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126 lines
3.8 KiB
126 lines
3.8 KiB
//
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// Created by MightyPork on 2018/02/03.
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//
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#include "platform.h"
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#include "unit_base.h"
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#define SIPO_INTERNAL
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#include "_sipo_internal.h"
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/** Allocate data structure and set defaults */
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error_t USIPO_preInit(Unit *unit)
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{
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struct priv *priv = unit->data = calloc_ck(1, sizeof(struct priv));
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if (priv == NULL) return E_OUT_OF_MEM;
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priv->store_pname = 'A';
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priv->store_pnum = 0;
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priv->store_pol = true;
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priv->shift_pname = 'A';
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priv->shift_pnum = 1;
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priv->shift_pol = true;
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priv->clear_pname = 'A';
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priv->clear_pnum = 2;
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priv->clear_pol = false;
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priv->data_pname = 'A';
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priv->data_pins = (1<<3);
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return E_SUCCESS;
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}
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/** Finalize unit set-up */
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error_t USIPO_init(Unit *unit)
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{
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bool suc = true;
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struct priv *priv = unit->data;
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// --- Parse config ---
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priv->store_ll = hw_pin2ll(priv->store_pnum, &suc);
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priv->store_port = hw_port2periph(priv->store_pname, &suc);
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Resource store_rsc = rsc_portpin2rsc(priv->store_pname, priv->store_pnum, &suc);
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if (!suc) return E_BAD_CONFIG;
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TRY(rsc_claim(unit, store_rsc));
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priv->shift_ll = hw_pin2ll(priv->shift_pnum, &suc);
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priv->shift_port = hw_port2periph(priv->shift_pname, &suc);
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Resource shift_rsc = rsc_portpin2rsc(priv->shift_pname, priv->shift_pnum, &suc);
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if (!suc) return E_BAD_CONFIG;
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TRY(rsc_claim(unit, shift_rsc));
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priv->clear_ll = hw_pin2ll(priv->clear_pnum, &suc);
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priv->clear_port = hw_port2periph(priv->clear_pname, &suc);
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Resource clear_rsc = rsc_portpin2rsc(priv->clear_pname, priv->clear_pnum, &suc);
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if (!suc) return E_BAD_CONFIG;
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TRY(rsc_claim(unit, clear_rsc));
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// Claim all needed pins
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TRY(rsc_claim_gpios(unit, priv->data_pname, priv->data_pins));
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priv->data_port = hw_port2periph(priv->data_pname, &suc);
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// --- Init hardware ---
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priv->data_width = 0;
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for (int i = 0; i < 16; i++) {
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if (priv->data_pins & (1 << i)) {
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uint32_t ll_pin = hw_pin2ll((uint8_t) i, &suc);
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LL_GPIO_SetPinMode(priv->data_port, ll_pin, LL_GPIO_MODE_OUTPUT);
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LL_GPIO_SetPinOutputType(priv->data_port, ll_pin, LL_GPIO_OUTPUT_PUSHPULL);
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LL_GPIO_SetPinSpeed(priv->data_port, ll_pin, LL_GPIO_SPEED_FREQ_HIGH);
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priv->data_width++;
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}
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}
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// Set the initial state - zeros
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priv->data_port->ODR &= ~priv->data_pins;
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// STORE
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LL_GPIO_SetPinMode(priv->store_port, priv->store_ll, LL_GPIO_MODE_OUTPUT);
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LL_GPIO_SetPinOutputType(priv->store_port, priv->store_ll, LL_GPIO_OUTPUT_PUSHPULL);
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LL_GPIO_SetPinSpeed(priv->store_port, priv->store_ll, LL_GPIO_SPEED_FREQ_HIGH);
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if (priv->store_pol)
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LL_GPIO_ResetOutputPin(priv->store_port, priv->store_ll);
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else
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LL_GPIO_SetOutputPin(priv->store_port, priv->store_ll);
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// SHIFT
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LL_GPIO_SetPinMode(priv->shift_port, priv->shift_ll, LL_GPIO_MODE_OUTPUT);
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LL_GPIO_SetPinOutputType(priv->shift_port, priv->shift_ll, LL_GPIO_OUTPUT_PUSHPULL);
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LL_GPIO_SetPinSpeed(priv->shift_port, priv->shift_ll, LL_GPIO_SPEED_FREQ_HIGH);
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if (priv->shift_pol)
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LL_GPIO_ResetOutputPin(priv->shift_port, priv->shift_ll);
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else
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LL_GPIO_SetOutputPin(priv->shift_port, priv->shift_ll);
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// CLEAR
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LL_GPIO_SetPinMode(priv->clear_port, priv->clear_ll, LL_GPIO_MODE_OUTPUT);
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LL_GPIO_SetPinOutputType(priv->clear_port, priv->clear_ll, LL_GPIO_OUTPUT_PUSHPULL);
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LL_GPIO_SetPinSpeed(priv->clear_port, priv->clear_ll, LL_GPIO_SPEED_FREQ_HIGH);
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if (priv->clear_pol)
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LL_GPIO_ResetOutputPin(priv->clear_port, priv->clear_ll);
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else
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LL_GPIO_SetOutputPin(priv->clear_port, priv->clear_ll);
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// initial clear
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UU_SIPO_DirectClear(unit);
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return E_SUCCESS;
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}
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/** Tear down the unit */
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void USIPO_deInit(Unit *unit)
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{
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// Release all resources, deinit pins
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rsc_teardown(unit);
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// Free memory
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free_ck(unit->data);
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}
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