drivers/media/platform/seco-cec/seco-cec.h

   1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
   2 /*
   3  * SECO X86 Boards CEC register defines
   4  *
   5  * Author:  Ettore Chimenti <ek5.chimenti@gmail.com>
   6  * Copyright (C) 2018, SECO Spa.
   7  * Copyright (C) 2018, Aidilab Srl.
   8  */
   9
  10 #ifndef __SECO_CEC_H__
  11 #define __SECO_CEC_H__
  12
  13 #define SECOCEC_MAX_ADDRS               1
  14 #define SECOCEC_DEV_NAME                "secocec"
  15 #define SECOCEC_LATEST_FW               0x0f0b
  16
  17 #define SMBTIMEOUT                      0xfff
  18 #define SMB_POLL_UDELAY                 10
  19
  20 #define SMBUS_WRITE                     0
  21 #define SMBUS_READ                      1
  22
  23 #define CMD_BYTE_DATA                   0
  24 #define CMD_WORD_DATA                   1
  25
  26 /*
  27  * SMBus definitons for Braswell
  28  */
  29
  30 #define BRA_DONE_STATUS                 BIT(7)
  31 #define BRA_INUSE_STS                   BIT(6)
  32 #define BRA_FAILED_OP                   BIT(4)
  33 #define BRA_BUS_ERR                     BIT(3)
  34 #define BRA_DEV_ERR                     BIT(2)
  35 #define BRA_INTR                        BIT(1)
  36 #define BRA_HOST_BUSY                   BIT(0)
  37 #define BRA_HSTS_ERR_MASK   (BRA_FAILED_OP | BRA_BUS_ERR | BRA_DEV_ERR)
  38
  39 #define BRA_PEC_EN                      BIT(7)
  40 #define BRA_START                       BIT(6)
  41 #define BRA_LAST__BYTE                  BIT(5)
  42 #define BRA_INTREN                      BIT(0)
  43 #define BRA_SMB_CMD                     (7 << 2)
  44 #define BRA_SMB_CMD_QUICK               (0 << 2)
  45 #define BRA_SMB_CMD_BYTE                (1 << 2)
  46 #define BRA_SMB_CMD_BYTE_DATA           (2 << 2)
  47 #define BRA_SMB_CMD_WORD_DATA           (3 << 2)
  48 #define BRA_SMB_CMD_PROCESS_CALL        (4 << 2)
  49 #define BRA_SMB_CMD_BLOCK               (5 << 2)
  50 #define BRA_SMB_CMD_I2CREAD             (6 << 2)
  51 #define BRA_SMB_CMD_BLOCK_PROCESS       (7 << 2)
  52
  53 #define BRA_SMB_BASE_ADDR  0x2040
  54 #define HSTS               (BRA_SMB_BASE_ADDR + 0)
  55 #define HCNT               (BRA_SMB_BASE_ADDR + 2)
  56 #define HCMD               (BRA_SMB_BASE_ADDR + 3)
  57 #define XMIT_SLVA          (BRA_SMB_BASE_ADDR + 4)
  58 #define HDAT0              (BRA_SMB_BASE_ADDR + 5)
  59 #define HDAT1              (BRA_SMB_BASE_ADDR + 6)
  60
  61 /*
  62  * Microcontroller Address
  63  */
  64
  65 #define SECOCEC_MICRO_ADDRESS           0x40
  66
  67 /*
  68  * STM32 SMBus Registers
  69  */
  70
  71 #define SECOCEC_VERSION                 0x00
  72 #define SECOCEC_ENABLE_REG_1            0x01
  73 #define SECOCEC_ENABLE_REG_2            0x02
  74 #define SECOCEC_STATUS_REG_1            0x03
  75 #define SECOCEC_STATUS_REG_2            0x04
  76
  77 #define SECOCEC_STATUS                  0x28
  78 #define SECOCEC_DEVICE_LA               0x29
  79 #define SECOCEC_READ_OPERATION_ID       0x2a
  80 #define SECOCEC_READ_DATA_LENGTH        0x2b
  81 #define SECOCEC_READ_DATA_00            0x2c
  82 #define SECOCEC_READ_DATA_02            0x2d
  83 #define SECOCEC_READ_DATA_04            0x2e
  84 #define SECOCEC_READ_DATA_06            0x2f
  85 #define SECOCEC_READ_DATA_08            0x30
  86 #define SECOCEC_READ_DATA_10            0x31
  87 #define SECOCEC_READ_DATA_12            0x32
  88 #define SECOCEC_READ_BYTE0              0x33
  89 #define SECOCEC_WRITE_OPERATION_ID      0x34
  90 #define SECOCEC_WRITE_DATA_LENGTH       0x35
  91 #define SECOCEC_WRITE_DATA_00           0x36
  92 #define SECOCEC_WRITE_DATA_02           0x37
  93 #define SECOCEC_WRITE_DATA_04           0x38
  94 #define SECOCEC_WRITE_DATA_06           0x39
  95 #define SECOCEC_WRITE_DATA_08           0x3a
  96 #define SECOCEC_WRITE_DATA_10           0x3b
  97 #define SECOCEC_WRITE_DATA_12           0x3c
  98 #define SECOCEC_WRITE_BYTE0             0x3d
  99
 100 #define SECOCEC_IR_READ_DATA            0x3e
 101
 102 /*
 103  * Enabling register
 104  */
 105
 106 #define SECOCEC_ENABLE_REG_1_CEC                0x1000
 107 #define SECOCEC_ENABLE_REG_1_IR                 0x2000
 108 #define SECOCEC_ENABLE_REG_1_IR_PASSTHROUGH     0x4000
 109
 110 /*
 111  * Status register
 112  */
 113
 114 #define SECOCEC_STATUS_REG_1_CEC        SECOCEC_ENABLE_REG_1_CEC
 115 #define SECOCEC_STATUS_REG_1_IR         SECOCEC_ENABLE_REG_1_IR
 116 #define SECOCEC_STATUS_REG_1_IR_PASSTHR SECOCEC_ENABLE_REG_1_IR_PASSTHR
 117
 118 /*
 119  * Status data
 120  */
 121
 122 #define SECOCEC_STATUS_MSG_RECEIVED_MASK        BIT(0)
 123 #define SECOCEC_STATUS_RX_ERROR_MASK            BIT(1)
 124 #define SECOCEC_STATUS_MSG_SENT_MASK            BIT(2)
 125 #define SECOCEC_STATUS_TX_ERROR_MASK            BIT(3)
 126
 127 #define SECOCEC_STATUS_TX_NACK_ERROR            BIT(4)
 128 #define SECOCEC_STATUS_RX_OVERFLOW_MASK         BIT(5)
 129
 130 #endif /* __SECO_CEC_H__ */