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f5fd282d61
foboot/sw/src/usb-dev.c
Sean Cross f5fd282d61 sw: usb-dev: remove errant i++ 
Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-10 22:46:02 +08:00

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#include <stdint.h>
#include <unistd.h>
#include <usb.h>
#include <dfu.h>
#include <printf.h>
#include <usb-desc.h>
static uint8_t reply_buffer[8];
static uint8_t usb_configuration = 0;
#define USB_MAX_PACKET_SIZE 64 /* For FS device */
static uint8_t rx_buffer[USB_MAX_PACKET_SIZE];
void usb_setup(struct usb_device *dev, const struct usb_setup_request *setup)
{
const uint8_t *data = NULL;
uint32_t datalen = 0;
const usb_descriptor_list_t *list;
// printf("%s:%d SETUP packet (%04x) value: %02x index: %02x\n", __FILE__, __LINE__, setup->wRequestAndType, setup->wIndex, setup->wValue);
switch (setup->wRequestAndType)
{
case 0x0500: // SET_ADDRESS
// TODO: Handle set_daddr
// efm32hg_set_daddr(setup->wValue);
break;
case 0x0900: // SET_CONFIGURATION
usb_configuration = setup->wValue;
break;
case 0x0880: // GET_CONFIGURATION
reply_buffer[0] = usb_configuration;
datalen = 1;
data = reply_buffer;
break;
case 0x0080: // GET_STATUS (device)
reply_buffer[0] = 0;
reply_buffer[1] = 0;
datalen = 2;
data = reply_buffer;
break;
case 0x0082: // GET_STATUS (endpoint)
if (setup->wIndex > 0)
{
printf("get_status (setup->wIndex: %d)\n", setup->wIndex);
usb_err(dev, 0);
return;
}
reply_buffer[0] = 0;
reply_buffer[1] = 0;
// XXX handle endpoint stall here
// if (USB->DIEP0CTL & USB_DIEP_CTL_STALL)
// reply_buffer[0] = 1;
data = reply_buffer;
datalen = 2;
break;
case 0x0102: // CLEAR_FEATURE (endpoint)
if (setup->wIndex > 0 || setup->wValue != 0)
{
// TODO: do we need to handle IN vs OUT here?
printf("%s:%d clear feature (%d / %d)\n", __FILE__, __LINE__, setup->wIndex, setup->wValue);
usb_err(dev, 0);
return;
}
// XXX: Should we clear the stall bit?
// USB->DIEP0CTL &= ~USB_DIEP_CTL_STALL;
// TODO: do we need to clear the data toggle here?
break;
case 0x0302: // SET_FEATURE (endpoint)
if (setup->wIndex > 0 || setup->wValue != 0)
{
// TODO: do we need to handle IN vs OUT here?
printf("%s:%d clear feature (%d / %d)\n", __FILE__, __LINE__, setup->wIndex, setup->wValue);
usb_err(dev, 0);
return;
}
// XXX: Should we set the stall bit?
// USB->DIEP0CTL |= USB_DIEP_CTL_STALL;
// TODO: do we need to clear the data toggle here?
break;
case 0x0680: // GET_DESCRIPTOR
case 0x0681:
for (list = usb_descriptor_list; 1; list++)
{
if (list->addr == NULL)
break;
if (setup->wValue == list->wValue)
{
data = list->addr;
if ((setup->wValue >> 8) == 3)
{
// for string descriptors, use the descriptor's
// length field, allowing runtime configured
// length.
datalen = *(list->addr);
}
else
{
datalen = list->length;
}
goto send;
}
}
printf("%s:%d couldn't find descriptor %04x (%d / %d)\n", __FILE__, __LINE__, setup->wValue, setup->wIndex, setup->wValue);
usb_err(dev, 0);
return;
case (MSFT_VENDOR_CODE << 8) | 0xC0: // Get Microsoft descriptor
case (MSFT_VENDOR_CODE << 8) | 0xC1:
if (setup->wIndex == 0x0004)
{
// Return WCID descriptor
data = usb_microsoft_wcid;
datalen = MSFT_WCID_LEN;
break;
}
printf("%s:%d couldn't find microsoft descriptor (%d / %d)\n", __FILE__, __LINE__, setup->wIndex, setup->wValue);
usb_err(dev, 0);
return;
case (WEBUSB_VENDOR_CODE << 8) | 0xC0: // Get WebUSB descriptor
if (setup->wIndex == 0x0002)
{
if (setup->wValue == 0x0001)
{
// Return landing page URL descriptor
data = (uint8_t*)&landing_url_descriptor;
datalen = LANDING_PAGE_DESCRIPTOR_SIZE;
break;
}
}
printf("%s:%d couldn't find webusb descriptor (%d / %d)\n", __FILE__, __LINE__, setup->wIndex, setup->wValue);
usb_err(dev, 0);
return;
case 0x0121: // DFU_DNLOAD
if (setup->wIndex > 0)
{
printf("%s:%d dfu download descriptor index invalid (%d / %d)\n", __FILE__, __LINE__, setup->wIndex, setup->wValue);
usb_err(dev, 0);
return;
}
// Data comes in the OUT phase. But if it's a zero-length request, handle it now.
if (setup->wLength == 0)
{
if (!dfu_download(setup->wValue, 0, 0, 0, NULL))
{
usb_err(dev, 0);
return;
}
usb_ack(dev, 0);
return;
}
unsigned int len = setup->wLength;
if (len > sizeof(rx_buffer))
len = sizeof(rx_buffer);
usb_recv(dev, rx_buffer, len);
return;
case 0x03a1: // DFU_GETSTATUS
if (setup->wIndex > 0)
{
printf("%s:%d err (%d / %d)\n", __FILE__, __LINE__, setup->wIndex, setup->wValue);
usb_err(dev, 0);
return;
}
if (dfu_getstatus(reply_buffer))
{
data = reply_buffer;
datalen = 6;
break;
}
else
{
printf("%s:%d err (%d / %d)\n", __FILE__, __LINE__, setup->wIndex, setup->wValue);
usb_err(dev, 0);
return;
}
break;
case 0x0421: // DFU_CLRSTATUS
if (setup->wIndex > 0)
{
printf("%s:%d err (%d / %d)\n", __FILE__, __LINE__, setup->wIndex, setup->wValue);
usb_err(dev, 0);
return;
}
if (dfu_clrstatus())
{
break;
}
else
{
printf("%s:%d err (%d / %d)\n", __FILE__, __LINE__, setup->wIndex, setup->wValue);
usb_err(dev, 0);
return;
}
case 0x05a1: // DFU_GETSTATE
if (setup->wIndex > 0)
{
printf("%s:%d err (%d / %d)\n", __FILE__, __LINE__, setup->wIndex, setup->wValue);
usb_err(dev, 0);
return;
}
reply_buffer[0] = dfu_getstate();
data = reply_buffer;
datalen = 1;
break;
case 0x0621: // DFU_ABORT
if (setup->wIndex > 0)
{
printf("%s:%d err (%d / %d)\n", __FILE__, __LINE__, setup->wIndex, setup->wValue);
usb_err(dev, 0);
return;
}
if (dfu_abort())
{
break;
}
else
{
printf("%s:%d err (%d / %d)\n", __FILE__, __LINE__, setup->wIndex, setup->wValue);
usb_err(dev, 0);
return;
}
default:
printf("%s:%d unrecognized request type (%04x) value: %02x index: %02x\n", __FILE__, __LINE__, setup->wRequestAndType, setup->wIndex, setup->wValue);
usb_err(dev, 0);
return;
}
send:
if (data && datalen) {
if (datalen > setup->wLength)
datalen = setup->wLength;
usb_send(dev, 0, data, datalen);
}
else
usb_ack(dev, 0);
return;
}
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