Use GetReport only at initialisation as specified in the USBHID spec
This commit is contained in:
Vladimir 'phcoder' Serbinenko
parent
537f375321
commit
a17e3c978b
1 changed files with 73 additions and 160 deletions
|
|
@ -78,6 +78,13 @@ static struct grub_term_input grub_usb_keyboard_term =
|
|||
.next = 0
|
||||
};
|
||||
|
||||
struct grub_usb_keyboard_data
|
||||
{
|
||||
grub_usb_device_t usbdev;
|
||||
grub_uint8_t status;
|
||||
int key;
|
||||
};
|
||||
|
||||
static struct grub_term_input grub_usb_keyboards[16];
|
||||
|
||||
static void
|
||||
|
|
@ -92,6 +99,7 @@ grub_usb_keyboard_detach (grub_usb_device_t usbdev,
|
|||
grub_term_unregister_input (&grub_usb_keyboards[i]);
|
||||
grub_free ((char *) grub_usb_keyboards[i].name);
|
||||
grub_usb_keyboards[i].name = NULL;
|
||||
grub_free (grub_usb_keyboards[i].data);
|
||||
grub_usb_keyboards[i].data = 0;
|
||||
}
|
||||
}
|
||||
|
|
@ -100,6 +108,7 @@ static int
|
|||
grub_usb_keyboard_attach (grub_usb_device_t usbdev, int configno, int interfno)
|
||||
{
|
||||
unsigned curnum;
|
||||
struct grub_usb_keyboard_data *data;
|
||||
|
||||
grub_dprintf ("usb_keyboard", "%x %x %x %d %d\n",
|
||||
usbdev->descdev.class, usbdev->descdev.subclass,
|
||||
|
|
@ -112,13 +121,6 @@ grub_usb_keyboard_attach (grub_usb_device_t usbdev, int configno, int interfno)
|
|||
if (curnum == ARRAY_SIZE (grub_usb_keyboards))
|
||||
return 0;
|
||||
|
||||
#if 0
|
||||
if (descdev->class != 0x09
|
||||
|| descdev->subclass == 0x01
|
||||
|| descdev->protocol != 0x02)
|
||||
return 0;
|
||||
#endif
|
||||
|
||||
if (usbdev->descdev.class != 0
|
||||
|| usbdev->descdev.subclass != 0 || usbdev->descdev.protocol != 0)
|
||||
return 0;
|
||||
|
|
@ -131,6 +133,15 @@ grub_usb_keyboard_attach (grub_usb_device_t usbdev, int configno, int interfno)
|
|||
|
||||
grub_printf ("HID found!\n");
|
||||
|
||||
data = grub_malloc (sizeof (*data));
|
||||
if (!data)
|
||||
{
|
||||
grub_print_error ();
|
||||
return 0;
|
||||
}
|
||||
|
||||
data->usbdev = usbdev;
|
||||
|
||||
/* Place the device in boot mode. */
|
||||
grub_usb_control_msg (usbdev, GRUB_USB_REQTYPE_CLASS_INTERFACE_OUT,
|
||||
USB_HID_SET_PROTOCOL, 0, 0, 0, 0);
|
||||
|
|
@ -141,51 +152,64 @@ grub_usb_keyboard_attach (grub_usb_device_t usbdev, int configno, int interfno)
|
|||
|
||||
grub_memcpy (&grub_usb_keyboards[curnum], &grub_usb_keyboard_term,
|
||||
sizeof (grub_usb_keyboards[curnum]));
|
||||
grub_usb_keyboards[curnum].data = usbdev;
|
||||
grub_usb_keyboards[curnum].data = data;
|
||||
usbdev->config[configno].interf[interfno].detach_hook
|
||||
= grub_usb_keyboard_detach;
|
||||
grub_usb_keyboards[curnum].name = grub_xasprintf ("usb_keyboard%d", curnum);
|
||||
if (!grub_usb_keyboards[curnum].name)
|
||||
return 0;
|
||||
{
|
||||
grub_print_error ();
|
||||
return 0;
|
||||
}
|
||||
|
||||
{
|
||||
grub_uint8_t report[8];
|
||||
grub_usb_err_t err;
|
||||
grub_memset (report, 0, sizeof (report));
|
||||
err = grub_usb_control_msg (usbdev, GRUB_USB_REQTYPE_CLASS_INTERFACE_IN,
|
||||
USB_HID_GET_REPORT, 0x0000, interfno,
|
||||
sizeof (report), (char *) report);
|
||||
if (err)
|
||||
{
|
||||
data->status = 0;
|
||||
data->key = -1;
|
||||
}
|
||||
else
|
||||
{
|
||||
data->status = report[0];
|
||||
data->key = report[2] ? : -1;
|
||||
}
|
||||
}
|
||||
|
||||
grub_term_register_input_active ("usb_keyboard", &grub_usb_keyboards[curnum]);
|
||||
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
static grub_err_t
|
||||
grub_usb_keyboard_getreport (grub_usb_device_t dev, grub_uint8_t *report)
|
||||
{
|
||||
return grub_usb_control_msg (dev, GRUB_USB_REQTYPE_CLASS_INTERFACE_IN,
|
||||
USB_HID_GET_REPORT, 0x0100, 0, 8, (char *) report);
|
||||
}
|
||||
|
||||
|
||||
|
||||
static int
|
||||
grub_usb_keyboard_checkkey (struct grub_term_input *term)
|
||||
{
|
||||
grub_uint8_t data[8];
|
||||
int key;
|
||||
grub_err_t err;
|
||||
grub_uint64_t currtime;
|
||||
int timeout = 50;
|
||||
grub_usb_device_t usbdev = term->data;
|
||||
grub_usb_err_t err;
|
||||
struct grub_usb_keyboard_data *termdata = term->data;
|
||||
grub_size_t actual;
|
||||
|
||||
if (termdata->key != -1)
|
||||
return termdata->key;
|
||||
|
||||
data[2] = 0;
|
||||
currtime = grub_get_time_ms ();
|
||||
do
|
||||
{
|
||||
/* Get_Report. */
|
||||
err = grub_usb_keyboard_getreport (usbdev, data);
|
||||
/* Poll interrupt pipe. */
|
||||
err = grub_usb_bulk_read_extended (termdata->usbdev, 1, sizeof (data),
|
||||
(char *) data, 1, &actual);
|
||||
|
||||
/* Implement a timeout. */
|
||||
if (grub_get_time_ms () > currtime + timeout)
|
||||
break;
|
||||
}
|
||||
while (err || !data[2]);
|
||||
if (err)
|
||||
return -1;
|
||||
|
||||
if (err || !data[2])
|
||||
termdata->status = data[0];
|
||||
|
||||
if (actual < 3 || !data[2])
|
||||
return -1;
|
||||
|
||||
grub_dprintf ("usb_keyboard",
|
||||
|
|
@ -196,161 +220,50 @@ grub_usb_keyboard_checkkey (struct grub_term_input *term)
|
|||
|
||||
/* Check if the Control or Shift key was pressed. */
|
||||
if (data[0] & 0x01 || data[0] & 0x10)
|
||||
key = keyboard_map[data[2]] - 'a' + 1;
|
||||
termdata->key = keyboard_map[data[2]] - 'a' + 1;
|
||||
else if (data[0] & 0x02 || data[0] & 0x20)
|
||||
key = keyboard_map_shift[data[2]];
|
||||
termdata->key = keyboard_map_shift[data[2]];
|
||||
else
|
||||
key = keyboard_map[data[2]];
|
||||
termdata->key = keyboard_map[data[2]];
|
||||
|
||||
if (key == 0)
|
||||
if (termdata->key == 0)
|
||||
grub_printf ("Unknown key 0x%x detected\n", data[2]);
|
||||
|
||||
#if 0
|
||||
/* Wait until the key is released. */
|
||||
while (!err && data[2])
|
||||
{
|
||||
err = grub_usb_control_msg (usbdev, GRUB_USB_REQTYPE_CLASS_INTERFACE_IN,
|
||||
USB_HID_GET_REPORT, 0, 0,
|
||||
sizeof (data), (char *) data);
|
||||
grub_dprintf ("usb_keyboard",
|
||||
"report2: 0x%02x 0x%02x 0x%02x 0x%02x"
|
||||
" 0x%02x 0x%02x 0x%02x 0x%02x\n",
|
||||
data[0], data[1], data[2], data[3],
|
||||
data[4], data[5], data[6], data[7]);
|
||||
}
|
||||
#endif
|
||||
|
||||
grub_errno = GRUB_ERR_NONE;
|
||||
|
||||
return key;
|
||||
return termdata->key;
|
||||
}
|
||||
|
||||
typedef enum
|
||||
{
|
||||
GRUB_HIDBOOT_REPEAT_NONE,
|
||||
GRUB_HIDBOOT_REPEAT_FIRST,
|
||||
GRUB_HIDBOOT_REPEAT
|
||||
} grub_usb_keyboard_repeat_t;
|
||||
|
||||
static int
|
||||
grub_usb_keyboard_getkey (struct grub_term_input *term)
|
||||
{
|
||||
int key;
|
||||
grub_err_t err;
|
||||
grub_uint8_t data[8];
|
||||
grub_uint64_t currtime;
|
||||
int timeout;
|
||||
static grub_usb_keyboard_repeat_t repeat = GRUB_HIDBOOT_REPEAT_NONE;
|
||||
grub_usb_device_t usbdev = term->data;
|
||||
int ret;
|
||||
struct grub_usb_keyboard_data *termdata = term->data;
|
||||
|
||||
again:
|
||||
while (termdata->key == -1)
|
||||
grub_usb_keyboard_checkkey (term);
|
||||
|
||||
do
|
||||
{
|
||||
key = grub_usb_keyboard_checkkey (term);
|
||||
} while (key == -1);
|
||||
ret = termdata->key;
|
||||
|
||||
data[2] = !0; /* Or whatever. */
|
||||
err = 0;
|
||||
termdata->key = -1;
|
||||
|
||||
switch (repeat)
|
||||
{
|
||||
case GRUB_HIDBOOT_REPEAT_FIRST:
|
||||
timeout = 500;
|
||||
break;
|
||||
case GRUB_HIDBOOT_REPEAT:
|
||||
timeout = 50;
|
||||
break;
|
||||
default:
|
||||
timeout = 100;
|
||||
break;
|
||||
}
|
||||
|
||||
/* Wait until the key is released. */
|
||||
currtime = grub_get_time_ms ();
|
||||
while (!err && data[2])
|
||||
{
|
||||
/* Implement a timeout. */
|
||||
if (grub_get_time_ms () > currtime + timeout)
|
||||
{
|
||||
if (repeat == 0)
|
||||
repeat = 1;
|
||||
else
|
||||
repeat = 2;
|
||||
|
||||
grub_errno = GRUB_ERR_NONE;
|
||||
return key;
|
||||
}
|
||||
|
||||
err = grub_usb_keyboard_getreport (usbdev, data);
|
||||
}
|
||||
|
||||
if (repeat)
|
||||
{
|
||||
repeat = 0;
|
||||
goto again;
|
||||
}
|
||||
|
||||
repeat = 0;
|
||||
|
||||
grub_errno = GRUB_ERR_NONE;
|
||||
|
||||
return key;
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int
|
||||
grub_usb_keyboard_getkeystatus (struct grub_term_input *term)
|
||||
{
|
||||
grub_uint8_t data[8];
|
||||
struct grub_usb_keyboard_data *termdata = term->data;
|
||||
int mods = 0;
|
||||
grub_err_t err;
|
||||
grub_uint64_t currtime;
|
||||
int timeout = 50;
|
||||
grub_usb_device_t usbdev = term->data;
|
||||
|
||||
/* Set idle time to the minimum offered by the spec (4 milliseconds) so
|
||||
that we can find out the current state. */
|
||||
grub_usb_control_msg (usbdev, GRUB_USB_REQTYPE_CLASS_INTERFACE_OUT,
|
||||
USB_HID_SET_IDLE, 0<<8, 0, 0, 0);
|
||||
|
||||
currtime = grub_get_time_ms ();
|
||||
do
|
||||
{
|
||||
/* Get_Report. */
|
||||
err = grub_usb_keyboard_getreport (usbdev, data);
|
||||
|
||||
/* Implement a timeout. */
|
||||
if (grub_get_time_ms () > currtime + timeout)
|
||||
break;
|
||||
}
|
||||
while (err || !data[0]);
|
||||
|
||||
/* Go back to reporting every time an event occurs and not more often than
|
||||
that. */
|
||||
grub_usb_control_msg (usbdev, GRUB_USB_REQTYPE_CLASS_INTERFACE_OUT,
|
||||
USB_HID_SET_IDLE, 0<<8, 0, 0, 0);
|
||||
|
||||
/* We allowed a while for modifiers to show up in the report, but it is
|
||||
not an error if they never did. */
|
||||
if (err)
|
||||
return -1;
|
||||
|
||||
grub_dprintf ("usb_keyboard",
|
||||
"report: 0x%02x 0x%02x 0x%02x 0x%02x"
|
||||
" 0x%02x 0x%02x 0x%02x 0x%02x\n",
|
||||
data[0], data[1], data[2], data[3],
|
||||
data[4], data[5], data[6], data[7]);
|
||||
|
||||
/* Check Shift, Control, and Alt status. */
|
||||
if (data[0] & 0x02 || data[0] & 0x20)
|
||||
if (termdata->status & 0x02 || termdata->status & 0x20)
|
||||
mods |= GRUB_TERM_STATUS_SHIFT;
|
||||
if (data[0] & 0x01 || data[0] & 0x10)
|
||||
if (termdata->status & 0x01 || termdata->status & 0x10)
|
||||
mods |= GRUB_TERM_STATUS_CTRL;
|
||||
if (data[0] & 0x04 || data[0] & 0x40)
|
||||
if (termdata->status & 0x04 || termdata->status & 0x40)
|
||||
mods |= GRUB_TERM_STATUS_ALT;
|
||||
|
||||
grub_errno = GRUB_ERR_NONE;
|
||||
|
||||
return mods;
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue