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Copy gpio_get_level to IRAM

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Required so ISR does not use Flash
This commit is contained in:
me-no-dev
2018-12-07 09:31:01 +01:00
parent a7066681bc
commit 1f9e00849f
1 changed files with 14 additions and 5 deletions
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19
driver/camera.c
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@ -152,6 +152,15 @@ static size_t i2s_bytes_per_sample(i2s_sampling_mode_t mode)
}
}
static int IRAM_ATTR _gpio_get_level(gpio_num_t gpio_num)
{
if (gpio_num < 32) {
return (GPIO.in >> gpio_num) & 0x1;
} else {
return (GPIO.in1.data >> (gpio_num - 32)) & 0x1;
}
}
static void IRAM_ATTR vsync_intr_disable()
{
gpio_set_intr_type(s_state->config.pin_vsync, GPIO_INTR_DISABLE);
@ -167,13 +176,13 @@ static void skip_frame()
if (s_state == NULL) {
return;
}
while (gpio_get_level(s_state->config.pin_vsync) == 0) {
while (_gpio_get_level(s_state->config.pin_vsync) == 0) {
;
}
while (gpio_get_level(s_state->config.pin_vsync) != 0) {
while (_gpio_get_level(s_state->config.pin_vsync) != 0) {
;
}
while (gpio_get_level(s_state->config.pin_vsync) == 0) {
while (_gpio_get_level(s_state->config.pin_vsync) == 0) {
;
}
}
@ -462,7 +471,7 @@ static void i2s_run()
// wait for vsync
ESP_LOGV(TAG, "Waiting for negative edge on VSYNC");
while (gpio_get_level(s_state->config.pin_vsync) != 0) {
while (_gpio_get_level(s_state->config.pin_vsync) != 0) {
;
}
ESP_LOGV(TAG, "Got VSYNC");
@ -535,7 +544,7 @@ static void IRAM_ATTR vsync_isr(void* arg)
GPIO.status_w1tc = GPIO.status;
bool need_yield = false;
//if vsync is low and we have received some data, frame is done
if (gpio_get_level(s_state->config.pin_vsync) == 0) {
if (_gpio_get_level(s_state->config.pin_vsync) == 0) {
if(s_state->dma_received_count > 0) {
signal_dma_buf_received(&need_yield);
//ets_printf("end_vsync\n");