| /* Code to read/track the status of the WWAN LEDs of attached modems |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA |
| */ |
| /* Depending on the board this is running on, it might be possible |
| * for the controller to read the status of the WWAN LED output lines of |
| * the cellular modem. If the board supports this, it sets the |
| * PIN_WWAN1 and/or PIN_WWAN2 defines in its board.h file. |
| */ |
| #include "board.h" |
| #include "wwan_led.h" |
| |
| #ifdef PIN_WWAN1 |
| static const Pin pin_wwan1 = PIN_WWAN1; |
| |
| static void wwan1_irqhandler(const Pin *pPin) |
| { |
| int active = wwan_led_active(0); |
| |
| TRACE_INFO("0: WWAN LED %u\r\n", active); |
| |
| /* TODO: notify host via USB */ |
| } |
| #endif |
| |
| #ifdef PIN_WWAN2 |
| static const Pin pin_wwan2 = PIN_WWAN2; |
| |
| static void wwan2_irqhandler(const Pin *pPin) |
| { |
| int active = wwan_led_active(1); |
| TRACE_INFO("1: WWAN LED %u\r\n", active); |
| |
| /* TODO: notify host via USB */ |
| } |
| #endif |
| |
| /* determine if a tiven WWAN led is currently active or not */ |
| int wwan_led_active(int wwan) |
| { |
| const Pin *pin; |
| int active; |
| |
| switch (wwan) { |
| #ifdef PIN_WWAN1 |
| case 0: |
| pin = &pin_wwan1; |
| break; |
| #endif |
| #ifdef PIN_WWAN2 |
| case 1: |
| pin = &pin_wwan2; |
| break; |
| #endif |
| default: |
| return -1; |
| } |
| |
| active = PIO_Get(pin) ? 0 : 1; |
| return active; |
| } |
| |
| int wwan_led_init(void) |
| { |
| int num_leds = 0; |
| |
| #ifdef PIN_WWAN1 |
| PIO_Configure(&pin_wwan1, 1); |
| PIO_ConfigureIt(&pin_wwan1, wwan1_irqhandler); |
| PIO_EnableIt(&pin_wwan1); |
| num_leds++; |
| #endif |
| |
| #ifdef PIN_WWAN2 |
| PIO_Configure(&pin_wwan2, 1); |
| PIO_ConfigureIt(&pin_wwan2, wwan2_irqhandler); |
| PIO_EnableIt(&pin_wwan2); |
| num_leds++; |
| #endif |
| return num_leds; |
| } |