From owner-svn-src-head@freebsd.org Wed Aug 24 17:26:12 2016 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 31959BC59FC; Wed, 24 Aug 2016 17:26:12 +0000 (UTC) (envelope-from bde@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 0F8781383; Wed, 24 Aug 2016 17:26:11 +0000 (UTC) (envelope-from bde@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u7OHQB75032273; Wed, 24 Aug 2016 17:26:11 GMT (envelope-from bde@FreeBSD.org) Received: (from bde@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u7OHQBCu032272; Wed, 24 Aug 2016 17:26:11 GMT (envelope-from bde@FreeBSD.org) Message-Id: <201608241726.u7OHQBCu032272@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: bde set sender to bde@FreeBSD.org using -f From: Bruce Evans Date: Wed, 24 Aug 2016 17:26:11 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r304758 - head/sys/dev/syscons X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 24 Aug 2016 17:26:12 -0000 Author: bde Date: Wed Aug 24 17:26:11 2016 New Revision: 304758 URL: https://svnweb.freebsd.org/changeset/base/304758 Log: Reorganise a little to prepare for locking fixes: - in sccnopen(), open the keyboard before the screen. The keyboard currently requires Giant (although it must be spinlocked to work correctly as a console), so the previous order would be a LOR if it has any semblance of locking. - add a (currently dummy) state arg to scgetc(). Modified: head/sys/dev/syscons/syscons.c Modified: head/sys/dev/syscons/syscons.c ============================================================================== --- head/sys/dev/syscons/syscons.c Wed Aug 24 17:15:32 2016 (r304757) +++ head/sys/dev/syscons/syscons.c Wed Aug 24 17:26:11 2016 (r304758) @@ -79,6 +79,8 @@ __FBSDID("$FreeBSD$"); #include #include +struct sc_cnstate; /* not used yet */ + #define COLD 0 #define WARM 1 @@ -185,7 +187,7 @@ static void scterm(int unit, int flags); static void scshutdown(void *, int); static void scsuspend(void *); static void scresume(void *); -static u_int scgetc(sc_softc_t *sc, u_int flags); +static u_int scgetc(sc_softc_t *sc, u_int flags, struct sc_cnstate *sp); static void sc_puts(scr_stat *scp, u_char *buf, int len, int kernel); #define SCGETC_CN 1 #define SCGETC_NONBLOCK 2 @@ -750,7 +752,7 @@ sckbdevent(keyboard_t *thiskbd, int even * I don't think this is nessesary, and it doesn't fix * the Xaccel-2.1 keyboard hang, but it can't hurt. XXX */ - while ((c = scgetc(sc, SCGETC_NONBLOCK)) != NOKEY) { + while ((c = scgetc(sc, SCGETC_NONBLOCK, NULL)) != NOKEY) { cur_tty = SC_DEV(sc, sc->cur_scp->index); if (!tty_opened_ns(cur_tty)) @@ -1645,7 +1647,6 @@ sc_cnterm(struct consdev *cp) sc_console = NULL; } -struct sc_cnstate; /* not used yet */ static void sccnclose(sc_softc_t *sc, struct sc_cnstate *sp); static void sccnopen(sc_softc_t *sc, struct sc_cnstate *sp, int flags); @@ -1654,14 +1655,8 @@ sccnopen(sc_softc_t *sc, struct sc_cnsta { int kbd_mode; - if (!cold && - sc->cur_scp->index != sc_console->index && - sc->cur_scp->smode.mode == VT_AUTO && - sc_console->smode.mode == VT_AUTO) - sc_switch_scr(sc, sc_console->index); - if (sc->kbd == NULL) - return; + goto over_keyboard; /* * Make sure the keyboard is accessible even when the kbd device @@ -1673,6 +1668,14 @@ sccnopen(sc_softc_t *sc, struct sc_cnsta kbd_mode = K_XLATE; (void)kbdd_ioctl(sc->kbd, KDSKBMODE, (caddr_t)&kbd_mode); kbdd_poll(sc->kbd, TRUE); +over_keyboard: ; + + if (!cold && + sc->cur_scp->index != sc_console->index && + sc->cur_scp->smode.mode == VT_AUTO && + sc_console->smode.mode == VT_AUTO) + sc_switch_scr(sc, sc_console->index); + } static void @@ -1787,7 +1790,7 @@ sc_cngetc(struct consdev *cd) return -1; } - c = scgetc(scp->sc, SCGETC_CN | SCGETC_NONBLOCK); + c = scgetc(scp->sc, SCGETC_CN | SCGETC_NONBLOCK, NULL); switch (KEYFLAGS(c)) { case 0: /* normal char */ @@ -3383,7 +3386,7 @@ sc_init_emulator(scr_stat *scp, char *na * return NOKEY if there is nothing there. */ static u_int -scgetc(sc_softc_t *sc, u_int flags) +scgetc(sc_softc_t *sc, u_int flags, struct sc_cnstate *sp) { scr_stat *scp; #ifndef SC_NO_HISTORY