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Kernel: Implement volume control to audio drivers

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Bananymous
2026-04-02 15:14:27 +03:00
parent 85f61aded5
commit 5647cf24d2
9 changed files with 166 additions and 20 deletions
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11
userspace/libraries/LibC/include/sys/ioctl.h
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@@ -5,6 +5,8 @@
__BEGIN_DECLS
#include <stdint.h>
#define I_ATMARK 1
#define I_CANPUT 2
#define I_CKBAND 3
@@ -50,6 +52,13 @@ struct winsize
#define TIOCGWINSZ 50
#define TIOCSWINSZ 51
struct snd_volume_info
{
int32_t min_mdB;
int32_t max_mdB;
int32_t step_mdB;
int32_t mdB;
};
#define SND_GET_CHANNELS 60 /* stores number of channels to uint32_t argument */
#define SND_GET_SAMPLE_RATE 61 /* stores sample rate to uint32_t argument */
#define SND_RESET_BUFFER 62 /* stores the size of internal buffer to uint32_t argument and clears the buffer */
@@ -57,6 +66,8 @@ struct winsize
#define SND_GET_TOTAL_PINS 64 /* gets the number of pins on the current device as uint32_t */
#define SND_GET_PIN 65 /* gets the currently active pin as uint32_t */
#define SND_SET_PIN 66 /* sets the currently active pin to uint32_t */
#define SND_GET_VOLUME_INFO 67 /* gets the current volume as snd_volume_info */
#define SND_SET_VOLUME_MDB 68 /* sets the current volume to int32_t dB */
#define JOYSTICK_GET_LEDS 80 /* get controller led bitmap to uint8_t argument */
#define JOYSTICK_SET_LEDS 81 /* set controller leds to uint8_t bitmap */