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@xxxxxxxxx>
---
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>
+
+#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
