summaryrefslogtreecommitdiffstats
path: root/sys/dev/drm2/radeon/r600_hdmi.c
diff options
context:
space:
mode:
Diffstat (limited to 'sys/dev/drm2/radeon/r600_hdmi.c')
-rw-r--r--sys/dev/drm2/radeon/r600_hdmi.c589
1 files changed, 589 insertions, 0 deletions
diff --git a/sys/dev/drm2/radeon/r600_hdmi.c b/sys/dev/drm2/radeon/r600_hdmi.c
new file mode 100644
index 0000000..46a72fb
--- /dev/null
+++ b/sys/dev/drm2/radeon/r600_hdmi.c
@@ -0,0 +1,589 @@
+/*
+ * 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
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <dev/drm2/drmP.h>
+#include <dev/drm2/radeon/radeon_drm.h>
+#include "radeon.h"
+#include "radeon_asic.h"
+#include "r600d.h"
+#include "atom.h"
+
+/*
+ * HDMI color format
+ */
+enum r600_hdmi_color_format {
+ RGB = 0,
+ YCC_422 = 1,
+ YCC_444 = 2
+};
+
+/*
+ * IEC60958 status bits
+ */
+enum r600_hdmi_iec_status_bits {
+ AUDIO_STATUS_DIG_ENABLE = 0x01,
+ AUDIO_STATUS_V = 0x02,
+ AUDIO_STATUS_VCFG = 0x04,
+ AUDIO_STATUS_EMPHASIS = 0x08,
+ AUDIO_STATUS_COPYRIGHT = 0x10,
+ AUDIO_STATUS_NONAUDIO = 0x20,
+ AUDIO_STATUS_PROFESSIONAL = 0x40,
+ AUDIO_STATUS_LEVEL = 0x80
+};
+
+static const struct radeon_hdmi_acr r600_hdmi_predefined_acr[] = {
+ /* 32kHz 44.1kHz 48kHz */
+ /* Clock N CTS N CTS N CTS */
+ { 25174, 4576, 28125, 7007, 31250, 6864, 28125 }, /* 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 */
+ { 74175, 11648, 210937, 17836, 234375, 11648, 140625 }, /* 74.25/1.001 MHz */
+ { 74250, 4096, 74250, 6272, 82500, 6144, 74250 }, /* 74.25 MHz */
+ { 148351, 11648, 421875, 8918, 234375, 5824, 140625 }, /* 148.50/1.001 MHz */
+ { 148500, 4096, 148500, 6272, 165000, 6144, 148500 }, /* 148.50 MHz */
+ { 0, 4096, 0, 6272, 0, 6144, 0 } /* Other */
+};
+
+/*
+ * calculate CTS value if it's not found in the table
+ */
+static void r600_hdmi_calc_cts(uint32_t clock, int *CTS, int N, int freq)
+{
+ if (*CTS == 0)
+ *CTS = clock * N / (128 * freq) * 1000;
+ DRM_DEBUG("Using ACR timing N=%d CTS=%d for frequency %d\n",
+ N, *CTS, freq);
+}
+
+struct radeon_hdmi_acr r600_hdmi_acr(uint32_t clock)
+{
+ struct radeon_hdmi_acr res;
+ u8 i;
+
+ for (i = 0; r600_hdmi_predefined_acr[i].clock != clock &&
+ r600_hdmi_predefined_acr[i].clock != 0; i++)
+ ;
+ res = r600_hdmi_predefined_acr[i];
+
+ /* In case some CTS are missing */
+ r600_hdmi_calc_cts(clock, &res.cts_32khz, res.n_32khz, 32000);
+ r600_hdmi_calc_cts(clock, &res.cts_44_1khz, res.n_44_1khz, 44100);
+ r600_hdmi_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 r600_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(HDMI0_ACR_32_0 + offset, HDMI0_ACR_CTS_32(acr.cts_32khz));
+ WREG32(HDMI0_ACR_32_1 + offset, acr.n_32khz);
+
+ WREG32(HDMI0_ACR_44_0 + offset, HDMI0_ACR_CTS_44(acr.cts_44_1khz));
+ WREG32(HDMI0_ACR_44_1 + offset, acr.n_44_1khz);
+
+ WREG32(HDMI0_ACR_48_0 + offset, HDMI0_ACR_CTS_48(acr.cts_48khz));
+ WREG32(HDMI0_ACR_48_1 + offset, acr.n_48khz);
+}
+
+/*
+ * calculate the crc for a given info frame
+ */
+static void r600_hdmi_infoframe_checksum(uint8_t packetType,
+ uint8_t versionNumber,
+ uint8_t length,
+ uint8_t *frame)
+{
+ int i;
+ frame[0] = packetType + versionNumber + length;
+ for (i = 1; i <= length; i++)
+ frame[0] += frame[i];
+ frame[0] = 0x100 - frame[0];
+}
+
+/*
+ * build a HDMI Video Info Frame
+ */
+static void r600_hdmi_videoinfoframe(
+ struct drm_encoder *encoder,
+ enum r600_hdmi_color_format color_format,
+ int active_information_present,
+ uint8_t active_format_aspect_ratio,
+ uint8_t scan_information,
+ uint8_t colorimetry,
+ uint8_t ex_colorimetry,
+ uint8_t quantization,
+ int ITC,
+ uint8_t picture_aspect_ratio,
+ uint8_t video_format_identification,
+ uint8_t pixel_repetition,
+ uint8_t non_uniform_picture_scaling,
+ uint8_t bar_info_data_valid,
+ uint16_t top_bar,
+ uint16_t bottom_bar,
+ uint16_t left_bar,
+ uint16_t right_bar
+)
+{
+ 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[14];
+
+ frame[0x0] = 0;
+ frame[0x1] =
+ (scan_information & 0x3) |
+ ((bar_info_data_valid & 0x3) << 2) |
+ ((active_information_present & 0x1) << 4) |
+ ((color_format & 0x3) << 5);
+ frame[0x2] =
+ (active_format_aspect_ratio & 0xF) |
+ ((picture_aspect_ratio & 0x3) << 4) |
+ ((colorimetry & 0x3) << 6);
+ frame[0x3] =
+ (non_uniform_picture_scaling & 0x3) |
+ ((quantization & 0x3) << 2) |
+ ((ex_colorimetry & 0x7) << 4) |
+ ((ITC & 0x1) << 7);
+ frame[0x4] = (video_format_identification & 0x7F);
+ frame[0x5] = (pixel_repetition & 0xF);
+ frame[0x6] = (top_bar & 0xFF);
+ frame[0x7] = (top_bar >> 8);
+ frame[0x8] = (bottom_bar & 0xFF);
+ frame[0x9] = (bottom_bar >> 8);
+ frame[0xA] = (left_bar & 0xFF);
+ frame[0xB] = (left_bar >> 8);
+ frame[0xC] = (right_bar & 0xFF);
+ frame[0xD] = (right_bar >> 8);
+
+ r600_hdmi_infoframe_checksum(0x82, 0x02, 0x0D, frame);
+ /* Our header values (type, version, length) should be alright, Intel
+ * is using the same. Checksum function also seems to be OK, it works
+ * fine for audio infoframe. However calculated value is always lower
+ * by 2 in comparison to fglrx. It breaks displaying anything in case
+ * of TVs that strictly check the checksum. Hack it manually here to
+ * workaround this issue. */
+ frame[0x0] += 2;
+
+ WREG32(HDMI0_AVI_INFO0 + offset,
+ frame[0x0] | (frame[0x1] << 8) | (frame[0x2] << 16) | (frame[0x3] << 24));
+ WREG32(HDMI0_AVI_INFO1 + offset,
+ frame[0x4] | (frame[0x5] << 8) | (frame[0x6] << 16) | (frame[0x7] << 24));
+ WREG32(HDMI0_AVI_INFO2 + offset,
+ frame[0x8] | (frame[0x9] << 8) | (frame[0xA] << 16) | (frame[0xB] << 24));
+ WREG32(HDMI0_AVI_INFO3 + offset,
+ frame[0xC] | (frame[0xD] << 8));
+}
+
+/*
+ * build a Audio Info Frame
+ */
+static void r600_hdmi_audioinfoframe(
+ struct drm_encoder *encoder,
+ uint8_t channel_count,
+ uint8_t coding_type,
+ uint8_t sample_size,
+ uint8_t sample_frequency,
+ uint8_t format,
+ uint8_t channel_allocation,
+ uint8_t level_shift,
+ int downmix_inhibit
+)
+{
+ 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[11];
+
+ frame[0x0] = 0;
+ frame[0x1] = (channel_count & 0x7) | ((coding_type & 0xF) << 4);
+ frame[0x2] = (sample_size & 0x3) | ((sample_frequency & 0x7) << 2);
+ frame[0x3] = format;
+ frame[0x4] = channel_allocation;
+ frame[0x5] = ((level_shift & 0xF) << 3) | ((downmix_inhibit & 0x1) << 7);
+ frame[0x6] = 0;
+ frame[0x7] = 0;
+ frame[0x8] = 0;
+ frame[0x9] = 0;
+ frame[0xA] = 0;
+
+ r600_hdmi_infoframe_checksum(0x84, 0x01, 0x0A, frame);
+
+ WREG32(HDMI0_AUDIO_INFO0 + offset,
+ frame[0x0] | (frame[0x1] << 8) | (frame[0x2] << 16) | (frame[0x3] << 24));
+ WREG32(HDMI0_AUDIO_INFO1 + offset,
+ frame[0x4] | (frame[0x5] << 8) | (frame[0x6] << 16) | (frame[0x8] << 24));
+}
+
+/*
+ * test if audio buffer is filled enough to start playing
+ */
+static bool r600_hdmi_is_audio_buffer_filled(struct drm_encoder *encoder)
+{
+ 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;
+
+ return (RREG32(HDMI0_STATUS + offset) & 0x10) != 0;
+}
+
+/*
+ * have buffer status changed since last call?
+ */
+int r600_hdmi_buffer_status_changed(struct drm_encoder *encoder)
+{
+ struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+ struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
+ int status, result;
+
+ if (!dig->afmt || !dig->afmt->enabled)
+ return 0;
+
+ status = r600_hdmi_is_audio_buffer_filled(encoder);
+ result = dig->afmt->last_buffer_filled_status != status;
+ dig->afmt->last_buffer_filled_status = status;
+
+ return result;
+}
+
+/*
+ * write the audio workaround status to the hardware
+ */
+static void r600_hdmi_audio_workaround(struct drm_encoder *encoder)
+{
+ 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;
+ bool hdmi_audio_workaround = false; /* FIXME */
+ u32 value;
+
+ if (!hdmi_audio_workaround ||
+ r600_hdmi_is_audio_buffer_filled(encoder))
+ value = 0; /* disable workaround */
+ else
+ value = HDMI0_AUDIO_TEST_EN; /* enable workaround */
+ WREG32_P(HDMI0_AUDIO_PACKET_CONTROL + offset,
+ value, ~HDMI0_AUDIO_TEST_EN);
+}
+
+
+/*
+ * update the info frames with the data from the current display mode
+ */
+void r600_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;
+ uint32_t offset;
+
+ /* Silent, r600_hdmi_enable will raise WARN for us */
+ if (!dig->afmt->enabled)
+ return;
+ offset = dig->afmt->offset;
+
+ r600_audio_set_clock(encoder, mode->clock);
+
+ WREG32(HDMI0_VBI_PACKET_CONTROL + offset,
+ HDMI0_NULL_SEND); /* send null packets when required */
+
+ WREG32(HDMI0_AUDIO_CRC_CONTROL + offset, 0x1000);
+
+ if (ASIC_IS_DCE32(rdev)) {
+ WREG32(HDMI0_AUDIO_PACKET_CONTROL + offset,
+ HDMI0_AUDIO_DELAY_EN(1) | /* default audio delay */
+ HDMI0_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_AUDIO_SAMPLE_SEND | /* send audio packets */
+ AFMT_60958_CS_UPDATE); /* allow 60958 channel status fields to be updated */
+ } else {
+ WREG32(HDMI0_AUDIO_PACKET_CONTROL + offset,
+ HDMI0_AUDIO_SAMPLE_SEND | /* send audio packets */
+ HDMI0_AUDIO_DELAY_EN(1) | /* default audio delay */
+ HDMI0_AUDIO_PACKETS_PER_LINE(3) | /* should be suffient for all audio modes and small enough for all hblanks */
+ HDMI0_60958_CS_UPDATE); /* allow 60958 channel status fields to be updated */
+ }
+
+ WREG32(HDMI0_ACR_PACKET_CONTROL + offset,
+ HDMI0_ACR_AUTO_SEND | /* allow hw to sent ACR packets when required */
+ HDMI0_ACR_SOURCE); /* select SW CTS value */
+
+ WREG32(HDMI0_VBI_PACKET_CONTROL + offset,
+ HDMI0_NULL_SEND | /* send null packets when required */
+ HDMI0_GC_SEND | /* send general control packets */
+ HDMI0_GC_CONT); /* send general control packets every frame */
+
+ /* TODO: HDMI0_AUDIO_INFO_UPDATE */
+ WREG32(HDMI0_INFOFRAME_CONTROL0 + offset,
+ HDMI0_AVI_INFO_SEND | /* enable AVI info frames */
+ HDMI0_AVI_INFO_CONT | /* send AVI info frames every frame/field */
+ HDMI0_AUDIO_INFO_SEND | /* enable audio info frames (frames won't be set until audio is enabled) */
+ HDMI0_AUDIO_INFO_CONT); /* send audio info frames every frame/field */
+
+ WREG32(HDMI0_INFOFRAME_CONTROL1 + offset,
+ HDMI0_AVI_INFO_LINE(2) | /* anything other than 0 */
+ HDMI0_AUDIO_INFO_LINE(2)); /* anything other than 0 */
+
+ WREG32(HDMI0_GC + offset, 0); /* unset HDMI0_GC_AVMUTE */
+
+ r600_hdmi_videoinfoframe(encoder, RGB, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+
+ r600_hdmi_update_ACR(encoder, mode->clock);
+
+ /* it's unknown what these bits do excatly, but it's indeed quite useful for debugging */
+ WREG32(HDMI0_RAMP_CONTROL0 + offset, 0x00FFFFFF);
+ WREG32(HDMI0_RAMP_CONTROL1 + offset, 0x007FFFFF);
+ WREG32(HDMI0_RAMP_CONTROL2 + offset, 0x00000001);
+ WREG32(HDMI0_RAMP_CONTROL3 + offset, 0x00000001);
+
+ r600_hdmi_audio_workaround(encoder);
+}
+
+/*
+ * update settings with current parameters from audio engine
+ */
+void r600_hdmi_update_audio_settings(struct drm_encoder *encoder)
+{
+ 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 r600_audio audio = r600_audio_status(rdev);
+ uint32_t offset;
+ uint32_t iec;
+
+ if (!dig->afmt || !dig->afmt->enabled)
+ return;
+ offset = dig->afmt->offset;
+
+ DRM_DEBUG("%s with %d channels, %d Hz sampling rate, %d bits per sample,\n",
+ r600_hdmi_is_audio_buffer_filled(encoder) ? "playing" : "stopped",
+ audio.channels, audio.rate, audio.bits_per_sample);
+ DRM_DEBUG("0x%02X IEC60958 status bits and 0x%02X category code\n",
+ (int)audio.status_bits, (int)audio.category_code);
+
+ iec = 0;
+ if (audio.status_bits & AUDIO_STATUS_PROFESSIONAL)
+ iec |= 1 << 0;
+ if (audio.status_bits & AUDIO_STATUS_NONAUDIO)
+ iec |= 1 << 1;
+ if (audio.status_bits & AUDIO_STATUS_COPYRIGHT)
+ iec |= 1 << 2;
+ if (audio.status_bits & AUDIO_STATUS_EMPHASIS)
+ iec |= 1 << 3;
+
+ iec |= HDMI0_60958_CS_CATEGORY_CODE(audio.category_code);
+
+ switch (audio.rate) {
+ case 32000:
+ iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0x3);
+ break;
+ case 44100:
+ iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0x0);
+ break;
+ case 48000:
+ iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0x2);
+ break;
+ case 88200:
+ iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0x8);
+ break;
+ case 96000:
+ iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0xa);
+ break;
+ case 176400:
+ iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0xc);
+ break;
+ case 192000:
+ iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0xe);
+ break;
+ }
+
+ WREG32(HDMI0_60958_0 + offset, iec);
+
+ iec = 0;
+ switch (audio.bits_per_sample) {
+ case 16:
+ iec |= HDMI0_60958_CS_WORD_LENGTH(0x2);
+ break;
+ case 20:
+ iec |= HDMI0_60958_CS_WORD_LENGTH(0x3);
+ break;
+ case 24:
+ iec |= HDMI0_60958_CS_WORD_LENGTH(0xb);
+ break;
+ }
+ if (audio.status_bits & AUDIO_STATUS_V)
+ iec |= 0x5 << 16;
+ WREG32_P(HDMI0_60958_1 + offset, iec, ~0x5000f);
+
+ r600_hdmi_audioinfoframe(encoder, audio.channels - 1, 0, 0, 0, 0, 0, 0,
+ 0);
+
+ r600_hdmi_audio_workaround(encoder);
+}
+
+/*
+ * enable the HDMI engine
+ */
+void r600_hdmi_enable(struct drm_encoder *encoder)
+{
+ 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;
+ u32 hdmi;
+
+ if (ASIC_IS_DCE6(rdev))
+ return;
+
+ /* Silent, r600_hdmi_enable will raise WARN for us */
+ if (dig->afmt->enabled)
+ return;
+ offset = dig->afmt->offset;
+
+ /* Older chipsets require setting HDMI and routing manually */
+ if (rdev->family >= CHIP_R600 && !ASIC_IS_DCE3(rdev)) {
+ hdmi = HDMI0_ERROR_ACK | HDMI0_ENABLE;
+ switch (radeon_encoder->encoder_id) {
+ case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
+ WREG32_P(AVIVO_TMDSA_CNTL, AVIVO_TMDSA_CNTL_HDMI_EN,
+ ~AVIVO_TMDSA_CNTL_HDMI_EN);
+ hdmi |= HDMI0_STREAM(HDMI0_STREAM_TMDSA);
+ break;
+ case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
+ WREG32_P(AVIVO_LVTMA_CNTL, AVIVO_LVTMA_CNTL_HDMI_EN,
+ ~AVIVO_LVTMA_CNTL_HDMI_EN);
+ hdmi |= HDMI0_STREAM(HDMI0_STREAM_LVTMA);
+ break;
+ case ENCODER_OBJECT_ID_INTERNAL_DDI:
+ WREG32_P(DDIA_CNTL, DDIA_HDMI_EN, ~DDIA_HDMI_EN);
+ hdmi |= HDMI0_STREAM(HDMI0_STREAM_DDIA);
+ break;
+ case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1:
+ hdmi |= HDMI0_STREAM(HDMI0_STREAM_DVOA);
+ break;
+ default:
+ dev_err(rdev->dev, "Invalid encoder for HDMI: 0x%X\n",
+ radeon_encoder->encoder_id);
+ break;
+ }
+ WREG32(HDMI0_CONTROL + offset, hdmi);
+ }
+
+ if (rdev->irq.installed) {
+ /* if irq is available use it */
+ radeon_irq_kms_enable_afmt(rdev, dig->afmt->id);
+ }
+
+ dig->afmt->enabled = true;
+
+ DRM_DEBUG("Enabling HDMI interface @ 0x%04X for encoder 0x%x\n",
+ offset, radeon_encoder->encoder_id);
+}
+
+/*
+ * disable the HDMI engine
+ */
+void r600_hdmi_disable(struct drm_encoder *encoder)
+{
+ 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;
+
+ if (ASIC_IS_DCE6(rdev))
+ return;
+
+ /* Called for ATOM_ENCODER_MODE_HDMI only */
+ if (!dig || !dig->afmt) {
+ DRM_ERROR("%s: !dig || !dig->afmt", __func__);
+ return;
+ }
+ if (!dig->afmt->enabled)
+ return;
+ offset = dig->afmt->offset;
+
+ DRM_DEBUG("Disabling HDMI interface @ 0x%04X for encoder 0x%x\n",
+ offset, radeon_encoder->encoder_id);
+
+ /* disable irq */
+ radeon_irq_kms_disable_afmt(rdev, dig->afmt->id);
+
+ /* Older chipsets not handled by AtomBIOS */
+ if (rdev->family >= CHIP_R600 && !ASIC_IS_DCE3(rdev)) {
+ switch (radeon_encoder->encoder_id) {
+ case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
+ WREG32_P(AVIVO_TMDSA_CNTL, 0,
+ ~AVIVO_TMDSA_CNTL_HDMI_EN);
+ break;
+ case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
+ WREG32_P(AVIVO_LVTMA_CNTL, 0,
+ ~AVIVO_LVTMA_CNTL_HDMI_EN);
+ break;
+ case ENCODER_OBJECT_ID_INTERNAL_DDI:
+ WREG32_P(DDIA_CNTL, 0, ~DDIA_HDMI_EN);
+ break;
+ case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1:
+ break;
+ default:
+ dev_err(rdev->dev, "Invalid encoder for HDMI: 0x%X\n",
+ radeon_encoder->encoder_id);
+ break;
+ }
+ WREG32(HDMI0_CONTROL + offset, HDMI0_ERROR_ACK);
+ }
+
+ dig->afmt->enabled = false;
+}
OpenPOWER on IntegriCloud