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 | 48 |
1 files changed, 36 insertions, 12 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..89ffb89e1932 100644 --- a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_transition.c +++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_transition.c @@ -184,17 +184,28 @@ enum mod_hdcp_status mod_hdcp_hdcp2_transition(struct mod_hdcp *hdcp, callback_in_ms(0, output); set_state_id(hdcp, output, H2_A2_LOCALITY_CHECK); break; - case H2_A2_LOCALITY_CHECK: + case H2_A2_LOCALITY_CHECK: { + const bool use_fw = hdcp->config.ddc.funcs.atomic_write_poll_read_i2c + && !adjust->hdcp2.force_sw_locality_check; + + /* + * 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 + */ 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 - */ + (!use_fw && input->lc_init_write != PASS) || + (!use_fw && input->l_prime_available_poll != PASS)) { + fail_and_restart_in_ms(0, &status, output); + break; + } else if (input->l_prime_read != PASS) { + if (use_fw && hdcp->config.debug.lc_enable_sw_fallback) { + adjust->hdcp2.force_sw_locality_check = true; + callback_in_ms(0, output); + break; + } + fail_and_restart_in_ms(0, &status, output); break; } else if (input->l_prime_validation != PASS) { @@ -205,6 +216,7 @@ enum mod_hdcp_status mod_hdcp_hdcp2_transition(struct mod_hdcp *hdcp, callback_in_ms(0, output); set_state_id(hdcp, output, H2_A3_EXCHANGE_KS_AND_TEST_FOR_REPEATER); break; + } case H2_A3_EXCHANGE_KS_AND_TEST_FOR_REPEATER: if (input->eks_prepare != PASS || input->eks_write != PASS) { @@ -498,14 +510,25 @@ enum mod_hdcp_status mod_hdcp_hdcp2_dp_transition(struct mod_hdcp *hdcp, callback_in_ms(0, output); set_state_id(hdcp, output, D2_A2_LOCALITY_CHECK); break; - case D2_A2_LOCALITY_CHECK: + case D2_A2_LOCALITY_CHECK: { + const bool use_fw = hdcp->config.ddc.funcs.atomic_write_poll_read_aux + && !adjust->hdcp2.force_sw_locality_check; + if (hdcp->state.stay_count > 10 || input->lc_init_prepare != PASS || - input->lc_init_write != PASS || - input->l_prime_read != PASS) { + (!use_fw && input->lc_init_write != PASS)) { /* 1A-12: consider invalid l' a failure */ fail_and_restart_in_ms(0, &status, output); break; + } else if (input->l_prime_read != PASS) { + if (use_fw && hdcp->config.debug.lc_enable_sw_fallback) { + adjust->hdcp2.force_sw_locality_check = true; + callback_in_ms(0, output); + break; + } + + fail_and_restart_in_ms(0, &status, output); + break; } else if (input->l_prime_validation != PASS) { callback_in_ms(0, output); increment_stay_counter(hdcp); @@ -514,6 +537,7 @@ enum mod_hdcp_status mod_hdcp_hdcp2_dp_transition(struct mod_hdcp *hdcp, callback_in_ms(0, output); set_state_id(hdcp, output, D2_A34_EXCHANGE_KS_AND_TEST_FOR_REPEATER); break; + } case D2_A34_EXCHANGE_KS_AND_TEST_FOR_REPEATER: if (input->eks_prepare != PASS || input->eks_write != PASS) { |