| /* 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 */ |
