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authorWestergreen, Dalon <dalon.westergreen@intel.com>2017-03-29 15:41:36 -0700
committerWestergreen, Dalon <dalon.westergreen@intel.com>2017-03-30 16:35:30 -0700
commit9a293641b9abf9e4fca34f46a2de781f50847da9 (patch)
tree743a6aaa5f9834987a2e69881ced6eaf9efb3592 /recipes-demo/de10-nano-fftsw-apps/files/stream_fpga_256x1x1.c
parent8abd3fefd939f796ae49191d6f5af641f2d624d0 (diff)
downloadmeta-de10-nano-9a293641b9abf9e4fca34f46a2de781f50847da9.tar.xz
Initial commit of de10-nano recipes
Please note that this is purely for development. Only superficial efforts have been made to resolve security concerns, and it should be noted that the board ships with an EMPTY ROOT PASSWORD and support for root login via ssh. This allows passwordless access to the board via ssh. recipes-bsp/u-boot: Contains the uboot 2017.03rc2 recipe and patches to support the de10-nano board recipes-connectivity/avahi: bbappend to remove unwanted packages recipes-connectivity/bluez: bbappend to add --compat to the bluetooth service to support legacy SDP APIs recipes-connectivity/openssh: bbappend to add a custom sshd_config recipes-core/base-files: bbappend to customize fstab and inputrc recipes-core/imagemagick: bbappend to change build configuration for the de10-nano board recipes-core/packagegroups: bbappend to remove an unwanted package recipes-core/webkit: bbappend to remove support for opengl recipes-demo: Various demo applications recipes-devtools: MRAA and UPM recipes recipes-images/angstrom/de10-nano-image.bb: DE10-Nano image definition recipes-kernel/de10-nano-linux-firmware: FPGA related firmware required for fpga configuration and devicetree overlay support recipes-kernel/linux: bbappend to customize configuration of linux kernel as well as patch in the de10-nano devicetree recipes-misc: various initialization and systemd scripts recipes-qt/qt5: bbappend to modify qt build options recipes-support/neon: bbappend to remove unwanted package recipes-support/upower: bbappend to remove unwanted package recipes-webserver: webserver configuration and webcontent for board hostedweb portal recipes-xfce/thunar-volman: bbappend to remove unwanted package recipes-xfce/xfce-pointers: add configuration so that xfce does not use the adxl input as a mouse recipes-xfce/xfce4-settings: bbappend to remove unwanted package Signed-off-by: Westergreen, Dalon <dalon.westergreen@intel.com>
Diffstat (limited to 'recipes-demo/de10-nano-fftsw-apps/files/stream_fpga_256x1x1.c')
-rw-r--r--recipes-demo/de10-nano-fftsw-apps/files/stream_fpga_256x1x1.c118
1 files changed, 118 insertions, 0 deletions
diff --git a/recipes-demo/de10-nano-fftsw-apps/files/stream_fpga_256x1x1.c b/recipes-demo/de10-nano-fftsw-apps/files/stream_fpga_256x1x1.c
new file mode 100644
index 0000000..b7b07fb
--- /dev/null
+++ b/recipes-demo/de10-nano-fftsw-apps/files/stream_fpga_256x1x1.c
@@ -0,0 +1,118 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <error.h>
+#include <errno.h>
+
+#include "NE10.h"
+
+/* customize these macros and variables for a particular implementation */
+#define FFT_IN_ROUNDS (1)
+#define FFT_CALC_POINTS (256)
+#define FFT_CALC_ROUNDS (1)
+#define FFT_POINTS (FFT_CALC_POINTS * FFT_CALC_ROUNDS)
+#define IN_SAMPLE_TYPE ne10_fft_cpx_int16_t
+#define OUT_SAMPLE_TYPE ne10_fft_cpx_int32_t
+
+const char *g_test = "stream_fpga_256x1x1";
+const char *g_description = "256x1x1 point FFT, FPGA, 16-bit input 24/32-bit output";
+
+/* these functions and variables are implemented in overhead.c as a library */
+extern void initialize_everything(int argc, char **argv);
+extern uint64_t get_gt_value(void);
+extern void release_everything(void);
+extern void print_results(void);
+
+extern char *g_input_filename;
+extern char *g_output_filename;
+extern uint64_t g_start_time;
+extern uint64_t g_end_time;
+
+int main(int argc, char **argv)
+{
+ int input_fd;
+ int output_fd;
+ int fft256stream_dev_fd;
+ int result;
+ IN_SAMPLE_TYPE *in_buf;
+ OUT_SAMPLE_TYPE *out_buf;
+ int j;
+
+ initialize_everything(argc, argv);
+
+ /* allocate storage for input, output and config buffers */
+ in_buf = (IN_SAMPLE_TYPE*) NE10_MALLOC (FFT_CALC_POINTS * sizeof(IN_SAMPLE_TYPE));
+ if(in_buf == NULL)
+ error(1, errno, "in_buf allocation");
+
+ out_buf = (OUT_SAMPLE_TYPE*) NE10_MALLOC (FFT_POINTS * sizeof(OUT_SAMPLE_TYPE));
+ if(out_buf == NULL)
+ error(1, errno, "out_buf allocation");
+
+ /* open the input and output files and fft dev */
+ input_fd = open(g_input_filename, O_RDONLY);
+ if(input_fd < 0)
+ error(1, errno, "opening input file '%s'", g_input_filename);
+
+ output_fd = open(g_output_filename, O_WRONLY | O_CREAT, ~((mode_t)umask));
+ if(output_fd < 0)
+ error(1, errno, "opening output file '%s'", g_output_filename);
+
+ fft256stream_dev_fd = open("/dev/fft256stream", O_RDWR);
+ if(fft256stream_dev_fd < 0)
+ error(1, errno, "opening fft256stream_dev_fd");
+
+ /* read the input data */
+ result = read(input_fd, in_buf, FFT_CALC_POINTS * sizeof(IN_SAMPLE_TYPE));
+ if(result < 0)
+ error(1, errno, "read input file");
+ if(result != (FFT_CALC_POINTS * sizeof(IN_SAMPLE_TYPE)))
+ error(1, 0, "input data size, expected %d but got %d", FFT_CALC_POINTS * sizeof(IN_SAMPLE_TYPE), result);
+
+ /* write the waveform buffer */
+ result = write(fft256stream_dev_fd, in_buf, FFT_CALC_POINTS * sizeof(IN_SAMPLE_TYPE));
+ if(result < 0)
+ error(1, errno, "write waveform buffer");
+ if(result != (FFT_CALC_POINTS * sizeof(IN_SAMPLE_TYPE)))
+ error(1, 0, "output data size, expected %d but got %d", FFT_CALC_POINTS * sizeof(IN_SAMPLE_TYPE), result);
+
+ /* capture the start value of the GT */
+ g_start_time = get_gt_value();
+
+ for(j = 0 ; j < FFT_IN_ROUNDS ; j++) {
+ /* fetch the preprocessed stream from the FPGA, 16 bit input 24/32 bit output */
+ result = read(fft256stream_dev_fd, out_buf, FFT_POINTS * sizeof(OUT_SAMPLE_TYPE));
+ if(result < 0)
+ error(1, errno, "read from fft256stream_dev_fd");
+ if (result != (int)(FFT_POINTS * sizeof(OUT_SAMPLE_TYPE)))
+ error(1, 0, "fft256stream_dev_fd output data size, expected %d but got %d", FFT_POINTS * sizeof(OUT_SAMPLE_TYPE), result);
+
+ /* write the output data */
+ result = write(output_fd, out_buf, FFT_POINTS * sizeof(OUT_SAMPLE_TYPE));
+ if(result < 0)
+ error(1, errno, "write output file");
+ if(result != (FFT_POINTS * sizeof(OUT_SAMPLE_TYPE)))
+ error(1, 0, "output data size, expected %d but got %d", FFT_POINTS * sizeof(OUT_SAMPLE_TYPE), result);
+ }
+
+ /* capture the end value of the GT */
+ g_end_time = get_gt_value();
+
+ /* close the input and output files and fft dev */
+ close(fft256stream_dev_fd);
+ close(output_fd);
+ close(input_fd);
+
+ /* free storage for input, output and config buffers */
+ NE10_FREE (out_buf);
+ NE10_FREE (in_buf);
+
+ print_results();
+ release_everything();
+ return 0;
+}
+