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Implement steam deck HIDAPI initialization.

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This commit is contained in:
Max Maisel 2023-09-07 17:12:33 +02:00 committed by Sam Lantinga
parent e7f03de468
commit 5718ba253f
1 changed files with 43 additions and 2 deletions
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43
src/joystick/hidapi/SDL_hidapi_steamdeck.c
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@ -32,6 +32,11 @@
#include <stdint.h>
typedef struct
{
Uint32 update_rate_us;
} SDL_DriverSteamDeck_Context;
/*****************************************************************************************************/
static void HIDAPI_DriverSteamDeck_RegisterHints(SDL_HintCallback callback, void *userdata)
@ -67,7 +72,31 @@ static SDL_bool HIDAPI_DriverSteamDeck_IsSupportedDevice(
static SDL_bool HIDAPI_DriverSteamDeck_InitDevice(SDL_HIDAPI_Device *device)
{
int size;
Uint8 data[64];
SDL_DriverSteamDeck_Context *ctx;
ctx = (SDL_DriverSteamDeck_Context *)SDL_calloc(1, sizeof(*ctx));
if (ctx == NULL) {
SDL_OutOfMemory();
return SDL_FALSE;
}
// Always 1kHz according to USB descriptor
ctx->update_rate_us = 1000;
device->context = ctx;
// Read a report to see if this is the correct endpoint.
// Mouse, Keyboard and Controller have the same VID/PID but
// only the controller hidraw device receives hid reports.
size = SDL_hid_read_timeout(device->dev, data, sizeof(data), 16);
if (size == 0)
return SDL_FALSE;
HIDAPI_SetDeviceName(device, "Steam Deck");
return HIDAPI_JoystickConnected(device, NULL);
}
static int HIDAPI_DriverSteamDeck_GetDevicePlayerIndex(SDL_HIDAPI_Device *device, SDL_JoystickID instance_id)
@ -86,7 +115,19 @@ static SDL_bool HIDAPI_DriverSteamDeck_UpdateDevice(SDL_HIDAPI_Device *device)
static SDL_bool HIDAPI_DriverSteamDeck_OpenJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick)
{
return SDL_FALSE;
SDL_DriverSteamDeck_Context *ctx = (SDL_DriverSteamDeck_Context *)device->context;
float update_rate_in_hz = 1.0f / (float)(ctx->update_rate_us) * 1.0e6f;
SDL_AssertJoysticksLocked();
// Initialize the joystick capabilities
joystick->nbuttons = 20;
joystick->naxes = SDL_CONTROLLER_AXIS_MAX;
SDL_PrivateJoystickAddSensor(joystick, SDL_SENSOR_GYRO, update_rate_in_hz);
SDL_PrivateJoystickAddSensor(joystick, SDL_SENSOR_ACCEL, update_rate_in_hz);
return SDL_TRUE;
}
static int HIDAPI_DriverSteamDeck_RumbleJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble)