--- /dev/null
+/*
+ * 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 "drmP.h"
+#include "radeon.h"
+#include "radeon_reg.h"
+#include "atom.h"
+
+#define AUDIO_TIMER_INTERVALL 100 /* 1/10 sekund should be enough */
+
+/*
+ * check if the chipset is supported
+ */
+static int r600_audio_chipset_supported(struct radeon_device *rdev)
+{
+ return rdev->family >= CHIP_R600
+ || rdev->family == CHIP_RS600
+ || rdev->family == CHIP_RS690
+ || rdev->family == CHIP_RS740;
+}
+
+/*
+ * current number of channels
+ */
+static int r600_audio_channels(struct radeon_device *rdev)
+{
+ return (RREG32(R600_AUDIO_RATE_BPS_CHANNEL) & 0x7) + 1;
+}
+
+/*
+ * current bits per sample
+ */
+static int r600_audio_bits_per_sample(struct radeon_device *rdev)
+{
+ uint32_t value = (RREG32(R600_AUDIO_RATE_BPS_CHANNEL) & 0xF0) >> 4;
+ switch (value) {
+ case 0x0: return 8;
+ case 0x1: return 16;
+ case 0x2: return 20;
+ case 0x3: return 24;
+ case 0x4: return 32;
+ }
+
+ DRM_ERROR("Unknown bits per sample 0x%x using 16 instead.\n", (int)value);
+
+ return 16;
+}
+
+/*
+ * current sampling rate in HZ
+ */
+static int r600_audio_rate(struct radeon_device *rdev)
+{
+ uint32_t value = RREG32(R600_AUDIO_RATE_BPS_CHANNEL);
+ uint32_t result;
+
+ if (value & 0x4000)
+ result = 44100;
+ else
+ result = 48000;
+
+ result *= ((value >> 11) & 0x7) + 1;
+ result /= ((value >> 8) & 0x7) + 1;
+
+ return result;
+}
+
+/*
+ * iec 60958 status bits
+ */
+static uint8_t r600_audio_status_bits(struct radeon_device *rdev)
+{
+ return RREG32(R600_AUDIO_STATUS_BITS) & 0xff;
+}
+
+/*
+ * iec 60958 category code
+ */
+static uint8_t r600_audio_category_code(struct radeon_device *rdev)
+{
+ return (RREG32(R600_AUDIO_STATUS_BITS) >> 8) & 0xff;
+}
+
+/*
+ * update all hdmi interfaces with current audio parameters
+ */
+static void r600_audio_update_hdmi(unsigned long param)
+{
+ struct radeon_device *rdev = (struct radeon_device *)param;
+ struct drm_device *dev = rdev->ddev;
+
+ int channels = r600_audio_channels(rdev);
+ int rate = r600_audio_rate(rdev);
+ int bps = r600_audio_bits_per_sample(rdev);
+ uint8_t status_bits = r600_audio_status_bits(rdev);
+ uint8_t category_code = r600_audio_category_code(rdev);
+
+ struct drm_encoder *encoder;
+ int changes = 0;
+
+ changes |= channels != rdev->audio_channels;
+ changes |= rate != rdev->audio_rate;
+ changes |= bps != rdev->audio_bits_per_sample;
+ changes |= status_bits != rdev->audio_status_bits;
+ changes |= category_code != rdev->audio_category_code;
+
+ if (changes) {
+ rdev->audio_channels = channels;
+ rdev->audio_rate = rate;
+ rdev->audio_bits_per_sample = bps;
+ rdev->audio_status_bits = status_bits;
+ rdev->audio_category_code = category_code;
+ }
+
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+ if (changes || r600_hdmi_buffer_status_changed(encoder))
+ r600_hdmi_update_audio_settings(
+ encoder, channels,
+ rate, bps, status_bits,
+ category_code);
+ }
+
+ mod_timer(&rdev->audio_timer,
+ jiffies + msecs_to_jiffies(AUDIO_TIMER_INTERVALL));
+}
+
+/*
+ * initialize the audio vars and register the update timer
+ */
+int r600_audio_init(struct radeon_device *rdev)
+{
+ if (!r600_audio_chipset_supported(rdev))
+ return 0;
+
+ DRM_INFO("%s audio support", radeon_audio ? "Enabling" : "Disabling");
+ WREG32_P(R600_AUDIO_ENABLE, radeon_audio ? 0x81000000 : 0x0, ~0x81000000);
+
+ rdev->audio_channels = -1;
+ rdev->audio_rate = -1;
+ rdev->audio_bits_per_sample = -1;
+ rdev->audio_status_bits = 0;
+ rdev->audio_category_code = 0;
+
+ setup_timer(
+ &rdev->audio_timer,
+ r600_audio_update_hdmi,
+ (unsigned long)rdev);
+
+ mod_timer(&rdev->audio_timer, jiffies + 1);
+
+ return 0;
+}
+
+/*
+ * determin how the encoders and audio interface is wired together
+ */
+int r600_audio_tmds_index(struct drm_encoder *encoder)
+{
+ struct drm_device *dev = encoder->dev;
+ struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+ struct drm_encoder *other;
+
+ switch (radeon_encoder->encoder_id) {
+ case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
+ return 0;
+
+ case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
+ /* special case check if an TMDS1 is present */
+ list_for_each_entry(other, &dev->mode_config.encoder_list, head) {
+ if (to_radeon_encoder(other)->encoder_id ==
+ ENCODER_OBJECT_ID_INTERNAL_TMDS1)
+ return 1;
+ }
+ return 0;
+
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
+ case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
+ return 1;
+
+ default:
+ DRM_ERROR("Unsupported encoder type 0x%02X\n",
+ radeon_encoder->encoder_id);
+ return -1;
+ }
+}
+
+/*
+ * atach the audio codec to the clock source of the encoder
+ */
+void r600_audio_set_clock(struct drm_encoder *encoder, int clock)
+{
+ struct drm_device *dev = encoder->dev;
+ struct radeon_device *rdev = dev->dev_private;
+ struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+ int base_rate = 48000;
+
+ switch (radeon_encoder->encoder_id) {
+ case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
+ case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
+ WREG32_P(R600_AUDIO_TIMING, 0, ~0x301);
+ break;
+
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
+ case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
+ WREG32_P(R600_AUDIO_TIMING, 0x100, ~0x301);
+ break;
+
+ default:
+ DRM_ERROR("Unsupported encoder type 0x%02X\n",
+ radeon_encoder->encoder_id);
+ return;
+ }
+
+ switch (r600_audio_tmds_index(encoder)) {
+ case 0:
+ WREG32(R600_AUDIO_PLL1_MUL, base_rate*50);
+ WREG32(R600_AUDIO_PLL1_DIV, clock*100);
+ WREG32(R600_AUDIO_CLK_SRCSEL, 0);
+ break;
+
+ case 1:
+ WREG32(R600_AUDIO_PLL2_MUL, base_rate*50);
+ WREG32(R600_AUDIO_PLL2_DIV, clock*100);
+ WREG32(R600_AUDIO_CLK_SRCSEL, 1);
+ break;
+ }
+}
+
+/*
+ * release the audio timer
+ * TODO: How to do this correctly on SMP systems?
+ */
+void r600_audio_fini(struct radeon_device *rdev)
+{
+ if (!r600_audio_chipset_supported(rdev))
+ return;
+
+ WREG32_P(R600_AUDIO_ENABLE, 0x0, ~0x81000000);
+
+ del_timer(&rdev->audio_timer);
+}
--- /dev/null
+/*
+ * 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 "drmP.h"
+#include "radeon_drm.h"
+#include "radeon.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
+};
+
+struct {
+ uint32_t Clock;
+
+ int N_32kHz;
+ int CTS_32kHz;
+
+ int N_44_1kHz;
+ int CTS_44_1kHz;
+
+ int N_48kHz;
+ int CTS_48kHz;
+
+} r600_hdmi_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);
+}
+
+/*
+ * 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;
+ uint32_t offset = to_radeon_encoder(encoder)->hdmi_offset;
+ int CTS;
+ int N;
+ int i;
+
+ for (i = 0; r600_hdmi_ACR[i].Clock != clock && r600_hdmi_ACR[i].Clock != 0; i++);
+
+ CTS = r600_hdmi_ACR[i].CTS_32kHz;
+ N = r600_hdmi_ACR[i].N_32kHz;
+ r600_hdmi_calc_CTS(clock, &CTS, N, 32000);
+ WREG32(offset+R600_HDMI_32kHz_CTS, CTS << 12);
+ WREG32(offset+R600_HDMI_32kHz_N, N);
+
+ CTS = r600_hdmi_ACR[i].CTS_44_1kHz;
+ N = r600_hdmi_ACR[i].N_44_1kHz;
+ r600_hdmi_calc_CTS(clock, &CTS, N, 44100);
+ WREG32(offset+R600_HDMI_44_1kHz_CTS, CTS << 12);
+ WREG32(offset+R600_HDMI_44_1kHz_N, N);
+
+ CTS = r600_hdmi_ACR[i].CTS_48kHz;
+ N = r600_hdmi_ACR[i].N_48kHz;
+ r600_hdmi_calc_CTS(clock, &CTS, N, 48000);
+ WREG32(offset+R600_HDMI_48kHz_CTS, CTS << 12);
+ WREG32(offset+R600_HDMI_48kHz_N, N);
+}
+
+/*
+ * 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;
+ uint32_t offset = to_radeon_encoder(encoder)->hdmi_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);
+
+ WREG32(offset+R600_HDMI_VIDEOINFOFRAME_0,
+ frame[0x0] | (frame[0x1] << 8) | (frame[0x2] << 16) | (frame[0x3] << 24));
+ WREG32(offset+R600_HDMI_VIDEOINFOFRAME_1,
+ frame[0x4] | (frame[0x5] << 8) | (frame[0x6] << 16) | (frame[0x7] << 24));
+ WREG32(offset+R600_HDMI_VIDEOINFOFRAME_2,
+ frame[0x8] | (frame[0x9] << 8) | (frame[0xA] << 16) | (frame[0xB] << 24));
+ WREG32(offset+R600_HDMI_VIDEOINFOFRAME_3,
+ 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;
+ uint32_t offset = to_radeon_encoder(encoder)->hdmi_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(offset+R600_HDMI_AUDIOINFOFRAME_0,
+ frame[0x0] | (frame[0x1] << 8) | (frame[0x2] << 16) | (frame[0x3] << 24));
+ WREG32(offset+R600_HDMI_AUDIOINFOFRAME_1,
+ frame[0x4] | (frame[0x5] << 8) | (frame[0x6] << 16) | (frame[0x8] << 24));
+}
+
+/*
+ * test if audio buffer is filled enough to start playing
+ */
+static int r600_hdmi_is_audio_buffer_filled(struct drm_encoder *encoder)
+{
+ struct drm_device *dev = encoder->dev;
+ struct radeon_device *rdev = dev->dev_private;
+ uint32_t offset = to_radeon_encoder(encoder)->hdmi_offset;
+
+ return (RREG32(offset+R600_HDMI_STATUS) & 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);
+ int status, result;
+
+ if (!radeon_encoder->hdmi_offset)
+ return 0;
+
+ status = r600_hdmi_is_audio_buffer_filled(encoder);
+ result = radeon_encoder->hdmi_buffer_status != status;
+ radeon_encoder->hdmi_buffer_status = status;
+
+ return result;
+}
+
+/*
+ * write the audio workaround status to the hardware
+ */
+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);
+ uint32_t offset = radeon_encoder->hdmi_offset;
+
+ if (!offset)
+ return;
+
+ if (r600_hdmi_is_audio_buffer_filled(encoder)) {
+ /* disable audio workaround and start delivering of audio frames */
+ WREG32_P(offset+R600_HDMI_CNTL, 0x00000001, ~0x00001001);
+
+ } else if (radeon_encoder->hdmi_audio_workaround) {
+ /* enable audio workaround and start delivering of audio frames */
+ WREG32_P(offset+R600_HDMI_CNTL, 0x00001001, ~0x00001001);
+
+ } else {
+ /* disable audio workaround and stop delivering of audio frames */
+ WREG32_P(offset+R600_HDMI_CNTL, 0x00000000, ~0x00001001);
+ }
+}
+
+
+/*
+ * 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;
+ uint32_t offset = to_radeon_encoder(encoder)->hdmi_offset;
+
+ if (!offset)
+ return;
+
+ r600_audio_set_clock(encoder, mode->clock);
+
+ WREG32(offset+R600_HDMI_UNKNOWN_0, 0x1000);
+ WREG32(offset+R600_HDMI_UNKNOWN_1, 0x0);
+ WREG32(offset+R600_HDMI_UNKNOWN_2, 0x1000);
+
+ r600_hdmi_update_ACR(encoder, mode->clock);
+
+ WREG32(offset+R600_HDMI_VIDEOCNTL, 0x13);
+
+ WREG32(offset+R600_HDMI_VERSION, 0x202);
+
+ r600_hdmi_videoinfoframe(encoder, RGB, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+
+ /* it's unknown what these bits do excatly, but it's indeed quite usefull for debugging */
+ WREG32(offset+R600_HDMI_AUDIO_DEBUG_0, 0x00FFFFFF);
+ WREG32(offset+R600_HDMI_AUDIO_DEBUG_1, 0x007FFFFF);
+ WREG32(offset+R600_HDMI_AUDIO_DEBUG_2, 0x00000001);
+ WREG32(offset+R600_HDMI_AUDIO_DEBUG_3, 0x00000001);
+
+ r600_hdmi_audio_workaround(encoder);
+
+ /* audio packets per line, does anyone know how to calc this ? */
+ WREG32_P(offset+R600_HDMI_CNTL, 0x00040000, ~0x001F0000);
+
+ /* update? reset? don't realy know */
+ WREG32_P(offset+R600_HDMI_CNTL, 0x14000000, ~0x14000000);
+}
+
+/*
+ * update settings with current parameters from audio engine
+ */
+void r600_hdmi_update_audio_settings(struct drm_encoder *encoder,
+ int channels,
+ int rate,
+ int bps,
+ uint8_t status_bits,
+ uint8_t category_code)
+{
+ struct drm_device *dev = encoder->dev;
+ struct radeon_device *rdev = dev->dev_private;
+ uint32_t offset = to_radeon_encoder(encoder)->hdmi_offset;
+
+ uint32_t iec;
+
+ if (!offset)
+ return;
+
+ DRM_DEBUG("%s with %d channels, %d Hz sampling rate, %d bits per sample,\n",
+ r600_hdmi_is_audio_buffer_filled(encoder) ? "playing" : "stopped",
+ channels, rate, bps);
+ DRM_DEBUG("0x%02X IEC60958 status bits and 0x%02X category code\n",
+ (int)status_bits, (int)category_code);
+
+ iec = 0;
+ if (status_bits & AUDIO_STATUS_PROFESSIONAL)
+ iec |= 1 << 0;
+ if (status_bits & AUDIO_STATUS_NONAUDIO)
+ iec |= 1 << 1;
+ if (status_bits & AUDIO_STATUS_COPYRIGHT)
+ iec |= 1 << 2;
+ if (status_bits & AUDIO_STATUS_EMPHASIS)
+ iec |= 1 << 3;
+
+ iec |= category_code << 8;
+
+ switch (rate) {
+ case 32000: iec |= 0x3 << 24; break;
+ case 44100: iec |= 0x0 << 24; break;
+ case 88200: iec |= 0x8 << 24; break;
+ case 176400: iec |= 0xc << 24; break;
+ case 48000: iec |= 0x2 << 24; break;
+ case 96000: iec |= 0xa << 24; break;
+ case 192000: iec |= 0xe << 24; break;
+ }
+
+ WREG32(offset+R600_HDMI_IEC60958_1, iec);
+
+ iec = 0;
+ switch (bps) {
+ case 16: iec |= 0x2; break;
+ case 20: iec |= 0x3; break;
+ case 24: iec |= 0xb; break;
+ }
+ if (status_bits & AUDIO_STATUS_V)
+ iec |= 0x5 << 16;
+
+ WREG32_P(offset+R600_HDMI_IEC60958_2, iec, ~0x5000f);
+
+ /* 0x021 or 0x031 sets the audio frame length */
+ WREG32(offset+R600_HDMI_AUDIOCNTL, 0x31);
+ r600_hdmi_audioinfoframe(encoder, channels-1, 0, 0, 0, 0, 0, 0, 0);
+
+ r600_hdmi_audio_workaround(encoder);
+
+ /* update? reset? don't realy know */
+ WREG32_P(offset+R600_HDMI_CNTL, 0x04000000, ~0x04000000);
+}
+
+/*
+ * enable/disable the HDMI engine
+ */
+void r600_hdmi_enable(struct drm_encoder *encoder, int enable)
+{
+ struct drm_device *dev = encoder->dev;
+ struct radeon_device *rdev = dev->dev_private;
+ struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+ uint32_t offset = to_radeon_encoder(encoder)->hdmi_offset;
+
+ if (!offset)
+ return;
+
+ DRM_DEBUG("%s HDMI interface @ 0x%04X\n", enable ? "Enabling" : "Disabling", offset);
+
+ /* some version of atombios ignore the enable HDMI flag
+ * so enabling/disabling HDMI was moved here for TMDS1+2 */
+ switch (radeon_encoder->encoder_id) {
+ case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
+ WREG32_P(AVIVO_TMDSA_CNTL, enable ? 0x4 : 0x0, ~0x4);
+ WREG32(offset+R600_HDMI_ENABLE, enable ? 0x101 : 0x0);
+ break;
+
+ case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
+ WREG32_P(AVIVO_LVTMA_CNTL, enable ? 0x4 : 0x0, ~0x4);
+ WREG32(offset+R600_HDMI_ENABLE, enable ? 0x105 : 0x0);
+ break;
+
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
+ case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
+ /* This part is doubtfull in my opinion */
+ WREG32(offset+R600_HDMI_ENABLE, enable ? 0x110 : 0x0);
+ break;
+
+ default:
+ DRM_ERROR("unknown HDMI output type\n");
+ break;
+ }
+}
+
+/*
+ * determin at which register offset the HDMI encoder is
+ */
+void r600_hdmi_init(struct drm_encoder *encoder)
+{
+ struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+
+ switch (radeon_encoder->encoder_id) {
+ case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
+ radeon_encoder->hdmi_offset = R600_HDMI_TMDS1;
+ break;
+
+ case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
+ switch (r600_audio_tmds_index(encoder)) {
+ case 0:
+ radeon_encoder->hdmi_offset = R600_HDMI_TMDS1;
+ break;
+ case 1:
+ radeon_encoder->hdmi_offset = R600_HDMI_TMDS2;
+ break;
+ default:
+ radeon_encoder->hdmi_offset = 0;
+ break;
+ }
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
+ radeon_encoder->hdmi_offset = R600_HDMI_TMDS2;
+ break;
+
+ case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
+ radeon_encoder->hdmi_offset = R600_HDMI_DIG;
+ break;
+
+ default:
+ radeon_encoder->hdmi_offset = 0;
+ break;
+ }
+
+ DRM_DEBUG("using HDMI engine at offset 0x%04X for encoder 0x%x\n",
+ radeon_encoder->hdmi_offset, radeon_encoder->encoder_id);
+
+ /* TODO: make this configureable */
+ radeon_encoder->hdmi_audio_workaround = 0;
+}
projects / GitHub / exynos8895 / android_kernel_samsung_universal8895.git / commitdiff