diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_transition.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_transition.c | 53 |
1 files changed, 40 insertions, 13 deletions
diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_transition.c b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_transition.c index c5f6c11de7e5..9316312a4df5 100644 --- a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_transition.c +++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_transition.c @@ -185,19 +185,32 @@ enum mod_hdcp_status mod_hdcp_hdcp2_transition(struct mod_hdcp *hdcp, set_state_id(hdcp, output, H2_A2_LOCALITY_CHECK); break; case H2_A2_LOCALITY_CHECK: + /* 1A-05: consider disconnection after LC init a failure */ if (hdcp->state.stay_count > 10 || - input->lc_init_prepare != PASS || - input->lc_init_write != PASS || - input->l_prime_available_poll != PASS || - input->l_prime_read != PASS) { - /* - * 1A-05: consider disconnection after LC init a failure - * 1A-13-1: consider invalid l' a failure - * 1A-13-2: consider l' timeout a failure - */ + input->lc_init_prepare != PASS) { + fail_and_restart_in_ms(0, &status, output); + break; + } else if (adjust->hdcp2.use_fw_locality_check && + input->l_prime_combo_read != PASS) { + /* 1A-13-2: consider l' timeout a failure */ + if (adjust->hdcp2.use_sw_locality_fallback) { + /* switch to software locality check */ + adjust->hdcp2.use_fw_locality_check = 0; + callback_in_ms(0, output); + increment_stay_counter(hdcp); + break; + } + fail_and_restart_in_ms(0, &status, output); + break; + } else if (!adjust->hdcp2.use_fw_locality_check && + (input->lc_init_write != PASS || + input->l_prime_available_poll != PASS || + input->l_prime_read != PASS)) { + /* 1A-13-2: consider l' timeout a failure */ fail_and_restart_in_ms(0, &status, output); break; } else if (input->l_prime_validation != PASS) { + /* 1A-13-1: consider invalid l' a failure */ callback_in_ms(0, output); increment_stay_counter(hdcp); break; @@ -500,13 +513,27 @@ enum mod_hdcp_status mod_hdcp_hdcp2_dp_transition(struct mod_hdcp *hdcp, break; case D2_A2_LOCALITY_CHECK: if (hdcp->state.stay_count > 10 || - input->lc_init_prepare != PASS || - input->lc_init_write != PASS || - input->l_prime_read != PASS) { - /* 1A-12: consider invalid l' a failure */ + input->lc_init_prepare != PASS) { + fail_and_restart_in_ms(0, &status, output); + break; + } else if (adjust->hdcp2.use_fw_locality_check && + input->l_prime_combo_read != PASS) { + if (adjust->hdcp2.use_sw_locality_fallback) { + /* switch to software locality check */ + adjust->hdcp2.use_fw_locality_check = 0; + callback_in_ms(0, output); + increment_stay_counter(hdcp); + break; + } + fail_and_restart_in_ms(0, &status, output); + break; + } else if (!adjust->hdcp2.use_fw_locality_check && + (input->lc_init_write != PASS || + input->l_prime_read != PASS)) { fail_and_restart_in_ms(0, &status, output); break; } else if (input->l_prime_validation != PASS) { + /* 1A-12: consider invalid l' a failure */ callback_in_ms(0, output); increment_stay_counter(hdcp); break; |