diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/dce6_afmt.c')
-rw-r--r-- | drivers/gpu/drm/radeon/dce6_afmt.c | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/dce6_afmt.c b/drivers/gpu/drm/radeon/dce6_afmt.c new file mode 100644 index 000000000000..0d9a6a21088c --- /dev/null +++ b/drivers/gpu/drm/radeon/dce6_afmt.c @@ -0,0 +1,251 @@ +/* + * Copyright 2013 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. + * + */ +#include <linux/hdmi.h> +#include <drm/drmP.h> +#include "radeon.h" +#include "sid.h" + +static u32 dce6_endpoint_rreg(struct radeon_device *rdev, + u32 block_offset, u32 reg) +{ + u32 r; + + WREG32(AZ_F0_CODEC_ENDPOINT_INDEX + block_offset, reg); + r = RREG32(AZ_F0_CODEC_ENDPOINT_DATA + block_offset); + return r; +} + +static void dce6_endpoint_wreg(struct radeon_device *rdev, + u32 block_offset, u32 reg, u32 v) +{ + if (ASIC_IS_DCE8(rdev)) + WREG32(AZ_F0_CODEC_ENDPOINT_INDEX + block_offset, reg); + else + WREG32(AZ_F0_CODEC_ENDPOINT_INDEX + block_offset, + AZ_ENDPOINT_REG_WRITE_EN | AZ_ENDPOINT_REG_INDEX(reg)); + WREG32(AZ_F0_CODEC_ENDPOINT_DATA + block_offset, v); +} + +#define RREG32_ENDPOINT(block, reg) dce6_endpoint_rreg(rdev, (block), (reg)) +#define WREG32_ENDPOINT(block, reg, v) dce6_endpoint_wreg(rdev, (block), (reg), (v)) + + +static void dce6_afmt_get_connected_pins(struct radeon_device *rdev) +{ + int i; + u32 offset, tmp; + + for (i = 0; i < rdev->audio.num_pins; i++) { + offset = rdev->audio.pin[i].offset; + tmp = RREG32_ENDPOINT(offset, + AZ_F0_CODEC_PIN_CONTROL_RESPONSE_CONFIGURATION_DEFAULT); + if (((tmp & PORT_CONNECTIVITY_MASK) >> PORT_CONNECTIVITY_SHIFT) == 1) + rdev->audio.pin[i].connected = false; + else + rdev->audio.pin[i].connected = true; + } +} + +struct r600_audio_pin *dce6_audio_get_pin(struct radeon_device *rdev) +{ + int i; + + dce6_afmt_get_connected_pins(rdev); + + for (i = 0; i < rdev->audio.num_pins; i++) { + if (rdev->audio.pin[i].connected) + return &rdev->audio.pin[i]; + } + DRM_ERROR("No connected audio pins found!\n"); + return NULL; +} + +void dce6_afmt_select_pin(struct drm_encoder *encoder) +{ + 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; + u32 offset = dig->afmt->offset; + u32 id = dig->afmt->pin->id; + + if (!dig->afmt->pin) + return; + + WREG32(AFMT_AUDIO_SRC_CONTROL + offset, AFMT_AUDIO_SRC_SELECT(id)); +} + +void dce6_afmt_write_sad_regs(struct drm_encoder *encoder) +{ + 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; + u32 offset, tmp; + struct drm_connector *connector; + struct radeon_connector *radeon_connector = NULL; + struct cea_sad *sads; + int i, sad_count, sadb_count; + u8 *sadb; + + static const u16 eld_reg_to_type[][2] = { + { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR0, HDMI_AUDIO_CODING_TYPE_PCM }, + { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR1, HDMI_AUDIO_CODING_TYPE_AC3 }, + { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR2, HDMI_AUDIO_CODING_TYPE_MPEG1 }, + { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR3, HDMI_AUDIO_CODING_TYPE_MP3 }, + { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR4, HDMI_AUDIO_CODING_TYPE_MPEG2 }, + { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR5, HDMI_AUDIO_CODING_TYPE_AAC_LC }, + { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR6, HDMI_AUDIO_CODING_TYPE_DTS }, + { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR7, HDMI_AUDIO_CODING_TYPE_ATRAC }, + { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR9, HDMI_AUDIO_CODING_TYPE_EAC3 }, + { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR10, HDMI_AUDIO_CODING_TYPE_DTS_HD }, + { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR11, HDMI_AUDIO_CODING_TYPE_MLP }, + { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR13, HDMI_AUDIO_CODING_TYPE_WMA_PRO }, + }; + + if (!dig->afmt->pin) + return; + + offset = dig->afmt->pin->offset; + + 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); + + sadb_count = drm_edid_to_speaker_allocation(radeon_connector->edid, &sadb); + if (sadb_count < 0) { + DRM_ERROR("Couldn't read Speaker Allocation Data Block: %d\n", sadb_count); + return; + } + + /* program the speaker allocation */ + tmp = RREG32_ENDPOINT(offset, AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER); + tmp &= ~(DP_CONNECTION | SPEAKER_ALLOCATION_MASK); + /* set HDMI mode */ + tmp |= HDMI_CONNECTION; + if (sadb_count) + tmp |= SPEAKER_ALLOCATION(sadb[0]); + else + tmp |= SPEAKER_ALLOCATION(5); /* stereo */ + WREG32_ENDPOINT(offset, AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER, tmp); + + 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_ENDPOINT(offset, eld_reg_to_type[i][0], value); + } + + kfree(sads); + kfree(sadb); +} + +static int dce6_audio_chipset_supported(struct radeon_device *rdev) +{ + return !ASIC_IS_NODCE(rdev); +} + +static void dce6_audio_enable(struct radeon_device *rdev, + struct r600_audio_pin *pin, + bool enable) +{ + WREG32_ENDPOINT(pin->offset, AZ_F0_CODEC_PIN_CONTROL_HOTPLUG_CONTROL, + AUDIO_ENABLED); + DRM_INFO("%s audio %d support\n", enable ? "Enabling" : "Disabling", pin->id); +} + +static const u32 pin_offsets[7] = +{ + (0x5e00 - 0x5e00), + (0x5e18 - 0x5e00), + (0x5e30 - 0x5e00), + (0x5e48 - 0x5e00), + (0x5e60 - 0x5e00), + (0x5e78 - 0x5e00), + (0x5e90 - 0x5e00), +}; + +int dce6_audio_init(struct radeon_device *rdev) +{ + int i; + + if (!radeon_audio || !dce6_audio_chipset_supported(rdev)) + return 0; + + rdev->audio.enabled = true; + + if (ASIC_IS_DCE8(rdev)) + rdev->audio.num_pins = 7; + else + rdev->audio.num_pins = 6; + + 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; + dce6_audio_enable(rdev, &rdev->audio.pin[i], true); + } + + return 0; +} + +void dce6_audio_fini(struct radeon_device *rdev) +{ + int i; + + if (!rdev->audio.enabled) + return; + + for (i = 0; i < rdev->audio.num_pins; i++) + dce6_audio_enable(rdev, &rdev->audio.pin[i], false); + + rdev->audio.enabled = false; +} |