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Diffstat (limited to 'drivers/misc/mei/mei_dev.h')
-rw-r--r--drivers/misc/mei/mei_dev.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h
index 8c395bfdf6f3..b7b6ef344e80 100644
--- a/drivers/misc/mei/mei_dev.h
+++ b/drivers/misc/mei/mei_dev.h
@@ -57,6 +57,7 @@ enum mei_dev_state {
MEI_DEV_ENABLED,
MEI_DEV_RESETTING,
MEI_DEV_DISABLED,
+ MEI_DEV_POWERING_DOWN,
MEI_DEV_POWER_DOWN,
MEI_DEV_POWER_UP
};
@@ -78,6 +79,8 @@ enum mei_file_transaction_states {
* @MEI_FOP_DISCONNECT_RSP: disconnect response
* @MEI_FOP_NOTIFY_START: start notification
* @MEI_FOP_NOTIFY_STOP: stop notification
+ * @MEI_FOP_DMA_MAP: request client dma map
+ * @MEI_FOP_DMA_UNMAP: request client dma unmap
*/
enum mei_cb_file_ops {
MEI_FOP_READ = 0,
@@ -87,6 +90,8 @@ enum mei_cb_file_ops {
MEI_FOP_DISCONNECT_RSP,
MEI_FOP_NOTIFY_START,
MEI_FOP_NOTIFY_STOP,
+ MEI_FOP_DMA_MAP,
+ MEI_FOP_DMA_UNMAP,
};
/**
@@ -112,6 +117,13 @@ struct mei_msg_data {
unsigned char *data;
};
+struct mei_dma_data {
+ u8 buffer_id;
+ void *vaddr;
+ dma_addr_t daddr;
+ size_t size;
+};
+
/**
* struct mei_dma_dscr - dma address descriptor
*
@@ -235,6 +247,8 @@ struct mei_cl_vtag {
* @rd_pending: pending read credits
* @rd_completed_lock: protects rd_completed queue
* @rd_completed: completed read
+ * @dma: dma settings
+ * @dma_mapped: dma buffer is currently mapped.
*
* @cldev: device on the mei client bus
*/
@@ -262,6 +276,8 @@ struct mei_cl {
struct list_head rd_pending;
spinlock_t rd_completed_lock; /* protects rd_completed queue */
struct list_head rd_completed;
+ struct mei_dma_data dma;
+ u8 dma_mapped;
struct mei_cl_device *cldev;
};
@@ -450,6 +466,7 @@ struct mei_fw_version {
* @hbm_f_dr_supported : hbm feature dma ring supported
* @hbm_f_vt_supported : hbm feature vtag supported
* @hbm_f_cap_supported : hbm feature capabilities message supported
+ * @hbm_f_cd_supported : hbm feature client dma supported
*
* @fw_ver : FW versions
*
@@ -537,6 +554,7 @@ struct mei_device {
unsigned int hbm_f_dr_supported:1;
unsigned int hbm_f_vt_supported:1;
unsigned int hbm_f_cap_supported:1;
+ unsigned int hbm_f_cd_supported:1;
struct mei_fw_version fw_ver[MEI_MAX_FW_VER_BLOCKS];