| /linux-6.12.1/Documentation/ABI/testing/ |
| D | sysfs-bus-rpmsg | 1 What: /sys/bus/rpmsg/devices/.../name
4 Contact: Ohad Ben-Cohen <ohad@wizery.com>
6 Every rpmsg device is a communication channel with a remote
7 processor. Channels are identified with a (textual) name,
9 rpmsg.h).
11 This sysfs entry contains the name of this channel.
13 What: /sys/bus/rpmsg/devices/.../src
16 Contact: Ohad Ben-Cohen <ohad@wizery.com>
18 Every rpmsg device is a communication channel with a remote
19 processor. Channels have a local ("source") rpmsg address,
[all …]
|
| /linux-6.12.1/sound/soc/fsl/ |
| D | fsl_rpmsg.c | 1 // SPDX-License-Identifier: GPL-2.0+
2 // Copyright 2018-2021 NXP
5 #include <linux/clk-provider.h>
11 #include <linux/rpmsg.h>
18 #include "imx-pcm.h"
43 struct fsl_rpmsg *rpmsg = snd_soc_dai_get_drvdata(dai); in fsl_rpmsg_hw_params() local
44 struct clk *p = rpmsg->mclk, *pll = NULL, *npll = NULL; in fsl_rpmsg_hw_params()
49 while (p && rpmsg->pll8k && rpmsg->pll11k) { in fsl_rpmsg_hw_params()
52 if (clk_is_match(pp, rpmsg->pll8k) || in fsl_rpmsg_hw_params()
53 clk_is_match(pp, rpmsg->pll11k)) { in fsl_rpmsg_hw_params()
[all …]
|
| D | imx-audio-rpmsg.c | 1 // SPDX-License-Identifier: GPL-2.0+
2 // Copyright 2017-2020 NXP
5 #include <linux/rpmsg.h>
6 #include "imx-pcm-rpmsg.h"
21 struct imx_audio_rpmsg *rpmsg = dev_get_drvdata(&rpdev->dev); in imx_audio_rpmsg_cb() local
27 if (!rpmsg->rpmsg_pdev) in imx_audio_rpmsg_cb()
30 info = platform_get_drvdata(rpmsg->rpmsg_pdev); in imx_audio_rpmsg_cb()
32 dev_dbg(&rpdev->dev, "get from%d: cmd:%d. %d\n", in imx_audio_rpmsg_cb()
33 src, r_msg->header.cmd, r_msg->param.resp); in imx_audio_rpmsg_cb()
35 switch (r_msg->header.type) { in imx_audio_rpmsg_cb()
[all …]
|
| D | imx-rpmsg.c | 1 // SPDX-License-Identifier: GPL-2.0+
2 // Copyright 2017-2020 NXP
14 #include <sound/soc-dapm.h>
15 #include "imx-pcm-rpmsg.h"
36 struct snd_soc_pcm_runtime *rtd = list_first_entry(&card->rtd_list, in imx_rpmsg_late_probe()
39 struct device *dev = card->dev; in imx_rpmsg_late_probe()
42 if (data->lpa) { in imx_rpmsg_late_probe()
48 codec_np = data->dai.codecs->of_node; in imx_rpmsg_late_probe()
55 codec_dev = &codec_i2c->dev; in imx_rpmsg_late_probe()
59 codec_dev = &codec_pdev->dev; in imx_rpmsg_late_probe()
[all …]
|
| D | imx-pcm-rpmsg.c | 1 // SPDX-License-Identifier: GPL-2.0+
2 // Copyright 2017-2021 NXP
4 #include <linux/dma-mapping.h>
8 #include <linux/rpmsg.h>
15 #include "imx-pcm.h"
17 #include "imx-pcm-rpmsg.h"
39 struct rpmsg_device *rpdev = info->rpdev; in imx_rpmsg_pcm_send_message()
42 mutex_lock(&info->msg_lock); in imx_rpmsg_pcm_send_message()
44 dev_err(info->dev, "rpmsg channel not ready\n"); in imx_rpmsg_pcm_send_message()
45 mutex_unlock(&info->msg_lock); in imx_rpmsg_pcm_send_message()
[all …]
|
| /linux-6.12.1/drivers/rpmsg/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0
3 menu "Rpmsg drivers"
5 # RPMSG always gets selected by whoever wants it
6 config RPMSG config
10 tristate "RPMSG device interface"
11 depends on RPMSG
14 Say Y here to export rpmsg endpoints as device files, usually found
15 in /dev. They make it possible for user-space programs to send and
16 receive rpmsg packets.
19 tristate "RPMSG control interface"
[all …]
|
| D | rpmsg_core.c | 1 // SPDX-License-Identifier: GPL-2.0
8 * Ohad Ben-Cohen <ohad@wizery.com>
16 #include <linux/rpmsg.h>
24 .name = "rpmsg",
29 * rpmsg_create_channel() - create a new rpmsg channel
30 * using its name and address info.
31 * @rpdev: rpmsg device
34 * Return: a pointer to the new rpmsg device on success, or NULL on error.
41 if (!rpdev->ops || !rpdev->ops->create_channel) { in rpmsg_create_channel()
42 dev_err(&rpdev->dev, "no create_channel ops found\n"); in rpmsg_create_channel()
[all …]
|
| D | rpmsg_ns.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) STMicroelectronics 2020 - All Rights Reserved
8 #include <linux/rpmsg.h>
9 #include <linux/rpmsg/ns.h>
15 * rpmsg_ns_register_device() - register name service device based on rpdev
19 * basis for the rpmsg name service device.
23 rpdev->src = RPMSG_NS_ADDR; in rpmsg_ns_register_device()
24 rpdev->dst = RPMSG_NS_ADDR; in rpmsg_ns_register_device()
30 /* invoked when a name service announcement arrives */
37 struct device *dev = rpdev->dev.parent; in rpmsg_ns_cb()
[all …]
|
| D | rpmsg_ctrl.c | 1 // SPDX-License-Identifier: GPL-2.0
10 * Based on rpmsg performance statistics driver by Michal Simek, which in turn
11 * was based on TI & Google OMX rpmsg driver.
22 #include <linux/rpmsg.h>
26 #include <uapi/linux/rpmsg.h>
42 * struct rpmsg_ctrldev - control device for instantiating endpoint devices
43 * @rpdev: underlaying rpmsg device
57 struct rpmsg_ctrldev *ctrldev = cdev_to_ctrldev(inode->i_cdev); in rpmsg_ctrldev_open()
59 get_device(&ctrldev->dev); in rpmsg_ctrldev_open()
60 filp->private_data = ctrldev; in rpmsg_ctrldev_open()
[all …]
|
| D | mtk_rpmsg.c | 1 // SPDX-License-Identifier: GPL-2.0
10 #include <linux/rpmsg/mtk_rpmsg.h>
36 * struct rpmsg_ns_msg - dynamic name service announcement message
37 * @name: name of remote service that is published
41 * messages, an appropriate rpmsg channel (i.e device) is created. In turn, the
42 * ->probe() handler of the appropriate rpmsg driver will be invoked
43 * (if/as-soon-as one is registered).
46 char name[RPMSG_NAME_SIZE]; member
75 struct rpmsg_endpoint *ept = &mept->ept; in mtk_rpmsg_ipi_handler()
78 ret = (*ept->cb)(ept->rpdev, data, len, ept->priv, ept->addr); in mtk_rpmsg_ipi_handler()
[all …]
|
| D | rpmsg_char.c | 1 // SPDX-License-Identifier: GPL-2.0
10 * Based on rpmsg performance statistics driver by Michal Simek, which in turn
11 * was based on TI & Google OMX rpmsg driver.
23 #include <linux/rpmsg.h>
27 #include <uapi/linux/rpmsg.h>
43 * struct rpmsg_eptdev - endpoint device context
46 * @rpdev: underlaying rpmsg device
49 * @ept: rpmsg endpoint reference, when open
53 * @default_ept: set to channel default endpoint if the default endpoint should be re-used
81 mutex_lock(&eptdev->ept_lock); in rpmsg_chrdev_eptdev_destroy()
[all …]
|
| D | virtio_rpmsg_bus.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Virtio-based remote processor messaging bus
8 * Ohad Ben-Cohen <ohad@wizery.com>
14 #include <linux/dma-mapping.h>
20 #include <linux/rpmsg.h>
21 #include <linux/rpmsg/byteorder.h>
22 #include <linux/rpmsg/ns.h>
34 * struct virtproc_info - virtual remote processor state
52 * This structure stores the rpmsg state of a given virtio remote processor
71 /* The feature bitmap for virtio rpmsg */
[all …]
|
| /linux-6.12.1/Documentation/devicetree/bindings/remoteproc/ |
| D | mtk,scp.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Tinghan Shen <tinghan.shen@mediatek.com>
13 This binding provides support for ARM Cortex M4 Co-processor found on some
19 - mediatek,mt8183-scp
20 - mediatek,mt8186-scp
21 - mediatek,mt8188-scp
22 - mediatek,mt8188-scp-dual
23 - mediatek,mt8192-scp
[all …]
|
| /linux-6.12.1/Documentation/staging/ |
| D | rpmsg.rst | 2 Remote Processor Messaging (rpmsg) Framework
7 This document describes the rpmsg bus and how to write rpmsg drivers.
8 To learn how to add rpmsg support for new platforms, check out remoteproc.txt
17 flavor of real-time OS.
19 OMAP4, for example, has dual Cortex-A9, dual Cortex-M3 and a C64x+ DSP.
20 Typically, the dual cortex-A9 is running Linux in a SMP configuration,
25 hardware accelerators, and therefore are often used to offload CPU-intensive
28 These remote processors could also be used to control latency-sensitive
34 hardware accessible only by the remote processor, reserving kernel-controlled
37 Rpmsg is a virtio-based messaging bus that allows kernel drivers to communicate
[all …]
|
| /linux-6.12.1/Documentation/devicetree/bindings/sound/ |
| D | fsl,rpmsg.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/sound/fsl,rpmsg.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: NXP Audio RPMSG CPU DAI Controller
10 - Shengjiu Wang <shengjiu.wang@nxp.com>
15 Linux side is a device which provides audio service by rpmsg channel.
17 such as SAI, MICFIL, .etc through building rpmsg channels between
18 Cortex-A and Cortex-M.
21 - $ref: sound-card-common.yaml#
[all …]
|
| /linux-6.12.1/include/linux/ |
| D | rpmsg.h | 1 /* SPDX-License-Identifier: BSD-3-Clause */
20 #include <linux/rpmsg/byteorder.h>
21 #include <uapi/linux/rpmsg.h>
29 * struct rpmsg_channel_info - channel info representation
30 * @name: name of service
35 char name[RPMSG_NAME_SIZE]; member
41 * rpmsg_device - device that belong to the rpmsg bus
43 * @id: device id (used to match between rpmsg drivers and devices)
44 * @driver_override: driver name to force a match; do not set directly,
49 * @ept: the rpmsg endpoint of this channel
[all …]
|
| /linux-6.12.1/drivers/tty/ |
| D | rpmsg_tty.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2021 STMicroelectronics - All Rights Reserved
5 * The rpmsg tty driver implements serial communication on the RPMsg bus to makes
6 * possible for user-space programs to send and receive rpmsg messages as a standard
9 * The remote processor can instantiate a new tty by requesting a "rpmsg-tty" RPMsg service.
10 * The "rpmsg-tty" service is directly used for data exchange. No flow control is implemented yet.
16 #include <linux/rpmsg.h>
31 int id; /* TTY rpmsg index */
32 struct rpmsg_device *rpdev; /* rpmsg device */
37 struct rpmsg_tty_port *cport = dev_get_drvdata(&rpdev->dev); in rpmsg_tty_cb()
[all …]
|
| /linux-6.12.1/include/uapi/linux/ |
| D | rpmsg.h | 1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
15 * struct rpmsg_endpoint_info - endpoint info representation
16 * @name: name of service
21 char name[32]; member
32 * Destroy a rpmsg char device endpoint created by the RPMSG_CREATE_EPT_IOCTL.
37 * Instantiate a new local rpmsg service device.
42 * Release a local rpmsg device.
47 * Get the flow control state of the remote rpmsg char device.
52 * Set the flow control state of the local rpmsg char device.
|
| /linux-6.12.1/drivers/platform/chrome/ |
| D | cros_ec_rpmsg.c | 1 // SPDX-License-Identifier: GPL-2.0
13 #include <linux/rpmsg.h>
23 * struct cros_ec_rpmsg_response - rpmsg message format from from EC.
36 * struct cros_ec_rpmsg - information about a EC over rpmsg.
38 * @rpdev: rpmsg device we are connected to
41 * @ept: The rpmsg endpoint of this channel.
55 * cros_ec_cmd_xfer_rpmsg - Transfer a message over rpmsg and receive the reply
63 * Return: -EINVAL
68 return -EINVAL; in cros_ec_cmd_xfer_rpmsg()
72 * cros_ec_pkt_xfer_rpmsg - Transfer a packet over rpmsg and receive the reply
[all …]
|
| /linux-6.12.1/include/linux/rpmsg/ |
| D | ns.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
7 #include <linux/rpmsg.h>
8 #include <linux/rpmsg/byteorder.h>
12 * struct rpmsg_ns_msg - dynamic name service announcement message
13 * @name: name of remote service that is published
19 * rpmsg channel (i.e device) is created/destroyed. In turn, the ->probe()
20 * or ->remove() handler of the appropriate rpmsg driver will be invoked
21 * (if/as-soon-as one is registered).
24 char name[RPMSG_NAME_SIZE]; member
30 * enum rpmsg_ns_flags - dynamic name service announcement flags
|
| /linux-6.12.1/Documentation/devicetree/bindings/mfd/ |
| D | google,cros-ec.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/mfd/google,cros-ec.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Benson Leung <bleung@chromium.org>
11 - Guenter Roeck <groeck@chromium.org>
22 - description:
24 const: google,cros-ec-i2c
25 - description:
27 const: google,cros-ec-spi
[all …]
|
| /linux-6.12.1/drivers/net/wwan/ |
| D | rpmsg_wwan_ctrl.c | 1 // SPDX-License-Identifier: GPL-2.0-only
7 #include <linux/rpmsg.h>
11 /* Lower level is a rpmsg dev, upper level is a wwan port */
25 return -ENOMEM; in rpmsg_wwan_ctrl_callback()
28 wwan_port_rx(rpwwan->wwan_port, skb); in rpmsg_wwan_ctrl_callback()
36 .src = rpwwan->rpdev->src, in rpmsg_wwan_ctrl_start()
40 strscpy(chinfo.name, rpwwan->rpdev->id.name, sizeof(chinfo.name)); in rpmsg_wwan_ctrl_start()
41 rpwwan->ept = rpmsg_create_ept(rpwwan->rpdev, rpmsg_wwan_ctrl_callback, in rpmsg_wwan_ctrl_start()
43 if (!rpwwan->ept) in rpmsg_wwan_ctrl_start()
44 return -EREMOTEIO; in rpmsg_wwan_ctrl_start()
[all …]
|
| /linux-6.12.1/samples/rpmsg/ |
| D | rpmsg_client_sample.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Remote processor messaging - sample client driver
8 * Ohad Ben-Cohen <ohad@wizery.com>
14 #include <linux/rpmsg.h>
29 struct instance_data *idata = dev_get_drvdata(&rpdev->dev); in rpmsg_sample_cb()
31 dev_info(&rpdev->dev, "incoming msg %d (src: 0x%x)\n", in rpmsg_sample_cb()
32 ++idata->rx_count, src); in rpmsg_sample_cb()
38 if (idata->rx_count >= count) { in rpmsg_sample_cb()
39 dev_info(&rpdev->dev, "goodbye!\n"); in rpmsg_sample_cb()
44 ret = rpmsg_send(rpdev->ept, MSG, strlen(MSG)); in rpmsg_sample_cb()
[all …]
|
| /linux-6.12.1/drivers/media/platform/st/sti/delta/ |
| D | delta-ipc.c | 1 // SPDX-License-Identifier: GPL-2.0
7 #include <linux/rpmsg.h>
10 #include "delta-ipc.h"
11 #include "delta-mem.h"
38 #define msg_to_ctx(msg) ((struct delta_ipc_ctx *)(msg)->header.host_hdl)
39 #define msg_to_copro_hdl(msg) ((msg)->header.copro_hdl)
43 return (ctx->ipc_buf->paddr + (vaddr - ctx->ipc_buf->vaddr)); in to_paddr()
49 return ((data >= ctx->ipc_buf->vaddr) && in is_valid_data()
50 ((data + size) <= (ctx->ipc_buf->vaddr + ctx->ipc_buf->size))); in is_valid_data()
58 * this IPC shared memory, avoiding de-facto recopies inside delta-ipc.
[all …]
|
| /linux-6.12.1/drivers/cdx/controller/ |
| D | cdx_rpmsg.c | 1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 2022-2023, Advanced Micro Devices, Inc.
8 #include <linux/rpmsg.h>
21 { .name = "mcdi_ipc" },
24 MODULE_DEVICE_TABLE(rpmsg, cdx_rpmsg_id_table);
35 return -ENOMEM; in cdx_rpmsg_send()
40 ret = rpmsg_send(cdx_mcdi->ept, send_buf, hdr_len + sdu_len); in cdx_rpmsg_send()
55 dev = &pdev->dev; in cdx_attach_to_rproc()
57 cdx_mcdi = cdx_c->priv; in cdx_attach_to_rproc()
59 r5_core_node = of_parse_phandle(dev->of_node, "xlnx,rproc", 0); in cdx_attach_to_rproc()
[all …]
|