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Harald Welte gerrit-no-reply at lists.osmocom.orgHarald Welte has uploaded this change for review. ( https://gerrit.osmocom.org/13710 Change subject: obtain chip-unique serial number and print it during startup. ...................................................................... obtain chip-unique serial number and print it during startup. Change-Id: I298942e12f9ffd6f571555253fda160baece5c6c --- M sysmoOCTSIM/main.c 1 file changed, 36 insertions(+), 0 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-ccid-firmware refs/changes/10/13710/1 diff --git a/sysmoOCTSIM/main.c b/sysmoOCTSIM/main.c index 843652b..1e34e20 100644 --- a/sysmoOCTSIM/main.c +++ b/sysmoOCTSIM/main.c @@ -19,6 +19,7 @@ #include <stdlib.h> #include <stdio.h> #include <parts.h> +#include <errno.h> #include <hal_cache.h> #include <hri_port_e54.h> @@ -304,9 +305,43 @@ extern void testmode_init(void); +/* Section 9.6 of SAMD5x/E5x Family Data Sheet */ +static int get_chip_unique_serial(uint8_t *out, size_t len) +{ + uint32_t *out32 = (uint32_t *)out; + if (len < 16) + return -EINVAL; + + out32[0] = *(uint32_t *)0x008061fc; + out32[1] = *(uint32_t *)0x00806010; + out32[2] = *(uint32_t *)0x00806014; + out32[3] = *(uint32_t *)0x00806018; + + return 0; +} + +/* same as get_chip_unique_serial but in hex-string format */ +static int get_chip_unique_serial_str(char *out, size_t len) +{ + uint8_t buf[16]; + int rc; + + if (len < 16*2 + 1) + return -EINVAL; + + rc = get_chip_unique_serial(buf, sizeof(buf)); + if (rc < 0) + return rc; + osmo_hexdump_buf(out, len, buf, sizeof(buf), NULL, false); + return 0; +} + int main(void) { + char sernr_buf[16*2+1]; + atmel_start_init(); + get_chip_unique_serial_str(sernr_buf, sizeof(sernr_buf)); usart_sync_enable(&UART_debug); @@ -324,6 +359,7 @@ testmode_init(); printf("\r\n\r\nsysmocom sysmoOCTSIM\r\n"); + printf("Chip-Id %s\r\n", sernr_buf); command_print_prompt(); while (true) { // main loop -- To view, visit https://gerrit.osmocom.org/13710 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-ccid-firmware Gerrit-Branch: master Gerrit-MessageType: newchange Gerrit-Change-Id: I298942e12f9ffd6f571555253fda160baece5c6c Gerrit-Change-Number: 13710 Gerrit-PatchSet: 1 Gerrit-Owner: Harald Welte <laforge at gnumonks.org> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20190419/582e634c/attachment.htm>