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Abstracted USB driver interface to to allow driver selection.

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This commit is contained in:
Gareth McMullin
2011-01-30 17:04:56 +13:00
parent c11cdaf2a7
commit aac65d8560
10 changed files with 97 additions and 20 deletions
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37
lib/usb/usb.c
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@@ -42,9 +42,11 @@ u8 usbd_control_buffer[128] __attribute__((weak));
* @param strings TODO
* @return Zero on success (currently cannot fail).
*/
int usbd_init(const struct usb_device_descriptor *dev,
int usbd_init(const usbd_driver *driver,
const struct usb_device_descriptor *dev,
const struct usb_config_descriptor *conf, const char **strings)
{
_usbd_device.driver = driver;
_usbd_device.desc = dev;
_usbd_device.config = conf;
_usbd_device.strings = strings;
@@ -93,3 +95,36 @@ void _usbd_reset(void)
if (_usbd_device.user_callback_reset)
_usbd_device.user_callback_reset();
}
/* Functions to wrap the low-level driver */
void usbd_poll(void)
{
_usbd_device.driver->poll();
}
void usbd_ep_setup(u8 addr, u8 type, u16 max_size,
void (*callback)(u8 ep))
{
_usbd_device.driver->ep_setup(addr, type, max_size, callback);
}
u16 usbd_ep_write_packet(u8 addr, const void *buf, u16 len)
{
return _usbd_device.driver->ep_write_packet(addr, buf, len);
}
u16 usbd_ep_read_packet(u8 addr, void *buf, u16 len)
{
return _usbd_device.driver->ep_read_packet(addr, buf, len);
}
void usbd_ep_stall_set(u8 addr, u8 stall)
{
_usbd_device.driver->ep_stall_set(addr, stall);
}
u8 usbd_ep_stall_get(u8 addr)
{
return _usbd_device.driver->ep_stall_get(addr);
}