/* * 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 = NULL; } } 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; }