[hw/hmac] Update hmac sha256 code snippet
Update code snippet to match current format of auto generated register
macros.
diff --git a/hw/ip/hmac/doc/hmac.md b/hw/ip/hmac/doc/hmac.md
index acdeab1..f7dc94e 100644
--- a/hw/ip/hmac/doc/hmac.md
+++ b/hw/ip/hmac/doc/hmac.md
@@ -236,27 +236,26 @@
message FIFO then writes next.
```c
-void sha256_hash(uint32 *msg, unsigned int msg_len, uint32 *hash) {
- unsigned int written;
-
+void sha256_hash(uint32_t *msg, uint32_t msg_len, uint32_t *hash) {
// Initiate hash: hash_start
- REG32(HMAC_CMD(0)) = (1 << HMAC_HASH_START_LSB);
+ REG32(HMAC_CMD(0)) = (1 << HMAC_CMD_HASH_START);
// write the message: below example assumes word-aligned access
- for (written = 0 ; written < (msg_len >> 3) ; written += 4) {
+ for (uint32_t written = 0 ; written < (msg_len >> 3) ; written += 4) {
while((REG32(HMAC_STATUS(0)) >> HMAC_STATUS_FIFO_FULL) & 0x1) ;
// Any write data from HMAC_MSG_FIFO_OFFSET to HMAC_MSG_FIFO_SIZE
// is written to the message FIFO
- REG32(HMAC_MSG_FIFO_OFFSET(0)) = *(msg+(written/4));
+ REG32(HMAC_MSG_FIFO(0)) = *(msg+(written/4));
}
// Completes hash: hash_process
- REG32(HMAC_CMD(0)) = (1 << HMAC_HASH_PROCESS_LSB);
+ REG32(HMAC_CMD(0)) = (1 << HMAC_CMD_HASH_PROCESS);
- while(0 == (REG32(HMAC_INTR_STATE(0)) >> HMAC_INTR_STATE_HMAC_DONE_LSB) & 0x1);
+ while(0 == (REG32(HMAC_INTR_STATE(0)) >> HMAC_INTR_STATE_HMAC_DONE) & 0x1);
- REG32(HMAC_INTR_STATE(0)) = 1 << HMAC_INTR_STATE_HMAC_DONE_LSB;
+ REG32(HMAC_INTR_STATE(0)) = 1 << HMAC_INTR_STATE_HMAC_DONE;
+ // Read the digest
for (int i = 0 ; i < 8 ; i++) {
*(hash + i) = REG32(HMAC_DIGEST0(0) + (i << 2));
}
@@ -281,4 +280,3 @@
{{% section2 Register Table }}
{{% registers x }}
-
