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variant.cpp
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variant.cpp
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/*
Copyright (c) 2011 Arduino. All right reserved.
Copyright (c) 2014 Intel Corporation.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "Arduino.h"
#include <errno.h>
#include "interrupt.h"
#include "Mux.h"
#include "sysfs.h"
#include "trace.h"
#include "variant.h"
//Bindings to Arduino
#include "RingBuffer.h"
#include "TTYUART.h"
#define MY_TRACE_PREFIX "variant"
#ifdef __cplusplus
extern "C" {
#endif
//////////////////////////// Galileo Gen2 ////////////////////////////
const int mux_sel_analog[NUM_ANALOG_INPUTS] = {
MUX_SEL_AD7298_VIN0,
MUX_SEL_AD7298_VIN1,
MUX_SEL_AD7298_VIN2,
MUX_SEL_AD7298_VIN3,
MUX_SEL_AD7298_VIN4,
MUX_SEL_AD7298_VIN5,
};
const int mux_sel_uart[NUM_UARTS][MUX_DEPTH_UART] = {
/* This is auto-indexed (board pinout) */
{MUX_SEL_NONE, MUX_SEL_NONE}, // ttyGS0 - USB not muxed
{MUX_SEL_UART0_RXD, MUX_SEL_UART0_TXD}, // ttyS0 - muxed
{MUX_SEL_UART1_RXD, MUX_SEL_UART1_TXD}, // ttyS1 - muxed
};
const int mux_sel_spi[NUM_SPI][MUX_DEPTH_SPI] = {
{
MUX_SEL_NONE,
MUX_SEL_NONE,
MUX_SEL_NONE
},
{
MUX_SEL_SPI1_MOSI,
MUX_SEL_SPI1_MISO,
MUX_SEL_SPI1_SCK
},
};
mux_sel_t MuxDesc0[] = {
//gpio, value, type
{32, LOW, FN_GPIO_OUTPUT}, // Output enable
{32, HIGH, FN_UART | FN_GPIO_INPUT}, // Output disable
{33, NONE, FN_UART | FN_GPIO_INPUT_HIZ | FN_GPIO_OUTPUT}, // Pullup disable
{33, HIGH, FN_GPIO_INPUT_PULLUP}, // Pullup enable
};
mux_sel_t MuxDesc1[] = {
//gpio, value, type
{45, LOW, FN_GPIO},
{45, HIGH, FN_UART},
{28, LOW, FN_UART | FN_GPIO_OUTPUT}, // Output enable
{28, HIGH, FN_GPIO_INPUT}, // Output disable
{29, NONE, FN_UART | FN_GPIO_INPUT_HIZ | FN_GPIO_OUTPUT}, // Pullup disable
{29, HIGH, FN_GPIO_INPUT_PULLUP}, // Pullup enable
{29, LOW, FN_GPIO_INPUT_PULLDOWN}, // Pulldown enable
};
mux_sel_t MuxDesc2[] = {
//gpio, value, type
{77, LOW, FN_GPIO},
{77, HIGH, FN_UART},
{34, LOW, FN_GPIO_OUTPUT}, // Output disable
{34, HIGH, FN_UART | FN_GPIO_INPUT}, // Output enable
{35, NONE, FN_UART | FN_GPIO_INPUT_HIZ | FN_GPIO_OUTPUT}, // Pullup disable
{35, HIGH, FN_GPIO_INPUT_PULLUP}, // Pullup enable
{35, LOW, FN_GPIO_INPUT_PULLDOWN}, // Pulldown enable
{13, NONE, FN_GPIO}, // Disable GPIO #13 output, connected on same pin
{61, NONE, FN_UART}, // Disable GPIO #61 output, connected on same pin
};
mux_sel_t MuxDesc2A[] = {
//gpio, value, type
{77, LOW, FN_GPIO},
{77, HIGH, FN_UART},
{34, LOW, FN_GPIO_OUTPUT}, // Output disable
{34, HIGH, FN_UART | FN_GPIO_INPUT}, // Output enable
{35, NONE, FN_UART | FN_GPIO_INPUT_HIZ | FN_GPIO_OUTPUT}, // Pullup disable
{35, HIGH, FN_GPIO_INPUT_PULLUP}, // Pullup enable
{35, LOW, FN_GPIO_INPUT_PULLDOWN}, // Pulldown enable
{61, NONE, FN_GPIO | FN_UART}, // Disable GPIO #61 output, connected on same pin
};
mux_sel_t MuxDesc3[] = {
//gpio, value, type
{64, LOW, FN_GPIO},
{64, HIGH, FN_PWM},
{76, LOW, FN_GPIO | FN_PWM},
{76, HIGH, FN_UART},
{16, LOW, FN_UART | FN_PWM | FN_GPIO_OUTPUT}, // Output enable
{16, HIGH, FN_GPIO_INPUT}, // Output disable
{17, NONE, FN_UART | FN_PWM | FN_GPIO_INPUT_HIZ | FN_GPIO_OUTPUT}, // Pullup disable
{17, HIGH, FN_GPIO_INPUT_PULLUP}, // Pullup enable
{17, LOW, FN_GPIO_INPUT_PULLDOWN}, // Pulldown enable
{14, NONE, FN_GPIO}, // Disable GPIO #14 output, connected on same pin
{62, NONE, FN_PWM | FN_UART}, // Disable GPIO #62 output, connected on same pin
};
mux_sel_t MuxDesc3A[] = {
//gpio, value, type
{64, LOW, FN_GPIO},
{64, HIGH, FN_PWM},
{76, LOW, FN_GPIO | FN_PWM},
{76, HIGH, FN_UART},
{16, LOW, FN_UART | FN_PWM | FN_GPIO_OUTPUT}, // Output enable
{16, HIGH, FN_GPIO_INPUT}, // Output disable
{17, NONE, FN_UART | FN_PWM | FN_GPIO_INPUT_HIZ | FN_GPIO_OUTPUT}, // Pullup disable
{17, HIGH, FN_GPIO_INPUT_PULLUP}, // Pullup enable
{17, LOW, FN_GPIO_INPUT_PULLDOWN}, // Pulldown enable
{62, NONE, FN_GPIO | FN_PWM | FN_UART}, // Disable GPIO #62 output, connected on same pin
};
mux_sel_t MuxDesc4[] = {
//gpio, value, type
{36, LOW, FN_GPIO_OUTPUT}, // Output enable
{36, HIGH, FN_GPIO_INPUT}, // Output disable
{37, NONE, FN_GPIO_INPUT_HIZ | FN_GPIO_OUTPUT}, // Pullup disable
{37, HIGH, FN_GPIO_INPUT_PULLUP}, // Pullup enable
{37, LOW, FN_GPIO_INPUT_PULLDOWN}, // Pulldown enable
};
mux_sel_t MuxDesc5[] = {
//gpio, value, type
{66, LOW, FN_GPIO},
{66, HIGH, FN_PWM},
{18, LOW, FN_PWM | FN_GPIO_OUTPUT}, // Output-enable
{18, HIGH, FN_GPIO_INPUT}, // Output-disable
{19, NONE, FN_PWM | FN_GPIO_INPUT_HIZ | FN_GPIO_OUTPUT}, // Pullup disable
{19, HIGH, FN_GPIO_INPUT_PULLUP}, // Pullup enable
{19, LOW, FN_GPIO_INPUT_PULLDOWN}, // Pulldown enable
};
mux_sel_t MuxDesc6[] = {
//gpio, value, type
{68, LOW, FN_GPIO},
{68, HIGH, FN_PWM},
{20, LOW, FN_PWM | FN_GPIO_OUTPUT}, // Output-enable
{20, HIGH, FN_GPIO_INPUT}, // Output-disable
{21, NONE, FN_PWM | FN_GPIO_INPUT_HIZ | FN_GPIO_OUTPUT}, // Pullup disable
{21, HIGH, FN_GPIO_INPUT_PULLUP}, // Pullup enable
{21, LOW, FN_GPIO_INPUT_PULLDOWN}, // Pulldown enable
};
mux_sel_t MuxDesc7[] = {
//gpio, value, type
{39, NONE, FN_GPIO_INPUT_HIZ | FN_GPIO_OUTPUT}, // Pullup disable
{39, HIGH, FN_GPIO_INPUT_PULLUP}, // Pullup enable
{39, LOW, FN_GPIO_INPUT_PULLDOWN}, // Pulldown enable
};
mux_sel_t MuxDesc8[] = {
//gpio, value, type
{41, NONE, FN_GPIO_INPUT_HIZ | FN_GPIO_OUTPUT}, // Pullup disable
{41, HIGH, FN_GPIO_INPUT_PULLUP}, // Pullup enable
{41, LOW, FN_GPIO_INPUT_PULLDOWN}, // Pulldown enable
};
mux_sel_t MuxDesc9[] = {
//gpio, value, type
{70, LOW, FN_GPIO},
{70, HIGH, FN_PWM},
{22, LOW, FN_PWM | FN_GPIO_OUTPUT}, // Output-enable
{22, HIGH, FN_GPIO_INPUT}, // Output-disable
{23, NONE, FN_PWM | FN_GPIO_INPUT_HIZ | FN_GPIO_OUTPUT}, // Pullup disable
{23, HIGH, FN_GPIO_INPUT_PULLUP}, // Pullup enable
{23, LOW, FN_GPIO_INPUT_PULLDOWN}, // Pulldown enable
};
mux_sel_t MuxDesc10[] = {
//gpio, value, type
{74, LOW, FN_GPIO},
{74, HIGH, FN_PWM},
{26, LOW, FN_PWM | FN_GPIO_OUTPUT}, // Output enable
{26, HIGH, FN_GPIO_INPUT}, // Output disable
{27, NONE, FN_PWM | FN_GPIO_INPUT_HIZ | FN_GPIO_OUTPUT}, // Pullup disable
{27, HIGH, FN_GPIO_INPUT_PULLUP}, // Pullup enable
{27, LOW, FN_GPIO_INPUT_PULLDOWN}, // Pulldown enable
};
mux_sel_t MuxDesc11[] = {
//gpio, value, type
{44, LOW, FN_GPIO},
{44, HIGH, FN_SPI},
{72, LOW, FN_GPIO},
{72, LOW, FN_SPI},
{72, HIGH, FN_PWM},
{24, LOW, FN_PWM | FN_SPI | FN_GPIO_OUTPUT}, // Output-enable
{24, HIGH, FN_GPIO_INPUT}, // Output-enable
{25, NONE, FN_PWM | FN_SPI | FN_GPIO_INPUT_HIZ | FN_GPIO_OUTPUT}, // Pullup disable
{25, HIGH, FN_GPIO_INPUT_PULLUP}, // Pullup enable
{25, LOW, FN_GPIO_INPUT_PULLDOWN}, // Pulldown enable
};
mux_sel_t MuxDesc12[] = {
//gpio, value, type
{42, LOW, FN_GPIO_OUTPUT}, // Output enable
{42, HIGH, FN_SPI | FN_GPIO_INPUT}, // Output disable
{43, NONE, FN_SPI | FN_GPIO_INPUT_HIZ | FN_GPIO_OUTPUT}, // Pullup disable
{43, HIGH, FN_GPIO_INPUT_PULLUP}, // Pullup enable
{43, LOW, FN_GPIO_INPUT_PULLDOWN}, // Pulldown enable
};
mux_sel_t MuxDesc13[] = {
//gpio, value, type
{46, LOW, FN_GPIO},
{46, HIGH, FN_SPI},
{30, LOW, FN_SPI | FN_GPIO_OUTPUT}, // Output enable
{30, HIGH, FN_GPIO_INPUT}, // Output disable
{31, NONE, FN_SPI | FN_GPIO_INPUT_HIZ | FN_GPIO_OUTPUT}, // Pullup disable
{31, HIGH, FN_GPIO_INPUT_PULLUP}, // Pullup enable
{31, LOW, FN_GPIO_INPUT_PULLDOWN}, // Pulldown enable
};
mux_sel_t MuxDesc14[] = {
//gpio, value, type
{48, NONE, FN_ANALOG}, // Prevent leakage current for ADC
{49, NONE, FN_ANALOG | FN_GPIO_INPUT_HIZ | FN_GPIO_OUTPUT}, // Pullup disable
{49, HIGH, FN_GPIO_INPUT_PULLUP}, // Pullup enable
{49, LOW, FN_GPIO_INPUT_PULLDOWN}, // Pulldown enable
};
mux_sel_t MuxDesc15[] = {
//gpio, value, type
{50, NONE, FN_ANALOG}, // Prevent leakage current for ADC
{51, NONE, FN_ANALOG | FN_GPIO_INPUT_HIZ | FN_GPIO_OUTPUT}, // Pullup disable
{51, HIGH, FN_GPIO_INPUT_PULLUP}, // Pullup enable
{51, LOW, FN_GPIO_INPUT_PULLDOWN}, // Pulldown enable
};
mux_sel_t MuxDesc16[] = {
//gpio, value, type
{52, NONE, FN_ANALOG}, // Prevent leakage current for ADC
{53, NONE, FN_ANALOG | FN_GPIO_INPUT_HIZ | FN_GPIO_OUTPUT}, // Pullup disable
{53, HIGH, FN_GPIO_INPUT_PULLUP}, // Pullup enable
{53, LOW, FN_GPIO_INPUT_PULLDOWN}, // Pulldown enable
};
mux_sel_t MuxDesc17[] = {
//gpio, value, type
{54, NONE, FN_ANALOG}, // Prevent leakage current for ADC
{55, NONE, FN_ANALOG | FN_GPIO_INPUT_HIZ | FN_GPIO_OUTPUT}, // Pullup disable
{55, HIGH, FN_GPIO_INPUT_PULLUP}, // Pullup enable
{55, LOW, FN_GPIO_INPUT_PULLDOWN}, // Pulldown enable
};
mux_sel_t MuxDesc18[] = {
//gpio, value, type
{78, LOW, FN_ANALOG},
{78, HIGH, FN_GPIO},
{60, LOW, FN_I2C},
{60, HIGH, FN_ANALOG},
{60, HIGH, FN_GPIO},
{56, NONE, FN_ANALOG | FN_I2C}, // Prevent leakage current for ADC
{57, NONE, FN_ANALOG | FN_I2C | FN_GPIO_INPUT_HIZ | FN_GPIO_OUTPUT}, // Pullup disable
{57, HIGH, FN_GPIO_INPUT_PULLUP}, // Pullup enable
{57, LOW, FN_GPIO_INPUT_PULLDOWN}, // Pulldown enable
};
mux_sel_t MuxDesc19[] = {
//gpio, value, type
{79, LOW, FN_ANALOG},
{79, HIGH, FN_GPIO},
{60, LOW, FN_I2C},
{60, HIGH, FN_ANALOG},
{60, HIGH, FN_GPIO},
{58, NONE, FN_ANALOG | FN_I2C}, // Prevent leakage current for ADC
{59, NONE, FN_ANALOG | FN_I2C | FN_GPIO_INPUT_HIZ | FN_GPIO_OUTPUT}, // Pullup disable
{59, HIGH, FN_GPIO_INPUT_PULLUP}, // Pullup enable
{59, LOW, FN_GPIO_INPUT_PULLDOWN}, // Pulldown enable
};
/*
* The following 6 pins are for Fast mode MMIO access. The pins are the same
* as slow mode, they just use MMIO register access for fast mode and sysfs for slow mode.
*/
// gpiolib alias fastinf ardid Initial FixdSt ptMuxDesc, MuxCount type Handle extPU iAlt pAlt
PinDescription AltPin0 =
{ 11, NONE, GPIO_FAST_IO0, 0, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc0, MUX_SIZE(MuxDesc0), FN_GPIO, -1, 1, 0, NULL }; // Arduino IO0 or UART0_RXD
PinDescription AltPin1 =
{ 12, NONE, GPIO_FAST_IO1, 1, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc1, MUX_SIZE(MuxDesc1), FN_GPIO, -1, 1, 0, NULL }; // Arduino IO1 or UART0_TXD
PinDescription AltPin2 =
{ 13, NONE, GPIO_FAST_IO2, 2, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc2A, MUX_SIZE(MuxDesc2A), FN_GPIO, -1, 1, 0, NULL }; // Arduino IO2 or UART1_RXD
PinDescription AltPin3 =
{ 14, NONE, GPIO_FAST_IO3, 3, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc3A, MUX_SIZE(MuxDesc3A), FN_GPIO, -1, 1, 0, NULL }; // Arduino IO3 or UART1_TXD or PWM pin #1
PinDescription AltPin10 =
{ 10, NONE, GPIO_FAST_IO10, 10, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc10, MUX_SIZE(MuxDesc10), FN_GPIO, -1, 1, 0, NULL }; // Arduino IO10 or SPI1_SS_B or PWM pin #5
PinDescription AltPin12 =
{ 15, NONE, GPIO_FAST_IO12, 12, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc12, MUX_SIZE(MuxDesc12), FN_GPIO, -1, 1, 0, NULL }; // Arduino IO12 or SPI1_MISO
/*
* The following 8 pins are for Fast mode PIO access. The pins are the same
* as slow mode, they just use PIO register access for fast mode and sysfs for slow mode.
*/
// gpiolib alias fastinf ardid Initial FixdSt ptMuxDesc, MuxCount type Handle extPU iAlt pAlt
PinDescription AltPin5 =
{ 0, NONE, GPIO_FAST_IO5, 5, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc5, MUX_SIZE(MuxDesc5), FN_GPIO, -1, 1, 0, NULL }; // Arduino IO5 or PWM pin #2
PinDescription AltPin6 =
{ 1, NONE, GPIO_FAST_IO6, 6, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc6, MUX_SIZE(MuxDesc6), FN_GPIO, -1, 1, 0, NULL }; // Arduino IO6 or PWM pin #3
PinDescription AltPin9 =
{ 4, NONE, GPIO_FAST_IO9, 9, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc9, MUX_SIZE(MuxDesc9), FN_GPIO, -1, 1, 0, NULL }; // Arduino IO9 or PWM pin #4
PinDescription AltPin11 =
{ 5, NONE, GPIO_FAST_IO11, 11, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc11, MUX_SIZE(MuxDesc11), FN_GPIO, -1, 1, 0, NULL }; // Arduino IO11 or SPI1_MOSI or PWM pin #6
PinDescription AltPin4 =
{ 6, NONE, GPIO_FAST_IO4, 4, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc4, MUX_SIZE(MuxDesc4), FN_GPIO, -1, 1, 0, NULL }; // Arduino IO4
PinDescription AltPin13 =
{ 7, NONE, GPIO_FAST_IO13, 13, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc13, MUX_SIZE(MuxDesc13), FN_GPIO, -1, 1, 0, NULL }; // Arduino IO13 or SPI1_SCK
// Sorted by Linux GPIO ID
PinDescription g_APinDescription[]=
{
// gpiolib alias fastinf ardid Initial FixdSt ptMuxDesc, MuxCount type Handle extPU iAlt pAlt
{ 0, NONE, NULL, 5, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc5, MUX_SIZE(MuxDesc5), FN_GPIO, -1, 1, 0, &AltPin5 }, // Arduino IO5 or PWM pin #2
{ 1, NONE, NULL, 6, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc6, MUX_SIZE(MuxDesc6), FN_GPIO, -1, 1, 0, &AltPin6 }, // Arduino IO6 or PWM pin #3
{ 2, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_RESERVED, -1, 1, 0, NULL }, // PCIe Reset to h/w
{ 3, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_RESERVED, -1, 1, 0, NULL }, // Wifi Disable reset to h/w
{ 4, NONE, NULL, 9, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc9, MUX_SIZE(MuxDesc9), FN_GPIO, -1, 1, 0, &AltPin9 }, // Arduino IO9 or PWM pin #4
{ 5, NONE, NULL, 11, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc11, MUX_SIZE(MuxDesc11), FN_GPIO, -1, 1, 0, &AltPin11}, // Arduino IO11 or SPI1_MOSI or PWM pin #6
{ 6, NONE, NULL, 4, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc4, MUX_SIZE(MuxDesc4), FN_GPIO, -1, 1, 0, &AltPin4 }, // Arduino IO4
{ 7, NONE, NULL, 13, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc13, MUX_SIZE(MuxDesc13), FN_GPIO, -1, 1, 0, &AltPin13}, // Arduino IO13 or SPI1_SCK
{ 8, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_RESERVED, -1, 0, 0, NULL }, // owned by Linux driver
{ 9, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_RESERVED, -1, 0, 0, NULL }, // owned by Linux driver
{ 10, NONE, NULL, 10, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc10, MUX_SIZE(MuxDesc10), FN_GPIO, -1, 1, 0, &AltPin10}, // Arduino IO10 or SPI1_SS_B or PWM pin #5
{ 11, NONE, NULL, 0, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc0, MUX_SIZE(MuxDesc0), FN_GPIO, -1, 1, 0, &AltPin0 }, // Arduino IO0 or UART0_RXD
{ 12, NONE, NULL, 1, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc1, MUX_SIZE(MuxDesc1), FN_GPIO, -1, 1, 0, &AltPin1 }, // Arduino IO1 or UART0_TXD
// { 13, NONE, NULL, 2, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc2, MUX_SIZE(MuxDesc2), FN_GPIO, -1, 1, 0, &AltPin2 }, // Arduino IO2 or UART1_RXD (Using GPIO #61 to allow CHANGE-mode interrupts)
// { 14, NONE, NULL, 3, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc3, MUX_SIZE(MuxDesc3), FN_GPIO, -1, 1, 0, &AltPin3 }, // Arduino IO3 or UART1_TXD or PWM pin #1 (Using GPIO #62 to allow CHANGE-mode interrupts)
{ 15, NONE, NULL, 12, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc12, MUX_SIZE(MuxDesc12), FN_GPIO, -1, 1, 0, &AltPin12}, // Arduino IO12 or SPI1_MISO
{ 16, NONE, NULL, NONE, NONE, HIGH, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Direction Control for GPIO #14 - Arduino ID IO3
{ 17, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Pullup Control for GPIO #14 - Arduino ID IO3
{ 18, NONE, NULL, NONE, NONE, HIGH, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Direction Control for GPIO #0 - Arduino ID IO5
{ 19, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Pullup Control for GPIO #0 - Arduino ID IO5
{ 20, NONE, NULL, NONE, NONE, HIGH, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Direction Control for GPIO #1 - Arduino ID IO6
{ 21, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Pullup Control for GPIO #1 - Arduino ID IO6
{ 22, NONE, NULL, NONE, NONE, HIGH, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Direction Control for GPIO #4 - Arduino ID IO9
{ 23, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Pullup Control for GPIO #4 - Arduino ID IO9
{ 24, NONE, NULL, NONE, NONE, HIGH, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Direction Control for GPIO #5 - Arduino ID IO11
{ 25, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Pullup Control for GPIO #5 - Arduino ID IO11
{ 26, NONE, NULL, NONE, NONE, HIGH, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Direction Control for GPIO #10 - Arduino ID IO10
{ 27, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Pullup Control for GPIO #10 - Arduino ID IO10
{ 28, NONE, NULL, NONE, NONE, HIGH, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Direction Control for GPIO #12 - Arduino ID IO1
{ 29, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Pullup Control for GPIO #12 - Arduino ID IO1
{ 30, NONE, NULL, NONE, NONE, HIGH, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Direction Control for GPIO #7 - Arduino ID IO13
{ 31, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Pullup Control for GPIO #7 - Arduino ID IO13
{ 32, NONE, NULL, NONE, NONE, HIGH, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Direction Control for GPIO #11 - Arduino ID IO0
{ 33, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Pullup Control for GPIO #11 - Arduino ID IO0
{ 34, NONE, NULL, NONE, NONE, HIGH, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Direction Control for GPIO #13 - Arduino ID IO2
{ 35, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Pullup Control for GPIO #13 - Arduino ID IO2
{ 36, NONE, NULL, NONE, NONE, HIGH, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Direction Control for GPIO #6 - Arduino ID IO4
{ 37, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Pullup Control for GPIO #6 - Arduino ID IO4
{ 38, NONE, NULL, 7, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc7, MUX_SIZE(MuxDesc7), FN_GPIO, -1, 0, 0, NULL }, // Arduino IO7
{ 39, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Pullup Control for GPIO #2 - Arduino ID IO7
{ 40, NONE, NULL, 8, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc8, MUX_SIZE(MuxDesc8), FN_GPIO, -1, 0, 0, NULL }, // Arduino IO8
{ 41, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Pullup Control for GPIO #3 - Arduino ID IO8
{ 42, NONE, NULL, NONE, NONE, HIGH, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Direction Control for GPIO #15 - Arduino ID IO12
{ 43, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Pullup Control for GPIO #15 - Arduino ID IO12
{ 44, NONE, NULL, NONE, NONE, LOW, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Mux control for GPIO #14 - Arduino ID IO11 - SPI1_MOSI
{ 45, NONE, NULL, NONE, NONE, LOW, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Mux control for GPIO #12 - Arduino ID IO1 - UART0_TXD
{ 46, NONE, NULL, NONE, NONE, LOW, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Mux control for GPIO #7 - Arduino ID IO13 - SPI1_SCK
{ 47, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_RESERVED, -1, 0, 0, NULL }, // Shield reset to s/w
{ 48, NONE, NULL, 14, FN_GPIO_INPUT_HIZ, LOW, (mux_sel_t*)&MuxDesc14, MUX_SIZE(MuxDesc14), FN_GPIO, -1, 1, 0, NULL }, // Arduino IO14 or AD7298:VIN0
{ 49, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Pullup Control for GPIO #48 - Arduino ID IO14
{ 50, NONE, NULL, 15, FN_GPIO_INPUT_HIZ, LOW, (mux_sel_t*)&MuxDesc15, MUX_SIZE(MuxDesc15), FN_GPIO, -1, 1, 0, NULL }, // Arduino IO15 or AD7298:VIN1
{ 51, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Pullup Control for GPIO #50 - Arduino ID IO15
{ 52, NONE, NULL, 16, FN_GPIO_INPUT_HIZ, LOW, (mux_sel_t*)&MuxDesc16, MUX_SIZE(MuxDesc16), FN_GPIO, -1, 1, 0, NULL }, // Arduino IO16 or AD7298:VIN2
{ 53, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Pullup Control for GPIO #52 - Arduino ID IO16
{ 54, NONE, NULL, 17, FN_GPIO_INPUT_HIZ, LOW, (mux_sel_t*)&MuxDesc17, MUX_SIZE(MuxDesc17), FN_GPIO, -1, 1, 0, NULL }, // Arduino IO17 or AD7298:VIN3
{ 55, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Pullup Control for GPIO #54 - Arduino ID IO17
{ 56, NONE, NULL, 18, FN_GPIO_INPUT_HIZ, LOW, (mux_sel_t*)&MuxDesc18, MUX_SIZE(MuxDesc18), FN_GPIO, -1, 1, 0, NULL }, // Arduino IO18 or AD7298:VIN4
{ 57, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Pullup Control for GPIO #56 - Arduino ID IO18
{ 58, NONE, NULL, 19, FN_GPIO_INPUT_HIZ, LOW, (mux_sel_t*)&MuxDesc19, MUX_SIZE(MuxDesc19), FN_GPIO, -1, 1, 0, NULL }, // Arduino IO19 or AD7298:VIN5
{ 59, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Pullup Control for GPIO #58 - Arduino ID IO19
{ 60, NONE, NULL, NONE, NONE, HIGH, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Mux control for GPIO #58 - I2C - Arduino ID IO19/AD7298:VIN5 | Arduino ID IO18/AD7298:VIN4
{ 61, NONE, NULL, 2, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc2, MUX_SIZE(MuxDesc2), FN_GPIO, -1, 1, 0, &AltPin2 }, // Arduino ID IO2 - Alternative pin for CHANGE interrupts
{ 62, NONE, NULL, 3, FN_GPIO_INPUT_HIZ, NONE, (mux_sel_t*)&MuxDesc3, MUX_SIZE(MuxDesc3), FN_GPIO, -1, 1, 0, &AltPin3 }, // Arduino ID IO3 - Alternative pin for CHANGE interrupts
{ 63, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_RESERVED, -1, 0, 0, NULL }, // Shield Reset to h/w
{ 64, NONE, NULL, NONE, NONE, LOW, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Mux control for GPIO #14 - Arduino ID IO3 - PWM #1
{ 65, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_RESERVED, -1, 0, 0, NULL }, // PWM
{ 66, NONE, NULL, NONE, NONE, LOW, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Mux control for GPIO #0 - Arduino ID IO5 - PWM #2
{ 67, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_RESERVED, -1, 0, 0, NULL }, // PWM
{ 68, NONE, NULL, NONE, NONE, LOW, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Mux control for GPIO #1 - Arduino ID IO6 - PWM #3
{ 69, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_RESERVED, -1, 0, 0, NULL }, // PWM
{ 70, NONE, NULL, NONE, NONE, LOW, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Mux control for GPIO #4 - Arduino ID IO9 - PWM #4
{ 71, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_RESERVED, -1, 0, 0, NULL }, // PWM
{ 72, NONE, NULL, NONE, NONE, LOW, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Mux control for GPIO #14 - PWM #6 - Arduino ID IO11/SPI1_MOSI
{ 73, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_RESERVED, -1, 0, 0, NULL }, // PWM
{ 74, NONE, NULL, NONE, NONE, LOW, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Mux control for GPIO #10 - Arduino ID IO10 - PWM #5
{ 75, NONE, NULL, NONE, NONE, NONE, NULL, 0, FN_RESERVED, -1, 0, 0, NULL }, // PWM
{ 76, NONE, NULL, NONE, NONE, LOW, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Mux control for GPIO #14 - UART1_TXD - Arduino ID IO3/PWM #1
{ 77, NONE, NULL, NONE, NONE, LOW, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Mux control for GPIO #13 - Arduino ID IO2 - UART1_RXD
{ 78, NONE, NULL, NONE, NONE, LOW, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Mux control for GPIO #56 - Arduino ID IO18 - AD7298:VIN4
{ 79, NONE, NULL, NONE, NONE, LOW, NULL, 0, FN_SWITCH, -1, 0, 0, NULL }, // Mux control for GPIO #58 - Arduino ID IO19 - AD7298:VIN5
};
uint32_t sizeof_g_APinDescription;
uint32_t ardPin2DescIdx[GPIO_TOTAL];
// Sorted by Linux PWM ID
PwmDescription g_APwmDescription[] = {
{ 1, 3, -1, -1 },
{ 3, 5, -1, -1 },
{ 5, 6, -1, -1 },
{ 7, 9, -1, -1 },
{ 9, 11, -1, -1 },
{ 11, 10, -1, -1 },
};
uint32_t sizeof_g_APwmDescription;
AdcDescription g_AdcDescription[] = {
{ 0, -1 },
{ 1, -1 },
{ 2, -1 },
{ 3, -1 },
{ 4, -1 },
{ 5, -1 },
};
uint32_t sizeof_g_AdcDescription;
// Sorted Arduino Pin ID
PinState g_APinState[]=
{
/* uCurrentPwm uCurrentInput uCurrentAdc */
{ 0, 1, 0}, /* 0 */
{ 0, 1, 0}, /* 1 */
{ 0, 1, 0}, /* 2 */
{ 0, 1, 0}, /* 3 - PWM */
{ 0, 1, 0}, /* 4 */
{ 0, 1, 0}, /* 5 - PWM */
{ 0, 1, 0}, /* 6 - PWM */
{ 0, 1, 0}, /* 7 */
{ 0, 1, 0}, /* 8 */
{ 0, 1, 0}, /* 9 - PWM */
{ 0, 1, 0}, /* 10 - PWM */
{ 0, 1, 0}, /* 11 - PMW */
{ 0, 1, 0}, /* 12 */
{ 0, 1, 0}, /* 13 */
{ 0, 1, 0}, /* 14 - ADC */
{ 0, 1, 0}, /* 15 - ADC */
{ 0, 1, 0}, /* 16 - ADC */
{ 0, 1, 0}, /* 17 - ADC */
{ 0, 1, 0}, /* 18 - ADC */
{ 0, 1, 0}, /* 19 - ADC */
};
uint32_t sizeof_g_APinState;
#ifdef __cplusplus
}
#endif
RingBuffer rx_buffer1;
RingBuffer rx_buffer2;
RingBuffer rx_buffer3;
TTYUARTClass Serial(&rx_buffer1, 0, false); // ttyGS0 (USB serial)
TTYUARTClass Serial1(&rx_buffer2, 1, false); // ttyS0 (IO0/1)
TTYUARTClass Serial2(&rx_buffer3, 2, true); // ttyS1 (IO2/3, system console)
// ----------------------------------------------------------------------------
int variantPinMode(uint8_t pin, uint8_t mode)
{
/*
* Standard (sysfs) or fast-mode UIO options are available for some pins
*
* The pin at this time is set to Fast-mode by default, if available
*/
int ret = 0;
PinDescription *p = NULL;
if (pin >= GPIO_TOTAL){
trace_error("%s: invalid pin%u", __func__, pin);
return PIN_EINVAL;
}
/* Search for entry */
p = &g_APinDescription[ardPin2DescIdx[pin]];
/* Alternate entries for Fast-Mode GPIO: enable by default if available */
if (p->pAlternate) {
p->iAlternate = 1;
trace_debug("%s: enable Fast-Mode SoC GPIO for pin%u",
__func__, pin);
}
return 0;
}
int variantPinModeIRQ(uint8_t pin, uint8_t mode)
{
/*
* Pin2 and pin3 can be individually assigned to a SoC or a PCAL9555A
* GPIO.
*
* Assignment depends on the triggering mode:
* - CHANGE: PCAL9555A
* - remaining: SoC
* (NOTE - Level-triggered interrupts currently unsupported via sysfs)
*/
PinDescription *p = NULL;
int ret = 0;
if (pin >= GPIO_TOTAL){
trace_error("%s: invalid pin%u", __func__, pin);
return PIN_EINVAL;
}
/* Nothing to do if it's not pin2 nor pin3 */
if (2 != pin && 3 != pin) {
return 0;
}
/* Search for entry */
p = &g_APinDescription[ardPin2DescIdx[pin]];
if (CHANGE != mode) {
/* SoC is second entry: enable alternate */
p->iAlternate = 1;
trace_debug("%s: enable SoC GPIO for pin%u",
__func__, pin);
} else {
/* Cypress is first entry: disable alternate */
p->iAlternate = 0;
trace_debug("%s: enable PCAL9555A GPIO for pin%u", __func__,
pin);
}
return 0;
}
void turnOnPWM(uint8_t pin)
{
uint32_t ret = 0;
int gpio = 0;
if (pin >= GPIO_TOTAL){
trace_error("%s: invalid pin%u", __func__, pin);
return;
}
/* Mark PWM enabled on pin */
g_APinState[pin].uCurrentPwm = 1;
g_APinState[pin].uCurrentAdc = 0;
return;
}
void turnOffPWM(uint8_t pin)
{
int handle = 0, ret = 0;
PinDescription *p = NULL;
if (pin >= GPIO_TOTAL){
trace_error("%s: invalid pin%u", __func__, pin);
return;
}
// Scan mappings
p = &g_APinDescription[ardPin2DescIdx[pin]];
pin2alternate(&p);
if(p->ulArduinoId == pin) {
handle = pin2pwmhandle_enable(pin);
if ((int)PIN_EINVAL == handle) {
trace_error("%s: bad handle for pin%u",
__func__, pin);
return;
}
if (sysfsPwmDisable(handle)) {
trace_error("%s: couldn't disable pwm "
"on pin%u", __func__, pin);
return;
}
/* Mark PWM disabled on pin */
g_APinState[pin].uCurrentPwm = 0;
return;
}
trace_error("%s: unknown pin%u", __func__, pin);
trace_error("%s: pin manquante: %u", __func__, p->ulArduinoId);
}
void variantEnableFastGpio(int pin)
{
int entryno = ardPin2DescIdx[pin];
PinDescription *p = NULL;
int ret = 0;
if (entryno >= sizeof_g_APinDescription) {
trace_error("%s: ardPin2DescIdx[%d] == %d >= "
"sizeof_g_APinDescription", __func__, pin, entryno);
return;
}
/* Enable alternate to route to SoC */
p = &g_APinDescription[entryno];
p->iAlternate = 1;
}
void __libc_init_array(void);
void init( int argc, char * argv[] )
{
if(argc > 1)
if(Serial.init_tty(argv[1]) != 0)
return;
if(Serial1.init_tty(LINUX_SERIAL1_TTY) != 0)
return;
if(Serial2.init_tty(LINUX_SERIAL2_TTY) != 0)
return;
sizeof_g_APinDescription = sizeof(g_APinDescription)/sizeof(struct _PinDescription);
pinInit();
sizeof_g_APwmDescription = sizeof(g_APwmDescription)/sizeof(struct _PwmDescription);
pwmInit();
sizeof_g_AdcDescription = sizeof(g_AdcDescription)/sizeof(struct _AdcDescription);
adcInit();
sizeof_g_APinState = sizeof(g_APinState)/sizeof(struct _PinState);
}