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Fix some of the SSD1289 initial register settings

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4788 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2012-05-30 18:46:40 +00:00
parent 6cf57b87e9
commit 29be8bfc25
3 changed files with 22 additions and 13 deletions
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1
ChangeLog
View File

@ -2849,4 +2849,5 @@
* arch/arm/src/stm32_i2c.c: Fix STM32 F2 I2C. It is apparently bug-for-bug
compatible with the F4 and needs the same work-around for the missing BTF
signal that was needed for the F4.
* drivers/lcd/ssd1289.*: Fix some of the initial register settings.

28
drivers/lcd/ssd1289.c
View File

@ -224,7 +224,7 @@ static int ssd1289_setcontrast(FAR struct lcd_dev_s *dev, unsigned int contrast)
/* Initialization */
static inline void ssd1289_hwinitialize(FAR struct ssd1289_dev_s *priv);
static inline int ssd1289_hwinitialize(FAR struct ssd1289_dev_s *priv);
/**************************************************************************************
* Private Data
@ -823,7 +823,7 @@ static int ssd1289_setcontrast(FAR struct lcd_dev_s *dev, unsigned int contrast)
*
**************************************************************************************/
static inline void ssd1289_hwinitialize(FAR struct ssd1289_dev_s *priv)
static inline int ssd1289_hwinitialize(FAR struct ssd1289_dev_s *priv)
{
FAR struct ssd1289_lcd_s *lcd = priv->lcd;
#ifndef CONFIG_LCD_NOGETRUN
@ -997,7 +997,7 @@ static inline void ssd1289_hwinitialize(FAR struct ssd1289_dev_s *priv)
*/
ssd1289_putreg(lcd, SSD1289_ENTRY,
(SSD1289_ENTRY_ID_HINCVINC | SSD1289_ENTRY_TY_B |
(SSD1289_ENTRY_ID_HINCVINC | SSD1289_ENTRY_TY_C |
SSD1289_ENTRY_DMODE_RAM | SSD1289_ENTRY_DFM_65K));
#else
/* LG=0, AM=1, ID=3, TY=2, DMODE=0, WMODE=0, OEDEF=0, TRANS=0, DRM=3 */
@ -1005,7 +1005,7 @@ static inline void ssd1289_hwinitialize(FAR struct ssd1289_dev_s *priv)
ssd1289_putreg(lcd, SSD1289_ENTRY,
(SSD1289_ENTRY_AM | SSD1289_ENTRY_ID_HINCVINC |
SSD1289_ENTRY_TY_B | SSD1289_ENTRY_DMODE_RAM |
SSD1289_ENTRY_TY_C | SSD1289_ENTRY_DMODE_RAM |
SSD1289_ENTRY_DFM_65K));
#endif
@ -1101,11 +1101,13 @@ static inline void ssd1289_hwinitialize(FAR struct ssd1289_dev_s *priv)
#if 0
up_mdelay(50);
#endif
return OK;
}
#ifndef CONFIG_LCD_NOGETRUN
else
{
lcddbg("Unsupported LCD type\n");
return -ENODEV;
}
#endif
@ -1130,6 +1132,8 @@ static inline void ssd1289_hwinitialize(FAR struct ssd1289_dev_s *priv)
FAR struct lcd_dev_s *ssd1289_lcdinitialize(FAR struct ssd1289_lcd_s *lcd)
{
int ret;
lcdvdbg("Initializing\n");
/* If we ccould support multiple SSD1289 devices, this is where we would allocate
@ -1151,16 +1155,20 @@ FAR struct lcd_dev_s *ssd1289_lcdinitialize(FAR struct ssd1289_lcd_s *lcd)
/* Configure and enable LCD */
ssd1289_hwinitialize(priv);
ret = ssd1289_hwinitialize(priv);
if (ret == OK)
{
/* Clear the display (setting it to the color 0=black) */
/* Clear the display (setting it to the color 0=black) */
ssd1289_clear(&priv->dev, 0);
ssd1289_clear(&priv->dev, 0);
/* Turn the display off */
/* Turn the display off */
ssd1289_poweroff(lcd);
return &g_lcddev.dev;
}
ssd1289_poweroff(lcd);
return &g_lcddev.dev;
return NULL;
}
/**************************************************************************************

6
drivers/lcd/ssd1289.h
View File

@ -120,8 +120,8 @@
/* Driver output control */
#define SSD1289_OUTCTRL_MUX_SHIFT (0) /* Number of lines for the LCD driver */
#define SSD1289_OUTCTRL_MUX_MASK (0x1ff < SSD1289_OUTCTRL_MUX_SHIFT)
# define SSD1289_OUTCTRL_MUX(n) ((n) < SSD1289_OUTCTRL_MUX_SHIFT)
#define SSD1289_OUTCTRL_MUX_MASK (0x1ff << SSD1289_OUTCTRL_MUX_SHIFT)
# define SSD1289_OUTCTRL_MUX(n) ((n) << SSD1289_OUTCTRL_MUX_SHIFT)
#define SSD1289_OUTCTRL_TB (1 << 9) /* Selects the output shift direction of the gate driver */
#define SSD1289_OUTCTRL_SM (1 << 10) /* Scanning order of gate driver */
#define SSD1289_OUTCTRL_BGR (1 << 11) /* Order from RGB to BGR in 18-bit GDDRAM data */
@ -285,7 +285,7 @@
/* Power control 4 */
#define SSD1289_PWRCTRL4_VDV_SHIFT (9) /* Set amplitude magnification of VLCD63 */
#define SSD1289_PWRCTRL4_VDV_SHIFT (8) /* Set amplitude magnification of VLCD63 */
#define SSD1289_PWRCTRL4_VDV_MASK (32 << SSD1289_PWRCTRL4_VDV_SHIFT)
# define SSD1289_PWRCTRL4_VDV(n) ((n) << SSD1289_PWRCTRL4_VDV_SHIFT)
#define SSD1289_PWRCTRL4_VCOMG (1 << 13) /* VcomL variable */