232 lines
7.7 KiB
C
232 lines
7.7 KiB
C
/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
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2011,2012,2013 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/RT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "ch.h"
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#include "hal.h"
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#include "usb_msd_cfg.h"
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#include "usb_msd.h"
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/*
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* USB Device Descriptor.
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*/
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static const uint8_t msd_device_descriptor_data[18] = {
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USB_DESC_DEVICE (0x0200, /* bcdUSB (2.0). */
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0x00, /* bDeviceClass (None). */
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0x00, /* bDeviceSubClass. */
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0x00, /* bDeviceProtocol. */
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0x40, /* Control Endpoint Size. */
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0x0483, /* idVendor (ST). */
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0x5742, /* idProduct. */
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0x0100, /* bcdDevice. */
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1, /* iManufacturer. */
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2, /* iProduct. */
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3, /* iSerialNumber. */
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1) /* bNumConfigurations. */
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};
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/*
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* Device Descriptor wrapper.
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*/
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static const USBDescriptor msd_device_descriptor = {
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sizeof msd_device_descriptor_data,
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msd_device_descriptor_data
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};
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/* Configuration Descriptor tree*/
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static const uint8_t msd_configuration_descriptor_data[] = {
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/* Configuration Descriptor.*/
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USB_DESC_CONFIGURATION(0x0020, /* wTotalLength. */
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0x01, /* bNumInterfaces. */
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0x01, /* bConfigurationValue. */
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0, /* iConfiguration. */
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0xC0, /* bmAttributes (self powered). */
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0x32), /* bMaxPower (100mA). */
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/* Interface Descriptor.*/
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USB_DESC_INTERFACE (USB_MSD_INTERFACE_NUMBER, /* bInterfaceNumber. */
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0x00, /* bAlternateSetting. */
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0x02, /* bNumEndpoints. */
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0x08, /* bInterfaceClass (Mass Storage) */
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0x06, /* bInterfaceSubClass (SCSI
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Transparent storage class) */
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0x50, /* bInterfaceProtocol (Bulk Only) */
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0), /* iInterface. (none) */
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/* Mass Storage Data In Endpoint Descriptor.*/
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USB_DESC_ENDPOINT (USB_MS_DATA_EP|0x80,
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0x02, /* bmAttributes (Bulk). */
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USB_MS_EP_SIZE,/* wMaxPacketSize. */
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0x05), /* bInterval. 1ms */
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/* Mass Storage Data In Endpoint Descriptor.*/
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USB_DESC_ENDPOINT (USB_MS_DATA_EP,
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0x02, /* bmAttributes (Bulk). */
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USB_MS_EP_SIZE,/* wMaxPacketSize. */
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0x05) /* bInterval. 1ms */
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};
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/*
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* Configuration Descriptor wrapper.
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*/
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static const USBDescriptor msd_configuration_descriptor = {
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sizeof msd_configuration_descriptor_data,
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msd_configuration_descriptor_data
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};
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/*
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* U.S. English language identifier.
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*/
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static const uint8_t msd_string0[] = {
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USB_DESC_BYTE(4), /* bLength. */
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USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
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USB_DESC_WORD(0x0409) /* wLANGID (U.S. English). */
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};
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/*
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* Vendor string.
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*/
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static const uint8_t msd_string1[] = {
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USB_DESC_BYTE(38), /* bLength. */
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USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
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'S', 0, 'T', 0, 'M', 0, 'i', 0, 'c', 0, 'r', 0, 'o', 0, 'e', 0,
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'l', 0, 'e', 0, 'c', 0, 't', 0, 'r', 0, 'o', 0, 'n', 0, 'i', 0,
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'c', 0, 's', 0
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};
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/*
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* Device Description string.
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*/
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static const uint8_t msd_string2[] = {
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USB_DESC_BYTE(58), /* bLength. */
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USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
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'r', 0, 'u', 0, 's', 0, 'E', 0, 'f', 0, 'i', 0,
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' ', 0, 'M', 0, 'a', 0, 's', 0, 's', 0, ' ', 0,
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'S', 0, 't', 0, 'o', 0, 'r', 0, 'a', 0, 'g', 0, 'e', 0, ' ', 0,
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'D', 0, 'e', 0, 'v', 0, 'i', 0, 'c', 0, 'e', 0
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};
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static const uint8_t msd_string3[] = {
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USB_DESC_BYTE(26), /* bLength. */
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USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
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'A', 0, 'E', 0, 'C', 0, 'C', 0, 'E', 0, 'C', 0, 'C', 0, 'C', 0, 'C', 0,
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'0' + CH_KERNEL_MAJOR, 0,
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'0' + CH_KERNEL_MINOR, 0,
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'0' + CH_KERNEL_PATCH, 0
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};
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/*
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* Strings wrappers array.
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*/
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static const USBDescriptor msd_strings[] = {
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{sizeof msd_string0, msd_string0},
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{sizeof msd_string1, msd_string1},
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{sizeof msd_string2, msd_string2},
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{sizeof msd_string3, msd_string3}
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};
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/*
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* Handles the GET_DESCRIPTOR callback. All required descriptors must be
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* handled here.
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*/
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static const USBDescriptor *get_descriptor(USBDriver *usbp,
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uint8_t dtype,
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uint8_t dindex,
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uint16_t lang) {
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(void)usbp;
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(void)lang;
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switch (dtype) {
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case USB_DESCRIPTOR_DEVICE:
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return &msd_device_descriptor;
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case USB_DESCRIPTOR_CONFIGURATION:
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return &msd_configuration_descriptor;
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case USB_DESCRIPTOR_STRING:
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if (dindex < 4)
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return &msd_strings[dindex];
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}
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return NULL;
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}
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/**
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* @brief IN EP1 state.
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*/
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static USBInEndpointState ep1InState;
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static USBOutEndpointState ep1OutState;
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/**
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* @brief EP1 initialization structure (IN only).
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*/
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static const USBEndpointConfig epDataConfig = {
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USB_EP_MODE_TYPE_BULK,
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NULL,
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msdBulkInCallbackComplete,
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msdBulkOutCallbackComplete,
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USB_MS_EP_SIZE,
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USB_MS_EP_SIZE,
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&ep1InState,
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&ep1OutState,
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1,
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NULL
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};
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/*
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* Handles the USB driver global events.
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*/
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static void usb_event(USBDriver *usbp, usbevent_t event) {
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USBMassStorageDriver *msdp = (USBMassStorageDriver *)usbp->in_params[USB_MS_DATA_EP - 1];
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switch (event) {
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case USB_EVENT_RESET:
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msdp->reconfigured_or_reset_event = TRUE;
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return;
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case USB_EVENT_ADDRESS:
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return;
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case USB_EVENT_CONFIGURED:
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chSysLockFromIsr();
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msdp->reconfigured_or_reset_event = TRUE;
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usbInitEndpointI(usbp, msdp->ms_ep_number, &epDataConfig);
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/* Kick-start the thread */
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chBSemSignalI(&msdp->bsem);
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/* signal that the device is connected */
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chEvtBroadcastI(&msdp->evt_connected);
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chSysUnlockFromIsr();
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return;
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case USB_EVENT_SUSPEND:
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return;
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case USB_EVENT_WAKEUP:
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return;
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case USB_EVENT_STALLED:
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return;
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}
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return;
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}
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const USBConfig msd_usb_config = {
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usb_event,
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get_descriptor,
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msdRequestsHook,
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NULL
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};
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