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-rw-r--r--firmware/microblaze/lib/dbsm.h90
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diff --git a/firmware/microblaze/lib/dbsm.h b/firmware/microblaze/lib/dbsm.h
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--- a/firmware/microblaze/lib/dbsm.h
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@@ -1,90 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2007 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-#ifndef INCLUDED_DBSM_H
-#define INCLUDED_DBSM_H
-
-/*
- * Double Buffering State Machine
- */
-
-#include <stdint.h>
-#include <stdbool.h>
-
-struct _dbsm;
-typedef struct _dbsm dbsm_t;
-
-/*
- * pointer to function that does packet inspection.
- *
- * If one of these returns true, it means that the s/w
- * handled that packet, and that it should NOT be passed
- * on to the normal destination port.
- */
-typedef bool (*inspector_t)(dbsm_t *sm, int buf_this);
-
-bool dbsm_nop_inspector(dbsm_t *sm, int buf_this); // returns false
-
-
-typedef struct
-{
- uint16_t port;
- uint16_t first_line;
- uint16_t last_line;
-} buf_cmd_args_t;
-
-/*!
- * double buffer state machine
- */
-struct _dbsm
-{
- uint8_t buf0; // Must be even. This machine uses buf0 and buf0+1
- uint8_t running;
- uint8_t rx_idle;
- uint8_t tx_idle;
- buf_cmd_args_t recv_args;
- buf_cmd_args_t send_args;
- inspector_t inspect;
- uint32_t precomputed_receive_to_buf_ctrl_word[2];
- uint32_t precomputed_send_from_buf_ctrl_word[2];
- int last_line_adj;
-};
-
-void dbsm_init(dbsm_t *sm, int buf0,
- const buf_cmd_args_t *recv, const buf_cmd_args_t *send,
- inspector_t inspect);
-
-void dbsm_start(dbsm_t *sm);
-void dbsm_stop(dbsm_t *sm);
-void dbsm_process_status(dbsm_t *sm, uint32_t status);
-void dbsm_handle_tx_underrun(dbsm_t *sm);
-void dbsm_handle_rx_overrun(dbsm_t *sm);
-
-/*
- * The cpu calls this when it want to ensure that it can send a buffer
- * to the same destination being used by this state machine.
- *
- * If neither buffer is EMPTYING it returns immediately. If a buffer
- * is EMPYTING, it waits for the h/w to transition to the DONE or
- * ERROR state.
- *
- * When this function returns, the caller queues it's buffer and busy
- * waits for it to complete.
- */
-void dbsm_wait_for_opening(dbsm_t *sm);
-
-#endif /* INCLUDED_DBSM_H */