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jerzy pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/mynewt-core.git
The following commit(s) were added to refs/heads/master by this push:
new 487008433 lvgl: Add support for 16 bit 8080 MIPI DSI
487008433 is described below
commit 487008433d290f29221afed3650d8552c9ccd0e0
Author: Jerzy Kasenberg <[email protected]>
AuthorDate: Thu Jun 15 12:49:15 2023 +0200
lvgl: Add support for 16 bit 8080 MIPI DSI
This adds support for 16 bit data bus for LCD.
Default implementation uses hal_gpio to send data.
Signed-off-by: Jerzy Kasenberg <[email protected]>
---
hw/drivers/display/lcd_itf/itf_8080/src/itf_8080.c | 51 +++++++++++++++++++++-
hw/drivers/display/lcd_itf/itf_8080/syscfg.yml | 24 ++++++++++
hw/drivers/display/lcd_itf/pkg.yml | 2 +
hw/drivers/display/lcd_itf/syscfg.yml | 1 +
4 files changed, 76 insertions(+), 2 deletions(-)
diff --git a/hw/drivers/display/lcd_itf/itf_8080/src/itf_8080.c
b/hw/drivers/display/lcd_itf/itf_8080/src/itf_8080.c
index a1a503b66..2df025c6b 100644
--- a/hw/drivers/display/lcd_itf/itf_8080/src/itf_8080.c
+++ b/hw/drivers/display/lcd_itf/itf_8080/src/itf_8080.c
@@ -44,6 +44,44 @@ lcd_itf_8080_write_byte(uint8_t b)
}
#endif
+#ifndef LCD_ITF_8080_WRITE_WORD
+
+#if MYNEWT_VAL_CHOICE(LCD_ITF, 8080_II_8_bit)
+
+#define LCD_ITF_8080_WRITE_WORD(w) do { \
+ LCD_ITF_8080_WRITE_BYTE(w >> 8); \
+ LCD_ITF_8080_WRITE_BYTE((uint8_t)w); \
+} while (0)
+
+#else
+
+#define LCD_ITF_8080_WRITE_WORD(n) lcd_itf_8080_write_word(n)
+
+void
+lcd_itf_8080_write_word(uint16_t w)
+{
+ hal_gpio_write(MYNEWT_VAL(LCD_D0_PIN), PIN(w, 0));
+ hal_gpio_write(MYNEWT_VAL(LCD_D1_PIN), PIN(w, 1));
+ hal_gpio_write(MYNEWT_VAL(LCD_D2_PIN), PIN(w, 2));
+ hal_gpio_write(MYNEWT_VAL(LCD_D3_PIN), PIN(w, 3));
+ hal_gpio_write(MYNEWT_VAL(LCD_D4_PIN), PIN(w, 4));
+ hal_gpio_write(MYNEWT_VAL(LCD_D5_PIN), PIN(w, 5));
+ hal_gpio_write(MYNEWT_VAL(LCD_D6_PIN), PIN(w, 6));
+ hal_gpio_write(MYNEWT_VAL(LCD_D7_PIN), PIN(w, 7));
+ hal_gpio_write(MYNEWT_VAL(LCD_D8_PIN), PIN(w, 8));
+ hal_gpio_write(MYNEWT_VAL(LCD_D9_PIN), PIN(w, 9));
+ hal_gpio_write(MYNEWT_VAL(LCD_D10_PIN), PIN(w, 10));
+ hal_gpio_write(MYNEWT_VAL(LCD_D11_PIN), PIN(w, 11));
+ hal_gpio_write(MYNEWT_VAL(LCD_D12_PIN), PIN(w, 12));
+ hal_gpio_write(MYNEWT_VAL(LCD_D13_PIN), PIN(w, 13));
+ hal_gpio_write(MYNEWT_VAL(LCD_D14_PIN), PIN(w, 14));
+ hal_gpio_write(MYNEWT_VAL(LCD_D15_PIN), PIN(w, 15));
+ hal_gpio_write(MYNEWT_VAL(LCD_WR_PIN), 0);
+ hal_gpio_write(MYNEWT_VAL(LCD_WR_PIN), 1);
+}
+#endif
+#endif
+
void
lcd_itf_write_bytes(const uint8_t *bytes, size_t size)
{
@@ -61,8 +99,7 @@ lcd_itf_write_color_data(const void *pixels, size_t size)
LCD_CS_PIN_ACTIVE();
if (LV_COLOR_16_SWAP == 0) {
for (size_t i = 0; i < size; i += 2, data++) {
- LCD_ITF_8080_WRITE_BYTE(*data >> 8);
- LCD_ITF_8080_WRITE_BYTE((uint8_t)*data);
+ LCD_ITF_8080_WRITE_WORD(*data);
}
} else {
lcd_itf_write_bytes((const uint8_t *)pixels, size);
@@ -107,4 +144,14 @@ lcd_itf_init(void)
hal_gpio_init_out(MYNEWT_VAL(LCD_D5_PIN), 0);
hal_gpio_init_out(MYNEWT_VAL(LCD_D6_PIN), 0);
hal_gpio_init_out(MYNEWT_VAL(LCD_D7_PIN), 0);
+#if MYNEWT_VAL_CHOICE(LCD_ITF, 8080_II_16_bit)
+ hal_gpio_init_out(MYNEWT_VAL(LCD_D8_PIN), 0);
+ hal_gpio_init_out(MYNEWT_VAL(LCD_D9_PIN), 0);
+ hal_gpio_init_out(MYNEWT_VAL(LCD_D10_PIN), 0);
+ hal_gpio_init_out(MYNEWT_VAL(LCD_D11_PIN), 0);
+ hal_gpio_init_out(MYNEWT_VAL(LCD_D12_PIN), 0);
+ hal_gpio_init_out(MYNEWT_VAL(LCD_D13_PIN), 0);
+ hal_gpio_init_out(MYNEWT_VAL(LCD_D14_PIN), 0);
+ hal_gpio_init_out(MYNEWT_VAL(LCD_D15_PIN), 0);
+#endif
}
diff --git a/hw/drivers/display/lcd_itf/itf_8080/syscfg.yml
b/hw/drivers/display/lcd_itf/itf_8080/syscfg.yml
index 51d73807b..115b22ecc 100644
--- a/hw/drivers/display/lcd_itf/itf_8080/syscfg.yml
+++ b/hw/drivers/display/lcd_itf/itf_8080/syscfg.yml
@@ -49,6 +49,30 @@ syscfg.defs:
description: D7 pin for LCD.
value:
restrictions: $notnull
+ LCD_D8_PIN:
+ description: D8 pin for LCD.
+ value:
+ LCD_D9_PIN:
+ description: D9 pin for LCD.
+ value:
+ LCD_D10_PIN:
+ description: D10 pin for LCD.
+ value:
+ LCD_D11_PIN:
+ description: D11 pin for LCD.
+ value:
+ LCD_D12_PIN:
+ description: D12 pin for LCD.
+ value:
+ LCD_D13_PIN:
+ description: D13 pin for LCD.
+ value:
+ LCD_D14_PIN:
+ description: D14 pin for LCD.
+ value:
+ LCD_D15_PIN:
+ description: D15 pin for LCD.
+ value:
LCD_WR_PIN:
description: WR pin for LCD.
value:
diff --git a/hw/drivers/display/lcd_itf/pkg.yml
b/hw/drivers/display/lcd_itf/pkg.yml
index 58db2b9e6..006dd9b2b 100644
--- a/hw/drivers/display/lcd_itf/pkg.yml
+++ b/hw/drivers/display/lcd_itf/pkg.yml
@@ -30,4 +30,6 @@ pkg.deps.'LCD_ITF == "spi"':
- "@apache-mynewt-core/hw/drivers/display/lcd_itf/itf_spi"
pkg.deps.'LCD_ITF == "8080_II_8_bit"':
- "@apache-mynewt-core/hw/drivers/display/lcd_itf/itf_8080"
+pkg.deps.'LCD_ITF == "8080_II_16_bit"':
+ - "@apache-mynewt-core/hw/drivers/display/lcd_itf/itf_8080"
diff --git a/hw/drivers/display/lcd_itf/syscfg.yml
b/hw/drivers/display/lcd_itf/syscfg.yml
index cab3c7263..0705c716e 100644
--- a/hw/drivers/display/lcd_itf/syscfg.yml
+++ b/hw/drivers/display/lcd_itf/syscfg.yml
@@ -24,6 +24,7 @@ syscfg.defs:
- custom
- spi
- 8080_II_8_bit
+ - 8080_II_16_bit
value: spi
LCD_CS_PIN:
description: LCD chip select pin for SPI.
