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#include "project.h"
#define KEY_LIST_LEN 6
static const uint8_t keyboard_report_descriptor[] = {
0x05, 0x01, /* Usage Page (Generic Desktop) */
0x09, 0x06, /* Usage (Keyboard) */
0xA1, 0x01, /* Collection (Application) */
0x05, 0x07, /* Usage page (Key Codes) */
0x19, 0xE0, /* Usage minimum (224) */
0x29, 0xE7, /* Usage maximum (231) */
0x15, 0x00, /* Logical minimum (0) */
0x25, 0x01, /* Logical maximum (1) */
0x75, 0x01, /* Report size (1) */
0x95, 0x08, /* Report count (8) */
0x81, 0x02, /* Input (data, variable, absolute) */
0x95, 0x01, /* Report count (1) */
0x75, 0x08, /* Report size (8) */
0x81, 0x01, /* Input (constant) */
0x95, 0x06, /* Report count (6) */
0x75, 0x08, /* Report size (8) */
0x15, 0x00, /* Logical minimum (0) */
//0x25, 0x65, /* Logical maximum (101) */
0x26, 0xff, 0x00, /* Logical maximum (255) */
//0x26, 0x7f, 0x00, /* Logical maximum (255) */
0x05, 0x07, /* Usage page (key codes) */
0x19, 0x00, /* Usage minimum (0) */
0x2A, 0xff, 0x00, /* Usage maximum (255) */
// 0x29, 0x65, /* Usage maximum (101) */
// 0x2A, 0xff, 0x03, /* Usage maximum (1023) */
0x81, 0x00, /* Input (data, array) */
0x05, 0x08, /* Usage page (leds) */
0x75, 0x01, /* Report size (1) */
0x95, 0x03, /* Report count (3) */
0x19, 0x01, /* Usage minimum (1) */
0x29, 0x03, /* Usage maximum (3) */
0x91, 0x02, /* Output (data, variable, absolute ) */
0x75, 0x05, /* Report size (5) */
0x95, 0x01, /* Report count (1) */
0x91, 0x01, /* Output (constant ) */
0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
0x09, 0x80, /* USAGE (System Control) */
0xA1, 0x01, /* COLLECTION (Application) */
0x75, 0x02, /* REPORT_SIZE (2) */
0x95, 0x01, /* REPORT_COUNT (1) */
0x15, 0x01, /* LOGICAL_MIN (1) */
0x25, 0x03, /* LOGICAL_MAX (3) */
0x09, 0x82, /* USAGE (System Sleep) */
0x09, 0x81, /* USAGE (System Power Down) */
0x09, 0x83, /* USAGE (System Wake Up) */
0x81, 0x60, /* INPUT (Data Ary Abs NPrf Null) */
0x75, 0x06, /* REPORT_SIZE (6) */
0x81, 0x03, /* INPUT (Cnst Var Abs) */
0xc0, /* END COLLECTION */
0xC0 /* End Collection */
};
static const struct
{
struct usb_hid_descriptor hid_descriptor;
struct
{
uint8_t bReportDescriptorType;
uint16_t wDescriptorLength;
} __attribute__ ((packed)) hid_report;
} __attribute__ ((packed)) keyboard_function =
{
.hid_descriptor =
{
.bLength = sizeof (keyboard_function),.bDescriptorType =
USB_DT_HID,.bcdHID = 0x0100,.bCountryCode = 0,.bNumDescriptors = 1,}
,.hid_report =
{
.bReportDescriptorType = USB_DT_REPORT,.wDescriptorLength =
sizeof (keyboard_report_descriptor),}
,};
const struct usb_endpoint_descriptor keyboard_endpoint = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = KEYBOARD_EP,
.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
.wMaxPacketSize = 9,
.bInterval = 0x1 //0x20,
};
const struct usb_interface_descriptor keyboard_iface = {
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
.bInterfaceNumber = 0,
.bAlternateSetting = 0,
.bNumEndpoints = 1,
.bInterfaceClass = USB_CLASS_HID,
.bInterfaceSubClass = 1, /* boot */
.bInterfaceProtocol = 1, /* keyboard */
.iInterface = 5,
.endpoint = &keyboard_endpoint,
.extra = &keyboard_function,
.extralen = sizeof (keyboard_function),
};
void
keyboard_get_descriptor (uint8_t ** buf, uint16_t * len)
{
/* Handle the HID report descriptor. */
*buf = (uint8_t *) keyboard_report_descriptor;
*len = sizeof (keyboard_report_descriptor);
}
static void
keyboard_send (uint8_t modifiers, uint8_t * key_list)
{
/*Last byte is the power wakeup stuff that we don't yet support */
uint8_t buf[KEYBOARD_EP_TXN_SIZE] =
{ modifiers, 0, key_list[0], key_list[1], key_list[2], key_list[3],
key_list[4], key_list[5], 0 };
usbd_ep_write_packet (usbd_dev, KEYBOARD_EP, buf, sizeof (buf));
}
void
keyboard_dispatch (int sc, int updown)
{
static uint8_t modifiers;
static uint8_t key_list[KEY_LIST_LEN];
int i;
/*Windows needs the modifiers spliting out, so we do this as per our
* descriptor, others need them in the list so we do that as well */
switch (sc)
{
case USB_K_SC_LEFTCTRL:
case USB_K_SC_LEFTSHIFT:
case USB_K_SC_LEFTALT:
case USB_K_SC_LEFTMETA:
case USB_K_SC_RIGHTCTRL:
case USB_K_SC_RIGHTSHIFT:
case USB_K_SC_RIGHTALT:
case USB_K_SC_RIGHTMETA:
if (updown)
modifiers |= 1 << (sc - USB_K_SC_LEFTCTRL);
else
modifiers &= ~(1 << (sc - USB_K_SC_LEFTCTRL));
}
/* Some oses are picky and need these not to move about so we make
* a list of the down keys */
if (updown)
{
for (i = 0; i < KEY_LIST_LEN; ++i)
{
if ((key_list[i] == 0) || (key_list[i] == sc))
{
key_list[i] = sc;
break;
}
}
}
else
{
for (i = 0; i < KEY_LIST_LEN; ++i)
{
if (key_list[i] == sc)
{
key_list[i] = 0;
break;
}
}
}
#ifdef DEBUG
printf ("KBD> %02x %02x %02x %02x %02x %02x %02x\r\n", modifiers,
key_list[0], key_list[1], key_list[2], key_list[3], key_list[4],
key_list[5]);
#endif
keyboard_send (modifiers, key_list);
}
int
keyboard_control_request (usbd_device * usbd_dev, struct usb_setup_data *req,
uint8_t ** buf, uint16_t * len,
void (**complete) (usbd_device * usbd_dev,
struct usb_setup_data * req))
{
uint8_t at_leds = 0;
if (req->bmRequestType != (USB_REQ_TYPE_CLASS | USB_REQ_TYPE_INTERFACE))
return 0;
if (req->bRequest != USB_REQ_SET_CONFIGURATION)
return 0;
if (req->wValue != 0x200)
return 0;
if (req->wIndex)
return 0;
if (!len)
return 0;
if (*len != 1)
return 0;
if (!buf || !*buf)
return 0;
if (**buf & USB_LED_CAPS)
at_leds |= AT_LED_CAPS;
if (**buf & USB_LED_NUMLOCK)
at_leds |= AT_LED_NUMLOCK;
if (**buf & USB_LED_SCROLLLOCK)
at_leds |= AT_LED_SCROLLLOCK;
#ifdef DEBUG
printf ("LEDS> %x\r\n", at_leds);
#endif
atkbd_set_leds (at_leds);
return 1;
}
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