diff options
| author | Keith Packard <keithp@keithp.com> | 2011-05-23 11:52:40 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2011-05-23 16:13:55 -0600 |
| commit | 41d76a850d7ded2d02c41f5a4b1f1a68936598ac (patch) | |
| tree | c29cc32fda4c8e3eef4ff7182b56d1f71476f6b7 /src-avr | |
| parent | 29e59e4a1041e20fb10aac8715191bde4ab178d1 (diff) | |
src-avr: Control log with pin on companion connector
Use the SPI chip select (SS) which is hooked to port B0.
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'src-avr')
| -rw-r--r-- | src-avr/ao_log_telescience.c | 54 |
1 files changed, 38 insertions, 16 deletions
diff --git a/src-avr/ao_log_telescience.c b/src-avr/ao_log_telescience.c index f092027a..bda89129 100644 --- a/src-avr/ao_log_telescience.c +++ b/src-avr/ao_log_telescience.c @@ -86,8 +86,35 @@ ao_log_valid(struct ao_log_telescience *log) } void +ao_log_start(void) +{ + printf("Log goes from %ld to %ld\n", ao_log_current_pos, ao_log_end_pos); + ao_log_running = 1; + ao_wakeup(&ao_log_running); +} + +void +ao_log_stop(void) +{ + printf ("Log stopped at %ld\n", ao_log_current_pos); + ao_log_running = 0; + ao_wakeup((void *) &ao_adc_head); +} + +void +ao_log_check_pin(void) +{ + if (PINB & (1 << PINB0)) + ao_log_stop(); + else + ao_log_start(); +} + +void ao_log_telescience(void) { + ao_log_check_pin(); + ao_storage_setup(); /* Find end of data */ @@ -128,22 +155,6 @@ ao_log_telescience(void) } void -ao_log_start(void) -{ - printf("Log goes from %ld to %ld\n", ao_log_current_pos, ao_log_end_pos); - ao_log_running = 1; - ao_wakeup(&ao_log_running); -} - -void -ao_log_stop(void) -{ - printf ("Log stopped at %ld\n", ao_log_current_pos); - ao_log_running = 0; - ao_wakeup((void *) &ao_adc_head); -} - -void ao_log_set(void) { ao_cmd_hex(); @@ -214,11 +225,22 @@ const struct ao_cmds ao_log_cmds[] = { { 0, NULL }, }; +ISR(PCINT0_vect) +{ + ao_log_check_pin(); +} + void ao_log_init(void) { ao_log_running = 0; + PCMSK0 |= (1 << PCINT0); /* Enable PCINT0 pin change */ + + PCICR |= (1 << PCIE0); /* Enable pin change interrupt */ + + PORTB &= ~(1 << PORTB0); /* Pull input down; always log if NC */ + ao_cmd_register(&ao_log_cmds[0]); ao_add_task(&ao_log_task, ao_log_telescience, "log"); |