82 lines
2.6 KiB
C
82 lines
2.6 KiB
C
|
/*
|
||
|
|
* dbmdx-uart-common.h -- DBMDX UART interface common functions
|
||
|
|
*
|
||
|
|
* Copyright (C) 2014 DSP Group
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License version 2 as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _DBMDX_UART_COMMON_H
|
||
|
|
#define _DBMDX_UART_COMMON_H
|
||
|
|
|
||
|
|
#if IS_ENABLED(CONFIG_PM_WAKELOCKS)
|
||
|
|
#include <linux/pm_wakeup.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define RETRY_COUNT 5
|
||
|
|
|
||
|
|
struct dbmdx_uart_data {
|
||
|
|
const char *uart_dev;
|
||
|
|
unsigned int software_flow_control;
|
||
|
|
u32 read_chunk_size;
|
||
|
|
u32 write_chunk_size;
|
||
|
|
u8 read_buf[MAX_REQ_SIZE];
|
||
|
|
};
|
||
|
|
|
||
|
|
struct dbmdx_uart_private {
|
||
|
|
struct platform_device *pdev;
|
||
|
|
struct dbmdx_uart_data *pdata;
|
||
|
|
struct device *dev;
|
||
|
|
struct chip_interface chip;
|
||
|
|
#if IS_ENABLED(CONFIG_PM_WAKELOCKS)
|
||
|
|
struct wakeup_source *ps_nosuspend_wl;
|
||
|
|
#endif
|
||
|
|
struct tty_struct *tty;
|
||
|
|
struct file *fp;
|
||
|
|
struct tty_ldisc *ldisc;
|
||
|
|
unsigned int boot_baud_rate;
|
||
|
|
int boot_stop_bits;
|
||
|
|
int boot_parity;
|
||
|
|
unsigned int normal_baud_rate;
|
||
|
|
int normal_stop_bits;
|
||
|
|
int normal_parity;
|
||
|
|
unsigned int boot_lock_buffer_size;
|
||
|
|
int uart_open;
|
||
|
|
atomic_t stop_uart_probing;
|
||
|
|
struct task_struct *uart_probe_thread;
|
||
|
|
struct completion uart_done;
|
||
|
|
u16 post_pll_div;
|
||
|
|
u32 interface_enabled;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
void uart_flush_rx_fifo(struct dbmdx_uart_private *p);
|
||
|
|
int uart_configure_tty(struct dbmdx_uart_private *p, u32 bps, int stop,
|
||
|
|
int parity, int flow);
|
||
|
|
ssize_t uart_read_data(struct dbmdx_private *p, void *buf, size_t len);
|
||
|
|
ssize_t uart_write_data_no_sync(struct dbmdx_private *p, const void *buf,
|
||
|
|
size_t len);
|
||
|
|
ssize_t uart_write_data(struct dbmdx_private *p, const void *buf,
|
||
|
|
size_t len);
|
||
|
|
ssize_t send_uart_cmd_vqe(struct dbmdx_private *p, u32 command,
|
||
|
|
u16 *response);
|
||
|
|
ssize_t send_uart_cmd_va(struct dbmdx_private *p, u32 command,
|
||
|
|
u16 *response);
|
||
|
|
int send_uart_cmd_boot(struct dbmdx_private *p, u32 command);
|
||
|
|
int uart_verify_boot_checksum(struct dbmdx_private *p,
|
||
|
|
const void *checksum, size_t chksum_len);
|
||
|
|
int uart_verify_chip_id(struct dbmdx_private *p);
|
||
|
|
int uart_wait_for_ok(struct dbmdx_private *p);
|
||
|
|
int uart_wait_till_alive(struct dbmdx_private *p);
|
||
|
|
int uart_set_speed_host_only(struct dbmdx_private *p, int index);
|
||
|
|
int uart_set_speed(struct dbmdx_private *p, int index);
|
||
|
|
int uart_common_probe(struct platform_device *pdev, const char threadnamefmt[]);
|
||
|
|
int uart_common_remove(struct platform_device *pdev);
|
||
|
|
void uart_set_private_callbacks(struct dbmdx_uart_private *p);
|
||
|
|
void uart_interface_resume(struct dbmdx_uart_private *uart_p);
|
||
|
|
void uart_interface_suspend(struct dbmdx_uart_private *uart_p);
|
||
|
|
|
||
|
|
#endif
|