Diff: targets/hal/TARGET_Atmel/TARGET_SAM_CortexM0P/drivers/port/port.c

Revision:

15:a81a8d6c1dfe

diff -r d797fbdad187 -r a81a8d6c1dfe targets/hal/TARGET_Atmel/TARGET_SAM_CortexM0P/drivers/port/port.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/hal/TARGET_Atmel/TARGET_SAM_CortexM0P/drivers/port/port.c	Wed Nov 04 16:30:11 2015 +0000
@@ -0,0 +1,109 @@
+/**
+ * \file
+ *
+ * \brief SAM GPIO Port Driver
+ *
+ * Copyright (C) 2012-2015 Atmel Corporation. All rights reserved.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * 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. The name of Atmel may not be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * 4. This software may only be redistributed and used in connection with an
+ *    Atmel microcontroller product.
+ *
+ * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
+ * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
+ *
+ * \asf_license_stop
+ *
+ */
+/*
+ * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
+ */
+#include <port.h>
+
+/**
+ *  \brief Writes a Port pin configuration to the hardware module.
+ *
+ *  Writes out a given configuration of a Port pin configuration to the hardware
+ *  module.
+ *
+ *  \note If the pin direction is set as an output, the pull-up/pull-down input
+ *        configuration setting is ignored.
+ *
+ *  \param[in] gpio_pin  Index of the GPIO pin to configure
+ *  \param[in] config    Configuration settings for the pin
+ */
+void port_pin_set_config(
+    const uint8_t gpio_pin,
+    const struct port_config *const config)
+{
+    /* Sanity check arguments */
+    Assert(config);
+
+    struct system_pinmux_config pinmux_config;
+    system_pinmux_get_config_defaults(&pinmux_config);
+
+    pinmux_config.mux_position = SYSTEM_PINMUX_GPIO;
+    pinmux_config.direction    = (enum system_pinmux_pin_dir)config->direction;
+    pinmux_config.input_pull   = (enum system_pinmux_pin_pull)config->input_pull;
+    pinmux_config.powersave    = config->powersave;
+
+    system_pinmux_pin_set_config(gpio_pin, &pinmux_config);
+}
+
+/**
+ *  \brief Writes a Port group configuration group to the hardware module.
+ *
+ *  Writes out a given configuration of a Port group configuration to the
+ *  hardware module.
+ *
+ *  \note If the pin direction is set as an output, the pull-up/pull-down input
+ *        configuration setting is ignored.
+ *
+ *  \param[out] port    Base of the PORT module to write to
+ *  \param[in]  mask    Mask of the port pin(s) to configure
+ *  \param[in]  config  Configuration settings for the pin group
+ */
+void port_group_set_config(
+    PortGroup *const port,
+    const uint32_t mask,
+    const struct port_config *const config)
+{
+    /* Sanity check arguments */
+    Assert(port);
+    Assert(config);
+
+    struct system_pinmux_config pinmux_config;
+    system_pinmux_get_config_defaults(&pinmux_config);
+
+    pinmux_config.mux_position = SYSTEM_PINMUX_GPIO;
+    pinmux_config.direction    = (enum system_pinmux_pin_dir)config->direction;
+    pinmux_config.input_pull   = (enum system_pinmux_pin_pull)config->input_pull;
+    pinmux_config.powersave    = config->powersave;
+
+    system_pinmux_group_set_config(port, mask, &pinmux_config);
+}