specchioriflesso/USB_Host_Shield_2.0
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Uploaded Andrew's example code

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Kristian Sloth Lauszus 2013-06-09 19:22:24 +02:00
parent 7d981b4361
commit b528925d9e
7 changed files with 695 additions and 0 deletions
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6
.gitmodules vendored Normal file
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[submodule "examples/testusbhostFAT/generic_storage"]
path = examples/testusbhostFAT/generic_storage
url = https://github.com/xxxajk/generic_storage
[submodule "examples/testusbhostFAT/xmem2"]
path = examples/testusbhostFAT/xmem2
url = https://github.com/xxxajk/xmem2

42
examples/testusbhostFAT/Makefile Executable file
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#
# These are set for a mega 1280 + quadram plus my serial patch.
# If you lack quadram, or want to disable LFN, just change _FS_TINY=1 _USE_LFN=0
#
# If your board is a mega 2560 uncomment the following two lines
# BOARD = mega2560
# PROGRAMMER = wiring
# ...and then comment out the following two lines
BOARD = mega
PROGRAMMER = arduino
# set your Arduino tty port here
PORT = /dev/ttyUSB0
EXTRA_FLAGS = -D _FS_TINY=0
EXTRA_FLAGS += -D _USE_LFN=1
# Don't worry if you don't have external RAM, xmem2 detects this situation.
# You *WILL* be wanting to get some kind of external ram on your mega in order to
# do anything that is intense.
EXTRA_FLAGS += -D HAVEXMEM=1
EXTRA_FLAGS += -D EXT_RAM_STACK=1
EXTRA_FLAGS += -D EXT_RAM_HEAP=1
EXTRA_FLAGS += -D DISABLE_SERIAL1
EXTRA_FLAGS += -D DISABLE_SERIAL2
EXTRA_FLAGS += -D DISABLE_SERIAL3
# You should not need to change this, but I place it here if you want to play.
# These are the defaults for the optimization of the flash and ram
#OPT_FLAGS = -Os -fno-exceptions -ffunction-sections -fdata-sections -MMD
# The following are the libraries used.
LIB_DIRS =
LIB_DIRS += ../libraries/xmem
LIB_DIRS += ../libraries/USB_Host_Shield_2.0
LIB_DIRS += ../libraries/generic_storage
# And finally, the part that brings everything together for you.
include ../Arduino_Makefile_master/_Makefile.master

10
examples/testusbhostFAT/README.md Executable file
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This small sketch tests the USB host shield mass storage library.
To compile this example you will need the following libraries as well:
* [xmem2](https://github.com/xxxajk/xmem2)
* [generic_storage FATfs](https://github.com/xxxajk/generic_storage)
It is recommended to use the bundled [Makefile](Makefile).
The master makefile can be found at the following repository: <https://github.com/xxxajk/Arduino_Makefile_master>.

6
examples/testusbhostFAT/avr-gdb.conf Executable file
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file build/testusbhostFAT.elf
target remote localhost:4242
set {int}0x802200 = 0xffff
set {int}0x802220 = 0x0000
#graph display `x /3xh 0x802200`

1
examples/testusbhostFAT/generic_storage Submodule

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Subproject commit b87902bf7a0934b62f43c2176fb11ea318da8629

629
examples/testusbhostFAT/testusbhostFAT.ino Executable file
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/*
* Mega + USB storage + optional expansion RAM + funky status LED,
* Includes interactive debug level setting, and supports emulated hot-plug.
*
* IMPORTANT! PLEASE USE Arduino 1.0.5 or better!
* Older versions HAVE MAJOR BUGS AND WILL NOT WORK AT ALL!
* Use of gcc-avr and lib-c that is newer than the Arduino version is even better.
*
*/
// Keep this at zero until enumeration is fixed.
// Set to 1 if you are fixing enumeration.
#define WANT_HUB_TEST 0
#ifndef HAVE_XMEM
// Set this to zero to disable xmem
#define HAVE_XMEM 1
#endif
#include <avr/pgmspace.h>
#if HAVE_XMEM
#include <xmem.h>
#endif
#include <avrpins.h>
#include <max3421e.h>
#include <usbhost.h>
#include <usb_ch9.h>
#include <address.h>
#include <Usb.h>
#if WANT_HUB_TEST
#include <usbhub.h>
#endif
#include <masstorage.h>
#include <message.h>
#include <avr/interrupt.h>
#include <PCpartition/PCPartition.h>
#include <Storage.h>
#include <FAT/FAT.h>
// Warning! Do not use this unless you are aware of what it does!
#if HAVE_XMEM
#define GOD_MODE 0
#endif
static FILE mystdout;
int led = 13; // the pin that the LED is attached to
volatile int brightness = 0; // how bright the LED is
volatile int fadeAmount = 80; // how many points to fade the LED by
volatile uint8_t current_state = 1;
volatile uint32_t LEDnext_time; // fade timeout
volatile uint8_t last_state = 0;
volatile boolean fatready = false;
volatile boolean partsready = false;
volatile boolean notified = false;
volatile uint32_t HEAPnext_time; // when to print out next heap report
volatile boolean runtest = false;
volatile boolean usbon = false;
volatile uint32_t usbon_time;
volatile boolean change = false;
volatile boolean reportlvl = false;
int cpart = 0;
PCPartition *PT;
#if WANT_HUB_TEST
#define MAX_HUBS 2
static USBHub *Hubs[MAX_HUBS];
#endif
static PFAT *Fats[MAX_PARTS];
static part_t parts[MAX_PARTS];
static storage_t sto[MAX_PARTS];
#define prescale1 ((1 << WGM12) | (1 << CS10))
#define prescale8 ((1 << WGM12) | (1 << CS11))
#define prescale64 ((1 << WGM12) | (1 << CS10) | (1 << CS11))
#define prescale256 ((1 << WGM12) | (1 << CS12))
#define prescale1024 ((1 << WGM12) | (1 << CS12) | (1 << CS10))
extern "C" unsigned int freeHeap();
/*
unsigned int getHeapend(){
extern unsigned int __heap_start;
if ((unsigned int)__brkval == 0) {
return (unsigned int)&__heap_start;
} else {
return (unsigned int)__brkval;
}
}
unsigned int freeHeap() {
if (SP < (unsigned int)__malloc_heap_start) {
return ((unsigned int)__malloc_heap_end - getHeapend());
} else {
return (SP - getHeapend());
}
}
*/
static int my_putc(char c, FILE *t) {
Serial.write(c);
}
void setup() {
for (int i = 0; i < MAX_PARTS; i++) {
Fats[i] = NULL;
}
// Set this to higher values to enable more debug information
// minimum 0x00, maximum 0xff
UsbDEBUGlvl = 0x51;
// declare pin 9 to be an output:
pinMode(led, OUTPUT);
pinMode(2, OUTPUT);
// Initialize 'debug' serial port
Serial.begin(115200);
//fdevopen(&my_putc, 0);
// too bad we can't tinker with iob directly, oh well.
mystdout.put = my_putc;
mystdout.get = NULL;
mystdout.flags = _FDEV_SETUP_WRITE;
mystdout.udata = 0;
stdout = &mystdout;
// Blink pin 9:
delay(500);
analogWrite(led, 255);
delay(500);
analogWrite(led, 0);
delay(500);
analogWrite(led, 255);
delay(500);
analogWrite(led, 0);
delay(500);
analogWrite(led, 255);
delay(500);
analogWrite(led, 0);
printf_P(PSTR("\r\n\n\n\n\n\n\n\n\n\n\n\n\n\n\nStart\r\n"));
printf_P(PSTR("Current UsbDEBUGlvl %02x\r\n"), UsbDEBUGlvl);
printf_P(PSTR("'+' and '-' increase/decrease by 0x01\r\n"));
printf_P(PSTR("'.' and ',' increase/decrease by 0x10\r\n"));
printf_P(PSTR("'t' will run a 10MB write/read test and print out the time it took.\r\n"));
printf_P(PSTR("'e' will toggle vbus off for a few moments.\r\n"));
printf_P(PSTR("\r\n\r\nLong filename support: "
#if _USE_LFN
"Enabled"
#else
"Disabled"
#endif
"\r\n"));
analogWrite(led, 255);
delay(500);
analogWrite(led, 0);
delay(500);
delay(100);
analogWrite(led, 255);
delay(100);
analogWrite(led, 0);
LEDnext_time = millis() + 1;
#ifdef EXT_RAM
printf_P(PSTR("Total EXT RAM banks %i\r\n"), xmem::getTotalBanks());
#endif
printf_P(PSTR("Available heap: %u Bytes\r\n"), freeHeap());
printf_P(PSTR("SP %x\r\n"), (uint8_t *)(SP));
// Even though I'm not going to actually be deleting,
// I want to be able to have slightly more control.
// Besides, it is easier to initialize stuff...
#if WANT_HUB_TEST
for (int i = 0; i < MAX_HUBS; i++) {
Hubs[i] = new USBHub(&Usb);
printf_P(PSTR("Available heap: %u Bytes\r\n"), freeHeap());
}
#endif
while (Usb.Init() == -1) {
printf_P(PSTR("No\r\n"));
Notify(PSTR("OSC did not start."), 0x40);
}
// usb VBUS _OFF_
Usb.gpioWr(0x00);
digitalWrite(2, 0);
usbon_time = millis() + 2000;
cli();
TCCR3A = 0;
TCCR3B = 0;
// (0.01/(1/((16 *(10^6)) / 8))) - 1 = 19999
#if GOD_MODE
OCR3A = 10;
#else
OCR3A = 19999;
#endif
TCCR3B |= prescale8;
TIMSK3 |= (1 << OCIE1A);
sei();
HEAPnext_time = millis() + 10000;
}
#if GOD_MODE
volatile uint16_t *foof = reinterpret_cast<uint16_t *>(0x2200);
#endif
void serialEvent() {
// Adjust UsbDEBUGlvl level on-the-fly.
// + to increase, - to decrease, * to display current level.
// . to increase by 16, , to decrease by 16
// e to flick VBUS
// * to report debug level
if (Serial.available()) {
int inByte = Serial.read();
switch (inByte) {
case '+':
if (UsbDEBUGlvl < 0xff) UsbDEBUGlvl++;
reportlvl = true;
break;
case '-':
if (UsbDEBUGlvl > 0x00) UsbDEBUGlvl--;
reportlvl = true;
break;
case '.':
if (UsbDEBUGlvl < 0xf0) UsbDEBUGlvl += 16;
reportlvl = true;
break;
case ',':
if (UsbDEBUGlvl > 0x0f) UsbDEBUGlvl -= 16;
reportlvl = true;
break;
case '*':
reportlvl = true;
break;
case 't':
runtest = true;
break;
case 'e':
change = true;
usbon = false;
break;
#if GOD_MODE
case 'z':
cli();
*foof = 0xffff;
*(foof + 2) = 0x0000;
sei();
break;
#endif
}
}
}
ISR(TIMER3_COMPA_vect) {
#if GOD_MODE
#if !EXT_RAM_HEAP && !EXT_RAM_STACK
// Super cool debug feature to detect stack and heap collisions.
// We can use this in conjuction with the AVR dragon
// to check max depth of the stack and height of heap.
if (*foof >= (uint16_t)(SP)) {
*foof = (uint16_t)(SP);
*(foof + 2) = (uint16_t)__brkval;
}
#endif
#endif
if (millis() >= LEDnext_time) {
LEDnext_time = millis() + 30;
// set the brightness of pin 9:
analogWrite(led, brightness);
// change the brightness for next time through the loop:
brightness = brightness + fadeAmount;
// reverse the direction of the fading at the ends of the fade:
if (brightness <= 0) {
brightness = 0;
fadeAmount = -fadeAmount;
}
if (brightness >= 255) {
brightness = 255;
fadeAmount = -fadeAmount;
}
}
}
bool isfat(uint8_t t) {
return (t == 0x01 || t == 0x04 || t == 0x06 || t == 0x0b || t == 0x0c || t == 0x0e || t == 0x1);
}
void die(FRESULT rc) {
printf_P(PSTR("Failed with rc=%u.\r\n"), rc);
//for (;;);
}
/*make sure this is a power of two. */
#define mbxs 128
void loop() {
uint8_t My_Buff_x[mbxs]; /* File read buffer */
FIL My_File_Object_x; /* File object */
DIR My_Dir_Object_x; /* Directory object */
FILINFO My_File_Info_Object_x; /* File information object */
// Print a heap status report about every 10 seconds.
if (millis() >= HEAPnext_time) {
if (UsbDEBUGlvl > 0x50) {
printf_P(PSTR("Available heap: %u Bytes\r\n"), freeHeap());
#if GOD_MODE
cli();
uint16_t p = *foof;
sei();
printf_P(PSTR("MAXSP %4.4x, current %4.4x\r\n"), p, SP);
#endif
}
HEAPnext_time = millis() + 10000;
}
// Horrid! This sort of thing really belongs in an ISR, not here!
// We also will be needing to test each hub port, we don't do this yet!
if (!change && !usbon && millis() >= usbon_time) {
change = true;
usbon = true;
}
if (change) {
change = false;
if (usbon) {
printf_P(PSTR("VBUS on\r\n"));
Usb.gpioWr(0xFF);
digitalWrite(2, 1);
} else {
Usb.gpioWr(0x00);
digitalWrite(2, 0);
usbon = false;
usbon_time = millis() + 2000;
}
}
Usb.Task();
current_state = Usb.getUsbTaskState();
if (current_state != last_state) {
if (UsbDEBUGlvl > 0x50)
printf_P(PSTR("USB state = %x\r\n"), current_state);
if (current_state == USB_STATE_RUNNING) {
fadeAmount = 30;
/*
partsready = false;
for (int i = 0; i < cpart; i++) {
if (Fats[i] != NULL)
delete Fats[i];
}
fatready = false;
notified = false;
cpart = 0;
*/
}
if (current_state == USB_DETACHED_SUBSTATE_WAIT_FOR_DEVICE) {
fadeAmount = 80;
partsready = false;
for (int i = 0; i < cpart; i++) {
if (Fats[i] != NULL)
delete Fats[i];
Fats[i] = NULL;
}
fatready = false;
notified = false;
cpart = 0;
}
#if 0
if (current_state == 0xa0) {
printf_P(PSTR("VBUS off\r\n"));
// safe to do here
Usb.gpioWr(0x00);
digitalWrite(2, 0);
usbon = false;
usbon_time = millis() + 2000;
change = false;
}
#endif
last_state = current_state;
}
// only do any of this if usb is on
if (usbon) {
if (partsready && !fatready) {
if (cpart > 0) fatready = true;
}
// This is horrible, and needs to be moved elsewhere!
for (int B = 0; B < MAX_DRIVERS; B++) {
if (!partsready && Bulk[B]->GetAddress() != NULL) {
// Build a list.
int ML = Bulk[B]->GetbMaxLUN();
//printf("MAXLUN = %i\r\n", ML);
ML++;
for (int i = 0; i < ML; i++) {
if (Bulk[B]->LUNIsGood(i)) {
partsready = true;
sto[i].private_data = &info[i];
info[i].lun = i;
info[i].B = B;
info[i].volmap = 0; // TO-DO: keep track of > 1
sto[i].Read = *PRead;
sto[i].Write = *PWrite;
sto[i].Reads = *PReads;
sto[i].Writes = *PWrites;
sto[i].Status = *PStatus;
sto[i].TotalSectors = Bulk[B]->GetCapacity(i);
sto[i].SectorSize = Bulk[B]->GetSectorSize(i);
printf_P(PSTR("LUN:\t\t%u\r\n"), i);
printf_P(PSTR("Total Sectors:\t%08lx\t%lu\r\n"), sto[i].TotalSectors, sto[i].TotalSectors);
printf_P(PSTR("Sector Size:\t%04x\t\t%u\r\n"), sto[i].SectorSize, sto[i].SectorSize);
// get the partition data...
PT = new PCPartition;
if (!PT->Init(&sto[i])) {
part_t *apart;
for (int j = 0; j < 4; j++) {
apart = PT->GetPart(j);
if (apart != NULL && apart->type != 0x00) {
memcpy(&(parts[cpart]), apart, sizeof (part_t));
printf_P(PSTR("Partition %u type %#02x\r\n"), j, parts[cpart].type);
// for now
if (isfat(parts[cpart].type)) {
Fats[cpart] = new PFAT;
int r = Fats[cpart]->Init(&sto[i], cpart, parts[cpart].firstSector);
if (r) {
delete Fats[cpart];
Fats[cpart] = NULL;
} else cpart++;
}
}
}
} else {
// try superblock
Fats[cpart] = new PFAT;
int r = Fats[cpart]->Init(&sto[i], cpart, 0);
if (r) {
printf_P(PSTR("Superblock error %x\r\n"), r);
delete Fats[cpart];
Fats[cpart] = NULL;
} else cpart++;
}
delete PT;
} else {
sto[i].Read = NULL;
sto[i].Write = NULL;
sto[i].Writes = NULL;
sto[i].Reads = NULL;
sto[i].TotalSectors = 0UL;
sto[i].SectorSize = 0;
}
}
}
}
if (fatready) {
if (Fats[0] != NULL) {
struct Pvt * p;
p = ((struct Pvt *)(Fats[0]->storage->private_data));
if (!Bulk[p->B]->LUNIsGood(p->lun)) {
// media change
fadeAmount = 80;
partsready = false;
for (int i = 0; i < cpart; i++) {
if (Fats[i] != NULL)
delete Fats[i];
Fats[cpart] = NULL;
}
fatready = false;
notified = false;
cpart = 0;
}
}
}
if (fatready) {
FRESULT rc; /* Result code */
UINT bw, br, i;
ULONG ii, wt, rt, start, end;
if (!notified) {
fadeAmount = 5;
notified = true;
printf_P(PSTR("\r\nOpen an existing file (message.txt).\r\n"));
rc = f_open(&My_File_Object_x, "0:/MESSAGE.TXT", FA_READ);
if (rc) printf_P(PSTR("Error %i, message.txt not found.\r\n"));
else {
printf_P(PSTR("\r\nType the file content.\r\n"));
for (;;) {
rc = f_read(&My_File_Object_x, &(My_Buff_x[0]), mbxs, &br); /* Read a chunk of file */
if (rc || !br) break; /* Error or end of file */
for (i = 0; i < br; i++) {
/* Type the data */
if (My_Buff_x[i] == '\n')
Serial.write('\r');
if (My_Buff_x[i] != '\r')
Serial.write(My_Buff_x[i]);
Serial.flush();
}
}
if (rc) {
f_close(&My_File_Object_x);
goto out;
}
printf_P(PSTR("\r\nClose the file.\r\n"));
rc = f_close(&My_File_Object_x);
if (rc) goto out;
}
printf_P(PSTR("\r\nCreate a new file (hello.txt).\r\n"));
rc = f_open(&My_File_Object_x, "0:/Hello.TxT", FA_WRITE | FA_CREATE_ALWAYS);
if (rc) {
die(rc);
goto outdir;
}
printf_P(PSTR("\r\nWrite a text data. (Hello world!)\r\n"));
rc = f_write(&My_File_Object_x, "Hello world!\r\n", 14, &bw);
if (rc) {
goto out;
}
printf_P(PSTR("%u bytes written.\r\n"), bw);
printf_P(PSTR("\r\nClose the file.\r\n"));
rc = f_close(&My_File_Object_x);
if (rc) {
die(rc);
goto out;
}
outdir:
printf_P(PSTR("\r\nOpen root directory.\r\n"));
rc = f_opendir(&My_Dir_Object_x, "0:/");
if (rc) {
die(rc);
goto out;
}
printf_P(PSTR("\r\nDirectory listing...\r\n"));
printf_P(PSTR("Available heap: %u Bytes\r\n"), freeHeap());
for (;;) {
rc = f_readdir(&My_Dir_Object_x, &My_File_Info_Object_x); /* Read a directory item */
if (rc || !My_File_Info_Object_x.fname[0]) break; /* Error or end of dir */
if (My_File_Info_Object_x.fattrib & AM_DIR) {
Serial.write('d');
} else {
Serial.write('-');
}
Serial.write('r');
if (My_File_Info_Object_x.fattrib & AM_RDO) {
Serial.write('-');
} else {
Serial.write('w');
}
if (My_File_Info_Object_x.fattrib & AM_HID) {
Serial.write('h');
} else {
Serial.write('-');
}
if (My_File_Info_Object_x.fattrib & AM_SYS) {
Serial.write('s');
} else {
Serial.write('-');
}
if (My_File_Info_Object_x.fattrib & AM_ARC) {
Serial.write('a');
} else {
Serial.write('-');
}
#if _USE_LFN
if (*My_File_Info_Object_x.lfname)
printf_P(PSTR(" %8lu %s (%s)\r\n"), My_File_Info_Object_x.fsize, My_File_Info_Object_x.fname, My_File_Info_Object_x.lfname);
else
#endif
printf_P(PSTR(" %8lu %s\r\n"), My_File_Info_Object_x.fsize, &(My_File_Info_Object_x.fname[0]));
}
out:
if (rc) die(rc);
printf_P(PSTR("\r\nTest completed.\r\n"));
}
if (runtest) {
runtest = false;
printf_P(PSTR("\r\nCreate a new 10MB test file (10MB.bin).\r\n"));
for (bw = 0; bw < mbxs; bw++) My_Buff_x[bw] = bw & 0xff;
rc = f_open(&My_File_Object_x, "0:/10MB.bin", FA_WRITE | FA_CREATE_ALWAYS);
if (rc) goto failed;
start = millis();
for (ii = 10485760 / mbxs; ii > 0; ii--) {
rc = f_write(&My_File_Object_x, &My_Buff_x[0], mbxs, &bw);
if (rc || !bw) goto failed;
}
rc = f_close(&My_File_Object_x);
if (rc) goto failed;
end = millis();
wt = end - start;
printf_P(PSTR("Time to write 10485760 bytes: %lu ms (%lu sec) \r\n"), wt, (500 + wt) / 1000UL);
rc = f_open(&My_File_Object_x, "0:/10MB.bin", FA_READ);
start = millis();
if (rc) goto failed;
for (;;) {
rc = f_read(&My_File_Object_x, &My_Buff_x[0], mbxs, &bw); /* Read a chunk of file */
if (rc || !bw) break; /* Error or end of file */
}
end = millis();
if (rc) goto failed;
rc = f_close(&My_File_Object_x);
if (rc) goto failed;
rt = end - start;
printf_P(PSTR("Time to read 10485760 bytes: %lu ms (%lu sec)\r\nDelete test file\r\n"), rt, (500 + rt) / 1000UL);
failed:
rc = f_unlink("0:/10MB.bin");
if (rc) die(rc);
printf_P(PSTR("10MB timing test finished.\r\n"));
}
}
}
}

1
examples/testusbhostFAT/xmem2 Submodule

@ -0,0 +1 @@
Subproject commit b2adf12413e93de01334efeed0e5d46a73eb17ae