summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorPatrick Rudolph <siro@das-labor.org>2017-03-06 18:37:00 +0100
committerMartin Roth <martinroth@google.com>2018-05-31 15:28:24 +0000
commit1f5ebf7c8b1cf1724524b02900c230961f039370 (patch)
tree2c803f44e6f724159c96161d87c79ec69db28b0d
parent9aaf59aa6dc428fe7c405c479ec008f75306a30c (diff)
downloadcoreboot-1f5ebf7c8b1cf1724524b02900c230961f039370.tar.xz
libpayload: Export usbhid_getmodifiers
Add a new method to retrieve active usb keyboard modifiers. Change-Id: Ief6679ce782b58b9ced207f4f27504fb2a517b76 Signed-off-by: Patrick Rudolph <siro@das-labor.org> Reviewed-on: https://review.coreboot.org/18602 Reviewed-by: Martin Roth <martinroth@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
-rw-r--r--payloads/libpayload/drivers/usb/usbhid.c29
-rw-r--r--payloads/libpayload/include/libpayload.h1
2 files changed, 18 insertions, 12 deletions
diff --git a/payloads/libpayload/drivers/usb/usbhid.c b/payloads/libpayload/drivers/usb/usbhid.c
index 68130f80b0..67aebb2ffd 100644
--- a/payloads/libpayload/drivers/usb/usbhid.c
+++ b/payloads/libpayload/drivers/usb/usbhid.c
@@ -87,6 +87,7 @@ usb_hid_destroy (usbdev_t *dev)
static int keycount;
#define KEYBOARD_BUFFER_SIZE 16
static short keybuffer[KEYBOARD_BUFFER_SIZE];
+static int modifiers;
const char *countries[36][2] = {
{ "not supported", "us" },
@@ -244,9 +245,6 @@ static const struct layout_maps keyboard_layouts[] = {
//#endif
};
-#define MOD_SHIFT (1 << 0)
-#define MOD_ALT (1 << 1)
-#define MOD_CTRL (1 << 2)
static void usb_hid_keyboard_queue(int ch) {
/* ignore key presses if buffer full */
@@ -264,15 +262,17 @@ usb_hid_process_keyboard_event(usbhid_inst_t *const inst,
{
const usb_hid_keyboard_event_t *const previous = &inst->previous;
- int i, keypress = 0, modifiers = 0;
+ int i, keypress = 0;
- if (current->modifiers & 0x01) /* Left-Ctrl */ modifiers |= MOD_CTRL;
- if (current->modifiers & 0x02) /* Left-Shift */ modifiers |= MOD_SHIFT;
- if (current->modifiers & 0x04) /* Left-Alt */ modifiers |= MOD_ALT;
+ modifiers = 0;
+
+ if (current->modifiers & 0x01) /* Left-Ctrl */ modifiers |= KB_MOD_CTRL;
+ if (current->modifiers & 0x02) /* Left-Shift */ modifiers |= KB_MOD_SHIFT;
+ if (current->modifiers & 0x04) /* Left-Alt */ modifiers |= KB_MOD_ALT;
if (current->modifiers & 0x08) /* Left-GUI */ ;
- if (current->modifiers & 0x10) /* Right-Ctrl */ modifiers |= MOD_CTRL;
- if (current->modifiers & 0x20) /* Right-Shift */ modifiers |= MOD_SHIFT;
- if (current->modifiers & 0x40) /* Right-AltGr */ modifiers |= MOD_ALT;
+ if (current->modifiers & 0x10) /* Right-Ctrl */ modifiers |= KB_MOD_CTRL;
+ if (current->modifiers & 0x20) /* Right-Shift */ modifiers |= KB_MOD_SHIFT;
+ if (current->modifiers & 0x40) /* Right-AltGr */ modifiers |= KB_MOD_ALT;
if (current->modifiers & 0x80) /* Right-GUI */ ;
if ((current->modifiers & 0x05) && ((current->keys[0] == 0x4c) ||
@@ -315,10 +315,10 @@ usb_hid_process_keyboard_event(usbhid_inst_t *const inst,
continue;
- /* Mask off MOD_CTRL */
+ /* Mask off KB_MOD_CTRL */
keypress = map->map[modifiers & 0x03][current->keys[i]];
- if (modifiers & MOD_CTRL) {
+ if (modifiers & KB_MOD_CTRL) {
switch (keypress) {
case 'a' ... 'z':
keypress &= 0x1f;
@@ -509,3 +509,8 @@ int usbhid_getchar (void)
return (int)ret;
}
+
+int usbhid_getmodifiers(void)
+{
+ return modifiers;
+}
diff --git a/payloads/libpayload/include/libpayload.h b/payloads/libpayload/include/libpayload.h
index c6b9447dfb..e74006a90f 100644
--- a/payloads/libpayload/include/libpayload.h
+++ b/payloads/libpayload/include/libpayload.h
@@ -141,6 +141,7 @@ int usb_initialize(void);
int usb_exit (void);
int usbhid_havechar(void);
int usbhid_getchar(void);
+int usbhid_getmodifiers(void);
/** @} */
/**