| 1 | #ifndef PM_SMBUS_H |
| 2 | #define PM_SMBUS_H |
| 3 | |
| 4 | #include "system/memory.h" |
| 5 | #include "hw/i2c/smbus_master.h" |
| 6 | |
| 7 | #define PM_SMBUS_MAX_MSG_SIZE 32 |
| 8 | |
| 9 | typedef struct PMSMBus { |
| 10 | I2CBus *smbus; |
| 11 | MemoryRegion io; |
| 12 | |
| 13 | uint8_t smb_stat; |
| 14 | uint8_t smb_ctl; |
| 15 | uint8_t smb_cmd; |
| 16 | uint8_t smb_addr; |
| 17 | uint8_t smb_data0; |
| 18 | uint8_t smb_data1; |
| 19 | uint8_t smb_data[PM_SMBUS_MAX_MSG_SIZE]; |
| 20 | uint8_t smb_blkdata; |
| 21 | uint8_t smb_auxctl; |
| 22 | uint32_t smb_index; |
| 23 | |
| 24 | /* Set by pm_smbus.c */ |
| 25 | void (*reset)(struct PMSMBus *s); |
| 26 | |
| 27 | /* Set by the user. */ |
| 28 | bool i2c_enable; |
| 29 | void (*set_irq)(struct PMSMBus *s, bool enabled); |
| 30 | void *opaque; |
| 31 | |
| 32 | /* Internally used by pm_smbus. */ |
| 33 | |
| 34 | /* Set on block transfers after the last byte has been read, so the |
| 35 | INTR bit can be set at the right time. */ |
| 36 | bool op_done; |
| 37 | |
| 38 | /* Set during an I2C block read, so we know how to handle data. */ |
| 39 | bool in_i2c_block_read; |
| 40 | |
| 41 | /* Used to work around a bug in AMIBIOS, see smb_transaction_start() */ |
| 42 | bool start_transaction_on_status_read; |
| 43 | } PMSMBus; |
| 44 | |
| 45 | void pm_smbus_init(DeviceState *parent, PMSMBus *smb, bool force_aux_blk); |
| 46 | |
| 47 | extern const VMStateDescription pmsmb_vmstate; |
| 48 | |
| 49 | #endif /* PM_SMBUS_H */ |