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ec/google/chromeec: Add host command EC_CMD_GET_KEYBD_CONFIG 

Add command to query the EC for the keyboard layout. Also
add supporting data structures for the exchange.

Signed-off-by: Rajat Jain <rajatja@google.com>
Change-Id: I26aff6dd0e701e0cecb3b66bc54c5a23688f0109
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40030
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This commit is contained in:
Rajat Jain 2020-04-02 23:58:35 -07:00 committed by Furquan Shaikh
parent 74bee3c8ad
commit c049572385
1 changed files with 77 additions and 0 deletions
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77
src/ec/google/chromeec/ec_commands.h
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@ -6079,6 +6079,83 @@ enum keyboard_button_type {
KEYBOARD_BUTTON_COUNT
};
/*****************************************************************************/
/*
* "Get the Keyboard Config". An EC implementing this command is expected to be
* vivaldi capable, i.e. can send action codes for the top row keys.
* Additionally, capability to send function codes for the same keys is
* optional and acceptable.
*
* Note: If the top row can generate both function and action codes by
* using a dedicated Fn key, it does not matter whether the key sends
* "function" or "action" codes by default. In both cases, the response
* for this command will look the same.
*/
#define EC_CMD_GET_KEYBD_CONFIG 0x012A
/* Possible values for the top row keys */
enum action_key {
TK_ABSENT = 0,
TK_BACK = 1,
TK_FORWARD = 2,
TK_REFRESH = 3,
TK_FULLSCREEN = 4,
TK_OVERVIEW = 5,
TK_BRIGHTNESS_DOWN = 6,
TK_BRIGHTNESS_UP = 7,
TK_VOL_MUTE = 8,
TK_VOL_DOWN = 9,
TK_VOL_UP = 10,
TK_SNAPSHOT = 11,
TK_PRIVACY_SCRN_TOGGLE = 12,
TK_KBD_BKLIGHT_DOWN = 13,
TK_KBD_BKLIGHT_UP = 14,
TK_PLAY_PAUSE = 15,
TK_NEXT_TRACK = 16,
TK_PREV_TRACK = 17,
};
/*
* Max & Min number of top row keys, excluding Esc and Screenlock keys.
* If this needs to change, please create a new version of the command.
*/
#define MAX_TOP_ROW_KEYS 15
#define MIN_TOP_ROW_KEYS 10
/*
* Is the keyboard capable of sending function keys *in addition to*
* action keys. This is possible for e.g. if the keyboard has a
* dedicated Fn key.
*/
#define KEYBD_CAP_FUNCTION_KEYS BIT(0)
/*
* Whether the keyboard has a dedicated numeric keyboard.
*/
#define KEYBD_CAP_NUMERIC_KEYPAD BIT(1)
/*
* Whether the keyboard has a screenlock key.
*/
#define KEYBD_CAP_SCRNLOCK_KEY BIT(2)
struct ec_response_keybd_config {
/*
* Number of top row keys, excluding Esc and Screenlock.
* If this is 0, all Vivaldi keyboard code is disabled.
* (i.e. does not expose any tables to the kernel).
*/
uint8_t num_top_row_keys;
/*
* The action keys in the top row, in order from left to right.
* The values are filled from enum action_key. Esc and Screenlock
* keys are not considered part of top row keys.
*/
uint8_t action_keys[MAX_TOP_ROW_KEYS];
/* Capability flags */
uint8_t capabilities;
} __ec_align1;
/*****************************************************************************/
/* The command range 0x200-0x2FF is reserved for Rotor. */