c685521b64
Added support for 44.1/48/88.1/96KHz sample rates for Tx channel to use for feedback. Set data format to LPCM only for SCO Tx use case. Audio hal will provide the information of feedback channel before opening the slimbus port. CRs-Fixed: 2205755 Change-Id: I122f1bf729de5f0f83607778d5dee4380baf94fc Signed-off-by: Satish Kodishala <skodisha@codeaurora.org>
169 lines
4.1 KiB
C
169 lines
4.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2016-2019, The Linux Foundation. All rights reserved.
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*/
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#ifndef BTFM_SLIM_H
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#define BTFM_SLIM_H
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#include <linux/slimbus/slimbus.h>
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#define BTFMSLIM_DBG(fmt, arg...) pr_debug("%s: " fmt "\n", __func__, ## arg)
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#define BTFMSLIM_INFO(fmt, arg...) pr_info("%s: " fmt "\n", __func__, ## arg)
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#define BTFMSLIM_ERR(fmt, arg...) pr_err("%s: " fmt "\n", __func__, ## arg)
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/* Vendor specific defines
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* This should redefines in slimbus slave specific header
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*/
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#define SLIM_SLAVE_COMPATIBLE_STR "btfmslim_slave"
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#define SLIM_SLAVE_REG_OFFSET 0x0000
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#define SLIM_SLAVE_RXPORT NULL
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#define SLIM_SLAVE_TXPORT NULL
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#define SLIM_SLAVE_INIT NULL
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#define SLIM_SLAVE_PORT_EN NULL
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/* Misc defines */
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#define SLIM_SLAVE_RW_MAX_TRIES 3
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#define SLIM_SLAVE_PRESENT_TIMEOUT 100
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#define PGD 1
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#define IFD 0
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/* Codec driver defines */
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enum {
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BTFM_FM_SLIM_TX = 0,
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BTFM_BT_SCO_SLIM_TX,
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BTFM_BT_SCO_A2DP_SLIM_RX,
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BTFM_BT_SPLIT_A2DP_SLIM_RX,
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BTFM_SLIM_NUM_CODEC_DAIS
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};
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/* Slimbus Port defines - This should be redefined in specific device file */
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#define BTFM_SLIM_PGD_PORT_LAST 0xFF
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struct btfmslim_ch {
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int id;
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char *name;
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uint32_t port_hdl; /* slimbus port handler */
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uint16_t port; /* slimbus port number */
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uint8_t ch; /* slimbus channel number */
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uint16_t ch_hdl; /* slimbus channel handler */
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uint16_t grph; /* slimbus group channel handler */
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};
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struct btfmslim {
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struct device *dev;
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struct slim_device *slim_pgd;
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struct slim_device slim_ifd;
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struct mutex io_lock;
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struct mutex xfer_lock;
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uint8_t enabled;
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uint32_t num_rx_port;
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uint32_t num_tx_port;
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uint32_t sample_rate;
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struct btfmslim_ch *rx_chs;
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struct btfmslim_ch *tx_chs;
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int (*vendor_init)(struct btfmslim *btfmslim);
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int (*vendor_port_en)(struct btfmslim *btfmslim, uint8_t port_num,
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uint8_t rxport, uint8_t enable);
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};
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extern int btfm_feedback_ch_setting;
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/**
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* btfm_slim_hw_init: Initialize slimbus slave device
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* Returns:
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* 0: Success
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* else: Fail
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*/
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int btfm_slim_hw_init(struct btfmslim *btfmslim);
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/**
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* btfm_slim_hw_deinit: Deinitialize slimbus slave device
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* Returns:
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* 0: Success
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* else: Fail
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*/
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int btfm_slim_hw_deinit(struct btfmslim *btfmslim);
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/**
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* btfm_slim_write: write value to pgd or ifd device
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* @btfmslim: slimbus slave device data pointer.
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* @reg: slimbus slave register address
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* @bytes: length of data
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* @src: data pointer to write
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* @pgd: selection for device: either PGD or IFD
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* Returns:
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* -EINVAL
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* -ETIMEDOUT
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* -ENOMEM
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*/
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int btfm_slim_write(struct btfmslim *btfmslim,
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uint16_t reg, int bytes, void *src, uint8_t pgd);
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/**
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* btfm_slim_read: read value from pgd or ifd device
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* @btfmslim: slimbus slave device data pointer.
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* @reg: slimbus slave register address
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* @bytes: length of data
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* @dest: data pointer to read
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* @pgd: selection for device: either PGD or IFD
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* Returns:
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* -EINVAL
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* -ETIMEDOUT
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* -ENOMEM
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*/
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int btfm_slim_read(struct btfmslim *btfmslim,
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uint16_t reg, int bytes, void *dest, uint8_t pgd);
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/**
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* btfm_slim_enable_ch: enable channel for slimbus slave port
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* @btfmslim: slimbus slave device data pointer.
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* @ch: slimbus slave channel pointer
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* @rxport: rxport or txport
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* Returns:
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* -EINVAL
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* -ETIMEDOUT
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* -ENOMEM
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*/
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int btfm_slim_enable_ch(struct btfmslim *btfmslim,
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struct btfmslim_ch *ch, uint8_t rxport, uint32_t rates,
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uint8_t grp, uint8_t nchan);
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/**
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* btfm_slim_disable_ch: disable channel for slimbus slave port
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* @btfmslim: slimbus slave device data pointer.
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* @ch: slimbus slave channel pointer
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* @rxport: rxport or txport
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* Returns:
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* -EINVAL
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* -ETIMEDOUT
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* -ENOMEM
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*/
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int btfm_slim_disable_ch(struct btfmslim *btfmslim,
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struct btfmslim_ch *ch, uint8_t rxport, uint8_t grp, uint8_t nchan);
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/**
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* btfm_slim_register_codec: Register codec driver in slimbus device node
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* @dev: device node
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* Returns:
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* -ENOMEM
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* 0
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*/
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int btfm_slim_register_codec(struct device *dev);
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/**
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* btfm_slim_unregister_codec: Unregister codec driver in slimbus device node
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* @dev: device node
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* Returns:
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* VOID
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*/
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void btfm_slim_unregister_codec(struct device *dev);
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#endif /* BTFM_SLIM_H */
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