sergiotarxz/nuttx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

drivers/lcd: ssd1306: separate lcd_dev_s setup to separate object. g_oleddev takes 1 KiB because framebuffer and was allocated to .data section because of lcd_dev_s function pointer setup. Move lcd_dev_s setup out, so that g_oleddev goes to .bss and avoid wasting ROM.

Browse Source
This commit is contained in:
Jussi Kivilinna 2017-08-22 08:46:00 -06:00 committed by Gregory Nutt
parent 89cc4741ac
commit a099506b1b
1 changed files with 23 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
drivers/lcd/ssd1306_base.c
View File

@ -221,28 +221,29 @@ static const struct lcd_planeinfo_s g_planeinfo =
.bpp = SSD1306_DEV_BPP, /* Bits-per-pixel */
};
/* This is the outside visible interface for the OLED driver */
static const struct lcd_dev_s g_oleddev_dev =
{
/* LCD Configuration */
.getvideoinfo = ssd1306_getvideoinfo,
.getplaneinfo = ssd1306_getplaneinfo,
/* LCD RGB Mapping -- Not supported */
/* Cursor Controls -- Not supported */
/* LCD Specific Controls */
.getpower = ssd1306_getpower,
.setpower = ssd1306_setpower,
.getcontrast = ssd1306_getcontrast,
.setcontrast = ssd1306_setcontrast,
};
/* This is the OLED driver instance (only a single device is supported for now) */
static struct ssd1306_dev_s g_oleddev =
{
.dev =
{
/* LCD Configuration */
.getvideoinfo = ssd1306_getvideoinfo,
.getplaneinfo = ssd1306_getplaneinfo,
/* LCD RGB Mapping -- Not supported */
/* Cursor Controls -- Not supported */
/* LCD Specific Controls */
.getpower = ssd1306_getpower,
.setpower = ssd1306_setpower,
.getcontrast = ssd1306_getcontrast,
.setcontrast = ssd1306_setcontrast,
},
};
static struct ssd1306_dev_s g_oleddev;
/**************************************************************************************
* Private Functions
@ -1035,6 +1036,8 @@ FAR struct lcd_dev_s *ssd1306_initialize(FAR struct i2c_master_s *dev,
{
FAR struct ssd1306_dev_s *priv = &g_oleddev;
priv->dev = g_oleddev_dev;
DEBUGASSERT(dev && devno == 0);
priv->on = false;