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drivers: display: improve LUT table for ssd1363

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Model on ssd1327

Signed-off-by: Camille BAUD <mail@massdriver.space>
This commit is contained in:
Camille BAUD
2025-08-11 08:27:13 +02:00
committed by Benjamin Cabé
parent 36f2436206
commit 70469b6a27
1 changed files with 14 additions and 12 deletions
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26
drivers/display/display_ssd1363.c
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@@ -47,7 +47,8 @@ LOG_MODULE_REGISTER(ssd1363, CONFIG_DISPLAY_LOG_LEVEL);
#define SSD1363_SET_REMAP_VALUE 0xA0
#define SSD1363_SET_GRAY_ENHANCE 0xB4
#define SSD1363_RESET_DELAY 100
#define SSD1363_RESET_DELAY 100
#define SSD1363_SET_LUT_COUNT 15
typedef int (*ssd1363_write_bus_cmd_fn)(const struct device *dev, const uint8_t cmd,
const uint8_t *data, size_t len);
@@ -75,8 +76,7 @@ struct ssd1363_config {
uint8_t precharge_period;
uint8_t precharge_config;
uint16_t column_offset;
uint8_t grayscale_table[15];
bool grayscale_table_present;
const uint8_t *grayscale_table;
bool color_inversion;
bool grayscale_enhancement;
uint8_t *conversion_buf;
@@ -156,8 +156,9 @@ static inline int ssd1363_set_hardware_config(const struct device *dev)
if (err < 0) {
return err;
}
if (config->grayscale_table_present) {
err = config->write_cmd(dev, SSD1363_SET_LUT, config->grayscale_table, 15);
if (config->grayscale_table != NULL) {
err = config->write_cmd(dev, SSD1363_SET_LUT, config->grayscale_table,
SSD1363_SET_LUT_COUNT);
if (err < 0) {
return err;
}
@@ -462,17 +463,15 @@ static DEVICE_API(display, ssd1363_driver_api) = {
#define SSD1363_CONV_BUFFER_SIZE(node_id) \
DIV_ROUND_UP(DT_PROP(node_id, width) * CONFIG_SSD1363_CONV_BUFFER_LINES, 1)
#define SSD1363_GRAYSCALE_TABLE_YES(node_id) \
.grayscale_table = DT_PROP(node_id, grayscale_table), .grayscale_table_present = true
#define SSD1363_GRAYSCALE_TABLE_NO(node_id) .grayscale_table_present = false
#define SSD1363_GRAYSCALE_TABLE(node_id) \
COND_CODE_1(DT_NODE_HAS_PROP(node_id, grayscale_table), \
(SSD1363_GRAYSCALE_TABLE_YES(node_id)), (SSD1363_GRAYSCALE_TABLE_NO(node_id)))
.grayscale_table = COND_CODE_1(DT_NODE_HAS_PROP(node_id, grayscale_table), \
(ssd1363_grayscale_table_##node_id), (NULL))
#define SSD1363_DEFINE_I2C(node_id) \
static uint8_t conversion_buf##node_id[SSD1363_CONV_BUFFER_SIZE(node_id)]; \
COND_CODE_1(DT_NODE_HAS_PROP(node_id, grayscale_table), ( \
static const uint8_t ssd1363_grayscale_table_##node_id[SSD1363_SET_LUT_COUNT] = \
DT_PROP(node_id, grayscale_table);), ()) \
static const struct ssd1363_config config##node_id = { \
.i2c = I2C_DT_SPEC_GET(node_id), \
.height = DT_PROP(node_id, height), \
@@ -503,6 +502,9 @@ static DEVICE_API(display, ssd1363_driver_api) = {
#define SSD1363_DEFINE_MIPI(node_id) \
static uint8_t conversion_buf##node_id[SSD1363_CONV_BUFFER_SIZE(node_id)]; \
COND_CODE_1(DT_NODE_HAS_PROP(node_id, grayscale_table), ( \
static const uint8_t ssd1363_grayscale_table_##node_id[SSD1363_SET_LUT_COUNT] = \
DT_PROP(node_id, grayscale_table);), ()) \
static const struct ssd1363_config config##node_id = { \
.mipi_dev = DEVICE_DT_GET(DT_PARENT(node_id)), \
.dbi_config = MIPI_DBI_CONFIG_DT( \