diff options
Diffstat (limited to 'app/gpio.c')
| -rw-r--r-- | app/gpio.c | 187 |
1 files changed, 109 insertions, 78 deletions
@@ -1,6 +1,6 @@ #include "project.h" #define DEBOUNCE 10 -#define DIAL_BLACKOUT 90 /* (10pps)*/ +#define DIAL_BLACKOUT 90 /* (10pps) */ static int hs_poll; int hook; @@ -12,108 +12,135 @@ static int pulse_count; static int fake_hook; -static void exti5_isr(void) +static void +exti5_isr (void) { -exti_reset_request(EXTI5); -dial_poll=DEBOUNCE; + exti_reset_request (EXTI5); + dial_poll = DEBOUNCE; } -static void exti7_isr(void) +static void +exti7_isr (void) { -exti_reset_request(EXTI7); -if (dial_pulse_blackout) return; -dial_pulse_blackout=DIAL_BLACKOUT; -pulse_count++; + exti_reset_request (EXTI7); + if (dial_pulse_blackout) + return; + dial_pulse_blackout = DIAL_BLACKOUT; + pulse_count++; } -static void exti14_isr(void) +static void +exti14_isr (void) { -exti_reset_request(EXTI14); -hs_poll=DEBOUNCE; + exti_reset_request (EXTI14); + hs_poll = DEBOUNCE; } -void exti9_5_isr(void) +void +exti9_5_isr (void) { -if (exti_get_flag_status(EXTI5)) exti5_isr(); -if (exti_get_flag_status(EXTI7)) exti7_isr(); + if (exti_get_flag_status (EXTI5)) + exti5_isr (); + if (exti_get_flag_status (EXTI7)) + exti7_isr (); } -void exti15_10_isr(void) + +void +exti15_10_isr (void) { -if (exti_get_flag_status(EXTI14)) exti14_isr(); + if (exti_get_flag_status (EXTI14)) + exti14_isr (); } -static void hs_tick(void) +static void +hs_tick (void) { -int h; + int h; -if (!hs_poll) return; -hs_poll--; + if (!hs_poll) + return; + hs_poll--; -if (hs_poll) return; + if (hs_poll) + return; -h=!gpio_get(GPIOC,GPIO14); + h = !gpio_get (GPIOC, GPIO14); -h^=fake_hook; + h ^= fake_hook; -if (hook==h) return; + if (hook == h) + return; -hook=h; + hook = h; -printf("Hook is now %d\r\n",hook); + printf ("Hook is now %d\r\n", hook); -if (!hook) { - if (ringing) { - ring_off(); - answer_call(); - } -} + if (!hook) + { + if (ringing) + { + ring_off (); + answer_call (); + } + } -if (hook) { - ring_off(); - terminate_call(); -} + if (hook) + { + ring_off (); + terminate_call (); + } } -static void dial_tick(void) { -int m; -if (dial_pulse_blackout) dial_pulse_blackout--; -if (!dial_poll) return; -dial_poll--; -if (dial_poll) return; +static void +dial_tick (void) +{ + int m; + + if (dial_pulse_blackout) + dial_pulse_blackout--; + if (!dial_poll) + return; + dial_poll--; + if (dial_poll) + return; -m=!!gpio_get(GPIOA,GPIO5); + m = ! !gpio_get (GPIOA, GPIO5); -if (m) return; -if (!pulse_count) return; + if (m) + return; + if (!pulse_count) + return; -dialstr_digit((pulse_count == 10) ? 0:pulse_count); -pulse_count=0; + dialstr_digit ((pulse_count == 10) ? 0 : pulse_count); + pulse_count = 0; } -void toggle_fake_hook(void) +void +toggle_fake_hook (void) { -fake_hook^=1; -hs_poll=DEBOUNCE; + fake_hook ^= 1; + hs_poll = DEBOUNCE; } -void gpio_tick(void) +void +gpio_tick (void) { -hs_tick(); -dial_tick(); + hs_tick (); + dial_tick (); } @@ -121,55 +148,59 @@ dial_tick(); -void gpio_init(void) +void +gpio_init (void) { - /*GSM module reset pin*/ + /*GSM module reset pin */ gpio_set_mode (GPIOA, GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, GPIO1); - gpio_set(GPIOA,GPIO1); + gpio_set (GPIOA, GPIO1); /* Dial mute */ - gpio_set_mode (GPIOA, GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, GPIO4); - gpio_set(GPIOA,GPIO4); + gpio_set_mode (GPIOA, GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, + GPIO4); + gpio_set (GPIOA, GPIO4); gpio_set_mode (GPIOA, GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, GPIO5); - gpio_clear(GPIOA,GPIO5); + gpio_clear (GPIOA, GPIO5); - exti_select_source(EXTI5, GPIOA); - exti_set_trigger(EXTI5, EXTI_TRIGGER_BOTH); - exti_enable_request(EXTI5); + exti_select_source (EXTI5, GPIOA); + exti_set_trigger (EXTI5, EXTI_TRIGGER_BOTH); + exti_enable_request (EXTI5); /*Dial contacts */ - gpio_set_mode (GPIOA, GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, GPIO6); - gpio_set(GPIOA,GPIO6); + gpio_set_mode (GPIOA, GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, + GPIO6); + gpio_set (GPIOA, GPIO6); gpio_set_mode (GPIOA, GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, GPIO7); - gpio_clear(GPIOA,GPIO7); + gpio_clear (GPIOA, GPIO7); - exti_select_source(EXTI7, GPIOA); - exti_set_trigger(EXTI7, EXTI_TRIGGER_RISING); - exti_enable_request(EXTI7); + exti_select_source (EXTI7, GPIOA); + exti_set_trigger (EXTI7, EXTI_TRIGGER_RISING); + exti_enable_request (EXTI7); - nvic_enable_irq(NVIC_EXTI9_5_IRQ); + nvic_enable_irq (NVIC_EXTI9_5_IRQ); - /*hookswitch*/ - gpio_set_mode (GPIOC, GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, GPIO15); - gpio_set(GPIOC,GPIO15); + /*hookswitch */ + gpio_set_mode (GPIOC, GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, + GPIO15); + gpio_set (GPIOC, GPIO15); gpio_set_mode (GPIOC, GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, GPIO14); - gpio_clear(GPIOC,GPIO14); + gpio_clear (GPIOC, GPIO14); - exti_select_source(EXTI14, GPIOC); - exti_set_trigger(EXTI14, EXTI_TRIGGER_BOTH); - exti_enable_request(EXTI14); + exti_select_source (EXTI14, GPIOC); + exti_set_trigger (EXTI14, EXTI_TRIGGER_BOTH); + exti_enable_request (EXTI14); - nvic_enable_irq(NVIC_EXTI15_10_IRQ); + nvic_enable_irq (NVIC_EXTI15_10_IRQ); } |