| /* Copyright (c) 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/debugfs.h> |
| #include <linux/videodev2.h> |
| #include <linux/slab.h> |
| #include <linux/uaccess.h> |
| #include <linux/ratelimit.h> |
| |
| #include "cam_isp_context.h" |
| #include "cam_isp_log.h" |
| #include "cam_mem_mgr.h" |
| #include "cam_sync_api.h" |
| #include "cam_req_mgr_dev.h" |
| #include "cam_trace.h" |
| #include "cam_debug_util.h" |
| |
| static uint64_t __cam_isp_ctx_get_event_ts(uint32_t evt_id, void *evt_data) |
| { |
| uint64_t ts = 0; |
| |
| if (!evt_data) |
| return 0; |
| |
| switch (evt_id) { |
| case CAM_ISP_HW_EVENT_ERROR: |
| ts = ((struct cam_isp_hw_error_event_data *)evt_data)-> |
| timestamp; |
| break; |
| case CAM_ISP_HW_EVENT_SOF: |
| ts = ((struct cam_isp_hw_sof_event_data *)evt_data)-> |
| timestamp; |
| break; |
| case CAM_ISP_HW_EVENT_REG_UPDATE: |
| ts = ((struct cam_isp_hw_reg_update_event_data *)evt_data)-> |
| timestamp; |
| break; |
| case CAM_ISP_HW_EVENT_EPOCH: |
| ts = ((struct cam_isp_hw_epoch_event_data *)evt_data)-> |
| timestamp; |
| break; |
| case CAM_ISP_HW_EVENT_EOF: |
| ts = ((struct cam_isp_hw_eof_event_data *)evt_data)-> |
| timestamp; |
| break; |
| case CAM_ISP_HW_EVENT_DONE: |
| break; |
| default: |
| CAM_DBG(CAM_ISP, "Invalid Event Type %d", evt_id); |
| } |
| |
| return ts; |
| } |
| |
| static int __cam_isp_ctx_handle_buf_done_in_activated_state( |
| struct cam_isp_context *ctx_isp, |
| struct cam_isp_hw_done_event_data *done, |
| uint32_t bubble_state) |
| { |
| int rc = 0; |
| int i, j; |
| struct cam_ctx_request *req; |
| struct cam_isp_ctx_req *req_isp; |
| struct cam_context *ctx = ctx_isp->base; |
| |
| if (list_empty(&ctx->active_req_list)) { |
| CAM_DBG(CAM_ISP, "Buf done with no active request!"); |
| goto end; |
| } |
| |
| CAM_DBG(CAM_ISP, "Enter with bubble_state %d", bubble_state); |
| |
| req = list_first_entry(&ctx->active_req_list, |
| struct cam_ctx_request, list); |
| |
| trace_cam_buf_done("ISP", ctx, req); |
| |
| req_isp = (struct cam_isp_ctx_req *) req->req_priv; |
| for (i = 0; i < done->num_handles; i++) { |
| for (j = 0; j < req_isp->num_fence_map_out; j++) { |
| if (done->resource_handle[i] == |
| req_isp->fence_map_out[j].resource_handle) |
| break; |
| } |
| |
| if (j == req_isp->num_fence_map_out) { |
| CAM_ERR(CAM_ISP, |
| "Can not find matching lane handle 0x%x!", |
| done->resource_handle[i]); |
| rc = -EINVAL; |
| continue; |
| } |
| |
| if (!bubble_state) { |
| CAM_DBG(CAM_ISP, "Sync with success: fd 0x%x", |
| req_isp->fence_map_out[j].sync_id); |
| rc = cam_sync_signal(req_isp->fence_map_out[j].sync_id, |
| CAM_SYNC_STATE_SIGNALED_SUCCESS); |
| if (rc) |
| CAM_ERR(CAM_ISP, "Sync failed with rc = %d", |
| rc); |
| |
| } else if (!req_isp->bubble_report) { |
| CAM_DBG(CAM_ISP, "Sync with failure: fd 0x%x", |
| req_isp->fence_map_out[j].sync_id); |
| rc = cam_sync_signal(req_isp->fence_map_out[j].sync_id, |
| CAM_SYNC_STATE_SIGNALED_ERROR); |
| if (rc) |
| CAM_ERR(CAM_ISP, "Sync failed with rc = %d", |
| rc); |
| } else { |
| /* |
| * Ignore the buffer done if bubble detect is on |
| * In most case, active list should be empty when |
| * bubble detects. But for safety, we just move the |
| * current active request to the pending list here. |
| */ |
| list_del_init(&req->list); |
| list_add(&req->list, &ctx->pending_req_list); |
| continue; |
| } |
| |
| CAM_DBG(CAM_ISP, "req %lld, reset sync id 0x%x", |
| req->request_id, |
| req_isp->fence_map_out[j].sync_id); |
| req_isp->num_acked++; |
| req_isp->fence_map_out[j].sync_id = -1; |
| } |
| |
| if (req_isp->num_acked == req_isp->num_fence_map_out) { |
| list_del_init(&req->list); |
| list_add_tail(&req->list, &ctx->free_req_list); |
| ctx_isp->active_req_cnt--; |
| CAM_DBG(CAM_ISP, |
| "Move active request %lld to free list(cnt = %d)", |
| req->request_id, ctx_isp->active_req_cnt); |
| } |
| |
| end: |
| return rc; |
| } |
| |
| static void __cam_isp_ctx_send_sof_timestamp( |
| struct cam_isp_context *ctx_isp, uint64_t request_id, |
| uint32_t sof_event_status) |
| { |
| struct cam_req_mgr_message req_msg; |
| |
| req_msg.session_hdl = ctx_isp->base->session_hdl; |
| req_msg.u.frame_msg.frame_id = ctx_isp->frame_id; |
| req_msg.u.frame_msg.request_id = request_id; |
| req_msg.u.frame_msg.timestamp = ctx_isp->sof_timestamp_val; |
| req_msg.u.frame_msg.link_hdl = ctx_isp->base->link_hdl; |
| req_msg.u.frame_msg.sof_status = sof_event_status; |
| |
| CAM_DBG(CAM_ISP, |
| "request id:%lld frame number:%lld SOF time stamp:0x%llx", |
| request_id, ctx_isp->frame_id, |
| ctx_isp->sof_timestamp_val); |
| CAM_DBG(CAM_ISP, " sof status:%d", sof_event_status); |
| |
| if (cam_req_mgr_notify_frame_message(&req_msg, |
| V4L_EVENT_CAM_REQ_MGR_SOF, V4L_EVENT_CAM_REQ_MGR_EVENT)) |
| CAM_ERR(CAM_ISP, |
| "Error in notifying the sof time for req id:%lld", |
| request_id); |
| } |
| |
| static int __cam_isp_ctx_reg_upd_in_activated_state( |
| struct cam_isp_context *ctx_isp, void *evt_data) |
| { |
| int rc = 0; |
| struct cam_ctx_request *req; |
| struct cam_context *ctx = ctx_isp->base; |
| struct cam_isp_ctx_req *req_isp; |
| |
| if (list_empty(&ctx->pending_req_list)) { |
| CAM_ERR(CAM_ISP, "Reg upd ack with no pending request"); |
| goto end; |
| } |
| req = list_first_entry(&ctx->pending_req_list, |
| struct cam_ctx_request, list); |
| list_del_init(&req->list); |
| |
| req_isp = (struct cam_isp_ctx_req *) req->req_priv; |
| if (req_isp->num_fence_map_out != 0) { |
| list_add_tail(&req->list, &ctx->active_req_list); |
| ctx_isp->active_req_cnt++; |
| CAM_DBG(CAM_ISP, "move request %lld to active list(cnt = %d)", |
| req->request_id, ctx_isp->active_req_cnt); |
| } else { |
| /* no io config, so the request is completed. */ |
| list_add_tail(&req->list, &ctx->free_req_list); |
| CAM_DBG(CAM_ISP, |
| "move active request %lld to free list(cnt = %d)", |
| req->request_id, ctx_isp->active_req_cnt); |
| } |
| |
| /* |
| * This function only called directly from applied and bubble applied |
| * state so change substate here. |
| */ |
| ctx_isp->substate_activated = CAM_ISP_CTX_ACTIVATED_EPOCH; |
| CAM_DBG(CAM_ISP, "next substate %d", ctx_isp->substate_activated); |
| |
| end: |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_notify_sof_in_actived_state( |
| struct cam_isp_context *ctx_isp, void *evt_data) |
| { |
| int rc = 0; |
| struct cam_req_mgr_trigger_notify notify; |
| struct cam_context *ctx = ctx_isp->base; |
| struct cam_ctx_request *req; |
| uint64_t request_id = 0; |
| |
| /* |
| * notify reqmgr with sof signal. Note, due to scheduling delay |
| * we can run into situation that two active requests has already |
| * be in the active queue while we try to do the notification. |
| * In this case, we need to skip the current notification. This |
| * helps the state machine to catch up the delay. |
| */ |
| if (ctx->ctx_crm_intf && ctx->ctx_crm_intf->notify_trigger && |
| ctx_isp->active_req_cnt <= 2) { |
| if (ctx_isp->subscribe_event & CAM_TRIGGER_POINT_SOF) { |
| notify.link_hdl = ctx->link_hdl; |
| notify.dev_hdl = ctx->dev_hdl; |
| notify.frame_id = ctx_isp->frame_id; |
| notify.trigger = CAM_TRIGGER_POINT_SOF; |
| |
| ctx->ctx_crm_intf->notify_trigger(¬ify); |
| CAM_DBG(CAM_ISP, "Notify CRM SOF frame %lld", |
| ctx_isp->frame_id); |
| } |
| |
| list_for_each_entry(req, &ctx->active_req_list, list) { |
| if (req->request_id > ctx_isp->reported_req_id) { |
| request_id = req->request_id; |
| ctx_isp->reported_req_id = request_id; |
| break; |
| } |
| } |
| |
| __cam_isp_ctx_send_sof_timestamp(ctx_isp, request_id, |
| CAM_REQ_MGR_SOF_EVENT_SUCCESS); |
| } else { |
| CAM_ERR(CAM_ISP, "Can not notify SOF to CRM"); |
| rc = -EFAULT; |
| } |
| |
| return 0; |
| } |
| |
| static int __cam_isp_ctx_notify_eof_in_actived_state( |
| struct cam_isp_context *ctx_isp, void *evt_data) |
| { |
| int rc = 0; |
| struct cam_req_mgr_trigger_notify notify; |
| struct cam_context *ctx = ctx_isp->base; |
| |
| if (!(ctx_isp->subscribe_event & CAM_TRIGGER_POINT_EOF)) |
| return rc; |
| |
| /* notify reqmgr with eof signal */ |
| if (ctx->ctx_crm_intf && ctx->ctx_crm_intf->notify_trigger) { |
| notify.link_hdl = ctx->link_hdl; |
| notify.dev_hdl = ctx->dev_hdl; |
| notify.frame_id = ctx_isp->frame_id; |
| notify.trigger = CAM_TRIGGER_POINT_EOF; |
| |
| ctx->ctx_crm_intf->notify_trigger(¬ify); |
| CAM_DBG(CAM_ISP, "Notify CRM EOF frame %lld\n", |
| ctx_isp->frame_id); |
| } else { |
| CAM_ERR(CAM_ISP, "Can not notify EOF to CRM"); |
| rc = -EFAULT; |
| } |
| |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_sof_in_activated_state( |
| struct cam_isp_context *ctx_isp, void *evt_data) |
| { |
| int rc = 0; |
| struct cam_isp_hw_sof_event_data *sof_event_data = evt_data; |
| |
| if (!evt_data) { |
| CAM_ERR(CAM_ISP, "in valid sof event data"); |
| return -EINVAL; |
| } |
| |
| ctx_isp->frame_id++; |
| ctx_isp->sof_timestamp_val = sof_event_data->timestamp; |
| CAM_DBG(CAM_ISP, "frame id: %lld time stamp:0x%llx", |
| ctx_isp->frame_id, ctx_isp->sof_timestamp_val); |
| |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_reg_upd_in_sof(struct cam_isp_context *ctx_isp, |
| void *evt_data) |
| { |
| int rc = 0; |
| struct cam_ctx_request *req; |
| struct cam_isp_ctx_req *req_isp; |
| struct cam_context *ctx = ctx_isp->base; |
| |
| if (ctx->state != CAM_CTX_ACTIVATED) { |
| CAM_DBG(CAM_ISP, "invalid RUP"); |
| goto end; |
| } |
| |
| /* |
| * This is for the first update. The initial setting will |
| * cause the reg_upd in the first frame. |
| */ |
| if (!list_empty(&ctx->pending_req_list)) { |
| req = list_first_entry(&ctx->pending_req_list, |
| struct cam_ctx_request, list); |
| list_del_init(&req->list); |
| req_isp = (struct cam_isp_ctx_req *) req->req_priv; |
| if (req_isp->num_fence_map_out == req_isp->num_acked) { |
| list_add_tail(&req->list, &ctx->free_req_list); |
| } else { |
| /* need to handle the buf done */ |
| list_add_tail(&req->list, &ctx->active_req_list); |
| ctx_isp->active_req_cnt++; |
| CAM_DBG(CAM_ISP, |
| "move request %lld to active list(cnt = %d)", |
| req->request_id, |
| ctx_isp->active_req_cnt); |
| ctx_isp->substate_activated = |
| CAM_ISP_CTX_ACTIVATED_EPOCH; |
| } |
| } |
| end: |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_epoch_in_applied(struct cam_isp_context *ctx_isp, |
| void *evt_data) |
| { |
| struct cam_ctx_request *req; |
| struct cam_isp_ctx_req *req_isp; |
| struct cam_context *ctx = ctx_isp->base; |
| uint64_t request_id = 0; |
| |
| if (list_empty(&ctx->pending_req_list)) { |
| /* |
| * If no pending req in epoch, this is an error case. |
| * The recovery is to go back to sof state |
| */ |
| CAM_ERR(CAM_ISP, "No pending request"); |
| ctx_isp->substate_activated = CAM_ISP_CTX_ACTIVATED_SOF; |
| |
| /* Send SOF event as empty frame*/ |
| __cam_isp_ctx_send_sof_timestamp(ctx_isp, request_id, |
| CAM_REQ_MGR_SOF_EVENT_SUCCESS); |
| |
| goto end; |
| } |
| |
| req = list_first_entry(&ctx->pending_req_list, struct cam_ctx_request, |
| list); |
| req_isp = (struct cam_isp_ctx_req *)req->req_priv; |
| |
| CAM_DBG(CAM_ISP, "Report Bubble flag %d", req_isp->bubble_report); |
| if (req_isp->bubble_report && ctx->ctx_crm_intf && |
| ctx->ctx_crm_intf->notify_err) { |
| struct cam_req_mgr_error_notify notify; |
| |
| notify.link_hdl = ctx->link_hdl; |
| notify.dev_hdl = ctx->dev_hdl; |
| notify.req_id = req->request_id; |
| notify.error = CRM_KMD_ERR_BUBBLE; |
| ctx->ctx_crm_intf->notify_err(¬ify); |
| CAM_DBG(CAM_ISP, "Notify CRM about Bubble frame %lld", |
| ctx_isp->frame_id); |
| } else { |
| /* |
| * Since can not bubble report, always move the request to |
| * active list. |
| */ |
| list_del_init(&req->list); |
| list_add_tail(&req->list, &ctx->active_req_list); |
| ctx_isp->active_req_cnt++; |
| CAM_DBG(CAM_ISP, "move request %lld to active list(cnt = %d)", |
| req->request_id, ctx_isp->active_req_cnt); |
| req_isp->bubble_report = 0; |
| } |
| |
| request_id = req->request_id; |
| __cam_isp_ctx_send_sof_timestamp(ctx_isp, request_id, |
| CAM_REQ_MGR_SOF_EVENT_ERROR); |
| |
| ctx_isp->substate_activated = CAM_ISP_CTX_ACTIVATED_BUBBLE; |
| CAM_DBG(CAM_ISP, "next substate %d", |
| ctx_isp->substate_activated); |
| end: |
| return 0; |
| } |
| |
| |
| static int __cam_isp_ctx_buf_done_in_applied(struct cam_isp_context *ctx_isp, |
| void *evt_data) |
| { |
| int rc = 0; |
| struct cam_isp_hw_done_event_data *done = |
| (struct cam_isp_hw_done_event_data *) evt_data; |
| |
| rc = __cam_isp_ctx_handle_buf_done_in_activated_state(ctx_isp, done, 0); |
| return rc; |
| } |
| |
| |
| static int __cam_isp_ctx_sof_in_epoch(struct cam_isp_context *ctx_isp, |
| void *evt_data) |
| { |
| int rc = 0; |
| struct cam_context *ctx = ctx_isp->base; |
| struct cam_isp_hw_sof_event_data *sof_event_data = evt_data; |
| |
| if (!evt_data) { |
| CAM_ERR(CAM_ISP, "in valid sof event data"); |
| return -EINVAL; |
| } |
| |
| ctx_isp->frame_id++; |
| ctx_isp->sof_timestamp_val = sof_event_data->timestamp; |
| |
| if (list_empty(&ctx->active_req_list)) |
| ctx_isp->substate_activated = CAM_ISP_CTX_ACTIVATED_SOF; |
| else |
| CAM_DBG(CAM_ISP, "Still need to wait for the buf done"); |
| |
| CAM_DBG(CAM_ISP, "next substate %d", |
| ctx_isp->substate_activated); |
| |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_buf_done_in_epoch(struct cam_isp_context *ctx_isp, |
| void *evt_data) |
| { |
| int rc = 0; |
| struct cam_isp_hw_done_event_data *done = |
| (struct cam_isp_hw_done_event_data *) evt_data; |
| |
| rc = __cam_isp_ctx_handle_buf_done_in_activated_state(ctx_isp, done, 0); |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_buf_done_in_bubble( |
| struct cam_isp_context *ctx_isp, void *evt_data) |
| { |
| int rc = 0; |
| struct cam_isp_hw_done_event_data *done = |
| (struct cam_isp_hw_done_event_data *) evt_data; |
| |
| rc = __cam_isp_ctx_handle_buf_done_in_activated_state(ctx_isp, done, 1); |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_epoch_in_bubble_applied( |
| struct cam_isp_context *ctx_isp, void *evt_data) |
| { |
| struct cam_ctx_request *req; |
| struct cam_isp_ctx_req *req_isp; |
| struct cam_context *ctx = ctx_isp->base; |
| uint64_t request_id = 0; |
| |
| /* |
| * This means we missed the reg upd ack. So we need to |
| * transition to BUBBLE state again. |
| */ |
| |
| if (list_empty(&ctx->pending_req_list)) { |
| /* |
| * If no pending req in epoch, this is an error case. |
| * Just go back to the bubble state. |
| */ |
| CAM_ERR(CAM_ISP, "No pending request."); |
| __cam_isp_ctx_send_sof_timestamp(ctx_isp, request_id, |
| CAM_REQ_MGR_SOF_EVENT_SUCCESS); |
| |
| ctx_isp->substate_activated = CAM_ISP_CTX_ACTIVATED_BUBBLE; |
| goto end; |
| } |
| |
| req = list_first_entry(&ctx->pending_req_list, struct cam_ctx_request, |
| list); |
| req_isp = (struct cam_isp_ctx_req *)req->req_priv; |
| |
| if (req_isp->bubble_report && ctx->ctx_crm_intf && |
| ctx->ctx_crm_intf->notify_err) { |
| struct cam_req_mgr_error_notify notify; |
| |
| notify.link_hdl = ctx->link_hdl; |
| notify.dev_hdl = ctx->dev_hdl; |
| notify.req_id = req->request_id; |
| notify.error = CRM_KMD_ERR_BUBBLE; |
| ctx->ctx_crm_intf->notify_err(¬ify); |
| CAM_DBG(CAM_ISP, "Notify CRM about Bubble frame %lld", |
| ctx_isp->frame_id); |
| } else { |
| /* |
| * If we can not report bubble, then treat it as if no bubble |
| * report. Just move the req to active list. |
| */ |
| list_del_init(&req->list); |
| list_add_tail(&req->list, &ctx->active_req_list); |
| ctx_isp->active_req_cnt++; |
| CAM_DBG(CAM_ISP, "move request %lld to active list(cnt = %d)", |
| req->request_id, ctx_isp->active_req_cnt); |
| req_isp->bubble_report = 0; |
| } |
| |
| request_id = req->request_id; |
| __cam_isp_ctx_send_sof_timestamp(ctx_isp, request_id, |
| CAM_REQ_MGR_SOF_EVENT_ERROR); |
| |
| ctx_isp->substate_activated = CAM_ISP_CTX_ACTIVATED_BUBBLE; |
| CAM_DBG(CAM_ISP, "next substate %d", ctx_isp->substate_activated); |
| end: |
| return 0; |
| } |
| |
| static int __cam_isp_ctx_buf_done_in_bubble_applied( |
| struct cam_isp_context *ctx_isp, void *evt_data) |
| { |
| int rc = 0; |
| struct cam_isp_hw_done_event_data *done = |
| (struct cam_isp_hw_done_event_data *) evt_data; |
| |
| rc = __cam_isp_ctx_handle_buf_done_in_activated_state(ctx_isp, done, 1); |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_handle_error(struct cam_isp_context *ctx_isp, |
| void *evt_data) |
| { |
| int rc = 0; |
| struct cam_ctx_request *req; |
| struct cam_req_mgr_error_notify notify; |
| |
| struct cam_context *ctx = ctx_isp->base; |
| struct cam_isp_hw_error_event_data *error_event_data = |
| (struct cam_isp_hw_error_event_data *)evt_data; |
| |
| uint32_t error_type = error_event_data->error_type; |
| |
| CAM_DBG(CAM_ISP, "Enter error_type = %d", error_type); |
| if ((error_type == CAM_ISP_HW_ERROR_OVERFLOW) || |
| (error_type == CAM_ISP_HW_ERROR_BUSIF_OVERFLOW)) |
| notify.error = CRM_KMD_ERR_FATAL; |
| |
| /* |
| * Need to check the active req |
| * move all of them to the pending request list |
| * Note this funciton need revisit! |
| */ |
| |
| if (list_empty(&ctx->active_req_list)) { |
| CAM_ERR(CAM_ISP, "handling error with no active request"); |
| rc = -EINVAL; |
| goto end; |
| } |
| |
| req = list_first_entry(&ctx->active_req_list, |
| struct cam_ctx_request, list); |
| |
| if (ctx->ctx_crm_intf && ctx->ctx_crm_intf->notify_err) { |
| notify.link_hdl = ctx->link_hdl; |
| notify.dev_hdl = ctx->dev_hdl; |
| notify.req_id = req->request_id; |
| |
| ctx->ctx_crm_intf->notify_err(¬ify); |
| CAM_ERR(CAM_ISP, "Notify CRM about ERROR frame %lld", |
| ctx_isp->frame_id); |
| } else { |
| CAM_ERR(CAM_ISP, "Can not notify ERRROR to CRM"); |
| rc = -EFAULT; |
| } |
| |
| list_del_init(&req->list); |
| list_add(&req->list, &ctx->pending_req_list); |
| /* might need to check if active list is empty */ |
| |
| end: |
| CAM_DBG(CAM_ISP, "Exit"); |
| return rc; |
| } |
| |
| static struct cam_isp_ctx_irq_ops |
| cam_isp_ctx_activated_state_machine_irq[CAM_ISP_CTX_ACTIVATED_MAX] = { |
| /* SOF */ |
| { |
| .irq_ops = { |
| NULL, |
| __cam_isp_ctx_sof_in_activated_state, |
| __cam_isp_ctx_reg_upd_in_sof, |
| __cam_isp_ctx_notify_sof_in_actived_state, |
| __cam_isp_ctx_notify_eof_in_actived_state, |
| NULL, |
| }, |
| }, |
| /* APPLIED */ |
| { |
| .irq_ops = { |
| __cam_isp_ctx_handle_error, |
| __cam_isp_ctx_sof_in_activated_state, |
| __cam_isp_ctx_reg_upd_in_activated_state, |
| __cam_isp_ctx_epoch_in_applied, |
| __cam_isp_ctx_notify_eof_in_actived_state, |
| __cam_isp_ctx_buf_done_in_applied, |
| }, |
| }, |
| /* EPOCH */ |
| { |
| .irq_ops = { |
| __cam_isp_ctx_handle_error, |
| __cam_isp_ctx_sof_in_epoch, |
| NULL, |
| __cam_isp_ctx_notify_sof_in_actived_state, |
| __cam_isp_ctx_notify_eof_in_actived_state, |
| __cam_isp_ctx_buf_done_in_epoch, |
| }, |
| }, |
| /* BUBBLE */ |
| { |
| .irq_ops = { |
| NULL, |
| __cam_isp_ctx_sof_in_activated_state, |
| NULL, |
| __cam_isp_ctx_notify_sof_in_actived_state, |
| __cam_isp_ctx_notify_eof_in_actived_state, |
| __cam_isp_ctx_buf_done_in_bubble, |
| }, |
| }, |
| /* Bubble Applied */ |
| { |
| .irq_ops = { |
| NULL, |
| __cam_isp_ctx_sof_in_activated_state, |
| __cam_isp_ctx_reg_upd_in_activated_state, |
| __cam_isp_ctx_epoch_in_bubble_applied, |
| NULL, |
| __cam_isp_ctx_buf_done_in_bubble_applied, |
| }, |
| }, |
| /* HALT */ |
| { |
| }, |
| }; |
| |
| static int __cam_isp_ctx_apply_req_in_activated_state( |
| struct cam_context *ctx, struct cam_req_mgr_apply_request *apply, |
| uint32_t next_state) |
| { |
| int rc = 0; |
| struct cam_ctx_request *req; |
| struct cam_isp_ctx_req *req_isp; |
| struct cam_isp_context *ctx_isp; |
| struct cam_hw_config_args cfg; |
| |
| if (list_empty(&ctx->pending_req_list)) { |
| CAM_ERR(CAM_ISP, "No available request for Apply id %lld", |
| apply->request_id); |
| rc = -EFAULT; |
| goto end; |
| } |
| |
| /* |
| * When the pipeline has issue, the requests can be queued up in the |
| * pipeline. In this case, we should reject the additional request. |
| * The maximum number of request allowed to be outstanding is 2. |
| * |
| */ |
| ctx_isp = (struct cam_isp_context *) ctx->ctx_priv; |
| if (ctx_isp->active_req_cnt >= 2) { |
| CAM_DBG(CAM_ISP, |
| "Reject apply request due to congestion(cnt = %d)", |
| ctx_isp->active_req_cnt); |
| rc = -EFAULT; |
| goto end; |
| } |
| |
| req = list_first_entry(&ctx->pending_req_list, struct cam_ctx_request, |
| list); |
| |
| /* |
| * Check whehter the request id is matching the tip, if not, this means |
| * we are in the middle of the error handling. Need to reject this apply |
| */ |
| if (req->request_id != apply->request_id) { |
| rc = -EFAULT; |
| goto end; |
| } |
| |
| CAM_DBG(CAM_ISP, "Apply request %lld", req->request_id); |
| req_isp = (struct cam_isp_ctx_req *) req->req_priv; |
| |
| req_isp->bubble_report = apply->report_if_bubble; |
| |
| cfg.ctxt_to_hw_map = ctx_isp->hw_ctx; |
| cfg.hw_update_entries = req_isp->cfg; |
| cfg.num_hw_update_entries = req_isp->num_cfg; |
| |
| rc = ctx->hw_mgr_intf->hw_config(ctx->hw_mgr_intf->hw_mgr_priv, &cfg); |
| if (rc) { |
| CAM_ERR(CAM_ISP, "Can not apply the configuration"); |
| } else { |
| spin_lock_bh(&ctx->lock); |
| ctx_isp->substate_activated = next_state; |
| CAM_DBG(CAM_ISP, "new state %d", next_state); |
| spin_unlock_bh(&ctx->lock); |
| } |
| end: |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_apply_req_in_sof( |
| struct cam_context *ctx, struct cam_req_mgr_apply_request *apply) |
| { |
| int rc = 0; |
| struct cam_isp_context *ctx_isp = |
| (struct cam_isp_context *) ctx->ctx_priv; |
| |
| CAM_DBG(CAM_ISP, "current substate %d", |
| ctx_isp->substate_activated); |
| rc = __cam_isp_ctx_apply_req_in_activated_state(ctx, apply, |
| CAM_ISP_CTX_ACTIVATED_APPLIED); |
| CAM_DBG(CAM_ISP, "new substate %d", ctx_isp->substate_activated); |
| |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_apply_req_in_epoch( |
| struct cam_context *ctx, struct cam_req_mgr_apply_request *apply) |
| { |
| int rc = 0; |
| struct cam_isp_context *ctx_isp = |
| (struct cam_isp_context *) ctx->ctx_priv; |
| |
| CAM_DBG(CAM_ISP, "current substate %d", |
| ctx_isp->substate_activated); |
| rc = __cam_isp_ctx_apply_req_in_activated_state(ctx, apply, |
| CAM_ISP_CTX_ACTIVATED_APPLIED); |
| CAM_DBG(CAM_ISP, "new substate %d", ctx_isp->substate_activated); |
| |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_apply_req_in_bubble( |
| struct cam_context *ctx, struct cam_req_mgr_apply_request *apply) |
| { |
| int rc = 0; |
| struct cam_isp_context *ctx_isp = |
| (struct cam_isp_context *) ctx->ctx_priv; |
| |
| CAM_DBG(CAM_ISP, "current substate %d", |
| ctx_isp->substate_activated); |
| rc = __cam_isp_ctx_apply_req_in_activated_state(ctx, apply, |
| CAM_ISP_CTX_ACTIVATED_BUBBLE_APPLIED); |
| CAM_DBG(CAM_ISP, "new substate %d", ctx_isp->substate_activated); |
| |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_flush_req(struct cam_context *ctx, |
| struct list_head *req_list, struct cam_req_mgr_flush_request *flush_req) |
| { |
| int i, rc; |
| uint32_t cancel_req_id_found = 0; |
| struct cam_ctx_request *req; |
| struct cam_ctx_request *req_temp; |
| struct cam_isp_ctx_req *req_isp; |
| |
| spin_lock(&ctx->lock); |
| if (list_empty(req_list)) { |
| spin_unlock(&ctx->lock); |
| CAM_DBG(CAM_ISP, "request list is empty"); |
| return 0; |
| } |
| |
| list_for_each_entry_safe(req, req_temp, req_list, list) { |
| if ((flush_req->type == CAM_REQ_MGR_FLUSH_TYPE_CANCEL_REQ) |
| && (req->request_id != flush_req->req_id)) |
| continue; |
| |
| list_del_init(&req->list); |
| req_isp = (struct cam_isp_ctx_req *) req->req_priv; |
| for (i = 0; i < req_isp->num_fence_map_out; i++) { |
| if (req_isp->fence_map_out[i].sync_id != -1) { |
| CAM_DBG(CAM_ISP, "Flush req 0x%llx, fence %d", |
| req->request_id, |
| req_isp->fence_map_out[i].sync_id); |
| rc = cam_sync_signal( |
| req_isp->fence_map_out[i].sync_id, |
| CAM_SYNC_STATE_SIGNALED_ERROR); |
| if (rc) |
| CAM_ERR_RATE_LIMIT(CAM_ISP, |
| "signal fence failed\n"); |
| req_isp->fence_map_out[i].sync_id = -1; |
| } |
| } |
| list_add_tail(&req->list, &ctx->free_req_list); |
| |
| /* If flush request id found, exit the loop */ |
| if (flush_req->type == CAM_REQ_MGR_FLUSH_TYPE_CANCEL_REQ) { |
| cancel_req_id_found = 1; |
| break; |
| } |
| } |
| spin_unlock(&ctx->lock); |
| |
| if (flush_req->type == CAM_REQ_MGR_FLUSH_TYPE_CANCEL_REQ && |
| !cancel_req_id_found) |
| CAM_DBG(CAM_ISP, |
| "Flush request id:%lld is not found in the list", |
| flush_req->req_id); |
| |
| return 0; |
| } |
| |
| static int __cam_isp_ctx_flush_req_in_top_state( |
| struct cam_context *ctx, |
| struct cam_req_mgr_flush_request *flush_req) |
| { |
| int rc = 0; |
| |
| CAM_DBG(CAM_ISP, "try to flush pending list"); |
| rc = __cam_isp_ctx_flush_req(ctx, &ctx->pending_req_list, flush_req); |
| CAM_DBG(CAM_ISP, "Flush request in top state %d", |
| ctx->state); |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_flush_req_in_ready( |
| struct cam_context *ctx, |
| struct cam_req_mgr_flush_request *flush_req) |
| { |
| int rc = 0; |
| |
| CAM_DBG(CAM_ISP, "try to flush pending list"); |
| rc = __cam_isp_ctx_flush_req(ctx, &ctx->pending_req_list, flush_req); |
| |
| /* if nothing is in pending req list, change state to acquire*/ |
| spin_lock(&ctx->lock); |
| if (list_empty(&ctx->pending_req_list)) |
| ctx->state = CAM_CTX_ACQUIRED; |
| spin_unlock(&ctx->lock); |
| |
| trace_cam_context_state("ISP", ctx); |
| |
| CAM_DBG(CAM_ISP, "Flush request in ready state. next state %d", |
| ctx->state); |
| return rc; |
| } |
| |
| static struct cam_ctx_ops |
| cam_isp_ctx_activated_state_machine[CAM_ISP_CTX_ACTIVATED_MAX] = { |
| /* SOF */ |
| { |
| .ioctl_ops = {}, |
| .crm_ops = { |
| .apply_req = __cam_isp_ctx_apply_req_in_sof, |
| }, |
| .irq_ops = NULL, |
| }, |
| /* APPLIED */ |
| { |
| .ioctl_ops = {}, |
| .crm_ops = {}, |
| .irq_ops = NULL, |
| }, |
| /* EPOCH */ |
| { |
| .ioctl_ops = {}, |
| .crm_ops = { |
| .apply_req = __cam_isp_ctx_apply_req_in_epoch, |
| }, |
| .irq_ops = NULL, |
| }, |
| /* BUBBLE */ |
| { |
| .ioctl_ops = {}, |
| .crm_ops = { |
| .apply_req = __cam_isp_ctx_apply_req_in_bubble, |
| }, |
| .irq_ops = NULL, |
| }, |
| /* Bubble Applied */ |
| { |
| .ioctl_ops = {}, |
| .crm_ops = {}, |
| .irq_ops = NULL, |
| }, |
| /* HALT */ |
| { |
| .ioctl_ops = {}, |
| .crm_ops = {}, |
| .irq_ops = NULL, |
| }, |
| }; |
| |
| static int __cam_isp_ctx_rdi_only_sof_in_top_state( |
| struct cam_isp_context *ctx_isp, void *evt_data) |
| { |
| int rc = 0; |
| struct cam_context *ctx = ctx_isp->base; |
| struct cam_req_mgr_trigger_notify notify; |
| struct cam_isp_hw_sof_event_data *sof_event_data = evt_data; |
| uint64_t request_id = 0; |
| |
| if (!evt_data) { |
| CAM_ERR(CAM_ISP, "in valid sof event data"); |
| return -EINVAL; |
| } |
| |
| ctx_isp->frame_id++; |
| ctx_isp->sof_timestamp_val = sof_event_data->timestamp; |
| CAM_DBG(CAM_ISP, "frame id: %lld time stamp:0x%llx", |
| ctx_isp->frame_id, ctx_isp->sof_timestamp_val); |
| |
| /* |
| * notify reqmgr with sof signal. Note, due to scheduling delay |
| * we can run into situation that two active requests has already |
| * be in the active queue while we try to do the notification. |
| * In this case, we need to skip the current notification. This |
| * helps the state machine to catch up the delay. |
| */ |
| if (ctx->ctx_crm_intf && ctx->ctx_crm_intf->notify_trigger && |
| ctx_isp->active_req_cnt <= 2) { |
| notify.link_hdl = ctx->link_hdl; |
| notify.dev_hdl = ctx->dev_hdl; |
| notify.frame_id = ctx_isp->frame_id; |
| notify.trigger = CAM_TRIGGER_POINT_SOF; |
| |
| ctx->ctx_crm_intf->notify_trigger(¬ify); |
| CAM_DBG(CAM_ISP, "Notify CRM SOF frame %lld", |
| ctx_isp->frame_id); |
| |
| /* |
| * It is idle frame with out any applied request id, send |
| * request id as zero |
| */ |
| __cam_isp_ctx_send_sof_timestamp(ctx_isp, request_id, |
| CAM_REQ_MGR_SOF_EVENT_SUCCESS); |
| } else { |
| CAM_ERR(CAM_ISP, "Can not notify SOF to CRM"); |
| } |
| |
| if (list_empty(&ctx->active_req_list)) |
| ctx_isp->substate_activated = CAM_ISP_CTX_ACTIVATED_SOF; |
| else |
| CAM_DBG(CAM_ISP, "Still need to wait for the buf done"); |
| |
| CAM_DBG(CAM_ISP, "next substate %d", |
| ctx_isp->substate_activated); |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_rdi_only_sof_in_applied_state( |
| struct cam_isp_context *ctx_isp, void *evt_data) |
| { |
| struct cam_isp_hw_sof_event_data *sof_event_data = evt_data; |
| |
| if (!evt_data) { |
| CAM_ERR(CAM_ISP, "in valid sof event data"); |
| return -EINVAL; |
| } |
| |
| ctx_isp->frame_id++; |
| ctx_isp->sof_timestamp_val = sof_event_data->timestamp; |
| CAM_DBG(CAM_ISP, "frame id: %lld time stamp:0x%llx", |
| ctx_isp->frame_id, ctx_isp->sof_timestamp_val); |
| |
| ctx_isp->substate_activated = CAM_ISP_CTX_ACTIVATED_BUBBLE_APPLIED; |
| CAM_DBG(CAM_ISP, "next substate %d", ctx_isp->substate_activated); |
| |
| return 0; |
| } |
| |
| static int __cam_isp_ctx_rdi_only_sof_in_bubble_applied( |
| struct cam_isp_context *ctx_isp, void *evt_data) |
| { |
| struct cam_ctx_request *req; |
| struct cam_isp_ctx_req *req_isp; |
| struct cam_context *ctx = ctx_isp->base; |
| struct cam_isp_hw_sof_event_data *sof_event_data = evt_data; |
| uint64_t request_id = 0; |
| |
| ctx_isp->frame_id++; |
| ctx_isp->sof_timestamp_val = sof_event_data->timestamp; |
| CAM_DBG(CAM_ISP, "frame id: %lld time stamp:0x%llx", |
| ctx_isp->frame_id, ctx_isp->sof_timestamp_val); |
| |
| if (list_empty(&ctx->pending_req_list)) { |
| /* |
| * If no pending req in epoch, this is an error case. |
| * The recovery is to go back to sof state |
| */ |
| CAM_ERR(CAM_ISP, "No pending request"); |
| ctx_isp->substate_activated = CAM_ISP_CTX_ACTIVATED_SOF; |
| |
| /* Send SOF event as empty frame*/ |
| __cam_isp_ctx_send_sof_timestamp(ctx_isp, request_id, |
| CAM_REQ_MGR_SOF_EVENT_SUCCESS); |
| |
| goto end; |
| } |
| |
| req = list_first_entry(&ctx->pending_req_list, struct cam_ctx_request, |
| list); |
| req_isp = (struct cam_isp_ctx_req *)req->req_priv; |
| |
| CAM_DBG(CAM_ISP, "Report Bubble flag %d", req_isp->bubble_report); |
| if (req_isp->bubble_report && ctx->ctx_crm_intf && |
| ctx->ctx_crm_intf->notify_err) { |
| struct cam_req_mgr_error_notify notify; |
| |
| notify.link_hdl = ctx->link_hdl; |
| notify.dev_hdl = ctx->dev_hdl; |
| notify.req_id = req->request_id; |
| notify.error = CRM_KMD_ERR_BUBBLE; |
| ctx->ctx_crm_intf->notify_err(¬ify); |
| CAM_DBG(CAM_ISP, "Notify CRM about Bubble frame %lld", |
| ctx_isp->frame_id); |
| } else { |
| /* |
| * Since can not bubble report, always move the request to |
| * active list. |
| */ |
| list_del_init(&req->list); |
| list_add_tail(&req->list, &ctx->active_req_list); |
| ctx_isp->active_req_cnt++; |
| CAM_DBG(CAM_ISP, "move request %lld to active list(cnt = %d)", |
| req->request_id, ctx_isp->active_req_cnt); |
| req_isp->bubble_report = 0; |
| } |
| |
| request_id = req->request_id; |
| __cam_isp_ctx_send_sof_timestamp(ctx_isp, request_id, |
| CAM_REQ_MGR_SOF_EVENT_ERROR); |
| |
| /* change the state to bubble, as reg update has not come */ |
| ctx_isp->substate_activated = CAM_ISP_CTX_ACTIVATED_BUBBLE; |
| CAM_DBG(CAM_ISP, "next substate %d", ctx_isp->substate_activated); |
| end: |
| return 0; |
| } |
| |
| static int __cam_isp_ctx_rdi_only_sof_in_bubble_state( |
| struct cam_isp_context *ctx_isp, void *evt_data) |
| { |
| uint32_t i; |
| struct cam_ctx_request *req; |
| struct cam_context *ctx = ctx_isp->base; |
| struct cam_req_mgr_trigger_notify notify; |
| struct cam_isp_hw_sof_event_data *sof_event_data = evt_data; |
| struct cam_isp_ctx_req *req_isp; |
| uint64_t request_id = 0; |
| |
| if (!evt_data) { |
| CAM_ERR(CAM_ISP, "in valid sof event data"); |
| return -EINVAL; |
| } |
| |
| ctx_isp->frame_id++; |
| ctx_isp->sof_timestamp_val = sof_event_data->timestamp; |
| CAM_DBG(CAM_ISP, "frame id: %lld time stamp:0x%llx", |
| ctx_isp->frame_id, ctx_isp->sof_timestamp_val); |
| /* |
| * Signal all active requests with error and move the all the active |
| * requests to free list |
| */ |
| while (!list_empty(&ctx->active_req_list)) { |
| req = list_first_entry(&ctx->active_req_list, |
| struct cam_ctx_request, list); |
| list_del_init(&req->list); |
| req_isp = (struct cam_isp_ctx_req *) req->req_priv; |
| CAM_DBG(CAM_ISP, "signal fence in active list. fence num %d", |
| req_isp->num_fence_map_out); |
| for (i = 0; i < req_isp->num_fence_map_out; i++) |
| if (req_isp->fence_map_out[i].sync_id != -1) { |
| cam_sync_signal( |
| req_isp->fence_map_out[i].sync_id, |
| CAM_SYNC_STATE_SIGNALED_ERROR); |
| } |
| list_add_tail(&req->list, &ctx->free_req_list); |
| } |
| |
| /* notify reqmgr with sof signal */ |
| if (ctx->ctx_crm_intf && ctx->ctx_crm_intf->notify_trigger) { |
| notify.link_hdl = ctx->link_hdl; |
| notify.dev_hdl = ctx->dev_hdl; |
| notify.frame_id = ctx_isp->frame_id; |
| notify.trigger = CAM_TRIGGER_POINT_SOF; |
| |
| ctx->ctx_crm_intf->notify_trigger(¬ify); |
| CAM_DBG(CAM_ISP, "Notify CRM SOF frame %lld", |
| ctx_isp->frame_id); |
| |
| } else { |
| CAM_ERR(CAM_ISP, "Can not notify SOF to CRM"); |
| } |
| |
| /* |
| * It is idle frame with out any applied request id, send |
| * request id as zero |
| */ |
| __cam_isp_ctx_send_sof_timestamp(ctx_isp, request_id, |
| CAM_REQ_MGR_SOF_EVENT_SUCCESS); |
| |
| ctx_isp->substate_activated = CAM_ISP_CTX_ACTIVATED_SOF; |
| |
| CAM_DBG(CAM_ISP, "next substate %d", |
| ctx_isp->substate_activated); |
| |
| return 0; |
| } |
| |
| static int __cam_isp_ctx_rdi_only_reg_upd_in_bubble_applied_state( |
| struct cam_isp_context *ctx_isp, void *evt_data) |
| { |
| struct cam_ctx_request *req; |
| struct cam_context *ctx = ctx_isp->base; |
| struct cam_isp_ctx_req *req_isp; |
| struct cam_req_mgr_trigger_notify notify; |
| uint64_t request_id = 0; |
| |
| /* notify reqmgr with sof signal*/ |
| if (ctx->ctx_crm_intf && ctx->ctx_crm_intf->notify_trigger) { |
| if (list_empty(&ctx->pending_req_list)) { |
| CAM_ERR(CAM_ISP, "Reg upd ack with no pending request"); |
| goto error; |
| } |
| req = list_first_entry(&ctx->pending_req_list, |
| struct cam_ctx_request, list); |
| list_del_init(&req->list); |
| |
| req_isp = (struct cam_isp_ctx_req *) req->req_priv; |
| request_id = req->request_id; |
| if (req_isp->num_fence_map_out != 0) { |
| list_add_tail(&req->list, &ctx->active_req_list); |
| ctx_isp->active_req_cnt++; |
| CAM_DBG(CAM_ISP, |
| "move request %lld to active list(cnt = %d)", |
| req->request_id, ctx_isp->active_req_cnt); |
| } else { |
| /* no io config, so the request is completed. */ |
| list_add_tail(&req->list, &ctx->free_req_list); |
| CAM_DBG(CAM_ISP, |
| "move active req %lld to free list(cnt=%d)", |
| req->request_id, ctx_isp->active_req_cnt); |
| } |
| |
| notify.link_hdl = ctx->link_hdl; |
| notify.dev_hdl = ctx->dev_hdl; |
| notify.frame_id = ctx_isp->frame_id; |
| notify.trigger = CAM_TRIGGER_POINT_SOF; |
| |
| ctx->ctx_crm_intf->notify_trigger(¬ify); |
| CAM_DBG(CAM_ISP, "Notify CRM SOF frame %lld", |
| ctx_isp->frame_id); |
| } else { |
| CAM_ERR(CAM_ISP, "Can not notify SOF to CRM"); |
| } |
| __cam_isp_ctx_send_sof_timestamp(ctx_isp, request_id, |
| CAM_REQ_MGR_SOF_EVENT_SUCCESS); |
| |
| ctx_isp->substate_activated = CAM_ISP_CTX_ACTIVATED_EPOCH; |
| CAM_DBG(CAM_ISP, "next substate %d", ctx_isp->substate_activated); |
| |
| return 0; |
| error: |
| /* Send SOF event as idle frame*/ |
| __cam_isp_ctx_send_sof_timestamp(ctx_isp, request_id, |
| CAM_REQ_MGR_SOF_EVENT_SUCCESS); |
| |
| /* |
| * There is no request in the pending list, move the sub state machine |
| * to SOF sub state |
| */ |
| ctx_isp->substate_activated = CAM_ISP_CTX_ACTIVATED_SOF; |
| |
| return 0; |
| } |
| |
| static struct cam_isp_ctx_irq_ops |
| cam_isp_ctx_rdi_only_activated_state_machine_irq |
| [CAM_ISP_CTX_ACTIVATED_MAX] = { |
| /* SOF */ |
| { |
| .irq_ops = { |
| NULL, |
| __cam_isp_ctx_rdi_only_sof_in_top_state, |
| __cam_isp_ctx_reg_upd_in_sof, |
| NULL, |
| NULL, |
| NULL, |
| }, |
| }, |
| /* APPLIED */ |
| { |
| .irq_ops = { |
| __cam_isp_ctx_handle_error, |
| __cam_isp_ctx_rdi_only_sof_in_applied_state, |
| NULL, |
| NULL, |
| NULL, |
| __cam_isp_ctx_buf_done_in_applied, |
| }, |
| }, |
| /* EPOCH */ |
| { |
| .irq_ops = { |
| __cam_isp_ctx_handle_error, |
| __cam_isp_ctx_rdi_only_sof_in_top_state, |
| NULL, |
| NULL, |
| NULL, |
| __cam_isp_ctx_buf_done_in_epoch, |
| }, |
| }, |
| /* BUBBLE*/ |
| { |
| .irq_ops = { |
| __cam_isp_ctx_handle_error, |
| __cam_isp_ctx_rdi_only_sof_in_bubble_state, |
| NULL, |
| NULL, |
| NULL, |
| __cam_isp_ctx_buf_done_in_bubble, |
| }, |
| }, |
| /* BUBBLE APPLIED ie PRE_BUBBLE */ |
| { |
| .irq_ops = { |
| __cam_isp_ctx_handle_error, |
| __cam_isp_ctx_rdi_only_sof_in_bubble_applied, |
| __cam_isp_ctx_rdi_only_reg_upd_in_bubble_applied_state, |
| NULL, |
| NULL, |
| __cam_isp_ctx_buf_done_in_bubble_applied, |
| }, |
| }, |
| |
| /* HALT */ |
| { |
| }, |
| }; |
| |
| static int __cam_isp_ctx_rdi_only_apply_req_top_state( |
| struct cam_context *ctx, struct cam_req_mgr_apply_request *apply) |
| { |
| int rc = 0; |
| struct cam_isp_context *ctx_isp = |
| (struct cam_isp_context *) ctx->ctx_priv; |
| |
| CAM_DBG(CAM_ISP, "current substate %d", |
| ctx_isp->substate_activated); |
| rc = __cam_isp_ctx_apply_req_in_activated_state(ctx, apply, |
| CAM_ISP_CTX_ACTIVATED_APPLIED); |
| CAM_DBG(CAM_ISP, "new substate %d", ctx_isp->substate_activated); |
| |
| return rc; |
| } |
| |
| static struct cam_ctx_ops |
| cam_isp_ctx_rdi_only_activated_state_machine |
| [CAM_ISP_CTX_ACTIVATED_MAX] = { |
| /* SOF */ |
| { |
| .ioctl_ops = {}, |
| .crm_ops = { |
| .apply_req = __cam_isp_ctx_rdi_only_apply_req_top_state, |
| }, |
| .irq_ops = NULL, |
| }, |
| /* APPLIED */ |
| { |
| .ioctl_ops = {}, |
| .crm_ops = {}, |
| .irq_ops = NULL, |
| }, |
| /* EPOCH */ |
| { |
| .ioctl_ops = {}, |
| .crm_ops = { |
| .apply_req = __cam_isp_ctx_rdi_only_apply_req_top_state, |
| }, |
| .irq_ops = NULL, |
| }, |
| /* PRE BUBBLE */ |
| { |
| .ioctl_ops = {}, |
| .crm_ops = {}, |
| .irq_ops = NULL, |
| }, |
| /* BUBBLE */ |
| { |
| .ioctl_ops = {}, |
| .crm_ops = {}, |
| .irq_ops = NULL, |
| }, |
| /* HALT */ |
| { |
| .ioctl_ops = {}, |
| .crm_ops = {}, |
| .irq_ops = NULL, |
| }, |
| }; |
| |
| |
| /* top level state machine */ |
| static int __cam_isp_ctx_release_dev_in_top_state(struct cam_context *ctx, |
| struct cam_release_dev_cmd *cmd) |
| { |
| int rc = 0; |
| struct cam_hw_release_args rel_arg; |
| struct cam_isp_context *ctx_isp = |
| (struct cam_isp_context *) ctx->ctx_priv; |
| struct cam_req_mgr_flush_request flush_req; |
| |
| if (ctx_isp->hw_ctx) { |
| rel_arg.ctxt_to_hw_map = ctx_isp->hw_ctx; |
| ctx->hw_mgr_intf->hw_release(ctx->hw_mgr_intf->hw_mgr_priv, |
| &rel_arg); |
| ctx_isp->hw_ctx = NULL; |
| } |
| |
| ctx->session_hdl = 0; |
| ctx->dev_hdl = 0; |
| ctx->link_hdl = 0; |
| ctx->ctx_crm_intf = NULL; |
| ctx_isp->frame_id = 0; |
| ctx_isp->active_req_cnt = 0; |
| ctx_isp->reported_req_id = 0; |
| |
| /* |
| * Ideally, we should never have any active request here. |
| * But we still add some sanity check code here to help the debug |
| */ |
| if (!list_empty(&ctx->active_req_list)) |
| CAM_ERR(CAM_ISP, "Active list is not empty"); |
| |
| /* Flush all the pending request list */ |
| flush_req.type = CAM_REQ_MGR_FLUSH_TYPE_ALL; |
| flush_req.link_hdl = ctx->link_hdl; |
| flush_req.dev_hdl = ctx->dev_hdl; |
| |
| CAM_DBG(CAM_ISP, "try to flush pending list"); |
| rc = __cam_isp_ctx_flush_req(ctx, &ctx->pending_req_list, &flush_req); |
| |
| ctx->state = CAM_CTX_AVAILABLE; |
| |
| trace_cam_context_state("ISP", ctx); |
| CAM_DBG(CAM_ISP, "next state %d", ctx->state); |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_config_dev_in_top_state( |
| struct cam_context *ctx, struct cam_config_dev_cmd *cmd) |
| { |
| int rc = 0; |
| struct cam_ctx_request *req = NULL; |
| struct cam_isp_ctx_req *req_isp; |
| uint64_t packet_addr; |
| struct cam_packet *packet; |
| size_t len = 0; |
| struct cam_hw_prepare_update_args cfg; |
| struct cam_req_mgr_add_request add_req; |
| struct cam_isp_context *ctx_isp = |
| (struct cam_isp_context *) ctx->ctx_priv; |
| |
| CAM_DBG(CAM_ISP, "get free request object......"); |
| |
| /* get free request */ |
| spin_lock_bh(&ctx->lock); |
| if (!list_empty(&ctx->free_req_list)) { |
| req = list_first_entry(&ctx->free_req_list, |
| struct cam_ctx_request, list); |
| list_del_init(&req->list); |
| } |
| spin_unlock_bh(&ctx->lock); |
| |
| if (!req) { |
| CAM_ERR(CAM_ISP, "No more request obj free"); |
| rc = -ENOMEM; |
| goto end; |
| } |
| |
| req_isp = (struct cam_isp_ctx_req *) req->req_priv; |
| |
| /* for config dev, only memory handle is supported */ |
| /* map packet from the memhandle */ |
| rc = cam_mem_get_cpu_buf((int32_t) cmd->packet_handle, |
| (uint64_t *) &packet_addr, &len); |
| if (rc != 0) { |
| CAM_ERR(CAM_ISP, "Can not get packet address"); |
| rc = -EINVAL; |
| goto free_req; |
| } |
| |
| packet = (struct cam_packet *) (packet_addr + cmd->offset); |
| CAM_DBG(CAM_ISP, "pack_handle %llx", cmd->packet_handle); |
| CAM_DBG(CAM_ISP, "packet address is 0x%llx", packet_addr); |
| CAM_DBG(CAM_ISP, "packet with length %zu, offset 0x%llx", |
| len, cmd->offset); |
| CAM_DBG(CAM_ISP, "Packet request id %lld", |
| packet->header.request_id); |
| CAM_DBG(CAM_ISP, "Packet size 0x%x", packet->header.size); |
| CAM_DBG(CAM_ISP, "packet op %d", packet->header.op_code); |
| |
| /* preprocess the configuration */ |
| memset(&cfg, 0, sizeof(cfg)); |
| cfg.packet = packet; |
| cfg.ctxt_to_hw_map = ctx_isp->hw_ctx; |
| cfg.max_hw_update_entries = CAM_ISP_CTX_CFG_MAX; |
| cfg.hw_update_entries = req_isp->cfg; |
| cfg.max_out_map_entries = CAM_ISP_CTX_RES_MAX; |
| cfg.max_in_map_entries = CAM_ISP_CTX_RES_MAX; |
| cfg.out_map_entries = req_isp->fence_map_out; |
| cfg.in_map_entries = req_isp->fence_map_in; |
| |
| CAM_DBG(CAM_ISP, "try to prepare config packet......"); |
| |
| rc = ctx->hw_mgr_intf->hw_prepare_update( |
| ctx->hw_mgr_intf->hw_mgr_priv, &cfg); |
| if (rc != 0) { |
| CAM_ERR(CAM_ISP, "Prepare config packet failed in HW layer"); |
| rc = -EFAULT; |
| goto free_req; |
| } |
| req_isp->num_cfg = cfg.num_hw_update_entries; |
| req_isp->num_fence_map_out = cfg.num_out_map_entries; |
| req_isp->num_fence_map_in = cfg.num_in_map_entries; |
| req_isp->num_acked = 0; |
| |
| CAM_DBG(CAM_ISP, "num_entry: %d, num fence out: %d, num fence in: %d", |
| req_isp->num_cfg, req_isp->num_fence_map_out, |
| req_isp->num_fence_map_in); |
| |
| req->request_id = packet->header.request_id; |
| req->status = 1; |
| |
| if (ctx->state == CAM_CTX_ACTIVATED && ctx->ctx_crm_intf->add_req) { |
| add_req.link_hdl = ctx->link_hdl; |
| add_req.dev_hdl = ctx->dev_hdl; |
| add_req.req_id = req->request_id; |
| rc = ctx->ctx_crm_intf->add_req(&add_req); |
| if (rc) { |
| CAM_ERR(CAM_ISP, "Error: Adding request id=%llu", |
| req->request_id); |
| goto free_req; |
| } |
| } |
| |
| CAM_DBG(CAM_ISP, "Packet request id 0x%llx", |
| packet->header.request_id); |
| |
| spin_lock_bh(&ctx->lock); |
| list_add_tail(&req->list, &ctx->pending_req_list); |
| spin_unlock_bh(&ctx->lock); |
| |
| CAM_DBG(CAM_ISP, "Preprocessing Config %lld successful", |
| req->request_id); |
| |
| return rc; |
| |
| free_req: |
| spin_lock_bh(&ctx->lock); |
| list_add_tail(&req->list, &ctx->free_req_list); |
| spin_unlock_bh(&ctx->lock); |
| end: |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_acquire_dev_in_available(struct cam_context *ctx, |
| struct cam_acquire_dev_cmd *cmd) |
| { |
| int rc = 0; |
| struct cam_hw_acquire_args param; |
| struct cam_isp_resource *isp_res = NULL; |
| struct cam_create_dev_hdl req_hdl_param; |
| struct cam_hw_release_args release; |
| struct cam_isp_context *ctx_isp = |
| (struct cam_isp_context *) ctx->ctx_priv; |
| struct cam_isp_hw_cmd_args hw_cmd_args; |
| |
| if (!ctx->hw_mgr_intf) { |
| CAM_ERR(CAM_ISP, "HW interface is not ready"); |
| rc = -EFAULT; |
| goto end; |
| } |
| |
| CAM_DBG(CAM_ISP, |
| "session_hdl 0x%x, num_resources %d, hdl type %d, res %lld", |
| cmd->session_handle, cmd->num_resources, |
| cmd->handle_type, cmd->resource_hdl); |
| |
| if (cmd->num_resources > CAM_ISP_CTX_RES_MAX) { |
| CAM_ERR(CAM_ISP, "Too much resources in the acquire"); |
| rc = -ENOMEM; |
| goto end; |
| } |
| |
| /* for now we only support user pointer */ |
| if (cmd->handle_type != 1) { |
| CAM_ERR(CAM_ISP, "Only user pointer is supported"); |
| rc = -EINVAL; |
| goto end; |
| } |
| |
| isp_res = kzalloc( |
| sizeof(*isp_res)*cmd->num_resources, GFP_KERNEL); |
| if (!isp_res) { |
| rc = -ENOMEM; |
| goto end; |
| } |
| |
| CAM_DBG(CAM_ISP, "start copy %d resources from user", |
| cmd->num_resources); |
| |
| if (copy_from_user(isp_res, (void __user *)cmd->resource_hdl, |
| sizeof(*isp_res)*cmd->num_resources)) { |
| rc = -EFAULT; |
| goto free_res; |
| } |
| |
| param.context_data = ctx; |
| param.event_cb = ctx->irq_cb_intf; |
| param.num_acq = cmd->num_resources; |
| param.acquire_info = (uint64_t) isp_res; |
| |
| /* call HW manager to reserve the resource */ |
| rc = ctx->hw_mgr_intf->hw_acquire(ctx->hw_mgr_intf->hw_mgr_priv, |
| ¶m); |
| if (rc != 0) { |
| CAM_ERR(CAM_ISP, "Acquire device failed"); |
| goto free_res; |
| } |
| |
| /* Query the context has rdi only resource */ |
| hw_cmd_args.ctxt_to_hw_map = param.ctxt_to_hw_map; |
| hw_cmd_args.cmd_type = CAM_ISP_HW_MGR_CMD_IS_RDI_ONLY_CONTEXT; |
| rc = ctx->hw_mgr_intf->hw_cmd(ctx->hw_mgr_intf->hw_mgr_priv, |
| &hw_cmd_args); |
| if (rc) { |
| CAM_ERR(CAM_ISP, "HW command failed"); |
| goto free_hw; |
| } |
| |
| if (hw_cmd_args.u.is_rdi_only_context) { |
| /* |
| * this context has rdi only resource assign rdi only |
| * state machine |
| */ |
| CAM_DBG(CAM_ISP, "RDI only session Context"); |
| |
| ctx_isp->substate_machine_irq = |
| cam_isp_ctx_rdi_only_activated_state_machine_irq; |
| ctx_isp->substate_machine = |
| cam_isp_ctx_rdi_only_activated_state_machine; |
| } else { |
| CAM_DBG(CAM_ISP, "Session has PIX or PIX and RDI resources"); |
| ctx_isp->substate_machine_irq = |
| cam_isp_ctx_activated_state_machine_irq; |
| ctx_isp->substate_machine = |
| cam_isp_ctx_activated_state_machine; |
| } |
| |
| ctx_isp->hw_ctx = param.ctxt_to_hw_map; |
| |
| req_hdl_param.session_hdl = cmd->session_handle; |
| /* bridge is not ready for these flags. so false for now */ |
| req_hdl_param.v4l2_sub_dev_flag = 0; |
| req_hdl_param.media_entity_flag = 0; |
| req_hdl_param.ops = ctx->crm_ctx_intf; |
| req_hdl_param.priv = ctx; |
| |
| CAM_DBG(CAM_ISP, "get device handle form bridge"); |
| ctx->dev_hdl = cam_create_device_hdl(&req_hdl_param); |
| if (ctx->dev_hdl <= 0) { |
| rc = -EFAULT; |
| CAM_ERR(CAM_ISP, "Can not create device handle"); |
| goto free_hw; |
| } |
| cmd->dev_handle = ctx->dev_hdl; |
| |
| /* store session information */ |
| ctx->session_hdl = cmd->session_handle; |
| |
| ctx->state = CAM_CTX_ACQUIRED; |
| |
| trace_cam_context_state("ISP", ctx); |
| CAM_DBG(CAM_ISP, "Acquire success."); |
| kfree(isp_res); |
| return rc; |
| |
| free_hw: |
| release.ctxt_to_hw_map = ctx_isp->hw_ctx; |
| ctx->hw_mgr_intf->hw_release(ctx->hw_mgr_intf->hw_mgr_priv, &release); |
| ctx_isp->hw_ctx = NULL; |
| free_res: |
| kfree(isp_res); |
| end: |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_config_dev_in_acquired(struct cam_context *ctx, |
| struct cam_config_dev_cmd *cmd) |
| { |
| int rc = 0; |
| |
| rc = __cam_isp_ctx_config_dev_in_top_state(ctx, cmd); |
| |
| if (!rc && ctx->link_hdl) { |
| ctx->state = CAM_CTX_READY; |
| trace_cam_context_state("ISP", ctx); |
| } |
| |
| CAM_DBG(CAM_ISP, "next state %d", ctx->state); |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_link_in_acquired(struct cam_context *ctx, |
| struct cam_req_mgr_core_dev_link_setup *link) |
| { |
| int rc = 0; |
| struct cam_isp_context *ctx_isp = |
| (struct cam_isp_context *) ctx->ctx_priv; |
| |
| CAM_DBG(CAM_ISP, "Enter........."); |
| |
| ctx->link_hdl = link->link_hdl; |
| ctx->ctx_crm_intf = link->crm_cb; |
| ctx_isp->subscribe_event = link->subscribe_event; |
| |
| /* change state only if we had the init config */ |
| if (!list_empty(&ctx->pending_req_list)) { |
| ctx->state = CAM_CTX_READY; |
| trace_cam_context_state("ISP", ctx); |
| } |
| |
| CAM_DBG(CAM_ISP, "next state %d", ctx->state); |
| |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_unlink_in_acquired(struct cam_context *ctx, |
| struct cam_req_mgr_core_dev_link_setup *unlink) |
| { |
| int rc = 0; |
| |
| ctx->link_hdl = 0; |
| ctx->ctx_crm_intf = NULL; |
| |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_get_dev_info_in_acquired(struct cam_context *ctx, |
| struct cam_req_mgr_device_info *dev_info) |
| { |
| int rc = 0; |
| |
| dev_info->dev_hdl = ctx->dev_hdl; |
| strlcpy(dev_info->name, CAM_ISP_DEV_NAME, sizeof(dev_info->name)); |
| dev_info->dev_id = CAM_REQ_MGR_DEVICE_IFE; |
| dev_info->p_delay = 1; |
| dev_info->trigger = CAM_TRIGGER_POINT_SOF; |
| |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_start_dev_in_ready(struct cam_context *ctx, |
| struct cam_start_stop_dev_cmd *cmd) |
| { |
| int rc = 0; |
| struct cam_hw_start_args arg; |
| struct cam_ctx_request *req; |
| struct cam_isp_ctx_req *req_isp; |
| struct cam_isp_context *ctx_isp = |
| (struct cam_isp_context *) ctx->ctx_priv; |
| |
| if (cmd->session_handle != ctx->session_hdl || |
| cmd->dev_handle != ctx->dev_hdl) { |
| rc = -EPERM; |
| goto end; |
| } |
| |
| if (list_empty(&ctx->pending_req_list)) { |
| /* should never happen */ |
| CAM_ERR(CAM_ISP, "Start device with empty configuration"); |
| rc = -EFAULT; |
| goto end; |
| } else { |
| req = list_first_entry(&ctx->pending_req_list, |
| struct cam_ctx_request, list); |
| } |
| req_isp = (struct cam_isp_ctx_req *) req->req_priv; |
| |
| if (!ctx_isp->hw_ctx) { |
| CAM_ERR(CAM_ISP, "Wrong hw context pointer."); |
| rc = -EFAULT; |
| goto end; |
| } |
| arg.ctxt_to_hw_map = ctx_isp->hw_ctx; |
| arg.hw_update_entries = req_isp->cfg; |
| arg.num_hw_update_entries = req_isp->num_cfg; |
| |
| ctx_isp->frame_id = 0; |
| ctx_isp->active_req_cnt = 0; |
| ctx_isp->reported_req_id = 0; |
| ctx_isp->substate_activated = CAM_ISP_CTX_ACTIVATED_SOF; |
| |
| /* |
| * Only place to change state before calling the hw due to |
| * hardware tasklet has higher priority that can cause the |
| * irq handling comes early |
| */ |
| ctx->state = CAM_CTX_ACTIVATED; |
| trace_cam_context_state("ISP", ctx); |
| rc = ctx->hw_mgr_intf->hw_start(ctx->hw_mgr_intf->hw_mgr_priv, &arg); |
| if (rc) { |
| /* HW failure. user need to clean up the resource */ |
| CAM_ERR(CAM_ISP, "Start HW failed"); |
| ctx->state = CAM_CTX_READY; |
| trace_cam_context_state("ISP", ctx); |
| goto end; |
| } |
| CAM_DBG(CAM_ISP, "start device success"); |
| end: |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_unlink_in_ready(struct cam_context *ctx, |
| struct cam_req_mgr_core_dev_link_setup *unlink) |
| { |
| int rc = 0; |
| |
| ctx->link_hdl = 0; |
| ctx->ctx_crm_intf = NULL; |
| ctx->state = CAM_CTX_ACQUIRED; |
| trace_cam_context_state("ISP", ctx); |
| |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_stop_dev_in_activated_unlock( |
| struct cam_context *ctx) |
| { |
| int rc = 0; |
| uint32_t i; |
| struct cam_hw_stop_args stop; |
| struct cam_ctx_request *req; |
| struct cam_isp_ctx_req *req_isp; |
| struct cam_isp_context *ctx_isp = |
| (struct cam_isp_context *) ctx->ctx_priv; |
| |
| /* Mask off all the incoming hardware events */ |
| spin_lock_bh(&ctx->lock); |
| ctx_isp->substate_activated = CAM_ISP_CTX_ACTIVATED_HALT; |
| spin_unlock_bh(&ctx->lock); |
| CAM_DBG(CAM_ISP, "next substate %d", ctx_isp->substate_activated); |
| |
| /* stop hw first */ |
| if (ctx_isp->hw_ctx) { |
| stop.ctxt_to_hw_map = ctx_isp->hw_ctx; |
| ctx->hw_mgr_intf->hw_stop(ctx->hw_mgr_intf->hw_mgr_priv, |
| &stop); |
| } |
| |
| while (!list_empty(&ctx->pending_req_list)) { |
| req = list_first_entry(&ctx->pending_req_list, |
| struct cam_ctx_request, list); |
| list_del_init(&req->list); |
| req_isp = (struct cam_isp_ctx_req *) req->req_priv; |
| CAM_DBG(CAM_ISP, "signal fence in pending list. fence num %d", |
| req_isp->num_fence_map_out); |
| for (i = 0; i < req_isp->num_fence_map_out; i++) |
| if (req_isp->fence_map_out[i].sync_id != -1) { |
| cam_sync_signal( |
| req_isp->fence_map_out[i].sync_id, |
| CAM_SYNC_STATE_SIGNALED_ERROR); |
| } |
| list_add_tail(&req->list, &ctx->free_req_list); |
| } |
| |
| while (!list_empty(&ctx->active_req_list)) { |
| req = list_first_entry(&ctx->active_req_list, |
| struct cam_ctx_request, list); |
| list_del_init(&req->list); |
| req_isp = (struct cam_isp_ctx_req *) req->req_priv; |
| CAM_DBG(CAM_ISP, "signal fence in active list. fence num %d", |
| req_isp->num_fence_map_out); |
| for (i = 0; i < req_isp->num_fence_map_out; i++) |
| if (req_isp->fence_map_out[i].sync_id != -1) { |
| cam_sync_signal( |
| req_isp->fence_map_out[i].sync_id, |
| CAM_SYNC_STATE_SIGNALED_ERROR); |
| } |
| list_add_tail(&req->list, &ctx->free_req_list); |
| } |
| ctx_isp->frame_id = 0; |
| ctx_isp->active_req_cnt = 0; |
| ctx_isp->reported_req_id = 0; |
| |
| CAM_DBG(CAM_ISP, "next state %d", ctx->state); |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_stop_dev_in_activated(struct cam_context *ctx, |
| struct cam_start_stop_dev_cmd *cmd) |
| { |
| int rc = 0; |
| |
| __cam_isp_ctx_stop_dev_in_activated_unlock(ctx); |
| ctx->state = CAM_CTX_ACQUIRED; |
| trace_cam_context_state("ISP", ctx); |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_release_dev_in_activated(struct cam_context *ctx, |
| struct cam_release_dev_cmd *cmd) |
| { |
| int rc = 0; |
| struct cam_isp_context *ctx_isp = |
| (struct cam_isp_context *) ctx->ctx_priv; |
| |
| __cam_isp_ctx_stop_dev_in_activated_unlock(ctx); |
| |
| if (ctx_isp->hw_ctx) { |
| struct cam_hw_release_args arg; |
| |
| arg.ctxt_to_hw_map = ctx_isp->hw_ctx; |
| ctx->hw_mgr_intf->hw_release(ctx->hw_mgr_intf->hw_mgr_priv, |
| &arg); |
| ctx_isp->hw_ctx = NULL; |
| } |
| |
| ctx->session_hdl = 0; |
| ctx->dev_hdl = 0; |
| ctx->link_hdl = 0; |
| ctx->ctx_crm_intf = NULL; |
| |
| ctx->state = CAM_CTX_AVAILABLE; |
| trace_cam_context_state("ISP", ctx); |
| |
| return rc; |
| } |
| |
| static int __cam_isp_ctx_apply_req(struct cam_context *ctx, |
| struct cam_req_mgr_apply_request *apply) |
| { |
| int rc = 0; |
| struct cam_isp_context *ctx_isp = |
| (struct cam_isp_context *) ctx->ctx_priv; |
| |
| trace_cam_apply_req("ISP", apply); |
| CAM_DBG(CAM_ISP, "Enter: apply req in Substate %d request _id:%lld", |
| ctx_isp->substate_activated, apply->request_id); |
| if (ctx_isp->substate_machine[ctx_isp->substate_activated]. |
| crm_ops.apply_req) { |
| rc = ctx_isp->substate_machine[ctx_isp->substate_activated]. |
| crm_ops.apply_req(ctx, apply); |
| } else { |
| CAM_ERR(CAM_ISP, "No handle function in activated substate %d", |
| ctx_isp->substate_activated); |
| rc = -EFAULT; |
| } |
| |
| if (rc) |
| CAM_ERR(CAM_ISP, "Apply failed in active substate %d", |
| ctx_isp->substate_activated); |
| return rc; |
| } |
| |
| |
| |
| static int __cam_isp_ctx_handle_irq_in_activated(void *context, |
| uint32_t evt_id, void *evt_data) |
| { |
| int rc = 0; |
| struct cam_context *ctx = (struct cam_context *)context; |
| struct cam_isp_context *ctx_isp = |
| (struct cam_isp_context *)ctx->ctx_priv; |
| |
| spin_lock_bh(&ctx->lock); |
| |
| trace_cam_isp_activated_irq(ctx, ctx_isp->substate_activated, evt_id, |
| __cam_isp_ctx_get_event_ts(evt_id, evt_data)); |
| |
| CAM_DBG(CAM_ISP, "Enter: State %d, Substate %d, evt id %d", |
| ctx->state, ctx_isp->substate_activated, evt_id); |
| if (ctx_isp->substate_machine_irq[ctx_isp->substate_activated]. |
| irq_ops[evt_id]) { |
| rc = ctx_isp->substate_machine_irq[ctx_isp->substate_activated]. |
| irq_ops[evt_id](ctx_isp, evt_data); |
| } else { |
| CAM_DBG(CAM_ISP, "No handle function for substate %d", |
| ctx_isp->substate_activated); |
| } |
| CAM_DBG(CAM_ISP, "Exit: State %d Substate %d", |
| ctx->state, ctx_isp->substate_activated); |
| spin_unlock_bh(&ctx->lock); |
| return rc; |
| } |
| |
| /* top state machine */ |
| static struct cam_ctx_ops |
| cam_isp_ctx_top_state_machine[CAM_CTX_STATE_MAX] = { |
| /* Uninit */ |
| { |
| .ioctl_ops = {}, |
| .crm_ops = {}, |
| .irq_ops = NULL, |
| }, |
| /* Available */ |
| { |
| .ioctl_ops = { |
| .acquire_dev = __cam_isp_ctx_acquire_dev_in_available, |
| }, |
| .crm_ops = {}, |
| .irq_ops = NULL, |
| }, |
| /* Acquired */ |
| { |
| .ioctl_ops = { |
| .release_dev = __cam_isp_ctx_release_dev_in_top_state, |
| .config_dev = __cam_isp_ctx_config_dev_in_acquired, |
| }, |
| .crm_ops = { |
| .link = __cam_isp_ctx_link_in_acquired, |
| .unlink = __cam_isp_ctx_unlink_in_acquired, |
| .get_dev_info = __cam_isp_ctx_get_dev_info_in_acquired, |
| .flush_req = __cam_isp_ctx_flush_req_in_top_state, |
| }, |
| .irq_ops = NULL, |
| }, |
| /* Ready */ |
| { |
| .ioctl_ops = { |
| .start_dev = __cam_isp_ctx_start_dev_in_ready, |
| .release_dev = __cam_isp_ctx_release_dev_in_top_state, |
| .config_dev = __cam_isp_ctx_config_dev_in_top_state, |
| }, |
| .crm_ops = { |
| .unlink = __cam_isp_ctx_unlink_in_ready, |
| .flush_req = __cam_isp_ctx_flush_req_in_ready, |
| }, |
| .irq_ops = NULL, |
| }, |
| /* Activated */ |
| { |
| .ioctl_ops = { |
| .stop_dev = __cam_isp_ctx_stop_dev_in_activated, |
| .release_dev = __cam_isp_ctx_release_dev_in_activated, |
| .config_dev = __cam_isp_ctx_config_dev_in_top_state, |
| }, |
| .crm_ops = { |
| .apply_req = __cam_isp_ctx_apply_req, |
| .flush_req = __cam_isp_ctx_flush_req_in_top_state, |
| }, |
| .irq_ops = __cam_isp_ctx_handle_irq_in_activated, |
| }, |
| }; |
| |
| |
| int cam_isp_context_init(struct cam_isp_context *ctx, |
| struct cam_context *ctx_base, |
| struct cam_req_mgr_kmd_ops *crm_node_intf, |
| struct cam_hw_mgr_intf *hw_intf) |
| |
| { |
| int rc = -1; |
| int i; |
| |
| if (!ctx || !ctx_base) { |
| CAM_ERR(CAM_ISP, "Invalid Context"); |
| goto err; |
| } |
| |
| /* ISP context setup */ |
| memset(ctx, 0, sizeof(*ctx)); |
| |
| ctx->base = ctx_base; |
| ctx->frame_id = 0; |
| ctx->active_req_cnt = 0; |
| ctx->reported_req_id = 0; |
| ctx->hw_ctx = NULL; |
| ctx->substate_activated = CAM_ISP_CTX_ACTIVATED_SOF; |
| ctx->substate_machine = cam_isp_ctx_activated_state_machine; |
| ctx->substate_machine_irq = cam_isp_ctx_activated_state_machine_irq; |
| |
| for (i = 0; i < CAM_CTX_REQ_MAX; i++) { |
| ctx->req_base[i].req_priv = &ctx->req_isp[i]; |
| ctx->req_isp[i].base = &ctx->req_base[i]; |
| } |
| |
| /* camera context setup */ |
| rc = cam_context_init(ctx_base, crm_node_intf, hw_intf, ctx->req_base, |
| CAM_CTX_REQ_MAX); |
| if (rc) { |
| CAM_ERR(CAM_ISP, "Camera Context Base init failed"); |
| goto err; |
| } |
| |
| /* link camera context with isp context */ |
| ctx_base->state_machine = cam_isp_ctx_top_state_machine; |
| ctx_base->ctx_priv = ctx; |
| |
| err: |
| return rc; |
| } |
| |
| int cam_isp_context_deinit(struct cam_isp_context *ctx) |
| { |
| int rc = 0; |
| |
| if (ctx->base) |
| cam_context_deinit(ctx->base); |
| |
| if (ctx->substate_activated != CAM_ISP_CTX_ACTIVATED_SOF) |
| CAM_ERR(CAM_ISP, "ISP context substate is invalid"); |
| |
| memset(ctx, 0, sizeof(*ctx)); |
| return rc; |
| } |
| |