| #include <stdint.h> |
| #include <string.h> |
| #include <assert.h> |
| |
| #include <osmocom/core/timer.h> |
| |
| #include "board.h" |
| #include "utils.h" |
| #include "led.h" |
| |
| #ifdef PINS_LEDS |
| static const Pin pinsLeds[] = { PINS_LEDS } ; |
| |
| static void led_set(enum led led, int on) |
| { |
| ASSERT(led < PIO_LISTSIZE(pinsLeds)); |
| |
| if (on) |
| PIO_Set(&pinsLeds[led]); |
| else |
| PIO_Clear(&pinsLeds[led]); |
| } |
| |
| /* LED blinking code */ |
| |
| /* a single state in a sequence of blinking */ |
| struct blink_state { |
| /* duration of the state in ms */ |
| uint16_t duration; |
| /* brightness of LED during the state */ |
| uint8_t on; |
| } __attribute__((packed)); |
| |
| static const struct blink_state bs_off[] = { |
| { 0, 0 } |
| }; |
| |
| static const struct blink_state bs_on[] = { |
| { 0, 1 } |
| }; |
| |
| static const struct blink_state bs_3on_5off[] = { |
| { 300, 1 }, { 500, 0 } |
| }; |
| |
| static const struct blink_state bs_3on_30off[] = { |
| { 300, 1 }, { 3000, 0 } |
| }; |
| |
| static const struct blink_state bs_3on_1off_3on_30off[] = { |
| { 300, 1 }, { 100, 0 }, { 300, 1 }, { 3000, 0 } |
| }; |
| |
| static const struct blink_state bs_3on_1off_3on_1off_3on_30off[] = { |
| { 300, 1 }, { 100, 0 }, { 300, 1 }, { 100, 0 }, { 300, 1 }, { 3000, 0 } |
| }; |
| static const struct blink_state bs_2on_off[] = { |
| { 200, 1 }, { 0, 0 }, |
| }; |
| static const struct blink_state bs_200on_off[] = { |
| { 20000, 1 }, { 0, 0 }, |
| }; |
| static const struct blink_state bs_600on_off[] = { |
| { 60000, 1 }, { 0, 0 }, |
| }; |
| |
| |
| /* a blink pattern is an array of blink_states */ |
| struct blink_pattern { |
| const struct blink_state *states; |
| uint16_t size; |
| }; |
| |
| /* compiled-in default blinking patterns */ |
| static const struct blink_pattern patterns[] = { |
| [BLINK_ALWAYS_OFF] = { |
| .states = bs_off, |
| .size = ARRAY_SIZE(bs_off), |
| }, |
| [BLINK_ALWAYS_ON] = { |
| .states = bs_on, |
| .size = ARRAY_SIZE(bs_on), |
| }, |
| [BLINK_3O_5F] = { |
| .states = bs_3on_5off, |
| .size = ARRAY_SIZE(bs_3on_5off), |
| }, |
| [BLINK_3O_30F] = { |
| .states = bs_3on_30off, |
| .size = ARRAY_SIZE(bs_3on_30off), |
| }, |
| [BLINK_3O_1F_3O_30F] = { |
| .states = bs_3on_1off_3on_30off, |
| .size = ARRAY_SIZE(bs_3on_1off_3on_30off), |
| }, |
| [BLINK_3O_1F_3O_1F_3O_30F] = { |
| .states = bs_3on_1off_3on_1off_3on_30off, |
| .size = ARRAY_SIZE(bs_3on_1off_3on_1off_3on_30off), |
| }, |
| [BLINK_2O_F] = { |
| .states = bs_2on_off, |
| .size = ARRAY_SIZE(bs_2on_off), |
| }, |
| [BLINK_200O_F] = { |
| .states = bs_200on_off, |
| .size = ARRAY_SIZE(bs_200on_off), |
| }, |
| [BLINK_600O_F] = { |
| .states = bs_600on_off, |
| .size = ARRAY_SIZE(bs_600on_off), |
| }, |
| }; |
| |
| struct led_state { |
| /* which led are we handling */ |
| enum led led; |
| |
| /* timer */ |
| struct osmo_timer_list timer; |
| |
| /* pointer and size of blink array */ |
| const struct blink_pattern *pattern; |
| |
| unsigned int cur_state; |
| unsigned int illuminated; |
| |
| /* static allocated space for custom blinking pattern */ |
| struct blink_pattern pattern_cust; |
| struct blink_state blink_cust[10]; |
| }; |
| |
| static unsigned int cur_state_inc(struct led_state *ls) |
| { |
| ls->cur_state = (ls->cur_state + 1) % ls->pattern->size; |
| return ls->cur_state; |
| } |
| |
| static const struct blink_state * |
| next_blink_state(struct led_state *ls) |
| { |
| return &ls->pattern->states[cur_state_inc(ls)]; |
| } |
| |
| /* apply the next state to the LED */ |
| static void apply_blinkstate(struct led_state *ls, |
| const struct blink_state *bs) |
| { |
| led_set(ls->led, bs->on); |
| ls->illuminated = bs->on; |
| |
| /* re-schedule the timer */ |
| if (bs->duration) { |
| uint32_t us = bs->duration * 1000; |
| osmo_timer_schedule(&ls->timer, us / 1000000, us % 1000000); |
| } |
| } |
| |
| static void blink_tmr_cb(void *data) |
| { |
| struct led_state *ls = data; |
| const struct blink_state *next_bs = next_blink_state(ls); |
| |
| /* apply the next state to the LED */ |
| apply_blinkstate(ls, next_bs); |
| } |
| |
| static struct led_state led_state[] = { |
| [LED_RED] = { |
| .led = LED_RED, |
| .timer.cb = blink_tmr_cb, |
| .timer.data = &led_state[LED_RED], |
| }, |
| [LED_GREEN] = { |
| .led = LED_GREEN, |
| .timer.cb = blink_tmr_cb, |
| .timer.data = &led_state[LED_GREEN], |
| }, |
| }; |
| #endif /* PINS_LEDS */ |
| |
| void led_blink(enum led led, enum led_pattern blink) |
| { |
| #ifdef PINS_LEDS |
| struct led_state *ls; |
| |
| if (led >= ARRAY_SIZE(led_state)) |
| return; |
| ls = &led_state[led]; |
| |
| /* stop previous blinking, if any */ |
| osmo_timer_del(&ls->timer); |
| led_set(led, 0); |
| ls->illuminated = 0; |
| ls->pattern = NULL; |
| ls->cur_state = 0; |
| |
| switch (blink) { |
| case BLINK_CUSTOM: |
| ls->pattern = &ls->pattern_cust; |
| break; |
| default: |
| if (blink >= ARRAY_SIZE(patterns)) |
| return; |
| ls->pattern = &patterns[blink]; |
| break; |
| } |
| |
| if (ls->pattern && ls->pattern->size > 0) |
| apply_blinkstate(ls, &ls->pattern->states[0]); |
| #endif |
| } |
| |
| enum led_pattern led_get(enum led led) |
| { |
| #ifdef PINS_LEDS |
| struct led_state *ls; |
| unsigned int i; |
| |
| if (led >= ARRAY_SIZE(led_state)) |
| return -1; |
| ls = &led_state[led]; |
| |
| if (ls->pattern == &ls->pattern_cust) |
| return BLINK_CUSTOM; |
| |
| for (i = 0; i < ARRAY_SIZE(patterns); i++) { |
| if (ls->pattern == &patterns[i]) |
| return i; |
| } |
| #endif |
| /* default case, shouldn't be reached */ |
| return -1; |
| } |
| |
| void led_start(void) |
| { |
| led_set(LED_GREEN, led_state[LED_GREEN].illuminated); |
| led_set(LED_RED, led_state[LED_RED].illuminated); |
| } |
| |
| void led_stop(void) |
| { |
| led_set(LED_GREEN, 0); |
| led_set(LED_RED, 0); |
| } |
| |
| void led_init(void) |
| { |
| #ifdef PINS_LEDS |
| PIO_Configure(pinsLeds, PIO_LISTSIZE(pinsLeds)); |
| led_set(LED_GREEN, 0); |
| led_set(LED_RED, 0); |
| #endif |
| } |
| |
| void led_fini(void) |
| { |
| #ifdef PINS_LEDS |
| /* we don't actually need to do this, but just in case... */ |
| osmo_timer_del(&led_state[LED_RED].timer); |
| osmo_timer_del(&led_state[LED_GREEN].timer); |
| led_set(LED_GREEN, 0); |
| led_set(LED_RED, 0); |
| #endif |
| } |