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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <usb/sunxi_hal_udc.h>
#include <usb/ch9.h>
#include <usb/storage.h>
#include <hal_log.h>
#include "usb_msg.h"
static struct usb_device_descriptor demo_device_desc = {
.bLength = USB_DT_DEVICE_SIZE,
.bDescriptorType = USB_DT_DEVICE,
.bcdUSB = 0x0200,
.bDeviceClass = 0,
.bDeviceSubClass = 0,
.bDeviceProtocol = 0,
.bMaxPacketSize0 = 64,
.idVendor = 0x18d1,
.idProduct = 0x0001,
.bcdDevice = 0x0001,
.iManufacturer = 0x01,
.iProduct = 0x02,
.iSerialNumber = 0x03,
.bNumConfigurations = 1
};
static struct usb_config_descriptor demo_config_desc = {
.bLength = USB_DT_CONFIG_SIZE,
.bDescriptorType = USB_DT_CONFIG,
.wTotalLength = 32, /* FIXME */
.bNumInterfaces = 1,
.bConfigurationValue = 1,
.iConfiguration = 0,
.bmAttributes = 0x80,
.bMaxPower = 0x64 /* 200mA */
};
static struct usb_interface_descriptor demo_intf_desc = {
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
.bInterfaceNumber = 0x0,
.bAlternateSetting = 0x0,
.bNumEndpoints = 2,
.bInterfaceClass = 0x08, /* Mass Storage class */
.bInterfaceSubClass = 0x06, /* SCSI Transparent Subclass */
.bInterfaceProtocol = 0x50, /* Bulk-Only Protocol */
.iInterface = 0
};
static struct usb_endpoint_descriptor demo_ep_bulk_out = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = 0x1 | USB_DIR_OUT,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
.wMaxPacketSize = 0x0200, /* 512 Bytes */
.bInterval = 0
};
static struct usb_endpoint_descriptor demo_ep_bulk_in = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = 0x1 | USB_DIR_IN,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
.wMaxPacketSize = 0x0200, /* 512 Bytes */
.bInterval = 0
};
/*
* String descriptors
*/
static const uint16_t g_str_lang_id[] = {
0x0304, 0x0409
};
static const uint16_t g_str_manufacturer[] = {
0x030e, 'G', 'o', 'o', 'g', 'l', 'e'
};
static const uint16_t g_str_product[] = {
0x0308, 'M', 's', 'g'
};
static const uint16_t g_str_serialnumber[] = {
0x0314, '2', '0', '0', '8', '0', '4', '1', '1'
};
struct usb_msg_dev g_msg_dev = {
.max_lun = 0,
};
static void *g_config_desc = NULL;
void usb_msg_desc_init(void)
{
uint32_t config_desc_len;
void *buf;
config_desc_len = demo_config_desc.bLength + demo_intf_desc.bLength
+ demo_ep_bulk_out.bLength + demo_ep_bulk_in.bLength;
g_config_desc = malloc(config_desc_len);
/* compose configuation, interface and endpoint descriptors */
buf = g_config_desc;
memcpy(buf, &demo_config_desc, demo_config_desc.bLength);
buf += demo_config_desc.bLength;
memcpy(buf, &demo_intf_desc, demo_intf_desc.bLength);
buf += demo_intf_desc.bLength;
memcpy(buf, &demo_ep_bulk_out, demo_ep_bulk_out.bLength);
buf += demo_ep_bulk_out.bLength;
memcpy(buf, &demo_ep_bulk_in, demo_ep_bulk_in.bLength);
hal_udc_device_desc_init(&demo_device_desc);
hal_udc_config_desc_init(g_config_desc, config_desc_len);
/* FIXME: string descriptors must be initialized in the following order now */
hal_udc_string_desc_init(g_str_lang_id);
hal_udc_string_desc_init(g_str_manufacturer);
hal_udc_string_desc_init(g_str_product);
hal_udc_string_desc_init(g_str_serialnumber);
}
static void usb_msg_ep_init(void)
{
hal_log_info("usb demo ep init...\n");
/* init bulk-in ep */
hal_udc_ep_enable(demo_ep_bulk_in.bEndpointAddress,
demo_ep_bulk_in.wMaxPacketSize,
demo_ep_bulk_in.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK);
/* initialise bulk-out ep buf in order to get the first CBW */
hal_udc_ep_set_buf(demo_ep_bulk_out.bEndpointAddress,
g_msg_dev.cbw,
sizeof(g_msg_dev.cbw));
/* init bulk-out ep */
hal_udc_ep_enable(demo_ep_bulk_out.bEndpointAddress,
demo_ep_bulk_out.wMaxPacketSize,
demo_ep_bulk_out.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK);
}
static udc_errno_t usb_msg_class_request_handler(struct usb_ctrlrequest *crq)
{
udc_errno_t ret = UDC_ERRNO_SUCCESS;
switch(crq->bRequest) {
case US_BULK_RESET_REQUEST:
/* TODO */
break;
case US_BULK_GET_MAX_LUN:
hal_log_info("get MAX_LUN\r\n");
if (crq->bRequestType !=
(USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE)) {
ret = UDC_ERRNO_CMD_INVALID;
break;
}
/* FIXME: a fake response for demo */
hal_udc_ep_write(0, &g_msg_dev.max_lun, sizeof(g_msg_dev.max_lun));
break;
default:
ret = UDC_ERRNO_CMD_INVALID;
break;
}
return ret;
}
static udc_errno_t usb_msg_standard_request_handler(struct usb_ctrlrequest *crq)
{
udc_errno_t ret = UDC_ERRNO_SUCCESS;
switch (crq->bRequest) {
case USB_REQ_SET_CONFIGURATION:
/* FIXME: usb msg driver should be independent of demo code */
usb_msg_ep_init();
break;
default:
ret = UDC_ERRNO_CMD_INVALID;
break;
}
return ret;
}
static udc_errno_t usb_msg_scsi_cmd_handler(struct bulk_cb_wrap *cbw)
{
udc_errno_t ret = UDC_ERRNO_SUCCESS;
uint8_t opcode = cbw->CDB[0];
uint8_t fake_rsp[36] = {0x00, 0x80, 0x02, 0x02, 0x1F, 0x00, 0x00,
0x00, 0x54, 0x69, 0x6e, 0x61, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20};
hal_log_info("scsi cmd opcode: 0x%x\n", opcode);
switch (opcode) {
case 0x12: /* INQUIRY */
/* FIXME: a fake response for demo */
hal_udc_ep_write(demo_ep_bulk_in.bEndpointAddress, fake_rsp, sizeof(fake_rsp));
break;
default:
ret = UDC_ERRNO_CMD_INVALID;
break;
}
return ret;
}
udc_errno_t usb_msg_callback(uint8_t ep_addr, udc_callback_event_t event, void *data, uint32_t len)
{
uint8_t ep_idx;
uint8_t is_in;
udc_errno_t ret = UDC_ERRNO_SUCCESS;
struct usb_ctrlrequest *crq;
struct bulk_cb_wrap *cbw;
hal_log_info("usb_msg_callback event: %"PRIu32", len: %"PRIu32"\n", event, len);
ep_idx = ep_addr & 0x7f;
is_in = ep_addr & USB_DIR_IN;
if (ep_idx == 0) { /* handle ep0 */
crq = (struct usb_ctrlrequest *)data;
switch (event) {
case UDC_EVENT_RX_STANDARD_REQUEST:
ret = usb_msg_standard_request_handler(crq);
break;
case UDC_EVENT_RX_CLASS_REQUEST:
ret = usb_msg_class_request_handler(crq);
break;
default:
ret = UDC_ERRNO_CMD_NOT_SUPPORTED;
break;
}
} else { /* handle ep1~4 */
if (is_in) {
/* TODO: maybe useless? */
} else {
cbw = (struct bulk_cb_wrap *)data;
switch (event) {
case UDC_EVENT_RX_DATA:
usb_msg_scsi_cmd_handler(cbw);
break;
default:
ret = UDC_ERRNO_CMD_NOT_SUPPORTED;
break;
}
}
}
return ret;
}
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