[Cryptech-Commits] [sw/libhal] 04/58: Copy Joachim's EIM timeout change, make timeout configurable at compile time. Detect not-multiple-of-four-byte errors before they trigger an infinite loop. Remove printfs() that don't belong in library code, along with an unnecessary malloc(). Other minor cleanup.
git at cryptech.is
git at cryptech.is
Tue Jul 7 18:24:48 UTC 2015
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sra at hactrn.net pushed a commit to branch master
in repository sw/libhal.
commit e2de6b1f6d220fc2481b19bd1ed203b493d2db18
Author: Rob Austein <sra at hactrn.net>
Date: Thu May 21 00:17:33 2015 -0400
Copy Joachim's EIM timeout change, make timeout configurable at
compile time. Detect not-multiple-of-four-byte errors before they
trigger an infinite loop. Remove printfs() that don't belong in
library code, along with an unnecessary malloc(). Other minor
cleanup.
---
cryptech.h | 1 +
hal_io_eim.c | 190 +++++++++++++++---------------
hal_io_i2c.c | 369 +++++++++++++++++++++++++++++------------------------------
3 files changed, 270 insertions(+), 290 deletions(-)
diff --git a/cryptech.h b/cryptech.h
index dce2b8b..8218aa2 100644
--- a/cryptech.h
+++ b/cryptech.h
@@ -436,6 +436,7 @@ typedef enum {
HAL_ERROR_IO_TIMEOUT, /* I/O with FPGA timed out */
HAL_ERROR_IO_UNEXPECTED, /* Unexpected response from FPGA */
HAL_ERROR_IO_OS_ERROR, /* Operating system error talking to FPGA */
+ HAL_ERROR_IO_BAD_COUNT, /* Bad byte count */
HAL_ERROR_CSPRNG_BROKEN, /* CSPRNG is returning nonsense (perhaps core not present?) */
HAL_ERROR_KEYWRAP_BAD_MAGIC, /* Bad magic number while unwrapping key */
HAL_ERROR_KEYWRAP_BAD_LENGTH, /* Length out of range while unwrapping key */
diff --git a/hal_io_eim.c b/hal_io_eim.c
index 6f9e159..5936d0c 100644
--- a/hal_io_eim.c
+++ b/hal_io_eim.c
@@ -47,21 +47,20 @@
static int debug = 0;
static int inited = 0;
-/* ---------------- EIM low-level code ---------------- */
+#ifndef EIM_IO_TIMEOUT
+#define EIM_IO_TIMEOUT 100000000
+#endif
static hal_error_t init(void)
{
- if (inited)
- return HAL_OK;
+ if (inited)
+ return HAL_OK;
- if (eim_setup() != 0) {
- if (debug)
- fprintf(stderr, "[ EIM setup failed ]\n");
- return HAL_ERROR_IO_SETUP_FAILED;
- }
+ if (eim_setup() != 0)
+ return HAL_ERROR_IO_SETUP_FAILED;
- inited = 1;
- return HAL_OK;
+ inited = 1;
+ return HAL_OK;
}
/* translate cryptech register number to EIM address
@@ -75,143 +74,134 @@ static hal_error_t init(void)
*/
static off_t eim_offset(off_t offset)
{
- return EIM_BASE_ADDR + ((offset & ~0x1fff) << 3) + ((offset & 0x1fff) << 2);
+ return EIM_BASE_ADDR + ((offset & ~0x1fff) << 3) + ((offset & 0x1fff) << 2);
}
-/* ---------------- test-case low-level code ---------------- */
-
void hal_io_set_debug(int onoff)
{
- debug = onoff;
+ debug = onoff;
}
static void dump(char *label, const uint8_t *buf, size_t len)
{
- if (debug) {
- int i;
- printf("%s [", label);
- for (i = 0; i < len; ++i)
- printf(" %02x", buf[i]);
- printf(" ]\n");
- }
+ if (debug) {
+ size_t i;
+ printf("%s [", label);
+ for (i = 0; i < len; ++i)
+ printf(" %02x", buf[i]);
+ printf(" ]\n");
+ }
}
hal_error_t hal_io_write(off_t offset, const uint8_t *buf, size_t len)
{
- hal_error_t err;
+ hal_error_t err;
- if ((err = init()) != HAL_OK)
- return err;
+ if (len % 4 != 0)
+ return HAL_ERROR_IO_BAD_COUNT;
- dump("write ", buf, len);
+ if ((err = init()) != HAL_OK)
+ return err;
- offset = eim_offset(offset);
- for (; len > 0; offset += 4, buf += 4, len -= 4) {
- uint32_t val;
- val = htonl(*(uint32_t *)buf);
- eim_write_32(offset, &val);
- }
+ dump("write ", buf, len);
- return HAL_OK;
+ offset = eim_offset(offset);
+ for (; len > 0; offset += 4, buf += 4, len -= 4) {
+ uint32_t val;
+ val = htonl(*(uint32_t *)buf);
+ eim_write_32(offset, &val);
+ }
+
+ return HAL_OK;
}
hal_error_t hal_io_read(off_t offset, uint8_t *buf, size_t len)
{
- uint8_t *rbuf = buf;
- int rlen = len;
- hal_error_t err;
-
- if ((err = init()) != HAL_OK)
- return err;
-
- offset = eim_offset(offset);
- for (; rlen > 0; offset += 4, rbuf += 4, rlen -= 4) {
- uint32_t val;
- eim_read_32(offset, &val);
- *(uint32_t *)rbuf = ntohl(val);
- }
+ uint8_t *rbuf = buf;
+ int rlen = len;
+ hal_error_t err;
- dump("read ", buf, len);
+ if (len % 4 != 0)
+ return HAL_ERROR_IO_BAD_COUNT;
- return HAL_OK;
+ if ((err = init()) != HAL_OK)
+ return err;
+
+ offset = eim_offset(offset);
+ for (; rlen > 0; offset += 4, rbuf += 4, rlen -= 4) {
+ uint32_t val;
+ eim_read_32(offset, &val);
+ *(uint32_t *)rbuf = ntohl(val);
+ }
+
+ dump("read ", buf, len);
+
+ return HAL_OK;
}
hal_error_t hal_io_expected(off_t offset, const uint8_t *expected, size_t len)
{
- hal_error_t err;
- uint8_t *buf;
- int i;
-
- buf = malloc(len);
- if (buf == NULL) {
- perror("malloc");
- return HAL_ERROR_MEMORY;
- }
- dump("expect", expected, len);
-
- if ((err = hal_io_read(offset, buf, len)) != HAL_OK)
- goto errout;
-
- for (i = 0; i < len; ++i) {
- if (buf[i] != expected[i]) {
- fprintf(stderr, "response byte %d: expected 0x%02x, got 0x%02x\n",
- i, expected[i], buf[i]);
- err = HAL_ERROR_IO_UNEXPECTED;
- goto errout;
- }
- }
+ hal_error_t err;
+ uint8_t buf[4];
+ size_t i;
- free(buf);
- return HAL_OK;
+ if (len % 4 != 0)
+ return HAL_ERROR_IO_BAD_COUNT;
-errout:
- free(buf);
- return err;
+ dump("expect", expected, len);
+
+ for (i = 0; i < len; i++) {
+ if ((i & 3) == 0 && (err = hal_io_read(offset, buf, sizeof(buf))) != HAL_OK)
+ return err;
+ if (buf[i & 3] != expected[i])
+ return HAL_ERROR_IO_UNEXPECTED;
+ }
+
+ return HAL_OK;
}
hal_error_t hal_io_init(off_t offset)
{
- uint8_t buf[4] = { 0, 0, 0, CTRL_INIT };
-
- return hal_io_write(offset, buf, 4);
+ uint8_t buf[4] = { 0, 0, 0, CTRL_INIT };
+ return hal_io_write(offset, buf, sizeof(buf));
}
hal_error_t hal_io_next(off_t offset)
{
- uint8_t buf[4] = { 0, 0, 0, CTRL_NEXT };
-
- return hal_io_write(offset, buf, 4);
+ uint8_t buf[4] = { 0, 0, 0, CTRL_NEXT };
+ return hal_io_write(offset, buf, sizeof(buf));
}
hal_error_t hal_io_wait(off_t offset, uint8_t status, int *count)
{
- hal_error_t err;
- uint8_t buf[4];
- int i;
-
- for (i = 1; ; ++i) {
- if (count && (*count > 0) && (i >= *count)) {
- fprintf(stderr, "hal_io_wait timed out\n");
- return HAL_ERROR_IO_TIMEOUT;
- }
- if ((err = hal_io_read(offset, buf, 4)) != HAL_OK)
- return err;
- if (buf[3] & status) {
- if (count)
- *count = i;
- return HAL_OK;
- }
+ hal_error_t err;
+ uint8_t buf[4];
+ int i;
+
+ for (i = 1; ; ++i) {
+
+ if (count && (*count > 0) && (i >= *count))
+ return HAL_ERROR_IO_TIMEOUT;
+
+ if ((err = hal_io_read(offset, buf, sizeof(buf))) != HAL_OK)
+ return err;
+
+ if ((buf[3] & status) != 0) {
+ if (count)
+ *count = i;
+ return HAL_OK;
}
+ }
}
hal_error_t hal_io_wait_ready(off_t offset)
{
- int limit = 256;
- return hal_io_wait(offset, STATUS_READY, &limit);
+ int limit = EIM_IO_TIMEOUT;
+ return hal_io_wait(offset, STATUS_READY, &limit);
}
hal_error_t hal_io_wait_valid(off_t offset)
{
- int limit = 256;
- return hal_io_wait(offset, STATUS_VALID, &limit);
+ int limit = EIM_IO_TIMEOUT;
+ return hal_io_wait(offset, STATUS_VALID, &limit);
}
diff --git a/hal_io_i2c.c b/hal_io_i2c.c
index 54b54fb..b7256d2 100644
--- a/hal_io_i2c.c
+++ b/hal_io_i2c.c
@@ -49,108 +49,106 @@
static int debug = 0;
static int i2cfd = -1;
-/* ---------------- I2C low-level code ---------------- */
void hal_io_set_debug(int onoff)
{
- debug = onoff;
+ debug = onoff;
}
static void dump(char *label, const uint8_t *buf, size_t len)
{
- if (debug) {
- int i;
- printf("%s [", label);
- for (i = 0; i < len; ++i)
- printf(" %02x", buf[i]);
- printf(" ]\n");
- }
+ if (debug) {
+ int i;
+ printf("%s [", label);
+ for (i = 0; i < len; ++i)
+ printf(" %02x", buf[i]);
+ printf(" ]\n");
+ }
}
static void i2c_close(void)
{
- (void) close(i2cfd);
+ (void) close(i2cfd);
}
static hal_error_t i2c_open(void)
{
- int fd = -1;
+ int fd = -1;
- if (i2cfd >= 0)
- return HAL_OK;
+ if (i2cfd >= 0)
+ return HAL_OK;
- /* It's dead, Jim, you can stop kicking it now */
- if (i2cfd < -1)
- return HAL_ERROR_IO_SETUP_FAILED;
+ /* It's dead, Jim, you can stop kicking it now */
+ if (i2cfd < -1)
+ return HAL_ERROR_IO_SETUP_FAILED;
- fd = open(I2C_dev, O_RDWR);
- if (fd < 0) {
- if (debug)
- perror("Unable to open %s: " I2C_dev);
- goto fail;
- }
+ fd = open(I2C_dev, O_RDWR);
+ if (fd < 0) {
+ if (debug)
+ perror("Unable to open %s: " I2C_dev);
+ goto fail;
+ }
- if (ioctl(fd, I2C_SLAVE, I2C_addr) < 0) {
- if (debug)
- perror("Unable to set I2C slave device");
- goto fail;
- }
+ if (ioctl(fd, I2C_SLAVE, I2C_addr) < 0) {
+ if (debug)
+ perror("Unable to set I2C slave device");
+ goto fail;
+ }
- if (atexit(i2c_close) < 0) {
- if (debug)
- perror("Unable to set I2C atexit handler");
- goto fail;
- }
+ if (atexit(i2c_close) < 0) {
+ if (debug)
+ perror("Unable to set I2C atexit handler");
+ goto fail;
+ }
- i2cfd = fd;
- return HAL_OK;
+ i2cfd = fd;
+ return HAL_OK;
fail:
- if (fd >= 0)
- close(fd);
- i2cfd = -2;
- return HAL_ERROR_IO_SETUP_FAILED;
+ if (fd >= 0)
+ close(fd);
+ i2cfd = -2;
+ return HAL_ERROR_IO_SETUP_FAILED;
}
static hal_error_t i2c_write(const uint8_t *buf, size_t len)
{
- hal_error_t err;
+ hal_error_t err;
- if ((err = i2c_open()) != HAL_OK)
- return err;
+ if ((err = i2c_open()) != HAL_OK)
+ return err;
- dump("write ", buf, len);
+ dump("write ", buf, len);
- if (write(i2cfd, buf, len) != len) {
- if (debug)
- perror("i2c write failed");
- return HAL_ERROR_IO_OS_ERROR;
- }
+ if (write(i2cfd, buf, len) != len) {
+ if (debug)
+ perror("i2c write failed");
+ return HAL_ERROR_IO_OS_ERROR;
+ }
- return HAL_OK;
+ return HAL_OK;
}
static hal_error_t i2c_read(uint8_t *b)
{
- hal_error_t err;
-
- if ((err = i2c_open()) != HAL_OK)
- return err;
-
- /*
- * read() on the i2c device only returns one byte at a time,
- * and hal_io_get_resp() needs to parse the response one byte at a time
- */
- if (read(i2cfd, b, 1) != 1) {
- if (debug)
- perror("i2c read failed");
- return HAL_ERROR_IO_OS_ERROR;
- }
-
- return 0;
+ hal_error_t err;
+
+ if ((err = i2c_open()) != HAL_OK)
+ return err;
+
+ /*
+ * read() on the i2c device only returns one byte at a time,
+ * and hal_io_get_resp() needs to parse the response one byte at a time
+ */
+ if (read(i2cfd, b, 1) != 1) {
+ if (debug)
+ perror("i2c read failed");
+ return HAL_ERROR_IO_OS_ERROR;
+ }
+
+ return 0;
}
-/* ---------------- test-case low-level code ---------------- */
/* coretest command codes */
#define SOC 0x55
@@ -170,207 +168,198 @@ static hal_error_t i2c_read(uint8_t *b)
static hal_error_t hal_io_send_write_cmd(off_t offset, const uint8_t *data)
{
- uint8_t buf[9] = { SOC, WRITE_CMD, (offset >> 8) & 0xff, offset & 0xff,
- data[0], data[1], data[2], data[3], EOC };
-
- return i2c_write(buf, sizeof(buf));
+ uint8_t buf[9] = { SOC, WRITE_CMD, (offset >> 8) & 0xff, offset & 0xff,
+ data[0], data[1], data[2], data[3], EOC };
+ return i2c_write(buf, sizeof(buf));
}
static hal_error_t hal_io_send_read_cmd(off_t offset)
{
- uint8_t buf[5] = { SOC, READ_CMD, (offset >> 8) & 0xff, offset & 0xff, EOC };
-
- return i2c_write(buf, sizeof(buf));
+ uint8_t buf[5] = { SOC, READ_CMD, (offset >> 8) & 0xff, offset & 0xff, EOC };
+ return i2c_write(buf, sizeof(buf));
}
static hal_error_t hal_io_get_resp(uint8_t *buf, size_t len)
{
- hal_error_t err;
- int i;
-
- for (i = 0; i < len; ++i) {
- if ((err = i2c_read(&buf[i])) != HAL_OK)
- return err;
- if ((i == 0) && (buf[i] != SOR)) {
- /* we've gotten out of sync, and there's probably nothing we can do */
- if (debug)
- fprintf(stderr, "response byte 0: expected 0x%02x (SOR), got 0x%02x\n",
- SOR, buf[0]);
- return HAL_ERROR_IO_UNEXPECTED;
- }
- else if (i == 1) { /* response code */
- switch (buf[i]) {
- case READ_OK:
- len = 9;
- break;
- case WRITE_OK:
- len = 5;
- break;
- case RESET_OK:
- len = 3;
- break;
- case ERROR:
- case UNKNOWN:
- len = 4;
- break;
- default:
- /* we've gotten out of sync, and there's probably nothing we can do */
- if (debug)
- fprintf(stderr, "unknown response code 0x%02x\n", buf[i]);
- return HAL_ERROR_IO_UNEXPECTED;
- }
- }
+ hal_error_t err;
+ int i;
+
+ for (i = 0; i < len; ++i) {
+
+ if ((err = i2c_read(&buf[i])) != HAL_OK)
+ return err;
+
+ if ((i == 0) && (buf[i] != SOR))
+ /* We've gotten out of sync, and there's probably nothing we can do */
+ return HAL_ERROR_IO_UNEXPECTED;
+
+ if (i == 1) { /* response code */
+ switch (buf[i]) {
+ case READ_OK:
+ len = 9;
+ break;
+ case WRITE_OK:
+ len = 5;
+ break;
+ case RESET_OK:
+ len = 3;
+ break;
+ case ERROR:
+ case UNKNOWN:
+ len = 4;
+ break;
+ default:
+ /* we've gotten out of sync, and there's probably nothing we can do */
+ return HAL_ERROR_IO_UNEXPECTED;
+ }
}
+ }
- dump("read ", buf, len);
+ dump("read ", buf, len);
- return HAL_OK;
+ return HAL_OK;
}
static hal_error_t hal_io_compare(uint8_t *buf, const uint8_t *expected, size_t len)
{
- int i;
+ size_t i;
- /* start at byte 1 because SOR has already been tested */
- for (i = 1; i < len; ++i) {
- if (buf[i] != expected[i]) {
- fprintf(stderr, "response byte %d: expected 0x%02x, got 0x%02x\n",
- i, expected[i], buf[i]);
- return HAL_ERROR_IO_UNEXPECTED;
- }
- }
+ /* start at byte 1 because SOR has already been tested */
+ for (i = 1; i < len; ++i) {
+ if (buf[i] != expected[i])
+ return HAL_ERROR_IO_UNEXPECTED;
+ }
- return HAL_OK;
+ return HAL_OK;
}
static hal_error_t hal_io_get_write_resp(off_t offset)
{
- uint8_t buf[5];
- uint8_t expected[5] = { SOR, WRITE_OK, (offset >> 8) & 0xff, offset & 0xff, EOR };
- hal_error_t err;
+ uint8_t buf[5];
+ uint8_t expected[5] = { SOR, WRITE_OK, (offset >> 8) & 0xff, offset & 0xff, EOR };
+ hal_error_t err;
- if ((err = hal_io_get_resp(buf, sizeof(buf))) != HAL_OK)
- return err;
+ if ((err = hal_io_get_resp(buf, sizeof(buf))) != HAL_OK)
+ return err;
- return hal_io_compare(buf, expected, sizeof(expected));
+ return hal_io_compare(buf, expected, sizeof(expected));
}
static hal_error_t hal_io_get_read_resp(off_t offset, uint8_t *data)
{
- uint8_t buf[9];
- uint8_t expected[4] = { SOR, READ_OK, (offset >> 8) & 0xff, offset & 0xff };
- hal_error_t err;
+ uint8_t buf[9];
+ uint8_t expected[4] = { SOR, READ_OK, (offset >> 8) & 0xff, offset & 0xff };
+ hal_error_t err;
- if ((err = hal_io_get_resp(buf, sizeof(buf))) != HAL_OK ||
- (err = hal_io_compare(buf, expected, 4)) != HAL_OK)
- return err;
+ if ((err = hal_io_get_resp(buf, sizeof(buf))) != HAL_OK ||
+ (err = hal_io_compare(buf, expected, 4)) != HAL_OK)
+ return err;
- if (buf[8] != EOR)
- return HAL_ERROR_IO_UNEXPECTED;
+ if (buf[8] != EOR)
+ return HAL_ERROR_IO_UNEXPECTED;
- data[0] = buf[4];
- data[1] = buf[5];
- data[2] = buf[6];
- data[3] = buf[7];
+ data[0] = buf[4];
+ data[1] = buf[5];
+ data[2] = buf[6];
+ data[3] = buf[7];
- return HAL_OK;
+ return HAL_OK;
}
static hal_error_t hal_io_get_read_resp_expected(off_t offset, const uint8_t *data)
{
- uint8_t buf[9];
- uint8_t expected[9] = { SOR, READ_OK, (offset >> 8) & 0xff, offset & 0xff,
- data[0], data[1], data[2], data[3], EOR };
- hal_error_t err;
+ uint8_t buf[9];
+ uint8_t expected[9] = { SOR, READ_OK, (offset >> 8) & 0xff, offset & 0xff,
+ data[0], data[1], data[2], data[3], EOR };
+ hal_error_t err;
- dump("expect", expected, 9);
+ dump("expect", expected, 9);
- if ((err = hal_io_get_resp(buf, sizeof(buf))) != HAL_OK)
- return err;
+ if ((err = hal_io_get_resp(buf, sizeof(buf))) != HAL_OK)
+ return err;
- return hal_io_compare(buf, expected, sizeof(buf));
+ return hal_io_compare(buf, expected, sizeof(buf));
}
hal_error_t hal_io_write(off_t offset, const uint8_t *buf, size_t len)
{
- hal_error_t err;
+ hal_error_t err;
- for (; len > 0; offset++, buf += 4, len -= 4)
- if ((err = hal_io_send_write_cmd(offset, buf)) != HAL_OK ||
- (err = hal_io_get_write_resp(offset)) != HAL_OK)
- return err;
+ for (; len > 0; offset++, buf += 4, len -= 4)
+ if ((err = hal_io_send_write_cmd(offset, buf)) != HAL_OK ||
+ (err = hal_io_get_write_resp(offset)) != HAL_OK)
+ return err;
- return HAL_OK;
+ return HAL_OK;
}
hal_error_t hal_io_read(off_t offset, uint8_t *buf, size_t len)
{
- hal_error_t err;
+ hal_error_t err;
- for (; len > 0; offset++, buf += 4, len -= 4)
- if ((err = hal_io_send_read_cmd(offset)) != HAL_OK ||
- (err = hal_io_get_read_resp(offset, buf)) != HAL_OK)
- return err;
+ for (; len > 0; offset++, buf += 4, len -= 4)
+ if ((err = hal_io_send_read_cmd(offset)) != HAL_OK ||
+ (err = hal_io_get_read_resp(offset, buf)) != HAL_OK)
+ return err;
- return HAL_OK;
+ return HAL_OK;
}
hal_error_t hal_io_expected(off_t offset, const uint8_t *buf, size_t len)
{
- hal_error_t err;
+ hal_error_t err;
- for (; len > 0; offset++, buf += 4, len -= 4)
- if ((err = hal_io_send_read_cmd(offset)) != HAL_OK ||
- (err = hal_io_get_read_resp_expected(offset, buf)) != HAL_OK)
- return err;
+ for (; len > 0; offset++, buf += 4, len -= 4)
+ if ((err = hal_io_send_read_cmd(offset)) != HAL_OK ||
+ (err = hal_io_get_read_resp_expected(offset, buf)) != HAL_OK)
+ return err;
- return HAL_OK;
+ return HAL_OK;
}
hal_error_t hal_io_init(off_t offset)
{
- uint8_t buf[4] = { 0, 0, 0, CTRL_INIT };
-
- return hal_io_write(offset, buf, 4);
+ uint8_t buf[4] = { 0, 0, 0, CTRL_INIT };
+ return hal_io_write(offset, buf, 4);
}
hal_error_t hal_io_next(off_t offset)
{
- uint8_t buf[4] = { 0, 0, 0, CTRL_NEXT };
-
- return hal_io_write(offset, buf, 4);
+ uint8_t buf[4] = { 0, 0, 0, CTRL_NEXT };
+ return hal_io_write(offset, buf, 4);
}
hal_error_t hal_io_wait(off_t offset, uint8_t status, int *count)
{
- hal_error_t err;
- uint8_t buf[4];
- int i;
+ hal_error_t err;
+ uint8_t buf[4];
+ int i;
+
+ for (i = 1; ; ++i) {
+
+ if (count && (*count > 0) && (i >= *count))
+ return HAL_ERROR_IO_TIMEOUT;
+
+ if ((err = hal_io_read(offset, buf, 4)) != HAL_OK)
+ return err;
+
+ if (buf[3] & status) {
+ if (count)
+ *count = i;
+ return HAL_OK;
- for (i = 1; ; ++i) {
- if (count && (*count > 0) && (i >= *count)) {
- if (debug)
- fprintf(stderr, "hal_io_wait timed out\n");
- return HAL_ERROR_IO_TIMEOUT;
- }
- if ((err = hal_io_read(offset, buf, 4)) != HAL_OK)
- return err;
- if (buf[3] & status) {
- if (count)
- *count = i;
- return HAL_OK;
- }
}
+ }
}
hal_error_t hal_io_wait_ready(off_t offset)
{
- int limit = 10;
- return hal_io_wait(offset, STATUS_READY, &limit);
+ int limit = 10;
+ return hal_io_wait(offset, STATUS_READY, &limit);
}
hal_error_t hal_io_wait_valid(off_t offset)
{
- int limit = 10;
- return hal_io_wait(offset, STATUS_VALID, &limit);
+ int limit = 10;
+ return hal_io_wait(offset, STATUS_VALID, &limit);
}
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