diff options
Diffstat (limited to 'arch/arm/include/asm/arch-rockchip/f_rockusb.h')
| -rw-r--r-- | arch/arm/include/asm/arch-rockchip/f_rockusb.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-rockchip/f_rockusb.h b/arch/arm/include/asm/arch-rockchip/f_rockusb.h new file mode 100644 index 0000000..9772321 --- /dev/null +++ b/arch/arm/include/asm/arch-rockchip/f_rockusb.h @@ -0,0 +1,136 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * (C) Copyright 2017 + * + * Eddie Cai <eddie.cai.linux@gmail.com> + */ + +#ifndef _F_ROCKUSB_H_ +#define _F_ROCKUSB_H_ +#include <blk.h> + +#define ROCKUSB_VERSION "0.1" + +#define ROCKUSB_INTERFACE_CLASS 0xff +#define ROCKUSB_INTERFACE_SUB_CLASS 0x06 +#define ROCKUSB_INTERFACE_PROTOCOL 0x05 + +#define RX_ENDPOINT_MAXIMUM_PACKET_SIZE_2_0 0x0200 +#define RX_ENDPOINT_MAXIMUM_PACKET_SIZE_1_1 0x0040 +#define TX_ENDPOINT_MAXIMUM_PACKET_SIZE 0x0040 + +#define EP_BUFFER_SIZE 4096 +/* + * EP_BUFFER_SIZE must always be an integral multiple of maxpacket size + * (64 or 512 or 1024), else we break on certain controllers like DWC3 + * that expect bulk OUT requests to be divisible by maxpacket size. + */ + +#define RKUSB_BUF_SIZE EP_BUFFER_SIZE * 2 +#define RKBLOCK_BUF_SIZE 4096 + +#define RKUSB_STATUS_IDLE 0 +#define RKUSB_STATUS_CMD 1 +#define RKUSB_STATUS_RXDATA 2 +#define RKUSB_STATUS_TXDATA 3 +#define RKUSB_STATUS_CSW 4 +#define RKUSB_STATUS_RXDATA_PREPARE 5 +#define RKUSB_STATUS_TXDATA_PREPARE 6 + +enum rkusb_command { +K_FW_TEST_UNIT_READY = 0x00, +K_FW_READ_FLASH_ID = 0x01, +K_FW_SET_DEVICE_ID = 0x02, +K_FW_TEST_BAD_BLOCK = 0x03, +K_FW_READ_10 = 0x04, +K_FW_WRITE_10 = 0x05, +K_FW_ERASE_10 = 0x06, +K_FW_WRITE_SPARE = 0x07, +K_FW_READ_SPARE = 0x08, + +K_FW_ERASE_10_FORCE = 0x0b, +K_FW_GET_VERSION = 0x0c, + +K_FW_LBA_READ_10 = 0x14, +K_FW_LBA_WRITE_10 = 0x15, +K_FW_ERASE_SYS_DISK = 0x16, +K_FW_SDRAM_READ_10 = 0x17, +K_FW_SDRAM_WRITE_10 = 0x18, +K_FW_SDRAM_EXECUTE = 0x19, +K_FW_READ_FLASH_INFO = 0x1A, +K_FW_GET_CHIP_VER = 0x1B, +K_FW_LOW_FORMAT = 0x1C, +K_FW_SET_RESET_FLAG = 0x1E, +K_FW_SPI_READ_10 = 0x21, +K_FW_SPI_WRITE_10 = 0x22, +K_FW_LBA_ERASE_10 = 0x25, + +K_FW_SESSION = 0X30, +K_FW_RESET = 0xff, +}; + +#define CBW_DIRECTION_OUT 0x00 +#define CBW_DIRECTION_IN 0x80 + +struct cmd_dispatch_info { + enum rkusb_command cmd; + /* call back function to handle rockusb command */ + void (*cb)(struct usb_ep *ep, struct usb_request *req); +}; + +/* Bulk-only data structures */ + +/* Command Block Wrapper */ +struct fsg_bulk_cb_wrap { + __le32 signature; /* Contains 'USBC' */ + u32 tag; /* Unique per command id */ + __le32 data_transfer_length; /* Size of the data */ + u8 flags; /* Direction in bit 7 */ + u8 lun; /* lun (normally 0) */ + u8 length; /* Of the CDB, <= MAX_COMMAND_SIZE */ + u8 CDB[16]; /* Command Data Block */ +}; + +#define USB_BULK_CB_WRAP_LEN 31 +#define USB_BULK_CB_SIG 0x43425355 /* Spells out USBC */ +#define USB_BULK_IN_FLAG 0x80 + +/* Command status Wrapper */ +struct bulk_cs_wrap { + __le32 signature; /* Should = 'USBS' */ + u32 tag; /* Same as original command */ + __le32 residue; /* Amount not transferred */ + u8 status; /* See below */ +}; + +#define USB_BULK_CS_WRAP_LEN 13 +#define USB_BULK_CS_SIG 0x53425355 /* Spells out 'USBS' */ +#define USB_STATUS_PASS 0 +#define USB_STATUS_FAIL 1 +#define USB_STATUS_PHASE_ERROR 2 + +#define CSW_GOOD 0x00 +#define CSW_FAIL 0x01 + +struct f_rockusb { + struct usb_function usb_function; + struct usb_ep *in_ep, *out_ep; + struct usb_request *in_req, *out_req; + char *dev_type; + unsigned int dev_index; + unsigned int tag; + unsigned int lba; + unsigned int dl_size; + unsigned int dl_bytes; + unsigned int ul_size; + unsigned int ul_bytes; + struct blk_desc *desc; + int reboot_flag; + void *buf; + void *buf_head; +}; + +/* init rockusb device, tell rockusb which device you want to read/write*/ +void rockusb_dev_init(char *dev_type, int dev_index); +#endif /* _F_ROCKUSB_H_ */ + |