Disabled external gits

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

@@ -0,0 +1,118 @@
+#include <assert.h>
+#include <inttypes.h>
+#include <io.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include "lepton_regs.h"
+#include "lepton.h"
+
+/**
+ * lepton_inst
+ *
+ * Instantiate a lepton device structure.
+ *
+ * @param base Base address of the component.
+ */
+lepton_dev lepton_inst(void *base) {
+    lepton_dev dev;
+    dev.base = base;
+
+    return dev;
+}
+
+/**
+ * lepton_init
+ *
+ * Initializes the lepton device.
+ *
+ * @param dev lepton device structure.
+ */
+void lepton_init(lepton_dev *dev) {
+    return;
+}
+
+/**
+ * lepton_start_capture
+ *
+ * Instructs the device to start the frame capture process.
+ *
+ * @param dev lepton device structure.
+ */
+void lepton_start_capture(lepton_dev *dev) {
+    IOWR_16DIRECT(dev->base, LEPTON_REGS_COMMAND_OFST, 0x1);
+}
+
+/**
+ * lepton_error_check
+ *
+ * @abstract Check for errors at the device level.
+ * @param dev lepton device structure.
+ * @return true if there was an error, and false otherwise.
+ */
+bool lepton_error_check(lepton_dev *dev) {
+    return (IORD_16DIRECT(dev->base, LEPTON_REGS_STATUS_OFST) & 0x2) != 0;
+}
+
+/**
+ * lepton_wait_until_eof
+ *
+ * Waits until the frame being captured has been fully received and saved in the
+ * internal memory.
+ *
+ * @param dev lepton device structure.
+ */
+void lepton_wait_until_eof(lepton_dev *dev) {
+    while (IORD_16DIRECT(dev->base, LEPTON_REGS_STATUS_OFST) & 0x1);
+}
+
+/**
+ * lepton_save_capture
+ *
+ * Saves the captured frame on the host filesystem under the supplied filename.
+ * The frame will be saved in PGM format.
+ *
+ * @param dev lepton device structure.
+ * @param adjusted Setting this parameter to false will cause RAW sensor data to
+ *                 be written to the file.
+ *                 Setting this parameter to true will cause a preprocessed image
+ *                 (with a stretched dynamic range) to be saved to the file.
+ *
+ * @param fname the output file name.
+ */
+void lepton_save_capture(lepton_dev *dev, bool adjusted, const char *fname) {
+    FILE *fp = fopen(fname, "w");
+    assert(fp);
+
+    const uint8_t num_rows = 60;
+    const uint8_t num_cols = 80;
+
+    uint16_t offset = LEPTON_REGS_RAW_BUFFER_OFST;
+    uint16_t max_value = IORD_16DIRECT(dev->base, LEPTON_REGS_MAX_OFST);
+    if (adjusted) {
+        offset = LEPTON_REGS_ADJUSTED_BUFFER_OFST;
+        max_value = 0x3fff;
+    }
+
+    /* Write PGM header */
+    fprintf(fp, "P2\n%" PRIu8 " %" PRIu8 "\n%" PRIu16, num_cols, num_rows, max_value);
+
+    /* Write body */
+    uint8_t row = 0;
+    for (row = 0; row < num_rows; ++row) {
+        fprintf(fp, "\n");
+
+        uint8_t col = 0;
+        for (col = 0; col < num_cols; ++col) {
+            if (col > 0) {
+                fprintf(fp, " ");
+            }
+
+            uint16_t current_ofst = offset + (row * num_cols + col) * sizeof(uint16_t);
+            uint16_t pix_value = IORD_16DIRECT(dev->base, current_ofst);
+            fprintf(fp, "%" PRIu16, pix_value);
+        }
+    }
+
+    assert(!fclose(fp));
+}

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

@@ -0,0 +1,23 @@
+#ifndef __LEPTON_H__
+#define __LEPTON_H__
+
+#include <stdbool.h>
+
+/* lepton device structure */
+typedef struct {
+    void *base; /* Base address of the component */
+} lepton_dev;
+
+/*******************************************************************************
+ *  Public API
+ ******************************************************************************/
+
+lepton_dev lepton_inst(void *base);
+
+void lepton_init(lepton_dev *dev);
+void lepton_start_capture(lepton_dev *dev);
+void lepton_wait_until_eof(lepton_dev *dev);
+bool lepton_error_check(lepton_dev *dev);
+void lepton_save_capture(lepton_dev *dev, bool adjusted, const char *fname);
+
+#endif /* __LEPTON_H__ */

cs309-psoc/lab_2_1/sw/nios/application/lepton/lepton_regs.h

@@ -0,0 +1,25 @@
+#ifndef __LEPTON_REGS_H__
+#define __LEPTON_REGS_H__
+
+/* Register offsets */
+#define LEPTON_REGS_COMMAND_OFST         (   0 * 2)  /* WO */
+#define LEPTON_REGS_STATUS_OFST          (   1 * 2)  /* RO */
+#define LEPTON_REGS_MIN_OFST             (   2 * 2)  /* RO */
+#define LEPTON_REGS_MAX_OFST             (   3 * 2)  /* RO */
+#define LEPTON_REGS_SUM_LSB_OFST         (   4 * 2)  /* RO */
+#define LEPTON_REGS_SUM_MSB_OFST         (   5 * 2)  /* RO */
+#define LEPTON_REGS_ROW_IDX_OFST         (   6 * 2)  /* RO */
+#define LEPTON_REGS_RAW_BUFFER_OFST      (   8 * 2)  /* RO */
+#define LEPTON_REGS_ADJUSTED_BUFFER_OFST (8192 * 2)  /* RO */
+
+/* Command register */
+#define LEPTON_COMMAND_START (0x0001)
+
+/* Status register */
+#define LEPTON_STATUS_CAPTURE_IN_PROGRESS_MASK (1 << 0)
+#define LEPTON_STATUS_ERROR_MASK               (1 << 1)
+
+#define LEPTON_REGS_BUFFER_NUM_PIXELS (80 * 60)
+#define LEPTON_REGS_BUFFER_BYTELENGTH (LEPTON_REGS_BUFFER_NUM_PIXELS * 2)
+
+#endif /* __LEPTON_REGS_H__ */