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drivers: analog: include: Update LDO and bandgap calibration values #136

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drivers: analog: include: Update LDO and bandgap calibration values #136

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36 changes: 24 additions & 12 deletions drivers/analog/include/analog_ctrl.h
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Original file line number Diff line number Diff line change
Expand Up @@ -66,20 +66,22 @@ extern "C" {
* 0000: 1.6 V
* 0001: 1.62 V
* ...
* 1010: 1.8 V
* 1000: 1.76 V
* 1010: 1.80 V
* 1111: 1.9 V
* Step: 20 mV Default (0xA)
* Step: 20 mV Default (0x8)
*/
#define ANA_PERIPH_LDO_CONT (0xAU << 6)
#define ANA_PERIPH_LDO_CONT (0x8U << 6)

/* Calibration for analog peripherals precision bandgap:
* 0000: 1.140 V
* ...
* 1000: 1.188 V
* 1010: 1.2 V
* 1111: 1.233 V
* Step: 6 mV Default (0xA)
* Step: 6 mV Default (0x8)
*/
#define ANA_PERIPH_BG_CONT (0xAU << 1)
#define ANA_PERIPH_BG_CONT (0x8U << 1)

#define CMP_CTRL_CMP0_CLKEN (1U << 0U) /* Enable CMP0 clock */

Expand All @@ -89,7 +91,9 @@ extern "C" {

#define DAC12_REF_VAL (DAC12_VREF_CONT | ADC_VREF_BUF_EN | ADC_VREF_BUF_RDIV_EN)

#define ADC_REF_VAL (ADC_VREF_BUF_RDIV_EN | ADC_VREF_BUF_EN | ADC_VREF_CONT)
#define ADC_REF_VAL (ADC_VREF_BUF_RDIV_EN | ADC_VREF_BUF_EN | ADC_VREF_CONT)

#define ANA_PERIPH_LDO_BG_CONT_VAL (ANA_PERIPH_LDO_CONT | ANA_PERIPH_BG_CONT)

extern uint32_t analog_ldo_ref_cnt;
extern uint32_t adc_vref_cnt;
Expand Down Expand Up @@ -271,22 +275,27 @@ static inline void disable_dac12_ref_voltage_alias_mode(uintptr_t cmp_reg2, uint
*/
static inline void enable_adc_ref_voltage(uintptr_t cmp_reg2)
{
REG(cmp_reg2) |= ADC_REF_VAL;
REG(cmp_reg2) = (REG(cmp_reg2) & ~((0xFU << 6) | (0xFU << 1))) |
ADC_REF_VAL | ANA_PERIPH_LDO_BG_CONT_VAL;
adc_vref_cnt++;
}

/**
* @fn void enable_adc_ref_voltage_alias_mode(uintptr_t adc_vref_base)
* @fn void enable_adc_ref_voltage_alias_mode(uintptr_t adc_vref_base,
* uintptr_t cmp_reg2)
* @brief Enable ADC reference voltage (aliasing mode).
* Configures the ADC VREF register to enable the
* reference divider, turn on the VREF buffer, and set the
* appropriate control level for the ADC reference voltage.
* @param[in] adc_vref_base Base address of the ADC VREF register.
* @param[in] cmp_reg2 Base address of the comparator control register.
* @return none
*/
static inline void enable_adc_ref_voltage_alias_mode(uintptr_t adc_vref_base)
static inline void enable_adc_ref_voltage_alias_mode(uintptr_t adc_vref_base, uintptr_t cmp_reg2)
{
REG(adc_vref_base) |= ADC_REF_VAL;
REG(cmp_reg2) = (REG(cmp_reg2) & ~((0xFU << 6) | (0xFU << 1))) |
ANA_PERIPH_LDO_BG_CONT_VAL;
adc_vref_cnt++;
}

Expand All @@ -301,22 +310,25 @@ static inline void disable_adc_ref_voltage(uintptr_t cmp_reg2)
{
adc_vref_cnt--;
if (adc_vref_cnt == 0) {
REG(cmp_reg2) &= ~ADC_REF_VAL;
REG(cmp_reg2) &= ~(ADC_REF_VAL | ANA_PERIPH_LDO_BG_CONT_VAL);
}
}

/**
* @fn void disable_adc_ref_voltage_alias_mode(uintptr_t adc_vref_base)
* @fn void disable_adc_ref_voltage_alias_mode(uintptr_t adc_vref_base,
* uintptr_t cmp_reg2)
* @brief Disable the reference divider, VREF buffer,
* and ADC reference voltage (aliasing mode).
* @param[in] adc_vref_base Base address of the ADC VREF register.
* @param[in] cmp_reg2 Base address of the comparator control register.
* @return none
*/
static inline void disable_adc_ref_voltage_alias_mode(uintptr_t adc_vref_base)
static inline void disable_adc_ref_voltage_alias_mode(uintptr_t adc_vref_base, uintptr_t cmp_reg2)
{
adc_vref_cnt--;
if (adc_vref_cnt == 0) {
REG(adc_vref_base) &= ~ADC_REF_VAL;
REG(cmp_reg2) &= ~ANA_PERIPH_LDO_BG_CONT_VAL;
}
}

Expand Down