Prevent direct i2c access to device behind EC when not in development mode.
Unified · Split
| @@ -4316,6 +4316,28 @@ struct ec_params_entering_mode { · 4315 unmodified lines | ||
| 4316 | 4316 | #define VBOOT_MODE_DEVELOPER 1 |
| 4317 | 4317 | #define VBOOT_MODE_RECOVERY 2 |
| 4318 | 4318 | |
| 4319 | +/*****************************************************************************/ | |
| 4320 | +/* | |
| 4321 | + * I2C passthru protection command: Protects I2C tunnels against access on | |
| 4322 | + * certain addresses (board-specific). | |
| 4323 | + */ | |
| 4324 | +#define EC_CMD_I2C_PASSTHRU_PROTECT 0x00B7 | |
| 4325 | + | |
| 4326 | +enum ec_i2c_passthru_protect_subcmd { | |
| 4327 | + EC_CMD_I2C_PASSTHRU_PROTECT_STATUS = 0x0, | |
| 4328 | + EC_CMD_I2C_PASSTHRU_PROTECT_ENABLE = 0x1, | |
| 4329 | +}; | |
| 4330 | + | |
| 4331 | +struct ec_params_i2c_passthru_protect { | |
| 4332 | + uint8_t subcmd; | |
| 4333 | + uint8_t port; /* I2C port number */ | |
| 4334 | +} __ec_align1; | |
| 4335 | + | |
| 4336 | +struct ec_response_i2c_passthru_protect { | |
| 4337 | + uint8_t status; /* Status flags (0: unlocked, 1: locked) */ | |
| 4338 | +} __ec_align1; | |
| 4339 | + | |
| 4340 | + | |
| 4319 | 4341 | /*****************************************************************************/ |
| 4320 | 4342 | /* |
| 4321 | 4343 | * HDMI CEC commands |