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handle case w/o display - release

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philippe44
2020-01-30 22:48:36 -08:00
parent 9d2aa978d5
commit 5d07344b4d
9 changed files with 55 additions and 22 deletions
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40
components/services/display.c
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@@ -29,7 +29,7 @@
// here we should include all possible drivers
extern struct display_s SSD1306_display;
struct display_s *display;
struct display_s *display = NULL;
static const char *TAG = "display";
@@ -72,6 +72,7 @@ void display_init(char *welcome) {
init = true;
ESP_LOGI(TAG, "Display initialization successful");
} else {
display = NULL;
ESP_LOGE(TAG, "Display initialization failed");
}
} else {
@@ -103,7 +104,7 @@ void display_init(char *welcome) {
}
/****************************************************************************************
* This is not really thread-safe as displayer_task might be in the middle of line drawing
* This is not thread-safe as displayer_task might be in the middle of line drawing
* but it won't crash (I think) and making it thread-safe would be complicated for a
* feature which is secondary (the LMS version of scrolling is thread-safe)
*/
@@ -128,11 +129,19 @@ static void displayer_task(void *args) {
if (scroll_sleep <= 10) {
// something to scroll (or we'll wake-up every pause ms ... no big deal)
if (*displayer.string && displayer.state == DISPLAYER_ACTIVE) {
display->line(2, -displayer.offset, DISPLAY_CLEAR | DISPLAY_UPDATE, displayer.string);
xSemaphoreTake(displayer.mutex, portMAX_DELAY);
// need to work with local copies as we don't want to suspend caller
int offset = -displayer.offset;
char *string = strdup(displayer.string);
scroll_sleep = displayer.offset ? displayer.speed : displayer.pause;
displayer.offset = displayer.offset >= displayer.boundary ? 0 : (displayer.offset + min(displayer.by, displayer.boundary - displayer.offset));
xSemaphoreGive(displayer.mutex);
xSemaphoreGive(displayer.mutex);
// now display using safe copies, can be lengthy
display->line(2, offset, DISPLAY_CLEAR | DISPLAY_UPDATE, string);
free(string);
} else {
scroll_sleep = DEFAULT_SLEEP;
}
@@ -149,8 +158,8 @@ static void displayer_task(void *args) {
displayer.tick = tick;
displayer.elapsed += elapsed / 1000;
xSemaphoreGive(displayer.mutex);
if (displayer.elapsed < 3600) sprintf(counter, "%2u:%02u", displayer.elapsed / 60, displayer.elapsed % 60);
else sprintf(counter, "%2u:%2u:%02u", displayer.elapsed / 3600, (displayer.elapsed % 3600) / 60, displayer.elapsed % 60);
if (displayer.elapsed < 3600) sprintf(counter, "%5u:%02u", displayer.elapsed / 60, displayer.elapsed % 60);
else sprintf(counter, "%2u:%02u:%02u", displayer.elapsed / 3600, (displayer.elapsed % 3600) / 60, displayer.elapsed % 60);
display->line(1, DISPLAY_RIGHT, (DISPLAY_CLEAR | DISPLAY_ONLY_EOL) | DISPLAY_UPDATE, counter);
timer_sleep = 1000;
} else timer_sleep = max(1000 - elapsed, 0);
@@ -171,6 +180,10 @@ void displayer_metadata(char *artist, char *album, char *title) {
char *string = displayer.string, *p;
int len = SCROLLABLE_SIZE;
// need a display!
if (!display) return;
// just do title if there is no config set
if (!displayer.metadata_config) {
strncpy(displayer.string, title ? title : "", SCROLLABLE_SIZE);
return;
@@ -218,7 +231,7 @@ void displayer_metadata(char *artist, char *album, char *title) {
p = strchr(q + 1, '%');
}
} else {
string = strdup(title ? title : "");
strncpy(string, title ? title : "", SCROLLABLE_SIZE);
}
// get optional scroll speed
@@ -232,11 +245,13 @@ void displayer_metadata(char *artist, char *album, char *title) {
xSemaphoreGive(displayer.mutex);
}
/****************************************************************************************
*
*/
void displayer_scroll(char *string, int speed) {
// need a display!
if (!display) return;
xSemaphoreTake(displayer.mutex, portMAX_DELAY);
if (speed) displayer.speed = speed;
@@ -252,10 +267,13 @@ void displayer_scroll(char *string, int speed) {
*
*/
void displayer_timer(enum displayer_time_e mode, int elapsed, int duration) {
// need a display!
if (!display) return;
xSemaphoreTake(displayer.mutex, portMAX_DELAY);
if (elapsed >= 0) displayer.elapsed = elapsed;
if (duration >= 0) displayer.duration = duration;
if (elapsed >= 0) displayer.elapsed = elapsed / 1000;
if (duration >= 0) displayer.duration = duration / 1000;
if (displayer.timer) displayer.tick = xTaskGetTickCount();
xSemaphoreGive(displayer.mutex);
@@ -267,6 +285,8 @@ void displayer_timer(enum displayer_time_e mode, int elapsed, int duration) {
void displayer_control(enum displayer_cmd_e cmd, ...) {
va_list args;
if (!display) return;
va_start(args, cmd);
xSemaphoreTake(displayer.mutex, portMAX_DELAY);