mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-23 20:24:12 +08:00
a387040ab4
The format in rpmsg is defained as unsigned char, there is warning
when convert snd_pcm_format_t to it.
sound/soc/fsl/imx-pcm-rpmsg.c:164:43: sparse: warning: incorrect type in assignment (different base types)
sound/soc/fsl/imx-pcm-rpmsg.c:164:43: sparse: expected unsigned char format
sound/soc/fsl/imx-pcm-rpmsg.c:164:43: sparse: got restricted snd_pcm_format_t [usertype]
sound/soc/fsl/imx-pcm-rpmsg.c:167:43: sparse: warning: incorrect type in assignment (different base types)
sound/soc/fsl/imx-pcm-rpmsg.c:167:43: sparse: expected unsigned char format
sound/soc/fsl/imx-pcm-rpmsg.c:167:43: sparse: got restricted snd_pcm_format_t [usertype]
Refine the unused RPMSG_DSD_U16_LE and RPMSG_DSD_U32_LE for these
case to fix this sparse warning.
Fixes: 3c00eceb2a ("ASoC: imx-pcm-rpmsg: Add platform driver for audio base on rpmsg")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1620268240-1005-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
513 lines
28 KiB
C
513 lines
28 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Copyright 2017-2021 NXP
|
|
*
|
|
******************************************************************************
|
|
* Communication stack of audio with rpmsg
|
|
******************************************************************************
|
|
* Packet structure:
|
|
* A SRTM message consists of a 10 bytes header followed by 0~N bytes of data
|
|
*
|
|
* +---------------+-------------------------------+
|
|
* | | Content |
|
|
* +---------------+-------------------------------+
|
|
* | Byte Offset | 7 6 5 4 3 2 1 0 |
|
|
* +---------------+---+---+---+---+---+---+---+---+
|
|
* | 0 | Category |
|
|
* +---------------+---+---+---+---+---+---+---+---+
|
|
* | 1 ~ 2 | Version |
|
|
* +---------------+---+---+---+---+---+---+---+---+
|
|
* | 3 | Type |
|
|
* +---------------+---+---+---+---+---+---+---+---+
|
|
* | 4 | Command |
|
|
* +---------------+---+---+---+---+---+---+---+---+
|
|
* | 5 | Reserved0 |
|
|
* +---------------+---+---+---+---+---+---+---+---+
|
|
* | 6 | Reserved1 |
|
|
* +---------------+---+---+---+---+---+---+---+---+
|
|
* | 7 | Reserved2 |
|
|
* +---------------+---+---+---+---+---+---+---+---+
|
|
* | 8 | Reserved3 |
|
|
* +---------------+---+---+---+---+---+---+---+---+
|
|
* | 9 | Reserved4 |
|
|
* +---------------+---+---+---+---+---+---+---+---+
|
|
* | 10 | DATA 0 |
|
|
* +---------------+---+---+---+---+---+---+---+---+
|
|
* : : : : : : : : : : : : :
|
|
* +---------------+---+---+---+---+---+---+---+---+
|
|
* | N + 10 - 1 | DATA N-1 |
|
|
* +---------------+---+---+---+---+---+---+---+---+
|
|
*
|
|
* +----------+------------+------------------------------------------------+
|
|
* | Field | Byte | |
|
|
* +----------+------------+------------------------------------------------+
|
|
* | Category | 0 | The destination category. |
|
|
* +----------+------------+------------------------------------------------+
|
|
* | Version | 1 ~ 2 | The category version of the sender of the |
|
|
* | | | packet. |
|
|
* | | | The first byte represent the major version of |
|
|
* | | | the packet.The second byte represent the minor |
|
|
* | | | version of the packet. |
|
|
* +----------+------------+------------------------------------------------+
|
|
* | Type | 3 | The message type of current message packet. |
|
|
* +----------+------------+------------------------------------------------+
|
|
* | Command | 4 | The command byte sent to remote processor/SoC. |
|
|
* +----------+------------+------------------------------------------------+
|
|
* | Reserved | 5 ~ 9 | Reserved field for future extension. |
|
|
* +----------+------------+------------------------------------------------+
|
|
* | Data | N | The data payload of the message packet. |
|
|
* +----------+------------+------------------------------------------------+
|
|
*
|
|
* Audio control:
|
|
* SRTM Audio Control Category Request Command Table:
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | Category | Version | Type | Command | Data | Function |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x00 | 0x00 | Data[0]: Audio Device Index | Open a TX Instance. |
|
|
* | | | | | Data[1]: format | |
|
|
* | | | | | Data[2]: channels | |
|
|
* | | | | | Data[3-6]: samplerate | |
|
|
* | | | | | Data[7-10]: buffer_addr | |
|
|
* | | | | | Data[11-14]: buffer_size | |
|
|
* | | | | | Data[15-18]: period_size | |
|
|
* | | | | | Data[19-22]: buffer_tail | |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x00 | 0x01 | Data[0]: Audio Device Index | Start a TX Instance. |
|
|
* | | | | | Same as above command | |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x00 | 0x02 | Data[0]: Audio Device Index | Pause a TX Instance. |
|
|
* | | | | | Same as above command | |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x00 | 0x03 | Data[0]: Audio Device Index | Resume a TX Instance. |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x00 | 0x04 | Data[0]: Audio Device Index | Stop a TX Instance. |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x00 | 0x05 | Data[0]: Audio Device Index | Close a TX Instance. |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x00 | 0x06 | Data[0]: Audio Device Index | Set Parameters for |
|
|
* | | | | | Data[1]: format | a TX Instance. |
|
|
* | | | | | Data[2]: channels | |
|
|
* | | | | | Data[3-6]: samplerate | |
|
|
* | | | | | Data[7-22]: reserved | |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x00 | 0x07 | Data[0]: Audio Device Index | Set TX Buffer. |
|
|
* | | | | | Data[1-6]: reserved | |
|
|
* | | | | | Data[7-10]: buffer_addr | |
|
|
* | | | | | Data[11-14]: buffer_size | |
|
|
* | | | | | Data[15-18]: period_size | |
|
|
* | | | | | Data[19-22]: buffer_tail | |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x00 | 0x08 | Data[0]: Audio Device Index | Suspend a TX Instance |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x00 | 0x09 | Data[0]: Audio Device Index | Resume a TX Instance. |
|
|
* | | | | | Data[1]: format | |
|
|
* | | | | | Data[2]: channels | |
|
|
* | | | | | Data[3-6]: samplerate | |
|
|
* | | | | | Data[7-10]: buffer_addr | |
|
|
* | | | | | Data[11-14]: buffer_size | |
|
|
* | | | | | Data[15-18]: period_size | |
|
|
* | | | | | Data[19-22]: buffer_tail | |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x00 | 0x0A | Data[0]: Audio Device Index | Open a RX Instance. |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x00 | 0x0B | Data[0]: Audio Device Index | Start a RX Instance. |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x00 | 0x0C | Data[0]: Audio Device Index | Pause a RX Instance. |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x00 | 0x0D | Data[0]: Audio Device Index | Resume a RX Instance. |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x00 | 0x0E | Data[0]: Audio Device Index | Stop a RX Instance. |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x00 | 0x0F | Data[0]: Audio Device Index | Close a RX Instance. |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x00 | 0x10 | Data[0]: Audio Device Index | Set Parameters for |
|
|
* | | | | | Data[1]: format | a RX Instance. |
|
|
* | | | | | Data[2]: channels | |
|
|
* | | | | | Data[3-6]: samplerate | |
|
|
* | | | | | Data[7-22]: reserved | |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x00 | 0x11 | Data[0]: Audio Device Index | Set RX Buffer. |
|
|
* | | | | | Data[1-6]: reserved | |
|
|
* | | | | | Data[7-10]: buffer_addr | |
|
|
* | | | | | Data[11-14]: buffer_size | |
|
|
* | | | | | Data[15-18]: period_size | |
|
|
* | | | | | Data[19-22]: buffer_tail | |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x00 | 0x12 | Data[0]: Audio Device Index | Suspend a RX Instance.|
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x00 | 0x13 | Data[0]: Audio Device Index | Resume a RX Instance. |
|
|
* | | | | | Data[1]: format | |
|
|
* | | | | | Data[2]: channels | |
|
|
* | | | | | Data[3-6]: samplerate | |
|
|
* | | | | | Data[7-10]: buffer_addr | |
|
|
* | | | | | Data[11-14]: buffer_size | |
|
|
* | | | | | Data[15-18]: period_size | |
|
|
* | | | | | Data[19-22]: buffer_tail | |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x00 | 0x14 | Data[0]: Audio Device Index | Set register value |
|
|
* | | | | | Data[1-6]: reserved | to codec |
|
|
* | | | | | Data[7-10]: register | |
|
|
* | | | | | Data[11-14]: value | |
|
|
* | | | | | Data[15-22]: reserved | |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x00 | 0x15 | Data[0]: Audio Device Index | Get register value |
|
|
* | | | | | Data[1-6]: reserved | from codec |
|
|
* | | | | | Data[7-10]: register | |
|
|
* | | | | | Data[11-22]: reserved | |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* Note 1: See <List of Sample Format> for available value of
|
|
* Sample Format;
|
|
* Note 2: See <List of Audio Channels> for available value of Channels;
|
|
* Note 3: Sample Rate of Set Parameters for an Audio TX Instance
|
|
* Command and Set Parameters for an Audio RX Instance Command is
|
|
* in little-endian format.
|
|
*
|
|
* SRTM Audio Control Category Response Command Table:
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | Category | Version | Type | Command | Data | Function |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x01 | 0x00 | Data[0]: Audio Device Index | Reply for Open |
|
|
* | | | | | Data[1]: Return code | a TX Instance |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x01 | 0x01 | Data[0]: Audio Device Index | Reply for Start |
|
|
* | | | | | Data[1]: Return code | a TX Instance |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x01 | 0x02 | Data[0]: Audio Device Index | Reply for Pause |
|
|
* | | | | | Data[1]: Return code | a TX Instance |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x01 | 0x03 | Data[0]: Audio Device Index | Reply for Resume |
|
|
* | | | | | Data[1]: Return code | a TX Instance |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x01 | 0x04 | Data[0]: Audio Device Index | Reply for Stop |
|
|
* | | | | | Data[1]: Return code | a TX Instance |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x01 | 0x05 | Data[0]: Audio Device Index | Reply for Close |
|
|
* | | | | | Data[1]: Return code | a TX Instance |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x01 | 0x06 | Data[0]: Audio Device Index | Reply for Set Param |
|
|
* | | | | | Data[1]: Return code | for a TX Instance. |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x01 | 0x07 | Data[0]: Audio Device Index | Reply for Set |
|
|
* | | | | | Data[1]: Return code | TX Buffer |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x01 | 0x08 | Data[0]: Audio Device Index | Reply for Suspend |
|
|
* | | | | | Data[1]: Return code | a TX Instance |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x01 | 0x09 | Data[0]: Audio Device Index | Reply for Resume |
|
|
* | | | | | Data[1]: Return code | a TX Instance |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x01 | 0x0A | Data[0]: Audio Device Index | Reply for Open |
|
|
* | | | | | Data[1]: Return code | a TX Instance |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x01 | 0x0B | Data[0]: Audio Device Index | Reply for Start |
|
|
* | | | | | Data[1]: Return code | a TX Instance |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x01 | 0x0C | Data[0]: Audio Device Index | Reply for Pause |
|
|
* | | | | | Data[1]: Return code | a TX Instance |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x01 | 0x0D | Data[0]: Audio Device Index | Reply for Resume |
|
|
* | | | | | Data[1]: Return code | a RX Instance |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x01 | 0x0E | Data[0]: Audio Device Index | Reply for Stop |
|
|
* | | | | | Data[1]: Return code | a RX Instance |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x01 | 0x0F | Data[0]: Audio Device Index | Reply for Close |
|
|
* | | | | | Data[1]: Return code | a RX Instance |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x01 | 0x10 | Data[0]: Audio Device Index | Reply for Set Param |
|
|
* | | | | | Data[1]: Return code | for a RX Instance. |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x01 | 0x11 | Data[0]: Audio Device Index | Reply for Set |
|
|
* | | | | | Data[1]: Return code | RX Buffer |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x01 | 0x12 | Data[0]: Audio Device Index | Reply for Suspend |
|
|
* | | | | | Data[1]: Return code | a RX Instance |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x01 | 0x13 | Data[0]: Audio Device Index | Reply for Resume |
|
|
* | | | | | Data[1]: Return code | a RX Instance |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x01 | 0x14 | Data[0]: Audio Device Index | Reply for Set codec |
|
|
* | | | | | Data[1]: Return code | register value |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x01 | 0x15 | Data[0]: Audio Device Index | Reply for Get codec |
|
|
* | | | | | Data[1]: Return code | register value |
|
|
* | | | | | Data[2-6]: reserved | |
|
|
* | | | | | Data[7-10]: register | |
|
|
* | | | | | Data[11-14]: value | |
|
|
* | | | | | Data[15-22]: reserved | |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
*
|
|
* SRTM Audio Control Category Notification Command Table:
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | Category | Version | Type | Command | Data | Function |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x02 | 0x00 | Data[0]: Audio Device Index | Notify one TX period |
|
|
* | | | | | | is finished |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
* | 0x03 | 0x0100 | 0x02 | 0x01 | Data[0]: Audio Device Index | Notify one RX period |
|
|
* | | | | | | is finished |
|
|
* +----------+---------+------+---------+-------------------------------+-----------------------+
|
|
*
|
|
* List of Sample Format:
|
|
* +------------------+-----------------------+
|
|
* | Sample Format | Description |
|
|
* +------------------+-----------------------+
|
|
* | 0x0 | S16_LE |
|
|
* +------------------+-----------------------+
|
|
* | 0x1 | S24_LE |
|
|
* +------------------+-----------------------+
|
|
*
|
|
* List of Audio Channels
|
|
* +------------------+-----------------------+
|
|
* | Audio Channel | Description |
|
|
* +------------------+-----------------------+
|
|
* | 0x0 | Left Channel |
|
|
* +------------------+-----------------------+
|
|
* | 0x1 | Right Channel |
|
|
* +------------------+---------------- ------+
|
|
* | 0x2 | Left & Right Channel |
|
|
* +------------------+-----------------------+
|
|
*
|
|
*/
|
|
|
|
#ifndef _IMX_PCM_RPMSG_H
|
|
#define _IMX_PCM_RPMSG_H
|
|
|
|
#include <linux/pm_qos.h>
|
|
#include <linux/interrupt.h>
|
|
#include <sound/dmaengine_pcm.h>
|
|
|
|
#define RPMSG_TIMEOUT 1000
|
|
|
|
/* RPMSG Command (TYPE A)*/
|
|
#define TX_OPEN 0x0
|
|
#define TX_START 0x1
|
|
#define TX_PAUSE 0x2
|
|
#define TX_RESTART 0x3
|
|
#define TX_TERMINATE 0x4
|
|
#define TX_CLOSE 0x5
|
|
#define TX_HW_PARAM 0x6
|
|
#define TX_BUFFER 0x7
|
|
#define TX_SUSPEND 0x8
|
|
#define TX_RESUME 0x9
|
|
|
|
#define RX_OPEN 0xA
|
|
#define RX_START 0xB
|
|
#define RX_PAUSE 0xC
|
|
#define RX_RESTART 0xD
|
|
#define RX_TERMINATE 0xE
|
|
#define RX_CLOSE 0xF
|
|
#define RX_HW_PARAM 0x10
|
|
#define RX_BUFFER 0x11
|
|
#define RX_SUSPEND 0x12
|
|
#define RX_RESUME 0x13
|
|
#define SET_CODEC_VALUE 0x14
|
|
#define GET_CODEC_VALUE 0x15
|
|
#define TX_POINTER 0x16
|
|
#define RX_POINTER 0x17
|
|
/* Total msg numver for type A */
|
|
#define MSG_TYPE_A_NUM 0x18
|
|
|
|
/* RPMSG Command (TYPE C)*/
|
|
#define TX_PERIOD_DONE 0x0
|
|
#define RX_PERIOD_DONE 0x1
|
|
/* Total msg numver for type C */
|
|
#define MSG_TYPE_C_NUM 0x2
|
|
|
|
#define MSG_MAX_NUM (MSG_TYPE_A_NUM + MSG_TYPE_C_NUM)
|
|
|
|
#define MSG_TYPE_A 0x0
|
|
#define MSG_TYPE_B 0x1
|
|
#define MSG_TYPE_C 0x2
|
|
|
|
#define RESP_NONE 0x0
|
|
#define RESP_NOT_ALLOWED 0x1
|
|
#define RESP_SUCCESS 0x2
|
|
#define RESP_FAILED 0x3
|
|
|
|
#define RPMSG_S16_LE 0x0
|
|
#define RPMSG_S24_LE 0x1
|
|
#define RPMSG_S32_LE 0x2
|
|
#define RPMSG_DSD_U16_LE 49 /* SNDRV_PCM_FORMAT_DSD_U16_LE */
|
|
#define RPMSG_DSD_U24_LE 0x4
|
|
#define RPMSG_DSD_U32_LE 50 /* SNDRV_PCM_FORMAT_DSD_U32_LE */
|
|
|
|
#define RPMSG_CH_LEFT 0x0
|
|
#define RPMSG_CH_RIGHT 0x1
|
|
#define RPMSG_CH_STEREO 0x2
|
|
|
|
#define WORK_MAX_NUM 0x30
|
|
|
|
/* Category define */
|
|
#define IMX_RMPSG_LIFECYCLE 1
|
|
#define IMX_RPMSG_PMIC 2
|
|
#define IMX_RPMSG_AUDIO 3
|
|
#define IMX_RPMSG_KEY 4
|
|
#define IMX_RPMSG_GPIO 5
|
|
#define IMX_RPMSG_RTC 6
|
|
#define IMX_RPMSG_SENSOR 7
|
|
|
|
/* rpmsg version */
|
|
#define IMX_RMPSG_MAJOR 1
|
|
#define IMX_RMPSG_MINOR 0
|
|
|
|
#define TX SNDRV_PCM_STREAM_PLAYBACK
|
|
#define RX SNDRV_PCM_STREAM_CAPTURE
|
|
|
|
/**
|
|
* struct rpmsg_head: rpmsg header structure
|
|
*
|
|
* @cate: category
|
|
* @major: major version
|
|
* @minor: minor version
|
|
* @type: message type (A/B/C)
|
|
* @cmd: message command
|
|
* @reserved: reserved space
|
|
*/
|
|
struct rpmsg_head {
|
|
u8 cate;
|
|
u8 major;
|
|
u8 minor;
|
|
u8 type;
|
|
u8 cmd;
|
|
u8 reserved[5];
|
|
} __packed;
|
|
|
|
/**
|
|
* struct param_s: sent rpmsg parameter
|
|
*
|
|
* @audioindex: audio instance index
|
|
* @format: audio format
|
|
* @channels: audio channel number
|
|
* @rate: sample rate
|
|
* @buffer_addr: dma buffer physical address or register for SET_CODEC_VALUE
|
|
* @buffer_size: dma buffer size or register value for SET_CODEC_VALUE
|
|
* @period_size: period size
|
|
* @buffer_tail: current period index
|
|
*/
|
|
struct param_s {
|
|
unsigned char audioindex;
|
|
unsigned char format;
|
|
unsigned char channels;
|
|
unsigned int rate;
|
|
unsigned int buffer_addr;
|
|
unsigned int buffer_size;
|
|
unsigned int period_size;
|
|
unsigned int buffer_tail;
|
|
} __packed;
|
|
|
|
/**
|
|
* struct param_s: send rpmsg parameter
|
|
*
|
|
* @audioindex: audio instance index
|
|
* @resp: response value
|
|
* @reserved1: reserved space
|
|
* @buffer_offset: the consumed offset of buffer
|
|
* @reg_addr: register addr of codec
|
|
* @reg_data: register value of codec
|
|
* @reserved2: reserved space
|
|
* @buffer_tail: current period index
|
|
*/
|
|
struct param_r {
|
|
unsigned char audioindex;
|
|
unsigned char resp;
|
|
unsigned char reserved1[1];
|
|
unsigned int buffer_offset;
|
|
unsigned int reg_addr;
|
|
unsigned int reg_data;
|
|
unsigned char reserved2[4];
|
|
unsigned int buffer_tail;
|
|
} __packed;
|
|
|
|
/* Struct of sent message */
|
|
struct rpmsg_s_msg {
|
|
struct rpmsg_head header;
|
|
struct param_s param;
|
|
};
|
|
|
|
/* Struct of received message */
|
|
struct rpmsg_r_msg {
|
|
struct rpmsg_head header;
|
|
struct param_r param;
|
|
};
|
|
|
|
/* Struct of rpmsg */
|
|
struct rpmsg_msg {
|
|
struct rpmsg_s_msg s_msg;
|
|
struct rpmsg_r_msg r_msg;
|
|
};
|
|
|
|
/* Struct of rpmsg for workqueue */
|
|
struct work_of_rpmsg {
|
|
struct rpmsg_info *info;
|
|
/* Sent msg for each work */
|
|
struct rpmsg_msg msg;
|
|
struct work_struct work;
|
|
};
|
|
|
|
/* Struct of timer */
|
|
struct stream_timer {
|
|
struct timer_list timer;
|
|
struct rpmsg_info *info;
|
|
struct snd_pcm_substream *substream;
|
|
};
|
|
|
|
typedef void (*dma_callback)(void *arg);
|
|
|
|
/**
|
|
* struct rpmsg_info: rpmsg audio information
|
|
*
|
|
* @rpdev: pointer of rpmsg_device
|
|
* @dev: pointer for imx_pcm_rpmsg device
|
|
* @cmd_complete: command is finished
|
|
* @pm_qos_req: request of pm qos
|
|
* @r_msg: received rpmsg
|
|
* @msg: array of rpmsg
|
|
* @notify: notification msg (type C) for TX & RX
|
|
* @notify_updated: notification flag for TX & RX
|
|
* @rpmsg_wq: rpmsg workqueue
|
|
* @work_list: array of work list for workqueue
|
|
* @work_write_index: write index of work list
|
|
* @work_read_index: read index of work list
|
|
* @msg_drop_count: counter of dropped msg for TX & RX
|
|
* @num_period: period number for TX & RX
|
|
* @callback_param: parameter for period elapse callback for TX & RX
|
|
* @callback: period elapse callback for TX & RX
|
|
* @send_message: function pointer for send message
|
|
* @lock: spin lock for TX & RX
|
|
* @wq_lock: lock for work queue
|
|
* @msg_lock: lock for send message
|
|
* @stream_timer: timer for tigger workqueue
|
|
*/
|
|
struct rpmsg_info {
|
|
struct rpmsg_device *rpdev;
|
|
struct device *dev;
|
|
struct completion cmd_complete;
|
|
struct pm_qos_request pm_qos_req;
|
|
|
|
/* Received msg (global) */
|
|
struct rpmsg_r_msg r_msg;
|
|
struct rpmsg_msg msg[MSG_MAX_NUM];
|
|
/* period done */
|
|
struct rpmsg_msg notify[2];
|
|
bool notify_updated[2];
|
|
|
|
struct workqueue_struct *rpmsg_wq;
|
|
struct work_of_rpmsg work_list[WORK_MAX_NUM];
|
|
int work_write_index;
|
|
int work_read_index;
|
|
int msg_drop_count[2];
|
|
int num_period[2];
|
|
void *callback_param[2];
|
|
dma_callback callback[2];
|
|
int (*send_message)(struct rpmsg_msg *msg, struct rpmsg_info *info);
|
|
spinlock_t lock[2]; /* spin lock for resource protection */
|
|
spinlock_t wq_lock; /* spin lock for resource protection */
|
|
struct mutex msg_lock; /* mutex for resource protection */
|
|
struct stream_timer stream_timer[2];
|
|
};
|
|
|
|
#define IMX_PCM_DRV_NAME "imx_pcm_rpmsg"
|
|
|
|
#endif /* IMX_PCM_RPMSG_H */
|