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drivers/ninaw10: Add support for external ADC channels. 

Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
This commit is contained in:
iabdalkader 2023-10-17 12:32:45 +02:00 committed by Damien George
parent 7bbf7910fe
commit 4358faab0c
1 changed files with 33 additions and 3 deletions
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36
drivers/ninaw10/machine_pin_nina.c
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@ -42,9 +42,13 @@
#define NINA_GPIO_MODE (0x50)
#define NINA_GPIO_READ (0x53)
#define NINA_GPIO_READ_ANALOG (0x54)
#define NINA_GPIO_WRITE (0x51)
#define NINA_GPIO_IS_INPUT_ONLY(p) ((p >= 34 && p <= 36) || (p == 39))
#define NINA_GPIO_IS_INPUT_ONLY(p) ((p >= 3 && p <= 6))
#define NINA_GPIO_IS_ADC_CHANNEL(p) ((p >= 3 && p <= 6))
// This maps logical pin ID (0..MICROPY_HW_PIN_EXT_COUNT) to
// physical pins on the Nina module.
static uint8_t pin_map[MICROPY_HW_PIN_EXT_COUNT] = {
27, // LEDR
25, // LEDG
@ -55,10 +59,30 @@ static uint8_t pin_map[MICROPY_HW_PIN_EXT_COUNT] = {
35, // A7
};
// This maps logical pin ID (0..MICROPY_HW_PIN_EXT_COUNT) to
// ADC channel numbers on the Nina module.
static uint8_t adc_map[MICROPY_HW_PIN_EXT_COUNT] = {
-1, // LEDR
-1, // LEDG
-1, // LEDB
6, // A4
3, // A5
0, // A6
7, // A7
};
void machine_pin_ext_init(void) {
nina_init();
}
bool machine_pin_ext_is_adc_channel(const machine_pin_obj_t *self) {
return NINA_GPIO_IS_ADC_CHANNEL(self->id);
}
uint32_t machine_pin_ext_to_adc_channel(const machine_pin_obj_t *self) {
return adc_map[self->id];
}
void machine_pin_ext_set(machine_pin_obj_t *self, bool value) {
if (self->id >= 0 && self->id < MICROPY_HW_PIN_EXT_COUNT) {
uint8_t buf[] = {pin_map[self->id], value};
@ -76,8 +100,14 @@ bool machine_pin_ext_get(machine_pin_obj_t *self) {
return value;
}
uint16_t machine_pin_ext_read_u16(uint32_t channel) {
uint16_t buf = channel;
nina_ioctl(NINA_GPIO_READ_ANALOG, sizeof(buf), (uint8_t *)&buf, 0);
return buf;
}
void machine_pin_ext_config(machine_pin_obj_t *self, int mode, int value) {
if (mode == MACHINE_PIN_MODE_IN) {
if (mode == MACHINE_PIN_MODE_IN || mode == MACHINE_PIN_MODE_ANALOG) {
mode = NINA_GPIO_INPUT;
self->is_output = false;
} else if (mode == MACHINE_PIN_MODE_OUT) {
@ -89,7 +119,7 @@ void machine_pin_ext_config(machine_pin_obj_t *self, int mode, int value) {
if (self->id >= 0 && self->id < MICROPY_HW_PIN_EXT_COUNT) {
uint8_t buf[] = {pin_map[self->id], mode};
if (mode == NINA_GPIO_OUTPUT) {
if (NINA_GPIO_IS_INPUT_ONLY(buf[0])) {
if (NINA_GPIO_IS_INPUT_ONLY(self->id)) {
mp_raise_ValueError("only Pin.IN is supported for this pin");
}
machine_pin_ext_set(self, value);