diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/evergreen_hdmi.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreen_hdmi.c | 299 |
1 files changed, 299 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen_hdmi.c b/drivers/gpu/drm/radeon/evergreen_hdmi.c new file mode 100644 index 0000000..bb9ea36 --- /dev/null +++ b/drivers/gpu/drm/radeon/evergreen_hdmi.c @@ -0,0 +1,299 @@ +/* + * Copyright 2008 Advanced Micro Devices, Inc. + * Copyright 2008 Red Hat Inc. + * Copyright 2009 Christian König. + * + * 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: Christian König + * Rafał Miłecki + */ +#include <linux/hdmi.h> +#include <drm/drmP.h> +#include <drm/radeon_drm.h> +#include "radeon.h" +#include "radeon_asic.h" +#include "evergreend.h" +#include "atom.h" + +/* + * update the N and CTS parameters for a given pixel clock rate + */ +static void evergreen_hdmi_update_ACR(struct drm_encoder *encoder, uint32_t clock) +{ + struct drm_device *dev = encoder->dev; + struct radeon_device *rdev = dev->dev_private; + struct radeon_hdmi_acr acr = r600_hdmi_acr(clock); + struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); + struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; + uint32_t offset = dig->afmt->offset; + + WREG32(HDMI_ACR_32_0 + offset, HDMI_ACR_CTS_32(acr.cts_32khz)); + WREG32(HDMI_ACR_32_1 + offset, acr.n_32khz); + + WREG32(HDMI_ACR_44_0 + offset, HDMI_ACR_CTS_44(acr.cts_44_1khz)); + WREG32(HDMI_ACR_44_1 + offset, acr.n_44_1khz); + + WREG32(HDMI_ACR_48_0 + offset, HDMI_ACR_CTS_48(acr.cts_48khz)); + WREG32(HDMI_ACR_48_1 + offset, acr.n_48khz); +} + +static void evergreen_hdmi_write_sad_regs(struct drm_encoder *encoder) +{ + struct radeon_device *rdev = encoder->dev->dev_private; + struct drm_connector *connector; + struct radeon_connector *radeon_connector = NULL; + struct cea_sad *sads; + int i, sad_count; + + static const u16 eld_reg_to_type[][2] = { + { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR0, HDMI_AUDIO_CODING_TYPE_PCM }, + { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR1, HDMI_AUDIO_CODING_TYPE_AC3 }, + { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR2, HDMI_AUDIO_CODING_TYPE_MPEG1 }, + { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR3, HDMI_AUDIO_CODING_TYPE_MP3 }, + { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR4, HDMI_AUDIO_CODING_TYPE_MPEG2 }, + { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR5, HDMI_AUDIO_CODING_TYPE_AAC_LC }, + { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR6, HDMI_AUDIO_CODING_TYPE_DTS }, + { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR7, HDMI_AUDIO_CODING_TYPE_ATRAC }, + { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR9, HDMI_AUDIO_CODING_TYPE_EAC3 }, + { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR10, HDMI_AUDIO_CODING_TYPE_DTS_HD }, + { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR11, HDMI_AUDIO_CODING_TYPE_MLP }, + { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR13, HDMI_AUDIO_CODING_TYPE_WMA_PRO }, + }; + + list_for_each_entry(connector, &encoder->dev->mode_config.connector_list, head) { + if (connector->encoder == encoder) + radeon_connector = to_radeon_connector(connector); + } + + if (!radeon_connector) { + DRM_ERROR("Couldn't find encoder's connector\n"); + return; + } + + sad_count = drm_edid_to_sad(radeon_connector->edid, &sads); + if (sad_count < 0) { + DRM_ERROR("Couldn't read SADs: %d\n", sad_count); + return; + } + BUG_ON(!sads); + + for (i = 0; i < ARRAY_SIZE(eld_reg_to_type); i++) { + u32 value = 0; + int j; + + for (j = 0; j < sad_count; j++) { + struct cea_sad *sad = &sads[j]; + + if (sad->format == eld_reg_to_type[i][1]) { + value = MAX_CHANNELS(sad->channels) | + DESCRIPTOR_BYTE_2(sad->byte2) | + SUPPORTED_FREQUENCIES(sad->freq); + if (sad->format == HDMI_AUDIO_CODING_TYPE_PCM) + value |= SUPPORTED_FREQUENCIES_STEREO(sad->freq); + break; + } + } + WREG32(eld_reg_to_type[i][0], value); + } + + kfree(sads); +} + +/* + * build a HDMI Video Info Frame + */ +static void evergreen_hdmi_update_avi_infoframe(struct drm_encoder *encoder, + void *buffer, size_t size) +{ + 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; + uint32_t offset = dig->afmt->offset; + uint8_t *frame = buffer + 3; + uint8_t *header = buffer; + + WREG32(AFMT_AVI_INFO0 + offset, + frame[0x0] | (frame[0x1] << 8) | (frame[0x2] << 16) | (frame[0x3] << 24)); + WREG32(AFMT_AVI_INFO1 + offset, + frame[0x4] | (frame[0x5] << 8) | (frame[0x6] << 16) | (frame[0x7] << 24)); + WREG32(AFMT_AVI_INFO2 + offset, + frame[0x8] | (frame[0x9] << 8) | (frame[0xA] << 16) | (frame[0xB] << 24)); + WREG32(AFMT_AVI_INFO3 + offset, + frame[0xC] | (frame[0xD] << 8) | (header[1] << 24)); +} + +static void evergreen_audio_set_dto(struct drm_encoder *encoder, u32 clock) +{ + 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 radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc); + u32 base_rate = 24000; + + if (!dig || !dig->afmt) + return; + + /* XXX two dtos; generally use dto0 for hdmi */ + /* Express [24MHz / target pixel clock] as an exact rational + * number (coefficient of two integer numbers. DCCG_AUDIO_DTOx_PHASE + * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator + */ + WREG32(DCCG_AUDIO_DTO_SOURCE, DCCG_AUDIO_DTO0_SOURCE_SEL(radeon_crtc->crtc_id)); + WREG32(DCCG_AUDIO_DTO0_PHASE, base_rate * 100); + WREG32(DCCG_AUDIO_DTO0_MODULE, clock * 100); +} + + +/* + * update the info frames with the data from the current display mode + */ +void evergreen_hdmi_setmode(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; + u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AVI_INFOFRAME_SIZE]; + struct hdmi_avi_infoframe frame; + uint32_t offset; + ssize_t err; + + if (!dig || !dig->afmt) + return; + + /* Silent, r600_hdmi_enable will raise WARN for us */ + if (!dig->afmt->enabled) + return; + offset = dig->afmt->offset; + + evergreen_audio_set_dto(encoder, mode->clock); + + WREG32(HDMI_VBI_PACKET_CONTROL + offset, + HDMI_NULL_SEND); /* send null packets when required */ + + WREG32(AFMT_AUDIO_CRC_CONTROL + offset, 0x1000); + + WREG32(HDMI_VBI_PACKET_CONTROL + offset, + HDMI_NULL_SEND | /* send null packets when required */ + HDMI_GC_SEND | /* send general control packets */ + HDMI_GC_CONT); /* send general control packets every frame */ + + WREG32(HDMI_INFOFRAME_CONTROL0 + offset, + HDMI_AUDIO_INFO_SEND | /* enable audio info frames (frames won't be set until audio is enabled) */ + HDMI_AUDIO_INFO_CONT); /* required for audio info values to be updated */ + + WREG32(AFMT_INFOFRAME_CONTROL0 + offset, + AFMT_AUDIO_INFO_UPDATE); /* required for audio info values to be updated */ + + WREG32(HDMI_INFOFRAME_CONTROL1 + offset, + HDMI_AUDIO_INFO_LINE(2)); /* anything other than 0 */ + + WREG32(HDMI_GC + offset, 0); /* unset HDMI_GC_AVMUTE */ + + WREG32(HDMI_AUDIO_PACKET_CONTROL + offset, + HDMI_AUDIO_DELAY_EN(1) | /* set the default audio delay */ + HDMI_AUDIO_PACKETS_PER_LINE(3)); /* should be suffient for all audio modes and small enough for all hblanks */ + + WREG32(AFMT_AUDIO_PACKET_CONTROL + offset, + AFMT_60958_CS_UPDATE); /* allow 60958 channel status fields to be updated */ + + /* fglrx clears sth in AFMT_AUDIO_PACKET_CONTROL2 here */ + + WREG32(HDMI_ACR_PACKET_CONTROL + offset, + HDMI_ACR_AUTO_SEND | /* allow hw to sent ACR packets when required */ + HDMI_ACR_SOURCE); /* select SW CTS value */ + + evergreen_hdmi_update_ACR(encoder, mode->clock); + + WREG32(AFMT_60958_0 + offset, + AFMT_60958_CS_CHANNEL_NUMBER_L(1)); + + WREG32(AFMT_60958_1 + offset, + AFMT_60958_CS_CHANNEL_NUMBER_R(2)); + + WREG32(AFMT_60958_2 + offset, + AFMT_60958_CS_CHANNEL_NUMBER_2(3) | + AFMT_60958_CS_CHANNEL_NUMBER_3(4) | + AFMT_60958_CS_CHANNEL_NUMBER_4(5) | + AFMT_60958_CS_CHANNEL_NUMBER_5(6) | + AFMT_60958_CS_CHANNEL_NUMBER_6(7) | + AFMT_60958_CS_CHANNEL_NUMBER_7(8)); + + /* fglrx sets 0x0001005f | (x & 0x00fc0000) in 0x5f78 here */ + + WREG32(AFMT_AUDIO_PACKET_CONTROL2 + offset, + AFMT_AUDIO_CHANNEL_ENABLE(0xff)); + + /* fglrx sets 0x40 in 0x5f80 here */ + evergreen_hdmi_write_sad_regs(encoder); + + err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode); + if (err < 0) { + DRM_ERROR("failed to setup AVI infoframe: %zd\n", err); + return; + } + + err = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer)); + if (err < 0) { + DRM_ERROR("failed to pack AVI infoframe: %zd\n", err); + return; + } + + evergreen_hdmi_update_avi_infoframe(encoder, buffer, sizeof(buffer)); + + WREG32_OR(HDMI_INFOFRAME_CONTROL0 + offset, + HDMI_AVI_INFO_SEND | /* enable AVI info frames */ + HDMI_AVI_INFO_CONT); /* required for audio info values to be updated */ + + WREG32_P(HDMI_INFOFRAME_CONTROL1 + offset, + HDMI_AVI_INFO_LINE(2), /* anything other than 0 */ + ~HDMI_AVI_INFO_LINE_MASK); + + WREG32_OR(AFMT_AUDIO_PACKET_CONTROL + offset, + AFMT_AUDIO_SAMPLE_SEND); /* send audio packets */ + + /* it's unknown what these bits do excatly, but it's indeed quite useful for debugging */ + WREG32(AFMT_RAMP_CONTROL0 + offset, 0x00FFFFFF); + WREG32(AFMT_RAMP_CONTROL1 + offset, 0x007FFFFF); + WREG32(AFMT_RAMP_CONTROL2 + offset, 0x00000001); + WREG32(AFMT_RAMP_CONTROL3 + offset, 0x00000001); +} + +void evergreen_hdmi_enable(struct drm_encoder *encoder, bool enable) +{ + struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); + struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; + + if (!dig || !dig->afmt) + return; + + /* Silent, r600_hdmi_enable will raise WARN for us */ + if (enable && dig->afmt->enabled) + return; + if (!enable && !dig->afmt->enabled) + return; + + dig->afmt->enabled = enable; + + DRM_DEBUG("%sabling HDMI interface @ 0x%04X for encoder 0x%x\n", + enable ? "En" : "Dis", dig->afmt->offset, radeon_encoder->encoder_id); +} |