ac0278bb4c
This snapshot is taken as of msm-4.19 'commit <670a322c>
("bluetooth: Add bluetooth slimbus slave drivers").
Change-Id: Ide1aef9a42cbee862fbd4afc016a89b37269f95f
Signed-off-by: himta ram <hram@codeaurora.org>
170 lines
4.1 KiB
C
170 lines
4.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Copyright (c) 2016-2019, The Linux Foundation. All rights reserved.
|
|
*/
|
|
|
|
#ifndef BTFM_SLIM_H
|
|
#define BTFM_SLIM_H
|
|
#include <linux/slimbus/slimbus.h>
|
|
|
|
#define BTFMSLIM_DBG(fmt, arg...) pr_debug("%s: " fmt "\n", __func__, ## arg)
|
|
#define BTFMSLIM_INFO(fmt, arg...) pr_info("%s: " fmt "\n", __func__, ## arg)
|
|
#define BTFMSLIM_ERR(fmt, arg...) pr_err("%s: " fmt "\n", __func__, ## arg)
|
|
|
|
/* Vendor specific defines
|
|
* This should redefines in slimbus slave specific header
|
|
*/
|
|
#define SLIM_SLAVE_COMPATIBLE_STR "btfmslim_slave"
|
|
#define SLIM_SLAVE_REG_OFFSET 0x0000
|
|
#define SLIM_SLAVE_RXPORT NULL
|
|
#define SLIM_SLAVE_TXPORT NULL
|
|
#define SLIM_SLAVE_INIT NULL
|
|
#define SLIM_SLAVE_PORT_EN NULL
|
|
|
|
/* Misc defines */
|
|
#define SLIM_SLAVE_RW_MAX_TRIES 3
|
|
#define SLIM_SLAVE_PRESENT_TIMEOUT 100
|
|
|
|
#define PGD 1
|
|
#define IFD 0
|
|
|
|
|
|
/* Codec driver defines */
|
|
enum {
|
|
BTFM_FM_SLIM_TX = 0,
|
|
BTFM_BT_SCO_SLIM_TX,
|
|
BTFM_BT_SCO_A2DP_SLIM_RX,
|
|
BTFM_BT_SPLIT_A2DP_SLIM_RX,
|
|
BTFM_SLIM_NUM_CODEC_DAIS
|
|
};
|
|
|
|
/* Slimbus Port defines - This should be redefined in specific device file */
|
|
#define BTFM_SLIM_PGD_PORT_LAST 0xFF
|
|
|
|
struct btfmslim_ch {
|
|
int id;
|
|
char *name;
|
|
uint32_t port_hdl; /* slimbus port handler */
|
|
uint16_t port; /* slimbus port number */
|
|
|
|
uint8_t ch; /* slimbus channel number */
|
|
uint16_t ch_hdl; /* slimbus channel handler */
|
|
uint16_t grph; /* slimbus group channel handler */
|
|
};
|
|
|
|
struct btfmslim {
|
|
struct device *dev;
|
|
struct slim_device *slim_pgd;
|
|
struct slim_device slim_ifd;
|
|
struct mutex io_lock;
|
|
struct mutex xfer_lock;
|
|
uint8_t enabled;
|
|
|
|
uint32_t num_rx_port;
|
|
uint32_t num_tx_port;
|
|
uint32_t sample_rate;
|
|
|
|
struct btfmslim_ch *rx_chs;
|
|
struct btfmslim_ch *tx_chs;
|
|
|
|
int (*vendor_init)(struct btfmslim *btfmslim);
|
|
int (*vendor_port_en)(struct btfmslim *btfmslim, uint8_t port_num,
|
|
uint8_t rxport, uint8_t enable);
|
|
};
|
|
|
|
extern int btfm_feedback_ch_setting;
|
|
|
|
/**
|
|
* btfm_slim_hw_init: Initialize slimbus slave device
|
|
* Returns:
|
|
* 0: Success
|
|
* else: Fail
|
|
*/
|
|
int btfm_slim_hw_init(struct btfmslim *btfmslim);
|
|
|
|
/**
|
|
* btfm_slim_hw_deinit: Deinitialize slimbus slave device
|
|
* Returns:
|
|
* 0: Success
|
|
* else: Fail
|
|
*/
|
|
int btfm_slim_hw_deinit(struct btfmslim *btfmslim);
|
|
|
|
/**
|
|
* btfm_slim_write: write value to pgd or ifd device
|
|
* @btfmslim: slimbus slave device data pointer.
|
|
* @reg: slimbus slave register address
|
|
* @bytes: length of data
|
|
* @src: data pointer to write
|
|
* @pgd: selection for device: either PGD or IFD
|
|
* Returns:
|
|
* -EINVAL
|
|
* -ETIMEDOUT
|
|
* -ENOMEM
|
|
*/
|
|
int btfm_slim_write(struct btfmslim *btfmslim,
|
|
uint16_t reg, int bytes, void *src, uint8_t pgd);
|
|
|
|
|
|
|
|
/**
|
|
* btfm_slim_read: read value from pgd or ifd device
|
|
* @btfmslim: slimbus slave device data pointer.
|
|
* @reg: slimbus slave register address
|
|
* @bytes: length of data
|
|
* @dest: data pointer to read
|
|
* @pgd: selection for device: either PGD or IFD
|
|
* Returns:
|
|
* -EINVAL
|
|
* -ETIMEDOUT
|
|
* -ENOMEM
|
|
*/
|
|
int btfm_slim_read(struct btfmslim *btfmslim,
|
|
uint16_t reg, int bytes, void *dest, uint8_t pgd);
|
|
|
|
|
|
/**
|
|
* btfm_slim_enable_ch: enable channel for slimbus slave port
|
|
* @btfmslim: slimbus slave device data pointer.
|
|
* @ch: slimbus slave channel pointer
|
|
* @rxport: rxport or txport
|
|
* Returns:
|
|
* -EINVAL
|
|
* -ETIMEDOUT
|
|
* -ENOMEM
|
|
*/
|
|
int btfm_slim_enable_ch(struct btfmslim *btfmslim,
|
|
struct btfmslim_ch *ch, uint8_t rxport, uint32_t rates,
|
|
uint8_t grp, uint8_t nchan);
|
|
|
|
/**
|
|
* btfm_slim_disable_ch: disable channel for slimbus slave port
|
|
* @btfmslim: slimbus slave device data pointer.
|
|
* @ch: slimbus slave channel pointer
|
|
* @rxport: rxport or txport
|
|
* Returns:
|
|
* -EINVAL
|
|
* -ETIMEDOUT
|
|
* -ENOMEM
|
|
*/
|
|
int btfm_slim_disable_ch(struct btfmslim *btfmslim,
|
|
struct btfmslim_ch *ch, uint8_t rxport, uint8_t grp, uint8_t nchan);
|
|
|
|
/**
|
|
* btfm_slim_register_codec: Register codec driver in slimbus device node
|
|
* @dev: device node
|
|
* Returns:
|
|
* -ENOMEM
|
|
* 0
|
|
*/
|
|
int btfm_slim_register_codec(struct device *dev);
|
|
|
|
/**
|
|
* btfm_slim_unregister_codec: Unregister codec driver in slimbus device node
|
|
* @dev: device node
|
|
* Returns:
|
|
* VOID
|
|
*/
|
|
void btfm_slim_unregister_codec(struct device *dev);
|
|
#endif /* BTFM_SLIM_H */
|