Raspberry Pi implementation for the RTEMS GPIO API.

Added support for the new RTEMS GPIO API functions.

Test cases can be found in https://github.com/asuol/RTEMS_rpi_testing/tree/master/GPIO

1 files changed, 136 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/arm/raspberrypi/gpio/gpio-interfaces-pi1-rev2.c b/c/src/lib/libbsp/arm/raspberrypi/gpio/gpio-interfaces-pi1-rev2.c
new file mode 100644
index 0000000000..a958e0dc8e
--- /dev/null
+++ b/c/src/lib/libbsp/arm/raspberrypi/gpio/gpio-interfaces-pi1-rev2.c
@@ -0,0 +1,136 @@
+/**
+ * @file gpio-interfaces-pi1-rev2.c
+ *
+ * @ingroup raspberrypi_gpio
+ *
+ * @brief Raspberry PI 1 rev2 GPIO interface definitions.
+ */
+
+/*
+ *  Copyright (c) 2015 Andre Marques <andre.lousa.marques at gmail.com>
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+
+#define JTAG_PIN_COUNT 5
+#define SPI_PIN_COUNT 5
+#define I2C_PIN_COUNT 2
+
+const rtems_gpio_pin_conf jtag_config[JTAG_PIN_COUNT] = {
+  { /*arm_tdi */
+    .pin_number = 4,
+    .function = BSP_SPECIFIC,
+    .pull_mode = NO_PULL_RESISTOR,
+    .interrupt = NULL,
+    .output_enabled = FALSE,
+    .logic_invert = FALSE,
+    .bsp_specific = &alt_func_def[5]
+  },
+  { /* arm_trst */
+    .pin_number = 22,
+    .function = BSP_SPECIFIC,
+    .pull_mode = NO_PULL_RESISTOR,
+    .interrupt = NULL,
+    .output_enabled = FALSE,
+    .logic_invert = FALSE,
+    .bsp_specific = &alt_func_def[4]
+  },
+  { /* arm_tdo */
+    .pin_number = 24,
+    .function = BSP_SPECIFIC,
+    .pull_mode = NO_PULL_RESISTOR,
+    .interrupt = NULL,
+    .output_enabled = FALSE,
+    .logic_invert = FALSE,
+    .bsp_specific = &alt_func_def[4]
+  },
+  { /* arm_tck */
+    .pin_number = 25,
+    .function = BSP_SPECIFIC,
+    .pull_mode = NO_PULL_RESISTOR,
+    .interrupt = NULL,
+    .output_enabled = FALSE,
+    .logic_invert = FALSE,
+    .bsp_specific = &alt_func_def[4]
+  },
+  { /* arm_tms */
+    .pin_number = 27,
+    .function = BSP_SPECIFIC,
+    .pull_mode = NO_PULL_RESISTOR,
+    .interrupt = NULL,
+    .output_enabled = FALSE,
+    .logic_invert = FALSE,
+    .bsp_specific = &alt_func_def[4]
+  }
+};
+
+const rtems_gpio_pin_conf spi_config[SPI_PIN_COUNT] = {
+  { /* spi_miso */
+    .pin_number = 7,
+    .function = BSP_SPECIFIC,
+    .pull_mode = NO_PULL_RESISTOR,
+    .interrupt = NULL,
+    .output_enabled = FALSE,
+    .logic_invert = FALSE,
+    .bsp_specific = &alt_func_def[0]
+  },
+  { /* spi_mosi */
+    .pin_number = 8,
+    .function = BSP_SPECIFIC,
+    .pull_mode = NO_PULL_RESISTOR,
+    .interrupt = NULL,
+    .output_enabled = FALSE,
+    .logic_invert = FALSE,
+    .bsp_specific = &alt_func_def[0]
+  },
+  { /* spi_sclk */
+    .pin_number = 9,
+    .function = BSP_SPECIFIC,
+    .pull_mode = NO_PULL_RESISTOR,
+    .interrupt = NULL,
+    .output_enabled = FALSE,
+    .logic_invert = FALSE,
+    .bsp_specific = &alt_func_def[0]
+  },
+  { /* spi_ce_0 */
+    .pin_number = 10,
+    .function = BSP_SPECIFIC,
+    .pull_mode = NO_PULL_RESISTOR,
+    .interrupt = NULL,
+    .output_enabled = FALSE,
+    .logic_invert = FALSE,
+    .bsp_specific = &alt_func_def[0]
+  },
+  { /* spi_ce_1 */
+    .pin_number = 11,
+    .function = BSP_SPECIFIC,
+    .pull_mode = NO_PULL_RESISTOR,
+    .interrupt = NULL,
+    .output_enabled = FALSE,
+    .logic_invert = FALSE,
+    .bsp_specific = &alt_func_def[0]
+  }
+};
+
+const rtems_gpio_pin_conf i2c_config[I2C_PIN_COUNT] = {
+  { /* i2c_sda */
+    .pin_number = 2,
+    .function = BSP_SPECIFIC,
+    .pull_mode = PULL_UP,
+    .interrupt = NULL,
+    .output_enabled = FALSE,
+    .logic_invert = FALSE,
+    .bsp_specific = &alt_func_def[0]
+  },
+  { /* i2c_scl */
+    .pin_number = 3,
+    .function = BSP_SPECIFIC,
+    .pull_mode = PULL_UP,
+    .interrupt = NULL,
+    .output_enabled = FALSE,
+    .logic_invert = FALSE,
+    .bsp_specific = &alt_func_def[0]
+  }
+};