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Diffstat (limited to 'board/primus/ps2.h')
| -rw-r--r-- | board/primus/ps2.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/board/primus/ps2.h b/board/primus/ps2.h new file mode 100644 index 0000000000..0943d5ba4b --- /dev/null +++ b/board/primus/ps2.h @@ -0,0 +1,31 @@ +/* Copyright 2022 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#ifndef __CROS_EC_PRIMUS_PS2_H +#define __CROS_EC_PRIMUS_PS2_H + +/* Primus board-specific PS2 configuration */ +/* + * Valid first byte responses to the "Read Secondary ID" (0xE1) command. + * 0x01 was the original IBM trackpoint, others implement very limited + * subset of trackpoint features. + */ +#define TP_READ_ID 0xE1 /* Sent for device identification */ + +#define TP_COMMAND 0xE2 /* Commands start with this */ + +/* + * Toggling Flag bits + */ +#define TP_TOGGLE 0x47 /* Toggle command */ + +#define TP_VARIANT_ELAN 0x03 +#define TP_VARIANT_SYNAPTICS 0x06 +#define TP_TOGGLE_SOURCE_TAG 0x20 +#define TP_TOGGLE_BURST 0x28 +#define TP_TOGGLE_SNAPTICS_SLEEP 0x10 +#define TP_TOGGLE_ELAN_SLEEP 0x8 + +#endif /* __CROS_EC_PRIMUS_PS2_H */ |