Disabled external gits

cs309-psoc/lab_2_1/sw/nios/application/joysticks/joysticks.c

@@ -0,0 +1,79 @@
+#include "joysticks.h"
+
+#define JOYSTICK_RIGHT_VRY_MCP3204_CHANNEL (0)
+#define JOYSTICK_RIGHT_VRX_MCP3204_CHANNEL (1)
+#define JOYSTICK_LEFT_VRY_MCP3204_CHANNEL  (2)
+#define JOYSTICK_LEFT_VRX_MCP3204_CHANNEL  (3)
+
+/**
+ * joysticks_inst
+ *
+ * Instantiate a joysticks device structure.
+ *
+ * @param base Base address of the MCP3204 component connected to the joysticks.
+ */
+joysticks_dev joysticks_inst(void *mcp3204_base) {
+    joysticks_dev dev;
+    dev.mcp3204 = mcp3204_inst((void *) mcp3204_base);
+
+    return dev;
+}
+
+/**
+ * joysticks_init
+ *
+ * Initializes the joysticks device.
+ *
+ * @param dev joysticks device structure.
+ */
+void joysticks_init(joysticks_dev *dev) {
+    mcp3204_init(&(dev->mcp3204));
+}
+
+/**
+ * joysticks_read_left_vertical
+ *
+ * Returns the vertical position of the left joystick. Return value ranges
+ * between JOYSTICKS_MIN_VALUE and JOYSTICKS_MAX_VALUE.
+ *
+ * @param dev joysticks device structure.
+ */
+uint32_t joysticks_read_left_vertical(joysticks_dev *dev) {
+	return JOYSTICKS_MAX_VALUE - mcp3204_read(&dev->mcp3204,LV_CHANNEL);
+}
+
+/**
+ * joysticks_read_left_horizontal
+ *
+ * Returns the horizontal position of the left joystick. Return value ranges
+ * between JOYSTICKS_MIN_VALUE and JOYSTICKS_MAX_VALUE.
+ *
+ * @param dev joysticks device structure.
+ */
+uint32_t joysticks_read_left_horizontal(joysticks_dev *dev) {
+	return mcp3204_read(&dev->mcp3204,LH_CHANNEL);
+}
+
+/**
+ * joysticks_read_right_vertical
+ *
+ * Returns the vertical position of the right joystick. Return value ranges
+ * between JOYSTICKS_MIN_VALUE and JOYSTICKS_MAX_VALUE.
+ *
+ * @param dev joysticks device structure.
+ */
+uint32_t joysticks_read_right_vertical(joysticks_dev *dev) {
+	return JOYSTICKS_MAX_VALUE - mcp3204_read(&dev->mcp3204,RV_CHANNEL);
+}
+
+/**
+ * joysticks_read_right_horizontal
+ *
+ * Returns the horizontal position of the left joystick. Return value ranges
+ * between JOYSTICKS_MIN_VALUE and JOYSTICKS_MAX_VALUE.
+ *
+ * @param dev joysticks device structure.
+ */
+uint32_t joysticks_read_right_horizontal(joysticks_dev *dev) {
+	return mcp3204_read(&dev->mcp3204,RH_CHANNEL);
+}

cs309-psoc/lab_2_1/sw/nios/application/joysticks/joysticks.h

@@ -0,0 +1,33 @@
+#ifndef __JOYSTICKS_H__
+#define __JOYSTICKS_H__
+
+#include "mcp3204/mcp3204.h"
+
+/* joysticks device structure */
+typedef struct joysticks_dev {
+    mcp3204_dev mcp3204; /* MCP3204 device handle */
+} joysticks_dev;
+
+/*******************************************************************************
+ *  Public API
+ ******************************************************************************/
+
+#define JOYSTICKS_MIN_VALUE (MCP3204_MIN_VALUE)
+#define JOYSTICKS_MAX_VALUE (MCP3204_MAX_VALUE)
+
+#define LV_CHANNEL 0
+#define LH_CHANNEL 1
+#define RV_CHANNEL 2
+#define RH_CHANNEL 3
+#define CC_CHANNEL "this is a joke"
+
+joysticks_dev joysticks_inst(void *mcp3204_base);
+
+void joysticks_init(joysticks_dev *dev);
+
+uint32_t joysticks_read_left_vertical(joysticks_dev *dev);
+uint32_t joysticks_read_left_horizontal(joysticks_dev *dev);
+uint32_t joysticks_read_right_vertical(joysticks_dev *dev);
+uint32_t joysticks_read_right_horizontal(joysticks_dev *dev);
+
+#endif /* __JOYSTICKS_H__ */

cs309-psoc/lab_2_1/sw/nios/application/joysticks/mcp3204/mcp3204.c

@@ -0,0 +1,50 @@
+#include <assert.h>
+#include <io.h>
+
+#include "mcp3204.h"
+#include "mcp3204_regs.h"
+
+#define MCP3204_NUM_CHANNELS (4)
+
+/**
+ * mcp3204_inst
+ *
+ * Instantiate a mcp3204 device structure.
+ *
+ * @param base Base address of the component.
+ */
+mcp3204_dev mcp3204_inst(void *base) {
+    mcp3204_dev dev;
+    dev.base = base;
+
+    return dev;
+}
+
+/**
+ * mcp3204_init
+ *
+ * Initializes the mcp3204 device.
+ *
+ * @param dev mcp3204 device structure.
+ */
+void mcp3204_init(mcp3204_dev *dev) {
+    return;
+}
+
+/**
+ * mcp3204_read
+ *
+ * Reads the register corresponding to the supplied channel parameter.
+ *
+ * @param dev mcp3204 device structure.
+ * @param channel channel to be read
+ */
+uint32_t mcp3204_read(mcp3204_dev *dev, uint32_t channel) {
+	switch(channel){
+		case 0: return IORD_32DIRECT(dev->base, MCP3204_CHANNEL_0_OFST);
+		case 1: return IORD_32DIRECT(dev->base, MCP3204_CHANNEL_1_OFST);
+		case 2: return IORD_32DIRECT(dev->base, MCP3204_CHANNEL_2_OFST);
+		case 3: return IORD_32DIRECT(dev->base, MCP3204_CHANNEL_3_OFST);
+		default: return 0;
+	}
+}

cs309-psoc/lab_2_1/sw/nios/application/joysticks/mcp3204/mcp3204.h

@@ -0,0 +1,23 @@
+#ifndef __MCP3204_H__
+#define __MCP3204_H__
+
+#include <stdint.h>
+
+/* mcp3204 device structure */
+typedef struct mcp3204_dev {
+    void *base; /* Base address of component */
+} mcp3204_dev;
+
+/*******************************************************************************
+ *  Public API
+ ******************************************************************************/
+
+#define MCP3204_MIN_VALUE (0)
+#define MCP3204_MAX_VALUE (4095)
+
+mcp3204_dev mcp3204_inst(void *base);
+
+void mcp3204_init(mcp3204_dev *dev);
+uint32_t mcp3204_read(mcp3204_dev *dev, uint32_t channel);
+
+#endif /* __MCP3204_H__ */

cs309-psoc/lab_2_1/sw/nios/application/joysticks/mcp3204/mcp3204_regs.h

@@ -0,0 +1,9 @@
+#ifndef __MCP3204_REGS_H__
+#define __MCP3204_REGS_H__
+
+#define MCP3204_CHANNEL_0_OFST (0 * 4) /* RO */
+#define MCP3204_CHANNEL_1_OFST (1 * 4) /* RO */
+#define MCP3204_CHANNEL_2_OFST (2 * 4) /* RO */
+#define MCP3204_CHANNEL_3_OFST (3 * 4) /* RO */
+
+#endif /* __MCP3204_REGS_H__ */