mirror of https://gerrit.osmocom.org/simtrace2
94 lines
2.2 KiB
C
94 lines
2.2 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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
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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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