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authorAmir Hammad <amir.hammad@hotmail.com>2015-04-01 16:22:05 +0200
committerAmir Hammad <amir.hammad@hotmail.com>2015-04-01 16:22:05 +0200
commit7acc6fe474766788687a5257be21ac549bed77f3 (patch)
tree859e621840f9362e60fec116b7528ad16202871f /src
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libusbhost: Open source USB host stack for embedded devices
First public version, date: 1.4.2015 Signed-off-by: Amir Hammad <amir.hammad@hotmail.com>
Diffstat (limited to 'src')
-rw-r--r--src/demo.c186
-rw-r--r--src/usart_helpers.c287
-rw-r--r--src/usart_helpers.h56
-rw-r--r--src/usbh_driver_gp_xbox.c420
-rw-r--r--src/usbh_driver_hid_mouse.c294
-rw-r--r--src/usbh_driver_hub.c865
-rw-r--r--src/usbh_driver_hub_private.h108
-rw-r--r--src/usbh_hubbed.c634
-rw-r--r--src/usbh_lld_stm32f4.c1048
9 files changed, 3898 insertions, 0 deletions
diff --git a/src/demo.c b/src/demo.c
new file mode 100644
index 0000000..f4ef456
--- /dev/null
+++ b/src/demo.c
@@ -0,0 +1,186 @@
+/*
+ * This file is part of the libusbhost library
+ * hosted at http://github.com/libusbhost/libusbhost
+ *
+ * Copyright (C) 2015 Amir Hammad <amir.hammad@hotmail.com>
+ *
+ *
+ * libusbhost 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "usart_helpers.h" /// provides LOG_PRINTF macros used for debugging
+#include "usbh_hubbed.h" /// provides usbh_init() and usbh_poll()
+#include "usbh_lld_stm32f4.h" /// provides low level usb host driver for stm32f4 platform
+#include "usbh_driver_hid_mouse.h" /// provides usb device driver Human Interface Device - type mouse
+#include "usbh_driver_hub.h" /// provides usb full speed hub driver (Low speed devices on hub are not supported)
+#include "usbh_driver_gp_xbox.h" /// provides usb device driver for Gamepad: Microsoft XBOX compatible Controller
+
+ // STM32f407 compatible
+#include <libopencm3/stm32/rcc.h>
+#include <libopencm3/stm32/gpio.h>
+#include <libopencm3/stm32/usart.h>
+#include <libopencm3/stm32/timer.h>
+#include <libopencm3/stm32/otg_hs.h>
+#include <libopencm3/stm32/otg_fs.h>
+
+#include <stdint.h>
+#include <string.h>
+#include <stdlib.h>
+
+static inline void delay_ms_busy_loop(uint32_t ms)
+{
+ volatile uint32_t i;
+ for (i = 0; i < 14903*ms; i++);
+}
+
+
+/* Set STM32 to 168 MHz. */
+static void clock_setup(void)
+{
+ rcc_clock_setup_hse_3v3(&hse_8mhz_3v3[CLOCK_3V3_168MHZ]);
+
+ // GPIO
+ rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPAEN); // OTG_FS + button
+ rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPBEN); // OTG_HS
+ rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPCEN); // USART + OTG_FS charge pump
+ rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPDEN); // LEDS
+
+ // periphery
+ rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_USART6EN);// USART
+ rcc_peripheral_enable_clock(&RCC_AHB2ENR, RCC_AHB2ENR_OTGFSEN);
+ rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_OTGHSEN);
+}
+
+static void gpio_setup(void)
+{
+ /* Set GPIO12-15 (in GPIO port D) to 'output push-pull'. */
+ gpio_mode_setup(GPIOD, GPIO_MODE_OUTPUT,
+ GPIO_PUPD_NONE, GPIO12 | GPIO13 | GPIO14 | GPIO15);
+
+ /* Set */
+ gpio_mode_setup(GPIOC, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO0);
+ gpio_clear(GPIOC, GPIO0);
+
+ // OTG_FS
+ gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO11 | GPIO12);
+ gpio_set_af(GPIOA, GPIO_AF10, GPIO11 | GPIO12);
+
+ // OTG_HS
+ gpio_mode_setup(GPIOB, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO15 | GPIO14);
+ gpio_set_af(GPIOB, GPIO_AF12, GPIO14 | GPIO15);
+
+ // USART TX
+ gpio_mode_setup(GPIOC, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO6 | GPIO7);
+ gpio_set_af(GPIOC, GPIO_AF8, GPIO6 | GPIO7);
+
+ // button
+ gpio_mode_setup(GPIOA, GPIO_MODE_INPUT, GPIO_PUPD_NONE, GPIO0);
+}
+
+static const usbh_dev_driver_t *device_drivers[] = {
+ &usbh_hub_driver,
+ &usbh_hid_mouse_driver,
+ &usbh_gp_xbox_driver,
+ 0
+};
+
+static void gp_xbox_update(uint8_t device_id, gp_xbox_packet_t packet)
+{
+ (void)device_id;
+ (void)packet;
+ LOG_PRINTF("update %d: %d %d \r\n", device_id, packet.axis_left_x, packet.buttons & GP_XBOX_BUTTON_A);
+}
+
+
+static void gp_xbox_connected(uint8_t device_id)
+{
+ (void)device_id;
+ LOG_PRINTF("connected %d", device_id);
+}
+
+static void gp_xbox_disconnected(uint8_t device_id)
+{
+ (void)device_id;
+ LOG_PRINTF("disconnected %d", device_id);
+}
+
+static const gp_xbox_config_t gp_xbox_config = {
+ .update = &gp_xbox_update,
+ .notify_connected = &gp_xbox_connected,
+ .notify_disconnected = &gp_xbox_disconnected
+};
+
+static void mouse_in_message_handler(uint8_t device_id, const uint8_t *data)
+{
+ (void)device_id;
+ (void)data;
+ // print only first 4 bytes, since every mouse should have at least these four set.
+ // Report descriptors are not read by driver for now, so we do not know what each byte means
+ LOG_PRINTF("MOUSE EVENT %02X %02X %02X %02X \r\n", data[0], data[1], data[2], data[3]);
+}
+
+static const hid_mouse_config_t mouse_config = {
+ .mouse_in_message_handler = &mouse_in_message_handler
+};
+
+int main(void)
+{
+ clock_setup();
+ gpio_setup();
+
+#ifdef USART_DEBUG
+ usart_init(USART6, 921600);
+#endif
+ LOG_PRINTF("\r\n\r\n\r\n\r\n\r\n###################\r\nInit\r\n");
+
+ /**
+ * device driver initialization
+ *
+ * Pass configuration struct where the callbacks are defined
+ */
+ hid_mouse_driver_init(&mouse_config);
+ hub_driver_init();
+ gp_xbox_driver_init(&gp_xbox_config);
+
+ gpio_set(GPIOD, GPIO13);
+
+ /**
+ * Pass array of supported low level drivers
+ * In case of stm32f407, there are up to two supported OTG hosts on one chip.
+ * Each one can be enabled or disabled in config.mk - optimization for speed
+ *
+ * Pass array of supported device drivers
+ */
+ usbh_init(usbh_lld_stm32f4_drivers, device_drivers);
+ gpio_clear(GPIOD, GPIO13);
+
+ LOG_PRINTF("USB init complete\r\n");
+
+ uint32_t i = 0;
+
+ while (1) {
+ LOG_FLUSH();
+
+ // Toggle some led
+ gpio_set(GPIOD, GPIO14);
+ usbh_poll(i);
+ gpio_clear(GPIOD, GPIO14);
+
+ delay_ms_busy_loop(1);
+ i += 1000;
+ }
+
+ return 0;
+}
diff --git a/src/usart_helpers.c b/src/usart_helpers.c
new file mode 100644
index 0000000..31a7556
--- /dev/null
+++ b/src/usart_helpers.c
@@ -0,0 +1,287 @@
+/*
+ * This file is part of the libusbhost library
+ * hosted at http://github.com/libusbhost/libusbhost
+ *
+ * Copyright (C) 2015 Amir Hammad <amir.hammad@hotmail.com>
+ *
+ *
+ * libusbhost 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+
+#include "usart_helpers.h"
+
+#include <string.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <libopencm3/stm32/usart.h>
+#include <libopencm3/stm32/gpio.h>
+
+
+#ifndef USART_DEBUG
+
+void usart_init(uint32_t usart, uint32_t baudrate)
+{
+ (void)usart;
+ (void)baudrate;
+}
+void usart_printf(const char *str, ...)
+{
+ (void)str;
+}
+void usart_vprintf(const char *str, va_list va)
+{
+ (void)va;
+ (void)str;
+}
+void usart_fifo_send(void){}
+
+void usart_call_cmd(struct usart_commands * commands)
+{
+ (void)commands;
+}
+void usart_interrupt(void){}
+
+#else
+#warning compiling with debug functions
+
+#define USART_FIFO_OUT_SIZE (4096)
+uint8_t usart_fifo_out_data[USART_FIFO_OUT_SIZE];
+uint32_t usart_fifo_out_len = 0;
+uint32_t usart_fifo_out_index = 0;
+
+#define USART_FIFO_IN_SIZE (1024)
+uint8_t usart_fifo_in_data[USART_FIFO_IN_SIZE];
+uint32_t usart_fifo_in_len = 0;
+uint32_t usart_fifo_in_index = 0;
+
+static uint32_t usart = 0;
+
+static uint8_t usart_fifo_pop(void)
+{
+ uint8_t ret;
+ usart_fifo_out_len--;
+ ret = usart_fifo_out_data[usart_fifo_out_index];
+ usart_fifo_out_index++;
+ if (usart_fifo_out_index == USART_FIFO_OUT_SIZE ) {
+ usart_fifo_out_index = 0;
+ }
+ return ret;
+}
+
+static void usart_fifo_push(uint8_t aData)
+{
+ uint32_t i;
+ if( (usart_fifo_out_len + 1) == USART_FIFO_OUT_SIZE)//overflow
+ {
+ usart_fifo_out_len = 0;
+ LOG_PRINTF("OVERFLOW!");
+ return;
+ }
+
+ i = usart_fifo_out_index + usart_fifo_out_len;
+ if (i >= USART_FIFO_OUT_SIZE) {
+ i -= USART_FIFO_OUT_SIZE;
+ }
+ usart_fifo_out_data[i] = aData;
+ usart_fifo_out_len++;
+}
+
+
+static uint8_t usart_fifo_in_pop(void)
+{
+ uint8_t ret;
+ usart_fifo_in_len--;
+ ret = usart_fifo_in_data[usart_fifo_in_index];
+ usart_fifo_in_index++;
+ if (usart_fifo_in_index == USART_FIFO_IN_SIZE ) {
+ usart_fifo_in_index = 0;
+ }
+ return ret;
+}
+
+static void usart_fifo_in_push(uint8_t aData)
+{
+ uint32_t i;
+ if( (usart_fifo_in_len + 1) == USART_FIFO_IN_SIZE)//overflow
+ {
+ usart_fifo_in_len = 0;
+ return;
+ }
+
+ i = usart_fifo_in_index + usart_fifo_in_len;
+ if (i >= USART_FIFO_IN_SIZE) {
+ i -= USART_FIFO_IN_SIZE;
+ }
+ usart_fifo_in_data[i] = aData;
+ usart_fifo_in_len++;
+}
+
+
+static void usart_write(const char * data, uint32_t len)
+{
+ uint32_t i;
+ for(i = 0; i < len; i++)
+ {
+ usart_fifo_push(data[i]);
+ }
+}
+void usart_printf(const char *str, ...)
+{
+ va_list va;
+ va_start(va, str);
+ usart_vprintf(str, va);
+ va_end(va);
+
+}
+
+void usart_vprintf(const char *str, va_list va)
+{
+ char databuffer[128];
+ int i = vsnprintf(databuffer, 128, str, va);
+ if (i > 0) {
+ usart_write(databuffer, i);
+ }
+}
+
+
+
+void usart_init(uint32_t arg_usart, uint32_t baudrate)
+{
+ usart_set_baudrate(arg_usart, baudrate);
+ usart_set_databits(arg_usart, 8);
+ usart_set_flow_control(arg_usart, USART_FLOWCONTROL_NONE);
+ usart_set_mode(arg_usart, USART_MODE_TX | USART_MODE_RX);
+ usart_set_parity(arg_usart, USART_PARITY_NONE);
+ usart_set_stopbits(arg_usart, USART_STOPBITS_1);
+
+ usart_enable_rx_interrupt(arg_usart);
+ usart_enable(arg_usart);
+ usart = arg_usart;
+}
+void usart_interrupt(void)
+{
+ if (usart_get_interrupt_source(usart, USART_SR_RXNE)) {
+ uint8_t data = usart_recv(usart);
+ usart_fifo_in_push(data);
+ if ( data != 3 && data != '\r' && data != '\n') {
+ usart_fifo_push(data);
+ } else {
+ LOG_PRINTF("\r\n>>");
+ }
+ }
+}
+
+void usart_fifo_send(void)
+{
+ while(usart_fifo_out_len) {
+ uint8_t data = usart_fifo_pop();
+ usart_wait_send_ready(usart);
+ usart_send(usart, data);
+ }
+}
+static char command[128];
+static uint8_t command_len = 0;
+static uint8_t command_argindex = 0;
+
+static uint8_t usart_read_command(void)
+{
+ uint32_t fifo_len = usart_fifo_in_len;
+ while (fifo_len) {
+ uint8_t data = usart_fifo_in_pop();
+
+ if ((data >= 'A') && (data <= 'Z')) {
+ data += 'a'-'A';
+ }
+
+ if (((data >= 'a') && (data <= 'z')) || ((data >='0') && (data<='9'))) {
+ command[command_len++] = data;
+ } else if (data == ' ') {
+ if (command_len) {
+ if (command_argindex == 0) {
+ command[command_len++] = 0;
+ command_argindex = command_len;
+ } else {
+ command[command_len++] = ' ';
+ }
+ }
+ } else if (data == '\r' || data == '\n') {
+ if (command_len) {
+ command[command_len++] = 0;
+ if (!command_argindex) {
+ command_argindex = command_len;
+ }
+ return 1;
+ }
+ } else if (data == 127) {
+ if (command_len) {
+ if (command_argindex) {
+ if (command_len == command_argindex) {
+ command_argindex = 0;
+ }
+ }
+ command[command_len] = '\0';
+ command_len--;
+ }
+ } else if (data == 3) {
+ command_len = 0;
+ command_argindex = 0;
+ } else {
+ LOG_PRINTF("%d ",data);
+ }
+
+ fifo_len--;
+ }
+ return 0;
+}
+void usart_call_cmd(struct usart_commands * commands)
+{
+ uint32_t i = 0;
+ if(!usart_read_command()) {
+ return;
+ }
+ if (!command_len) {
+ LOG_PRINTF("#2");
+ return;
+ }
+ //~ for (i = 0; i < command_len; i++) {
+ //~ LOG_PRINTF("%c", command[i]);
+ //~ }
+ i=0;
+ while(commands[i].cmd != NULL) {
+ if (!strcmp((char*)command, (char*)commands[i].cmd)) {
+ if (commands[i].callback) {
+ if(command_argindex == command_len) {
+ commands[i].callback(NULL);
+ } else {
+ commands[i].callback(&command[command_argindex]);
+ }
+ }
+ usart_write("\r\n>>",4);
+ command_len = 0;
+ command_argindex = 0;
+ return;
+ } else {
+
+ }
+ i++;
+ }
+ command_len = 0;
+ command_argindex = 0;
+ LOG_PRINTF("INVALID COMMAND\r\n>>");
+}
+
+#endif
diff --git a/src/usart_helpers.h b/src/usart_helpers.h
new file mode 100644
index 0000000..2a2f561
--- /dev/null
+++ b/src/usart_helpers.h
@@ -0,0 +1,56 @@
+/*
+ * This file is part of the libusbhost library
+ * hosted at http://github.com/libusbhost/libusbhost
+ *
+ * Copyright (C) 2015 Amir Hammad <amir.hammad@hotmail.com>
+ *
+ *
+ * libusbhost 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef USBH_USART_HELPERS_H
+#define USBH_USART_HELPERS_H
+
+#include "usbh_hubbed.h"
+#include <stdint.h>
+#include <stdarg.h>
+
+BEGIN_DECLS
+
+struct usart_commands{
+ const char * cmd;
+ void (*callback)(const char * arg);
+};
+
+
+void usart_init(uint32_t usart, uint32_t baudrate);
+void usart_printf(const char *str, ...);
+void usart_vprintf(const char *str, va_list va);
+void usart_fifo_send(void);
+
+void usart_call_cmd(struct usart_commands * commands);
+void usart_interrupt(void);
+
+#ifdef USART_DEBUG
+#define LOG_PRINTF(format, ...) usart_printf(format, ##__VA_ARGS__);
+#define LOG_FLUSH() usart_fifo_send()
+#else
+#define LOG_PRINTF(dummy, ...) ((void)dummy)
+#define LOG_FLUSH()
+#endif
+
+END_DECLS
+
+#endif
diff --git a/src/usbh_driver_gp_xbox.c b/src/usbh_driver_gp_xbox.c
new file mode 100644
index 0000000..52955d9
--- /dev/null
+++ b/src/usbh_driver_gp_xbox.c
@@ -0,0 +1,420 @@
+/*
+ * This file is part of the libusbhost library
+ * hosted at http://github.com/libusbhost/libusbhost
+ *
+ * Copyright (C) 2015 Amir Hammad <amir.hammad@hotmail.com>
+ *
+ *
+ * libusbhost 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+
+#include "usart_helpers.h"
+#include "usbh_driver_gp_xbox.h"
+#include "driver/usbh_device_driver.h"
+
+#include <stdint.h>
+#include <libopencm3/usb/usbstd.h>
+
+static void *gp_xbox_init(void *usbh_dev);
+static bool gp_xbox_analyze_descriptor(void *drvdata, void *descriptor);
+static void gp_xbox_poll(void *drvdata, uint32_t tflp);
+static void gp_xbox_remove(void *drvdata);
+
+static const usbh_dev_driver_info_t usbh_gp_xbox_driver_info = {
+ .deviceClass = 0xff,
+ .deviceSubClass = 0xff,
+ .deviceProtocol = 0xff,
+ .idVendor = 0x045e,
+ .idProduct = 0x028e,
+ .ifaceClass = 0xff,
+ .ifaceSubClass = 93,
+ .ifaceProtocol = 0x01
+};
+
+const usbh_dev_driver_t usbh_gp_xbox_driver = {
+ .init = gp_xbox_init,
+ .analyze_descriptor = gp_xbox_analyze_descriptor,
+ .poll = gp_xbox_poll,
+ .remove = gp_xbox_remove,
+ .info = &usbh_gp_xbox_driver_info
+};
+
+enum STATES {
+ STATE_INACTIVE,
+ STATE_READING_COMPLETE,
+ STATE_READING_REQUEST,
+ STATE_SET_CONFIGURATION_REQUEST,
+ STATE_SET_CONFIGURATION_EMPTY_READ,
+ STATE_SET_CONFIGURATION_COMPLETE
+};
+
+#define GP_XBOX_CORRECT_TRANSFERRED_LENGTH 20
+
+struct _gp_xbox_device {
+ usbh_device_t *usbh_device;
+ uint8_t buffer[USBH_GP_XBOX_BUFFER];
+ uint16_t endpoint_in_maxpacketsize;
+ uint8_t endpoint_in_address;
+ enum STATES state_next;
+ uint8_t endpoint_in_toggle;
+ uint8_t device_id;
+ uint8_t configuration_value;
+};
+typedef struct _gp_xbox_device gp_xbox_device_t;
+
+static gp_xbox_device_t gp_xbox_device[USBH_GP_XBOX_MAX_DEVICES];
+static const gp_xbox_config_t *gp_xbox_config;
+
+static bool initialized = false;
+static void read_gp_xbox_in(gp_xbox_device_t *gp_xbox);
+
+void gp_xbox_driver_init(const gp_xbox_config_t *config)
+{
+ if (!config) {
+ return;
+ }
+ initialized = true;
+ uint32_t i;
+ gp_xbox_config = config;
+ for (i = 0; i < USBH_GP_XBOX_MAX_DEVICES; i++) {
+ gp_xbox_device[i].state_next = STATE_INACTIVE;
+ }
+}
+
+/**
+ *
+ *
+ */
+static void *gp_xbox_init(void *usbh_dev)
+{
+ if (!initialized) {
+ LOG_PRINTF("driver not initialized");
+ return false;
+ }
+
+ uint32_t i;
+ gp_xbox_device_t *drvdata = 0;
+
+ // find free data space for gp_xbox device
+ for (i = 0; i < USBH_GP_XBOX_MAX_DEVICES; i++) {
+ if (gp_xbox_device[i].state_next == STATE_INACTIVE) {
+ drvdata = &gp_xbox_device[i];
+ drvdata->device_id = i;
+ drvdata->endpoint_in_address = 0;
+ drvdata->endpoint_in_toggle = 0;
+ drvdata->usbh_device = usbh_dev;
+ break;
+ }
+ }
+
+ return drvdata;
+}
+
+/**
+ * Returns true if all needed data are parsed
+ */
+static bool gp_xbox_analyze_descriptor(void *drvdata, void *descriptor)
+{
+ gp_xbox_device_t *gp_xbox = drvdata;
+ uint8_t desc_type = ((uint8_t *)descriptor)[1];
+ switch (desc_type) {
+ case USB_DT_CONFIGURATION:
+ {
+ struct usb_config_descriptor *cfg = (struct usb_config_descriptor*)descriptor;
+ gp_xbox->configuration_value = cfg->bConfigurationValue;
+ }
+ break;
+ case USB_DT_DEVICE:
+ break;
+ case USB_DT_INTERFACE:
+ break;
+ case USB_DT_ENDPOINT:
+ {
+ struct usb_endpoint_descriptor *ep = (struct usb_endpoint_descriptor*)descriptor;
+ if ((ep->bmAttributes&0x03) == USB_ENDPOINT_ATTR_INTERRUPT) {
+ uint8_t epaddr = ep->bEndpointAddress;
+ if (epaddr & (1<<7)) {
+ gp_xbox->endpoint_in_address = epaddr&0x7f;
+ if (ep->wMaxPacketSize < USBH_GP_XBOX_BUFFER) {
+ gp_xbox->endpoint_in_maxpacketsize = ep->wMaxPacketSize;
+ } else {
+ gp_xbox->endpoint_in_maxpacketsize = USBH_GP_XBOX_BUFFER;
+ }
+ }
+
+ if (gp_xbox->endpoint_in_address) {
+ gp_xbox->state_next = STATE_SET_CONFIGURATION_REQUEST;
+ return true;
+ }
+ }
+ }
+ break;
+ // TODO Class Specific descriptors
+ default:
+ break;
+ }
+ return false;
+}
+
+static void parse_data(usbh_device_t *dev)
+{
+ gp_xbox_device_t *gp_xbox = dev->drvdata;
+
+ uint8_t *packet = gp_xbox->buffer;
+
+ gp_xbox_packet_t gp_xbox_packet;
+ gp_xbox_packet.buttons = 0;
+
+ // DPAD
+ const uint8_t data1 = packet[2];
+ const uint8_t data2 = packet[3];
+ if (data1 & (1 << 0)) {
+ gp_xbox_packet.buttons |= GP_XBOX_DPAD_TOP;
+ }
+
+ if (data1 & (1 << 1)) {
+ gp_xbox_packet.buttons |= GP_XBOX_DPAD_BOTTOM;
+ }
+
+ if (data1 & (1 << 2)) {
+ gp_xbox_packet.buttons |= GP_XBOX_DPAD_LEFT;
+ }
+
+ if (data1 & (1 << 3)) {
+ gp_xbox_packet.buttons |= GP_XBOX_DPAD_RIGHT;
+ }
+
+ // Start + select
+
+ if (data1 & (1 << 4)) {
+ gp_xbox_packet.buttons |= GP_XBOX_BUTTON_START;
+ }
+
+ if (data1 & (1 << 5)) {
+ gp_xbox_packet.buttons |= GP_XBOX_BUTTON_SELECT;
+ }
+
+ // axis buttons
+
+ if (data1 & (1 << 6)) {
+ gp_xbox_packet.buttons |= GP_XBOX_BUTTON_AXIS_LEFT;
+ }
+
+ if (data1 & (1 << 7)) {
+ gp_xbox_packet.buttons |= GP_XBOX_BUTTON_AXIS_RIGHT;
+ }
+
+ // buttons ABXY
+
+ if (data2 & (1 << 4)) {
+ gp_xbox_packet.buttons |= GP_XBOX_BUTTON_A;
+ }
+
+ if (data2 & (1 << 5)) {
+ gp_xbox_packet.buttons |= GP_XBOX_BUTTON_B;
+ }
+
+ if (data2 & (1 << 6)) {
+ gp_xbox_packet.buttons |= GP_XBOX_BUTTON_X;
+ }
+
+ if (data2 & (1 << 7)) {
+ gp_xbox_packet.buttons |= GP_XBOX_BUTTON_Y;
+ }
+
+ // buttons rear
+
+ if (data2 & (1 << 0)) {
+ gp_xbox_packet.buttons |= GP_XBOX_BUTTON_LT;
+ }
+
+ if (data2 & (1 << 1)) {
+ gp_xbox_packet.buttons |= GP_XBOX_BUTTON_RT;
+ }
+
+ if (data2 & (1 << 2)) {
+ gp_xbox_packet.buttons |= GP_XBOX_BUTTON_XBOX;
+ }
+
+ // rear levers
+
+ gp_xbox_packet.axis_rear_left = packet[4];
+ gp_xbox_packet.axis_rear_right = packet[5];
+ gp_xbox_packet.axis_left_x = packet[7]*256 + packet[6];
+ gp_xbox_packet.axis_left_y = packet[9]*256 + packet[8];
+ gp_xbox_packet.axis_right_x = packet[11]*256 + packet[10];
+ gp_xbox_packet.axis_right_y = packet[13]*256 + packet[12];
+
+ // call update callback
+ if (gp_xbox_config->update) {
+ gp_xbox_config->update(gp_xbox->device_id, gp_xbox_packet);
+ }
+}
+
+static void event(usbh_device_t *dev, usbh_packet_callback_data_t cb_data)
+{
+ gp_xbox_device_t *gp_xbox = dev->drvdata;
+ switch (gp_xbox->state_next) {
+ case STATE_READING_COMPLETE:
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ parse_data(dev);
+ gp_xbox->state_next = STATE_READING_REQUEST;
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ if (cb_data.transferred_length == GP_XBOX_CORRECT_TRANSFERRED_LENGTH) {
+ parse_data(dev);
+ }
+ gp_xbox->state_next = STATE_READING_REQUEST;
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ ERROR(cb_data.status);
+ gp_xbox->state_next = STATE_INACTIVE;
+ break;
+ }
+ }
+ break;
+
+ case STATE_SET_CONFIGURATION_EMPTY_READ:
+ {
+ LOG_PRINTF("|empty packet read|");
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ gp_xbox->state_next = STATE_SET_CONFIGURATION_COMPLETE;
+ device_xfer_control_read(0, 0, event, dev);
+ break;
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ ERROR(cb_data.status);
+ gp_xbox->state_next = STATE_INACTIVE;
+ break;
+ }
+ }
+ break;
+ case STATE_SET_CONFIGURATION_COMPLETE: // Configured
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ gp_xbox->state_next = STATE_READING_REQUEST;
+ gp_xbox->endpoint_in_toggle = 0;
+ LOG_PRINTF("\r\ngp_xbox CONFIGURED\r\n");
+ if (gp_xbox_config->notify_connected) {
+ gp_xbox_config->notify_connected(gp_xbox->device_id);
+ }
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ ERROR(cb_data.status);
+ gp_xbox->state_next = STATE_INACTIVE;
+ break;
+ }
+ }
+ break;
+
+ case STATE_INACTIVE:
+ {
+ LOG_PRINTF("XBOX inactive");
+ }
+ break;
+ default:
+ {
+ LOG_PRINTF("Unknown state\r\n");
+ }
+ break;
+ }
+}
+
+
+static void read_gp_xbox_in(gp_xbox_device_t *gp_xbox)
+{
+ usbh_packet_t packet;
+
+ packet.address = gp_xbox->usbh_device->address;
+ packet.data = &gp_xbox->buffer[0];
+ packet.datalen = gp_xbox->endpoint_in_maxpacketsize;
+ packet.endpoint_address = gp_xbox->endpoint_in_address;
+ packet.endpoint_size_max = gp_xbox->endpoint_in_maxpacketsize;
+ packet.endpoint_type = USBH_EPTYP_BULK;
+ packet.speed = gp_xbox->usbh_device->speed;
+ packet.callback = event;
+ packet.callback_arg = gp_xbox->usbh_device;
+ packet.toggle = &gp_xbox->endpoint_in_toggle;
+
+ gp_xbox->state_next = STATE_READING_COMPLETE;
+ usbh_read(gp_xbox->usbh_device, &packet);
+
+ // LOG_PRINTF("@gp_xbox EP1 | \r\n");
+}
+
+/**
+ *
+ * tflp time from last poll [us]
+ */
+static void gp_xbox_poll(void *drvdata, uint32_t tflp)
+{
+ (void)tflp;
+ gp_xbox_device_t *gp_xbox = drvdata;
+ usbh_device_t *dev = gp_xbox->usbh_device;
+
+ switch (gp_xbox->state_next) {
+ case STATE_READING_REQUEST:
+ {
+ read_gp_xbox_in(gp_xbox);
+ }
+ break;
+
+ case STATE_SET_CONFIGURATION_REQUEST:
+ {
+ struct usb_setup_data setup_data;
+
+ setup_data.bmRequestType = 0b00000000;
+ setup_data.bRequest = USB_REQ_SET_CONFIGURATION;
+ setup_data.wValue = gp_xbox->configuration_value;
+ setup_data.wIndex = 0;
+ setup_data.wLength = 0;
+
+ gp_xbox->state_next = STATE_SET_CONFIGURATION_EMPTY_READ;
+
+ device_xfer_control_write(&setup_data, sizeof(setup_data), event, dev);
+ }
+ break;
+
+ default:
+ {
+ // do nothing - probably transfer is in progress
+ }
+ break;
+ }
+}
+
+static void gp_xbox_remove(void *drvdata)
+{
+ LOG_PRINTF("Removing xbox\r\n");
+
+ gp_xbox_device_t *gp_xbox = (gp_xbox_device_t *)drvdata;
+ if (gp_xbox_config->notify_disconnected) {
+ gp_xbox_config->notify_disconnected(gp_xbox->device_id);
+ }
+ gp_xbox->state_next = STATE_INACTIVE;
+ gp_xbox->endpoint_in_address = 0;
+}
diff --git a/src/usbh_driver_hid_mouse.c b/src/usbh_driver_hid_mouse.c
new file mode 100644
index 0000000..5c01451
--- /dev/null
+++ b/src/usbh_driver_hid_mouse.c
@@ -0,0 +1,294 @@
+/*
+ * This file is part of the libusbhost library
+ * hosted at http://github.com/libusbhost/libusbhost
+ *
+ * Copyright (C) 2015 Amir Hammad <amir.hammad@hotmail.com>
+ *
+ *
+ * libusbhost 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "usbh_hubbed.h"
+#include "driver/usbh_device_driver.h"
+#include "usbh_driver_hid_mouse.h"
+#include "usart_helpers.h"
+
+#include <libopencm3/usb/usbstd.h>
+
+static void *mouse_init(void *usbh_dev);
+static bool mouse_analyze_descriptor(void *drvdata, void *descriptor);
+static void mouse_poll(void *drvdata, uint32_t tflp);
+static void mouse_remove(void *drvdata);
+
+static const usbh_dev_driver_info_t usbh_hid_mouse_driver_info = {
+ .deviceClass = -1,
+ .deviceSubClass = -1,
+ .deviceProtocol = -1,
+ .idVendor = -1,
+ .idProduct = -1,
+ .ifaceClass = 0x03,
+ .ifaceSubClass = -1,
+ .ifaceProtocol = 0x02
+};
+
+const usbh_dev_driver_t usbh_hid_mouse_driver = {
+ .init = mouse_init,
+ .analyze_descriptor = mouse_analyze_descriptor,
+ .poll = mouse_poll,
+ .remove = mouse_remove,
+ .info = &usbh_hid_mouse_driver_info
+};
+
+enum STATES {
+ STATE_INACTIVE,
+ STATE_READING_COMPLETE,
+ STATE_READING_REQUEST,
+ STATE_SET_CONFIGURATION_REQUEST,
+ STATE_SET_CONFIGURATION_EMPTY_READ,
+ STATE_SET_CONFIGURATION_COMPLETE
+};
+
+struct _hid_mouse_device {
+ usbh_device_t *usbh_device;
+ uint8_t buffer[USBH_HID_MOUSE_BUFFER];
+ uint16_t endpoint_in_maxpacketsize;
+ uint8_t endpoint_in_address;
+ enum STATES state_next;
+ uint8_t endpoint_in_toggle;
+ uint8_t device_id;
+ uint8_t configuration_value;
+};
+typedef struct _hid_mouse_device hid_mouse_device_t;
+
+static hid_mouse_device_t mouse_device[USBH_HID_MOUSE_MAX_DEVICES];
+static const hid_mouse_config_t *mouse_config;
+
+
+
+
+#include <stdint.h>
+
+
+
+void hid_mouse_driver_init(const hid_mouse_config_t *config)
+{
+ uint32_t i;
+ mouse_config = config;
+ for (i = 0; i < USBH_HID_MOUSE_MAX_DEVICES; i++) {
+ mouse_device[i].state_next = STATE_INACTIVE;
+ }
+}
+
+/**
+ *
+ *
+ */
+static void *mouse_init(void *usbh_dev)
+{
+ uint32_t i;
+ hid_mouse_device_t *drvdata = 0;
+
+ // find free data space for mouse device
+ for (i = 0; i < USBH_HID_MOUSE_MAX_DEVICES; i++) {
+ if (mouse_device[i].state_next == STATE_INACTIVE) {
+ drvdata = &mouse_device[i];
+ drvdata->device_id = i;
+ drvdata->endpoint_in_address = 0;
+ drvdata->endpoint_in_toggle = 0;
+ drvdata->usbh_device = usbh_dev;
+ break;
+ }
+ }
+
+ return drvdata;
+}
+
+/**
+ * Returns true if all needed data are parsed
+ */
+static bool mouse_analyze_descriptor(void *drvdata, void *descriptor)
+{
+ hid_mouse_device_t *mouse = drvdata;
+ uint8_t desc_type = ((uint8_t *)descriptor)[1];
+ switch (desc_type) {
+ case USB_DT_CONFIGURATION:
+ {
+ struct usb_config_descriptor *cfg = (struct usb_config_descriptor*)descriptor;
+ mouse->configuration_value = cfg->bConfigurationValue;
+ }
+ break;
+ case USB_DT_DEVICE:
+ break;
+ case USB_DT_INTERFACE:
+ break;
+ case USB_DT_ENDPOINT:
+ {
+ struct usb_endpoint_descriptor *ep = (struct usb_endpoint_descriptor*)descriptor;
+ if ((ep->bmAttributes&0x03) == USB_ENDPOINT_ATTR_INTERRUPT) {
+ uint8_t epaddr = ep->bEndpointAddress;
+ if (epaddr & (1<<7)) {
+ mouse->endpoint_in_address = epaddr&0x7f;
+ if (ep->wMaxPacketSize < USBH_HID_MOUSE_BUFFER) {
+ mouse->endpoint_in_maxpacketsize = ep->wMaxPacketSize;
+ } else {
+ mouse->endpoint_in_maxpacketsize = USBH_HID_MOUSE_BUFFER;
+ }
+ }
+
+ if (mouse->endpoint_in_address) {
+ mouse->state_next = STATE_SET_CONFIGURATION_REQUEST;
+ return true;
+ }
+ }
+ }
+ break;
+ // TODO Class Specific descriptors
+ default:
+ break;
+ }
+ return false;
+}
+
+static void event(usbh_device_t *dev, usbh_packet_callback_data_t cb_data)
+{
+ hid_mouse_device_t *mouse = dev->drvdata;
+ switch (mouse->state_next) {
+ case STATE_READING_COMPLETE:
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ mouse->state_next = STATE_READING_REQUEST;
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ ERROR(cb_data.status);
+ mouse->state_next = STATE_INACTIVE;
+ break;
+ }
+ }
+ break;
+
+ case STATE_SET_CONFIGURATION_EMPTY_READ:
+ {
+ LOG_PRINTF("|empty packet read|");
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ mouse->state_next++;
+ device_xfer_control_read(0, 0, event, dev);
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ ERROR(cb_data.status);
+ mouse->state_next = STATE_INACTIVE;
+ break;
+ }
+ }
+ break;
+ case STATE_SET_CONFIGURATION_COMPLETE: // Configured
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ mouse->state_next = STATE_READING_REQUEST;
+ mouse->endpoint_in_toggle = 0;
+ LOG_PRINTF("\r\nMOUSE CONFIGURED\r\n");
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ ERROR(cb_data.status);
+ mouse->state_next = STATE_INACTIVE;
+ break;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+}
+
+
+static void read_mouse_in(void *drvdata)
+{
+ hid_mouse_device_t *mouse = drvdata;
+ usbh_packet_t packet;
+
+ packet.address = mouse->usbh_device->address;
+ packet.data = &mouse->buffer[0];
+ packet.datalen = mouse->endpoint_in_maxpacketsize;
+ packet.endpoint_address = mouse->endpoint_in_address;
+ packet.endpoint_size_max = mouse->endpoint_in_maxpacketsize;
+ packet.endpoint_type = USBH_EPTYP_BULK;
+ packet.speed = mouse->usbh_device->speed;
+ packet.callback = event;
+ packet.callback_arg = mouse->usbh_device;
+ packet.toggle = &mouse->endpoint_in_toggle;
+
+ mouse->state_next = STATE_READING_COMPLETE;
+ usbh_read(mouse->usbh_device, &packet);
+
+ // LOG_PRINTF("@MOUSE EP1 | \r\n");
+
+}
+
+/**
+ *
+ * tflp time from last poll [us]
+ */
+static void mouse_poll(void *drvdata, uint32_t tflp)
+{
+ (void)drvdata;
+ (void)tflp;
+ hid_mouse_device_t *mouse = drvdata;
+ usbh_device_t *dev = mouse->usbh_device;
+ switch (mouse->state_next) {
+ case STATE_READING_REQUEST:
+ {
+ read_mouse_in(drvdata);
+ }
+ break;
+
+ case STATE_SET_CONFIGURATION_REQUEST:
+ {
+ struct usb_setup_data setup_data;
+
+ setup_data.bmRequestType = 0b00000000;
+ setup_data.bRequest = USB_REQ_SET_CONFIGURATION;
+ setup_data.wValue = mouse->configuration_value;
+ setup_data.wIndex = 0;
+ setup_data.wLength = 0;
+
+ mouse->state_next++;
+
+ device_xfer_control_write(&setup_data, sizeof(setup_data), event, dev);
+ }
+ break;
+
+ default:
+ // do nothing - probably transfer is in progress
+ break;
+ }
+}
+
+static void mouse_remove(void *drvdata)
+{
+ hid_mouse_device_t *mouse = (hid_mouse_device_t *)drvdata;
+ mouse->state_next = STATE_INACTIVE;
+ mouse->endpoint_in_address = 0;
+}
diff --git a/src/usbh_driver_hub.c b/src/usbh_driver_hub.c
new file mode 100644
index 0000000..c82eacd
--- /dev/null
+++ b/src/usbh_driver_hub.c
@@ -0,0 +1,865 @@
+/*
+ * This file is part of the libusbhost library
+ * hosted at http://github.com/libusbhost/libusbhost
+ *
+ * Copyright (C) 2015 Amir Hammad <amir.hammad@hotmail.com>
+ *
+ *
+ * libusbhost 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "usbh_driver_hub_private.h"
+#include "driver/usbh_device_driver.h"
+#include "usart_helpers.h"
+#include "usbh_config.h"
+
+#include <stdint.h>
+
+
+static hub_device_t hub_device[USBH_MAX_HUBS];
+
+static void *hub_init(void *usbh_dev);
+static bool hub_analyze_descriptor(void *drvdata, void *descriptor);
+static void hub_poll(void *drvdata, uint32_t tflp);
+static void event(usbh_device_t *dev, usbh_packet_callback_data_t cb_data);
+static void hub_remove(void *drvdata);
+
+static const usbh_dev_driver_info_t usbh_hub_driver_info = {
+ .deviceClass = 0x09,
+ .deviceSubClass = -1,
+ .deviceProtocol = -1,
+ .idVendor = -1,
+ .idProduct = -1,
+ .ifaceClass = 0x09,
+ .ifaceSubClass = -1,
+ .ifaceProtocol = -1
+};
+
+const usbh_dev_driver_t usbh_hub_driver = {
+ .init = hub_init,
+ .analyze_descriptor = hub_analyze_descriptor,
+ .poll = hub_poll,
+ .remove = hub_remove,
+ .info = &usbh_hub_driver_info
+};
+
+
+
+void hub_driver_init(void)
+{
+ uint32_t i;
+
+ for (i = 0; i < USBH_MAX_HUBS; i++) {
+ hub_device[i].device[0] = 0;
+ hub_device[i].ports_num = 0;
+ hub_device[i].current_port = -1;
+ }
+}
+
+
+/**
+ *
+ *
+ */
+static void *hub_init(void *usbh_dev)
+{
+ uint32_t i;
+ hub_device_t *drvdata = 0;
+ // find free data space for hub device
+ for (i = 0; i < USBH_MAX_HUBS; i++) {
+ if (hub_device[i].device[0] == 0) {
+ break;
+ }
+ }
+ LOG_PRINTF("%{%d}",i);
+ LOG_FLUSH();
+ if (i == USBH_MAX_HUBS) {
+ LOG_PRINTF("ERRRRRRR");
+ return 0;
+ }
+
+ drvdata = &hub_device[i];
+ drvdata->state = 0;
+ drvdata->ports_num = 0;
+ drvdata->device[0] = usbh_dev;
+ drvdata->busy = 0;
+ drvdata->endpoint_in_address = 0;
+ drvdata->endpoint_in_maxpacketsize = 0;
+
+// for (i = 1; i < USBH_MAX_HUBS + 1; i++) {
+// drvdata->device[i]->address = 0;
+// drvdata->device[i]->state = 0;
+// }
+ return drvdata;
+}
+
+/**
+ * Returns true if all needed data are parsed
+ */
+static bool hub_analyze_descriptor(void *drvdata, void *descriptor)
+{
+ hub_device_t *hub = drvdata;
+ uint8_t desc_type = ((uint8_t *)descriptor)[1];
+ switch (desc_type) {
+ case USB_DT_CONFIGURATION:
+ {
+ struct usb_config_descriptor *cfg = (struct usb_config_descriptor*)descriptor;
+ hub->buffer[0] = cfg->bConfigurationValue;
+ }
+ break;
+
+ case USB_DT_ENDPOINT:
+ {
+ struct usb_endpoint_descriptor *ep = (struct usb_endpoint_descriptor *)descriptor;
+ if ((ep->bmAttributes&0x03) == USB_ENDPOINT_ATTR_INTERRUPT) {
+ uint8_t epaddr = ep->bEndpointAddress;
+ if (epaddr & (1<<7)) {
+ hub->endpoint_in_address = epaddr&0x7f;
+ hub->endpoint_in_maxpacketsize = ep->wMaxPacketSize;
+ }
+ }
+ LOG_PRINTF("ENDPOINT DESCRIPTOR FOUND\r\n");
+ }
+ break;
+
+ case USB_DT_HUB:
+ {
+ struct usb_hub_descriptor *desc = (struct usb_hub_descriptor *)descriptor;
+ //~ hub->ports_num = desc->head.bNbrPorts;
+ if ( desc->head.bNbrPorts <= USBH_HUB_MAX_DEVICES) {
+ hub->ports_num = desc->head.bNbrPorts;
+ } else {
+ LOG_PRINTF("INCREASE NUMBER OF ENABLED PORTS\r\n");
+ hub->ports_num = USBH_HUB_MAX_DEVICES;
+ }
+ LOG_PRINTF("HUB DESCRIPTOR FOUND \r\n");
+ }
+ break;
+
+ default:
+ LOG_PRINTF("TYPE: %02X \r\n",desc_type);
+ break;
+ }
+
+ if (hub->endpoint_in_address) {
+ hub->state = 1;
+ LOG_PRINTF("end enum");
+ return true;
+ }
+ return false;
+}
+
+// Enumerate
+static void event(usbh_device_t *dev, usbh_packet_callback_data_t cb_data)
+{
+ //~ usbh_device_t *dev = arg;
+ hub_device_t *hub = dev->drvdata;
+
+ LOG_PRINTF("\r\nHUB->STATE = %d\r\n", hub->state);
+ switch (hub->state) {
+ case 26:
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ {
+ uint8_t i;
+ uint8_t *buf = hub->buffer;
+ uint32_t psc = 0; // Limit: up to 4 bytes...
+ for (i = 0; i < cb_data.transferred_length; i++) {
+ psc += buf[i] << (i*8);
+ }
+ int8_t port = 0;
+
+ LOG_PRINTF("psc:%d\r\n",psc);
+ // Driver error... port not found
+ if (!psc) {
+ // Continue reading status change endpoint
+ hub->state = 25;
+ break;
+ }
+
+ for (i = 0; i <= hub->ports_num; i++) {
+ if (psc & (1<<i)) {
+ port = i;
+ psc = 0;
+ break;
+ }
+ }
+
+ if (hub->current_port >= 1) {
+ if (hub->current_port != port) {
+ LOG_PRINTF("X");
+ hub->state = 25;
+ break;
+ }
+ }
+ struct usb_setup_data setup_data;
+ // If regular port event, else hub event
+ if (port) {
+ setup_data.bmRequestType = 0b10100011;
+ } else {
+ setup_data.bmRequestType = 0b10100000;
+ }
+
+
+ //~ LOG_PRINTF("port:%d", port);
+ setup_data.bRequest = USB_REQ_GET_STATUS;
+ setup_data.wValue = 0;
+ setup_data.wIndex = port;
+ setup_data.wLength = 4;
+ hub->state = 31;
+
+ hub->current_port = port;
+ LOG_PRINTF("\r\n\r\nPORT FOUND: %d\r\n", port);
+ device_xfer_control_write(&setup_data, sizeof(setup_data), event, dev);
+ }
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ ERROR(cb_data.status);
+ hub->state = 0;
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+
+ // In case of EAGAIN error, retry read on status endpoint
+ hub->state = 25;
+ LOG_PRINTF("HUB: Retrying...\r\n");
+ break;
+ }
+ break;
+
+ case 2:
+ {
+ LOG_PRINTF("|empty packet read|");
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ device_xfer_control_read(0, 0, event, dev);
+ hub->state++;
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ ERROR(cb_data.status);
+ break;
+ }
+ }
+ break;
+
+ case 3: // Get HUB Descriptor write
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ if (hub->ports_num) {
+ hub->index = 0;
+ hub->state = 6;
+ LOG_PRINTF("No need to get HUB DESC\r\n");
+ event(dev, cb_data);
+ } else {
+ hub->endpoint_in_toggle = 0;
+
+ struct usb_setup_data setup_data;
+ hub->desc_len = hub->device[0]->packet_size_max0;
+
+ setup_data.bmRequestType = 0b10100000;
+ setup_data.bRequest = USB_REQ_GET_DESCRIPTOR;
+ setup_data.wValue = 0x29<<8;
+ setup_data.wIndex = 0;
+ setup_data.wLength = hub->desc_len;
+
+ hub->state++;
+ device_xfer_control_write(&setup_data, sizeof(setup_data), event, dev);
+ LOG_PRINTF("DO Need to get HUB DESC\r\n");
+ }
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ ERROR(cb_data.status);
+ break;
+ }
+ }
+ break;
+
+ case 4: // Get HUB Descriptor read
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ hub->state++;
+ device_xfer_control_read(hub->buffer, hub->desc_len, event, dev); // "error dynamic size" - bad comment, investigate
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ ERROR(cb_data.status);
+ break;
+ }
+ }
+ break;
+
+ case 5:// Hub descriptor found
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ {
+ struct usb_hub_descriptor *hub_descriptor =
+ (struct usb_hub_descriptor *)hub->buffer;
+
+ // Check size
+ if (hub_descriptor->head.bDescLength > hub->desc_len) {
+ struct usb_setup_data setup_data;
+ hub->desc_len = hub_descriptor->head.bDescLength;
+
+ setup_data.bmRequestType = 0b10100000;
+ setup_data.bRequest = USB_REQ_GET_DESCRIPTOR;
+ setup_data.wValue = 0x29<<8;
+ setup_data.wIndex = 0;
+ setup_data.wLength = hub->desc_len;
+
+ hub->state = 4;
+ device_xfer_control_write(&setup_data, sizeof(setup_data), event, dev);
+ break;
+ } else if (hub_descriptor->head.bDescLength == hub->desc_len) {
+ hub->ports_num = hub_descriptor->head.bNbrPorts;
+
+ hub->state++;
+ hub->index = 0;
+ cb_data.status = USBH_PACKET_CALLBACK_STATUS_OK;
+ event(dev, cb_data);
+ } else {
+ //try again
+ }
+ }
+ break;
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ {
+ LOG_PRINTF("->\t\t\t\t\t ERRSIZ: deschub\r\n");
+ struct usb_hub_descriptor*hub_descriptor =
+ (struct usb_hub_descriptor *)hub->buffer;
+
+ if (cb_data.transferred_length >= sizeof(struct usb_hub_descriptor_head)) {
+ if (cb_data.transferred_length == hub_descriptor->head.bDescLength) {
+ // Process HUB descriptor
+ if ( hub_descriptor->head.bNbrPorts <= USBH_HUB_MAX_DEVICES) {
+ hub->ports_num = hub_descriptor->head.bNbrPorts;
+ } else {
+ LOG_PRINTF("INCREASE NUMBER OF ENABLED PORTS\r\n");
+ hub->ports_num = USBH_HUB_MAX_DEVICES;
+ }
+ hub->state++;
+ hub->index = 0;
+
+ cb_data.status = USBH_PACKET_CALLBACK_STATUS_OK;
+ event(dev, cb_data);
+ }
+ }
+ }
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ ERROR(cb_data.status);
+ break;
+ }
+ }
+ break;
+
+ case 6:// enable ports
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ if (hub->index < hub->ports_num) {
+ hub->index++;
+ struct usb_setup_data setup_data;
+
+ LOG_PRINTF("[!%d!]",hub->index);
+ setup_data.bmRequestType = 0b00100011;
+ setup_data.bRequest = HUB_REQ_SET_FEATURE;
+ setup_data.wValue = HUB_FEATURE_PORT_POWER;
+ setup_data.wIndex = hub->index;
+ setup_data.wLength = 0;
+
+ device_xfer_control_write(&setup_data, sizeof(setup_data), event, dev);
+ } else {
+ hub->state++;
+ // TODO:
+ // Delay Based on hub descriptor field bPwr2PwrGood
+ // delay_ms_busy_loop(200);
+
+ LOG_PRINTF("\r\nHUB CONFIGURED & PORTS POWERED\r\n");
+
+ cb_data.status = USBH_PACKET_CALLBACK_STATUS_OK;
+ event(dev, cb_data);
+ }
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ ERROR(cb_data.status);
+ break;
+ }
+ }
+ break;
+
+ case 7:
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ {
+ struct usb_setup_data setup_data;
+
+ setup_data.bmRequestType = 0b10100000;
+ setup_data.bRequest = USB_REQ_GET_STATUS;
+ setup_data.wValue = 0;
+ setup_data.wIndex = 0;
+ setup_data.wLength = 4;
+
+ hub->state++;
+ device_xfer_control_write(&setup_data, sizeof(setup_data), event, dev);
+ }
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ ERROR(cb_data.status);
+ break;
+ }
+
+ }
+ break;
+ case 8:
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ device_xfer_control_read(hub->buffer, 4, event, dev);
+ hub->index = 0;
+ hub->state++;
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ ERROR(cb_data.status);
+ break;
+ }
+ }
+ break;
+ case 9:
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ {
+ struct usb_setup_data setup_data;
+
+ setup_data.bmRequestType = 0b10100011;
+ setup_data.bRequest = USB_REQ_GET_STATUS;
+ setup_data.wValue = 0;
+ setup_data.wIndex = ++hub->index;
+ setup_data.wLength = 4;
+
+ hub->state++;
+
+ device_xfer_control_write(&setup_data, sizeof(setup_data), event, dev);
+ }
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ ERROR(cb_data.status);
+ break;
+ }
+ }
+ break;
+ case 10:
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ device_xfer_control_read(hub->buffer, 4, event, dev);
+ hub->state++;
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ ERROR(cb_data.status);
+ break;
+ }
+ }
+ break;
+ case 11:
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ if (hub->index < hub->ports_num) {
+ hub->state = 9;
+ // process data contained in hub->buffer
+ // TODO:
+ cb_data.status = USBH_PACKET_CALLBACK_STATUS_OK;
+ event(dev, cb_data);
+ } else {
+ hub->busy = 0;
+ hub->state = 25;
+ }
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ ERROR(cb_data.status);
+ break;
+ }
+ }
+ break;
+
+ case 31: // Read port status
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ {
+ int8_t port = hub->current_port;
+ hub->state++;
+
+ // TODO: rework to endianess aware,
+ // (maybe whole library is affected by this)
+ // Detail:
+ // Isn't universal. Here is endianess ok,
+ // but on another architecture must not be
+ device_xfer_control_read(&hub->hub_and_port_status[port], 4, event, dev);
+ }
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ ERROR(cb_data.status);
+ // continue
+ hub->state = 25;
+ break;
+ }
+
+ }
+ break;
+ case 32:
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ {
+ int8_t port = hub->current_port;
+ LOG_PRINTF("|%d",port);
+
+
+ // Get Port status, else Get Hub status
+ if (port) {
+ uint16_t stc = hub->hub_and_port_status[port].stc;
+
+ // Connection status changed
+ if (stc & (1<<HUB_FEATURE_PORT_CONNECTION)) {
+
+ // Check, whether device is in connected state
+ if (!hub->device[port]) {
+ if (!usbh_enum_available() || hub->busy) {
+ LOG_PRINTF("\r\n\t\t\tCannot enumerate %d %d\r\n", !usbh_enum_available(), hub->busy);
+ hub->state = 25;
+ break;
+ }
+ }
+
+ // clear feature C_PORT_CONNECTION
+ struct usb_setup_data setup_data;
+
+ setup_data.bmRequestType = 0b00100011;
+ setup_data.bRequest = HUB_REQ_CLEAR_FEATURE;
+ setup_data.wValue = HUB_FEATURE_C_PORT_CONNECTION;
+ setup_data.wIndex = port;
+ setup_data.wLength = 0;
+
+ hub->state = 33;
+ device_xfer_control_write(&setup_data, sizeof(setup_data), event, dev);
+
+ } else if(stc & (1<<HUB_FEATURE_PORT_RESET)) {
+ // clear feature C_PORT_RESET
+ // Reset processing is complete, enumerate device
+ struct usb_setup_data setup_data;
+
+ setup_data.bmRequestType = 0b00100011;
+ setup_data.bRequest = HUB_REQ_CLEAR_FEATURE;
+ setup_data.wValue = HUB_FEATURE_C_PORT_RESET;
+ setup_data.wIndex = port;
+ setup_data.wLength = 0;
+
+ hub->state = 35;
+
+ LOG_PRINTF("RESET");
+ device_xfer_control_write(&setup_data, sizeof(setup_data), event, dev);
+ } else {
+ LOG_PRINTF("another STC %d\r\n", stc);
+ }
+ } else {
+ hub->state = 25;
+ LOG_PRINTF("HUB status change\r\n");
+ }
+ }
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ ERROR(cb_data.status);
+ // continue
+ hub->state = 25;
+ break;
+ }
+ }
+ break;
+ case 33:
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ {
+ int8_t port = hub->current_port;
+ uint16_t stc = hub->hub_and_port_status[port].stc;
+ if (!hub->device[port]) {
+ if ((stc) & (1<<HUB_FEATURE_PORT_CONNECTION)) {
+ struct usb_setup_data setup_data;
+
+ setup_data.bmRequestType = 0b00100011;
+ setup_data.bRequest = HUB_REQ_SET_FEATURE;
+ setup_data.wValue = HUB_FEATURE_PORT_RESET;
+ setup_data.wIndex = port;
+ setup_data.wLength = 0;
+
+ hub->state = 11;
+ LOG_PRINTF("CONN");
+
+ hub->busy = 1;
+ device_xfer_control_write(&setup_data, sizeof(setup_data), event, dev);
+ }
+ } else {
+ LOG_PRINTF("\t\t\t\tDISCONNECT EVENT\r\n");
+ if (hub->device[port]->drv && hub->device[port]->drvdata) {
+ hub->device[port]->drv->remove(hub->device[port]->drvdata);
+ }
+ hub->device[port]->address = -1;
+
+ hub->device[port]->drv = 0;
+ hub->device[port]->drvdata = 0;
+ hub->device[port] = 0;
+ hub->current_port = CURRENT_PORT_NONE;
+ hub->state = 25;
+ hub->busy = 0;
+ }
+ }
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ ERROR(cb_data.status);
+ // continue
+ hub->state = 25;
+ break;
+ }
+ }
+ break;
+ case 35: // RESET COMPLETE, start enumeration
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ {
+ LOG_PRINTF("\r\nPOLL\r\n");
+ int8_t port = hub->current_port;
+ uint16_t sts = hub->hub_and_port_status[port].sts;
+
+
+ if (sts & (1<<HUB_FEATURE_PORT_ENABLE)) {
+ hub->device[port] = usbh_get_free_device(dev);
+
+ if (!hub->device[port]) {
+ LOG_PRINTF("\r\nFATAL ERROR\r\n");
+ return;// DEAD END
+ }
+ if ((sts & (1<<(HUB_FEATURE_PORT_LOWSPEED))) &&
+ !(sts & (1<<(HUB_FEATURE_PORT_HIGHSPEED)))) {
+ LOG_PRINTF("Low speed device");
+
+ // Disable Low speed device immediately
+ struct usb_setup_data setup_data;
+
+ setup_data.bmRequestType = 0b00100011;
+ setup_data.bRequest = HUB_REQ_CLEAR_FEATURE;
+ setup_data.wValue = HUB_FEATURE_PORT_ENABLE;
+ setup_data.wIndex = port;
+ setup_data.wLength = 0;
+
+ // After write process another devices, poll for events
+ hub->state = 11;//Expecting all ports are powered (constant/non-changeable after init)
+ hub->current_port = CURRENT_PORT_NONE;
+ device_xfer_control_write(&setup_data, sizeof(setup_data), event, dev);
+ } else if (!(sts & (1<<(HUB_FEATURE_PORT_LOWSPEED))) &&
+ !(sts & (1<<(HUB_FEATURE_PORT_HIGHSPEED)))) {
+ hub->device[port]->speed = USBH_SPEED_FULL;
+ LOG_PRINTF("Full speed device");
+ hub->timestamp_us = hub->time_curr_us;
+ hub->state = 100; // schedule wait for 500ms
+ }
+
+
+ } else {
+ LOG_PRINTF("%s:%d Do not know what to do, when device is disabled after reset\r\n", __FILE__, __LINE__);
+ hub->state = 25;
+ return;
+ }
+ }
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ ERROR(cb_data.status);
+ // continue
+ hub->state = 25;
+ break;
+ }
+ }
+ break;
+ default:
+ LOG_PRINTF("UNHANDLED EVENT %d\r\n",hub->state);
+ break;
+ }
+}
+
+static void read_ep1(void *drvdata)
+{
+ hub_device_t *hub = drvdata;
+ usbh_packet_t packet;
+
+ packet.address = hub->device[0]->address;
+ packet.data = hub->buffer;
+ packet.datalen = hub->endpoint_in_maxpacketsize;
+ packet.endpoint_address = hub->endpoint_in_address;
+ packet.endpoint_size_max = hub->endpoint_in_maxpacketsize;
+ packet.endpoint_type = USBH_EPTYP_INTERRUPT;
+ packet.speed = hub->device[0]->speed;
+ packet.callback = event;
+ packet.callback_arg = hub->device[0];
+ packet.toggle = &hub->endpoint_in_toggle;
+
+ hub->state = 26;
+ usbh_read(hub->device[0], &packet);
+ LOG_PRINTF("@hub %d/EP1 | \r\n", hub->device[0]->address);
+
+}
+
+/**
+ *
+ * tflp time from last poll [ms]
+ */
+static void hub_poll(void *drvdata, uint32_t time_curr_us)
+{
+ hub_device_t *hub = drvdata;
+ usbh_device_t *dev = hub->device[0];
+
+ hub->time_curr_us = time_curr_us;
+
+ switch (hub->state) {
+ case 25:
+ {
+ if (usbh_enum_available()) {
+ read_ep1(hub);
+ } else {
+ LOG_PRINTF("enum not available\r\n");
+ }
+ }
+ break;
+
+ case 1:
+ {
+ LOG_PRINTF("CFGVAL: %d\r\n", hub->buffer[0]);
+ struct usb_setup_data setup_data;
+
+ setup_data.bmRequestType = 0b00000000;
+ setup_data.bRequest = USB_REQ_SET_CONFIGURATION;
+ setup_data.wValue = hub->buffer[0];
+ setup_data.wIndex = 0;
+ setup_data.wLength = 0;
+
+ hub->state += 2;
+ device_xfer_control_write(&setup_data, sizeof(setup_data), event, dev);
+
+ }
+ break;
+ case 100:
+ if (hub->time_curr_us - hub->timestamp_us > 500000) {
+ int8_t port = hub->current_port;
+ LOG_PRINTF("PORT: %d", port);
+ LOG_PRINTF("\r\nNEW device at address: %d\r\n", hub->device[port]->address);
+ hub->device[port]->lld = hub->device[0]->lld;
+
+ device_enumeration_start(hub->device[port]);
+ hub->current_port = CURRENT_PORT_NONE;
+
+ // Maybe error, when assigning address is taking too long
+ //
+ // Detail:
+ // USB hub cannot enable another port while the device
+ // the current one is also in address state (has address==0)
+ // Only one device on bus can have address==0
+ hub->busy = 0;
+
+ hub->state = 25;
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (usbh_enum_available()) {
+ uint32_t i;
+ for (i = 1; i < USBH_HUB_MAX_DEVICES + 1; i++) {
+ if (hub->device[i]) {
+ if (hub->device[i]->drv && hub->device[i]->drvdata) {
+ hub->device[i]->drv->poll(hub->device[i]->drvdata, time_curr_us);
+ }
+ }
+ }
+ }
+}
+static void hub_remove(void *drvdata)
+{
+ hub_device_t *hub = drvdata;
+ uint8_t i;
+
+ // Call fast... to avoid polling
+ hub->state = 0;
+ hub->endpoint_in_address = 0;
+ hub->busy = 0;
+ for (i = 1; i < USBH_HUB_MAX_DEVICES + 1; i++) {
+ if (hub->device[i]) {
+ if (hub->device[i]->drv && hub->device[i]->drvdata) {
+ if (hub->device[i]->drv->remove != hub_remove) {
+ LOG_PRINTF("\t\t\t\tHUB REMOVE %d\r\n",hub->device[i]->address);
+ hub->device[i]->drv->remove(hub->device[i]->drvdata);
+ }
+ }
+ hub->device[i] = 0;
+ }
+ hub->device[0]->drv = 0;
+ hub->device[0]->drvdata = 0;
+ hub->device[0] = 0;
+
+ }
+}
diff --git a/src/usbh_driver_hub_private.h b/src/usbh_driver_hub_private.h
new file mode 100644
index 0000000..4b98880
--- /dev/null
+++ b/src/usbh_driver_hub_private.h
@@ -0,0 +1,108 @@
+/*
+ * This file is part of the libusbhost library
+ * hosted at http://github.com/libusbhost/libusbhost
+ *
+ * Copyright (C) 2015 Amir Hammad <amir.hammad@hotmail.com>
+ *
+ *
+ * libusbhost 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef USBH_DRIVER_HUB_PRIVATE_
+#define USBH_DRIVER_HUB_PRIVATE_
+
+#include "usbh_config.h"
+#include "driver/usbh_device_driver.h"
+#include "usbh_driver_hub.h"
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <libopencm3/usb/usbstd.h>
+
+
+// # HUB DEFINITIONS
+#define HUB_FEATURE_PORT_CONNECTION 0
+#define HUB_FEATURE_PORT_ENABLE 1
+#define HUB_FEATURE_PORT_SUSPEND 2
+#define HUB_FEATURE_PORT_OVERCURRENT 3
+#define HUB_FEATURE_PORT_RESET 4
+#define HUB_FEATURE_PORT_POWER 8
+#define HUB_FEATURE_PORT_LOWSPEED 9
+#define HUB_FEATURE_PORT_HIGHSPEED 10
+
+#define HUB_FEATURE_C_PORT_CONNECTION 16
+#define HUB_FEATURE_C_PORT_ENABLE 17
+#define HUB_FEATURE_C_PORT_SUSPEND 18
+#define HUB_FEATURE_C_PORT_OVERCURRENT 19
+#define HUB_FEATURE_C_PORT_RESET 20
+
+#define HUB_REQ_GET_STATUS 0
+#define HUB_REQ_CLEAR_FEATURE 1
+#define HUB_REQ_SET_FEATURE 3
+#define HUB_REQ_GET_DESCRIPTOR 6
+
+#define USB_DT_HUB (41)
+#define USB_DT_HUB_SIZE (9)
+// Hub buffer: must be larger than hub descriptor
+#define USBH_HUB_BUFFER_SIZE (USB_DT_HUB_SIZE)
+
+
+#define CURRENT_PORT_NONE -1
+
+struct _hub_device {
+ usbh_device_t *device[USBH_HUB_MAX_DEVICES + 1];
+ uint8_t buffer[USBH_HUB_BUFFER_SIZE];
+ uint16_t endpoint_in_maxpacketsize;
+ uint8_t endpoint_in_address;
+ uint8_t endpoint_in_toggle;
+ uint8_t state;
+ uint8_t desc_len;
+ uint16_t ports_num;
+ int8_t index;
+ int8_t current_port;
+
+ struct {
+ uint16_t sts;
+ uint16_t stc;
+ } hub_and_port_status[USBH_HUB_MAX_DEVICES + 1];
+
+ bool busy;
+
+ uint32_t time_curr_us;
+ uint32_t timestamp_us;
+};
+
+typedef struct _hub_device hub_device_t;
+
+struct usb_hub_descriptor_head {
+ uint8_t bDescLength;
+ uint8_t bDescriptorType;
+ uint8_t bNbrPorts;
+ uint16_t wHubCharacteristics;
+ uint8_t bPwrOn2PwrGood;
+ uint8_t bHubContrCurrent;
+} __attribute__((packed));
+struct usb_hub_descriptor_body {
+ uint8_t bDeviceRemovable;
+ uint8_t PortPwrCtrlMask;
+} __attribute__((packed));
+
+// for hubs with up to 7 ports on hub
+struct usb_hub_descriptor {
+ struct usb_hub_descriptor_head head;
+ struct usb_hub_descriptor_body body[1];
+} __attribute__((packed));
+
+#endif
diff --git a/src/usbh_hubbed.c b/src/usbh_hubbed.c
new file mode 100644
index 0000000..e935f99
--- /dev/null
+++ b/src/usbh_hubbed.c
@@ -0,0 +1,634 @@
+/*
+ * This file is part of the libusbhost library
+ * hosted at http://github.com/libusbhost/libusbhost
+ *
+ * Copyright (C) 2015 Amir Hammad <amir.hammad@hotmail.com>
+ *
+ *
+ * libusbhost 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "usbh_config.h"
+#include "usbh_lld_stm32f4.h"
+#include "driver/usbh_device_driver.h"
+#include "usart_helpers.h"
+
+#include <libopencm3/stm32/gpio.h>
+#include <libopencm3/usb/usbstd.h>
+
+static struct {
+ bool enumeration_run;
+ const usbh_driver_t * const *lld_drivers;
+ const usbh_dev_driver_t * const *dev_drivers;
+ int8_t address_temporary;
+} usbh_data = {0};
+
+static void set_enumeration(void)
+{
+ usbh_data.enumeration_run = true;
+}
+
+static void reset_enumeration(void)
+{
+ usbh_data.enumeration_run = false;
+}
+
+static bool enumeration(void)
+{
+ return usbh_data.enumeration_run;
+}
+
+/**
+ *
+ */
+static const usbh_dev_driver_t *find_driver(const usbh_dev_driver_info_t * device_info)
+{
+
+#define CHECK_PARTIAL_COMPATIBILITY(what) \
+ if (usbh_data.dev_drivers[i]->info->what != -1\
+ && device_info->what != usbh_data.dev_drivers[i]->info->what) {\
+ i++;\
+ continue;\
+ }
+
+
+ int i = 0;
+
+ while (usbh_data.dev_drivers[i]) {
+
+ CHECK_PARTIAL_COMPATIBILITY(ifaceClass);
+ CHECK_PARTIAL_COMPATIBILITY(ifaceSubClass);
+ CHECK_PARTIAL_COMPATIBILITY(ifaceProtocol);
+ CHECK_PARTIAL_COMPATIBILITY(deviceClass);
+ CHECK_PARTIAL_COMPATIBILITY(deviceSubClass);
+ CHECK_PARTIAL_COMPATIBILITY(deviceProtocol);
+ CHECK_PARTIAL_COMPATIBILITY(idVendor);
+ CHECK_PARTIAL_COMPATIBILITY(idProduct);
+
+ return usbh_data.dev_drivers[i];
+ }
+ return 0;
+#undef CHECK_PARTIAL_COMPATIBILITY
+}
+
+
+static void device_register(void *descriptors, uint16_t descriptors_len, usbh_device_t *dev)
+{
+ uint32_t i = 0;
+ dev->drv = 0;
+ uint8_t *buf = (uint8_t *)descriptors;
+
+ dev->drv = 0;
+ dev->drvdata = 0;
+
+ uint8_t desc_len = buf[i];
+ uint8_t desc_type = buf[i + 1];
+
+ usbh_dev_driver_info_t device_info;
+ if (desc_type == USB_DT_DEVICE) {
+ struct usb_device_descriptor *device_desc = (void*)&buf[i];
+ LOG_PRINTF("DEVICE DESCRIPTOR");
+ device_info.deviceClass = device_desc->bDeviceClass;
+ device_info.deviceSubClass = device_desc->bDeviceSubClass;
+ device_info.deviceProtocol = device_desc->bDeviceProtocol;
+ device_info.idVendor = device_desc->idVendor;
+ device_info.idProduct = device_desc->idProduct;
+ } else {
+ LOG_PRINTF("INVALID descriptors pointer - fatal error");
+ return;
+ }
+
+
+ while (i < descriptors_len) {
+ desc_len = buf[i];
+ desc_type = buf[i + 1];
+ switch (desc_type) {
+ case USB_DT_DEVICE:
+ {
+ struct usb_device_descriptor *device_desc = (void*)&buf[i];
+ LOG_PRINTF("DEVICE DESCRIPTOR");
+ device_info.deviceClass = device_desc->bDeviceClass;
+ device_info.deviceSubClass = device_desc->bDeviceSubClass;
+ }
+ break;
+
+ case USB_DT_INTERFACE:
+ {
+ LOG_PRINTF("INTERFACE_DESCRIPTOR\r\n");
+ struct usb_interface_descriptor *iface = (void*)&buf[i];
+ device_info.ifaceClass = iface->bInterfaceClass;
+ device_info.ifaceSubClass = iface->bInterfaceSubClass;
+ device_info.ifaceProtocol = iface->bInterfaceProtocol;
+ const usbh_dev_driver_t *driver = find_driver(&device_info);
+ if (driver) {
+ dev->drv = driver;
+ dev->drvdata = dev->drv->init(dev);
+ if (!dev->drvdata) {
+ LOG_PRINTF("CANT TOUCH THIS");
+ }
+ break;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (desc_len == 0) {
+ LOG_PRINTF("PROBLEM WITH PARSE %d\r\n",i);
+ return;
+ }
+ i += desc_len;
+
+ }
+
+ if (dev->drv && dev->drvdata) {
+ // analyze descriptors
+ LOG_PRINTF("ANALYZE");
+ i = 0;
+ while (i < descriptors_len) {
+ desc_len = buf[i];
+ void *drvdata = dev->drvdata;
+ LOG_PRINTF("[%d]",buf[i+1]);
+ if (dev->drv->analyze_descriptor(drvdata, &buf[i])) {
+ LOG_PRINTF("Device Initialized\r\n");
+ return;
+ }
+ i += desc_len;
+ }
+ }
+ LOG_PRINTF("Device NOT Initialized\r\n");
+}
+
+void usbh_init(const void *drivers_lld[], const usbh_dev_driver_t * const device_drivers[])
+{
+ if (!drivers_lld) {
+ return;
+ }
+
+ usbh_data.lld_drivers = (const usbh_driver_t **)drivers_lld;
+ usbh_data.dev_drivers = device_drivers;
+
+ // TODO: init structures
+ uint32_t k = 0;
+ while (usbh_data.lld_drivers[k]) {
+ LOG_PRINTF("DRIVER %d\r\n", k);
+
+ usbh_device_t * usbh_device =
+ ((usbh_generic_data_t *)(usbh_data.lld_drivers[k])->driver_data)->usbh_device;
+ uint32_t i;
+ for (i = 0; i < USBH_MAX_DEVICES; i++) {
+ //~ LOG_PRINTF("%p ", &usbh_device[i]);
+ usbh_device[i].address = -1;
+ usbh_device[i].drv = 0;
+ usbh_device[i].drvdata = 0;
+ }
+ LOG_PRINTF("DRIVER %d", k);
+ usbh_data.lld_drivers[k]->init(usbh_data.lld_drivers[k]->driver_data);
+
+ k++;
+ }
+
+}
+
+/*
+ * NEW ENUMERATE
+ *
+ */
+void device_xfer_control_write(void *data, uint16_t datalen, usbh_packet_callback_t callback, usbh_device_t *dev)
+{
+ usbh_packet_t packet;
+
+ packet.data = data;
+ packet.datalen = datalen;
+ packet.address = dev->address;
+ packet.endpoint_address = 0;
+ packet.endpoint_size_max = dev->packet_size_max0;
+ packet.endpoint_type = USBH_EPTYP_CONTROL;
+ packet.speed = dev->speed;
+ packet.callback = callback;
+ packet.callback_arg = dev;
+ packet.toggle = &dev->toggle0;
+
+ usbh_write(dev, &packet);
+ LOG_PRINTF("WR@device...%d | \r\n", dev->address);
+}
+
+void device_xfer_control_read(void *data, uint16_t datalen, usbh_packet_callback_t callback, usbh_device_t *dev)
+{
+ usbh_packet_t packet;
+
+ packet.data = data;
+ packet.datalen = datalen;
+ packet.address = dev->address;
+ packet.endpoint_address = 0;
+ packet.endpoint_size_max = dev->packet_size_max0;
+ packet.endpoint_type = USBH_EPTYP_CONTROL;
+ packet.speed = dev->speed;
+ packet.callback = callback;
+ packet.callback_arg = dev;
+ packet.toggle = &dev->toggle0;
+
+ usbh_read(dev, &packet);
+ LOG_PRINTF("RD@device...%d | \r\n", dev->address);
+}
+
+
+
+bool usbh_enum_available(void)
+{
+ return !enumeration();
+}
+
+/**
+ * Returns 0 on error
+ * device otherwise
+ */
+usbh_device_t *usbh_get_free_device(const usbh_device_t *dev)
+{
+ const usbh_driver_t *lld = dev->lld;
+ usbh_generic_data_t *lld_data = lld->driver_data;
+ usbh_device_t *usbh_device = lld_data->usbh_device;
+
+ uint8_t i;
+ LOG_PRINTF("DEV ADDRESS%d\r\n", dev->address);
+ for (i = 0; i < USBH_MAX_DEVICES; i++) {
+ if (usbh_device[i].address < 0) {
+ LOG_PRINTF("\t\t\t\t\tFOUND: %d", i);
+ usbh_device[i].address = i+1;
+ return &usbh_device[i];
+ } else {
+ LOG_PRINTF("address: %d\r\n\r\n\r\n", usbh_device[i].address);
+ }
+ }
+
+ return 0;
+}
+
+static void device_enumeration_terminate(usbh_device_t *dev)
+{
+ reset_enumeration();
+ dev->state = 0;
+ dev->address = -1;
+}
+
+/* Do not call this function directly,
+ * only via callback passing into low-level function
+ * If you must, call it carefully ;)
+ */
+static void device_enumerate(usbh_device_t *dev, usbh_packet_callback_data_t cb_data)
+{
+ const usbh_driver_t *lld = dev->lld;
+ usbh_generic_data_t *lld_data = lld->driver_data;
+ uint8_t *usbh_buffer = lld_data->usbh_buffer;
+ uint8_t state_start = dev->state; // Detection of hang
+// LOG_PRINTF("\r\nSTATE: %d\r\n", state);
+ switch (dev->state) {
+ case 1:
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ dev->state++;
+ LOG_PRINTF("::%d::", dev->address);
+ device_xfer_control_read(0, 0, device_enumerate, dev);
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ device_enumeration_terminate(dev);
+ ERROR(cb_data.status);
+ break;
+ }
+ }
+ break;
+ case 2:
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ if (dev->address == 0) {
+ dev->address = usbh_data.address_temporary;
+ LOG_PRINTF("ADDR: %d\r\n", dev->address);
+ }
+
+ struct usb_setup_data setup_data;
+
+ setup_data.bmRequestType = 0b10000000;
+ setup_data.bRequest = USB_REQ_GET_DESCRIPTOR;
+ setup_data.wValue = USB_DT_DEVICE << 8;
+ setup_data.wIndex = 0;
+ setup_data.wLength = USB_DT_DEVICE_SIZE;
+
+ dev->state++;
+ device_xfer_control_write(&setup_data, sizeof(setup_data),
+ device_enumerate, dev);
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ device_enumeration_terminate(dev);
+ ERROR(cb_data.status);
+ break;
+ }
+ break;
+
+ case 3:
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ dev->state++;
+ device_xfer_control_read(&usbh_buffer[0], USB_DT_DEVICE_SIZE,
+ device_enumerate, dev);
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ dev->state = 2;
+
+ // WARNING: Recursion
+ // .. but should work
+ cb_data.status = USBH_PACKET_CALLBACK_STATUS_OK;
+ device_enumerate(dev, cb_data);
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ device_enumeration_terminate(dev);
+ ERROR(cb_data.status);
+ break;
+ }
+ }
+ break;
+
+ case 4:
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ {
+ struct usb_device_descriptor *ddt =
+ (struct usb_device_descriptor *)&usbh_buffer[0];
+ struct usb_setup_data setup_data;
+
+ setup_data.bmRequestType = 0b10000000;
+ setup_data.bRequest = USB_REQ_GET_DESCRIPTOR;
+ setup_data.wValue = USB_DT_CONFIGURATION << 8;
+ setup_data.wIndex = 0;
+ setup_data.wLength = ddt->bMaxPacketSize0;//USB_DT_CONFIGURATION_SIZE;
+
+ dev->state++;
+ device_xfer_control_write(&setup_data, sizeof(setup_data),
+ device_enumerate, dev);
+ }
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ if (cb_data.transferred_length >= 8) {
+ struct usb_device_descriptor *ddt =
+ (struct usb_device_descriptor *)&usbh_buffer[0];
+ dev->packet_size_max0 = ddt->bMaxPacketSize0;
+ dev->state = 2;
+
+ // WARNING: Recursion
+ // .. but should work
+ cb_data.status = USBH_PACKET_CALLBACK_STATUS_OK;
+ device_enumerate(dev, cb_data);
+ }
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ device_enumeration_terminate(dev);
+ ERROR(cb_data.status);
+ break;
+ }
+ }
+ break;
+ case 5:
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ dev->state++;
+ device_xfer_control_read(&usbh_buffer[USB_DT_DEVICE_SIZE],
+ dev->packet_size_max0, device_enumerate, dev);
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ device_enumeration_terminate(dev);
+ ERROR(cb_data.status);
+ break;
+ }
+ }
+ break;
+
+ case 6:
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ {
+ struct usb_config_descriptor *cdt =
+ (struct usb_config_descriptor *)&usbh_buffer[USB_DT_DEVICE_SIZE];
+ struct usb_setup_data setup_data;
+ LOG_PRINTF("WRITE: LEN: %d", cdt->wTotalLength);
+ setup_data.bmRequestType = 0b10000000;
+ setup_data.bRequest = USB_REQ_GET_DESCRIPTOR;
+ setup_data.wValue = USB_DT_CONFIGURATION << 8;
+ setup_data.wIndex = 0;
+ setup_data.wLength = cdt->wTotalLength;
+
+ dev->state++;
+ device_xfer_control_write(&setup_data, sizeof(setup_data),
+ device_enumerate, dev);
+ }
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ if (cb_data.transferred_length >= USB_DT_CONFIGURATION_SIZE) {
+ struct usb_config_descriptor *cdt =
+ (struct usb_config_descriptor *)&usbh_buffer[USB_DT_DEVICE_SIZE];
+ if (cb_data.transferred_length <= cdt->wTotalLength) {
+ dev->state = 8;
+
+ // WARNING: Recursion
+ // .. but should work
+ cb_data.status = USBH_PACKET_CALLBACK_STATUS_OK;
+ device_enumerate(dev, cb_data);
+ }
+ }
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ device_enumeration_terminate(dev);
+ ERROR(cb_data.status);
+ break;
+ }
+ }
+ break;
+
+ case 7:
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ {
+ struct usb_config_descriptor *cdt =
+ (struct usb_config_descriptor *)&usbh_buffer[USB_DT_DEVICE_SIZE];
+ dev->state++;
+ device_xfer_control_read(&usbh_buffer[USB_DT_DEVICE_SIZE],
+ cdt->wTotalLength, device_enumerate, dev);
+ }
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ device_enumeration_terminate(dev);
+ ERROR(cb_data.status);
+ break;
+ }
+ }
+ break;
+
+ case 8:
+ {
+ switch (cb_data.status) {
+ case USBH_PACKET_CALLBACK_STATUS_OK:
+ {
+ struct usb_config_descriptor *cdt =
+ (struct usb_config_descriptor *)&usbh_buffer[USB_DT_DEVICE_SIZE];
+ LOG_PRINTF("TOTAL_LENGTH: %d\r\n", cdt->wTotalLength);
+ device_register(usbh_buffer, cdt->wTotalLength + USB_DT_DEVICE_SIZE, dev);
+ dev->state++;
+
+ reset_enumeration();
+ }
+ break;
+
+ case USBH_PACKET_CALLBACK_STATUS_EFATAL:
+ case USBH_PACKET_CALLBACK_STATUS_EAGAIN:
+ case USBH_PACKET_CALLBACK_STATUS_ERRSIZ:
+ device_enumeration_terminate(dev);
+ ERROR(cb_data.status);
+ break;
+ }
+
+ }
+ break;
+ }
+
+ if (state_start == dev->state) {
+ LOG_PRINTF("\r\n !HANG %d\r\n", state_start);
+ }
+}
+
+void device_enumeration_start(usbh_device_t *dev)
+{
+ set_enumeration();
+ dev->state = 1;
+
+ // save address
+ uint8_t address = dev->address;
+ dev->address = 0;
+
+ if (dev->speed == USBH_SPEED_LOW) {
+ dev->packet_size_max0 = 8;
+ } else {
+ dev->packet_size_max0 = 64;
+ }
+
+ usbh_data.address_temporary = address;
+
+ LOG_PRINTF("\r\n\r\n\r\n ENUMERATION OF DEVICE@%d STARTED \r\n\r\n", address);
+
+ struct usb_setup_data setup_data;
+
+ setup_data.bmRequestType = 0b00000000;
+ setup_data.bRequest = USB_REQ_SET_ADDRESS;
+ setup_data.wValue = address;
+ setup_data.wIndex = 0;
+ setup_data.wLength = 0;
+
+ device_xfer_control_write(&setup_data, sizeof(setup_data),
+ device_enumerate, dev);
+}
+
+/**
+ * Should be called with at least 1kHz frequency
+ *
+ */
+void usbh_poll(uint32_t t_us)
+{
+ uint32_t k = 0;
+ while (usbh_data.lld_drivers[k]) {
+ usbh_device_t * usbh_device =
+ ((usbh_generic_data_t *)(usbh_data.lld_drivers[k]->driver_data))->usbh_device;
+ usbh_generic_data_t *lld_data = usbh_data.lld_drivers[k]->driver_data;
+
+ enum USBH_POLL_STATUS poll_status =
+ usbh_data.lld_drivers[k]->poll(lld_data, t_us);
+
+ switch (poll_status) {
+ case USBH_POLL_STATUS_DEVICE_CONNECTED:
+ // New device found
+ LOG_PRINTF("\r\nDEVICE FOUND\r\n");
+ usbh_device[0].lld = usbh_data.lld_drivers[k];
+ usbh_device[0].speed = usbh_data.lld_drivers[k]->root_speed(lld_data);
+ usbh_device[0].address = 1;
+
+ device_enumeration_start(&usbh_device[0]);
+ break;
+
+ case USBH_POLL_STATUS_DEVICE_DISCONNECTED:
+ {
+ // Device disconnected
+ if (usbh_device[0].drv && usbh_device[0].drvdata) {
+ usbh_device[0].drv->remove(usbh_device[0].drvdata);
+ }
+ usbh_device[0].drv = 0;
+ usbh_device[0].drvdata = 0;
+
+ uint32_t i;
+ for (i = 1; i < USBH_MAX_DEVICES; i++) {
+ usbh_device[i].address = -1;
+ usbh_device[i].drv = 0;
+ usbh_device[i].drvdata = 0;
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ if (lld_data->usbh_device[0].drv && usbh_device[0].drvdata) {
+ usbh_device[0].drv->poll(usbh_device[0].drvdata, t_us);
+ }
+
+ k++;
+ }
+}
+
+void usbh_read(usbh_device_t *dev, usbh_packet_t *packet)
+{
+ const usbh_driver_t *lld = dev->lld;
+ lld->read(lld->driver_data, packet);
+}
+
+void usbh_write(usbh_device_t *dev, const usbh_packet_t *packet)
+{
+ const usbh_driver_t *lld = dev->lld;
+ lld->write(lld->driver_data, packet);
+}
+
diff --git a/src/usbh_lld_stm32f4.c b/src/usbh_lld_stm32f4.c
new file mode 100644
index 0000000..6cf6015
--- /dev/null
+++ b/src/usbh_lld_stm32f4.c
@@ -0,0 +1,1048 @@
+/*
+ * This file is part of the libusbhost library
+ * hosted at http://github.com/libusbhost/libusbhost
+ *
+ * Copyright (C) 2015 Amir Hammad <amir.hammad@hotmail.com>
+ *
+ *
+ * libusbhost 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "usbh_lld_stm32f4.h"
+#include "usart_helpers.h"
+#include "driver/usbh_device_driver.h"
+
+#include <string.h>
+#include <stdint.h>
+#include <libopencm3/stm32/otg_hs.h>
+#include <libopencm3/stm32/otg_fs.h>
+
+
+
+/* Receive FIFO size in 32-bit words. */
+#define RX_FIFO_SIZE (64)
+/* Transmit NON-periodic FIFO size in 32-bit words. */
+#define TX_NP_FIFO_SIZE (64)
+/* Transmit periodic FIFO size in 32-bit words. */
+#define TX_P_FIFO_SIZE (64)
+
+
+
+
+enum CHANNEL_STATE {
+ CHANNEL_STATE_FREE = 0,
+ CHANNEL_STATE_WORK = 1
+};
+
+struct _channel {
+ enum CHANNEL_STATE state;
+ usbh_packet_t packet;
+ uint32_t data_index; //used in receive function
+ uint8_t error_count;
+};
+typedef struct _channel channel_t;
+
+enum DEVICE_STATE {
+ DEVICE_STATE_INIT = 0,
+ DEVICE_STATE_RUN = 1,
+ DEVICE_STATE_RESET = 2
+};
+
+enum DEVICE_POLL_STATE {
+ DEVICE_POLL_STATE_DISCONN = 0,
+ DEVICE_POLL_STATE_DEVCONN = 1,
+ DEVICE_POLL_STATE_DEVRST = 2,
+ DEVICE_POLL_STATE_RUN = 3
+};
+
+struct _usbh_lld_stm32f4_driver_data {
+ usbh_generic_data_t generic;
+ const uint32_t base;
+ channel_t *channels;
+ const uint8_t num_channels;
+
+ uint32_t poll_sequence;
+ enum DEVICE_POLL_STATE dpstate;
+ enum DEVICE_STATE state;
+ uint32_t state_prev;//for reset only
+ uint32_t time_curr_us;
+ uint32_t timestamp_us;
+};
+typedef struct _usbh_lld_stm32f4_driver_data usbh_lld_stm32f4_driver_data_t;
+
+
+
+/*
+ * Define correct REBASE. If only one driver is enabled use directly OTG base
+ *
+ */
+#if defined(USE_STM32F4_USBH_DRIVER_FS) || \
+ defined(USE_STM32F4_USBH_DRIVER_HS)
+
+#if defined(USE_STM32F4_USBH_DRIVER_FS) && \
+ defined(USE_STM32F4_USBH_DRIVER_HS)
+#define REBASE(reg) MMIO32(dev->base + reg)
+#define REBASE_CH(reg, x) MMIO32(dev->base + reg(x))
+#elif defined(USE_STM32F4_USBH_DRIVER_FS)
+#define REBASE(reg) MMIO32(USB_OTG_FS_BASE + reg)
+#define REBASE_CH(reg, x) MMIO32(USB_OTG_FS_BASE + reg(x))
+#elif defined(USE_STM32F4_USBH_DRIVER_HS)
+#define REBASE(reg) MMIO32(USB_OTG_HS_BASE + reg)
+#define REBASE_CH(reg, x) MMIO32(USB_OTG_HS_BASE + reg(x))
+#endif
+
+
+static void stm32f4_usbh_init(void *drvdata);
+static enum USBH_POLL_STATUS stm32f4_usbh_poll(void *drvdata, uint32_t time_curr_us);
+static void stm32f4_usbh_read(void *drvdata, usbh_packet_t *packet);
+static void stm32f4_usbh_write(void *drvdata, const usbh_packet_t *packet);
+uint8_t stm32f4_root_speed(void *drvdata);
+
+static int8_t get_free_channel(void *drvdata);
+static void channels_init(void *drvdata);
+static void rxflvl_handle(void *drvdata);
+static void free_channel(void *drvdata, uint8_t channel);
+
+// USB Full Speed - OTG_FS
+#if defined(USE_STM32F4_USBH_DRIVER_FS)
+#define NUM_CHANNELS_FS (8)
+static channel_t channels_fs[NUM_CHANNELS_FS];
+static usbh_lld_stm32f4_driver_data_t driver_data_fs = {
+ .base = USB_OTG_FS_BASE,
+ .channels = channels_fs,
+ .num_channels = NUM_CHANNELS_FS
+};
+const usbh_driver_t stm32f4_usbh_driver_fs = {
+ .init = stm32f4_usbh_init,
+ .poll = stm32f4_usbh_poll,
+ .read = stm32f4_usbh_read,
+ .write = stm32f4_usbh_write,
+ .root_speed = stm32f4_root_speed,
+ .driver_data = &driver_data_fs
+};
+#endif
+
+// USB High Speed - OTG_HS
+#if defined(USE_STM32F4_USBH_DRIVER_HS)
+#define NUM_CHANNELS_HS (12)
+static channel_t channels_hs[NUM_CHANNELS_HS];
+static usbh_lld_stm32f4_driver_data_t driver_data_hs = {
+ .base = USB_OTG_HS_BASE,
+ .channels = channels_hs,
+ .num_channels = NUM_CHANNELS_HS
+};
+const usbh_driver_t stm32f4_usbh_driver_hs = {
+ .init = stm32f4_usbh_init,
+ .poll = stm32f4_usbh_poll,
+ .read = stm32f4_usbh_read,
+ .write = stm32f4_usbh_write,
+ .root_speed = stm32f4_root_speed,
+ .driver_data = &driver_data_hs
+};
+#endif
+
+
+
+static inline void reset_start(usbh_lld_stm32f4_driver_data_t *dev)
+{
+
+ // apply reset condition on port
+ REBASE(OTG_HPRT) |= OTG_HPRT_PRST;
+
+ // push current state to stack
+ dev->state_prev = dev->state;
+
+ // move to new state
+ dev->state = DEVICE_STATE_RESET;
+
+ // schedule disable reset condition after ~10ms
+ dev->timestamp_us = dev->time_curr_us;
+}
+
+/**
+ * Should be nonblocking
+ *
+ */
+static void stm32f4_usbh_init(void *drvdata)
+{
+ usbh_lld_stm32f4_driver_data_t *dev = drvdata;
+ dev->state = DEVICE_STATE_INIT;
+ dev->poll_sequence = 0;
+ dev->timestamp_us = dev->time_curr_us;
+
+ //Disable interrupts first
+ REBASE(OTG_GAHBCFG) &= ~OTG_GAHBCFG_GINT;
+
+ // Select full speed phy
+ REBASE(OTG_GUSBCFG) |= OTG_GUSBCFG_PHYSEL;
+}
+
+static void stm32f4_usbh_port_channel_setup(
+ void *drvdata, uint32_t channel, uint32_t address,
+ uint32_t eptyp, uint32_t epnum, uint32_t epdir,
+ uint32_t max_packet_size)
+{
+ usbh_lld_stm32f4_driver_data_t *dev = drvdata;
+ channel_t *channels = dev->channels;
+
+ // TODO: maybe to function
+ switch (eptyp) {
+ case USBH_EPTYP_CONTROL:
+ eptyp = OTG_HCCHAR_EPTYP_CONTROL;
+ break;
+ case USBH_EPTYP_BULK:
+ eptyp = OTG_HCCHAR_EPTYP_BULK;
+ break;
+ case USBH_EPTYP_INTERRUPT:
+ eptyp = OTG_HCCHAR_EPTYP_INTERRUPT;
+ break;
+ case USBH_EPTYP_ISOCHRONOUS:
+ eptyp = OTG_HCCHAR_EPTYP_ISOCHRONOUS;
+ break;
+ }
+
+ uint32_t speed = 0;
+ if (channels[channel].packet.speed == USBH_SPEED_LOW) {
+ speed = OTG_HCCHAR_LSDEV;
+ }
+
+ REBASE_CH(OTG_HCCHAR, channel) = OTG_HCCHAR_CHENA |
+ (OTG_HCCHAR_DAD_MASK & (address << 22)) |
+ OTG_HCCHAR_MCNT_1 |
+ (OTG_HCCHAR_EPTYP_MASK & (eptyp << 18)) |
+ (speed) |
+ (epdir) |
+ (OTG_HCCHAR_EPNUM_MASK & (epnum << 11) )|
+ (OTG_HCCHAR_MPSIZ_MASK & max_packet_size);
+
+}
+
+
+/**
+ * TODO: Check for maximum datalength
+ */
+static void stm32f4_usbh_read(void *drvdata, usbh_packet_t *packet)
+{
+ usbh_lld_stm32f4_driver_data_t *dev = drvdata;
+ channel_t *channels = dev->channels;
+
+ int8_t channel = get_free_channel(dev);
+ if (channel == -1) {
+ // BIG PROBLEM
+ LOG_PRINTF("FATAL ERROR IN, NO CHANNEL LEFT \r\n");
+ usbh_packet_callback_data_t cb_data;
+ cb_data.status = USBH_PACKET_CALLBACK_STATUS_EFATAL;
+ cb_data.transferred_length = 0;
+ packet->callback(packet->callback_arg, cb_data);
+ return;
+ }
+
+ channels[channel].data_index = 0;
+ channels[channel].packet = *packet;
+
+ uint32_t dpid;
+ if (packet->toggle[0]) {
+ dpid = OTG_HCTSIZ_DPID_DATA1;
+ } else {
+ dpid = OTG_HCTSIZ_DPID_DATA0;
+ }
+
+ uint32_t num_packets;
+ if (packet->datalen) {
+ num_packets = ((packet->datalen - 1) / packet->endpoint_size_max) + 1;
+ } else {
+ num_packets = 0;
+ }
+
+ REBASE_CH(OTG_HCTSIZ, channel) = dpid | (num_packets << 19) | packet->datalen;
+
+ stm32f4_usbh_port_channel_setup(dev, channel,
+ packet->address,
+ packet->endpoint_type,
+ packet->endpoint_address,
+ OTG_HCCHAR_EPDIR_IN,
+ packet->endpoint_size_max);
+}
+
+/**
+ *
+ * Bug: datalen > max_packet_size ...
+ */
+static void stm32f4_usbh_write(void *drvdata, const usbh_packet_t *packet)
+{
+ usbh_lld_stm32f4_driver_data_t *dev = drvdata;
+ channel_t *channels = dev->channels;
+
+ int8_t channel = get_free_channel(dev);
+
+ if (channel == -1) {
+ // BIG PROBLEM
+ LOG_PRINTF("FATAL ERROR OUT, NO CHANNEL LEFT \r\n");
+ usbh_packet_callback_data_t cb_data;
+ cb_data.status = USBH_PACKET_CALLBACK_STATUS_EFATAL;
+ cb_data.transferred_length = 0;
+ packet->callback(packet->callback_arg, cb_data);
+ return;
+ }
+
+ channels[channel].data_index = 0;
+ channels[channel].packet = *packet;
+
+ uint32_t dpid;
+ if (packet->endpoint_type == USBH_EPTYP_CONTROL) {
+ dpid = OTG_HCTSIZ_DPID_MDATA;
+ packet->toggle[0] = 0;
+ } else if(packet->endpoint_type == USBH_EPTYP_INTERRUPT) {
+ if (packet->toggle[0]) {
+ dpid = OTG_HCTSIZ_DPID_DATA1;
+ } else {
+ dpid = OTG_HCTSIZ_DPID_DATA0;
+ }
+ } else if (packet->endpoint_type == USBH_EPTYP_BULK) {
+ if (packet->toggle[0]) {
+ dpid = OTG_HCTSIZ_DPID_DATA1;
+ } else {
+ dpid = OTG_HCTSIZ_DPID_DATA0;
+ }
+ } else {
+ dpid = OTG_HCTSIZ_DPID_DATA0; // ! TODO: BUG
+ LOG_PRINTF("BUG, %d",__LINE__);
+ }
+
+ uint32_t num_packets;
+ if (packet->datalen) {
+ num_packets = ((packet->datalen - 1) / packet->endpoint_size_max) + 1;
+ } else {
+ num_packets = 1;
+ }
+ REBASE_CH(OTG_HCTSIZ, channel) = dpid | (num_packets << 19) | packet->datalen;
+
+ stm32f4_usbh_port_channel_setup(dev, channel,
+ packet->address,
+ packet->endpoint_type,
+ packet->endpoint_address,
+ OTG_HCCHAR_EPDIR_OUT,
+ packet->endpoint_size_max);
+
+ if (packet->endpoint_type == USBH_EPTYP_CONTROL ||
+ packet->endpoint_type == USBH_EPTYP_BULK) {
+
+ volatile uint32_t *fifo = &REBASE_CH(OTG_FIFO, channel) + RX_FIFO_SIZE;
+ const uint32_t * buf32 = packet->data;
+ uint32_t i;
+ for(i = packet->datalen; i > 0; i-=4) {
+ *fifo++ = *buf32++;
+ }
+ } else {
+ volatile uint32_t *fifo = &REBASE_CH(OTG_FIFO, channel) +
+ RX_FIFO_SIZE + TX_NP_FIFO_SIZE;
+ const uint32_t * buf32 = packet->data;
+ uint32_t i;
+ for(i = packet->datalen; i > 0; i-=4) {
+ *fifo++ = *buf32++;
+ }
+ }
+ LOG_PRINTF("->WRITE %08X\r\n", REBASE_CH(OTG_HCCHAR, channel));
+}
+
+static void rxflvl_handle(void *drvdata)
+{
+ usbh_lld_stm32f4_driver_data_t *dev = drvdata;
+ channel_t *channels = dev->channels;
+ uint32_t rxstsp = REBASE(OTG_GRXSTSP);
+ uint8_t channel = rxstsp&0xf;
+ uint32_t len = (rxstsp>>4) & 0x1ff;
+ if ((rxstsp&OTG_GRXSTSP_PKTSTS_MASK) == OTG_GRXSTSP_PKTSTS_IN) {
+ uint8_t *data = channels[channel].packet.data;
+ uint32_t *buf32 = (uint32_t *)&data[channels[channel].data_index];
+
+ int32_t i;
+ uint32_t extra;
+ if (!len) {
+ return;
+ }
+ // Receive data from fifo
+ volatile uint32_t *fifo = &REBASE_CH(OTG_FIFO, channel);
+ for (i = len; i > 4; i -= 4) {
+ *buf32++ = *fifo++;
+ }
+ extra = *fifo;
+
+ memcpy(buf32, &extra, i);
+ channels[channel].data_index += len;
+
+ // If transfer not complete, Enable channel to continue
+ if ( channels[channel].data_index < channels[channel].packet.datalen) {
+ if (len == channels[channel].packet.endpoint_size_max) {
+ REBASE_CH(OTG_HCCHAR, channel) |= OTG_HCCHAR_CHENA;
+ LOG_PRINTF("CHENA[%d/%d] ", channels[channel].data_index, channels[channel].packet.datalen);
+ }
+
+ }
+
+ } else if ((rxstsp&OTG_GRXSTSP_PKTSTS_MASK) == OTG_GRXSTSP_PKTSTS_IN_COMP) {
+#ifdef USART_DEBUG
+ uint32_t i;
+ LOG_PRINTF("\r\nDATA: ");
+ for (i = 0; i < channels[channel].data_index; i++) {
+ uint8_t *data = channels[channel].packet.data;
+ LOG_PRINTF("%02X ", data[i]);
+ }
+#endif
+ } else if ((rxstsp&OTG_GRXSTSP_PKTSTS_MASK) == OTG_GRXSTSP_PKTSTS_CHH) {
+
+ } else {
+
+ }
+}
+
+
+static enum USBH_POLL_STATUS poll_run(usbh_lld_stm32f4_driver_data_t *dev)
+{
+ channel_t *channels = dev->channels;
+
+ if (dev->dpstate == DEVICE_POLL_STATE_DISCONN) {
+ REBASE(OTG_GINTSTS) = REBASE(OTG_GINTSTS);
+ // Check for connection of device
+ if ((REBASE(OTG_HPRT) & OTG_HPRT_PCDET) &&
+ (REBASE(OTG_HPRT) & OTG_HPRT_PCSTS) ) {
+
+ dev->dpstate = DEVICE_POLL_STATE_DEVCONN;
+ dev->timestamp_us = dev->time_curr_us;
+ return USBH_POLL_STATUS_NONE;
+ }
+ }
+
+ if (dev->dpstate == DEVICE_POLL_STATE_DEVCONN) {
+ // May be other condition, e.g. Debounce done,
+ // using 0.5s wait by default
+ if (dev->time_curr_us - dev->timestamp_us < 500000) {
+ return USBH_POLL_STATUS_NONE;
+ }
+
+ if ((REBASE(OTG_HPRT) & OTG_HPRT_PCDET) &&
+ (REBASE(OTG_HPRT) & OTG_HPRT_PCSTS) ) {
+ if ((REBASE(OTG_HPRT) & OTG_HPRT_PSPD_MASK) == OTG_HPRT_PSPD_FULL) {
+ REBASE(OTG_HFIR) = (REBASE(OTG_HFIR) & ~OTG_HFIR_FRIVL_MASK) | 48000;
+ if ((REBASE(OTG_HCFG) & OTG_HCFG_FSLSPCS_MASK) != OTG_HCFG_FSLSPCS_48MHz) {
+ REBASE(OTG_HCFG) = (REBASE(OTG_HCFG) & ~OTG_HCFG_FSLSPCS_MASK) | OTG_HCFG_FSLSPCS_48MHz;
+ LOG_PRINTF("\r\n Reset Full-Speed \r\n");
+ }
+ channels_init(dev);
+ dev->dpstate = DEVICE_POLL_STATE_DEVRST;
+ reset_start(dev);
+
+ } else if ((REBASE(OTG_HPRT) & OTG_HPRT_PSPD_MASK) == OTG_HPRT_PSPD_LOW) {
+ REBASE(OTG_HFIR) = (REBASE(OTG_HFIR) & ~OTG_HFIR_FRIVL_MASK) | 6000;
+ if ((REBASE(OTG_HCFG) & OTG_HCFG_FSLSPCS_MASK) != OTG_HCFG_FSLSPCS_6MHz) {
+ REBASE(OTG_HCFG) = (REBASE(OTG_HCFG) & ~OTG_HCFG_FSLSPCS_MASK) | OTG_HCFG_FSLSPCS_6MHz;
+ LOG_PRINTF("\r\n Reset Low-Speed \r\n");
+ }
+
+ channels_init(dev);
+ dev->dpstate = DEVICE_POLL_STATE_DEVRST;
+ reset_start(dev);
+ }
+ return USBH_POLL_STATUS_NONE;
+ }
+ }
+
+ if (dev->dpstate == DEVICE_POLL_STATE_DEVRST) {
+ if (dev->time_curr_us - dev->timestamp_us < 210000) {
+ return USBH_POLL_STATUS_NONE;
+ } else {
+ dev->dpstate = DEVICE_POLL_STATE_RUN;
+ }
+ }
+
+ // ELSE RUN
+
+ if (REBASE(OTG_GINTSTS) & OTG_GINTSTS_SOF) {
+ REBASE(OTG_GINTSTS) = OTG_GINTSTS_SOF;
+ }
+
+ while (REBASE(OTG_GINTSTS) & OTG_GINTSTS_RXFLVL) {
+ //receive data
+ rxflvl_handle(dev);
+ }
+
+ if (REBASE(OTG_GINTSTS) & OTG_GINTSTS_HPRTINT) {
+ if (REBASE(OTG_HPRT) & OTG_HPRT_PENCHNG) {
+ uint32_t hprt = REBASE(OTG_HPRT);
+ // Clear Interrupt
+ // HARDWARE BUG - not mentioned in errata
+ // To clear interrupt write 0 to PENA
+ // To disable port write 1 to PENCHNG
+ REBASE(OTG_HPRT) &= ~OTG_HPRT_PENA;
+ LOG_PRINTF("PENCHNG");
+ if ((hprt & OTG_HPRT_PENA)) {
+ return USBH_POLL_STATUS_DEVICE_CONNECTED;
+ }
+
+ }
+
+ if (REBASE(OTG_HPRT) & OTG_HPRT_POCCHNG) {
+ // TODO: Check for functionality
+ REBASE(OTG_HPRT) |= OTG_HPRT_POCCHNG;
+ LOG_PRINTF("POCCHNG");
+ }
+ }
+
+ if (REBASE(OTG_GINTSTS) & OTG_GINTSTS_DISCINT) {
+ REBASE(OTG_GINTSTS) = OTG_GINTSTS_DISCINT;
+ LOG_PRINTF("DISCINT");
+
+ /*
+ * When the voltage drops, DISCINT interrupt is generated although
+ * Device is connected, so there is no need to reinitialize channels.
+ * Often, DISCINT is bad interpreted upon insertion of device
+ */
+ if (!(REBASE(OTG_HPRT) & OTG_HPRT_PCSTS)) {
+ LOG_PRINTF("discint processsing...");
+ channels_init(dev);
+ }
+ REBASE(OTG_GINTSTS) = REBASE(OTG_GINTSTS);
+ dev->dpstate = DEVICE_POLL_STATE_DISCONN;
+ return USBH_POLL_STATUS_DEVICE_DISCONNECTED;
+ }
+
+ if (REBASE(OTG_GINTSTS) & OTG_GINTSTS_HCINT) {
+ uint32_t channel;
+
+ for(channel = 0; channel < dev->num_channels; channel++)
+ {
+ if (channels[channel].state != CHANNEL_STATE_WORK ||
+ !(REBASE(OTG_HAINT)&(1<<channel))) {
+ continue;
+ }
+ uint32_t hcint = REBASE_CH(OTG_HCINT, channel);
+ uint8_t eptyp = channels[channel].packet.endpoint_type;
+
+ // Write
+ if (!(REBASE_CH(OTG_HCCHAR, channel)&OTG_HCCHAR_EPDIR_IN)) {
+
+ if (hcint & OTG_HCINT_NAK) {
+ REBASE_CH(OTG_HCINT, channel) = OTG_HCINT_NAK;
+ LOG_PRINTF("NAK");
+
+ REBASE_CH(OTG_HCCHAR, channel) |= OTG_HCCHAR_CHENA;
+
+ }
+
+ if (hcint & OTG_HCINT_ACK) {
+ REBASE_CH(OTG_HCINT, channel) = OTG_HCINT_ACK;
+ LOG_PRINTF("ACK");
+ if (eptyp == USBH_EPTYP_CONTROL) {
+ channels[channel].packet.toggle[0] = 1;
+ } else {
+ channels[channel].packet.toggle[0] ^= 1;
+ }
+ }
+
+ if (hcint & OTG_HCINT_XFRC) {
+ REBASE_CH(OTG_HCINT, channel) = OTG_HCINT_XFRC;
+ LOG_PRINTF("XFRC");
+
+ free_channel(dev, channel);
+
+ usbh_packet_callback_data_t cb_data;
+ cb_data.status = USBH_PACKET_CALLBACK_STATUS_OK;
+ cb_data.transferred_length = channels[channel].data_index;
+
+ channels[channel].packet.callback(
+ channels[channel].packet.callback_arg,
+ cb_data);
+ continue;
+ }
+
+ if (hcint & OTG_HCINT_FRMOR) {
+ REBASE_CH(OTG_HCINT, channel) = OTG_HCINT_FRMOR;
+ LOG_PRINTF("FRMOR");
+
+ usbh_packet_callback_data_t cb_data;
+ cb_data.status = USBH_PACKET_CALLBACK_STATUS_EFATAL;
+ cb_data.transferred_length = 0;
+
+ channels[channel].packet.callback(
+ channels[channel].packet.callback_arg,
+ cb_data);
+ free_channel(dev, channel);
+ }
+
+ if (hcint & OTG_HCINT_TXERR) {
+ REBASE_CH(OTG_HCINT, channel) = OTG_HCINT_TXERR;
+ LOG_PRINTF("TXERR");
+
+ free_channel(dev, channel);
+
+ usbh_packet_callback_data_t cb_data;
+ cb_data.status = USBH_PACKET_CALLBACK_STATUS_EAGAIN;
+ cb_data.transferred_length = 0;
+
+ channels[channel].packet.callback(
+ channels[channel].packet.callback_arg,
+ cb_data);
+
+
+ }
+
+ if (hcint & OTG_HCINT_STALL) {
+ REBASE_CH(OTG_HCINT, channel) = OTG_HCINT_STALL;
+ LOG_PRINTF("STALL");
+
+ free_channel(dev, channel);
+
+ usbh_packet_callback_data_t cb_data;
+ cb_data.status = USBH_PACKET_CALLBACK_STATUS_EFATAL;
+ cb_data.transferred_length = 0;
+
+
+ channels[channel].packet.callback(
+ channels[channel].packet.callback_arg,
+ cb_data);
+ }
+
+ if (hcint & OTG_HCINT_CHH) {
+ REBASE_CH(OTG_HCINT, channel) = OTG_HCINT_CHH;
+ LOG_PRINTF("CHH");
+
+ free_channel(dev, channel);
+ }
+ } else { // Read
+
+ if (hcint & OTG_HCINT_NAK) {
+ REBASE_CH(OTG_HCINT, channel) = OTG_HCINT_NAK;
+ if (eptyp == USBH_EPTYP_CONTROL) {
+ LOG_PRINTF("NAK");
+ }
+
+ REBASE_CH(OTG_HCCHAR, channel) |= OTG_HCCHAR_CHENA;
+
+ }
+
+ if (hcint & OTG_HCINT_DTERR) {
+ REBASE_CH(OTG_HCINT, channel) = OTG_HCINT_DTERR;
+ LOG_PRINTF("DTERR");
+ }
+
+ if (hcint & OTG_HCINT_ACK) {
+ REBASE_CH(OTG_HCINT, channel) = OTG_HCINT_ACK;
+ LOG_PRINTF("ACK");
+
+ channels[channel].packet.toggle[0] ^= 1;
+
+ }
+
+
+
+ if (hcint & OTG_HCINT_XFRC) {
+ REBASE_CH(OTG_HCINT, channel) = OTG_HCINT_XFRC;
+ LOG_PRINTF("XFRC");
+
+ free_channel(dev, channel);
+ usbh_packet_callback_data_t cb_data;
+ if (channels[channel].data_index == channels[channel].packet.datalen) {
+ cb_data.status = USBH_PACKET_CALLBACK_STATUS_OK;
+ } else {
+ cb_data.status = USBH_PACKET_CALLBACK_STATUS_ERRSIZ;
+ }
+ cb_data.transferred_length = channels[channel].data_index;
+
+ channels[channel].packet.callback(
+ channels[channel].packet.callback_arg,
+ cb_data);
+
+ continue;
+ }
+
+ if (hcint & OTG_HCINT_BBERR) {
+ REBASE_CH(OTG_HCINT, channel) = OTG_HCINT_BBERR;
+ LOG_PRINTF("BBERR");
+ free_channel(dev, channel);
+
+ usbh_packet_callback_data_t cb_data;
+ cb_data.status = USBH_PACKET_CALLBACK_STATUS_EFATAL;
+ cb_data.transferred_length = 0;
+
+ channels[channel].packet.callback(
+ channels[channel].packet.callback_arg,
+ cb_data);
+ }
+
+ if (hcint & OTG_HCINT_FRMOR) {
+ REBASE_CH(OTG_HCINT, channel) = OTG_HCINT_FRMOR;
+ LOG_PRINTF("FRMOR");
+
+ }
+
+ if (hcint & OTG_HCINT_TXERR) {
+ REBASE_CH(OTG_HCINT, channel) = OTG_HCINT_TXERR;
+ LOG_PRINTF("TXERR");
+
+ free_channel(dev, channel);
+
+ usbh_packet_callback_data_t cb_data;
+ cb_data.status = USBH_PACKET_CALLBACK_STATUS_EFATAL;
+ cb_data.transferred_length = 0;
+
+ channels[channel].packet.callback(
+ channels[channel].packet.callback_arg,
+ cb_data);
+
+ }
+
+ if (hcint & OTG_HCINT_STALL) {
+ REBASE_CH(OTG_HCINT, channel) = OTG_HCINT_STALL;
+ LOG_PRINTF("STALL");
+
+ free_channel(dev, channel);
+
+ usbh_packet_callback_data_t cb_data;
+ cb_data.status = USBH_PACKET_CALLBACK_STATUS_EFATAL;
+ cb_data.transferred_length = 0;
+
+ channels[channel].packet.callback(
+ channels[channel].packet.callback_arg,
+ cb_data);
+
+ }
+ if (hcint & OTG_HCINT_CHH) {
+ REBASE_CH(OTG_HCINT, channel) = OTG_HCINT_CHH;
+ LOG_PRINTF("CHH");
+ free_channel(dev, channel);
+ }
+
+ }
+ }
+ }
+
+ if (REBASE(OTG_GINTSTS) & OTG_GINTSTS_MMIS) {
+ REBASE(OTG_GINTSTS) = OTG_GINTSTS_MMIS;
+ LOG_PRINTF("Mode mismatch");
+ }
+
+ if (REBASE(OTG_GINTSTS) & OTG_GINTSTS_IPXFR) {
+ REBASE(OTG_GINTSTS) = OTG_GINTSTS_IPXFR;
+ LOG_PRINTF("IPXFR");
+ }
+
+ return USBH_POLL_STATUS_NONE;
+}
+
+/*
+ * Sequence numbers are hardcoded, since it is used
+ * locally in poll_init() function.
+ * If value of poll_sequence is needed elsewhere, enum must be defined.
+ *
+ */
+static void poll_init(usbh_lld_stm32f4_driver_data_t *dev)
+{
+ //=======================================
+
+ int done = 0;
+ /* Wait for AHB idle. */
+ switch (dev->poll_sequence) {
+ case 0:// wait until AHBIDL is set
+ if (REBASE(OTG_GRSTCTL) & OTG_GRSTCTL_AHBIDL) {
+ done = 1;
+ }
+ break;
+
+ case 1:// wait 1ms and issue core soft reset
+
+ // needs delay to not hang?? Do not know why.
+ // Maybe after AHBIDL is set, it needs to set up some things
+ if (dev->time_curr_us - dev->timestamp_us > 1000) {
+ REBASE(OTG_GRSTCTL) |= OTG_GRSTCTL_CSRST;
+ done = 1;
+ }
+ break;
+
+ case 2:// wait until core soft reset processing is done
+ if (!(REBASE(OTG_GRSTCTL) & OTG_GRSTCTL_CSRST)) {
+ done = 1;
+ }
+ break;
+
+ case 3:// wait for 50ms
+ if (dev->time_curr_us - dev->timestamp_us > 50000) {
+ done = 1;
+ }
+ break;
+
+ case 4:// wait until AHBIDL is set and power up the USB
+ if (REBASE(OTG_GRSTCTL) & OTG_GRSTCTL_AHBIDL) {
+ REBASE(OTG_GCCFG) = OTG_GCCFG_VBUSASEN | OTG_GCCFG_VBUSBSEN |
+ OTG_GCCFG_NOVBUSSENS | OTG_GCCFG_PWRDWN;
+ done = 1;
+ }
+ break;
+
+ case 5:// wait for 50ms and force host only mode
+ if (dev->time_curr_us - dev->timestamp_us > 50000) {
+
+ // Core initialized
+ // Force host only mode.
+ REBASE(OTG_GUSBCFG) |= OTG_GUSBCFG_FHMOD;
+ done = 1;
+ }
+ break;
+
+ case 6:// wait for 200ms and reset PHY clock start reset processing
+ if (dev->time_curr_us - dev->timestamp_us > 200000) {
+ /* Restart the PHY clock. */
+ REBASE(OTG_PCGCCTL) = 0;
+
+ REBASE(OTG_HCFG) = (REBASE(OTG_HCFG) & ~OTG_HCFG_FSLSPCS_MASK) |
+ OTG_HCFG_FSLSPCS_48MHz;
+
+ // Start reset processing
+ REBASE(OTG_HPRT) |= OTG_HPRT_PRST;
+
+ done = 1;
+
+ }
+ break;
+
+ case 7:// wait for reset processing to be done(12ms), disable PRST
+ if (dev->time_curr_us - dev->timestamp_us > 12000) {
+
+ REBASE(OTG_HPRT) &= ~OTG_HPRT_PRST;
+ done = 1;
+ }
+ break;
+
+ case 8:// wait 12ms after PRST was disabled, configure fifo
+ if (dev->time_curr_us - dev->timestamp_us > 12000) {
+
+ REBASE(OTG_HCFG) &= ~OTG_HCFG_FSLSS;
+
+ REBASE(OTG_GRXFSIZ) = RX_FIFO_SIZE;
+ REBASE(OTG_GNPTXFSIZ) = (TX_NP_FIFO_SIZE << 16) |
+ RX_FIFO_SIZE;
+ REBASE(OTG_HPTXFSIZ) = (TX_P_FIFO_SIZE << 16) |
+ (RX_FIFO_SIZE + TX_NP_FIFO_SIZE);
+
+ // FLUSH RX FIFO
+ REBASE(OTG_GRSTCTL) |= OTG_GRSTCTL_RXFFLSH;
+
+ done = 1;
+ }
+ break;
+
+ case 9: // wait to RX FIFO become flushed, flush TX
+ if (!(REBASE(OTG_GRSTCTL) & OTG_GRSTCTL_RXFFLSH)) {
+ REBASE(OTG_GRSTCTL) |= OTG_GRSTCTL_TXFFLSH | (0x10 << 6);
+
+ done = 1;
+ }
+ break;
+
+ case 10: // wait to TX FIFO become flushed
+ if (!(REBASE(OTG_GRSTCTL) & OTG_GRSTCTL_TXFFLSH)) {
+
+ channels_init(dev);
+
+ REBASE(OTG_GOTGINT) |= 1 << 19;
+ REBASE(OTG_GINTMSK) = 0;
+ REBASE(OTG_GINTSTS) = ~0;
+ REBASE(OTG_HPRT) |= OTG_HPRT_PPWR;
+
+ done = 1;
+ }
+ break;
+
+ case 11: // wait 200ms
+ if (dev->time_curr_us - dev->timestamp_us > 200000) {
+
+ // Uncomment to enable Interrupt generation
+ REBASE(OTG_GAHBCFG) |= OTG_GAHBCFG_GINT;
+
+ LOG_PRINTF("INIT COMPLETE\r\n");
+
+ // Finish
+ dev->state = DEVICE_STATE_RUN;
+ dev->dpstate = DEVICE_POLL_STATE_DISCONN;
+
+ done = 1;
+ }
+ }
+
+ if (done) {
+ dev->poll_sequence++;
+ dev->timestamp_us = dev->time_curr_us;
+ LOG_PRINTF("\t\t POLL SEQUENCE %d\r\n", dev->poll_sequence);
+ }
+
+}
+
+static void poll_reset(usbh_lld_stm32f4_driver_data_t *dev)
+{
+ if (dev->time_curr_us - dev->timestamp_us > 10000) {
+ REBASE(OTG_HPRT) &= ~OTG_HPRT_PRST;
+ dev->state = dev->state_prev;
+ dev->state_prev = DEVICE_STATE_RESET;
+
+ LOG_PRINTF("RESET");
+ } else {
+ LOG_PRINTF("waiting %d < %d\r\n",dev->time_curr_us, dev->timestamp_us);
+ }
+}
+
+static enum USBH_POLL_STATUS stm32f4_usbh_poll(void *drvdata, uint32_t time_curr_us)
+{
+
+ (void)time_curr_us;
+ usbh_lld_stm32f4_driver_data_t *dev = drvdata;
+ uint32_t ret = ret = USBH_POLL_STATUS_NONE;
+
+ // TODO: Check overflow case
+ dev->time_curr_us = time_curr_us;
+
+ switch (dev->state) {
+ case DEVICE_STATE_RUN:
+ ret = poll_run(dev);
+ break;
+
+ case DEVICE_STATE_INIT:
+ poll_init(dev);
+ break;
+
+ case DEVICE_STATE_RESET:
+ poll_reset(dev);
+ break;
+ default:
+ break;
+ }
+
+ return ret;
+
+}
+
+
+/**
+ *
+ * Returns positive free channel id
+ * otherwise -1 for error
+ */
+static int8_t get_free_channel(void *drvdata)
+{
+ usbh_lld_stm32f4_driver_data_t *dev = drvdata;
+ channel_t *channels = dev->channels;
+ uint32_t i = 0;
+ for (i = 0; i < dev->num_channels; i++) {
+ if (dev->channels[i].state == CHANNEL_STATE_FREE &&
+ !(REBASE_CH(OTG_HCCHAR, i) & OTG_HCCHAR_CHENA)) {
+ channels[i].state = CHANNEL_STATE_WORK;
+ REBASE_CH(OTG_HCINT, i) = ~0;
+ REBASE_CH(OTG_HCINTMSK, i) |= OTG_HCINTMSK_ACKM | OTG_HCINTMSK_NAKM |
+ OTG_HCINTMSK_TXERRM | OTG_HCINTMSK_XFRCM |
+ OTG_HCINTMSK_DTERRM | OTG_HCINTMSK_BBERRM |
+ OTG_HCINTMSK_CHHM | OTG_HCINTMSK_STALLM |
+ OTG_HCINTMSK_FRMORM;
+ REBASE(OTG_HAINTMSK) |= (1 << i);
+ dev->channels[i].error_count = 0;
+ return i;
+ }
+ }
+ return -1;
+}
+
+/*
+ * Do not clear callback and callback data, so channel can be freed even before callback is called
+ * This saves number of active channels: When one transfer ends, in callback driver can write/read to this channel again (indirectly)
+ */
+static void free_channel(void *drvdata, uint8_t channel)
+{
+ usbh_lld_stm32f4_driver_data_t *dev = drvdata;
+ channel_t *channels = dev->channels;
+
+ if (REBASE_CH(OTG_HCCHAR, channel) & OTG_HCCHAR_CHENA) {
+ REBASE_CH(OTG_HCCHAR, channel) |= OTG_HCCHAR_CHDIS;
+ REBASE_CH(OTG_HCINT, channel) = ~0;
+ LOG_PRINTF("\r\nDisabling channel %d\r\n", channel);
+ } else {
+ channels[channel].state = CHANNEL_STATE_FREE;
+ }
+}
+/**
+ * Init channels
+ */
+static void channels_init(void *drvdata)
+{
+ usbh_lld_stm32f4_driver_data_t *dev = drvdata;
+
+ uint32_t i = 0;
+ for (i = 0; i < dev->num_channels; i++) {
+ REBASE_CH(OTG_HCINT, i) = ~0;
+ REBASE_CH(OTG_HCINTMSK, i) = 0x7ff;
+ free_channel(dev, i);
+ }
+
+ // Enable interrupt mask bits for all channels
+ REBASE(OTG_HAINTMSK) = (1 << dev->num_channels) - 1;
+}
+
+/**
+ * Get speed of connected device
+ *
+ */
+uint8_t stm32f4_root_speed(void *drvdata)
+{
+ usbh_lld_stm32f4_driver_data_t *dev = drvdata;
+ (void)dev;
+ uint32_t hprt_speed = REBASE(OTG_HPRT) & OTG_HPRT_PSPD_MASK;
+ if (hprt_speed == OTG_HPRT_PSPD_LOW) {
+ return USBH_SPEED_LOW;
+ } else if(hprt_speed == OTG_HPRT_PSPD_FULL) {
+ return USBH_SPEED_FULL;
+ } else if(hprt_speed == OTG_HPRT_PSPD_HIGH) {
+ return USBH_SPEED_HIGH;
+ } else {
+ // Should not happen(let the compiler be happy)
+ return USBH_SPEED_FULL;
+ }
+}
+#endif // if defined otg_hs or otg_fs
+
+
+#ifdef USART_DEBUG
+
+/**
+ * Just for debug
+ */
+void print_channels(const void *lld)
+{
+ usbh_lld_stm32f4_driver_data_t *dev = ((usbh_driver_t *)lld)->driver_data;
+ channel_t *channels = dev->channels;
+ int32_t i;
+ LOG_PRINTF("\r\nCHANNELS: \r\n");
+ for (i = 0;i < dev->num_channels;i++) {
+ LOG_PRINTF("%4d %4d %4d %08X\r\n", channels[i].state, channels[i].packet.address, channels[i].packet.datalen, MMIO32(dev->base + OTG_HCINT(i)));
+ }
+}
+#endif
+
+
+const void *usbh_lld_stm32f4_drivers[] = {
+#if defined(USE_STM32F4_USBH_DRIVER_FS)
+ &stm32f4_usbh_driver_fs,
+#endif
+
+#if defined(USE_STM32F4_USBH_DRIVER_HS)
+ &stm32f4_usbh_driver_hs,
+#endif
+ 0
+};
generated by cgit (git 2.34.1) at 2024-09-28 22:39:04 +0000