From 29a9b484cfeb6b2905a078d9ebe5bc65ad1808b6 Mon Sep 17 00:00:00 2001
From: Martin/Geno <geno+dev@fireorbit.de>
Date: Sat, 24 Aug 2019 18:03:49 +0200
Subject: [PATCH] ble: card10 svc - add lcd brightness
---
Documentation/bluetooth/card10.rst | 13 ++++++++
epicardium/ble/card10.c | 51 ++++++++++++++++++++++++++++++
2 files changed, 64 insertions(+)
diff --git a/Documentation/bluetooth/card10.rst b/Documentation/bluetooth/card10.rst
index a8811511..3326d6d0 100644
--- a/Documentation/bluetooth/card10.rst
+++ b/Documentation/bluetooth/card10.rst
@@ -80,6 +80,11 @@ The current draft uses following service specification:
UUID: ``42230220-2342-2342-2342-234223422342``
write no reponse
+- LCD brightness characteristic:
+
+ UUID: ``42230221-2342-2342-2342-234223422342``
+ write no reponse
+
- Light sensor characteristic:
UUID: ``422302f0-2342-2342-2342-234223422342``
@@ -175,6 +180,14 @@ By defining 11x rgb from left to right. You need also to set exchange a bigger M
- set a rainbow beginnig with red on the right edge: ``0xff0000ff8b00e8ff005dff0000ff2e00ffb900b9ff002eff5d00ffe800ffff008b``
+LCD brightness characteristic
+---------------------------------
+This charatieristic set the brightness of the lcd backlight 0-100 in ``uint16``.
+It works only, if no application (pycardium app) blocks the screen.
+
+- set to 100 % ``0x6400``
+- set to 20 % ``0x1400`` (default value)
+
Light sensor characteristic
---------------------------------
diff --git a/epicardium/ble/card10.c b/epicardium/ble/card10.c
index 2105ac02..9551f789 100644
--- a/epicardium/ble/card10.c
+++ b/epicardium/ble/card10.c
@@ -65,6 +65,9 @@ enum {
/*!< \brief leds above characteristic */
CARD10_LEDS_ABOVE_CH_HDL,
CARD10_LEDS_ABOVE_VAL_HDL,
+ /*!< \brief lcd birhtness characteristic */
+ CARD10_LCD_BRIGHTNESS_CH_HDL,
+ CARD10_LCD_BRIGHTNESS_VAL_HDL,
/*!< \brief light sensor characteristic */
CARD10_LIGHT_SENSOR_CH_HDL,
CARD10_LIGHT_SENSOR_VAL_HDL,
@@ -235,6 +238,17 @@ static const uint8_t UUID_char_leds_above[] = {
static const uint8_t UUID_attChar_leds_above[] = {
CARD10_UUID_SUFFIX, 0x20, CARD10_UUID_PREFIX
};
+
+/* BLE UUID for card10 set lcd brightness */
+static const uint8_t UUID_char_lcd_brightness[] = {
+ ATT_PROP_WRITE_NO_RSP,
+ UINT16_TO_BYTES(CARD10_LCD_BRIGHTNESS_VAL_HDL),
+ CARD10_UUID_SUFFIX, 0x21, CARD10_UUID_PREFIX
+};
+
+static const uint8_t UUID_attChar_lcd_brightness[] = {
+ CARD10_UUID_SUFFIX, 0x21, CARD10_UUID_PREFIX
+};
// starting at 0xf0 with read only characteristics
/* BLE UUID for card10 char light sensor */
@@ -463,6 +477,21 @@ static const attsAttr_t card10SvcAttrList[] = {
(ATTS_PERMIT_WRITE | ATTS_PERMIT_WRITE_ENC |
ATTS_PERMIT_WRITE_AUTH) },
+ // LCD Brightness
+
+ { .pUuid = attChUuid,
+ .pValue = (uint8_t *)UUID_char_lcd_brightness,
+ .pLen = (uint16_t *)&UUID_char_len,
+ .maxLen = sizeof(UUID_char_lcd_brightness),
+ .permissions = ATTS_PERMIT_READ },
+ { .pUuid = UUID_attChar_lcd_brightness,
+ .pValue = NULL,
+ .maxLen = sizeof(uint16_t),
+ .settings = ATTS_SET_WRITE_CBACK,
+ .permissions =
+ (ATTS_PERMIT_WRITE | ATTS_PERMIT_WRITE_ENC |
+ ATTS_PERMIT_WRITE_AUTH) },
+
// Light sensor
{ .pUuid = attChUuid,
@@ -515,6 +544,7 @@ static uint8_t writeCard10CB(
) {
uint16_t ui16 = 0;
uint8_t ui8 = 0;
+ int intVar = 0;
switch (handle) {
// time
@@ -704,6 +734,27 @@ static uint8_t writeCard10CB(
pValue[ui16 * 3 + 2]
);
}
+ return ATT_SUCCESS;
+ case CARD10_LCD_BRIGHTNESS_VAL_HDL:
+ intVar = epic_disp_open();
+ if (intVar < 0) {
+ APP_TRACE_INFO1(
+ "ble-card10: lock display to set brightness failed: %d",
+ intVar
+ );
+ return ATT_ERR_RANGE;
+ }
+ BYTES_TO_UINT16(ui16, pValue);
+ intVar = epic_disp_backlight(ui16);
+ APP_TRACE_INFO2(
+ "ble-card10: set lcd brightness to %ld - %d\n",
+ ui16,
+ intVar
+ );
+ epic_disp_close();
+ if (intVar < 0)
+ return ATT_ERR_RANGE;
+ return ATT_SUCCESS;
default:
APP_TRACE_INFO1(
"ble-card10: unsupported characteristic: %c\n", handle
--
GitLab