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jtag/drivers: send bitstream size to firmware via libusb 

Send bitstream size to firmware to initialize the GPIF count registers,
since we're going to send this size via GPIF, we need to give the exact
number of bytes to be sent, then the GPIF counter will decrement with
every clock cycle (every byte sent) until reaching zero and stops.

Change-Id: Ib4e8e0f95a6a4a95ef4888ba8a04a0ea45567f5a
Signed-off-by: Ahmed BOUDJELIDA <aboudjelida@nanoxplore.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7988
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
This commit is contained in:
Ahmed BOUDJELIDA 2023-11-21 17:45:55 +01:00 committed by Evgeniy Naydanov
parent 619a4bbb7b
commit 311c70405d
1 changed files with 14 additions and 10 deletions
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24
src/jtag/drivers/angie.c
View File

@ -17,6 +17,7 @@
#include <stdlib.h>
#include <math.h>
#include "helper/system.h"
#include <helper/types.h>
#include <jtag/interface.h>
#include <jtag/commands.h>
#include <target/image.h>
@ -61,7 +62,7 @@
#define ANGIE_FIRMWARE_FILE PKGDATADIR "/angie/angie_firmware.bin"
/** Default location of ANGIE firmware image. */
#define ANGIE_BITSTREAM_FILE PKGDATADIR "/angie/angie_bitstream.bit"
#define ANGIE_BITSTREAM_FILE PKGDATADIR "/angie/angie_bitstream.bit"
/** Maximum size of a single firmware section. Entire EZ-USB ANGIE code space = 16kB */
#define SECTION_BUFFERSIZE 16384
@ -404,15 +405,7 @@ static int angie_load_bitstream(struct angie *device, const char *filename)
FILE *bitstream_file = NULL;
char *bitstream_data = NULL;
size_t bitstream_size = 0;
/* CFGopen */
ret = jtag_libusb_control_transfer(device->usb_device_handle,
0x00, 0xB0, 0, 0, NULL, 0, LIBUSB_TIMEOUT_MS, &transferred);
if (ret != ERROR_OK) {
LOG_ERROR("Failed opencfg");
/* Abort if libusb sent less data than requested */
return ERROR_FAIL;
}
uint8_t gpifcnt[4];
/* Open the bitstream file */
bitstream_file = fopen(bitstream_file_path, "rb");
@ -442,6 +435,17 @@ static int angie_load_bitstream(struct angie *device, const char *filename)
return ERROR_FAIL;
}
h_u32_to_be(gpifcnt, bitstream_size);
/* CFGopen */
ret = jtag_libusb_control_transfer(device->usb_device_handle,
0x00, 0xB0, 0, 0, (char *)gpifcnt, 4, LIBUSB_TIMEOUT_MS, &transferred);
if (ret != ERROR_OK) {
LOG_ERROR("Failed opencfg");
/* Abort if libusb sent less data than requested */
return ERROR_FAIL;
}
/* Send the bitstream data to the microcontroller */
int actual_length = 0;
ret = jtag_libusb_bulk_write(device->usb_device_handle, 0x02, bitstream_data, bitstream_size, 1000, &actual_length);