| Message ID | 20230921053800.273402-1-suraj.kandpal@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | None | expand |
> -----Original Message----- > From: Kandpal, Suraj <suraj.kandpal@intel.com> > Sent: Thursday, September 21, 2023 11:08 AM > To: intel-gfx@lists.freedesktop.org > Cc: Shankar, Uma <uma.shankar@intel.com>; Nikula, Jani > <jani.nikula@intel.com>; Kandpal, Suraj <suraj.kandpal@intel.com> > Subject: [PATCH v4 2/2] drm/i915/hdcp: Move common message filling function > to its own file > > Create a new file intel_hdcp_gsc_message that contain functions which fill the > hdcp messages we send to gsc cs this refactor will help us reuse code for Xe later > on > > --v2 > -add the missed file for proper build > > --v3 > -use forward declarations instead of #includes [Jani] > > --v4 > -move linux/err.h to intel_hdcp_gsc_message.c from intel_hdcp_gsc_message.h > [Jani] > > Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com> > --- > drivers/gpu/drm/i915/Makefile | 1 + > drivers/gpu/drm/i915/display/intel_hdcp_gsc.c | 615 +----------------- > .../drm/i915/display/intel_hdcp_gsc_message.c | 592 +++++++++++++++++ > .../drm/i915/display/intel_hdcp_gsc_message.h | 72 ++ > 4 files changed, 682 insertions(+), 598 deletions(-) create mode 100644 > drivers/gpu/drm/i915/display/intel_hdcp_gsc_message.c > create mode 100644 drivers/gpu/drm/i915/display/intel_hdcp_gsc_message.h > > diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile > index 1b2e02e9d92c..27b3da6e0e43 100644 > --- a/drivers/gpu/drm/i915/Makefile > +++ b/drivers/gpu/drm/i915/Makefile > @@ -265,6 +265,7 @@ i915-y += \ > display/intel_global_state.o \ > display/intel_hdcp.o \ > display/intel_hdcp_gsc.o \ > + display/intel_hdcp_gsc_message.o \ > display/intel_hotplug.o \ > display/intel_hotplug_irq.o \ > display/intel_hti.o \ > diff --git a/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c > b/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c > index d355d610bc9f..18117b789b16 100644 > --- a/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c > +++ b/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c > @@ -11,6 +11,7 @@ > #include "i915_drv.h" > #include "i915_utils.h" > #include "intel_hdcp_gsc.h" > +#include "intel_hdcp_gsc_message.h" > > bool intel_hdcp_gsc_cs_required(struct drm_i915_private *i915) { @@ -31,604 > +32,6 @@ bool intel_hdcp_gsc_check_status(struct drm_i915_private *i915) > return true; > } > > -static int > -gsc_hdcp_initiate_session(struct device *dev, struct hdcp_port_data *data, > - struct hdcp2_ake_init *ake_data) > -{ > - struct wired_cmd_initiate_hdcp2_session_in session_init_in = { { 0 } }; > - struct wired_cmd_initiate_hdcp2_session_out > - session_init_out = { { 0 } }; > - struct drm_i915_private *i915; > - ssize_t byte; > - > - if (!dev || !data || !ake_data) > - return -EINVAL; > - > - i915 = kdev_to_i915(dev); > - if (!i915) { > - dev_err(dev, "DRM not initialized, aborting HDCP.\n"); > - return -ENODEV; > - } > - > - session_init_in.header.api_version = HDCP_API_VERSION; > - session_init_in.header.command_id = > WIRED_INITIATE_HDCP2_SESSION; > - session_init_in.header.status = FW_HDCP_STATUS_SUCCESS; > - session_init_in.header.buffer_len = > - > WIRED_CMD_BUF_LEN_INITIATE_HDCP2_SESSION_IN; > - > - session_init_in.port.integrated_port_type = data->port_type; > - session_init_in.port.physical_port = (u8)data->hdcp_ddi; > - session_init_in.port.attached_transcoder = (u8)data->hdcp_transcoder; > - session_init_in.protocol = data->protocol; > - > - byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&session_init_in, > - sizeof(session_init_in), > - (u8 *)&session_init_out, > - sizeof(session_init_out)); > - if (byte < 0) { > - drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. > %zd\n", byte); > - return byte; > - } > - > - if (session_init_out.header.status != FW_HDCP_STATUS_SUCCESS) { > - drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. Status: > 0x%X\n", > - WIRED_INITIATE_HDCP2_SESSION, > - session_init_out.header.status); > - return -EIO; > - } > - > - ake_data->msg_id = HDCP_2_2_AKE_INIT; > - ake_data->tx_caps = session_init_out.tx_caps; > - memcpy(ake_data->r_tx, session_init_out.r_tx, HDCP_2_2_RTX_LEN); > - > - return 0; > -} > - > -static int > -gsc_hdcp_verify_receiver_cert_prepare_km(struct device *dev, > - struct hdcp_port_data *data, > - struct hdcp2_ake_send_cert *rx_cert, > - bool *km_stored, > - struct hdcp2_ake_no_stored_km > - *ek_pub_km, > - size_t *msg_sz) > -{ > - struct wired_cmd_verify_receiver_cert_in verify_rxcert_in = { { 0 } }; > - struct wired_cmd_verify_receiver_cert_out verify_rxcert_out = { { 0 } }; > - struct drm_i915_private *i915; > - ssize_t byte; > - > - if (!dev || !data || !rx_cert || !km_stored || !ek_pub_km || !msg_sz) > - return -EINVAL; > - > - i915 = kdev_to_i915(dev); > - if (!i915) { > - dev_err(dev, "DRM not initialized, aborting HDCP.\n"); > - return -ENODEV; > - } > - > - verify_rxcert_in.header.api_version = HDCP_API_VERSION; > - verify_rxcert_in.header.command_id = WIRED_VERIFY_RECEIVER_CERT; > - verify_rxcert_in.header.status = FW_HDCP_STATUS_SUCCESS; > - verify_rxcert_in.header.buffer_len = > - > WIRED_CMD_BUF_LEN_VERIFY_RECEIVER_CERT_IN; > - > - verify_rxcert_in.port.integrated_port_type = data->port_type; > - verify_rxcert_in.port.physical_port = (u8)data->hdcp_ddi; > - verify_rxcert_in.port.attached_transcoder = (u8)data->hdcp_transcoder; > - > - verify_rxcert_in.cert_rx = rx_cert->cert_rx; > - memcpy(verify_rxcert_in.r_rx, &rx_cert->r_rx, HDCP_2_2_RRX_LEN); > - memcpy(verify_rxcert_in.rx_caps, rx_cert->rx_caps, > HDCP_2_2_RXCAPS_LEN); > - > - byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&verify_rxcert_in, > - sizeof(verify_rxcert_in), > - (u8 *)&verify_rxcert_out, > - sizeof(verify_rxcert_out)); > - if (byte < 0) { > - drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed: > %zd\n", byte); > - return byte; > - } > - > - if (verify_rxcert_out.header.status != FW_HDCP_STATUS_SUCCESS) { > - drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. Status: > 0x%X\n", > - WIRED_VERIFY_RECEIVER_CERT, > - verify_rxcert_out.header.status); > - return -EIO; > - } > - > - *km_stored = !!verify_rxcert_out.km_stored; > - if (verify_rxcert_out.km_stored) { > - ek_pub_km->msg_id = HDCP_2_2_AKE_STORED_KM; > - *msg_sz = sizeof(struct hdcp2_ake_stored_km); > - } else { > - ek_pub_km->msg_id = HDCP_2_2_AKE_NO_STORED_KM; > - *msg_sz = sizeof(struct hdcp2_ake_no_stored_km); > - } > - > - memcpy(ek_pub_km->e_kpub_km, &verify_rxcert_out.ekm_buff, > - sizeof(verify_rxcert_out.ekm_buff)); > - > - return 0; > -} > - > -static int > -gsc_hdcp_verify_hprime(struct device *dev, struct hdcp_port_data *data, > - struct hdcp2_ake_send_hprime *rx_hprime) > -{ > - struct wired_cmd_ake_send_hprime_in send_hprime_in = { { 0 } }; > - struct wired_cmd_ake_send_hprime_out send_hprime_out = { { 0 } }; > - struct drm_i915_private *i915; > - ssize_t byte; > - > - if (!dev || !data || !rx_hprime) > - return -EINVAL; > - > - i915 = kdev_to_i915(dev); > - if (!i915) { > - dev_err(dev, "DRM not initialized, aborting HDCP.\n"); > - return -ENODEV; > - } > - > - send_hprime_in.header.api_version = HDCP_API_VERSION; > - send_hprime_in.header.command_id = WIRED_AKE_SEND_HPRIME; > - send_hprime_in.header.status = FW_HDCP_STATUS_SUCCESS; > - send_hprime_in.header.buffer_len = > WIRED_CMD_BUF_LEN_AKE_SEND_HPRIME_IN; > - > - send_hprime_in.port.integrated_port_type = data->port_type; > - send_hprime_in.port.physical_port = (u8)data->hdcp_ddi; > - send_hprime_in.port.attached_transcoder = (u8)data->hdcp_transcoder; > - > - memcpy(send_hprime_in.h_prime, rx_hprime->h_prime, > - HDCP_2_2_H_PRIME_LEN); > - > - byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&send_hprime_in, > - sizeof(send_hprime_in), > - (u8 *)&send_hprime_out, > - sizeof(send_hprime_out)); > - if (byte < 0) { > - drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. > %zd\n", byte); > - return byte; > - } > - > - if (send_hprime_out.header.status != FW_HDCP_STATUS_SUCCESS) { > - drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. Status: > 0x%X\n", > - WIRED_AKE_SEND_HPRIME, > send_hprime_out.header.status); > - return -EIO; > - } > - > - return 0; > -} > - > -static int > -gsc_hdcp_store_pairing_info(struct device *dev, struct hdcp_port_data *data, > - struct hdcp2_ake_send_pairing_info *pairing_info) > -{ > - struct wired_cmd_ake_send_pairing_info_in pairing_info_in = { { 0 } }; > - struct wired_cmd_ake_send_pairing_info_out pairing_info_out = { { 0 } }; > - struct drm_i915_private *i915; > - ssize_t byte; > - > - if (!dev || !data || !pairing_info) > - return -EINVAL; > - > - i915 = kdev_to_i915(dev); > - if (!i915) { > - dev_err(dev, "DRM not initialized, aborting HDCP.\n"); > - return -ENODEV; > - } > - > - pairing_info_in.header.api_version = HDCP_API_VERSION; > - pairing_info_in.header.command_id = > WIRED_AKE_SEND_PAIRING_INFO; > - pairing_info_in.header.status = FW_HDCP_STATUS_SUCCESS; > - pairing_info_in.header.buffer_len = > - > WIRED_CMD_BUF_LEN_SEND_PAIRING_INFO_IN; > - > - pairing_info_in.port.integrated_port_type = data->port_type; > - pairing_info_in.port.physical_port = (u8)data->hdcp_ddi; > - pairing_info_in.port.attached_transcoder = (u8)data->hdcp_transcoder; > - > - memcpy(pairing_info_in.e_kh_km, pairing_info->e_kh_km, > - HDCP_2_2_E_KH_KM_LEN); > - > - byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&pairing_info_in, > - sizeof(pairing_info_in), > - (u8 *)&pairing_info_out, > - sizeof(pairing_info_out)); > - if (byte < 0) { > - drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. > %zd\n", byte); > - return byte; > - } > - > - if (pairing_info_out.header.status != FW_HDCP_STATUS_SUCCESS) { > - drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. Status: > 0x%X\n", > - WIRED_AKE_SEND_PAIRING_INFO, > - pairing_info_out.header.status); > - return -EIO; > - } > - > - return 0; > -} > - > -static int > -gsc_hdcp_initiate_locality_check(struct device *dev, > - struct hdcp_port_data *data, > - struct hdcp2_lc_init *lc_init_data) > -{ > - struct wired_cmd_init_locality_check_in lc_init_in = { { 0 } }; > - struct wired_cmd_init_locality_check_out lc_init_out = { { 0 } }; > - struct drm_i915_private *i915; > - ssize_t byte; > - > - if (!dev || !data || !lc_init_data) > - return -EINVAL; > - > - i915 = kdev_to_i915(dev); > - if (!i915) { > - dev_err(dev, "DRM not initialized, aborting HDCP.\n"); > - return -ENODEV; > - } > - > - lc_init_in.header.api_version = HDCP_API_VERSION; > - lc_init_in.header.command_id = WIRED_INIT_LOCALITY_CHECK; > - lc_init_in.header.status = FW_HDCP_STATUS_SUCCESS; > - lc_init_in.header.buffer_len = > WIRED_CMD_BUF_LEN_INIT_LOCALITY_CHECK_IN; > - > - lc_init_in.port.integrated_port_type = data->port_type; > - lc_init_in.port.physical_port = (u8)data->hdcp_ddi; > - lc_init_in.port.attached_transcoder = (u8)data->hdcp_transcoder; > - > - byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&lc_init_in, > sizeof(lc_init_in), > - (u8 *)&lc_init_out, sizeof(lc_init_out)); > - if (byte < 0) { > - drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. > %zd\n", byte); > - return byte; > - } > - > - if (lc_init_out.header.status != FW_HDCP_STATUS_SUCCESS) { > - drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. status: > 0x%X\n", > - WIRED_INIT_LOCALITY_CHECK, > lc_init_out.header.status); > - return -EIO; > - } > - > - lc_init_data->msg_id = HDCP_2_2_LC_INIT; > - memcpy(lc_init_data->r_n, lc_init_out.r_n, HDCP_2_2_RN_LEN); > - > - return 0; > -} > - > -static int > -gsc_hdcp_verify_lprime(struct device *dev, struct hdcp_port_data *data, > - struct hdcp2_lc_send_lprime *rx_lprime) > -{ > - struct wired_cmd_validate_locality_in verify_lprime_in = { { 0 } }; > - struct wired_cmd_validate_locality_out verify_lprime_out = { { 0 } }; > - struct drm_i915_private *i915; > - ssize_t byte; > - > - if (!dev || !data || !rx_lprime) > - return -EINVAL; > - > - i915 = kdev_to_i915(dev); > - if (!i915) { > - dev_err(dev, "DRM not initialized, aborting HDCP.\n"); > - return -ENODEV; > - } > - > - verify_lprime_in.header.api_version = HDCP_API_VERSION; > - verify_lprime_in.header.command_id = WIRED_VALIDATE_LOCALITY; > - verify_lprime_in.header.status = FW_HDCP_STATUS_SUCCESS; > - verify_lprime_in.header.buffer_len = > - > WIRED_CMD_BUF_LEN_VALIDATE_LOCALITY_IN; > - > - verify_lprime_in.port.integrated_port_type = data->port_type; > - verify_lprime_in.port.physical_port = (u8)data->hdcp_ddi; > - verify_lprime_in.port.attached_transcoder = (u8)data->hdcp_transcoder; > - > - memcpy(verify_lprime_in.l_prime, rx_lprime->l_prime, > - HDCP_2_2_L_PRIME_LEN); > - > - byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&verify_lprime_in, > - sizeof(verify_lprime_in), > - (u8 *)&verify_lprime_out, > - sizeof(verify_lprime_out)); > - if (byte < 0) { > - drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. > %zd\n", byte); > - return byte; > - } > - > - if (verify_lprime_out.header.status != FW_HDCP_STATUS_SUCCESS) { > - drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: > 0x%X\n", > - WIRED_VALIDATE_LOCALITY, > - verify_lprime_out.header.status); > - return -EIO; > - } > - > - return 0; > -} > - > -static int gsc_hdcp_get_session_key(struct device *dev, > - struct hdcp_port_data *data, > - struct hdcp2_ske_send_eks *ske_data) > -{ > - struct wired_cmd_get_session_key_in get_skey_in = { { 0 } }; > - struct wired_cmd_get_session_key_out get_skey_out = { { 0 } }; > - struct drm_i915_private *i915; > - ssize_t byte; > - > - if (!dev || !data || !ske_data) > - return -EINVAL; > - > - i915 = kdev_to_i915(dev); > - if (!i915) { > - dev_err(dev, "DRM not initialized, aborting HDCP.\n"); > - return -ENODEV; > - } > - > - get_skey_in.header.api_version = HDCP_API_VERSION; > - get_skey_in.header.command_id = WIRED_GET_SESSION_KEY; > - get_skey_in.header.status = FW_HDCP_STATUS_SUCCESS; > - get_skey_in.header.buffer_len = > WIRED_CMD_BUF_LEN_GET_SESSION_KEY_IN; > - > - get_skey_in.port.integrated_port_type = data->port_type; > - get_skey_in.port.physical_port = (u8)data->hdcp_ddi; > - get_skey_in.port.attached_transcoder = (u8)data->hdcp_transcoder; > - > - byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&get_skey_in, > sizeof(get_skey_in), > - (u8 *)&get_skey_out, sizeof(get_skey_out)); > - if (byte < 0) { > - drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. > %zd\n", byte); > - return byte; > - } > - > - if (get_skey_out.header.status != FW_HDCP_STATUS_SUCCESS) { > - drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: > 0x%X\n", > - WIRED_GET_SESSION_KEY, > get_skey_out.header.status); > - return -EIO; > - } > - > - ske_data->msg_id = HDCP_2_2_SKE_SEND_EKS; > - memcpy(ske_data->e_dkey_ks, get_skey_out.e_dkey_ks, > - HDCP_2_2_E_DKEY_KS_LEN); > - memcpy(ske_data->riv, get_skey_out.r_iv, HDCP_2_2_RIV_LEN); > - > - return 0; > -} > - > -static int > -gsc_hdcp_repeater_check_flow_prepare_ack(struct device *dev, > - struct hdcp_port_data *data, > - struct hdcp2_rep_send_receiverid_list > - *rep_topology, > - struct hdcp2_rep_send_ack > - *rep_send_ack) > -{ > - struct wired_cmd_verify_repeater_in verify_repeater_in = { { 0 } }; > - struct wired_cmd_verify_repeater_out verify_repeater_out = { { 0 } }; > - struct drm_i915_private *i915; > - ssize_t byte; > - > - if (!dev || !rep_topology || !rep_send_ack || !data) > - return -EINVAL; > - > - i915 = kdev_to_i915(dev); > - if (!i915) { > - dev_err(dev, "DRM not initialized, aborting HDCP.\n"); > - return -ENODEV; > - } > - > - verify_repeater_in.header.api_version = HDCP_API_VERSION; > - verify_repeater_in.header.command_id = WIRED_VERIFY_REPEATER; > - verify_repeater_in.header.status = FW_HDCP_STATUS_SUCCESS; > - verify_repeater_in.header.buffer_len = > - > WIRED_CMD_BUF_LEN_VERIFY_REPEATER_IN; > - > - verify_repeater_in.port.integrated_port_type = data->port_type; > - verify_repeater_in.port.physical_port = (u8)data->hdcp_ddi; > - verify_repeater_in.port.attached_transcoder = (u8)data- > >hdcp_transcoder; > - > - memcpy(verify_repeater_in.rx_info, rep_topology->rx_info, > - HDCP_2_2_RXINFO_LEN); > - memcpy(verify_repeater_in.seq_num_v, rep_topology->seq_num_v, > - HDCP_2_2_SEQ_NUM_LEN); > - memcpy(verify_repeater_in.v_prime, rep_topology->v_prime, > - HDCP_2_2_V_PRIME_HALF_LEN); > - memcpy(verify_repeater_in.receiver_ids, rep_topology->receiver_ids, > - HDCP_2_2_RECEIVER_IDS_MAX_LEN); > - > - byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&verify_repeater_in, > - sizeof(verify_repeater_in), > - (u8 *)&verify_repeater_out, > - sizeof(verify_repeater_out)); > - if (byte < 0) { > - drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. > %zd\n", byte); > - return byte; > - } > - > - if (verify_repeater_out.header.status != FW_HDCP_STATUS_SUCCESS) { > - drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: > 0x%X\n", > - WIRED_VERIFY_REPEATER, > - verify_repeater_out.header.status); > - return -EIO; > - } > - > - memcpy(rep_send_ack->v, verify_repeater_out.v, > - HDCP_2_2_V_PRIME_HALF_LEN); > - rep_send_ack->msg_id = HDCP_2_2_REP_SEND_ACK; > - > - return 0; > -} > - > -static int gsc_hdcp_verify_mprime(struct device *dev, > - struct hdcp_port_data *data, > - struct hdcp2_rep_stream_ready > *stream_ready) > -{ > - struct wired_cmd_repeater_auth_stream_req_in *verify_mprime_in; > - struct wired_cmd_repeater_auth_stream_req_out > - verify_mprime_out = { { 0 } }; > - struct drm_i915_private *i915; > - ssize_t byte; > - size_t cmd_size; > - > - if (!dev || !stream_ready || !data) > - return -EINVAL; > - > - i915 = kdev_to_i915(dev); > - if (!i915) { > - dev_err(dev, "DRM not initialized, aborting HDCP.\n"); > - return -ENODEV; > - } > - > - cmd_size = struct_size(verify_mprime_in, streams, data->k); > - if (cmd_size == SIZE_MAX) > - return -EINVAL; > - > - verify_mprime_in = kzalloc(cmd_size, GFP_KERNEL); > - if (!verify_mprime_in) > - return -ENOMEM; > - > - verify_mprime_in->header.api_version = HDCP_API_VERSION; > - verify_mprime_in->header.command_id = > WIRED_REPEATER_AUTH_STREAM_REQ; > - verify_mprime_in->header.status = FW_HDCP_STATUS_SUCCESS; > - verify_mprime_in->header.buffer_len = cmd_size - > sizeof(verify_mprime_in->header); > - > - verify_mprime_in->port.integrated_port_type = data->port_type; > - verify_mprime_in->port.physical_port = (u8)data->hdcp_ddi; > - verify_mprime_in->port.attached_transcoder = (u8)data- > >hdcp_transcoder; > - > - memcpy(verify_mprime_in->m_prime, stream_ready->m_prime, > HDCP_2_2_MPRIME_LEN); > - drm_hdcp_cpu_to_be24(verify_mprime_in->seq_num_m, data- > >seq_num_m); > - > - memcpy(verify_mprime_in->streams, data->streams, > - array_size(data->k, sizeof(*data->streams))); > - > - verify_mprime_in->k = cpu_to_be16(data->k); > - > - byte = intel_hdcp_gsc_msg_send(i915, (u8 *)verify_mprime_in, > cmd_size, > - (u8 *)&verify_mprime_out, > - sizeof(verify_mprime_out)); > - kfree(verify_mprime_in); > - if (byte < 0) { > - drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. > %zd\n", byte); > - return byte; > - } > - > - if (verify_mprime_out.header.status != FW_HDCP_STATUS_SUCCESS) { > - drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: > 0x%X\n", > - WIRED_REPEATER_AUTH_STREAM_REQ, > - verify_mprime_out.header.status); > - return -EIO; > - } > - > - return 0; > -} > - > -static int gsc_hdcp_enable_authentication(struct device *dev, > - struct hdcp_port_data *data) > -{ > - struct wired_cmd_enable_auth_in enable_auth_in = { { 0 } }; > - struct wired_cmd_enable_auth_out enable_auth_out = { { 0 } }; > - struct drm_i915_private *i915; > - ssize_t byte; > - > - if (!dev || !data) > - return -EINVAL; > - > - i915 = kdev_to_i915(dev); > - if (!i915) { > - dev_err(dev, "DRM not initialized, aborting HDCP.\n"); > - return -ENODEV; > - } > - > - enable_auth_in.header.api_version = HDCP_API_VERSION; > - enable_auth_in.header.command_id = WIRED_ENABLE_AUTH; > - enable_auth_in.header.status = FW_HDCP_STATUS_SUCCESS; > - enable_auth_in.header.buffer_len = > WIRED_CMD_BUF_LEN_ENABLE_AUTH_IN; > - > - enable_auth_in.port.integrated_port_type = data->port_type; > - enable_auth_in.port.physical_port = (u8)data->hdcp_ddi; > - enable_auth_in.port.attached_transcoder = (u8)data->hdcp_transcoder; > - enable_auth_in.stream_type = data->streams[0].stream_type; > - > - byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&enable_auth_in, > - sizeof(enable_auth_in), > - (u8 *)&enable_auth_out, > - sizeof(enable_auth_out)); > - if (byte < 0) { > - drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. > %zd\n", byte); > - return byte; > - } > - > - if (enable_auth_out.header.status != FW_HDCP_STATUS_SUCCESS) { > - drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: > 0x%X\n", > - WIRED_ENABLE_AUTH, > enable_auth_out.header.status); > - return -EIO; > - } > - > - return 0; > -} > - > -static int > -gsc_hdcp_close_session(struct device *dev, struct hdcp_port_data *data) -{ > - struct wired_cmd_close_session_in session_close_in = { { 0 } }; > - struct wired_cmd_close_session_out session_close_out = { { 0 } }; > - struct drm_i915_private *i915; > - ssize_t byte; > - > - if (!dev || !data) > - return -EINVAL; > - > - i915 = kdev_to_i915(dev); > - if (!i915) { > - dev_err(dev, "DRM not initialized, aborting HDCP.\n"); > - return -ENODEV; > - } > - > - session_close_in.header.api_version = HDCP_API_VERSION; > - session_close_in.header.command_id = WIRED_CLOSE_SESSION; > - session_close_in.header.status = FW_HDCP_STATUS_SUCCESS; > - session_close_in.header.buffer_len = > - WIRED_CMD_BUF_LEN_CLOSE_SESSION_IN; > - > - session_close_in.port.integrated_port_type = data->port_type; > - session_close_in.port.physical_port = (u8)data->hdcp_ddi; > - session_close_in.port.attached_transcoder = (u8)data->hdcp_transcoder; > - > - byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&session_close_in, > - sizeof(session_close_in), > - (u8 *)&session_close_out, > - sizeof(session_close_out)); > - if (byte < 0) { > - drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. > %zd\n", byte); > - return byte; > - } > - > - if (session_close_out.header.status != FW_HDCP_STATUS_SUCCESS) { > - drm_dbg_kms(&i915->drm, "Session Close Failed. status: > 0x%X\n", > - session_close_out.header.status); > - return -EIO; > - } > - > - return 0; > -} > - > -static const struct i915_hdcp_ops gsc_hdcp_ops = { > - .initiate_hdcp2_session = gsc_hdcp_initiate_session, > - .verify_receiver_cert_prepare_km = > - gsc_hdcp_verify_receiver_cert_prepare_km, > - .verify_hprime = gsc_hdcp_verify_hprime, > - .store_pairing_info = gsc_hdcp_store_pairing_info, > - .initiate_locality_check = gsc_hdcp_initiate_locality_check, > - .verify_lprime = gsc_hdcp_verify_lprime, > - .get_session_key = gsc_hdcp_get_session_key, > - .repeater_check_flow_prepare_ack = > - gsc_hdcp_repeater_check_flow_prepare_ack, > - .verify_mprime = gsc_hdcp_verify_mprime, > - .enable_hdcp_authentication = gsc_hdcp_enable_authentication, > - .close_hdcp_session = gsc_hdcp_close_session, > -}; > - > /*This function helps allocate memory for the command that we will send to gsc > cs */ static int intel_hdcp_gsc_initialize_message(struct drm_i915_private *i915, > struct intel_hdcp_gsc_message > *hdcp_message) @@ -681,6 +84,22 @@ static int > intel_hdcp_gsc_initialize_message(struct drm_i915_private *i915, > return err; > } > > +static const struct i915_hdcp_ops gsc_hdcp_ops = { > + .initiate_hdcp2_session = intel_hdcp_gsc_initiate_session, > + .verify_receiver_cert_prepare_km = > + > intel_hdcp_gsc_verify_receiver_cert_prepare_km, > + .verify_hprime = intel_hdcp_gsc_verify_hprime, > + .store_pairing_info = intel_hdcp_gsc_store_pairing_info, > + .initiate_locality_check = intel_hdcp_gsc_initiate_locality_check, > + .verify_lprime = intel_hdcp_gsc_verify_lprime, > + .get_session_key = intel_hdcp_gsc_get_session_key, > + .repeater_check_flow_prepare_ack = > + > intel_hdcp_gsc_repeater_check_flow_prepare_ack, > + .verify_mprime = intel_hdcp_gsc_verify_mprime, > + .enable_hdcp_authentication = intel_hdcp_gsc_enable_authentication, > + .close_hdcp_session = intel_hdcp_gsc_close_session, }; > + > static int intel_hdcp_gsc_hdcp2_init(struct drm_i915_private *i915) { > struct intel_hdcp_gsc_message *hdcp_message; diff --git > a/drivers/gpu/drm/i915/display/intel_hdcp_gsc_message.c > b/drivers/gpu/drm/i915/display/intel_hdcp_gsc_message.c > new file mode 100644 > index 000000000000..3938ace3ad60 > --- /dev/null > +++ b/drivers/gpu/drm/i915/display/intel_hdcp_gsc_message.c > @@ -0,0 +1,592 @@ > +// SPDX-License-Identifier: MIT > +/* > + * Copyright 2023, Intel Corporation. > + */ > + > +#include <drm/i915_hdcp_interface.h> > +#include <linux/err.h> Move the linux include above the drm include. With this fixed, rest all look good to me: Reviewed-by: Uma Shankar <uma.shankar@intel.com> > +#include "i915_drv.h" > +#include "intel_hdcp_gsc_message.h" > + > +int > +intel_hdcp_gsc_initiate_session(struct device *dev, struct hdcp_port_data > *data, > + struct hdcp2_ake_init *ake_data) > +{ > + struct wired_cmd_initiate_hdcp2_session_in session_init_in = { { 0 } }; > + struct wired_cmd_initiate_hdcp2_session_out > + session_init_out = { { 0 } }; > + struct drm_i915_private *i915; > + ssize_t byte; > + > + if (!dev || !data || !ake_data) > + return -EINVAL; > + > + i915 = kdev_to_i915(dev); > + if (!i915) { > + dev_err(dev, "DRM not initialized, aborting HDCP.\n"); > + return -ENODEV; > + } > + > + session_init_in.header.api_version = HDCP_API_VERSION; > + session_init_in.header.command_id = > WIRED_INITIATE_HDCP2_SESSION; > + session_init_in.header.status = FW_HDCP_STATUS_SUCCESS; > + session_init_in.header.buffer_len = > + > WIRED_CMD_BUF_LEN_INITIATE_HDCP2_SESSION_IN; > + > + session_init_in.port.integrated_port_type = data->port_type; > + session_init_in.port.physical_port = (u8)data->hdcp_ddi; > + session_init_in.port.attached_transcoder = (u8)data->hdcp_transcoder; > + session_init_in.protocol = data->protocol; > + > + byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&session_init_in, > + sizeof(session_init_in), > + (u8 *)&session_init_out, > + sizeof(session_init_out)); > + if (byte < 0) { > + drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. > %zd\n", byte); > + return byte; > + } > + > + if (session_init_out.header.status != FW_HDCP_STATUS_SUCCESS) { > + drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. Status: > 0x%X\n", > + WIRED_INITIATE_HDCP2_SESSION, > + session_init_out.header.status); > + return -EIO; > + } > + > + ake_data->msg_id = HDCP_2_2_AKE_INIT; > + ake_data->tx_caps = session_init_out.tx_caps; > + memcpy(ake_data->r_tx, session_init_out.r_tx, HDCP_2_2_RTX_LEN); > + > + return 0; > +} > + > +int > +intel_hdcp_gsc_verify_receiver_cert_prepare_km(struct device *dev, > + struct hdcp_port_data *data, > + struct hdcp2_ake_send_cert > *rx_cert, > + bool *km_stored, > + struct hdcp2_ake_no_stored_km > + *ek_pub_km, > + size_t *msg_sz) > +{ > + struct wired_cmd_verify_receiver_cert_in verify_rxcert_in = { { 0 } }; > + struct wired_cmd_verify_receiver_cert_out verify_rxcert_out = { { 0 } }; > + struct drm_i915_private *i915; > + ssize_t byte; > + > + if (!dev || !data || !rx_cert || !km_stored || !ek_pub_km || !msg_sz) > + return -EINVAL; > + > + i915 = kdev_to_i915(dev); > + if (!i915) { > + dev_err(dev, "DRM not initialized, aborting HDCP.\n"); > + return -ENODEV; > + } > + > + verify_rxcert_in.header.api_version = HDCP_API_VERSION; > + verify_rxcert_in.header.command_id = WIRED_VERIFY_RECEIVER_CERT; > + verify_rxcert_in.header.status = FW_HDCP_STATUS_SUCCESS; > + verify_rxcert_in.header.buffer_len = > + > WIRED_CMD_BUF_LEN_VERIFY_RECEIVER_CERT_IN; > + > + verify_rxcert_in.port.integrated_port_type = data->port_type; > + verify_rxcert_in.port.physical_port = (u8)data->hdcp_ddi; > + verify_rxcert_in.port.attached_transcoder = (u8)data->hdcp_transcoder; > + > + verify_rxcert_in.cert_rx = rx_cert->cert_rx; > + memcpy(verify_rxcert_in.r_rx, &rx_cert->r_rx, HDCP_2_2_RRX_LEN); > + memcpy(verify_rxcert_in.rx_caps, rx_cert->rx_caps, > +HDCP_2_2_RXCAPS_LEN); > + > + byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&verify_rxcert_in, > + sizeof(verify_rxcert_in), > + (u8 *)&verify_rxcert_out, > + sizeof(verify_rxcert_out)); > + if (byte < 0) { > + drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed: > %zd\n", byte); > + return byte; > + } > + > + if (verify_rxcert_out.header.status != FW_HDCP_STATUS_SUCCESS) { > + drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. Status: > 0x%X\n", > + WIRED_VERIFY_RECEIVER_CERT, > + verify_rxcert_out.header.status); > + return -EIO; > + } > + > + *km_stored = !!verify_rxcert_out.km_stored; > + if (verify_rxcert_out.km_stored) { > + ek_pub_km->msg_id = HDCP_2_2_AKE_STORED_KM; > + *msg_sz = sizeof(struct hdcp2_ake_stored_km); > + } else { > + ek_pub_km->msg_id = HDCP_2_2_AKE_NO_STORED_KM; > + *msg_sz = sizeof(struct hdcp2_ake_no_stored_km); > + } > + > + memcpy(ek_pub_km->e_kpub_km, &verify_rxcert_out.ekm_buff, > + sizeof(verify_rxcert_out.ekm_buff)); > + > + return 0; > +} > + > +int > +intel_hdcp_gsc_verify_hprime(struct device *dev, struct hdcp_port_data *data, > + struct hdcp2_ake_send_hprime *rx_hprime) { > + struct wired_cmd_ake_send_hprime_in send_hprime_in = { { 0 } }; > + struct wired_cmd_ake_send_hprime_out send_hprime_out = { { 0 } }; > + struct drm_i915_private *i915; > + ssize_t byte; > + > + if (!dev || !data || !rx_hprime) > + return -EINVAL; > + > + i915 = kdev_to_i915(dev); > + if (!i915) { > + dev_err(dev, "DRM not initialized, aborting HDCP.\n"); > + return -ENODEV; > + } > + > + send_hprime_in.header.api_version = HDCP_API_VERSION; > + send_hprime_in.header.command_id = WIRED_AKE_SEND_HPRIME; > + send_hprime_in.header.status = FW_HDCP_STATUS_SUCCESS; > + send_hprime_in.header.buffer_len = > +WIRED_CMD_BUF_LEN_AKE_SEND_HPRIME_IN; > + > + send_hprime_in.port.integrated_port_type = data->port_type; > + send_hprime_in.port.physical_port = (u8)data->hdcp_ddi; > + send_hprime_in.port.attached_transcoder = (u8)data->hdcp_transcoder; > + > + memcpy(send_hprime_in.h_prime, rx_hprime->h_prime, > + HDCP_2_2_H_PRIME_LEN); > + > + byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&send_hprime_in, > + sizeof(send_hprime_in), > + (u8 *)&send_hprime_out, > + sizeof(send_hprime_out)); > + if (byte < 0) { > + drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. > %zd\n", byte); > + return byte; > + } > + > + if (send_hprime_out.header.status != FW_HDCP_STATUS_SUCCESS) { > + drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. Status: > 0x%X\n", > + WIRED_AKE_SEND_HPRIME, > send_hprime_out.header.status); > + return -EIO; > + } > + > + return 0; > +} > + > +int > +intel_hdcp_gsc_store_pairing_info(struct device *dev, struct hdcp_port_data > *data, > + struct hdcp2_ake_send_pairing_info > *pairing_info) { > + struct wired_cmd_ake_send_pairing_info_in pairing_info_in = { { 0 } }; > + struct wired_cmd_ake_send_pairing_info_out pairing_info_out = { { 0 } }; > + struct drm_i915_private *i915; > + ssize_t byte; > + > + if (!dev || !data || !pairing_info) > + return -EINVAL; > + > + i915 = kdev_to_i915(dev); > + if (!i915) { > + dev_err(dev, "DRM not initialized, aborting HDCP.\n"); > + return -ENODEV; > + } > + > + pairing_info_in.header.api_version = HDCP_API_VERSION; > + pairing_info_in.header.command_id = > WIRED_AKE_SEND_PAIRING_INFO; > + pairing_info_in.header.status = FW_HDCP_STATUS_SUCCESS; > + pairing_info_in.header.buffer_len = > + > WIRED_CMD_BUF_LEN_SEND_PAIRING_INFO_IN; > + > + pairing_info_in.port.integrated_port_type = data->port_type; > + pairing_info_in.port.physical_port = (u8)data->hdcp_ddi; > + pairing_info_in.port.attached_transcoder = (u8)data->hdcp_transcoder; > + > + memcpy(pairing_info_in.e_kh_km, pairing_info->e_kh_km, > + HDCP_2_2_E_KH_KM_LEN); > + > + byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&pairing_info_in, > + sizeof(pairing_info_in), > + (u8 *)&pairing_info_out, > + sizeof(pairing_info_out)); > + if (byte < 0) { > + drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. > %zd\n", byte); > + return byte; > + } > + > + if (pairing_info_out.header.status != FW_HDCP_STATUS_SUCCESS) { > + drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. Status: > 0x%X\n", > + WIRED_AKE_SEND_PAIRING_INFO, > + pairing_info_out.header.status); > + return -EIO; > + } > + > + return 0; > +} > + > +int > +intel_hdcp_gsc_initiate_locality_check(struct device *dev, > + struct hdcp_port_data *data, > + struct hdcp2_lc_init *lc_init_data) { > + struct wired_cmd_init_locality_check_in lc_init_in = { { 0 } }; > + struct wired_cmd_init_locality_check_out lc_init_out = { { 0 } }; > + struct drm_i915_private *i915; > + ssize_t byte; > + > + if (!dev || !data || !lc_init_data) > + return -EINVAL; > + > + i915 = kdev_to_i915(dev); > + if (!i915) { > + dev_err(dev, "DRM not initialized, aborting HDCP.\n"); > + return -ENODEV; > + } > + > + lc_init_in.header.api_version = HDCP_API_VERSION; > + lc_init_in.header.command_id = WIRED_INIT_LOCALITY_CHECK; > + lc_init_in.header.status = FW_HDCP_STATUS_SUCCESS; > + lc_init_in.header.buffer_len = > +WIRED_CMD_BUF_LEN_INIT_LOCALITY_CHECK_IN; > + > + lc_init_in.port.integrated_port_type = data->port_type; > + lc_init_in.port.physical_port = (u8)data->hdcp_ddi; > + lc_init_in.port.attached_transcoder = (u8)data->hdcp_transcoder; > + > + byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&lc_init_in, > sizeof(lc_init_in), > + (u8 *)&lc_init_out, sizeof(lc_init_out)); > + if (byte < 0) { > + drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. > %zd\n", byte); > + return byte; > + } > + > + if (lc_init_out.header.status != FW_HDCP_STATUS_SUCCESS) { > + drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. status: > 0x%X\n", > + WIRED_INIT_LOCALITY_CHECK, > lc_init_out.header.status); > + return -EIO; > + } > + > + lc_init_data->msg_id = HDCP_2_2_LC_INIT; > + memcpy(lc_init_data->r_n, lc_init_out.r_n, HDCP_2_2_RN_LEN); > + > + return 0; > +} > + > +int > +intel_hdcp_gsc_verify_lprime(struct device *dev, struct hdcp_port_data *data, > + struct hdcp2_lc_send_lprime *rx_lprime) { > + struct wired_cmd_validate_locality_in verify_lprime_in = { { 0 } }; > + struct wired_cmd_validate_locality_out verify_lprime_out = { { 0 } }; > + struct drm_i915_private *i915; > + ssize_t byte; > + > + if (!dev || !data || !rx_lprime) > + return -EINVAL; > + > + i915 = kdev_to_i915(dev); > + if (!i915) { > + dev_err(dev, "DRM not initialized, aborting HDCP.\n"); > + return -ENODEV; > + } > + > + verify_lprime_in.header.api_version = HDCP_API_VERSION; > + verify_lprime_in.header.command_id = WIRED_VALIDATE_LOCALITY; > + verify_lprime_in.header.status = FW_HDCP_STATUS_SUCCESS; > + verify_lprime_in.header.buffer_len = > + > WIRED_CMD_BUF_LEN_VALIDATE_LOCALITY_IN; > + > + verify_lprime_in.port.integrated_port_type = data->port_type; > + verify_lprime_in.port.physical_port = (u8)data->hdcp_ddi; > + verify_lprime_in.port.attached_transcoder = (u8)data->hdcp_transcoder; > + > + memcpy(verify_lprime_in.l_prime, rx_lprime->l_prime, > + HDCP_2_2_L_PRIME_LEN); > + > + byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&verify_lprime_in, > + sizeof(verify_lprime_in), > + (u8 *)&verify_lprime_out, > + sizeof(verify_lprime_out)); > + if (byte < 0) { > + drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. > %zd\n", byte); > + return byte; > + } > + > + if (verify_lprime_out.header.status != FW_HDCP_STATUS_SUCCESS) { > + drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: > 0x%X\n", > + WIRED_VALIDATE_LOCALITY, > + verify_lprime_out.header.status); > + return -EIO; > + } > + > + return 0; > +} > + > +int intel_hdcp_gsc_get_session_key(struct device *dev, > + struct hdcp_port_data *data, > + struct hdcp2_ske_send_eks *ske_data) { > + struct wired_cmd_get_session_key_in get_skey_in = { { 0 } }; > + struct wired_cmd_get_session_key_out get_skey_out = { { 0 } }; > + struct drm_i915_private *i915; > + ssize_t byte; > + > + if (!dev || !data || !ske_data) > + return -EINVAL; > + > + i915 = kdev_to_i915(dev); > + if (!i915) { > + dev_err(dev, "DRM not initialized, aborting HDCP.\n"); > + return -ENODEV; > + } > + > + get_skey_in.header.api_version = HDCP_API_VERSION; > + get_skey_in.header.command_id = WIRED_GET_SESSION_KEY; > + get_skey_in.header.status = FW_HDCP_STATUS_SUCCESS; > + get_skey_in.header.buffer_len = > WIRED_CMD_BUF_LEN_GET_SESSION_KEY_IN; > + > + get_skey_in.port.integrated_port_type = data->port_type; > + get_skey_in.port.physical_port = (u8)data->hdcp_ddi; > + get_skey_in.port.attached_transcoder = (u8)data->hdcp_transcoder; > + > + byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&get_skey_in, > sizeof(get_skey_in), > + (u8 *)&get_skey_out, sizeof(get_skey_out)); > + if (byte < 0) { > + drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. > %zd\n", byte); > + return byte; > + } > + > + if (get_skey_out.header.status != FW_HDCP_STATUS_SUCCESS) { > + drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: > 0x%X\n", > + WIRED_GET_SESSION_KEY, > get_skey_out.header.status); > + return -EIO; > + } > + > + ske_data->msg_id = HDCP_2_2_SKE_SEND_EKS; > + memcpy(ske_data->e_dkey_ks, get_skey_out.e_dkey_ks, > + HDCP_2_2_E_DKEY_KS_LEN); > + memcpy(ske_data->riv, get_skey_out.r_iv, HDCP_2_2_RIV_LEN); > + > + return 0; > +} > + > +int > +intel_hdcp_gsc_repeater_check_flow_prepare_ack(struct device *dev, > + struct hdcp_port_data *data, > + struct > hdcp2_rep_send_receiverid_list > + *rep_topology, > + struct hdcp2_rep_send_ack > + *rep_send_ack) > +{ > + struct wired_cmd_verify_repeater_in verify_repeater_in = { { 0 } }; > + struct wired_cmd_verify_repeater_out verify_repeater_out = { { 0 } }; > + struct drm_i915_private *i915; > + ssize_t byte; > + > + if (!dev || !rep_topology || !rep_send_ack || !data) > + return -EINVAL; > + > + i915 = kdev_to_i915(dev); > + if (!i915) { > + dev_err(dev, "DRM not initialized, aborting HDCP.\n"); > + return -ENODEV; > + } > + > + verify_repeater_in.header.api_version = HDCP_API_VERSION; > + verify_repeater_in.header.command_id = WIRED_VERIFY_REPEATER; > + verify_repeater_in.header.status = FW_HDCP_STATUS_SUCCESS; > + verify_repeater_in.header.buffer_len = > + > WIRED_CMD_BUF_LEN_VERIFY_REPEATER_IN; > + > + verify_repeater_in.port.integrated_port_type = data->port_type; > + verify_repeater_in.port.physical_port = (u8)data->hdcp_ddi; > + verify_repeater_in.port.attached_transcoder = > +(u8)data->hdcp_transcoder; > + > + memcpy(verify_repeater_in.rx_info, rep_topology->rx_info, > + HDCP_2_2_RXINFO_LEN); > + memcpy(verify_repeater_in.seq_num_v, rep_topology->seq_num_v, > + HDCP_2_2_SEQ_NUM_LEN); > + memcpy(verify_repeater_in.v_prime, rep_topology->v_prime, > + HDCP_2_2_V_PRIME_HALF_LEN); > + memcpy(verify_repeater_in.receiver_ids, rep_topology->receiver_ids, > + HDCP_2_2_RECEIVER_IDS_MAX_LEN); > + > + byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&verify_repeater_in, > + sizeof(verify_repeater_in), > + (u8 *)&verify_repeater_out, > + sizeof(verify_repeater_out)); > + if (byte < 0) { > + drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. > %zd\n", byte); > + return byte; > + } > + > + if (verify_repeater_out.header.status != FW_HDCP_STATUS_SUCCESS) { > + drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: > 0x%X\n", > + WIRED_VERIFY_REPEATER, > + verify_repeater_out.header.status); > + return -EIO; > + } > + > + memcpy(rep_send_ack->v, verify_repeater_out.v, > + HDCP_2_2_V_PRIME_HALF_LEN); > + rep_send_ack->msg_id = HDCP_2_2_REP_SEND_ACK; > + > + return 0; > +} > + > +int intel_hdcp_gsc_verify_mprime(struct device *dev, > + struct hdcp_port_data *data, > + struct hdcp2_rep_stream_ready > *stream_ready) { > + struct wired_cmd_repeater_auth_stream_req_in *verify_mprime_in; > + struct wired_cmd_repeater_auth_stream_req_out > + verify_mprime_out = { { 0 } }; > + struct drm_i915_private *i915; > + ssize_t byte; > + size_t cmd_size; > + > + if (!dev || !stream_ready || !data) > + return -EINVAL; > + > + i915 = kdev_to_i915(dev); > + if (!i915) { > + dev_err(dev, "DRM not initialized, aborting HDCP.\n"); > + return -ENODEV; > + } > + > + cmd_size = struct_size(verify_mprime_in, streams, data->k); > + if (cmd_size == SIZE_MAX) > + return -EINVAL; > + > + verify_mprime_in = kzalloc(cmd_size, GFP_KERNEL); > + if (!verify_mprime_in) > + return -ENOMEM; > + > + verify_mprime_in->header.api_version = HDCP_API_VERSION; > + verify_mprime_in->header.command_id = > WIRED_REPEATER_AUTH_STREAM_REQ; > + verify_mprime_in->header.status = FW_HDCP_STATUS_SUCCESS; > + verify_mprime_in->header.buffer_len = cmd_size - > +sizeof(verify_mprime_in->header); > + > + verify_mprime_in->port.integrated_port_type = data->port_type; > + verify_mprime_in->port.physical_port = (u8)data->hdcp_ddi; > + verify_mprime_in->port.attached_transcoder = > +(u8)data->hdcp_transcoder; > + > + memcpy(verify_mprime_in->m_prime, stream_ready->m_prime, > HDCP_2_2_MPRIME_LEN); > + drm_hdcp_cpu_to_be24(verify_mprime_in->seq_num_m, data- > >seq_num_m); > + > + memcpy(verify_mprime_in->streams, data->streams, > + array_size(data->k, sizeof(*data->streams))); > + > + verify_mprime_in->k = cpu_to_be16(data->k); > + > + byte = intel_hdcp_gsc_msg_send(i915, (u8 *)verify_mprime_in, > cmd_size, > + (u8 *)&verify_mprime_out, > + sizeof(verify_mprime_out)); > + kfree(verify_mprime_in); > + if (byte < 0) { > + drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. > %zd\n", byte); > + return byte; > + } > + > + if (verify_mprime_out.header.status != FW_HDCP_STATUS_SUCCESS) { > + drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: > 0x%X\n", > + WIRED_REPEATER_AUTH_STREAM_REQ, > + verify_mprime_out.header.status); > + return -EIO; > + } > + > + return 0; > +} > + > +int intel_hdcp_gsc_enable_authentication(struct device *dev, > + struct hdcp_port_data *data) > +{ > + struct wired_cmd_enable_auth_in enable_auth_in = { { 0 } }; > + struct wired_cmd_enable_auth_out enable_auth_out = { { 0 } }; > + struct drm_i915_private *i915; > + ssize_t byte; > + > + if (!dev || !data) > + return -EINVAL; > + > + i915 = kdev_to_i915(dev); > + if (!i915) { > + dev_err(dev, "DRM not initialized, aborting HDCP.\n"); > + return -ENODEV; > + } > + > + enable_auth_in.header.api_version = HDCP_API_VERSION; > + enable_auth_in.header.command_id = WIRED_ENABLE_AUTH; > + enable_auth_in.header.status = FW_HDCP_STATUS_SUCCESS; > + enable_auth_in.header.buffer_len = > WIRED_CMD_BUF_LEN_ENABLE_AUTH_IN; > + > + enable_auth_in.port.integrated_port_type = data->port_type; > + enable_auth_in.port.physical_port = (u8)data->hdcp_ddi; > + enable_auth_in.port.attached_transcoder = (u8)data->hdcp_transcoder; > + enable_auth_in.stream_type = data->streams[0].stream_type; > + > + byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&enable_auth_in, > + sizeof(enable_auth_in), > + (u8 *)&enable_auth_out, > + sizeof(enable_auth_out)); > + if (byte < 0) { > + drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. > %zd\n", byte); > + return byte; > + } > + > + if (enable_auth_out.header.status != FW_HDCP_STATUS_SUCCESS) { > + drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: > 0x%X\n", > + WIRED_ENABLE_AUTH, > enable_auth_out.header.status); > + return -EIO; > + } > + > + return 0; > +} > + > +int > +intel_hdcp_gsc_close_session(struct device *dev, struct hdcp_port_data > +*data) { > + struct wired_cmd_close_session_in session_close_in = { { 0 } }; > + struct wired_cmd_close_session_out session_close_out = { { 0 } }; > + struct drm_i915_private *i915; > + ssize_t byte; > + > + if (!dev || !data) > + return -EINVAL; > + > + i915 = kdev_to_i915(dev); > + if (!i915) { > + dev_err(dev, "DRM not initialized, aborting HDCP.\n"); > + return -ENODEV; > + } > + > + session_close_in.header.api_version = HDCP_API_VERSION; > + session_close_in.header.command_id = WIRED_CLOSE_SESSION; > + session_close_in.header.status = FW_HDCP_STATUS_SUCCESS; > + session_close_in.header.buffer_len = > + WIRED_CMD_BUF_LEN_CLOSE_SESSION_IN; > + > + session_close_in.port.integrated_port_type = data->port_type; > + session_close_in.port.physical_port = (u8)data->hdcp_ddi; > + session_close_in.port.attached_transcoder = (u8)data->hdcp_transcoder; > + > + byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&session_close_in, > + sizeof(session_close_in), > + (u8 *)&session_close_out, > + sizeof(session_close_out)); > + if (byte < 0) { > + drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. > %zd\n", byte); > + return byte; > + } > + > + if (session_close_out.header.status != FW_HDCP_STATUS_SUCCESS) { > + drm_dbg_kms(&i915->drm, "Session Close Failed. status: > 0x%X\n", > + session_close_out.header.status); > + return -EIO; > + } > + > + return 0; > +} > diff --git a/drivers/gpu/drm/i915/display/intel_hdcp_gsc_message.h > b/drivers/gpu/drm/i915/display/intel_hdcp_gsc_message.h > new file mode 100644 > index 000000000000..ce199d6f6232 > --- /dev/null > +++ b/drivers/gpu/drm/i915/display/intel_hdcp_gsc_message.h > @@ -0,0 +1,72 @@ > +/* SPDX-License-Identifier: MIT */ > +/* > + * Copyright © 2023 Intel Corporation > + */ > + > +#ifndef __INTEL_HDCP_GSC_MESSAGE_H__ > +#define __INTEL_HDCP_GSC_MESSAGE_H__ > + > +#include <linux/types.h> > + > +struct device; > +struct drm_i915_private; > +struct hdcp_port_data; > +struct hdcp2_ake_init; > +struct hdcp2_ake_send_cert; > +struct hdcp2_ake_no_stored_km; > +struct hdcp2_ake_send_hprime; > +struct hdcp2_ake_send_pairing_info; > +struct hdcp2_lc_init; > +struct hdcp2_lc_send_lprime; > +struct hdcp2_ske_send_eks; > +struct hdcp2_rep_send_receiverid_list; > +struct hdcp2_rep_send_ack; > +struct hdcp2_rep_stream_ready; > + > +ssize_t intel_hdcp_gsc_msg_send(struct drm_i915_private *i915, u8 *msg_in, > + size_t msg_in_len, u8 *msg_out, > + size_t msg_out_len); > +bool intel_hdcp_gsc_check_status(struct drm_i915_private *i915); int > +intel_hdcp_gsc_initiate_session(struct device *dev, struct hdcp_port_data > *data, > + struct hdcp2_ake_init *ake_data); > +int > +intel_hdcp_gsc_verify_receiver_cert_prepare_km(struct device *dev, > + struct hdcp_port_data *data, > + struct hdcp2_ake_send_cert > *rx_cert, > + bool *km_stored, > + struct hdcp2_ake_no_stored_km > + *ek_pub_km, > + size_t *msg_sz); > +int > +intel_hdcp_gsc_verify_hprime(struct device *dev, struct hdcp_port_data *data, > + struct hdcp2_ake_send_hprime *rx_hprime); int > +intel_hdcp_gsc_store_pairing_info(struct device *dev, struct hdcp_port_data > *data, > + struct hdcp2_ake_send_pairing_info > *pairing_info); int > +intel_hdcp_gsc_initiate_locality_check(struct device *dev, > + struct hdcp_port_data *data, > + struct hdcp2_lc_init *lc_init_data); int > +intel_hdcp_gsc_verify_lprime(struct device *dev, struct hdcp_port_data *data, > + struct hdcp2_lc_send_lprime *rx_lprime); int > +intel_hdcp_gsc_get_session_key(struct device *dev, > + struct hdcp_port_data *data, > + struct hdcp2_ske_send_eks *ske_data); int > +intel_hdcp_gsc_repeater_check_flow_prepare_ack(struct device *dev, > + struct hdcp_port_data *data, > + struct > hdcp2_rep_send_receiverid_list > + *rep_topology, > + struct hdcp2_rep_send_ack > + *rep_send_ack); > +int intel_hdcp_gsc_verify_mprime(struct device *dev, > + struct hdcp_port_data *data, > + struct hdcp2_rep_stream_ready > *stream_ready); int > +intel_hdcp_gsc_enable_authentication(struct device *dev, > + struct hdcp_port_data *data); > +int > +intel_hdcp_gsc_close_session(struct device *dev, struct hdcp_port_data > +*data); > + > +#endif /* __INTEL_HDCP_GSC_MESSAGE_H__ */ > -- > 2.25.1
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index 1b2e02e9d92c..27b3da6e0e43 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -265,6 +265,7 @@ i915-y += \ display/intel_global_state.o \ display/intel_hdcp.o \ display/intel_hdcp_gsc.o \ + display/intel_hdcp_gsc_message.o \ display/intel_hotplug.o \ display/intel_hotplug_irq.o \ display/intel_hti.o \ diff --git a/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c b/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c index d355d610bc9f..18117b789b16 100644 --- a/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c +++ b/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c @@ -11,6 +11,7 @@ #include "i915_drv.h" #include "i915_utils.h" #include "intel_hdcp_gsc.h" +#include "intel_hdcp_gsc_message.h" bool intel_hdcp_gsc_cs_required(struct drm_i915_private *i915) { @@ -31,604 +32,6 @@ bool intel_hdcp_gsc_check_status(struct drm_i915_private *i915) return true; } -static int -gsc_hdcp_initiate_session(struct device *dev, struct hdcp_port_data *data, - struct hdcp2_ake_init *ake_data) -{ - struct wired_cmd_initiate_hdcp2_session_in session_init_in = { { 0 } }; - struct wired_cmd_initiate_hdcp2_session_out - session_init_out = { { 0 } }; - struct drm_i915_private *i915; - ssize_t byte; - - if (!dev || !data || !ake_data) - return -EINVAL; - - i915 = kdev_to_i915(dev); - if (!i915) { - dev_err(dev, "DRM not initialized, aborting HDCP.\n"); - return -ENODEV; - } - - session_init_in.header.api_version = HDCP_API_VERSION; - session_init_in.header.command_id = WIRED_INITIATE_HDCP2_SESSION; - session_init_in.header.status = FW_HDCP_STATUS_SUCCESS; - session_init_in.header.buffer_len = - WIRED_CMD_BUF_LEN_INITIATE_HDCP2_SESSION_IN; - - session_init_in.port.integrated_port_type = data->port_type; - session_init_in.port.physical_port = (u8)data->hdcp_ddi; - session_init_in.port.attached_transcoder = (u8)data->hdcp_transcoder; - session_init_in.protocol = data->protocol; - - byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&session_init_in, - sizeof(session_init_in), - (u8 *)&session_init_out, - sizeof(session_init_out)); - if (byte < 0) { - drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte); - return byte; - } - - if (session_init_out.header.status != FW_HDCP_STATUS_SUCCESS) { - drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. Status: 0x%X\n", - WIRED_INITIATE_HDCP2_SESSION, - session_init_out.header.status); - return -EIO; - } - - ake_data->msg_id = HDCP_2_2_AKE_INIT; - ake_data->tx_caps = session_init_out.tx_caps; - memcpy(ake_data->r_tx, session_init_out.r_tx, HDCP_2_2_RTX_LEN); - - return 0; -} - -static int -gsc_hdcp_verify_receiver_cert_prepare_km(struct device *dev, - struct hdcp_port_data *data, - struct hdcp2_ake_send_cert *rx_cert, - bool *km_stored, - struct hdcp2_ake_no_stored_km - *ek_pub_km, - size_t *msg_sz) -{ - struct wired_cmd_verify_receiver_cert_in verify_rxcert_in = { { 0 } }; - struct wired_cmd_verify_receiver_cert_out verify_rxcert_out = { { 0 } }; - struct drm_i915_private *i915; - ssize_t byte; - - if (!dev || !data || !rx_cert || !km_stored || !ek_pub_km || !msg_sz) - return -EINVAL; - - i915 = kdev_to_i915(dev); - if (!i915) { - dev_err(dev, "DRM not initialized, aborting HDCP.\n"); - return -ENODEV; - } - - verify_rxcert_in.header.api_version = HDCP_API_VERSION; - verify_rxcert_in.header.command_id = WIRED_VERIFY_RECEIVER_CERT; - verify_rxcert_in.header.status = FW_HDCP_STATUS_SUCCESS; - verify_rxcert_in.header.buffer_len = - WIRED_CMD_BUF_LEN_VERIFY_RECEIVER_CERT_IN; - - verify_rxcert_in.port.integrated_port_type = data->port_type; - verify_rxcert_in.port.physical_port = (u8)data->hdcp_ddi; - verify_rxcert_in.port.attached_transcoder = (u8)data->hdcp_transcoder; - - verify_rxcert_in.cert_rx = rx_cert->cert_rx; - memcpy(verify_rxcert_in.r_rx, &rx_cert->r_rx, HDCP_2_2_RRX_LEN); - memcpy(verify_rxcert_in.rx_caps, rx_cert->rx_caps, HDCP_2_2_RXCAPS_LEN); - - byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&verify_rxcert_in, - sizeof(verify_rxcert_in), - (u8 *)&verify_rxcert_out, - sizeof(verify_rxcert_out)); - if (byte < 0) { - drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed: %zd\n", byte); - return byte; - } - - if (verify_rxcert_out.header.status != FW_HDCP_STATUS_SUCCESS) { - drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. Status: 0x%X\n", - WIRED_VERIFY_RECEIVER_CERT, - verify_rxcert_out.header.status); - return -EIO; - } - - *km_stored = !!verify_rxcert_out.km_stored; - if (verify_rxcert_out.km_stored) { - ek_pub_km->msg_id = HDCP_2_2_AKE_STORED_KM; - *msg_sz = sizeof(struct hdcp2_ake_stored_km); - } else { - ek_pub_km->msg_id = HDCP_2_2_AKE_NO_STORED_KM; - *msg_sz = sizeof(struct hdcp2_ake_no_stored_km); - } - - memcpy(ek_pub_km->e_kpub_km, &verify_rxcert_out.ekm_buff, - sizeof(verify_rxcert_out.ekm_buff)); - - return 0; -} - -static int -gsc_hdcp_verify_hprime(struct device *dev, struct hdcp_port_data *data, - struct hdcp2_ake_send_hprime *rx_hprime) -{ - struct wired_cmd_ake_send_hprime_in send_hprime_in = { { 0 } }; - struct wired_cmd_ake_send_hprime_out send_hprime_out = { { 0 } }; - struct drm_i915_private *i915; - ssize_t byte; - - if (!dev || !data || !rx_hprime) - return -EINVAL; - - i915 = kdev_to_i915(dev); - if (!i915) { - dev_err(dev, "DRM not initialized, aborting HDCP.\n"); - return -ENODEV; - } - - send_hprime_in.header.api_version = HDCP_API_VERSION; - send_hprime_in.header.command_id = WIRED_AKE_SEND_HPRIME; - send_hprime_in.header.status = FW_HDCP_STATUS_SUCCESS; - send_hprime_in.header.buffer_len = WIRED_CMD_BUF_LEN_AKE_SEND_HPRIME_IN; - - send_hprime_in.port.integrated_port_type = data->port_type; - send_hprime_in.port.physical_port = (u8)data->hdcp_ddi; - send_hprime_in.port.attached_transcoder = (u8)data->hdcp_transcoder; - - memcpy(send_hprime_in.h_prime, rx_hprime->h_prime, - HDCP_2_2_H_PRIME_LEN); - - byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&send_hprime_in, - sizeof(send_hprime_in), - (u8 *)&send_hprime_out, - sizeof(send_hprime_out)); - if (byte < 0) { - drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte); - return byte; - } - - if (send_hprime_out.header.status != FW_HDCP_STATUS_SUCCESS) { - drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. Status: 0x%X\n", - WIRED_AKE_SEND_HPRIME, send_hprime_out.header.status); - return -EIO; - } - - return 0; -} - -static int -gsc_hdcp_store_pairing_info(struct device *dev, struct hdcp_port_data *data, - struct hdcp2_ake_send_pairing_info *pairing_info) -{ - struct wired_cmd_ake_send_pairing_info_in pairing_info_in = { { 0 } }; - struct wired_cmd_ake_send_pairing_info_out pairing_info_out = { { 0 } }; - struct drm_i915_private *i915; - ssize_t byte; - - if (!dev || !data || !pairing_info) - return -EINVAL; - - i915 = kdev_to_i915(dev); - if (!i915) { - dev_err(dev, "DRM not initialized, aborting HDCP.\n"); - return -ENODEV; - } - - pairing_info_in.header.api_version = HDCP_API_VERSION; - pairing_info_in.header.command_id = WIRED_AKE_SEND_PAIRING_INFO; - pairing_info_in.header.status = FW_HDCP_STATUS_SUCCESS; - pairing_info_in.header.buffer_len = - WIRED_CMD_BUF_LEN_SEND_PAIRING_INFO_IN; - - pairing_info_in.port.integrated_port_type = data->port_type; - pairing_info_in.port.physical_port = (u8)data->hdcp_ddi; - pairing_info_in.port.attached_transcoder = (u8)data->hdcp_transcoder; - - memcpy(pairing_info_in.e_kh_km, pairing_info->e_kh_km, - HDCP_2_2_E_KH_KM_LEN); - - byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&pairing_info_in, - sizeof(pairing_info_in), - (u8 *)&pairing_info_out, - sizeof(pairing_info_out)); - if (byte < 0) { - drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte); - return byte; - } - - if (pairing_info_out.header.status != FW_HDCP_STATUS_SUCCESS) { - drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. Status: 0x%X\n", - WIRED_AKE_SEND_PAIRING_INFO, - pairing_info_out.header.status); - return -EIO; - } - - return 0; -} - -static int -gsc_hdcp_initiate_locality_check(struct device *dev, - struct hdcp_port_data *data, - struct hdcp2_lc_init *lc_init_data) -{ - struct wired_cmd_init_locality_check_in lc_init_in = { { 0 } }; - struct wired_cmd_init_locality_check_out lc_init_out = { { 0 } }; - struct drm_i915_private *i915; - ssize_t byte; - - if (!dev || !data || !lc_init_data) - return -EINVAL; - - i915 = kdev_to_i915(dev); - if (!i915) { - dev_err(dev, "DRM not initialized, aborting HDCP.\n"); - return -ENODEV; - } - - lc_init_in.header.api_version = HDCP_API_VERSION; - lc_init_in.header.command_id = WIRED_INIT_LOCALITY_CHECK; - lc_init_in.header.status = FW_HDCP_STATUS_SUCCESS; - lc_init_in.header.buffer_len = WIRED_CMD_BUF_LEN_INIT_LOCALITY_CHECK_IN; - - lc_init_in.port.integrated_port_type = data->port_type; - lc_init_in.port.physical_port = (u8)data->hdcp_ddi; - lc_init_in.port.attached_transcoder = (u8)data->hdcp_transcoder; - - byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&lc_init_in, sizeof(lc_init_in), - (u8 *)&lc_init_out, sizeof(lc_init_out)); - if (byte < 0) { - drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte); - return byte; - } - - if (lc_init_out.header.status != FW_HDCP_STATUS_SUCCESS) { - drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. status: 0x%X\n", - WIRED_INIT_LOCALITY_CHECK, lc_init_out.header.status); - return -EIO; - } - - lc_init_data->msg_id = HDCP_2_2_LC_INIT; - memcpy(lc_init_data->r_n, lc_init_out.r_n, HDCP_2_2_RN_LEN); - - return 0; -} - -static int -gsc_hdcp_verify_lprime(struct device *dev, struct hdcp_port_data *data, - struct hdcp2_lc_send_lprime *rx_lprime) -{ - struct wired_cmd_validate_locality_in verify_lprime_in = { { 0 } }; - struct wired_cmd_validate_locality_out verify_lprime_out = { { 0 } }; - struct drm_i915_private *i915; - ssize_t byte; - - if (!dev || !data || !rx_lprime) - return -EINVAL; - - i915 = kdev_to_i915(dev); - if (!i915) { - dev_err(dev, "DRM not initialized, aborting HDCP.\n"); - return -ENODEV; - } - - verify_lprime_in.header.api_version = HDCP_API_VERSION; - verify_lprime_in.header.command_id = WIRED_VALIDATE_LOCALITY; - verify_lprime_in.header.status = FW_HDCP_STATUS_SUCCESS; - verify_lprime_in.header.buffer_len = - WIRED_CMD_BUF_LEN_VALIDATE_LOCALITY_IN; - - verify_lprime_in.port.integrated_port_type = data->port_type; - verify_lprime_in.port.physical_port = (u8)data->hdcp_ddi; - verify_lprime_in.port.attached_transcoder = (u8)data->hdcp_transcoder; - - memcpy(verify_lprime_in.l_prime, rx_lprime->l_prime, - HDCP_2_2_L_PRIME_LEN); - - byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&verify_lprime_in, - sizeof(verify_lprime_in), - (u8 *)&verify_lprime_out, - sizeof(verify_lprime_out)); - if (byte < 0) { - drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte); - return byte; - } - - if (verify_lprime_out.header.status != FW_HDCP_STATUS_SUCCESS) { - drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: 0x%X\n", - WIRED_VALIDATE_LOCALITY, - verify_lprime_out.header.status); - return -EIO; - } - - return 0; -} - -static int gsc_hdcp_get_session_key(struct device *dev, - struct hdcp_port_data *data, - struct hdcp2_ske_send_eks *ske_data) -{ - struct wired_cmd_get_session_key_in get_skey_in = { { 0 } }; - struct wired_cmd_get_session_key_out get_skey_out = { { 0 } }; - struct drm_i915_private *i915; - ssize_t byte; - - if (!dev || !data || !ske_data) - return -EINVAL; - - i915 = kdev_to_i915(dev); - if (!i915) { - dev_err(dev, "DRM not initialized, aborting HDCP.\n"); - return -ENODEV; - } - - get_skey_in.header.api_version = HDCP_API_VERSION; - get_skey_in.header.command_id = WIRED_GET_SESSION_KEY; - get_skey_in.header.status = FW_HDCP_STATUS_SUCCESS; - get_skey_in.header.buffer_len = WIRED_CMD_BUF_LEN_GET_SESSION_KEY_IN; - - get_skey_in.port.integrated_port_type = data->port_type; - get_skey_in.port.physical_port = (u8)data->hdcp_ddi; - get_skey_in.port.attached_transcoder = (u8)data->hdcp_transcoder; - - byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&get_skey_in, sizeof(get_skey_in), - (u8 *)&get_skey_out, sizeof(get_skey_out)); - if (byte < 0) { - drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte); - return byte; - } - - if (get_skey_out.header.status != FW_HDCP_STATUS_SUCCESS) { - drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: 0x%X\n", - WIRED_GET_SESSION_KEY, get_skey_out.header.status); - return -EIO; - } - - ske_data->msg_id = HDCP_2_2_SKE_SEND_EKS; - memcpy(ske_data->e_dkey_ks, get_skey_out.e_dkey_ks, - HDCP_2_2_E_DKEY_KS_LEN); - memcpy(ske_data->riv, get_skey_out.r_iv, HDCP_2_2_RIV_LEN); - - return 0; -} - -static int -gsc_hdcp_repeater_check_flow_prepare_ack(struct device *dev, - struct hdcp_port_data *data, - struct hdcp2_rep_send_receiverid_list - *rep_topology, - struct hdcp2_rep_send_ack - *rep_send_ack) -{ - struct wired_cmd_verify_repeater_in verify_repeater_in = { { 0 } }; - struct wired_cmd_verify_repeater_out verify_repeater_out = { { 0 } }; - struct drm_i915_private *i915; - ssize_t byte; - - if (!dev || !rep_topology || !rep_send_ack || !data) - return -EINVAL; - - i915 = kdev_to_i915(dev); - if (!i915) { - dev_err(dev, "DRM not initialized, aborting HDCP.\n"); - return -ENODEV; - } - - verify_repeater_in.header.api_version = HDCP_API_VERSION; - verify_repeater_in.header.command_id = WIRED_VERIFY_REPEATER; - verify_repeater_in.header.status = FW_HDCP_STATUS_SUCCESS; - verify_repeater_in.header.buffer_len = - WIRED_CMD_BUF_LEN_VERIFY_REPEATER_IN; - - verify_repeater_in.port.integrated_port_type = data->port_type; - verify_repeater_in.port.physical_port = (u8)data->hdcp_ddi; - verify_repeater_in.port.attached_transcoder = (u8)data->hdcp_transcoder; - - memcpy(verify_repeater_in.rx_info, rep_topology->rx_info, - HDCP_2_2_RXINFO_LEN); - memcpy(verify_repeater_in.seq_num_v, rep_topology->seq_num_v, - HDCP_2_2_SEQ_NUM_LEN); - memcpy(verify_repeater_in.v_prime, rep_topology->v_prime, - HDCP_2_2_V_PRIME_HALF_LEN); - memcpy(verify_repeater_in.receiver_ids, rep_topology->receiver_ids, - HDCP_2_2_RECEIVER_IDS_MAX_LEN); - - byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&verify_repeater_in, - sizeof(verify_repeater_in), - (u8 *)&verify_repeater_out, - sizeof(verify_repeater_out)); - if (byte < 0) { - drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte); - return byte; - } - - if (verify_repeater_out.header.status != FW_HDCP_STATUS_SUCCESS) { - drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: 0x%X\n", - WIRED_VERIFY_REPEATER, - verify_repeater_out.header.status); - return -EIO; - } - - memcpy(rep_send_ack->v, verify_repeater_out.v, - HDCP_2_2_V_PRIME_HALF_LEN); - rep_send_ack->msg_id = HDCP_2_2_REP_SEND_ACK; - - return 0; -} - -static int gsc_hdcp_verify_mprime(struct device *dev, - struct hdcp_port_data *data, - struct hdcp2_rep_stream_ready *stream_ready) -{ - struct wired_cmd_repeater_auth_stream_req_in *verify_mprime_in; - struct wired_cmd_repeater_auth_stream_req_out - verify_mprime_out = { { 0 } }; - struct drm_i915_private *i915; - ssize_t byte; - size_t cmd_size; - - if (!dev || !stream_ready || !data) - return -EINVAL; - - i915 = kdev_to_i915(dev); - if (!i915) { - dev_err(dev, "DRM not initialized, aborting HDCP.\n"); - return -ENODEV; - } - - cmd_size = struct_size(verify_mprime_in, streams, data->k); - if (cmd_size == SIZE_MAX) - return -EINVAL; - - verify_mprime_in = kzalloc(cmd_size, GFP_KERNEL); - if (!verify_mprime_in) - return -ENOMEM; - - verify_mprime_in->header.api_version = HDCP_API_VERSION; - verify_mprime_in->header.command_id = WIRED_REPEATER_AUTH_STREAM_REQ; - verify_mprime_in->header.status = FW_HDCP_STATUS_SUCCESS; - verify_mprime_in->header.buffer_len = cmd_size - sizeof(verify_mprime_in->header); - - verify_mprime_in->port.integrated_port_type = data->port_type; - verify_mprime_in->port.physical_port = (u8)data->hdcp_ddi; - verify_mprime_in->port.attached_transcoder = (u8)data->hdcp_transcoder; - - memcpy(verify_mprime_in->m_prime, stream_ready->m_prime, HDCP_2_2_MPRIME_LEN); - drm_hdcp_cpu_to_be24(verify_mprime_in->seq_num_m, data->seq_num_m); - - memcpy(verify_mprime_in->streams, data->streams, - array_size(data->k, sizeof(*data->streams))); - - verify_mprime_in->k = cpu_to_be16(data->k); - - byte = intel_hdcp_gsc_msg_send(i915, (u8 *)verify_mprime_in, cmd_size, - (u8 *)&verify_mprime_out, - sizeof(verify_mprime_out)); - kfree(verify_mprime_in); - if (byte < 0) { - drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte); - return byte; - } - - if (verify_mprime_out.header.status != FW_HDCP_STATUS_SUCCESS) { - drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: 0x%X\n", - WIRED_REPEATER_AUTH_STREAM_REQ, - verify_mprime_out.header.status); - return -EIO; - } - - return 0; -} - -static int gsc_hdcp_enable_authentication(struct device *dev, - struct hdcp_port_data *data) -{ - struct wired_cmd_enable_auth_in enable_auth_in = { { 0 } }; - struct wired_cmd_enable_auth_out enable_auth_out = { { 0 } }; - struct drm_i915_private *i915; - ssize_t byte; - - if (!dev || !data) - return -EINVAL; - - i915 = kdev_to_i915(dev); - if (!i915) { - dev_err(dev, "DRM not initialized, aborting HDCP.\n"); - return -ENODEV; - } - - enable_auth_in.header.api_version = HDCP_API_VERSION; - enable_auth_in.header.command_id = WIRED_ENABLE_AUTH; - enable_auth_in.header.status = FW_HDCP_STATUS_SUCCESS; - enable_auth_in.header.buffer_len = WIRED_CMD_BUF_LEN_ENABLE_AUTH_IN; - - enable_auth_in.port.integrated_port_type = data->port_type; - enable_auth_in.port.physical_port = (u8)data->hdcp_ddi; - enable_auth_in.port.attached_transcoder = (u8)data->hdcp_transcoder; - enable_auth_in.stream_type = data->streams[0].stream_type; - - byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&enable_auth_in, - sizeof(enable_auth_in), - (u8 *)&enable_auth_out, - sizeof(enable_auth_out)); - if (byte < 0) { - drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte); - return byte; - } - - if (enable_auth_out.header.status != FW_HDCP_STATUS_SUCCESS) { - drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: 0x%X\n", - WIRED_ENABLE_AUTH, enable_auth_out.header.status); - return -EIO; - } - - return 0; -} - -static int -gsc_hdcp_close_session(struct device *dev, struct hdcp_port_data *data) -{ - struct wired_cmd_close_session_in session_close_in = { { 0 } }; - struct wired_cmd_close_session_out session_close_out = { { 0 } }; - struct drm_i915_private *i915; - ssize_t byte; - - if (!dev || !data) - return -EINVAL; - - i915 = kdev_to_i915(dev); - if (!i915) { - dev_err(dev, "DRM not initialized, aborting HDCP.\n"); - return -ENODEV; - } - - session_close_in.header.api_version = HDCP_API_VERSION; - session_close_in.header.command_id = WIRED_CLOSE_SESSION; - session_close_in.header.status = FW_HDCP_STATUS_SUCCESS; - session_close_in.header.buffer_len = - WIRED_CMD_BUF_LEN_CLOSE_SESSION_IN; - - session_close_in.port.integrated_port_type = data->port_type; - session_close_in.port.physical_port = (u8)data->hdcp_ddi; - session_close_in.port.attached_transcoder = (u8)data->hdcp_transcoder; - - byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&session_close_in, - sizeof(session_close_in), - (u8 *)&session_close_out, - sizeof(session_close_out)); - if (byte < 0) { - drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte); - return byte; - } - - if (session_close_out.header.status != FW_HDCP_STATUS_SUCCESS) { - drm_dbg_kms(&i915->drm, "Session Close Failed. status: 0x%X\n", - session_close_out.header.status); - return -EIO; - } - - return 0; -} - -static const struct i915_hdcp_ops gsc_hdcp_ops = { - .initiate_hdcp2_session = gsc_hdcp_initiate_session, - .verify_receiver_cert_prepare_km = - gsc_hdcp_verify_receiver_cert_prepare_km, - .verify_hprime = gsc_hdcp_verify_hprime, - .store_pairing_info = gsc_hdcp_store_pairing_info, - .initiate_locality_check = gsc_hdcp_initiate_locality_check, - .verify_lprime = gsc_hdcp_verify_lprime, - .get_session_key = gsc_hdcp_get_session_key, - .repeater_check_flow_prepare_ack = - gsc_hdcp_repeater_check_flow_prepare_ack, - .verify_mprime = gsc_hdcp_verify_mprime, - .enable_hdcp_authentication = gsc_hdcp_enable_authentication, - .close_hdcp_session = gsc_hdcp_close_session, -}; - /*This function helps allocate memory for the command that we will send to gsc cs */ static int intel_hdcp_gsc_initialize_message(struct drm_i915_private *i915, struct intel_hdcp_gsc_message *hdcp_message) @@ -681,6 +84,22 @@ static int intel_hdcp_gsc_initialize_message(struct drm_i915_private *i915, return err; } +static const struct i915_hdcp_ops gsc_hdcp_ops = { + .initiate_hdcp2_session = intel_hdcp_gsc_initiate_session, + .verify_receiver_cert_prepare_km = + intel_hdcp_gsc_verify_receiver_cert_prepare_km, + .verify_hprime = intel_hdcp_gsc_verify_hprime, + .store_pairing_info = intel_hdcp_gsc_store_pairing_info, + .initiate_locality_check = intel_hdcp_gsc_initiate_locality_check, + .verify_lprime = intel_hdcp_gsc_verify_lprime, + .get_session_key = intel_hdcp_gsc_get_session_key, + .repeater_check_flow_prepare_ack = + intel_hdcp_gsc_repeater_check_flow_prepare_ack, + .verify_mprime = intel_hdcp_gsc_verify_mprime, + .enable_hdcp_authentication = intel_hdcp_gsc_enable_authentication, + .close_hdcp_session = intel_hdcp_gsc_close_session, +}; + static int intel_hdcp_gsc_hdcp2_init(struct drm_i915_private *i915) { struct intel_hdcp_gsc_message *hdcp_message; diff --git a/drivers/gpu/drm/i915/display/intel_hdcp_gsc_message.c b/drivers/gpu/drm/i915/display/intel_hdcp_gsc_message.c new file mode 100644 index 000000000000..3938ace3ad60 --- /dev/null +++ b/drivers/gpu/drm/i915/display/intel_hdcp_gsc_message.c @@ -0,0 +1,592 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright 2023, Intel Corporation. + */ + +#include <drm/i915_hdcp_interface.h> +#include <linux/err.h> + +#include "i915_drv.h" +#include "intel_hdcp_gsc_message.h" + +int +intel_hdcp_gsc_initiate_session(struct device *dev, struct hdcp_port_data *data, + struct hdcp2_ake_init *ake_data) +{ + struct wired_cmd_initiate_hdcp2_session_in session_init_in = { { 0 } }; + struct wired_cmd_initiate_hdcp2_session_out + session_init_out = { { 0 } }; + struct drm_i915_private *i915; + ssize_t byte; + + if (!dev || !data || !ake_data) + return -EINVAL; + + i915 = kdev_to_i915(dev); + if (!i915) { + dev_err(dev, "DRM not initialized, aborting HDCP.\n"); + return -ENODEV; + } + + session_init_in.header.api_version = HDCP_API_VERSION; + session_init_in.header.command_id = WIRED_INITIATE_HDCP2_SESSION; + session_init_in.header.status = FW_HDCP_STATUS_SUCCESS; + session_init_in.header.buffer_len = + WIRED_CMD_BUF_LEN_INITIATE_HDCP2_SESSION_IN; + + session_init_in.port.integrated_port_type = data->port_type; + session_init_in.port.physical_port = (u8)data->hdcp_ddi; + session_init_in.port.attached_transcoder = (u8)data->hdcp_transcoder; + session_init_in.protocol = data->protocol; + + byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&session_init_in, + sizeof(session_init_in), + (u8 *)&session_init_out, + sizeof(session_init_out)); + if (byte < 0) { + drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte); + return byte; + } + + if (session_init_out.header.status != FW_HDCP_STATUS_SUCCESS) { + drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. Status: 0x%X\n", + WIRED_INITIATE_HDCP2_SESSION, + session_init_out.header.status); + return -EIO; + } + + ake_data->msg_id = HDCP_2_2_AKE_INIT; + ake_data->tx_caps = session_init_out.tx_caps; + memcpy(ake_data->r_tx, session_init_out.r_tx, HDCP_2_2_RTX_LEN); + + return 0; +} + +int +intel_hdcp_gsc_verify_receiver_cert_prepare_km(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_ake_send_cert *rx_cert, + bool *km_stored, + struct hdcp2_ake_no_stored_km + *ek_pub_km, + size_t *msg_sz) +{ + struct wired_cmd_verify_receiver_cert_in verify_rxcert_in = { { 0 } }; + struct wired_cmd_verify_receiver_cert_out verify_rxcert_out = { { 0 } }; + struct drm_i915_private *i915; + ssize_t byte; + + if (!dev || !data || !rx_cert || !km_stored || !ek_pub_km || !msg_sz) + return -EINVAL; + + i915 = kdev_to_i915(dev); + if (!i915) { + dev_err(dev, "DRM not initialized, aborting HDCP.\n"); + return -ENODEV; + } + + verify_rxcert_in.header.api_version = HDCP_API_VERSION; + verify_rxcert_in.header.command_id = WIRED_VERIFY_RECEIVER_CERT; + verify_rxcert_in.header.status = FW_HDCP_STATUS_SUCCESS; + verify_rxcert_in.header.buffer_len = + WIRED_CMD_BUF_LEN_VERIFY_RECEIVER_CERT_IN; + + verify_rxcert_in.port.integrated_port_type = data->port_type; + verify_rxcert_in.port.physical_port = (u8)data->hdcp_ddi; + verify_rxcert_in.port.attached_transcoder = (u8)data->hdcp_transcoder; + + verify_rxcert_in.cert_rx = rx_cert->cert_rx; + memcpy(verify_rxcert_in.r_rx, &rx_cert->r_rx, HDCP_2_2_RRX_LEN); + memcpy(verify_rxcert_in.rx_caps, rx_cert->rx_caps, HDCP_2_2_RXCAPS_LEN); + + byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&verify_rxcert_in, + sizeof(verify_rxcert_in), + (u8 *)&verify_rxcert_out, + sizeof(verify_rxcert_out)); + if (byte < 0) { + drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed: %zd\n", byte); + return byte; + } + + if (verify_rxcert_out.header.status != FW_HDCP_STATUS_SUCCESS) { + drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. Status: 0x%X\n", + WIRED_VERIFY_RECEIVER_CERT, + verify_rxcert_out.header.status); + return -EIO; + } + + *km_stored = !!verify_rxcert_out.km_stored; + if (verify_rxcert_out.km_stored) { + ek_pub_km->msg_id = HDCP_2_2_AKE_STORED_KM; + *msg_sz = sizeof(struct hdcp2_ake_stored_km); + } else { + ek_pub_km->msg_id = HDCP_2_2_AKE_NO_STORED_KM; + *msg_sz = sizeof(struct hdcp2_ake_no_stored_km); + } + + memcpy(ek_pub_km->e_kpub_km, &verify_rxcert_out.ekm_buff, + sizeof(verify_rxcert_out.ekm_buff)); + + return 0; +} + +int +intel_hdcp_gsc_verify_hprime(struct device *dev, struct hdcp_port_data *data, + struct hdcp2_ake_send_hprime *rx_hprime) +{ + struct wired_cmd_ake_send_hprime_in send_hprime_in = { { 0 } }; + struct wired_cmd_ake_send_hprime_out send_hprime_out = { { 0 } }; + struct drm_i915_private *i915; + ssize_t byte; + + if (!dev || !data || !rx_hprime) + return -EINVAL; + + i915 = kdev_to_i915(dev); + if (!i915) { + dev_err(dev, "DRM not initialized, aborting HDCP.\n"); + return -ENODEV; + } + + send_hprime_in.header.api_version = HDCP_API_VERSION; + send_hprime_in.header.command_id = WIRED_AKE_SEND_HPRIME; + send_hprime_in.header.status = FW_HDCP_STATUS_SUCCESS; + send_hprime_in.header.buffer_len = WIRED_CMD_BUF_LEN_AKE_SEND_HPRIME_IN; + + send_hprime_in.port.integrated_port_type = data->port_type; + send_hprime_in.port.physical_port = (u8)data->hdcp_ddi; + send_hprime_in.port.attached_transcoder = (u8)data->hdcp_transcoder; + + memcpy(send_hprime_in.h_prime, rx_hprime->h_prime, + HDCP_2_2_H_PRIME_LEN); + + byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&send_hprime_in, + sizeof(send_hprime_in), + (u8 *)&send_hprime_out, + sizeof(send_hprime_out)); + if (byte < 0) { + drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte); + return byte; + } + + if (send_hprime_out.header.status != FW_HDCP_STATUS_SUCCESS) { + drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. Status: 0x%X\n", + WIRED_AKE_SEND_HPRIME, send_hprime_out.header.status); + return -EIO; + } + + return 0; +} + +int +intel_hdcp_gsc_store_pairing_info(struct device *dev, struct hdcp_port_data *data, + struct hdcp2_ake_send_pairing_info *pairing_info) +{ + struct wired_cmd_ake_send_pairing_info_in pairing_info_in = { { 0 } }; + struct wired_cmd_ake_send_pairing_info_out pairing_info_out = { { 0 } }; + struct drm_i915_private *i915; + ssize_t byte; + + if (!dev || !data || !pairing_info) + return -EINVAL; + + i915 = kdev_to_i915(dev); + if (!i915) { + dev_err(dev, "DRM not initialized, aborting HDCP.\n"); + return -ENODEV; + } + + pairing_info_in.header.api_version = HDCP_API_VERSION; + pairing_info_in.header.command_id = WIRED_AKE_SEND_PAIRING_INFO; + pairing_info_in.header.status = FW_HDCP_STATUS_SUCCESS; + pairing_info_in.header.buffer_len = + WIRED_CMD_BUF_LEN_SEND_PAIRING_INFO_IN; + + pairing_info_in.port.integrated_port_type = data->port_type; + pairing_info_in.port.physical_port = (u8)data->hdcp_ddi; + pairing_info_in.port.attached_transcoder = (u8)data->hdcp_transcoder; + + memcpy(pairing_info_in.e_kh_km, pairing_info->e_kh_km, + HDCP_2_2_E_KH_KM_LEN); + + byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&pairing_info_in, + sizeof(pairing_info_in), + (u8 *)&pairing_info_out, + sizeof(pairing_info_out)); + if (byte < 0) { + drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte); + return byte; + } + + if (pairing_info_out.header.status != FW_HDCP_STATUS_SUCCESS) { + drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. Status: 0x%X\n", + WIRED_AKE_SEND_PAIRING_INFO, + pairing_info_out.header.status); + return -EIO; + } + + return 0; +} + +int +intel_hdcp_gsc_initiate_locality_check(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_lc_init *lc_init_data) +{ + struct wired_cmd_init_locality_check_in lc_init_in = { { 0 } }; + struct wired_cmd_init_locality_check_out lc_init_out = { { 0 } }; + struct drm_i915_private *i915; + ssize_t byte; + + if (!dev || !data || !lc_init_data) + return -EINVAL; + + i915 = kdev_to_i915(dev); + if (!i915) { + dev_err(dev, "DRM not initialized, aborting HDCP.\n"); + return -ENODEV; + } + + lc_init_in.header.api_version = HDCP_API_VERSION; + lc_init_in.header.command_id = WIRED_INIT_LOCALITY_CHECK; + lc_init_in.header.status = FW_HDCP_STATUS_SUCCESS; + lc_init_in.header.buffer_len = WIRED_CMD_BUF_LEN_INIT_LOCALITY_CHECK_IN; + + lc_init_in.port.integrated_port_type = data->port_type; + lc_init_in.port.physical_port = (u8)data->hdcp_ddi; + lc_init_in.port.attached_transcoder = (u8)data->hdcp_transcoder; + + byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&lc_init_in, sizeof(lc_init_in), + (u8 *)&lc_init_out, sizeof(lc_init_out)); + if (byte < 0) { + drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte); + return byte; + } + + if (lc_init_out.header.status != FW_HDCP_STATUS_SUCCESS) { + drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. status: 0x%X\n", + WIRED_INIT_LOCALITY_CHECK, lc_init_out.header.status); + return -EIO; + } + + lc_init_data->msg_id = HDCP_2_2_LC_INIT; + memcpy(lc_init_data->r_n, lc_init_out.r_n, HDCP_2_2_RN_LEN); + + return 0; +} + +int +intel_hdcp_gsc_verify_lprime(struct device *dev, struct hdcp_port_data *data, + struct hdcp2_lc_send_lprime *rx_lprime) +{ + struct wired_cmd_validate_locality_in verify_lprime_in = { { 0 } }; + struct wired_cmd_validate_locality_out verify_lprime_out = { { 0 } }; + struct drm_i915_private *i915; + ssize_t byte; + + if (!dev || !data || !rx_lprime) + return -EINVAL; + + i915 = kdev_to_i915(dev); + if (!i915) { + dev_err(dev, "DRM not initialized, aborting HDCP.\n"); + return -ENODEV; + } + + verify_lprime_in.header.api_version = HDCP_API_VERSION; + verify_lprime_in.header.command_id = WIRED_VALIDATE_LOCALITY; + verify_lprime_in.header.status = FW_HDCP_STATUS_SUCCESS; + verify_lprime_in.header.buffer_len = + WIRED_CMD_BUF_LEN_VALIDATE_LOCALITY_IN; + + verify_lprime_in.port.integrated_port_type = data->port_type; + verify_lprime_in.port.physical_port = (u8)data->hdcp_ddi; + verify_lprime_in.port.attached_transcoder = (u8)data->hdcp_transcoder; + + memcpy(verify_lprime_in.l_prime, rx_lprime->l_prime, + HDCP_2_2_L_PRIME_LEN); + + byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&verify_lprime_in, + sizeof(verify_lprime_in), + (u8 *)&verify_lprime_out, + sizeof(verify_lprime_out)); + if (byte < 0) { + drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte); + return byte; + } + + if (verify_lprime_out.header.status != FW_HDCP_STATUS_SUCCESS) { + drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: 0x%X\n", + WIRED_VALIDATE_LOCALITY, + verify_lprime_out.header.status); + return -EIO; + } + + return 0; +} + +int intel_hdcp_gsc_get_session_key(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_ske_send_eks *ske_data) +{ + struct wired_cmd_get_session_key_in get_skey_in = { { 0 } }; + struct wired_cmd_get_session_key_out get_skey_out = { { 0 } }; + struct drm_i915_private *i915; + ssize_t byte; + + if (!dev || !data || !ske_data) + return -EINVAL; + + i915 = kdev_to_i915(dev); + if (!i915) { + dev_err(dev, "DRM not initialized, aborting HDCP.\n"); + return -ENODEV; + } + + get_skey_in.header.api_version = HDCP_API_VERSION; + get_skey_in.header.command_id = WIRED_GET_SESSION_KEY; + get_skey_in.header.status = FW_HDCP_STATUS_SUCCESS; + get_skey_in.header.buffer_len = WIRED_CMD_BUF_LEN_GET_SESSION_KEY_IN; + + get_skey_in.port.integrated_port_type = data->port_type; + get_skey_in.port.physical_port = (u8)data->hdcp_ddi; + get_skey_in.port.attached_transcoder = (u8)data->hdcp_transcoder; + + byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&get_skey_in, sizeof(get_skey_in), + (u8 *)&get_skey_out, sizeof(get_skey_out)); + if (byte < 0) { + drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte); + return byte; + } + + if (get_skey_out.header.status != FW_HDCP_STATUS_SUCCESS) { + drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: 0x%X\n", + WIRED_GET_SESSION_KEY, get_skey_out.header.status); + return -EIO; + } + + ske_data->msg_id = HDCP_2_2_SKE_SEND_EKS; + memcpy(ske_data->e_dkey_ks, get_skey_out.e_dkey_ks, + HDCP_2_2_E_DKEY_KS_LEN); + memcpy(ske_data->riv, get_skey_out.r_iv, HDCP_2_2_RIV_LEN); + + return 0; +} + +int +intel_hdcp_gsc_repeater_check_flow_prepare_ack(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_rep_send_receiverid_list + *rep_topology, + struct hdcp2_rep_send_ack + *rep_send_ack) +{ + struct wired_cmd_verify_repeater_in verify_repeater_in = { { 0 } }; + struct wired_cmd_verify_repeater_out verify_repeater_out = { { 0 } }; + struct drm_i915_private *i915; + ssize_t byte; + + if (!dev || !rep_topology || !rep_send_ack || !data) + return -EINVAL; + + i915 = kdev_to_i915(dev); + if (!i915) { + dev_err(dev, "DRM not initialized, aborting HDCP.\n"); + return -ENODEV; + } + + verify_repeater_in.header.api_version = HDCP_API_VERSION; + verify_repeater_in.header.command_id = WIRED_VERIFY_REPEATER; + verify_repeater_in.header.status = FW_HDCP_STATUS_SUCCESS; + verify_repeater_in.header.buffer_len = + WIRED_CMD_BUF_LEN_VERIFY_REPEATER_IN; + + verify_repeater_in.port.integrated_port_type = data->port_type; + verify_repeater_in.port.physical_port = (u8)data->hdcp_ddi; + verify_repeater_in.port.attached_transcoder = (u8)data->hdcp_transcoder; + + memcpy(verify_repeater_in.rx_info, rep_topology->rx_info, + HDCP_2_2_RXINFO_LEN); + memcpy(verify_repeater_in.seq_num_v, rep_topology->seq_num_v, + HDCP_2_2_SEQ_NUM_LEN); + memcpy(verify_repeater_in.v_prime, rep_topology->v_prime, + HDCP_2_2_V_PRIME_HALF_LEN); + memcpy(verify_repeater_in.receiver_ids, rep_topology->receiver_ids, + HDCP_2_2_RECEIVER_IDS_MAX_LEN); + + byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&verify_repeater_in, + sizeof(verify_repeater_in), + (u8 *)&verify_repeater_out, + sizeof(verify_repeater_out)); + if (byte < 0) { + drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte); + return byte; + } + + if (verify_repeater_out.header.status != FW_HDCP_STATUS_SUCCESS) { + drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: 0x%X\n", + WIRED_VERIFY_REPEATER, + verify_repeater_out.header.status); + return -EIO; + } + + memcpy(rep_send_ack->v, verify_repeater_out.v, + HDCP_2_2_V_PRIME_HALF_LEN); + rep_send_ack->msg_id = HDCP_2_2_REP_SEND_ACK; + + return 0; +} + +int intel_hdcp_gsc_verify_mprime(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_rep_stream_ready *stream_ready) +{ + struct wired_cmd_repeater_auth_stream_req_in *verify_mprime_in; + struct wired_cmd_repeater_auth_stream_req_out + verify_mprime_out = { { 0 } }; + struct drm_i915_private *i915; + ssize_t byte; + size_t cmd_size; + + if (!dev || !stream_ready || !data) + return -EINVAL; + + i915 = kdev_to_i915(dev); + if (!i915) { + dev_err(dev, "DRM not initialized, aborting HDCP.\n"); + return -ENODEV; + } + + cmd_size = struct_size(verify_mprime_in, streams, data->k); + if (cmd_size == SIZE_MAX) + return -EINVAL; + + verify_mprime_in = kzalloc(cmd_size, GFP_KERNEL); + if (!verify_mprime_in) + return -ENOMEM; + + verify_mprime_in->header.api_version = HDCP_API_VERSION; + verify_mprime_in->header.command_id = WIRED_REPEATER_AUTH_STREAM_REQ; + verify_mprime_in->header.status = FW_HDCP_STATUS_SUCCESS; + verify_mprime_in->header.buffer_len = cmd_size - sizeof(verify_mprime_in->header); + + verify_mprime_in->port.integrated_port_type = data->port_type; + verify_mprime_in->port.physical_port = (u8)data->hdcp_ddi; + verify_mprime_in->port.attached_transcoder = (u8)data->hdcp_transcoder; + + memcpy(verify_mprime_in->m_prime, stream_ready->m_prime, HDCP_2_2_MPRIME_LEN); + drm_hdcp_cpu_to_be24(verify_mprime_in->seq_num_m, data->seq_num_m); + + memcpy(verify_mprime_in->streams, data->streams, + array_size(data->k, sizeof(*data->streams))); + + verify_mprime_in->k = cpu_to_be16(data->k); + + byte = intel_hdcp_gsc_msg_send(i915, (u8 *)verify_mprime_in, cmd_size, + (u8 *)&verify_mprime_out, + sizeof(verify_mprime_out)); + kfree(verify_mprime_in); + if (byte < 0) { + drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte); + return byte; + } + + if (verify_mprime_out.header.status != FW_HDCP_STATUS_SUCCESS) { + drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: 0x%X\n", + WIRED_REPEATER_AUTH_STREAM_REQ, + verify_mprime_out.header.status); + return -EIO; + } + + return 0; +} + +int intel_hdcp_gsc_enable_authentication(struct device *dev, + struct hdcp_port_data *data) +{ + struct wired_cmd_enable_auth_in enable_auth_in = { { 0 } }; + struct wired_cmd_enable_auth_out enable_auth_out = { { 0 } }; + struct drm_i915_private *i915; + ssize_t byte; + + if (!dev || !data) + return -EINVAL; + + i915 = kdev_to_i915(dev); + if (!i915) { + dev_err(dev, "DRM not initialized, aborting HDCP.\n"); + return -ENODEV; + } + + enable_auth_in.header.api_version = HDCP_API_VERSION; + enable_auth_in.header.command_id = WIRED_ENABLE_AUTH; + enable_auth_in.header.status = FW_HDCP_STATUS_SUCCESS; + enable_auth_in.header.buffer_len = WIRED_CMD_BUF_LEN_ENABLE_AUTH_IN; + + enable_auth_in.port.integrated_port_type = data->port_type; + enable_auth_in.port.physical_port = (u8)data->hdcp_ddi; + enable_auth_in.port.attached_transcoder = (u8)data->hdcp_transcoder; + enable_auth_in.stream_type = data->streams[0].stream_type; + + byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&enable_auth_in, + sizeof(enable_auth_in), + (u8 *)&enable_auth_out, + sizeof(enable_auth_out)); + if (byte < 0) { + drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte); + return byte; + } + + if (enable_auth_out.header.status != FW_HDCP_STATUS_SUCCESS) { + drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: 0x%X\n", + WIRED_ENABLE_AUTH, enable_auth_out.header.status); + return -EIO; + } + + return 0; +} + +int +intel_hdcp_gsc_close_session(struct device *dev, struct hdcp_port_data *data) +{ + struct wired_cmd_close_session_in session_close_in = { { 0 } }; + struct wired_cmd_close_session_out session_close_out = { { 0 } }; + struct drm_i915_private *i915; + ssize_t byte; + + if (!dev || !data) + return -EINVAL; + + i915 = kdev_to_i915(dev); + if (!i915) { + dev_err(dev, "DRM not initialized, aborting HDCP.\n"); + return -ENODEV; + } + + session_close_in.header.api_version = HDCP_API_VERSION; + session_close_in.header.command_id = WIRED_CLOSE_SESSION; + session_close_in.header.status = FW_HDCP_STATUS_SUCCESS; + session_close_in.header.buffer_len = + WIRED_CMD_BUF_LEN_CLOSE_SESSION_IN; + + session_close_in.port.integrated_port_type = data->port_type; + session_close_in.port.physical_port = (u8)data->hdcp_ddi; + session_close_in.port.attached_transcoder = (u8)data->hdcp_transcoder; + + byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&session_close_in, + sizeof(session_close_in), + (u8 *)&session_close_out, + sizeof(session_close_out)); + if (byte < 0) { + drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte); + return byte; + } + + if (session_close_out.header.status != FW_HDCP_STATUS_SUCCESS) { + drm_dbg_kms(&i915->drm, "Session Close Failed. status: 0x%X\n", + session_close_out.header.status); + return -EIO; + } + + return 0; +} diff --git a/drivers/gpu/drm/i915/display/intel_hdcp_gsc_message.h b/drivers/gpu/drm/i915/display/intel_hdcp_gsc_message.h new file mode 100644 index 000000000000..ce199d6f6232 --- /dev/null +++ b/drivers/gpu/drm/i915/display/intel_hdcp_gsc_message.h @@ -0,0 +1,72 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2023 Intel Corporation + */ + +#ifndef __INTEL_HDCP_GSC_MESSAGE_H__ +#define __INTEL_HDCP_GSC_MESSAGE_H__ + +#include <linux/types.h> + +struct device; +struct drm_i915_private; +struct hdcp_port_data; +struct hdcp2_ake_init; +struct hdcp2_ake_send_cert; +struct hdcp2_ake_no_stored_km; +struct hdcp2_ake_send_hprime; +struct hdcp2_ake_send_pairing_info; +struct hdcp2_lc_init; +struct hdcp2_lc_send_lprime; +struct hdcp2_ske_send_eks; +struct hdcp2_rep_send_receiverid_list; +struct hdcp2_rep_send_ack; +struct hdcp2_rep_stream_ready; + +ssize_t intel_hdcp_gsc_msg_send(struct drm_i915_private *i915, u8 *msg_in, + size_t msg_in_len, u8 *msg_out, + size_t msg_out_len); +bool intel_hdcp_gsc_check_status(struct drm_i915_private *i915); +int +intel_hdcp_gsc_initiate_session(struct device *dev, struct hdcp_port_data *data, + struct hdcp2_ake_init *ake_data); +int +intel_hdcp_gsc_verify_receiver_cert_prepare_km(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_ake_send_cert *rx_cert, + bool *km_stored, + struct hdcp2_ake_no_stored_km + *ek_pub_km, + size_t *msg_sz); +int +intel_hdcp_gsc_verify_hprime(struct device *dev, struct hdcp_port_data *data, + struct hdcp2_ake_send_hprime *rx_hprime); +int +intel_hdcp_gsc_store_pairing_info(struct device *dev, struct hdcp_port_data *data, + struct hdcp2_ake_send_pairing_info *pairing_info); +int +intel_hdcp_gsc_initiate_locality_check(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_lc_init *lc_init_data); +int +intel_hdcp_gsc_verify_lprime(struct device *dev, struct hdcp_port_data *data, + struct hdcp2_lc_send_lprime *rx_lprime); +int intel_hdcp_gsc_get_session_key(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_ske_send_eks *ske_data); +int +intel_hdcp_gsc_repeater_check_flow_prepare_ack(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_rep_send_receiverid_list + *rep_topology, + struct hdcp2_rep_send_ack + *rep_send_ack); +int intel_hdcp_gsc_verify_mprime(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_rep_stream_ready *stream_ready); +int intel_hdcp_gsc_enable_authentication(struct device *dev, + struct hdcp_port_data *data); +int +intel_hdcp_gsc_close_session(struct device *dev, struct hdcp_port_data *data); + +#endif /* __INTEL_HDCP_GSC_MESSAGE_H__ */
Create a new file intel_hdcp_gsc_message that contain functions which fill the hdcp messages we send to gsc cs this refactor will help us reuse code for Xe later on --v2 -add the missed file for proper build --v3 -use forward declarations instead of #includes [Jani] --v4 -move linux/err.h to intel_hdcp_gsc_message.c from intel_hdcp_gsc_message.h [Jani] Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com> --- drivers/gpu/drm/i915/Makefile | 1 + drivers/gpu/drm/i915/display/intel_hdcp_gsc.c | 615 +----------------- .../drm/i915/display/intel_hdcp_gsc_message.c | 592 +++++++++++++++++ .../drm/i915/display/intel_hdcp_gsc_message.h | 72 ++ 4 files changed, 682 insertions(+), 598 deletions(-) create mode 100644 drivers/gpu/drm/i915/display/intel_hdcp_gsc_message.c create mode 100644 drivers/gpu/drm/i915/display/intel_hdcp_gsc_message.h