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https://gitea.osmocom.org/sim-card/simtrace2.git
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81 lines
1.5 KiB
C
81 lines
1.5 KiB
C
/* Code to read/track the status of the WWAN LEDs of attached modems
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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(1);
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TRACE_INFO("WWAN1 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(2);
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TRACE_INFO("WWAN2 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 tiven 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 1:
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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 2:
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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_wwan1) ? 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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