1328 lines
30 KiB
C
1328 lines
30 KiB
C
/****************************************************************************
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* drivers/rptun/rptun.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <inttypes.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <nuttx/arch.h>
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#include <nuttx/board.h>
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#include <nuttx/kmalloc.h>
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#include <nuttx/kthread.h>
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#include <nuttx/semaphore.h>
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#include <nuttx/rptun/openamp.h>
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#include <nuttx/rptun/rptun.h>
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#include <nuttx/power/pm.h>
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#include <nuttx/wqueue.h>
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#include <metal/utilities.h>
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#include "rptun.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#ifndef MAX
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# define MAX(a,b) ((a) > (b) ? (a) : (b))
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#endif
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#ifndef ALIGN_UP
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# define ALIGN_UP(s, a) (((s) + (a) - 1) & ~((a) - 1))
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#endif
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#define RPTUNIOC_NONE 0
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#define NO_HOLDER (INVALID_PROCESS_ID)
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#define RPTUN_STATUS_FROM_MASTER 0x8
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#define RPTUN_STATUS_MASK 0x7
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#define RPTUN_STATUS_PANIC 0x7
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/****************************************************************************
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* Private Types
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****************************************************************************/
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struct rptun_priv_s
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{
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FAR struct rptun_dev_s *dev;
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struct remoteproc rproc;
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struct rpmsg_virtio_device rvdev;
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struct rpmsg_virtio_shm_pool tx_shpool;
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struct rpmsg_virtio_shm_pool rx_shpool;
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struct metal_list bind;
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struct metal_list node;
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sem_t sem;
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unsigned long cmd;
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#ifdef CONFIG_RPTUN_WORKQUEUE
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struct work_s work;
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#else
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int tid;
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#endif
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#ifdef CONFIG_RPTUN_PM
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bool stay;
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#endif
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#ifdef CONFIG_RPTUN_PING
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struct rpmsg_endpoint ping;
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#endif
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};
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struct rptun_bind_s
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{
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char name[RPMSG_NAME_SIZE];
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uint32_t dest;
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struct metal_list node;
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};
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struct rptun_cb_s
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{
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FAR void *priv;
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rpmsg_dev_cb_t device_created;
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rpmsg_dev_cb_t device_destroy;
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rpmsg_bind_cb_t ns_bind;
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struct metal_list node;
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};
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struct rptun_store_s
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{
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struct file file;
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FAR char *buf;
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};
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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static FAR struct remoteproc *rptun_init(FAR struct remoteproc *rproc,
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FAR struct remoteproc_ops *ops,
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FAR void *arg);
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static void rptun_remove(FAR struct remoteproc *rproc);
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static int rptun_config(struct remoteproc *rproc, void *data);
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static int rptun_start(FAR struct remoteproc *rproc);
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static int rptun_stop(FAR struct remoteproc *rproc);
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static int rptun_notify(FAR struct remoteproc *rproc, uint32_t id);
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static FAR struct remoteproc_mem *
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rptun_get_mem(FAR struct remoteproc *rproc,
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FAR const char *name,
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metal_phys_addr_t pa,
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metal_phys_addr_t da,
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FAR void *va, size_t size,
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FAR struct remoteproc_mem *buf);
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static int rptun_wait_tx_buffer(FAR struct remoteproc *rproc);
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static void rptun_ns_bind(FAR struct rpmsg_device *rdev,
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FAR const char *name, uint32_t dest);
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static int rptun_dev_start(FAR struct remoteproc *rproc);
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static int rptun_dev_stop(FAR struct remoteproc *rproc);
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static int rptun_dev_reset(FAR struct remoteproc *rproc, int value);
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static int rptun_dev_ioctl(FAR struct file *filep, int cmd,
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unsigned long arg);
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#ifdef CONFIG_RPTUN_LOADER
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static int rptun_store_open(FAR void *store_, FAR const char *path,
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FAR const void **img_data);
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static void rptun_store_close(FAR void *store_);
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static int rptun_store_load(FAR void *store_, size_t offset,
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size_t size, FAR const void **data,
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metal_phys_addr_t pa,
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FAR struct metal_io_region *io,
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char is_blocking);
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#endif
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static metal_phys_addr_t rptun_pa_to_da(FAR struct rptun_dev_s *dev,
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metal_phys_addr_t pa);
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static metal_phys_addr_t rptun_da_to_pa(FAR struct rptun_dev_s *dev,
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metal_phys_addr_t da);
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static struct remoteproc_ops g_rptun_ops =
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{
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.init = rptun_init,
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.remove = rptun_remove,
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.config = rptun_config,
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.start = rptun_start,
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.stop = rptun_stop,
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.notify = rptun_notify,
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.get_mem = rptun_get_mem,
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.wait_tx_buffer = rptun_wait_tx_buffer,
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};
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static const struct file_operations g_rptun_devops =
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{
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NULL, /* open */
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NULL, /* close */
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NULL, /* read */
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NULL, /* write */
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NULL, /* seek */
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rptun_dev_ioctl, /* ioctl */
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NULL /* poll */
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#ifndef CONFIG_DISABLE_PSEUDOFS_OPERATIONS
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, NULL /* unlink */
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#endif
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};
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#ifdef CONFIG_RPTUN_LOADER
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static struct image_store_ops g_rptun_storeops =
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{
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.open = rptun_store_open,
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.close = rptun_store_close,
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.load = rptun_store_load,
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.features = SUPPORT_SEEK,
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};
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#endif
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static sem_t g_rptunlock = SEM_INITIALIZER(1);
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static pid_t g_holder = NO_HOLDER;
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static unsigned int g_count;
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static METAL_DECLARE_LIST(g_rptun_cb);
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static METAL_DECLARE_LIST(g_rptun_priv);
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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static int rptun_lock(void)
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{
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pid_t me = getpid();
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int ret = OK;
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/* Does this thread already hold the semaphore? */
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if (g_holder == me)
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{
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/* Yes.. just increment the reference count */
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g_count++;
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}
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else
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{
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/* No.. take the semaphore (perhaps waiting) */
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ret = nxsem_wait_uninterruptible(&g_rptunlock);
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if (ret >= 0)
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{
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/* Now this thread holds the semaphore */
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g_holder = me;
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g_count = 1;
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}
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}
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return ret;
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}
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static void rptun_unlock(void)
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{
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DEBUGASSERT(g_holder == getpid() && g_count > 0);
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/* If the count would go to zero, then release the semaphore */
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if (g_count == 1)
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{
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/* We no longer hold the semaphore */
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g_holder = NO_HOLDER;
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g_count = 0;
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nxsem_post(&g_rptunlock);
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}
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else
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{
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/* We still hold the semaphore. Just decrement the count */
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g_count--;
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}
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}
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#ifdef CONFIG_RPTUN_PM
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static inline void rptun_pm_action(FAR struct rptun_priv_s *priv,
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bool stay)
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{
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irqstate_t flags;
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flags = enter_critical_section();
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if (stay && !priv->stay)
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{
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pm_stay(0, PM_IDLE);
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priv->stay = true;
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}
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if (!stay && priv->stay && !rptun_buffer_nused(&priv->rvdev, false))
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{
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pm_relax(0, PM_IDLE);
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priv->stay = false;
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}
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leave_critical_section(flags);
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}
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#else
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# define rptun_pm_action(priv, stay)
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#endif
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static void rptun_worker(FAR void *arg)
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{
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FAR struct rptun_priv_s *priv = arg;
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switch (priv->cmd)
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{
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case RPTUNIOC_START:
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if (priv->rproc.state == RPROC_OFFLINE)
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{
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rptun_dev_start(&priv->rproc);
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}
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break;
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case RPTUNIOC_STOP:
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if (priv->rproc.state != RPROC_OFFLINE)
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{
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rptun_dev_stop(&priv->rproc);
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}
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break;
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}
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priv->cmd = RPTUNIOC_NONE;
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remoteproc_get_notification(&priv->rproc, RPTUN_NOTIFY_ALL);
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rptun_pm_action(priv, false);
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}
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static void rptun_post(FAR struct rptun_priv_s *priv)
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{
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int semcount;
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nxsem_get_value(&priv->sem, &semcount);
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while (semcount++ < 1)
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{
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nxsem_post(&priv->sem);
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}
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}
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#ifdef CONFIG_RPTUN_WORKQUEUE
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static void rptun_wakeup(FAR struct rptun_priv_s *priv)
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{
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work_queue(HPWORK, &priv->work, rptun_worker, priv, 0);
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rptun_post(priv);
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}
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static void rptun_in_recursive(int tid, FAR void *arg)
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{
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if (gettid() == tid)
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{
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*((FAR bool *)arg) = true;
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}
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}
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static bool rptun_is_recursive(FAR struct rptun_priv_s *priv)
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{
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bool in = false;
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work_foreach(HPWORK, rptun_in_recursive, &in);
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return in;
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}
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#else
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static int rptun_thread(int argc, FAR char *argv[])
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{
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FAR struct rptun_priv_s *priv;
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priv = (FAR struct rptun_priv_s *)((uintptr_t)strtoul(argv[2], NULL, 0));
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priv->tid = gettid();
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while (1)
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{
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nxsem_wait_uninterruptible(&priv->sem);
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rptun_worker(priv);
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}
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return 0;
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}
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static void rptun_wakeup(FAR struct rptun_priv_s *priv)
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{
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rptun_post(priv);
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}
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static bool rptun_is_recursive(FAR struct rptun_priv_s *priv)
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{
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return gettid() == priv->tid;
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}
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#endif
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static int rptun_callback(FAR void *arg, uint32_t vqid)
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{
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FAR struct rptun_priv_s *priv = arg;
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int status = rpmsg_virtio_get_status(&priv->rvdev);
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if ((status & VIRTIO_CONFIG_STATUS_NEEDS_RESET)
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&& (RPTUN_IS_MASTER(priv->dev) ^
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!!(status & RPTUN_STATUS_FROM_MASTER)))
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{
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status &= RPTUN_STATUS_MASK;
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if (status == RPTUN_STATUS_PANIC)
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{
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PANIC();
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}
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else
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{
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#ifdef CONFIG_BOARDCTL_RESET
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board_reset(status);
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#endif
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}
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}
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rptun_wakeup(priv);
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return OK;
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}
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static FAR struct remoteproc *rptun_init(FAR struct remoteproc *rproc,
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FAR struct remoteproc_ops *ops,
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FAR void *arg)
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{
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rproc->ops = ops;
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rproc->priv = arg;
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return rproc;
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}
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static void rptun_remove(FAR struct remoteproc *rproc)
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{
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rproc->priv = NULL;
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}
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static int rptun_config(struct remoteproc *rproc, void *data)
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{
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struct rptun_priv_s *priv = rproc->priv;
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if (RPTUN_IS_MASTER(priv->dev))
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{
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return RPTUN_CONFIG(priv->dev, data);
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}
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return 0;
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}
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static int rptun_start(FAR struct remoteproc *rproc)
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{
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FAR struct rptun_priv_s *priv = rproc->priv;
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if (RPTUN_IS_MASTER(priv->dev))
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{
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return RPTUN_START(priv->dev);
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}
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return 0;
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}
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static int rptun_stop(FAR struct remoteproc *rproc)
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{
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FAR struct rptun_priv_s *priv = rproc->priv;
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if (RPTUN_IS_MASTER(priv->dev))
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{
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return RPTUN_STOP(priv->dev);
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}
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return 0;
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}
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static int rptun_notify(FAR struct remoteproc *rproc, uint32_t id)
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{
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FAR struct rptun_priv_s *priv = rproc->priv;
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FAR struct rpmsg_virtio_device *rvdev = &priv->rvdev;
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FAR struct virtqueue *vq = rvdev->svq;
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if (rvdev->vdev && vq &&
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rvdev->vdev->vrings_info[vq->vq_queue_index].notifyid == id)
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{
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rptun_pm_action(priv, true);
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}
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RPTUN_NOTIFY(priv->dev, RPTUN_NOTIFY_ALL);
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return 0;
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}
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static FAR struct remoteproc_mem *
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rptun_get_mem(FAR struct remoteproc *rproc,
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FAR const char *name,
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metal_phys_addr_t pa,
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metal_phys_addr_t da,
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FAR void *va, size_t size,
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FAR struct remoteproc_mem *buf)
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{
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FAR struct rptun_priv_s *priv = rproc->priv;
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metal_list_init(&buf->node);
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strcpy(buf->name, name ? name : "");
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buf->io = metal_io_get_region();
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buf->size = size;
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if (pa != METAL_BAD_PHYS)
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{
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buf->pa = pa;
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buf->da = rptun_pa_to_da(priv->dev, pa);
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}
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else if (da != METAL_BAD_PHYS)
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{
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buf->pa = rptun_da_to_pa(priv->dev, da);
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buf->da = da;
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}
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else
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{
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buf->pa = metal_io_virt_to_phys(buf->io, va);
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buf->da = rptun_pa_to_da(priv->dev, buf->pa);
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}
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if (buf->pa == METAL_BAD_PHYS || buf->da == METAL_BAD_PHYS)
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{
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return NULL;
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}
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return buf;
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}
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static int rptun_wait_tx_buffer(FAR struct remoteproc *rproc)
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{
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FAR struct rptun_priv_s *priv = rproc->priv;
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if (!rptun_is_recursive(priv))
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{
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return -EAGAIN;
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}
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/* Wait to wakeup */
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nxsem_wait(&priv->sem);
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rptun_worker(priv);
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return 0;
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}
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static void *rptun_get_priv_by_rdev(FAR struct rpmsg_device *rdev)
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{
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struct rpmsg_virtio_device *rvdev;
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struct virtio_device *vdev;
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struct remoteproc_virtio *rpvdev;
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struct remoteproc *rproc;
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if (!rdev)
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{
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return NULL;
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}
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rvdev = metal_container_of(rdev, struct rpmsg_virtio_device, rdev);
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vdev = rvdev->vdev;
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if (!vdev)
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{
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return NULL;
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}
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rpvdev = metal_container_of(vdev, struct remoteproc_virtio, vdev);
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rproc = rpvdev->priv;
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if (!rproc)
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{
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return NULL;
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}
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return rproc->priv;
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}
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|
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static void rptun_ns_bind(FAR struct rpmsg_device *rdev,
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FAR const char *name, uint32_t dest)
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{
|
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FAR struct rptun_priv_s *priv = rptun_get_priv_by_rdev(rdev);
|
|
FAR struct rptun_bind_s *bind;
|
|
|
|
bind = kmm_malloc(sizeof(struct rptun_bind_s));
|
|
if (bind)
|
|
{
|
|
FAR struct metal_list *node;
|
|
FAR struct rptun_cb_s *cb;
|
|
|
|
bind->dest = dest;
|
|
strlcpy(bind->name, name, RPMSG_NAME_SIZE);
|
|
|
|
rptun_lock();
|
|
|
|
metal_list_add_tail(&priv->bind, &bind->node);
|
|
|
|
metal_list_for_each(&g_rptun_cb, node)
|
|
{
|
|
cb = metal_container_of(node, struct rptun_cb_s, node);
|
|
if (cb->ns_bind)
|
|
{
|
|
cb->ns_bind(rdev, cb->priv, name, dest);
|
|
}
|
|
}
|
|
|
|
rptun_unlock();
|
|
}
|
|
}
|
|
|
|
static void rptun_ns_unbind(FAR struct rpmsg_device *rdev,
|
|
FAR const char *name, uint32_t dest)
|
|
{
|
|
FAR struct rptun_priv_s *priv = rptun_get_priv_by_rdev(rdev);
|
|
FAR struct metal_list *node;
|
|
|
|
rptun_lock();
|
|
|
|
metal_list_for_each(&priv->bind, node)
|
|
{
|
|
struct rptun_bind_s *bind;
|
|
|
|
bind = metal_container_of(node, struct rptun_bind_s, node);
|
|
|
|
if (bind->dest == dest && !strncmp(bind->name, name, RPMSG_NAME_SIZE))
|
|
{
|
|
metal_list_del(node);
|
|
kmm_free(bind);
|
|
break;
|
|
}
|
|
}
|
|
|
|
rptun_unlock();
|
|
}
|
|
|
|
static int rptun_dev_start(FAR struct remoteproc *rproc)
|
|
{
|
|
FAR struct rptun_priv_s *priv = rproc->priv;
|
|
FAR struct virtio_device *vdev;
|
|
FAR struct rptun_rsc_s *rsc;
|
|
FAR struct metal_list *node;
|
|
FAR struct rptun_cb_s *cb;
|
|
unsigned int role = RPMSG_REMOTE;
|
|
int ret;
|
|
|
|
ret = remoteproc_config(&priv->rproc, NULL);
|
|
if (ret)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
#ifdef CONFIG_RPTUN_LOADER
|
|
if (RPTUN_GET_FIRMWARE(priv->dev))
|
|
{
|
|
struct rptun_store_s store =
|
|
{
|
|
0
|
|
};
|
|
|
|
ret = remoteproc_load(rproc, RPTUN_GET_FIRMWARE(priv->dev),
|
|
&store, &g_rptun_storeops, NULL);
|
|
if (ret)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
rsc = rproc->rsc_table;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
rsc = RPTUN_GET_RESOURCE(priv->dev);
|
|
if (!rsc)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = remoteproc_set_rsc_table(rproc, (struct resource_table *)rsc,
|
|
sizeof(struct rptun_rsc_s));
|
|
if (ret)
|
|
{
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
/* Update resource table on MASTER side */
|
|
|
|
if (RPTUN_IS_MASTER(priv->dev))
|
|
{
|
|
uint32_t tbsz;
|
|
uint32_t v0sz;
|
|
uint32_t v1sz;
|
|
uint32_t shbufsz;
|
|
metal_phys_addr_t da0;
|
|
metal_phys_addr_t da1;
|
|
uint32_t align0;
|
|
uint32_t align1;
|
|
FAR void *va0;
|
|
FAR void *va1;
|
|
FAR void *shbuf;
|
|
FAR struct metal_io_region *io;
|
|
metal_phys_addr_t pa0;
|
|
metal_phys_addr_t pa1;
|
|
|
|
align0 = rsc->rpmsg_vring0.align;
|
|
align1 = rsc->rpmsg_vring1.align;
|
|
|
|
v0sz = ALIGN_UP(vring_size(rsc->rpmsg_vring0.num, align0), align0);
|
|
v1sz = ALIGN_UP(vring_size(rsc->rpmsg_vring1.num, align1), align1);
|
|
|
|
if (rsc->rpmsg_vring0.da == 0 || rsc->rpmsg_vring1.da == 0)
|
|
{
|
|
tbsz = ALIGN_UP(sizeof(struct rptun_rsc_s), MAX(align0, align1));
|
|
|
|
va0 = (FAR char *)rsc + tbsz;
|
|
va1 = (FAR char *)rsc + tbsz + v0sz;
|
|
|
|
io = metal_io_get_region();
|
|
pa0 = metal_io_virt_to_phys(io, va0);
|
|
pa1 = metal_io_virt_to_phys(io, va1);
|
|
|
|
da0 = da1 = METAL_BAD_PHYS;
|
|
|
|
remoteproc_mmap(rproc, &pa0, &da0, v0sz, 0, NULL);
|
|
remoteproc_mmap(rproc, &pa1, &da1, v1sz, 0, NULL);
|
|
|
|
rsc->rpmsg_vring0.da = da0;
|
|
rsc->rpmsg_vring1.da = da1;
|
|
|
|
shbuf = (FAR char *)rsc + tbsz + v0sz + v1sz;
|
|
shbufsz = rsc->config.txbuf_size * rsc->rpmsg_vring0.num +
|
|
rsc->config.rxbuf_size * rsc->rpmsg_vring1.num;
|
|
|
|
rpmsg_virtio_init_shm_pool(&priv->tx_shpool, shbuf, shbufsz);
|
|
}
|
|
else
|
|
{
|
|
da0 = rsc->rpmsg_vring0.da;
|
|
shbuf = (FAR char *)remoteproc_mmap(rproc, NULL, &da0,
|
|
v0sz, 0, NULL) + v0sz;
|
|
shbufsz = rsc->config.rxbuf_size * rsc->rpmsg_vring0.num;
|
|
rpmsg_virtio_init_shm_pool(&priv->rx_shpool, shbuf, shbufsz);
|
|
|
|
da1 = rsc->rpmsg_vring1.da;
|
|
shbuf = (FAR char *)remoteproc_mmap(rproc, NULL, &da1,
|
|
v1sz, 0, NULL) + v1sz;
|
|
shbufsz = rsc->config.txbuf_size * rsc->rpmsg_vring1.num;
|
|
rpmsg_virtio_init_shm_pool(&priv->tx_shpool, shbuf, shbufsz);
|
|
}
|
|
|
|
role = RPMSG_MASTER;
|
|
}
|
|
|
|
/* Remote proc create */
|
|
|
|
vdev = remoteproc_create_virtio(rproc, 0, role, NULL);
|
|
if (!vdev)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (priv->rx_shpool.base)
|
|
{
|
|
ret = rpmsg_init_vdev_ext(&priv->rvdev, vdev, rptun_ns_bind,
|
|
metal_io_get_region(),
|
|
&priv->tx_shpool, &priv->rx_shpool);
|
|
}
|
|
else
|
|
{
|
|
ret = rpmsg_init_vdev(&priv->rvdev, vdev, rptun_ns_bind,
|
|
metal_io_get_region(), &priv->tx_shpool);
|
|
}
|
|
|
|
if (ret)
|
|
{
|
|
remoteproc_remove_virtio(rproc, vdev);
|
|
return ret;
|
|
}
|
|
|
|
priv->rvdev.rdev.ns_unbind_cb = rptun_ns_unbind;
|
|
|
|
/* Remote proc start */
|
|
|
|
ret = remoteproc_start(rproc);
|
|
if (ret)
|
|
{
|
|
remoteproc_remove_virtio(rproc, vdev);
|
|
return ret;
|
|
}
|
|
|
|
rptun_lock();
|
|
|
|
/* Register callback to mbox for receiving remote message */
|
|
|
|
RPTUN_REGISTER_CALLBACK(priv->dev, rptun_callback, priv);
|
|
|
|
/* Add priv to list */
|
|
|
|
metal_list_add_tail(&g_rptun_priv, &priv->node);
|
|
|
|
/* Broadcast device_created to all registers */
|
|
|
|
metal_list_for_each(&g_rptun_cb, node)
|
|
{
|
|
cb = metal_container_of(node, struct rptun_cb_s, node);
|
|
if (cb->device_created)
|
|
{
|
|
cb->device_created(&priv->rvdev.rdev, cb->priv);
|
|
}
|
|
}
|
|
|
|
rptun_unlock();
|
|
|
|
virtqueue_enable_cb(priv->rvdev.svq);
|
|
|
|
#ifdef CONFIG_RPTUN_PING
|
|
rptun_ping_init(&priv->rvdev, &priv->ping);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
static int rptun_dev_stop(FAR struct remoteproc *rproc)
|
|
{
|
|
FAR struct rptun_priv_s *priv = rproc->priv;
|
|
FAR struct metal_list *node;
|
|
FAR struct rptun_cb_s *cb;
|
|
|
|
#ifdef CONFIG_RPTUN_PING
|
|
rptun_ping_deinit(&priv->ping);
|
|
#endif
|
|
|
|
/* Unregister callback from mbox */
|
|
|
|
RPTUN_UNREGISTER_CALLBACK(priv->dev);
|
|
|
|
rptun_lock();
|
|
|
|
/* Remove priv from list */
|
|
|
|
metal_list_del(&priv->node);
|
|
|
|
/* Broadcast device_destroy to all registers */
|
|
|
|
metal_list_for_each(&g_rptun_cb, node)
|
|
{
|
|
cb = metal_container_of(node, struct rptun_cb_s, node);
|
|
if (cb->device_destroy)
|
|
{
|
|
cb->device_destroy(&priv->rvdev.rdev, cb->priv);
|
|
}
|
|
}
|
|
|
|
rptun_unlock();
|
|
|
|
/* Remote proc stop and shutdown */
|
|
|
|
remoteproc_shutdown(rproc);
|
|
|
|
/* Remote proc remove */
|
|
|
|
remoteproc_remove_virtio(rproc, priv->rvdev.vdev);
|
|
rpmsg_deinit_vdev(&priv->rvdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rptun_dev_reset(FAR struct remoteproc *rproc, int value)
|
|
{
|
|
FAR struct rptun_priv_s *priv = rproc->priv;
|
|
|
|
value = (value & RPTUN_STATUS_MASK) | VIRTIO_CONFIG_STATUS_NEEDS_RESET
|
|
| (RPTUN_IS_MASTER(priv->dev) ? RPTUN_STATUS_FROM_MASTER : 0);
|
|
|
|
rpmsg_virtio_set_status(&priv->rvdev, value);
|
|
|
|
return RPTUN_NOTIFY(priv->dev, RPTUN_NOTIFY_ALL);
|
|
}
|
|
|
|
static int rptun_dev_ioctl(FAR struct file *filep, int cmd,
|
|
unsigned long arg)
|
|
{
|
|
FAR struct inode *inode = filep->f_inode;
|
|
FAR struct rptun_priv_s *priv = inode->i_private;
|
|
int ret = OK;
|
|
|
|
switch (cmd)
|
|
{
|
|
case RPTUNIOC_START:
|
|
case RPTUNIOC_STOP:
|
|
priv->cmd = cmd;
|
|
rptun_wakeup(priv);
|
|
break;
|
|
case RPTUNIOC_RESET:
|
|
rptun_dev_reset(&priv->rproc, arg);
|
|
break;
|
|
case RPTUNIOC_PANIC:
|
|
rptun_dev_reset(&priv->rproc, RPTUN_STATUS_PANIC);
|
|
break;
|
|
case RPTUNIOC_DUMP:
|
|
rptun_dump(&priv->rvdev);
|
|
break;
|
|
#ifdef CONFIG_RPTUN_PING
|
|
case RPTUNIOC_PING:
|
|
rptun_ping(&priv->ping, (FAR const struct rptun_ping_s *)arg);
|
|
break;
|
|
#endif
|
|
default:
|
|
ret = -ENOTTY;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#ifdef CONFIG_RPTUN_LOADER
|
|
static int rptun_store_open(FAR void *store_,
|
|
FAR const char *path,
|
|
FAR const void **img_data)
|
|
{
|
|
FAR struct rptun_store_s *store = store_;
|
|
int len = 0x100;
|
|
int ret;
|
|
|
|
ret = file_open(&store->file, path, O_RDONLY);
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
store->buf = kmm_malloc(len);
|
|
if (!store->buf)
|
|
{
|
|
file_close(&store->file);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
*img_data = store->buf;
|
|
|
|
return file_read(&store->file, store->buf, len);
|
|
}
|
|
|
|
static void rptun_store_close(FAR void *store_)
|
|
{
|
|
FAR struct rptun_store_s *store = store_;
|
|
|
|
kmm_free(store->buf);
|
|
file_close(&store->file);
|
|
}
|
|
|
|
static int rptun_store_load(FAR void *store_, size_t offset,
|
|
size_t size, FAR const void **data,
|
|
metal_phys_addr_t pa,
|
|
FAR struct metal_io_region *io,
|
|
char is_blocking)
|
|
{
|
|
FAR struct rptun_store_s *store = store_;
|
|
FAR char *tmp;
|
|
|
|
if (pa == METAL_BAD_PHYS)
|
|
{
|
|
tmp = kmm_realloc(store->buf, size);
|
|
if (!tmp)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
store->buf = tmp;
|
|
*data = tmp;
|
|
}
|
|
else
|
|
{
|
|
tmp = metal_io_phys_to_virt(io, pa);
|
|
if (!tmp)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
file_seek(&store->file, offset, SEEK_SET);
|
|
return file_read(&store->file, tmp, size);
|
|
}
|
|
#endif
|
|
|
|
static metal_phys_addr_t rptun_pa_to_da(FAR struct rptun_dev_s *dev,
|
|
metal_phys_addr_t pa)
|
|
{
|
|
FAR const struct rptun_addrenv_s *addrenv;
|
|
uint32_t i;
|
|
|
|
addrenv = RPTUN_GET_ADDRENV(dev);
|
|
if (!addrenv)
|
|
{
|
|
return pa;
|
|
}
|
|
|
|
for (i = 0; addrenv[i].size; i++)
|
|
{
|
|
if (pa - addrenv[i].pa < addrenv[i].size)
|
|
{
|
|
return addrenv[i].da + (pa - addrenv[i].pa);
|
|
}
|
|
}
|
|
|
|
return pa;
|
|
}
|
|
|
|
static metal_phys_addr_t rptun_da_to_pa(FAR struct rptun_dev_s *dev,
|
|
metal_phys_addr_t da)
|
|
{
|
|
FAR const struct rptun_addrenv_s *addrenv;
|
|
uint32_t i;
|
|
|
|
addrenv = RPTUN_GET_ADDRENV(dev);
|
|
if (!addrenv)
|
|
{
|
|
return da;
|
|
}
|
|
|
|
for (i = 0; addrenv[i].size; i++)
|
|
{
|
|
if (da - addrenv[i].da < addrenv[i].size)
|
|
{
|
|
return addrenv[i].pa + (da - addrenv[i].da);
|
|
}
|
|
}
|
|
|
|
return da;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
int rpmsg_wait(FAR struct rpmsg_endpoint *ept, FAR sem_t *sem)
|
|
{
|
|
FAR struct rptun_priv_s *priv;
|
|
int ret;
|
|
|
|
if (!ept || !sem)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
priv = rptun_get_priv_by_rdev(ept->rdev);
|
|
if (!priv || !rptun_is_recursive(priv))
|
|
{
|
|
return nxsem_wait_uninterruptible(sem);
|
|
}
|
|
|
|
while (1)
|
|
{
|
|
ret = nxsem_trywait(sem);
|
|
if (ret >= 0)
|
|
{
|
|
break;
|
|
}
|
|
|
|
nxsem_wait(&priv->sem);
|
|
rptun_worker(priv);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int rpmsg_post(FAR struct rpmsg_endpoint *ept, FAR sem_t *sem)
|
|
{
|
|
FAR struct rptun_priv_s *priv;
|
|
int semcount;
|
|
int ret;
|
|
|
|
if (!ept || !sem)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
nxsem_get_value(sem, &semcount);
|
|
ret = nxsem_post(sem);
|
|
|
|
priv = rptun_get_priv_by_rdev(ept->rdev);
|
|
if (priv && semcount >= 0)
|
|
{
|
|
rptun_post(priv);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
FAR const char *rpmsg_get_cpuname(FAR struct rpmsg_device *rdev)
|
|
{
|
|
FAR struct rptun_priv_s *priv = rptun_get_priv_by_rdev(rdev);
|
|
|
|
return RPTUN_GET_CPUNAME(priv->dev);
|
|
}
|
|
|
|
int rpmsg_register_callback(FAR void *priv_,
|
|
rpmsg_dev_cb_t device_created,
|
|
rpmsg_dev_cb_t device_destroy,
|
|
rpmsg_bind_cb_t ns_bind)
|
|
{
|
|
FAR struct metal_list *node;
|
|
FAR struct metal_list *bnode;
|
|
FAR struct rptun_cb_s *cb;
|
|
|
|
cb = kmm_zalloc(sizeof(struct rptun_cb_s));
|
|
if (!cb)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
cb->priv = priv_;
|
|
cb->device_created = device_created;
|
|
cb->device_destroy = device_destroy;
|
|
cb->ns_bind = ns_bind;
|
|
|
|
rptun_lock();
|
|
|
|
metal_list_add_tail(&g_rptun_cb, &cb->node);
|
|
|
|
metal_list_for_each(&g_rptun_priv, node)
|
|
{
|
|
FAR struct rptun_priv_s *priv;
|
|
|
|
priv = metal_container_of(node, struct rptun_priv_s, node);
|
|
if (device_created)
|
|
{
|
|
device_created(&priv->rvdev.rdev, priv_);
|
|
}
|
|
|
|
if (ns_bind)
|
|
{
|
|
metal_list_for_each(&priv->bind, bnode)
|
|
{
|
|
struct rptun_bind_s *bind;
|
|
|
|
bind = metal_container_of(bnode, struct rptun_bind_s, node);
|
|
ns_bind(&priv->rvdev.rdev, priv_, bind->name, bind->dest);
|
|
}
|
|
}
|
|
}
|
|
|
|
rptun_unlock();
|
|
|
|
return 0;
|
|
}
|
|
|
|
void rpmsg_unregister_callback(FAR void *priv_,
|
|
rpmsg_dev_cb_t device_created,
|
|
rpmsg_dev_cb_t device_destroy,
|
|
rpmsg_bind_cb_t ns_bind)
|
|
{
|
|
FAR struct metal_list *node;
|
|
FAR struct metal_list *pnode;
|
|
|
|
rptun_lock();
|
|
|
|
metal_list_for_each(&g_rptun_cb, node)
|
|
{
|
|
struct rptun_cb_s *cb = NULL;
|
|
|
|
cb = metal_container_of(node, struct rptun_cb_s, node);
|
|
if (cb->priv == priv_ &&
|
|
cb->device_created == device_created &&
|
|
cb->device_destroy == device_destroy &&
|
|
cb->ns_bind == ns_bind)
|
|
{
|
|
if (device_destroy)
|
|
{
|
|
metal_list_for_each(&g_rptun_priv, pnode)
|
|
{
|
|
struct rptun_priv_s *priv;
|
|
|
|
priv = metal_container_of(pnode,
|
|
struct rptun_priv_s, node);
|
|
device_destroy(&priv->rvdev.rdev, priv_);
|
|
}
|
|
}
|
|
|
|
metal_list_del(&cb->node);
|
|
kmm_free(cb);
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
rptun_unlock();
|
|
}
|
|
|
|
int rptun_initialize(FAR struct rptun_dev_s *dev)
|
|
{
|
|
struct metal_init_params params = METAL_INIT_DEFAULTS;
|
|
FAR struct rptun_priv_s *priv;
|
|
#ifndef CONFIG_RPTUN_WORKQUEUE
|
|
FAR char *argv[3];
|
|
char arg1[19];
|
|
#endif
|
|
char name[32];
|
|
int ret;
|
|
|
|
ret = metal_init(¶ms);
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
priv = kmm_zalloc(sizeof(struct rptun_priv_s));
|
|
if (priv == NULL)
|
|
{
|
|
ret = -ENOMEM;
|
|
goto err_mem;
|
|
}
|
|
|
|
priv->dev = dev;
|
|
|
|
remoteproc_init(&priv->rproc, &g_rptun_ops, priv);
|
|
metal_list_init(&priv->bind);
|
|
|
|
snprintf(name, sizeof(name), "/dev/rptun/%s", RPTUN_GET_CPUNAME(dev));
|
|
ret = register_driver(name, &g_rptun_devops, 0222, priv);
|
|
if (ret < 0)
|
|
{
|
|
goto err_driver;
|
|
}
|
|
|
|
#ifdef CONFIG_RPTUN_WORKQUEUE
|
|
if (RPTUN_IS_AUTOSTART(dev))
|
|
{
|
|
priv->cmd = RPTUNIOC_START;
|
|
work_queue(HPWORK, &priv->work, rptun_worker, priv, 0);
|
|
}
|
|
|
|
nxsem_init(&priv->sem, 0, 0);
|
|
#else
|
|
if (RPTUN_IS_AUTOSTART(dev))
|
|
{
|
|
priv->cmd = RPTUNIOC_START;
|
|
nxsem_init(&priv->sem, 0, 1);
|
|
}
|
|
else
|
|
{
|
|
nxsem_init(&priv->sem, 0, 0);
|
|
}
|
|
|
|
snprintf(arg1, sizeof(arg1), "0x%" PRIxPTR, (uintptr_t)priv);
|
|
argv[0] = (void *)RPTUN_GET_CPUNAME(dev);
|
|
argv[1] = arg1;
|
|
argv[2] = NULL;
|
|
|
|
ret = kthread_create("rptun", CONFIG_RPTUN_PRIORITY,
|
|
CONFIG_RPTUN_STACKSIZE, rptun_thread, argv);
|
|
if (ret < 0)
|
|
{
|
|
unregister_driver(name);
|
|
nxsem_destroy(&priv->sem);
|
|
goto err_driver;
|
|
}
|
|
#endif
|
|
|
|
nxsem_set_protocol(&priv->sem, SEM_PRIO_NONE);
|
|
|
|
return OK;
|
|
|
|
err_driver:
|
|
kmm_free(priv);
|
|
|
|
err_mem:
|
|
metal_finish();
|
|
return ret;
|
|
}
|
|
|
|
int rptun_boot(FAR const char *cpuname)
|
|
{
|
|
struct file file;
|
|
char name[32];
|
|
int ret;
|
|
|
|
if (!cpuname)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
snprintf(name, 32, "/dev/rptun/%s", cpuname);
|
|
ret = file_open(&file, name, 0, 0);
|
|
if (ret)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
ret = file_ioctl(&file, RPTUNIOC_START, 0);
|
|
file_close(&file);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int rptun_reset(FAR const char *cpuname, int value)
|
|
{
|
|
FAR struct metal_list *node;
|
|
|
|
if (!cpuname)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
metal_list_for_each(&g_rptun_priv, node)
|
|
{
|
|
FAR struct rptun_priv_s *priv;
|
|
|
|
priv = metal_container_of(node, struct rptun_priv_s, node);
|
|
|
|
if (!strcmp(RPTUN_GET_CPUNAME(priv->dev), cpuname))
|
|
{
|
|
rptun_dev_reset(&priv->rproc, value);
|
|
}
|
|
}
|
|
|
|
return -ENOENT;
|
|
}
|
|
|
|
int rptun_panic(FAR const char *cpuname)
|
|
{
|
|
return rptun_reset(cpuname, RPTUN_STATUS_PANIC);
|
|
}
|
|
|
|
int rptun_buffer_nused(FAR struct rpmsg_virtio_device *rvdev, bool rx)
|
|
{
|
|
FAR struct virtqueue *vq = rx ? rvdev->rvq : rvdev->svq;
|
|
|
|
if ((rpmsg_virtio_get_role(rvdev) == RPMSG_MASTER) ^ rx)
|
|
{
|
|
return vq->vq_ring.avail->idx - vq->vq_ring.used->idx;
|
|
}
|
|
else
|
|
{
|
|
return vq->vq_nentries -
|
|
(vq->vq_ring.avail->idx - vq->vq_ring.used->idx);
|
|
}
|
|
}
|
|
|
|
void rptun_dump_all(void)
|
|
{
|
|
FAR struct metal_list *node;
|
|
|
|
metal_list_for_each(&g_rptun_priv, node)
|
|
{
|
|
FAR struct rptun_priv_s *priv =
|
|
metal_container_of(node, struct rptun_priv_s, node);
|
|
|
|
rptun_dump(&priv->rvdev);
|
|
}
|
|
}
|