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drivers: ssd1306: cleanup and make functions static

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Cleanup and make functions static.

Signed-off-by: Johann Fischer <j.fischer@phytec.de>
This commit is contained in:
Johann Fischer 2019-12-18 10:12:29 +01:00 • committed by Carles Cufí
commit f54b106f60
1 changed files with 10 additions and 14 deletions
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24
drivers/display/ssd1306.c
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@ -169,7 +169,7 @@ static inline int ssd1306_set_charge_pump(const struct device *dev)
DT_INST_0_SOLOMON_SSD1306FB_BASE_ADDRESS);
}
int ssd1306_resume(const struct device *dev)
static int ssd1306_resume(const struct device *dev)
{
struct ssd1306_data *driver = dev->driver_data;
/* set display on */
@ -177,7 +177,7 @@ int ssd1306_resume(const struct device *dev)
SSD1306_DISPLAY_ON);
}
int ssd1306_suspend(const struct device *dev)
static int ssd1306_suspend(const struct device *dev)
{
struct ssd1306_data *driver = dev->driver_data;
/* set display on */
@ -185,17 +185,12 @@ int ssd1306_suspend(const struct device *dev)
SSD1306_DISPLAY_OFF);
}
int ssd1306_write_page(const struct device *dev, u8_t page, void const *data,
size_t length)
#if defined(CONFIG_SSD1306_SH1106_COMPATIBLE)
static int ssd1306_write_page(const struct device *dev, u8_t page,
void const *data, size_t length)
{
struct ssd1306_data *driver = dev->driver_data;
u8_t cmd_buf[] = {
#ifdef OLED_PANEL_CONTROLLER_SSD1306
SSD1306_CONTROL_BYTE_CMD,
SSD1306_SET_MEM_ADDRESSING_MODE,
SSD1306_CONTROL_BYTE_CMD,
SSD1306_SET_MEM_ADDRESSING_PAGE,
#endif
SSD1306_CONTROL_BYTE_CMD,
SSD1306_SET_LOWER_COL_ADDRESS |
(DT_INST_0_SOLOMON_SSD1306FB_SEGMENT_OFFSET &
@ -226,10 +221,11 @@ int ssd1306_write_page(const struct device *dev, u8_t page, void const *data,
SSD1306_CONTROL_LAST_BYTE_DATA,
data, length);
}
#endif
int ssd1306_write(const struct device *dev, const u16_t x, const u16_t y,
const struct display_buffer_descriptor *desc,
const void *buf)
static int ssd1306_write(const struct device *dev, const u16_t x, const u16_t y,
const struct display_buffer_descriptor *desc,
const void *buf)
{
size_t buf_len;
@ -332,7 +328,7 @@ static int ssd1306_set_brightness(const struct device *dev,
return -ENOTSUP;
}
int ssd1306_set_contrast(const struct device *dev, const u8_t contrast)
static int ssd1306_set_contrast(const struct device *dev, const u8_t contrast)
{
struct ssd1306_data *driver = dev->driver_data;
u8_t cmd_buf[] = {