| /****************************************************************************** |
| * |
| * This file is provided under a dual BSD/GPLv2 license. When using or |
| * redistributing this file, you may do so under either license. |
| * |
| * GPL LICENSE SUMMARY |
| * |
| * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved. |
| * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH |
| * Copyright(c) 2016 - 2017 Intel Deutschland GmbH |
| * Copyright(c) 2018 - 2019 Intel Corporation |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * The full GNU General Public License is included in this distribution |
| * in the file called COPYING. |
| * |
| * Contact Information: |
| * Intel Linux Wireless <linuxwifi@intel.com> |
| * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| * |
| * BSD LICENSE |
| * |
| * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. |
| * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH |
| * Copyright(c) 2016 - 2017 Intel Deutschland GmbH |
| * Copyright(c) 2018 - 2019 Intel Corporation |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name Intel Corporation nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| *****************************************************************************/ |
| #ifndef __iwl_trans_h__ |
| #define __iwl_trans_h__ |
| |
| #include <linux/ieee80211.h> |
| #include <linux/mm.h> /* for page_address */ |
| #include <linux/lockdep.h> |
| #include <linux/kernel.h> |
| |
| #include "iwl-debug.h" |
| #include "iwl-config.h" |
| #include "fw/img.h" |
| #include "iwl-op-mode.h" |
| #include "fw/api/cmdhdr.h" |
| #include "fw/api/txq.h" |
| #include "fw/api/dbg-tlv.h" |
| #include "iwl-dbg-tlv.h" |
| |
| /** |
| * DOC: Transport layer - what is it ? |
| * |
| * The transport layer is the layer that deals with the HW directly. It provides |
| * an abstraction of the underlying HW to the upper layer. The transport layer |
| * doesn't provide any policy, algorithm or anything of this kind, but only |
| * mechanisms to make the HW do something. It is not completely stateless but |
| * close to it. |
| * We will have an implementation for each different supported bus. |
| */ |
| |
| /** |
| * DOC: Life cycle of the transport layer |
| * |
| * The transport layer has a very precise life cycle. |
| * |
| * 1) A helper function is called during the module initialization and |
| * registers the bus driver's ops with the transport's alloc function. |
| * 2) Bus's probe calls to the transport layer's allocation functions. |
| * Of course this function is bus specific. |
| * 3) This allocation functions will spawn the upper layer which will |
| * register mac80211. |
| * |
| * 4) At some point (i.e. mac80211's start call), the op_mode will call |
| * the following sequence: |
| * start_hw |
| * start_fw |
| * |
| * 5) Then when finished (or reset): |
| * stop_device |
| * |
| * 6) Eventually, the free function will be called. |
| */ |
| |
| #define IWL_TRANS_FW_DBG_DOMAIN(trans) IWL_FW_INI_DOMAIN_ALWAYS_ON |
| |
| #define FH_RSCSR_FRAME_SIZE_MSK 0x00003FFF /* bits 0-13 */ |
| #define FH_RSCSR_FRAME_INVALID 0x55550000 |
| #define FH_RSCSR_FRAME_ALIGN 0x40 |
| #define FH_RSCSR_RPA_EN BIT(25) |
| #define FH_RSCSR_RADA_EN BIT(26) |
| #define FH_RSCSR_RXQ_POS 16 |
| #define FH_RSCSR_RXQ_MASK 0x3F0000 |
| |
| struct iwl_rx_packet { |
| /* |
| * The first 4 bytes of the RX frame header contain both the RX frame |
| * size and some flags. |
| * Bit fields: |
| * 31: flag flush RB request |
| * 30: flag ignore TC (terminal counter) request |
| * 29: flag fast IRQ request |
| * 28-27: Reserved |
| * 26: RADA enabled |
| * 25: Offload enabled |
| * 24: RPF enabled |
| * 23: RSS enabled |
| * 22: Checksum enabled |
| * 21-16: RX queue |
| * 15-14: Reserved |
| * 13-00: RX frame size |
| */ |
| __le32 len_n_flags; |
| struct iwl_cmd_header hdr; |
| u8 data[]; |
| } __packed; |
| |
| static inline u32 iwl_rx_packet_len(const struct iwl_rx_packet *pkt) |
| { |
| return le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; |
| } |
| |
| static inline u32 iwl_rx_packet_payload_len(const struct iwl_rx_packet *pkt) |
| { |
| return iwl_rx_packet_len(pkt) - sizeof(pkt->hdr); |
| } |
| |
| /** |
| * enum CMD_MODE - how to send the host commands ? |
| * |
| * @CMD_ASYNC: Return right away and don't wait for the response |
| * @CMD_WANT_SKB: Not valid with CMD_ASYNC. The caller needs the buffer of |
| * the response. The caller needs to call iwl_free_resp when done. |
| * @CMD_WANT_ASYNC_CALLBACK: the op_mode's async callback function must be |
| * called after this command completes. Valid only with CMD_ASYNC. |
| */ |
| enum CMD_MODE { |
| CMD_ASYNC = BIT(0), |
| CMD_WANT_SKB = BIT(1), |
| CMD_SEND_IN_RFKILL = BIT(2), |
| CMD_WANT_ASYNC_CALLBACK = BIT(3), |
| }; |
| |
| #define DEF_CMD_PAYLOAD_SIZE 320 |
| |
| /** |
| * struct iwl_device_cmd |
| * |
| * For allocation of the command and tx queues, this establishes the overall |
| * size of the largest command we send to uCode, except for commands that |
| * aren't fully copied and use other TFD space. |
| */ |
| struct iwl_device_cmd { |
| union { |
| struct { |
| struct iwl_cmd_header hdr; /* uCode API */ |
| u8 payload[DEF_CMD_PAYLOAD_SIZE]; |
| }; |
| struct { |
| struct iwl_cmd_header_wide hdr_wide; |
| u8 payload_wide[DEF_CMD_PAYLOAD_SIZE - |
| sizeof(struct iwl_cmd_header_wide) + |
| sizeof(struct iwl_cmd_header)]; |
| }; |
| }; |
| } __packed; |
| |
| /** |
| * struct iwl_device_tx_cmd - buffer for TX command |
| * @hdr: the header |
| * @payload: the payload placeholder |
| * |
| * The actual structure is sized dynamically according to need. |
| */ |
| struct iwl_device_tx_cmd { |
| struct iwl_cmd_header hdr; |
| u8 payload[]; |
| } __packed; |
| |
| #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd)) |
| |
| /* |
| * number of transfer buffers (fragments) per transmit frame descriptor; |
| * this is just the driver's idea, the hardware supports 20 |
| */ |
| #define IWL_MAX_CMD_TBS_PER_TFD 2 |
| |
| /** |
| * enum iwl_hcmd_dataflag - flag for each one of the chunks of the command |
| * |
| * @IWL_HCMD_DFL_NOCOPY: By default, the command is copied to the host command's |
| * ring. The transport layer doesn't map the command's buffer to DMA, but |
| * rather copies it to a previously allocated DMA buffer. This flag tells |
| * the transport layer not to copy the command, but to map the existing |
| * buffer (that is passed in) instead. This saves the memcpy and allows |
| * commands that are bigger than the fixed buffer to be submitted. |
| * Note that a TFD entry after a NOCOPY one cannot be a normal copied one. |
| * @IWL_HCMD_DFL_DUP: Only valid without NOCOPY, duplicate the memory for this |
| * chunk internally and free it again after the command completes. This |
| * can (currently) be used only once per command. |
| * Note that a TFD entry after a DUP one cannot be a normal copied one. |
| */ |
| enum iwl_hcmd_dataflag { |
| IWL_HCMD_DFL_NOCOPY = BIT(0), |
| IWL_HCMD_DFL_DUP = BIT(1), |
| }; |
| |
| enum iwl_error_event_table_status { |
| IWL_ERROR_EVENT_TABLE_LMAC1 = BIT(0), |
| IWL_ERROR_EVENT_TABLE_LMAC2 = BIT(1), |
| IWL_ERROR_EVENT_TABLE_UMAC = BIT(2), |
| }; |
| |
| /** |
| * struct iwl_host_cmd - Host command to the uCode |
| * |
| * @data: array of chunks that composes the data of the host command |
| * @resp_pkt: response packet, if %CMD_WANT_SKB was set |
| * @_rx_page_order: (internally used to free response packet) |
| * @_rx_page_addr: (internally used to free response packet) |
| * @flags: can be CMD_* |
| * @len: array of the lengths of the chunks in data |
| * @dataflags: IWL_HCMD_DFL_* |
| * @id: command id of the host command, for wide commands encoding the |
| * version and group as well |
| */ |
| struct iwl_host_cmd { |
| const void *data[IWL_MAX_CMD_TBS_PER_TFD]; |
| struct iwl_rx_packet *resp_pkt; |
| unsigned long _rx_page_addr; |
| u32 _rx_page_order; |
| |
| u32 flags; |
| u32 id; |
| u16 len[IWL_MAX_CMD_TBS_PER_TFD]; |
| u8 dataflags[IWL_MAX_CMD_TBS_PER_TFD]; |
| }; |
| |
| static inline void iwl_free_resp(struct iwl_host_cmd *cmd) |
| { |
| free_pages(cmd->_rx_page_addr, cmd->_rx_page_order); |
| } |
| |
| struct iwl_rx_cmd_buffer { |
| struct page *_page; |
| int _offset; |
| bool _page_stolen; |
| u32 _rx_page_order; |
| unsigned int truesize; |
| }; |
| |
| static inline void *rxb_addr(struct iwl_rx_cmd_buffer *r) |
| { |
| return (void *)((unsigned long)page_address(r->_page) + r->_offset); |
| } |
| |
| static inline int rxb_offset(struct iwl_rx_cmd_buffer *r) |
| { |
| return r->_offset; |
| } |
| |
| static inline struct page *rxb_steal_page(struct iwl_rx_cmd_buffer *r) |
| { |
| r->_page_stolen = true; |
| get_page(r->_page); |
| return r->_page; |
| } |
| |
| static inline void iwl_free_rxb(struct iwl_rx_cmd_buffer *r) |
| { |
| __free_pages(r->_page, r->_rx_page_order); |
| } |
| |
| #define MAX_NO_RECLAIM_CMDS 6 |
| |
| #define IWL_MASK(lo, hi) ((1 << (hi)) | ((1 << (hi)) - (1 << (lo)))) |
| |
| /* |
| * Maximum number of HW queues the transport layer |
| * currently supports |
| */ |
| #define IWL_MAX_HW_QUEUES 32 |
| #define IWL_MAX_TVQM_QUEUES 512 |
| |
| #define IWL_MAX_TID_COUNT 8 |
| #define IWL_MGMT_TID 15 |
| #define IWL_FRAME_LIMIT 64 |
| #define IWL_MAX_RX_HW_QUEUES 16 |
| |
| /** |
| * enum iwl_wowlan_status - WoWLAN image/device status |
| * @IWL_D3_STATUS_ALIVE: firmware is still running after resume |
| * @IWL_D3_STATUS_RESET: device was reset while suspended |
| */ |
| enum iwl_d3_status { |
| IWL_D3_STATUS_ALIVE, |
| IWL_D3_STATUS_RESET, |
| }; |
| |
| /** |
| * enum iwl_trans_status: transport status flags |
| * @STATUS_SYNC_HCMD_ACTIVE: a SYNC command is being processed |
| * @STATUS_DEVICE_ENABLED: APM is enabled |
| * @STATUS_TPOWER_PMI: the device might be asleep (need to wake it up) |
| * @STATUS_INT_ENABLED: interrupts are enabled |
| * @STATUS_RFKILL_HW: the actual HW state of the RF-kill switch |
| * @STATUS_RFKILL_OPMODE: RF-kill state reported to opmode |
| * @STATUS_FW_ERROR: the fw is in error state |
| * @STATUS_TRANS_GOING_IDLE: shutting down the trans, only special commands |
| * are sent |
| * @STATUS_TRANS_IDLE: the trans is idle - general commands are not to be sent |
| * @STATUS_TRANS_DEAD: trans is dead - avoid any read/write operation |
| */ |
| enum iwl_trans_status { |
| STATUS_SYNC_HCMD_ACTIVE, |
| STATUS_DEVICE_ENABLED, |
| STATUS_TPOWER_PMI, |
| STATUS_INT_ENABLED, |
| STATUS_RFKILL_HW, |
| STATUS_RFKILL_OPMODE, |
| STATUS_FW_ERROR, |
| STATUS_TRANS_GOING_IDLE, |
| STATUS_TRANS_IDLE, |
| STATUS_TRANS_DEAD, |
| }; |
| |
| static inline int |
| iwl_trans_get_rb_size_order(enum iwl_amsdu_size rb_size) |
| { |
| switch (rb_size) { |
| case IWL_AMSDU_2K: |
| return get_order(2 * 1024); |
| case IWL_AMSDU_4K: |
| return get_order(4 * 1024); |
| case IWL_AMSDU_8K: |
| return get_order(8 * 1024); |
| case IWL_AMSDU_12K: |
| return get_order(12 * 1024); |
| default: |
| WARN_ON(1); |
| return -1; |
| } |
| } |
| |
| static inline int |
| iwl_trans_get_rb_size(enum iwl_amsdu_size rb_size) |
| { |
| switch (rb_size) { |
| case IWL_AMSDU_2K: |
| return 2 * 1024; |
| case IWL_AMSDU_4K: |
| return 4 * 1024; |
| case IWL_AMSDU_8K: |
| return 8 * 1024; |
| case IWL_AMSDU_12K: |
| return 12 * 1024; |
| default: |
| WARN_ON(1); |
| return 0; |
| } |
| } |
| |
| struct iwl_hcmd_names { |
| u8 cmd_id; |
| const char *const cmd_name; |
| }; |
| |
| #define HCMD_NAME(x) \ |
| { .cmd_id = x, .cmd_name = #x } |
| |
| struct iwl_hcmd_arr { |
| const struct iwl_hcmd_names *arr; |
| int size; |
| }; |
| |
| #define HCMD_ARR(x) \ |
| { .arr = x, .size = ARRAY_SIZE(x) } |
| |
| /** |
| * struct iwl_trans_config - transport configuration |
| * |
| * @op_mode: pointer to the upper layer. |
| * @cmd_queue: the index of the command queue. |
| * Must be set before start_fw. |
| * @cmd_fifo: the fifo for host commands |
| * @cmd_q_wdg_timeout: the timeout of the watchdog timer for the command queue. |
| * @no_reclaim_cmds: Some devices erroneously don't set the |
| * SEQ_RX_FRAME bit on some notifications, this is the |
| * list of such notifications to filter. Max length is |
| * %MAX_NO_RECLAIM_CMDS. |
| * @n_no_reclaim_cmds: # of commands in list |
| * @rx_buf_size: RX buffer size needed for A-MSDUs |
| * if unset 4k will be the RX buffer size |
| * @bc_table_dword: set to true if the BC table expects the byte count to be |
| * in DWORD (as opposed to bytes) |
| * @scd_set_active: should the transport configure the SCD for HCMD queue |
| * @sw_csum_tx: transport should compute the TCP checksum |
| * @command_groups: array of command groups, each member is an array of the |
| * commands in the group; for debugging only |
| * @command_groups_size: number of command groups, to avoid illegal access |
| * @cb_data_offs: offset inside skb->cb to store transport data at, must have |
| * space for at least two pointers |
| */ |
| struct iwl_trans_config { |
| struct iwl_op_mode *op_mode; |
| |
| u8 cmd_queue; |
| u8 cmd_fifo; |
| unsigned int cmd_q_wdg_timeout; |
| const u8 *no_reclaim_cmds; |
| unsigned int n_no_reclaim_cmds; |
| |
| enum iwl_amsdu_size rx_buf_size; |
| bool bc_table_dword; |
| bool scd_set_active; |
| bool sw_csum_tx; |
| const struct iwl_hcmd_arr *command_groups; |
| int command_groups_size; |
| |
| u8 cb_data_offs; |
| }; |
| |
| struct iwl_trans_dump_data { |
| u32 len; |
| u8 data[]; |
| }; |
| |
| struct iwl_trans; |
| |
| struct iwl_trans_txq_scd_cfg { |
| u8 fifo; |
| u8 sta_id; |
| u8 tid; |
| bool aggregate; |
| int frame_limit; |
| }; |
| |
| /** |
| * struct iwl_trans_rxq_dma_data - RX queue DMA data |
| * @fr_bd_cb: DMA address of free BD cyclic buffer |
| * @fr_bd_wid: Initial write index of the free BD cyclic buffer |
| * @urbd_stts_wrptr: DMA address of urbd_stts_wrptr |
| * @ur_bd_cb: DMA address of used BD cyclic buffer |
| */ |
| struct iwl_trans_rxq_dma_data { |
| u64 fr_bd_cb; |
| u32 fr_bd_wid; |
| u64 urbd_stts_wrptr; |
| u64 ur_bd_cb; |
| }; |
| |
| /** |
| * struct iwl_trans_ops - transport specific operations |
| * |
| * All the handlers MUST be implemented |
| * |
| * @start_hw: starts the HW. From that point on, the HW can send interrupts. |
| * May sleep. |
| * @op_mode_leave: Turn off the HW RF kill indication if on |
| * May sleep |
| * @start_fw: allocates and inits all the resources for the transport |
| * layer. Also kick a fw image. |
| * May sleep |
| * @fw_alive: called when the fw sends alive notification. If the fw provides |
| * the SCD base address in SRAM, then provide it here, or 0 otherwise. |
| * May sleep |
| * @stop_device: stops the whole device (embedded CPU put to reset) and stops |
| * the HW. From that point on, the HW will be stopped but will still issue |
| * an interrupt if the HW RF kill switch is triggered. |
| * This callback must do the right thing and not crash even if %start_hw() |
| * was called but not &start_fw(). May sleep. |
| * @d3_suspend: put the device into the correct mode for WoWLAN during |
| * suspend. This is optional, if not implemented WoWLAN will not be |
| * supported. This callback may sleep. |
| * @d3_resume: resume the device after WoWLAN, enabling the opmode to |
| * talk to the WoWLAN image to get its status. This is optional, if not |
| * implemented WoWLAN will not be supported. This callback may sleep. |
| * @send_cmd:send a host command. Must return -ERFKILL if RFkill is asserted. |
| * If RFkill is asserted in the middle of a SYNC host command, it must |
| * return -ERFKILL straight away. |
| * May sleep only if CMD_ASYNC is not set |
| * @tx: send an skb. The transport relies on the op_mode to zero the |
| * the ieee80211_tx_info->driver_data. If the MPDU is an A-MSDU, all |
| * the CSUM will be taken care of (TCP CSUM and IP header in case of |
| * IPv4). If the MPDU is a single MSDU, the op_mode must compute the IP |
| * header if it is IPv4. |
| * Must be atomic |
| * @reclaim: free packet until ssn. Returns a list of freed packets. |
| * Must be atomic |
| * @txq_enable: setup a queue. To setup an AC queue, use the |
| * iwl_trans_ac_txq_enable wrapper. fw_alive must have been called before |
| * this one. The op_mode must not configure the HCMD queue. The scheduler |
| * configuration may be %NULL, in which case the hardware will not be |
| * configured. If true is returned, the operation mode needs to increment |
| * the sequence number of the packets routed to this queue because of a |
| * hardware scheduler bug. May sleep. |
| * @txq_disable: de-configure a Tx queue to send AMPDUs |
| * Must be atomic |
| * @txq_set_shared_mode: change Tx queue shared/unshared marking |
| * @wait_tx_queues_empty: wait until tx queues are empty. May sleep. |
| * @wait_txq_empty: wait until specific tx queue is empty. May sleep. |
| * @freeze_txq_timer: prevents the timer of the queue from firing until the |
| * queue is set to awake. Must be atomic. |
| * @block_txq_ptrs: stop updating the write pointers of the Tx queues. Note |
| * that the transport needs to refcount the calls since this function |
| * will be called several times with block = true, and then the queues |
| * need to be unblocked only after the same number of calls with |
| * block = false. |
| * @write8: write a u8 to a register at offset ofs from the BAR |
| * @write32: write a u32 to a register at offset ofs from the BAR |
| * @read32: read a u32 register at offset ofs from the BAR |
| * @read_prph: read a DWORD from a periphery register |
| * @write_prph: write a DWORD to a periphery register |
| * @read_mem: read device's SRAM in DWORD |
| * @write_mem: write device's SRAM in DWORD. If %buf is %NULL, then the memory |
| * will be zeroed. |
| * @configure: configure parameters required by the transport layer from |
| * the op_mode. May be called several times before start_fw, can't be |
| * called after that. |
| * @set_pmi: set the power pmi state |
| * @grab_nic_access: wake the NIC to be able to access non-HBUS regs. |
| * Sleeping is not allowed between grab_nic_access and |
| * release_nic_access. |
| * @release_nic_access: let the NIC go to sleep. The "flags" parameter |
| * must be the same one that was sent before to the grab_nic_access. |
| * @set_bits_mask - set SRAM register according to value and mask. |
| * @dump_data: return a vmalloc'ed buffer with debug data, maybe containing last |
| * TX'ed commands and similar. The buffer will be vfree'd by the caller. |
| * Note that the transport must fill in the proper file headers. |
| * @debugfs_cleanup: used in the driver unload flow to make a proper cleanup |
| * of the trans debugfs |
| */ |
| struct iwl_trans_ops { |
| |
| int (*start_hw)(struct iwl_trans *iwl_trans); |
| void (*op_mode_leave)(struct iwl_trans *iwl_trans); |
| int (*start_fw)(struct iwl_trans *trans, const struct fw_img *fw, |
| bool run_in_rfkill); |
| void (*fw_alive)(struct iwl_trans *trans, u32 scd_addr); |
| void (*stop_device)(struct iwl_trans *trans); |
| |
| int (*d3_suspend)(struct iwl_trans *trans, bool test, bool reset); |
| int (*d3_resume)(struct iwl_trans *trans, enum iwl_d3_status *status, |
| bool test, bool reset); |
| |
| int (*send_cmd)(struct iwl_trans *trans, struct iwl_host_cmd *cmd); |
| |
| int (*tx)(struct iwl_trans *trans, struct sk_buff *skb, |
| struct iwl_device_tx_cmd *dev_cmd, int queue); |
| void (*reclaim)(struct iwl_trans *trans, int queue, int ssn, |
| struct sk_buff_head *skbs); |
| |
| void (*set_q_ptrs)(struct iwl_trans *trans, int queue, int ptr); |
| |
| bool (*txq_enable)(struct iwl_trans *trans, int queue, u16 ssn, |
| const struct iwl_trans_txq_scd_cfg *cfg, |
| unsigned int queue_wdg_timeout); |
| void (*txq_disable)(struct iwl_trans *trans, int queue, |
| bool configure_scd); |
| /* 22000 functions */ |
| int (*txq_alloc)(struct iwl_trans *trans, |
| __le16 flags, u8 sta_id, u8 tid, |
| int cmd_id, int size, |
| unsigned int queue_wdg_timeout); |
| void (*txq_free)(struct iwl_trans *trans, int queue); |
| int (*rxq_dma_data)(struct iwl_trans *trans, int queue, |
| struct iwl_trans_rxq_dma_data *data); |
| |
| void (*txq_set_shared_mode)(struct iwl_trans *trans, u32 txq_id, |
| bool shared); |
| |
| int (*wait_tx_queues_empty)(struct iwl_trans *trans, u32 txq_bm); |
| int (*wait_txq_empty)(struct iwl_trans *trans, int queue); |
| void (*freeze_txq_timer)(struct iwl_trans *trans, unsigned long txqs, |
| bool freeze); |
| void (*block_txq_ptrs)(struct iwl_trans *trans, bool block); |
| |
| void (*write8)(struct iwl_trans *trans, u32 ofs, u8 val); |
| void (*write32)(struct iwl_trans *trans, u32 ofs, u32 val); |
| u32 (*read32)(struct iwl_trans *trans, u32 ofs); |
| u32 (*read_prph)(struct iwl_trans *trans, u32 ofs); |
| void (*write_prph)(struct iwl_trans *trans, u32 ofs, u32 val); |
| int (*read_mem)(struct iwl_trans *trans, u32 addr, |
| void *buf, int dwords); |
| int (*write_mem)(struct iwl_trans *trans, u32 addr, |
| const void *buf, int dwords); |
| void (*configure)(struct iwl_trans *trans, |
| const struct iwl_trans_config *trans_cfg); |
| void (*set_pmi)(struct iwl_trans *trans, bool state); |
| void (*sw_reset)(struct iwl_trans *trans); |
| bool (*grab_nic_access)(struct iwl_trans *trans, unsigned long *flags); |
| void (*release_nic_access)(struct iwl_trans *trans, |
| unsigned long *flags); |
| void (*set_bits_mask)(struct iwl_trans *trans, u32 reg, u32 mask, |
| u32 value); |
| int (*suspend)(struct iwl_trans *trans); |
| void (*resume)(struct iwl_trans *trans); |
| |
| struct iwl_trans_dump_data *(*dump_data)(struct iwl_trans *trans, |
| u32 dump_mask); |
| void (*debugfs_cleanup)(struct iwl_trans *trans); |
| void (*sync_nmi)(struct iwl_trans *trans); |
| }; |
| |
| /** |
| * enum iwl_trans_state - state of the transport layer |
| * |
| * @IWL_TRANS_NO_FW: no fw has sent an alive response |
| * @IWL_TRANS_FW_ALIVE: a fw has sent an alive response |
| */ |
| enum iwl_trans_state { |
| IWL_TRANS_NO_FW = 0, |
| IWL_TRANS_FW_ALIVE = 1, |
| }; |
| |
| /** |
| * DOC: Platform power management |
| * |
| * In system-wide power management the entire platform goes into a low |
| * power state (e.g. idle or suspend to RAM) at the same time and the |
| * device is configured as a wakeup source for the entire platform. |
| * This is usually triggered by userspace activity (e.g. the user |
| * presses the suspend button or a power management daemon decides to |
| * put the platform in low power mode). The device's behavior in this |
| * mode is dictated by the wake-on-WLAN configuration. |
| * |
| * The terms used for the device's behavior are as follows: |
| * |
| * - D0: the device is fully powered and the host is awake; |
| * - D3: the device is in low power mode and only reacts to |
| * specific events (e.g. magic-packet received or scan |
| * results found); |
| * |
| * These terms reflect the power modes in the firmware and are not to |
| * be confused with the physical device power state. |
| */ |
| |
| /** |
| * enum iwl_plat_pm_mode - platform power management mode |
| * |
| * This enumeration describes the device's platform power management |
| * behavior when in system-wide suspend (i.e WoWLAN). |
| * |
| * @IWL_PLAT_PM_MODE_DISABLED: power management is disabled for this |
| * device. In system-wide suspend mode, it means that the all |
| * connections will be closed automatically by mac80211 before |
| * the platform is suspended. |
| * @IWL_PLAT_PM_MODE_D3: the device goes into D3 mode (i.e. WoWLAN). |
| */ |
| enum iwl_plat_pm_mode { |
| IWL_PLAT_PM_MODE_DISABLED, |
| IWL_PLAT_PM_MODE_D3, |
| }; |
| |
| /** |
| * enum iwl_ini_cfg_state |
| * @IWL_INI_CFG_STATE_NOT_LOADED: no debug cfg was given |
| * @IWL_INI_CFG_STATE_LOADED: debug cfg was found and loaded |
| * @IWL_INI_CFG_STATE_CORRUPTED: debug cfg was found and some of the TLVs |
| * are corrupted. The rest of the debug TLVs will still be used |
| */ |
| enum iwl_ini_cfg_state { |
| IWL_INI_CFG_STATE_NOT_LOADED, |
| IWL_INI_CFG_STATE_LOADED, |
| IWL_INI_CFG_STATE_CORRUPTED, |
| }; |
| |
| /* Max time to wait for nmi interrupt */ |
| #define IWL_TRANS_NMI_TIMEOUT (HZ / 4) |
| |
| /** |
| * struct iwl_dram_data |
| * @physical: page phy pointer |
| * @block: pointer to the allocated block/page |
| * @size: size of the block/page |
| */ |
| struct iwl_dram_data { |
| dma_addr_t physical; |
| void *block; |
| int size; |
| }; |
| |
| /** |
| * struct iwl_fw_mon - fw monitor per allocation id |
| * @num_frags: number of fragments |
| * @frags: an array of DRAM buffer fragments |
| */ |
| struct iwl_fw_mon { |
| u32 num_frags; |
| struct iwl_dram_data *frags; |
| }; |
| |
| /** |
| * struct iwl_self_init_dram - dram data used by self init process |
| * @fw: lmac and umac dram data |
| * @fw_cnt: total number of items in array |
| * @paging: paging dram data |
| * @paging_cnt: total number of items in array |
| */ |
| struct iwl_self_init_dram { |
| struct iwl_dram_data *fw; |
| int fw_cnt; |
| struct iwl_dram_data *paging; |
| int paging_cnt; |
| }; |
| |
| /** |
| * struct iwl_trans_debug - transport debug related data |
| * |
| * @n_dest_reg: num of reg_ops in %dbg_dest_tlv |
| * @rec_on: true iff there is a fw debug recording currently active |
| * @dest_tlv: points to the destination TLV for debug |
| * @conf_tlv: array of pointers to configuration TLVs for debug |
| * @trigger_tlv: array of pointers to triggers TLVs for debug |
| * @lmac_error_event_table: addrs of lmacs error tables |
| * @umac_error_event_table: addr of umac error table |
| * @error_event_table_tlv_status: bitmap that indicates what error table |
| * pointers was recevied via TLV. uses enum &iwl_error_event_table_status |
| * @internal_ini_cfg: internal debug cfg state. Uses &enum iwl_ini_cfg_state |
| * @external_ini_cfg: external debug cfg state. Uses &enum iwl_ini_cfg_state |
| * @fw_mon_cfg: debug buffer allocation configuration |
| * @fw_mon_ini: DRAM buffer fragments per allocation id |
| * @fw_mon: DRAM buffer for firmware monitor |
| * @hw_error: equals true if hw error interrupt was received from the FW |
| * @ini_dest: debug monitor destination uses &enum iwl_fw_ini_buffer_location |
| * @active_regions: active regions |
| * @debug_info_tlv_list: list of debug info TLVs |
| * @time_point: array of debug time points |
| * @periodic_trig_list: periodic triggers list |
| * @domains_bitmap: bitmap of active domains other than |
| * &IWL_FW_INI_DOMAIN_ALWAYS_ON |
| */ |
| struct iwl_trans_debug { |
| u8 n_dest_reg; |
| bool rec_on; |
| |
| const struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv; |
| const struct iwl_fw_dbg_conf_tlv *conf_tlv[FW_DBG_CONF_MAX]; |
| struct iwl_fw_dbg_trigger_tlv * const *trigger_tlv; |
| |
| u32 lmac_error_event_table[2]; |
| u32 umac_error_event_table; |
| unsigned int error_event_table_tlv_status; |
| |
| enum iwl_ini_cfg_state internal_ini_cfg; |
| enum iwl_ini_cfg_state external_ini_cfg; |
| |
| struct iwl_fw_ini_allocation_tlv fw_mon_cfg[IWL_FW_INI_ALLOCATION_NUM]; |
| struct iwl_fw_mon fw_mon_ini[IWL_FW_INI_ALLOCATION_NUM]; |
| |
| struct iwl_dram_data fw_mon; |
| |
| bool hw_error; |
| enum iwl_fw_ini_buffer_location ini_dest; |
| |
| struct iwl_ucode_tlv *active_regions[IWL_FW_INI_MAX_REGION_ID]; |
| struct list_head debug_info_tlv_list; |
| struct iwl_dbg_tlv_time_point_data |
| time_point[IWL_FW_INI_TIME_POINT_NUM]; |
| struct list_head periodic_trig_list; |
| |
| u32 domains_bitmap; |
| }; |
| |
| /** |
| * struct iwl_trans - transport common data |
| * |
| * @ops - pointer to iwl_trans_ops |
| * @op_mode - pointer to the op_mode |
| * @trans_cfg: the trans-specific configuration part |
| * @cfg - pointer to the configuration |
| * @drv - pointer to iwl_drv |
| * @status: a bit-mask of transport status flags |
| * @dev - pointer to struct device * that represents the device |
| * @max_skb_frags: maximum number of fragments an SKB can have when transmitted. |
| * 0 indicates that frag SKBs (NETIF_F_SG) aren't supported. |
| * @hw_rf_id a u32 with the device RF ID |
| * @hw_id: a u32 with the ID of the device / sub-device. |
| * Set during transport allocation. |
| * @hw_id_str: a string with info about HW ID. Set during transport allocation. |
| * @pm_support: set to true in start_hw if link pm is supported |
| * @ltr_enabled: set to true if the LTR is enabled |
| * @wide_cmd_header: true when ucode supports wide command header format |
| * @num_rx_queues: number of RX queues allocated by the transport; |
| * the transport must set this before calling iwl_drv_start() |
| * @iml_len: the length of the image loader |
| * @iml: a pointer to the image loader itself |
| * @dev_cmd_pool: pool for Tx cmd allocation - for internal use only. |
| * The user should use iwl_trans_{alloc,free}_tx_cmd. |
| * @rx_mpdu_cmd: MPDU RX command ID, must be assigned by opmode before |
| * starting the firmware, used for tracing |
| * @rx_mpdu_cmd_hdr_size: used for tracing, amount of data before the |
| * start of the 802.11 header in the @rx_mpdu_cmd |
| * @dflt_pwr_limit: default power limit fetched from the platform (ACPI) |
| * @system_pm_mode: the system-wide power management mode in use. |
| * This mode is set dynamically, depending on the WoWLAN values |
| * configured from the userspace at runtime. |
| */ |
| struct iwl_trans { |
| const struct iwl_trans_ops *ops; |
| struct iwl_op_mode *op_mode; |
| const struct iwl_cfg_trans_params *trans_cfg; |
| const struct iwl_cfg *cfg; |
| struct iwl_drv *drv; |
| enum iwl_trans_state state; |
| unsigned long status; |
| |
| struct device *dev; |
| u32 max_skb_frags; |
| u32 hw_rev; |
| u32 hw_rf_id; |
| u32 hw_id; |
| char hw_id_str[52]; |
| |
| u8 rx_mpdu_cmd, rx_mpdu_cmd_hdr_size; |
| |
| bool pm_support; |
| bool ltr_enabled; |
| |
| const struct iwl_hcmd_arr *command_groups; |
| int command_groups_size; |
| bool wide_cmd_header; |
| |
| u8 num_rx_queues; |
| |
| size_t iml_len; |
| u8 *iml; |
| |
| /* The following fields are internal only */ |
| struct kmem_cache *dev_cmd_pool; |
| char dev_cmd_pool_name[50]; |
| |
| struct dentry *dbgfs_dir; |
| |
| #ifdef CONFIG_LOCKDEP |
| struct lockdep_map sync_cmd_lockdep_map; |
| #endif |
| |
| struct iwl_trans_debug dbg; |
| struct iwl_self_init_dram init_dram; |
| |
| enum iwl_plat_pm_mode system_pm_mode; |
| |
| const char *name; |
| |
| /* pointer to trans specific struct */ |
| /*Ensure that this pointer will always be aligned to sizeof pointer */ |
| char trans_specific[0] __aligned(sizeof(void *)); |
| }; |
| |
| const char *iwl_get_cmd_string(struct iwl_trans *trans, u32 id); |
| int iwl_cmd_groups_verify_sorted(const struct iwl_trans_config *trans); |
| |
| static inline void iwl_trans_configure(struct iwl_trans *trans, |
| const struct iwl_trans_config *trans_cfg) |
| { |
| trans->op_mode = trans_cfg->op_mode; |
| |
| trans->ops->configure(trans, trans_cfg); |
| WARN_ON(iwl_cmd_groups_verify_sorted(trans_cfg)); |
| } |
| |
| static inline int iwl_trans_start_hw(struct iwl_trans *trans) |
| { |
| might_sleep(); |
| |
| return trans->ops->start_hw(trans); |
| } |
| |
| static inline void iwl_trans_op_mode_leave(struct iwl_trans *trans) |
| { |
| might_sleep(); |
| |
| if (trans->ops->op_mode_leave) |
| trans->ops->op_mode_leave(trans); |
| |
| trans->op_mode = NULL; |
| |
| trans->state = IWL_TRANS_NO_FW; |
| } |
| |
| static inline void iwl_trans_fw_alive(struct iwl_trans *trans, u32 scd_addr) |
| { |
| might_sleep(); |
| |
| trans->state = IWL_TRANS_FW_ALIVE; |
| |
| trans->ops->fw_alive(trans, scd_addr); |
| } |
| |
| static inline int iwl_trans_start_fw(struct iwl_trans *trans, |
| const struct fw_img *fw, |
| bool run_in_rfkill) |
| { |
| might_sleep(); |
| |
| WARN_ON_ONCE(!trans->rx_mpdu_cmd); |
| |
| clear_bit(STATUS_FW_ERROR, &trans->status); |
| return trans->ops->start_fw(trans, fw, run_in_rfkill); |
| } |
| |
| static inline void iwl_trans_stop_device(struct iwl_trans *trans) |
| { |
| might_sleep(); |
| |
| trans->ops->stop_device(trans); |
| |
| trans->state = IWL_TRANS_NO_FW; |
| } |
| |
| static inline int iwl_trans_d3_suspend(struct iwl_trans *trans, bool test, |
| bool reset) |
| { |
| might_sleep(); |
| if (!trans->ops->d3_suspend) |
| return 0; |
| |
| return trans->ops->d3_suspend(trans, test, reset); |
| } |
| |
| static inline int iwl_trans_d3_resume(struct iwl_trans *trans, |
| enum iwl_d3_status *status, |
| bool test, bool reset) |
| { |
| might_sleep(); |
| if (!trans->ops->d3_resume) |
| return 0; |
| |
| return trans->ops->d3_resume(trans, status, test, reset); |
| } |
| |
| static inline int iwl_trans_suspend(struct iwl_trans *trans) |
| { |
| if (!trans->ops->suspend) |
| return 0; |
| |
| return trans->ops->suspend(trans); |
| } |
| |
| static inline void iwl_trans_resume(struct iwl_trans *trans) |
| { |
| if (trans->ops->resume) |
| trans->ops->resume(trans); |
| } |
| |
| static inline struct iwl_trans_dump_data * |
| iwl_trans_dump_data(struct iwl_trans *trans, u32 dump_mask) |
| { |
| if (!trans->ops->dump_data) |
| return NULL; |
| return trans->ops->dump_data(trans, dump_mask); |
| } |
| |
| static inline struct iwl_device_tx_cmd * |
| iwl_trans_alloc_tx_cmd(struct iwl_trans *trans) |
| { |
| return kmem_cache_zalloc(trans->dev_cmd_pool, GFP_ATOMIC); |
| } |
| |
| int iwl_trans_send_cmd(struct iwl_trans *trans, struct iwl_host_cmd *cmd); |
| |
| static inline void iwl_trans_free_tx_cmd(struct iwl_trans *trans, |
| struct iwl_device_tx_cmd *dev_cmd) |
| { |
| kmem_cache_free(trans->dev_cmd_pool, dev_cmd); |
| } |
| |
| static inline int iwl_trans_tx(struct iwl_trans *trans, struct sk_buff *skb, |
| struct iwl_device_tx_cmd *dev_cmd, int queue) |
| { |
| if (unlikely(test_bit(STATUS_FW_ERROR, &trans->status))) |
| return -EIO; |
| |
| if (WARN_ON_ONCE(trans->state != IWL_TRANS_FW_ALIVE)) { |
| IWL_ERR(trans, "%s bad state = %d\n", __func__, trans->state); |
| return -EIO; |
| } |
| |
| return trans->ops->tx(trans, skb, dev_cmd, queue); |
| } |
| |
| static inline void iwl_trans_reclaim(struct iwl_trans *trans, int queue, |
| int ssn, struct sk_buff_head *skbs) |
| { |
| if (WARN_ON_ONCE(trans->state != IWL_TRANS_FW_ALIVE)) { |
| IWL_ERR(trans, "%s bad state = %d\n", __func__, trans->state); |
| return; |
| } |
| |
| trans->ops->reclaim(trans, queue, ssn, skbs); |
| } |
| |
| static inline void iwl_trans_set_q_ptrs(struct iwl_trans *trans, int queue, |
| int ptr) |
| { |
| if (WARN_ON_ONCE(trans->state != IWL_TRANS_FW_ALIVE)) { |
| IWL_ERR(trans, "%s bad state = %d\n", __func__, trans->state); |
| return; |
| } |
| |
| trans->ops->set_q_ptrs(trans, queue, ptr); |
| } |
| |
| static inline void iwl_trans_txq_disable(struct iwl_trans *trans, int queue, |
| bool configure_scd) |
| { |
| trans->ops->txq_disable(trans, queue, configure_scd); |
| } |
| |
| static inline bool |
| iwl_trans_txq_enable_cfg(struct iwl_trans *trans, int queue, u16 ssn, |
| const struct iwl_trans_txq_scd_cfg *cfg, |
| unsigned int queue_wdg_timeout) |
| { |
| might_sleep(); |
| |
| if (WARN_ON_ONCE(trans->state != IWL_TRANS_FW_ALIVE)) { |
| IWL_ERR(trans, "%s bad state = %d\n", __func__, trans->state); |
| return false; |
| } |
| |
| return trans->ops->txq_enable(trans, queue, ssn, |
| cfg, queue_wdg_timeout); |
| } |
| |
| static inline int |
| iwl_trans_get_rxq_dma_data(struct iwl_trans *trans, int queue, |
| struct iwl_trans_rxq_dma_data *data) |
| { |
| if (WARN_ON_ONCE(!trans->ops->rxq_dma_data)) |
| return -ENOTSUPP; |
| |
| return trans->ops->rxq_dma_data(trans, queue, data); |
| } |
| |
| static inline void |
| iwl_trans_txq_free(struct iwl_trans *trans, int queue) |
| { |
| if (WARN_ON_ONCE(!trans->ops->txq_free)) |
| return; |
| |
| trans->ops->txq_free(trans, queue); |
| } |
| |
| static inline int |
| iwl_trans_txq_alloc(struct iwl_trans *trans, |
| __le16 flags, u8 sta_id, u8 tid, |
| int cmd_id, int size, |
| unsigned int wdg_timeout) |
| { |
| might_sleep(); |
| |
| if (WARN_ON_ONCE(!trans->ops->txq_alloc)) |
| return -ENOTSUPP; |
| |
| if (WARN_ON_ONCE(trans->state != IWL_TRANS_FW_ALIVE)) { |
| IWL_ERR(trans, "%s bad state = %d\n", __func__, trans->state); |
| return -EIO; |
| } |
| |
| return trans->ops->txq_alloc(trans, flags, sta_id, tid, |
| cmd_id, size, wdg_timeout); |
| } |
| |
| static inline void iwl_trans_txq_set_shared_mode(struct iwl_trans *trans, |
| int queue, bool shared_mode) |
| { |
| if (trans->ops->txq_set_shared_mode) |
| trans->ops->txq_set_shared_mode(trans, queue, shared_mode); |
| } |
| |
| static inline void iwl_trans_txq_enable(struct iwl_trans *trans, int queue, |
| int fifo, int sta_id, int tid, |
| int frame_limit, u16 ssn, |
| unsigned int queue_wdg_timeout) |
| { |
| struct iwl_trans_txq_scd_cfg cfg = { |
| .fifo = fifo, |
| .sta_id = sta_id, |
| .tid = tid, |
| .frame_limit = frame_limit, |
| .aggregate = sta_id >= 0, |
| }; |
| |
| iwl_trans_txq_enable_cfg(trans, queue, ssn, &cfg, queue_wdg_timeout); |
| } |
| |
| static inline |
| void iwl_trans_ac_txq_enable(struct iwl_trans *trans, int queue, int fifo, |
| unsigned int queue_wdg_timeout) |
| { |
| struct iwl_trans_txq_scd_cfg cfg = { |
| .fifo = fifo, |
| .sta_id = -1, |
| .tid = IWL_MAX_TID_COUNT, |
| .frame_limit = IWL_FRAME_LIMIT, |
| .aggregate = false, |
| }; |
| |
| iwl_trans_txq_enable_cfg(trans, queue, 0, &cfg, queue_wdg_timeout); |
| } |
| |
| static inline void iwl_trans_freeze_txq_timer(struct iwl_trans *trans, |
| unsigned long txqs, |
| bool freeze) |
| { |
| if (WARN_ON_ONCE(trans->state != IWL_TRANS_FW_ALIVE)) { |
| IWL_ERR(trans, "%s bad state = %d\n", __func__, trans->state); |
| return; |
| } |
| |
| if (trans->ops->freeze_txq_timer) |
| trans->ops->freeze_txq_timer(trans, txqs, freeze); |
| } |
| |
| static inline void iwl_trans_block_txq_ptrs(struct iwl_trans *trans, |
| bool block) |
| { |
| if (WARN_ON_ONCE(trans->state != IWL_TRANS_FW_ALIVE)) { |
| IWL_ERR(trans, "%s bad state = %d\n", __func__, trans->state); |
| return; |
| } |
| |
| if (trans->ops->block_txq_ptrs) |
| trans->ops->block_txq_ptrs(trans, block); |
| } |
| |
| static inline int iwl_trans_wait_tx_queues_empty(struct iwl_trans *trans, |
| u32 txqs) |
| { |
| if (WARN_ON_ONCE(!trans->ops->wait_tx_queues_empty)) |
| return -ENOTSUPP; |
| |
| if (WARN_ON_ONCE(trans->state != IWL_TRANS_FW_ALIVE)) { |
| IWL_ERR(trans, "%s bad state = %d\n", __func__, trans->state); |
| return -EIO; |
| } |
| |
| return trans->ops->wait_tx_queues_empty(trans, txqs); |
| } |
| |
| static inline int iwl_trans_wait_txq_empty(struct iwl_trans *trans, int queue) |
| { |
| if (WARN_ON_ONCE(!trans->ops->wait_txq_empty)) |
| return -ENOTSUPP; |
| |
| if (WARN_ON_ONCE(trans->state != IWL_TRANS_FW_ALIVE)) { |
| IWL_ERR(trans, "%s bad state = %d\n", __func__, trans->state); |
| return -EIO; |
| } |
| |
| return trans->ops->wait_txq_empty(trans, queue); |
| } |
| |
| static inline void iwl_trans_write8(struct iwl_trans *trans, u32 ofs, u8 val) |
| { |
| trans->ops->write8(trans, ofs, val); |
| } |
| |
| static inline void iwl_trans_write32(struct iwl_trans *trans, u32 ofs, u32 val) |
| { |
| trans->ops->write32(trans, ofs, val); |
| } |
| |
| static inline u32 iwl_trans_read32(struct iwl_trans *trans, u32 ofs) |
| { |
| return trans->ops->read32(trans, ofs); |
| } |
| |
| static inline u32 iwl_trans_read_prph(struct iwl_trans *trans, u32 ofs) |
| { |
| return trans->ops->read_prph(trans, ofs); |
| } |
| |
| static inline void iwl_trans_write_prph(struct iwl_trans *trans, u32 ofs, |
| u32 val) |
| { |
| return trans->ops->write_prph(trans, ofs, val); |
| } |
| |
| static inline int iwl_trans_read_mem(struct iwl_trans *trans, u32 addr, |
| void *buf, int dwords) |
| { |
| return trans->ops->read_mem(trans, addr, buf, dwords); |
| } |
| |
| #define iwl_trans_read_mem_bytes(trans, addr, buf, bufsize) \ |
| do { \ |
| if (__builtin_constant_p(bufsize)) \ |
| BUILD_BUG_ON((bufsize) % sizeof(u32)); \ |
| iwl_trans_read_mem(trans, addr, buf, (bufsize) / sizeof(u32));\ |
| } while (0) |
| |
| static inline u32 iwl_trans_read_mem32(struct iwl_trans *trans, u32 addr) |
| { |
| u32 value; |
| |
| if (WARN_ON(iwl_trans_read_mem(trans, addr, &value, 1))) |
| return 0xa5a5a5a5; |
| |
| return value; |
| } |
| |
| static inline int iwl_trans_write_mem(struct iwl_trans *trans, u32 addr, |
| const void *buf, int dwords) |
| { |
| return trans->ops->write_mem(trans, addr, buf, dwords); |
| } |
| |
| static inline u32 iwl_trans_write_mem32(struct iwl_trans *trans, u32 addr, |
| u32 val) |
| { |
| return iwl_trans_write_mem(trans, addr, &val, 1); |
| } |
| |
| static inline void iwl_trans_set_pmi(struct iwl_trans *trans, bool state) |
| { |
| if (trans->ops->set_pmi) |
| trans->ops->set_pmi(trans, state); |
| } |
| |
| static inline void iwl_trans_sw_reset(struct iwl_trans *trans) |
| { |
| if (trans->ops->sw_reset) |
| trans->ops->sw_reset(trans); |
| } |
| |
| static inline void |
| iwl_trans_set_bits_mask(struct iwl_trans *trans, u32 reg, u32 mask, u32 value) |
| { |
| trans->ops->set_bits_mask(trans, reg, mask, value); |
| } |
| |
| #define iwl_trans_grab_nic_access(trans, flags) \ |
| __cond_lock(nic_access, \ |
| likely((trans)->ops->grab_nic_access(trans, flags))) |
| |
| static inline void __releases(nic_access) |
| iwl_trans_release_nic_access(struct iwl_trans *trans, unsigned long *flags) |
| { |
| trans->ops->release_nic_access(trans, flags); |
| __release(nic_access); |
| } |
| |
| static inline void iwl_trans_fw_error(struct iwl_trans *trans) |
| { |
| if (WARN_ON_ONCE(!trans->op_mode)) |
| return; |
| |
| /* prevent double restarts due to the same erroneous FW */ |
| if (!test_and_set_bit(STATUS_FW_ERROR, &trans->status)) |
| iwl_op_mode_nic_error(trans->op_mode); |
| } |
| |
| static inline bool iwl_trans_fw_running(struct iwl_trans *trans) |
| { |
| return trans->state == IWL_TRANS_FW_ALIVE; |
| } |
| |
| static inline void iwl_trans_sync_nmi(struct iwl_trans *trans) |
| { |
| if (trans->ops->sync_nmi) |
| trans->ops->sync_nmi(trans); |
| } |
| |
| static inline bool iwl_trans_dbg_ini_valid(struct iwl_trans *trans) |
| { |
| return trans->dbg.internal_ini_cfg != IWL_INI_CFG_STATE_NOT_LOADED || |
| trans->dbg.external_ini_cfg != IWL_INI_CFG_STATE_NOT_LOADED; |
| } |
| |
| /***************************************************** |
| * transport helper functions |
| *****************************************************/ |
| struct iwl_trans *iwl_trans_alloc(unsigned int priv_size, |
| struct device *dev, |
| const struct iwl_trans_ops *ops, |
| unsigned int cmd_pool_size, |
| unsigned int cmd_pool_align); |
| void iwl_trans_free(struct iwl_trans *trans); |
| |
| /***************************************************** |
| * driver (transport) register/unregister functions |
| ******************************************************/ |
| int __must_check iwl_pci_register_driver(void); |
| void iwl_pci_unregister_driver(void); |
| |
| #endif /* __iwl_trans_h__ */ |