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libusbhost: Open source USB host stack for embedded devices

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First public version, date: 1.4.2015

Signed-off-by: Amir Hammad <amir.hammad@hotmail.com>
This commit is contained in:
Amir Hammad 2015-04-01 16:22:05 +02:00
commit 7acc6fe474
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*.o
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*.hex
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[submodule "libopencm3"]
path = libopencm3
url = https://amirhammad@github.com/amirhammad/libopencm3

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For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

165
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GNU LESSER GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
This version of the GNU Lesser General Public License incorporates
the terms and conditions of version 3 of the GNU General Public
License, supplemented by the additional permissions listed below.
0. Additional Definitions.
As used herein, "this License" refers to version 3 of the GNU Lesser
General Public License, and the "GNU GPL" refers to version 3 of the GNU
General Public License.
"The Library" refers to a covered work governed by this License,
other than an Application or a Combined Work as defined below.
An "Application" is any work that makes use of an interface provided
by the Library, but which is not otherwise based on the Library.
Defining a subclass of a class defined by the Library is deemed a mode
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A "Combined Work" is a work produced by combining or linking an
Application with the Library. The particular version of the Library
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The "Minimal Corresponding Source" for a Combined Work means the
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The "Corresponding Application Code" for a Combined Work means the
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and utility programs needed for reproducing the Combined Work from the
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1. Exception to Section 3 of the GNU GPL.
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is a work based on the Library, and explaining where to find the
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6. Revised Versions of the GNU Lesser General Public License.
The Free Software Foundation may publish revised and/or new versions
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versions will be similar in spirit to the present version, but may
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TODO
See usbh_driver*.c in src directory for example of device drivers.

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##
## This file is part of the libusbhost project.
## Imported and adopted from libopencm3 project.
##
## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
## Copyright (C) 2010 Piotr Esden-Tempski <piotr@esden.net>
## Copyright (C) 2013 Frantisek Burian <BuFran@seznam.cz>
## Copyright (C) 2014 Amir Hammad <amir.hammad@hotmail.com>
##
## This library is free software: you can redistribute it and/or modify
## it under the terms of the GNU Lesser General Public License as published by
## the Free Software Foundation, either version 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/>.
##
BINARY = demo
BINARY := $(addprefix build/, demo)
LIBUSBHOSTNAME = usbhost
LIBUSBHOST := $(addprefix build/lib, $(LIBUSBHOSTNAME))
LIBNAME = opencm3_stm32f4
DEFS = -DSTM32F4
# load user config
include config.mk
DEFS += $(USER_CONFIG)
ifdef USART_DEBUG
DEFS += -DUSART_DEBUG
endif
DEFS += -Iinclude
LDSCRIPT = lib$(LIBNAME).ld
SRCDIR = src
OPENCM3_DIR ?= ./libopencm3
FP_FLAGS ?= -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mfp16-format=alternative
ARCH_FLAGS = -mthumb -mcpu=cortex-m4 $(FP_FLAGS)
################################################################################
# OpenOCD specific variables
OOCD ?= openocd
OOCD_INTERFACE ?= stlink-v2
OOCD_BOARD ?= stm32f4discovery
################################################################################
# Black Magic Probe specific variables
# Set the BMP_PORT to a serial port and then BMP is used for flashing
BMP_PORT ?=
################################################################################
# texane/stlink specific variables
#STLINK_PORT ?= :4242
# Be silent per default, but 'make V=1' will show all compiler calls.
ifneq ($(V),1)
Q := @
NULL := 2>/dev/null
endif
###############################################################################
# Executables
PREFIX ?= arm-none-eabi
CC := $(PREFIX)-gcc
CXX := $(PREFIX)-g++
LD := $(PREFIX)-gcc
AR := $(PREFIX)-ar
AS := $(PREFIX)-as
OBJCOPY := $(PREFIX)-objcopy
OBJDUMP := $(PREFIX)-objdump
GDB := $(PREFIX)-gdb
STFLASH = $(shell which st-flash)
STYLECHECK := /checkpatch.pl
STYLECHECKFLAGS := --no-tree -f --terse --mailback
STYLECHECKFILES := $(shell find . -name '*.[ch]')
###############################################################################
# Source files
LDSCRIPT ?= $(BINARY).ld
SRCS = $(sort $(notdir $(wildcard $(SRCDIR)/*.c)))
OBJSDEMO = $(patsubst %.c, build/%.o ,$(SRCS))
OBJS = $(filter-out $(BINARY).o, $(OBJSDEMO))
INCLUDE_DIR = $(OPENCM3_DIR)/include
LIB_DIR = $(OPENCM3_DIR)/lib
SCRIPT_DIR = $(OPENCM3_DIR)/scripts
###############################################################################
# C flags
CFLAGS += -Ofast -g
CFLAGS += -Wextra -Wshadow -Wimplicit-function-declaration
CFLAGS += -Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes
CFLAGS += -fno-common -ffunction-sections -fdata-sections
###############################################################################
# C++ flags
CXXFLAGS += -Ofast -g
CXXFLAGS += -Wextra -Wshadow -Wredundant-decls -Weffc++
CXXFLAGS += -fno-common -ffunction-sections -fdata-sections
###############################################################################
# C & C++ preprocessor common flags
CPPFLAGS += -MD
CPPFLAGS += -Wall -Wundef
CPPFLAGS += -I$(INCLUDE_DIR) $(DEFS)
###############################################################################
# Linker flags
LDFLAGS += --static -nostartfiles
LDFLAGS += -L$(LIB_DIR)
LDFLAGS += -T$(LDSCRIPT)
LDFLAGS += -Wl,-Map=build/$*.map
LDFLAGS += -Wl,--gc-sections
ifeq ($(V),99)
LDFLAGS += -Wl,--print-gc-sections
endif
###############################################################################
# Used libraries
LDLIBS += -l$(LIBNAME)
LDLIBS += -Wl,--start-group -lc -lgcc -lnosys -Wl,--end-group
###############################################################################
###############################################################################
###############################################################################
.SUFFIXES: .elf .bin .hex .srec .list .map .images
.SECONDEXPANSION:
.SECONDARY:
all: elf bin lib
elf: $(BINARY).elf
bin: $(BINARY).bin
hex: $(BINARY).hex
srec: $(BINARY).srec
list: $(BINARY).list
lib: $(LIBUSBHOST).a
images: $(BINARY).images
flash: $(BINARY).flash
%.images: %.bin %.hex %.srec %.list %.map
@#printf "*** $* images generated ***\n"
%.bin: %.elf
@printf " OBJCOPY $(*).bin\n"
$(Q)$(OBJCOPY) -Obinary $(*).elf $(*).bin
%.hex: %.elf
@#printf " OBJCOPY $(*).hex\n"
$(Q)$(OBJCOPY) -Oihex $(*).elf $(*).hex
%.srec: %.elf
@#printf " OBJCOPY $(*).srec\n"
$(Q)$(OBJCOPY) -Osrec $(*).elf $(*).srec
%.list: %.elf
@#printf " OBJDUMP $(*).list\n"
$(Q)$(OBJDUMP) -S $(*).elf > $(*).list
-include $(OBJSDEMO:.o=.d)
build/%.elf build/%.map: $(OBJSDEMO) $(LDSCRIPT)
@printf " LD $(*).elf\n"
$(Q)$(LD) $(LDFLAGS) $(ARCH_FLAGS) $(OBJSDEMO) $(LDLIBS) -o build/$*.elf
build/%.o:$(SRCDIR)/%.c
@printf " CC $(*).c\n"
$(Q)$(CC) $(CFLAGS) $(CPPFLAGS) $(ARCH_FLAGS) -o $@ -c $(SRCDIR)/$*.c
build/%.o: $(SRCDIR)/%.cxx
@printf " CXX $(*).cxx\n"
$(Q)$(CXX) $(CXXFLAGS) $(CPPFLAGS) $(ARCH_FLAGS) -o $@ -c $(SRCDIR)/$(*).cxx
build/%.o: $(SRCDIR)/%.cpp
@printf " CXX $(*).cpp\n"
$(Q)$(CXX) $(CXXFLAGS) $(CPPFLAGS) $(ARCH_FLAGS) -o $@ -c $(SRCDIR)/$(*).cpp
$(LIB_DIR)/lib$(LIBNAME).a:
clean:
@#printf " CLEAN\n"
@rm -f build/*
%.stlink-flash: %.bin
@printf " FLASH $<\n"
$(Q)$(STFLASH) write $(*).bin 0x8000000
ifeq ($(STLINK_PORT),)
ifeq ($(BMP_PORT),)
ifeq ($(OOCD_SERIAL),)
%.flash: %.hex
@printf " FLASH $<\n"
@# IMPORTANT: Don't use "resume", only "reset" will work correctly!
$(Q)$(OOCD) -f interface/$(OOCD_INTERFACE).cfg \
-f board/$(OOCD_BOARD).cfg \
-c "init" -c "reset init" \
-c "flash write_image erase $(*).hex" \
-c "reset" \
-c "shutdown" $(NULL)
else
%.flash: %.hex
@printf " FLASH $<\n"
@# IMPORTANT: Don't use "resume", only "reset" will work correctly!
$(Q)$(OOCD) -f interface/$(OOCD_INTERFACE).cfg \
-f board/$(OOCD_BOARD).cfg \
-c "ft2232_serial $(OOCD_SERIAL)" \
-c "init" -c "reset init" \
-c "flash write_image erase $(*).hex" \
-c "reset" \
-c "shutdown" $(NULL)
endif
else
%.flash: %.elf
@printf " GDB $(*).elf (flash)\n"
$(Q)$(GDB) --batch \
-ex 'target extended-remote $(BMP_PORT)' \
-x $(SCRIPT_DIR)/black_magic_probe_flash.scr \
$(*).elf
endif
else
%.flash: %.elf
@printf " GDB $(*).elf (flash)\n"
$(Q)$(GDB) --batch \
-ex 'target extended-remote $(STLINK_PORT)' \
-x $(SCRIPT_DIR)/stlink_flash.scr \
$(*).elf
endif
.PHONY: images clean stylecheck styleclean elf bin hex srec list testing
-include $(OBJS:.o=.d)
build/lib$(LIBUSBHOSTNAME).a: $(OBJS)
@printf " LIB $@\n"
$(Q)$(AR) rcs $@ $(OBJS)

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###General Information
**This library is in an active development.**
**WARNING**: None of its features are considered stable !
This library implement usb host driver allowing users use
or write device drivers, which functionality
is abstracted of low level implementation.
Main objectives are:
- provide open-source(Lesser GPL3) usb host library for embedded devices
- execution speed: This library doesn't use blocking sleep,
making low overhead on runtime performance
- uses static allocation for all its buffers,
so no allocation and reallocation is affecting performance
(possibility of memory fragmentation. execution time indeterminism),
so no malloc(), realloc(), free().
- written in C, with the support to use it with C++.
- does not depend on any Operating System. Library libopencm3 is used for testing purposes and to get proper defines.
So no runtime dependency is on this library.
Currently supported devices (yet tested) are:
* stm32f407 (stm32f4 Discovery)
Native device drivers (mostly for demonstration purposes):
- HUB
- Gamepad - XBox compatible Controller
- mouse (draft: only displays raw data)
###Practical info
!!! Do not forget to invoke "make clean" before new build when defines change
**How to initialize repository**
> ./initRepo.sh
fetch libopencm3 submodule and compile needed libraries
**How to compile demo**
Edit config.mk for library configuration (By default Full speed OTG periphery on stm32f4 is supported)
> ./compileDemo.sh
compiles demo, that can be flashed into stm32f4 Discovery platform and debug by USART
**How to upload firmware (FLASH) to stm32f4 Discovery**
> sudo make flash
**How to view debug data**
connect uart to USART6 pins on gpios: GPIOC6(TX - data), GPIOC7(RX - not used)
configure uart baud on PC side to 921600 with 1 stop bit, no parity, 8bit data, no handshake
**How to compile library only**
> make lib
**libusbhost.a** is built without usart debug support
(check compileDemo.sh for hint on how to compile with debug)
###Contact
Amir Hammad - *amir.hammad@hotmail.com*
**Library is maintained there**
> http://github.com/libusbhost/libusbhost

0
build/.gitignore vendored Normal file
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2
compileDemo.sh Executable file
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#!/bin/sh
USART_DEBUG=1 OPENCM3_DIR=libopencm3 make all

10
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USER_CONFIG =
# Uncomment to enable OTG_HS support - low level driver
#USER_CONFIG += -DUSE_STM32F4_USBH_DRIVER_HS
# Uncomment to enable OTG_FS support - low level driver
USER_CONFIG += -DUSE_STM32F4_USBH_DRIVER_FS

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/*
* 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_DEVICE_DRIVER_
#define USBH_DEVICE_DRIVER_
#include "usbh_config.h"
#include "usbh_hubbed.h"
#include <stdint.h>
BEGIN_DECLS
#define USBH_EPTYP_CONTROL (0)
#define USBH_EPTYP_ISOCHRONOUS (1)
#define USBH_EPTYP_BULK (2)
#define USBH_EPTYP_INTERRUPT (3)
#define USBH_SPEED_FULL (0)
#define USBH_SPEED_LOW (1)
#define USBH_SPEED_HIGH (2)
enum USBH_PACKET_CALLBACK_STATUS {
USBH_PACKET_CALLBACK_STATUS_OK = 0,
USBH_PACKET_CALLBACK_STATUS_ERRSIZ = 1,
USBH_PACKET_CALLBACK_STATUS_EAGAIN = 2, // -- TODO: automatic handling of transmit errors 3xTXERR->FATAL
USBH_PACKET_CALLBACK_STATUS_EFATAL = 3
};
enum USBH_POLL_STATUS {
USBH_POLL_STATUS_NONE,
USBH_POLL_STATUS_DEVICE_CONNECTED,
USBH_POLL_STATUS_DEVICE_DISCONNECTED
};
struct _usbh_device {
uint16_t packet_size_max0;
int8_t address;
uint8_t speed; // (USBH_SPEED_*)
uint8_t state; // for enumeration purposes
uint8_t toggle0;
const usbh_dev_driver_t *drv;
void *drvdata;
const void *lld;
};
typedef struct _usbh_device usbh_device_t;
struct _usbh_packet_callback_data {
enum USBH_PACKET_CALLBACK_STATUS status;
uint32_t transferred_length;
};
typedef struct _usbh_packet_callback_data usbh_packet_callback_data_t;
typedef void (*usbh_packet_callback_t)(usbh_device_t *dev, usbh_packet_callback_data_t status);
struct _usbh_packet {
void *data; // Pointer to data
uint16_t datalen; // Data length 0..1023
int8_t address; // Device address
uint8_t endpoint_type; // Endpoint type (see USBH_EPTYP_*)
uint8_t endpoint_address; // Endpoint number 0..15
uint16_t endpoint_size_max; // Max packet size for an endpoint
uint8_t speed; // (USBH_SPEED_*)
uint8_t *toggle;
usbh_packet_callback_t callback;
void *callback_arg;
};
typedef struct _usbh_packet usbh_packet_t;
struct _usbh_driver {
void (*init)(void *drvdata);
void (*write)(void *drvdata, const usbh_packet_t *packet);
void (*read)(void *drvdata, usbh_packet_t *packet);
enum USBH_POLL_STATUS (*poll)(void *drvdata, uint32_t t_us);
uint8_t (*root_speed)(void *drvdata);
// Pointer to Low-level driver data
void *driver_data;
};
typedef struct _usbh_driver usbh_driver_t;
struct _usbh_generic_data {
usbh_device_t usbh_device[USBH_MAX_DEVICES];
uint8_t usbh_buffer[BUFFER_ONE_BYTES];
};
typedef struct _usbh_generic_data usbh_generic_data_t;
#define ERROR(arg) LOG_PRINTF("UNHANDLED_ERROR %d: file: %s, line: %d",\
arg, __FILE__, __LINE__)
/// Hub related functions
usbh_device_t *usbh_get_free_device(const usbh_device_t *dev);
bool usbh_enum_available(void);
void device_enumeration_start(usbh_device_t *dev);
/// All devices functions
///
void usbh_read(usbh_device_t *dev, usbh_packet_t *packet);
void usbh_write(usbh_device_t *dev, const usbh_packet_t *packet);
/// Helper functions
void device_xfer_control_read(void *data, uint16_t datalen, usbh_packet_callback_t callback, usbh_device_t *dev);
void device_xfer_control_write(void *data, uint16_t datalen, usbh_packet_callback_t callback, usbh_device_t *dev);
END_DECLS
#endif

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/*
* 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_CONFIG_
#define USBH_CONFIG_
// Max devices per hub
#define USBH_HUB_MAX_DEVICES (8)
// Max number of hub instancies
#define USBH_MAX_HUBS (2)
// Max devices
#define USBH_MAX_DEVICES (15)
// Min: 128
// Set this wisely
#define BUFFER_ONE_BYTES (2048)
// MOUSE
#define USBH_HID_MOUSE_MAX_DEVICES (2)
#define USBH_HID_MOUSE_BUFFER (32)
// Gamepad XBOX
#define USBH_GP_XBOX_MAX_DEVICES (2)
#define USBH_GP_XBOX_BUFFER (32)
/* Sanity checks */
#if (USBH_MAX_DEVICES > 127)
#error USBH_MAX_DEVICES > 127
#endif
#endif

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/*
* 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_GP_XBOX_
#define USBH_DRIVER_GP_XBOX_
#include "usbh_hubbed.h"
#include <stdint.h>
BEGIN_DECLS
#define GP_XBOX_DPAD_TOP (1 << 0)
#define GP_XBOX_DPAD_LEFT (1 << 1)
#define GP_XBOX_DPAD_BOTTOM (1 << 2)
#define GP_XBOX_DPAD_RIGHT (1 << 3)
#define GP_XBOX_BUTTON_X (1 << 4)
#define GP_XBOX_BUTTON_Y (1 << 5)
#define GP_XBOX_BUTTON_A (1 << 6)
#define GP_XBOX_BUTTON_B (1 << 7)
#define GP_XBOX_BUTTON_SELECT (1 << 8)
#define GP_XBOX_BUTTON_START (1 << 9)
#define GP_XBOX_BUTTON_LT (1 << 10)
#define GP_XBOX_BUTTON_RT (1 << 11)
#define GP_XBOX_BUTTON_XBOX (1 << 12)
#define GP_XBOX_BUTTON_AXIS_LEFT (1 << 13)
#define GP_XBOX_BUTTON_AXIS_RIGHT (1 << 14)
struct _gp_xbox_packet {
uint32_t buttons;
int16_t axis_left_x;
int16_t axis_left_y;
int16_t axis_right_x;
int16_t axis_right_y;
uint8_t axis_rear_left;
uint8_t axis_rear_right;
};
typedef struct _gp_xbox_packet gp_xbox_packet_t;
struct _gp_xbox_config {
void (*update)(uint8_t device_id, gp_xbox_packet_t data);
void (*notify_connected)(uint8_t device_id);
void (*notify_disconnected)(uint8_t device_id);
};
typedef struct _gp_xbox_config gp_xbox_config_t;
void gp_xbox_driver_init(const gp_xbox_config_t *config);
extern const usbh_dev_driver_t usbh_gp_xbox_driver;
END_DECLS
#endif

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/*
* 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_HID_MOUSE_
#define USBH_DRIVER_HID_MOUSE_
#include "usbh_hubbed.h"
#include <stdint.h>
BEGIN_DECLS
struct _hid_mouse_config {
void (*mouse_in_message_handler)(uint8_t device_id, const uint8_t *data);
};
typedef struct _hid_mouse_config hid_mouse_config_t;
void hid_mouse_driver_init(const hid_mouse_config_t *config);
extern const usbh_dev_driver_t usbh_hid_mouse_driver;
END_DECLS
#endif

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/*
* 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_
#define USBH_DRIVER_HUB_
#include "usbh_hubbed.h"
BEGIN_DECLS
void hub_driver_init(void);
extern const usbh_dev_driver_t usbh_hub_driver;
END_DECLS
#endif

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/*
* 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_HUBBED_
#define USBH_HUBBED_
#include "usbh_config.h"
#include <stdint.h>
/* This must be placed around external function declaration for C++
* support. */
#ifdef __cplusplus
# define BEGIN_DECLS extern "C" {
# define END_DECLS }
#else
# define BEGIN_DECLS
# define END_DECLS
#endif
BEGIN_DECLS
#ifndef bool
#define bool _Bool
#define false 0
#define true 1
#endif
// set to -1 to unused items
struct _usbh_dev_driver_info {
int32_t deviceClass;
int32_t deviceSubClass;
int32_t deviceProtocol;
int32_t idVendor;
int32_t idProduct;
int32_t ifaceClass;
int32_t ifaceSubClass;
int32_t ifaceProtocol;
};
typedef struct _usbh_dev_driver_info usbh_dev_driver_info_t;
struct _usbh_dev_driver {
bool (*analyze_descriptor)(void *drv, void *descriptor);
void *(*init)(void *usbh_dev);
void (*poll)(void *drvdata, uint32_t t_us);
void (*remove)(void *drvdata);
const usbh_dev_driver_info_t * const info;
};
typedef struct _usbh_dev_driver usbh_dev_driver_t;
void usbh_init(const void *drivers[], const usbh_dev_driver_t * const device_drivers[]);
void usbh_poll(uint32_t t_us);
END_DECLS
#endif

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/*
* 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_LLD_STM32F4_H_
#define USBH_LLD_STM32F4_H_
#include "usbh_hubbed.h"
#include <stdint.h>
BEGIN_DECLS
// pass this to usbh init
extern const void *usbh_lld_stm32f4_drivers[];
#ifdef USART_DEBUG
void print_channels(const void *drvdata);
#else
#define print_channels(arg) ((void)arg)
#endif
END_DECLS
#endif

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#!/bin/sh
git submodule init
git submodule update
make -C libopencm3 -j3 lib/stm32/f4

1
libopencm3 Submodule

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Subproject commit 798c1edf4d11e8a40a7263dc465fa225a63fa7e9

32
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/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
* Copyright (C) 2011 Stephen Caudle <scaudle@doceme.com>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 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/>.
*/
/* Linker script for ST STM32F4DISCOVERY (STM32F407VG, 1024K flash, 128K RAM). */
/* Define memory regions. */
MEMORY
{
rom (rx) : ORIGIN = 0x08000000, LENGTH = 1024K
ram (rwx) : ORIGIN = 0x20000000, LENGTH = 128K
}
/* Include the common ld script. */
INCLUDE ./libopencm3/lib/libopencm3_stm32f4.ld

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/*
* 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;
}

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/*
* 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

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/*
* 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

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/*
* 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;
}

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/*
* 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;
}

865
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/*
* 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;
}
}

108
src/usbh_driver_hub_private.h Normal file
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@ -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

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/*
* 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);
}

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