diff options
Diffstat (limited to 'drivers/misc/mei/hw.h')
| -rw-r--r-- | drivers/misc/mei/hw.h | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/drivers/misc/mei/hw.h b/drivers/misc/mei/hw.h index 65655925791a..2b7f7677f8cc 100644 --- a/drivers/misc/mei/hw.h +++ b/drivers/misc/mei/hw.h @@ -35,7 +35,7 @@ /* * MEI Version */ -#define HBM_MINOR_VERSION 0 +#define HBM_MINOR_VERSION 1 #define HBM_MAJOR_VERSION 2 /* @@ -206,6 +206,7 @@ enum mei_cl_disconnect_status { * @dma_ring: message is on dma ring * @internal: message is internal * @msg_complete: last packet of the message + * @extension: extension of the header */ struct mei_msg_hdr { u32 me_addr:8; @@ -215,8 +216,11 @@ struct mei_msg_hdr { u32 dma_ring:1; u32 internal:1; u32 msg_complete:1; + u32 extension[0]; } __packed; +#define MEI_MSG_HDR_MAX 2 + struct mei_bus_message { u8 hbm_cmd; u8 data[0]; @@ -512,4 +516,27 @@ struct hbm_dma_setup_response { u8 reserved[2]; } __packed; +/** + * struct mei_dma_ring_ctrl - dma ring control block + * + * @hbuf_wr_idx: host circular buffer write index in slots + * @reserved1: reserved for alignment + * @hbuf_rd_idx: host circular buffer read index in slots + * @reserved2: reserved for alignment + * @dbuf_wr_idx: device circular buffer write index in slots + * @reserved3: reserved for alignment + * @dbuf_rd_idx: device circular buffer read index in slots + * @reserved4: reserved for alignment + */ +struct hbm_dma_ring_ctrl { + u32 hbuf_wr_idx; + u32 reserved1; + u32 hbuf_rd_idx; + u32 reserved2; + u32 dbuf_wr_idx; + u32 reserved3; + u32 dbuf_rd_idx; + u32 reserved4; +} __packed; + #endif |