include/turris-omnia-mcu-interface.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * CZ.NIC's Turris Omnia MCU I2C interface commands definitions
   4  *
   5  * 2023 by Marek Behún <kabel@kernel.org>
   6  */
   7
   8 #ifndef __TURRIS_OMNIA_MCU_INTERFACE_H
   9 #define __TURRIS_OMNIA_MCU_INTERFACE_H
  10
  11 #include <linux/bitops.h>
  12
  13 enum omnia_commands_e {
  14         CMD_GET_STATUS_WORD             = 0x01, /* slave sends status word back */
  15         CMD_GENERAL_CONTROL             = 0x02,
  16         CMD_LED_MODE                    = 0x03, /* default/user */
  17         CMD_LED_STATE                   = 0x04, /* LED on/off */
  18         CMD_LED_COLOR                   = 0x05, /* LED number + RED + GREEN + BLUE */
  19         CMD_USER_VOLTAGE                = 0x06,
  20         CMD_SET_BRIGHTNESS              = 0x07,
  21         CMD_GET_BRIGHTNESS              = 0x08,
  22         CMD_GET_RESET                   = 0x09,
  23         CMD_GET_FW_VERSION_APP          = 0x0A, /* 20B git hash number */
  24         CMD_SET_WATCHDOG_STATE          = 0x0B, /* 0 - disable
  25                                                  * 1 - enable / ping
  26                                                  * after boot watchdog is started
  27                                                  * with 2 minutes timeout
  28                                                  */
  29
  30         /* CMD_WATCHDOG_STATUS          = 0x0C, not implemented anymore */
  31
  32         CMD_GET_WATCHDOG_STATE          = 0x0D,
  33         CMD_GET_FW_VERSION_BOOT         = 0x0E, /* 20B git hash number */
  34         CMD_GET_FW_CHECKSUM             = 0x0F, /* 4B length, 4B checksum */
  35
  36         /* available if FEATURES_SUPPORTED bit set in status word */
  37         CMD_GET_FEATURES                = 0x10,
  38
  39         /* available if EXT_CMD bit set in features */
  40         CMD_GET_EXT_STATUS_DWORD        = 0x11,
  41         CMD_EXT_CONTROL                 = 0x12,
  42         CMD_GET_EXT_CONTROL_STATUS      = 0x13,
  43
  44         /* available if NEW_INT_API bit set in features */
  45         CMD_GET_INT_AND_CLEAR           = 0x14,
  46         CMD_GET_INT_MASK                = 0x15,
  47         CMD_SET_INT_MASK                = 0x16,
  48
  49         /* available if FLASHING bit set in features */
  50         CMD_FLASH                       = 0x19,
  51
  52         /* available if WDT_PING bit set in features */
  53         CMD_SET_WDT_TIMEOUT             = 0x20,
  54         CMD_GET_WDT_TIMELEFT            = 0x21,
  55
  56         /* available if POWEROFF_WAKEUP bit set in features */
  57         CMD_SET_WAKEUP                  = 0x22,
  58         CMD_GET_UPTIME_AND_WAKEUP       = 0x23,
  59         CMD_POWER_OFF                   = 0x24,
  60
  61         /* available if USB_OVC_PROT_SETTING bit set in features */
  62         CMD_SET_USB_OVC_PROT            = 0x25,
  63         CMD_GET_USB_OVC_PROT            = 0x26,
  64
  65         /* available if TRNG bit set in features */
  66         CMD_TRNG_COLLECT_ENTROPY        = 0x28,
  67
  68         /* available if CRYPTO bit set in features */
  69         CMD_CRYPTO_GET_PUBLIC_KEY       = 0x29,
  70         CMD_CRYPTO_SIGN_MESSAGE         = 0x2A,
  71         CMD_CRYPTO_COLLECT_SIGNATURE    = 0x2B,
  72
  73         /* available if BOARD_INFO it set in features */
  74         CMD_BOARD_INFO_GET              = 0x2C,
  75         CMD_BOARD_INFO_BURN             = 0x2D,
  76
  77         /* available only at address 0x2b (led-controller) */
  78         /* available only if LED_GAMMA_CORRECTION bit set in features */
  79         CMD_SET_GAMMA_CORRECTION        = 0x30,
  80         CMD_GET_GAMMA_CORRECTION        = 0x31,
  81
  82         /* available only at address 0x2b (led-controller) */
  83         /* available only if PER_LED_CORRECTION bit set in features */
  84         /* available only if FROM_BIT_16_INVALID bit NOT set in features */
  85         CMD_SET_LED_CORRECTIONS         = 0x32,
  86         CMD_GET_LED_CORRECTIONS         = 0x33,
  87 };
  88
  89 enum omnia_flashing_commands_e {
  90         FLASH_CMD_UNLOCK                = 0x01,
  91         FLASH_CMD_SIZE_AND_CSUM         = 0x02,
  92         FLASH_CMD_PROGRAM               = 0x03,
  93         FLASH_CMD_RESET                 = 0x04,
  94 };
  95
  96 enum omnia_sts_word_e {
  97         STS_MCU_TYPE_MASK                       = GENMASK(1, 0),
  98         STS_MCU_TYPE_STM32                      = 0 << 0,
  99         STS_MCU_TYPE_GD32                       = 1 << 0,
 100         STS_MCU_TYPE_MKL                        = 2 << 0,
 101         STS_FEATURES_SUPPORTED                  = BIT(2),
 102         STS_USER_REGULATOR_NOT_SUPPORTED        = BIT(3),
 103         STS_CARD_DET                            = BIT(4),
 104         STS_MSATA_IND                           = BIT(5),
 105         STS_USB30_OVC                           = BIT(6),
 106         STS_USB31_OVC                           = BIT(7),
 107         STS_USB30_PWRON                         = BIT(8),
 108         STS_USB31_PWRON                         = BIT(9),
 109         STS_ENABLE_4V5                          = BIT(10),
 110         STS_BUTTON_MODE                         = BIT(11),
 111         STS_BUTTON_PRESSED                      = BIT(12),
 112         STS_BUTTON_COUNTER_MASK                 = GENMASK(15, 13)
 113 };
 114
 115 enum omnia_ctl_byte_e {
 116         CTL_LIGHT_RST           = BIT(0),
 117         CTL_HARD_RST            = BIT(1),
 118         /* BIT(2) is currently reserved */
 119         CTL_USB30_PWRON         = BIT(3),
 120         CTL_USB31_PWRON         = BIT(4),
 121         CTL_ENABLE_4V5          = BIT(5),
 122         CTL_BUTTON_MODE         = BIT(6),
 123         CTL_BOOTLOADER          = BIT(7)
 124 };
 125
 126 enum omnia_features_e {
 127         FEAT_PERIPH_MCU                 = BIT(0),
 128         FEAT_EXT_CMDS                   = BIT(1),
 129         FEAT_WDT_PING                   = BIT(2),
 130         FEAT_LED_STATE_EXT_MASK         = GENMASK(4, 3),
 131         FEAT_LED_STATE_EXT              = 1 << 3,
 132         FEAT_LED_STATE_EXT_V32          = 2 << 3,
 133         FEAT_LED_GAMMA_CORRECTION       = BIT(5),
 134         FEAT_NEW_INT_API                = BIT(6),
 135         FEAT_BOOTLOADER                 = BIT(7),
 136         FEAT_FLASHING                   = BIT(8),
 137         FEAT_NEW_MESSAGE_API            = BIT(9),
 138         FEAT_BRIGHTNESS_INT             = BIT(10),
 139         FEAT_POWEROFF_WAKEUP            = BIT(11),
 140         FEAT_CAN_OLD_MESSAGE_API        = BIT(12),
 141         FEAT_TRNG                       = BIT(13),
 142         FEAT_CRYPTO                     = BIT(14),
 143         FEAT_BOARD_INFO                 = BIT(15),
 144
 145         /*
 146          * Orginally the features command replied only 16 bits. If more were
 147          * read, either the I2C transaction failed or 0xff bytes were sent.
 148          * Therefore to consider bits 16 - 31 valid, one bit (20) was reserved
 149          * to be zero.
 150          */
 151
 152         /* Bits 16 - 19 correspond to bits 0 - 3 of status word */
 153         FEAT_MCU_TYPE_MASK              = GENMASK(17, 16),
 154         FEAT_MCU_TYPE_STM32             = 0 << 16,
 155         FEAT_MCU_TYPE_GD32              = 1 << 16,
 156         FEAT_MCU_TYPE_MKL               = 2 << 16,
 157         FEAT_FEATURES_SUPPORTED         = BIT(18),
 158         FEAT_USER_REGULATOR_NOT_SUPPORTED = BIT(19),
 159
 160         /* must not be set */
 161         FEAT_FROM_BIT_16_INVALID        = BIT(20),
 162
 163         FEAT_PER_LED_CORRECTION         = BIT(21),
 164         FEAT_USB_OVC_PROT_SETTING       = BIT(22),
 165 };
 166
 167 enum omnia_ext_sts_dword_e {
 168         EXT_STS_SFP_nDET                = BIT(0),
 169         EXT_STS_LED_STATES_MASK         = GENMASK(31, 12),
 170         EXT_STS_WLAN0_MSATA_LED         = BIT(12),
 171         EXT_STS_WLAN1_LED               = BIT(13),
 172         EXT_STS_WLAN2_LED               = BIT(14),
 173         EXT_STS_WPAN0_LED               = BIT(15),
 174         EXT_STS_WPAN1_LED               = BIT(16),
 175         EXT_STS_WPAN2_LED               = BIT(17),
 176         EXT_STS_WAN_LED0                = BIT(18),
 177         EXT_STS_WAN_LED1                = BIT(19),
 178         EXT_STS_LAN0_LED0               = BIT(20),
 179         EXT_STS_LAN0_LED1               = BIT(21),
 180         EXT_STS_LAN1_LED0               = BIT(22),
 181         EXT_STS_LAN1_LED1               = BIT(23),
 182         EXT_STS_LAN2_LED0               = BIT(24),
 183         EXT_STS_LAN2_LED1               = BIT(25),
 184         EXT_STS_LAN3_LED0               = BIT(26),
 185         EXT_STS_LAN3_LED1               = BIT(27),
 186         EXT_STS_LAN4_LED0               = BIT(28),
 187         EXT_STS_LAN4_LED1               = BIT(29),
 188         EXT_STS_LAN5_LED0               = BIT(30),
 189         EXT_STS_LAN5_LED1               = BIT(31),
 190 };
 191
 192 enum omnia_ext_ctl_e {
 193         EXT_CTL_nRES_MMC                = BIT(0),
 194         EXT_CTL_nRES_LAN                = BIT(1),
 195         EXT_CTL_nRES_PHY                = BIT(2),
 196         EXT_CTL_nPERST0                 = BIT(3),
 197         EXT_CTL_nPERST1                 = BIT(4),
 198         EXT_CTL_nPERST2                 = BIT(5),
 199         EXT_CTL_PHY_SFP                 = BIT(6),
 200         EXT_CTL_PHY_SFP_AUTO            = BIT(7),
 201         EXT_CTL_nVHV_CTRL               = BIT(8),
 202 };
 203
 204 enum omnia_int_e {
 205         INT_CARD_DET            = BIT(0),
 206         INT_MSATA_IND           = BIT(1),
 207         INT_USB30_OVC           = BIT(2),
 208         INT_USB31_OVC           = BIT(3),
 209         INT_BUTTON_PRESSED      = BIT(4),
 210         INT_SFP_nDET            = BIT(5),
 211         INT_BRIGHTNESS_CHANGED  = BIT(6),
 212         INT_TRNG                = BIT(7),
 213         INT_MESSAGE_SIGNED      = BIT(8),
 214
 215         INT_LED_STATES_MASK     = GENMASK(31, 12),
 216         INT_WLAN0_MSATA_LED     = BIT(12),
 217         INT_WLAN1_LED           = BIT(13),
 218         INT_WLAN2_LED           = BIT(14),
 219         INT_WPAN0_LED           = BIT(15),
 220         INT_WPAN1_LED           = BIT(16),
 221         INT_WPAN2_LED           = BIT(17),
 222         INT_WAN_LED0            = BIT(18),
 223         INT_WAN_LED1            = BIT(19),
 224         INT_LAN0_LED0           = BIT(20),
 225         INT_LAN0_LED1           = BIT(21),
 226         INT_LAN1_LED0           = BIT(22),
 227         INT_LAN1_LED1           = BIT(23),
 228         INT_LAN2_LED0           = BIT(24),
 229         INT_LAN2_LED1           = BIT(25),
 230         INT_LAN3_LED0           = BIT(26),
 231         INT_LAN3_LED1           = BIT(27),
 232         INT_LAN4_LED0           = BIT(28),
 233         INT_LAN4_LED1           = BIT(29),
 234         INT_LAN5_LED0           = BIT(30),
 235         INT_LAN5_LED1           = BIT(31),
 236 };
 237
 238 enum omnia_cmd_poweroff_e {
 239         CMD_POWER_OFF_POWERON_BUTTON    = BIT(0),
 240         CMD_POWER_OFF_MAGIC             = 0xdead,
 241 };
 242
 243 enum cmd_usb_ovc_prot_e {
 244         CMD_xET_USB_OVC_PROT_PORT_MASK  = GENMASK(3, 0),
 245         CMD_xET_USB_OVC_PROT_ENABLE     = BIT(4),
 246 };
 247
 248 #endif /* __TURRIS_OMNIA_MCU_INTERFACE_H */