4a2649332e
This change adds below support for BT advance audio * Add support for codec type mixer control * Update slim driver to read master id, channel number. * Update slim driver to support HW EP. * Add support for transport switch based on the request CRs-Fixed: 3298745 Change-Id: Ica349cb6f3615f4dc51bbc3070c90d43eeba1cdd
85 lines
2.3 KiB
C
85 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
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*/
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#ifndef __LINUX_BTFM_CODEC_H
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#define __LINUX_BTFM_CODEC_H
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#include <linux/kernel.h>
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#include <linux/bitops.h>
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#include <linux/printk.h>
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#include <linux/cdev.h>
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#include <linux/skbuff.h>
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#include "btfm_codec_hw_interface.h"
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#define BTFMCODEC_DBG(fmt, arg...) pr_err("%s: " fmt "\n", __func__, ## arg)
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#define BTFMCODEC_INFO(fmt, arg...) pr_err("%s: " fmt "\n", __func__, ## arg)
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#define BTFMCODEC_ERR(fmt, arg...) pr_err("%s: " fmt "\n", __func__, ## arg)
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#define BTFMCODEC_WARN(fmt, arg...) pr_warn("%s: " fmt "\n", __func__, ## arg)
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#define DEVICE_NAME_MAX_LEN 64
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typedef enum btfmcodec_states {
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/*Default state of kernel proxy driver */
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IDLE = 0,
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/* Waiting for BT bearer indication after configuring HW ports */
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BT_Connecting = 1,
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/* When BT is active transport */
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BT_Connected = 2,
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/* Waiting for BTADV Audio bearer switch indications */
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BTADV_AUDIO_Connecting = 3,
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/* When BTADV audio is active transport */
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BTADV_AUDIO_Connected = 4
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} btfmcodec_state;
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enum btfm_pkt_type {
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BTM_PKT_TYPE_PREPARE_REQ = 0,
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BTM_PKT_TYPE_MASTER_CONFIG_RSP,
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BTM_PKT_TYPE_MASTER_SHUTDOWN_RSP,
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BTM_PKT_TYPE_BEARER_SWITCH_IND,
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BTM_PKT_TYPE_HWEP_SHUTDOWN,
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BTM_PKT_TYPE_HWEP_CONFIG,
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BTM_PKT_TYPE_MAX,
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};
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char *coverttostring(enum btfmcodec_states);
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struct btfmcodec_state_machine {
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struct mutex state_machine_lock;
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btfmcodec_state prev_state;
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btfmcodec_state current_state;
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btfmcodec_state next_state;
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};
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struct btfmcodec_char_device {
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struct cdev cdev;
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refcount_t active_clients;
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struct mutex lock;
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int reuse_minor;
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char dev_name[DEVICE_NAME_MAX_LEN];
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struct workqueue_struct *workqueue;
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struct sk_buff_head rxq;
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struct work_struct rx_work;
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struct work_struct wq_hwep_shutdown;
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struct work_struct wq_prepare_bearer;
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struct work_struct wq_hwep_configure;
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wait_queue_head_t readq;
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spinlock_t tx_queue_lock;
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struct sk_buff_head txq;
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wait_queue_head_t rsp_wait_q[BTM_PKT_TYPE_MAX];
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uint8_t status[BTM_PKT_TYPE_MAX];
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void *btfmcodec;
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};
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struct btfmcodec_data {
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struct device dev;
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struct btfmcodec_state_machine states;
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struct btfmcodec_char_device *btfmcodec_dev;
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struct hwep_data *hwep_info;
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struct list_head config_head;
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};
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struct btfmcodec_data *btfm_get_btfmcodec(void);
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#endif /*__LINUX_BTFM_CODEC_H */
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