xenua
/
zmk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
Browse Source

Detect additional key presses on the same output. 

* Interrupts won't follow on additional keys
  pressed on an already "held" output pin,
  so queue additional reads while any keys are held.
xmkb
Pete Johanson 4 years ago
parent
092fa866af
commit
497049ff68
1 changed files with 13 additions and 3 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 10
      app/drivers/zephyr/kscan_gpio_matrix.c

10
app/drivers/zephyr/kscan_gpio_matrix.c
Unescape View File

@ -125,6 +125,7 @@ static int kscan_gpio_config_interrupts(struct device **devices, @@ -125,6 +125,7 @@ static int kscan_gpio_config_interrupts(struct device **devices,
} \
static int kscan_gpio_read_##n(struct device *dev) \
{ \
bool submit_follow_up_read = false; \
struct kscan_gpio_data_##n *data = dev->driver_data; \
static bool read_state[INST_MATRIX_ROWS(n)][INST_MATRIX_COLS(n)]; \
LOG_DBG("Scanning the matrix for updated state"); \
@ -155,6 +156,8 @@ static int kscan_gpio_config_interrupts(struct device **devices, @@ -155,6 +156,8 @@ static int kscan_gpio_config_interrupts(struct device **devices,
for (int c = 0; c < INST_MATRIX_COLS(n); c++) \
{ \
bool pressed = read_state[r][c]; \
/* Follow up reads needed because further interrupts won't fire on already tripped input GPIO pins */ \
submit_follow_up_read = (submit_follow_up_read || pressed); \
if (pressed != data->matrix_state[r][c]) \
{ \
LOG_DBG("Sending event at %d,%d state %s", \
@ -164,6 +167,13 @@ static int kscan_gpio_config_interrupts(struct device **devices, @@ -164,6 +167,13 @@ static int kscan_gpio_config_interrupts(struct device **devices,
} \
} \
} \
if (submit_follow_up_read) { \
COND_CODE_0(DT_INST_PROP(n, debounce_period), \
({ k_work_submit(&data->work); }), \
({ \
k_delayed_work_cancel(&data->work); \
k_delayed_work_submit(&data->work, K_MSEC(1)); })) \
} \
return 0; \
} \
static void kscan_gpio_work_handler_##n(struct k_work *work) \

Write Preview
Loading…
Cancel
Save