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gex-core/units/sipo/_sipo_init.c

127 lines
3.8 KiB

7 years ago
//
// Created by MightyPork on 2018/02/03.
//
#include "platform.h"
#include "unit_base.h"
#define SIPO_INTERNAL
#include "_sipo_internal.h"
/** Allocate data structure and set defaults */
error_t USIPO_preInit(Unit *unit)
{
struct priv *priv = unit->data = calloc_ck(1, sizeof(struct priv));
if (priv == NULL) return E_OUT_OF_MEM;
priv->store_pname = 'A';
priv->store_pnum = 0;
priv->store_pol = true;
priv->shift_pname = 'A';
priv->shift_pnum = 1;
priv->shift_pol = true;
priv->clear_pname = 'A';
priv->clear_pnum = 2;
priv->clear_pol = false;
priv->data_pname = 'A';
priv->data_pins = (1<<3);
return E_SUCCESS;
}
/** Finalize unit set-up */
error_t USIPO_init(Unit *unit)
{
bool suc = true;
struct priv *priv = unit->data;
// --- Parse config ---
priv->store_ll = hw_pin2ll(priv->store_pnum, &suc);
priv->store_port = hw_port2periph(priv->store_pname, &suc);
Resource store_rsc = hw_pin2resource(priv->store_pname, priv->store_pnum, &suc);
if (!suc) return E_BAD_CONFIG;
TRY(rsc_claim(unit, store_rsc));
priv->shift_ll = hw_pin2ll(priv->shift_pnum, &suc);
priv->shift_port = hw_port2periph(priv->shift_pname, &suc);
Resource shift_rsc = hw_pin2resource(priv->shift_pname, priv->shift_pnum, &suc);
if (!suc) return E_BAD_CONFIG;
TRY(rsc_claim(unit, shift_rsc));
priv->clear_ll = hw_pin2ll(priv->clear_pnum, &suc);
priv->clear_port = hw_port2periph(priv->clear_pname, &suc);
Resource clear_rsc = hw_pin2resource(priv->clear_pname, priv->clear_pnum, &suc);
if (!suc) return E_BAD_CONFIG;
TRY(rsc_claim(unit, clear_rsc));
// Claim all needed pins
TRY(rsc_claim_gpios(unit, priv->data_pname, priv->data_pins));
priv->data_port = hw_port2periph(priv->data_pname, &suc);
// --- Init hardware ---
priv->data_width = 0;
for (int i = 0; i < 16; i++) {
if (priv->data_pins & (1 << i)) {
uint32_t ll_pin = hw_pin2ll((uint8_t) i, &suc);
LL_GPIO_SetPinMode(priv->data_port, ll_pin, LL_GPIO_MODE_OUTPUT);
LL_GPIO_SetPinOutputType(priv->data_port, ll_pin, LL_GPIO_OUTPUT_PUSHPULL);
LL_GPIO_SetPinSpeed(priv->data_port, ll_pin, LL_GPIO_SPEED_FREQ_HIGH);
priv->data_width++;
}
}
// Set the initial state - zeros
priv->data_port->ODR &= ~priv->data_pins;
// STORE
LL_GPIO_SetPinMode(priv->store_port, priv->store_ll, LL_GPIO_MODE_OUTPUT);
LL_GPIO_SetPinOutputType(priv->store_port, priv->store_ll, LL_GPIO_OUTPUT_PUSHPULL);
LL_GPIO_SetPinSpeed(priv->store_port, priv->store_ll, LL_GPIO_SPEED_FREQ_HIGH);
if (priv->store_pol)
LL_GPIO_ResetOutputPin(priv->store_port, priv->store_ll);
else
LL_GPIO_SetOutputPin(priv->store_port, priv->store_ll);
// SHIFT
LL_GPIO_SetPinMode(priv->shift_port, priv->shift_ll, LL_GPIO_MODE_OUTPUT);
LL_GPIO_SetPinOutputType(priv->shift_port, priv->shift_ll, LL_GPIO_OUTPUT_PUSHPULL);
LL_GPIO_SetPinSpeed(priv->shift_port, priv->shift_ll, LL_GPIO_SPEED_FREQ_HIGH);
if (priv->shift_pol)
LL_GPIO_ResetOutputPin(priv->shift_port, priv->shift_ll);
else
LL_GPIO_SetOutputPin(priv->shift_port, priv->shift_ll);
// CLEAR
LL_GPIO_SetPinMode(priv->clear_port, priv->clear_ll, LL_GPIO_MODE_OUTPUT);
LL_GPIO_SetPinOutputType(priv->clear_port, priv->clear_ll, LL_GPIO_OUTPUT_PUSHPULL);
LL_GPIO_SetPinSpeed(priv->clear_port, priv->clear_ll, LL_GPIO_SPEED_FREQ_HIGH);
if (priv->clear_pol)
LL_GPIO_ResetOutputPin(priv->clear_port, priv->clear_ll);
else
LL_GPIO_SetOutputPin(priv->clear_port, priv->clear_ll);
7 years ago
// initial clear
UU_SIPO_DirectClear(unit);
7 years ago
return E_SUCCESS;
}
/** Tear down the unit */
void USIPO_deInit(Unit *unit)
{
// Release all resources, deinit pins
rsc_teardown(unit);
// Free memory
free_ck(unit->data);
}