diff options
Diffstat (limited to 'sound/soc/intel/common/sst-ipc.h')
| -rw-r--r-- | sound/soc/intel/common/sst-ipc.h | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/sound/soc/intel/common/sst-ipc.h b/sound/soc/intel/common/sst-ipc.h deleted file mode 100644 index 7ed42a640ad6..000000000000 --- a/sound/soc/intel/common/sst-ipc.h +++ /dev/null @@ -1,96 +0,0 @@ -/* - * Intel SST generic IPC Support - * - * Copyright (C) 2015, Intel Corporation. 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 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. - * - */ - -#ifndef __SST_GENERIC_IPC_H -#define __SST_GENERIC_IPC_H - -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/wait.h> -#include <linux/list.h> -#include <linux/workqueue.h> -#include <linux/sched.h> - -#define IPC_MAX_MAILBOX_BYTES 256 - -struct ipc_message { - struct list_head list; - u64 header; - - /* direction wrt host CPU */ - char *tx_data; - size_t tx_size; - char *rx_data; - size_t rx_size; - - wait_queue_head_t waitq; - bool pending; - bool complete; - bool wait; - int errno; -}; - -struct sst_generic_ipc; - -struct sst_plat_ipc_ops { - void (*tx_msg)(struct sst_generic_ipc *, struct ipc_message *); - void (*shim_dbg)(struct sst_generic_ipc *, const char *); - void (*tx_data_copy)(struct ipc_message *, char *, size_t); - u64 (*reply_msg_match)(u64 header, u64 *mask); - bool (*is_dsp_busy)(struct sst_dsp *dsp); - int (*check_dsp_lp_on)(struct sst_dsp *dsp, bool state); -}; - -/* SST generic IPC data */ -struct sst_generic_ipc { - struct device *dev; - struct sst_dsp *dsp; - - /* IPC messaging */ - struct list_head tx_list; - struct list_head rx_list; - struct list_head empty_list; - wait_queue_head_t wait_txq; - struct task_struct *tx_thread; - struct work_struct kwork; - bool pending; - struct ipc_message *msg; - int tx_data_max_size; - int rx_data_max_size; - - struct sst_plat_ipc_ops ops; -}; - -int sst_ipc_tx_message_wait(struct sst_generic_ipc *ipc, u64 header, - void *tx_data, size_t tx_bytes, void *rx_data, size_t rx_bytes); - -int sst_ipc_tx_message_nowait(struct sst_generic_ipc *ipc, u64 header, - void *tx_data, size_t tx_bytes); - -int sst_ipc_tx_message_nopm(struct sst_generic_ipc *ipc, u64 header, - void *tx_data, size_t tx_bytes, void *rx_data, size_t rx_bytes); - -struct ipc_message *sst_ipc_reply_find_msg(struct sst_generic_ipc *ipc, - u64 header); - -void sst_ipc_tx_msg_reply_complete(struct sst_generic_ipc *ipc, - struct ipc_message *msg); - -void sst_ipc_drop_all(struct sst_generic_ipc *ipc); -int sst_ipc_init(struct sst_generic_ipc *ipc); -void sst_ipc_fini(struct sst_generic_ipc *ipc); - -#endif |
