threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
117 lines
3.0 KiB
C
117 lines
3.0 KiB
C
/*
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* Copyright (C) 2015 Google, Inc.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __LINUX_TRUSTY_TRUSTY_IPC_H
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#define __LINUX_TRUSTY_TRUSTY_IPC_H
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#include <linux/device.h>
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struct tipc_chan;
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struct tipc_msg_buf {
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void *buf_va;
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phys_addr_t buf_pa;
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size_t buf_sz;
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size_t wpos;
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size_t rpos;
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struct list_head node;
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};
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enum tipc_chan_event {
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TIPC_CHANNEL_CONNECTED = 1,
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TIPC_CHANNEL_DISCONNECTED,
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TIPC_CHANNEL_SHUTDOWN,
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};
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struct tipc_chan_ops {
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void (*handle_event)(void *cb_arg, int event);
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struct tipc_msg_buf *(*handle_msg)(void *cb_arg,
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struct tipc_msg_buf *mb);
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void (*handle_release)(void *cb_arg);
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};
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struct tipc_dn_chan {
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int state;
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struct mutex lock; /* protects rx_msg_queue list and channel state */
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struct tipc_chan *chan;
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wait_queue_head_t readq;
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struct completion reply_comp;
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struct list_head rx_msg_queue;
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#if defined(CONFIG_MTK_GZ_KREE)
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u32 session;
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struct mutex sess_lock;
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#endif
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};
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struct tipc_chan *tipc_create_channel(struct device *dev,
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const struct tipc_chan_ops *ops,
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void *cb_arg);
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int tipc_chan_connect(struct tipc_chan *chan, const char *port);
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int tipc_chan_queue_msg(struct tipc_chan *chan, struct tipc_msg_buf *mb);
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int tipc_chan_shutdown(struct tipc_chan *chan);
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void tipc_chan_destroy(struct tipc_chan *chan);
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struct tipc_msg_buf *tipc_chan_get_rxbuf(struct tipc_chan *chan);
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void tipc_chan_put_rxbuf(struct tipc_chan *chan, struct tipc_msg_buf *mb);
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struct tipc_msg_buf *
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tipc_chan_get_txbuf_timeout(struct tipc_chan *chan, long timeout);
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void tipc_chan_put_txbuf(struct tipc_chan *chan, struct tipc_msg_buf *mb);
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static inline size_t mb_avail_space(struct tipc_msg_buf *mb)
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{
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return mb->buf_sz - mb->wpos;
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}
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static inline size_t mb_avail_data(struct tipc_msg_buf *mb)
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{
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return mb->wpos - mb->rpos;
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}
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static inline void *mb_put_data(struct tipc_msg_buf *mb, size_t len)
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{
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void *pos = (u8 *)mb->buf_va + mb->wpos;
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BUG_ON(mb->wpos + len > mb->buf_sz);
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mb->wpos += len;
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return pos;
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}
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static inline void *mb_get_data(struct tipc_msg_buf *mb, size_t len)
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{
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void *pos = (u8 *)mb->buf_va + mb->rpos;
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BUG_ON(mb->rpos + len > mb->wpos);
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mb->rpos += len;
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return pos;
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}
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#ifdef CONFIG_MTK_ENABLE_GENIEZONE
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struct tipc_k_handle {
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struct tipc_dn_chan *dn;
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};
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int tipc_k_connect(struct tipc_k_handle *h, const char *port);
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int tipc_k_disconnect(struct tipc_k_handle *h);
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ssize_t tipc_k_read(struct tipc_k_handle *h, void *buf, size_t buf_len,
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unsigned int flags);
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ssize_t tipc_k_write(struct tipc_k_handle *h, void *buf, size_t len,
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unsigned int flags);
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#endif
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#endif /* __LINUX_TRUSTY_TRUSTY_IPC_H */
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