/* ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010, 2011 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 . */ #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); } }