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https://gitea.osmocom.org/sim-card/simtrace2.git
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f721e69bc1
Remove the paragraph about writing to the Free Software Foundation's mailing address. The FSF has changed addresses in the past, and may do so again. In 2021 this is not useful, let's rather have a bit less boilerplate at the start of source files. Change-Id: Ie0a3b2273383adbb3303faffd6ff96be7f4cae99
90 lines
2.0 KiB
C
90 lines
2.0 KiB
C
/* Code to read/track the status of the WWAN LEDs of attached modems
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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/* Depending on the board this is running on, it might be possible
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* for the controller to read the status of the WWAN LED output lines of
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* the cellular modem. If the board supports this, it sets the
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* PIN_WWAN1 and/or PIN_WWAN2 defines in its board.h file.
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*/
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#include "board.h"
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#include "wwan_led.h"
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#ifdef PIN_WWAN1
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static const Pin pin_wwan1 = PIN_WWAN1;
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static void wwan1_irqhandler(const Pin *pPin)
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{
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int active = wwan_led_active(0);
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TRACE_INFO("0: WWAN LED %u\r\n", active);
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/* TODO: notify host via USB */
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}
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#endif
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#ifdef PIN_WWAN2
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static const Pin pin_wwan2 = PIN_WWAN2;
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static void wwan2_irqhandler(const Pin *pPin)
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{
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int active = wwan_led_active(1);
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TRACE_INFO("1: WWAN LED %u\r\n", active);
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/* TODO: notify host via USB */
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}
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#endif
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/* determine if a given WWAN led is currently active or not */
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int wwan_led_active(int wwan)
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{
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const Pin *pin;
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int active;
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switch (wwan) {
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#ifdef PIN_WWAN1
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case 0:
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pin = &pin_wwan1;
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break;
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#endif
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#ifdef PIN_WWAN2
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case 1:
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pin = &pin_wwan2;
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break;
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#endif
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default:
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return -1;
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}
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active = PIO_Get(pin) ? 0 : 1;
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return active;
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}
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int wwan_led_init(void)
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{
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int num_leds = 0;
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#ifdef PIN_WWAN1
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PIO_Configure(&pin_wwan1, 1);
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PIO_ConfigureIt(&pin_wwan1, wwan1_irqhandler);
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PIO_EnableIt(&pin_wwan1);
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num_leds++;
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#endif
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#ifdef PIN_WWAN2
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PIO_Configure(&pin_wwan2, 1);
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PIO_ConfigureIt(&pin_wwan2, wwan2_irqhandler);
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PIO_EnableIt(&pin_wwan2);
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num_leds++;
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#endif
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return num_leds;
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}
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