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Wait 3ms for i2c reads/writes to workaround N3DS MCU bugs

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Hikari-chin 2017-06-14 00:18:44 +00:00 committed by d0k3
parent dedf0f8327
commit 093438413b
1 changed files with 10 additions and 0 deletions
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10
source/common/i2c.c
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@ -1,5 +1,7 @@
#include "i2c.h" #include "i2c.h"
void wait(u64 amount);
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
static const struct { u8 bus_id, reg_addr; } dev_data[] = { static const struct { u8 bus_id, reg_addr; } dev_data[] = {
@ -93,6 +95,9 @@ u8 i2cReadRegister(u8 dev_id, u8 reg) {
*i2cGetCntReg(bus_id) = 0xC5; *i2cGetCntReg(bus_id) = 0xC5;
i2cWaitBusy(bus_id); i2cWaitBusy(bus_id);
} }
wait(3ULL);
return 0xff; return 0xff;
} }
@ -125,6 +130,9 @@ bool i2cReadRegisterBuffer(unsigned int dev_id, int reg, u8* buffer, size_t buf_
*i2cGetCntReg(bus_id) = 0xE1; *i2cGetCntReg(bus_id) = 0xE1;
i2cWaitBusy(bus_id); i2cWaitBusy(bus_id);
buffer[buf_size - 1] = *i2cGetDataReg(bus_id); buffer[buf_size - 1] = *i2cGetDataReg(bus_id);
wait(3ULL);
return true; return true;
} }
@ -145,5 +153,7 @@ bool i2cWriteRegister(u8 dev_id, u8 reg, u8 data) {
i2cWaitBusy(bus_id); i2cWaitBusy(bus_id);
} }
wait(3ULL);
return false; return false;
} }