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b453f6633be1053969e649f15f337457065dbe36
mraa/src/arm/banana.c
Cédric Bosdonnat b453f6633b arm: prefer /proc/device-tree 
As per Documentation/ABI/testing/sysfs-firmware-ofw, perfer
/proc/device-tree over /sys/firmware/devicetree/base as this
is the stable one.

Signed-off-by: Cédric Bosdonnat <cbosdonnat@suse.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
2017-03-02 08:32:10 -08:00

593 lines
22 KiB
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/*
* Author: Thomas Ingleby <thomas.c.ingleby@intel.com>
* Author: Michael Ring <mail@michael-ring.org>
* Copyright (c) 2014 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <mraa/common.h>
#include <mraa_internal_types.h>
#include "common.h"
#include "arm/banana.h"
#define PLATFORM_NAME_BANANA_PI "Banana Pi"
#define PLATFORM_BANANA_PI 1
#define PLATFORM_NAME_BANANA_PRO "Banana Pro"
#define PLATFORM_BANANA_PRO 2
#define MMAP_PATH "/dev/mem"
#define DT_BASE "/proc/device-tree"
#define SUNXI_BASE (0x01C20000)
#define SUNXI_BLOCK_SIZE (4 * 1024)
#define SUNXI_GPIO_DAT 0x0810
#define SUNXI_GPIO_PORT_OFFSET 0x0024
#define MAX_SIZE 64
// MMAP
static uint8_t* mmap_reg = NULL;
static int mmap_fd = 0;
static int mmap_size;
static unsigned int mmap_count = 0;
static int platform_detected = 0;
const char* serialdev[] = { "/dev/ttyS0", "/dev/ttyS1", "/dev/ttyS2", "/dev/ttyS3",
"/dev/ttyS4", "/dev/ttyS5", "/dev/ttyS6", "/dev/ttyS7" };
const char* seriallink[] = { "/sys/class/tty/ttyS0", "/sys/class/tty/ttyS1", "/sys/class/tty/ttyS2",
"/sys/class/tty/ttyS3", "/sys/class/tty/ttyS4", "/sys/class/tty/ttyS5",
"/sys/class/tty/ttyS6", "/sys/class/tty/ttyS7" };
const char* i2clink[] = {
"/sys/class/i2c-dev/i2c-0", "/sys/class/i2c-dev/i2c-1", "/sys/class/i2c-dev/i2c-2",
"/sys/class/i2c-dev/i2c-3", "/sys/class/i2c-dev/i2c-4",
};
const char* spilink[] = { "/sys/class/spidev/spidev0.0",
"/sys/class/spidev/spidev1.0",
"/sys/class/spidev/spidev2.0",
"/sys/class/spidev/spidev3.0" };
mraa_result_t
mraa_banana_spi_init_pre(int index)
{
char devpath[MAX_SIZE];
sprintf(devpath, "/dev/spidev%u.0", plat->spi_bus[index].bus_id);
if (!mraa_file_exist(devpath)) {
syslog(LOG_INFO, "spi: trying modprobe for spi-sun4i");
system("modprobe spi-sun4i >/dev/null 2>&1");
syslog(LOG_INFO, "spi: trying modprobe for spidev");
system("modprobe spidev >/dev/null 2>&1");
}
if (!mraa_file_exist(devpath)) {
syslog(LOG_ERR, "spi: Device not initialized");
syslog(LOG_ERR, "spi: If you run a kernel >=3.18 then most likely spi support does not yet "
"fully work.");
return MRAA_ERROR_NO_RESOURCES;
}
return MRAA_SUCCESS;
}
mraa_result_t
mraa_banana_i2c_init_pre(unsigned int bus)
{
char devpath[MAX_SIZE];
sprintf(devpath, "/dev/i2c-%u", bus);
if (!mraa_file_exist(devpath)) {
syslog(LOG_INFO, "i2c: trying modprobe for i2c-dev");
system("modprobe i2c-dev >/dev/null 2>&1");
}
if (!mraa_file_exist(devpath)) {
syslog(LOG_ERR, "i2c: Device not initialized");
return MRAA_ERROR_NO_RESOURCES;
}
return MRAA_SUCCESS;
}
mraa_result_t
mraa_banana_mmap_write(mraa_gpio_context dev, int value)
{
uint32_t readvalue =
*(volatile uint32_t*) (mmap_reg + SUNXI_GPIO_DAT + (dev->pin / 32) * SUNXI_GPIO_PORT_OFFSET);
volatile uint32_t* addr;
if (value) {
*(volatile uint32_t*) (mmap_reg + SUNXI_GPIO_DAT + (dev->pin / 32) * SUNXI_GPIO_PORT_OFFSET) =
(uint32_t)((1 << (dev->pin % 32)) | readvalue);
} else {
*(volatile uint32_t*) (mmap_reg + SUNXI_GPIO_DAT + (dev->pin / 32) * SUNXI_GPIO_PORT_OFFSET) =
(uint32_t)(~(1 << (dev->pin % 32)) & readvalue);
}
return MRAA_SUCCESS;
}
int
mraa_banana_mmap_read(mraa_gpio_context dev)
{
uint32_t value =
*(volatile uint32_t*) (mmap_reg + SUNXI_GPIO_DAT + (dev->pin / 32) * SUNXI_GPIO_PORT_OFFSET);
if (value & (uint32_t)(1 << (dev->pin % 32))) {
return 1;
}
return 0;
}
static mraa_result_t
mraa_banana_mmap_unsetup()
{
if (mmap_reg == NULL) {
syslog(LOG_ERR, "banana mmap: cannot unsetup NULLed mmap");
return MRAA_ERROR_INVALID_RESOURCE;
}
munmap(mmap_reg, mmap_size);
mmap_reg = NULL;
if (close(mmap_fd) != 0) {
return MRAA_ERROR_INVALID_RESOURCE;
}
return MRAA_SUCCESS;
}
mraa_result_t
mraa_banana_mmap_setup(mraa_gpio_context dev, mraa_boolean_t en)
{
if (dev == NULL) {
syslog(LOG_ERR, "Banana mmap: context not valid");
return MRAA_ERROR_INVALID_HANDLE;
}
if (en == 0) {
if (dev->mmap_write == NULL && dev->mmap_read == NULL) {
syslog(LOG_ERR, "Banana mmap: can't disable disabled mmap gpio");
return MRAA_ERROR_INVALID_PARAMETER;
}
dev->mmap_write = NULL;
dev->mmap_read = NULL;
mmap_count--;
if (mmap_count == 0) {
return mraa_banana_mmap_unsetup();
}
return MRAA_SUCCESS;
}
if (dev->mmap_write != NULL && dev->mmap_read != NULL) {
syslog(LOG_ERR, "Banana mmap: can't enable enabled mmap gpio");
return MRAA_ERROR_INVALID_PARAMETER;
}
// Might need to make some elements of this thread safe.
// For example only allow one thread to enter the following block
// to prevent mmap'ing twice.
if (mmap_reg == NULL) {
if ((mmap_fd = open(MMAP_PATH, O_RDWR)) < 0) {
syslog(LOG_ERR, "Banana mmap: unable to open /dev/mem file");
return MRAA_ERROR_INVALID_HANDLE;
}
mmap_reg = (uint8_t*) mmap(NULL, SUNXI_BLOCK_SIZE, PROT_READ | PROT_WRITE,
MAP_FILE | MAP_SHARED, mmap_fd, SUNXI_BASE);
if (mmap_reg == MAP_FAILED) {
syslog(LOG_ERR, "Banana mmap: failed to mmap");
mmap_reg = NULL;
close(mmap_fd);
return MRAA_ERROR_NO_RESOURCES;
}
}
dev->mmap_write = &mraa_banana_mmap_write;
dev->mmap_read = &mraa_banana_mmap_read;
mmap_count++;
return MRAA_SUCCESS;
}
mraa_board_t*
mraa_banana()
{
mraa_board_t* b = (mraa_board_t*) calloc(1, sizeof(mraa_board_t));
if (b == NULL) {
return NULL;
}
platform_detected = 0;
int i2c2 = -1;
int spi0 = -1;
int uart2 = -1;
int uart3 = -1;
int uart4 = -1;
int uart7 = -1;
if (mraa_file_exist(DT_BASE "/model")) {
// We are on a modern kernel, great!!!!
if (mraa_file_contains(DT_BASE "/model", "Banana Pro")) {
b->platform_name = PLATFORM_NAME_BANANA_PRO;
platform_detected = PLATFORM_BANANA_PRO;
b->phy_pin_count = MRAA_BANANA_PRO_PINCOUNT;
}
if (mraa_file_contains(DT_BASE "/model", "Banana Pi")) {
b->platform_name = PLATFORM_NAME_BANANA_PI;
platform_detected = PLATFORM_BANANA_PI;
b->phy_pin_count = MRAA_BANANA_PI_PINCOUNT;
}
if (mraa_file_contains(DT_BASE "/soc@01c00000/i2c@01c2b400/status", "okay")) {
i2c2 = 1;
}
if (mraa_file_contains(DT_BASE "/soc@01c00000/spi@01c05000/status", "okay")) {
spi0 = 1;
}
} else {
if (mraa_file_exist("/sys/class/leds/green:ph24:led1")) {
if (mraa_file_exist("/sys/class/leds/blue:pg02:led2")) {
b->platform_name = PLATFORM_NAME_BANANA_PRO;
platform_detected = PLATFORM_BANANA_PRO;
b->phy_pin_count = MRAA_BANANA_PRO_PINCOUNT;
} else {
b->platform_name = PLATFORM_NAME_BANANA_PI;
platform_detected = PLATFORM_BANANA_PI;
b->phy_pin_count = MRAA_BANANA_PI_PINCOUNT;
}
if (mraa_file_exist("/sys/class/i2c-dev/i2c-2")) {
i2c2 = 1;
}
if (mraa_file_exist("/sys/class/spi_master/spi0")) {
spi0 = 1;
}
}
}
if (platform_detected == 0) {
free(b);
syslog(LOG_ERR, "mraa: Could not detect Banana Pi or Banana Pro");
return NULL;
}
int devnum;
for (devnum = 0; devnum < 8; devnum++) {
if (mraa_link_targets(seriallink[devnum], "1c28800")) {
uart2 = devnum;
}
if (mraa_link_targets(seriallink[devnum], "1c28c00")) {
uart3 = devnum;
}
if (mraa_link_targets(seriallink[devnum], "1c29000")) {
uart4 = devnum;
}
if (mraa_link_targets(seriallink[devnum], "1c29c00")) {
uart7 = devnum;
}
}
for (devnum = 0; devnum < 5; devnum++) {
if (mraa_link_targets(i2clink[devnum], "1c2b400")) {
i2c2 = devnum;
}
}
for (devnum = 0; devnum < 4; devnum++) {
if (mraa_link_targets(spilink[devnum], "1c05000")) {
spi0 = devnum;
}
}
b->adv_func = (mraa_adv_func_t*) calloc(1, sizeof(mraa_adv_func_t));
if (b->adv_func == NULL) {
free(b);
return NULL;
}
b->pins = (mraa_pininfo_t*) calloc(b->phy_pin_count, sizeof(mraa_pininfo_t));
if (b->pins == NULL) {
free(b->adv_func);
free(b);
return NULL;
}
b->adv_func->spi_init_pre = &mraa_banana_spi_init_pre;
b->adv_func->i2c_init_pre = &mraa_banana_i2c_init_pre;
b->adv_func->gpio_mmap_setup = &mraa_banana_mmap_setup;
strncpy(b->pins[0].name, "INVALID", MRAA_PIN_NAME_SIZE);
b->pins[0].capabilities = (mraa_pincapabilities_t){ 0, 0, 0, 0, 0, 0, 0, 0 };
strncpy(b->pins[1].name, "3V3", MRAA_PIN_NAME_SIZE);
b->pins[1].capabilities = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 0 };
strncpy(b->pins[2].name, "5V", MRAA_PIN_NAME_SIZE);
b->pins[2].capabilities = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 0 };
if (i2c2 == 1) {
strncpy(b->pins[3].name, "TWI2-SDA", MRAA_PIN_NAME_SIZE); // PB21 Pin53 TWI2-SDA
b->pins[3].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 1, 0, 0 };
} else {
strncpy(b->pins[3].name, "PB21", MRAA_PIN_NAME_SIZE); // PB21 Pin53 TWI2-SDA
b->pins[3].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 };
}
b->pins[3].gpio.pinmap = 53;
strncpy(b->pins[4].name, "5V", MRAA_PIN_NAME_SIZE);
b->pins[4].capabilities = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 0 };
if (i2c2 == 1) {
strncpy(b->pins[5].name, "TWI2-SCK", MRAA_PIN_NAME_SIZE); // PB20 Pin52 TWI2-SCK
b->pins[5].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 1, 0, 0 };
} else {
strncpy(b->pins[5].name, "PB20", MRAA_PIN_NAME_SIZE); // PB20 Pin52 TWI2-SCK
b->pins[5].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 };
}
b->pins[5].gpio.pinmap = 52;
strncpy(b->pins[6].name, "GND", MRAA_PIN_NAME_SIZE);
b->pins[6].capabilities = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 0 };
if (platform_detected == PLATFORM_BANANA_PRO) {
strncpy(b->pins[7].name, "PH02", MRAA_PIN_NAME_SIZE); // PH2 Pin226
b->pins[7].gpio.pinmap = 226;
} else {
strncpy(b->pins[7].name, "PI03", MRAA_PIN_NAME_SIZE); // PI3 Pin259 PWM
b->pins[7].gpio.pinmap = 259;
}
b->pins[7].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 };
if (platform_detected == PLATFORM_BANANA_PRO) {
strncpy(b->pins[8].name, "UART4_TX", MRAA_PIN_NAME_SIZE); // PH4 Pin228 UART4_TX
b->pins[8].gpio.pinmap = 228;
} else {
strncpy(b->pins[8].name, "UART3_TX", MRAA_PIN_NAME_SIZE); // PH0 Pin224 UART3_TX
b->pins[8].gpio.pinmap = 224;
}
b->pins[8].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 1 };
strncpy(b->pins[9].name, "GND", MRAA_PIN_NAME_SIZE);
b->pins[9].capabilities = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 0 };
if (platform_detected == PLATFORM_BANANA_PRO) {
strncpy(b->pins[10].name, "UART4_RX", MRAA_PIN_NAME_SIZE); // PH5 Pin229 UART4_RX
b->pins[10].gpio.pinmap = 229;
} else {
strncpy(b->pins[10].name, "UART3_RX", MRAA_PIN_NAME_SIZE); // PH1 Pin225 UART3_RX
b->pins[10].gpio.pinmap = 225;
}
b->pins[10].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 1 };
strncpy(b->pins[11].name, "PI19", MRAA_PIN_NAME_SIZE); // PI19 Pin275 IO+UART2_RX
b->pins[11].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 1 };
b->pins[11].gpio.pinmap = 275;
if (platform_detected == PLATFORM_BANANA_PRO) {
strncpy(b->pins[12].name, "PI03", MRAA_PIN_NAME_SIZE); // PI3 Pin259 PWM
b->pins[12].gpio.pinmap = 259;
} else {
strncpy(b->pins[12].name, "PH02", MRAA_PIN_NAME_SIZE); // PH2 Pin226
b->pins[12].gpio.pinmap = 226;
}
b->pins[12].capabilities = (mraa_pincapabilities_t){ 1, 1, 1, 0, 0, 0, 0, 0 };
strncpy(b->pins[13].name, "PI18", MRAA_PIN_NAME_SIZE); // PI18 Pin274 UART2_TX
b->pins[13].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 1 };
b->pins[13].gpio.pinmap = 274;
strncpy(b->pins[14].name, "GND", MRAA_PIN_NAME_SIZE);
b->pins[14].capabilities = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 0 };
strncpy(b->pins[15].name, "PI17", MRAA_PIN_NAME_SIZE); // PI17 Pin273 UART2_CTS
b->pins[15].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 };
b->pins[15].gpio.pinmap = 273;
strncpy(b->pins[16].name, "PH20", MRAA_PIN_NAME_SIZE); // PH20 Pin 244 CAN_TX
b->pins[16].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 };
b->pins[16].gpio.pinmap = 244;
strncpy(b->pins[17].name, "3V3", MRAA_PIN_NAME_SIZE);
b->pins[17].capabilities = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 0 };
strncpy(b->pins[18].name, "PH21", MRAA_PIN_NAME_SIZE); // PH21 Pin245 CAN_RX
b->pins[18].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 };
b->pins[18].gpio.pinmap = 245;
strncpy(b->pins[19].name, "SPI0MOSI", MRAA_PIN_NAME_SIZE); // PI12 SPI0
b->pins[19].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 1, 0, 0, 0 };
b->pins[19].gpio.pinmap = 268;
strncpy(b->pins[20].name, "GND", MRAA_PIN_NAME_SIZE);
b->pins[20].capabilities = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 0 };
strncpy(b->pins[21].name, "SPI0MISO", MRAA_PIN_NAME_SIZE); // PI13 SPI0
b->pins[21].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 1, 0, 0, 0 };
b->pins[21].gpio.pinmap = 269;
strncpy(b->pins[22].name, "PI16", MRAA_PIN_NAME_SIZE); // PI16 UART2_RTS
b->pins[22].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 1 };
b->pins[22].gpio.pinmap = 272;
strncpy(b->pins[23].name, "SPI0CLK", MRAA_PIN_NAME_SIZE); // PI11 SPI0
b->pins[23].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 1, 0, 0, 0 };
b->pins[23].gpio.pinmap = 267;
strncpy(b->pins[24].name, "SPI0CS0", MRAA_PIN_NAME_SIZE); // PI10 SPI0
b->pins[24].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 1, 0, 0, 0 };
b->pins[24].gpio.pinmap = 266;
strncpy(b->pins[25].name, "GND", MRAA_PIN_NAME_SIZE);
b->pins[25].capabilities = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 0 };
strncpy(b->pins[26].name, "SPI0CS1", MRAA_PIN_NAME_SIZE); // PI14 SPI0
b->pins[26].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 1, 0, 0, 0 };
b->pins[26].gpio.pinmap = 270;
if (platform_detected == PLATFORM_BANANA_PI) {
strncpy(b->pins[27].name, "5V", MRAA_PIN_NAME_SIZE);
b->pins[27].capabilities = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 0 };
strncpy(b->pins[28].name, "3V3", MRAA_PIN_NAME_SIZE);
b->pins[28].capabilities = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 0 };
strncpy(b->pins[29].name, "PH05", MRAA_PIN_NAME_SIZE); // PH5
b->pins[29].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 };
b->pins[29].gpio.pinmap = 229;
strncpy(b->pins[30].name, "PI21", MRAA_PIN_NAME_SIZE); // PI21 UART7_RX
b->pins[30].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 1 };
b->pins[30].gpio.pinmap = 277;
strncpy(b->pins[31].name, "PH03", MRAA_PIN_NAME_SIZE); // PH3
b->pins[31].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 };
b->pins[31].gpio.pinmap = 227;
strncpy(b->pins[32].name, "PI20", MRAA_PIN_NAME_SIZE); // PI20 UART7_TX
b->pins[32].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 1 };
b->pins[32].gpio.pinmap = 276;
strncpy(b->pins[33].name, "GND", MRAA_PIN_NAME_SIZE);
b->pins[33].capabilities = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 0 };
strncpy(b->pins[34].name, "GND", MRAA_PIN_NAME_SIZE);
b->pins[34].capabilities = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 0 };
}
if (platform_detected == PLATFORM_BANANA_PRO) {
strncpy(b->pins[27].name, "HAT_SDA", MRAA_PIN_NAME_SIZE); // PI1 TWI3-SDA i2c3
b->pins[27].capabilities = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 0 };
b->pins[27].gpio.pinmap = 257;
strncpy(b->pins[28].name, "HAT_SCK", MRAA_PIN_NAME_SIZE); // PI0 TWI3-SCK i2c3
b->pins[28].capabilities = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 0 };
b->pins[28].gpio.pinmap = 256;
strncpy(b->pins[29].name, "PB03", MRAA_PIN_NAME_SIZE); // PB3 IR0_TX/SPDIF_MCLK
b->pins[29].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 };
b->pins[29].gpio.pinmap = 35;
strncpy(b->pins[30].name, "GND", MRAA_PIN_NAME_SIZE);
b->pins[30].capabilities = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 0 };
strncpy(b->pins[31].name, "PI21", MRAA_PIN_NAME_SIZE); // PI21 UART7_RX
b->pins[31].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 1 };
b->pins[31].gpio.pinmap = 277;
strncpy(b->pins[32].name, "PI20", MRAA_PIN_NAME_SIZE); // PI20 UART7_TX
b->pins[32].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 1 };
b->pins[32].gpio.pinmap = 276;
strncpy(b->pins[33].name, "PB13", MRAA_PIN_NAME_SIZE); // PB13 SPDIF_D0
b->pins[33].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 };
b->pins[33].gpio.pinmap = 45;
strncpy(b->pins[34].name, "GND", MRAA_PIN_NAME_SIZE);
b->pins[34].capabilities = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 0 };
strncpy(b->pins[35].name, "PB07", MRAA_PIN_NAME_SIZE); // PB07 I2S0_LRCK
b->pins[35].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 };
b->pins[35].gpio.pinmap = 39;
strncpy(b->pins[36].name, "PB06", MRAA_PIN_NAME_SIZE); // PB06 I2S0BCLK
b->pins[36].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 };
b->pins[36].gpio.pinmap = 38;
strncpy(b->pins[37].name, "PB05", MRAA_PIN_NAME_SIZE); // PB05 I2S0MCK
b->pins[37].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 };
b->pins[37].gpio.pinmap = 37;
strncpy(b->pins[38].name, "PB12", MRAA_PIN_NAME_SIZE); // PB12 I2S0_DI
b->pins[38].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 };
b->pins[38].gpio.pinmap = 44;
strncpy(b->pins[39].name, "GND", MRAA_PIN_NAME_SIZE);
b->pins[39].capabilities = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 0 };
strncpy(b->pins[40].name, "PB08", MRAA_PIN_NAME_SIZE); // PB08 I2S0_DO0
b->pins[40].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 };
b->pins[40].gpio.pinmap = 40;
}
b->aio_count = 0;
b->adc_raw = 0;
b->adc_supported = 0;
b->pwm_default_period = 500;
b->pwm_max_period = 2147483;
b->pwm_min_period = 1;
b->gpio_count = 0;
int i;
for (i = 0; i < b->phy_pin_count; i++) {
if (b->pins[i].capabilities.gpio) {
b->gpio_count++;
}
}
// BUS DEFINITIONS
b->i2c_bus_count = 0;
b->def_i2c_bus = 0;
if (i2c2 >= 0) {
b->i2c_bus[b->i2c_bus_count].bus_id = i2c2;
b->i2c_bus[b->i2c_bus_count].sda = 3;
b->i2c_bus[b->i2c_bus_count].scl = 5;
b->i2c_bus_count++;
}
b->spi_bus_count = 0;
b->def_spi_bus = 0;
if (spi0 >= 0) {
b->spi_bus[b->spi_bus_count].bus_id = spi0;
b->spi_bus[b->spi_bus_count].slave_s = 0;
b->spi_bus[b->spi_bus_count].cs = 24;
b->spi_bus[b->spi_bus_count].mosi = 19;
b->spi_bus[b->spi_bus_count].miso = 21;
b->spi_bus[b->spi_bus_count].sclk = 23;
b->spi_bus_count++;
}
b->uart_dev_count = 0;
b->def_uart_dev = 0;
if ((uart3 >= 0) && (platform_detected == PLATFORM_BANANA_PI)) {
b->def_uart_dev = b->uart_dev_count;
b->uart_dev[b->uart_dev_count].device_path = serialdev[uart3];
b->uart_dev[b->uart_dev_count].rx = 11;
b->uart_dev[b->uart_dev_count].tx = 13;
b->uart_dev_count++;
}
if ((uart4 >= 0) && (platform_detected == PLATFORM_BANANA_PRO)) {
b->def_uart_dev = b->uart_dev_count;
b->uart_dev[b->uart_dev_count].device_path = serialdev[uart4];
b->uart_dev[b->uart_dev_count].rx = 10;
b->uart_dev[b->uart_dev_count].tx = 8;
b->uart_dev_count++;
}
if (uart7 >= 0) {
b->uart_dev[b->uart_dev_count].device_path = serialdev[uart7];
if (platform_detected == PLATFORM_BANANA_PRO) {
b->uart_dev[b->uart_dev_count].rx = 31;
b->uart_dev[b->uart_dev_count].tx = 32;
} else {
b->uart_dev[b->uart_dev_count].rx = 30;
b->uart_dev[b->uart_dev_count].tx = 32;
}
b->uart_dev_count++;
}
if (uart2 >= 0) {
b->uart_dev[b->uart_dev_count].device_path = serialdev[uart2];
b->uart_dev[b->uart_dev_count].rx = 11;
b->uart_dev[b->uart_dev_count].tx = 13;
b->uart_dev_count++;
}
return b;
}
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