Module Name:    src
Committed By:   tsutsui
Date:           Sun Jun 26 06:02:28 UTC 2022

Modified Files:
        src/sys/arch/atari/dev: ms.c msvar.h

Log Message:
Misc KNF and cleanup for readability.


To generate a diff of this commit:
cvs rdiff -u -r1.26 -r1.27 src/sys/arch/atari/dev/ms.c
cvs rdiff -u -r1.4 -r1.5 src/sys/arch/atari/dev/msvar.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/sys/arch/atari/dev/ms.c
diff -u src/sys/arch/atari/dev/ms.c:1.26 src/sys/arch/atari/dev/ms.c:1.27
--- src/sys/arch/atari/dev/ms.c:1.26	Fri Jul 25 08:10:32 2014
+++ src/sys/arch/atari/dev/ms.c	Sun Jun 26 06:02:28 2022
@@ -1,4 +1,4 @@
-/*	$NetBSD: ms.c,v 1.26 2014/07/25 08:10:32 dholland Exp $	*/
+/*	$NetBSD: ms.c,v 1.27 2022/06/26 06:02:28 tsutsui Exp $	*/
 
 /*
  * Copyright (c) 1995 Leo Weppelman.
@@ -52,7 +52,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ms.c,v 1.26 2014/07/25 08:10:32 dholland Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ms.c,v 1.27 2022/06/26 06:02:28 tsutsui Exp $");
 
 #include <sys/param.h>
 #include <sys/conf.h>
@@ -79,9 +79,9 @@ __KERNEL_RCSID(0, "$NetBSD: ms.c,v 1.26 
 #define NMOUSE 1
 #endif
 
-typedef void	(*FPV)(void *);
+typedef void (*FPV)(void *);
 
-static struct ms_softc	ms_softc[NMOUSE];
+static struct ms_softc ms_softc[NMOUSE];
 
 dev_type_open(msopen);
 dev_type_close(msclose);
@@ -105,45 +105,47 @@ const struct cdevsw ms_cdevsw = {
 	.d_flag = 0
 };
 
-static	void	ms_3b_delay(struct ms_softc *);
+static void ms_3b_delay(struct ms_softc *);
 
 int
 mouseattach(int cnt)
 {
+
 	printf("1 mouse configured\n");
 	ms_softc[0].ms_emul3b = 1;
 	callout_init(&ms_softc[0].ms_delay_ch, 0);
-	return(NMOUSE);
+
+	return NMOUSE;
 }
 
 static void
 ms_3b_delay(struct ms_softc *ms)
 {
-	REL_MOUSE	rel_ms;
+	REL_MOUSE rel_ms;
 
 	rel_ms.id = TIMEOUT_ID;
 	rel_ms.dx = rel_ms.dy = 0;
 	mouse_soft(&rel_ms, sizeof(rel_ms), KBD_TIMEO_PKG);
 }
-/* 
+/*
  * Note that we are called from the keyboard software interrupt!
  */
 void
 mouse_soft(REL_MOUSE *rel_ms, int size, int type)
 {
-	struct ms_softc		*ms = &ms_softc[0];
-	struct firm_event	*fe, *fe2;
-	REL_MOUSE		fake_mouse;
-	int			get, put;
-	int			sps;
-	u_char			mbut, bmask;
-	int			flush_buttons;
+	struct ms_softc *ms = &ms_softc[0];
+	struct firm_event *fe, *fe2;
+	REL_MOUSE fake_mouse;
+	int get, put;
+	int s;
+	uint8_t mbut, bmask;
+	int flush_buttons;
 
 	if (ms->ms_events.ev_io == NULL)
 		return;
 
 	switch (type) {
-	    case KBD_JOY1_PKG:
+	case KBD_JOY1_PKG:
 		/*
 		 * Ignore if in emulation mode
 		 */
@@ -158,11 +160,12 @@ mouse_soft(REL_MOUSE *rel_ms, int size, 
 		 * Flush all button changes.
 		 */
 		flush_buttons = 1;
-		fake_mouse.id = (rel_ms->dx & 1 ? 4 : 0) | (ms->ms_buttons & 3);
+		fake_mouse.id = ((rel_ms->dx & 0x01) != 0 ? 0x04 : 0x00) |
+		    (ms->ms_buttons & 0x03);
 		fake_mouse.dx = fake_mouse.dy = 0;
 		rel_ms = &fake_mouse;
 		break;
-	    case KBD_TIMEO_PKG:
+	case KBD_TIMEO_PKG:
 		/*
 		 * Timeout package. No button changes and no movement.
 		 * Flush all button changes.
@@ -172,31 +175,31 @@ mouse_soft(REL_MOUSE *rel_ms, int size, 
 		fake_mouse.dx = fake_mouse.dy = 0;
 		rel_ms = &fake_mouse;
 		break;
-	    case KBD_RMS_PKG:
+	case KBD_RMS_PKG:
 		/*
 		 * Normal mouse package. Always copy the middle button
 		 * status. The emulation code decides if button changes
 		 * must be flushed.
 		 */
-		rel_ms->id = (ms->ms_buttons & 4) | (rel_ms->id & 3);
-		flush_buttons = (ms->ms_emul3b) ? 0 : 1;
+		rel_ms->id = (ms->ms_buttons & 0x04) | (rel_ms->id & 0x03);
+		flush_buttons = ms->ms_emul3b ? 0 : 1;
 		break;
-	    default:
+	default:
 		return;
 	}
 
-	sps = splev();
+	s = splev();
 	get = ms->ms_events.ev_get;
 	put = ms->ms_events.ev_put;
 	fe  = &ms->ms_events.ev_q[put];
 
-	if ((type != KBD_TIMEO_PKG) && ms->ms_emul3b && ms->ms_bq_idx)
+	if ((type != KBD_TIMEO_PKG) && ms->ms_emul3b && ms->ms_bq_idx != 0)
 		callout_stop(&ms->ms_delay_ch);
 
 	/*
 	 * Button states are encoded in the lower 3 bits of 'id'
 	 */
-	if (!(mbut = (rel_ms->id ^ ms->ms_buttons)) && (put != get)) {
+	if ((mbut = (rel_ms->id ^ ms->ms_buttons)) == 0 && (put != get)) {
 		/*
 		 * Compact dx/dy messages. Always generate an event when
 		 * a button is pressed or the event queue is empty.
@@ -213,7 +216,7 @@ mouse_soft(REL_MOUSE *rel_ms, int size, 
 	 * Output location events _before_ button events ie. make sure
 	 * the button is pressed at the correct location.
 	 */
-	if (rel_ms->dx) {
+	if (rel_ms->dx != 0) {
 		if ((++put) % EV_QSIZE == get) {
 			put--;
 			goto out;
@@ -224,10 +227,11 @@ mouse_soft(REL_MOUSE *rel_ms, int size, 
 		if (put >= EV_QSIZE) {
 			put = 0;
 			fe  = &ms->ms_events.ev_q[0];
+		} else {
+			fe++;
 		}
-		else fe++;
 	}
-	if (rel_ms->dy) {
+	if (rel_ms->dy != 0) {
 		if ((++put) % EV_QSIZE == get) {
 			put--;
 			goto out;
@@ -238,20 +242,23 @@ mouse_soft(REL_MOUSE *rel_ms, int size, 
 		if (put >= EV_QSIZE) {
 			put = 0;
 			fe  = &ms->ms_events.ev_q[0];
+		} else {
+			fe++;
 		}
-		else fe++;
 	}
-	if (mbut && (type != KBD_TIMEO_PKG)) {
-		for (bmask = 1; bmask < 0x08; bmask <<= 1) {
-			if (!(mbut & bmask))
+	if (mbut != 0 && (type != KBD_TIMEO_PKG)) {
+		for (bmask = 0x01; bmask < 0x08; bmask <<= 1) {
+			if ((mbut & bmask) == 0)
 				continue;
 			fe2 = &ms->ms_bq[ms->ms_bq_idx++];
-			if (bmask == 1)
+			if (bmask == 0x01)
 				fe2->id = MS_RIGHT;
-			else if (bmask == 2)
+			else if (bmask == 0x02)
 				fe2->id = MS_LEFT;
-			else fe2->id = MS_MIDDLE;
-			fe2->value = rel_ms->id & bmask ? VKEY_DOWN : VKEY_UP;
+			else
+				fe2->id = MS_MIDDLE;
+			fe2->value =
+			    (rel_ms->id & bmask) != 0 ?  VKEY_DOWN : VKEY_UP;
 			firm_gettime(fe2);
 		}
 	}
@@ -259,19 +266,19 @@ mouse_soft(REL_MOUSE *rel_ms, int size, 
 	/*
 	 * Handle 3rd button emulation.
 	 */
-	if (ms->ms_emul3b && ms->ms_bq_idx && (type != KBD_TIMEO_PKG)) {
+	if (ms->ms_emul3b && ms->ms_bq_idx != 0 && (type != KBD_TIMEO_PKG)) {
 		/*
 		 * If the middle button is pressed, any change to
 		 * one of the other buttons releases all.
 		 */
-		if ((ms->ms_buttons & 4) && (mbut & 3)) {
+		if ((ms->ms_buttons & 0x04) != 0 && (mbut & 0x03) != 0) {
 			ms->ms_bq[0].id = MS_MIDDLE;
 			ms->ms_bq_idx   = 1;
 			rel_ms->id      = 0;
 			flush_buttons   = 1;
 			goto out;
 		}
-	    	if (ms->ms_bq_idx == 2) {
+		if (ms->ms_bq_idx == 2) {
 			if (ms->ms_bq[0].value == ms->ms_bq[1].value) {
 				/* Must be 2 button presses! */
 				ms->ms_bq[0].id = MS_MIDDLE;
@@ -286,9 +293,9 @@ mouse_soft(REL_MOUSE *rel_ms, int size, 
 		}
 		flush_buttons   = 1;
 	}
-out:
+ out:
 	if (flush_buttons) {
-		int	i;
+		int i;
 
 		for (i = 0; i < ms->ms_bq_idx; i++) {
 			if ((++put) % EV_QSIZE == get) {
@@ -300,32 +307,33 @@ out:
 			if (put >= EV_QSIZE) {
 				put = 0;
 				fe  = &ms->ms_events.ev_q[0];
+			} else {
+				fe++;
 			}
-			else fe++;
 		}
 		ms->ms_bq_idx = 0;
 	}
 	ms->ms_events.ev_put = put;
 	ms->ms_buttons       = rel_ms->id;
-	splx(sps);
+	splx(s);
 	EV_WAKEUP(&ms->ms_events);
 }
 
 int
 msopen(dev_t dev, int flags, int mode, struct lwp *l)
 {
-	u_char		report_ms_joy[] = { 0x14, 0x08 };
-	struct ms_softc	*ms;
-	int		unit;
+	uint8_t report_ms_joy[] = { 0x14, 0x08 };
+	struct ms_softc *ms;
+	int unit;
 
 	unit = minor(dev);
 	ms   = &ms_softc[unit];
 
 	if (unit >= NMOUSE)
-		return(EXDEV);
+		return EXDEV;
 
 	if (ms->ms_events.ev_io)
-		return(EBUSY);
+		return EBUSY;
 
 	ms->ms_events.ev_io = l->l_proc;
 	ms->ms_dx = ms->ms_dy = 0;
@@ -338,17 +346,17 @@ msopen(dev_t dev, int flags, int mode, s
 	 * Enable mouse reporting.
 	 */
 	kbd_write(report_ms_joy, sizeof(report_ms_joy));
-	return(0);
+	return 0;
 }
 
 int
 msclose(dev_t dev, int flags, int mode, struct lwp *l)
 {
-	u_char		disable_ms_joy[] = { 0x12, 0x1a };
-	int		unit;
-	struct ms_softc	*ms;
+	uint8_t disable_ms_joy[] = { 0x12, 0x1a };
+	int unit;
+	struct ms_softc *ms;
 
-	unit = minor (dev);
+	unit = minor(dev);
 	ms   = &ms_softc[unit];
 
 	/*
@@ -357,7 +365,7 @@ msclose(dev_t dev, int flags, int mode, 
 	kbd_write(disable_ms_joy, sizeof(disable_ms_joy));
 	ev_fini(&ms->ms_events);
 	ms->ms_events.ev_io = NULL;
-	return(0);
+	return 0;
 }
 
 int
@@ -366,48 +374,48 @@ msread(dev_t dev, struct uio *uio, int f
 	struct ms_softc *ms;
 
 	ms = &ms_softc[minor(dev)];
-	return(ev_read(&ms->ms_events, uio, flags));
+	return ev_read(&ms->ms_events, uio, flags);
 }
 
 int
 msioctl(dev_t dev, u_long cmd, register void * data, int flag, struct lwp *l)
 {
 	struct ms_softc *ms;
-	int		unit;
+	int unit;
 
 	unit = minor(dev);
 	ms = &ms_softc[unit];
 
 	switch (cmd) {
-	case  MIOCS3B_EMUL:
+	case MIOCS3B_EMUL:
 		ms->ms_emul3b = (*(int *)data != 0) ? 1 : 0;
-		return (0);
-	case  MIOCG3B_EMUL:
+		return 0;
+	case MIOCG3B_EMUL:
 		*(int *)data = ms->ms_emul3b;
-		return (0);
+		return 0;
 	case FIONBIO:		/* we will remove this someday (soon???) */
-		return(0);
+		return 0;
 	case FIOASYNC:
 		ms->ms_events.ev_async = *(int *)data != 0;
-		return(0);
+		return 0;
 	case FIOSETOWN:
-		if (-*(int *)data != ms->ms_events.ev_io->p_pgid
-		    && *(int *)data != ms->ms_events.ev_io->p_pid)
-			return(EPERM);
-		return(0);
+		if (-*(int *)data != ms->ms_events.ev_io->p_pgid &&
+		    *(int *)data != ms->ms_events.ev_io->p_pid)
+			return EPERM;
+		return 0;
 	case TIOCSPGRP:
 		if (*(int *)data != ms->ms_events.ev_io->p_pgid)
-			return(EPERM);
-		return(0);
+			return EPERM;
+		return 0;
 	case VUIDGFORMAT:	/* we only do firm_events */
 		*(int *)data = VUID_FIRM_EVENT;
-		return(0);
+		return 0;
 	case VUIDSFORMAT:
 		if (*(int *)data != VUID_FIRM_EVENT)
-			return(EINVAL);
-		return(0);
+			return EINVAL;
+		return 0;
 	}
-	return(ENOTTY);
+	return ENOTTY;
 }
 
 int
@@ -416,7 +424,7 @@ mspoll(dev_t dev, int events, struct lwp
 	struct ms_softc *ms;
 
 	ms = &ms_softc[minor(dev)];
-	return(ev_poll(&ms->ms_events, events, l));
+	return ev_poll(&ms->ms_events, events, l);
 }
 
 int
@@ -425,6 +433,6 @@ mskqfilter(dev_t dev, struct knote *kn)
 	struct ms_softc *ms;
 
 	ms = &ms_softc[minor(dev)];
-	return (ev_kqfilter(&ms->ms_events, kn));
+	return ev_kqfilter(&ms->ms_events, kn);
 }
 #endif /* NMOUSE > 0 */

Index: src/sys/arch/atari/dev/msvar.h
diff -u src/sys/arch/atari/dev/msvar.h:1.4 src/sys/arch/atari/dev/msvar.h:1.5
--- src/sys/arch/atari/dev/msvar.h:1.4	Tue Oct 20 19:10:10 2009
+++ src/sys/arch/atari/dev/msvar.h	Sun Jun 26 06:02:28 2022
@@ -1,4 +1,4 @@
-/*	$NetBSD: msvar.h,v 1.4 2009/10/20 19:10:10 snj Exp $	*/
+/*	$NetBSD: msvar.h,v 1.5 2022/06/26 06:02:28 tsutsui Exp $	*/
 
 /*
  * Copyright (c) 1996 Leo Weppelman
@@ -32,17 +32,17 @@
  * define the REL_MOUSE package, as this is the only one used.
  */
 typedef struct {
-	u_char	id;
-	char	dx;
-	char	dy;
+	uint8_t	id;
+	int8_t	dx;
+	int8_t	dy;
 } REL_MOUSE;
 
 #define IS_REL_MOUSE(id)	(((u_int)(id) & 0xF8) == 0xF8)
 #define TIMEOUT_ID		(0xFC)
 
 struct ms_softc {
-	u_char			ms_buttons; /* button states		*/
-	u_char			ms_emul3b;  /* emulate 3rd button	*/
+	uint8_t			ms_buttons; /* button states		*/
+	uint8_t			ms_emul3b;  /* emulate 3rd button	*/
 	struct	evvar		ms_events;  /* event queue state	*/
 	int			ms_dx;	    /* accumulated dx		*/
 	int			ms_dy;	    /* accumulated dy		*/

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