Files
linux/drivers/gpu/drm/radeon/radeon_audio.h
Alex Deucher 6f9dbb525a drm/radeon: rework audio detect (v4)
commit d0ea397e22 upstream.

1. Always assign audio function pointers even if the display does
not support audio.  We need to properly disable the audio stream
when when using a non-audio capable monitor.  Fixes purple line
on some hdmi monitors.

2. Check if a pin is in use by another encoder before disabling
it.

v2: make sure we've fetched the edid before checking audio and
    look up the encoder before calling audio_detect since
    connector->encoder may not be assigned yet.  Separate
    pin and afmt.  They are allocated at different times and
    have no dependency on eachother.
v3: fix connector fetching in encoder functions
v4: fix missed dig->pin check in dce6_afmt_write_latency_fields

bugs:
https://bugzilla.kernel.org/show_bug.cgi?id=93701
https://bugzilla.redhat.com/show_bug.cgi?id=1236337
https://bugs.freedesktop.org/show_bug.cgi?id=91041

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-16 20:52:09 -07:00

84 lines
3.5 KiB
C

/*
* Copyright 2014 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.
*
* Authors: Slava Grigorev <slava.grigorev@amd.com>
*/
#ifndef __RADEON_AUDIO_H__
#define __RADEON_AUDIO_H__
#include <linux/types.h>
#define RREG32_ENDPOINT(block, reg) \
radeon_audio_endpoint_rreg(rdev, (block), (reg))
#define WREG32_ENDPOINT(block, reg, v) \
radeon_audio_endpoint_wreg(rdev, (block), (reg), (v))
struct radeon_audio_basic_funcs
{
u32 (*endpoint_rreg)(struct radeon_device *rdev, u32 offset, u32 reg);
void (*endpoint_wreg)(struct radeon_device *rdev,
u32 offset, u32 reg, u32 v);
void (*enable)(struct radeon_device *rdev,
struct r600_audio_pin *pin, u8 enable_mask);
};
struct radeon_audio_funcs
{
void (*select_pin)(struct drm_encoder *encoder);
struct r600_audio_pin* (*get_pin)(struct radeon_device *rdev);
void (*write_latency_fields)(struct drm_encoder *encoder,
struct drm_connector *connector, struct drm_display_mode *mode);
void (*write_sad_regs)(struct drm_encoder *encoder,
struct cea_sad *sads, int sad_count);
void (*write_speaker_allocation)(struct drm_encoder *encoder,
u8 *sadb, int sad_count);
void (*set_dto)(struct radeon_device *rdev,
struct radeon_crtc *crtc, unsigned int clock);
void (*update_acr)(struct drm_encoder *encoder, long offset,
const struct radeon_hdmi_acr *acr);
void (*set_vbi_packet)(struct drm_encoder *encoder, u32 offset);
void (*set_color_depth)(struct drm_encoder *encoder, u32 offset, int bpc);
void (*set_avi_packet)(struct radeon_device *rdev, u32 offset,
unsigned char *buffer, size_t size);
void (*set_audio_packet)(struct drm_encoder *encoder, u32 offset);
void (*set_mute)(struct drm_encoder *encoder, u32 offset, bool mute);
void (*mode_set)(struct drm_encoder *encoder,
struct drm_display_mode *mode);
void (*dpms)(struct drm_encoder *encoder, bool mode);
};
int radeon_audio_init(struct radeon_device *rdev);
void radeon_audio_detect(struct drm_connector *connector,
struct drm_encoder *encoder,
enum drm_connector_status status);
u32 radeon_audio_endpoint_rreg(struct radeon_device *rdev,
u32 offset, u32 reg);
void radeon_audio_endpoint_wreg(struct radeon_device *rdev,
u32 offset, u32 reg, u32 v);
struct r600_audio_pin *radeon_audio_get_pin(struct drm_encoder *encoder);
void radeon_audio_fini(struct radeon_device *rdev);
void radeon_audio_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode);
void radeon_audio_dpms(struct drm_encoder *encoder, int mode);
#endif