You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
73 lines
1.7 KiB
73 lines
1.7 KiB
7 years ago
|
//
|
||
|
|
// Created by MightyPork on 2018/02/03.
|
||
|
|
//
|
||
|
|
|
||
|
|
#include "platform.h"
|
||
|
|
#include "unit_base.h"
|
||
|
|
|
||
|
|
#define DOUT_INTERNAL
|
||
|
|
#include "_dout_internal.h"
|
||
|
|
#include "_dout_init.h"
|
||
|
|
|
||
|
|
/** Allocate data structure and set defaults */
|
||
|
|
error_t DOut_preInit(Unit *unit)
|
||
|
|
{
|
||
|
|
struct priv *priv = unit->data = calloc_ck(1, sizeof(struct priv));
|
||
|
|
if (priv == NULL) return E_OUT_OF_MEM;
|
||
|
|
|
||
|
|
// some defaults
|
||
|
|
priv->port_name = 'A';
|
||
|
|
priv->pins = 0x0001;
|
||
|
|
priv->open_drain = 0x0000;
|
||
|
|
priv->initial = 0x0000;
|
||
|
|
|
||
|
|
return E_SUCCESS;
|
||
|
|
}
|
||
|
|
|
||
|
|
/** Finalize unit set-up */
|
||
|
|
error_t DOut_init(Unit *unit)
|
||
|
|
{
|
||
|
|
bool suc = true;
|
||
|
|
struct priv *priv = unit->data;
|
||
|
|
|
||
|
|
priv->initial &= priv->pins;
|
||
|
|
priv->open_drain &= priv->pins;
|
||
|
|
|
||
|
|
// --- Parse config ---
|
||
|
|
priv->port = hw_port2periph(priv->port_name, &suc);
|
||
|
|
if (!suc) return E_BAD_CONFIG;
|
||
|
|
|
||
|
|
// Claim all needed pins
|
||
|
|
TRY(rsc_claim_gpios(unit, priv->port_name, priv->pins));
|
||
|
|
|
||
|
|
for (int i = 0; i < 16; i++) {
|
||
|
|
if (priv->pins & (1 << i)) {
|
||
|
|
uint32_t ll_pin = hw_pin2ll((uint8_t) i, &suc);
|
||
|
|
|
||
|
|
// --- Init hardware ---
|
||
|
|
LL_GPIO_SetPinMode(priv->port, ll_pin, LL_GPIO_MODE_OUTPUT);
|
||
|
|
LL_GPIO_SetPinOutputType(priv->port, ll_pin,
|
||
|
|
(priv->open_drain & (1 << i)) ? LL_GPIO_OUTPUT_OPENDRAIN : LL_GPIO_OUTPUT_PUSHPULL);
|
||
|
|
LL_GPIO_SetPinSpeed(priv->port, ll_pin, LL_GPIO_SPEED_FREQ_HIGH);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Set the initial state
|
||
|
|
priv->port->ODR &= ~priv->pins;
|
||
|
|
priv->port->ODR |= priv->initial;
|
||
|
|
|
||
|
|
return E_SUCCESS;
|
||
|
|
}
|
||
|
|
|
||
|
|
/** Tear down the unit */
|
||
|
|
void DOut_deInit(Unit *unit)
|
||
|
|
{
|
||
|
|
// pins are de-inited during teardown
|
||
|
|
|
||
|
|
// Release all resources
|
||
|
|
rsc_teardown(unit);
|
||
|
|
|
||
|
|
// Free memory
|
||
|
|
free_ck(unit->data);
|
||
|
|
}
|