113 lines
3.3 KiB
C
113 lines
3.3 KiB
C
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#ifndef _LIBMAPLE_USB_MASS_H_
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#define _LIBMAPLE_USB_MASS_H_
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#include <libmaple/libmaple_types.h>
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#include <libmaple/gpio.h>
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#include <libmaple/usb.h>
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#include <inttypes.h>
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#include "usb_generic.h"
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#include "usb_mass_mal.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define N_STRING_DESCRIPTORS 4
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#define MAX_PACKET_SIZE 0x40 /* 64B, maximum for USB FS Devices */
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#define MAX_BULK_PACKET_SIZE 0x40 /* 64B, max bulk Can't use 512 because the internal buffers for USB is only 512B */
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/* MASS Storage Requests */
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#define REQUEST_GET_MAX_LUN 0xFE
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#define REQUEST_MASS_STORAGE_RESET 0xFF
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/* USB device state */
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typedef enum _DEVICE_STATE {
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DEVICE_STATE_UNCONNECTED,
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DEVICE_STATE_ATTACHED,
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DEVICE_STATE_POWERED,
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DEVICE_STATE_SUSPENDED,
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DEVICE_STATE_ADDRESSED,
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DEVICE_STATE_CONFIGURED
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} DEVICE_STATE;
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#define BOT_DIR_IN 0
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#define BOT_DIR_OUT 1
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#define BOT_DIR_BOTH 2
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/*****************************************************************************/
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/*********************** Bulk-Only Transfer State machine ********************/
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/*****************************************************************************/
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#define BOT_STATE_IDLE 0 /* Idle state */
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#define BOT_STATE_DATA_OUT 1 /* Data Out state */
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#define BOT_STATE_DATA_IN 2 /* Data In state */
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#define BOT_STATE_DATA_IN_LAST 3 /* Last Data In Last */
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#define BOT_STATE_CSW_Send 4 /* Command Status Wrapper */
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#define BOT_STATE_ERROR 5 /* error state */
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#define BOT_CBW_SIGNATURE 0x43425355
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#define BOT_CSW_SIGNATURE 0x53425355
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#define BOT_CBW_PACKET_LENGTH 31
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#define BOT_CSW_DATA_LENGTH 0x000D
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/* CSW Status Definitions */
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#define BOT_CSW_CMD_PASSED 0x00
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#define BOT_CSW_CMD_FAILED 0x01
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#define BOT_CSW_PHASE_ERROR 0x02
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#define BOT_SEND_CSW_DISABLE 0
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#define BOT_SEND_CSW_ENABLE 1
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#define USB_EP1_IN 0x81
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/* Bulk-only Command Block Wrapper */
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typedef struct _BulkOnlyCBW {
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uint32_t dSignature;
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uint32_t dTag;
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uint32_t dDataLength;
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uint8_t bmFlags;
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uint8_t bLUN;
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uint8_t bCBLength;
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uint8_t CB[16];
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} BulkOnlyCBW;
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/* Bulk-only Command Status Wrapper */
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typedef struct _BulkOnlyCSW {
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uint32_t dSignature;
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uint32_t dTag;
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uint32_t dDataResidue;
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uint8_t bStatus;
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} BulkOnlyCSW;
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typedef struct _usb_descriptor_config {
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usb_descriptor_config_header Config_Header;
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usb_descriptor_interface MASS_Interface;
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usb_descriptor_endpoint DataInEndpoint;
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usb_descriptor_endpoint DataOutEndpoint;
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} __packed usb_descriptor_config;
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void usb_mass_enable(gpio_dev *disc_dev, uint8 disc_bit);
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void usb_mass_disable(gpio_dev *disc_dev, uint8 disc_bit);
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void usb_mass_loop();
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void usb_mass_bot_set_csw(uint8_t cswStatus, uint8_t sendPermission);
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void usb_mass_transfer_data_request(uint8_t* dataPointer, uint16_t dataLen);
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void usb_mass_bot_abort(uint8_t direction);
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extern USBCompositePart usbMassPart;
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extern uint8_t usb_mass_botState;
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extern BulkOnlyCBW usb_mass_CBW;
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extern BulkOnlyCSW usb_mass_CSW;
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extern uint8_t usb_mass_bulkDataBuff[MAX_BULK_PACKET_SIZE];
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extern uint16_t usb_mass_dataLength;
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#ifdef __cplusplus
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}
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#endif
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#endif
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