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/* SPDX-License-Identifier: GPL-2.0 */
/*
* CZ.NIC's Turris Omnia MCU I2C interface commands definitions
*
* 2023 by Marek Behún <kabel@kernel.org>
*/
#ifndef __TURRIS_OMNIA_MCU_INTERFACE_H
#define __TURRIS_OMNIA_MCU_INTERFACE_H
#include <linux/bitops.h>
enum omnia_commands_e {
CMD_GET_STATUS_WORD = 0x01, /* slave sends status word back */
CMD_GENERAL_CONTROL = 0x02,
CMD_LED_MODE = 0x03, /* default/user */
CMD_LED_STATE = 0x04, /* LED on/off */
CMD_LED_COLOR = 0x05, /* LED number + RED + GREEN + BLUE */
CMD_USER_VOLTAGE = 0x06,
CMD_SET_BRIGHTNESS = 0x07,
CMD_GET_BRIGHTNESS = 0x08,
CMD_GET_RESET = 0x09,
CMD_GET_FW_VERSION_APP = 0x0A, /* 20B git hash number */
CMD_SET_WATCHDOG_STATE = 0x0B, /* 0 - disable
* 1 - enable / ping
* after boot watchdog is started
* with 2 minutes timeout
*/
/* CMD_WATCHDOG_STATUS = 0x0C, not implemented anymore */
CMD_GET_WATCHDOG_STATE = 0x0D,
CMD_GET_FW_VERSION_BOOT = 0x0E, /* 20B git hash number */
CMD_GET_FW_CHECKSUM = 0x0F, /* 4B length, 4B checksum */
/* available if FEATURES_SUPPORTED bit set in status word */
CMD_GET_FEATURES = 0x10,
/* available if EXT_CMD bit set in features */
CMD_GET_EXT_STATUS_DWORD = 0x11,
CMD_EXT_CONTROL = 0x12,
CMD_GET_EXT_CONTROL_STATUS = 0x13,
/* available if NEW_INT_API bit set in features */
CMD_GET_INT_AND_CLEAR = 0x14,
CMD_GET_INT_MASK = 0x15,
CMD_SET_INT_MASK = 0x16,
/* available if FLASHING bit set in features */
CMD_FLASH = 0x19,
/* available if WDT_PING bit set in features */
CMD_SET_WDT_TIMEOUT = 0x20,
CMD_GET_WDT_TIMELEFT = 0x21,
/* available if POWEROFF_WAKEUP bit set in features */
CMD_SET_WAKEUP = 0x22,
CMD_GET_UPTIME_AND_WAKEUP = 0x23,
CMD_POWER_OFF = 0x24,
/* available if USB_OVC_PROT_SETTING bit set in features */
CMD_SET_USB_OVC_PROT = 0x25,
CMD_GET_USB_OVC_PROT = 0x26,
/* available if TRNG bit set in features */
CMD_TRNG_COLLECT_ENTROPY = 0x28,
/* available if CRYPTO bit set in features */
CMD_CRYPTO_GET_PUBLIC_KEY = 0x29,
CMD_CRYPTO_SIGN_MESSAGE = 0x2A,
CMD_CRYPTO_COLLECT_SIGNATURE = 0x2B,
/* available if BOARD_INFO it set in features */
CMD_BOARD_INFO_GET = 0x2C,
CMD_BOARD_INFO_BURN = 0x2D,
/* available only at address 0x2b (led-controller) */
/* available only if LED_GAMMA_CORRECTION bit set in features */
CMD_SET_GAMMA_CORRECTION = 0x30,
CMD_GET_GAMMA_CORRECTION = 0x31,
/* available only at address 0x2b (led-controller) */
/* available only if PER_LED_CORRECTION bit set in features */
/* available only if FROM_BIT_16_INVALID bit NOT set in features */
CMD_SET_LED_CORRECTIONS = 0x32,
CMD_GET_LED_CORRECTIONS = 0x33,
};
enum omnia_flashing_commands_e {
FLASH_CMD_UNLOCK = 0x01,
FLASH_CMD_SIZE_AND_CSUM = 0x02,
FLASH_CMD_PROGRAM = 0x03,
FLASH_CMD_RESET = 0x04,
};
enum omnia_sts_word_e {
STS_MCU_TYPE_MASK = GENMASK(1, 0),
STS_MCU_TYPE_STM32 = 0 << 0,
STS_MCU_TYPE_GD32 = 1 << 0,
STS_MCU_TYPE_MKL = 2 << 0,
STS_FEATURES_SUPPORTED = BIT(2),
STS_USER_REGULATOR_NOT_SUPPORTED = BIT(3),
STS_CARD_DET = BIT(4),
STS_MSATA_IND = BIT(5),
STS_USB30_OVC = BIT(6),
STS_USB31_OVC = BIT(7),
STS_USB30_PWRON = BIT(8),
STS_USB31_PWRON = BIT(9),
STS_ENABLE_4V5 = BIT(10),
STS_BUTTON_MODE = BIT(11),
STS_BUTTON_PRESSED = BIT(12),
STS_BUTTON_COUNTER_MASK = GENMASK(15, 13)
};
enum omnia_ctl_byte_e {
CTL_LIGHT_RST = BIT(0),
CTL_HARD_RST = BIT(1),
/* BIT(2) is currently reserved */
CTL_USB30_PWRON = BIT(3),
CTL_USB31_PWRON = BIT(4),
CTL_ENABLE_4V5 = BIT(5),
CTL_BUTTON_MODE = BIT(6),
CTL_BOOTLOADER = BIT(7)
};
enum omnia_features_e {
FEAT_PERIPH_MCU = BIT(0),
FEAT_EXT_CMDS = BIT(1),
FEAT_WDT_PING = BIT(2),
FEAT_LED_STATE_EXT_MASK = GENMASK(4, 3),
FEAT_LED_STATE_EXT = 1 << 3,
FEAT_LED_STATE_EXT_V32 = 2 << 3,
FEAT_LED_GAMMA_CORRECTION = BIT(5),
FEAT_NEW_INT_API = BIT(6),
FEAT_BOOTLOADER = BIT(7),
FEAT_FLASHING = BIT(8),
FEAT_NEW_MESSAGE_API = BIT(9),
FEAT_BRIGHTNESS_INT = BIT(10),
FEAT_POWEROFF_WAKEUP = BIT(11),
FEAT_CAN_OLD_MESSAGE_API = BIT(12),
FEAT_TRNG = BIT(13),
FEAT_CRYPTO = BIT(14),
FEAT_BOARD_INFO = BIT(15),
/*
* Orginally the features command replied only 16 bits. If more were
* read, either the I2C transaction failed or 0xff bytes were sent.
* Therefore to consider bits 16 - 31 valid, one bit (20) was reserved
* to be zero.
*/
/* Bits 16 - 19 correspond to bits 0 - 3 of status word */
FEAT_MCU_TYPE_MASK = GENMASK(17, 16),
FEAT_MCU_TYPE_STM32 = 0 << 16,
FEAT_MCU_TYPE_GD32 = 1 << 16,
FEAT_MCU_TYPE_MKL = 2 << 16,
FEAT_FEATURES_SUPPORTED = BIT(18),
FEAT_USER_REGULATOR_NOT_SUPPORTED = BIT(19),
/* must not be set */
FEAT_FROM_BIT_16_INVALID = BIT(20),
FEAT_PER_LED_CORRECTION = BIT(21),
FEAT_USB_OVC_PROT_SETTING = BIT(22),
};
enum omnia_ext_sts_dword_e {
EXT_STS_SFP_nDET = BIT(0),
EXT_STS_LED_STATES_MASK = GENMASK(31, 12),
EXT_STS_WLAN0_MSATA_LED = BIT(12),
EXT_STS_WLAN1_LED = BIT(13),
EXT_STS_WLAN2_LED = BIT(14),
EXT_STS_WPAN0_LED = BIT(15),
EXT_STS_WPAN1_LED = BIT(16),
EXT_STS_WPAN2_LED = BIT(17),
EXT_STS_WAN_LED0 = BIT(18),
EXT_STS_WAN_LED1 = BIT(19),
EXT_STS_LAN0_LED0 = BIT(20),
EXT_STS_LAN0_LED1 = BIT(21),
EXT_STS_LAN1_LED0 = BIT(22),
EXT_STS_LAN1_LED1 = BIT(23),
EXT_STS_LAN2_LED0 = BIT(24),
EXT_STS_LAN2_LED1 = BIT(25),
EXT_STS_LAN3_LED0 = BIT(26),
EXT_STS_LAN3_LED1 = BIT(27),
EXT_STS_LAN4_LED0 = BIT(28),
EXT_STS_LAN4_LED1 = BIT(29),
EXT_STS_LAN5_LED0 = BIT(30),
EXT_STS_LAN5_LED1 = BIT(31),
};
enum omnia_ext_ctl_e {
EXT_CTL_nRES_MMC = BIT(0),
EXT_CTL_nRES_LAN = BIT(1),
EXT_CTL_nRES_PHY = BIT(2),
EXT_CTL_nPERST0 = BIT(3),
EXT_CTL_nPERST1 = BIT(4),
EXT_CTL_nPERST2 = BIT(5),
EXT_CTL_PHY_SFP = BIT(6),
EXT_CTL_PHY_SFP_AUTO = BIT(7),
EXT_CTL_nVHV_CTRL = BIT(8),
};
enum omnia_int_e {
INT_CARD_DET = BIT(0),
INT_MSATA_IND = BIT(1),
INT_USB30_OVC = BIT(2),
INT_USB31_OVC = BIT(3),
INT_BUTTON_PRESSED = BIT(4),
INT_SFP_nDET = BIT(5),
INT_BRIGHTNESS_CHANGED = BIT(6),
INT_TRNG = BIT(7),
INT_MESSAGE_SIGNED = BIT(8),
INT_LED_STATES_MASK = GENMASK(31, 12),
INT_WLAN0_MSATA_LED = BIT(12),
INT_WLAN1_LED = BIT(13),
INT_WLAN2_LED = BIT(14),
INT_WPAN0_LED = BIT(15),
INT_WPAN1_LED = BIT(16),
INT_WPAN2_LED = BIT(17),
INT_WAN_LED0 = BIT(18),
INT_WAN_LED1 = BIT(19),
INT_LAN0_LED0 = BIT(20),
INT_LAN0_LED1 = BIT(21),
INT_LAN1_LED0 = BIT(22),
INT_LAN1_LED1 = BIT(23),
INT_LAN2_LED0 = BIT(24),
INT_LAN2_LED1 = BIT(25),
INT_LAN3_LED0 = BIT(26),
INT_LAN3_LED1 = BIT(27),
INT_LAN4_LED0 = BIT(28),
INT_LAN4_LED1 = BIT(29),
INT_LAN5_LED0 = BIT(30),
INT_LAN5_LED1 = BIT(31),
};
enum omnia_cmd_poweroff_e {
CMD_POWER_OFF_POWERON_BUTTON = BIT(0),
CMD_POWER_OFF_MAGIC = 0xdead,
};
enum cmd_usb_ovc_prot_e {
CMD_xET_USB_OVC_PROT_PORT_MASK = GENMASK(3, 0),
CMD_xET_USB_OVC_PROT_ENABLE = BIT(4),
};
#endif /* __TURRIS_OMNIA_MCU_INTERFACE_H */
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