Pinmux : Import from FreeBSD

1 files changed, 80 insertions, 0 deletions

diff --git a/freebsd/sys/arm/ti/ti_pinmux.h b/freebsd/sys/arm/ti/ti_pinmux.h
new file mode 100644
index 00000000..c299c494
--- /dev/null
+++ b/freebsd/sys/arm/ti/ti_pinmux.h
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2010
+ *	Ben Gray <ben.r.gray@gmail.com>.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Ben Gray.
+ * 4. The name of the company nor the name of the author may be used to
+ *    endorse or promote products derived from this software without specific
+ *    prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY BEN GRAY ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL BEN GRAY BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+
+/**
+ *	Functions to configure the PIN multiplexing on the chip.
+ *
+ *	This is different from the GPIO module in that it is used to configure the
+ *	pins between modules not just GPIO input output.
+ *
+ */
+#ifndef _TI_PINMUX_H_
+#define _TI_PINMUX_H_
+
+struct ti_pinmux_padconf {
+	uint16_t    reg_off;
+	uint16_t    gpio_pin;
+	uint16_t    gpio_mode;
+	const char  *ballname;
+	const char  *muxmodes[8];
+};
+
+struct ti_pinmux_padstate {
+	const char  *state;
+	uint16_t    reg;
+};
+
+struct ti_pinmux_device {
+	uint16_t		padconf_muxmode_mask;
+	uint16_t		padconf_sate_mask;
+	const struct ti_pinmux_padstate	*padstate;
+	const struct ti_pinmux_padconf	*padconf;
+};
+
+struct ti_pinmux_softc {
+	device_t		sc_dev;
+	struct resource *	sc_res[4];
+	bus_space_tag_t		sc_bst;
+	bus_space_handle_t	sc_bsh;
+};
+
+int ti_pinmux_padconf_set(const char *padname, const char *muxmode, 
+    unsigned int state);
+int ti_pinmux_padconf_get(const char *padname, const char **muxmode,
+    unsigned int *state);
+int ti_pinmux_padconf_set_gpiomode(uint32_t gpio, unsigned int state);
+int ti_pinmux_padconf_get_gpiomode(uint32_t gpio, unsigned int *state);
+
+#endif /* _TI_SCM_H_ */