[cadcdev-svn-commits] SF.net SVN: cadcdev: [587] kos/kernel/arch/dreamcast

[<ljs...@us...>]

Revision: 587
          http://cadcdev.svn.sourceforge.net/cadcdev/?rev=587&view=rev
Author:   ljsebald
Date:     2008-05-19 19:45:34 -0700 (Mon, 19 May 2008)

Log Message:
-----------
Adding in VMU beeping support as written by Donald Haase (Tracker item #1961770).

Modified Paths:
--------------
    kos/kernel/arch/dreamcast/hardware/maple/vmu.c
    kos/kernel/arch/dreamcast/include/dc/maple/vmu.h

Modified: kos/kernel/arch/dreamcast/hardware/maple/vmu.c
===================================================================
--- kos/kernel/arch/dreamcast/hardware/maple/vmu.c	2008-05-20 02:22:51 UTC (rev 586)
+++ kos/kernel/arch/dreamcast/hardware/maple/vmu.c	2008-05-20 02:45:34 UTC (rev 587)
@@ -2,6 +2,7 @@
 
    vmu.c
    Copyright (C)2002,2003 Dan Potter
+   Copyright (C)2008 Donald Haase
  */
 
 #include <assert.h>
@@ -51,8 +52,8 @@
 /* These interfaces will probably change eventually, but for now they
    can stay the same */
 
-/* Completion callback for the draw_lcd function below */
-static void draw_lcd_callback(maple_frame_t * frame) {
+/* Callback that unlocks the frame, general use */
+static void vmu_gen_callback(maple_frame_t * frame) {
 	/* Unlock the frame for the next usage */
 	maple_frame_unlock(frame);
 
@@ -60,6 +61,47 @@
 	genwait_wake_all(frame);
 }
 
+/* Set the tone to be generated by the VMU's speaker.
+   Only last two bytes are used. Actual parameters unknown 
+   except that the last byte must be larger than the second 
+   to last byte. This might necessitate refactoring as the 
+   clock is a seperate device from the screen and storage. */
+int vmu_beep_raw(maple_device_t * dev, uint32 beep)	{
+	uint32 *	send_buf;
+
+	assert( dev != NULL );
+
+	/* Lock the frame */
+	if (maple_frame_lock(&dev->frame) < 0)
+		return MAPLE_EAGAIN;
+
+	/* Reset the frame */
+	maple_frame_init(&dev->frame);
+	send_buf = (uint32 *)dev->frame.recv_buf;
+	send_buf[0] = MAPLE_FUNC_CLOCK;
+	send_buf[1] = beep;		
+	dev->frame.cmd = MAPLE_COMMAND_SETCOND;
+	dev->frame.dst_port = dev->port;
+	dev->frame.dst_unit = dev->unit;
+	dev->frame.length = 2;
+	dev->frame.callback = vmu_gen_callback;
+	dev->frame.send_buf = send_buf;
+	maple_queue_frame(&dev->frame);
+
+	/* Wait for the timer to accept it */
+	if(genwait_wait(&dev->frame, "vmu_beep_raw", 500, NULL) < 0) {
+		if(dev->frame.state != MAPLE_FRAME_VACANT)	{
+			/* Something went wrong.... */
+			dev->frame.state = MAPLE_FRAME_VACANT;
+			dbglog(DBG_ERROR, "vmu_beep_raw: timeout to unit %c%c, beep: %lu\n",
+			       dev->port + 'A', dev->unit + '0', beep);
+			return MAPLE_ETIMEOUT;
+		}
+	}
+
+	return MAPLE_EOK;
+}
+
 /* Draw a 1-bit bitmap on the LCD screen (48x32). return a -1 if
    an error occurs */
 int vmu_draw_lcd(maple_device_t * dev, void *bitmap) {
@@ -81,7 +123,7 @@
 	dev->frame.dst_port = dev->port;
 	dev->frame.dst_unit = dev->unit;
 	dev->frame.length = 2 + 48;
-	dev->frame.callback = draw_lcd_callback;
+	dev->frame.callback = vmu_gen_callback;
 	dev->frame.send_buf = send_buf;
 	maple_queue_frame(&dev->frame);
 

Modified: kos/kernel/arch/dreamcast/include/dc/maple/vmu.h
===================================================================
--- kos/kernel/arch/dreamcast/include/dc/maple/vmu.h	2008-05-20 02:22:51 UTC (rev 586)
+++ kos/kernel/arch/dreamcast/include/dc/maple/vmu.h	2008-05-20 02:45:34 UTC (rev 587)
@@ -1,7 +1,8 @@
 /* KallistiOS ##version##
 
    dc/maple/vmu.h
-   (C)2000-2002 Jordan DeLong and Dan Potter
+   Copyright (C)2000-2002 Jordan DeLong and Dan Potter
+   Copyright (C)2008 Donald Haase
 
    $Id: vmu.h,v 1.3 2002/09/04 03:38:42 bardtx Exp $
 
@@ -15,6 +16,7 @@
 
 #include <arch/types.h>
 
+int vmu_beep_raw(maple_device_t * dev, uint32 beep);
 int vmu_draw_lcd(maple_device_t * dev, void *bitmap);
 int vmu_block_read(maple_device_t * dev, uint16 blocknum, uint8 *buffer);
 int vmu_block_write(maple_device_t * dev, uint16 blocknum, uint8 *buffer);


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