| /* |
| * Copyright 2014 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: Slava Grigorev <slava.grigorev@amd.com> |
| */ |
| |
| #include <linux/gcd.h> |
| |
| #include <drm/drm_crtc.h> |
| #include "radeon.h" |
| #include "atom.h" |
| #include "radeon_audio.h" |
| |
| void r600_audio_enable(struct radeon_device *rdev, struct r600_audio_pin *pin, |
| u8 enable_mask); |
| void dce4_audio_enable(struct radeon_device *rdev, struct r600_audio_pin *pin, |
| u8 enable_mask); |
| void dce6_audio_enable(struct radeon_device *rdev, struct r600_audio_pin *pin, |
| u8 enable_mask); |
| u32 dce6_endpoint_rreg(struct radeon_device *rdev, u32 offset, u32 reg); |
| void dce6_endpoint_wreg(struct radeon_device *rdev, |
| u32 offset, u32 reg, u32 v); |
| void dce3_2_afmt_write_sad_regs(struct drm_encoder *encoder, |
| struct cea_sad *sads, int sad_count); |
| void evergreen_hdmi_write_sad_regs(struct drm_encoder *encoder, |
| struct cea_sad *sads, int sad_count); |
| void dce6_afmt_write_sad_regs(struct drm_encoder *encoder, |
| struct cea_sad *sads, int sad_count); |
| void dce3_2_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder, |
| u8 *sadb, int sad_count); |
| void dce3_2_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder, |
| u8 *sadb, int sad_count); |
| void dce4_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder, |
| u8 *sadb, int sad_count); |
| void dce4_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder, |
| u8 *sadb, int sad_count); |
| void dce6_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder, |
| u8 *sadb, int sad_count); |
| void dce6_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder, |
| u8 *sadb, int sad_count); |
| void dce4_afmt_write_latency_fields(struct drm_encoder *encoder, |
| struct drm_connector *connector, struct drm_display_mode *mode); |
| void dce6_afmt_write_latency_fields(struct drm_encoder *encoder, |
| struct drm_connector *connector, struct drm_display_mode *mode); |
| struct r600_audio_pin* r600_audio_get_pin(struct radeon_device *rdev); |
| struct r600_audio_pin* dce6_audio_get_pin(struct radeon_device *rdev); |
| void dce6_afmt_select_pin(struct drm_encoder *encoder); |
| void r600_hdmi_audio_set_dto(struct radeon_device *rdev, |
| struct radeon_crtc *crtc, unsigned int clock); |
| void dce3_2_audio_set_dto(struct radeon_device *rdev, |
| struct radeon_crtc *crtc, unsigned int clock); |
| void dce4_hdmi_audio_set_dto(struct radeon_device *rdev, |
| struct radeon_crtc *crtc, unsigned int clock); |
| void dce4_dp_audio_set_dto(struct radeon_device *rdev, |
| struct radeon_crtc *crtc, unsigned int clock); |
| void dce6_hdmi_audio_set_dto(struct radeon_device *rdev, |
| struct radeon_crtc *crtc, unsigned int clock); |
| void dce6_dp_audio_set_dto(struct radeon_device *rdev, |
| struct radeon_crtc *crtc, unsigned int clock); |
| void r600_set_avi_packet(struct radeon_device *rdev, u32 offset, |
| unsigned char *buffer, size_t size); |
| void evergreen_set_avi_packet(struct radeon_device *rdev, u32 offset, |
| unsigned char *buffer, size_t size); |
| void r600_hdmi_update_acr(struct drm_encoder *encoder, long offset, |
| const struct radeon_hdmi_acr *acr); |
| void dce3_2_hdmi_update_acr(struct drm_encoder *encoder, long offset, |
| const struct radeon_hdmi_acr *acr); |
| void evergreen_hdmi_update_acr(struct drm_encoder *encoder, long offset, |
| const struct radeon_hdmi_acr *acr); |
| void r600_set_vbi_packet(struct drm_encoder *encoder, u32 offset); |
| void dce4_set_vbi_packet(struct drm_encoder *encoder, u32 offset); |
| void dce4_hdmi_set_color_depth(struct drm_encoder *encoder, |
| u32 offset, int bpc); |
| void r600_set_audio_packet(struct drm_encoder *encoder, u32 offset); |
| void dce3_2_set_audio_packet(struct drm_encoder *encoder, u32 offset); |
| void dce4_set_audio_packet(struct drm_encoder *encoder, u32 offset); |
| void r600_set_mute(struct drm_encoder *encoder, u32 offset, bool mute); |
| void dce3_2_set_mute(struct drm_encoder *encoder, u32 offset, bool mute); |
| void dce4_set_mute(struct drm_encoder *encoder, u32 offset, bool mute); |
| static void radeon_audio_hdmi_mode_set(struct drm_encoder *encoder, |
| struct drm_display_mode *mode); |
| static void radeon_audio_dp_mode_set(struct drm_encoder *encoder, |
| struct drm_display_mode *mode); |
| void r600_hdmi_enable(struct drm_encoder *encoder, bool enable); |
| void evergreen_hdmi_enable(struct drm_encoder *encoder, bool enable); |
| void evergreen_dp_enable(struct drm_encoder *encoder, bool enable); |
| |
| static const u32 pin_offsets[7] = |
| { |
| (0x5e00 - 0x5e00), |
| (0x5e18 - 0x5e00), |
| (0x5e30 - 0x5e00), |
| (0x5e48 - 0x5e00), |
| (0x5e60 - 0x5e00), |
| (0x5e78 - 0x5e00), |
| (0x5e90 - 0x5e00), |
| }; |
| |
| static u32 radeon_audio_rreg(struct radeon_device *rdev, u32 offset, u32 reg) |
| { |
| return RREG32(reg); |
| } |
| |
| static void radeon_audio_wreg(struct radeon_device *rdev, u32 offset, |
| u32 reg, u32 v) |
| { |
| WREG32(reg, v); |
| } |
| |
| static struct radeon_audio_basic_funcs r600_funcs = { |
| .endpoint_rreg = radeon_audio_rreg, |
| .endpoint_wreg = radeon_audio_wreg, |
| .enable = r600_audio_enable, |
| }; |
| |
| static struct radeon_audio_basic_funcs dce32_funcs = { |
| .endpoint_rreg = radeon_audio_rreg, |
| .endpoint_wreg = radeon_audio_wreg, |
| .enable = r600_audio_enable, |
| }; |
| |
| static struct radeon_audio_basic_funcs dce4_funcs = { |
| .endpoint_rreg = radeon_audio_rreg, |
| .endpoint_wreg = radeon_audio_wreg, |
| .enable = dce4_audio_enable, |
| }; |
| |
| static struct radeon_audio_basic_funcs dce6_funcs = { |
| .endpoint_rreg = dce6_endpoint_rreg, |
| .endpoint_wreg = dce6_endpoint_wreg, |
| .enable = dce6_audio_enable, |
| }; |
| |
| static struct radeon_audio_funcs r600_hdmi_funcs = { |
| .get_pin = r600_audio_get_pin, |
| .set_dto = r600_hdmi_audio_set_dto, |
| .update_acr = r600_hdmi_update_acr, |
| .set_vbi_packet = r600_set_vbi_packet, |
| .set_avi_packet = r600_set_avi_packet, |
| .set_audio_packet = r600_set_audio_packet, |
| .set_mute = r600_set_mute, |
| .mode_set = radeon_audio_hdmi_mode_set, |
| .dpms = r600_hdmi_enable, |
| }; |
| |
| static struct radeon_audio_funcs dce32_hdmi_funcs = { |
| .get_pin = r600_audio_get_pin, |
| .write_sad_regs = dce3_2_afmt_write_sad_regs, |
| .write_speaker_allocation = dce3_2_afmt_hdmi_write_speaker_allocation, |
| .set_dto = dce3_2_audio_set_dto, |
| .update_acr = dce3_2_hdmi_update_acr, |
| .set_vbi_packet = r600_set_vbi_packet, |
| .set_avi_packet = r600_set_avi_packet, |
| .set_audio_packet = dce3_2_set_audio_packet, |
| .set_mute = dce3_2_set_mute, |
| .mode_set = radeon_audio_hdmi_mode_set, |
| .dpms = r600_hdmi_enable, |
| }; |
| |
| static struct radeon_audio_funcs dce32_dp_funcs = { |
| .get_pin = r600_audio_get_pin, |
| .write_sad_regs = dce3_2_afmt_write_sad_regs, |
| .write_speaker_allocation = dce3_2_afmt_dp_write_speaker_allocation, |
| .set_dto = dce3_2_audio_set_dto, |
| .set_avi_packet = r600_set_avi_packet, |
| .set_audio_packet = dce3_2_set_audio_packet, |
| }; |
| |
| static struct radeon_audio_funcs dce4_hdmi_funcs = { |
| .get_pin = r600_audio_get_pin, |
| .write_sad_regs = evergreen_hdmi_write_sad_regs, |
| .write_speaker_allocation = dce4_afmt_hdmi_write_speaker_allocation, |
| .write_latency_fields = dce4_afmt_write_latency_fields, |
| .set_dto = dce4_hdmi_audio_set_dto, |
| .update_acr = evergreen_hdmi_update_acr, |
| .set_vbi_packet = dce4_set_vbi_packet, |
| .set_color_depth = dce4_hdmi_set_color_depth, |
| .set_avi_packet = evergreen_set_avi_packet, |
| .set_audio_packet = dce4_set_audio_packet, |
| .set_mute = dce4_set_mute, |
| .mode_set = radeon_audio_hdmi_mode_set, |
| .dpms = evergreen_hdmi_enable, |
| }; |
| |
| static struct radeon_audio_funcs dce4_dp_funcs = { |
| .get_pin = r600_audio_get_pin, |
| .write_sad_regs = evergreen_hdmi_write_sad_regs, |
| .write_speaker_allocation = dce4_afmt_dp_write_speaker_allocation, |
| .write_latency_fields = dce4_afmt_write_latency_fields, |
| .set_dto = dce4_dp_audio_set_dto, |
| .set_avi_packet = evergreen_set_avi_packet, |
| .set_audio_packet = dce4_set_audio_packet, |
| .mode_set = radeon_audio_dp_mode_set, |
| .dpms = evergreen_dp_enable, |
| }; |
| |
| static struct radeon_audio_funcs dce6_hdmi_funcs = { |
| .select_pin = dce6_afmt_select_pin, |
| .get_pin = dce6_audio_get_pin, |
| .write_sad_regs = dce6_afmt_write_sad_regs, |
| .write_speaker_allocation = dce6_afmt_hdmi_write_speaker_allocation, |
| .write_latency_fields = dce6_afmt_write_latency_fields, |
| .set_dto = dce6_hdmi_audio_set_dto, |
| .update_acr = evergreen_hdmi_update_acr, |
| .set_vbi_packet = dce4_set_vbi_packet, |
| .set_color_depth = dce4_hdmi_set_color_depth, |
| .set_avi_packet = evergreen_set_avi_packet, |
| .set_audio_packet = dce4_set_audio_packet, |
| .set_mute = dce4_set_mute, |
| .mode_set = radeon_audio_hdmi_mode_set, |
| .dpms = evergreen_hdmi_enable, |
| }; |
| |
| static struct radeon_audio_funcs dce6_dp_funcs = { |
| .select_pin = dce6_afmt_select_pin, |
| .get_pin = dce6_audio_get_pin, |
| .write_sad_regs = dce6_afmt_write_sad_regs, |
| .write_speaker_allocation = dce6_afmt_dp_write_speaker_allocation, |
| .write_latency_fields = dce6_afmt_write_latency_fields, |
| .set_dto = dce6_dp_audio_set_dto, |
| .set_avi_packet = evergreen_set_avi_packet, |
| .set_audio_packet = dce4_set_audio_packet, |
| .mode_set = radeon_audio_dp_mode_set, |
| .dpms = evergreen_dp_enable, |
| }; |
| |
| static void radeon_audio_enable(struct radeon_device *rdev, |
| struct r600_audio_pin *pin, u8 enable_mask) |
| { |
| struct drm_encoder *encoder; |
| struct radeon_encoder *radeon_encoder; |
| struct radeon_encoder_atom_dig *dig; |
| int pin_count = 0; |
| |
| if (!pin) |
| return; |
| |
| if (rdev->mode_info.mode_config_initialized) { |
| list_for_each_entry(encoder, &rdev->ddev->mode_config.encoder_list, head) { |
| if (radeon_encoder_is_digital(encoder)) { |
| radeon_encoder = to_radeon_encoder(encoder); |
| dig = radeon_encoder->enc_priv; |
| if (dig->pin == pin) |
| pin_count++; |
| } |
| } |
| |
| if ((pin_count > 1) && (enable_mask == 0)) |
| return; |
| } |
| |
| if (rdev->audio.funcs->enable) |
| rdev->audio.funcs->enable(rdev, pin, enable_mask); |
| } |
| |
| static void radeon_audio_interface_init(struct radeon_device *rdev) |
| { |
| if (ASIC_IS_DCE6(rdev)) { |
| rdev->audio.funcs = &dce6_funcs; |
| rdev->audio.hdmi_funcs = &dce6_hdmi_funcs; |
| rdev->audio.dp_funcs = &dce6_dp_funcs; |
| } else if (ASIC_IS_DCE4(rdev)) { |
| rdev->audio.funcs = &dce4_funcs; |
| rdev->audio.hdmi_funcs = &dce4_hdmi_funcs; |
| rdev->audio.dp_funcs = &dce4_dp_funcs; |
| } else if (ASIC_IS_DCE32(rdev)) { |
| rdev->audio.funcs = &dce32_funcs; |
| rdev->audio.hdmi_funcs = &dce32_hdmi_funcs; |
| rdev->audio.dp_funcs = &dce32_dp_funcs; |
| } else { |
| rdev->audio.funcs = &r600_funcs; |
| rdev->audio.hdmi_funcs = &r600_hdmi_funcs; |
| rdev->audio.dp_funcs = 0; |
| } |
| } |
| |
| static int radeon_audio_chipset_supported(struct radeon_device *rdev) |
| { |
| return ASIC_IS_DCE2(rdev) && !ASIC_IS_NODCE(rdev); |
| } |
| |
| int radeon_audio_init(struct radeon_device *rdev) |
| { |
| int i; |
| |
| if (!radeon_audio || !radeon_audio_chipset_supported(rdev)) |
| return 0; |
| |
| rdev->audio.enabled = true; |
| |
| if (ASIC_IS_DCE83(rdev)) /* KB: 2 streams, 3 endpoints */ |
| rdev->audio.num_pins = 3; |
| else if (ASIC_IS_DCE81(rdev)) /* KV: 4 streams, 7 endpoints */ |
| rdev->audio.num_pins = 7; |
| else if (ASIC_IS_DCE8(rdev)) /* BN/HW: 6 streams, 7 endpoints */ |
| rdev->audio.num_pins = 7; |
| else if (ASIC_IS_DCE64(rdev)) /* OL: 2 streams, 2 endpoints */ |
| rdev->audio.num_pins = 2; |
| else if (ASIC_IS_DCE61(rdev)) /* TN: 4 streams, 6 endpoints */ |
| rdev->audio.num_pins = 6; |
| else if (ASIC_IS_DCE6(rdev)) /* SI: 6 streams, 6 endpoints */ |
| rdev->audio.num_pins = 6; |
| else |
| rdev->audio.num_pins = 1; |
| |
| for (i = 0; i < rdev->audio.num_pins; i++) { |
| rdev->audio.pin[i].channels = -1; |
| rdev->audio.pin[i].rate = -1; |
| rdev->audio.pin[i].bits_per_sample = -1; |
| rdev->audio.pin[i].status_bits = 0; |
| rdev->audio.pin[i].category_code = 0; |
| rdev->audio.pin[i].connected = false; |
| rdev->audio.pin[i].offset = pin_offsets[i]; |
| rdev->audio.pin[i].id = i; |
| } |
| |
| radeon_audio_interface_init(rdev); |
| |
| /* disable audio. it will be set up later */ |
| for (i = 0; i < rdev->audio.num_pins; i++) |
| radeon_audio_enable(rdev, &rdev->audio.pin[i], 0); |
| |
| return 0; |
| } |
| |
| u32 radeon_audio_endpoint_rreg(struct radeon_device *rdev, u32 offset, u32 reg) |
| { |
| if (rdev->audio.funcs->endpoint_rreg) |
| return rdev->audio.funcs->endpoint_rreg(rdev, offset, reg); |
| |
| return 0; |
| } |
| |
| void radeon_audio_endpoint_wreg(struct radeon_device *rdev, u32 offset, |
| u32 reg, u32 v) |
| { |
| if (rdev->audio.funcs->endpoint_wreg) |
| rdev->audio.funcs->endpoint_wreg(rdev, offset, reg, v); |
| } |
| |
| static void radeon_audio_write_sad_regs(struct drm_encoder *encoder) |
| { |
| struct drm_connector *connector = radeon_get_connector_for_encoder(encoder); |
| struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); |
| struct cea_sad *sads; |
| int sad_count; |
| |
| if (!connector) |
| return; |
| |
| sad_count = drm_edid_to_sad(radeon_connector_edid(connector), &sads); |
| if (sad_count < 0) |
| DRM_ERROR("Couldn't read SADs: %d\n", sad_count); |
| if (sad_count <= 0) |
| return; |
| BUG_ON(!sads); |
| |
| if (radeon_encoder->audio && radeon_encoder->audio->write_sad_regs) |
| radeon_encoder->audio->write_sad_regs(encoder, sads, sad_count); |
| |
| kfree(sads); |
| } |
| |
| static void radeon_audio_write_speaker_allocation(struct drm_encoder *encoder) |
| { |
| struct drm_connector *connector = radeon_get_connector_for_encoder(encoder); |
| struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); |
| u8 *sadb = NULL; |
| int sad_count; |
| |
| if (!connector) |
| return; |
| |
| sad_count = drm_edid_to_speaker_allocation(radeon_connector_edid(connector), |
| &sadb); |
| if (sad_count < 0) { |
| DRM_DEBUG("Couldn't read Speaker Allocation Data Block: %d\n", |
| sad_count); |
| sad_count = 0; |
| } |
| |
| if (radeon_encoder->audio && radeon_encoder->audio->write_speaker_allocation) |
| radeon_encoder->audio->write_speaker_allocation(encoder, sadb, sad_count); |
| |
| kfree(sadb); |
| } |
| |
| static void radeon_audio_write_latency_fields(struct drm_encoder *encoder, |
| struct drm_display_mode *mode) |
| { |
| struct drm_connector *connector = radeon_get_connector_for_encoder(encoder); |
| struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); |
| |
| if (!connector) |
| return; |
| |
| if (radeon_encoder->audio && radeon_encoder->audio->write_latency_fields) |
| radeon_encoder->audio->write_latency_fields(encoder, connector, mode); |
| } |
| |
| struct r600_audio_pin* radeon_audio_get_pin(struct drm_encoder *encoder) |
| { |
| struct radeon_device *rdev = encoder->dev->dev_private; |
| struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); |
| |
| if (radeon_encoder->audio && radeon_encoder->audio->get_pin) |
| return radeon_encoder->audio->get_pin(rdev); |
| |
| return NULL; |
| } |
| |
| static void radeon_audio_select_pin(struct drm_encoder *encoder) |
| { |
| struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); |
| |
| if (radeon_encoder->audio && radeon_encoder->audio->select_pin) |
| radeon_encoder->audio->select_pin(encoder); |
| } |
| |
| void radeon_audio_detect(struct drm_connector *connector, |
| struct drm_encoder *encoder, |
| enum drm_connector_status status) |
| { |
| struct drm_device *dev = connector->dev; |
| struct radeon_device *rdev = dev->dev_private; |
| struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); |
| struct radeon_encoder_atom_dig *dig; |
| |
| if (!radeon_audio_chipset_supported(rdev)) |
| return; |
| |
| if (!radeon_encoder_is_digital(encoder)) |
| return; |
| |
| dig = radeon_encoder->enc_priv; |
| |
| if (status == connector_status_connected) { |
| if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) { |
| struct radeon_connector *radeon_connector = to_radeon_connector(connector); |
| |
| if (radeon_dp_getsinktype(radeon_connector) == |
| CONNECTOR_OBJECT_ID_DISPLAYPORT) |
| radeon_encoder->audio = rdev->audio.dp_funcs; |
| else |
| radeon_encoder->audio = rdev->audio.hdmi_funcs; |
| } else { |
| radeon_encoder->audio = rdev->audio.hdmi_funcs; |
| } |
| |
| if (drm_detect_monitor_audio(radeon_connector_edid(connector))) { |
| if (!dig->pin) |
| dig->pin = radeon_audio_get_pin(encoder); |
| radeon_audio_enable(rdev, dig->pin, 0xf); |
| } else { |
| radeon_audio_enable(rdev, dig->pin, 0); |
| dig->pin = NULL; |
| } |
| } else { |
| radeon_audio_enable(rdev, dig->pin, 0); |
| dig->pin = NULL; |
| } |
| } |
| |
| void radeon_audio_fini(struct radeon_device *rdev) |
| { |
| int i; |
| |
| if (!rdev->audio.enabled) |
| return; |
| |
| for (i = 0; i < rdev->audio.num_pins; i++) |
| radeon_audio_enable(rdev, &rdev->audio.pin[i], 0); |
| |
| rdev->audio.enabled = false; |
| } |
| |
| static void radeon_audio_set_dto(struct drm_encoder *encoder, unsigned int clock) |
| { |
| struct radeon_device *rdev = encoder->dev->dev_private; |
| struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); |
| struct radeon_crtc *crtc = to_radeon_crtc(encoder->crtc); |
| |
| if (radeon_encoder->audio && radeon_encoder->audio->set_dto) |
| radeon_encoder->audio->set_dto(rdev, crtc, clock); |
| } |
| |
| static int radeon_audio_set_avi_packet(struct drm_encoder *encoder, |
| struct drm_display_mode *mode) |
| { |
| struct radeon_device *rdev = encoder->dev->dev_private; |
| struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); |
| struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; |
| struct drm_connector *connector = radeon_get_connector_for_encoder(encoder); |
| u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AVI_INFOFRAME_SIZE]; |
| struct hdmi_avi_infoframe frame; |
| int err; |
| |
| if (!connector) |
| return -EINVAL; |
| |
| err = drm_hdmi_avi_infoframe_from_display_mode(&frame, connector, mode); |
| if (err < 0) { |
| DRM_ERROR("failed to setup AVI infoframe: %d\n", err); |
| return err; |
| } |
| |
| if (radeon_encoder->output_csc != RADEON_OUTPUT_CSC_BYPASS) { |
| drm_hdmi_avi_infoframe_quant_range(&frame, connector, mode, |
| radeon_encoder->output_csc == RADEON_OUTPUT_CSC_TVRGB ? |
| HDMI_QUANTIZATION_RANGE_LIMITED : |
| HDMI_QUANTIZATION_RANGE_FULL); |
| } |
| |
| err = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer)); |
| if (err < 0) { |
| DRM_ERROR("failed to pack AVI infoframe: %d\n", err); |
| return err; |
| } |
| |
| if (dig && dig->afmt && radeon_encoder->audio && |
| radeon_encoder->audio->set_avi_packet) |
| radeon_encoder->audio->set_avi_packet(rdev, dig->afmt->offset, |
| buffer, sizeof(buffer)); |
| |
| return 0; |
| } |
| |
| /* |
| * calculate CTS and N values if they are not found in the table |
| */ |
| static void radeon_audio_calc_cts(unsigned int clock, int *CTS, int *N, int freq) |
| { |
| int n, cts; |
| unsigned long div, mul; |
| |
| /* Safe, but overly large values */ |
| n = 128 * freq; |
| cts = clock * 1000; |
| |
| /* Smallest valid fraction */ |
| div = gcd(n, cts); |
| |
| n /= div; |
| cts /= div; |
| |
| /* |
| * The optimal N is 128*freq/1000. Calculate the closest larger |
| * value that doesn't truncate any bits. |
| */ |
| mul = ((128*freq/1000) + (n-1))/n; |
| |
| n *= mul; |
| cts *= mul; |
| |
| /* Check that we are in spec (not always possible) */ |
| if (n < (128*freq/1500)) |
| pr_warn("Calculated ACR N value is too small. You may experience audio problems.\n"); |
| if (n > (128*freq/300)) |
| pr_warn("Calculated ACR N value is too large. You may experience audio problems.\n"); |
| |
| *N = n; |
| *CTS = cts; |
| |
| DRM_DEBUG("Calculated ACR timing N=%d CTS=%d for frequency %d\n", |
| *N, *CTS, freq); |
| } |
| |
| static const struct radeon_hdmi_acr* radeon_audio_acr(unsigned int clock) |
| { |
| static struct radeon_hdmi_acr res; |
| u8 i; |
| |
| static const struct radeon_hdmi_acr hdmi_predefined_acr[] = { |
| /* 32kHz 44.1kHz 48kHz */ |
| /* Clock N CTS N CTS N CTS */ |
| { 25175, 4096, 25175, 28224, 125875, 6144, 25175 }, /* 25,20/1.001 MHz */ |
| { 25200, 4096, 25200, 6272, 28000, 6144, 25200 }, /* 25.20 MHz */ |
| { 27000, 4096, 27000, 6272, 30000, 6144, 27000 }, /* 27.00 MHz */ |
| { 27027, 4096, 27027, 6272, 30030, 6144, 27027 }, /* 27.00*1.001 MHz */ |
| { 54000, 4096, 54000, 6272, 60000, 6144, 54000 }, /* 54.00 MHz */ |
| { 54054, 4096, 54054, 6272, 60060, 6144, 54054 }, /* 54.00*1.001 MHz */ |
| { 74176, 4096, 74176, 5733, 75335, 6144, 74176 }, /* 74.25/1.001 MHz */ |
| { 74250, 4096, 74250, 6272, 82500, 6144, 74250 }, /* 74.25 MHz */ |
| { 148352, 4096, 148352, 5733, 150670, 6144, 148352 }, /* 148.50/1.001 MHz */ |
| { 148500, 4096, 148500, 6272, 165000, 6144, 148500 }, /* 148.50 MHz */ |
| }; |
| |
| /* Precalculated values for common clocks */ |
| for (i = 0; i < ARRAY_SIZE(hdmi_predefined_acr); i++) |
| if (hdmi_predefined_acr[i].clock == clock) |
| return &hdmi_predefined_acr[i]; |
| |
| /* And odd clocks get manually calculated */ |
| radeon_audio_calc_cts(clock, &res.cts_32khz, &res.n_32khz, 32000); |
| radeon_audio_calc_cts(clock, &res.cts_44_1khz, &res.n_44_1khz, 44100); |
| radeon_audio_calc_cts(clock, &res.cts_48khz, &res.n_48khz, 48000); |
| |
| return &res; |
| } |
| |
| /* |
| * update the N and CTS parameters for a given pixel clock rate |
| */ |
| static void radeon_audio_update_acr(struct drm_encoder *encoder, unsigned int clock) |
| { |
| const struct radeon_hdmi_acr *acr = radeon_audio_acr(clock); |
| struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); |
| struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; |
| |
| if (!dig || !dig->afmt) |
| return; |
| |
| if (radeon_encoder->audio && radeon_encoder->audio->update_acr) |
| radeon_encoder->audio->update_acr(encoder, dig->afmt->offset, acr); |
| } |
| |
| static void radeon_audio_set_vbi_packet(struct drm_encoder *encoder) |
| { |
| struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); |
| struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; |
| |
| if (!dig || !dig->afmt) |
| return; |
| |
| if (radeon_encoder->audio && radeon_encoder->audio->set_vbi_packet) |
| radeon_encoder->audio->set_vbi_packet(encoder, dig->afmt->offset); |
| } |
| |
| static void radeon_hdmi_set_color_depth(struct drm_encoder *encoder) |
| { |
| int bpc = 8; |
| struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); |
| struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; |
| |
| if (!dig || !dig->afmt) |
| return; |
| |
| if (encoder->crtc) { |
| struct radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc); |
| bpc = radeon_crtc->bpc; |
| } |
| |
| if (radeon_encoder->audio && radeon_encoder->audio->set_color_depth) |
| radeon_encoder->audio->set_color_depth(encoder, dig->afmt->offset, bpc); |
| } |
| |
| static void radeon_audio_set_audio_packet(struct drm_encoder *encoder) |
| { |
| struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); |
| struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; |
| |
| if (!dig || !dig->afmt) |
| return; |
| |
| if (radeon_encoder->audio && radeon_encoder->audio->set_audio_packet) |
| radeon_encoder->audio->set_audio_packet(encoder, dig->afmt->offset); |
| } |
| |
| static void radeon_audio_set_mute(struct drm_encoder *encoder, bool mute) |
| { |
| struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); |
| struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; |
| |
| if (!dig || !dig->afmt) |
| return; |
| |
| if (radeon_encoder->audio && radeon_encoder->audio->set_mute) |
| radeon_encoder->audio->set_mute(encoder, dig->afmt->offset, mute); |
| } |
| |
| /* |
| * update the info frames with the data from the current display mode |
| */ |
| static void radeon_audio_hdmi_mode_set(struct drm_encoder *encoder, |
| struct drm_display_mode *mode) |
| { |
| struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); |
| struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; |
| struct drm_connector *connector = radeon_get_connector_for_encoder(encoder); |
| |
| if (!dig || !dig->afmt) |
| return; |
| |
| if (!connector) |
| return; |
| |
| if (drm_detect_monitor_audio(radeon_connector_edid(connector))) { |
| radeon_audio_set_mute(encoder, true); |
| |
| radeon_audio_write_speaker_allocation(encoder); |
| radeon_audio_write_sad_regs(encoder); |
| radeon_audio_write_latency_fields(encoder, mode); |
| radeon_audio_set_dto(encoder, mode->clock); |
| radeon_audio_set_vbi_packet(encoder); |
| radeon_hdmi_set_color_depth(encoder); |
| radeon_audio_update_acr(encoder, mode->clock); |
| radeon_audio_set_audio_packet(encoder); |
| radeon_audio_select_pin(encoder); |
| |
| if (radeon_audio_set_avi_packet(encoder, mode) < 0) |
| return; |
| |
| radeon_audio_set_mute(encoder, false); |
| } else { |
| radeon_hdmi_set_color_depth(encoder); |
| |
| if (radeon_audio_set_avi_packet(encoder, mode) < 0) |
| return; |
| } |
| } |
| |
| static void radeon_audio_dp_mode_set(struct drm_encoder *encoder, |
| struct drm_display_mode *mode) |
| { |
| struct drm_device *dev = encoder->dev; |
| struct radeon_device *rdev = dev->dev_private; |
| struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); |
| struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; |
| struct drm_connector *connector = radeon_get_connector_for_encoder(encoder); |
| |
| if (!dig || !dig->afmt) |
| return; |
| |
| if (!connector) |
| return; |
| |
| if (drm_detect_monitor_audio(radeon_connector_edid(connector))) { |
| radeon_audio_write_speaker_allocation(encoder); |
| radeon_audio_write_sad_regs(encoder); |
| radeon_audio_write_latency_fields(encoder, mode); |
| radeon_audio_set_dto(encoder, rdev->clock.vco_freq * 10); |
| radeon_audio_set_audio_packet(encoder); |
| radeon_audio_select_pin(encoder); |
| |
| if (radeon_audio_set_avi_packet(encoder, mode) < 0) |
| return; |
| } |
| } |
| |
| void radeon_audio_mode_set(struct drm_encoder *encoder, |
| struct drm_display_mode *mode) |
| { |
| struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); |
| |
| if (radeon_encoder->audio && radeon_encoder->audio->mode_set) |
| radeon_encoder->audio->mode_set(encoder, mode); |
| } |
| |
| void radeon_audio_dpms(struct drm_encoder *encoder, int mode) |
| { |
| struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); |
| |
| if (radeon_encoder->audio && radeon_encoder->audio->dpms) |
| radeon_encoder->audio->dpms(encoder, mode == DRM_MODE_DPMS_ON); |
| } |
| |
| unsigned int radeon_audio_decode_dfs_div(unsigned int div) |
| { |
| if (div >= 8 && div < 64) |
| return (div - 8) * 25 + 200; |
| else if (div >= 64 && div < 96) |
| return (div - 64) * 50 + 1600; |
| else if (div >= 96 && div < 128) |
| return (div - 96) * 100 + 3200; |
| else |
| return 0; |
| } |