diff options
| -rw-r--r-- | MAINTAINERS | 5 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-rockchip/f_rockusb.h | 133 | ||||
| -rw-r--r-- | drivers/usb/gadget/Kconfig | 8 | ||||
| -rw-r--r-- | drivers/usb/gadget/Makefile | 1 | ||||
| -rw-r--r-- | drivers/usb/gadget/f_rockusb.c | 718 |
5 files changed, 865 insertions, 0 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index e950267..baf2beb 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -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 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..0e99f1b --- /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_ */ + diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 102a63b..c387f5e 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -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 diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile index 7258099..ee8bc99 100644 --- a/drivers/usb/gadget/Makefile +++ b/drivers/usb/gadget/Makefile @@ -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 diff --git a/drivers/usb/gadget/f_rockusb.c b/drivers/usb/gadget/f_rockusb.c new file mode 100644 index 0000000..d5a10f1 --- /dev/null +++ b/drivers/usb/gadget/f_rockusb.c @@ -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); +} |