| /* |
| * Copyright © 2018 Intel Corporation |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| * IN THE SOFTWARE. |
| * |
| */ |
| |
| #include <poll.h> |
| #include <fcntl.h> |
| #include <sys/epoll.h> |
| #include <sys/stat.h> |
| #include <libudev.h> |
| #include "igt.h" |
| #include "igt_sysfs.h" |
| #include "igt_kms.h" |
| #include "igt_kmod.h" |
| |
| IGT_TEST_DESCRIPTION("Test content protection (HDCP)"); |
| |
| struct data { |
| int drm_fd; |
| igt_display_t display; |
| struct igt_fb red, green; |
| unsigned int cp_tests; |
| } data; |
| |
| /* Test flags */ |
| #define CP_DPMS (1 << 0) |
| #define CP_LIC (1 << 1) |
| #define CP_MEI_RELOAD (1 << 2) |
| #define CP_TYPE_CHANGE (1 << 3) |
| #define CP_UEVENT (1 << 4) |
| |
| #define CP_UNDESIRED 0 |
| #define CP_DESIRED 1 |
| #define CP_ENABLED 2 |
| |
| /* |
| * HDCP_CONTENT_TYPE_0 can be handled on both HDCP1.4 and HDCP2.2. Where as |
| * HDCP_CONTENT_TYPE_1 can be handled only through HDCP2.2. |
| */ |
| #define HDCP_CONTENT_TYPE_0 0 |
| #define HDCP_CONTENT_TYPE_1 1 |
| |
| #define LIC_PERIOD_MSEC (4 * 1000) |
| /* Kernel retry count=3, Max time per authentication allowed = 6Sec */ |
| #define KERNEL_AUTH_TIME_ALLOWED_MSEC (3 * 6 * 1000) |
| #define KERNEL_DISABLE_TIME_ALLOWED_MSEC (1 * 1000) |
| #define FLIP_EVENT_POLLING_TIMEOUT_MSEC 1000 |
| |
| __u8 facsimile_srm[] = { |
| 0x80, 0x0, 0x0, 0x05, 0x01, 0x0, 0x0, 0x36, 0x02, 0x51, 0x1E, 0xF2, |
| 0x1A, 0xCD, 0xE7, 0x26, 0x97, 0xF4, 0x01, 0x97, 0x10, 0x19, 0x92, 0x53, |
| 0xE9, 0xF0, 0x59, 0x95, 0xA3, 0x7A, 0x3B, 0xFE, 0xE0, 0x9C, 0x76, 0xDD, |
| 0x83, 0xAA, 0xC2, 0x5B, 0x24, 0xB3, 0x36, 0x84, 0x94, 0x75, 0x34, 0xDB, |
| 0x10, 0x9E, 0x3B, 0x23, 0x13, 0xD8, 0x7A, 0xC2, 0x30, 0x79, 0x84}; |
| |
| static void flip_handler(int fd, unsigned int sequence, unsigned int tv_sec, |
| unsigned int tv_usec, void *_data) |
| { |
| igt_debug("Flip event received.\n"); |
| } |
| |
| static int wait_flip_event(void) |
| { |
| int rc; |
| drmEventContext evctx; |
| struct pollfd pfd; |
| |
| evctx.version = 2; |
| evctx.vblank_handler = NULL; |
| evctx.page_flip_handler = flip_handler; |
| |
| pfd.fd = data.drm_fd; |
| pfd.events = POLLIN; |
| pfd.revents = 0; |
| |
| rc = poll(&pfd, 1, FLIP_EVENT_POLLING_TIMEOUT_MSEC); |
| switch (rc) { |
| case 0: |
| igt_info("Poll timeout. 1Sec.\n"); |
| rc = -ETIMEDOUT; |
| break; |
| case 1: |
| rc = drmHandleEvent(data.drm_fd, &evctx); |
| igt_assert_eq(rc, 0); |
| rc = 0; |
| break; |
| default: |
| igt_info("Unexpected poll rc %d\n", rc); |
| rc = -1; |
| break; |
| } |
| |
| return rc; |
| } |
| |
| static bool hdcp_event(struct udev_monitor *uevent_monitor, |
| struct udev *udev, uint32_t conn_id, uint32_t prop_id) |
| { |
| struct udev_device *dev; |
| dev_t udev_devnum; |
| struct stat s; |
| const char *hotplug, *connector, *property; |
| bool ret = false; |
| |
| dev = udev_monitor_receive_device(uevent_monitor); |
| if (!dev) |
| goto out; |
| |
| udev_devnum = udev_device_get_devnum(dev); |
| fstat(data.display.drm_fd, &s); |
| |
| hotplug = udev_device_get_property_value(dev, "HOTPLUG"); |
| if (!(memcmp(&s.st_rdev, &udev_devnum, sizeof(dev_t)) == 0 && |
| hotplug && atoi(hotplug) == 1)) { |
| igt_debug("Not a Hotplug event\n"); |
| goto out_dev; |
| } |
| |
| connector = udev_device_get_property_value(dev, "CONNECTOR"); |
| if (!(memcmp(&s.st_rdev, &udev_devnum, sizeof(dev_t)) == 0 && |
| connector && atoi(connector) == conn_id)) { |
| igt_debug("Not for connector id: %u\n", conn_id); |
| goto out_dev; |
| } |
| |
| property = udev_device_get_property_value(dev, "PROPERTY"); |
| if (!(memcmp(&s.st_rdev, &udev_devnum, sizeof(dev_t)) == 0 && |
| property && atoi(property) == prop_id)) { |
| igt_debug("Not for property id: %u\n", prop_id); |
| goto out_dev; |
| } |
| ret = true; |
| |
| out_dev: |
| udev_device_unref(dev); |
| out: |
| return ret; |
| } |
| |
| static void hdcp_udev_fini(struct udev_monitor *uevent_monitor, |
| struct udev *udev) |
| { |
| if (uevent_monitor) |
| udev_monitor_unref(uevent_monitor); |
| if (udev) |
| udev_unref(udev); |
| } |
| |
| static int hdcp_udev_init(struct udev_monitor *uevent_monitor, |
| struct udev *udev) |
| { |
| int ret = -EINVAL; |
| |
| udev = udev_new(); |
| if (!udev) { |
| igt_info("failed to create udev object\n"); |
| goto out; |
| } |
| |
| uevent_monitor = udev_monitor_new_from_netlink(udev, "udev"); |
| if (!uevent_monitor) { |
| igt_info("failed to create udev event monitor\n"); |
| goto out; |
| } |
| |
| ret = udev_monitor_filter_add_match_subsystem_devtype(uevent_monitor, |
| "drm", |
| "drm_minor"); |
| if (ret < 0) { |
| igt_info("failed to filter for drm events\n"); |
| goto out; |
| } |
| |
| ret = udev_monitor_enable_receiving(uevent_monitor); |
| if (ret < 0) { |
| igt_info("failed to enable udev event reception\n"); |
| goto out; |
| } |
| |
| return udev_monitor_get_fd(uevent_monitor); |
| |
| out: |
| hdcp_udev_fini(uevent_monitor, udev); |
| return ret; |
| } |
| |
| #define MAX_EVENTS 10 |
| static bool wait_for_hdcp_event(uint32_t conn_id, uint32_t prop_id, |
| uint32_t timeout_mSec) |
| { |
| |
| struct udev_monitor *uevent_monitor = NULL; |
| struct udev *udev = NULL; |
| int udev_fd, epoll_fd; |
| struct epoll_event event, events[MAX_EVENTS]; |
| bool ret = false; |
| |
| udev_fd = hdcp_udev_init(uevent_monitor, udev); |
| if (udev_fd < 0) |
| return false; |
| |
| epoll_fd = epoll_create1(0); |
| if (epoll_fd == -1) { |
| igt_info("Failed to create epoll fd. %d\n", epoll_fd); |
| goto out_ep_create; |
| } |
| |
| event.events = EPOLLIN | EPOLLERR; |
| event.data.fd = 0; |
| |
| if (epoll_ctl(epoll_fd, EPOLL_CTL_ADD, udev_fd, &event)) { |
| igt_info("failed to fd into epoll\n"); |
| goto out_ep_ctl; |
| } |
| |
| if (epoll_wait(epoll_fd, events, MAX_EVENTS, timeout_mSec)) |
| ret = hdcp_event(uevent_monitor, udev, conn_id, prop_id); |
| |
| out_ep_ctl: |
| if (close(epoll_fd)) |
| igt_info("failed to close the epoll fd\n"); |
| out_ep_create: |
| hdcp_udev_fini(uevent_monitor, udev); |
| return ret; |
| } |
| |
| static bool |
| wait_for_prop_value(igt_output_t *output, uint64_t expected, |
| uint32_t timeout_mSec) |
| { |
| uint64_t val; |
| int i; |
| |
| if (data.cp_tests & CP_UEVENT && expected != CP_UNDESIRED) { |
| igt_assert_f(wait_for_hdcp_event(output->id, |
| output->props[IGT_CONNECTOR_CONTENT_PROTECTION], |
| timeout_mSec), "uevent is not received"); |
| |
| val = igt_output_get_prop(output, |
| IGT_CONNECTOR_CONTENT_PROTECTION); |
| if (val == expected) |
| return true; |
| } else { |
| for (i = 0; i < timeout_mSec; i++) { |
| val = igt_output_get_prop(output, |
| IGT_CONNECTOR_CONTENT_PROTECTION); |
| if (val == expected) |
| return true; |
| usleep(1000); |
| } |
| } |
| |
| igt_info("prop_value mismatch %" PRId64 " != %" PRId64 "\n", |
| val, expected); |
| |
| return false; |
| } |
| |
| static void |
| commit_display_and_wait_for_flip(enum igt_commit_style s) |
| { |
| int ret; |
| uint32_t flag; |
| |
| if (s == COMMIT_ATOMIC) { |
| flag = DRM_MODE_PAGE_FLIP_EVENT | DRM_MODE_ATOMIC_ALLOW_MODESET; |
| igt_display_commit_atomic(&data.display, flag, NULL); |
| |
| ret = wait_flip_event(); |
| igt_assert_f(!ret, "wait_flip_event failed. %d\n", ret); |
| } else { |
| igt_display_commit2(&data.display, s); |
| |
| /* Wait for 50mSec */ |
| usleep(50 * 1000); |
| } |
| } |
| |
| static void modeset_with_fb(const enum pipe pipe, igt_output_t *output, |
| enum igt_commit_style s) |
| { |
| igt_display_t *display = &data.display; |
| drmModeModeInfo mode; |
| igt_plane_t *primary; |
| |
| igt_assert(kmstest_get_connector_default_mode( |
| display->drm_fd, output->config.connector, &mode)); |
| |
| igt_output_override_mode(output, &mode); |
| igt_output_set_pipe(output, pipe); |
| |
| igt_create_color_fb(display->drm_fd, mode.hdisplay, mode.vdisplay, |
| DRM_FORMAT_XRGB8888, LOCAL_DRM_FORMAT_MOD_NONE, |
| 1.f, 0.f, 0.f, &data.red); |
| igt_create_color_fb(display->drm_fd, mode.hdisplay, mode.vdisplay, |
| DRM_FORMAT_XRGB8888, LOCAL_DRM_FORMAT_MOD_NONE, |
| 0.f, 1.f, 0.f, &data.green); |
| |
| primary = igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY); |
| igt_display_commit2(display, s); |
| igt_plane_set_fb(primary, &data.red); |
| |
| /* Wait for Flip completion before starting the HDCP authentication */ |
| commit_display_and_wait_for_flip(s); |
| } |
| |
| static bool test_cp_enable(igt_output_t *output, enum igt_commit_style s, |
| int content_type, bool type_change) |
| { |
| igt_display_t *display = &data.display; |
| igt_plane_t *primary; |
| bool ret; |
| |
| primary = igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY); |
| |
| if (!type_change) |
| igt_output_set_prop_value(output, |
| IGT_CONNECTOR_CONTENT_PROTECTION, |
| CP_DESIRED); |
| |
| if (output->props[IGT_CONNECTOR_HDCP_CONTENT_TYPE]) |
| igt_output_set_prop_value(output, |
| IGT_CONNECTOR_HDCP_CONTENT_TYPE, |
| content_type); |
| igt_display_commit2(display, s); |
| |
| ret = wait_for_prop_value(output, CP_ENABLED, |
| KERNEL_AUTH_TIME_ALLOWED_MSEC); |
| if (ret) { |
| igt_plane_set_fb(primary, &data.green); |
| igt_display_commit2(display, s); |
| } |
| |
| return ret; |
| } |
| |
| static void test_cp_disable(igt_output_t *output, enum igt_commit_style s) |
| { |
| igt_display_t *display = &data.display; |
| igt_plane_t *primary; |
| bool ret; |
| |
| primary = igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY); |
| |
| /* |
| * Even on HDCP enable failed scenario, IGT should exit leaving the |
| * "content protection" at "UNDESIRED". |
| */ |
| igt_output_set_prop_value(output, IGT_CONNECTOR_CONTENT_PROTECTION, |
| CP_UNDESIRED); |
| igt_plane_set_fb(primary, &data.red); |
| igt_display_commit2(display, s); |
| |
| /* Wait for HDCP to be disabled, before crtc off */ |
| ret = wait_for_prop_value(output, CP_UNDESIRED, |
| KERNEL_DISABLE_TIME_ALLOWED_MSEC); |
| igt_assert_f(ret, "Content Protection not cleared\n"); |
| } |
| |
| static void test_cp_enable_with_retry(igt_output_t *output, |
| enum igt_commit_style s, int retry, |
| int content_type, bool expect_failure, |
| bool type_change) |
| { |
| int retry_orig = retry; |
| bool ret; |
| |
| do { |
| if (!type_change || retry_orig != retry) |
| test_cp_disable(output, s); |
| |
| ret = test_cp_enable(output, s, content_type, type_change); |
| |
| if (!ret && --retry) |
| igt_debug("Retry (%d/2) ...\n", 3 - retry); |
| } while (retry && !ret); |
| |
| if (!ret) |
| test_cp_disable(output, s); |
| |
| if (expect_failure) |
| igt_assert_f(!ret, |
| "CP Enabled. Though it is expected to fail\n"); |
| else |
| igt_assert_f(ret, "Content Protection not enabled\n"); |
| |
| } |
| |
| static bool igt_pipe_is_free(igt_display_t *display, enum pipe pipe) |
| { |
| int i; |
| |
| for (i = 0; i < display->n_outputs; i++) |
| if (display->outputs[i].pending_pipe == pipe) |
| return false; |
| |
| return true; |
| } |
| |
| static void test_cp_lic(igt_output_t *output) |
| { |
| bool ret; |
| |
| /* Wait for 4Secs (min 2 cycles of Link Integrity Check) */ |
| ret = wait_for_prop_value(output, CP_DESIRED, LIC_PERIOD_MSEC); |
| igt_assert_f(!ret, "Content Protection LIC Failed\n"); |
| } |
| |
| static bool write_srm_as_fw(const __u8 *srm, int len) |
| { |
| int fd, ret, total = 0; |
| |
| fd = open("/lib/firmware/display_hdcp_srm.bin", |
| O_WRONLY | O_CREAT, S_IRWXU); |
| do { |
| ret = write(fd, srm + total, len - total); |
| if (ret < 0) |
| ret = -errno; |
| if (ret == -EINTR || ret == -EAGAIN) |
| continue; |
| if (ret <= 0) |
| break; |
| total += ret; |
| } while (total != len); |
| close(fd); |
| |
| return total < len ? false : true; |
| } |
| |
| static void test_content_protection_on_output(igt_output_t *output, |
| enum igt_commit_style s, |
| int content_type) |
| { |
| igt_display_t *display = &data.display; |
| igt_plane_t *primary; |
| enum pipe pipe; |
| bool ret; |
| |
| for_each_pipe(display, pipe) { |
| if (!igt_pipe_connector_valid(pipe, output)) |
| continue; |
| |
| /* |
| * If previous subtest of connector failed, pipe |
| * attached to that connector is not released. |
| * Because of that we have to choose the non |
| * attached pipe for this subtest. |
| */ |
| if (!igt_pipe_is_free(display, pipe)) |
| continue; |
| |
| modeset_with_fb(pipe, output, s); |
| test_cp_enable_with_retry(output, s, 3, content_type, false, |
| false); |
| |
| if (data.cp_tests & CP_TYPE_CHANGE) { |
| /* Type 1 -> Type 0 */ |
| test_cp_enable_with_retry(output, s, 3, |
| HDCP_CONTENT_TYPE_0, false, |
| true); |
| /* Type 0 -> Type 1 */ |
| test_cp_enable_with_retry(output, s, 3, |
| content_type, false, |
| true); |
| } |
| |
| if (data.cp_tests & CP_MEI_RELOAD) { |
| igt_assert_f(!igt_kmod_unload("mei_hdcp", 0), |
| "mei_hdcp unload failed"); |
| |
| /* Expected to fail */ |
| test_cp_enable_with_retry(output, s, 3, |
| content_type, true, false); |
| |
| igt_assert_f(!igt_kmod_load("mei_hdcp", NULL), |
| "mei_hdcp load failed"); |
| |
| /* Expected to pass */ |
| test_cp_enable_with_retry(output, s, 3, |
| content_type, false, false); |
| } |
| |
| if (data.cp_tests & CP_LIC) |
| test_cp_lic(output); |
| |
| if (data.cp_tests & CP_DPMS) { |
| igt_pipe_set_prop_value(display, pipe, |
| IGT_CRTC_ACTIVE, 0); |
| igt_display_commit2(display, s); |
| |
| igt_pipe_set_prop_value(display, pipe, |
| IGT_CRTC_ACTIVE, 1); |
| igt_display_commit2(display, s); |
| |
| ret = wait_for_prop_value(output, CP_ENABLED, |
| KERNEL_AUTH_TIME_ALLOWED_MSEC); |
| if (!ret) |
| test_cp_enable_with_retry(output, s, 2, |
| content_type, false, |
| false); |
| } |
| |
| test_cp_disable(output, s); |
| primary = igt_output_get_plane_type(output, |
| DRM_PLANE_TYPE_PRIMARY); |
| igt_plane_set_fb(primary, NULL); |
| igt_output_set_pipe(output, PIPE_NONE); |
| |
| /* |
| * Testing a output with a pipe is enough for HDCP |
| * testing. No ROI in testing the connector with other |
| * pipes. So Break the loop on pipe. |
| */ |
| break; |
| } |
| } |
| |
| static void __debugfs_read(int fd, const char *param, char *buf, int len) |
| { |
| len = igt_debugfs_simple_read(fd, param, buf, len); |
| if (len < 0) |
| igt_assert_eq(len, -ENODEV); |
| } |
| |
| #define debugfs_read(fd, p, arr) __debugfs_read(fd, p, arr, sizeof(arr)) |
| |
| #define MAX_SINK_HDCP_CAP_BUF_LEN 5000 |
| |
| static bool sink_hdcp_capable(igt_output_t *output) |
| { |
| char buf[MAX_SINK_HDCP_CAP_BUF_LEN]; |
| int fd; |
| |
| fd = igt_debugfs_connector_dir(data.drm_fd, output->name, O_RDONLY); |
| if (fd < 0) |
| return false; |
| |
| debugfs_read(fd, "i915_hdcp_sink_capability", buf); |
| close(fd); |
| |
| igt_debug("Sink capability: %s\n", buf); |
| |
| return strstr(buf, "HDCP1.4"); |
| } |
| |
| static bool sink_hdcp2_capable(igt_output_t *output) |
| { |
| char buf[MAX_SINK_HDCP_CAP_BUF_LEN]; |
| int fd; |
| |
| fd = igt_debugfs_connector_dir(data.drm_fd, output->name, O_RDONLY); |
| if (fd < 0) |
| return false; |
| |
| debugfs_read(fd, "i915_hdcp_sink_capability", buf); |
| close(fd); |
| |
| igt_debug("Sink capability: %s\n", buf); |
| |
| return strstr(buf, "HDCP2.2"); |
| } |
| |
| static void |
| test_content_protection(enum igt_commit_style s, int content_type) |
| { |
| igt_display_t *display = &data.display; |
| igt_output_t *output; |
| int valid_tests = 0; |
| |
| if (data.cp_tests & CP_MEI_RELOAD) |
| igt_require_f(igt_kmod_is_loaded("mei_hdcp"), |
| "mei_hdcp module is not loaded\n"); |
| |
| for_each_connected_output(display, output) { |
| if (!output->props[IGT_CONNECTOR_CONTENT_PROTECTION]) |
| continue; |
| |
| if (!output->props[IGT_CONNECTOR_HDCP_CONTENT_TYPE] && |
| content_type) |
| continue; |
| |
| igt_info("CP Test execution on %s\n", output->name); |
| |
| if (content_type && !sink_hdcp2_capable(output)) { |
| igt_info("\tSkip %s (Sink has no HDCP2.2 support)\n", |
| output->name); |
| continue; |
| } else if (!sink_hdcp_capable(output)) { |
| igt_info("\tSkip %s (Sink has no HDCP support)\n", |
| output->name); |
| continue; |
| } |
| |
| test_content_protection_on_output(output, s, content_type); |
| valid_tests++; |
| } |
| |
| igt_require_f(valid_tests, "No connector found with HDCP capability\n"); |
| } |
| |
| igt_main |
| { |
| igt_fixture { |
| igt_skip_on_simulation(); |
| |
| data.drm_fd = drm_open_driver(DRIVER_ANY); |
| |
| igt_display_require(&data.display, data.drm_fd); |
| } |
| |
| igt_subtest("legacy") { |
| data.cp_tests = 0; |
| test_content_protection(COMMIT_LEGACY, HDCP_CONTENT_TYPE_0); |
| } |
| |
| igt_subtest("atomic") { |
| igt_require(data.display.is_atomic); |
| data.cp_tests = 0; |
| test_content_protection(COMMIT_ATOMIC, HDCP_CONTENT_TYPE_0); |
| } |
| |
| igt_subtest("atomic-dpms") { |
| igt_require(data.display.is_atomic); |
| data.cp_tests = CP_DPMS; |
| test_content_protection(COMMIT_ATOMIC, HDCP_CONTENT_TYPE_0); |
| } |
| |
| igt_subtest("LIC") { |
| igt_require(data.display.is_atomic); |
| data.cp_tests = CP_LIC; |
| test_content_protection(COMMIT_ATOMIC, HDCP_CONTENT_TYPE_0); |
| } |
| |
| igt_subtest("type1") { |
| igt_require(data.display.is_atomic); |
| test_content_protection(COMMIT_ATOMIC, HDCP_CONTENT_TYPE_1); |
| } |
| |
| igt_subtest("mei_interface") { |
| igt_require(data.display.is_atomic); |
| data.cp_tests = CP_MEI_RELOAD; |
| test_content_protection(COMMIT_ATOMIC, HDCP_CONTENT_TYPE_1); |
| } |
| |
| igt_subtest("content_type_change") { |
| igt_require(data.display.is_atomic); |
| data.cp_tests = CP_TYPE_CHANGE; |
| test_content_protection(COMMIT_ATOMIC, HDCP_CONTENT_TYPE_1); |
| } |
| |
| igt_subtest("uevent") { |
| igt_require(data.display.is_atomic); |
| data.cp_tests = CP_UEVENT; |
| test_content_protection(COMMIT_ATOMIC, HDCP_CONTENT_TYPE_0); |
| } |
| |
| /* |
| * Testing the revocation check through SRM needs a HDCP sink with |
| * programmable Ksvs or we need a uAPI from kernel to read the |
| * connected HDCP sink's Ksv. With that we would be able to add that |
| * Ksv into a SRM and send in for revocation check. Since we dont have |
| * either of these options, we test SRM writing from userspace and |
| * validation of the same at kernel. Something is better than nothing. |
| */ |
| igt_subtest("srm") { |
| bool ret; |
| |
| igt_require(data.display.is_atomic); |
| data.cp_tests = 0; |
| ret = write_srm_as_fw((const __u8 *)facsimile_srm, |
| sizeof(facsimile_srm)); |
| igt_assert_f(ret, "SRM update failed"); |
| test_content_protection(COMMIT_ATOMIC, HDCP_CONTENT_TYPE_0); |
| } |
| |
| igt_fixture |
| igt_display_fini(&data.display); |
| } |