diff options
Diffstat (limited to 'drivers/misc/mei/mei_dev.h')
| -rw-r--r-- | drivers/misc/mei/mei_dev.h | 77 |
1 files changed, 56 insertions, 21 deletions
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h index be9c48415da9..377397e1b5a5 100644 --- a/drivers/misc/mei/mei_dev.h +++ b/drivers/misc/mei/mei_dev.h @@ -1,7 +1,7 @@ /* * * Intel Management Engine Interface (Intel MEI) Linux driver - * Copyright (c) 2003-2012, Intel Corporation. + * Copyright (c) 2003-2018, Intel Corporation. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, @@ -26,7 +26,8 @@ #include "hw.h" #include "hbm.h" -#define MEI_RD_MSG_BUF_SIZE (128 * sizeof(u32)) +#define MEI_SLOT_SIZE sizeof(u32) +#define MEI_RD_MSG_BUF_SIZE (128 * MEI_SLOT_SIZE) /* * Number of Maximum MEI Clients @@ -174,7 +175,6 @@ struct mei_cl; * @status: io status of the cb * @internal: communication between driver and FW flag * @blocking: transmission blocking mode - * @completed: the transfer or reception has completed */ struct mei_cl_cb { struct list_head list; @@ -186,7 +186,6 @@ struct mei_cl_cb { int status; u32 internal:1; u32 blocking:1; - u32 completed:1; }; /** @@ -269,7 +268,7 @@ struct mei_cl { * * @hbuf_free_slots : query for write buffer empty slots * @hbuf_is_ready : query if write buffer is empty - * @hbuf_max_len : query for write buffer max len + * @hbuf_depth : query for write buffer depth * * @write : write a message to FW * @@ -299,10 +298,10 @@ struct mei_hw_ops { int (*hbuf_free_slots)(struct mei_device *dev); bool (*hbuf_is_ready)(struct mei_device *dev); - size_t (*hbuf_max_len)(const struct mei_device *dev); + u32 (*hbuf_depth)(const struct mei_device *dev); int (*write)(struct mei_device *dev, - struct mei_msg_hdr *hdr, - const unsigned char *buf); + const void *hdr, size_t hdr_len, + const void *data, size_t data_len); int (*rdbuf_full_slots)(struct mei_device *dev); @@ -317,7 +316,7 @@ void mei_cl_bus_dev_fixup(struct mei_cl_device *dev); ssize_t __mei_cl_send(struct mei_cl *cl, u8 *buf, size_t length, unsigned int mode); ssize_t __mei_cl_recv(struct mei_cl *cl, u8 *buf, size_t length, - unsigned int mode); + unsigned int mode, unsigned long timeout); bool mei_cl_bus_rx_event(struct mei_cl *cl); bool mei_cl_bus_notify_event(struct mei_cl *cl); void mei_cl_bus_remove_devices(struct mei_device *bus); @@ -355,6 +354,25 @@ enum mei_pg_state { const char *mei_pg_state_str(enum mei_pg_state state); /** + * struct mei_fw_version - MEI FW version struct + * + * @platform: platform identifier + * @major: major version field + * @minor: minor version field + * @buildno: build number version field + * @hotfix: hotfix number version field + */ +struct mei_fw_version { + u8 platform; + u8 major; + u16 minor; + u16 buildno; + u16 hotfix; +}; + +#define MEI_MAX_FW_VER_BLOCKS 3 + +/** * struct mei_device - MEI private device struct * * @dev : device on a bus @@ -390,7 +408,6 @@ const char *mei_pg_state_str(enum mei_pg_state state); * @rd_msg_buf : control messages buffer * @rd_msg_hdr : read message header storage * - * @hbuf_depth : depth of hardware host/write buffer is slots * @hbuf_is_ready : query if the host host/write buffer is ready * * @version : HBM protocol version in use @@ -401,6 +418,9 @@ const char *mei_pg_state_str(enum mei_pg_state state); * @hbm_f_fa_supported : hbm feature fixed address client * @hbm_f_ie_supported : hbm feature immediate reply to enum request * @hbm_f_os_supported : hbm feature support OS ver message + * @hbm_f_dr_supported : hbm feature dma ring supported + * + * @fw_ver : FW versions * * @me_clients_rwsem: rw lock over me_clients list * @me_clients : list of FW clients @@ -466,7 +486,6 @@ struct mei_device { u32 rd_msg_hdr; /* write buffer */ - u8 hbuf_depth; bool hbuf_is_ready; struct hbm_version version; @@ -477,6 +496,9 @@ struct mei_device { unsigned int hbm_f_fa_supported:1; unsigned int hbm_f_ie_supported:1; unsigned int hbm_f_os_supported:1; + unsigned int hbm_f_dr_supported:1; + + struct mei_fw_version fw_ver[MEI_MAX_FW_VER_BLOCKS]; struct rw_semaphore me_clients_rwsem; struct list_head me_clients; @@ -508,8 +530,7 @@ static inline unsigned long mei_secs_to_jiffies(unsigned long sec) } /** - * mei_data2slots - get slots - number of (dwords) from a message length - * + size of the mei header + * mei_data2slots - get slots number from a message length * * @length: size of the messages in bytes * @@ -517,7 +538,20 @@ static inline unsigned long mei_secs_to_jiffies(unsigned long sec) */ static inline u32 mei_data2slots(size_t length) { - return DIV_ROUND_UP(sizeof(struct mei_msg_hdr) + length, 4); + return DIV_ROUND_UP(length, MEI_SLOT_SIZE); +} + +/** + * mei_hbm2slots - get slots number from a hbm message length + * length + size of the mei message header + * + * @length: size of the messages in bytes + * + * Return: number of slots + */ +static inline u32 mei_hbm2slots(size_t length) +{ + return DIV_ROUND_UP(sizeof(struct mei_msg_hdr) + length, MEI_SLOT_SIZE); } /** @@ -529,7 +563,7 @@ static inline u32 mei_data2slots(size_t length) */ static inline u32 mei_slots2data(int slots) { - return slots * 4; + return slots * MEI_SLOT_SIZE; } /* @@ -630,15 +664,16 @@ static inline int mei_hbuf_empty_slots(struct mei_device *dev) return dev->ops->hbuf_free_slots(dev); } -static inline size_t mei_hbuf_max_len(const struct mei_device *dev) +static inline u32 mei_hbuf_depth(const struct mei_device *dev) { - return dev->ops->hbuf_max_len(dev); + return dev->ops->hbuf_depth(dev); } static inline int mei_write_message(struct mei_device *dev, - struct mei_msg_hdr *hdr, const void *buf) + const void *hdr, size_t hdr_len, + const void *data, size_t data_len) { - return dev->ops->write(dev, hdr, buf); + return dev->ops->write(dev, hdr, hdr_len, data, data_len); } static inline u32 mei_read_hdr(const struct mei_device *dev) @@ -681,10 +716,10 @@ static inline void mei_dbgfs_deregister(struct mei_device *dev) {} int mei_register(struct mei_device *dev, struct device *parent); void mei_deregister(struct mei_device *dev); -#define MEI_HDR_FMT "hdr:host=%02d me=%02d len=%d internal=%1d comp=%1d" +#define MEI_HDR_FMT "hdr:host=%02d me=%02d len=%d dma=%1d internal=%1d comp=%1d" #define MEI_HDR_PRM(hdr) \ (hdr)->host_addr, (hdr)->me_addr, \ - (hdr)->length, (hdr)->internal, (hdr)->msg_complete + (hdr)->length, (hdr)->dma_ring, (hdr)->internal, (hdr)->msg_complete ssize_t mei_fw_status2str(struct mei_fw_status *fw_sts, char *buf, size_t len); /** |