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usb: rockchip: add the rockusb gadget

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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>
master
Eddie Cai 7 years ago committed by Marek Vasut
parent f4f9896ac3
commit bf2b72bef1
5 changed files with 865 additions and 0 deletions
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  1. 5
      MAINTAINERS
  2. 133
      arch/arm/include/asm/arch-rockchip/f_rockusb.h
  3. 8
      drivers/usb/gadget/Kconfig
  4. 1
      drivers/usb/gadget/Makefile
  5. 718
      drivers/usb/gadget/f_rockusb.c

5
MAINTAINERS
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@ -488,6 +488,11 @@ S: Maintained
T: git git://git.denx.de/u-boot-usb.git topic-xhci
F: drivers/usb/host/xhci*
ROCKUSB
M: Eddie Cai <eddie.cai.linux@gmail.com>
S: Maintained
F: drivers/usb/gadget/f_rockusb.c
VIDEO
M: Anatolij Gustschin <agust@denx.de>
S: Maintained

133
arch/arm/include/asm/arch-rockchip/f_rockusb.h
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@ -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_ */

8
drivers/usb/gadget/Kconfig
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@ -134,6 +134,14 @@ config USB_FUNCTION_SDP
allows to download images into memory and execute (jump to) them
using the same protocol as implemented by the i.MX family's boot ROM.
config USB_FUNCTION_ROCKUSB
bool "Enable USB rockusb gadget"
help
Rockusb protocol is widely used by Rockchip SoC based devices. It can
read/write info, image to/from devices. This enables the USB part of
the rockusb gadget.for more detail about Rockusb protocol, please see
doc/README.rockusb
endif # USB_GADGET_DOWNLOAD
config USB_ETHER

1
drivers/usb/gadget/Makefile
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@ -30,6 +30,7 @@ obj-$(CONFIG_USB_FUNCTION_DFU) += f_dfu.o
obj-$(CONFIG_USB_FUNCTION_MASS_STORAGE) += f_mass_storage.o
obj-$(CONFIG_USB_FUNCTION_FASTBOOT) += f_fastboot.o
obj-$(CONFIG_USB_FUNCTION_SDP) += f_sdp.o
obj-$(CONFIG_USB_FUNCTION_ROCKUSB) += f_rockusb.o
endif
endif
ifdef CONFIG_USB_ETHER

718
drivers/usb/gadget/f_rockusb.c
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@ -0,0 +1,718 @@
/*
* (C) Copyright 2017
*
* Eddie Cai <eddie.cai.linux@gmail.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <config.h>
#include <common.h>
#include <errno.h>
#include <malloc.h>
#include <memalign.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#include <linux/usb/composite.h>
#include <linux/compiler.h>
#include <version.h>
#include <g_dnl.h>
#include <asm/arch/f_rockusb.h>
static inline struct f_rockusb *func_to_rockusb(struct usb_function *f)
{
return container_of(f, struct f_rockusb, usb_function);
}
static struct usb_endpoint_descriptor fs_ep_in = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = USB_DIR_IN,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
.wMaxPacketSize = cpu_to_le16(64),
};
static struct usb_endpoint_descriptor fs_ep_out = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = USB_DIR_OUT,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
.wMaxPacketSize = cpu_to_le16(64),
};
static struct usb_endpoint_descriptor hs_ep_in = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = USB_DIR_IN,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
.wMaxPacketSize = cpu_to_le16(512),
};
static struct usb_endpoint_descriptor hs_ep_out = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = USB_DIR_OUT,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
.wMaxPacketSize = cpu_to_le16(512),
};
static struct usb_interface_descriptor interface_desc = {
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
.bInterfaceNumber = 0x00,
.bAlternateSetting = 0x00,
.bNumEndpoints = 0x02,
.bInterfaceClass = ROCKUSB_INTERFACE_CLASS,
.bInterfaceSubClass = ROCKUSB_INTERFACE_SUB_CLASS,
.bInterfaceProtocol = ROCKUSB_INTERFACE_PROTOCOL,
};
static struct usb_descriptor_header *rkusb_fs_function[] = {
(struct usb_descriptor_header *)&interface_desc,
(struct usb_descriptor_header *)&fs_ep_in,
(struct usb_descriptor_header *)&fs_ep_out,
};
static struct usb_descriptor_header *rkusb_hs_function[] = {
(struct usb_descriptor_header *)&interface_desc,
(struct usb_descriptor_header *)&hs_ep_in,
(struct usb_descriptor_header *)&hs_ep_out,
NULL,
};
static const char rkusb_name[] = "Rockchip Rockusb";
static struct usb_string rkusb_string_defs[] = {
[0].s = rkusb_name,
{ } /* end of list */
};
static struct usb_gadget_strings stringtab_rkusb = {
.language = 0x0409, /* en-us */
.strings = rkusb_string_defs,
};
static struct usb_gadget_strings *rkusb_strings[] = {
&stringtab_rkusb,
NULL,
};
static struct f_rockusb *rockusb_func;
static void rx_handler_command(struct usb_ep *ep, struct usb_request *req);
static int rockusb_tx_write_csw(u32 tag, int residue, u8 status, int size);
struct f_rockusb *get_rkusb(void)
{
struct f_rockusb *f_rkusb = rockusb_func;
if (!f_rkusb) {
f_rkusb = memalign(CONFIG_SYS_CACHELINE_SIZE, sizeof(*f_rkusb));
if (!f_rkusb)
return 0;
rockusb_func = f_rkusb;
memset(f_rkusb, 0, sizeof(*f_rkusb));
}
if (!f_rkusb->buf_head) {
f_rkusb->buf_head = memalign(CONFIG_SYS_CACHELINE_SIZE,
RKUSB_BUF_SIZE);
if (!f_rkusb->buf_head)
return 0;
f_rkusb->buf = f_rkusb->buf_head;
memset(f_rkusb->buf_head, 0, RKUSB_BUF_SIZE);
}
return f_rkusb;
}
static struct usb_endpoint_descriptor *rkusb_ep_desc(
struct usb_gadget *g,
struct usb_endpoint_descriptor *fs,
struct usb_endpoint_descriptor *hs)
{
if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH)
return hs;
return fs;
}
static void rockusb_complete(struct usb_ep *ep, struct usb_request *req)
{
int status = req->status;
if (!status)
return;
debug("status: %d ep '%s' trans: %d\n", status, ep->name, req->actual);
}
/* config the rockusb device*/
static int rockusb_bind(struct usb_configuration *c, struct usb_function *f)
{
int id;
struct usb_gadget *gadget = c->cdev->gadget;
struct f_rockusb *f_rkusb = func_to_rockusb(f);
const char *s;
id = usb_interface_id(c, f);
if (id < 0)
return id;
interface_desc.bInterfaceNumber = id;
id = usb_string_id(c->cdev);
if (id < 0)
return id;
rkusb_string_defs[0].id = id;
interface_desc.iInterface = id;
f_rkusb->in_ep = usb_ep_autoconfig(gadget, &fs_ep_in);
if (!f_rkusb->in_ep)
return -ENODEV;
f_rkusb->in_ep->driver_data = c->cdev;
f_rkusb->out_ep = usb_ep_autoconfig(gadget, &fs_ep_out);
if (!f_rkusb->out_ep)
return -ENODEV;
f_rkusb->out_ep->driver_data = c->cdev;
f->descriptors = rkusb_fs_function;
if (gadget_is_dualspeed(gadget)) {
hs_ep_in.bEndpointAddress = fs_ep_in.bEndpointAddress;
hs_ep_out.bEndpointAddress = fs_ep_out.bEndpointAddress;
f->hs_descriptors = rkusb_hs_function;
}
s = env_get("serial#");
if (s)
g_dnl_set_serialnumber((char *)s);
return 0;
}
static void rockusb_unbind(struct usb_configuration *c, struct usb_function *f)
{
/* clear the configuration*/
memset(rockusb_func, 0, sizeof(*rockusb_func));
}
static void rockusb_disable(struct usb_function *f)
{
struct f_rockusb *f_rkusb = func_to_rockusb(f);
usb_ep_disable(f_rkusb->out_ep);
usb_ep_disable(f_rkusb->in_ep);
if (f_rkusb->out_req) {
free(f_rkusb->out_req->buf);
usb_ep_free_request(f_rkusb->out_ep, f_rkusb->out_req);
f_rkusb->out_req = NULL;
}
if (f_rkusb->in_req) {
free(f_rkusb->in_req->buf);
usb_ep_free_request(f_rkusb->in_ep, f_rkusb->in_req);
f_rkusb->in_req = NULL;
}
if (f_rkusb->buf_head) {
free(f_rkusb->buf_head);
f_rkusb->buf_head = NULL;
f_rkusb->buf = NULL;
}
}
static struct usb_request *rockusb_start_ep(struct usb_ep *ep)
{
struct usb_request *req;
req = usb_ep_alloc_request(ep, 0);
if (!req)
return NULL;
req->length = EP_BUFFER_SIZE;
req->buf = memalign(CONFIG_SYS_CACHELINE_SIZE, EP_BUFFER_SIZE);
if (!req->buf) {
usb_ep_free_request(ep, req);
return NULL;
}
memset(req->buf, 0, req->length);
return req;
}
static int rockusb_set_alt(struct usb_function *f, unsigned int interface,
unsigned int alt)
{
int ret;
struct usb_composite_dev *cdev = f->config->cdev;
struct usb_gadget *gadget = cdev->gadget;
struct f_rockusb *f_rkusb = func_to_rockusb(f);
const struct usb_endpoint_descriptor *d;
debug("%s: func: %s intf: %d alt: %d\n",
__func__, f->name, interface, alt);
d = rkusb_ep_desc(gadget, &fs_ep_out, &hs_ep_out);
ret = usb_ep_enable(f_rkusb->out_ep, d);
if (ret) {
printf("failed to enable out ep\n");
return ret;
}
f_rkusb->out_req = rockusb_start_ep(f_rkusb->out_ep);
if (!f_rkusb->out_req) {
printf("failed to alloc out req\n");
ret = -EINVAL;
goto err;
}
f_rkusb->out_req->complete = rx_handler_command;
d = rkusb_ep_desc(gadget, &fs_ep_in, &hs_ep_in);
ret = usb_ep_enable(f_rkusb->in_ep, d);
if (ret) {
printf("failed to enable in ep\n");
goto err;
}
f_rkusb->in_req = rockusb_start_ep(f_rkusb->in_ep);
if (!f_rkusb->in_req) {
printf("failed alloc req in\n");
ret = -EINVAL;
goto err;
}
f_rkusb->in_req->complete = rockusb_complete;
ret = usb_ep_queue(f_rkusb->out_ep, f_rkusb->out_req, 0);
if (ret)
goto err;
return 0;
err:
rockusb_disable(f);
return ret;
}
static int rockusb_add(struct usb_configuration *c)
{
struct f_rockusb *f_rkusb = get_rkusb();
int status;
debug("%s: cdev: 0x%p\n", __func__, c->cdev);
f_rkusb->usb_function.name = "f_rockusb";
f_rkusb->usb_function.bind = rockusb_bind;
f_rkusb->usb_function.unbind = rockusb_unbind;
f_rkusb->usb_function.set_alt = rockusb_set_alt;
f_rkusb->usb_function.disable = rockusb_disable;
f_rkusb->usb_function.strings = rkusb_strings;
status = usb_add_function(c, &f_rkusb->usb_function);
if (status) {
free(f_rkusb);
rockusb_func = f_rkusb;
}
return status;
}
void rockusb_dev_init(char *dev_type, int dev_index)
{
struct f_rockusb *f_rkusb = get_rkusb();
f_rkusb->dev_type = dev_type;
f_rkusb->dev_index = dev_index;
}
DECLARE_GADGET_BIND_CALLBACK(usb_dnl_rockusb, rockusb_add);
static int rockusb_tx_write(const char *buffer, unsigned int buffer_size)
{
struct usb_request *in_req = rockusb_func->in_req;
int ret;
memcpy(in_req->buf, buffer, buffer_size);
in_req->length = buffer_size;
usb_ep_dequeue(rockusb_func->in_ep, in_req);
ret = usb_ep_queue(rockusb_func->in_ep, in_req, 0);
if (ret)
printf("Error %d on queue\n", ret);
return 0;
}
static int rockusb_tx_write_str(const char *buffer)
{
return rockusb_tx_write(buffer, strlen(buffer));
}
#ifdef DEBUG
static void printcbw(char *buf)
{
ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw,
sizeof(struct fsg_bulk_cb_wrap));
memcpy((char *)cbw, buf, USB_BULK_CB_WRAP_LEN);
debug("cbw: signature:%x\n", cbw->signature);
debug("cbw: tag=%x\n", cbw->tag);
debug("cbw: data_transfer_length=%d\n", cbw->data_transfer_length);
debug("cbw: flags=%x\n", cbw->flags);
debug("cbw: lun=%d\n", cbw->lun);
debug("cbw: length=%d\n", cbw->length);
debug("cbw: ucOperCode=%x\n", cbw->CDB[0]);
debug("cbw: ucReserved=%x\n", cbw->CDB[1]);
debug("cbw: dwAddress:%x %x %x %x\n", cbw->CDB[5], cbw->CDB[4],
cbw->CDB[3], cbw->CDB[2]);
debug("cbw: ucReserved2=%x\n", cbw->CDB[6]);
debug("cbw: uslength:%x %x\n", cbw->CDB[8], cbw->CDB[7]);
}
static void printcsw(char *buf)
{
ALLOC_CACHE_ALIGN_BUFFER(struct bulk_cs_wrap, csw,
sizeof(struct bulk_cs_wrap));
memcpy((char *)csw, buf, USB_BULK_CS_WRAP_LEN);
debug("csw: signature:%x\n", csw->signature);
debug("csw: tag:%x\n", csw->tag);
debug("csw: residue:%x\n", csw->residue);
debug("csw: status:%x\n", csw->status);
}
#endif
static int rockusb_tx_write_csw(u32 tag, int residue, u8 status, int size)
{
ALLOC_CACHE_ALIGN_BUFFER(struct bulk_cs_wrap, csw,
sizeof(struct bulk_cs_wrap));
csw->signature = cpu_to_le32(USB_BULK_CS_SIG);
csw->tag = tag;
csw->residue = cpu_to_be32(residue);
csw->status = status;
#ifdef DEBUG
printcsw((char *)&csw);
#endif
return rockusb_tx_write((char *)csw, size);
}
static unsigned int rx_bytes_expected(struct usb_ep *ep)
{
struct f_rockusb *f_rkusb = get_rkusb();
int rx_remain = f_rkusb->dl_size - f_rkusb->dl_bytes;
unsigned int rem;
unsigned int maxpacket = ep->maxpacket;
if (rx_remain <= 0)
return 0;
else if (rx_remain > EP_BUFFER_SIZE)
return EP_BUFFER_SIZE;
rem = rx_remain % maxpacket;
if (rem > 0)
rx_remain = rx_remain + (maxpacket - rem);
return rx_remain;
}
/* usb_request complete call back to handle down load image */
static void rx_handler_dl_image(struct usb_ep *ep, struct usb_request *req)
{
struct f_rockusb *f_rkusb = get_rkusb();
unsigned int transfer_size = 0;
const unsigned char *buffer = req->buf;
unsigned int buffer_size = req->actual;
transfer_size = f_rkusb->dl_size - f_rkusb->dl_bytes;
if (!f_rkusb->desc) {
char *type = f_rkusb->dev_type;
int index = f_rkusb->dev_index;
f_rkusb->desc = blk_get_dev(type, index);
if (!f_rkusb->desc ||
f_rkusb->desc->type == DEV_TYPE_UNKNOWN) {
puts("invalid mmc device\n");
rockusb_tx_write_csw(f_rkusb->tag, 0, CSW_FAIL,
USB_BULK_CS_WRAP_LEN);
return;
}
}
if (req->status != 0) {
printf("Bad status: %d\n", req->status);
rockusb_tx_write_csw(f_rkusb->tag, 0, CSW_FAIL,
USB_BULK_CS_WRAP_LEN);
return;
}
if (buffer_size < transfer_size)
transfer_size = buffer_size;
memcpy((void *)f_rkusb->buf, buffer, transfer_size);
f_rkusb->dl_bytes += transfer_size;
int blks = 0, blkcnt = transfer_size / 512;
debug("dl %x bytes, %x blks, write lba %x, dl_size:%x, dl_bytes:%x, ",
transfer_size, blkcnt, f_rkusb->lba, f_rkusb->dl_size,
f_rkusb->dl_bytes);
blks = blk_dwrite(f_rkusb->desc, f_rkusb->lba, blkcnt, f_rkusb->buf);
if (blks != blkcnt) {
printf("failed writing to device %s: %d\n", f_rkusb->dev_type,
f_rkusb->dev_index);
rockusb_tx_write_csw(f_rkusb->tag, 0, CSW_FAIL,
USB_BULK_CS_WRAP_LEN);
return;
}
f_rkusb->lba += blkcnt;
/* Check if transfer is done */
if (f_rkusb->dl_bytes >= f_rkusb->dl_size) {
req->complete = rx_handler_command;
req->length = EP_BUFFER_SIZE;
f_rkusb->buf = f_rkusb->buf_head;
printf("transfer 0x%x bytes done\n", f_rkusb->dl_size);
f_rkusb->dl_size = 0;
rockusb_tx_write_csw(f_rkusb->tag, 0, CSW_GOOD,
USB_BULK_CS_WRAP_LEN);
} else {
req->length = rx_bytes_expected(ep);
if (f_rkusb->buf == f_rkusb->buf_head)
f_rkusb->buf = f_rkusb->buf_head + EP_BUFFER_SIZE;
else
f_rkusb->buf = f_rkusb->buf_head;
debug("remain %x bytes, %x sectors\n", req->length,
req->length / 512);
}
req->actual = 0;
usb_ep_queue(ep, req, 0);
}
static void cb_test_unit_ready(struct usb_ep *ep, struct usb_request *req)
{
ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw,
sizeof(struct fsg_bulk_cb_wrap));
memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN);
rockusb_tx_write_csw(cbw->tag, cbw->data_transfer_length,
CSW_GOOD, USB_BULK_CS_WRAP_LEN);
}
static void cb_read_storage_id(struct usb_ep *ep, struct usb_request *req)
{
ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw,
sizeof(struct fsg_bulk_cb_wrap));
char emmc_id[] = "EMMC ";
printf("read storage id\n");
memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN);
rockusb_tx_write_str(emmc_id);
rockusb_tx_write_csw(cbw->tag, cbw->data_transfer_length, CSW_GOOD,
USB_BULK_CS_WRAP_LEN);
}
static void cb_write_lba(struct usb_ep *ep, struct usb_request *req)
{
ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw,
sizeof(struct fsg_bulk_cb_wrap));
struct f_rockusb *f_rkusb = get_rkusb();
int sector_count;
memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN);
sector_count = (int)get_unaligned_be16(&cbw->CDB[7]);
f_rkusb->lba = get_unaligned_be32(&cbw->CDB[2]);
f_rkusb->dl_size = sector_count * 512;
f_rkusb->dl_bytes = 0;
f_rkusb->tag = cbw->tag;
debug("require write %x bytes, %x sectors to lba %x\n",
f_rkusb->dl_size, sector_count, f_rkusb->lba);
if (f_rkusb->dl_size == 0) {
rockusb_tx_write_csw(cbw->tag, cbw->data_transfer_length,
CSW_FAIL, USB_BULK_CS_WRAP_LEN);
} else {
req->complete = rx_handler_dl_image;
req->length = rx_bytes_expected(ep);
}
}
void __weak rkusb_set_reboot_flag(int flag)
{
struct f_rockusb *f_rkusb = get_rkusb();
printf("rockkusb set reboot flag: %d\n", f_rkusb->reboot_flag);
}
static void compl_do_reset(struct usb_ep *ep, struct usb_request *req)
{
struct f_rockusb *f_rkusb = get_rkusb();
rkusb_set_reboot_flag(f_rkusb->reboot_flag);
do_reset(NULL, 0, 0, NULL);
}
static void cb_reboot(struct usb_ep *ep, struct usb_request *req)
{
ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw,
sizeof(struct fsg_bulk_cb_wrap));
struct f_rockusb *f_rkusb = get_rkusb();
f_rkusb->reboot_flag = 0;
memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN);
f_rkusb->reboot_flag = cbw->CDB[1];
rockusb_func->in_req->complete = compl_do_reset;
rockusb_tx_write_csw(cbw->tag, cbw->data_transfer_length, CSW_GOOD,
USB_BULK_CS_WRAP_LEN);
}
static void cb_not_support(struct usb_ep *ep, struct usb_request *req)
{
ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw,
sizeof(struct fsg_bulk_cb_wrap));
memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN);
printf("Rockusb command %x not support yet\n", cbw->CDB[0]);
rockusb_tx_write_csw(cbw->tag, 0, CSW_FAIL, USB_BULK_CS_WRAP_LEN);
}
static const struct cmd_dispatch_info cmd_dispatch_info[] = {
{
.cmd = K_FW_TEST_UNIT_READY,
.cb = cb_test_unit_ready,
},
{
.cmd = K_FW_READ_FLASH_ID,
.cb = cb_read_storage_id,
},
{
.cmd = K_FW_SET_DEVICE_ID,
.cb = cb_not_support,
},
{
.cmd = K_FW_TEST_BAD_BLOCK,
.cb = cb_not_support,
},
{
.cmd = K_FW_READ_10,
.cb = cb_not_support,
},
{
.cmd = K_FW_WRITE_10,
.cb = cb_not_support,
},
{
.cmd = K_FW_ERASE_10,
.cb = cb_not_support,
},
{
.cmd = K_FW_WRITE_SPARE,
.cb = cb_not_support,
},
{
.cmd = K_FW_READ_SPARE,
.cb = cb_not_support,
},
{
.cmd = K_FW_ERASE_10_FORCE,
.cb = cb_not_support,
},
{
.cmd = K_FW_GET_VERSION,
.cb = cb_not_support,
},
{
.cmd = K_FW_LBA_READ_10,
.cb = cb_not_support,
},
{
.cmd = K_FW_LBA_WRITE_10,
.cb = cb_write_lba,
},
{
.cmd = K_FW_ERASE_SYS_DISK,
.cb = cb_not_support,
},
{
.cmd = K_FW_SDRAM_READ_10,
.cb = cb_not_support,
},
{
.cmd = K_FW_SDRAM_WRITE_10,
.cb = cb_not_support,
},
{
.cmd = K_FW_SDRAM_EXECUTE,
.cb = cb_not_support,
},
{
.cmd = K_FW_READ_FLASH_INFO,
.cb = cb_not_support,
},
{
.cmd = K_FW_GET_CHIP_VER,
.cb = cb_not_support,
},
{
.cmd = K_FW_LOW_FORMAT,
.cb = cb_not_support,
},
{
.cmd = K_FW_SET_RESET_FLAG,
.cb = cb_not_support,
},
{
.cmd = K_FW_SPI_READ_10,
.cb = cb_not_support,
},
{
.cmd = K_FW_SPI_WRITE_10,
.cb = cb_not_support,
},
{
.cmd = K_FW_SESSION,
.cb = cb_not_support,
},
{
.cmd = K_FW_RESET,
.cb = cb_reboot,
},
};
static void rx_handler_command(struct usb_ep *ep, struct usb_request *req)
{
void (*func_cb)(struct usb_ep *ep, struct usb_request *req) = NULL;
ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw,
sizeof(struct fsg_bulk_cb_wrap));
char *cmdbuf = req->buf;
int i;
if (req->status || req->length == 0)
return;
memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN);
#ifdef DEBUG
printcbw(req->buf);
#endif
for (i = 0; i < ARRAY_SIZE(cmd_dispatch_info); i++) {
if (cmd_dispatch_info[i].cmd == cbw->CDB[0]) {
func_cb = cmd_dispatch_info[i].cb;
break;
}
}
if (!func_cb) {
printf("unknown command: %s\n", (char *)req->buf);
rockusb_tx_write_str("FAILunknown command");
} else {
if (req->actual < req->length) {
u8 *buf = (u8 *)req->buf;
buf[req->actual] = 0;
func_cb(ep, req);
} else {
puts("buffer overflow\n");
rockusb_tx_write_str("FAILbuffer overflow");
}
}
*cmdbuf = '\0';
req->actual = 0;
usb_ep_queue(ep, req, 0);
}
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