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onewire: Implement scan for multiple devices #139

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merged 6 commits into from
Sep 28, 2022
Merged

onewire: Implement scan for multiple devices #139

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3261efb
onewire: Implement `scan` for multiple devices
jbglaw Sep 27, 2022
2799fcd
Reformat code
jbglaw Sep 27, 2022
74a3033
Rework "int search_result" to proper "bool device_found_p"
jbglaw Sep 27, 2022
52b2715
Add a comment to reference the bus scanning application note
jbglaw Sep 27, 2022
5fe82c2
Another missed whitespace
jbglaw Sep 27, 2022
263eba3
Fix missed variable rename
jbglaw Sep 28, 2022
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Reformat code 
The file was given to `astyle -t --style=linux --lineend=linux hydrabus_mode_onewire.c`.
However, the crc constants array was left untouched to keep the commas aligned.
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@jbglaw
jbglaw committed Sep 27, 2022
commit 2799fcd64cf1ea9fa87485338f86f3a09deab6ae
22 changes: 11 additions & 11 deletions src/hydrabus/hydrabus_mode_onewire.c
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Original file line number Diff line number Diff line change
Expand Up @@ -67,21 +67,21 @@ static void show_params(t_hydra_console *con)
mode_config_proto_t* proto = &con->mode->proto;

cprintf(con, "Device: onewire%d\r\nGPIO resistor: %s\r\n",
proto->dev_num + 1,
proto->config.onewire.dev_gpio_pull == MODE_CONFIG_DEV_GPIO_PULLUP ? "pull-up" :
proto->config.onewire.dev_gpio_pull == MODE_CONFIG_DEV_GPIO_PULLDOWN ? "pull-down" :
"floating");
proto->dev_num + 1,
proto->config.onewire.dev_gpio_pull == MODE_CONFIG_DEV_GPIO_PULLUP ? "pull-up" :
proto->config.onewire.dev_gpio_pull == MODE_CONFIG_DEV_GPIO_PULLDOWN ? "pull-down" :
"floating");

cprintf(con, "Bit order: %s first\r\n",
proto->config.onewire.dev_bit_lsb_msb == DEV_FIRSTBIT_MSB ? "MSB" : "LSB");
proto->config.onewire.dev_bit_lsb_msb == DEV_FIRSTBIT_MSB ? "MSB" : "LSB");
}

bool onewire_pin_init(t_hydra_console *con)
{
mode_config_proto_t* proto = &con->mode->proto;

bsp_gpio_init(BSP_GPIO_PORTB, ONEWIRE_PIN,
proto->config.onewire.dev_gpio_mode, proto->config.onewire.dev_gpio_pull);
proto->config.onewire.dev_gpio_mode, proto->config.onewire.dev_gpio_pull);
return true;
}

Expand Down Expand Up @@ -111,11 +111,11 @@ void onewire_write_bit(t_hydra_console *con, uint8_t bit)
{
onewire_mode_output(con);
onewire_low();
if(bit){
if(bit) {
DelayUs(6);
onewire_high();
DelayUs(64);
}else{
} else {
DelayUs(60);
onewire_high();
DelayUs(10);
Expand Down Expand Up @@ -434,7 +434,7 @@ static uint32_t write(t_hydra_console *con, uint8_t *tx_data, uint8_t nb_data)
cprintf(con, hydrabus_mode_str_mul_write);
for(i = 0; i < nb_data; i++) {
cprintf(con, hydrabus_mode_str_mul_value_u8,
tx_data[i]);
tx_data[i]);
}
cprintf(con, hydrabus_mode_str_mul_br);
}
Expand All @@ -456,7 +456,7 @@ static uint32_t read(t_hydra_console *con, uint8_t *rx_data, uint8_t nb_data)
cprintf(con, hydrabus_mode_str_mul_read);
for(i = 0; i < nb_data; i++) {
cprintf(con, hydrabus_mode_str_mul_value_u8,
rx_data[i]);
rx_data[i]);
}
cprintf(con, hydrabus_mode_str_mul_br);
}
Expand All @@ -468,7 +468,7 @@ static uint32_t dump(t_hydra_console *con, uint8_t *rx_data, uint8_t nb_data)
uint8_t i;

i = 0;
while(i < nb_data){
while(i < nb_data) {
rx_data[i] = onewire_read_u8(con);
i++;
}
Expand Down