Merge branch 'master' into usrp_e_next

1 files changed, 172 insertions, 0 deletions

diff --git a/firmware/fx2/common/isr.h b/firmware/fx2/common/isr.h
new file mode 100644
index 000000000..856532890
--- /dev/null
+++ b/firmware/fx2/common/isr.h
@@ -0,0 +1,172 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2003 Free Software Foundation, Inc.
+ * 
+ * This file is part of GNU Radio
+ * 
+ * GNU Radio 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 3, or (at your option)
+ * any later version.
+ * 
+ * GNU Radio is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef _ISR_H_
+#define _ISR_H_
+
+/*
+ * ----------------------------------------------------------------
+ *	routines for managing interrupt services routines
+ * ----------------------------------------------------------------
+ */
+
+/*
+ * The FX2 has three discrete sets of interrupt vectors.
+ * The first set is the standard 8051 vector (13 8-byte entries).
+ * The second set is USB interrupt autovector (32 4-byte entries).
+ * The third set is the FIFO/GPIF autovector (14 4-byte entries).
+ *
+ * Since all the code we're running in the FX2 is ram based, we
+ * forego the typical "initialize the interrupt vectors at link time"
+ * strategy, in favor of calls at run time that install the correct
+ * pointers to functions.
+ */
+
+/*
+ * Standard Vector numbers
+ */
+
+#define	SV_INT_0		0x03
+#define	SV_TIMER_0		0x0b
+#define	SV_INT_1		0x13
+#define	SV_TIMER_1		0x1b
+#define	SV_SERIAL_0		0x23
+#define	SV_TIMER_2		0x2b
+#define	SV_RESUME		0x33
+#define	SV_SERIAL_1		0x3b
+#define	SV_INT_2		0x43		// (INT_2) points at USB autovector
+#define	SV_I2C			0x4b
+#define	SV_INT_4		0x53		// (INT_4) points at FIFO/GPIF autovector
+#define	SV_INT_5		0x5b
+#define	SV_INT_6		0x63
+
+#define	SV_MIN			SV_INT_0
+#define	SV_MAX			SV_INT_6
+
+/*
+ * USB Auto Vector numbers
+ */
+
+#define	UV_SUDAV		0x00
+#define	UV_SOF			0x04
+#define	UV_SUTOK		0x08
+#define	UV_SUSPEND		0x0c
+#define	UV_USBRESET		0x10
+#define	UV_HIGHSPEED		0x14
+#define	UV_EP0ACK		0x18
+#define	UV_SPARE_1C		0x1c
+#define	UV_EP0IN		0x20
+#define	UV_EP0OUT		0x24
+#define	UV_EP1IN		0x28
+#define	UV_EP1OUT		0x2c
+#define	UV_EP2			0x30
+#define	UV_EP4			0x34
+#define	UV_EP6			0x38
+#define	UV_EP8			0x3c
+#define	UV_IBN			0x40
+#define	UV_SPARE_44		0x44
+#define	UV_EP0PINGNAK		0x48
+#define	UV_EP1PINGNAK		0x4c
+#define	UV_EP2PINGNAK		0x50
+#define	UV_EP4PINGNAK		0x54
+#define	UV_EP6PINGNAK		0x58
+#define	UV_EP8PINGNAK		0x5c
+#define	UV_ERRLIMIT		0x60
+#define	UV_SPARE_64		0x64
+#define	UV_SPARE_68		0x68
+#define	UV_SPARE_6C		0x6c
+#define	UV_EP2ISOERR		0x70
+#define	UV_EP4ISOERR		0x74
+#define	UV_EP6ISOERR		0x78
+#define	UV_EP8ISOERR		0x7c
+
+#define	UV_MIN			UV_SUDAV
+#define	UV_MAX			UV_EP8ISOERR
+
+/*
+ * FIFO/GPIF Auto Vector numbers
+ */
+
+#define	FGV_EP2PF		0x00
+#define	FGV_EP4PF		0x04
+#define	FGV_EP6PF		0x08
+#define	FGV_EP8PF		0x0c
+#define	FGV_EP2EF		0x10
+#define	FGV_EP4EF		0x14
+#define	FGV_EP6EF		0x18
+#define	FGV_EP8EF		0x1c
+#define	FGV_EP2FF		0x20
+#define	FGV_EP4FF		0x24
+#define	FGV_EP6FF		0x28
+#define	FGV_EP8FF		0x2c
+#define	FGV_GPIFDONE		0x30
+#define	FGV_GPIFWF		0x34
+
+#define	FGV_MIN			FGV_EP2PF
+#define	FGV_MAX			FGV_GPIFWF
+
+
+/*
+ * Hook standard interrupt vector.
+ *
+ * vector_number is from the SV_<foo> list above.
+ * addr is the address of the interrupt service routine.
+ */
+void hook_sv (unsigned char vector_number, unsigned short addr);
+
+/*
+ * Hook usb interrupt vector.
+ *
+ * vector_number is from the UV_<foo> list above.
+ * addr is the address of the interrupt service routine.
+ */
+void hook_uv (unsigned char vector_number, unsigned short addr);
+
+/*
+ * Hook fifo/gpif interrupt vector.
+ *
+ * vector_number is from the FGV_<foo> list above.
+ * addr is the address of the interrupt service routine.
+ */
+void hook_fgv (unsigned char vector_number, unsigned short addr);
+
+/*
+ * One time call to enable autovectoring for both USB and FIFO/GPIF
+ */
+void setup_autovectors (void);
+
+
+/*
+ * Must be called in each usb interrupt handler
+ */
+#define	clear_usb_irq()			\
+	EXIF &= ~bmEXIF_USBINT;		\
+	INT2CLR = 0
+
+/*
+ * Must be calledin each fifo/gpif interrupt handler
+ */
+#define	clear_fifo_gpif_irq()		\
+	EXIF &= ~bmEXIF_IE4;		\
+	INT4CLR = 0
+
+#endif /* _ISR_H_ */