summaryrefslogtreecommitdiff
path: root/arch/arm/include
diff options
context:
space:
mode:
authorEddie Cai <eddie.cai.linux@gmail.com>2017-12-15 08:17:10 +0800
committerMarek Vasut <marex@denx.de>2018-01-10 11:11:05 +0100
commitbf2b72bef14b0ad47337e1636434aefc7ebb67f8 (patch)
treed4966b9c55d6ff3d9fd13545f043da62fa1d9369 /arch/arm/include
parentf4f9896ac310402de0e4f5d2c15a93cb89425aca (diff)
usb: rockchip: add the rockusb gadget
this patch implement rockusb protocol on the device side. this is based on USB download gadget infrastructure. the rockusb function implements the rd, wl, rid commands. it can work with rkdeveloptool Signed-off-by: Eddie Cai <eddie.cai.linux@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch/arm/include')
-rw-r--r--arch/arm/include/asm/arch-rockchip/f_rockusb.h133
1 files changed, 133 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 0000000000..0e99f1b76d
--- /dev/null
+++ b/arch/arm/include/asm/arch-rockchip/f_rockusb.h
@@ -0,0 +1,133 @@
+/*
+ * (C) Copyright 2017
+ *
+ * Eddie Cai <eddie.cai.linux@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#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 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_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;
+ 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_ */
+