| 0,0 → 1,267 |
|---|
| /* |
| * 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_RV710) |
| || 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); |
| } |