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path: root/drivers/gpu/drm/i915/display/intel_hdcp.c
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Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_hdcp.c')
-rw-r--r--drivers/gpu/drm/i915/display/intel_hdcp.c101
1 files changed, 58 insertions, 43 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
index 27bd7276a82d..6ec5ceeab601 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
@@ -14,7 +14,8 @@
#include <drm/i915_component.h>
#include "i915_reg.h"
-#include "intel_drv.h"
+#include "intel_display_power.h"
+#include "intel_display_types.h"
#include "intel_hdcp.h"
#include "intel_sideband.h"
@@ -244,8 +245,7 @@ static int intel_hdcp_load_keys(struct drm_i915_private *dev_priv)
static int intel_write_sha_text(struct drm_i915_private *dev_priv, u32 sha_text)
{
I915_WRITE(HDCP_SHA_TEXT, sha_text);
- if (intel_wait_for_register(&dev_priv->uncore, HDCP_REP_CTL,
- HDCP_SHA1_READY, HDCP_SHA1_READY, 1)) {
+ if (intel_de_wait_for_set(dev_priv, HDCP_REP_CTL, HDCP_SHA1_READY, 1)) {
DRM_ERROR("Timed out waiting for SHA1 ready\n");
return -ETIMEDOUT;
}
@@ -475,9 +475,8 @@ int intel_hdcp_validate_v_prime(struct intel_digital_port *intel_dig_port,
/* Tell the HW we're done with the hash and wait for it to ACK */
I915_WRITE(HDCP_REP_CTL, rep_ctl | HDCP_SHA1_COMPLETE_HASH);
- if (intel_wait_for_register(&dev_priv->uncore, HDCP_REP_CTL,
- HDCP_SHA1_COMPLETE,
- HDCP_SHA1_COMPLETE, 1)) {
+ if (intel_de_wait_for_set(dev_priv, HDCP_REP_CTL,
+ HDCP_SHA1_COMPLETE, 1)) {
DRM_ERROR("Timed out waiting for SHA1 complete\n");
return -ETIMEDOUT;
}
@@ -523,12 +522,16 @@ int intel_hdcp_auth_downstream(struct intel_connector *connector)
* authentication.
*/
num_downstream = DRM_HDCP_NUM_DOWNSTREAM(bstatus[0]);
- if (num_downstream == 0)
+ if (num_downstream == 0) {
+ DRM_DEBUG_KMS("Repeater with zero downstream devices\n");
return -EINVAL;
+ }
ksv_fifo = kcalloc(DRM_HDCP_KSV_LEN, num_downstream, GFP_KERNEL);
- if (!ksv_fifo)
+ if (!ksv_fifo) {
+ DRM_DEBUG_KMS("Out of mem: ksv_fifo\n");
return -ENOMEM;
+ }
ret = shim->read_ksv_fifo(intel_dig_port, num_downstream, ksv_fifo);
if (ret)
@@ -616,9 +619,8 @@ static int intel_hdcp_auth(struct intel_connector *connector)
I915_WRITE(PORT_HDCP_CONF(port), HDCP_CONF_CAPTURE_AN);
/* Wait for An to be acquired */
- if (intel_wait_for_register(&dev_priv->uncore, PORT_HDCP_STATUS(port),
- HDCP_STATUS_AN_READY,
- HDCP_STATUS_AN_READY, 1)) {
+ if (intel_de_wait_for_set(dev_priv, PORT_HDCP_STATUS(port),
+ HDCP_STATUS_AN_READY, 1)) {
DRM_ERROR("Timed out waiting for An\n");
return -ETIMEDOUT;
}
@@ -702,9 +704,9 @@ static int intel_hdcp_auth(struct intel_connector *connector)
}
/* Wait for encryption confirmation */
- if (intel_wait_for_register(&dev_priv->uncore, PORT_HDCP_STATUS(port),
- HDCP_STATUS_ENC, HDCP_STATUS_ENC,
- ENCRYPT_STATUS_CHANGE_TIMEOUT_MS)) {
+ if (intel_de_wait_for_set(dev_priv, PORT_HDCP_STATUS(port),
+ HDCP_STATUS_ENC,
+ ENCRYPT_STATUS_CHANGE_TIMEOUT_MS)) {
DRM_ERROR("Timed out waiting for encryption\n");
return -ETIMEDOUT;
}
@@ -734,8 +736,7 @@ static int _intel_hdcp_disable(struct intel_connector *connector)
hdcp->hdcp_encrypted = false;
I915_WRITE(PORT_HDCP_CONF(port), 0);
- if (intel_wait_for_register(&dev_priv->uncore,
- PORT_HDCP_STATUS(port), ~0, 0,
+ if (intel_de_wait_for_clear(dev_priv, PORT_HDCP_STATUS(port), ~0,
ENCRYPT_STATUS_CHANGE_TIMEOUT_MS)) {
DRM_ERROR("Failed to disable HDCP, timeout clearing status\n");
return -ETIMEDOUT;
@@ -866,7 +867,6 @@ static void intel_hdcp_prop_work(struct work_struct *work)
prop_work);
struct intel_connector *connector = intel_hdcp_to_connector(hdcp);
struct drm_device *dev = connector->base.dev;
- struct drm_connector_state *state;
drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
mutex_lock(&hdcp->mutex);
@@ -876,10 +876,9 @@ static void intel_hdcp_prop_work(struct work_struct *work)
* those to UNDESIRED is handled by core. If value == UNDESIRED,
* we're running just after hdcp has been disabled, so just exit
*/
- if (hdcp->value != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) {
- state = connector->base.state;
- state->content_protection = hdcp->value;
- }
+ if (hdcp->value != DRM_MODE_CONTENT_PROTECTION_UNDESIRED)
+ drm_hdcp_update_content_protection(&connector->base,
+ hdcp->value);
mutex_unlock(&hdcp->mutex);
drm_modeset_unlock(&dev->mode_config.connection_mutex);
@@ -1207,8 +1206,10 @@ static int hdcp2_authentication_key_exchange(struct intel_connector *connector)
if (ret < 0)
return ret;
- if (msgs.send_cert.rx_caps[0] != HDCP_2_2_RX_CAPS_VERSION_VAL)
+ if (msgs.send_cert.rx_caps[0] != HDCP_2_2_RX_CAPS_VERSION_VAL) {
+ DRM_DEBUG_KMS("cert.rx_caps dont claim HDCP2.2\n");
return -EINVAL;
+ }
hdcp->is_repeater = HDCP_2_2_RX_REPEATER(msgs.send_cert.rx_caps[2]);
@@ -1512,10 +1513,9 @@ static int hdcp2_enable_encryption(struct intel_connector *connector)
CTL_LINK_ENCRYPTION_REQ);
}
- ret = intel_wait_for_register(&dev_priv->uncore, HDCP2_STATUS_DDI(port),
- LINK_ENCRYPTION_STATUS,
- LINK_ENCRYPTION_STATUS,
- ENCRYPT_STATUS_CHANGE_TIMEOUT_MS);
+ ret = intel_de_wait_for_set(dev_priv, HDCP2_STATUS_DDI(port),
+ LINK_ENCRYPTION_STATUS,
+ ENCRYPT_STATUS_CHANGE_TIMEOUT_MS);
return ret;
}
@@ -1533,8 +1533,8 @@ static int hdcp2_disable_encryption(struct intel_connector *connector)
I915_WRITE(HDCP2_CTL_DDI(port),
I915_READ(HDCP2_CTL_DDI(port)) & ~CTL_LINK_ENCRYPTION_REQ);
- ret = intel_wait_for_register(&dev_priv->uncore, HDCP2_STATUS_DDI(port),
- LINK_ENCRYPTION_STATUS, 0x0,
+ ret = intel_de_wait_for_clear(dev_priv, HDCP2_STATUS_DDI(port),
+ LINK_ENCRYPTION_STATUS,
ENCRYPT_STATUS_CHANGE_TIMEOUT_MS);
if (ret == -ETIMEDOUT)
DRM_DEBUG_KMS("Disable Encryption Timedout");
@@ -1749,14 +1749,15 @@ static const struct component_ops i915_hdcp_component_ops = {
.unbind = i915_hdcp_component_unbind,
};
-static inline int initialize_hdcp_port_data(struct intel_connector *connector)
+static inline int initialize_hdcp_port_data(struct intel_connector *connector,
+ const struct intel_hdcp_shim *shim)
{
struct intel_hdcp *hdcp = &connector->hdcp;
struct hdcp_port_data *data = &hdcp->port_data;
data->port = connector->encoder->port;
data->port_type = (u8)HDCP_PORT_TYPE_INTEGRATED;
- data->protocol = (u8)hdcp->shim->protocol;
+ data->protocol = (u8)shim->protocol;
data->k = 1;
if (!data->streams)
@@ -1806,12 +1807,13 @@ void intel_hdcp_component_init(struct drm_i915_private *dev_priv)
}
}
-static void intel_hdcp2_init(struct intel_connector *connector)
+static void intel_hdcp2_init(struct intel_connector *connector,
+ const struct intel_hdcp_shim *shim)
{
struct intel_hdcp *hdcp = &connector->hdcp;
int ret;
- ret = initialize_hdcp_port_data(connector);
+ ret = initialize_hdcp_port_data(connector, shim);
if (ret) {
DRM_DEBUG_KMS("Mei hdcp data init failed\n");
return;
@@ -1830,23 +1832,28 @@ int intel_hdcp_init(struct intel_connector *connector,
if (!shim)
return -EINVAL;
- ret = drm_connector_attach_content_protection_property(&connector->base);
- if (ret)
+ if (is_hdcp2_supported(dev_priv))
+ intel_hdcp2_init(connector, shim);
+
+ ret =
+ drm_connector_attach_content_protection_property(&connector->base,
+ hdcp->hdcp2_supported);
+ if (ret) {
+ hdcp->hdcp2_supported = false;
+ kfree(hdcp->port_data.streams);
return ret;
+ }
hdcp->shim = shim;
mutex_init(&hdcp->mutex);
INIT_DELAYED_WORK(&hdcp->check_work, intel_hdcp_check_work);
INIT_WORK(&hdcp->prop_work, intel_hdcp_prop_work);
-
- if (is_hdcp2_supported(dev_priv))
- intel_hdcp2_init(connector);
init_waitqueue_head(&hdcp->cp_irq_queue);
return 0;
}
-int intel_hdcp_enable(struct intel_connector *connector)
+int intel_hdcp_enable(struct intel_connector *connector, u8 content_type)
{
struct intel_hdcp *hdcp = &connector->hdcp;
unsigned long check_link_interval = DRM_HDCP_CHECK_PERIOD_MS;
@@ -1857,6 +1864,7 @@ int intel_hdcp_enable(struct intel_connector *connector)
mutex_lock(&hdcp->mutex);
WARN_ON(hdcp->value == DRM_MODE_CONTENT_PROTECTION_ENABLED);
+ hdcp->content_type = content_type;
/*
* Considering that HDCP2.2 is more secure than HDCP1.4, If the setup
@@ -1868,8 +1876,12 @@ int intel_hdcp_enable(struct intel_connector *connector)
check_link_interval = DRM_HDCP2_CHECK_PERIOD_MS;
}
- /* When HDCP2.2 fails, HDCP1.4 will be attempted */
- if (ret && intel_hdcp_capable(connector)) {
+ /*
+ * When HDCP2.2 fails and Content Type is not Type1, HDCP1.4 will
+ * be attempted.
+ */
+ if (ret && intel_hdcp_capable(connector) &&
+ hdcp->content_type != DRM_MODE_HDCP_CONTENT_TYPE1) {
ret = _intel_hdcp_enable(connector);
}
@@ -1951,12 +1963,15 @@ void intel_hdcp_atomic_check(struct drm_connector *connector,
/*
* Nothing to do if the state didn't change, or HDCP was activated since
- * the last commit
+ * the last commit. And also no change in hdcp content type.
*/
if (old_cp == new_cp ||
(old_cp == DRM_MODE_CONTENT_PROTECTION_DESIRED &&
- new_cp == DRM_MODE_CONTENT_PROTECTION_ENABLED))
- return;
+ new_cp == DRM_MODE_CONTENT_PROTECTION_ENABLED)) {
+ if (old_state->hdcp_content_type ==
+ new_state->hdcp_content_type)
+ return;
+ }
crtc_state = drm_atomic_get_new_crtc_state(new_state->state,
new_state->crtc);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.