diff options
author | patacongo <patacongo@7fd9a85b-ad96-42d3-883c-3090e2eb8679> | 2011-12-19 19:24:09 +0000 |
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committer | patacongo <patacongo@7fd9a85b-ad96-42d3-883c-3090e2eb8679> | 2011-12-19 19:24:09 +0000 |
commit | add995c32e86f9de8fa8fc05172435332c25a895 (patch) | |
tree | 0191fde92a5c4dcd55a24b2aa760fa4c88713242 /nuttx/configs/teensy/src | |
download | px4-firmware-add995c32e86f9de8fa8fc05172435332c25a895.tar.gz px4-firmware-add995c32e86f9de8fa8fc05172435332c25a895.tar.bz2 px4-firmware-add995c32e86f9de8fa8fc05172435332c25a895.zip |
Completes coding of the PWM module
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4200 7fd9a85b-ad96-42d3-883c-3090e2eb8679
Diffstat (limited to 'nuttx/configs/teensy/src')
-rwxr-xr-x | nuttx/configs/teensy/src/Makefile | 103 | ||||
-rwxr-xr-x | nuttx/configs/teensy/src/teensy_internal.h | 101 | ||||
-rwxr-xr-x | nuttx/configs/teensy/src/up_boot.c | 93 | ||||
-rwxr-xr-x | nuttx/configs/teensy/src/up_leds.c | 194 | ||||
-rwxr-xr-x | nuttx/configs/teensy/src/up_spi.c | 202 | ||||
-rwxr-xr-x | nuttx/configs/teensy/src/up_usbstrg.c | 137 |
6 files changed, 830 insertions, 0 deletions
diff --git a/nuttx/configs/teensy/src/Makefile b/nuttx/configs/teensy/src/Makefile new file mode 100755 index 000000000..e27f02663 --- /dev/null +++ b/nuttx/configs/teensy/src/Makefile @@ -0,0 +1,103 @@ +############################################################################ +# configs/teensy/src/Makefile +# +# Copyright (C) 2011 Gregory Nutt. All rights reserved. +# Author: Gregory Nutt <spudmonkey@racsa.co.cr> +# +# 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. Neither the name NuttX nor the names of its contributors may be +# used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "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 THE +# COPYRIGHT OWNER OR CONTRIBUTORS 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. +# +############################################################################ + +-include $(TOPDIR)/Make.defs + +ASRCS = +CSRCS = up_boot.c + +ifeq ($(CONFIG_ARCH_LEDS),y) +CSRCS += up_leds.c +endif +ifeq ($(CONFIG_USBSTRG),y) +CSRCS += up_usbstrg.c +endif +ifeq ($(CONFIG_AVR_SPI),y) +CSRCS += up_spi.c +endif + +AOBJS = $(ASRCS:.S=$(OBJEXT)) +COBJS = $(CSRCS:.c=$(OBJEXT)) + +SRCS = $(ASRCS) $(CSRCS) +OBJS = $(AOBJS) $(COBJS) + +ARCH_SRCDIR = $(TOPDIR)/arch/$(CONFIG_ARCH)/src +ifeq ($(CONFIG_ARCH_AVR32),y) +ARCH_SUBDIR = avr32 +endif +ifeq ($(CONFIG_ARCH_AVR),y) +ARCH_SUBDIR = avr +endif + +ifeq ($(WINTOOL),y) + CFLAGS += -I "${shell cygpath -w $(TOPDIR)/sched}" + CFLAGS += -I "${shell cygpath -w $(ARCH_SRCDIR)/chip}" + CFLAGS += -I "${shell cygpath -w $(ARCH_SRCDIR)/common}" + CFLAGS += -I "${shell cygpath -w $(ARCH_SRCDIR)/$(ARCH_SUBDIR)}" +else + CFLAGS += -I "$(TOPDIR)/sched" + CFLAGS += -I "$(ARCH_SRCDIR)/chip" + CFLAGS += -I "$(ARCH_SRCDIR)/common" + CFLAGS += -I "$(ARCH_SRCDIR)/$(ARCH_SUBDIR)" +endif + +all: libboard$(LIBEXT) + +$(AOBJS): %$(OBJEXT): %.S + $(call ASSEMBLE, $<, $@) + +$(COBJS) $(LINKOBJS): %$(OBJEXT): %.c + $(call COMPILE, $<, $@) + +libboard$(LIBEXT): $(OBJS) + @( for obj in $(OBJS) ; do \ + $(call ARCHIVE, $@, $${obj}); \ + done ; ) + +.depend: Makefile $(SRCS) + @$(MKDEP) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep + @touch $@ + +depend: .depend + +clean: + @rm -f libboard$(LIBEXT) *~ .*.swp + $(call CLEAN) + +distclean: clean + @rm -f Make.dep .depend + +-include Make.dep diff --git a/nuttx/configs/teensy/src/teensy_internal.h b/nuttx/configs/teensy/src/teensy_internal.h new file mode 100755 index 000000000..c593c49ce --- /dev/null +++ b/nuttx/configs/teensy/src/teensy_internal.h @@ -0,0 +1,101 @@ +/****************************************************************************
+ * configs/teensy/src/pcblogic-internal.h
+ *
+ * Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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 THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS 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.
+ *
+ ****************************************************************************/
+
+#ifndef __CONFIGS_TEENSY_SRC_TEENSY_INTERNAL_H
+#define __CONFIGS_TEENSY_SRC_TEENSY_INTERNAL_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+/* Configuration ************************************************************/
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/****************************************************************************
+ * Inline Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+#ifdef __cplusplus
+#define EXTERN extern "C"
+extern "C" {
+#else
+#define EXTERN extern
+#endif
+
+/************************************************************************************
+ * Name: at90usb_spiinitialize
+ *
+ * Description:
+ * Called to configure SPI chip select GPIO pins for the Teensy++ 2.0 board.
+ *
+ ************************************************************************************/
+
+#ifdef CONFIG_AVR_SPI
+EXTERN void weak_function at90usb_spiinitialize(void);
+#endif
+
+/************************************************************************************
+ * Name: at90usb_ledinit
+ *
+ * Description:
+ * Configure on-board LEDs if LED support has been selected.
+ *
+ ************************************************************************************/
+
+#ifdef CONFIG_ARCH_LEDS
+EXTERN void at90usb_ledinit(void);
+#endif
+
+#undef EXTERN
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* __CONFIGS_TEENSY_SRC_TEENSY_INTERNAL_H */
diff --git a/nuttx/configs/teensy/src/up_boot.c b/nuttx/configs/teensy/src/up_boot.c new file mode 100755 index 000000000..ad054c702 --- /dev/null +++ b/nuttx/configs/teensy/src/up_boot.c @@ -0,0 +1,93 @@ +/************************************************************************************ + * configs/teensy/src/up_boot.c + * arch/mips/src/board/up_boot.c + * + * Copyright (C) 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * 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. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "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 THE + * COPYRIGHT OWNER OR CONTRIBUTORS 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. + * + ************************************************************************************/ + +/************************************************************************************ + * Included Files + ************************************************************************************/ + +#include <nuttx/config.h> + +#include <debug.h> + +#include <arch/board/board.h> + +#include "up_arch.h" +#include "up_internal.h" + +#include "at90usb_internal.h" +#include "teensy_internal.h" + +/************************************************************************************ + * Definitions + ************************************************************************************/ + +/************************************************************************************ + * Private Functions + ************************************************************************************/ + +/************************************************************************************ + * Public Functions + ************************************************************************************/ + +/************************************************************************************ + * Name: up_boardinitialize + * + * Description: + * All AT90USB architectures must provide the following entry point. This entry + * point is called early in the intitialization -- after all memory has been + * configured and mapped but before any devices have been initialized. + * + ************************************************************************************/ + +void up_boardinitialize(void) +{ + /* Configure SSP chip selects if 1) at least one SSP is enabled, and 2) the weak + * function at90usb_spiinitialize() has been brought into the link. + */ + +#ifdef CONFIG_AVR_SPI + if (at90usb_spiinitialize) + { + at90usb_spiinitialize(); + } +#endif + + /* Configure on-board LEDs if LED support has been selected. */ + +#ifdef CONFIG_ARCH_LEDS + at90usb_ledinit(); +#endif +} diff --git a/nuttx/configs/teensy/src/up_leds.c b/nuttx/configs/teensy/src/up_leds.c new file mode 100755 index 000000000..7aabae5c3 --- /dev/null +++ b/nuttx/configs/teensy/src/up_leds.c @@ -0,0 +1,194 @@ +/**************************************************************************** + * configs/teensy/src/up_leds.c + * arch/arm/src/board/up_leds.c + * + * Copyright (C) 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * 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. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "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 THE + * COPYRIGHT OWNER OR CONTRIBUTORS 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. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <stdbool.h> +#include <debug.h> +#include <avr/io.h> + +#include "up_arch.h" +#include "up_internal.h" + +#include "at90usb_internal.h" +#include "teensy_internal.h" + +#ifdef CONFIG_ARCH_LEDS + +/**************************************************************************** + * Definitions + ****************************************************************************/ + +/* Enables debug output from this file (needs CONFIG_DEBUG with + * CONFIG_DEBUG_VERBOSE too) + */ + +#undef LED_DEBUG /* Define to enable debug */ +#undef LED_VERBOSE /* Define to enable verbose debug */ + +#ifdef LED_DEBUG +# define leddbg lldbg +# ifdef LED_VERBOSE +# define ledvdbg lldbg +# else +# define ledvdbg(x...) +# endif +#else +# undef LED_VERBOSE +# define leddbg(x...) +# define ledvdbg(x...) +#endif + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +static bool g_ncoff; + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: at90usb_ledinit + ****************************************************************************/ + +void at90usb_ledinit(void) +{ + /* The Teensy's single LED is on Port D, Pin 6. Configur this pin as an + * output and turn it OFF. The "other" side of the LED is onnected to + * ground through a resistor. Therefore, a logic value of 0 should turn + * the LED off. + */ + + DDRD |= (1 << 6); + PORTD &= ~(1 << 6); + g_ncoff = true; +} + +/**************************************************************************** + * Name: up_ledon + ****************************************************************************/ + +void up_ledon(int led) +{ + /* ON OFF + * LED_STARTED 0 OFF ON (never happens) + * LED_HEAPALLOCATE 0 OFF ON (never happens) + * LED_IRQSENABLED 0 OFF ON (never happens) + * LED_STACKCREATED 1 ON ON (never happens) + * LED_INIRQ 2 OFF NC (momentary) + * LED_SIGNAL 2 OFF NC (momentary) + * LED_ASSERTION 2 OFF NC (momentary) + * LED_PANIC 0 OFF ON (1Hz flashing) + */ + + switch (led) + { + case 0: + /* The steady state is OFF */ + + g_ncoff = true; + + case 2: + /* Turn the LED off */ + + PORTD &= ~(1 << 6); + break; + + case 1: + /* The steady state is ON */ + + PORTD |= (1 << 6); + g_ncoff = false; + break; + + default: + return; + } +} + +/**************************************************************************** + * Name: up_ledoff + ****************************************************************************/ + +void up_ledoff(int led) +{ + /* ON OFF + * LED_STARTED 0 OFF ON (never happens) + * LED_HEAPALLOCATE 0 OFF ON (never happens) + * LED_IRQSENABLED 0 OFF ON (never happens) + * LED_STACKCREATED 1 ON ON (never happens) + * LED_INIRQ 2 OFF NC (momentary) + * LED_SIGNAL 2 OFF NC (momentary) + * LED_ASSERTION 2 OFF NC (momentary) + * LED_PANIC 0 OFF ON (1Hz flashing) + */ + + switch (led) + { + case 2: + /* If the "no-change" state is OFF, then turn the LED off */ + + if (g_ncoff) + { + PORTD &= ~(1 << 6); + break; + } + + /* Otherwise, fall through to turn the LED ON */ + + case 0: + case 1: + /* Turn the LED on */ + + PORTD |= (1 << 6); + break; + + default: + return; + } +} + +#endif /* CONFIG_ARCH_LEDS */ diff --git a/nuttx/configs/teensy/src/up_spi.c b/nuttx/configs/teensy/src/up_spi.c new file mode 100755 index 000000000..2ef0908f2 --- /dev/null +++ b/nuttx/configs/teensy/src/up_spi.c @@ -0,0 +1,202 @@ +/************************************************************************************
+ * configs/teensy/src/up_spi.c
+ * arch/arm/src/board/up_spi.c
+ *
+ * Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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 THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS 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.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+
+#include <nuttx/spi.h>
+#include <arch/board/board.h>
+#include <avr/io.h>
+
+#include "up_arch.h"
+#include "chip.h"
+#include "at90Usb_internal.h"
+#include "teensy_internal.h"
+
+#ifdef CONFIG_AVR_SPI
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+/* Teensy SPI Connection
+ *
+ * -- ---- -- ------------------------- -------
+ * J2 NAME PIN NAME PAD
+ * -- ---- -- ------------------------- -------
+ * 1 VIN -- Connected to USB +RV
+ * 2 GND -- Connected to USB GND
+ * 3 3V3 -- Not used ---
+ * 4 NC -- Not used
+ * 5 CS 10 (SS/PCINT0) PB0 Pad B0
+ * 6 DI 12 (PDI/PCINT2/MOSI) PB2 Pad B2
+ * 7 SCK 11 (PCINT1/SCLK) PB1 Pad B1
+ * 8 DO 13 (PDO/PCINT3/MISO) PB3 Pad B3
+ * 9 IRQ -- Not used ---
+ * 10 CD 14 (PCINT4/OC.2A) PB4 Pad B4
+ * 11 WP 15 (PCINT5/OC.1A) PB5 Pad B5
+ * -- ---- -- ------------------------- -------
+ */
+
+#define TEENSY_CS (1 << 0)
+#define TEENSY_CD (1 << 4)
+#define TEENSY_WP (1 << 5)
+
+/* The following enable debug output from this file (needs CONFIG_DEBUG too).
+ *
+ * CONFIG_SPI_DEBUG - Define to enable basic SSP debug
+ * CONFIG_SPI_VERBOSE - Define to enable verbose SSP debug
+ */
+
+#ifdef CONFIG_SPI_DEBUG
+# define sspdbg lldbg
+# ifdef CONFIG_SPI_VERBOSE
+# define sspvdbg lldbg
+# else
+# define sspvdbg(x...)
+# endif
+#else
+# undef CONFIG_SPI_VERBOSE
+# define sspdbg(x...)
+# define sspvdbg(x...)
+#endif
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: at90usb_spiinitialize
+ *
+ * Description:
+ * Called to configure SPI chip select GPIO pins for the LPC1766-STK.
+ *
+ ************************************************************************************/
+
+void weak_function at90usb_spiinitialize(void)
+{
+ /* The Teensy board has no dedicated SPI devices so we assume that SS is used
+ * for chip select:
+ *
+ * "When the SPI is configured as a Master (MSTR in SPCR is set), the user
+ * can determine the direction of the SS pin. If SS is configured as an
+ * output, the pin is a general output pin which does not affect the SPI
+ * system. ...
+ *
+ * "If SS is configured as an input, it must be held high to ensure Master
+ * SPI operation. If the SS pin is driven low by peripheral circuitry when
+ * the SPI is configured as a Master with the SS pin defined as an input,
+ * the SPI system interprets this as another master selecting the SPI ...
+ */
+
+ DDRB |= TEENSY_CS; /* B0 is an output */
+ PORTB |= TEENSY_CS; /* Low de-selects */
+ DDRB &= ~(TEENSY_CD | TEENSY_WP); /* B4 and B5 are inputs */
+ PORTB |= (TEENSY_CD | TEENSY_WP); /* Pull high */
+}
+
+/************************************************************************************
+ * Name: avr_spiselect and avr_spistatus
+ *
+ * Description:
+ * The external functions, avr_spiselect and avr_spistatus must be provided by
+ * board-specific logic. They are implementations of the select and status methods
+ * of the SPI interface defined by struct spi_ops_s (see include/nuttx/spi.h). All
+ * other methods (including up_spiinitialize()) are provided by common AVR logic.
+ * To use this common SPI logic on your board:
+ *
+ * 1. Provide logic in avr_sspinitialize() to configure SPI chip select pins.
+ * 2. Provide avr_spiselect() and avr_spistatus() functions in your board-specific
+ * logic. These functions will perform chip selection and status operations
+ * in the way your board is configured.
+ * 3. Add a calls to at90usb_spiinitialize() in your low level application
+ * initialization logic
+ * 4. The handle returned by up_spiinitialize() may then be used to bind the
+ * SPI driver to higher level logic (e.g., calling mmcsd_spislotinitialize(),
+ * for example, will bind the SPI driver to the SPI MMC/SD driver).
+ *
+ ************************************************************************************/
+
+void avr_spiselect(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected)
+{
+ sspdbg("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
+
+ /* Assert/de-assert the CS pin to the card */
+
+ if (selected)
+ {
+ PORTB &= ~TEENSY_CS;
+ }
+ else
+ {
+ PORTB |= TEENSY_CS;
+ }
+}
+
+uint8_t avr_spistatus(FAR struct spi_dev_s *dev, enum spi_dev_e devid)
+{
+ uint8_t ret = 0;
+ uint8_t regval = PINB;
+
+ /* Both the CD and WP pins are pull high by the AT90USB and will be
+ * grounded it a card is inserted or write protected.
+ */
+
+ if ((regval & TEENSY_CD) == 0)
+ {
+ ret |= SPI_STATUS_PRESENT;
+ }
+
+ if ((regval & TEENSY_WP) == 0)
+ {
+ ret |= SPI_STATUS_WRPROTECTED;
+ }
+
+ sspdbg("Returning %02x\n", ret);
+ return ret;
+}
+
+#endif /* CONFIG_AVR_SPI */
diff --git a/nuttx/configs/teensy/src/up_usbstrg.c b/nuttx/configs/teensy/src/up_usbstrg.c new file mode 100755 index 000000000..acc8cb071 --- /dev/null +++ b/nuttx/configs/teensy/src/up_usbstrg.c @@ -0,0 +1,137 @@ +/**************************************************************************** + * configs/teensy/src/up_usbstrg.c + * arch/arm/src/board/up_usbstrg.c + * + * Copyright (C) 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * Configure and register the AVR MMC/SD SPI block driver. + * + * 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. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "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 THE + * COPYRIGHT OWNER OR CONTRIBUTORS 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. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <stdio.h> +#include <debug.h> +#include <errno.h> + +#include <nuttx/spi.h> +#include <nuttx/mmcsd.h> + +#include "at90usb_internal.h" +#include "teensy_internal.h" + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +/* Configuration ************************************************************/ + +#ifndef CONFIG_EXAMPLES_USBSTRG_DEVMINOR1 +# define CONFIG_EXAMPLES_USBSTRG_DEVMINOR1 0 +#endif + +/* PORT and SLOT number probably depend on the board configuration */ + +#ifdef CONFIG_ARCH_BOARD_TEENSY +# undef AVR_MMCSDSPIPORTNO +# define AVR_MMCSDSPIPORTNO 0 +# undef AVR_MMCSDSLOTNO +# define AVR_MMCSDSLOTNO 0 +#else + /* Add configuration for new AVR boards here */ +# error "Unrecognized AVR board" +#endif + +/* Debug ********************************************************************/ + +#ifdef CONFIG_CPP_HAVE_VARARGS +# ifdef CONFIG_DEBUG +# define message(...) lib_lowprintf(__VA_ARGS__) +# define msgflush() +# else +# define message(...) printf(__VA_ARGS__) +# define msgflush() fflush(stdout) +# endif +#else +# ifdef CONFIG_DEBUG +# define message lib_lowprintf +# define msgflush() +# else +# define message printf +# define msgflush() fflush(stdout) +# endif +#endif + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: usbstrg_archinitialize + * + * Description: + * Perform architecture specific initialization + * + ****************************************************************************/ + +int usbstrg_archinitialize(void) +{ + FAR struct spi_dev_s *spi; + int ret; + + /* Get the SPI port */ + + message("Initializing SPI port\n"); + + spi = up_spiinitialize(AVR_MMCSDSPIPORTNO); + if (!spi) + { + message("up_spiinitialize failed\n"); + return -ENODEV; + } + + /* Bind the SPI port to the slot */ + + message("Binding SPI port to MMC/SD slot\n"); + + ret = mmcsd_spislotinitialize(CONFIG_EXAMPLES_USBSTRG_DEVMINOR1, AVR_MMCSDSLOTNO, spi); + if (ret < 0) + { + message("mmcsd_spislotinitialize failed: %d\n", ret); + return ret; + } + + return OK; +} |