diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/Makefile b/drivers/gpu/drm/amd/display/amdgpu_dm/Makefile index 94911871eb9b..9a3b7bf8ab0b 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/Makefile +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/Makefile @@ -31,6 +31,10 @@ ifneq ($(CONFIG_DRM_AMD_DC),) AMDGPUDM += amdgpu_dm_services.o amdgpu_dm_helpers.o amdgpu_dm_pp_smu.o endif +ifdef CONFIG_DRM_AMD_DC_HDCP +AMDGPUDM += amdgpu_dm_hdcp.o +endif + ifneq ($(CONFIG_DEBUG_FS),) AMDGPUDM += amdgpu_dm_crc.o amdgpu_dm_debugfs.o endif diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c new file mode 100644 index 000000000000..004b6e8e9ed5 --- /dev/null +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c @@ -0,0 +1,241 @@ +/* + * Copyright 2019 Advanced Micro Devices, Inc. + * + * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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. + * + * Authors: AMD + * + */ + +#include "amdgpu_dm_hdcp.h" +#include "amdgpu.h" +#include "amdgpu_dm.h" + +static void process_output(struct hdcp_workqueue *hdcp_work) +{ + struct mod_hdcp_output output = hdcp_work->output; + + if (output.callback_stop) + cancel_delayed_work(&hdcp_work->callback_dwork); + + if (output.callback_needed) + schedule_delayed_work(&hdcp_work->callback_dwork, + msecs_to_jiffies(output.callback_delay)); + + if (output.watchdog_timer_stop) + cancel_delayed_work(&hdcp_work->watchdog_timer_dwork); + + if (output.watchdog_timer_needed) + schedule_delayed_work(&hdcp_work->watchdog_timer_dwork, + msecs_to_jiffies(output.watchdog_timer_delay)); + +} + +void hdcp_add_display(struct hdcp_workqueue *hdcp_work, unsigned int link_index) +{ + struct hdcp_workqueue *hdcp_w = &hdcp_work[link_index]; + struct mod_hdcp_display *display = &hdcp_work[link_index].display; + struct mod_hdcp_link *link = &hdcp_work[link_index].link; + + mutex_lock(&hdcp_w->mutex); + + mod_hdcp_add_display(&hdcp_w->hdcp, link, display, &hdcp_w->output); + + process_output(hdcp_w); + + mutex_unlock(&hdcp_w->mutex); + +} + +void hdcp_remove_display(struct hdcp_workqueue *hdcp_work, unsigned int link_index, unsigned int display_index) +{ + struct hdcp_workqueue *hdcp_w = &hdcp_work[link_index]; + + mutex_lock(&hdcp_w->mutex); + + mod_hdcp_remove_display(&hdcp_w->hdcp, display_index, &hdcp_w->output); + + process_output(hdcp_w); + + mutex_unlock(&hdcp_w->mutex); + +} + +void hdcp_reset_display(struct hdcp_workqueue *hdcp_work, unsigned int link_index) +{ + struct hdcp_workqueue *hdcp_w = &hdcp_work[link_index]; + + mutex_lock(&hdcp_w->mutex); + + mod_hdcp_reset_connection(&hdcp_w->hdcp, &hdcp_w->output); + + process_output(hdcp_w); + + mutex_unlock(&hdcp_w->mutex); +} + +void hdcp_handle_cpirq(struct hdcp_workqueue *hdcp_work, unsigned int link_index) +{ + struct hdcp_workqueue *hdcp_w = &hdcp_work[link_index]; + + schedule_work(&hdcp_w->cpirq_work); +} + + + + +static void event_callback(struct work_struct *work) +{ + struct hdcp_workqueue *hdcp_work; + + hdcp_work = container_of(to_delayed_work(work), struct hdcp_workqueue, + callback_dwork); + + mutex_lock(&hdcp_work->mutex); + + cancel_delayed_work(&hdcp_work->watchdog_timer_dwork); + + mod_hdcp_process_event(&hdcp_work->hdcp, MOD_HDCP_EVENT_CALLBACK, + &hdcp_work->output); + + process_output(hdcp_work); + + mutex_unlock(&hdcp_work->mutex); + + +} + + +static void event_watchdog_timer(struct work_struct *work) +{ + struct hdcp_workqueue *hdcp_work; + + hdcp_work = container_of(to_delayed_work(work), + struct hdcp_workqueue, + watchdog_timer_dwork); + + mutex_lock(&hdcp_work->mutex); + + mod_hdcp_process_event(&hdcp_work->hdcp, + MOD_HDCP_EVENT_WATCHDOG_TIMEOUT, + &hdcp_work->output); + + process_output(hdcp_work); + + mutex_unlock(&hdcp_work->mutex); + +} + +static void event_cpirq(struct work_struct *work) +{ + struct hdcp_workqueue *hdcp_work; + + hdcp_work = container_of(work, struct hdcp_workqueue, cpirq_work); + + mutex_lock(&hdcp_work->mutex); + + mod_hdcp_process_event(&hdcp_work->hdcp, MOD_HDCP_EVENT_CPIRQ, &hdcp_work->output); + + process_output(hdcp_work); + + mutex_unlock(&hdcp_work->mutex); + +} + + +void hdcp_destroy(struct hdcp_workqueue *hdcp_work) +{ + int i = 0; + + for (i = 0; i < hdcp_work->max_link; i++) { + cancel_delayed_work_sync(&hdcp_work[i].callback_dwork); + cancel_delayed_work_sync(&hdcp_work[i].watchdog_timer_dwork); + } + + kfree(hdcp_work); + +} + +static void update_config(void *handle, struct cp_psp_stream_config *config) +{ + struct hdcp_workqueue *hdcp_work = handle; + struct amdgpu_dm_connector *aconnector = config->dm_stream_ctx; + int link_index = aconnector->dc_link->link_index; + struct mod_hdcp_display *display = &hdcp_work[link_index].display; + struct mod_hdcp_link *link = &hdcp_work[link_index].link; + + memset(display, 0, sizeof(*display)); + memset(link, 0, sizeof(*link)); + + display->index = aconnector->base.index; + display->state = MOD_HDCP_DISPLAY_ACTIVE; + + if (aconnector->dc_sink != NULL) + link->mode = mod_hdcp_signal_type_to_operation_mode(aconnector->dc_sink->sink_signal); + + display->controller = CONTROLLER_ID_D0 + config->otg_inst; + display->dig_fe = config->stream_enc_inst; + link->dig_be = config->link_enc_inst; + link->ddc_line = aconnector->dc_link->ddc_hw_inst + 1; + link->dp.rev = aconnector->dc_link->dpcd_caps.dpcd_rev.raw; + link->adjust.hdcp2.disable = 1; + +} + +struct hdcp_workqueue *hdcp_create_workqueue(void *psp_context, struct cp_psp *cp_psp, struct dc *dc) +{ + + int max_caps = dc->caps.max_links; + struct hdcp_workqueue *hdcp_work = kzalloc(max_caps*sizeof(*hdcp_work), GFP_KERNEL); + int i = 0; + + if (hdcp_work == NULL) + goto fail_alloc_context; + + hdcp_work->max_link = max_caps; + + for (i = 0; i < max_caps; i++) { + + mutex_init(&hdcp_work[i].mutex); + + INIT_WORK(&hdcp_work[i].cpirq_work, event_cpirq); + INIT_DELAYED_WORK(&hdcp_work[i].callback_dwork, event_callback); + INIT_DELAYED_WORK(&hdcp_work[i].watchdog_timer_dwork, event_watchdog_timer); + + hdcp_work[i].hdcp.config.psp.handle = psp_context; + hdcp_work[i].hdcp.config.ddc.handle = dc_get_link_at_index(dc, i); + + } + + cp_psp->funcs.update_stream_config = update_config; + cp_psp->handle = hdcp_work; + + return hdcp_work; + +fail_alloc_context: + kfree(hdcp_work); + + return NULL; + + + +} + + + diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.h new file mode 100644 index 000000000000..cb6c6fbd74f6 --- /dev/null +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.h @@ -0,0 +1,61 @@ +/* + * Copyright 2019 Advanced Micro Devices, Inc. + * + * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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. + * + * Authors: AMD + * + */ + +#ifndef AMDGPU_DM_AMDGPU_DM_HDCP_H_ +#define AMDGPU_DM_AMDGPU_DM_HDCP_H_ + +#include "mod_hdcp.h" +#include "hdcp.h" +#include "dc.h" +#include "dm_cp_psp.h" + +struct mod_hdcp; +struct mod_hdcp_link; +struct mod_hdcp_display; +struct cp_psp; + +struct hdcp_workqueue { + struct work_struct cpirq_work; + struct delayed_work callback_dwork; + struct delayed_work watchdog_timer_dwork; + struct mutex mutex; + + struct mod_hdcp hdcp; + struct mod_hdcp_output output; + struct mod_hdcp_display display; + struct mod_hdcp_link link; + + uint8_t max_link; +}; + +void hdcp_add_display(struct hdcp_workqueue *hdcp_work, unsigned int link_index); +void hdcp_remove_display(struct hdcp_workqueue *work, unsigned int link_index, unsigned int display_index); +void hdcp_reset_display(struct hdcp_workqueue *work, unsigned int link_index); +void hdcp_handle_cpirq(struct hdcp_workqueue *work, unsigned int link_index); +void hdcp_destroy(struct hdcp_workqueue *work); + +struct hdcp_workqueue *hdcp_create_workqueue(void *psp_context, struct cp_psp *cp_psp, struct dc *dc); + +#endif /* AMDGPU_DM_AMDGPU_DM_HDCP_H_ */