labsw/sw/: basic firmware - just enumerates

labsw/fw/Makefile

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+#
+# labsw/Makefile - Makefile for the Lab Switch firmware
+#
+# Written 2011 by Werner Almesberger
+# Copyright 2011 Werner Almesberger
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+
+
+MAIN = labsw
+OBJS = $(MAIN) usb descr # version ep0
+
+F32XBASE = ../../../f32xbase
+
+include $(F32XBASE)/fw/common/Makefile.system
+include $(F32XBASE)/fw/common/Makefile.common
+
+CFLAGS += -I../common -I../include
+LDFLAGS += --code-size $(PAYLOAD_SIZE) --code-loc $(PAYLOAD_START)
+
+USB_ID = $(shell \
+  ( echo '\#include "usb-id.h"'; echo USB_VENDOR:USB_PRODUCT; ) | \
+  cpp | sed '/^ *$$/d;/^\#/d' )
+
+.PHONY:		dfu
+
+# hack: for now, we just reuse the boot loader from cntr
+USB_ID = 20b7:cb72
+
+dfu:
+		dfu-util -d $(USB_ID) -D $(MAIN).bin

labsw/fw/config.h

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+#include "usb-id.h"

labsw/fw/descr.c

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+/*
+ * descr.c - USB descriptors
+ *
+ * Written 2008-2011 by Werner Almesberger
+ * Copyright 2008-2011 Werner Almesberger
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+
+#include "usb.h"
+
+#include "config.h"
+
+
+/*
+ * Device descriptor
+ */
+
+const uint8_t device_descriptor[18] = {
+	18,			/* bLength */
+	USB_DT_DEVICE,		/* bDescriptorType */
+	LE(0x200),		/* bcdUSB */
+	USB_CLASS_VENDOR_SPEC,	/* bDeviceClass */
+	0x00,			/* bDeviceSubClass */
+	0x00,			/* bDeviceProtocol */
+	EP0_SIZE,		/* bMaxPacketSize */
+	LE(USB_VENDOR),		/* idVendor */
+	LE(USB_PRODUCT),	/* idProduct */
+	LE(0x0001),		/* bcdDevice */
+	0,			/* iManufacturer */
+	0,			/* iProduct */
+	0,			/* iSerialNumber */
+	1			/* bNumConfigurations */
+};
+
+
+/*
+ * Our configuration
+ *
+ * We're always bus-powered.
+ */
+
+const uint8_t config_descriptor[] = {
+	9,			/* bLength */
+	USB_DT_CONFIG,		/* bDescriptorType */
+	LE(9+9),		/* wTotalLength */
+	1,			/* bNumInterfaces */
+	1,			/* bConfigurationValue (> 0 !) */
+	0,			/* iConfiguration */
+	USB_ATTR_BUS_POWERED,	/* bmAttributes */
+	15,			/* bMaxPower */
+
+	/* Interface #0 */
+
+	9,			/* bLength */
+	USB_DT_INTERFACE,	/* bDescriptorType */
+	0,			/* bInterfaceNumber */
+	0,			/* bAlternateSetting */
+	0,			/* bNumEndpoints */
+	USB_CLASS_VENDOR_SPEC,	/* bInterfaceClass */
+	0,			/* bInterfaceSubClass */
+	0,			/* bInterfaceProtocol */
+	0,			/* iInterface */
+};

labsw/fw/labsw.c

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+/*
+ * labsw.c - Lab Switch initialization and main loop
+ *
+ * Written 2011 by Werner Almesberger
+ * Copyright 2011 Werner Almesberger
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+
+#include <stdint.h>
+
+#include "regs.h"
+#include "usb.h"
+
+
+static void init_io(void)
+{
+}
+
+
+void main(void)
+{
+	init_io();
+
+	usb_init();
+//	ep0_init();
+
+	while (1) {
+		usb_poll();
+	}
+}

labsw/fw/regs.h

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+#include "regs-f320.h"

labsw/fw/usb-id.h

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+/*
+ * labsw/usb-id.h - USB vendor and product ID
+ *
+ * Written 2011 by Werner Almesberger
+ * Copyright 2011 Werner Almesberger
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+
+#ifndef USB_ID_H
+#define USB_ID_H
+
+/*
+ *  Platform-specific settings
+ *
+ * USB_VENDOR = Qi Hardware
+ * USB_PRODUCT = 7ab5
+ *
+ * 7ab5 is "LABS" in "leet", http://en.wikipedia.org/wiki/Leet
+ */
+
+#define USB_VENDOR	0x20b7	/* Qi Hardware */
+#define USB_PRODUCT	0x7ab5	/* Lab Switch */
+
+#endif /* !USB_ID_H */