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/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "ch.h"
#include "hal.h"
#include "test.h"
#include "usb_msc.h"
/*===========================================================================*/
/* USB related stuff. */
/*===========================================================================*/
/*
* USB Device Descriptor.
*/
static const uint8_t msc_device_descriptor_data[18] = {
USB_DESC_DEVICE (0x0110, /* bcdUSB (1.1). */
0x00, /* bDeviceClass (in interface). */
0x00, /* bDeviceSubClass. */
0x00, /* bDeviceProtocol. */
0x40, /* bMaxPacketSize. */
0x0483, /* idVendor (ST). */
0x2004, /* idProduct. */
0x0200, /* bcdDevice. */
1, /* iManufacturer. */
2, /* iProduct. */
3, /* iSerialNumber. */
1) /* bNumConfigurations. */
};
/*
* Device Descriptor wrapper.
*/
static const USBDescriptor msc_device_descriptor = {
sizeof msc_device_descriptor_data,
msc_device_descriptor_data
};
/* Configuration Descriptor tree for a CDC.*/
static const uint8_t msc_configuration_descriptor_data[32] = {
/* Configuration Descriptor.*/
USB_DESC_CONFIGURATION(32, /* wTotalLength. */
0x01, /* bNumInterfaces. */
0x01, /* bConfigurationValue. */
0, /* iConfiguration. */
0xC0, /* bmAttributes (self powered). */
50), /* bMaxPower (100mA). */
/* Interface Descriptor.*/
USB_DESC_INTERFACE (0x00, /* bInterfaceNumber. */
0x00, /* bAlternateSetting. */
0x02, /* bNumEndpoints. */
0x08, /* bInterfaceClass (Mass Stprage). */
0x06, /* bInterfaceSubClass (SCSI
transparent command set, MSCO
chapter 2). */
0x50, /* bInterfaceProtocol (Bulk-Only
Mass Storage, MSCO chapter 3). */
4), /* iInterface. */
/* Endpoint 1 Descriptor.*/
USB_DESC_ENDPOINT (MSC_DATA_IN_EP|0x80, /* bEndpointAddress. */
0x02, /* bmAttributes (Bulk). */
0x0040, /* wMaxPacketSize. */
0x00), /* bInterval (ignored for bulk). */
/* Endpoint 2 Descriptor.*/
USB_DESC_ENDPOINT (MSC_DATA_OUT_EP, /* bEndpointAddress. */
0x02, /* bmAttributes (Bulk). */
0x0040, /* wMaxPacketSize. */
0x00), /* bInterval (ignored for bulk). */
};
/*
* Configuration Descriptor wrapper.
*/
static const USBDescriptor msc_configuration_descriptor = {
sizeof msc_configuration_descriptor_data,
msc_configuration_descriptor_data
};
/*
* U.S. English language identifier.
*/
static const uint8_t msc_string0[] = {
USB_DESC_BYTE(4), /* bLength. */
USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
USB_DESC_WORD(0x0409) /* wLANGID (U.S. English). */
};
/*
* Vendor string.
*/
static const uint8_t msc_string1[] = {
USB_DESC_BYTE(38), /* bLength. */
USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
'S', 0, 'T', 0, 'M', 0, 'i', 0, 'c', 0, 'r', 0, 'o', 0, 'e', 0,
'l', 0, 'e', 0, 'c', 0, 't', 0, 'r', 0, 'o', 0, 'n', 0, 'i', 0,
'c', 0, 's', 0
};
/*
* Device Description string.
*/
static const uint8_t msc_string2[] = {
USB_DESC_BYTE(50), /* bLength. */
USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
'C', 0, 'h', 0, 'i', 0, 'b', 0, 'i', 0, 'O', 0, 'S', 0, '/', 0,
'R', 0, 'T', 0, ' ', 0, 'M', 0, 'a', 0, 's', 0, 's', 0, ' ', 0,
'S', 0, 't', 0, 'o', 0, 'r', 0, 'a', 0, 'g', 0, 'e', 0
};
/*
* Serial Number string.
*/
static const uint8_t msc_string3[] = {
USB_DESC_BYTE(8), /* bLength. */
USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
'0' + CH_KERNEL_MAJOR, 0,
'0' + CH_KERNEL_MINOR, 0,
'0' + CH_KERNEL_PATCH, 0
};
/*
* Interface string.
*/
static const uint8_t msc_string4[] = {
16, /* bLength. */
USB_DESCRIPTOR_STRING, /* bDescriptorType. */
'S', 0, 'T', 0, ' ', 0, 'M', 0, 'a', 0, 's', 0, 's', 0
};
/*
* Strings wrappers array.
*/
static const USBDescriptor msc_strings[] = {
{sizeof msc_string0, msc_string0},
{sizeof msc_string1, msc_string1},
{sizeof msc_string2, msc_string2},
{sizeof msc_string3, msc_string3},
{sizeof msc_string4, msc_string4}
};
/*
* Handles the GET_DESCRIPTOR callback. All required descriptors must be
* handled here.
*/
static const USBDescriptor *get_descriptor(USBDriver *usbp,
uint8_t dtype,
uint8_t dindex,
uint16_t lang) {
(void)usbp;
(void)lang;
switch (dtype) {
case USB_DESCRIPTOR_DEVICE:
return &msc_device_descriptor;
case USB_DESCRIPTOR_CONFIGURATION:
return &msc_configuration_descriptor;
case USB_DESCRIPTOR_STRING:
if (dindex < 5)
return &msc_strings[dindex];
}
return NULL;
}
/*
* IN EP1 state.
*/
USBInEndpointState ep1state;
/*
* OUT EP2 state.
*/
USBOutEndpointState ep2state;
/*
* EP1 initialization structure (IN only).
*/
static const USBEndpointConfig ep1config = {
USB_EP_MODE_TYPE_BULK | USB_EP_MODE_TRANSACTION,
mscDataTransmitted,
NULL,
0x0040,
0x0000,
&ep1state,
NULL
};
/*
* EP2 initialization structure (OUT only).
*/
static const USBEndpointConfig ep2config = {
USB_EP_MODE_TYPE_BULK | USB_EP_MODE_TRANSACTION,
NULL,
mscDataReceived,
0x0000,
0x0040,
NULL,
&ep2state
};
/*
* Handles the USB driver global events.
*/
static void usb_event(USBDriver *usbp, usbevent_t event) {
switch (event) {
case USB_EVENT_RESET:
return;
case USB_EVENT_ADDRESS:
return;
case USB_EVENT_CONFIGURED:
/* Enables the endpoints specified into the configuration.
Note, this callback is invoked from an ISR so I-Class functions
must be used.*/
chSysLockFromIsr();
usbInitEndpointI(usbp, MSC_DATA_IN_EP, &ep1config);
usbInitEndpointI(usbp, MSC_DATA_OUT_EP, &ep2config);
chSysUnlockFromIsr();
return;
case USB_EVENT_SUSPEND:
return;
case USB_EVENT_WAKEUP:
return;
case USB_EVENT_STALLED:
return;
}
return;
}
/*
* Serial over USB driver configuration.
*/
static const USBConfig usbcfg = {
usb_event,
get_descriptor,
mscRequestsHook,
NULL
};
/*===========================================================================*/
/* Generic code. */
/*===========================================================================*/
/*
* Red LED blinker thread, times are in milliseconds.
*/
static WORKING_AREA(waThread1, 128);
static msg_t Thread1(void *arg) {
(void)arg;
while (TRUE) {
palClearPad(IOPORT3, GPIOC_LED);
chThdSleepMilliseconds(500);
palSetPad(IOPORT3, GPIOC_LED);
chThdSleepMilliseconds(500);
}
}
/*
* Application entry point.
*/
int main(void) {
/*
* System initializations.
* - HAL initialization, this also initializes the configured device drivers
* and performs the board-specific initializations.
* - Kernel initialization, the main() function becomes a thread and the
* RTOS is active.
*/
halInit();
chSysInit();
/*
* Activates the USB driver and then the USB bus pull-up on D+.
*/
usbStart(&USBD1, &usbcfg);
palClearPad(GPIOC, GPIOC_USB_DISC);
/*
* Activates the serial driver 2 using the driver default configuration.
*/
sdStart(&SD2, NULL);
/*
* Creates the blinker thread.
*/
chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
/*
* Normal main() thread activity, in this demo it does nothing except
* sleeping in a loop and check the button state.
*/
while (TRUE) {
if (palReadPad(IOPORT1, GPIOA_BUTTON))
TestThread(&SD2);
chThdSleepMilliseconds(1000);
}
}
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