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