diff options
Diffstat (limited to 'kernel/include/drm/i915_component.h')
| -rw-r--r-- | kernel/include/drm/i915_component.h | 52 |
1 files changed, 46 insertions, 6 deletions
diff --git a/kernel/include/drm/i915_component.h b/kernel/include/drm/i915_component.h index 3e2f22e5b..30d89e0da 100644 --- a/kernel/include/drm/i915_component.h +++ b/kernel/include/drm/i915_component.h @@ -24,15 +24,55 @@ #ifndef _I915_COMPONENT_H_ #define _I915_COMPONENT_H_ +/* MAX_PORT is the number of port + * It must be sync with I915_MAX_PORTS defined i915_drv.h + * 5 should be enough as only HSW, BDW, SKL need such fix. + */ +#define MAX_PORTS 5 + +/** + * struct i915_audio_component_ops - callbacks defined in gfx driver + * @owner: the module owner + * @get_power: get the POWER_DOMAIN_AUDIO power well + * @put_power: put the POWER_DOMAIN_AUDIO power well + * @codec_wake_override: Enable/Disable generating the codec wake signal + * @get_cdclk_freq: get the Core Display Clock in KHz + * @sync_audio_rate: set n/cts based on the sample rate + */ +struct i915_audio_component_ops { + struct module *owner; + void (*get_power)(struct device *); + void (*put_power)(struct device *); + void (*codec_wake_override)(struct device *, bool enable); + int (*get_cdclk_freq)(struct device *); + int (*sync_audio_rate)(struct device *, int port, int rate); +}; + +struct i915_audio_component_audio_ops { + void *audio_ptr; + /** + * Call from i915 driver, notifying the HDA driver that + * pin sense and/or ELD information has changed. + * @audio_ptr: HDA driver object + * @port: Which port has changed (PORTA / PORTB / PORTC etc) + */ + void (*pin_eld_notify)(void *audio_ptr, int port); +}; + +/** + * struct i915_audio_component - used for audio video interaction + * @dev: the device from gfx driver + * @aud_sample_rate: the array of audio sample rate per port + * @ops: callback for audio driver calling + * @audio_ops: Call from i915 driver + */ struct i915_audio_component { struct device *dev; + int aud_sample_rate[MAX_PORTS]; + + const struct i915_audio_component_ops *ops; - const struct i915_audio_component_ops { - struct module *owner; - void (*get_power)(struct device *); - void (*put_power)(struct device *); - int (*get_cdclk_freq)(struct device *); - } *ops; + const struct i915_audio_component_audio_ops *audio_ops; }; #endif /* _I915_COMPONENT_H_ */ |