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path: root/drivers/lcd/hd44780.c
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Diffstat (limited to 'drivers/lcd/hd44780.c')
-rw-r--r--drivers/lcd/hd44780.c48
1 files changed, 24 insertions, 24 deletions
diff --git a/drivers/lcd/hd44780.c b/drivers/lcd/hd44780.c
index ccc50117ab..9b4e2f0226 100644
--- a/drivers/lcd/hd44780.c
+++ b/drivers/lcd/hd44780.c
@@ -57,67 +57,67 @@ static const pin_t data_pins[4] = HD44780_DATA_PINS;
#define HD44780_ENABLE_DELAY_US 1
static void hd44780_latch(void) {
- writePinHigh(HD44780_E_PIN);
+ gpio_write_pin_high(HD44780_E_PIN);
wait_us(HD44780_ENABLE_DELAY_US);
- writePinLow(HD44780_E_PIN);
+ gpio_write_pin_low(HD44780_E_PIN);
}
void hd44780_write(uint8_t data, bool isData) {
- writePin(HD44780_RS_PIN, isData);
- writePinLow(HD44780_RW_PIN);
+ gpio_write_pin(HD44780_RS_PIN, isData);
+ gpio_write_pin_low(HD44780_RW_PIN);
for (int i = 0; i < 4; i++) {
- setPinOutput(data_pins[i]);
+ gpio_set_pin_output(data_pins[i]);
}
// Write high nibble
for (int i = 0; i < 4; i++) {
- writePin(data_pins[i], (data >> 4) & (1 << i));
+ gpio_write_pin(data_pins[i], (data >> 4) & (1 << i));
}
hd44780_latch();
// Write low nibble
for (int i = 0; i < 4; i++) {
- writePin(data_pins[i], data & (1 << i));
+ gpio_write_pin(data_pins[i], data & (1 << i));
}
hd44780_latch();
for (int i = 0; i < 4; i++) {
- writePinHigh(data_pins[i]);
+ gpio_write_pin_high(data_pins[i]);
}
}
uint8_t hd44780_read(bool isData) {
uint8_t data = 0;
- writePin(HD44780_RS_PIN, isData);
- writePinHigh(HD44780_RW_PIN);
+ gpio_write_pin(HD44780_RS_PIN, isData);
+ gpio_write_pin_high(HD44780_RW_PIN);
for (int i = 0; i < 4; i++) {
- setPinInput(data_pins[i]);
+ gpio_set_pin_input(data_pins[i]);
}
- writePinHigh(HD44780_E_PIN);
+ gpio_write_pin_high(HD44780_E_PIN);
wait_us(HD44780_ENABLE_DELAY_US);
// Read high nibble
for (int i = 0; i < 4; i++) {
- data |= (readPin(data_pins[i]) << i);
+ data |= (gpio_read_pin(data_pins[i]) << i);
}
data <<= 4;
- writePinLow(HD44780_E_PIN);
+ gpio_write_pin_low(HD44780_E_PIN);
wait_us(HD44780_ENABLE_DELAY_US);
- writePinHigh(HD44780_E_PIN);
+ gpio_write_pin_high(HD44780_E_PIN);
wait_us(HD44780_ENABLE_DELAY_US);
// Read low nibble
for (int i = 0; i < 4; i++) {
- data |= (readPin(data_pins[i]) << i);
+ data |= (gpio_read_pin(data_pins[i]) << i);
}
- writePinLow(HD44780_E_PIN);
+ gpio_write_pin_low(HD44780_E_PIN);
return data;
}
@@ -171,20 +171,20 @@ void hd44780_set_ddram_address(uint8_t address) {
}
void hd44780_init(bool cursor, bool blink) {
- setPinOutput(HD44780_RS_PIN);
- setPinOutput(HD44780_RW_PIN);
- setPinOutput(HD44780_E_PIN);
+ gpio_set_pin_output(HD44780_RS_PIN);
+ gpio_set_pin_output(HD44780_RW_PIN);
+ gpio_set_pin_output(HD44780_E_PIN);
for (int i = 0; i < 4; i++) {
- setPinOutput(data_pins[i]);
+ gpio_set_pin_output(data_pins[i]);
}
wait_ms(HD44780_INIT_DELAY_MS);
// Manually configure for 4-bit mode - can't use hd44780_command() yet
// HD44780U datasheet, Fig. 24 (p46)
- writePinHigh(data_pins[0]); // Function set
- writePinHigh(data_pins[1]); // DL = 1
+ gpio_write_pin_high(data_pins[0]); // Function set
+ gpio_write_pin_high(data_pins[1]); // DL = 1
hd44780_latch();
wait_ms(5);
// Send again
@@ -194,7 +194,7 @@ void hd44780_init(bool cursor, bool blink) {
hd44780_latch();
wait_us(64);
- writePinLow(data_pins[0]); // DL = 0
+ gpio_write_pin_low(data_pins[0]); // DL = 0
hd44780_latch();
wait_us(64);