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hidapi: switch: Add user calibration support

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(cherry picked from commit 9fa55d9cab)
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Narr the Reg 2023-01-09 17:42:17 -06:00 committed by Sam Lantinga
parent 6a52017724
commit fa934dd4df
1 changed files with 66 additions and 23 deletions
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89
src/joystick/hidapi/SDL_hidapi_switch.c
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@ -111,9 +111,13 @@ typedef enum
#define k_unSwitchBluetoothPacketLength k_unSwitchOutputPacketDataLength
#define k_unSwitchUSBPacketLength k_unSwitchMaxOutputPacketLength
#define k_unSPIStickCalibrationStartOffset 0x603D
#define k_unSPIStickCalibrationEndOffset 0x604E
#define k_unSPIStickCalibrationLength (k_unSPIStickCalibrationEndOffset - k_unSPIStickCalibrationStartOffset + 1)
#define k_unSPIStickFactoryCalibrationStartOffset 0x603D
#define k_unSPIStickFactoryCalibrationEndOffset 0x604E
#define k_unSPIStickFactoryCalibrationLength (k_unSPIStickFactoryCalibrationEndOffset - k_unSPIStickFactoryCalibrationStartOffset + 1)
#define k_unSPIStickUserCalibrationStartOffset 0x8010
#define k_unSPIStickUserCalibrationEndOffset 0x8025
#define k_unSPIStickUserCalibrationLength (k_unSPIStickUserCalibrationEndOffset - k_unSPIStickUserCalibrationStartOffset + 1)
#define k_unSPIIMUScaleStartOffset 0x6020
#define k_unSPIIMUScaleEndOffset 0x6037
@ -199,6 +203,22 @@ typedef struct
Uint8 ucFiller2;
Uint8 ucColorLocation;
} deviceInfo;
struct
{
SwitchSPIOpData_t opData;
Uint8 rgucLeftCalibration[9];
Uint8 rgucRightCalibration[9];
} stickFactoryCalibration;
struct
{
SwitchSPIOpData_t opData;
Uint8 rgucLeftMagic[2];
Uint8 rgucLeftCalibration[9];
Uint8 rgucRightMagic[2];
Uint8 rgucRightCalibration[9];
} stickUserCalibration;
};
} SwitchSubcommandInputPacket_t;
@ -708,41 +728,64 @@ static SDL_bool SetIMUEnabled(SDL_DriverSwitch_Context *ctx, SDL_bool enabled)
static SDL_bool LoadStickCalibration(SDL_DriverSwitch_Context *ctx, Uint8 input_mode)
{
Uint8 *pStickCal;
Uint8 *pLeftStickCal;
Uint8 *pRightStickCal;
size_t stick, axis;
SwitchSubcommandInputPacket_t *reply = NULL;
SwitchSubcommandInputPacket_t *user_reply = NULL;
SwitchSubcommandInputPacket_t *factory_reply = NULL;
SwitchSPIOpData_t readUserParams;
SwitchSPIOpData_t readFactoryParams;
/* Read Calibration Info */
SwitchSPIOpData_t readParams;
readParams.unAddress = k_unSPIStickCalibrationStartOffset;
readParams.ucLength = k_unSPIStickCalibrationLength;
/* Read User Calibration Info */
readUserParams.unAddress = k_unSPIStickUserCalibrationStartOffset;
readUserParams.ucLength = k_unSPIStickUserCalibrationLength;
if (!WriteSubcommand(ctx, k_eSwitchSubcommandIDs_SPIFlashRead, (uint8_t *)&readParams, sizeof(readParams), &reply)) {
if (!WriteSubcommand(ctx, k_eSwitchSubcommandIDs_SPIFlashRead, (uint8_t *)&readUserParams, sizeof(readUserParams), &user_reply)) {
return SDL_FALSE;
}
/* Read Factory Calibration Info */
readFactoryParams.unAddress = k_unSPIStickFactoryCalibrationStartOffset;
readFactoryParams.ucLength = k_unSPIStickFactoryCalibrationLength;
if (!WriteSubcommand(ctx, k_eSwitchSubcommandIDs_SPIFlashRead, (uint8_t *)&readFactoryParams, sizeof(readFactoryParams), &factory_reply)) {
return SDL_FALSE;
}
/* Automatically select the user calibration if magic bytes are set */
if (user_reply->stickUserCalibration.rgucLeftMagic[0] == 0xB2 && user_reply->stickUserCalibration.rgucLeftMagic[1] == 0xA1) {
pLeftStickCal = user_reply->stickUserCalibration.rgucLeftCalibration;
} else {
pLeftStickCal = factory_reply->stickFactoryCalibration.rgucLeftCalibration;
}
if (user_reply->stickUserCalibration.rgucRightMagic[0] == 0xB2 && user_reply->stickUserCalibration.rgucRightMagic[1] == 0xA1) {
pRightStickCal = user_reply->stickUserCalibration.rgucRightCalibration;
} else {
pRightStickCal = factory_reply->stickFactoryCalibration.rgucRightCalibration;
}
/* Stick calibration values are 12-bits each and are packed by bit
* For whatever reason the fields are in a different order for each stick
* Left: X-Max, Y-Max, X-Center, Y-Center, X-Min, Y-Min
* Right: X-Center, Y-Center, X-Min, Y-Min, X-Max, Y-Max
*/
pStickCal = reply->spiReadData.rgucReadData;
/* Left stick */
ctx->m_StickCalData[0].axis[0].sMax = ((pStickCal[1] << 8) & 0xF00) | pStickCal[0]; /* X Axis max above center */
ctx->m_StickCalData[0].axis[1].sMax = (pStickCal[2] << 4) | (pStickCal[1] >> 4); /* Y Axis max above center */
ctx->m_StickCalData[0].axis[0].sCenter = ((pStickCal[4] << 8) & 0xF00) | pStickCal[3]; /* X Axis center */
ctx->m_StickCalData[0].axis[1].sCenter = (pStickCal[5] << 4) | (pStickCal[4] >> 4); /* Y Axis center */
ctx->m_StickCalData[0].axis[0].sMin = ((pStickCal[7] << 8) & 0xF00) | pStickCal[6]; /* X Axis min below center */
ctx->m_StickCalData[0].axis[1].sMin = (pStickCal[8] << 4) | (pStickCal[7] >> 4); /* Y Axis min below center */
ctx->m_StickCalData[0].axis[0].sMax = ((pLeftStickCal[1] << 8) & 0xF00) | pLeftStickCal[0]; /* X Axis max above center */
ctx->m_StickCalData[0].axis[1].sMax = (pLeftStickCal[2] << 4) | (pLeftStickCal[1] >> 4); /* Y Axis max above center */
ctx->m_StickCalData[0].axis[0].sCenter = ((pLeftStickCal[4] << 8) & 0xF00) | pLeftStickCal[3]; /* X Axis center */
ctx->m_StickCalData[0].axis[1].sCenter = (pLeftStickCal[5] << 4) | (pLeftStickCal[4] >> 4); /* Y Axis center */
ctx->m_StickCalData[0].axis[0].sMin = ((pLeftStickCal[7] << 8) & 0xF00) | pLeftStickCal[6]; /* X Axis min below center */
ctx->m_StickCalData[0].axis[1].sMin = (pLeftStickCal[8] << 4) | (pLeftStickCal[7] >> 4); /* Y Axis min below center */
/* Right stick */
ctx->m_StickCalData[1].axis[0].sCenter = ((pStickCal[10] << 8) & 0xF00) | pStickCal[9]; /* X Axis center */
ctx->m_StickCalData[1].axis[1].sCenter = (pStickCal[11] << 4) | (pStickCal[10] >> 4); /* Y Axis center */
ctx->m_StickCalData[1].axis[0].sMin = ((pStickCal[13] << 8) & 0xF00) | pStickCal[12]; /* X Axis min below center */
ctx->m_StickCalData[1].axis[1].sMin = (pStickCal[14] << 4) | (pStickCal[13] >> 4); /* Y Axis min below center */
ctx->m_StickCalData[1].axis[0].sMax = ((pStickCal[16] << 8) & 0xF00) | pStickCal[15]; /* X Axis max above center */
ctx->m_StickCalData[1].axis[1].sMax = (pStickCal[17] << 4) | (pStickCal[16] >> 4); /* Y Axis max above center */
ctx->m_StickCalData[1].axis[0].sCenter = ((pRightStickCal[1] << 8) & 0xF00) | pRightStickCal[0]; /* X Axis center */
ctx->m_StickCalData[1].axis[1].sCenter = (pRightStickCal[2] << 4) | (pRightStickCal[1] >> 4); /* Y Axis center */
ctx->m_StickCalData[1].axis[0].sMin = ((pRightStickCal[4] << 8) & 0xF00) | pRightStickCal[3]; /* X Axis min below center */
ctx->m_StickCalData[1].axis[1].sMin = (pRightStickCal[5] << 4) | (pRightStickCal[4] >> 4); /* Y Axis min below center */
ctx->m_StickCalData[1].axis[0].sMax = ((pRightStickCal[7] << 8) & 0xF00) | pRightStickCal[6]; /* X Axis max above center */
ctx->m_StickCalData[1].axis[1].sMax = (pRightStickCal[8] << 4) | (pRightStickCal[7] >> 4); /* Y Axis max above center */
/* Filter out any values that were uninitialized (0xFFF) in the SPI read */
for (stick = 0; stick < 2; ++stick) {