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added automatic GPIO teardown, remap support to i2c, force error comments in ini if disabled

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MightyPork
2018-01-06 18:45:23 +01:00
parent ce895b3238
commit 6756b79ef4
9 changed files with 98 additions and 91 deletions
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units/i2c/unit_i2c.c
+50 -11
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@@ -2,6 +2,7 @@
// Created by MightyPork on 2018/01/02.
//
#include <framework/system_settings.h>
#include "comm/messages.h"
#include "unit_base.h"
#include "utils/avrlibc.h"
@@ -12,6 +13,8 @@
/** Private data structure */
struct priv {
uint8_t periph_num; //!< 1 or 2
uint8_t remap; //!< I2C remap option
bool anf; //!< Enable analog noise filter
uint8_t dnf; //!< Enable digital noise filter (1-15 ... max spike width)
uint8_t speed; //!< 0 - Standard, 1 - Fast, 2 - Fast+
@@ -63,6 +66,9 @@ static error_t UI2C_loadIni(Unit *unit, const char *key, const char *value)
if (streq(key, "device")) {
priv->periph_num = (uint8_t) avr_atoi(value);
}
else if (streq(key, "remap")) {
priv->remap = (uint8_t) avr_atoi(value);
}
else if (streq(key, "analog-filter")) {
priv->anf = str_parse_yn(value, &suc);
}
@@ -88,6 +94,22 @@ static void UI2C_writeIni(Unit *unit, IniWriter *iw)
iw_comment(iw, "Peripheral number (I2Cx)");
iw_entry(iw, "device", "%d", (int)priv->periph_num);
iw_comment(iw, "Pin mappings (SCL,SDA)");
#if GEX_PLAT_F072_DISCOVERY
iw_comment(iw, " I2C1: (0) B6,B7 (1) B8,B9");
iw_comment(iw, " I2C2: (0) B10,B11 (1) B13,B14");
#elif GEX_PLAT_F103_BLUEPILL
#error "NO IMPL"
#elif GEX_PLAT_F303_DISCOVERY
#error "NO IMPL"
#elif GEX_PLAT_F407_DISCOVERY
#error "NO IMPL"
#else
#error "BAD PLATFORM!"
#endif
iw_entry(iw, "remap", "%d", (int)priv->remap);
iw_cmt_newline(iw);
iw_comment(iw, "Speed: 1-Standard, 2-Fast, 3-Fast+");
iw_entry(iw, "speed", "%d", (int)priv->speed);
@@ -157,17 +179,38 @@ static error_t UI2C_init(Unit *unit)
#if GEX_PLAT_F072_DISCOVERY
// scl - 6 or 8 for I2C1, 10 for I2C2
// sda - 7 or 9 for I2C1, 11 for I2C2
portname = 'B';
if (priv->periph_num == 1) {
pin_scl = 8;
pin_sda = 9;
// I2C1
if (priv->remap == 0) {
af_i2c = LL_GPIO_AF_1;
portname = 'B';
pin_scl = 6;
pin_sda = 7;
} else if (priv->remap == 1) {
af_i2c = LL_GPIO_AF_1;
portname = 'B';
pin_scl = 8;
pin_sda = 9;
} else {
return E_BAD_CONFIG;
}
} else {
pin_scl = 10;
pin_sda = 12;
// I2C2
if (priv->remap == 0) {
af_i2c = LL_GPIO_AF_1;
portname = 'B';
pin_scl = 10;
pin_sda = 11;
} else if (priv->remap == 1) {
af_i2c = LL_GPIO_AF_5;
portname = 'B';
pin_scl = 13;
pin_sda = 14;
} else {
return E_BAD_CONFIG;
}
}
af_i2c = LL_GPIO_AF_1;
if (priv->speed == 1)
timing = 0x00301D2B; // Standard
else if (priv->speed == 2)
@@ -244,7 +287,6 @@ static void UI2C_deInit(Unit *unit)
// de-init the pins & peripheral only if inited correctly
if (unit->status == E_SUCCESS) {
assert_param(priv->periph);
assert_param(priv->port);
LL_I2C_DeInit(priv->periph);
@@ -253,9 +295,6 @@ static void UI2C_deInit(Unit *unit)
} else {
__HAL_RCC_I2C2_CLK_DISABLE();
}
LL_GPIO_SetPinMode(priv->port, priv->ll_pin_sda, LL_GPIO_MODE_ANALOG);
LL_GPIO_SetPinMode(priv->port, priv->ll_pin_scl, LL_GPIO_MODE_ANALOG);
}
// Release all resources