From b390d098f2f5cf954e7a1286b4f3c7f92a725bcd Mon Sep 17 00:00:00 2001
From: schneider <schneider@blinkenlichts.net>
Date: Sat, 13 May 2023 02:16:40 +0200
Subject: [PATCH] espan: portexpander: detect rev6
---
components/badge23/espan.c | 2 ++
.../badge23/include/badge23/portexpander.h | 1 +
components/badge23/portexpander.c | 16 ++++++++++++++++
3 files changed, 19 insertions(+)
diff --git a/components/badge23/espan.c b/components/badge23/espan.c
index efc9e7bfb9..6ea9db68b7 100644
--- a/components/badge23/espan.c
+++ b/components/badge23/espan.c
@@ -54,6 +54,8 @@ void os_app_main(void)
leds_init();
captouch_init();
+ if(portexpander_rev6()) printf("REV6\n"); else printf("REV5\n");
+
vTaskDelay(2000 / portTICK_PERIOD_MS);
//set_global_vol_dB(0);
diff --git a/components/badge23/include/badge23/portexpander.h b/components/badge23/include/badge23/portexpander.h
index 105293ff46..8dfed44c75 100644
--- a/components/badge23/include/badge23/portexpander.h
+++ b/components/badge23/include/badge23/portexpander.h
@@ -5,4 +5,5 @@
void portexpander_set_badgelink(const bool enabled);
void portexpander_set_leds(const bool enabled);
void portexpander_set_lcd_reset(const bool enabled);
+bool portexpander_rev6(void);
void portexpander_init(void);
diff --git a/components/badge23/portexpander.c b/components/badge23/portexpander.c
index 6543230bf2..1a0fa45bdf 100644
--- a/components/badge23/portexpander.c
+++ b/components/badge23/portexpander.c
@@ -34,6 +34,17 @@ static esp_err_t pca9557_i2c_read(const uint8_t addr, const uint8_t reg, uint8_t
return ret;
}
+static bool pca9557_detect(const uint8_t addr)
+{
+ uint8_t data;
+ esp_err_t ret = pca9557_i2c_read(addr, 0, &data);
+ if(ret == ESP_OK) {
+ return true;
+ } else {
+ return false;
+ }
+}
+
static uint8_t pca9557_get(const uint8_t addr)
{
uint8_t pins;
@@ -85,6 +96,11 @@ void portexpander_set_lcd_reset(const bool enabled)
pca9557_set(PEX2, pex2_state);
}
+bool portexpander_rev6(void)
+{
+ return pca9557_detect(PEX1);
+}
+
void portexpander_init(void)
{
pca9557_set_polarities(PEX1, 0);
--
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