/* ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010, 2011,2012,2013 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 "usb_msd_cfg.h" #include "usb_msd.h" /* * USB Device Descriptor. */ static const uint8_t msd_device_descriptor_data[18] = { USB_DESC_DEVICE (0x0200, /* bcdUSB (2.0). */ 0x00, /* bDeviceClass (None). */ 0x00, /* bDeviceSubClass. */ 0x00, /* bDeviceProtocol. */ 0x40, /* Control Endpoint Size. */ 0x0483, /* idVendor (ST). */ 0x5742, /* idProduct. */ 0x0100, /* bcdDevice. */ 1, /* iManufacturer. */ 2, /* iProduct. */ 3, /* iSerialNumber. */ 1) /* bNumConfigurations. */ }; /* * Device Descriptor wrapper. */ static const USBDescriptor msd_device_descriptor = { sizeof msd_device_descriptor_data, msd_device_descriptor_data }; /* Configuration Descriptor tree*/ static const uint8_t msd_configuration_descriptor_data[] = { /* Configuration Descriptor.*/ USB_DESC_CONFIGURATION(0x0020, /* wTotalLength. */ 0x01, /* bNumInterfaces. */ 0x01, /* bConfigurationValue. */ 0, /* iConfiguration. */ 0xC0, /* bmAttributes (self powered). */ 0x32), /* bMaxPower (100mA). */ /* Interface Descriptor.*/ USB_DESC_INTERFACE (USB_MSD_INTERFACE_NUMBER, /* bInterfaceNumber. */ 0x00, /* bAlternateSetting. */ 0x02, /* bNumEndpoints. */ 0x08, /* bInterfaceClass (Mass Storage) */ 0x06, /* bInterfaceSubClass (SCSI Transparent storage class) */ 0x50, /* bInterfaceProtocol (Bulk Only) */ 0), /* iInterface. (none) */ /* Mass Storage Data In Endpoint Descriptor.*/ USB_DESC_ENDPOINT (USB_MS_DATA_EP|0x80, 0x02, /* bmAttributes (Bulk). */ USB_MS_EP_SIZE,/* wMaxPacketSize. */ 0x05), /* bInterval. 1ms */ /* Mass Storage Data In Endpoint Descriptor.*/ USB_DESC_ENDPOINT (USB_MS_DATA_EP, 0x02, /* bmAttributes (Bulk). */ USB_MS_EP_SIZE,/* wMaxPacketSize. */ 0x05) /* bInterval. 1ms */ }; /* * Configuration Descriptor wrapper. */ static const USBDescriptor msd_configuration_descriptor = { sizeof msd_configuration_descriptor_data, msd_configuration_descriptor_data }; /* * U.S. English language identifier. */ static const uint8_t msd_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 msd_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 msd_string2[] = { USB_DESC_BYTE(62), /* 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, ' ', 0, 'D', 0, 'e', 0, 'v', 0, 'i', 0, 'c', 0, 'e', 0 }; static const uint8_t msd_string3[] = { USB_DESC_BYTE(26), /* bLength. */ USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */ 'A', 0, 'E', 0, 'C', 0, 'C', 0, 'E', 0, 'C', 0, 'C', 0, 'C', 0, 'C', 0, '0' + CH_KERNEL_MAJOR, 0, '0' + CH_KERNEL_MINOR, 0, '0' + CH_KERNEL_PATCH, 0 }; /* * Strings wrappers array. */ static const USBDescriptor msd_strings[] = { {sizeof msd_string0, msd_string0}, {sizeof msd_string1, msd_string1}, {sizeof msd_string2, msd_string2}, {sizeof msd_string3, msd_string3} }; /* * 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 &msd_device_descriptor; case USB_DESCRIPTOR_CONFIGURATION: return &msd_configuration_descriptor; case USB_DESCRIPTOR_STRING: if (dindex < 4) return &msd_strings[dindex]; } return NULL; } /** * @brief IN EP1 state. */ static USBInEndpointState ep1InState; static USBOutEndpointState ep1OutState; /** * @brief EP1 initialization structure (IN only). */ static const USBEndpointConfig epDataConfig = { USB_EP_MODE_TYPE_BULK, NULL, msdBulkInCallbackComplete, msdBulkOutCallbackComplete, USB_MS_EP_SIZE, USB_MS_EP_SIZE, &ep1InState, &ep1OutState, 1, NULL }; /* * Handles the USB driver global events. */ static void usb_event(USBDriver *usbp, usbevent_t event) { USBMassStorageDriver *msdp = (USBMassStorageDriver *)usbp->in_params[USB_MS_DATA_EP - 1]; switch (event) { case USB_EVENT_RESET: msdp->reconfigured_or_reset_event = TRUE; return; case USB_EVENT_ADDRESS: return; case USB_EVENT_CONFIGURED: chSysLockFromIsr(); msdp->reconfigured_or_reset_event = TRUE; usbInitEndpointI(usbp, msdp->ms_ep_number, &epDataConfig); /* Kick-start the thread */ chBSemSignalI(&msdp->bsem); /* signal that the device is connected */ chEvtBroadcastI(&msdp->evt_connected); chSysUnlockFromIsr(); return; case USB_EVENT_SUSPEND: return; case USB_EVENT_WAKEUP: return; case USB_EVENT_STALLED: return; } return; } const USBConfig msd_usb_config = { usb_event, get_descriptor, msdRequestsHook, NULL };