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added DI unit

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MightyPork
2017-12-28 21:01:13 +01:00
parent 37f712f054
commit 8768dc31ab
12 changed files with 313 additions and 29 deletions
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units/digital_in/unit_din.c
+237
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@@ -0,0 +1,237 @@
//
// Created by MightyPork on 2017/11/25.
//
#include <stm32f072xb.h>
#include "comm/messages.h"
#include "unit_base.h"
#include "unit_din.h"
/** Private data structure */
struct priv {
char port_name;
uint16_t pins; // pin mask
uint16_t pulldown; // pull-downs (default is pull-up)
uint16_t pullup; // pull-ups
GPIO_TypeDef *port;
};
// ------------------------------------------------------------------------
/** Load from a binary buffer stored in Flash */
static void DI_loadBinary(Unit *unit, PayloadParser *pp)
{
struct priv *priv = unit->data;
uint8_t version = pp_u8(pp);
(void)version;
priv->port_name = pp_char(pp);
priv->pins = pp_u16(pp);
priv->pulldown = pp_u16(pp);
priv->pullup = pp_u16(pp);
dbg("load bin, pulldown = %X", priv->pulldown);
}
/** Write to a binary buffer for storing in Flash */
static void DI_writeBinary(Unit *unit, PayloadBuilder *pb)
{
struct priv *priv = unit->data;
pb_u8(pb, 0); // version
pb_char(pb, priv->port_name);
pb_u16(pb, priv->pins);
pb_u16(pb, priv->pulldown);
pb_u16(pb, priv->pullup);
}
// ------------------------------------------------------------------------
/** Parse a key-value pair from the INI file */
static bool DI_loadIni(Unit *unit, const char *key, const char *value)
{
bool suc = true;
struct priv *priv = unit->data;
if (streq(key, "port")) {
suc = parse_port(value, &priv->port_name);
}
else if (streq(key, "pins")) {
priv->pins = parse_pinmask(value, &suc);
}
else if (streq(key, "pull-up")) {
priv->pullup = parse_pinmask(value, &suc);
}
else if (streq(key, "pull-down")) {
priv->pulldown = parse_pinmask(value, &suc);
dbg("parsinf ini, pulldown = %X", priv->pulldown);
}
else {
return false;
}
return suc;
}
/** Generate INI file section for the unit */
static void DI_writeIni(Unit *unit, IniWriter *iw)
{
struct priv *priv = unit->data;
iw_comment(iw, "Port name");
iw_entry(iw, "port", "%c", priv->port_name);
iw_comment(iw, "Pins (comma separated, supports ranges)");
iw_entry(iw, "pins", "%s", str_pinmask(priv->pins, unit_tmp64));
iw_comment(iw, "Pins with pull-up");
iw_entry(iw, "pull-up", "%s", str_pinmask(priv->pullup, unit_tmp64));
iw_comment(iw, "Pins with pull-down");
iw_entry(iw, "pull-down", "%s", str_pinmask(priv->pulldown, unit_tmp64));
#if PLAT_NO_FLOATING_INPUTS
iw_comment(iw, "NOTE: Pins use pull-up by default.\r\n");
#endif
}
// ------------------------------------------------------------------------
/** Allocate data structure and set defaults */
static bool DI_preInit(Unit *unit)
{
bool suc = true;
struct priv *priv = unit->data = calloc_ck(1, sizeof(struct priv), &suc);
CHECK_SUC();
// some defaults
priv->port_name = 'A';
priv->pins = 0x0001;
priv->pulldown = 0x0000;
priv->pullup = 0x0000;
return true;
}
/** Finalize unit set-up */
static bool DI_init(Unit *unit)
{
bool suc = true;
struct priv *priv = unit->data;
priv->pulldown &= priv->pins;
priv->pullup &= priv->pins;
// --- Parse config ---
priv->port = port2periph(priv->port_name, &suc);
if (!suc) {
unit->status = E_BAD_CONFIG;
return false;
}
// Claim all needed pins
suc = rsc_claim_gpios(unit, priv->port_name, priv->pins);
CHECK_SUC();
uint16_t mask = 1;
for (int i = 0; i < 16; i++, mask <<= 1) {
if (priv->pins & mask) {
uint32_t ll_pin = pin2ll((uint8_t) i, &suc);
// --- Init hardware ---
LL_GPIO_SetPinMode(priv->port, ll_pin, LL_GPIO_MODE_INPUT);
uint32_t pull = 0;
#if PLAT_NO_FLOATING_INPUTS
pull = LL_GPIO_PULL_UP;
#else
pull = LL_GPIO_PULL_NO;
#endif
if (priv->pulldown & mask) pull = LL_GPIO_PULL_DOWN;
if (priv->pullup & mask) pull = LL_GPIO_PULL_UP;
LL_GPIO_SetPinPull(priv->port, ll_pin, pull);
}
}
return true;
}
/** Tear down the unit */
static void DI_deInit(Unit *unit)
{
struct priv *priv = unit->data;
bool suc = true;
uint16_t mask = 1;
for (int i = 0; i < 16; i++, mask <<= 1) {
if (priv->pins & mask) {
uint32_t ll_pin = pin2ll((uint8_t) i, &suc);
assert_param(suc); // this should never fail if we got this far
// configure the pin as analog
LL_GPIO_SetPinMode(priv->port, ll_pin, LL_GPIO_MODE_ANALOG);
}
}
// Release all resources
rsc_teardown(unit);
// Free memory
free(unit->data);
unit->data = NULL;
}
// ------------------------------------------------------------------------
enum PinCmd_ {
CMD_READ = 0,
};
/** Handle a request message */
static bool DI_handleRequest(Unit *unit, TF_ID frame_id, uint8_t command, PayloadParser *pp)
{
(void)pp;
struct priv *priv = unit->data;
uint16_t packed = port_pack((uint16_t) priv->port->IDR, priv->pins);
switch (command) {
case CMD_READ:;
PayloadBuilder pb = pb_start((uint8_t*)unit_tmp64, 64, NULL);
pb_u16(&pb, packed);
com_respond_buf(frame_id, MSG_SUCCESS, (uint8_t *) unit_tmp64, pb_length(&pb));
break;
default:
com_respond_bad_cmd(frame_id);
return false;
}
return true;
}
// ------------------------------------------------------------------------
/** Unit template */
const UnitDriver UNIT_DIN = {
.name = "DI",
.description = "Digital input",
// Settings
.preInit = DI_preInit,
.cfgLoadBinary = DI_loadBinary,
.cfgWriteBinary = DI_writeBinary,
.cfgLoadIni = DI_loadIni,
.cfgWriteIni = DI_writeIni,
// Init
.init = DI_init,
.deInit = DI_deInit,
// Function
.handleRequest = DI_handleRequest,
};
units/digital_in/unit_din.h
+12
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@@ -0,0 +1,12 @@
//
// Created by MightyPork on 2017/11/25.
//
#ifndef U_DIN_H
#define U_DIN_H
#include "unit.h"
extern const UnitDriver UNIT_DIN;
#endif //U_DIN_H
units/digital_out/unit_dout.c
+10 -25
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@@ -23,6 +23,9 @@ static void DO_loadBinary(Unit *unit, PayloadParser *pp)
{
struct priv *priv = unit->data;
uint8_t version = pp_u8(pp);
(void)version;
priv->port_name = pp_char(pp);
priv->pins = pp_u16(pp);
priv->initial = pp_u16(pp);
@@ -34,6 +37,8 @@ static void DO_writeBinary(Unit *unit, PayloadBuilder *pb)
{
struct priv *priv = unit->data;
pb_u8(pb, 0); // version
pb_char(pb, priv->port_name);
pb_u16(pb, priv->pins);
pb_u16(pb, priv->initial);
@@ -71,19 +76,18 @@ static bool DO_loadIni(Unit *unit, const char *key, const char *value)
static void DO_writeIni(Unit *unit, IniWriter *iw)
{
struct priv *priv = unit->data;
char buf[64];
iw_comment(iw, "Port name");
iw_entry(iw, "port", "%c", priv->port_name);
iw_comment(iw, "Pins (comma separated, supports ranges)");
iw_entry(iw, "pins", "%s", str_pinmask(priv->pins, buf));
iw_entry(iw, "pins", "%s", str_pinmask(priv->pins, unit_tmp64));
iw_comment(iw, "Initially high pins");
iw_entry(iw, "initial", "%s", str_pinmask(priv->initial, buf));
iw_entry(iw, "initial", "%s", str_pinmask(priv->initial, unit_tmp64));
iw_comment(iw, "Open-drain pins");
iw_entry(iw, "opendrain", "%s", str_pinmask(priv->open_drain, buf));
iw_entry(iw, "opendrain", "%s", str_pinmask(priv->open_drain, unit_tmp64));
}
// ------------------------------------------------------------------------
@@ -120,28 +124,9 @@ static bool DO_init(Unit *unit)
return false;
}
dbg("Claim rsc");
// Claim all needed pins
for (int i = 0; i < 16; i++) {
if (priv->pins & (1 << i)) {
Resource rsc = pin2resource(priv->port_name, (uint8_t) i, &suc);
if (!suc) {
unit->status = E_BAD_CONFIG;
rsc_teardown(unit);
return false;
}
suc = rsc_claim(unit, rsc);
if (!suc) {
rsc_teardown(unit);
return false;
}
}
}
dbg("Init pins");
suc = rsc_claim_gpios(unit, priv->port_name, priv->pins);
CHECK_SUC();
uint16_t mask = 1;
for (int i = 0; i < 16; i++, mask <<= 1) {