| /* Copyright (c) 2012-2017, The Linux Foundation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 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. |
| */ |
| |
| #include <linux/ipa_mhi.h> |
| #include <linux/ipa_qmi_service_v01.h> |
| |
| #ifndef _IPA_COMMON_I_H_ |
| #define _IPA_COMMON_I_H_ |
| #include <linux/ipc_logging.h> |
| #include <linux/ipa.h> |
| #include <linux/ipa_uc_offload.h> |
| |
| #define __FILENAME__ \ |
| (strrchr(__FILE__, '/') ? strrchr(__FILE__, '/') + 1 : __FILE__) |
| |
| #define IPA_ACTIVE_CLIENTS_PREP_EP(log_info, client) \ |
| log_info.file = __FILENAME__; \ |
| log_info.line = __LINE__; \ |
| log_info.type = EP; \ |
| log_info.id_string = (client < 0 || client >= IPA_CLIENT_MAX) \ |
| ? "Invalid Client" : ipa_clients_strings[client] |
| |
| #define IPA_ACTIVE_CLIENTS_PREP_SIMPLE(log_info) \ |
| log_info.file = __FILENAME__; \ |
| log_info.line = __LINE__; \ |
| log_info.type = SIMPLE; \ |
| log_info.id_string = __func__ |
| |
| #define IPA_ACTIVE_CLIENTS_PREP_RESOURCE(log_info, resource_name) \ |
| log_info.file = __FILENAME__; \ |
| log_info.line = __LINE__; \ |
| log_info.type = RESOURCE; \ |
| log_info.id_string = resource_name |
| |
| #define IPA_ACTIVE_CLIENTS_PREP_SPECIAL(log_info, id_str) \ |
| log_info.file = __FILENAME__; \ |
| log_info.line = __LINE__; \ |
| log_info.type = SPECIAL; \ |
| log_info.id_string = id_str |
| |
| #define IPA_ACTIVE_CLIENTS_INC_EP(client) \ |
| do { \ |
| struct ipa_active_client_logging_info log_info; \ |
| IPA_ACTIVE_CLIENTS_PREP_EP(log_info, client); \ |
| ipa_inc_client_enable_clks(&log_info); \ |
| } while (0) |
| |
| #define IPA_ACTIVE_CLIENTS_DEC_EP(client) \ |
| do { \ |
| struct ipa_active_client_logging_info log_info; \ |
| IPA_ACTIVE_CLIENTS_PREP_EP(log_info, client); \ |
| ipa_dec_client_disable_clks(&log_info); \ |
| } while (0) |
| |
| #define IPA_ACTIVE_CLIENTS_INC_SIMPLE() \ |
| do { \ |
| struct ipa_active_client_logging_info log_info; \ |
| IPA_ACTIVE_CLIENTS_PREP_SIMPLE(log_info); \ |
| ipa_inc_client_enable_clks(&log_info); \ |
| } while (0) |
| |
| #define IPA_ACTIVE_CLIENTS_DEC_SIMPLE() \ |
| do { \ |
| struct ipa_active_client_logging_info log_info; \ |
| IPA_ACTIVE_CLIENTS_PREP_SIMPLE(log_info); \ |
| ipa_dec_client_disable_clks(&log_info); \ |
| } while (0) |
| |
| #define IPA_ACTIVE_CLIENTS_INC_RESOURCE(resource_name) \ |
| do { \ |
| struct ipa_active_client_logging_info log_info; \ |
| IPA_ACTIVE_CLIENTS_PREP_RESOURCE(log_info, resource_name); \ |
| ipa_inc_client_enable_clks(&log_info); \ |
| } while (0) |
| |
| #define IPA_ACTIVE_CLIENTS_DEC_RESOURCE(resource_name) \ |
| do { \ |
| struct ipa_active_client_logging_info log_info; \ |
| IPA_ACTIVE_CLIENTS_PREP_RESOURCE(log_info, resource_name); \ |
| ipa_dec_client_disable_clks(&log_info); \ |
| } while (0) |
| |
| #define IPA_ACTIVE_CLIENTS_INC_SPECIAL(id_str) \ |
| do { \ |
| struct ipa_active_client_logging_info log_info; \ |
| IPA_ACTIVE_CLIENTS_PREP_SPECIAL(log_info, id_str); \ |
| ipa_inc_client_enable_clks(&log_info); \ |
| } while (0) |
| |
| #define IPA_ACTIVE_CLIENTS_DEC_SPECIAL(id_str) \ |
| do { \ |
| struct ipa_active_client_logging_info log_info; \ |
| IPA_ACTIVE_CLIENTS_PREP_SPECIAL(log_info, id_str); \ |
| ipa_dec_client_disable_clks(&log_info); \ |
| } while (0) |
| |
| #define ipa_assert_on(condition)\ |
| do {\ |
| if (unlikely(condition))\ |
| ipa_assert();\ |
| } while (0) |
| |
| #define IPA_CLIENT_IS_PROD(x) \ |
| (x < IPA_CLIENT_MAX && (x & 0x1) == 0) |
| #define IPA_CLIENT_IS_CONS(x) \ |
| (x < IPA_CLIENT_MAX && (x & 0x1) == 1) |
| |
| #define IPA_GSI_CHANNEL_STOP_SLEEP_MIN_USEC (1000) |
| #define IPA_GSI_CHANNEL_STOP_SLEEP_MAX_USEC (2000) |
| |
| enum ipa_active_client_log_type { |
| EP, |
| SIMPLE, |
| RESOURCE, |
| SPECIAL, |
| INVALID |
| }; |
| |
| struct ipa_active_client_logging_info { |
| const char *id_string; |
| char *file; |
| int line; |
| enum ipa_active_client_log_type type; |
| }; |
| |
| /** |
| * struct ipa_mem_buffer - IPA memory buffer |
| * @base: base |
| * @phys_base: physical base address |
| * @size: size of memory buffer |
| */ |
| struct ipa_mem_buffer { |
| void *base; |
| dma_addr_t phys_base; |
| u32 size; |
| }; |
| |
| #define IPA_MHI_GSI_ER_START 10 |
| #define IPA_MHI_GSI_ER_END 16 |
| |
| /** |
| * enum ipa3_mhi_burst_mode - MHI channel burst mode state |
| * |
| * Values are according to MHI specification |
| * @IPA_MHI_BURST_MODE_DEFAULT: burst mode enabled for HW channels, |
| * disabled for SW channels |
| * @IPA_MHI_BURST_MODE_RESERVED: |
| * @IPA_MHI_BURST_MODE_DISABLE: Burst mode is disabled for this channel |
| * @IPA_MHI_BURST_MODE_ENABLE: Burst mode is enabled for this channel |
| * |
| */ |
| enum ipa3_mhi_burst_mode { |
| IPA_MHI_BURST_MODE_DEFAULT, |
| IPA_MHI_BURST_MODE_RESERVED, |
| IPA_MHI_BURST_MODE_DISABLE, |
| IPA_MHI_BURST_MODE_ENABLE, |
| }; |
| |
| /** |
| * enum ipa_hw_mhi_channel_states - MHI channel state machine |
| * |
| * Values are according to MHI specification |
| * @IPA_HW_MHI_CHANNEL_STATE_DISABLE: Channel is disabled and not processed by |
| * the host or device. |
| * @IPA_HW_MHI_CHANNEL_STATE_ENABLE: A channel is enabled after being |
| * initialized and configured by host, including its channel context and |
| * associated transfer ring. While this state, the channel is not active |
| * and the device does not process transfer. |
| * @IPA_HW_MHI_CHANNEL_STATE_RUN: The device processes transfers and doorbell |
| * for channels. |
| * @IPA_HW_MHI_CHANNEL_STATE_SUSPEND: Used to halt operations on the channel. |
| * The device does not process transfers for the channel in this state. |
| * This state is typically used to synchronize the transition to low power |
| * modes. |
| * @IPA_HW_MHI_CHANNEL_STATE_STOP: Used to halt operations on the channel. |
| * The device does not process transfers for the channel in this state. |
| * @IPA_HW_MHI_CHANNEL_STATE_ERROR: The device detected an error in an element |
| * from the transfer ring associated with the channel. |
| * @IPA_HW_MHI_CHANNEL_STATE_INVALID: Invalid state. Shall not be in use in |
| * operational scenario. |
| */ |
| enum ipa_hw_mhi_channel_states { |
| IPA_HW_MHI_CHANNEL_STATE_DISABLE = 0, |
| IPA_HW_MHI_CHANNEL_STATE_ENABLE = 1, |
| IPA_HW_MHI_CHANNEL_STATE_RUN = 2, |
| IPA_HW_MHI_CHANNEL_STATE_SUSPEND = 3, |
| IPA_HW_MHI_CHANNEL_STATE_STOP = 4, |
| IPA_HW_MHI_CHANNEL_STATE_ERROR = 5, |
| IPA_HW_MHI_CHANNEL_STATE_INVALID = 0xFF |
| }; |
| |
| /** |
| * Structure holding the parameters for IPA_CPU_2_HW_CMD_MHI_DL_UL_SYNC_INFO |
| * command. Parameters are sent as 32b immediate parameters. |
| * @isDlUlSyncEnabled: Flag to indicate if DL UL Syncronization is enabled |
| * @UlAccmVal: UL Timer Accumulation value (Period after which device will poll |
| * for UL data) |
| * @ulMsiEventThreshold: Threshold at which HW fires MSI to host for UL events |
| * @dlMsiEventThreshold: Threshold at which HW fires MSI to host for DL events |
| */ |
| union IpaHwMhiDlUlSyncCmdData_t { |
| struct IpaHwMhiDlUlSyncCmdParams_t { |
| u32 isDlUlSyncEnabled:8; |
| u32 UlAccmVal:8; |
| u32 ulMsiEventThreshold:8; |
| u32 dlMsiEventThreshold:8; |
| } params; |
| u32 raw32b; |
| }; |
| |
| struct ipa_mhi_ch_ctx { |
| u8 chstate;/*0-7*/ |
| u8 brstmode:2;/*8-9*/ |
| u8 pollcfg:6;/*10-15*/ |
| u16 rsvd;/*16-31*/ |
| u32 chtype; |
| u32 erindex; |
| u64 rbase; |
| u64 rlen; |
| u64 rp; |
| u64 wp; |
| } __packed; |
| |
| struct ipa_mhi_ev_ctx { |
| u32 intmodc:16; |
| u32 intmodt:16; |
| u32 ertype; |
| u32 msivec; |
| u64 rbase; |
| u64 rlen; |
| u64 rp; |
| u64 wp; |
| } __packed; |
| |
| struct ipa_mhi_init_uc_engine { |
| struct ipa_mhi_msi_info *msi; |
| u32 mmio_addr; |
| u32 host_ctrl_addr; |
| u32 host_data_addr; |
| u32 first_ch_idx; |
| u32 first_er_idx; |
| union IpaHwMhiDlUlSyncCmdData_t *ipa_cached_dl_ul_sync_info; |
| }; |
| |
| struct ipa_mhi_init_gsi_engine { |
| u32 first_ch_idx; |
| }; |
| |
| struct ipa_mhi_init_engine { |
| struct ipa_mhi_init_uc_engine uC; |
| struct ipa_mhi_init_gsi_engine gsi; |
| }; |
| |
| struct start_gsi_channel { |
| enum ipa_hw_mhi_channel_states state; |
| struct ipa_mhi_msi_info *msi; |
| struct ipa_mhi_ev_ctx *ev_ctx_host; |
| u64 event_context_addr; |
| struct ipa_mhi_ch_ctx *ch_ctx_host; |
| u64 channel_context_addr; |
| void (*ch_err_cb)(struct gsi_chan_err_notify *notify); |
| void (*ev_err_cb)(struct gsi_evt_err_notify *notify); |
| void *channel; |
| bool assert_bit40; |
| struct gsi_mhi_channel_scratch *mhi; |
| unsigned long *cached_gsi_evt_ring_hdl; |
| uint8_t evchid; |
| }; |
| |
| struct start_uc_channel { |
| enum ipa_hw_mhi_channel_states state; |
| u8 index; |
| u8 id; |
| }; |
| |
| struct start_mhi_channel { |
| struct start_uc_channel uC; |
| struct start_gsi_channel gsi; |
| }; |
| |
| struct ipa_mhi_connect_params_internal { |
| struct ipa_sys_connect_params *sys; |
| u8 channel_id; |
| struct start_mhi_channel start; |
| }; |
| |
| /** |
| * struct ipa_hdr_offset_entry - IPA header offset entry |
| * @link: entry's link in global header offset entries list |
| * @offset: the offset |
| * @bin: bin |
| */ |
| struct ipa_hdr_offset_entry { |
| struct list_head link; |
| u32 offset; |
| u32 bin; |
| }; |
| |
| extern const char *ipa_clients_strings[]; |
| |
| #define IPA_IPC_LOGGING(buf, fmt, args...) \ |
| do { \ |
| if (buf) \ |
| ipc_log_string((buf), fmt, __func__, __LINE__, \ |
| ## args); \ |
| } while (0) |
| |
| void ipa_inc_client_enable_clks(struct ipa_active_client_logging_info *id); |
| void ipa_dec_client_disable_clks(struct ipa_active_client_logging_info *id); |
| int ipa_inc_client_enable_clks_no_block( |
| struct ipa_active_client_logging_info *id); |
| int ipa_suspend_resource_no_block(enum ipa_rm_resource_name resource); |
| int ipa_resume_resource(enum ipa_rm_resource_name name); |
| int ipa_suspend_resource_sync(enum ipa_rm_resource_name resource); |
| int ipa_set_required_perf_profile(enum ipa_voltage_level floor_voltage, |
| u32 bandwidth_mbps); |
| void *ipa_get_ipc_logbuf(void); |
| void *ipa_get_ipc_logbuf_low(void); |
| void ipa_assert(void); |
| |
| /* MHI */ |
| int ipa_mhi_init_engine(struct ipa_mhi_init_engine *params); |
| int ipa_connect_mhi_pipe(struct ipa_mhi_connect_params_internal *in, |
| u32 *clnt_hdl); |
| int ipa_disconnect_mhi_pipe(u32 clnt_hdl); |
| bool ipa_mhi_stop_gsi_channel(enum ipa_client_type client); |
| int ipa_qmi_enable_force_clear_datapath_send( |
| struct ipa_enable_force_clear_datapath_req_msg_v01 *req); |
| int ipa_qmi_disable_force_clear_datapath_send( |
| struct ipa_disable_force_clear_datapath_req_msg_v01 *req); |
| int ipa_generate_tag_process(void); |
| int ipa_disable_sps_pipe(enum ipa_client_type client); |
| int ipa_mhi_reset_channel_internal(enum ipa_client_type client); |
| int ipa_mhi_start_channel_internal(enum ipa_client_type client); |
| bool ipa_mhi_sps_channel_empty(enum ipa_client_type client); |
| int ipa_mhi_resume_channels_internal(enum ipa_client_type client, |
| bool LPTransitionRejected, bool brstmode_enabled, |
| union __packed gsi_channel_scratch ch_scratch, u8 index); |
| int ipa_mhi_handle_ipa_config_req(struct ipa_config_req_msg_v01 *config_req); |
| int ipa_mhi_query_ch_info(enum ipa_client_type client, |
| struct gsi_chan_info *ch_info); |
| int ipa_mhi_destroy_channel(enum ipa_client_type client); |
| int ipa_mhi_is_using_dma(bool *flag); |
| const char *ipa_mhi_get_state_str(int state); |
| |
| /* MHI uC */ |
| int ipa_uc_mhi_send_dl_ul_sync_info(union IpaHwMhiDlUlSyncCmdData_t *cmd); |
| int ipa_uc_mhi_init |
| (void (*ready_cb)(void), void (*wakeup_request_cb)(void)); |
| void ipa_uc_mhi_cleanup(void); |
| int ipa_uc_mhi_reset_channel(int channelHandle); |
| int ipa_uc_mhi_suspend_channel(int channelHandle); |
| int ipa_uc_mhi_stop_event_update_channel(int channelHandle); |
| int ipa_uc_mhi_print_stats(char *dbg_buff, int size); |
| |
| /* uC */ |
| int ipa_uc_state_check(void); |
| |
| /* general */ |
| void ipa_get_holb(int ep_idx, struct ipa_ep_cfg_holb *holb); |
| void ipa_set_tag_process_before_gating(bool val); |
| bool ipa_has_open_aggr_frame(enum ipa_client_type client); |
| int ipa_setup_uc_ntn_pipes(struct ipa_ntn_conn_in_params *in, |
| ipa_notify_cb notify, void *priv, u8 hdr_len, |
| struct ipa_ntn_conn_out_params *outp); |
| |
| int ipa_tear_down_uc_offload_pipes(int ipa_ep_idx_ul, int ipa_ep_idx_dl); |
| u8 *ipa_write_64(u64 w, u8 *dest); |
| u8 *ipa_write_32(u32 w, u8 *dest); |
| u8 *ipa_write_16(u16 hw, u8 *dest); |
| u8 *ipa_write_8(u8 b, u8 *dest); |
| u8 *ipa_pad_to_64(u8 *dest); |
| u8 *ipa_pad_to_32(u8 *dest); |
| int ipa_ntn_uc_reg_rdyCB(void (*ipauc_ready_cb)(void *user_data), |
| void *user_data); |
| void ipa_ntn_uc_dereg_rdyCB(void); |
| const char *ipa_get_version_string(enum ipa_hw_type ver); |
| |
| #endif /* _IPA_COMMON_I_H_ */ |