377 lines
13 KiB
C
377 lines
13 KiB
C
|
/**
|
||
|
|
* \file
|
||
|
|
*
|
||
|
|
* \brief USB Device Mass Storage Class (MSC) interface definitions.
|
||
|
|
*
|
||
|
|
* Copyright (c) 2009-2016 Atmel Corporation. All rights reserved.
|
||
|
|
*
|
||
|
|
* \asf_license_start
|
||
|
|
*
|
||
|
|
* \page License
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions are met:
|
||
|
|
*
|
||
|
|
* 1. Redistributions of source code must retain the above copyright notice,
|
||
|
|
* this list of conditions and the following disclaimer.
|
||
|
|
*
|
||
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
||
|
|
* this list of conditions and the following disclaimer in the documentation
|
||
|
|
* and/or other materials provided with the distribution.
|
||
|
|
*
|
||
|
|
* 3. The name of Atmel may not be used to endorse or promote products derived
|
||
|
|
* from this software without specific prior written permission.
|
||
|
|
*
|
||
|
|
* 4. This software may only be redistributed and used in connection with an
|
||
|
|
* Atmel microcontroller product.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
|
||
|
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
|
||
|
|
* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
|
||
|
|
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
||
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
*
|
||
|
|
* \asf_license_stop
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
/*
|
||
|
|
* Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _UDI_MSC_H_
|
||
|
|
#define _UDI_MSC_H_
|
||
|
|
|
||
|
|
#include "conf_usb.h"
|
||
|
|
#include "usb_protocol.h"
|
||
|
|
#include "usb_protocol_msc.h"
|
||
|
|
#include "udd.h"
|
||
|
|
#include "udc_desc.h"
|
||
|
|
#include "udi.h"
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \addtogroup udi_msc_group_udc
|
||
|
|
* @{
|
||
|
|
*/
|
||
|
|
//! Global structure which contains standard UDI interface for UDC
|
||
|
|
extern UDC_DESC_STORAGE udi_api_t udi_api_msc;
|
||
|
|
//@}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \ingroup udi_msc_group
|
||
|
|
* \defgroup udi_msc_group USB interface descriptors
|
||
|
|
*
|
||
|
|
* The following structures provide predefined USB interface descriptors.
|
||
|
|
* It must be used to define the final USB descriptors.
|
||
|
|
*/
|
||
|
|
//@{
|
||
|
|
|
||
|
|
//! Interface descriptor structure for MSC
|
||
|
|
typedef struct {
|
||
|
|
usb_iface_desc_t iface;
|
||
|
|
usb_ep_desc_t ep_in;
|
||
|
|
usb_ep_desc_t ep_out;
|
||
|
|
} udi_msc_desc_t;
|
||
|
|
|
||
|
|
//! By default no string associated to this interface
|
||
|
|
#ifndef UDI_MSC_STRING_ID
|
||
|
|
#define UDI_MSC_STRING_ID 0
|
||
|
|
#endif
|
||
|
|
|
||
|
|
//! MSC endpoints size for full speed
|
||
|
|
#define UDI_MSC_EPS_SIZE_FS 64
|
||
|
|
//! MSC endpoints size for high speed
|
||
|
|
#define UDI_MSC_EPS_SIZE_HS 512
|
||
|
|
|
||
|
|
//! Content of MSC interface descriptor for all speeds
|
||
|
|
#define UDI_MSC_DESC \
|
||
|
|
.iface.bLength = sizeof(usb_iface_desc_t),\
|
||
|
|
.iface.bDescriptorType = USB_DT_INTERFACE,\
|
||
|
|
.iface.bInterfaceNumber = UDI_MSC_IFACE_NUMBER,\
|
||
|
|
.iface.bAlternateSetting = 0,\
|
||
|
|
.iface.bNumEndpoints = 2,\
|
||
|
|
.iface.bInterfaceClass = MSC_CLASS,\
|
||
|
|
.iface.bInterfaceSubClass = MSC_SUBCLASS_TRANSPARENT,\
|
||
|
|
.iface.bInterfaceProtocol = MSC_PROTOCOL_BULK,\
|
||
|
|
.iface.iInterface = UDI_MSC_STRING_ID,\
|
||
|
|
.ep_in.bLength = sizeof(usb_ep_desc_t),\
|
||
|
|
.ep_in.bDescriptorType = USB_DT_ENDPOINT,\
|
||
|
|
.ep_in.bEndpointAddress = UDI_MSC_EP_IN,\
|
||
|
|
.ep_in.bmAttributes = USB_EP_TYPE_BULK,\
|
||
|
|
.ep_in.bInterval = 0,\
|
||
|
|
.ep_out.bLength = sizeof(usb_ep_desc_t),\
|
||
|
|
.ep_out.bDescriptorType = USB_DT_ENDPOINT,\
|
||
|
|
.ep_out.bEndpointAddress = UDI_MSC_EP_OUT,\
|
||
|
|
.ep_out.bmAttributes = USB_EP_TYPE_BULK,\
|
||
|
|
.ep_out.bInterval = 0,
|
||
|
|
|
||
|
|
//! Content of MSC interface descriptor for full speed only
|
||
|
|
#define UDI_MSC_DESC_FS {\
|
||
|
|
UDI_MSC_DESC \
|
||
|
|
.ep_in.wMaxPacketSize = LE16(UDI_MSC_EPS_SIZE_FS),\
|
||
|
|
.ep_out.wMaxPacketSize = LE16(UDI_MSC_EPS_SIZE_FS),\
|
||
|
|
}
|
||
|
|
|
||
|
|
//! Content of MSC interface descriptor for high speed only
|
||
|
|
#define UDI_MSC_DESC_HS {\
|
||
|
|
UDI_MSC_DESC \
|
||
|
|
.ep_in.wMaxPacketSize = LE16(UDI_MSC_EPS_SIZE_HS),\
|
||
|
|
.ep_out.wMaxPacketSize = LE16(UDI_MSC_EPS_SIZE_HS),\
|
||
|
|
}
|
||
|
|
//@}
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \ingroup udi_group
|
||
|
|
* \defgroup udi_msc_group USB Device Interface (UDI) for Mass Storage Class (MSC)
|
||
|
|
*
|
||
|
|
* Common APIs used by high level application to use this USB class.
|
||
|
|
*
|
||
|
|
* These routines are used by memory to transfer its data
|
||
|
|
* to/from USB MSC endpoints.
|
||
|
|
*
|
||
|
|
* See \ref udi_msc_quickstart.
|
||
|
|
* @{
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \brief Process the background read/write commands
|
||
|
|
*
|
||
|
|
* Routine called by the main loop
|
||
|
|
*/
|
||
|
|
bool udi_msc_process_trans(void);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \brief Transfers data to/from USB MSC endpoints
|
||
|
|
*
|
||
|
|
*
|
||
|
|
* \param b_read Memory to USB, if true
|
||
|
|
* \param block Buffer on Internal RAM to send or fill
|
||
|
|
* \param block_size Buffer size to send or fill
|
||
|
|
* \param callback Function to call at the end of transfer.
|
||
|
|
* If NULL then the routine exit when transfer is finish.
|
||
|
|
*
|
||
|
|
* \return \c 1 if function was successfully done, otherwise \c 0.
|
||
|
|
*/
|
||
|
|
bool udi_msc_trans_block(bool b_read, uint8_t * block, iram_size_t block_size,
|
||
|
|
void (*callback) (udd_ep_status_t status, iram_size_t n, udd_ep_id_t ep));
|
||
|
|
//@}
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \page udi_msc_quickstart Quick start guide for USB device Mass Storage module (UDI MSC)
|
||
|
|
*
|
||
|
|
* This is the quick start guide for the \ref udi_msc_group
|
||
|
|
* "USB device interface MSC module (UDI MSC)" with step-by-step instructions on
|
||
|
|
* how to configure and use the modules in a selection of use cases.
|
||
|
|
*
|
||
|
|
* The use cases contain several code fragments. The code fragments in the
|
||
|
|
* steps for setup can be copied into a custom initialization function, while
|
||
|
|
* the steps for usage can be copied into, e.g., the main application function.
|
||
|
|
*
|
||
|
|
* \section udi_msc_basic_use_case Basic use case
|
||
|
|
* In this basic use case, the "USB MSC (Single Interface Device)" module is used.
|
||
|
|
* The "USB MSC (Composite Device)" module usage is described in \ref udi_msc_use_cases
|
||
|
|
* "Advanced use cases".
|
||
|
|
*
|
||
|
|
* \section udi_msc_basic_use_case_setup Setup steps
|
||
|
|
* \subsection udi_msc_basic_use_case_setup_prereq Prerequisites
|
||
|
|
* \copydetails udc_basic_use_case_setup_prereq
|
||
|
|
* \subsection udi_msc_basic_use_case_setup_code Example code
|
||
|
|
* \copydetails udc_basic_use_case_setup_code
|
||
|
|
* \subsection udi_msc_basic_use_case_setup_flow Workflow
|
||
|
|
* \copydetails udc_basic_use_case_setup_flow
|
||
|
|
*
|
||
|
|
* \section udi_msc_basic_use_case_usage Usage steps
|
||
|
|
*
|
||
|
|
* \subsection udi_msc_basic_use_case_usage_code Example code
|
||
|
|
* Content of conf_usb.h:
|
||
|
|
* \code
|
||
|
|
#define USB_DEVICE_SERIAL_NAME "12...EF" // Disk SN for MSC
|
||
|
|
#define UDI_MSC_GLOBAL_VENDOR_ID \
|
||
|
|
'A', 'T', 'M', 'E', 'L', ' ', ' ', ' '
|
||
|
|
#define UDI_MSC_GLOBAL_PRODUCT_VERSION \
|
||
|
|
'1', '.', '0', '0'
|
||
|
|
#define UDI_MSC_ENABLE_EXT() my_callback_msc_enable()
|
||
|
|
extern bool my_callback_msc_enable(void);
|
||
|
|
#define UDI_MSC_DISABLE_EXT() my_callback_msc_disable()
|
||
|
|
extern void my_callback_msc_disable(void);
|
||
|
|
#include "udi_msc_conf.h" // At the end of conf_usb.h file
|
||
|
|
\endcode
|
||
|
|
*
|
||
|
|
* Add to application C-file:
|
||
|
|
* \code
|
||
|
|
static bool my_flag_autorize_msc_transfert = false;
|
||
|
|
bool my_callback_msc_enable(void)
|
||
|
|
{
|
||
|
|
my_flag_autorize_msc_transfert = true;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
void my_callback_msc_disable(void)
|
||
|
|
{
|
||
|
|
my_flag_autorize_msc_transfert = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
void task(void)
|
||
|
|
{
|
||
|
|
udi_msc_process_trans();
|
||
|
|
}
|
||
|
|
\endcode
|
||
|
|
*
|
||
|
|
* \subsection udi_msc_basic_use_case_setup_flow Workflow
|
||
|
|
* -# Ensure that conf_usb.h is available and contains the following configuration,
|
||
|
|
* which is the USB device MSC configuration:
|
||
|
|
* - \code #define USB_DEVICE_SERIAL_NAME "12...EF" // Disk SN for MSC \endcode
|
||
|
|
* \note The USB serial number is mandatory when a MSC interface is used.
|
||
|
|
* - \code //! Vendor name and Product version of MSC interface
|
||
|
|
#define UDI_MSC_GLOBAL_VENDOR_ID \
|
||
|
|
'A', 'T', 'M', 'E', 'L', ' ', ' ', ' '
|
||
|
|
#define UDI_MSC_GLOBAL_PRODUCT_VERSION \
|
||
|
|
'1', '.', '0', '0' \endcode
|
||
|
|
* \note The USB MSC interface requires a vendor ID (8 ASCII characters)
|
||
|
|
* and a product version (4 ASCII characters).
|
||
|
|
* - \code #define UDI_MSC_ENABLE_EXT() my_callback_msc_enable()
|
||
|
|
extern bool my_callback_msc_enable(void); \endcode
|
||
|
|
* \note After the device enumeration (detecting and identifying USB devices),
|
||
|
|
* the USB host starts the device configuration. When the USB MSC interface
|
||
|
|
* from the device is accepted by the host, the USB host enables this interface and the
|
||
|
|
* UDI_MSC_ENABLE_EXT() callback function is called and return true.
|
||
|
|
* Thus, when this event is received, the tasks which call
|
||
|
|
* udi_msc_process_trans() must be enabled.
|
||
|
|
* - \code #define UDI_MSC_DISABLE_EXT() my_callback_msc_disable()
|
||
|
|
extern void my_callback_msc_disable(void); \endcode
|
||
|
|
* \note When the USB device is unplugged or is reset by the USB host, the USB
|
||
|
|
* interface is disabled and the UDI_MSC_DISABLE_EXT() callback function
|
||
|
|
* is called. Thus, it is recommended to disable the task which is called udi_msc_process_trans().
|
||
|
|
* -# The MSC is automatically linked with memory control access component
|
||
|
|
* which provides the memories interfaces. However, the memory data transfers
|
||
|
|
* must be done outside USB interrupt routine. This is done in the MSC process
|
||
|
|
* ("udi_msc_process_trans()") called by main loop:
|
||
|
|
* - \code * void task(void) {
|
||
|
|
udi_msc_process_trans();
|
||
|
|
} \endcode
|
||
|
|
* -# The MSC speed depends on task periodicity. To get the best speed
|
||
|
|
* the notification callback "UDI_MSC_NOTIFY_TRANS_EXT" can be used to wakeup
|
||
|
|
* this task (Example, through a mutex):
|
||
|
|
* - \code #define UDI_MSC_NOTIFY_TRANS_EXT() msc_notify_trans()
|
||
|
|
void msc_notify_trans(void) {
|
||
|
|
wakeup_my_task();
|
||
|
|
} \endcode
|
||
|
|
*
|
||
|
|
* \section udi_msc_use_cases Advanced use cases
|
||
|
|
* For more advanced use of the UDI MSC module, see the following use cases:
|
||
|
|
* - \subpage udi_msc_use_case_composite
|
||
|
|
* - \subpage udc_use_case_1
|
||
|
|
* - \subpage udc_use_case_2
|
||
|
|
* - \subpage udc_use_case_3
|
||
|
|
* - \subpage udc_use_case_5
|
||
|
|
* - \subpage udc_use_case_6
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \page udi_msc_use_case_composite MSC in a composite device
|
||
|
|
*
|
||
|
|
* A USB Composite Device is a USB Device which uses more than one USB class.
|
||
|
|
* In this use case, the "USB MSC (Composite Device)" module is used to
|
||
|
|
* create a USB composite device. Thus, this USB module can be associated with
|
||
|
|
* another "Composite Device" module, like "USB HID Mouse (Composite Device)".
|
||
|
|
*
|
||
|
|
* Also, you can refer to application note
|
||
|
|
* <A href="http://www.atmel.com/dyn/resources/prod_documents/doc8445.pdf">
|
||
|
|
* AVR4902 ASF - USB Composite Device</A>.
|
||
|
|
*
|
||
|
|
* \section udi_msc_use_case_composite_setup Setup steps
|
||
|
|
* For the setup code of this use case to work, the
|
||
|
|
* \ref udi_msc_basic_use_case "basic use case" must be followed.
|
||
|
|
*
|
||
|
|
* \section udi_msc_use_case_composite_usage Usage steps
|
||
|
|
*
|
||
|
|
* \subsection udi_msc_use_case_composite_usage_code Example code
|
||
|
|
* Content of conf_usb.h:
|
||
|
|
* \code
|
||
|
|
#define USB_DEVICE_EP_CTRL_SIZE 64
|
||
|
|
#define USB_DEVICE_NB_INTERFACE (X+1)
|
||
|
|
#define USB_DEVICE_MAX_EP (X+2)
|
||
|
|
|
||
|
|
#define UDI_MSC_EP_IN (X | USB_EP_DIR_IN)
|
||
|
|
#define UDI_MSC_EP_OUT (Y | USB_EP_DIR_OUT)
|
||
|
|
#define UDI_MSC_IFACE_NUMBER X
|
||
|
|
|
||
|
|
#define UDI_COMPOSITE_DESC_T \
|
||
|
|
udi_msc_desc_t udi_msc; \
|
||
|
|
...
|
||
|
|
#define UDI_COMPOSITE_DESC_FS \
|
||
|
|
.udi_msc = UDI_MSC_DESC, \
|
||
|
|
...
|
||
|
|
#define UDI_COMPOSITE_DESC_HS \
|
||
|
|
.udi_msc = UDI_MSC_DESC, \
|
||
|
|
...
|
||
|
|
#define UDI_COMPOSITE_API \
|
||
|
|
&udi_api_msc, \
|
||
|
|
...
|
||
|
|
\endcode
|
||
|
|
*
|
||
|
|
* \subsection udi_msc_use_case_composite_usage_flow Workflow
|
||
|
|
* -# Ensure that conf_usb.h is available and contains the following parameters
|
||
|
|
* required for a USB composite device configuration:
|
||
|
|
* - \code // Endpoint control size, This must be:
|
||
|
|
// - 8, 16, 32 or 64 for full speed device (8 is recommended to save RAM)
|
||
|
|
// - 64 for a high speed device
|
||
|
|
#define USB_DEVICE_EP_CTRL_SIZE 64
|
||
|
|
// Total Number of interfaces on this USB device.
|
||
|
|
// Add 1 for MSC.
|
||
|
|
#define USB_DEVICE_NB_INTERFACE (X+1)
|
||
|
|
// Total number of endpoints on this USB device.
|
||
|
|
// This must include each endpoint for each interface.
|
||
|
|
// Add 2 for MSC.
|
||
|
|
#define USB_DEVICE_MAX_EP (X+2) \endcode
|
||
|
|
* -# Ensure that conf_usb.h contains the description of
|
||
|
|
* composite device:
|
||
|
|
* - \code // The endpoint numbers chosen by you for the MSC.
|
||
|
|
// The endpoint numbers starting from 1.
|
||
|
|
#define UDI_MSC_EP_IN (X | USB_EP_DIR_IN)
|
||
|
|
#define UDI_MSC_EP_OUT (Y | USB_EP_DIR_OUT)
|
||
|
|
// The interface index of an interface starting from 0
|
||
|
|
#define UDI_MSC_IFACE_NUMBER X \endcode
|
||
|
|
* -# Ensure that conf_usb.h contains the following parameters
|
||
|
|
* required for a USB composite device configuration:
|
||
|
|
* - \code // USB Interfaces descriptor structure
|
||
|
|
#define UDI_COMPOSITE_DESC_T \
|
||
|
|
...
|
||
|
|
udi_msc_desc_t udi_msc; \
|
||
|
|
...
|
||
|
|
// USB Interfaces descriptor value for Full Speed
|
||
|
|
#define UDI_COMPOSITE_DESC_FS \
|
||
|
|
...
|
||
|
|
.udi_msc = UDI_MSC_DESC_FS, \
|
||
|
|
...
|
||
|
|
// USB Interfaces descriptor value for High Speed
|
||
|
|
#define UDI_COMPOSITE_DESC_HS \
|
||
|
|
...
|
||
|
|
.udi_msc = UDI_MSC_DESC_HS, \
|
||
|
|
...
|
||
|
|
// USB Interface APIs
|
||
|
|
#define UDI_COMPOSITE_API \
|
||
|
|
...
|
||
|
|
&udi_api_msc, \
|
||
|
|
... \endcode
|
||
|
|
* - \note The descriptors order given in the four lists above must be the
|
||
|
|
* same as the order defined by all interface indexes. The interface index
|
||
|
|
* orders are defined through UDI_X_IFACE_NUMBER defines.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#endif // _UDI_MSC_H_
|