65 lines
1.3 KiB
C
65 lines
1.3 KiB
C
/*
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* e1.h
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*
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* Copyright (C) 2019-2020 Sylvain Munaut <tnt@246tNt.com>
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#pragma once
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/* control */
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void e1_init(int port, uint16_t rx_cr, uint16_t tx_cr);
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void e1_start(int port);
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void e1_stop(int port);
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void e1_poll(int port);
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void e1_debug_print(int port, bool data);
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void e1_rx_config(int port, uint16_t cr);
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void e1_tx_config(int port, uint16_t cr);
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/* data flow */
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unsigned int e1_rx_need_data(int port, unsigned int usb_addr, unsigned int max_len, unsigned int *pos);
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unsigned int e1_tx_feed_data(int port, unsigned int usb_addr, unsigned int len);
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unsigned int e1_rx_level(int port);
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unsigned int e1_tx_level(int port);
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/* error reporting */
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#define E1_ERR_F_ALIGN_ERR 0x01
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#define E1_ERR_F_LOS 0x02
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#define E1_ERR_F_RAI 0x04
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struct e1_error_count {
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uint16_t crc;
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uint16_t align;
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uint16_t ovfl;
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uint16_t unfl;
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uint8_t flags;
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};
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const struct e1_error_count *e1_get_error_count(int port);
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/* external function provided by the platform; used by E1 driver to control LEDs */
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enum e1_platform_led {
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E1P_LED_GREEN = 0,
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E1P_LED_YELLOW = 1,
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};
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enum e1_platform_led_state {
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E1P_LED_ST_OFF = 0,
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E1P_LED_ST_ON = 1,
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E1P_LED_ST_BLINK = 2,
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E1P_LED_ST_BLINK_FAST = 3
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};
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extern void e1_platform_led_set(int port, enum e1_platform_led led,
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enum e1_platform_led_state state);
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