR, SRV_DF, MEMORY_MAJOR, STYLE_DEV, STYLE_NDEV }, - { LOG_PROC_NR, SRV_DF, LOG_MAJOR, STYLE_DEVA, STYLE_NDEV }, - { PFS_PROC_NR, SRV_DF, UDS_MAJOR, STYLE_CLONE_A,STYLE_NDEV }, + { LOG_PROC_NR, SRV_DF, LOG_MAJOR, STYLE_DEV, STYLE_NDEV }, + { PFS_PROC_NR, SRV_DF, UDS_MAJOR, STYLE_CLONE,STYLE_NDEV }, { DEFAULT_BOOT_NR, SRV_DF, 0, STYLE_NDEV, STYLE_NDEV } /* default * entry */ diff --git a/servers/vfs/const.h b/servers/vfs/const.h index 1ad292055..3705a8a1f 100644 --- a/servers/vfs/const.h +++ b/servers/vfs/const.h @@ -28,7 +28,7 @@ #define fp_is_blocked(fp) ((fp)->fp_blocked_on != FP_BLOCKED_ON_NONE) /* test if reply is a driver reply */ -#define IS_DRV_REPLY(x) (IS_DEV_RS(x) || IS_BDEV_RS(x) || (x) == TASK_REPLY) +#define IS_DRV_REPLY(x) (IS_DEV_RS(x) || IS_BDEV_RS(x)) #define DUP_MASK 0100 /* mask to distinguish dup2 from dup */ #define LOOK_UP 0 /* tells search_dir to lookup string */ @@ -50,4 +50,6 @@ #define VFS_DEV_IOCTL 2005 #define VFS_DEV_SELECT 2006 +#define dev_style_asyn(n) (TRUE) + #endif diff --git a/servers/vfs/device.c b/servers/vfs/device.c index a4a7d5d8c..64f7fa6aa 100644 --- a/servers/vfs/device.c +++ b/servers/vfs/device.c @@ -8,7 +8,6 @@ * bdev_open: open a block device * bdev_close: close a block device * dev_io: FS does a read or write on a device - * dev_status: FS processes callback request alert * gen_opcl: generic call to a task to perform an open/close * gen_io: generic call to a task to perform an I/O operation * no_dev: open/close processing for devices that don't exist @@ -169,7 +168,7 @@ static int bdev_ioctl(dev_t dev, endpoint_t proc_e, int req, void *buf) /* Determine task dmap. */ dp = &dmap[major_dev]; if (dp->dmap_driver == NONE) { - printf("VFS: dev_io: no driver for major %d\n", major_dev); + printf("VFS: bdev_ioctl: no driver for major %d\n", major_dev); return(ENXIO); } @@ -188,7 +187,7 @@ static int bdev_ioctl(dev_t dev, endpoint_t proc_e, int req, void *buf) dev_mess.BDEV_ID = 0; /* Call the task. */ - (*dp->dmap_io)(dp->dmap_driver, &dev_mess); + gen_io(dp->dmap_driver, &dev_mess); /* Clean up. */ if (GRANT_VALID(gid)) cpf_revoke(gid); @@ -225,71 +224,6 @@ endpoint_t find_suspended_ep(endpoint_t driver, cp_grant_id_t g) } -/*===========================================================================* - * dev_status * - *===========================================================================*/ -void dev_status(endpoint_t drv_e) -{ -/* A device sent us a notification it has something for us. Retrieve it. */ - - message st; - int major, get_more = 1; - endpoint_t endpt; - - for (major = 0; major < NR_DEVICES; major++) - if (dmap_driver_match(drv_e, major)) - break; /* 'major' is the device that sent the message */ - - if (major >= NR_DEVICES) /* Device endpoint not found; nothing to do */ - return; - - if (dev_style_asyn(dmap[major].dmap_style)) { - printf("VFS: not doing dev_status for async driver %d\n", drv_e); - return; - } - - /* Continuously send DEV_STATUS messages until the device has nothing to - * say to us anymore. */ - do { - int r; - st.m_type = DEV_STATUS; - r = drv_sendrec(drv_e, &st); - if (r == OK && st.REP_STATUS == ERESTART) r = EDEADEPT; - if (r != OK) { - printf("VFS: DEV_STATUS failed to %d: %d\n", drv_e, r); - if (r == EDEADSRCDST || r == EDEADEPT) return; - panic("VFS: couldn't sendrec for DEV_STATUS: %d", r); - } - - switch(st.m_type) { - case DEV_REVIVE: - /* We've got results for a read/write/ioctl call to a - * synchronous character driver */ - endpt = st.REP_ENDPT; - if (endpt == VFS_PROC_NR) { - endpt = find_suspended_ep(drv_e, st.REP_IO_GRANT); - if (endpt == NONE) { - printf("VFS: proc with grant %d from %d not found\n", - st.REP_IO_GRANT, st.m_source); - continue; - } - } - revive(endpt, st.REP_STATUS); - break; - case DEV_IO_READY: - /* Reply to a select request: driver is ready for I/O */ - select_reply2(st.m_source, st.DEV_MINOR, st.DEV_SEL_OPS); - break; - default: - printf("VFS: unrecognized reply %d to DEV_STATUS\n",st.m_type); - /* Fall through. */ - case DEV_NO_STATUS: - get_more = 0; - break; - } - } while(get_more); -} - /*===========================================================================* * safe_io_conversion * *===========================================================================*/ @@ -514,18 +448,22 @@ int gen_opcl( dev_mess.BDEV_MINOR = minor_dev; dev_mess.BDEV_ACCESS = flags; dev_mess.BDEV_ID = 0; + + /* Call the task. */ + r = gen_io(dp->dmap_driver, &dev_mess); } else { dev_mess.m_type = op; dev_mess.DEVICE = minor_dev; dev_mess.USER_ENDPT = proc_e; dev_mess.COUNT = flags; + + /* Call the task. */ + r = (*dp->dmap_io)(dp->dmap_driver, &dev_mess); } - /* Call the task. */ - r = (*dp->dmap_io)(dp->dmap_driver, &dev_mess); if (r != OK) return(r); - if (op == DEV_OPEN && dp->dmap_style == STYLE_DEVA) { + if (op == DEV_OPEN && dev_style_asyn(dp->dmap_style)) { fp->fp_task = dp->dmap_driver; self->w_task = dp->dmap_driver; self->w_drv_sendrec = &dev_mess; @@ -637,9 +575,9 @@ int do_ioctl(message *UNUSED(m_out)) dev_t dev; void *argx; - scratch(fp).file.fd_nr = job_m_in.ls_fd; - ioctlrequest = job_m_in.REQUEST; - argx = job_m_in.ADDRESS; + scratch(fp).file.fd_nr = job_m_in.VFS_IOCTL_FD; + ioctlrequest = job_m_in.VFS_IOCTL_REQ; + argx = job_m_in.VFS_IOCTL_ARG; if ((f = get_filp(scratch(fp).file.fd_nr, VNODE_READ)) == NULL) return(err_code); diff --git a/servers/vfs/dmap.c b/servers/vfs/dmap.c index 7f0b513be..3111c95b2 100644 --- a/servers/vfs/dmap.c +++ b/servers/vfs/dmap.c @@ -179,26 +179,18 @@ int flags; /* device flags */ /* Store driver I/O routines based on type of device */ switch (style) { case STYLE_DEV: - dp->dmap_opcl = gen_opcl; - dp->dmap_io = gen_io; - break; - case STYLE_DEVA: dp->dmap_opcl = gen_opcl; dp->dmap_io = asyn_io; break; case STYLE_TTY: dp->dmap_opcl = tty_opcl; - dp->dmap_io = gen_io; + dp->dmap_io = asyn_io; break; case STYLE_CTTY: dp->dmap_opcl = ctty_opcl; dp->dmap_io = ctty_io; break; case STYLE_CLONE: - dp->dmap_opcl = clone_opcl; - dp->dmap_io = gen_io; - break; - case STYLE_CLONE_A: dp->dmap_opcl = clone_opcl; dp->dmap_io = asyn_io; break; diff --git a/servers/vfs/main.c b/servers/vfs/main.c index 386afa131..41997836b 100644 --- a/servers/vfs/main.c +++ b/servers/vfs/main.c @@ -42,7 +42,6 @@ EXTERN unsigned long calls_stats[NCALLS]; /* Thread related prototypes */ static void *do_async_dev_result(void *arg); static void *do_control_msgs(void *arg); -static void *do_dev_event(void *arg); static void *do_fs_reply(struct job *job); static void *do_work(void *arg); static void *do_pm(void *arg); @@ -114,8 +113,6 @@ int main(void) handle_work(ds_event); else if (who_e == KERNEL) mthread_stacktraces(); - else if (fp != NULL && (fp->fp_flags & FP_SRV_PROC)) - handle_work(do_dev_event); else sys_worker_start(do_control_msgs); continue; @@ -140,7 +137,8 @@ int main(void) dp = get_dmap(who_e); if (dp != NULL) { - if (dev_style_asyn(dp->dmap_style)) { + if (!IS_BDEV_RS(call_nr) && + dev_style_asyn(dp->dmap_style)) { handle_work(do_async_dev_result); } else { @@ -272,23 +270,6 @@ static void *do_control_msgs(void *arg) return(NULL); } -/*===========================================================================* - * do_dev_event * - *===========================================================================*/ -static void *do_dev_event(void *arg) -{ -/* Device notifies us of an event. */ - struct job my_job; - - my_job = *((struct job *) arg); - fp = my_job.j_fp; - - dev_status(job_m_in.m_source); - - thread_cleanup(fp); - return(NULL); -} - /*===========================================================================* * do_fs_reply * *===========================================================================*/ diff --git a/servers/vfs/pipe.c b/servers/vfs/pipe.c index 8f4fd7036..9d0a0a83b 100644 --- a/servers/vfs/pipe.c +++ b/servers/vfs/pipe.c @@ -612,7 +612,7 @@ void unpause(endpoint_t proc_e) dev = (dev_t) f->filp_vno->v_sdev; /* device hung on */ major_dev = major(dev); minor_dev = minor(dev); - mess.TTY_LINE = minor_dev; + mess.DEVICE = minor_dev; mess.USER_ENDPT = rfp->fp_ioproc; mess.IO_GRANT = (char *) rfp->fp_grant; diff --git a/servers/vfs/proto.h b/servers/vfs/proto.h index 919867c20..ff0124f9e 100644 --- a/servers/vfs/proto.h +++ b/servers/vfs/proto.h @@ -48,7 +48,6 @@ int clone_opcl(int op, dev_t dev, endpoint_t proc, int flags); int ctty_io(endpoint_t task_nr, message *mess_ptr); int do_ioctl(message *m_out); void pm_setsid(endpoint_t proc_e); -void dev_status(endpoint_t drv_e); void bdev_up(int major); void cdev_up(int major); endpoint_t find_suspended_ep(endpoint_t driver, cp_grant_id_t g); diff --git a/servers/vfs/select.c b/servers/vfs/select.c index e70337b9f..46a480de4 100644 --- a/servers/vfs/select.c +++ b/servers/vfs/select.c @@ -415,8 +415,7 @@ static int select_request_major(struct filp *f, int *ops, int block) major = major(f->filp_vno->v_sdev); if (major < 0 || major >= NR_DEVICES) return(ENXIO); - if (dmap[major].dmap_style == STYLE_DEVA || - dmap[major].dmap_style == STYLE_CLONE_A) + if (dev_style_asyn(dmap[major].dmap_style)) r = select_request_async(f, ops, block); else r = select_request_sync(f, ops, block);