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Scan descriptor rather than elying on hardcoded endpoint number

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2010-08-20 16:34:34 +02:00
parent a17e3c978b
commit 9ba74de61a
2 changed files with 33 additions and 2 deletions
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14
include/grub/usb.h
View file

@ -181,6 +181,20 @@ struct grub_usb_device
typedef enum grub_usb_ep_type
{
GRUB_USB_EP_CONTROL,
GRUB_USB_EP_ISOCHRONOUS,
GRUB_USB_EP_BULK,
GRUB_USB_EP_INTERRUPT
} grub_usb_ep_type_t;
static inline enum grub_usb_ep_type
grub_usb_get_ep_type (struct grub_usb_desc_endp *ep)
{
return ep->attrib & 3;
}
typedef enum
{
GRUB_USB_CLASS_NOTHERE,

21
term/usb_keyboard.c
View file

@ -83,6 +83,7 @@ struct grub_usb_keyboard_data
grub_usb_device_t usbdev;
grub_uint8_t status;
int key;
struct grub_usb_desc_endp *endp;
};
static struct grub_term_input grub_usb_keyboards[16];
@ -109,6 +110,8 @@ grub_usb_keyboard_attach (grub_usb_device_t usbdev, int configno, int interfno)
{
unsigned curnum;
struct grub_usb_keyboard_data *data;
struct grub_usb_desc_endp *endp = NULL;
int j;
grub_dprintf ("usb_keyboard", "%x %x %x %d %d\n",
usbdev->descdev.class, usbdev->descdev.subclass,
@ -131,6 +134,18 @@ grub_usb_keyboard_attach (grub_usb_device_t usbdev, int configno, int interfno)
!= USB_HID_KBD_PROTOCOL)
return 0;
for (j = 0; j < usbdev->config[configno].interf[interfno].descif->endpointcnt;
j++)
{
endp = &usbdev->config[configno].interf[interfno].descendp[j];
if ((endp->endp_addr & 128) && grub_usb_get_ep_type(endp)
== GRUB_USB_EP_INTERRUPT)
break;
}
if (j == usbdev->config[configno].interf[interfno].descif->endpointcnt)
return 0;
grub_printf ("HID found!\n");
data = grub_malloc (sizeof (*data));
@ -141,6 +156,7 @@ grub_usb_keyboard_attach (grub_usb_device_t usbdev, int configno, int interfno)
}
data->usbdev = usbdev;
data->endp = endp;
/* Place the device in boot mode. */
grub_usb_control_msg (usbdev, GRUB_USB_REQTYPE_CLASS_INTERFACE_OUT,
@ -201,8 +217,9 @@ grub_usb_keyboard_checkkey (struct grub_term_input *term)
data[2] = 0;
/* Poll interrupt pipe. */
err = grub_usb_bulk_read_extended (termdata->usbdev, 1, sizeof (data),
(char *) data, 1, &actual);
err = grub_usb_bulk_read_extended (termdata->usbdev,
termdata->endp->endp_addr, sizeof (data),
(char *) data, 10, &actual);
if (err)
return -1;