From a8f4ad9f26a35a786e17498fa4d0a513b9412856 Mon Sep 17 00:00:00 2001 From: Mary Ruthven Date: Tue, 15 May 2018 19:07:18 -0700 Subject: gsctool: add support for wp vendor command Add gsctool support for getting the full wp setting from cr50. BUG=b:77543904 BRANCH=cr50 TEST=change wp and verify gsctool shows the correct setting Change-Id: I192b9f23651076cc30e3156223cc3fd0f43b0621 Signed-off-by: Mary Ruthven Reviewed-on: https://chromium-review.googlesource.com/1060642 Commit-Ready: ChromeOS CL Exonerator Bot Tested-by: Mary Ruthven Reviewed-by: Vadim Bendebury --- extra/usb_updater/gsctool.c | 51 +++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 47 insertions(+), 4 deletions(-) diff --git a/extra/usb_updater/gsctool.c b/extra/usb_updater/gsctool.c index 0f06f79ca1..082b1556bc 100644 --- a/extra/usb_updater/gsctool.c +++ b/extra/usb_updater/gsctool.c @@ -196,7 +196,7 @@ struct upgrade_pkt { static int verbose_mode; static uint32_t protocol_version; static char *progname; -static char *short_opts = "abcd:F:fhIikO:oPprstUuVv"; +static char *short_opts = "abcd:F:fhIikO:oPprstUuVvw"; static const struct option long_opts[] = { /* name hasarg *flag val */ {"any", 0, NULL, 'a'}, @@ -219,6 +219,7 @@ static const struct option long_opts[] = { {"trunks_send", 0, NULL, 't'}, {"verbose", 0, NULL, 'V'}, {"version", 0, NULL, 'v'}, + {"wp", 0, NULL, 'w'}, {"upstart", 0, NULL, 'u'}, {}, }; @@ -543,6 +544,7 @@ static void usage(int errs) "Upstart mode (strict header checks)\n" " -V,--verbose Enable debug messages\n" " -v,--version Report this utility version\n" + " -w,--wp Get the current wp setting\n" "\n", progname, VID, PID); exit(errs ? update_error : noop); @@ -1768,6 +1770,40 @@ static void process_ccd_state(struct transfer_descriptor *td, int ccd_unlock, poll_for_pp(td, VENDOR_CC_CCD, CCDV_PP_POLL_OPEN); } +static void process_wp(struct transfer_descriptor *td) +{ + size_t response_size; + uint8_t response; + int rv = 0; + + response_size = sizeof(response); + + printf("Getting WP\n"); + + rv = send_vendor_command(td, VENDOR_CC_WP, NULL, 0, + &response, &response_size); + if (rv != VENDOR_RC_SUCCESS) { + fprintf(stderr, "Error %d getting write protect\n", rv); + exit(update_error); + } + if (response_size != sizeof(response)) { + fprintf(stderr, "Unexpected response size %zd while getting " + "write protect\n", + response_size); + exit(update_error); + } + + printf("WP: %08x\n", response); + printf("Flash WP: %s%s\n", + response & WPV_FORCE ? "forced " : "", + response & WPV_ENABLE ? "enabled" : "disabled"); + printf(" at boot: %s\n", + !(response & WPV_ATBOOT_SET) ? "follow_batt_pres" : + response & WPV_ATBOOT_ENABLE ? "forced enabled" : + "forced disabled"); +} + + void process_bid(struct transfer_descriptor *td, enum board_id_action bid_action, struct board_id *bid) @@ -1952,6 +1988,7 @@ int main(int argc, char *argv[]) int ccd_unlock = 0; int ccd_lock = 0; int ccd_info = 0; + int wp = 0; int try_all_transfer = 0; const char *exclusive_opt_error = "Options -a, -s and -t are mutually exclusive\n"; @@ -2075,6 +2112,9 @@ int main(int argc, char *argv[]) case 'v': report_version(); /* This will call exit(). */ break; + case 'w': + wp = 1; + break; case 0: /* auto-handled option */ break; case '?': @@ -2111,7 +2151,8 @@ int main(int argc, char *argv[]) !password && !rma && !show_fw_ver && - !openbox_desc_file) { + !openbox_desc_file && + !wp) { if (optind >= argc) { fprintf(stderr, "\nERROR: Missing required \n\n"); @@ -2138,9 +2179,9 @@ int main(int argc, char *argv[]) if (((bid_action != bid_none) + !!rma + !!password + !!ccd_open + !!ccd_unlock + !!ccd_lock + !!ccd_info + - !!openbox_desc_file + !!factory_mode) > 2) { + !!openbox_desc_file + !!factory_mode + !!wp) > 2) { fprintf(stderr, "ERROR: " - "options -F, -I, -i, -k, -O, -o, -P, -r, and -u " + "options -F, -I, -i, -k, -O, -o, -P, -r, -u and -w " "are mutually exclusive\n"); exit(update_error); } @@ -2176,6 +2217,8 @@ int main(int argc, char *argv[]) if (factory_mode) process_factory_mode(&td, factory_mode_arg); + if (wp) + process_wp(&td); if (corrupt_inactive_rw) invalidate_inactive_rw(&td); -- cgit v1.2.1