mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
512 lines
28 KiB
512 lines
28 KiB
/* 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 */
|
|
|