diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/misc/mei/amthif.c | 5 | ||||
| -rw-r--r-- | drivers/misc/mei/client.c | 6 | ||||
| -rw-r--r-- | drivers/misc/mei/debugfs.c | 2 | ||||
| -rw-r--r-- | drivers/misc/mei/hbm.c | 2 | ||||
| -rw-r--r-- | drivers/misc/mei/hw-me.c | 41 | ||||
| -rw-r--r-- | drivers/misc/mei/hw-me.h | 6 | ||||
| -rw-r--r-- | drivers/misc/mei/hw-txe.c | 63 | ||||
| -rw-r--r-- | drivers/misc/mei/hw-txe.h | 1 | ||||
| -rw-r--r-- | drivers/misc/mei/hw.h | 2 | ||||
| -rw-r--r-- | drivers/misc/mei/init.c | 4 | ||||
| -rw-r--r-- | drivers/misc/mei/interrupt.c | 4 | ||||
| -rw-r--r-- | drivers/misc/mei/mei_dev.h | 151 | ||||
| -rw-r--r-- | drivers/misc/mei/nfc.c | 5 | ||||
| -rw-r--r-- | drivers/misc/mei/pci-me.c | 6 |
14 files changed, 231 insertions, 67 deletions
diff --git a/drivers/misc/mei/amthif.c b/drivers/misc/mei/amthif.c index 29b3fd0ab505..6cdce8477f57 100644 --- a/drivers/misc/mei/amthif.c +++ b/drivers/misc/mei/amthif.c @@ -64,6 +64,7 @@ void mei_amthif_reset_params(struct mei_device *dev) * * @dev: the device structure * + * Return: 0 on success, <0 on failure. */ int mei_amthif_host_init(struct mei_device *dev) { @@ -352,7 +353,7 @@ int mei_amthif_write(struct mei_device *dev, struct mei_cl_cb *cb) return mei_amthif_send_cmd(dev, cb); } /** - * mei_amthif_run_next_cmd + * mei_amthif_run_next_cmd - send next amt command from queue * * @dev: the device structure */ @@ -496,7 +497,7 @@ int mei_amthif_irq_write(struct mei_cl *cl, struct mei_cl_cb *cb, } /** - * mei_amthif_irq_read_message - read routine after ISR to + * mei_amthif_irq_read_msg - read routine after ISR to * handle the read amthif message * * @dev: the device structure diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c index 1f91c55f7af5..bc9ba5359bc6 100644 --- a/drivers/misc/mei/client.c +++ b/drivers/misc/mei/client.c @@ -271,6 +271,8 @@ int mei_io_cb_alloc_resp_buf(struct mei_cl_cb *cb, size_t length) * mei_cl_flush_queues - flushes queue lists belonging to cl. * * @cl: host client + * + * Return: 0 on success, -EINVAL if cl or cl->dev is NULL. */ int mei_cl_flush_queues(struct mei_cl *cl) { @@ -402,6 +404,8 @@ int mei_cl_link(struct mei_cl *cl, int id) * mei_cl_unlink - remove me_cl from the list * * @cl: host client + * + * Return: always 0 */ int mei_cl_unlink(struct mei_cl *cl) { @@ -756,6 +760,7 @@ int mei_cl_flow_ctrl_reduce(struct mei_cl *cl) * mei_cl_read_start - the start read client message function. * * @cl: host client + * @length: number of bytes to read * * Return: 0 on success, <0 on failure. */ @@ -916,6 +921,7 @@ int mei_cl_irq_write(struct mei_cl *cl, struct mei_cl_cb *cb, * * @cl: host client * @cb: write callback with filled data + * @blocking: block until completed * * Return: number of bytes sent on success, <0 on failure. */ diff --git a/drivers/misc/mei/debugfs.c b/drivers/misc/mei/debugfs.c index 357b02c18d40..ce1566715f80 100644 --- a/drivers/misc/mei/debugfs.c +++ b/drivers/misc/mei/debugfs.c @@ -177,6 +177,8 @@ void mei_dbgfs_deregister(struct mei_device *dev) * * @dev: the mei device structure * @name: the mei device name + * + * Return: 0 on success, <0 on failure. */ int mei_dbgfs_register(struct mei_device *dev, const char *name) { diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c index da476e8cac84..49a2653d91a5 100644 --- a/drivers/misc/mei/hbm.c +++ b/drivers/misc/mei/hbm.c @@ -176,6 +176,8 @@ void mei_hbm_cl_hdr(struct mei_cl *cl, u8 hbm_cmd, void *buf, size_t len) * @cl: client * @hbm_cmd: host bus message command * @len: buffer length + * + * Return: 0 on success, <0 on failure. */ static inline int mei_hbm_cl_write(struct mei_device *dev, diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c index 9dd7aa70bd85..4f2fd6fc1e23 100644 --- a/drivers/misc/mei/hw-me.c +++ b/drivers/misc/mei/hw-me.c @@ -94,6 +94,7 @@ static inline u32 mei_hcsr_read(const struct mei_me_hw *hw) * and ignores the H_IS bit for it is write-one-to-zero. * * @hw: the me hardware structure + * @hcsr: new register value */ static inline void mei_hcsr_set(struct mei_me_hw *hw, u32 hcsr) { @@ -106,6 +107,8 @@ static inline void mei_hcsr_set(struct mei_me_hw *hw, u32 hcsr) * * @dev: mei device * @fw_status: fw status register values + * + * Return: 0 on success, error otherwise */ static int mei_me_fw_status(struct mei_device *dev, struct mei_fw_status *fw_status) @@ -149,8 +152,9 @@ static void mei_me_hw_config(struct mei_device *dev) * mei_me_pg_state - translate internal pg state * to the mei power gating state * - * @hw - me hardware - * returns: MEI_PG_OFF if aliveness is on and MEI_PG_ON otherwise + * @dev: mei device + * + * Return: MEI_PG_OFF if aliveness is on and MEI_PG_ON otherwise */ static inline enum mei_pg_state mei_me_pg_state(struct mei_device *dev) { @@ -160,7 +164,7 @@ static inline enum mei_pg_state mei_me_pg_state(struct mei_device *dev) } /** - * mei_clear_interrupts - clear and stop interrupts + * mei_me_intr_clear - clear and stop interrupts * * @dev: the device structure */ @@ -187,7 +191,7 @@ static void mei_me_intr_enable(struct mei_device *dev) } /** - * mei_disable_interrupts - disables mei device interrupts + * mei_me_intr_disable - disables mei device interrupts * * @dev: the device structure */ @@ -222,6 +226,8 @@ static void mei_me_hw_reset_release(struct mei_device *dev) * * @dev: the device structure * @intr_enable: if interrupt should be enabled after reset. + * + * Return: always 0 */ static int mei_me_hw_reset(struct mei_device *dev, bool intr_enable) { @@ -259,10 +265,8 @@ static int mei_me_hw_reset(struct mei_device *dev, bool intr_enable) /** * mei_me_host_set_ready - enable device * - * @dev - mei device - * returns bool + * @dev: mei device */ - static void mei_me_host_set_ready(struct mei_device *dev) { struct mei_me_hw *hw = to_me_hw(dev); @@ -271,6 +275,7 @@ static void mei_me_host_set_ready(struct mei_device *dev) hw->host_hw_state |= H_IE | H_IG | H_RDY; mei_hcsr_set(hw, hw->host_hw_state); } + /** * mei_me_host_is_ready - check whether the host has turned ready * @@ -299,6 +304,13 @@ static bool mei_me_hw_is_ready(struct mei_device *dev) return (hw->me_hw_state & ME_RDY_HRA) == ME_RDY_HRA; } +/** + * mei_me_hw_ready_wait - wait until the me(hw) has turned ready + * or timeout is reached + * + * @dev: mei device + * Return: 0 on success, error otherwise + */ static int mei_me_hw_ready_wait(struct mei_device *dev) { mutex_unlock(&dev->device_lock); @@ -315,6 +327,12 @@ static int mei_me_hw_ready_wait(struct mei_device *dev) return 0; } +/** + * mei_me_hw_start - hw start routine + * + * @dev: mei device + * Return: 0 on success, error otherwise + */ static int mei_me_hw_start(struct mei_device *dev) { int ret = mei_me_hw_ready_wait(dev); @@ -381,6 +399,13 @@ static int mei_me_hbuf_empty_slots(struct mei_device *dev) return empty_slots; } +/** + * mei_me_hbuf_max_len - returns size of hw buffer. + * + * @dev: the device structure + * + * Return: size of hw buffer in bytes + */ static size_t mei_me_hbuf_max_len(const struct mei_device *dev) { return dev->hbuf_depth * sizeof(u32) - sizeof(struct mei_msg_hdr); @@ -472,6 +497,8 @@ static int mei_me_count_full_read_slots(struct mei_device *dev) * @dev: the device structure * @buffer: message buffer will be written * @buffer_length: message size will be read + * + * Return: always 0 */ static int mei_me_read_slots(struct mei_device *dev, unsigned char *buffer, unsigned long buffer_length) diff --git a/drivers/misc/mei/hw-me.h b/drivers/misc/mei/hw-me.h index b0001b3a0fb5..e6a59a62573a 100644 --- a/drivers/misc/mei/hw-me.h +++ b/drivers/misc/mei/hw-me.h @@ -47,7 +47,13 @@ struct mei_cfg { #define MEI_ME_RPM_TIMEOUT 500 /* ms */ /** + * struct mei_me_hw - me hw specific data + * * @cfg: per device generation config and ops + * @mem_addr: io memory address + * @host_hw_state: cached host state + * @me_hw_state: cached me (fw) state + * @pg_state: power gating state */ struct mei_me_hw { const struct mei_cfg *cfg; diff --git a/drivers/misc/mei/hw-txe.c b/drivers/misc/mei/hw-txe.c index 0a155228645b..d3cf042fc509 100644 --- a/drivers/misc/mei/hw-txe.c +++ b/drivers/misc/mei/hw-txe.c @@ -28,11 +28,12 @@ #include "hbm.h" /** - * mei_txe_reg_read - Reads 32bit data from the device + * mei_txe_reg_read - Reads 32bit data from the txe device * * @base_addr: registers base address * @offset: register offset * + * Return: register value */ static inline u32 mei_txe_reg_read(void __iomem *base_addr, unsigned long offset) @@ -41,7 +42,7 @@ static inline u32 mei_txe_reg_read(void __iomem *base_addr, } /** - * mei_txe_reg_write - Writes 32bit data to the device + * mei_txe_reg_write - Writes 32bit data to the txe device * * @base_addr: registers base address * @offset: register offset @@ -56,10 +57,12 @@ static inline void mei_txe_reg_write(void __iomem *base_addr, /** * mei_txe_sec_reg_read_silent - Reads 32bit data from the SeC BAR * - * @dev: the device structure + * @hw: the txe hardware structure * @offset: register offset * * Doesn't check for aliveness while Reads 32bit data from the SeC BAR + * + * Return: register value */ static inline u32 mei_txe_sec_reg_read_silent(struct mei_txe_hw *hw, unsigned long offset) @@ -70,10 +73,12 @@ static inline u32 mei_txe_sec_reg_read_silent(struct mei_txe_hw *hw, /** * mei_txe_sec_reg_read - Reads 32bit data from the SeC BAR * - * @dev: the device structure + * @hw: the txe hardware structure * @offset: register offset * * Reads 32bit data from the SeC BAR and shout loud if aliveness is not set + * + * Return: register value */ static inline u32 mei_txe_sec_reg_read(struct mei_txe_hw *hw, unsigned long offset) @@ -115,9 +120,10 @@ static inline void mei_txe_sec_reg_write(struct mei_txe_hw *hw, /** * mei_txe_br_reg_read - Reads 32bit data from the Bridge BAR * - * @hw: the device structure + * @hw: the txe hardware structure * @offset: offset from which to read the data * + * Return: the byte read. */ static inline u32 mei_txe_br_reg_read(struct mei_txe_hw *hw, unsigned long offset) @@ -147,7 +153,10 @@ static inline void mei_txe_br_reg_write(struct mei_txe_hw *hw, * Request for aliveness change and returns true if the change is * really needed and false if aliveness is already * in the requested state - * Requires device lock to be held + * + * Locking: called under "dev->device_lock" lock + * + * Return: true if request was send */ static bool mei_txe_aliveness_set(struct mei_device *dev, u32 req) { @@ -172,6 +181,8 @@ static bool mei_txe_aliveness_set(struct mei_device *dev, u32 req) * * Extract HICR_HOST_ALIVENESS_RESP_ACK bit from * from HICR_HOST_ALIVENESS_REQ register value + * + * Return: SICR_HOST_ALIVENESS_REQ_REQUESTED bit value */ static u32 mei_txe_aliveness_req_get(struct mei_device *dev) { @@ -184,10 +195,11 @@ static u32 mei_txe_aliveness_req_get(struct mei_device *dev) /** * mei_txe_aliveness_get - get aliveness response register value + * * @dev: the device structure * - * Extract HICR_HOST_ALIVENESS_RESP_ACK bit - * from HICR_HOST_ALIVENESS_RESP register value + * Return: HICR_HOST_ALIVENESS_RESP_ACK bit from HICR_HOST_ALIVENESS_RESP + * register */ static u32 mei_txe_aliveness_get(struct mei_device *dev) { @@ -278,6 +290,7 @@ static int mei_txe_aliveness_wait(struct mei_device *dev, u32 expected) * mei_txe_aliveness_set_sync - sets an wait for aliveness to complete * * @dev: the device structure + * @req: requested aliveness value * * Return: 0 on success and < 0 otherwise */ @@ -359,6 +372,8 @@ static void mei_txe_output_ready_set(struct mei_txe_hw *hw) * mei_txe_is_input_ready - check if TXE is ready for receiving data * * @dev: the device structure + * + * Return: true if INPUT STATUS READY bit is set */ static bool mei_txe_is_input_ready(struct mei_device *dev) { @@ -417,6 +432,8 @@ static void mei_txe_intr_enable(struct mei_device *dev) * * Checks if there are pending interrupts * only Aliveness, Readiness, Input ready, and Output doorbell are relevant + * + * Return: true if there are pending interrupts */ static bool mei_txe_pending_interrupts(struct mei_device *dev) { @@ -476,7 +493,7 @@ static u32 mei_txe_out_data_read(const struct mei_device *dev, /* Readiness */ /** - * mei_txe_readiness_set_host_rdy + * mei_txe_readiness_set_host_rdy - set host readiness bit * * @dev: the device structure */ @@ -490,7 +507,7 @@ static void mei_txe_readiness_set_host_rdy(struct mei_device *dev) } /** - * mei_txe_readiness_clear + * mei_txe_readiness_clear - clear host readiness bit * * @dev: the device structure */ @@ -521,7 +538,9 @@ static u32 mei_txe_readiness_get(struct mei_device *dev) * mei_txe_readiness_is_sec_rdy - check readiness * for HICR_SEC_IPC_READINESS_SEC_RDY * - * @readiness - cached readiness state + * @readiness: cached readiness state + * + * Return: true if readiness bit is set */ static inline bool mei_txe_readiness_is_sec_rdy(u32 readiness) { @@ -532,6 +551,8 @@ static inline bool mei_txe_readiness_is_sec_rdy(u32 readiness) * mei_txe_hw_is_ready - check if the hw is ready * * @dev: the device structure + * + * Return: true if sec is ready */ static bool mei_txe_hw_is_ready(struct mei_device *dev) { @@ -544,6 +565,8 @@ static bool mei_txe_hw_is_ready(struct mei_device *dev) * mei_txe_host_is_ready - check if the host is ready * * @dev: the device structure + * + * Return: true if host is ready */ static inline bool mei_txe_host_is_ready(struct mei_device *dev) { @@ -589,6 +612,8 @@ const struct mei_fw_status mei_txe_fw_sts = { * * @dev: mei device * @fw_status: fw status register values + * + * Return: 0 on success, error otherwise */ static int mei_txe_fw_status(struct mei_device *dev, struct mei_fw_status *fw_status) @@ -643,7 +668,7 @@ static void mei_txe_hw_config(struct mei_device *dev) * @header: header of message * @buf: message buffer will be written * - * Return: if success, 0 - otherwise. + * Return: 0 if success, <0 - otherwise. */ static int mei_txe_write(struct mei_device *dev, @@ -710,7 +735,7 @@ static int mei_txe_write(struct mei_device *dev, * * @dev: the device structure * - * Return: PAYLOAD_SIZE - 4 + * Return: the PAYLOAD_SIZE - 4 */ static size_t mei_txe_hbuf_max_len(const struct mei_device *dev) { @@ -859,7 +884,7 @@ static int mei_txe_hw_reset(struct mei_device *dev, bool intr_enable) * * @dev: the device structure * - * Return: 0 on success and < 0 in case of error + * Return: 0 on success an error code otherwise */ static int mei_txe_hw_start(struct mei_device *dev) { @@ -915,6 +940,8 @@ static int mei_txe_hw_start(struct mei_device *dev) * * @dev: the device structure * @do_ack: acknowledge interrupts + * + * Return: true if found interrupts to process. */ static bool mei_txe_check_and_ack_intrs(struct mei_device *dev, bool do_ack) { @@ -990,7 +1017,6 @@ irqreturn_t mei_txe_irq_quick_handler(int irq, void *dev_id) * @dev_id: pointer to the device structure * * Return: IRQ_HANDLED - * */ irqreturn_t mei_txe_irq_thread_handler(int irq, void *dev_id) { @@ -1135,10 +1161,9 @@ static const struct mei_hw_ops mei_txe_hw_ops = { /** * mei_txe_dev_init - allocates and initializes txe hardware specific structure * - * @pdev - pci device - * - * Return: struct mei_device * on success or NULL; + * @pdev: pci device * + * Return: struct mei_device * on success or NULL */ struct mei_device *mei_txe_dev_init(struct pci_dev *pdev) { @@ -1165,6 +1190,8 @@ struct mei_device *mei_txe_dev_init(struct pci_dev *pdev) * @dev: the device structure * @addr: physical address start of the range * @range: physical range size + * + * Return: 0 on success an error code otherwise */ int mei_txe_setup_satt2(struct mei_device *dev, phys_addr_t addr, u32 range) { diff --git a/drivers/misc/mei/hw-txe.h b/drivers/misc/mei/hw-txe.h index e8dd2d165c25..ce3ed0b88b0c 100644 --- a/drivers/misc/mei/hw-txe.h +++ b/drivers/misc/mei/hw-txe.h @@ -40,6 +40,7 @@ * @mem_addr: SeC and BRIDGE bars * @aliveness: aliveness (power gating) state of the hardware * @readiness: readiness state of the hardware + * @slots: number of empty slots * @wait_aliveness_resp: aliveness wait queue * @intr_cause: translated interrupt cause */ diff --git a/drivers/misc/mei/hw.h b/drivers/misc/mei/hw.h index ea8de2a88b31..16fef6dc4dd7 100644 --- a/drivers/misc/mei/hw.h +++ b/drivers/misc/mei/hw.h @@ -109,6 +109,8 @@ enum mei_stop_reason_types { * @MEI_HBMS_NOT_ALLOWED : operation not allowed * @MEI_HBMS_ALREADY_STARTED : system is already started * @MEI_HBMS_NOT_STARTED : system not started + * + * @MEI_HBMS_MAX : sentinel */ enum mei_hbm_status { MEI_HBMS_SUCCESS = 0, diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c index 52d7f425ff8d..7901d076c127 100644 --- a/drivers/misc/mei/init.c +++ b/drivers/misc/mei/init.c @@ -59,8 +59,6 @@ const char *mei_pg_state_str(enum mei_pg_state state) * mei_cancel_work - Cancel mei background jobs * * @dev: the device structure - * - * Return: 0 on success or < 0 if the reset hasn't succeeded */ void mei_cancel_work(struct mei_device *dev) { @@ -75,6 +73,8 @@ EXPORT_SYMBOL_GPL(mei_cancel_work); * mei_reset - resets host and fw. * * @dev: the device structure + * + * Return: 0 on success or < 0 if the reset hasn't succeeded */ int mei_reset(struct mei_device *dev) { diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c index d8aa1d372f74..20c6c511f438 100644 --- a/drivers/misc/mei/interrupt.c +++ b/drivers/misc/mei/interrupt.c @@ -87,7 +87,7 @@ static bool mei_cl_is_reading(struct mei_cl *cl, struct mei_msg_hdr *mei_hdr) } /** - * mei_irq_read_client_message - process client message + * mei_cl_irq_read_msg - process client message * * @dev: the device structure * @mei_hdr: header of mei client message @@ -234,7 +234,7 @@ static int mei_cl_irq_disconnect(struct mei_cl *cl, struct mei_cl_cb *cb, /** - * mei_cl_irq_close - processes client read related operation from the + * mei_cl_irq_read - processes client read related operation from the * interrupt thread context - request for flow control credits * * @cl: client diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h index 563eebb62827..71744b16cc8c 100644 --- a/drivers/misc/mei/mei_dev.h +++ b/drivers/misc/mei/mei_dev.h @@ -129,11 +129,11 @@ enum mei_wd_states { /** * enum mei_cb_file_ops - file operation associated with the callback - * @MEI_FOP_READ - read - * @MEI_FOP_WRITE - write - * @MEI_FOP_CONNECT - connect - * @MEI_FOP_DISCONNECT - disconnect - * @MEI_FOP_DISCONNECT_RSP - disconnect response + * @MEI_FOP_READ: read + * @MEI_FOP_WRITE: write + * @MEI_FOP_CONNECT: connect + * @MEI_FOP_DISCONNECT: disconnect + * @MEI_FOP_DISCONNECT_RSP: disconnect response */ enum mei_cb_file_ops { MEI_FOP_READ = 0, @@ -189,6 +189,12 @@ struct mei_cl; * @list: link in callback queue * @cl: file client who is running this operation * @fop_type: file operation type + * @request_buffer: buffer to store request data + * @response_buffer: buffer to store response data + * @buf_idx: last read index + * @read_time: last read operation time stamp (iamthif) + * @file_object: pointer to file structure + * @internal: communication between driver and FW flag */ struct mei_cl_cb { struct list_head list; @@ -202,7 +208,29 @@ struct mei_cl_cb { u32 internal:1; }; -/* MEI client instance carried as file->private_data*/ +/** + * struct mei_cl - me client host representation + * carried in file->private_data + * + * @link: link in the clients list + * @dev: mei parent device + * @state: file operation state + * @tx_wait: wait queue for tx completion + * @rx_wait: wait queue for rx completion + * @wait: wait queue for management operation + * @status: connection status + * @cl_uuid: client uuid name + * @host_client_id: host id + * @me_client_id: me/fw id + * @mei_flow_ctrl_creds: transmit flow credentials + * @timer_count: watchdog timer for operation completion + * @reading_state: state of the rx + * @writing_state: state of the tx + * @read_cb: current pending reading callback + * + * @device: device on the mei client bus + * @device_link: link to bus clients + */ struct mei_cl { struct list_head link; struct mei_device *dev; @@ -211,7 +239,6 @@ struct mei_cl { wait_queue_head_t rx_wait; wait_queue_head_t wait; int status; - /* ID of client connected */ uuid_le cl_uuid; u8 host_client_id; u8 me_client_id; @@ -334,8 +361,10 @@ void mei_cl_bus_exit(void); * @dev: linux driver model device pointer * @cl: mei client * @ops: ME transport ops + * @event_work: async work to execute event callback * @event_cb: Drivers register this callback to get asynchronous ME * events (e.g. Rx buffer pending) notifications. + * @event_context: event callback run context * @events: Events bitmask sent to the driver. * @priv_data: client private data */ @@ -355,7 +384,7 @@ struct mei_cl_device { }; - /** +/** * enum mei_pg_event - power gating transition events * * @MEI_PG_EVENT_IDLE: the driver is not in power gating transition @@ -383,49 +412,102 @@ const char *mei_pg_state_str(enum mei_pg_state state); /** * struct mei_device - MEI private device struct - + * * @dev : device on a bus * @cdev : character device * @minor : minor number allocated for device * - * @reset_count : limits the number of consecutive resets - * @hbm_state : state of host bus message protocol + * @read_list : read completion list + * @write_list : write pending list + * @write_waiting_list : write completion list + * @ctrl_wr_list : pending control write list + * @ctrl_rd_list : pending control read list * - * @hbm_f_pg_supported : hbm feature pgi protocol + * @file_list : list of opened handles + * @open_handle_count: number of opened handles + * + * @device_lock : big device lock + * @timer_work : MEI timer delayed work (timeouts) + * + * @recvd_hw_ready : hw ready message received flag + * + * @wait_hw_ready : wait queue for receive HW ready message form FW + * @wait_pg : wait queue for receive PG message from FW + * @wait_hbm_start : wait queue for receive HBM start message from FW + * @wait_stop_wd : wait queue for receive WD stop message from FW + * + * @reset_count : number of consecutive resets + * @dev_state : device state + * @hbm_state : state of host bus message protocol + * @init_clients_timer : HBM init handshake timeout * * @pg_event : power gating event - * @mem_addr : mem mapped base register address - + * @pg_domain : runtime PM domain + * + * @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 * @wr_msg : the buffer for hbm control messages + * + * @version : HBM protocol version in use + * @hbm_f_pg_supported : hbm feature pgi protocol + * + * @me_clients : list of FW clients + * @me_clients_map : FW clients bit map + * @host_clients_map : host clients id pool + * @me_client_index : last FW client index in enumeration + * + * @wd_cl : watchdog client + * @wd_state : watchdog client state + * @wd_pending : watchdog command is pending + * @wd_timeout : watchdog expiration timeout + * @wd_data : watchdog message buffer + * + * @amthif_cmd_list : amthif list for cmd waiting + * @amthif_rd_complete_list : amthif list for reading completed cmd data + * @iamthif_file_object : file for current amthif operation + * @iamthif_cl : amthif host client + * @iamthif_current_cb : amthif current operation callback + * @iamthif_open_count : number of opened amthif connections + * @iamthif_mtu : amthif client max message length + * @iamthif_timer : time stamp of current amthif command completion + * @iamthif_stall_timer : timer to detect amthif hang + * @iamthif_msg_buf : amthif current message buffer + * @iamthif_msg_buf_size : size of current amthif message request buffer + * @iamthif_msg_buf_index : current index in amthif message request buffer + * @iamthif_state : amthif processor state + * @iamthif_flow_control_pending: amthif waits for flow control + * @iamthif_ioctl : wait for completion if amthif control message + * @iamthif_canceled : current amthif command is canceled + * + * @init_work : work item for the device init + * @reset_work : work item for the device reset + * + * @device_list : mei client bus list + * + * @dbgfs_dir : debugfs mei root directory + * + * @ops: : hw specific operations + * @hw : hw specific data */ struct mei_device { struct device *dev; struct cdev cdev; int minor; - /* - * lists of queues - */ - /* array of pointers to aio lists */ - struct mei_cl_cb read_list; /* driver read queue */ - struct mei_cl_cb write_list; /* driver write queue */ - struct mei_cl_cb write_waiting_list; /* write waiting queue */ - struct mei_cl_cb ctrl_wr_list; /* managed write IOCTL list */ - struct mei_cl_cb ctrl_rd_list; /* managed read IOCTL list */ + struct mei_cl_cb read_list; + struct mei_cl_cb write_list; + struct mei_cl_cb write_waiting_list; + struct mei_cl_cb ctrl_wr_list; + struct mei_cl_cb ctrl_rd_list; - /* - * list of files - */ struct list_head file_list; long open_handle_count; - /* - * lock for the device - */ - struct mutex device_lock; /* device lock */ - struct delayed_work timer_work; /* MEI timer delayed work (timeouts) */ + struct mutex device_lock; + struct delayed_work timer_work; bool recvd_hw_ready; /* @@ -452,7 +534,7 @@ struct mei_device { struct dev_pm_domain pg_domain; #endif /* CONFIG_PM_RUNTIME */ - unsigned char rd_msg_buf[MEI_RD_MSG_BUF_SIZE]; /* control messages */ + unsigned char rd_msg_buf[MEI_RD_MSG_BUF_SIZE]; u32 rd_msg_hdr; /* write buffer */ @@ -522,6 +604,7 @@ 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 + * * @length: size of the messages in bytes * * Return: number of slots @@ -532,8 +615,10 @@ static inline u32 mei_data2slots(size_t length) } /** - * mei_slots2data- get data in slots - bytes from slots + * mei_slots2data - get data in slots - bytes from slots + * * @slots: number of available slots + * * Return: number of bytes in slots */ static inline u32 mei_slots2data(int slots) diff --git a/drivers/misc/mei/nfc.c b/drivers/misc/mei/nfc.c index 288665eb4862..622654323177 100644 --- a/drivers/misc/mei/nfc.c +++ b/drivers/misc/mei/nfc.c @@ -94,9 +94,14 @@ struct mei_nfc_hci_hdr { * @cl: NFC host client * @cl_info: NFC info host client * @init_work: perform connection to the info client + * @send_wq: send completion wait queue * @fw_ivn: NFC Interface Version Number * @vendor_id: NFC manufacturer ID * @radio_type: NFC radio type + * @bus_name: bus name + * + * @req_id: message counter + * @recv_req_id: reception message counter */ struct mei_nfc_dev { struct mei_cl *cl; diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c index 532d39300498..badd4d8d2135 100644 --- a/drivers/misc/mei/pci-me.c +++ b/drivers/misc/mei/pci-me.c @@ -98,7 +98,7 @@ static inline void mei_me_unset_pm_domain(struct mei_device *dev) {} #endif /* CONFIG_PM_RUNTIME */ /** - * mei_quirk_probe - probe for devices that doesn't valid ME interface + * mei_me_quirk_probe - probe for devices that doesn't valid ME interface * * @pdev: PCI device structure * @cfg: per generation config @@ -117,7 +117,7 @@ static bool mei_me_quirk_probe(struct pci_dev *pdev, } /** - * mei_probe - Device Initialization Routine + * mei_me_probe - Device Initialization Routine * * @pdev: PCI device structure * @ent: entry in kcs_pci_tbl @@ -249,7 +249,7 @@ end: } /** - * mei_remove - Device Removal Routine + * mei_me_remove - Device Removal Routine * * @pdev: PCI device structure * |