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authorpatacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>2010-09-03 14:57:29 +0000
committerpatacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>2010-09-03 14:57:29 +0000
commit8ca0ad330fc52787466a638e93707829ce748672 (patch)
treed58f4eb62cd5720df4f41995a8cf042d44da5e91 /nuttx/configs/lm3s8962-ek/src/up_oled.c
parented15280593b459b87e6de35aa26a6db9ecf2d0c9 (diff)
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Add configuration for lm3s8962-ek
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2913 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/configs/lm3s8962-ek/src/up_oled.c')
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1 files changed, 162 insertions, 0 deletions
diff --git a/nuttx/configs/lm3s8962-ek/src/up_oled.c b/nuttx/configs/lm3s8962-ek/src/up_oled.c
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+/****************************************************************************
+ * config/lm3s8962-ek/src/up_oled.c
+ * arch/arm/src/board/up_oled.c
+ *
+ * Copyright (C) 2010 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 <stdio.h>
+#include <debug.h>
+#include <errno.h>
+
+#include <nuttx/spi.h>
+#include <nuttx/lcd.h>
+#include <nuttx/p14201.h>
+
+#include "lm3s_internal.h"
+#include "lm3s8962ek_internal.h"
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+/* Define the CONFIG_LCD_RITDEBUG to enable detailed debug output (stuff you
+ * would never want to see unless you are debugging this file).
+ *
+ * Verbose debug must also be enabled
+ */
+
+#ifndef CONFIG_DEBUG
+# undef CONFIG_DEBUG_VERBOSE
+# undef CONFIG_DEBUG_GRAPHICS
+#endif
+
+#ifndef CONFIG_DEBUG_VERBOSE
+# undef CONFIG_LCD_RITDEBUG
+#endif
+
+#ifdef CONFIG_LCD_RITDEBUG
+# define ritdbg(format, arg...) vdbg(format, ##arg)
+# define oleddc_dumpgpio(m) lm3s_dumpgpio(OLEDDC_GPIO, m)
+# define oledcs_dumpgpio(m) lm3s_dumpgpio(OLEDCS_GPIO, m)
+#else
+# define ritdbg(x...)
+# define oleddc_dumpgpio(m)
+# define oledcs_dumpgpio(m)
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_nxdrvinit
+ *
+ * Description:
+ * Called NX initialization logic to configure the OLED.
+ *
+ ****************************************************************************/
+
+FAR struct lcd_dev_s *up_nxdrvinit(unsigned int devno)
+{
+ FAR struct spi_dev_s *spi;
+ FAR struct lcd_dev_s *dev;
+
+ /* Configure the OLED GPIOs */
+
+ oledcs_dumpgpio("up_nxdrvinit: After OLEDCS setup");
+ oleddc_dumpgpio("up_nxdrvinit: On entry");
+
+ lm3s_configgpio(OLEDDC_GPIO); /* PC7: OLED display data/control select (D/Cn) */
+ lm3s_configgpio(OLEDEN_GPIO); /* PC6: Enable +15V needed by OLED (EN+15V) */
+
+ oleddc_dumpgpio("up_nxdrvinit: After OLEDDC/EN setup");
+
+ /* Get the SSI port (configure as a Freescale SPI port) */
+
+ spi = up_spiinitialize(0);
+ if (!spi)
+ {
+ glldbg("Failed to initialize SSI port 0\n");
+ }
+ else
+ {
+ /* Bind the SSI port to the OLED */
+
+ dev = rit_initialize(spi, devno);
+ if (!dev)
+ {
+ glldbg("Failed to bind SSI port 0 to OLED %d: %d\n", devno);
+ }
+ else
+ {
+ gllvdbg("Bound SSI port 0 to OLED %d\n", devno);
+
+ /* And turn the OLED on (CONFIG_LCD_MAXPOWER should be 1) */
+
+ (void)dev->setpower(dev, CONFIG_LCD_MAXPOWER);
+ return dev;
+ }
+ }
+ return NULL;
+}
+
+/******************************************************************************
+ * Name: rit_seldata
+ *
+ * Description:
+ * Set or clear the SD1329 D/Cn bit to select data (true) or command
+ * (false). This function must be provided by platform-specific logic.
+ *
+ * Input Parameters:
+ *
+ * devno - A value in the range of 0 throuh CONFIG_P14201_NINTERFACES-1.
+ * This allows support for multiple OLED devices.
+ * data - true: select data; false: select command
+ *
+ * Returned Value:
+ * None
+ *
+ ******************************************************************************/
+
+void rit_seldata(unsigned int devno, bool data)
+{
+ /* Set GPIO to 1 for data, 0 for command */
+
+ lm3s_gpiowrite(OLEDDC_GPIO, data);
+}