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

Add power methods

Browse Source 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2666 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2010-05-12 13:00:19 +00:00
parent f4b2cc410e
commit 9b75e76094
1 changed files with 56 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

62
drivers/lcd/p14201.c
View File

@ -96,7 +96,19 @@
#endif
#if CONFIG_LCD_MAXCONTRAST > 255
# error "CONFIG_LCD_MAXCONTRAST exceed supported maximum"
# error "CONFIG_LCD_MAXCONTRAST exceeds supported maximum"
#endif
/* Check power setting */
#if !defined(CONFIG_LCD_MAXPOWER)
# define CONFIG_LCD_MAXPOWER 1
#endif
#if CONFIG_LCD_MAXCONTRAST > 1
# warning "CONFIG_LCD_MAXPOWER exceeds supported maximum"
# undef CONFIG_LCD_MAXPOWER
# define CONFIG_LCD_MAXPOWER 1
#endif
/* Define the following to enable register-level debug output */
@ -155,6 +167,7 @@ struct rit_dev_s
struct lcd_dev_s dev; /* Publically visible device structure */
FAR struct spi_dev_s *spi; /* Cached SPI device reference */
uint8_t contrast; /* Current contrast setting */
bool on; /* true: display is on */
};
/**************************************************************************************
@ -309,11 +322,25 @@ static const uint8_t g_initcmds[] =
3, SSD1329_PRECHRG1_VOLT, /* Set First Precharge voltage, VP */
0x3f, /* 1.00 x Vcc */
SSD1329_NOOP,
2, SSD1329_SLEEP_OFF, /* Matrix display ON */
SSD1329_NOOP,
0 /* Zero length command terminates table */
};
/* Turn the maxtrix display on (sleep mode off) */
static const uint8_t g_sleepoff[] =
{
SSD1329_SLEEP_OFF, /* Matrix display ON */
SSD1329_NOOP,
};
/* Turn the maxtrix display off (sleep mode on) */
static const uint8_t g_sleepon[] =
{
SSD1329_SLEEP_ON, /* Matrix display OFF */
SSD1329_NOOP,
};
/**************************************************************************************
* Private Functions
**************************************************************************************/
@ -458,7 +485,7 @@ static void rit_sndbytes(FAR struct spi_dev_s *spi, FAR const uint8_t *buffer,
/* Clear the D/Cn bit to enable command mode */
oled_data(spi, data);
rit_seldata(spi, data);
/* Loop until the entire command is transferred */
@ -472,7 +499,6 @@ static void rit_sndbytes(FAR struct spi_dev_s *spi, FAR const uint8_t *buffer,
/* Send a dummy byte */
(void)SPI_SEND(spi, 0xff);
}
/* De-select the SD1329 controller */
@ -614,7 +640,11 @@ static int rit_getplaneinfo(FAR struct lcd_dev_s *dev, unsigned int planeno,
static int rit_getpower(struct lcd_dev_s *dev)
{
return -ENOSYS; /* Not implemented */
struct rit_dev_s *priv = (struct rit_dev_s *)dev;
DEBUGASSERT(priv);
gvdbg("power: %s\n", priv->on ? "ON" : "OFF");
return (int)priv->on;
}
/**************************************************************************************
@ -628,7 +658,26 @@ static int rit_getpower(struct lcd_dev_s *dev)
static int rit_setpower(struct lcd_dev_s *dev, int power)
{
struct rit_dev_s *priv = (struct rit_dev_s *)dev;
DEBUGASSERT(priv && (unsigned)power <= CONFIG_LCD_MAXPOWER && priv->spi);
gvdbg("power: %d\n", power);
if (power > 0)
{
/* Re-initialize the SSD1329 controller */
rit_sndcmds(priv->spi, g_initcmds);
/* Take the display out of sleep mode */
rit_sndcmd(priv->spi, g_sleepoff, sizeof(g_sleepon));
}
else
{
/* Put the display into sleep mode */
rit_sndcmd(priv->spi, g_sleepon, sizeof(g_sleepon));
}
return -ENOSYS; /* Not implemented */
}
@ -716,6 +765,7 @@ FAR struct lcd_dev_s *rit_initialize(FAR struct spi_dev_s *spi, int devno)
priv->dev.setcontrast = rit_setcontrast;
priv->spi = spi;
priv->contrast = RIT_CONTRAST;
priv->on = false;
return &priv->dev;
}
return NULL;