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Diffstat (limited to 'meta-steppeeagle/recipes-applications/spi-test/files/spirom-test.c')
-rw-r--r--meta-steppeeagle/recipes-applications/spi-test/files/spirom-test.c798
1 files changed, 0 insertions, 798 deletions
diff --git a/meta-steppeeagle/recipes-applications/spi-test/files/spirom-test.c b/meta-steppeeagle/recipes-applications/spi-test/files/spirom-test.c
deleted file mode 100644
index 091ced1a..00000000
--- a/meta-steppeeagle/recipes-applications/spi-test/files/spirom-test.c
+++ /dev/null
@@ -1,798 +0,0 @@
-/*****************************************************************************
-*
-* Copyright (c) 2014, Advanced Micro Devices, Inc.
-* All rights reserved.
-*
-* Redistribution and use in source and binary forms, with or without
-* modification, are permitted provided that the following conditions are met:
-* * Redistributions of source code must retain the above copyright
-* notice, this list of conditions and the following disclaimer.
-* * Redistributions in binary form must reproduce the above copyright
-* notice, this list of conditions and the following disclaimer in the
-* documentation and/or other materials provided with the distribution.
-* * Neither the name of Advanced Micro Devices, Inc. nor the names of
-* its contributors may be used to endorse or promote products derived
-* from this software without specific prior written permission.
-*
-* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-* DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY
-* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*
-*
-***************************************************************************/
-#include <stdint.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include <string.h>
-#include <dirent.h>
-#include <signal.h>
-
-#include <sys/types.h>
-#include <sys/ioctl.h>
-#include <sys/stat.h>
-
-#include <readline/readline.h>
-
-#include "spirom.h"
-
-#define SPI_APP_VERSION "1.0"
-
-static int device_opened = 0;
-static char filename[20];
-static int fd = -1;
-
-char *show_prompt(void)
-{
- return "$ ";
-}
-
-void sighandler(int sig)
-{
- /* Do nothing. That is the idea. */
-}
-
-void show_license(void)
-{
- printf("/*****************************************************************************\n"
- "*\n"
- "* Copyright (c) 2014, Advanced Micro Devices, Inc.\n"
- "* All rights reserved.\n"
- "*\n"
- "* Redistribution and use in source and binary forms, with or without\n"
- "* modification, are permitted provided that the following conditions are met:\n"
- "* * Redistributions of source code must retain the above copyright\n"
- "* notice, this list of conditions and the following disclaimer.\n"
- "* * Redistributions in binary form must reproduce the above copyright\n"
- "* notice, this list of conditions and the following disclaimer in the\n"
- "* documentation and/or other materials provided with the distribution.\n"
- "* * Neither the name of Advanced Micro Devices, Inc. nor the names of\n"
- "* its contributors may be used to endorse or promote products derived\n"
- "* from this software without specific prior written permission.\n"
- "*\n"
- "* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\" AND\n"
- "* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n"
- "* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\n"
- "* DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY\n"
- "* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\n"
- "* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;\n"
- "* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND\n"
- "* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n"
- "* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS\n"
- "* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n"
- "*\n"
- "*\n"
- "***************************************************************************/\n");
-}
-
-void print_usage(void)
-{
- printf("\nCommands Supported ->\n");
- printf(" enumerate : List all SPI device nodes available\n");
- printf(" setdevice <dev_id> : Set the SPI device number to access\n");
- printf(" wren : Enable Write operation on SPI device\n");
- printf(" wrdi : Disable Write operation on SPI device\n");
- printf(" chiperase : Erase entire ROM chip\n");
- printf(" rdsr : Read status register of ROM device\n");
- printf(" rdid : Read device identification string\n");
- printf(" sectorerase <addr> <num_sectors> : Erase a fixed number of sectors starting at the address\n"
- " specified\n");
- printf(" blockerase <addr> <num_blocks> : Erase a fixed number of blocks starting at the address\n"
- " specified\n");
- printf(" read <addr> <num_bytes> <filename> : Read a fixed number of bytes starting at address\n"
- " specified, and output the contents into file\n");
- printf(" write <addr> <num_bytes> <filename> : Read a fixed number of bytes from file and output\n"
- " the contents to the device starting at the address\n"
- " specified\n");
- printf(" license : Displays the terms of LICENSE for this application\n");
- printf(" help : Displays help text\n");
- printf(" exit : Exits the application\n\n");
-}
-
-void parse_cmd(const char *cmdline)
-{
- struct spi_ioc_transfer tr;
- unsigned int bytes_chunks;
- unsigned int remaining_bytes;
- int addr;
- int ret;
-
- if ((cmdline == NULL) || (strncmp(cmdline, "exit", 4) == 0)) {
- printf("\nExiting...\n");
- close(fd);
- exit(EXIT_SUCCESS);
- } else if (strncmp(cmdline, "enumerate", 9) == 0) {
- DIR *dir;
- struct dirent *dir_entry;
- int device_found = 0;
-
- /* Get the directory handle */
- if ((dir = opendir("/dev")) == NULL) {
- printf("\n\nFailed to open directory /dev. Probably you "
- "do not have right privilege!\n\n");
- exit(EXIT_FAILURE);
- }
-
- /* Iterate over all the directory entries */
- while ((dir_entry = readdir(dir)) != NULL) {
- /*
- * If the file is a character device, and its signature
- * matches spirom, then we print the corresponding file.
- */
- if ((dir_entry->d_type == DT_CHR) &&
- (strncmp(dir_entry->d_name, "spirom", 6) == 0)) {
- printf("/dev/%s\n", dir_entry->d_name);
- device_found = 1;
- }
- }
-
- printf("\n");
-
- /*
- * In case we did not find even a single entry, we print a
- * message and exit.
- */
- if (!device_found) {
- printf("\n\nNo spirom device nodes found, load spirom "
- "kernel module and try again\n\n");
- exit(EXIT_FAILURE);
- }
- } else if (strncmp(cmdline, "setdevice", 9) == 0) {
- char input[2 + 1];
- int file_desc;
-
- cmdline += 10;
- memset(input, 0, 3);
- if (sscanf(cmdline, "%s", input) < 1) {
- printf("\nInvalid inputs, please try again\n\n");
- return;
- }
-
- memset(filename, 0, 20);
- snprintf(filename, 19, "/dev/spirom%s", input);
- file_desc = open(filename, O_RDWR);
- if (file_desc < 0) {
- printf("\nError opening file %s\n\n", filename);
- return;
- }
-
- /* Once we have validated inputs, we store them into the global
- * variables used at other places in the program.
- */
- fd = file_desc;
- device_opened = 1;
- printf("\nSPI device set to /dev/spirom%s\n\n", input);
- } else if (strncmp(cmdline, "wren", 4) == 0) {
- if (!device_opened) {
- printf("\nSPI device needs to be set before you can "
- "perform this operation\n\n");
- return;
- }
-
- /* command without data */
- tr.buf[0] = ROM_WREN;
- tr.direction = 0;
- tr.len = 0;
- tr.addr_present = 0;
-
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1)
- printf("\nError executing WREN command\n\n");
- else
- printf("\n...WREN completed successfully\n\n");
- } else if (strncmp(cmdline, "wrdi", 4) == 0) {
- if (!device_opened) {
- printf("\nSPI device needs to be set before you can "
- "perform this operation\n\n");
- return;
- }
-
- /* command without data */
- tr.buf[0] = ROM_WRDI;
- tr.direction = 0;
- tr.len = 0;
- tr.addr_present = 0;
-
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1)
- printf("\nError executing WRDI command\n\n");
- else
- printf("\n...WRDI completed successfully\n\n");
- } else if (strncmp(cmdline, "chiperase", 9) == 0) {
- if (!device_opened) {
- printf("\nSPI device needs to be set before you can "
- "perform this operation\n\n");
- return;
- }
-
- tr.buf[0] = ROM_RDSR;
- tr.direction = RECEIVE;
- tr.addr_present = 0;
- tr.len = 1;
-
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1) {
- printf("\nError executing RDSR command\n\n");;
- return;
- } else if ((tr.buf[1] & 0x02) == 0x00) {
- printf("\nCannot execute RDSR command, write is disabled\n\n");
- return;
- }
-
- /* Command without data */
- tr.buf[0] = ROM_CHIP_ERASE;
- tr.direction = 0;
- tr.len = 0;
- tr.addr_present = 0;
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1) {
- printf("\nError executing CHIPERASE command\n\n");
- return;
- }
-
- printf("\n\nCHIPERASE operation in progress, please do not "
- " stop in between.\n\n");
-
- /* Make sure WIP has been reset */
- while (1) {
- memset(&tr, 0, sizeof(struct spi_ioc_transfer));
- tr.buf[0] = ROM_RDSR;
- tr.direction = RECEIVE;
- tr.addr_present = 0;
- tr.len = 1;
-
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1) {
- printf("\nError executing RDSR command\n\n");
- return;
- }
-
- if ((tr.buf[1] & 0x01) == 0x00)
- break;
- }
-
- printf("\n\n...CHIPERASE completed successfully\n\n");
- /* Restore signal handler to default */
- } else if (strncmp(cmdline, "rdsr", 4) == 0) {
- if (!device_opened) {
- printf("\nSPI device needs to be set before you can "
- "perform this operation\n\n");
- return;
- }
-
- /* Command with response */
- tr.buf[0] = ROM_RDSR;
- tr.direction = RECEIVE;
- tr.addr_present = 0;
- tr.len = 1;
-
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1) {
- printf("\nError executing RDSR command\n\n");
- return;
- }
-
- /*
- * The 1-byte response will be stored in tr.buf,
- * so print it out
- */
- printf("\nRDSR command returned: 0x%.2x\n\n", tr.buf[1]);
- } else if (strncmp(cmdline, "rdid", 4) == 0) {
- if (!device_opened) {
- printf("\nSPI device needs to be set before you can "
- "perform this operation\n\n");
- return;
- }
-
- /* Command with response */
- tr.buf[0] = ROM_RDID;
- tr.direction = RECEIVE;
- tr.addr_present = 0;
- tr.len = 3;
-
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1) {
- printf("\nError executing RDID command\n\n");
- return;
- }
-
- /*
- * The 3-bytes response will be stored in tr.buf,
- * so print it out
- */
- printf("\nRDID command returned: 0x%.2x%.2x%.2x\n", tr.buf[1],
- tr.buf[2], tr.buf[3]);
- } else if (strncmp(cmdline, "sectorerase", 11) == 0) {
- int nsectors;
- int i;
-
- if (!device_opened) {
- printf("\nSPI device needs to be set before you can "
- "perform this operation\n\n");
- return;
- }
-
- cmdline += 12;
- if (sscanf(cmdline, "0x%x 0x%x", &addr, &nsectors) < 2) {
- printf("\nInvalid inputs, please try again\n\n");
- return;
- }
-
- tr.buf[0] = ROM_RDSR;
- tr.direction = RECEIVE;
- tr.addr_present = 0;
- tr.len = 1;
-
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1) {
- printf("\nError executing RDSR command\n\n");
- return;
- } else if ((tr.buf[1] & 0x02) == 0x00) {
- printf("\nCannot execute SECTORERASE command, write is disabled\n\n");
- return;
- }
-
- printf("\n\nSECTORERASE operation in progress, please do not "
- " stop in between.\n\n");
-
- for (i = 0; i < nsectors; i++) {
- /* Write Enable before Sector Erase */
- tr.buf[0] = ROM_WREN;
- tr.direction = 0;
- tr.len = 0;
- tr.addr_present = 0;
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1) {
- printf("\nError executing WREN command\n\n");
- return;
- }
-
- /* Command with address but no data */
- memset(&tr, 0, sizeof(struct spi_ioc_transfer));
- tr.buf[0] = ROM_SECTOR_ERASE;
- tr.buf[3] = addr & 0xff;
- tr.buf[2] = (addr >> 8) & 0xff;
- tr.buf[1] = (addr >> 16) & 0xff;
- tr.addr_present = 1;
- tr.direction = 0;
- tr.len = 0;
-
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1) {
- printf("\nError executing SECTORERASE command\n\n");
- return;
- }
-
- /* point to the next 4k sector */
- addr += 4 * 1024;
-
- /*
- * Before the next loop, we need to make sure that WIP
- * bit in the output of RDSR has been reset.
- */
- while (1) {
- memset(&tr, 0, sizeof(struct spi_ioc_transfer));
- tr.buf[0] = ROM_RDSR;
- tr.direction = RECEIVE;
- tr.addr_present = 0;
- tr.len = 1;
-
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1) {
- printf("\nError executing RDSR command\n\n");
- return;
- }
-
- if ((tr.buf[1] & 0x01) == 0x00)
- break;
- }
- }
-
- printf("\n\n...SECTORERASE completed successfully\n\n");
- } else if (strncmp(cmdline, "blockerase", 10) == 0) {
- int nblocks;
- int i;
-
- if (!device_opened) {
- printf("\nSPI device needs to be set before you can "
- "perform this operation\n\n");
- return;
- }
-
- cmdline += 11;
- if (sscanf(cmdline, "0x%x 0x%x", &addr, &nblocks) < 2) {
- printf("\nInvalid inputs, please try again\n\n");
- return;
- }
-
- tr.buf[0] = ROM_RDSR;
- tr.direction = RECEIVE;
- tr.addr_present = 0;
- tr.len = 1;
-
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1) {
- printf("\nError executing RDSR command\n\n");
- return;
- } else if ((tr.buf[1] & 0x02) == 0x00) {
- printf("\nError executing BLOCKERASE command, write is disabled\n\n");
- return;
- }
-
- printf("\n\nBLOCKERASE operation in progress, please do not "
- " stop in between.\n\n");
-
- for (i = 0; i < nblocks; i++) {
- /* Write Enable before Block Erase */
- tr.buf[0] = ROM_WREN;
- tr.direction = 0;
- tr.len = 0;
- tr.addr_present = 0;
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1) {
- printf("\nError executing WREN command\n\n");
- return;
- }
-
- /* Command with address but no data */
- memset(&tr, 0, sizeof(struct spi_ioc_transfer));
- tr.buf[0] = ROM_BLOCK_ERASE;
- tr.buf[3] = addr & 0xff;
- tr.buf[2] = (addr >> 8) & 0xff;
- tr.buf[1] = (addr >> 16) & 0xff;
- tr.addr_present = 1;
- tr.direction = 0;
- tr.len = 0;
-
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1) {
- printf("\nError executing BLOCKERASE command\n\n");
- return;
- }
-
- /* point to the next 64k block */
- addr += 64 * 1024;
-
- /*
- * Before the next loop, we need to make sure that WIP
- * bit in the output of RDSR has been reset.
- */
- while (1) {
- memset(&tr, 0, sizeof(struct spi_ioc_transfer));
- tr.buf[0] = ROM_RDSR;
- tr.direction = RECEIVE;
- tr.addr_present = 0;
- tr.len = 1;
-
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1) {
- printf("\nError executing RDSR command\n\n");
- return;
- }
-
- if ((tr.buf[1] & 0x01) == 0x00)
- break;
- }
- }
-
- printf("\n\n...BLOCKERASE completed successfully\n\n");
- } else if (strncmp(cmdline, "read", 4) == 0) {
- int nbytes;
- int outfile_fd;
- int i;
-
- if (!device_opened) {
- printf("\nSPI device needs to be set before you can "
- "perform this operation\n\n");
- return;
- }
-
- cmdline += 5;
- memset(filename, 0, 20);
- if (sscanf(cmdline, "0x%x 0x%x %s", &addr, &nbytes, filename) < 3) {
- printf("\nInvalid inputs, please try again\n\n");
- return;
- }
-
- /*
- * Open the output file for writing. Create a new file if not
- * there, and empty the file before writing if file already
- * exists.
- */
- outfile_fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0644);
- if (outfile_fd < 0) {
- printf("\nError opening file %s for writing\n\n", filename);
- return;
- }
-
- /*
- * We will break down the bytes to be received in chunks of
- * of 4-bytes. Data might not be a even multiple of 4. So
- * in that case, we will have some remaining bytes <4. We
- * handle that separately.
- */
- bytes_chunks = nbytes / 4;
- remaining_bytes = nbytes % 4;
-
- printf("\n\nREAD operation in progress.\n\n");
-
- for (i = 0; i < bytes_chunks; i++) {
- /* Command with address and data */
- memset(&tr, 0, sizeof(struct spi_ioc_transfer));
- tr.buf[0] = ROM_READ;
- tr.direction = RECEIVE;
- /*
- * We will store the address into the buffer in little
- * endian order.
- */
- tr.buf[3] = addr & 0xff;
- tr.buf[2] = (addr >> 8) & 0xff;
- tr.buf[1] = (addr >> 16) & 0xff;
- tr.len = 4;
- tr.addr_present = 1;
-
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1) {
- printf("\nError executing READ command\n\n");
- return;
- }
-
- /* Write the data read to output file */
- if (write(outfile_fd, &tr.buf[4], tr.len) < 0) {
- printf("\nError writing to file %s\n\n", filename);
- return;
- }
- addr += 4;
- }
-
- if (remaining_bytes) {
- memset(&tr, 0, sizeof(struct spi_ioc_transfer));
- tr.buf[0] = ROM_READ;
- tr.direction = RECEIVE;
- tr.buf[3] = addr & 0xff;
- tr.buf[2] = (addr >> 8) & 0xff;
- tr.buf[1] = (addr >> 16) & 0xff;
- tr.len = remaining_bytes;
- tr.addr_present = 1;
-
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1) {
- printf("\nError executing READ command\n\n");
- return;
- }
-
- if (write(outfile_fd, &tr.buf[4], tr.len) < 0) {
- printf("\nError writing to file %s\n\n", filename);
- return;
- }
- }
-
- printf("\n\n...READ completed successfully\n\n");
- close(outfile_fd);
- } else if (strncmp(cmdline, "write", 5) == 0) {
- int nbytes;
- int infile_fd;
- int i;
-
- if (!device_opened) {
- printf("\nSPI device needs to be set before you can "
- "perform this operation\n\n");
- return;
- }
-
- cmdline += 6;
- memset(filename, 0, 20);
- if (sscanf(cmdline, "0x%x 0x%x %s", &addr, &nbytes, filename) < 3) {
- printf("\nInvalid inputs, please try again\n\n");
- return;
- }
-
- /* Open the input file for reading*/
- infile_fd = open(filename, O_RDONLY);
- if (infile_fd < 0) {
- printf("\nError opening file %s for reading\n\n", filename);
- return;
- }
-
- /*
- * We will break down the bytes to be transmitted in chunks of
- * of 4-bytes. Like for read, we might not have data in an
- * even multiple of 4 bytes. So we will handle the remaining
- * bytes in the end.
- */
- tr.buf[0] = ROM_RDSR;
- tr.direction = RECEIVE;
- tr.addr_present = 0;
- tr.len = 1;
-
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1) {
- printf("\nError executing RDSR command\n\n");
- return;
- } else if ((tr.buf[1] & 0x02) == 0x00) {
- printf("\nCannot execute WRITE command, write is disabled\n\n");
- return;
- }
-
- bytes_chunks = nbytes / 4;
- remaining_bytes = nbytes % 4;
-
- printf("\n\nWRITE operation in progress, please do not "
- " stop in between.\n\n");
-
- for (i = 0; i < bytes_chunks; i++) {
- tr.buf[0] = ROM_WREN;
- tr.direction = 0;
- tr.len = 0;
- tr.addr_present = 0;
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1) {
- printf("\nError executing WREN command\n\n");
- return;
- }
-
- /* Command with data and address */
- memset(&tr, 0, sizeof(struct spi_ioc_transfer));
- tr.buf[0] = ROM_WRITE;
- tr.direction = TRANSMIT;
- /*
- * We will store the address into the buffer in little
- * endian order.
- */
- tr.buf[3] = addr & 0xff;
- tr.buf[2] = (addr >> 8) & 0xff;
- tr.buf[1] = (addr >> 16) & 0xff;
- tr.len = 4;
- tr.addr_present = 1;
-
- /* Read 4 bytes from input file to buffer */
- if (read(infile_fd, &tr.buf[4], tr.len) < 0) {
- printf("\nError reading from file %s\n\n", filename);
- return;
- }
-
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1) {
- printf("\nError executing WRITE command\n\n");
- return;
- }
-
- addr += 4;
-
- /*
- * Before the next loop, we need to make sure that WIP
- * bit in the output of RDSR has been reset.
- */
- while (1) {
- memset(&tr, 0, sizeof(struct spi_ioc_transfer));
- tr.buf[0] = ROM_RDSR;
- tr.direction = RECEIVE;
- tr.addr_present = 0;
- tr.len = 1;
-
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1) {
- printf("\nError executing RDSR command\n\n");
- return;
- }
-
- if ((tr.buf[1] & 0x01) == 0x00)
- break;
- }
- }
-
- if (remaining_bytes) {
- tr.buf[0] = ROM_WREN;
- tr.direction = 0;
- tr.len = 0;
- tr.addr_present = 0;
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1) {
- printf("\nError executing WREN command\n\n");
- return;
- }
-
- memset(&tr, 0, sizeof(struct spi_ioc_transfer));
- tr.buf[0] = ROM_WRITE;
- tr.direction = TRANSMIT;
- tr.buf[3] = addr & 0xff;
- tr.buf[2] = (addr >> 8) & 0xff;
- tr.buf[1] = (addr >> 16) & 0xff;
- tr.len = remaining_bytes;
- tr.addr_present = 1;
-
- if (read(infile_fd, &tr.buf[4], tr.len) < 0) {
- printf("\nError reading from file %s\n\n", filename);
- return;
- }
-
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1) {
- printf("\nError executing WRITE command\n\n");
- return;
- }
-
- while (1) {
- memset(&tr, 0, sizeof(struct spi_ioc_transfer));
- tr.buf[0] = ROM_RDSR;
- tr.direction = RECEIVE;
- tr.addr_present = 0;
- tr.len = 1;
-
- ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
- if (ret < 1) {
- printf("\nError executing RDSR command\n\n");
- return;
- }
-
- if ((tr.buf[1] & 0x01) == 0x00)
- break;
- }
- }
-
- printf("\n\n...WRITE completed successfully\n\n");
- close(infile_fd);
- } else if (strncmp(cmdline, "license", 7) == 0) {
- show_license();
- } else if (strncmp(cmdline, "help", 4) == 0) {
- print_usage();
- } else {
- printf("\nUnknown command\n");
- print_usage();
- }
-}
-
-int main(void)
-{
- char *cmdline= NULL;
-
- printf("SPI sample application version: %s\n", SPI_APP_VERSION);
- printf("Copyright (c) 2014, Advanced Micro Devices, Inc.\n"
- "This sample application comes with ABSOLUTELY NO WARRANTY;\n"
- "This is free software, and you are welcome to redistribute it\n"
- "under certain conditions; type `license` for details.\n\n");
-
- /* Set the signal handler */
- signal(SIGINT, sighandler);
-
- while (1) {
- cmdline = readline(show_prompt());
- parse_cmd(cmdline);
- /* Free the memory malloc'ed by readline */
- free(cmdline);
- }
-
- /* Restore the default signal handler */
- signal(SIGINT, SIG_DFL);
-
- /* Should never reach here */
- return 0;
-}