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[2.0.x] Buffer overflow and scroll fix, UTF8 cleanup (#10844)

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This commit is contained in:
Eduardo José Tagle
2018-05-26 01:32:37 -03:00
committed by Scott Lahteine
parent 235facd545
commit 6f330f397e
17 changed files with 413 additions and 671 deletions
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28
Marlin/src/HAL/HAL_AVR/HAL_spi_AVR.cpp
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@ -162,22 +162,15 @@ void spiBegin (void) {
// away. When clock is not known, use a loop instead, which generates
// shorter code.
if (__builtin_constant_p(spiClock)) {
if (spiClock >= F_CPU / 2) {
clockDiv = 0;
} else if (spiClock >= F_CPU / 4) {
clockDiv = 1;
} else if (spiClock >= F_CPU / 8) {
clockDiv = 2;
} else if (spiClock >= F_CPU / 16) {
clockDiv = 3;
} else if (spiClock >= F_CPU / 32) {
clockDiv = 4;
} else if (spiClock >= F_CPU / 64) {
clockDiv = 5;
} else {
clockDiv = 6;
}
} else {
if (spiClock >= F_CPU / 2) clockDiv = 0;
else if (spiClock >= F_CPU / 4) clockDiv = 1;
else if (spiClock >= F_CPU / 8) clockDiv = 2;
else if (spiClock >= F_CPU / 16) clockDiv = 3;
else if (spiClock >= F_CPU / 32) clockDiv = 4;
else if (spiClock >= F_CPU / 64) clockDiv = 5;
else clockDiv = 6;
}
else {
uint32_t clockSetting = F_CPU / 2;
clockDiv = 0;
while (clockDiv < 6 && spiClock < clockSetting) {
@ -187,8 +180,7 @@ void spiBegin (void) {
}
// Compensate for the duplicate fosc/64
if (clockDiv == 6)
clockDiv = 7;
if (clockDiv == 6) clockDiv = 7;
// Invert the SPI2X bit
clockDiv ^= 0x1;