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Fix lower cpi bound on PMW33XX (#22108)

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Glen D'souza 2023-09-24 03:53:15 +05:30 committed by GitHub
parent c9810facce
commit 9c340077f6
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 3 additions and 3 deletions
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2
drivers/sensors/pmw3320.c
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@ -178,7 +178,7 @@ uint16_t pmw3320_get_cpi(void) {
} }
void pmw3320_set_cpi(uint16_t cpi) { void pmw3320_set_cpi(uint16_t cpi) {
uint8_t cpival = constrain((cpi / PMW3320_CPI_STEP) - 1U, 0, (PMW3320_CPI_MAX / PMW3320_CPI_STEP) - 1U); uint8_t cpival = constrain((cpi / PMW3320_CPI_STEP), (PMW3320_CPI_MIN / PMW3320_CPI_STEP), (PMW3320_CPI_MAX / PMW3320_CPI_STEP)) - 1U;
// Fifth bit is probably a control bit. // Fifth bit is probably a control bit.
// PMW3320 datasheet don't have any info on this, so this is a pure guess. // PMW3320 datasheet don't have any info on this, so this is a pure guess.
pmw3320_write_reg(REG_Resolution, 0x20 | cpival); pmw3320_write_reg(REG_Resolution, 0x20 | cpival);

2
drivers/sensors/pmw3360.c
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@ -23,7 +23,7 @@ void pmw33xx_set_cpi(uint8_t sensor, uint16_t cpi) {
return; return;
} }
uint8_t cpival = CONSTRAIN((cpi / PMW33XX_CPI_STEP) - 1, 0, (PMW33XX_CPI_MAX / PMW33XX_CPI_STEP) - 1U); uint8_t cpival = CONSTRAIN((cpi / PMW33XX_CPI_STEP), (PMW33XX_CPI_MIN / PMW33XX_CPI_STEP), (PMW33XX_CPI_MAX / PMW33XX_CPI_STEP)) - 1U;
pmw33xx_write(sensor, REG_Config1, cpival); pmw33xx_write(sensor, REG_Config1, cpival);
} }

2
drivers/sensors/pmw3389.c
View file

@ -22,7 +22,7 @@ void pmw33xx_set_cpi(uint8_t sensor, uint16_t cpi) {
return; return;
} }
uint16_t cpival = CONSTRAIN((cpi / PMW33XX_CPI_STEP) - 1, 0, (PMW33XX_CPI_MAX / PMW33XX_CPI_STEP) - 1U); uint16_t cpival = CONSTRAIN((cpi / PMW33XX_CPI_STEP), (PMW33XX_CPI_MIN / PMW33XX_CPI_STEP), (PMW33XX_CPI_MAX / PMW33XX_CPI_STEP)) - 1U;
// Sets upper byte first for more consistent setting of cpi // Sets upper byte first for more consistent setting of cpi
pmw33xx_write(sensor, REG_Resolution_H, (cpival >> 8) & 0xFF); pmw33xx_write(sensor, REG_Resolution_H, (cpival >> 8) & 0xFF);
pmw33xx_write(sensor, REG_Resolution_L, cpival & 0xFF); pmw33xx_write(sensor, REG_Resolution_L, cpival & 0xFF);