mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-21 01:18:52 +09:00
![Stephen Warren](/assets/img/avatar_default.png)
CONFIG_SYS_DFU_DATA_BUF_SIZE may be large to allow for FAT/ext layouts to transfer large files. However, this means that individual write operations will take a long time. Allow backends to specify a maximum buffer size, so that each write operation is limited to a smaller data block. This prevents the DFU protocol from timing out when e.g. writing to SPI flash. I would guess that NAND might benefit from setting this value too, but I can't test that. Signed-off-by: Stephen Warren <swarren@nvidia.com>
1003 lines
24 KiB
C
1003 lines
24 KiB
C
/*
|
|
* f_thor.c -- USB TIZEN THOR Downloader gadget function
|
|
*
|
|
* Copyright (C) 2013 Samsung Electronics
|
|
* Lukasz Majewski <l.majewski@samsung.com>
|
|
*
|
|
* Based on code from:
|
|
* git://review.tizen.org/kernel/u-boot
|
|
*
|
|
* Developed by:
|
|
* Copyright (C) 2009 Samsung Electronics
|
|
* Minkyu Kang <mk7.kang@samsung.com>
|
|
* Sanghee Kim <sh0130.kim@samsung.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include <common.h>
|
|
#include <malloc.h>
|
|
#include <version.h>
|
|
#include <linux/usb/ch9.h>
|
|
#include <linux/usb/gadget.h>
|
|
#include <linux/usb/composite.h>
|
|
#include <linux/usb/cdc.h>
|
|
#include <g_dnl.h>
|
|
#include <dfu.h>
|
|
|
|
#include "f_thor.h"
|
|
|
|
static void thor_tx_data(unsigned char *data, int len);
|
|
static void thor_set_dma(void *addr, int len);
|
|
static int thor_rx_data(void);
|
|
|
|
static struct f_thor *thor_func;
|
|
static inline struct f_thor *func_to_thor(struct usb_function *f)
|
|
{
|
|
return container_of(f, struct f_thor, usb_function);
|
|
}
|
|
|
|
DEFINE_CACHE_ALIGN_BUFFER(unsigned char, thor_tx_data_buf,
|
|
sizeof(struct rsp_box));
|
|
DEFINE_CACHE_ALIGN_BUFFER(unsigned char, thor_rx_data_buf,
|
|
sizeof(struct rqt_box));
|
|
|
|
/* ********************************************************** */
|
|
/* THOR protocol - transmission handling */
|
|
/* ********************************************************** */
|
|
DEFINE_CACHE_ALIGN_BUFFER(char, f_name, F_NAME_BUF_SIZE);
|
|
static unsigned long long int thor_file_size;
|
|
static int alt_setting_num;
|
|
|
|
static void send_rsp(const struct rsp_box *rsp)
|
|
{
|
|
memcpy(thor_tx_data_buf, rsp, sizeof(struct rsp_box));
|
|
thor_tx_data(thor_tx_data_buf, sizeof(struct rsp_box));
|
|
|
|
debug("-RSP: %d, %d\n", rsp->rsp, rsp->rsp_data);
|
|
}
|
|
|
|
static void send_data_rsp(s32 ack, s32 count)
|
|
{
|
|
ALLOC_CACHE_ALIGN_BUFFER(struct data_rsp_box, rsp,
|
|
sizeof(struct data_rsp_box));
|
|
|
|
rsp->ack = ack;
|
|
rsp->count = count;
|
|
|
|
memcpy(thor_tx_data_buf, rsp, sizeof(struct data_rsp_box));
|
|
thor_tx_data(thor_tx_data_buf, sizeof(struct data_rsp_box));
|
|
|
|
debug("-DATA RSP: %d, %d\n", ack, count);
|
|
}
|
|
|
|
static int process_rqt_info(const struct rqt_box *rqt)
|
|
{
|
|
ALLOC_CACHE_ALIGN_BUFFER(struct rsp_box, rsp, sizeof(struct rsp_box));
|
|
memset(rsp, 0, sizeof(struct rsp_box));
|
|
|
|
rsp->rsp = rqt->rqt;
|
|
rsp->rsp_data = rqt->rqt_data;
|
|
|
|
switch (rqt->rqt_data) {
|
|
case RQT_INFO_VER_PROTOCOL:
|
|
rsp->int_data[0] = VER_PROTOCOL_MAJOR;
|
|
rsp->int_data[1] = VER_PROTOCOL_MINOR;
|
|
break;
|
|
case RQT_INIT_VER_HW:
|
|
snprintf(rsp->str_data[0], sizeof(rsp->str_data[0]),
|
|
"%x", checkboard());
|
|
break;
|
|
case RQT_INIT_VER_BOOT:
|
|
sprintf(rsp->str_data[0], "%s", U_BOOT_VERSION);
|
|
break;
|
|
case RQT_INIT_VER_KERNEL:
|
|
sprintf(rsp->str_data[0], "%s", "k unknown");
|
|
break;
|
|
case RQT_INIT_VER_PLATFORM:
|
|
sprintf(rsp->str_data[0], "%s", "p unknown");
|
|
break;
|
|
case RQT_INIT_VER_CSC:
|
|
sprintf(rsp->str_data[0], "%s", "c unknown");
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
send_rsp(rsp);
|
|
return true;
|
|
}
|
|
|
|
static int process_rqt_cmd(const struct rqt_box *rqt)
|
|
{
|
|
ALLOC_CACHE_ALIGN_BUFFER(struct rsp_box, rsp, sizeof(struct rsp_box));
|
|
memset(rsp, 0, sizeof(struct rsp_box));
|
|
|
|
rsp->rsp = rqt->rqt;
|
|
rsp->rsp_data = rqt->rqt_data;
|
|
|
|
switch (rqt->rqt_data) {
|
|
case RQT_CMD_REBOOT:
|
|
debug("TARGET RESET\n");
|
|
send_rsp(rsp);
|
|
g_dnl_unregister();
|
|
dfu_free_entities();
|
|
run_command("reset", 0);
|
|
break;
|
|
case RQT_CMD_POWEROFF:
|
|
case RQT_CMD_EFSCLEAR:
|
|
send_rsp(rsp);
|
|
default:
|
|
printf("Command not supported -> cmd: %d\n", rqt->rqt_data);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static long long int download_head(unsigned long long total,
|
|
unsigned int packet_size,
|
|
long long int *left,
|
|
int *cnt)
|
|
{
|
|
long long int rcv_cnt = 0, left_to_rcv, ret_rcv;
|
|
struct dfu_entity *dfu_entity = dfu_get_entity(alt_setting_num);
|
|
void *transfer_buffer = dfu_get_buf(dfu_entity);
|
|
void *buf = transfer_buffer;
|
|
int usb_pkt_cnt = 0, ret;
|
|
|
|
/*
|
|
* Files smaller than THOR_STORE_UNIT_SIZE (now 32 MiB) are stored on
|
|
* the medium.
|
|
* The packet response is sent on the purpose after successful data
|
|
* chunk write. There is a room for improvement when asynchronous write
|
|
* is performed.
|
|
*/
|
|
while (total - rcv_cnt >= packet_size) {
|
|
thor_set_dma(buf, packet_size);
|
|
buf += packet_size;
|
|
ret_rcv = thor_rx_data();
|
|
if (ret_rcv < 0)
|
|
return ret_rcv;
|
|
rcv_cnt += ret_rcv;
|
|
debug("%d: RCV data count: %llu cnt: %d\n", usb_pkt_cnt,
|
|
rcv_cnt, *cnt);
|
|
|
|
if ((rcv_cnt % THOR_STORE_UNIT_SIZE) == 0) {
|
|
ret = dfu_write(dfu_get_entity(alt_setting_num),
|
|
transfer_buffer, THOR_STORE_UNIT_SIZE,
|
|
(*cnt)++);
|
|
if (ret) {
|
|
error("DFU write failed [%d] cnt: %d",
|
|
ret, *cnt);
|
|
return ret;
|
|
}
|
|
buf = transfer_buffer;
|
|
}
|
|
send_data_rsp(0, ++usb_pkt_cnt);
|
|
}
|
|
|
|
/* Calculate the amount of data to arrive from PC (in bytes) */
|
|
left_to_rcv = total - rcv_cnt;
|
|
|
|
/*
|
|
* Calculate number of data already received. but not yet stored
|
|
* on the medium (they are smaller than THOR_STORE_UNIT_SIZE)
|
|
*/
|
|
*left = left_to_rcv + buf - transfer_buffer;
|
|
debug("%s: left: %llu left_to_rcv: %llu buf: 0x%p\n", __func__,
|
|
*left, left_to_rcv, buf);
|
|
|
|
if (left_to_rcv) {
|
|
thor_set_dma(buf, packet_size);
|
|
ret_rcv = thor_rx_data();
|
|
if (ret_rcv < 0)
|
|
return ret_rcv;
|
|
rcv_cnt += ret_rcv;
|
|
send_data_rsp(0, ++usb_pkt_cnt);
|
|
}
|
|
|
|
debug("%s: %llu total: %llu cnt: %d\n", __func__, rcv_cnt, total, *cnt);
|
|
|
|
return rcv_cnt;
|
|
}
|
|
|
|
static int download_tail(long long int left, int cnt)
|
|
{
|
|
struct dfu_entity *dfu_entity = dfu_get_entity(alt_setting_num);
|
|
void *transfer_buffer = dfu_get_buf(dfu_entity);
|
|
int ret;
|
|
|
|
debug("%s: left: %llu cnt: %d\n", __func__, left, cnt);
|
|
|
|
if (left) {
|
|
ret = dfu_write(dfu_entity, transfer_buffer, left, cnt++);
|
|
if (ret) {
|
|
error("DFU write failed [%d]: left: %llu", ret, left);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* To store last "packet" or write file from buffer to filesystem
|
|
* DFU storage backend requires dfu_flush
|
|
*
|
|
* This also frees memory malloc'ed by dfu_get_buf(), so no explicit
|
|
* need fo call dfu_free_buf() is needed.
|
|
*/
|
|
ret = dfu_flush(dfu_entity, transfer_buffer, 0, cnt);
|
|
if (ret)
|
|
error("DFU flush failed!");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static long long int process_rqt_download(const struct rqt_box *rqt)
|
|
{
|
|
ALLOC_CACHE_ALIGN_BUFFER(struct rsp_box, rsp, sizeof(struct rsp_box));
|
|
static long long int left, ret_head;
|
|
int file_type, ret = 0;
|
|
static int cnt;
|
|
|
|
memset(rsp, 0, sizeof(struct rsp_box));
|
|
rsp->rsp = rqt->rqt;
|
|
rsp->rsp_data = rqt->rqt_data;
|
|
|
|
switch (rqt->rqt_data) {
|
|
case RQT_DL_INIT:
|
|
thor_file_size = rqt->int_data[0];
|
|
debug("INIT: total %d bytes\n", rqt->int_data[0]);
|
|
break;
|
|
case RQT_DL_FILE_INFO:
|
|
file_type = rqt->int_data[0];
|
|
if (file_type == FILE_TYPE_PIT) {
|
|
puts("PIT table file - not supported\n");
|
|
rsp->ack = -ENOTSUPP;
|
|
ret = rsp->ack;
|
|
break;
|
|
}
|
|
|
|
thor_file_size = rqt->int_data[1];
|
|
memcpy(f_name, rqt->str_data[0], F_NAME_BUF_SIZE);
|
|
|
|
debug("INFO: name(%s, %d), size(%llu), type(%d)\n",
|
|
f_name, 0, thor_file_size, file_type);
|
|
|
|
rsp->int_data[0] = THOR_PACKET_SIZE;
|
|
|
|
alt_setting_num = dfu_get_alt(f_name);
|
|
if (alt_setting_num < 0) {
|
|
error("Alt setting [%d] to write not found!",
|
|
alt_setting_num);
|
|
rsp->ack = -ENODEV;
|
|
ret = rsp->ack;
|
|
}
|
|
break;
|
|
case RQT_DL_FILE_START:
|
|
send_rsp(rsp);
|
|
ret_head = download_head(thor_file_size, THOR_PACKET_SIZE,
|
|
&left, &cnt);
|
|
if (ret_head < 0) {
|
|
left = 0;
|
|
cnt = 0;
|
|
}
|
|
return ret_head;
|
|
case RQT_DL_FILE_END:
|
|
debug("DL FILE_END\n");
|
|
rsp->ack = download_tail(left, cnt);
|
|
ret = rsp->ack;
|
|
left = 0;
|
|
cnt = 0;
|
|
break;
|
|
case RQT_DL_EXIT:
|
|
debug("DL EXIT\n");
|
|
break;
|
|
default:
|
|
error("Operation not supported: %d", rqt->rqt_data);
|
|
ret = -ENOTSUPP;
|
|
}
|
|
|
|
send_rsp(rsp);
|
|
return ret;
|
|
}
|
|
|
|
static int process_data(void)
|
|
{
|
|
ALLOC_CACHE_ALIGN_BUFFER(struct rqt_box, rqt, sizeof(struct rqt_box));
|
|
int ret = -EINVAL;
|
|
|
|
memcpy(rqt, thor_rx_data_buf, sizeof(struct rqt_box));
|
|
|
|
debug("+RQT: %d, %d\n", rqt->rqt, rqt->rqt_data);
|
|
|
|
switch (rqt->rqt) {
|
|
case RQT_INFO:
|
|
ret = process_rqt_info(rqt);
|
|
break;
|
|
case RQT_CMD:
|
|
ret = process_rqt_cmd(rqt);
|
|
break;
|
|
case RQT_DL:
|
|
ret = (int) process_rqt_download(rqt);
|
|
break;
|
|
case RQT_UL:
|
|
puts("RQT: UPLOAD not supported!\n");
|
|
break;
|
|
default:
|
|
error("unknown request (%d)", rqt->rqt);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* ********************************************************** */
|
|
/* THOR USB Function */
|
|
/* ********************************************************** */
|
|
|
|
static inline struct usb_endpoint_descriptor *
|
|
ep_desc(struct usb_gadget *g, struct usb_endpoint_descriptor *hs,
|
|
struct usb_endpoint_descriptor *fs)
|
|
{
|
|
if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH)
|
|
return hs;
|
|
return fs;
|
|
}
|
|
|
|
static struct usb_interface_descriptor thor_downloader_intf_data = {
|
|
.bLength = sizeof(thor_downloader_intf_data),
|
|
.bDescriptorType = USB_DT_INTERFACE,
|
|
|
|
.bNumEndpoints = 2,
|
|
.bInterfaceClass = USB_CLASS_CDC_DATA,
|
|
};
|
|
|
|
static struct usb_endpoint_descriptor fs_in_desc = {
|
|
.bLength = USB_DT_ENDPOINT_SIZE,
|
|
.bDescriptorType = USB_DT_ENDPOINT,
|
|
|
|
.bEndpointAddress = USB_DIR_IN,
|
|
.bmAttributes = USB_ENDPOINT_XFER_BULK,
|
|
};
|
|
|
|
static struct usb_endpoint_descriptor fs_out_desc = {
|
|
.bLength = USB_DT_ENDPOINT_SIZE,
|
|
.bDescriptorType = USB_DT_ENDPOINT,
|
|
|
|
.bEndpointAddress = USB_DIR_OUT,
|
|
.bmAttributes = USB_ENDPOINT_XFER_BULK,
|
|
};
|
|
|
|
/* CDC configuration */
|
|
static struct usb_interface_descriptor thor_downloader_intf_int = {
|
|
.bLength = sizeof(thor_downloader_intf_int),
|
|
.bDescriptorType = USB_DT_INTERFACE,
|
|
|
|
.bNumEndpoints = 1,
|
|
.bInterfaceClass = USB_CLASS_COMM,
|
|
/* 0x02 Abstract Line Control Model */
|
|
.bInterfaceSubClass = USB_CDC_SUBCLASS_ACM,
|
|
/* 0x01 Common AT commands */
|
|
.bInterfaceProtocol = USB_CDC_ACM_PROTO_AT_V25TER,
|
|
};
|
|
|
|
static struct usb_cdc_header_desc thor_downloader_cdc_header = {
|
|
.bLength = sizeof(thor_downloader_cdc_header),
|
|
.bDescriptorType = 0x24, /* CS_INTERFACE */
|
|
.bDescriptorSubType = 0x00,
|
|
.bcdCDC = 0x0110,
|
|
};
|
|
|
|
static struct usb_cdc_call_mgmt_descriptor thor_downloader_cdc_call = {
|
|
.bLength = sizeof(thor_downloader_cdc_call),
|
|
.bDescriptorType = 0x24, /* CS_INTERFACE */
|
|
.bDescriptorSubType = 0x01,
|
|
.bmCapabilities = 0x00,
|
|
.bDataInterface = 0x01,
|
|
};
|
|
|
|
static struct usb_cdc_acm_descriptor thor_downloader_cdc_abstract = {
|
|
.bLength = sizeof(thor_downloader_cdc_abstract),
|
|
.bDescriptorType = 0x24, /* CS_INTERFACE */
|
|
.bDescriptorSubType = 0x02,
|
|
.bmCapabilities = 0x00,
|
|
};
|
|
|
|
static struct usb_cdc_union_desc thor_downloader_cdc_union = {
|
|
.bLength = sizeof(thor_downloader_cdc_union),
|
|
.bDescriptorType = 0x24, /* CS_INTERFACE */
|
|
.bDescriptorSubType = USB_CDC_UNION_TYPE,
|
|
};
|
|
|
|
static struct usb_endpoint_descriptor fs_int_desc = {
|
|
.bLength = USB_DT_ENDPOINT_SIZE,
|
|
.bDescriptorType = USB_DT_ENDPOINT,
|
|
|
|
.bEndpointAddress = 3 | USB_DIR_IN,
|
|
.bmAttributes = USB_ENDPOINT_XFER_INT,
|
|
.wMaxPacketSize = __constant_cpu_to_le16(16),
|
|
|
|
.bInterval = 0x9,
|
|
};
|
|
|
|
static struct usb_interface_assoc_descriptor
|
|
thor_iad_descriptor = {
|
|
.bLength = sizeof(thor_iad_descriptor),
|
|
.bDescriptorType = USB_DT_INTERFACE_ASSOCIATION,
|
|
|
|
.bFirstInterface = 0,
|
|
.bInterfaceCount = 2, /* control + data */
|
|
.bFunctionClass = USB_CLASS_COMM,
|
|
.bFunctionSubClass = USB_CDC_SUBCLASS_ACM,
|
|
.bFunctionProtocol = USB_CDC_PROTO_NONE,
|
|
};
|
|
|
|
static struct usb_endpoint_descriptor hs_in_desc = {
|
|
.bLength = USB_DT_ENDPOINT_SIZE,
|
|
.bDescriptorType = USB_DT_ENDPOINT,
|
|
|
|
.bmAttributes = USB_ENDPOINT_XFER_BULK,
|
|
.wMaxPacketSize = __constant_cpu_to_le16(512),
|
|
};
|
|
|
|
static struct usb_endpoint_descriptor hs_out_desc = {
|
|
.bLength = USB_DT_ENDPOINT_SIZE,
|
|
.bDescriptorType = USB_DT_ENDPOINT,
|
|
|
|
.bmAttributes = USB_ENDPOINT_XFER_BULK,
|
|
.wMaxPacketSize = __constant_cpu_to_le16(512),
|
|
};
|
|
|
|
static struct usb_endpoint_descriptor hs_int_desc = {
|
|
.bLength = USB_DT_ENDPOINT_SIZE,
|
|
.bDescriptorType = USB_DT_ENDPOINT,
|
|
|
|
.bmAttributes = USB_ENDPOINT_XFER_INT,
|
|
.wMaxPacketSize = __constant_cpu_to_le16(16),
|
|
|
|
.bInterval = 0x9,
|
|
};
|
|
|
|
static struct usb_qualifier_descriptor dev_qualifier = {
|
|
.bLength = sizeof(dev_qualifier),
|
|
.bDescriptorType = USB_DT_DEVICE_QUALIFIER,
|
|
|
|
.bcdUSB = __constant_cpu_to_le16(0x0200),
|
|
.bDeviceClass = USB_CLASS_VENDOR_SPEC,
|
|
|
|
.bNumConfigurations = 2,
|
|
};
|
|
|
|
/*
|
|
* This attribute vendor descriptor is necessary for correct operation with
|
|
* Windows version of THOR download program
|
|
*
|
|
* It prevents windows driver from sending zero lenght packet (ZLP) after
|
|
* each THOR_PACKET_SIZE. This assures consistent behaviour with libusb
|
|
*/
|
|
static struct usb_cdc_attribute_vendor_descriptor thor_downloader_cdc_av = {
|
|
.bLength = sizeof(thor_downloader_cdc_av),
|
|
.bDescriptorType = 0x24,
|
|
.bDescriptorSubType = 0x80,
|
|
.DAUType = 0x0002,
|
|
.DAULength = 0x0001,
|
|
.DAUValue = 0x00,
|
|
};
|
|
|
|
static const struct usb_descriptor_header *hs_thor_downloader_function[] = {
|
|
(struct usb_descriptor_header *)&thor_iad_descriptor,
|
|
|
|
(struct usb_descriptor_header *)&thor_downloader_intf_int,
|
|
(struct usb_descriptor_header *)&thor_downloader_cdc_header,
|
|
(struct usb_descriptor_header *)&thor_downloader_cdc_call,
|
|
(struct usb_descriptor_header *)&thor_downloader_cdc_abstract,
|
|
(struct usb_descriptor_header *)&thor_downloader_cdc_union,
|
|
(struct usb_descriptor_header *)&hs_int_desc,
|
|
|
|
(struct usb_descriptor_header *)&thor_downloader_intf_data,
|
|
(struct usb_descriptor_header *)&thor_downloader_cdc_av,
|
|
(struct usb_descriptor_header *)&hs_in_desc,
|
|
(struct usb_descriptor_header *)&hs_out_desc,
|
|
NULL,
|
|
};
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
static struct usb_request *alloc_ep_req(struct usb_ep *ep, unsigned length)
|
|
{
|
|
struct usb_request *req;
|
|
|
|
req = usb_ep_alloc_request(ep, 0);
|
|
if (!req)
|
|
return req;
|
|
|
|
req->length = length;
|
|
req->buf = memalign(CONFIG_SYS_CACHELINE_SIZE, length);
|
|
if (!req->buf) {
|
|
usb_ep_free_request(ep, req);
|
|
req = NULL;
|
|
}
|
|
|
|
return req;
|
|
}
|
|
|
|
static int thor_rx_data(void)
|
|
{
|
|
struct thor_dev *dev = thor_func->dev;
|
|
int data_to_rx, tmp, status;
|
|
|
|
data_to_rx = dev->out_req->length;
|
|
tmp = data_to_rx;
|
|
do {
|
|
dev->out_req->length = data_to_rx;
|
|
debug("dev->out_req->length:%d dev->rxdata:%d\n",
|
|
dev->out_req->length, dev->rxdata);
|
|
|
|
status = usb_ep_queue(dev->out_ep, dev->out_req, 0);
|
|
if (status) {
|
|
error("kill %s: resubmit %d bytes --> %d",
|
|
dev->out_ep->name, dev->out_req->length, status);
|
|
usb_ep_set_halt(dev->out_ep);
|
|
return -EAGAIN;
|
|
}
|
|
|
|
while (!dev->rxdata) {
|
|
usb_gadget_handle_interrupts();
|
|
if (ctrlc())
|
|
return -1;
|
|
}
|
|
dev->rxdata = 0;
|
|
data_to_rx -= dev->out_req->actual;
|
|
} while (data_to_rx);
|
|
|
|
return tmp;
|
|
}
|
|
|
|
static void thor_tx_data(unsigned char *data, int len)
|
|
{
|
|
struct thor_dev *dev = thor_func->dev;
|
|
unsigned char *ptr = dev->in_req->buf;
|
|
int status;
|
|
|
|
memset(ptr, 0, len);
|
|
memcpy(ptr, data, len);
|
|
|
|
dev->in_req->length = len;
|
|
|
|
debug("%s: dev->in_req->length:%d to_cpy:%d\n", __func__,
|
|
dev->in_req->length, sizeof(data));
|
|
|
|
status = usb_ep_queue(dev->in_ep, dev->in_req, 0);
|
|
if (status) {
|
|
error("kill %s: resubmit %d bytes --> %d",
|
|
dev->in_ep->name, dev->in_req->length, status);
|
|
usb_ep_set_halt(dev->in_ep);
|
|
}
|
|
|
|
/* Wait until tx interrupt received */
|
|
while (!dev->txdata)
|
|
usb_gadget_handle_interrupts();
|
|
|
|
dev->txdata = 0;
|
|
}
|
|
|
|
static void thor_rx_tx_complete(struct usb_ep *ep, struct usb_request *req)
|
|
{
|
|
struct thor_dev *dev = thor_func->dev;
|
|
int status = req->status;
|
|
|
|
debug("%s: ep_ptr:%p, req_ptr:%p\n", __func__, ep, req);
|
|
switch (status) {
|
|
case 0:
|
|
if (ep == dev->out_ep)
|
|
dev->rxdata = 1;
|
|
else
|
|
dev->txdata = 1;
|
|
|
|
break;
|
|
|
|
/* this endpoint is normally active while we're configured */
|
|
case -ECONNABORTED: /* hardware forced ep reset */
|
|
case -ECONNRESET: /* request dequeued */
|
|
case -ESHUTDOWN: /* disconnect from host */
|
|
case -EREMOTEIO: /* short read */
|
|
case -EOVERFLOW:
|
|
error("ERROR:%d", status);
|
|
break;
|
|
}
|
|
|
|
debug("%s complete --> %d, %d/%d\n", ep->name,
|
|
status, req->actual, req->length);
|
|
}
|
|
|
|
static struct usb_request *thor_start_ep(struct usb_ep *ep)
|
|
{
|
|
struct usb_request *req;
|
|
|
|
req = alloc_ep_req(ep, THOR_PACKET_SIZE);
|
|
debug("%s: ep:%p req:%p\n", __func__, ep, req);
|
|
|
|
if (!req)
|
|
return NULL;
|
|
|
|
memset(req->buf, 0, req->length);
|
|
req->complete = thor_rx_tx_complete;
|
|
|
|
return req;
|
|
}
|
|
|
|
static void thor_setup_complete(struct usb_ep *ep, struct usb_request *req)
|
|
{
|
|
if (req->status || req->actual != req->length)
|
|
debug("setup complete --> %d, %d/%d\n",
|
|
req->status, req->actual, req->length);
|
|
}
|
|
|
|
static int
|
|
thor_func_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl)
|
|
{
|
|
struct thor_dev *dev = thor_func->dev;
|
|
struct usb_request *req = dev->req;
|
|
struct usb_gadget *gadget = dev->gadget;
|
|
int value = 0;
|
|
|
|
u16 len = le16_to_cpu(ctrl->wLength);
|
|
|
|
debug("Req_Type: 0x%x Req: 0x%x wValue: 0x%x wIndex: 0x%x wLen: 0x%x\n",
|
|
ctrl->bRequestType, ctrl->bRequest, ctrl->wValue, ctrl->wIndex,
|
|
ctrl->wLength);
|
|
|
|
switch (ctrl->bRequest) {
|
|
case USB_CDC_REQ_SET_CONTROL_LINE_STATE:
|
|
value = 0;
|
|
break;
|
|
case USB_CDC_REQ_SET_LINE_CODING:
|
|
value = len;
|
|
/* Line Coding set done = configuration done */
|
|
thor_func->dev->configuration_done = 1;
|
|
break;
|
|
|
|
default:
|
|
error("thor_setup: unknown request: %d", ctrl->bRequest);
|
|
}
|
|
|
|
if (value >= 0) {
|
|
req->length = value;
|
|
req->zero = value < len;
|
|
value = usb_ep_queue(gadget->ep0, req, 0);
|
|
if (value < 0) {
|
|
debug("%s: ep_queue: %d\n", __func__, value);
|
|
req->status = 0;
|
|
}
|
|
}
|
|
|
|
return value;
|
|
}
|
|
|
|
/* Specific to the THOR protocol */
|
|
static void thor_set_dma(void *addr, int len)
|
|
{
|
|
struct thor_dev *dev = thor_func->dev;
|
|
|
|
debug("in_req:%p, out_req:%p\n", dev->in_req, dev->out_req);
|
|
debug("addr:%p, len:%d\n", addr, len);
|
|
|
|
dev->out_req->buf = addr;
|
|
dev->out_req->length = len;
|
|
}
|
|
|
|
int thor_init(void)
|
|
{
|
|
struct thor_dev *dev = thor_func->dev;
|
|
|
|
/* Wait for a device enumeration and configuration settings */
|
|
debug("THOR enumeration/configuration setting....\n");
|
|
while (!dev->configuration_done)
|
|
usb_gadget_handle_interrupts();
|
|
|
|
thor_set_dma(thor_rx_data_buf, strlen("THOR"));
|
|
/* detect the download request from Host PC */
|
|
if (thor_rx_data() < 0) {
|
|
printf("%s: Data not received!\n", __func__);
|
|
return -1;
|
|
}
|
|
|
|
if (!strncmp((char *)thor_rx_data_buf, "THOR", strlen("THOR"))) {
|
|
puts("Download request from the Host PC\n");
|
|
udelay(30 * 1000); /* 30 ms */
|
|
|
|
strcpy((char *)thor_tx_data_buf, "ROHT");
|
|
thor_tx_data(thor_tx_data_buf, strlen("ROHT"));
|
|
} else {
|
|
puts("Wrong reply information\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int thor_handle(void)
|
|
{
|
|
int ret;
|
|
|
|
/* receive the data from Host PC */
|
|
while (1) {
|
|
thor_set_dma(thor_rx_data_buf, sizeof(struct rqt_box));
|
|
ret = thor_rx_data();
|
|
|
|
if (ret > 0) {
|
|
ret = process_data();
|
|
if (ret < 0)
|
|
return ret;
|
|
} else {
|
|
printf("%s: No data received!\n", __func__);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int thor_func_bind(struct usb_configuration *c, struct usb_function *f)
|
|
{
|
|
struct usb_gadget *gadget = c->cdev->gadget;
|
|
struct f_thor *f_thor = func_to_thor(f);
|
|
struct thor_dev *dev;
|
|
struct usb_ep *ep;
|
|
int status;
|
|
|
|
thor_func = f_thor;
|
|
dev = memalign(CONFIG_SYS_CACHELINE_SIZE, sizeof(*dev));
|
|
if (!dev)
|
|
return -ENOMEM;
|
|
|
|
memset(dev, 0, sizeof(*dev));
|
|
dev->gadget = gadget;
|
|
f_thor->dev = dev;
|
|
|
|
debug("%s: usb_configuration: 0x%p usb_function: 0x%p\n",
|
|
__func__, c, f);
|
|
debug("f_thor: 0x%p thor: 0x%p\n", f_thor, dev);
|
|
|
|
/* EP0 */
|
|
/* preallocate control response and buffer */
|
|
dev->req = usb_ep_alloc_request(gadget->ep0, 0);
|
|
if (!dev->req) {
|
|
status = -ENOMEM;
|
|
goto fail;
|
|
}
|
|
dev->req->buf = memalign(CONFIG_SYS_CACHELINE_SIZE,
|
|
gadget->ep0->maxpacket);
|
|
if (!dev->req->buf) {
|
|
status = -ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
dev->req->complete = thor_setup_complete;
|
|
|
|
/* DYNAMIC interface numbers assignments */
|
|
status = usb_interface_id(c, f);
|
|
|
|
if (status < 0)
|
|
goto fail;
|
|
|
|
thor_downloader_intf_int.bInterfaceNumber = status;
|
|
thor_downloader_cdc_union.bMasterInterface0 = status;
|
|
|
|
status = usb_interface_id(c, f);
|
|
|
|
if (status < 0)
|
|
goto fail;
|
|
|
|
thor_downloader_intf_data.bInterfaceNumber = status;
|
|
thor_downloader_cdc_union.bSlaveInterface0 = status;
|
|
|
|
/* allocate instance-specific endpoints */
|
|
ep = usb_ep_autoconfig(gadget, &fs_in_desc);
|
|
if (!ep) {
|
|
status = -ENODEV;
|
|
goto fail;
|
|
}
|
|
|
|
if (gadget_is_dualspeed(gadget)) {
|
|
hs_in_desc.bEndpointAddress =
|
|
fs_in_desc.bEndpointAddress;
|
|
}
|
|
|
|
dev->in_ep = ep; /* Store IN EP for enabling @ setup */
|
|
|
|
ep = usb_ep_autoconfig(gadget, &fs_out_desc);
|
|
if (!ep) {
|
|
status = -ENODEV;
|
|
goto fail;
|
|
}
|
|
|
|
if (gadget_is_dualspeed(gadget))
|
|
hs_out_desc.bEndpointAddress =
|
|
fs_out_desc.bEndpointAddress;
|
|
|
|
dev->out_ep = ep; /* Store OUT EP for enabling @ setup */
|
|
|
|
ep = usb_ep_autoconfig(gadget, &fs_int_desc);
|
|
if (!ep) {
|
|
status = -ENODEV;
|
|
goto fail;
|
|
}
|
|
|
|
dev->int_ep = ep;
|
|
|
|
if (gadget_is_dualspeed(gadget)) {
|
|
hs_int_desc.bEndpointAddress =
|
|
fs_int_desc.bEndpointAddress;
|
|
|
|
f->hs_descriptors = (struct usb_descriptor_header **)
|
|
&hs_thor_downloader_function;
|
|
|
|
if (!f->hs_descriptors)
|
|
goto fail;
|
|
}
|
|
|
|
debug("%s: out_ep:%p out_req:%p\n", __func__,
|
|
dev->out_ep, dev->out_req);
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
free(dev);
|
|
return status;
|
|
}
|
|
|
|
static void free_ep_req(struct usb_ep *ep, struct usb_request *req)
|
|
{
|
|
free(req->buf);
|
|
usb_ep_free_request(ep, req);
|
|
}
|
|
|
|
static void thor_unbind(struct usb_configuration *c, struct usb_function *f)
|
|
{
|
|
struct f_thor *f_thor = func_to_thor(f);
|
|
struct thor_dev *dev = f_thor->dev;
|
|
|
|
free(dev);
|
|
memset(thor_func, 0, sizeof(*thor_func));
|
|
thor_func = NULL;
|
|
}
|
|
|
|
static void thor_func_disable(struct usb_function *f)
|
|
{
|
|
struct f_thor *f_thor = func_to_thor(f);
|
|
struct thor_dev *dev = f_thor->dev;
|
|
|
|
debug("%s:\n", __func__);
|
|
|
|
/* Avoid freeing memory when ep is still claimed */
|
|
if (dev->in_ep->driver_data) {
|
|
free_ep_req(dev->in_ep, dev->in_req);
|
|
usb_ep_disable(dev->in_ep);
|
|
dev->in_ep->driver_data = NULL;
|
|
}
|
|
|
|
if (dev->out_ep->driver_data) {
|
|
dev->out_req->buf = NULL;
|
|
usb_ep_free_request(dev->out_ep, dev->out_req);
|
|
usb_ep_disable(dev->out_ep);
|
|
dev->out_ep->driver_data = NULL;
|
|
}
|
|
|
|
if (dev->int_ep->driver_data) {
|
|
usb_ep_disable(dev->int_ep);
|
|
dev->int_ep->driver_data = NULL;
|
|
}
|
|
}
|
|
|
|
static int thor_eps_setup(struct usb_function *f)
|
|
{
|
|
struct usb_composite_dev *cdev = f->config->cdev;
|
|
struct usb_gadget *gadget = cdev->gadget;
|
|
struct thor_dev *dev = thor_func->dev;
|
|
struct usb_endpoint_descriptor *d;
|
|
struct usb_request *req;
|
|
struct usb_ep *ep;
|
|
int result;
|
|
|
|
ep = dev->in_ep;
|
|
d = ep_desc(gadget, &hs_in_desc, &fs_in_desc);
|
|
debug("(d)bEndpointAddress: 0x%x\n", d->bEndpointAddress);
|
|
|
|
result = usb_ep_enable(ep, d);
|
|
if (result)
|
|
goto exit;
|
|
|
|
ep->driver_data = cdev; /* claim */
|
|
req = thor_start_ep(ep);
|
|
if (!req) {
|
|
usb_ep_disable(ep);
|
|
result = -EIO;
|
|
goto exit;
|
|
}
|
|
|
|
dev->in_req = req;
|
|
ep = dev->out_ep;
|
|
d = ep_desc(gadget, &hs_out_desc, &fs_out_desc);
|
|
debug("(d)bEndpointAddress: 0x%x\n", d->bEndpointAddress);
|
|
|
|
result = usb_ep_enable(ep, d);
|
|
if (result)
|
|
goto exit;
|
|
|
|
ep->driver_data = cdev; /* claim */
|
|
req = thor_start_ep(ep);
|
|
if (!req) {
|
|
usb_ep_disable(ep);
|
|
result = -EIO;
|
|
goto exit;
|
|
}
|
|
|
|
dev->out_req = req;
|
|
/* ACM control EP */
|
|
ep = dev->int_ep;
|
|
ep->driver_data = cdev; /* claim */
|
|
|
|
exit:
|
|
return result;
|
|
}
|
|
|
|
static int thor_func_set_alt(struct usb_function *f,
|
|
unsigned intf, unsigned alt)
|
|
{
|
|
struct thor_dev *dev = thor_func->dev;
|
|
int result;
|
|
|
|
debug("%s: func: %s intf: %d alt: %d\n",
|
|
__func__, f->name, intf, alt);
|
|
|
|
switch (intf) {
|
|
case 0:
|
|
debug("ACM INTR interface\n");
|
|
break;
|
|
case 1:
|
|
debug("Communication Data interface\n");
|
|
result = thor_eps_setup(f);
|
|
if (result)
|
|
error("%s: EPs setup failed!", __func__);
|
|
dev->configuration_done = 1;
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int thor_func_init(struct usb_configuration *c)
|
|
{
|
|
struct f_thor *f_thor;
|
|
int status;
|
|
|
|
debug("%s: cdev: 0x%p\n", __func__, c->cdev);
|
|
|
|
f_thor = memalign(CONFIG_SYS_CACHELINE_SIZE, sizeof(*f_thor));
|
|
if (!f_thor)
|
|
return -ENOMEM;
|
|
|
|
memset(f_thor, 0, sizeof(*f_thor));
|
|
|
|
f_thor->usb_function.name = "f_thor";
|
|
f_thor->usb_function.bind = thor_func_bind;
|
|
f_thor->usb_function.unbind = thor_unbind;
|
|
f_thor->usb_function.setup = thor_func_setup;
|
|
f_thor->usb_function.set_alt = thor_func_set_alt;
|
|
f_thor->usb_function.disable = thor_func_disable;
|
|
|
|
status = usb_add_function(c, &f_thor->usb_function);
|
|
if (status)
|
|
free(f_thor);
|
|
|
|
return status;
|
|
}
|
|
|
|
int thor_add(struct usb_configuration *c)
|
|
{
|
|
debug("%s:\n", __func__);
|
|
return thor_func_init(c);
|
|
}
|
|
|
|
DECLARE_GADGET_BIND_CALLBACK(usb_dnl_thor, thor_add);
|