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Diffstat (limited to 'board/twinkie/injector.h')
| -rw-r--r-- | board/twinkie/injector.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/board/twinkie/injector.h b/board/twinkie/injector.h new file mode 100644 index 0000000000..0e360a2fdc --- /dev/null +++ b/board/twinkie/injector.h @@ -0,0 +1,79 @@ +/* Copyright (c) 2014 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 __INJECTOR_H +#define __INJECTOR_H + +/* + * Finite state machine definition for sending complex sequences + * + * the 32-bit commands have the following definition : + * [31:28] [27:0] + * Command arg + * INJ_CMD_x + * [27:16] [15:0] + * arg12 arg0 + * [27:24] [23:16] [15:0] + * arg2 arg1 arg0 + */ + +/* Macros to extract values from FSM command words */ +#define INJ_CMD(w) ((w) >> 28) +#define INJ_ARG(w) ((w) & 0x0FFFFFFF) +#define INJ_ARG0(w) ((w) & 0x0000FFFF) +#define INJ_ARG1(w) (((w) >> 16) & 0xFF) +#define INJ_ARG2(w) (((w) >> 24) & 0xF) +#define INJ_ARG12(w) (((w) >> 16) & 0xFFF) + +enum inj_cmd { + INJ_CMD_END = 0x0, /* stop the FSM */ + INJ_CMD_SEND = 0x1, /* Send message on CCx */ + /* arg0: header arg1/2:payload index/count */ + INJ_CMD_WAVE = 0x2, /* Send arbitrary waveform */ + /* stored at index arg1 of len arg0 */ + INJ_CMD_HRST = 0x3, /* Send Hard Reset on CCx */ + INJ_CMD_WAIT = 0x4, /* Wait for arg12 edges if arg12 != 0 */ + /* and timeout after arg0 ms */ + INJ_CMD_GET = 0x5, /* Get parameter arg1 (INJ_GET_x) at index arg0 */ + INJ_CMD_SET = 0x6, /* Set parameter arg1 (INJ_SET_x) with arg0 */ + INJ_CMD_JUMP = 0x8, /* Jump to index (as arg0) */ + INJ_CMD_NOP = 0xF, /* No-Operation */ +}; + +enum inj_set { + INJ_SET_RESISTOR1 = 0, /* CC1 resistor as arg0 (INJ_RES_x) */ + INJ_SET_RESISTOR2 = 1, /* CC2 resistor as arg0 (INJ_RES_x) */ + INJ_SET_RECORD = 2, /* Recording on/off */ + INJ_SET_TX_SPEED = 3, /* TX frequency is arg0 kHz */ + INJ_SET_RX_THRESH = 4, /* RX voltage threshold is arg0 mV */ + INJ_SET_POLARITY = 5, /* Polarity for other operations (INJ_POL_CC) */ +}; + +enum inj_get { + INJ_GET_CC = 0, /* CC1/CC2 voltages in mV */ + INJ_GET_VBUS = 1, /* VBUS voltage in mV and current in mA */ + INJ_GET_VCONN = 2, /* VCONN voltage in mV and current in mA */ + INJ_GET_POLARITY = 3, /* Current polarity (INJ_POL_CC) */ +}; + +enum inj_res { + INJ_RES_NONE = 0, + INJ_RES_RA = 1, + INJ_RES_RD = 2, + INJ_RES_RPUSB = 3, + INJ_RES_RP1A5 = 4, + INJ_RES_RP3A0 = 5, +}; + +enum inj_pol { + INJ_POL_CC1 = 0, + INJ_POL_CC2 = 1, + INJ_POL_AUTO = 0xffff, +}; + +/* Number of words in the FSM command/data buffer */ +#define INJ_CMD_COUNT 128 + +#endif /* __INJECTOR_H */ |